JP2014148220A - Insulation trolley system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an insulation trolley system which secures satisfactory electric connection between a connection device for power feeding connected to a terminal end of a power feeding path and a trolley wire.SOLUTION: A connection device 2 for power feeding includes: a conductor connection part 22 which is a cylindrical shape having insertion parts 22a on both ends in which a conductor 12 of a trolley wire 1 is inserted, and to which a power feeding line 3 is electrically connected; and a pressing member 23 which is arranged inside the conductor connection part 22 and which presses the conductor 12 inserted into the insertion parts 22a to the inner surface of the conductor connection part 22. The pressing member 23 has: a contact member 23a which directly abuts on the two conductors 12 and 12 inserted into the insertion parts 22a on both ends respectively; and an elastic member 23b arranged on the opposite side from the conductor 12 with respect to the contact member 23a and imparting an elastic force to the conductor 12 side to the contact member 23a. An insertion member 4 has an insertion piece 42 inserted into the insertion part 22a to which the conductor 12 is not inserted.

Description

  The present invention relates to an insulating trolley system.

  2. Description of the Related Art Conventionally, there is provided a power feeding connection device that connects ends of trolley wires to each other and feeds power to the trolley wires (see, for example, Patent Document 1). This power supply connection device includes an insulating connection device body, and plugs into which trolley wires are inserted are provided at both ends of the connection device body.

  In addition, a conductor connector for connecting the conductor of the trolley wire and the conductor of the feeder line is accommodated inside the connection device main body. The conductor connector is connected to the conductive conductor joint and the conductor joint. And a pressure spring and a guide plate, and a crimping terminal for connecting the feeder to the conductor joint.

  In this connection device for power feeding, by inserting the trolley wires into the both insertion portions of the connection device body, the conductors of both trolley wires are inserted between the lip portion of the conductor joint and the guide plate, respectively. Both conductors are clamped by the pressure of the pressure spring. Thereby, the conductors of both trolley wires are connected to each other.

Japanese Utility Model Publication No. 6-35760

  The connecting device for feeding shown in the above-mentioned Patent Document 1 assumes that the trolley wire is inserted from both sides, but when this connecting device for feeding is used at the end of the feeding path, it is inserted on one side. A trolley wire is inserted only in the section. In this case, since the guide plate obliquely contacts one side of the conductor of the trolley wire, there is a possibility that the electrical connection between the power feeding connecting device and the trolley wire becomes insufficient.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an insulating trolley system that ensures a good electrical connection between a feeding device connected to the end of a feeding path and a trolley wire. It is to provide.

  The insulating trolley system of the present invention includes a plurality of trolley wires with exposed end conductors, and a plurality of feeding connection devices that are electrically connected to the trolley wires and feed power to the trolley wires. By connecting between the trolley wires to be connected by a connecting device for feeding, a feeding path is formed. The insulating trolley system also includes an insertion member attached to a power feeding connecting device connected to the terminal end of the power feeding path. The power supply connection device has a cylindrical shape having an insertion part into which the conductor is inserted at both ends, a conductor connection part to which the power supply line is electrically connected, and a conductor that is disposed in the conductor connection part and is inserted into the insertion part. And a pressing member that presses the inner surface of the conductor connecting portion. The pressing member is a contact member that directly contacts two conductors inserted into the plugs at both ends, and is disposed on the opposite side of the conductor to the contact member and contacts the elastic force toward the conductor side. And an elastic member to be given to the member. And the insertion member has the insertion piece inserted in the insertion part into which a conductor is not inserted.

  By inserting the insertion piece of the insertion member into the insertion part where the conductor of the trolley wire is not inserted in the connection device for power supply connected to the terminal of the power supply path, the conductor of the trolley wire inserted into the insertion part As a result, it is possible to provide an insulating trolley system that secures a good electrical connection between the feeding device connected to the end of the feeding path and the trolley wire. There is an effect.

(A) is sectional drawing which is partially broken which shows the state which connected the trolley wire from one side with respect to the connection apparatus for electric power feeding used for the insulated trolley system of this embodiment, (b) is the connection apparatus for electric power feeding used for the same as the above Sectional drawing which fractures | ruptures partially and shows the state which connected the trolley wire and the insertion member with respect to (a), (c) is an enlarged view of an AA cross section. (A) is a perspective view which shows the state which connected the trolley wire from the one side with respect to the connection apparatus for electric power feeding used for the same as the above, (b) is the B section enlarged view. It is a perspective view before connecting an insertion member with respect to the connection apparatus for electric power feeding used for the same as the above. (A) is a perspective view after connecting an insertion member with respect to the connection apparatus for electric power feeding used for the same as the above, (b) is the C section enlarged view.

  Below, embodiment of an insulation trolley system is described with reference to FIGS. In the following description, the arrow ab direction in FIG. 3 is defined as the front-rear direction, the arrow cd direction is the up-down direction, and the arrow ef direction is the left-right direction unless otherwise specified. Do.

  The insulated trolley system of this embodiment supplies electric power to mobile equipment such as a hoist and a crane, for example. A plurality of trolley wires 1 and the trolley wires 1 are electrically connected to the trolley wires 1. And a plurality of power supply connection devices 2 for supplying power. In this insulated trolley system, a power feeding path is formed by connecting adjacent trolley wires 1 with a power feeding connecting device 2.

  The trolley wire 1 includes an insulating sheath 11 and a conductor 12 as shown in FIGS. 2 (a), 3 and 4 (a). The insulating sheath 11 has a long shape that is long in the left-right direction and a U-shape when viewed from the side, and a groove 11a in which the conductor 12 is disposed is provided over the entire length. As shown in FIG. 1 (c), the conductor 12 is V-shaped in a side view, and V-shaped grooves 12a are formed at both ends in the vertical direction (left-right direction in FIG. 1 (c)). Each is provided. The conductor 12 is held in the groove 11a of the insulating sheath 11 with the front side (the lower side in FIG. 1C) exposed to the outside, and the current collector (see FIG. (Not shown) is slid on the exposed portion of the conductor 12 to supply power to the mobile device.

  As shown in FIGS. 1A to 1C, the power supply connection device 2 includes a connection device main body 21, a conductor connection portion 22, a pressing member 23, and a rivet 24.

  The connection device main body 21 is made of an insulating material (for example, synthetic resin), and has a long shape in the left-right direction and a side view as shown in FIGS. 2 (a), 3 and 4 (a). Is formed in a U-shape, and a groove 21a through which the trolley wire 1 is inserted is provided on the front side and over the entire length. In addition, a conductor connection portion 22, a pressing member 23, and a rivet 24 are accommodated inside the connection device main body 21. Furthermore, an insertion portion 21b into which the feeder 3 is inserted is provided on one end side in the left-right direction of the connection device main body 21 (the right side in FIG. 1A). Further, a fitting hole 21c is provided in the other end portion (left end portion in FIG. 1A) in the left-right direction of the connection device main body 21, and a fitting piece 51 of the mounting plate 5 described later is fitted. The connection device main body 21 is attached to the attachment plate 5 by being fitted into the hole 21c.

  The conductor connecting portion 22 is formed in a cylindrical shape that is long in the left-right direction using a conductive material (for example, copper), and plugs 22a into which the conductor 12 of the trolley wire 1 is inserted are provided at both ends in the left-right direction. It has been. Further, a crimp terminal 32 fixed to the conductor 31 of the feeder 3 is caulked and fixed by a rivet 24 on the rear side of the conductor connecting portion 22 (upper side in FIG. 1A). 31 and the conductor connection part 22 are electrically connected. Furthermore, an opening 22b is provided over the entire length on the front side of the conductor connection portion 22, and in the state where the conductor 12 is inserted into the insertion portion 22a, as shown in FIG. The opening edge of each fits into each groove 12 a of the conductor 12. In this state, the conductor 12 is elastically contacted with the conductor connecting portion 22 by an elastic force from an elastic member 23b described later, and the conductor 12 and the conductor connecting portion 22 are electrically connected. In this state, the front side of the conductor 12 (the lower side in FIG. 1C) is exposed to the outside.

  As shown in FIGS. 1A to 1C, the pressing member 23 includes a contact member 23a and an elastic member 23b. The contact member 23a has a rectangular plate shape that is long in the left-right direction, and both end portions in the left-right direction are bent to the rear surface side. Since each bending part of this contact member 23a becomes a guidance part when the conductor 12 is inserted in the insertion part 22a, it is preferable that it is a curved part which consists of a smooth curved surface. The elastic member 23b is a rectangular leaf spring that is long in the left-right direction, and has a V-shape that is inclined obliquely forward as it goes from the center to both ends in the left-right direction. The elastic member 23b is disposed on the side opposite to the conductor 12 (rear surface side) with respect to the contact member 23a, and gives elastic force to the front surface side (conductor 12 side) with respect to the contact member 23a.

  As shown in FIGS. 2 (a), 3 and 4 (a), the power feeding connection device 2 is mounted side by side in the vertical direction on the front surface of the mounting plate 5 formed in a rectangular plate shape that is long in the left-right direction. It is done. On both ends in the left-right direction of the mounting plate 5, there are a plurality of insertion holes 52 extending in the vertical direction through which mounting screws (not shown) for mounting the mounting plate 5 to attached portions (not shown) are inserted. (6 pieces in FIG. 2A) are provided (only one side is shown in FIG. 2A). In addition, a plurality (seven in FIG. 2A) of fitting pieces 51 formed by cutting and raising a part of the mounting plate 5 are provided inside the insertion hole 52 in the mounting plate 5. It has been. The power feeding connection device 2 is mounted on the mounting plate 5 by placing the power feeding connection device 2 on the front surface of the mounting plate 5 and fitting both fitting pieces 51 into the fitting holes 21c.

  Next, a procedure for connecting the trolley wire 1 to the power feeding connection device 2 will be described. When the conductor 12 of the trolley wire 1 is inserted into the insertion portion 22a provided in the conductor connection portion 22 of the power supply connection device 2, the tip end portion of the conductor 12 comes into contact with the bent portion of the contact member 23a. When 12 is inserted, the contact member 23a is pressed to the rear side against the elastic force of the elastic member 23b. In the state where the conductor 12 is inserted to a predetermined position, as shown in FIG. 1A, the contact member 23a is inclined obliquely in the front-rear direction (vertical direction in FIG. 1A). Against one side. That is, the power supply connection device 2 according to the present embodiment assumes that the trolley wire 1 is inserted from both sides in the left-right direction, and as shown in FIG. In a state in which the contact is made, the contact area between the conductor 12 and the contact member 23a becomes small, and the electrical connection between the power supply connection device 2 and the trolley wire 1 may be insufficient.

  In the power supply connection device 2 connected to the terminal end of the power supply path, since the trolley wire 1 is connected only from one side, it is necessary to suppress the contact of the contact member 23a with the conductor 12 of the trolley wire 1. Therefore, in this embodiment, the contact of the contact member 23a is suppressed by inserting an insertion piece 42 of the insertion member 4 described later into the insertion portion 22a into which the conductor 12 of the trolley wire 1 is not inserted. This will be specifically described below.

  The insertion member 4 has a main body 41 that is formed in a rectangular parallelepiped shape that is long in the left-right direction by an insulating material (for example, synthetic resin), and a conductor is provided on the distal end side (right side in FIG. 3) of the main body 41. An insertion piece 42 to be inserted into the insertion portion 22a of the connection portion 22 is integrally provided. The insertion piece 42 is set to be smaller in size in the vertical direction than the main body portion 41, and V-shaped grooves 42 a (only one side is shown in FIG. 3) are provided on both sides in the vertical direction. And in the state which inserted the insertion piece 42 of the insertion member 4 in the insertion part 22a of the conductor connection part 22, the opening edge of the opening part 22b of the conductor connection part 22 is each groove | channel 42a of the insertion piece 42, respectively. Fit.

  As shown in FIGS. 2 and 3, in a state where the insertion piece 42 of the insertion member 4 is not inserted into the insertion portion 22a on one side (the left side in FIG. 3) of the conductor connection portion 22, FIG. ), The contact member 23a is inclined obliquely in the front-rear direction and hits the conductor 12 in one piece. On the other hand, as shown in FIG. 4, when the insertion piece 42 of the insertion member 4 is inserted into the insertion portion 22a, as shown in FIG. The member 23a is pressed to the rear surface side (the upper side in FIG. 1B), so that the contact member 23a can be prevented from coming into contact with the conductor 12. As a result, it is possible to ensure a good electrical connection between the feeding connection device 2 connected to the end of the feeding path and the trolley wire 1 connected to the feeding connection device 2.

  According to the present embodiment, by inserting the insertion piece 42 of the insertion member 4 into the insertion portion 22a into which the conductor 12 of the trolley wire 1 is not inserted in the power supply connection device 2 connected to the end of the power supply path, It is possible to prevent the contact member 23a from coming into contact with the conductor 12 of the trolley wire 1 inserted into the insertion portion 22a. As a result, the contact area between the conductor 12 and the abutting member 23a can be increased, and as a result, an insulating trolley that ensures a good electrical connection between the power supply connection device 2 connected to the end of the power supply path and the trolley wire 1. A system can be provided.

  In the present embodiment, the case where the shape of the conductor 12 of the trolley wire 1 is V-shaped has been described as an example. However, the shape of the conductor 12 is not limited to the V-shape, for example, a flat plate shape. Alternatively, other shapes may be used.

DESCRIPTION OF SYMBOLS 1 Trolley wire 2 Feeding connection device 3 Feeding wire 4 Insertion member 12 Conductor 22 Conductor connection portion 22a Insertion portion 23 Press member 23a Contact member 23b Elastic member 42 Insertion piece

Claims (1)

A plurality of trolley wires with exposed end conductors, and a plurality of feeding connection devices that are electrically connected to the trolley wires and feed power to the trolley wires, between adjacent trolley wires Is an insulating trolley system that forms a power feeding path by connecting the power feeding connection device,
An insertion member attached to the power supply connection device connected to the end of the power supply path;
The power supply connecting device is a cylindrical shape having an insertion part into which both ends of the conductor are inserted, and a conductor connection part to which a power supply line is electrically connected, and is disposed in the conductor connection part. A pressing member that presses the inserted conductor against the inner surface of the conductor connecting portion;
The pressing member is a contact member that directly contacts two conductors inserted into the insertion portions at both ends, and is disposed on the opposite side of the conductor with respect to the contact member. An elastic member that imparts the elastic force of the contact member to the contact member,
The insulating trolley system, wherein the insertion member has an insertion piece to be inserted into the insertion portion into which the conductor is not inserted.

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