Safety switch
AssigneeKeyence Corporation
InventorsChoryon Oh, Yu Babasaki, Lye Tatt Cheah
Life of this patent
Estimating the term…
Abstract
To realize both toughness and size reduction of a safety switch. A safety switch is a safety switch into and from which a bolt of an actuator is inserted and pulled out. The safety switch includes a casing having a shape elongated along a first direction, a metal head having a receiving space for receiving the bolt of the actuator and provided on a first end side of the casing in the first direction, a detector for detecting a first state in which the bolt is received in the receiving space, a lock mechanism, a switching device and a first attachment portion provided in the head and having a first attachment hole into which a first attachment member is inserted.
Claims20
A safety switch having a lock mechanism for locking a bolt of an actuator including a transponder, comprising:
- a casing having a shape elongated along a first direction;
- a metal head coupled to a first end side of the casing in the first direction, and having a receiving space for receiving the bolt of the actuator, and a first attachment hole formed along a second direction orthogonal to the first direction;
- a wireless circuit disposed in the casing to receive a wireless signal from the transponder;
- a lock pin in the lock mechanism, configured to regulate pull-out of the bolt from the receiving space by disposing at a lock position in a lock state, and configured to allow pull-out of the bolt from the receiving space by disposed at an unlock position in an unlock state, the lock pin being switchable between the lock position and the unlock position;
- and
- a switching device disposed in the casing to output a safety signal indicating a safety state based at least on the wireless signal received via the wireless circuit, and
- wherein the first attachment hole is provided for fixing the metal head by a first attachment member disposed along the second direction through the first attachment hole.
A safety switch having a lock mechanism for locking a bolt of an actuator including a transponder, comprising:
- a casing having a shape elongated along a first direction;
- a head coupled to a first end side of the casing in the first direction, and having a receiving space for receiving the bolt of the actuator, and a first attachment hole formed along a second direction orthogonal to the first direction;
- a wireless circuit disposed in the casing to receive a wireless signal from the transponder;
- a lock pin in the lock mechanism, configured to regulate pull-out of the bolt from the receiving space by disposing at a lock position in a lock state, and configured to allow pull-out of the bolt from the receiving space by disposed at an unlock position in an unlock state, the lock pin being switchable between the lock position and the unlock position;
- and
- a switching device disposed in the casing to output a safety signal indicating a safety state based at least on the wireless signal received via the wireless circuit;
- a first OSSD display lamp disposed on a first position in a first side of the casing, configured to indicate a status of the switching device;
- a second OSSD display lamp disposed on a second position in the first side of the casing, configured to indicate the status of the switching device;
- and
- a lock display lamp disposed on the first side of the casing, configured to indicate a status of the lock mechanism.
Dependencies are inferred from the claim text.