JPH0349311Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a drive brake band used in video decks, tape recorders, etc.

[Prior art]

As shown in Fig. 5, a brake band for stopping the drive of a video deck, tape recorder, etc. is made using a resin molding mold that has a plurality of narrow bands 2 made of phosphor bronze material with felt 1 attached to one side. The holder 3 of the required structure was manually formed on both ends of the band. Although not shown, the holder has means for crimping the band.

[The problem that the idea attempts to solve]

The above-mentioned conventional technology using mold molding has the following problems.

(a) Since the number of shots per hour is limited, efficiency is poor and demand cannot be met.

(b) It is necessary to change the mold depending on the length of the band, and a large machine must be used despite the small amount of resin, which also increases equipment costs.

(c) The work area is identified.

(d) As the production volume increases, more molds must be installed, which is uneconomical.

(e) There are many unstable elements in the product, and the defective product rate is high.

The caulking means described above has the following problems.

It requires equipment and a fixed stand, which makes the work inefficient, and the work place has to be specified in the same way as above.

[Means to solve the problem]

The structure of the present invention, which solves the problems of the prior art, is that a holder is attached to each end of a brake band in which a thin strip-shaped friction band made of felt is attached to one side of a thin strip-shaped band that is non-stretchable and has elasticity. In the driving brake band to which the brake band is attached, at least two pins, which are spaced apart from each other in the longitudinal direction of the brake band and are longer than the wall thickness of the brake band, are attached to the brake band mounting surfaces of both holders. Holes formed at both ends of the brake band are inserted into the pins, and holes formed in the lock cover having clamping pieces on both sides are inserted into the pins protruding from the brake band surface. is inserted into the holder, and engaging claws protruding from both sides of each holder are engaged with lock holes provided in both of the clamping pieces.

〔Example〕

The embodiments of the present invention will be described in detail with reference to the drawings.

Figure 1 is an exploded perspective view, Figure 2 is a partially cutaway front view of the product, Figure 3 is a sectional view taken along line A-A in Figure 2, and Figure 4 is a cross-sectional view taken along line A-A in Figure 2.
The figure is a sectional view taken along line B-B in FIG. 2.

First, the structure of each member constituting the product of the present invention will be explained with reference to FIG. Reference numeral 11 denotes a brake band, and this brake band 11 is composed of a non-stretchable but elastic band 11b made of a luminor film material with a thin strip-shaped felt band 11a attached to one side. Two holes 12 are formed at both ends of the brake band 11 at a predetermined interval, and on both sides of the brake band 11 between the holes 12, hooking pieces for a lock cover, which will be described later, are provided. Intervening notch 1
3 are formed respectively.

Reference numerals 14 and 15 denote holders having a required structure that are attached to both ends of the brake band 11, and the thickness of both the holders 14 and 15 is formed to be the same as the width of the brake band 11. Pins 16a and 16b, which are inserted into holes 12 provided in the brake band 11, are integrally formed on the mounting surface of the brake band 11. In addition, notches 17 and 18 are formed on both side surfaces of both holders 14 and 15, into which the lock cover clamping pieces described later are fitted, and these notches 17 and 18 are tapered on the brake band mounting surface side. An engaging claw 1 formed with surfaces 19a and 20a and engaging vertical surfaces 19b and 20b formed on the opposite side thereof.
9 and 20 are integrally formed.

21 is a lock cover, the thickness of the lock cover 21 is formed to be the same width as the brake band 11, and on both sides of the lock cover 21,
A clamping piece 22 is integrally formed with a thickness suitable for fitting into the notches 13, 17, and 18, and has a tapered surface 22a formed inside the tip. The engaging claws 19, 2 are attached to both of the clamping pieces 22.
A rectangular locking hole 23 is formed to engage with the vertical engagement surfaces 19b and 20b of 0. Further, a hole 24 is provided on the side of the lock cover 21 which contacts the brake band 11, into which the pin 16 protruding from the hole 12 of the brake band 11 is inserted. Although this hole 24 passes through the lock cover 21, it is not limited to the illustrated structure since the same effect can be obtained even with a blind hole structure. Further, since the structures of both the holders 14 and 15 differ depending on the model of each manufacturer, they are not specified as shown in the drawings.

[Explanation of assembly action]

To explain the assembly means with reference to FIGS. 1 and 2, in FIG.
2, and then the respective pins 16a, 1
Insert the lock hole 24 of the lock cover 21 into the lock cover 6b, and insert the clamping piece 22 of the lock cover 21 into the lock hole 24 of the lock cover 21.
Brake band 11 notch 13, holder 1
When the brake band 11 is fitted into the notches 17 and 18 of the holders 14 and 15 with the lock cover 21 so as to be clamped between the holders 14 and 15, the tapered surface provided on the clamping piece 22 22a
and a tapered surface 19 provided on the engaging claws 19, 20.
a and 20a act to move the clamping piece 22 outward, and when it passes over the engaging claws 19 and 20, both clamping pieces 22 return to their old state and engage the lock hole 23. The edge is the engagement vertical surface 19b of the engagement claws 19, 20,
20b, the lock cover 21 is fixed as shown in FIG. 2 and will not come off. Also, the third
As shown in Figure 4, the clamping piece 2 of the lock cover 21
The outer surface of holder 2 and the outer surface of both holders 14 and 15 are on the same surface, so that there is no problem in assembly.

[Effect of idea]

As described above, the configuration of the present invention provides the following effects.

(a) Since the product can be obtained by simple assembly, there is no need for conventional equipment investment and it is economical.

(b) Since it can be made anywhere using only parts, it is possible to rely on domestic workers, mass production is possible depending on the number of people, and cost reductions can be rationally achieved.

(c) Since the product is an assembly of parts, if the parts are well managed, the defective rate can be greatly reduced.

(d) Work preparations can be made quickly.

(e) There is a high degree of freedom in product design, such as the length and shortness of the brake band, depending on how the parts are combined.

(f) If any of the holders are defective, they can be replaced and there is no waste.

[Brief explanation of drawings]

Figure 1 is an exploded perspective view, Figure 2 is a partially cutaway front view of the product, Figure 3 is a sectional view taken along line A-A in Figure 2, and Figure 4 is a cross-sectional view taken along line A-A in Figure 2.
The figure is a sectional view taken along the line B--B in FIG. 2, and FIG. 5 is a partially cutaway front view of the conventional example. 11...brake band, 12...hole, 13...
...Notch, 14, 15...Holder, 16a, 1
6b... Pin, 17, 18... Notch, 19, 2
0... Engaging claw, 21... Lock cover, 22...
Clamping piece, 23...lock hole, 24...hole.

Claims (1)

[Scope of Claim for Utility Model Registration] A drive brake in which a holder is attached to each end of a brake band in which a thin strip-shaped friction band made of felt or the like is attached to one side of a thin strip-shaped band that is non-stretchable and elastic. In the band, at least two pins are formed integrally and vertically on the brake band mounting surfaces of both holders at a predetermined interval along the longitudinal direction of the brake band and are longer than the wall thickness of the brake band. At the same time, the holes drilled at both ends of the brake band are inserted into the pins, and the holes of the lock cover having clamping pieces on both sides are inserted into the pins protruding from the brake band surface. A drive brake band characterized in that engaging claws protruding from both sides of each of the holders are engaged with lock holes provided in both of the clamping pieces.