| 摘要 |
A packboard fixture device consisting of a support cradle, aluminum vacuum caps, pressure block and cargo strap assembly. The support cradle is an aluminum structure with a base, side supports, and two vertical end walls, the shorter of which is hinged to allow installation and removal of the packboard with collapsed slide. The vacuum caps are preferably aluminum with rubber sealing lips which are pushed onto the pump heads mounted in the packboard. These seal off the pumps and allow a vacuum to be established within the fabric slide to evacuate all air within the slide to be folded. A thick wooden member functions to uniformly compress the deflated slide into the packboard. It acts as a pressure block to distribute the compressive forces uniformly over the hinged mechanism as it is drawn down by straps using a rachet type device for drawing the straps in tension.
|
