JP6210379B2 - Paddy weeder - Google Patents

Description

The present invention is in the technical field of a weeding machine and a grooving machine between streaks of crops such as rice seedlings of paddy fields.

Conventionally, after planting rice seedlings in paddy fields, weeding of weeds around the seedlings will be carried out about three times, early, middle and late weeding, and also in order to be able to manage the water in the field well There is a grooving work between the streaks, but as this type of device, as shown in, for example, Japanese Patent Publication No. 2008-99575, when weeding the weeds around the seedling, the resistance due to grounding is placed in front of the walking frame. Work with a weeding device equipped with a stirring blade for weeding that rotates in response to force, and when grooving work, remove the weeding device and install a grooving device behind the traveling frame. There is a paddy weeder / grooving machine.

However, in the case of this conventional paddy weeder and grooving machine, it is necessary to attach the weeding device and the grooving device to the traveling frame body during each work, and in the weeding device to be mounted in front of the traveling frame body, Weeding with a weeding blade for weeding that automatically rotates in response to resistance from grounding, is insufficient for mid- and late-stage weeding where rice plants grow and the field ground hardens.

In the paddy field weeding, especially during the mid- and late-stage weeding operations where rice plants grow and weeds grow and the field ground hardens and weeding is difficult, we perform weeding at the same time while weeding rice plants and between plants. An object of the present invention is to provide a device that can also perform grooving operations.

In the present invention, a plurality of weeding devices are arranged in parallel with respect to the traveling direction in a lateral direction of a frame that is horizontally connected to the traveling frame body, and the front end of the weeding device is higher than the ground contact bottom. The left and right side plate portions installed on the rear side of the weeding device and below the grounding bottom surface are formed so that the height dimension becomes shorter toward the front, and the lower end of the side plate portion The front part is joined and has a substantially V-shape when viewed from the back, along the protruding plate part that protrudes outward from the upper end part of the side plate part and forms an eight-shape outwardly symmetrically toward the rear. The paddy field weeding is characterized in that the elastic stapling material made of a rectangular rubber strip with the fold-fold fold outward is arranged so that the outer rear ends of the elastic band members of the adjacent weeding devices are in contact with each other. Machine.

In the present invention, as described above, a plurality of weeding devices are arranged in parallel with respect to the traveling direction in the lateral direction of the frame that is horizontally connected to the traveling frame body, and the front end of the weeding device is grounded at the front end in the traveling direction. By slanting so that it is higher than the bottom, it is possible to move forward while pushing down the weeds between the rice paddies in the rice field. The rear side of the weeding device is a groove with a roughly V-shaped side plate when viewed from the back. It becomes like a cutting edge, and when the rice plant grows and weeds grow and harden, it is stabbed into the ground of the middle and late weeds, held at a predetermined depth in the soil, and advanced to a predetermined depth in the interstitial soil. While forming the groove, the soil lifted upward along the side plate portion was restrained and pushed down by the rectangular elastic band material set on the overhang plate portion with the fold-fold fold outward. A state where the weeds were covered with soil and the fields between the streaks were cultivated The elastic band members are arranged so that the outer rear ends of the folds of the adjacent elastic band members of the weeding device are in contact with each other, so that the curved elastic band members advance forward so as to wrap the rice plant stock from both sides of the rice lines. The weeds between the strains can be weeded without damaging the rice strains.

As mentioned above, during the mid- and late-stage weeding operations in which rice fields grow and the field ground is hardened, weeding between the streaks and between the streaks is easy, and at the same time, grooving between the streaks Therefore, it is possible to improve work efficiency and reduce the labor burden on workers, especially in agricultural chemical-free or reduced agricultural chemical farming methods.

It is a top view of the paddy weeder according to the embodiment of the present invention. It is a side view of the paddy weeder according to the embodiment of the present invention. It is a side view of a weeding device. It is a front view of a weeding device. It is a rear view of a weeding device. It is a top view of a weeding device. It is a bottom view of a weeding device.

1 to 7 show an embodiment of the present invention.

As shown in FIGS. 1 and 2, the paddy weeder 1 of the present invention is configured such that the mounting hitch 10 of the frame 2 reinforced by the reinforcing members 13 and 14 is attached to the traveling frame 15 by bolts 16. Are connected so as to be horizontal to the left and right, and a support arm 8 provided with an auxiliary material 9 is provided in the lateral direction of the frame 2 and provided with an auxiliary material 9. The attached weeding device 3 is arranged in parallel with respect to the traveling direction (arrow A direction).

As shown in FIGS. 3 to 7, the weeding device 3 is slanted so that the front end 3 a in the traveling direction is higher than the ground bottom surface 3 b, and the weeding device 3 is arranged behind the ground bottom surface 3 b behind the weeding device. The left and right side plate portions 4 installed below are formed such that the height dimension is shortened toward the front, the front is joined from the point C at the lower end of the left and right side plate portions 4, and the rear surface of the weeding device 3. The projecting plate portion 5a projecting outward from the upper end portion of the side plate portion 4 is installed on the ground bottom surface 3b with bolts 7, and the projecting plate portion 5b is symmetrical leftward and rearward. The elastic band material 6 made of a rectangular rubber band plate folded in half along the projecting plate portion 5b is installed with bolts 7 with the bent fold side facing outward. ing.

Further, as shown in FIG. 1, the plurality of weeding devices 3 arranged in parallel in the lateral direction of the frame 2 are arranged so that the outer rear ends B of the elastic band members 6 of the adjacent weeding devices 3 are in contact with each other. However, the side plate portion 4 and the elastic band member 6 of the weeding device 3 disposed at both ends of the frame 2 are installed only on the side where the adjacent elastic band member rear ends B overlap each other.

The present invention is not limited to the above-described embodiment, and is attached so as to be applicable to, for example, a structure that is pulled by a hand-held / self-propelled working machine, a walking or riding rice transplanter, etc. The structure, form, and the like of the bracket 10 for use are designed with appropriate changes.

DESCRIPTION OF SYMBOLS 1 Weeder 2 Frame 3 Weeding device 3a Weeding machine tip 3b Grounding bottom 4 Side plate part 5a, 5b Overhang plate part 6 Elastic band material 7 Bolt 8 Support arm 9 Auxiliary material 10 Mounting hitch 11 L-shaped metal fitting 12 Bolt 13 Reinforcement material 14 Reinforcement Material 15 Traveling frame body frame 16 Bolt B Elastic band material rear end

Claims (1)

A plurality of weeding devices are arranged in parallel to the traveling direction with a predetermined interval in the lateral direction of the frame horizontally connected to the traveling frame body, and the front of the weeding device has a tip in the traveling direction from the ground bottom surface. The left and right side plates installed at the rear of the weeding device and below the ground bottom surface are formed so that the height dimension becomes shorter toward the front of the weeding device. The front side of the lower side part of the side plate part is joined and has a substantially V-shape when viewed from the back side, and protrudes outward from the upper side part of the side plate part and symmetrically toward the rear side. An elastic band made of a rubber band with a rectangular shape with a fold-fold crease on the outside is installed along the overhanging plate part so that the outer rear ends of the elastic band members of adjacent weeding devices are in contact with each other. Paddy field weeding machine, characterized by the arrangement.

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