JP3102342U - Farm work vehicle - Google Patents

Abstract

When reversing a cultivator from a lower working position to an upper storing position, the operating force is reduced by an elastic force such as a spring force to enable easy and reliable storage of the cultivator and work from the storing position. Even when returning to a position, it is possible to prevent a sharp drop and to return to a good working state, thereby improving workability.
In a soil cultivation device for an agricultural work vehicle equipped with a soil cultivator at the rear of a fuselage, an elastic member that allows a work mounting member (20) of the fuselage to reversibly support the cultivator and urges the soil cultivator with an elastic force in a reverse direction. 28 are provided.
[Selection diagram] FIG.

Description

  The present invention relates to a cultivation device for an agricultural work vehicle in which an cultivator is mounted on an agricultural work vehicle such as a tractor.

  2. Description of the Related Art Conventionally, there is a type in which a mounting column of a cultivator is vertically adjustable to a bracket which is provided to extend behind a vehicle body of a tractor. (For example, see Patent Document 1)

Japanese Utility Model Publication No. 2001-269001

  However, in the above-mentioned soil cultivator, when it is not in use, it is troublesome to remove it each time.

  Therefore, the base plate is attached to the machine side, and the rotatable metal fittings provided on the cultivator are fixed to the base plate so as to be switchable between the working position and the storage position by the pin, and the cultivator is in the working state or the storing state. Although there is a technology that makes it easy to change the cultivator, when switching from a lower working position to an upper storage position with a heavy load, it is necessary to support the dead weight of the cultivator and switch from the upper position to the lower position. When the fixing pin is pulled out at the position to switch to the work position, problems such as dropping of the cultivator by its own weight occur.

  Therefore, the present invention provides a cultivation device for an agricultural work vehicle in which a cultivator is mounted on the rear of the fuselage. Is provided.

  In addition, a torsion coil spring for reversing the cultivator is interposed between a mounting bracket fixed to the work implement mounting member and a support member of the cultivator.

  Further, a hook member for automatically fixing the cultivator to the inverted position when the cultivator is inverted is provided.

  Thus, the present invention provides a soil cultivation device for an agricultural work vehicle equipped with a soil cultivator at the rear of the fuselage. When the cultivator is inverted from the lower working position to the upper storage position by providing the elastic member, the operating force is reduced by an elastic force such as a spring force to enable easy and reliable storage of the cultivator. Also, even when returning from the storage position to the working position, it is possible to prevent a sharp drop and return to a good working state.

  In addition, a torsion coil spring for reversing the cultivator is interposed between the mounting bracket to be fixed to the work machine mounting member and the support member of the cultivator, so that it is simple to add a torsion coil spring to the conventional mounting structure. Thus, it is possible to easily switch the working position or the storage position of the cultivator with an inexpensive configuration.

  In addition, by providing a hook member that automatically fixes the cultivator to the reversing position when the cultivator is reversed, insert a pin each time the cultivator is switched from the working position to the storage position to position the cultivator. The position can be automatically fixed without the trouble of fixing, and the efficiency of the work of storing the cultivator can be improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view of the whole, and FIG. 2 is a side view of a tilling rotary working machine. In the figure, reference numeral 1 denotes a tractor which is an agricultural work vehicle, and left and right front wheels 4 on both sides of a hood 3 in which an engine 2 is installed. A round steering handle 5 is provided at the rear of the hood 3, a driver's seat 6 is installed behind the handle 5, and left and right rear wheels 7 are installed on both sides of the driver's seat 6. The driver sits on the driver's seat 6 and travels, and at the rear of the tractor body, mounts a cultivating rotary work machine 10 having a cultivator 9 via a three-point link mechanism 8 so as to be able to move up and down to perform cultivation and cultivation work. It is configured as follows.

  As shown in FIG. 2, the rotary working machine 10 has a rotary claw 11 provided on a chain case 12, covers the upper side of the rotary claw 11 with a rotary cover 13, and sequentially connects front and rear rear covers 14 and 15 to a rear portion of the rotary cover 13. Tilling work is performed by covering both sides of the rotary claw with the side cover 16.

  Further, a depth frame 18 is connected to the main frame 17 of the working machine 10, a height of a rear side of the depth frame 18 is adjusted by a depth handle 19, and a depth beam 20 at a rear end of the depth frame 18 is connected to a depth beam 20 via a hitch bracket 21. The cultivator 9 is mounted so that it can be inverted.

  As shown in FIGS. 3 to 5, the hitch bracket 21 is detachably fixed to the center of the width of the depth beam 20 via a detachable hitch pin 22, and is attached to the hitch bracket 21 via a support shaft 23 and a lock pin 24. The cultivation frame 25 is rotatably mounted, and the cultivation plate 26 for shaping the outer embankment is fixed to the lower end of the cultivation support 26a. With the rear rear cover 15, the outer embankment shaping operation for shaping the half of one half of the two adjacent flat ridges and the groove is performed, and the cultivation frame 25 is rotated upward around the support shaft 23 by the engagement and disengagement of the lock pin 24, and FIG. The cultivation frame 25 is inverted to the solid line position, the cultivator 9 is lifted, and the central notch hole for the cultivator in the rear cover 15 is covered with a central notch plate so as to be flush. Perform, such as tillage (Dai掻) work.

  By the way, between the hitch portion 27 of the hitch bracket 21 and the cultivation frame 25, there is provided an elastic member 28 for urging the cultivator 9 with an elastic force in the reverse direction, and a torsion coil spring 29 is used as the elastic member 28. The outer periphery of the support shaft 23 is wound, one end is fixed to the hitch portion 27 and the other end is locked to the soil cultivation frame 25, and the lock pin 24 is used to form a pin hole 28 a for the work position of the hitch bracket 21 and a single piece of the soil cultivation frame 25. When the lock with the pin hole 29 is released, the spring force of the spring 29 is urged to the cultivation frame 25 to reduce the operation force when the cultivator 9 is moved from the lower working position to the upper storage position. are doing.

  Further, from the storage state of the cultivator 9 in which the lock pin 24 is engaged with the storage position pin hole 28b of the hitch bracket 21 and the pin hole 29 of the cultivation frame 25, the lock pin 24 is pulled out and the cultivator 9 is lowered to the working position. In this case, the spring force of the spring 29 acts as a resistance to prevent the cultivator 9 from dropping (falling) sharply.

  As is apparent from the above description, in the cultivation device of the agricultural work vehicle equipped with the cultivator 9 at the rear of the fuselage, the cultivator 9 is supported on the depth beam 20, which is a work attachment member of the fuselage, so that the cultivator 9 can be inverted. When the cultivator 9 is reversed from the lower working position to the upper storage position, the operating force is reduced by an elastic force such as a spring force. In addition to enabling easy and reliable storage of the cultivator 9, it is also possible to prevent a sharp drop when returning from the storage position to the working position and to enable a return to a good working state. Performance can be improved.

  Further, a torsion coil spring 29 for inverting the cultivator is interposed between a hitch bracket 21 which is a mounting bracket for fixing to the depth beam 20 and a cultivation frame 25 which is a support member of the cultivator 9. It is possible to easily switch the working position or the storage position of the cultivator 9 with a simple and inexpensive configuration simply by adding a torsion coil spring 29 to the above.

  Further, in the above-described embodiment, the configuration in which the cultivator 9 is fixed at the storage position by the lock pin 24 is shown. However, as shown in FIG. When the cultivator 9 is raised from the working position to the storage position, the pin member 31 is automatically attached to the cultivation frame 25 by providing an engagement pin member 31 that engages with the hook member 30 when the cultivator 9 is raised from the working position to the storage position. The position may be maintained at the storage position of the cultivator 9 by engaging.

  As is clear from the above, the hook member 30 for automatically fixing the cultivator 9 to the inverted position when the cultivator 9 is inverted is provided, and when the cultivator 9 is switched from the working position to the storage position, Each time, the pin 24 is inserted, and the position of the cultivator 9 is automatically fixed without the trouble of fixing the position of the cultivator 9, so that the efficiency of the storing operation of the cultivator 9 can be improved.

FIG. The side view of a tilling rotary working machine. Side explanatory drawing of a cultivation soil frame part. Bottom explanatory view of a cultivation frame part. Explanatory drawing of switching of the work and storage position of the cultivation frame part. FIG.

Explanation of reference numerals

9 burrower 20 depth beam (work equipment mounting member)
25 Cultivation frame 28 Elastic member 29 Torsion coil spring 30 Hook member

Claims (3)

   In the cultivation device of the agricultural work vehicle equipped with the cultivator on the rear of the fuselage, the work mounting member of the fuselage supports the cultivator in a reversible manner, and the cultivator is provided with an elastic member for biasing the reversing direction elastic force. Characteristic soil cultivation equipment for agricultural work vehicles.   The cultivation device for an agricultural work vehicle according to claim 1, wherein a torsion coil spring for inverting the cultivator is interposed between a mounting bracket fixed to the work implement mounting member and a support member of the cultivator.   3. A cultivation device for an agricultural work vehicle according to claim 1, further comprising a hook member for automatically fixing the cultivator to the inverted position when the cultivator is inverted.

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