| 摘要 |
An adjustable freight bracing crossbar is disclosed. The crossbar includes an elongate, substantially hollow, support body. A wall engaging member is connected to one end of the support body. A telescoping tube is slidably mounted within the other end of the support body and projects outward from the tube for engaging a wall. A hydraulic pump mechanism is secured within the support body and includes a piston movable within the tube between a retracted position and an extended position toward the projecting end portion of the tube. A spring is connected to the piston rod and the end portion of the telescoping tube for creating a biasing force between an extended piston and telescoped tube when the crossbar is mounted within a compartment to compensate for slack created between the end portion of the tube and compartment wall such as occurs when the compartment is in transit.
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