JPH061209A - Mobile work vehicle body lift-up device - Google Patents

Abstract

(57) [Summary] [Purpose] To realize a device that allows the left and right stands to contact the ground evenly at the time of full up, and that is capable of performing stable and reliable full up even on slippery ground. It is in. [Structure] An elevating stand 15 for standing up between a vehicle body 2 equipped with a traveling crawler 1 and the ground due to a traveling operation of the vehicle body and lifting the vehicle body up a certain distance above the ground is provided on both left and right outer sides of the vehicle body. In addition, the left and right lifting stands 15 are arranged such that the standing angle to the ground of the stand located on the side opposite to the driving control section 9 side is smaller than that of the stand located on the driving control section 9 side. It is characterized in that a phase difference is provided.

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 for inspection and maintenance of the traveling crawler, replacement of the crowbar label or cleaning of the traveling crawler. The running crawler is levitated above the ground for a certain distance. By the way, conventionally, a stand is used as a means for levitating the traveling crawler to the ground, but this kind of stand is arranged near the driving control part and on both the left and right outer sides of the vehicle body, and the left and right have the same phase. Met. Therefore, when the vehicle body is fully raised, there is no problem in a place where the ground does not slip, but in a slippery place, the stand on the driving control side is stepped on with a foot, but at this time, the left and right joint parts are interlocking. Due to the tolerance (backlash), the stand on the side opposite to the driving control side was delayed in standing up, and it was not stable and could not be fully up.

[0003]

In view of the above points, the present invention is intended to solve the problem, and in particular, the present invention eliminates the conventional defects by providing a phase difference between the left and right lifting stands. I will try to solve it. To achieve this object, the present invention takes the following technical means.

[0004]

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 operation of the machine body and keep the vehicle body constant from the ground surface. Lifting stand 15 that lifts up a distance
Are arranged on both the left and right outer sides of the vehicle body, and the left and right lifting stands 15 of the stand located on the side opposite to the driving control section 9 side are located on the driving control section 9 side. It is characterized in that a phase difference is provided so as to be smaller than that.

[0005]

When the vehicle body is lifted, the lower end of the stand 15 is tilted and grounded. Therefore, the operator puts his / her foot on the upper surface of the grounding stability holding member 14 provided at the lower end of the stand so that the grounding point at the lower end of the stand does not move, and depresses the foot to fix it.
By operating the traveling operation lever 8 of
Drive the la 2 to advance the aircraft, and stand 1 on the left and right
5 stands up by pushing the ground, and the grounding stable holding member 14 is grounded to maintain a standing stable posture,
As a result, the vehicle body is lifted and the traveling crawler 1 floats.

[0006]

Therefore, according to the present invention, of the left and right stands, in particular, the phase of the left side (opposite to the driving control section side) is advanced, so that the left and right stand at the time of full up. Since the stand comes into uniform contact with the ground, stability is good even on slippery ground, and it is possible to surely perform a full up.

[0007]

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 engine 6 is mounted on one side of the reaping section 3, a driver's seat 7 is provided above the engine 6, and an operating lever (hydraulic pressure) for controlling the forward and backward traveling of the aircraft is provided near the driver's seat. A control box 9 having an HST lever 8) of a continuously variable transmission and the like is installed. A grain bagging processing device including a hopper 10 and the like is arranged on the lateral side of the threshing unit 5.

The traveling crawler 1 includes a driving wheel 1a and a driven wheel 1
b, a wheel 1c and a cro-labeled 1d wound around these. A support shaft 11 is installed laterally on the front portion of the vehicle body 2 and a bearing is configured to be rotatable around this shaft center. A grounding stable holding member 14 is provided at the tip of the stand arm 12 so as to be L-shaped when viewed from the side, and the lifting stand 1 is provided.
5, the stand 15 is provided so as to be swingable in the forward and backward directions of the machine body by fitting and fixing the base of the arm 12 to the support shaft 11. The spindle 11 is
The intermediate part is divided into two parts, and the joint part 13 is provided by fitting so that they can be joined and separated so as to rotate in conjunction with each other, and the left and right stand arms 12, 12 are configured to integrally swing. There is. The ground-contacting / stabilizing member 14 has a wide structure so that when the vehicle body is lifted up, it can be fixed by stepping on the ground by placing a foot on it.

The raising / lowering stand 15 is set at a position outside the body where the operator can fix and operate the grounding portion of the stand so as not to move, and near the driving control portion 9 where the traveling operation of the body can be directly performed. . In the left and right stands 15, the standing angle A to the ground of the stand 15L located on the side opposite to the driving control section 9 side is smaller than the standing angle B to the ground of the stand 15R located on the driving control section 9 side (A < The configuration is such that a phase difference is appropriately provided so as to be B).

The lifting stand 15 is arranged on both the left and right outer sides of the machine body, and a hydraulic jack 16 capable of moving up and down is installed at the center of the vehicle body in the lateral width direction. Therefore, the entire mobile work vehicle can be lifted by the three-point support of the left and right stands 15 and the rear jack 16 at the front of the vehicle body.

Reference numeral 17 denotes a fulcrum shaft of the hydraulic jack 16. The fulcrum shaft 17 is extended and its end face is set on the traveling frame 18. The hydraulic jack 16 is moved from the retracted state shown in FIG.
When the jack set lever 19 is rotated vertically to the ground, the jack set lever 19 faces away from the crawler 1. 20 is a hydraulic lever. 9 and 10
The structure of the stand 15 shown in FIG. 2 will be described. Particularly, as shown in FIG. 10, the stand is formed in a reverse L-shape when viewed from the rear, which is largely curved outward from the vicinity of the support shaft 11, so that the distance between the stand and the crawler 1 is increased. It is widely used. Therefore, it is possible to replace the black label without pulling the stand out.

In the embodiment shown in FIGS. 11 to 12, the grounding stability holding member 14 of the stand 15 has a T-shape in plan view composed of a vertical member 14a and a horizontal member 14b to stabilize the grounding at full up. Is configured as follows. 13 to 14
In the embodiment shown in (1), a hole 21 is provided on the side surface of the stand 15 at the time of storage, and the rear end of the narrow guide 22 is inserted into this hole 21 portion to prevent the entry of grain culms. The narrow guide 22 is pivotally mounted at its tip end around a fulcrum pin 23 so as to be swingable, and constantly urges the winding spring 24 toward the fuselage side. The fulcrum pin 23 is set on the back of the grass body 25.

[Brief description of drawings]

FIG. 1 is a left side view of a combine.

FIG. 2 is a left side view of the combine.

FIG. 3 is a perspective view of the same main part.

FIG. 4 is a rear view of the main part.

FIG. 5 is a right side view of the combine.

FIG. 6 is a right side view of the combine.

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

FIG. 8 is a rear view of the main part.

FIG. 9 is a side view of the main part of the combine.

FIG. 10 is a rear view of the main part.

FIG. 11 is a perspective view of a stand.

FIG. 12 is a rear view of the main part of the combine.

FIG. 13 is a side view of the combine.

FIG. 14 is a front view of the main part.

[Explanation of symbols]

 1 Running Crawler 2 Car Body 3 Mowing Section 4 Horizontal Axis 5 Threshing Section 6 Engine 7 Driver's Seat 8 Operation Lever 9 Control Box 10 Hopper 11 Spindle 12 Stand Arm 13 Joint Section 14 Grounding Stabilization Member 15 For Lifting Stand 16 hydraulic jack

Claims (1)

[Claims] 1. An elevating stand 15 for standing up between a vehicle body 2 equipped with a traveling crawler 1 and the ground due to a traveling operation of the vehicle body and lifting the vehicle body up a certain distance above the ground surface on both left and right sides of the vehicle body. In addition to being arranged on the outer side, the left and right lifting stands 15 have a standing angle to the ground opposite to the side of the driving control section 9 side smaller than that of the stand located on the driving control section 9 side. A mobile work vehicle characterized by being provided with a phase difference so that