Cutting tool and sectioned material cutting method

Abstract

To provide a cutting tool which can reduce a workload compared to a case where a slit is formed by using a cutter, and to provide a sectioned material cutting method.SOLUTION: A cutting tool 1 of a sectioned material 50 includes: a guide roller 33 which may guide the sectioned material 50; a rotary blade 23 which is disposed at the opposite side of the guide roller 33 across the sectioned material 50 and may process a groove in the sectioned material 50; and a movement mechanism which moves the rotary blade 23 forward or rearward relative to the sectioned material 50 guided by the guide roller 33. A moving direction of the sectioned material 50 by the guide roller 33 is the same as a cutting direction of the rotary blade 23.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a cutting tool and a method for cutting a profile material. [Background technology]

[0002] Patent Document 1 discloses a cutting method for a shaped material having a laminate film attached to its surface and multiple guide grooves on its back surface, which includes the steps of aligning a guide portion of a tool with a selected guide groove and cutting the laminate film on the surface with the blade portion of the tool, and cutting the selected guide grooves with a cutter and breaking or twisting the shaped material. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-118321 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned cutting method, a worker at the construction site must move the cutter along the guide groove multiple times to form a cut of a certain depth. In this case, the worker must move the cutter multiple times over the entire length of the shaped material while being careful not to let the cutter blade come out of the guide groove, which creates a problem of heavy workload. Furthermore, as described above, when a laminate film is attached to a profile, after the process of cutting the laminate film is performed, a process of cutting the guide groove with a cutter must be performed, which presents the problem of reduced work efficiency on site.

[0005] A first object of the present invention is to provide a cutting tool and a shape cutting method that can reduce the workload compared to when a cutter is used to form a cut. A second object of the present invention is to provide a cutting tool and a shape cutting method that can improve the work efficiency when cutting a shape having a laminate film attached thereto. [Means for solving the problem]

[0006] The present invention is a cutting tool for shaped materials, comprising a guide roller capable of guiding the shaped material, a blade member arranged on the opposite side of the guide roller across the shaped material and capable of machining grooves in the shaped material, and an advancing / retreating mechanism for moving the blade member forward and backward relative to the shaped material guided by the guide roller, wherein the direction in which the shaped material is moved by the guide roller and the cutting direction of the blade member are the same.

[0007] The present invention provides a method for cutting a profile having a plurality of break grooves formed parallel to and at regular intervals on one side, the method comprising the steps of: guiding the profile by contacting a guide roller of a cutting tool with the other side of the profile, aligning a blade member of the cutting tool along a selected break groove, and sliding the cutting tool relative to the profile to cut the bottom of the break groove; and cutting the profile along the selected break groove.

[0008] The present invention provides a method for cutting a shaped material having a plurality of parallel and regularly spaced breaking grooves formed on one side and a laminate film attached to the other side, the method comprising the steps of: contacting the other side of the shaped material with a guide roller and a second blade member of a cutting tool, aligning the blade member of the cutting tool with a selected breaking groove, and sliding the cutting tool relative to the shaped material to simultaneously cut the bottom of the breaking groove and cut the laminate film; and cutting the shaped material along the selected breaking groove. Effect of the Invention

[0009] According to the present invention, it is possible to provide a cutting tool and a shape cutting method that can reduce the workload compared to when a cutter is used to form a cut. Furthermore, according to the present invention, by providing a second blade member in addition to the blade member, it is possible to provide a cutting tool and a shape cutting method that can improve the work efficiency when cutting a shape with a laminate film attached. [Brief description of the drawings]

[0010] [Figure 1] 1 is a partially cutaway front view showing a cutting tool according to a first embodiment. FIG. [Diagram 2] 1 is a partially cutaway side view showing a cutting tool according to a first embodiment. [Diagram 3] FIG. 2 is a partially cutaway front view showing the cutting tool during cutting of a profile according to the first embodiment. [Figure 4] FIG. 4 is a front view showing a cutting tool according to a second embodiment. [Diagram 5] FIG. 11 is a front view showing the cutting tool during cutting of a profile according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] [First embodiment] The cutting tool 1 of the first embodiment is used to cut the bottom of the break groove 51 formed in the shaped member 50 shown in FIG. 1 to deepen the groove. The shaped member 50 is used as an outer frame or an inner frame of a new frame when remodeling a door or window, and is formed of an extruded shaped member made of metal such as aluminum or an extruded shaped member made of synthetic resin. The shaped member 50 needs to be cut to adjust the length of the plate-like portion according to the fit of the new frame and the skeleton. For this reason, the shaped member 50 has a plurality of break grooves 51 formed on one side (hereinafter referred to as the back side) of the plate-like portion to be adjusted in length. The break grooves 51 are formed parallel and at equal intervals, and the depth of the grooves is set to about 1 / 3 to 1 / 4 of the plate thickness. Then, at the construction site, the cutting tool 1 is used to deepen the break groove 51 selected according to the fit of the new frame and the skeleton to make it easier to break it, and the selected break groove 51 is cut by breaking off the outer periphery side using pliers or the like. Moreover, in the shaped member 50 of this embodiment, a laminate film 52 for improving the design and protecting the shaped member 50 is attached to the other surface (hereinafter referred to as the front surface) of the plate-like portion on which the breaking groove 51 is formed. In addition, in each drawing showing the shaped member 50, the laminate film 52 is shown by a dotted line to distinguish it from the shaped member 50.

[0012] Next, the cutting tool 1 used in cutting the section 50 will be described with reference to FIGS. The cutting tool 1 includes a main body 10 , a cutter unit 20 , and a guide unit 30 . The main body 10 includes a base portion 11 that supports the guide unit 30, a support portion 12 that supports the cutter unit 20 so that the cutter unit 20 can move up and down, and a connecting portion 13 that connects the base portion 11 and the support portion 12 together. The base portion 11 has a bottom surface portion 111 and two side surface portions 112, and is formed in a groove shape with an opening at the top and at the side surface opposite the connecting portion 13. The two side surface portions 112 extend in a direction perpendicular to the bottom surface portion 111, specifically, upward, and are disposed opposite to each other. The side surface portions 112 may be formed integrally with the bottom surface portion 111, or may be formed separately from the bottom surface portion 111.

[0013] A guide hole 120 is formed in the support portion 12, penetrating in the vertical direction. The guide hole 120 has a large diameter portion 121 and a small diameter portion 122. The large diameter portion 121 opens on the lower surface of the support portion 12, i.e., on the base portion 11 side, and is formed in a rectangular cross section. The small diameter portion 122 is formed continuously on the upper side of the large diameter portion 121, and is formed in a circular cross section. The connecting portion 13 is formed in a substantially U-shape when viewed from the front as shown in FIG.

[0014] The cutter unit 20 comprises a handle 21, a box 22 connected to the handle 21, a rotary blade 23 rotatably provided at the lower end of the box 22, and a disk-shaped guide wheel 24 provided coaxially with the rotary blade 23. The handle 21 includes a handle body 210 and a fixing screw 215. The handle body 210 includes a shaft portion 211 and an operating portion 212, and a male thread 213 is formed on the shaft portion 211. A fixing screw 215 is connected to the lower end of the shaft portion 211 via a high nut 216. The fixing screw 215 is, for example, a flat head screw. The shaft portion 211 is disposed so as to penetrate the small diameter portion 122 in the vertical direction, and is screwed into a nut 123 which is fixed to the upper surface of the support portion 12 by welding or the like. The operating portion 212 is formed in a bar shape extending laterally from the upper end of the shaft portion 211. By turning the operating portion 212 to rotate the shaft portion 211, the shaft portion 211 moves up and down due to the action of the male screw 213 that is screwed into the nut 123.

[0015] The box 22 is configured to include a rectangular tube portion 221 and a top surface portion 222 that closes the upper opening of the rectangular tube portion 221. The rectangular tube portion 221 is configured with four side plate portions, and long grooves 223 that are long in the vertical direction are formed in two opposing side plate portions, and further, a pin 25 is attached to the lower end portion of the side plate portion by penetrating the side plate portion. A guide pin 26 fixed to the support portion 12 is inserted into the long groove 223. The vertical movement range of the box 22 is restricted by the guide pin 26 inserted into the long groove 223, and the rotation of the box 22 is also restricted. Of the four side plate parts of the rectangular tube part 221, two side plate parts not having the long groove 223 have a long groove 224 that opens to the lower end of the side plate part. A blade part 232 of the rotary blade 23, which will be described later, is arranged in the long groove 224. A hole through which the shaft of the fixing screw 215 can be inserted is formed in the upper surface portion 222, and the upper surface portion 222 is disposed and supported between the head of the fixing screw 215 and the high nut 216. Therefore, the box 22 is supported by the fixing screw 215 and hangs down so as not to fall.

[0016] The rotary blade 23 includes a disk-shaped main body 231 rotatably supported on a pin 25, and a blade portion 232 formed on the outer periphery of the main body 231. The main body 231 incorporates a bearing and is configured to be able to rotate smoothly on the pin 25. The rotary blade 23 cuts the bottom of the break groove 51 and forms a blade member capable of cutting the break groove 51 to process the groove. The box 22 to which the rotary blade 23, which is a blade member, is attached and the handle 21 form a moving member to which the blade member is attached. Furthermore, since the male screw 213 of the shaft 211 is screwed into the nut 123 fixed to the support 12, the box 22 and the rotary blade 23 can be moved up and down each time the handle 21 is rotated. For this reason, by rotating the handle 21 at a certain angle, for example, at 180° intervals, the rotary blade 23 can be moved closer to the second rotary blade 34 at a certain dimension, and the cutting depth dimension of the shaped material 50 can be easily adjusted at a certain amount. Therefore, the support 12 to which the nut 123 is fixed, the handle 21, and the box 22 form an advance / retract mechanism for advancing and retracting the rotary blade 23, which is a blade member, relative to the shaped material 50. Further, the long groove 223 of the box 22 and the guide pin 26 that is inserted through the long groove 223 and fixed to the support portion 12 form a restriction mechanism that restricts the lower limit position and the upper limit position of the rotary blade 23.

[0017] The guide wheel 24 has a structure similar to that of the rotary blade 23, and includes a disk-shaped main body 241 with a built-in bearing and rotatably supported on the pin 25, and a guide piece 242 formed on the outer periphery of the main body 241. The guide piece 242 is configured similarly to the blade portion 232 of the rotary blade 23, but does not have the function of cutting the break groove 51 because the blade is not sharpened. The guide wheel 24 guides the blade portion 232 of the rotary blade 23 to move while rotating along the break groove 51 of the processing target by the guide piece 242 moving within the break groove 51. For this reason, the interval between the blade portion 232 of the rotary blade 23 and the guide piece 242 of the guide wheel 24 is set according to the interval between the break grooves 51, and in this embodiment, it is set to twice the interval between the break grooves 51. Therefore, the guide wheel 24 is a guide member that prevents the rotary blade 23, which is a blade member, from shifting sideways.

[0018] The guide unit 30 includes a case 31, a pin 32 fixed to the case 31, a guide roller 33 rotatably supported on the pin 32, a second rotary blade 34 arranged in a position opposite the rotary blade 23, and a collar 35. The case 31 is configured in a rectangular frame shape and includes a pair of side plates 311 arranged along the inner surface of the side portion 112 of the base portion 11, i.e., along the opposing surfaces, and a pair of bearing plates 312 arranged between the pair of side plates 311 and supporting each end of the pin 32. The guide rollers 33 incorporate bearings and are rotatably supported on the pin 32. In this embodiment, the two guide rollers 33 are disposed apart from each other in the axial direction of the pin 32. The second rotary blade 34 has the same structure as the rotary blade 23, and includes a disk-shaped main body 341 with a built-in bearing and rotatably supported on the pin 32, and a second blade portion 342 formed on the outer periphery of the main body 341. The second rotary blade 34 is disposed between two guide rollers 33. The second blade portion 342 of the second rotary blade 34 and the guide roller 33 have substantially the same diameter, and the upper end of the second blade portion 342, i.e., the portion that abuts against the shaped material 50, and the upper surface of the guide roller 33, i.e., the portion that abuts against the shaped material 50, are at the same height, i.e., on the same plane. The collar 35 is attached to the pin 32 and is a component that determines the positions of the guide roller 33 and the second rotary blade 34. For this reason, the collar 35 is disposed between the bearing plate 312 and each guide roller 33, and between each guide roller 33 and the second rotary blade 34. The guide unit 30 is fixed to the base portion 11 by a bolt 36 and a nut 37 that pass through the side portion 112 and the side plate 311 .

[0019] Since the rotational axis direction of the guide roller 33 of the guide unit 30 is the same as the rotational axis direction of the rotary blade 23 and the second rotary blade 34, the cutting direction in which the shaped material 50 is cut by the blade portion 232 of the rotary blade 23 and the second blade portion 342 of the second rotary blade 34 is the same as the moving direction in which the shaped material 50 is moved by the guide roller 33.

[0020] [How to cut shapes] Next, steps of the shape-cutting method for cutting the shape 50 will be described with reference to FIG. At the construction site, the fitting is confirmed and the break groove 51 to be cut in the shaped material 50 is selected. The shaped material 50 is placed between the cutter unit 20 and the guide unit 30 of the cutting tool 1 with the surface with the laminate film 52 attached facing down and the break groove 51 facing up. Then, the handle 21 is operated to move the cutter unit 20 downward, that is, toward the guide unit 30. When the blade portion 232 of the rotary blade 23 is pressed against the shaped material 50 by the downward movement of the cutter unit 20, the high nut 216 abuts against the upper surface portion 222 of the box 22. As a result, the blade portion 232 of the rotary blade 23 and the guide piece 242 of the guide wheel 24 abut against the break groove 51 with a predetermined pressure, and the surface of the shaped material 50 with the laminate film 52 attached abuts against the guide roller 33. Further, the second blade portion 342 of the second rotary blade 34 also comes into contact with the laminate film 52 attached to the shaped member 50 with a predetermined pressure. In this state, the cutting tool 1 is slid relative to the shaped material 50 in the rotational direction of the rotary blade 23 and the second rotary blade 34, and the cutting tool 1 cuts the entire length of the shaped material 50. That is, the blade portion 232 of the rotary blade 23 cuts the bottom of the breaking groove 51 to form a notch, and the breaking groove 51 is machined deeply. Also, the laminate film 52 is cut by the second blade portion 342 of the second rotary blade 34.

[0021] When the depth of the break groove 51 is to be made deeper, the handle 21 is rotated by a predetermined angle, for example, 180 degrees, and the rotary blade 23 is moved further toward the second rotary blade 34, and the shaped material 50 is slid. This causes the blade portion 232 of the rotary blade 23 to cut further into the bottom of the break groove 51, and the break groove 51 is made deeper. Furthermore, if the laminate film 52 is not completely cut, the second blade portion 342 of the second rotary blade 34 can reliably cut the laminate film 52. Furthermore, if the laminate film 52 has been cut and the second blade portion 342 is in direct contact with the shaped material 50, a groove is also machined on the surface opposite to the break groove 51 by the second blade portion 342.

[0022] As described above, the handle 21 is rotated to bring the rotary blade 23 close to the second rotary blade 34, and the rotary blade 23 and the second rotary blade 34 are in contact with the shaped material 50, and the cutting tool 1 is slid relative to the shaped material 50 to perform the cutting of the break groove 51 and the cutting of the laminate film 52. Furthermore, the handle 21 is rotated and the cutting tool 1 is slid to cut the break groove 51 and the shaped material 50, and the cutting operation is repeated. At this time, the rotary blade 23 and the second rotary blade 34, which are blade members, can rotate in both directions to cut, so that the cutting tool 1 can be moved back and forth in the longitudinal direction of the shaped material 50 to cut efficiently. In addition, even if the handle 21 is rotated, the box 22 does not rotate, and the orientation of the rotary blade 23 rotatably supported by the box 22 is also constant, that is, the cutting direction by the rotary blade 23 is also maintained constant, so that the height of the box 22 and the rotary blade 23 can be adjusted steplessly by the handle 21, and the cutting depth of the shaped material 50 by the rotary blade 23 can also be freely adjusted.

[0023] As described above, after cutting and notching the break groove 51 to be cut using the cutting tool 1, the plate-like portion of the shaped material 50 that is outside the break groove 51 to be cut is broken off using pliers or the like, thereby cutting the shaped material 50 from the break groove 51 portion.

[0024] [Effects of the first embodiment] According to the cutting tool 1 of this embodiment, the shaped material 50 is disposed between the rotary blade 23 of the cutter unit 20 and the second rotary blade 34 of the guide unit 30, and the handle 21 is rotated to bring the rotary blade 23 into contact with the rear surface of the shaped material 50, and the guide roller 33 and the second rotary blade 34 into contact with the front surface. Since the cutting direction of the rotary blade 23 and the second rotary blade 34 and the rotation direction of the guide roller 33 are the same direction, the cutting tool 1 is slid while the rotary blade 23 and the second rotary blade 34 are in contact with the shaped material 50, so that the rotary blade 23 can cut the break groove 51, and the second rotary blade 34 can cut the laminate film 52. Therefore, compared to the case of forming the cut using a cutter as in Patent Document 1, the work load can be reduced and the work speed can be improved. In addition, a rotary blade 23 and a second rotary blade 34 are used as the blade members, and the shaped material 50 is also guided by a guide roller 33, so that the cutting tool 1 can be moved back and forth in the longitudinal direction of the shaped material 50 to perform the work, thereby further improving the work speed. Furthermore, since cutting of the breaking groove 51 by the rotary blade 23 and cutting of the laminate film 52 by the second rotary blade 34 can be performed simultaneously, work efficiency can be improved compared to Patent Document 1.

[0025] A male thread 213 formed on the shaft portion 211 is screwed into a nut 123 fixed to the support portion 12, and by rotating the handle 21, the box 22, i.e., the rotating blade 23, moves up and down to abut against the shaped material 50, so that the cutting tool 1 can be used for various shaped materials 50 with different thickness dimensions. In addition, by operating the handle 21, the rotary blade 23 and the second rotary blade 34 can be brought into contact with the shaped material 50 with a constant pressure, and when the cutting tool 1 is slid over the shaped material 50, the rotary blade 23 and the second rotary blade 34 can reliably cut and sever the break groove 51 and the laminate film 52 of the shaped material 50. Furthermore, since the male thread 213 of the handle 21 is screwed into the nut 123, the amount of rotation of the handle 21 and the amount of vertical movement of the rotary blade 23 are linked, and the vertical position of the rotary blade 23 can be precisely adjusted by controlling the amount of rotation of the handle 21. Therefore, even when the cutting tool 1 is moved multiple times, the cutting depth of the breakage groove 51 can be precisely set. Moreover, since the box 22 does not rotate even when the handle 21 is rotated, the orientation of the rotary blade 23, which is rotatably supported by the box 22, can be maintained constant. Therefore, the height of the box 22 and the rotary blade 23 can be adjusted steplessly by the handle 21, and the cutting depth of the shaped material 50 by the rotary blade 23 can also be freely adjusted.

[0026] Since the cutter unit 20 is provided with the guide wheel 24 as a guide member, the rotary blade 23 can be prevented from shifting sideways, and the rotary blade 23 can reliably cut the breaking groove 51 without coming off the breaking groove 51.

[0027] [Second embodiment] Next, a cutting tool 1B according to a second embodiment will be described with reference to FIGS. The cutting tool 1B of the second embodiment includes a main body 10B, a cutter unit 70, and a guide unit 30. The main body 10B includes a base portion 11B, a support portion 12B, and a connecting portion 13B. The base portion 11B includes a bottom surface portion 111 and a pair of side surface portions 112, similar to the base portion 11 of the first embodiment, and therefore will not be described. The support portion 12B is formed with a guide hole 15 into which a cutter unit 70, which will be described later, can be inserted. The guide hole 15 includes a large diameter portion 151 and a small diameter portion 152. The large diameter portion 151 opens on the lower surface of the support portion 12B, i.e., on the side of the base portion 11B. The small diameter portion 152 is formed continuously with the upper side of the large diameter portion 151. The connecting portion 13B, like the connecting portion 13 in the first embodiment, is formed in a substantially U-shape when viewed from the front, and connects the base portion 11B and the support portion 12B.

[0028] The guide unit 30 has the same configuration as in the first embodiment, so it is given the same reference numerals and the description thereof is omitted.

[0029] The cutter unit 70 includes a shaft portion 71, a rotary blade 23 provided at the lower end of the shaft portion 71, a disk-shaped guide wheel 24 provided coaxially with the rotary blade 23, and a coil spring 75 that urges the shaft portion 71 downward. The rotary blade 23 and the guide wheel 24 have the same structure as in the first embodiment, and therefore description thereof will be omitted. The shaft portion 71 has an outer diameter corresponding to the inner diameter of the large diameter portion 151 of the guide hole 15 and is inserted into the large diameter portion 151 so as to be able to move up and down, and a small diameter portion 712 has an outer diameter corresponding to the inner diameter of the small diameter portion 152 and is inserted into the small diameter portion 152 so as to be able to move up and down. A pair of shaft supports 713 are formed at the lower end of the shaft portion 71, and a pin 25 is attached to the pair of shaft supports 713. As in the first embodiment, the rotary blade 23 and the guide wheel 24 are rotatably supported by the pin 25. In the cutting tool 1B as well, the rotation directions of the rotary blade 23, the second rotary blade 34, the guide wheel 24, and the guide roller 33 coincide with the rotation direction of the rotary blade 23.

[0030] The coil spring 75 is disposed around the small diameter portion 712. The upper end of the coil spring 75 abuts against the upper end of the large diameter portion 151 of the guide hole 15, and the lower end of the coil spring 75 abuts against the upper surface of the large diameter portion 711 of the shaft portion 71. As a result, the coil spring 75 biases the shaft portion 71 downward, that is, toward the second rotary blade 34 of the guide unit 30. Therefore, as shown in FIG. 4, when the cutting tool 1B is not in use, the blade portion 232 of the rotary blade 23 and the second blade portion 342 of the second rotary blade 34 are in contact with each other, and the guide piece 242 of the guide wheel 24 is in contact with one of the guide rollers 33. Therefore, the shaft portion 71 to which the rotary blade 23, which is a blade member, is attached constitutes a moving member to which the blade member is attached. In addition, the guide hole 15 of the support portion 12B, the coil spring 75, and the shaft portion 71 constitute an advancing and retreating mechanism that moves the rotary blade 23, which is a blade member, forward and backward relative to the shaped material 50 guided by the guide rollers 33.

[0031] [How to cut shapes] Next, steps of the shape cutting method according to the second embodiment will be described with reference to FIG. At the construction site, the fitting is confirmed and the break groove 51 to be cut in the shaped material 50 is selected. The shaped material 50 is placed between the cutter unit 70 and the guide unit 30 of the cutting tool 1B with the surface with the laminate film 52 attached facing down and the break groove 51 facing up. Since the cutter unit 70 is biased downward by the coil spring 75, in order to place the shaped material 50 between the cutter unit 70 and the guide unit 30, for example, the cutter unit 70 may be moved upward against the biasing force of the coil spring 75 to place the shaped material 50, or the end face in the longitudinal direction of the shaped material 50 may be pushed between the rotary blade 23 of the cutter unit 70 and the second rotary blade 34 of the guide unit 30 and placed. Since the cutter unit 70 is biased toward the guide unit 30 by the coil spring 75, the blade portion 232 of the rotary blade 23 and the guide piece 242 of the guide wheel 24 each abut against the breaking groove 51, and the surface of the shaped material 50 on which the laminate film 52 is affixed abuts against the guide roller 33. In addition, the second blade portion 342 of the second rotary blade 34 also abuts against the laminate film 52 affixed to the shaped material 50. In this state, the cutting tool 1B is slid relative to the shaped material 50 in the rotational direction of the rotary blade 23 and the second rotary blade 34, and cuts the entire length of the shaped material 50. That is, the bottom of the breaking groove 51 is cut by the blade portion 232 of the rotary blade 23, and the groove is processed deeply. Also, the laminate film 52 is cut by the second blade portion 342 of the second rotary blade 34.

[0032] To make the depth of the break groove 51 deeper, the number of times the cutting tool 1B is moved over the entire length of the shaped material 50 may be increased. That is, the blade portion 232 and the second blade portion 342 are always in contact with the shaped material 50 due to the biasing force of the coil spring 75, so that the bottom of the break groove 51 is further cut by the blade portion 232 every time the cutting tool 1B is moved, and the groove is machined deeper. In addition, the second blade portion 342 of the second rotary blade 34 can reliably cut the laminate film 52 when the laminate film 52 is not completely cut. Furthermore, when the laminate film 52 is cut and the second blade portion 342 is in direct contact with the shaped material 50, a groove is also machined on the surface opposite to the break groove 51 by the second blade portion 342.

[0033] As described above, after cutting and notching the break groove 51 to be cut using the cutting tool 1B, the plate-like portion of the shaped material 50 that is outside the break groove 51 to be cut is broken off using pliers or the like, thereby cutting the shaped material 50 from the break groove 51 portion.

[0034] [Effects of the second embodiment] The second embodiment can achieve the same effects as the first embodiment. Furthermore, since the cutter unit 70 biases the shaft portion 71 with the coil spring 75, the rotary blade 23 can be constantly brought into contact with the shaped material 50. Therefore, the worker does not need to bring the rotary blade 23 or the second rotary blade 34 into contact with the shaped material 50, and can simply move the cutting tool 1B relative to the shaped material 50, improving workability.

[0035] [Variations] The cutting tool of the present invention is not limited to the cutting tools 1 and 1B of the above-mentioned embodiments. For example, the cutting tool may not have the second rotary blade 34. In particular, when cutting a shaped material 50 on whose surface a laminate film 52 is not attached, a cutting tool without the second rotary blade 34 can be used. However, even for a shaped material 50 on which a laminate film 52 is not attached, if the cutting tool 1 or 1B having the second rotary blade 34 in addition to the rotary blade 23 is used, grooves can be machined from both sides of the shaped material 50, so that the number of times the cutting tool 1 or 1B is moved can be reduced, and the work efficiency can be improved.

[0036] In each of the above-described embodiments, the cutter units 20, 70 are moved up and down relative to the support parts 12, 12B to advance and retract the rotary blade 23, which is a blade member, relative to the shaped material 50, but the guide unit 30 may be moved up and down relative to the base parts 11, 11B to advance and retract the shaped material 50 relative to the rotary blade 23. In addition, the advance and retract mechanism is not limited to one using the nut 123, the male screw 213, or the coil spring 75, and may be any mechanism that can advance and retract the rotary blade 23 relative to the shaped material 50.

[0037] The blade member and the second blade member of the cutting tool are not limited to the rotary blade 23 and the second rotary blade 34, and may be a straight blade such as a cutter blade. However, using the rotary blade 23 and the second rotary blade 34 has the advantages of less resistance during cutting, less cutting noise, and the ability to cut back and forth. The number of guide rollers 33 is not limited to two, and may be one, or three or more. In particular, when the second rotary blade 34 is not provided, one guide roller 33 may be disposed in a position facing the rotary blade 23.

[0038] The guide member for the cutting tool is not limited to the guide wheel 24. For example, the guide member may be a guide piece that can advance and retreat from the connecting parts 13, 13B toward the shaped member 50. By bringing this guide piece into contact with an end face along the longitudinal direction of the shaped member 50, the cutting tools 1, 1B can be prevented from shifting laterally relative to the shaped member 50, and therefore the rotary blade 23 and the second rotary blade 34 can also be prevented from shifting laterally. Also, a cutting tool without a guide member may be used. In particular, when a break groove 51 is formed in the shaped member 50, the rotary blade 23 is guided by the break groove 51, so that the rotary blade 23 can move along the break groove 51 even without a guide member.

[0039] The shaped material 50 is not limited to having the break groove 51 or the laminate film 52. For example, even if the break groove 51 is not formed in the shaped material 50, a groove for breaking can be processed by the rotary blade 23 or the second rotary blade 34. In particular, if the shaped material 50 is provided with a guide piece that abuts against the end face in the longitudinal direction, a linear groove can be processed in the shaped material 50 even if the break groove 51 is not processed. Furthermore, the cutting of the shaped material 50 is not limited to a process that includes a step of breaking it off with pliers, and the shaped material 50 may be cut by moving the cutting tools 1, 1B to cut a groove. Furthermore, the cutting tools 1, 1B and the shaped material 50 may be slid relative to each other. The shaped material 50 may be slid relative to the cutting tools 1, 1B, or the cutting tools 1, 1B may be slid relative to the shaped material 50.

[0040] [Summary of the invention] The present invention is a cutting tool for shaped materials, comprising a guide roller capable of guiding the shaped material, a blade member arranged on the opposite side of the guide roller across the shaped material and capable of machining grooves in the shaped material, and an advancing / retreating mechanism for moving the blade member forward and backward relative to the shaped material guided by the guide roller, wherein the direction in which the shaped material is moved by the guide roller and the cutting direction of the blade member are the same. According to the cutting tool of the present invention, a shaped material is placed between the guide roller and the blade member, and the blade member is moved relatively closer to the shaped material by the advance / retract mechanism, so that the blade member comes into contact with one side of the shaped material and the guide roller comes into contact with the other side. Since the cutting direction of the blade member and the direction in which the shaped material is moved by the guide roller are the same, the shaped material can be cut by the blade member by sliding it while being in contact with the blade member and the guide roller, which reduces the workload compared to when a cutter is used to form a cut.

[0041] In the cutting tool of the present invention, it is preferable that the guide roller is configured to include two or more guide rollers spaced apart in the axial direction of the guide roller, and a second blade member is provided between each of the guide rollers, the second blade member being arranged on the opposite side of the blade member with the shaped material sandwiched therebetween. According to the cutting tool of the present invention, since it is provided with two or more guide rollers and the second blade member is provided between each guide roller, both sides of the shaped material can be cut with the blade member and the second blade member. Therefore, when a laminate film is attached to the other side of the shaped material, one side can be cut to form a groove with the blade member while the laminate film on the other side can be cut with the second blade member at the same time, improving the work efficiency when cutting the shaped material with the laminate film attached.

[0042] In the cutting tool of the present invention, the advance / retract mechanism comprises a movable member to which the blade member is attached, and a support part that supports the movable member so that it can advance / retract relative to the profile, and it is preferable that the movable member is supported by a spring or a screw so that it can advance / retract relative to the support part. According to the cutting tool of the present invention, the moving member to which the blade member is attached is supported by a spring or a screw so that it can be advanced and retreated relative to the support part, so that the blade member can be moved closer to the guide roller with a simple mechanism. In particular, if the moving member is configured to be advanced and retreated by a screw, the position of the blade member relative to the shaped material can be set with high precision, and the shaped material can be cut reliably with the blade member. Furthermore, after the blade member is moved over the entire length of the shaped material to cut it, the blade member can be moved at regular intervals by rotating the screw at a certain angle, so that the groove can be efficiently machined. Furthermore, if the moving member is configured to be advanced and retreated by a spring, the blade member can be always abutted against the shaped material, and the operator only needs to move the cutting tool relative to the shaped material, improving workability.

[0043] The cutting tool of the present invention preferably further comprises a guide member provided at a position parallel to the cutting direction of the blade member to prevent lateral displacement of the blade member. According to the cutting tool of the present invention, the guide member can prevent the blade member from shifting laterally, so that the blade member can move straight relative to the shaped material, and the grooves that are machined can be machined in a straight line with high accuracy.

[0044] In the cutting tool of the present invention, it is preferable that the blade member is configured to be moved along a breaking groove of the cutting target of the profile having a plurality of breaking grooves formed in parallel and at regular intervals, so as to form a notch at the bottom of the breaking groove, and the guide member is configured to be moved along a breaking groove different from the breaking groove of the cutting target. According to the cutting tool of the present invention, a plurality of break grooves are formed in the profile, and the blade member moves along the break groove selected as the cutting target, while the guide member can move along the other break grooves, so that the guide member and the blade member can be easily and accurately moved along each break groove, thereby reliably cutting the selected break groove.

[0045] The present invention provides a method for cutting a profile having a plurality of break grooves formed parallel to and at regular intervals on one side, the method comprising the steps of: guiding the profile by contacting a guide roller of a cutting tool with the other side of the profile, aligning a blade member of the cutting tool along a selected break groove, and sliding the cutting tool relative to the profile to cut the bottom of the break groove; and cutting the profile along the selected break groove. According to the present invention, the shaped material can be cut by the blade member by sliding the shaped material while it is in contact with the blade member and the guide roller, which reduces the workload compared to when a cutter is used to form the notches. Also, the shaped material can be cut efficiently by breaking off the notched break groove portion of the shaped material with pliers or the like.

[0046] The present invention provides a method for cutting a shaped material having a plurality of parallel and regularly spaced breaking grooves formed on one side and a laminate film attached to the other side, the method comprising the steps of: contacting the other side of the shaped material with a guide roller and a second blade member of a cutting tool, aligning the blade member of the cutting tool with a selected breaking groove, and sliding the cutting tool relative to the shaped material to simultaneously cut the bottom of the breaking groove and cut the laminate film; and cutting the shaped material along the selected breaking groove. According to the present invention, the shaped material can be cut by the blade member by sliding the shaped material while it is in contact with the blade member and the guide roller, and the workload can be reduced compared to when a cutter is used to form the incision. Furthermore, while cutting one side to form a groove with the blade member, the laminate film on the other side can be cut with the second blade member at the same time, and the efficiency of cutting the shaped material to which the laminate film is attached can be improved. In addition, the shaped material can be cut efficiently by breaking off the incised break groove portion with pliers or the like. [Explanation of symbols]

[0047] 1...Cutting tool, 1B...Cutting tool, 10...Main body, 10B...Main body, 11...Base portion, 11B...Base portion, 12...Support portion, 12B...Support portion, 13...Connecting portion, 13B...Connecting portion, 15...Guide hole, 20...Cutter unit, 21...Handle, 22...Box, 23...Rotary blade, 24...Guide wheel, 25...Pin, 26...Guide pin, 30...Guide unit, 33...Guide roller, 34...Second rotary blade, 50...Shaped material, 51...Break-off groove, 52...Laminate film , 70...cutter unit, 71...shaft portion, 75...coil spring, 120...guide hole, 121...large diameter portion, 122...small diameter portion, 151...large diameter portion, 152...small diameter portion, 210...handle body, 211...shaft portion, 212...operation portion, 213...male thread, 215...fixing screw, 216...high nut, 221...square tube portion, 222...upper surface portion, 223...long groove, 224...long groove, 232...blade portion, 242...guide piece, 342...second blade portion, 711...large diameter portion, 712...small diameter portion, 713...axis support portion.

Claims

1. A cutting tool for a profile, comprising: A guide roller capable of guiding the profile; a blade member disposed on the opposite side of the guide roller with respect to the shaped material and capable of machining a groove in the shaped material; and a reciprocating mechanism for relatively advancing and retracting the blade member with respect to the shaped material guided by the guide roller. The direction in which the guide roller moves the profile and the cutting direction of the blade member are the same. A cutting tool characterized by:

2. The cutting tool according to claim 1, The guide roller comprises two or more guide rollers spaced apart in an axial direction of the guide roller, A second blade member is provided between the guide rollers and disposed on the opposite side of the blade member with the shaped member interposed therebetween. A cutting tool characterized by:

3. The cutting tool according to claim 1, The advance / retract mechanism includes: A moving member to which the blade member is attached; A support portion that supports the movable member so as to be movable forward and backward relative to the profile, The moving member is supported by a spring or a screw so as to be movable forward and backward relative to the support portion. A cutting tool characterized by:

4. The cutting tool according to claim 1, A guide member is provided in a position parallel to the cutting direction of the blade member to prevent the blade member from shifting sideways. A cutting tool characterized by:

5. The cutting tool according to claim 4, The blade member is configured to be moved along the break groove of the cutting target of the shaped material having a plurality of break grooves formed in parallel and at regular intervals, and to form a cut at the bottom of the break groove; The guide member is configured to be movable along a breaking groove different from the breaking groove of the cutting target. A cutting tool characterized by:

6. A method for cutting a shape having a plurality of break grooves formed parallel to one surface at regular intervals, comprising: A step of cutting the bottom of the break groove by sliding the cutting tool relative to the shaped material while guiding the shaped material by contacting a guide roller of the cutting tool with the other surface of the shaped material and aligning the blade member of the cutting tool along the selected break groove; cutting the profile along selected break grooves; A shape cutting method comprising the steps of:

7. A method for cutting a shaped material having a plurality of break grooves formed parallel to one side at regular intervals and a laminate film attached to the other side, comprising: A step of contacting the guide roller and the second blade member of the cutting tool with the other surface of the shaped material, and aligning the blade member of the cutting tool with the selected breaking groove, and sliding the cutting tool relative to the shaped material to simultaneously cut the bottom of the breaking groove and cut the laminate film; cutting the profile along selected break grooves; A shape cutting method comprising the steps of:

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