Carriage drive means using cables or the like
US4484485A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 1981 |
| Grant date | Nov 27, 1984 |
| Priority date | — |
| Expiry date | Oct 9, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18848
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Carriage drive means having cables or belts for transmitting drive force and a spring for tensioning the cables or the belts. A rigid member interposed between the spring and the cable or belt, the rigid member constituting a self-locking mechanism which allows the member to move, when elongation occurs in the cable or belt, to a position in which the elongation is absorbed by the tension of the spring, but does not allow same to move in a direction in which it is restored to its original position. In the aforesaid self-locking mechanism, the rigid member may be in the form of a segmental cam which engages with suitable friction the shaft of a pulley mounted for movement while having the cable wound thereon, or the rigid member may engage with suitable friction a pivotal member for supporting in a position remote from the pivot the pulley having the cable wound thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.