Lock actuator
AssigneeKeeler Brass Company
InventorCarl H. Little
Life of this patent
Estimating the term…
Abstract
An actuator assembly for converting linear movement to rotational movement for operating a lock assembly for locking and unlocking doors and the like. The assembly includes an axially shiftable shaft, a rotatable member associated with the shaft alternately rotatable in clockwise and counterclockwise directions with axial movement of the shaft, and cam and cam follower means for reversing the direction of the rotational movement of the rotatable member after each cycle of axial movement of the shaft.
Claims17
An actuator assembly for converting linear movement to alternating rotational movement comprising:
- a shaft member;
- means mounting said shaft member for movement along its linear axis;
- means for moving said shaft member between first and second positions along said linear axis;
- a rotatable member mounted for rotation about an axis generally perpendicular to said linear axis;
- engaging means associated with said shaft member and said rotatable member for rotating said rotatable member to produce alternating rotation in a first direction and in the opposite direction with linear movement of said shaft member between said first and second positions, said engaging means including a follower member shiftable between first and second operating positions, said follower member including a pin member on said shaft member slidably mounted for movement transverse to said linear axis, said rotatable member having a pair of abutment members thereon positioned on opposite sides of said shaft for engagement with said pin member;
- means for shifting said follower member from said first operating position to said second operating position with movement of said shaft member between said first and second positions, said shifting means including a pair of arm members pivotally mounted on said mounting means for movement about axes perpendicular to said linear axis;
- and
- first cam means on said rotatable member engageable with said arm members to alternately pivot said arm members into engagement with said pin member to urge said pin member into a position for engagement with one of said pair of abutment members with movement of said shaft between said first and second positions, said follower member in said first operating position urging said rotatable member to rotate in said first direction and in said second operating position urging said rotatable member to rotate in the opposite direction.
An actuator assembly for converting linear movement to rotational movement comprising an elongated first member;
- means for producing linear movement of said first member in both axial directions;
- rotatable means associated with said first member;
- engaging means on said first member engagable with said rotatable member to produce alternating clockwise and counterclockwise rotational movement thereof;
- said rotatable means having a pair of abutment members thereon located on each side of said first member with said first member being mounted for relative movement therebetween;
- said engaging means including a follower pin extending through a transverse bore in said first member;
- and means for alternately shifting said follower pin to extend alternately from opposite sides of said first member so as to alternately engage said abutment members to cause said alternating clockwise and counterclockwise rotation of said rotatable means after each cycle of axial movement of said first member.
In combination with a locking mechanism including a movable lock activating element, an actuator assembly for converting linear movement to rotational movement so as to move said lock activating element between locked and unlocked positions, said assembly comprising:
- a first member;
- means for producing linear movement of said first member in both axial directions;
- a second member mounted for rotation about an axis perpendicular to the axis of movement of said first member;
- engaging means associated with said first member to produce alternating clockwise and counterclockwise rotational movement of said second member;
- means for alternating the direction of said rotational movement of said second member after each cycle of linear movement of said first member;
- said second member including abutment members located adjacent said first member on opposite sides of said axis of movement with said first member being mounted for linear movement between said abutment members;
- a follower pin extending through a transverse bore in said first member so as to alternately engage said abutment members to cause said alternating clockwise and counterclockwise rotation of said second member as said first member moves linearly through said cycles of movement.
Dependencies are inferred from the claim text.