JPH0675941U - Sloping ground rail carrier - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a sloping land rail carrier that is comfortable to ride, and has excellent maneuverability and safety. A passenger seat 1 that can be tilted and displaced along a vertical surface in a traveling direction f1, and a horizontal holding device 16 that holds the seat 1 horizontally regardless of the tilted displacement of a vehicle body 4a in the front-rear direction. It is a sloping ground rail carrier equipped with and.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sloping land rail carrier used in agriculture, forestry, civil engineering, and the like.

[0002]

[Prior art]

 There are vehicles for sloping land that are guided by a rail provided on a sloping ground, but there is a vehicle for this type as shown in Fig. 2 in consideration of work efficiency. Providing a passenger seat 1 has been proposed (see, for example, Japanese Patent Laid-Open No. 52-22213).

In the figure, 2 is a rail, 3 is a tow vehicle equipped with a prime mover, 4 is a control section equipped with the passenger seat 1 fixed to a vehicle body 4a, and 5 is a cart.

[0004]

[Problems to be solved by the device]

 In the above-mentioned transport vehicle, when traveling along an inclined surface, the seat is also inclined due to the inclination displacement of the vehicle body, so that the riding comfort is poor and the maneuverability is poor, and the safety is impaired. There was a problem. It is an object of the present invention to provide an inclined ground rail carrier that can solve such problems.

[0005]

[Means and Actions for Solving the Problems]

 In order to achieve the above-mentioned object, in the inclined railroad carrier of the present invention, a passenger seat that can be freely tilted along a longitudinal plane in the traveling direction, and this seat is horizontally set regardless of the longitudinal tilt displacement of the vehicle body. A horizontal holding device is provided for holding.

According to this, the horizontal holding device changes the posture of the passenger seat horizontally even if the vehicle body is tilted while traveling on a sloping ground.

In the present invention described above, the passenger seat is not capable of turning around the upright axis provided on the vehicle body, and the direction of the seat can be arbitrarily switched back and forth. It is possible to set the passenger seat either forward or backward as desired when moving forward or backward.

[0008] Further, it is preferable that the passenger control seat, which is used as a control seat, has a control operation device that is supposed to be operated while sitting on the control seat, fixed to the same body. Both seats are held horizontally and their relative position is kept constant.

[0009]

【Example】

 FIG. 1 is a side view showing a control part of an inclined ground rail carrier according to the present invention. In the figure, parts that are substantially the same as those of the conventional example are given the same reference numerals.

The control section 4 has a front end connected to a tow truck (not shown) and a rear end connected to a cart (not shown).

The vehicle body 4a of the control section 4 is provided with two pairs of rollers 6, 6, 7, 7 which sandwich the upper and lower surfaces of the rail 2 which is installed at a height of about 1 m from the ground. In this case, the rail 2 is formed by a square tubular member or the like.

A standing shaft 9 is provided on the top plate 8 of the vehicle body 4 a, and a support plate 10 is mounted via the shaft 9 so as to be rotatable about the shaft 9.

Reference numeral 11 is a guide member provided with a circular guide groove 11 a and is fixed to the upper surface of the top plate 8. On the other hand, 12 is a guided member guided by the guide groove 11a, and is provided on the lower surface of the support plate 10. The guided member 12 may be a simple block piece, or may be a roller or the like.

Reference numeral 13 is a standing plate that is erected from the support plate 10, and a passenger seat 1 as a control seat is provided above the plate 10 through a support shaft 14 in a vertical direction toward the traveling direction f1 of the transport vehicle. It is mounted so that it can be tilted and displaced along the surface.

At this time, in addition to the seat portion 1a, the passenger seat 1 is configured such that the footrest portion 1b and the operation control device 15 are integrally fixed. Further, the operation control device 15 includes, for example, a main clutch for starting and stopping the towing vehicle, a brake pedal for stopping the vehicle, a speed change lever for changing the traveling torque, and a forward / backward change of the traveling direction of the vehicle. A switching lever for this purpose is provided if necessary.

Reference numeral 16 denotes a horizontal holding device for holding the passenger seat 1 horizontally even when the vehicle body 4a is tilted and displaced due to the inclination of the rail 2. In the illustrated example, the vehicle body 4a is for detecting the tilt of the vehicle body 4a. It is composed of an inclination detecting device 17 and a seat operating device 18 which operates the passenger seat 1 horizontally in relation to a detection signal of the detecting device 17.

Specifically, the vehicle body inclination detecting device 17 has a main body fixed to the vehicle body, and the body inclination is detected by finely and electrically confirming the position after the mercury provided inside is moved by the action of gravity. However, since it is inexpensive here, a pair of magnet switches 19a and 19b are provided in the same body as the passenger seat 1, and on the other hand, the support shaft is also provided in the same body as the passenger seat 1. 20 is provided and a swinging needle 21 is swingably mounted around the shaft 20 via the support shaft 20, a weight 22 is attached to the lower end of the swinging needle 21, and the magnet switches 19a and 19b are attached to the tip end thereof. The magnet 23 for turning on and off is fixed.

The seat actuating device 18 is provided with a support piece 24 fixed to the support plate 10 and, via a support shaft 25 attached to the support piece 24, a screw shaft rotating mechanism portion which is swingable around the shaft 25. A motor 27 and a motor 27 which are provided with a screw shaft rotating mechanism 26 and which are appropriately rotated in the forward and reverse directions through a control circuit device (not shown) in association with the detection signal of the detection device 17. The rotation transmission device 28 and the screw shaft 29 that is rotated via the transmission device 28 are used to transmit the rotation of the passenger seat 1. On the one hand, the extension piece 30 extended from the passenger seat 1 is used. A nut body 32 is provided so as to be rotatable and displaceable around the shaft 31 via a mounted support shaft 31, and the screw shaft 29 is screwed onto the nut body 32.

Explaining an example of the operation of the present embodiment configured as described above, the operator sits on the control seat 1 as indicated by a virtual line k. After that, the towing vehicle (not shown) is moved forward by operating the operation control device 15. As a result, the control unit 4 and the cart (not shown) are pulled by the towing vehicle and the transport vehicle travels in the direction of arrow f1.

For the sake of convenience of explanation, if the control section 4 suddenly reaches the ascending slope of the rail 2, the vehicle body 4a will be in an inclined state as shown in FIG. As shown by an imaginary line k1, it is in an inclined state. At this time, the oscillating needle 21 is kept in the vertical state by the gravitational force acting on the weight 22, and therefore, the state is as shown by the dotted line g. Therefore, the magnet 23 comes close to one of the magnet switches 19a and the magnet 23 is placed in the state. It will enter and operate. This entry operation causes the control circuit device (not shown) to perform a required operation, whereby the motor 27 is normally rotated and the screw shaft 29 is rotated in a required direction. Therefore, the nut body 32 is forcibly displaced upward due to the screwing action with the screw shaft 29, and the control seat 1 is swingably displaced in the arrow direction f2. When the control seat 1 is swung by a required angle and reaches a horizontal state, the magnet 23 separates from the magnet switch 19a and enters a state shown by a solid line in FIG. 1, so that the switch 19a is turned off and the motor 27 is turned on. Be stopped. Thus, the control seat 1 is restricted to the horizontally held state as shown by the solid line in the figure.

On the other hand, if the control section 4a suddenly reaches the descending inclination section of the rail 2, the vehicle body 4a and the control seat 1 are inclined in the opposite direction to the front. At this time, the run-out needle 21 tries to maintain the vertical state by the gravitational force acting on the weight 22 as in the front, so that the magnet 23 is close to the other magnet switch 19b as opposed to the front, and the magnet 23 is placed in the vertical position. It will enter and operate. This entry operation causes the control circuit device (not shown) to perform a desired operation, whereby the motor 27 is rotated in the reverse direction and the screw shaft 29 is rotated in the direction opposite to the previous direction. Therefore, the nut body 32 is forcibly oscillated and displaced downward by the screw action with the screw shaft 29, and the control seat 1 is oscillated and displaced in the direction opposite to the arrow direction f2. When the control seat 1 is again held horizontally in the state indicated by the phantom line k2, the magnet 23 separates from the magnet switch 19b in the same manner as described above, so that the switch 19b is turned off and the motor 27 operates. Be stopped. Thus, the control seat 1 is again restricted to the horizontally held state.

The above-described swing displacement of the control seat 1 is performed according to this even when the inclination angle of the vehicle body 4a slightly changes, and therefore the control seat 1 always maintains a horizontal state.

Such swinging displacement of the control seat 1 also causes the steering operating device 15 to swing together, and this means that the operator cannot move in a stable posture regardless of the tilt displacement of the vehicle body 4a. It makes it possible to operate without.

Then, when the transport vehicle is to be moved backward, the motor 27 is artificially operated to swing the control seat 1 to a position where it does not interfere with the vehicle body 4a, for example, to a position indicated by a virtual line k1, and then the support plate is moved. The rotation restricting means (not shown) of 10 is released and the support plate 10 is turned 180 degrees around the shaft 9 so that the rotation is restricted again by the rotation restricting means with the control seat 1 facing backward. Eggplant. As a result, the control seat 1 is held horizontally by the operation of the horizontal holding device 16 as described above. Since the steering operation device 15 is also changed to the same body as the control seat 1, the operator can make the carrier travel backward in the same manner as when the car travels forward.

The specific configuration of the horizontal holding device 16 in the above embodiment is an example, and the present invention is not limited to this.

[0026]

[Effect of device]

 According to the present invention configured as described above, the riding comfort is improved and the maneuverability is improved because the control seat is always kept horizontal even when the vehicle body tilts due to the change in the inclination of the rail while the transport vehicle is traveling. In addition to being excellent in safety, it also prevents falling from the passenger seat and is excellent in safety.

According to the second aspect of the invention, the passenger seat can be turned to any one of the front and rear directions, and the same effect as described above can be obtained in this case. According to the one described, the maneuverability is particularly excellent when the transport vehicle is traveling in reverse.

[Brief description of drawings]

FIG. 1 is a side view showing a control part of an inclined ground rail carrier according to the present invention.

FIG. 2 is a diagram showing a conventional rail carrier.

[Explanation of symbols]

 1 Passenger Seat (Control Seat) 4a Car Body 9 Standing Axis 15 Steering Control Device 16 Horizontal Holding Device f1 Travel Direction

Claims (3)

[Scope of utility model registration request] 1. A passenger seat (1) which can be tilted and displaced along a longitudinal surface in a traveling direction (f1) and a seat (1) which is horizontal regardless of a tilting displacement of a vehicle body (4a) in the front-rear direction. And a horizontal holding device (16) for holding the sloping ground rail carrier. 2. The passenger seat (1) is not turnable around a standing shaft (9) provided on the vehicle body (4a), and the same seat (1) is provided.
2. The sloping land rail carrier according to claim 1, wherein the direction of the vehicle is arbitrarily switched back and forth. 3. A sloping land rail carrier according to claim 1 or 2, further comprising a steering operation device (15) fixed to the passenger seat (1) which is intended to be operated by sitting on the passenger seat (1).