Synchronized clutch

192 clutches and power-stop control – Clutches – Progressive engagement

Patent

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Details

192 485, 192 487, 192105C, F16D 2304, F16D 2310, F16D 4324

Patent

active

053337123

ABSTRACT:
A synchronized clutch for coupling a driven element to a drive element includes an externally activated nonpositive coupling, and a positive coupling which engages automatically when the driven element achieves a designated operational state. The nonpositive coupling, preferably comprising at least one friction element permitting some slippage between the drive and driven elements, accelerates the driven element to a velocity which at least approaches synchronization of the drive and driven elements. The positive coupling preferably comprises a sliding drive ring which is responsive to centrifugal weights to positively couple the drive and driven elements at a designated velocity. The external forces actuating the nonpositive coupling are preferably applied manually through a lever. Provision is preferably made for the automatic disengagement of the clutch when the velocity of the driven element decreases below a designated velocity.

REFERENCES:
patent: 1250687 (1917-12-01), Smith
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patent: 1739946 (1929-12-01), Carhart
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patent: 3547241 (1970-12-01), Tungate
patent: 3587799 (1971-06-01), Chamberland
patent: 4131185 (1978-12-01), Schall
patent: 4555003 (1985-11-01), Phillips

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