JP2000043646A - Articulate vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an articulate vehicle which can attain easy confirmation of a rear view even if a rear view mirror is small, and a refined styling design. SOLUTION: This articulate vehicle is provided with a detector 29 detecting a steering angle or a detector 32 detecting a rotational angle (articulate angle) between a preceding vehicle body 3 and a subsequent vehicle body 5. The angle of a rear view mirror 15 changes, interlocking with the steering angle or the articulate angle. The angle of the rear view mirror 15 to a vehicle body is changed, thus it is possible to always ensure the rear view of a vehicle lateral to the subsequent vehicle body 5 even if the vehicle body is bent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an articulated vehicle having a front vehicle body provided with a cab and a rear vehicle body rotatably connected to the front vehicle body. In particular, the present invention relates to an articulated vehicle in which a rearview mirror can be easily viewed from the rear even if the rearview mirror is small and a styling design is clear.

[0002]

2. Description of the Related Art The prior art will be described by taking an articulated dump truck as an example. In some dump trucks, the vehicle body is divided into two front and rear parts, and the front and rear body parts are bent at the center of rotation. Such a body is called an articulated type. In articulated dump trucks, instead of steering the front wheels to change direction,
Many push and pull between the front and rear bodies. The type in which the vehicle body is integrally steered by the front wheels is called a rigid type.

[0003] Articulated dump trucks are:
Since the vehicle width is small and the turnability is good, the area of the temporary road at the construction site can be reduced. Therefore, there are merits such as minimization of environmental destruction and easy movement around a narrow construction site.

[0004]

However, in the articulated dump truck, when the vehicle body is bent, the side surface of the rear vehicle body often blocks the rear view from the driver's cab of the front vehicle body. In particular, it has been pointed out that the rearview mirror only reflects the side surface of the rear vehicle body, and the rearview cannot be performed by the rearview mirror.

Therefore, the following measures have been taken.
Both have problems. (1) A large rearview mirror is overhanged from the vehicle body and attached at several locations. In this case, since the rearview mirror projects from the vehicle body, there has been a problem that the rearview mirror easily hits an obstacle and is damaged. (2) The driver's cab is moved to one of the left and right sides of the vehicle body, and the field of view on one side is preferentially secured. However, in this case, of course, the view on the opposite side is sacrificed. (3) The front end of the vessel (luggage compartment) of the rear vehicle body is cut largely obliquely. In this case, the load capacity is reduced by the volume of the cut vessel.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a vehicle of an articulated type in which a rearview mirror can be easily recognized even if the rearview mirror is small and a styling design can be neatly provided. And

[0007]

In order to solve the above problems, an articulated vehicle according to the present invention comprises a front body (3) provided with a driving device including a steering handle (27). An articulated vehicle (1) comprising: a rear body (5) rotatably connected to the front body (3); a detector (29) for detecting a steering angle; And a rearview mirror (15) attached to the front vehicle body, the angle of which changes in conjunction with the steering angle set. Alternatively, a detector (32) for detecting a rotation angle (articulated angle) between the front vehicle body (3) and the rear vehicle body (5) is provided, and the angle of the rearview mirror (15) is linked to the articulated angle. May be changed. Further, an image sensor such as a CCD may be used in place of the rearview mirror (15), and a monitor screen for displaying an image acquired by the image sensor may be provided in the driver's cab of the front vehicle body.

That is, the angle formed between the rearview mirror and the vehicle body is changed in conjunction with the steering angle or the articulated angle, so that even when the vehicle body is bent, the field of view behind the vehicle on the side of the rear vehicle body is always ensured. . As a result, the following effects can be obtained. (1) At the time of steering, the space outside the vessel at the rear of the vehicle is always reflected on the rearview mirror, so that safety and driving operability are good. (2) There is no need for a rear-view mirror that overhangs to look backward, and there is little risk of hitting an obstacle. That is, the rearview mirror can be made compact. (3) There is no need for a large overhanging rearview mirror, which does not hinder the maintenance of the vehicle. (4) There is no need for a large overhanging rearview mirror, and the styling design of the vehicle is not hindered.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view schematically showing the entire configuration of an articulated dump truck according to one embodiment of the present invention. (A) is a state in which the vehicle body is in a straight line,
(B) shows a state in which the vehicle body is bent as a result of steering (a state with an articulated angle). The dump truck 1 of this embodiment includes a front vehicle body 3 and a rear vehicle body 5. The front vehicle body 3 includes a driver's cab 25, front wheels 21, an engine, a radiator, and a transmission (not shown) on a chassis 30. In the cab 25, a driving device such as a steering handle 27 is provided. Rear body 5
Includes a chassis 33 having a rear wheel 37 and a vessel 35. The vessel 35 is an open box at the top for storing earth and sand. The vessel 35 is mounted on a chassis 33.

The front vehicle body 3 and the rear vehicle body 5 are
To be rotatable. An oscillator cylinder (not shown) for pushing and pulling is provided between the two vehicle bodies. When the steering handle 27 is turned, the articulated cylinder expands and contracts, causing rotation around the pin 31 between the front vehicle body 3 and the rear vehicle body 5 to change the traveling direction of the vehicle.

The dump truck 1 is provided with a steering angle detector 29 for detecting a steering angle of a steering handle 27 or an articulated angle detector 32 for detecting an articulated angle between the front and rear vehicle bodies. I have. Both detectors may be of an electric type such as a potentiometer, a hydraulic type, a lever link type, or the like (detailed examples will be described later).

Rearview mirrors 15R and 15L are provided on the left and right in front of the cab 25 of the front vehicle body 3. Each rearview mirror 15 is held via a mirror actuator 13 on a stay 11 attached to the upper surface of the vehicle body. The mirror actuator 13 rotates the rear-view mirror 15 with respect to the stay 11 in a horizontal plane, and despite the change in the articulate angle between the front vehicle body 3 and the rear vehicle body 5, the mirror actuator 13 can appropriately move to the side of the rear vehicle body. Ensuring rear visibility. Details of a specific structure example of the mirror actuator will be described later.

In the state shown in FIG. 1A in which the vehicle body is straight, the rearview mirror 15 is angled such that the rear of the vehicle beside the vessel 35 can be seen from the driver's eye point 23. Note that the alternate long and short dash line in the figure indicates the driver's line of sight (center line) reflected by the rear-view mirror 15. On the other hand, in the state shown in FIG. 1B in which the driver turns the steering wheel 27 to form an articulated angle on the vehicle body, the left rear-view mirror 15L rotates outward by the action of the actuator 13 and the line of sight (dot-dash line) ) Is directed from the side of the vessel 35 to the rear of the vehicle. If the rearview mirror 15L does not rotate, the line of sight is blocked toward the vessel 35 as shown by the broken line, and the driver cannot see behind the vehicle. In the present invention, such a situation is avoided, and a good rear view is ensured.

FIG. 2 is a schematic perspective view showing an example (motorized type) of a rearview mirror angle adjusting mechanism. Rearview mirror 1
5, the mirror actuator 13
Is adjusted in the horizontal plane. The actuator 13 is fixed to a tip of a stay 11 protruding from the vehicle body. In this example, the actuator 13 includes an electric motor and a speed reducer (not shown). Actuator 13
Is controlled by the controller 41.

As described above, the chassis 30 of the front vehicle body and the chassis 33 of the rear vehicle body are rotatably connected by the articulated pins 31. An articulated angle detector 32, such as a potentiometer, is attached to the pin 31.
The rotation angle of 33 is detected. The signal of the detected articulated angle is sent to the controller 41, and the controller gives a command corresponding to the articulated angle signal to the mirror actuator 13 to rotate the mirror 15 by an appropriate angle.

FIG. 3 is a schematic perspective view showing an example (hydraulic type) of the rear-view mirror angle adjusting mechanism. (A) shows the entire configuration, and (B) shows details of the mirror actuator. An articulated angle detection cylinder 55 composed of a hydraulic cylinder is mounted between the front and rear chassis 30, 33. The tail of the cylinder 55 is rotatably attached to a fulcrum 57 on the front chassis 30.
On the other hand, the tip of the cylinder rod 53 is
It is rotatably attached to the upper fulcrum 51. When an articulated angle occurs between the front and rear chassis 30, 33, the distance between the two fulcrums 51, 57 changes, and the cylinder rod 53 expands and contracts. The oil in the detection cylinder 55 is exchanged with the mirror actuator 61 through the hydraulic pipe 59 by that amount.

The mirror actuator 61 has a mirror driving cylinder 63. The cylinder 63 is in oil communication with the above-described articulated angle detection cylinder 55 via a pipe 59. The tip of the rod 65 of the mirror driving cylinder 63 is connected to the mirror 15 via a lever 67, a pin 68, and a rib 69. Therefore, the mirror driving cylinder 63 operates in conjunction with the operation of the articulated angle detection cylinder 55, and the mirror 1
5 rotates in a horizontal plane.

FIG. 4 is a schematic perspective view showing an example (control cable type) of the rearview mirror angle adjusting mechanism. (A) shows the entire configuration, and (B) shows details of the mirror actuator. An articulated angle detection tie rod 73 is attached between the front and rear chassis 30, 33. The tail of the tie rod 73 is rotatably attached to a lever 75 that rotates along a fulcrum 77 on the front chassis 30. On the other hand, the tip of the tie rod 73 is rotatably attached to a fulcrum 71 on the rear chassis 33. When an articulated angle occurs between the front and rear chassis 30, 33, the two fulcrums 71, 77
, The tie rod 73 rotates the lever 75 about the fulcrum 77. The rotation of the lever 75 extends and retracts the control cable 79, and moves the cable-type actuator 81 attached to the mirror 15.

The cable type actuator 81 has a rod 85. This rod 85 is linked with the above-mentioned articulated angle detection tie rod 73 and cylinder 55 via a control cable 79. The tip of the rod 85 is a mirror 1 via a lever 87, a pin 88, and a rib 89.
5 is connected. Therefore, the control cable 79 is operated in conjunction with the operation of the articulated angle detecting tie rod 73, and the mirror 15 is rotated in the horizontal plane accordingly.

Although the present invention has been described with reference to the drawings of the embodiments, it is needless to say that the present invention is not limited to these examples, and various modifications are possible. For example,
An image sensor such as a CCD may be provided in place of the rearview mirror, and a monitor screen for displaying an image obtained by the image sensor may be provided in the driver's cab of the vehicle ahead.

[Brief description of the drawings]

FIG. 1 is a plan view schematically showing an overall configuration of an articulated dump truck according to an embodiment of the present invention. (A) is a state in which the vehicle body is in a straight line, and (B)
Is a state in which the vehicle body is bent as a result of steering (a state with an articulated angle).

FIG. 2 is a schematic perspective view showing an example (electrically driven) of a rearview mirror angle adjusting mechanism.

FIG. 3 is a schematic perspective view showing an example (hydraulic type) of a rearview mirror angle adjusting mechanism. (A) shows the overall configuration,
(B) shows details of the mirror actuator.

FIG. 4 is a schematic perspective view showing an example of a rearview mirror angle adjusting mechanism (control cable type). (A) shows the entire configuration, and (B) shows details of the mirror actuator.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Articulated dump truck 3 Front body 5 Back body 11 Mirror stay 13 Mirror actuator 15 Rearview mirror 21 Wheels 23 Driver's eye point 25 Driver's cab 27 Steering handle 29 Angle detector 30 Front body chassis 31 Articulated pin 32 Articulated angle Detector 33 Rear body chassis 35 Vessel 37 Wheel 41 Controller 51 Support point 53 Cylinder rod 55 Detection cylinder 57 Support point 59 Hydraulic piping 61 Hydraulic actuator 63 Cylinder 65 Rod 67 Lever 68 Pin 69 Rib 71 Support point 73 Tie rod 75 Lever 77 Support point 79 Control cable 81 Cable type actuator 85 Rod 87 Lever 88 Pin 89 Rib

Claims (3)

[Claims] A front body (3) provided with a driving device including a steering handle (27), and a rear body (5) rotatably connected to the front body (3).
An articulated vehicle (1) comprising: a detector (29) for detecting a steering angle; and a rearview mirror mounted on the front vehicle body, the angle of which changes in conjunction with the detected steering angle ( 15) An articulated vehicle, comprising: 2. A front body (3) provided with a driving device including a steering handle (27), and a rear body (5) rotatably connected to the front body (3).
An articulated vehicle (1) comprising: a detector (32) for detecting a turning angle (articulated angle) between the front vehicle body (3) and the rear vehicle body (5).
And a rearview mirror (1) attached to the front vehicle body, the angle of which changes in accordance with the detected articulate angle.
5) An articulated vehicle, comprising: 3. A CC instead of the rearview mirror (15).
The articulated vehicle according to claim 1 or 2, further comprising an image sensor such as D, and a monitor screen for displaying an image acquired by the image sensor is provided in a driver's cab of a front vehicle body.