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US 2019/0218837 A1Published application
Pin latch with adjustable pre-load
AssigneeHartwell Corporation
InventorsBrody Wayne Collins, Bo D. Artin
Life of this patent
Estimating the term…
Abstract
A latch mechanism includes a handle connected to a pin by a linkage. The linkage converts rotation of the handle relative to a frame into axial movement of the pin between extended and retracted positions relative to the frame.
Claims19
A latch mechanism comprising:
- a frame;
- a handle coupled to the frame for rotation relative to the frame;
- a linkage coupled to the handle and the frame;
- a pin coupled to the linkage;
- and
- a pre-load adjustment mechanism coupled to the frame,
- wherein the linkage is configured to convert rotation of the handle into axial movement of the pin between an extended position and a retracted position, and the pre-load adjustment mechanism is configured to engage with the pin in the extended position to place a pre-load through the linkage to bias the linkage toward an over-center configuration and bias the pin toward the extended position.
4 more elements
A latch mechanism for selectively blocking movement of a first component relative to a second component, the latch mechanism comprising:
- a frame coupled to the first component for movement therewith;
- a handle coupled to the frame for rotation relative to the frame;
- a linkage coupled to the handle and the frame;
- a pin coupled to the linkage;
- and
- a pre-load adjustment mechanism coupled to the frame,
- wherein the linkage is configured to convert rotation of the handle into axial movement of the pin between an extended position and a retracted position, the pin engages with the first and second components in the extended position to block movement of the first component relative to the second component and is spaced apart from the second component in the retracted position to allow movement of the first component relative to the second component, and the pre-load adjustment mechanism is configured to engage with the pin in the extended position to place a pre-load through the linkage to bias the linkage toward an over-center configuration and bias the pin toward the extended position.
4 more elements
A latch mechanism comprising:
- a frame;
- a handle coupled to the frame for rotation relative to the frame;
- a linkage coupled to the handle and the frame;
- a pin coupled to the linkage;
- a pre-load adjustment mechanism coupled to the frame, the pre-load adjustment mechanism including a mount coupled to the frame and a collar coupled to the mount;
- and
- a pin-travel guide including a slider coupled to the pin and a slot formed in the frame, the slider extending into the slot,
- wherein the linkage is configured to convert rotation of the handle into axial movement of the pin between an extended position and a retracted position, the pin-travel guide is configured to support the pin against skewing relative to the frame during movement between the extended and retracted positions, a shaft of the pin is sized to extend through the mount and the collar and a flange coupled to the shaft is sized to block the pin from passing completely through the collar, the pre-load adjustment mechanism is configured to engage with the pin in the extended position to place a pre-load through the linkage to bias the linkage toward an over-center configuration and bias the pin toward the extended position, and the collar is movable relative to the mount at the selection of a user to adjust an amount of pre-load through the linkage.
5 more elements
Dependencies are inferred from the claim text.