JP2019083784A - Channel formation device - Google Patents

Abstract

To provide a channel formation device in which, a rice husk introduction guide member has a collapse expansion part for collapsing and expanding an aperture angle edge part formed by a ground level and puncture mark groove for forming an expansion slope part on the aperture angle edge part, so that, the aperture angle edge part formed by the ground level and the puncture mark groove is collapsed and expanded by the collapse expansion part and is formed into an expansion slope part, so that, by existence of the expansion slope part, the rice husks can be guided and introduced to a puncture mark groove and vertical port part.SOLUTION: A rice husk feeding mechanism 25 comprises: a rice husk container 26 capable of storing a rice husk C; a feeding path member 27 having a falling feeding path 27a capable of falling and feeding the rice husks from the rice husk container to a puncture mark groove S and a vertical port path T, and has a rice husk introduction guide member 30 capable of introducing and guiding the rice husks fallen from the feeding path member to the puncture mark groove and the vertical port path, and the rice husk introduction guide member has a collapse expansion part 31 for collapsing and expanding an aperture angle edge part Q formed by a ground level M and inside face of the puncture mark groove for forming an expansion slope part Qon the aperture angle edge part.SELECTED DRAWING: Figure 16

Description

  The present invention relates to, for example, a culvert forming apparatus for forming a culvert in a field soil of a paddy field or a field.

  Conventionally, as a culvert forming apparatus of this type, a machine frame is connected to a traveling airframe by a connection mechanism, and a penetration beam is vertically installed in the machine frame so as to be freely rockingly movable in a traveling direction by a rocking mechanism, and a lower portion of the penetration beam A bullet capable of forming a culvert in the field soil is disposed, and the side surface of the penetration mark groove formed extending vertically in the field soil is expanded by the penetration beam at a position behind the penetration beam in the traveling direction And an expansion mechanism for expanding the expansion member is provided, and rice husk supply capable of feeding rice husks into the penetration trace groove and the longitudinal mouth path is provided. A feeding mechanism is provided, and the chaff feeding mechanism has a chaff container capable of containing the chaff, a dropping and feeding path capable of dropping and feeding chaff from the chaff container into the penetration trace groove and the longitudinal passage. A structure having a feed path member is known.

  Thus, the paddy field, etc. consists of the surface plow layer, the lower plow layer, and the lower plow layer, and penetrates the penetration beam into the plow layer, plow layer and plow layer, A striation is formed by breaking a layer, and a culvert is formed in the core soil layer below by a bullet to form an excavated pit, and an extension member is formed to extend in the vertical direction in the field soil and is formed A longitudinal mouth is formed which is open on the ground surface by expanding the side, and the chaff in the chaff container is fed through the feed path member of the chaff feeding mechanism to the penetration groove and the longitudinal mouth The chaff is stuffed into the penetration groove and the longitudinal passage, and the presence of the chaff causes the entry of mud on the ground surface from the opening of the penetration groove and the passage and the narrowing of the inner surface of the longitudinal passage. It is possible to prevent the mouth from closing the penetration groove and the longitudinal passage, and the water on the ground surface is an air gap between the penetration groove and the opening of the longitudinal passage from the chaff It leads to culvert, can maintain good drainage and ventilation of the field, improves drainage, water management, dry storage of fields, activation of microbial reproduction, deep part of roots of paddy rice etc. Growth can be improved.

Japanese Patent Application Laid-Open No. 2017-6037

  However, in the case of the above-mentioned conventional structure, since the above-mentioned penetration mark groove and the above-mentioned longitudinal mouth are opened with a relatively small cross-sectional area on the ground surface of the field, And it may be difficult to be reliably introduced into the penetration groove and the longitudinal entrance which fall from the section, and therefore, the obstruction suppressing effect of the penetration groove and the longitudinal entrance due to the existence of the chaff The above-mentioned pits and the opening to the ground surface of the above-mentioned longitudinal route are blocked by the mud on the surface of the field, and the distance from the surface of the field to the culvert may be relatively long. It has the disadvantage of reducing the drainage and ventilation of the field.

  The present invention is intended to solve such a problem. Among the present inventions, according to the first aspect of the present invention, a machine frame is connected to a traveling machine body by a connection mechanism, and the machine frame is pierced. A beam is vertically installed so as to be able to shake in the direction of movement by a rocking mechanism, and a projectile body capable of forming a culvert in the field soil is disposed below the penetrating beam, and the traveling direction backward position of the penetrating beam The expansion beam is provided with an expansion member capable of forming a longitudinal mouth open to the ground surface by expanding the side surface of the penetration mark groove formed to extend in the vertical direction in the field soil by the penetration beam. An expanding mechanism to be operated is provided, and a chasm feeding mechanism capable of feeding chaff into the vertical chute is provided, and the chaff feeding mechanism comprises a chaff container capable of containing the chaff. Feeding the rice husk from the rice husk container into the penetration groove and the feeding path capable of dropping and feeding into the longitudinal passage A chaff introduction guide member is provided which can guide the chaff falling from the feed path member into the penetration trace groove and the longitudinal opening path, and the chaff introduction guide member is formed with the ground surface and the perforations. A culvert forming apparatus characterized in that a crush spread portion capable of forming a spread slope portion is provided at the opening corner edge by crushing and spreading the opening corner edge formed with the inner surface of the entrance groove. is there.

  The invention according to claim 2 is characterized in that the feeding path member is formed in a substantially semicircular arc shape in cross section, and the invention according to claim 3 according to the present invention is characterized in that Is formed of a plate material having a thickness that can be inserted into the penetration mark groove, and the crushed and expanded portion is formed of a sloped plate surface capable of expanding and forming the expanded slope portion gradually toward the rearward position in the traveling direction. It is a feature.

  The invention according to claim 4 is characterized in that the rice husk container is provided with a drop opening communicating with the drop feeding passage of the feed passage member, and the opening / closing adjustment mechanism capable of opening and closing the drop opening is provided. The invention according to claim 5 is characterized in that an agitating member capable of agitating rice husk is provided in the rice husk container so as to be horizontally rotatable.

  In the present invention, as described above, according to the invention as set forth in claim 1, the penetration beam is rocked in the traveling direction as the traveling vehicle advances, and penetrates into the field soil to form a penetration trace groove. And the expanding member continuously formed a culvert by the projectile in the rear position of the penetration of the rod, and the expanding member disposed at the rear position in the traveling direction of the penetrating beam is expanded by the expanding mechanism, and the field earth soil by the penetrating beam. A chasm can be fed into the above-mentioned longitudinal mouth path by forming a longitudinal groove-like longitudinal mouth path which is extended to the ground surface and extends a penetration trace groove formed to extend in the vertical direction in the inside. Since the feeding mechanism is provided, the chaff can be fed to the penetration trace groove and the longitudinal mouth path by the chaff feeding mechanism, and the chaff is fed by feeding the chaff to the penetration trace groove and the longitudinal mouth path. Rice husk is stuffed into the entrance groove and the longitudinal entrance, and the presence of rice husk causes the surface of the ground from the opening of the penetration groove and the entrance. It is possible to suppress the closure of the penetration mark groove and the vertical entrance road by the approach of soil and the mud perforation on the inner surface of the vertical entrance road, and the water on the ground surface is from the opening of the penetration mark groove and the vertical entrance road It will lead to culverts through the gaps between rice husks, and it is possible to maintain good drainage and ventilation of the field, improve drainage, water management, dry storage of fields, activation of microbial reproduction, paddy rice And the rice husk feeding mechanism, the rice husk container capable of containing the rice husk, and the chaff from the rice husk container can be Since the feed path member has a drop feed path which can be dropped and fed into the vertical opening path, the chaff in the rice husk container can be inserted into the penetration trace groove and the vertical opening by the drop feed path of the feed path member. The chaff can be dropped and fed reliably into the passage, and the chaff falling from the feeding passage member can be inserted into the above-mentioned penetration groove and Since the rice husk introduction guide member which can be introduced and guided in the vertical mouth passage is provided, the rice husk falling from the feeding path member is surely inserted in the penetration trace groove and the vertical mouth passage by the rice husk introduction guide member. Introductory falling can be guided, and further the opening corner edge formed by the ground surface and the inner side surface of the penetration mark groove is crushed and expanded in the rice husk introduction guiding member, and the spreading slope portion is opened in the opening corner edge Since the formable crushed and expanded portion is provided, the opening corner edge formed by the ground surface and the inner side surface of the penetration mark groove is crushed and expanded by the crushed and expanded portion to be formed into the expanded slope portion, By the presence of the spread slope portion, it is possible to reliably introduce and guide the chaff into the penetration groove and the longitudinal opening.

  Further, according to the second aspect of the invention, since the feeding path member is formed in a substantially semicircular arc shape in cross section, it is formed in a gutter shape in a substantially semicircular arc shape in cross section, compared with a tubular one. A jamming phenomenon of rice husk is suppressed, and it can be reliably dropped and fed into the above-mentioned penetration trace groove and the above-mentioned longitudinal opening path by a drop feeding path having a substantially semicircular cross section, and the invention according to claim 3 The rice husk introduction and guide member is made of a plate material having a thickness that can be inserted into the penetration mark groove, and the crushed and spread portion gradually spreads the spread slope portion toward the rearward position in the traveling direction. Since the possible inclined plate surface is formed, the expanded slope portion can be reliably formed by the crushed and expanded portion, and the presence of the expanded slope portion ensures that the rice husk is reliably formed in the penetration trace groove and the vertical opening path. Introduction can be guided fall.

  In the invention according to claim 4, the rice husk container is provided with a drop port communicating with the drop feed path of the feed path member, and an open / close adjusting mechanism capable of opening and closing the drop port is provided. Therefore, it is possible to adjust the feed, stop and feed amount of rice husk from the drop opening by the opening and closing adjustment mechanism, and the feed amount of rice husk falling into the penetration trace groove and the vertical opening passage. Can be adjusted to correspond to the working progress speed of the running body, the size of the penetration groove and the longitudinal entrance, and in the invention according to claim 5, Since the stirring member capable of stirring the rice husk is provided so as to be horizontally rotatable, the rice husk in the rice husk container is smoothly dropped from the dropping port portion into the penetration groove and the vertical passage via the feeding path member. be able to.

FIG. 1 is an overall side view of an embodiment of the present invention. It is an expanded side view of the example of an embodiment of the present invention. It is an enlarged plan view of the embodiment of the present invention. It is an enlarged rear elevation view of an example of an embodiment of the present invention. It is a partially expanded side sectional view of the embodiment of the present invention. FIG. 2 is a partial front sectional view of the embodiment of the present invention. It is a fragmentary sectional side view of the example of an embodiment of the present invention. FIG. 2 is a partial front sectional view of the embodiment of the present invention. It is a partial plane sectional view of the example of an embodiment of the present invention. It is a partial plane sectional view of the example of an embodiment of the present invention. It is a partial enlarged plan sectional view of the embodiment of the present invention. It is a partially expanded side sectional view of the embodiment of the present invention. It is an explanation plane sectional view of an example of an embodiment of the present invention. It is a partially expanded side view of the embodiment of the present invention. FIG. 2 is a partial rear cross-sectional view of the embodiment of the present invention. FIG. 1 is a partial perspective view of an embodiment of the present invention. It is a description top view of the example of an embodiment of the present invention.

  1 to 17 show an embodiment of the present invention, in which 1 is a traveling body, in which a tractor is used, and as shown in FIGS. 1 and 3, a three-point link type is provided at the rear of the traveling body 1 The machine frame 3 is vertically movably connected by the connecting mechanism 2 of FIG.

  In this case, as shown in FIGS. 1, 2 and 3, the connection mechanism 2 has left and right lower links 2a and 2a, an upper link 2b, a lifting link 2c and 2c, and a hydraulic arm 2d at the rear of the traveling machine body 1. A three-point link mechanism consisting of 2d is provided, the machine frame 3 is connected to the traveling machine body 1 by the three-point link mechanism, and the machine frame 3 can be vertically moved by the upward and downward swinging of the hydraulic arms 2d and 2d of the three-point link mechanism. Provided in the

  Reference numeral 4 denotes a penetration beam and 5 denotes a rocking mechanism. In this case, as shown in FIG. 2 and FIG. 5, the middle part of the rocking arm 6 is pivotally attached to the machine frame 3 by a fulcrum shaft 7 At the same time, the spindle 8 is horizontally mounted rotatably on the machine frame 3 by bearings 8a and 8a, the penetration beam 4 is attached to the rear in the advancing direction of the swing arm 6, and the spindle 8 and the power takeoff shaft 1a of the tractor are universal joints 9, and the eccentric wheel mechanism 10 is interposed between the main shaft 8 and the forward direction forward portion of the swing arm 6. In this case, as the eccentric wheel mechanism 10 as shown in FIG. 7, FIG. 8 and FIG. An eccentric shaft portion 10a is formed between the bearings 8a and 8a of the main shaft 8, the central axis of the eccentric shaft portion 10a is eccentric with respect to the rotation axis of the main shaft 8 by an eccentricity ε, and the eccentric shaft portion 10a is connected to the connecting member 10b. The upper bearing 10c is fitted, and the base shaft 6a of the swing arm 6 is fitted in the lower bearing 10d of the connection member 10b. The rocking arm 6 is vertically guided by the guide rolls 6b and 6b and the guide pieces 3a and 3a, and the rocking arm 6 is rocked up and down about the fulcrum shaft 7 through the eccentric wheel mechanism 10 by the rotation of the main shaft 8. The vibrating beam 6 is attached to the rear end of the swing arm 6 in the vertical direction, and the casing 11 is attached to the lower end of the penetrating beam 4 and the bullet-like bullet 13 is formed by the hook-like connecting member 12. Are connected.

  As the traveling body 1 progresses, the penetrating beam 4 is rocked in the traveling direction by the rocking mechanism 5 and penetrates into the soil W in the field to form the penetrating groove S and the bullet body 13. The underdrain H will be formed continuously.

  14 is an expanding member, and 15 is an expanding mechanism. In this case, as shown in FIG. 2, this expanding member 14 is disposed at a longitudinal passage forming position D as a backward position in the traveling direction of the penetrating beam 4 and It is possible to extend the side surface of the penetration mark groove S which is formed extending in the vertical direction of the soil W by the incoming beam 4 so as to form a longitudinal opening T opened in the ground surface M, and this expanding mechanism 15 10 and 13, the extension member 14 is moved from the non-expanded position K toward the back in the direction of travel to the side in the direction of travel by .theta. = Approximately 80.degree. Forcible extension operation is intermittently performed at this extension position G.

  In this case, as the expansion mechanism 15, as shown in FIG. 2, a bearing cylinder 16 is vertically provided at the rear of the machine frame 3, and a shaft 17 is vertically provided rotatably in the bearing cylinder 16; Plate-shaped bearing pieces 18 and 18 narrower than the penetration groove S are formed at the front and rear of the bearing cylinder 16, and the upper portion of the expansion member 14 is attached to the lower end of the shaft 17. A lower portion of the lower portion 14 is rotatably supported by bearing pins 18 and 18 by support pins 18a, and a vane-like projection 14a is formed on the extension member 14 so as to extend vertically, and in this case, as shown in FIG. As shown in FIG. 4, an intermittent expansion mechanism 15a is used as the expansion mechanism 15. In this case, the reduction mechanism 19 is attached to the machine frame 3 and the input shaft 19a of the reduction mechanism 19 and the main shaft 8 are connected by a joint 8b. Attach the pivoting arm 20 to the output shaft 19b of the reduction gear mechanism 19 and press the pivoting arm 20 Implanted Le 21, the depressible engagement claw portion 22 is horizontally projected by pressing roll 21 on the upper end portion of the shaft-like member 17.

  Thus, as shown in FIGS. 2 and 10, the output shaft 19b of the speed reduction mechanism 19 is rotated by the rotation of the main shaft 8, and the pivoting arm 20 is horizontally pivoted in the direction of the arrow by the rotation of the output shaft 19b. The roll 21 engages and pushes the engaging claw member 22. By this pushing motion, the expansion member 14 is forcibly rotated by a predetermined angle vertically, and as a result, as shown in FIG. 10 and FIG. When the pressing roller 21 is extended and is further moved away from the engaging claw member 22, the plate-like protruding body 14 a of the expanding member 14 is in contact with the side surface of the penetration trace groove S of the penetration beam 4. In contact with it, it returns and pivots, and the projecting body 14a of the expansion member 14 is intermittently reciprocated by a predetermined angle, and the penetration beam groove S formed by extending vertically in the field soil W by the penetration beam 4 Form a vertical mouth T that opens on the ground surface M by expanding one side of the

  Reference numeral 23 denotes a pregroove cut body, and mounting pieces 23a and 23a are vertically installed on the machine frame 3 as shown in FIG. 6, and the pregroove cut body 23 is rotatably mounted on the mounting pieces 23a and 23a by an axle 23b. The pre-striking groove F is formed at the forward position in the traveling direction of the penetration beam 4.

  In this case, as shown in FIGS. 2 and 4, in this case, the mounting arms 24a and 24a are disposed at the left and right side positions of the machine frame 3 so as to be adjustable in height by the height adjustment mechanism 24b. The rolling bodies 24 are grounded to the ground surface M, and the stable running of the machine frame 3 and the setting height of the underdrain H from the ground surface M are set.

  Reference numeral 25 denotes a rice husk feeding mechanism, which is capable of feeding rice husk C into the above-mentioned penetration trace groove S and the above-mentioned longitudinal opening T, and in this case, the rice husk as shown in FIG. The feeding mechanism 25 has a drop feeding path 27a capable of dropping and feeding the chaff C from the chaff container 26 capable of containing the chaff C and the chaff C from the chaff container 26 into the penetration trace groove S and the longitudinal passage T. In this case, the feed path member 27 is formed of a synthetic resin having flexibility, is bent in a substantially semicircular arc shape in cross section, and is formed in a so-called raindrop shape.

  In this case, as shown in FIG. 2, FIG. 3, FIG. 10 and FIG. 11, the rice husk container 26 is formed in a cylindrical container shape, and a disk-like mounting plate 25a is attached to the rear of the machine frame 3 in the traveling direction. The rice husk container 26 is attached to the body 25a, the upper opening of the rice husk container 26 is an insertion opening 26a into which the rice husk C can be inserted, the falling opening 26b is formed on the bottom, and the mounting edge piece at the edge of the falling opening 26b 26c is formed, the upper end portion of the feed path member 27 is fixedly connected to the attachment edge piece 26c, and the output shaft 19b of the reduction mechanism 19 is disposed so as to protrude at the center of the rice husk container 26, and the rice husk is attached to the output shaft 19b. The stirring member 28 capable of stirring C is fixed and the stirring member 28 is horizontally rotatably provided in the rice husk container 26.

  In this case, as shown in FIG. 10, FIG. 11 and FIG. 12, a fulcrum pin 29a is provided vertically on the mounting plate 25a, and a middle portion of the open / close adjustment plate 29b is mounted on the fulcrum pin 29a. A spring member 29c is pivotally mounted so that the opening and closing adjustment plate 29b can be horizontally horizontally pivoted, and a spring member 29c that elastically presses the opening and closing adjustment plate 29b to the drop opening 26b is mounted on the fulcrum pin 29a. An arc-shaped locking plate 29e having a locking groove 29d is fixed at three positions in the open position, and the handle 29f at the base of the opening / closing adjustment plate 29b is pressed and pivoted against the spring member 29c. By locking, the drop port 26b is provided in the closed position, the intermediate position and the open position so as to be freely opened and closed.

  Reference numeral 30 is a rice husk introduction guide member, which can introduce rice husk C falling from the lower end portion of the feed path member 27 into the penetration trace groove S and the vertical opening passage T so that guidance can be made in this case As shown in FIG. 4, FIG. 5, FIG. 13, FIG. 14, FIG. 15, FIG. 16, it is attached to a plate-like bearing piece 18 projectingly formed at the rear of the bearing cylinder 16 A bent portion B bent outward is formed on the upper portion of the rice husk introduction guide member 30 made of a plate material and formed of a plate thickness that can be inserted into the penetration mark groove S, and the lower end of the feeding path member 27 An introduction guide slope 30a capable of introducing and guiding rice husk C falling from the portion into the above-mentioned penetration trace groove S and the above-mentioned longitudinal opening T is formed.

31 is a crushed and expanded portion which is provided on the rice husk introduction and guide member 30 and is formed by crushing and expanding an opening corner edge Q formed by the ground surface M and the inner surface of the penetration mark groove S to form an opening corner edge part Q formable so provided a widening inclined surface portion Q ₁ in this case, 13, 14, 15, as shown in FIG. 16, the crushing expanding portion 31 proceeds the upper part of the chaff introduction guide member 30 from gradually widening inclined surface portion Q ₁ permits expansion forming gradient plate surface 31a toward the traveling direction rearward position to form a bent the bent portion B outward to the rear edge of the triangular toward the aft It is configured. That is, in this case, the inner surface on the penetration trace groove S side of the bent portion B at the upper part of the crushed and expanded portion 31 introduces the chaff C into the penetration trace groove S and the longitudinal opening T so as to introduce and guide it. is formed on the guide slope 30a, widening form gradually widening inclined surface portion Q ₁ according to external surface opposite infested trace groove S of the upper bent portion B of the pinch expanding portion 31 toward the moving direction rearward position Of the upper part of the rice husk introduction guide member 30 is the introduction guide slope 30a of the inner surface and the slope plate surface 31a as the crushing spread part 31 of the outer surface Is also used.

  Since this embodiment has the above-described configuration, as shown in FIG. 2, the penetration beam 4 is rocked in the traveling direction as the traveling airframe 1 travels and penetrates W in the field soil, and the penetration trace groove The expanding member 14 is continuously expanded by the expanding mechanism 15 by forming the culvert H continuously by the projectile body 13 of the insertion rear position of the housing 11 while forming S and forming the underside H in the advancing direction of the insertion beam 4. It operates and extends the penetration trace groove S formed extending in the vertical direction of the field soil W by the penetration beam 4 to form a vertical groove-like longitudinal opening T opened in the ground surface M. .

  In this case, since the chaff feeding mechanism 25 capable of feeding chaff C is provided in the above-mentioned longitudinal passage T, chaff C is fed by the chaff feeding mechanism 25 to the penetration trace groove S and the longitudinal passage T The chaff C is fed to the chasing groove S and the longitudinal gutter T so that the chaff C is stuffed into the chaff C and the gutter T, and the chaff C is used for perforation. It is suppressed that the intrusion trace groove S and the vertical entrance passage T are blocked by the approach of the mud on the ground surface M from the opening of the entrance groove S and the vertical entrance passage T or the mud narrowing of the inner surface of the vertical entrance passage T The water on the ground surface M will reach the underdrain H through the opening between the chasm groove S and the longitudinal channel T through the gap between the chaff C, and the drainage and air permeability of the field can be well maintained. It is possible to improve drainage, improve water management, dry the fields, activate microbial reproduction, and improve the growth of roots of paddy rice etc. deep.

In this case, as shown in FIG. 4 and FIG. 5, the chaff feeding mechanism 25 is a chaff container 26 capable of containing the chaff C, and chaff C from the chaff container 26 as the penetration groove S and the longitudinal passage. Since the feed path member 27 has a drop feed path 27a that can drop and feed into T, chaff C in the rice husk container 26 is inserted into the above-mentioned penetration groove S by the drop feed path 27a of the feed path member 27. And the chaff C which can be reliably dropped and fed into the longitudinal passage T and which is dropped from the feeding path member 27 as shown in FIG. 14, FIG. 15 and FIG. Since the rice husk introduction guide member 30 which can be introduced and guided to the S and the longitudinal opening passage T is provided, the chaff C falling from the feeding path member 27 falls on the introduction guide slope 30 a of the rice husk introduction guide member 30 and collides. The rice husk introduction guide member 30 secures the rice husk C to the above-mentioned penetration trace groove S and the above-mentioned longitudinal opening T. Introductory falling can be guided, and furthermore, the opening corner edge Q formed by the ground surface M and the inner side surface of the penetration mark groove S is crushed and expanded on the rice husk introduction guiding member 30 to open the opening corner edge Q since formed by providing crush expanding portion 31 capable of forming a widening inclined surface portion Q _1, the opening angle edge Q formed by the inner surface of the ground surface M and infested trace groove S is crushed by the crushing expanding portion 31 is expanded is formed in the expanded inclined surface portion Q _1, the chaff C by the presence of the expansion slant portion Q ₁ can be reliably introduced drop guided into the infested traces grooves S and the longitudinal opening path T.

Further, in this case, as shown in FIG. 10, since the feeding path member 27 is formed in a substantially semicircular arc shape in cross section, it is formed in a gutter shape having a substantially semicircular arc shape in cross section. Can be reliably dropped and fed into the penetration trace groove S and the longitudinal passage T by the drop feeding path 27a having a substantially semicircular cross section. In this case, as shown in FIG. As shown in FIG. 16, the rice husk introduction guide member 30 is made of a plate material having a thickness that can be inserted into the penetration trace groove S, and the crushed and expanded portion 31 gradually expands toward the advancing direction backward position. since the parts Q ₁ from expanding can be formed gradient plate surface 31a, by the crushing expanding portion 31 can be reliably formed expanding slope portion Q _1, chaff C by the presence of the expansion slant portion Q ₁ Can be introduced to the above-mentioned penetration mark groove S and the above-mentioned longitudinal mouth T reliably

  Further, in this case, as shown in FIG. 3, FIG. 4 and FIG. 5, a drop port 26b communicating with the drop feed path 27a of the feed path member 27 is formed in the chaff container 26 and the drop port 26b is opened and closed. Since the adjustable opening / closing adjustment mechanism 29 is provided, the feeding / stopping of the rice husk C from the drop port 26 b can be adjusted by the opening / closing adjustment mechanism 29, and the penetration trace groove S The drop feeding amount of rice husk C into the longitudinal mouth T can be adjusted, and it can correspond to the working progress speed of the traveling body 1, the size of the penetration mark groove S and the longitudinal mouth T, Also, in this case, since the stirring member 28 capable of stirring the chaff C is provided in the chaff container 26 so as to be horizontally rotatable, the chaff C in the chaff container 26 is fed from the dropping port 26b through the feeding path member 27. Thus, it can be smoothly dropped into the penetration mark groove S and the longitudinal opening path T.

  In this case, since the pre-groove cutting body 23 capable of cutting the pre-grooves F on the ground surface M is provided at the forward position in the traveling direction of the penetrating beam 4, the pre-groove cutting bodies 23 advance while rotating together Then, the pre-grooves F are cut on the ground surface M, and after the pre-grooves F, the penetration beam 4 is rocked in the traveling direction while penetrating and forms the penetration trace grooves S, so the penetration marks The formation resistance of the groove S will be reduced, and the forming workability of the penetration mark groove S will be improved.

  Further, in this case, the rolling frames 24 and 24 capable of rolling the boat scene are provided on the machine frame 3 so as to be adjustable in height. In this case, the mounting arms 24 a and 24 a are adjusted in height on both left and right sides of the machine frame 3. The height of the machine frame 3 can be adjusted by grounding the wheel bodies 24 and 24 on the ground surface M such as a rice field because the wheel bodies 24 and 24 are provided on the mounting arms 24 a and 24 a by means of the mechanism 24 b. The stable running and setting of the formation height from the ground surface M of the underdrain H will be planned.

  The present invention is not limited to the above embodiment, and the traveling body 1, the connecting mechanism 2, the shaking mechanism 5, the expanding member 14, the expanding mechanism 15, the rice husk feeding mechanism 25, the opening / closing adjustment mechanism 29, the rice husk introduction. The structures and the like of the guide member 30 and the crushed and expanded portion 31 are appropriately changed and designed.

  As described above, the intended purpose can be sufficiently achieved.

W Field soil S Penetration groove D H Ground surface M Longitudinal route C Rice hull Q Opening corner edge Q ₁ Spreading slope 1 Traveling airframe 2 Linking mechanism 3 Machine frame 4 Penetration beam 5 Shaking mechanism 13 Bullet Body 14 Expansion member 15 Expansion mechanism 25 Rice husk feeding mechanism 26 Rice husk container 26b Falling port 27 Feeding path member 27a Falling and feeding path 28 Stirring member 29 Opening and closing adjustment mechanism 30 Rice husk introduction guide member 31 Crushing and expanding part 31a Gradient plate surface

Claims (5)

  The machine frame is connected to the traveling machine body by the connection mechanism, and the penetration beam is vertically installed in the machine frame so as to be freely rockingly movable in the traveling direction by the rocking mechanism, and an underdrain is formed in the field soil under the penetration beam. The projectile body is disposed, and the side surface of the penetration trace formed in the vertical direction in the field soil is extended by the penetration beam at the back position in the traveling direction of the penetration beam to open on the ground surface An expanding mechanism for expanding the expanding member, and a chaff feeding mechanism capable of feeding chaff into the penetration groove and the longitudinal chute. The rice husk feeding mechanism comprises a rice husk container capable of containing the rice husk, and a feeding having a drop feeding path which can feed the rice husk from the rice husk container into the penetration trace groove and the vertical opening passage. It consists of a path member, and can introduce and guide the chaff falling from the above-mentioned feed path member to the above-mentioned penetration trace groove and the above-mentioned longitudinal mouth path. An introduction guide member is provided, and the opening corner edge formed by the ground surface and the inner side surface of the penetration trace groove is crushed and expanded on the rice husk introduction guide member to form an expanding slope portion at the opening corner edge An culvert forming apparatus characterized in that the squeezed and expanded portion is provided.   The apparatus for forming a culvert according to claim 1, wherein the feeding path member is formed in a substantially semicircular arc shape in cross section.   The rice husk introduction and guide member is made of a plate material having a thickness that can be inserted into the penetration mark groove, and the crush and spread portion gradually extends and forms the spread slope portion toward the rearward position in the traveling direction. 3. The apparatus for forming a culvert according to claim 1 or 2, characterized in that it comprises a surface.   4. The rice husk container is provided with a drop port communicating with the drop feed path of the feed path member, and an open / close adjusting mechanism capable of opening / closing the drop port is provided. The device for forming a culvert according to any one of the above.   The culm forming device according to any one of claims 1 to 4, wherein an agitating member capable of agitating chaff is provided horizontally rotatably in the chaff container.