JPS601995Y2 - sheet slitter - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a portable sheet slitter that can cut a long sheet-like object into a desired width in the longitudinal direction.

Traditionally, long sheet-like materials such as paper, plastic sheets, leather, rubber sheets, laminates thereof, or adhesive sheets made by coating these sheets or laminates with adhesive and pasting release paper have been used as Since the width of use varies depending on the purpose, there have been many cases in which a wide sheet-like material must be cut into a sheet-like material of a desired width.

The general method for such cutting is to draw a line on a wide sheet with a ruler and then cut along the line with scissors or with a cutter knife placed against the ruler.As a result, work efficiency is improved. This was very bad, and there were many cases where the width of the product was not the same as the desired width, so it could not be used for the intended purpose, or even if it could be used for the intended purpose, the finish was very poor. .

The present invention eliminates these deficiencies in conventional sheet cutting methods and provides a portable sheet slitter that can quickly and accurately cut sheets of a desired width on-site when needed. be.

More specifically, the present invention includes a slitter in which an upper plate and a lower plate are fixed in parallel with a certain gap, and a slitter that is slidable in the gap between the upper plate and the lower plate of the slitter. A gripping tool comprising an attached slider, a slider fixing device for fixing the slider to the one slitter according to the width of the sheet-like object, and a top plate gripping part for holding the top plate of the one slitter. , a gripping tool fixture for fixing the gripping tool to the upper plate of one of the slitter units, a blade holder rotatably mounted via a support α provided on the gripping tool; a blade holder fixing device for fixing the blade holder to the gripper at a predetermined angle rotated about the fulcrum; and a lower plate of the one slitter that is fixed to the blade holder so that the blade tip is fixed to the blade holder when cutting a sheet-like object. The present invention relates to a sheet slitter characterized by comprising a blade inserted into a long groove bored in the sheet slitter.

Hereinafter, one embodiment of the sheet slitter according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front view of one embodiment of the sheet slitter according to the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1, FIG. 3 is a right side view of FIG. 1, and FIG. 1, and FIG. 5 is an exploded perspective view showing the structure of the sheet slitter according to the present invention.

In the drawing, 1 is a slitter that is fixed at both ends and has an upper plate 2 and a lower plate 3 fixed in parallel with a certain gap between them. The gap formed between the plate 3 and the plate 3 must be equal to or larger than the thickness of the sheet to be cut.

Further, although the upper plate 2 is provided with a long hole 4 over almost its entire length in the longitudinal direction except for the fixing portions at both ends, the long hole 4 may not be provided.

5 is a slider that is slidably installed in the gap between the upper plate 2 and lower plate 3 of slitter 1, and 6 is a sheet before cutting that the distance between the side surface of slider 5 and the inner surface of slitter 1 is This is a slider fixture that fixes the slider 5 to one slitter 1 while sliding the slider 5 so as to match the width, and in the illustrated embodiment, this slider fixture 6
A bolt is inserted through a long hole 4 from the upper surface of the upper plate 2 of each slitter 1 and screwed into a female thread provided on the slider 5.

Reference numeral 7 denotes a gripping tool consisting of an upper plate gripping part 8 for holding the upper plate 2 of one slitter 1 vertically or front and back, and a vertical part 9 standing upright above the side of this upper plate gripping part 8. , this gripping tool 7 is formed by bending a metal plate.

The vertical portion 9 of the gripping tool 7 is provided to rotatably support the blade holder 12 via a fulcrum 11, which will be described later, and to fix the blade holder 12 to the gripping tool 7 with a blade holder fixing tool 13. A hinge is used for the support 11, a bolt is used for the blade holder fixture 13 that passes through the blade holder 12 and is screwed into the upper plate gripping part 8, and the upper plate gripping part 8 and the blade holder are connected together. This is not necessary if the structure is such that a spring is installed between the tool 12 and the like.

Reference numeral 10 denotes a gripper fixture for fixing the gripper 7 that clamps the upper plate 2 of one slitter 1 to the upper plate 2; The gripping tool 7 is attached to one slitter 1 by passing through the drilled hole and the elongated hole 4 drilled through the upper plate 2 and screwing it into the female screw provided at the lower part of the upper plate gripping part 8. It consists of a bolt that fixes it in the desired position.

Reference numeral 12 denotes a blade holder which is rotatably attached to the gripper 7 via a shaft 11, and 13 a blade holder which fixes the blade holder 12 to the gripper 7 at a predetermined angle rotated around the fulcrum 11. In the illustrated embodiment, this blade holder fixture 13 has a vertical portion 9 in an arc shape with a constant radius centered on the fulcrum 11.
The bolt passes through an arcuate hole drilled in the blade holder 12 and is screwed into a female thread provided on the side surface of the blade holder 12.

A blade 14 is fixed to the side surface of the blade holder 12 with a fixing means such as a screw, and the blade surface cuts the sheet-like material, and a blade 15 has the cutting edge of the blade 14 under the slitter 1 when cutting the sheet-like material. The slitter 1 is positioned below the top surface of the plate 3 so that the sheet-like material is completely cut, and has a sharp cutting edge.
A hole is provided in the upper surface of the lower plate 3 of each slitter 1 so that the upper surface of the lower plate 3 is located above the upper surface of the lower plate 3, and the cutting edge of the blade 14 is inserted into the hole when cutting a sheet-like object. This is a long groove to be inserted, and it is sufficient that the long groove 15 has a length half the length of one slitter 1 in the longitudinal direction.

The operation of cutting a sheet-like material using the slitter according to the present invention having the above-mentioned configuration will now be described.

First, the slider 5 is fixed to each slitter 1 by the slider fixture 6, the gripper fixture 10, and the blade holder fixture 13, the gripper 7 is secured to each slitter 1, and the blade holder 12 is gripped. The fixation to the holder 7 is released, the slider 5 and the grip 7 are movable along the longitudinal direction of the upper plate 2 of each slitter 1, and the blade holder 12 is moved relative to the fulcrum 11 of the grip 7. to make it freely rotatable.

In this state, the blade holder 12 is first rotated upward about the fulcrum 11, and in this state, the blade holder 12 is fixed to the gripper 7 by the blade holder fixture 13.
To prevent a blade 14 from coming into contact with a sheet-like object even if the sheet-like object is inserted into the gap between an upper plate 2 and a lower plate 3.

Next, after moving the slider 5 to the position farthest from the long groove 15 of the lower plate 3, the sheet-like material to be cut is inserted into the gap between the upper plate 2 and the lower plate 3 of each slitter 1, and the sheet-like material is With one side of the object in contact with the inner surface of the side where the long groove 15 of the slitter 1 is bored, move the slider 5 and bring the side of the slider 5 into contact with the other side of the sheet-like object. , the slider 5 is fixed to one slitter 1 by a slider fixture 6.

This operation prevents the sheet-like material from meandering even when the sheet-like material is moved in a direction perpendicular to the longitudinal direction of each slitter 1.

Next, the gripping tool 7 is moved along the upper plate 2 of each slitter 1, and when the blade 14 fixed to the blade holder 12 comes to the desired width position for cutting the sheet-like material, A gripping tool 7 is fixed to one slitter 1 by a gripping tool fixing device 10.

After that, the fixation of the blade holder 12 to the gripping tool 7 is released from the blade holder fixing tool 13, and the blade holder 12 is moved to the fulcrum 1.
The cutting edge of the blade 14 passes through the gap between the upper plate 2 and lower plate 3 of one slitter 1 and pierces the sheet-like object with the tip protruding from the long groove 15 of the lower plate 3. In addition, with the blade tip inserted into the long groove 15 of the lower plate 3, the blade holder 12 is held by the blade holder fixture 13 and the holder 7
Fixed to.

This completes the preparation for cutting the sheet-like material, so by holding the slitter 1 with one hand and pulling the sheet-like material forward with the other hand, the sheet-like material can be easily and accurately cut to the desired width. be.

In the above operation, a slight uncut portion remains on the front side of the sheet, so if you want to cut that portion as well, turn the sheet upside down and turn it over again using the sheet slitter of the present invention. Upper plate 2 and lower plate 3
If the tip of the sheet-like material is cut by the sheet slitter according to the present invention, the leading edge of the sheet-like material may be Grip the blade holder 12 with the holder 7 without reaching the long groove 15 bored in the lower plate 3 of each slitter 1.
If the sheet-like object is fixed with the blade holder fixture 13 and then pulled out toward the user, the sheet-like object can be cut over its entire length.

Note that it is preferable to provide a dimension scale on the upper surface of the upper plate 2 of each slitter 1 so that the cutting width of the sheet-like material can be set accurately.

The sheet slitter according to the present invention described in detail above has a simple structure, so it can be manufactured at low cost, and it can easily and accurately cut sheet-like materials to a desired width without requiring any skill. The structure is such that the cutting edge of the slitter is inserted into a long groove drilled into the bottom plate of a single slitter, and it can be fixed with the cutting edge inserted into the long groove, so there is no danger in carrying it around, so it can be easily transported and used on site. The sheet-like material can be cut to a desired width, and its practical value is very great.

[Brief explanation of drawings]

FIG. 1 is a front view of one embodiment of the sheet slitter according to the present invention, FIG. 2 is a sectional view taken along line A-A in FIG. 1, FIG. 3 is a right side view of FIG. 1, and FIG. 1, and FIG. 5 is an exploded perspective view showing the structure of the sheet slitter according to the present invention. 1 One Nisuri Ivy, 2: Upper plate, 3: Lower plate, 4: Long hole, 5
Nislider, 6: Slider fixture, 7: Gripping tool, 8
: Upper plate gripping part, 9: Vertical part, 10: Gripping tool fixture, 11
:Fully point, 12: Blade holder, 13: Blade holder fixture, 14
: Blade, 15: Long groove.

Claims (1)

[Claims for Utility Model Registration] ■ One slitter 1 in which an upper plate 2 and a lower plate 3 are fixed in parallel with a certain gap, and an upper plate 2 of one slitter 1
A slider 5 is slidably attached to the gap between the lower plate 3 and the slider 5, a slider fixing device 6 for fixing the slider 5 to the slitter 1 according to the width of the sheet-like object, and a A gripping tool 7 equipped with an upper plate gripping part 8 for clamping the plate 2, a gripping tool fixing device 10 for fixing the gripping tool 7 to the upper plate 2 of one slitter 1, and a gripping tool 7 provided on the gripping tool 7. a blade holder 12 rotatably mounted via a fulcrum 11; a blade holder fixture 13 that fixes the blade holder 12 to the grip 7 at a predetermined angle rotated about the fulcrum 11; This sheet slitter is fixed to a holder 12 and has a blade 14 whose cutting edge is inserted into a long groove 15 formed in a lower plate 3 of a slitter 1 when cutting a sheet-like object. 2. The slider fixture 6 is a bolt that passes through the long hole 4 drilled in the longitudinal direction of the upper plate 2 of each slitter 1 from the upper surface of the upper plate 2 and is screwed into a female thread provided on the slider 5. A sheet slitter according to claim 1 of the utility model registration claim. 3 Utility model registration claim paragraph 1 or 2, in which the upper plate 2 of one slitter 1 is an upper plate with a dimensional scale provided on the upper surface
Sheet slitter described in section. 4 The gripper fixing tool 10 passes through the hole drilled in the upper part of the upper plate gripping part 8 of the gripper and the elongated hole 4 bored in the longitudinal direction of the upper plate 2, and grips the upper plate. The sheet slitter according to any one of claims 1 to 3, which is a bolt that is screwed into a female thread provided at the lower part of the portion 8. 5 The blade holder fixture 13 passes through an arc-shaped hole drilled in the vertical portion 9 in an arc shape of a constant radius around the fulcrum 11 and is screwed into a female thread provided on the side surface of the blade holder 12. The sheet slitter according to any one of claims 1 to 4 of the utility model registration claims, which is a bolt.