Flexible or portable closure – partition – or panel – Hanging or drape type
Patent
1999-01-25
2000-07-25
Johnson, Blair M.
Flexible or portable closure, partition, or panel
Hanging or drape type
160331, 160352, A47H 106
Patent
active
060925833
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a closure member and a closure structure which are used in place of doors, shutters and the like at entrances, and are constituted of a flexible sheet curved wavily so as to wave in the horizontal direction. The sheet is provided on this side of an entrance toward the inner part so that the entrance is closed by hill and valley of the sheet and, when one goes in or out, the sheet is caused to wave forward so that one can go in or out when an end of the sheet stands a hill or a valley and can move with the forward movement of the hill or valley.
BACKGROUND ART
In movie theaters and other theaters, lobbies are kept light during the performance, but seat rooms or auditorium rooms are made dim on the opening of a performance and kept dim until the end of the performance. However, doors that are opened or closed by the aid of hinge structure are used at the entrances through which spectators enter the seat room or auditorium room from the lobby. Hence, when a spectator opens and closes a door to go in or out, the light in the lobby streams into the seat room or auditorium room to give an unpleasant feeling to spectators who are appreciating the movie or play at the seats near to the door. Since, however, single-door closing members having such a structure that the light may not stream in when the door is opened or closed are not available, it has been difficult to change doors with hinge structure for those with different structure.
An object of the present invention is to provide a closure member that can prevent light from streaming in from the outside when the door is opened and closed.
Another object of the present invention is to provide a closure structure that can prevent light from streaming in from the outside when the door is opened and closed.
Still another object of the present invention is to provide a closure structure that can prevent light from streaming in from the outside when the door is opened and closed and also can carry those who go in or out when the door is opened and closed.
DISCLOSURE OF THE INVENTION
The first of the present invention is a closure member comprising a flexible sheet curved wavily so as to wave in the horizontal direction, and a drive which causes the flexible sheet to wave forward.
The second of the present invention is a closure structure comprising a flexible sheet curved wavily so as to wave in the horizontal direction, a drive which causes the flexible sheet to wave forward, and a wall member provided on each side of the flexible sheet in the hill-to-valley direction in its side view; the flexible sheet being in contact with each wall member.
The third of the present invention is a closure structure comprising a flexible sheet curved wavily so as to wave in the horizontal direction, a drive which causes the flexible sheet to wave forward, a wall member provided on each side of the flexible sheet in the hill-to-valley direction in its side view, and a moving floor provided beneath the flexible sheet along the forward-waving direction of the sheet; the flexible sheet being in contact with each wall member.
In the first of the present invention, the flexible sheet is curved wavily so as to wave in the horizontal direction. Hence, the flexible sheet can close the space at its part extending from a hill to a valley as viewed from its one-side lateral surface. The hill and valley of this sheet always exist even when the flexible sheet is caused to wave forward from one end to the other end by means of the drive. Accordingly, a tunnel type enclosure made of an opaque material may be provided around the sheet which waves forward and the sheet may be caused to wave forward in such a state that the height (width) of the forward waving is identical to or larger than the width of the enclosure, thus the hill and valley move forward while coming in contact with the enclosure and can prevent the light from streaming in from the outside. To go in and out through the closure member, one may enter the area defined by the hill or val
REFERENCES:
patent: 3115182 (1963-12-01), Bobbitt
patent: 5372173 (1994-12-01), Horner
Johnson Blair M.
Nisshin A & C Co., Ltd.
Nisshin Steel Co. Ltd.
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