JPS62126095A - Trolley current collector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a trolley current collector used in a trolley system that supplies power to a moving load such as a hoist.

[Background technology]

Conventionally, a trolley current collector shown in FIG. 6 has been used. This conventional device has a current collector 51 provided at the tip.
- The base end of the arm 52 is attached to a cylindrical rotating member 53, a rotating shaft 55 provided upright on the base member 54 is inserted into the rotating member 53, and a retaining fitting 56 is caulked to the tip of the rotating shaft 55. It is.

However, according to this conventional structure, the retaining fitting 56 is caulked to the rotating shaft 55 to prevent the rotating member 53 from being removed, making it difficult to disassemble and causing damage to the arm 52, rotating member 53, etc. If the trolley current collector becomes worn out, it is not possible to replace the part, so the entire trolley current collector needs to be replaced. Furthermore, since the retaining fitting 56 is caulked, a caulking process is required, which complicates assembly.

[Purpose of the invention]

An object of the present invention is to provide a trolley current collector whose arm can be easily replaced and assembled.

[Disclosure of the invention]

The trolley current collector of the present invention includes a current collecting arm block in which the base end of an arm having a current collector provided at the tip is attached to a rotating member having a spindle insertion hole; A base member having a cap engaging portion to which the proximal end of the rotating support shaft is attached; and a camp that covers the tip of the rotating support shaft and having an engaging piece that removably engages with the cap engaging portion. It is something that

According to the structure of the present invention, the cap, which removably engages with the cap engagement portion of the base member, is placed over the tip of the rotating shaft to secure the rotating member to which the arm is attached. You can easily remove the current collector arm block by simply removing it. Therefore, the arm can be easily replaced in case of wear or damage. In addition, since the cap is attached to the base member by engagement between the cap engagement part and the engagement piece, it is easier to attach the cap to the base member than with conventional ones that require caulking.
Easy to assemble.

Embodiment An embodiment of the present invention will be described with reference to FIGS. 1 to 5. This trolley current collector includes a current collecting arm block A, which is formed by attaching the base end of an arm 2.3 having a current collector l at the tip to a rotating member 5 having a supporting shaft insertion hole 4, and a supporting shaft of the rotating member 5. The rotation support has a base member 8 having a cap engagement portion 7 to which the base end of a rotation support shaft 6 inserted through the hlilrl hole 4 is attached, and an engagement piece 9 that detachably engages with the cap engagement portion 7. It is equipped with a cap 10 that covers the tip of the shaft 6. The base member 8 and a pair of saddles 11 and 12 constitute a heath block.

The base member 8 is made of a resin molded product that is integrally molded as a whole, and has a bottom 9 having groove-shaped portions 8b on both sides of a box-shaped portion 8a, and a rotation support shaft mounting hole 13. 0 which forms part 8c.
The rotation support shaft 6 has a male threaded portion 6a extending from the base end thereof, has a locking flange 6b, and is inserted into the rotation support shaft mounting hole 13 of the base member 8.

The male threaded portion 6a passes through the mounting hole of the saddle 11.12, and the NAND 14 and Wano Soya [5] are attached thereto. The saddles 11 and 12 sandwich a rod-like body (not shown) of a moving load, and by pressing the rod-like body against the lower surface of the base member 8 with the saddles 12, the base member 8 is attached to the moving load. The cap engaging portion 7 of the base member 8 consists of a downward step formed on the inner surface of the front wall and the rear wall of the box-shaped portion 8a of the base member 8, as shown in No. 5 No. 1.

The cap 10 is placed on the upper surface of the base member 8, and has a pair of cylindrical bosses 16 through which the tip of the rotation support shaft 6 passes.
and a pair of engaging pieces 9 are integrally provided on the lower surface. The engaging piece 9 consists of an outward hook-shaped elastic piece, and its tip engages with the cap engaging portion 7 of the base member 8.

The current collecting arm block A will be explained. two arms 2, 3
Each of the base ends is pin-coupled to the cylindrical rotating member 5, and the distal end is pin-coupled to the bearing sleeve 18.

A spring member 19 (Fig. 4) is hung between the six arm 2.3 arms 2.3, the rotating member 5, and the bearing cylinder 18 that constitute a parallel link mechanism. is biased in the direction that the tip rises.

A shaft portion 20a of a rotary seat member 20 is rotatably fitted into the bearing tube 18, and a current collector holder 21 is rotatably mounted on the rotary seat member 20 at an arcuate cutout surface 21a. The current collector holder 21 has a current collector 1 integrally fixed thereto, and a lead wire 22 is connected to the current collector 1.

According to this configuration, the cap 10 that removably engages with the camping engagement portion 7 of the base member 8 is placed over the tip of the rotating shaft 6, and the i! Since it is closed, just remove the cap lO.
Collecting arm block A can be removed from Am. Therefore, the arms 2 and 3 can be easily replaced in the event of wear or damage. Further, since the cap 1.0 is attached to the base member 8 by engagement between the cap engaging portion 7 and the engaging piece 9, assembly is easier than in the conventional case which requires caulking. Moreover, the attachment of the camp 10 to the base member 8 and the holding of the rotation support shaft 6 can be performed simultaneously.

Since the engaging piece 9 of the cap 10 is engaged with the cap engaging part 7 provided inside the base member 8, there is no fear that it will come off or loosen due to contact with an object, vibration, etc. Furthermore, since the cap 1O has a simple structure and can be formed from a molded product, the external design is more neat and tidy compared to the conventional cap which is caulked with a sheet metal retaining fitting.

In the above embodiment, an example was explained in which two sets of current collecting arm blocks A were provided on the base member 8, but it is also possible to provide only one set of current collecting arm blocks A. In block A, arm 2.3 is either 1
It may be from a book.

〔Effect of the invention〕

In the trolley current collector of the present invention, a cap that removably engages with the cap engaging portion of the base member is placed over the tip of the rotating shaft to prevent the rotating member to which the arm is attached from coming off. The current collector arm block can be easily removed by simply removing the cap. Therefore, the arm can be easily replaced in case of wear or damage. Furthermore, since the cap is attached to the base member by engagement between the cap engaging portion and the engaging piece, assembly is easier than in the conventional cap which requires caulking.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a plan view thereof, FIG. Side view, No. 6
The figure is a perspective view of a conventional example. DESCRIPTION OF SYMBOLS 1... Current collector, 2, 3... Arm, 4... Spindle insertion hole, 5... Rotating member, 6... Rotating spindle, 7...
Cap engaging portion, 8... Base member, 9... Engaging piece, 10... Cap, A... il? li arm bronok: m knee = i-1 Patent applicant Matsushita Electric Works Co., Ltd. ・ 苧. Agent Patent Attorney Akio Kanai One 1 - Current collector + 9 - Engaging piece Figure 1 Figure 4 Figure 5

Claims (1)

[Claims] A current collecting arm block has a base end of an arm provided with a current collector at its tip attached to a rotating member having a spindle insertion hole, and a base end of a rotating spindle that is inserted into the spindle insertion hole of the rotating member is attached. A trolley current collector comprising: a base member having a cap engaging portion; and a cap having an engaging piece that removably engages with the cap engaging portion and covering the tip of the rotating shaft.