| 摘要 |
A chair or seat bench which is particularly suited for mass transportation and comprising a frame (10) supporting a seat portion (11) and a backrest portion (12), in order to simplify the mounting and removal of the upholstery (20, 21) of the seat portion and backrest portion and in the same time avoiding that it may be untied by mischief, it is fixed and tightened between the front edge and back edge of the seat portion and between the lower edge and upper edge of the backrest portion respectively, the locking device (22, 24; 25) of which comprises flat rails to which the upholstery is fixed and which is locked up in grooves (16, 19, 26, 28) along the side edges. The back edge of the seat portion and the lower edge of the backrest portion are so arranged with respect to each other that the respective locking devices for the upholstery are inaccessible. In order to provide an exposal of the said locking devices, the seat portion (11) is displeaceable on the frame (10) in the direction away from the backrest portion (12) by means of releasing a blocking device (29). |
