Machine element or mechanism – Control lever and linkage systems – Hand operated
Patent
1987-03-09
1989-03-21
Moore, Richard E.
Machine element or mechanism
Control lever and linkage systems
Hand operated
745005, 74505, 74506, 43352, 43360, 242 54R, 254365, F16C 110
Patent
active
048133043
ABSTRACT:
A mechanism for automatically regulating tension of wires employed in a window regulator comprising a drum being provided for rotational movement within said housing, and having a first side surface provided with a first ratchet teeth, a second side surface provided with a first engaging portion for engaging a first wire end, and a peripheral surface as winding surface; a ratchet plate being adjacent to said drum coaxially, and having a surface provided with a second ratchet teeth engaging said first ratchet teeth and a second engaging portion engaging a second wire end; a spiral spring having one end engaged with said ratchet plate and having the other end engaged with said housing, and urging said ratchet plate is such direction that said first ratchet teeth and said second ratchet teeth are moved idly; an elastic member axially urging said drum toward said ratchet plate; and a shaft for operating said drum to rotate by means of engaging with said drum. The mechanism can employ a spiral spring having a larger diameter, and therefore, functions of regulating tension of wires and of balancing the force for raising a window glass with the force for lowering the window glass operate smoothly.
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Luong Vinh
Moore Richard E.
Nippon Cable System Inc.
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