Door Latch Mechanism System for Vehicle
A system may include a door installed within a vehicle. The door may include a latch mechanism configured to latch or unlatch the door, wherein the latch mechanism is positionable in a latched position, a neutral position, and an unlatched position. The latch mechanism may include: a handle; a rotatable plate coupled to the handle, the rotatable plate configured to be rotated by the handle; and an extension rod. The rotatable plate may be configured to convert a rotational movement of the handle to linearly move the extension rod causing the door to be latched or unlatched.
1 . A system, comprising:
a door installed within a vehicle, the door comprising:
a latch mechanism configured to latch or unlatch the door, wherein the latch mechanism is positionable in a latched position, a neutral position, and an unlatched position, wherein the latch mechanism comprises:
a handle;
a rotatable plate coupled to the handle, the rotatable plate configured to be rotated by the handle; and
an extension rod,
wherein the rotatable plate is configured to convert a rotational movement of the handle to linearly move the extension rod causing the door to be latched or unlatched.
2 . The system of claim 1 , wherein the door is an oven door.
3 . The system of claim 2 , wherein the vehicle is an aircraft.
4 . The system of claim 1 , wherein the latch mechanism further comprises a compression spring, wherein the extension rod passes through the compression spring, wherein the compression spring is configured to maintain the neutral position by accumulating energy when the latch mechanism is in an unlatched or latched state and by returning that energy when the latch mechanism is reversed.
5 . The system of claim 4 , wherein the rotatable plate includes a curved channel, wherein the extension rod has a roller bearing, the roller bearing configured to travel in the curved channel when the latch mechanism changes from one of the latched position, the neutral position, and the unlatched position.
6 . The system of claim 5 , wherein the rotatable plate includes spring plungers.
7 . The system of claim 6 , wherein the latch mechanism further comprises an end piece connected to the extension rod, wherein the end piece includes a slide bearing and a roller, the roller positioned at a tip of the end piece.
8 . The system of claim 7 , wherein the rotatable plate is partially circular.
9 . The system of claim 7 , wherein the door further comprises a sensor pin and a sensor, the sensor configured to determine whether the latch mechanism is latched based on a detection of the sensor pin.
10 . The system of claim 9 , wherein the latch mechanism further comprises a second extension rod.
11 . The system of claim 1 , wherein the door further comprises a manually operated secondary latch mechanism configured to latch or unlatch the door.
12 . The system of claim 11 , wherein the secondary latch mechanism comprises a secondary latch button, a lever, an extension rod, a slide bearing, and an end piece.
13 . The system of claim 12 , wherein the secondary latch mechanism is configured to be manually operated by moving the secondary latch button, wherein movement of the secondary latch button is configured to be transferred by the lever to the extension rod by the lever swiveling around a rotation point such that the secondary latch mechanism latches or unlatches.
14 . The system of claim 13 , wherein the secondary latch mechanism further comprises a spring plunger connected to the lever and configured to maintain a state of the secondary latch mechanism.
15 . The system of claim 14 , wherein the extension rod is configured to transfer rotational movement of the lever into a vertical movement of the end piece.