WO1990006048A1 - Weeding metal base plate and weeder - Google Patents

Abstract

This invention relates to a metal base plate for cutting the roots of weed at a predetermined depth under the ground and removing the weed. This weeding metal base plate consists of a metal plate made of a metal such as steel, stainless steel, etc, and projections (3) having front blade (4) at the front edge and having a predetermined width are disposed on the front of said metal base plate with gaps between them. Inner blades (5) are formed at the deep portions between the adjacent projections (3). When a handle (7) is fitted, this weeding metal base plate can be used as a manual weeder and when a handle having heavy wheels is fitted, it can be used as a handcart weeder. Furthermore, when the base plate is fitted to a rotary member, it can be used as a rotation-drive type weeder.

Description

 Specification

 Metal substrate for weeding and weeding tools

 Technical field

 According to the present invention, a plurality of mowing blades provided at a front portion of a metal substrate for weeding are intermittently retracted inward, and a predetermined width is continuously formed inside the mowing blades. Weed rhizomes at a predetermined depth or near the ground, such as by protruding a protruding piece that can prevent a collision with a mold object, or by forming a protruding piece on a warp to prevent the lawn from engaging in roots, etc. The present invention relates to a manual or prime mover for weeding with a mowing blade. Background art

 Conventionally, weeding tools (also referred to as grasses) as shown in Fig. 7 have been mainly used in agricultural lands and gardens except paddy fields. Cutting with a blade.

 For the purpose of hooking the expanded roots in the soil, tearing them off with the help of force, and pulling them out, forked grasses in Figs. 8 and 9 and grasses such as rakes in Fig. 10 have been used.

 However, with the conventional techniques described above, weeding is a very laborious task.

 For example, in the case of flat-blade grass, every time a solid block of earth, pebbles, etc. scattered on the ground hits the blade, it receives an impact without any vertical or vertical direction, and further digs into the soil to escape. Requires a considerable amount of power, and the required power for each floor varies depending on the size of the earth's mass, pebbles, etc., and the way it is, so it cannot be called light work, especially when the land is dry Weeding is extremely troublesome. Therefore, after the rain, the farmer has to remove the grass in the grass so that the soil does not stick to the soil and the soil is wet, and the grass must be weeded out in a hurry. The flat blade is severely damaged.

In addition, in the case of a large turf such as a golf course, It cannot be used because it will cut the roots.

 For this reason, the forked grasses shown in Fig. 8 are used manually, but each time the grass is extracted one by one, it is convenient to remove the grass roots because the rhizome enters the sharp blade inside the protruding piece. Is good, but it takes time to remove it. The bifurcated grass in Fig. 9 improves the inside of the sharp bifurcated grass described above, and since the inside has an extra space in the shape of an arc, it is the same as the previous example that the rhizome that has been bitten is removed. Although it is simple, it has to be pierced one by one into the soil and then lifted and pulled out, so that continuous work is not possible and it is extremely troublesome.

 Furthermore, the rake-type grass shown in Fig. 10 also has no effective cutting blade for cutting the rhizome, and the protruding piece gradually narrows in the direction of the front end, and has an arc shape at the front end. Formed, no effective cutting blade. Therefore, for example, even a soft rhizome has to be driven into the surrounding soil at a predetermined depth, hooked on a protruding piece, and pulled out with force.Therefore, a narrow flowerbed or a large farmland garden that can be used for planting, etc. Etc., and it was impossible to cut soft rhizome weeds mixed in the lawn.

 The above four examples are the existing main weeding tools, but there are few proposals of other weeding tools or mowers that can reduce labor. To reduce labor, harmful defoliants are often and often used in large quantities, especially when sprayed on vast golf courses, causing pollution such as death of wild birds, well water pollution, and harm to humans. Farmers are also wary of the low yield of crops due to their use on agricultural land. Disclosure of the invention

According to the present invention, weeding blades are provided with intermittently provided cutting blades intermittently provided at a front portion of a metal substrate for weeding, which are drawn inward and formed to have a predetermined width continuously and sharply. The desired shape of the protruding piece and the direction of the protruding slightly differ depending on the conditions of the land to be weeded, but in general the protruding piece is also wide and forms a front blade and protrudes forward. . In this case, light The protruding pieces are crushed or rolled to the right or left, crushing or rubbing the clod or pebbles buried or fixed in the upper part of the ground immediately, and do not hit the mowing blade inside, The wedge-shaped action makes it easy to bite into the soil, and the length of the protruding piece makes the depth of bite into the soil almost constant. Cutting by rooting is possible and labor can be saved.

 In sandy ground with pebbles, it is desirable to form the leading edge of the protruding piece firmly with a thick blade to withstand collision with gravel pebbles and to protect the mowing blades in the back.

 The width of the protruding pieces is preferably equal to the width of the front piece, that is, it is preferable that the distance between the protruding pieces is substantially the same in the inner depth direction. At the same time, the roots of the weeds in the inner part can easily fall off, and the continuity of the work can be improved.

 A weeding tool for hand work is realized by providing a handle on the metal substrate for weeding as described above, or a push-pull type weeding tool in which the handle is swingably or slidably attached to heavy wheels. It can be used as a metal substrate for blasting, and enables continuous weeding work without driving. Further, the invention is to provide a weeding tool for attaching the above-mentioned metal substrate for weeding to a rotating body interlocked with a support wheel, and rotating it manually or by a motor. BRIEF DESCRIPTION OF THE FIGURES

 BRIEF DESCRIPTION OF THE DRAWINGS The drawings are preferred examples of the present invention, and are reduced schematic diagrams. FIG. 1 is a manual weeding tool of Example 11; (a) is a plan view of the metal substrate for weeding; Is a cross-section a-—a ', (c) is a cross-section b-—b', and (2) is a perspective view of a weeding tool with a handle mounted on the metal substrate for weeding.

 Figure 2 shows a preferred example of a metal substrate for weeding on uneven terrain. Fig. 3 shows an example of a weeding metal substrate for weeding wheels. (A) is a perspective view, and (mouth) is an enlarged perspective view of section C-C '.

Fig. 4 shows a sliding push-and-pull grass wheel, (a) is a side view, and (mouth) is Plan view.

 Fig. 5 shows a swinging push-pull weeding wheel. (A) is a side view with one part omitted, (mouth) is a front view, and (c) is a rear view.

 Fig. 6 shows a motorized weeding tool with a weeding wheel. (A) is a side view and (mouth) is a plan view.

 FIG. 7 is a plan view of a conventional metal substrate for mowing grass, which is a conventional weeding tool. FIG. 8 is a schematic perspective view of a conventional bifurcated grass.

 FIG. 9 is a schematic perspective view of a conventional improved bifurcated grass.

 Fig. 10 is a schematic perspective view of a conventional rake-type grass.

 1 -—Yeoha tool 2 -—Metal substrate for mowing 3 ™ ^ 4--Front blade

5-mowing blade 6-support piece 7-8--axle 8-1--support 9-heavy wheel 10-"^ control pin 10-1-single spring support 10-2--spring suspension 11-single handle 12--Compression spring 13- -Motor 14-

15-—Grass basket 16-—Regulated pipe 17-—Hulling wheel 18-—Yeo-so 19

23-Rake type grass The best mode for carrying out the invention

 This will be described in more detail with reference to the accompanying drawings in order to explain the present invention in more detail.

 Example 1 [Refer to Fig. 1 (a) Mouth) (A) (2)]

In this example, a weeding tool 1 for manual work, a metal substrate 2 for weeding is made of a stainless steel alloy plate 2 mm thick, and 11 protrusions 3 protrude forward. The front blade 4 is formed upward by grinding the lower front part, and the inner blade 5 that is slightly curved in a predetermined width arch inside the space between each protruding piece is formed downward by grinding the upper surface side. I have. On the back side, a support piece 6 that is inserted into and fixed to the slit of the handle 7 is formed integrally with the metal substrate 2 for weeding, and is inserted into the slit of the handle 7. They are integrally fixed via the pin holes. The above-mentioned weeding tool 1 has a handle, and when the metal substrate 2 for weeding is lightly hammered into the ground at about 30 degrees and pulled toward the front, the front blade, which is the tip of the protruding piece, is sharp, so the back blade is sharp. Easily reach the level of, cut the grass roots in the shallow layer and cut the rhizome between the prongs with the back blade.

 At this time, even if the pebbles are fixed as individual pieces on the ground surface, large stones can be easily moved because they have a force to roll over due to the step between the front blades and the back blade. Hardly touches the back blade when biting.

 Also, solids smaller than between the front blades are lighter in weight and touch in a floating state, so the impact is small and the sharpness of the rear blade is maintained for a long time.

 The above-mentioned supporting piece 6 is a continuous piece of a metal substrate for weeding, which is cut by pressing integrally, but the shape and processing method are not limited to this example.

 Example 1 [Refer to Fig. 2 and Fig. 4 (a) (π)]

 This example is a preferred example of a sliding push-pull weeding wheel. The weeding metal substrate has a front edge formed with a front edge along an arc-shaped curve. Recommended for mowing in uneven areas.

 The metal substrate 2 for weeding is provided at the tip of a long handle 7 as shown in FIG. 4 (a), and a support 8 provided at the center of an axle 8 for rotatably supporting left and right heavy wheels 9 having a predetermined weight. — 1 is integrally fixed, and the handle 7 is rotatably supported in the center and the predetermined section of the handle 7 is slidably supported, and the coil springs 12 on both sides are at the other end. It is fixed at the regulation bin 10.

The weeding implement 1 in this example has the handle 1 1 and lifts it slightly upward and pulls it to the front end of the handle 7 through the support 8 — 1 at the center of the axle 8 under the weight of the heavy wheels 9. The provided weeding metal substrate 2 is pressed against the ground and pulled. At this time, according to the weight of the heavy wheels 9, the front blade and the protruding piece following it are strongly bitten into the ground by the principle of a roller, and if it is pulled further, the rhizome that cannot be cut with the front blade is also a sharp back blade. Cut at The rhizome, which sometimes narrows, can be pushed back by rubbing the protruding pieces against the ground. It can easily fall off because it only penetrates slightly between the pieces. In this way, continuous weeding work is possible by repeating the work of lifting and pulling the handle 11 up and down, sometimes in the reverse direction. Therefore, it is not necessary to swing up with a handle like a flat blade grass, and the waist does not need to be bent and stretched, and the front blade bites into the soil of a certain depth with a light force, so that extra force can be omitted and fatigue is reduced. Less and more efficient work is possible.

 Example 1 3 [Refer to Fig. 5 (a) (0) (re)]

 The metal substrate 2 for weeding in this example has nine protruding pieces and is used for weeding on flat ground. Therefore, the front blade is provided at a substantially straight level. As described above, the length and shape of the protruding pieces are used. Selected according to the application.

 The metal substrate for weeding 2 is provided at the end of a long handle 7 [see Fig. (A)] A panel suspension 10 rotatably provided at the center of an axle 8 rotatably supporting left and right heavy wheels 9 of a predetermined weight 10 — The upper end of 2 is fixed integrally, and the ball joint 30 is connected to the lower part of the support bracket 22 so that the upper end is rotatable inside the compression panel. It is rotatable on the same plane, but the compression panel is slightly shorter than the length when the arrowhead is extended.

 When the rocking weeder pulls while supporting the handle 7 or the grip handle 11, the compression spring is pulled by the heavy wheel and slightly expands, and at the same time tilts, but the ball joint is linearly extended and the heavy wheel becomes hard. According to the principle of a roller, the front blade at the tip easily bites into the soil only by the length of the protruding piece, and the rhizome is cut off as it pulls near the ground.

 Conversely, if you push it back, you will rub the back side of the protruding piece against the ground, so the shoot root narrowed between the protruding pieces will easily fall off. Therefore, similar to the sliding type push-pull weeding machine of the above-mentioned example, continuous weeding can be performed by simple push-pull work, which saves labor and eliminates the need for waist bending and stretching labor.

 Example 1 [Refer to Fig. 3 (a) Fig. 6 (a) (mouth)]

In this example, the two weeding metal substrates 2 provided with the support pieces 6 on the side face the rotating weeding plate 18 fixed to the rotating shaft, and adjust the distance from the axis. The vehicle body 11 is rotatably supported on both sides thereof, and wheels 19 are provided on both outer sides of the outer periphery of the outer periphery of the rotating area of the rotating weeding plate 18 with a predetermined size smaller than the outer circumference of the rotation range. A grass collection bucket 15 is provided between the trunks 11 on both sides so as not to be in contact with the rotating support plate 18 so as to be rotatable in the direction of the arrow. The angle is supported by the regulation pipe 16.

 Wheels 19 are rotatable on both sides of the axle provided in the middle of the vehicle body integrally formed by the regulating pipe 16 and handle 7 on both sides described above, and a prime mover 13 is provided in the center. The rotary weeding board 18 is driven via the belt 14 on the side.

 This weeding tool adjusts the mounting interval of the metal substrate for weeding mounted on the rotating weeding board appropriately, and then drives the rotating weeding board 18 by the motor 13 to support and push the handle 7 to push the farmland. With the selection of rotating speeds, weeds with soft rhizomes in the lawn can be selectively mowing. It is necessary to take into account the seasonal hardness of the lawn leaves, the sharpness of the back blade, and other complex conditions when working on the weeding lands.

 In addition, the grass collection packet 15 can be discarded by rotating when the weeding metal board attached to the rotating weeding board is in the vertical position in FIG. 6 (mouth). It is also preferable to make it detachable.

 The metal substrate for weeding 2 of this example has a front blade formed to be curved, but it is desirable to form the protruding piece further curved and use it when the lawn is soft or elongated. New It would be even more desirable to make the rotating weeding board reversible, giving the prongs the ability to shed rhizomes.

In this example, the rotary drive is driven by the prime mover. However, as in the case of a manual lawn mower, in order to link the support wheel and the rotary weeding wheel to make it manual, it is desirable to reverse the rotation, otherwise mowing is difficult. Become. Industrial applicability

 INDUSTRIAL APPLICABILITY As described above, the weed killer according to the present invention is useful as a labor-saving weed killer for agricultural lands, gardens, and the like, and also as a selective weed killer for weeds with soft foliage on turf dough. It can also be used for mowing dry land, gravel arable land, gardens, etc. It is labor-saving and durable.

 Furthermore, not only weeds, but also agricultural products, such as spinach, can cut short roots.

Claims

The scope of the claims 1. A plurality of mowing blades intermittently provided at the front are formed with a width larger than the size of the stem root to be retracted to the inside and mainly to be cut, and are provided between each mowing blade. A metal substrate for weeding that has a front blade in front of a fixed width protruding piece that can maintain the required strength at the place of use.  2. The weeding gold attribute substrate according to claim 1, wherein the protruding piece is formed to be warped.  3. The weeding tool according to claim 1 or 2, wherein a handle is provided on the metal substrate for weeding.  4. The push-pull type weeding tool according to claim 3, wherein the handle has at least a section required for a push-pull operation and is rotatably supported by a gravity vehicle. 5. The push-pull type weeding tool according to claim 3, wherein the handle is swingably and rotatably supported by a gravity wheel.  6-Claim 1 wherein a plurality of metal substrates for weeding are provided on the outer peripheral portion of the rotating weed body, and the motor is provided on a chassis that rotatably supports the rotating weed body, and the motor is rotated and driven. Or the weeding tool according to paragraph 2.