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US RE37,049 E1Granted
Axle driving apparatus
AssigneeKanzaki Kokyukoki Mfg. Co., Ltd.
InventorsNorihiro Ishii, Toshio Nagai, Hidemi Harada, Hideaki Okada
Life of this patent
Estimating the term…
Abstract
An axle driving apparatus has in a housing a hydrostatic transmission with a variable displacement type hydraulic system having a slantingly movable swash plate. In one embodiment, the movable swash plate is manually slantingly operable. A leg member integrally extends from an inner wall of the housing, a lid for closing an opening of the housing, or a center section. The leg member has a support portion for supporting a shaft provided on an axis of rotation of the movable swash plate. Accordingly, the movable swash plate is suspended in the housing for slanting or pivoting movement.
Claims36
An axle driving apparatus, comprising:
- a housing having a first section;
- an axle disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axle comprising a displacement hydraulic system having a movable swash plate and a cylinder block;
- a shaft disposed on said movable swash plate, said shaft having a longitudinal axis which is along an axis of slanting movement of said movable swash plate;
- and
- a leg positioned within said housing extending in a direction parallel to a rotary axis of said cylinder block, said leg member having a support for supporting said shaft on said movable swash plate, wherein said movable swash plate is supported in a suspended position within said housing.
3 more elements
An axle driving apparatus comprising:
- a housing;
- an opening disposed in said housing;
- a lid for closing said opening in said housing;
- an axle disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axle, said hydrostatic transmission comprising a displacement hydraulic system having a movable swash plate and a cylinder block;
- a shaft projecting from said movable swash plate positioned on an axis of slanting movement of said movable swash plate;
- and
- a leg disposed on said lid, positioned within said housing and extending in a direction parallel to a rotary axis of said cylinder block, said leg having a support for supporting said shaft of said movable swash plate, wherein said movable swash plate is supported by said leg in a suspended position within said housing.
5 more elements
An axle driving apparatus, comprising:
- a housing having a first section joined to a second section along a joint;
- an axle disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axle including a displacement hydraulic system having a movable swash plate, a cylinder block and a rotary axis substantially perpendicular to said joint;
- a shaft projecting from said movable swash plate positioned on an axis of slanting movement of said movable swash plate;
- and
- a leg disposed on an inner wall of said first housing section, said leg positioned within said housing and extending in a direction parallel to a rotary axis of said cylinder block, said leg having a support for supporting said shaft on said movable swash plate, wherein said movable swash plate is supported by said leg in a suspended position within said housing.
3 more elements
An axle driving apparatus, comprising:
- a housing;
- an axle disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axle comprising a displacement hydraulic system having a movable swash plate and cylinder block;
- a center section separably fixed in said housing, wherein said cylinder block is rotatably and slidably mounted on said center section;
- a pair of shafts projecting from said movable swash plate being positioned on an axis of slanting movement of said movable swash plate;
- and
- a leg disposed on said center section, positioned within said housing and extending in a direction parallel to a rotary axis of said cylinder block, said leg having a support for supporting said shafts on said movable swash plate, wherein said movable swash plate is supported in a suspended position within said housing.
4 more elements
An axle driving apparatus, comprising:
- a housing;
- axles disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axles comprising a displacement hydraulic system having a movable swash plate and a cylinder block,
- a shaft integral with said movable swash plate being positioned on an axis of slanting movement of said movable swash plate,
- an arm fixed to an end of said shaft portion, and
- a control shaft rotatably disposed in said housing extending in a direction parallel to said rotary axis of said cylinder blocks, said control shaft having an engaging portion engaging said arm for controlling slanting movement of said movable swash plate;
- and
- a leg member positioned in said housing extending in a direction parallel to a rotary axis of said cylinder block, said leg member having a support for supporting said shaft on said movable swash plate, wherein said movable swash plate is supported in an suspended position in said housing.
5 more elements
An axle driving apparatus comprising:
- a housing;
- axles disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axles comprising at least one displacement hydraulic system having a movable swash plate and a cylinder block,
- a shaft integral with said movable swash plate being positioned on an axis of slanting movement of said movable swash plate,
- an arm positioned above said shaft portion on said movable swash plate;
- a leg member positioned in said housing extending in a direction parallel to a rotary axis of said cylinder block, said leg member having a support for supporting said shaft on said movable swash plate, wherein said movable swash plate is supported in an suspended position in said housing, said leg member having an opening said arm of said movable swash plate being disposed in said opening;
- and
- a control shaft rotatably disposed in said housing extending in a direction parallel to said rotary axis of said cylinder blocks, said control shaft having an engaging portion engaging said arm for controlling slanting movement of said movable swash plate.
5 more elements
An axle driving apparatus, comprising:
- a housing;
- axles disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axles comprising a displacement hydraulic system having a movable swash plate and a cylinder block,
- a shaft integral with said movable swash plate being positioned on an axis of slanting movement of said movable swash plate, and
- an arm fixed to an end of the shaft portion;
- a swinging arm connected to said arm for pivoting around an axis parallel to said rotary axis;
- a spring in relation with said swinging arm for biasing said movable swash plate to a neutral position;
- a control shaft rotatably disposed in said housing extending in a direction parallel to said rotary axis of said cylinder block, said control shaft having an engaging portion engaging said arm for controlling slanting movement of said movable swash plate;
- and
- a leg member positioned in said housing extending in a direction parallel to a rotary axis of said cylinder block, said leg member having a support portion for supporting said shaft on said movable swash plate, wherein said movable swash plate is supported in an suspended position in said housing.
7 more elements
An axle driving apparatus, comprising:
- a housing having a first housing part and a second housing part separably connected with each other;
- an opening through an outside wall of said first housing part;
- a lid for closing said opening;
- a projection, disposed opposite to said lid, wherein said projection is integrally formed of said first housing part;
- an axle disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axle, said hydrostatic transmission comprising a displacement hydraulic system having a movable swash plate and a cylinder block;
- a center section separably fixed in said housing;
- and
- a pair of shaft projecting from both side surfaces of said movable swash plate positioned on an axis of slanting movement of said movable swash plate, wherein said movable swash plate is disposed between said projection and said lid so that said projection extends parallel to a rotary axis of said cylinder block, one of said pair of shafts being rotatably supported by said projection, and the other of said pair of shafts being rotatably supported by said lid.
6 more elements
An axle driving apparatus, comprising:
- a housing consisting of a first housing part and a second housing part separably connected with each other;
- a projection integrally formed of said first housing part so as to divide an interior of said first housing part;
- an axle disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axle, said hydrostatic transmission comprising a displacement hydraulic system having a movable swash plate and a cylinder block;
- a center section separably fixed to in said housing;
- and
- a pair of shafts projecting from both side surfaces of said movable swash plate positioned on an axis of slanting movement of said movable swash plate, wherein said movable swash plate is disposed adjacently to said projection so that said projection extends parallel to a rotary axis of said cylinder block, one of said pair of shafts being rotatably supported by said projection.
4 more elements
An axle driving apparatus, comprising:
- a housing consisting of a first housing part and a second housing part separably connected with each other;
- an opening through an outside wall of said first housing part;
- a lid for closing said opening;
- a projection, disposed opposite to said lid, said projection integrally formed of said first housing part so as to divide an interior of said first housing part, said projection extending toward the end of said first housing part in connection with said second housing part,
- an axle disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axle, said hydrostatic transmission comprising a displacement hydraulic system having a movable swash plate and a cylinder block;
- a center section separably fixed in said housing;
- and
- a pair of shafts projecting from both side surfaces of said movable swash plate on an axis of slanting movement of said movable swash plate, wherein said movable swash plate is disposed between said projection and said lid so that said projection extends parallel to a rotary axis of said cylinder block, one of said pair of shafts being rotatably supported by said projection, and the other of said pair of shafts being rotatably supported by said lid.
6 more elements
An axle driving apparatus, comprising:
- a housing having an opening;
- a lid for closing said opening;
- an axle disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axle, said hydrostatic transmission comprising a displacement hydraulic system having a movable swash plate and a cylinder block;
- a center section separably fixed in said housing;
- a pair of shafts projecting from both side surfaces of said movable swash plate positioned on an axis of slanting movement of said movable swash plate, wherein one of said pair of shafts is rotatably supported by said housing and the other of said pair of shafts is rotatably supported by said lid so as to be extended outwardly;
- and
- a control arm provided on the outwardly extending portion of said shaft.
5 more elements
An axle driving apparatus, comprising:
- a housing;
- an axle disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axle, said hydrostatic transmission comprising a displacement hydraulic system having a movable swash plate and a cylinder block of a hydraulic pump, wherein said hydraulic pump has a pump shaft;
- a center section separably fixed in said housing;
- a pair of shafts projecting from both side surfaces of said movable swash plate positioned on an axis of slanting movement of said movable swash plate by a control arm interconnected to one of said shafts, wherein said pair of shafts is disposed substantially perpendicular to the pump shaft;
- and
- a spring interconnected to said movable swash plate, wherein said spring biases said swash plate toward a neutral position.
4 more elements
An axle driving apparatus, comprising:
- a housing;
- an axle disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axle, said hydrostatic transmission comprising a displacement hydraulic system having a movable swash plate and a cylinder block;
- a center section separably fixed in said housing;
- and
- a pair of shafts projecting from both side surfaces of said movable swash plate positioned on an axis of slanting movement of said movable swash plate, wherein each of said pair of shafts is rotatably supported by said housing.
3 more elements
An axle driving apparatus, comprising:
- a housing;
- an axle disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axle, said hydrostatic transmission comprising a displacement hydraulic system having a movable swash plate, a center section separably fixed in said housing, and a cylinder block disposed on the center section;
- and
- a pair of shafts projecting from both side surfaces of said movable swash plate positioned on an axis of slanting movement of said movable swash plate, wherein each of said pair of shafts is rotatably supported by said housing.
2 more elements
An axle driving apparatus, comprising:
- a housing;
- an axle disposed within said housing;
- a hydrostatic transmission disposed within said housing for driving said axle, said hydrostatic transmission comprising a displacement hydraulic system having a movable swash plate and a cylinder block;
- a center section separably fixed in said housing;
- and
- a pair of shafts projecting from both side surfaces of said movable swash plate positioned on an axis of slanting movement of said movable swash plate, wherein said housing is dividable into two housing parts along the longitudinal direction of said pair of shafts, so that each of said two housing parts support said pair of shafts, respectively.
3 more elements
Dependencies are inferred from the claim text.