Arrangement in working lamps

Details Arrangement in working lamps Arrangement in working lamps

1980-01-07

1982-05-04

Lechert, Jr., Stephen J.

Illumination

Supports

Adjustable light support

362396, 362432, 362401, 362413, F21M 318

Patent

active

043285368

ABSTRACT:
An arrangement in working lamps intended for close-range illumination of working areas, such as desks, working benches and the like. This type of lamps generally comprise an upper pivotable arm which supports the light fittings, a lower pivotable arm which is attached to the working area, and various kinds of spring means to take moments of leverage.
The purpose of the invention is to simplify such prior-art structures while at the same time retain a maximum of possible positions of the lamp.
In accordance with the invention, this purpose is achieved by the provision of a rail extending from a segment positioned between the upper and the lower pivotable arm essentially in parallel with the lower arm, to a guide means in a housing in which the lower end of the lower arm is pivotally mounted. The rail cooperates with the housing by means of a pin-and-slot coupling arrangement in which the slot serves to guide the pin and is arranged to take on one of its edges any moments of load exerted by the light fittings in any one of their set positions.

REFERENCES:
patent: 2833504 (1958-05-01), Sacksteder
patent: 4165530 (1979-08-01), Sowden

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