Delay latch for a door
AssigneeAdams Rite Aerospace, Inc.
InventorMorteza Yadollahi
Life of this patent
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Abstract
Provided is a latch assembly for a door. The latch assembly includes a housing defining a cavity, a handle movable relative to the housing, a latch disposed in the cavity, the latch having bolt movable between a locked and an unlocked position and a damping mechanism for delaying movement of the latch, wherein the handle is biased in a first position abutting the bolt to hold the bolt in the locked position, and the handle is movable to a second position away from the bolt allowing for movement of the bolt to the unlocked position.
Claims14
A latch assembly including:
- a housing defining a cavity and including a projection in the cavity;
- a handle movable relative to the housing;
- a latch disposed in the cavity, the latch having a bolt movable between a locked and an unlocked position and a damping mechanism for delaying movement of the bolt from the locked position to the unlocked position for a predetermined amount of time;
- a cam shaft including a cam arm, a pinion portion, and a hook;
- and
- a rack coupled to a wheel by a pin to roll on the surface of the latch,
- wherein the handle is biased in a first position abutting the bolt to hold the bolt in the locked position, and the handle is movable to a second position away from the bolt allowing for movement of the bolt to the unlocked position.
A latch assembly for delaying opening of a door in an aircraft, the latch assembly including:
- a housing defining a cavity;
- a latch disposed in the cavity, the latch having a bolt movable between a locked and an unlocked position and a damping mechanism for delaying movement of the bolt from the locked position to the unlocked position;
- and
- a handle assembly including at least one handle, a rack disposed in the cavity, and a cam shaft movable with the handle, the cam shaft including a pinion portion that engages the rack,
- wherein the handle is movable from a first position holding the bolt in the locked position to a second position allowing for movement of the bolt to the unlocked position to allow for opening of the door.
A latch assembly including:
- a housing defining a cavity and including a projection in the cavity;
- a handle assembly including a handle movable relative to the housing and a cam shaft, the cam shaft including a cam arm, a pinion portion, and a hook;
- and
- a latch disposed in the cavity, the latch having a timing block positioned in the cavity, a bolt positioned in the cavity surrounding the timing block and being movable between a locked and an unlocked position, a damping mechanism abutting the timing block and extending through the projection of the housing for delaying movement of the bolt, and a resilient member seated against the projection and the timing block, the timing block including a timing block body, a first opening that receives the damping mechanism and the resilient member, a timing block projection extending from a bottom of the timing block body through the bottom of a bolt for engaging with the cam arm on the handle assembly, an second opening that aligns with the bolt, and a third opening that aligns with the housing,
- wherein the handle is biased in a first position abutting the bolt to hold the bolt in the locked position, and the handle is movable to a second position away from the bolt allowing for movement of the bolt to the unlocked position.
Dependencies are inferred from the claim text.