JP3555113B1 - Ground strainer - Google Patents

Abstract

【Task】
The problem is that anyone can easily remove relatively small pebbles and level the ground, and can perform leveling work in a short time by pulling with a motorcycle, bicycle, or car.
[Solution]
A plurality of elongated flat plates 2 to 7 are provided obliquely upward from one end of the elongated rectangular scooping plate 1, and the scooping plates are provided at both end portions on the scooping plate 1 and the flat plates 2 to 7 and at a plurality of intermediate positions thereof. The scooping plate 1 and the flat plates 2... 7 are arranged in a stepwise manner via gap members 10...
[Selection diagram] FIG.

Description

  TECHNICAL FIELD The present invention relates to a method for leveling work while removing pebbles, dust and the like in the soil of a sports ground, a tennis court, a park or a sandbox.

  BACKGROUND ART Conventionally, as a method of leveling the ground such as a sports ground, a tennis court, and a park, a court brush, a ground rake (sand leveling), and the like are used. The coat brush is a brush that is simply leveled by stroking the ground with bristles implanted on the underside of an elongated square timber. In addition, the ground rake also attaches a gripping rod to a slender rectangular plate or angle made of wood, iron, aluminum, etc., and moves it over the ground at a certain angle to level the rough ground and remove the raised soil and sand. All you have to do is scrape it and bury it in the hollow. Further, the applicant has previously disclosed in Japanese Patent Application No. 2002-003310, using a rotating brush or a roller attached to the front part to flip up earth and sand, pebbles, and dust onto a net, and filter and drop the net by the net. He proposes a method of leveling the soil with brush rollers or rollers attached to the rear.

Japanese Patent Application No. 2002-003310

  Before starting the competition on the ground, it is necessary to perform maintenance work. It is the task of leveling the rough ground with a coat brush or a ground rake (sand leveling), but it takes a lot of time since people have to walk around. In addition, there are naturally mixed pebbles, garbage, dead leaves, etc. in the wide ground, and when playing baseball or tennis, these may change the direction of the ball during the competition and cause errors or injuries. It must be removed because it can have a significant effect on players. We often see many pebbles on elementary schools, nursery schools, kindergartens and park grounds, but there is a high possibility that children playing in them will get hurt. Furthermore, the applicant proposes that the maintenance tool proposed in the above-mentioned Japanese Patent Application No. 2002-003310 can be quickly filtered and leveled when the ground sand is used in a dry state, but contains a lot of moisture. When used on a rough ground, there is a problem that soil and pebbles are clogged in the brush of the brush roller and the soil on the net remains unfiltered and becomes too heavy to be pulled.

  In view of the above, the present invention has been made to solve the problem that anyone can easily remove relatively small pebbles and level the ground, or perform a leveling operation in a short time by pulling with a motorcycle, a bicycle, a car, or the like. Things.

Therefore, a ground strainer according to claim 1 of the present invention (hereinafter referred to as the present invention 1) comprises a plurality of elongated flat plates 2 to 7 which are diagonally upward from one end of an elongated rectangular scooping plate 1. The scooping plate is provided at both end portions on the scooping plate 1 and the flat plates 2 to 7 and at a plurality of intermediate positions thereof via gap members 10 ... 10 longer than the width of the scooping plate 1 and the flat plates 2 to 7. 1 and the flat plates 2 to 7 are arranged in a stepped manner.

  With such a configuration, when the scooping plate 1 is moved by rubbing the ground, the earth and sand pushed up on the scooping plate 1 is caused by the gap between the scooping plate 1 and the flat plates 2 to 7, Garbage can be filtered off.

Claim 2 wherein ground strainer device (hereinafter, referred to as the present invention 2), instead of the gap timber 10 ... 10 according to claim 1, shaped plate 8 ... the bottom and rear of the shape was stepwise A characteristic feature is that the scooping plate 1 and the flat plates 2 to 7 are provided at a plurality of positions parallel to each other at a right angle to the scooping plate 1 and the flat plates 2 to 7, and the scooping plate 1 and the flat plates 2 to 7 are arranged in a stepwise manner.

  With such a configuration, the ground strainer of the second aspect of the invention can filter and remove pebbles and dust as in the first aspect of the invention.

The ground strainer according to claim 3 (hereinafter, referred to as the present invention 3) is the ground strainer according to claim 1 or 2 , wherein the net 13 is provided at a lower portion and a rear portion of the scooping plate 1 and the flat plates 2 to 7. It is characterized by:

  With this configuration, the ground strainer of the third aspect of the present invention provides a small pebble, which is obtained by filtering small pebbles and dust once filtered in the gap between the scooping plate 1 and the flat plates 2, 3 to 7 by the net 13 provided on the bottom surface and the rear surface. , Can be removed by filtering the garbage.

The ground strainer according to claim 4 (hereinafter, referred to as the present invention 4) is the ground strainer according to claim 1, 2, or 3 , wherein the side plates 9, 9 are provided on both side surfaces of the scooping plate 1 and the flat plates 2 to 7. It is characterized in that bearings are provided at the front ends of both side plates 9 and 9 and brush rollers 19 having wheels 18 and 18 attached to both ends are rotatably supported.

  With this configuration, when the strainer of the fourth aspect of the present invention is rubbed on the ground and pulled by a person, the brush roller 19 fixed to the wheels and supported by the side plates 9, 9 rotates and scoops. The earth and sand pushed up on the scooping plate 1 from the front of the plate 1 can be flipped up from the flat plates 2 to 7 so that pebbles and dust can be easily filtered.

The ground strainer according to claim 5 (hereinafter, referred to as the present invention 5) is the ground strainer according to claim 1, 2 or 3, wherein the scooping plate 1 is provided with a front upper part at two longitudinally forward ends and a plurality of intermediate locations. A roller 15 or a wheel 18 is rotatably supported between the rear ends of the support plates 11, 11 protruding rearward from the side plates 9, 9 attached to both side surfaces. And a net 1) is provided on the entire upper surface of the strainer.

  With such a configuration, the ground strainer of the fifth aspect of the present invention provides the scooping plate 1 or the flat plate when the string or the pipe is attached to the side plates 9 and 9 and the bicycle, motorcycle, or automobile is pulled at an increased speed. The earth and sand that has jumped up from 2, 3 to 7 is stored in the net, and the pebbles and debris can be sorted out and removed by the vibration during running.

  According to the first aspect of the present invention, when the scooping plate 1 is moved by rubbing against the ground, the earth and sand pushed up on the scooping plate 1 removes pebbles and dust larger than the gap between the flat plates 2 to 7 that are inclined downward and backward. It can be removed by filtration.

  According to the second aspect, as in the first aspect, pebbles and dust can be removed by filtration.

  According to the third aspect of the invention, the pebbles and dirt filtered in the gap between the scooping plate 1 and the flat plates 2 to 7 can be further removed by the net 13 provided on the bottom surface and the rear surface. .

  According to the fourth aspect, when a person pulls the strainer, the wheel 18 and the brush roller 19 rotate, and the earth and sand pushed up on the scooping plate 1 from the front of the scooping plate 1 is immediately turned into flat plates 2 and 3. Since it jumps up from 7, it can be easily pulled and pebbles and dust can be easily filtered out.

According to the fifth aspect of the present invention, when a string or a pipe is attached to both side plates 9 and 9 and the bicycle or motorcycle or a car is pulled at an increased speed, the earth and sand hits the tip of the scooping plate 1 and is placed on the scooping plate 1 or the flat plate 2 to 7. The earth and sand that has been splattered up and scattered can be sorted out by filtering the pebbles and garbage by the vibrations running in the net.

  A gap is provided between the flat plates.

As an example of the embodiment, FIG. 1 shows a perspective view of the present invention 1. A plurality of elongated flat plates 2 to 7 are provided obliquely upward from one end of the elongated rectangular scooping plate 1, and the scooping plates are provided at both end portions on the scooping plate 1 and the flat plates 2 to 7 and at a plurality of intermediate positions thereof. The scooping plate 1 and the flat plates 2 to 7 are arranged in a step-like manner via gap members 10 ... 10 longer than the width of the flat plate 1 and the flat plates 2 to 7.

  The first aspect of the present invention is to attach a gap material 10 having a rear upper surface longer than the width of an elongated rectangular scooping plate 1 inclined downward to both ends of the scooping plate 1 and a plurality of intermediate portions thereof by welding or the like. The flat plate 2 is attached to a portion inclined downward of the upper surface of the gap member 10 protruding rearward from the back by parallel welding with the scooping plate 1. When the flat plates 3 to 7 are fixed stepwise by the above-described method, a gap having a certain thickness of the gap material 10 can be created, and a gap larger than the gap can be removed by filtration. It is stepped toward the rear, but may be mounted stepwise toward the front. Since the gap is formed by the upper rear corner of the scooping plate 1 and the lower front corner of the flat plates 3 to 7, the pebbles and dust that have been filtered and accumulated are hard to be clogged.

In the first aspect of the present invention, the bottom of the scooping plate 1 is rubbed on the ground and moved forward, and the earth and sand rising to the front of the scooping plate 1 is pushed up on the scooping plate 1 and is pushed up from the flat plates 2 to 7. Sediment smaller than the gap between the scooping plate 1 and the flat plate 2 is dropped from the gap, but since the flat plates 2 to 7 are inclined rearward and downward, pebbles and dust remaining after being filtered are collected in the gap without being returned. Will be. As an example of the embodiment, the strainer can be used by attaching the tip of the grip bar 5 to the center of the flat plate 7 and pulling it, or by attaching it to the front and rear of an automobile.

  As an example of the embodiment, the scooping plate 1 is a 3 mm × 32 mm flat bar, the flat plates 2 to 7 are 2 mm × 10 mm flat bars, and the gap member 10 is a 4 mm square bar, and has a total length of 1 m. In this case, small stones of about 5 mm can be removed. The material can be made of metal such as stainless steel, iron and aluminum. In addition, by changing the size of the flat plate material or the gap material, it is possible to filter a material having a required size.

As an example of the embodiment, FIG. 2 is a perspective view of the present invention 2. In place of the gap members 10 ... 10 according to claim 1 , the base plates 8 ... 8 having stepped bottom and rear portions are parallel to each other, and are perpendicular to the scooping plate 1 and the flat plates 2 to 7. And the scooping plate 1 and the flat plates 2 to 7 are arranged in a stepwise manner.

  The shaped plate 8 of the present invention 2 has cuts in the bottom and the rear that are inclined backward and downward at the same length as the width of the flat plates 2 to 7 in a stepwise manner. The flat plates 2 to 7 are attached to the cuts by welding or the like. The scooping plate 1 is horizontally attached to the front bottom of the fixed plate 8, and the gap between the scooping plate 1 and the flat plates 2 to 7 can be made constant. You can do it. By changing the shape of the cuts in the fixed plate 8, gaps of various angles and sizes can be created.

As an example of the embodiment, FIG. 3 is a perspective view of the present invention 3, and FIG. 4 is a cross-sectional view of AA in FIG. The ground filter according to claim 1 or 2 , wherein a net 13 is provided below and behind the scooping plate 1 and the flat plates 2 to 7.

FIG. 3 shows a filter according to the first aspect of the present invention in which the tip of a grip bar 17 is attached to the center of the upper surface of the flat plate 7 and side plates 9 and 9 are provided on both sides. FIG. 4 shows that the nets 13 are attached to the lower and rear portions of the flat plates 2 to 7. In the case of pulling while gripping the ground with the gripping rod 17 of the strainer of the present invention 3, the earth and sand that has risen in front of the scooping plate 1 is pushed up on the scooping plate 1 and is pushed on the flat plates 2, 3, and 4. Accumulate. Then, due to the vibrations rubbing the ground, the earth and sand, pebbles, and dust smaller than the gap are slid on the flat plate surface inclined backward and fall on the net 13 and filtered by the net 13 smaller than the gap between the flat plates 2 to 7. Even relatively small pebbles can be removed. In the case where the earth and sand are excessively accumulated on the flat surface, the gripping bar 17 is set upright to vibrate the entire strainer, thereby removing gaps, pebbles larger than the net 13 and dust. When the net 13 is attached to the ground filter according to the second aspect of the present invention, the same operation and effect can be obtained as described above.

  Before starting the competition, it is customary to rake, so if you walk around the ground or tennis court with the handle 17 of the ground strainer of the present invention 3, you can remove pebbles and dust every time. , You will be able to maintain the ground neatly on a daily basis. In addition, the scooping plate 1 having a short length of about 50 cm can be used as a dust collector, and can be swept with a broom to collect pebbles and dust.

  When using the ground strainer of the present invention 3 for the first time, use a large one with a gap or mesh 13 and gradually replace it with one with a smaller gap or a finer mesh to maintain a smaller ground. Pebbles can be removed. When the soil is dry, it is preferable to use a fine filter having a small mesh with a small gap, and to use a filter with a large gap when the soil contains moisture. In addition, the earth and sand may be clogged in the strainer on the ground with much moisture, but the ground can be leveled using the weight of the earth and sand.

As an embodiment of the present invention 3, when a filter 15 having a roller 15 or a brush attached to a hanging side rotatably provided on both side plates 9, 9 of the present invention 3 is used, After removing pebbles, dust and the like, the ground can be pressed and leveled by the rollers 15. In the case where a brush is attached instead of the roller 15, the sweeping can be performed similarly. Since the above-mentioned strainer can collect pebbles and level the ground at once, the ground can be maintained in a short time.

As an example of the embodiment, FIG. 5 is a perspective view of the present invention 4, and FIG. 6 is a cross-sectional view taken along line BB of FIG. 4. The ground strainer according to claim 1, 2 or 3 , wherein side plates 9, 9 are attached to both sides of the scooping plate 1 and the flat plates 2 to 7, and bearings are provided at front ends of the side plates 9, 9, respectively. A brush roller 19 having wheels 18 attached thereto is rotatably supported.

When the ground surface is continuously pulled by holding the grip bar 17 of the ground strainer of the present invention 4, while rotating the wheels 18, 18, the ground surface is cut while maintaining a certain height so as not to cut the ground too much. Since it is possible to proceed, the raised soil and the like are collected in front of or on the scooping plate 1. Since the wheels 18, 18 and the roller brush 19 are rotating in the direction of the arrow C as shown in FIG. 6, the dirt, pebbles 12, dust and the like collected near the scooping plate 1 are removed by the brush roller 19. It will be flipped up from the flat plates 2 to 7 by the rotational force. Since the brush roller 19 is continuously rotating while being pulled, the work can be performed while adjusting the amount of jumping up and down by changing the angle of the grip bar 17 up and down.

  As an example of the embodiment, the wheel 18 and the brush roller 19 of the present invention 4 are connected, but the wheel 18 and the brush roller 19 are configured to rotate separately, and the engine and the motor are used only for the brush roller 19. In the case where the scooping plate 1 is automatically rotated by being attached, the earth and sand, pebbles, and dust near the scooping plate 1 can be jumped up from the flat plate 2 to 7 by the rotating force of the brush roller 19 without being accumulated.

FIG. 7 shows a perspective view of the present invention 5 as an example of the embodiment. 4. The ground strainer according to claim 1, 2 or 3 , wherein sliding plates 14 projecting forward and upward are provided at both ends and a plurality of intermediate portions in the longitudinal front of the scooping plate 1, and both side plates 9, 9 are attached to both side surfaces. A roller 1 or a wheel 18 is rotatably and axially supported between the rear end portions of the support plates 11 and 11 projecting further rearward, and a net 1) is arranged on the entire upper surface of the strainer. ing.

  As an example of the embodiment, the ground strainer according to the fifth aspect of the present invention attaches a string or a pipe to both side surfaces 9 and 9 and slides on the ground by a sliding plate 14 when the bicycle or motorcycle or a car is pulled at an increased speed. As a result, the earth and sand hitting the tip of the scooping plate 1 are all jumped up onto the flat plates 2 to 7 in the net 13 without jumping out. The collected sediment is sorted out by the moving vibration, and the pebbles and dust are sorted out. The net 13 attached to the outside of the bottom surface can further filter and remove smaller pebbles and dust.

  As an example of the embodiment, the roller 15 has a diameter of 5 cm, a total length of 1 m, a width of 20 cm, a scooping plate having a thickness of 2.7 mm and a width of 32 mm, the flat plates 2 to 7 having a thickness of 2.7 mm and a width of 13 mm, and a net 13 of a filtering device made of stainless steel. Although 3 meshes with a wire diameter of 1.2 mm are used, it is possible to change the roughness of the mesh according to the size of the pebbles when adjusting the ground.

FIG. 2 is a perspective view showing an example of the first embodiment of the present invention. It is a perspective view showing an example of a 2nd embodiment of the present invention. It is a perspective view showing an example of a 3rd embodiment of the present invention. FIG. 4 is a cross-sectional view taken along line AA of FIG. It is a perspective view showing an example of a 4th embodiment of the present invention. FIG. 6 is a cross-sectional view taken along the line BB of FIG. It is a perspective view showing an example of a 5th embodiment of the present invention.

Explanation of reference numerals

1 scooping plate 2 flat plate 3 flat plate 4 flat plate 5 flat plate 6 flat plate 7 flat plate
REFERENCE SIGNS LIST 8 fixed plate 9 side plate 10 gap material 11 support plate 12 pebble 13 net 14 sliding plate 15 roller 17 gripping bar 18 wheel 19 brush roller

Claims (5)

A plurality of elongated flat plates (2... 7) are provided obliquely upward from one end of the elongated rectangular scooping plate (1), and on the scooping plate (1) and the flat plates (2... 7). The scooping plate (1) and the scooping plate (1) and a plurality of intermediate portions of the scooping plate (1) and the gaps (10... 10) longer than the width of the flat plate (2. A ground maintenance tool characterized in that flat plates (2... 7) are arranged in a stepped manner. A scooping plate (1) and a flat plate (8) in parallel with the gap material (10... 10) according to claim 1, wherein a fixed shape plate (8. A ground maintenance tool which is provided at a plurality of positions perpendicularly to 2... 7) and is arranged in a scooping plate (1) and a flat plate (2. A ground maintenance tool according to claim 1 or 2 , wherein a net (13) is provided below and behind the scooping plate (1) and the flat plates (2 ... 7). 4. The ground strainer according to claim 1 , wherein side plates (9, 9) are attached to both sides of the scooping plate (1) and the flat plates (2... 7). A gland maintenance tool characterized in that a bearing is provided at a front end and a brush roller (19) having wheels (18, 18) attached to both ends is rotatably supported on the shaft. 4. The ground strainer according to claim 1, wherein the scooping plate (1) is provided with sliding plates (14) protruding forward and upward at both longitudinally front ends and a plurality of intermediate portions thereof and attached to both side surfaces. Rollers (15) or wheels (18) are rotatably supported between the rear ends of the support plates (11, 11) projecting rearward from the plates (9, 9), and the entire upper surface of the filter A ground maintenance tool, characterized in that a net (13) is provided on the ground.

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