Apparatus

Abstract

To provide an instrument that can accurately and easily cut a sheet body with a cutter knife or the like at a desired dimension and has high reproducibility. 【Solution means】This instrument (100) includes a plurality of rulers (130) and a stopper (110) with different width dimensions set for each. Since the user can obtain a desired dimension simply by selecting a ruler (130) from a group of rulers (140, 150, 160, 170) without the need for visually reading the scale of the measuring tool and manually adjusting the cutting position, the sheet body can be cut accurately and easily. Since the said ruler (130) can be an invariant reference for the desired dimension, cutting of the same dimension can be performed efficiently. By adjusting the step between the contact surface (219) of the sheet body and the contact surface (220) of the ruler provided on the contact surface (218) of the stopper (110), an arbitrary correction value can be set for the cutting dimension of the sheet body.

Description

Technical Field

[0001] The present invention relates to an instrument.

Background Art

[0002] In manual cutting work using a cutter knife or the like, a method based on the scale of a ruler is known as a means for obtaining a desired dimension.

[0003] Even in an architectural model where dimensional accuracy is required, a method is used in which the dimension of the styrene board to be cut is determined based on the scale of a ruler, and the styrene board is cut based on that dimension.

Prior Art Documents

Non-Patent Documents

[0004]

Non-Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In cutting work based on the scale of a ruler, since the scale is read visually and the cutting position is adjusted manually, the dimension of the cut material is likely to differ from the desired dimension, and it is also difficult to ensure accurate parallelism. The same applies not only to cutting but also to line drawing work.

[0006] This invention is for solving the above problems. That is, it is an object of the present invention to provide an instrument that does not require visually reading the scale of a ruler, has high work reproducibility, an easy work process, and can improve the accuracy, reproducibility, and efficiency of cutting work.

Means for Solving the Problem

[0007] An instrument, which is an invention for achieving the above object, will be described below.

[0008] The instrument of the present invention includes a stopper having a first contact surface against which a linear end formed on the side of the sheet body abuts, and a plurality of types of rulers formed in strip shapes with different width dimensions. The plurality of types of rulers include a millimeter-graduated ruler group having a plurality of rulers formed with millimeter-unit graduations (First unit increment) and is characterized by including the same. (First unit increment gauge group)

[0009] Further, in the instrument of the present invention, the plurality of types of rulers include a comma-graduated ruler group having a plurality of rulers formed with comma-unit graduations (Second unit increment shorter than the first unit) and is characterized by including the same. (Second unit increment gauge group)

[0010] Further, in the instrument of the present invention, the plurality of types of rulers include a 10-mm-graduated ruler group having a plurality of rulers formed with 10-mm graduations (Third unit increment longer than the first unit) and is characterized by including the same. (Third unit increment gauge group)

[0011] Further, in the instrument of the present invention, the stopper has a second contact surface against which the ruler arranged on the sheet body abuts, and the first contact surface is provided so as to protrude from the second contact surface.

[0012] Further, in the instrument of the present invention, the stopper includes a main body on which the second contact surface is formed, and a plate on which the first contact surface is formed and which is provided on the bottom surface of the main body. The plate is characterized in that the protruding width of the first contact surface is provided so as to be adjustable.

Advantages of the Invention

[0013] ​​​In the cutting operation based on the scale of the measuring tool, visual reading of the scale and manual adjustment of the cutting position are not required. Therefore, the material can be cut accurately and easily while ensuring the parallelism with the desired dimensions. Also, operations involving cutting multiple pieces of the same dimension can be easily performed.

Brief Description of the Drawings

[0014]

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Mode for Carrying Out the Invention

[0015] Hereinafter, an instrument (100) according to an embodiment of the present invention will be described with reference to the drawings. The instrument (100) of this embodiment is typically used for cutting a styrene board (S) to a predetermined width in the production of architectural models. However, the use of this instrument (100) is not limited to the production of architectural models and may be used for other purposes. Further, the instrument (100) according to this embodiment is not limited to cutting board materials such as styrene boards (S), and may be used for cutting sheet-like materials such as leather, paper, film, felt, and carpets.

[0016] As shown in FIG. 1, the instrument (100) of this embodiment includes a plurality of types of rulers (130) and a stopper (110). Each of the rulers (130) is disposed on a styrene board (S) to be cut and is used by being applied to the stopper (110).

[0017] The plurality of types of rulers (130) of this embodiment include a plurality of ruler groups (140, 150, 160, 170). Each of the ruler groups (140, 150, 160, 170) is a set of rulers (130) manufactured based on a predetermined standard. The plurality of ruler groups (140, 150, 160, 170) of this embodiment include a millimeter-graduated ruler group (140), a comma-graduated ruler group (150), a centimeter-graduated ruler group (160), and a 10-centimeter ruler (170).

[0018] As shown in FIG. 2, the millimeter-graduated ruler group (140) is a set of nine rulers (141, 142, 143, 144, 145, 146, 147, 148, 149) with a width dimension graduated in 1 mm increments. Specifically, the rulers (130) are formed such that the width dimensions are 11 mm (141W), 12 mm (142W), 13 mm (143W), 14 mm (144W), 15 mm (145W), 16 mm (146W), 17 mm (147W), 18 mm (147W), and 19 mm (149W). Each of the millimeter-scale rulers (141, 142, 143, 144, 145, 146, 147, 148, 149) has a different width dimension, but since the other configurations are the same, the ruler (141) with a width dimension of 11 mm will be mainly described below. The 11-mm ruler (141) is a strip-shaped metal plate, formed with a length direction (141L) of 150 mm, a width direction (141W) of 11 mm, and a thickness of 2 mm. Since the 11-mm ruler (141) extends linearly with a uniform width dimension, a pair of longitudinal sides (141a, 141b) are provided in parallel. The width dimension is displayed on the display portion (141D). The display portion (141D) is set at four locations, two on each of the front and back surfaces of the ruler (130) at the ends.

[0019] As shown in FIG. 3, the comma-scale ruler group (150) is a set of nine rulers (151, 152, 153, 154, 155, 156, 157, 158, 159) with a width dimension increment of 0.1 mm. Specifically, the rulers (130) are formed such that the width dimensions are 10.1 mm (151W), 10.2 mm (152W), 10.3 mm (153W), 10.4 mm (154W), 10.5 mm (155W), 10.6 mm (156W), 10.7 mm (157W), 10.8 mm (158W), and 10.9 mm (159W). Each of the comma-scale rulers (151, 152, 153, 154, 155, 156, 157, 158, 159) has a different width dimension, but since the other configurations are the same, the ruler (151) with a width dimension of 10.1 mm will be mainly described below. The 10.1-mm ruler (151) is a strip-shaped metal plate, formed with a length direction (151L) of 150 mm, a width direction (151W) of 10.1 mm, and a thickness of 2 mm. Since the 10.1-mm ruler (151) extends linearly with a uniform width dimension, a pair of longitudinal sides (151a, 151b) are provided in parallel. The width dimension is displayed on the display portion (151D). The display portion (151D) is set at four locations, two on each of the front and back surfaces of the ruler (130) at the ends.

[0020] As shown in Fig. 4, the centimeter-scale ruler set (160) is a set of five rulers (161, 162, 163, 164, 165) with a width dimension in 10 mm increments. Specifically, the rulers (130) are formed such that the width dimensions are 10 mm (161W), 20 mm (162W), 30 mm (163W), 40 mm (164W), and 50 mm (165W). Although each of the centimeter-scale rulers (161, 162, 163, 164, 165) has a different width dimension, since the other configurations are the same, the ruler (161) with a width dimension of 10 mm will be mainly described below. The 10 mm ruler (161) is a plate made of metal formed in a strip shape, with a length direction (161L) of 150 mm, a width direction (161W) of 10 mm, and a thickness of 2 mm. Since the 10 mm ruler (161) extends linearly with a uniform width dimension, a pair of longitudinal sides (161a, 161b) are provided in parallel. The width dimension is displayed on the display portion (161D). The display portion (161D) is set at four locations, two locations each at the ends on both the front and back surfaces of the ruler (130).

[0021] As shown in Fig. 5, the 10 - centimeter ruler (170) is a ruler (130) formed such that the width dimension (170W) is 100 mm. The 10 - centimeter ruler (170) is a plate made of metal formed in a strip shape, with a length direction (170L) of 150 mm, a width direction (170W) of 100 mm, and a thickness of 2 mm. Since the 10 - centimeter ruler (170) extends linearly with a uniform width dimension, a pair of longitudinal sides (170a, 170b) are provided in parallel. The width dimension is displayed on the display portion (170D). The display portion (170D) is set at four locations, two locations each at the ends on both the front and back surfaces of the ruler (130).

[0022] Next, the stopper (110) will be described with reference to Figs. 6 to 9. The stopper (110) is such that one end surface of the styrene board (S) and the longitudinal side of the ruler (130) are abutted. The stopper (110) is made of metal. As shown in FIGS. 6 and 7, the stopper (110) includes a main body (111) and a slide plate (112). The main body (111) includes a base (113) and a convex portion (114). The bottom (245) of the convex portion (114) and the bottom (246) of the slide plate (112) are processed with an anti-slip intention, represented by a knurl.

[0023] As shown in FIG. 8, the base (113) extends in the horizontal direction (126) so that the end face of the styrene board (S) can abut. As shown in FIG. 9, specifically, the base (113) is formed such that the cross-section (vertical cross-section) perpendicular to the horizontal direction (126) is trapezoidal, and includes a bottom (115), a first vertical wall surface (116) serving as a second abutting surface, another vertical wall surface (117), an inclined portion (118), and an upper surface portion (119). The bottom (115) is formed in a rectangular shape when viewed from the bottom. A first vertical wall surface (116) stands upright from one side portion of the bottom (115). Another vertical wall surface (117) stands upright from the other side portion of the bottom (115). The other vertical wall surface (117) is provided higher than the first vertical wall surface (116), and an inclined portion (118) and an upper surface portion (119) are provided from the upper end of the first vertical wall surface (116) toward the upper end of the other vertical wall surface (117).

[0024] On the bottom (115) of the base (113), a convex portion (114) is provided on the other side portion side. As shown in FIG. 9, the convex portion (114) is a portion that protrudes downward in the vertical direction from the bottom (115) with a uniform thickness, and as shown in FIG. 8, it is formed over the longitudinal direction (126) of the base (113). As shown in FIG. 8, the longitudinal dimension (113L) of the base portion (113) and the convex portion (114) is 200 mm. As shown in FIG. 9, the width dimension (115w) of the bottom portion (115) is 60 mm. The width dimension (114w) of the convex portion (114) is 15 mm. Therefore, the width dimension (122) of the bottom portion other than the convex portion (114) is 45 mm. The height dimension (114b) of the convex portion (114) is 1.8 mm. Note that in the present embodiment, the above dimensions are used, but the present invention is not limited to these dimensions.

[0025] As shown in FIG. 8, the slide plate (112) is a plate-like body extending in the longitudinal direction (126) of the base portion (113). As shown in FIG. 9, it is disposed on the side of one side portion (116) at the bottom portion (115) of the base portion (113) of the main body (111). A screw hole (123) is formed in the slide plate (112), and it is fixed to the main body (111) by a bolt (124) inserted from the inclined portion (118) side of the main body. In the fixed state, the end surface of the slide plate (112) located below the one vertical wall surface (116) of the main body (111) functions as a first contact surface. As shown in FIG. 8, the longitudinal dimension (112L) of the slide plate (112) is 202 mm. As shown in FIG. 9, the width dimension (112w) of the slide plate (112) is 35 mm. The thickness dimension (112b) of the slide plate (112) is 1.8 mm. Note that in the present embodiment, the above dimensions are used, but the present invention is not limited to these dimensions.

[0026] As shown in Fig. 9, a long hole (125) through which a bolt (124) is inserted is formed in the main body (111) from the inclined portion (118) to the bottom portion (115). The long hole (125) is formed long in the width direction (127) of the base portion (113), and the fixing position by the bolt (124) can be adjusted in the width direction. The slide plate (112) is fixed to the bottom of the main body (115) by screwing the bolt (124) inserted through the long hole (125) into the screw hole (123) of the slide plate (112). In this embodiment, the slide plate (112) is fixed to the main body so that its position can be changed by 1 mm in the width direction (127).

[0027] The usage form of the above-mentioned instrument (100) will be described.

[0028] First, a method of obtaining desired dimensions using a scale (130) will be described with reference to Figs. 10 and 11. From among sets of scales (140, 150, 160, 170) having different width dimensions, a plurality of scales (130) in a combination that gives the desired width dimension are selected. When the longitudinal sides of the selected scales (130) are brought into contact with each other, a scale (130) having the desired width dimension can be obtained. At this time, if the desired dimension can be obtained with a single scale (130), the number of scales (130) to be selected may be one.

[0029] As an example, when the numerical values of the width dimensions of the desired scale (130) are 13 mm, 26 mm, 81 mm, 177 mm, and further, as examples including the tenths place of the numerical value of the width dimension of the desired scale (130), 22.8 mm, 58.4 mm, 77.7 mm, 183.8 mm, the method of combining the scales (130) will be described below with reference to Figs. 10 and 11.

[0030] <Scale (130) with a width dimension of 13 mm> As shown in Fig. 10(a), when a scale (130) with a width dimension (301) of 13 mm is desired, the 13-mm scale (143) is selected from the millimeter-scale set (140).

[0031] <A ruler (130) with a width dimension of 26 mm> As shown in Fig. 10(b), when a ruler (130) with a width dimension of 26 mm (302) is desired, select the 16-mm ruler (146) from the millimeter-scale ruler group (140) and the 10-mm ruler (161) from the centimeter-scale ruler group (160), and abut the longitudinal sides of the respective rulers (146, 161).

[0032] <A ruler (130) with a width dimension of 81 mm> As shown in Fig. 10(c), when a ruler (130) with a width dimension of 81 mm (303) is desired, select the 11-mm ruler (141) from the millimeter-scale ruler group (140), the 20-mm ruler (162) from the centimeter-scale ruler group (160), and the 50-mm ruler (165), and abut the longitudinal sides of the respective rulers (141, 162, 165).

[0033] <A ruler (130) with a width dimension of 177 mm> As shown in Fig. 10(d), when a ruler (130) with a width dimension of 177 mm (304) is desired, select the 17-mm ruler (147) from the millimeter-scale ruler group (140), the 10-mm ruler (161) from the centimeter-scale ruler group (160), the 50-mm ruler (165), and the 10-cm ruler (170), and abut the longitudinal sides of the respective rulers (147, 161, 165, 170).

[0034] <A ruler (130) with a width dimension of 22.8 mm> As shown in Fig. 11(a), when a ruler (130) with a width dimension of 22.8 mm (305) is desired, select the 10.8-mm ruler (158) from the comma-scale ruler group (150) and the 12-mm ruler (142) from the millimeter-scale ruler group (140), and abut the longitudinal sides of the respective rulers (158, 142).

[0035] <A ruler (130) with a width dimension of 58.4 mm> As shown in Fig. 11(b), when a ruler (130) with a width dimension (306) of 58.4 mm is desired, select the 10.4 mm ruler (154) from the comma-scale ruler group (150), the 18 mm ruler (148) from the millimeter-scale ruler group (140), and the 30 mm ruler (163) from the centimeter-scale ruler group (160), and abut the longitudinal sides of each ruler (154, 148, 163).

[0036] <The ruler (130) with a width dimension of 77.7 mm> As shown in Fig. 11(c), when a ruler (130) with a width dimension (307) of 77.7 mm is desired, select the 10.7 mm ruler (157) from the comma-scale ruler group (150), the 17 mm ruler (147) from the millimeter-scale ruler group (140), and the 50 mm ruler (165) from the centimeter-scale ruler group (160), and abut the longitudinal sides of each ruler (157, 147, 165).

[0037] <The ruler (130) with a width dimension of 183.8 mm> As shown in Fig. 11(d), when a ruler (130) with a width dimension (308) of 183.8 mm is desired, select the 10.8 mm ruler (158) from the comma-scale ruler group (150), the 13 mm ruler (143) from the millimeter-scale ruler group (140), the 10 mm ruler (161) from the centimeter-scale ruler group (160), the 50 mm ruler (165), and the 10-centimeter ruler (170), and abut the longitudinal sides of each ruler (158, 143, 161, 165, 170).

[0038] When aligning the position of the longitudinal side of the ruler (130) with the desired dimension obtained by the above procedure and the straight end formed on the side of the styrene board (S) to be cut, the ruler (130) can indicate the desired dimension to the styrene board (S) to be cut by the width of the ruler (130).

[0039] Next, with reference to FIGS. 12 to 18, a method for dealing with an error (216) caused by the blade thickness (214) of the cutting tool (K) to be used will be described. For example, when a stopper (211) (FIGS. 12 and 13) in which a first contact surface and a second contact surface are formed on the same plane is used, the following error (216) occurs.

[0040] As shown in FIG. 12(a), as an example, with the position of the long side of a ruler (163) having a width dimension of 30 mm aligned with a linear end formed on the side of a styrene board (S) having a thickness dimension of 2 mm, the styrene board (S) and the ruler (163) are brought into contact with a vertical wall surface (215) of a rectangular parallelepiped block (211), and a case of cutting with a cutting tool (K) having a blade thickness (214) of 0.4 mm will be described as shown in FIG. 12(b).

[0041] Note that this block (211) has a dimension (211a) of the long side of the bottom surface of 200 mm, a dimension (211b) of the short side of 30 mm, and a height dimension (211c) of the vertical wall surface of 15 mm.

[0042] As shown in FIG. 12(b), after bringing the styrene board (S) into contact with the vertical wall surface (215) of the block (211), a ruler (163) having a width dimension of 30 mm is placed on the styrene board (S), and with the ruler (163) in contact with the same vertical wall surface (215) as the styrene board (S), when a cutting tool (K) having a blade thickness (214) of 0.4 mm is cut along the ruler (163), as shown in FIG. 13, since the cutting edge of the cutting tool (K) is located at the center of the blade thickness (214), an error (216) of 0.2 mm, which is half the value of the blade thickness (214), is added to the 30 mm, which is the width dimension of the ruler (163), on the cut styrene board (S), and the dimension (217) of the cut material becomes 30.2 mm.

[0043] There are three ways to address the above error and obtain a cutting result of a desired dimension.

[0044] The first method is to select a ruler (130) with a value obtained by subtracting the generated error from the desired dimension. When using a cutting tool (K) with a blade thickness (214) of 0.4 mm to achieve a desired cutting dimension of 30 mm in the above example, if cutting is performed using a gauge (158, 149) with a length of 29.8 mm obtained by subtracting 0.2 mm of the error difference, the additional 0.2 mm of error (216) will be offset. Specifically, by cutting with a 29.8 mm gauge (158, 149) formed by combining a 10.8 mm gauge (158) from the comma-scale gauge group (150) and a 19 mm gauge (149) from the millimeter-scale gauge group (140), the 0.2 mm (216) of error added due to the blade thickness (214) is offset by a negative 0.2 mm resulting from the 29.8 mm width of the gauge (158, 149) relative to the desired dimension of 30 mm, enabling a cutting result of 30 mm to be obtained.

[0045] The second method is to pre-cut the styrene board (S) to be cut with a gauge (130) of an arbitrary dimension, and then select and cut with a gauge (130) having a value obtained by subtracting the desired dimension from the pre-cut board. When desiring a cutting dimension of 30 mm in the above example, as an example, first, based on a 50 mm gauge (165) in the centimeter-scale gauge group (160), the styrene board (S) is pre-cut to obtain a styrene board (S) with a dimension of 50.2 mm. When cutting this styrene board (S) with a 20 mm gauge (162) in the centimeter-scale gauge group (160), a cutting width of 20.2 mm due to cutting with the 20 mm gauge (162) is subtracted from 50.2 mm, enabling a cutting result of 30 mm to be obtained.

[0046] The third method is to create an offset between the contact surface of the styrene board (S) and the contact surface of the gauge (130) by means of a step provided as an extension on the first contact surface where the styrene board (S) abuts and the second contact surface where the gauge (130) abuts on the side surface of the stopper (110), thereby correcting the error caused by the blade thickness (214). Next, the details will be described below based on FIGS. 14, 15, 16, 17, and 18.

[0047] As shown in FIGS. 14 and 15, the stopper (110) has a stepped portion provided as an extension on one vertical wall portion (219) of the lower slide plate (112) that serves as the first contact surface against which the styrene board (S) abuts, and one vertical wall surface (116) of the upper main body (111) that serves as the second contact surface against which the scale (130) abuts, in a shape combining the main body (111) and the slide plate (112).

[0048] As shown in FIGS. 16(a) and 16(b), after a styrene board (S) with a thickness dimension of 2 mm is abutted against the stopper (110), in the same manner as in the above example, a scale (163) with a width dimension of 30 mm is placed on the styrene board (S), and when the scale (163) is abutted against the stopper (110), the styrene board (S) abuts against one vertical wall portion (219) of the slide plate (112) at the lower part of the stopper (110), and the scale (163) abuts against one vertical wall surface (116) of the main body (111) at the upper part of the stopper (110).

[0049] As shown in FIG. 17, one vertical wall surface (116) of the upper main body (111) against which the scale (163) with a width dimension of 30 mm abuts is offset in the negative X-axis direction with respect to one vertical wall portion (219) of the lower slide plate (112) against which the styrene board (S) abuts, and a step is formed on the two contact surfaces (219, 116). Thereby, after the styrene board (S) is abutted against the stopper (110), when the scale (163) with a width dimension of 30 mm is placed on the styrene board (S) and the scale (163) is abutted against the stopper (110), the scale (163) with a width dimension of 30 mm with respect to the styrene board (S) shows a value (225) obtained by subtracting the offset value (221) due to the step from the dimension of the scale (163).

[0050] At this time, if the offset value (221) of the step is set to half the value of the blade thickness (214) of the cutting tool (K) used for cutting, when cutting with the cutting tool (K), a value equal to the subtracted offset value (221) is added as an error (216) caused by the blade thickness (214) of the cutting tool (K). Therefore, a cutting result (226) equal to the width dimension of the selected ruler (163) as the desired dimension can be obtained.

[0051] As an example, a case where a stopper (110) is used to cut a styrene board (S) with a thickness dimension of 2 mm using a cutting tool (K) with a blade thickness (214) of 0.4 mm and a desired dimension of 30 mm will be described below with reference to FIG. 17.

[0052] First, on the contact surfaces (219, 116) of the stopper (110), the offset value (221) of the step formed by one vertical wall portion (219) of the slide plate (112) and one vertical wall surface (116) of the main body (111) is set to 0.2 mm, which is half the value of the blade thickness (214) of the cutting tool (K).

[0053] After bringing the styrene board (S) with a thickness dimension of 2 mm into contact with the stopper (110), a ruler (163) with a width dimension of 30 mm is placed on the styrene board (S), and when the ruler (163) is brought into contact with the stopper (110), the styrene board (S) comes into contact with one vertical wall portion (219) of the slide plate (112) located below the stopper (110), and the ruler (163) comes into contact with one vertical wall surface (116) of the main body (111) located above the stopper (110).

[0054] One vertical wall surface (116) of the upper main body (111) against which a scale (163) with a width dimension of 30 mm abuts is set (221) with an offset of 0.2 mm in the negative X-axis direction with respect to one vertical wall portion (219) of the lower slide plate (112) against which the styrene board (S) abuts. Therefore, the dimension (225) indicated by the scale (163) with respect to the styrene board (S) is 29.8 mm as a value obtained by subtracting 0.2 mm of the offset value (221) due to the step from the width dimension of 30 mm of the scale (163).

[0055] In this state, when the styrene board (S) is cut vertically with a blade (K) having a blade thickness (214) of 0.4 mm, 0.2 mm, which is half of the blade thickness (214), is added to the dimension (225) of 29.8 mm indicated by the scale (163) with a width dimension of 30 mm, and a cutting result with a dimension (226) of the desired 30 mm is obtained.

[0056] Note that the method of correcting the error caused by the blade thickness by the step provided on the abutting surfaces (219, 116) of the styrene board (S) and the scale (130) on the abutting surface of the stopper (110) described above is effective only when the thickness (222b) of the styrene board (S) is larger than the thickness (112b) of the lower slide plate (112). When the thickness (222b) of the styrene board (S) is smaller than the thickness (112b) of the slide plate (112), the scale (163) arranged on the styrene board (S) also abuts against one vertical wall portion (219) of the lower slide plate (112) similar to the styrene board (S). Therefore, the set offset value (221) does not work effectively and is not suitable as a method for dealing with the error caused by the blade thickness.

[0057] When the thickness (222b) of the styrene board (S) is smaller than the thickness (112b) of the slide plate (112), the first method or the second method shown above for obtaining the desired cutting result is effective.

[0058] Next, with reference to FIGS. 19 to 21, a procedure for adjusting the offset value (221) at the step formed by one vertical wall surface (116) in the main body (111) and one vertical wall portion (219) in the slide plate (112) of the stopper (110) using a ruler (130) will be described.

[0059] FIG. 19(a) shows the back direction of the stopper (110). As shown in FIGS. 19(a) and 19(b), the stopper (110) includes a slide plate (112) and a main body (111). The main body (111) includes a base (113) and a convex portion (114). The slide plate (112) is fixed to the bottom (115) of the base (113) by a bolt (124) inserted through a long hole (125) from the inclined portion (118) side of the main body (111) into an opened screw hole (123). The long hole (125) has an adjustment width of 1 mm for the fixed position in the width direction of the base (113), and the slide plate (112) is fixed so that its position can be changed by 1 mm in the width direction with respect to the main body.

[0060] As shown in FIGS. 20(a) and 20(b), the width dimension (122) of the base (113) at the bottom (115) excluding the convex portion (114) is 45 mm. Since the width dimension (112w) of the slide plate (112) is 35 mm, the difference (229) between the width dimension (122) of the base (113) at the bottom (115) excluding the convex portion (114) is 10 mm.

[0061] Therefore, when the distance (229) between the convex portion (114) and the slide plate (112) at the bottom (115) of the base portion (113) is 10 mm, the combined dimension of this dimension (229) and the width dimension (112w) of the slide plate (112), which is 35 mm, is 45 mm, and it becomes equal to the width dimension (122) other than the convex portion (114) at the bottom (115) of the base portion (113), which is 45 mm. Therefore, no step is formed between one vertical wall portion (219) of the slide plate (112) and one vertical wall surface (116) of the main body, and the two abutment surfaces (218) against which the styrene board (S) and the scale (130) abut are in the same plane.

[0062] Therefore, when a distance (229) of 10 mm or more is provided between the convex portion (114) and the slide plate (112), the combined dimension (229, 112w) of this dimension (229) and the width dimension (112w) of the slide plate (112), which is 35 mm, is 45 mm or more, and a portion exceeding 45 mm, which is the width dimension (122) other than the convex portion (114) at the bottom (115) of the base portion (113), is formed as a step between one vertical wall portion (219) of the slide plate (112) and one vertical wall surface (116) of the main body on the two abutment surfaces (218) against which the styrene board (S) and the scale (130) abut.

[0063] As an example, the adjustment procedure when a desired offset value of 0.2 mm is set for the step between one vertical wall portion (219) of the slide plate (112) and one vertical wall surface (116) of the main body on the two abutment surfaces (218) against which the styrene board (S) and the scale (130) abut will be described below with reference to FIGS. 21(a) and 21(b).

[0064] From among the comma-scale group (150), a scale (152) of 10.2 mm is placed at a location between the convex portion (114) and the slide plate (112) at the bottom (115) of the base portion (113). When the longitudinal sides (152a, 152b) of the 10.2-mm scale (152) are brought into contact with the convex portion (114) and the slide plate (112), the distance (230) between the convex portion (114) and the slide plate (112) becomes 10.2 mm, and the combined dimensions (230, 112w), where 112w is the width dimension of the slide plate (112), become 45.2 mm. The dimension (230, 112w) of the relevant portion that exceeds 45 mm, which is the width dimension (122) other than the convex portion (114) at the bottom (115) of the base portion (113), is 0.2 mm. At the two contact surfaces (218) where the styrene board (S) and the scale (130) are brought into contact, a step with an offset value (221) of 0.2 mm is formed between one vertical wall portion (219) of the slide plate (112) and one vertical wall surface (116) of the main body.

[0065] In the above state, the slide plate (112) is fixed by screwing a bolt (124) inserted through the long hole (125) formed in the main body (118) into the screw hole (123) of the slide plate (112), and a stopper (110) having a step of 0.2 mm is set at the two contact surfaces (218) where the styrene board (S) and the scale (130) are brought into contact.

[0066] In this way, at the two contact surfaces (218) where the styrene board (S) and the scale (130) are brought into contact, the step between one vertical wall portion (219) of the slide plate (112) and one vertical wall surface (116) of the main body can use the scale (130) for adjusting the offset value (221). Also, by using the comma-scale group (150) for the setting of the relevant portion, adjustment in 0.1-mm increments is possible.

[0067] In this embodiment, since the adjustment width of the fixed position is 1 mm due to the long hole (125) formed long in the width direction of the base portion (113), the offset value (221) of the step of this portion can be adjusted in the range of 0 mm to 1 mm.

[0068] Next, with reference to FIGS. 22 to 24, a coping method using a copy of the gauge (130) will be described with respect to the maximum and minimum dimensions obtained by the combination of the gauges (130).

[0069] One gauge (130) is provided for each set dimension. When a plurality of gauges (130) of the same dimension are required, or when a gauge (130) of the dimension obtained by combination is required alone, a copy of the desired gauge (130) can be produced from any material and can be made to conform to the desire.

[0070] First, a coping method using a copy of the gauge (130) with respect to the maximum dimension obtained by the combination of the gauges (130) will be described below based on FIG. 22.

[0071] Since the width dimension and the number of the gauges (130) are determined based on the standard, there is a maximum dimension for the dimension obtained by the combination of the gauges (130).

[0072] As an example of coping with the above case, by cutting out any material based on the gauge (170) with a width dimension of 100 mm and adding the copy of the gauge (170) with a width dimension of 100 mm thus created as a spacer (232a) to the combination of the gauges (130) for obtaining the desired dimension, an expansion of 100 mm can be achieved for the maximum dimension of the dimension obtained by the combination of the gauges (130).

[0073] As shown in Fig. 22, when a 100 mm scale (170) and a copy of the 100 mm wide scale (170) are added to the combination of scales (130) as a spacer (232a), for the styrene board (S) to be cut, a cutting dimension (233) of 200 mm can be obtained by the 100 mm scale (170) and the spacer (232a) which is a copy of the 100 mm wide scale (170).

[0074] In this way, by fabricating a copy of the scale (130) in any dimension as needed and adding it to the combination of scales (130) as a spacer (232a), the problem regarding the maximum limit of the desired dimension is solved.

[0075] Second, regarding the minimum limit of the dimension obtained by the combination of scales (130), the countermeasure method using a copy of the scale (130) will be described below based on Figs. 23 and 24.

[0076] The scale (130) with the smallest width dimension among the scales (130) is the 10 mm scale (161) belonging to the centimeter-scale group (160). Therefore, the dimension obtained only by the width of the scale (130) has a minimum limit of 10 mm.

[0077] Also, when both the tenth place and the units place are included in the desired dimension, one scale (130) is selected from each of the comma-scale group (150) and the millimeter-scale group (140), and the dimension is obtained by the combination including the selected scale (130). Among the comma-scale group (150), the scale (130) with the smallest width dimension set is the 10.1 mm scale (151), and among the millimeter-scale group (140), the scale (130) with the smallest width dimension set is the 11 mm scale (141). Therefore, the width dimension obtained by combining the scales (130) each selected from the comma-scale group (150) and the millimeter-scale group (140) has a minimum limit of 21.1 mm.

[0078] Based on FIG. 23, as an example of 20 mm or less, the case where a cutting dimension of 17.4 mm is desired will be described.

[0079] First, from the centimeter scale group (160), a 10 mm wide scale (161) is used to cut the styrene board (S) to be cut, and a 10 mm wide spacer (232b) made of the styrene board (S) is prepared.

[0080] Next, a 17 mm wide scale (147) is selected from the millimeter scale group (140), and a 10.4 mm wide scale (154) is selected from the comma scale group (150), and their long sides are made to abut. As a result, a scale (147, 154) with a width dimension of 27.4 mm (237) is set.

[0081] At this stage, four points are ready, namely, the styrene board (S) to be cut, the 10 mm wide spacer (232b) made of the styrene board (S), the scale (147, 154) with a width dimension of 27.4 mm (237) formed by the combination, and the stopper (110) added to these three points.

[0082] As shown in FIG. 23, by arranging a 10 mm wide spacer (232b) between the stopper (110) and the end face of the styrene board (S), a 10 mm gap (238) is provided between the stopper (110) and the end face of the styrene board (S).

[0083] With a 10 mm gap (238) provided by the spacer (232b) between the stopper (110) and the end face of the styrene board (S), the scale (147, 154) with a width dimension of 27.4 mm (237) is placed on the styrene board (S), and when the scale (147, 154) is abutted against the stopper (110), the 10 mm gap (238) provided by the spacer (232b) is subtracted from the 27.4 mm width dimension (237) obtained by the scale (147, 154), and the scale (147, 154) shows a dimension of 17.4 mm (239) with respect to the styrene board (S).

[0084] With the cutting tool following the corresponding ruler (147, 154) in the above state and cutting, a cutting result (239) of 17.4 mm can be obtained from the styrene board (S).

[0085] Next, based on FIG. 24, as an example of 10 mm or less, the case of desiring a cutting dimension of 8.2 mm will be described.

[0086] Following the above procedure, a spacer (232c) with a width of 20 mm, which is arranged between the stopper (110) and the end face of the styrene board (S) to be cut, combines a ruler (148) with a width dimension of 18 mm and a ruler (152) with a width dimension of 10.2 mm. From the dimension (242) of 28.2 mm shown by the combined rulers (148, 152), a 20 mm interval (243) is subtracted. With respect to the styrene board (S), the combined rulers (148, 152) show a dimension (244) of 8.2 mm. With the cutting tool following the corresponding ruler (148, 152) and cutting, a cutting result (244) of 8.2 mm can be obtained from the styrene board (S).

[0087] Regarding the maximum and minimum limits of the present instrument (100), as described above, a copy of the ruler created by cutting a desired material with an arbitrary ruler (130) is used as a spacer (232a, 232b, 232c), and it can be dealt with by using it as an aid to obtain a desired dimension.

[0088] Alternatively, regarding the minimum limit, a means of cutting the material to be cut in advance with an arbitrary-dimension ruler (130) and then cutting it with a ruler (130) having a value obtained by subtracting a desired dimension from that is also effective.

[0089] It can be said that there is no theoretical maximum limit for the dimensions that the present instrument (100) can handle by the means described above, and similarly, the theoretical minimum limit is 0.1 mm.

[0090] Note that, in this embodiment, the copy of the ruler (130) described above is intended to be used in combination with the ruler (130) as spacers (232a, 232b, 232c) for the purpose of assisting in obtaining desired dimensions. It is not intended to be used only as a copy or in a manner imitating a cutting tool instead of the ruler (130).

[0091] This instrument (100) has a plurality of rulers (130) with different width dimensions. In each ruler (130), a pair of longitudinal sides are set to be parallel and have a predetermined dimension value. Therefore, when the user seeks a desired dimension, the user only needs to select the target ruler (130) from the ruler groups (140, 150, 160, 170), without generating an error caused by visually reading the scale of the ruler, and without the need for manual position adjustment based on the read scale. Thus, the desired dimension can be accurately obtained.

[0092] In each ruler (130) of this instrument (100), the width dimension is set to a different value. The types necessary to obtain any dimension in increments of one tenth of a millimeter by combining the rulers (130) are provided in the ruler groups (140, 150, 160, 170). Therefore, the user can obtain any desired dimension in increments of one tenth of a millimeter by combining the rulers (130).

[0093] The ruler (130) with the desired width dimension set by combination can be used as a reference for an invariant dimension in the cutting operation. Therefore, when the user performs a plurality of cuts of the same dimension, the user only needs to cut based on the same ruler (130), without the need for the operation of visually reading the scale of the ruler and the manual position adjustment based on the read scale. Thus, a plurality of cutting operations of the same dimension can be accurately and efficiently performed.

[0094] This instrument (100) can eliminate the error (216) caused by the blade thickness (214) of the cutting tool (K) used for cutting due to the step provided on the first contact surface where the styrene board (S) contacts in the stopper (110) and the second contact surface where the ruler (130) contacts.

[0095] The offset value (221) at the step provided on the first contact surface where the styrene board (S) contacts the stopper (110) and the second contact surface where the scale (130) contacts can be adjusted to any value by changing the position of the slide plate (112) which is a component constituting the stopper (110).

[0096] For the operation of adjusting the offset value (221) at the step provided on the first contact surface where the styrene board (S) contacts and the second contact surface where the scale (130) contacts by changing the position of the slide plate (112) which is a component constituting the stopper (110), the scale (130) of this instrument (100) can be used, so that the value of any step can be accurately set.

[0097] Since the width dimension and the number of the scales (130) of this instrument (100) are determined based on the standards, there is a maximum limit to the dimensions obtained by the combination of the scales (130). However, by adding a copy of the scale (170) with a width dimension of 100 mm as a spacer (232a) to the combination, and by using a copy of any scale (130) as a spacer (232a), an expansion of 100 mm can be achieved to the maximum limit of the dimensions obtained by the combination of the scales (130). Thus, the problem regarding the maximum limit of the dimensions required by this instrument (100) is solved, and there is no theoretical maximum limit in the dimensions that this instrument (100) can handle.

[0098] The ruler (130) of the instrument (100) has a minimum width dimension set at 10 mm. Also, as long as it is a structure where multiple rulers (130) with a width dimension of 10 mm or more are combined to obtain a desired dimension, there is a minimum limit to the dimension obtained only by the width of the combined rulers (130). However, by using a copy of the ruler (161) with a width dimension of 10 mm or the ruler (162) with a width dimension of 20 mm as spacers (232b, 232c) and providing a gap between the styrofoam board (S) and the stopper (110), the problem regarding the minimum limit of the dimension obtained by the instrument (100) is solved, and in terms of the dimensions that the instrument (100) can handle, the theoretical minimum limit is 0.1 mm.

[0099] Although the instrument according to the embodiment of the present invention has been described, the instrument according to the present invention is not limited to the above embodiment, and may be one with the following modifications added.

[0100] The plurality of ruler groups (140, 150, 160, 170) of this embodiment include a millimeter-graduated ruler group (140), a comma-graduated ruler group (150), a one-centimeter-graduated ruler group (160), and a ten-centimeter ruler (170). However, depending on the implementation situation, the ruler (130) provided may be only the millimeter-graduated ruler group (140).

[0101] Or, depending on the implementation situation, the ruler (130) provided may be only the millimeter-graduated ruler group (140) and the comma-graduated ruler group (150).

[0102] Or, depending on the implementation situation, the ruler (130) provided may be only the millimeter-graduated ruler group (140) and the centimeter-graduated ruler group (160).

[0103] Or, depending on the implementation situation, the ruler (130) provided may be only the millimeter-graduated ruler group (140) and the ten-centimeter ruler (170).

[0104] The plurality of scale groups (140, 150, 160, 170) of the present embodiment include four types: a millimeter-scale group (140), a comma-scale group (150), a 1-centimeter-scale group (160), and a 10-centimeter scale (170). However, the types of the scale groups (140, 150, 160, 170) are not limited. For example, other types of scale groups such as a meter-scale group with a width dimension in meters may be provided.

[0105] The plurality of scale groups (140, 150, 160, 170) of the present embodiment include nine scales in the millimeter-scale group (140), nine scales in the comma-scale group (150), five scales in the 1-centimeter-scale group (160), and the 10-centimeter scale (170). However, the number of scales belonging to each scale group (140, 150, 160, 170) is not limited and may be more or less than that in the present embodiment.

[0106] As shown in FIGS. 2, 3, 4, and 5, the scale (130) of the embodiment of the present invention is formed with a length (141L, 151L, 161L, 171L) of 150 mm. However, the length (141L, 151L, 161L, 171L) of the scale (130) may be 150 mm or more.

[0107] Also, the length (141L, 151L, 161L, 171L) of the scale (130) may be 150 mm or less as long as it is a length used for cutting purposes.

[0108] The scale (130) of the embodiment of the present invention is formed with a thickness of 2 mm. However, the thickness of the scale (130) may be 2 mm or more as long as it is a thickness used for cutting purposes.

[0109] Also, the thickness of the scale (130) may be 2 mm or less as long as it is a thickness used for abutting the long sides against each other and for cutting purposes.

[0110] The dimensions of the instrument of the embodiment of the present invention are set based on the metric system. However, the dimension unit is not limited to the metric system and may be based on other units such as the yard-pound system.

[0111] As shown in FIGS. 2, 3, 4, and 5, in the ruler (130) of the embodiment of the present invention, the display portions (141D, 151D, 161D, 171D) of the width dimension are set at a total of four locations, two at each end on both the front and back surfaces of the ruler (130). However, the position and number of the display portions (141D, 151D, 161D, 171D) of the width dimension are not limited, and if it is not convenient, the ruler (130) may not be provided with the display portions (141D, 151D, 161D, 171D) of the width dimension.

[0112] The ruler (130) of the embodiment of the present invention is made of metal, but it does not have to be made of metal as long as it is a material sufficient for the use of cutting along the blade on the ruler (130).

[0113] The stopper (110) of the embodiment of the present invention is made of metal, but it does not have to be made of metal as long as it is a material sufficient for the use of abutting one end surface of the sheet-like material against the longitudinal side of the ruler (130).

[0114] As shown in FIG. 7, in the stopper (110) of the embodiment of the present invention, at the bottom (245, 246), a process intended for anti-slip, typified by knurling, is performed. However, the anti-slip means is not limited to anti-slip processing, and if it is not convenient, the anti-slip measures may not be provided.

[0115] As shown in FIG. 9, in the present embodiment, the width dimension (112w) of the slide plate (112) constituting the stopper (110) is 35 mm, and the adjustment width of the fixed position by the long hole (125) formed in the main body (111) is 1 mm. Therefore, the adjustable numerical width at the step between the first contact surface and the second contact surface is from 0 mm to 1 mm. However, the adjustment width provided in the long hole (125) is not limited to 1 mm, and the width dimension (112w) of the slide plate (112) is also not limited to 35 mm. Therefore, the adjustable numerical width of the said step is not limited to from 0 mm to 1 mm.

[0116] The above-described step provided on the stopper (110) of the present invention is not limited to the use of correcting the error (216) caused by the blade thickness (214) of the cutting tool (K) to be used, and may be used for setting other correction values regarding desired dimensions.

[0117] In the present embodiment, the slide plate (112) is a plate-like body, but the thickness of the end portion (112d) of the slide plate may be made thinner than the thickness of the slide plate base portion (112b). Further, as shown in FIG. 18, a recess may be provided on the upper side at the slide plate end portion (112d) to reduce the thickness of the end portion (112d). Thereby, even when the thickness (223b) of the styrene board (S) is thinner than the thickness of the slide plate base portion (112b), if the thickness (223b) of the portion is equal to or greater than the thickness (112c) of the end portion (112d) of the slide plate, the said square ruler (163) abuts on one vertical wall surface (116) of the main body (111) without abutting on one vertical wall portion (219) of the slide plate (112), and the offset value (221) set for the stopper (110) can function effectively.

[0118] When the user of the present instrument (100) does not require correction of the dimensional value due to the steps provided on the two abutting surfaces (219, 116) of the stopper (110), as shown in FIG. 9, the other vertical wall surface (117) standing from the other side portion of the convex portion (114) at the bottom portion (115) of the main body (111) of the stopper (110) may be used as the abutting surface between the square ruler (130) and the styrene board (S).

[0119] The main body (111) of the stopper (110) according to the embodiment of the present invention is provided with an inclined portion (118) from one vertical wall surface (116) to the upper surface portion (119), but the dimensions and angles of the portion are not limited. Further, in the operation of pressing and fixing the square ruler (130) and the styrene board (S) to be cut by hand from above in the cutting operation, if it is not convenient, the said inclined portion (118) may not be provided.

[0120] The instrument (100) of the embodiment of the present invention is typically used for cutting a styrene board (S) to a predetermined width in the production of architectural models. However, the instrument (100) according to this embodiment is not limited to cutting the styrene board (S). For example, it may also be used for cutting other sheet materials such as paper, cloth, film, cellophane sheet, cutting color sheet, wood, wood sheet, design sheet, wood grain sheet, rubber sheet, plastic plate, plastic cardboard, vinyl chloride plate, acrylic plate, polycarbonate plate, fluororesin sheet, polypropylene resin sheet, leather sheet, synthetic leather sheet, felt sheet, magnet sheet, sheet food, ceramic plate, pottery, carpet, masking tape, adhesive tape, etc.

[0121] The usage form of this instrument (100) is not limited to only this instrument (100), and other instruments may be used in combination.

[0122] The usage form of this instrument (100) is not limited to the combined use of the stopper (110) and the ruler (130), and each may be used alone.

[0123] The instrument (100) of the embodiment of the present invention may be used not only for cutting but also for drawing lines such as scribing work.

[0124] The instrument (100) of the embodiment of the present invention may be used for other purposes such as using the ruler (130) itself as a spacer when determining the interval or position between components in other instruments or other devices, etc., in addition to cutting and drawing lines.

Explanation of Reference Numerals

[0125] 100 … Instrument 110 … Stopper 111 … Stopper - body 112 … Stopper - slide plate 115 … Bottom of the stopper - body 130 … Ruler 140 … Millimeter - graduated ruler group 150 … comma-scale ruler group 160 … centimeter-scale ruler group 219 … one vertical wall portion having the role of the first abutting surface 116 … one vertical wall surface having the role of the second abutting surface

Claims

1. A stopper having a first contact surface against which a straight end formed on the side of the sheet body abuts; A plurality of types of rulers formed in strip shapes with different width dimensions; Comprising; The plurality of types of rulers include a first unit pitch ruler group having a plurality of rulers formed with a width dimension in a first unit pitch; The stopper has a second contact surface against which the ruler arranged on the sheet body abuts; The first contact surface is provided so as to protrude from the second contact surface. An instrument characterized by this.

2. The instrument according to claim 1, characterized in that the plurality of types of rulers include a second unit pitch ruler group having a plurality of rulers formed with a width dimension in a second unit pitch shorter than the first unit.

3. The instrument according to claim 1 or claim 2, characterized in that the plurality of types of rulers include a third unit pitch ruler group having a plurality of rulers formed with a width dimension in a third unit pitch longer than the first unit.

4. The stopper is; A main body on which the second contact surface is formed; A plate provided on the bottom surface of the main body, on which the first contact surface is formed; Comprising; The instrument according to claim 1, wherein the plate is provided such that the protruding width of the first contact surface is adjustable.

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