Machine element or mechanism – Control lever and linkage systems – Hand operated
Patent
1975-03-10
1976-06-01
Scott, Samuel
Machine element or mechanism
Control lever and linkage systems
Hand operated
251294, F16C 110
Patent
active
039600327
ABSTRACT:
A modulator valve control assembly which is attached to an automatic transmission in an automotive vehicle to operate the modulator valve of the transmission in response to movement of the throttle linkage. The modulator valve modulates the shift point at which the transmission changes from one mode to another. The assembly includes a rectangular housing in which a bell crank lever is rotatably supported with one arm engaging a plunger which, in turn, is slidably disposed in a connection means for engaging the modulator valve of an automatic transmission. The other arm of the bell crank is connected through a helically coiled spring to a flexible core element of a motion transmitting remote control assembly which includes a conduit or guide means for slidably supporting the core element. The other end of the core element is attached to a threaded rod which, in turn, may be attached to the throttle linkage. The housing includes a stop against which the bell crank lever may be positioned as the core element is placed in tension to place the helically coiled spring in compression. The core element may move the bell crank against the stop and place the helically coiled spring in compression and a spacer is disposed between the guide or conduit and some portion of the core element to retain the core element in tension so that the assembly is preloaded. The assembly is then placed in connection with a transmission whereby the modulator valve places a force upon the plunger of the modulator control assembly to move the bell crank away from the stop and thereafter the connection means is tightened to prevent relative motion between the modulator assembly and the transmission housing so that the assembly is preloaded.
REFERENCES:
patent: 3885474 (1975-04-01), Brooke
McKenzie, Jr. Frank H.
Scott Samuel
Teleflex Incorporated
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