| 摘要 |
<p>1,173,410. Disc brakes. SOC. ANON. FRANCAISE DU FERODO. 13 June, 1968 [16 June, 1967], No. 28239/68. Heading F2E. A caliper disc brake has the hydraulic operating cylinder detachable for replacing the pads. The basic embodiment is shown in exploded form in Fig. 4, and comprises a fixed support member made of sheet metal parts and formed by a U-shaped member 11 with two reinforcing members 13, a bracket 12 and topplate 14 assembled as shown and fastened together e.g. by welding. In assembling the brake the "transfer ring" 39 is then put on by sliding notches 41 ... 44 over the legs 11 of the U-member until it rests in notches 21, 23 in legs 11. Brake pads and backing plates 18A and 18B are then inserted and the ring 39 moved to the right so that angle-piece 40 retains the pad 18B. The actuating cylinder 28 is then fitted over studs 26 and secured by wing-nuts 65. The projection 35 on the cylinder serves to retain the other pad 18A. Antichatter, corrugated blade springs are then inserted in the U-bends with ends 49 resting on the backing plate. The actuating cylinder is provided with a primary piston (31) acting directly on pad 18A and a secondary piston (32) acting on the transfer ring Fig. 3 (not shown). Modifications.-The bearing surface for the backing plates may be widened by "half-olive" deformations in the parts 12, 13, Figs. 6 ... 8 (not shown), or by bending tags (231) back Fig. 14 (not shown). The transfer ring may be provided with a blade (55) which is riveted to it after assembly and slides in the notches 21, Fig. 5 (not shown). The secondary piston may be provided with a round ended buffer, Fig. 11 (not shown), or a slotted buffer to hold the retaining ring Figs. 15 ... 17 (not shown). A "hair-pin" shaped spring (216) engaging under the U-member may be used to hold the transfer ring down and impart some release force Figs. 9, 10, 12 (not shown). The projection 35 on the cylinder may overhang both pads and press the arms of a blade spring (201) against the top of the backing plates Figs. 9, 11 (not shown).</p> |
