Connecting structure of rod body

Abstract

The utility model aims to provide a connecting structure of a rod body, which can further ensure the safety. A connection structure (10) for connecting a rod body and a part to be connected to the rod body is characterized by being provided with: a first connection member (50) disposed in a region on the rod body side; and a second connection member (80) disposed in a region on the connected portion side connected to the rod body, the rod body being provided with a fixing means (16) constituting a separation prevention means for preventing the separation of the members connected by the connection structure (10) in the region on the connected portion side connected to the rod body, the fixing means (16) being disposed in the region on the connected portion side connected to the rod body, and the fixing means (16) being disposed in the region on the connected portion side connected to the rod body. The second connecting member (80) is provided with a fixing means (16) for stopping the fixing means (16) on the rod body side in a region on the connected part side connected with the rod body.

Description

Technical Field

[0001] The utility model relates to a connecting structure of a rod body, in particular to a connecting structure between an insulating operating rod for indirect construction, for example, used in indirect live wire construction, and a front end tool connected thereto. Background Art

[0002] Conventionally, some proposals have been made regarding the connection structure between the indirect live wire servicing tool and the insulated operating rod for indirect live wire servicing (Patent Documents 1 to 3).

[0003] It is extremely important to ensure the safety of workers during indirect fire line construction, and to find ways to prevent various indirect fire line construction tools such as strippers that are freely connected to the front end of the insulating operating rod from accidentally falling off during the operation.

[0004] In the connection structure of the prior art document 1, for the locking groove of the connection fitting, a second reversing groove portion having a substantially transverse L shape consisting of a transverse groove portion and a longitudinal groove portion is added to the first reversing groove portion having a substantially inverted L shape consisting of a longitudinal groove portion, a transverse groove portion, and a longitudinal groove portion, or an additional longitudinal groove is formed in the longitudinal groove. Furthermore, even if the pin moves to the upper end in the longitudinal groove, it is prevented from coming off in the transverse direction, and the pin is difficult to come off the locking groove.

[0005] The connection structure of the existing document 2 is formed as follows: the common operating rod has a connecting part that can connect the rod-shaped member to the front end tool, and a fixing part for locking the front end tool, the fixing part is composed of an inclined part and a core part connected in an abacus bead shape by the inclined part, and a sliding member that can slide along the axial direction of the core part and abut against the front end tool, in the sliding member, each abutting part of the pressing part presses the core part in the radial direction of the core part to tighten and fix the front end tool.

[0006] The connection structure of the existing document 3 is formed as follows: the tool part has a cylindrical shaft, a pair of buttons, and two leaf springs, and the connecting accessory has an shaft hole and a pair of cut grooves, and the shaft can be introduced and embedded in the shaft hole. The knob is held to make the latch plate appear and retract relative to the recess, so that the operating rod and the front end tool can be connected.

[0007] Prior art literature

[0008] Patent Literature

[0009] Patent Document 1: Japanese Patent Application Publication No. 2008-199861

[0010] Patent Document 2: Japanese Patent Application Publication No. 2013-102629

[0011] Patent Document 3: Japanese Patent Application Publication No. 2017-99141 Utility Model Content

[0012] Issues to be solved by utility models

[0013] However, it is difficult to say that the connection structures in the inventions of Patent Documents 1 to 3 fully ensure safety.

[0014] The utility model is completed in view of the relevant situation, and aims to provide a connecting structure of a rod body which can further ensure safety.

[0015] Technical means to solve problems

[0016] The connecting structure of the rod body involved in scheme 1 of the utility model is a connecting structure for connecting the rod body and a connected part connected to the rod body, and is characterized in that it comprises: a first connecting member, which is arranged in an area on the side of the rod body; and a second connecting member, which is arranged in an area on the side of the connected part connected to the rod body, wherein the rod body is provided with a fixing means constituting a separation prevention means in the area on the side of the connected part connected to the rod body to prevent the parts connected by the connecting structure from being separated, and the second connecting member is formed with a fixing means on the side of the connected part connected to the rod body to stop the fixing means on the side of the rod body, the first connecting member is arranged on the side of the rod body in a manner that can move in the axial direction of the rod body, and the first connecting member is formed so that when the connected part is connected to the rod body, the first connecting member is fixed to the first connecting member side area of ​​the second connecting member by the fixing means, and the movement of the second connecting member is controlled to prevent the fixing means on the side of the rod body from being separated from the fixing means formed on the second connecting member.

[0017] The connecting structure of the rod body involved in scheme 2 of the present utility model is a connecting structure for connecting the rod body and the connected part connected to the rod body, and is characterized in that it comprises: a first connecting member, which is arranged in the area on the side of the rod body; and a second connecting member, which is arranged in the area on the side of the connected part connected to the rod body, the connecting part on the side of the rod body and the connecting part on the side of the connected part are configured to form a convex part on one side and a concave part on the other side, and the convex part and the concave part are combined to connect, and the first connecting member is movable in the axial direction of the rod body. Arranged on the rod body side, the second connecting member is arranged on the connected part side in a manner that it can move toward the connected part, the first connecting member and the second connecting member are constructed so that the connected first connecting member and the second connecting member are separated by moving in opposite directions, and the rod body is provided with a restraining means constituting a separation prevention means for preventing the separation of the parts connected by the connecting structure, and the restraining means is constructed so that the convex part and the concave part that are meshed with each other when the first connecting member is pressed toward the second connecting member side to perform the connection will not be separated.

[0018] Scheme 3 of the utility model relates to the connection structure of the rod body. According to the connection structure of the rod body recorded in Scheme 1, the connection part on the rod body side and the connection part on the connected part side are constructed to form a convex part on one side and a concave part on the other side, and the convex part and the concave part are combined for connection.

[0019] Scheme 4 of the utility model relates to the connecting structure of the rod body. According to the connecting structure of the rod body described in Scheme 1, the fixing means arranged on the side of the rod body constitutes a separation prevention means, which is formed to move in the axial direction of the rod body relative to the connected part and as the rod body moves, and is formed to rotate in the circumferential direction of the rod body.

[0020] Scheme 5 of the present invention involves a connecting structure of a rod body, according to the connecting structure of a rod body described in Scheme 1 or 2, wherein the first connecting member is formed to press the end of the first connecting member side of the second connecting member when the connecting portion on the connected portion side is connected to the connecting portion on the rod body side.

[0021] Scheme 6 of the utility model relates to the connecting structure of the rod body, according to the connecting structure of the rod body described in Scheme 1, wherein the fixing means is composed of a first fixing protrusion (pin) formed on the connecting portion on the rod body side, constituting the separation prevention means, and / or the fixing means is composed of a second fixing protrusion (plunger) formed on the first connecting member on the rod body side, constituting the separation prevention means, and the fixing means formed on the second connecting member or the fixing means formed on the core member is composed of a tortuous fixing groove constituting the separation prevention means formed at a corresponding position in the core member and / or the second connecting member.

[0022] Scheme 7 of the utility model relates to the connecting structure of the rod body. According to the connecting structure of the rod body described in Scheme 1, the fixing means is composed of a fixing pin, a plunger and a fixing groove, the fixing pin and the plunger are protruding in the radial direction of the rod body, the fixing groove has a depth that allows the head of the embedded fixing pin to protrude slightly, and a width that allows the shaft of the embedded fixing pin and the plunger to move, so that the fixing pin and the plunger will not move when the rod body is installed on the connected part.

[0023] The connecting structure of the rod body according to Scheme 8 of the present invention is based on the connecting structure of the rod body described in Scheme 1, wherein the fixing means on the first operating rod side is composed of a positioning member formed on the first connecting member, and the positioning member is formed to be engaged with the fixing means arranged on the second connecting member.

[0024] Scheme 9 of the utility model involves the connection structure of the rod body. According to the connection structure of the rod body described in Scheme 1 or 2, the first connecting member is configured to be threadedly connected to the second connecting member or the connecting part of the rod body when the connected part is connected to the rod body, and is configured not to be separated from the second connecting member when the connected part is fixed to the rod body.

[0025] Scheme 10 of the utility model relates to the connecting structure of the rod body, according to the connecting structure of the rod body recorded in Scheme 1 or 2, the restraining means is composed of a rebound member, and the rebound member is configured to press in a manner that the meshing convex part and the concave part will not separate when the first connecting part or the second connecting part is connected by pressing the first connecting member toward the connected part side or by pressing the fixing means toward the fixing groove.

[0026] Scheme 11 of the utility model relates to the connection structure of the rod body, according to the connection structure of the rod body described in Scheme 1 or 2, in which a first connection portion thinner than the rod body main body is formed on a side connected to the connected portion, and a second connection portion thicker than the first connection portion is continuously arranged on the connected portion side of the first connection portion, the first connection portion is configured to form a moving space for the first connection member between the rod body main body, and the second connection portion is provided with the fixing means.

[0027] Scheme 12 of the present invention involves a connecting structure of a rod body, which is based on the connecting structure of a rod body described in Scheme 1 or 2, wherein the first connecting member is arranged on the rod body in the area on the hand side of the rod body, and the second connecting member is arranged on the rod body on the connected portion side of the rod body.

[0028] Utility Model Effect

[0029] According to the utility model, a connecting structure of a rod body which can further ensure safety can be provided.

[0030] The above-mentioned object, other objects, features, and advantages of the present invention will become more apparent from the following description of specific embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a front view illustrating a connection structure according to a first embodiment of the present invention.

[0032] Figure 2 yes Figure 1 The diagram shows a front cross-section of the connection structure.

[0033] Figure 3 yes Figure 1 The cross-sectional diagram of the joint structure shown in the figure, (A) is Figure 1A1-A1 cross-sectional diagram, (B) is Figure 1 The B1-B1 cross-sectional diagram in the middle, (C) is Figure 1 Diagram of the C1-C1 cross section.

[0034] Figure 4 Yes means Figure 1 The front cross-sectional diagrams of the operation of the connecting structure shown in the figure are a diagram showing a lock released state (A) and a diagram showing a state where the connecting portion is removed.

[0035] Figure 5 yes Figure 1 A three-dimensional diagram showing an exploded state of the connecting structure is shown in the figure.

[0036] Figure 6 yes Figure 1 The figure shows a cross-sectional diagram of an exploded state of the connection structure.

[0037] Figure 7 Yes Figure 1 A three-dimensional diagram of an operating rod of a connecting structure is shown in the figure.

[0038] Figure 8 It is shown Figure 1 The figure shows a perspective diagram of a connection structure in a state where a connection portion is removed.

[0039] Fig. 9 It is shown Figure 1 The figure shows a three-dimensional diagram of the exploded state of the connection structure.

[0040] Fig. 10A This is a front view illustrating a part of a connection structure according to a second embodiment of the present invention in section.

[0041] Fig. 10B It is a front cross-sectional diagram of the connection structure which is the second embodiment of the present invention.

[0042] Fig. 10C is a cross-sectional diagram of a connection structure according to a second embodiment of the present invention, (A) is Fig. 10B A2-A2 section view, (B) is Fig. 10B The B2-B2 section view, (C) is Fig. 10B Middle C2-C2 cross-section.

[0043] Fig.11 10 is a front cross-sectional diagram showing the operation of the connecting structure, (A) is a diagram showing a lock release state, (B) is a diagram showing a state where the connecting portion is removed.

[0044] Fig.12 It is a perspective diagram showing a state where the connection structure shown in FIG. 10 is exploded.

[0045] Fig.13 It is a cross-sectional diagram showing a state in which the connection structure shown in FIG. 10 is exploded.

[0046] Fig.14 It is a three-dimensional diagram of an operating rod having the connection structure shown in FIG. 10 .

[0047] Fig.15 FIG. 10 is a perspective diagram showing a state where the connecting portion of the connecting structure is removed.

[0048] Fig.16A It is a diagrammatic view of a connection structure as a third embodiment of the present invention, (A) is a front diagrammatic view, and (B) is a front cross-sectional diagram.

[0049] Fig. 16B is a cross-sectional diagram of a connection structure according to a third embodiment of the present invention, (A) is Fig.16A A3-A3 section view, (B) is Fig.16A The B3-B3 section view, (C) is Fig.16A Middle C3-C3 cross-section.

[0050] Fig.17 The diagrams are cross-sectional views showing the operation of a connection structure according to a third embodiment of the present invention, wherein (A) is a view showing a lock released state, and (B) is a view showing a state in which a connection portion is removed.

[0051] Fig.18 FIG. 16 is a perspective diagram showing an exploded state of the connecting structure.

[0052] Fig.19 FIG. 16 is a perspective diagram showing an exploded state of the connecting structure.

[0053] Fig. 20 It is a perspective diagrammatic view of an operating rod having the connection structure shown in FIG. 16 .

[0054] Fig.21 FIG. 16 is a perspective diagram showing a state in which the connecting portion of the connecting structure is removed.

[0055] Fig. 22 It is a front view illustrating a connection structure as a fourth embodiment of the present invention.

[0056] Fig.23 yes Fig. 22 A three-dimensional diagram showing an exploded state of the connecting structure is shown in the figure.

[0057] Fig.24 yes Fig. 22The figures show diagrams of the exploded state of the connection structure, (A) is a three-dimensional diagram, (B) is a plan diagram, and (C) is a cross-sectional diagram of aa, bb and cc of (B).

[0058] Fig.25 Yes Fig. 22 The figure shows a three-dimensional diagram in which a part of the connection structure is cut into a cross section.

[0059] Fig.26 yes Fig. 22 A three-dimensional diagram showing an exploded state of the connecting structure is shown in the figure.

[0060] Fig. 27 yes Fig. 22 A three-dimensional diagram showing an exploded state of the connecting structure is shown in the figure.

[0061] Fig.28 yes Fig. 22 A front diagrammatic view of a core member of a joint structure is shown.

[0062] Fig.29 yes Fig. 22 The figure shows a perspective diagram of a connection structure in a state where a connection portion is removed.

[0063] Fig.30 yes Fig. 22 The figure shows a three-dimensional diagram of the joint structure.

[0064] Fig.31 yes Fig. 22 The figure shows a three-dimensional diagram of the joint structure.

[0065] Fig.32 yes Fig. 22 The figures show front view of the connection structure, (A) is a diagram showing a locked state, and (B) is a diagram showing a temporary locked state.

[0066] Fig.33 yes Fig. 22 The figures show front view diagrams of the connection structure, (A) is a diagram showing a lock released state, and (B) is a diagram showing a state where the connection portion is removed.

[0067] Fig.34 Yes Fig. 22 A three-dimensional diagram of an operating rod of a connecting structure is shown in the figure.

[0068] Fig.35 Yes Figure 1 A perspective diagram of an operating rod as a modified example of a connecting structure is shown in the figure.

[0069] Fig.36 10 is a perspective diagram of an operating rod as a modified example having the connection structure shown in FIG. 10 .

[0070] Fig.37 16 is a perspective diagram of an operation rod as a modified example having the connection structure shown in FIG. 16 .

[0071] Fig.38 Yes Fig. 22 A perspective diagram of an operating rod as a modified example of a connecting structure is shown in the figure. DETAILED DESCRIPTION

[0072] (definition)

[0073] The side of the stick body of the utility model held in the hand is referred to as the hand side or the hand side, and the front end side on the side opposite to the hand side is referred to as the front end or the front end side.

[0074] The center line of the rod body of the present invention extending in the longitudinal direction is referred to as an axis, and the extending direction of the axis is referred to as an axial direction. The direction along the outer circumference of the rod body is referred to as a circumferential direction.

[0075] The connecting structure of the rod body according to the present invention is typically a connecting structure between the front end of the rod body and a portion where a connecting tool is attached to the rod body, or a connecting structure that connects a rod body divided into two.

[0076] In this specification, the connecting tool, the front end tool, and one of the two parts divided into two parts are referred to as a connecting piece.

[0077] A connecting structure 10 that connects a connecting portion connected to a connecting piece in a rod body, i.e., an operating rod 12, which is one embodiment of the utility model, and a connected portion in a front end tool 14, which is a connecting piece connected to the operating rod 12, for example, involves a connecting structure between an insulating operating rod for indirect live wire construction used in indirect live wire construction to avoid power outages around a work site and a connected portion connected to the operating rod 12 in a connecting piece such as a front end tool that is freely replaceably connected to its front end.

[0078] Usually, the insulating operating rod is composed of a long insulating operating rod and a front tool which is an electrical working tool attached to the front end of the operating rod. The front tool is replaced according to the purpose of the operation, such as holding or cutting the high-voltage distribution line.

[0079] The operating rod 12 according to the present invention is used for the same purpose as the insulating operating rod, and the operating rod 12 is sometimes referred to as an insulating operating rod.

[0080] A connection structure 10 as one embodiment of the present invention is a connection structure that connects a connection portion of an operating rod 12 as a rod body that is connected to another member and a connected portion of a tip tool 14 that is connected to the operating rod 12 .

[0081] The connecting portion 24 on the operating rod 12 side and the connecting portion 32 on the connected portion side as the rod body 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 the concave portion are combined to connect.

[0082] In the present embodiment, a convex portion is formed on the connecting portion 24 (on the operation rod side), and a concave portion is formed on the connecting portion 32 (on the tip tool side).

[0083] The operation rod 12 has a first connection member 50 disposed in a region of a connection portion of the operation rod 12 to other components, and the tip tool 14 has a second connection member 80 disposed in a region of a connected portion of the tip tool 14 to the operation rod 12 .

[0084] The operating rod 12 is provided with a fixing means 16 constituting a separation prevention means in the area on the side connected to the front end tool 14, which prevents the parts connected by the connecting structure from being separated. The second connecting member 80 is provided with a fixing means 16 constituting a separation prevention means in the area on the side connected to the operating rod 12, which stops the fixing means 16 and prevents the parts connected by the connecting structure from being separated. The fixing means 16 is formed with a first fixing groove 90 constituting the fixing means 16.

[0085] The first connecting member 50 is arranged on the operating rod 12 in a manner that it can move in the axial direction of the operating rod. When the front end tool 14 is installed on the operating rod 12 and is in a locked state in which the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the front end tool side) are connected, the movement of the second connecting member 80 is controlled by the fixing means 16 of the operating rod 12 to prevent the fixing means 16 of the operating rod 12 from being disengaged from the first fixing groove 90 of the fixing means 16 of the second connecting member 80.

[0086] The fixing means 16 provided on the operating rod 12 is formed to move in the axial direction of the operating rod 12 relative to the tip tool 14 as the operating rod 12 moves, and is formed to rotate in the circumferential direction of the operating rod 12 .

[0087] Sometimes, the first coupling member 50 is formed so as to cover the fixing means 16 on the operating rod 12 side when the operating rod 12 is attached to the second coupling member 80 on the tip tool 14 side via the fixing means 16 on the operating rod 12 side.

[0088] The first connecting member 50 is formed so that when the operating rod 12 is attached to the second connecting member 80 on the distal 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 hand side toward the distal side.

[0089] The fixing means 16 is composed of a fixing pin 60 which is formed on the connecting portion 24 on the side of the operating rod 12 and constitutes a first fixing protrusion.

[0090] and / or,

[0091] The fixing means 16 is constituted by a second fixing protrusion (plunger) 62 formed on the first connecting member 50 on the operating rod 12 side.

[0092] The fixing means 16 formed on the second connecting member 80 on the other hand is composed of a zigzag fixing groove formed at a corresponding position in the first connecting member 50 and / or the second connecting member 80. The zigzag fixing groove (the first fixing groove 90 and the second fixing groove 92) is formed in a substantially U-shaped shape in a plan view by forming a groove portion on the opening side extending toward the front end side from the opening portion into which the plunger 62 constituting the first fixing protrusion (pin) 60 and the second fixing protrusion is axially embedded, a groove portion extending in the circumferential direction by changing the extending direction from the groove portion on the opening side, and a fixing groove portion extending in the axial direction toward the hand side by changing the extending direction.

[0093] The fixing means 16 is constituted by 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 connected to the operating rod 12 .

[0094] The fixing pin 60 and the plunger 62 are provided to protrude in the radial direction of the operating rod 12 .

[0095] The fixing groove 90 has a depth that allows the head of the embedded fixing pin 60 to slightly protrude, and a width that allows the shaft of the embedded fixing pin 60 and the plunger 62 to move, so that the fixing pin 60 and the plunger 62 do not move when the tip tool 14 is mounted on the operating rod 12 in the connection structure 10.

[0096] Sometimes, the fixing means 16 on the operating rod 12 side is composed of a second fixing protrusion (plunger) 62 constituting a positioning member formed on the first connecting member 50, and the second fixing protrusion (plunger) 62 constituting the positioning member is formed to be engaged with a second fixing groove 92 serving as the fixing means 16 and arranged on the second connecting member 80.

[0097] Sometimes, the first connecting member 50 is constructed so that when the connecting portion 32 (on the front end tool side) of the connected portion constituting the front end tool 14 is installed to the connecting portion 24 (on the operating rod side) of the connecting portion connected to other parts constituting the operating rod 12, it is threadedly connected to the second connecting member 80 of the connecting portion 32 (on the front end tool side) or the connecting portion 24 on the operating rod 12 side, and is constructed so that it will not leave the second connecting member 80 when the front end tool 14 is fixed to the operating rod 12.

[0098] The connecting portion 24 on the rod body side and the connecting portion 32 on the connected portion side are configured such that a first fixing protrusion 60 as a fixing means 16 constituting a protrusion is formed on one side, and a first fixing groove 90 as a fixing means 16 constituting a concave portion is formed on the other side, and the protrusion and the concave portion are combined to be connected.

[0099] The first connecting member 50 is disposed on the rod body side in a manner movable in the axial direction of the rod body.

[0100] The second connecting member 80 is disposed on the connected portion side in a manner movable toward the connected portion.

[0101] The first connecting member 50 and the second connecting member 80 are configured so that the connected first connecting member 50 and the second connecting member 80 can be separated by moving in opposite directions.

[0102] The operating rod 12 is provided with a restraining means 18 constituting a separation preventing means for preventing the components connected by the connection structure from being separated.

[0103] The restraining means 18 is configured so that when the first connecting member 50 is pressed toward the second connecting member 80 to perform the connection, the first fixing protrusion 60 of the fixing means 16 constituting the protrusion and the first fixing groove 90 constituting the concave portion that are meshed with each other do not separate.

[0104] The connecting portion 24 (on the operating rod side) and / or the connecting portion 32 (on the tip tool side) is provided with a means 18 for suppressing rebound from the hand 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.

[0105] The restraining means 18 is composed of a rebound member 70.

[0106] The repulsive member 70 is arranged to press the first connecting member 50 toward the connected portion or to connect the second connecting member 80 so that the first fixing protrusion 60 constituting the protrusion and the first fixing groove 90 constituting the concave portion that are meshed with each other do not separate.

[0107] The repulsive member 70 is inserted into the connecting portion 24 (on the operating rod side) or the tool portion (the distal tool portion) 30 in a manner that presses the first connecting member 50 toward the distal tool 14 side or presses the fixing means 16 toward the fixing groove 90 .

[0108] The operating rod 12 has a first connection portion 40 thinner than the operating rod body 20 formed on the side connected to the tool end, and a second connection portion 42 thicker than the first connection portion 40 is continuously provided on the tool end 14 side of the first connection portion 40 .

[0109] The first connection portion 40 is configured to form a movement space in the axial direction of the first connection member 50 between the first connection portion 40 and the operation rod body 20 .

[0110] The first connection portion 40 may be provided with a coil spring as a repelling member 70 constituting the fixing means 16 around the first connection portion 40 .

[0111] The first connecting member 50 is formed so that when the connecting part 32 (on the front end tool side) as the connected part is installed on the connecting part 24 on the rod body side (on the operating rod side) in a locked state, it is fixed to the first connecting member side area of ​​the second connecting member 80 by the fixing means 16, and the movement of the second connecting member 80 is controlled to prevent the fixing means 16 on the rod body side from detaching from the fixing means 16 formed on the second connecting member 80.

[0112] In this embodiment, the operating rod body 20 of the operating rod 12 has a generally circular cross section, the first connecting portion 40 and the second connecting portion 42 of the core member 44 have generally circular cross sections, the first connecting member 50 has a generally circular cross section, and the second connecting member 80 has a generally circular cross section.

[0113] The operating rod body 20 , the core member 44 , the first connecting member 50 , and the second connecting member 80 of the operating rod 12 are arranged concentrically with a center line extending in the axial direction of the rod body.

[0114] The connecting portion 24 on the operating rod 12 side as a rod body and the connecting portion 32 on the connected portion side are arranged concentrically with a center line extending in the axial direction of the rod body, and a convex portion is formed on one side and a concave portion is formed on the other side, and the convex portion and the concave portion are combined to connect.

[0115] In this embodiment, the core member 44 constituting a convex portion is formed in the connection portion 24 (on the operation rod side), and the rod body side connection portion mounting hole 94 constituting a concave portion is formed in the connection portion 32 (on the tool end side).

[0116] The core component 44 is a rod-shaped body with a roughly circular cross-section, and the rod body side connecting portion mounting hole 94 is an annular body with a roughly circular cross-section. They are arranged concentrically with a center line extending in the axial direction of the rod body. The core component 44 is combined with the rod body side connecting portion mounting hole 94 to connect the connecting portion 24 on the operating rod 12 side and the connecting portion 32 on the connected portion side.

[0117] The first connecting member 50 may be disposed on the operating rod in the area on the hand side of the operating rod 12 that is divided into two.

[0118] The second connecting member 80 may be provided on the operating rod on the distal tool side of the operating rod 12 that is divided into two.

[0119] (First Embodiment)

[0120] Mainly based on Figures 1 to 9 A connection structure 10 as a first embodiment according to the present invention will be described.

[0121] The connection structure 10 as the first embodiment of the present invention is a connection structure that connects an operation rod 12 constituting a rod body and a connection portion of a tip tool 14 constituting a connected portion connected to the operation rod 12 .

[0122] The operating rod 12 includes an operating rod body 20 constituting a main body of a long cylindrical rod, a grip portion 22 attached to the rear end of the operating rod body 20, i.e., the front side of the hand, and a connecting portion 24 (on the operating rod side) formed at the front end side of the operating rod body 20, i.e., the area on the side where the front end tool 14 is installed.

[0123] The operating rod 12, particularly the operating rod main body 20, constituting the insulating operating rod for indirect live wire construction may be constructed of, for example, a single rod or two rods arranged in parallel on the axis.

[0124] The insulating operating rod for indirect live wire construction only needs to have electrical insulation, and it is more preferable if it can be lightweight. For example, various plastics with strong toughness such as fiber reinforced plastic (FRP) can be used.

[0125] The front end tool 14 such as the indirect live wire construction tool is composed of, for example, a stripper, pliers, a locking tool, etc. for stripping the insulating film of the overhead power distribution line in the live wire state.

[0126] The tip tool 14 includes a tool portion 30 that directly contacts the electric wire or the like, and a connecting portion 32 (on the tip tool side) that is formed in a region connecting the tool portion 30 and the operation rod 12 and constitutes a connected portion.

[0127] The connecting portion 24 on the operating rod 12 side as a rod body and the connecting portion 32 on the connected portion side are arranged concentrically with a center line extending in the axial direction of the rod body, and a convex portion is formed on one side and a concave portion is formed on the other side, and the convex portion and the concave portion are combined to connect.

[0128] In this embodiment, the core member 44 constituting a convex portion is formed in the connection portion 24 (on the operation rod side), and the rod body side connection portion mounting hole 94 constituting a concave portion is formed in the connection portion 32 (on the tool end side).

[0129] The core component 44 is a rod-shaped body with a roughly circular cross-section, and the rod body side connecting portion mounting hole 94 is an annular body with a roughly circular cross-section. They are arranged concentrically with a center line extending in the axial direction of the rod body. The core component 44 is combined with the rod body side connecting portion mounting hole 94 to connect the connecting portion 24 on the operating rod 12 side and the connecting portion 32 on the connected portion side.

[0130] The operation rod 12 is provided with a fixing means 16 constituting a separation preventing means for fixing the tip tool 14 and preventing the members connected by the connection structure from being separated, in a region on the side connected to the tip tool 14 .

[0131] Furthermore, the operating rod 12 is provided with a restraining means 18 constituting a separation preventing means for restraining the movement of the operating rod 12 and the front end tool 14 to prevent their connection from being disengaged and for preventing the parts connected by the connection structure from being separated.

[0132] The connecting portion 24 of the operating rod 12 constituting the connecting portion of the rod body is composed of a first connecting portion 40 thinner than the operating rod main body 20 formed on the side connected to the operating rod main body 20, and a core member 44 in which a second connecting portion 42 thicker than the first connecting portion 40 is continuously arranged on the front end tool 14 side of the first connecting portion 40.

[0133] The core member 44 constituting the connection portion 24 (on the operating rod side) of the operating rod body 20 is connected to the operating rod body 20 via the (first) operating rod mounting member 26 constituting the operating rod mounting member and the fixing pins 26a and 26b.

[0134] In this embodiment, if Figure 3 As shown in (C), the (first) operation rod mounting member 26 and the core member 44 are fitted into the recessed portion 20a provided on the front end side of the operation rod body 20, and are fixed by the fixing pins 26a and 26b.

[0135] The first connection portion 40 of the core member 44 is inserted around the (first) operation rod mounting member 26 and fitted into the recessed portion 20 a provided at the front end of the operation rod body 20 , and is fixed to the operation rod body 20 .

[0136] In the present embodiment, the connection portion 24 (on the operation rod side) includes a core member 44 constituting the first connection portion 40 and the second connection portion 42 .

[0137] The core member 44 has a hollow cylindrical shape and is disposed around the (first) operation rod mounting member 26 and the (second) operation rod mounting member 28 constituting the operation rod mounting member.

[0138] In the present embodiment, the core member 44 has a first connection portion 40 formed of a cylindrical portion thinner than the operation rod body 20 on the hand side and mounted on the operation rod body 20, and a second connection portion 42 formed of a thick cylindrical portion thicker than the first connection portion 40 on the hand side on the front end side.

[0139] The core member 44 has a shape to be inserted into a rod-side connecting portion mounting hole 94 formed in a hollow portion provided in the second connecting portion 84 of the second connecting member 80 , and in the present embodiment is configured in a cylindrical shape that is slidable in the hollow portion.

[0140] The core member 44 has a hollow annular hollow portion 46 extending in the longitudinal direction.

[0141] The hollow portion 46 has a first hollow portion 46 a that is narrowed and elongated substantially in the center thereof, and a second hollow portion 46 b that is thicker and has a larger diameter than the first hollow portion 46 a is formed on the front end side of the first hollow portion 46 a .

[0142] Furthermore, the hollow portion 46 has a third hollow portion 46 c which is thicker and has a larger diameter than the first hollow portion 46 a , formed on the hand side of the first hollow portion 46 a .

[0143] The core member 44 is provided with an operation rod mounting member ((first) operation rod mounting member 26 ) for mounting to the operation rod body 20 in the third hollow portion 46 c of the hollow portion 46 .

[0144] The operation rod mounting member (the (first) operation rod mounting member 26 ) is fixed to the front end of the operation rod body 20 , and the third hollow portion 46 c of the core member 44 is fitted around the (first) operation rod mounting member 26 for mounting.

[0145] The (second) operating rod mounting member 28 is embedded in the hollow portion 46, and its hand side is located in the third hollow portion 46c. It is slidably embedded in the first hollow portion 46a relative to the front end side here, and then extends toward the front end side in the second hollow portion 46b relative to the front end side here and is connected to the columnar core member mounting portion 96.

[0146] In the present embodiment, the (second) operating rod mounting member 28 is a cylindrical rod body, the hand side of which has a head having a larger diameter than the first hollow portion 46a, and the front end of which has a rod-shaped body having a diameter substantially the same as that of the first hollow portion 46a. Therefore, the second hollow portion 46b is configured to have a hollow portion remaining between the (second) operating rod mounting member 28, and the third rebound member 98 can be embedded therein.

[0147] The connecting portion on the rod body side and the connecting portion on the connected portion side are constructed such that a first fixing protrusion 60 is formed on one side as a fixing means 16 constituting a protrusion, and a first fixing groove 90 is formed on the other side as a fixing means 16 constituting a recess, and the protrusion and recess are combined for connection.

[0148] The fixing means 16 is composed of a first fixing protrusion (pin) 60 formed at the connecting portion on the rod body side and constituting a separation prevention means.

[0149] The fixing means formed in the second coupling member 80 or the fixing means 16 formed in the core member 44 is composed of a first fixing groove 90 formed in a corresponding position in the core member 44 and / or the second coupling member 80 and serving as a zigzag fixing groove constituting a separation preventing means.

[0150] In this embodiment, the core member 44 has a first fixing protrusion (pin) 60 constituting the fixing means 16 mounted on the second connecting portion 42 side, and a repulsive member 70 constituting the restraining means 18 is inserted around the first connecting portion 40 side.

[0151] The connection portion 24 (on the operation rod side) includes a core member 44 fixed to the center of the operation rod body 20 at the front end thereof, and a first connection member 50 is disposed around the core member 44 .

[0152] Furthermore, the coupling portion 24 (on the operating rod side) is provided with a restraining means 18 formed of a rebound member 70 such as a coil spring, which is formed to rebound from the hand side of the operating rod 12 toward the tip tool 14 side, around the hand side of the core member 44 .

[0153] In the first embodiment, a rebound member mounting portion 72 for stopping the front end side of the rebound member 70 is formed on the hand side of the first connecting member 50 .

[0154] Furthermore, the operating rod body 20 of the operating rod 12 has a repulsive member mounting portion 74 formed at its front end side on the side facing the outer surface on the hand side of the first connecting member 50 for stopping the rear end side of the repulsive member 70 .

[0155] The repulsive member 70 constituting the restraining means 18 is configured to bias the first coupling member 50 toward the second coupling member 80 constituting the connected portion when the tip tool 14 is attached to the operating rod 12 .

[0156] The first repulsive member 70 constituting the restraining means 18 presses the first connecting member 50 toward the front end when locked, and accordingly presses the second connecting member 80 toward the front end. (Types 1, 3, 4)

[0157] The diameter of the suppressing means 18 (rebound member 70 ) is shorter than the diameters of the first coupling member 50 and the rebound member mounting portion 74 , and is configured not to pop out from the first coupling member 50 and the rebound member mounting portion 74 .

[0158] Therefore, the probability of the restraining means 18 hitting other objects when in use is extremely low.

[0159] The first connecting portion 40 is configured to form a moving space for the first connecting member 50 described later between the first connecting portion 40 and the operating rod body 20, and the second connecting portion 42 is provided with the first fixing protrusion (pin) 60, and is configured to allow the second connecting member 80 constituting the connecting portion 32 (on the front end tool side) to be inserted around it.

[0160] The first connecting member 50 is annular and nested around the roughly cylindrical core member 44. It is configured to be movable in the length direction of the core member 44 and the operating rod body 20, and is configured to be rebounded toward the front end side by a rebound member 70 inserted between the hand side of the first connecting member 50 and the front end side of the operating rod body 20.

[0161] The first fixing protrusion (pin) 60 is formed at the center of the coupling portion 24 (on the operation rod side) so as to extend in the radial direction.

[0162] The first fixing projection (pin) 60 is formed to be movable in the axial direction of the operating rod 12 relative to the tip tool 14 as the operating rod 12 moves, and is formed to be rotatable in the circumferential direction of the operating rod 12 as the operating rod 12 rotates.

[0163] The connecting portion 32 (on the tool end side) constitutes a mounted portion to be mounted on the operating rod 12 , and is provided with a second connecting member 80 formed so as to be able to connect to the connecting portion 24 on the operating rod 12 side.

[0164] The second connecting member 80 has a first fixing groove 90 as a fixing means 16 for stopping the first fixing protrusion (pin) 60 provided on the connecting portion 24 on the operating rod 12 side formed in the area on the side connected to the operating rod 12. The first fixing groove 90 is inserted with the first fixing protrusion (pin) 60, and constitutes the fixing means 16 for fixing the first fixing protrusion (pin) 60 when the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the front end tool side) are connected.

[0165] The first connecting member 50 and the second connecting member 80 have substantially the same or similar outer shapes. In the present embodiment, they are cylindrical shapes with circular cross sections, and the diameters of the outer surfaces have the same or similar dimensions.

[0166] Therefore, there is substantially no step at the boundary between the second connecting member 80 and the first connecting member 50 , and the probability of hitting other objects is extremely low.

[0167] The first connecting member 50 and the second connecting member 80 are configured such that the surfaces thereof in contact are in close contact with each other, and the first connecting member 50 presses the second connecting member 80 by the biasing force of the restraining means 18 (rebound member 70 ).

[0168] In this embodiment, the front end face 50E of the first connecting member 50 is a plane perpendicular to the axial direction, and the rear end face 80E of the second connecting member 80 is a plane perpendicular to the axial direction. Therefore, the front end face 50E of the first connecting member 50 and the rear end face 80E of the second connecting member 80 are in close contact.

[0169] The surface of the rebound member mounting portion 72 at the rear end of the first connecting member 50 that is opposite to the rebound member mounting portion 74 is a plane that is orthogonal to the axial direction. On the other hand, the opposite surface of the front end of the rebound member mounting portion 74 is a plane that is orthogonal to the axial direction. The restraining means 18 (rebound member 70) sandwiched therebetween is configured to be able to apply force to the first connecting member 50 parallel to the axial direction.

[0170] The diameter of the suppressing means 18 (rebound member 70 ) is shorter than the diameters of the first coupling member 50 and the rebound member mounting portion 74 , and is configured not to pop out from the first coupling member 50 and the rebound member mounting portion 74 .

[0171] The first fixed groove 90 includes a first groove portion 90A opened on the side of the operating rod 12, a second groove portion 90B opened next to the first groove portion 90A, and a third groove portion 90C opened next to the second groove portion 90B. The first groove portion 90A extends in the longitudinal direction, the second groove portion 90B extends in the circumferential direction, and the third groove portion 90C extends in the longitudinal direction and forms a dead end.

[0172] The first fixing groove 90 is formed in an L-shape in a plan view, and is configured so that when the tip tool 14 is attached to the operating rod 12 , the first fixing protrusion (pin) 60 stops in the third groove portion 90C and does not move.

[0173] The first fixing groove 90 has a depth that allows the head of the first fixing protrusion (pin) 60 to be inserted to slightly protrude, and a width that allows the shaft of the first fixing protrusion (pin) 60 to be inserted to move.

[0174] According to the above structure, the second connecting member 80, at the bottom of the third groove portion 90C, uses the force of the rebound member 70 and the second rebound member 76 to press the fixing means 16 (first fixing protrusion (pin) 60) protruding and fixed in the radial direction in the second connecting portion 42 of the first connecting portion 40 connected to the operating rod body 20 toward the front end side (mounted portion) so that the third groove portion 90C and the fixing means 16 (first fixing protrusion (pin) 60) are engaged, so that the second connecting member 80 does not move in the lock release direction.

[0175] The first fixing protrusion (pin) 60 is protruded in the radial direction of the first connecting member 50.

[0176] The first fixing groove 90 has a depth that allows the head of the embedded first fixing protrusion (pin) 60 to slightly protrude, and a width that allows the shaft of the embedded first fixing protrusion (pin) 60 to move.

[0177] The first groove 90A extends in a manner that enables the fixing means 16 (first fixing protrusion (pin) 60) to advance toward the distal end side, that is, extends in a direction connecting the operating rod 12 to the distal end tool 14, and in this embodiment, is composed of a groove parallel to the axial direction.

[0178] The second groove 90B has a length that allows the fixing means 16 (first fixing protrusion (pin) 60) that has advanced in the radial direction from the first groove 90A to advance to a position where it does not return to the first groove 90A, and in the present embodiment is composed of a groove that is orthogonal to the axial direction.

[0179] The first groove portion 90A, the second groove portion 90B, and the third groove portion 90C are grooves having approximately the same width, and are each formed of a groove bent in an L-shape.

[0180] The width and depth thereof are configured so that the first fixing protrusion (pin) 60 and the second fixing protrusion (plunger) 62 can move forward in the extending direction of the groove in a state of being fitted.

[0181] The third groove portion 90C extends in a manner that enables the fixing means 16 (first fixing protrusion (pin) 60) to advance toward the hand side, that is, toward the opposite side of the direction in which the operating rod 12 is connected to the front end tool 14, and in a manner that the fixing means 16 (first fixing protrusion (pin) 60) that advances along the second groove portion 90B to a position where it does not move radially will not advance further toward the opposite side of the direction in which the connection is performed, thus forming a dead end.

[0182] The fixing means 16 (first fixing protrusion (pin) 60) is fixed to the recessed portion constituting the second connecting portion 42, and the portion protruding from the outer surface of the recessed portion constituting the second connecting portion 42 functions as a fixing protrusion.

[0183] The second connecting member 80 constitutes a mounted portion mounted on the (front end) tool part 30 and connected to the operating rod 12, and comprises a first connecting portion 82 as a front end tool mounting portion mounted on the (front end) tool part 30, and a second connecting portion 84 thicker than the first connecting portion 82 as the front end tool mounting portion.

[0184] The first connection portion 82 is fitted into the mounting portion of the (front end) tool portion 30 , and is fixed to the (front end) tool portion 30 by an appropriate fixing member (eg, a pin, etc.).

[0185] The second connection portion 84 constitutes a hollow core member mounting portion, and is formed with a rod body side connection portion mounting hole 94 into which the core member 44 is fitted.

[0186] The second connection portion 84 is provided with a columnar core member mounting portion 96 in the rod-side connection portion mounting hole 94 .

[0187] The columnar core member mounting portion 96 is inserted into the annular hollow portion 46 between the second connection portion 42 of the core member 44 and the (second) operation rod mounting member 28 , and is in contact with and connected to the front end side of the (second) operation rod mounting member 28 .

[0188] The (second) operation rod mounting member 28 is arranged in series with the columnar core member mounting portion 96 , and is mounted on the second connecting portion 42 of the core member 44 .

[0189] The columnar core member mounting portion 96 is configured to hit the hand side portion of the second connecting member 80, and a second rebound member 76 is provided in the second hollow portion 46b between the hand side end portion 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 rebound member 76 is formed by a coil spring or the like formed to rebound the columnar core member mounting portion 96 toward the hand side or the front end side.

[0190] The second repulsive member 76 constituting the restraining means 18 contracts when locked to press the core member mounting portion 96 and the second connecting portion 84 toward the front end side. (Types 1 to 3)

[0191] The second resilient member 76 normally presses the core member mounting portion 96 and the second connecting portion 84 toward the front end, and is slightly contracted in the locked state. When the second connecting member 80 is pulled toward the front of the hand by the releasing action, it is further contracted.

[0192] like Figure 3 As shown in (B), the columnar core member mounting portion 96 is fitted into the hollow portion 46 of the second coupling portion 42 and fixed to the (second) operation rod mounting member 28 by the anti-detachment screw 28a.

[0193] The columnar core member attachment portion 96 has a shape that is inserted into the second hollow portion 46 b formed in the hollow portion provided in the second connection portion 42 , and in the present embodiment is configured in a cylindrical shape that is slidable in the hollow portion.

[0194] The columnar core member mounting portion 96 has a bottomed hole formed on the hand side so that the (second) operation rod mounting member 28 can be fitted therein, and the (second) operation rod mounting member 28 is connected to the columnar core member mounting portion 96 .

[0195] The columnar core member attachment portion 96 has a shape that is inserted into the second hollow portion 46 b formed in the hollow portion provided in the second connection portion 42 , and in the present embodiment is configured in a cylindrical shape that is slidable in the hollow portion.

[0196] The columnar core member mounting portion 96 has a bottomed hole on the hand side into which the (second) operation rod mounting member 28 can be fitted, and is configured so that the (second) operation rod mounting member 28 and the columnar core member mounting portion 96 are connected.

[0197] The (second) operating rod mounting member 28 extends to the hand side of the columnar core member mounting portion 96, and the second rebound member 76 is inserted around it. The head protruding to the third hollow portion 46c is fixed to the first hollow portion 46a and is installed in the second hollow portion 46b.

[0198] The first connecting member 50 and the second connecting member 80 have substantially the same or similar outer shapes. In the present embodiment, they are cylindrical shapes with circular cross sections, and the diameters of the outer surfaces have the same or similar dimensions.

[0199] Therefore, there is substantially no step at the boundary between the second connecting member 80 and the first connecting member 50 , and the probability of hitting other objects is extremely low.

[0200] The first connecting member 50 and the second connecting member 80 are configured such that their contacting surfaces are in close contact with each other, and the first connecting member 50 presses the second connecting member 80 with a uniform force by the biasing force of the restraining means 18 (rebound member 70 ).

[0201] The surface of the rebound member mounting portion 72 at the rear end of the first connecting member 50 that is opposite to the rebound member mounting portion 74 is a plane that is orthogonal to the axial direction. On the other hand, the opposite surface of the front end of the rebound member mounting portion 74 is a plane that is orthogonal to the axial direction. The restraining means 18 (rebound member 70) sandwiched therebetween is capable of applying force to the first connecting member 50 by a force parallel to the axial direction.

[0202] The first connecting member 50 is arranged on the operating rod 12 in a manner that allows it to move in the axial direction of the operating rod 12. When the front end tool 14 is mounted on the operating rod 12, it is fixed to the area on the operating rod 12 side of the second connecting member 80 to control the movement of the second connecting member 80 to prevent the connecting portion 24 (on the operating rod side) from detaching from the first fixing groove 90 of the second connecting member 80.

[0203] The first connecting member 50 includes a fixing means 16 for controlling the movement of the second connecting member 80 .

[0204] The fixing means 16 of the core member 44 is provided with an external thread portion 48 on the outer periphery of the area where the first connecting member 50 is loaded and inserted, and on the other hand, the fixing means 16 of the first connecting member 50 is provided with an internal thread portion 58 in the tube of the area inserted in the core member 44.

[0205] The fixing means 16 of the first connecting member 50 is threadedly connected to the fixing means 16 of the core member 44 , and the first connecting member 50 can be moved in the longitudinal direction of the operating rod 12 by rotating it and can be stopped at a position suitable for pressing the second connecting member 80 by the first connecting member 50 .

[0206] In this embodiment, the operating rod body 20 of the operating rod 12 is a rod body with a roughly 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 roughly circular cross section, the first connecting member 50 is a roughly circular ring body with a roughly circular cross section, and the second connecting member 80 is a roughly circular ring body with a roughly circular cross section.

[0207] The operating rod body 20 , the core member 44 , the first connecting member 50 , and the second connecting member 80 of the operating rod 12 are arranged concentrically with a center line extending in the axial direction of the rod body.

[0208] The first connecting member 50 is disposed around the second connecting portion 42 of the core member 44, and the second connecting member 80 is disposed around the front end side of the core member 44. The front end side edge of the first connecting member 50 and the hand side edge of the second connecting member 80 are formed to face each other.

[0209] Next, regarding the operation method, the following description assumes that the insulating operating rod 12 having the connection structure 10 involved in the embodiment is used to operate the front end tool 14 for the indirect live wire connected to the front end of the insulating operating rod 12 in order to form an overhead power distribution line bypass circuit.

[0210] First, if Figure 1 and 2 As shown, in order to assemble the front end tool 14 for indirect live wire construction on the front end of the insulating operating rod 12, the operator connects the connecting part 24 (on the operating rod side) of the insulating operating rod 12 and the connecting part 32 (on the front end tool side) of the front end tool 14 that constitute the connecting structure 10.

[0211] Specifically, the axis of the connecting portion 24 on the operating rod 12 side (operating rod side) is aligned with the axis of the connecting portion 32 on the tip tool 14 side (tip tool side), and the first fixing protrusion (pin) 60 is aligned with the first groove portion 90A of the first fixing groove 90.

[0212] Next, move the operating rod 12 toward the front end tool 14 side, insert the first fixed protrusion (pin) 60 into the second groove portion 90B of the first fixed groove 90, and when it reaches the groove wall on the front end tool 14 side of the second groove portion 90B, rotate the operating rod 12 in the circumferential direction to move the first fixed protrusion (pin) 60 along the groove of the second groove portion 90B toward the third groove portion 90C.

[0213] When the connecting structure 10 reaches the notch of the third groove 90C, that is, reaches the end of the second groove 90B, the operating rod 12 is pulled back from the front tool 14 side to the hand side to fit the first fixing protrusion (pin) 60 into the third groove 90C.

[0214] Therefore, by rotating the first connecting member 50, the first connecting member 50 is moved in the length direction of the operating rod 12 due to the action of the external thread portion 48 of the first connecting member 50 and the internal thread portion 58 of the core member 44, so that it moves to a position where the first connecting member 50 presses the second connecting member 80, so that the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the front end tool side) of the front end tool 14 are firmly connected.

[0215] Next, regarding the unlocking of the connection portion 24 (on the operation rod side) of the operation rod body 20 and the connection portion 32 (on the front end tool side) of the tool portion (front end tool portion) 30 in the connection structure 10, mainly based on Figure 4 To explain. At this time, the first connecting member 50 is rotated to release the meshing of the external thread portion 48 and the internal thread portion 58 and move it toward the hand side. Then, the connecting portion 24 (on the operating rod side) of the operating rod body 20 is moved toward the front end side (the first connecting member 50 is pressed toward the hand side by the second connecting member 80), so that the first fixing protrusion (pin) 60 constituting the fixing means 16 is disengaged from the third groove portion 90C, and the operating rod 12 is rotated to move the first fixing protrusion (pin) 60 along the second groove portion 90B. When the first groove portion 90A of the first fixing groove 90 is located, the operating rod 12 is moved toward the hand side to disengage the first fixing protrusion (pin) 60 from the first fixing groove 90, so that the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the front end tool side) of the front end tool 14 can be separated.

[0216] (Second Embodiment)

[0217] Next, regarding the connection structure of the second embodiment as a modification of the first embodiment, mainly based on FIGS. Fig.15 to explain.

[0218] In the description of the connection structure of the second embodiment as a modification of the first embodiment, Figures 1 to 9 The same reference numerals are used to denote the common components and elements of the connection structure 10 of the first embodiment shown in the figure, and the description of the common components and elements will be omitted.

[0219] Hereinafter, the characteristic components and elements of the connection structure which is a modification of the first embodiment will be mainly described.

[0220] The connection structure 10 as the second embodiment of the present invention is a connection structure that connects an operation rod 12 constituting a rod body and a connection portion of a tip tool 14 constituting a connected portion connected to the operation rod 12 .

[0221] The operating rod 12 includes a long cylindrical operating rod body 20, a grip portion 22 attached to the rear end of the operating rod body 20, i.e., the front side of the hand, and a connecting portion 24 (on the operating rod side) formed at the front end side of the operating rod body 20, i.e., the area on the side to be attached to the front end tool 14.

[0222] The front end tool 14 such as the indirect live wire construction tool is composed of, for example, a stripper, pliers, a locking tool, etc. for stripping the insulating film of the overhead power distribution line in the live wire state.

[0223] The tip tool 14 includes a tool portion 30 that directly contacts the electric wire or the like, and a connecting portion 32 (on the tip tool side) that is formed in a region connecting the tool portion 30 and the operation rod 12 and constitutes a connected portion.

[0224] The connecting portion 24 on the operating rod 12 side as a rod body and the connecting portion 32 on the connected portion side are arranged concentrically with a center line extending in the axial direction of the rod body, and a convex portion is formed on one side and a concave portion is formed on the other side, and the convex portion and the concave portion are combined to connect.

[0225] In this embodiment, the core member 44 constituting a convex portion is formed in the connection portion 24 (on the operation rod side), and the rod body side connection portion mounting hole 94 constituting a concave portion is formed in the connection portion 32 (on the tool end side).

[0226] The core component 44 is a rod-shaped body with a roughly circular cross-section, and the rod body side connecting portion mounting hole 94 is an annular body with a roughly circular cross-section. They are arranged concentrically with a center line extending in the axial direction of the rod body. The core component 44 is combined with the rod body side connecting portion mounting hole 94 to connect the connecting portion 24 on the operating rod 12 side and the connecting portion 32 on the connected portion side.

[0227] The operation rod 12 is provided with a fixing means 16 constituting a separation preventing means for fixing the tip tool 14 and preventing the members connected by the connection structure from being separated, in a region on the side connected to the tip tool 14 .

[0228] Furthermore, in the area on the side where the operating rod 12 is connected to the front end tool 14, a restraining means 18 is provided to restrain the movement of the operating rod 12 and the front end tool 14 to prevent their connection from being disengaged and to prevent the parts connected by the connection structure from being separated, constituting a separation prevention means.

[0229] The connecting portion 24 of the operating rod 12 constituting the connecting portion of the rod body is composed of a first connecting portion 40 thinner than the operating rod main body 20 formed on the side connected to the operating rod main body 20, and a core member 44 in which a second connecting portion 42 thicker than the first connecting portion 40 is continuously arranged on the front end tool 14 side of the first connecting portion 40.

[0230] The core member 44 constituting the connection portion 24 (on the operation rod side) of the operation rod body 20 is connected to the operation rod body 20 via the operation rod mounting member (the (first) operation rod mounting member 26 and the fixing pins 26 a and 26 b ).

[0231] In this embodiment, if Figure 7 and Figure 8As shown in FIG. 1 , the (first) operation rod mounting member 26 and the core member 44 are fitted into the recessed portion 20 a provided on the front end side of the operation rod body 20 , and are fixed by the fixing pins 26 a and 26 b .

[0232] The first connection portion 40 of the core member 44 is inserted around the (first) operation rod mounting member 26 and fitted into the recessed portion 20 a provided at the front end of the operation rod body 20 , and is fixed to the operation rod body 20 .

[0233] In the present embodiment, the connection portion 24 (on the operation rod side) includes a core member 44 constituting the first connection portion 40 and the second connection portion 42 .

[0234] The core member 44 has a hollow cylindrical shape and is disposed around the operation rod mounting members (the (first) operation rod mounting member 26 and the (second) operation rod mounting member 28 ).

[0235] In the present embodiment, the core member 44 has a first connection portion 40 formed of a cylindrical portion thinner than the operation rod body 20 on the hand side and mounted on the operation rod body 20, and a second connection portion 42 formed of a thick cylindrical portion thicker than the first connection portion 40 on the hand side on the front end side.

[0236] The core member 44 has a hollow annular hollow portion 46 extending in the longitudinal direction.

[0237] The hollow portion 46 has a first hollow portion 46 a which is narrowed and elongated substantially in the center thereof, and a second hollow portion 46 b which is thicker and has a larger diameter than the first hollow portion 46 a is formed on the front end side of the first hollow portion 46 a .

[0238] Furthermore, the hollow portion 46 has a third hollow portion 46 c which is thicker and has a larger diameter than the first hollow portion 46 a , formed on the hand side of the first hollow portion 46 a .

[0239] The core member 44 is provided with an operation rod mounting member ((first) operation rod mounting member 26 ) for mounting to the operation rod body 20 in the third hollow portion 46 c of the hollow portion 46 .

[0240] The operation rod mounting member (the (first) operation rod mounting member 26 ) is fixed to the front end of the operation rod body 20 , and the third hollow portion 46 c of the core member 44 is fitted around the (first) operation rod mounting member 26 for mounting.

[0241] The (second) operating rod mounting member 28 is embedded in the hollow portion 46, and its hand side is located in the third hollow portion 46c. It is slidably embedded in the first hollow portion 46a relative to the front end side here, and then extends toward the front end side in the second hollow portion 46b relative to the front end side here and is connected to the columnar core member mounting portion 96.

[0242] In the present embodiment, the (second) operating rod mounting member 28 is a cylindrical rod body, the hand side of which has a head having a larger diameter than the first hollow portion 46a, and the front end of which has a rod-shaped body having a diameter substantially the same as that of the first hollow portion 46a. Therefore, the second hollow portion 46b is configured to have a hollow portion remaining between the (second) operating rod mounting member 28, and the second rebound member can be embedded therein.

[0243] The connecting portion on the rod body side and the connecting portion on the connected portion side are configured such that a convex portion 62c is formed on one side and a concave portion 92a is formed on the other side, and the convex portion 62c and the concave portion 92a are combined to form a connection.

[0244] The fixing means 16 is composed of a first fixing protrusion (pin) 60 formed at the connecting portion on the rod body side and constituting a separation prevention means.

[0245] The fixing means formed in the second coupling member 80 or the fixing means formed in the core member 44 is constituted by fixing grooves formed at corresponding positions in the core member 44 and / or the second coupling member 80 and constituting meandering separation prevention means.

[0246] In this embodiment, the core member 44 is provided with a first fixing protrusion (pin) 60 constituting the fixing means 16 on the second connecting portion 42. In addition, a rebound member 70 constituting the restraining means 18 may be inserted around the first connecting portion 40.

[0247] The connecting portion 24 (on the operation rod side) is provided with a first connecting member 50 .

[0248] In the second embodiment, although the repulsive member 70 constituting the restraining means 18 is not disposed on the coupling portion 24 (on the operation rod side), it may be disposed on the hand side of the core member 44 .

[0249] A rebound member mounting portion 72 for stopping the front end side of the rebound member 70 is formed on the hand side of the first connecting member 50 .

[0250] Furthermore, the operating rod body 20 of the operating rod 12 has a repulsive member mounting portion 74 formed at its front end side on the side facing the outer surface on the hand side of the first connecting member 50 for stopping the rear end side of the repulsive member 70 .

[0251] The repulsive member 70 constituting the restraining means 18 may be configured to bias the first coupling member 50 toward the second coupling member 80 when the tip tool 14 is attached to the operating rod 12 .

[0252] The connection portion 24 (on the operation rod side) includes a core member 44 fixed to the center of the operation rod body 20 at the front end thereof, and a first connection member 50 is disposed around the core member 44 .

[0253] Furthermore, the coupling portion 24 (on the operating rod side) is provided with a restraining means 18 formed of a rebound member 70 such as a coil spring, which is formed to rebound from the hand side of the operating rod 12 toward the tip tool 14 side, around the hand side of the core member 44 .

[0254] The first connecting portion 40 is configured to form a moving space for the first connecting member 50 described later between the first connecting portion 40 and the operating rod body 20, and the second connecting portion 42 is provided with the first fixing protrusion (pin) 60, and is configured to allow the second connecting member 80 constituting the connecting portion 32 (on the front end tool side) to be inserted around it.

[0255] The first connecting member 50 is annular, and is inserted around the substantially cylindrical core member 44, and is configured to be twisted in the longitudinal direction of the core member 44 and the operating rod body 20. It is configured to be rebounded toward the front end side by a rebound member 70 (not shown) inserted between the hand side of the first connecting member 50 and the front end side of the operating rod body 20.

[0256] The first fixing protrusion (pin) 60 is formed at the center of the coupling portion 24 (on the operation rod side) so as to extend in the radial direction.

[0257] The first fixing protrusion (pin) 60 is formed to be movable in the axial direction of the operating rod 12 relative to the tip tool 14 in accordance with the movement of the operating rod 12 , and is formed to be rotatable in the circumferential direction of the operating rod 12 .

[0258] The connecting portion 32 (on the tool end side) constitutes a mounted portion to be mounted on the operating rod 12 , and is provided with a second connecting member 80 formed so as to be able to connect to the connecting portion 24 on the operating rod 12 side.

[0259] The second connecting member 80 has a first fixing groove 90 formed in the area on the side connected to the operating rod 12 for stopping the first fixing protrusion (pin) 60 provided on the connecting portion 24 on the operating rod 12 side. The first fixing groove 90 is inserted with the first fixing protrusion (pin) 60, and constitutes the fixing means 16 for fixing the first fixing protrusion (pin) 60 when the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the front end tool side) are connected.

[0260] The first fixed groove 90 includes a first groove portion 90A opened on the side of the operating rod 12, a second groove portion 90B opened next to the first groove portion 90A, and a third groove portion 90C opened next to the second groove portion 90B. The first groove portion 90A extends in the longitudinal direction, the second groove portion 90B extends in the circumferential direction, and the third groove portion 90C extends in the longitudinal direction and forms a dead end.

[0261] The first fixing groove 90 is formed in an L-shape in a plan view, and is configured so that when the tip tool 14 is attached to the operating rod 12 , the first fixing protrusion (pin) 60 stops in the third groove portion 90C and does not move.

[0262] The first fixing groove 90 has a depth that allows the head of the first fixing protrusion (pin) 60 to be inserted to slightly protrude, and a width that allows the shaft of the first fixing protrusion (pin) 60 to be inserted to move.

[0263] According to the above structure, the second connecting member 80, at the bottom of the third groove portion 90C, uses the force of the rebound member 70 and the second rebound member 76 to press the fixing means 16 (first fixing protrusion (pin) 60) protruding and fixed in the radial direction in the second connecting portion 42 of the first connecting portion 40 connected to the operating rod body 20 toward the front end side (mounted portion) so that the third groove portion 90C and the fixing means 16 (first fixing protrusion (pin) 60) are engaged, so that the second connecting member 80 does not move in the lock release direction.

[0264] The first fixing protrusion (pin) 60 is protruded in the radial direction of the first connecting member 50.

[0265] The first fixing groove 90 has a depth that allows the head of the embedded first fixing protrusion (pin) 60 to slightly protrude, and a width that allows the shaft of the embedded first fixing protrusion (pin) 60 to move.

[0266] The second connecting member 80 constitutes a mounted portion mounted on the (front end) tool part 30 and connected to the operating rod 12, and comprises a first connecting portion 82 as a front end tool mounting portion mounted on the (front end) tool part 30, and a second connecting portion 84 thicker than the first connecting portion 82 as the front end tool mounting portion.

[0267] The first connection portion 82 is fitted into a mounting portion of the (front end) tool portion 30 , and is fixed to the (front end) tool portion 30 by an appropriate fixing member (eg, a pin, etc.).

[0268] The second connection portion 84 constitutes a hollow core member mounting portion, and is formed with a rod body side connection portion mounting hole 94 into which the core member 44 is fitted.

[0269] The second connection portion 84 is provided with a columnar core member mounting portion 96 in the rod-side connection portion mounting hole 94 .

[0270] The columnar core member mounting portion 96 is inserted into the annular hollow portion 46 between the second connection portion 42 of the core member 44 and the (second) operation rod mounting member 28 , and is in contact with and connected to the front end side of the (second) operation rod mounting member 28 .

[0271] The (second) operation rod mounting member 28 is arranged in series with the columnar core member mounting portion 96 , and is mounted on the second connecting portion 42 of the core member 44 .

[0272] The columnar core member mounting portion 96 is configured to press against the hand side of the second connecting member 80, and a second rebound member 76 such as a coil spring is provided in the second hollow portion 46b between the hand 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, which is configured to rebound the columnar core member mounting portion 96 toward the hand side or the front end side.

[0273] The second rebound member 76 may also be omitted.

[0274] As shown in FIG. 10 , the columnar core member mounting portion 96 is fitted into the hollow portion 46 of the second coupling portion 42 and fixed to the (second) operation rod mounting member 28 by means of a retaining screw 28 a .

[0275] Furthermore, the columnar core member mounting portion 96 is provided with a third rebound member 98 such as a coil spring that rebounds from the front end tool 14 side toward the operating rod 12 side at a recessed portion penetrated through the rod body side connecting portion mounting hole 94 of the second connecting member 80 on its front end side.

[0276] The third repulsive member 98 may be fixed to the front end side of the columnar core member mounting portion 96, or may be inserted and fixed to a recessed portion 32a formed at the center of the connecting portion 32 (on the front end tool side).

[0277] The third repulsive member 98 constituting the restraining means 18 presses the second connecting member 80 toward the front end side when locked.

[0278] (Type 2)

[0279] The first connecting member 50 is arranged on the operating rod 12 in a manner that allows it to move in the axial direction of the operating rod 12. When the front end tool 14 is mounted on the operating rod 12, it is fixed to the area on the operating rod 12 side of the second connecting member 80 to control the movement of the second connecting member 80 to prevent the connecting portion 24 (on the operating rod side) from detaching from the first fixing groove 90 of the second connecting member 80.

[0280] The first connecting member 50 includes a fixing means 16 for controlling the movement of the second connecting member 80 .

[0281] The fixing means 16 of the core member 44 is composed of an external threaded portion 48 provided on the outer periphery of the area where the first connecting member 50 is loaded and the first connecting member 50 is inserted. On the other hand, the fixing means 16 of the first connecting member 50 is composed of an internal threaded portion 58 provided in the tube of the area inserted in the core member 44.

[0282] The internal thread portion 58 of the fixing means 16 constituting the first connecting member 50 is threadedly connected to the external thread portion 48 of the fixing means 16 constituting the core member 44. By rotating the first connecting member 50, it can be moved in the length direction of the operating rod 12 and can be stopped at a position suitable for pressing the second connecting member 80 through the first connecting member 50.

[0283] In this embodiment, the operating rod body 20 of the operating rod 12 is a rod body with a roughly 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 roughly circular cross section, the first connecting member 50 is a roughly circular ring body with a roughly circular cross section, and the second connecting member 80 is a roughly circular ring body with a roughly circular cross section.

[0284] The operating rod body 20 , the core member 44 , the first connecting member 50 , and the second connecting member 80 of the operating rod 12 are arranged concentrically with a center line extending in the axial direction of the rod body.

[0285] The first connecting member 50 is disposed around the second connecting portion 42 of the core member 44, and the second connecting member 80 is disposed around the front end side of the core member 44. The front end side edge of the first connecting member 50 and the hand side edge of the second connecting member 80 are formed to face each other.

[0286] Next, regarding the operation method, the following description assumes that the insulating operating rod 12 having the connection structure 10 involved in the embodiment is used to operate the front end tool 14 for the indirect live wire connected to the front end of the insulating operating rod 12 in order to form an overhead power distribution line bypass circuit.

[0287] First, as shown in Figures 10 and 11, in order to assemble the front end tool 14 for indirect live wire construction on the front end of the insulating operating rod 12, the operator connects the connecting part 24 (on the operating rod side) of the insulating operating rod 12 constituting the connecting structure 10 and the connecting part 32 (on the front end tool side) of the front end tool 14.

[0288] 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 distal tool 14 side (distal tool side) are aligned, and the first fixing protrusion (pin) 60 is aligned with the first groove portion 90A of the first fixing groove 90.

[0289] Next, move the operating rod 12 toward the front end tool 14 side, insert the first fixed protrusion (pin) 60 into the second groove portion 90B of the first fixed groove 90, and when it reaches the groove wall on the front end tool 14 side of the second groove portion 90B, rotate the operating rod 12 in the circumferential direction to move the first fixed protrusion (pin) 60 along the groove of the second groove portion 90B toward the third groove portion 90C.

[0290] When the connecting structure 10 reaches the notch of the third groove 90C, that is, reaches the end of the second groove 90B, the operating rod 12 is pulled back from the front tool 14 side to the hand side to fit the first fixing protrusion (pin) 60 into the third groove 90C.

[0291] Therefore, by rotating the first connecting member 50, the first connecting member 50 is moved in the length direction of the operating rod 12 due to the action of the external thread portion 48 of the first connecting member 50 and the internal thread portion 58 of the core member 44, so that it moves to a position where the first connecting member 50 presses the second connecting member 80, so that the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the front end tool side) of the front end tool 14 are firmly connected.

[0292] Next, regarding the unlocking of the connecting portion 24 (on the operating rod side) of the operating rod body 20 and the connecting portion 32 (on the front end tool side) of the tool portion (front end tool portion) 30 in the connecting structure 10, mainly based on Fig.11 To explain. At this time, the first connecting member 50 is rotated to release the meshing of the external thread portion 48 and the internal thread portion 58 and move it toward the hand side. Then, the connecting portion 24 (on the operating rod side) of the operating rod body 20 is moved toward the front end side (the first connecting member 50 is pressed toward the hand side by the second connecting member 80), so that the first fixing protrusion (pin) 60 constituting the fixing means 16 is disengaged from the third groove portion 90C, and the operating rod 12 is rotated to move the first fixing protrusion (pin) 60 along the second groove portion 90B. When the first groove portion 90A of the first fixing groove 90 is located, the operating rod 12 is moved toward the hand side to disengage the first fixing protrusion (pin) 60 from the first fixing groove 90, so that the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the front end tool side) of the front end tool 14 can be separated.

[0293] (Third Embodiment)

[0294] Next, regarding the connection structure of the third embodiment as a modification of the first embodiment, mainly based on FIGS. Fig.21 to explain.

[0295] In the description of the connection structure of the third embodiment as a modification of the first embodiment, Figures 1 to 9The same reference numerals are used to denote the common components and elements of the connection structure 10 of the first embodiment shown in the figure, and the description of the common components and elements will be omitted.

[0296] Hereinafter, the characteristic components and elements of the connection structure which is a modification of the first embodiment will be mainly described.

[0297] A connection structure 10 as a third embodiment of the present invention is a connection structure that connects an operation rod 12 constituting a rod body and a connection portion of a tip tool 14 constituting a connected portion connected to the operation rod 12 .

[0298] The operating rod 12 includes a long cylindrical operating rod body 20, a grip portion 22 attached to the rear end of the operating rod body 20, i.e., the front side of the hand, and a connecting portion 24 (on the operating rod side) formed at the front end side of the operating rod body 20, i.e., the area on the side to be attached to the front end tool 14.

[0299] The front end tool 14 such as the indirect live wire construction tool is composed of, for example, a stripper, pliers, a locking tool, etc. for stripping the insulating film of the overhead power distribution line in the live wire state.

[0300] The tip tool 14 includes a tool portion 30 that directly contacts the electric wire or the like, and a connecting portion 32 (on the tip tool side) that is formed in a region connecting the tool portion 30 and the operation rod 12 and constitutes a connected portion.

[0301] The connecting portion 24 on the operating rod 12 side as a rod body and the connecting portion 32 on the connected portion side are arranged concentrically with a center line extending in the axial direction of the rod body, and a convex portion is formed on one side and a concave portion is formed on the other side, and the convex portion and the concave portion are combined to connect.

[0302] In this embodiment, the core member 44 constituting a convex portion is formed in the connection portion 24 (on the operation rod side), and the rod body side connection portion mounting hole 94 constituting a concave portion is formed in the connection portion 32 (on the tool end side).

[0303] The core component 44 is a rod-shaped body with a roughly circular cross-section, and the rod body side connecting portion mounting hole 94 is an annular body with a roughly circular cross-section. They are arranged concentrically with a center line extending in the axial direction of the rod body. The core component 44 is combined with the rod body side connecting portion mounting hole 94 to connect the connecting portion 24 on the operating rod 12 side and the connecting portion 32 on the connected portion side.

[0304] The operation rod 12 is provided with a fixing means 16 constituting a separation preventing means for fixing the tip tool 14 and preventing the members connected by the connection structure from being separated, in a region on the side connected to the tip tool 14 .

[0305] Furthermore, in the area on the side where the operating rod 12 is connected to the front end tool 14, a restraining means 18 is provided to restrain the movement of the operating rod 12 and the front end tool 14 to prevent their connection from being disengaged and to prevent the parts connected by the connection structure from being separated, constituting a separation prevention means.

[0306] The connecting portion 24 of the operating rod 12 constituting the connecting portion of the rod body is composed of a first connecting portion 40 thinner than the operating rod main body 20 formed on the side connected to the operating rod main body 20, and a core member 44 in which a second connecting portion 42 thicker than the first connecting portion 40 is continuously arranged on the front end tool 14 side of the first connecting portion 40.

[0307] The core member 44 constituting the connection portion 24 (on the operation rod side) of the operation rod body 20 is connected to the operation rod body 20 via the operation rod mounting member (the (first) operation rod mounting member 26 and the fixing pins 26 a and 26 b ).

[0308] In this embodiment, if Fig.17 and 18 As shown in FIG. 1 , the (first) operation rod mounting member 26 and the core member 44 are fitted into the recessed portion 20 a provided on the front end side of the operation rod body 20 , and are fixed by the fixing pins 26 a and 26 b .

[0309] The first connection portion 40 of the core member 44 is inserted around the (first) operation rod mounting member 26 and fitted into the recessed portion 20 a provided at the front end of the operation rod body 20 , and is fixed to the operation rod body 20 .

[0310] In the present embodiment, the connection portion 24 (on the operation rod side) includes a core member 44 constituting the first connection portion 40 and the second connection portion 42 .

[0311] The core member 44 has a hollow cylindrical shape and is disposed around the operation rod mounting members (the (first) operation rod mounting member 26 and the (second) operation rod mounting member 28 ).

[0312] In the present embodiment, the core member 44 has a first connection portion 40 formed of a cylindrical portion thinner than the operation rod body 20 on the hand side and mounted on the operation rod body 20, and a second connection portion 42 formed of a thick cylindrical portion thicker than the first connection portion 40 on the hand side on the front end side.

[0313] The core member 44 has a hollow annular hollow portion 46 extending in the longitudinal direction.

[0314] The hollow portion 46 has a first hollow portion 46 a that is narrowed and elongated substantially in the center thereof, and a second hollow portion 46 b that is thicker and has a larger diameter than the first hollow portion 46 a is formed on the front end side of the first hollow portion 46 a .

[0315] Furthermore, the hollow portion 46 has a third hollow portion 46 c which is thicker and has a larger diameter than the first hollow portion 46 a , formed on the hand side of the first hollow portion 46 a .

[0316] The core member 44 is provided with an operation rod mounting member ((first) operation rod mounting member 26 ) for mounting to the operation rod body 20 in the third hollow portion 46 c of the hollow portion 46 .

[0317] The operation rod mounting member (the (first) operation rod mounting member 26 ) is fixed to the front end of the operation rod body 20 , and the third hollow portion 46 c of the core member 44 is fitted around the (first) operation rod mounting member 26 for mounting.

[0318] The (second) operating rod mounting member 28 is embedded in the hollow portion 46, and its hand side is located in the third hollow portion 46c. It is slidably embedded in the first hollow portion 46a relative to the front end side here, and then extends toward the front end side in the second hollow portion 46b relative to the front end side here and is connected to the columnar core member mounting portion 96.

[0319] In the present embodiment, the (second) operating rod mounting member 28 is a cylindrical rod body, the hand side of which has a head having a larger diameter than the first hollow portion 46a, and the front end of which has a rod-shaped body having a diameter substantially the same as that of the first hollow portion 46a. Therefore, the second hollow portion 46b is configured to have a hollow portion remaining between the (second) operating rod mounting member 28, and the third rebound member 98 can be embedded therein.

[0320] In this embodiment, the core member 44 is provided with a first fixing protrusion (pin) 60 constituting the fixing means 16 on the second connecting portion 42. In addition, a rebound member 70 constituting the restraining means 18 may be inserted around the first connecting portion 40.

[0321] The connection portion 24 (on the operation rod side) includes a core member 44 fixed to the center of the operation rod body 20 at the front end thereof, and a first connection member 50 is disposed around the core member 44 .

[0322] Furthermore, the core member 44 is not provided with a restraining means 18 formed of a rebound member 70 such as a coil spring which rebounds from the hand side of the operating rod 12 toward the front end tool 14 side on its hand side, but it can also be provided on the hand side of the core member 44.

[0323] The connection portion 24 (on the operation rod side) includes a third connection member 52 disposed on the first connection portion 40 side inside the hollow portion of the first connection member 50 .

[0324] The first connecting member 50 is an annular body with a circular cross section, and its front end side is fitted into the hand side of the second connecting member 80 inside the hollow portion.

[0325] The third connecting member 52 is an annular body with a circular cross section, fixed to the inner peripheral 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 front end of the hand side of the second connecting portion 84 of the second connecting member 80 .

[0326] The third connecting member 52 is an annular body formed so that the second connecting portion 42 of the core member 44 is inserted and inserted into the inner peripheral surface of the hollow portion side of the first connecting member 50. The third connecting member 52 is configured so that its front end side contacts the end edge of the hand side of the second connecting portion 84 of the second connecting member 80, contacts the end edge of the hand side of the inner peripheral surface of the hollow portion side of the first connecting member 50, and is interposed between the end edge of the hand side of the second connecting portion 84 of the second connecting member 80 and the end edge of the hand side of the inner peripheral surface of the hollow portion side of the first connecting member 50.

[0327] The fixing means 16 of the first connecting member 50 and the second connecting member 80 is composed of an external threaded portion 88 provided on the outer periphery of the second connecting member 80 in the area where the first connecting member 50 is inserted into the second connecting member 80 loaded with the first connecting member 50. On the other hand, the fixing means 16 of the first connecting member 50 is composed of an internal threaded portion 58 provided in the tube in the area where the second connecting member 80 is inserted.

[0328] The internal thread portion 58 of the fixing means 16 constituting the first connecting member 50 is threadedly connected to the external thread portion 88 of the fixing means 16 constituting the second connecting member 80. By rotating the first connecting member 50, it can be moved in the length direction of the operating rod 12 and can be stopped at a position suitable for pressing the second connecting member 80 by the third connecting member 52 arranged continuously with the first connecting member 50.

[0329] The linking portion 24 (on the operation rod side) is not provided with the repulsive member 70 constituting the restraining means 18 , but may be provided on the hand side of the core member 44 .

[0330] In the third embodiment, the second connection portion 42 of the first connection portion 40 is formed with a rebound member mounting portion 72 for stopping the front end side of a rebound member 70 (not shown) on the hand side of the region where the first connection member 50 is fitted.

[0331] Furthermore, the operating rod body 20 of the operating rod 12 has a repulsive member mounting portion 74 formed at its front end side on the side facing the outer surface on the hand side of the first connecting member 50 for stopping the rear end side of the repulsive member 70 (not shown).

[0332] The first connecting portion 40 is configured to form a moving space for the first connecting member 50 described later between the first connecting portion 40 and the operating rod body 20, and the second connecting portion 42 is provided with the first fixing protrusion (pin) 60, and is configured to allow the second connecting member 80 constituting the connecting portion 32 (on the front end tool side) to be inserted around it.

[0333] The first connecting member 50 is annular, and is inserted around the 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. Sometimes, it is configured to be rebounded toward the front end side by a rebound member 70 (not shown) inserted between the hand side of the first connecting member 50 and the front end side of the operating rod body 20.

[0334] The first fixing protrusion (pin) 60 is formed at the center of the coupling portion 24 (on the operation rod side) so as to extend in the radial direction.

[0335] The first fixing protrusion (pin) 60 is formed to be movable in the axial direction of the operating rod 12 relative to the tip tool 14 in accordance with the movement of the operating rod 12 , and is formed to be rotatable in the circumferential direction of the operating rod 12 .

[0336] The connecting portion 32 (on the tool end side) constitutes a mounted portion to be mounted on the operating rod 12 , and is provided with a second connecting member 80 formed so as to be able to connect to the connecting portion 24 on the operating rod 12 side.

[0337] The second connecting member 80 has a first fixing groove 90 formed in the area on the side connected to the operating rod 12 for stopping the first fixing protrusion (pin) 60 provided on the connecting portion 24 on the operating rod 12 side. The first fixing groove 90 is inserted with the first fixing protrusion (pin) 60, and constitutes the fixing means 16 for fixing the first fixing protrusion (pin) 60 when the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the front end tool side) are connected.

[0338] The first fixed groove 90 includes a first groove portion 90A opened on the side of the operating rod 12, a second groove portion 90B opened next to the first groove portion 90A, and a third groove portion 90C opened next to the second groove portion 90B. The first groove portion 90A extends in the longitudinal direction, the second groove portion 90B extends in the circumferential direction, and the third groove portion 90C extends in the longitudinal direction and forms a dead end.

[0339] The first fixing groove 90 is formed in an L-shape in a plan view, and is configured so that when the tip tool 14 is attached to the operating rod 12 , the first fixing protrusion (pin) 60 stops in the third groove portion 90C and does not move.

[0340] The first fixing groove 90 has a depth that allows the head of the first fixing protrusion (pin) 60 to be inserted to slightly protrude, and a width that allows the shaft of the first fixing protrusion (pin) 60 to be inserted to move.

[0341] The first fixing protrusion (pin) 60 is protruded in the radial direction of the first connecting member 50.

[0342] The first fixing groove 90 has a depth that allows the head of the embedded first fixing protrusion (pin) 60 to slightly protrude, and a width that allows the shaft of the embedded first fixing protrusion (pin) 60 to move.

[0343] The second connecting member 80 constitutes a mounted portion mounted on the (front end) tool part 30 and connected to the operating rod 12, and comprises a first connecting portion 82 as a front end tool mounting portion mounted on the (front end) tool part 30, and a second connecting portion 84 thicker than the first connecting portion 82 as the front end tool mounting portion.

[0344] The first connection portion 82 is fitted into the mounting portion of the (front end) tool portion 30 , and is fixed to the (front end) tool portion 30 by an appropriate fixing member (eg, a pin, etc.).

[0345] The second connection portion 84 constitutes a hollow core member mounting portion, and is formed with a rod body side connection portion mounting hole 94 into which the core member 44 is fitted.

[0346] The second connection portion 84 is provided with a columnar core member mounting portion 96 in the rod-side connection portion mounting hole 94 .

[0347] The columnar core member mounting portion 96 is inserted into the annular hollow portion 46 between the second connection portion 42 of the core member 44 and the (second) operation rod mounting member 28 , and is in contact with and connected to the front end side of the (second) operation rod mounting member 28 .

[0348] The (second) operation rod mounting member 28 is arranged in series with the columnar core member mounting portion 96 , and is mounted on the second connecting portion 42 of the core member 44 .

[0349] The columnar core member mounting portion 96 is configured to press against the hand side of the second connecting member 80, and a second rebound member 76 such as a coil spring is provided in the second hollow portion 46b between the hand 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, which is configured to rebound the columnar core member mounting portion 96 toward the hand side or the front end side.

[0350] As shown in FIGS. 16 and 17 , the columnar core member mounting portion 96 is fitted into the hollow portion 46 of the second coupling portion 42 and fixed to the (second) operation rod mounting member 28 by means of a retaining screw 28 a .

[0351] The first connecting member 50 is arranged on the operating rod 12 in a manner that allows it to move in the axial direction of the operating rod 12. When the front end tool 14 is mounted on the operating rod 12, it is fixed to the area on the operating rod 12 side of the second connecting member 80 to control the movement of the second connecting member 80 to prevent the connecting portion 24 (on the operating rod side) from detaching from the first fixing groove 90 of the second connecting member 80.

[0352] The first connecting member 50 includes a fixing means 16 for controlling the movement of the second connecting member 80 .

[0353] The first connecting member 50 is configured to cover the first fixing protrusion (pin) 60 constituting the fixing means 16 when the tip tool 14 is attached to the operating rod 12 , and to contain the second connecting portion 84 of the second connecting member 80 and the third connecting member 52 in its hollow portion.

[0354] The second connection portion 84 of the first connection member 50 and the second connection member 80 is configured so as to be screwed in the axial direction by the external thread portion 88 and the internal thread portion 58 constituting the fixing means 16 when the first connection member 50 is rotated.

[0355] In this embodiment, the first connecting member 50 has an internal thread portion 58 formed on the inner side of an area overlapping with the second connecting portion 84 of the second connecting member 80 , and the second connecting member 80 has an external thread portion 88 formed on the outer side of an area of ​​the second connecting portion 84 covered by the first connecting member 50 .

[0356] In the present embodiment, the operating rod body 20 of the operating rod 12 is a rod body with a roughly 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 roughly circular cross-section, the first connecting member 50 is an annular body with a roughly circular cross-section, the third connecting member 52 is an annular body with a roughly circular cross-section, and the second connecting member 80 is an annular body with a roughly circular cross-section.

[0357] The operating rod body 20 , the core member 44 , the first connecting member 50 , the third connecting member 52 , and the second connecting member 80 of the operating rod 12 are arranged concentrically with a center line extending in the axial direction of the rod body.

[0358] 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, and the second connecting member 80 is arranged around the front end side of the core member 44, and the end edge of the front end side of the third connecting member 52 and the end edge of the hand side of the second connecting member 80 are formed to be relative.

[0359] Next, regarding the operation method, the following description assumes that the insulating operating rod 12 having the connection structure 10 involved in the embodiment is used to operate the front end tool 14 for the indirect live wire connected to the front end of the insulating operating rod 12 in order to form an overhead power distribution line bypass circuit.

[0360] First, as shown in Figure 16 and Fig.17 As shown, in order to assemble the front end tool 14 for indirect live wire construction on the front end of the insulating operating rod 12, the operator connects the connecting part 24 (on the operating rod side) of the insulating operating rod 12 and the connecting part 32 (on the front end tool side) of the front end tool 14 that constitute the connecting structure 10.

[0361] 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 distal tool 14 side (distal tool side) are aligned, and the first fixing protrusion (pin) 60 is aligned with the first groove portion 90A of the first fixing groove 90.

[0362] Next, move the operating rod 12 toward the front end tool 14 side, insert the first fixed protrusion (pin) 60 into the second groove portion 90B of the first fixed groove 90, and when it reaches the groove wall on the front end tool 14 side of the second groove portion 90B, rotate the operating rod 12 in the circumferential direction to move the first fixed protrusion (pin) 60 along the groove of the second groove portion 90B toward the third groove portion 90C.

[0363] When the connecting structure 10 reaches the notch of the third groove 90C, that is, reaches the end of the second groove 90B, the operating rod 12 is pulled back from the front tool 14 side to the hand side to fit the first fixing protrusion (pin) 60 into the third groove 90C.

[0364] Therefore, by rotating the first connecting member 50, the first connecting member 50 is moved in the length direction of the operating rod 12 due to the action of the internal thread portion 58 of the first connecting member 50 and the external thread portion 88 of the second connecting member 80, so that it is moved to a position where the second connecting member 80 is pressed by the third connecting member 52, so that the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the front end tool side) of the front end tool 14 are firmly connected.

[0365] Next, regarding the unlocking of the connecting portion 24 (on the operating rod side) of the operating rod body 20 and the connecting portion 32 (on the front end tool side) of the tool portion (front end tool portion) 30 in the connecting structure 10, mainly based on Fig.17At this time, the first connecting member 50 is rotated to move toward the hand side, so that the connecting portion 24 (on the operating rod side) of the operating rod body 20 is moved toward the front end side, so that the first fixing protrusion (pin) 60 constituting the fixing means 16 is disengaged from the third groove portion 90C, and the operating rod 12 is rotated to move the first fixing protrusion (pin) 60 along the second groove portion 90B. When the first fixing groove 90 is located, the operating rod 12 is moved toward the hand side to disengage the first fixing protrusion (pin) 60 from the first fixing groove 90, so that the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the front end tool side) of the front end tool 14 can be separated.

[0366] (Fourth Embodiment)

[0367] Next, regarding the connection structure as the fourth embodiment, mainly based on Figures 22 to 33 to explain.

[0368] In addition, regarding Figures 1 to 9 The same reference numerals are used to denote the common components and elements of the connection structure 10 of the first embodiment shown in the figure, and the description of the common components and elements will be omitted.

[0369] Hereinafter, the characteristic components and elements of the connection structure of the fourth embodiment will be mainly described.

[0370] A connection structure 10 as a fourth embodiment of the present invention is a connection structure that connects an operation rod 12 constituting a rod body and a connection portion of a tip tool 14 constituting a connected portion connected to the operation rod 12 .

[0371] The operating rod 12 includes a long cylindrical operating rod body 20, a grip portion 22 attached to the rear end of the operating rod body 20, i.e., the front side of the hand, and a connecting portion 24 (on the operating rod side) formed at the front end side of the operating rod body 20, i.e., the area on the side to be attached to the front end tool 14.

[0372] The front end tool 14 such as the indirect live wire construction tool is composed of, for example, a stripper, pliers, a locking tool, etc. for stripping the insulating film of the overhead power distribution line in the live wire state.

[0373] The tip tool 14 includes a tool portion 30 that directly contacts the electric wire or the like, and a connecting portion 32 (on the tip tool side) that is formed in a region connecting the tool portion 30 and the operation rod 12 and constitutes a connected portion.

[0374] The connecting portion 24 on the operating rod 12 side as a rod body and the connecting portion 32 on the connected portion side are arranged concentrically with a center line extending in the axial direction of the rod body, and a convex portion is formed on one side and a concave portion is formed on the other side, and the convex portion and the concave portion are combined to connect.

[0375] In the present embodiment, the core member 44 constituting the convex portion is formed in the connection portion 24 , and the rod body side connection portion attachment hole 94 constituting the concave portion is formed in the connection portion 32 .

[0376] The core component 44 is a rod-shaped body with a roughly circular cross-section, and the rod body side connecting portion mounting hole 94 is an annular body with a roughly circular cross-section. They are arranged concentrically with a center line extending in the axial direction of the rod body. The core component 44 is combined with the rod body side connecting portion mounting hole 94 to connect the connecting portion 24 on the operating rod 12 side and the connecting portion 32 on the connected portion side.

[0377] The operation rod 12 is provided with a fixing means 16 constituting a separation preventing means for fixing the tip tool 14 and preventing the members connected by the connection structure from being separated, in a region on the side connected to the tip tool 14 .

[0378] Furthermore, in the area on the side where the operating rod 12 is connected to the front end tool 14, a restraining means 18 is provided to restrain the movement of the operating rod 12 and the front end tool 14 to prevent their connection from being disengaged and to prevent the parts connected by the connection structure from being separated, constituting a separation prevention means.

[0379] The connecting portion 24 of the operating rod 12 constituting the connecting portion of the rod body is composed of a first connecting portion 40 thinner than the operating rod main body 20 formed on the side connected to the operating rod main body 20, and a core member 44 in which a second connecting portion 42 thicker than the first connecting portion 40 is continuously arranged on the front end tool 14 side of the first connecting portion 40.

[0380] The core member 44 constituting the connection portion 24 (on the operation rod side) of the operation rod body 20 is connected to the operation rod body 20 via the operation rod mounting member (the (first) operation rod mounting member 26 and the fixing pins 26 a and 26 b ).

[0381] The (first) operation rod mounting member 26 is a bottomed annular body, and is configured to be fitted into the recessed portion 20 a of the operation rod body 20 and directly connected by appropriate fixing means, such as fixing pins 26 a and 26 b .

[0382] The connection portion 24 (on the operation rod side) includes a core member 44 constituting the first connection portion 40 and the second connection portion 42 .

[0383] The core member 44 is fitted into a mounting hole 26d bored at the center of the operation rod mounting member (the (first) operation rod mounting member 26), and is fastened by the fastening screw 26c.

[0384] In the present embodiment, the (first) operating rod mounting member 26 is connected to the (first) operating rod mounting member 26 by inserting a connecting screw 26c for connecting the (first) operating rod mounting member 26 and the core member 44 from its hand side and tightening and fixing it to the hand side of the core member 44 by the connecting screw 26c.

[0385] The core member 44 is attached to the operation rod body 20 via the (first) operation rod attachment member 26 .

[0386] The linking portion 24 (on the operation rod side) is provided with a repulsive member 70 constituting the restraining means 18 .

[0387] In the present embodiment, the core member 44 is provided with a restraining means 18 formed of a repelling member 70 such as a coil spring, which is configured to repel the operation rod 12 from the hand side toward the tip tool 14 side, around the first connecting portion 40 .

[0388] In the present embodiment, the core member 44 has a first connection portion 40 formed of a cylindrical portion thinner than the operation rod body 20 on the hand side and mounted on the operation rod body 20, and a second connection portion 42 formed of a thick cylindrical portion thicker than the first connection portion 40 on the hand side on the front end side.

[0389] In this embodiment, if Fig.28 As shown in FIG. 1 , the core member 44 forms the first connecting portion 40 and the second connecting portion 42 as separate members, and they are appropriately connected by a pin 44 a.

[0390] The core member 44 has a first fixing protrusion (pin) 60 constituting the fixing means 16 mounted on the second connecting portion 42 on the front end side, and a repulsive member 70 constituting the restraining means 18 is inserted around the first connecting portion 40 on the hand side.

[0391] Furthermore, in the present embodiment, the core member 44 has a second fixing groove 92 formed in the second connecting portion 42 for guiding and fixing a second fixing protrusion (plunger) 62 described later in the longitudinal direction and radial direction of the operation rod 12 .

[0392] The connecting portion 24 (on the operation rod side) is provided with a first connecting member 50 .

[0393] The first connection member 50 is an annular body with a circular cross section, and the second connection portion 42 of the first connection portion 40 is fitted into the front end side of the first connection member 50 inside the hollow portion.

[0394] In the present embodiment, the connection portion 24 (on the operation rod side) includes a core member 44 fixed to the center of the operation rod body 20 at the front end thereof, and a first connection member 50 is disposed around the core member 44 .

[0395] The first coupling portion 40 is formed with a rebound member mounting portion 72 for stopping the front end side of the rebound member 70 on the hand side of the region where the first coupling member 50 is inserted.

[0396] Furthermore, the operating rod body 20 of the operating rod 12 has a repulsive member mounting portion 74 formed at its front end side on the side facing the outer surface on the hand side of the first connecting member 50 for stopping the rear end side of the repulsive member 70 .

[0397] The first connecting member 50 is spanned between the rebound member mounting portion 72 and the rebound member mounting portion 74 in a manner of surrounding the rebound member 70 of the core member 44 inserted in the first connecting portion 40, and its front end side is mounted on the second connecting portion 42 in a manner of surrounding the outer peripheral surface of the second connecting portion 42.

[0398] The repulsive member 70 constituting the restraining means 18 is configured to bias the first coupling member 50 toward the second coupling member 80 of the second coupling portion 42 constituting the coupled portion via the repulsive member mounting portion 72 when the tip tool 14 is mounted to the operating rod 12 .

[0399] The connecting portion on the rod body side and the connecting portion on the connected portion side are constructed such that a first fixing protrusion 60 is formed on one side as a fixing means 16 constituting a protrusion, and a first fixing groove 90 is formed on the other side as a fixing means 16 constituting a recess, and the protrusion and recess are combined for connection.

[0400] The fixing means 16 is composed of a first fixing protrusion (pin) 60 formed at the connecting portion on the rod body side and constituting a separation prevention means.

[0401] and / or,

[0402] The fixing means 16 is composed of a second fixing protrusion (plunger) 62 formed on the first connecting member 50 on the rod body side and constituting a separation preventing means.

[0403] The fixing means formed in the second coupling member 80 or the fixing means formed in the core member 44 is composed of a first fixing groove 90 formed at a corresponding position in the core member 44 and / or the second coupling member 80 and serving as a zigzag fixing groove constituting a separation preventing means.

[0404] The first connection portion 40 of the core member 44 is configured to form a movement space for a first connection member 50 described later between the first connection portion 40 and the operation rod body 20 .

[0405] The second connection portion 42 of the core member 44 is provided with the first fixing protrusion (pin) 60 at the front end side.

[0406] Furthermore, the second connection portion 42 of the core member 44 is formed with a second fixing groove 92 for guiding a second fixing protrusion (plunger) 62 to be described later.

[0407] The first fixing protrusion (pin) 60 is formed in the second connection portion 42 of the connection portion 24 (on the operation rod side) so as to extend in the radial direction.

[0408] The first fixing projection (pin) 60 is formed to be movable in the axial direction of the operating rod 12 relative to the tip tool 14 as the operating rod 12 moves, and is formed to be rotatable in the circumferential direction of the operating rod 12 as the operating rod 12 rotates.

[0409] The second fixed groove 92 includes a first groove portion 92A opened on the side of the operation rod 12, a second groove portion 92B opened next to the first groove portion 92A, and a third groove portion 92C opened next to the second groove portion 92B. The first groove portion 92A extends in the longitudinal direction, the second groove portion 92B extends in the circumferential direction, and the third groove portion 92C extends in the longitudinal direction and forms a dead end.

[0410] The second fixing groove 92 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 and the first connecting member 50 is rotated, the second fixing protrusion (plunger) 62 hits the third groove 92C, thereby preventing the first connecting member 50 from moving.

[0411] The second fixing groove 92 has a depth that allows the head of the second fixing protrusion (plunger) 62 to be inserted to slightly protrude, and a width that allows the shaft of the second fixing protrusion (plunger) 62 to be movable.

[0412] The second fixing protrusion (plunger) 62 is as follows Fig.24 As shown in FIG. 1 , it includes a cylindrical main body 62a, a biasing body 62b such as a spring loaded in the cylinder of the cylindrical main body 62a, and a spherical protrusion 62c whose head protrudes beyond the lower end of the cylindrical main body 62a due to the biasing body 62b.

[0413] The second fixed protrusion (plunger) 62 is protrudingly provided in the radial direction of the first connecting member 50, and the second fixed groove 92 has a recessed portion 92a of a depth in which the protrusion 62c of the embedded second fixed protrusion (plunger) 62 is slightly embedded, and a moving path 92b on a plane having a cylindrical body 62a of the embedded second fixed protrusion (plunger) 62 and a width in which the protrusion 62c can move. The second fixed protrusion (plunger) 62 is configured to move on the moving path 92b in the groove of the second fixed groove 92 and to be embedded in the recessed recessed portion 92a to control the movement of the first connecting member 50. The second fixed groove 92 is as shown in FIG. Fig.24 As shown in FIG. 8 , the recessed portion 92 a is provided in the second groove portion 92B and the third groove portion 92C.

[0414] The first connecting member 50 is annular and nested around the roughly cylindrical core member 44. It is configured to be movable in the length direction of the core member 44 and the operating rod body 20, and is configured to be rebounded toward the front end side by a rebound member 70 inserted between the hand side of the first connecting member 50 and the front end side of the operating rod body 20.

[0415] The first coupling member 50 has a hole 50 a formed at the front end thereof for fixing the second fixing protrusion (plunger) 62 . The second fixing protrusion (plunger) 62 constituting the fixing means 16 is fitted and fixed in the hole 50 a .

[0416] The connecting portion 32 (on the tool end side) constitutes a mounted portion to be mounted on the operating rod 12 , and is provided with a second connecting member 80 formed so as to be able to connect to the connecting portion 24 on the operating rod 12 side.

[0417] The second connecting member 80 has a first fixing groove 90 formed in the area on the side connected to the operating rod 12 for stopping the first fixing protrusion (pin) 60 provided on the connecting portion 24 on the operating rod 12 side. The first fixing groove 90 is inserted with the first fixing protrusion (pin) 60, and constitutes the fixing means 16 for fixing the first fixing protrusion (pin) 60 when the connecting portion 24 (on the operating rod side) and the connecting portion 32 (on the front end tool side) are connected.

[0418] The first fixed groove 90 includes a first groove portion 90A opened on the side of the operating rod 12, a second groove portion 90B opened next to the first groove portion 90A, and a third groove portion 90C opened next to the second groove portion 90B. The first groove portion 90A extends in the longitudinal direction, the second groove portion 90B extends in the circumferential direction, and the third groove portion 90C extends in the longitudinal direction and forms a dead end.

[0419] The first fixing groove 90 is formed in an L-shape in a plan view, and is configured so that when the tip tool 14 is attached to the operating rod 12 , the first fixing protrusion (pin) 60 stops in the third groove portion 90C and does not move.

[0420] The first fixing groove 90 has a depth that allows the head of the first fixing protrusion (pin) 60 to be inserted to slightly protrude, and a width that allows the shaft of the first fixing protrusion (pin) 60 to be inserted to move.

[0421] The first fixing protrusion (pin) 60 is protruded in the radial direction of the second connecting portion 42 of the core member 44, and the first fixing groove 90 has a depth that allows the head of the embedded first fixing protrusion (pin) 60 to slightly protrude, and a width that allows the shaft of the embedded first fixing protrusion (pin) 60 to move. The first fixing protrusion (pin) 60 is configured to move in the groove of the first fixing groove 90 to control the movement of the operating rod 12 and the first connecting portion 40.

[0422] The second connecting member 80 constitutes a mounted portion mounted on the (front end) tool part 30 and connected to the operating rod 12, and comprises a first connecting portion 82 as a front end tool mounting portion mounted on the (front end) tool part 30, and a second connecting portion 84 thicker than the first connecting portion 82 as the front end tool mounting portion.

[0423] The first connection portion 82 is fitted into a mounting portion of the (front end) tool portion 30 , and is fixed to the (front end) tool portion 30 by an appropriate fixing member (eg, a pin, etc.).

[0424] The second connection portion 84 constitutes a hollow core member mounting portion, and is formed with a rod body side connection portion mounting hole 94 into which the core member 44 is fitted.

[0425] Furthermore, the first fixing groove 90 is formed following the opening edge of the rod-side connecting portion mounting hole 94 .

[0426] The first connecting member 50 is arranged on the side of the operating rod 12 in a manner that allows it to move in the axial direction of the operating rod 12. When the front end tool 14 is mounted on the operating rod 12, it is fixed to the area on the side of the operating rod 12 of the second connecting member 80 to control the movement of the second connecting member 80 so as to prevent the connecting portion 24 (on the operating rod side) from detaching from the first fixing groove 90 of the second connecting member 80.

[0427] 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. The 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 protrusion (plunger) 62.

[0428] In this embodiment, the operating rod body 20 of the operating rod 12 is a rod body with a roughly 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 roughly circular cross section, the first connecting member 50 is a roughly circular ring body with a roughly circular cross section, and the second connecting member 80 is a roughly circular ring body with a roughly circular cross section.

[0429] The operating rod body 20 , the core member 44 , the first connecting member 50 , and the second connecting member 80 of the operating rod 12 are arranged concentrically with a center line extending in the axial direction of the rod body.

[0430] The first connecting member 50 is disposed around the second connecting portion 42 of the core member 44, and the second connecting member 80 is disposed around the front end side of the core member 44. The front end side edge of the first connecting member 50 and the hand side edge of the second connecting member 80 are formed to face each other.

[0431] Next, regarding the operating method, the following description assumes that the insulating operating rod 12 having the connection structure 10 involved in the fourth embodiment is used to operate the front end tool 14 for the indirect live wire connected to the front end of the insulating operating rod 12 in order to form an overhead distribution line bypass circuit.

[0432] First, if Fig.32 As shown, in order to assemble the front end tool 14 for indirect fire line construction on the front end of the operating rod 12, the operator connects the connecting part 24 (on the operating rod side) of the operating rod 12 constituting the connecting structure 10 and the connecting part 32 (on the front end tool side) of the front end tool 14.

[0433] 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 protrusion (pin) 60 is aligned with the first groove portion 90A of the first fixing groove 90 .

[0434] Next, move the operating rod 12 toward the front end tool 14 side, insert the first fixed protrusion (pin) 60 into the second groove portion 90B of the first fixed groove 90, and when it reaches the groove wall on the front end tool 14 side of the second groove portion 90B, rotate the operating rod 12 in the circumferential direction to move the first fixed protrusion (pin) 60 along the groove of the second groove portion 90B toward the third groove portion 90C.

[0435] When the connecting structure 10 reaches the notch of the third groove 90C, that is, reaches the end of the second groove 90B, the operating rod 12 is pulled back from the front tool 14 side to the hand side to fit the first fixing protrusion (pin) 60 into the third groove 90C.

[0436] When the first connecting member 50 is fixed to the second connecting portion 42, as shown in FIG. Fig.32 As shown in (B), the first connecting member 50 moves in the length direction of the operating rod 12 due to the action of the second fixing protrusion (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 moves to a position where the first connecting member 50 presses the second connecting member 80, so that the first connecting member 50 and the second connecting portion 42 are connected, so that the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the front end tool side) of the front end tool 14 are firmly connected.

[0437] In the present embodiment, the axis of the core member 44 is aligned with the axis of the second connection portion 42 , and the second fixing protrusion (plunger) 62 is aligned with the first groove portion 92A of the second fixing groove 92 .

[0438] Next, the first connecting member 50 is moved toward the front end tool 14 side, and the second fixing protrusion (plunger) 62 is inserted into the second groove portion 92B of the second fixing groove 92. When it reaches the groove wall on the front end tool 14 side of the second fixing groove 92, the first connecting member 50 is rotated in the circumferential direction to make the second fixing protrusion (plunger) 62 move along the groove of the second groove portion 92B toward the third groove portion 92C.

[0439] When the second fixing protrusion (plunger) 62 reaches the notch of the third groove 92C, that is, reaches the end of the second groove 92B, the second fixing protrusion (plunger) 62 is fitted into the third groove 92C.

[0440] In this way, by rotating the first connecting member 50, the first connecting member 50 is moved to a position pressing the second connecting member 80 due to the action of the second fixing protrusion (plunger) 62 of the first connecting member 50 and the second fixing groove 92 of the second connecting portion 42, so that the first connecting member 50 is connected to the second connecting portion 42 of the core member 44.

[0441] Regarding the unlocking of the connection part 24 (on the operation rod side) of the operation rod body 20 and the connection part 32 (on the front end tool side) of the tool part (front end tool part) in the connection structure 10, it is mainly based on Fig.33 The first connecting member 50 is rotated to move it to the position of the second groove 92B and is temporarily fixed. Then, the connecting portion 24 (on the operating rod side) of the operating rod body 20 is moved toward the front end side, and the second connecting member 80 is pressed toward the hand side as the first connecting member 50 moves, so that the first fixing protrusion (pin) 60 constituting the fixing means 16 is disengaged from the third groove 90C, and the operating rod 12 is rotated to move the first fixing protrusion (pin) 60 along the second groove 90B. When it is located in the first fixing groove 90, the operating rod 12 is moved toward the hand side to disengage the first fixing protrusion (pin) 60 from the first fixing groove 90, so that the connecting portion 24 (on the operating rod side) of the operating rod 12 and the connecting portion 32 (on the front end tool side) of the front end tool 14 can be separated.

[0442] (Modifications of the first to third embodiments)

[0443] The following is based on Figure 36 to Figure 38 , modifications of the first to third embodiments are described.

[0444] In the present modification, the connection structure 10 is formed at a position close to the hand side of the rod body, rather than at a position close to the tip tool 14 having the connected portion.

[0445] The connection structure 10 of the modified example is a structure that connects the hand side rod body and the front end side rod body of the rod body divided into two, and is formed by connecting the first operating rod body 12A connected to the front end tool 14 constituting the operating rod 12 and the second operating rod body 12B constituting the hand side operating rod 12.

[0446] The first operation rod body 12A constitutes a connecting portion, and a connected portion is formed at a front end side thereof, and the second operation rod body 12B constitutes a rod body, and a connecting portion is formed at a rear end thereof.

[0447] In the modification of the first embodiment, the operation stick 12 includes a long cylindrical operation stick body 20 constituting a first operation stick body 12A, and a grip 22 attached to the rear end of the operation stick body 20 , that is, the front side of the hand, constituting a second operation stick body 12B.

[0448] The operation rod body 20 has the tip tool 14 attached to its tip side, and has a connecting portion 24 (on the operation rod side) constituting a connected portion in a region on its rear side.

[0449] As mentioned above, although embodiment of this invention is disclosed in the said description, this invention is not limited to this.

[0450] That is, various changes can be made to the above-described embodiments regarding the mechanism, shape, material, number, position, or arrangement without departing from the technical concept and purpose of the present invention, and these are all included in the present invention.

[0451] In the embodiment, the connecting portion 24 on the operating rod 12 side of the rod body and the connecting portion 32 on the connected portion side are formed to be arranged concentrically with a center line extending in the axial direction of the rod body as a combination, and a convex portion is formed on one side of the connecting portion 24, and a concave portion is formed on the other side of the connecting portion 32, but it is also possible to form a concave portion, such as a rod body side connecting portion mounting hole 94, in the connecting portion 24 (on the operating rod side), and form a convex portion, such as a core member 44, in the connecting portion 32 (on the front end tool side).

[0452] Industrial Applicability

[0453] The connecting structure involved in the utility model is widely used in the connecting structure of rod-shaped bodies.

[0454] Description of Reference Numerals

[0455] 10 Joint structure

[0456] 12 Operation stick

[0457] 12A First operating rod body

[0458] 12B Second operating rod body

[0459] 14 Front-end Tools

[0460] 16 Fixation

[0461] 18 means of suppression

[0462] 20 Operating rod body

[0463] 20a Depression

[0464] 22. Grip

[0465] 24 (Operation rod side) connection part

[0466] 26 (First) Operating rod mounting member

[0467] 26a Fixing pin

[0468] 26b Fixing pin

[0469] 26c Connecting screw

[0470] 26d Mounting hole

[0471] 28 (Second) Operating rod mounting member

[0472] 28a Anti-drop screw

[0473] 30 Tool Department (Front-end Tool Department)

[0474] 32 (Front end tool side) Connecting portion

[0475] 32a Depression

[0476] 40 First connection part

[0477] 42 Second connection

[0478] 42a Depression

[0479] 44 Core Components

[0480] 46 Hollow

[0481] 46a First hollow part

[0482] 46b Second hollow part

[0483] 46c Third hollow part

[0484] 48 External thread

[0485] 50 First connecting member

[0486] 50a hole

[0487] 50E front face

[0488] 52 Third connecting member

[0489] 58 Internal thread

[0490] 60 first fixing protrusion (pin)

[0491] 62 Second fixed protrusion (plunger)

[0492] 62a cylindrical body

[0493] 62b Force-applying body

[0494] 62c convex part

[0495] 64 Fixtures

[0496] 70 Rebound Component

[0497] 72 Rebound member installation part

[0498] 74 Rebound member installation part

[0499] 76 Second rebound component

[0500] 80 Second connecting member

[0501] 80E rear end

[0502] 82 First connection

[0503] 84 Second connection

[0504] 88 External thread

[0505] 90 First fixing slot

[0506] 90A First slot

[0507] 90B Second groove

[0508] 90C Third groove

[0509] 92 Second fixing slot

[0510] 92a recess

[0511] 92b Mobile Road

[0512] 92A First slot

[0513] 92B Second groove

[0514] 92C Third slot

[0515] 94 Rod side connection part mounting hole

[0516] 96 Columnar core member mounting portion

[0517] 98 Third rebound component

Claims

1. A rod body connection structure capable of being in a locked state in which a rod body and a connected portion connected to the rod body are connected, characterized in that: have: A core member configured to connect the connecting portion on the rod body side and the connecting portion on the connected portion side; A first connecting member is disposed on the rod body side so as to be movable in the axial direction of the rod body in a region on the rod body side; and The second connecting member is disposed in the area on the connected portion side. The first connecting member is annular and is nested around the core member. The second connecting member is formed with a connecting portion mounting hole for the core member to be inserted into. The core member is assembled to the connecting portion mounting hole so that the connecting portion on the rod body side and the connecting portion on the connected portion side are connected. The first connecting member and the second connecting member are configured such that, in a locked state, the first connecting member is pressed toward the front end side by a first rebound member inserted between the hand side of the first connecting member and the front end side of the rod body. The core member has a shape that is inserted into a hollow portion provided in the second connecting portion of the second connecting member. A columnar core member mounting portion is provided in the connecting portion mounting hole. The columnar core member mounting portion is configured to abut against the hand side of the second connecting member. The core member has a hollow annular hollow portion extending in the longitudinal direction. The hollow portion has a first hollow portion that is narrowed and slender at the center, and a second hollow portion that is formed on the front end side of the first hollow portion. A second repulsive member is disposed in the second hollow portion between the hand side end of the columnar core member mounting portion and the boundary wall of the first hollow portion of the hollow portion. The second resilient member is configured to contract when locked to press the columnar core member mounting portion and the second connecting member toward the front end, and to be slightly contracted in the locked state, and to be further contracted when the second connecting member is pulled toward the front of the hand through a release action. The core member is provided with an external threaded portion constituting a fixing means at an outer peripheral portion of a region where the first connecting member is inserted, and the first connecting member is provided with an internal threaded portion constituting a fixing means in a tube in a region where the first connecting member is inserted, so that the fixing means of the first connecting member is threadedly connected to the fixing means of the core member, and the first connecting member can be moved by rotating it and can be stopped at a position suitable for pressing the second connecting member by the first connecting member. The rod body is provided with a fixing means constituting a separation preventing means for preventing the components connected by the connection structure from being separated in a region on the connected portion side connected to the rod body. The second connecting member has a fixing means for stopping the fixing means on the rod body side in a region on the connected portion side connected to the rod body. The first connecting member is formed so that when the connected portion is connected to the rod body, it is fixed to the first connecting member side area of ​​the second connecting member by the fixing means, and the movement of the second connecting member is controlled to prevent the fixing means on the rod body side from being separated from the fixing means formed on the second connecting member.

2. A rod body connection structure capable of being in a locked state in which the rod body and a connected portion connected to the rod body are connected, characterized in that: have: A core member configured to connect the connecting portion on the rod body side and the connecting portion on the connected portion side; A first connecting member is disposed on the rod body side so as to be movable in the axial direction of the rod body in a region on the rod body side; and The second connecting member is disposed in the area on the connected portion side. The first connecting member is annular and is nested around the core member. The second connecting member is formed with a connecting portion mounting hole for the core member to be inserted into. The core member is assembled to the connecting portion mounting hole so that the connecting portion on the rod body side and the connecting portion on the connected portion side are connected. The first connecting member and the second connecting member are configured so that the first connecting member and the second connecting member are pressed toward the front end by a first repulsive member constituting a restraining means inserted between the hand side of the first connecting member and the front end of the rod body. The core member has a shape that is inserted into a hollow portion provided in the second connecting portion of the second connecting member. A columnar core member mounting portion is provided in the connecting portion mounting hole. The columnar core member mounting portion is configured to abut against the hand side of the second connecting member. The core member has a hollow annular hollow portion extending in the longitudinal direction. The hollow portion has a first hollow portion that is narrowed and slender at the center, and a second hollow portion that is formed on the front end side of the first hollow portion. A second repulsive member constituting a restraining means is disposed in the second hollow portion between the hand side end of the columnar core member mounting portion and the boundary wall portion of the first hollow portion of the hollow portion. The second resilient member is configured to contract when locked to press the columnar core member mounting portion and the second connecting member toward the front end, and to be slightly contracted in the locked state, and to be further contracted when the second connecting member is pulled toward the front of the hand through a release action. The core member is provided with an external threaded portion constituting a fixing means at an outer peripheral portion of a region where the first connecting member is inserted, and the first connecting member is provided with an internal threaded portion constituting a fixing means in a tube in a region where the first connecting member is inserted, so that the fixing means of the first connecting member is threadedly connected to the fixing means of the core member, and the first connecting member can be moved by rotating it and can be stopped at a position suitable for pressing the second connecting member by the first connecting member. The connecting portion on the rod body 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 the concave portion are combined to connect. The first connecting member and the second connecting member are configured so that the connected first connecting member and the second connecting member are separated by moving in opposite directions. The rod body is provided with a restraining means constituting a separation preventing means for preventing the components connected by the connection structure from being separated. The restraining means is configured so that the convex portion and the concave portion meshing with each other do not separate when the first coupling member is pressed toward the second coupling member to perform the coupling.

Images