Operator's seat supporting device for service vehicle

• US 20050073184A1
• Filed: 08/19/2004
• Published: 04/07/2005
• Est. Priority Date: 08/22/2003
• Status: Abandoned Application

• Current Assignee: Komatsu Ltd.
• Original Assignee: Komatsu Ltd.
• Inventors: Tsuji, Hideki, Tamaru, Masatake
• Application Number:
  US10/922,268
• Publication Number:
  US 20050073184A1
• Time in Patent Office: Days
• US Class Current: 297/284.100
• CPC Class Codes: B60N 2/501 actively controlled suspension, e.g. electronic control
• CPC Class Codes: B60N 2/502 attached to the base of the seat B60N2/504 takes precedence
• CPC Class Codes: B60N 2/505 Adjustable suspension including height adjustment
• CPC Class Codes: B60N 2/508 Scissors-like structure
• CPC Class Codes: B60N 2/509 Seat guided by slides or the like
• CPC Class Codes: B60N 2/522 characterised by dampening means
• CPC Class Codes: B60N 2/527 using liquids
• CPC Class Codes: B60N 2/544 Compression or tension springs B60N2/542 takes precedence

Abstract

An operator'"'"'s seat (6) is mounted via a posture adjusting mechanism (40) on a supporting plate (3) supported by at least two damper cylinders (50, 30) at a place where an operator'"'"'s seat is installed, and at least one of the damper cylinders (50, 30) is used as a damper cylinder (50) for reducing vibrations by making use of a magnetic rheological fluid.

Claims

1. An operator'"'"'s seat supporting device for a service vehicle, wherein at least biaxially supported by damper cylinders each are arranged along an axial line parallel to a vertical line passing through a shoulder of an operator sitting on a seat, and the operator'"'"'s seat supporting device includes a posture adjusting mechanism provided by the sections supported by the damper cylinders and the seat.

2. An operator'"'"'s seat supporting device for a service vehicle, wherein an operator'"'"'s seat is mounted via a posture adjusting mechanism on a supporting plate supported by at least two damper cylinders at a place where an operator'"'"'s seat is installed, and at least one of the damper cylinders reduces vibrations by making use of a magnetic rheological fluid.

3. The operator'"'"'s seat supporting device for a service vehicle according to claim 2, wherein, in the damper cylinder for reducing vibrations by making use of the magnetic rheological fluid, a buffering cylinder and a control cylinder for controlling vibrations with the magnetic rheological fluid are monolithically formed.

4. The operator'"'"'s seat supporting device for a service vehicle according to claim 2, wherein the damper cylinder has a biaxial slide supporting structure, and a coil spring is provided in the inner side or in the outer side from a shaft body having dual-shafts.

5. The operator'"'"'s seat supporting device for a service vehicle according to claim 3, wherein the damper cylinder has a biaxial slide supporting structure, and a coil spring is provided in the inner side or in the outer side from a shaft body having dual-shafts.

6. The operator'"'"'s seat supporting device for a service vehicle according to claim 2, wherein an operator'"'"'s seat rotating mechanism is provided on the supporting plate supported by the damper cylinders.