KR20190033818A - Safety cover for agricultural reeder - Google Patents

Abstract

The present invention relates to an agricultural safety cover. The agricultural safety cover includes: a cover main body formed in a dome shape to cover a weeding blade and having a driving wing unit of the shape of a sled on both ends; and a worktable fixing unit formed to fix a worktable to the cover main body. The worktable fixing unit includes: a base frame fixed to the upper surface of the cover main body and having a lower worktable fixing groove to enclose the lower part of the worktable; a worktable cover plate connected onto the base frame by a hinge and having an upper worktable fixing groove to enclose the upper part of the worktable; and multiple screw coupling units formed to couple the worktable cover plate and the base frame when the worktable is installed between the lower worktable fixing groove and the upper worktable fixing groove on an opposite side of the hinge, wherein the multiple screw coupling units are installed for at least a coupling center shaft to have a different angle from that of the remaining coupling center shafts. The purpose of the present invention is to facilitate separation or replacement of the safety cover from the worktable and minimize deterioration of a coupling force onto the worktable of the safety cover.

Description

{SAFETY COVER FOR AGRICULTURAL REEDER}

The present invention relates to a safety cover for agricultural use which can be safeguarded against rotation or impact of a herbicide and prevent scattering of non-produced matter.

Weeds grow naturally in the rice fields and field groves that have been planted or transplanted. Because weeds absorb vigorous vitality and absorb the nutrients surrounding them, they inhibit the growth of crops, so weeding for the farmers considering the yield has become an important agricultural activity throughout the year.

By the way, it is not easy for a person to remove the weeds of the rice field and the furrow in the agricultural railroad which lacks one hand. Herbicides, which have been used for a long time as a quick and easy herbicide, have helped to increase food production. On the other hand, the widespread use of herbicides resulted in serious adverse effects such as soil contamination, destruction of surrounding ecosystems, and heavy metal poisoning due to residual pesticides. Furthermore, resistant weeds are promoting the overuse of herbicides, and super weeds, which do not die by several times the amount of spray applied in the past, are threatening human and ecosystem.

Chongqing mower is an agricultural machine that directly removes or cuts weeds between rice paddies and furrows during the growth of crops. Chungyeong mackerel has been attracting attention as a herbicide method to overcome the dysfunctions and limitations of herbicides because it feeds air to the soil while cutting and transferring the soil with the cutting of weeds.

Power mowers typically have a herbicide that is rotated at a high speed, the herbicide being supported by a workbench that is a member that transmits power and provides a rotational fulcrum of the herbicide. A safety cover is provided around the herbicide to ensure safety from the herbicide and to prevent scattering of chips, soil or water droplets caused by rotation of the herbicide. The safety cover may vary depending on the application or installation method or form. In addition, the safety cover may be configured as a sled to keep the height of the weed blade against the ground constant. Generally, the safety cover is fixed to the workbench. The vibration or impact of the weed blade can weaken the fastening force to the workbench.

* Related Precedent Literature

Korean Registered Patent No. 10-1407531 (Announced on June 13, 2014)

An object of the present invention is to facilitate separation or replacement of a workbench while minimizing the deterioration of the fastening force of the safety cover to the workbench.

Another object of the present invention is to secure a strong fastening force by making mutually different operating lines between fastening members.

A safety cover for agricultural use according to the present invention comprises a cover body formed in a dome shape so as to cover a herbaceous blade and having a sled-like running wing at both ends thereof; And a work platform fixing part formed on the cover body so as to fix the work platform to the cover body, wherein the work platform fixing part is fixed to the upper surface of the cover body and includes a lower work platform fixing groove for covering the lower part of the work platform; A work table cover plate connected to the base frame by a hinge and having an upper work table fixing groove formed to cover an upper portion of the work table; And at least one clamping center shaft which is formed to be able to clamp the work table cover plate and the base frame in a state where the work table is disposed between the lower work table fixing groove and the upper work table fixing groove on the opposite side of the hinge, And a plurality of screw fastening portions arranged to have an angle different from that of the fastening center axis of the fastening portion.

As an example related to the present invention, the cover main body is formed of a synthetic resin material, and the work platform fixing part may be formed of metal.

In one embodiment of the present invention, the base frame and the worktable cover plate may be formed of aluminum alloy.

As an example related to the present invention, a plurality of first longitudinal protrusions may be formed on the inner surface of the lower workbench fixing groove, and a plurality of second longitudinal protrusions may be formed on the inner surface of the upper workbench fixing groove.

In one embodiment of the present invention, the work table is formed to have a circular cross section, and a gap G1 between the base frame and the work table cover plate at a position where the screw fastening section is positioned before the final fastening of the screw fastening section is formed, A gap G2 between the outer peripheral surface of the work table and the first longitudinal projection, and a gap G3 between the outer peripheral surface of the work table and the second longitudinal projection.

As an example related to the present invention, the cover body may be formed in an 'n' shape in cross section when viewed from the front, and the front of the cover body may be formed to be opened.

As an example related to the present invention, the agricultural safety cover includes a cover which is formed to protrude from both sides of the lower end of the front end of the cover body, and which is provided with a guide for a cutting object and a guide And the like.

In one embodiment of the present invention, the work table cover plate includes: a first cover plate portion connected by the hinge and formed in parallel with an upper surface of the cover body; And a second cover plate portion extending from the first cover plate portion at a predetermined inclination angle and having the upper work table fixing groove formed therein.

According to an embodiment of the present invention, the plurality of screw fastening portions include a pair of first screw fastening portions having a first fastening central axis X1; And a pair of second screw fastening portions spaced apart from the first screw fastening portion and having a second fastening central axis X2 having a predetermined angle alpha with respect to the first fastening central axis X1, .

According to an embodiment of the present invention, the first screw coupling portion may be positioned on the first cover plate portion, and the second screw coupling portion may be positioned on the second cover plate portion.

According to the agricultural safety cover relating to the present invention, at least one of a plurality of screw fastening portions for fastening the work platform cover plate to the base frame in a state where the work platform is disposed between the lower work platform fixing groove and the upper work platform fixing groove on the opposite side of the hinge The engagement center axis is arranged so as to have an angle different from that of the other engagement center axis so that the action line of the force for engagement is complicated and the engagement state of the screw can be minimized by vibration or impact transmitted to the work platform , So that it is possible to maintain a firm fixing force between the work table and the cover body.

As an example related to the present invention, the weight of the base frame and the work table cover plate can be reduced by using the aluminum alloy die casting material, and the deformation due to the action of the screw fastening portion can be utilized.

As another example related to the present invention, in fixing the worktable having a circular cross section, a gap G1 between the base frame and the worktable cover plate at a position where the screw fastening portion is positioned before the final fastening of the screw fastening portion, The gap G2 between the first longitudinal protrusions and the gap G3 between the outer circumferential surface of the worktable and the second longitudinal protrusions is larger than the sum of the gap G3 between the outer circumferential surface of the worktable and the second longitudinal protrusions, .

As another example related to the present invention, a plurality of threaded fastening portions may include a pair of first threaded fastening portions having a first fastening central axis X1 and spaced apart from the first threaded fastening portions, The possibility of loosening the screw fastening portion in the different fastening directions can be minimized by including the pair of second screw fastening portions having the second fastening central axis X2 having the predetermined angle alpha with respect to the central axis X1 .

1 is a perspective view of an agricultural safety cover according to the present invention;
Fig. 2 is a cross-sectional view taken along the line II-II in Fig.
Fig. 3 is a perspective view showing an enlarged view of the main part of the work station fixing part related to the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an agricultural safety cover according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a safety cover for agricultural use according to the present invention. 1, a safety cover 100 for agricultural use according to the present invention includes a cover body 110 formed in a dome shape so as to cover a herbivorous blade 180 and a cover body 110 for fixing the workbench 105 to the cover body 110 (Not shown).

At both ends of the cover body 110, a sled-like running blade 115 may be formed. The running wing 115 allows the height of the weed blade 180 to be kept constant in a state where the weeding blade 180 is mounted and functions as a friction surface with respect to the ground. The running wing portion 115 may be formed in a blade shape so as to reduce the frictional force with respect to the ground and improve the running ability.

The cover body 110 may be formed in an 'n' -shape in cross section when viewed from the front, and may be formed so that the front of the cover body 110 is open. That is, the front end portion 112 of the cover body 110 facilitates the flow of weeds and crops for harvesting in the direction of the weeding blade 180. Guide portions 113 may be formed on both sides of the lower end of the front end portion 112 of the cover body 110 so as to protrude therefrom. The guide portion 113 also provides the impact surface of the fly by the guide of the cutting object or the rotation of the weed blade 180 and increases the structural rigidity of the cover body 110 opened frontward. In addition, a plurality of rib-like portions 117 for reinforcing the cover body 110 may be formed in the running wing portion 115 as well.

A plotter (not shown) is provided on the rear of the cover body 110 to prevent the cover body 110 from digging into the ground surface or increasing the running resistance of the covered object 110, Can be attached.

The worktable 105 may be in the form of a hollow sack, and may be provided with a flexible cable so as to transmit power for rotating the herbivorous blade 180 therein. The work table 105 may be formed in the form of a rigid rod so as to push or change the direction of the cover body 110 on which the weed blade 180 is mounted.

The weed blade 180 is rotated by a flexible cable inside the work table 105 and is formed so as to cut weeds or crops to be harvested. The weed blade 180 may have any shape or type. As an example, the weed blade 180 may be formed to have an 'n' shaped cross section. In this case, the herbicide (180) can be finely cut or crushed to the roots of the weed, thereby remarkably improving the herbicidal effect even in a single operation.

The work platform fixing unit 120 may have a base frame 130 fixed to the upper surface of the cover body 110 and a work platform cover plate 140 connected to the base frame 130 by a hinge 150. The work platform fixing part 120 serves to firmly fix the work platform 105 fixing the weed cutting edge 180 to the cover body 110. It is easy to fasten or separate for the replacement or maintenance of parts Can be designed to do.

The cover main body 110 can be manufactured by injecting synthetic resin having rigidity, and the work platform fixing part 120 can be formed by molding a metal. Specifically, the base frame 130 and the work table cover plate 140 may be made of aluminum alloy by die casting. The material of the work platform fixing part 120 reduces the overall weight of the agricultural safety cover 100, thereby improving the operational convenience. In addition, the work platform fixing part 120 using an aluminum alloy can provide a firm fastening force by fastening a plurality of screw fastening parts to be described later.

FIG. 2 is a sectional view taken along a line II-II in FIG. 1, and FIG. 3 is an enlarged perspective view of a main part of a work platform fixing part according to the present invention.

As shown in these drawings, the base frame 130 includes a lower work table fixing groove 135 so as to cover the lower portion of the work table 105, and the work table cover plate 140 is also mounted on the upper portion of the work table 105 And an upper work table fixing groove 146 so as to cover the upper work table fixing groove 146.

The base frame 130 and the work table cover plate 140 are fastened by a plurality of screw fastening portions. The plurality of screw fastening portions are fixed to the work table cover plate 140 and the base frame 130 in a state where the work table 105 is disposed between the lower work table fixing groove 135 and the upper work table fixing groove 146 on the opposite side of the hinge 150. [ And at least one of the fastening central axes may be arranged to have an angle different from that of the other fastening central axes. Such a screw fastening part complicates the action line of the force for fastening, so that the fastening state of the screw can be minimized even by vibration or impact transmitted to the work table 105, 110 can be maintained.

A plurality of first longitudinal protrusions 136 may be formed on the inner surface of the lower table fixing groove 135 and a plurality of first longitudinal protrusions 146 may be formed on the inner surface of the upper table fixing groove 146 . The work table 105 may be formed to have a circular cross section. 2, the gap G1 between the base frame 130 and the work table cover plate 140 at the position where the screw fastening portion is positioned before the final fastening of the screw fastener portion is set to be smaller than the gap G1 between the outer peripheral surface of the work table 105 and the first The gap G2 between the direction projection portions 136 and the gap G3 between the outer surface of the work table 105 and the first longitudinal projection portion 146 can be formed larger than the sum of the gap G2 between the direction projection portions 136, Thereby, a stable fastening force can be ensured against the twisting of the work table 105 with respect to the cover main body 110.

3, the work table cover plate 140 includes a first cover plate 141 connected by a hinge 150 and formed in parallel with the upper surface of the cover body 110, And a second cover plate portion 142 having an upper work table fixing groove 146 formed therein.

The plurality of screw fastening portions include a pair of first screw fastening portions 161 and 162 having a first fastening central axis X1 and a pair of first fastening portions 161 and 162 spaced apart from the first screw fastening portions 161 and 162 And second screw fastening portions 163 and 164. The second fastening central axis X2 of the second screw fastening portions 163 and 164 may have a certain angle alpha with respect to the first fastening central axis X1. The first screw coupling portions 161 and 162 may be located at the first cover plate portion 141 and the second screw coupling portions 163 and 164 may be positioned at the second cover plate portion 142. Accordingly, it is possible to minimize the possibility of loosening the screw fastening portion in accordance with different fastening directions.

The agricultural safety cover described above is not limitedly applied to the construction and method of the illustrated embodiments. The embodiments may be configured so that all or some of the embodiments may be selectively combined so that various modifications may be made.

100: agricultural safety cover 105: worktable
110: cover body 112: front end
113: guide portion 115: running wing portion
120: work platform fixing part 130: base frame
135: lower work bench fixing groove 136: first vertical projection
140: work table cover plate 141: first cover plate part
142: second cover plate 145: upper work table fixing groove
146: second longitudinal protrusion 150: hinge
161: first bolt 162: first nut
163: second bolt 164: second nut
180: weed blade X1: first fastening center shaft
X2: Second fastening center axis

Claims (10)

A cover body formed in a dome shape so as to cover the herbaceous blade and having sleigh-shaped running wings at both ends thereof; And
And a work platform fixing part formed to be able to fix the work platform to the cover body,
A base frame fixed to an upper surface of the cover body and having a lower work table fixing groove formed to cover a lower portion of the work table;
A work table cover plate connected to the base frame by a hinge and having an upper work table fixing groove formed to cover an upper portion of the work table; And
Wherein the work table cover plate and the base frame are fastened to each other with the work table disposed between the lower work table fixing groove and the upper work table fixing groove on the opposite side of the hinge, And a plurality of screw fastening portions arranged to have an angle different from the fastening central axis.
The method according to claim 1,
Wherein the cover body is formed by a synthetic resin material, and the work table fixing portion is formed by a metal.
3. The method of claim 2,
Wherein the base frame and the worktable cover plate are formed by an aluminum alloy.
The method according to claim 1,
A plurality of first longitudinal projections are formed on an inner surface of the lower workbench fixing groove,
And a plurality of second longitudinal projections are formed on an inner surface of the upper work table fixing groove.
5. The method of claim 4,
The work table is formed to have a circular cross section,
A gap G1 between the base frame and the work table cover plate at a position where the screw fastening portion is positioned before the final fastening of the screw fastener is formed by a gap G2 between the outer peripheral surface of the work table and the first longitudinal projection, And a gap (G3) between the outer peripheral surface of the work table and the second longitudinal projection.
The method according to claim 1,
The cover body is formed in an 'n' shape in cross section when viewed from the front,
And a front portion of the cover body is configured to be opened.
The method according to claim 6,
Further comprising guide portions formed on both sides of lower ends of the front end portion of the cover body to provide a guide of the cutting object and a collision surface of the flywheel by the rotation of the herbicide.
The method according to claim 1,
The work table cover plate
A first cover plate portion connected by the hinge and formed in parallel with an upper surface of the cover body; And
And a second cover plate portion extending from the first cover plate portion at a predetermined inclination angle and having the upper work table fixing groove formed therein.
9. The method of claim 8,
Wherein the plurality of screw-
A pair of first screw fastening portions having a first fastening central axis X1; And
And a pair of second screw fastening portions spaced apart from the first screw fastening portion and having a second fastening central axis X2 having a predetermined angle alpha with respect to the first fastening central axis X1 , Agricultural safety cover.
9. The method of claim 8,
Wherein the first screw fastening portion is located at the first cover plate portion,
And the second screw fastening portion is located in the second lid plate portion.

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