HK1209911B - Wire gripper - Google Patents

Description

Wire grabbing device

Technical Field

The present invention relates to a wire gripper used for gripping an electric wire by being attached to a device for pulling the electric wire when performing a branching operation of the electric wire.

Background

As a typical conventional wire gripper used for pulling a wire, an electric wire, a cable, or the like, for example, there is a wire gripper shown in fig. 5 of patent document 1. The wire gripper can grip the covered electric wire 6 between the receiving metal fitting 3 provided on the wire gripper body 1 and the pressing metal fitting 5 attached to the swing lever 2. When the handle 4 is operated, the swing lever 2 is rotated, and the pressing metal 5 moves toward the receiving metal 3.

(Prior art document)

(patent document)

Patent document 1: japanese patent No. 3415370

Disclosure of Invention

(problems to be solved by the invention)

In the wire gripper, the swing lever 2 is rotatably attached to the wire gripper body 1 by a metal shaft.

The wire grip 1 holds the tension of the overhead distribution wire in the process, and when the handle 4 is pulled, an excessive force, for example, a shearing force is applied to the swing lever 2 and the shaft attached to the wire grip main body 1, and there is a possibility that the shaft or the periphery of the hole of the wire grip main body 1 may be damaged.

However, if the wire grabber body 1 or the shaft is thickened in order to increase the firmness, the weight increases, and it is difficult to use the wire grabber as a wire grabber used at a high position.

It is therefore a primary object of the above invention to provide a light weight and strong wire grabber.

(means for solving the problems)

The first technical scheme of the invention relates to a wire grabbing device which comprises: a fixed grasping body having a linear body pressing portion; a swing member swingably attached to the fixed grip body with a support shaft; a movable grasping body that swings toward the linear body pressing portion of the fixed grasping body by the swing of the swing member, and that has a linear body holding portion; and a connecting member connected to the swing member and swinging the swing member, wherein the fixed grip body has a circular protrusion formed around a hole into which a support shaft to which the swing member is attached is inserted, so as to protect the support shaft.

In the thread grasping device according to the second aspect of the present invention, in addition to the thread grasping device according to the first aspect, an arc-shaped protrusion different from the protrusion is formed along the hole edge at a position apart from the hole edge of the hole into which the support shaft is inserted.

The invention relates to a third technical scheme, which comprises the following components: a fixed grasping body having a linear body pressing portion; a swing member swingably attached to the fixed grip body with a support shaft; a movable grasping body that swings toward the linear body pressing portion of the fixed grasping body by the swing of the swing member, and that has a linear body holding portion; and a connecting member that is connected to the swing member and swings the swing member, wherein the fixed grip body has a protrusion extending toward the linear body pressing portion in the vicinity of a hole into which a support shaft to which the swing member is attached is inserted.

In the thread catcher according to the fourth aspect of the present invention, in addition to the thread catcher according to the third aspect, the ridge is linear, and a plurality of the ridges are formed at equal intervals from the hole edge of the hole.

In the thread catcher according to a fifth aspect of the present invention, in addition to the thread catcher according to any one of the first to fourth aspects, the circular-shaped protrusion is formed on a side on which the coupling member is attached, and the protrusion extending toward the linear body pressing portion is formed on a side opposite to the side on which the coupling member is attached.

(Effect of the invention)

According to the present invention, a wire gripper includes: a fixed grasping body having a linear body pressing portion; a swing member swingably attached to the fixed grip body with a support shaft; a movable grasping body that swings toward the linear body pressing portion of the fixed grasping body by the swing of the swing member, and that has a linear body holding portion; and a connecting member connected to the swing member and swinging the swing member, wherein the fixed grip body has a circular protrusion formed around a hole into which a support shaft to which the swing member is attached is inserted to protect the support shaft, thereby providing a lightweight and strong wire grip.

According to the second aspect of the invention, since the arc-shaped protrusion different from the protrusion is formed along the hole edge at a position apart from the hole edge of the hole into which the support shaft is inserted, the periphery of the hole into which the support shaft is inserted can be made stronger.

According to the invention of the third technical means, the wire gripper comprises: a fixed grasping body having a linear body pressing portion; a swing member swingably attached to the fixed grip body with a support shaft; a movable grasping body that swings toward the linear body pressing portion of the fixed grasping body by the swing of the swing member, and that has a linear body holding portion; and a connecting member that is connected to the swinging member and swings the swinging member, wherein the fixed grip body has a protrusion extending toward the linear body pressing portion formed in the vicinity of a hole into which a support shaft to which the swinging member is attached is inserted, and therefore a lightweight and strong wire grip can be provided.

According to the fourth aspect of the invention, since the plurality of projections are formed linearly at equal intervals from the hole edge of the hole, the periphery of the hole into which the support shaft is inserted can be made more firm.

According to the fifth aspect of the invention, since the circular-shaped projecting strip is formed on the side on which the coupling member is attached and the projecting strip extending toward the linear body pressing portion is formed on the side opposite to the side on which the coupling member is attached, the region on which the coupling member is attached can be made stronger.

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.

Drawings

Fig. 1 is a perspective view showing an overall structure of a wire gripper according to an embodiment of the present invention.

Fig. 2 is a perspective view schematically showing components constituting the thread catcher shown in fig. 1.

Fig. 3 is a front view of the fixed grip body.

Fig. 4 is a rear view of the fixed grip body.

Fig. 5A is a left side schematic view of a fixed grip body.

Fig. 5B is a schematic left side view, partially in section, of the fixed grip body.

Fig. 6 is a perspective view showing a main part of the fixed grip body.

Fig. 7 is a schematic front view showing an operating state of the wire gripper.

Fig. 8 is a schematic front view showing an operation state of the wire gripper.

Fig. 9 is a schematic sectional view showing a state in which the fixed grip body and the swing member are attached to each other.

Fig. 10A is a schematic view of fig. 8 taken along direction a.

Fig. 10B is a schematic view of the direction a of fig. 8.

Fig. 11 is a side view schematically showing a state in which the fixed grip body and the movable grip body are attached to each other.

Fig. 12 is a perspective view showing an attached state of the energizing member.

Fig. 13 is a perspective view showing an attached state of the energizing member.

Fig. 14 is a perspective view showing an attached state of the energizing member.

Fig. 15 is an explanatory view of the wire gripper.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings for understanding the present invention. The embodiments described below are merely examples embodying the present invention, and do not limit the technical scope of the present invention.

The thread catcher 10 according to an embodiment of the present invention includes: a fixed grip body 12 having a linear body pressing portion 24; a swing member 14 swingably attached to the fixed grasping body 12 by a support shaft 70; a movable grasping body 16 that swings toward the linear body pressing portion 24 of the fixed grasping body 12 by the swing of the swing member 14 and has a linear body holding portion; and a connecting member 18 connected to the swing member 14 to swing the swing member 14.

The fixed grip body 12 has a substantially U-shape in front view, and has a substantially L-shaped main body 22, a linear body pressing portion 24 formed to extend in the longitudinal direction of the upper portion of the main body 22, and a connecting member guide portion 26 provided to protrude rearward from the lower portion at the rear portion of the main body 22.

The main body 22 has a horizontal portion extending along one side (a direction) of the pulling link member 18 and one side (b direction) of the pushing link member 18, and a vertically extending portion provided perpendicularly to the pushed-back side (b direction) of the horizontal portion.

The linear body pressing portion 24 has a brim shape protruding toward the front side at the upper portions of the horizontal portion and the vertical extending portion of the body 22 and the connecting member guide portion 26, and has a holding groove 24a formed on the lower surface thereof.

The coupling member guide 26 extends from the side (a direction) of the horizontal portion of the body 22, which pulls the coupling member 18, to the side opposite to the linear body pressing part 24, i.e., downward.

The coupling member guide portion 26 is provided with a guide hole 28 for inserting and guiding the coupling member 18 therethrough, and the coupling member 18 rotatably supported by the swing member 14 is inserted into and held by the guide hole 28.

A support shaft hole 30 for pivotally supporting the swinging member 14 with a support shaft 70 is provided through a vertically extending portion of the main body 22 of the front portion of the fixed grip body 12.

The spindle hole 30 is a circular hole provided through the main body 22 from the front side (front surface side) to the rear side (rear surface side) of the main body 22, and extends in the horizontal direction.

The fixed grip body 12 is formed with a protruding strip 32 protruding along the hole edge of the support shaft hole 30 around the hole edge to protect the support shaft 70 that pivotally supports the swing member 14.

The ridge 32 is a rib (rib) which is formed continuously from the lower portion to the front side, the upper portion, and the rear side of the spindle hole 30 and is mainly circular.

The protrusion 32 protrudes from the main body 22 in the extending direction of the outer peripheral edge of the hole of the support shaft hole 30 (extending direction of the shaft center 70a of the support shaft 70).

The top 32a of the ridge 32 is planar and extends in a direction intersecting the direction in which the hole peripheral edge of the spindle hole 30 extends, i.e., in a vertical direction. The top 32a of the ridge 32 has a plane parallel to the front side surface of the main body 22 and the holding groove 24a of the linear body pressing portion 24, and the peripheral edge of the ridge 32 has a substantially trapezoidal shape in cross section extending in a direction intersecting the front side surface of the main body 22. The height of the ridge 32 is substantially the same as the width of the main body 22, has substantially the same cross-sectional shape as a whole, and has substantially the same height.

The ridge 32 has a tapered shape (taper) in which the width gradually decreases toward the upper end (top 32a), and the width of the lower end thereof is substantially the same as the width of the body 22.

The ridge 32 constitutes a seat for placing the swing member 14.

The bead 32 is integrally formed with the body 22 using metal.

An arc-shaped protrusion 40 different from the protrusion 32 is formed along the hole edge of the support shaft hole 30 into which the support shaft 70 is inserted, at a position apart from the hole edge.

The arc-shaped protrusion 40 is a rib (rib) which is formed continuously from the lower portion to the front side of the spindle hole 30 and is mainly considered to be arc-shaped.

The protrusion 40 protrudes from the main body 22 along the extending direction of the outer peripheral edge of the hole of the support shaft hole 30 (the extending direction of the axial center 70a of the support shaft 70).

A lower portion of the rear side of the ridge 40 [ the direction in which the coupling member 18 is pulled (the direction a in fig. 15) ] is notched, and a recess 42 for allowing movement of the spring is provided.

The ridge 40 is formed as a concentric circle surrounding the ridge 32 with a substantially equal interval from the outer peripheral edge of the ridge 32, and a spring groove 44 is formed between the ridge 40 and the ridge 32.

The top 40a of the ridge 40 is planar and extends in a direction intersecting the direction in which the hole peripheral edge of the spindle hole 30 extends, i.e., in a perpendicular direction. The top 40a of the ridge 40 has a plane parallel to the front side surface of the main body 22 and the holding groove 24a of the linear body pressing portion 24, and the peripheral edge of the ridge 40 has a substantially trapezoidal shape in cross section extending in a direction intersecting the front side of the main body 22.

The ridge 40 has substantially the same height as the ridge 32, substantially the same length as the width of the main body 22, substantially the same cross-sectional shape as a whole, and substantially the same height.

The ridge 40 has a tapered shape in which the width thereof gradually decreases toward the upper end (top 40a), and the width of the lower end thereof is substantially the same as the width of the body 22.

The ridge 40 constitutes a seat for placing the swing member 14.

The bead 40 is integrally formed with the body 22 using metal.

In the fixed grip body 12, a plurality of linear protrusions are formed in the vicinity of the spindle hole 30 into which the spindle 70 for attaching the swing member 14 is inserted, on the surface opposite to the surface on which the protrusions 32 and the protrusions 40 are formed. In the present embodiment, a first linear protrusion 50 and a second linear protrusion 52 extending from a lower portion of the vertically extending portion toward the linear body pressing portion 24 are formed on the vertically extending portion of the main body 22 with an appropriate interval left.

The first linear protrusions 50 and the second linear protrusions 52 are linear, have flat top portions, have a substantially trapezoidal cross section parallel to the front side surface of the main body 22, have a height substantially equal to the width of the main body 22, have substantially the same cross section as a whole, and have substantially the same length and substantially the same height.

The first linear protrusion 50 and the second linear protrusion 52 are formed in parallel with each other at an appropriate interval from the hole edge of the spindle hole 30. The first linear protrusion 50 and the fulcrum hole 30 and the second linear protrusion 52 and the fulcrum hole 30 are equally spaced. The first linear protrusions 50 and the second linear protrusions 52 extend in a direction intersecting the direction in which the coupling member 18 is pulled (direction a in fig. 15).

The circular-shaped protrusion 32 is formed on the side of the body 22 extending vertically (the side on which the swing member 14 is attached) to which the coupling member 18 is attached, and the first linear protrusion 50 and the second linear protrusion 52 extending toward the linear body pressing portion 24 are formed on the surface of the body 22 extending vertically opposite to the side on which the coupling member 18 is attached.

The swing member 14 has a substantially triangular shape in front view, and has a fixed grip body mounting hole 60 through which the support shaft 70 is inserted at an upper front inner corner portion, a movable grip body mounting hole 62 through which the pivot shaft 74 is inserted at an upper rear inner corner portion, and a coupling member mounting hole 64 through which the pivot shaft 72 is inserted at a lower rear inner corner portion.

The proximal and distal surfaces of the peripheries of the fixed gripper attachment hole 60, the movable gripper attachment hole 62, and the coupling member attachment hole 64 are each raised higher than the other, and the top of the raised portion is a vertical plane perpendicular to the direction in which the peripheral edge of the hole extends. That is, the top 60a of the bulge portion around the hole on the far side of the fixed grip body attachment hole 60 and the top 60b of the bulge portion around the hole on the near side, the top 62a of the bulge portion around the hole on the far side of the movable grip body attachment hole 62 and the top 62b of the bulge portion around the hole on the near side, and the top 64a of the bulge portion around the hole on the far side of the coupling member attachment hole 64 and the top 64b of the bulge portion around the hole on the near side are formed in parallel to each other so as to be orthogonal to the extending direction of the hole edges (outer peripheral edges of the holes) of the fixed grip body attachment hole 60, the movable grip body attachment hole 62, and the coupling member attachment hole 64.

The sliding contact surface of the top portion 60a of the bulging portion formed in the periphery of the proximal side of the fixed grip body attachment hole 60 and in the periphery of the distal side hole (sliding contact surface in sliding contact with the top portion 32a of the protrusion 32 and the top portion 40a of the protrusion 40) is formed as a vertical surface perpendicular to the rotation axis of the swing member 14 (the axis of the support shaft 70) and parallel to the holding groove 24a of the fixed grip body 12 and the holding groove 100 of the movable grip body 16.

The sliding contact surfaces (sliding contact surfaces that are in sliding contact with the attachment surface of the movable grip 16) of the top portion 62a of the bulging portion around the hole on the far side and the top portion 62b of the bulging portion around the hole on the near side, which are formed around the periphery of the hole on the far side and the near side of the movable grip attachment hole 62, are formed as vertical surfaces so as to be orthogonal to the rotation axis (the axial center of the rotation axis 74) of the movable grip 16 and parallel to the clamping groove 24a of the fixed grip 12 and the clamping groove 100 of the movable grip 16.

The sliding contact surface of the top portion 64a of the bulging portion formed in the periphery of the remote side of the coupling member mounting hole 64 and in the periphery of the remote side hole (sliding contact surface in sliding contact with the mounting surface of the coupling member 18) is formed as a vertical surface so as to be orthogonal to the rotation axis (axial center of the rotation axis 72) of the coupling member 18 and to be parallel to the clamping groove 24a of the fixed grasping body 12 and the clamping groove 100 of the movable grasping body 16.

The swing member 14 is joined to a protrusion 32 formed on the fixed grip body 12, and is mounted on the fixed grip body 12 by a support shaft 70 at one end thereof with the support shaft 70 being a pivot shaft, with the support shaft hole 30 and the fixed grip body mounting hole 60 being aligned in a straight line.

The swinging member 14 has one end of the connecting member 18 joined to the other end thereof, and the swinging member mounting hole 82 of the connecting member 18 and the connecting member mounting hole 64 of the swinging member 14 are aligned in a straight line and rotatably mounted by the rotating shaft 72.

The swing member 14 is rotatably attached to the movable gripper 16 by a rotating shaft 74 in a movable gripper attachment hole 62 provided in a position adjacent to the fixed gripper attachment hole 60.

The coupling member 18 is a rod-shaped body having a longitudinal direction, a swing member attachment hole 82 is formed through the front portion of the prism-shaped coupling member body 80, and a coupling hole 84 is formed in the rear portion of the coupling member body 80.

The coupling member mounting hole 64 of the swing member 14 and the swing member mounting hole 82 of the coupling member 18 have the same diameter, and are arranged such that the outer peripheral edges of the holes are parallel to each other. The connecting member 18 is rotatably attached to the swing member 14 by the main body 22 via a rotating shaft 72, and the rotating shaft 72 is inserted into a swing member attachment hole 82 of the connecting member 18 from the connecting member attachment hole 64 of the swing member 14.

The guide hole 28 of the fixed grip 12 is formed at substantially the same height as the spindle hole 30, and the fixed grip attachment hole 60 of the swing member 14 is formed at substantially the same height as the spindle hole 30 and the guide hole 28 of the fixed grip 12. Therefore, the coupling member 18 attached to the coupling member attachment hole 64 formed below the fixed grip body attachment hole 60 of the swing member 14 is inserted through the coupling member 18 of the fixed grip body 12, and is lifted toward the side (direction a shown in fig. 15) where the coupling member 18 is pulled.

The coupling member 18 may be in contact with the lip of the guide hole 28 on the side away from the spindle hole 30, i.e., on the side where the coupling member 18 is pulled (the direction a in fig. 15), so that the force acting on the coupling member main body 80 of the coupling member 18 is reduced.

Support shaft 70 has a cylindrical shape having a shaft center 70a extending in the longitudinal direction, and has a flange portion 70b protruding in a direction intersecting shaft center 70a on the front side thereof. The support shaft 70 is fitted into the fixed grip mounting hole 60 of the swing member 14, and the support shaft 70 is mounted to the fixed grip 12 and the swing member 14 by engaging the flange portion 70b with the periphery of the fixed grip mounting hole 60 and by screwing the support shaft hole 30 of the fixed grip 12. The shaft center 70a of the support shaft 70 serves as the center of rotation of the swing member 14. Fulcrum 70 may also be riveted to the distal side of fulcrum aperture 30.

The rotating shaft 72 has a cylindrical shape having a shaft center 72a extending in the longitudinal direction, and has a flange portion 72b protruding in a direction intersecting the shaft center 72a on the front side thereof. The pivot shaft 72 is fitted to the coupling member mounting hole 64 of the swing member 14 from the front side and fitted to the swing member mounting hole 82 of the coupling member 18 from the front side, and is attached to the swing member 14 and the coupling member 18 by being caulked to the remote side of the swing member mounting hole 82. The axial center 72a of the rotating shaft 72 serves as the center of rotation of the coupling member 18.

The rotating shaft 74 has a cylindrical shape having a shaft center 74a extending in the longitudinal direction, and has a flange portion 74b protruding in a direction intersecting the shaft center 74a on the remote side. The pivot shaft 74 is fitted and inserted into the movable grip mounting hole 62 of the swing member 14 from the other swing member mounting hole 98 on the far side of the movable grip 16, and is fitted and inserted into the one swing member mounting hole 96, and the flange portion 74b is fixed by the cotter pin 76 at a portion that is joined to the periphery of the other swing member mounting hole 98 and protrudes toward the near front side of the one swing member mounting hole 96 on the near front side of the movable grip 16. The axis 74a of the rotating shaft 74 serves as the center of rotation of the movable gripper 16.

The outer periphery of the other swing member attachment hole 98 on the side away from the other side is formed in an annular step in the circumferential direction. When the flange portion 74b of the rotating shaft 74 is fitted and inserted into the annular step portion 98a, the surface on the side away from the flange portion 74b of the rotating shaft 74 and the side away from the other rocking member mounting portion 94 are continuous in a plane.

The spindle hole 30 has the same diameter as the fixed grip body attachment hole 60 of the swing member 14, and is arranged such that the outer peripheral edge of the hole is parallel.

The extending direction of the peripheral edge of the support shaft hole 30 is parallel to the extending direction of the peripheral edges of the fixed gripper attachment hole 60, the movable gripper attachment hole 62, and the coupling member attachment hole 64, and the axial center 70a of the support shaft 70, the axial center 72a of the rotating shaft 72, and the axial center 74a of the rotating shaft 74.

An energizing member 110 formed of a coil spring is provided between the fixed grip 12 and the swing member 14, and the energizing member 110 energizes the swing member 14 toward the pulled side of the coupling member 18.

The energizing member 110 inserts the coil portion 112 into the spring slot 44 of the fixed grip 12.

The energizing member 110 fixes a linear first hook 114 extending from the near side of the coil portion 112 to the hook hole 66 formed in the far side surface of the swing member 14, and fixes a linear second hook 116 extending from the far side of the coil portion 112 to the hook hole 48 formed in the near side surface of the main body 22 of the fixed grip body 12.

The first hooking portion 114 is formed in a state of pulling the coupling member 18 in a no-load state and is fixed to the hooking hole 66 of the swing member 14, and the energizing member 110 energizes the coupling member 18 so as to be in a state of being pulled from a side where the coupling member 18 is pushed back in a pull-back direction (a direction shown in fig. 15) to a pull-out side (a direction shown in fig. 15).

The protrusion 40 of the fixed grip body 12 is provided with a recess 42 and is provided from the lower portion to the front portion of the fulcrum hole 30 without being formed within the operation range of the first hooking portion 114.

As shown in FIG. 11, the movable grip member 16 is formed in a sectional shapeThe rectangular shape has one swing member attachment portion 92 and the other swing member attachment portion 94 arranged in parallel in the front-rear direction, one swing member attachment hole 96 is provided through the one swing member attachment portion 92, and the other swing member attachment hole 98 is provided through the other swing member attachment portion 94.

The movable grip body 16 has a grip groove 100 formed in an upper surface thereof to accommodate a lower portion of the linear body W, and the grip groove 100 is formed to face a grip groove 24a formed in a lower surface of the fixed grip body 12.

The movable gripper 16 is attached to the swing member 14 by placing one swing member attachment portion 92 and the other swing member attachment portion 94 over the rear portion of the swing member 14, and aligning one swing member attachment hole 96 and the other swing member attachment hole 98 with the movable gripper attachment hole 62 of the swing member 14.

The movable grip 16 is rotatably attached to the swing member 14 by the rotating shaft 74 inserted through one of the swing member attachment holes 96, the other swing member attachment hole 98, and the movable grip attachment hole 62, which are aligned in a straight line.

The movable grip mounting hole 62 of the swing member 14 has the same diameter as the swing member mounting hole 96 of the one side and the swing member mounting hole 98 of the other side of the movable grip 16, and the outer peripheral edges of these holes are arranged in parallel.

The surfaces (inner surfaces of the respective swing member mounting portions) of the one swing member mounting portion 92 and the other swing member mounting portion 94 that face each other are parallel vertical surfaces, and are mounted to the swing member 14 so as to be parallel to the top portion 32a of the ridge 32 and the top portion 40a of the ridge 40.

The surfaces (inner surfaces) of the one swinging member attachment portion 92 and the other swinging member attachment portion 94 that face each other are orthogonal to the extending direction of the outer peripheral edges of the holes of the one swinging member attachment hole 96 and the other swinging member attachment hole 98, and are orthogonal to the shaft center 74a of the rotating shaft 74.

The movable grip body 16 attached to the swing member 14 swings about the axial center 74a of the pivot shaft 74.

The range of rotation of the movable grip member 16 may be limited as long as it can correct the degree of rotation of the upper surface of the movable grip member from being parallel to the lower surface of the linear body pressing portion 24 of the fixed grip member 12 due to the rotation of the swing member 14.

The movable grip member 16 is attached to the swing member 14 such that the holding groove 100 is positioned directly below the holding groove 24a of the fixed grip member 12 and the holding groove 100 of the movable grip member 16 faces the holding groove 24a of the fixed grip member 12.

The swing member 14 is attached to the front side of the top portion 32a of the protrusion 32 of the fixed grip body 12 and the front side of the top portion 40a of the protrusion 40 so that the holding groove 100 of the movable grip body 16 attached to the swing member 14 is positioned directly below the holding groove 24a of the fixed grip body 12 and the holding groove 100 of the movable grip body 16 faces the holding groove 24a of the fixed grip body 12.

The connecting member main body 80 of the connecting member 18 is attached to the swing member 14 so as to be parallel to the top portions 32a of the ribs 32 and the top portions 40a of the ribs 40 below the ribs 32 and the ribs 40 of the fixed grip body 12 and extend in the extending direction of the gripping groove 24a of the fixed grip body 12 and the gripping groove 100 of the movable grip body 16. The coupling member 18 rotates about the axial center 72a of the rotating shaft 72.

The heights of the ridge 32 and the ridge 40 of the fixed grip body 12 are set to be constant so that the near-front side surfaces of the ridge 32 and the ridge 40 (the sliding contact surfaces of the top portion 32a and the top portion 40a facing the top portion 60a of the bulge portion around the hole of the fixed grip body attachment hole 60 of the swing member 14) are parallel to the extending direction of the grip groove 24a of the fixed grip body 12 and orthogonal to the axial center 70a of the support shaft 70 below the grip groove 24a of the fixed grip body 12.

The sliding contact surfaces of the top portion 32a of the ridge 32 and the top portion 40a of the ridge 40 are parallel surfaces facing the sliding contact surfaces of the top portions of the bulging portions around the holes of the fixed grasping body mounting hole 60, the movable grasping body mounting hole 62, and the coupling member mounting hole 64 (the top portion 60a of the bulging portion around the hole on the far side, the top portion 62a of the bulging portion around the hole on the far side, the top portion 64a of the bulging portion around the hole on the far side, the top portion 60b of the bulging portion around the hole on the near side, the top portion 62b of the bulging portion around the hole on the near side, and the top portion 64b of the bulging portion around the hole on the near side). The top portion 32a of the ridge 32 and the top portion 40a of the ridge 40 are in surface contact with the bulge portion around the fixed gripper attachment hole 60 (the top portion 60a of the bulge portion around the hole on the far side) so that the swing member 14 rotates about the axial center 70a of the rotation shaft 70.

The vertical plane P is formed to contact the top 32a of the ridge 32 and the top 40a of the ridge 40₁Passes inside the guide hole 28 of the coupling member guide portion 26.

A vertical plane P passing through the near-front side surface of the periphery of the fixed grip body attachment hole 60 and the near-front side surface of the periphery of the movable grip body attachment hole 62 of the swing member 14 (sliding contact surface of the top 62b of the bulge portion of the periphery of the near-front side hole)₂And a vertical plane P passing through a distant side surface of the periphery of the fixed grip body attachment hole 60 of the swing member 14 and a distant side surface of the periphery of the movable grip body attachment hole 62 (a sliding contact surface of a top portion 62a of the bulging portion of the periphery of the hole of the distant side)₃With the axial center 70a of the rotating shaft 70 and the rotating shaft 7The axial center 72a of the shaft 2 and the axial center 74a of the rotating shaft 74 are perpendicular to and parallel to the holding groove 24a of the fixed grip body 12. The structure is such that a vertical plane P passing through a distant side surface of the periphery of the fixed grip body attachment hole 60 of the swing member 14 and a distant side surface of the attachment coupling member 18 of the movable grip body attachment hole 62 (a sliding contact surface of the top 64a of the bulging portion in the periphery of the hole on the distant side) is formed₃Perpendicular to the axial center 70a of the rotating shaft 70, the axial center 72a of the rotating shaft 72, and the axial center 74a of the rotating shaft 74, and passes through the inside of the guide hole 28 of the coupling member guide portion 26.

Plane P in contact with top 32a of ridge 32 and top 40a of ridge 40₁A plane P passing through a near-front side surface of the periphery of the movable grip body attachment hole 62 (a sliding contact surface of the top portion 62b of the bulge portion of the periphery of the near-front side hole)₂And a plane P passing through a far side surface of the periphery of the fixed grip body mounting hole 60 (a sliding contact surface of the top portion 60a of the bulging portion of the periphery of the far side hole) and a far side surface of the periphery of the movable grip body mounting hole 62 (a sliding contact surface of the top portion 62a of the bulging portion of the periphery of the far side hole)₃Are parallel to each other, and constitute a plane perpendicular to the axial center 70a of the rotating shaft 70, the axial center 72a of the rotating shaft 72, and the axial center 74a of the rotating shaft 74.

Hereinafter, a procedure of attaching and detaching the wire gripper 10 configured as described above to and from the linear body W will be described.

First, the connecting member 18 is pressed toward the push-back side (b direction shown in fig. 15) to bring the movable grip body 16 into a state sufficiently separated from the fixed grip body 12, thereby facilitating the passage of the linear body W between the fixed grip body 12 and the movable grip body 16.

As shown in fig. 8, the wire gripper 10, which is formed in a state in which the fixed gripping body 12 and the movable gripping body 16 are sufficiently separated from each other, is moved to a predetermined portion of the linear body W, the linear body W is inserted between the fixed gripping body 12 and the movable gripping body 16, the upper portion of the linear body W is accommodated in the grip groove 24a formed in the lower surface of the fixed gripping body 12, and the wire gripper 10 is attached to be suspended from the linear body W.

When the above-described attachment of the wire grip 10 to the linear body W is applied to a branching process of an electric wire, the wire grip 10 is attached to two positions of the electric wire at an interval corresponding to a length of a wire tensioner for drawing the electric wire from both sides. Coupling means are provided at both ends of the thread tensioner, and the coupling means are coupled to the thread gripper 10 through coupling holes 84 formed in the coupling member 18. After the wire tensioner is coupled at both ends to the wire grabbers 10 on both sides, a force pulling in the direction a shown in fig. 15 is applied to the coupling member 18 of the wire grabber 10 by performing an operation of shortening the length thereof.

When the connecting member 18 is pulled in the direction of fig. 15 a, the swing member 14 connected to the one end side of the connecting member 18 pivots in the direction of fig. 15 c about the support shaft 70. By the rotation of the swinging member 14, the movable grip member 16 is pushed up in the direction of the fixed grip member 12, and the lower portion of the linear body W is accommodated in the holding groove 100, and the linear body W is held between the fixed grip member 12 and the movable grip member W as shown in fig. 7.

When a pulling force is further applied by the wire tensioner in the direction of a shown in fig. 15, the linear body W gripped by the wire grippers 10 is pulled in the direction of a shown in fig. 15, whereby the wire grippers 10 on both sides are pulled closer to each other, and the linear body W positioned between the wire grippers 10 on both sides is loosened, so that a state in which the wire dividing process can be performed is obtained.

In the above-described operation of attaching the wire grip 10, since the operation of attaching the wire grip 10 to the linear body W and the operation of connecting the pulling unit such as the wire tensioner to the connecting member 18, which should be performed by the operator, can be performed all from the front side, it is possible to easily and safely perform the operation of performing both high-level operation and dangerous operation such as the wire dividing work of the electric wire.

When the wire gripper 10 attached to the linear body W is detached, if the connected state by the wire tensioner or the like connected to the connecting member 18 is released, the movable grip body 16 is separated from the linear body W, and therefore the grip of the linear body W can be released.

(availability in industry)

The wire grabber according to the present invention can be applied not only to electric wires but also to linear bodies for pulling grape trellis and trees.

(description of reference numerals)

10, a wire gripper; 12 fixing the grasping body; 14 a swing member; 16 a movable grasping body; 18 a connecting member; 22 a main body; 24a linear body pressing part; 24a, 100 clamping grooves; 26 connecting the component guiding part; 28 guiding holes; 30 shaft holes; 32. 40 protruding strips; 32a, 40a top; 42, a recess; 44 a groove for a spring; 48. 66 hook hanging holes; 50 a first linear ridge; 52 second linear projections; 60 fixing the mounting hole of the gripping body; 60a, 62a, 64a are away from the top of the bulge of the periphery of the hole on the side; 60b, 62b, 64b, the top of the bulge around the hole on the near side; 62 movable grasping body mounting holes; 64 connecting member mounting holes; 70 fulcrum; 70a, 72a, 74a axes; 70b, 72b, 74b flange portions; 72. 74 rotating the shaft; 76 cotter pin; 80 connecting the member main body; 82 swing member mounting holes; 84 a connecting hole; 92 one swing member mounting portion; 94 the other swing member mounting part; 96 one swing member mounting hole; 98 the other swing member mounting hole; 98a step difference portion; 110 energizing means; 112 coil portions; 114 a first hook portion; 116 a second hook; a W-shaped linear body.

Claims (3)

1. A wire gripper is provided with:

a fixed grip body having a main body and a linear body pressing portion formed on an upper portion of the main body;

a swing member swingably attached to the fixed grip body with a support shaft;

a movable grasping body that swings toward the linear body pressing portion of the fixed grasping body by the swing of the swing member, and that has a linear body holding portion; and

a connecting member that is connected to the swinging member and swings the swinging member,

the fixed grasping body is formed with a circular-shaped protrusion strip around a hole into which a fulcrum shaft to which the swing member is attached is inserted, for protecting the fulcrum shaft,

an arc-shaped protrusion different from the circular protrusion is formed along a hole edge of the spindle hole into which the spindle shaft is inserted at a position apart from the hole edge,

a spring groove is formed between the circular protrusion strip and the arc protrusion strip,

the circular-shaped projecting strip and the circular arc-shaped projecting strip are integrally formed with the fixed grip body,

the groove for spring is formed to insert the coil part of the energizing member for energizing the swinging member,

the arc-shaped protrusion has a recess for allowing the energizing member to move,

the concave part of the arc-shaped protruding strip is formed in the action range of the hooking part of the energizing component,

the circular-shaped protrusions have substantially the same height as the circular-arc protrusions,

the top of the circular protrusion and the top of the arc protrusion are formed to mount a swing member so as to be in sliding contact with the swing member.

2. The thread catcher as claimed in claim 1, comprising:

a fixed grasping body having a linear body pressing portion;

a swing member swingably attached to the fixed grip body with a support shaft;

a movable grasping body that swings toward the linear body pressing portion of the fixed grasping body by the swing of the swing member, and that has a linear body holding portion; and

a connecting member that is connected to the swinging member and swings the swinging member,

wherein the fixed grasping body is formed with a circular-shaped protrusion strip around a hole into which a fulcrum shaft to which the swing member is mounted is inserted, for protecting the fulcrum shaft,

an arc-shaped protrusion different from the circular protrusion is formed along a hole edge of the spindle hole into which the spindle shaft is inserted at a position apart from the hole edge,

a spring groove is formed between the circular protrusion strip and the arc protrusion strip,

the circular-shaped projecting strip and the circular arc-shaped projecting strip are integrally formed with the fixed grip body,

the fixed grasping body is also provided with a linear projecting strip extending towards the linear body pressing part near a hole inserted into a fulcrum shaft for mounting the swinging component,

the linear protrusions are formed on a surface opposite to a surface on which the circular protrusions and the circular-arc protrusions are formed.

3. The wire grabber of claim 2,

the circular-shaped protrusion is formed at one side where the coupling member is mounted,

the protruding strip extending toward the linear body pressing part is formed on the opposite side of the side where the connecting member is mounted.