To provide a sheet shutter which regulates an inward movement of a guide protrusion so as to make a normal lifting of a sheet smooth and prevents a core and an inner rail, or the like from being damaged when the core is bent by wind, or the like.
A sheet shutter includes: a sheet case which houses a sheet drum winding and unrolling a sheet 2 with a plurality of cores 10; and a support post 3 arranged at both right and left ends of the sheet case. The cores 10 are supported, in a manner to enable elevation guide thereof, in an inner rail 16 which is provided on right and left inner sides of the support rod 3. A regulating part 16e, which protrudes movably in a longitudinal direction of a groove, is provided in a middle part of front and rear sidewalls 16a, 16a of the inner rail 16. A guide protrusion 11, which is protrusively provided in right and left ends of the cores 10 inserted into a rail groove 16c, is regulated by the regulating part 16e so as to release the regulation of a movement from a groove back side toward an inward direction.
| JP3146491 | Shutter sleeve door device with evacuation door for wheelchairs |
| WO/1998/014682 | DOOR OR WINDOW ELEMENT |
ADACHI HITOYUKI
HORIE YOSHIAKI
FUJII TAKESHI
Kogo Kogo
Kazuya Kusunoki