| 摘要 |
<p>A rail (12) has an axially extending undercut groove (14G) of a uniform generally 'C' shaped cross-section which is supported by supports (10) attached to the rail (12) in spaced-apart relation. Each support (10) includes a bracket (20) and a lock member (22) attached to the bracket (20) for rotation and against displacement of the lock member (22) relative to the bracket (20). The lock member (22) includes a locking cam portion (60), which is received in an undercut groove.</p> |
