Sprinkler head
AssigneeSenju Sprinkler Co., Ltd.
InventorTakashi Takeuchi
Life of this patent
Estimating the term…
Abstract
To provide a sprinkler head including: a sprinkler head main body having a nozzle therein, connected to water supply piping, and installed in a ceiling; a cover plate concealing the sprinkler head main body; a retainer disposed so that the cover plate is located below the ceiling surface and capable of releasing the cover plate in the event of fire; and a cylindrical member that is attached to the sprinkler head main body and to which the retainer is detachably connected, and having a structure that can save the trouble of removing and reattaching a protective cap at the time of installation of the sprinkler head. The sprinkler head has such a structure that a protective cap attached to the sprinkler head is fitted to the outer periphery of the sprinkler head main body.
Claims6
A sprinkler head comprising:
- a sprinkler head main body having a nozzle therein, connected to water supply piping, and installed in a ceiling;
- a cover plate concealing the sprinkler head main body;
- a retainer disposed so that the cover plate is located below the ceiling surface and capable of releasing the cover plate in the event of fire;
- and
- a cylindrical member that is attached to the sprinkler head main body and to which the retainer is detachably connected,
- wherein a protective cap attached to the sprinkler head is fitted to the outer periphery of the sprinkler head main body,
- wherein in the sprinkler head main body, the engaging portion to be engaged with the tightening tool has a diameter larger than the outside diameter of the protective cap and smaller than the inside diameter of the cylindrical member.
A sprinkler head comprising:
- a sprinkler head main body having a nozzle therein, connected to water supply piping, and installed in a ceiling;
- a cover plate concealing the sprinkler head main body;
- a retainer disposed so that the cover plate is located below the ceiling surface and capable of releasing the cover plate in the event of fire;
- a cylindrical member that is attached to the sprinkler head main body and to which the retainer is detachably connected,
- wherein a protective cap attached to the sprinkler head is fitted to the outer periphery of the sprinkler head main body,
- wherein an engaging portion to be engaged with a tightening tool for connecting the sprinkler head main body to the water supply piping is formed inside the cylindrical member, and
- wherein in the sprinkler head main body, the engaging portion to be engaged with the tightening tool has a diameter larger than the outside diameter of the protective cap and smaller than the inside diameter of the cylindrical member.
Dependencies are inferred from the claim text.