US1653691A - office - Google Patents

Description

V. BENDIX BRAKE SHOE Dec. 27, 1927,

Filed June 20. 1927 Hag d ENVENTOR VINCENT @ENW ATTORNEY Patented Dec. 27, 1927.

tllil'fElft STATS PATENT FFlQE.

VINCENT BENTDIX, OF CHICAGO, ILLINOIS, ASSIGNOR TO BENDIX BRAKE. COMPANY, OF {SOUTH BEND, INDIANA, A CORPORATION OF ILLINOIS.

BRAKE SHOE.

Application filed June 20, 1927. Serial No. 200,041.

This invention relates to brake shoes, and is illustrated as embodied in shoes for an internal expanding. automobile brake. An object of the invention is to provide a light but strong shoe, by pressing out in one piece two integrally-comiccted sections or stampings, which are afterwards folded upon each other, preferably along a chord of the shoe.

The sections are shown as being L-shaped in section, and folded upon each other back to back, so that they provide a double-thickness stiffening web. This web may be Cut away, for example when cutting out the blank, as described below, in such a manner as to lighten the shoe without sacrificing its strength.

The above and other objects and features of the invention, including various novel and desirable structural details, will be apparent from the following description of the illustrative embodiments shown in the accompanying drawing, in which:

Figure 1 is a side elevation of one form of shoe, finished except for attachingthe brake lining;

Figure 2 is a top plan view of the shoe shown in Figure 1;

Figure 3 is a section through the shoe on the line 33 of Figure 1; and

Figures 1 and 5 are side elevations of modified forms of shoes embodying my in vention.

The shoe illustrated in Figures 1*3 is a secondary shoe for a three-shoe brake of the type described in Patent No. 1,567,716, granted Bendix Brake Company on December 29, 1925, on application of A. Y. Dodge.

This novel shoe includes two sections or stampings, each including an arcuate flange 10 to which the'brake lining may be attached, the two flanges 10 thus :lorming the friction face of the shoe.

Each section also. includes a portion or web 12, the two web port-ions being integrally connected at 1 1 along their inner edges, at opposite ends of the shoe, along a chord ofthe shoe. Thus in manufacturing the shoe, the two sections are folded together along a line passing through and connecting the portions 14, the twoweb portions 12 then being spot-welded or riveted or otherwise secured together to form a doublethickness stiffening web.

Bushings 16 and 18 may be pressed into and for the pivot connecting the secondary shoe to a primary shoe which operates it.

The shoe of Figure t differs from that of Figures 1-3 in that the two ends are alike, these ends afterwards being suitably formed, or provided with extra fittings of any desired character, to permit the shoe to be used in any brake for which it may be adapted. The shoe of Figure 5 has the fold extending continuously at 20 along its inner edge, on a chord of the shoe, merely having openings 22 to lighten it.

While several illustrative embodiments have been described in detail, it is not my intention to limit the scope of the invention to those particular embodiment-nor otherwise than by the terms of the appended claims.

I claim: 1

1. An arcuate brake shoe comprising two integrally-connected sections folded upon each other along a chord of the shoe.

2. An arcuate brake shoe comprising two integrally-connected Leshaped sections folded upon each other back to back along a chord of the shoe.

3. An arcuate brake shoe comprising two integrally-connected sections folded upon each other along a chord of the shoe to form a double-thickness web.

4. An arcuate brake shoe comprising two integrally-connected sections folded upon each other along a chord of the shoe to form a double-thickness web which is cut away to lighten it.

. 5. An arcuate brake shoe comprising two integrally-comiected sections folded upon each other along a chord of the shoe to form a double-thickness web cut away from said chord along an are generally paralleling the friction face of the shoe. 1

6. An arcuate brake shoe comprising two sections integrally connected at spaced points and cut away between said points and folded upon each other along a line passing through said points.

7. An arcuate brake shoe comprising two sections integrally connected at opposite ends of the shoe and folded upon each other.

In testimony whereof, I have hereunto s1 gned my name.

VINCENT BENDIX.

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