Crank drive for soil compacting apparatus

Details Crank drive for soil compacting apparatus Crank drive for soil compacting apparatus

1981-07-06

1984-04-17

Staab, Lawrence J.

Machine element or mechanism

Elements

Eccentric

74571L, 74600, G05G 100

Patent

active

044427310

ABSTRACT:
A crank device for soil compacting apparatus having a crank shaft and a connecting rod coupled to each other by two eccentric elements rotatable about parallel shafts in which the first eccentric element is provided with a plurality of recesses and the second element is provided with a locking bolt with the elements being rotatable to relative positions at which recesses respectively are generally aligned with said bolt, with the bolt being mounted for movement between a first position at which it can enter a first recess generally aligned therewith and cannot enter a second recess generally aligned therewith and a second position at which it cannot enter the first recess aligned therewith and can enter the second recess aligned therewith.

REFERENCES:
patent: 2477587 (1949-08-01), Doutt
patent: 2834223 (1958-05-01), Strnad
patent: 3008347 (1961-11-01), Perkins et al.
patent: 3426616 (1969-02-01), Van der Winden
patent: 4294136 (1981-10-01), Greppmair et al.

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