JP2020044104A - Sheet cutter - Google Patents

Abstract

To cut a sheet by a simple structure using one blade.SOLUTION: A sheet cutter 100 includes a blade 5, a base 1, a base 2, an inclined surface 7a on which the blade 5 is arranged at a first position which is at a predetermined height from a floor and in which the sheet can be cut in a first direction parallel to the floor when the base 1 is arranged on the floor, an inclined surface 6a on which the blade is arranged at a second position in which the sheet can be cut in a second direction opposite to and parallel to the first direction from the first position when the base 2 is arranged on the floor, and a hole part and a column part 9a, 9b which are arranged on a blade support part 8 to move the blade 5 to the first position and the second position.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sheet cutter.

  A sheet cutter for cutting a sheet such as a floor covering is known. For example, a base and a pressing and cutting member rotatably attached to the front end of the base, the pressing and cutting member includes a rug whose contact surface with the rug is formed into a curved surface. A pressing portion to be pressed and a handle that is connected to the pressing portion are formed, and a cutting blade is internally provided in the grip so that the cutting blade can come and go, and the cutting blade is formed in the pressing portion. 2. Description of the Related Art A rug cutting tool that can freely enter and exit through an access hole is known.

  A first blade, a second blade, a main body accommodating the first blade and the second blade, and a guide connected to the main body and provided with a gap for projecting the blade; A cutter in which a blade or a second blade protrudes from a gap is known.

Japanese Utility Model Publication No. 59-098867 JP 2016-39894 A

In the rug cutting device described in Patent Literature 1, when cutting an extra portion of a floor covering such as a wall, when used in a place surrounded by a wall, a problem that a cutting start and a cutting end cannot be cut to the end. There is a point.
Further, the cutter described in Patent Literature 2 has two blades, so that the structure is complicated and the device is also upsized.
In one aspect, an object of the present invention is to cut a sheet with a simple structure using one blade.

  To achieve the above object, a disclosed sheet cutter is provided. This sheet cutter is configured such that when the first base, the second base, and the first base are arranged on the base surface, the sheet cutter can cut a sheet in a first direction parallel to the base surface. Placing the blade at the first position at the height and cutting the sheet from the first position in the second direction opposite to and parallel to the first direction when the second base is placed on the base surface It has an arrangement part for disposing the blade at a possible second position, and a moving part for moving the blade to the first position and the second position.

In one aspect, a sheet can be cut with a simple structure using one blade.
The above and other objects, features and advantages of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings which illustrate preferred embodiments of the present invention.

It is a six-view figure showing the sheet cutter of an embodiment. It is a perspective view showing the sheet cutter of an embodiment. It is a figure explaining the inside of a sheet cutter. It is a figure explaining the inside of a sheet cutter. It is a figure explaining the example of use of the sheet cutter of an embodiment. It is a figure explaining the example of use of the sheet cutter of an embodiment. FIG. 6 is a diagram illustrating a relationship between a sheet cutter and a sheet after the movement. FIG. 9 is a diagram illustrating a relationship between a sheet cutter and a sheet when the remaining sheet is cut. FIG. 9 is a diagram illustrating a relationship between a sheet cutter and a sheet when the remaining sheet is cut.

Hereinafter, a sheet cutter according to an embodiment will be described in detail with reference to the drawings.
<Embodiment>
FIG. 1 is a six-sided view showing a sheet cutter according to an embodiment.

  The sheet cutter 100 according to the embodiment can be used, for example, when cutting a sheet such as a floor covering. The floor covering is not particularly limited, and examples thereof include a cushion floor having a predetermined thickness.

The sheet cutter 100 can cut a sheet in any direction on the left and right sides of the paper of the plan view by changing the position of a blade support portion described later. FIG. 1 shows a six-view drawing of the position of the blade supporting portion when the sheet is cut in the left direction on the paper of the plan view (leftward movement).
The sheet cutter 100 has a base (first base) 1 and a base (second base) 2 perpendicular to the base 1.

  As shown in the plan view of FIG. 1, the width h1 of the sheet cutter 100 is 130 mm as an example, and the length h2 is 65 mm as an example. Further, as shown in the right side view, the length h3 is, for example, 65 mm.

As shown in the left side view and the right side view of FIG. 1, the base 1 and the base 2 are integrally connected via a connecting portion 5 so as to form 90 ° in side view. In the following description, main symbols are attached to the left side view, and supplementary symbols are assigned to other drawings in the six views.
The connecting portion 5 is provided with a notch 5a from which the blade 5 of the cutter projects when cutting.
Both the base 1 and the base 2 are arranged on a floor or a wall perpendicular to the floor. The floor is an example of the base surface.

  When the base 1 is placed on the floor, the base 2 can be placed along the wall. Also, when the base 2 is placed on the floor, the base 1 can be placed along the wall.

  As shown in the left side view of FIG. 1, a member 6 is provided on an upper portion of the base 1. A member 7 is provided on the upper part of the base 2. The member 6 has a slope 6a that forms an acute slope with respect to the base 1 in side view. The member 7 has a slope 7a that forms an acute slope with respect to the base 2 when viewed from the side. The slope 6a and the slope 7a are an example of an arrangement unit that arranges the blade 5 at the first position and the second position. The angle of the slope 7a with respect to the floor when the base 1 is arranged on the floor is, for example, 50 °. The angle of the slope 6a with respect to the floor when the base 2 is arranged on the floor is, for example, 50 °.

Here, the first position is a position at a predetermined height above the floor suitable for cutting the sheet, where the blade can be arranged to cut the sheet in a first direction parallel to the floor. The second position is a position where the sheet can be cut in a second direction opposite to and parallel to the first direction.
The slope 6a and the slope 7a do not need to be perfect planes, respectively, as long as the first position and the second position can be secured by the contact of the blade support portion 8.

A blade support 8 that supports the blade 5 can be arranged on one of the slope 6a and the slope 7a. When the blade support portion 8 is disposed on the slope 7a when the base 1 is disposed on the floor, the blade 5 is disposed at a position where the blade 5 cuts the sheet.
The user can freely move the blade support 8 between the slopes 6a and 7a.

The blade supporting portion 8 has a width corresponding to the width of the blade 5, and has a blade fixing portion that regulates wobbling of the inserted blade 5. The blade 5 inserted into the blade fixing part can control and release the removal and insertion of the blade fixing part by rotating the dial 8b.
The blade support 8 has a grip 8c that can be gripped when the user moves the blade support 8 between the slopes 6a and 7a.
FIG. 2 is a perspective view illustrating the sheet cutter according to the embodiment.

In FIG. 1, the blade support 8 is disposed on the slope 7a side, but in FIG. 2, the blade support 8 is disposed on the slope 6a side. This position is the position of the blade support portion when the sheet is cut rightward in the plane of the paper in the plan view of FIG.
By the way, between the slope 6a and the slope 7a, hollow or solid pillars 9a and 9b are provided.
3 and 4 are views for explaining the inside of the sheet cutter.

  3A is a right side view in FIG. 1, FIG. 3B is a cross-sectional view taken along line AA in FIG. 3A, and FIG. It is sectional drawing in the BB line in a).

As shown in FIG. 3 (b), the blade support portion 8 has the column portion 9a inserted therein, the hole 8d having a diameter slightly larger than the diameter of the column portion 9a, and the column portion 9b inserted therethrough. And a hole 8e having a diameter slightly larger than the diameter of the hole 8e. The diameters of the holes 8d and 8e are preferably such that the blade support 8 can move smoothly without being shaken when the blade support 8 moves between the slopes 6a and 7a.
The pillars 9a and 9b are inserted into the holes 8d and 8e, and function as guides for moving the blade support 8 to the slope 6a or the slope 7a.
The holes 8d and 8e and the columns 9a and 9b provided in the blade support 8 are examples of a moving unit.

  The slopes 6a and 7a of the embodiment are not parallel, and the trajectories of the respective extension lines of the slopes 6a and 7a intersect at a virtual center point P. The angle θ formed by each extension line of the slopes 6a and 7a and the center point P is, for example, 10 °. The pillar portions 9a and 9b are slightly curved so as to rotate around the virtual center point P when the blade supporting portion 8 moves between the slopes 6a and 7a. By making the column parts 9a and 9b in such a shape, the rotation can be performed smoothly.

As shown in FIG. 3A, when the blade support 8 moves between the slopes 6a and 7a, the locus of a predetermined point of the blade support 8 is an arc rotated by 10 ° with respect to the center point P. Become. The blade support 8 may be configured to move in parallel between the slopes 6a and 7a.
Further, as shown in FIG. 3A, on one side surface of the blade supporting portion 8, convex portions (engaging portions) 8f and 8g are provided.
As shown in FIG. 3C, concave portions (engaged portions) 6b and 6c are provided at portions of the slope 6a corresponding to the projections 8f and 8g.

  FIG. 4A is a right side view when the blade supporting portion is moved to the slope 6a side, and FIG. 4B is a cross-sectional view taken along line AA in FIG. FIG. 4C is a cross-sectional view taken along line CC in FIG. 4A.

As shown in FIG. 4A, the other side surface of the blade supporting portion 8 is provided with convex portions 8h and 8i. Also, as shown in FIG. 4B, concave portions 7b and 7c are provided in portions of the slope 7a corresponding to the projections 8h and 8i.
In this embodiment, two convex portions and two concave portions are arranged. However, the number of convex portions and concave portions is not limited to this, and may be one or three or more.

  Further, in the present embodiment, the protrusions 8f to 8i are provided on the blade supporting portion 8, and the concave portions are provided on the slopes 6a and 7a. However, the present invention is not limited to this, and a concave portion may be provided on the blade supporting portion 8 and a convex portion may be provided on the slopes 6a and 7a.

  Further, in the embodiment, the blade support 8 is brought into contact with the slopes 6a and 7a, and the blade support 8 is fixed by the protrusion and the recess. However, the present invention is not limited to this, and the blade support portion 8 may be fixed by the protrusion and the concave portion without making the blade support portion 8 abut on the slopes 6a and 7a. In short, it is only necessary that the blade supporting portions 8 are arranged at the first position and the second position.

Returning to FIG. 1, the description will be continued. As shown in the left side view, the sheet cutter 100 is provided with a grip 7d to which a user can put a finger when cutting a sheet. When the user places his or her finger on the grip 7d, the fingertip ball at the base of the little finger to the base of the palm contacts the surface 7e. The thumb ball at the base of the thumb comes into contact with the surface 6e. Thus, the user can firmly hold the sheet cutter 100 and can stably move the sheet cutter 100 from the back side of the paper to the front side of the paper.
<How to use>
Next, a usage example of the sheet cutter 100 according to the embodiment will be described.
FIGS. 5 and 6 are diagrams illustrating an example of use of the sheet cutter according to the embodiment.

  5 and 6, walls B1, B2, B3, and B4 surrounding the floor A are arranged. In this usage example, a case is illustrated in which the sheet 200 to be cut has already been cut along the walls B2, B3, and B4, and the sheet 200 to be cut is cut along the remaining wall B1.

  First, the user determines the protrusion amount of the blade 5 according to the thickness of the sheet 200 to be cut. An example of the protruding amount of the blade 5 is an amount by which the sheet 200 can be cut without the blade 5 hitting the wall B when the sheet 200 is cut.

When the amount of protrusion is determined, the user presses the sheet 200 with the base 1, and the sheet cutter 100 moves so that the base 2 contacts the wall B1 via the sheet 200 and the end 101 of the sheet cutter 100 contacts the wall B2. Place. Then, the user presses the sheet 200 with the base 1 and the base 2 so that the arranged sheet 200 does not shift. Thereby, the blade 5 is disposed at an acute angle at a first position at a predetermined height from the floor A where the sheet 200 can be cut from the front side to the back side (first direction) of FIG. Can be. By cutting the sheet 200 at the first position, the gap between the cut sheet 200 and the wall B1 can be eliminated.
In this case, the user holds the holding portion 6d and cuts the sheet 200 from the front side to the back side in FIG. 5 (from right to left in FIG. 6).
FIG. 7 is a diagram illustrating a relationship between the sheet cutter and the sheet after the movement. FIG. 7 illustrates a piece 201 of the sheet 200.

  When the end portion 102 of the sheet cutter 100 contacts the wall B3 in the room, the portion h4 of the sheet 200 remains without being cut. This portion h4 is slightly shorter than the width of the sheet cutter 100.

At this time, the user once moves the sheet cutter 100 away from the sheet 200. Then, the sheet cutter 100 is rotated by 180 ° to arrange the base 2 on the floor A side, and arrange the base 1 on the wall B1 side.
Then, the user grips the grip 8c and moves the blade support 8 from the slope 7a to the slope 6a. The order of arrangement and movement may be interchanged.
FIGS. 8 and 9 are diagrams showing the relationship between the sheet cutter and the sheet when the remaining sheet is cut.

  According to the method described with reference to FIG. 7, the blade 5 can be arranged on an extension of the first direction. The user holds the holding portion 7d and applies a force so that the base 2 approaches the wall B1 while the base 1 is placed on the floor A. Thus, the sheet 200 at the end 102 is cut. The user moves the sheet cutter 100 from the front side to the back side (left side to right side in FIG. 8) of FIG. The blade 5 moves in a direction parallel to. Therefore, it is possible to cut the sheet 200 at the portion h that has been left uncut. In this way, it is possible to cut out the sheet to be spread on the floor A.

As described above, according to the sheet cutter 100, when the blade 1, the base 1, the base 2, and the base 1 are arranged on the floor A, the sheet 200 is moved in the first direction parallel to the floor A. An inclined surface 7a at which the blade 5 is disposed at an acute angle at a first position at a predetermined height from the floor A that can be cut, and a direction opposite to the first direction from the first position when the base 2 is disposed on the floor A An inclined surface 6a at which the blade 5 is disposed at an acute angle at a second position where the sheet 200 can be cut in a parallel second direction, and a blade support portion for moving the blade 5 to the first position and the second position 8 have holes 8d and 8e and pillars 9a and 9b.
Thus, the sheet 200 can be cut with a simple structure using one blade.

  When the blade 5 is located at the first position, the base 2 faces the surface perpendicular to the floor A via the sheet 200, and when the blade 5 is located at the second position, the base 1 Are opposed to a plane perpendicular to the floor A via the sheet 200. Thus, the uncut portion of the sheet 200 can be pressed by a simple operation in such a manner that the sheet cutter 100 is turned over, and the process can be shifted to the cutting of the uncut sheet 200 as it is.

Further, a fixing portion for fixing the blade at each of the first position and the second position is provided. Specifically, the blade support portion 8 having the protrusions 8f, 8g, 8h, and 8i and supporting the blade 5, and abuts on the blade support portion 8 when the blade 5 is disposed at the first position, and the protrusion 8h , 8i engaging with the blade supporting portion 8 when the blade 5 is located at the second position, and the concave portions 6b, 6c engaging with the projections 8f, 8g. Slope 6a is provided.
Accordingly, when cutting the sheet 200, the sheet 5 can be cut stably without shifting the blade 5.

  When the blade 5 is moved from the first position to the second position, the blade 5 is rotated and moved with reference to a virtual center point. Specifically, a blade supporting portion 8 having holes 8d and 8e and supporting the blade 5, and pillars 9a and 9b inserted into the holes 8d and 8e and curved along the direction of rotational movement. , Was provided. Thereby, rotation can be performed smoothly.

  As described above, the sheet cutter of the present invention has been described based on the illustrated embodiment, but the present invention is not limited to this, and the configuration of each part is replaced with an arbitrary configuration having a similar function. can do. Further, other arbitrary components and steps may be added to the present invention.

  The above merely illustrates the principles of the invention. In addition, many modifications and changes will be apparent to those skilled in the art and the present invention is not limited to the exact configuration and application shown and described above, but all corresponding variations and equivalents may be Claims and their equivalents are considered to be within the scope of the invention.

1, 2 base 5 connecting portion 5a cut 6, 7 member 6a, 7a slope 6b, 6c concave portion 7b, 7c concave portion 7d grip portion 7e surface 8 blade support portion 8b dial 8c grip portion 8d, 8e hole portion 8f, 8g, 8h, 8i Projection 9a, 9b Column 100 Sheet cutter 101, 102 End 200 Sheet A Floor B1, B2, B3, B4 Wall

Claims (6)

A first base,
A second base,
When the first base is disposed on a base surface, the blade is disposed at a first position at a predetermined height from the base surface capable of cutting a sheet in a first direction parallel to the base surface; When the second base is disposed on the base surface, the blade is moved from the first position to a second position where the sheet can be cut in a second direction opposite to and parallel to the first direction. An arrangement section to be arranged;
A moving unit that moves the blade to the first position and the second position;
A sheet cutter comprising:   When the blade is arranged at the first position, the second base faces a surface perpendicular to a base surface via the sheet, and the blade is arranged at the second position. The sheet cutter according to claim 1, wherein the first base faces a surface perpendicular to a base surface via the sheet.   The sheet cutter according to claim 1, further comprising a fixing portion that fixes the blade at each of the first position and the second position. The fixing part,
A blade supporting portion having a first engaged portion and a second engaged portion and supporting the blade;
A first abutting portion having an engaging portion that abuts on the blade supporting portion when the blade is disposed at the first position and engages with the first engaged portion;
A second contact portion having an engagement portion that contacts the blade support portion when the blade is disposed at the second position and that engages with the second engaged portion;
The sheet cutter according to claim 3, comprising:   5. The sheet cutter according to claim 1, wherein when moving the blade from the first position to the second position, the moving unit rotates the blade based on a virtual center point. 6. The moving unit,
A blade support portion having a hole portion and supporting the blade,
A guide inserted into the hole and curved along the direction of the rotational movement;
The sheet cutter according to claim 5, comprising:

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