JPH0368641B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a weed extractor for golf courses and the like.

BACKGROUND ART The present applicant previously proposed a weeding machine in Japanese Patent Application Laid-open No. 144035/1983, which is capable of mechanically weeding the weeds that had previously been done manually. This weeding machine has a weeding rotary cylinder and a gripping roll that rotates following the rotation of the weeding rotational cylinder, rotates the weeding rotational cylinder to capture the upper part of the weeds, and pulls out the weeds in cooperation with the gripping roll. This is how it was done. The above-mentioned weeding machine pulls out weeds at the point of contact between the weeding rotary cylinder and the gripping roll, so the weeding rotary cylinder has a large diameter and the contact point is structurally higher than the ground surface, so small weeds are pulled out. Since the upper part of the grass that has been taken in is pulled, there is a risk that the grass cannot be pulled out from the root and will be cut in the middle, and there is also a drawback that the grass that has been taken out gets tangled with the gripping roll.

In addition, an idler wheel is placed near the ground, and a drive wheel is placed diagonally above and behind this position via a horizontal shaft, and between these wheel bodies a lower endless strip is slanted so that its upper side is an upward tension path. The guiding wheel is placed on the upward tension path of the lower endless band member or on the extended surface thereof, and
A starting wheel is mounted on a horizontal axis at a position below and in front of the guide wheel and away from the ground, and between these two wheel bodies, an upper endless band is placed between which the inclined upper side becomes a downward tension path and the lower side thereof. The material is suspended warmly so as to form a hanging part that creeps on the ground, and a transfer path is formed between the upward tension path of the lower endless band and the upward relaxation path of the upper endless band. Japanese Patent Publication No. 54-13368 proposes a device for raising and transporting crops placed on the ground over a wide area. The upper endless strip simply hangs down and contacts the lower endless strip, and there is simply a horizontal bar between the left and right endless strips of the lower endless strip. Since it is only an elevated structure, it is possible to move crops placed on the ground upwards, but it does not have enough clamping force and tensile force to pull out grass growing from the ground.

Problems to be Solved by the Invention The first object of the present invention is to eliminate the above-mentioned drawbacks and bring the weeds in and pull out position closer to the ground surface, thereby making it possible to pull out even short grass. To provide a weeding machine which increases the force of application, increases the number of contact surfaces, allows the pulling force to continue for a longer time, and moreover, is applied strongly to the grass, and eliminates the entanglement of the pulled grass.

In addition to the first object, the second object of the present invention is to remove the roots of weeds by providing movable cutting blades for aligning and tying the grass and cutting around the roots before pulling the weeds. The purpose is to provide a weeding machine that can pull out the weeds completely.

Means for Solving the Problems In order to achieve the above-mentioned first object, the weeding machine of the present invention includes a machine body configured to be able to move on the ground, and a first wrapped conductor attached to the machine body. A weeding device provided with grass-catching rods at required intervals, a drive device for driving the first wrapped conductor, and a second wrapped conductor that contacts the weeding device attached to the machine body. a gripping device that rotatably winds the first wrapped conductor and the second wrapped conductor between a plurality of rotating bodies, and The lowest one of the rotating bodies to support and the lowest one of the rotating bodies to support the second wrapped conductor are placed close to the ground surface and facing each other, and the grass-catching rod is It has a structure characterized in that a friction body is attached to the surface thereof, between the lowermost rotary bodies, the friction body is pressed against the second wrapped conductor.

In addition to the above-mentioned configuration, in order to achieve the second object, the cutting blades are arranged in a comb-like shape on the weed-taking rod of the weeding device, so that the top of the cutting blades is fixed when the weed-taking rod moves linearly. It is located inward from the top of the grass-catching rod, and is attached so that it protrudes outward from the top of the grass-catching rod during curved movement.

Function The grass intake rod and the second winding transmission body pinch the grass from near the root, and the opposing rotating body at the bottom presses the winding conductor from the side to sandwich the grass and rotate it. The grass is pulled upward by the rotation of the wrapped conductor as the body rotates.

At this time, the friction body of the grass capture rod prevents the grass from slipping.

In addition, in the second invention, when the grass-catching rod moves in a curved line while changing from a downward linear movement to an upward linear movement, the cutting blade protrudes outward from the top of the grass-catching stick, and the clipped grass roots are removed. Cut around.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a schematic cross-sectional view of a weeding machine according to the present invention, and reference numeral 1 indicates a machine body that is supported by running rollers 2 and 3 and can run on the ground. The running roller 3 is a support arm 2 which is pivotally connected to the machine body 1 by a shaft 21.
The support arm 2 is rotatably attached to the end of the support arm 2.
2 is attached to the fuselage 1 by a fixing screw 24 inserted into an arcuate groove 23 centered on the shaft 21 provided in the fuselage 1.
By loosening this fixing screw 24, the traveling roller 3 can be moved up and down with respect to the machine body 1. The machine body 1 is provided with a weeding device 4, a gripping device 5, and a storage box 6 for storing weeds. Further, the machine body 1 is provided with a transmission device (not shown) such as a belt, chain, or gear, and when the machine body 1 runs, the rotation of the running roller 2 is transmitted to the weeding device 4 via the transmission device. It will be done. The weeding device 4 is driven by the running roller 2 to take in the upper part of the weeds, and cooperates with the gripping device 5 to pull out the weeds.

The weeding device 4 is attached to the fuselage 1 as shown in FIG.
A rotating body consisting of a chain gear 11 is provided at both ends of the shaft 10, and a chain 12 serving as a first winding transmission body is hung between the chain gears 11. , grass intake rods 13 are installed between the chains 12 at a required interval.
As shown in FIG. 3, the grass intake rod 13 is made up of a friction body 15 made of rubber or synthetic resin having appropriate elasticity and friction and attached to the outer surface of a shaft 14 having flat plate-like attachment portions 25 formed at both ends. . The friction body 1
Reference numeral 5 has a cylindrical shape, and a large number of protrusions extending in the longitudinal direction are formed on its outer surface. The grass intake rod 13 is attached to the chain 12 at its flat attachment portions 25 at both ends.

As shown in FIG. 2, the gripping device 5 includes a rotary body consisting of two or more rollers 16 rotatably attached to the machine body 1, and a second rotary body that is wound between the rollers 16.
The flat belt 17 is arranged to rotate in contact with and follow the rotation of the friction body 15. The flat belt 17 is
Like the friction body 15, it is made of rubber, synthetic resin, strong cloth, or the like having appropriate elasticity and friction.

The weeding device 4 and the gripping device 5 are disposed on the machine body 1 so that the lowermost chain gear 11 and the roller 16 face each other close to the ground surface, and the weeding device 4 and the gripping device 5 are arranged in the machine body 1 so that the lowermost chain gear 11 and the roller 16 face each other close to the ground surface. In, friction body 1
5 is pressed against the outer surface of the flat belt 17.

Among the two or more rollers 16 of the gripping device 5, the lowest roller 16 is rotatably attached to one end of a support rod 27 which is rotatably attached to the body 1 by a shaft 26. A compression spring 32 is inserted between the spring receiver 30 at one end of the adjusting screw 29 screwed into the mounting portion 28 and a stopper 31 at the intermediate portion. Therefore, when the head 33 of the adjusting screw 29 is rotated, the adjusting screw 29 moves forward and backward with respect to the aircraft body 1, and the adjusting screw 29 moves forward and backward with respect to the fuselage 1.
The support rod 27, which is pressed by a compression spring 32 against the stopper 31 of 9, rotates around the shaft 26 to change the distance between the roller 16 and the grass intake rod 13.
The contact pressure between the flat belt 17 and the grass intake rod 13 can be changed.

Next, the operation will be explained. When the aircraft 1 is towed by human power or a powered vehicle, the traveling rollers 2
The chain gear 11 rotates due to the rotational force. chain gear 1
1 rotates the mandrel 14 attached to the chain 12, and the friction body 15 on the mandrel 14 takes in the grass.
The grass is pulled out in cooperation with the flat belt 17 of the gripping device 5. The removed grass is placed between the friction body 15 and the flat belt 1.
It is moved upward while being held between the two, and when the two are separated, it is conveyed on the flat belt 17 and dropped into the storage box 6.

At this time, if a large amount of grass, twigs, pebbles, etc. are caught between the friction body 15 and the flat belt 17, the roller 1
The support rod 27 of No. 6 rotates counterclockwise in FIG. 2 about the shaft 26 against the pressure of the compression spring 32, and separates the roller 16 from the grass intake rod 13, thereby separating the grass intake rod 13 and the flat belt. Make sure that no excessive force is applied between the

In this embodiment, the chain gear 11 of the weeding device 4 was driven by the rotational force of the traveling roller 2, but an appropriate prime mover was placed on the machine body 1, and the chain gear 11 was rotated by the prime mover. Alternatively, the roller 2 may be
The fuselage 1 may be self-propelled by driving.

Further, the weeding device 4 is driven by a plurality of chain gears 1.
1, the chain gear 1 on the upper part of the flat belt 17 side
1 is preferably used as a drive wheel, and this chain gear 11 and the upper roller 16 closest to the weeding device 4 among the rollers 16 of the flat belt 17 may be connected by a transmission device such as a gear or a belt. , weeding device 4
Rollers are provided facing each other between the upper and lower chain gears 11 near the gripping device 5 in the gripping device 5 and between the upper and lower rollers 16 near the weeding device 4 in the gripping device 5. You can also make it stronger.

4 and 5 show a second embodiment of the weeding machine according to the present invention, and the structure of the parts not shown in FIGS. 4 and 5 is shown in FIGS. 1 to 3. The configuration is the same as that of the weeding machine shown.

Reference numeral 20 denotes a substantially triangular cutting blade, the bottom of which is attached to the mandrel 14 of the weeding device 4 and arranged in parallel in a comb-like shape. Located inward from the top, chain 1
2 is provided so as to protrude outward from the top of the friction body 15 during curved movement when it engages with the chain gear 11.

That is, as shown in FIG. 4, the attachment piece 35 provided at the bottom of the cutting blade 20 is placed on the chain 12, the flat attachment part 25 of the mandrel 14 is placed on top of the attachment piece 35, and a washer is placed on the back side of the chain 12. 34 and screw them together.

Note that, as shown in FIG.
5 and the bottom mounting piece 35 of the cutting blade 20 may be sequentially stacked and bolted together.

Next, its operation will be explained. The shaft 14 is placed around the lowest chain gear 11 in the weeding device 4.
When the mandrel 14 passes, that is, when the mandrel 14 changes from a linear motion to a curved motion, the tops 20a of the cutting blades arranged in a comb-like shape on one side of the mandrel 14 protrude in the distal direction as the mandrel 14 moves in a curved direction. The friction body 15 protrudes outward from the top of the friction body 15 attached to the mandrel 14. This protruding cutting blade 20 aligns and bundles the grass before pulling it out, and then cuts around the grass roots in the soil.
When the mandrel 14 passes around the lowermost chain gear 11 and enters linear motion again, that is, the friction body 1
5 begins to contact the flat belt 17, the cutting edge 2
0 goes inward from the friction body 15. Therefore, when the friction body 15 takes in grass and cooperates with the gripping device 5 to pull out the grass, the cutting blade does not perform any function.

Effects of the Invention As described above, in the first weeding machine of the present invention, the first weeding machine and the second weeding machine are operated by the two lowermost rotating bodies facing each other around which the wrapped conductors are wound. The wrapped conductor is pressed near the ground surface,
Therefore, the weed-taking rod is pressed against the second wrapped conductor near the ground surface, and the contact surface between the weeding device and the gripping device is maintained for a long time in the moving direction, and the friction body on the surface of the weeding rod prevents grass from sliding. Since this prevents the grass from growing, even short grass can be pinched.
A longer and more powerful pulling force is applied to the grass, ensuring weeding of short grass and grass with strong fixation power. Moreover, the removed grass does not get tangled, and a large amount can be easily stored in the storage box.

In addition, the second weeding machine of the present invention further includes cutting blades arranged in a comb-like shape on the weeding rod of the weeding device, so that the top of the cutting blades is lower than the top of the weeding rod when the weeding rod moves linearly. It is located inward and is attached so as to protrude outward from the top of the weed capture rod during curved movement, so in addition to the effect of the first invention, the protrusion of the cutting blade allows the grass to be evened up before weeding. Since the grass is tied up and cut around the roots, it is possible to easily and reliably pull out the grass with its roots.

[Brief explanation of drawings]

FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention, FIG. 2 is a perspective view of the same main part, FIG. 3 is a partial perspective view of the same main part, and FIG. 5 is a sectional view of the main part of the embodiment, FIG. 5 is a perspective view of the main part, and FIG. 6 is a sectional view of the main part of the embodiment.
It is a side view of the principal part of yet another Example of this invention. 1... Airframe, 2... Running roller, 3... Running roller,
4... Weeding device, 5... Gripping device, 6... Storage box, 1
0...shaft, 11...chain gear, 12...chain, 13...
Grass intake rod, 14... Mandrel, 15... Friction body, 16
...roller, 17...flat belt, 20...cutting blade, 20a
...The top of the cutting blade.

Claims (1)

[Claims] 1. An aircraft configured to be able to move on the ground;
a weeding device having weeding rods provided at a required interval on a first winding transmission body attached to the machine body;
a drive device that drives the first wrapped transmission body;
a gripping device comprising a second winding transmission body that contacts the weeding device attached to the machine body,
The first wrapped conductor and the second wrapped conductor are each rotatably wound between a plurality of rotating bodies, and the first wrapped conductor is rotatably wound between the rotating bodies that support the first wrapped conductor. the lower one and the lowermost one of the rotating bodies that support the second wrapped conductor,
A friction body is mounted on the surface of the grass intake rod, which is placed close to the ground surface and facing each other, and is pressed against the second wrapped conductor between the lowermost rotating bodies. A weeding machine. 2. A machine body capable of moving on the ground, a weeding device in which weed-catching rods are provided at required intervals on a first wrapped conductor attached to the machine body, and A gripping device comprising a driving device for driving and a second wrapped conductor that contacts the weeding device attached to the body, and grips each of the first wrapped conductor and the second wrapped conductor. A lowermost rotating body that is rotatably wound between a plurality of rotating bodies and supports the first wrapped conductor, and a rotating body that supports the second wrapped conductor. The lowest one of them is placed close to the ground surface and facing each other, and on the surface of the grass intake rod, between the lowermost rotary body,
A friction body that is pressed against the second wrapped conductor is installed, and cutting blades are arranged in a comb-like shape on the weed-taking rod of the weeding device, so that the top of the cutting blade is arranged to prevent linear movement of the grass-taking rod. This weeding machine is characterized in that it is sometimes located inward from the top of the grass-catching rod, and is mounted so as to protrude outward from the top of the grass-catching stick during curved movement.