JP3217608B2 - Coring device drum - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention
The present invention relates to a coring device for appropriately drilling holes.

[0002]

2. Description of the Related Art Conventionally, a large number of holes are regularly formed in a lawn of a golf course or the like so as to penetrate a hardened layer of a lower layer of the lawn so that drainage is improved and air is allowed to pass to prevent a growth defect. Managed to. A spike device or a coring device is used as a device for making a hole in the lawn. The coring device protrudes a large number of tines around the drum, connects a plurality of the coring drums rotatably, and connects the coring drum. It was towed and rotated to make the tine bite into the ground and make a hole. The side cover of the coring drum was made of an integral member.

[0003]

However, depending on the conditions in the field, the side cover may need to be replaced with a coarse or fine mesh. Conventionally, the side cover of the coring drum is an integral member. Therefore, every time it is exchanged, the connection with the swing arm must be removed, which is troublesome. In addition, when the tine is replaced due to wear or breakage of the tine, the connecting portion with the swing arm is removed, and the tine is inserted and tightened from the inside of the coring drum, so that there is a problem that the work is troublesome. .

[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, the coring drum is positioned at the center.
The rotating shaft support is horizontally mounted, and the rotating shaft support and the coring drum
Between the outer circumferences of the
After connecting them, a mounting flange is fixed on the outer surface of the stay.
Side of the coring drum
A bar is provided and the side cover is divided into a plurality of cover members.
The cover members are fixed to the mounting flange by tightening.
Possible and fix the coring drum to the swingarm
The side cover from the coring drum
It is obtained by a resident.

[0005]

The following effects are obtained by using such means. Since the side cover of the coring drum is divided and detachably attached, the side cover can be attached to the coring device body without removing the connection portion with the swing arm, and one side cover is attached to the coring device body. You can also replace the tines by removing them one by one.

[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 an assembled perspective view of a drum of the coring device of the present invention,
FIG. 4 is a side cross-sectional view showing a mounted state of the tine, and FIG. 5 is a bottom view showing a mounted state of the tine.

In FIG. 1 and FIG. 2, a coring device B is mounted on a three-point link type working machine mounting device A mounted on the rear part of the tractor T, and the coring device B is a main-portion-shaped main unit. Brackets 10.1 on both lower sides of frame 1
0 is provided. The pivot pins 3.3 for attaching the lower links 2 to the brackets 10 are protruded, and the support frame 1a is laid horizontally at the upper and lower centers of the main frame 1,
A pivot 1b for pivotally supporting the top link 4 is provided at the center in the left-right direction of the support frame 1a. Further, locking portions 1c are provided at the front center of the upper portion of the main frame 1, 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 part of the main frame 1, pivotal stays 6.6 are erected, and support erected on the center upper part of a sub-frame 7.7 formed on the pivotal stay 6.6 in a gate shape. The stays 7a are pivotally supported by the pins 9.9, and the sub-frame 7.7 is rotatably supported around the pins 9.9. A support stay 7b is vertically provided at the lower center of the sub-frame 7. Then, a dump cylinder 11 is interposed between the support stay 7b and the bracket 10, and the sub-frame 7 is rotatable by expanding 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 lower front, and a front end of the swing arm 13 is rotatably supported at the tip of the support plate 12 so as to be rotatable in the middle of the support plate 12. A swing cylinder 14 is interposed as an actuator between the swing cylinder 13
The swing arm 13 can be turned up and down by expanding and contracting the swing arm 4. 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.

A rear portion of the swing arm 13 is formed in a gate shape. A coring drum 15 is rotatably supported at the rear portion of the swing arm 13, and a front end of a pressure-reducing frame 16 is provided at a rear end of the swing arm 13. It is pivoted and extends rearward. A pressure reducing roller 17 is rotatably supported at the rear end of the pressure reducing frame 16. In this embodiment, two sub-frames 7 are provided for the main frame 1, two swing arms 13 are further provided for one sub-frame 7, and a total of four coring drums 15 are provided.
Are capable of rotating up and down independently of each other, but it is also possible to mount one or more frames or coring drums on one frame in parallel,
The number is not limiting.

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 each time it is pierced during operation, and this core can be discharged from an openable and closable lid (not shown) provided on a part of the outer periphery. I have to.

The tines 20, 20... Arranged on the outer periphery of the coring drum 15 of this embodiment 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. With this configuration, 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 can be reduced because of grounding.

The coring drum 15 has a rotating shaft support 15a suspended in the center thereof and radially arranged stays 21, 21 ... between the rotary shaft support 15a and the outer periphery of the coring drum 15. Are fixed to the outer surface of the stays 21 by welding or the like, and bolts 22a, 22a,... Are provided on the same radius of the side plate mounting flange 22.・ Protrusions are provided at equal intervals. On the other hand, a net-like side cover 24 having a size corresponding to the side surface of the coring drum 15 is divided into a plurality. In the present embodiment, the cover member 24 is divided into
a.24a, and if it is further divided, it becomes a fan-shaped cover member. The cover members 24a have holes 23 at positions corresponding to the bolts 22a.
23 are opened, and the bolts 22a
.. Holes 23 of cover members 24a
Are inserted and tightened and fixed with nuts 26 through the flat washers 25. Therefore, the nuts 26, 26.
By removing 25..., The side cover 24 can be divided and removed one by one without removing the swing arm 13, and conversely, can be attached to the coring drum 15.

In this embodiment, as shown in FIGS. 4 and 5, the tine 20 is attached to the coring drum 15 by pivoting fulcrum pins 20a, 20a to both sides from the base of the tine 20. The coring drum 15
Are open spirally and long in the rotation direction, and the tine 20 is inserted from the inside of the long hole 15b toward the outside, and the rotation fulcrum pin of the tine 20 A tine bracket 27 is fixed so that the tine brackets 20a are rotatably supported on both sides of the elongated hole 15b.
In other words, the tine bracket 27 has the long hole 1 at the center.
5b, an opening 27a larger than 5b is opened.
The center portions 27b, 27b of both sides are bent in an inverted U-shape to rotatably support the pivot pins 20a, and the tine bracket 27 is fixed to the locking bolts 29.2.
At 9, it is fixed to the coring drum 15,
Is rotatably mounted in the range within the elongated hole 15b.

With this configuration, just before the coring drum 15 rotates and the tine 20 pierces the lower field, the tine 20 rotates in a substantially vertical direction, and the Can be pierced. When the tine 20 is damaged, the side cover 2
4 can be removed and the tine 20 can be replaced from inside.

[0016]

According to the present invention, the following effects can be obtained by the configuration described above. That is, the coring drum 1
5 side cover 24 with a plurality of cover members 24a.
And the side cover 24 is detachably attached to the side of the drum. Therefore, when it is necessary to replace the side cover 24 depending on the condition of the field, the connection with the swing arm 13 can be removed. , Flat washer 25
.. and the nuts 26, 26... Can be replaced while being mounted on the coring device B main body, and the tine 20 can be replaced simply by removing the side cover 24. The work can be performed easily and in a short time while the ring drum 15 is mounted on the coring device B.

[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.

FIG. 4 is a side cross-sectional view showing a tine attachment portion.

FIG. 5 is a bottom view showing a mounting portion of the tine.

[Explanation of symbols]

 B Coring device 13 Swing arm 15 Coring drum 20 Tine 24 Side cover 24a Cover member

Claims (1)

(57) [Claims] 1. A studded tines coring drum periphery, the coring device drilling holes pierce the tines in the field by rotating the coring drum, Koarin
The drum has a rotating shaft support section laid in the center,
Radially arranged between the section and the outer periphery of the coring drum
Connected via multiple stays and attached to the outer surface of the stay
Secure the flange, while keeping the flange on the side of the coring drum.
Provide a side cover of the size that matches
The cover members are divided into
The coring drum can be fixed by tightening to the flange.
With the side cover fixed to the
A drum for a coring device, which is detachable from a coring drum.