JPH0578103U - Insulated trolley wire collection electronic shoe structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an insulated trolley wire current collector structure capable of traveling while keeping the current collector shoe part in flat contact with the trolley wire. A collector shoe portion 11 that travels in contact with a trolley wire and collects current from the trolley wire is supported so as to be vertically rotatable around a central portion thereof. A seat plate 19 is horizontally fixed below the portion 11 with a gap, and is vertically expandable and restorable at least near both ends of the gap between the current collector shoe portion 11 and the seat plate 19. The elastic members 20 having 20 are interposed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an insulated trolley wire current collecting shoe structure that is used as a current collecting mechanism in an automatic transfer hoist of a smart system.

[0002]

[Prior Art]

 FIG. 3 shows an example of a current collecting shoe structure that has been conventionally adopted as a current collecting mechanism in a smart system automatic transfer hoist or the like. Reference numeral 1 in the figure travels while contacting the trolley wire, The electric power collection shoe part which collects electric power is shown.

A current collector arm unit 2 is connected to the current collector shoe unit 1 to support the current collector shoe unit 1 in contact with the trolley wire. A vertical axis arm 3 is provided at one end of the current collecting arm section 2, and the lower center of the current collecting shoe section 1 is hinged to the upper end of the vertical axis arm 3. The current collecting shoe portion 1 is capable of rotating in the vertical direction centering on the hinge coupling portion 4 so as to follow the trolley wire.

[0004]

[Problems to be solved by the device]

 However, in the conventional current collecting shoe structure, the current collecting shoe portion 1 is hinged to the upper end of the vertical axis arm 3 of the current collecting arm portion 2 and is supported at only one point by the hinge coupling portion 4, so that traveling There is a problem in that once tilted inside, it is forced to continue traveling as it is, which causes uneven wear and shortens the life of the current collector shoe 1.

Further, when the current collecting shoe portion 1 is tilted, the contact area between the current collecting shoe portion 1 and the trolley wire, that is, the conductive area is reduced, which may cause an abnormality such as a spark.

The present invention has been made in view of the above circumstances, and provides an insulated trolley wire current collector structure capable of traveling while keeping the current collector shoe portion in flat contact with the trolley wire. The purpose is to.

[0007]

[Means for Solving the Problems]

 According to the present invention, a current collecting shoe portion that travels while contacting a trolley wire and collects current from the trolley wire is supported so as to be vertically rotatable around a central portion thereof. A seat plate is horizontally fixed to the lower part of the seat with a gap, and elastic at the end of the gap between the collector shoe and the seat plate is vertically expandable and elastic and has a restoring force. The interposition of a member was used as a means for solving the above problems.

[0008]

[Action]

 According to the present invention, when the current collecting shoe portion is tilted, among elastic members interposed in the gap between the current collecting shoe portion and the seat plate, the elastic member is on the side where the current collecting shoe portion is lowered. , And is contracted by being pressed by the current collecting shoe portion. Then, the restoring force of the elastic member urges the current collecting shoe portion upward to return to the original horizontal state. Therefore, the current collecting shoe can always contact the trolley wire flatly.

[0009]

【Example】

 An embodiment of an insulated trolley wire current collecting shoe structure according to the present invention will be described below with reference to FIGS. 1 and 2.

Reference numeral 11 in FIG. 1 is a current collecting shoe section. As shown in FIG. 2, the current collecting shoe portion 11 is composed of a conductor (copper) shoe 22 that is in contact with the trolley wire and transmits power, and an insulating portion 23 that supports and protects the shoe 22. . An electric cable 21 for transmitting power is connected to the shoe 22.

Further, reference numeral 12 in the drawing denotes a current collecting arm part for supporting the current collecting shoe part 11 in a state of being in contact with the trolley wire. The current collecting arm unit 12 has a vertical axis arm 13 installed vertically, a vertical arm 14 installed parallel to the vertical axis arm 13, and between the vertical axis arm 13 and the vertical arm 14. It has a link mechanism that is horizontally laid across a gap and has two horizontal arms 15 and 15 pivotally hinged to a vertical axis arm 13 and a vertical arm 14. . A coil spring 16 is attached between the two horizontal arms 15 to connect them obliquely.

The upper end of the vertical axis arm 13 of the current collecting arm portion 12 and the center of the lower portion of the current collecting shoe portion 11 are hinge-coupled to each other, so that the current collecting shoe portion 11 connects the hinge coupling portion 17 to each other. It is supported at the center so that it can rotate in the vertical direction.

A current collector fixing portion 18 is connected to the vertical arm 14 of the current collecting arm portion 12, and the vertical arm 14 is fixed.

Below the collector shoe 11, a seat plate 19 is horizontally fixed with a predetermined gap. The seat plate 19 is fixed to the vertical axis arm 13 of the current collecting arm unit 12, and its posture is kept horizontal.

In the gap between the current collector shoe portion 11 and the seat plate 19, springs which are vertically extensible and have a restoring force near both ends at substantially symmetrical positions with the vertical axis arm 13 interposed therebetween. (Elastic members) 20, 20 are interposed.

The operation and effect of the current collecting shoe structure of the present embodiment thus configured is as described below.

When the current collecting shoe 11 is in contact with the trolley wire and is running, when the current collecting shoe 11 is tilted, that is, when the current collecting shoe 11 is vertically rotated about the hinge coupling part 17 in one direction, the current collecting shoe is A spring (elastic member) 20 on the side where 11 is inclined downward is pressed between the current collecting shoe portion 11 and the seat plate 19 and contracts. Then, the restoring force of the spring (elastic member) 20 pushes the current collecting shoe portion 11 upward and returns it to the horizontal state again.

In this way, the current collecting shoe portion 11 immediately returns to the original horizontal state even if it is tilted, so that it can always come into contact with the trolley wire in a flat manner. Therefore, uneven wear can be eliminated and the life of the current collector shoe portion 11 can be extended, which is economically advantageous.

Further, since the trolley wire is always in contact with the trolley wire in a flat manner, a contact area between the current collecting shoe portion 11 and the trolley wire, that is, a conductive area is secured, and an abnormality such as a spark can be prevented. .

Further, when the current collecting shoe structure is applied to signal transmission or the like, the error bit error rate is significantly reduced and the quality of signal transmission can be improved.

When traveling, for example, when the trolley wire approaches a position that is not horizontal, the current collecting shoe portion 11 contacts the trolley wire and vertically moves upward or downward. Since the vertical axis arm 13 of the current collecting arm section 12 vertically moves together with the current collecting shoe section 11, the horizontal arms 15 and 15 vertically rotate about the hinge joint section with the vertical axis arm section 13. Then, the coil spring 16 provided between the horizontal arms 15 and 15 expands and contracts, and the restoring force of the coil spring 16 causes the horizontal arms 15 and 15 and the vertical axis arm 13 to return to their original postures. Therefore, the current collecting shoe portion 11 follows the trolley wire and can travel while always in contact with the trolley wire.

The insulated trolley wire current collecting shoe structure of the present invention is not limited to the above-mentioned embodiment, and various modifications can be made without departing from the scope of the present invention. is there.

For example, the elastic member interposed between the current collector shoe portion 11 and the seat plate 19 is not limited to the above-exemplified spring as long as it can be expanded and contracted in the vertical direction and has a restoring force. Alternatively, an elastic rubber body or an air spring may be used.

[0024]

[Effect of the device]

 As described above, according to the insulated trolley wire current collecting shoe structure of the present invention, even if the current collecting shoe portion is tilted during traveling, the current collecting shoe portion is immediately restored by the restoring force of the elastic member. Since it returns to the horizontal state and can always come into contact with the trolley wire in a flat manner, uneven wear is eliminated and the life of the collector shoe can be extended. Further, the contact area between the current collecting shoe portion and the trolley wire, that is, the conductive area is secured, and the occurrence of abnormalities such as sparks can be prevented.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of an insulated trolley wire current collecting shoe structure according to the present invention.

2 is a front sectional view showing a current collecting shoe portion in the current collecting shoe structure of FIG. 1. FIG.

FIG. 3 is a side sectional view showing an example of a conventional collector shoe structure.

[Explanation of symbols]

 11 current collecting shoe part 12 current collecting arm part 13 vertical axis arm 14 vertical arm 15 horizontal arm 16 coil spring 17 hinge coupling part 18 current collecting fixed part 19 seat plate 20 spring (elastic member) 21 electric cable 22 shoe 23 insulating part

Claims (1)

[Scope of utility model registration request] 1. A current collecting shoe portion, which travels in contact with a trolley wire and collects current from the trolley wire, is supported so as to be vertically rotatable around a central portion thereof. A seat plate is horizontally fixed below the shoe part with a gap between the shoe part and at least near both ends of the gap between the current collecting shoe part and the seat plate. An insulated trolley wire current collecting shoe structure characterized in that members are interposed.