JPH0650771U - stapler - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a stapler in which a punching member is firmly and firmly fixed. [Structure] The stapler has a pair of wall portions arranged in parallel with the upper member, and a gap is formed between the wall portions. 1
Or more ribs are formed in the gap, and the punching member is forcibly mounted in the gap, sandwiched by the rib and the wall portion, and firmly held at a predetermined position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a stapler, and more particularly to a punching member forming a part thereof.

[0002]

[Prior art]

 A typical punching member 41 of a stapler has a hole 42 formed therein for mating with a protrusion 43 provided on the upper member 40 of the stapler, as shown in FIG. 4, for hitting a stapler needle. And an extension 44 depending from the punching member.

Another type of punching member is shown in FIG. 5, where the cap 55 is rotatably coupled to the stapler upper member 50 and has a flange 56 formed at its free end. Further, the upper member 50 is formed with a pair of L-shaped protrusions 51 at its free end and a spring 57 is arranged therein. The punching member 52 has an opening 53 that engages with the flange 56, and a pair of protrusions 54 that extend outward from the side to engage with the protrusion 51. It is designed to be held in the position.

[0004]

[Problems to be solved by the device]

 However, in the former prior art, since the punching member 41 and the extension portion 44 are integrally formed and the extension portion 44 is bent from the punching member 41, generally, the punching member 41 has sufficient strength. Instead, the life of the extension 44 was not long.

Further, in the latter technique, the punching member 52 cannot be clearly held in the predetermined position, so that the punching member 52 is easily loosened and easily moved when it is not aligned with the stapler needle. Will be damaged.

Therefore, an object of the present invention is to provide a stapler in which a punching member is firmly and firmly fixed.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the gist of a stapler according to the present invention is that an upper member having a free end and a pair of walls arranged parallel to the free end of the upper member and having a gap therebetween. A portion, at least one rib formed on one of the wall portions, a first edge fitted in the gap and attached between the rib and the other of the wall portions, and a leg portion. A punching member having two end portions, each of which has a tip portion formed to fit with the upper member, whereby the punching member is securely held in a predetermined position. .

[0008] Here, the upper member may be provided with a pair of recesses that fit into the distal end portions of the respective leg portions, and each wall portion has a wall for reinforcement. There may be provided at least one pillar fixed to the portion and arranged outside the gap.

[0009]

【Example】

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

In FIGS. 1 to 3, the punching member 30 is fixed to the free end portion of the upper member 20 forming a part of the stapler 10 because it punches the stapler needle. This stapler has a cap 11 rotatably fixed to an upper member 20, and a flange 12 formed integrally with a free end portion of the cap 11. The upper member 20 has a pair of walls 21, and the walls 21 are arranged parallel to and facing the free end portion of the upper member 20, and a gap 22 is formed between the walls 21. Has been. Further, at least one reinforcing column 25 is formed on each wall portion 21, and the column 25 is arranged outside the gap 22. Further, a pair of ribs 23 are integrally provided on the one wall portion 21, and the ribs 23 are arranged in the gap 22.

The punching member 30 has an opening 31 formed to engage the flange 12 of the cap 11, and also has a first edge 34 fitted in the gap 22 and a second staple hitting a stapler needle. Edge 35 of the punching member 30 and the punching member 30 is adapted to be securely attached between the rib 23 and one of the walls 21. The first edge 34 is provided with two ends that are integrally formed with it and that have legs 32 extending away from the first edge 34, each leg 32 being It has a free end with a tip 33 extending in the direction. As best shown in FIG. 3, the gap 22 is provided with a pair of recesses at positions opposed to each other so as to fit with the distal end portions 33 of the leg portions 32, and the recesses allow the punching member 30 to be more firmly fixed. It can be held in position and is prevented from coming off the gap 22.

Here, since the upper member 20 is usually made of a plastic material, the recess that receives the tip end portion 33 of the leg portion 32 is automatically formed when the leg portion 32 of the punching member 30 is pushed into the gap 22. Formed.

Therefore, the punching member is firmly held by the upper member of the stapler and does not come loose.

[0014]

[Effect of device]

 As described above, according to the present invention, a pair of wall portions are arranged in parallel at the free end of the upper member of the stapler, at least one rib is formed on one of the wall portions, and the ribs are formed between the wall portions. By inserting the punching member into the gap, the rib and the other of the wall part sandwich the edge of the punching member, and at the both ends of the edge, leg parts having tip parts are formed, and this tip part is attached to the upper member. As a result, the punching member is firmly held by the upper member of the stapler and is not loosened.

[Brief description of drawings]

FIG. 1 is an exploded view of a portion of a stapler having a punching member according to the present invention.

FIG. 2 is a partial plan view showing a part of the upper member of the stapler of the above.

FIG. 3 is a view in which the upper member is cut by the end surface of the punching member in the above.

FIG. 4 is a cross-sectional view illustrating a conventional typical punching member.

FIG. 5 is a partially exploded view showing another type of conventional punching member.

[Explanation of symbols]

 10 Stapler 20 Upper member 21 Wall part 22 Gap 23 Rib 25 Strut 30 Punching member 32 Leg part 33 Tip part 34 First edge

Claims (3)

[Scope of utility model registration request] 1. An upper member having a free end, a pair of wall portions arranged in parallel to the free end of the upper member and having a gap therebetween, and at least one of the wall portions. A rib and a first edge fitted in the gap and attached between the rib and the other of the wall portions,
A punching member having two ends with legs, each leg having a tip formed to mate with the upper member, thereby securely holding the punching member in place. A stapler characterized by the following. 2. The stapler according to claim 1, wherein the upper member has a pair of recesses formed in the gap so as to be fitted into the distal end portions of the respective leg portions. 3. The stapler according to claim 1, wherein each of the walls has at least one strut fixed to the wall for reinforcement and arranged outside the gap.