Electric Work Vehicle
US-2016297293-A1 · Oct 13, 2016 · US
Electric work vehicle
US9616736B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9616736-B2 |
| Application number | US-201514956670-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 2, 2015 |
| Priority date | Apr 9, 2015 |
| Publication date | Apr 11, 2017 |
| Grant date | Apr 11, 2017 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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Abstract
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An electric work vehicle includes a motor unit including a left motor and a right motor arranged side by side in a transverse direction of the vehicle and connected to a vehicle frame, a left transmission mechanism extending rearward in a fore-and-aft direction of the vehicle from a left side of the left motor to transmit power from the left motor to a left rear wheel, a right transmission mechanism extending rearward in the fore-and-aft direction from a right side of the right motor to transmit power from the right motor to a right rear wheel, and a battery unit housed in a battery casing. The battery casing includes an upper casing extending rearward of the left transmission mechanism and the right transmission mechanism from a top of the motor unit, and a lower casing projecting downward from a bottom of a rear half of the upper casing.
First claim
Opening claim text (preview).
What is claimed is: 1. An electric work vehicle comprising: a left rear wheel and a right rear wheel; a vehicle frame supporting the left rear wheel and the right rear wheel; a motor unit including a left motor and a right motor arranged side by side in a transverse direction of the vehicle and connected to the vehicle frame; a left transmission mechanism extending rearward in a fore-and-aft direction of the vehicle from a left side of the left motor to transmit power from the left motor to the left rear wheel; a right transmission mechanism extending rearward in the fore-and-aft direction of the vehicle from a right side of the right motor to transmit power from the right motor to the right rear wheel; a battery casing including an upper casing extending rearward of the left transmission mechanism and the right transmission mechanism from a top surface of the motor unit, and a lower casing projecting downward from a bottom of a rear half of the upper casing; and a battery unit housed in the battery casing. 2. The electric work vehicle according to claim 1 , wherein at least part of the battery casing enters a space defined by the motor unit, the left transmission mechanism and the right transmission mechanism as viewed from the top. 3. The electric work vehicle according to claim 1 , wherein the battery casing has a front part positioned above the motor unit, and a rear part entering a space defined by the motor unit, the left transmission mechanism and the right transmission mechanism as viewed from the top. 4. The electric work vehicle according to claim 1 , wherein the battery casing is positioned rearward of a driver's seat. 5. The electric work vehicle according to claim 1 , wherein the battery unit is tightly housed in the battery casing. 6. The electric work vehicle according to claim 5 , further comprising a circulation system for circulating air within the battery casing. 7. The electric work vehicle according to claim 6 , wherein the circulation system includes a circulation fan for forcing air to circulate within the battery casing. 8. The electric work vehicle according to claim 1 , wherein the battery casing assumes a solid figure having an L-shape as viewed from a side, in which a small cube is removed from a larger cube, the small cube being shaped to receive the motor unit, the left transmission mechanism and the right transmission mechanism. 9. The electric work vehicle according to claim 1 , wherein the motor unit, the left transmission mechanism and the right transmission mechanism are provided in an integrated casing structure.
Assignees
Inventors
Classifications
Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel · CPC title
by means of separate power sources · CPC title
the motor moving together with the vehicle body, i.e. moving independently from the wheel axle · CPC title
comprising more than one electric motor · CPC title
the electric storage means · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9616736B2 cover?
- An electric work vehicle includes a motor unit including a left motor and a right motor arranged side by side in a transverse direction of the vehicle and connected to a vehicle frame, a left transmission mechanism extending rearward in a fore-and-aft direction of the vehicle from a left side of the left motor to transmit power from the left motor to a left rear wheel, a right transmission mech…
- Who is the assignee on this patent?
- Kubota Kk
- What technology area does this patent fall under?
- Primary CPC classification B60K1/04. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 11 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).