JP2611782B2 - Soil transport equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a soil transport device.

[Conventional technology]

Hitherto, Japanese Patent Publication No. Sho 59-3607, Japanese Utility Model Publication No. Sho 61-45245, Japanese Utility Model Publication No. Sho 56-55327, etc. have been known as this type of soil transport device.

In this conventional structure, a mounting frame is connected to a rear portion of the tractor in the signal direction by a connecting mechanism, a soil carrier is provided on the mounting frame so as to be tiltable rearward by a fulcrum shaft, and a plow is provided on the mounting frame in a forward-downward shape. It is composed.

[Problems to be solved by the invention]

However, in the case of the above-mentioned conventional structure, if the plow is disposed at the lower position as much as possible in order to shorten the downwardly protruding portion on the front side of the plow, the plow is moved from the plowing position to the plowing position during non-plowing work. When the plow is lifted up, the components of the plow will protrude from the outer bottom surface of the bottom plate of the soil carrier, and due to this restriction, it will not be possible to travel with the soil carrier in contact with the ground when the plowing operation is completed. There is an inconvenience that earth loading work, snow removal work, and the like may not be performed by the blade portion at the rear edge of the table.

[Means for solving the problem]

The purpose of the present invention is to eliminate these inconveniences, and the gist of the invention is to provide a mounting frame at the rear of the tractor in the traveling direction, and to provide a container-shaped soil carrier on the mounting frame so as to be tiltable rearward. When the plow is provided on the mounting frame in a forward descending manner, the tip of the plow is moved from the plowing work position where the plunger protrudes downward in a forward descending manner from the outer bottom surface of the soil carrier. The plunger is located above the outer bottom surface of the soil carrier via the non-plowing work position, which is located above the outer bottom surface of the soil carrier and is rotatable back to the plowing position by its own weight and is rotatable. Wherein a lifting mechanism is provided so as to be rotatable to a retractable position in which the plow cannot return and can be lifted from the plowing operation position to the non-plowing operation position by an operation lever. In the device.

[Action]

When the tractor is moved forward while holding the plow at the plowing work position projecting forward and downward from the outer bottom surface of the soil carrier, the plow cuts the field soil, and the shaved soil is guided by the plow. , Introduced into the soil carrier.

At the time of non-plowing work, the lifting lever is operated by the operation lever to move the plow from the plowing position to the plowing position where it is positioned above the outer bottom surface of the soil carrier and returned to the plowing position by its own weight and can rotate. It can be raised and arbitrarily held in a plowing work position or a non-plowing work position.

When the plowing operation is completed, the plowing body is positioned above the outer bottom surface of the soil carrier from the non-plowing work position, and returns to the non-plowing work position by its own weight and turns to the retreat position where it cannot rotate. it can.

〔Example〕

1 to 8 show an embodiment of the present invention. Reference numeral 1 denotes a tractor, and a mounting frame 3 is connected to a rear portion of the tractor 1 by a connecting mechanism 2.

The connecting mechanism 2 connects a lower link 4 projecting from the lower left and right sides of the tractor, a swing arm 5 projecting from the upper left and right sides of the tractor, and a medium link between the swing arm 5 and the lower link 4. It is composed of a lifting link 6 and an upper link 7 projecting above the tractor, and the distal end of the lower link 4 and the distal end of the upper link 4 are connected to the mounting frame 3 by connecting pins 8.
And a swing arm 5 that swings the mounting frame 3 by hydraulic pressure.
Up and down movement.

Also, the mounting frame 3 is formed in a side L shape and a rear square frame shape,
A mounting body 9 is pivotally mounted between the left and right vertical rods 3a of the mounting frame 3 by a pin 10 so as to be swingable, and a plow 11 is mounted on the mounting 9 in a forward-downward manner. A stopper body 13 is provided on the lower surface of the horizontal rod 3b of the mounting frame 3 so as to hold the plow body 11 at a plowing work position a projecting downward from the outer bottom surface of the soil carrier 14 in a forwardly downward manner.

14 is a soil carrier, and the soil carrier 14 is a rectangular bottom plate.
The left and right side plates 16, the front plate 17, and the rear plate 18 are erected on the four sides of 15 and the soil introduction port 19 is located at the position of the front plate 17 with respect to the plow body 11.
Is formed.

L-shaped reinforcing rods 20 are attached to the front plate 17 and the bottom plate 15 of the earth carrier 14.
And the other reinforcing rods 22 are fixed only to the bottom plate 15 with the reinforcing rods 21 spaced apart. The horizontal rods 3b of the mounting frame 3 are located between the reinforcing rods 21 and 22, the horizontal rods 3c and the reinforcing rods 20 are fixed.・ Support shaft 23 at 21
And the soil carrier 14 is attached so as to be tiltable backward.

Reference numeral 24 denotes a guide member, which is disposed and fixed between the left and right vertical rods 3a below the soil introduction port portion 19, and forms a guide surface 24a that matches the inclination angle of the plow body 11.

Reference numeral 25 denotes a locking mechanism. The locking mechanism 25 pivotally connects a hook-shaped locking arm 26 to the horizontal rod 3c on the upper part of the mounting frame 3, and forms a locking part 27 on the upper part of the soil carrier 14. The engaging arm 26 and the engaging portion 27 are engaged with each other, and the engaged state is maintained by the spring member 28.

Reference numeral 29 denotes a lifting mechanism, in which an arm 31 is pivotally connected to the horizontal rod 3c by a pivot shaft 30, an operation lever 32 is pivotally connected to the arm 31 by a pin 33, and the tip of the plow is used to carry soil. A locking work plate 34 which is located above the outer bottom surface of the base 14 and has two grooves 34a which can be returned to the plowing work position a by its own weight and rotatable by its own weight or can be held at the above-mentioned plowing work position a.
The arm 35 having the engaging surface 35a is loosely inserted into the pin 10 and the fixing member 36 having the locking surface 36a is fixed to the pin 10, and a wire is provided between the arm 35 and the arm 31. When the operating lever 32 is depressed, the connecting rod 37, the arm 35, the abutting action between the engaging surface 35a and the engaging surface 36 as shown in FIGS. The plow body 11 is raised from the plowing operation position a to the non-plowing operation position b via
When the operating lever 32 is pulled up, the plunger is under its own weight.
Numeral 11 denotes a plowing work position a which is held down
When the plunger 11 is positioned at the non-plowing work position b and only the plunger 11 is lifted up by hand and turned, as shown in FIG.
The plow body 11 comes into contact with the guide member 24, and the plow body 11 is completely located above the outer bottom surface of the earth carrier 14 and returns to the non-plowing work position b by its own weight and cannot be turned. 2 and 3, ie, as shown in FIGS. 2 and 3, a plowing work position a in a forward descending state during a plowing operation, a plowing work position b in a horizontal state, and a retreating position c in an inverted state when the work is completed. May be held in position.

 Reference numeral 38 denotes a blade used for loading the soil and removing snow.

Since this embodiment has the above-described configuration, when the tractor 1 is moved forward while holding the plow 11 at the forward use position a in a high place in the field scene, the field soil is scraped off by the plow 11 and cut off. The soil is introduced by the plow 11 and is guided into the soil carrier 14.
Working position b due to the action of the lifting mechanism 29
This is repeated while traveling, and when a predetermined amount of soil is loaded on the soil carrier 14, a locking mechanism is set at a low place in the field.
By releasing 25, the soil carrier 14 tilts backward about the fulcrum shaft 23, and the soil of the soil carrier 14 is discharged.

When the plowing operation as the leveling operation in the field scene is completed, the plowing body 11 can be manually turned from the non-plowing operation position b to the retreat position c as shown in FIG.

For this reason, the plow body 11 can be held at the three positions of the plow work position a, the non-plow work position b, and the retreat position c, so that the plow work can be performed smoothly and the plow body 11 can be evacuated without fail. The plow does not become an obstacle in other operations such as transporting, snow-removing, soil loading, etc., so that the plow 11 can be arranged as much as possible below the mounting frame 3 and further plowing can be performed. Can be performed favorably.

〔The invention's effect〕

As described above, the present invention provides a plowing operation position in which a plow is protruded downward from an outer bottom surface of a soil carrier in a forward-downward direction, the tip of the plow is positioned above the outer bottom surface of a soil carrier, and the plowing operation is performed. The plow is located above the outer bottom surface of the soil carrier and is rotatable by its own weight. Plowing work can be performed smoothly and the plow can be evacuated without fail, and other works at the time of completion of the plowing work, such as transport work, snow removal work, soil loading work, etc., do not disturb the plow body. Therefore, the plow can be arranged as much as possible below the mounting frame, so that the plowing operation can be performed more favorably.

 As described above, the intended purpose can be sufficiently achieved.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show one embodiment of the present invention. FIG. 1 is an overall side view, FIG. 2 is a partial sectional view thereof, FIG. 3 is a partial sectional view thereof, FIG. The figure is a partial perspective view thereof, and FIGS. 6, 7, and 8 are partial sectional views of the operation. a ... plowing work position, b ... non-plowing work position, c ... retreat position, 1 ... tractor, 3 ... mounting frame, 11 ... plow body, 14 ... soil carrier, 29 ... lifting mechanism , 32 ... Operation lever.

Claims (1)

(57) [Claims] 1. A mounting frame is provided at a rear portion in a traveling direction of a tractor,
A container-shaped soil carrier is provided on the mounting frame so as to be tiltable rearward, and a plow is provided on the mounting frame in a forward-downward shape, wherein the plow is forward-downward from the outer bottom surface of the soil carrier. From the plowing work position projecting downward, the tip of the plow is positioned above the outer bottom surface of the soil carrier, and returns to the plowing position by its own weight. It is located above the outer bottom surface of the carriage and is returned to the non-plowable work position by its own weight so as to be rotatable to a retreat position where it cannot rotate, and the plow is moved from the plow work position to the unplowed work by an operation lever. A soil transport device comprising a lifting mechanism capable of lifting to a position.