US Patent 10190725 Load support apparatus

The present load support apparatus comprises an object support apparatus 10 includes a regulating device 60 that regulates movement of a support frame unit 13 with respect to a fixed frame unit 12. The regulating device includes a fixed-side slit 62 that is formed at a side frame 18, 19 of the fixed frame unit, a movable-side slit 63 that is formed at a guide frame 28, 29 of the support frame unit, and a regulating member 61 that is inserted through the slits. The regulating member is engaged with a movable-side engaging portion 71 at the movable-side slit and a fixed-side engaging portion 72 at the fixed-side slit and the regulating member is locked between the fixed-side engaging portion and the movable-side engaging portion.