JPS6323722B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a support device for a current collector that slides in contact with the inner peripheral surface of a duct type trolley wire.

[Conventional technology]

A duct-guided current collector device collects current by sliding the current collector on the inner circumferential surface of a duct-type trolley wire. It is configured to slide in contact with the inner peripheral surface of the trolley wire to collect current.

In addition, a rail-type trolley wire current collector known from Japanese Utility Model Publication No. 15762/1976 has an arm suspended from the lower end of a vertical pull rod held by a spring in a vertical spring box, and one end of this arm is attached to a pivot point. It is supported so that it can swing up and down, both sides of the arm are held down by springs, and the left and right rollers provided on these arms hold down the top and bottom surfaces of the movable lever, and a current collector is attached to the tip of the movable lever to collect current. It is composed of

[Problem that the invention seeks to solve]

In the conventional duct-guided current collector as described above, there is a gap between the running current collector and the duct-type trolley wire in the vertical and horizontal directions, depending on the manufacturing accuracy of the ducted trolley wire and the quality of the installation work and the installation work of the vehicle running track. If misalignment occurs, the current collector will not be able to make complete contact with the trolley wire, causing noise and radio interference. To prevent this, a coil spring is used to move the current collector freely relative to the trolley wire. However, this requires a large number of coil springs of various sizes and strengths to respond to the rocking movements in the vertical and horizontal directions as well as in the direction of travel.
There was a problem in that the support device was complicated and large, and it was fragile and unsuitable for a collector running at high speed.

Furthermore, in the rail-type trolley wire current collector described in the above-mentioned publication, when the collector moves up and down, the movable lever to which the collector is attached cannot immediately respond and respond, so the movable lever is supported by being sandwiched between the upper and lower rollers. Since the arm that is attached to the lever responds with a delay, not only does the collector not follow the trolley wire smoothly, but the movable lever is only held down by the left and right rollers on its top and bottom surfaces, making it unstable and unstable when moving. There was a problem that it could easily come off.

Therefore, the present invention provides a current collector support device for a duct type trolley wire, which allows the current collector to stably and smoothly follow the trolley wire in up, down, left, right, and traveling directions without making the support device complicated and large. It provides:

[Means for solving problems]

In order to solve the above problems, the current collector support device for a duct type trolley wire of the present invention includes a current collector 2 that slides in contact with the inner peripheral surface of a duct type trolley wire 1 having an arcuate cross section and an inverted gutter shape. The current collector support rod 3 is supported at the upper end of the current collector support rod 3, and the current collector support rod 3 is erected at the tips of two parallel movable arms 4, 4 extending at right angles to the trolley wire direction. Both ends of a common shaft 6 are installed between the rear parts of the movable arms 4, and two abacus-shaped slide rolls 5, 5 are loosely fitted onto the common shaft 6, and fixed guides 7, 7 extend parallel to the movable arms 4, 4. Protect the bottom plate 8 of the case 8
The upper and lower fixed guides 7, 7 sandwich the two abacus bead-shaped slide rolls from above and below, respectively, and are movable by a spring 9 whose one end is fixed to the protective case 8. Arms 4, 4 are held elastically in the vertical direction, and 1
a spring 1 whose end is fixed to the protective case 8;
0 and 11 elastically hold the movable arms 4 and 4 in the left and right direction, and the protective case 8 is held by the insulator 15.
It is attached to a traveling vehicle 16.

[Effect]

The collector 2 moves the movable arms 4, 4 in the vertical direction when the vehicle 16 moves and slides in contact with the reverse gutter-shaped inner peripheral surface of the duct type trolley wire 1 having an arcuate cross section. The trolley wire runs while elastically contacting the inner circumferential surface due to the elasticity of the spring 9 that is elastically held therein.

When the collector 2 travels along the trolley wire 1 in this way, if the collector 2 moves up and down in accordance with the vertical change in the installation state of the trolley wire 1, the abacus-shaped slide rolls 5, 5 Movable arms 4, 4 supported by a loosely fitted common shaft 6
The collector 2 follows and swings vertically about the common shaft 6 as a fulcrum, so that the collector 2 travels while freely following the movement in response to the vertical movement of the installation position of the trolley wire 1.

In addition, when the collector 2 moves in the left-right direction according to changes in the installation state of the trolley wire 1, the abacus-shaped slide rolls 5, 5 of the common shaft 6 supporting the movable arms 4, 4 move upward and downward. By sliding in the left-right direction in the groove between the fixed guides 7, 7, the current collector 2 freely follows the movement of the trolley wire installation position in the left-right direction.

In addition, if the collector 2 oscillates in the direction of the trolley wire while traveling along the trolley wire 1, the common shaft 6 loosely fitted in the abacus bead-shaped slide rolls 5 moves inside the slide rolls in the axial direction. By sliding freely on this common shaft 6
The movable arms 4, 4 supported by the movable arms 4 follow the trolley wire direction, and the current collector 2 follows freely.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a front view of a current collector support device for a duct type trolley wire according to the present invention, and FIG. 2 shows a plan view thereof.

Reference numeral 1 denotes a duct type trolley wire having an arcuate cross section and an inverted trough shape, and is supported by a trolley wire support column 14 . 13 is a trolley wire connection fitting.

Reference numeral 2 designates a current collector that slides in contact with the inverted trough-like inner peripheral surface of the duct type trolley wire 1 having an arcuate cross section, and 3 designates a current collector support rod fixed to the head of the current collector 2.

Reference numerals 4 and 4 designate two parallel movable arms extending perpendicularly to the trolley wire 1, with the base of the current collector support rod 3 attached to their tips, and the support rod 3 erected at right angles above. .

Reference numerals 5 and 5 designate two abacus-shaped slide rolls, which are loosely fitted into a common shaft 6 whose both ends are attached between the rear ends of the movable arms 4, 4 so that they can idle.

Reference numeral 7 denotes a fixed guide having a groove into which the abacus bead-shaped slide roll 5 is fitted and extending in a direction parallel to the movable arm 4;
As shown in the figure, it is attached to the upper surface of the bottom plate 8a of the protective case 8 and the lower surface of the top cover 8b, and sandwiches the slide roll 5 from above and below. 8b
A total of four fixed guides 7, 7, 7, 7 are also installed on the lower surface of the slider in two parallel manner to sandwich the two abacus bead-shaped slide rolls 5, 5 from above and below, respectively.

A spring 9 has one end attached to the protective case 8 and the other end attached to the movable arms 4, 4 to elastically hold the movable arms 4, 4 in the vertical direction. Reference numeral 10 denotes a spring that has one end attached to the protective case 8 and the other end attached to the reinforcing rod 12 bridging the movable arms 4, 4 to elastically hold it in the right direction, and 11 has one end attached to the protective case 8. The movable arms 4, 4 are connected to the common shaft 6 of the slide rolls 5, 5 by the springs 10, 11, and the other end is attached to the reinforcing rod 12 to elastically hold the springs in the left direction.
and the collector support rod 3, which elastically holds the collector 2 in the left and right direction.

Reference numeral 15 denotes an insulator for attaching the protective case 8 to the traveling vehicle 16.

In the duct type trolley wire collector support device of the present invention configured as described above, the duct type trolley wire 1 whose current collector 2 has an arcuate cross section as the vehicle 16 travels
When the trolley wire runs while sliding in contact with the inner circumferential surface of the trolley wire, the current collector 2 is moved against the inner circumferential surface of the trolley wire by the elasticity of the spring 9 that elastically holds the movable arms 4, 4 in the vertical direction. Runs while making elastic contact.

When the collector 2 moves up and down in accordance with the vertical change in the installation state of the trolley wire 1, the common shaft 6 supporting the movable arms 4, 4 loosely fits into the abacus-shaped slide rolls 5, 5. As a result, the movable arms 4, 4 follow and swing about the common shaft 6, and thereby the collector 2 travels while making a free follow-up movement in response to the vertical movement of the installation position of the trolley wire 1. It turns out.

Furthermore, when the collector 2 moves in the horizontal direction as shown in the figure in response to changes in the installation state of the trolley wire, the abacus-shaped slide rolls 5, 5 of the common shaft 6 supporting the movable arms 4, 4 are fixed in the upper and lower positions. By sliding in the groove between the guides 7, 7 in the left-right direction as shown in the figure, the current collector 2 can freely follow the movement of the trolley wire installation position in the left-right direction.

Furthermore, when the collector 2 moves along the trolley wire 1 and oscillates in the running direction of the trolley wire, the common shaft 6 loosely fitted in the abacus bead-shaped slide rolls 5, 5 moves freely in the axial direction. Since it can slide, the movable arms 4, 4 supported by this common shaft 6 also make a following movement in the axial direction of the trolley wire, and thereby the current collector 2 can also follow freely.

In this way, the collector 2 can freely and smoothly follow the changes in the installation state of the trolley wire 1 in any direction, up or down, left or right, or in the direction of travel.

〔Effect of the invention〕

In the current collector support device for a ducted trolley wire of the present invention configured as described above, the current collector 2 runs in contact with and slides on the inner circumferential surface of the ducted trolley wire 1 which is in the form of a reverse gutter and has an arcuate cross section. The abacus-shaped slide roll 5 of the common shaft 6 to which the movable arm 4 that supports the current collector 2 is attached can sometimes be resiliently contacted by a spring 9 to obtain a good electrical contact. Since the movable arm 4 is sandwiched between the fixed guides 7, 7 from both the upper and lower sides, it is possible to stably hold the movable arm 4.

When the collector 2 moves up and down in accordance with the vertical change in the installation state of the trolley wire 1, the movable arm 4 follows and swings up and down using the common shaft 6 as a fulcrum, and when the collector 2 moves in the horizontal direction, The abacus-shaped slide roll 5 slides between the upper and lower fixed guides 7, 7, so that it can follow the movement from side to side.The slide roll 5 is shaped like an abacus and has a narrow peripheral edge, so it slides with little frictional resistance. Moreover, when the collector 2 oscillates in the direction of the trolley wire, the common shaft 6 slides in the axial direction within the slide rolls 5, 5, so that it can follow the running direction.
varies up and down depending on changes in the installation status of trolley wire 1.
Since the trolley can freely follow both left and right directions, it not only always provides good electrical contact, but also reduces wear because there is no forced contact between the trolley wire and the current collector. becomes.

In addition, the number of component parts is small and the entire device is small and robust, making it ideal as a support device for current collectors of duct type trolley wires running at high speed.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of an embodiment of a current collector support device for a ducted trolley wire according to the present invention, and FIG. 2 is a partially cutaway plan view. 1: Ducted trolley wire, 2: Current collector, 3: Current collector support rod, 4: Movable arm, 5: Abacus-shaped slide roll, 6: Common shaft, 7: Fixed guide, 8: Protective case, 9, 10 , 11: Spring, 15: Insulator, 16: Running vehicle.

Claims (1)

[Claims] 1 Duct type trolley wire with arcuate cross section and inverted gutter shape 1
a current collector 2 that slides in contact with the inner circumferential surface of the current collector; a current collector support rod 3 that supports both ends of the current collector; Movable arms 4, 4 parallel to the book,
A common shaft 6 with both ends attached between the two movable arms, two abacus-shaped slide rolls 5, 5 loosely fitted on the common shaft, and the top surface of the bottom plate 8a of the protective case 8 and the bottom surface of the top cover 8b. Fixed guides 7, 7 are attached and extend parallel to the movable arm and sandwich the two slide rolls from above and below, respectively, and one end is fixed to the protective case to elastically move the movable arm in the vertical and horizontal directions. each spring 9 and 10, 11 that holds the
A current collector support device for a duct type trolley wire, comprising an insulator 15 for attaching the protective case to a traveling vehicle 16.