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DOUBLE-PAWL-DRIVE RATCHET MECHANISM |
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Description
Link 1 reciprocates in fixed guides a-a. Pawls 3 and 4 turn about axes C and B of link 1, alternately engaging teeth d of ratchet wheel 2 which rotates about fixed axis A. Pawls 3 and 4 are held in engagement by springs b. When link 1 reciprocates, it slides with its slot f on the hub of wheel 2, and pawls 3 and 4 rotate the wheel intermittently counterclockwise. The pawls prevent wheel rotation in the reverse direction. Members e lock wheel 2 at the instants it is being engaged and disengaged by pawls 3 and 4. |
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DOUBLE-PAWL-DRIVE RATCHET MECHANISM
Click to enlarge
Link 1 reciprocates in fixed guides a-a. Pawls 3 and 4 turn about axes C and B of link 1, alternately engaging teeth d of ratchet wheel 2 which rotates about fixed axis A. Pawls 3 and 4 are held in engagement by springs b. When link 1 reciprocates, it slides with its slot f on the hub of wheel 2, and pawls 3 and 4 rotate the wheel intermittently counterclockwise. The pawls prevent wheel rotation in the reverse direction. Members e lock wheel 2 at the instants it is being engaged and disengaged by pawls 3 and 4.
$2730$RG,ML$
| Documents: |
Gear mechanisms [Streambook] |
 DMG-Lib |
 https://www.dmg-lib.org/dmglib/handler?image=19421023 |
|
 Europeana |
 http://www.europeana.eu/portal/record/2020801/dmglib_handler_image_19421023.html |
 Ilmenau TU |
http://www.tu-ilmenau.de |
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