Work vehicle

Patent metadata

Field	Value
Publication number	US-10351184-B2
Application number	US-201415024468-A
Country	US
Kind code	B2
Filing date	Sep 29, 2014
Priority date	Sep 30, 2013
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

A working vehicle where a front axle case is supported by two front axle brackets includes a body flame formed by disposing beams at a prescribed interval, by welding reinforced plates to plate faces of the beams which face to each other, and by welding both end parts of one of the front axle brackets to the reinforced plates; and a front hitch formed by welding both end parts of the other front axle bracket to both end parts of a plate member which are bent. The front hitch is attached to the body flame such that the two front axle brackets are opposed to each other.

First claim

The invention claimed is:

1. A working vehicle where a front axle case is supported by two front axle brackets, comprising:
a body frame formed by disposing beams at a prescribed interval, by welding reinforced plates provided for receiving load by the front axle brackets to plate faces of the beams which face to each other, and by welding both end parts of one of the front axle brackets to the reinforced plates; and
a front hitch formed by welding both end parts of the other front axle bracket directly to both end parts of a plate member which are bent;
wherein the front hitch is attached to the body frame such that the two front axle brackets are opposed to each other;
wherein the front axle case is supported by penetrating a shaft part of the front axle case to a support hole of the front axle bracket;
wherein the shaft part of the front axle case is monolithically formed with the front axle case.

2. The working vehicle according to claim 1 , wherein
end parts of the reinforced plates are extended to an end part of the body frame, and
the front hitch is attached to the body frame through extended end parts of the reinforced plates.

3. The working vehicle according to claim 2 , wherein
a transmission case is fixed on the inside of the beams, by first pins and second pins, which are disposed at a prescribed interval,
a first attaching hole where the first pin is closely inserted and a second attaching hole where the second pin is loosely inserted are formed on each of the beams,
the first pin inserted into the first attaching hole is fixed to the transmission case, and
the second pin inserted into the second attaching hold is fixed to the transmission case and each of the beams.

4. The working vehicle according to claim 1 , wherein
a transmission case is fixed on the inside of the beams, by first pins and second pins, which are disposed at a prescribed interval,
a first attaching hole where the first pin is closely inserted and a second attaching hole where the second pin is loosely inserted are formed on each of the beams,
the first pin inserted into the first attaching hole is fixed to the transmission case, and
the second pin inserted into the second attaching hold is fixed to the transmission case and each of the beams.

5. The working vehicle according to claim 4 , wherein
the second attaching hold is formed in a circular arch shape centered about the first pin.

6. The working vehicle according to claim 4 , wherein
the second attaching hold is formed in a circular arch shape centered about the first pin.

7. A working vehicle where a front axle case is supported by two front axle brackets, comprising:
a body frame comprising beams spaced apart at a prescribed interval based on reinforcement plates welded to plate faces of the beams which face to each other, and based on both end parts of one of the front axle brackets welded to the reinforcement plates; and
a front hitch comprising a plate member which is bent and has each of a first end and a second end welded directly to corresponding end parts of the other front axle bracket;
wherein the front hitch is attached to the body frame such that the two front axle brackets are opposed to each other.

8. A working vehicle comprising:
a front axle case;
a first front axle bracket and a second front axle bracket coupled to the front axle case, the first front axle bracket opposed to the second front axle bracket;
a body frame comprising a first beam and a second beam;
a first reinforcement plate coupled to the first beam;
a second reinforcement plate coupled to the second beam; and
a front hitch comprising a bent plate member having a first end coupled to the first beam and a second end coupled to the second beam;
wherein:
the first front axle bracket is directly coupled to the first reinforcement plate and to the second reinforcement plate; and
the second front axle bracket is directly coupled to the first end of the front hitch and to the second end of the front hitch.

9. The working vehicle of claim 8 , wherein:
the first reinforcement plate is positioned between the first beam and a first end of the first front axle bracket;
the second reinforcement plate is positioned between the second beam and a second end of the first front axle bracket;
the first end of the front hitch is positioned between the first beam and a first end of the second front axle bracket; and
the second end of the front hitch is positioned between the second beam and a second end of the second front axle bracket.

10. The working vehicle of claim 9 , wherein:
the first reinforcement plate is positioned between the first end of the front hitch and the first beam; and
the second reinforcement plate is positioned between the second end of the front hitch and the second beam.

11. The working vehicle of claim 9 , further comprising:
a first bolt that extends through the first beam, the first reinforcement plate, and the first end of the front hitch; and
a second bolt that extends through the second beam, the second reinforcement plate, and the second end of the front hitch.

12. The working vehicle of claim 9 , wherein:
the first reinforcement plate is welded to a plate face of the first beam;
the second reinforcement plate is welded to a plate face of the second beam;
the first end of the first front axle bracket is welded to the first reinforcement plate;
the second end of the first front axle bracket is welded to the second reinforcement plate;
the first end of the second front axle bracket is welded to the first end of the front hitch; and
the second end of the second front axle bracket is welded to the second end of the front hitch.

Assignees

• Yanmar Co Ltd

Inventors

• Hanafusa Masahiro
• DAIYAKUJI Taihei
• Yoshioka Terunobu

Classifications

• B60K17/00

  Arrangement or mounting of transmissions in vehicles · CPC title

• B62D49/06 Primary

  adapted for multi-purpose use · CPC title

• B62D49/085

  Counterweight · CPC title

• B62D21/186 Primary

  for building site vehicles or multi-purpose tractors (tracked vehicles B62D55/10; tractors in general B62D49/00; building site vehicles in general E02F; lift-trucks B66F) · CPC title

• B62D49/04

  modified to take pushing devices · CPC title