JPH0389801A - Insulated current collector for trolley - Google Patents

Abstract

PURPOSE:To provide an insulated collector for a trolley, which is easy to mount, by arranging counterbalances on the opposite sides of pivots and projected diagonally out of line of arms. CONSTITUTION:Two current collectors 10 and 10' are paired tandem with support members 9 and 9' between them. The paired collectors are mounted on pivots 2 and 2' so that they can rotate about a common collector support of a moving electric machine. Swinging arms 3 and 3' are connected on the pivots 2 and 2'. Counterbalances 1 and 1' are provided at a distance from, and opposite to, the arms 3 and 3', respectively projected diagonally.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an insulating trolley current collector, in particular to a current collector for horizontal installation.

[Prior Art] A conventional current collector for horizontal installation will be described with reference to the drawings. FIGS. 5(A), (B), and (C) are a plan view, a front view, and a bottom view showing the insulating trolley current collector, in which a concave brush holder holds a brush 5 that contacts a trolley wire (not shown). 6 is an arm 3 whose one end is pivotally connected to the swing support shaft 2
It is pivoted to the tip so that it can swing and swing.

The horizontally extending swinging support shaft 2 is bent at a right angle in the center and extends horizontally on the opposite side of the arm 3, and the counter balancer 1 is fixed to the tip, and the other end, which extends horizontally, has a support shaft. It is rotatably attached to a U-shaped support member 9 that clamps and fixes a collector support rod 4 fixed to a mobile electric machine extending perpendicularly to the motor. This support member 9
A pressing spring 8 is engaged between the upper part of the arm 3 and the tip of the arm 3, and is configured to swing and press the brush 5 held by a brush holder 6 at the tip of the arm 3 to a trolley wire (not shown). ing. Reference numeral 7 designates a lead wire connected to the brush 5, and is supported by one end of the support member 9 that supports the collector support rod 4, with the intermediate portion thereof hanging down.

In the case of a horizontal installation in which the current collector for an insulated trolley configured as described above collects current while contacting a trolley installed horizontally, the arm 3° of the current collector, the brush holder 6,
In order to cancel the weight of the brush 5 etc. in the gravitational direction, a counter balancer 1 is installed on the same line on the opposite side of the arm 3 across the swing support shaft 2. In this case, the current collector is a single type. It was limited to things.

This means that even if you want to use a tandem type (assembly of single types) that connects two sets of current collectors for stable current collection, the counterbalancers will extend in the opposite direction to the arm. Problems to be Solved by the Invention] As mentioned above, the current collector for insulated trolleys has been made into a single type. If it can only be used in ■1Iii! It is common to use a tandem type for applications that dislike liI, so if only a single type can be used, it is necessary to arrange two single types in parallel in a mobile electric machine. In this case, there are disadvantages in terms of cost and space. 6. If the load capacity of the mobile electric machine is large, usually multiple tandem type insulated trolley current collectors are arranged in parallel, but only a single type can be used. In this case, as mentioned in (2) above, there are disadvantages in terms of cost, space, and construction workability.

■For current collectors used in applications such as traversers that involve transfer, there is a risk that arcs may occur during transfer if the single type is used, causing damage to transfer parts such as guide caps.

There are other problems.

The present invention has been made in view of the above points, and an object of the present invention is to provide a current collector for an insulated trolley that significantly improves cost, space, construction workability, etc.

[Means for Solving the Problems] The present invention includes a support part, an arm supported by the support part so that the base can swing and swing, and a tip of the arm that can swing and swing. The trolley has a brush mounted on a brush holder provided as shown in FIG. In a current collector for an insulated trolley in which the electric support mechanism is attached to an electric mobile device, when the device is configured as a tandem type, this This is a current collector for an insulated trolley, characterized in that a counter balancer is protruded at an oblique position that is on the opposite side of the arm supported by the swinging support shaft and is not on the same line as the arm.

[Function] Therefore, since the counterbalancers are arranged at diagonal positions where they do not touch each other, it is also possible to use it as a tandem type current collector, which greatly improves cost, space, and construction workability. I can do it.

[Example] Hereinafter, the present invention will be described in detail based on the drawings. The same members as those in the conventional example shown in FIG. 5 will be described with the same reference numerals.

FIGS. 1(A), 1(B), and 1(C) are a plan view, a front view, and a bottom view, respectively, showing the configuration of a current collector for an insulated trolley for horizontal installation according to an embodiment of the present invention. A swinging support shaft 2 having a counter balancer 1 at one end has a support shaft portion 2a into which a horizontally extending U-shaped support member 9 fixed to a collector support rod 4 having an angular cross section is fitted, and an arm 3. The counterbalancer 1 is an arm that is bent at right angles at the center so as to be diagonally rearward on the opposite side across the swinging support shaft 2, and a supporting part 2b to which the counterbalancer 1 is attached. Although it is located on the opposite side of the swing support shaft 2 from the arm 3, it is configured to protrude at an oblique position away from the same line as the arm 3. One end of a lead wire 7 is connected to the brush 5 of the brush holder 6, and the intermediate portion of the lead wire 7 is supported with a sag at one end of a support member 9.

Next, FIG. 2 shows an example in which two single-type insulated trolley current collectors 10 and 10' configured in this manner are combined to form a tandem type. FIG. 2(A) is a plan view; FIG. 2(B) is a front view, and FIG. 2(C) is a bottom view. The left and right current collectors 10, 10' are oscillated around a common collector support rod 4 attached to a moving electrical machine (not shown) on the left and right through support members 9, 9' on a swinging support shaft 2°2.
′ are attached so that they can each rotate. An arm 3.3' is pivotably attached to the support shafts 2, 2',
Brush holders 6 and 6' each holding a brush 5 and 5' are pivotally attached to the tips thereof so as to be able to swing and swing, and between the tips of the arms 3 and 3' and the support members 9 and 9'. It is constructed by coil springs 8, 8' being strung together. Counter balancer 1°1' for left and right current collectors 10.10'
The arms 3 and 3' protrude diagonally on the opposite side from the swing support shafts 2 and 2', respectively (
(See Figures 2(A) and (C)).

Each can operate freely without any interference.

Further, the swinging support shaft 2 only needs to be bent in one place as before, and can be combined in tandem without being bulky in the width direction.

Next, a second embodiment of the multi-wire current collector will be described based on FIG. FIG. 3(A) is a plan view of the multi-wire current collector 10a, and FIG. 3(B) is a front view. In this example, the brush holder has three brushes, which are laid in parallel (not shown). This is to collect current from the three trolley wires.

That is, three brushes 5A are held in the brush holder 6A, and are attached to the tips of two arms 3A and 3B each formed into a link shape so as to be swingable and swingable. One end portions of these arms 3A, 3B are pivotally connected to a support member 9A rotatably fitted to a horizontally extending swing support shaft 2, respectively. The support member 9A is fixedly supported so as to sandwich an angular collector support rod 4 fixed to a mobile electric machine (not shown).

On both sides of the arms 3A and 3B, coiled springs 8A and 8B are respectively installed between the pivot shaft on the center side of the arm 3A and the pivot shaft on the outside of the arm 3B. Each is swung so as to be pressed against a trolley wire (not shown).

The swing support shaft 2 is bent at a right angle in the center so as to be diagonally rearward on the opposite side across the arm direction and the swing support shaft 2, as in the first embodiment shown in FIG. Support part 2
It is formed from b.

This multi-wire current collector 10a is formed so as to be balanced by attaching a counter balancer l to the end thereof. Also in this example, the lead wire 7 connected to the brush 5A of the brush holder 6A is supported by one end of the support member 9A with the intermediate portion sagging.

Next, the multi-wire current collectors 10a, 1 configured in this way
Figure 4 (A) shows an example in which 0a' is configured as a tandem type.
, (B). Also in this Figure 4 (
A) is a plan view, and (B) is a front view. Support members 9A and 9A' of the current collector 10a and loa' are held between a collector support rod 4 having an angular cross section and fixed to a moving electric machine (not shown). It will be fixed like this. This support member 9A.

Each swing support shaft 2.2' is rotatably fitted into the arm 3A'.

The central ends of 3B, 3A', and 3B' are pivotally connected so that they can swing. Arm 3A, 3B and Arm 3
A brush holder 6A holds brushes 5A and 5A' at the outer ends of A' and 3B'.

6A' are each pivotally mounted so that they can rotate and swing.

The swing support shaft 2.2' is a horizontal support shaft portion 2a.

2a', and support parts 2b and 2b' that are bent at right angles and protrude in an oblique direction, and each support part 2b,
A counter balancer 1, 1' is attached to one end of 2b'.

Therefore, in this example as well, the left and right current collectors 10.1
The left and right current collectors can each freely operate without any interference between the counter balancers l and 1' of 0', and it is possible to form them in a tandem type.

[Effect of the Invention J As explained above, the current collector for an insulated trolley of the present invention has a tandem type structure by protruding the counterbalancer in an oblique position away from the parallel plane in the opposite direction to the arm that does not interfere with the counterbalancer. This makes the installation space much more compact compared to conventional single-type devices installed side by side. In addition, since only one collector support rod is required to attach the current collecting position, construction costs are reduced and construction work becomes simpler.

[Brief explanation of drawings]

FIGS. 1(A), (B), and (C) are a plan view, a front view, and a bottom view showing a current collector for an insulated trolley according to an embodiment of the present invention; FIGS. 2(A), (B) , (C) are a plan view, a front view, and a bottom view when the current collector shown in FIG. 1 is configured as a tandem system, and FIGS. A plan view and a front view of a multi-wire current collector. 4(A) and (B) are a plan view and a side view when the multi-wire current collector shown in FIG. 3 is constructed as a tandem type, and FIGS. ) are a plan view, a front view, and a bottom view showing a conventional current collector for an insulated trolley. 1.1'... Counter balancer 2.2'... Oscillating support shaft 3.3', 3A, 3B, 3A'3B'...
・Arm 4...Collector support rod 5.5', 5A, 5A'...Brush 6.6', 6A, 6A'...Brush holder 7.7
'... Lead wire 8.8', 8A, 8B, 8A', 8B' ・
・Press spring

Claims (1)

[Claims] A support part, an arm whose base is supported by the support part so that it can swing and swing, and a brush that is provided at the tip of the arm so that it can swing and swing. It has a brush provided on the holder and a pressing spring provided between the support part and the arm so as to press the brush in the direction of the insulated trolley, and these current collection support mechanisms are used for electric mobile equipment. In the current collector for an insulated trolley that can be installed, when the device is configured as a tandem type, the oscillating support shaft that is rotatably fixed to the support part is the center, and the A current collector for an insulated trolley, characterized in that a counter balancer is protruded at an oblique position on the opposite side of the arm and off the same line as the arm.