JP5115896B1 - Weeding sickle - Google Patents

Abstract

[PROBLEMS] When weeding a field or garden, a conventional weeding sickle only digs up the root of the grass, it is necessary to collect the grass by hand, the recovery is cumbersome, the soil and sand that has reached the root Provide a weeding sickle that has become dirty but is easy to collect and hands are not dirty.
At the same time as digging up a grass root with a root cutting blade 4, the grass is collected with a collection blade 5, collected in a collection box 3, and earth and sand attached to the grass root are screened off with a mesh portion.
[Selection] Figure 1

Description

      In this invention, when weeding a field or a garden, a conventional weeding sickle only digs up the root of the grass, it is necessary to collect the grass by hand, the recovery is cumbersome, the soil with sand attached to the root There was a flaw to get dirty. This plan was devised to solve this problem. At the same time as digging up the roots of the grass with a root cutting blade, the grass was recovered with a recovery blade, collected in a recovery box and simultaneously sifted the sand that had reached the root of the grass with a mesh part. There is something about weeding sickle.

      The conventional “weeding sickle” shown in the following document only digs up the root of the grass, and the grass must be collected by hand.

JP-A-10-000009

    The present invention has been made in view of the above circumstances, digging the root of the grass with a root cutting blade, and simultaneously collecting the grass with a recovery blade, dropping it into the recovery box, and attaching to the root with a net-like portion provided on the bottom surface of the recovery box A series of operations to remove the soil that has been removed by sieving can be processed with a single weeding sickle.

(1) Devising a structure for digging up grass roots and collecting grass at the same time.
(2) Devising a collection box to secure a certain amount of collected grass.
(3) Devising a method for removing soil adhering to the collected grass roots.
(4) The root cutting blade is designed so that it does not penetrate deeper than necessary.

(1) The root cutting blade and the recovery blade have a two-stage upper and lower structure, the gripping bar is held horizontally, the grass roots are dug up when pulled, and the root of the grass is scooped and recovered at the same time with the recovery blade.
(2) The collected grass was secured as a triangular collection box that fell along the slope.
(3) The earth and sand that arrived at the root of the grass has a structure in which the bottom of the collection box is meshed and the earth and sand are screened off by operating vibration of the weeding sickle.
(4) The tip of the root cutting blade was cut upward and the recovery blade was cut downward so that the root cutting blade was not deeper than necessary.

By the above solution, the following points are greatly improved as compared with the conventional product.
(1) The grass was dug up and the grass was collected at the same time, eliminating the need for manual grass collection.
(2) The collected grass was placed in a triangular collection box to secure a sufficient capacity.
(3) A mesh that sifts away the soil adhering to the collected grass roots is provided and removed.
(4) Even when the gripping rod is pulled substantially horizontally, the root cutting edge tip is cut upward, so that the digging depth can be maintained at an appropriate depth.

Overall perspective view of this plan Side sectional view of this plan (A-O-O-B cross section in Fig. 1) Working principle explanatory diagram of this plan Second example of this plan

Hereinafter, the structure and operation of the present plan will be described with reference to FIGS.
FIG. 1 is an overall perspective view of the present plan. Three recovery boxes are connected by spot welding inside two arm members that rise from both ends in the width direction of the four root cutting blades, and further one arm at an angle θ1 on the extended arm member. Are combined. For details, refer to FIG. 2 (AOOB cross section of FIG. 1).
The tip of the two-arm member is formed in a wedge shape, fitted to the left end of one grip rod through a 1d cap, fixed with a 1c arm member caulking rod, and further, the 1b string used when storing the weeding sickle on the right end A hole is provided, and a plurality of 1a non-slip grooves are formed on the outer periphery. The material of one grip bar may be plastic or wood.
The other end of the two arm members is directly connected to the four root cutting blades, the front tip of the four root cutting blades is inclined and cut from the bottom to the top, and the front tip of the five recovery blades is inclined and cut from the top to the bottom. Has been.
In addition, it is preferable to use stainless steel or hardened steel as the material of the double-edged blade.
The positional relationship between the four root cutting blades and the five recovery blades is as shown in Fig. 2. Both blades are parallel to the horizontal direction and have a gap of L1 in the vertical direction. Projects forward.
The collection box is inclined from the position where the length L3 is extended to the left from 5 collection blade edges, and the bottom surface of the box 8 is inclined toward the lower left at an angle of θ2, and 9 openings are provided on the inner side except the outer periphery to close the openings. In the form, 10 mesh members are joined from below to form 6 mesh portions. Instead of using this 10 mesh member, 9 openings can be provided by pressing many long grooves or holes to serve as a mesh, and the 10 mesh member can be dispensed with. Interpret.
On the outer periphery of the 6 mesh portions, the outer wall of 7 boxes surrounds the three sides except for the width direction of the 5 recovery blades, and the upper surface positions are the same.
Next, a second embodiment of the present plan will be described with reference to FIG. The difference from the first embodiment of FIG. 1 is that the functional position is not changed only by the attachment position of one grip bar.
In the first embodiment, one grip bar is fixed immediately above the right two arm member, but in the second embodiment, the two arm members that rise from both ends in the width direction of the four root cutting blades are arranged at the center of the width of the four root cutting blades. A handful of sticks are attached,
In terms of ease of use, the first embodiment is used while a rotational moment is generated by the load applied to the four root cutting edges during operation, and the tip of one grip rod is pressed to the right side. The rotational moment is cancelled, making it easy to use.
However, the disadvantage that the grassy position is blind with a handful of sticks is inevitable.

From the above description of the structure, the operation principle and the handling method will be described. Refer to FIG. 3 for an explanation of operation.
If you hold a handful of bars roughly horizontally and pull it forward on the right side, the four root cutting blades will advance to the right on the excavation surface below the ground, and will advance under the grass roots and lift the earth and sand by L3, so that the solidified ground is on the left side. The root of the grass floats on the ground surface, and 5 recovery blades scoop up the root of the grass, and it is fed into the 3 recovery box together with a small amount of earth and sand, and when it comes to the 6 nets, it adheres to the root of the grass. Sediment falls from the mesh onto the excavated soil, especially when pulling a handful of rods, excavation vibrations occur and is convenient for sieving the sediment from the mesh.
We think that the inclination angle θ1 of one gripping rod is 30 to 50 degrees.
The gap between 4 root cutting blades and 5 recovery blades varies depending on the size and type of grass, but L1 is considered to be about 15 to 35 mm. And for 4 root cutting blades, the front / rear difference L2 of 5 recovery blades is considered to be about 15-40mm. 3 Inclination angle θ2 ≧ θ1 at the bottom of 8 boxes of collection box,
Larger θ2 is more advantageous, but it is the range where the tip of the bottom of the box does not hit the excavated soil surface.
Of course, if the length of the collection box is reduced, the angle θ2 can be increased, but this is a trade-off with a reduction in the volume of the collection box.
Next, the longer the length of the handle, including the length of one handlebar, the easier it will be to use because the effect of rotational moment is less, but if there is no problem with the storage space, about 200 to 300 mm is considered appropriate.
Also, the usability of the first and second embodiments is by far the advantage of the second embodiment when you want to reduce the handle length. In terms of cost, the first embodiment is considered more advantageous.

Weeds in gardens and fields grow quickly, whether they take seeds sooner or later when it rains.
It is troublesome to feel that comes, but other than that, do not take from the grass roots,
If you cut only the leaves on the top, it will grow particularly fast.
Use the “Weeding sickle” in this proposal to take measures against such a cause,
Would you like to be able to collect uprooted grass without using your hands just by pulling the grip bar?
If mass-produced, it can be produced cost-effectively and without a heavy burden.
We are proud that the invention will be appreciated by producers.

1 grip rod, 1a non-slip groove, 1b string hole, 1c arm member caulking rod, 1d cap, 2 arm member, 3 collection box, 4 root cutting blade, 5 collection blade, 6 mesh part, 7 box outer wall, 8 box Bottom, 9 openings, 10 mesh members, 11 cuts, vertical gap between L1 blade edges, horizontal position difference between L2 blade edges, inclination angle of θ1 grip bar, inclination angle of θ2 box bottom face, θ2 ≧ θ1 angle

Claims (4)

It is composed of a gripping rod, an arm member, a collection box, and a root cutting blade, and the collection box is composed of a collection blade, a mesh-like portion, and a box outer wall that surrounds the outer periphery of three sides surrounding the mesh-like portion excluding the collection blade direction, The root cutting blade and the recovery blade are parallel and have a constant gap L1 in the vertical direction, the root cutting blade projects a fixed dimension L2 in front of the recovery blade in the horizontal direction, and the root cutting blade and the recovery blade are the grip bars A weeding sickle characterized in that the gripping rod is attached by the arm member at the center of the width direction of the root cutting blade or in the upper part of either side of the left or right side.
In the weeding sickle according to claim 1,
The recovery blade, the mowing Ri sickle, characterized in that it is coupled fixed in welding or tack between outside of the inner and the box outer wall of the arm member extending upward from both widthwise side surfaces of the root cutting blade.
In the weeding sickle according to any one of claims 1 and 2,
The bottom surface of the recovery box is integrally configured continuously with the recovery blade, is inclined downward at a constant angle θ2 from the rear of the recovery blade, and an opening is provided on the inner surface excluding the outer periphery of the bottom surface of the box. A mesh member that closes a portion is attached to form the mesh portion, the outer wall of the bottom surface of the box excluding the direction of the recovery blade is surrounded by a certain height, and the recovery box is formed. Weeding sickle. In the weeding sickle according to any one of claims 1 to 3,
The weeding sickle characterized in that the tip of the root cutting blade is cut to incline from the lower surface toward the upper surface, and the tip of the recovery blade is cut to incline from the upper surface to the lower surface.