Compact electric asymmetry brake
US6196361A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 1996 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Feb 16, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18704
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved braking apparatus having a jaw type clutch coupled to an electrical solenoid through a ball spline mechanism provides significantly greater braking capacity in a given volume than other types of braking devices. The ball spline is configured to significantly reduce the internal friction load which the electrical solenoid must overcome to apply or release the brake, resulting in a smaller physical size and current draw of the solenoid. The jaw clutch and ball spline are also configured to reduce or absorb shock loads on various internal components of the braking apparatus when the brake is engaged. By configuring the ball spline and jaw clutch to function as shock absorbers in addition to performing their primary functions, the need for separate elastomeric shock absorbers, etc., is eliminated. The electrical solenoid utilizes a pair of strategically shaped and located conical surfaces on the plunger and electromagnetic core of the solenoid to provide an optimal balance between actuation force, stroke, and current draw, by placing the conical surfaces in such a manner that both the primary magnetic flux and the leakage flux generated by the electromagnetic coils combine …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.