JP4041350B2 - Center gauge - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a center gauge attached to a punch for punching holes and used for indexing a paper center.
[0002]
[Prior art]
For example, since a punch for punching is mainly intended to punch a hole for binding, the position of the hole needs to be always constant. Therefore, conventionally, this type of punch is usually provided with a center gauge for indexing the center of the paper on a pedestal on which a bundle of paper is placed.
[0003]
Then, as this type of center gauge, a pair of arms are provided so as to be able to project and retract in opposite directions from the pedestal, and the base end sides of these arms are interlocked with each other via a synchronization mechanism in the pedestal to It has been considered that the center of the paper is indexed by pulling out from the pedestal and sandwiching the paper between the standing pieces provided on the tip end side of the arm.
[0004]
[Problems to be solved by the invention]
However, such arms protrude from the right and left edges of the pedestal one by one toward the outside, and the support width of the paper is due to the width of the arm. For this reason, if the arms are widened in order to secure a sufficient support width, the left and right arms are in the same plane to support the paper horizontally and phase in a direction perpendicular to the protrusion and subtraction direction to avoid interference. Therefore, it is difficult to support the paper in a well-balanced manner because the support position of the paper is greatly shifted from side to side.
[0005]
On the other hand, the standing piece provided at the tip of the arm is usually fixed to the arm in a standing state. For this reason, for work that simply requires a support surface and does not require a gage function, or for those who do not use such a gage function on a daily basis, the presence of such upright pieces is an adverse effect of using a punch or the like. It may become.
[0006]
An object of the present invention is to eliminate these inconveniences and improve the usability of the center gauge more effectively than the conventional one.
[0007]
[Means for Solving the Problems]
In order to achieve this object, the present invention employs the following configuration.
[0008]
That is, the center gauge according to the present invention is provided with a pair of arms that can protrude and retract in opposite directions from the pedestal in order to ensure an effective support width, and the base end side of these arms is provided with a synchronization mechanism in the pedestal. The arms are pulled out from the pedestal, and the center of the paper is indexed by sandwiching the paper between the standing pieces provided to stand on the tip side of the arms. These are composed of a plurality of arm bodies which are arranged apart from each other and whose end sides are connected to each other.
[0009]
In such a case, even if the support width of the arm main body itself is small, the support surface is substantially expanded by the plurality of arm main bodies, so that interference between the left and right arm main bodies is avoided. Even if the arm body itself is narrow, an effective support width can be secured.
[0010]
In order to avoid the interference between the arm main bodies and make the support for the paper in a good balance, there is one in which the arm main bodies of the arms are arranged in the same plane with the phases shifted from each other.
[0011]
In order to reduce the manufacturing cost, it is effective to use an arm member common to each arm facing each other at a position rotated by 180 ° and shifted in phase.
[0012]
In order to make the gauge function accurate, an upright piece is provided at the tip of the arm member so that the phase is matched when the arm member is rotated 180 degrees and faced at a position shifted in phase. It is desirable.
[0013]
In order to smoothly perform the pulling-out operation while properly operating the synchronization mechanism, when the pulling knob for pulling is turned to the tip of the arm member at a position where the arm member is rotated by 180 ° and shifted in phase, It is preferable to provide them so that the phases match.
On the other hand, the center gauge of the present invention is provided with a pair of arms that can protrude and retract in opposite directions from the pedestal so that the gauge function can be used as necessary. In conjunction with the synchronization mechanism in the above, when the leading end side of both arms is pulled out from the pedestal, and the paper center is indexed by sandwiching the paper between the standing pieces provided standing on the leading end side of the arm, The upright piece is provided so that it can be taken in and out of the arm.
In this way, the stand-up piece can be pulled out when necessary and stored when it is not needed, so the gauge function can be used effectively according to the purpose and application, or according to the user's convenience. be able to.
[0014]
As a specific embodiment, a vertical wall perpendicular to the protruding and retracting direction of the arm is provided on the tip end side of the arm, and a storage space that opens upward is provided in the thickness of the vertical wall, and the storage space stands upright. The thing which can accommodate a piece is mentioned.
[0015]
Since the present invention is configured as described above, the present invention is extremely useful when used by being attached to a base of a punch that requires accurate positioning.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 shows a punch to which the center gauge of this embodiment is applied. This punch has a pedestal 1, a holding structure 2 that rises integrally from the upper end (the direction in which the paper is inserted) of the pedestal 1, and is accommodated in the holding structure 2 so as to be movable up and down to hold a punching shaft (not shown). A shaft holder 4 and an operation handle 5 rotatably supported on the upper end side of the holding structure 2, and the rotation of the operation handle 5 in the holding structure 2 can be performed by rotating the operation handle 5. The ascending / descending operation is linked.
[0018]
The pedestal 1 is a hollow thick plate that has sufficient rigidity to support the holding structure 2 and the operation handle 5 that is an accessory thereof, and the upper surface is set as a paper mounting surface 1a. Resin-made circular mats 11 that receive the cutting edges of the punching shaft are embedded at two locations corresponding to the punching shaft in the vicinity of the upper end with the upper surface being substantially flush with the mounting surface 1a.
[0019]
The holding structure 2 is such that the storage portion of the shaft holder 4 and the mounting portion of the operation handle 5 are brought forward (that is, on the mounting surface 1a side) with respect to the portion that contacts the pedestal 1 and overhangs. The upper end side of the bundle of paper is inserted between the lower surface 2a of the portion and the upper surface 1a of the base 1.
[0020]
In such a configuration, in the present embodiment, the pedestal 1 incorporating the center gauge A shown in FIGS. 2 to 5 is used as the pedestal 1. 3 and 4 show the inside of the pedestal 1 with the lid removed, and the portion marked with a shaded x in the figure protrudes upward from the other portions. In position.
[0021]
The center gauge A is provided with a pair of arms 6 on the pedestal 1 so that the center gauge A can project and retract in a direction opposite to the pedestal 1, and the base end side of these arms 6 is interlocked via a synchronization mechanism 7 provided in the pedestal 1. Thus, the leading ends of both arms 6 are pulled out from the pedestal 1, and the center of the paper is indexed by sandwiching the paper between the standing pieces 60 provided standing on the leading end side of the arms 6.
[0022]
The synchronization mechanism 7 associates a pinion gear 71 as a pair of rotors provided at positions displaced from the center C of the base 1 in the projecting and retracting direction of each arm 6 and these pinion gears 71 so as to be capable of synchronous operation. An intermediate gear 72 serving as a synchronizer, and by engaging each pinion gear 71 with a rack tooth 61 provided on the corresponding arm 6, a rack and pinion mechanism is formed, and the projecting and retracting operations of both arms 6 are synchronized. To be caused.
[0023]
More specifically, the intermediate gear 72 is a single unit that is between the two pinion gears 71 and directly meshes with the pinion gears 71 at positions opposed to each other with the axis m interposed therebetween. The 72 axial centers are arranged substantially continuously on a straight line L having a slight angle α with respect to the projecting and retracting direction of the arm 6. In this case, the axis m of the intermediate gear 72 is on the center C of the base 1.
[0024]
On the other hand, the form of the arm 6 described above is two strips that are spaced apart from each other in the direction perpendicular to the protruding and retracting direction (the direction in which the paper is inserted and removed) and whose leading ends are connected to each other via the vertical wall 62. It is comprised from the arm main bodies 6a and 6b which comprise.
[0025]
Although the arm body 6a, 6b has a single support width d of only about 2 to 3 cm, the support width D of the arm 6 composed of the pair of arm bodies 6a, 6b is substantially 10 cm including the gap between them. It is expanded to the extent that it can support paper on a wide surface.
[0026]
Each arm 6 rotates a common arm member having a U-shape in a plan view by 180 °, and is arranged to face each other in the same plane with a slight phase shift in a direction perpendicular to the projecting and retracting direction (center line direction of the pedestal 1). Interference between these arm bodies 6a and 6a, between 6a and 6b, and between 6b and 6b is avoided. That is, there is a positional relationship in which one arm main body 6a is inserted into a gap between the other arm main bodies 6a and 6b. The other arm body 6b of each arm 6 is guided by a rail portion 1R formed by a projection portion shaded in FIGS. A protruding portion 64 is provided at the tip of the arm body 6b, and the protruding portion 64 abuts against a stepped portion r provided in a part of the rail 1R at the drawing end to prevent the protruding portion 64. That is, the arm 6 can be moved from the pulling position of FIG. 3 to the position of FIG. 4 where the inner surface of the vertical wall 62 is in contact with the recess 1c provided on the side wall 1b of the base 1 and abuts. In the meantime, a necessary and sufficient length is given to always engage with the pinion gear 71. The rack teeth 61 are provided on the inner surface of a hanging wall that is suspended from the edge of the one arm body 6a along the longitudinal direction.
[0027]
Further, the vertical wall 62 that connects the distal end side of the arm body 6a is provided with a storage space 62a that opens upward in the thickness thereof, and a standing piece for sandwiching the aforementioned paper in the storage space 62a. 60 is accommodated by being attached to the shaft n. 3 and 4 show the standing piece 60 buried in the storage space in a solid color, and FIG. 5 shows this with a broken line. When the upright piece 60 is rotated about 180 ° around the axis n as shown by the arrow F in FIG. 5 from this state, the upright piece 60 can be pulled out to a position protruding upward from the upper surface of the arm 6 in FIG. . A recessed portion 62a for engaging a claw 60a provided on the standing piece 60 is provided at the storage position and the drawer position. The phases of the arms 6 are shifted from each other, but the axially attached positions to the vertical walls 62 are set so that the raised pieces 60 that are drawn out are in phase with each other and face each other. Further, an operation knob 63 is provided on the outer side of the pulled up stand piece 60 so as to protrude outward from the vertical wall 62.
[0028]
As described above, the center gauge A according to the present embodiment is provided with a pair of arms 6 on the pedestal 1 so as to protrude and retract in the opposite direction from the pedestal 1, and the base end sides of these arms 6 are arranged in the pedestal 1. In this way, the leading ends of both arms 6 are pulled out of the base 1 in synchronization with each other through the synchronization mechanism 7 and the center of the paper is indexed by sandwiching the paper between the standing pieces 60 provided standing on the leading ends of the arms 6. It is a thing. Each arm 6 is composed of two arm main bodies 6a and 6b which are arranged apart from each other and whose end sides are connected to each other.
[0029]
In this way, even if the support width d of the arm bodies 6a and 6b itself is small, the support surfaces can be effectively expanded by these two arm bodies 6a and 6b. Even if the arm bodies 6a and 6b themselves are narrow in order to avoid interference between the arm bodies 6a and 6b, an effective support width D can be secured.
[0030]
In particular, since the arm bodies 6a and 6b of the arms 6 are arranged in the same plane with the phases shifted from each other, the paper support surfaces are formed at substantially the same position on the left and right sides while avoiding interference between the arm bodies 6a and 6b. Thus, a well-balanced support function can be realized.
[0031]
Regarding the component parts, the arm members common to each arm 6 are used facing each other at a position rotated by 180 ° and shifted in phase, so that the manufacturing cost when manufacturing the arms individually is halved. Can do.
[0032]
However, even when the arm member is used as a common member in this way, the phase is matched when the standing piece 60 is opposed to the tip of the arm member at a position where the arm member is rotated 180 ° and shifted in phase. Therefore, an accurate gauge function can be secured even if the manufacturing efficiency is improved.
[0033]
The same applies to the drawer knob 63. When the drawer knob 63 is turned to the front end of the arm member at a position where the arm member is rotated 180 degrees and shifted in phase, the phases match. Therefore, even if the production efficiency is improved, the pulling-out operation can be smoothly performed from a position where the synchronization mechanism 7 can be appropriately operated.
On the other hand, the center gauge of this embodiment is provided with the standing piece 60 so that it can be taken in and out of the arm 6.
In this way, the stand-up piece 60 can be pulled out when necessary and stored when it is not needed, so that the gauge function can be effectively activated according to the purpose / use or the convenience of the user. Can be used properly. In addition, if the standing piece can be stored, bulkiness during storage and transportation can be effectively reduced.
[0034]
Specifically, a vertical wall 62 orthogonal to the protruding and retracting direction of the arm is provided on the distal end side of the arm 6, and a storage space 62 a that opens upward is formed in the thickness of the vertical wall 62. Since the stand-up piece 60 is accommodated in this way, an appropriate storage location can be secured at hand. In particular, since the vertical wall 62 has a unique function of connecting the tip ends of the arm bodies 6a and 6b, the vertical wall 62 can be stored without providing a separate storage member. The space 62a can be easily secured.
[0035]
Because of the above configuration, this gauge can be extremely useful when used attached to the base 1 of the punch that requires accurate positioning.
[0036]
The specific configuration of each part is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
[0037]
【The invention's effect】
As described above, according to the present invention, even if the left and right arms that perform the gage function are narrow so that they do not interfere with each other, the support that spreads in a plane by the plurality of arm bodies is provided. It is possible to form the surface in a balanced manner on the left and right sides, thereby effectively increasing the gauge function.
[Brief description of the drawings]
FIG. 1 is a perspective view of a punch to which a center gauge according to an embodiment of the present invention is applied.
FIG. 2 is an enlarged perspective view of the same part.
FIG. 3 is a plan view in which the same part is omitted.
FIG. 4 is a plan view in which the same part is omitted.
FIG. 5 is a side view of the same.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Base 6 ... Arm 6a, 6b ... Arm main body 60 ... Standing piece 62 ... Vertical wall 62a ... Storage space

Claims (7)

A pair of arms are provided so that they can protrude and retract in opposite directions from the pedestal. In the center gauge attached to the punch for punching, in which the paper center is indexed by sandwiching the paper between the standing pieces provided upright,
Each of the arms is composed of a plurality of arm bodies that are spaced apart from each other in a direction perpendicular to the projecting and retracting direction and connected to each other at the distal ends.
The two arms are arranged in the same plane with a slight shift in the direction perpendicular to the projecting and retracting direction so that the arm body of one arm is inserted into the gap between the arm bodies of the other arm. Center gauge characterized by. 2. A plurality of arm members constituting each arm are used as a common member, one of the common arm members is horizontally rotated by 180 °, faced to the other, and the leading ends of the two are connected to each other. Center gauge as described. The center gauge according to claim 1 or 2, wherein the upright pieces provided on each of the arms are opposed to each other along the protruding and retracting direction. The center gauge according to claim 1, 2, or 3, wherein a pulling knob is provided at the tip of both arms, and each knob is opposed along the protruding and retracting direction. The center gauge according to claim 1, 2, 3, or 4, wherein the upright piece is provided so as to be able to be taken in and out of the arm. A vertical wall perpendicular to the protruding and retracting direction of the arm is provided on the tip side of the arm, and a storage space that opens upward is provided in the wall thickness of the vertical wall so that the standing piece can be stored in the storage space. The center gauge according to claim 5. The center gauge according to claim 1, wherein the pedestal is a punch pedestal having a punching function.

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