JPS591537Y2 - brush components - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a brush arrangement.

The rotating brush unit 1 shown in FIG. 1 using conventional brush components is assembled as follows.

That is, a small bundle of wire rods 4 made of metal, synthetic resin, animal hair, etc. is inserted into each of the wire rod insertion holes 3 on the required side that are formed at predetermined intervals on the peripheral edge of the disc-shaped substrate 2, and the length of the wire rods 4 is After bending it in the middle to form a U-shape, the required number of disk-shaped substrates 2 are
In the drawing, three sheets are stacked one on top of the other, a pair of clamping disks 5, 5 are placed on both sides of the polymer, and a headed connecting pin 7 is inserted into a through hole 6 drilled in common between the two, and one end of the polymer is inserted. The brush unit 1 is formed by caulking the base plate 2 and the wire rod 4 together by a pair of clamping discs 5, 5.

However, conventional brush components have the following drawbacks.

First, since it requires a pair of clamping discs 5, 5, when the brush unit 1 is assembled, the clamping disc 5 protrudes outside the wire rod 4, so that the brush on the required side is When the unit body 1 is inserted through the rotating shaft to construct a rotating brush of a predetermined length, the holding disc 5 of the brush unit body 1 becomes an obstacle, making it impossible to arrange the wire rods 4 continuously. 4
The drawback was that it created parts where none existed.

Second, the structure is such that the end of the connecting pin 7 is caulked and the small bundle of the substrate 2 and the wire rod 4 is held between the holding disks 5, 5, and the wire rod 4 is not securely fixed to the substrate 2. For,
While being used as a brush, the wire rod 4 may tilt in the opposite direction to the rotating direction due to resistance from the object to be treated, making it unable to fully perform its function.Also, for the same reason, the wire rod 4 may be easily pulled out, and the wire rod 4 may be easily pulled out. When the wire rod 4 is pulled out, the clamping force for the wire rod 4 becomes weaker, and the pulling out of the wire rod 4 increases at an accelerating rate.

Thirdly, since the wire 4 is not in any fixed state until the end of the connecting pin 7 is caulked, the wire 4 must be kept in the desired state and not pulled out during assembly work. The drawback was that you had to be careful, which took time to assemble.

This invention was made in order to eliminate the above-mentioned drawbacks, and the object is to provide a brush component that securely fixes a small bundle of wire rods to a substrate using metal fittings.

This invention will be explained below based on embodiments shown in the drawings.

FIG. 2 shows a circular substrate 12, which is one of the components of the brush component.

The shape of the substrate 12 is not limited to a circular shape, but can be any desired shape depending on the location and purpose of use.

Further, the material of the substrate 12 may be arbitrarily selected from steel, non-ferrous metal, synthetic resin, wood, etc. depending on the purpose and the like.

A required number of wire insertion holes 13 are formed in the substrate 12 at predetermined intervals around the center thereof.

The shape of the wire insertion hole 13 is not limited to a circular shape either, but may be any shape such as a rectangle.

A fitting insertion hole 15 having a desired shape is formed in a portion of the substrate 12 between the wire insertion hole 13 and the outer peripheral edge of the substrate 12 so as to be located between the wire insertion holes 13 .

A pair of metal fitting insertion holes 15 are required for each wire rod insertion hole 13, but in this embodiment, the metal fitting insertion hole 15 is shared by two adjacent wire rod insertion holes 13. Therefore, there is only one metal fitting insertion hole 15 between the wire insertion holes 13, 13, but if a pair of metal fitting insertion holes 15 are provided separately for each wire insertion hole 13, , two metal fitting insertion holes 15, 15 are present between the wire insertion holes 13, 13.

The metal fitting insertion hole 15 is an elongated hole, and its width is a little more than twice the thickness of a wire fixing metal fitting 17, which will be described later.

A rotary shaft insertion hole 16 is bored in the center of the substrate 12.

In FIG. 3, the wire fixing metal fitting 17, which is another one of the constituent members of the brush component, is shown in an enlarged state compared to the substrate 12 shown in FIG.

The wire fixing fitting 17 was formed by bending a single metal plate.

It has a T-shaped base 18 and an arm 18a thereof.

A pair of holding pieces 19.19 provided in series with 18a
and a holding claw 20 provided continuously to the foot portion 18b of the base portion 18.

Note that the holding claws 20 are not necessarily required.

Next, referring to FIGS. 4 to 6, the substrate 12
A method of assembling the brush unit 1 using the wire fixing fittings 17 will be explained.

First, a small bundle of wire rods 14 made of a desired material such as metal, synthetic resin, or animal hair is inserted into the wire insertion hole 13 of the board 12 and bent at the middle of its length to form a U-shape. After that, insert the holding pieces 19, 19 of the wire rod fixing fitting 17 into the fitting insertion hole 15.1.
At the same time, the holding claw 20 is inserted into the wire rod insertion hole 13 in such a manner as to hold the bent portion of the small bundle of wire rods 14.

After that, the holding claws 20 are bent toward the small bundle of wire rods 14,
Next, the pair of holding pieces 19, 19 are bent so as to surround the holding claw 20.

By repeating such operations, one brush unit 11 is constructed.

Note that the holding claws 20 and the holding pieces 19, 19 are bent when the substrate 1 is bent.
Of course, it is also possible to perform this after all the wire fixing fittings 17 are attached to 2.

FIG. 7 shows an example of another aspect of the fixing means for the wire fixing fitting 17.

That is, after the tips of the holding pieces 19, 19 are overlapped and rolled up integrally, the holding pieces 19, 19 are pressed into a flat shape.
19 are integrated.

The brush unit 11 assembled in this manner can be used alone or in a predetermined number stacked together for any purpose such as polishing, rust removal, chamfering, etc.

8A and 8B show another example of the shape of the substrate 12.

8A shows the substrate 12 in an L-shape, and the opening in FIG. 8A shows the substrate 12 in an elongated rectangular shape.

In short, the shape of the substrate 12 is arbitrarily determined depending on the application.

Based on the above, according to this invention, a small bundle of wire rods is fixed to a board using a wire rod fixing fitting, and unlike conventional products, a pair of clamping disks is not required. Even when the brush units are used in a stacked manner, the wire rods can be arranged continuously without causing irregularities in the density of the wire rods, and the function as a brush can be improved.

Furthermore, since the small bundle of wire rods can be securely and firmly fixed to the substrate using the wire rod fixing fitting, unlike conventional products, the wire rods do not tilt or pull out.

Furthermore, a small bundle of wire rods can be fixed by inserting the holding piece of the wire rod fixing fitting into the metal fitting insertion hole of the board and winding it in a new winding or overlapping manner, so the work of fixing the wire rod is extremely simple. It has the following effects.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view of a conventional brush unit, Fig. 2 is a front view of a board according to an embodiment of this invention, Fig. 3 is a perspective view of the same wire fixing fitting, and Fig. 4 is an embodiment of this invention. Fig. 5 is an enlarged sectional view taken along line 4 - V of Fig. 4, and Fig. 6 is an enlarged cross-sectional view of Fig. 4 - I-v.
7 is a diagram corresponding to FIG. 6 showing an example of another embodiment of the fixing means for the wire fixing fitting, and FIG. 8 is a front view showing an example of another embodiment of the board. . 12... Board, 13... Wire insertion hole,
14...Wire rod, 15...Metal fitting insertion hole,
17...Wire fixing fitting, 18...Base, 19...Holding piece.

Claims (1)

[Claims for Utility Model Registration] 1 A pair of metal fitting insertion holes are formed in a board having a predetermined shape for each of the wire rod insertion hole and the wire rod insertion hole on the required side, and at least one pair of holding pieces are provided in the metal fitting insertion holes. The base end of a small bundle of wire rods made of a predetermined material such as metal is inserted into the wire rod insertion hole by bending the holding piece of the wire rod fixing metal fitting which is inserted into the wire rod insertion hole. A brush component characterized by having a fixed portion. 2. The brush component according to claim 1, wherein the metal fitting insertion hole is shared by two adjacent wire rod insertion holes. 3. The brush component according to claim 1, wherein the wire rod fixing fitting has a holding leg that is bent and inserted into the wire insertion hole.