Seat erecting/folding structure for movable spectators' stand
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 12, 2001
Grant Date -
N/A
app pub date -
Oct 27, 1999
filing date -
Jan 14, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A chair-raising and folding construction is simple in construction and reduced in weight, and is also capable of, when using a moving stand with lower stages of decks protracted, effectively preventing spectators, etc. from entering into non-used decks protracted. The moving stand telescopically accommodates and protracts a plurality stages of decks (1,2). Each of the decks (1,2) has a plurality of raisable and foldable chairs (3). A leg portion (5) of the chair (3) is hinge-connected to a base frame (4) disposed on the deck (1). A crank member (10), comprising a swing arm (12) protruding upward from the base frame (4), and a hook (13) protruding forward from a lower end portion of the swing arm (12), is rotatably supported at a corner portion thereof. The swing arm 12 has such a protruding length such that a distal end portion thereof abuts against a front end surface (2a) of the upper stage-side deck (2). The leg portion (5) is provided with a lock member (9) engaged with the hook when the leg portion takes the raised attitude.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully