Importance

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Abstract

An operator restraint bar or seat bar has side arms that are pivotally mounted to a rear wall of a loader cab, and a front lap bar. The restraint bar is mounted with a spring that will absorb energy when the front lap bar is moved in a forwardly direction. A spring also provides forces for urging the seat bar assembly to a working or restraining position. After the seat bar assembly has been pivoted away from its working position a desired amount, the spring urges the seat bar assembly toward a raised position. In one form of the invention, a single spring on each side arm performs all of the functions of absorbing energy and urging the restraint bar toward its working position and after initial upward movement, toward a raised position. The energy absorption can be accomplished by spring loading the vertical and horizontal arm section in various ways, so a change in angle between them adds energy to an energy absorbing member.

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First Claim