JP3840980B2 - stapler - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a stapler capable of easily disassembling a metal part and a synthetic resin part in an assembled state at the time of repair or disposal, and capable of separating and reassembling after separation.
[0002]
[Prior art]
In the stapler for binding a plurality of binding sheets with U-shaped staples, the main parts are made of a metal material in order to maintain the precision of the parts and to maintain the durability against abrasion, etc. A synthetic resin molded part is used in combination with the metal part in order to reduce weight and cost together with these main parts.
[0003]
For example, as shown in FIG. 6, the clincher arm 2 including the clincher 1 that bends the leg portion of the staple is formed of a metal material in order to maintain wear resistance due to contact with the staple leg, In order to maintain the dimensional accuracy between the pivotal support hole 3 formed on the base side and the clincher 1, a base 4 formed by bending a metal plate material with a press, and a base 4 formed in this U shape. A cover member 5 formed of synthetic resin is integrally assembled on the outer peripheral side so as to cover the side surface and the lower surface of the cover.
[0004]
As shown in FIG. 7A, the cover member 5 is formed with a recess 6 so as to accommodate the outer peripheral surface of the base 4 formed in a U-shape, and the inner surfaces of both side walls 7 forming the recess 6. Are formed with projecting engagement claws 9 that engage with engagement holes 8 formed on both side walls of the base 4, and the base 4 is pushed into the recess 6 of the cover member 5. The lower surface of 9 is engaged with the lower edge of the engagement hole 8 so that the base 4 and the cover member 5 are assembled together.
[0005]
[Problems to be solved by the invention]
By the way, it is necessary to separate parts that are assembled together at the time of repair, and parts that are made of different materials must be separated and disposed of for each material at the time of disposal. When the parts and the synthetic resin parts are assembled by engaging the engaging claws 9 and the engaging holes 8, it is difficult to separate them and to dispose them separately. Further, although it is possible to forcibly separate the base 4 and the cover member 5 with a dedicated tool or the like, it is impossible for a general user to prepare a dedicated tool at the time of disposal. Further, FIG. In the separated state, the engaging claw 9 is destroyed, so that there is a problem that it cannot be reassembled in the case of repair or the like.
[0006]
The present invention provides a metal part and a synthetic resin part that can be easily separated without using a dedicated tool and can be easily disposed of separately. It is an object to provide an assembled stapler.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, a stapler according to the present invention is a magazine that accommodates a large number of staples, a handle portion that includes a driver that ejects the staples accommodated in the magazine toward a binding sheet, and is ejected from the magazine. A clincher arm provided with a clincher arm having a clincher arm that bends the front end of the leg of the staple that has passed through the binding paper along the back surface of the binding paper, and the clincher arm has a cross section in a cross section. It is composed of a base made of a metal part formed in a U-shape and a cover member made of a synthetic resin part in which concave grooves are formed so as to cover both side surfaces and the lower surface side of the base, and both side walls of the cover member to be engaged with the engagement hole formed respectively engaging claw which respectively protrude on the inner surface to the base of the side walls Assembling the cover member to the base, between the side wall of the base wall and the cover member in the vicinity of the engagement claws and engagement holes, which can insert the metal piece or the like of the coins is opened upward A groove is formed.
[0008]
The stapler according to claim 2 is characterized in that the groove is formed on an inner surface of a side wall of the cover member.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the examples shown in the drawings. FIG. 1 shows an embodiment of a stapler according to the present invention. A magazine 10 for storing a large number of staples, a handle portion 12 having a driver 11 for driving the staples in the magazine 10 toward a binding sheet, and the magazine 10. A clincher arm 14 provided with a clincher 13 that bends the leading end portion of the staple that has been punched through the binding sheet and bends along the back surface of the binding sheet is rotatably supported by a support shaft 15 at each rear end. Yes.
[0010]
The front end portion of the magazine 10 is formed with a punching hole 16 for ejecting the first staple stored in the magazine 10 toward the binding paper disposed on the lower surface of the magazine 10. Further, the magazine 10 is accommodated in the magazine 10. A pusher 17 for pressing and urging the staple toward the punching hole 16 is disposed. The pusher 17 is slidably supported along a guide rod 18 disposed in the magazine 10 and is urged toward the front of the magazine 10 by a pusher spring 19.
[0011]
By pressing the upper surface of the handle portion 12, the staples in the magazine 10 are driven out from the punching hole 16 through the driver 11 toward the binding paper disposed on the lower surface of the magazine 10, and the staples penetrating the binding paper are used. The leg portion is bent along the back surface of the binding paper by the clincher 13 to bind the binding paper.
[0012]
As shown in FIGS. 2 and 3, the clincher arm 14 is assembled so as to cover a base 20 formed by bending a metal plate material so that the cross section has a U-shape, and both side surfaces and the lower surface of the base 20. And a cover member 21. A pivotal support hole 22 supported by the support shaft 15 is formed in the rear end portion of the base 20, and a metal material in which a clincher groove 23 is formed on the upper end portion to abut the staple leg tip and bend the staple leg. A clincher 13 made of is integrally formed. Engagement holes 25 penetrating the side walls 24 are formed in the side walls 24 formed on both sides of the base 20.
[0013]
The cover member 21 is formed of a synthetic resin, and a concave portion 26 is formed on the inner side so as to accommodate the base 20. The outer surface is a curved surface bulged so that the stapler can be easily operated by hand. It is formed with. Engagement claws 28 that engage with the engagement holes 25 are formed on the inner surfaces of the side walls 27 that form the recesses 26 at portions corresponding to the engagement holes 25 formed in the base 20. The engaging claw 28 is formed with an inclined surface 29 so that the protruding dimension is larger on the lower side than the upper side, and the side wall 27 of the cover member 21 is expanded by the inclined surface 29 by pushing the base 20 into the recess 26 when assembled. Can be installed. In a state where the base 20 is assembled in the recess 26 of the cover member 21, the lower surface of the engaging claw 28 and the lower edge of the engaging hole 25 come into contact with each other as shown in FIG. It prevents you from getting out.
[0014]
As shown in FIG. 3, a recess 30 is formed on the inner surface of both side walls 27 in the vicinity of the engagement claws 28 of the side walls 27 of the cover member 21, and the depth and width of the recess 30 is, for example, a coin. As shown in FIG. 4A, in the state where the cover member 21 is assembled to the base 20, as shown in FIG. A groove 31 into which a coin or the like can be inserted is formed.
[0015]
A state in which the base 20 and the cover member 21 according to the above embodiment are separated will be described with reference to FIGS. 4A, 4B, and 5 showing cross sections taken along lines AA and BB in FIG. In the assembled state, as shown in FIG. 4B, the engaging claw 28 engages with the lower edge of the engaging hole 25 to integrally couple the cover member 21 and the base 20. As shown in FIG. 4 (a), a recess 31 is formed between the side wall 27 of the cover member 21 and the side wall 24 of the base 20 by the recess 30, and a coin-like metal piece is formed in the groove 31. By inserting a part of P or the like and inclining the upper part of the metal piece P toward the outside as shown in FIG. 5A, both side walls 27 of the cover member 21 are deformed outward. As the side wall 27 of the portion where the concave portion 30 is formed is deformed, as shown in FIG. 28 spreads outward and is disengaged from the engagement hole 25 of the base 20 so that the base 20 and the cover member 21 can be separated.
[0016]
In the above embodiment, the groove 31 is formed by forming the recess 30 on the cover member 21 side. However, the groove 31 can also be formed by forming a recess on the base 20 side. Further, in the above embodiment, the assembly structure using the engagement claw 28 and the engagement hole 25 is implemented in the front part of the clincher arm 14, but the same engagement claw and engagement hole are also formed in the rear part of the clincher arm 14. The assembling mechanism may be formed, and the groove 31 may be formed in the vicinity of the engaging claw and the engaging hole. Furthermore, the present invention is not limited to the clincher arm 14 but can be implemented for assembling metal parts and synthetic resin parts in the handle portion 12. Further, in order to separate the metal member and the resin member, a screw driver or a key or another resin piece having a hardness that can be used for the separation work may be used instead of the coin.
[0017]
【The invention's effect】
As described above, according to the present invention, the base made of a metal part and the cover member made of a synthetic resin part are assembled by engaging the engaging claw and the engaging hole, and the engaging claw and the engaging hole are assembled. Since a groove in which a metal piece such as a coin can be inserted is formed between the metal part and the synthetic resin part in the vicinity of the synthetic resin, the coin is inserted into this groove and the upper part of the coin is kneaded and the synthetic resin The cover member made of parts can be deformed to disengage the engagement state between the engagement claw and the engagement hole, and the base made of metal parts and the synthetic resin parts can be used without using special tools for disassembly. The cover member made of can be separated and discarded. Further, in the case of repair, the engaging claw 28 is not damaged by separation, so that a repaired part or a replacement part can be reassembled.
[Brief description of the drawings]
1 is a longitudinal side view of a stapler according to an embodiment of the present invention. FIG. 2 is a perspective view of a clincher arm of the stapler of FIG. 1. FIG. 3 is a perspective view of the stapler of FIG. FIG. 5 is a cross-sectional view showing the clincher arm in an assembled state, in which (a) is a cross-sectional view taken along line AA in FIG. 2, and (b) is a cross-sectional view taken along line BB in FIG. FIGS. 6A and 6B show a state in which the cover member and the base are separated, wherein FIG. 6A is a cross-sectional view taken along the line AA in FIG. 2, and FIG. 6B is a cross-sectional view taken along the line BB in FIG. FIG. 7 is a cross-sectional view of a clincher arm of a conventional stapler. FIG. 7 is a cross-sectional view of the clincher arm of FIG. 6, in which (a) is an assembled state diagram, and (b) is a state diagram in which a base and a cover member are separated. [Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Magazine 12 Handle part 13 Clincher 14 Clincher arm 20 Base 21 Cover member 22 Pivot hole 23 Clincher groove 24 Side wall 25 Engagement hole 26 Recessed part 27 Side wall 28 Engagement claw 29 Inclined surface 30 Recessed part 31 Groove

Claims (2)

A magazine for storing a large number of staples, a handle portion provided with a driver for driving the staples stored in the magazine toward the spelling paper, and a leg tip end portion of the staple that is punched out from the magazine and penetrates the spelling paper. A stapler in which a clincher arm having a clincher bent along the back surface of a binding sheet is rotatably supported at each rear end portion, and a base made of a metal part in which the clincher arm is formed in a U-shaped cross section. and is composed of a cover member made of a synthetic resin component concave grooves are formed so as to cover both side surfaces and the lower surface side of the base, each protrusion forming the engaging claw to the side walls the inner surface of the cover member based assembling the cover member to the base by engaging the engaging hole formed on both side walls, the engagement Stapler, characterized in that the between the sidewall of the base wall and the cover member in the vicinity of the engaging hole, to form a groove capable of insertion of the metal piece or the like of the coins is opened upward. The stapler according to claim 1, wherein the groove is formed on an inner surface of a side wall of the cover member.

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