US 7,387,185 B2
Axle driving unit for a lawn tractor
Robert Abend, Adairsville, Ga. (US); Norihiro Ishii, Amagasaki (Japan); and Ryota Ohashi, Hyogo-ken (Japan)
Assigned to Kanzaki Kokyukoki Mfg. Co., Ltd., Hyogo (Japan)
Filed on Jan. 08, 2007, as Appl. No. 11/620,979.
Application 11/620979 is a continuation of application No. 11/254746, filed on Oct. 21, 2005.
Application 11/254746 is a continuation of application No. 10/847372, filed on May 18, 2004, granted, now 6,983,815, filed on Jan. 10, 2006.
Application 10/847372 is a continuation of application No. 10/187848, filed on Jul. 03, 2002, granted, now 6,752,236, filed on Jun. 22, 2004.
Application 10/187848 is a continuation of application No. 10/101071, filed on Mar. 20, 2002, granted, now 6,568,498, filed on May 27, 2003.
Application 10/101071 is a continuation of application No. 08/875724, granted, now 6,390,227, filed on May 21, 2002, previously published as PCT/US95/04097, filed on Mar. 30, 1995.
Prior Publication US 2007/0107953 A1, May 17, 2007
Int. Cl. B60K 17/00 (2006.01)
U.S. Cl. 180—306  [60/487; 180/375; 180/378] 13 Claims
OG exemplary drawing
 
1. An axle driving unit, comprising:
a pair of axles;
a differential unit for differentially connecting said pair of axles to each other;
a hydraulic pump;
a hydraulic motor;
a motor shaft;
an output gear on said motor shaft for drivingly connecting to said differential unit;
a center section having a pump mounting surface and a motor mounting surface onto which said hydraulic pump and said hydraulic motor are mounted respectively so as to be fluidly connected with each other through said center section;
a housing being constituted by a first housing part and a second housing part joined to each other at a joint surface,
a fastener fastening said center section to said first housing part,
wherein said center section is entirely disposed in said first housing part, whereby said hydraulic pump, said hydraulic motor and said output gear are entirely contained in said first housing part,
wherein said motor mounting surface is disposed in parallel to said joint surface of said housing.