| 摘要 |
The invention concerns a handle brake device (10) installed on a handlebar (11) of a wheelchair or a wheeled walker to control a transmission cable connected at one end to the hand brake device (10) and at the other end to a brake mechanism mounted on a wheel of the wheelchair or the wheeled walker comprising:
- a housing (1) being fixedly mounted onto the handlebar (11) of the wheelchair or the wheeled walker,
- a brake lever (2) rotatably installed on said housing (1),
- a transmission cable connected to said brake lever (2) through a cable connector (4), said cable connector (4) defining a connecting point, characterized in that the brake lever (2) comprises a first arc hole (16) and a second arc hole (17), inside each of which a pivot pin (13', 13") fixedly connected to said housing (1) is slideably engaged in such a manner as to provide dual pivot for the brake lever (2), respectively a first pivot (A) and a second pivot (B), each arc hole (16, 17) having a lower end (16', 17') and a higher end (16", 17") and being configured so that said brake lever (2) rotates firstly around said first pivot (A) when said first pivot (A) is positioned at the lower end (16') of the first arc hole (16) and said second pivot (b) is positioned at the higher end (17") of the second arc hole (17), and secondly around said second pivot (B) when said first pivot (A) is positioned at the lower end (16') of the first arc hole (16) and said second pivot (B) is positioned at the lower end (17') of the second arc hole (17).
|
