Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent
1995-07-28
1997-08-19
Herrmann, Allan D.
Machine element or mechanism
Mechanical movements
Reciprocating or oscillating to or from alternating rotary
185 40R, F16H 1908, F03G 100
Patent
active
056576641
ABSTRACT:
A transmission for an actuating drive having a spring return feature includes a drive pinion (2) associated with the actuating drive; an intermediate pinion (5) meshing with the drive pinion (2); an output shaft (3) having a clutch (4 for a final control element, and two gears (6, 7) rotatably mounted within the transmission housing (1). Each gear (6, 7) has an external toothing (8, 9) and a rotatably mounted hub (10, 11) so extending around the output shaft (3) as to leave an annular gap between the same and the hub. The drive gear (2) meshes with the external toothing (8) of one of the two gears. The intermediate pinion (5) meshes with the external toothing (9) of the other gear. A coupling sleeve (14) is disposed in the annular gap between the output shaft (3) and the gears (6, 7), is releasably connected to the output shaft (3) and is coupled positively with the hub (10, 11) of one of the gears. The direction of rotation of the output shaft (3) is variable by changing the coupling sleeve (14).
REFERENCES:
patent: 2281383 (1942-04-01), Raphael
patent: 2502356 (1950-03-01), Wagner
patent: 3042357 (1962-07-01), Engholdt
Herrmann Allan D.
Johnson Service Company
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