TWI736005B - Stapler - Google Patents

Abstract

A stapler is provided, including: a main body, including an inner space and a staple outlet; a striking mechanism, disposed in the inner space, including a striking member configured to strike a staple and a driving member by which the striking member is driven to move relative to the staple outlet; a staple straightening mechanism, disposed on the main body, including a receiving hole corresponding to the staple outlet, at least one abutting member being movable within the receiving hole and a force accumulating assembly which is drivable by the driving member, the force accumulating assembly including a blocking portion and a force accumulating member which is releasably blockable with the blocking portion, the force accumulating member being movable toward the receiving hole to strike the at least one abutting member; wherein when the driving member drives the striking member to move toward the staple outlet, the driving member drives the force accumulating member to deform and accumulate force; when the force accumulating member is deformed to disengage from the blocking portion, the force accumulating member instantaneously strikes the at least one abutting member to move in a direction toward the staple outlet, and the at least one abutting member and the striking member press and straighten the staple.

Description

stapler

The invention relates to a stapler.

Generally, a stapler is fixedly provided with a nail anvil corresponding to the nail opening, and the nail anvil is recessed with two recesses that can press the two stitches of a staple, and the two stitches are bent to achieve the binding effect. However, because the two stitches are bent inwardly along the structure of the two recesses, improper operating force will affect the binding effect, and the two stitches cannot be completely flat on a surface of a binding object, resulting in the The thickness of the staples is large, the aesthetics is not good, and it is not conducive to file sorting. Therefore, a stapler with a flat needle function has been developed.

The conventional flat needle stapler, as disclosed in the patent TWM496540, includes a body, a sliding table movably arranged on the body, and a movable table movably arranged above the sliding table. The movable table is provided with a pair of needle groove holes corresponding to the nail holes, a needle groove sheet for pressing the nail needle is provided in the needle groove hole, and an elastic member is arranged between the needle groove sheet and the main body to make the The needle groove piece has a tendency to move toward the nail opening. When the stapler is not operated, the movable table is blocked by the sliding table and cannot swing downward; when a pressing handle of the stapler is pressed to fire the staple and the staple passes through the object to be bound , The sliding table slides backward and the movable table is separated from the sliding table and can swing downwards, so that the needle groove piece can push the two stitches after the two stitches are bent, so as to achieve the effect of flat stitch binding. However, if the operating force is insufficient, the two stitches cannot be flattened, resulting in poor flat stitching effect.

Therefore, it is necessary to provide a novel and progressive stapler to solve the above-mentioned problems.

The main purpose of the present invention is to provide a stapler, which can surely flatten the stitches of the staples, and the effect of flat stitch binding is good.

To achieve the above objective, the present invention provides a stapler, which includes a main body, a firing mechanism, and a narrowing mechanism. The body includes an internal space and a nail opening. The firing mechanism is arranged in the internal space and includes a striker for striking a nail and a driving element which can drive the striker to move relative to the nail opening. The narrowing mechanism is arranged on the main body and includes a needle groove hole opposite to the nail driving port, at least one pusher movable in the needle groove hole, and a force accumulating component that can be driven by the driving member. The force accumulating component includes a latching part and a force accumulating member releasably blocked with the latching part, and the accumulating element can strike the at least one pushing member toward the needle groove hole. Wherein, when the driving member drives the striking member to move toward the nail-driving port, the driving member drives the force accumulating member to deform and accumulate; The at least one pushing member is moved toward the direction of the nail opening by a moment, so as to press the nail needle with the striking member.

1: stapler

10: body

335: Into the Arm

336: Elastic

11: Internal space

12: Nail hole

13: Dodge Department

131: The first groove

132: second groove

20: firing mechanism

21: Impact parts

22: Driver

30: Narrowing mechanism

31: Needle Groove Hole

32: pusher

321: First Restriction

322: Conflict

33: accumulating component

331: accumulator

332: Card Control Department

333: Block

334: Limit

337: impact part

338: Snap

34: fixed parts

341: Guide interface

342: second restriction

35: connecting piece

351: Flange

40: Linkage mechanism

41: The first link

411,425: swing arm

412,426: Connecting part

42: second link

421: Pivot

422: first end

423: second end

424: shoulder

2: nails

Figure 1 is a perspective view of a preferred embodiment of the present invention.

Figures 2 and 3 are partial exploded views of a preferred embodiment of the present invention.

Fig. 4 is a partial exploded view of a flat needle mechanism of a preferred embodiment of the present invention.

5 to 7 are schematic diagrams of the operation of the flat needle mechanism according to a preferred embodiment of the present invention.

Figures 8 to 11 are actuated cross-sectional views of a preferred embodiment of the present invention.

The following examples are only used to illustrate the possible implementation aspects of the present invention, but they are not intended to limit the scope of protection of the present invention, and are described first.

Please refer to FIGS. 1 to 10, which show a preferred embodiment of the present invention. The stapler 1 of the present invention includes a main body 10, a firing mechanism 20 and a narrowing mechanism 30.

The main body 10 includes an inner space 11 and a nail opening 12; the firing mechanism 20 is arranged in the inner space 11 and includes a striker 21 for striking a nail 2 and a striker 21 that can drive the striker 21 relative to the nail The driving member 22 for the movement of the opening 12; the narrowing mechanism 30 is arranged on the main body 10 and includes a needle groove 31 opposite to the nail opening 12, at least one pusher 32 movable in the needle groove 31, and A force accumulating component 33 connected to the driving member 22 and driven by the driving member 22. The force accumulating component 33 includes a latching portion 332 and a force accumulating member 331 releasably blocked with the latching portion 332 The force accumulating member 331 can strike the at least one pushing member 32 toward the needle groove hole; wherein, when the driving member 22 drives the striking member 21 to move toward the nail opening 12, the driving member 22 drives the accumulating force The member 331 deforms and accumulates force, as shown in Figures 8 and 9; when the force accumulating member 331 is deformed to escape from the latching portion 332, the force accumulating member 331 instantaneously strikes the at least one pushing member 32 toward the nail driver The direction of the mouth 12 moves to allow the striker 21 to press against the nail needle 2, as shown in FIG. 10. Wherein, the force accumulating component 33 and the driving member 22 can be directly or indirectly connected. Thereby, no matter the operating force is large or small, the at least one pusher 32 can surely press down the staple 2 and the effect of flat stitch binding is good.

The accumulating component 33 further includes a stopper 333 pivoted on the main body 10 and a stopper 334 capable of engaging with the stopper 333. The stopper 333 is provided with the latching portion 332. When the position portion 334 is blocked by the blocking member 333, a predetermined distance is maintained between the latching portion 332 and the at least one pushing member 32, so that the latching The portion 332 can block the accumulating member 331 at a proper position, and the accumulating effect is better. Preferably, the stopper 333 is further extended with a resisting arm 335 opposite to the latching portion 332, and the force accumulating component 33 further includes an elastic member 336 elastically abutting between the resisting arm 335 and the body 10 , So that the blocking member 333 normally blocks and connects with the limiting portion 334. Preferably, the main body 10 is recessed with a evacuating portion 13 that can partially accommodate at least one of the accumulating member 331 and the latching portion 332. When the driving member 22 drives the accumulating member 331 away from the at least one When a pushing member 32 moves, the force accumulating member 331 repels the latching portion 332 toward the evacuating portion 13. The latching portion 332 is at least partially accommodated in the evacuating portion 13 to allow the force accumulating member 331 to pass over the latch The switch 332, the accumulating member 331 can be reset to the initial position without being deformed. In this embodiment, the evacuating portion 13 includes a first groove 131 adjacent to the accumulating member 331 and a second groove 132 adjacent to the latching portion 332. The depth of the first groove 131 is less than The depth of the second groove 132, the first groove 131 and the second groove 132 are connected, so that the accumulating member 331 and the latching portion 332 can be moved in and out of the avoiding portion 13 smoothly, and each The components can be arranged more closely. After the force accumulating member 331 hits the at least one pushing member 32, the driving member 22 can drive the force accumulating member 331 to move away from the at least one pushing member 32, and the force storing member 331 resists the stopper toward the avoiding portion 13 The member 333 compresses the elastic member 336, so that the blocking member 333 pivots to the latching portion 332 at least partially received in the second groove 132, thereby allowing the force accumulating member 331 to pass the latching portion 332 without being deformed And at least part of it is accommodated in the first groove 131 and returns to the initial position (as shown in FIG. 11); and when the force accumulating member 331 passes over the latching portion 332, the elastic member 336 pushes the blocking member immediately 333 to block with the limiting portion 334, to wait for the accumulating member 331 to be blocked again for accumulating force. In other embodiments, the depths of the first and second grooves may also be the same; the latching portion may also be fixedly arranged on the body and the force storage member deforms through the latching portion, which can also enable the storage The force member moves back and forth over the latch and bounces or resets to the initial position.

The narrowing mechanism 30 further includes at least one fixing member 34 located between the nail driving port 12 and the accumulating member 331. The at least one pushing member 32 is pivotally disposed on the at least one fixing member 34 so as to face The driving hole 12 swings relatively. One side of the at least one fixing member 34 facing the force storage member 331 is recessed with a side facing the at least one top A guide interface 341 extending from the pushing member 32, the force storage member 331 includes an impact portion 337 facing the at least one pushing member 32, and the impact portion 337 can move along the guide interface 341 toward the at least one pushing member 32 to It is ensured that the force accumulating member 331 can reliably hit the at least one pushing member 32. Preferably, the at least one pushing member 32 is provided with a first restricting portion 321, and the at least one fixing member 34 is provided with a first restricting portion 321 in a pivoting direction of the at least one pushing member 32. When the first restricting portion 321 abuts against the second restricting portion 342, the at least one pushing member 32 pivots to be flush or protrudes from the needle groove hole 31 to prevent the at least one An ejector 32 pivots excessively or insufficiently. In this embodiment, the narrowing mechanism 30 includes two fixed members 34 spaced apart and enclosing the needle groove 31, and two push members 32 pivoted between the two fixed members 34, the two The pusher 32 is arranged opposite to each other and can be used to press one of the pins of the nail 2 respectively. In other embodiments, the needle groove hole may also be formed by a fixing element and the main body, or the main body directly penetrates the needle groove hole, and the two pushing elements are pivoted on the main body and located in the needle groove. The same effect can be achieved in the grooves.

The narrowing mechanism 30 further includes a plurality of connecting pieces 35 connecting the two fixing pieces 34, each connecting piece 35 is provided with a flange 351, and the two fixing pieces 34 are respectively arranged on the flange 351 of each connecting piece 35 The two opposite sides can maintain a distance and facilitate assembly; each pusher 32 is pivoted between the two fixing members 34 by a connecting member 35; the first restricting portion 321 is integrally extended to each pusher 32 is a lug, and the second restricting portion 342 is a connecting piece 35 that can block the lug. The structure is simple and easy to process and assemble. In other embodiments, the first restricting portion may be additionally connected to each of the pushing members; the second restricting portion may also extend and protrude integrally on a fixing member; the first restricting portion and the second restricting The parts can also be respectively a guide protrusion and a guide recess that can be slidably engaged with each other. In detail, each of the pushing members 32 includes a pushing surface 322 facing the nailing opening 12 and capable of pressing the nail needle 2. The pushing surface 322 is a flat surface, a concave flat surface or a concave curved surface. In an embodiment, the abutting surface 322 is a flat surface, which can effectively flatten the two stitches toward the nail opening 12.

The stapler 1 further includes a link mechanism 40 arranged in the internal space, wherein the driving member 22 and the force accumulating component 33 are respectively connected to the link mechanism 40 in a linkage relationship. In detail, the link mechanism 40 includes a first link 41 and a second link 42 pivotally connected to the driving member 22. The second link 42 is pivoted to the body 10 with a pivot 421 and has A first end 422 and a second end 423 are located on two opposite sides of the pivot 421. The first end 422 is pivotally connected to the first connecting rod 41, and the second end 423 is connected to the force storage component 33. When the first link 41 pushes down against the first end 422, the second end 423 swings upward so that the force accumulating member 331 abuts against the latching portion 332 to deform and accumulate force. In this embodiment, the force storage member 331 is disposed on the second link 42 and extends toward the second end 423 to protrude the second link 42. The second end 423 of the second link 42 extends There is a shoulder 424, the shoulder 424 can stop the force accumulating part 331 in one of the impact directions of the accumulating part 331, so as to prevent the accumulating part 331 from excessively hitting the two pushing parts 32 to reduce the loss of components; The accumulating member 331 is an elastic piece, and the elastic piece turns and extends toward the latching portion 332 with a latching tongue 338 that can abut against the latching portion 332, and the striking portion 337 is located between the latching tongue 338 and the shoulder 424 Therefore, the elastic sheet is easy to deform and accumulate force and has a good effect of accumulating force. Furthermore, each of the first link 41 and the second link 42 includes two swing arms 411, 425 extending parallel to each other and a connecting portion 412, 426 connected between the two swing arms 411, 425, which can stabilize pivoting and not easily deflect laterally. Mobile and better structural strength. In other embodiments, the linkage mechanism can also be equipped with multiple linkages according to requirements; the accumulating member can also be arranged on the body or other positions according to the configuration requirements; the accumulating member can also be other elastic members.

1: stapler

10: body

20: firing mechanism

30: Narrowing mechanism

40: Linkage mechanism

Claims (10)

A stapler includes: a body, including an inner space and a nail opening; a firing mechanism, arranged in the inner space, including a striker for striking a staple and a striker that can drive the striker relative to the striker A driving member for the movement of the nail hole; a narrowing mechanism is arranged on the body, and includes a needle groove hole opposite to the nail driving hole, at least one pusher movable in the needle groove hole, and one connected with the driving member And a force accumulating component that can be driven by the driving member, the force accumulating component includes a latching portion and a force accumulating member that is releasably blocked with the latching portion, and the force accumulating member can hit the pin groove At least one pushing member; wherein, when the driving member drives the striking member to move toward the nailing opening, the driving member drives the force accumulating member to be blocked with the locking portion to deform and accumulate force; when the force accumulating member When the accumulating force is deformed to break away from the latching part, the accumulating member instantly strikes the at least one pushing member to move toward the nailing opening for pressing the nail needle against the striking member. The stapler according to claim 1, wherein the accumulating component further includes a stopper pivoted on the body and a limit part capable of engaging with the stopper, and the stopper is provided with the catch When the limiting portion blocks the stopper, a predetermined distance is maintained between the latching portion and the at least one pusher. The stapler according to claim 2, wherein the stopper is further provided with an abutting arm that is opposite to the latching portion, and the force accumulating component further includes an elasticity that springs between the abutting arm and the body So that the stopper is normally in contact with the limiting part. The stapler according to claim 1, wherein the main body is recessed with a evacuating part that can partially accommodate at least one of the accumulating member and the latching part, and when the driving member drives the accumulating member to move away When the at least one pushing member moves, the force storage member repels the latching portion toward the avoiding portion, and the latching portion is at least partially accommodated in the avoiding portion to allow the force storing member to pass over the latching portion. The stapler according to claim 1, wherein the narrowing mechanism further includes at least one fixing member located between the staple opening and the accumulating member, and the at least one pushing member can be pivotally arranged on the at least A fixed piece. The stapler according to claim 5, wherein one side of the at least one fixing member facing the force storage member is recessed with a guide interface extending toward the at least one pushing member, and the force storage member includes a side facing the at least one The impact part of the pusher, the impact part can move toward the at least one pusher along the guide interface. The stapler according to claim 1, further comprising a link mechanism provided in the internal space, wherein the driving member and the force accumulating component are respectively connected to the link mechanism in a linkage relationship, and the link mechanism includes A first link and a second link pivotally connected to the driving member, the second link is pivoted on the body with a pivot and has a first end and a first end located on two opposite sides of the pivot The second end, the first end is pivotally connected to the first connecting rod, and the second end is connected to the force accumulating component. The stapler according to claim 7, wherein the force storage member is provided on the second link and extends toward the second end to protrude the second link, and the second end of the second link is extended There is a retaining shoulder, and the retaining shoulder can stop the force accumulating member in an impact direction of the force accumulating member. The stapler according to any one of claims 1 to 8, wherein each of the pushing members includes an abutting surface facing the staple opening and capable of resisting the staple, and the abutting surface is a flat surface, Concave plane or concave arc surface. The stapler according to claim 6, wherein the accumulating component further includes a stopper pivoted on the body and a limit part capable of engaging with the stopper, and the stopper is provided with the catch Part, when the limiting part blocks the stopper, a predetermined distance is maintained between the detent part and the at least one pushing part; the stopper is further extended with a resisting arm opposite to the detent part , The force accumulating component further includes an elastic member elastically abutting between the abutting arm and the main body, so that the blocking member normally blocks the limiting portion; the main body is recessed with a portion that can partially accommodate the The avoiding part of at least one of the accumulating member and the latching part; the avoiding part includes a first groove adjacent to the accumulating member and a second groove adjacent to the latching part, the first concave The depth of the groove is less than the The depth of the second groove; the first groove communicates with the second groove; when the driving member drives the force storage member to move away from the at least one pushing member, the force storage member retreats toward the evacuating portion The latching portion, the latching portion is at least partially accommodated in the second groove to allow the force accumulating member to pass over the latching portion and at least partially accommodated in the first groove; the at least one pushing member is provided with a The first restricting portion, the at least one fixing member is provided with a second restricting portion that can interfere with the first restricting portion in a pivoting direction of the at least one pushing member, when the first restricting portion and the second restricting portion When the restricting portion abuts, the at least one pusher pivots to be flush or protrudes from the needle groove hole; the narrowing mechanism includes two fixed parts arranged at intervals and enclosing the needle groove hole, and two pivotally arranged at For the pusher between the two fixing parts, the two pushers are arranged opposite to each other and can respectively press against one of the pins of the nail; the narrowing mechanism further includes a plurality of connecting parts connecting the two fixing parts, each A flange is provided around the connecting piece, and the two fixing pieces are respectively arranged on two opposite sides of the flange of each connecting piece; each pushing piece is pivoted between the two fixing pieces by a connecting piece; the The first restricting portion is a lug extending integrally on each of the pushing elements, the second restricting portion is a connecting element that can block the lugs; each pushing element includes a lug facing the nail And can be used to press against the thrust surface of the nail pin, the thrust surface is a flat surface; the stapler further includes a link mechanism arranged in the internal space, the drive member and the force accumulating component are respectively connected to The linkage mechanism is in a linkage relationship; the linkage mechanism includes a first linkage and a second linkage pivotally connected to the driving member, the second linkage is pivoted to the body with a pivot and has a position A first end and a second end on two opposite sides of the pivot shaft. The first end is pivotally connected to the first link, and the second end is connected to the accumulating component; each of the first link and the second end The two connecting rods include two swing arms extending parallel to each other and a connecting part connected between the two swing arms; the force accumulating member is arranged on the second connecting rod and extending and protruding from the second connecting rod toward the second end, The second end of the second connecting rod is extended with a shoulder which can stop the force accumulating member in an impact direction of the force accumulating member; the force accumulating member is an elastic piece, and the elastic piece faces the card The switch portion is turned and extended with a latch that can abut against the latch, and the impact portion is located between the latch and the shoulder.

Images