JPH0129757Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a brush wire holder for sliding brushes, which is particularly capable of welding brush wires reliably and uniformly, and which is easy to process into sliding brushes. This invention relates to a brush wire holder for sliding brushes that has excellent processing effects.

[Conventional technology]

As shown in FIG. 3, the conventional brush wire holder 20 has a pair of guide plates 22 that have guide holes 21 and are arranged in parallel, and a brush wire 23 is disposed between them.
Support plates 24 are arranged at regular intervals for aligning and placing and welding the support plates 24, and a projection 2 of an appropriate length is placed at an intermediate position in the width direction of the support plates 24.
5 was generally raised to form the entire structure in the form of a ladder.

[Problem that the invention attempts to solve]

However, since the projection 25 does not span the entire width of the support plate 24 but is stopped at the middle area and is raised, the height is not always uniform, such as having uneven heights at both ends. As a result, the welding current does not flow uniformly when resistance welding the brush wire 23 to the support plate 24 via the projection 25, and therefore, the welding current does not flow uniformly to the support plate 24. The degree of welding of the brush wires also tended to be weaker at the outer ends of the projections 25. Furthermore, when cutting off each support plate 24 after welding the brush wire 23 to the support plate 24, it is necessary to cut the portion as close to the brush wire 23 as possible, so the degree of welding is weak. A part of the brush wire 23 may fall off, etc.
There are still many problems to be solved regarding processing effects when using the expensive brush wire material 23.

[Means for solving problems]

This invention was devised in view of the problems that conventional examples had, with the aim of reliably welding the brush wire to the support plate and improving the processing effect in the processing operation. The gist of this is that a projecting piece is provided on one side of the support plate, and a uniform projection is provided over the entire width in the direction that intersects with the projecting direction of this projecting piece. It is now possible to align and place a number of brush wires corresponding to the width of the projector uniformly on the protrusion and reliably weld them, and the processing effect also improves work precision and accuracy. This is something that can be dramatically improved.

〔Example〕

Hereinafter, one embodiment of this invention will be described in detail based on the drawings.

A support plate 1 made of metal is integrally disposed between a pair of guide plates 6 that have guide holes 5 and are provided in parallel. By placing them and making them continuous, the whole becomes like a ladder and forms the holder 4. Each support plate 1 of the holder 4 has a projecting piece 2 projecting from the center of one side edge thereof. The width of this protruding piece 2 can be selectively selected from various widths depending on the number of brush wires 7 that need to be welded, and the protruding shape can also be freely selected, not limited to the illustrated example. can do.

A protrusion 3 is provided on each protrusion 2 provided in this manner so as to be perpendicular to the length direction of the brush wire 7 on which it is placed. This projection 3 has a substantially semicircular cross section, and is raised uniformly over the entire width of the protrusion 2 in the form of a line with the same height. Therefore, both ends of the projection 3 are cut off. It looks like it has been dropped. The raised position of the projection 3 may be anywhere on the protrusion 2, but it is more preferably near the tip edge of the protrusion 2.

[Effect]

Since this device is constructed as described above, the welding of the brush wires 7 to the holder 4 is carried out by first making sure that the brush wires 7 have a width that allows the required number of brush wires 7 to be arranged and placed properly. Select the holder 4 on which the protruding piece 2 is provided, and attach this holder 4.
The brush wire 7 is placed on the protrusion 2 via the support plate 1 and projection 3.

Thereafter, the brush wire 7 is integrally welded to the projecting piece 2 using a conventional projection welding technique. At this time, the protrusion 3 provided on the protrusion 2 extends over the entire width of the protrusion 2.
Moreover, since both ends are cut off and are provided at the same height and uniformly, the resistance current can also flow smoothly and uniformly, and therefore the mutual interaction between the brush wire 7 and the protruding piece 2 The welding state can be ensured.

After such welding work is completed, the projecting piece 2 and the brush wire 7 are separated from the holder 4 as a unit in order to manufacture a sliding brush. In the case of the conventional example shown in FIG. 3, this cutting operation requires cutting at a total of three locations: the appropriate location of the brush wire 23 and the two sides of the support plate 24 with the brush wire 23 sandwiched therebetween. Moreover, since the raised projections 25 are not of the same height and uniform, when cutting the support plate 24 close to the brush wire 23, the outer brush wire 23, which is in an uncertain welded state, comes off. However, with this invention, excellent processing effects can be obtained.

That is, as is clear from FIG. 1, it is sufficient to simply cut the proximal end of the protrusion 2 that is in contact with the support plate 1 together with the brush wire 7 without cutting the support plate 1 in any way. Since the desired width is selected in advance, the work can be completed by cutting only at one point.

〔effect〕

As described above, this invention not only simplifies the work process in manufacturing sliding brushes, but also allows the use of expensive and valuable brush wire without wasting it. The processing accuracy can be dramatically improved compared to the conventional example, and various excellent practical effects can be obtained in terms of processing effects.

[Brief explanation of the drawing]

In the drawings, Fig. 1 is an enlarged perspective view showing an embodiment of this invention, Fig. 2 is a perspective view showing the overall structure to which this invention is applied, and Fig. 3 is a perspective view showing the overall structure of a conventional example. . DESCRIPTION OF SYMBOLS 1...Support plate, 2...Protrusion piece, 3...Projection, 4...Holder, 5...Guide hole, 6...
...Guide plate, 7...Brush wire material.

Claims (1)

[Scope of utility model registration request] A slide characterized in that a protruding piece is provided on one side of a support plate constituting a brush wire holder of a sliding brush, and a homogeneous projection is provided over the entire width in a direction intersecting the protruding direction of the protruding piece. Brush wire holder for moving brushes.