JP4754878B2 - Multi-work machine and multi-work method - Google Patents

Description

  The present invention relates to a multi-working machine and a multi-working method capable of covering a film on the entire upper surface of a reed formed by a reed forming plate at a forming start end of an adjacent reed without trouble.

  The multi-work machine is configured to form a rotary roll in order to form a film roll having both ends rotatably supported by a frame and soil softened by a rotary device in a state where a predetermined brake torque is applied. And a pair of left and right treading wheels that are driven and rotated while stepping on both ends in the width direction of the film covering the entire upper surface of the ridge formed by the heel molding plate. The film rolled by rotating the film roll is covered by the driven rotation of each treading wheel, covering the entire surface of the ridge, and covering the both ends of the film in the width direction immediately after being fed by the covering tool. And it is an agricultural working machine of the structure which coat | covers a film on the surface immediately after shape | molding.

In a multi-work machine, after cutting the film at the forming end of the scissors, the multi-work machine is lifted and swung to the forming target part of the adjacent scissors, and then the multi-work machine is moved to the forming start end of the adjacent scissors. It is lowered to start the multi-operation of the adjacent fence. When the film is cut at the forming end of the ridge, the feeding end of the film remains in a floating state on the film roll side. For this reason, when the multi-work machine is raised, the feeding end of the film is caught in the front rotary device side by wind from the rear, etc. When the film is lowered, both ends in the width direction of the feeding end of the film are not stepped on by the pair of left and right pedaling wheels, and even if the multi-work machine moves forward as it is, the film is not multiplied on the formed bag. Therefore, when the multi-work machine is lowered in the adjacent forming part of the heel, the assistant or the driver who descends from the driver's seat pulls out the feeding end of the film rearward and in the width direction so as to cover the entire heel. Since the multi-work machine had to be lowered with the spreader placed under the pair of left and right treading wheels to enable covering at the beginning of multi-work, the film feed end was operated as described above. As a result, the work efficiency has also been reduced.
Japanese Patent Laid-Open No. 10-327683

  In view of the above-mentioned problems, the present invention prevents the feeding end of the film that has been cut at the molding end of the scissors and raised integrally with the multi-work machine from being caught in the front of the multi-work machine, It is possible to cover with an earth covering tool from the beginning of multi-operation so that multi-operation can be performed reliably on adjacent reeds without manually spreading the film in the width direction at the start of multi-operation on adjacent reeds. Is an issue.

  The invention of claim 1 for solving the above-described problem is that a film roll having both ends rotatably supported by a frame in a state where a predetermined brake torque is applied, and soil that has been softened by a rotary device are provided. Stepping pressure is applied so that both ends in the width direction of the film covering the entire upper surface of the ridge formed by the ridge-forming plate and the ridge-forming plate disposed immediately after the rotary device in order to form the ridge shape The pair of left and right treading wheels that are driven and rotated by moving forward, and a pair of earth covering tools for covering the both ends of the treaded film in the width direction are provided. A multi-work machine for covering the entire surface of the reed by rotating a film roll, and facing backward from the frame at a predetermined interval along the width direction of the reed A pair of left and right elastic bars supported in a cantilever state, and by cutting the film fed out at the molding end of the ridge, the feeding end of the film remaining in a floating state on the film roll side To prevent the elastic bar from being caught on the side of the rotary device, the elastic bar is elastically restored by bending the leading end of each elastic bar in a bent state at both ends in the width direction of the feeding end. Thus, a tension along the front-rear direction is applied to both end portions in the width direction of the feeding end portion.

The invention according to claim 2 prevents the film feeding end from being caught on the rotary device side in front of the multi-work machine when the multi-work machine according to claim 1 is used to move to the adjacent fence. And a multi-working method in which the film can be covered without any hindrance on the entire upper surface of the ridge formed by the ridge forming plate at the start end of the adjacent ridge, and each elastic bar is bent at the ending end of the ridge. The leading end is pierced into the feeding end of the film, and the multi-working machine is raised and swiveled in a state in which the tension along the at least the front-rear direction of the multi-working machine is applied to the feeding end. When the multi-work machine is lowered at the start end, each elastic bar is bent and advanced while being pierced at both ends in the width direction of the feed end of the film, both ends in the width direction of the feed end of the film are Tread With the trampling by wheels, being cover soil by feeding end widthwise of the end portions a pair of cover soil tool of the film, by feeding end of the film with respect to the ground surface is immobile, said Curved state The elastic bar is gradually restored to the original linear shape, and the elastic bar tip part is naturally pulled out from the feeding end of the film during the restoration.

  According to the first and second aspects of the invention, the following operational effects can be obtained. When each elastic bar is bent at the molding end portion of the ridge and the leading end is pierced into the feeding end portion of the film fed from the film roll, the width of the feeding end portion is restored by the restoring force of the bent elastic bar. In the state where the central portion of the direction has a predetermined slack, both end portions in the width direction of the feeding end portion are given tension along the front-rear direction of the multi-work machine, and in this state, the multi-work machine is raised. Turn. Since both ends in the width direction of the feeding end of the film are tensioned at least in the front-rear direction of the multi-work machine, both ends in the width direction of the feeding end are bent in the front-rear direction of the multi-work machine. The width direction of the feeding end of the film below the pair of left and right treading wheels from when the multi-work is completed until the multi-work is started at the molding start end of the adjacent kite The state where both ends of the film are arranged is maintained, and there is no possibility that the feeding end of the film is caught in front of the multi-work machine. The piercing of the tip of the elastic bar with respect to the feeding end of the film may be before or after the cutting of the film, but the tip of the elastic bar in a state where tension is applied to the fed (multi-finished) film Since it is easier to pierce the film, the film is preferably cut after the piercing.

When the multi-work machine is lowered and advanced at the forming start end of the adjacent rod, since the film feeding end is maintained in the state of being widened in the width direction, both ends in the width direction of the film feeding end are with the trampling by each treading wheel, it is cover soil by feeding end widthwise of the end portions a pair of cover soil tool of the film, for feeding end of the film with respect to the ground surface is immobile, Repetitive film The tip of the elastic bar that is pierced by the protruding end is immovable with respect to the ground surface. As a result, due to the advance of the multi-work machine, the bent elastic bar gradually recovers to the original straight line, and the elastic bar tip naturally comes off from the feeding end of the film during the recovery. In this state, it protrudes almost horizontally toward the rear of the frame. For this reason, there is no longer any “step failure” at the feeding end of the film by the pair of left and right treading wheels, and each time the multi-work machine turns down, the driver can “press the treading state at the feeding end of the film by the treading wheel” The operation can be continued without any confirmation. Therefore, the driver's psychological burden is reduced and the efficiency of multi-tasking is increased. Further, since an assistant is not required, the multi-operation can be performed without trouble by only one driver and without the driver getting off the driver's seat. The treadle wheel is attached to the lower end of the treadle wheel support rod that is rotatably supported by the frame.When the multi-work machine is raised, the treadle wheel attached to the lower end of the treadle wheel support rod is Rotate to the front of the multi-work machine around the rotation fulcrum of the tread wheel support rod by its own weight, so that both end portions in the width direction of the film are sandwiched between the rear end clamping unit and the tread wheel It is pinched. Since this clamping force is larger than the longitudinal tension (restoring force of the elastic bar) acting on the feeding end portion of the film, the film is not further fed by the tension.

According to a third aspect of the invention, on the premise of the second aspect of the invention, the pair of elastic bars are directed toward the center in the width direction with respect to the original position supported in a cantilevered state on the frame rearward. It is characterized in that the whole is bent and the leading end is pierced into the feeding end of the film in a state where it has been moved by a predetermined length.

  The elastic bar is pierced into the feeding end of the film with a predetermined length toward the center in the width direction with respect to the original position. Since not only tension along the longitudinal direction of the machine but also tension in the width direction is applied, both ends in the width direction of the feeding end of the film are less likely to sag even along the width direction. . What is important in the multi-working method according to claim 2 is that a tension along the front-rear direction of the multi-work machine is applied to the feeding end of the film so that the feeding end is not caught in front of the multi-working machine. In addition to this, when the multi-work machine is lowered by the adjacent rod, it is necessary to ensure that both ends in the width direction of the feeding end of the film are stepped on by the pair of left and right pedaling wheels. If this state is not ensured, the feeding end of the film will advance integrally with the multi-work machine in the adjacent saddle, and multi-work will not be possible. For this reason, tension in the width direction is applied to the feeding end of the film, and the feeding end of the film is less likely to sag along the same direction. When starting multi-operation, it means that both ends in the width direction of the feeding end of the film are easily stepped on by the pair of left and right treading wheels, and both ends in the width direction of the feeding end of the film are inside the treading wheel. It is possible to avoid entering into a state where it is not possible to step on the pedal (that is, a state where multi-impossibility is possible).

According to a fourth aspect of the present invention, on the premise of the second or third aspect of the invention, the pair of elastic bars are supported from the support end toward the free end in the original position where the pair of elastic bars are supported in a cantilevered state toward the rear side. It is characterized by being supported by the frame so that the interval is wide.

  The piercing position of the leading end of the elastic bar with respect to the feeding end of the film is likely to be located outside in the width direction of the feeding end (approaching the both ends of the edge with reference to both ends of the feeding end of the film) That is, the tension application range along the width direction of the feeding end of the film is widened. This means that, when the multi-work of the adjacent rod is started after the multi-work machine is turned, both end portions in the width direction of the feeding end portion of the film are easily stepped on by the pair of left and right pedaling wheels. On the other hand, even when the pair of elastic bars is moved by a predetermined length toward the center in the width direction with respect to the original position as in the invention of claim 3, the distance between the tip ends of the pair of elastic bars is the base end. It can be prevented from becoming narrower than the interval between the parts. For this reason, it is possible to prevent the component force along the width direction of the feeding end portion of the film out of the restoring force component due to the bending of the elastic bar from being directed toward the center of the feeding end portion of the film. The tension in the width direction can be applied over substantially the entire region of both end portions in the width direction, which is the remaining portion excluding the central portion in the width direction.

  According to a fifth aspect of the present invention, on the premise of any of the second to fourth aspects of the present invention, the pair of elastic bars has a pedaling wheel attached to a lower end portion thereof and is rotatably supported by the frame. It is supported by the upper end part of a wheel support rod. When the multi-work machine mounted on the rear part of the tractor is carried into and out of the field, the tread wheel support rod is rotated so as to face substantially upward and is fixed at that position. On the other hand, during multi-operation, the treadmill wheel support rod is disposed in a forward tilted posture, and the elastic bar is disposed substantially horizontally when not in use, so that the treadmill wheel support rod faces substantially upward. When the frame is fixed to the frame, the elastic bar is arranged obliquely upward without interfering with other members.

The invention of claim 6 is for forming a film roll having both ends rotatably supported by a frame in a state where a predetermined brake torque is applied, and soil softened by a rotary device into a bowl shape. And a pair of left and right treading wheels that follow and rotate while stepping on both ends in the width direction of the film covering the entire upper surface of the ridge formed by the heel molding plate, and a heel molding plate disposed immediately after the rotary device A pair of earth covering tools for covering both ends in the width direction of the film pressed by the pair of pressure wheels, and a cantilever state from the frame to the rear at a predetermined interval along the width direction of the ridge And a pair of left and right support bars attached to the front end portions of the gripping members for holding both ends in the width direction of the film cut at the molding end portion of the scissors. Times The multi-work machine for covering the entire surface of the bag with the film rolled by rotating the film roll according to the above, and when moving to the adjacent bag, the feeding end of the film is a rotary device in front of the multi-work machine Is a multi-working method in which the film can be covered without any trouble on the entire upper surface of the ridge formed by the ridge forming plate at the start end of the adjacent ridge, With the gripping members attached to the pair of support bars in the section, the film is gripped in the state where both ends in the width direction of the film are arranged directly below the pair of treading wheels, and the multi-work machine is raised and swiveled. When the multi-work machine is lowered at the forming start end of the adjacent rod and each gripping member is advanced while holding both ends in the width direction of the feeding end of the film, With both ends in the width direction of the end portion is trampling on the trampling wheels, both ends in the width direction of the feeding end portion of the film is being multi-work is started cover soil by said pair of cover soil device, the multi-working machine With this advance, the pulling force of the support bar becomes larger than the gripping force of the gripping member with respect to the feeding end portion of the film, and the gripping of the gripping member is released.
According to the invention of claim 6, both ends of the feeding end portion in the width direction are cut by the gripping members attached to the tip end portions of the pair of support bars by cutting the feeding end portion of the film at the molding end portion of the ridge. Grip and lift the part. In this state, since the feeding end portion in the width direction of the film is disposed immediately below the pair of treading wheels, when the multi-work machine is raised and swiveled, the feeding end portion of the film becomes a wind from behind. The risk of being caught in front of the multi-work machine is eliminated. When the multi-work machine is lowered and advanced at the forming start end of the adjacent rod, the feeding end in the width direction of the film is grounded while being pressed by each pressing member and being pressed by each pressing wheel, and is covered by the covering tool. Therefore, multi-operation can be performed stably. Further, since an assistant is not required, the multi-operation can be performed without trouble by only one driver and without the driver getting off the driver's seat. Furthermore, due to the advance of the multi-work machine, the pulling force of the support bar becomes larger than the gripping force of the gripping member with respect to the feeding end portion of the film, and the gripping of the gripping member is naturally released, Multi-work can be started by only one driver and without the driver getting out of the driver's seat.

According to a seventh aspect of the invention, on the premise of the sixth aspect of the invention, the gripping member is attached to the tip of the support bar via a tension spring. According to the seventh aspect of the present invention, when the multi-operation is started, the tension force of the tension spring gradually increases, and this tension force releases the gripping member that grips the feeding end of the film. Therefore, it becomes easy to release the gripping member from the feeding end of the film.

The present invention provides a film roll having both ends rotatably supported by a frame in a state where a predetermined brake torque is applied, and the rotary device for forming the soil softened by the rotary device into a bowl shape. The heel-forming plate disposed immediately after the heel-plate and the both ends in the width direction of the film covering the entire upper surface of the heel-molded by the heel-forming plate are moved forward so that they do not move, thereby being driven to rotate. A film provided with a pair of left and right treading wheels and a pair of earth covering tools for covering both ends of the treaded film in the width direction, and the film roll rotated by the driven rotation of each treading wheel A left and right pair supported in a cantilevered state from the frame to the rear at a predetermined interval along the width direction of the heel. By providing an elastic bar and cutting the film fed out at the molding end of the ridge, the feeding end of the film remaining in a floating state on the film roll side is prevented from being caught in the front rotary device side Preferably, the end portions of the elastic bars are pierced at both ends in the width direction of the feeding end portion in a bent state, and both ends in the width direction of the feeding end portion are caused by the elastic restoring force of the elastic bar due to the bending. It is characterized by applying tension to the part along the front-rear direction. For this reason, even if the film is cut at the molding end of the ridge and the film detached from the ridge is placed in a floating state, the tension of the pair of elastic bars acts on both ends in the width direction of the film. Thus, the feeding end of the film is prevented from being caught in front of the multi-work machine due to wind from the rear. In addition, even when the multi-work machine is lowered to the forming start end portion of the adjacent saddle, since both end portions in the width direction of the film are arranged directly below the pair of treading wheels, it is possible to cause a “step failure”. Absent. Moreover, since the extended end part of the film is maintaining the state which the width | variety was expanded, the operation | work which an assistant expands a film becomes unnecessary. And the both ends of the width direction in the supply | feeding edge part of a film are covered with earth covering tool. As a result, since an assistant is not required, multi-operation can be performed without any trouble by only one driver and without the driver getting off the driver's seat. In this case, the tip of each elastic bar is often inserted into the soil, and the work is further ensured.

Hereinafter, the present invention will be described in more detail with reference to examples. FIG. 1 is a perspective view from the rear of the multi-work machine M _{1 according to} the first embodiment of the present invention, FIG. 2 is a side view in which a part of the multi-work machine M ₁ connected to the tractor E is broken, and FIG. 4 is a rear view, FIG. 5 is a perspective view of the eaves forming plate 23, and FIG. 6 is a side view of a state in which the tread wheel support rod 37 is rotated and arranged vertically.

First, the overall configuration of the multi-work machine M _{1 according to} the first embodiment will be described. As shown in FIGS. 1 and 2, the multi-work machine M _{1 according to} the first embodiment of the present invention includes a three-point link hitch H behind a tractor E (see FIG. 2) that is an example of a towing vehicle. Are connected via one upper link 1 and two lower links 2. A rotary device 3 is provided at the front of the multi-work machine M ₁ (the portion opposite to the tractor E) to expand and contract the field. Each rotary blade 3 a of the rotary device 3 is continuously rotated in a predetermined direction by power transmitted from the PTO shaft (not shown) of the tractor E through the universal joint 4. The multi-work machine M ₁ pulled by the tractor E is advanced in the direction of the arrow P _{1 as} the tractor E advances. In FIG. 2, 6 is a rear wheel of the tractor E, and 7 is a driver's seat.

The frame K constituting the multi-work machine M ₁ of the first embodiment is immediately after the rotary device 3 described above, and a horizontal machine frame 8 disposed along the width direction Q of the multi-work machine M ₁ and the horizontal machine frame 8. A pair of vertical machine casings 9 suspended from the machine casing 8 is provided. The rotary device 3 is connected to the horizontal machine frame 8 via two connection brackets 11. A pair of connecting members 12 exhibiting a curved state in plan view are extended from the pair of vertical machine casings 9 toward the rear. A rectangular tube-shaped rear machine casing 13 is fixed to the rear end portion of each connecting member 12, and each film roll support member 14 is inserted into each rear machine casing 13. By adjusting the insertion length of each film roll support member 14 with respect to each rear machine casing 13, film rolls 15 having different lengths can be mounted. The film F covering the entire surface of the ridge R formed in the field is a film roll 15 wound in a roll shape, and is rotatably supported by the film roll support members 14. That is, as shown in FIGS. 3 and 4, a paper tube chuck 17 on which a compression spring 16 is mounted is attached to the upper end of each film roll support member 14, and the film roll 15 Both end portions are inserted into corresponding paper tube chucks 17. Then, the film F is rotated while a predetermined urging force (brake torque) is applied by each compression spring 16, and the film F is fed out from the film roll 15.

Two intermediate guide roller support members 18 are attached to the back surface of the horizontal machine frame 8 at a predetermined interval in the width direction Q of the multi-work machine M ₁ . Each intermediate guide roller support members 18, have been inserted support shaft 18a along the width direction Q of the multi-working machine M _1, (in the present embodiment, five) a plurality of the said supporting Uketamawajiku 18a intermediate A guide roller 19 is rotatably supported in series. Each intermediate guide roller 19 is disposed almost directly below the film roll 15. In addition, a slack absorbing roller support member 21 is fixed to the rear part of the horizontal machine frame 8 at a substantially central part in the width direction Q of the multi-work machine M ₁ in a state of protruding rearward. The slack absorbing roller support member 21 is substantially L-shaped in a side view, and is attached in such a manner that it passes over the film roll 15 and wraps behind it so as not to interfere with the film roll 15. A slack absorbing roller 22 is attached to the slack absorbing roller support member 21 along the width direction Q of the multi-work machine M _{1 so} that the height position can be adjusted. The slack absorbing roller 22 is disposed at a substantially central portion in the width direction Q of the multi-work machine M ₁ and immediately below each intermediate guide roller 19. The slack absorbing roller 22 is used to absorb slack of the film F that is fed from the film roll 15 and guided by the intermediate guide rollers 19. It has a length corresponding to the width of the upper surface portion R ₁ of the ridge R formed by the plate 23 (described later).

Next, the ground ring 24 will be described. A support shaft 25 is rotatably attached to the pair of connection brackets 11 along the width direction Q of the multi-work machine M ₁ , and a pair of ground ring support rods 26 are attached to both ends of the support shaft 25. Is installed. Each grounding wheel support rod 26 is disposed on the side of the pair of vertical machine casings 9, and the grounding wheel 24 is rotatably supported at the front end portion thereof. Further, a height adjusting rod 27 is attached to a substantially central portion in the axial direction of the grounding wheel support rod 26. By rotating a handle 27a provided at the upper end of the height adjustment rod 27, the length of the height adjustment rod 27 changes, and the support shaft 25 is rotated accordingly. Thereby, the height position of each grounding wheel support rod 26 changes, and the attachment position of the height direction of each grounding wheel 24 is adjusted.

Next, the eaves forming plate 23 will be described. As described above, the hook forming plate 23 is disposed in the portion immediately after the horizontal machine frame 8 and the pair of vertical machine frames 9 constituting the frame K of the multi-work machine M ₁ . As shown in FIG. 5, the eaves forming plate 23 of the present embodiment has a pair of main forming plate portions 28 whose upper surface portions are cut back and bent in a substantially parabolic shape, and each main forming plate. From the upper surface forming plate portion 29 attached to the inner side surface portion of the portion 28, the pair of guide plate portions 30 attached to the front end portions of the pair of main forming plate portions 28, and the rear lower end portion of the main forming plate portion 28. It consists of a pair of narrow-groove forming plate portions 31 that are attached so as to project obliquely rearward and outward. That is, at the front end portions of the pair of main molded plate portions 28, the pair of guide plate portions 30 are loosened in plan view toward the outside of the main molded plate portions 28 over the entire length of the peripheral edge of the front end. It is shaped like a letter, and is attached so as to surround the outer portion of the front edge of each main molded plate 28 from the periphery. The pair of guide plate portions 30 gathers the soil softened by the front rotary device 3 in the center of the cocoon, and the soil remains in a portion other than the cocoon molding scheduled portion so as to contribute the entire soil to the cocoon molding. Is preventing. An abutting plate 33 for abutting a pair of treading pressure wheels 32 (described later) is fixed between the main molded plate portions 28 and the narrow groove formed plate portions 31.

Next, the tread wheel 32 will be described. A pair of substantially trapezoidal first support plates 34 in a side view are attached to the inner ends of the pair of rear machine frames 13 described above at a predetermined interval in the width direction Q of the multi-work machine M _1. ing. The mounting position of the pair of first support plates 34 in each rear machine casing 13 can be adjusted. A rotation fulcrum pin 35 is inserted along the width direction Q of the multi-work machine M ₁ at the rear ends of the pair of first support plates 34, and the rotation fulcrum pin 35 has a substantially inverted U-shaped cross section. The second support plate 36 and the treadle wheel support rod 37 are supported so as to rotate together. Further, wherein the side wall portions of the second support plate 36, together with the spring support pin 36a is projected along the width direction Q of the multi-working machine M _1, the upper surface portion of the treading wheel support rod 37, the spring A support member 37a is attached, and two tension springs 38 are elastically mounted between the spring support pin 36a and the spring support member 37a. 4 and 5, the illustration of the spring support member 37a and the tension spring 38 is omitted.

A tread wheel 32 is rotatably supported at the inner end portion of each tread wheel support rod 37, and each cover ring 39, which is an example of a covering tool, is attached to the outer portion. It has been. The pair of treading pressure wheels 32 depresses both ends F ₁ in the width direction Q of the film F fed out from the film roll 15, and is applied to both hem portions R ₂ of the heel R formed on the field by the ridge forming plate 23. They have a function of pressing, and their front portions are arranged slightly inward. In addition, the pair of soil covering rings 39 has a function of covering both ends F ₁ in the width direction Q of the film F pressed against both hem portions R ₂ of the heel R by the pair of treading pressure wheels 32. The front portions of the pressure wheel 32 are arranged with their front portions slightly outward. Then, by adjusting the mounting position of the first support plate 34 with respect to the rear machine frame 13, the distance between the pair of pedaling wheels 32 and the pair of soil covering wheels 39 can be adjusted.

In a state where multi-operation is performed on the farm field, each treadmill wheel support rod 37 rotates downward (in the direction approaching the contact plate 33) around the axis 35 a of the rotation fulcrum pin 35 by its own weight. Has been moved. Thereby, both ends F _{1 in} the width direction Q of the film F are pressed against both skirt portions R ₂ of the heel R. Further, due to the elastic restoring force of each tension spring 38, both end portions F _{1 in} the width direction Q of the film F are more strongly pressed against both skirt portions R ₂ of the flange R. When the multi-work is finished and the multi-work machine M ₁ is transported, each of the treadmill wheel support rods 37 is moved upward (in the direction of separating from the contact plate 33) around the axis 35 a of the rotation fulcrum pin 35. ). As shown in FIG. 6, each treadmill wheel support rod 37 is rotated integrally with the second support plate 36 and is arranged in a substantially vertical state. Thus, during the transport of the multi-working machine M _1, a pair of treading wheels 32 and a pair of cover soil wheels 39 is avoided that unnecessary contact with the field.

Next, the relationship between the mounting positions in the height direction of the pair of grounding wheels 24 and the pair of stepping pressure wheels 32 will be described. As shown in FIG. 2, the mounting position in the height direction of the pair of grounding wheels 24 is such that when the pair of grounding wheels 24 are grounded on the farm field, the pair of treading pressure wheels 32 are provided on the basket forming plate 23. It is adjusted so as to be grounded in a state slightly separated from the contact plate 33. For example, when the multi-work machine M ₁ is raised and the pair of pressure wheel support rods 37 are disposed in a freely rotatable state, the pair of pressure wheel 32 contacts the contact plate 33 of the saddle forming plate 23. Stop in the state. In this state, the lowermost ends of the pair of grounding wheels 24 are disposed slightly above the lowermost ends of the pair of pedaling wheels 32 in the stopped state. Therefore, when multi-operating machine M ₁ is lowered, the pair of treading wheel 32 is grounded in the field before the pair of ground wheels 24, a pair of treading wheel support rod 37 is rotated upward. As a result, a gap V is formed between the pair of treading wheels 32 and the corresponding contact plate 33 in a state where the pair of grounding wheels 24 are grounded to the field, and the film F fed out from the film roll 15 is It can pass between the tread wheel 32 and the contact plate 33.

Next, the elastic bar B will be described. As shown in FIG. 4, one side of the pair of spring support pins 36 a projecting laterally from both side walls of each second support plate 36 (in the case of the multi-work machine M ₁ of the present embodiment, the outer side The elastic bar gripping member 41 is attached to the spring support pin 36a. As shown in FIG. 6, the elastic bar gripping member 41 of the present embodiment has a pin mounting portion that is mounted on the spring support pin 36 a and substantially the same shape as the pin mounting portion, and is used for gripping the elastic bar B. This is a form in which the bar gripping portions are fixed vertically in a state orthogonal to each other. The pin mounting portion has a shape in which a nut body 43 is fixed to an open portion of a half-angle cylindrical body 42 having a substantially triangular cross section, and a spring support pin 36a inserted through the half-angle cylindrical body 42 is connected to the nut body 43. It is pressed and gripped by the hexagon bolt 44 screwed into. Similarly, the elastic bar B is gripped by a hexagonal bolt 44 that is screwed into a nut body 43 that is fixed to the half-angle cylindrical body 42 of the bar gripping portion. When each treading wheel support rod 37 is rotated upward about the axis 35a of the rotation fulcrum pin 35, the elastic bar gripping member 41 attached to each second support plate 36 is simultaneously rotated in the same direction. Is done. For this reason, when each treading wheel support rod 37 is rotated, there is no possibility that the pair of treading wheels 32 and the pair of soil covering wheels 39 interfere with each elastic bar B.

Bar gripper in each of the elastic bars gripping member 41, have proximal ends of the pair of elastic bars B is grasped, their tip (free end) is protruded toward the rear of the multi-working machine M ₁ Yes. In the case of the present embodiment, the pair of elastic bars B are disposed substantially in parallel in a plan view (see FIG. 3), and are disposed substantially horizontally in a side view, and their tip portions exhibit a state of natural bending ( (See FIG. 2). As will be described later, the pair of elastic bars B is bent by the driver and pierced at both ends F ₁ in the width direction Q of the fed film F. In FIG. 1 thru | or FIG. 3, a pair of elastic bar B in a natural arrangement | positioning state is shown with a dashed-two dotted line, and the elastic bar B of a piercing state is shown as a continuous line. For this reason, the pair of elastic bars B of the present embodiment has a diameter that can be easily bent in an elastic state by the driver, and the leading end portions of the elastic bars B in the bent state in the width direction Q of the film F. has a length enough to be piercing both ends F ₁ of.

The operation of the multi-work machine M ₁ of this embodiment will be described. In this specification, the general operation of the multi-work machine M ₁ will be described first, and then the operation of the characteristic part of the multi-work machine M ₁ of the first embodiment will be described. As shown in FIG. 2, in the field, the multi-work machine M ₁ is advanced along the arrow P ₁ , and the soil that has been expanded and loosened by the rotary device 3 is formed by scraping the soil by the straw forming plate 23. Cover the entire surface with film F (multi-operation). That is, as shown in FIG. 4, when the multi-work machine M ₁ moves forward, the pair of treading wheels 32 is driven to rotate while stepping on both ends F ₁ in the width direction Q of the film F being fed from the film roll 15. Is done. Due to the frictional force acting between the pair of treading wheels 32 and both ends F ₁ of the film F in the width direction Q, the film F has a brake torque (biasing force of the compression spring 16) at the film roll support member 14 portion. It is paid out against. The film F fed out from the film roll 15 is guided by each intermediate guide roller 19, and after the slack is absorbed by the slack absorbing roller 22, the top surface portion of the reed R formed into a substantially parabolic cross section by the reed forming plate 23. Cover R ₁ . In this state, since both ends F _{1 in} the width direction Q of the film F are stepped on the pair of treading wheels 32, the film F has a ridge R in a state where a certain tension is applied in the width direction Q. The upper surface portion R ₁ and both skirt portions R ₂ are covered. Then, both ends F _{1 in} the width direction Q of the film F are covered with each covering ring 39 disposed immediately after the pair of treading pressure wheels 32. A pair of elastic bar B is the state protruded substantially horizontally toward back, and a pair of elastic bar B does not become a trouble of multi-operation.

As shown in FIG. 7, when the tractor E that pulls the multi-work machine M ₁ reaches the end of the field (the field boundary 45), the tractor E is stopped. The field, said ridge R to the vicinity of the field boundary 45 is formed, the multi-working machine M ₁ is disposed on the molded terminal portion 46 of the ridge R. The upper surface portion R ₁ and both skirt portions R ₂ of the ridge R are covered with the end portions (feeding end portions F ₂ ) of the feeding ends of the film F fed from the multi-work machine M ₁ . As shown in FIG. 8, the driver descending from the driver's seat 7 of the tractor E bends the pair of elastic bars B in the front-rear direction, and the leading end portions 40 of both ends F in the width direction Q of the film F ₁ pierces the vicinity of the pair of treading wheels 32. Since the neighboring portion is already covered with soil, the pair of elastic bars B passes through the covered soil 47 and is pierced into both ends F ₁ in the width direction Q of the film F, and the tip 40 is inserted into the soil. It is. In the case of the present embodiment, each elastic bar B is bent not only in the front-rear direction (longitudinal direction of the ridge R) but also in the left-right direction (width direction Q). It is pierced in part F _1. As a result, at both ends F ₁ in the width direction Q of the film F, due to the elastic restoring force of the pair of elastic bars B, the component force T ₁ along the front-rear direction (longitudinal direction of the ridge R) and the left-right direction (width direction) A component force T ₂ along Q) is generated, and a tension T obtained by synthesizing these components acts diagonally outward. Since the pair of elastic bars B is bent in the front-rear direction and pierced, it is possible to avoid interference with the pair of soil covering rings 39.

As shown in FIG. 8, the piercing positions of the pair of elastic bars B are preferably immediately after the pair of pedaling wheels 32 and outside the pedaling wheels 32. This is because, as will be described later, the film F covering the ridge R at the molding end portion 46 of the ridge R is cut, but the film F is cut immediately after the piercing position of the pair of elastic bars B. Therefore, as the piercing position of the pair of elastic bars B is closer to each treading wheel 32, the length L ₁ of the feeding end portion F ₂ of the cut film F (from the portion where the pair of treading wheels 32 is treading) This is because the length of the film F to the cutting edge 48 is shortened, and the yield of the film F is improved.

As described above, at the molding end portion 46 of the heel R, the film F covering the ridge R is cut immediately after the piercing position of the pair of elastic bars B. As shown in FIG. 9, the entire multi-work machine M ₁ is lifted and raised by the action of the three-point link hitch H of the tractor E. The pair of treadmill wheel support rods 37 is rotated downward about the axis 35a of the pivot fulcrum pin 35 by its own weight, and the pair of treadmill wheels 32 abut against the abutment plate 33 provided on the saddle forming plate 23. And stop. Thereby, both ends F _{1 in} the width direction Q of the film F are sandwiched between the pair of treading pressure wheels 32 and the contact plates 33. Since this clamping force is greater than the component force T _{1 in} the front-rear direction of the tension T acting on the feeding end F ₂ in the width direction Q of the film F, the film F is not further fed by the tension T. . For this reason, the part from the film roll 15 to the contact | abutting board 33 is hold | maintained in an immovable state among the delivery ends of the film F. In addition, a pair of elastic bars B are pierced at both ends F ₁ in the width direction Q of the feeding end F ₂ among the feeding ends of the film F even when the multi-work machine M ₁ is raised. Therefore, the tension T acts on the feeding end portion F ₂ obliquely outward and rearward. For this reason, the feeding end portion F ₂ of the film F that has been lifted and separated from the ridge R is maintained in a state where it is almost covered with the ridge R even in a floating state. In other words, the both ends F ₁ in the width direction Q of the feeding end F ₂ of the film F are maintained in the state where they are arranged immediately below the pair of treading wheels 32, so that the feeding end F ₂ is Even if the air is blown by the wind from the rear, there is no risk of being caught on the rotary device 3 side. In this embodiment, the film F is cut after the pair of elastic bars B are pierced. In this case, the pair of trampling wheels 32, that because they are pierced both ends F ₁ in the width direction Q in feeding end F ₂ of the film F while trampling facilitates piercing work of the pair of elastic bars B There are advantages. However, the pair of elastic bars B may be pierced after the film F is cut.

As shown in FIG. 7, the tractor E is turned in a state where the multi-work machine M ₁ is raised, and the tractor E is adjacent to the heel R on which the multi-work has been completed. It arrange | positions at the shaping | molding start end part 49a of the shaping | molding scheduled part 49) of the collar R to be performed. In FIG. 7, the state in which the tractor E turns is indicated by an arrow 51, and the direction in which the multi-work machine M ₁ after turning advances is indicated by an arrow P ₂ (the direction opposite to the arrow P ₁ ). As shown in FIG. 10, the multi-work machine M ₁ is lowered. The feeding end F ₂ of the film F, because the tension T by the pair of elastic bars B is acting, feeding end F ₂ of the film F is grounded while maintaining its width. Both ends F ₁ in the width direction Q of the feeding end F ₂ of the film F grounded to the forming start end 49 a of the adjacent heel R are kept in a state where the pair of pedaling wheels 32 are stepped on. The tip portion 40 of each elastic bar B protruding from both end portions F ₁ in the width direction Q in feeding end F ₂ of the film F is directly inserted into the soil.

When the pair of ground wheels 24 are grounded to the field, the pair of tread wheel support rods 37 are pivoted upward about the axis 35a of each pivot fulcrum pin 35, and the pair of tread wheels 32, the contact plate 33, A gap V is formed between the two. In this state, when the multi-work machine M ₁ is moved forward along the direction of the arrow P ₂ , the soil in the field that has been inflated and loosened by the rotary device 3 is scraped by the straw molding plate 23 and formed of the straw R. A film F is coated on the entire surface. Since the feeding end F ₂ of the film F maintains its width, the tip of each elastic bar B pierced at both ends F ₁ in the width direction of the fed film F from the start of the multi-operation. With the portion 40 inserted into the soil, the film F that has been fed is pulled backward by the restoring force of each elastic bar B with its feeding end F ₂ being stepped on the pair of treading wheels 32. The film F is covered with a pair of cover rings 39 from the free end of the feeding end F ₂ of the film F. By covering the soil, both ends F _{1 in} the width direction of the film F are held as they are, and the feeding end F _{2 of the} film F is not dragged and moved.

Each of the above-described three actions (that is, that the pair of elastic bars B are pierced with tension T at both ends F ₁ in the width direction of the feeding end F ₂ of the film F, and the pair of pressure wheels 32 are provided. you have trampling the feeding end F ₂ of the film F, a pair of cover soil wheels 39 covered with soil to a free end portion of the feeding end F ₂ of the film F) is synergistically, multi working in adjacent ridges R One driver without the film F being pulled forward at the start and without the assistant extending the width of the feeding end F ₂ of the film F at the start of the multi to correspond to the width of 畦 R. In addition, the multi-work can be performed without any trouble without the driver getting down from the driver's seat 7. Accordingly, the psychological burden on the driver is reduced, and the efficiency of multi-operation is increased.

Even if the tip 40 of each elastic bar B is not inserted into the soil, the tension T of each elastic bar B pierced acts on the feeding end F ₂ of the film F. Since the feeding end F ₂ of the film F is grounded to the ground surface while being expanded in the width direction, the pair of treading wheels 32 step on the both ends F ₁ of the feeding end F ₂ of the film F. There is no obstacle to covering and covering the pair of soil covering rings 39.

As shown in FIG. 11 and FIG. 12, the pair of elastic bars B pierced in a curved state at both ends F ₁ in the width direction Q of the feeding end F ₂ of the film F are formed on the multi-work machine M ₁ . As the forward movement progresses, these curved portions are gradually stretched, and then naturally come out from the feeding end F _{2 in} the width direction Q of the film F. By gradually stretching the curved portions of the pair of elastic bars B, the tension T of each elastic bar B acting on both ends F ₁ in the width direction Q of the film F gradually decreases. In (b) of FIG. 11, '(the force component T ₁ longitudinal', a component force T ₂ of the width direction Q ') the tension T immediately before the pair of elastic bars B comes out of the film F when the tension T' Is smaller than the tension T immediately after contact with the ground. However, since both ends F ₁ behind the piercing positions of the pair of elastic bars B are covered with the respective covering rings 39, the stability of the multi-operation is ensured. Further, as shown in FIG. 11B, the length L ₂ from the position where the pair of elastic bars B is pierced to the stepping position of the pair of pedaling wheels 32 immediately before the pair of elastic bars B comes out. Then, as the length L ₂ is longer, the time during which the tension T is applied to both ends F ₁ in the width direction Q of the feeding end F ₂ of the film F becomes longer, and the multi-operation is performed in a more stable state. Is called. The pair of elastic bars B that have come out from both ends F ₁ in the width direction Q at the feeding end F ₂ of the film F are restored to the original linear shape, and therefore do not hinder multi-operation. In FIG. 12A, reference numeral 52 denotes a puncture hole of the pair of elastic bars B remaining at the feeding end F ₂ of the film F.

When the multi-work machine M ₁ that has finished multi-working is transported, the pair of treading wheel support rods 37 may be rotated upward to retreat the pair of treading wheel 32 and the pair of soil covering wheels 39 from the field scene. . Even at this time, as shown in FIG. 6, the pair of elastic bars B are rotated integrally with the treadmill wheel support rods 37 so that they do not interfere with each other.

In the multi-work machine M _{1 according} to the first embodiment described above, the pair of elastic bars B are arranged on the outer spring support pins 36 a out of the pair of spring support pins 36 a protruding from the both side wall plates of the second support plate 36. It is held by the attached elastic bar holding member 41. Thereby, the attachment interval in the width direction Q of the pair of elastic bars B becomes the widest, and the attachment positions thereof are arranged outside the piercing position in the film F, and the pair of elastic bars B are arranged in the width direction Q. It is pierced in a state elastically deformed. As the tension T (component force T _{2 in the} width direction Q) at this time increases, the feeding end F ₂ of the film F that has been lifted and floated is more reliably disposed directly below the pair of treading wheels 32. The In addition, there is no possibility of interfering with the pair of elastic bars B when each treading wheel support rod 37 is rotated.

In the multi-work machine M ₁ of the first embodiment described above, as shown in FIG. 3, the pair of elastic bars B in the original position are arranged in a substantially parallel state in plan view. In other words, the attachment interval W ₁ between the base ends of the pair of elastic bars B and the attachment interval W ₂ between the distal ends are the same. However, in order to increase the component force T ₂ in the width direction Q of the pair of elastic bars B when pierced by the film F, the mounting interval W ₂ between the distal ends of the pair of elastic bars B is set to the base ends thereof. it may be attached to larger than the mounting interval W ₁ parts each other. In this case, the component force T ₂ acting on both end portions F ₁ in the width direction Q of the film F is increased, and the film F is more reliably pulled outward and is easily disposed immediately below the pair of treading wheels 32.

In the multi-work machine M ₁ of the first embodiment described above, a pair of elastic bars B are pierced at both ends F ₁ in the width direction Q of the film F, and the tension T of each elastic bar B is applied to both ends F _{1 of the} film F. In this configuration, both end portions F ₁ of the film F in a floating state are surely disposed immediately below the pair of treading pressure wheels 32. As a result, when the multi-work machine M ₁ is grounded to the forming start end portion 49a of the reed R adjacent to the reed R where the multi-work has been completed, both ends F _{1 in} the width direction Q of the film F are surely paired with a pair of stepping pressures. It is arranged directly under the wheel 32. However, in order to dispose both end portions F ₁ in the width direction Q of the film F directly below the pair of treading pressure wheels 32, means other than piercing the pair of elastic bars B may be used. For example, as in the multi-work machine M ₂ of the second embodiment shown in FIG. 13, the tip ends of a pair of bar members 53 extending from the pair of tread wheel support rods 37 to the position immediately after the corresponding tread wheel 32. A gripping member 55 such as a clip is attached to the portion via a tension spring 54, and both end portions F _{1 in} the width direction Q of the film F are arranged immediately below the pair of treading pressure wheels 32, so that the gripping member 55 The form which lifts the both ends F1 of the width direction Q of the film F hold | gripped by ( ₁₎ may be sufficient. It is a multi-task machine M ₂ in this embodiment, since the feeding end F ₂ of the film F are lifted by a pair of gripping members 55, multi-operating machine the feeding end the rising state of M ₂ F ₂ There is no risk that the wind will be caught forward by the wind from the rear. Further, when the multi-work machine M ₂ is lowered at the forming start end portion 49a of the adjacent saddle R, both end portions F _{1 in} the width direction Q of the film F are disposed immediately below the pair of treading wheels 32, and the adjacent saddle There will be no hindrance to multi-work in R. The film F immediately after being pressed by the pair of pedaling wheels 32 is covered with a pair of earthing rings 39, and the tensile force of the bar material 53 and the tension spring 54 causes the gripping member 55 to act on the film F covered . When the gripping force is exceeded, each gripping member 55 naturally comes off from the feeding end F _{2 of the} film F. For this reason, as in the multi-work machine M ₁ of the first embodiment, an assistant is unnecessary, so that the multi-work can be performed only by one driver and without the driver getting off the driver's seat. It can be carried out.

Is a perspective view from the rear of the multi-working machine M ₁ of the first embodiment of the present invention. FIG. 3 is a side view in which a part of the multi-work machine M ₁ connected to the tractor E is broken. It is also a plan view. It is a back view similarly. FIG. 6 is a perspective view of a ridge forming plate 23. It is a side view of the state where the treading wheel support rod 37 is rotated and arranged vertically. Multi working machine M ₁ is a schematic plan view of a state in which pivoting. (A) is a schematic plan view of the multi-work machine M ₁ arranged at the molding end portion 46 of the flange R, and (B) is a schematic side view of (A). (A) is a schematic plan view of the state in which the multi-work machine M ₁ is raised, and (b) is a schematic side view of (a). (B) is a schematic plan view of a state in which lowers the multi working machine M ₁ in adjacent ridge R, (b) is a schematic side view of (b). (B) is a schematic plan view of a state in which advancing the multi-working machine M ₁ in adjacent ridge R, (b) is a schematic side view of (b). (A) is a schematic plan view of a state in which the pair of elastic bars B of the multi-work machine M ₁ has come out of the film F, and (B) is a schematic side view of (A). (A) is a schematic plan view of the state in which the multi-work machine M ₂ of the second embodiment is raised, and (b) is a schematic side view of (a).

B: Elastic bar
F: Film
F ₁ : both ends in the width direction of the film
F ₂ : Film feeding end
K: Frame M ₁ , M ₂ : Multi working machine
Q: Width direction
R: 畦
R ₁ : Top surface of the ridge
R ₂ : Both hems of the collar W ₁ , W ₂ : Mounting interval (interval) of the elastic bar
T ', T: Tension (elastic restoring force)
3: Rotary device
15: Film roll
16: Compression spring (brake torque)
23: 畦 molded board
32: Pressure wheel
39: Covering ring (covering tool)
40: tip
46: Molding end
49a: Molding start end
55: Holding member

Claims (7)

A film roll having both ends rotatably supported by the frame in a state where a predetermined brake torque is applied;
A straw molding plate disposed immediately after the rotary device to mold the soil softened by the rotary device into a straw shape;
A pair of left and right treading wheels that are driven to rotate by stepping forward so that both ends in the width direction of the film covering the entire upper surface of the ridge formed by the heel-forming plate do not move,
A pair of earth covering tools for covering the both ends in the width direction of the stepped film,
A multi-work machine for covering the entire surface of the ridge with the film fed out by rotating the film roll by the driven rotation of each treading wheel;
A pair of left and right elastic bars supported in a cantilevered state from the frame to the rear at a predetermined interval along the width direction of the collar,
By cutting the film drawn out at the forming end of the ridge, the feeding end of the film remaining in a floating state on the film roll side is prevented from being caught on the front rotary device side. The end portions of the elastic bars are pierced at both ends in the width direction of the end portions in a bent state, and the both ends in the width direction of the feeding end portions are moved back and forth by the elastic restoring force of the elastic bars due to the bends. A multi-work machine characterized in that it is configured to apply tension along. Using the multi-work machine according to claim 1, the transfer end of the film is prevented from being caught on the rotary device side in front of the multi-work machine when moving to the adjacent work, and the forming start end of the adjacent work A multi-work method that allows the film to be covered without any hindrance on the entire upper surface of the ridge formed by the ridge-forming plate in
Multi-work in a state where each elastic bar is bent at the molding end of the scissors and the leading end is pierced into the feeding end of the film, and tension is applied to the feeding end at least in the front-rear direction of the multi-work machine. Raise the machine and turn
When the multi-work machine is lowered at the forming start end of the adjacent rod, and each elastic bar is bent and advanced while being pierced at both ends in the width direction of the feeding end of the film, the width of the feeding end of the film is increased. As both ends are stepped on by each treading wheel, both ends in the width direction of the feeding end of the film are covered with a pair of earthenware, and the feeding end of the film becomes stationary relative to the ground surface, The multi-working method characterized in that the elastic bar in a bent state is gradually restored to the original linear shape, and the tip of the elastic bar naturally comes off from the feeding end of the film during the restoration. . The pair of elastic bars is bent at the front end in a state where the elastic bar is moved by a predetermined length toward the center side in the width direction with respect to the original position supported in a cantilevered state toward the rear by the frame. The multi-working method according to claim 2, wherein the film is pierced at a feeding end portion of the film. The pair of elastic bars are supported by the frame so that a gap is widened from a support end toward a free end in an original position where the pair of elastic bars is supported in a cantilevered state toward the rear by the frame. The multi-operation method according to claim 2 or 3. 5. The pair of elastic bars are supported by an upper end portion of a tread wheel support rod having a tread wheel attached to a lower end portion and rotatably supported by the frame. A multi-working method according to any one of the above. A film roll having both ends rotatably supported by the frame in a state where a predetermined brake torque is applied;
A straw molding plate disposed immediately after the rotary device to mold the soil softened by the rotary device into a straw shape;
A pair of left and right treading wheels that follow and rotate while stepping on both ends in the width direction of the film covering the entire upper surface of the ridge formed by the heel-forming plate;
A pair of earth covering tools for covering both ends in the width direction of the film pressed by the pair of depression wheels;
A holding member for holding both ends in the width direction of the film that is supported in a cantilevered state from the frame at a predetermined interval along the width direction of the ridge and cut at the molding end portion of the ridge And a pair of left and right support bars attached to the tip,
Using a multi-work machine for covering the entire surface of the reed by rotating the film roll by the driven rotation of each treading wheel, when the film is transferred to the adjacent reed, the film unwinding end is multi- It is a multi-working method that prevents the film from being caught on the rotary device side in front of the work machine and allows the film to be covered without any trouble on the entire upper surface of the ridge formed by the ridge forming plate at the molding start end of the adjacent ridge. There,
With the gripping members attached to the pair of support bars at the molding end of the scissors, the multi-working machine is lifted by gripping the film with both ends in the width direction of the film being placed directly below the pair of treading wheels. Let it turn,
When the multi-work machine is lowered at the forming start end of the adjacent rod and each gripping member is advanced while holding both ends in the width direction of the feeding end of the film, both ends in the width direction of the feeding end of the film are with the trampling trampling wheel, both ends in the width direction of the feeding end portion of the film is being multi-work is started cover soil by said pair of cover soil tool,
The multi-work machine advances so that the pulling force of the support bar becomes larger than the gripping force of the gripping member with respect to the feeding end portion of the film, and the gripping of the gripping member is released. Work method. The multi-working method according to claim 6, wherein the gripping member is attached to a distal end portion of the support bar via a tension spring.

Images