Automatic brake slack adjuster

Details Automatic brake slack adjuster Automatic brake slack adjuster

B - Operations, Transporting

60

T

188/209

B60T 1/00 (2006.01) F16D 65/14 (2006.01)

Patent

CA 1267369

ABSTRACT OF THE DISCLOSURE An automatic slack adjuster (60) employs a drive member (22) having a helical groove (28) into which a pin (42) extends from a fixed frame (10) to transfer a rotational torque to a reaction member (30) secured to an adjustment nut member (12) for rotating and enabling nut member (12) upon application of the brake to advance a thrust member (2) threadingly engaged with nut member (12) a distance sufficient to maintain a substantially constant clearance between a frictional layer (5) and a surface (6) to be braked. An engagement means such as frictional layer (33) is disposed between drive member (22) and reaction member (30) and groove 28 is provided with an inclination angle (.theta.) such that the combination enables slippage to occur between members (22) and (30) upon engagement between surface (6) and frictional layer (5).

520742

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