JPS58224868A - Barrel bendable carrier - Google Patents

Abstract

PURPOSE:To prevent the tumble of a car body to the utmost during its turning by moving wheels in the direction stably supporting the car body against the ground in defiance of the tumbling force of the car body. CONSTITUTION:The driving force from an engine 3 is fed to a transmission 5 fitted to the lower section of a front car body frame 14 through a clutch, and it is conveyed to the right and left front wheels 6, the rotary axis P2 of which is located near the rear end of the frame 14, through an axle case 17 from a front wheel differential mechanism 16. During the turning of the car body, the front wheels 6 are positioned in the rear of the up-and-down sway axis P1 of a front car body 7 and a rear car body 11 so that the front wheels 6 are largely stretched outward from the turning locus of the rear wheels 10 when both car bodies are swayed relatively to each other during the turning of the car body.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a front vehicle body equipped with front wheels and a tower driving section;
Relating to a folding type working vehicle in which a rear vehicle body equipped with rear wheels is connected to allow relative rocking around the vertical axis, and a steering operation device for relatively rocking the two vehicle bodies is provided in the tower driving section. .

Conventionally, this type of foldable transport vehicle, as shown in Figure @6,
The vertical swing axis rp5 between the front body (7) and the rear body surface was located in the darkness between the front wheel (6'l) and the rear wheel (1d), and the axis between the front body (7) and the rear body surface. When the vehicle body is turned by relatively rocking the rear wheels (6), the rear wheels (no+) pass on the turning trajectory of the front wheels (6).
This transport vehicle has the disadvantage that the centrifugal force that occurs when making a sharp turn causes the vehicle body to overturn outward, and there is a real risk of the vehicle body overturning, especially when transporting heavy objects. It was.

In view of the above-mentioned circumstances, an object of the present invention is to move the wheels in a direction that stably supports the vehicle body against the ground against the rollover force of the vehicle body when the vehicle body is turning, and to prevent the vehicle body from rolling over when turning as much as possible. be.

A characteristic feature of the present invention is that, in the above-mentioned folding type transportation, the swing axes of both vehicle bodies are arranged ahead of the rotation axes of the front wheels.

The effects of the characteristic configuration of the present invention are as follows. In other words, when the front body and the rear body are swung relative to each other in order to turn the car body, the front wheels are placed in front of the rotation axis of the front wheels, so the front wheels are It becomes a bill that protrudes outward more than the turning trajectory of the
The vehicle body is stably supported on the ground by counteracting the force of rolling the vehicle body due to centrifugal force during turning with the front wheels that protrude outward. This has made it possible to prevent the vehicle from rolling over when turning or turning.

Next, embodiments of the present invention will be described in detail with reference to illustrative figures.

As shown in Figs. 1 and 2, the tower is equipped with a driving section consisting of a handle (1), a driver's seat (2), etc., an engine (3), a hydraulic unit (4), and a transmission. (5), and a pair of left and right front wheels +81,
+1! The front vehicle body (7) is mounted on axles e and 17, and the loading platform (8) is provided so that it can be driven and dumped freely via a hydraulic cylinder (9).
lol is mounted on the shaft to form the rear body 01>, and the front body (
7) and the rear vehicle body (11) so as to be relatively swingable around the vertical axis (P,), and both vehicle bodies (7), old)
In addition, a steering hydraulic cylinder (1), which is an example of a steering operation tool (fl), is connected in conjunction with a steering hydraulic cylinder (1) that expands and contracts according to the operating acid as the steering wheel rotates. It consists of a type transport vehicle.

In order to connect the front body (7) and the rear body (11), the body frame I of the front body (7) is configured to have a U-shape in side view, and the front body frame 0 is shaped like a U-shape in side view. A swinging connector bell η that swings around the vertical axis (Pl) is provided in the deep part of the U-shaped recess, and the swinging connector G′lJr/C is the vehicle body frame 0 of the rear body O1. The forward extending end of the shaft is connected and fixed so that the front vehicle body (7) and the rear vehicle body (river) can swing relative to each other around the vertical axis (P).

Furthermore, the driving force from the engine (3) mounted on the front body frame circle is applied to the front body frame HIF m K
An input signal is input to the attached transmission (6) via the clutch from the front wheel differential mechanism θφ provided at the bottom of the transmission (5) to the front vehicle body via the axle case aη. Rotation axis CP near the rear end of frame 04,
) is located on the left and right front wheels +61, +61.
It is made of Japanese cypress so that power can be transmitted.

Furthermore, from the mission (5), there is an intermediate PTO at the rear.
Axis θ~ and rear vehicle body u+) Drive force transmission axis 0 to full
(2), and connect its driving force transmission shaft (l) to the rear vehicle body (rear wheel differential mechanism (a) installed at 1
- The drive force is transmitted from the rear wheel differential mechanism 1 to the left and right rear wheels @tool, lot, and from the rear wheel differential mechanism @t2d to the rear. The power from the power take-off shaft (to) that protrudes from the rear p'r
With the above configuration in which the o-axis (b) is protruded, when the car body turns, the front ML body (7) and the rear car body i11+
The front wheel fil is located behind the vertical swing axis (PL').
, ffl+ is positioned, and when both vehicles are relatively swung when the vehicle turns, the front 11L wheels ff1l, f6j
The rear wheel +101 is configured to protrude significantly outward from the turning trajectory of the flol.

Note that the above-configured transport vehicle can also be used with the following shapes.

As illustrated in FIG.
l), and there are swing-type auxiliary IK wheels (a) and (a) located near the rear end of the front body frame a.
is provided to prevent the front vehicle body (7) from tipping backward even when the rear vehicle body (11) is removed. However, if the center of gravity of the front vehicle is located ahead of the front wheels (6), it is necessary to provide VC#-i and the auxiliary vehicle 1iIll- in front.

And, like this, the independent front body (71K).

As shown in Fig. 5, a rear vehicle body (11 ) can be attached to the frame (c) to form a ground-based work machine.

In that case, it should protrude rearward from the transmission (6). It is configured to transmit driving force to the ground work machine via a PTO shaft (from the IS to the transmission).

Also, the rear body with working equipment (equipment) (after connecting the river, remove the auxiliary * and wheels □□□.

[Brief explanation of the drawing]

The drawings show an embodiment of the foldable transport vehicle according to the present invention, in which Fig. 1 is an overall side view, Fig. 2 is an overall plan view, Fig. 3 is a schematic plan view in a turning state, and Fig. 4 is a front view. Side view of the part, 5
The figure is an overall side view showing another embodiment, and Figure 6 is a schematic plan view showing a conventional example of whirlpool carving. (6)...Front 11L@, α (to)...Boarding and driving section, (7)...Front body, (10)...Rear wheel,
(11)... Rear body, CP, )... Vertical axis center, Field... Lateral operating tool, (P,)... Rotation axis center.

Claims (1)

[Claims] The front vehicle body 17) with the front wheels +61, fil and tower driving part, and the rear vehicle body (17) with the rear vehicle @10) can be relatively oscillated around the vertical axis (Pl). A folding-type work vehicle is provided with a steering operation tool (1) connected to the vehicle bodies +71 and +lot for relatively rocking the two vehicle bodies +71 and +lot in the tower driving section θj, wherein the rotation of the front wheels fi+ and [81] A folding type transport vehicle characterized in that a swinging axis (Pl) of both the vehicle bodies [71, 11) is arranged forward of the axis (P).