JPH04207103A - Turf-laying machine - Google Patents

Abstract

PURPOSE:To form a lawn having even surface and uniformly grown state by grading the ground with a grading mechanism having tilling tools, stamping roller, etc., after passing a running vehicle over the ground. CONSTITUTION:The groove formed by the passage of a running vehicle 8 is leveled with a tilling tool 31 and a stamping roller 32 and then roughened with a grounding tool 39. The groove formed by the running vehicle can be graded to a state nearly equal to the finished ground free from the passage of the wheels.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lawn spreading machine for creating a lawn by laying a mat-like cut grass formed in a predetermined shape such as a rectangle on the ground.

[Conventional technology]

The above-mentioned lawn mowing machine is a lawn mowing machine that is equipped with a chute at the rear of a wheel-travelling machine, as shown in Japanese Patent Application No. 1-316888 previously filed by the present applicant. A tensioning machine has been proposed. In the configuration according to this proposal, since the wheels of the machine do not pass through the cut grass laid on the ground, it is easy to maintain a good condition after it is laid.

[Invention or problem to be solved]

However, the conventional configuration has the following disadvantages.

In other words, the ground on which cut grass is usually laid is tilled in advance to ensure better rooting after laying, so there will be clear dents in the place where the wheels pass, and the cut grass supplied there will also become dented. As a result, the installation condition was likely to be adversely affected, and there was room for improvement.

The present invention aims to eliminate the above-mentioned disadvantages.

[Means to solve the problem]

The present invention provides a turf spreading machine, which is equipped with a device at the rear of a traveling machine that supplies cut grass down to the ground, and between the feeding device and a traveling device of the machine body in the front-rear direction, a device is provided on the ground after passing through the traveling device. A soil leveling mechanism is provided, and the soil leveling mechanism is connected to a tiller that tills the ground, a compacting roller that compacts the ground cultivated by the tilling tool, and a compacting roller that roughens the surface of the compacted ground. The characteristic configuration is that the grounding tools are arranged in this order from front to back.

[For production]

According to the above configuration, even if the ground to be cut and laid sod is dented by the passage of the traveling device, the dent is eliminated by the tilling action of the tiller, and by the pressing action of the pressing roller that flattens and flattens the tilled ground, The ground will be releveled before the cut grass is supplied.

Furthermore, since the ground surface after passing the pressure roller can be roughened with a grounding tool, the rooting condition is better compared to when the ground surface is grown on a smooth ground surface after passing the pressure roller without this grounding tool. This has the advantage of allowing the roots to quickly extend into the ground and integrate into the ground at an early stage, making it possible to match the dented area caused by the traveling device to the surface finish of the ground where the wheels do not pass, at a higher level. .

〔Effect of the invention〕

Therefore, even though cut grass is supplied to the ground after passing through the traveling device, the conventional inconveniences can be improved and the grass can be laid without partially denting the grass surface after it has been laid. It has been possible to realize a practically excellent lawn spreading machine that minimizes the difference in the growth state of the grass between the ground where the traveling device passes and the other ground.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

As shown in Fig. 1, a turf storage device (4) and a turf loading platform are attached to a machine body (3) having a driving part (1) and a driving part (2), with the turf storage device (4) on the rear side of the driving part (2). (5), and a supply device (A) with four rows of grass supply shoes h (6) lined up in the lateral direction of the machine is attached to the rear of the machine (3), so that four rows of grass can be spread at the same time. The lawn mowing machine is constructed so that the lawn mowing machine can run with a steering front wheel (7) and a driving rear wheel (8).

The storage device (4) stores cut grass (10 layers stacked in a bundle) (
9)... are stacked in the frame (11) with pedestals (10) on which a large number of... are placed in two rows, front and back, and hydraulic cylinders (
12), a pulley (13) attached to the telescopic rod, and a wire (14) constitute an elevating mechanism (15).

In other words, connect one end of the wire (I4) to the fuselage frame (I6).
), and the other end is connected to the pedestal (1o), and a switch (17) that automatically stops the extension movement of the hydraulic cylinder (I2) when it comes into contact with the upper group of cut grass (9) is attached to the frame. frame(
II).

In this turf spreading machine, in addition to the operator, the operator also stands on both the left and right sides of the turf platform (5) and feeds the stored cut turf (9) to the feeding device (A).
There are two workers on board who are responsible for supplying the cut grass (9) in sequence from the frame frame (11), and when the workers take out the upper bundle of cut grass (9) from the frame (11), they operate the lifting mechanism (15) and lift it to the pedestal (1o).
), and when the topmost cut grass reaches the height of the switch (17), it will automatically stop. The cut grass (9) that has been taken out is put through a chute (9) by hand by two workers.
6) Receptacle (19) with supply guide (18) at the upper end
) and supply them sequentially.

Next, the supply device (A) will be explained.

As shown in FIGS. 1 to 3, the chute (6), the conveyance mechanism (B), the ground leveling mechanism (C), etc. provided at the lower end of the chute (6) are connected to the lower arm (20a) and the upper arm (20b). A pantograph-type link mechanism consisting of (
20) and a hydraulic cylinder (21), the feeding device (A) is connected to the body (3) so as to be movable up and down. The transport mechanism (B) consists of a rotating body (22) and an electric motor (23), and the rotating body (22) is supported by the chute side wall (6a) so that it can be driven and rotated by the electric motor (23) around the horizontal axis (Pl). It has been done. The rotating body (22) has many protrusions (
It has a cylindrical shape with a protrusion (22a) provided thereon, and is disposed close to the protrusion (22a) so that it bites into the cut grass (9) on the grass transfer surface (6b) of the chute. ) is a rotating body (
The cut grass (9) is forcibly transferred toward the guide tool (24) by driving rotation in the direction of the arrow (a) in 22), and the cut grass (9) is engaged at the lower end position of the chute (6) by stopping the rotation. It's about keeping it still.

The guide tool (24) is for changing the posture of the cut grass (9), which is downwardly sloped and is being transferred downward from the chute (6), to a substantially horizontal state along the ground. It is supported by an extension of the chute side wall (6a) at a predetermined distance downward from the lower end so that the angle of inclination about the horizontal axis (P2) can be adjusted. In addition, above the second guide tool (24), a sensor wheel (25) that contacts the cut grass (9) passing over the guide tool (24) from above and rotates along with the sensor wheel (25) is swing-supported by an arm (26). It has been done,
A speed detection mechanism (D) is configured that can measure the speed at which the cut grass (9) is fed out just before it reaches the ground by detecting the rotational speed of the sensor wheel (25).

As shown in Figure 2, the lower end of the chute (6) and the guide tool (
24), there is a tongue piece (28) that can swing freely around the horizontal axis (P4) that presses the microswitch (27), which is a pressure sensor, or a grass transfer surface (6b) of the chute (6). It is placed slightly inward (downward). In other words, the rear end of the cut grass (9), which is transferred from the lower end of the chute (6) to the guide tool (24) in a curved manner, or the chute (
6), the rear end of the cut grass (9) or the tongue piece (28) is pushed and the micro switch (27) is actuated by the behavior of the cut grass (9) to return to the flat state from the curved state when it comes off.

As shown in FIGS. 4 and 5, the front and rear wheels (7) are located between the rear wheel (8) and the lower end of the chute (6) in the front-rear direction.

(8) Tilling teeth (cultivating tools) that act on the passage marks
(31), a pressing roller (32) disposed immediately after the tooth (31), and a large number of rakes (grounding tools) (39) for roughening the ground on which the pressing roller (32) passes. The ground leveling mechanism (C) is configured by:

There are four teeth (31) in total, two on the front side and two on the rear side, and a forward-facing arm (31) to which these teeth (31) are fixed.
33) to the horizontal axis (P) at the bottom of the chute (6).
3), and at its front side there is a shock absorber (36) consisting of a sliding rod (34), a coiled spring (35), etc.
), it is attached to the chute (6) in a state where it can swing upward and is biased downward.

The pressure roller (32) is connected to the lower end of the chute (6) via an arm (37), and is biased downward by its own weight to bring the ground tilled by the teeth (31) to the same level as the surrounding ground. It acts as a suppressor.

A large number of rakes (39) are mounted on a horizontal frame (4) supported at the lower end of the chute (6) so as to be swingable around the left and right axis (P5).
0) in a backward cantilevered manner.

As shown in Figure 6.7, the partition (
42) is the installation. This partition (42) consists of a pair of channel members (43) and (44) facing each other, and these are installed by making the holes into horizontally long holes.
2) The width can be changed. This allows the chute (6) to accommodate cut grass (9) of different widths.

[Another example]

As shown in FIG. 8, instead of multiple rakes (39),
It may be provided with a large number of chains (39).

Further, it may be possible to install a brush-like grounding tool rotatably or in a fixed state.

It should be noted that the present invention is not limited to the structure of the attached drawings by adding numerals in the claims for convenient comparison with the drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the turf spreading machine according to the present invention, in which Fig. 1 is an overall side view, Fig. 2 is an enlarged sectional view of the lower end of the feeding device, and Fig. 3 is a plan view showing the state in which cut grass is laid. Fig. 4 is a side view showing the soil leveling mechanism, Fig. 5 is a plan view of the ground leveling mechanism, Fig. 6 is a cross-sectional view of main parts showing the structure of the chute, and Fig. 7 is a sectional view showing the structure of the partitioning tool. FIG. 8 is a side view showing another embodiment of the ground leveling mechanism. (3)... Airframe, (8)... Traveling device,
(9)...Cut grass, (31)...Cultivating tool, (32)...Pushing roller, (39)...
・・Grounding tool, (A)・・・Supply device, (C)・・・
...Earning mechanism.

Claims (1)

[Claims] A supply device (A) for supplying cut grass (9) down to the ground is provided at the rear of the traveling aircraft (3), and the supply device (
A) and the traveling device (8) of the aircraft body (3) in the longitudinal direction, there is provided a ground leveling mechanism (C) that acts on the ground after the traveling device (8) has passed, and the ground leveling mechanism (C) ), a tiller (31) that tills the ground, a compacting roller (32) that compresses the ground tilled by the tilling tool (31), and a compacting roller (32) that roughens the surface of the ground compacted by the compacting roller (32). A lawn mowing machine configured by arranging grounding tools (39) in this order from front to back.