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US 11,002,046 B2Granted
High offset hook latch
AssigneeHartwell Corporation
InventorsSimon Jeongwoo Kim, Bo Dumitru Artin
Life of this patent
Estimating the term…
Abstract
A latch mechanism includes a hook, a displaceable handle, and links connected between the handle and hook for the operation of the latch mechanism. The handle and links cooperate with the hook to hold the latch mechanism in a locked position.
Claims19
A latch mechanism comprising:
- a hook including a hook body and a hook end coupled to the hook body,
- a handle coupled to the hook body for rotation relative to the hook body about a first axis between a closed position where the handle extends along the hook and an opened position where the handle is spaced apart from the hook end,
- a linkage, and
- a bushing configured to allow mounting of the latch mechanism on a structure and to allow rotation of the latch mechanism relative to the structure about a second axis spaced apart from the first axis,
- wherein the linkage includes a load link and an auxiliary link, the load link is coupled to the mounting bushing and to the hook body for rotation relative to the hook body about a third axis spaced apart from the first and second rotation axes, the hook body is formed to define an arcuate slot, the bushing extends into the arcuate slot and is configured to move along the arcuate slot around the third axis with the load link, the auxiliary link is coupled to the mounting bushing and to the handle, and the handle is configured to engage with the auxiliary link to move the mounting bushing and rotate the load link for extension and retraction of the hook end relative to the second axis.
2 more elements
A latch mechanism for retaining a first structure against a second structure, the latch mechanism comprising:
- a hook including a hook body and a hook end coupled to the hook body, the hook end configured to engage with a keeper of the first structure,
- a handle coupled to the hook body for rotation relative to the hook body about a first axis between a closed position where the handle extends along the hook and an opened position where the handle is spaced apart from the hook end,
- a linkage, and
- a bushing configured to allow mounting of the latch mechanism on the second structure and to allow rotation of the latch mechanism relative to the second structure about a second axis spaced apart from the first axis,
- wherein the linkage includes a load link and an auxiliary link, the load link is coupled to the mounting bushing and to the hook body for rotation relative to the hook body about a third axis spaced apart from the first and second rotation axes, the hook body is formed to define an arcuate slot, the bushing extends into the arcuate slot and is configured to move along the arcuate slot around the third axis with the load link, the auxiliary link is coupled to the mounting bushing and to the handle, and the handle is configured to engage with the auxiliary link to move the mounting bushing and rotate the load link for extension and retraction of the hook end relative to the second axis.
2 more elements
Dependencies are inferred from the claim text.