Apparatus and method for extending door brake lifespan

摘要

The present disclosure includes a retrofitted door brake. The retrofitted door brake may, in various embodiments, comprise a hub comprising a cylindrical central axle, a plurality of projections extending radially away from an outer circumference of the central axle, and/or a cam comprising a plurality of pins that hold the projections away from a channel wall of a brake housing. The pins may be configured to break away from the cam to release the projections into contact with the channel wall, and the pins may be fitted with a cover, such that the pins are capable of withstanding abrasion and wear. The cover may comprise a cylinder having an axially running aperture, and/or a beveled edge that shaves a layer of the outer surface from one of the plurality of pins as it is fitted over the pin.

主权项

1. A retrofitted door brake comprising:
a brake housing; a hub disposed within the housing and comprising a cylindrical central axle; a plurality of projections extending radially away from an outer circumference of the central axle; and a cam operatively coupled to the hub, the cam comprising a plurality of pins extending laterally out of the cam towards the brake housing; a plurality of covers each operatively coupled to respective one of the plurality of pins; and wherein the plurality of pins hold the plurality of projections away from a channel wall of the brake housing, wherein the plurality of pins and covers are configured to break away from the cam to release the projections into contact with the channel wall, such that the plurality of pins and covers are capable of withstanding abrasion and wear.