JP2011166975A - Sheath cutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily cut a sheathing material sheathing the surface of a bent core material made of a hard substance or a core material with both ends in a non-open state. <P>SOLUTION: According to the sheath cutter 20, a rear face part 32 and a guide part 40 are brought into contact with a core material 10 from the side of the core material 10, and the edge of a blade 62 is brought into contact with the surface of the core material 10 by a blade position adjusting bar 50. In this state, when the sheath cutter 20 moves in the direction of proceeding, the blade 62 moves along the surface of the core material 10. Even if both ends of the core material 10 are fixed to a wall, floor, ceiling, etc., in a non-open state, a sheathing material 12 sheathing the surface of the core material 10 can be easily without removing the core material 10 in advance. Because the core material 10 is held at its both sides by the circumferential surface of the disc-shaped guide part 40 and the edge of the movable blade 62, the core material 10 can be set at a cutting position even if the core material 10 has a curved surface that cannot be easily deformed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a coated cutting tool.

  2. Description of the Related Art Conventionally, a coated cutting tool for cutting an outer skin such as polyethylene covering a surface is known. For example, in Patent Document 1, a cutting edge holding portion is provided at the upper end of a vertically long base in a C shape in side view, the cutting edge is fixed to the lower end of the cutting edge holding portion, and is fitted and locked to the lower end of the C type base. A cutter is described in which a presser plate is pivotally attached to the adjusted plate, and the presser plate is attached upward by a spring mechanism provided on the adjustment plate (see FIG. 13). In this cutter, the outer skin is incised by sliding the cutter in the cable direction while hitting one end of the cutter with a mallet or the like while holding the cable between the C-shaped base and the presser plate.

Japanese Utility Model Publication No. 2-142915

  However, in such a coated cutting tool, the core material is not straight (bar shape) because the core material is fixed with a flat surface (presser plate) with such a strong force that the cutter cannot be slid unless hit with a wooden hammer. In this case, there is a problem that the carter cannot be slid with the cable sandwiched. In other words, in such a coated cutting tool, when the core material is not deformed in a straight line (for example, in the case of a copper U-shaped tube or the like), the coating material covered with the core material cannot be cut. There are challenges.

  The present invention has been made in view of such problems, and even when the core material is not deformed in a straight line, the coating material cutting that can easily cut the coating material covering the core material The main purpose is to provide ingredients.

  The present invention adopts the following means in order to achieve the above-mentioned object.

The coated cutting tool of the present invention is
A cutting tool for cutting a covering material covering at least a part of the long core material,
A blade for cutting the covering material;
An abutting member having a convex or curved support portion that supports the core material or the covering material;
In a state where the core material or the covering material is supported by the contact member, the blade is moved from a contact position where the blade contacts the core material to an open position where the core material can be detached from the support portion. A blade position adjusting member to be
A base member for positioning the contact member and the blade position adjusting member;
It is equipped with.

  In this coated cutting tool, the position of the core material is positioned by the support portion having a convex shape or a curved shape, and therefore the contact surface between the core material and the support portion is reduced by the convex shape or the curved shape, and the core material is not a straight line. However, it is possible to position the core material in accordance with the shape of the core material. At this time, the blade is positioned at a contact position where the blade contacts the core material when the core material or the covering material is supported by the contact member and an open position where the core material can be detached from the support portion. Therefore, even if the upper and lower ends of the core material are fixed to the ceiling or floor, the coated cutting tool can be applied to the core material to cut the coating material covering the core material. It becomes possible. In other words, since the covering material can be cut in advance without cutting the upper end of the core material or the malleable and opening it, the covering material can be cut more easily.

  In the coated cutting tool of the present invention, the contact member may rotate in the moving direction of the core material. In this way, when the relative position of the coating cutting tool and the core material is changed in the long handle direction when cutting the coating material, the contact member rotates with the change in the position of the core material, and the The frictional force with the contact member is reduced. By doing so, labor at the time of cutting the covering material can be reduced. In other words, it becomes possible to cut the covering material covered with the core material more easily.

  The dressing material cutting tool of the present invention may include a blade member having the blade on the top surface, the top surface being able to contact a part of the dressing material. In this way, since the covering material or the core material can be supported at the three positions of the contact member, the blade portion, and the top surface of the blade member, the covering material or the core material is attached at the two positions of the contact member and the blade portion. Compared with the case where it supports, it becomes possible to position the position of a core material more reliably. In other words, it becomes possible to cut the covering material covered with the core material more easily. Here, the “top surface” refers to a surface on which the blade member has a blade portion, and the distance from the coating material is the shortest when the coating material is cut by the blade portion. .

  The covering material cutting tool of the present invention may include a contact position adjusting member that changes a position of the contact member. In this way, when the core material is introduced into the coated cutting tool, the contact member is positioned away from the planned introduction position, thereby making it easier than the case where the position of the contact member is fixed. It becomes possible to introduce the core material into the coated cutting tool. Also, when cutting the covering material with a blade, the position of the contact member cannot be adjusted by adjusting the contact member to the contact position where the blade and the core material contact each other. It becomes possible to cut the covering material more easily. The covering cutting tool which employ | adopted this aspect may be provided with the control member which controls the approach to the said core material of the said contact node position adjustment member in a predetermined position. By doing so, the distance between the contact position adjusting member and the core material can be prevented from approaching a predetermined distance or less, so that the blade collides more strongly with the core material than when no regulating member is provided. Therefore, it is possible to reduce the possibility of breakage.

  At this time, the contact position adjusting member adjusts the position of the contact member by rotating the contact position adjusting member about a first rotation shaft provided on one end side, and the blade The position adjusting member may adjust the position of the blade by rotating about a second rotating shaft provided on one end side. If it carries out like this, it will become possible to adjust the position of a contact member or a blade by simple operation of rotating a contact position adjustment member or a blade position adjustment member. In the covering material cutting tool of the present invention adopting this aspect, the second rotation shaft may be provided on the contact position adjusting member. In this way, when the contact position adjusting member is rotated, the blade position adjusting member is also rotated in the same manner. Therefore, as compared with the case where the contact position adjusting member and the blade position adjusting member are rotated separately. Thus, the operability can be further improved.

  The coated cutting tool of the present invention may include the blade and a second blade positioned substantially on a straight line across the core material. In this way, since the covering material can be cut into two cut pieces from both sides of the core material by the blades facing each other with the core material sandwiched therebetween, the covering material is more easily than in the case of one cut piece. Can be detached from the core material.

  In the coated cutting tool of the present invention, a plurality of the contact members may be provided in parallel in the long handle direction of the core material. In this way, since the core material can be supported by a plurality of contact members, the position of the core material can be positioned in a more stable state as compared to the case where there is only one contact member.

  The coated cutting tool of the present invention includes a claw member that is in contact with a cut surface of the covering material cut by the blade and is positioned rearward of the blade with respect to the moving direction of the base member. Also good. In this way, since only the base member is moved along the core material, the respective cut surfaces of the covering material cut by the blade portion are moved in the direction away from each other by the nail member, so compared with the case where there is no nail member. Thus, the covering material can be more easily detached from the core material.

  In the coated cutting tool of the present invention, when the contact member supports the core member or the cover member with the corresponding contact member, the contact member is in a four-way direction with respect to the core member and at a position at substantially the same distance. Four may be provided. By doing so, the core material can be supported uniformly from the four directions, and therefore the position of the core material can be more reliably positioned as compared with the case where there is only one contact member. In other words, it becomes possible to cut the covering material covered with the core material more easily.

It is a perspective view which shows the outline of a structure of the covering cutting tool 20 in 1st Embodiment. It is sectional drawing which shows the outline of a structure of the covering cutting tool 20 in 1st Embodiment. It is explanatory drawing for demonstrating the usage condition of the covering cutting tool 20 in 1st Embodiment. It is a side view which shows the outline of a structure of the covering cutting tool 120 in 2nd Embodiment. It is explanatory drawing for demonstrating the motion of the guidance | induction part of the covering cutting tool 120 in 2nd Embodiment. It is explanatory drawing for demonstrating the motion of the blade of the covering cutting tool 120 in 2nd Embodiment. It is sectional drawing which shows the outline of a structure of the other Example of the covering cutting tool 20 in 1st Embodiment. It is sectional drawing which shows the outline of a structure of the other Example of the covering cutting tool 20 in 1st Embodiment. It is sectional drawing which shows the outline of a structure of the other Example of the covering cutting tool 20 in 1st Embodiment. It is a perspective view which shows the outline of a structure of the other Example of the covering cutting tool 20 in 1st Embodiment. It is a perspective view which shows the outline of a structure of the other Example of the covering cutting tool 20 in 1st Embodiment.

  Here, based on the above-described drawings, the correspondence between the constituent elements of the present embodiment and the constituent elements of the present invention will be clarified in describing the embodiment for carrying out the present invention. The coated cutting tool 20 of the present embodiment corresponds to the coated cutting tool of the present invention, the core material 10 corresponds to the core material, the coating material 12 corresponds to the coating material, and the back surface portion 32 and the side surface portion 36 on the wall surface. The base member 30 corresponds to the base member, the blade position adjustment rod 50 corresponds to the blade position adjustment member, the blade 62 corresponds to the blade, the blade unit 60 corresponds to the blade member, and the circle of the guide portion 40 The peripheral surface corresponds to the support portion, the guide portion 40 corresponds to the contact member, the first side surface portion 80 and the second side surface portion 90 correspond to the contact position adjustment member, and the restriction member 84 corresponds to the restriction member. The side connecting shaft 100 corresponds to the first rotating shaft, the connecting shaft 34 corresponds to the second rotating shaft, the second blade 162 corresponds to the second blade, and the claw member 70 corresponds to the claw member. An example of how to use the coated cutting tool of the present invention is also clarified by explaining how to use the coated cutting tool 20.

  Next, the structure of the covering cutting tool 20 which is the 1st Embodiment of this invention is demonstrated in detail using FIG.1 and FIG.2. Here, FIG. 1 is a perspective view showing an outline of a configuration of a coated cutting tool 20 which is an example of the coated cutting tool of the present invention, and FIG. 2 is a cross-sectional view showing an outline of a configuration of the coated cutting tool 20. 1 is a cross-sectional view of a surface that is orthogonal to the core material 12 and includes a point where the coating material 12 and the guide portion 40 come into contact with each other.

  The coated cutting tool 20 according to the first embodiment includes a base member 30 that moves along the core material 10 that is coated with the coating material 12, and a blade position adjustment rod that is fixed to the base member 30 so that one end side thereof is rotatable. 50 and a blade unit 60 fixed to the blade position adjusting rod 50.

  As shown in FIG. 1, the base member 30 is a metal member, and is a substantially L-shaped member in which the back surface portion 32 and the side surface portion 36 are combined at a substantially right angle. A blade position adjusting rod 50 to be described later is attached to the back surface portion 32 so as to be rotatable by a connecting shaft 34. Further, the side surface portion 36 has a through hole 38, and a substantially disc-shaped guide portion 40 is rotatably attached to a side surface of the through hole 38 by a rotating shaft 39 (see FIG. 2).

  As shown in FIG. 1, the blade position adjusting rod 50 is a metal member, and one end side is rotatably attached to the back surface portion 32 by a connecting shaft 34. A blade unit 60 is fixed by a screw 52 at a position closer to the center side of the blade position adjusting rod 50 than the connecting shaft 34. For this reason, the position of the blade unit 60 can be moved by operating the side opposite to the side attached to the back surface portion 32 by the connecting shaft 34.

  As shown in FIG. 1, the blade unit 60 is a substantially rectangular parallelepiped metal member, one end of which is fixed to the blade position adjusting rod 50 by a screw 52, and the blade 62 guides the direction of the blade tip to the other end. It is fixed so as to face the direction of the portion 40. The blade 62 is a double-edged blade having a blade surface in the traveling direction. Here, the traveling direction means a direction in which the coated cutting tool 20 is moved when the coating material 12 coated on the surface of the core material 10 is cut, and in FIG.

  When using this coated cutting tool 20, as shown in FIG. 2, the core material 10 is disposed at a position where the surface of the covering material 12 comes into contact with the back surface portion 32, the guiding portion 40, and the blade edge of the blade 62. At this time, as shown in FIG. 2, the contact point between the guide portion 40 and the covering material 12 and the cutting edge of the blade 62 are positioned on a substantially straight line. For this reason, even if it is a case where the shape of the core material 10 is not a straight line shape (bar shape), the core material 10 can be supported. Since the blade surface of the blade 62 faces the traveling direction side, the covering material 12 is cut when the coated cutting tool 20 is moved to the traveling direction side, but the coated cutting tool 20 is opposite to the traveling direction. When the is moved, the covering material 12 is not cut.

  Moreover, since the facing side of the back surface portion 32 is opened in the covering cutting tool 20, the core material 10 is fixed even when the upper end and the lower end of the core material 10 are fixed to a ceiling, a floor, or the like. Since it can contact | abut to the core material 10 from the side surface side of the core material 10 in the state as it is, when cutting the coating | covering material 12, it is not necessary to remove the core material 10 from a ceiling, a floor, etc. beforehand.

  Next, a method of cutting the covering material 12 using the covering cutting tool 20 of the present embodiment configured as described above will be described in detail with reference to FIG. Here, FIG. 3 is an explanatory diagram for explaining a usage state of the covering cutter 20.

  First, the blade position adjusting rod 50 is rotated in the direction away from the side surface portion 36 around the connecting shaft 34, and the blade 62 is moved to the open position (see FIG. 3A). Next, the coated cutting tool 20 is brought closer to the core material 10 from the side surface direction of the core material 10 covered with the coating material 12 and positioned at a position where both the back surface portion 32 and the guide portion 40 abut. In FIG. 3A, the entire surface of the core material 10 is described as being covered with the covering material 12 as an example. However, even if only a part is covered, the entire surface is covered. In any case, the covering material 12 can be cut by the same operation.

  Subsequently, the blade position adjusting rod 50 is rotated in the direction approaching the side surface portion 36 around the connecting shaft 34, and the blade 62 is moved to the cutting position (see FIG. 3B). At this time, as shown in FIG. 3B, the tip of the blade 62 comes into contact with the surface of the core material 10, and the top surface of the blade unit 60 comes into contact with the surface of the coating material 12. By doing so, the covering material 12 is positioned at the three points of the top surface of the blade unit 60, the back surface portion 32, and the guiding portion 40, and when cutting the covering material 12, it is positioned with high stability at a suitable position. Can do.

  When the base member 30 is moved in the traveling direction in this state, the tip of the blade 62 moves along the surface of the core material 10, and the coating material 12 is cut by the blade 62. At this time, when the main body 30 is moved in the traveling direction, the blade 62 is subjected to a force in a direction away from the core member 10 as the main body 30 moves. Since the blade 62 is pressed in the direction approaching the core member 10 by the blade position adjusting rod 50, the tip position of the blade 62 is adjusted even when the main body 30 is moved in the traveling direction by adjusting the pressing force. It can be easily positioned at a position along the surface of the core material 10. In other words, the covering material 12 can be easily cut.

  After the base member 30 is thus moved to a desired position and the covering material 12 for cutting the covering material 12 is cut, the blade position adjusting rod 50 is rotated in a direction away from the base member 30 about the connecting shaft 34. Then, the blade position adjusting rod 50 is moved from the cutting position (see FIG. 3B) to the open position (see FIG. 3A), and the base member 30 is moved away from the side surface of the core member 10, thereby covering and cutting. The tool 20 can be detached from the core material 10.

  According to the coated cutting tool 20 of the first embodiment described in detail above, the coated cutting tool 20 abuts the back surface portion 32 and the guide portion 40 on the core material 10 from the side surface direction of the core material 10, and the blade position adjusting rod 50. Thus, the tip of the blade 62 is brought into contact with the surface of the core material 10. In this state, when the base member 30 is moved in the traveling direction, the blade 62 moves along the surface of the core material 10, so that both ends of the core material 10 are fixed to a wall, a floor, a ceiling, etc. and opened. Even if it is not a state, the covering material 12 covered on the surface of the core material 10 can be easily cut without removing the core material 10 in advance.

  At this time, since the core material 10 is held from both sides by the circumferential surface of the disc-shaped guide portion 40 and the tip end portion of the blade 62, even if the core material 10 is not straight, The material 10 can be positioned at the cutting position. Furthermore, since the position of the blade 62 is positioned so as to be rotatable by the blade position adjusting rod 50, the position of the blade edge changes along the curved surface of the core material 10, for example, the core material 10 is a copper U-shaped tube. Even in a bent state such as the above, the covering material 12 can be easily cut.

  In addition, since the guide portion 40 is a substantially columnar member and is attached to be rotatable in the moving direction by the rotation shaft 39, when the base member 30 is moved in the traveling direction, the guiding member 40 is guided along with the movement of the core member 10. The part 40 can rotate. Therefore, since the frictional force between the guiding portion 40 and the covering material 12 can be reduced as compared with the case where the guiding portion 40 does not rotate, the labor when moving the core material 10 can be reduced.

  Further, since the blade unit 60 has a blade 62 on the top surface, and this top surface is in contact with a part of the coating material 12, the coating material 12 includes the top surface of the blade unit 60, the back surface portion 32, and the guide. It will be supported at three points of the portion 40. Therefore, compared with the case where it is supported at the two points of the back surface portion 32 and the guide portion 40, the stability when moving the coated cutting tool 20 is improved, and the covering material 12 can be more easily cut.

  Next, the structure of the covering cutting tool 120 which is the 2nd Embodiment of this invention is demonstrated in detail using FIG. Here, FIG. 4 is a side view illustrating the outline of the configuration of the covering cutter 120. Moreover, about the member similar to the covering cutting tool 20 which is 1st Embodiment, the same number is attached | subjected and description is abbreviate | omitted. As shown in FIG. 4, the coated cutting tool 120 according to the second embodiment includes a first side surface portion 80 and a second side surface portion 90 that are rotatably connected by a side surface connecting shaft 100. A space capable of supporting the core member 10 is provided between the second side surface portion 90 and the second side surface portion 90. The covering cutting tool 120 cuts the covering material 12 covered by the core material 10 by moving it in the longitudinal direction of the core material 10 while supporting the core material 10.

  As shown in FIG. 4, the first side surface portion 80 is a metal member, has a blade 62 and passes through the first side surface portion 80, and blade position adjustment for adjusting the position of the blade unit 60. A rod 50 and two pairs of guide portions 40 (see FIG. 5) that support the core member 10 or the covering member 12 are provided. Since the guiding portion 40 and the blade 62 are provided in the same direction, the covering material 12 can be cut by the blade 62 while the guiding portion 40 supports the core material 10 or the covering material 12. The blade position adjusting rod 50 is rotatably attached to the first side surface portion 80 by a connecting shaft 34 provided on one end side. Further, the blade unit 60 includes a blade 62 on one end side, and the other end side is connected to a blade position adjustment spring 86, and the blade position adjustment spring 86 attaches the blade unit 60 in the direction of the blade position adjustment rod 50. It is fast. For this reason, the position of the blade 62 can be moved by rotating the blade position adjusting rod 50.

  Since the second side surface portion 90 has the same configuration as that of the first side surface portion 80 except that the blade unit 60 in the first side surface portion 80 is changed to the blade unit 160, the description thereof is omitted here.

  Next, a method for cutting the covering material 12 using the covering cutting tool 120 will be described in detail with reference to FIGS. Here, FIG. 5 is an explanatory diagram for explaining the movement of the guide portion 40 of the coated cutting tool 120 in the second embodiment, and FIG. An unsupported state (open position) is shown, and FIG. 5B shows a state in which the core member 10 is supported by the coated cutting tool 120. FIG. 6 is an explanatory diagram for explaining the movement of the blade of the coated cutting tool 120 according to the second embodiment. In FIG. 6A, the blade 62 and the second blade 162 are the covering material 12. 6B shows a state where the tips of the blade 62 and the second blade 162 are in contact with the core member 10 (cutting position).

  When the covering material 12 is cut using the covering material cutting tool 120, as shown in FIG. 5, the first side surface portion 80 and the second side surface portion 90 are connected to each other with the side surface connecting shaft 100 as a rotation axis. Turn away. When the first side surface portion 80 and the second side surface portion 90 are rotated, as the first side surface portion 80 and the second side surface portion 90 are rotated, the two pairs of guide portions 40 and the regulating member 84 provided respectively. The blade unit 60 and the blade unit 160 are also moved away. Due to the space generated in this way, the core member 10 can be introduced into the space between the first side surface portion 80 and the second side surface portion 90 (see FIG. 5A).

  After positioning the core material 10 in the space between the first side surface portion 80 and the second side surface portion 90, the first side surface portion 80 and the second side surface portion 90 are moved closer to each other with the side surface connecting shaft 100 as a rotation axis. Turn to. At this time, since the first side surface portion 80 and the second side surface portion 90 have the regulating members 84 that come into contact with each other at a position where they are substantially parallel to each other, the first side surface portion 80 and the second side surface portion 90 are substantially parallel when rotated in the directions approaching each other. It is possible to prevent the situation from approaching. In other words, it is possible to prevent the core material 10, the blade 62, the second blade 162, and the like from being damaged by applying excessive force due to excessive rotation of the first side surface portion 80 and the second side surface portion 90. .

  At this time, with the rotation of the first side surface portion 80 and the second side surface portion 90, the two sets of guide portions 40 move, and the cutting position for contacting the surface of the core material 10 to cut the covering material 12 The position of the core material 10 is positioned. By doing so, the core member 10 can be easily positioned at the cutting position by a simple operation of rotating the first side surface portion 80 and the second side surface portion 90. After positioning the core material 10 at the cutting position in this way, the blade 62 and the second blade 162 are brought into contact with the surface of the core material 10 to cut the covering material 12.

  Next, an operation for cutting the covering material 12 using the blade 62 will be described in detail with reference to FIG. As shown in FIG. 6A, the blade 62 and the covering material 12 are not in contact with each other when the first side surface portion 80 and the second side surface portion 90 are rotated to a substantially parallel position. Therefore, there is no possibility that the covering material 12 is damaged. When cutting the covering material 12, the blade position adjusting rod 50 is rotated in a direction approaching the core material 10 with the connecting shaft 34 as a rotation axis. At this time, as the blade position adjusting rod 50 rotates, the blade unit 60 is pressed via the blade position adjusting spring 86, so that the blade 62 moves in the direction of the core member 10.

  When the tip of the blade 62 moves to a position where it comes into contact with the core material 10, the core material 10 is made of a material harder than the coating material 12. For example, if the core material is made of metal such as iron or copper, the blade 62 cutting edges are locked by the core member 10. In this state, when the base member 30 is moved in the traveling direction, the blade 62 is also moved along the surface of the core material 10, and the covering material 12 covering the surface of the core material 10 is cut. By doing so, the covering material 12 can be cut by a simple operation of rotating the blade position adjusting rod 50 and moving the main body 30 in the traveling direction.

  Here, the operation when the second blade 162 cuts the coating material 12 is the same as the operation when the coating material 12 is cut by the blade 62 except that the blade 62 is changed to the second blade 162. The description is omitted. At this time, since the blades 62 and the second blades 162 are arranged at substantially straight positions with the core member 10 in between (see FIGS. 4 and 6), the covering material 12 is removed by the covering cutting tool 120. When cut, the covering material 12 is cut into two. For this reason, compared with the case where the second blade 162 is not provided, the cut covering material 12 can be easily detached from the core material 10.

  Next, an operation when the core material 10 is detached from the coating cutting tool 120 after the coating material 12 is cut will be described. After cutting the covering material 12, as shown in FIG. 6B, the blade 62 and the second blade 162 are in contact with the core material 10, respectively. Therefore, first, the blade position adjusting rod 50 is rotated in the direction away from the core material 10 with the connecting shaft 34 as the rotation axis, and the core material 10 is moved from the blade 62 and the second blade 162 as shown in FIG. Leave it open.

  In the state of FIG. 6A, the core material 10 is released from the blade 62 and the second blade 162, but as shown in FIG. 5B, the core material 10 is supported by the guide portion 40. Yes. Therefore, the first side surface portion 80 and the second side surface portion 90 are rotated in directions away from each other using the side surface connecting shaft 100 as a rotation axis. At this time, with the rotation of the first side surface portion 80 and the second side surface portion 90, the guiding portion 40 also rotates, and the core material 10 is detached from the guiding portion 40 and is in a freely movable state. Become. By doing so, the core member 10 can be detached by a simple operation of rotating the blade position adjusting rod 50, the first side surface portion 80, and the second side surface portion 90.

  According to the coated cutting tool 120 of the second embodiment described in detail above, the coated cutting tool 120 has four directions toward the core material 10 when the core material 10 is introduced into the space inside the coated cutting tool 120. The position of the core member 10 is positioned by the guide member 40 that comes into contact with each other, and the tips of the blades 62 and the second blade 162 are brought into contact with the surface of the core member 10 with the blade position adjusting rod 50. In this state, the blade 62 and the second blade 162 are moved along the surface of the core member 10 that moves the base member 30 in the traveling direction, so that both ends of the core member 10 are placed on a wall, floor, ceiling, or the like. Even if it is fixed, the covering material 12 covered on the surface of the core material 10 can be easily cut without removing the core material 10 in advance.

  At this time, since the core material 10 is supported by the respective circumferential surfaces of the disc-shaped guide portion 40, the distal ends of the blade 62 and the second blade 162, the core material 10 is not a straight core. Even if it is a material, the core material 10 can be positioned at a cutting position. Furthermore, since the positions of the blade 60 and the second blade 162 are positioned so as to be rotatable by the blade position adjusting rod 50, the position of the blade edge is changed along the curved surface of the core material 10, for example, the core material 10 is made of copper. Even when the U-shaped tube or the like is bent, the covering material 12 can be easily cut.

  Moreover, since the covering cutting tool 120 can adjust the position of the guidance | induction part 40 by rotating the 1st side surface part 80 and the 2nd side surface part 90 by making the side surface connection axis | shaft 100 into a rotating shaft, a guidance | induction part Compared with the case where the position of 40 is fixed, it is easy to introduce the core material 10 into the covering cutting tool 120.

  Furthermore, since the regulation member 84 is provided, the first side surface portion 80 and the second side surface portion 90 can be prevented from being closer than the substantially parallel position. The possibility that the blade 162 and the like are damaged can be reduced in advance.

  Furthermore, the first side surface portion 80 and the second side surface portion 90 each adjust the position of the guide portion 40 by rotating about the side surface connecting shaft 100 as a rotating shaft, and the blade position adjusting rod 50 is connected to the connecting shaft 34. Since the positions of the blade 62 and the second blade 162 are adjusted by rotating around the center, the positions of the contact member 40 or the blade 62 and the second blade 162 can be adjusted by a simple operation called a rotation operation. .

  Further, since the connecting shaft 34 is provided so as to be connected to the first side surface portion 80 and the second side surface portion 90, the blade position adjusting rod is rotated with the rotation of the first side surface portion 80 and the second side surface portion 90. 50 also rotates. By doing so, the blade 62 can be moved to the surface position of the core material 10 by operating the blade position adjusting rod 50 after positioning the core material 10 with the first side surface portion 80 and the second side surface portion 90. Therefore, the position of the blade 62 can be adjusted more easily. Moreover, since the blade position adjusting rod 50 also rotates with the rotation of the first side surface portion 80 and the second side surface portion 90, the labor can be further reduced as compared with the case of rotating separately.

  Further, when the core material 10 is supported, since the guide portions 40 are provided at substantially the same distance in the four directions of the core material 10, the core material 10 can be supported evenly from the four directions. it can. By doing so, the position of the core material 10 can be more reliably positioned at the cutting position, so that the covering material 12 covered with the core material 10 can be more easily cut.

  It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that the present invention can be implemented in various modes as long as it belongs to the technical scope of the present invention.

  For example, in the first embodiment described above, the surface of the covering material 12 is supported at the three points of the back surface 32, the guide portion 40, and the top surface of the blade unit 60, but as shown in FIG. The shape of the side surface portion 36 may be a substantially “<” shape, and two guide portions 40 may be provided. In this case, the surface of the covering material 12 is supported at the three points of the two guide portions 40 and the top surface of the blade unit 60. By carrying out like this, compared with the case where it supports by the back part 32, since the stability at the time of supporting the core material 10 improves more, the movement of the covering cutting tool 20 can be made easier. In other words, the covering material 12 can be cut with less labor.

  In the first embodiment described above, there is one blade unit 60. However, as shown in FIG. 8, the blade unit 60 has a second blade unit 160 that is the same blade unit as the blade unit 60. Also good. By doing so, the covering material 12 is cut into two cut pieces by the blade 62 and the second second blade 162, so that the covering material 12 is detached from the surface of the core material 10 as compared with the case of one blade. Labor can be reduced.

  In the first embodiment described above, the surface of the covering material 12 is supported at the three points of the back surface 32, the guide portion 40, and the top surface of the blade unit 60. However, as shown in FIG. The guide unit 40, the top surface of the blade unit 60, and the top surface of the second blade unit 160 may be supported at four points. In this way, the position of the core material 10 can be more reliably positioned as compared with the case of supporting at three points. Furthermore, since the blade 62 and the second second blade 162 are cut into two pieces, the labor for detaching the covering material 12 from the surface of the core material 10 can be reduced as compared with the case where there is only one blade. it can

  At this time, as shown in FIG. 10, the position of the blade edge in the blade unit 60 and the position of the blade edge in the blade unit 160 may be located on a substantially straight line including the diameter of the core material 10. By doing so, since the covering material 12 is divided into two when the core material 10 is cylindrical, the covering material 12 can be more easily detached from the core material 10.

  In the first embodiment described above, one guiding portion 40 is provided on the side surface portion 36, but a plurality of (for example, two) guiding portions 40 may be provided as shown in FIG. . By doing so, since the covering material 12 can be supported at a plurality of locations, the core material 10 can be positioned at a more appropriate position.

  In the first embodiment described above, the blade unit 60 is fixed to the blade position adjusting rod 50. However, in addition to the blade unit 60, as shown in FIG. The claw member 70 may be provided at a position behind the blade unit 60 and in contact with the cut surface of the covering material 12 cut by the blade 62. In this way, after the covering material 12 is cut by the blade 62, the cut surface of the covering material 12 comes into contact with the claw member 70 with the movement of the covering cutting tool 20, and the cut surface of the covering material 12 is cut by the claw member 70. They will be kept away from each other. By doing so, it is possible to easily detach the covering material 12 from the core material 10 as compared with the case where the claw member 70 is not provided.

  In the embodiment described above, when the blade position adjusting rod 50 is positioned at the cutting position, the tip of the blade 62 is positioned near the surface of the core material 10, and the top surface of the blade unit 60 is on the surface of the covering material 12. Although the contact is made, the covering material 12 and the top surface of the blade unit 60 may not contact each other. In this case, since the tip of the blade 62 comes into contact with the surface of the core material 10, it is possible to adjust the distance between the blade edge and the top surface of the blade unit 60 in accordance with the thickness of the covering material 12. The same effects as those of the embodiment described above can be obtained.

  In the above-described embodiment, the guide portion 40 has a substantially disc shape and can be rotated in the moving direction. However, the guide portion 40 has a substantially spherical shape and can freely rotate (for example, a ball caster or the like). ). In this way, the same effect as the above-described embodiment can be obtained while improving the freedom of movement of the core material 10.

  In the embodiment described above, the guide portion 40 has a substantially disc shape, but the surrounding circumferential portion may have an inclination in the center direction from the outer edge portion toward the center direction. In this way, when the cross section of the core material 10 and the covering material 12 is substantially circular, the installation area of the circumferential portion and the covering material 12 increases, so that the core material 10 can be positioned more reliably. .

  In the embodiment described above, the blade 62 is a double blade, but may be a single blade. Also in this case, the same effect as the above-described embodiment can be obtained.

  As shown in the embodiment described above, the present invention can be used as an apparatus for removing a resin covering a surface of a coating removal field, particularly a copper pipe or an iron pipe.

DESCRIPTION OF SYMBOLS 10 ... Core material, 12 ... Coating | covering material, 20 ... Coated cutting tool, 30 ... Base member, 32 ... Back surface part, 34 ... Connecting shaft, 36 ... Side surface part, 38 ... Through-hole, 39 ... Rotating shaft, 40 ... Guide part , 50 ... Blade position adjusting rod, 52 ... Screw, 60 ... Blade unit, 62 ... Blade, 70 ... Claw member, 80 ... First side part, 84 ... Restricting member, 86 ... Blade position adjusting spring, 90 ... Second side face 100, side connecting shaft, 120, coated cutting tool, 160, second blade unit, 162, second blade.

Claims (11)

A cutting tool for cutting a covering material covering at least a part of the long core material,
A blade for cutting the covering material;
An abutting member having a convex or curved support portion that supports the core material or the covering material;
In a state where the core material or the covering material is supported by the contact member, the blade is moved from a contact position where the blade contacts the core material to an open position where the core material can be detached from the support portion. A blade position adjusting member to be
A base member for positioning the contact member and the blade position adjusting member;
With
Coated cutting tool. The contact member rotates in the moving direction of the core;
The coated cutting tool according to claim 1. The coated cutting tool according to claim 1 or 2,
A blade member having the blade on the top surface, the top surface being able to contact a part of the covering material;
With
Coated cutting tool. It is a covering cutting tool given in any 1 paragraph of Claims 1-3,
A contact position adjusting member for changing the position of the contact member;
With
Coated cutting tool. The coated cutting tool according to claim 4,
A regulating member for regulating the approach of the contact node position adjusting member to the core member at a predetermined position;
With
Coated cutting tool. The contact position adjusting member adjusts the position of the contact member by rotating about a first rotation shaft provided on one end side,
The blade position adjusting member adjusts the position of the blade by rotating around a second rotating shaft provided on one end side;
The coated cutting tool according to claim 4 or 5. The second rotating shaft is provided on the contact position adjusting member.
The coated cutting tool according to claim 6. It is a covering cutting tool given in any 1 paragraph of Claims 1-7,
A second blade that is positioned substantially on a straight line across the blade and the core;
Comprising
Coated cutting tool. A plurality of the contact members are provided in parallel in the long handle direction of the core material,
The covering cutting tool of any one of Claims 1-8. In the covering cutting tool according to any one of claims 1 to 9,
A claw member that is in contact with the cutting surface of the covering material cut by the blade and is located rearward of the blade with respect to the movement direction of the base member;
With
Coated cutting tool. When the core member or the covering material is supported by the corresponding contact member, four of the contact members are provided in four directions at substantially the same distance from the core material.
The covering cutting tool of any one of Claims 1-10.

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