Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent
1993-08-16
1994-10-04
Herrmann, Allan D.
Machine element or mechanism
Mechanical movements
Rotary to or from reciprocating or oscillating
74 50, 92136, 1231971, F16H 1904
Patent
active
053515668
ABSTRACT:
Drive apparatus and method for converting linear motion to rotary motion to rotatingly drive the driveshaft of a motor vehicle are disclosed. The drive apparatus includes a sprocket rigidly connected to a shaft and axially aligned thereabout. In addition, a moveable ratch for moving between first and second drive positions and having opposing first and second linear sprocket engaging drive segments is provided. The first linear drive segment of the moveable ratch engages the sprocket when the ratch is in its first drive position and the second linear drive segment engages the sprocket when the ratch is in its second drive position. A unique dual-headed piston apparatus is also disclosed which is attached to the moveable ratch for making linear downstrokes and upstrokes to (1) facilitate movement of the ratch between its first and second drive positions at the end/beginning of each stroke and (2) drive the ratch during a stroke when the ratch is in its first or second drive position which rotates the sprocket and drives the shaft.
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Barnett Franklin E.
Herrmann Allan D.
Laub David W.
Smith Brian D.
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