TELESCOPIC SUPPORT Russian patent published in 2020 - IPC F16M11/28 

FIELD: manufacturing technology.

SUBSTANCE: telescopic support comprises a movable section in the form of side posts and crossbars and a fixed section in the form of side posts rigidly fixed on the base. Locking mechanism including retainers made in the form of discs fixed on horizontal axis, and rolling bearing installed on said axis between discs and made smaller than discs of diameter, arranged in windows of fixed section with possibility of transverse movement and interaction with movable section. Spacer element installed in fixed section with drive handle, fixed by means of block and tackle system on base of fixed section, and spring-loaded by means of compression spring, located between rolling bearings for interaction with their external surfaces, with the possibility of moving along the vertical axis along the longitudinal axis of the fixed section and made with symmetrical sections inclined in the upper part and rectilinear parallel to the longitudinal vertical axis for interaction with the retainers. Movable section is spring-loaded in vertical plane relative to fixed section by means of spacer spring-loaded relative to movable section. Spacing element in the lower part includes shoulders with the possibility of their interaction with rolling bearings. Walls of movable section interacting with retainers are made solid. On the outer side surface of the movable section in the lower part in the plane parallel to the locks drive travel plane, spring-loaded retainer and through vertical slot are made to interact spring-loaded retainer with ledges made on outer surface of side post of fixed section and ledges with slot. Distance between spring-loaded retainer and lower projection in vertical position in movable section upper position is not more than expected maximum travel of movable section relative to fixed section. Length of the groove is not less than the expected maximum travel of the movable section relative to the fixed section.

EFFECT: higher durability and ease of use.

1 cl, 3 dwg