Machine element or mechanism – Control lever and linkage systems – Hand operated
Patent
1973-09-06
1977-04-19
Scott, Samuel
Machine element or mechanism
Control lever and linkage systems
Hand operated
74 37, 742165, F16C 110
Patent
active
040181022
ABSTRACT:
A movement device including a rigid inner supporting rod-like member of a closed circuit configuration and a flexible, closed sleeve slidably mounted on the rod-like support member. In one application of the invention, a drawer or the like can be moved relative to a case or the like by securing the drawer to the sleeve and securing the case to the sleeve at points on opposite sides of a point at which the rod-like support member changes direction. In another application, the device is used as a tilting mechanism for chairs by securing the chair body to the sleeve and securing the chair base to the sleeve at points opposite a point at which the rod-like member changes direction. The chair base can be eliminated by setting the rigid rod-like member directly on the floor. The device also provides a rotatable base for a stool. In another application, the device is used as a bearing between a shaft and a bearing sleeve, the shaft frictionally engaging the flexible sleeve on the inside of the closed circuit and the bearing sleeve frictionally engaging the flexible sleeve on the outside of the closed circuit configuration. In another application, the device is used as a drive pulley by supportably engaging the flexible sleeve by several pulley wheels at two spaced points whereby the rotation of one pulley wheel causes the sleeve to slide on the rigid rod-like member and rotates the other pulley wheels.
REFERENCES:
patent: 1072439 (1913-09-01), Duryea
patent: 1983962 (1934-12-01), Barber et al.
patent: 2799180 (1957-07-01), Madunich
patent: 3605932 (1971-09-01), Wilfert et al.
Ratliff, Jr. Wesley S.
Scott Samuel
Steelcase Inc.
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