JP2007124980A - Sheet laying working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sheet laying working machine capable of accurately laying a sheet on a ditch formed by plow ridge. <P>SOLUTION: This sheet laying working machine comprises setting a crawler running gear 9 which is obtained by connecting a crawler 22 between a drive wheel 23 and a follower wheel 26 in a tensioned state, on a management working machine 2 to which a sheet laying apparatus 6 which lays a sheet 7 by a sheet laying working part 5 on a ditch 8 which is obtained by ridge forming plow soil plowed by a plow part 3 by a ditch forming part 4, and supporting the shaft of the crawler running gear 9 freely swingably and rotatably, centering a rotating supporting point X in a longitudinal direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a sheet laying work machine for laying a sheet on a groove and a groove shoulder formed on the ground.

  Conventionally, a tilling device is attached to a management work machine with a rubber handle on the axle that protrudes from the bottom to the right and left from the bottom of the transmission case. As shown in Patent Document 1, it is known that a vertical forming plate to be formed and a multi-device that covers a formed ridge with a sheet (waste paper film) covered to form a cultivation floor such as vegetables. is there.

In addition, using a management work machine, a concave groove having a depth of about 20 cm and a width of about 60 cm is formed in the field, and a sheet (root-proof water-permeable sheet) is laid in the groove, and then the tillage soil is refilled on the sheet. As shown in Patent Document 2, a means for forming a crop cultivation floor of a rhizosphere-suppressed cultivation method suitable for cultivating vegetables, tomatoes, melons, etc. by putting the necessary fertilizer and leveling the surface is known. It is.
Japanese Patent Laid-Open No. 9-140213 JP-A-10-136787

In the multi-device shown in the above-mentioned patent document 1, generally, in a field of a hard ground that has not been plowed, the tiller is cultivated by a cultivating unit while the machine body is moved backward, and the cultivated soil is formed into a convex ridge with a vertical forming plate. In addition, the sheet is covered with the sheet, and the crop cultivation floor in which the sheet is laid in the groove as shown in Patent Document 2 cannot be formed.
Therefore, the above-mentioned multi-device is changed to, for example, a ridged forming plate, a cultivated soil plate for cultivating cultivated soil to form grooves, and the sheet covering portion is laid along the groove shape of the grooves. It is conceivable to change to a structure and configure a sheet cultivating work machine dedicated to crop cultivation floors that lays a sheet in the groove.

However, the above-mentioned crop cultivation floor effectively performs soil disinfection to prevent pests and damages on the ground where the entire field has been previously cultivated, especially when melons are cultivated continuously in a house. And sheet laying work. For this reason, the above-described sheet laying work machine has to run the sheet laying work by running on the already cultivated soft soil ground.
Accordingly, when the management work machine travels on the above-mentioned soft ground by the running wheels (wheels) of the rubber tires, the machine body is pitched or slips greatly by the uneven cultivated ground, so that it is mounted on the management work machine. Long sheet laying devices in the front-rear direction bounce, and the straight lineability is impaired and it is easy to meander, the depth and inclination of the groove bottom fluctuate greatly, and the sheet is laid with wrinkles and looseness. is expected.
In addition, if the cultivated soil is soft, there may be problems such as the side surfaces of the formed grooves and the groove shoulders on both sides of the grooves collapse.

  In order to solve the above-mentioned problems, the sheet laying work machine according to the present invention firstly has a cultivated soil cultivated by the cultivating unit 3 in a groove 8 formed by cultivating the cultivated soil in the groove forming unit 4, A crawler traveling device 9 is provided in which a sheet laying device 6 for laying a sheet 7 to be fed is mounted on the management work machine 2 and a crawler 22 is stretched between a drive wheel 23 and a driven wheel 26 on the management work machine 2. It is characterized by providing.

  Secondly, the crawler traveling device 9 is pivotally supported around the pivot point X in the left-right direction so as to be pivotable.

  Thirdly, the drive wheel 23 is attached to the axle 15 of the management work machine 2 and the crawler frame 25 is pivotally supported so as to be swingable. The crawler frame 25 is opposite to the seat laying device 6 side in the front-rear direction. The axle 15 is configured to be a pivot fulcrum X of the crawler traveling device 9 by extending toward the wheel and pivotally supporting the driven wheel 26.

  Fourthly, the sheet laying device 6 is mounted on the rear side in the working direction of the management work machine 2 and is fed from the sheet laying working portion 5 to the groove 8 and the groove shoulder portion 8a formed by cultivating the soil in the groove forming portion 4. In addition to laying the seat 7, crawler travel devices 9, 9 are provided on the left and right sides of the management work machine 2, and a groove shoulder 8 a is formed at the travel position of the crawler travel device 9.

The sheet laying work machine according to the first aspect of the present invention stably supports the management work machine 2 and the sheet laying apparatus 6 with the crawler travel device 9 having a wide grounding surface. It is possible to perform traveling while suppressing pitching, bounce of the sheet laying device 6 and the like, increasing the leveling accuracy of the groove bottom, and efficiently performing groove formation and sheet laying work.
In addition, the sheet laying work machine according to the second aspect of the present invention is configured such that the crawler traveling device 9 swings and rotates following the unevenness of the ground, for example, even on a ground with many unevennesses. It is possible to prevent the forward / backward tilt as much as possible, increase the groove forming accuracy by the sheet laying device 6 and smoothly perform the sheet laying operation.
Further, the sheet laying work machine according to the invention of claim 3 can make the crawler traveling device 9 swing and turn with a relatively simple configuration, and even if it is the management work machine 2 having the crawler traveling device 9, The weight construction sheet laying device 6 can be mounted as close as possible to the work machine 2, and the sheet laying work machine can be compactly integrated to improve the stability of the center of gravity.
Further, in the sheet laying work machine according to the fourth aspect of the present invention, the crawler traveling device 9 steps the uneven ground of the portion where the groove shoulder portion 8a is formed in advance and receives a leveling action. The side surface of the groove 8 or the groove shoulder portion 8a can be prevented from being deformed during the formation, and the sheet laying operation on the groove 8 and the groove shoulder portion 8a by the sheet laying device 6 can be performed accurately and smoothly.

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing the overall configuration of the sheet laying work machine 1. FIG. 2 is a perspective view showing a state in which a sheet laying device 6 including a tilling portion 3, a groove forming portion 4, and a sheet laying work portion 5 is attached to the management work machine 2. FIG. 3 is a work perspective view showing a state in which the sheet 7 is mounted on the sheet laying device 6 and laid in the groove 8. FIG. 4 is a side view showing another embodiment of the crawler traveling device 9 attached to the management work machine 2. FIG. 5 is a plan view showing a mounting structure of the crawler traveling device 9 of FIG.

The sheet laying work machine 1 detachably attaches and supports the groove forming part 4 and the sheet laying work part 5 of the sheet laying apparatus 6 to the tiller part 3 that is detachably attached and supported to the hitch 10 of the management work machine 2. It has a configuration.
The management work machine 2 includes a transmission case 13 having a hitch 10 on the rear side in the traveling direction and a body frame 12 on which the engine 11 is mounted on the front side in the traveling direction, and a shaft support projecting left and right at the lower part of the transmission case 13. 1 and the crawler travel devices 9 and 9 having the structure described later provided on the drive shafts 15 and 15 and the transmission case 13, the grip and the grip are positioned in the forward direction as shown in FIG. It is configured to include a handle 16 for walking operation that is installed so as to be able to be reversed and rotated when positioned forward in the traveling direction, a shift lever 17 for shifting operation, and the like.

  The engine 11 is input to the transmission case 13 via a transmission mechanism 19 such as a belt transmission means, and the transmission case 13 drives the crawler travel devices 9 and 9 from axles 15 and 15 that are pivotally supported on both sides of the lower portion. Input transmission is performed from the transmission case 20 to the rotary transmission case 21 of the tillage device 3.

The crawler traveling device 9 includes an endless belt-like crawler 22 in which a plurality of lug-like protrusions are formed on the surface and left and right cored bar protrusions are provided on the inner peripheral surface, and a large-diameter drive provided on the axle 15 of the transmission case 13. A wheel 23, a crawler frame 25 that is pivotably pivoted on the axle 15, and extends toward the front in the traveling direction (the side opposite to the sheet laying device 6 side described later); It consists of a driven wheel 26 provided on a driven shaft 26a pivotally supported at the front.
That is, the crawler traveling device 9 is pivotally supported on the axle 15 so as to be swingable and pivotable about a pivot point X (axle 15) in the left-right direction.
The crawler frame 25 has a mandrel guide 27 inserted between the left and right mandrel protrusions to prevent crawler disengagement and has an adjustment mechanism for adjusting the driven wheel 26 back and forth. 23 and the crawler 22 wound around the driven wheel 26 can be properly stretched.

Further, the crawler frame 25 is provided with a stopper 29 for swinging and turning restriction near the front of the middle part, and the left and right crawler travel devices 9 follow the unevenness of the ground and each center around the axle 15 via the crawler frame 25. When swinging and rotating independently, the stopper 29 comes into contact with the body frame 12 and restricts the rotation of each crawler traveling device 9 by more than a predetermined amount, thereby performing traveling while suppressing large tilting of the body. ing.
The stopper 29 of the crawler frame 25 is also used when an operator pushes down the handle 16 when moving over a saddle or the like and the body frame 12 rotates downward via the transmission case 13 with the axle 15 as a fulcrum. It is possible to restrict the downward rotation of the airframe in the same manner.

  In addition, a groove shoulder forming portion made of a side plate of the earth plate 40, a shoulder forming plate 41, and the like provided in the sheet laying device 6 to be described later is positioned at a substantially straight rear position of the left and right crawler traveling devices 9, 9. Accordingly, as shown by a one-dot chain line B in FIG. 3, the left and right groove shoulder portions 8a and 8a formed by the groove forming portion 4 of the sheet laying device 6 are respectively traces where the left and right crawler traveling devices 9 and 9 have traveled. It is comprised so that it may be formed.

Next, the sheet laying device 6 will be described. First, the tilling unit 3 has the rotary transmission case 21 attached and fixed to the middle part of the tilling body frame 30 connected to the hitch 10 provided at the rear of the management work machine 2 in the traveling direction. On the outer periphery of the projecting rotary shafts 31, 31, a rotary portion 35 is formed by projecting a plurality of long groove portion tilling claws 32 and a plurality of short groove shoulder tilling claws 33 toward the inner side and the outer side.
Moreover, the tilling device 3 covers the upper part and the side of the rotary part 35 with the rotary cover 30a provided in the tilling main body frame 30 like the conventional one.
Further, the tilling device 3 is provided with attachment portions 36 and 37 for attaching each working portion including attachment holes and fixtures in the front-rear direction behind the tiller body frame 30.

  The groove portion tilling claw 32 can cultivate the groove 8 for laying the sheet 7 within a distance between the crawler travel devices 9 and 9 to a predetermined width and depth. Further, the groove shoulder portion tilling claws 33 are formed short on the outside of the groove portion tilling claws 32, so that the uncultivated groove shoulder portions 8 a can be shallowly cultivated on both sides of the groove 8. At this time, the shoulder-cultivated claw 33 is re-cultivated together with the shoulder portion 8a along with the shoulder portion-cultivated soil scattered and deposited on the shoulder portion 8a. Therefore, the surface layer of the groove shoulder 8a is uniformly cultivated and leveled to a certain height, so that large unevenness and wrinkles are prevented from being laid on the laid sheet 7, and the inner surface of the sheet 7 is cultivated. The raised groove shoulder 8a can be brought into close contact with the raised groove shoulder 8a.

Next, the groove forming portion 4 will be described with reference to FIGS. The groove forming portion 4 includes a culture plate 40 formed in an inverted U shape by connecting side plates that form the side walls of the groove 8 on both sides of the front plate equal in width to the groove 8 in plan view, The left and right side plates are configured by projecting shoulder forming plates 41 for leveling and forming the cultivated soil of the groove shoulder portions 8a.
The groove forming portion 4 can be attached to the tilling device 3 by inserting and fixing an attachment rod 42 erected from the inner frame of the culture plate 40 into the attachment portion 36.

  As a result, the groove forming unit 4 forms a rectangular cross-section groove 8 by cultivating the cultivated soil cultivated by the groove cultivating claws 32 of the rotary unit 35 to the side of the grooving plate 40, and the shoulder forming plate 41 is the shoulder portion. The soil raised by the piled tillage soil and the cultivating soil plate 40 is leveled from above, and the groove shoulder portion 8a can be formed beautifully.

Next, the sheet laying work unit 5 will be described. The seat laying work unit 5 is inserted into and fixed to a horizontal mounting bar 45 mounted and supported by a mounting rod 42 inserted into the mounting unit 36. The left and right support frames 46 and 46 are inserted and fixed so that the mounting width can be adjusted. The support frames 47 that are inserted into the attachment portion 37 from above and are attached and supported are extended rearward.
The support frames 46, 46 can be provided with a rotating shaft support 50 in the middle in the front-rear direction, and can be inverted and supported in the retracted posture as indicated by the arrow A in FIG.

  On the left and right support frames 46, 46, a pair of sheet support portions 51, 51 for supporting the cores on both sides of the sheet 7 wound in a roll shape, and the sheet 7 to be fed out are rolled to the groove shoulder portions 8a on both sides. By inserting the feeding roller 52 and the sheet 7 supported by the feeding roller 52 as shown in FIG. 3 in the rear into the groove shoulder 8a, the sheet 7 is folded into the ground. A pair of left and right sheet folding members 53 to be folded and a cover ring 55 for covering the soil by scraping soil from the outside on the folded side of the folded sheet 7 are attached.

Note that the sheet folding member 53 and the cover ring 55 can be switched to the retracted position forward and upward by the support frame 46 on the rear side with the pivot shaft support portion 50 as a fulcrum.
The sheet support portions 51 and 51 are provided at both ends of a gate-type support rod 51a that is attached and supported so as to connect the left and right support frames 46 and 46, and the feeding roller roller 52 is pivoted at both ends of the support rod 51a. It has a configuration in which both ends of the supporting gate-shaped support rod 51b are pivotally supported.
The sheet folding member 53 has a shape in which an elastic wire is smoothly bent rearward, and the free end portion is positioned above the groove shoulder 8a, so that the feeding rolling roller 52 can move the groove to the groove shoulder 8a. The middle part of both sides of the sheet 7 to be laid can be slidably guided toward the lower side and pushed into the shoulder pile tilled soil and bent.

At the rear end of the support frame 47, the sheet 7 fed immediately below the feeding roller 52 is pressed against both corners (groove corners) of the groove 8, and the middle part is flattened into the groove 8. A pair of left and right laying wheels 56 to be laid are provided by a bifurcated mounting rod 57 so that the mounting position can be adjusted.
As a result, the right and left laying wheels 56, 56 are securely fed to the both corners in the groove 8 immediately below the feeding roller roller 52, with the sheet 7 in a state where the sheet 7 is rolled and supported by the groove shoulders 8 a on both sides. Can be positioned. As a result, both corners of the sheet 7 are positioned and supported in the groove 8, so that the sheet 7 is prevented from being displaced by the sheet folding member 53, and the sheet 7 is lifted and wrinkled. Can be performed reliably.

Next, the sheet laying work by the sheet laying work machine 1 configured as described above will be described. This seat laying work machine 1 has a rear part of a management work machine 2 in which a crawler traveling device 9 is mounted on left and right axles 15 of a transmission case 13 having a handle 16 that is extended so that a grip part is in front. A sheet laying device 6 is mounted by attaching the tillage unit 3 side of the heavy structure via the hitch 10.
As a result, the sheet laying device 6 compactly installs the tilling unit 3, the groove forming unit 4, and the sheet laying working unit 5 behind the management work machine 2 with a rigid structure that is long in the front-rear direction. It is possible to perform the sheet laying work by running the management work machine 2 while the operator grips the handle 16 with both hands from the front of the machine body (forward in the traveling direction).
At this time, the operator controls the aircraft while facing the back of the aircraft.

The sheet laying device 6 cultivates the position of the groove 8 and the groove shoulder 8a by the rotation of the groove cultivating claw 32 and the groove shoulder cultivating claw 33 of the cultivating device 3, and the cultivating plate 40 of the groove forming unit 4 removes the cultivated soil. While cultivating and forming the grooves 8, the shoulder forming plate 41 pushes and forms the groove shoulders 8a on both sides.
Next, the sheet laying work section 5 feeds the sheet 7 from the sheet support section 51 to the groove 8 and the groove shoulder 8 a via the feeding roller roller 52, and the fed sheet 7 is a corner of the groove 8 due to the rolling contact of the laying ring 56. Positioning and fixing into the groove shoulder 8a by the sheet folding member 53, and then the earth covering ring 55 covers the upper part of the folding portion of the sheet 7, and the folding ends on both sides of the sheet 7 are fixed. The weight of the cover is added and closed to secure the both ends of the sheet 7 securely. In addition, by folding both sides of the sheet 7, a wide working path can be formed between the sheets 7 of adjacent crop cultivation floors without walking on the end of the sheet 7.

As described above, the seat laying work machine 1 that performs the seat laying work of the seat 7 has the seat laying device 6 mounted on the rear side of the management work machine 2, and the traveling portion of the management work machine 2 is connected to the axles on both sides of the transmission case 13. 15 is provided with a drive wheel 23 and a crawler frame 25, and a crawler traveling device 9 in which a crawler 22 is stretched around the drive wheel 23 and a driven wheel 26 pivotally supported on the rear side of the crawler frame 25. Even on the soft and uneven ground cultivated in advance, large pitching and tilting of the management work machine 2 can be prevented and the sheet laying operation by the sheet laying device 6 can be performed smoothly.
That is, in the crawler traveling device 9, the crawler 22 stretched between the drive wheel 23 and the driven wheel 26 has a wide grounding surface and stably supports the machine body. The sheet laying operation can be performed efficiently and reliably by preventing the penetration and slipping and running while suppressing the pitching of the machine body due to unevenness and the like and the bounce of the sheet laying device 6.

Further, since the crawler traveling device 9 is pivotally supported by the management work machine 2 so as to be swingable and pivotable about the pivot point X in the left-right direction, for example, even on a ground with many irregularities, it follows the irregularities on the ground. As the crawler traveling device 9 swings and pivots, large pitching and forward / backward tilt of the management work machine 2 are prevented as much as possible, and the groove forming accuracy by the sheet laying device 6 is enhanced and the sheet laying operation is performed smoothly. Can do.
In addition, the drive wheel 23 is attached to the axle 15, and the crawler frame 25 is pivotally supported on the axle 15 so that the axle 15 can be pivoted. Thus, the axle 15 becomes the rotation fulcrum X of the crawler traveling device 9 and the crawler frame 25. Is extended toward the opposite side (front side) of the sheet laying device 6 side in the front-rear direction, and the driven wheel 26 is pivotally supported by the extended portion, thereby comparing the swing rotation of the crawler traveling device 9 In addition, the management work machine 2 having the crawler travel device 9 can be mounted with the heavy-weight sheet laying device 6 as close as possible to the management work machine 2, so that the sheet laying work can be performed. The machine can be gathered compactly and the center of gravity stability can be improved.

Further, the left and right crawler traveling devices 9 are mounted and supported on the left and right axles 15 of the transmission case 13 via a crawler frame 25 so as to be swingable and swingable independently. , The driven wheel 26 side is moved up and down to enable smooth running while suppressing the tilting of the aircraft to the left and right.
Accordingly, the groove forming portion 4 can prevent the occurrence of inclination and unevenness and can form a groove with high leveling accuracy on the bottom surface of the groove, and can satisfactorily lay the sheet 7 in the groove 8 and the groove shoulder portion 8a by preventing generation of wrinkles. Therefore, it is possible to make a cultivation bed suitable for crop cultivation without concentrating and stagnation of a solution such as water or fertilizer on the inclined part or the concave part of the basket.

Further, since the groove shoulder portions 8a and 8a are formed at the traveling position of each crawler traveling device 9, the traveling crawler traveling device 9 steps the ground at the groove shoulder portion 8a in advance to level the unevenness. However, since the plowing portion 3 and the groove forming portion 4 form the groove 8 and the groove shoulder portion 8a, the side surface of the groove 8 and the shoulder portion of the groove shoulder portion 8a can be prevented from being beautifully formed. At the same time, the sheet laying operation on the groove 8 and the groove shoulder 8a by the sheet laying operation portion 5 can be performed smoothly and accurately. In particular, as described above, the crawler traveling device 9 preliminarily leveles and flattens the ground surface of the portion where the groove shoulder portion 8a is formed, so that there is little unevenness on the finished surface of the groove shoulder portion 8a formed later. Therefore, the sheet 7 can be satisfactorily laid on the upper surface of the groove shoulder 8a.
In addition, even if it provides instead of the crawler traveling device 9 with a traveling device composed of wheels such as rubber tires, if the groove shoulder portions 8a and 8a are formed at the traveling position of the traveling device composed of the wheels, the traveling device. Thus, the ground at the position of the groove shoulder 8a can be stepped and solidified in advance, and the side surface of the groove 8 and the shoulder of the groove shoulder 8a can be prevented from being collapsed, and the laying operation of the seat 7 can be performed with high accuracy.

In addition, each crawler traveling device 9 has a configuration in which the crawler frame 25 is provided with a stopper 29 that comes into contact with a part of the management work machine 2 and regulates the amount of pivoting rotation. When swinging and rotating more than a predetermined amount, the stopper 29 provided on the crawler frame 25 comes into contact with a part of the airframe, and the swinging and rotating can be restricted.
Therefore, the stopper 29 on the side where the driven wheel 26 side of one of the crawler traveling devices 9 moves up and down due to the unevenness of the ground on the left and right, and the aircraft body is largely inclined comes into contact with a part of the aircraft frame 12 and the like. The crawler traveling device 9 can be prevented from swinging and tilting of the machine body can be easily prevented. As a result, the management work machine 2 can smoothly travel while preventing the body from being tilted greatly, and the burden on the operator to hold the handle 16 and perform the tilt prevention operation is reduced. There is a feature that it can be easily performed.

Next, another embodiment of the crawler traveling device 9 shown in FIGS. 4 and 5 will be described. In addition, description is abbreviate | omitted about the structure and effect | action similar to the crawler traveling apparatus 9 of the said embodiment.
The crawler traveling device 9 in the illustrated example is provided with a driven wheel shaft 26 a that supports the driven wheel 26 on the rear side and the front side of the crawler frame 25 and a driven wheel shaft 60 a that supports the driven wheel 60. A driving wheel 23 is disposed between the driven wheels 60 in the vicinity of the driven wheels 60, and a crawler 22 is stretched between these three wheels, and the crawler is between the driven wheel 26 and the grounded side of the driven wheels 60. A mandrel guide 27 suspended from the frame 25 is provided.

  In this configuration, the crawler frame 25 has a metal portion 62 that fits into the axle 15 on a mounting bracket 61 that stands upright on the rear upper portion, and can be contacted with a part of the lower portion of the fuselage frame 12 on the front upper portion. A rod-like stopper 29 is extended inward. Then, the drive wheel 23 is attached and fixed to the axle 15 outside the metal portion 62 in a state where the metal portion 62 of the mounting bracket is fitted to the axle 15. As a result, the crawler traveling device 9 can rotate the axle 15 so that the driving wheel 23 can mesh with the crawler 22, and the front-rear distance between the driven wheel 26 and the driven wheel 60 without increasing the diameter of the driving wheel 23. And the contact surface of the crawler 22 can be increased.

In the crawler traveling device 9, the crawler frame 25 can swing and rotate the driven wheel 26 and the driven wheel 60 integrally with the axle 15 (the rotation fulcrum X) as a fulcrum. Accordingly, the left and right crawler travel devices 9 can swing and rotate independently with the axle 15 as a fulcrum and to a predetermined position where the stopper 29 contacts the body frame 12. When the handle 16 is pushed down, the transmission case 13 and the machine frame 12 can be rotated backward and downward to a position where the machine frame 12 contacts the stopper 29.
Reference numeral 63 denotes a stopper provided on the rear side of the crawler frame 25 for restricting the rearward downward rotation position by the same action as the stopper 29.

It is a side view which shows typically the structure of the sheet | seat laying work machine concerning this invention. It is a perspective view which shows the detailed structure of FIG. It is a perspective view which shows the sheet | seat laying operation | work by the sheet | seat laying work machine of FIG. It is a side view which shows the structure of another embodiment of the crawler traveling apparatus with which the axle of a management work machine is mounted | worn. FIG. 5 is a cross-sectional plan view illustrating a configuration of the crawler traveling device of FIG. 4.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet laying work machine 2 Management work machine 3 Plowing part 4 Groove forming part 5 Sheet laying work part 6 Sheet laying apparatus 7 Sheet 8 Groove 8a Groove shoulder part 9 Crawler traveling apparatus 10 Hitch 12 Airframe frame 13 Transmission case 15 Axle 16 Handle 23 Drive wheel 25 Crawler frame 26 Driven wheel X Rotation fulcrum

Claims (4)

  Sheet laying device for laying the sheet (7) fed out from the sheet laying working part (5) in the groove (8) formed by cultivating the cultivated soil cultivated by the cultivating part (3) in the groove forming part (4) (6) is mounted on the management work machine (2), and the crawler traveling is performed by stretching the crawler (22) between the drive wheel (23) and the driven wheel (26) on the management work machine (2). A sheet laying work machine provided with a device (9).   2. The seat laying work machine according to claim 1, wherein the crawler traveling device (9) is pivotally supported so as to be swingable and rotatable about a rotation fulcrum (X) in the left-right direction.   A drive wheel (23) is attached to the axle (15) of the management work machine (2), and the crawler frame (25) is pivotally supported so as to be swingable and rotatable. (6) It extends toward the opposite side to the side, and by supporting the driven wheel (26) of the extended portion, the axle (15) is pivoted (X) of the crawler traveling device (9). The sheet laying work machine according to claim 2 configured as described above.   A sheet laying device (6) is mounted on the rear side in the working direction of the management work machine (2), and the sheet is laid on the groove (8) and the groove shoulder (8a) formed by cultivating in the groove forming part (4). The sheet (7) fed out from the working unit (5) is laid, and the crawler traveling devices (9) and (9) are provided on the left and right of the management work machine (2), and the crawler traveling device (9) is placed at the traveling position. The sheet laying work machine according to claim 1, 2 or 3 configured to form a groove shoulder (8a).

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