Adjustable support system

Details Adjustable support system Adjustable support system

1985-10-02

1988-02-02

Husar, Cornelius J.

Supports

Brackets

Adjustable

403 91, 403146, 403129, 362427, 188 70R, F16C 1100

Patent

active

047225025

ABSTRACT:
Apparatus is provided for adjustably supporting an object, such as a surgical light, between two points on a yoke-type frame. A housing having a cylindrical cavity and a threaded axial bore therethrough is secured to one of two hubs provided on the legs of the yoke. An adjustment screw having a face plate passes through the aperture. Wave washers and a spherical washer having a spherically concave friction surface are provided within the housing's cavity. A shaft is supported within the housing by a spherical bearing and terminates in a nut having a spherically convex friction surface. A keyway and recessed area on the shaft serve to secure the light to the shaft. The hub on the other leg is provided with a spherical bearing which supports a second shaft. The second shaft has a keyway and a recessed area which are engaged by a key and adjusting screw on a second mounting bracket in the opposite side of the light. As such, the axial force generated by the adjusting screw creates a force on, respectively, the face plate, wave springs and the spherical washer. Such axial force creates a frictional force between the mating surfaces of the spherical washer and nut thereby adjustably retaining the light.

REFERENCES:
patent: 3409265 (1968-11-01), Wichers et al.

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