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US 2013/0312467 A1Published application
Anti-break lock
OwnerTien-Kao Liuinventor
Life of this patent
Estimating the term…
Abstract
An anti-break lock includes a body and two rods respectively extend from two ends of the body. Two rings extend radially from the body. The body has a passage which communicates with one of the rings and the ring is engaged with an engaging block. The engaging block has a recess in which a pad is received. The passage has a resilient member and a stop pin received therein and the stop pin has a first shoulder and a second shoulder formed in two ends thereof. A contact portion extends from the second shoulder. The body has a room which communicates with the passage. A resilient piece and an engaging member are received in the room. When the lock is damaged, the contact portion is inserted into the recess and stopped by the engaging member so that it cannot move back to its initial position. The lock cannot be unlocked.
Claims15
An anti-break lock comprising:
- a case having a body and a fixing hole defined through the body, two rods respectively extending from two ends of the body and two rings extending radially from the body, an axis of the rings and an axis of the rods being parallel to each other, a space defined between the two rings;
- each ring is engaged with an engaging block, each engaging block has a recess which is located corresponding to the at least one passage and smaller than the at least one passage, a pad is engaged with each recess, the at least one passage is located at an end of the body and a resilient member and a stop pin are received in the at least one passage, each resilient member biases the corresponding stop pin which has a first shoulder defined in a first end thereof which faces the resilient member, a second shoulder is defined in a second end of each stop pin and located corresponding to the at least one passage and each recess, a contact portion extends from each second shoulder and is located corresponding to each recess, the body has a room which communicates with the at least one passage, a resilient piece and an engaging member are received in each room, each engaging member is located corresponding to each first shoulder and biased by each resilient piece to contact each stop pin, each contact portion contacts the corresponding pad;
- when one pad is removed from the corresponding recess, the corresponding stop pin is then pushed by the corresponding resilient member to insert the corresponding contact portion into the corresponding recess, the corresponding stop pin is then removed from the corresponding room, the corresponding engaging member is biased by the corresponding resilient piece and passes through a conjunction portion between the at least one passage and the corresponding room, the corresponding first shoulder of the corresponding stop pin is stopped by the corresponding engaging member and cannot move to its initial position.
(canceled)
An anti-break lock comprising:
- a case having a body and two rings extending radially from the body, a space defined between the two rings, the body has at least one passage which communicates with one of the rings, each ring is engaged with an engaging block, each engaging block has a recess which is located corresponding to the at least one passage and smaller than the at least one passage, a pad is engaged with each recess, the at least one passage is located at an end of the body and a resilient member and a stop pin are received in the at least one passage, each resilient member biases the corresponding stop pin which has a first shoulder defined in a first end thereof which faces the resilient member, a second shoulder is defined in a second end of each stop pin and located corresponding to the at least one passage and each recess, a contact portion extends from each second shoulder and is located corresponding to each recess, the body has a room which communicates with the at least one passage, a resilient piece and an engaging member are received in each room, each engaging member is located corresponding to each first shoulder and biased by each resilient piece to contact each stop pin, each contact portion contacts the corresponding pad;
- when one pad is removed from the corresponding recess, the corresponding stop pin is then pushed by the corresponding resilient member to insert the corresponding contact portion into the corresponding recess, the corresponding stop pin is then removed from the corresponding room, the corresponding engaging member is biased by the corresponding resilient piece and passes through a conjunction portion between the at least one passage and the corresponding room, the corresponding first shoulder of the corresponding stop pin is stopped by the corresponding engaging member and cannot move to its initial position.
An anti-break lock comprising:
- a case having a body and a fixing hole defined through the body, two rods respectively extending from two ends of the body and two rings extending radially from the body, an axis of the rings and an axis of the rods being parallel to each other, a space defined between the two rings;
- wherein each rod has a sleeve mounted thereto which receives a core, the rings are respectively mounted to the cores, each sleeve has at least one slit and each core has a groove which is located corresponding to the at least one slit, each groove has a positioning plate extending therefrom and each positioning plate extends to the corresponding sleeve, each positioning plate has two notches, each positioning plate of the corresponding groove has two locking pieces on two ends thereof and the locking pieces are fixed to the corresponding notches.
Dependencies are inferred from the claim text.