EXPANSION GATE

PROBLEM TO BE SOLVED: To provide an expansion gate achieving smooth opening/closing operation without frictional resistance.SOLUTION: A twist inhibiting member 60 having a couple of side rollers 63 and 63 is attached to an expansion gate. The couple of side rollers 63 and 63 have a height equal to t...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAMURA KATSUHIKO, ENSHO YUTAKA, TAKEYASU KOICHI
Format:	Patent
Sprache:	eng
Schlagworte:	DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL FIXED CONSTRUCTIONS FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES LADDERS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an expansion gate achieving smooth opening/closing operation without frictional resistance.SOLUTION: A twist inhibiting member 60 having a couple of side rollers 63 and 63 is attached to an expansion gate. The couple of side rollers 63 and 63 have a height equal to that of a side face 32 of a rail 3 and are arranged in an extending direction of the rail 3 across a wheel 50. The side roller 63 comes in contact with the side face 32 to inhibit twisting of movement end frame body 41a during opening/closing operation of the expansion gate. Consequently, a flange 50a of the wheel 50 and fall prevention metal fittings are prevented from being in contact with the rail 3. The side roller 63 comes in contact with the rail 3 to revolve along the rail 3 without frictional resistance, so that the expansion gate can be smoothly opened/closed.