巴西专利BR112016028997B1 CUTTING HEAD AND HAIR CUTTING APPLIANCE

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专利摘要:
shaving head and hair clipper. the present disclosure relates to a hair clipper (10), particularly an electrically operated body hair trimmer (10), and a shaving head (18) for a hair clipper (10) , the cutting head (18) comprising a set of blades (20) comprising a stationary blade (36) and a cutting blade (38), the stationary blade (36) and the cutting blade (38) being ) comprise at least one toothed leading edge (22, 24) defined together by the respective teeth (62, 64) of the stationary blade (36) and the cutting blade (38), the teeth (62, 64) of the blade stationary blade (36) and the cutting blade (38) extend basically in a longitudinal direction (x), a skin protector (76) comprises a plurality of guide tabs (78) which are aligned with the teeth (62) of the stationary blade (36), the stationary blade (36) additionally comprising a front face (58), particularly on the teeth (62) of the same, the front face (58) being disposed facing a user's skin when in operation, the cutting blade (38) being at least partially disposed on a rear face (60) of the stationary blade (36). ) facing away from the front face (58), particularly at the teeth (62) of the stationary blade (36), the guide tabs (78) of the skin guard (76) being disposed adjacent the longitudinal ends (66) ) of the teeth (62) of the stationary blade (36) in a longitudinally displaced position, the skin protector (76) defining a front face (92) and the front face (92) of the skin protector (76) being is at least partially offset rearwardly from the front face (58) of the stationary blade (36).
公开号:BR112016028997B1
申请号:R112016028997-8
申请日:2015-09-15
公开日:2021-08-31
发明作者:Bernhard Schratter；Michael Janny；Wolfgang Johannes Obermann
申请人:Koninklijke Philips N.V；
IPC主号:

专利说明:

FIELD OF THE INVENTION
[001] The present invention relates to a cutting head for an apparatus for cutting hair, particularly an electrically operated body hair trimming apparatus, wherein the cutting head comprises a set of blades including a stationary blade and a cutting blade, wherein the stationary blade and the cutting blade comprise at least one toothed leading edge defined jointly by the respective teeth of the stationary blade and the cutting blade, and wherein the cutting blade can be reciprocally moved with respect to the blade stationary to cut hair. The present disclosure further relates to an apparatus for trimming hairs, particularly an electrically operated body hair trimming apparatus, which is provided with a respective cutting head. BACKGROUND OF THE INVENTION
[002] Appliances for clipping hair are generally known and may include hair clippers, hair clippers and appliances for shaving and depilation. Electric hair trimming devices can be powered by electricity from a power source and/or by batteries. Hair trimming devices are generally used to trim facial hair and hair to enable an individual to look well groomed. For this purpose, single-purpose hair clippers are well known, for example razors and hair clippers.
[003] In this context, US patent No. 2014/0026422 A1 discloses a double blade hair trimming device comprising a blade body and a blade head. A drive device is arranged on the blade body. The blade head comprises a thick blade toothed edge and a thin blade toothed edge. Furthermore, the blade head comprises a fixed blade and a movable blade. The fixed blade and the movable blade are each provided with tooth sections on opposite edges thereof. The movable blade moves reciprocally corresponding to the fixed blade for hair trimming. The thick blade toothed edge should be used for coarse hair cutting/trimming operations. The fine blade toothed edge should be used for fine hair cutting/trimming operations.
[004] CH patent No. 206 252 A discloses a shaving or depilation head for a razor or dry epilator, which comprises an external stationary blade and an internal mobile blade, which cooperate to cut hair, the blade being The outer blade is connected to a protective comb, the outer blade and the protective comb together defining a tubular body, the outer blade and the protective comb comprising respective teeth, with a protective comb height being equal to a height of the tooth of the stationary blade.
[005] US Patent No. 2,262,388 A discloses a shaving or depilation head comprising a stationary cutter with slits, a movable cutter slidable in relation to said stationary cutter, a shield member with slits on each side of said cutter stationary, wherein slots of said bulkhead members are aligned with slots of said stationary cutter, a spacer member positioned intermediate each bulkhead element and said stationary cutter, and connecting elements, each engaged with said stationary cutter, to said bulkhead members and said spacer members and joining them into a single unit.
[006] However, in recent years, an increasing demand for so-called body hair trimming devices has been observed. Body hair trimming devices or body hair trimming devices may be called special purpose hair trimming devices which can be used to remove, trim or cut body hair in regions of the body that do not include the neck, the user's face or head. In other words, body hair trimmers can also be called shaving and/or body hair trimmers. Body hair trimmers should therefore be particularly suitable for hair trimming operations on the wearer's sensitive skin areas, eg on the genital areas (intimate haircut), on hard-to-reach areas etc. Other applications of body hair trimmers can be leg and/or armpit waxing.
[007] Although it is known that shaving or waxing appliances and/or hair clippers can generally be used for these applications, it has been observed that for various reasons many users prefer to use separate body hair clippers for hair trimming applications. body hair mentioned above. This may, on the other hand, have hygiene reasons and health reasons. Furthermore, it has been observed that the wearer's skin in various regions of the body is particularly sensitive to treatments with conventional razors and hair removal machines and trimmers. Therefore, the use of commercially available shaving or shaving appliances for hair trimming can cause significant irritation to the skin in these sensitive areas.
[008] It was also observed that it can be difficult to guide and/or correctly align a device for cutting hair in relation to the skin region to be treated when the skin region is, in fact, difficult for the user to reach. Misalignment of a hair trimmer, particularly a shaving head thereof, with respect to the skin can additionally cause skin irritations or even cuts to the skin.
[009] Consequently, there is still room for improvement in body hair trimmers. SUMMARY OF THE INVENTION
[0010] It is therefore an object of the present invention to provide a cutting head for an apparatus for hair trimming, particularly for an electrically operated body hair trimmer, which can address some of the above mentioned drawbacks and issues. In particular, it is an object of the present disclosure to provide a cutting head which is particularly suitable for whole body hair trimming applications, more particularly for hair trimming and/or hair removal on sensitive areas of the skin. It would be additionally advantageous to provide a shaving head that reduces the risk of skin irritation when cutting hair from sensitive areas of the skin. Preferably, the risk of skin damage and/or even cuts to the skin can be significantly reduced. It is further preferred that the cutting head can be configured for full-body hair trimming applications in a low-cost way, without adversely affecting overall cutting performance. It is another object of the present disclosure to provide a hair trimming apparatus, particularly a body hair trimming apparatus, which is provided with a respective cutting head.
[0011] In a first aspect of the present disclosure, a cutting head for an apparatus for trimming hair, particularly for an electrically operated body hair trimmer apparatus, is presented, wherein the cutting head comprises: - an assembly 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 basically extend in a longitudinal direction, - a skin protector comprising a plurality of guide tabs which is aligned with the teeth of the stationary blade,
[0012] where the stationary blade additionally comprises a front face, particularly on the teeth thereof, with the front face facing the skin of a user, during operation,
[0013] wherein the cutting blade is at least partially disposed on a rear face of the stationary blade facing the opposite side of the front face, particularly, on the teeth of the stationary blade,
[0014] where the cutting blade can be reciprocally moved relative to the stationary blade to cut hair,
[0015] wherein the skin protector guide tabs are disposed adjacent to the longitudinal tips of the teeth of the stationary blade in a longitudinally offset position,
[0016] where the skin protector defines a front face, particularly on the guide flaps thereof, with the front face being arranged facing the skin of a user, during operation and
[0017] being that the front face of the skin shield is at least partially displaced backwards from the front face of the stationary blade and
[0018] wherein the skin protector comprises at least one snap-fitting element that is adapted to a corresponding coupling portion of a housing region of the cutting head.
[0019] The above aspect is based on the idea that the skin protector guide tabs can act as "break" when the hair trimmer is moved along the skin in an attempt to cut and/or trim by the. This includes that the skin protector may actually come in contact with the portion of skin to be treated to prepare the skin for the next cutting operation. Normally, when the blade assembly is moved along the skin, so-called protrusions of skin may form which are likely to come into contact with the cutting edges of the blade assembly. The more sensitive and soft the skin, the greater the risk of bulging or lifting of the skin. The arrangement of the skin protector guide tabs can therefore be used to smooth the skin so as to prevent the formation of bumps and/or bumps in the skin. Consequently, the risk of skin irritations can be significantly reduced.
[0020] In addition, the skin protector can act as a guide for the hair to be cut. In general, the skin protector guide tabs can be considered longitudinal extensions of the stationary blade teeth. As the guide tabs are aligned with the teeth of the stationary blade, the respective slots or spaces between the guide tabs are also aligned with the respective slots between the teeth of the stationary blade. Consequently, hairs can be guided to the stationary blade and cut in a cutting operation similar to scissors cutting after reciprocating the movement of the cutting blade in relation to the stationary blade.
[0021] As indicated above, the front face of the skin shield is at least partially displaced backwards from the front face of the stationary blade. Consequently, the skin protector should not be considered an attachable comb of conventional spacing that is normally used to trim hair to a desired (residual) length. Even with the skin protector attached to the shaving head, it is still desirable in many applications to remove or cut hair completely (preferred residual length 0.0 mm or nearly 0.0 mm). Thus, the skin shield does not significantly affect the performance of shaving or hair removal of the shaving head, as the front face of the skin shield that actually comes in contact with the skin to be prepared is displaced backwards from the face front of the stationary blade that actually makes contact with the skin during the cutting operation as such. In other words, the blade assembly, particularly the stationary blade thereof, protrudes at least slightly beyond the skin shield, particularly on the front face thereof, towards the skin, when in operation.
[0022] A shaving head which is provided with a corresponding skin protector is particularly suitable for trimming and/or trimming operations of whole body hair. The shaving head can be used on sensitive areas of the skin such as genital areas, armpit areas etc. The shaving head is particularly suitable for intimate hair trimming, particularly intimate hair removal, underarm hair removal, leg hair removal etc. In general, the shaving head that is fitted with a skin protector can be used on hard-to-reach areas of skin that are practically unreachable and/or invisible to the user.
[0023] In general, the front face of the skin shield and the front face of the stationary blade can be displaced from each other in a parallel manner. However, a strictly parallel shift is not necessarily required. It is known, in this regard, that with reference to manufacturing tolerances, required rake angles and other factors influencing at least slight angular deviations between the front face of the skin protector and the front face of the stationary blade can occur. In addition, the front face of the skin shield and the front face of the stationary blade can be basically parallel to a plane that is defined by a total longitudinal X direction and a total lateral Y direction of an X-YZ reference coordinate system of the cutting head. However, this is not a necessary prerequisite. Furthermore, the front face of the skin shield and/or the front face of the stationary blade preferably comprise a substantially flat shape. However, this is not a necessary basic prerequisite.
[0024] For example, again, with reference to rake angles, manufacturing problems etc., at least one of the front face of the skin protector and the front face of the stationary blade may be at least partially or sectionally curved. However, each of the front face of the skin shield and the front face of the stationary blade may comprise at least one substantially flat shape that is substantially parallel to a plane defined by the longitudinal direction X and the lateral direction Z. The front face of the blade Stationary can be at least slightly tilted backwards with respect to a plane defined by the X longitudinal direction and the Z lateral direction, at least on the teeth of the stationary blade. Additionally or alternatively, at least partially on the guide flaps, the front face of the skin protector may be slightly tilted backwards with respect to a plane defined by the X longitudinal direction and the Z lateral direction.
[0025] The skin shield can generally be called the skin shield shield. The skin protector can be arranged to soften, condition and/or flatten the skin to be cut. The skin protector guide tabs can be generically referred to as guide teeth, shield ribs, etc.
[0026] It is worth noting in this connection that the isolated skin shield may form an independent aspect separate from the present disclosure. The skin guard can be attached to a shaving head and provide the shaving head with improved skin protection characteristics. Consequently, a shaving head which is provided with a respective skin protector is particularly suitable for hair trimming and/or shaving or waxing operations on sensitive regions of the skin.
[0027] Thanks to at least one snap-on element, the attachment or removal of the skin protector can be additionally facilitated. It can also be conceived that the cutting head can be provided with more than one skin protector, the respective skin protectors may differ in the number and shape of their guide flaps, for example.
[0028] A body hair trimmer within the context of the present disclosure is preferably a device that does not implement a screen shaving or depilation section adjacent to the blade assembly comprising the stationary blade and the cutting blade. In other words, razors or epilators that implement a combination of a set of central trimming blades and two shaving or screen shaving sections, which are suitable for use on facial hair, are not very suitable for trimming body hair, particularly, full body hair trimming applications. Therefore, at least in conjunction with some modalities, the body hair trimmer apparatus may also be called a non-screen type full body hair trimmer.
[0029] In one embodiment, the skin protector comprises at least one row of guide tabs extending from a frame body, wherein the guide tabs of the row are alternated with spaced apart slits that are aligned with the respective teeth spaces arranged between the teeth of the stationary blade. It is additionally preferred that the thickness of the guide tabs in the Z lateral direction is adapted to the thickness of the teeth in the Z lateral direction. As the guide tabs are aligned with the respective teeth, the gaps between the guide tabs and the gaps between the teeth can also be aligned with each other. Consequently, the hairs can enter the spacing gaps between the guide tabs and be guided into the spaces between the teeth of the stationary blade with the movement of the cutting head through the body hair.
[0030] In another modality of the cutter head, the number of teeth of the stationary blade is equal to or greater than the number of guide tabs on the skin protector, being a ratio between the number of teeth of the stationary blade and the number of guide tabs on the skin protector is preferably an integer. In other words, the ratio can be in whole numbers, eg 1:1, 2:1, 3:1, 4:1 etc.
[0031] As a consequence, not necessarily each tooth of the stationary blade needs to be assigned a respective flap of the skin protector. However, in each case, each guide tab can be aligned with a respective tooth. If, for example, the above ratio is 2:1, the spaces between the skin protector guide tabs can be assigned and aligned with two spacing slits and a tooth disposed between them on the stationary blade.
[0032] In yet another exemplary modality, the set of blades is a set of double-sided blades, with the stationary blade and the cutting blade defining a first serrated leading edge and a second serrated leading edge that faces to the side opposite the first leading edge, the first serrated leading edge and the second serrated leading edge being longitudinally spaced apart, and the skin protector comprising a first arrangement of guide tabs associated with the first serrated leading edge and a second arrangement of guide tabs associated with the second toothed leading edge.
[0033] The double-sided arrangement can have the advantage that more regions of the body can be reached with the cutting head when the cutting head is attached to a hair cutting apparatus comprising a basically elongated but at least slightly elongated housing curved. In addition, the user can push and drag the appliance for hair trimming, in any case a toothed leading edge of the two toothed leading edges can cut hairs. Consequently, both the push phase and the drag phase of a course can be used to cut hair, reducing idle motion. The cutting performance can thus be increased.
[0034] It may be additionally preferred in this context that the teeth of the stationary blade on the first toothed leading edge and the teeth of the stationary blade of the second toothed leading edge are laterally displaced from each other, whereby the first arrangement of the guide flaps and the second arrangement of the guide tabs are displaced from each other in a similar way.
[0035] In other words, the cutting head, particularly the blade assembly thereof, more particularly the stationary blade, can be configured in a basically non-symmetrical way. At least a slight offset between the first serrated leading edge and the second serrated leading edge in the Z lateral direction may be present. However, a respective “pitch” of the teeth of the first serrated leading edge and the second serrated leading edge may be constant. By way of example, in the Z lateral direction, the teeth of the first leading edge of the stationary blade can be aligned with teeth spaces between teeth of the second toothed leading edge of the stationary blade. It is therefore essential that the skin protector guide tabs also be correspondingly adapted to match the position of the teeth on the first serrated leading edge and the second serrated leading edge.
[0036] In yet another exemplary embodiment, the skin protector is arranged as a skin protector accessory that is releasably attachable to the cutting head, with the skin protector being preferably an integrally formed part made of material resilient, particularly of plastic material. By way of example, the stationary blade and the cutting blade may be at least partially formed of metallic material, particularly of laminar metallic material. As the skin protector is not directly involved in the cutting operation, softer materials such as plastic material can be used. This can have another advantage that the thermal conductivity of the skin shield is relatively low. Consequently, the heat that can be generated in the course of the cutting operation between the cutting blade and the stationary blade basically cannot considerably heat the skin protector.
[0037] In another exemplary embodiment, a set of skin protectors is provided that are releasably attachable to the cutting head and that differ in the number and shape of their guide flaps.
[0038] In yet another exemplary embodiment, the skin shield and the cutting head comprise at least one positioning element and at least one corresponding engagement element that are configured to define an engagement position of the skin shield on the cutting head , so that reverse engagement of the skin protector can be avoided. This can be particularly beneficial when using a blade assembly that comprises more than one serrated leading edge. As proper alignment of the skin shield guide tabs and the stationary blade teeth is important for cutting performance and to prevent skin irritation, a fail-safe skin shield assembly is particularly beneficial. One of the at least one positioning element and the at least one corresponding engaging element can be associated with the skin protector and the other can be associated with a housing region of the cutter head. In other words, engagement features can be present to ensure that engagement or back-to-front attachment of the skin guard to the cutting head is basically impossible.
[0039] In yet another exemplary embodiment, the set of blades and a cutting head housing region comprise at least one positioning element and at least one corresponding engagement element that are configured to define an engagement position of the skin protector on the cutting head, so that reverse engagement of the skin guard can be avoided.
[0040] In yet another beneficial modality, the skin protector and the set of blades comprise at least one positioning element and at least one corresponding engagement element that are configured to define an engagement position of the skin protector with respect to the assembly of blades so that reverse engagement of the skin protector can be avoided.
[0041] As, in essence, both the blade assembly and the skin protector have to be correctly engaged in the cutting head, it should be considered that both coupling pairs, the skin protector and the cutting head, as well how the skin protector and blade assembly are fixed in the desired orientation. The skin shield and blade assembly can be properly aligned and/or mutually oriented in a direct or intermediate manner. In the final assembly state, the respective toothed leading edge and the row of guide tabs assigned to it must adopt the position originally desired and defined on the cutting head.
[0042] In yet another modality of the cutter head, the skin shield guide tabs comprise a longitudinal extension lt, particularly on the front face of the skin shield, which is less than 5.0 (millimeters), preferably, the longitudinal extension lt is about 3.0mm. These values can positively influence the cutting performance and skin protection capability of the cutting head.
[0043] In yet another embodiment, the front face of the skin shield is displaced backwards from the front face of the stationary blade by a displacement dimension lo in the range between about 0.0 mm and about 0.5 mm, preferably, in the range between about 0.35 mm and about 0.5 mm. The above range can exclude the 0.0mm value. As a result, the stationary blade can be at least slightly exposed beyond the front face of the skin shield. Consequently, overall cutting performance can be maintained, while skin irritations can be further reduced.
[0044] In yet another exemplary modality of the cutter head, the skin protector guide tabs comprise an end tip at its longitudinal end, with the end tip connecting the front face and a respective slanted end surface of the tabs of guide tabs, an angle of inclination α (alpha) between the front face and the surface of the inclined end of the guide tabs is in the range between about 30° and 60° (degrees). Preferably, the angle of inclination α is in the range between about 40° and 50°. More preferably, the tilt angle α is about 45°. In general, the sloped end surface can be sloped inward. In other words, the total longitudinal extension of the skin shield on the front portion of the skin shield may be greater than the total longitudinal extension of the skin shield on a front portion of the skin shield. In general, each of the guide tabs can be triangular or wedge-shaped. The row of guide tabs on the skin protector can define a respective full slanted end surface. Preferably, the end tips of the guide tabs are rounded. In addition, the outer edges of the skin protector, particularly the guide tabs, which may come into contact with the user's skin, may be rounded.
[0045] In yet another exemplary embodiment, the skin protector comprises a closed structure similar to a loop formed by a body of the frame, the closed structure surrounding a blade opening, with the blade assembly being disposed in the engaged state in the blade opening, the frame body comprising two opposing base tabs, which extend substantially laterally and vertically at the longitudinal ends, and two opposing lateral tabs, which extend substantially laterally and vertically at the lateral ends, and wherein at least one of the base tabs or the side tabs comprises an engagement alignment feature, particularly a recess or a protrusion. Preferably, the hitch alignment feature is not present on the opposing base tab or side tab. Consequently, misalignment of the skin protector in the course of the engagement operation can be avoided.
[0046] The above modality can also be developed in the sense that the side tabs are coupled to basically U-shaped side arm portions arranged adjacent to the lateral ends of the set of blades. The side arm portions can be U-shaped when viewed in a plane parallel to the front face of the blade assembly. The base tabs may comprise a snap-in feature and include at least one engagement element for engaging a coupling-engaging element in a housing region of the cutter head. Alternatively or additionally, the side tabs may comprise a snap-in feature and include at least one engagement element for engaging a coupling-engaging element in a housing region of the cutter head. In general, the skin protector can have an overall appearance that is basically similar to an attachable comb. However, attachable combs typically move the blade assembly away from the skin to allow you to cut the hair to a desired residual length. In contrast, the skin shield is shaped so that the array of blades, particularly the stationary blade thereof, is at least slightly elevated relative to the skin shield. Consequently, the skin protector basically does not influence the cut length.
[0047] According to another aspect of the present disclosure, an apparatus for cutting hairs, particularly an electrically operated body hair trimmer apparatus is disclosed, wherein the hair cutting apparatus comprises a cutting head and a guard of the skin according to at least some of the modalities disclosed herein. In general, the hair trimmer can be considered a hair trimmer equipped with an electric motor. Consequently, a motor can be provided to drive the set of blades. Generally, the cutting blade, which may also be called the movable cutting blade, is movable relative to the stationary blade. The cutting blade can be driven relative to the stationary blade, particularly in an oscillating or reciprocating manner. In general, the hair-cutting apparatus may comprise an elongated housing which may be at least slightly curved, the housing may further comprise a first end and a second end which is opposite the first end. At the first end of the housing, the cutting head can be disposed to which the skin shield can be attached. The second end of the housing of the hair trimmer may also be called the cable end. The hair trimmer may also be called a full-body hair trimmer. BRIEF DESCRIPTION OF THE DRAWINGS
[0048] These and other aspects of the invention will become evident and will be elucidated with reference to the embodiments described below. In the following drawings:
[0049] Figure 1 shows a schematic perspective view of an exemplary embodiment of an apparatus for electric hair cutting, particularly an electrically operated body hair trimmer;
[0050] Figure 2 shows a perspective view of a set of blades of an apparatus for cutting hair that can be driven by a drive mechanism;
[0051] Figure 3 shows a longitudinal side view of the set of blades according to Figure 2;
[0052] Figure 4 shows a side view in partial cross section of a set of blades according to Figures 2 and 3 along the line IV-IV in Figure 3;
[0053] Figure 5 shows a perspective view of a stationary blade and a cutting blade of the set of blades, with the stationary blade and the cutting blade shown in an exploded state;
[0054] Figure 6 shows a perspective view of an embodiment of a cutting head comprising a set of blades and a skin protector attached to the cutting head, a housing portion being removed for illustrative purposes;
[0055] Figure 7 is a partial front view of the cutting blade arrangement illustrated in Figure 6;
[0056] Figure 8 is a side view in partial cross section of the cutting head illustrated in Figures 6 and 7 along the line VIII-VIII in Figure 7;
[0057] Figure 9 is a partial cross-sectional side view of the cutting head illustrated in Figures 6 and 7 along line IX-IX in Figure 7;
[0058] Figure 10 is a detailed partial longitudinal side view of a skin protector that is coupled to a set of blades;
[0059] Figure 11 is a partial perspective view of one embodiment of a cutting head and a skin protector that can be attached to the cutting head, the skin protector being shown in Figure 11 in a removed and removed state.
[0060] Figure 12 is another perspective view of the cutting head arrangement shown in Figure 11 in an alternative orientation, with the skin protector shown in the attached state and a partial sectional view of the cutting head being illustrated. DETAILED DESCRIPTION OF MODALITIES
[0061] Figure 1 schematically illustrates, in a simplified perspective view, an exemplary embodiment of an apparatus for cutting hair 10, particularly a hair trimmer apparatus of the body 10. As indicated above, the apparatus for cutting hair 10 it may also be called a whole body hair trimmer. The hair trimming apparatus 10 is therefore not intended for cutting facial hair and/or hair. Rather, the hair trimming apparatus 10 is particularly suitable for trimming hair in sensitive regions of the body such as intimate regions, genital regions, underarm regions etc.
[0062] The hair-cutting apparatus 10 comprises an elongated housing 12. The housing 12 comprises a first end and a second end which is opposite the first end. The second end of housing 12 may also be called the cable end. In general, housing 12 may comprise a portion of cable 14 on which a user can secure housing 12. In general, housing 12 may be formed in a tubular or shaft-like manner. In addition, housing 12 may be at least slightly curved or banana-shaped in its elongated longitudinal extent.
[0063] Housing 12 may further comprise controls 16, eg on/off buttons etc. At the first end of housing 12, a cutter head 18 can be provided. The first end of housing 12 may therefore also be called the neck portion. As indicated in Figure 1, the cutter head 18 may comprise a blade assembly 20. The blade assembly 20 may define at least one serrated leading edge 22, 24. In Figure 1, the blade assembly 20 defines a first leading edge toothed 22 and a second toothed leading edge 24 that faces away from the first toothed leading edge 22.
[0064] For the purpose of haircutting, a user may hold the housing 12 of the haircutting apparatus 10 on the handle portion 14 and move the cutting head 18 through the hair in a direction of movement indicated by reference numeral 28 An ideal direction of movement 28 may generally be perpendicular to a lateral direction (indicated by reference numeral 30) which may also be called the direction of cutting movement of the blade assembly 20. section 18 is indicated in Figure 1 by reference numeral 32. In addition, a dashed line indicated by reference numeral 34 illustrates a clamping interface 34 where the cutting head 18 can be secured to the housing 12. In some embodiments, the Cutting head 18 can be releasably attached to housing 12. However, in alternative embodiments, cutting head 18 can be fixedly and permanently attached to housing 12. Consequently, in these modes ages, no clamping interfaces 34 need to be provided.
[0065] In Figure 1, a main direction of the longitudinal/elongated extension of the housing 12 is indicated by the reference numeral 26. The housing 12 may be at least slightly inclined and/or curved. As a consequence, the cutter head 18 and the blade assembly 20 can be at least slightly inclined with respect to a plane that is perpendicular to the direction of elongation 26. Whereas the blade assembly 20 can define a toothed first leading edge 22 and at a second serrated leading edge 24, the user or operator of the hair trimming apparatus 10 may then operate the hair trimming apparatus 10 in at least two distinct operating orientations. This can further make it possible to reach remote and hard-to-reach areas of the skin.
[0066] The housing 12 may also house a drive mechanism for the set of blades 20. The drive mechanism (not shown in Figure 1) may comprise an electric motor and a power transmission unit that can couple the motor and the blade assembly 20. Additionally, an internal control unit can be provided. The hair trimming apparatus 10 can be battery powered and/or powered by an electrical power source. Consequently, in at least some embodiments, housing 12 can still house a battery unit. Preferably, the hair trimming apparatus 10 is designed in a waterproof manner. This may include that the user can operate the hair trimmer 10 in a primarily wet environment, for example, in a bathtub or shower.
[0067] For ease of reference, coordinate systems are indicated on several drawings in this document. As an example, a Cartesian coordinate system (clockwise) XYZ is shown in Figure 2. 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 revelation. A coordinate system Y 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. A Z axis of the respective coordinate system extends in a lateral (or transverse) direction generally associated with width, for the purposes of this disclosure. Of course, an association of the X-Y-Z coordinate system with features and/or modalities 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 by confronting alternative modalities, respective figures and illustrations which include different orientations. It is also worth mentioning 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 18 which includes the blade assembly 20.
[0068] In this regard, further reference is made to Figures 2 to 5. Figure 2 is a top perspective view of a set of blades 20 that can be implemented in the cutter head 18 illustrated in Figure 1. The set of blades 20 comprises a stationary blade 36 and a cutting blade 38 which can be moved relative to each other in a cutting direction 30 which is basically parallel to the lateral direction Z for cutting hair. Stationary blade 36 and cutter blade 38 are illustrated in the Figure in more detail in an exploded state.
Reference is again made to Figures 2 and 3. The blade assembly 20 further comprises a frame 40 which can form a base for the stationary blade 36. The receiving frame 40 can comprise a support curvature or a support arm. support 44 which can be coupled to the housing region 32 of the cutter head 18, see also Figure 1 and Figure 11. The support arm 44 can, on the one hand, receive the stationary blade 35, directly or intermediately. Stationary blade 36 can be arranged to be secured to support arm 44. Consequently, no relative movement between support arm 44 and stationary blade 36 is desired during operation of blade assembly 20.
[0070] As best seen from Figures 3 and 4, the cutting blade 38 can be disposed on the receiving frame 40. However, the cutting blade 38 can be received in a mobile manner, particularly in a mobile manner. slider. The cutting blade 38 can be moved relative to the stationary blade 36 in the cutting direction 30. To that end, the cutting blade 38 can be attached to a transmitter 46 which can be driven by a drive 48 of the drive mechanism. By way of example, actuator 48 may be arranged as a pivoting actuation lever that can be engaged with a pivot shaft 50 that can be secured or coupled to housing 12 (not shown in Figure 2). A pivotal movement of drive 48 around shaft 50 is indicated in Figure 2 by reference numeral 52. Consequently, an oscillating rotary movement of driver 48 can be transferred into reciprocating sliding motion of cutting blade 38 with respect to blade stationary 36. At an input end of the driver 48 that is opposite an input end that is coupled to the transmitter 46, a motor, particularly an eccentric portion of an output shaft thereof, can drive the driver 48. As how can best be seen in Figure 2, the actuator 48 can be at least slightly curved. As a result, the blade assembly 20 can be at least slightly inclined with respect to an orientation of an output shaft of a respective electric motor.
[0071] Furthermore, at least one inclination element 42 can be arranged between the support arm 44 and the cutting blade 38. The inclination element 42, particularly a first and a second inclination element 42, can actually force cutter blade 38 to contact stationary blade 36 to improve cutting performance. In addition, the tilting element 42 can apply a reset force to the cutter blade 38 and additionally dampen or attenuate the movement of the cutter blade 38. This can have a positive impact on cutting performance and movement noise. of the blade set 20.
[0072] At the side ends of the blade assembly 20, side connectors 56 connecting the support arm 44 and the stationary blade 36 may be provided. The toothed first leading edge 22 and the second toothed leading edge 24 of the blade assembly 20 may , in general, extend in the lateral Z direction. The first toothed leading edge 22 and the second toothed leading edge 24 may be spaced apart from each other in the longitudinal X direction.
[0073] As best seen in Figure 4, the stationary blade 36 and the cutting blade 38 are stacked in the vertical direction or in the height direction Y. A front face of the stationary blade 36 is indicated in Figure 3 by the reference number 58. Front face 58 is the side or surface of stationary blade 36 that is normally facing the skin when blade assembly 20 is in operation. A rear face which normally faces away from the front face 58 is indicated in Figure 3 by reference numeral 60. The cutting blade 38 contacts the stationary blade 36 on the rear face 60 thereof.
[0074] As can be further seen in Figure 4, respective portions of the stationary blade 36 that are associated with the first serrated leading edge 22 and with the second serrated leading edge 24 may be at least slightly sloped and/or curved. Thus, the front face 58 and the rear face 60 do not necessarily have to be perfectly parallel to each other and/or to a plane that is defined by the longitudinal direction X and the lateral direction Z. However, it can be assumed that the face front 58 and rear face 60 are substantially parallel to the aforementioned plane XZ.
[0075] With specific reference to Figure 4 and Figure 5, an exemplary embodiment of the set of blades 20 is further detailed. The serrated leading edges 22, 24 of the blade assembly 20 may be formed by a series of teeth 62 of the stationary blade and a series of corresponding teeth 64 of the cutting blade. The teeth 62, 64 can basically extend in the X longitudinal direction. A row or series of teeth 62, 64 can basically extend in the Z lateral direction and form a corresponding leading edge 22, 24. Between the teeth 62, 64, respective gaps or tooth gaps can be provided. Hair may enter the slits and then be cut due to the relative movement of the cutting blade 38 relative to the stationary blade 36. The tips of teeth 62 of the stationary blade 36 are indicated by reference numeral 66 in Figures 3 and 4. The ends of the teeth 64 of the cutting blade 38 are indicated in Figures 3 and 4 by the reference numeral 72. Both the teeth 62 of the stationary blade 36 and the teeth 64 of the cutting blade 38 may comprise, at least on the lateral sides, facing cutting edges. to each other that can contact the blade to cut hair with a scissors or clipping action when the cutting blade 38 is moved relative to the stationary blade 36.
[0076] As can be seen further in Figures 4 and 5, the cutting blade 38 can comprise a U-shaped frame body forming a guide or sliding slot 68. At the ends of the U-shaped profile, toothed portions can be provided to form leading edges 22, 24 with the respective teeth 62 of the stationary blade 36. In general, the cutting blade 38 can be obtained from a sheet of metal that can be formed and processed properly.
[0077] The stationary blade 36 can be composed of two portions that can be shaped and connected or glued in a wing-like fashion. Each of the components can finally form teeth 62 of one of the first serrated leading edge 22 and the second serrated leading edge 24, respectively. Each of the wing-shaped components can comprise a basic L-shaped section. Both components can be properly attached to one another, for example by gluing, welding etc. Accordingly, the stationary blade 36 may comprise a basic T-shaped profile which extends in the lateral direction Z. A rod of the T-shaped profile may define a guide support 70 which is arranged to cooperate with the guide or sliding slot. 68 of the cutting blade 38. In the assembled state, the guide bracket 70 can be inserted into the sliding slot 68. Accordingly, the stationary blade 36 can provide a guide projecting towards the cutting blade 38 that engages a corresponding slot thereof. . The cutting blade 38 can be moved relative to the stationary blade 36 reciprocally in the lateral direction Z. A guide support in the longitudinal direction X and in the vertical direction Y is provided by the stationary blade 36. The tilting elements 42 can bias the cutter blade 38 against the stationary blade 36 until it abuts against it. Consequently, the longitudinal and vertical position of the cutting blade 38 can be sufficiently defined.
[0078] Reference is again made to Figures 2 and 3. As can best be seen in Figure 3, the blade assembly 29 is basically symmetrical in shape with respect to a central plane that is parallel to the longitudinal direction X and the vertical direction Y. However, it is preferred that the blade assembly 20 is always fixed to the cutting head 18 (Figure 1) in a defined orientation. Particularly, a so-called back-to-front engagement of the blade assembly 20 is to be avoided. It is therefore preferred in at least some embodiments to provide a blade assembly 20, particularly the receiving frame 40 thereof, with at least one engagement element 54 which ensures that the blade assembly 20 can be engaged with the head. 18 only in the desired orientation. By way of example, the side connectors 56 can be provided with respective features. As can be seen in Figures 2 and 3, an exemplary engagement element 54 may comprise an engagement tab, for example, while other shapes are also possible. In general, the engagement tab 54 may be arranged as a bulge or recess in the receiving frame 40, particularly the side connector 56 thereof. Engagement member 54 may be arranged to engage a corresponding coupling engagement member 108 provided in housing region 32, with reference also to Figure 11.
[0079] In this regard, further reference is made to Figures 6 to 12. As can be seen in Figure 6, a skin shield or skin shield 76 can be attached to the cutting head 18, particularly to the housing region 32 of the same. The skin protector 76 can be made of resilient material, particularly plastic material. Preferably, the skin protector 76 is an integrally formed part. The skin shield 76 can be releasably attached to the cutting head 18. Alternatively, the skin shield 76 can be permanently attached to the cutting head 18. As a consequence, the skin shield 76 can be supplied as an accessory part or integral of the cutter head 18. The skin shield 76 may comprise at least one row of guide tabs 78. Preferably, the skin shield 76 comprises a first row of guide tabs 78 associated with the toothed first leading edge 22 and a second row of guide tabs 78 associated with the second toothed leading edge 24. As best seen in Figure 7 and Figure 10, the guide tabs 78 are preferably aligned with the teeth 62 of the stationary blade 36 , particularly in the Z longitudinal direction. As a consequence, the guide tabs 78 can serve as longitudinal extensions of the teeth 62 and prepare the skin of the skin area to be trimmed before the respective skin portion comes into contact. act with the set of blades 20.
[0080] As best seen in Figure 6, the skin protector 76 may comprise a frame body 80, preferably a closed frame body 80, which surrounds a blade opening 82 (see also Figure 11) in which the blade assembly 20, particularly the stationary blade 36 thereof, may be disposed in the engaged state of the skin protector 76. The frame body 80 may further comprise two base tabs 84 which are spaced apart in the longitudinal direction X and generally they extend in the Z lateral direction and the Y vertical direction. In addition, the frame body 80 may comprise two side tabs 86 which are spaced apart in the Z lateral direction and basically extend in the X lateral direction and the Y vertical direction. 86 may further comprise features for handling, particularly handling ridges or indentations that can be easily held or grasped by an operator's hand. Furthermore, one of the two base tabs 84 may be provided with an alignment or positioning feature, particularly a positioning recess 88 which is arranged to engage a corresponding alignment feature, particularly an alignment protrusion 106 in the housing region. 32, referring particularly to Figure 11. As best seen in Figure 13, the opposing base tab 84 is preferably not provided with a respective positioning recess 88. As a consequence, the skin protector 76 may be engaged in the housing region 32 only in a single desired orientation. Engagement failures can be avoided.
[0081] Alternatively or additionally, the base tabs 84 may comprise handling features, particularly ridges, indentations etc. Alternatively or additionally, the side tabs 86 may be provided with an alignment or positioning feature which is arranged to engage a respective alignment feature in the housing region 32.
The frame body 80 of the skin protector 76 further comprises support arms 90 which basically connect the base tabs 84 to their adjacent side tabs 86. At a front end of the base tabs 84, respective guide tabs 78 of the skin protector 76 are provided. A front face of the skin protector 76 which is defined by respective front end faces of the guide tabs 78 is indicated in Figure 6 by reference numeral 92; see also Figure 8 and Figure 9.
[0083] Further reference is made to Figure 8 and Figure 9, each of which illustrates an enlarged partial cross-sectional view of the cutting head 18. Figure 8 shows a central cross-sectional view taken along line VIII- VIII in Figure 7. Figure 9 shows a cross-sectional view taken along line IX-IX in Figure 7. It is preferred that the set of blades 20, particularly the stationary blade 36 thereof, protrude at least slightly in addition to the front face 92 of the skin shield 76. By way of example, the front face 58 of the stationary blade 36 can be offset from the front face 92 of the skin shield 76 by an offset dimension lo. In other words, the front face 92 can be displaced backwards from the front face 58 of the stationary blade 36. In general, the front face 58 of the stationary blade 36 can comprise a basically uniform and flat shape. In general, the front face 92 of the skin protector 76 may comprise a basically uniform and flat shape. However, as can also be seen in Figures 8 and 9, the respective front faces 58, 92 do not necessarily have to be perfectly flat and parallel to each other. This can particularly apply to the opposite sections of the front faces 58, 92 which are associated with the toothed front edges 22, 24 respectively.
[0084] Preferably, the displacement dimension lo is in the range of about (eg slightly above) from 0.0mm to about 0.5mm. More preferably, the displacement dimension is in the range of from about 0.15 mm to about 0.5 mm. For ease of definition, displacement dimension lo may be determined at (or adjacent to) a transition between stationary blade 36 and skin shield 78 near ends 66 of teeth 62 of stationary blade 36. a vertical displacement is determined which can be considered a lo displacement dimension. However, other methods of determining the displacement dimension lo can be considered, for example, by determining a vertical displacement between the highest points of the front face 58 of the stationary blade 36 and the front face 92 of the skin shield 78.
[0085] As can be further seen from Figure 8, the guide tabs 78 can basically comprise a triangular shape. Guide tabs 78 can be delimited by front face 92 and a slanted end surface 98 basically facing away from the front face 98. Front face 92 and slanted end surface 98 can integrate with each other at one end. of end 96 of guide tabs 78. An angle of inclination α between end surface 98 and front face 92 may be in the range between about 30° and about 60° (degrees), preferably in the range between about 40° and about 50°. This can increase the cutting performance and skin guard performance of the shaving head 18 which is fitted with the skin guard 76.
[0086] A longitudinal extent lt of the guide tabs 78 is shown in Figure 9. Preferably, the longitudinal extent lt is in the range between about 0.0 mm and about 5.0 mm. More preferably, the longitudinal extent lt is in the range from about 2.0 mm to about 4.0 mm, more preferably in the range from about 2.5 mm to about 3.5 mm, and with even more preferably, the longitudinal extent lt is about 3.0 mm. The above ranges and value can be considered as a beneficial trade-off between the ability to follow the contour of the shaving head 18 and the skin protection performance, as well as the haircutting performance of the shaving head 18.
[0087] As can be further seen in Figure 9, the at least one engagement element 54, for example an engagement tab which is associated with the blade assembly 20 may engage, in the engaged state, a corresponding engagement element 108, for example, a positioning recess, which is provided in the housing region 32.
[0088] In this regard, further reference is made to Figures 10, 11 and 12. As can best be seen from Figures 11 and 12, the base tabs 84 may additionally comprise at least one engaging element or engaging element per pressure. For that purpose, the base tabs 84 can be defined so that the snap-fit element 94 can be forced into contact with at least one mating coupling engagement element 100 that is provided in the housing region 32 of the headstock. cutter 18. Accordingly, a press or clamp connection between the skin protector 76 and the housing region 32 can be obtained. Preferably, the skin protector 76 is releasably secured to the housing region 32. The snap-on element 94 is basically hidden in Figures 10 and 11 and therefore indicated by dashed lines. Alternatively or additionally, the side tabs 86 can be provided with snap-in features which can engage corresponding features in a receiving portion of the side tabs of the housing region 32. In general, the snap-in engagement elements can be forced into engagement. contact with their counterparts so that a snug engagement or forced engagement of the skin guard 74 on the cutter head 18 can be obtained.
[0089] Although the invention has been illustrated and described in detail in the drawings and in 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 drawings, the disclosure and the appended claims.
[0090] 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. The mere fact that certain measures are mentioned in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
[0091] 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. CUTTING HEAD (18), for a hair trimmer (10), particularly an electrically operated body hair trimmer (10), the cutting head (18) comprising: - a set of blades (20) comprising a stationary blade (36) and a cutting blade (38), the stationary blade (36) and the cutting blade (38) comprising at least one toothed leading edge (22, 24) defined together by the respective teeth (62, 64) of the stationary blade (36) and the cutting blade (38), the teeth (62, 64) of the stationary blade (36) and the cutting blade (38) extending in a longitudinal direction (X), - a skin protector (76) comprising a plurality of guide tabs (78) which are aligned with the teeth (62) of the stationary blade (36), the stationary blade (36) ) further comprises a front face (58), particularly on the teeth (62) thereof, the front face (58) being arranged facing the skin of a human. during operation, the cutting blade (38) being at least partially disposed on a rear face (60) of the stationary blade (36) facing away from the front face (58), particularly on the teeth (62 ) of the stationary blade (36), whereby the cutting blade (38) can be reciprocally moved relative to the stationary blade (36) to cut hair, the guide tabs (78) of the skin protector (76) being disposed adjacent to the longitudinal tips (66) of the teeth (62) of the stationary blade (36) in a longitudinally offset position, the skin protector (76) defining a front face (92), particularly on the guide flaps (78) of the same, the front face (92) being disposed facing a user's skin during operation, and the front face (92) of the skin protector (76) being at least partially displaced backwards from of the front face (58) of the stationary blade (36), characterized by the skin protector (76) with comprising at least one snap-on element (94) which is adapted to a corresponding engaging portion (100) of a housing region (32) of the cutting head (18).
[0002]
2. CUTTING HEAD (18) according to claim 1, characterized in that the skin protector (76) comprises at least one row of guide flaps (78) extending from a frame body (80), wherein the guide tabs (78) of the row are alternated with spaced apart slits arranged therebetween which are aligned with respective tooth spaces disposed between the teeth (62) of the stationary blade (36).
[0003]
3. CUTTING HEAD (18) according to claim 1 or 2, characterized in that the number of teeth of the stationary blade (62) is equal to or greater than the number of guide flaps (78) on the skin protector (76 ), wherein a ratio of the number of teeth (62) on the stationary blade (36) to the number of guide tabs (78) on the skin protector (76) is preferably an integer.
[0004]
4. CUTTING HEAD (18), according to any one of claims 1 to 3, characterized in that the set of blades (20) is a set of double-sided blades (20), the stationary blade (36) and the cutting blade (38) define a first serrated leading edge (22) and a second serrated leading edge (24) which faces away from the first leading edge, the serrated first leading edge (22) and the second serrated edge toothed front (24) are longitudinally spaced apart, and the skin protector (76) comprising a first array of guide tabs (78) associated with the first toothed leading edge (22) and a second array of guide tabs associated (78) with the second toothed leading edge (24).
[0005]
5. CUTTING HEAD (18) according to claim 4, characterized by the teeth (62) of the stationary blade (36) on the first toothed front edge (22) and the teeth (62) of the stationary blade (36) of the second toothed leading edge (24) are laterally displaced from one another, and the first arrangement of guide tabs (78) and the second arrangement of guide tabs (78) being similarly displaced from one another.
[0006]
6. CUTTING HEAD (18) according to any one of claims 1 to 5, characterized in that the skin protector (76) is arranged as a skin protector accessory (76) which is releasably attachable to the cutter head ( 18), wherein the skin protector (76) is preferably an integrally formed part made of resilient material, particularly plastic material.
[0007]
7. CUTTING HEAD (18) according to any one of claims 1 to 6, characterized in that a set of skin protectors (76) is provided, which are releasably attachable to the cutting head (18) and which differ in the number and shape of their guide tabs (78).
[0008]
8. CUTTING HEAD (18) according to any ONE of claims 1 to 7, characterized in that the skin protector (76) and the cutting head (18) comprise at least one positioning element (88) and at least one corresponding engagement element (106), which are configured to define an engagement position of the skin shield (76) on the cutter head (18) so that reverse engagement of the skin shield (76) can be avoided.
[0009]
9. CUTTING HEAD (18), according to any one of claims 1 to 8, characterized in that the set of blades (20) and a housing region (32) of the cutting head (18) comprise at least one positioning element (108) and at least one corresponding engagement element (54), which are configured to define an engagement position of the skin shield (20) on the cutter head (18), so that the reverse engagement of the skin shield ( 20) can be avoided.
[0010]
10. CUTTING HEAD (18) according to any one of claims 1 to 9, characterized in that the guide flaps (78) of the skin protector (76) comprise a longitudinal extension (lt), particularly on the front face (92) of the skin protector (76), which is less than 5.0 mm, preferably 3.0 mm.
[0011]
11. CUTTING HEAD (18) according to any one of claims 1 to 10, characterized in that the front face (92) of the skin protector (76) is displaced backwards from the front face (58) of the stationary blade by a displacement dimension (lo) in the range of 0.0mm to 0.5mm, preferably in the range between 0.35mm and 0.5mm.
[0012]
12. CUTTING HEAD (18) according to any one of claims 1 to 11, characterized in that the guide flaps (78) of the skin protector (76) comprise an end tip (96) at its longitudinal end, wherein the end tip (96) connects the front face (92) and a respective slanted end surface (98) of the guide tabs (78), with a slant angle (α) between the front face (92) and the The sloped end surface (98) of the guide tabs (78) is in the range between 30° to 60°, preferably in the range between 40° to 50°, more preferably 45°.
[0013]
13. CUTTING HEAD (18), according to any one of claims 1 to 12, characterized in that the skin protector (76) comprises a closed structure similar to a loop formed by a body of the frame (80), wherein the structure closed encircles a blade aperture (82) by the blade assembly (20) being disposed in the engaged state with the blade aperture (82), the frame body (80) comprising two opposing base tabs (84), which extend laterally and vertically at the longitudinal ends, and two opposing lateral tabs (86), which extend laterally and vertically at the lateral ends, and that at least one of the base tabs (84) or the side tabs (86) comprises a feature alignment of engagement (88), particularly a recess or a protrusion.
[0014]
CUTTING HEAD (18) according to claim 13, characterized in that the side tabs (86) are coupled to U-shaped side arm portions (90) disposed adjacent to the lateral ends of the blade assembly (20) and that at least one of the base tabs (84) and the side tabs (86) comprise snap-on features and include at least one engaging element (94) for engaging a coupling engaging element (100) in a region housing (32) of the cutter head (18).
[0015]
15. APPLIANCE FOR HAIR CUTTING (10), particularly an electrically operated body hair trimmer (10), the hair cutting device (10) being characterized in that it comprises a cutting head (18) and a skin protector (76) as defined in any one of claims 1 to 14.

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同族专利:

公开号 | 公开日

US20170190063A1|2017-07-06|

CN105437264A|2016-03-30|

RU2651550C1|2018-04-20|

BR112016028997A2|2017-08-22|

WO2016041959A1|2016-03-24|

CN205600775U|2016-09-28|

JP2017500961A|2017-01-12|

EP3131711B1|2018-03-21|

EP3131711A1|2017-02-22|

CN105437264B|2019-10-15|

JP6110572B2|2017-04-05|

TR201807727T4|2018-06-21|

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法律状态:
2020-01-28| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

2021-03-02| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|

2021-06-22| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

2021-08-31| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/09/2015, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

EP14185435|2014-09-18|

EP14185435.6|2014-09-18|

PCT/EP2015/071094|WO2016041959A1|2014-09-18|2015-09-15|Cutting head and hair cutting appliance|

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