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Operator's seat of work vehicle

Operator's seat of work vehicle description/claims

1. Field of the Invention

The present invention relates to a structure of a rotatable seat arranged in a work vehicle.

2. Background Art

A work vehicle called Backhoe Loader is conventionally known in which a front loader is attached to the front part of the tractor vehicle body, and a backhoe is attached to the back part.

In such work vehicle, a seat frame is generally formed into a box shape, and access to under the seat frame in time of maintenance is made by removing the cover configured into a great number of layers. The space under the seat is formed narrow since the seat frame is a box shape.

Furthermore, a storage part for storing instruction manual and the like is installed on the back surface of the operator's seat or on the side of the seat in the conventional work vehicle.

Patent document 1 discloses one example of an operator's seat of the backhoe loader.

In the backhoe loader disclosed in the relevant document, the operator's seat is arranged in a freely forward and backward reversely rotatable manner on a tractor vehicle body by way of a reverse rotation support device, where the operator's seat faces the front when the tractor is traveling or when using the front loader, and the operator's seat faces the back when using the backhoe according to the reverse rotation support device. The reverse rotation device of the operator's seat is configured by parallel links and a turntable.

Piping cannot be arranged in the vicinity of the operator's seat since the operator's seat is reversely rotated by a complex mechanism.

Patent document 1: Japanese Laid-Open Patent Publication No. 5-229377

However, in the tractor disclosed in patent document 1, the space between the operator's seat and a safety frame is narrow, it is troublesome when the operator reversely rotates the operator's seat and again sits on the operator's seat, and a great amount of trouble is needed when reversely rotating the operator's seat. In particular, labor is required to again sit on the reversely rotated operator's seat in the tractor in which a canopy is configured around the operator's seat.

Furthermore, taking out from and putting in to the storage part become difficult if the storage part is arranged around the operator's seat or on the back surface of the operator's seat. If the storage part is arranged on the side of the operator's seat, there is a possibility that the storage part may be missed when reversely rotating the operator's seat. If the storage part is arranged on the back surface of the operator's seat, taking out from and putting in to the storage part become difficult.

The object of the present invention includes increasing storability around the operator's seat and reducing labor for reverse rotation in the work vehicle in which the operator's seat is formed to be reversely rotatable.

That is, in an operator's seat of a work vehicle of the present invention, an operator's seat support member is disposed on a machine frame of the work vehicle so as to be rotatably formed on the support member, and a storage part rotated together with the operator's seat is installed on a front lower seat surface of the operator's seat.

Furthermore, in an operator's seat of a work vehicle of the present invention, an operator's seat support member is disposed on a machine frame of the work vehicle so as to be rotatably formed on the support member, a seating surface of the operator's seat is slidable towards the front and the back, and a rotating center axis of the operator's seat at the central position of the slide of the operator's seat is approximately on the seat index point of the operator's seat.

Moreover, in an operator's seat of a work vehicle of the present invention, an operator's seat support member is disposed on a machine frame of the work vehicle so as to be rotatably formed on the support member, and holding parts of hydraulic hose are installed on the support member to hold the hydraulic hose along the side face of the support member.

In an operator's seat of a work vehicle of the present invention, an operator's seat support member is disposed on a machine frame of the work vehicle so as to be rotatably formed on the support member, and a storage part rotated together with the operator's seat is installed on a front lower seat surface of the operator's seat, and thus access to the storage part from the sitting state is facilitated irrespective of the position of the operator's seat.

Furthermore, in an operator's seat of a work vehicle of the present invention, an operator's seat support member is disposed on a machine frame of the work vehicle so as to be rotatably formed on the support member, a seating surface of the operator's seat is slidable towards the front and the back, and a rotating center axis of the operator's seat at the central position of the slide of the operator's seat is approximately on the seat index point of the operator's seat, and thus the stricture of the operator's seat is simplified, and the assembly property of the operator's seat and the support member is enhanced. The access to under the operator's seat is facilitated, and the operator's seat can be rotated while sitting thereon through a natural operation when rotating the driver's seat.

• Provisional Patent
• Utility Patent

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