| 摘要 |
FIELD: mechanical engineering. ^ SUBSTANCE: movable member of the joint is made of two members made of branch pipes. The branch pipes are arranged on both sides of a pillar. One of the members is provided with a pin for engaging one of the openings in the pillar. Both of the members are shifted along the pillar and locked to each other for permitting free sliding of movable member along the pillar when the pin is disengaged. The device for locking the movable member with respect to the pillar is made of a screw-pin by way of setting it in coincident openings of the pillar and member with the pin. The device for locking is made of a member provided with vertical grooves on the opposite sides. The inner corner of the member nearest to the movable member is beveled. The pillar and the movable members are made of metallic pipes which are square and/or rectangular in cross-section. ^ EFFECT: simplified manufacturing and reduced cost of manufacturing. ^ 4 dwg |
