Stapler and stapler having the same

Abstract

The present application discloses a staple pusher, comprising a staple pusher body, a staple blocking part is arranged on the front end surface of the staple pusher body, the outer surface of the staple blocking part is in contact with the inner surface of the staple, the front end surface of the staple blocking part comprises a sliding surface for guiding the staple to slide downwards, the distance between the front end of the staple blocking part and the front end surface of the staple pusher is less than or equal to the thickness of a staple, and the height of the staple blocking part is less than the inner height of the staple. The present application also discloses a stapler comprising the staple pusher. The present application is characterized in that the staple blocking part is arranged on the front end of the staple pusher, so that the rear end and the inner surface of the staple are in contact with the staple pusher, and therefore, when the front ends of the remaining two staples are subjected to force, the last staple will not deform inward, so that the last staple can be pressed out smoothly, and the remaining two last staples will not be stuck.

Description

Technical Field

[0001] This invention relates to a stapler, and more particularly to a staple pusher and a stapler having the staple pusher. Background Technology

[0002] A typical structure of a conventional stapler includes a top cover, a staple path assembly, and a base. The top cover and the tail end of the staple path assembly are rotatably fixed to the base. The staple path assembly includes staple paths, a pressure plate, and a staple pusher. The staple pusher is positioned in the staple path to restrain and push the staples. The tail end of the pressure plate is rotatably connected to the tail end of the staple path, and the front end of the pressure plate is aligned with the staple exit point at the front end of the staple path. When using the stapler, pressing the top cover moves the pressure plate to push the staples out of the staple path assembly, thus completing the binding process.

[0003] The existing staple pusher has a connecting part on its main body, which is connected to the staple pressure plate via a spring. The staple pressure plate moves the pusher along the staple track, thus pushing the staple forward and preventing it from moving during binding. The staple pressure plate then presses down, pushing the staple out of the staple track's exit point. When a staple needs to be inserted, the staple pressure plate rotates upward, causing the staple pusher to move backward, creating space at the front end of the staple track for inserting the staple.

[0004] The main body of the existing staple pusher is generally square, with the front end face being a vertical plane. The two sides of the vertical plane mate with the two sides of the staple, and they abut against each other during normal use and when stapled. Therefore, although the front end of the main body can push the staple forward well and push it out smoothly from the staple presser plate, when there are only two staples left, because each staple is usually glued together, the remaining two staples are often pushed out of the staple outlet together, causing the stapler to jam. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a nail pusher that does not jam the nails.

[0006] The present invention also provides a stapler having the above-mentioned staple pusher, which prevents staples from getting stuck.

[0007] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0008] A staple pusher, comprising a staple pusher body, characterized in that: a staple stop portion extends forward from each of the two end faces of the front end of the staple pusher body, the outer side of the staple stop portion abuts against the inner side of the staple, the front end face of the staple stop portion includes a sliding surface for guiding the staple to slide downward from the top, the horizontal distance between the foremost front end of the front end face of the staple stop portion and the front end face of the staple pusher is less than or equal to the thickness of a staple, and the height of the staple stop portion is less than the internal height of the staple.

[0009] Even better, the sliding surface of the front end face of the staple stop is a slope or an arc surface, so that when the last staple is attached, the staple can still move more smoothly along the slope or arc surface, causing the staple pusher to move backward and thus come out smoothly from the staple outlet to complete the binding.

[0010] Even better, the staple stop is formed by a staple stop member fixed to the front end of the staple pusher. The two outer sides of the staple stop member abut against the inner side of the staple. The horizontal distance between the frontmost front end of the staple stop member and the front end of the staple pusher is less than or equal to the thickness of a staple. The height of the staple stop member is less than the internal height of the staple, which facilitates the manufacture of the staple pusher.

[0011] More specifically, there are two stopper pins, which are fixed on both sides of the pusher. This way, the middle part of the stopper pin can be omitted, saving materials.

[0012] Even better, the staple stop is formed by a staple stop member fixed to the front of the staple track. The two outer sides of the staple stop member abut against the inner side of the staple. The distance between the frontmost end of the front end face of the staple stop member and the front end of the staple track is not less than the thickness of one staple and not more than the thickness of two staples. The height of the staple stop member is less than the internal height of the staple. This structure is simple.

[0013] Even better, there are two staple stops, which are fixed on the two sides of the front of the staple track, with the outer side of the staple stop abutting against the inner side of the staple, thus saving material.

[0014] The present invention also provides a stapler including a staple pusher, characterized in that: having the staple pusher prevents the stapler from jamming.

[0015] Compared with the prior art, the present invention has the following advantages: by setting a stop part at the front end of each staple pusher that abuts against the inside of the staple, the rear end and the inside of the staple abut against the staple pusher. Therefore, when the front ends of the remaining two staples are subjected to force, the last staple will not deform inward, thus the last staple can be pressed out smoothly without the last two staples getting stuck. Attached Figure Description

[0016] Figure 1 This is a side view of the staple pusher of the stapler in Embodiment 1 of the present invention.

[0017] Figure 2 This is a perspective view of the nail pusher according to Embodiment 1 of the present invention.

[0018] Figure 3 This is a perspective view of the nail pusher of Embodiment 1 of the present invention from another angle.

[0019] Figure 4This is a perspective view of the nail pusher of Embodiment 2 of the present invention.

[0020] Figure 5 , Figure 6 This is a perspective view of the nail pusher of Embodiment 3 of the present invention.

[0021] Figure 7 This is an exploded structural diagram of a stapler including the staple pusher of Embodiment 1 of the present invention. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] For ease of description, the directional terms used below, such as front, back, tail, top, etc., are used to describe a specific direction and are not intended to limit the scope of protection of this invention.

[0024] Example 1.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, a staple stop 45 extends forward from the end face 43 on each of the two front sides of the staple pusher 4 body. The outer side 41 of the staple stop 45 abuts against the inner side 31 of the staple 3. The front end face 42 of the staple stop 45 includes a sliding surface 421 that guides the staple to slide downward from the top. The sliding surface 421 is provided mainly to enable the staple to slide downward smoothly.

[0026] In this embodiment, the sliding surface 421 of the staple stop part 45 is an arc surface. When the stapler is binding, the staple 3 moves with the arc surface, which is more conducive to the downward movement of the staple 3. In this way, when the last staple is bound, it can still come out smoothly from the staple outlet to complete the binding.

[0027] The horizontal distance H between the frontmost end of the front end face 42 of the aforementioned staple stop 45 and the front end face 43 of the staple pusher 4 is less than or equal to the thickness of one staple. In this embodiment, it is specifically less than the thickness of one staple. In this way, when only one staple 3 remains, if the front end of the staple stop 45 does not abut against the front end of the staple path or just abuts against the front end of the staple path, the staple 3 can still be abutted by the front end faces 43 on both sides of the staple pusher 4 to restrict its movement, so that the staple can be stably pressed out of the staple outlet by the staple presser plate. If the distance between the frontmost end of the front end face 42 of the staple stop 45 and the front end face 43 of the staple pusher 4 is greater than the thickness of a staple, then when the last staple 3 remains, since the front end face 42 of the staple stop 45 has already reached the front end of the staple path, and the front end face 43 of the staple pusher 4 has failed to hold the staple 3, the staple 3 is prone to wobbling due to the gap and cannot be properly pressed out from the exit of the staple path, thus failing to be properly bound.

[0028] The aforementioned nail pusher 4 is also provided with a connecting part 44, which is connected to the nail presser plate 2 via a traction member (see...). Figure 4 The stapler plate 2 moves, causing the staple pusher 4 to move along the staple path. During binding, this pushes the staple forward and prevents it from moving further. The stapler plate then presses down, forcing the staple out of the staple path. When a staple needs to be inserted, the stapler plate rotates upward, causing the staple pusher to move backward, creating space at the front of the staple path for inserting the staple. Since this type of binding structure is common and irrelevant to the purpose of this invention, it will not be discussed further here.

[0029] Example 2.

[0030] like Figure 4 The diagram shows a different type of nail pusher 4, which is basically the same as that in Example 1 except for the nail stop part 45 and the shape of the main body.

[0031] In this embodiment, the upper sliding surface 422 of the front end face 42 of the staple stop 45 is curved, and the lower part is flat. The curved sliding surface makes it easier for the staple to slide.

[0032] The main body of the staple pusher 4 can be of various types. Its main function is to restrict and push the staples. Therefore, apart from the features of the staple pusher 4, other parts of the staple pusher are not very important and are not limited by the above embodiments.

[0033] Example 3.

[0034] In this embodiment, the nail-stopping part of the main body of the nail pusher 4 is formed by providing a nail-stopping member 46, which is fixed to the front end of the nail pusher 4. Figure 5 Alternatively, it can be fixed to the front end face 43 of the pusher 4, see Figure 6 The two sides of the staple stop 46 form a staple stop portion with the front end 42 of the staple pusher 4. The outer side 461 of the two sides of the staple stop 46 abuts against the inner side 31 of the staple 3. The front end face of the staple stop 46 includes a sliding surface 462 that guides the staple to slide downward from the top. The horizontal distance between the front end of the sliding surface 462 of the front end face of the staple stop 46 and the front end face 42 of the staple pusher is less than or equal to the thickness of a staple. The height of the staple stop 46 is less than the internal height of the staple.

[0035] The relationship between the aforementioned nail stopper 46 and the main body of the nail pusher 4 can be referred to in the detailed description in Embodiment 1, and the invention is substantially similar.

[0036] Of course, there can be two nail stops, which are placed on the two sides of the nail pusher 4, similar to the nail stop part 45 in front. Compared with one nail stop 46, the middle part of the nail stop 46 can be omitted, which can save materials.

[0037] In the above embodiments, the nail-stopping part 45 and the nail-stopping component 46 can be connected to the nail pusher 4 by means of bonding, welding or other methods, or they can be integrally formed with the nail pusher 4.

[0038] Example 4.

[0039] like Figure 7 As shown, the staple pushers of Examples 1 and 2 can both be applied to staplers. The stapler includes an upper cover 1, a staple pressure plate 2, a staple path 6, and a base 7. The upper cover 1, the staple pressure plate 2, and the tail ends of the staple path 6 are rotatably fixed to the base 7 by pins 5. The staple pusher 4 is placed in the staple path 6 to restrict and push the staples 3. The front end of the staple pressure plate 2 is aligned with the staple outlet at the front end of the staple path 6 (not shown in the figure).

[0040] Apart from the staple pusher installed in the staple path, other parts of the stapler can be changed, and other parts can be added to enrich or change the structure of the stapler. For example, a base plate sleeve can be added to the base plate, levers or other parts can be set on the pressure plate, or other methods can be adopted.

Claims

1. A nail pusher, comprising a nail pusher body, characterized in that: On each of the two end faces of the front end of the staple pusher body, a staple stop extends forward. The outer side of the staple stop abuts against the inner side of the staple. The front end face of the staple stop includes a sliding surface that guides the staple to slide downward from the top. The horizontal distance between the foremost point of the front end face of the staple stop and the front end face of the staple pusher is less than or equal to the thickness of a staple. The height of the staple stop is less than the internal height of the staple. The staple stop is formed by a staple stop member fixed to the front end of the staple pusher. The two outer sides of the staple stop member abut against the inner side of the staple. The horizontal distance between the foremost point of the front end face of the staple stop member and the front end face of the staple pusher is less than or equal to the thickness of a staple. The height of the staple stop member is less than the internal height of the staple.

2. The nail pusher according to claim 1, characterized in that: The sliding surface of the front end face of the stopper is an inclined surface or an arc surface.

3. The nail pusher according to claim 1, characterized in that: There are two nail-stopping components, which are fixed on both sides of the nail pusher.

4. A stapler, including a staple pusher, characterized in that: It includes the nail pusher as described in any one of claims 1 to 3.

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