巴西专利BR112016028638B1 REMOVABLE ATTACHABLE COMB AND CUTTING HEAD

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专利摘要:
Removable attachable comb and shaving head. the present disclosure relates to an attachable removable comb (60) for a blade assembly (22) of a cutting head (20) of a hair cutting apparatus (10), said removable comb (60) comprises a support structure (62) comprising a first side gripping bar (68), a second side gripping bar (70), and at least one laterally extending support bar (64, 66) and disposed between the first side grip bar (68) and second side grip bar (70); a plurality of guide teeth (72) defining a front skin-contacting face (74); a plurality of snap-in elements (78, 80); the snap-in elements (78, 80) being spaced apart from the first side gripping bar (68) and the second side gripping bar (70); wherein at least one of the snap-in elements (78, 80) is configured as a proximal snap-in element (78) which is disposed on a first proximal side (84); wherein at least one of the snap-in elements (78, 80) is configured as a distal snap-in element (80) which is disposed on a first distal side (86); and wherein the at least one proximal snap-in element (78) and the at least one distal snap-in element (80) are arranged to mutually secure the set of blades (22) together to secure the attachable comb ( 60) to the cutting head (20). the present disclosure further relates to a cutting head (20) of a lint-cutting apparatus (10) which is fitted to a respective attachable comb (60).
公开号:BR112016028638B1
申请号:R112016028638-3
申请日:2016-02-02
公开日:2021-06-22
发明作者:Kin Fatt Phoon；Jens Andersson
申请人:Koninklijke Philips N.V.；
IPC主号:

专利说明:

FIELD OF THE INVENTION
[001] The present disclosure relates to an attachable comb for a set of blades of a cutting head of an apparatus for hair cutting, particularly for a set of blades supported pivotally. The present disclosure further relates to a cutting head of a hair cutting apparatus and a hair cutting apparatus that can be fitted to an attachable comb. More particularly, the present disclosure relates to a hair trimming apparatus which is operable in a hair trimming mode and in a shaving and waxing mode. BACKGROUND OF THE INVENTION
[002] WO 2013/150412 A1 discloses a hair cutting apparatus and a corresponding blade set of a hair cutting apparatus. The blade assembly comprises a stationary blade and a mobile blade, the mobile blade being reciprocally driven with respect to the stationary blade to cut hair. The set of blades is particularly suitable for enabling trimming and shaving and waxing operations.
[003] For the purposes of trimming body hair, there are basically two distinct types of electrical appliances: shaving or shaving devices and hair clippers or clippers. In general, the razor or epilator is used for shaving or depilation, that is, to cut body hair at the level of the skin in order to obtain smooth skin without short, spiky hairs. The hair trimmer is normally used to cut the hair at a chosen distance from the skin, that is, to cut the hair to a desired length. The application difference is reflected in the different structure and architectures of the cutting blade layout implemented in any apparatus.
[004] An electric shaving or waxing apparatus typically includes a metal foil, i.e. an ultra-thin perforated screen, and a cutting blade that is movable along the interior of and relative to the foil. During use, the outside of the foil is placed and pushed against the skin so that any hairs that penetrate the foil are cut by the cutting blade that moves relative to the interior of the foil, and fall into the hollow collection portions of hair inside the razor or epilator.
[005] An electric hair trimmer, on the other hand usually includes, in general, two cutter blades having a serrated edge, one placed on top of the other so that the respective serrated edges overlap. In operation, the cutter blades reciprocate in relation to each other, cutting any hairs that are trapped between their teeth in a scissors action. The exact level above the skin at which the hair is cut is usually determined by means of an additional attachable part called a bulkhead (spacer) or comb.
[006] Additionally, combined devices are known which are basically adapted for both shaving or waxing and trimming purposes. However, these devices merely include two separate and distinct cutting sections, namely, a shaving or epilating section comprising a configuration that corresponds to the concept of electric razors or epilators as set out above, and a trimming section comprising a configuration which, on the other hand, corresponds to the concept of fur trimmers.
[007] Ordinary electric shaving or epilating devices are not particularly suitable for cutting hair to a desired variable length above the skin, ie for precise trimming operations. This can be explained, at least in part, by the fact that they do not include mechanisms to space the foil, and hence the cutting blade, from the skin. However, even if they included, for example by the addition of spacer fastening parts such as spacing combs, the sheet metal configuration, which normally involves a large number of small perforations, would decrease the efficient capture of all at least the shortest ones. and harder.
[008] Similarly, common hair trimmers are not particularly suitable for shaving or waxing, mainly because the separate cutter blades require a certain rigidity and therefore thickness to perform the scissors action without deformation. It is the minimum required skin-facing blade thickness that prevents hair from being cut close to the skin. Consequently, a user who wants to either shave or shave or trim their body hair may need to purchase and use two separate appliances.
[009] Additionally, combined shaving or waxing and trimming devices show several disadvantages, since basically they require two sets of cutting blades and respective drive mechanisms. As a result, these devices are heavier and more susceptible to wear and tear than standard, single-function hair clippers, and they also require expensive assembly and manufacturing processes. Similarly, the operation of these combined devices is often considered quite uncomfortable and complex. Even in case a conventional combined shaving or waxing and trimming device is used, which comprises two separate cutting sections, handling the device and switching between different operating modes can be considered to be time consuming and not very user-friendly. Since the cutting sections are normally installed in different places on the device, the orientation accuracy (and therefore also the cutting accuracy) can be reduced, as the user needs to get used to two dominant and distinct ways of holding the device. device during operation.
[0010] Document No. WO 2013/150412 A1 above solves some of these problems by providing a set of blades comprising a stationary blade that houses the movable blade so that a first portion of the stationary blade is disposed on the side of the blade mobile facing the skin when used for shaving or waxing, and that a second portion of the stationary blade is disposed on the side of the mobile blade away from the skin when in use. Additionally, in a serrated cutting edge, the first portion and the second portion of the stationary blade are connected, thus forming a plurality of stationary teeth that cover the respective teeth of the movable blade. Consequently, the movable blade is countered by the stationary blade.
[0011] This arrangement is advantageous in that the stationary blade can provide the set of blades with better strength and rigidity, since the stationary blade is also present on the side of the mobile blade facing the opposite side of the skin. This can generally enable a reduction in the thickness of the first portion of the stationary blade on the skin-facing side of the movable blade. Consequently, since in this way the movable blade can be closer to the skin during the operation, the set of blades above is well suited for shaving or hair removal operations. Furthermore, the set of blades is also particularly suitable for hair trimming operations, since the configuration of the cutting edge, including the respective teeth that alternate with slots, also allows longer hairs to enter the slots and, consequently, are cut by the relative cutting movement between the moving blade and the stationary blade.
[0012] US Patent No. 3,008,233 A discloses a hair trimmer attachment for removably attaching to the shaving head of an electric razor or epilator, such attachment including a pair of spaced longitudinally extending ribs at a distance to accommodate the cutting head therebetween, and a plurality of transversely extending teeth formed integrally with said ribs and located above the ribs, said teeth having an internal shape to conform to the shape of the cutting head. cutting of said electric razor or waxing device to ensure a fit of the accessory close to the head.
[0013] US Patent No. 2012/233865 A1 discloses an adjustable comb assembly attachable to an electric hair cutting apparatus, the comb assembly comprising a plurality of teeth to regulate a cut length of hair resulting from the hair being cut by the cutting edge of the electric hair trimmer, and when the adjustable comb assembly is attached to the electric hair trimmer, the teeth are selectively movable in relation to the cutting edge of the electric hair trimmer for either from numerous substantially different positions of hair cut lengths.
[0014] US Patent No. 2002/092178 A1 discloses a hair cutter, comprising a housing, a set of rotating blades detachably connected to said housing, said set of blades having two cutting edges and a plane single-cut, wherein said set of blades is adapted to selectively rotate about an axis substantially normal to said cutting plane, and a switch mechanism is operatively connected to said set of blades to selectively unlock said set of blades , thus enabling said set of blades to be rotated around the axis.
[0015] US patent No. 2014/0215832 A1 discloses a removable comb that is intended to be attached to a hair or beard trimmer, the comb comprising a lock that allows, in use, to attach said comb to a trimmer , where said lock is positioned on an arch whose curvature increases when pressure is applied to the sides of the arch, and the increase in curvature in the arch causes the comb to unlock.
[0016] A comb, as disclosed in US Patent No. 2014/0215832 A1, can be reliably attached to and removed from a housing of a hair-cutting apparatus. The latch of said comb, which is to some extent deflectable, can be tilted by the user of said device. However, to engage and disengage the magazine, the user must exert a considerable level of force on the sides of the magazine. In principle, this arrangement is suitable for a direct attachment of the comb to a rigid housing of the hair cutter.
[0017] JP S53 23677 U discloses an attachable comb for a haircutting device. This comb comprises locking protrusions which are formed integrally with ribs, which allow the user to grip the comb to remove it from the haircutting device.
[0018] However, apparatus for cutting hair are known that use sets of blades that are fixed to them in an articulated or pivotal manner. In other words, the set of blades can rotate relative to the housing of the hair trimmer so as to align with a contour of the skin being processed at that moment. This can significantly increase the shaving or shaving ability of the hair trimmer. If it is desired to maintain the blade assembly's ability to rotate or articulate when a magazine is attached to it, consideration must be given to holding forces, actuating forces, and other implications that may arise from direct attachment of the magazine.
[0019] Consequently, there is still a need for improvement in hair-cutting apparatus. This can particularly involve aspects related to user comfort and aspects related to performance. Particularly with pile cutting apparatus comprising blade assemblies that are pivotally secured to the housing, operating the apparatus in different modes of operation can present a number of challenges. In particular, it may be difficult to reliably space the blade assembly of such a device from the user's face. SUMMARY OF THE INVENTION
[0020] It is an object of the present disclosure to provide an attachable comb that is arranged for trimming operations and that can be easily attached to and detached from a set of blades of a hair-cutting apparatus. More preferably, if the hair trimming apparatus provides the ability to follow the contour, the attachable comb should be directly attachable to the blade assembly so that the blade assembly and the attached comb can still be hinged or rotated in relation to the hair-cutting device, in order to align with the contour of the skin to be processed at that moment. Advantageously, the present disclosure can solve at least some disadvantages inherent in cutting apparatuses known from the prior art, as discussed above. It is additionally preferred to provide a shaving head for a hair trimming apparatus and a hair trimming apparatus which are arranged and suitable for both shaving or waxing and trimming operations. It is particularly preferred that the attachable comb improves the trimming performance of the hair trimmer.
[0021] In a first aspect of the present disclosure, an attachable removable comb is presented for a set of blades of a cutting head of a hair cutting apparatus, particularly for a set of pivotally supported blades, as claimed in claim 1.
[0022] This aspect is based on the perception that the provision of the attachable comb, particularly the act of engaging and/or removing the attachable comb, can be significantly simplified when the handling zones, particularly the contact zones, where the user can hold the attachable comb, are arranged as separate entities which are preferably distinct from or remote from any snap-in element that engages the blade assembly and secures the attachable comb thereto. In other words, the snap-in elements can be called self-actuating or self-actuating snap-in elements which are, in a sense, self-actuating or automatically actuated when the attachable comb approaches and engages the blade assembly. In other words, the user simply indirectly operates the snap-in elements by bringing the blade assembly closer to the attachable magazine. Thus, the act of engaging the attachable magazine simply requires the attachable magazine to be slid or pushed over the blade assembly.
[0023] In contrast, document US 2014/0215832 A1 above teaches to tilt the removable comb latch, applying pressure to the sides of an arch where said latch is positioned so as to engage or disengage said latch. This can be considered a suitable measure for engaging the attachable comb to a fixed housing of a hair trimmer. However, if one wishes to maintain the ability to follow the contour of the haircutting apparatus even when the comb is attached to it, any actuating force and/or engagement force that the attachable comb applies on the haircutting apparatus is exerted on the set of blades itself. Consequently, as the blade assembly is basically fixed and received in a movable manner relative to the housing of the hair-cutting apparatus, any force that may be generated in the course of the engagement process must be limited. By dividing or separating the points where the user actually comes into contact with the attachable comb and the location of the snap-in elements engage the blade set and secure the attachable comb to the blade set, it can be ensured that the engagement force and/or any tension that is attributable to the engagement force may be limited.
[0024] More particularly, an influence or an impact of an actuating force applied by the user to the lateral gripping bars on the engagement force can be limited and/or reduced to a tolerable level, as the actuating force of the user is not directly converted into engagement force.
[0025] Furthermore, according to the above aspect, the attachable comb can take advantage of the fact that the user normally tends to hold and actuate the attachable comb on the sides and ends of the comb. This is mainly due to the fact that the user normally tries to avoid touching the attachable comb on the longitudinal sides of the comb that are associated with the notched leading edge of the shaving head.
[0026] It is worth mentioning in this context that the attachable comb can preferably be mounted on hair-cutting apparatus using blade sets that are arranged as dual-use or multi-purpose blade sets that are suitable for both trimming operations like shaving or waxing.
[0027] In an exemplary modality of the attachable comb, the first lateral gripping bar and the second lateral gripping bar are provided with a respective indication that prompts the user to hold and engage the attachable comb. Alternatively or additionally, the first lateral gripping bar and the second lateral gripping bar are provided with a respective depression or recess to indicate the desired force application points. In this way, a clear indication of the actuation positions and an unambiguous engagement/disengagement action of the attachable magazine can be obtained.
[0028] In an exemplary embodiment, the attachable comb is arranged to be directly attached to the set of blades. In this way, the attachable comb can be arranged to be attached intermediately to any housing portion of the cutting head apparatus thereof. Consequently, in at least some embodiments, by implementing a pivotally supported contour that follows the blade assembly, the blade assembly and the attachable comb attached thereto can be moved relative to the housing in a pivotal manner.
[0029] Preferably, a first pair of engaging elements and a second pair of engaging elements are provided, each of which is composed of a proximal snap-in element and a respective distal snap-in element which are aimed at each other. Preferably, each of the first and second pair of snap-in elements comprises a proximal snap-in element and a distal snap-in element which are aligned with each other in the lateral direction. Preferably, the first pair of snap-in elements is associated with the first side end, and the second pair of snap-in elements is associated with the second side end of the attachable comb. This can, of course, include that the respective snap-in elements are spaced a distance from the respective first side gripping bar and the second side gripping bar. In other words, it is preferred that a drive (i.e. the employment of a pushing force) of the first side gripping bar and the second side gripping bar does not directly cause a respective drive of the snap-in elements. On the other hand, it is preferred that the snap-in elements can be actuated or deflected independently of an actuation of the lateral gripping bars. As the attachable magazine approaches and contacts the blade assembly, the snap-in elements can be actuated and deflected by the act of placing or pulling the attachable magazine from the blade assembly.
[0030] In one embodiment, at least one of the proximal snapping element or the distal snapping element, preferably each snapping element, is secured to the support structure in a deflectable and deformable manner when the attachable comb approaches the blade set in one direction of engagement and engages the blade set. For this purpose, a live joint or at least a deflectable portion can be provided in a transition zone between the support structure and the respective snap-in element.
[0031] Preferably, the direction of engagement or, so to speak, the desired (ideal) engagement direction is basically linear. In other words, the user can attach or release the attachable comb simply by holding it on the side pressure bars and approaching and engaging the blade assembly in a basically linear motion until the snap-on elements secure the attachable comb in the assembly of blades. Consequently, attaching or releasing the attachable comb can become even simpler, as no combined engagement movement is required. For example, some conventional attachable reeds may require a multidimensional engagement movement, for example a combination of a linear approach movement and a rotational and/or rotary engagement movement to respectively approximate the blade assembly and secure the attachable reed to the same. According to the above modality, the operation of the engageable comb is even easier, which also reduces the risk of malfunction.
[0032] As indicated above, an engagement deflection of the snap-in element basically occurs independently of an actual level of an actuating force and/or gripping force of the user. The deflection of the snap-in elements is primarily induced or caused by the snapping movement, as such. Consequently, a simple movement-related engagement operation can indirectly cause the necessary engagement and holding force.
[0033] According to another modality of the attachable comb, at least one of the proximal snapping element and the distal snapping element, preferably each snapping element, is deformed in a self-deflective manner when the attachable magazine is fixed to the blade assembly, and is deformed in a self-deflective manner when the attachable magazine is removed from the blade assembly. That is, the snap-in elements can be indirectly operated by driving or gripping the attachable comb and by applying an engaging force (or a removal force) to the first side gripping bar and the second side gripping bar . Preferably, the proximal snap engaging elements deflect in a deflection direction which is opposite to the deflection direction of the snap engaging element. Furthermore, the deflection directions of the snap-in elements are preferably substantially perpendicular to a direction of the biasing force that the user can apply to the first side gripping bar and the second side gripping bar.
[0034] In yet another modality of the attachable comb, the snap-in elements, when engaging the set of blades, induce the attachable comb to a defined position and orientation in relation to the set of blades. Preferably, in a further refinement of the attachable comb, the snap-in elements, when engaging the blade assembly, retain the attachable comb in a manner by force-fitting and positively locking thereon. Consequently, the attachable comb can be attached to the blade assembly without significant wobble. Preferably, the attachable comb is at least slightly tilted in the engaged state. This can increase cutting performance and can reduce any rattling and running noise.
[0035] In yet another modality of the attachable comb, the snap-in elements are arranged distinct from or remote from the first side grip bar and the second side grip bar, wherein the at least two snap-in elements are, in an engaged state, associated with a toothed leading edge of the blade assembly. Consequently, the snap-in elements can engage the blade assembly at or adjacent to the respective toothed leading edge. In this way, the attachable comb can be precisely oriented and positioned on the blade assembly. This can significantly increase cutting performance. As indicated above, the user does not have to apply an actuating force that acts directly on the notched leading edge. Instead, the actuating driving force applied by the user to the lateral ends of the attachable comb is primarily supported by the receiving structure of the attachable comb.
[0036] In another refinement of the above modality, the at least two pressure-engaging elements comprise a retaining portion, particularly a retaining protrusion, which engages, in the engaged state, a stationary blade of the set of blades in the vicinity of the toothed anterior edge. Preferably, the retaining portion engages the stationary blade in a direction that is perpendicular to the longitudinal extent of the serrated leading edge and engages the stationary blade at respective lateral ends of the adjacent serrated lead edge, but not the lateral gripping bars. Preferably, the at least one snap-in element and the at least one snap-in element define, when viewed in the direction of engagement, a nip zone and, after that nip zone, a seating or receiving zone. In other words, the attachable comb can be provided with a crimping orientation geometry that facilitates the attachment process. Preferably, the attachable comb is self-aligning as it approaches the blade assembly.
[0037] In yet another refinement of the above modality, the at least two proximal snap engagement elements are, in the engaged state, associated with a first serrated front edge of the set of blades, the at least two snap engaging elements are, in the engaged state, associated with a second toothed leading edge of the blade assembly, and the at least two distal pressure engaging elements comprising a retaining portion, particularly a retaining protrusion, which engages, in the state. engaged, the stationary blade of the blade assembly in the vicinity of the second toothed leading edge. Consequently, each pair of distal and proximal snap engagement elements can tilt or lock the blade assembly together. The respective tilting forces or locking forces are applied to the blade set in a direction that is basically perpendicular to the longitudinal direction.
[0038] Preferably, the proximal snap engaging elements and the distal snap engaging element engage the stationary blade of the blade assembly in the reinforced lateral end portions of the respective longitudinal extent thereof. Assuming that a first pair of snap-in elements and a second pair of snap-in elements are provided, the teeth of the toothed leading edge of the blade assembly can be disposed between the contact points of the two pairs.
[0039] In yet another modality of the attachable comb, the guide teeth additionally define a blade assembly receiving seat facing the opposite side of the front skin contact face. Furthermore, the front face and the receiving seat can be arranged with each other at a desired space and angle. Consequently, in the engaged state of the attachable comb, the blade assembly can be oriented in a desired manner with respect to the portion of the skin to be processed.
[0040] In another embodiment of the attachable comb, the at least one snap-in element is formed on a respective clamping tooth which is provided with a weakening recess. In general, the attachable comb can comprise a series of teeth which are basically arranged in a parallel manner. At least some of the teeth can be arranged as guide teeth. At least one tooth that can be disposed on a lateral end of the attachable comb can be provided with a recess or weakening space so as to enhance the flexibility and/or deflection behavior of the at least one proximal snap-engaging element. Preferably, two engageable teeth are provided at respective lateral ends of the series of teeth.
[0041] According to another embodiment of the attachable comb, the at least one distal snap-on element is arranged as a snap-on hook on a rear support bar of the receiving structure. For that purpose, a recess or slit may be formed in the rear support bar so as to provide a respective weakening to enhance the flexing and/or deflecting behavior of the at least one distal pressure engaging element.
[0042] In yet another embodiment of the attachable comb, the receiving structure is additionally arranged to cover, in the engaged state, a second serrated leading edge of the blade assembly which is disposed opposite a first serrated leading edge of the blade assembly. As a consequence, the attachable comb can clearly indicate the serrated leading edge which is to be used for the desired hair trimming operation. It may be additionally preferred in this context that the attachable comb is arranged as a reversible attachable comb that can be engaged with the blade assembly in two orientations so as to selectively block or disable a first serrated leading edge or a second serrated leading edge of the blade assembly. blades. In other words, according to this refinement, the attachable comb can be engaged in a first forward orientation and a second backward orientation. This can even enable cutting operations on hard-to-reach areas of the skin.
[0043] Preferably, the attachable comb is arranged as an integrally formed one-piece injection molded part. Preferably, the attachable comb is made of a resilient plastic material. For example, the attachable comb can be formed from a plastic material that is reinforced, particularly from fiber reinforced plastics.
[0044] In another aspect of the present disclosure, a cutting head for an apparatus for cutting hair, particularly for a personal care apparatus, is disclosed, the cutting head comprising: - a set of blades comprising a stationary blade and a cutting blade, the stationary blade and the cutting blade comprising at least one toothed leading edge defined together by the respective teeth of the stationary blade and the cutting blade, the teeth of the stationary blade and the cutting blade. of the cutting blade extend basically in a longitudinal direction, the stationary blade further comprising a front face, particularly on the teeth thereof, the front face being disposed on the face of a user's skin, during operation; and - an attachable comb in accordance with at least some aspects of the present disclosure,
[0045] wherein the attachable comb is releasably engaged with the blade assembly and arranged to position the blade assembly at a defined distance and orientation relative to a user's skin, when in operation.
[0046] According to this modality, the shaving head is particularly suitable for shaving or waxing operations, when the attachable comb is removed from the blade assembly. In the attached state, when the attachable comb engages the blade assembly, the cutter head is particularly suitable for hair trimming operations.
[0047] In one modality of the cutting head, the cutting head further comprises a swivel mechanism that couples the set of blades and a housing portion, the attachable comb being arranged, in the engaged state, to be articulated together with the set of blades with respect to the housing portion. In other words, the attachable comb can be attached to the blade assembly independently of the housing portion. Consequently, assuming that a contour following feature is provided by the rotating mechanism for the blade assembly, it is possible to follow the contour also when the attachable comb is engaged thereto. In other words, the attachable comb is not, according to this modality, directly attached to the housing, but rather indirectly coupled to the housing through the cutting head and the swivel mechanism.
[0048] In another embodiment of the cutting head, the blade assembly is releasably attached to a housing portion, the at least one proximal snapping element and the at least one distal snapping element are arranged so that a release force required to remove the attachable comb from the blade assembly is less than the release force required to remove the blade assembly from the housing portion.
[0049] This is particularly beneficial as the attachable comb can be engaged and removed in a definite and explicit way. Stated differently, if the release force required to remove the attachable comb from the blade assembly is greater than the release force that is required to remove the blade assembly from the housing portion, the user would almost always accidentally remove the blade assembly. blades from the housing portion before removing the attachable magazine from the blade assembly. It is again emphasized in this regard that, preferably, the attachable comb is not directly connected to the housing portion. Since the user actuation force applied to the first side grip bar and the second side grip bar of the attachable comb is not directly transferred to a release force, the risk of excessive tension is greatly reduced. In addition, so to speak, by disconnecting and separating the user pushing force level from the engagement force level and release force induced by the respective engagement and/or release movement, the engagement/disengagement force level can be precisely defined. This can further increase the operational reliability of the attachable magazine.
[0050] In yet another aspect of the present disclosure, a hair cutting apparatus is disclosed, particularly an electrically operated personal care apparatus, the hair cutting apparatus being arranged to be moved through the hair in a direction of movement for cutting hair, the hair cutting apparatus comprising a blade assembly, particularly, a pivotally engaged blade assembly, and an attachable comb in accordance with at least some aspects of the present disclosure. Preferably, the hair trimming apparatus is operable to shave or shave hair in a trimming mode when the attachable comb is removed from the hair shaving or epilating apparatus, and operable to trim hair in a trimming mode when the The attachable comb is engaged thereto, preferably the blade assembly is in both shaving or waxing and trimming modes configured to rotate so that the blade assembly can be adapted to and/or aligned with a surface of work, particularly the skin of a user. Consequently, in both modes of operation, a contour following feature may be present.
[0051] In yet another aspect of the present disclosure, a set of attachable combs may be provided which are arranged in accordance with at least some aspects of the present disclosure, particularly in terms of engagement features, and which provide orientations and/or positions defined relatives between the set of blades and the surface of the skin to be processed, in order to enable trimming operations in different lengths. BRIEF DESCRIPTION OF THE DRAWINGS
[0052] These and other aspects of the revelation will become evident and will be elucidated with reference to the modalities described below. In the following drawings:
[0053] Figure 1 shows a schematic perspective view of an apparatus for cutting exemplary hairs that can be adapted with an exemplary embodiment of an attachable comb according to the present disclosure;
[0054] Figure 2 shows a top perspective view of a set of blades of a head for an apparatus for hair cutting;
[0055] Figure 3 shows a perspective view of another exemplary embodiment of an exemplary hair cutting apparatus that is adapted to an embodiment of an attachable comb in accordance with the present disclosure;
[0056] Figure 4 shows another partial perspective view of the arrangement shown in Figure 3, the attachable comb being shown in a removed state;
[0057] Figure 5 is an enlarged perspective view of a set of blades and an attachable comb that can be engaged thereto, the attachable comb being shown in a removed state;
[0058] Figure 6 is a bottom view of the attachable comb shown in Figure 5, the attachable comb engaging a set of blades;
[0059] Figure 7 shows another bottom perspective view of the attachable comb shown in Figure 5, the attachable comb being shown in isolation;
[0060] Figure 8 shows yet another perspective view of the partial bottom of the attachable comb, as shown in Figure 7;
[0061] Figure 9 is a bottom perspective cross-sectional view of the arrangement shown in Figure 6;
[0062] Figure 10 is a side cross-sectional view of the arrangement of Figure 6 taken along lines X-X in Figure 6; and
[0063] Figure 11 shows yet another bottom perspective cross-sectional view of the arrangement shown in Figure 6, the view orientation of Figure 11 being slightly different from the view orientation of Figure 9. DETAILED DESCRIPTION OF MODALITIES
[0064] Figure 1 schematically illustrates, in a simplified perspective view, an exemplary modality of the apparatus for cutting hair 10, particularly, an apparatus for cutting electric hair. The lint-cutting apparatus 10 may comprise a housing or, more particularly, a housing portion 12, a motor indicated by a dashed block 14 in the housing portion 12 and a drive mechanism or a transmission system indicated by a dashed block. 16 in the housing portion 12. To drive the motor 14, in at least some embodiments of the hair-cutting apparatus 10, an electric battery, indicated by a dashed block 18 in the housing portion 12, may be provided, for example a battery rechargeable battery, a replaceable battery etc. However, in some embodiments, the cutting apparatus 10 may also be provided with a power cord for connection to a power source. A power supply connector can be provided in addition to or as an alternative to the electric (internal) battery 18.
[0065] The lint-cutting apparatus 10 may further comprise a cutting head 20. In the slitting head 20, a set of blades 22 can be attached to the lint-cutting apparatus 10. The blade set 22 may be driven by motor 14 through drive mechanism or drive system 16 to allow a cutting movement. Cutting motion can generally be thought of as a relative motion between a stationary blade and a movable cutting blade which are hereinafter described and discussed in more detail. In general, a user can manually pick up, hold and guide the cutting apparatus 10 through the hairs in a direction of movement 30 to cut the hairs. The cutting apparatus 10 can generally be considered an electrically guided or manually operated device. Furthermore, the cutting head 20 or, more particularly, the blade assembly 22 can be connected to the housing portion 12 of the cutting apparatus 10 in a pivotal manner, as shown by the curved double arrow indicated by the reference numeral 28 in the Figure. 1. In some applications, the shaving apparatus 10 can be moved along the skin to cut hair that grows on the skin. When the hairs are cut close to the skin, a shaving or waxing operation can basically be performed, aiming to cut or shave the hairs at skin level. However, cutting (or trimming) operations may also be contemplated, whereby the cutting head 20 comprising the blade assembly 22 is passed along a path at a desired distance from the skin.
[0066] When being guided through the hairs, the cutting apparatus 10 including the blade assembly 22 is normally moved along a common direction of motion which is indicated by reference numeral 30 in Figure 1. It is worth mentioning the It is in this regard that, because the lint-cutting apparatus 10 is normally guided and moved manually, the direction of movement 30 need therefore not necessarily be interpreted as a precise geometric reference that has a fixed definition and a relationship with respect to the orientation of the cutting apparatus 10 and its cutting head 20. That is, a general orientation of the hair cutting apparatus 10 with respect to the hairs to be cut into the skin can be interpreted as somewhat inconsistent. However, for illustrative purposes, it can be assumed with a reasonable degree of confidence that the (imaginary) direction of motion 30 is parallel (or generally parallel) to a principal central plane of a coordinate system that can serve, in the text. below, as a means of describing structural features of the haircutting apparatus 10.
[0067] For ease of reference, coordinate systems are indicated on several drawings in this document. By way of example, an X-Y-Z Cartesian coordinate system is shown in Figure 1. An X axis of the respective coordinate system extends in a generally longitudinal direction that is generally associated with length, for the purposes of this disclosure. A Y axis of the respective coordinate system extends in a lateral (or transverse) direction associated with width, for the purposes of this disclosure. A coordinate system Z axis extends in a height (or vertical) direction that can be considered for illustrative purposes only, at least in some embodiments, as a generally vertical direction. Of course, an association of the X-Y-Z coordinate system with characteristic features and/or modality of the pile cutting apparatus 10 is provided primarily for illustrative purposes and will not be interpreted in a limiting way. It should be understood that those skilled in the art can readily convert and/or transfer the coordinate system provided herein when confronted with alternative modalities, respective figures and illustrations that include alternative orientations. It is worth mentioning further that, for the purpose of the present disclosure, the X-Y-Z coordinate system is generally aligned with the main directions and orientations of the cutting head 20, particularly the blade assembly 22 thereof.
[0068] Figure 2 shows a top perspective view of a blade assembly 22 that can be implemented in the cutting head 20 illustrated in Figure 1. The blade assembly 22 comprises a stationary blade 24 and a cutting blade 26 that it can be moved relative to the stationary blade 24 in a reciprocating motion. The stationary blade 24 and the cutting blade 26 may together define at least one serrated leading edge 32, 34, preferably a serrated first leading edge 32 and a serrated second leading edge 34. The serrated first leading edge 32 and the second toothed leading edge 34 are arranged in parallel and facing away from each other. The movable cutting blade 26 is shown in Figure 2 with a dashed line. The cutter blade 24 can be driven by a drive shaft 50 reciprocally. Consequently, the cutter blade 26 and the stationary blade 24 can be reciprocally moved relative to each other and therefore cooperate to cut through those entering the gaps between the teeth 38 of the stationary blade 24 and the teeth 40 of the cutter blade 26 at the respective leading edges 32, 34 when the lint-cutting apparatus 10 is moved through the lint in the direction of movement 30.
[0069] The stationary blade 24 can be arranged as a screen for the movable cutting blade 26. It is particularly preferred that the stationary blade 24 comprises a first wall portion and a second wall portion, which are at least partially spaced from one another. another, so that a guide slot for the movable blade 26 is defined between them, see also the cross-sectional representations of the blade assembly 22 in Figures 9, 10 and 11. Consequently, the stationary blade 24 can also cover the blade. cutting 26 on at least one toothed leading edge 32, 34.
[0070] As already indicated above, the blade assembly 22 may be particularly suitable for shaving or waxing and trimming operations. Shave or waxing performance and trimming performance can be further improved when the blade set 22 is able to follow a real skin contour. Accordingly, it is particularly preferred that the blade assembly 22 is pivotally attached to the housing portion 12 of the hair trimming apparatus 10. A swivel mechanism is indicated in Figure 2 by reference numeral 42. The blade assembly 22 is attached to a swivel mechanism 42. The swivel mechanism 42 can form a portion of the cutting head 20 which is interposed between the blade assembly 22 and the housing portion 12. The swivel mechanism 42 can define a pivot or, instead, a virtual pivot for blade assembly 22; see double curved arrow 28 in Figures 1 and 2.
[0071] Then, to define a maximum rotary angle of the blade assembly 22 relative to the housing portion 12, the rotary mechanism 42 may comprise a limit lock 44 that can cooperate with a contact surface 46 to define an allowable range of movement swivel. By way of example, the swivel mechanism 42 can be arranged as a four-bar link mechanism. In this embodiment, the swivel mechanism 42 comprises a base coupling 52 that can be secured to the housing portion 12. A first side coupling 54 and a second side coupling 56 can be coupled to the base coupling 52. At a top end thereof. , the swivel mechanism 42 may comprise a butt coupling 58 connecting the first side coupling 54 and the second side coupling 56. Between the respective couplings 52, 54, 56, 58, gaskets, particularly live gaskets, can be provided. the relative rotation between neighboring couplings and, therefore, the pivotal movement in general.
[0072] In general, at least in some embodiments, the cutter head 20 can be considered a replaceable and/or removable cutter head. For that purpose, the cutting head 20 may comprise a clamping interface 48 which is arranged to engage a respective receiving interface with the housing portion 12 of the hair-cutting apparatus 10. In particular, the cutting head 20 may be arranged as a 20 pluggable cutting head. As already indicated above, the blade assembly 22, particularly the cutting blade 26 thereof, may be coupled to the drive shaft 50. The drive shaft 50 may comprise an eccentric portion which can rotate about a longitudinal axis of the shaft. drive 50. Accordingly, an eccentric drive mechanism 16 can be provided to drive the movable cutting blade 26 reciprocally with respect to the stationary blade 24.
[0073] When the swivel mechanism 42, illustrated in Figure 2 or another exemplary embodiment of a swivel mechanism, is installed in the shaving head 20, it may be particularly suitable for shaving or waxing operations. However, it is additionally preferred that the lint cutting apparatus 10 is also suitable for lint trimming operations. Hair trimming may involve cutting hair to a desired length. The desired length for the rest of the hairs can be defined by a so-called attachable comb. When attaching the attachable comb to the hair-cutting apparatus 10, it should be considered that the blade assembly 22 is preferably pivotally engaged with the housing portion 12. In at least some embodiments, as discussed herein, it is It is preferred that the contour following feature is also provided in the trim mode when the attachable comb is engaged with the blade assembly 22. Therefore, in contrast to prior art devices as, for example, disclosed in US 2014/0215832 A1, it is preferable not to directly attach the attachable comb to the housing portion 12 which, in turn, would lock or block the swivel mechanism 42.
[0074] With specific reference to Figures 3 to 11, an exemplary embodiment of an attachable comb 60 for a hair-cutting apparatus 10 will be illustrated and described in more detail. The attachable comb 60 shown in Figure 3 is in an engaged state. In contrast, the attachable comb 60 shown in Figure 4 is in an disengaged state. Figure 3 and Figure 4 illustrate an exemplary embodiment of a housing portion 12 of a hair-cutting apparatus 10. Housing portion 12 is shaped in a basically elongated fashion. However, along its full longitudinal extent, the housing portion 12 is at least slightly curved or banana-shaped. As a consequence, as can be seen in Figure 4, a main orientation of a respective set of blades 22 is slightly offset or slanted with respect to the handle portion or gripping portion of the housing portion 12 which is normally disposed at one end thereof. which is opposite the shaving head 20.
[0075] The cutting head 20 and particularly the blade assembly 22 and the rotating mechanism 42 can be basically arranged according to the modality described above, according to Figure 2. Preferably, the attachable comb 60 is directly attached to blade assembly 22. In addition, attachable comb 60 is preferably not directly attached to housing portion 12. As a consequence, attachable comb 60 can also be pivoted by pivot mechanism 42 relative to housing portion 12 , see also pivoting arrow 28 in Figure 3. Accordingly, the contour-following feature of the pile trimming apparatus 10 is also maintained when the pile trimming apparatus 10 is in the pile trimming mode.
[0076] However, this arrangement presents several challenges to the engagement and/or attachment process and the respective engagement features of the attachable comb 60. It should be considered that the blade assembly 22 is a small and, to some extent, fragile unit . As a result, the attachable comb 60 is particularly adapted to the desired direct engagement with the blade assembly 22. In addition, as already indicated above, the blade assembly 22 and/or the cutting head 20, including the blade assembly 22 and the swivel mechanism 42 can be secured to housing portion 12 in a releasable manner. Therefore, it should be considered that the removal of the attachable comb 60 does not also accidentally remove the blade assembly 20 or the rotating mechanism 42 from the hair-cutting apparatus 10.
[0077] In this regard, further reference is made to Figures 5 to 7. As can be seen from the top perspective view of Figure 5 and the bottom or bottom perspective view of Figure 7, the attachable comb 60 of this modality comprises a support structure 62 comprising a first support bar 64 and a second support bar 66. Preferably, the support bar 64 and the support bar 66 are displaced with respect to one another in a basically parallel manner. The support bar 64 may be called the distal, rear or front support bar 64. The support bar 66 may be called the proximal, front support bar 66. The support bar 66 is disposed on the longitudinal side of the attachable comb 60 so that when running it basically touches the skin to be processed first.
[0078] On the respective lateral sides of the support structure 62, a first lateral gripping bar 68 and a second lateral gripping bar 70 are provided. The support bars 64, 66 extend from the side grip bar 68 to the side grip bar 70. The side grip bars 68, 70 basically extend in the longitudinal direction X and/or in a plane which is defined by The longitudinal direction X and the vertical direction Z. The support bars 64, 66 basically extend in the lateral direction Y. The support bars 64, 66 and the lateral gripping bars 68, 70 together define the support structure 62 of the comb attachable 60. The support bars 64, 66 are, in the engaged state, arranged basically parallel to the lateral extension of the toothed front edges 32, 34.
[0079] As can best be seen from Figures 9, 10 and 11, the support bar 64 covers the toothed leading edge 34. As a consequence, the toothed edge 34 is slightly blocked or disabled in the engaged state of the attachable comb 60. On the other hand, support bar 66 is associated with serrated leading edge 32, but spaced from serrated leading edge 32 basically parallel thereto. Preferably, attachable comb 60 is arranged as a double-sided attachable comb 60. This may involve the attachable comb 60 being reversibly affixed to the blade assembly 20. As a consequence, in a state of reverse engagement, support bar 66 would associate with and cover toothed leading edge 32, with support bar 64 it would associate with and be arranged at a distance from the serrated leading edge 34 in a basically parallel fashion to it.
[0080] In the exemplary embodiment illustrated in Figures 3 to 11, the support structure 62, as defined by the support bar 64, 66 and the lateral grip bars 68, 70 are arranged as an adjacent closed support structure 62. However, in at least some embodiments, support structure 62 may be arranged as a profile or frame, with, for example, support bar 66 being omitted or, for example, interrupted. However, it is preferred that both support bars 64 and 66 connect to the side grip bar 68 and the side grip bar 70. This can have the advantage that a respective pushing force is applied by the user to the grip bars The sides 68, 70 may not significantly deform the attachable comb 60 and, as a consequence, tilt the blade assembly 22. A main direction of the thrust force that is normally applied by the user to the side grip bars 68, 70 is indicated in Figure 6 by the arrows 96 which are basically parallel to the lateral Y direction.
[0081] Preferably, the first lateral gripping bar 68 and the second lateral gripping bar 70 are provided with a respective indication that prompts the user to hold and engage the attachable comb 60. Typically, users themselves would tend to place the bars gripping bars 68, 70 of the attachable comb 60 in order to prevent them from touching the support bars (which extend laterally) to the support bars 64, 66, which could induce a load on the front edges 32, 34. mainly to the fact that applying a thrust force to the support bars 64, 66 would likely cause an excessive tilting force on the toothed front edges 32, 34 of the blade assembly 22. By way of example, each of the bars The side gripper 68, 70 may be provided with a corresponding depression or recess to indicate desired force application points.
[0082] The attachable comb 60 further comprises a plurality of guide teeth 72 extending from the support bar 64 of the support structure 62. The guide teeth 72 are basically oriented in a pattern or series defined in relation to the tooth 38 of the stationary blade 24. The guide teeth 72 basically extend in the X longitudinal direction or, more generally, in a plane which is defined by the X longitudinal direction and the Z vertical direction. On a top side or front side of the attachable comb 60 which normally abuts the skin in the engaged state when the lint-cutting apparatus 10 is in operation, the guide teeth 72 together define a skin contacting face 74, see also Figure 5 and Figure 10.
[0083] As can be seen further in Figure 5, the skin contact face 74 can define a plane which, on the one hand, is basically parallel to the lateral direction Y. On the other hand, the skin contact face 74 can be arranged at an angle α (alpha) with respect to the longitudinal direction X. As a consequence, the skin contacting face 74 can define an inclined longitudinal direction Xc of the attachable comb 60. In other words, the skin contacting face skin 74 and the top face or front face 36 of the blade assembly 22 are disposed at an angle α in the engaged state. On a front or rear side, guide teeth 72 define a receiving seat 76 which contacts top face 36 in an engaged state. In other words, the skin-contacting face 74 and the receiving seat 76 are also disposed at an angle α.
[0084] In order to secure the attachable comb 60 to the blade assembly 22, particularly to the relatively rigidly reinforced side end portions thereof, a plurality of snap-on elements 78, 80 are provided in the attachable comb 60. In general, the snap-in elements 78, 80 can be called snap-in elements. Particularly, respective pairs, preferably two pairs of proximal snapping elements 78 and distal snapping elements 80 can be provided. A first pair of snap-on elements 78, 80 may be associated with the first side grip bar 68. A second pair of snap-fit elements 78, 80 may be associated with the second side grip bar 70. However, preferably , the snap-on elements 78, 80 are not directly affixed to the respective lateral snap bars 68, 70. Instead, the snap-on elements 78 are disposed on a first proximal side 84 of the attachable comb 60 and can be fitted together. extend from the (proximal) support bar 66. Additionally, the push-fit elements 80 are disposed on a second distal side 86 of the attachable comb 60 and may extend from the (distal) support bar 64.
[0085] A defined general attachment direction (and removal direction) is indicated in Figure 5 by a double arrow 82. Preferably, the user holds the attachable comb 60 on the side grip bars 68, 70 and generally positions and orients the attachable comb 60 in a manner shown in Figure 5 and finally brings the blade assembly 22 in the engagement direction 82. This has the advantage that the user does not have to directly actuate the snap-in elements 78, 80. Rather, the snap-in elements 78, 80 are indirectly actuated and deflected when the separating comb 60 contacts and engages the blade assembly 22.
[0086] Further reference is made to Figures 7 to 11, showing the snap-fit elements 78, 80 in more detail. Then, in order to facilitate the engagement of the blade assembly 22 and the attachable comb 60, the proximal snapping elements 78 are provided with an insertion chute 88 and the distal snapping elements 80 are provided with an insertion chute. insertion 90. The insertion ramps 88, 90 define a tapered geometry that facilitates the fastening process. Adjacent to the ramp 88 of the proximal snap-fit elements 78, a retaining portion 92 is provided. Adjacent to the ramps 90 of the distal snap-fit elements 80, a retaining portion 94 is provided. As best seen in Figure 10, retaining portions 92, 94 may project inwardly from snap-fit elements 78, 80 and may define a nip or constriction.
[0087] In the engaged state, as illustrated in Figures 9 to 11, the retaining portions 92, 94 can retain and secure the attachable comb 60 in the desired position and orientation on the blade assembly 22. A tilt force that can be attributed to an engaging deflection of the snap-fit elements 78, 80 can basically act in the longitudinal direction X on the blade assembly 22. Furthermore, it is preferred that no tilting force or only a considerably small tilting force acts in the lateral direction Y on the blade assembly 22, even though the pushing force applied by the user on the lateral gripping bars 68, 70 is applied in the lateral direction Y, see arrows 96 in Figure 6.
[0088] Reference is again made to Figure 5. As in the embodiment of Figure 5, the proximal snap-fit elements 78 may be formed in respective engagement teeth 98 which may form teeth of the side end of the attachable comb 60. In providing the snap-fit elements 78 with the desired deflection capability, the latch teeth 98 can be interrupted or, more generally, provided with a weakening recess 100. Other than that, the latch teeth 98 can also contribute to the formation of the skin contacting face 74 and/or the receiving seat 76. A rear portion of the dog teeth 98 is indicated in Figure 5 by reference numeral 112. The rear portion 112 extends from the support bar distal 64. The posterior portion 112 of the dog teeth 98 is considerably stiff and rigid. In contrast, the proximal snap-fit elements 98 which form a front portion of the engagement teeth 98 are arranged in a considerably deflectable shape. The recess or interruption between the snap-fit elements 78 and the rear portion 112 on the engagement teeth 98 is indicated in Figures 5 and 7 by the reference numeral 100. As can be further seen in Figure 5, the guide teeth 72 and also the engaging teeth 98 may be provided with rounded tips 102 which are arranged to come into contact with the skin.
[0089] As can be further seen in the bottom view of Figure 6 and the bottom perspective view of Figure 7, the side guide ribs 104 can extend inwardly from the side grip bars 68, 70. Preferably , the lateral guide ribs 104 merely define a lateral position of the attachable comb 60 in the engaged state with respect to the blade assembly 22. However, the lateral guide ribs 104 are not provided with engaging features, locking features or tilting features. which are arranged to apply a force in the lateral direction Y on the blade assembly 22. It is preferred that the lateral guide ribs 104 are sufficiently spaced or offset from the lateral ends of the blade assembly 22 in the engaged state so that even one considerably increased level of a user pushing force (reference number 96 in Figure 6) does not directly influence or tilt the blade assembly 22 in the di. Y side reaction.
[0090] As best seen in Figure 7 and Figure 8, the snap-on elements 80 are arranged in a recess or slot 106 that is provided in the distal support bar 64. As a consequence, the snap-on elements 80 may be sufficiently deflectable so as to engage and retain the blade assembly 22 in cooperation with opposing snap-fit elements 78.
[0091] Further reference is made to Figures 8, 9 and 10. An engaging deflection of the proximal snap fit elements 78 is indicated in Figure 10 by a double curved arrow which is designated by reference numeral 114. A deflection of Engagement of the distal snap-in elements 80 is indicated in Figure 10 by a double curved arrow which is designated by reference numeral 116. As can be further seen, the snap-in elements 78 are secured to the proximal support bar 66 at a bottom (deviated from the skin) side of a plane which is defined by the longitudinal direction X and the lateral direction Y which is opposite and a top or front side where snap-on elements 80 are attached to the distal support bar 64 In other words, the respective deflection zones or joint portions 118, 120 of the snap-fit elements 78, 80 can be arranged on opposite sides with respect to the XY plane mentioned above.
[0092] The joint portion 118 may be formed by a transition between the proximal snap-fit elements 78 and the proximal support bar 66. The joint portion 120 may be arranged in a transition between the distal snap-fit elements 80 and the distal support bar 64. The joint portions 118, 120 may be called the deflection zones. Of course, the joint portions 118, 120 do not necessarily have to be explicitly formed and shaped in the respective transition between the snap-fit elements 78, 80 and the support bars 64, 66. snap fit 78, 80, or more particularly the plastic material from which the attachable comb 60 is made, can provide the necessary deflection functionality.
[0093] Of course, the attachable comb 80 can be reversibly and repeatedly attached to and removed from the blade assembly 22 of the hair-cutting apparatus 10. Thus, in the reverse engaged state, the proximal snap-fit elements 78 can engage the second leading edge 34 and distal snapping elements 80 can engage first leading edge 32.
[0094] Although the invention has been illustrated and described in detail in the drawings and the aforementioned description, such illustration and description are to be considered illustrative or exemplary, and not restrictive; the invention is not limited to the disclosed embodiments. Other variations to the disclosed embodiments may be understood and made by those skilled in the art in practicing the claimed invention, from a study of the appended claims.
[0095] In the claims, the expression "comprising" does not exclude other elements or other steps, and the indefinite article "a" or "an" does not exclude a plurality. A single element or another unit can perform the functions of several items mentioned in the claims.
[0096] No reference signs in the claims are to be interpreted as limiting the scope of the invention.

权利要求:
Claims (15)
[0001]
1. REMOVABLE ATTACHABLE COMB (60) for a pivotally supported blade assembly (22) of a cutting head (20) of a hair-cutting apparatus (10), said attachable comb (60) comprising : - a support structure (62) comprising, at respective opposite side ends thereof, a first gripping bar (68) and a second gripping bar (70) which are arranged to be held by a user, a first bar and laterally extending support bar (64) disposed on a first proximal side (86) of the attachable comb (60) and a second distal support bar (66) disposed on a second distal side (84) of the attachable comb ( 60), wherein both support bars (64, 66) are disposed between the first side grip bar (68) and the second side grip bar (70); - a plurality of guide teeth (72) defining a front skin-contacting face (74); the attachable comb being characterized by: - at least two pairs of snap-on elements (78, 80), particularly a plurality of snap-on hooks; the snap-in elements (78, 80) being spaced apart from the first side gripping bar (68) and the second side gripping bar (70); wherein at least two of the snap-in elements (78, 80) are configured as proximal snap-in elements (78) which are disposed on a first proximal side (84); wherein at least two of the snap-in elements (78, 80) are configured as distal snap-in elements (80) which are disposed on the second distal side (86) which is opposite the first side (84); and wherein the at least two proximal snap engaging elements (78) and the at least two distal snap engaging elements (80) are arranged to mutually secure the blade assembly (22) together to secure the attachable comb ( 60) to the cutting head (20).
[0002]
2. ATTACHABLE COMB (60), according to claim 1, characterized in that the first lateral gripping bar (68) and the second lateral gripping bar (70) are provided with a respective indication that prompts the user to hold and engage the comb attachable (60) and/or with a corresponding depression or recess to indicate the points of application of desired force.
[0003]
3. ATTACHABLE COMB (60) according to claim 1 or 2, characterized in that at least one of the proximal snap-in element (78) or the distal snap-in element (80), preferably each element coupling (78, 80), is secured to the support structure (62) in a deflectable and deformable manner when the attachable comb (60) approaches the blade assembly (22) in a direction of engagement and engages the assembly. of blades (22).
[0004]
4. ATTACHABLE COMB (60) according to any one of claims 1 to 3, characterized in that at least one of the proximal snap-in element (78) and the distal snap-in element (80), preferably, each snap-on element (78, 80), is deformed in a self-deflecting manner when the attachable comb (60) is attached to the blade assembly (22), and is deformed in a self-deflective manner when the attachable comb (60) is removed from the blade assembly (22).
[0005]
5. ATTACHABLE COMB (60), according to any one of claims 1 to 4, characterized in that the snap-in elements (78, 80), when engaging the set of blades (22) are arranged to induce the attachable comb ( 60) in a defined position and orientation with respect to the set of blades (22) and/or to retain the attachable comb (60) in a manner of force-fitting and positive locking thereon.
[0006]
6. ATTACHABLE COMB (60) according to any one of claims 1 to 5, characterized in that the snap-on elements (78, 80) are arranged distinct from or remote from the first lateral gripping bar (68) and the second gripping bar. lateral gripping (70), whereby at least two snap-in elements (78) are, in an engaged state, associated with a toothed leading edge (32, 34) of the blade assembly (22).
[0007]
The ATTACHABLE COMB (60) as claimed in claim 6, characterized in that the at least two snap-in elements (78) comprise a retaining portion (92), particularly a retaining protrusion, which engages in the engaged state. , a stationary blade of the set of blades (22) in the vicinity of the serrated anterior edge (32, 34).
[0008]
ATTACHABLE COMB (60) according to claim 6 or 7, characterized in that the at least two proximal snap engagement elements (78) are, in the engaged state, associated with a first toothed leading edge (32) of the set of blades (22), the at least two distal snapping elements (80) being, in the engaged state, associated with a second toothed leading edge (34) of the blade assembly (22), and the at least two distal pressure engaging elements (80) comprise a retaining portion (94), particularly a retaining protrusion, which engages, in the engaged state, the stationary blade of the blade assembly (22) in proximity to the second toothed front edge (34).
[0009]
An ATTACHABLE COMB (60) according to any one of claims 1 to 8, characterized in that the guide teeth further define a receiving seat (76) of the blade assembly (22) which faces away from the front face. of skin contact (74).
[0010]
ATTACHABLE COMB (60) according to any one of claims 1 to 9, characterized in that at least two snap-in elements (78) are formed in a respective engageable tooth (98) which is provided with a weakening recess (100).
[0011]
11. ATTACHABLE COMB (60) according to any one of claims 1 to 10, characterized in that at least two distal snap-on elements (80) are arranged as a snap-fit hook on a rear support bar (64 ) of the reception structure (62).
[0012]
The ATTACHABLE COMB (60) according to any one of claims 1 to 11, characterized in that the receiving structure (62) is additionally arranged to cover, in the engaged state, a second toothed leading edge (34) of the blade assembly ( 22) which is disposed opposite a first serrated leading edge (32) of the blade assembly (22).
[0013]
13. CUTTING HEAD (20), for a hair trimmer (10), particularly an electrically operated personal care appliance, the cutting head (20) comprising: - a set of blades (22) comprising a stationary blade (24) and a cutting blade (26), the stationary blade (24) and the cutting blade (26) comprising at least one toothed leading edge (34, 36) defined together by the respective ones. teeth (38, 40) of the stationary blade (24) and the cutting blade (26), with the teeth (38, 40) of the stationary blade (24) and the cutting blade (26) extending basically in one longitudinal direction (X), whereby the stationary blade (24) additionally comprises a front face (36), particularly on the teeth thereof, the front face (36) being disposed on the face of a user's skin, when working; the cutting head being characterized in that it further comprises: - an attachable comb (60) as defined in any one of the preceding claims; the attachable comb (60) being releasably engaged with the blade assembly (22) and arranged to position the blade assembly (22) at a defined distance and orientation relative to a user's skin, when in operation.
[0014]
CUTTING HEAD (20) according to claim 13, characterized in that it additionally comprises a rotating mechanism (42) that couples the set of blades (22) and a housing portion (12), by the attachable comb (60) be arranged, in the engaged state, to be hinged together with the blade assembly (22) with respect to the housing portion (12).
[0015]
15. CUTTING HEAD (20) according to claim 13 or 14, characterized in that the set of blades (22) is releasably attached to a housing portion (12), and wherein the at least two engaging elements by proximal pressure (78) and the at least two distal pressure engagement elements (80) are arranged so that a release force required for removal of the attachable comb (60) from the blade assembly (22) is less than the release force required to remove the blade assembly (22) from the housing portion (12).

类似技术:

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同族专利:

公开号 | 公开日

BR112016028638A2|2017-08-22|

CN105922302B|2020-08-18|

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US20170361476A1|2017-12-21|

WO2016134920A1|2016-09-01|

CN105922302A|2016-09-07|

EP3142834A1|2017-03-22|

RU2016147924A|2018-06-08|

RU2682358C2|2019-03-19|

JP2017509365A|2017-04-06|

US10913170B2|2021-02-09|

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法律状态:
2020-02-11| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

2021-04-13| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

2021-06-22| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 02/02/2016, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

EP15156723.7|2015-02-26|

EP15156723|2015-02-26|

PCT/EP2016/052101|WO2016134920A1|2015-02-26|2016-02-02|Attachment comb and hair cutting appliance|

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