Lock
OwnerFu-An Leeinventor
Life of this patent
Estimating the term…
Abstract
A lock includes a body defining a first bore having a lock core mounted therein, and a second bore having an engaging element inserted thereinto; and a front barrier shield fixedly mounted in the body in front of the lock core. A communicating hole is formed in the body behind the lock core to communicate the two bores. A locking pin is disposed in the communicating hole to move into or out of a locking hole formed on the engaging element under control of the lock core, so as to lock or release the engaging element to or from the body, respectively. The front barrier shield includes a plurality of axially spaced and staggered barrier sheets to define a zigzag keyway, preventing a thief from peeping through the first bore and destructing the lock core.
Claims7
A lock, comprising:
- a body defining a first bore having a lock core mounted therein, and a second bore having an engaging element inserted thereinto;
- said first and said second bore being communicated with each other via a communicating hole, said communicating hole being located behind said lock core and having a locking pin axially movably disposed therein;
- said engaging element being provided with at least one locking hole, said locking pin being controlled by said locking core to move into said locking hole on said engaging element to thereby lock said engaging element to said second bore of said body, or move out of said locking hole on said engaging element to thereby release said engaging element from said second bore of said body;
- and
- a front barrier shield being mounted in said first bore in front of said lock core, and including a plurality of axially spaced and staggered barrier sheets to define a zigzag keyway;
- said lock core including a seat and a rotating plate;
- said seat having a plurality of axially extended long holes provided thereon, each of said long holes having a spring and a collared pin mounted therein, a seal ring being mounted on a front end of each said collared pin to allow only a predetermined length of said collared pin to forward project from said seal ring;
- and said rotating plate being rotatably connected to a front end of said seat through engagement of a central shaft rearward extended from said rotating plate with a shaft hole axially formed on said seat;
- said rotating plate being formed of a plurality of through holes corresponding to said long holes on said seat;
- said rotating plate being connected to the front end of said seat with said through holes aligned with said long holes, so that the length of each said collared pin forward projected from said seal ring is normally pushed by said spring to elastically extend into a corresponding one of said through holes on said rotating plate, preventing said rotating plate from rotating relative to said seat;
- and
- said locking pin having a first end indirectly pivotally connected to said central shaft of said rotating plate via a link and a crank, and a second end extended through said communicating hole into said second bore;
- whereby when said central shaft is rotated to bring said crank and said link to move in a circular motion, said locking pin is caused to axially move in said communicating hole into or out of said locking hole on said engaging element.
Dependencies are inferred from the claim text.