JPS5942802Y2 - Powered portable lawn aeration machine - Google Patents

Description

[Detailed explanation of the invention] If the lawn zone is left unattended, the soil will solidify, the roots of the grass in the soil will be hindered from growing, and the growth of the lawn itself will also be hindered.1
cormorant.

In areas where you walk on grass, such as golf courses, the ground becomes even more compact, making it even more difficult for the grass to grow.

This is because grass requires soft, aerated soil to grow.

For this reason, grass has traditionally been grown by walking around wearing spiked shoes or by using nail-like points to penetrate holes, but the former method naturally has a limit on the depth, while the latter The disadvantage of this method is that it requires a lot of effort.

There are also large self-propelled machines that operate a large number of tines using a crank mechanism, but they are too expensive to use on the greens of golf courses, for example, or
If the lawn is a sloped surface, it is practically impossible to introduce these large machines.

In view of the current situation, the present invention is designed to be a powered transportable machine, and the operation of penetrating the hole into the soil is to automatically insert several fork-shaped spikes deep into the soil using a marking mechanism powered by a prime mover such as an engine. , When pulling this out, without lifting the machine, use the wheels attached to the machine as a fulcrum and pull it out.
Furthermore, when moving, the machine can be easily turned around using the rollers without having to lift it, and the spikes are formed into a tapered tube shape with a sharp tip so that the soil can be excavated to the ground surface when drilling. The company provides lawn aeration machines.

Its structure will be explained with reference to the drawings.

In Figures 1 and 2, button 1 is a basic rod that integrates two crankcases, three cylinders, and four cylinders.

Reference numeral 5 denotes a stamping device using an eccentric mechanism, in which an eccentric disk 7 is attached to a rotating shaft 6 which is mounted on a bearing (as shown).
The eccentric disk 7 loosely fits an eccentric 8 integral with a connecting rod 8'.

The lower part of the connecting rod 8' is pivoted to the hammer 9 and moves up and down within the cylinder 4 in response to transmission from the engine, as will be described later.

A consists of an interlocking rod 10 with a slot 10' bored with a punching tool, a plurality of spikes 11 fixed to the rod, and a board 12 on which the spikes are mounted in parallel.

The shape of this spike 11 is at the rear of the aircraft, that is, at the fulcrum device 1B.
It is curved in the direction, and its cross section is circular or diamond-shaped, with a sharply tapered tubular shape, and its length is such that it follows a sufficiently deep hole.

A screw hole 12' is formed in the substrate 12, and a screw portion 11' at the large diameter end of the spike is screwed into the hole and tightened with a nut.

Then, the interlocking rod 10 is inserted into the lower side of the cylinder 4,
A pin 13 is inserted into a hole drilled in the cylinder side wall and the slot 10', and is attached integrally with the base rod 1, so that the vertical movement of the hammer 9 is controlled within the length of the slot 10'. It is linked together.

Reference numeral 14 denotes a buffer connecting tube inserted into the base tube 3 via a spring (as shown), which buffers vibrations caused by stamping operations.

Reference numeral 15 denotes a handle, and the lower end of the handle rod 16 is connected to the buffer connecting cylinder 14 by a pin 17.

Reference numeral 18 denotes a fulcrum device, in which a roller-shaped wheel 21 is mounted on a mounting bracket 19 fixed to the fuselage via a support rod 20, and the shaft engages the support rod 20 with a hole 19' drilled in the mounting bracket. The height of the fulcrum can be adjusted by fixing it with dowel bolts, etc., and it can be moved freely by rolling wheels.

Reference numeral 22 designates an engine mounted on the fuselage by means of a support rod 23 and a suspension rod 24, 25 a pulley on the engine side, and 26 a pulley on the rotating shaft of the eccentric mechanism.

Then, when the engine 22 is started, the rotation of the pulley 25 is
transmission from the pulley 26 to the rotating shaft 6 via the belt, the eccentric disc 7 rotates eccentrically within the crankcase 2, and the stamping element 9
moves up and down.

And stamp 9. stamps the top of the interlocking rod 10, and the rod 1
0 drops shockingly at 1 when the upper end of the slot 10' abuts on the bottle 13.

Base rod 1 then descends under the weight of the aircraft and returns to its original state.
This action is repeated continuously.

At this time, vibrations are generated in the fuselage body, but they are damped by the buffer connecting tube 14, and the vibrations are hardly transmitted to the handle 15.

When the handle 15 is gripped and the boring tool is set up on the grass strip, the spike 11 penetrates deeper into the soil than the ground surface by the stamping operation and receives soil into the pipe.

As mentioned above, this penetration is normally carried out by the weight of the machine body, but if the soil is extremely hard, the handle 15 is pressed as an aid.

When the spike 11 penetrates into the soil and the substrate 12 comes into contact with the ground surface, the penetration operation stops.

Next, when the handle 15 is pulled forward and backward, the machine rotates using the wheels 21 as a fulcrum and the support rod 20 as a lever, as shown in Figure 4, and the spikes 11 are pulled out of the soil and completely drilled. .

Next, by holding the handle 15 and turning the wheel 21 to move it, and performing the same operation as described above, the ±27 received in the tube of the spike will be pushed upwards from within the tube, and the next ±27' will be received.

After drilling the hole in this way, fertilizer is sown into the hole as appropriate, and then the excavated soil is filled in.

Note that it is also possible to carry out the work of compacting the ground surface by rolling the wheel 21 over the buried soil.

In the present invention, the spike 11 has a sharply tapered tube shape as in the above structure, so when the spike 11 is inserted into the soil, the soil in that part is received inside the spike tube, and the next time the spike is inserted, it is brought to the ground surface outside the tube. Eventually, the hole is able to dig out the soil to form a complete hole, and after fertilization, the hole can be filled again with the soil that was dug out.

Moreover, since this spike is curved in the direction of the rear fulcrum device, it can be easily removed from the soil when the handle is pulled forward (to the right in FIG. 1) using the shaft as a fulcrum.

Additionally, since the fulcrum device is equipped with roller-like wheels, there is almost no damage to the grass when pulling out the spikes 11, and when you finish an operation and move on to the next operation, hold the handle and turn It is easy to move because all you have to do is transfer,
The hole can be positioned reliably, and the soil and the soil surface of the hole can be compacted using the wheels, so the proposed machine can perform two tasks without having to go to the trouble of preparing a separate compaction machine. There is.

This invention also includes a stamping device using an eccentric mechanism on the base rod.
A handle is attached above the machine, and a drilling tool is attached to the engine and below, so the penetration of the spike into the ground is automatically carried out by the body's own weight, so all the operator has to do is lightly grasp the handle. Since it can be perforated and the whole body is compact, it is easy to carry even on slopes and narrow places, and it is easy to move with the wheels.

However, the proposed machine can be manufactured at low cost, and can be used at golf courses, parks, etc.
Aerating work on vast lawn areas such as green areas can be done quickly and effectively with light labor.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention: Fig. 1 is a side view, Fig. 2 is a partial sectional view of Fig. 1, Fig. 3 is a partially cutaway front view of the drilling tool, and Fig. 4 is a state in use. FIG. 5 is a schematic side view showing the state in which the drilling tool is inserted into the soil. A...Drilling tool, 2...Crank case, 4...Cylinder, 6...Rotating shaft, 7...Eccentric disc, 9.・・・
Stamp, 10, ... Interlocking rod, 11. ...Spike, 14
0.・Buffer connection tube, 15. ,,handle, 18... fulcrum device, 20.0. Support rod, 21 +++ Roller wheel, 2
2. ,, prime mover.

Claims (1)

[Scope of utility model registration request] A handle is attached to the upper part of the base rod which has a crankcase and a cylinder through a buffer connecting tube, and inside the cylinder there is a hammer at the top and an interlocking rod equipped with a number of spikes at the bottom which moves up and down. A fulcrum device that freely holds the hammer, drives the hammer by a prime mover and an eccentric mechanism, has a sharp tapered tubular shape with the sharp end curved toward the rear of the machine, and has a roller-shaped rolling wheel below the base rod. A powered portable lawn aeration machine.