| 摘要 |
A bracket assembly includes an angle bracket having a horizontal leg and a vertical leg. A lower bracket arm and a lock are coupled to the angle bracket and cooperate to mount the angle bracket onto an upright. The lock includes a pair of side members pivotally coupled to the angle bracket by a fulcrum bar. The pair of side members include a first pair of openings for an outer jaw and a second pair of openings for an inner jaw, the second pair of openings being disposed, in the case of a load activated lock, beneath the plane defined by the fulcrum bar and the first pair of openings. In one embodiment, inner jaw comprises a contact surface which is flat. In another embodiment, the inner jaw comprises a contact surface which includes a plurality of rasps.
|
