JP3505620B2 - Small punch - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a punch for punching a binding hole in a sheet, and more particularly to an improvement in a small punch which is easy to store and carry. 2. Description of the Related Art Conventionally, small punches which are easy to store and carry are generally known. For example, Japanese Utility Model Publication No. 60-183
Japanese Patent No. 20 discloses a small and narrow structure in which a pair of levers for vertically moving a male punch are linearly overlapped between a pair of female punches and maintained by a spring in a direction in which the pair of levers are always erected. A punch is disclosed. In the above-mentioned small punch, one lever having a cover plate on the upper surface is extended beyond a connection point of both levers, and a pressing portion and a stopper mechanism are provided at a tip of the extended lever, and the pair of levers are linearly connected. In the folded state, the stopper mechanism can be detachably engaged with a punch body or a punch case. In the above-mentioned small punch, a pair of punch male dies descends and penetrates the paper by pressing the pressing portion of a lever which is set up and raised in a punch insertion space of the punch case, and A required spelling hole is formed on one edge of the sheet. After the use of the small punch, the pair of levers are folded by pressing the pressing portion, and the pressing portion is slid toward the distal end with the lid plate provided on the lever positioned substantially horizontally with the upper surface of the punch case. Move. As a result, the stopper protruding from the distal end of the pressing portion is locked on the back side of the upper surface of the punch case, and the pair of levers is held in a state housed in the punch case. However, in the above-mentioned conventional small punch, since the paper is inserted into the gap of the punch case and set, it is difficult to accurately position the paper with respect to the punch case, and the hole positions of the spelling holes vary. However, the paper with the spelling holes perforated in such a manner cannot be filed neatly (a state in which the end faces of a plurality of bound papers are aligned), and this impairs the aesthetic appearance of the file book. . Further, since the stopper mechanism of the small punch locks the stopper protruding from the tip of the lever on the back side of the upper surface of the punch case, the longitudinal dimension of the punch case is increased by the length of the protruding stopper. It has to be set, and the punch case, which is advantageous in that it is compact, has been a factor of increasing the size. further,
If a stopper projects from the tip of the lever when punching a spelling hole in the paper, the stopper may interfere with the punch case and be damaged. SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and has been made in consideration of the above circumstances, and enables a sheet to be accurately positioned and to be compactly stored after use. The purpose is to provide a punch. [0007] In order to achieve the above object, the invention according to claim 1 of the present invention provides a method in which a pair of levers are overlapped on a line connecting a pair of punches, and the pair of levers are overlapped. The lever is held upright by an elastic member, and a pair of punches penetrate through the paper to push a required hole in the paper by pressing the operating side lever to incline the pair of raised levers. In a small punch to be punched, a ruler mechanism for positioning a sheet in a punch arrangement direction is provided, and the ruler mechanism also has a lock mechanism for holding a pair of levers in a tilted state. According to the present invention, a pair of levers can be held in a tilted state by the lock mechanism that also serves as the ruler mechanism. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A small punch according to an embodiment of the present invention will be described with reference to FIGS. First, the outline of the small punch 1 of the present embodiment will be described. As shown in FIG. 1, this small punch 1 has a pair of punches 2 (see FIG. 2).
A pair of levers 3 and 4 are superimposed on a line connecting them, and the pair of levers 3 and 4 are held upright by a leaf spring (elastic member) 5, and the operating side lever 3 is pressed and raised. The pair of punches 2 penetrate a sheet (not shown) so as to punch a required hole in the sheet by tilting the pair of levers 3 and 4. A ruler 6 (ruler mechanism) rotatably provided on one side is provided, and when used, the ruler 6 is opened to accurately position the sheet with respect to the pair of punches. The lock mechanism is made to function by closing and sliding the shutter 6 to hold the pair of levers 3 and 4 in a tilted state and to hold the ruler 6 in a closed state. As a result, the small punch 1 is
The (ruler mechanism) can have both a paper positioning mechanism and a lock mechanism for holding the pair of levers 3 and 4 and the ruler 6 in a housed state. These mechanisms have a simple and extremely compact structure. It can be realized by. Next, details of the small punch 1 of the present embodiment will be described. As shown in FIGS. 1 and 4B, a gap 9 for inserting a sheet is formed in the base 8, and a reference surface against which the end face of the sheet abuts is formed in the gap 9. Reference numeral 10 extends in the longitudinal direction (punch arrangement direction).
Further, the gap 9 is formed in a tapered shape that gradually narrows in the sheet insertion direction (the direction A in FIG. 4B) toward the reference surface 10 to facilitate insertion of the sheet. It has a structure. As shown in FIG. 2 and FIG.
A pair of punch fitting holes 11 into which each of a pair of punches 2 is slidably fitted is provided at a predetermined interval, and a pair of levers 3 and 4 described below are tilted. Thus, the pair of punches 2 are stroked so as to penetrate the gap 9 of the base 8, and a spelling hole is formed on one edge of the sheet. The base 8 is provided with a leaf spring (elastic member) 5 extending between the pair of punch fitting holes 11 in the punch arrangement direction and having a substantially central portion fastened and fixed by a screw member 12. Both ends of the leaf spring 5 are engaged with corresponding engagement holes 2 a of the punch 2.
As shown in FIG. 2, the leaf spring 5 is formed so that both ends thereof are inclined upward when viewed from the front (when viewed from the paper surface in FIG. 2). Hole 11
At a required position (height). As shown in FIGS. 2 and 3, a base is provided on the base 8 so as to be rotatable on one side of the base 8, and the free end is provided at the time of storage (in a tilted state). The operation side lever 3 whose side end surface 3a is flush with the other side surface 13 of the base 8, and the base portion is rotatably provided on the other side of the base 8 so that the free end side end is used as the operation side when used. A driven lever 4 which is in contact with the lower surface 3b of the lever 3 and overlaps the lower surface 3b of the operation side lever 3 during storage is disposed on a line connecting the pair of punches 2 respectively. As shown in FIGS. 1 and 3, cutouts 3 c and 4 a are formed below the base-side end of the operation-side lever 3 and the driven-side lever 4, respectively. By making these notches 3c and 4a abut on the upper surface 14 of the base 8, a structure in which the turning operation to the standing side is restricted at a predetermined position (angle). As shown in FIGS. 2 and 3, the small punch 1 has a pressing portion 15 formed on the lower surface 3b on the base side of the operating lever 3 and a lower surface 4b on the base side of the driven lever 4.
At this time, the spherical head of the punch 2 comes into contact, and FIG.
As shown in FIG.
And is held by the leaf spring (elastic member) 5 via the through-hole to be held upright. The leaf spring 5 is shaped so that the notches 3c and 4a of the pair of levers 3 and 4 abut against the upper surface 14 of the base 8 (the inclination of the arms on both sides of the fixed position with respect to the upper surface 14 of the base 8). Angle) is set. As shown in FIG. 5 and FIG.
A ruler 6 (ruler mechanism) is disposed adjacent to the operation side lever 3. The ruler 6 has a base 7 formed in a substantially columnar shape, and a ruler portion 16 is substantially tangential to the base 7. The structure has been extended to. In addition, (a)-(d) of FIG.
As shown in FIG. 7, the base 7 of the ruler 6 is provided with a groove 7a for preventing interference with paper. Also, the base 8 has
A wall portion 17 erected on the upper surface 14 and a block 18 provided to face one side of the wall portion 17 are formed,
A long hole 19 formed in the wall portion 17 and the block 18 in the punch arrangement direction in a front view (a paper view in FIG. 6).
The ruler 6 penetrates the center of the base 7, and both sides of a rotation shaft 20 whose axis is parallel to the width direction of the base 8 are supported by the elongated holes 19, and the ruler 6 extends in the punch arrangement direction ( Slot 19
(Longitudinal direction) and can rotate around the rotation shaft 20. As shown in FIG. 1, the ruler 6 (ruler mechanism) includes a base 8 against which a sheet (not shown) is abutted.
A paper abutting portion 21 having a reference surface 21a flush with the reference surface 10 and a paper support portion 22 having a paper support surface 22a for supporting one edge of the paper. At the side end, the outer side surface 23a is flush with the other side surface 13 of the base 8 during storage (see FIG. 5), and the inner side surface 23b is positioned at the time of use (see FIG. 2). Then A4
A side wall 23 that performs the function of positioning a sheet of size is provided. In the small punch 1 according to the present invention, the rotating shaft 20 of the ruler 6 is positioned at one side of the elongated hole 19 during use (when the ruler 6 is rotated and opened) ((d in FIG. 6). )
(See FIGS. 1 and 2) and the end 22b of the ruler 16 on the side of the base 7 of the paper support 22 in contact with one side surface 24 of the base 8 (see FIGS. 1 and 2). It has a structure that prevents sliding movement. The ruler (ruler mechanism) 6 of the small punch 1 of the present embodiment rotates the ruler portion 16 on a plane orthogonal to the upper surface 14 of the base 8 and parallel to the punch arrangement direction. Although the ruler 16 is stored on the base 8, the method of storing the ruler 16 is not limited to this. For example, the ruler 16 is rotated on a plane parallel to the upper surface 14 of the base 8 by rotating the ruler 16. 8 may be stored, or the ruler 16 may be configured to slide and move in the punch arrangement direction. The locking mechanism is provided on the side wall 23 of the ruler portion 16 and protrudes from both sides in the width direction of the base 8 (the left-right direction in FIG. 4B). The first groove 26 is provided on the wall 17 of the operating lever 3 and is engaged with one side of the locking piece 25. The first groove 26 is provided on the free end side end face 3a of the operating lever 3 and the other side of the locking piece 25 is engageable. And a pair of levers 3 and 4 are tilted to make the free end side end surface 3a of the operation side lever 3 and the other side surface 13 of the base 8 flush with each other. The ruler 6 in the closed state is shown in FIG.
(A) is slid in the direction B to engage the locking piece 25 with the first groove 26 and the second groove 27, thereby holding the pair of levers 3 and 4 in a tilted state. It has a structure to do. When the locking piece 25 is engaged with the first groove 26 and the second groove 27, the locking piece 25 is connected to the locking piece 25 via the punch 2 and the pair of levers 3 and 4. The leaf spring (elastic member) 5 is urged upward (upward on the plane of FIG. 4B) to restrict the ruler 6 from inadvertently sliding and holding the ruler 6 in a closed state. It has a structure to do. As shown in FIGS. 4A and 5A, the grip portion 2 having a plurality of grooves arranged side by side on the free end side of the outer surface 6a of the ruler 6 when the ruler 6 is closed.
8 are formed to improve the operability of the locking and unlocking operations of the lock mechanism. Reference numerals 29 and 30 shown in FIGS. 1 and 2 denote paper positioning protrusions. When the paper is aligned with the protrusion 29, the B5 size paper is positioned. It has a structure in which four spelling holes can be punched in a sheet of paper. In such a configuration, the operation of the small punch 1 of the present embodiment will be described. When the small punch 1 is stored, the locking piece 2 provided on the side wall 23 of the ruler 16 is stored.
5 is engaged with a first groove 26 formed in the wall portion 17 of the base 8 and a second groove 27 formed in the free end surface 3a of the operation side lever 3, as shown in FIGS. As shown in FIG. 5, the pair of levers 3 and 4 are held in a tilted state and the ruler 6 is closed (the ruler portion 16 is stored on the base 8). When using the small punch 1, first, the ruler 6 is slid in the direction C shown in FIG. 5A, and is formed on the base 7 of the ruler (ruler mechanism) 6. The rotation shaft 20 is shifted from the position shown in FIG. 6A to the position shown in FIG. As a result, as shown in FIGS. 4A and 7, the locking piece 25 is separated from the first groove 26 and the second groove 27, and the locking mechanism is unlocked. As shown in the figure, the pair of levers 3 and 4 stand up, the pair of punches 2 are positioned at the rising end, and the ruler 6 can be turned around the turning shaft 20 of the base 7. Next, the ruler 6 is moved around the rotation shaft 20 as shown in FIG.
1 (c), the ruler 16 is extended over the base 8 as shown in FIGS. 1 and 2, and the ruler 6 is opened. . At this time, ruler 6
6D, the rotating shaft 20 of the base 7 is brought into contact with the left side of the elongated hole 19 as shown in FIG. 6D, and the paper supporting portion 22 of the ruler 16 as shown in FIGS. By bringing the end portion 22b into contact with one side surface 24 of the base 8, movement in the punch arrangement direction is restricted. Then, in this state, a sheet (not shown) is inserted into the gap 9 of the base 8, and the end face of the sheet is connected to the reference surface 10 of the base 8 and the reference surface 21 of the
a, and one side of the corner of the sheet is contacted with the inner surface 23 b of the side wall 23 of the ruler portion 16, the protrusion 29, and the protrusion 30.
By aligning with one of the
The sheet is positioned with respect to the pair of punches 2. After the positioning of the sheet, the operating lever 3 is pressed to tilt the pair of levers 3 and 4, thereby causing the pair of punches 2 to move down and the sheet (not shown) as shown in FIG. ), And required spelling holes are perforated in the paper. After use, first, the pair of levers 3 and 4 are tilted, and then the ruler 6 is rotated clockwise in FIG. The moving shaft 20 is shifted from the position shown in FIG. 6B to the position shown in FIG.
The ruler 6 is closed as shown in FIG. Then, as shown in FIG. 4A, the ruler 6 is moved to a position B in FIG.
To the first groove 26 provided in the wall 17 of the base 8 and the free end side end face 3a of the operation side lever 3 by sliding the locking piece 25 provided in the side wall 23 of the ruler 16 in the direction shown in FIG. By engaging with the second groove 27 provided, as shown in FIGS. 5A and 5B, the pair of levers 3 and 4 are held in an inclined state and the ruler 6 is closed. Is maintained in the state of According to the first aspect of the present invention, a pair of levers are superimposed on a line connecting a pair of punches, and the pair of levers are erected by an elastic member. A small punch in which a pair of punches penetrate the paper and perforate a required hole in the paper by tilting the pair of levers in the upright state by pressing the operating side lever. A ruler mechanism is provided for positioning the pair of levers in the punch arrangement direction, and the ruler mechanism also has a lock mechanism for holding the pair of levers at the time of storage in a tilted state and holding the pair of levers in a closed state. Therefore, the mechanism for positioning the sheet and the mechanism for holding the lever and the ruler can be realized with a simple and compact structure as much as possible.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view of a small punch according to the present embodiment.
It is a perspective view in the state where the ruler was opened. FIG. 2 is an explanatory view of a small punch according to the present embodiment.
It is a figure showing the state where the ruler was opened. FIG. 3 is an explanatory view of a small punch according to the embodiment;
It is a figure showing the state where the ruler was closed. FIG. 4 is an explanatory view of a small punch according to the present embodiment;
Shows a part of a plan view of a state before the locking piece is separated from the first groove and the second groove and the pair of levers stand up,
(B) is a front view of (a). FIG. 5 is an explanatory view of a small punch according to the present embodiment, and FIG.
FIG. 3B is a plan view at the time of storage, and FIG. 3B is a front view of FIG. FIG. 6 is an explanatory view of a small punch according to the present embodiment;
FIG. 6 is a diagram showing a position of a ruler with respect to a long hole of a rotation shaft when a locking piece is engaged with a first groove and a second groove,
(B) is a diagram showing the position of the ruler with respect to the oblong hole of the rotation shaft when the locking piece is separated from the first groove and the second groove,
(C) is a view showing a state in which the ruler is rotated around a rotation axis, and (d) is a state in which the rotation axis of the ruler is in contact with one side of the long hole and the base-side end face of the ruler is moved. FIG. 9 is a diagram illustrating a state in which sliding movement of the ruler in the punch arrangement direction is restricted by abutting one side surface of the base. FIG. 7 is a view showing the small punch according to the embodiment, in which the ruler is slid and the locking piece is separated from the first groove and the second groove, and the lock mechanism is unlocked. It is a figure showing the state where a pair of levers were upright. [Description of Signs] 1 Small punch 2 Punch 3 Operating lever (lever) 4 Follower lever (lever) 5 Leaf spring (elastic member) 6 Ruler (ruler mechanism) 7 Base (base of ruler) 25 Locking piece (lock) Mechanism) 26 first groove (lock mechanism) 27 second groove (lock mechanism)

Claims (1)

(57) [Claims 1] A pair of levers are superimposed on a line connecting a pair of punches, and the pair of levers is held upright by an elastic member, and the operation side lever is pressed. A small punch in which the pair of punches penetrates the paper and punches a required hole in the paper by tilting the pair of levers in the upright state, and has a ruler mechanism for positioning the paper in the punch arrangement direction. A small punch characterized in that the ruler mechanism also has a lock mechanism for holding the pair of levers in a tilted state.