Machine element or mechanism – Mechanical movements – Rotary to gyratory
Patent
1981-02-24
1982-10-12
Byers, Jr., Nile C.
Machine element or mechanism
Mechanical movements
Rotary to gyratory
404117, 74 61, 366116, F16H 3300
Patent
active
043532616
ABSTRACT:
A vibratory mechanism comprises a motor-driven shaft, a first mass carried by the shaft for rotation therewith, and a variable mass supported for rotation relative to the shaft whereby the angular relationship between the first mass and the variable mass can be selectively adjusted to vary the amplitude of vibration. A drive member is rotatable with the shaft. The variable mass carries a plurality of longitudinally and circumferentially spaced abutment surfaces. The drive member carries a contact face. Engagement between the contact face and the abutment surfaces occurs at different angular relationships between the first mass and the variable mass to vary the amplitude of vibration. A control mechanism produces relative longitudinal movement between the variable mass and the drive member to circumferentially align the contact face with a selected one of the surfaces such that rotation of the drive member produces driving engagement between the selected surface and the contact face to rotate the variable mass with the shaft.
REFERENCES:
patent: 3590702 (1971-07-01), Sechi
patent: 3598029 (1971-08-01), Paramythioti
patent: 3618485 (1971-11-01), Hermann
patent: 3670631 (1972-06-01), Gaylord
patent: 3892496 (1975-07-01), Martinez
patent: 4176983 (1979-12-01), Gardner
Byers Jr. Nile C.
The Koehring Company
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