Equipment

Abstract

The present invention provides a device that allows for accurate and easy cutting of sheet materials using a utility knife or similar tool, to the desired dimensions, with high reproducibility. [Solution] This device (100) is equipped with multiple rulers (130) and stoppers (110), each with a different width dimension. The user does not need to visually read the markings on a ruler or manually adjust the cutting position; they can obtain the desired dimension simply by selecting a ruler (130) from the group of rulers (140, 150, 160, 170), thus enabling accurate and easy cutting of the sheet material. Since the ruler (130) can serve as an unchanging standard for the desired dimension, cutting to the same dimension can be done efficiently. By adjusting the difference in height between the contact surface (219) of the sheet material and the contact surface (220) of the ruler, which is provided on the contact surface (218) of the stopper (110), an arbitrary correction value can be set for the cutting dimension of the sheet material.

Description

Technical Field

[0006] , ,

[0005] , , , ,

[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

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, differences are likely to occur in the dimensions of the cut material with respect to the desired dimensions, and it is also difficult to ensure accurate parallelism. Note that 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 to provide an instrument that does not require visually reading the scale of a ruler, has high work reproducibility, easy work processes, and can improve the accuracy, reproducibility, and efficiency of cutting work.​ [Means for solving the problem]

[0007] The device, which is an invention for achieving the above objective, is described below.

[0008] The present invention comprises a stopper having a first contact surface against which a straight end formed on the side of a sheet body is contacted, and a plurality of types of rulers formed in a strip shape with different width dimensions, wherein the plurality of types of rulers include a group of millimeter-marked rulers having a plurality of rulers formed in millimeter increments in width.

[0009] Furthermore, in the apparatus of the present invention, the plurality of types of rulers are characterized in that the plurality of rulers have width dimensions formed in comma units, and the group of comma-marked rulers is also characterized in that the plurality of rulers have width dimensions formed in comma units.

[0010] Furthermore, in the apparatus of the present invention, the plurality of types of rulers is characterized in that it includes a group of rulers with widths formed in 10 mm increments.

[0011] Furthermore, in the device of the present invention, the stopper has a second contact surface against which a ruler placed on the sheet body is made contact, and the first contact surface is provided so as to protrude from the second contact surface.

[0012] Furthermore, in the device of the present invention, the stopper comprises a main body on which the second contact surface is formed, and a plate on which the first contact surface is formed and provided on the bottom surface of the main body, wherein the plate is provided so as to be adjustable in terms of the protrusion width of the first contact surface. [Effects of the Invention]

[0013] Unlike cutting operations based on ruler markings, this method eliminates the need for visual reading of markings and manual adjustment of the cutting position. As a result, materials can be cut accurately and easily to the desired dimensions while ensuring parallelism. Furthermore, it facilitates the easy execution of multiple cuts of the same dimensions.

Brief Description of the Drawings

[0014] [Figure 1] It is a plan view showing the whole apparatus. [Figure 2] It is a plan view showing the millimeter scale group. [Figure 3] It is a plan view showing the comma scale group. [Figure 4] It is a plan view showing the centimeter scale group. [Figure 5] It is a plan view showing the 10 - centimeter scale. [Figure 6] It is a perspective view showing the stopper from above. [Figure 7] It is a perspective view showing the stopper from below. [Figure 8] It is a plan view of the stopper. [Figure 9] It is a sectional view taken along the line A - A in FIG. 8. [Figure 10] It is a figure showing (a) an example of combination of 13 - mm scales, (b) an example of combination of 26 - mm scales, (c) an example of combination of 81 - mm scales, (d) an example of combination of 177 - mm scales. [Figure 11] It is a figure showing (a) an example of combination of 22.8 - mm scales, (b) an example of combination of 58.4 - mm scales, (c) an example of combination of 77.7 - mm scales, (d) an example of combination of 183.8 - mm scales. [Figure 12] It is a plan view showing a state where (a) a scale and a rectangular - block - shaped stopper are used, and the scale shows a dimension width of 30 mm on a styrene board. (b) It is a figure showing a state where the styrene board is cut with a dimension width of 30 mm using a scale and a rectangular - block - shaped stopper in the sectional view taken along the line G - G. [Figure 13] It is an enlarged view of the V part shown in FIG. 12(b). [Figure 14] It is a sectional view taken along the line B - B in FIG. 8. [Figure 15] It is an enlarged view of the first contact surface and the second contact surface shown in FIG. 14. [Figure 16](a) A plan view showing a state where a ruler and a stopper are used and the ruler indicates a dimension width of 30 mm on a styrene board. (b) A cross-sectional view taken along the line H-H in FIG. 23. [Figure 17] An enlarged view of the U portion shown in FIG. 16. [Figure 18] A view showing the state and effect when a partial change is made to the thickness of the slide plate based on FIG. 17. [Figure 19] (a) A bottom view of the stopper. (b) A cross-sectional view taken along the line I-I in FIG. 19. [Figure 20] (a) An enlarged view of the Z portion shown in FIG. 19. (b) A cross-sectional view taken along the line J-J in FIG. 20. [Figure 21] A view showing the state of adjusting the position of the slide plate using a ruler based on FIG. 20(a). (b) A cross-sectional view taken along the line N-N in FIG. 21 [Figure 22] A plan view showing an embodiment using a spacer with a width dimension of 100 mm and a ruler of 100 mm. [Figure 23] A plan view showing an embodiment using a spacer with a width dimension of 10 mm and a ruler of 27.4 mm. [Figure 24] A plan view showing an embodiment using a spacer with a width dimension of 20 mm and a ruler of 28.2 mm.

Mode for Carrying Out the Invention

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

[0016] As shown in Figure 1, the device (100) of this embodiment comprises several types of rulers (130) and a stopper (110). Each of the rulers (130) is placed on the styrene board (S) to be cut and used in conjunction with the stopper (110).

[0017] The multiple types of rulers (130) in this embodiment include multiple ruler groups (140, 150, 160, 170). Each of the ruler groups (140, 150, 160, 170) is a collection of rulers (130) manufactured according to a predetermined standard, and the multiple ruler groups (140, 150, 160, 170) in this embodiment include a millimeter-marked ruler group (140), a comma-marked ruler group (150), a centimeter-marked ruler group (160), and a 10-centimeter ruler (170).

[0018] As shown in Figure 2, the millimeter-marked ruler group (140) is a set of nine rulers (141, 142, 143, 144, 145, 146, 147, 148, 149) with widths in 1 mm increments. Specifically, it is a ruler (130) formed to have widths of 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-marked rulers (141, 142, 143, 144, 145, 146, 147, 148, 149) has a different width, but the other components are the same. Therefore, the following explanation will focus on the ruler with a width of 11 mm (141). The 11 mm ruler (141) is a metal plate formed in the shape of a strip, with a length (141L) of 150 mm, a width (141W) of 11 mm, and a thickness of 2 mm. The 11 mm ruler (141) is extended linearly with a uniform width, so a pair of long sides (141a, 141b) are provided parallel to each other. The width dimension is displayed on the display section (141D). There are a total of four display sections (141D) on both the front and back ends of the ruler (130).

[0019] As shown in Figure 3, the comma-marked ruler group (150) is a set of nine rulers (151, 152, 153, 154, 155, 156, 157, 158, 159) with widths in 0.1 mm increments. Specifically, it is a ruler (130) formed to have widths of 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-marked rulers (151, 152, 153, 154, 155, 156, 157, 158, 159) has a different width, but the other components are the same. Therefore, the following explanation will focus on the ruler with a width of 10.1 mm (151). The 10.1 mm ruler (151) is a metal plate formed in the shape of a strip, with a length (151L) of 150 mm, a width (151W) of 10.1 mm, and a thickness of 2 mm. The 10.1 mm ruler (151) is extended linearly with a uniform width, so a pair of long sides (151a, 151b) are provided parallel to each other. The width dimension is displayed on the display section (151D). There are a total of four display sections (151D) on both the front and back ends of the ruler (130).

[0020] As shown in Figure 4, the centimeter-marked ruler group (160) is a set of five rulers (161, 162, 163, 164, 165) with widths in 10 mm increments. Specifically, it is a ruler (130) formed to have widths of 10 mm (161W), 20 mm (162W), 30 mm (163W), 40 mm (164W), and 50 mm (165W). Each of the centimeter-marked rulers (161, 162, 163, 164, 165) has a different width, but the other components are the same. Therefore, the following explanation will focus on the ruler with a width of 10 mm (161). The 10 mm ruler (161) is a metal plate formed in a rectangular shape, with a length (161L) of 150 mm, a width (161W) of 10 mm, and a thickness of 2 mm. The 10 mm ruler (161) is extended linearly with a uniform width, so a pair of long sides (161a, 161b) are provided parallel to each other. The width dimension is displayed on the display section (161D). There are a total of four display sections (161D) on both the front and back ends of the ruler (130).

[0021] As shown in Figure 5, the 10 cm ruler (170) is a ruler (130) formed to have a width dimension (170W) of 100 mm. The 10 cm ruler (170) is a metal plate formed in the shape of a strip, with a length (170L) of 150 mm, a width (170W) of 100 mm, and a thickness of 2 mm. Since the 10 cm ruler (170) is extended linearly with a uniform width dimension, a pair of long sides (170a, 170b) are provided parallel to each other. The width dimension is displayed on the display section (170D). There are a total of four display sections (170D) set on both the front and back ends of the ruler (130), two on each end.

[0022] Next, the stopper (110) will be described with reference to Figures 6 to 9. The stopper (110) is in contact with one end face of the styrene board (S) and the long side of the ruler (130). The stopper (110) is made of metal. As shown in Figures 6 and 7, the stopper (110) comprises a main body (111) and a slide plate (112). The main body (111) comprises a base (113) and a protrusion (114). The bottom (245) of the protrusion (114) and the bottom (246) of the slide plate (112) are treated with a non-slip finish, such as knurling.

[0023] As shown in Figure 8, the base (113) extends horizontally (126) so that the end face of the styrene board (S) can come into contact with it. As shown in Figure 9, specifically, the base (113) is formed such that its cross-section perpendicular to the horizontal direction (126) (vertical cross-section) is trapezoidal, and comprises a bottom (115), a vertical wall surface (116) which serves as a second contact surface, another vertical wall surface (117), an inclined portion (118), and an upper surface (119). The bottom (115) is formed in a rectangular shape when viewed from the bottom. One vertical wall surface (116) is erected from one side of the bottom (115). Another vertical wall surface (117) is erected from the other side of the bottom (115). The other vertical wall surface (117) is set higher than the first vertical wall surface (116), and the inclined portion (118) and the upper surface (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] At the bottom (115) of the base (113) described above, a protrusion (114) is provided on the other side. As shown in Figure 9, the protrusion (114) is a portion that protrudes vertically downward from the bottom (115) with a uniform thickness, and as shown in Figure 8, it is formed along the longitudinal direction (126) of the base (113). As shown in Figure 8, the longitudinal dimension (113L) of the base (113) and the protrusion (114) is 200 mm. As shown in Figure 9, the width dimension (115w) of the bottom (115) is 60 mm. The width dimension (114w) of the protrusion (114) is 15 mm. Therefore, the width dimension (122) of the bottom other than the protrusion (114) is 45 mm. The height dimension (114b) of the protrusion (114) is 1.8 mm. Although the dimensions are as described above in this embodiment, the present invention is not limited to these dimensions.

[0025] As shown in Figure 8, the slide plate (112) is a plate-like body extending in the longitudinal direction (126) of the base (113), and as shown in Figure 9, it is positioned on one side (116) of the bottom (115) of the base (113) of the main body (111). The slide plate (112) has screw holes (123) and is fixed to the main body (111) by bolts (124) inserted from the inclined portion (118) side of the main body. In this fixed state, the end face of the slide plate (112) located below one vertical wall surface (116) of the main body (111) functions as the first contact surface. As shown in Figure 8, the length dimension (112L) of the slide plate (112) is 202 mm. As shown in Figure 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. Although the dimensions are as described above in this embodiment, the present invention is not limited to these dimensions.

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

[0027] The usage of the above-mentioned device (100) will be explained.

[0028] First, referring to Figures 10 and 11, we will explain how to obtain the desired dimensions using a ruler (130). From a group of rulers with different widths (140, 150, 160, 170), multiple rulers (130) are selected in a combination that yields the desired width. By bringing the long sides of these rulers (130) together, a ruler (130) with the desired width can be obtained. In this case, if the desired dimension can be obtained with a single ruler (130), only one ruler (130) may be selected.

[0029] For example, if the desired width dimensions of the ruler (130) are 13mm, 26mm, 81mm, and 177mm, and further, if the desired width dimensions of the ruler (130) include a tenth, such as 22.8mm, 58.4mm, 77.7mm, and 183.8mm, the combinations of the ruler (130) will be explained below based on Figures 10 and 11.

[0030] <Ruler with a width of 13mm (130)> As shown in Figure 10(a), if you want a ruler (130) with a width dimension (301) of 13 mm, select the 13 mm ruler (143) from the group of rulers with millimeter markings (140).

[0031] <Ruler with a width of 26mm (130)> As shown in Figure 10(b), if you want a ruler (130) with a width dimension (302) of 26 mm, select a 16 mm ruler (146) from the millimeter-marked ruler group (140) and a 10 mm ruler (161) from the centimeter-marked ruler group (160), and bring the long sides of each ruler (146, 161) into contact with each other.

[0032] <Ruler with a width of 81mm (130)> As shown in Figure 10(c), if you want a ruler (130) with a width dimension (303) of 81 mm, select an 11 mm ruler (141) from the millimeter-marked ruler group (140), a 20 mm ruler (162) and a 50 mm ruler (165) from the centimeter-marked ruler group (160), and bring the long sides of each ruler (141, 162, 165) into contact with each other.

[0033] <Ruler with a width of 177mm (130)> As shown in Figure 10(d), if you want a ruler (130) with a width dimension (304) of 177 mm, select a 17 mm ruler (147) from the millimeter-marked ruler group (140), and a 10 mm ruler (161), a 50 mm ruler (165), and a 10 cm ruler (170) from the centimeter-marked ruler group (160), and bring the long sides of each ruler (147, 161, 165, 170) into contact with each other.

[0034] <Ruler with a width of 22.8mm (130)> As shown in Figure 11(a), if you want a ruler (130) with a width dimension (305) of 22.8 mm, select a 10.8 mm ruler (158) from the comma-marked ruler group (150) and a 12 mm ruler (142) from the millimeter-marked ruler group (140), and bring the long sides of each ruler (158, 142) into contact with each other.

[0035] <Ruler with a width of 58.4mm (130)> As shown in Figure 11(b), if you want a ruler (130) with a width dimension (306) of 58.4 mm, select a 10.4 mm ruler (154) from the comma-marked ruler group (150), an 18 mm ruler (148) from the millimeter-marked ruler group (140), and a 30 mm ruler (163) from the centimeter-marked ruler group (160), and then bring the long sides of each ruler (154, 148, 163) into contact with each other.

[0036] <Ruler with a width of 77.7mm (130)> As shown in Figure 11(c), if you want a ruler (130) with a width dimension (307) of 77.7 mm, select a 10.7 mm ruler (157) from the comma-marked ruler group (150), a 17 mm ruler (147) from the millimeter-marked ruler group (140), and a 50 mm ruler (165) from the centimeter-marked ruler group (160), and then bring the long sides of each ruler (157, 147, 165) into contact with each other.

[0037] <Ruler with a width of 183.8mm (130)> As shown in Figure 11(d), if you want a ruler (130) with a width dimension (308) of 183.8 mm, select a 10.8 mm ruler (158) from the comma-marked ruler group (150), a 13 mm ruler (143) from the millimeter-marked ruler group (140), and a 10 mm ruler (161), a 50 mm ruler (165), and a 10 cm ruler (170) from the centimeter-marked ruler group (160), and place the long sides of each ruler (158, 143, 161, 165, 170) together.

[0038] By aligning the long side of the ruler (130) with the desired dimensions obtained by the above procedure with the straight end formed on the side of the styrene board (S) to be cut, the ruler (130) can indicate the desired dimensions with respect to the styrene board (S) by the width of the ruler (130).

[0039] Next, with reference to Figures 12 to 18, we will explain how to deal with errors (216) caused by the blade thickness (214) of the cutting tool (K) used. For example, when using a stopper (211) (Figures 12 and 13) in which the first contact surface and the second contact surface are formed on the same plane, the following errors (216) occur.

[0040] As shown in Figure 12(a), as an example, the long side of a ruler (163) with a width of 30 mm is aligned with the straight end formed on the side of a styrene board (S) with a thickness of 2 mm. The styrene board (S) and the ruler (163) are then brought into contact with the vertical wall surface (215) of a rectangular block (211), and the cutting is performed with a blade (K) with a blade thickness (214) of 0.4 mm, as shown in Figure 12(b).

[0041] This block (211) has a long side dimension (211a) of 200 mm, a short side dimension (211b) of 30 mm, and a vertical wall height dimension (211c) of 15 mm.

[0042] As shown in Figure 12(b), after the styrene board (S) is brought into contact with the vertical wall surface (215) of the block (211), a ruler (163) with a width 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), a cutting tool (K) with a blade thickness (214) of 0.4 mm is used to cut along the ruler (163), as shown in Figure 13. Since the tip of the cutting tool (K) is located in the center of the blade thickness (214), an error (216) of 0.2 mm, which is half the blade thickness (214), is added to the width of the ruler (163), which is 30 mm, resulting in a dimension (217) of the cut material of 30.2 mm.

[0043] There are three ways to address the above errors and obtain cutting results of the desired dimensions.

[0044] The first method is to select a ruler (130) with a value obtained by subtracting the error that will occur from the desired dimension. In the example above, if you want to cut a 30mm length with a blade (K) with a blade thickness (214) of 0.4mm, you can use a 29.8mm ruler (158, 149) which is 0.2mm less than the error, and the additional 0.2mm error (216) will be offset. Specifically, by cutting with a 29.8mm ruler (158, 149) formed by combining a 10.8mm wide ruler (158) from the comma-marked ruler group (150) and a 19mm wide ruler (149) from the millimeter-marked ruler group (140), the 0.2mm error (216) added due to the blade thickness (214) is offset by the negative value of 0.2mm due to the 29.8mm width of the ruler (158, 149) relative to the desired dimension of 30mm, resulting in a cut of 30mm.

[0045] The second method involves first cutting the styrene board (S) to be cut using a ruler (130) of any desired size, and then selecting a ruler (130) with a value obtained by subtracting the desired size from that cut to perform the final cut. If you want a 30mm cutting dimension as in the example above, one example is to first cut the styrene board (S) using the 50mm wide ruler (165) from the centimeter-marked ruler group (160) to obtain a styrene board (S) with dimensions of 50.2mm. Then, cut this styrene board (S) with the 20mm wide ruler (162) from the centimeter-marked ruler group (160). Subtracting the 20.2mm cutting width from 50.2mm, you can obtain a 30mm cutting result.

[0046] The third method involves offsetting the contact surface of the styrene board (S) and the contact surface of the ruler (130) by creating a step difference as a protrusion on the first contact surface where the styrene board (S) makes contact and the second contact surface where the ruler (130) makes contact, which are located on the side of the stopper (110), thereby correcting errors caused by the blade thickness (214). Next, the details will be explained below based on Figures 14, 15, 16, 17, and 18.

[0047] As shown in Figures 14 and 15, the stopper (110) is formed by combining the main body (111) and the slide plate (112), resulting in a stepped structure with protrusions on one vertical wall (219) of the lower slide plate (112), which serves as the first contact surface against which the styrene board (S) comes into contact, and on one vertical wall (116) of the upper main body (111), which serves as the second contact surface against which the ruler (130) comes into contact.

[0048] As shown in Figures 16(a) and 16(b), after a styrene board (S) with a thickness of 2 mm is brought into contact with the stopper (110), a ruler (163) with a width of 30 mm is placed on the styrene board (S) as in the example above, and the ruler (163) is brought into contact with the stopper (110). At this point, the styrene board (S) comes into contact with one vertical wall portion (219) of the slide plate (112) located at the bottom of the stopper (110), and the ruler (163) comes into contact with one vertical wall surface (116) of the main body (111) located at the top of the stopper (110).

[0049] As shown in Figure 17, one vertical wall surface (116) of the upper body (111) to which a ruler (163) with a width of 30 mm abuts is offset in the negative X-axis direction relative to one vertical wall portion (219) of the lower slide plate (112) to which the styrene board (S) abuts, and a step is formed between the two contact surfaces (219, 116). As a result, after the styrene board (S) is brought into contact with the stopper (110), a ruler (163) with a width of 30 mm is placed on the styrene board (S), and the ruler (163) is brought into contact with the stopper (110), the 30 mm wide ruler (163) will show a value (225) obtained by subtracting the offset value (221) due to the step from the dimensions of the ruler (163).

[0050] In this case, if the offset value of the step (221) is set to half the blade thickness (214) of the cutting tool (K) used for cutting, then 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). As a result, a cutting result (226) equal to the width dimension of the ruler (163) selected as the desired dimension can be obtained.

[0051] As an example, the case of using a stopper (110) to cut a styrene board (S) with a thickness of 2 mm to a desired dimension of 30 mm using a blade (K) with a blade thickness of 0.4 mm (214) will be explained below based on Figure 17.

[0052] First, at 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 blade thickness (214) of the cutting tool (K).

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

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

[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 the blade thickness (214) (216), is added to the dimension (225) of 29.8 mm indicated by the ruler (163) with a width of 30 mm, resulting in a cut with the desired dimension of 30 mm (226).

[0056] Furthermore, the method described above, which corrects errors caused by blade thickness by using the step difference provided between the contact surfaces (219, 116) of the styrene board (S) and the ruler (130) at the contact surface of the stopper (110), is only effective when the thickness (222b) of the styrene board (S) is greater than the thickness (112b) of the lower slide plate (112). When the thickness (222b) of the styrene board (S) is less than the thickness (112b) of the slide plate (112), the ruler (163) placed on the styrene board (S) also contacts one of the vertical walls (219) of the lower slide plate (112) in the same way as the styrene board (S), so the set offset value (221) does not work effectively and is not suitable as a method to deal with errors caused by blade thickness.

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

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

[0059] Figure 19(a) shows the back side of the stopper (110). As shown in Figures 19(a) and 19(b), the stopper (110) comprises a slide plate (112) and a main body (111), the main body (111) comprising a base (113) and a protrusion (114). The slide plate (112) is fixed to the bottom (115) of the base (113) by a bolt (124) inserted through an elongated hole (125) from the inclined portion (118) side of the main body (111) into a screw hole (123). The elongated hole (125) has a fixing position adjustment range of 1 mm 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 relative to the main body.

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

[0061] Therefore, when the distance (229) between the protrusion (114) and the slide plate (112) at the bottom (115) of the base (113) is 10 mm, the sum of this dimension (229) and the width dimension (112w) of the slide plate (112) which is 35 mm is 45 mm, which is equal to the width dimension (122) of the bottom (115) of the base (113) other than the protrusion (114), which is 45 mm. As a result, 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 contact surfaces (218) to which the styrene board (S) and the ruler (130) come into contact are on the same plane.

[0062] Therefore, if a gap (229) of 10 mm or more is provided between the protrusion (114) and the slide plate (112), the combined dimension (229, 112w) of the slide plate (112) and the width dimension (112w) of the slide plate (112) of 35 mm will be 45 mm or more. The portion of the base (113) bottom (115) that exceeds the width dimension (122) of 45 mm other than the protrusion (114) will be 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 at the two contact surfaces (218) where the styrene board (S) and the ruler (130) come into contact.

[0063] As an example, the adjustment procedure for when an offset value of 0.2 mm is desired for the step difference between one vertical wall portion (219) of the slide plate (112) and one vertical wall portion (116) of the main body at two contact surfaces (218) where the styrene board (S) and ruler (130) come into contact is described below with reference to Figures 21(a) and 21(b).

[0064] From the comma-marked ruler group (150), a 10.2 mm ruler (152) is placed at the bottom (115) of the base (113) in the area between the convex part (114) and the slide plate (112). When the long sides (152a, 152b) of the 10.2 mm ruler (152) are brought into contact with the convex part (114) and the slide plate (112), the distance (230) between the convex part (114) and the slide plate (112) becomes 10.2 mm. When combined with the width dimension (112w) of the slide plate (112) which is 35 mm, the combined dimension (230, 112w) becomes 45.2 mm. The dimensions of the part in question (230, 112w) are such that the dimensions of the part exceeding 45 mm, which is the width dimension (122) of the bottom (115) of the base (113) excluding the protrusion (114), are 0.2 mm. At the two contact surfaces (218) where the styrene board (S) and the ruler (130) come 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 an elongated hole (125) made in the main body (118) into a screw hole (123) in the slide plate (112), and a stopper (110) with a step of 0.2 mm is set on the two contact surfaces (218) that come into contact with the styrene board (S) and the ruler (130).

[0066] Thus, at the two contact surfaces (218) where the styrene board (S) and the ruler (130) come into contact, the difference in height between one vertical wall portion (219) of the slide plate (112) and one vertical wall surface (116) of the main body allows the ruler (130) to be used to adjust the offset value (221). Furthermore, by using the comma-marked ruler set (150) for setting this section, adjustments can be made in 0.1 mm increments.

[0067] In this embodiment, the adjustment range for the fixed position is 1 mm due to the elongated hole (125) formed in the width direction of the base (113), so the offset value (221) of the step in that part can be adjusted within a range of 0 mm to 1 mm.

[0068] Next, referring to Figures 22 to 24, we will explain how to handle the maximum and minimum dimensions obtained by combining the ruler (130) using copies of the ruler (130).

[0069] One ruler (130) is provided for each set dimension. If multiple rulers (130) of the same dimension are required, or if a single ruler (130) of a dimension determined by a combination is required, a copy of the desired ruler (130) can be made from any material and provided as needed.

[0070] Firstly, regarding the maximum dimensions obtainable by combining rulers (130), a method for dealing with this using copies of rulers (130) will be explained below, based on Figure 22.

[0071] Since the width and number of pieces of a ruler (130) are determined according to standards, there is a maximum limit to the dimensions that can be obtained by combining rulers (130).

[0072] As an example of how to address the above situation, one can cut out any material based on a ruler (170) with a width of 100 mm, and then add a copy of the resulting 100 mm wide ruler (170) as a spacer (232a) to a combination of rulers (130) that determine the desired dimensions. This allows for an expansion of 100 mm to the maximum dimension that can be determined by the combination of rulers (130).

[0073] As shown in Figure 22, by adding a 100mm ruler (170) and a copy of the 100mm wide ruler (170) as a spacer (232a) to the ruler (130), a cutting dimension (233) of 200mm can be determined for the styrene board (S) to be cut using the 100mm ruler (170) and the spacer (232a) made from the copy of the 100mm wide ruler (170).

[0074] In this way, by creating copies of the ruler (130) to any desired dimensions as needed and adding them to the combination of rulers (130) as spacers (232a), the problem regarding the maximum limit of the desired dimensions is resolved.

[0075] Secondly, regarding the minimum dimensions obtainable by the combination of rulers (130), a method of dealing with this using copies of rulers (130) will be explained below based on Figures 23 and 24.

[0076] Among the rulers (130), the ruler (130) with the smallest width dimension is the ruler (161) with a width dimension of 10 mm, which belongs to the centimeter-marked ruler group (160). Therefore, the minimum dimension that can be determined solely by the width of ruler (130) is 10 mm.

[0077] Furthermore, if the desired dimension includes both a tenth and a ones digit, one ruler (130) is selected from each of the comma-marked ruler group (150) and the millimeter-marked ruler group (140). The dimension is then determined by combining these rulers (130). In the comma-marked ruler group (150), the ruler (130) with the smallest width dimension is the ruler (151) with a width of 10.1 mm, and in the millimeter-marked ruler group (140), the ruler (130) with the smallest width dimension is the ruler (141) with a width of 11 mm. Therefore, the minimum width dimension obtained by combining one ruler (130) selected from each of the comma-marked ruler group (150) and the millimeter-marked ruler group (140) is 21.1 mm.

[0078] Based on Figure 23, we will explain an example of a desired cutting dimension of 17.4 mm, which is less than 20 mm.

[0079] First, using a ruler (161) with a width of 10 mm from the centimeter-marked ruler group (160), the styrene board (S) to be cut is cut, and a spacer (232b) with a width of 10 mm is prepared from the styrene board (S).

[0080] Next, select a ruler with a width of 17 mm (147) from the millimeter-marked ruler group (140) and a ruler with a width of 10.4 mm (154) from the comma-marked ruler group (150), and bring their long sides together. This sets up a ruler (147, 154) with a width of 27.4 mm (237).

[0081] At this stage, four items are prepared: the styrene board to be cut (S), a 10mm wide spacer (232b) made from the styrene board (S), and a ruler (147, 154) that, when combined, has a width dimension of 27.4mm (237), plus a stopper (110).

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

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

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

[0085] Next, based on Figure 24, we will explain an example of a cut dimension of 8.2 mm, as an example of a dimension of 10 mm or less.

[0086] Following the procedure described above, a 20mm wide spacer (232c) is placed between the stopper (110) and the end face of the styrene board (S) to be cut. As a result, a 20mm gap (243) is subtracted from the 28.2mm dimension (242) indicated by the combined ruler (148, 152) consisting of an 18mm wide ruler (148) and a 10.2mm wide ruler (152). This results in the ruler (148, 152) indicating a dimension (244) of 8.2mm relative to the styrene board (S). By following the ruler (148, 152) with a cutting tool and cutting, a cutting result (244) of 8.2mm can be obtained from the styrene board (S).

[0087] The maximum and minimum dimensions of this device (100) can be addressed by using a copy of the ruler (130), created by cutting the desired material with any ruler, as a spacer (232a, 232b, 232c) to assist in determining the desired dimensions, as described above.

[0088] Alternatively, for minimal cuts, it is also effective to pre-cut the material to be cut using a ruler (130) of any desired size, and then cut it using a ruler (130) of the same size as the desired size.

[0089] As described above, there is no theoretical maximum limit to the dimensions that this device (100) can accommodate, and similarly, the theoretical minimum limit is 0.1 mm.

[0090] Furthermore, the copy of the ruler (130) described above is intended to be used in conjunction with the ruler (130) as a spacer (232a, 232b, 232c) to assist in obtaining the desired dimensions. It is not intended to be used alone as a substitute for the ruler (130), nor is it intended to be used to trace a cutting tool.

[0091] This device (100) has multiple rulers (130) of different widths, and each ruler (130) has a pair of parallel, predetermined dimension values ​​set on its long sides. Therefore, when a user wants to obtain a desired dimension, they only need to select the desired ruler (130) from the group of rulers (140, 150, 160, 170), and since there is no error caused by visually reading the markings on a ruler, and no manual position adjustment based on the read markings is required, the desired dimension can be obtained accurately.

[0092] This device (100) has different width dimensions set for each ruler (130), and the ruler group (140, 150, 160, 170) is equipped with the necessary types to obtain any dimension in 1 / 10th of a millimeter increments by combining the rulers (130). Therefore, the user can obtain any desired dimension in 1 / 10th of a millimeter increments by combining the rulers (130).

[0093] A ruler (130) with a desired width dimension set by combination can serve as an unchanging dimensional reference during cutting. Therefore, when a user performs multiple cuts of the same dimension, they only need to cut based on the same ruler (130), eliminating the need to visually read the markings on a ruler or to manually adjust the position based on the read markings. This allows for accurate and efficient execution of multiple cuts of the same dimension.

[0094] This device (100) eliminates errors (216) caused by the blade thickness (214) of the cutting tool (K) used for cutting, due to the steps provided on the first contact surface of the stopper (110) that the styrene board (S) contacts and the second contact surface that the ruler (130) contacts.

[0095] The offset value (221) in the step between the first contact surface of the stopper (110) that the styrene board (S) contacts and the second contact surface that the ruler (130) contacts can be adjusted to any value by changing the position of the slide plate (112), which is a component of the stopper (110).

[0096] The ruler (130) of this device (100) can be used to adjust the offset value (221) in the step between the first contact surface to which the styrene board (S) contacts and the second contact surface to which the ruler (130) contacts, by changing the position of the slide plate (112), which is a component of the stopper (110). Therefore, any desired step value can be accurately set.

[0097] The ruler (130) of this device (100) has a width dimension and number determined according to standards, so there is a maximum limit to the dimensions that can be obtained by combining rulers (130). However, by adding a copy of a ruler (170) with a width dimension of 100 mm as a spacer (232a) to the combination, the maximum dimension that can be obtained by combining rulers (130) can be expanded by 100 mm. By using a copy of any ruler (130) as a spacer (232a), the problem regarding the maximum limit of the dimensions that can be obtained by this device (100) is resolved, and there is no theoretical maximum limit to the dimensions that this device (100) can handle.

[0098] The ruler (130) of this device (100) has a minimum width setting of 10 mm, and since it is constructed to obtain the desired dimension by combining multiple rulers (130) with a width of 10 mm or more, there is a minimum dimension that can be obtained solely by the width of the combined rulers (130). However, by using a copy of a ruler (161) with a width of 10 mm or a ruler (162) with a width of 20 mm as a spacer (232b, 232c), and creating a gap between the styrene board (S) and the stopper (110), the problem regarding the minimum dimension that can be obtained by this device (100) is resolved, and the theoretical minimum dimension that this device (100) can handle becomes 0.1 mm.

[0099] Although an apparatus according to an embodiment of the present invention has been described, the apparatus according to the present invention is not limited to the above embodiment and may also be modified as follows.

[0100] The group of rulers (140, 150, 160, 170) in this embodiment includes a group of rulers with millimeter markings (140), a group of rulers with comma markings (150), a group of rulers with 1-centimeter markings (160), and a 10-centimeter ruler (170). However, depending on the implementation, the ruler (130) may consist only of the group of rulers with millimeter markings (140).

[0101] Alternatively, depending on the implementation situation, the rulers (130) provided may consist only of a group of millimeter-marked rulers (140) and a group of comma-marked rulers (150).

[0102] Alternatively, depending on the implementation situation, the rulers (130) provided may consist only of millimeter-marked rulers (140) and centimeter-marked rulers (160).

[0103] Alternatively, depending on the implementation situation, the rulers to be provided (130) may consist only of a group of millimeter-marked rulers (140) and a 10-centimeter ruler (170).

[0104] The set of rulers in this embodiment (140, 150, 160, 170) comprises four types: a millimeter-marked ruler set (140), a comma-marked ruler set (150), a centimeter-marked ruler set (160), and a 10-centimeter ruler (170). However, the types of ruler sets (140, 150, 160, 170) are not limited, and other types of ruler sets may be provided, for example, a meter-marked ruler set with widths in 1-meter increments.

[0105] The multiple ruler groups (140, 150, 160, 170) in this embodiment include nine rulers in the millimeter increment group (140), nine rulers in the comma increment group (150), five rulers in the centimeter increment group (160), and a 10-centimeter ruler (170). However, the number of rulers belonging to each ruler group (140, 150, 160, 170) is not limited and may be more or less than that in this embodiment.

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

[0107] Furthermore, the length of the ruler (130) (141L, 151L, 161L, 171L) is acceptable even if it is 150mm or less, as long as it is a length suitable for cutting purposes.

[0108] In the embodiment of the present invention, the ruler (130) is formed with a thickness of 2 mm, but the thickness of the ruler (130) may be 2 mm or more, as long as it is a thickness suitable for cutting applications.

[0109] Furthermore, the thickness of the ruler (130) is 2 mm or less, as long as it is a thickness suitable for the purpose of joining the long sides together and for cutting.

[0110] Although the dimensional units of the apparatus in the embodiment of the present invention are set based on the metric system, the dimensional units are not limited to the metric system and may be based on other units such as the imperial system.

[0111] As shown in Figures 2, 3, 4, and 5, the ruler (130) of the embodiment of the present invention has width dimension indicators (141D, 151D, 161D, 171D) set at two locations on each end of both the front and back surfaces of the ruler (130), for a total of four locations. However, the position and number of width dimension indicators (141D, 151D, 161D, 171D) are not limited, and if they are not convenient, the width dimension indicators (141D, 151D, 161D, 171D) do not need to be provided.

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

[0113] In this embodiment of the present invention, the stopper (110) is made of metal, but it does not have to be made of metal, as long as it is made of a material sufficient for bringing one end surface of the sheet material into contact with the long side of the ruler (130).

[0114] As shown in Figure 7, the stopper (110) of the embodiment of the present invention has a bottom portion (245, 246) that is processed to prevent slipping, such as knurling. However, the means of preventing slipping is not limited to anti-slip processing, and if it is not convenient, anti-slip measures may not be provided.

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

[0116] The step provided in the stopper (110) of the present invention is not limited to correcting errors (216) caused by the blade thickness (214) of the cutting tool (K) used, but may be used to set other correction values ​​related to desired dimensions.

[0117] In this embodiment, the slide plate (112) is a plate-like body, but the thickness of the end portion (112d) of the slide plate may be thinner than the thickness of the base portion (112b) of the slide plate. Also, as shown in Figure 18, a recess may be provided on the upper side of the slide plate end portion (112d), and the thickness of this end portion (112d) may be reduced. As a result, even if the thickness (223b) of the styrene board (S) is thinner than the thickness of the slide plate base (112b), if the thickness (223b) of that part is greater than or equal to the thickness (112c) of the end (112d) of the slide plate, the ruler (163) will not come into contact with one vertical wall portion (219) of the slide plate (112), but will come into contact with one vertical wall surface (116) of the main body (111), allowing the offset value (221) set in the stopper (110) to function effectively.

[0118] If the user of this device (100) does not need to correct the dimensional value due to the difference in height between the two contact surfaces (219, 116) of the stopper (110), they may use the other vertical wall surface (117) that is erected from the other side of the protrusion (114) at the bottom (115) of the main body (111) of the stopper (110) as the contact surface between the ruler (130) and the styrene board (S), as shown in Figure 9.

[0119] The body (111) of the stopper (110) in the embodiment of the present invention is provided with an inclined portion (118) extending from a vertical wall surface (116) to the upper surface (119). However, the dimensions and angle of this portion are not limited, and the inclined portion (118) may be omitted if it is not convenient for the cutting operation, in which the ruler (130) and the styrene board (S) to be cut are held down and fixed from above by hand.

[0120] The apparatus (100) of the embodiment of the present invention is typically used to cut styrene board (S), which is used in the production of architectural models, to a predetermined width. However, the apparatus (100) of this embodiment is not limited to cutting styrene board (S), and may also be used to cut other sheet materials such as paper, cloth, film, cellophane sheets, cutting color sheets, wood, wood sheets, design sheets, wood grain sheets, rubber sheets, plastic sheets, corrugated plastic, polyvinyl chloride sheets, acrylic sheets, polycarbonate sheets, fluororesin sheets, polypropylene resin sheets, leather sheets, synthetic leather sheets, felt sheets, magnetic sheets, sheet-shaped food products, ceramic plates, ceramics, carpets, masking tape, adhesive tape, etc.

[0121] The use of this device (100) is not limited to this device (100) alone; it may be used in combination with other devices.

[0122] The use of this device (100) is not limited to using it in combination with the stopper (110) and the ruler (130); each can be used individually.

[0123] The apparatus (100) of the embodiment of the present invention may be used not only for cutting but also for marking and other line drawing tasks.

[0124] The apparatus (100) of the embodiment of the present invention may be used for purposes other than cutting or drawing lines, such as using the ruler (130) itself as a spacer when determining the spacing or position of components in other apparatus or other devices. [Explanation of symbols]

[0125] 100… Equipment 110... Stopper 111... Stopper / Main body 112... Stopper / Slide Plate 115... Stopper / Bottom of the main body 130… Ruler 140... A group of rulers marked in millimeter increments. 150... Comma-marked rulers 160... Rulers with centimeter increments 219 ... A vertical wall section that serves as the first contact surface. 116... A vertical wall surface that serves as the second contact surface.

Claims

1. A stopper having a first contact surface against which a straight end formed on the side of the sheet body abuts, Multiple types of rulers formed in a rectangular shape with different width dimensions, Equipped with, The apparatus is characterized in that the aforementioned multiple types of rulers include a group of millimeter-marked rulers having multiple rulers whose width dimensions are formed in millimeter increments.

2. The apparatus according to claim 1, characterized in that the plurality of types of rulers include a group of comma-marked rulers having a plurality of rulers whose width dimensions are formed in comma units.

3. The apparatus according to claim 1 or claim 2, characterized in that the plurality of types of rulers include a group of rulers with widths formed in 10 mm increments.

4. The stopper is The sheet body has a second contact surface to which a ruler placed on the sheet body is made contact, The device according to claim 1, wherein the first contact surface is provided protruding from the second contact surface.

5. The stopper is The main body having the second contact surface formed therein, The first contact surface is formed on a plate provided on the bottom surface of the main body, Equipped with, The apparatus according to claim 4, wherein the plate is provided such that the protrusion width of the first contact surface can be adjusted.

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