JP3217605B2 - Coring device drum - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coring device for making a hole in a lawn such as a golf course.

[0002]

2. Description of the Related Art Conventionally, a large number of holes are regularly formed in a lawn such as a golf course to penetrate through a hardened layer of a lower layer of the lawn so that drainage is improved and air is allowed to pass through, thereby preventing poor growth. Was so managed. A spike device or a coring device is used as a device for making a hole in the lawn.
This coring device projects a plurality of tines one by one on the outer peripheral surface of the drum, and a plurality of the coring drums are rotatably connected on one horizontal axis, and the coring drum is pulled and rotated. He had pierced the tine by cutting it into the ground.

[0003]

As described above, conventionally,
Since multiple rows of tines were projected one row at a time around the coring drum, the rows were cut into each other at the same time when coring.In a hard field, the pressure was distributed to multiple tines, and the coring did not penetrate. Therefore, there is a problem in that a heavy drop must be added or hydraulic pressure must be increased, resulting in high cost, and vibrations are likely to occur because the tines are intermittently grounded one by one. Was.

[0004]

The present invention uses the following means in order to solve the above problems. In a coring device in which tines are planted on the outer periphery of a coring drum, and the coring drum is rotated to pierce the tine into a field to make a hole, a plurality of tines are helically projected on the outer periphery of the drum , and one core is provided. Ring drum, in the direction of rotation
Multiple tines are located on one tangent line at right angles to the
So that the coring drum 15 does not rotate.
Then, the tines are sequentially pierced one by one.
It is configured to go .

[0005]

The following effects are obtained by using such means. Since the tines are arranged in a spiral shape, the tines are grounded one by one, and the pressing force acts on the tines one by one, so that the pressing force can be reduced, which is economical. Since the tines are sequentially grounded one by one by the spiral arrangement of the tines, generation of vibration can be suppressed.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. 1 is a side view of the coring device connected to the rear of the tractor, FIG. 2 is a front view of the coring device,
FIG. 3 is a perspective view of the drum of the coring device of the present invention.

In FIG. 1 and FIG. 2, a coring device is mounted on a three-point link type working machine mounting device A mounted on a rear portion of a tractor T, and the coring device is a main frame 1 of a portal type. Brackets 10, 10 are provided at lower portions on both sides. A pivot pin 3.3 for mounting the lower link 2 is protruded from the bracket 10. Is provided with a pivot portion 1b for pivotally supporting the top link 4. At the front center of the upper part of the main frame 1, locking portions 1c are provided, and a tension chain 5 is provided between the locking portions 1c and the tractor T.
5, the main frame 1 is restricted from rising.

On both sides of the upper portion of the main frame 1, pivotal stays 6.6 are erected. The pivotal stays 6.6 are erected on the center upper portion of the gate-shaped subframe 7.7. The supporting stays 7a, 7a are pivotally supported by the pins 9.9,
A sub-frame 7.7 is rotatably supported around a pin 9.9, and a support stay 7 is provided at the lower center of the sub-frame 7.
b is suspended from the support stay 7b and the bracket 1
The sub-frame 7 is rotatable by extending and contracting the dump cylinder 11.

A support plate 12 protrudes from a lower portion on both sides of the sub-frame 7 to a front lower portion, and a front end of a swing frame 13 is rotatably supported at a tip of the support plate 12. A swing cylinder 14 is interposed as an actuator between the middle part of the swing frame 13 and the middle part of the swing frame 13, and the swing frame 13 can be vertically rotated by extending and contracting the swing cylinder 14. Although the swing cylinder 14 as an actuator is constituted by a hydraulic cylinder in this embodiment, it may be constituted by an electric cylinder.

The rear portion of the swing frame 13 is formed in a gate shape, and the coring drum 15 of the present invention is rotatably supported on the rear portion of the swing frame 13. A front end 16 is pivotally supported and extends rearward, and a pressure-reducing roller 17 is rotatably supported at the rear end of the pressure-reducing frame 16.
In the present embodiment, two sub-frames 7 are provided for the main frame 1, two swing frames 13 are further provided for one sub-frame 7, and a total of four coring drums 15 are provided. Although it is configured to be able to rotate up and down independently, one frame or three or more frames or coring drums can be mounted on one frame in parallel, and the number is not limited.

The coring drum 15 is constituted by a hollow cylindrical body, and tines 20, 20.
Are protruded, and the tine 20 is formed in a pipe shape and communicates with the inside of the coring drum 15. When the tine 20 is pierced into the lawn, the lawn and the soil remain in the tine 20 as a core. A new core remains in the tine 20 and the previous core is the coring drum 1
The core is stored in the coring drum 15 every time it is pierced, and the collected core can be discharged from an openable and closable lid (not shown) provided on a part of the outer periphery. Like that.

The tines 20, 20... Arranged on the outer periphery of the coring drum 15 of the present invention are shown in FIG.
As shown in the figure, on the outer periphery of the coring drum 15, a plurality of helical protrusions are provided not in a row, but in a spiral shape. Are configured so that the plurality of tines 20 are not located. When the coring drum 15 is rotated to perform the work, the tines 20, 20. When you pierce the grass G,
The middle row of tines 20M is next to the left row of tines 20L.
However, the right tine 20R is configured to sequentially pierce one by one.

[0013]

According to the present invention, the following effects can be obtained by the configuration described above. That is, the coring drum 1
5 are spirally arranged on the outer periphery of 5, so that the tines 20, 20,.
Can be pierced into the lawn one by one sequentially to the side, the piercing timing is dispersed, the piercing can be performed with a substantially constant pressure, and the pressing force can be reduced.
Not one row at a time, one by one, tine 20
・ ・ Vibration could be reduced because of grounding.

[Brief description of the drawings]

FIG. 1 is a side view in which a coring device is connected to a rear part of a tractor.

FIG. 2 is a front view of the coring device.

FIG. 3 is a perspective view of a coring drum of the present invention.

[Explanation of symbols]

 G Lawn 1 Main frame 7 Sub-frame 13 Swing frame 14 Swing cylinder 15 Coring drum 20 Tine

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01B 45/00-45/04 A63B 57/00

Claims (1)

(57) [Claims] 1. A coring device in which tines are planted on the outer periphery of a coring drum, and the coring drum is rotated to pierce the tine into a field to form a hole. And one coring
On the drum, on one tangent perpendicular to the direction of rotation
Is configured so that no multiple tines are located
When the rotating drum 15 is rotated, the plurality of tines become one
A drum for a coring device, wherein the drum is configured to be pierced one by one .