| 摘要 |
A sawhorse has a pair of legs on each side of the longitudinal beam, and the two pair of legs are movable towards each other for folding the sawhorse. The hinge for allowing motion of the legs is made up of a bolt extending through the beam, with openings in each leg to receive an end of the bolt. The openings in the legs have one wall to limit the outward movement of the leg by engaging the bolt, and another wall to limit the inward movement of the leg. Nuts or other stops hold the legs on the bolts. A latching block may be fixed to the lower surface of the beam, between the legs. The block can be rotated to extend between the legs and prevent folding, or to extend along the beam and allow folding.
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