JPH0543601Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a mounting device for easily attaching and detaching a ridge former, etc. to the rear of a rotary tiller.

(b) Prior Art Conventionally, techniques such as Japanese Utility Model Application Publication No. 178802/1983 have been known as a structure in which a ridge former is attached to the rear of a rotary tiller.

These technologies have a configuration in which a depth frame is fitted into the depth beam of a rotary tillage device, and fitting parts protruding from both ends of the horizontal rod of the ridge former are inserted into the tail wheel insertion pipe of the depth frame, and fixed with bolts, etc. It was hot.

(c) Problems to be solved by the invention With such a configuration, it becomes a troublesome work to attach the insertion part of the ridge former to the insertion pipe of the depth frame, and it must be fixed with bolts, etc. Because of this, it took a very long time to put it on.

(d) Means for solving the problem In view of the above points, the present invention is constructed as follows.

A bracket 20 is fitted into the depth beam 9 of the rotary tillage device (R), and a rotation fulcrum for the lock lever 25 is provided on the lower surface of the center of the horizontal frame 20b of the bracket 20, and guide pipes 23, 23 are fixed on the lower surface of both sides of the horizontal frame 20b. Insert the stopper pins 18L and 18R, and connect the lock lever 25 and the stopper pins 18L and 18R to the link 2.
It is pivotally connected at 6L and 26R.

(E) Embodiment The purpose of the present invention is as described above, and the structure of the present invention will be explained based on the structure of the embodiment shown in the attached drawings.

FIG. 1 is a side view of a rotary tiller equipped with a ridge former using the mounting device of the present invention. Figure 2 is also a plan view. FIG. 3 is a rear perspective view showing the working state.
FIG. 4 is a rear perspective view with the ridge former removed. FIG. 5 is a side view showing the mounting of the mounting device. FIG. 6 is also a perspective view. FIG. 7 is a partially sectional view of a plan view of the locking device.

In Figures 1, 2, and 3, a rotary tiller (R) is attached to the rear of the tractor T via a work equipment attachment device, and power is transmitted to the PTO shaft protruding from the rear of the transmission case of the tractor T. The joint 1 is connected, and the power is transmitted through the universal joint 1 to the input shaft of the gearbox 2 of the rotary tiller (R). The tilling claws 5 fixedly attached to the tilling claw shaft are rotated from the gearbox 2 via the main beam 3 and the chain case 4 to perform tilling.

Flanges 6, 6 are fixedly installed on the main beam 3 on both sides of the gearbox 2, side supports 8, 8 are connected between the front end and the main support 7, and support arms 10, 10 are fixedly attached to one rear side of the flanges 6, 6. A depth beam 9 is pivotally supported on the other side. An adjustment shaft 11 connected to a rear cover 13 is pivotally supported at the rear end of the support arm 10, and a spring 12 for restoring the rotation of the rear cover 13 is fitted onto the adjustment shaft 11.

Further, a sensor support member 14 is fixed to the end of the support arm 10, and a sensor 15 is provided to detect rotation between the rotary tiller (R) and the depth beam 9, and provide feedback via a wire 16. . Also, the frame 9 in the center of the depth beam 9
An adjustment handle 17 is interposed at the rear end of the main support 7 and the plowing depth, and the height of the work implement attached to the depth beam 9 can be adjusted. A spring 19 is fitted into the lower end of the adjustment handle 17 and receives rotational pressure from the depth beam 9.

The mounting device of the present invention is attached to the rear end of the depth beam 9. That is, Fig. 4, Fig. 5, Fig. 6
As shown in the figure, the pipe portion 20a of the π-shaped bracket 20 is fitted into the depth beam 9, and the pin 21 is inserted into the depth beam 9.
The front and back lengths can be changed by changing the insertion position of the pin 21. A guide plate 22 is fixed to the rear side surface of the bracket 20, the rear end of the guide plate 22 is bent into a dogleg shape, the upper side is cut diagonally so that the rear side is lower, and the center part of the upper side is bent. A notch 22a is bored in the. Further, a stopper 22b is attached to the side surface, a guide pipe 23 is fixedly attached to the inside of the lower end, and a through hole is bored.

The guide pipe 23 is for inserting a lock-mounted stopper pin 18 for fixing a mounting portion of a ridge forming apparatus A to be described later. That is, as shown in FIG. 7, in the locking device, a pivot plate 24 is fixedly mounted on the central lower surface of the horizontal frame 20b of the bracket 20, and the center portion of a lock lever 25 is pivotally supported on the pivot plate 24. Then, there are links 2 on both sides with the pivot portion of the lock lever 25 as the center of symmetry.
6L and 26R are pivotally supported, and a grip 27 is fixed to the front end of the lock lever 25. The link 26
A spring 31 is interposed between L and the lock lever 25, and the spring force causes the stopper pin 1 to
8 in the protruding direction. The link 26L,
Stopper pins 18L and 18R are pivotally supported at the other end of 26R, and can be slid within the guide pipe 23 by rotation of the lock lever 25. Also,
A pivot plate 28 is fixed to the lower surface of one side of the horizontal frame 20b, and a locking lever 29 is pivotably supported. The tip of the locking lever 29 comes into contact with the grip 27, and a notch 29a is formed in the center of the horizontal frame 2.
A spring 32 is interposed between the ring 0b and the locking lever 29.

The ridge former A is attached to the frame 3 at the center of the horizontal rod 35.
4 protrudes forward, and mounting metal fittings 36 are fixed on the horizontal rod 35 at the rear from both sides thereof. A cover 37 is fixed to the lower surface of the mounting bracket 36, and a mounting rod 39 is fitted into the pipe portion. A leveling plate 40 is attached to the rear end of the mounting rod 39. Also, vertical rods 41 are vertically installed at both ends of the horizontal rod 35, and a tail wheel 42 and side molded plates 43 are fixedly installed.

As shown in FIGS. 5 and 6, a locking plate 33 is erected at the front of the mounting frame 34, with a locking shaft 30 horizontally installed in the upper part and an engaging hole 33a in the lower part.
is drilled. Numeral 34a is a bolt hole for adjusting the front and back position when fixing the mounting frame 34 to the horizontal rod 35.

(f) Effects of the invention In this configuration, the invention exerts the following effects.

That is, in order to attach the ridge shaper A to the depth beam 9 of the rotary tiller (R), the steps shown in FIGS.
As shown in the figure, move the mounting frame 34 to the bracket 20 from the rear, or stand the ridge former A upright and move the tractor backwards, then attach the locking plate 33,
Guide the guide plate 22 between 33 and
The oblique upper side of the guide plate 22 guides the locking shaft 30 and moves it until it abuts against the stopper 22b. Then, the locking shaft 30 is fitted into the notch 22a, and the locking lever 29 of the locking device is
When the lock lever 25 is released and the lock lever 25 is rotated, the links 26L and 26R are moved to the stopper pins 18L and 18.
By pressing R, the mounting frame 34 is inserted into the engagement hole 33a of the locking plate 33, and the mounting frame 34 is fixed to the bracket 20.

Conversely, when removing the ridge former A, rotate the lock lever 25 in the opposite direction to release the stopper pin 1.
8L and 18R are removed from the engagement hole 33a, and the grip 27 is locked in the notch 29a of the locking lever 29. Then, by lifting the locking shaft 30 (or lowering the bracket 20), it can be removed from the notch 22a and separated.

(g) Effects of the invention With the above configuration, the invention provides the following effects.

In other words, the configuration is such that the locking shaft of the mounting frame is engaged with the upper side of the bracket attached to the depth beam of the rotary tillage device, and the lock lever is rotated to engage the stopper pin, so that the ridge shaper etc. can be easily installed in a short time. Now it can be installed.

[Brief explanation of drawings]

FIG. 1 is a side view of a rotary tiller equipped with a ridge former using the attachment/detachment device of the present invention. Figure 2 is also a plan view. FIG. 3 is a rear perspective view showing the working state.
FIG. 4 is a rear perspective view with the ridge former removed. FIG. 5 is a side view showing how the attachment/detachment device is attached. FIG. 6 is also a perspective view. FIG. 7 is a partially sectional view of a plan view of the locking device. R...Rotary tillage device, 9...Depth beam, 18L, 18R...Stopper pin, 20...
...Bracket, 20b...Horizontal frame, 23...
Guide pipe, 25... Lock lever, 26L,
26R...link.

Claims (1)

[Scope of utility model registration request] A bracket 20 is fitted into the depth beam 9 of the rotary tillage device (R), and a pivot point for the lock lever 25 is provided on the lower surface of the center of the horizontal frame 20b of the bracket 20, and guide pipes 23, 23 are fixed on the lower surface of both sides of the horizontal frame 20b. Insert the provided stopper pins 18L and 18R, and connect the lock lever 25 and the stopper pins 18L and 18R to the link 2.
A mounting device for a ridge former, etc., characterized by being pivotally connected at 6L and 26R.