GB822662A - Improvements relating to drum brake mechanisms particularly for vehicles - Google Patents
Improvements relating to drum brake mechanisms particularly for vehiclesInfo
- Publication number
- GB822662A GB822662A GB18566/57A GB1856657A GB822662A GB 822662 A GB822662 A GB 822662A GB 18566/57 A GB18566/57 A GB 18566/57A GB 1856657 A GB1856657 A GB 1856657A GB 822662 A GB822662 A GB 822662A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- shoe
- shoes
- hydraulic
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D53/00—Brakes with braking members co-operating with both the periphery and the inner surface of a drum, wheel-rim, or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
822,662. Drum brakes. DELOREAN, J. Z. June 12, 1957 [June 14, 1956], No. 18566/57. Class 103 (1). A combined expanding and contracting shoe drum brake comprises a drum having a web member 22 contoured to receive a liner 28 providing radially spaced concentric braking surfaces 30 and 32. Inner and outer brake shoes 48 and 50 are applied to the surface 30 and 32 by an hydraulic cylinder and piston 76, 78. Since the inner shoe 48 is held against rotation by a pin 60 passed through a hole 58 in one end thereof, the drum rotation, as indicated by the arrow 86, tends to move the outer shoe 50 relative thereto so that the interaction of the rollers 72 on the ramps 68 and 70 tends to spread the shoes apart against the drum surfaces. Automatic adjustment of the shoe clearance may be carried out by a piston 92 having a non-return valve 98 therein in the hydraulic line to the cylinder 76. In another embodiment shown in Fig. 7, the hydraulic actuator cylinder 329 is disposed circumferentially between the adjacent ends of the friction members 321 and 323 which are of band form. The hydraulic actuators 459 may be disposed outside the drum as shown in Fig. 11, and operate against the ends of the shoes, by means of levers 455 and 461 pivoting on a floating link 465. The web member 22 of the drum is preferably provided with a plurality of cooling fins 534, as shown in Fig. 13.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US822662XA | 1956-06-14 | 1956-06-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB822662A true GB822662A (en) | 1959-10-28 |
Family
ID=22170109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18566/57A Expired GB822662A (en) | 1956-06-14 | 1957-06-12 | Improvements relating to drum brake mechanisms particularly for vehicles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB822662A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1993019307A1 (en) * | 1992-03-17 | 1993-09-30 | Eric Siegrist | Shielded vehicle brake |
DE102008050253B4 (en) * | 2008-10-07 | 2016-09-29 | Dewertokin Gmbh | wedge brake |
CN113124072A (en) * | 2021-02-26 | 2021-07-16 | 江苏开沃汽车有限公司 | Multi-brake-shoe drum brake and working method |
-
1957
- 1957-06-12 GB GB18566/57A patent/GB822662A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5293967A (en) * | 1989-01-17 | 1994-03-15 | Eric Siegrist | Shielded vehicle brake |
WO1993019307A1 (en) * | 1992-03-17 | 1993-09-30 | Eric Siegrist | Shielded vehicle brake |
DE102008050253B4 (en) * | 2008-10-07 | 2016-09-29 | Dewertokin Gmbh | wedge brake |
CN113124072A (en) * | 2021-02-26 | 2021-07-16 | 江苏开沃汽车有限公司 | Multi-brake-shoe drum brake and working method |
CN113124072B (en) * | 2021-02-26 | 2024-03-12 | 江苏开沃汽车有限公司 | Multi-brake shoe drum brake and working method |
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