Status indicator for a lock
First Claim
1. A status indicator for a lock comprising a body and a shackle coupled with the body from outside, the body having a window formed on the surface to indicate conditions, the body including:
- an indicator marked with identified notations having a first indication position and a second indication position corresponding to the window, and coupling with a returning elastic element to maintain the indicator at the first indication position in a normal condition;
a brake bolt coupled with a ramming elastic element being in contact with the indicator in the normal condition to latch the indicator;
a first locking unit forming an unlocking position and a locking position relative to the body through operations, the indicator being driven concurrently when the first locking unit is moved from the locking position to the unlocking position so that the indicator is moved from the first indication position to the second indication position and latched by the brake bolt; and
a second locking unit switchable to the unlocking state and the locking state through operations, the brake bolt releasing the latch condition on the indicator in the unlocking state to allow the indicator to return from the second indication position to the first indication position.
1 Assignment
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Accused Products
Abstract
A status indicator for a lock includes two locking units that operate independently, to execute locking and unlocking operations. The lock has a body, which contains an indicator and a brake bolt. The indicator is latched by the brake bolt to remain at a selected indication position. When one locking unit executes the unlocking operation, the indicator is driven concurrently to switch to another indication position corresponding to a window, and is latched by the brake bolt without returning. The brake bolt can only release the latch condition on the indicator through the unlocking operation of another locking unit. Likewise, the indicator returns to the original indication position. Thus through the window formed on the body surface, the indication position of the indicator may be recognized.
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Citations
13 Claims
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1. A status indicator for a lock comprising a body and a shackle coupled with the body from outside, the body having a window formed on the surface to indicate conditions, the body including:
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an indicator marked with identified notations having a first indication position and a second indication position corresponding to the window, and coupling with a returning elastic element to maintain the indicator at the first indication position in a normal condition;
a brake bolt coupled with a ramming elastic element being in contact with the indicator in the normal condition to latch the indicator;
a first locking unit forming an unlocking position and a locking position relative to the body through operations, the indicator being driven concurrently when the first locking unit is moved from the locking position to the unlocking position so that the indicator is moved from the first indication position to the second indication position and latched by the brake bolt; and
a second locking unit switchable to the unlocking state and the locking state through operations, the brake bolt releasing the latch condition on the indicator in the unlocking state to allow the indicator to return from the second indication position to the first indication position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification