JP3207060U - Stapler with movable staple pressing mechanism - Google Patents

Abstract

A stapler with a movable staple pressing mechanism that can be applied to staples having different leg lengths and that can effectively reduce the occurrence of poor binding. A stapler includes a base, a magazine assembly, an arm assembly, and a staple pressing mechanism. The magazine assembly is pivotally mounted on the base and has a magazine 21. The arm assembly is pivotally attached to the base, is disposed on the magazine assembly, and has a trigger lever 31 and a staple pressing tab 32. The staple pressing mechanism is mounted between the magazine assembly and the arm assembly, and includes a staple pressing base 41, a trigger elastic unit 42, and a restoration elastic unit 43. A restoring elastic unit is mounted between the arm assembly and the magazine assembly to provide a restoring elastic force for the staple pressing base. [Selection] Figure 2

Description

  The present invention relates to a stapler (stapler), and more particularly to a stapler with a movable staple pressing mechanism.

  When binding (stapling) with a conventional stapler, the user presses the trigger lever, presses the staple pressing tab downward, and presses the staple (needle). The leading staple loaded in the magazine of the conventional stapler is separated from the remaining staple, pressed toward the staple opening of the magazine by the staple pressing tab, and the leg of the staple pressed out of the staple opening is Folded on the anvil (clincher). The staples remaining in the conventional stapler are pushed forward by the staple pushing unit to replenish the missing staples pressed out of the staple opening, and the binding process is completed.

  The partial structure and operation process of the conventional large stapler 60 are shown in FIGS. The magazine 61 of the conventional large stapler 60 is applicable to staples having a long leg length, and the magazine 61 has a large storage space. When staples having a short leg length are loaded into the magazine 61 and used, a large gap exists on the staples. The staple pressing tab 63 of the conventional large stapler 60 can be pressed downward, and the leading staple 69 can be pressed toward the staple opening of the magazine 61 and separated. When the staple pressing tab 63 finishes separating the staple 69 and tries to move upward, the staple 69 is pulled by the staple pressing tab 63 and easily moved upward. This is because large gaps exist on the staples. The staple 69 rotates in the magazine 61 and becomes slanted and therefore cannot be bound continuously. Therefore, the conventional large stapler 60 can be applied only to the staple 69 having a uniform size.

  The partial structure and operation process of another conventional stapler 70 having a staple holder is shown in FIGS. 12, 12A, 13, 13A and 14. FIG. A staple holder is arranged for the staples 79 and these staples 79 are loaded across the staple holder. The legs of the staple 79 can be reliably moved between the staple holder and the magazine. In use, the distance D is still formed between the staple 79 and the staple pressing base 72. When the stapler 70 is used to bind a small number of staples 79, the staples 79 are rotated due to the pressing force of the staple pressing tab 74. The leg portion of the staple 79 is rotated and leaves the anvil range of the anvil of the conventional stapler 70. The staple 79 is displaced and pressed by the staple pressing tab 74, and the leg portion of the staple 79 cannot be bent into a predetermined shape.

  As described above, the conventional staplers 60 and 70 are not applicable to the staples 69 and 79 having different leg lengths. When staples 69 with short leg lengths are used, the staples 69 rotate and become easily skewed. This is because the staple pressing tab 74 is pulled upward, and the conventional stapler 60 cannot be bound continuously. Even when a conventional stapler 70 having a staple holder is used and bound to a small number of staples, the legs of the staple 79 are easily rotated due to the pressing force of the staple pressing tab and leave the anvil area of the anvil. Therefore, an inferior binding is easily made. Therefore, the above problem needs to be solved.

  In order to solve the problem that the conventional stapler cannot be applied to staples of different leg lengths, and a poor binding can be easily performed, the main object of the present invention can be applied to staples of different leg lengths, and a poor binding. It is an object of the present invention to provide a stapler with a movable staple pressing mechanism that can effectively reduce the occurrence of the above.

  A stapler with a movable staple pressing mechanism according to the present invention includes a base, a magazine assembly, an arm assembly, and a staple pressing mechanism.

  The magazine assembly is pivotally mounted on the base and includes a magazine. The arm assembly is pivotally mounted on the base and is disposed above the magazine assembly and includes a trigger lever and a staple pressing tab that is associated with the trigger lever. The staple pressing mechanism is mounted between the magazine assembly and the arm assembly, and includes a staple pressing base, a trigger elastic unit, and a restoration elastic unit. The staple pressing base is pivotally attached to the base and disposed in the magazine. The trigger elastic unit is mounted between the trigger lever and the staple pressing base. A restoring elastic unit is mounted between the arm assembly and the magazine assembly and provides a restoring elastic force for the staple pressing base.

  From the above description, when the stapler with the movable staple pressing mechanism of the present invention is in use, the staple pressing can be pressed downward by the trigger elastic unit to press the staple loaded in the magazine. When the user finishes the binding and releases the trigger lever, the staple pressing base is kept pressing the staples, and no space can be formed between the staples and the staple pressing base, so the staples are It does not rotate. Therefore, the staple is not rotated by being driven upward by the staple pressing tab. Further, when the arm assembly is pivoted upward and returned to the original position, the staple pressing base is driven by the recovery elastic force of the recovery elastic unit to return to the original position, thereby the movable staple pressing mechanism of the present invention is provided. Restore the stapler to its original state. Therefore, the stapler with a movable staple pressing mechanism according to the present invention can reduce the occurrence of an inferior binding of the conventional stapler by the staple pressing base for pressing the staples. Furthermore, the stapler with movable staple pressing mechanism of the present invention can be applied to staples having different leg lengths, and therefore the stapler of the present invention has a wider range of operability.

  Other objects, advantages and novel features of the present invention will become more apparent from the following detailed description when taken in conjunction with the drawings.

FIG. 1 is a perspective view of a first embodiment of a stapler with a movable staple pressing mechanism according to the present invention. FIG. 2 is a cross-sectional perspective view of the stapler in FIG. FIG. 3 is a partially enlarged perspective view of the stapler in FIG. FIG. 4 is a partial cross-sectional side view of the stapler in FIG. FIG. 5 shows an operation process of the stapler in FIG. FIG. 6 is a perspective view of a second embodiment of the stapler with a movable staple pressing mechanism according to the present invention. FIG. 7 is a partially enlarged perspective view of the stapler in FIG. 8 is a partial cross-sectional side view of the stapler in FIG. FIG. 9 shows an operation process of the stapler in FIG. FIG. 10 is an operation process of a large stapler according to the prior art. FIG. 11 is an operation process of a large stapler according to the prior art. FIG. 12 is a process of operation of another stapler with staple holder according to the prior art. FIG. 12A is an operational process of another stapler with staple holder according to the prior art. FIG. 13 is an operation process of another stapler with staple holder according to the prior art. FIG. 13A is the process of operation of another stapler with staple holder according to the prior art. FIG. 14 is a process of operation of another stapler with staple holder according to the prior art.

  Hereinafter, a preferred embodiment of a stapler with a movable staple pressing mechanism according to the present invention will be described in detail with reference to the drawings.

  1 to 4, a first embodiment of a stapler with a movable staple pressing mechanism according to the present invention includes a base 10, a magazine assembly 20, an arm assembly 30, and a staple pressing mechanism 40. The base 10 includes an anvil structure 11 disposed at the front end of the base 10. The pivot unit 12 is mounted on the rear end portion of the magazine assembly 20 and the rear end portion of the base 10, so that the magazine assembly 20 is pivotally attached to the base 10 by the pivot unit 12. The magazine assembly 20 includes a magazine 21. A staple opening 22 is formed at the bottom of the front end of the magazine 21, and the position of the staple opening 22 corresponds to the position of the anvil structure 11.

  The arm assembly 30 is disposed above the magazine assembly 20, and the rear end portion of the arm assembly 30 is pivotally supported on the rear end portion of the base 10 by the pivot unit 12. The arm assembly 30 includes a trigger lever 31, and the trigger lever 31 is pivotally attached to the base 10 by a rear end portion of the trigger lever 31. The arm assembly 30 includes a staple pressing tab 32 that is combined with the front end of the trigger lever 31, and the position of the staple pressing tab 32 corresponds to the position of the staple opening 22 and the anvil structure 11. The staple pressing tab 32 is actuated to push one of the staples loaded in the magazine 21 out of the staple opening 22 and downward toward the anvil structure 11. Further, the arm assembly 30 includes an auxiliary lever 33. The rear end portion of the auxiliary lever 33 is pivotally attached to the base 10 and is disposed above the trigger lever 31.

  The auxiliary lever 33 can be combined with a plastic or metal top cover and assists the user to press the stapler. In use, since the user presses the arm assembly 30 downward, the auxiliary lever 33 is pivoted with respect to the base 10 and moved downward to drive the trigger lever 31 and pivot downward to achieve a labor saving effect. To do. The base 10, the magazine assembly 20 and the arm assembly 30 may be conventional, and the structures of the base 10, the magazine assembly 20 and the arm assembly 30 are not considered in the present invention.

  The staple pressing mechanism 40 is mounted between the magazine assembly 20 and the arm assembly 30 and includes a staple pressing base 41, a trigger elastic unit 42, and a restoration elastic unit 43. The staple pressing base 41 is pivotally mounted on the base 10 and is disposed in the magazine 21. The rear end portion of the staple pressing base 41 is pivotally attached to the pivot unit 12 of the base 10 and can be pivotally attached to the magazine 21. Still referring to FIG. 3, an elongated slot 321 is formed through an intermediate position on the staple pressing tab 32. The slot 321 has two sides 324 on the left and right sides of the upper part 322, the bottom part 323, and the slot 321, respectively. A protrusion 411 is formed at the front end portion of the staple pressing base 41 and protrudes from the front end portion of the staple pressing base 41, is inserted through the slot 321, and moves relatively between the upper portion 322 and the bottom portion 323 of the slot 321. To do. The slot 321 operates to limit the pivoting of the trigger lever 31 relative to the magazine assembly 20.

  The required amount of the slot 321 and the protrusion 411 is not limited in the present invention. The staple pressing tab 32 may include two slots formed on both sides of the staple pressing tab 32, respectively. The staple pressing base 41 can include two protrusions that are respectively formed on both sides of the front end portion of the staple pressing base 41 and are inserted through the plurality of slots of the staple pressing tab 32.

  The trigger lever 31 has a bottom surface, and the staple pressing base 41 has an upper surface. The trigger elastic unit 42 is mounted between the bottom surface of the trigger lever 31 and the top surface of the staple pressing base 41. The trigger elastic unit 42 can be composed of a compression spring or a leaf spring. Preferably, the trigger elastic unit 42 is a compression spring. When the auxiliary lever 33 and the trigger lever 31 are forced downward and pivoted by the user and moved downward, the trigger elastic unit 42 is compressed and drives the staple pressing base 41 to pivot downward.

  The restoring elastic unit 43 is mounted between the arm assembly 30 and the magazine assembly 20 to provide a restoring elastic force for the staple pressing base 41. The restoration elastic unit 43 has a first end 431 and a second end 432 opposite to the first end 431. The first end 431 is attached to one of the staple pressing base 41 and the trigger lever 31. The second end 432 is attached to the magazine 21. When the trigger lever 31 and the staple pressing base 41 are pivoted downward, the first end 431 of the recovery elastic unit 43 moves together with one of the staple pressing base 41 and the trigger lever 31. When the trigger lever 31 is released from the user, the recovery elastic unit 43 applies a recovery elastic force via the second end 432.

  Referring to FIG. 2, in the first embodiment, the restoration elastic unit 43 is an elongated leaf spring. The first end 431 is disposed at the rear end of the recovery elastic unit 43, and the second end 432 is disposed at the front end of the recovery elastic unit 43. The first end 431 is attached to the staple pressing base 41. Preferably, the first end 431 is riveted to the staple pressing base 41, and the second end 432 is mounted across the magazine 21 and abuts on the magazine 21.

  The operating state of the first embodiment is shown in FIGS. Before the binding, the restoration elastic unit 43 is flush with the staple pressing base 41, and the staple pressing base 41 is parallel to the magazine 21. During the binding, the arm assembly 30 is pressed downward by the user, so that it is pivoted relative to the base 10 and moved downward. Since the staple pressing base 41 can pivot with respect to the magazine 21, the trigger lever 31 compresses the trigger elastic unit 42 and drives the staple pressing base 41 to pivot downward with respect to the magazine 21. The staple loaded in the magazine 21 is pressed. At the same time, the first end 431 of the restoration elastic unit 43 moves downward together with the staple pressing base 41, and the second end 432 is restricted on the magazine 21 and restricted in movement, so that the restoration elastic unit 43 is restored. Can save the restoring elastic force. When the user further applies force to the arm assembly 30, the arm assembly 30 and the magazine assembly 20 instantaneously fall toward the anvil structure 11 of the base 10, so that one of the staples loaded in the magazine 21 is a staple pressing tab. It is extruded from the magazine 21 by 32 and bent into a predetermined shape by the anvil structure 11.

  After binding, the arm assembly 30 is moved away from the user, and the arm assembly 30 is pivoted upward to return to the original position. Further, the staple pressing base 41 is driven and pivoted upward, and is returned to its original position by the first end 431 of the restoration elastic unit 43. When the staple pressing tab 32 moves upward, the plurality of staples loaded in the magazine 21 are kept pressed by the staple pressing base 41, so that the plurality of staples loaded in the magazine 21 are held in the staple pressing tab. It is driven by 32 and does not rotate. Even when staples having a short leg length are loaded in the magazine 21, the staples can also be reliably pressed by the staple pressing base 41. Therefore, the stapler with a moving staple pressing mechanism of the present invention can be applied to staples having different leg lengths. In addition, the staples loaded in the magazine 21 are not rotated, so that the staples can be bound continuously, reducing the occurrence of inferior binding in the conventional stapler.

  A second embodiment of the stapler with a moving staple pressing mechanism according to the present invention is shown in FIGS. The second embodiment is different from the first embodiment due to the structure of the staple pressing mechanism 40A. The recovery elastic unit 43A of the staple pressing mechanism 40A is a compression spring and has an upper end portion and a bottom end portion. The first end 431 </ b> A is formed at the upper end of the recovery elastic unit 43 </ b> A and is connected to the trigger lever 31. The second end 432A is formed at the bottom end of the restoration elastic unit 43A and is mounted on the magazine 21. The restoration elastic unit 43A is elastically connected between the magazine 21 and the trigger lever 31 to provide a staple restoration elastic force for the staple pressing base 41.

  Still referring to FIG. 7, the protrusion 411 on the front end of the staple pressing base 41 is inserted through the slot 321 of the staple pressing tab 32 and moves relatively between the upper portion 322 and the bottom portion 323 of the slot 321. To do. The pivoting of the trigger lever 31 relative to the magazine 21 is limited by the slot 321 of the staple pressing tab 32. When the recovery elastic unit 43A provides a recovery elastic force for the trigger lever 31 and drives the trigger lever 31 to move upward, the trigger lever 31 causes the protrusion 411 to be moved by the bottom 323 of the slot 321 of the staple pressing tab 32. Pulling upward, the staple pressing base 41 moves upward and returns to its original position. Preferably, the recovery elastic unit 43A further includes a gasket 435 that is disposed on the bottom end of the recovery elastic body 43A, is mounted over the magazine 21, and contacts the magazine 21. Therefore, the restoration elastic unit 43A can be reliably brought into contact with the magazine 21 by the gasket 435, and the restoration elastic unit 43A provides a stable and reliable restoration elastic force for the staple pressing base 41 when the restoration elastic unit 43A is compressed. Can be provided.

  Referring to FIG. 8, the trigger lever 31 is pushed upward by the elastic force of the trigger elastic unit 42 before binding. The staple pressing tab 32 pushes the protruding portion 411 by the bottom 323 of the slot 321 and pulls the staple pressing base 41 upward. Therefore, the staple pressing base 41 is flush with the magazine 21 and contacts the staple loaded in the magazine 21. Never do. Still referring to FIG. 9, during binding, the arm assembly 30 is pivoted relative to the base 10 and moved downward as the user presses downward on the arm assembly 30.

  When the trigger lever 31 is pressed downward, the trigger elastic unit 42 is compressed and drives the staple pressing base 41 to pivot downward relative to the magazine 21 to press the staple loaded in the magazine 21. At the same time, the second end 432A of the recovery elastic unit 43A is restricted on the magazine 21 and the movement is restricted, and the first end 431A is compressed to store the recovery elastic force. Further, the user presses the arm assembly 30 and performs binding. After binding, the arm assembly 30 is moved away from the user, and the recovery elastic unit 43A provides a recovery elastic force for the trigger lever 31 and drives the trigger lever 31 to pivot upward.

  When the trigger lever 31 is pivoted upward, the bottom 323 of the slot 321 of the staple pressing tab 32 pulls the protrusion 411 of the staple pressing base 41 upward, and drives the staple pressing base 41 to move upward, As shown in FIG. 8, the staple pressing base 41 can pivot upward to return to the original position. In the binding, the staples loaded in the magazine 21 are kept pressed by the staple pressing base 41, so that the staples loaded in the magazine 21 are rotationally driven by the upward movement of the staple pressing tab 32. There is nothing. Even when staples having a short leg length are loaded in the magazine 21, the staples can be reliably pressed by the staple pressing base 41. Therefore, the stapler with a movable staple pressing mechanism according to the present invention can be applied to staples having different leg lengths. Further, the staples loaded in the magazine 21 are not rotated, so that the staples can be bound continuously, reducing the occurrence of poor binding.

  Therefore, when the stapler with the movable staple pressing mechanism of the present invention is in use, the staple pressing base 41 can be pressed downward by the trigger elastic unit 42 and presses the stapler downward. The staple pressing tab 32 can press the leading staple out of the staple opening 22 of the magazine 21 and finishes the binding. Then, the arm assembly 30 is released from the user, and the staple pressing tab 32 is separated from the magazine 21 together with the trigger lever 31. At the same time, the staple pressing base 41 is maintained in a state of pressing the staple loaded in the magazine 21, so that no space is formed between the staple and the staple pressing base 41, and the staple is rotated. There is nothing. Therefore, when the staple pressing tab 32 moves upward, the staple is not driven to rotate. The restoring elastic units 43 and 43A are mounted between the arm assembly 30 and the magazine assembly 20 to provide a restoring elastic force for the staple pressing base 41, so that the staple pressing base 41 can be moved upward and returned to its original position. Return. Therefore, the stapler with a movable staple pressing mechanism of the present invention can use the staple pressing mechanisms 40 and 40A, presses the staples during the binding operation, and reduces the occurrence of the inferior binding of the conventional stapler. The stapler of the present invention can be applied to staples of different leg lengths, so that the stapler with a movable staple pressing mechanism of the present invention can be used as a portable stapler of normal size or a long leg length staple or 70,100. It can be used as a large stapler applicable to multi-sheet staples of sheets or large quantities of paper.

  Although some features and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only and modifications are notable in particular in terms of part shape, size and arrangement. It can be done in detail in the matter and can be carried out within the principles of the invention over the full scope indicated by the broad general meaning of the terms expressed in the appended utility model registration claims.

DESCRIPTION OF SYMBOLS 10 ... Base 11 ... Anvil structure 12 ... Pivot unit 20 ... Magazine assembly 21 ... Magazine 22 ... Staple opening 30 ... Arm assembly 31 ... Trigger lever 32- .... Staple pressing tab 33 ... Auxiliary lever 321 ... Slot 322 ... Upper part 323 ... Bottom part 324 ... Side 40, 40A ... Staple pressing mechanism 41 ... Staple pressing base 42 ..Trigger elastic unit 43, 43A ... Restoration elastic unit 411 ... Projection 431, 431A ... First end 432, 432A ... Second end

Claims (10)

Base and
A magazine assembly pivotally mounted on the base and comprising a magazine;
An arm assembly pivotally mounted on the base and disposed above the magazine assembly, the arm assembly comprising:
Trigger lever,
A staple pressing tab combined with the trigger lever,
A staple pressing mechanism mounted between the magazine assembly and the arm assembly, the staple pressing mechanism comprising:
A staple pressing base pivotally mounted on the base and disposed in the magazine;
A trigger elastic unit mounted between the trigger lever and the staple pressing base;
A stapler with a movable staple pressing mechanism, comprising: a recovery elastic unit mounted between the arm assembly and the magazine assembly and providing a recovery elastic force for the staple pressing base. The restoring elastic unit has a first end and a second end opposite to the first end;
2. The movable staple pressing mechanism according to claim 1, wherein the first end portion is attached to one of the staple pressing base and the trigger lever, and the second end portion is attached to the magazine. With stapler.   The stapler with a movable staple pressing mechanism according to claim 2, wherein the restoration elastic unit is an elongated leaf spring.   The first end is disposed at the rear end of the recovery elastic unit, the second end is disposed at the front end of the recovery elastic unit, and the first end is attached to the staple pressing base. The stapler with a movable staple pressing mechanism according to claim 3, wherein the stapler has a movable staple pressing mechanism.   The stapler with a movable staple pressing mechanism according to claim 4, wherein the first end portion is riveted to the staple pressing base.   The stapler with a movable staple pressing mechanism according to claim 4, wherein the second end portion is mounted over the magazine and is in contact with the magazine.   The stapler with a movable staple pressing mechanism according to claim 1, wherein the trigger elastic unit is a compression spring.   The restoration elastic unit has an upper end and a bottom end, and the first end and the second end are formed at the upper end and the bottom end of the restoration elastic unit, respectively. The stapler with a movable staple pressing mechanism according to claim 2, wherein an end of the stapler is attached to the trigger lever.   The movable staple pressing mechanism according to claim 8, wherein the restoration elastic unit includes a gasket that is disposed at a bottom end portion of the restoration elastic unit, is mounted across the magazine, and abuts against the magazine. With stapler. At least one slot is formed through the staple pressing tab, each of the at least one slot having a top and a bottom;
At least one protrusion is formed on the staple pressing base, each of the at least one protrusion being inserted through each of the at least one slot, and a corresponding slot between the top and the bottom. The stapler with a movable staple pressing mechanism according to any one of claims 1 to 9, wherein the stapler moves relative to the stapler.

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