JP7003802B2 - Cover stripper - Google Patents

Description

The present invention relates to a stripping device that strips the coating of a coated electric wire.

When constructing a distribution line for an indirect live line of an overhead distribution line, a special tool is used to strip the coating of the covered line. As a technique related to such a dedicated tool, the coating is stripped with holes for hooking tip tools such as a bind hammer attached to the tip of a hot stick at multiple locations and a blade that protrudes from the coated wire on the inner surface. There was an instrument. In such a coating stripper, the tip tool is hooked on the coating stripper attached to the coated wire so that the blade pierces the coating on the coated wire, and the hot stick is operated so as to pull down the tip tool. The coating stripper itself can be rotated around the wire and stripped with a blade.

Further, specifically, conventionally, for example, a coated electric wire can be inserted and removed in the central portion of a coating stripping tool provided with a peeling blade that protrudes from a coated electric wire held by a pair of holding members. The present invention relates to a coating stripping device in which a peeling blade is rotated around the central axis of a coated electric wire to strip the coating by transmitting the rotation of the rotation shaft of a remote control rod (hot stick) by a rotating disk to be accommodated. There was a technique (see, for example, Patent Document 1 below).

Further, specifically, conventionally, for example, the coating is peeled off in an annular shape by a coating stripping blade attached to one of a pair of frame dividers sandwiching the coating of the electric wire from both sides so as to face the coating of the electric wire. It is a coating stripping piece to be removed, and is provided with a coating stripping prevention portion consisting of two holding plates whose distance from each other is narrower than the width of the coating stripping blade, and is coated by transmitting the rotation of the rotation shaft of the hot stick. There was a technique related to a coating stripping piece in which a stripping blade was rotated around the central axis of an electric wire to strip the coating (see, for example, Patent Document 2 below).

Further, specifically, conventionally, for example, a gear that is meshed by bringing the rotational force generation mechanism closer to the main body of the coating stripping device is provided with a blade on the inner peripheral surface to transfer the rotational force of the rotational force generation mechanism. There was a technique related to an overhead wire stripping device that was transmitted to the main body of the stripping device to strip the coating (see, for example, Patent Document 3 below).

The overhead wire coating stripping device described in Patent Document 3 rotates with respect to the coating stripping device main body by gripping the protrusions provided on the coating stripping device main body and the rotational force generating mechanism by an insulating yatco. The force generation mechanism can be brought closer, and by loosening the grip of the insulating yatko, the rotational force generation mechanism is separated from the main body of the coating stripping device by using the urging force of the coil spring, and the meshing of the meshed gear is released. The position of the main body of the coating stripping device can be returned to the initial position.

Further, specifically, conventionally, for example, each gripping body is in a state where the covered wire is gripped by a pair of gripping bodies forming a gripping portion having a substantially continuous spiral and a blade on the inner surface. By grasping a pair of handles provided on the outside of the blade and rotating the gripping wire around the covered wire, the blade body protruding to the inner surface of the gripping wire while spirally moving the gripping wire around the covered wire. There has been a technique relating to a coating stripper in which the covering material of a coated wire is continuously peeled off in the longitudinal direction of the coated wire (see, for example, Patent Document 4 below).

Japanese Unexamined Patent Publication No. 2009-60753 Japanese Unexamined Patent Publication No. 2017-147907 Japanese Unexamined Patent Publication No. 2017-38419 Japanese Patent No. 3065265

However, as described above, in the conventional technique of stripping the coating by rotating the stripping device itself around the electric wire, the tip tool provided at the tip of the hot stick is hooked on the stripping device and the hot stick is concerned. There was a problem that the work had to be repeated and the work was complicated.

Further, in the conventional technique of stripping the coating by rotating the coating stripper itself around the electric wire, the rotating surface of the coating stripper must be perpendicular to the length direction of the electric wire, and the electric wire is curved. In a state where the rotating surface of the coating stripper is slanted with respect to the length direction of the wire, the cutting edge of the coating stripper may not evenly bite into the wire coating and strip the coating. Can not.

As described above, the conventional technique of stripping the coating by rotating the coating stripper itself around the electric wire has a problem that the handling is limited and the usability is inferior.

Further, in the conventional technique described in Patent Document 1 and Patent Document 2 described above, the rotational force generated by rotating the hot stick around the axis is transmitted to rotate the peeling blade and the coating stripping blade. There is a problem that the load when stripping the coating is applied to the gripping force of the operator who grips the hot stick, and the burden on the operator is large.

Furthermore, the conventional technique of stripping the coating by transmitting the rotation of the rotation shaft of the hot stick and rotating the peeling blade of the coating stripper requires the hot stick to be grasped and rotated with both hands. Therefore, there is a problem that a stable scaffold is required, the work place is limited, the use is limited to indirect live-line work, and the versatility is inferior.

Further, in the conventional technique such as the coating stripper described in Patent Document 3 described above, the load when stripping the coating is applied to the grip strength of the worker who grips the insulating yatco, so that the burden on the worker is imposed. There was a problem that it was big.

Further, in the conventional technique such as the coating stripper described in Patent Document 4 described above, since the gripping portion is rotated only by directly gripping the handle, it is possible to strip the curved wire coating. Although it is possible, since the handle must be gripped directly by hand, it cannot be used for remote control by indirect hot-line work, and there is a problem that the use is limited and the versatility is inferior.

An object of the present invention is to provide a coating stripping device capable of facilitating a stripping operation for stripping a coating from a coated electric wire in order to solve the above-mentioned problems caused by the prior art.

Another object of the present invention is to provide a highly versatile coating stripper in order to solve the above-mentioned problems caused by the prior art.

In order to solve the above-mentioned problems and achieve the object, the coating stripper according to the present invention includes a pair of gripping bodies having a semi-cylindrical groove having open ends formed on one side, and the pair of gripping bodies. A blade body provided on at least one gripping body of the gripping body and protruding inward of a through hole formed by combining the pair of gripping bodies with the grooves facing each other. A rod shape provided on each of the pair of gripping bodies and having a plurality of locked portions for receiving hook locking on the outside of the pair of gripping bodies in a combined state and a thread on the outer peripheral surface. One end penetrates the one gripping body, the other end is screwed into the other gripping body of the pair of gripping bodies, and rotates around the axis to form the pair of gripping bodies. It is characterized by being provided with a shaft that is connectable and detachably connected, and a connecting metal fitting that is connected to one end of the shaft and can be connected to a connecting portion provided at the tip of a shared operation rod.

Further, in the above invention, the coating stripping device according to the present invention is a plate-shaped member provided on each of the pair of gripping bodies and extending in the radial direction of a circle centered on the axis of the through hole. The locked portion is characterized by having a plurality of penetration holes through which the plate-shaped member is penetrated in the plate thickness direction.

Further, in the above invention, the coating stripper according to the present invention is provided on each of the pair of gripping bodies, one end thereof is fixed to the gripping body, and the other end is centered on the axis of the through hole. A rod-shaped member extending in the radial direction of the circle is provided, and the locked portion is a ring or a hook provided at the other end of the rod-shaped member.

Further, the coating stripper according to the present invention is characterized in that, in the above invention, the locked portion is arranged on the same circumference centered on the axis of the through hole.

Further, the coating stripping device according to the present invention is a coating stripping device including a gripping portion and a narrowing portion, and the gripping portion has a semi-cylindrical groove having both ends open. A pair of gripping bodies formed on one side, an urging member for urging the pair of gripping bodies in a direction away from each other, and a groove provided on at least one of the pair of gripping bodies. A blade body that protrudes toward the inside of the through hole formed by combining the pair of gripping bodies in a state of facing each other, and an axial center of the through hole provided in each of the pair of gripping bodies. The narrowed portion is provided with a plurality of ratchet teeth arranged on the same circumference centered on the circle and protruding along a direction inclined with respect to the radial direction of the circle, and the holding portion is opened at both ends and the ratchet is provided. A pair of narrowed bodies in which a semi-cylindrical recess having a radius larger than the radius of a circle formed by connecting the tips of teeth is formed on one side, and at least one of the pair of narrowed bodies. It is rotatably connected and rotates around an axial center parallel to the axial center direction of a through hole formed by combining the pair of narrow holding bodies provided on the body with the recesses facing each other. Thereby, the pawl member swinging between the first position protruding from the inner peripheral surface of the through hole by a predetermined amount and the second position closer to the inner peripheral surface than the first position, and the pawl. An urging member that urges the member from the second position side to the first position side, and a rod shape having a thread on the outer peripheral surface, one end of which is one of the pair of narrow holding bodies. At one end of the shaft and a shaft that penetrates the narrow holding body and the other end is screwed into the other narrow holding body and rotates around the axis to connect the pair of narrow holding bodies so as to be connectable and detachable. It is characterized by being provided with a connecting metal fitting that is connected and can be connected to a connecting portion provided at the tip of the shared operation rod.

Further, in the coating stripping device according to the present invention, in the above invention, the pair of gripping bodies each have a semi-cylindrical shape in which one end side in the axial direction of the through hole has an outer diameter smaller than that of the periphery. It is characterized in that a pair of shaft forming members constituting a cylindrical shaft portion in a state where the through hole is formed is provided, and the ratchet teeth are provided on the outer peripheral surface of the pair of shaft forming members.

Further, in the above invention, the coating stripper according to the present invention is provided in the recess and is rotatable around an axial center parallel to the axial center direction of the through hole, and is at least a part of the outer surface. Is provided with a bearing facing the inside of the through hole.

Further, in the above invention, the coating stripper according to the present invention is provided in the recess and is rotatable around an axial center parallel to the axial center direction of the through hole, and is at least a part of the outer surface. Is provided with a rolling element facing the inside of the through hole.

According to the coating stripping device according to the present invention, there is an effect that the stripping work of stripping the coating from the coated electric wire can be facilitated.

Further, according to the coating stripping device according to the present invention, there is an effect that a highly versatile coating stripping device can be provided.

It is explanatory drawing (the 1) which shows the structure of the coating stripper of Embodiment 1 which concerns on this invention. It is explanatory drawing (the 2) which shows the structure of the coating stripper of Embodiment 1 which concerns on this invention. It is explanatory drawing (the 1) which shows the use example of the coating stripper of Embodiment 1 which concerns on this invention. It is explanatory drawing (the 2) which shows the use example of the coating stripper of Embodiment 1 which concerns on this invention. It is explanatory drawing (the 3) which shows the use example of the coating stripper of Embodiment 1 which concerns on this invention. It is explanatory drawing (the 4) which shows the use example of the coating stripper of Embodiment 1 which concerns on this invention. It is explanatory drawing (the 5) which shows the use example of the coating stripper of Embodiment 1 which concerns on this invention. It is explanatory drawing (the 6) which shows the use example of the coating stripper of Embodiment 1 which concerns on this invention. It is explanatory drawing which shows the structure of the coating stripper of Embodiment 2 which concerns on this invention. It is explanatory drawing (the 1) which shows the use example of the coating stripper of Embodiment 2 which concerns on this invention. It is explanatory drawing (the 2) which shows the use example of the coating stripper of Embodiment 2 which concerns on this invention. It is explanatory drawing (the 3) which shows the use example of the coating stripper of Embodiment 2 which concerns on this invention. It is explanatory drawing (the 4) which shows the use example of the coating stripper of Embodiment 2 which concerns on this invention. It is explanatory drawing (the 5) which shows the use example of the coating stripper of Embodiment 2 which concerns on this invention. It is explanatory drawing (the 6) which shows the use example of the coating stripper of Embodiment 2 which concerns on this invention. It is explanatory drawing (the 1) which shows another use example of the coating stripper of Embodiment 2 which concerns on this invention. It is explanatory drawing (the 2) which shows another use example of the coating stripper of Embodiment 2 which concerns on this invention.

Hereinafter, preferred embodiments of the coating stripper according to the present invention will be described in detail with reference to the accompanying drawings.

<Embodiment 1>
(Structure of coating stripper)
First, the configuration of the coating stripper according to the first embodiment of the present invention will be described. 1 and 2 are explanatory views showing the configuration of the coating stripper according to the first embodiment of the present invention. In FIG. 1, the coating stripper 100 according to the first embodiment of the present invention includes a gripping portion 110, an operating portion 120, and a connecting metal fitting 130.

The grip portion 110 includes a pair of grip bodies 111 (111a, 111b). Each of the pair of gripping bodies 111 is provided with a semi-cylindrical groove 201 on one side. Both ends of the groove 201 in the length direction (the axial direction in the semi-cylindrical shape) are open. Each of the pair of gripping bodies 111 is provided with a plurality (for example, two) grooves 201 having different width dimensions and depths.

The gripping portion 110 forms a cylindrical through hole 112 by bringing the pair of gripping bodies 111 into contact with each other in a state where the grooves 201 in the pair of gripping bodies 111 face each other. When a plurality of grooves 201 having different width dimensions and depths are provided, a pair of gripping bodies 111 are brought into contact with each other to form through holes 112 having different inner diameters.

The grip portion 110 forms a plurality of through holes 112 having different inner diameters according to the width dimension and the depth of the groove 201. The grip portion 110 includes a blade body 113 that projects inward of the through hole 112. The blade body 113 is provided with a blade edge having a predetermined length, and the blade edge is provided so as to be along the axial direction of the through hole 112.

The inner peripheral surface of the through hole 112 is provided with continuous unevenness (not shown) along the length direction of the groove 201, that is, the axial direction of the through hole 112. The unevenness forms a plurality of spiral ridges around the axis of the through hole 112 formed in a state where the pair of gripping bodies 111 are in contact with each other. The pitch of the ridges is shorter than the length of the cutting edge of the blade 113.

The shape of the convex portion in the unevenness is preferably a shape in which the width becomes narrower toward the inside (axis center side) of the through hole 112, that is, toward the tip end side of the convex portion. By making the shape of the convex portion of the unevenness narrower toward the tip side, it is easier for the tip of the ridge to bite into the coating of the coated wire when stripping the coated wire, and in the longitudinal direction of the coated wire, The covered wire can be made less slippery with respect to the grip portion 110.

Each of the pair of gripping bodies 111 is provided with a through hole (not shown) that penetrates each of the pair of gripping bodies 111 along the facing direction of the pair of gripping bodies 111. Of the through holes provided in each of the pair of grip bodies 111, a screw thread is formed on the inner peripheral surface of the through holes provided in one of the grip bodies 111a. A rod-shaped shaft 202 having threads on the outer peripheral surface is screwed into the threads formed on the inner peripheral surface of the through hole provided in the gripping body 111a.

The other end of the shaft 202 is fixed to the connecting metal fitting 130 through the through hole provided in the other gripping body 111b among the through holes provided in each of the pair of gripping bodies 111. As a result, the pair of gripping bodies 111 are connected via the shaft 202. No screw thread is formed on the inner peripheral surface of the through hole 112 provided in the other gripping body 111b, and the shaft 202 idles with respect to the other gripping body 111b.

The connecting metal fitting 130 has a cylindrical shape and is fixed to one end of the shaft 202 on one end side in the axial direction. The connecting metal fitting 130 is provided with a shaft hole on the other end side in the axial direction, which is fitted with the tip of a shared operation rod (see reference numeral 300 in FIG. 3). In the connecting metal fitting 130, a groove continuous with the peripheral edge of the shaft hole and forming a substantially T-shape is provided on the outer peripheral surface of the shaft hole portion. This groove constitutes a twist lock structure for fixing the connecting metal fitting 130 to the tip of the shared operation rod by engaging with a pin provided at the tip of the shared operation rod. Since the twist lock structure is a known technique, the description thereof will be omitted.

In the pair of gripping bodies 111, on the surfaces facing each other, a locking portion 203 that meshes with the pair of gripping bodies 111 in contact with each other is provided. The locking portion 203 is provided, for example, on the protrusion 204 provided on one of the gripping bodies 111a of the pair of gripping bodies 111 and on the other gripping body 111b of the pair of gripping bodies 111. It can be realized by the recess 205. By providing the locking portion 203, it is possible to prevent the position of the pair of gripping bodies 111 from being displaced when the shaft 202 is tightened.

In one grip body 111a, a guide member 114 having a cylindrical shape is provided on the other surface side opposite to the one surface on which the groove 201 is provided. The guide member 114 is provided so that the axial center direction is orthogonal to the length direction of the groove 201 and parallel to the depth direction of the groove 201. The space on the inner peripheral side of the guide member 114 is continuous with the through hole 112 provided in one of the gripping bodies 111a. A screw thread is provided on the inner peripheral surface of the guide member 114. The guide member 114 is screwed with one end of the shaft 202 that penetrates one of the gripping bodies 111a.

The operation unit 120 is provided on each of the pair of gripping bodies 111, and is realized by a plate-shaped member 121 extending in the radial direction of a circle centered on the axis of the through hole 112. Among the plate-shaped members 121 that realize the operation unit 120, the first plate-shaped member 121a provided on one gripping body 111a and the second plate-shaped member 121b provided on the other gripping body 111b. Has a substantially disk shape in a state where a pair of gripping bodies 111 are combined. The first plate-shaped member 121a operates in association with the operation of one of the gripping bodies 111a, and when the pair of gripping bodies 111 are separated from each other, the first plate-shaped member 121a is separated from the second plate-shaped member 121b.

The operation unit 120 includes a plurality of locked portions 122 on the peripheral edge portion. The locked portion 122 accepts the locking of the hook of the bind hammer. The locked portion 122 can be realized, for example, by a plurality of penetration holes that penetrate the plate-shaped member 121 that realizes the operation portion 120 in the plate thickness direction. The penetration holes are preferably arranged on the same circumference centered on the axis of the through hole 112. Further, it is preferable that the penetration holes are arranged at equal intervals on the same circumference centered on the axis of the through hole 112.

Alternatively, the locked portion 122 is provided, for example, on each of the pair of gripping bodies 111, one end thereof is fixed to the gripping body 111, and the other end is in the radial direction of a circle centered on the axis of the through hole 112. It may be realized by a ring or a hook provided at the other end of the rod-shaped member extending to the radius. Further, the locked portion 122 may be realized by a protrusion 204 protruding in the plate thickness direction from the disk that realizes the operating portion 120.

(Example of using the coating stripper 100)
Next, an example of using the coating stripper 100 according to the first embodiment of the present invention will be described. 3 to 8 are explanatory views showing an example of use of the coating stripper 100 according to the first embodiment of the present invention. The coating stripping device 100 is used for stripping the coating of the coated electric wire.

In the work of stripping the coating of the coated electric wire, first, as shown in FIG. 3, the tip of the shared operation rod and the connecting metal fitting 130 are connected, and the coating stripping device 100 is attached to the tip of the shared operation rod 300. Since the connecting metal fitting 130 adopts a twist lock structure, the tip of the shared operation rod 300 is fitted by inserting the pin provided at the tip of the shared operation rod 300 into the substantially T-shaped groove 201. By rotating the shared operation rod 300 around the axis of the shared operation rod 300 in the state, the shared operation rod 300 can be connected to the shared operation rod 300.

Next, as shown in FIG. 4, the coating stripper 100 is brought closer to the coated electric wire 401 with the pair of gripping bodies 111 separated from each other. Since the first plate-shaped member 121a is provided on one gripping body 111a and the second plate-shaped member 121b is provided on the other gripping body 111b, the pair of gripping bodies 111 are separated from each other. The first plate-shaped member 121a and the second plate-shaped member 121b in the closed state are separated from each other.

Then, the covered electric wire 401 is guided between the pair of gripping bodies 111 from the opening between the first plate-shaped member 121a and the second plate-shaped member 121b, and the groove 201 in the pair of gripping bodies 111 is guided. The coated electric wire 401 is positioned between them, and the shared operation rod 300 is rotated around the axis in a state where the coated electric wire 401 is positioned between the grooves 201 in the pair of gripping bodies 111. At this time, the covered electric wire 401 is hooked on the groove 201 of one of the gripping bodies 111a, and the shared operation rod 300 is rotated around the axis so as to be pulled toward the operator's hand side.

As a result, the shaft 202 is fastened to one gripping body 111a without rotating one gripping body 111a with the rotation of the shared operation rod 300, and as shown in FIGS. 5 and 6, a pair of gripping bodies 111a is fastened. The holding bodies 111 can be brought into contact with each other. In a state where the pair of gripping bodies 111 are in contact with each other, the coated electric wire 401 is positioned in the through hole 112 in the gripping portion 110. In the state where the coated electric wire 401 is positioned in the through hole 112 in the grip portion 110, the cutting edge of the blade 113 pierces the coating of the coated electric wire 401.

Next, the shared operation rod 300 is removed from the coating stripper 100. In the coating stripper 100, since the connecting metal fitting 130 adopts a twist lock structure, the shared operation rod 300 is shared by rotating the shared operation rod 300 around the axis of the shared operation rod 300 in the direction opposite to that at the time of connection. The connection between the operation rod 300 and the connecting metal fitting 130 can be easily released, and the shared operation rod 300 can be removed from the coating stripper 100.

At this time, the shared operation rod 300 is rotated so that the tip thereof is pressed against the coating stripper 100. Thereby, in conjunction with the rotation of the shared operation rod 300, the shared operation rod 300 can be removed from the cover stripper 100 without rotating the shaft 202 in the direction of separating the pair of gripping bodies 111 (the loosening direction). Can be done.

Next, as shown in FIGS. 7 and 8, the bind hammer 701 is used to hook the hook of the bind hammer 701 to the locked portion 122 of the operation portion 120. Then, the shared operation rod 300 is operated so as to pull down the hooked bind hammer 701. As a result, the coating stripper 100 rotates around the coated electric wire 401. Since the inner peripheral surface of the through hole 112 in the grip portion 110 is provided with spiral ridges, the coating stripper 100 is covered by rotating the coating stripper 100 around the coated electric wire 401. It moves along the longitudinal direction of the electric wire 401.

As described above, since the cutting edge of the blade 113 is pierced into the coating of the coated electric wire 401, the coating stripping device 100 moves along the longitudinal direction of the coated electric wire 401 to cover the coated electric wire 100. By rotating around the 401, the blade 113 can continuously peel off the coating of the coated electric wire 401 along the longitudinal direction of the coated electric wire 401. The operation of hooking the bind hammer 701 on the locked portion 122 of the coating stripper 100 and rotating it is repeated a plurality of times until the coating is stripped over a desired length.

Further, the coating stripping device 100 can be used by the coating stripping device 100 alone by directly operating the coating stripping device 100 by an operator without connecting the shared operation rod 300 to the connecting metal fitting 130. can. In this case, for example, the operator holds down the other gripping body 111b hooked on the covered electric wire 401 with one hand, grips the connecting metal fitting 130 with the other hand, and rotates the connecting metal fitting 130 around the axis. .. This makes it possible to provide a highly versatile coating stripper 100 that can be used for purposes other than indirect hot-line work.

After that, the coated electric wire 401 is held by one hand, the operation unit 120 is grasped by the other hand, and the coating stripping device 100 is rotated around the coated electric wire 401. Since the locked portion 122 is realized by the penetration hole provided in the plate-shaped member 121, the covering is peeled off while the plate-shaped member 121 is gripped by hooking a finger from the peripheral edge of the plate-shaped member 121 into the penetration hole. The taker 100 can be rotated around the covered wire 401. As a result, the coating stripping device 100 strips the coating while moving along the longitudinal direction of the coated electric wire 401.

Since the operation unit 120 has a substantially disk shape and a plurality of penetration holes are provided on the same circumference centered on the axis of the through hole 112, the operator can directly hook the bind hammer 701. Even when operated by hand, the distance from the axis of the through hole 112 to the position where the operating force acts in the through hole can always be made equal. As a result, the coating stripper 100 can always be rotated around the coated electric wire 401 with the same force regardless of which through hole is used for operation.

After stripping the coating from the coated wire 401 over a desired length, the shared operation rod 300 is connected to the connecting metal fitting 130 of the coating stripper 100. Then, the shared operation rod 300 is rotated in the direction opposite to the direction indicated by the arrow in FIGS. 5 and 6, and the pair of gripping bodies 111 and the first plate-shaped member 121a and the second plate-shaped member 121b are formed. To separate. After that, the coating stripper 100 in a state where the pair of gripping bodies 111 are separated from each other is moved in the direction opposite to the direction indicated by the arrow in FIG. 4 and separated from the coated electric wire 401. As a result, the coating stripper 100 can be removed from the coated electric wire 401.

As described above, the coating stripper 100 according to the first embodiment of the present invention includes a pair of gripping bodies 111 having a semi-cylindrical groove 201 having both ends open on one side thereof, and a pair of gripping bodies 111. It is provided in at least one gripping body 111a of the gripping body 111, and projects toward the inside of the through hole 112 formed by combining the pair of gripping bodies 111 with the grooves 201 facing each other. A plurality of locked portions 122 provided on each of the blade body 113 and the pair of gripping bodies 111 and receiving the locking of the hook on the outside of the pair of gripping bodies 111 in a combined state, and screws on the outer peripheral surface. It has a rod shape with ridges, one end penetrates one gripping body 111a, and the other end is screwed into the other gripping body 111b of the pair of gripping bodies 111 and rotates around the axis. It is provided with a shaft 202 that connects the pair of gripping bodies 111 so as to be connectable and detachable, and a connecting metal fitting 130 that is connected to one end of the shaft 202 and can be connected to a connecting portion provided at the tip of the shared operation rod 300. It is characterized by that.

According to the coating stripping device 100 of the first embodiment according to the present invention, the coating stripping to the coated electric wire 401 is performed by using one shared operation rod 300 provided with a connecting tool connected to the connecting metal fitting 130 at the tip. The device 100 can be attached and the cover stripping device 100 can be removed from the covered electric wire 401. This makes it possible to facilitate the attachment of the coating stripping device 100 to the coated electric wire 401 and the removal work of the coating stripping device 100 from the coated electric wire 401.

Further, according to the coating stripper 100 of the first embodiment according to the present invention, the work of hooking the hook of the bind hammer 701 connected to the tip of the shared operation rod 300 and pulling down the shared operation rod 300 is performed. The coating of the coated electric wire 401 can be easily and surely stripped off only by repeating. As a result, the coating of the coated electric wire 401 can be stripped using only the binding hammer 701 without separately supporting the coating stripping device 100.

Further, according to the coating stripping device 100 of the first embodiment according to the present invention, the coating stripping device 100 is attached to the coated electric wire 401, the coating of the coated electric wire 401 is stripped, and the coating is stripped from the coated electric wire 401. Each operation at each stage of removing the vessel 100 can be performed using one type of indirect hot-line tool. That is, at the stage of attaching the coating stripping device 100 to the coated electric wire 401 and the stage of removing the coating stripping device 100 from the coated electric wire 401, the work can be performed using only the shared operation rod 300, and the coated electric wire 401 can be operated. At the stage of stripping the coating, the work can be performed using only the bind hammer 701.

This makes it possible to facilitate the stripping work of stripping the coating from the coated electric wire without operating a plurality of indirect hot-line tools at one time or changing the indirect hot-line tool in the middle of the work. ..

Further, according to the coating stripping device 100 of the first embodiment according to the present invention, the coating stripping device 100 can be directly operated by an operator and used by the coating stripper 100 alone. As a result, it can be widely used for the work of stripping the coating from the coated electric wire 401, and the versatility of the coating stripping device 100 can be enhanced.

As described above, according to the coating stripping device 100 of the first embodiment according to the present invention, it is possible to facilitate the stripping work of stripping the coating from the coated electric wire 401. Further, according to the coating stripping device 100 of the first embodiment according to the present invention, the versatility of the coating stripping device 100 can be enhanced.

Further, the coating stripper 100 according to the first embodiment of the present invention is provided on each of the pair of gripping bodies 111 and has a plate shape extending in the radial direction of a circle centered on the axis of the through hole 112. The member 121 is provided, and the locked portion 122 is characterized in that it is a plurality of penetration holes through which the plate-shaped member 121 is penetrated in the plate thickness direction.

According to the coating stripper 100 according to the first embodiment of the present invention, the locked portion 122 can be realized with a simple configuration, so that the weight of the coating stripping device 100 can be reduced. As a result, the coating stripper 100 can be easily handled, and operability and transportability can be improved.

Further, the coating stripper 100 according to the first embodiment of the present invention is provided on each pair of gripping bodies 111, one end of which is fixed to the gripping body 111, and the other end of which has an axial center of the through hole 112. A rod-shaped member extending in the radial direction of the center circle is provided, and the locked portion 122 is a ring or a hook provided at the other end of the rod-shaped member.

According to the coating stripper 100 according to the first embodiment of the present invention, the locked portion 122 can be realized with a simple configuration, so that the weight of the coating stripping device 100 can be reduced. This makes the coating stripper 100 easier to handle, and can improve operability and transportability.

Further, the coating stripper 100 according to the first embodiment of the present invention is characterized in that the locked portion 122 is arranged on the same circumference centered on the axis of the through hole 112.

According to the coating stripper 100 according to the first embodiment of the present invention, the distance from the axial center of the through hole 112 to the position where the operating force acts on the locked portion 122 can always be made equal. As a result, the coating stripper 100 can always be rotated around the coated electric wire 401 with the same force regardless of which locked portion 122 is used for operation.

As a result, the worker can obtain the optimum locked portion 122 according to the work situation such as the amount of rotation of the coating stripper 100 and the positional relationship between the locked portion 122 and the worker. Since the coating stripper 100 can be rotated by applying an operating force to the coating stripping device 100, work efficiency can be improved.

<Embodiment 2>
Next, the coating stripper according to the second embodiment of the present invention will be described. In the second embodiment, the same parts as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted.

(Structure of coating stripper)
First, the structure of the coating stripper according to the second embodiment of the present invention will be described. FIG. 9 is an explanatory diagram showing the structure of the coating stripper according to the second embodiment of the present invention. In FIG. 9, the coating stripper 900 according to the second embodiment of the present invention includes a gripping portion 910 and a narrowing portion 920.

The grip portion 910 includes a pair of grip bodies 911 (911a, 911b). Each of the pair of gripping bodies 911 is provided with a semi-cylindrical groove 201 on one side. Both ends of the groove 201 in the length direction (the axial direction in the semi-cylindrical shape) are open. The grip portion 910 includes a blade body 113 that projects inward of a cylindrical through hole 112 formed in a state where the pair of gripping bodies 911 are in contact with each other. The blade 113 is provided so that the cutting edge is along the axial direction of the through hole 112.

The pair of gripping bodies 911 are connected by an urging member 912 provided between the pair of gripping bodies 911. The urging member 912 exerts an urging force on the pair of gripping bodies 911 so as to separate the gripping bodies 911 from each other. The urging member 912 can be realized, for example, by a compression spring. As a result, the pair of gripping bodies 911 are separated from each other when no external force is applied.

Each of the pair of gripping bodies 911 is provided with a shaft forming member 913 having a substantially semi-cylindrical shape. The shaft forming member 913 provided on one of the holding bodies 911a of the pair of holding bodies 911 and the shaft forming member 913 provided on the other holding body 911b are the same as the pair of holding bodies 911. In contact with each other, they abut to form a cylindrical shaft portion (see reference numeral 1101 in FIG. 11). The inner diameter of the shaft portion is equal to the inner diameter of the through hole 112.

A plurality of ratchet teeth 914 projecting in the outer peripheral direction along the peripheral surface are provided on the outer peripheral surface of each shaft forming member 913. Each of the ratchet teeth 914 protrudes in a state of being tilted at a constant angle with respect to the radial direction of the shaft portion. The plurality of ratchet teeth 914 form an annular gear (ratchet gear: see reference numeral 1201 in FIG. 12) in a state where the pair of gripping bodies 911 are in contact with each other to form a cylindrical shaft portion.

In each shaft forming member 913, a flange member 915 projecting from the outer surface of the shaft forming member 913 in a flange shape is provided at an end portion opposite to the gripping body 911. The flange member 915 constitutes an annular flange in a state where a pair of gripping bodies 911 are in contact with each other to form a cylindrical shaft portion.

The narrow holding portion 920 includes a pair of narrow holding bodies 921 (921a, 921b). Each of the pair of narrow holding bodies 921 is provided with a semi-cylindrical recess 922 on one side. Both ends of the recess 922 in the length direction (the axial direction in the semi-cylindrical shape) are open. The pair of narrow holding bodies 921 are arranged so that the recesses 922 formed on one surface side face each other.

Each of the pair of narrow-holding bodies 921 is provided with a through hole (not shown) that penetrates each of the pair of narrow-holding bodies 921 along the facing direction of the pair of narrow-holding bodies 921. Of the through holes provided in each of the pair of narrow holding bodies 921, threads are formed on the inner peripheral surface of the through holes provided in one of the narrow holding bodies 921a. A rod-shaped shaft 202 having threads on the outer peripheral surface is screwed into the threads formed on the inner peripheral surface of the through hole provided in the narrow holding body 921a.

The other end of the shaft 202 is fixed to the connecting metal fitting 130 through the through hole provided in the other narrow holding body 921b among the through holes provided in each of the pair of narrow holding bodies 921. As a result, the pair of narrow holding bodies 921 are connected via the shaft 202. No thread is formed on the inner peripheral surface of the through hole 112 provided in the other holding body 921b, and the shaft 202 idles with respect to the other holding body 921b.

The pair of narrow holding bodies 921 has an outer diameter of the shaft portion in a state where the distance between the surfaces of the pair of narrow holding bodies 921 that abut each other is such that the pair of gripping bodies 911 contact each other to form a cylindrical shaft portion. It can be separated until the size is larger than the size.

The other end of the shaft 202 is fixed to the support 930 through the through hole provided in the other narrow holding body 921b among the through holes provided in each of the pair of narrow holding bodies 921. The support 930 has a tubular shape with a through hole 112 inside. One end of the support 930 in the length direction (penetration direction of the through hole 112) is fixed to the other narrow holding body 921b. At the other end of the support 930 in the length direction, a connecting metal fitting 130 connected to the other end of the shaft 202 is provided.

The support 930 includes a first support 931 and a second support 932. The first support 931 and the second support 932 are rotatably connected via a shaft 933. No threads are formed on the inner peripheral surface of the through hole 112 provided in the other narrowed body 921b and the inner peripheral surface of the support 930, and the shaft 202 idles with respect to the other narrowed body 921b. .. The support 930 rotates around the axis of the support 930 in conjunction with the rotation of the shaft 202 around the axis.

A bearing 923 is provided on the inner surface of the recess 922. The bearing 923 is configured by sandwiching a rolling element between two cylindrical members having different diameters arranged on concentric circles, and a part of the outer peripheral surface of the large-diameter cylindrical member faces in the recess 922. It is placed in the wrong state. Each bearing 923 is arranged in a state where the axial center direction is parallel to the axial center direction of the recess 922. A plurality of bearings 923 are arranged along the circumference centered on the axis of the recess 922.

Instead of the bearing 923, for example, a rotatable roller (cylindrical body) may be provided around the axis. When a roller is used instead of the bearing 923, the roller is mounted in a state where the axis of the roller is parallel to the axis of the recess 922 and a part of the outer peripheral surface of the roller faces the inside of the recess 922. Further, instead of the bearing 923, for example, a sphere may be used. As the rollers and spheres, for example, those formed by using a material having high hardness such as metal are used.

The narrow holding portion 920 forms a through hole 112 by bringing the pair of narrow holding bodies 921 into contact with each other in a state where the recesses 922 in the pair of narrow holding bodies 921 face each other. The inner diameter of the through hole 112 is equal to or larger than the outer diameter of the shaft portion. More specifically, the inner diameter of the through hole 112 is determined based on the amount of protrusion of the bearing 923 protruding from the surface of the recess 922 in the narrow holding body, and is a circle formed by connecting the apex on the axial center side of the bearing 923. The diameter of the shaft is set to be the same as the outer diameter of the shaft.

One of the narrow holding bodies 921a of the pair of narrow holding bodies 921 is provided with a pawl member 924 that meshes with the ratchet teeth 914 of the ratchet gear. One end of the pawl member 924 is rotatably supported by one of the holding bodies 921a, and the other end is urged to abut on the ratchet gear. Specifically, for example, a compression spring (see reference numeral 1202 in FIG. 12) can be used to urge the other end of the pawl member 924 to abut against the ratchet gear.

(Example of using the coating stripper 900)
Next, an example of using the coating stripper 900 according to the second embodiment of the present invention will be described. In the second embodiment, the same parts as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted. 10 to 15 are explanatory views showing an example of use of the coating stripper 900 according to the second embodiment of the present invention.

When stripping the coating of the coated electric wire 401, first, the pair of narrow holding bodies 921 are separated from each other until the outer diameter of the shaft portion is larger than the outer diameter. Next, the grip portion 910 is attached to the narrow grip portion 920. Specifically, a gap formed between a pair of gripping bodies 911 in which a pair of gripping bodies 911 are brought into contact with each other against the urging force of the urging member 912 in the gripping portion 910. Insert from. At this time, in the facing direction of the pair of narrow holding bodies 921, the position of the gripping portion 910 with respect to the narrowing portion 920 so that the ratchet teeth 914 formed on the outer peripheral surface of each shaft forming member 913 overlap with the pawl member 924. To adjust.

Since the urging member 912 for urging the gripping bodies 911 to be separated from each other is provided between the pair of gripping bodies 911, the shaft portion of the gripping portion 910 is a pair of narrow holding bodies 921. When the compression is released while being positioned between the recesses 922, as shown in FIG. 10, the pair of gripping bodies 911 and the pair of shaft forming members 913 are separated from each other by the urging force of the urging member 912, and each shaft is separated from each other. The outer peripheral surface of the forming member 913 is pressed against the inner peripheral surface of the recess 922 of the narrow holding body so as to abut.

As a result, as shown in FIG. 11, the outer peripheral surface of the bearing 923 comes into contact with the outer peripheral surface of each shaft forming member 913. Further, as shown in FIG. 12, the ratchet gear 1201 formed by the ratchet teeth 914 formed on the outer peripheral surface of each shaft forming member 913 and the pawl member 924 mesh with each other, and the grip portion 910 and the grip portion 910 are narrowly held. The unit 920 is integrated. At this time, the pawl member 924 provided on the narrow holding body 921a bites into the ratchet teeth 914 provided on one shaft forming member 913 and constituting the ratchet gear 1201.

Next, as shown in FIG. 13, the tip of the shared operation rod 300 and the connecting metal fitting 130 are connected, and the narrow holding portion 920 integrated with the grip portion 910 is attached to the tip of the shared operation rod 300. Then, the coated electric wire 401 is guided between the pair of gripping bodies 911 from the opening between the pair of narrowing bodies 921 in the narrowing portion 920, and the coated electric wire 401 is guided between the recesses 922 in the pair of gripping bodies 911. Position. Since the flange member 915 is provided at the tip of the shaft forming member 913, it is possible to prevent the shaft portion 1101 from falling out of the narrow holding body.

Then, as shown in FIG. 14, the shared operation rod 300 is rotated around the axis in a state where the covered electric wire 401 is located between the recesses 922 in the pair of gripping bodies 911. The shaft 202 and the support 930 rotate in conjunction with the rotation of the shared operation rod 300. When the shaft 202 rotates, the tip of the shaft 202 is screwed with the screw thread in the through hole provided in one of the holding bodies 921a. By tightening the shaft 202 to one of the gripping bodies 911a in this way, the pair of narrow holding bodies 921 can be brought close to each other and brought into contact with each other.

Further, since the shaft 202 idles with respect to the other narrow holding body 921b, the pair of narrow holding bodies 921 do not rotate (twist) with the rotation of the shared operation rod 300. Can be brought closer and brought into contact. Then, by bringing the pair of narrow holding bodies 921 into contact with each other, the pair of shaft forming members 913 positioned between the pair of narrow holding bodies 921 can be brought into contact with each other.

In a state where the pair of gripping bodies 911 and the pair of shaft forming members 913 are in contact with each other, the coated electric wire 401 is positioned in the through hole 112 in the gripping portion 910 and in the through hole 112 in the shaft portion 1101, and the blade. The cutting edge of the body 113 bites into the coating of the coated electric wire 401.

Further, in a state where the pair of shaft forming members 913 are in contact with each other, the ratchet gear 1201 composed of the pair of shaft forming members 913 in contact with each other and the pawl member 924 provided in the narrow holding portion 920 are used for ratcheting. The mechanism is configured. In the ratchet mechanism, when a rotational force in the positive direction (counterclockwise direction in FIG. 12) is applied to the ratchet gear 1201, the pawl is urged to lean against the ratchet teeth 914 of the ratchet gear 1201. The member 924 easily gets over the ratchet teeth 914 in the ratchet gear 1201, and the ratchet gear 1201 rotates (forward rotation) in the positive direction. The pawl member 924 gets over the ratchet teeth 914 in the ratchet gear 1201 and then settles in the recess 922 portion between the ratchet teeth 914 and the ratchet teeth 914.

Further, when a rotational force is applied to the ratchet gear 1201 in a direction opposite to the forward direction (clockwise direction in FIG. 12), the pawl member 924 urged to lean against the ratchet gear 1201 is urged. , Bites into the recess 922 portion between the ratchet teeth 914 and the ratchet teeth 914 in the ratchet gear 1201. As a result, the rotation (reverse rotation) of the ratchet gear 1201 in the reverse direction is restricted.

As shown in FIG. 15, in the coating stripper 900 of the second embodiment, the operation of pulling the shared operation rod 300 toward the operator side and the operation of pushing up the shared operation rod 300 toward the coating stripper 900 side are performed. By repeating this, the shaft portion 1101 provided with the ratchet gear 1201, that is, the grip portion 910 rotates (forward rotation) only in the positive direction. Since the inner peripheral surface of the through hole 112 in the grip portion 910 is provided with a spiral ridge, the grip portion 910 moves along the longitudinal direction of the covered electric wire 401 by rotating.

As described above, since the cutting edge of the blade 113 bites into the coating of the coated electric wire 401, the coating stripper 900 moves along the longitudinal direction of the coated electric wire 401 to hold the grip portion 910 of the coated electric wire 401. Rotated around, the blade 113 can continuously strip the coating of the coated wire 401 along the longitudinal direction of the coated wire 401. The coating of the coated electric wire 401 can be stripped by moving the shared operation rod 300 up and down with one hand.

By using the coating stripper 900, the coating of the coated wire 401 can be stripped by moving the shared operation rod 300 up and down with one hand, so that even if there is not enough space around the coated wire 401, If there is enough space to rotate the grip portion 910, the coating of the coated electric wire 401 can be stripped off. Further, according to the coating stripper 900, it is not necessary to attach / detach the shared operation rod 300 when rotating the gripping portion 910.

The operation of moving the shared operation rod 300 up and down is repeated a plurality of times until the coating is stripped over a desired length. Specifically, for example, the tongs (not shown) are grasped with one hand, and the tongs are used to grasp the position of the desired stripping length on the coated electric wire 401. Then, while grasping the tongs with one hand, the shared operation rod 300 is moved up and down with the other hand. After that, when the coating stripper 900 comes into contact with the tongs, the stripped coating is cut by further rotating the grip portion 910. The coating can be stripped over the desired length. By gripping the coated electric wire 401 with the tongs, it is possible not only to determine the stripping length of the coating but also to suppress the swing of the coated electric wire 401 due to the operation of moving the shared operation rod 300 up and down.

(Another use example of the coating stripper 900)
Next, another use example of the coating stripper 900 according to the second embodiment of the present invention will be described. In the second embodiment, the same parts as those in the first embodiment described above are designated by the same reference numerals, and the description thereof will be omitted. 16 and 17 are explanatory views showing another usage example of the coating stripper 900 according to the second embodiment of the present invention.

If there is sufficient space around the covered wire 401, the shared operating rod may be reciprocated below the covered wire 401, as shown in FIGS. 16 and 17. As a result, the amount of rotation of the gripping portion 910 can be increased at one time as compared with the case where the shared operation rod 300 is moved up and down, so that the work efficiency can be further improved.

Further, the coating stripper 900 may be used alone by the worker operating the coating stripper 900 directly by hand without connecting the shared operation rod 300 to the connecting metal fitting 130. can. This makes it possible to provide a highly versatile coating stripper 900 that can be used for purposes other than indirect hot-line work.

As described above, the coating stripper 900 according to the second embodiment of the present invention includes a gripping portion 910 and a narrowing portion 920. Then, the gripping portion 910 in the coating stripper 900 separates the pair of gripping bodies 911 and the pair of gripping bodies 911 in which the semi-cylindrical recesses 922 with both ends open are formed on one side. A through hole provided in at least one of the urging member 912 for urging in the direction and the pair of gripping bodies 911, and formed by combining the pair of gripping bodies 911 with the recesses 922 facing each other. The blade 113 protruding inward of the 112 and the pair of gripping bodies 911 are provided on each of the blades 113, and are arranged on the same circumference centered on the axis of the through hole 112 with respect to the radial direction of the circle. It is characterized by having a plurality of ratchet teeth 914 protruding along an inclined direction.

Further, both ends of the narrow holding portion 920 in the coating stripper 900 are opened, and a semi-cylindrical concave portion 922 having a radius larger than the radius of the circle formed by connecting the tips of the ratchet teeth 914 is formed on one surface side. A pair of narrow-holding bodies 921 and at least one of the pair of narrow-holding bodies 921 are provided in the narrow-holding body 921a, and are formed by combining the pair of narrow-holding bodies 921 with the recesses 922 facing each other. The first position and the first position protruding from the inner peripheral surface of the through hole 112 by a predetermined amount by being rotatably connected and rotated around the axis parallel to the axis direction of the through hole 112. A pawl member 924 that swings between a second position closer to the inner peripheral surface than the position of, and a urging member 912 that urges the pawl member 924 from the second position side to the first position side. It has a rod shape with threads on the outer peripheral surface, one end penetrates one of the narrow holding bodies 921a of the pair of narrow holding bodies 921, and the other end is screwed into the other narrow holding body 921b. A shaft 202 that connects a pair of narrow holding bodies 921 in a connectable manner by rotating around the center, and a connecting metal fitting that is connected to one end of the shaft 202 and can be connected to a connecting portion provided at the tip of the shared operation rod 300. It is characterized by having 130 and.

According to the coating stripping device 900 of the second embodiment according to the present invention, the coating stripping device for the coated electric wire 401 is provided by using one shared operation rod 300 provided with a connecting tool connected to the connecting metal fitting 130 at the tip. The 900 can be attached, the coating can be stripped, and the coating stripper 900 can be removed from the coated wire 401. As a result, the coating can be stripped from the coated electric wire 401 without changing the shared operation rod 300 or the tip tool, and the work of stripping the coating from the coated electric wire 401 can be facilitated.

Further, in the coating stripper 900 according to the second embodiment of the present invention, each of the pair of gripping bodies 911 has a semi-cylindrical shape in which one end side in the axial direction of the through hole 112 has a smaller outer diameter than the periphery. None, the pair of shaft forming members 913 constituting the cylindrical shaft portion 1101 in the state where the through hole 112 is formed, and the ratchet teeth 914 are provided on the outer peripheral surface of the pair of shaft forming members 913. It is characterized by.

According to the coating stripper 900 according to the second embodiment of the present invention, the outer diameter of the shaft portion 1101 connected to the recess 922 in the narrow holding portion 920 in the gripping portion 910 is made smaller than the circumference. The ratchet mechanism can be configured by connecting the gripping portion 910 and the narrowing portion 920 without increasing the size of the narrowing portion 920. As a result, the weight of the coating stripper 900 can be reduced, the coating stripper 900 can be easily handled, and operability and transportability can be improved.

Further, the coating stripper 900 according to the second embodiment of the present invention is provided in the recess 922 and is rotatable around an axial center parallel to the axial center direction of the through hole 112, and is at least one of the outer surfaces. It is characterized by having a bearing 923 having a portion facing into the through hole 112.

According to the coating stripper 900 according to the second embodiment of the present invention, when the narrow holding portion 920 and the gripping portion 910 are connected, the outer surface of the gripping body 911 hits the bearing 923 in the recess 922. Since they are in contact with each other, the rotation of the gripping portion 910 by the ratchet mechanism can be smoothed. As a result, it is possible to reduce the burden on the operator for stripping the coating from the coated electric wire 401, and to facilitate the stripping work of the coating from the coated electric wire 401.

Further, the coating stripper 900 according to the second embodiment of the present invention is rotatable around an axial center parallel to the axial center direction of the through hole 112 instead of the bearing, and is at least a part of the outer surface. May be provided with a rolling element so as to face the inside of the through hole 112.

According to such a coating stripper 900, in a state where the narrow holding portion 920 and the gripping portion 910 are connected, the outer surface of the gripping body 911 abuts on the outer peripheral surface of the rolling element in the recess 922. The rotation of the gripping portion 910 by the ratchet mechanism can be made smooth. This also makes it possible to reduce the burden on the operator in stripping the coating from the coated electric wire 401 and facilitate the stripping work of the coating from the coated electric wire 401.

As described above, the coating stripping device according to the present invention is useful for the coating stripping device that strips the coating of the coated electric wire, and in particular, in the indirect hot-line work performed in a state where the work space is limited, the coated electric wire Suitable for stripping devices that strip the coating.

100 Coating stripper 111, 111a, 111b Grip body 112 Through hole 113 Blade body 110 Grip part 120 Operation part 121, 121a, 121b Plate-like member 122 Locked part 130 Connecting bracket 201 Groove 202 Shaft 300 Common operation rod 401 Covered wire 900 Cover stripper 910 Grip part 911, 911a, 911b Grip body 912 Bounce member 913 Shaft forming member 914 Ratchet tooth 920 Narrowing part 921, 921a, 921b Narrowing body 922 Recessed 923 Bearing 924 930 support 1202 compression spring

Claims (8)

A pair of gripping bodies with semi-cylindrical grooves with open ends formed on one side,
A blade provided on at least one of the gripping bodies of the pair of gripping bodies and protruding inward of a through hole formed by combining the pair of gripping bodies with the grooves facing each other. With the body
A plurality of locked portions provided on each of the pair of gripping bodies and receiving the locking of the hook on the outside of the pair of gripping bodies in a combined state.
It has a rod shape with threads on the outer peripheral surface, one end penetrates the one gripping body, and the other end is screwed into the other gripping body of the pair of gripping bodies, around the axis. A shaft that connects a pair of gripping bodies so that they can be connected to each other by rotating to
A connecting bracket that is connected to one end of the shaft and can be connected to the connecting portion provided at the tip of the shared operation rod.
A coating stripper characterized by being equipped with. Each of the pair of gripping bodies is provided with a plate-shaped member extending in the radial direction of a circle centered on the axis of the through hole.
The coating stripper according to claim 1, wherein the locked portion is a plurality of penetration holes through which the plate-shaped member is penetrated in the plate thickness direction. Each of the pair of grips is provided with a rod-shaped member having one end fixed to the grip and the other end extending in the radial direction of a circle centered on the axis of the through hole.
The coating stripper according to claim 1, wherein the locked portion is a ring or a hook provided at the other end of the rod-shaped member. The locked portion according to any one of claims 1 to 3, wherein the locked portion is arranged on the same circumference centered on an intermediate point between the axes of the plurality of through holes. Decoating device. It is a coating stripper equipped with a gripping part and a narrowing part.
The grip portion is
A pair of gripping bodies with semi-cylindrical grooves with open ends formed on one side,
An urging member that urges the pair of gripping bodies in a direction away from each other,
A blade body provided on at least one of the pair of gripping bodies and protruding toward the inside of a through hole formed by combining the pair of gripping bodies with the grooves facing each other.
A plurality of ratchet teeth provided on each of the pair of gripping bodies, arranged on the same circumference centered on the axis of the through hole, and protruding along a direction inclined with respect to the radial direction of the circle. And with
The narrowed portion is
A pair of narrow holding bodies in which both ends are open and a semi-cylindrical recess having a radius larger than the radius of a circle formed by connecting the tips of the ratchet teeth is formed on one side.
It is provided in at least one of the pair of narrow holding bodies, and is parallel to the axial direction of the through hole formed by combining the pair of narrow holding bodies with the recesses facing each other. A first position that is rotatably connected around the axis and rotates so that a predetermined amount protrudes from the inner peripheral surface of the through hole, and a second position that is closer to the inner peripheral surface than the first position. A pawl member that swings between positions and
An urging member that urges the pawl member from the second position side to the first position side,
It has a rod shape with threads on the outer peripheral surface, one end penetrates one of the pair of narrow holding bodies and the other end is screwed into the other narrow holding body, around the axis. A shaft that connects the pair of narrowed bodies so that they can be connected to each other by rotating to
A coating stripper provided with a connecting metal fitting that is connected to one end of the shaft and is connectable to a connecting portion provided at the tip of a shared operation rod. Each of the pair of gripping bodies has a semi-cylindrical shape in which one end side in the axial direction of the through hole has a smaller outer diameter than the surroundings, and constitutes a cylindrical shaft portion in a state where the through hole is formed. The coating stripping device according to claim 5, further comprising a pair of shaft forming members, wherein the ratchet teeth are provided on the outer peripheral surface of the pair of shaft forming members. It is characterized by having a bearing provided in the recess, which is rotatable around an axis parallel to the axis direction of the through hole and has at least a part of the outer surface facing the inside of the through hole. The coating stripper according to claim 5 or 6. It is characterized by being provided with a rolling element provided in the recess, rotatable around an axis parallel to the axis direction of the through hole, and having at least a part of the outer surface facing the inside of the through hole. The coating stripper according to claim 5 or 6.

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