JPH04106180U - stapler - Google Patents

Abstract

(57) [Summary] [Structure] The tip of the end of the pusher link 17 that transmits the rotation of the handle 4 to the pusher 8 is slid from the rear end of the connecting needle 5 loaded in a floating state when the handle 4 is closed. A slope portion 22 that can be ascended is formed. [Effect] If the connecting needle 5 is loaded with it floating above the bottom of the storage section 6, the tip of the pusher link slides forward as the handle rotates in the closing direction, and the sloped part of the connecting needle Since it slides up from the rear end and moves beyond the connection needle, the return movement of the pusher link and the rotation of the handle can be performed without any hindrance.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention moves back the pusher for pressing the connecting needle at the same time when the handle is released. Regarding staplers equipped with a pusher retraction mechanism that creates a loading space for the connecting needle in the binding section. do.

[Prior art]

0002 In staplers with this type of so-called one-touch opening mechanism, When opening the handle and loading the connecting needle into the magazine, the connecting needle may not be in the correct position. If the magazine is loaded with the magazine floating above the bottom, close the handle and close the handle. Connecting needle whose tip is raised when the pusher link returns after retracting the pusher It engages with the rear end and cannot be moved back, making it impossible to close and turn the handle. If the force to close the handle is large, the pusher link may fold. There was a risk of an accident resulting in bending or damage.

0003

[Purpose of invention]

This invention solves the above-mentioned drawbacks, and in particular, even if the connecting needle is loaded in a floating state, the To provide a stapler capable of returning and moving a stapler link without any trouble. is its purpose.

0004

[Means to achieve the purpose]

In order to achieve the above object, the stapler according to the present invention can be opened by rotating the handle. When the needle is released, it engages with the pusher pressing the connecting needle and moves the pusher backward; A stapler equipped with a pusher retraction mechanism that creates a loading space for connecting needles in the magazine. the tip of the end of the pusher link that transmits the rotation of the handle to the pusher. When the above-mentioned handle is closed, the connected needle loaded in a floating state slides up from the rear end. It is characterized by forming a slope part of 100 degrees.

[0005]

[Function and effect of the idea]

In the above configuration, when the handle is rotated in the opening direction, the pusher retraction mechanism The pusher retracts and the front of the magazine compartment is automatically opened to allow the connecting needle to be loaded. A filling space is formed. Therefore, after loading the connecting needle into the above space, close the handle. When rotated in the same direction, the pusher slides forward and engages the rear end of the connecting needle on the way. and press it. By the way, the connecting needle is lifted up from the bottom of the storage compartment. If the handle is loaded in the As the tip of the hook slides forward, the slanted surface rubs up against the rear end of the connecting needle. Move beyond the top. Therefore, the return movement of the pusher link and the rotation of the handle are movements can be performed without any problems.

[0006]

【Example】

Embodiments of the present invention will be described below with reference to the drawings.

[0007] Figure 1 is a longitudinal cross-sectional view of a stapler, which consists of a base 1 and a support shaft 2 at the rear end. It is composed of a magazine 3 and a handle 4 which are rotatably supported by a shaft.

[0008] The magazine 3 is formed in a U-shape, and has a storage section 6 for the connecting needle 5 inside. Ru. A rod-shaped pusher guide 7 is arranged along the longitudinal center of the storage section 6, and A pusher 8 is slidably provided along the pusher guide 7. Pusher 8 is on top It has a head that protrudes in the direction, and is supported by a spring 9 wound around the pusher guide 7. The connecting needle 5 in the storage section 6 is always urged forward. Also, both side walls of magazine 3 A guide groove 10 is formed along the longitudinal direction. In addition, the front end of magazine 3 At the bottom, there is an opening 12 through which the leading needle of the connecting needle 5 and the driver 11 for driving it pass. is formed.

[0009] The driver 11 is fixed to the tip of the handle 4. Also, handle 4 A needle cover 13 is arranged on the back side. The needle cover 13 is formed in a U-shape, An engagement groove 14 that engages with the support shaft 2 is formed at one end, and a driver 1 is formed at the other end. A protrusion 15 is formed that engages with a rectangular opening provided in 1. more needles A leaf spring 16 is disposed between the upper surface of the cover 13 and the lower surface of the handle 4, and the leaf spring 16 16, both ends of the needle cover 13 are elastically attached to the opening of the driver 11 and the support shaft 2, respectively. The needle cover 13 is configured to follow the rotation of the handle 4. It is.

0010 Next, a pusher link 17 is rotatably attached to the rear of the needle cover 13. It is. As shown in Fig. 2, this pusher link 17 is split into two at the back. It protrudes outward at the rear end and is inserted into the through hole 18 in both side walls of the needle cover 13. A protruding shaft 19 is formed. The tip side engages with the head 8a of the pusher 8. A protrusion 21 is formed that engages with the opening 20 and the guide groove 10 on both side walls of the magazine 3. At the same time, the tip is bent upward to form a sloped portion 22.

[0011] When the handle 4 is rotated to open, the needle cover 13 also rotates upward, so the pusher Since the tip of the link 17 retreats and engages with the head 8a of the pusher 8 on the way, The rotation of the handle 4 is transmitted to the pusher 8, and the pusher 8 also resists the bias of the spring 9. fall back. Therefore, the needle cover 13, pusher link 17 and pusher 8 A pusher retraction mechanism is configured.

0012 In the above configuration, all the needles in the storage section 6 of the connecting needles 5 are consumed during the binding operation. , or when the remaining amount is low and it is necessary to reload the connecting needle 5, press the handle. When 4 is rotated in the opening direction, the pusher 8 is moved by the pusher retraction mechanism as described above. When the magazine 3 is moved backward, the front part of the storage section 6 of the magazine 3 is automatically opened to create a loading space for the connecting needle 5. is formed. Therefore, after loading the connecting needle 5 into the space, the handle 4 is closed. When the pusher 8 is rotated in the direction, the pusher 8 is urged forward by the spring force of the spring 9 and connected. It engages with the rear end of the needle 5 and presses it. The tip of the pusher link 17 is the magazine 3 While sliding forward along the guide groove 10 of the pusher 8, the pusher 8 engages with the head 8a. It comes off and moves beyond the connection needle 5. Then, the needle cover 13 is held by the leaf spring 16. Press down the connecting needle 5.

[0013] By the way, when loading the connecting needle 5, make sure to place the connecting needle 5 in the storage section 6 of the magazine 3. It is possible to load the cartridge with it floating above the bottom of the storage compartment 6 without fully loading it. be. In this case, as the handle 4 rotates in the closing direction, the pusher link 17 While the tip of the connecting needle 5 slides forward, the slope portion 22 rubs up from the rear end of the connecting needle 5 and connects. Move beyond the top of the needle 5 (see Figure 3). At this time, the connecting needle in the floating state 5 is pressed downward and loaded in a normal state. Therefore, pusher link 1 The return movement of the handle 7 and the rotation of the handle 4 can be performed without any problem.

[0014] Note that the slope portion 22 of the pusher link 17 is mounted in a floating state when the handle 4 is closed. It is sufficient to form the connecting needle 5 so that it slides up from the rear end of the inserted connecting needle 5, and its shape is also shown in Fig. 2. Not limited to what is shown. It may be formed as shown in FIG.

[Brief explanation of drawings]

[Fig. 1] Longitudinal cross-sectional view of the stapler according to the present invention

[Figure 2] Plan view of pusher link

[Figure 3] Explanatory diagram of the main parts of the handle in the closed state

[Figure 4] Side view of another example of pusher link

[Explanation of symbols]

4 Handle 8 Pusher 5 Connecting needle 17 Pusher link 22 Slope section

Claims (1)

[Scope of utility model registration request] [Claim 1] A pusher retracting mechanism is provided which engages with the pusher pressing the connecting needle to move the pusher backward when the handle is rotated to open the handle, thereby forming a loading space for the connecting needle in the magazine. In the stapler, the tip of the end of the pusher link that transmits the rotation of the handle to the pusher is formed with a sloped portion that is large enough to slide up from the rear end of the connecting needle loaded in a floating state when the handle is closed. Features a stapler.