JP6400786B1 - Coating resin peeling tool and coating resin peeling method - Google Patents

Abstract

The present invention provides a coated resin stripping tool capable of easily cutting a coated resin of a resin coated rope.
According to one embodiment, a coated resin peeling tool includes a rope holding part, a movable part, and a cutting means holding part. The rope holding part is configured to hold the resin-coated rope so as to be movable in the extending direction of the resin-coated rope. The movable part is connected to the rope holding part so as to be movable with respect to the rope holding part. The cutting means holding part is configured to hold a cutting means having a blade movable with respect to the resin-coated rope held by the rope holding part, and a heating part capable of heating the blade, It is provided in the rope holding part or the movable part. The movable part moves the blade heated by the heating part to a first position located outside the coating resin of the resin-coated rope and a second position entering the inside of the coating resin. It is possible to make it.
[Selection] Figure 1

Description

  Embodiments described herein relate generally to a coating resin peeling tool and a coating resin peeling method.

  The two ropes can be connected to each other by separating the strands and strands and knitting the strands or strands.

JP 2001-080827 A

  As the rope, a resin-coated rope whose outer periphery is covered with a resin is known. When two resin-coated ropes are connected to each other, a large man-hour may be required to remove the covering portion and expose the strands and the strands.

  The coated resin peeling tool according to one embodiment includes a rope holding part, a movable part, and a cutting means holding part. The rope holding part is configured to hold the resin-coated rope so as to be movable in the extending direction of the resin-coated rope. The movable part is connected to the rope holding part so as to be movable with respect to the rope holding part. The cutting means holding part is configured to hold a cutting means having a blade movable with respect to the resin-coated rope held by the rope holding part, and a heating part capable of heating the blade, It is provided in the rope holding part or the movable part. The movable part moves the blade heated by the heating part to a first position located outside the coating resin of the resin-coated rope and a second position entering the inside of the coating resin. It is possible to make it.

FIG. 1 is a perspective view showing a covered rope and a tool according to the first embodiment. FIG. 2 is a side view showing the covered rope and the tool of the first embodiment. FIG. 3 is a perspective view showing the knife of the first embodiment. FIG. 4 is a perspective view showing an example of a covered rope provided with a groove according to the first embodiment. FIG. 5 is a perspective view showing a covered rope from which a part of the covering resin according to the first embodiment is peeled off. FIG. 6 is a perspective view illustrating the covering rope, the tool, and the adapter according to the first embodiment. FIG. 7 is a side view partially showing the covering rope, the tool, and the adapter according to the first embodiment as a cross-sectional view. FIG. 8 is a side view showing a covered rope and a tool according to the second embodiment. FIG. 9 is a side view showing a covered rope and a tool according to a modification of the second embodiment. FIG. 10 is a side view showing a covered rope and a tool according to the third embodiment.

(First embodiment)
The first embodiment will be described below with reference to FIGS. 1 to 7. In the present specification, a plurality of expressions may be described for the constituent elements according to the embodiment and the description of the elements. The constituent elements and descriptions in which a plurality of expressions are made may be other expressions that are not described. Further, the constituent elements and descriptions that are not expressed in a plurality may be expressed in other ways that are not described.

  FIG. 1 is a perspective view showing a resin-coated rope (hereinafter referred to as a coated rope) 1 and a coated resin stripping tool (hereinafter referred to as a tool) 2 according to the first embodiment. FIG. 2 is a side view showing the covered rope 1 and the tool 2 according to the first embodiment.

  The resin-coated rope 1 is, for example, a wire rope used for winding up an elevator car. In addition, the resin-coated rope 1 is not limited to this example, and may be used as a governor rope or a rope used for an application different from an elevator. As shown in FIG. 1, the covered rope 1 includes a rope 11 and a covering resin 12. The coating resin 12 may be simply referred to as a coating.

  The rope 11 has a core rope 15 and a plurality of strands 16. The strand 16 may be referred to as a steel wire, for example. Each of the core rope 15 and the strand 16 is formed of a plurality of metal strands (wires). The plurality of strands 16 are wound around the core rope 15.

  The covering resin 12 is made of, for example, a synthetic resin and covers the outer periphery of the rope 11. The coating resin 12 may cover the outer periphery of each strand 16. The covering resin 12 forms the outer peripheral surface 1 a of the covering rope 1.

  The tool 2 includes a rope holding part 21, a movable part 22, a knife 23, and a knife holding part 24. The rope holding part 21 can also be called a cylinder part, for example. The movable unit 22 can also be referred to as an arm, a lever, or an operation unit, for example. The knife 23 is an example of a cutting means, and may be referred to as a tool, for example. The knife holding part 24 is an example of a cutting means holding part, and may be referred to as a fixing part, for example.

  The rope holding part 21 is formed in a substantially cylindrical shape. The rope holding part 21 may be formed in other shapes. The rope holding part 21 is provided with an insertion hole 31 and an exposure port 32. The exposure port 32 can also be referred to as an opening, for example.

  The insertion hole 31 is a substantially circular hole provided inside the substantially cylindrical rope holding portion 21. The insertion hole 31 has, for example, an inner diameter slightly larger than the outer diameter of the covered rope 1, and the covered rope 1 is passed therethrough. For this reason, the insertion hole 31 extends in the extending direction (longitudinal direction) of the covered rope 1.

  The rope holding portion 21 is attached to the covered rope 1 by passing the covered rope 1 through the insertion hole 31. According to another expression, the rope holding part 21 holds the covered rope 1. The rope holding portion 21 is movable in the extending direction of the covered rope 1 with respect to the covered rope 1 passed through the insertion hole 31. In the present embodiment, the left-right direction in FIG. 2 is the extending direction of the covered rope 1. In addition, the extending | stretching direction of the covering rope 1 may be the direction bent in circular arc shape, for example.

  The exposure port 32 is, for example, a hole that extends in the radial direction of the covered rope 1 and communicates with the insertion hole 31. The radial direction is a direction orthogonal to the stretching direction. The exposure port 32 may extend in another direction that intersects the extending direction.

  As shown in FIG. 1, the rope holding part 21 has a front end surface 21a, a rear end surface 21b, an inner surface 21c, and an outer surface 21d. The front end surface 21a and the rear end surface 21b are both ends of the rope holding portion 21 in the extending direction. The insertion hole 31 opens in the front end surface 21a and the rear end surface 21b.

  The inner surface 21 c is a substantially cylindrical surface extending in the extending direction, and defines the insertion hole 31. The outer surface 21d is located on the opposite side of the inner surface 21c. The exposure port 32 opens to the inner surface 21c and the outer surface 21d. The exposure port 32 is provided, for example, at a position closer to the front end surface 21a than to the rear end surface 21b.

  The rope holding part 21 has an inner cylinder 35 and an outer cylinder 36. The inner cylinder 35 is made of metal, for example. The outer cylinder 36 is made of a material (heat insulating material) having a lower thermal conductivity than the inner cylinder 35, such as a synthetic resin. The inner cylinder 35 forms the inner surface 21c. A part of the inner cylinder 35 and the outer cylinder 36 form an outer surface 21d. That is, a part of the outer surface 21d of the rope holding portion 21 is formed of a heat insulating material. The rope holding part 21 is not limited to this example.

  The rope holding portion 21 further includes a column portion 38 and an arm shaft 39. The column part 38 protrudes from the outer surface 21d of the inner cylinder 35 in the radial direction, for example. The column part 38 protrudes in the direction in which the exposure port 32 extends with respect to the insertion hole 31, for example. For this reason, the column part 38 and the exposure port 32 are arranged in the extending | stretching direction. The column portion 38 is formed integrally with the inner cylinder 35 by being welded to the outer surface 21d, for example. The arm shaft 39 is provided on the column portion 38 at a position separated from the outer surface 21d.

  The movable part 22 includes an arm 41, a grip 42, and a pin 43. The arm 41 is made of, for example, metal and is formed in a rod shape. A notch 41 a is provided at the end of the arm 41 in the longitudinal direction. The column part 38 is arrange | positioned inside the notch 41a. For this reason, the column part 38 is located between the two convex parts 41b of the arm 41 forming the notch 41a.

  Each of the two convex portions 41b is provided with a hole 41c. The arm 41 is attached to the arm shaft 39 by inserting the arm shaft 39 into the hole 41c. The arm 41 is disposed so as to cover the exposure port 32 at a position separated from the rope holding portion 21. According to another expression, the exposure port 32 opens toward the arm 41.

  The arm 41 is attached to the arm shaft 39 so as to be rotatable about the arm shaft 39. For this reason, the movable part 22 is connected to the arm shaft 39 of the rope holding part 21 so as to be movable with respect to the rope holding part 21. In addition, the movable part 22 may be linearly movable with respect to the rope holding part 21, for example.

  When the arm 41 is pivotally attached to the arm shaft 39, the movable portion 22 is movable in a first direction D1 and a second direction D2 indicated by arrows in FIG. The first direction D <b> 1 is a direction in which the movable portion 22 approaches the rope holding portion 21. The second direction D2 is a direction opposite to the first direction D1 and is a direction away from the rope holding portion 21. The first direction D1 and the second direction D2 are not limited to this example.

  The grip 42 covers at least a part of the arm 41. The grip 42 is made of a material (heat insulating material) having a lower thermal conductivity than the arm 41, such as a synthetic resin. The grip 42 and the outer cylinder 36 of the rope holding part 21 are arranged in the radial direction with a gap therebetween.

  The pin 43 is made of a material having high heat resistance such as metal. The pin 43 protrudes from the arm 41 toward the exposure port 32 and is formed in a columnar shape, for example. The pin 43 is formed integrally with the arm 41 by being welded to the arm 41, for example. In the present embodiment, the pin 43 is located between the grip 42, the hole 41 c of the arm 41, and the arm shaft 39.

  FIG. 3 is a perspective view showing the knife 23 of the first embodiment. The knife 23 includes a handle 51, a heating unit 52, a connection unit 53, a blade 54, a knife shaft 55, and a cable 56. The knife 23 is, for example, an electric heating knife (hot knife) and can heat the blade 54. Note that the knife 23 is not limited to one manufactured as an electric heating knife, and may be, for example, a modified device on which heating means such as a soldering iron is mounted.

  The handle 51 is formed in a substantially cylindrical shape. The handle 51 may be formed in other shapes. The surface of the handle 51 is made of, for example, a material (heat insulating material) having a lower thermal conductivity than the connection portion 53 and the blade 54, such as a synthetic resin.

  The heating unit 52 is, for example, a nichrome wire heater or a ceramic heater, and is provided inside the handle 51. The heating unit 52 generates heat when energized. Note that the heating unit 52 is not limited to this example, and may generate heat by gas, for example.

  The connection portion 53, the blade 54, and the knife shaft 55 are made of a material having high heat conductivity and high heat resistance such as metal. The connecting portion 53 extends from the handle 51. A notch 53 a is provided at the end of the connecting portion 53 in the longitudinal direction. A blade 54 is disposed inside the notch 53a. For this reason, the blade 54 is located between the two convex portions 53b of the connection portion 53 that forms the notch 53a.

  Each of the two convex portions 53b is provided with a hole 53c. By inserting the knife shaft 55 into the hole 53c, the blade 54 is attached to the connection portion 53 so as to be rotatable about the knife shaft 55. The knife shaft 55 may be formed integrally with the blade 54 or may be inserted into a hole provided in the blade 54.

  The blade 54 has a base portion 54a and an edge portion 54b. The base 54a extends in a substantially plate shape. One end in the longitudinal direction of the base portion 54 a is connected to the connection portion 53 by the knife shaft 55. For this reason, the blade 54 extends from the connection portion 53.

  The edge portion 54b protrudes from the base portion 54a in a direction intersecting with the direction in which the base portion 54a extends at a position separated from the connection portion 53. The edge part 54b is arrange | positioned along an extending | stretching direction. The edge portion 54b is formed in a substantially semicircular shape. The edge portion 54b may be formed in other shapes. The tip of the edge portion 54b is rounded (crushed), but may be sharpened.

  The blade 54 further has a side surface 54c. Further, the connecting portion 53 further has an inner side surface 53d that forms a part of the notch 53a. The side surface 54c and the inner side surface 53d face each other and face each other. Thereby, the connection part 53 and the blade 54 are thermally connected. Note that the connecting portion 53 and the blade 54 are also thermally connected via the knife shaft 55.

  The cable 56 extends from the handle 51 in the direction opposite to the connecting portion 53, for example. The cable 56 is connected to a power source such as a battery or an outlet. The heating unit 52 is supplied with power from the power source via the cable 56.

  The heating part 52 generates heat when energized, and heats the connection part 53. The heat of the heating unit 52 is conducted from the connection unit 53 to the blade 54 via the inner side surface 53 d and the side surface 54 c or the knife shaft 55. As described above, the heating unit 52 can heat the blade 54. The contact area between the blade 54 and the connection portion 53 is set so that heat is sufficiently conducted from the connection portion 53 to the blade 54.

  As shown in FIG. 1, the knife holder 24 removably fixes the knife 23 to the rope holder 21. According to another expression, the knife holding unit 24 is provided in the rope holding unit 21 and holds the knife 23. The knife holding unit 24 includes a knife base 61 and a fixed band 62.

  The knife base 61 is attached to the rope holding part 21 so as to protrude from the outer surface 21d. For example, the knife base 61 protrudes in the direction in which the exposure port 32 extends with respect to the insertion hole 31. For this reason, the knife base 61 and the exposure port 32 are arranged in the extending direction. The knife base 61 is provided with a recess 61a. The handle 51 of the knife 23 is fitted into the recess 61a.

  The fixed band 62 is, for example, a substantially annular binding machine. The fixing band 62 binds the knife 23 fitted into the recess 61 a and the rope holding part 21, and fixes the knife 23 to the rope holding part 21.

  The knife holding part 24 restrict | limits that the knife 23 moves to an extending | stretching direction, a radial direction, and the circumferential direction. The circumferential direction is a direction rotating around the covered rope 1 as a central axis. The knife 23 held by the knife holder 24 may be slightly movable in at least one of the stretching direction, the radial direction, and the circumferential direction.

  The fixing band 62 may be, for example, a synthetic rubber ring or a metal ring that can be opened and closed by a hinge or the like. Further, the knife holding unit 24 may fix the knife 23 to the knife base 61 with screws. As described above, the knife holding unit 24 is not limited to the knife base 61 and the fixed band 62, and may include other elements that can fix the knife 23 to the rope holding unit 21.

  As shown in FIG. 2, for example, the knife base 61 is provided at a position closer to the rear end surface 21 b than to the front end surface 21 a of the rope holding portion 21. The knife base 61 is located between the rear end surface 21b and the exposure port 32 in the extending direction. The knife 23 is held by the knife base 61 at a position closer to the rear end surface 21b than to the front end surface 21a.

  The knife holding unit 24 holds the knife 23 between the rope holding unit 21 and the movable unit 22. The handle 51 is located between the outer cylinder 36 and the grip 42. The blade 54 is located between the pin 43 and the exposure port 32. The pin 43 projects from the arm 41 toward the base portion 54 a of the blade 54 of the knife 23 held by the knife holding portion 24.

  When the movable portion 22 is rotated in the first direction D1, the pin 43 contacts the base portion 54a of the blade 54. When the movable portion 22 is further rotated in the first direction D <b> 1, the movable portion 22 pushes the blade 54 toward the exposure port 32. The pushed blade 54 is rotated about the knife shaft 55 and moves toward the inside of the insertion hole 31 through the exposure port 32. Thus, the movable part 22 pushes down the blade 54 by being moved in the first direction D1.

  For example, in an elevator, an old covered rope 1 and a new covered rope 1 are exchanged. At this time, a part of the covering resin 12 of the covering rope 1 is peeled off (removed) using the tool 2. Hereinafter, an example of stripping the coating resin 12 using the tool 2 will be described. In addition, the peeling method of the coating resin 12 using the tool 2 is not restricted to the example demonstrated below.

  FIG. 4 is a perspective view showing an example of the covered rope 1 provided with the groove 12a of the first embodiment. The tool 2 cuts (breaks) a part of the coating resin 12 to form a groove 12 a in the coating resin 12. The groove 12 a is a cut extending from the end portion 1 b in the extending direction of the covered rope 1 to a position separated in the extending direction and reaching from the outer peripheral surface 1 a of the covered rope 1 to the rope 11. The groove 12a extends in the extending direction, but may extend in a spiral shape, for example. Further, the groove 12 a may be separated from the rope 11. This will be specifically described below.

  First, as shown in FIG. 1, the knife holding unit 24 holds the knife 23. For example, when the handle 51 of the knife 23 is fitted into the recess 61a of the knife base 61, the blade 54 is disposed between the exposure port 32 and the pin 43, and the edge portion 54b is disposed in the extending direction. 23 is positioned. In this state, the fixing band 62 fixes the knife 23 to the rope holding portion 21.

  Next, the covered rope 1 is passed through the insertion hole 31 of the rope holding portion 21. For example, the end portion 1 b of the covering rope 1 is inserted into the insertion hole 31 from the opening end of the insertion hole 31 that opens to the front end surface 21 a of the rope holding portion 21. As the covered rope 1 advances through the insertion hole 31, the covered rope 1 comes out of the insertion hole 31 from the opening end of the insertion hole 31 that opens in the rear end face 21 b.

  The covered rope 1 is held by the rope holding portion 21 by being passed through the insertion hole 31. When the covered rope 1 is held by the rope holding portion 21, the blade 54 faces the outer peripheral surface 1 a of the covered rope 1 through the exposure port 32.

  The rope holding part 21 is advanced along the covered rope 1 until the blade 54 faces the starting point of the groove 12 a through the exposure port 32. Thereby, the rope holding | maintenance part 21 hold | maintains the covering rope 1 in the state which faces the outer peripheral surface 1a in the position where the blade 54 was spaced apart from the edge part 1b.

  Next, when the knife 23 is energized, the heating unit 52 in FIG. 3 heats the blade 54. The heating unit 52 sets the temperature of the blade 54 higher than the melting point of the coating resin 12. Note that the temperature of the blade 54 may be lower than the melting point of the coating resin 12. The heating unit 52 may heat the blade 54 in advance.

  As shown in FIG. 2, the blade 54 is located between the rope holding part 21 and the movable part 22. For this reason, it is suppressed that the heated blade 54 touches an operator. For example, the operator holds the tool 2 so as to touch the outer cylinder 36 and the grip 42 made of a heat insulating material. For this reason, even if the heating part 52 heats the blade 54, it is suppressed that the part which an operator touches becomes high temperature.

  Next, the movable part 22 is pushed down and moved in the first direction D1 with respect to the covered rope 1 held by the rope holding part 21. For example, the movable portion 22 is moved in the first direction D <b> 1 by the operator grasping the gripping outer cylinder 36 and the grip 42.

  The pin 43 of the movable part 22 moving in the first direction D1 brings the blade 54 close to the outer peripheral surface 1a of the covered rope 1 through the exposure port 32. In other words, the blade 54 is moved with respect to the covered rope 1 held by the rope holding part 21.

  Before the movable part 22 moves, the blade 54 is located at a first position P1 indicated by a two-dot chain line in FIG. In the first position P1, the blade 54 is located outside the covering resin 12 of the covering rope 1. In other words, the blade 54 is separated from the outer peripheral surface 1a of the covering rope 1 at the first position P1. Furthermore, the blade 54 may be located outside the exposure port 32 at the first position P1.

  The blade 54 is moved to the second position P2 indicated by the solid line in FIG. In the second position P2, the blade 54 enters the inside of the coating resin 12. In other words, the blade 54 is pierced into the coating resin 12 at the second position P2. The blade 54 positioned at the second position P2 may be separated from the rope 11 or may contact the rope 11.

  The movable part 22 can move the blade 54 through the exposure port 32 to the first position P1 and the second position P2 described above. The movable portion 22 is moved in the first direction D1, thereby moving the blade 54 from the first position P1 to the second position P2.

  When moving from the first position P1 toward the second position P2, the edge portion 54b of the blade 54 contacts the outer peripheral surface 1a of the covered rope 1 exposed by the exposure port 32. When the edge part 54b of the blade 54 heated by the heating part 52 comes into contact with the outer peripheral surface 1a of the covering rope 1, the coating resin 12 forming the outer peripheral surface 1a is heated.

  The edge portion 54 b melts the coating resin 12 by heating the coating resin 12. When the blade 54 is further moved by the movable portion 22, the edge portion 54 b enters the inside of the coating resin 12 while melting the coating resin 12. In other words, the blade 54 is inserted into the coating resin 12 while melting the coating resin 12.

  When the temperature of the edge portion 54 b is lower than the melting point of the coating resin 12, the edge portion 54 b softens the coating resin 12 by heating the coating resin 12. When the blade 54 is pushed by the movable portion 22, the edge portion 54 b is cut while softening the coating resin 12 and enters the coating resin 12.

  Next, in a state where the blade 54 is located at the second position P2, the rope holding portion 21 is moved along the extending direction toward the end portion 1b of the covered rope 1. For example, the operator pulls the tool 2 toward the end 1 b of the covering rope 1 while holding the outer cylinder 36 and the grip 42.

  By moving the rope holding portion 21, the edge portion 54 b of the blade 54 is moved toward the end portion 1 b of the covering rope 1 while being positioned inside the covering resin 12. The edge portion 54b is cut while heating the coating resin 12 to form the groove 12a. Since the edge portion 54b melts the coating resin 12, the coating resin 12 can be easily cut.

  When the edge portion 54b reaches the end portion 1b, a groove 12a extending in the extending direction from the end portion 1b is formed in the coating resin 12 as shown in FIG. By further pulling the tool 2, the rope holding portion 21 is removed from the covered rope 1.

  The depth of the groove 12a in the radial direction is adjusted by the amount of movement of the movable portion 22 in the first direction D1 of FIG. In other words, the depth of the groove 12a is adjusted by the strength with which the operator grasps the outer cylinder 36 and the grip 42.

  As described above, the tip of the edge portion 54b is rounded. Further, the temperature of the blade 54 is lower than the melting point of the rope 11. For this reason, even if the edge part 54b contacts the rope 11, it is suppressed that the rope 11 is damaged. Even if the edge portion 54b is rounded, the coating resin 12 can be easily cut by being heated.

  Next, the coating resin 12 is cut along the cut portion 12b shown in FIG. The excision location 12b extends in the circumferential direction, for example, from the end of the groove 12a spaced from the end 1b. For example, the knife 23 removed from the knife holding portion 24 cuts the coating resin 12 while melting it along the cut portion 12b. Note that the cut portion 12b may be cut with another tool.

  FIG. 5 is a perspective view showing the covered rope 1 from which a part of the covering resin 12 of the first embodiment has been peeled off. The cut part 12b and the groove 12a are connected to each other. For example, by pulling the cut surface of the coating resin 12 forming the groove 12a in the circumferential direction, the portion of the coating resin 12 between the end portion 1b and the cut portion 12b is peeled off from the rope 11. In this way, part of the covering resin 12 is peeled off, so that the rope 11 is exposed to the outside in the portion from the end 1b of the covering rope 1 to the cut portion 12b.

  Next, the plurality of strands 16 of the exposed rope 11 are separated. The said strand 16 and the strand 16 of the other covered rope 1 are knitted together, and the covered rope 1 and the other covered rope 1 are connected. The old covered rope 1 is wound up and collected, and replaced with a new covered rope 1.

  FIG. 6 is an exploded perspective view showing the covered rope 1, the tool 2, and the adapter 70 of the first embodiment. FIG. 7 is a side view partially showing the covering rope 1, the tool 2, and the adapter 70 of the first embodiment as a cross-sectional view. The rope holding part 21 may have an adapter 70 shown in FIG.

  When the inner diameter of the insertion hole 31 is approximately equal to the outer diameter of the covered rope 1, the covered rope 1 is directly passed through the insertion hole 31 as shown in FIG. 1. On the other hand, when the inner diameter of the insertion hole 31 is smaller than the outer diameter of the covering rope 1 by a predetermined amount or more, the adapter 70 is attached to the insertion hole 31 as shown in FIG.

  As shown in FIG. 6, the adapter 70 is made of, for example, metal and is formed in a substantially cylindrical shape. The adapter 70 is provided with an insertion hole 71 and an exposure port 72.

  The insertion hole 71 is a substantially circular hole provided inside the substantially cylindrical adapter 70. The insertion hole 71 has an inner diameter slightly larger than the outer diameter of the covered rope 1 to which the adapter 70 corresponds, and the covered rope 1 is passed therethrough. For this reason, the insertion hole 71 extends in the extending direction of the covered rope 1.

  The adapter 70 is attached to the covered rope 1 by passing the covered rope 1 through the insertion hole 71. The adapter 70 is movable in the extending direction of the covered rope 1 with respect to the covered rope 1 passed through the insertion hole 71.

  The exposure port 72 is, for example, a notch that extends in the radial direction and communicates with the insertion hole 71. The exposure port 72 may be another opening such as a hole. The exposure port 72 may extend in another direction that intersects the extending direction.

  The adapter 70 has a front end surface 70a, a rear end surface 70b, an inner surface 70c, and an outer surface 70d. The front end surface 70a and the rear end surface 70b are both ends of the adapter 70 in the extending direction. The insertion hole 71 opens in the front end surface 70a and the rear end surface 70b.

  The inner surface 70 c is a substantially cylindrical surface extending in the extending direction, and defines the insertion hole 71. The outer surface 70d is located on the opposite side of the inner surface 70c. The exposure port 72 opens to the rear end surface 70b, the inner surface 70c, and the outer surface 70d.

  The outer diameter of the outer surface 70d is slightly smaller than the inner diameter of the insertion hole 31 of the rope holding portion 21. For this reason, the adapter 70 can be disposed inside the insertion hole 31. As shown in FIG. 7, the adapter 70 in which the covered rope 1 is inserted into the insertion hole 71 is fitted into the insertion hole 31 of the rope holding portion 21. Thereby, the rope holding part 21 having the adapter 70 holds the covered rope 1. The adapter 70 is interposed between the outer peripheral surface 1 a of the covered rope 1 and the inner surface 21 c of the rope holding portion 21.

  The exposure port 72 of the adapter 70 communicates with the exposure port 32 of the rope holding unit 21. For this reason, the exposed holes 32 and 72 of the rope holding part 21 and the adapter 70 expose the outer peripheral surface 1 a of the covered rope 1 held by the rope holding part 21.

  As shown in FIG. 6, the adapter 70 is provided with a protrusion 75. The protrusion 75 protrudes in the radial direction from the outer surface 70d of the adapter 70 and extends in the extending direction. On the other hand, a recess 76 is provided on the inner surface 21 c of the rope holding portion 21. The recess 76 is recessed in the radial direction from the inner surface 21c and extends in the extending direction. In the extending direction, one end of the recess 76 is provided on the rear end face 21b. The other end of the recess 76 is provided at a position separated from the front end face 21a.

  The adapter 70 is inserted into the insertion hole 31 of the rope holding portion 21 from the opening end of the insertion hole 31 that opens to the rear end surface 21b. At this time, the protrusion 75 is fitted into the recess 76. When the protrusion 75 and the recess 76 are fitted to each other, the adapter 70 is restricted from rotating in the circumferential direction with respect to the rope holding portion 21.

  As shown in FIG. 7, when the movable portion 22 moves the blade 54 from the first position P1 to the second position P2, the blade 54 passes through the rope holding portion 21 and the exposure ports 32 and 72 of the adapter 70. The outer peripheral surface 1a of the covering rope 1 is contacted. On the side opposite to the exposure port 72, a part of the adapter 70 supports the covered rope 1. For this reason, force is easily transmitted from the blade 54 to the covering rope 1, and the blade 54 can easily enter the inside of the covering resin 12.

  In the tool 2 according to the first embodiment described above, the knife 23 includes the blade 54 that can move with respect to the covered rope 1 and the heating unit 52 that can heat the blade 54. The movable part 22 has a blade 54 heated by the heating part 52, a first position P1 located outside the covering resin 12 of the covering rope 1, a second position P2 entering the inside of the covering resin 12, and It is possible to move to. Since the blade 54 moved from the first position P1 to the second position P2 is heated by the heating unit 52, the coating resin 12 can be cut while melting the coating resin 12. Thereby, the covering resin 12 of the covering rope 1 can be easily cut. Furthermore, since the movable part 22 is connected to the rope holding part 21, the operator can easily handle the tool 2 with one hand, for example, without easily gripping the covered rope 1 and the knife 23. The resin 12 can be melted and cut. In addition, the blade 54 that is heated is moved through the exposure port 32 of the rope holding unit 21, so that the blade 54 is covered with the rope holding unit 21 that forms the exposure port 32, and the blade 54 is heated by the operator. Touching is suppressed.

  For example, when starting to cut the covering resin 12 from the end 1b of the covering rope 1, the held covering rope 1 may not be stable, and it may be difficult to cut the covering resin 12 straight in the stretching direction. On the other hand, in the present embodiment, the rope holding portion 21 is moved toward the end portion 1 b of the covered rope 1 in a state where the blade 54 is located at the second position P <b> 2 that has entered the inside of the coated resin 12. Thereby, it becomes easy to cut the coating resin 12 straight from the end 1b of the covering rope 1 in the extending direction.

(Second Embodiment)
Hereinafter, the second embodiment will be described with reference to FIGS. 8 and 9. In the following description of the plurality of embodiments, components having the same functions as the components already described are denoted by the same reference numerals as those described above, and further description may be omitted. . In addition, a plurality of components to which the same reference numerals are attached do not necessarily have the same functions and properties, and may have different functions and properties according to each embodiment.

  FIG. 8 is a side view showing the covered rope 1 and the tool 2 according to the second embodiment. As shown in FIG. 8, in the second embodiment, the tool 2 further includes a stopper 81. The stopper 81 is attached to a slit 82 provided in the movable portion 22.

  The slit 82 extends in the longitudinal direction of the arm 41 and the grip 42. The stopper 81 is attached to the slit 82 so as to be movable in the longitudinal direction of the arm 41 and the grip 42. For example, the stopper 81 extends from the grip 42 toward the rope holder 21 and the knife 23 attached to the knife holder 24.

  At least a part of the stopper 81 is located between the movable portion 22 and the rope holding portion 21 and the knife 23 attached to the knife holding portion 24. For this reason, at least a part of the stopper 81 is located on the first direction D1 side with respect to the movable portion 22.

  When the movable portion 22 is moved by a predetermined amount in the first direction D1, the stopper 81 contacts the knife 23, for example. The stopper 81 in contact with the knife 23 supports the movable part 22 and restricts the movable part 22 from further moving in the first direction D1.

  For example, the stopper 81 is movable along the slit 82 to a first support position PS1 indicated by a two-dot chain line in FIG. 8 and a second support position PS2 indicated by a solid line in FIG. The movable part 22 and the stopper 81 hold the stopper 81 on the movable part 22 by various means such as friction and fitting at each position such as the first support position PS1 and the second support position PS2. The movement of 81 with respect to the movable portion 22 may be restricted.

  As described above, the stopper 81 located at the first support position PS1 contacts the knife 23 when the movable portion 22 is moved by a predetermined amount in the first direction D1. The stopper 81 supports the movable part 22 moved in the first direction D1, and restricts the movable part 22 from further moving in the first direction D1.

  The second support position PS2 is farther from the arm shaft 39 than the first support position PS1. The stopper 81 located at the second support position PS2 contacts the knife 23 when the movable portion 22 is moved by a predetermined amount in the first direction D1. The moving distance until the stopper 81 positioned at the second support position PS2 contacts the knife 23 is longer than the moving distance until the stopper 81 positioned at the first support position PS1 contacts the knife 23. That is, the stopper 81 located at the second support position PS2 supports the movable portion 22 located on the first direction D1 side with respect to the position supported at the first support position PS1.

  As described above, according to the position of the stopper 81, the position of the movable part 22 when supported by the stopper 81 changes. In other words, the stopper 81 can adjust the maximum amount of movement of the movable portion 22 in the first direction D1 by moving.

  FIG. 9 is a side view showing a covered rope 1 and a tool 2 according to a modification of the second embodiment. As shown in FIG. 9, in the modified example of the second embodiment, the fixed band 62 is an example of a stopper and is movable in the extending direction. At least a part of the fixed band 62 is located on the first direction D1 side with respect to the movable portion 22.

  The fixed band 62 is movable to a first support position PS1 indicated by a two-dot chain line in FIG. 9 and a second support position PS2 indicated by a solid line in FIG. The fixing band 62 fixes the knife 23 to the rope holding portion 21 regardless of whether the fixing band 62 is in the first support position PS1 or the second support position PS2.

  When the movable band 22 is moved in the first direction D1 when the fixed band 62 is positioned at the first support position PS1, the stopper 81 contacts the fixed band 62. The fixed band 62 supports the movable portion 22 via the stopper 81, thereby restricting the movable portion 22 from further moving in the first direction D1.

  The second support position PS2 is farther from the arm shaft 39 than the first support position PS1. The fixed band 62 located at the second support position PS2 contacts the stopper 81 when the movable portion 22 is moved by a predetermined amount in the first direction D1. The moving distance until the fixed band 62 positioned at the second support position PS2 contacts the stopper 81 is longer than the moving distance until the fixed band 62 positioned at the first support position PS1 contacts the stopper 81. That is, the fixed band 62 positioned at the second support position PS2 supports the movable portion 22 positioned on the first direction D1 side with respect to the position supported at the first support position PS1.

  As described above, depending on the position of the fixed band 62, the position of the movable portion 22 when supported by the fixed band 62 changes. In other words, the fixed band 62 can adjust the maximum amount of movement of the movable portion 22 in the first direction D1 by moving.

  As shown in FIG. 8, the tool 2 of the second embodiment further includes a tension spring 85. The tension spring 85 is an example of an elastic member, for example, a coil spring. The elastic member may be another elastic member such as a leaf spring.

  One end of the tension spring 85 is attached to a first attachment portion 54 d provided on the blade 54. For example, the first attachment portion 54d protrudes from the base portion 54a in the direction opposite to the edge portion 54b. The other end of the tension spring 85 is attached to a second attachment portion 53 e provided in the connection portion 53. Thereby, the tension spring 85 connects the connecting portion 53 and the blade 54.

  When the movable portion 22 is moved in the first direction D1, the pin 43 pushes down the blade 54 from the first position P1 toward the second position P2. The pushed blade 54 rotates about the knife shaft 55 to pull the tension spring 85.

  The pulled tension spring 85 urges the blade 54 toward the first position P1 by a restoring force (elastic force). For example, when the force by which the operator pushes down the movable part 22 in the first direction D1 is stronger than the restoring force of the tension spring 85, the movable part 22 moves in the first direction D1, and the pin 43 moves the blade 54 in the first direction. The position P1 is moved to the second position P2.

  When the force applied to the movable part 22 by the operator is released, the tension spring 85 moves the blade 54 from the second position P2 to the first position P1 by the restoring force. The blade 54 urged toward the first position P1 by the tension spring 85 pushes the movable portion 22 in the second direction D2. Thereby, the blade 54 and the movable part 22 are returned to the positions before the movable part 22 is pushed down.

  In the tool 2 of the second embodiment described above, the movable portion 22 moves the blade 54 from the first position P1 to the second position P2 by being moved in the first direction D1. The tension spring 85 biases the blade 54 toward the first position P1. The blade 54 biased by the tension spring 85 pushes the movable portion 22 in the second direction D2 opposite to the first direction D1. Thereby, for example, an operator can move the movable part 22 in the second direction D2 to return to the original position by releasing the movable part 22 after moving the blade 54 to the second position P2. it can. This suppresses the blade 54 from cutting the coating resin 12 in an undesired portion and improves workability.

  The stopper 81 is located closer to the first direction D1 than the first support position PS1 that can support the movable portion 22 moved in the first direction D1, and the position supported at the first support position PS1. It can move to 2nd support position PS2 which can support the movable part 22 to perform. As a result, the moving amount of the movable portion 22 in the first direction D1 can be set to a desired amount. Therefore, the coating resin 12 can be cut to a desired depth by the blade 54, and the depth at which the coating resin 12 is cut by the blade 54 can be kept constant. For example, the movable portion 22 is excessively moved in the first direction D <b> 1 and the blade 54 is prevented from biting the rope 11, and the tool 2 can be easily moved in the extending direction with respect to the covered rope 1.

(Third embodiment)
The third embodiment will be described below with reference to FIG. FIG. 10 is a side view showing the covered rope 1 and the tool 2 according to the third embodiment. As shown in FIG. 10, the knife holding unit 24 is provided in the movable unit 22 in the third embodiment.

  The knife holding part 24 of the third embodiment has a pedestal 91. The pedestal 91 is provided on the arm 41 of the movable portion 22 and holds the handle 51 of the knife 23 so that the connection portion 53 passes through the opening 41 d provided on the arm 41.

  The blade 54 of the third embodiment is fixed to the connection portion 53. Note that the blade 54 of the third embodiment may also be rotatable with respect to the connection portion 53. The blade 54 is located between the arm 41 and the exposure port 32.

  By moving the movable portion 22, the knife 23 moves relative to the rope holding portion 21 integrally with the movable portion 22. For this reason, the blade 54 of the knife 23 is movable with respect to the covered rope 1 held by the rope holding part 21. Similar to the first embodiment, the movable portion 22 can move the blade 54 to a first position P1 indicated by a two-dot chain line in FIG. 10 and a second position P2 indicated by a solid line in FIG. It is.

  The tool 2 of the third embodiment further has a pressing spring 95. The pressing spring 95 is interposed between the rope holding part 21 and the movable part 22. When the movable portion 22 moves in the first direction D1, the pressing spring 95 is crushed by the rope holding portion 21 and the movable portion 22. The crushed pressing spring 95 urges the rope holding part 21 and the movable part 22 in a direction away from each other by a restoring force. For this reason, the pressing spring 95 urges the blade 54 toward the first position P1, and returns the movable portion 22 and the blade 54 to a position before the movable portion 22 is pushed down.

  In the tool 2 of the third embodiment described above, the knife holding portion 24 is provided on the movable portion 22. Thereby, the blade 54 can move with respect to the covering rope 1 without moving with respect to the connecting portion 53. Therefore, the structure for moving the blade 54 to the knife 23 becomes unnecessary, and the cost of the knife 23 is reduced.

  According to at least one embodiment described above, the movable part enters the blade heated by the heating part into the first position located outside the coating resin of the resin-coated rope and the inside of the coating resin. It is possible to move to the second position. Thereby, the coating resin of the resin-coated rope can be easily cut.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Resin covering rope, 1a ... Outer peripheral surface, 1b ... End part, 2 ... Covering resin stripping tool, 12 ... Covering resin, 21 ... Rope holding part, 22 ... Movable part, 23 ... Knife (cutting means), 24 ... Knife Holding part (cutting means holding part), 52 ... heating part, 54 ... blade, 62 ... fixed band (stopper), 81 ... stopper, 85 ... tension spring (elastic member), D1 ... first direction, D2 ... second Direction, P1... First position, P2... Second position, PS1... First support position, PS2.

Claims (4)

A rope holding part configured to hold the resin-coated rope so as to be movable in the extending direction of the resin-coated rope; and
A movable part connected to the rope holding part movably with respect to the rope holding part;
The rope holding portion or the movable portion is configured to hold a cutting means having a blade movable with respect to the resin-coated rope held by the rope holding portion and a heating portion capable of heating the blade. A cutting means holding portion provided in
With
The movable part moves the blade heated by the heating part to a first position located outside the coating resin of the resin-coated rope and a second position entering the inside of the coating resin. Is possible,
Coated resin stripping tool. An elastic member that urges the blade toward the first position;
The movable part is moved in the first direction to move the blade from the first position to the second position,
The blade urged toward the first position by the elastic member pushes the movable part in a second direction opposite to the first direction;
The coated resin stripping tool according to claim 1. A stopper positioned on the first direction side with respect to the movable part;
The stopper is configured to limit the further movement of the movable part in the first direction by supporting the movable part moved in the first direction, and the stopper moves in the first direction. A first support position capable of supporting the moved movable part, and a second support capable of supporting the movable part located on the first direction side relative to a position supported at the first support position. Moveable to a position,
The coated resin peeling tool according to claim 2. A rope holding part configured to hold the resin-coated rope so as to be movable in the extending direction of the resin-coated rope; and
A movable part connected to the rope holding part movably with respect to the rope holding part;
The rope holding portion or the movable portion is configured to hold a cutting means having a blade movable with respect to the resin-coated rope held by the rope holding portion and a heating portion capable of heating the blade. A cutting means holding portion provided in
With
The movable part moves the blade heated by the heating part to a first position located outside the coating resin of the resin-coated rope and a second position entering the inside of the coating resin. Is possible,
A coating resin peeling method for cutting the coating resin with a coating resin peeling tool,
Holding the resin-coated rope by the rope holding portion in a state where the blade faces the outer peripheral surface of the resin-coated rope at a position spaced from the end of the resin-coated rope;
Moving the movable part to move the blade heated by the heating part from the first position to the second position;
Moving the rope holding part toward the end of the resin-coated rope in a state where the blade is located at the second position;
A coating resin peeling method comprising:

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