Mechanism for the automatic spooling of safety belts
US4249709A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 1979 |
| Grant date | Feb 10, 1981 |
| Priority date | — |
| Expiry date | May 16, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/4493
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A mechanism for the automatic respooling of safety belts including a belt spindle rotatable in a housing and including a roll-up spring tensioned by the pull out of the belt and engaged by the belt spindle, and a friction brake relieving the belt pull back force. The friction brake including a first friction element connected to the belt spindle and a second friction element rotatably mounted and continuously in frictional engagement with the first friction element, and wherein the second friction element is fixed in angular relationship on the housing by means of a stop lever. The apparatus further comprises an automatically-functioning two-arm stop lever having a slot which is disposed about a pivot pin attached to said housing and said lever is pivoted on said pin and displaced or movable along said slot. A spring engaging the two-arm lever in such a way that the point of contact of the spring, upon sliding of the lever from the one side of the pivot pin, moves to the other side and thereby selectively one of the two arms of the lever is engageable with the circumference of the second friction element, and on the circumference of the second friction element at least one cam is p…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.