Combination lock having a second lock mechanism
First Claim
Patent Images
1. A combination lock having a second lock mechanism comprising:
- a lock body comprising at least a push-button and a lock tongue in relation with each other, the lock tongue having a locking position and a releasing position;
a stopping member, positioned in the lock body, having a first position for constraining the lock tongue in the locking position and a second position for releasing constraint of the lock tongue;
a first lock mechanism comprising a plurality of dials and a shifting plate installed in the lock body, the shifting plate and the dials moving correspondingly, the shifting plate having a clamping position for constraining the stopping member to remain in the first position and a unlocking position for releasing the stopping member from being constrained; and
a second lock mechanism comprising a sleeve and a linking member installed in the lock body and in relation with each other, the sleeve having a keyhole for allowing a key to be inserted and for being rotated by the key such that the linking member is shifted and forces the stopping member to change positions.
1 Assignment
0 Petitions
Accused Products
Abstract
A combination lock having a combination lock mechanism and a key lock mechanism. The combination lock mechanism is able to unlock and lock the combination lock by switching a plurality of dials exposed on the surface of the combination lock, while the key lock mechanism allows the user to unlock the combination lock with a key.
-
Citations
15 Claims
-
1. A combination lock having a second lock mechanism comprising:
-
a lock body comprising at least a push-button and a lock tongue in relation with each other, the lock tongue having a locking position and a releasing position; a stopping member, positioned in the lock body, having a first position for constraining the lock tongue in the locking position and a second position for releasing constraint of the lock tongue; a first lock mechanism comprising a plurality of dials and a shifting plate installed in the lock body, the shifting plate and the dials moving correspondingly, the shifting plate having a clamping position for constraining the stopping member to remain in the first position and a unlocking position for releasing the stopping member from being constrained; and a second lock mechanism comprising a sleeve and a linking member installed in the lock body and in relation with each other, the sleeve having a keyhole for allowing a key to be inserted and for being rotated by the key such that the linking member is shifted and forces the stopping member to change positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A combination lock having a second lock mechanism comprising:
-
a lock body comprising at least a push-button and a lock tongue in relation with each other, the lock tongue having a locking position and a releasing position; a stopping member, positioned in the lock body, having a first position for constraining the lock tongue in the locking position and a second position for releasing constraint of the lock tongue; a first lock mechanism comprising a plurality of dials and a shifting plate installed in the lock body, the shifting plate and the dials moving correspondingly, the shifting plate having a clamping position for constraining the stopping member to remain in the first position and a unlocking position for releasing the stopping member from being constrained; and a second lock mechanism comprising a sleeve and a flexible transmission member positioned in the lock body, the sleeve having a keyhole for allowing a key to be inserted and for being rotated by the key, the flexible transmission member being respectively connected to the sleeve and the stopping member such that the sleeve rotates actuates the flexible transmission member and the stopping member simultaneously for changing positions of the stopping member. - View Dependent Claims (10, 11, 12, 13)
-
-
14. A combination lock having a second lock mechanism comprising:
-
a lock body comprising at least a push-button and a lock tongue in relation with each other, the lock tongue having a locking position and a releasing position; a stopping member, positioned in the lock body, having a first position for constraining the lock tongue in the locking position and a second position for releasing constraint of the lock tongue; a first lock mechanism comprising a plurality of dials and a shifting plate installed in the lock body, the shifting plate and the dials moving correspondingly, the shifting plate having a clamping position for constraining the stopping member to remain in the first position and a unlocking position for releasing the stopping member from being constrained; and a sleeve, positioned in the lock body, having a keyhole for allowing a key to be inserted and for being rotated by the key, the sleeve further comprising an extension part for forcing the stopping member to change positions when the sleeve rotates. - View Dependent Claims (15)
-
Specification