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US 5,639,130 AGranted
Rotary door cinching mechanism with manual override
AssigneeGeneral Motors Corporation
InventorsLloyd Walker Rogers, Jr., John Ion Moceanu, Robert Wayne Baughman
Life of this patent
Estimating the term…
Abstract
A cinching mechanism for interaction with a substantially conventional latch assembly includes a cinching gear selectively power driven by an actuator and includes a link between the cinching mechanism and the latch assembly providing a means of manually releasing the cinching mechanism to permit the latch assembly to open regardless of the condition of the cinching mechanism.
Claims7
A cinching mechanism for providing automatic operation of a latch assembly comprising:
- a cinching gear rotatable about a shaft and operatively interacting with the latch assembly and including a notch radially spaced away from the shaft;
- an actuator pivotably coaxially mounted with the cinching gear about the shaft and including an integral extension and an opening radially spaced away from the shaft;
- a pin fixed within the opening of the actuator and extending therefrom;
- a pawl pivotally mounted on the pin and including a cam surface selectively engaging the notch of the cinching gear to rotate the cinching gear in concert with the actuator and selectively disengaging from the notch to permit relative rotation between the cinching gear and the actuator wherein the pawl additionally operates to lock the cinching gear in a latched position by engaging the notch in the cinching gear;
- and
- a plurality of switches interacting with the cinching gear and the extension of the actuator.
3 more elements
A cinching mechanism in combination with a latch assembly comprising:
- a forkbolt pivotably mounted in the latch assembly having a gear section and a primary detent;
- a detent lever engageable with the primary detent and operable to lock the forkbolt from rotating;
- an operating lever pivotably mounted in the latch assembly;
- an intermediate lever engageable with the operating lever;
- a cinching gear operatively interacting with the gear section of the forkbolt and including a notch;
- an actuator pivotably coaxially mounted with the cinching gear including a top plate with a circular portion having a first face, a base plate having a lobed portion with an elongated opening having an internal second face and an integral extension on the lobed portion with a circular opening extending through the top plate and the base plate;
- a pin fixed within the circular opening of the actuator and extending therefrom;
- a pawl pivotally mounted on the pin and including a cam surface selectively engaging the notch of the cinching gear;
- a spring mounted on the pin and biasing the cam surface toward the cinching gear;
- a first link fixedly engaging the detent lever and selectively engaging the intermediate lever;
- a second link having a first segment engageable with the first face of the actuator and a second segment engageable with the second face of the actuator;
- a first and a second switch interacting with the cinching gear;
- and
- a third switch interacting with the extension of the actuator.
11 more elements
Dependencies are inferred from the claim text.