F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
188/197
F16D 65/56 (2006.01) F16D 51/20 (2006.01) F16D 51/48 (2006.01)
Patent
CA 1062179
ABSTRACT OF THE DISCLOSURE: Internal shoe drum brake comprises a pair of brake shoes, a return spring means, a service brake, a manually actuated auxiliary brake including an actuating lever with a finger and an adjustable, in length, strut. The latter includes relati- vely rotatable screw threaded parts, i.e., a screw-threaded spindle slidably received in a tube member, a ratchet wheel in threaded engagement with the spindle and stopper held in yielding contact with the wheel, so that the strut is adjustable in length to adjust shoe clearances, a pivoted adjusting lever with a pawl tooth for effecting rotation of the ratchet wheel relative to the spindle upon brake application by the auxiliary brake, and a prestressed coil torsion spring arranged to transmit forces to urge the adjusting lever in a direction to effect shoe clearance adjustment as required in response to operation of the auxiliary brake.
272766
Hoshino Kazuo
Tanbara Masakazu
LandOfFree
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