GB580588A - Improvements in or relating to brakes - Google Patents
Improvements in or relating to brakesInfo
- Publication number
- GB580588A GB580588A GB21013/44A GB2101344A GB580588A GB 580588 A GB580588 A GB 580588A GB 21013/44 A GB21013/44 A GB 21013/44A GB 2101344 A GB2101344 A GB 2101344A GB 580588 A GB580588 A GB 580588A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shoes
- anchor
- shoe
- spring
- back plate
- 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
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
- F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
- F16D51/20—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots
- F16D51/24—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots fluid actuated
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/60—Cables or chains, e.g. Bowden cables
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
580,588. Brakes. BENDIX AVIATION CORPORATION. Oct. 27, 1944, No. 21013. Convention date, Jan. 20. [Class 103 (i)] In an internally expanding brake wherein the brake shoes abut on a common fixed anchor, the anchor has flat abutment surfaces which are substantially radial to the drum and the retracting spring is arranged between the anchor and the adjustable stops for the shoes. The spring may be arranged to keep the shoes in frictional contact with the back plate as well as to retract the shoes. In Fig. 1, the lower ends 20, 22 of the shoes 16, 18 contact with the flats on the anchor 24 which permit radial sliding of the shoe ends, and the shoes are spread by an hydraulic actuator. The shoes are each adjusted by a rotatable member 40 having an eccentric pin 48 in contact with the web of the shoe, the member being held in its position of adjustment by the friction of a spring washer. The shoes are retracted by springs 52, 38, the movement of the spring 38 about the adjuster 48 being greater than the movement of the spring 52. The shoes are maintained against displacement by the friction of the adjusters 48 and of the anchor, and by friction of the shoes against ledges 54 on the back plate, the shoes being held against the ledges by the spring 38 which is deflected under the extension 56 of the anchor-reinforcement plate secured to the back plate. The ends of the shoe webs are received in slotted heads 60 of inserts in the pistons 34, and anchor 24 has an enlarged head 64 which positions the other ends of the webs. Either the anchoring ends of the shoes or the sides of the anchor 24 may be slightly curved to permit slight rocking of the shoes. Two adjacent anchors, one for each shoe, may be provided. In Fig. 6, the anchorreinforcement plate 56a is shaped to provide a ramp for the parking-brake operating cable 66 which is connected to a lever 68 pivoted at 70 on the shoe 18, a strut 72 connecting the lever with the shoe 16. Each shoe is adjusted by a shaft 74 carrying a cam 78 in contact with the rim of the shoe, locking being effected by a washer 80 having radial springy arms 82. Each arm 82 has a detent and the back plate is provided with corresponding depressions into which the detents click. A hexagon head 76 is provided for the adjusting tool. In a modification, the shoes abut on the edges of the anchor-reinforcement plate which is spot welded to the back plate and is provided with ears to prevent lateral movement of the shoes. Specification 487,252 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US580588XA | 1944-01-20 | 1944-01-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB580588A true GB580588A (en) | 1946-09-12 |
Family
ID=22014395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21013/44A Expired GB580588A (en) | 1944-01-20 | 1944-10-27 | Improvements in or relating to brakes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB580588A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2728418A (en) * | 1948-03-03 | 1955-12-27 | Bendix Aviat Corp | Brake |
DE1058859B (en) * | 1955-05-16 | 1959-06-04 | Bendix Aviat Corp | Brake, especially for motor vehicles |
-
1944
- 1944-10-27 GB GB21013/44A patent/GB580588A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2728418A (en) * | 1948-03-03 | 1955-12-27 | Bendix Aviat Corp | Brake |
DE1058859B (en) * | 1955-05-16 | 1959-06-04 | Bendix Aviat Corp | Brake, especially for motor vehicles |
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