METHOD FOR AUTOMATICALLY OPENING DOOR AND DEVICE FOR AUTOMATICALLY OPENING AND CLOSING DOOR

A door opening and closing device for a slide door, which can be horizontally open and close the slide door by application of a light load and which can be constructed and maintained at low costs. The door opening and closing device has a transmission mechanism for converting through a lever (31) th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	NAKANO YASUO
Format:	Patent
Sprache:	eng
Schlagworte:	CHECKS FOR WINGS DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION 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 HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICESFOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTOOPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOTOTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THEWING KEYS LADDERS LOCKS SAFES WINDOW OR DOOR FITTINGS WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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Beschreibung
Zusammenfassung:	A door opening and closing device for a slide door, which can be horizontally open and close the slide door by application of a light load and which can be constructed and maintained at low costs. The door opening and closing device has a transmission mechanism for converting through a lever (31) the amount of settlement of a tread plate (21) placed on floor surfaces at positions in front and back of the slide door (12), into a predetermined displacement amount. The tread plate (21) is weight-wise balanced such that the transmission mechanism and settlement of the tread plate due to the weight of an adjustment weight (W) causes the tread plate (21) to float through the lever (31). Up-down movement of the long transmission member (32) presses a drive rotation body (42) to an open door rail (41), and a component force of the pressing force allows the slide door (12) to be opened by application of a light load.