Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1975-04-11
1977-08-23
Scott, Samuel
Machine element or mechanism
Control lever and linkage systems
Elements
5 74, 297377, G05G 506
Patent
active
040432190
ABSTRACT:
An angle or wedge adjuster for reclining furniture is provided with a slide that travels along a rack and which is formed with a cam surface for controlling the position of a strut that engages the rack teeth and is pivoted to a lever, the angle of which is to be adjusted. The movement of the slide is frictionally impeded by a spring-loaded insert located between the slide and a smooth surface of the rack, one of these two sliding surfaces being formed on synthetic plastics material. The spring may be a metal leaf spring bowed downwards to engage a portion of the slide and having its ends sprung against projections that also retain the insert in the slide. Alternatively, this spring may be of synthetic plastics material with its ends made in one piece with the insert of the same material. Conversely, the spring may be bowed upwards with its center integral with the insert. As a further alternative, the insert may be a metal plate coated with synthetic plastics material, and the spring may be a metal leaf spring bowed upwards with its center locked to the plate.
REFERENCES:
patent: 2613731 (1952-10-01), Roginski
patent: 3785215 (1974-01-01), Stefani
Ratliff, Jr. Wesley S.
Scott Samuel
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