JPH0970791A - Sheet cutting appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the resistance with a sheet without cutting the sheet in a deviated manner from a reentrant angle line due to undulation or ruggedness of the sheet. SOLUTION: In a sheet cutting tool, a wheel-shaped corner-pushing roller (a), rolling rollers (b), and a cutter 2 are fitted to a supporting plate 1, the corner-pushing roller (a) is diagonal to the plane to be formed by connecting the corner-pushing roller to the lower part of two or more rolling rollers (b), the lower part of the corner-pushing roller (a) is positioned on the perpendicular plane relative to the plane from the end part of the supporting plate 1 or on the outer side of the perpendicular plane, and a cutter is fitted so that the tip 2' of the cutter passes on the line on which the corner-pushing roller is advanced or in the vicinity thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument for cutting a sheet along a corner line.

[0002]

2. Description of the Related Art As one of the methods for waterproofing a rooftop of a building, a sheet waterproofing method for covering and covering the entire rooftop with a waterproof sheet made of synthetic resin or synthetic rubber is performed. The waterproof sheet covers the entire top surface of the roof, but the roof is not necessarily formed only in a flat area, and a three-dimensional object such as a rising wall such as a parapet is often provided. Therefore, to completely waterproof the roof,
It is also necessary to cover such rising portions with a waterproof sheet.

Generally, in the sheet waterproofing method, such a rising wall and a roof bottom wall are covered with different waterproof sheets, and the end of either one of the waterproof sheets is cut along the entering corner line, and the other waterproof sheet is cut. 30-1 with the terminal part of the waterproof sheet which cut | disconnected the terminal part of the sheet | seat according to the said corner line.
A method is used in which they are overlapped with each other by welding for about 00 mm.

When a long sheet-shaped floor material made of synthetic resin is laid in a corridor or a room of a building, the long sheet-shaped floor material is cut along the entering corner line between the wall surface and the floor surface. There is a need to.

[0005]

When cutting a sheet along such a corner line, the sheet is normally bent and pushed into the corner line, and a batten or the like is applied almost along the corner line to waterproof the sheet. Although the sheet is cut linearly, it is difficult to fold the sheet according to the angle of the entering corner because the sheet is as thick as 1 to 3 mm, so that it may become slightly longer or shorter. Further, the entering corner line is often not a straight line, and even if a batten is applied, the sheet cannot be cut in accordance with the shape of the entering corner line.

There is also known a device for cutting a long sheet along a corner line. This is a structure in which a cutter is integrally attached to a three-dimensional object having a substantially rectangular back surface, and the tip of a cutter blade is located on one side of the rectangular back surface. The sheet can be cut along the entering corner line by pressing one side of the instrument on the side where the cutter is attached along the entering corner line. However, this device can be cut neatly along the corner line in a place where there is no unevenness or unevenness in the room, but it can be cut off on a rooftop or other place where there is a lot of unevenness or it can be overlapped to connect tarpaulins. When cutting the uneven part, because the back surface of the device is brought into contact with the sheet surface and the device is moved, it cuts off from the corner line at the unevenness of the base or the uneven part of the sheet, and further, Since the frictional resistance with the sheet is large, it is a laborious task to cut a long distance such as a waterproof sheet laid on the roof.

The present invention solves such a problem, and provides an instrument capable of easily cutting a sheet in accordance with the shape of a corner line even in a place having unevenness or steps. .

[0008]

Means for Solving the Problems In the means for solving the above problems according to the present invention, at least one wheel-shaped angular pressing roller, two or more rolling rollers and a cutter are attached to a support plate. Or a structure in which at least one wheel-shaped angular pressing roller, three or more rolling rollers and a cutter are attached to a support plate having at least one straight line, and at least one of the angular pressing rollers is a corner. On a vertical plane that is oblique to a plane formed by connecting the pressing roller and the lower portion of the rolling roller and the lower portion of the angular pressing roller is on the vertical plane or from the end of the support plate to the plane. Is it attached to the support plate so that it is located on the outside?
Or, the square pressing roller is supported obliquely so that the lower part of the roller projects on a vertical plane lowered from the plane formed by connecting three rolling rollers from the straight side of the support plate or outside the vertical plane. The cutter is attached near the straight side of the plate, and the cutter is attached to the support plate so that the tip of the cutter passes on or near the line formed by the advance of the square pressing roller. You can easily and neatly cut the sheet along the corner line even in places.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION In the sheet cutting device of the present invention, three or more rollers a and b are attached to a support plate 1,
At least one wheel-shaped pressing roller a is obliquely attached to a plane formed by connecting the lower portions of the rollers a and b. This wheel-shaped squeezing roller a has a vertical surface lowered from the end of the supporting plate 1 near where the roller a is attached so as to be orthogonal to the plane, or the lower part of the roller a is located outside the vertical surface. It is attached to the support plate 1 so as to project. Further, the cutter 2 supports the support plate 1 so that the tip 2'of the cutter 2 passes on or near a line formed by the movement of the wheel-shaped square pressing roller a.
Mounted on

The support plate 1 is provided with at least one wheel-shaped angular pressing roller a and two or more rolling rollers b, and these rollers a and b support the support plate 1. It is preferable that the rollers are provided at three or four places in terms of stability of the support plate, but five or more rollers can be provided if there is no rattling in supporting the support plate 1.

At least one wheel-shaped angular pressing roller a is provided at the edge of the support plate 1, and the sheet Y is pressed along the corner line X by the angular pressing roller a. The square pressing roller a is a disc-shaped wheel made of plastic, rubber, metal, or the like, and is attached near the edge of the support plate 1. This square pressing roller a is located on a vertical plane that is lowered from a side edge of the supporting plate near where the rollers are attached to a plane formed by connecting the lower parts of three or more rollers, or from this vertical plane. Also, the roller lower part a'is attached to the outside. Similarly, when the square pressing roller a is provided at two or more places, the lower portion a ′ of the roller is provided so as to project on the vertical surface or outside thereof. When three or more rollers are mounted, it is preferable that the lower parts of these rollers are mounted on the same straight line.

The rolling roller b which supports the support plate 1 is also made of plastic, rubber, metal or the like, and may be a wheel-shaped tire or a ball-shaped roller. In the case of a wheel-shaped roller, the directions are fixed parallel to each other in a certain direction. Or install it again,
It is also possible to install it rotatably. This roller b
The position at which the support plate 1 is provided is not particularly limited, but it is preferable to install it near the edge of the support plate 1. However, when the support plate 1 is pressed and the sheet Y is cut, the support plate 1 does not wobble. The roller b may be attached to. The sizes of the square pressing roller a and the rolling roller b are preferably 10 to 50 mm in diameter and 3 to 100 mm in width, but are not limited thereto.

Further, if there are steps such as unevenness in the corners for cutting the sheet Y, the cutting line may be misaligned or the tip 2'of the cutter may be broken.
It is particularly preferable to interpose the spring 3 and the cushioning material 4 between the support plate 1 and the support plate 1. As the spring 3, a coil spring, a leaf spring, or a torsion bar spring can be used, and it is also possible to attach it together with a shock absorber like a suspension of an automobile. Further, the cushioning material 4 may be interposed without using the spring 3. As the cushioning material 4, an elastic plastic foam, an elastic synthetic resin such as a highly polymerized vinyl chloride resin having a degree of polymerization of 2000 or more, and other synthetic rubber, natural rubber or the like can be preferably used. Cushioning material 4
Of course, it is also possible to use the and spring 3 together. These springs 3 and cushioning materials 4 can absorb the unevenness on the entry corner line X if attached only to the corner pressing roller a, but because they absorb the unevenness of the floor surface or wall surface other than the entry corner line X. In addition, the spring 3 and the cushioning material 4 can be attached to other rollers.

Further, instead of attaching the square pressing roller a to the support plate 1 via the spring 3 and the cushioning material 4, the square pressing roller a
It is also possible to attach it to the support plate 1 via a hinge so that it can escape to the side opposite to the traveling direction. For example, the support plate 1 and the square pressing roller a are connected by a frame,
The frame and the support plate 1 are rotatably attached via a hinge. The frame is fixed so as not to rotate in the traveling direction, and is attached so as to rotate so that the square pressing roller a escapes only in the direction opposite to the traveling direction. At this time, it is preferable that the spring 3 and the cushioning material 4 be provided between the supporting plate 1 and the frame so that the frame returns to its original position. Other than this, the corner pressing roller a is not particularly limited as long as it is mounted so that it can escape backward.

The support plate 1 is a metal plate such as aluminum or iron, a wood plate such as veneer plate or particle board, or FR.
A hard plastic plate made of P (glass fiber reinforced plastic), polyester, acrylic, vinyl chloride, etc., an inorganic plate such as a slate plate, a wood wool cement plate, or a composite plate of these materials. Not done. It is also possible to make the support plate transparent so that the sheet can be cut while checking the cut state of the sheet. The thickness of the support plate is preferably such that it is not easily deformed by being pressed by a hand, and is preferably 0.3 mm or more.

The shape of the support plate 1 is not particularly limited, and may be a polygon such as a triangle, a quadrangle, or a hexagon with all edges formed by a straight line, or may be formed by a curved line, or a straight line and a curved line. You may make it the shape which combined and. Whatever the shape, the square pressing roller a has a lower vertical surface than the vertical surface formed by connecting the lower edge a ′ of the supporting plate to the supporting plate edge near the square pressing roller a. The structure is such that the lower part a ′ projects outward. This is because when the corner pressing roller a is applied to the entering corner line X, if the support plate 1 near the corner pressing roller a is projected, it will hit a wall surface part such as a parapet, and the roller a will enter the corner entering line X.
Since it becomes impossible to press, the square pressing roller a is preferably attached at a position where the entering corner line X can be pressed.

When the square pressing roller a is attached to only one place on the support plate, it is preferable to cut the square pressing roller a and the edge of the support plate 1 while pressing the support plate 1 against the wall surface. In this case, in order to reduce the friction between the edge of the support plate and the wall surface or the sheet Y that is erected on the wall surface, it is possible to provide a guide roller c at the edge of the support plate. The guide roller c is preferably attached to a support plate so that the roller can run on the wall surface. For example, a guide plate can be provided on the edge of the support plate and the guide roller c can be attached to this guide plate. There is no particular limitation on the shape of the ball or the like and the material, and the same rollers as the rollers a and b for supporting the support plate 1 can be used, and the number of installations is 1
The number may be one or plural and is not particularly limited.

It is also possible to attach the guide roller c to the support plate 1 or the guide plate via the spring 3 and the cushioning material 4 in order to absorb the unevenness of the wall surface. Square push roller a
If two or more guide rollers are provided, the guide roller c may or may not be installed, and the two or more corner pressing rollers a may be pressed from above the sheet Y at the corner to allow the sheet Y to enter the corner. It is possible to cut along the line X. In this case, it is preferable that the square pressing roller a is installed so as to be substantially on the same straight line.

The cutter 2 is attached to the support plate 1 so that the tip 2'of the cutter passes on or near a line formed by the advance of the square pressing roller a. It is preferable that the orientation of the cutter 2 is parallel to the entering corner line X, and the angle between the cutter 2 and the sheet Y at the time of cutting is set to be an acute angle. Further, it is preferable that the angle of the cutter 2 is rotatably attached to the support plate 1 so that it can be changed appropriately, and is fixed at the time of cutting.
For example, a substantially central portion of the handle of the cutter 2 is fixed to the support plate 1, the handle 5 or the like with a bolt or the like so that the handle can be rotated around the bolt. Further, the cutter 2 of the present invention has a blade thickness of 0.1 to 1 mm and a width of 10 such as a so-called cutter knife composed of a replaceable blade and a holder, or a knife knife.
A cutter of about 50 mm can be used.

The cutter 2 is preferably attached by penetrating the support plate 1, but it may be attached to the edge of the support plate. When mounting the support plate 1 through it, the cutter 2
The opening 6 larger than the cross section is provided in the support plate 1, and the cutter 2 is inserted into the opening 6. The opening 6 is preferably provided near the edge of the support plate to which the square pressing roller a is attached.

An example of the positional relationship between the position of the square pressing roller a and the cutter 2 will be described. One wheel-shaped square pressing roller a
In the case of a rectangular support plate having three wheel-shaped rolling rollers b mounted in the vicinity of a square, the square pressing roller a is inclined at an angle of about 45 degrees so as to press the sheet Y along the entering corner line X. Are attached so as to project outward from the support plate 1, and the remaining three rolling rollers b are installed vertically to the support plate 1 near the corners.

Further, the cutting angle of the cutter 2 is set so as to be able to rotate within a range of 30 to 60 degrees with respect to the sheet Y to be cut, and it is behind the square pressing roller a with respect to the traveling direction of the support plate 1. Install so that the tip 2'of the cutter is located on the side. The shape of the cutter 2 can be an ordinary flat plate, and the size is about 0.1 to 1 mm in thickness.
The width of the entire blade is about 10-50 mm and the length is 50-150
A blade folding type of about mm is preferable. Further, it is preferable that the cutter 2 is entirely protected by a case, and the blade can be made to project from the case at the time of use so as to be housed in the case after use.

Preferred shape of the support plate 1 and rollers a,
b, as a preferable mounting position of the cutter 2, for example, the size of the support plate is a rectangular shape of 50 to 200 mm in length and width,
A cutter 2 is installed by penetrating the support plate 1. The cutter 2 may be rotatably attached to the support plate 1 and may be parallel to the support plate 1 when not in use. Rectangular support plate 1
Wheel-shaped rollers a and b are attached to the four corners of the above, and both are provided in parallel so that they move in the same direction. These rollers a, b
One of them is used as a square pressing roller a so as to project from the edge of the supporting plate. As another shape, a rectangular support plate 1
The lower part a ′ of the roller is projected from the support plate 1 so that the wheel-shaped square pressing roller a is aligned on one side, and is attached at an angle of about 45 degrees. Two or more rolling rollers b are provided near the edge of the support plate 1 on the opposite side. The roller b is not limited to a wheel-shaped roller or a ball-shaped roller.

A handle 5 is provided on the support plate 1 to facilitate the work.
Etc. can be appropriately installed, and the handle 5 is preferably of a size and shape that can be easily pushed or held by hand. For example, the handle 5 may be formed integrally with the cutter 2. The material of the handle 5 is not limited to metal plate, plastic, or wood.

[0025]

EXAMPLE Next, using the sheet cutting instrument of the present invention,
An example in which a sheet is cut in the corner portion will be described with reference to the drawings.

(Creation of sheet cutting device) Length 150 mm,
Four plastic wheel-shaped rollers are attached to a square of a support plate made of aluminum with a width of 100 mm and a thickness of 1.5 mm, one of which is used as a square pressing roller, and the lower part of the roller projects 10 mm from the support plate. Was installed with a 45 degree inclination. The size of the three rolling rollers supporting the supporting plate was 30 mm in diameter and 20 mm in width, and the size of the square pressing roller was 30 mm in diameter and 5 mm in width. A guide roller having a diameter of 20 mm and a width of 10 mm was attached to the edge of the support plate on the side where the square pressing roller was attached.

A cutter knife having a cutter blade having a thickness of 0.3 mm and a width of 30 mm was attached to the support plate so that the advancing direction of the guide plate and the side surface of the cutter blade were parallel to each other. The attachment position was set so that the tip of the cutter was almost at the same position as the rear roller, and a wooden handle was attached to approximately the center of the support plate to create a sheet cutting instrument.

(Cut of Waterproof Sheet at Corner) A glass cloth laminated on the intermediate layer has a thickness of 1.5 mm and a width of 1500.
A roof sheet with a parapet was waterproofed by an insulation method using a waterproof sheet made of a long-sized soft vinyl chloride resin sheet of mm. In the parapet part, a tarpaulin laying the floor surface was launched up to the bottom of the parapet. Next, apply the wheel-shaped square pressing roller of the above-mentioned sheet cutting device from above the waterproof sheet to the corner line, and at the same time press the guide roller against the sheet on the wall surface, using the cutter blade attached to the sheet cutting device. The tarpaulin was cut along the corner line. The end of the waterproof sheet was cut to a predetermined width along the entering corner line, and the entering corner had a beautiful finish.

[0029]

Since the sheet cutting device of the present invention slides on the upper surface of the sheet by the square pressing roller and the rolling roller, the sheet is easily cut because the friction between the sheet and the cutting device is small even if the cutting position is long. It is possible to cut along the entry corner line, and it is possible to reliably cut the sheet along the entry corner line by the wheel-shaped square pressing roller obliquely attached. Also, because it is supported by rollers, it is possible to cut along the corner line even if there is some unevenness.

By attaching the guide roller to the support plate, the friction between the support plate and the sheet or the underlayer of the wall which is erected on the wall surface is reduced, and even if a long distance is cut, it can be easily cut without fatigue. In addition, it is possible to prevent the risk of the wall surface being scratched by the edge of the support plate. .

Further, the corner pressing roller, the guide roller, etc. are fixed to the support plate via a spring or a cushioning material, or the corner pressing roller is attached to the support plate via a hinge so that it can escape to the side opposite to the traveling direction. By attaching it, even if there are irregularities in the entry corner or the vicinity of the entry corner, it can be absorbed by springs, cushioning materials or hinges, derailing from the entry corner line and cutting, or the blade of the cutter is broken. It will not be lost.

[Brief description of drawings]

FIG. 1 is a plan view of an example of the sheet cutting device of the present invention.

[Fig. 2] Rear view

FIG. 3 is a side view

FIG. 4 is a sectional view taken along line (4)-(4) of FIG.

5 is a sectional view taken along line (5)-(5) of FIG.

[Description of sign]

a: square pressing roller, b rolling roller :, c: guide roller, 1: support plate, 2: cutter, 2 ': tip of cutter, 3: spring, 4: cushioning material.

Claims (6)

[Claims] 1. At least one wheel-shaped square pressing roller and 2
At least one of the squeezing rollers comprises at least one rolling roller and a cutter attached to a support plate,
An angle with respect to a plane formed by connecting the square pressing roller and the lower part of the rolling roller, and the lower part of the square pressing roller is on a vertical plane lowered from the end of the support plate to the plane or The cutter is attached to the support plate so as to be positioned outside the vertical surface, and the cutter is attached to the support plate so that the tip of the cutter passes on or near a line formed by the advance of the square pressing roller. Sheet cutting equipment in the corner. 2. A support plate having at least one side which is a straight line, on which at least one wheel-shaped angular pressing roller, three or more rolling rollers and a cutter are attached, the angular pressing roller being a supporting plate. Mounted diagonally near the straight side of the support plate so that the lower part of the roller protrudes on a vertical plane lowered from the straight side formed by connecting three rolling rollers or outside the vertical plane. In the corner portion, the cutter is attached to the support plate so that the tip of the cutter passes on or near a line formed by the advance of the square pressing roller and parallel to the straight side of the support plate. Sheet cutting equipment. 3. The sheet cutting device according to claim 1, wherein a guide roller is attached to a side surface of the support plate on the side where the wheel-shaped square pressing roller is attached. 4. The sheet cutting device according to claim 1, wherein the wheel-shaped square pressing roller is attached to the support plate via a spring or a cushioning material. 5. The sheet cutting instrument according to claim 3, wherein the guide roller is attached to the support plate via a spring or a cushioning material. 6. The wheel-shaped square pressing roller is attached to a supporting plate via a hinge so as to be able to escape to the side opposite to the traveling direction, according to any one of claims 1 to 5. Sheet cutting instrument described.