Brake system
US7124858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2002 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | Feb 15, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B5/0438
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An object of the invention is to provide a brake apparatus which can facilitate slope starting and slope climbing and which can be produced small in size and light in weight. In addition, another object of the invention is to provide a brake apparatus which can obtain a stable brake force under any conditions including running in the rain.The invention provides a brake apparatus in which a restriction is imposed on the rotation of a wheel (101) via a brake drum (3) provided on a rotational shaft of the wheel (101) so as to rotate together with the rotational shaft, the brake apparatus being characterized by comprising a brake shoe (30) for imposing a restriction on the rotation of the brake drum (3) in a forward or backward direction through wedge engagement with an inner circumferential surface of the brake drum (3) when the brake drum (3) rotates either in the forward direction or in the backward.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.