JP2015020258A - Punch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a punch that facilitates operation for setting a guide.SOLUTION: A punch includes a guide that is supported on a punch body and performs positioning in the lateral direction of a paper. The guide includes: a guide body that is configured to pivotally support one end of the guide and is rotatable from a guide position to a retracted position; and a stopper that is disposed in the guide body and guides an end portion of the paper at the guide position.

Description

  The present invention relates to a punch for forming a hole in a sheet.

  2. Description of the Related Art Conventionally, a punch for forming a binding hole on a sheet is known (see, for example, Patent Document 1).

  Incidentally, some conventional punches are provided with a guide supported so as to be able to project and retract with respect to a punch body having a sheet receiving surface in order to position the sheet. Such a guide is provided with a stopper that abuts the edge of the paper on the leading end side, and the position of the standing stopper is adjusted by moving the entire guide into and out of the punch body. It is used for positioning of the paper.

  However, in such a case, since the guide is supported so as to protrude and retract with respect to the punch body, it is necessary to adjust the position of the stopper to a predetermined position every time it is used. There is one aspect that the operation for setting to the position becomes complicated. Further, even when the guide is not used, since the erected stopper is positioned close to the paper receiving surface, the stopper may interfere with the paper and impair workability.

JP 2005-103719 A

  The present invention has been made paying attention to the above situation, and it is an object of the present invention to provide a punch that is easy to perform an operation for setting at least a guide to an intended position.

  That is, the present invention has the following configuration.

  The punch according to claim 1 includes a punch main body having a paper receiving surface and a locking wall for positioning the paper in the front-rear direction at the back end of the paper receiving surface, and the paper receiving surface of the punch main body. A punch comprising: a punching mechanism for making a hole in the paper by passing a punching blade through the paper set in the paper; and a guide for positioning the paper in the left-right direction supported by the punch body. The guide is rotatably supported at one end by the punch body and rotated between a guide position and a retracted position, and the end of the sheet is provided at the guide body at the guide position. It is provided with a stopper for guiding.

  Here, the “paper” may be in the form of a sheet, and includes paper, plastic and metal.

  According to a second aspect of the present invention, in the structure according to the first aspect, the punch is provided with impact reducing means for reducing an impact applied to the punch main body and the guide when a strong external force is applied to the guide.

  According to a third aspect of the present invention, in the configuration according to the first or second aspect, the punch includes an impact mitigating means for mitigating an impact applied to the punch body and the guide when a strong external force is applied to the guide, and the impact mitigating means. Is a support shaft provided on one of the punch body and the guide, a shaft support portion provided on the other side to which the support shaft is removably mounted, and a rotational force exceeding a specified value by the external force on the guide. And a motion conversion mechanism that converts the rotational motion into a pull-out motion in a direction in which the support shaft comes out of the shaft support portion.

  According to a fourth aspect of the present invention, in the configuration according to the first, second, or third aspect, the punch is configured such that the stopper is movable with respect to the guide main body, and the punch main body includes the stopper. A rotation preventing means for preventing the guide body from rotating to the retracted position when it is positioned in front of the locking wall.

  The punch according to claim 5 is the structure according to claim 1, 2, 3 or 4, wherein the punch body has a base having the paper receiving surface on the upper side and an open lower side, and a lower opening of the base And a receiving bottom that closes the portion so as to be openable and closable, and the receiving bottom has a guide mounting portion for supporting the guide on one side thereof.

  As described above, according to the present invention, it is possible to provide a punch that is easy to perform an operation for setting at least a guide at an intended position.

The front view which shows one Embodiment of this invention. The rear view in the embodiment. The side view in the same embodiment (state in which a guide exists in a guide position). The side view in the same embodiment (state which has a guide in a standby position). The top view in the embodiment. The bottom view in the embodiment. The exploded perspective view in the embodiment. The partial expanded sectional view in the embodiment. The disassembled perspective view for demonstrating the guide of the embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  In this embodiment, the present invention is applied to a punch A which is a two-hole fixed type office punch for forming a binding hole h in a sheet P by manual operation.

  The punch A has a sheet receiving surface 11, a punch main body 1 provided with a locking wall 12 for positioning the paper P in the front-rear direction at the back end of the paper receiving surface 11, and a paper receiving surface of the punch main body 1. 11 is provided with a punching mechanism 2 that allows a punching blade 21 to pass through the paper P set in the paper 11 to make a hole h in the paper P, and a guide G that is supported by the punch body 1 and that positions the paper P in the left-right direction. Do it.

  Hereinafter, the punch A will be described in detail.

  The punch body 1 includes a base B having a substantially flat sheet receiving surface 11 on the upper side, an open lower side, a receiving bottom U that closes the lower opening m of the base B so as to be openable, and an upper surface of the base B. And a frame F attached thereto.

  The base B is made of metal and has a substantially vertically long rectangular shape in plan view. The base B includes a top wall b1 whose upper surface is a paper receiving surface 11, front and rear walls b2 and b3 extending downward from the peripheral edge of the top wall b1, and left and right side walls b4 and b5. . The base B constitutes a lower opening m that opens downward by the front and rear walls b2 and b3 and the left and right side walls b4 and b5. One end portion, that is, the left end portion of the rear wall b3 is inclined obliquely forward in plan view, and only a part of the corresponding receiving bottom U is scraped off (not shown). Easy to open and close.

  The top wall b1 is provided with a paper receiving surface 11 for supporting the lower surface side of the paper P to be punched at the front portion. The top wall b1 has punch holes 13 through which the punch blades 21 pass at two locations corresponding to the paper receiving surface 11 during the punching operation. The top wall b <b> 1 includes a locking wall 12 that is a wall for bringing the edge of the paper P into contact with the rear end, which is the back end of the paper receiving surface 11, and prohibiting movement in the depth direction. . The top wall b <b> 1 fixes a frame F that supports the punching blade 21 so as to be movable up and down at a portion located behind the sheet receiving surface 11. A mark 14 indicating the center of the left and right punch holes 13 pitch is displayed at the center of the top wall b1.

  The receiving bottom U is detachably attached to the punch body 1 and is made of resin. The receiving bottom U has a guide mounting portion u2 for supporting the guide G on one side thereof. The receiving base U includes a receiving base body u1 having a lid function for closing the lower opening m of the base B, and a guide mounting portion arranged so as to protrude outward from the right edge of the receiving base body u1. u2.

  The bottom receiving body u1 has a substantially rectangular shape in plan view, and the lower surface can be attached to a mounting surface M such as a top plate of furniture. The bottom receiving body u1 includes a bottom wall s1, front and rear walls s2 and s3 that extend upward from the peripheral edge of the bottom wall s1, and left and right side walls s4 and s5. It is possible to accommodate a drop formed when the paper P is punched. The rear corner portion of the bottom receiving body u1 can be partially opened and closed via a hinge portion 15 provided on the bottom wall s1, thereby improving convenience when discarding the scraps. The front portions of the left and right side walls s4 and s5 are provided with extension walls 16 and 17 that are walls extending upward from the upper ends of the left and right side walls s4 and s5. In this embodiment, the right extending wall 17 constitutes a rotation preventing means Z described later. A groove-like recess v extending in the vertical direction is provided in a portion of the right extension wall 17 that is close to the support shaft J on the outer surface side. When the guide G is located at a guide position (g) where the paper P can be positioned in the left-right direction, the concave portion v is protruded from the outer surface of the shaft support portion r which is one end of the guide G, that is, the base end. It can be engaged with a convex portion 33 extending vertically.

  The guide attaching part u2 is disposed adjacent to the support shaft J, a base D that extends outward from the front portion of the right edge of the bottom receiving body u1, a support shaft J that is disposed in front of the base D, and the support shaft J. And an upright wall W formed so that the position of the upper edge w1 gradually increases toward the bottom receiving body u1.

  The base D is a region surrounded by the lower surface and the inner side surface of the L-shaped guide body 3 when the guide G is in the retracted position (s) positioned substantially parallel to the side wall b5 of the base B, and more specifically Is a vertically long rectangular block having a dimension set to enter a space surrounded by the guide portion 31 and the lower extension portion 32. In the base D, a support shaft J is erected in a substantially vertical direction at the front end. The base D includes a protrusion D1 surrounded by a U-shaped slit D2 for facilitating elastic deformation at an intermediate portion. The protrusion D1 protrudes upward, and can be engaged with a downward recess 35 disposed in the lower part of the guide G.

  The support shaft J has a dharma shape, and is formed continuously with the flange portion J1 provided at the base end portion, which is the lower end portion, and gradually decreases in diameter toward the distal end side. An extending support shaft intermediate portion J2 and a support shaft formed continuously from the support shaft intermediate portion J2 and having a substantially hemispherical shape in a side view and having a lower end portion set to have a diameter larger than the diameter of the upper end portion of the support shaft intermediate portion J2. And a tip portion J3. A constricted portion J4 is formed between the support shaft intermediate portion J2 and the support shaft tip portion J3, which is a step due to a dimensional difference in a side view.

  The standing wall W is arranged on the front side of the support shaft J so as to surround the support shaft J. The standing wall W is a wall-like wall standing upright from the base D, and is formed such that the position of the upper edge w1 gradually increases as it goes to the base B side in a front view. The side edge portion on the base B side of the standing wall W is connected to the right side wall s5 having the extending wall 17. In the standing wall W, a base side edge w2 having a relatively short vertical dimension is formed on the opposite side of the base B. In other words, the end edge of the standing wall W has the base end side edge w2 which is an outer side edge, and the inclined upper edge w1. The upright wall W is inclined from the proximal end side edge w2 toward the upper edge w1.

  The frame F is arranged at two places on the left and right sides, and accommodates the punching blade 21 therein and rotatably supports an operating handle 22 for performing a manual drilling operation.

  The punching mechanism 2 is mainly composed of an operating handle 22 and a punching blade 21 that moves up and down by rotating the operating handle 22 up and down. That is, the punching mechanism 2 opens the hole h in the paper P by causing the paper P set on the paper receiving surface 11 of the punch body 1 to penetrate the punching blade 21 by the operation of the operation handle 22. In this embodiment, the punching mechanism 2 causes the punching blade 21 to be moved by the operation position where the leading end side of the punching blade 21 is positioned in the punching hole 13 to open the hole h in the paper P and the elastic repulsive force of the spring 23 which is an operating spring. An operating handle 22 is provided that can be rotated between a standby position positioned in the frame F that is not positioned in the punch hole 13. The punching blade 21 and the operation handle 22 are connected to each other via an intermediate member 24. A lock shaft L is attached to the operation handle 22 so as to be movable back and forth in the left-right direction. The lock handle L is used to frame the operation handle 22 in a state where the operation handle 22 is in the operating position. It is possible to lock against F. Since the punching mechanism 2 has a known configuration, detailed description thereof is omitted.

  The guide G is for positioning the paper P with respect to the punch body 1 in order to determine the position of the hole h formed in the paper P. One end of the guide G is rotatably supported by the punch body 1. The guide G is supported so as to be rotatable in a substantially horizontal direction. The guide G rotates between a position where the paper P can be positioned, that is, a guide position (g) protruding outward from the punch body 1 to a retreat position (s) arranged along the punch body 1. A guide main body 3 that can move, and a stopper 4 that is provided so as to be movable with respect to the guide main body 3 and guides the end of the paper P at the guide position (g). The stopper 4 is set to be positioned behind the locking wall 12 in the retracted position (s).

  The guide body 3 is made of a resin formed in a bowl shape or an L shape, and has a guide portion 31 having a sheet supporting surface 3s on the upper surface and a lower end extending downward from the tip portion of the guide portion 31. And a lower extension portion 32 that can constitute a leg portion that can be attached to the mounting surface M. On the sheet support surface 3s, a guide scale me according to the sheet size is displayed.

  The guide portion 31 has an elongated block shape, and the sheet support surface 3s constituting the upper surface is set to be substantially flush with the sheet receiving surface 11 of the punch body 1 at the guide position (g). . In other words, the sheet support surface 3 s of the guide body 3 is set at substantially the same height as the sheet receiving surface 11 of the punch body 1.

  The guide portion 31 includes a shaft support portion r having a shaft hole r1 detachably attached to the support shaft J of the punch body 1 at a base end portion which is one end portion, and an outer peripheral surface of the shaft support portion r. A protrusion 33 for moderation engagement formed so as to extend in the vertical direction, a rail groove 34 formed on both sides for guiding the stopper 4 to be slidable in the longitudinal direction, and a moderation mechanism formed on the lower end. A combination recess 35 and a slit 36 formed at a position adjacent to the moderation engagement protrusion 33 and having a lower end opened are provided.

  The shaft support portion r is located at the base end portion of the guide body 3, and is formed so as to surround the first tubular portion r2 having the shaft hole r1 and the outside of the first tubular portion. And a second cylindrical portion r3. The first cylindrical portion r2 includes an inward convex portion rt that projects inward at the lower end. The inward convex portion rt is set to be positioned at the constricted portion J4 of the support shaft J in a state where the shaft support portion r is mounted on the support shaft J, and can exhibit a retaining function. Yes. The second cylindrical portion r3 is set to a size that can be fitted onto the flange portion J1 of the support shaft J. The second cylindrical portion r3 is formed with a slit 36 that extends in the up-down direction and is open at the lower end, and the moderation engagement convex portion 33 extends in the up-down direction on the outer surface at a position adjacent to the slit 36. Is formed. The slit 36 is for facilitating the movement of the convex portion 33 in the front-rear direction (projection direction). When the convex portion 33 is not engaged with the concave portion v, the convex portion 33 is pressed by the inner peripheral surface of the upright wall W and can move rearward.

  The protrusion 33 for moderation engagement can be engaged with the concave groove v formed in the side wall s5 in the bottom receiving body u1 when the guide G is located at the guide position (g).

  The rail groove 34 is formed on the outer surface side of the both side walls of the guide portion 31, and includes a convex portion 34 t for engaging the stopper 4 with the guide body 3 in a moderate manner.

  The recess 35 for moderation engagement is formed in the lower part of the guide part 31, and can engage with the protrusion D1 of the guide attachment part u2 when the guide G is located at the retracted position (s). .

  The stopper 4 has an abutment portion 41 standing so as to be able to abut on the end portion of the paper P, and an attachment portion mounted so as to hold the upper portion of the guide body 3 with the lower end portion positioned in the rail groove 34. 42, and the contact portion 41 and the mounting portion 42 are integrally formed of resin.

  The abutting portion 41 is a wall-like member standing on the upper end of the mounting portion 42. At least a part of the abutting portion 41 is set to be positioned above the sheet receiving surface 11 of the base B in a front view when the guide body 3 is at the guide position (g).

  The mounting portion 42 has a downward U-shape, and is provided at a position corresponding to the rail groove 34 of the guide main body 3 and protrudes inward to engage with a convex portion 34 t that protrudes intermittently in the rail groove 34. A portion 42t is provided. The inwardly projecting portion 42t is mainly composed of a ring-shaped member having a recessed portion 42h for fitting with the convex portion 34t on the side that can come into contact with the convex portion 34t of the rail groove 34. Since the inward projecting portion 42t has a ring-shaped member, when the rail groove 34 slides, the inward projecting portion 42t is pressed by the convex portion 34t in the rail groove 34 and temporarily elastically deforms. For this reason, the stopper 4 can not only stop at a predetermined position with respect to the guide body 3 by the engagement of the convex portion 34t and the recessed portion 42, but also slide smoothly with respect to the guide body 3. To get.

  The punch A is provided with moderation mechanisms c1 and c2 between the guide main body 3 and the punch main body 1 for moderating stop (click stop) of the guide main body 1 at the retracted position (s) and the guide position (g). . In the punch A, the moderation mechanisms c1 and c2 function effectively in both the retracted position (s) when the guide G is stored and the guide position (g) when the guide G is used. That is, the punch A is provided with a first moderation mechanism c1 for stopping the guide body 3 at the guide position (g) between the guide body 3 and the punch body 1. The moderation mechanism c <b> 1 mainly includes the convex portion 33 of the guide body 1 and the concave groove v of the punch body 1. The punch A is provided with a second moderation mechanism c2 between the guide body 3 and the punch body 1 for stopping the guide body 3 at the retracted position (s). The mechanism c2 is mainly composed of a recess 35 of the guide body 3 and a protrusion D1 of the punch body 1. In addition, the recessed part 35 and protrusion D1 which comprise the 2nd moderation mechanism c2 may not be. For example, instead of the configuration of the concave portion 35 and the protrusion D1, the guide main body 1 is provided with a convex portion 33 ′ (c1 ′) as shown in FIG. 5, and the concave groove v of the punch main body 1 at the retracted position (s). You may comprise so that it may be concerned with.

  The punch A is configured such that the stopper 4 can slide relative to the guide body 3. The punch body 1 is prevented from rotating to prevent the guide body 3 from rotating to the retracted position (s) when the stopper 4 is positioned in front of the locking wall 12 in a side view. Means Z are provided. In the present embodiment, the rotation preventing means Z is mainly composed of the stopper 4 and the extending wall 17 provided on the receiving bottom U of the punch body 1. That is, when the guide body 3 is rotated toward the retracted position (s) in a state where the stopper 4 is positioned in front of the locking wall 12, the punch body 1 disposed on the track of the stopper 4. The stopper 4 collides with the extended wall 17, and as a result, the movement of the guide main body 3 is prevented halfway, so that the guide main body 3 cannot reach the retracted position (s). In other words, since the punch A is provided with the rotation prevention means Z, the guide body 3 is moved to the retracted position (s) only when the stopper 4 is located behind the locking wall 12 in a side view. ) Can be located. For this reason, the stopper 4 does not interfere with the paper P when the guide body 3 is located at the retracted position (s).

  The punch A includes an impact relaxation means X that reduces an impact applied to the punch body 1 and the guide G when a strong external force is applied to the guide G. Note that “when a strong external force is applied to the guide G” is an external force having a strength that rotates the guide G beyond the intended rotation range of the guide G with respect to the punch body 1. When the punch A is accidentally dropped on the floor or the like, the external force received by the guide G colliding with the floor or the like, or when the punch A is moved, the guide G accidentally collides with an article such as furniture. Examples include external force.

  In the present embodiment, the impact relaxation means X is configured to separate the guide G from the punch body 1 using an external force applied to the guide G. Specifically, the impact mitigating means X performs the rotation operation of the guide G when a rotational force exceeding a specified value is applied to the support shaft J of the punch body 1, the shaft support portion r of the guide G, and the guide G. An operation conversion mechanism y that converts the support shaft J into an extraction operation in a direction in which the support shaft J is detached from the shaft support r is provided. The “rotating force not less than a specified value” means a rotating force that can exceed a predetermined rotation range of the specified guide G. In other words, within a predetermined rotation range in which the guide G is structurally restricted under normal rotational force (in this embodiment, approximately 90 ° between the guide position (g) and the retracted position (s) with the shaft support portion r as a fulcrum). Within the rotation range), but when the guide G receives an external force and a rotation force exceeding a specified level, the guide G rotates beyond a predetermined rotation range that is structurally restricted. become. In the present embodiment, the motion conversion mechanism y is mainly configured by the lower edge portion 37 of the guide G, that is, the lower edge 37 of the guide portion 31 and the standing wall W formed on the receiving bottom U.

  The shock relaxation means X is a base end of the standing wall W when an external force applied to the guide G causes a rotational force exceeding a specified value in a direction in which the free end of the guide G at the guide position (g) further moves forward. The rotation restriction by the side edge w2 is released by elastic deformation of the resin, and the lower edge 37 of the guide portion 31 is configured to ride on the standing wall W having the upper edge w1 inclined. At this time, the slit 36 formed in the second cylindrical portion r3 makes it easy to release the engagement with the flange portion J, and the lower edge 37 of the guide portion 31 rides on the upper edge w1 of the standing wall W. Encourage temporary elastic deformation to rise. The rotation operation of the guide G is guided by the inclination of the upper edge w1 of the upright wall W, and is converted into an upward extraction operation in which the base end portion of the guide G is detached from the support shaft J. As described above, the impact relaxation means X is supported by the shaft J of the punch body 1 and the guide G by the motion converting action by the motion converting mechanism y having the lower edge 37 of the guide portion 31 and the standing wall w1. The engagement with the part r is forcibly released.

  Further, the punch A is provided with second impact mitigating means H for mitigating the impact applied to the base B and the receiving bottom U. The second impact mitigating means H is configured to separate the receiving base U from the base B in response to an impact applied to the receiving base U, and mainly suppresses damage to the resin receiving base U when dropped. Is to do. In this embodiment, the second impact mitigating means H includes a left rib h1 formed to protrude upward from the left edge portion of the bottom wall s1 of the bottom receiving body u1, and an upward edge to the right edge portion of the bottom wall s1. The right rib h2 that protrudes and the left and right side walls b4 and b5 of the base B that can engage with the left and right ribs h1 and h2 when subjected to a strong impact such as when dropped are mainly configured. . For example, when the punch A falls, the second impact relaxation means H receives the impact from the base B obtained by the receiving base U only by the front and rear walls s2, s3 and the left and right side walls s4, s5. It demonstrates the function of preventing That is, when the punch A falls with the right side down (in the direction of E in FIG. 7), the left rib h1 is engaged with the left side wall b4 of the base B to receive a part of the impact. Become. On the other hand, when the punch A falls with the left side down (in the direction of symbol K in FIG. 7), the right rib h2 is engaged with the right side wall b5 of the base B to receive a part of the impact. Become.

  In this way, the punch A of the present embodiment can relieve the impact not only on the guide G but also on the entire bottom U by the impact mitigating means X and the second impact mitigating means H. In other words, the punch A can alleviate the impact applied to the guide portion G and can reduce the impact applied to the receiving bottom U, regardless of the posture of the punch A.

  As described above, the punch A according to the present embodiment has the paper receiving surface 11 and includes the locking wall 12 for positioning the paper P in the front-rear direction at the back end of the paper receiving surface 11. The main body 1, the punching mechanism 2 that penetrates the paper P set on the paper receiving surface 11 of the punch main body 1 through the punching blade 21 to make a hole h in the paper P, and the left-right direction of the paper P supported by the punch main body 1 And a guide G for positioning. A guide G is rotatably supported between one end of the punch body 1 and the guide body (g) and the retracted position (s). In (g), a stopper 4 for guiding the end of the paper P is provided. For this reason, it is possible to provide a punch A that is easy to perform an operation for setting the guide G to the guide position (g) that is an intended position. That is, since one end portion of the guide G is rotatably supported by the punch body 1, if the guide G is rotated, the guide G can be brought into a state where the paper P can be positioned in the left-right direction. .

  In general, the punch A used for a specific office work often concentrates on the paper P to be punched having a specific size. For example, if the business handles a large amount of A4 size paper P, the paper P to be punched will be concentrated on the A4 size. Furthermore, the direction in which the paper P is bound is often specified according to rules in the business, files owned, and the like. For example, there may be a case where the ratio of punching holes h at the edge in the longitudinal direction of A4 paper is extremely high. In contrast to the above example, in the case of the punch A according to the present embodiment, if the stopper 4 of the guide G is set in the “A4 horizontal” position in advance, the guide G is simply moved from the retracted position (s) to the guide position. Only by rotating the operation to (g), it is possible to obtain a state in which the positioning in the left-right direction can be performed so as to form the hole h at the edge in the longitudinal direction of the A4 size paper P.

  Since the punch body 1 and the impact mitigation means X for mitigating the impact applied to the guide G when a strong external force is applied to the guide G are provided, the connecting portion between the punch body 1 and the guide G is deformed or damaged in accordance with the impact. It will be suppressed.

  Since the shock relaxation means X is configured to separate the guide G from the punch body 1 using an external force applied to the guide G, the guide G and the punch body 1 are connected. The occurrence of deformation or breakage can be suppressed.

  The shock relaxation means X includes a support shaft J provided on the punch body 1, a shaft support portion r provided on the guide G to which the support shaft J is detachably mounted, and a rotational force exceeding a specified value due to an external force applied to the guide G. Is provided with an operation conversion mechanism y that converts the rotation operation into an extraction operation in a direction in which the support shaft J comes out of the shaft support portion r. For this reason, the connection between the support shaft J and the shaft support portion r is preferably released by the motion conversion mechanism y. In particular, in the present embodiment, the motion conversion mechanism y is the upright wall W and exhibits a cam function that causes a motion change by the inclined upper edge w1, so that the shaft support portion r of the guide G is supported by the support shaft J. Thus, it is possible to suitably convert to the extraction operation in the direction of exiting.

  At the guide position (g), the sheet support surface 3 s of the guide body 3 is set to be substantially flush with the sheet receiving surface 11 of the punch body 1. For this reason, when the paper P to be punched is set on the paper receiving surface 11, the paper P is preferably prevented from drooping downward on the guide body 3 side, thereby contributing to the stability of the posture of the paper P. It will be a thing.

  Since the stopper 4 of the guide G is set so as to be positioned behind the locking wall 12 at the retracted position (s), when the paper P is not positioned by the guide G, the stopper 4 is It will not interfere with.

  Since the stopper 4 is configured to be movable with respect to the guide body 3, the positioning location can be changed in accordance with the size of the paper P.

  The punch main body 1 is provided with a rotation preventing means Z for preventing the guide main body 3 from rotating to the retracted position (s) when the stopper 4 is positioned in front of the locking wall 12. . For this reason, when the guide G is not used, it is preferable to suppress the stopper 4 from interfering with the paper P. That is, when the sheet P is not positioned, the guide G is normally positioned at the retracted position (s). However, to move the guide G to the retracted position (s), the position of the stopper 4 is changed. Since it is a requirement to move the guide main body 3 to the distal end side, the user is preferably made to recognize the position of the stopper 4 at the retracted position (s).

  The punch body 1 includes a base B having a paper receiving surface 11 on the upper side and an open side on the lower side, and a receiving base U that closes the lower opening m of the base B so as to be opened and closed. And it has the guide attaching part u2 for supporting the guide G to the one side of the receiving bottom U. As shown in FIG. For this reason, since the guide G is rotatably supported by the receiving base U, the design flexibility is excellent.

  Since a moderation mechanism is provided between the guide body 3 and the punch body 1 to stop the guide body 3 at the retracted position (s) and the guide position (g), the retracted position (s) and the guide position ( In g), the guide body 3 can be suitably positioned with respect to the punch body 1.

  The present invention is not limited to the embodiment described in detail above.

  The guide main body may be any one as long as one end portion is rotatably supported by the punch main body and can be rotated from the guide position to the retracted position. That is, the guide main body is not limited to the one that is supported so as to be rotatable in a substantially horizontal direction as in the above-described embodiment. For example, the guide body may be rotated obliquely with respect to the punch body, or may be rotated in a direction orthogonal to the punch body (vertical direction).

  The punching mechanism is not limited to a manual operation as shown in the present embodiment. The drilling mechanism includes an electric mechanism.

  The stopper of the guide is not limited to one configured separately from the guide main body, and may be configured integrally.

  The impact mitigating means is not limited to the means for detaching the guide from the punch body. For example, in order to prevent stress from locally concentrating on the connecting portion between the punch body and the guide, a spherical portion is provided at the base end of the guide and a holding portion for holding the spherical portion is provided in the punch body, You may comprise so that it may connect. Contrary to this, a spherical part may be provided in the punch body, and a holding part for holding the spherical part may be provided at the proximal end of the guide, and these may be connected. Or what connects a guide and a punch body via a universal joint etc. can be considered. Alternatively, the guide may be configured such that a plurality of rod-like members are rotatably connected, and when the guide is located, the guide is held in a shape capable of positioning in the left-right direction.

  Contrary to the embodiment described above, the guide may be provided with a support shaft and the punch body may be provided with a shaft support portion.

  Various modes can be applied to the motion conversion mechanism, and the motion conversion mechanism is not limited to the one having an upright wall. In other words, the motion conversion mechanism may be any mechanism having a configuration using a so-called cam function. For example, an inclined part that contacts the punch body may be provided on the guide side, or an inclined part may be provided on both the punch body and the guide.

  The standing wall is not limited to the one located outside the guide, and may be located inside the guide.

  Needless to say, the punch may have a depth adjustment function.

  In the above-described embodiment, the base has been described as having a substantially vertically long rectangular shape in plan view. However, the base is not limited to this, and may have any shape.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Punch main body 2 ... Punching mechanism 3 ... Guide main body 4 ... Stopper A ... Punch B ... Base G ... Guide U ... Bottom

Claims (5)

A punch body having a paper receiving surface and a locking wall for positioning the paper in the front-rear direction at the back end of the paper receiving surface, and a punching blade on the paper set on the paper receiving surface of the punch body A punch comprising a perforation mechanism for penetrating and punching the paper, and a guide supported by the punch body for positioning the paper in the left-right direction,
The guide is rotatably supported between the guide position and the retracted position with one end rotatably supported by the punch body, and the guide is provided at the guide body and guides the end of the paper at the guide position. A punch characterized by comprising a stopper to perform. 2. The punch according to claim 1, further comprising an impact mitigating means for mitigating an impact applied to the punch body and the guide when a strong external force is applied to the guide. An impact mitigating means for mitigating an impact applied to the punch body and the guide when a strong external force is applied to the guide;
The impact mitigating means includes a support shaft provided on one of the punch body and the guide, a shaft support portion provided on the other side to which the support shaft is removably mounted, and a regulation by the external force on the guide. 3. The punch according to claim 1, further comprising: an operation conversion mechanism that converts the rotation operation into an extraction operation in a direction in which the support shaft is detached from the shaft support portion when the above rotational force is applied. The stopper is configured to be movable with respect to the guide body, and when the punch body is positioned forward of the stopper wall, the guide body is in the retracted position. The punch according to claim 1, 2 or 3, further comprising a rotation prevention means for preventing the rotation. The punch body includes a base having the sheet receiving surface on the upper side and an open side on the lower side, and a bottom for closing the lower opening of the base so as to be openable and closable. The punch according to claim 1, further comprising a guide mounting portion for supporting the guide on a side.

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