JP2000004692A - Mulching device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mulching device without the removal of film by a wind pressure and requiring no fitting work by human hand after turning by installing a specific nipping device capable of freely contact to and separate from a tread pressing body. SOLUTION: This mulching device 3 carries out a covering by delivering left and right edges of a rolled agricultural film P and pressing it by a tread pressing body 5 on the earth and is constituted by installing a nipping device 36 capable of freely contacting to and separating from the tread pressing body 5. The nipping device 36 is constituted to nippingly hold left and right edges of the agricultural film P together with the tread pressing body 5 in a state of floating of the tread pressing body 5. The nipping device 36 is preferably brought to be freely in contact to and separated from the tread pressing body 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-apparatus, and more particularly to a multi-apparatus for preventing agricultural films from being detached by wind pressure during a coating operation.

[0002]

2. Description of the Related Art A so-called tunnel multi-unit in which a synthetic resin film or sheet such as polypropylene (hereinafter referred to as an agricultural membrane) is coated on an arch-shaped column which is planted (erected) in a ridge is disclosed in JP-A-8-56503, Utility Model No. 2525637, JP-B-57-29122, and the like, and a roll-wound agricultural membrane is provided so as to be able to be extended freely, and a stepping body (stepping pressure) arranged side by side on the left and right sides Wheel)
It is basically configured to cover and cover the soil while stepping on the left and right side edge portions.

[0003]

In the conventional multi-unit, the left and right treads are stepped on the left and right side edge portions of the agricultural film to cover the agricultural film while feeding it out. If it blows, there is a possibility that the agricultural film body may come off from the tread wheel. When the agricultural film body is separated from the tread ring, the film body cannot be extended, so that the detached film body has to be squeezed again to the tread ring, and therefore, the work is easily interrupted. .

Further, when turning on a headland or moving to the next ridge, etc., the left and right treads must be lifted once, and at this time, the agricultural membrane comes off the treads. When the left and right tread wheels are brought into contact with the ground after the turning operation, it is necessary to manually bite (insert) the membrane into the tread wheels, which has led to a reduction in efficiency.

[0005] The present invention is applicable to the case where the left and right treads are lifted up to move to the next ridge when the left and right treads are stepped on both side edges of the film body, or when the left and right treads are lifted to move to the next ridge. It is an object of the present invention to provide a multi-device in which a body is held in cooperation with a treading body so that the film body does not come off due to wind pressure, and that the film body does not need to be manually pressed after turning.

Although the present invention is useful when applied to a so-called tunnel multi-unit, for example, Japanese Utility Model Publication No.
As disclosed in Japanese Patent No. 3287, the present invention can also be applied to a multi-device that directly covers a ridge surface.

[0007]

SUMMARY OF THE INVENTION The present invention achieves the above object by providing a multi-apparatus for covering the left and right side edge portions of a rolled agricultural membrane while stepping on the ground by stepping on the ground with a stepping body. To this end, the following technical measures have been taken. That is, the multi-device according to claim 1 is
A gripping tool is provided which can be freely moved toward and away from the treading body, and the gripping tool cooperates with the treading body to grip the left and right side edge portions of the agricultural membrane with the treading body floating above the ground. It is characterized by being constituted.

[0008] By adopting such a configuration, the covering operation of inserting the left and right side edge portions of the rolled agricultural membrane between the treading body and the holding tool to ground the treading body to perform the covering operation. Even when wind pressure acts on the agricultural film body, the film body is clamped by the clamps, so there is no detachment from the left and right treads, and therefore, there is no interruption of the work and the like. .

Further, when turning on a headland or the like, the left and right treads are lifted (floated). In this state, the agricultural membrane is held by the holding tool in cooperation with the tread. It is not necessary to manually insert (insert) the membrane, so that the coating can be started immediately after turning. Further, it is recommended that the holding tool be freely movable toward and away from the stepping body by an elastic force (claim 2).
In addition, the stepping body is formed of a rolling wheel,
It is preferable that the outer periphery of the ring has a pulp structure, and that the holding member is formed by forming a bar into a sled shape and bites into the pulp structure portion (claim 3).

[0010] By adopting such a configuration, the agricultural film body is sandwiched by the concave shape and is reliably prevented from being detached, and the holding member is formed in a sled shape by a rod material. There is little breakage of the agricultural membrane during feeding, and the film is fed smoothly and lightly. Furthermore, in the present invention, in claim 1 to claim 3 described above, a soil covering member that covers soil with respect to the left and right side edge parts of the coated agricultural film body is provided at a rear portion of the treading body arranged side by side left and right, A pair of left and right treads and a covering member are provided, and a supporting arm that can swing vertically is provided, and a resilient means for urging the treading member and the covering member in the ground direction via the supporting arm is provided. It is a feature (claim 4).

[0011] By adopting such a configuration, the soil is turned down by covering the left and right side edge portions of the coated agricultural membrane, and the soil covering pressure and the stepping pressure can be increased only by the elastic pressure means. In addition, by providing the waist bending means together with the repression means, it is possible to reliably follow irregularities (undulations) on the ground (field). In the present invention, it is recommended in the above-mentioned claims 1 to 4 that a plurality of roll receiving means for supporting the agricultural film body wound in a roll so as to be able to be fed out is provided at intervals in the roll longitudinal direction. (Claim 5).

[0012] By adopting such a configuration, when the roll-wound agricultural film is suspended so as to be able to be extended, it is possible to suppress the bending of the roll-shaped film (the phenomenon of curving in a curved shape). For this reason, not only can the feeding be smooth and light, but even if the diameter of the roll-shaped film body is gradually reduced by feeding, the reception following this can be ensured.

Further, in the present invention, as described above, a multi-device for directly covering the ridge surface may be used. However, the agricultural film body wound in a roll is planted at intervals in the ridge longitudinal direction. It is recommended that the tunnel mulch cover the arched tunnel strut (claim 6).

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail as a tunnel multi-device with reference to the drawings.
As described above, the present invention is also applicable to a ridge surface coating device (multi-device). FIGS. 1 to 5 show a first embodiment, in which a traveling machine body 1 shown as a transport trolley includes a traveling device 2 shown in the form of a left and right crawler, preferably a rubber crawler. It is possible to travel along the ridge longitudinal direction (arrow F in FIG. 1) over the ridge A on the valley B of the ridge A indicated by.

Since the arch-shaped tunnel support C is erected (standing by driving) on the ridge A at intervals in the longitudinal direction, the traveling machine body 1 is correctly positioned so as not to interfere with the support C. It is framed in a gate shape when viewed from the rear (in the front-rear direction), and can be steered (including turning) by an operator grasping and accompanying a steering handle (not shown).
A multi-device 3 according to the present invention is provided behind the traveling machine 1, and the multi-device 3 can be rolled out of a film or sheet (hereinafter, referred to as an agricultural film P) of polypropylene, polyethylene, or the like so as to be able to be fed out. It is mainly composed of a suspended membrane supply unit 4 and a covering work unit 7 which is arranged side by side on the left and right as a set of a treading body 5 and a soil covering member 6 exemplified in the form of a wheel. The left and right side edge portions of the agricultural film body P are stepped on the ground by the treading body 5 so as to cover the tunnel support C while being extended and cover the left and right side edge portions of the agricultural film body P with the soil covering member 6. Have been.

As shown in FIGS. 1 and 2, the film supply unit 4 has a toolbar 9 provided at the rear of the left and right support members 8 extending rearward from the left and right sides of the traveling body 1. A pair of left and right support stays 10 spaced apart in the left and right direction
, Which are vertically movable and position-changeable, and each of the support stays 10 is provided with two first and second upper and lower stages extending forward.
Two right and left pairs of support arms 11 and 12 are provided.

The left and right first support arms 11 are adapted to suspend a roll-wound agricultural film body P so as to be able to be extended freely. And the first support arm 11
A square pipe 13 is attached to the front end of the
Left and right supports 14 are inserted into the rectangular pipe 13 so as to be freely changeable in the left and right direction, and both ends of the agricultural film body P wound around the left and right supports 14 are rollably suspended.

The first support arm 11 is provided with the pin insertion hole 1
1A, a fulcrum O can be changed by inserting and removing a pin from the hole 11A.
By changing the position of 4 in the left-right direction, it is possible to cope with the magnitude of the roll length of the agricultural film body P. The left and right second support arms 12 rotatably support the receiving roll 15 and are attached to the support stay 10 by two pin members that can be inserted and removed from the support stay 10.
2A, while the support stay 10 is formed with a plurality of upper and lower through holes 10A.

Accordingly, the front and rear positions of the receiving roll (roll receiving means) 15 are adjusted by inserting and removing the two pin members, and one of the two pin members is inserted into the insertion hole 10A, so that the vertical position is adjusted. The film P is adjusted from here, and the film P is supported by the receiving roll 15 from below in accordance with the diameter of the rolled agricultural film P, and the receiving roll 15 is moved in the roll longitudinal direction ( Since a plurality of films are provided at intervals in the left-right direction (two in the figure), even if the film body P is long, it is possible to suppress bending (warpage) and to smoothly feed the film body P. Since the body P is provided on the first support arm 11 that moves up and down about the fulcrum O, even if the diameter is gradually reduced by the feeding, the body P is reliably supported by the receiving roll 15 and the fluctuation of the feeding position is reduced. It is doing.

The second support arms 12 are connected to each other by a stay 16, and the stay 16 is provided with a third support arm 17 extending forward, and the third support arm 17 has a tension shown in the form of a roller. Means 18 are attached, and the tensioning means 18 prevents slack of the unfolded film body P which is positioned in front of the agricultural film body (roll) P and at the center in the left-right direction.

The left and right covering work sections 7 are respectively mounted on left and right support rods 20 which are pivotally mounted on the left and right sides near the lower portion of the traveling machine body 1 so as to be vertically movable about a horizontal axis 19 and extend rearward. The left and right support rods 20 are moved along a horizontal axis 1 by lift means 21 exemplified by a fluid cylinder (hydraulic cylinder).
9 can be moved up and down around the fulcrum, so that the covering work unit 7 can be freely changed between a working posture in which it touches the ground and a non-working posture in which it floats above the ground.
1 can be operated (expanded or contracted) by switching a fluid pressure (oil pressure) or the like by an operator operating a control lever provided in the vicinity of the above-mentioned steering handle.

The left and right support rods 20 have vertical waist-folding means 22 in the middle of the longitudinal direction, and the waist-folding means 22 pivotally attaches a support arm 23 about a fulcrum Q so as to be vertically movable (swingable). And the stepping body 5 and the soil covering member 6 mounted on the support arm 23
And is urged in the ground direction by the resilient means 24.

The left and right resilient means 24 insert a resilient rod 26 vertically movably into a bracket 25 fixedly installed on the support rod 20 and extend the lower end of the rod 26 to the extension of the support arm 23. The coil spring 27 pivotally mounted on the 23A and wound around the resilient rod 26 is interposed between the upper surface of the bracket 25 and the spring receiver 28 mounted on the rod 26 so as to be position-adjustable (changeable). Code 29
Indicates a stopper.

A spring support 30 and a support stay 31 are fixed to the left and right support arms 23. The support stay 31 is extended downward, and a wheel stay 32 is pivotally supported at the extended end to extend rearward. A lower end of an adjustment rod 33 inserted through a spring receiver 30 is pivotally mounted in the middle of the wheel stay 32, and a coil spring 34 is wound around the adjustment rod 33, and a tread body is provided via the wheel stay 32. 5 is urged downward.

The left and right treading members 5 are wheel-shaped and supported by a wheel stay 32 via a bowl-shaped bearing 35 so as to be freely rotatable. The outer periphery of the treading member 5 is a resilient structure 5A made of a sponge or the like. Holder 36 that can be freely moved toward and away from left and right pressure members 5
Is mounted on a support bar 37 provided on the wheel stay 32, and the holding member 36 is formed of a bar made of metal, resin, or the like, formed in a sled shape from the front side of the treading body 5 to the rear downward. The tread 5 is extended downward to the central portion by the elastic force of the bar, and the left and right side edge portions of the agricultural film body P cooperate with the tread 5 while the tread 5 is floated above the ground. It is configured to be able to pass through the film body P in this sandwiched state, and also to sandwich the film body P in the ground state (working posture).

The left and right earth covering members 6 are arranged outside and rearward of the treading body 5, and in the drawing, a rollable dish-shaped disk having a disc angle or the like is exemplified. By moving inward while cutting the soil at, the soil on the left and right side edge portions of the film body P that has passed through the treading body 5 can be covered. In addition, FIG.
In FIG. 2 and FIG. 2, the right and left support rods 20 are provided with guide means 38 comprising upper and lower pairs of rolls for sandwiching and guiding the left and right side edges of the film body P.

Next, the operation of the first embodiment will be outlined. The roll-wound agricultural film body P is passed through the tensioning means 18 and the left and right side edges thereof are introduced into the guiding means 38, and the covering work unit is held in a state where the agricultural film body P is squeezed (held) by the stepping body 5 and the holding tool 36. 7 is set to the working posture (ground contact state), and the traveling device 2 is caused to travel along the longitudinal direction of the ridge A with the traveling device 2 on the valley B.

By this running, the left and right treads 5 are formed into the film P
Rolls and rolls out, and rolls out and rolls out the roll wound body P supported by the roll receiving means 15, while covering the tunnel support C with the soil covering member 6. The soil is covered and the covering operation is continued. During this covering work, even if there are irregularities in the valley B, the covering work part 7 is urged to the ground by the resilient means 24 and is supported via the waist breaking means 22, so Is covered with the agricultural film body P.

Although the diameter of the agricultural membrane P is reduced as it is fed, the agricultural membrane P is supported by the roll receiving means 15 by its own weight. Therefore, the feeding position (in FIG. 1, from below, but from above). (They may be fed out), and the feeding is performed in a state in which the slack is prevented by the tensioning means 18 without much change. Further, the outer periphery of the stepping body 5 has a elastic structure 5A.
Since the holding member 36 made of a bar is bitten by the elastic force, even if an external force acts on the film body P due to wind pressure during the work, the film body P does not come off from the treading body 5, In addition, since it is sled-shaped, the film P can be smoothly and lightly pulled out while being sandwiched.

When the covering operation progresses and becomes close to the headland of the ridge A, the lifting means 21 is extended, so that the covering work section 7 is lifted (lifted) as shown in FIG. However, even at this time, since the film body P is sandwiched between the treading body 5 and the holding member 36, the traveling machine body 1 is turned in the lifting posture to move to the next ridge A, and the covering work unit 7 is moved. By lowering to the ground, it is possible to immediately shift to the coating operation (the film body P after the coating operation unit 7 is cut by a cutter or the like before turning).

FIGS. 6 and 7 show a second embodiment of the present invention. Since the basic structure and operation are the same as those of the above-described first embodiment, common parts are indicated by common reference numerals. Explain exclusively. The film supply unit 4 and the coating work unit 7 are mounted on a multi-machine frame 50, and the multi-machine frame 50 is a high-floor tractor (wheel-type tractor) not shown.
It can be moved up and down by a three-point link means 51 extending rearward (which serves as a lift means), and has a pair of left and right gauge wheels 52 at the front.

The holding member 36 is a spring member 5 having a coil portion 54A on a stay 53 projecting forward from the bowl-shaped bearing 35.
5 is attached to one end piece 55B, and the other end piece 55C is provided with a spatula (plate-shaped or rod-shaped) holding tool 36 for the elastic structure 5A of the stepping body 5.
It is installed by biting from below. Therefore, after inserting the film body P in a state where the holding member 36 is separated from the elastic structure 5A against the elastic force of the spring member 55, the holding member 36 is held by the elastic force and the work is performed in the same manner as in the first embodiment. is there.

Although the embodiment of the present invention is as described above, the following design changes are possible. As the roll receiving means, two rolls may be arranged side by side and a roll wound thereon may be placed thereon, or the bar may be U-shaped. A film guide rod having an arched shape and a forwardly inclined posture may be mounted between the film supply unit and the coating work unit. The treading body and the earth covering member may be in the shape of a shoe (boat).

[0034]

As described above in detail, according to the present invention, the film body does not come off due to wind pressure or the like during the coating operation of the film body, and when the film is turned (including during movement on the road), the film body is covered. Since the body is pinched, it is possible to immediately proceed to the next coating operation.

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of the present invention.

FIG. 2 is a partially omitted perspective view of FIG. 1;

FIG. 3 is a rear view of a main part of FIG. 1;

FIG. 4 is a side view of the holding unit of FIG. 1;

FIG. 5 is an operation diagram at the time of turning shown in FIG. 1;

FIG. 6 is a side view showing a second embodiment of the present invention.

FIG. 7 is a side view of the holding unit of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling body 3 Multi apparatus 4 Membrane supply part 5 Treading body 6 Covering member 36 Clamping tool

Claims (6)

[Claims] 1. A multi-apparatus for covering the left and right side edge portions of a roll-wound agricultural film body by stepping on the ground by using a treading body, wherein the holding device is capable of coming and going with respect to the treading body. The multi-device, wherein the holding device is configured to hold the left and right side edge portions of the agricultural membrane in cooperation with the tread while the tread is raised above the ground. 2. The holding device according to claim 1, wherein the holding device is configured to be able to freely contact and separate from the stepping body by elastic force.
The multi-device as described. 3. The stepping body is formed of a rollable ring body, and the outer periphery of the ring body has a pulp structure, and the holding member is formed by forming a bar into a sled shape. The multi-apparatus according to claim 1, wherein the multi-apparatus is inserted into a structural part. 4. A covering member for covering the left and right side edge portions of the covered agricultural film body is provided at a rear portion of the left and right treading members, and the left and right treading members and the covering member are assembled. And a resilient means for urging the stepping body and the earth covering member in the direction of the ground via the supporting arm. The multi-device according to any one of the above. 5. The apparatus according to claim 1, wherein a plurality of roll receiving means for supporting the agricultural film body wound in a roll so as to be able to pay out are provided at intervals in the longitudinal direction of the roll.
5. The multi-apparatus according to any one of 4. 6. The agricultural film body roll-wound is a tunnel mulch that covers arch-shaped tunnel posts that are erected at intervals in the ridge longitudinal direction. The multi-apparatus according to any one of claims 1 to 5,