US1630060A - Brake - Google Patents

Description

May 24, 1927.

.- -MWWWWMMWWW4W- 9 1,630,060 M. w. MOCONKEY BRAKE Filed Oct. 7, 1925 INVENTOR Patented May 24, 1927..

, MONTGOMERY w. MCCONKEY,

1,630,066 PATENT or CHICAGO, ILLINOIS, AssIeNoIt'ro BENnIx BRAKE.

COMPANY, or CHICAGO, ILLINOIS, A. CORPORATION OF ILnINoIs.

BRAKE.

Application filed October 7, 1925. Serial u 60,990.

This invention relates to brakes, and is il lustrated as embodied in a three-shoe Bendix brake. An object of the invention is to provide greater simplicity of the end' shoes, by forming the central shoe at its ends to overlap the end shoes. Preferably this is done by making the central shoe T- shaped in section at its center and providing it with spaced flanges at one or both ends to straddle the ends of the other shoes, as for example by making the ends of the central shoe of channel form.

, In'one desirable arrangement, the central shoeisflmade by securing back to back two L-sectionf stampings', and spreading their radial flanges apart at both ends of the shoe to form the spaced flanges. I prefer to fasten :1 separate plate acrom each pair of spaced flanges to form a continuation of the vfriction face.

The above and other objects and features of the invention, including various novel combinations of parts and desirable particular constructions, will be apparent from the following description of one illustrative em bodiment shown in the accompanying drawings, in which:

Fig. 1 is a side elevation of the shoes in assembled relation;

Fig. 2 is a section on the line 2-2 of Fig. 1, showing the connection between two of the shoes;

Fig. 3 is a section on the line 3-3 of Fig. 1, showing the same connection;

Fig. 4 1s a section through the central shoe on the line 4--4 of Fig. 1; and

Fig. 5 is a section through the adjacent I ends of two of the shoes on the line 5-5 of %he brake shown in Fig.1 includes generally a central shoe 10 anchored at 12, a servo end shoe 14, and a reverse end shoe 16. Shoes 14 and 16 are forced apart to apply the brake, against the resistance of return springs 18 and 20 by means such as a double cam 22.

The central shoe 10 is made up largely of two L-section stamp'ings (Fig. 4) having oppositely-extending cylindrical flanges 24 Carr ing the brake lining, and radial webs or anges 26 riveted or otherwise secured together, the flanges being arranged back to back.

At each end of the shoe 10, flanges or wens 26 are forked or spread apart to form than by the terms of the appended claims.

ter and having spaced flanges at each end,

spaced parallel flal'iges straddling the end of one of the shoes" ,4 or 16. Flanges 24 on these spaced webs are=depressed to receive a pair of plates 28, one at each end of the shoe, bridging the spaced webs and riveted or otherwise secured to flanges 24 to form continuations of the face of the shoe, thus forming a channel section at each end of the shoe.

At the unanchored (left) end of shoe 10, a pin 30 pivotally connects the end of shoe 14 to the flan 'es 26 between which it projects. Preferably pin 230 ias a large enough head to engage slidably the backing plate of the brake, to position the shoe laterally. l/Vhile shoe 16 may if desired be anchored directly on the backing plate, as illustrated and described in Dodge Patent No. 1,567,- 716, I prefer that it be pivotally connected to its pair of flanges 26 at the anchored (rigl'it) end of shoe 10 by a pin 32 which may, if desired, be identical and interchang- Male with pin 30.

Flanges 26 at the right end of shoe 10 extend beyond their plate 28', to be pivoted upon the fixed anchor 12, which passes through a relatively large opening in shoe 16 so that it does not interfere with the movement of that shoe.

While one illustrative embodiment has been described in detail, it is not my intention to limit the scope of the invention to that particular embodiment, or otherwise I claim:

1. A brake comprising, in combination, a. centralshoe T shaped in section at. its center and having spaced flanges at each end, and end shoes, each of which extends between the spaced flanges at one end of the central shoe, beyond the end of the friction face of the central shoe.

2. A brake comprising, in combination, a central shoe T-shaped in section at its cenand end shoes, each of which extends be tween the spaced flanges at one end of the central shoe, together with two plates each bridging one set of spaced flanges at one end of the central shoe and forming a part of the face of the shoe.

3. A brake comprising, in combination, a central shoe T-shaped in section at its center and having spaced flanges at each end, and end shoes, each of which extends be tween the spaced flanges at one end of the central shoe beyond the end of the friction face of the central shoe, together with means for taking braking torque at one end of the central shoe.

4. A brake comprising, in combination, a central shoe T-shaped in section at its center and having spaced flanges at each end, and end shoes, each of which extends between the spaced flanges at one end of the central shoe, beyond the end of the friction face of the central shoe, together with means for taking braking torque at one end of the central shoe and means for connecting the end shoes to the central shoe.

.5. A brake shoe channel-shaped at both ends and T-shaped in cross-section at its center.

6. A brake shoe channel-shaped at both ends and T-shaped in cross-section at its center, and having the side flanges of one channel-shaped end extended and provided with anchoring means.

'7. A brake shoe made of pressed-metal parts, two of which are L-shaped in crosssection and secured together back to back with the radial parts in engagement at the center of the shoe and spread apart to form spaced parallel flanges at both ends of the s cc.

8. A brake shoe made of pressed-metal parts, two of which are L-shaped in crosssection and secured together back to back with the radial parts in engagement at the center of the shoe and spread apart to form s aced parallel flanges at both ends of the shoe, together with two plates bridging the flanges at the two ends of the shoe.

9. A brake comprising, in combination, a central shoe T-sha ed in section in'its central portion and aving spaced flanges at least at one end, an end shoe projecting between said flanges at the end of the shoe beyond the end of the friction face of the shoe to overlap part of the shoe, means to take braking torque from the overlapped ends of the shoes, and another shoe connected to the opposite end of the central shoe and arranged to apply the central shoe.

10. A brake comprising, in combination, a central shoe T-shaped in section in its central portion and having spaced flanges at least at one end, an end shoe projecting between said flanges at the end of the shoe beyond the end of the friction face of the shoe and pivoted to said flanges of the shoe, and another shoe arranged at the opposite end of the central shoe, the two end shoes being arranged to be forced in opposite directions to apply the brake, and at least one of the end shoes being arranged to apply the central shoe.

11. A brake comprising, in combination, a central shoe made up of pressed metal parts including two stiffening flanges secured togather in the central part of the shoe to form a single stiffening web and spread apart to form spaced flanges at least at one end of the shoe, an end shoe projecting between said spaced flanges to overlap part of the central shoe, means for taking braking torque from the overlapped ends of the shoes, and another end shoe connected to the opposite end of the central shoe, the two end shoes bein arranged to be forced in opposite directlons to apply the brake.

12. A brake comprising, in combination, a central shoe made up of pressed metal parts including two stiffening flanges secured to-' gether in the central part of the shoe to form a single stiffening web and spread apart to form spaced flanges at least at one end of the shoe, an end shoe projecting between and pivoted to said spaced flanges to overlap part of the central shoe, and another end shoe arranged at the opposite end of the central shoe, the two end shoes being arranged to be forced in opposite directions to apply the brake.

13. A brake shoe having in its center a single stiffening web which is forked at both ends of the shoe to form spaced flanges for straddling the ends of adjacent shoes, together with means bridging the flan es at least at one end to form a channelaped portion.

14. A brake shoe havin a curved friction face and a single stiffening web forked at one end of the shoe before the end of the friction face to straddle and be connected to the end of an adjacent shoe, and extending beyond the friction face and arranged to be pivoted on an anchor at the opposite end of the shoe.

15. A brake shoe having a curved friction face and a single stiffening web formed at one end of the shoe to be pivoted to the end of an adjacent shoe, and forked at the other end of the shoe before the end of the friction face and extended as a pair of spaced flanges projecting beyond the friction face and arranged to be pivoted upon an anchor alilid to straddle the end of another adjacent s cc.

In testimony whereof, I have hereunto signed my name.

MONTGOMERY W. MoCONKEY.

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