JP4657007B2 - Slider for paper cutter and paper cutter - Google Patents

Description

  The present invention relates to a paper cutter slider and a paper cutter.

  For example, a cutter blade cassette and a cassette mounting tool disclosed in Patent Document 1 are known as examples of facilitating handling of a cutter blade used in a paper cutter and ensuring safety. These configurations will be described below with reference to the accompanying drawings. FIG. 6 is a side view of a cassette mounting tool on which a conventional cutter blade cassette is mounted.

  As shown in FIG. 6, the cutter blade cassette and the cassette mounting tool are arranged along rails provided on a paper mounting table of a paper cutter (not shown) in a state where the cutter blade cassette 119 is mounted on the cassette mounting tool 120. It is configured to be attached to a slider that is movably attached.

  The cutter blade cassette 119 is in contact with the housing 122 having an open bottom, a disk-shaped cutter blade 106 that is rotatably provided with a part protruding from the opening of the housing 122, and the cutter blade 106. The cutter blade 106 and a protective plate 126 provided concentrically so as to be rotatable are provided. The protection plate 126 has a large-diameter arc portion 126a larger than the diameter of the cutter blade 106 and a small-diameter arc portion 126b smaller than the diameter of the cutter blade 106, and the large-diameter arc portion 126a protrudes from the cutter blade cassette 119 (FIG. 6). In this state, the cutter blade 106 is covered. However, the cutter blade 106 can be exposed by rotating the protective plate 126 and accommodating the large-diameter arc portion 126a in the cutter blade cassette 119.

  The cassette mounting tool 120 includes a box-shaped frame 128 having an open bottom surface, a substantially semicircular arc plate 130 that is rotatably provided with a part protruding from the opening of the frame 128, and a stopper 135. And. An insertion hole 128 a is formed on the side surface of the frame body 128. When the cassette mounting tool 120 is attached to the slider, a pin (not shown) provided on the slider is inserted into the insertion hole 128a. The arc plate 130 is configured to be interlocked with the protection plate 126 in a state where the cutter blade cassette 119 is mounted on the cassette mounting tool 120. The stopper 135 has a shaft portion 138 and a convex portion 135a formed at the tip portion. The stopper 135 is provided inside the frame body 128 so as to rotate about the shaft portion 138 on a substantially concentric line with the insertion hole 128a. Yes. The convex portion 135a is engaged with a groove 130b formed in the peripheral portion of the arc plate 130 so that the arc plate 130 is not rotated. As shown in FIG. 7, the shaft portion 138 is formed with a tapered surface 138a inclined in the circumferential direction. When the cassette mounting tool 120 is attached to the slider, pins provided on the slider 120 are formed on the tapered surface 138a. It comes to be pressed.

In the state where the cutter blade cassette 119 is mounted on the cassette mounting tool 120, the cutter blade cassette 119 and the cassette mounting tool 120 described above cannot rotate because the arc plate 130 is locked by the stopper 135 as shown in FIG. It is like that. By attaching the cassette mounting tool 120 to the slider, the pin provided on the slider is inserted into the insertion hole 128a. The pin is brought into pressure contact with a tapered surface 138a formed on the shaft portion 138 of the stopper 135, and the stopper 135 is rotated away from the groove 30b. As a result, the arc plate 130 can be rotated, and the interlocking protection plate 126 can be rotated to expose the cutter blade 106.
JP 2000-42979 A

  However, according to the conventional configuration, the configuration for exposing the cutter blade 106 is complicated as described above. Further, since it is difficult to visually determine whether or not the cutter blade 106 is exposed when attached to the slider, when the cutter blade cassette 119 and the cassette mounting tool 120 are removed, the operation is performed with the blade exposed. There was a risk of doing.

  Therefore, an object of the present invention is to provide a paper cutting machine slider and a paper cutting machine that can ensure safety during handling with a simple configuration.

  The object of the present invention includes a housing having an insertion hole that is inserted into a rail of a paper cutter, and a cutter blade that is rotatably attached to the inside of the housing via a support shaft. A slider for a paper cutter configured to protrude downward from the housing, further comprising a safety cover provided with a pair of arms that are flexible and stand up at intervals from each other. The cover includes a housing portion that houses a lower portion of the cutter blade in a state where the support shaft is held between a pair of the arm portions, and a step portion that extends to both sides of the housing portion and contacts the blade edge of the cutter blade. This is achieved by having a slider for a paper cutter.

  In this paper cutter slider, it is preferable that an engagement piece is provided at each of the tip portions of the pair of arm portions so as to face each other, and the engagement piece is provided from the tip side of the arm portion. It is preferable to have a receiving part inclined inward toward the base part.

  Moreover, it is preferable that the engagement groove | channel engaged with the lower end of the side wall of the said housing is provided in the both sides which pinched | interposed a pair of said arm part in the said safety cover.

  In addition, the object of the present invention includes a mounting table on which paper to be cut is mounted, and a rail supported so as to extend along a side edge of the mounting table, and the above-described slider for the paper cutting machine is provided. This is achieved by a paper cutter inserted into the rail.

  According to the present invention, it is possible to provide a paper cutter slider and a paper cutter that can ensure safety during handling with a simple configuration.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a cross-sectional view of a paper cutter slider having a safety cover according to the present embodiment. In the following description, the paper cutting direction by the paper cutting machine slider is referred to as the front-rear direction, and the direction orthogonal to the paper cutting direction is referred to as the left-right direction.

  As shown in FIG. 1, the slider 10 includes a housing 11, a support shaft 16, a cutter blade 12, a reinforcing plate 13, a rotating body 14, and a safety cover 20.

  The housing 11 has an open bottom, and through holes 11a and 11a (only one is shown in FIG. 1) are formed on the front and rear sides of the housing 11. A rail 6 provided in the paper cutter 1 described later is inserted into the insertion holes 11a and 11a, and thereby the slider 10 is supported movably along the rail 6. A support shaft 16 is fixed inside the housing 11 so as to extend in the left-right direction. A cutter blade 12, a reinforcing plate 13, and a rotating body 14 are rotatably inserted into the support shaft 16.

  The cutter blade 12 is formed in a disk shape, and a part of the cutter blade 12 protrudes below the housing 11. On both sides of the cutter blade 12, a disk-shaped reinforcing plate 13 and a rotating body 14 are respectively arranged, and these are integrated. A rubber ring 15 is attached to the outer peripheral surface of the rotating body 14. Further, the support shaft 16 is provided with a locking ring 18 at one end side, and a coil spring 17 is inserted between the locking ring 18 and the reinforcing plate 13. The coil spring 17 biases the cutter blade 12 in the left direction in FIG.

  As shown in FIGS. 1 to 3, the safety cover 20 is formed in a rectangular parallelepiped shape having an open bottom surface. A pair of flexible arms 20 a and 20 a are provided at the center of the upper surface of the safety cover 20. Engagement pieces 20f and 20f are provided at the distal ends of the arms 20a and 20a so as to face each other. The engaging pieces 20f and 20f are formed in a circular arc shape from the inner ends of the receiving portions 20g and 20g to the outer side, and receiving portions 20g and 20g inclined inward from the distal end side of the arms 20a and 20a toward the base portion. Locking portions 20h, 20h.

  Engaging grooves 20c and 20c are formed on both sides of the upper surface of the safety cover 20 with the pair of arms 20a and 20a interposed therebetween. On the side surface of the safety cover 20, a cutout portion 20b formed so as to correspond to the shape of the reinforcing plate 13, a storage portion 20d formed below the cutout portion 20b, and an arc shape from both sides of the storage portion 20d, respectively. It has step portions 20e and 20e formed so as to extend.

  When the safety cover 20 is attached to the slider 10, the receiving portions 20 g and 20 g are brought into contact with the support shaft 16, and the safety cover 20 is pushed up with the accommodating portion 20 d positioned directly below the cutter blade 12. Thereby, the space | interval of a pair of arms 20a and 20a is expanded smoothly, and the spindle 16 is hold | maintained between a pair of arms 20a and 20a under the engagement pieces 20f and 20f. At this time, since the pair of arms 20 a and 20 a serve as a guide for guiding the insertion direction of the safety cover 20, the reinforcing plate 13 is accommodated in the cutout portion 20 b of the safety cover 20, and the cutter blade 12 protrudes from the housing 11. Among the parts to be performed, the lower part is reliably accommodated in the accommodating part 20d, and the blade edge 12a of the other part is surely brought into contact with the stepped parts 20e and 20e. Further, the engagement grooves 20 c and 20 c of the safety cover 20 engage with lower portions of the front and rear side walls of the housing 11, respectively.

  On the other hand, when removing the safety cover 20 from the slider 10, the arms 20 a and 20 a are expanded by the contact between the engagement pieces 20 f and 20 f and the support shaft 16 by grasping and pulling down the side surface of the safety cover 20. The safety cover 20 can be removed.

  As described above, according to the slider 10 of the present embodiment, when the safety cover 20 is attached, the support shaft 16 is held between the pair of arms 20 a and 20 a, so that the cutter blade 12 is removed from the housing 11. Since the protruding blade edge 12a can be reliably guided to the accommodating portion 20d and the stepped portions 20e, 20e, safety during handling can be ensured with a simple configuration.

  Further, the engagement pieces 20f and 20f are provided at the distal ends of the arms 20a and 20a, and the receiving portions 20g and 20g described above are provided on the engagement pieces 20f and 20f, so that the safety cover 20 can be easily attached. it can.

  Furthermore, when the safety cover 20 is attached, the lower portion of the side wall of the housing 11 is engaged with the engaging grooves 20c, 20c, so that the backlash of the safety cover 20 in the front-rear direction can be prevented. The state can be reliably maintained.

  Next, a paper cutter according to an embodiment of the present invention having the slider configured as described above will be described. As shown in FIGS. 4 and 5, the paper cutter 1 includes a paper mounting table 2, a pair of mounting members 3, 4, a paper pressing plate 5 and a rail 6, and the slider 10 described above is attached to the rail 6. It has been.

  The paper placement table 2 has a placement surface 2a on which the paper to be cut is placed on its upper surface, and attachment members 3 and 4 are attached to both sides in the front-rear direction. The attachment members 3 and 4 hold the paper pressing plate 5 along the side edge on the placement surface 2a, and are provided with support portions 3a and 4a projecting outward from the side edge, respectively. The support portions 3a and 4a have through holes 3b and 4b through which the rod-shaped rails 6 are inserted, respectively. One support portion 3a is provided with a slide lever 3c. By operating the slide lever 3c, the rail 6 is clamped or released using a spring force, and the rail 6 can be attached and detached.

  When the slider 10 is mounted on the rail 6, the rail 6 is slid rearward by releasing the fixation of the rail 6 to the support portion 3a by operating the slide lever 3c. Next, the rail 6 is inserted into the holes 11 a and 11 a of the housing 11 with the rubber ring 15 of the slider 10 placed on the holding plate 5. Next, the side of the safety cover 20 attached to the slider 10 is grasped and pulled down, and the safety cover 20 is removed from the slider 10. And the rail 6 is attached to the support part 3a in the state which contact | abutted the side surface of the cutter blade 12 to the side edge of the paper mounting base 2. FIG. Accordingly, the slider 10 is movably attached along the rail 6 and can be cut.

  After cutting, the safety cover 20 is attached again so that the support shaft 16 is held between the pair of arms 20a, 20a. In the state where the slider 10 is attached to the rail 6, the cutter blade 12 is in contact with the side edge of the paper placing table 2, and the cutter blade 12 cannot be accommodated in the accommodating portion 20 d of the safety cover 20. The safety cover 20 is attached so that the blade 12 is sandwiched between the side surface of the safety cover 20 and the paper placing table 2. Since the movement of the safety cover 20 along the axial direction of the support shaft 16 is restricted by the locking ring 18, the gap between the side edge of the paper mounting table 2 and the side surface of the safety cover 20 can be held in a sufficiently small state. The tip of the hand is prevented from contacting the cutter blade 12 during the cutting operation.

  Thus, according to the paper cutting machine 1 of the present embodiment, the cutter blade 12 can be protected by the safety cover 20 even when the slider 10 is attached to the paper cutting machine 1, and the safety of work is ensured. can do.

It is sectional drawing of the slider for paper cutters concerning one Embodiment of this invention. It is a side view of the safety cover of the slider for paper cutters shown in FIG. It is AA sectional drawing in FIG. It is a perspective view of the paper cutter based on one Embodiment of this invention. It is principal part sectional drawing of the paper cutter shown in FIG. It is a side view of the cassette mounting tool which mounted the conventional cutter blade cassette. It is a principal part perspective view of the cassette mounting tool of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Paper cutting machine 2 Paper mounting base 3, 4 Mounting member 5 Paper holding plate 6 Rail 10 Slider 11 Housing 11a Insertion hole 12 Cutter blade 12a Cutting edge 13 Reinforcement plate 14 Rotating body 15 Rubber ring 16 Spindle 17 Coil spring 18 Locking ring 20 Safety cover 20a Arm 20b Notch 20c Engagement groove 20d Storage part 20e Step part 20f Engagement piece 20g Receiving part 20h Locking part

Claims (4)

A housing having an insertion hole that is inserted into a rail of the paper cutter, and a cutter blade that is rotatably attached to the inside of the housing via a support shaft, and a part of the cutter blade is provided below the housing In the paper cutter slider configured to protrude,
A safety cover provided with a pair of arm portions that are flexible and stand up with a distance from each other;
The safety cover includes a housing portion that houses a lower portion of the cutter blade in a state where the support shaft is held between a pair of the arm portions, and a step portion that extends to both sides of the housing portion and contacts the blade edge of the cutter blade. A slider for a paper cutter. Engagement pieces are respectively provided at the tip portions of the pair of arm portions so as to face each other,
2. The paper cutter slider according to claim 1, wherein the engagement piece includes a receiving portion that is inclined inward from a distal end side of the arm portion toward a base portion. The slider for a paper cutter according to claim 1 or 2, wherein an engagement groove that engages with a lower end of a side wall of the housing is provided on both sides of the safety cover with the pair of arm portions interposed therebetween. A mounting table on which paper to be cut is placed;
A rail supported so as to extend along the side edge of the mounting table,
A paper cutter in which the slider for a paper cutter according to any one of claims 1 to 3 is inserted through the rail.

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