Working machine

Patent metadata

Field	Value
Publication number	US-9828744-B2
Application number	US-201615264138-A
Country	US
Kind code	B2
Filing date	Sep 13, 2016
Priority date	Sep 30, 2014
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

A working machine includes a travel device, a motive power transmission device configured to transmit a motive power to the travel device, a transmission case configured to house the motive power transmission device, and a hydraulic operation fluid tank disposed on an upper surface of the transmission case.

First claim

What is claimed is:

1. A working machine comprising:
a machine body;
a travel device;
a first motive power transmission device configured to transmit a motive power to the travel device;
a second motive power transmission device configured to transmit a motive power to the travel device;
a first transmission case configured to house the first motive power transmission device, the first transmission case being disposed on the machine body;
a second transmission case configured to house the second motive power transmission device, the second transmission case being disposed on the machine body; and
a hydraulic operation fluid tank disposed on an upper surface of the first transmission case or on an upper surface of the second transmission case.

2. The working machine according to claim 1 , comprising:
a first boom arranged on a right side of the machine body, the first boom being capable of swinging upward and down ward; and
a second boom arranged on a left side of the machine body, the second boom being capable of swinging upward and down ward, wherein
the hydraulic operation fluid tank includes:
a fluid filler tube having a fluid filler opening; and
an fluid gauge, and

the fluid filler opening and the fluid gauge are disposed below the booms.

3. The working machine according to claim 1 , wherein
the machine body includes:
a side member,

the transmission case includes:
the side member; and
a cover arranged on a side of the side member, the side being opposite to the travel device.

4. A working machine comprising:
a machine body;
a cabin mounted being capable of swinging upward and downward;
a travel device;
a first motive power transmission device configured to transmit a motive power to the travel device;
a second motive power transmission device configured to transmit a motive power to the travel device;
a first transmission case configured to house the first motive power transmission device, the first transmission case being disposed on the machine body;
a second transmission case configured to house the second motive power transmission device, the second transmission case being disposed on the machine body; and
a plurality of gas springs disposed on an upper surface of the first transmission case or on an upper surface of the second transmission case, the gas springs being configured to lift up the cabin.

5. The working machine according to claim 4 , comprising:
a first pin configured to pivotally support a lower end portion of the plurality of gas springs; and
a second pin configured to pivotally support an upper end portion of the plurality of gas springs.

6. The working machine according to claim 4 , comprising:
a restriction member configured to restrict stretching and shortening of at least one of the plurality of gas springs, the restriction member having two positions; one of the two positions is a restricting position where the restriction member contacts to the gas spring to restrict the stretching and shortening of the gas spring, and the other one of the two positions is an allowance position where the restriction member is released from the restricting position to allow the stretching and shortening of the gas spring.

7. The working machine according to claim 4 , wherein
the machine body includes:
a side member,

the transmission case includes:
the side member; and
a cover arranged on a side of the side member, the side being opposite to the travel device.

8. A working machine comprising:
a machine body;
a cabin mounted being capable of swinging upward and downward;
a travel device;
a first motive power transmission device configured to transmit a motive power to the travel device;
a second motive power transmission device configured to transmit a motive power to the travel device;
a first transmission case configured to house the first motive power transmission device, the first transmission case being disposed on the machine body;
a second transmission case configured to house the second motive power transmission device, the second transmission case being disposed on the machine body;
a hydraulic operation fluid tank disposed on an upper surface of the first transmission case or on an upper surface of the second transmission case, and
a plurality of gas springs disposed on the upper surface of the first transmission case or on the upper surface of the second transmission case, the gas springs being configured to lift up the cabin.

9. The working machine according to claim 8 , comprising:
a first boom arranged on a right side of the machine body, the first boom being capable of swinging upward and down ward; and
a second boom arranged on a left side of the machine body, the second boom being capable of swinging upward and down ward, wherein
the hydraulic operation fluid tank includes:
a fluid filler tube having a fluid filler opening; and
an fluid gauge, and

the fluid filler opening and the fluid gauge are disposed below the booms.

10. The working machine according to claim 8 , comprising:
a front wheel disposed on the travel device; and
a rear wheel disposed on the travel device, wherein
the fluid filler opening and the fluid gauge are disposed between the front wheel and the rear wheel.

11. The working machine according to claim 8 , comprising:
a first pin configured to pivotally support a lower end portion of the plurality of gas springs; and
a second pin configured to pivotally support an upper end portion of the plurality of gas springs.

12. The working machine according to claim 8 , comprising:
a restriction member configured to restrict stretching and shortening of at least one of the plurality of gas springs, the restriction member having two positions; one of the two positions is a restricting position where the restriction member contacts to the gas spring to restrict the stretching and shortening of the gas spring, and the other one of the two positions is an allowance position where the restriction member is released from the restricting position to allow the stretching and shortening of the gas spring.

13. The working machine according to claim 8 , wherein
the machine body includes:
a side member,

the transmission case includes:
the side member; and
a cover arranged on a side of the side member, the side being opposite to the travel device.

Assignees

• Kubota Kk

Inventors

• Sumiyoshi Ryohei
• Imai Hideo
• Kubo Noriyoshi
• Anami Hiroyuki
• Hata Hiroyuki
• Yasuda Toyoaki
• Kuroda Masahiro
• Higashiyama Kohei
• Yamashita Yuji
• Tajima Satoshi
• Mori Shunichiro
• Ido Hayato
• Takemura Toshihiko
• Hisatake Shinsuke
• Tamaki Hajime
• Koyamatsu Hiroshi

Classifications

• E02F9/166

  movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins (seats for vehicles in general B60N2/00) · CPC title

• E02F3/3414

  the arms being pivoted at the rear of the vehicle chassis, e.g. skid steer loader · CPC title

• B60K5/02

  with the engine main axis, e.g. crankshaft axis, substantially in or parallel to the longitudinal centre line of the vehicle · CPC title

• E02F9/0883

  Tanks, e.g. oil tank, urea tank, fuel tank (for vehicles in general B60K15/00) · CPC title

• E02F9/0891

  Lids or bonnets or doors or details thereof (doors for cabins E02F9/163 takes precedence; for motor vehicles B62D25/10) · CPC title