Claims
- 1. An axle driving apparatus comprising:a housing; a hydrostatic transmission mounted in said housing and comprising a rotatable pump and rotatable motor and a moveable swash plate engaged to the rotatable pump; a trunnion shaft engaged to one side of the swash plate and extending out of the housing; a control arm mounted external to the housing and engaging the trunnion shaft and having a ball bearing mounted thereon; a return arm mounted external to the housing and engaging the ball bearing to provide a return force to the control arm.
- 2. An axle driving apparatus as set forth in claim 1, further comprising a center section mounted in the housing, on which the rotatable pump and rotatable motor are mounted.
- 3. An axle driving apparatus as set forth in claim 2, further comprising a motor shaft driven by the rotatable motor and a gear train mounted in the housing and driven by the motor shaft.
- 4. An axle driving apparatus as set forth in claim 3, further comprising a differential mounted in the housing and driven by the gear train and a pair of axle shafts mounted in the housing and driven by the differential.
- 5. An axle driving apparatus as set forth in claim 3, wherein the trunnion shaft is integrally formed with the swash plate.
- 6. A control mechanism for a hydrostatic transmission having a casing, comprising:a control arm mounted external to the casing and engaged to the hydrostatic transmission, the control arm having a ball bearing mounted thereon; and a return arm mounted external to the casing and engaging the ball bearing to provide a return force to the control arm.
- 7. A hydraulic device having a housing, comprising:a rotatable pump within the housing; a moveable swash plate engaged to the rotatable pump; a trunnion shaft engaged to one side of the swash plate and extending outside the housing; a control arm mounted external to the housing and engaging the trunnion shaft and having a ball bearing mounted thereon; and a return arm mounted to the housing and engaging the ball bearing to provide a return force to the control arm.
- 8. A hydraulic device as set forth in claim 7, wherein the trunnion shaft is integrally formed with the swash plate.
- 9. A hydraulic device as set forth in claim 7, further comprising a rotatable motor drivingly connected with the rotatable pump.
- 10. A hydraulic device as sort forth in claim 9, further comprising a motor shaft driven by the rotatable motor.
- 11. A hydraulic device as sort forth in claim 10, further comprising a gear train driven by the motor shaft, wherein the gear train and rotatable motor are mounted in the housing.
- 12. A hydraulic device as sort forth in claim 11, further comprising a differential mounted in the housing and driven by the gear train, and a pair of axle shafts mounted in the housing and driven by the differential.
CROSS-REFERENCE
This application is a continuation of U.S. patent application Ser. No. 09/845,989 filed Apr. 30, 2001 now U.S. Pat. No. 6,487,935. This parent application is a continuation of (1) U.S. patent application Ser. No. 09/354,963 filed Jul. 16, 1999, now U.S. Pat. No. 6,253,637; which is a continuation-in-part of U.S. patent application Ser. No. 09/196,182 filed on Nov. 20, 1998, now U.S. Pat. No. 6,122,996; and (2) U.S. patent application Ser. No. 09/773,994 filed Feb. 1, 2001, now U.S. Pat. No. 6,318,080; which is a continuation of U.S. patent application Ser. No. 09/196,183 filed Nov. 20, 1998, now U.S. Pat. No. 6,185,936. These prior applications are incorporated herein in their entirety by reference.
US Referenced Citations (42)
Non-Patent Literature Citations (1)
Entry |
Photograph dated '96 3 4 of Model 310-3000 integrated hydrostatic transaxle. |
Continuations (4)
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Continuation in Parts (1)
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