JPS5927685Y2 - Tillage equipment soil leveling device - Google Patents

Description

[Detailed description of the invention] This invention has an auxiliary soil leveling tool protruding from the side of the lower end of the ground leveling plate installed at the rear of the tillage device, and the soil leveling tool works in cooperation with the ground leveling plate and the auxiliary ground leveling tool to cultivate tillage. The present invention relates to a tillage device for leveling soil.

The auxiliary soil leveling tool usually has a leveling plate that is set to be approximately the same width as the tilling device, so it can be used to level the soil that has been scattered outward from the tilling device, or to use the leveling plate to level the soil that has been scattered outside laterally from the tilling device. It is provided for purposes such as leveling the soil that is discharged to the side and filling the groove formed by the transmission case of the tilling device (side drive type).

In addition, if the auxiliary ground leveling tool protrudes laterally to a large extent, it will easily come into contact with other objects, so when the aircraft is running on the road, it will not get in the way of overlapping along the leveling plate. It is desirable to be able to store it in a state.

However, in order to switch the auxiliary ground leveling tool between the protruding working position and the non-working position, conventionally, in order to attach the auxiliary ground leveling tool to the ground leveling plate, it was necessary to fasten it through bolts at two or more locations. Because of this, it was necessary to change the posture by attaching and detaching bolts, making the attaching and detaching operations complicated.

Therefore, as a solution to the above-mentioned drawbacks,
There is a technique described in Japanese Patent No. 4810.

This structure has an auxiliary leveling tool attached to the side of the lower end of the leveling plate, which is rotatable around an axis along the longitudinal direction of the aircraft, and a spring is stretched across the leveling plate and the auxiliary leveling tool. , the auxiliary ground leveling tool is switched between a protruding working position and a non-working position with an imaginary line connecting a rotation fulcrum connecting the auxiliary ground leveling tool and the ground leveling plate and a spring pivot point on the ground leveling plate side as a boundary. .

However, with such a structure, it is difficult to maintain the protruding posture of the auxiliary leveling tool unless the spring force is increased, and
If the spring force is increased, it becomes difficult to switch the non-working position of the auxiliary ground leveling tool.

Furthermore, this structure does not have any auxiliary leveling tools that are easily deformed by stones, etc. during ground leveling work, and no structure to reinforce the lower end of the leveling plate to ensure smooth land leveling work. there were.

In view of the above points, the present invention makes it easy to change the posture of the auxiliary ground leveling tool, while ensuring that the posture is maintained in the protrusion action posture.
Furthermore, the purpose is to strengthen the lower end of the auxiliary ground leveling tool and the ground leveling plate to perform good leveling work, and to simplify the structure by using the reinforcement structure for the protruding action posture maintenance structure of the auxiliary ground leveling tool. shall be.

The characteristic structure of the soil leveling device of the tilling device of the present invention is that the lower end of the ground leveling plate installed at the rear of the tilling device has an operating posture that protrudes laterally outward from the lateral outer edge of the ground leveling plate, and An auxiliary ground leveling tool is provided which is pivotably pivoted to a non-working position of retiring to the width, and a lower edge portion of the ground leveling plate;
A cylindrical portion having a curved peripheral surface on the lower side is formed at each of the lower end edge portions of the auxiliary ground leveling tool in the protruding action position, and a slide rod that is slidable relative to one of the cylindrical portions is formed. The projecting end of the slide rod from the cylindrical part is configured to be able to be inserted into and removed from the other cylindrical part when the auxiliary ground leveling tool is in the protrusion action position, so that the ground leveling plate and It is characterized by being configured such that its relative position with respect to the auxiliary ground leveling tool is fixed and can be freely released.

That is, the lower ends of the auxiliary ground leveling tool and the ground leveling plate are formed into a cylindrical part with a curved peripheral surface to reinforce the auxiliary ground leveling tool and the lower end of the ground leveling plate, and the auxiliary ground leveling tool and the lower end of the ground leveling plate are made to slide into one of the cylindrical parts that controls the reinforcing structure. By inserting the rod and inserting it into the other cylindrical part when the auxiliary ground leveling tool is in the protruding working position, it is possible to maintain the protruding working position of the auxiliary ground leveling tool. It has now been possible to easily construct a structure for reinforcing the lower end of the tool and maintaining the posture of the auxiliary ground leveling tool in its protruding posture relative to the ground leveling plate.

Further, since the structure is rigidly connected with the cylinder and the rod, the protruding posture of the auxiliary ground leveling tool can be maintained reliably, and since the connecting structure is connected by inserting and removing it, the posture of the auxiliary ground leveling tool can be easily changed.

Further, by configuring the lower ends of the auxiliary ground leveling tool and the ground leveling plate in a cylindrical shape, there is an advantage that the soil becomes more loose compared to the case where the lower ends of the auxiliary ground leveling tool and the ground leveling plate are left as edges.

EMBODIMENT OF THE INVENTION Hereinafter, an example of implementation of the present invention will be described based on the drawings.

The figure shows a medium-sized power tiller formed by connecting a rotary tiller 2 to the rear of a tractor 1.

The rotary tilling device 2 has a tilling shaft 6 having a plurality of tilling claws 5 erected on the outer periphery between a transmission case 3 located on the lateral side and a support frame 4 located on the other lateral side. supported,
It is configured as a so-called side drive type, and a leveling plate 7 is provided at the rear, and a pair of left and right auxiliary leveling plates 8, 8 protrude laterally outward from both lateral sides of the lower end of the leveling plate 7. installed in condition.

Next, a structure for attaching the auxiliary leveling plates 8, 8 to the leveling plate 7 will be explained.

The auxiliary leveling plates 8, 8 are installed in the same way, and the one located on the left side in the illustration below is shown in FIG. 3A.

Explain based on word of mouth.

That is, the vicinity of the upper end of the auxiliary ground leveling plate 8 is pivotally attached to the ground leveling plate 7 via bolts 13, so that the auxiliary ground leveling plate 8 can be placed in a working position protruding laterally outwardly and in a position where the ground leveling plate 7 The lower end of the auxiliary ground leveling plate 8 and the ground leveling plate 7 are connected to each other by locking them. A locking coupling mechanism 9 is provided which can be fixed.

This locking connection mechanism 9 includes a rod 9a that is inserted into a hole a of a cylindrical part 10 formed at the lower end of the auxiliary ground leveling plate 8 and supported so as to be slidable and retractable, and a rod 9a formed at the lower end of the ground leveling plate 7. and a cylindrical part 9b that supports the rod 9a in a freely insertable and removable manner.When the rod 9a is inserted into the hole b' of the cylindrical part 9b, the rod 9a becomes locked and connected.
It is configured to be in a released state as it is removed from the cylindrical portion 9b.

In addition, a handle 11 is connected to the rod 9a, and a guide groove 12 is formed in the cylindrical portion 10 to guide the handle 11, so that the rod 9a can easily slide in and out. It has become.

Further, the auxiliary ground leveling plate 8 is formed with a long hole 14 facing the lateral force as a connection hole for the bolt 13, and the auxiliary ground leveling plate 7
The pivot position between the ground leveling plate 8 and the auxiliary leveling plate 8 (in other words, the position of the auxiliary leveling plate 8 with respect to the leveling plate 7) is configured to be adjustable in the horizontal direction.

According to the above configuration, in order to position the auxiliary ground leveling plate 8 in the protruding working position, it is sufficient to set the locking connection mechanism 9 to the locked and connected state, and in order to switch between the working position and the non-working position,
It is sufficient to switch the locking connection mechanism 9 to the connected state or the released state and at the same time swing the auxiliary ground leveling plate 8 up and down approximately 90 degrees, making it easy to quickly and easily change the posture.

In the non-operating position, it is not necessary to position the auxiliary ground leveling plate 8 particularly firmly with respect to the ground leveling plate 7, so it is sufficient to tighten the bolts 13 with a slightly S force.

[Brief explanation of drawings]

The drawings show an example of the implementation of the soil leveling device of the tiller according to the present invention, and FIG. 1 is a side view of the riding type tiller, FIG. 2 is a back view of the rotary tiller, and FIG. 3 shows an auxiliary tiller. FIG. 6 is a perspective view showing a state of switching the posture of the ground leveling plate. 2... Cultivation device, 7... Ground leveling plate, 9a
・・・・・・Slide Rondo, 9b, 10・・・・・・
Cylindrical part, a, b...hole.

Claims (1)

[Scope of claim for utility model registration] ■ At the lower end of the ground leveling plate 7 installed at the rear of the tillage device 2,
An auxiliary ground leveling tool 8 is provided which is pivotably pivoted to switch between a working position in which it projects laterally outward beyond the lateral outer edge of the ground leveling board 7 and a non-working position in which it retires within the width of the ground leveling board 7. Cylindrical portions 9b and 10 each having a curved circumferential surface on the lower side are formed on the lower edge portion of the ground leveling plate 7 and the lower edge portion of the auxiliary ground leveling tool 8 in the protruding action position, respectively, and A slide rod 9a that is slidable relative to the cylindrical portion 10 is inserted into the cylindrical portion 10, and the protruding end of the slide rod 9a from the cylindrical portion 10 is inserted into the cylindrical portion 10 when the auxiliary ground leveling tool 8 is in the protruding action posture. A tillage device characterized in that it is configured to be inserted into and removed from the other cylindrical portion 9b, so that the relative postures of the ground leveling plate 7 and the auxiliary ground leveling tool 8 can be fixed, and the fixation can be released. Ground leveling equipment. ■ Scope of the utility model registration claim No.
A soil leveling device for the tillage device described in Section 1.