192 clutches and power-stop control – Clutches – Operators
Patent
1989-03-17
1989-12-19
Braun, Leslie A.
192 clutches and power-stop control
Clutches
Operators
192 84C, 235 95R, 235 96, F16D 2710, G01C 2200
Patent
active
048877042
ABSTRACT:
For use with an overland motor vehicle including therewithin a traversal-recording odometer that is actuatably connectable to the vehicular transmission, there is disclosed an odometer disabling system for disabling the odometer during time periods when the motor vehicle is being towed and during which it is inappropriate to record overland traversal of the towed vehicle.
There is a novel electrically-disengageable spring-actuated clutch intervening between the vehicular odometer and transmission and co-acting with and along the flexible-shaft connection between the odometer and transmission. The clutch has the capability of maintaining the traversal-recording integrity of the odometer only so long as electrical current is not being fed into the electrically powerable coil of the clutch.
Included within the clutch housing are: a rear-spindle having a fore-length in keyed relationship with a rearward portion of a magnetically-permeable tubular mover; a front-spindle freely rotatably extending into a forward portion of the tubular mover; a friction disc which at opposite sides thereof faces the tubular mover and a shouldered pressure cup; an appropriately configured spring whose pressure tends to tightly sandwich the friction disc between the tubular mover and pressure cup and whereby torque applied to the front-spindle causes rotation of the rear-spindle; and an electrically powerable coil which, when energized, overcomes the spring pressure at the friction disc and whereby torque applied to the front-spindle cannot cause rear-spindle rotation.
REFERENCES:
patent: 986299 (1911-03-01), Lindemann et al.
patent: 1081934 (1913-12-01), Wessoleck
patent: 2159915 (1939-05-01), Van Wagenen
patent: 2722303 (1955-11-01), Utz
Braun Leslie A.
Lorence Richard M.
Nimmer George R.
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