JPH05278650A - Off-road traveling vehicle - Google Patents

Abstract

PURPOSE:To improve the maneuverability and safety during running on an off-road area by providing a pair of right and left drive wheel sections and right and left driven wheel sections provided with three wheels at respective vertex sections of an equilateral triangle-like bearing plate, and arranging a propeller thrust type pressing mechanism and gimbal ring type driving seat on a frame. CONSTITUTION:A pair of right and left drive wheel sections 1 provided with three drive wheels 3 at respective vertex sections of an equilateral triangle-like bearing plate 2 are provided in the rear end of a device, and a drive roller 4 simultaneously contacting each of these three drive wheels 3 is supported by a rear section frame 6. A traveling drive mechanism 9 including an engine is mounted on the center section of the rear section frame 6, and pressing mechanisms 12 having propellers 11 are arranged at both ends of the rear frame 6 through an arm 10. In addition, a drive ring section 27 is provided at the lower end of the vertical member 18 which is extended diagonally downward from the head of the half circle-like fork frame 17 connected to the center section of the rear frame 6, and a gimbal ring type driving seat comprising inside and outside gimbal rings 23 and 25 is also provided in the frame 17 through a horizontal pin 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a vehicle for rough terrain.

[0002]

2. Description of the Related Art Conventionally, for example, a tractor is known as a traveling vehicle for rough terrain such as forests.

However, such a traveling vehicle has the following drawbacks. (1) Since it is not possible to pass the uneven rocky areas scattered in the forests, it is necessary to bypass these and use a helicopter, so the economical efficiency of moving personnel and machinery is low. (2) If the degree of unevenness on uneven terrain is significant, the device may fall over, so safety cannot be said to be sufficient. (3) When the degree of irregularity on an uneven terrain is significant, the posture of the vehicle body fluctuates greatly, which makes it difficult to maneuver, which not only reduces the ride comfort of the operator, but also causes the vehicle body to fall.

[0004]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above circumstances, and it is possible to travel without falling even on a significantly rough terrain and the posture of the cockpit does not change. It is an object of the present invention to provide a traveling vehicle for rough terrain that is excellent in maneuverability, safety, economy and riding comfort.

[0005]

To this end, the present invention provides a mechanism for adjusting the included angle between the rear end of the front frame and the front end connection of the rear frame pivotally attached to each other by a lateral connecting pin,
Driven wheels that are pivotally supported on the front left and right lower ends of the front frame and pivotally supported on the tops of rotatable and triangular triangular bearing plates, respectively, and the left and right central portions of the two forks of the front frame. A gimbal ring-type cockpit consisting of an outer gimbal ring whose left and right ends are pivotally supported and an inner gimbal ring whose front and rear ends are pivotally supported by the outer gimbal ring, and a pair of left and right attached to the front part of the rear frame. A propeller thrust type pressing mechanism, and drive wheels pivotally supported on the top of a rotatable equilateral triangular bearing plate which is pivotally supported in a pair on the rear side of the rear frame. To do.

[0006]

According to this structure, the following actions are performed. (1) The device can travel while being pressed against the surface of uneven terrain by the action of a pair of propellers. (2) The device can run while being pressed against uneven ground. (3) The cockpit of the device can always maintain a vertical posture.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of the present invention will be described. In the plan view of FIG. 1 and the side view of FIG. 2, 1 (FIG. 2) is a drive wheel which is arranged in pair at the rear end of the apparatus. In the department
This is a drive wheel 3 axially supported at each vertex of the vertical equilateral triangular bearing plate 2 and these three drive wheels 3 respectively.
It is formed by one driving roller 4 which is arranged so as to abut on the peripheral surface of and is axially supported by the central portion of the bearing plate 2 via a bearing. Reference numeral 5 (FIG. 1) is a pair of left and right bearings respectively arranged at the left and right ends of a rear frame 6 composed of a connecting arm portion 15 and the like extending diagonally forward in the rear center portion of an E-shaped plane. The drive roller 4 is rotatably supported via 6a (a rear view of the portion shown in FIG. 3), and the drive shaft 7 extending in the left-right direction in synchronism with this is also rotatably supported. Reference numeral 8 (side view of FIG. 4) is a differential gear box which is supported by the central portion of the rear frame 6 and pivotally supports the central portion of the drive shaft 7, and includes a drive mechanism 9 for traveling formed by an engine, a torque converter and the like. Are connected. Reference numeral 10 (FIG. 1) is an inverted L-shaped arm projectingly provided on the top surfaces of both sides of the rear frame 6 and having their upper ends extending forward, the pressing mechanism 12 having a propeller 11 at its tip, and the outer circumference of the propeller 11. The rectifying ducts 13 that loosely surround the are respectively attached. 1
Reference numerals 4 and 15 respectively denote a shank portion which forms a rear half portion of a front frame, which will be described later, and a connecting arm portion which forms an upper half portion of the rear frame 6, which are pivotally mounted on the central portion of the rear frame 6 by the same horizontal pin 16. Reference numeral 17 denotes a horizontal semicircular bifurcated frame portion that is integrally connected to the shank portion 14, and 18 is a vertical member portion that is integrally connected to both front portions of the bifurcated frame portion 17 and extends substantially downward. 14, bifurcated frame 17
And both vertical member parts 18 cooperate to form the front frame 19. Reference numeral 20 denotes a hydraulic cylinder whose rear end is pivotally attached to the front end of the connecting arm portion 15 via a horizontal pin 21, and its front end is pivotally attached to the rear portion of the bifurcated frame portion 17 via a horizontal pin 22. Reference numeral 23 denotes a horizontal outer gimbal ring pivotally attached to each front portion of the bifurcated frame portion 17 via a pair of left and right horizontal pins 24 having a lock mechanism. Reference numeral 25 denotes a front and rear end of the outer gimbal ring 23 having a horizontal lock mechanism. An inner gimbal ring with a horizontal upper surface pivotally attached via a pin 26,
The inner gimbal ring 25 is composed of a horizontal ring and a cross-shaped semi-circular member whose upper end is connected to the horizontal ring.
Equipped with control equipment. 26a is both gimbal rings 2
It is a gimbal ring-type cockpit formed in cooperation with 3, 25 and the like. Denoted at 27 (FIG. 2) are left and right paired driven wheels arranged at the front end of the device. These driven wheels are rotatably supported by respective apexes of a vertical equilateral triangular bearing plate 28. It is formed of wheels 29. Reference numeral 30 (a partial plan view of FIG. 5) is a bearing that rotatably supports the bearing plate 28, and the top portion thereof is the steering member 3 attached to the lower end of the vertical member portion 18.
1. The bearing 32 is pivotally supported via the bearing. 33 (front view of part of FIG. 6), one end is pivotally supported by the steering member 31 via a vertical pin 34, and the other end is an arm 35 protruding from the bearing 30.
The hydraulic cylinder for steering is pivotally supported by a vertical pin 36.

In such an apparatus, the propeller 11
The thrust force pushes the device against the ground, and the hydraulic cylinder 20 adjusts the included angle α (FIG. 2) between the front frame 19 and the rear frame 6 in accordance with the inclination angle of the ridges and depressions of the ground. The inner gimbal ring 25 and the like are appropriately set so as not to come into contact with the uneven portion of the ground. Then, the drive wheels 3 perform power running in the front-rear direction, the hydraulic cylinders 33 adjust the direction of the driven wheels 29 to select the traveling course, and the bearing plates 2 and 28 rotate according to the unevenness of the ground, respectively. Two of the one wheels make a ground run. The operator of the gimbal ring type pilot seat 26a or the like can always orient the vertical center line vertically by the action of the gimbal ring regardless of the inclination angle of the wall surface. At that time, for example, when the hydraulic cylinder 20 is extended, the posture of the rear frame 6 is changed and the directing direction of the pressing mechanism 12 can be adjusted as shown by the chain line in FIG.

According to the apparatus of this embodiment, the following effects can be obtained. (1) The device can run while being pressed against the surface of an uneven terrain by the action of a pair of propellers, and therefore, the cliff, etc. where the device is low can be overcome without detouring, which improves the economical efficiency. (2) The device can run while being pressed against the ground on uneven terrain, and therefore there is no risk of the device tipping over, improving safety. (3) The cockpit of the device can always maintain a vertical posture, which improves the maneuverability and riding comfort of the operator and the maintainability of the instruments.

[0010]

In summary, according to the present invention, a mechanism for adjusting the included angle between the rear end of the front frame and the front end connecting portion of the rear frame pivotally connected to each other by the lateral connecting pin, and the front frame. The driven wheels, which are pivotally supported on the lower left and right sides of the front part, are pivotally supported on the tops of the equilateral triangular bearing plates which are rotatable and rotatable, and the left and right ends are pivoted on the right and left sides of the center part of the two forks of the front frame. A gimbal ring-type cockpit consisting of a supported outer gimbal ring and an inner gimbal ring whose front and rear ends are pivotally supported by the outer gimbal ring, and a propeller thrust type attached to the front part of the rear frame in a pair on the left and right. Left and right 1 on the rear of the rear frame with the pressing mechanism
By equipping the tops of the equilateral triangular bearing plates that are rotatably supported by each other and are rotatable, the driving wheels are rotatably supported on the tops of the bearing plates. Posture does not change, so maneuverability,
INDUSTRIAL APPLICABILITY The present invention is extremely useful industrially because a traveling vehicle for rough terrain having excellent safety, economy and riding comfort is obtained.

[Brief description of drawings]

FIG. 1 is an overall plan view showing an embodiment of the present invention.

FIG. 2 is an overall side view of FIG.

FIG. 3 is a partial rear view showing the driving wheel portion taken along the line III-III in FIG.

FIG. 4 is a side view taken along the line IV-IV in FIG.

5 is a partial plan view showing a driven wheel portion of section V in FIG. 1. FIG.

6 is a partial front view taken along the line VI-VI of FIG.

[Explanation of symbols]

 1 Drive Wheel Part 2 Bearing Plate 3 Drive Wheel 4 Drive Roller 5 Bearing 6 Rear Frame 6a Bearing 7 Drive Shaft 8 Differential Gear Box 9 Driving Drive Mechanism 10 Arm 11 Propeller 12 Pressing Mechanism 13 Rectifying Duct 14 Shank Part 15 Connection Arm Part 16 Horizontal Pin 17 Bifurcated Frame Part 18 Vertical Member 19 Front Frame 20 Hydraulic Cylinder 21 Horizontal Pin 22 Horizontal Pin 23 Outer Gimbal Ring 24 Horizontal Pin 25 Inner Gimbal Ring 26 Horizontal Pin 27 Driven Wheel 28 Bearing Plate 29 Driven Wheel 30 bearing 31 steering member 32 bearing 33 hydraulic cylinder 34 vertical pin 35 arm 36 vertical pin α angle of depression

Claims (1)

[Claims] 1. A mechanism for adjusting a flank angle formed by a rear end of a front frame and a front end connecting portion of the rear frame pivotally connected to each other by a lateral connecting pin, and shafts at front left and right lower ends of the front frame, respectively. A driven wheel pivotally supported and supported on each top of a rotatable triangular bearing plate, and an outer gimbal ring whose left and right ends are pivotally supported at right and left central portions of the two forks of the front frame, respectively. A gimbal ring-type cockpit including an inner gimbal ring whose front and rear ends are pivotally supported by the outer gimbal ring, a propeller thrust type pressing mechanism attached to the front part of the rear frame in a left-right pair, and the rear frame. A traveling vehicle for rough terrain, comprising: a pair of left and right rearwardly-supported pair of rotatable triangular equilateral bearing plates and drive wheels pivotally supported at respective tops thereof.