F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
310/46, 74/59
F16H 19/00 (2006.01) B60T 8/18 (2006.01) B60T 13/74 (2006.01) F16D 65/14 (2006.01) F16H 35/10 (2006.01) G05D 17/00 (2006.01) F16D 66/00 (2006.01)
Patent
CA 1230988
Abstract: An electric actuator having an electric motor operable to determine the output force generated on an output member by a spring; a drive shaft arranged to be driven by the electric motor and having first and second drive means, a non-rotational but axially movable intermediate member which is threadedly engaged with first driven means arranged to be driven by the first drive means; the spring being located between the intermediate member and the output member and arranged so that axial movement of the intermediate member is transmitted to the output member so long as the latter is free to move and, when the output member is restrained from movement, generates the output force on the output member upon continued operation of the electric motor; a stop carried by the intermediate member and positionally adjustable with respect thereto in the direction in which the intermediate member is axially movable, and second driven means with the second drive means, the first driven means being engageable with the stop to arrest its rotation and, hence, through the second drive means, to arrest further operation of the electric motor in its direction to increase the output force generated on the output member.
480464
Gowling Lafleur Henderson Llp
Westinghouse Brake And Signal Company Limited
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