IP Library Granted Patent US 7,162,816
Granted Patent B2
US 7,162,816 · App. 10/685,581 · Granted Jan 16, 2007

Work vehicle with tilt floor

Assignees: Komatsu Ltd.; Komatsu Zenoah Co.
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Quick Facts
Patent No.
US 7,162,816
App. No.
10/685,581
Granted
Jan 16, 2007
Kind
B2
Abstract

A work vehicle with a tilt floor, which is capable of improving the maintainability around an engine and the operability and comfortability of a driver's seat and its periphery, is provided. The work vehicle with a tilt floor includes a hinge mechanism which is provided on the front end of the tilt floor to enable to turn the tilt floor toward the front of the vehicle body, the rear of the tilt floor is formed to be higher than the front of the tilt floor so to cover the headroom of an engine disposed on the rear of the vehicle body, and an operator seat is disposed on the top surface at the rear of the tilt floor.

Claims (9)

1. A work vehicle provided with a tilt floor, wherein a hinge mechanism is provided on a front end of the tilt floor to enable turning of the tilt floor toward a front of a vehicle body, a rear of the tilt floor is formed to be higher than the front of the tilt floor so to cover a headroom of an engine disposed on a rear of the vehicle body, an operator seat is disposed on a top surface at the rear of the tilt floor, and a rear end of the tilt floor is attached to an upper part of a counterweight located at a rear of the work vehicle.

2. The work vehicle provided with a tilt floor according to claim 1 , wherein the tilt floor is provided with a torsion bar and a gas spring cylinder for assisting and controlling a force for filling the tilt floor.

3. The work vehicle provided with a tilt floor according to claim 1 , comprising lock means and double lock means for holding the tilt floor in a tilted state.

4. The work vehicle provided with a tilt floor according to claim 1 , wherein a canopy is disposed behind the tilt floor, and the rear of the tilt floor is attached to the counterweight via a spacer on which the canopy is attached.

5. The work vehicle provided with a tilt floor according to claim 1 , wherein a canopy is disposed behind the tilt floor, the canopy is attached to the counterweight, and the rear of the tilt floor is attached to the canopy.

6. The work vehicle provided with a tilt floor according to claim 1 , wherein a canopy is disposed behind the tilt floor, and the canopy and the rear of the tilt floor are attached to the counterweight.

7. A work vehicle provided with a tilt floor, wherein a hinge mechanism is provided on a front end of the tilt floor to enable turning of the tilt floor toward a front of a vehicle body, a rear of the tilt floor is formed to be higher than a front of the tilt floor so to cover a headroom of an engine disposed on a rear of the vehicle body, an operator seat is disposed on a top surface at the rear of the tilt floor, a canopy is disposed behind the tilt floor, and the rear of the tilt floor is attached to a counterweight via a spacer which has tap holes on its top surface for mounting the canopy, and tap holes on its bottom surface for mounting the counterweight and tilt floor supports at both ends.

8. The work vehicle provided with a tilt floor according to claim 7 , comprising lock means and double lock means for holding the tilt floor in a tilted state.

9. A work vehicle provided with a tilt floor, wherein a hinge mechanism is provided on a front end of the tilt floor to enable turning of the tilt floor toward a front of a vehicle body, a rear of the tilt floor is formed to be higher than a front of the tilt floor so to cover a headroom of an engine disposed on a rear of the vehicle body, an operator seat is disposed on a top surface at the rear of the tilt floor, lock means are disposed to engage a lock bar of a lock arm, which is supported to pivot by a vehicle body frame, with a lock groove of a lock plate fixed to the tilt floor so to hold the tilt floor in a state turned toward the front of the vehicle body, and double lock means are disposed to restrict a relative movement of the lock plate and the lock arm so to prevent the lock bar from falling off the lock groove.

Assignments (3)
CHANGE OF NAME/MERGER Recorded Mar 23, 2012
From: KOMATSU UTILITY CO., LTD.
To: KOMATSU LTD.
Reel/Frame 027919/0338 →
CHANGE OF NAME/MERGER Recorded Mar 21, 2012
From: KOMATSU ZENOAH CO.
To: KOMATSU UTILITY CO., LTD.
Reel/Frame 027899/0163 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 30, 2004
From: OTSUKA, KINICHI; OGIHARA, TOSHIFUMI; YOKOO, KATSUMI; SHIMIZU, SACHIO
To: KOMATSU LTD; KOMATSU ZENOAH CO
Reel/Frame 015523/0694 →
Priority Claims (3)
JP 2002-308696 · Oct 23, 2002 · national
JP 2003-142648 · May 20, 2003 · national
JP 2003-334158 · Sep 25, 2003 · national
Continuity (1)
Related Publication 20040172863A1 · Sep 9, 2004