JPH079906Y2 - Industrial vehicle with driver's seat - Google Patents

Description

TECHNICAL FIELD The present invention relates to an industrial vehicle such as a lift truck with a driver's seat.

2. Description of the Related Art Conventionally, as an industrial vehicle of this type, for example, the actual development 60
The structure shown in Japanese Patent No.-72496 is the mainstream. That is, the front part of the main body has a fork, and the driver's seat is provided on the main body so that the seat is located between the front wheels and the rear wheels. According to this conventional type, there is no problem when the lift by the fork is not so high, but in the case of the model where the lift is high as in recent years, the driver of the seat looks up directly, so work is done. I can't grasp it easily and accurately. Therefore, recently, there has been provided a vehicle in which the driver's seat is slid rearward and positioned above the rear wheel to loosen the visual angle.

[Problems to be Solved by the Invention] According to the above-mentioned type in which the driver's seat is arranged in the rear, the driver's seat is close to the steering axle (rear wheel), so that rolling during steering becomes large and the comfortability is poor. Becomes Further, for example, when the vehicle makes a right turn A as shown in FIG. 5, the centrifugal force B acts on the entire vehicle, so that the centrifugal force b acts on the driver's seat C as well. The resultant force G of the centrifugal force and the body weight F acts on, and is swayed.

An object of the present invention is to provide an industrial vehicle with a driver's seat that does not cause the driver to feel rolling or centrifugal force.

Means for Solving the Problems In order to achieve the above object, an industrial vehicle with a driver's seat of the present invention has a frame body disposed above a rear wheel on a main body, and the driver's seat is mounted on the frame body in a longitudinal axis. It is attached so that it can swing around your heart.
A damper device is arranged between the driver's seat and the main body side.

According to the structure of the present invention, when a rolling phenomenon occurs in the rear portion of the main body, that is, on the side of the frame, the frame and the driver's seat oscillate relative to each other about the longitudinal axis, and the driver's seat is in an upright posture. Then, due to the restraining action and the elastic action of the damper device, the integrated state of the frame body and the driver's seat can be maintained while absorbing the rolling. When a lateral centrifugal force is applied by turning, the driver's seat swings in the direction of the centrifugal force around the longitudinal axis, and the driver himself always receives only a vertical force.

Embodiment An embodiment of the present invention will be described below with reference to FIGS.

Reference numeral 1 denotes a lift truck, which is an example of an industrial vehicle, and a main body 2 thereof has a pair of left and right front wheels 3 and a rear portion thereof has a pair of left and right steering rear wheels 4. A mast 5 is arranged at the front end of the main body 2, and an elevating body 6 supported and guided by the mast 5 is provided with an engagement tool 7 for lifting the container in a cantilever manner (note that various action parts such as forks are considered). Is provided). Rear wheel 4 on the body 2
In the upper position, the gate-shaped frames 8 in a front view are erected in a front-rear pair at a predetermined interval. Reference numeral 9 denotes a driver's seat, which is configured by providing a door 11 on the side of the box body 10. A pair of front and rear brackets 12 are provided upright on the upper part of the box body 10 and from the center of the width. Then, the beam portion of the frame body 8 and the bracket 12 are connected by a pin 13 in the front-rear direction, so that the driver's seat 9 is attached to the frame body 8 so as to be swingable around a longitudinal axis 14. Between the both side plates of the box body 10 and the body 2, damper devices 15 are arranged so as to be inclined.

According to the above-described embodiment, when the rolling phenomenon occurs on the rear portion of the main body 2, that is, on the frame body 8 side, the phantom line (a) in FIG.
As shown in (b), the driver's seat 9 also tries to shake greatly, but at this time, the frame body 8 and the driver's seat 9 relatively swing about the longitudinal axis 14 to absorb the above-described rolling. The driver's seat 9 is left in an upright posture. Further, due to the restraining action and the elastic action of the damper device 15, the integrated state of the frame body 8 and the driver's seat 9 can be maintained while absorbing the rolling motion, and the rolling motion due to inertia or reaction can be prevented.

Further, for example, when the vehicle turns right 20 as shown in FIG. 3, the centrifugal force 21 acts on the entire lift truck 1, so that the centrifugal force 21a also acts on the driver's seat 9. At this time, the driver's seat 9 Will swing about the longitudinal axis 14 in the direction of the centrifugal force 21a. Therefore, the total force of centrifugal force 21a and weight 24 is 25
Acts vertically on the inclined seat 22,
The force received by the driver 23 of 22 is also in the vertical direction.

FIG. 4 shows another embodiment of the present invention. That is, the rear frame body 8 is formed slightly higher, and the tilt cylinder 16 is disposed between the frame body 8 and the mast 5.

Effect of the Invention According to the present invention having the above-described configuration, the driver's seat is arranged at the rear, and the form is such that it can be easily and accurately grasped even during high-elevation work, but has good habitability so that the driver does not feel rolling during steering. It can be something. Also, when turning, it is possible to prevent the driver himself from being shaken sideways with only vertical force applied.
A stable driving sensation can be given.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention, FIG. 1 is a side view, FIG. 2 is a rear view, and FIG. 3 is a rear view showing a turning state,
FIG. 4 is a side view showing another embodiment, and FIG. 5 is a rear view of a conventional example. 1 …… Lift truck (industrial vehicle) 2 …… Main body, 4
…… Rear wheel, 8 …… Frame, 9 …… Seat, 10 …… Box body, 11 …… Access door, 13 …… Pin, 14 …… Front and rear axis,
15 …… Damper device.

Claims (1)

[Scope of utility model registration request] 1. A frame body is provided above a rear wheel on a main body, and a driver's seat is attached to the frame body so as to be swingable around a longitudinal axis, and a space between the driver's seat and the main body side. An industrial vehicle with a driver's seat, characterized in that a damper device is installed in the vehicle.