JPH05238362A - Mobile work vehicle body lift-up device - Google Patents

Abstract

PURPOSE:To perform raising and lowering of a machine body by means of a slight force by arranging a stand for elevating a machine body in the position of the center of gravity in the longitudinal direction of a machine body. CONSTITUTION:A support axle 10 is caused to laterally span in the vicinity of the position (a longitudinal balance position) of a center G of gravity in a longitudinal direction of a car body 2 having a running crawler 1 and supported rotatably around the axis thereof by means of a bearing. The base part of a stand arm 11 is engaged with the support axle 10 and a ground touching stabilizing holding member 12 is arranged in an L-shape as seen from a side to the tip of the arm to constitute a stand 13 for elevation. The stand 13 is arranged in a state that it is rockable in the advancing direction (a longitudinal direction) of a machine body around the axle 10. Thus, after a car body is lifted up with the aid of the stand 13 for elevation, the whole of a machine body can be stably supported in a ground touched state at two points, one of which is an auxiliary stand 14 at the front part of a car body and the other is an auxiliary stand 15 at the rear part thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body lift-up device for a mobile work vehicle having a traveling crawler at the bottom of the vehicle body.

[0002]

2. Description of the Related Art A mobile work vehicle with a traveling crower of this type is used to lift a vehicle body when inspecting and servicing the traveling crawler, replacing the crow label, or cleaning the traveling crawler. If the traveling crawler is levitated from the ground for a certain distance before performing the work, such work is easy and can be performed efficiently.

By the way, in the prior art, when lifting up the vehicle body, the front part of the vehicle body is first lifted by a lifting stand, and then the rear part of the vehicle body is lifted by another lifting means such as a jack. It was Therefore, it takes a lot of labor to lift the vehicle body and the work is not efficient.

[0004]

SUMMARY OF THE INVENTION The present invention is intended to solve such a problem, and in order to achieve this object, the following technical means were taken.

[0005]

That is, the technical means according to the present invention is to stand up between the vehicle body 2 having the traveling crawler 1 and the ground due to the traveling motion of the vehicle body to make the vehicle body ground. To install the lifting stand 13 that lifts up to
The elevating stand 13 is set near the center of gravity G position in the longitudinal direction of the machine body.

[0006]

When the vehicle body is lifted, the lower end of the stand 13 is tilted and grounded. Then, when the traveling crawlers 2 are driven by the operation of the traveling operation lever 7 to advance the machine body, the stand 13 bulges the ground and stands up, and the entire ground stabilization holding member 12 at the lower end is grounded. Holds a stable standing posture by which the vehicle body is lifted and the traveling crawler 1 floats.

In order to further stabilize the machine body in such a floating state above the ground, auxiliary stands 14 and 15 are provided at the front and rear positions of the lift stand 13 at the center of gravity of the machine body. As a result, if the auxiliary stand is held upright, the machine body can be supported more stably.

[0008]

As described above, according to the present invention, since the stand for raising and lowering the machine body is provided at the center of gravity in the longitudinal direction of the machine body, the machine body can be raised and lowered with a slight force. And
In particular, with such a means, the entire body can be lifted at a stretch, so, for example, by providing an auxiliary stand that can be raised and lowered freely, a simple operation of just raising it will suffice, It can be grounded and supported stably, and work efficiency can be improved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a combine as an example of a mobile work vehicle, in which a mowing unit 3 is provided in front of a vehicle body 2 equipped with a traveling crawler 1.
Is provided so as to be able to move up and down around the horizontal axis 4, and the threshing section 5 is provided on the vehicle body 2.
Is installed to configure the combine.

An operating section 6 is provided on one side of the reaping section 3, and an operating lever (HST lever of hydraulic continuously variable transmission) 7 and the like for controlling the forward and backward traveling of the machine body is provided in this operating section. The control box 8 it has is installed. On the lateral side of the threshing unit 5, a grain bagging processing device including a hopper 9 and the like is arranged.

A spindle 10 is installed laterally near the center of gravity G position (front-rear balance position) of the vehicle body 2 in the front-rear direction, and a bearing is rotatably provided around the shaft center. The base portion of the stand arm 11 is fitted on the support shaft 10, and a grounding stable holding member 12 is provided at the tip of the arm 11 so as to be L-shaped in a side view to form a lifting stand 13. The stand 13 is provided so as to be swingable in the machine traveling direction (front-back direction) about the support shaft 10.

Although the lifting / lowering stand 13 is arranged on both the left and right outer sides of the machine body, it can be swung upright and stored around the fulcrums P ₁ and P ₂ before and after the lifting / lowering stand 13 is sandwiched. Auxiliary stand 14, 1 pivotally connected to
5 are provided. Therefore, after the vehicle body is lifted up by the elevating stand 13, the entire body can be stably grounded by the front and rear two-point support of the auxiliary stand 14 at the front part of the vehicle and the auxiliary stand 15 at the rear part.

[0013]

[Embodiment] In the embodiment shown in FIGS. 4 to 7, after the front portion of the vehicle body 2 is lifted up by the stand 16, the rear portion of the vehicle body 2 is lifted up by the jack 17, and after the entire body is lifted up. Lifts the supporting arms 20 of the auxiliary wheels 18 and 19 housed therein by rocking around a shaft 21 and maintains a fixed state via a lock release mechanism 22, and then lowers the jack 17 and the stand 16. Then, the auxiliary wheels 18 and 19 are grounded so that the mobile work vehicle can be freely moved.
The lock release mechanism 22 is composed of a lock claw 22a, a locking claw 22b, an interlocking rod 22c, an operation handle 22d, and the like.

[Brief description of drawings]

FIG. 1 is a side view of a main part of a combine.

FIG. 2 is a side view of the main part of the combine.

FIG. 3 is a rear view of the main part.

FIG. 4 is a side view of a main part of a combine of another embodiment.

FIG. 5 is a side view of the main part.

FIG. 6 is a plan view of the main part.

FIG. 7 is a rear view of the main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running crawler 2 Car body 3 Mowing section 4 Horizontal axis 5 Threshing section 6 Driving section 7 Operating lever 8 Control box 9 Hopper 10 Spindle 11 Stand arm 12 Grounding stable holding member 13 Lifting stand 14 Auxiliary stand 15 Auxiliary stand

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Tosei Sei Yamashita No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Pref.Iseki Agricultural Machinery Co., Ltd. Technical Department (72) Inventor Miki Hirota 1 Yakura, Tobe Town, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. An elevating stand 13 is provided between a vehicle body 2 equipped with a traveling crawler 1 and the ground for raising the vehicle body to the ground by standing up due to a traveling operation of the machine body. The stand 13 is set in the vicinity of the center of gravity G in the longitudinal direction of the machine body.