CN214446558U

CN214446558U - Tool for receiving replaceable inserts

Info

Publication number: CN214446558U
Application number: CN202021421086.2U
Authority: CN
Inventors: J.齐默
Original assignee: Wolfcraft GmbH
Current assignee: Wolfcraft GmbH
Priority date: 2019-07-19
Filing date: 2020-07-17
Publication date: 2021-10-22
Anticipated expiration: 2030-07-17
Also published as: EP3766648A1; EP3766648B1; DE102019119612A1

Abstract

The utility model relates to a cutter for holding removable blade, the cutter has the casing, the casing has the blade passageway, the blade passageway is used for inserting the blade that has the checkpost and caves in, the cutter has along the casing outside along the slider of motion orbital motion, so that move the blade from the collection position of inserting the blade passageway to the operation position that stretches out suddenly from the opening of blade passageway, for making slider and blade be coupled, the slider bears and has the bellied coupling element of checkpost, the protruding embedding checkpost of checkpost is sunken, the cutter has the tool changing button. In order to improve the use advantageously, it is proposed that the tool changer button has a locking section which projects into the path of movement of the slide, on which the slide rests in the final phase of the displacement of the slide into the operating position, and that the locking section can be displaced out of the path of movement of the slide by actuating the tool changer button, so that the slide can displace the blade beyond the operating position outward into the tool changing position, controlling the displacement of the catch projection out of the catch recess.

Description

Tool for receiving replaceable inserts

Technical Field

The utility model relates to a cutter for holding removable blade, the cutter has the casing, the casing has the blade passageway, the blade passageway is used for inserting the blade that has the checkpost and caves in, the cutter still has the edge the casing moves along the slider of motion track outside the casing, so that with the blade moves to the operation position that stretches out suddenly from the opening of blade passageway from the collection position that inserts the blade passageway, for making slider and blade coupling, the slider bears and has the bellied coupling element of checkpost, the protruding embedding checkpost of checkpost is sunken in, and the cutter still has the tool changing button.

Background

Document US 2009/0277016 a1 describes a knife having a blade carried by a slider, wherein the slider is movable in a housing of the knife by means of a handle. The tool change button has a locking section which projects into the path of movement of the slide and must be actuated in order to move the slide out of the working position into the tool change position.

Document DE 202005016202U 1 likewise describes a tool with a slide which carries the blade and which can be brought from a storage position into an operating position. The pivot lever has a locking section, against which the slide rests in the operating position. By pivoting the pivot lever, the locking section is moved out of the path of movement, so that the slide can be changed into the tool exchange position.

Document DE 202011050068U 1 describes a similarly designed tool with a locking section formed by a swivel lever.

A tool with a lateral push button is known, for example, from DE 202013101416U 1.

A tool with a swivel lever is known, for example, from DE 20202165U 1.

Furthermore, documents GB 2213416B, CN 105171781A, US 5,581,890A, WO 2016/201532, DE 212011100211U 1, DE 2736395B 1, DE 7207013, EP 3165337 a1, GB 2428618B, CN 206105907, CN 204976674, DE 19717830 a1 and GB 2265104 disclose various tools with blades which can be changed from a storage position to a working position by operating a slide and in which the used blade can be replaced by a new blade.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that be favorable to using the ground to improve above-mentioned type's cutter.

The object is achieved according to the invention by a tool for receiving a replaceable blade, having a housing, which has a blade channel for inserting a blade with a detent depression, having a slide which is movable along a path of movement along the housing outside the housing in order to move the blade from a storage position inserted into the blade channel into an operating position projecting out of an opening of the blade channel, the slide carrying a coupling element with a detent projection which engages in the detent depression in order to couple the slide to the blade, and having a tool changer, wherein provision is made that the tool changer has a locking section which projects into the path of movement of the slide, against which locking section the slide rests in the final phase of movement of the slide into the operating position, and the locking section can be moved out of the movement path of the slide by operating the tool change button, so that the slide can move the blade out of the working position into the tool change position, wherein the clip projection is controlled to move out of the clip recess.

The utility model discloses a first aspect relates to a tool changing button. The tool changing button is in particular designed as a push button. The push button may have a locking section protruding into the movement track of the slider. The slide is designed to abut against the locking section in the final phase of the movement of the slide from the storage position into the operating position. The locking section can be moved out of the path of movement of the slide by actuation of the tool changing button, so that the slide can be moved out of the working position after actuation of the tool changing button. The tool assumes a tool changing position in this case. A catch projection is provided which engages in a catch recess of the blade both in the storage position and in the operating position. The blade is fixed to the blade holder by means of the clip projections. In the tool changing position, the catch projection is moved out of the catch recess, so that the blade can be pulled out of the blade channel and can be replaced by a new blade. The catch projection is associated with a coupling element, which is in turn mounted on the blade holder or on the blade holder device. The blade holder or blade holder assembly is attached to the slide. In a development of the invention, it is provided that the coupling element has a control element. The control element can rest against a control flank, for example a control ramp or a control curve, which is fixed to the housing, when the slide is moved from the working position into the tool exchange position, in order thereby to bring the coupling element from the coupling position into the decoupling position. Another aspect of the invention relates to the design of the coupling element. The coupling element may be configured as a curved elastomer. The bending elastic body can be bent transversely to the direction of movement of the slide when the slide is moved from the working position to the tool changing position. The bending spring can be formed by a spring-elastic sheet metal, for example a leaf spring. It is however also possible that the coupling element is a rigid body. The rigid body can be pivotably movably fastened, for example, to the blade holder or to the coupling element holder. In one embodiment of the invention, it is provided that the coupling element forms a control side or control element of the material strip, for example a spring web. In particular, it can be provided that the spring webs are sections of uniform material or spring-elastic sheet metal. It may relate to a bent-back, in particular U-shaped, bent-back strip of material. The fixed control side of the housing can be formed by a projection or the like of the housing, wherein the housing is preferably formed by two housing halves. In a development of the invention, it is provided that the slide is mounted in a vernier-like manner on the narrow side of the housing. The slider may have arms extending on both broad sides. The locking section can be located in its locking position in the path of movement of one of the arms. The tool exchange button is preferably also assigned to the broad side of the housing, and the locking section is moved out of the path of movement of the arm of the slide if the tool exchange button is actuated counter to the restoring force of the first spring element. In particular, the locking section is thereby displaced in the direction of the housing. The locking section can be overstroked by the arm of the slider. The first spring element may be a helical compression spring. It can be supported on a U-shaped spring holder which is mounted inside the housing and is fixed with its U-shaped arm on the inside of one of the housing halves. A first spring element can be mounted on the U-shaped connecting strip. The coupling element may be a stamped sheet metal part. The catch projection may be a curved section of the coupling element. The control element can also be a section which is connected to the coupling element in a material-uniform manner. In a development of the invention, it is provided that the slide forms an operating section arranged between its two arms. A blade holder may be connected to the operating section. The blade support protrudes through the housing aperture into the blade feed passage. The housing gap may be provided at the interface between the two housing halves. The blade holder can form a bearing side on which the broad side of the blade can be supported. The blade support can also form a support shoulder on which the rear edge of the blade can be supported. In addition, the blade holder can also form a holding lug, on which the blade of the blade can be supported. Furthermore, a second spring element can be provided, which has a first end that is fixed to the slide or to the blade holder. The second end of the second spring element may be fixed to the housing. Preferably, the second spring element is a tension spring, the tension spring slider automatically pulling back into the stowed position. It is also possible to provide a latching element with which the slide is latched in the operating position. However, it can also be provided that no latching means are provided, so that the slide is held in the operating position intentionally. In one embodiment of the invention, it can be provided that the blade carrier is provided with a holding side which is spatially opposite the support side. A blade may be disposed on the first broad side of the blade holder. A coupling element can be arranged on a second broad side of the blade carrier opposite the first broad side. In a development of the invention, it can be provided that the holding side is designed for holding a coupling element of a coupling element holder, which is arranged directly on the blade holder. The blade holder, the coupling element holder and the slider may constitute a functional unit. Both the blade holder and the coupling element holder can have holding sections, for example, right-angled bends, which can be inserted into the slots of the slider. In the assembled state, in which the broad side of the coupling element rests against the broad side of the blade carrier, the two holding sections form a T-shaped profile which is pushed into an insertion cutout having a T-shaped cross section.

A particularly preferred solution to the above-mentioned problem consists in that the control side of the coupling element is formed by a U-bent back metal strip. Another, likewise preferred solution to the technical problem consists in that the fastening section of the coupling element is seated in a receptacle which is formed by a plurality of ribs which project over a small distance beyond the base surface of the holding side of the coupling element carrier. Another, likewise preferred solution to the stated object is to actuate the tool changer button against the restoring force of a helical compression spring which is supported on a U-shaped spring holder which is fastened by its U-shaped arm to the inside of the housing.

The function of the device is as follows. The slide remains in its retracted position in the operative state. In this position, the blade is in its stowed position. If the slider is moved against the return force of the second spring element, the blade enters its operating position from the communication opening of the blade channel. The slide can be moved until it abuts against the locking section. In this position, the control element is in front of the control bevel or control rounding of the housing. The blade is fixed to the blade holder by means of a catch projection which engages in a catch recess of the blade. The coupling element, which is in particular designed as a flat body, extends in a plane and lies flat against the holding side of the coupling element. If the tool changing button is pressed, the slider can be moved outward from the working position to the tool changing position. The control element of the coupling element rests here against a control bevel or control curve of the blade channel. This achieves that the clip projection is displaced out of the clip recess transversely to the displacement direction of the slide. This lateral movement is caused by the sliding of the control element over the control ramp or control curve of the blade channel. In this embodiment, the control element is a leaf spring-like body which can be elastically deflected. The coupling element is elastically pretensioned during the displacement of the catch projection out of the catch recess. In a reset movement of the slide from the tool exchange position, for example, into the operating position, the coupling element returns to the operating position, in which the catch projection engages in the catch recess.

The end section of the coupling element remote from the latching projection forms a fastening section which is fastened immovably to the coupling element carrier. The securing section may be inserted into the slot.

Drawings

Embodiments of the invention are explained in more detail below with the aid of the figures. In the drawings:

figure 1 shows a first perspective view of the embodiment in the operating position,

figure 2 shows a second perspective view also in the operating position,

figure 3 shows the view in the stowed position,

figure 4 shows a view according to section line IV in figure 3,

figure 5 shows a cross-sectional view according to section line V-V in figure 4,

figure 6 shows the view according to figure 3 but in the working position,

figure 7 shows the view according to figure 5 but in the working position,

figure 8 shows the view according to figure 6 but in the knife change position,

figure 9 shows the view according to figure 7 but in the change position,

figure 10 shows an exploded view of the elements of the knife,

figure 11 shows in an enlarged manner the coupling element holder 26 with the coupling element 4,

figure 12 shows a view in the viewing direction XII of figure 11,

figure 12a shows a view in the viewing direction XIIa of figure 11,

figure 13 shows a further exploded view of the device,

figure 14 shows a cross-section according to section line XIV-XIV in figure 6,

figure 15 shows a cross-section according to section line XV-XV in figure 14,

figure 16 shows a cross-sectional view according to section line XVI-XVI in figure 8,

figure 17 schematically shows a cross-sectional view according to section line XVII-XVII in figure 16.

Detailed Description

The knife shown in the figures has a handle which constitutes the housing. The housing is formed by two similarly designed

housing halves

1, 2. The

housing halves

1, 2 may be made of plastic, aluminum, die-cast zinc or other suitable material. The housing halves form a blade channel 3 with mutually facing ribs, in which the blade 12 can be moved back and forth.

The slider 7 straddles the narrow sides of the

housings

1, 2. The slider 7 has two

arms

9, 9' of different thickness extending parallel to each other, which are connected to each other by means of an operating section 9 ″. The operating section has a recess with an undercut on both sides on its side facing the U-shaped gap. The recesses constitute slots 28 for the blade holder 10 and the holding section 29 of the coupling element holder 26. The blade holder 10 has broad sides which form support legs 15 on which the broad sides of the trapezoidal blade 12 can be supported. The rear edge 12 ″ of the cutting insert 12 can be supported on the support shoulder 22 of the cutting insert holder 10. The back of the coupling element holder 26 rests against the back of the blade holder 10. If the blade holder 10 and the coupling element holder 26 are placed against each other, they form a T-shaped cross section together with the holding section 29. On the side of the blade holder arrangement formed by the blade holder 10 and the coupling element holder 26 facing away from the support flank 15, there is a holding flank 21 which merges into a receptacle 25 for the insertion of the fastening section 24 of the coupling element 4. The slot 25 is formed by a plurality of ribs 31 which project over a small distance beyond the base surface of the holding side 21. The coupling element 4 shown in fig. 11, which is made of a metal strip, can be inserted with its fastening section 24 into the insertion slot 25. In this state, the broad side of the coupling element 4 lies flat against the holding side 21. (see FIGS. 12, 12a, 15 and 17).

The coupling element 4 is a spring-elastic body which is lifted from the holding side 21 by a transverse force. In this case, the section of the coupling element 4 embodied as the latching projection 5 is bent relative to the stationary fixing section 24. Adjacent to the fastening portion 24 are mutually opposite recesses 27. (see fig. 17) the recesses 27 are located at the level of the upper ribs 31 so that they can enter the recesses 27 when the coupling element 4 is bent, thereby preventing the coupling element 4 from falling out of the insertion slot 25.

The blade holder device has a hook-shaped section on its rear side. In this embodiment, both the blade holder 10 and the coupling element holder 26 have a hook-shaped section. One end of the second spring element 18 is fixed to the hook-shaped section. The second spring element 18 is in this embodiment a tension spring. The other end of the second spring element 18 is then fixed to the housing, thereby exerting a spring force on the blade holder arrangement. In this embodiment, a tensile force is involved, which loads the slide from the operating position shown in fig. 7 into the storage position shown in fig. 5.

The curved portion of the coupling element 4 forms a catch projection 5 which engages in a catch recess 23 of the blade 12. The blade 12 is thereby fixed on the blade holder arrangement and can be moved by the movement of the slide from a stowed position, in which the front edge 12 'of the blade 12 is inside the blade channel 3, to an operating position, in which the front edge 12' projects from the

housing

1, 2.

A U-shaped spring holder 19 is fixed on the housing half 1 on the inner side facing the blade channel 3. The spring holder 19 carries a first spring element 20, which is designed as a compression spring, said first spring element 20 loading the tool exchange button 16 in the direction of the housing exterior. The operating section of the tool exchange button 16 projects through the opening 32 of the housing half 1. The tool exchange button 16 forms a locking section 17 which projects from the housing interior through an opening 33 corresponding to the locking section in the inoperative position of the tool exchange button 16. The tool exchange button is in the path of movement of the arm 9 of the slide 7, so that the slide 7 can only be moved into the working position shown in fig. 14. When the tool exchange button 16 is brought into the position moved towards fig. 16 by applying a force F directed towards the interior of the housing, the locking section 17 is moved out of the path of movement of the arm 9, so that the arm 9 can be moved outwards from the working position to the tool exchange position shown in fig. 16. In this embodiment, the locking section engages in a slot 34 of the arm 9.

Fig. 11 and 12 show a coupling element 4 according to the invention, which constitutes the control element 6. The control element 6 constitutes a control side 6'. In this exemplary embodiment, the control element 6 is formed by an elongate strip, which is integrally connected to the coupling element material and which, in the form of a U, is bent back so that the control element is in front of the control shoulder 14 in the operating position shown in fig. 14. The control shoulder 14 can also be designed as a control curve or as a control ramp, which forms an abutment edge against which the control edge 6' of the control element 6 can abut. In the position shown in fig. 14, the contact of the control flanks 6' of the control shoulder 14 has not yet produced a valid result. As soon as the tool exchange button 16 is brought into the position shown in fig. 16 and the slide 7 is moved into the tool exchange position shown here, the control side 6' of the control element 6 slides along the control shoulder 14, so that the coupling element 4 is bent in a direction perpendicular to the direction of movement of the slide 7. Here, the clip projection 5 is removed from the clip recess 23. Thereby enabling the blade 12 to be pulled out of the blade channel 3 and replaced with a new blade. If the slide 7 is moved back again, the coupling element 4, which is tensioned during its deformation, relaxes and returns to the position shown in fig. 14, in which the catch projection 15 engages in the catch recess 23, in order thereby to fix the blade 12 on the

blade carrier device

10, 26.

The above embodiments are intended to illustrate the invention, which is fully incorporated in the present application, and the present invention is at least to be inventive improvements to the prior art by the following technical features, respectively, wherein two, more or all technical feature combinations can also be combined, that is:

a tool, characterized in that the tool exchange button 16 has a locking section 17 which projects into the path of movement of the slide 7, against which the slide 7 rests in the final phase of the movement of the slide 7 into the working position, and which can be moved out of the path of movement of the slide 7 by actuating the tool exchange button 16, so that the slide 7 can move the blade 12 out of the working position into the tool exchange position, wherein the catch projection 5 is controlled to move out of the catch recess.

Tool, characterized in that the coupling element 4 has a control element 6 which interacts with a control side 6' of the blade channel when the slide 7 is moved from the working position into the tool changing position.

Tool, characterized in that the coupling element 4 is a bending elastomer which bends, in particular a spring-elastic sheet material, transversely to the direction of movement when the slide 7 is moved from the operating position into the tool exchange position.

The tool comprises a control side 6' which is formed by a spring web of the coupling element 4, which spring web is in particular bent back and bears against the control side, in particular a control bevel.

Tool, characterized in that the slide 7 is inserted straddling over the narrow sides of the

housings

1, 2 and the slide 7 has arms extending on both broad sides, wherein the locking section 17 is in the path of movement of one of the

arms

9, 9' in its locking position, and/or the tool exchange button 16 is arranged on the broad side of the

housings

1, 2 and the tool exchange button 16 is actuated against the restoring force of a first spring element 20 in order to move the slide 7 into the tool exchange position, wherein in particular a first spring element 20 formed by a helical compression spring is supported on a U-shaped spring holder 19.

A tool, characterized in that the catch projection 5 and the control element 6 are integrally connected by a coupling element 4 designed as a flexible flat body, wherein it is provided in particular that the control element 6 is a section bent out of the flat body.

A tool, characterized in that a blade carrier 10 connected to an actuating section 9 ″ of a slide 7 projects through a housing recess into a blade channel 3 and forms a bearing flank 15, on which a broad side of a blade 12 can be supported, and/or in that a first end of a second spring element 18 acts on the blade carrier 10, the second end of which acts on the

housing

1, 2, the second spring element 18 being in particular a tension spring or a compression spring.

A knife, characterized in that the blade carrier 10 is provided with a holding flank 21 which is spatially opposite the support flank 15 and on which the coupling element 4 is fixed.

A knife is characterized in that the fastening section 24 of the coupling element 4 remote from the latching projection 4 is inserted into a receptacle 25 of a coupling element holder 26.

All the technical features disclosed are important for the invention (by themselves or in different combinations). The disclosure of the belonging/attached priority document (prior application text) is also fully contained in the disclosure of the present application and the features of this document are also included for this purpose in the present application. The present invention also relates to various design solutions, wherein some technical features mentioned in the above description are not implemented, especially when it is considered to be irrelevant for the respective purpose of use or can be replaced by other means serving the same technical purpose.

List of reference numerals

1 casing half

2 half of the housing

3 blade channel

4 coupling element

5 clip bulge

6 control element

6' control side

7 sliding block

8 operating axis

9 arm

9' arm

9' operating section

10 blade support

11 load-bearing section

12 blade

12' front edge

12' rear edge

14 control shoulder

15 supporting side edge

16 tool changing button

17 locking section

18 second spring element

19 spring retainer

20 first spring element

21 holding side

22 support shoulder

23 catch recess

24 fixed section

25 inserting groove

26 coupling element holder

27 groove

28 inserting groove

29 holding section

30 holding tab

31 rib

32 opening

33 opening

34 gap

Claims

1. A tool for accommodating a replaceable blade (12), having a housing (1, 2) with a blade channel (3) for inserting a blade (12) with a catch recess, having a slide (7) which is movable along a path of movement along the housing (1, 2) outside the housing in order to move the blade (12) from a storage position inserted into the blade channel (3) into an operating position projecting from an opening of the blade channel (3), for coupling the slide (7) with the blade (12), which carries a coupling element (4) with a catch projection (5) which engages in the catch recess, and having a tool changing button (16), characterized in that the tool changing button (16) has a locking section (17) which projects into the path of movement of the slide (7), in the final phase of the displacement of the slide (7) into the operating position, the slide (7) rests against the locking section and, by actuating the knife change button (16), can displace the locking section out of the path of movement of the slide (7), so that the slide (7) can displace the blade (12) beyond the operating position outward into the knife change position, wherein the removal of the catch projection (5) out of the catch recess is controlled.

2. Tool according to claim 1, characterized in that the control side (6') of the coupling element (4) is formed by a U-bent back metal strip.

3. Tool according to claim 1, characterized in that the fixing section (24) of the coupling element (4) is inserted into a socket (25) which is constituted by a plurality of ribs (31) which project at a small distance beyond the base surface of the holding side (21) of the coupling element holder (26).

4. Tool according to claim 1, characterized in that the tool change button (16) is operated against the return force of a first spring element (20) which is supported on a U-shaped spring holder (19) which is fixed by its U-shaped arm on the inside of the housing (1, 2).

5. Tool according to claim 1, characterized in that the coupling element (4) has a control element (6) which co-acts with a control side (6') of the blade channel when the slide (7) is moved from the working position to the tool changing position.

6. Tool according to claim 1, characterized in that the coupling element (4) is a curved elastomer which curves transversely to the direction of movement when the slide (7) is moved from the working position to the tool changing position.

7. Tool according to claim 6, characterized in, that the coupling element (4) is a spring-elastic sheet material.

8. Tool according to claim 2, wherein the control side (6') consists of a spring tab of the coupling element (4), which spring tab abuts against the control side.

9. The tool according to claim 8, wherein the spring tab is bent back.

10. The tool according to claim 8, wherein the spring tab abuts a control ramp.

11. Tool according to claim 1, characterized in that the slide (7) is inserted straddling the narrow sides of the housing (1, 2) and in that the slide (7) has arms which extend on both broad sides, wherein the locking section (17) is in the path of movement of one of the arms (9, 9') in its locking position.

12. Tool according to claim 3, characterized in that the tool exchange button (16) is arranged on the broad side of the housing (1, 2) and that the tool exchange button (16) is operated against the return force of the first spring element (20) in order to achieve a movement of the slide (7) to the tool exchange position and/or that the first spring element (20) consisting of a helical pressure spring is supported on a U-shaped spring holder (19).

13. Tool according to claim 1, characterized in that the catch projection (5) and the control element (6) are integrally connected by a coupling element (4) designed as a flat elastic body.

14. Tool according to claim 13, characterized in, that the control element (6) is a section bent from a flat body.

15. Tool according to claim 1, characterized in that a blade carrier (10) connected to the operating section (9 ") of the slide (7) projects through the housing recess into the blade channel (3) and forms a bearing flank (15) on which the broad side of the blade (12) can be supported.

16. Tool according to claim 15, characterized in that a first end of a second spring element (18) acts on the blade holder (10) and a second end of the second spring element acts on the housing (1, 2).

17. Tool according to claim 16, characterized in, that the second spring element (18) is a tension spring or a compression spring.

18. Tool according to claim 15, characterized in that the blade holder (10) is provided with a holding flank (21) spatially opposite the support flank (15), on which the coupling element (4) is fixed.

19. Tool according to claim 1, characterized in that the fastening section (24) of the coupling element (4) remote from the latching projection (5) is inserted into a receptacle (25) of a coupling element holder (26).