| 摘要 |
<p>A clamping device displaces a frame leg (60) of an impost (70) against another leg. The clamping device comprises a spreading block (12) inserted into frame leg, and a clamping finger movable between the lying and upstanding positions. The end portion (14) of the impost is formed with a guide (39) for receiving an extension of the end of clamping finger. The guide is formed with a sliding portion (50) extended from an lower opening (58) and a locking portion (52) that is bent with respect to sliding portion.</p> |
