JP2007190635A - Paper staple driving machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper staple driving machine which can prevent a stitching portion from being soiled, is widely applicable to a manually operated machine, and can reduce an operating load thereof. <P>SOLUTION: According to the structure of the paper staple driving machine, a vertically movable punch 3 having an almost rectangular solid has opening sections on both upper and lower sides, and a U-shaped paper staple 4 is set inside the punch 3 in a manner ready to be driven. A crown shape of the paper staple 4 is formed so as to be almost the same as an inner peripheral shape of the punch 3 so that leg portions 9, 10 of the paper staple 4 are held in an inner side of the punch 3 while making elastic contact with the same when set. Then a pressing member 12 for detachably fitting to the inside of the punch 3 is vertically movably arranged over the punch 3, and a pair of blade portions 6, 6 are arranged at a lower edge of the punch 3 so as to be opposed to each other. The blade portions 6, 6 are fitted into a punch hole 2 formed in a receiving stand 1, and therefore through holes 8, 8 are bored in papers P by virtue of shear force. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a paper staple driving machine, and in particular, is used when a punched hole is formed in a document placed on a cradle and a U-shaped paper staple is driven into the punched hole. The present invention relates to a paper staple driving machine.

2. Description of the Related Art Conventionally, as the above-described driving machine, there has been known one provided with a blade portion for punching a punch hole in a document and forming a square hole in the blade portion itself. When this stapler is used to penetrate the staple, after forming a punching hole by penetrating a blade portion with a square hole from the front surface side to the back surface side of the document, the staple is inserted into the square hole of the blade portion. A method is adopted in which the staple is pulled out from the direction and pulled out to the front side of the document in the same state (see Patent Document 1).
JP-A-10-000871

  The staple penetrating method described in Patent Document 1 has the following demerits because the staple is pulled out in a state where the staple is inserted into the square hole of the blade portion. That is, since the square hole is formed in the blade part, the strength of the blade part itself is insufficient. Therefore, in order to increase the strength of the blade part, the plate thickness of the blade part may be increased to a predetermined value or more, but in this case, the punched hole formed in the document by the blade part becomes large, There are drawbacks in that peripheral binding portions are easily soiled and not good in appearance.

  In the above conventional method, after the blade portion is inserted into the document, the staple must be pulled out by inserting the staple into the square hole of the blade portion, so that a two-step action is required and the operability is improved. There is a demerit that is not suitable for manual machines. In particular, when pulling out an adhesive-type staple, since the adhesive surface of the staple is in contact with the edge of the punching hole, the operation load (return spring load) when pulling out the staple is considerably increased.

  Therefore, there is a technical problem to be solved in order to prevent fouling of the binding position of the document, to be widely applicable to manual machines, and to reduce the operation load of the driving machine. The present invention aims to solve the problem.

  The present invention has been proposed to achieve the above object, and the invention according to claim 1 is a driving machine for driving a paper staple formed in a U-shape into a document, the driving machine being The cradle includes a cradle, a punch, and a pressing member. The cradle has a substantially rectangular punch hole in the center, and the punch is composed of a hollow cuboid that is open in the vertical direction. Blade portions are respectively formed at the lower ends of the opposing side walls, and the pressing member is provided so as to be slidably fitted to the inner side surface of the punch, and the paper staple is provided on the inner side surface of the punch. With the punch set, a punching hole is formed in the document with the punch, and the paper staple is configured so that the paper staple can be pushed into the punching hole by a pressing force of a pressing member. To provide only machine.

  According to this configuration, when U-shaped paper staples are driven into a document placed on the cradle, first, the paper staples are set so as to be driven into the inner surface of the substantially rectangular parallelepiped punch. Then, in this set state, the punch is lowered to the document side, whereby the blade portions at the lower end portions of the opposite side walls are driven from the upper surface side of the document to open a punching hole. Next, the pressing member is lowered to press the crown portion of the paper staple against the upper surface of the document while driving the leg portion of the paper staple into the punching hole.

  According to a second aspect of the present invention, the crown portion of the paper staple and the inner peripheral portion of the punch are formed so as to have substantially the same shape and dimension, and the paper staple is set when the paper staple is set. The paper staple driving machine according to claim 1, wherein the leg portion of the punch is held in elastic contact with the inner surface in the opposite direction of the punch.

  According to this configuration, since the shape dimension of the crown portion of the paper staple is formed so as to be substantially the same as the shape dimension of the inner peripheral portion of the punch, when the paper staple is inserted into the punch, The leg portion of the paper staple is held in elastic contact with the inner surface of the punch. For this reason, the paper staple is set in a state where it can be driven.

  According to a third aspect of the present invention, an inclined portion is provided on an inner surface of the blade portion, and the blade portion is configured to open the punching hole in the document by a shearing force in cooperation with the punch hole. A paper staple driving machine according to claim 1 or 2 is provided.

  According to this configuration, the punch blade portion cooperates with the punch hole to open the punch hole with a shearing force. In this case, the inner edge portion of the punching hole is pushed and punched inward by the inclined portion on the inner surface of the blade portion.

  According to the first aspect of the present invention, since the blade provided at the lower part of the punch is formed at the lower end of the hollow substantially rectangular parallelepiped, the required strength can be secured without increasing the blade thickness. Accordingly, the punching hole becomes smaller as the blade thickness becomes smaller, so that the binding portion around the punching hole is less likely to be stained, and the appearance is improved.

When the staple is driven, the punch only needs to be moved linearly only in the driving direction, so that only one action is required, the operation stroke is shortened, the configuration is simple, and the manual driving machine is sufficiently suitable. In particular, even when a staple with an adhesive is driven, since the adhesive does not contact the edge of the punching hole, the operating load of the driving machine is reduced. The invention according to claim 2, wherein the paper staple can be driven into a document Therefore, in addition to the effect of the first aspect of the invention, a mechanism for holding the paper staple in the punch becomes unnecessary, and the configuration is further simplified.

  In the invention of claim 3, since the blade portion cooperates with the punch hole to form a punching hole in the document by shearing force, in addition to the effect of the invention of claim 1 or 2, the document is cut to form the hole. Compared with the case of forming, the processing accuracy of the punched hole is increased. Further, since the inner edge portion of the punching hole is pushed inward by the inclined portion of the blade portion and sheared, the resistance force at the time of shearing is reduced, and the operation load of the punching machine is further reduced accordingly.

  The present invention is a driving machine for driving a paper staple formed in a U-shape into a document, and the driving machine includes a cradle, a punch, and a pressing member, and the cradle has a substantially rectangular shape at the center. The punch has a hollow substantially rectangular parallelepiped open in the vertical direction, and each has a blade at the lower end of both side walls of the substantially rectangular parallelepiped, and the pressing member The punch is formed so that it can be slidably inserted into the inner side surface of the punch, and the paper staple is set on the inner side surface of the punch. The paper staple is pushed into the hole by the pressing force of the pressing member, and the crown portion of the paper staple and the inner peripheral portion of the punch are substantially the same in size. form In addition, the blade has achieved the purpose of preventing fouling of the binding portion by applying a punching hole by shearing force in cooperation with the punch hole on the cradle side, and applicable to a manual type machine. .

  As the paper staple driven by the driving machine of the present invention, any of a type having an adhesive part and a type having no adhesive part can be used. In particular, when a paper staple having an adhesive portion is used, since the adhesive portion does not contact the edge of the punching hole, the operation load of the driving machine is further reduced.

  A preferred embodiment of the present invention will be described below with reference to FIGS. The feature of this embodiment is that a substantially rectangular punch hole 2 is formed in the central portion of the die 1 which is a cradle, while the punch 3 is made up of a substantially rectangular parallelepiped that can be moved up and down and opened in the vertical direction. The blades 6 and 6 are respectively provided at the lower ends of the opposite side walls of the punch 3, the pressing member 12 is provided above and below the punch 3, and the pressing member 12 can slide up and down on the inner surface of the punch 3. It is to be inserted in.

  Thus, with the U-shaped paper staple 4 set on the inner surface of the punch 3, the punch 3 is lowered, and the slits 6 through 6 are formed in the slit-like through-holes 8, which are punched holes. 8 is opened. Thereafter, the paper staple 4 is pushed into the through holes 8 and 8 by lowering the pressing member 12.

  In this embodiment, various raising / lowering drive mechanisms are provided to perform the setting of the paper staple 4 into the punch 3, the document penetration of the punch 3, the pressing of the paper staple 4, the clinching and the crimping at a predetermined operation timing. In addition, a transfer drive mechanism and the like (not shown) are provided. As these drive methods, a known drive method such as a cam, a link, a spring, an electromagnet, etc., or a drive method combining these may be adopted as appropriate. it can.

  This embodiment will be described in more detail. FIGS. 1 and 2 are an exploded perspective view and a front sectional view, respectively, showing a paper staple 4 driving machine. In the figure, reference numeral 1 denotes a die as a cradle on which a document P is placed, and a substantially rectangular punch hole 2 is formed at a substantially central portion of the die 1. The punch 3 is provided at a position directly above the punch hole 2 so as to be movable up and down. The outer peripheral shape of the punch 3 is substantially the same as the inner peripheral shape of the punch hole 2, and the lower end side portion of the punch 3 is attached to and detached from the punch hole 2. It is configured to fit freely.

  The punch 3 is formed of a substantially rectangular parallelepiped having both upper and lower sides opened, and a hollow portion inside the substantially rectangular parallelepiped is formed in a box shape. The shape of the hollow portion in plan view is formed into an elongated, substantially rectangular shape that substantially matches the shape of the crown portion 5 of the paper staple 4. The paper staple 4 shown in FIG. 3 is loaded and set inside the punch 3 by a transfer driving mechanism (not shown).

  Hole punching blade portions 6 and 6 are formed at the lower portions of both sides of the punch 3 in the left-right direction LR, and the blade portions 6 and 6 face each other at the same height. In the illustrated example, the blade portions 6 and 6 are formed in a substantially letter-shaped longitudinal section having an inclined portion on the inner side surface of the tip portion, and open downward on the punch wall lower edge portion between the blade portions 6 and 6. A substantially isosceles trapezoidal cutout 7 is formed.

  After the document P is placed on the die 1, the punch 3 is lowered and the blade parts 6 and 6 are fitted into the punch hole 2. 8,8 are punched out. An example of the shape of the punched through holes 8 and 8 is shown in FIG. In this case, the through holes 8 and 8 are formed by the shearing force of the blade parts 6 and 6.

  The inner hollow portion of the punch 3 is formed so that a U-shaped paper staple 4 can be loaded and set. As shown in FIG. 3, one end side and the other end side of the crown portion 5 of the paper staple 4 are formed. The leg portion 9 and the leg portion 10 are connected substantially vertically. Specifically, the leg portions 9 and 10 have a shape that is slightly opened outward before being inserted into the punch 3, but when the leg portions 9 and 10 are inserted into the punch 3, The portions 9 and 10 are slightly moved inwardly to each other, and the leg portions 9 and 10 are inserted in a suspended state parallel to each other. That is, when the paper staple 4 is loaded into the punch 3, the leg portions 9 and 10 of the paper staple 4 are held in a state where they can be driven in elastic contact with the inner surfaces of the punch 3 facing each other.

  An adhesive is not applied to one side leg portion 9 of the paper staple 4, but an adhesive (adhesive portion) 11 is applied to the inner side surface of the other side leg portion 10. Therefore, when the one leg portion 9 and the other leg portion 10 of the paper staple 4 are sequentially bent and polymerized, the overlapping portions of the leg portions 9 and 10 are stuck in a holding state via the adhesive 11. It is fixed.

  A staple pressing member 12 is provided at a position directly above the punch 3 so as to be movable up and down. A shaft 13 is fixed to the center of the upper surface of the pressing member 12. The outer peripheral shape of the pressing member 12 is substantially the same as the inner peripheral shape of the punch 3 and is formed so as to be detachably fitted inside the punch 3. The pressing member 12 presses the crown portion 5 of the paper staple 4 driven into the document P with an appropriate pressure, whereby the leg portions 9 and 10 of the paper staple 4 are pressed into the through holes 8 and 8 at the same time. The floating of the paper staple 4 with respect to the document P is prevented.

  On the other hand, a clincher device (clincher portion) 14 for clinching the leg portions 9 and 10 of the paper staple 4 and a clinching portion of the leg portions 9 and 10 are pushed up and bonded to a position directly below the punch hole 2. A crimping member 15 is provided. The crimping member 15 includes a projecting portion 16 having a planar shape corresponding to the clinch portion, and seats 17 and 18 connected to both left and right sides of the lower end portion of the projecting portion 16. Is formed in a substantially inverted T-shape.

  In the illustrated example, the clincher device 14 and the crimping member 15 are configured to be lifted and lowered integrally with each other by a lifting drive mechanism, but are configured to be lifted and lowered independently of each other by being configured separately. May be. In this case, the crimping member 15 can be operated in a rotating manner, for example, so as not to interfere with the operation of the clincher device 14.

  The clincher device 14 is interposed between first and second clincher members 19 and 20 disposed on the seat portions 17 and 18 of the crimping member 15, and between the clincher members 19 and 20 and the seat portions 17 and 18. Springs 21 and 22. The first and second clincher members 19 and 20 are elastically biased in the separating direction by the force of the springs 21 and 22 with respect to the upper surfaces of the seat portions 17 and 18, respectively. Inclined portions 23 and 24 are formed inside the upper ends of the first and second clincher members 19 and 20, respectively.

  The vertical lengths of the first clincher member 19 and the second clincher member 20 are substantially the same, and the first clincher member 19 is located above the second clincher member 20. As an example, this configuration is achieved by setting the length of the spring 21 longer than the length of the spring 22 by a predetermined value. Therefore, when the clincher device 14 rises integrally with the crimping member 15, first, the inclined portion 23 of the first clincher member 19 comes into contact with the one leg portion 9 of the paper staple 4 and bends it. Thereafter, the inclined portion 24 of the second clincher member 20 contacts the other leg portion 10 of the paper staple 4 and bends it.

  With reference to FIGS. 5 to 11, a description will be given of the process of driving the paper staples 4 placed on the die 1 into the document P and binding them in the above configuration. First, in the state before staple driving, the punch 3 is waiting at a position directly above the punch hole 2 of the die 1 as shown in FIG.

  Now, when the punch 3 is lowered to the die 1 side, as shown in FIG. 6, the blade portions 6 and 6 of the punch 3 are fitted into the punch holes 2 of the die 1, and the blade portions 6 and 6 and the punch holes 2 In cooperation with each other, the through holes 8 and 8 are punched into the document P with a shearing force. Next, the pressing member 12 is lowered while the blade portions 6 and 6 of the punch 3 are passed through the through holes 8 and 8. Then, as shown in FIG. 7, the pressing member 12 pushes down the crown portion 5 of the paper staple 4, whereby the leg portions 9 and 10 of the paper staple 4 smoothly move along the inner surface of the punch 3. The inside of the through holes 8 and 8 of the document P is displaced downward.

  Eventually, the leg portions 9 and 10 of the paper staple 4 descend through the through holes 8 and 8 and reach the lower surface side of the document P. As a result, the crown portion 5 of the paper staple 4 comes into close contact with the upper surface of the document P, and the leg portions 9 and 10 are reliably driven to the target position. Thereafter, as shown in FIG. 8, only the punch 3 is raised and returned to the original position, thereby completing the staple penetration. The pressing member 12 presses the crown portion 5 of the paper staple 4 against the upper surface of the document P and holds the paper staple 4 in an intimate contact state, thereby reliably preventing the paper staple 4 from floating from the upper surface of the document P.

  When the punch 3 returns upward, a new paper staple 4 is transferred from the staple storage portion into the punch 3 and loaded and set so that it can cope with the next staple driving process. In this case, when the paper staple 4 is inserted into the punch 3, the leg portions 9 and 10 are brought into elastic contact with the inner surface of the punch 3, whereby the paper staple 4 is held in a state where it can be driven into the punch 3. .

  Next, the leg portions 9 and 10 of the paper staple 4 are clinched by the clincher device 14 while the crown portion 5 is pressed against the document P by the pressing member 12. In this case, the pressing member 12 and the die 1 may be lowered to the clincher device 14 side for clinching, but here, the clincher device 14 is raised to the die 1 side for clinching.

  That is, when the clincher device 14 is lifted, first, as shown in FIG. 9, the inclined portion 23 of the first clincher member 19 comes into contact with the outer surface of the one leg 9 in the suspended state, and the inclined portion 23 is raised. Accordingly, the one leg 9 is bent inward. When the inclined portion 23 reaches the rising end, the one leg portion 9 is finally bent by about 90 ° and is folded in a state substantially parallel to the crown portion 5.

  Subsequently, as the clincher device 14 is further raised, the inclined portion 24 of the second clincher member 20 contacts the outer surface of the other leg portion 10 in the suspended state. Thereafter, when the other leg 10 is bent inward along with the upward displacement of the inclined portion 24 and the inclined portion 24 reaches the rising end, the other leg 10 is finally moved as shown in FIG. It is bent about 90 ° and is folded in a state substantially parallel to the crown portion 5. Thereby, the adhesive (adhesive part) 11 of the other side leg part 10 superposes | stacks on the lower surface of the one side leg part 9, and a clinching process is complete | finished.

  Thereafter, when the clincher device 14 further moves upward, the crimping member 15 attached to the clincher device 14 hits the lower surface of the adhesive portion 11 of the other leg 10 and pushes up the upper surface of the adhesive portion 11 to the lower surface of the one leg 9. Crimp to. Thus, as shown in FIG. 11, the overlapped portion of the one leg portion 9 and the other leg portion 10 is securely bonded and fixed. Thereafter, the clincher device 14 is moved back to the original lower position to complete the document binding process of the paper staple 4.

  As described above, in this embodiment, after the punch 3 is lowered to the document P side, the blades 6 and 6 on the lower end side of the punch 3 are driven from the upper surface side of the document P to form the through holes 8 and 8. The pressing member 12 is lowered, and the crown portion 5 of the paper staple 4 is pressed against the upper surface of the document P, whereby the legs 9, 10 of the paper staple 4 are driven into the through holes 8, 8. is there.

  The punch 3 according to the present embodiment is formed of a substantially rectangular parallelepiped and does not have a hole. Therefore, the blades 6 and 6 below the punch 3 can secure the required strength without increasing the blade thickness, so that the through-holes 8 and 8 are smaller than in the conventional method, and the document P is not rattled. It can be securely bound.

  In addition, the binding locations around the through holes 8 and 8 are not easily soiled, and the appearance is improved. In particular, when the through holes 8 and 8 are punched with the blade portions 6 and 6, the punch 3 needs only one action in the punching direction, and the punching stroke is shortened.

  Further, since the crown portion 5 of the paper staple 4 and the inner peripheral portion of the punch 3 are formed to have substantially the same shape and dimension, when the paper staple 4 is loaded inside the punch 3, the paper staple 4 The legs 9 and 10 are loaded and set in a state where the legs 9 and 10 are in elastic contact with the inner surface of the punch 3, that is, in a state where the paper staple 4 can be driven. Therefore, a mechanism for holding the paper staple 4 inside the punch 3 becomes unnecessary.

  Furthermore, when the blade portions 6 and 6 are fitted into the punch holes 2 of the die 1 and the through holes 8 and 8 are opened in the document P, the outer surfaces of the tip portions of the blade portions 6 and 6 are punched on the die 1. Since the through-holes 8 and 8 are punched by shearing force in cooperation with the inner end face of the hole 2, the dimensional shape of the through-holes 8 and 8 is processed with higher accuracy than the tearing method. In addition, when punching, the inner edges of the through-holes 8 and 8 are pushed inward by the inclined portions of the blades 6 and 6 to escape, so that the shear resistance is reduced and the operation load of the punching machine is further reduced.

  The present invention can be variously modified without departing from the spirit of the present invention, and the present invention naturally extends to the modified one. For example, the clincher device 14 may adopt other methods such as a roller method and a link method.

1 is an exploded perspective view of a paper staple driving machine according to an embodiment of the present invention. Front sectional drawing of the driving machine which concerns on an Example. The perspective view of the paper staples which concern on an Example. The perspective view which shows the through-hole opened by the document which concerns on an Example. Front sectional drawing explaining the state before the punching of the through-hole by the driving machine which concerns on an Example. Front sectional drawing explaining the state at the time of the punching of the through-hole by a driving machine same as the above. Front sectional drawing explaining the state at the time of the punching of the paper staples by a driving machine same as the above. Front sectional drawing explaining the state at the time of pressing of the paper staples by the driving machine same as the above. Front sectional drawing explaining the state at the time of folding of the one side leg part of the paper staple by a driving machine same as the above. Front sectional drawing explaining the state at the time of folding of the other side leg part of the paper staple by a driving machine same as the above. Front sectional drawing explaining the state at the time of the crimping | compression-bonding of the adhesion part of the paper staple by a driving device same as the above.

Explanation of symbols

1 Die (cradle)
2 Punch hole 3 Punch 4 Paper staple 5 Crown part 6 Blade part 7 Notch part 8 Through hole (punching hole)
9 One leg 10 The other leg 11 Adhesive (adhesive part)
12 Pressing member 13 Shaft 14 Clincher device (clincher part)
15 Crimping member 16 Protruding portion 17 Seat portion 18 Seat portion 19 First clincher member 20 First clincher member 21 Spring 22 Spring 23 Inclined portion 24 Inclined portion P Document

Claims (3)

A driving machine for driving a paper staple formed in a U-shape into a document, the driving machine comprising a cradle, a punch and a pressing member;
The cradle has a substantially square punch hole in the center,
The punch is formed of a hollow, substantially rectangular parallelepiped that is open in the vertical direction, and blades are formed at lower ends of both side walls of the substantially rectangular parallelepiped,
Further, the pressing member is provided so as to be slidably inserted into the inner side surface of the punch,
With the paper staple set on the inner surface of the punch, the punch can punch a punch hole in the document, and the paper staple can be pushed into the punch hole by the pressing force of the pressing member. A paper staple driving machine characterized in that it is configured as described above.   The crown portion of the paper staple and the inner peripheral portion of the punch are formed to have substantially the same shape and dimension, and when the paper staple is set, the leg portion of the paper staple is opposed to the punch. 2. The paper staple driving machine according to claim 1, wherein the paper staple driving machine is configured to be held in elastic contact with an inner surface in a direction. An inclined portion is provided on an inner surface of the blade portion, and the blade portion is configured to open the punching hole in the document by a shearing force in cooperation with the punch hole. 2. A paper staple driving machine according to 2.

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