Machine element or mechanism – Control lever and linkage systems – Hand operated
Patent
1981-11-30
1984-08-14
Braun, Leslie A.
Machine element or mechanism
Control lever and linkage systems
Hand operated
F16C 110
Patent
active
044649509
ABSTRACT:
The invention relates to a mechanical control by cable (10) sliding axially in a flexible sheath (12), equipped with an automatic adjustment device (40) for varying the length of the sheath as a function of the clearances appearing in the control, and of which one end (28) is connected to a receiving member (30) provided with elastic return means (36).
According to the invention, the adjustment device (40) includes two telescopic sheath extensions (43,44) inserted between two consecutive portions (41,42) of the sheath to which they are fixed, a wedge-action locking member (62) disposed between the two sheath extensions (43,44) to interlock the latter by wedging during actuation of the mechanical control, and a control member (80) fixed to the locking member (62) and connected to the cable (10) by means of a friction connection (84,11), the control member (80) being entrained, during actuation of the control, in axial translation by the cable (10) in the direction corresponding to wedging of the locking member until the sheath extensions (43,44) are interlocked, the control member being entrained in axial translation by the cable in the direction corresponding to unlocking when the return force applied to the cable becomes less than a predetermined value.
REFERENCES:
patent: 2957354 (1960-10-01), Morrow
patent: 3587341 (1971-06-01), Fiddler
patent: 3605520 (1971-09-01), Lorentz et al.
Braun Leslie A.
Decker Ken C.
McKenzie Frank
Schoenle Paul D.
Societe Anonyme D.B.A.
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