• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    This invention relates to a blade with a housing (11) and with an actuation mechanism (14) with which a blade holder (13) can be moved with a blade (47) in the housing (11) between at least one safety position and at least one cutting position, whereby the blade holder (13) is held under spring load (35). The special feature is that the spring (35) is connected to the housing (11) and to a first coupling element (25) and in that the blade holder (13) is assigned to a second coupling element (46) that can mesh with and be disengaged from the first coupling element (25), whereby a movement of the blade holder from the safety position into the cutting position can enable the first coupling element (25) to be driven by the second coupling element (46). -- C Co N 0-0 0(0 C-) L N
    公开号:AU2013224682A1
    申请号:U2013224682
    申请日:2013-09-04
    公开日:2014-03-20
    发明作者:Florian Segler
    申请人:Martor KG；
    IPC主号:B26B1-00
    专利说明:
    This invention relates to a knife. This application claims priority from German application no.10 2012 017 431.4 filed on 4 September 2012, the contents of which are to be taken as incorporated herein by this reference. A knife of this kind is familiar from prior public usage. It comprises a housing containing a blade holder. The blade holder can be moved between a safety position and a cutting position. In its safety position, the blade is arranged inaccessibly inside the housing and in its cutting position, the blade protrudes from the housing. A spring is attached to the housing and to the blade holder, and it applies load to the blade holder, e.g., in the safety position. To effect a blade change, the blade holder is often removed from the housing. This frequently involves the spring being overstretched and thereby destroyed, The task of this invention is to create a cutter in which blade changes are convenient and easy to perform and where damage to the spring is avoided. This task is solved by using a blade with the features of Claim 1. The cutter defined in this invention comprises a housing containing a blade holder. The blade holder is movable between at least one safety position, in which a blade held directly against the blade holder is located inaccessibly in the housing and at least one cutting position, in which the blade holder is arranged in a position in which the blade protrudes from the housing. The blade holder is contained, for example, inside the housing. It can, for example, have the guide surfaces of the housing mounted in anti friction bearings. A spring is connected to the housing and to a first coupling element. The term "spring" is employed in the context of this invention to mean any form of recoil -2 element such as, for example, .a metal spring or a gas strut, etc. It can, for example, take the form of a tension spring or a compression spring. The spring can, for example, be tensioned by a movement of the blade holder between the safety position and the cutting position. In accordance with an alternative or additionally, the spring can be tensioned by a movement of the actuating mechanism or an actuating component from one position to a second position. The first position is, for example, a back position and the second position is, for example a front position. This invention defines "actuating mechanism" in its broadest sense to denote a device used to move a blade holder. For example, an actuation handling unit comprises one form of such an actuating mechanism. The actuating mechanism can, for example, Comprise a movement- transmission mechanism between the handling unit and the blade holder. A second coupling element is arranged beside the blade holder or the actuating mechanism. The second coupling element is, for example, arranged on or secured to the blade holder or on the actuating mechanism, i.e., one or more parts of the actuating mechanism. For example, if the second coupling element is indirectly or directly connected to the blade holder or to the actuating mechanism. The second coupling element can be moved with the first coupling element, disconnectably, but still in contact. If, for example, due to a movement of the actuating mechanism from its non-actuated to its actuated position, the blade holder moves from the safety position to the cutting position, the second coupling element then performs the same movement. The first coupling element is, for example entrained by the second coupling element and is moved from the rear position to the front position, causing the spring to become preloaded. The second coupling element, which remains in contact with the first coupling element is also spring-loaded. If, for example, the second coupling element is secured to the blade holder, the blade holder is then spring-loaded, e.g. into its safety position. If, for example, the second coupling element on the actuating mechanism causes the actuating mechanism to become spring-loaded, e.g., into its safety position. If the blade holder is firmly attached to the actuating -3 mechanism, or if their movements are connected, synchronous movement can occur in the latter case. In the event of a blade change, the blade holder can, for example, be removed from the housing without needing to release the spring because the coupling elements can be disconnected from each other. The blade holder is, for example, removed from the housing with the second coupling element while the first coupling element remains with the spring in the housing. In accordance with one embodiment, the first coupling element is assigned to a carriage that can be moved between a rear position and a front position by means of a guide fixture on the housing. The first coupling element is formed, for example, by a journal. This journal protrudes into the housing in such a way that when it moves from its rear position to its front position, it comes into contact with the second coupling element and is able to drive or entrain this, too. The guide fixture on the carriage comprises, for example, a first guide element assigned to the housing and a second guide that is assigned to the carriage. For example, the first guide elements are formed by a groove or by a slot. The second set of guide elements is, for example, formed by a guide structure on the carriage. The second set of guide elements is, for example, formed by the first coupling element. In accordance with an embodiment of this invention, the blade is held in a blade seat between the first contact surface of the blade holder and a second contact surface of a retaining component. The retaining component can, for example, be moved between a holding position and a release position. In the holding position, the blade applies force and/or creates a positive connection between the first contact surface and the second contact surface. In the release position, the retaining component is moved away from the blade holder so that the blade can be removed from the blade seat.
    -4 The retaining component can, for example, comprise a swivel joint with the blade holder. The swivel joint can, for example, be arranged on a first end area of the blade holder and the retaining component. The blade can, for example, be held on a second end area of the blade holder and the retaining component can be held in the blade seat. For example, here the retaining component constitutes the actuating mechanism. In this case, the housing has, for example, a groove, and the retaining component passes through this. One arm of the actuating mechanism passes through it, e.g. the groove. Any accidental movement of the retaining component between the retaining position and the release position can be prevented by at least having the retaining component comprise an arm that grips below and next to the side panel of the housing. The blade applies force of the retaining component is held by a swivel joint and also by the arm on the blade holder, whereby the arm prevents any accidental movement of the retaining component between the retaining position and the release position. The release position of the retaining component cannot be moved until the assembly module comprising the blade holder and the actuating mechanism has been removed from the housing. Other advantages arise from the following description of an embodiment described in the following. These illustrate: Fig. 1 an exploded view of the blade with a guide unit, a spring carriage, a blade holder and an actuating mechanism, Fig. 2 a partial exploded view of the blade, whereby the spring carriage is mounted on the guide component, Fig. 3 a top view of a first side of the blade, whereby the blade holder and the actuation mechanism are not mounted, -5 Fig. 4 a section view in accordance. with section line IV- IV in Fig. 3, Fig. 5 a top view on a first side of the blade, whereby the blade holder and the actuating mechanism are mounted and whereby the blade is located in the safety position, Fig. 6 a section view in accordance. with section line VI- VI in Fig. 5, Fig. 7 in conjunction with Fig. 5 a top view of the blade, whereby the blade is in cutting position, Fig. 8 a section view in accordance with section line VIII- VIII in Fig. 7, Fig. 9 a schematic top view of the blade holder and the actuating mechanism, Fig. 10 a schematic sectional view in accordance with section line X-X in Fig. 9 The blade in overall terms is designed in Fig. with reference code 10. The same reference code denotes corresponds in the different various diagrams, also with addition or omission of small letters of corresponding parts, In accordance. with Fig. 1, the knife comprises the blade 10, a guide component 11, a spring carriage 12, a blade holder 13 and an actuating mechanism 14. The guide component 11 in this embodiment is formed by a sheet-metal component. On the guide component 11, side areas 15 and 16 are arranged, that are bent around and whose face ends 17 and 18 point towards each other and form guide surfaces. Between face ends 17 and 18, a groove 19 is arranged. A floor area 20 is arranged in a side panel 21 of the guide component 11. The side panel 21 is located opposite a side panel 22 formed by side areas 15 and 16. A blade not shown in Fig. 1 is guided between surface 20 and side areas 15 and 16. In wall 21, a slot 23 is arranged. In a rear area 28 of guide component 11, a tab is cut out and bent. This tab cannot be seen in Fig. 1.
    -6 The spring carriage 12 features a guide surface 24. Furthermore, the spring carriage 12 comprises a driver journal 25 as well as a retaining hook 26. On a guide surface 24 on the opposite side, the spring carriage 12 is provided with a recess 27. The blade holder 13 is fitted with a contact surface, which forms the blade seat 29. The blade, not shown in Fig. 1, is held between the blade holder and the actuating mechanism. The actuating mechanism 14 is provided with a structure 30 that prevents the user's fingers from slipping off. In Fig. 2 the spring carriage 12 is shown in the fitted position. The guide surface 24 is located against an outside face 31 of the side panel 21. The driver journal 25 grips through the slot 23. The movement of the spring carriage 12 is limited in this way. In a rear position, in accordance with Fig. 2, there is a driver journal 25 at one end 32 of the slot 23. In a front position, the driver journal 25 is arranged at one end 33 of the slot 23. In accordance with Fig. 3, the tab 34 can be seen in the rear area 28 of the guide component 11. On tab 34, one end 15 of the above-mentioned spring 35 is secured. Another end is held against the retaining hook 26 of the spring carriage 12. A front area 39 of guide component 11 features a guide surface 36 that is separated from the floor area by an inclined wall panel 38. The guide surface 36 features a shorter distance to an internal surface 37 that is formed by side areas 15 and 16 than to floor area 20. Between the inner surface 37 and the floor area 20, it is therefore possible for the blade holder 13 and the blade (not shown in Fig. 4) to move between the safety position and the cutting position. On blade holder 13, in accordance with Fig. 4, an axis 40 is formed that engages in a bearing race 43 of the actuating mechanism 14. In this way, the blade holder 13 forms a swivel joint G with the actuating mechanism 14 and the -7 geometrical swivel axis a. On the actuating mechanism, Hook-shaped bearing arms 41 are arranged with retaining surfaces 42. In mounted condition of the blade holder 13 and the actuating component 14, bearing arms 41 pass below the side areas 15 and 16 and prevent the actuation from moving from a holding position in a swivel direction z into the release position, The blade seat 29 comprises a bearing journal 44 that fits through an appropriately shaped aperture in the blade and thereby creates a positive connection in the blade seat. Furthermore, the blade seat 29 features an aperture in which a magnet 45 is fitted by means of which the blade is also held in the blade seat 29. On an underside, the blade carrier 13 has a driver surface 46. In Fig. 5, the blade holder is arranged in safety position. The blade 47 shown only partially in Fig. 5, is mounted in the guide component 11 in such a way that the cutting edge of the blade 47 is inaccessible for the user, because the side areas 15 and/ I or 16 cover it. If the assembly unit comprising the actuating mechanism 14, the blade holder 13, and the blade 47 is moved in direction xi, the driver surface 46 of the blade holder 13 makes contact with the driver journal 25, whereby also the spring carriage 12 is moved in direction xi . This thereby tensions spring 35. A movement of the actuating mechanism 14 in direction xi is only possible to the extent that the driver journal 25 makes contact with the end 33 of the slot 23, while the blade holder is then located in the foremost cutting position in which the blade protrudes to a maximum extent from a front aperture 48 in the guide component 11. As soon as the user releases the actuating mechanism 14, the spring carriage 12 is moved in direction x2 by the spring force of spring 35, whereby, via the driver journal 25 and the driver area 46, the blade holder 13 and the actuating mechanism 14 are moved in direction x2.
    -8 The guide component 11 has a fastener, not shown here, with which a rear opening 49 on the guide component 11 can be closed and opened. For a blade change, the fastener is opened and the assembly unit comprising the blade holder 13, the actuation mechanism 14 and the blade 47 are pulled out of the rear aperture of the 49 guide component 11. As soon as the bearing arms 41 no longer grip located under the side sections 15 and 16, the actuation mechanism 14 can be swivelled on the pivot axis away from the blade carrier 13 in swivel direction z1 and into release position such that the blade 13 can be removed from the blade seat and a new blade can be placed into the blade seat. Then the actuation mechanism is swivelled back into the holding position and the assembly unit comprising a blade, blade carrier 13 and actuation mechanism 14 is installed in the guide component 11. At this point, the fastener (not shown) is closed. At this point, the knife is once again ready for operation and able to perform a cutting operation.
    权利要求:
    Claims (10)
    [1] 1. A knife with a housing (11) and with an actuating mechanism (14), whereby a blade holder (13) with a blade (47) between at least one safety position and at least by means of the actuating mechanism (14) one cutting position, whereby in that safety position the blade (47) held on the blade holder (13) is arranged inside the housing (11) and whereby the blade holder (13) is arranged in its cutting position in such a way that the blade (47) protrudes from the housing (11), whereby the blade holder (13) is spring-loaded by a spring (35), characterized in that the spring (35) is connected to the housing (11) and to a first coupling element (25) and in that the blade holder (13) or the actuation mechanism (14) is assigned to a second coupling element (46) that can be moved into contact with the first coupling element (25), from which it can be released, whereby the first coupling element (25) can be driven by the second coupling element (46),
    [2] 2. A knife in accordance with Claim 1, characterized in that the Blade holder (13) is spring-loaded in safety position (35) by spring (35).
    [3] 3. A knife in accordance with Claim 1 or 2, characterized in that the first coupling element is assigned to a carriage (12), that is guided so as be movable a guide fixture on the housing (11) between a rear position and a front position.
    [4] 4. A knife in accordance with Claim 3, characterized in that the guide fixture includes a first guide item (23) that is assigned to the housing (11) and that comprises two guide units that are assigned to the carriage (12).
    [5] 5. A knife in accordance with Claim 4, characterized in that the second guide element is formed by the first coupling element (25).
    [6] 6. A knife in accordance with one of the preceding Claims, characterized in that the blade (47) is held between a support surface on the blade holder (13) and a support surface on a holding component (14). -10
    [7] 7. A knife in accordance with Claim 6, characterized in that the holding part (14) forms a swivel joint (G) with the blade holder (13).
    [8] 8. A knife in accordance with one or more of Claims 6 or 7, characterized in that the housing (11) features a groove (19} that is penetrated by the holding part (14).
    [9] 9. A knife in accordance with Claims 6 through 8, characterized in that the holding part constitutes the actuation mechanism (14).
    [10] 10. A knife in accordance with one of Claims 8 or 9, characterized in that the holding part comprises at least one arm (41) adjacent to the groove (19) that grips below the side sections (15, 16) of the housing (11).
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    同族专利:
    公开号 | 公开日
    AU2013224682B2|2016-01-21|
    EP2703133A1|2014-03-05|
    EP2703133B1|2016-08-31|
    DE102012017431A1|2014-05-15|
    ES2604028T3|2017-03-02|
    US20140059864A1|2014-03-06|
    US9409299B2|2016-08-09|
    AU2013224682C1|2016-03-10|
    CN103659849B|2017-04-12|
    CN103659849A|2014-03-26|
    PL2703133T3|2017-02-28|
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    法律状态:
    2016-03-10| DA3| Amendments made section 104|Free format text: THE NATURE OF THE AMENDMENT IS AS SHOWN IN THE STATEMENT(S) FILED 11 FEB 2016 |
    2016-05-19| FGA| Letters patent sealed or granted (standard patent)|
    2021-04-01| MK14| Patent ceased section 143(a) (annual fees not paid) or expired|
    优先权:
    申请号 | 申请日 | 专利标题
    DE102012017431.4||2012-09-04||
    DE102012017431.4A|DE102012017431A1|2012-09-04|2012-09-04|knife|
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