| 摘要 |
<p>A brake device (5) for a roll-top door (2) whose side edges are guided each in their channel (3) has a brake member (8) at each channel (3). The brake members (8) are eccentrically disposed each on their lever (9), and when the roll-top door (2) moves downwards, the brake device (5) is self-applying. On application, the brake member (8) urges the side edge of the roll-top door (2) against the channel (3), the frictional force between them increasing and functioning as a retarding force. <IMAGE></p> |
