Electric linear actuator

Details Electric linear actuator Electric linear actuator

2011-08-30

2011-08-30

Ridley, Richard W (Department: 3656)

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

C192S069620

Reexamination Certificate

active

08006579

ABSTRACT:
Provided is an electric linear actuator advantageous in downsizing and weight reduction. The electric linear actuator includes: a housing; a motor held by the housing; a nut member rotatably held with respect to the housing; a screw shaft threadedly engaged with the nut member; a drive shaft directly coupled with the motor; a rotation transmitting member rotatably supported about the drive shaft; a rotary driven member fixed to the nut member and rotated in accordance with the rotation transmitting member; a clutch member to which rotation of the drive shaft is transmitted, and which is provided so as to freely advance and retract in an axial direction of the drive shaft, and in which meshing with the rotation transmitting member is effected at an engagement position, and meshing with the rotation transmitting member is cancelled at a retraction position; and a setting lever capable of setting the clutch member to one of the advance position and the retraction position.

REFERENCES:
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patent: 2007-071357 (2007-03-01), None
European Search Report dated Sep. 17, 2009, issued in corresponding European Patent Application No. 09159592.6.

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