JP2003165090A - Paper cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper cutter stored compactly, and to provide the paper cutter in which a rotary blade is prevented from being projected and retreated under the condition where a slider is turned laterally. <P>SOLUTION: In this paper cutter wherein support tools 4 are attached turnably in longitudinal both end positions of a base 1, wherein the slider 6 is attached slidably to a rail 5 provided between the support tools, wherein the rotary blade and an elastic member are self-contained in the slider, and wherein the rotary blade is protruded outwards against elastic force of the elastic member when the slider is pressed, the slider is turned down laterally around the rail as an axis. A locking part 17 is also provided to make it impossible to press the slider, when the slider is turned laterally. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper cutter that cuts paper by sliding a slider having a rotary blade downward along a rail.

[0002]

2. Description of the Related Art By sliding a slider having a rotary blade downward while sliding it along a rail, the rotary blade rotates while pressing a paper placed on a base, thereby cutting the paper. Paper cutters that can be used are known, for example US Pat. No. 5,322,001,
It is disclosed in JP-A-10-34592. In this type of paper cutter, a rail is held by supporting tools rotatably attached to the front and rear ends of a base, and a slider having a rotary blade is slidably and vertically movable on the rail. The slider is always elastically supported upward by an elastic member, and the blade edge of the rotary blade is always located above the lower end of the rail.

[0003]

However, since the slider of this type of paper cutter is always in the upright state, it has a drawback that the slider portion becomes a hindrance when it is stored in the product box or when it is not used and is bulky. . Therefore, it is an object of the present invention to provide a paper cutter which can be compactly stored by overturning a slider and which solves the above-mentioned drawbacks. Further, since the slider is mounted on the rail so as to be movable up and down, it is dangerous to expose the rotary blade if the slider is inadvertently pressed in a horizontal state. Therefore, it is also an object to provide a paper cutter in which the rotary blade does not appear or disappear when the slider is turned over.

[0004]

Means for Solving the Problems A support tool is rotatably attached to both front and rear positions of a base, a slider is slidably mounted on a rail provided between the support tools, and a rotary blade and a bullet are attached to the slider. In a paper cutter in which a rotating member projects to the outside against the elastic force of the elastic member when the elastic member is included and the slider is pressed, the slider can be laterally rolled around the rail. It is a paper cutter. Further, the paper cutter is characterized in that a locking portion is provided to prevent the slider from being pressed when the slider rolls over.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION When cutting a predetermined portion of a sheet of paper, first, the support is rotated upward to position the rail upward. Then, the paper restraining body separates from the base, so that the paper can be placed on the base. Next, the support is rotated downward to position the rail downward. Then, the paper placed on the base can be fixed by the paper restraining body.
Next, the slider 6 lying over at the front end of the rail is set upright. Next, the slider is pressed. Then, the rotary blade projects. Next, while the slider is being pressed, it is slid to the rear end portion of the rail. Then, the rotary blade rotates to cut the paper on the base.

When the cutting of the paper is completed, the slider is returned to the front end portion of the rail and the slider is turned over. Even if the slider is pushed in a horizontal state, the slider cannot move up and down because the locking portion is provided. Furthermore, the slide member is installed so that it cannot move up and down, and the rotary blade cover attached to it does not move up and down. It does not stick out. Therefore, when the rail is positioned above or below for placing the paper on the base or when the paper cutter is not used, there is no risk of the hand or finger being injured by the blade tip of the rotary blade. As described above, the paper cutter of the present invention can be compactly stored by turning the slider over.

[0007]

The present invention will be described in detail below with reference to the drawings.
1 to 7 show an embodiment of the present invention. Reference numeral 1 denotes a base on which a sheet to be cut is placed, and a pair of support pieces 2 are provided upright at both front and rear positions, and a cutter mat 3 is provided at a position facing a rotary blade 10 of a slider 6 described later. The cutter mat 3 is adhesively fixed with a double-sided tape, and when the cutter mat 3 is old, it can be replaced with a new one by removing the double-sided tape.

Reference numeral 4 denotes a pair of supporting members pivotally attached to the supporting piece 2 so as to be rotatable.
A rail 5 having a front end portion formed in a round bar shape and a rear end portion formed in a square bar shape is held between the rails. The rail 5 is held by fitting and fixing the front end portion and the rear end portion to each side surface of the support tool 4. In addition, the groove 1 is formed on the upper surface of the rail 5.
5 is formed. The method of holding the rail 5 on the support tool 4 may be not only by fitting and fixing but also by fixing with screws and holding. In addition, the support 4
A paper restraining member 14 for fixing the paper is also fitted and fixed between them. Further, the paper restraining body 14 is formed with a slider storage portion 16.

A slider 6 is slidably mounted on the rail 5. The slider 6 includes a slider body 7 and
The rotary blade 10, the rotary blade cover 12, and the cap 13 are provided. The slider body 7 has therein a slide member 8 movable on a rail and an elastic member 9 for controlling the vertical movement function of the slider, and a locking portion 17 is provided on the side surface. A knob 11 that also functions as a rotary shaft is installed at the center of the rotary blade 10, and the knob 11 is attached to the slider body 7. The rotary blade cover 12 is hooked on the slide member 8 protruding from the slider body 7. Although the elastic member 9 in this embodiment uses a coil spring made of metal, the elastic member 9 may be a leaf spring made of resin, or the elastic member 9 and the slide member 8 are integrated. It may be a molded leaf spring. Reference numeral 13 denotes a cap, which is a twist type that can be attached and detached by rotating it to the left and right, and is detachable from the slider body 7. However, with respect to the structure for attaching and detaching the cap 13, in addition to the twist type, press fitting, concave and convex fitting,
Various known forms such as a screw type may be used.

The slider 6 is slidably mounted on the rail 5. First, the slider body 7 composed of two parts is fitted so as to sandwich the rail 5 from the left and right, and is mounted on the rail 5. At this time, the slide member 8 equipped with the elastic member 9 is placed inside the slider body 7 so as to be placed on the rail 5. Next, the knob 11 is attached to the center of the rotary blade 10 and sandwiched by the rotary blade covers 12 from the left and right, and then the rotary blade cover 12 is hooked on the slide member 8 protruding from the slider body 7, and the knob 11 Is attached to the slider body 7. Next, the cap 13 is rotated right and left to be locked to the slider body 7. The slider 6 thus assembled is always elastically supported upward by the elastic member 9. When the slider 6 is pressed downward, the knob 1 directly attached to the slider body 7
Members such as 1, the rotary blade 10 and the cap 13 can be lowered, and when the pressure is released, the slider 6 rises and returns to its original position. On the other hand, since the slide member 8 is installed so that it cannot move up and down, the rotary blade cover 12 directly attached to the slide member 8 cannot move down. In this way, when the slider 6 is elastically supported upward by the elastic member 9, the blade edge of the rotary blade 10 is the rotary blade cover 1
It is located above 2, and when the slider 6 is pressed downward, the blade tip of the rotary blade 10 projects outward from the rotary blade cover 12.

The rail 5 has a front end portion formed into a round bar shape and a rear end portion formed into a square bar shape, and the groove 1 is formed on the upper surface of the rail 5.
5 is formed. A locking portion 17 is formed on the side surface of the slider body 7. Therefore, when the slider 6 is located at the round bar-shaped front end portion, the slider 6 is rotatable and can roll over. Even if the slider 6 is pushed in the sideways state, the locking portion 17 abuts on the side surface of the rail 5 and thus cannot be moved up and down. On the other hand, when the slider 6 is located at the rear end portion of the rectangular rod shape, the slider 6 cannot rotate. Slider 6
When is pressed in an upright state, the locking portion 17 is housed in the groove 15 of the rail 5 and can be moved up and down. In addition,
The rail 5 can be replaced with a round bar shape from the front end portion to the rear end portion. However, it is necessary to provide a rotation prevention structure so that the slider 6 does not rotate when the slider 6 is located at a position other than the front end portion.

Next, a method of using the paper cutter of this embodiment will be described. First, the support tool 4 is rotated upward to position the rail 5 upward. Then, the paper restraining body 14 separates from the base 1, and the paper can be placed on the base 1 in this state. Next, the support tool 4 is rotated downward to position the rail 5 downward. Then, the paper placed on the base 1 is fixed by the paper restraining body. Next, the slider 6 which is rolled over at the front end portion of the round bar is set upright. Then, the slider 6 is pressed. At this time, the rotary blade cover 1
Since 2 is attached to the slide member 8, it does not move up and down, while the rotary blade 10 is attached to the stider body 7 through the knob 11 and moves up and down together with the slider 6, so that the rotary blade cover 12 rotates 10 projects. Next, with the slider 6 still pressed, the slider 6 is slid to the rear end portion. Then, the rotary blade 10 rotates to cut the sheet on the base 1. At the time of this cutting, since the cutter mat 3 is provided on the base 1,
The cut surface of the paper becomes sharp and the rotary blade 1
It does not damage the zero edge.

When the cutting of the paper is completed, the pressure is released, the slider 6 is returned to the front end portion, and it is turned over. When the slider 6 is pushed in the state of being overturned, the locking portion 17 hits the side surface of the rail 5 and thus cannot be moved up and down. At this time, since the slide member 8 is pressed toward the rail 5 by the elastic member 9, it does not move up and down, and the rotary blade cover 12 mounted on the slide member 8 also does not move up and down. The rotary blade 10 does not project to the outside. Therefore, when the rail 5 is positioned above or below or when the paper is placed on the base 1, there is no risk of the hand or fingers being injured by the cutting edge of the rotary blade 10.

When replacing the rotary blade 10, the cap 1
After removing 3, the knob 11 is grasped and pulled out together with the rotary blade cover 12 from the slider body 7. Next, as shown in FIG. 7, both ends of the knob 11 are sandwiched by fingers and pulled up to separate from the rotary blade cover 12. By doing so, it is possible to prevent careless contact with the rotary blade 10, and there is no risk of injury. When mounting the rotary blade 10, it suffices to follow the previous steps in reverse. After the knob 11 of the rotary blade 10 is sandwiched by fingers and mounted on the rotary blade cover 12, the knob 11 is gripped and mounted on the slider body 7. , Cap 13 is attached. The rotary blade cover 12 may be integrated as shown in FIG.

9 to 10 show another embodiment of the present invention. A rail 5'having a rectangular rod shape is held between the support tools 4 '. The rail 5'is fixed to the side surface of the support so as to be rotatable by 90 degrees. Further, no groove is formed on the upper surface of the rail. Further, a locking portion 17 'is provided in the slider storage portion provided in the paper restraining body, and a hole into which the locking portion 17' can be inserted is provided on the back surface of the slider body. The other parts have the same structure as the above-mentioned embodiment.

Next, a method of using the embodiment will be described.
First, the support 4'is rotated upward to position the rail 5'upward. Then, the paper restraining member separates from the base, and the paper can be placed on the base in this state. Next, the support 4'is rotated downward to position the rail 5'downward. Then, the paper placed on the base is fixed by the paper restraining body. Next, the slider which is rolling over at the front end portion of the rail 5'is erected upright. Both ends of rail 5'are 90
Since it is attached to the support so that it can rotate, the rail 5 '
Along with that, the slider stands upright. Next, the slider is pressed to cause the rotary blade to project, and the rail is slid to the rear end portion to cut the paper on the base. When the cutting of the paper is completed, the pressure is released, the slider is returned to the front end portion, and the paper is rolled over. Since both ends of the rail 5'are attached to the support rotatably by 90 degrees, the rail 5'rotates by 90 degrees and the slider also rotates by 90 degrees and rolls over. When the slider is rolled over, the locking part 17 'provided inside the slider storage part
Is inserted into the hole provided on the back of the slider body, making it impossible to move the slider up and down. At this time, since the slide member is pressed toward the rail by the elastic member, it does not move up and down, and the rotary blade cover attached to the slide member also does not move up and down. Does not stick out. Therefore, when the rail 5'is positioned above or below or when the paper is placed on the base, there is no risk of the hand or finger being injured by the blade tip of the rotary blade.

[0017]

As described above, in the paper cutter according to the present invention, since the slider can be turned sideways with the rail as the axis, the paper cutter can be stored compactly. Also,
Since the locking part is provided to prevent the slider from being pushed when the slider rolls over, there is a risk that the blade edge of the rotating blade will injure your hand or fingers when placing paper on the base, replacing the rotating blade, or storing it. There is no such thing.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

[Figure 2] Exploded view of slider

FIG. 3 is a cross-sectional view of a state in which the slider is overturned.

FIG. 4 is a sectional view of the slider in an upright state.

FIG. 5 is a cross-sectional view showing a state where the slider is pressed at the front end portion.

FIG. 6 is a cross-sectional view showing a state where the slider is pressed at the rear end portion.

FIG. 7 is a state diagram in which the rotary blade is removed from the rotary blade cover.

FIG. 8 is another embodiment of the rotary blade cover.

FIG. 9 is another embodiment of the present invention.

FIG. 10 is a cross-sectional view of a slider according to another embodiment of the present invention when the slider is overturned

[Explanation of symbols]

1 base 2 support pieces 3 cutter mat 4 Supports 5 rails 6 slider 7 Slider body 8 Slide member 9 elastic member 10 rotary blades 11 picks 12 rotary blade cover 13 cap 14 Paper restraining body 15 grooves 16 Slider storage 17 Locking part 18 sheets 19 Anti-rotation piece

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Genichi Ito             4-69, Tenzuka-cho, Nishi-ku, Nagoya City, Aichi Prefecture             Within Shachihata Co., Ltd. F term (reference) 3C027 RR03

Claims (2)

[Claims] 1. A support tool is rotatably attached to both front and rear positions of a base, a slider is slidably mounted on a rail provided between the support tools, and a rotary blade and an elastic member are internally provided in the slider. Then, in the paper cutter in which the rotary blade projects to the outside against the elastic force of the elastic member when the slider is pressed, the slider can be turned sideways with the rail as an axis. . 2. The paper cutter according to claim 1, further comprising a locking portion that prevents the slider from being pressed when the slider is rolled over.