Claims
- 1. A speed changing mechanism comprising:
- a housing,
- first and second gear means supported in the housing in planar relationship with one of the gears having external teeth and the other internal teeth and with the number of teeth of one of the gears being less than the number of teeth of the other gear,
- means defining an output shaft from said first gear means,
- said second gear means having a substantially centrally disposed hole and a peripherally disposed hole, a first pinion gear,
- means defining an input shaft supporting said first pinion gear and a first cam means received in the centrally disposed hole of said second gear means,
- and a second pinion gear and associated second cam means supported in the peripheral hole of said second gear means.
- 2. A speed changing mechanism as set forth in claim 1 wherein said pinion gears are interengaged.
- 3. A speed changing mechanism as set forth in claim 2 wherein said cam means comprise eccentric lobes on a support shaft.
- 4. A speed changing mechanism comprising:
- a housing,
- first and second gear means supported in the housing in planar relationship with one of the gears having external teeth and the other internal teeth and with the number of teeth of one of the gears being less than the number of teeth of the other gear,
- yoke means supported adjacent said first and second gear means, first and second cam gears supported adjacent said yoke means and on the opposite side to said first and second gear means,
- said first and second cam gears adapted to be intermeshed with one of said cam gears supported on an input shaft and the other of said cam gears also supported on a shaft extending to said yoke means.
- 5. A speed changing mechanism as set forth in claim 4 wherein said yoke means is substantially U-shaped having a lower hole for receiving said input shaft which extends from one of said cam gears to said second gear means.
- 6. A speed changing mechanism as set forth in claim 5 including means defining an output shaft coupled from said first gear means.
RELATED APPLICATION
This application is a continuation-in-part of application Ser. No. 316,753 filed Oct. 30, 1981 now abandoned which in turn is a continuation-in-part of application Ser. No. 218,470 filed Dec. 22, 1980 now abandoned.
US Referenced Citations (16)
Foreign Referenced Citations (12)
Number |
Date |
Country |
130523 |
Nov 1932 |
DE2 |
1933131 |
Jan 1971 |
DEX |
2424042 |
Jan 1975 |
DEX |
2635088 |
Feb 1977 |
DEX |
711700 |
May 1930 |
FRX |
772653 |
Nov 1934 |
FRX |
797130 |
Apr 1936 |
FRX |
990493 |
Jul 1949 |
FRX |
587951 |
Jan 1959 |
ITX |
311744 |
May 1930 |
GBX |
506655 |
Jun 1939 |
GBX |
11512 |
Sep 1985 |
GBX |
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
316753 |
Oct 1981 |
|
Parent |
218470 |
Dec 1980 |
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