Locking and unlocking apparatus of engine hood door
AssigneeVolvo Construction Equipment Holding Sweden AB
InventorHan Shin
Life of this patent
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Abstract
In a locking and unlocking apparatus of an engine hood door, a stay is formed of a first arm and a second arm, with the stay being provided so as to fix a door of an engine hood in a fixed state. The first arm and the second arm are foldably connected to each other and pivotally connected to a frame and a door respectively. The lock of the first arm is automatically locked by a locking piece of the second arm at a portion in which the first arm and the second arm are arranged on a straight line for thereby maintaining an opened state of the door. The lock is unlocked from the locking piece with the locking piece being pulled by operation of a lever which is connected with the locking piece through a wire from a remote site, so that the door is closed.
Claims12
A locking and unlocking apparatus of an engine hood door, comprising:
- a frame which includes an opening at one side of the same and receives various parts including an engine therein;
- a door which is hinge-rotated about a hinge shaft at the frame for opening and closing the opening;
- a stay which includes:
- a first arm of which one side is pivotally connected to the frame by a first fixing joint, and the other side is rotatable;
- a second arm of which one side is foldably engaged with the other side of the first arm, and the other side is pivotally connected to the door by a second fixing joint, with the stay being foldable with respect to a foldable joint which connects the other side of the first arm and one side of the second arm;
- a fixing means which allows the door to be fixed at an inclined angle with respect to the hinge shaft when the door is opened, and maintains a fixed state of the stay so that the first arm and the second arm may not be folded;
- and
- an unlocking means which unlocks the fixed state of the stay when the door is closed.
Dependencies are inferred from the claim text.