JPH06319302A - Device for green maintenance operation - Google Patents

Abstract

PURPOSE:To enable excellent maintenance of green irrespective of an amount of topdressing, to reduce times of rubbing of topdressing into green and to shorten an operation time by making brushes at the first line slant by pressure of topdressing in the case of a large amount of topdressing, eliminating tendency of brushes sliding on the surface of topdressing, making turf stand and adjusting the number of brushes to rub topdressing into green corresponding to the amount of topdressing. CONSTITUTION:A device for green maintenance operation is equipped with rear brushes 10 and 14 vertically movably attached to a frame 1 of a grand making vehicle by a raising and dropping means A, a drawing arm 32 having one end attached to the frame and the other fixed to a connecting plate 28 of a front brush 25 positioned ahead the rear brushes, a connecting arm 24 extended from the rear brushes and a fitting plate 27 for coupling the front brush fixed to the front brush in a raised state to the connecting arm.

Description

Detailed Description of the Invention

[0001]

[Industrial field of application] When managing green grass at golf courses, etc., it is necessary to prevent aging of the subterranean parts, including the subterranean shoots, so as many fine roots as possible are taken out from the subterranean shoots and also from the lower part of the upright stems. However, it is important to put the soil in it.

[0002] For this purpose, the present invention rubs the placed soil into the lawn and at the same time smoothes the surface of the soil so that the soil and gravel of various kinds of ground are sometimes used. The present invention relates to an improvement of a green maintenance work device in which many brushes are attached in order to make the surface smooth and uniform.

[0003]

2. Description of the Related Art Conventionally, when the above-mentioned soil soil is put in, a soiling machine spreads the soil soil on a lawn, and the brushing work for rubbing the soil soil to the base of the lawn is performed with a rake. The surface of the turf was smoothed by rolling with a roller and then rolling with a roller.

However, since this work requires a lot of manpower and is time-consuming and inefficient, a rake brush is attached to the vehicle to which the roller is attached, and the soil is the root of the lawn. The brushing work was done by rubbing it on the surface, and the lawn surface was smoothed by rolling the roller.

However, the green on the golf course is not always smooth, and the degree of turf growth and the fineness of the turf are different, and the amount of rubbed soil must be adjusted accordingly. Also, the green is not a perfectly flat surface and has undulations such as a slope, a raised surface, and a recessed surface, so that it cannot be simply leveled on a flat surface.

For this reason, the applicant of the present invention has found that
In the brush device of No. 005 (Japanese Patent Application No. 3-53141) and the green maintenance work device of Japanese Patent Application No. 59-70438, a brush is installed on the lower surface behind the first brush frame in which the brush is planted on the lower surface. It is proposed that the second brush frame that has been planted be attached so as to be movable in the vertical direction.

[0007]

In a lawn such as a green of a golf course, a core is formed by cutting the rhizome of the lawn so that air can be sent to the root of the lawn as well as cutting the rhizome of the lawn. Although the core is removed, a large amount of the soil must be inserted in the soil insert after the core is removed.

In this case, if the soil is rubbed with the two rows of front and rear brushes as described above, the brush becomes inclined backward when the thickness of the soil covered on the grass increases. The rubbing into the grass is incomplete. To prevent this, if the brushes are installed in three rows, if the amount of soil is small,
The brush tends to bite into the soil and carries the soil forward, reducing the amount of soil that is rubbed into the turf eyes, making it difficult to develop good lawn roots. There was a problem of being lost.

When the amount of soil is small, the soil can be put into the core by rubbing it once. However, when the amount of soil is large, the soil can be rubbed back and forth on the same lawn surface. If it is not done, the soil will remain on the surface of the turf, and it will take time to rub the soil.

The present invention is intended to solve the above-mentioned problems, and an object thereof is that when the amount of the soil is large, the brush in the first row is pushed by the soil and becomes slanted. You can get rid of the tendency to slip on the grass and stand the grass,
Moreover, since the number of brushes that rub the soil is adjusted depending on the amount of the soil, good green maintenance can be performed regardless of the amount of the soil and the number of times the soil is rubbed. The purpose is to provide a green maintenance work device that can reduce the work time by reducing the number of jobs.

[0011]

SUMMARY OF THE INVENTION The present invention relates to a means for a green maintenance work device for achieving the above-mentioned object, which means is attached to a frame of a grounded vehicle by an elevating means so as to be vertically movable. A rear brush, an index arm having one end attached to the frame and the other end attached to a connecting plate of the front brush located in front of the rear brush, a connecting arm extended from the rear brush, and the front brush. And a mounting plate for connecting the connecting arm with the front brush being lifted.

A plurality of mounting holes are formed in the connecting plate of the front brush so that the other end of the index arm can be selectively connected to the mounting hole so that the inclination of the front brush can be adjusted. It is desirable that a balance weight be detachably attached to the upper surface of the front brush.

[0013]

The green maintenance work apparatus of the present invention is capable of rubbing the soil with the front brush and the rear brush at the same time, or with only the rear brush, and further with only the front brush. Therefore, it is optimal according to the amount of the soil. If the amount of soil is large and the front brush is tilted, changing the connecting position of the index arm with the front brush allows the front brush to be rubbed upright without rubbing the soil. You can do it to make the grass stand.

Further, when there is a large amount of soil, it is possible to prevent the front brush from tilting backward due to the resistance with the grass surface by changing the amount of the balance weight with respect to the front brush. It can be held at an optimum angle.

[0015]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 4 shows an elevating device A that elevates and lowers a brush frame with respect to the frame 1 of a leveling vehicle for leveling. The rear wheel of this leveling vehicle is a roller B, and the soiling of the soil is described later. After that, the roller B is pressed to smooth the grass.

As shown in FIG. 4, the frame 1 includes
A screw rod 3 having a handle 2 is rotatably supported so as not to move vertically. The nut 5 of the fine adjustment frame 4 is screwed into the screw rod 3, and the slide piece 5a is fitted therein. When the screw rod 3 is rotated by the handle 2, the nut 5 screwed into the screw rod 3 causes the screw 5 to rotate. , Fine adjustment frame 4
Is moved up and down, and the height of the fine adjustment frame 4 can be finely adjusted.

An electric cylinder 6 whose ram moves up and down by rotation of a motor 6a is mounted on the fine adjustment frame 4, and a lifting frame 7 is mounted on the ram of the cylinder 6 by a connecting fitting 8. Therefore, when the cylinder 6 extends, the ram descends to lower the elevating frame 7, but as described above, the fine adjustment frame 4 is moved up and down by an arbitrary amount by the rotation of the handle 2. The lifting frame 7 can be adjusted to the required height.

As shown in FIGS. 1, 2 and 5, the lifting frame 7
An oblique guide hole 9 is formed in the lower surface of the shaft, and the shaft 11 of the first brush frame 10 divided into three in the direction perpendicular to the traveling direction is slidably inserted into the guide hole 9. A shaft rod 7a is arranged upright at both ends of the elevating frame 7, and an upper portion of the shaft rod 7a is inserted into a pipe (not shown) hanging from the frame 1 to lift the elevating frame 7a.
Is configured to be free only in the vertical direction and not to rotate in the horizontal direction.

The lower surface of the first brush frame 10 is formed in a step shape in which the distance from the traveling direction to the ground becomes narrower in sequence. The bottom end of the brushes 12 and 13 are flush with each other, for example, two rows of brushes 12 and 13 are planted in a direction perpendicular to the traveling direction. The first brush frame 10 is raised by the rise of the ram due to the contracting operation of the cylinder 6 of the elevating frame 7, and the brushes 12 and 13 thereof can be separated from the ground.

Further, by lowering it and adjusting the height thereof by the above-mentioned fine adjustment to a predetermined height, the lower ends of the brushes 12 and 13 are brought into contact with the lawn ground. Then, the soil is rubbed against the lawn ground. The bristles 12 and 13 have different bristles or diameters and different lengths, and therefore have different contacting methods with respect to the turf surface. Depending on how dense the soil is, the soil is rubbed against the grass surface.

Numeral 14 indicates a first portion in the direction perpendicular to the traveling direction of the ground leveling vehicle.
The second brush frame 14 is divided into three similarly to the brush frame 10 of the above, and each of the divided second brush frames 14 has a vertical guide hole 15 provided in each of the first brush frames 10. The shaft 16 is inserted into each second brush frame 14
For each first brush frame 10, the shaft 16 has a guide hole 1
It is possible to ascend / descend by ascending / descending in 5 and to incline by rotating the shaft 16 in the guide hole 15.

Each of the second brush frames 14 is attached to the lifting frame 7.
Three arm portions 17 reaching the upper center of the are projectingly provided, and each arm portion 17 is provided with a guide hole 17a,
A screw rod 18 which is erected at substantially the center of each second brush frame 14 is inserted into each guide hole 17a, and a spring 19 wound around the screw rod 18 causes each second brush frame 14 and each arm portion to have a spring 19. 17
It is mounted between and as a compression spring.

A nut 20 is screwed onto an upper portion of the threaded rod 18 through which the arm portion 17 is inserted. The nut 20 is rotated to adjust the length of the threaded rod 18 through the arm portion 17. By increasing or decreasing, the pressing force of the spring 19 against the second brush frame 14 is increased or decreased. Therefore, if the pressing force is increased, the pressing force on each second brush frame 14 is increased so that the pressing force on each ground of each second brush frame 14 is increased. For the brush frame 10 of
You can lean left and right, front and back.

The lower surface of each second brush frame 14 is formed into a flat surface, and on this lower surface, brushes 21 of the same length are arranged in five rows in the traveling direction of the ground terrain vehicle and aligned in the direction perpendicular to the traveling direction. Is provided.

Each second brush frame 14 does not deviate to the rear of the ground leveling vehicle due to the contact resistance between the brush 21 and the ground, and does not delay from the elevating frame 7. Therefore, the spring by the nut 20 is used. When the pressing force of 19 is increased, the soil is rubbed by the brush 21 against the turf surface with a strong force, and when the pressing force is reduced, the soil is rubbed with a weak force.

Moreover, since the second brush frame 14 can be tilted up and down with respect to the first brush frame 10 and is pressed downward at one point near the center, the second brush frame 14 is inclined to the turf surface. If there is ups and downs, follow this and incline back and forth, left and right,
The entire surface contacts the grass surface. Therefore, the second brush frame 14
Even if the lawn surface is inclined or undulating, the soil 21 is rubbed against the lawn surface with the force corresponding to the strength of the spring 19 whose contact pressure is adjusted while the brush 21 is in contact with the entire surface of the lawn surface. It can be crowded.

Further, since the shaft 11 of the first brush frame 10 is movable along the oblique guide hole 9 of the elevating frame 7, the first brush frame 10 is used for turning the ground leveling vehicle. Depending on the inclination of the vehicle or the difference in turning radius between the outer diameter and the inner diameter, it is possible to incline or delay the traveling direction.

In such a green maintenance work device, when a large amount of soil is put in the soil after core removal, for example, when the soil is put to a thickness of 3 mm or more. , Brushes 12, 13 pressed against a large amount of soil
Since 21 is tilted and the soil cannot be rubbed against the grass, it is possible to add a further row of brushes 23 to the front side of the brush 12.

The front brush frame 2 for planting the brush 23
5 is divided into two parts on the left and right, so that the brush 23 does not have a non-brush portion between the left and right front brush frames 25, and the left and right front brush frames 25 overlap each other in the advancing direction at the portions where they contact each other. It has a planar shape that protrudes due to discrepancies.

For this purpose, the square pipe-shaped connecting arms 24 are arranged on the left and right sides so as to project forward on the upper surface of the elevating frame 7.
Two attachment plates 26 are attached to the central portion of each front brush frame 25, which is fixed in place and on which the brush 23 is planted on the lower surface, at a distance slightly wider than the outer width of the connecting arm 24. There is.

A plurality of mounting holes 26a (three rows in the figure) are formed in each mounting plate 26 in the vertical direction, and the shaft pin 27 can be inserted and fixed in the mounting holes 26a. . When the front brush 23 is not used, the front brush frame 25 is lifted and the shaft pin 27 is inserted into the lower mounting hole 26a of the connecting arm 24 located between the mounting plates 26. Thus, the front brush frame 25 can be held in a state where the brush 23 does not contact the grass surface.

On the front surface of the front brush frame 25, a connecting plate 28 having a plurality of connecting holes 28a vertically formed (three rows in the figure) is attached, and the frame 1 of the ground leveling vehicle is attached. The support arm 30 is attached so that the attachment pipe 29 fixed to the lower end of the front brush frame 25 is located forward.

A connecting plate 31 which is suspended from the mounting pipe 29 and fixed thereto, and a mounting hole 28a for the connecting plate 28.
Is connected by the index arm 32. By changing the connecting position of the index arm 32 and the mounting hole 28a, the inclination of the front brush frame 25 is changed, and the grass of the brush 23 is inclined so that the lower end is inclined forward. The angle with respect to the surface can be changed.

Therefore, when the amount of soil is large and the resistance applied to the brush 23 is great, the brush 23 is inclined forward by connecting the index arm 32 to the mounting hole 28a located below the connecting plate 28. Therefore, the brush 23 comes into contact with the lawn surface at a substantially right angle against the resistance force, and the brushes 12, 13 of the first brush frame 10 are contacted.
And the positions of the brushes 23 of the front brush frame 25 can be aligned, which allows the brushes 23, 12, 13, 2 of the three parties to be aligned.
With step 1, the soil can be rubbed onto the grass.

On the upper surface of each front brush frame 25, two bars 33 are planted on the left and right sides of the mounting plate 26.
A balance weight 34 having holes formed at the same intervals as the bar 33 of the book can be mounted and mounted on each front brush frame 25 by fitting the holes in the bar 33.

In this case, the position of the mounting hole 28a of the connecting plate 28 for mounting the index arm 32 is changed depending on the amount of the soil so that the tip of the brush 23 tilts forward.
Alternatively, the brush 23 may be adjusted to a vertical state or the like, and the balance weight 3 may be adjusted according to the change in the amount of soil.
By changing the contact pressure applied to the turf surface to the brush 23 by means of 4, it becomes possible to rub in correspondence with the amount of soil.

If the amount of the soil is relatively large after the core is removed and the soil has a thickness of about 2 to 1 mm, the brush 2 is used.
The position of the mounting hole 27a through which the shaft pin 26 is inserted is changed so that the lower end of the brush 3 is higher than the height of the brushes 12 and 13 so that the brush 23 does not contact the ground. , 21 for rubbing.

Further, when the amount of soil is less than 1 mm, the height of the brush 23 with respect to the brushes 12 and 13 is lowered to bring only the brush 23 into contact with the ground, and the amount of the balance weight 34 is adjusted. The brush 23 is used to rub the soil so as to correspond to the small amount of the soil. In this embodiment, the number of brushes to be rubbed can be changed according to the amount of soil and the degree of expansion of the turf.

[0039]

As described above, according to the present invention, it is possible to rub a large amount of soil after core removal with the front brush and the rear brush, and to rub the soil. Since the inclination of the brush can be prevented by changing the connecting position of the index arm with the front brush, the soil can be rubbed in favorably.

In addition, when the amount of normal soil is not small after core removal, the front brush can be lifted with respect to the rear brush so that the front brush is used or the front brush is attached to the rear brush. By lowering the soil, the soil can be leveled with only the front brush, so that the amount of soil can be variously dealt with.

Further, when there is a lot of soil, it is possible to prevent the front brush from tilting backward due to the resistance with the lawn surface by changing the amount of the balance weight with respect to the front brush. In addition to being able to hold the grass at an optimum angle, the grass can be raised, and the number of times of rubbing can be reduced, so that the working time can be shortened.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is a side view when a balance weight is placed on the front brush frame.

FIG. 4 is a side view of a lifting device for a lifting frame.

FIG. 5 is a perspective view of a first brush frame portion and a second brush frame portion.

[Explanation of symbols]

 10 first brush frame 12, 13, 21, 23 brush 14 second brush frame 15 guide hole 16 shaft 19 spring 24 connecting arm 25 front brush frame 26 shaft pin 27 mounting plate 27a mounting hole 32 index arm

Claims (3)

[Claims] 1. A rear brush movably attached to a frame of a leveling vehicle by an elevating means and a connecting plate of a front brush having one end attached to the frame and the other end located in front of the rear brush. Green maintenance comprising: an attached index arm, a connecting arm extended from the rear brush, and a mounting plate mounted on the front brush and connecting the connecting arm with the front brush lifted. Working equipment. 2. The connecting plate of the front brush is formed with a plurality of mounting holes so that the other end of the index arm can be selectively connected to the mounting hole so that the inclination of the front brush can be adjusted. The above-mentioned claim 1 characterized in that
Green maintenance work device as described. 3. The green maintenance work device according to claim 1, wherein a balance weight is detachably attached to an upper surface of the front brush.