One-way and two-way brake auto-adjusters
US11078977B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 2018 |
| Grant date | Aug 3, 2021 |
| Priority date | — |
| Expiry date | Mar 16, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2125/64
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A brake assembly has an auto-adjustment mechanism including an adjusting link that is rotatable to adjust an unloaded state position of a brake shoe, and an adjusting lever that operates to rotate the adjusting link during a release of the braking assembly to adjust the unloaded state position of the brake shoe. The auto-adjustment mechanism includes a pivot point mounted on a brake back plate about which the adjusting lever rotates, and an adjusting spring attached to the adjusting lever. The adjusting lever rotates in a first direction against the spring force when the brake assembly is actuated, and the adjusting spring by operation of the spring force rotates the adjusting lever in a second direction when the brake assembly is released. During the brake release, as the adjusting lever rotates back the adjusting lever catches the adjusting link in a ratchet fashion to rotate the adjusting link to adjust the unloaded state position of the brake shoes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.