Pivot and translation motion control apparatus

Machine element or mechanism – Control lever and linkage systems – Multiple controlling elements for single controlled element

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Details

74 8915, 434 55, 434 57, G05G 1100

Patent

active

045848963

ABSTRACT:
A multiple axis pivot movement control mechanism includes an actuator operatively connected between the relatively pivotable elements at positions spaced laterally from the pivotal axis. The actuator preferably includes a threaded shaft, a threaded collar received on the threaded shaft and pivotably connected to one of the relatively pivotable elements, a bearing assembly connected to the other relatively pivotable element and rotationally supporting the other end of the shaft and transferring axial forces to its connected relatively pivotable element and a motor which operatively rotates the shaft to create pivoting movement. At least one spring or other force inducing element may be connected between the relatively pivotable elements to apply force to counteract the torque effect created when the center of gravity of the object shifts laterally during pivoting movement. A translational movement control mechanism includes a lift arm pivotably connected to a base structure, and an acutator of essentially the same characteristics operatively connected between the base structure and the lift arm. Independent pivotable movement about each of the three mutually perpendicular axes and simultaneous translational movement is also possible.

REFERENCES:
patent: 1949414 (1934-03-01), Foulk
patent: 2362190 (1944-11-01), Cortes
patent: 2485266 (1949-10-01), Edinburg
patent: 2695783 (1954-11-01), Serafin
patent: 3398484 (1968-08-01), Katsumura
patent: 3402613 (1968-09-01), Neusel et al.
patent: 3496650 (1970-02-01), Kimball et al.
patent: 3613464 (1971-10-01), Archer
patent: 3623574 (1971-11-01), Gardner
patent: 3984924 (1976-10-01), Myles et al.
patent: 4303236 (1981-12-01), Czarnecki

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