| 摘要 |
A pair of tracks having spaced cutouts formed along the longitudinal extent thereof are mounted vertically on opposite walls of a compartment such as the interior of a truck or other transportation vehicle. A beam assembly is formed by a pair of channel members and a beam member in which the channel members are slidably supported in telescoping relationship, the channel members having limited longitudinal movement relative to the beam member. One end of each of the channel members protrudes from the beam member and has a spring actuated latching device attached thereto. The effective length of the assembly can be adjusted by slidably positioning the channel members relative to the beam member to bring the latching devices into contact with the opposing tracks with such latching devices being selectively fitted onto flanged portions of the track and into a pair of opposing track openings so that they latch onto the track. A pair of such beam assemblies can be utilized to support a shelf or to directly support cargo without the intermediary of such a shelf.
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