Carriage drive means using cables or the like

Details Carriage drive means using cables or the like Carriage drive means using cables or the like

1981-10-09

1984-11-27

Murtagh, John E.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

400322, 474117, 474135, 474138, F16H 2902, F16H 714, B41J 1930

Patent

active

044844859

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.

REFERENCES:
patent: 2612988 (1952-10-01), Andrews
patent: 3285085 (1966-11-01), Graham
patent: 3631734 (1972-01-01), Wagner
patent: 3642109 (1972-02-01), Cappotto et al.
patent: 4060149 (1977-11-01), Henley
patent: 4116568 (1978-09-01), Suzuki et al.
patent: 4298342 (1981-11-01), Clayton et al.

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