GB605309A - Brake actuator - Google Patents

Brake actuator

Info

Publication number
GB605309A
GB605309A GB34489/45A GB3448945A GB605309A GB 605309 A GB605309 A GB 605309A GB 34489/45 A GB34489/45 A GB 34489/45A GB 3448945 A GB3448945 A GB 3448945A GB 605309 A GB605309 A GB 605309A
Authority
GB
United Kingdom
Prior art keywords
rollers
shaft
cam
plungers
slidable
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
Application number
GB34489/45A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bendix Aviation Corp
Original Assignee
Bendix Aviation Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bendix Aviation Corp filed Critical Bendix Aviation Corp
Publication of GB605309A publication Critical patent/GB605309A/en
Expired legal-status Critical Current

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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/22—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum brakes
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/14—Mechanical
    • 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
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
    • F16D2125/28—Cams; Levers with cams
    • F16D2125/30—Cams; Levers with cams acting on two or more cam followers, e.g. S-cams

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

605,309. Cams and tappets. BENDIX AVIATION CORPORATION. Dec. 20, 1945, No. 34489. Convention date, Feb. 10. [Class 80 (iii)] [Also in Group XXXIV] In expanders for the shoes of drum brakes comprising an elongated floating cam, which is slidable in a slot in a rotatable actuating shaft, the sides of the cam bear against anti-friction rollers mounted in the shaft. In one form, Figs. 2 and 3, a pair of shoes are applied by or anchor on plungers 24 slidable in bores 22 in a casing 16 bolted to a fixed part of the brake. The ends of the plungers are engaged by the curved end surfaces 42, 44, preferably formed as involutes, of a cam 40 which is slidable on rollers 46, 48, in an inclined slot 38 formed in an enlarged portion of the actuating shaft 28. The rollers have reduced end portions 50 journalled in bores 51 in the shaft and in bushes 52 which are pressed in after the rollers have been inserted. The shaft 28 is provided with needle bearings 34 and a spigot bearing 32, and is formed with splines 36 to receive a lever arm operated by a pneumatic or hydraulic cylinder or by mechanical linkage. The casing is filled with lubricant and provided with a breather 62 of porous material, Fig. 1 (not shown). In a modification, Figs. 4-6 (not shown), the cam surfaces engage rollers mounted on the plungers, and the end portions of the rollers 46, 48 are mounted in needle bearings.
GB34489/45A 1945-02-10 1945-12-20 Brake actuator Expired GB605309A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US605309XA 1945-02-10 1945-02-10

Publications (1)

Publication Number Publication Date
GB605309A true GB605309A (en) 1948-07-20

Family

ID=22030076

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34489/45A Expired GB605309A (en) 1945-02-10 1945-12-20 Brake actuator

Country Status (2)

Country Link
BE (1) BE605309A (en)
GB (1) GB605309A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1030635B (en) * 1953-05-12 1958-05-22 Brueninghaus Gmbh Stahlwerke Spreading device for inner brake shoes
GB2121871A (en) * 1982-03-30 1984-01-04 Duk Dan Heung A motor system of door closer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1030635B (en) * 1953-05-12 1958-05-22 Brueninghaus Gmbh Stahlwerke Spreading device for inner brake shoes
GB2121871A (en) * 1982-03-30 1984-01-04 Duk Dan Heung A motor system of door closer

Also Published As

Publication number Publication date
BE605309A (en) 1961-12-27

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