Rod-shaped connecting structure

Abstract

To provide a rod body coupling structure capable of further securing safety.SOLUTION: A coupling structure 10 for coupling a coupled part to a rod body comprises a first coupling member 50 arranged in an area on a rod body side, and a second coupling member 80 arranged in an area on a coupled part side coupled to the rod body. Fixing means 16 constituting separation prevention means to prevent a part coupled by the coupling structure from separating is arranged on the rod body in an area on the coupled part side coupled to the rod body, and in the second coupling member, fixing means for stopping the fixing means on the rod body side is formed in an area on the coupled part side coupled to the rod body. The first coupling member is arranged on a rod body side movably in an axial direction of the rod body. When the coupled part is mounted to the rod body, the first coupling member is fixed in an area of the second coupling member on the first coupling member side by the fixing means, controls movement of the second coupling member, and is formed so that the fixing means on the rod body side is not detached from the fixing means formed in the second coupling member.SELECTED DRAWING: Figure 1

Description

Technical Field

[0003] , , , , ,

[0001] The present invention relates to a connection structure of rod bodies, and particularly to a connection structure between an insulating operating rod for indirect work used in, for example, indirect live-line work and a tip tool connected thereto.

Background Art

[0002] Conventionally, several proposals have been made regarding the connection structure between an indirect live-line work tool and an insulating operating rod for indirect live-line work (Patent Documents 1 to 3). In indirect live-line work, it is extremely important to ensure the safety of the operator during work, and various tools for indirect live-line work such as a wire stripper that is detachably connected to the tip of the insulating operating rod are considered so that they do not accidentally fall off during work. The connection structure of the prior art document 1 adds a second shift groove portion having a substantially horizontal L-shape formed by a horizontal groove portion and a vertical groove portion to a first shift groove portion having a substantially reverse L-shape formed by a vertical groove portion, a horizontal groove portion, and a vertical groove portion in the latching groove of the connecting fitting, or forms an additional vertical groove in the vertical groove. And even if the pin moves to the upper end in the vertical groove, there is no lateral detachment prevention, and it is difficult for the pin to come off from the latching groove. The connection structure of the prior art document 2 has a shared operating rod having a connection portion capable of connecting a rod-shaped member and a tip tool and a fixing portion for locking the tip tool. The fixing portion is composed of a core portion in which inclined portions are connected in an abacus bead shape and a slide member that can slide along the axial direction of this core portion and abut against the tip tool. The slide member is formed such that each contact portion of the pressing portion presses the core portion in the radial direction of the core portion and tightens and fixes the tip tool. The connection structure of the prior art document 3 has a tool portion provided with a cylindrical shaft portion, a pair of push buttons, and two leaf springs, and a connecting fitting has a shaft hole and a pair of notch grooves. The shaft hole is formed so that the shaft portion can be introduced and fitted, and by gripping the knob and causing the latch plate to project and retract from the recess, the operating rod and the tip tool can be connected.

Prior Art Documents

Patent Documents

[0003] [Patent Document 1] Japanese Patent Publication No. 2008-199861 [Patent Document 2] Japanese Patent Publication No. 2013-102629 [Patent Document 3] Japanese Patent Publication No. 2017-99141 [Overview of the Initiative] [Problems that the invention aims to solve]

[0004] However, the connecting structures in the inventions described in Patent Documents 1 to 3 cannot be said to ensure sufficient safety. This invention has been made in view of these circumstances, and aims to provide a rod-connecting structure that can further ensure safety. [Means for solving the problem]

[0005] The rod-body connecting structure according to claim 1 of this invention is a connecting structure that can lock a rod body and a connected portion connected to the rod body, comprising: a core member configured to connect a connecting portion on the rod body side and a connecting portion on the connected portion side; a first connecting member disposed on the rod body side so as to be movable in the axial direction of the rod body in the region on the rod body side; and a second connecting member disposed in the region on the connected portion side, wherein the first connecting member is annular and fitted around the core member; the second connecting member has a connecting portion mounting hole into which the core member is inserted, and is configured so that the connecting portion on the rod body side and the connecting portion on the connected portion side are connected by combining the core member in the connecting portion mounting hole; the rod body is provided with fixing means constituting separation prevention means to prevent separation of the connected parts by the connecting structure in the region on the connected portion side connected to the rod body; and the second connecting member is a rod Side of the bodyIn the region, a fixing means is formed to stop the fixing means on the rod side, the core member has a first connecting portion formed by a cylindrical portion at the handle side and a second connecting portion formed by a cylindrical portion at the tip side, the core member has a first fixing projection which constitutes a fixing means attached to the second connecting portion at the tip side, and further, a second fixing groove is formed in the second connecting portion which constitutes a fixing means for guiding and fixing the second fixing projection in the longitudinal and radial directions of the operating rod, the second connecting member has a first fixing groove which constitutes a fixing means for stopping the first fixing projection, and the first fixing The protrusion is formed in the second connecting portion of the connecting portion so as to extend radially, so as to move in the axial direction of the rod as the rod moves, and so as to rotate in the circumferential direction of the rod as the rod rotates, the second fixing protrusion comprises a cylindrical body, a biasing body such as a spring loaded inside the cylindrical body, and a ball-shaped protrusion whose head protrudes from the lower end of the cylindrical body, the second fixing groove has a first groove, a second groove opening following the first groove, and a third groove opening following the second groove, the first groove extending longitudinally, and the second groove extending circumferentially The third groove extends longitudinally and forms a dead end, the second fixing groove is formed in an L shape in plan view, and when the first connecting member is rotated, the second fixing projection abuts against the third groove, preventing the first connecting member from moving, the second fixing groove has a depth such that the head of the fitted second fixing projection protrudes, the first connecting part of the core member has a resilient member mounting part formed on the handle side for securing the tip of the resilient member, and a resilient member is provided that spans between the resilient member mounting part and the resilient member mounting part on the rod side, the resilient member is attached to the resilient member mounting part The rod connecting structure is characterized in that, via the first connecting member, it is configured to bias the second connecting member side of the second connecting member constituting the connected portion, and when the connected portion is connected to the rod, the first connecting member is fixed to the region of the core member on the first connecting member side by the second fixing projection which is the fixing means, and the core member is fixed to the region of the second connecting member on the first connecting member side by the first fixing projection which is the fixing means, thereby controlling the movement of the second connecting member and preventing the fixing means constituting the separation prevention means on the rod side from coming off the fixing means formed on the second connecting member.The rod-body connecting structure according to claim 2 of this invention is a connecting structure that can lock a rod body and a connected portion connected to the rod body, comprising: a core member configured to connect a connecting portion on the rod body side and a connecting portion on the connected portion side; a first connecting member disposed on the rod body side so as to be movable in the axial direction of the rod body in the region on the rod body side; and a second connecting member disposed in the region on the connected portion side, wherein the first connecting member is annular and fitted around the core member; the second connecting member has a connecting portion mounting hole into which the core member is inserted, and is configured so as to connect the connecting portion on the rod body side and the connecting portion on the connected portion side by combining the core member in the connecting portion mounting hole; and the connecting portion on the rod body side and the connecting portion on the connected portion side have a convex portion formed on one side and a concave portion formed on the other side, and are configured so as to connect when the convex portion and concave portion are combined.The core member has a first connecting portion formed by a cylindrical portion at the handle end and a second connecting portion formed by a cylindrical portion at the tip end. The core member has a first fixing projection that constitutes a fixing means attached to the second connecting portion at the tip end. Furthermore, the second connecting portion has a second fixing groove that constitutes a fixing means for guiding and fixing the second fixing projection in the longitudinal and radial directions of the rod. The second connecting member has a first fixing groove that constitutes a fixing means for stopping the first fixing projection. The first fixing projection is attached to the second connecting portion of the connecting portion. The first fixing projection is formed to extend radially, to move axially with the movement of the rod, and to rotate circumferentially with the rotation of the rod. The second fixing projection comprises a cylindrical body, a biasing body such as a spring loaded inside the cylindrical body, and a ball-shaped projection whose head protrudes from the lower end of the cylindrical body. The second fixing groove has a first groove, a second groove opening following the first groove, and a third groove opening following the second groove. The first groove extends longitudinally, and the second groove The part extends in the circumferential direction, the third groove extends in the longitudinal direction and forms a dead end, the second fixing groove is formed in an L shape in plan view, and when the first connecting member is rotated, the second fixing projection abuts against the third groove, preventing the first connecting member from moving, the second fixing groove has a depth such that the head of the fitted second fixing projection protrudes, the first connecting part of the core member has a resilient member mounting part formed on the handle side for securing the tip of the resilient member, and is installed spanning between the resilient member mounting part and the resilient member mounting part on the rod side. The rod is equipped with a resilient member, the resilient member constituting a restraining means, configured to bias the first connecting member toward the second connecting member of the second connecting part constituting the connected part via a resilient member attachment portion, the rod is provided with a restraining means constituting a separation prevention means to prevent the connected parts from separating, the restraining means is configured to press the first connecting member toward the second connecting member so that the interlocked convex and concave parts when connected do not separate, and is characterized in that the rod is equipped with a restraining means constituting a separation prevention means to prevent the connected parts from separating, and characterized in that the restraining means is configured to press the first connecting member toward the second connecting member. [Effects of the Invention]

[0006] According to the present invention, it is possible to provide a rod-shaped connecting structure that can ensure even greater safety.

[0007] The above-mentioned objectives, other objectives, features, and advantages of this invention will become even clearer from the following description of embodiments for carrying out the invention, with reference to the drawings. [Brief explanation of the drawing]

[0008] [Figure 1] This is a front view diagram of a connecting structure which is a first embodiment of the present invention. [Figure 2] Figure 1 is a cross-sectional view illustrating the connecting structure shown in the diagram. [Figure 3] Figure 1 shows a cross-sectional view of the connecting structure, where (A) is a cross-sectional view of Figure 1A1-A1, (B) is a cross-sectional view of Figure 1B1-B1, and (C) is a cross-sectional view of Figure 1C1-C1. [Figure 4] Figure 1 is a cross-sectional diagram illustrating the operation of the connecting structure shown in the figure, where (A) shows the unlocked state and (B) shows the state with the connecting part removed. [Figure 5] Figure 1 is a perspective view illustrating the disassembled state of the illustrated connecting structure. [Figure 6] Figure 1 is a cross-sectional view illustrating the disassembled state of the illustrated connecting structure. [Figure 7] Figure 1 is a perspective view of an operating rod equipped with an illustrated connecting structure. [Figure 8] Figure 1 is a perspective view illustrating the connected structure with the connecting part removed. [Figure 9] Figure 1 is a perspective view illustrating the disassembled state of the illustrated connecting structure. [Figure 10A] This is a front view showing a cross-section of a part of a connecting structure, which is a second embodiment of the present invention. [Figure 10B] This is a cross-sectional view of a connecting structure which is a second embodiment of the present invention. [Figure 10C]Cross-sectional view explanatory drawing of the connection structure which is a second embodiment of the present invention. (A) is a sectional view taken along line A2 - A2 of FIG. 10B, (B) is a sectional view taken along line B2 - B2 of FIG. 10B, and (C) is a sectional view taken along line C2 - C2 of FIG. 10B. [Figure 11] Front cross-sectional view explanatory drawing showing the operation of the connection structure shown in FIG. 10. (A) is a view showing the unlocked state, and (B) is a view showing the state where the connection part is removed. [Figure 12] Perspective view explanatory drawing showing the connection structure shown in FIG. 10 in a disassembled state. [Figure 13] Cross-sectional view explanatory drawing showing the connection structure shown in FIG. 10 in a disassembled state. [Figure 14] Perspective view explanatory drawing of an operating rod provided with the connection structure shown in FIG. 10. [Figure 15] Perspective view explanatory drawing of the state where the connection part of the connection structure shown in FIG. 10 is removed. [Figure 16A] Explanatory drawing of the connection structure which is a third embodiment of the present invention. (A) is a front view explanatory drawing, and (B) is a front cross-sectional view explanatory drawing. [Figure 16B] Cross-sectional view explanatory drawing of the connection structure which is a third embodiment of the present invention. (A) is a sectional view taken along line A3 - A3 of FIG. 10B, (B) is a sectional view taken along line B3 - B3 of FIG. 10B, and (C) is a sectional view taken along line C3 - C3 of FIG. 10B. [Figure 17] Cross-sectional view explanatory drawing showing the operation of the connection structure which is a third embodiment of the present invention. (A) is a view showing the unlocked state, and (B) is a view showing the state where the connection part is removed. [Figure 18] Perspective view explanatory drawing of the state where the connection structure shown in FIG. 16 is disassembled. [Figure 19] Perspective view explanatory drawing of the state where the connection structure shown in FIG. 16 is disassembled. [Figure 20] Perspective view explanatory drawing of an operating rod provided with the connection structure shown in FIG. 16. [Figure 21] Perspective view explanatory drawing of the state where the connection part of the connection structure shown in FIG. 16 is removed. [Figure 22] Front view explanatory drawing of the connection structure which is a fourth embodiment of the present invention. [[ID=z41]] [Figure 23]Figure 22 is a perspective view illustrating the disassembled state of the illustrated connecting structure. [Figure 24] Figure 22 is an illustrated diagram of the disassembled state of the illustrated connecting structure, where (A) is a perspective view, (B) is a plan view, and (C) is a cross-sectional view of aa, bb, and cc of Figure (B). [Figure 25] Figure 22 is a perspective view illustrating a part of the connected structure shown in the diagram. [Figure 26] Figure 22 is a perspective view illustrating the disassembled state of the illustrated connecting structure. [Figure 27] Figure 22 is a perspective view illustrating the disassembled state of the illustrated connecting structure. [Figure 28] Figure 22 is a front view diagram of the core member of the illustrated connecting structure. [Figure 29] Figure 22 is a perspective view illustrating the connected structure with the connecting part removed. [Figure 30] Figure 22 is a perspective view illustrating the connected structure. [Figure 31] Figure 22 is a perspective view illustrating the connected structure. [Figure 32] Figure 22 is a front view of the illustrated connecting structure, where (A) shows the locked state and (B) shows the temporarily locked state. [Figure 33] Figure 22 is a front view of the illustrated connecting structure, where (A) shows the unlocked state and (B) shows the detached state of the connecting part. [Figure 34] Figure 22 is a perspective view illustrating an operating rod equipped with an illustrated connecting structure. [Figure 35] Figure 1 is a perspective view of a modified operating rod equipped with the illustrated connecting structure. [Figure 36] Figure 10 is a perspective view of a modified operating rod equipped with the illustrated connecting structure. [Figure 37] Figure 16 is a perspective view of a modified operating rod equipped with the illustrated connecting structure. [Figure 38] Figure 22 is a perspective view of a modified operating rod equipped with the illustrated connecting structure. [Modes for carrying out the invention]

[0009] (definition) The end of the rod-shaped body according to this invention that is held in the hand is called the handle or handle side, and the end opposite to the handle side is called the tip or tip side. In this invention, the central line extending in the longitudinal direction of the rod is called the axis, and the direction in which the axis extends is called the axial direction. The direction along the outer circumference of the rod is called the circumferential direction.

[0010] Typical examples of the rod-shaping structures according to this invention include, for example, a connecting structure between the tip of a rod and a part of a connecting tool attached to the rod at the tip of the rod, or a connecting structure that connects two divided rods. In this specification, the connecting tool, the tip tool, and one of the two divided parts are referred to as the connector.

[0011] In one embodiment of this invention, the connecting structure 10 for connecting a connecting portion to a connector and a connected portion to a tip tool 14, which is a connector connected to the operating rod 12, relates to a connecting structure between an insulated operating rod for indirect live-line work, used in indirect live-line work to avoid power outages around a work site, and a connected portion to a connector such as a tip tool that is interchangeably connected to the tip of the operating rod 12.

[0012] Generally, an insulated operating rod consists of a long insulated operating rod and an electrical work tool, or tip tool, attached to the end of this operating rod. The tip tool is replaced according to the purpose of the work, such as gripping or cutting high-voltage power lines. The operating rod 12 according to this invention is used for a similar purpose to the insulated operating rod, and the operating rod 12 may be referred to as the insulated operating rod.

[0013] One embodiment of the present invention, the connecting structure 10, is a connecting structure that connects a connecting portion of the operating rod 12, which is a rod, to another object, and a connected portion of a tip tool 14 connected to the operating rod 12, which is connected to the operating rod 12.

[0014] The connecting portion 24 on the operating rod 12 side and the connecting portion 32 on the connected portion side have a convex portion formed on one side and a concave portion formed on the other side, and are configured to be connected by the combination of the convex portion and the concave portion. In this embodiment, a protrusion is formed on the connecting portion 24 (on the operating rod side), and a recess is formed on the connecting portion 32 (on the tip tool side).

[0015] The operating rod 12 has a first connecting member 50 disposed in the region of the connecting portion of the operating rod 12 that is connected to other objects, and the tip tool 14 has a second connecting member 80 disposed in the region of the connected portion of the tip tool 14 that is connected to the operating rod 12. The operating rod 12 has a fixing means 16 in the region on which it is connected to the tip tool 14, which constitutes a separation prevention means to prevent the connected parts from separating. The second connecting member 80 also has a fixing means 16 in the region on which it is connected to the operating rod 12, which constitutes a separation prevention means to prevent the connected parts from separating, which stops the fixing means 16, and a first fixing groove 90 constituting the fixing means 16 is formed therein. The first connecting member 50 is disposed on the operating rod 12 so as to be movable in the axial direction of the operating rod. When the tip tool 14 is attached to the operating rod 12 and the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the tip tool side) are connected in a locked state, the fixing means 16 of the operating rod 12 fixes the area of ​​the second connecting member 80 on the side of the first connecting member 50, thereby controlling the movement of the second connecting member 80 and preventing the fixing means 16 of the operating rod 12 from coming out of the first fixing groove 90 of the fixing means 16 of the second connecting member 80.

[0016] The fixing means 16 provided on the operating rod 12 is configured to move in the axial direction of the operating rod 12 in relation to the tip tool 14 as the operating rod 12 moves, and to rotate in the circumferential direction of the operating rod 12.

[0017] The first connecting member 50 may be formed to cover the fixing means 16 on the operating rod 12 side when the operating rod 12 is attached to the second connecting member 80 on the tip tool 14 side by the fixing means 16 on the operating rod 12 side.

[0018] The first connecting member 50 is formed such that when the operating rod 12 is attached to the second connecting member 80 on the tip tool 14 side by the fixing means 16 on the operating rod 12 side, the end of the second connecting member 80 on the first connecting member 50 side is pressed from the handle side toward the tip side.

[0019] The fixing means 16 is composed of a fixing pin 60 which constitutes a first fixing projection formed on the connecting portion 24 on the operating rod 12 side. and / or, The fixing means 16 is composed of a second fixing projection (plunger) 62 formed on the first connecting member 50 on the operating rod 12 side. The fixing means 16 formed on the other second connecting member 80 is composed of winding fixing grooves formed at corresponding positions on the first connecting member 50 and / or the second connecting member 80. The winding fixing grooves (first fixing groove 90 and second fixing groove 92) are configured in a roughly U-shape in plan view so as to form a groove on the opening side that extends toward the tip side from the opening into which the plungers 62 constituting the first fixing protrusion (pin) 60 and the second fixing protrusion are fitted in the axial direction, a groove that extends circumferentially from the groove on the opening side, changing its direction of extension, and a fixing groove that further extends axially toward the handle side, changing its direction of extension.

[0020] The fixing means 16 consists of the fixing pin 60 and the plunger 62 on the connecting portion side of the operating rod 12, and the first fixing groove 90 on the connected portion side that is connected to the operating rod 12. The aforementioned fixing pin 60 and plunger 62 are provided protruding radially from the operating rod 12. The fixing groove 90 has a depth such that the head of the fitted fixing pin 60 protrudes slightly, and a width such that the shafts of the fitted fixing pin 60 and plunger 62 can move, and is configured so that the fixing pin 60 and plunger 62 do not move when the tip tool 14 is attached to the operating rod 12 in the connecting structure 10.

[0021] The fixing means 16 on the operating rod 12 side is composed of a second fixing projection (plunger) 62 which constitutes a positioning member formed on the first connecting member 50, and the second fixing projection (plunger) 62 which constitutes the positioning member may be formed to fit into a second fixing groove 92 which is the fixing means 16 disposed on the second connecting member 80.

[0022] The first connecting member 50 is configured such that when attaching the connecting portion 32 (on the tip tool side) which constitutes the connected portion of the tip tool 14 to the connecting portion (on the operating rod side) which constitutes the connecting portion of the operating rod 12 to something else, the connecting portion 32 (on the tip tool side) is screwed into the second connecting member 80 or the connecting portion 24 on the operating rod 12 side, and is configured so that it does not detach from the second connecting member 80 when the tip tool 14 is fixed to the operating rod 12.

[0023] The connecting portion 24 on the rod side and the connecting portion 32 on the connected portion side have a first fixing projection 60, which is a fixing means 16 that constitutes a protrusion, formed on one side, and a first fixing groove 90, which is a fixing means 16 that constitutes a recess, formed on the other side, and are configured to be connected by combining the projection and the recess. The first connecting member 50 is disposed on the rod side so as to be movable in the axial direction of the rod, The second connecting member 80 is movably disposed on the side of the connected portion, The first connecting member 50 and the second connecting member 80 are configured to separate when the connected first connecting member 50 and the second connecting member 80 move in opposite directions. The operating rod 12 is equipped with a restraining means 18 that constitutes a separation prevention means to prevent separation of the connected parts by the connecting structure. The restraining means 18 is configured to press the first connecting member 50 toward the second connecting member 80 so that the first fixing protrusion 60, which is the fixing means 16 that constitutes the protrusion that interlocks when connected, and the first fixing groove 90 that constitutes the recess, do not separate.

[0024] The aforementioned connecting portion 24 (on the operating rod side) and / or connecting portion 32 (on the tip tool side) are equipped with a deterrent means 18 that resiliently extends from the handle side of the operating rod 12 toward the tip tool 14 side, or from the tip tool 14 side toward the operating rod 12 side.

[0025] The aforementioned deterrent means 18 is composed of an elastic member 70, The resilient member 70 is arranged to press the first connecting member 50 toward the connected portion, or to press the second connecting member 80 so as not to separate the first fixing protrusion 60 which constitutes the protrusion that interlocks when the two members are connected, and the first fixing groove 90 which constitutes the recess. The resilient member 70 is interposed in the connecting portion 24 (on the operating rod side) or the tool portion (tip tool portion) 30 so as to press the first connecting member 50 toward the tip tool 14 side, or to press the fixing means 16 into the fixing groove 90.

[0026] The operating rod 12 has a first connecting portion 40, which is thinner than the operating rod body 20, formed on the side connected to the tip tool, and a second connecting portion 42, which is thicker than the first connecting portion 40, is attached to the tip tool 14 side of the first connecting portion 40. The first connecting portion 40 is configured to create an axial movement space for the first connecting member 50 between itself and the operating rod body 20. The first connecting portion 40 can have a coil spring, which is an elastic member 70 constituting the restraining means 18, arranged around it. When the connecting portion 32 (on the tip tool side), which is the connected portion, is attached to the connecting portion 24 (on the operating rod side), which is the connected portion, in a locked state, the first connecting member 50 is fixed to the region of the second connecting member 80 on the first connecting member side by the fixing means 16, thereby controlling the movement of the second connecting member 80 and preventing the fixing means 16 on the rod side from coming off the fixing means 16 formed on the second connecting member 80.

[0027] In this embodiment, the operating rod body 20 of the operating rod 12 has a substantially circular cross-section, the first connecting portion 40 and the second connecting portion 42 of the core member 44 have a substantially circular cross-section, the first connecting member 50 has a substantially circular cross-section, and the second connecting member 80 has a substantially circular cross-section. Furthermore, the operating rod body 20, core member 44, first connecting member 50, and second connecting member 80 of the operating rod 12 are arranged in parallel with their centerlines extending in the axial direction of the rod body concentrically.

[0028] The connecting portion 24 on the side of the operating rod 12, which is a rod-shaped body, and the connecting portion 32 on the side of the connected portion are arranged in parallel with the center line extending in the axial direction of the rod body concentrically. A convex portion is formed on one side and a concave portion is formed on the other side, and the convex portion and concave portion are configured to connect when combined. In this embodiment, a core member 44 constituting a protrusion is formed in the connecting portion 24 (on the operating rod side), and a rod-side connecting portion mounting hole 94 constituting a recess is formed in the connecting portion 32 (on the tip tool side). The core member 44 is a rod-shaped body with a substantially circular cross-section, and the rod-side connecting part mounting hole 94 is an annular body with a substantially circular cross-section, arranged in parallel with the centerlines extending in the axial direction of the rod concentrically. The core member 44 is combined with the rod-side connecting part mounting hole 94 to connect the connecting part 24 on the operating rod 12 side and the connecting part 32 on the connected part side.

[0029] The first connecting member 50 is disposed on the operating rod in the hand-side region of the two divided operating rods 12, The second connecting member 80 can be installed on the operating rod on the tip tool side of the two divided operating rods 12.

[0030] (First Embodiment)

[0031] The first embodiment of the present invention, the connecting structure 10, will be described mainly with reference to Figures 1 to 9. The first embodiment of the present invention, the connecting structure 10, is a connecting structure that connects an operating rod 12 constituting a rod body to a connecting portion of a tip tool 14 which constitutes a connected portion connected to the operating rod 12.

[0032] The operating rod 12 comprises an operating rod body 20 that constitutes the main body of a long cylindrical rod, a gripping portion 22 attached to the rear end, i.e., the front side, of the operating rod body 20, and a connecting portion 24 (on the operating rod side) formed in the area of ​​the operating rod body 20 that is attached to the tip tool 14.

[0033] The structure of the operating rod 12, particularly the operating rod body 20, which constitutes an insulated operating rod for indirect live-line work, may be, for example, a single rod, or two rods arranged parallel to each other. Insulated operating rods for indirect live-line work only need to be electrically insulating, and it is preferable if they can be made lightweight. For example, various types of plastics with different levels of toughness, such as fiber-reinforced plastic (FRP), can be used.

[0034] The tip tools 14, such as tools for indirect live-line work, consist of, for example, a stripping machine for stripping the insulation coating from live overhead power distribution lines, pliers, and fastening tools. The tip tool 14 comprises a tool portion 30 that directly contacts electric wires, etc., and a connecting portion 32 (on the tip tool side) that constitutes a connected portion formed in the area where the tool portion 30 is connected to the operating rod 12.

[0035] The connecting portion 24 on the side of the operating rod 12, which is a rod-shaped body, and the connecting portion 32 on the side of the connected portion are arranged in parallel with the center line extending in the axial direction of the rod body concentrically. A convex portion is formed on one side and a concave portion is formed on the other side, and the convex portion and concave portion are configured to connect when combined. In this embodiment, a core member 44 constituting a protrusion is formed in the connecting portion 24 (on the operating rod side), and a rod-side connecting portion mounting hole 94 constituting a recess is formed in the connecting portion 32 (on the tip tool side). The core member 44 is a rod-shaped body with a substantially circular cross-section, and the rod-side connecting part mounting hole 94 is an annular body with a substantially circular cross-section, arranged in parallel with the centerlines extending in the axial direction of the rod concentrically. The core member 44 is combined with the rod-side connecting part mounting hole 94 to connect the connecting part 24 on the operating rod 12 side and the connecting part 32 on the connected part side.

[0036] The operating rod 12 has a fixing means 16 in the area connected to the tip tool 14, which constitutes a separation prevention means that fixes the tip tool 14 and prevents the connected parts from separating. Furthermore, the operating rod 12 is provided with a restraining means 18 in the area where it is connected to the tip tool 14. This restraining means prevents the operating rod 12 and the tip tool 14 from becoming disconnected, thus preventing them from moving and preventing the connected parts from separating.

[0037] The connecting portion 24 of the operating rod 12, which constitutes the connecting portion of the rod body, is made up of a core member 44, etc., in which a first connecting portion 40, which is thinner than the operating rod body 20, is formed on the side that is connected to the operating rod body 20, and a second connecting portion 42, which is thicker than the first connecting portion 40, is attached to the tip tool 14 side of the first connecting portion 40.

[0038] The core member 44 that constitutes the connecting portion 24 (on the operating rod side) of the operating rod body 20 is connected to the operating rod body 20 by the (first) operating rod mounting member 26 and fixing pins 26a and 26b) that constitute the operating rod mounting member.

[0039] (1) In this embodiment, the operating rod mounting member 26 and the core member 44 are fitted into a recessed portion 20a provided on the tip side of the operating rod body 20, as shown in Figure 3(C), and are fixed by fixing pins 26a and 26b. The first connecting portion 40 of the core member 44 is fitted around the (first) operating rod mounting member 26 and then fitted into a recess 20a provided at the tip of the operating rod body 20, thereby fixing it to the operating rod body 20.

[0040] In this embodiment, the connecting portion 24 (on the operating rod side) includes a core member 44 that constitutes the first connecting portion 40 and the second connecting portion 42. The core member 44 is hollow and cylindrical, and is arranged around the (first) operating rod mounting member 26 and the (second) operating rod mounting member 28 that constitute the operating rod mounting member.

[0041] In this embodiment, the core member 44 has a first connecting portion 40 at the handle end, which is formed of a cylindrical portion thinner than the operating rod body 20 so that it can be attached to the operating rod body 20, and a second connecting portion 42 at the tip end, which is formed of a thicker cylindrical portion thicker than the thinner first connecting portion 40 at the handle end.

[0042] The core member 44 is shaped to be fitted into the rod-side connecting part mounting hole 94 formed in the cavity provided in the second connecting part 84 of the second connecting member 80, and in this embodiment, it is configured as a cylindrical shape that can slide within the cavity.

[0043] The core member 44 has a hollow annular hollow portion 46 drilled in the longitudinal direction. The hollow portion 46 has a long, narrow first hollow portion 46a formed approximately in its center, and a relatively thick second hollow portion 46b with a longer diameter than the first hollow portion 46a formed towards the tip of the first hollow portion 46a. Furthermore, the hollow portion 46 has a relatively thick third hollow portion 46c formed closer to the user than the first hollow portion 46a, with a longer diameter than the first hollow portion 46a.

[0044] The core member 44 has an operating rod mounting member ((first) operating rod mounting member 26) provided in the third hollow portion 46c of the hollow portion 46 for attachment to the operating rod body 20. The operating rod mounting member ((first) operating rod mounting member 26) is fixed to the tip of the operating rod body 20, and the third hollow portion 46c of the core member 44 is fitted and attached around the (first) operating rod mounting member 26. The (second) operating rod mounting member 28 is fitted into the hollow portion 46, with its handle end located in the third hollow portion 46c, its tip end slidably fitted into the first hollow portion 46a, and its tip end extending towards the tip through the second hollow portion 46b and connected to the columnar core member mounting portion 96. In this embodiment, the (second) operating rod mounting member 28 is a cylindrical rod, with a head at the handle end having a larger diameter than the first hollow portion 46a, and a rod-shaped end at the tip end having approximately the same diameter as the first hollow portion 46a. Therefore, the second hollow portion 46b leaves a hollow space between itself and the (second) operating rod mounting member 28, and is configured so that the second resilient member 76 can be fitted into this space.

[0045] The connecting portion on the rod side and the connecting portion on the connected portion side are configured such that one side has a first fixing protrusion 60, which is a fixing means 16 that forms a convex portion, and the other side has a first fixing groove 90, which is a fixing means 16 that forms a concave portion, and the convex portion and concave portion are combined to connect them.

[0046] The fixing means 16 is composed of a first fixing projection (pin) 60 that constitutes a separation prevention means, formed on the connecting portion on the rod side. The fixing means formed on the second connecting member 80 or the fixing means 16 formed on the core member 44 is composed of a first fixing groove 90, which is a winding fixing groove that constitutes a separation prevention means, formed at corresponding positions on the core member 44 and / or the second connecting member 80.

[0047] In this embodiment, the core member 44 has a first fixing projection (pin) 60, which constitutes the fixing means 16, attached to it on the side of the second connecting portion 42, and a resilient member 70, which constitutes the restraining means 18, is interposed around it on the side of the first connecting portion 40.

[0048] The connecting portion 24 (on the operating rod side) is equipped with a core member 44 fixed to the center of the tip of the operating rod body 20, and a first connecting member 50 is arranged around the core member 44. Furthermore, the connecting portion 24 (on the operating rod side) is equipped with a restraining means 18 on the handle side of the core member 44, which is composed of a resilient member 70 such as a coil spring that is formed to resiliently extend from the handle side of the operating rod 12 toward the tip tool 14. In this first embodiment, a resilient member attachment portion 72 is formed on the handle side of the first connecting member 50 for securing the tip side of the resilient member 70. Furthermore, the operating rod body 20 of the operating rod 12 has a resilient member attachment portion 74 formed at its tip end on the side facing the outer surface of the first connecting member 50 on the hand end side, for securing the rear end of the resilient member 70. The resilient member 70 constituting the deterrent means 18 is configured to bias the first connecting member 50 toward the second connecting member 80 constituting the connected portion when the tip tool 14 is attached to the operating rod 12.

[0049] The first spring member 70, which constitutes the deterrent means 18, pushes the first connecting member 50 toward the tip when locked, and consequently pushes the second connecting member 80 toward the tip. (Types 1, 3, 4)

[0050] The diameter of the deterrent 18 (resilient member 70) is shorter than the diameter of the first connecting member 50 and the resilient member mounting portion 74, and is configured so as not to protrude from the first connecting member 50 and the resilient member mounting portion 74. Therefore, the probability that the deterrent 18 will hit other items when used is extremely low.

[0051] The first connecting portion 40 is configured to form a space for movement of the first connecting member 50, which will be described later, between itself and the operating rod body 20, and the second connecting portion 42 is configured to have the first fixing projection (pin) 60 disposed therein, and to have the second connecting member 80, which constitutes the connecting portion 32 (on the tip tool side), fitted around it.

[0052] The first connecting member 50 is annular in shape and is fitted around the substantially cylindrical core member 44. It is configured to be movable in the longitudinal direction of the core member 44 and the operating rod body 20, and is configured to be resilient toward the tip by an elastic member 70 interposed between the handle side of the first connecting member 50 and the tip side of the operating rod body 20. The first fixing projection (pin) 60 is formed to extend radially in the center of the connecting portion 24 (on the operating rod side). The first fixing projection (pin) 60 is formed to move in the axial direction of the operating rod 12 as the operating rod 12 moves, relative to the tip tool 14, and to rotate in the circumferential direction of the operating rod 12 as the operating rod 12 rotates.

[0053] The connecting portion 32 (on the tip tool side) constitutes a mounting portion that is attached to the operating rod 12, and a second connecting member 80 is provided that is formed to connect to the connecting portion 24 on the operating rod 12 side. The second connecting member 80 has a first fixing groove 90 formed in the region on the side connected to the operating rod 12, which is a fixing means 16 for stopping the first fixing projection (pin) 60 disposed on the connecting portion 24 on the operating rod 12 side. The first fixing groove 90 is a fixing means 16 that fits the first fixing projection (pin) 60 and fixes the first fixing projection (pin) 60 when the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the tip tool side) are connected.

[0054] The first connecting member 50 and the second connecting member 80 have substantially the same or similar external shape. In this embodiment, they are cylindrical with a circular cross-section, and their outer surface diameters are the same or similar. Therefore, there is almost no step difference at the boundary between the second connecting member 80 and the first connecting member 50, and the probability of hitting something else is extremely low.

[0055] The first connecting member 50 and the second connecting member 80 are in close contact with each other at their contact surfaces, and the first connecting member 50 is configured to press against the second connecting member 80 by the biasing force of the restraining means 18 (elastic member 70). In this embodiment, the front end surface 50E of the first connecting member 50 is a plane perpendicular to the axial direction, and the rear end surface 80E of the second connecting member 80 is a plane perpendicular to the axial direction. Therefore, the front end surface 50E of the first connecting member 50 and the rear end surface 80E of the second connecting member 80 are in close contact.

[0056] The resilient member mounting portion 72 at the rear end of the first connecting member 50 has a surface facing the resilient member mounting portion 74 that is perpendicular to the axial direction, while the opposing surface at the tip of the resilient member mounting portion 74 is perpendicular to the axial direction. The restraining means 18 (resilient member 70) sandwiched between these surfaces is configured to bias the first connecting member 50 parallel to the axial direction.

[0057] The diameter of the deterrent 18 (resilient member 70) is shorter than the diameter of the first connecting member 50 and the resilient member mounting portion 74, and is configured so as not to protrude from the first connecting member 50 and the resilient member mounting portion 74.

[0058] The first fixed groove 90 has a first groove 90A that opens toward the operating rod 12, a second groove 90B that opens following the first groove 90A, and a third groove 90C that opens following the second groove 90B. The first groove 90A extends in the longitudinal direction, the second groove 90B extends in the circumferential direction, and the third groove 90C extends in the longitudinal direction and forms a dead end. The first fixing groove 90 is formed in an L-shape in plan view, and is configured so that when the tip tool 14 is attached to the operating rod 12, the first fixing projection (pin) 60 stops in the third groove 90C and does not move. The first fixing groove 90 has a depth such that the head of the fitted first fixing projection (pin) 60 protrudes slightly, and a width such that the shaft portion of the fitted first fixing projection (pin) 60 can move.

[0059] With the above configuration, the second connecting member 80 presses the fixing means 16 (first fixing projection (pin) 60), which is radially protruding and fixed at the bottom of the groove 90C of the first connecting part 40 connected to the operating rod body 20, toward the tip side (attached part) by the biasing force of the elastic member 70 and the second elastic member 76, thereby engaging the third groove 90C and the fixing means 16 (first fixing projection (pin) 60), preventing the second connecting member 80 from moving in the direction of unlocking.

[0060] The first fixing projection (pin) 60 is provided protruding radially from the first connecting member 50. The first fixing groove 90 has a depth such that the head of the fitted first fixing projection (pin) 60 protrudes slightly, and a width such that the shaft portion of the fitted first fixing projection (pin) 60 can move.

[0061] The first groove 90A extends so that the fixing means 16 (first fixing projection (pin) 60) can be advanced toward the tip, that is, it extends in the direction of connecting the operating rod 12 to the tip tool 14, and in this embodiment, it is composed of a groove parallel to the axial direction.

[0062] The second groove 90B has a length that allows the fixing means 16 (first fixing projection (pin) 60), which has advanced radially from the first groove 90A, to advance to a position where it does not return to the first groove 90A. In this embodiment, the second groove 90B is composed of a groove perpendicular to the axial direction.

[0063] The first groove 90A, the second groove 90B, and the third groove 90C are grooves with similar widths, and each is composed of an L-shaped bend. Their width and depth are configured so that they can be advanced in the direction of the groove extension when the first fixing projection (pin) 60 and the second fixing projection (plunger) 62 are fitted into place.

[0064] The third groove 90C extends to allow the fixing means 16 (first fixing projection (pin) 60) to advance toward the user, that is, it extends in the opposite direction to the direction in which the operating rod 12 is connected to the tip tool 14, and is a dead end so that the fixing means 16 (first fixing projection (pin) 60) that has advanced to a position where it does not move radially along the second groove 90B cannot advance any further in the opposite direction to the direction of connection.

[0065] The fixing means 16 (first fixing projection (pin) 60) is fixed to the recess that constitutes the second connecting portion 42, and the portion that protrudes from the outer surface of the recess that constitutes the second connecting portion 42 is the portion that functions as the fixing projection.

[0066] The second connecting member 80 is a part that is attached to the (tip) tool section 30 and connected to the operating rod 12, and comprises a first connecting section 82 which is a tip tool attachment section attached to the (tip) tool section 30, and a second connecting section 84 which is thicker than the first connecting section 82 which is a tip tool attachment section. The first connecting portion 82 is fitted into the mounting portion of the (tip) tool portion 30 and fixed to the (tip) tool portion 30 by an appropriate fastener, such as a pin. The second connecting portion 84 constitutes a hollow core member mounting portion and has a rod-side connecting portion mounting hole 94 which is fitted into the core member 44. The second connecting portion 84 has a columnar core member mounting portion 96 provided within the rod-side connecting portion mounting hole 94. The columnar core member mounting portion 96 is fitted into the annular hollow portion 46 between the second connecting portion 42 of the core member 44 and the (second) operating rod mounting member 28, and is connected to the tip side of the (second) operating rod mounting member 28.

[0067] The (second) operating rod mounting member 28 is positioned in series with the columnar core member mounting portion 96 and is attached to the second connecting portion 42 of the core member 44. The columnar core member mounting portion 96 is configured to abut against the handle-side portion of the second connecting member 80, and the second resilient member 76 is disposed in the second hollow portion 46b, which exists between the handle-side end of the columnar core member mounting portion 96 and the boundary wall portion of the first hollow portion 46a of the hollow portion 46. The second resilient member 76 is formed of a coil spring or the like, which is designed to resiliently extend the columnar core member mounting portion 96 toward the handle side or the tip side.

[0068] The second spring member 76, which constitutes the deterrent means 18, retracts when locked, pushing the core member mounting portion 96 and the second connecting portion 84 toward the tip. (Types 1-3) The second spring member 76 constantly pushes the core member mounting portion 96 and the second connecting portion 84 toward the tip. In the locked state, it is slightly retracted, and when the second connecting member 80 is pulled toward the front during the release operation, it becomes even more retracted.

[0069] As shown in Figure 3(B), the columnar core member mounting portion 96 is fitted into the hollow portion 46 of the second connecting portion 42 and fixed to the (second) operating rod mounting member 28 with a retaining screw 28a.

[0070] The columnar core member mounting portion 96 is shaped to be fitted into the second hollow portion 46b formed in the cavity provided in the second connecting portion 42, and in this embodiment, it is configured as a cylindrical shape that can slide within the cavity. The columnar core member mounting portion 96 has a bottomed hole drilled on the handle side, configured to allow the (second) operating rod mounting member 28 to be fitted into it, and is configured so that the (second) operating rod mounting member 28 is connected to the columnar core member mounting portion 96.

[0071] The columnar core member mounting portion 96 is shaped to be fitted into the second hollow portion 46b formed in the cavity provided in the second connecting portion 42, and in this embodiment, it is configured as a cylindrical shape that can slide within the cavity. The columnar core member mounting portion 96 has a bottomed hole drilled on the handle side, configured to allow the (second) operating rod mounting member 28 to be fitted into it, and is configured so that the (second) operating rod mounting member 28 is connected to the columnar core member mounting portion 96.

[0072] The (second) operating rod mounting member 28 extends toward the user from the columnar core member mounting portion 96, with the second spring member 76 interposed around it, and its head protruding into the third hollow portion 46c is fixed to the first hollow portion 46a, and it is spanned within the second hollow portion 46b.

[0073] The first connecting member 50 and the second connecting member 80 have substantially the same or similar external shape. In this embodiment, they are cylindrical with a circular cross-section, and their outer surface diameters are the same or similar. Therefore, there is almost no step difference at the boundary between the second connecting member 80 and the first connecting member 50, and the probability of hitting something else is extremely low.

[0074] The first connecting member 50 and the second connecting member 80 are in close contact with each other at their contact surfaces, and the first connecting member 50 is configured to press the second connecting member 80 with a uniform force due to the biasing force of the restraining means 18 (elastic member 70).

[0075] The elastic member mounting portion 72 at the rear end of the first connecting member 50 has a surface facing the elastic member mounting portion 74 that is perpendicular to the axial direction, while the opposing surface at the tip of the elastic member mounting portion 74 is a plane perpendicular to the axial direction. The restraining means 18 (elastic member 70) sandwiched between these surfaces is configured to bias the first connecting member 50 with a force parallel to the axial direction.

[0076] The first connecting member 50 is disposed on the operating rod 12 so as to be movable in the axial direction of the operating rod 12. When the tip tool 14 is attached to the operating rod 12, the first connecting member 50 is fixed to the area of ​​the second connecting member 80 on the operating rod 12 side, controlling the movement of the second connecting member 80 so that the connecting portion 24 (on the operating rod side) does not come out of the first fixing groove 90 of the second connecting member 80. The first connecting member 50 has a fixing means 16 to control the movement of the second connecting member 80.

[0077] The fixing means 16 for the core member 44 has a male screw portion 48 on the outer circumference of the region in which the first connecting member 50 is installed and fitted, while the fixing means 16 for the first connecting member 50 has a female screw portion 58 inside the cylinder of the region in which it is fitted to the core member 44. The fixing means 16 of the first connecting member 50 is screwed onto the fixing means 16 of the core member 44, and by rotating the first connecting member 50, it can be moved in the longitudinal direction of the operating rod 12 and stopped in a position suitable for pressing the second connecting member 80 with the first connecting member 50.

[0078] In this embodiment, the operating rod body 20 of the operating rod 12 is a rod with a substantially circular cross-section, the first connecting portion 40 and the second connecting portion 42 of the core member 44 are rod-shaped bodies with a substantially circular cross-section, the first connecting member 50 is an annular body with a substantially circular cross-section, and the second connecting member 80 is an annular body with a substantially circular cross-section. Furthermore, the operating rod body 20, core member 44, first connecting member 50, and second connecting member 80 of the operating rod 12 are arranged in parallel with their centerlines extending in the axial direction of the rod body concentrically. The first connecting member 50 is arranged around the second connecting portion 42 of the core member 44, and the second connecting member 80 is arranged around the tip side of the core member 44, with the tip-side edge of the first connecting member 50 and the hilt-side edge of the second connecting member 80 being formed to face each other.

[0079] Next, regarding the operating method, the following explanation will be given assuming that the insulating operating rod 12 equipped with the connecting structure 10 according to the embodiment is used to operate the tip tool 14 for indirect live lines connected to its tip in order to form an overhead power distribution line bypass circuit. First, as shown in Figures 1 and 2, in order for the worker to attach the tip tool 14 for indirect live-line work to the tip of the insulated operating rod 12, the connecting portion 24 of the insulated operating rod 12 (on the operating rod side) and the connecting portion 32 of the tip tool 14 (on the tip tool side) which constitute the connecting structure 10 are connected. Specifically, the axis of the connecting portion 24 on the operating rod 12 side (operating rod side) and the axis of the connecting portion 32 on the tip tool 14 side (tip tool side) are aligned, and the first fixing projection (pin) 60 is aligned with the first groove portion 90A of the first fixing groove 90. Next, the operating rod 12 is moved toward the tip tool 14, and the first fixing projection (pin) 60 is inserted into the second groove 90B of the first fixing groove 90. Once it reaches the groove wall on the tip tool 14 side of the second groove 90B, the operating rod 12 is rotated circumferentially to advance the first fixing projection (pin) 60 along the groove of the second groove 90B toward the third groove 90C. When the connecting structure 10 reaches the opening of the third groove 90C, that is, when it reaches the dead end of the second groove 90B, the operating rod 12 is pulled back from the tip tool 14 side towards the handle side, and the first fixing projection (pin) 60 is fitted into the third groove 90C. Therefore, by rotating the first connecting member 50, the male threaded portion 48 of the first connecting member 50 and the female threaded portion 58 of the core member 44 act to move the first connecting member 50 in the longitudinal direction of the operating rod 12, moving it to a position where the first connecting member 50 presses against the second connecting member 80, thereby firmly connecting the connecting portion 24 of the operating rod 12 (on the operating rod side) and the connecting portion 32 of the tip tool 14 (on the tip tool side).

[0080] Next, regarding the unlocking of the connection between the operating rod body 20's (operating rod side) connecting portion 24 and the tool portion (tip tool portion) 30's (tip tool side) connecting portion 32 in the connecting structure 10, this will be explained mainly with reference to Figure 4. At that time, the first connecting member 50 is rotated to disengage the male screw portion 48 and the female screw portion 58 and move it towards the handle side. Then, by moving the connecting portion 24 (on the operating rod side) of the operating rod body 20 toward the tip (by pushing the first connecting member 50 toward the handle with the second connecting member 80), the first fixing projection (pin) 60 constituting the fixing means 16 is removed from the third groove 90C, and the operating rod 12 is rotated to move the first fixing projection (pin) 60 along the second groove 90B until it is positioned in the first groove 90A of the first fixing groove 90, the operating rod 12 is moved toward the handle to remove the first fixing projection (pin) 60 from the first fixing groove 90, thereby separating the connecting portion 24 (on the operating rod side) of the operating rod 12 from the connecting portion 32 (on the tip tool side) of the tip tool 14.

[0081] (Second Embodiment)

[0082] Next, a second embodiment of the connecting structure, which is a modified version of the first embodiment, will be described mainly with reference to Figures 10 to 15. In the description of the second embodiment, which is a modified version of the first embodiment, common components and elements with the first embodiment, the connecting structure 10 shown in Figures 1 to 9, will be denoted by the same reference numerals, and the description of these common components and elements will be omitted. The following description will focus on the characteristic constituent elements and components of the connecting structure, which is a modified version of the first embodiment.

[0083] The second embodiment of the present invention, the connecting structure 10, is a connecting structure that connects an operating rod 12 constituting a rod body to a connecting portion of a tip tool 14 which constitutes a connected portion connected to the operating rod 12.

[0084] The operating rod 12 comprises a long cylindrical operating rod body 20, a gripping portion 22 attached to the rear end, i.e., the front side, of the operating rod body 20, and a connecting portion 24 (on the operating rod side) formed in the area of ​​the operating rod body 20 that is attached to the tip tool 14.

[0085] The tip tools 14, such as tools for indirect live-line work, consist of, for example, a stripping machine for stripping the insulation coating from live overhead power distribution lines, pliers, and fastening tools. The tip tool 14 comprises a tool portion 30 that directly contacts electric wires, etc., and a connecting portion 32 (on the tip tool side) that constitutes a connected portion formed in the area where the tool portion 30 is connected to the operating rod 12.

[0086] The connecting portion 24 on the side of the operating rod 12, which is a rod-shaped body, and the connecting portion 32 on the side of the connected portion are arranged in parallel with the center line extending in the axial direction of the rod body concentrically. A convex portion is formed on one side and a concave portion is formed on the other side, and the convex portion and concave portion are configured to connect when combined. In this embodiment, a core member 44 constituting a protrusion is formed in the connecting portion 24 (on the operating rod side), and a rod-side connecting portion mounting hole 94 constituting a recess is formed in the connecting portion 32 (on the tip tool side). The core member 44 is a rod-shaped body with a substantially circular cross-section, and the rod-side connecting part mounting hole 94 is an annular body with a substantially circular cross-section, arranged in parallel with the centerlines extending in the axial direction of the rod concentrically. The core member 44 is combined with the rod-side connecting part mounting hole 94 to connect the connecting part 24 on the operating rod 12 side and the connecting part 32 on the connected part side.

[0087] The operating rod 12 has a fixing means 16 in the area connected to the tip tool 14, which constitutes a separation prevention means that fixes the tip tool 14 and prevents the connected parts from separating. Furthermore, the operating rod 12 is provided with a restraining means 18 in the area where it is connected to the tip tool 14. This restraining means prevents the operating rod 12 and the tip tool 14 from becoming disconnected, thus preventing them from moving and preventing the connected parts from separating.

[0088] The connecting portion 24 of the operating rod 12, which constitutes the connecting portion of the rod body, is made up of a core member 44, etc., in which a first connecting portion 40, which is thinner than the operating rod body 20, is formed on the side that is connected to the operating rod body 20, and a second connecting portion 42, which is thicker than the first connecting portion 40, is attached to the tip tool 14 side of the first connecting portion 40.

[0089] The core member 44 that constitutes the connecting portion 24 (on the operating rod side) of the operating rod body 20 is connected to the operating rod body 20 by an operating rod mounting member ((first) operating rod mounting member 26 and fixing pins 26a and 26b).

[0090] (1) In this embodiment, the operating rod mounting member 26 and the core member 44 are fitted into a recessed portion 20a provided on the tip side of the operating rod body 20, as shown in Figures 12 and 13, and are fixed by fixing pins 26a and 26b. The first connecting portion 40 of the core member 44 is fitted around the (first) operating rod mounting member 26 and then fitted into a recess 20a provided at the tip of the operating rod body 20, thereby fixing it to the operating rod body 20.

[0091] In this embodiment, the connecting portion 24 (on the operating rod side) includes a core member 44 that constitutes the first connecting portion 40 and the second connecting portion 42. The core member 44 is hollow and cylindrical, and is arranged around the operating rod mounting members ((first) operating rod mounting member 26 and (second) operating rod mounting member 28).

[0092] In this embodiment, the core member 44 has a first connecting portion 40 at the handle end, which is formed of a cylindrical portion thinner than the operating rod body 20 so that it can be attached to the operating rod body 20, and a second connecting portion 42 at the tip end, which is formed of a thicker cylindrical portion thicker than the thinner first connecting portion 40 at the handle end.

[0093] The core member 44 has a hollow annular hollow portion 46 drilled in the longitudinal direction. The hollow portion 46 has a long, narrow first hollow portion 46a formed approximately in its center, and a relatively thick second hollow portion 46b with a longer diameter than the first hollow portion 46a formed towards the tip of the first hollow portion 46a. Furthermore, the hollow portion 46 has a relatively thick third hollow portion 46c formed closer to the user than the first hollow portion 46a, with a longer diameter than the first hollow portion 46a.

[0094] The core member 44 has an operating rod mounting member ((first) operating rod mounting member 26) provided in the third hollow portion 46c of the hollow portion 46 for attachment to the operating rod body 20. The operating rod mounting member ((first) operating rod mounting member 26) is fixed to the tip of the operating rod body 20, and the third hollow portion 46c of the core member 44 is fitted and attached around the (first) operating rod mounting member 26. The (second) operating rod mounting member 28 is fitted into the hollow portion 46, with its handle end located in the third hollow portion 46c, its tip end slidably fitted into the first hollow portion 46a, and its tip end extending towards the tip through the second hollow portion 46b and connected to the columnar core member mounting portion 96. In this embodiment, the (second) operating rod mounting member 28 is a cylindrical rod, with a head at the handle end having a larger diameter than the first hollow portion 46a, and a rod-shaped end at the tip end having approximately the same diameter as the first hollow portion 46a. Therefore, the second hollow portion 46b leaves a hollow space between itself and the (second) operating rod mounting member 28, and is configured to allow the second resilient member to be fitted into this space.

[0095] The connecting part on the rod side and the connecting part on the connected part side have a protruding part on one side. The first fixing projection 60 is a fixing means that constitutes the A recess is formed on the other side. The first fixing groove 90 is a fixing means that constitutes the A structure is formed, and it is configured such that the convex portion 62c and the concave portion 92a are combined and connected.

[0096] The fixing means 16 is composed of a first fixing projection (pin) 60 that constitutes a separation prevention means, formed on the connecting portion on the rod side. The fixing means formed on the second connecting member 80 or the fixing means formed on the core member 44 constitutes a winding separation prevention means, which is formed in the core member 44 and / or the second connecting member 80 at corresponding positions, and is a fixing groove. 90 It is composed of the following.

[0097] In this embodiment, the core member 44 has a first fixing projection (pin) 60, which constitutes the fixing means 16, attached to it on the side of the second connecting portion 42. Alternatively, a resilient member 70, which constitutes the restraining means 18, may be interposed around the first connecting portion 40.

[0098] The connecting portion 24 (on the operating rod side) is provided with the first connecting member 50. In this second embodiment, the connecting portion 24 (on the operating rod side) does not have the resilient member 70 that constitutes the restraining means 18, but it may be provided on the handle side of the core member 44. A resilient member attachment portion 72 is formed on the near end of the first connecting member 50 for securing the tip end of the resilient member 70. Furthermore, the operating rod body 20 of the operating rod 12 has a resilient member attachment portion 74 formed at its tip end on the side facing the outer surface of the first connecting member 50 on the hand end side, for securing the rear end of the resilient member 70. The resilient member 70 constituting the deterrent means 18 is preferably configured to bias the first connecting member 50 toward the second connecting member 80 when the tip tool 14 is attached to the operating rod 12.

[0099] The connecting portion 24 (on the operating rod side) is equipped with a core member 44 fixed to the center of the tip of the operating rod body 20, and a first connecting member 50 is arranged around the core member 44. Furthermore, the connecting portion 24 (on the operating rod side) is equipped with a restraining means 18 on the handle side of the core member 44, which is composed of a resilient member 70 such as a coil spring that is formed to resiliently extend from the handle side of the operating rod 12 toward the tip tool 14. The first connecting portion 40 is configured to form a space for movement of the first connecting member 50, which will be described later, between itself and the operating rod body 20, and the second connecting portion 42 is configured to have the first fixing projection (pin) 60 disposed therein, and to have the second connecting member 80, which constitutes the connecting portion 32 (on the tip tool side), fitted around it.

[0100] The first connecting member 50 is annular in shape and is fitted around the substantially cylindrical core member 44, and is configured to screw in the longitudinal direction of the core member 44 and the operating rod body 20. An elastic member 70 (not shown) is interposed between the handle side of the first connecting member 50 and the tip side of the operating rod body 20, causing it to spring out towards the tip. The first fixing projection (pin) 60 is formed to extend radially in the center of the connecting portion 24 (on the operating rod side). The first fixing projection (pin) 60 is formed to move in the axial direction of the operating rod 12 as the operating rod 12 moves, relative to the tip tool 14, and is also formed to rotate in the circumferential direction of the operating rod 12.

[0101] The connecting portion 32 (on the tip tool side) constitutes a mounting portion that is attached to the operating rod 12, and a second connecting member 80 is provided that is formed to connect to the connecting portion 24 on the operating rod 12 side. The second connecting member 80 has a first fixing groove 90 formed in the region on the side connected to the operating rod 12, which stops the first fixing projection (pin) 60 disposed on the connecting portion 24 on the operating rod 12 side. The first fixing groove 90 is fitted into the first fixing projection (pin) 60 and constitutes a fixing means 16 that fixes the first fixing projection (pin) 60 when the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the tip tool side) are connected.

[0102] The first fixed groove 90 has a first groove 90A that opens toward the operating rod 12, a second groove 90B that opens following the first groove 90A, and a third groove 90C that opens following the second groove 90B. The first groove 90A extends in the longitudinal direction, the second groove 90B extends in the circumferential direction, and the third groove 90C extends in the longitudinal direction and forms a dead end. The first fixing groove 90 is formed in an L-shape in plan view, and is configured so that when the tip tool 14 is attached to the operating rod 12, the first fixing projection (pin) 60 stops in the third groove 90C and does not move. The first fixing groove 90 has a depth such that the head of the fitted first fixing projection (pin) 60 protrudes slightly, and a width such that the shaft portion of the fitted first fixing projection (pin) 60 can move.

[0103] With the above configuration, the second connecting member 80 presses the fixing means 16 (first fixing projection (pin) 60), which is radially protruding and fixed at the bottom of the groove 90C of the first connecting part 40 connected to the operating rod body 20, toward the tip side (attached part) by the biasing force of the elastic member 70 and the second elastic member 76, thereby engaging the third groove 90C and the fixing means 16 (first fixing projection (pin) 60), preventing the second connecting member 80 from moving in the direction of unlocking.

[0104] The first fixing projection (pin) 60 is provided protruding radially from the first connecting member 50. The first fixing groove 90 has a depth such that the head of the fitted first fixing projection (pin) 60 protrudes slightly, and a width such that the shaft portion of the fitted first fixing projection (pin) 60 can move.

[0105] The second connecting member 80 is a part that is attached to the (tip) tool section 30 and connected to the operating rod 12, and comprises a first connecting section 82 which is a tip tool attachment section attached to the (tip) tool section 30, and a second connecting section 84 which is thicker than the first connecting section 82 which is a tip tool attachment section. The first connecting portion 82 is fitted into the mounting portion of the (tip) tool portion 30 and fixed to the (tip) tool portion 30 by an appropriate fastener, such as a pin. The second connecting portion 84 constitutes a hollow core member mounting portion and has a rod-side connecting portion mounting hole 94 which is fitted into the core member 44. The second connecting portion 84 has a columnar core member mounting portion 96 provided within the rod-side connecting portion mounting hole 94. The columnar core member mounting portion 96 is fitted into the annular hollow portion 46 between the second connecting portion 42 of the core member 44 and the (second) operating rod mounting member 28, and is connected to the tip side of the (second) operating rod mounting member 28.

[0106] The (second) operating rod mounting member 28 is positioned in series with the columnar core member mounting portion 96 and is attached to the second connecting portion 42 of the core member 44. The columnar core member mounting portion 96 is configured to abut against the handle-side portion of the second connecting member 80, and a second resilient member 76, such as a coil spring, is disposed in the second hollow portion 46b, which exists between the handle-side end of the columnar core member mounting portion 96 and the boundary wall portion of the first hollow portion 46a of the hollow portion 46, so as to elastically extend the columnar core member mounting portion 96 toward the handle side or the tip side. This second ejection member 76 may be omitted.

[0107] As shown in Figure 10, the columnar core member mounting portion 96 is fitted into the hollow portion 46 of the second connecting portion 42 and fixed to the (second) operating rod mounting member 28 with a retaining screw 28a.

[0108] Furthermore, the columnar core member mounting portion 96 has a third resilient member 98, such as a coil spring, positioned to resiliently extend from the tip tool 14 side toward the operating rod 12 side, in a recess drilled in the rod-side connecting portion mounting hole 94 of the second connecting member 80 at its tip end. The third spring-launching member 98 may be fixed to the tip side of the columnar core member mounting portion 96, or it may be fitted and fixed into the recess 32a formed in the center of the connecting portion 32 (on the tip tool side).

[0109] The third spring member 98, which constitutes the deterrent mechanism 18, pushes the second connecting member 80 toward the tip when locked. (Type 2)

[0110] The first connecting member 50 is disposed on the operating rod 12 so as to be movable in the axial direction of the operating rod 12. When the tip tool 14 is attached to the operating rod 12, the first connecting member 50 is fixed to the area of ​​the second connecting member 80 on the operating rod 12 side, controlling the movement of the second connecting member 80 so that the connecting portion 24 (on the operating rod side) does not come out of the first fixing groove 90 of the second connecting member 80. The first connecting member 50 has a fixing means 16 to control the movement of the second connecting member 80.

[0111] The fixing means 16 for the core member 44 is composed of a male screw portion 48 provided on the outer circumference of the region in which the first connecting member 50 is installed and fitted, while the fixing means 16 for the first connecting member 50 is composed of a female screw portion 58 provided inside the cylinder of the region in which the core member 44 is fitted. The female screw portion 58 constituting the fixing means 16 of the first connecting member 50 is screwed onto the male screw portion 48 constituting the fixing means 16 of the core member 44. By rotating the first connecting member 50, it can be moved in the longitudinal direction of the operating rod 12 and stopped in a position suitable for pressing the second connecting member 80 with the first connecting member 50.

[0112] In this embodiment, the operating rod body 20 of the operating rod 12 is a rod with a substantially circular cross-section, the first connecting portion 40 and the second connecting portion 42 of the core member 44 are rod-shaped bodies with a substantially circular cross-section, the first connecting member 50 is an annular body with a substantially circular cross-section, and the second connecting member 80 is an annular body with a substantially circular cross-section. Furthermore, the operating rod body 20, core member 44, first connecting member 50, and second connecting member 80 of the operating rod 12 are arranged in parallel with their centerlines extending in the axial direction of the rod body concentrically. The first connecting member 50 is arranged around the second connecting portion 42 of the core member 44, and the second connecting member 80 is arranged around the tip side of the core member 44, with the tip-side edge of the first connecting member 50 and the hilt-side edge of the second connecting member 80 being formed to face each other.

[0113] Next, regarding the operating method, the following explanation will be given assuming that the insulating operating rod 12 equipped with the connecting structure 10 according to the embodiment is used to operate the tip tool 14 for indirect live lines connected to its tip in order to form an overhead power distribution line bypass circuit. First, as shown in Figures 10 and 11, in order for the worker to attach the tip tool 14 for indirect live-line work to the tip of the insulated operating rod 12, the connecting portion 24 of the insulated operating rod 12 (on the operating rod side) and the connecting portion 32 of the tip tool 14 (on the tip tool side) which constitute the connecting structure 10 are connected. Specifically, the axis of the connecting portion 24 on the operating rod 12 side (operating rod side) and the axis of the connecting portion 32 on the tip tool 14 side (tip tool side) are aligned, and the first fixing projection (pin) 60 is aligned with the first groove portion 90A of the first fixing groove 90. Next, the operating rod 12 is moved toward the tip tool 14, and the first fixing projection (pin) 60 is inserted into the second groove 90B of the first fixing groove 90. Once it reaches the groove wall on the tip tool 14 side of the second groove 90B, the operating rod 12 is rotated circumferentially to advance the first fixing projection (pin) 60 along the groove of the second groove 90B toward the third groove 90C. When the connecting structure 10 reaches the opening of the third groove 90C, that is, when it reaches the dead end of the second groove 90B, the operating rod 12 is pulled back from the tip tool 14 side towards the handle side, and the first fixing projection (pin) 60 is fitted into the third groove 90C. Therefore, by rotating the first connecting member 50, the male threaded portion 48 of the first connecting member 50 and the female threaded portion 58 of the core member 44 act to move the first connecting member 50 in the longitudinal direction of the operating rod 12, moving it to a position where the first connecting member 50 presses against the second connecting member 80, thereby firmly connecting the connecting portion 24 of the operating rod 12 (on the operating rod side) and the connecting portion 32 of the tip tool 14 (on the tip tool side).

[0114] Next, regarding the unlocking of the connection between the operating rod body 20's (operating rod side) connecting portion 24 and the tool portion (tip tool portion) 30's (tip tool side) connecting portion 32 in the connecting structure 10, we will explain this mainly with reference to Figure 11. At that time, the first connecting member 50 is rotated to disengage the male screw portion 48 and the female screw portion 58 and move it towards the handle. Then, by moving the connecting portion 24 (on the operating rod side) of the operating rod body 20 toward the tip (by pushing the first connecting member 50 toward the handle with the second connecting member 80), the first fixing projection (pin) 60 constituting the fixing means 16 is removed from the third groove 90C, and the operating rod 12 is rotated to move the first fixing projection (pin) 60 along the second groove 90B until it is positioned in the first groove 90A of the first fixing groove 90, the operating rod 12 is moved toward the handle to remove the first fixing projection (pin) 60 from the first fixing groove 90, thereby separating the connecting portion 24 (on the operating rod side) of the operating rod 12 from the connecting portion 32 (on the tip tool side) of the tip tool 14.

[0115] (Third embodiment)

[0116] Next, a third embodiment of the connecting structure, which is a modified example of the first embodiment, will be described mainly with reference to Figures 16 to 21. In the description of the third embodiment, which is a modified version of the first embodiment, common components and elements with the first embodiment, the connecting structure 10 shown in Figures 1 to 9, will be denoted by the same reference numerals, and the description of common components and elements will be omitted. The following description will focus on the characteristic constituent elements and components of the connecting structure, which is a modified version of the first embodiment.

[0117] The third embodiment of the present invention, the connecting structure 10, is a connecting structure that connects an operating rod 12 constituting a rod body to a connecting portion of a tip tool 14 which constitutes a connected portion connected to the operating rod 12.

[0118] The operating rod 12 comprises a long cylindrical operating rod body 20, a gripping portion 22 attached to the rear end, i.e., the front side, of the operating rod body 20, and a connecting portion 24 (on the operating rod side) formed in the area of ​​the operating rod body 20 that is attached to the tip tool 14.

[0119] The tip tools 14, such as tools for indirect live-line work, consist of, for example, a stripping machine for stripping the insulation coating from live overhead power distribution lines, pliers, and fastening tools. The tip tool 14 comprises a tool portion 30 that directly contacts electric wires, etc., and a connecting portion 32 (on the tip tool side) that constitutes a connected portion formed in the area where the tool portion 30 is connected to the operating rod 12.

[0120] The connecting portion 24 on the side of the operating rod 12, which is a rod-shaped body, and the connecting portion 32 on the side of the connected portion are arranged in parallel with the center line extending in the axial direction of the rod body concentrically. A convex portion is formed on one side and a concave portion is formed on the other side, and the convex portion and concave portion are configured to connect when combined. In this embodiment, a core member 44 constituting a protrusion is formed in the connecting portion 24 (on the operating rod side), and a rod-side connecting portion mounting hole 94 constituting a recess is formed in the connecting portion 32 (on the tip tool side). The core member 44 is a rod-shaped body with a substantially circular cross-section, and the rod-side connecting part mounting hole 94 is an annular body with a substantially circular cross-section, arranged in parallel with the centerlines extending in the axial direction of the rod concentrically. The core member 44 is combined with the rod-side connecting part mounting hole 94 to connect the connecting part 24 on the operating rod 12 side and the connecting part 32 on the connected part side.

[0121] The operating rod 12 has a fixing means 16 in the area connected to the tip tool 14, which constitutes a separation prevention means that fixes the tip tool 14 and prevents the connected parts from separating. Furthermore, the operating rod 12 is provided with a restraining means 18 in the area where it is connected to the tip tool 14. This restraining means prevents the operating rod 12 and the tip tool 14 from becoming disconnected, thus preventing them from moving and preventing the connected parts from separating.

[0122] The connecting portion 24 of the operating rod 12, which constitutes the connecting portion of the rod body, is made up of a core member 44, etc., in which a first connecting portion 40, which is thinner than the operating rod body 20, is formed on the side that is connected to the operating rod body 20, and a second connecting portion 42, which is thicker than the first connecting portion 40, is attached to the tip tool 14 side of the first connecting portion 40.

[0123] The core member 44 that constitutes the connecting portion 24 (on the operating rod side) of the operating rod body 20 is connected to the operating rod body 20 by an operating rod mounting member ((first) operating rod mounting member 26 and fixing pins 26a and 26b).

[0124] (1) In this embodiment, the operating rod mounting member 26 and the core member 44 are fitted into a recessed portion 20a provided on the tip side of the operating rod body 20, as shown in Figures 17 and 18, and are fixed by fixing pins 26a and 26b. The first connecting portion 40 of the core member 44 is fitted around the (first) operating rod mounting member 26 and then fitted into a recess 20a provided at the tip of the operating rod body 20, thereby fixing it to the operating rod body 20.

[0125] In this embodiment, the connecting portion 24 (on the operating rod side) includes a core member 44 that constitutes the first connecting portion 40 and the second connecting portion 42. The core member 44 is hollow and cylindrical, and is arranged around the operating rod mounting members ((first) operating rod mounting member 26 and (second) operating rod mounting member 28).

[0126] In this embodiment, the core member 44 has a first connecting portion 40 at the handle end, which is formed of a cylindrical portion thinner than the operating rod body 20 so that it can be attached to the operating rod body 20, and a second connecting portion 42 at the tip end, which is formed of a thicker cylindrical portion thicker than the thinner first connecting portion 40 at the handle end.

[0127] The core member 44 has a hollow annular hollow portion 46 drilled in the longitudinal direction. The hollow portion 46 has a long, narrow first hollow portion 46a formed approximately in its center, and a relatively thick second hollow portion 46b with a longer diameter than the first hollow portion 46a formed towards the tip of the first hollow portion 46a. Furthermore, the hollow portion 46 has a relatively thick third hollow portion 46c formed closer to the user than the first hollow portion 46a, with a longer diameter than the first hollow portion 46a.

[0128] The core member 44 has an operating rod mounting member ((first) operating rod mounting member 26) provided in the third hollow portion 46c of the hollow portion 46 for attachment to the operating rod body 20. The operating rod mounting member ((first) operating rod mounting member 26) is fixed to the tip of the operating rod body 20, and the third hollow portion 46c of the core member 44 is fitted and attached around the (first) operating rod mounting member 26. The (second) operating rod mounting member 28 is fitted into the hollow portion 46, with its handle end located in the third hollow portion 46c, its tip end slidably fitted into the first hollow portion 46a, and its tip end extending towards the tip through the second hollow portion 46b and connected to the columnar core member mounting portion 96. In this embodiment, the (second) operating rod mounting member 28 is a cylindrical rod, with a head at the handle end having a larger diameter than the first hollow portion 46a, and a rod-shaped end at the tip end having approximately the same diameter as the first hollow portion 46a. Therefore, the second hollow portion 46b leaves a hollow space between itself and the (second) operating rod mounting member 28, and is configured so that the third resilient member 98 can be fitted into this space.

[0129] In this embodiment, the core member 44 has a first fixing projection (pin) 60, which constitutes the fixing means 16, attached to it on the side of the second connecting portion 42. Alternatively, a resilient member 70, which constitutes the restraining means 18, may be interposed around the first connecting portion 40.

[0130] The connecting portion 24 (on the operating rod side) is equipped with a core member 44 fixed to the center of the tip of the operating rod body 20, and a first connecting member 50 is arranged around the core member 44. Furthermore, although the core member 44 does not have a restraining means 18, which consists of a resilient member 70 such as a coil spring formed to resilient toward the tip tool 14 from the handle side of the operating rod 12, it may be provided on the handle side of the core member 44.

[0131] The connecting portion 24 (on the operating rod side) has a third connecting member 52 positioned on the first connecting portion 40 side, inside the hollow portion of the first connecting member 50. The first connecting member 50 is an annular body with a circular cross-section, and its tip is fitted into the handle side of the second connecting member 80 inside the hollow portion.

[0132] The third connecting member 52 is an annular body with a circular cross-section, fixed to the inner circumferential surface of the first connecting member 50, and fitted into the second connecting portion 42 of the first connecting portion 40 so as to contact the end of the second connecting portion 84 of the second connecting member 80. The third connecting member 52 is a ring-shaped body that is fitted into the second connecting portion 42 of the core member 44 and fitted into the inner circumferential surface on the hollow side of the first connecting member 50. The tip of the third connecting member 52 is in contact with the end edge of the second connecting portion 84 of the second connecting member 80 on the near side, and is also in contact with the end edge of the inner circumferential surface on the hollow side of the first connecting member 50 on the near side, and is configured to be interposed between the end edge of the second connecting portion 84 of the second connecting member 80 and the end edge of the inner circumferential surface on the hollow side of the first connecting member 50 on the near side.

[0133] The fixing means 16 for the first connecting member 50 and the second connecting member 80 consists of a male screw portion 88 provided on the outer circumference of the second connecting member 80 in the region where the first connecting member 50 is interposed, on the second connecting member 80 into which the first connecting member 50 is loaded. On the other hand, the fixing means 16 for the first connecting member 50 consists of a female screw portion 58 provided inside the cylinder in the region interposed by the second connecting member 80. The female screw portion 58 constituting the fixing means 16 of the first connecting member 50 is screwed onto the male screw portion 88 constituting the fixing means 16 of the second connecting member 80. By rotating the first connecting member 50, it can be moved in the longitudinal direction of the operating rod 12 and stopped in a position suitable for pressing the second connecting member 80 with the third connecting member 52 connected to the first connecting member 50.

[0134] The connecting portion 24 (on the operating rod side) does not have the resilient member 70 that constitutes the restraining means 18, but it may be placed on the handle side of the core member 44. In this third embodiment, the second connecting portion 42 of the first connecting portion 40 has a resilient member attachment portion 72 formed on the near side of the region into which the first connecting member 50 is fitted, for securing the tip end of the resilient member 70 (not shown). Furthermore, the operating rod body 20 of the operating rod 12 has a resilient member attachment portion 74 formed at its tip end on the side facing the outer surface of the first connecting member 50 on the hand end side, for securing the rear end of the resilient member 70 (not shown).

[0135] The first connecting portion 40 is configured to form a space for movement of the first connecting member 50, which will be described later, between itself and the operating rod body 20, and the second connecting portion 42 is configured to have the first fixing projection (pin) 60 disposed therein, and to have the second connecting member 80, which constitutes the connecting portion 32 (on the tip tool side), fitted around it.

[0136] The first connecting member 50 is annular in shape and is fitted around a substantially cylindrical core member 44, and is configured to slide in the longitudinal direction of the core member 44 and the operating rod body 20. The first connecting member 50 may be configured to be resilient toward the tip by an elastic member 70 (not shown) interposed between the handle side and the tip side of the operating rod body 20. The first fixing projection (pin) 60 is formed to extend radially in the center of the connecting portion 24 (on the operating rod side). The first fixing projection (pin) 60 is formed to move in the axial direction of the operating rod 12 as the operating rod 12 moves, relative to the tip tool 14, and is also formed to rotate in the circumferential direction of the operating rod 12.

[0137] The connecting portion 32 (on the tip tool side) constitutes a mounting portion that is attached to the operating rod 12, and a second connecting member 80 is provided that is formed to connect to the connecting portion 24 on the operating rod 12 side. The second connecting member 80 has a first fixing groove 90 formed in the region on the side connected to the operating rod 12, which stops the first fixing projection (pin) 60 disposed on the connecting portion 24 on the operating rod 12 side. The first fixing groove 90 is fitted into the first fixing projection (pin) 60 and constitutes a fixing means 16 that fixes the first fixing projection (pin) 60 when the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the tip tool side) are connected.

[0138] The first fixed groove 90 has a first groove 90A that opens toward the operating rod 12, a second groove 90B that opens following the first groove 90A, and a third groove 90C that opens following the second groove 90B. The first groove 90A extends in the longitudinal direction, the second groove 90B extends in the circumferential direction, and the third groove 90C extends in the longitudinal direction and forms a dead end. The first fixing groove 90 is formed in an L-shape in plan view, and is configured so that when the tip tool 14 is attached to the operating rod 12, the first fixing projection (pin) 60 stops in the third groove 90C and does not move. The first fixing groove 90 has a depth such that the head of the fitted first fixing projection (pin) 60 protrudes slightly, and a width such that the shaft portion of the fitted first fixing projection (pin) 60 can move.

[0139] The first fixing projection (pin) 60 is provided protruding radially from the first connecting member 50. The first fixing groove 90 has a depth such that the head of the fitted first fixing projection (pin) 60 protrudes slightly, and a width such that the shaft portion of the fitted first fixing projection (pin) 60 can move.

[0140] The second connecting member 80 is a part that is attached to the (tip) tool section 30 and connected to the operating rod 12, and comprises a first connecting section 82 which is a tip tool attachment section attached to the (tip) tool section 30, and a second connecting section 84 which is thicker than the first connecting section 82 which is a tip tool attachment section. The first connecting portion 82 is fitted into the mounting portion of the (tip) tool portion 30 and fixed to the (tip) tool portion 30 by an appropriate fastener, such as a pin. The second connecting portion 84 constitutes a hollow core member mounting portion and has a rod-side connecting portion mounting hole 94 which is fitted into the core member 44. The second connecting portion 84 has a columnar core member mounting portion 96 provided within the rod-side connecting portion mounting hole 94. The columnar core member mounting portion 96 is fitted into the annular hollow portion 46 between the second connecting portion 42 of the core member 44 and the (second) operating rod mounting member 28, and is connected to the tip side of the (second) operating rod mounting member 28.

[0141] The (second) operating rod mounting member 28 is positioned in series with the columnar core member mounting portion 96 and is attached to the second connecting portion 42 of the core member 44. The columnar core member mounting portion 96 is configured to abut against the handle-side portion of the second connecting member 80, and a second resilient member 76, such as a coil spring, is disposed in the second hollow portion 46b, which exists between the handle-side end of the columnar core member mounting portion 96 and the boundary wall portion of the first hollow portion 46a of the hollow portion 46, so as to elastically extend the columnar core member mounting portion 96 toward the handle side or the tip side.

[0142] As shown in Figures 16 and 17, the columnar core member mounting portion 96 is fitted into the hollow portion 46 of the second connecting portion 42 and is fixed to the (second) operating rod mounting member 28 with retaining screws 28a.

[0143] The first connecting member 50 is disposed on the operating rod 12 so as to be movable in the axial direction of the operating rod 12. When the tip tool 14 is attached to the operating rod 12, the first connecting member 50 is fixed to the area of ​​the second connecting member 80 on the operating rod 12 side, controlling the movement of the second connecting member 80 so that the connecting portion 24 (on the operating rod side) does not come out of the first fixing groove 90 of the second connecting member 80. The first connecting member 50 has a fixing means 16 to control the movement of the second connecting member 80.

[0144] The first connecting member 50 is configured to cover the first fixing projection (pin) 60 that constitutes the fixing means 16 when the tip tool 14 is attached to the operating rod 12, and is configured to enclose the second connecting portion 84 of the second connecting member 80 and the third connecting member 52 in its hollow portion.

[0145] The second connecting portion 84 of the first connecting member 50 and the second connecting member 80 is configured to be screwed in the axial direction by the male screw portion 88 and female screw portion 58 that constitute the fixing means 16 when the first connecting member 50 is rotated. In this embodiment, the first connecting member 50 has a female threaded portion 58 formed on the inside of the region of the first connecting member 50 that overlaps with the second connecting portion 84 of the second connecting member 80, and the second connecting member 80 has a male threaded portion 88 formed on the outside of the region of the second connecting portion 84 that is covered by the first connecting member 50.

[0146] In this embodiment, the operating rod body 20 of the operating rod 12 is a rod with a substantially circular cross-section, the first connecting portion 40 and the second connecting portion 42 of the core member 44 are rod-shaped bodies with a substantially circular cross-section, the first connecting member 50 is an annular body with a substantially circular cross-section, the third connecting member 52 is an annular body with a substantially circular cross-section, and the second connecting member 80 is an annular body with a substantially circular cross-section. Furthermore, the operating rod body 20, core member 44, first connecting member 50, third connecting member 52, and second connecting member 80 of the operating rod 12 are arranged in parallel with their centerlines extending in the axial direction of the rod body concentrically. The third connecting member 52 is arranged around the second connecting portion 42 of the core member 44, the first connecting member 50 is arranged around the third connecting member 52 and the second connecting portion 84 of the second connecting member 80, the second connecting member 80 is arranged around the tip side of the core member 44, and the tip-side edge of the third connecting member 52 and the hilt-side edge of the second connecting member 80 are formed to face each other.

[0147] Next, regarding the operating method, the following explanation will be given assuming that the insulating operating rod 12 equipped with the connecting structure 10 according to the embodiment is used to operate the tip tool 14 for indirect live lines connected to its tip in order to form an overhead power distribution line bypass circuit. First, as shown in Figures 16 and 17, in order for the worker to attach the tip tool 14 for indirect live-line work to the tip of the insulated operating rod 12, the connecting portion 24 of the insulated operating rod 12 (on the operating rod side) and the connecting portion 32 of the tip tool 14 (on the tip tool side) which constitute the connecting structure 10 are connected. Specifically, the axis of the connecting portion 24 on the operating rod 12 side (operating rod side) and the axis of the connecting portion 32 on the tip tool 14 side (tip tool side) are aligned, and the first fixing projection (pin) 60 is aligned with the first groove portion 90A of the first fixing groove 90. Next, the operating rod 12 is moved toward the tip tool 14, and the first fixing projection (pin) 60 is inserted into the second groove 90B of the first fixing groove 90. Once it reaches the groove wall on the tip tool 14 side of the second groove 90B, the operating rod 12 is rotated circumferentially to advance the first fixing projection (pin) 60 along the groove of the second groove 90B toward the third groove 90C. When the connecting structure 10 reaches the opening of the third groove 90C, that is, when it reaches the dead end of the second groove 90B, the operating rod 12 is pulled back from the tip tool 14 side towards the handle side, and the first fixing projection (pin) 60 is fitted into the third groove 90C. Therefore, by rotating the first connecting member 50, the interaction between the female threaded portion 58 of the first connecting member 50 and the male threaded portion 88 of the second connecting member 80 moves the first connecting member 50 in the longitudinal direction of the operating rod 12, moving it to a position where the third connecting member 52 presses against the second connecting member 80, thereby firmly connecting the connecting portion 24 of the operating rod 12 (on the operating rod side) and the connecting portion 32 of the tip tool 14 (on the tip tool side).

[0148] Next, regarding the unlocking of the connection between the connecting portion 24 (on the operating rod side) of the operating rod body 20 and the connecting portion 32 (on the tip tool side) of the tool portion (tip tool portion) 30 in the connecting structure 10, this will be explained mainly with reference to Figure 17. At that time, the first connecting member 50 is rotated to move it toward the handle side, the connecting portion 24 (on the operating rod side) of the operating rod body 20 is moved toward the tip side to disengage the first fixing projection (pin) 60 constituting the fixing means 16 from the third groove 90C, the operating rod 12 is rotated to move the first fixing projection (pin) 60 along the second groove 90B, and when it is positioned in the first fixing groove 90, the operating rod 12 is moved toward the handle side to disengage the first fixing projection (pin) 60 from the first fixing groove 90, thereby separating the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the tip tool side) of the tip tool 14.

[0149] (Fourth embodiment)

[0150] Next, the fourth embodiment, a connecting structure, will be described mainly with reference to Figures 22 to 33. Furthermore, common components and elements with the first embodiment of the connecting structure 10 shown in Figures 1 to 9 are denoted by the same reference numerals, and their descriptions are omitted. The following will focus on describing the characteristic constituent elements of the connecting structure of the fourth embodiment.

[0151] The fourth embodiment of the present invention, the connecting structure 10, is a connecting structure that connects an operating rod 12 constituting a rod body to a connecting portion of a tip tool 14 which constitutes a connected portion connected to the operating rod 12.

[0152] The operating rod 12 comprises a long cylindrical operating rod body 20, a gripping portion 22 attached to the rear end, i.e., the front side, of the operating rod body 20, and a connecting portion 24 (on the operating rod side) formed in the area of ​​the operating rod body 20 that is attached to the tip tool 14.

[0153] The tip tools 14, such as tools for indirect live-line work, consist of, for example, a stripping machine for stripping the insulation coating from live overhead power distribution lines, pliers, and fastening tools. The tip tool 14 comprises a tool portion 30 that directly contacts electric wires, etc., and a connecting portion 32 (on the tip tool side) that constitutes a connected portion formed in the area where the tool portion 30 is connected to the operating rod 12.

[0154] The connecting portion 24 on the side of the operating rod 12, which is a rod-shaped body, and the connecting portion 32 on the side of the connected portion are arranged in parallel with the center line extending in the axial direction of the rod body concentrically. A convex portion is formed on one side and a concave portion is formed on the other side, and the convex portion and concave portion are configured to connect when combined. In this embodiment, a core member 44 constituting a protrusion is formed on the connecting portion 24, and a rod-side connecting portion mounting hole 94 constituting a recess is formed on the connecting portion 32. The core member 44 is a rod-shaped body with a substantially circular cross-section, and the rod-side connecting part mounting hole 94 is an annular body with a substantially circular cross-section, arranged in parallel with the centerlines extending in the axial direction of the rod concentrically. The core member 44 is combined with the rod-side connecting part mounting hole 94 to connect the connecting part 24 on the operating rod 12 side and the connecting part 32 on the connected part side.

[0155] The operating rod 12 has a fixing means 16 in the area connected to the tip tool 14, which constitutes a separation prevention means that fixes the tip tool 14 and prevents the connected parts from separating. Furthermore, the operating rod 12 is provided with a restraining means 18 in the area where it is connected to the tip tool 14. This restraining means prevents the operating rod 12 and the tip tool 14 from becoming disconnected, thus preventing them from moving and preventing the connected parts from separating.

[0156] The connecting portion 24 of the operating rod 12, which constitutes the connecting portion of the rod body, is made up of a core member 44, etc., in which a first connecting portion 40, which is thinner than the operating rod body 20, is formed on the side that is connected to the operating rod body 20, and a second connecting portion 42, which is thicker than the first connecting portion 40, is attached to the tip tool 14 side of the first connecting portion 40.

[0157] The core member 44 that constitutes the connecting portion 24 (on the operating rod side) of the operating rod body 20 is connected to the operating rod body 20 by an operating rod mounting member ((first) operating rod mounting member 26 and fixing pins 26a and 26b). (1) The operating rod mounting member 26 is a bottomed annular body and is fitted into the recess 20a of the operating rod body 20 and is configured to be directly connected by appropriate fixing means, for example, fixing pins 26a and 26b.

[0158] The connecting portion 24 (on the operating rod side) includes a core member 44 that constitutes the first connecting portion 40 and the second connecting portion 42. The core member 44 is fitted into the mounting hole 26d drilled in the center of the operating rod mounting member ((first) operating rod mounting member 26), and is connected by the connecting screw 26c. In this embodiment, the (first) operating rod mounting member 26 is connected to the (first) operating rod mounting member 26 by inserting a connecting screw 26c from its handle end to connect the (first) operating rod mounting member 26 to the core member 44, thereby screwing the connecting screw 26c to the handle end of the core member 44. The core member 44 is attached to the operating rod body 20 via the (first) operating rod mounting member 26.

[0159] The connecting portion 24 (on the operating rod side) is equipped with a resilient member 70 that constitutes the deterrent means 18. In this embodiment, the core member 44 has a restraining means 18 arranged around its first connecting portion 40, which is composed of a resilient member 70 such as a coil spring that is formed to resiliently extend from the handle side of the operating rod 12 toward the tip tool 14 side.

[0160] In this embodiment, the core member 44 has a first connecting portion 40 at the handle end, which is formed of a cylindrical portion thinner than the operating rod body 20 so that it can be attached to the operating rod body 20, and a second connecting portion 42 at the tip end, which is formed of a thicker cylindrical portion thicker than the thinner first connecting portion 40 at the handle end. In this embodiment, as shown in Figure 28, the core member 44 is formed by separating the first connecting portion 40 and the second connecting portion 42 into separate members, which are connected by pins 44a as appropriate.

[0161] The core member 44 has a first fixing projection (pin) 60, which constitutes the fixing means 16, attached to the second connecting portion 42 at the tip end, and a resilient member 70, which constitutes the restraining means 18, is interposed around the first connecting portion 40 at the handle end. Furthermore, in this embodiment, the core member 44 has a second fixing groove 92 formed in the second connecting portion 42 for guiding and fixing the second fixing projection (plunger) 62, which will be described later, in the longitudinal and radial directions of the operating rod 12.

[0162] The connecting portion 24 (on the operating rod side) is provided with the first connecting member 50. The first connecting member 50 is an annular body with a circular cross-section, and its tip is fitted into the second connecting portion 42 of the first connecting portion 40 inside the hollow portion. In this embodiment, the connecting portion 24 (on the operating rod side) is equipped with a core member 44 fixed to the center at the tip of the operating rod body 20, and a first connecting member 50 is arranged around the core member 44.

[0163] The first connecting portion 40 has a resilient member attachment portion 72 formed on the near side of the area into which the first connecting member 50 is fitted, for securing the tip end of the resilient member 70. Furthermore, the operating rod body 20 of the operating rod 12 has a resilient member attachment portion 74 formed at its tip end on the side facing the outer surface of the first connecting member 50 on the hand end side, for securing the rear end of the resilient member 70. The first connecting member 50 is installed across the elastic member mounting portion 72 and the elastic member mounting portion 74 so as to surround the elastic member 70 interposed in the core member 44 of the first connecting portion 40, and its tip is attached to the second connecting portion 42 so as to surround the outer circumferential surface of the second connecting portion 42.

[0164] The resilient member 70 constituting the deterrent means 18 is configured such that when the tip tool 14 is attached to the operating rod 12, it biases the first connecting member 50 toward the second connecting member 80 of the second connecting portion 42 which constitutes the connected portion, via the resilient member attachment portion 72.

[0165] The connecting portion on the rod side and the connecting portion on the connected portion side are configured such that one side has a first fixing protrusion 60, which is a fixing means 16 that forms a convex portion, and the other side has a first fixing groove 90, which is a fixing means 16 that forms a concave portion, and the convex portion and concave portion are combined to connect them.

[0166] The fixing means 16 is composed of a first fixing projection (pin) 60 that constitutes a separation prevention means, formed on the connecting portion on the rod side. and / or, The fixing means 16 is composed of a second fixing projection (plunger) 62 that constitutes a separation prevention means, formed on the first connecting member 50 on the rod side. The fixing means formed on the second connecting member 80 or the fixing means formed on the core member 44 consists of a first fixing groove 90, which is a winding fixing groove that constitutes a separation prevention means, formed at corresponding positions on the core member 44 and / or the second connecting member 80.

[0167] The first connecting portion 40 of the core member 44 is configured to create a space for movement of the first connecting member 50, which will be described later, between itself and the operating rod body 20. The second connecting portion 42 of the core member 44 has the first fixing projection (pin) 60 disposed on its tip side. Furthermore, the second connecting portion 42 of the core member 44 has a second fixing groove 92 formed therein for guiding the second fixing projection (plunger) 62, which will be described later.

[0168] The first fixing projection (pin) 60 is formed to extend radially at the second connecting portion 42 of the connecting portion 24 (on the operating rod side). The first fixing projection (pin) 60 is formed to move in the axial direction of the operating rod 12 as the operating rod 12 moves, relative to the tip tool 14, and to rotate in the circumferential direction of the operating rod 12 as the operating rod 12 rotates.

[0169] The second fixed groove 92 has a first groove 92A that opens toward the operating rod 12, a second groove 92B that opens following the first groove 92A, and a third groove 92C that opens following the second groove 92B. The first groove 92A extends in the longitudinal direction, the second groove 92B extends in the circumferential direction, and the third groove 92C extends in the longitudinal direction and forms a dead end. The second fixing groove 92 is formed in an L-shape in plan view, and when the tip tool 14 is attached to the operating rod 12, the first connecting member 50 is rotated, causing the second fixing projection (plunger) 62 to abut against the third groove 92C, preventing the first connecting member 50 from moving. The second fixing groove 92 has a depth such that the head of the fitted second fixing projection (plunger) 62 protrudes slightly, and a width such that the shaft of the fitted second fixing projection (plunger) 62 can move.

[0170] As shown in Figure 24, the second fixed projection (plunger) 62 comprises a cylindrical body 62a, a biasing element 62b such as a spring loaded inside the cylindrical body 62a, and a ball-shaped projection 62c whose head protrudes from the lower end of the cylindrical body 62a by the biasing element 62b. The second fixing projection (plunger) 62 is provided protruding radially from the first connecting member 50, and the second fixing groove 92 includes a recess 92a with a depth to which the projection 62c of the fitted second fixing projection (plunger) 62 fits slightly, and a planar movement path 92b having a width that allows the cylindrical body 62a and projection 62c of the fitted second fixing projection (plunger) 62 to move. The second fixing projection (plunger) 62 is configured to move along the movement path 92b in the groove of the second fixing groove 92, fit into the concave recess 92a, and control the movement of the first connecting member 50. As shown in Figure 24, the recess 92a of the second fixing groove 92 is provided in the second groove portion 92B and the third groove portion 92C.

[0171] The first connecting member 50 is annular in shape and is fitted around the substantially cylindrical core member 44. It is configured to be movable in the longitudinal direction of the core member 44 and the operating rod body 20, and is configured to be resilient toward the tip by an elastic member 70 interposed between the handle side of the first connecting member 50 and the tip side of the operating rod body 20. The first connecting member 50 has a hole 50a drilled at its tip for fixing the second fixing projection (plunger) 62, and the second fixing projection (plunger) 62, which constitutes the fixing means 16, is fitted and fixed into the hole 50a.

[0172] The connecting portion 32 (on the tip tool side) constitutes a mounting portion that is attached to the operating rod 12, and a second connecting member 80 is provided that is formed to connect to the connecting portion 24 on the operating rod 12 side. The second connecting member 80 has a first fixing groove 90 formed in the region on the side connected to the operating rod 12, which stops the first fixing projection (pin) 60 disposed on the connecting portion 24 on the operating rod 12 side. The first fixing groove 90 is fitted into the first fixing projection (pin) 60 and constitutes a fixing means 16 that fixes the first fixing projection (pin) 60 when the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the tip tool side) are connected.

[0173] The first fixed groove 90 has a first groove 90A that opens toward the operating rod 12, a second groove 90B that opens following the first groove 90A, and a third groove 90C that opens following the second groove 90B. The first groove 90A extends in the longitudinal direction, the second groove 90B extends in the circumferential direction, and the third groove 90C extends in the longitudinal direction and forms a dead end. The first fixing groove 90 is formed in an L-shape in plan view, and is configured so that when the tip tool 14 is attached to the operating rod 12, the first fixing projection (pin) 60 stops in the third groove 90C and does not move. The first fixing groove 90 has a depth such that the head of the fitted first fixing projection (pin) 60 protrudes slightly, and a width such that the shaft portion of the fitted first fixing projection (pin) 60 can move.

[0174] The first fixing projection (pin) 60 is provided protruding radially from the second connecting portion 42 of the core member 44, and the first fixing groove 90 has a depth such that the head of the fitted first fixing projection (pin) 60 protrudes slightly, and a width such that the shaft portion of the fitted first fixing projection (pin) 60 can move, and the first fixing projection (pin) 60 moves within the groove of the first fixing groove 90 to control the movement of the operating rod 12 and the first connecting portion 40.

[0175] The second connecting member 80 is a part that is attached to the (tip) tool section 30 and connected to the operating rod 12, and comprises a first connecting section 82 which is a tip tool attachment section attached to the (tip) tool section 30, and a second connecting section 84 which is thicker than the first connecting section 82 which is a tip tool attachment section. The first connecting portion 82 is fitted into the mounting portion of the (tip) tool portion 30 and fixed to the (tip) tool portion 30 by an appropriate fastener, such as a pin. The second connecting portion 84 constitutes a hollow core member mounting portion and has a rod-side connecting portion mounting hole 94 which is fitted into the core member 44. Furthermore, a first fixing groove 90 is formed following the opening edge of the mounting hole 94 on the rod side.

[0176] The first connecting member 50 is disposed on the side of the operating rod 12 so as to be movable in the axial direction of the operating rod 12. When the tip tool 14 is attached to the operating rod 12, the first connecting member 50 is fixed to the area of ​​the second connecting member 80 on the operating rod 12 side, controlling the movement of the second connecting member 80 so that the connecting portion 24 (on the operating rod side) does not come out of the first fixing groove 90 of the second connecting member 80. Furthermore, the first connecting member 50 has a fixing means 16 for fixing the first connecting member 50 to the second connecting portion 42 of the first connecting portion 40 in order to control the movement of the second connecting member 80. This fixing means 16 for fixing the first connecting member 50 to the second connecting portion 42 of the first connecting portion 40 is composed of the second fixing projection (plunger) 62 described above.

[0177] In this embodiment, the operating rod body 20 of the operating rod 12 is a rod with a substantially circular cross-section, the first connecting portion 40 and the second connecting portion 42 of the core member 44 are rod-shaped bodies with a substantially circular cross-section, the first connecting member 50 is an annular body with a substantially circular cross-section, and the second connecting member 80 is an annular body with a substantially circular cross-section. Furthermore, the operating rod body 20, core member 44, first connecting member 50, and second connecting member 80 of the operating rod 12 are arranged in parallel with their centerlines extending in the axial direction of the rod body concentrically. The first connecting member 50 is arranged around the second connecting portion 42 of the core member 44, and the second connecting member 80 is arranged around the tip side of the core member 44, with the tip-side edge of the first connecting member 50 and the hilt-side edge of the second connecting member 80 being formed to face each other.

[0178] Next, regarding the operating method, the following explanation will be given assuming that an indirect live-line tip tool 14 connected to the tip of the insulating operating rod 12, which is equipped with the connecting structure 10 according to the fourth embodiment, is operated by the insulating operating rod 12 in order to form an overhead power distribution line bypass circuit. First, as shown in Figure 32, in order for the worker to attach the tip tool 14 for indirect live-line work to the tip of the operating rod 12, the connecting part 24 of the operating rod 12 (on the operating rod side) and the connecting part 32 of the tip tool 14 (on the tip tool side) which constitute the connecting structure 10 are connected. Specifically, the axis of the connecting portion 24 on the operating rod 12 side and the axis of the connecting portion 32 on the tip tool 14 side are aligned, and the first fixing projection (pin) 60 is aligned with the first groove portion 90A of the first fixing groove 90. Next, the operating rod 12 is moved toward the tip tool 14, and the first fixing projection (pin) 60 is inserted into the second groove 90B of the first fixing groove 90. Once it reaches the groove wall on the tip tool 14 side of the second groove 90B, the operating rod 12 is rotated circumferentially to advance the first fixing projection (pin) 60 along the groove of the second groove 90B toward the third groove 90C. When the connecting structure 10 reaches the opening of the third groove 90C, that is, when it reaches the dead end of the second groove 90B, the operating rod 12 is pulled back from the tip tool 14 side towards the handle side, and the first fixing projection (pin) 60 is fitted into the third groove 90C.

[0179] When fixing the first connecting member 50 to the second connecting portion 42, as shown in Figure 32(B), the first connecting member 50 is moved in the longitudinal direction of the operating rod 12 by the action of the second fixing projection (plunger) 62 of the first connecting member 50 and the second fixing groove 92 of the core member 44, and the first connecting member 50 is moved to a position where it presses against the second connecting member 80, thereby connecting the first connecting member 50 and the second connecting portion 42, and firmly connecting the connecting portion 24 of the operating rod 12 (on the operating rod side) and the connecting portion 32 of the tip tool 14 (on the tip tool side). In this embodiment, the axis of the core member 44 is aligned with the axis of the second connecting portion 42, and the second fixing projection (plunger) 62 is aligned with the first groove portion 92A of the second fixing groove 92. Next, the first connecting member 50 is moved toward the tip tool 14, and the second fixing projection (plunger) 62 is inserted into the second groove 92B of the second fixing groove 92. Once it reaches the groove wall on the tip tool 14 side of the second fixing groove 92, the first connecting member 50 is rotated circumferentially, and the second fixing projection (plunger) 62 is advanced along the groove 92B toward the third groove 92C. When the second fixed projection (plunger) 62 reaches the opening of the third groove 92C, that is, when it reaches the dead end of the second groove 92B, the second fixed projection (plunger) 62 is fitted into the third groove 92C. In this way, by rotating the first connecting member 50, the second fixing projection (plunger) 62 of the first connecting member 50 and the second fixing groove 92 of the second connecting portion 42 move the first connecting member 50 to a position where it presses against the second connecting member 80, thereby connecting the first connecting member 50 to the second connecting portion 42 of the core member 44.

[0180] In the connection structure 10, the process of releasing the lock between the connecting portion 24 (on the operating rod side) of the operating rod body 20 and the connecting portion 32 (on the tip tool side) of the tool portion (tip tool portion) will be explained mainly with reference to Figure 33. The first connecting member 50 is rotated to the position of the second groove portion 92B and temporarily fixed in place. Then, by moving the connecting portion 24 (on the operating rod side) of the operating rod body 20 toward the tip, and pushing the second connecting member 80 toward the handle as the first connecting member 50 moves, the first fixing projection (pin) 60 constituting the fixing means 16 is released from the third groove 90C, and by rotating the operating rod 12 to move the first fixing projection (pin) 60 along the second groove 90B, and when it is positioned in the first fixing groove 90, moving the operating rod 12 toward the handle releases the first fixing projection (pin) 60 from the first fixing groove 90, the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the tip tool side) of the tip tool 14 can be separated.

[0181] (Modified versions of the first to third embodiments) Modified examples of the first to third embodiments will be described below with reference to Figures 36 to 38. In this modified example, the connecting structure 10 is formed not near the tip tool 14 which has the connected portion, but closer to the handle side of the rod.

[0182] The modified connecting structure 10 connects the handle-side rod and the tip-side rod of the two divided rods, and is formed to connect the first operating rod 12A, to which the tip tool 14 constituting the operating rod 12 is connected, and the second operating rod 12B, which constitutes the handle-side operating rod 12. The first operating rod 12A constitutes a connecting portion, with a connected portion formed at its tip, and the second operating rod 12B constitutes a rod, with a connecting portion formed at its rear end.

[0183] In a modified version of the first embodiment, the operating rod 12 comprises a long cylindrical operating rod body 20 constituting the first operating rod body 12A, and a gripping portion 22 constituting the second operating rod body 12B, which is attached to the rear end, i.e., the front side, of the operating rod body 20. The operating rod body 20 has a tip tool 14 attached to its front end, and the rear end region is equipped with a connecting portion 24 (on the operating rod side) that constitutes the connected portion.

[0184] As described above, embodiments of the present invention are disclosed in the above description, but the present invention is not limited thereto. In other words, without departing from the scope of the technical idea and objectives of the present invention, various modifications can be made to the embodiments described above in terms of mechanism, shape, material, quantity, position or arrangement, and these modifications are included in the present invention. In the above embodiment, the connecting portion 24 on the operating rod 12 side and the connecting portion 32 on the connected portion side are formed to be connected in parallel with the center line extending in the axial direction of the rod concentrically, with a convex portion formed on one connecting portion 24 and a concave portion formed on the other connecting portion 32. However, the connecting portion 24 (on the operating rod side) may have a concave portion, for example, a rod-side connecting portion mounting hole 94, and the connecting portion 32 (on the tip tool side) may have a convex portion, for example, a core member 44. [Industrial applicability]

[0185] The connecting structure according to the present invention can be widely used as a connecting structure for rod-shaped bodies.

Description of Symbols

[0186] 10 - connection structure 12 - operating rod 12A - First operating rod body 12B - Second operating rod body 14 - tip tool 16 - fixing means<000089​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​ 72. Mounting section for resilient member 74. Mounting section for resilient member 76 Second batch of components 80 Second connecting member 80E Rear end surface 82 1st connection part 84 2nd connection part 88 Male threaded section 90 First fixing groove 90A First groove 90B Second groove 90C Third groove 92 Second fixing groove 92a recess 92b Travel route 92A First groove 92B Second groove 92C Third groove 94 Mounting hole for connecting part on rod side 96 Columnar core member mounting section 98 Third-generation component

Claims

1. A connecting structure that can lock a rod body and a connected part connected to the rod body, A core member configured to connect the connecting portion on the rod side with the connecting portion on the connected portion side, A first connecting member is disposed on the rod side so as to be movable in the axial direction of the rod in the region on the rod side, It comprises a second connecting member disposed in the region on the side of the connected portion, The first connecting member is annular in shape and is fitted and mounted around the core member. The second connecting member has a connecting portion mounting hole into which the core member is inserted. The connection portion is configured such that a core member is combined with the connection portion on the rod side and the connection portion on the connected portion side, The aforementioned rod body is provided with fixing means that constitute a separation prevention means, which prevents the connected parts from separating, in the region on the connected part side to the rod body. The second connecting member has a fixing means formed in the area on the rod side for stopping the fixing means on the rod side. The core member has a first connecting portion formed by a cylindrical portion at the handle end and a second connecting portion formed by a cylindrical portion at the tip end. The core member has a first fixing projection attached to the second connecting portion at its tip, which constitutes a fixing means, and further, a second fixing groove is formed in the second connecting portion, which constitutes a fixing means for guiding and fixing the second fixing projection in the longitudinal and radial directions of the operating rod. The second connecting member has a first fixing groove formed therein, which constitutes a fixing means for stopping the first fixing projection. The first fixing projection is formed in the second connecting portion of the connecting portion so as to extend radially, so as to move in the axial direction of the rod body as the rod body moves, and so as to rotate in the circumferential direction of the rod body as the rod body rotates. The second fixed projection comprises a cylindrical body, a biasing element such as a spring loaded inside the cylindrical body, and a ball-shaped projection whose head protrudes from the lower end of the cylindrical body. The second fixing groove has a first groove portion, a second groove portion opening following the first groove portion, and a third groove portion opening following the second groove portion. The first groove extends in the longitudinal direction, the second groove extends in the circumferential direction, and the third groove extends in the longitudinal direction, forming a dead end. The second fixing groove is formed in an L-shape in plan view, and when the first connecting member is rotated, the second fixing projection abuts against the third groove, preventing the first connecting member from moving. The second fixing groove has a depth such that the head of the fitted second fixing projection protrudes, The first connecting portion of the core member has a resilient member attachment portion formed on the handle side for securing the tip of the resilient member, and includes a resilient member that spans between the resilient member attachment portion and the resilient member attachment portion on the rod side. The elastic member is configured to bias the first connecting member toward the second connecting member of the second connecting portion that constitutes the connected portion, via the elastic member mounting portion. A rod-body connecting structure characterized in that, when the connected portion is connected to the rod body, the first connecting member is fixed to the region of the core member on the first connecting member side by the second fixing projection which is the fixing means, and the core member is fixed to the region of the second connecting member on the first connecting member side by the first fixing projection which is the fixing means, thereby controlling the movement of the second connecting member and preventing the fixing means that constitutes the separation prevention means on the rod body side from coming off the fixing means formed on the second connecting member.

2. A connecting structure that can lock a rod body and a connected part connected to the rod body, A core member configured to connect the connecting portion on the rod side with the connecting portion on the connected portion side, A first connecting member is disposed on the rod side so as to be movable in the axial direction of the rod in the region on the rod side, It comprises a second connecting member disposed in the region on the side of the connected portion, The first connecting member is annular in shape and is fitted and mounted around the core member. The second connecting member has a connecting portion mounting hole into which the core member is inserted. The connection portion is configured such that a core member is combined with the connection portion on the rod side and the connection portion on the connected portion side, The connecting portion on the rod side and the connecting portion on the connected portion side are configured such that a convex portion is formed on one side and a concave portion is formed on the other side, and the convex portion and concave portion are combined to form a connection, and the core member constitutes a first connecting portion formed by a cylindrical portion at the handle side and a second connecting portion formed by a cylindrical portion at the tip side. The core member has a first fixing projection attached to the second connecting portion at the tip, which constitutes a fixing means, and further, a second fixing groove is formed in the second connecting portion, which constitutes a fixing means for guiding and fixing the second fixing projection in the longitudinal and radial directions of the rod body. The second connecting member has a first fixing groove formed therein, which constitutes a fixing means for stopping the first fixing projection. The first fixed projection is formed in the second connecting portion of the connecting portion so as to extend radially, so as to move in the axial direction of the rod body as the rod body moves, and so as to rotate in the circumferential direction of the rod body as the rod body rotates. The second fixed projection comprises a cylindrical body, a biasing element such as a spring loaded inside the cylindrical body, and a ball-shaped projection whose head protrudes from the lower end of the cylindrical body. The second fixing groove has a first groove portion, a second groove portion opening following the first groove portion, and a third groove portion opening following the second groove portion. The first groove extends in the longitudinal direction, the second groove extends in the circumferential direction, and the third groove extends in the longitudinal direction, forming a dead end. The second fixing groove is formed in an L-shape in plan view, and when the first connecting member is rotated, the second fixing projection abuts against the third groove, preventing the first connecting member from moving. The second fixing groove has a depth such that the head of the fitted second fixing projection protrudes, The first connecting portion of the core member has a resilient member attachment portion formed on the handle side for securing the tip of the resilient member, and includes a resilient member that spans between the resilient member attachment portion and the resilient member attachment portion on the rod side. The aforementioned resilient member constitutes a restraining means, and is configured to bias the first connecting member toward the second connecting member of the second connecting portion that constitutes the connected portion, via the resilient member mounting portion. The aforementioned rod is equipped with a restraining means that constitutes a separation prevention means to prevent the connected parts from separating, The aforementioned restraining means is configured to press the first connecting member toward the second connecting member so that the interlocking convex and concave portions that were connected together do not separate, thus forming a connecting structure for rods.

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