JP5266576B2 - Underdrain formation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a culvert-forming implement including an extending member capable of intermittently repeating extending turning and returning turning, and forming each vertical opening passage opening to the ground surface in a scattered state. <P>SOLUTION: The culvert-forming implement is obtained by connecting a machine frame 3 to a traveling machine body 1 with a connecting mechanism 2; vertically installing a boring beam 4 in the machine frame so as to freely perform swaying operation in the forward direction with a swaying mechanism 5; disposing a forming body 14 capable of forming a culvert H in soil W in the lower part of the boring beam; disposing the extending member 15 capable of extending one lateral face of a boring trace ditch S extending and formed in the vertical direction in the soil with the boring beam, and forming the vertical opening passage T opening to the ground surface at the rear position in the forward direction of the boring beam; installing an intermittent extending mechanism 16 for intermittently and forcedly extending and turning the extending member from an unextended position K facing to the rear in the forward direction to an extended position G facing to the lateral side in the forward direction; and installing a forced returning mechanism 25 for forcedly returning and turning the extending member from the extended position facing to the lateral side in the forward direction to the unextended position facing to the rear in the forward direction. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

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

  Conventionally, as this type of culvert formation device, a machine frame is connected to a traveling machine body by a connecting mechanism, and a penetration beam is vertically installed on the machine frame so as to be freely swingable in a moving direction by a shaking mechanism, and is placed below the penetration beam. The thing of the structure formed by arrange | positioning the formation body which can form a culvert in the soil is known.

Paddy fields and the like are composed of a surface layer, a lower layer, and a lower core soil layer, and a penetration beam is penetrated into the tiller layer, the core layer and the core soil layer to break the tiller. A culvert will be formed in the core soil layer below it by the formed body.
Japanese Utility Model Publication No. 61-80602 Japanese Patent No. 4061900

  However, in the case of the above-described conventional structure, immediately after the penetration operation of the penetration beam, the penetration trace groove formed in the vertical direction in the soil is maintained at a width corresponding to the thickness of the penetration beam. With the progress, both opposing surfaces of the penetration trace groove close and close, which has the disadvantage that the drainage and breathability inherent in the underdrain may be reduced.

SUMMARY OF THE INVENTION The present invention aims to solve such inconveniences, and in the invention according to claim 1, the machine frame is connected to the traveling machine body by a connecting mechanism, and the machine frame is provided. the rocking oscillation operation freely and Tate設the traveling direction by Yurafu mechanism infested beams, culvert arranged capable of forming formed body in the soil at the bottom of the perforations incoming beam, the traveling direction of the infested beam An expansion member capable of forming a vertical opening that opens to the ground surface by extending one side surface of a penetration groove formed by extending in the vertical direction in the soil by the penetration beam at a rear position; Provided is an intermittent expansion mechanism that intermittently forcibly expands and rotates the expansion member from the non-expanded position in the rearward direction of the travel direction to the expansion position in the direction of the travel direction. it is provided a forced return mechanism for forcibly swings back to the non-expanded position of the rearward facing As the forcible return mechanism, the expansion member is provided on the machine frame so as to be pivotable in the vertical direction, and a turning arm is provided on the machine frame so as to be rotatable in a horizontal direction. There is provided a culvert forming device characterized in that a return engagement member that is pushed by is provided .

Further, an invention according to claim 2, wherein, as above Symbol intermittent expansion mechanism, provided with the extension member to the machine frame in a freely vertically about pivot provided freely horizontally pivoting the pivot arm in該機frame, said extension member And an expansion engagement member that is intermittently pushed by the horizontal rotation of the swivel arm. The invention according to claim 3 is characterized in that the expansion member is located above and below the soil. The invention comprises a shaft-like body extending in a direction and a blade-like projecting body, and the invention according to claim 4 is characterized in that the formation body is provided integrally below the penetration beam. It is characterized by being.

As described above, according to the first aspect of the present invention, the penetration beam penetrates into the soil while swinging in the traveling direction to form a penetration trace groove as the traveling body moves. In addition, the culvert is continuously formed by the formed body, and at this time, the expansion member disposed at the rear position in the traveling direction of the penetration beam is moved from the non-expanded position toward the rear in the traveling direction by the intermittent expansion mechanism. Forcible expansion rotation to the extended position of the direction, extending one side of the penetration groove formed by extending in the vertical direction in the soil to form a vertical opening that opens to the ground surface and the expansion member advances The forcible return rotation from the extended position in the direction side direction to the non-expanded position in the rearward direction of the traveling direction, the expansion member intermittently repeats the expansion rotation and return rotation, and is dotted with vertical openings that open to the ground surface. Can therefore be formed, and therefore, both pairs of penetration traces over time Plane vertical opening path is maintained even is closed narrows closer, by the presence of longitudinal opening path can be maintained satisfactorily drainage and breathable culvert and, as the forcible return mechanism, the The expansion member is provided on the machine frame so as to be pivotable in the vertical direction, the turning arm is provided on the machine frame so as to be horizontally rotatable, and the return engagement member is intermittently pushed by the horizontal rotation of the turning arm. Because it is provided, the expansion member after the expansion rotation can be reliably returned and rotated, and the penetration trace grooves formed by the penetration beam are spread and expanded in a scattered manner, so that the vertical opening is reliably formed. It is possible to form the vertical opening smoothly.

Further, in the invention described in claim 2, as the upper Symbol intermittent expansion mechanism, provided with the extension member to the machine frame in a freely vertically about pivot provided freely horizontally pivoting the pivot arm to the machine frame, expanded Since the member is provided with the expansion engagement member that is intermittently pushed by the horizontal rotation of the swivel arm, the expansion member can be reliably expanded and rotated, and the penetration trace groove formed by the penetration beam The vertical opening can be reliably formed by widening and spreading in a dotted manner, and in the invention according to claim 3 , the expansion member is an axial body and a blade extending vertically in the soil. Since it is composed of a plate-like protrusion, a fan-shaped vertical opening corresponding to the radius of the protrusion can be easily formed. In the invention according to claim 4 , the formation is Since it is integrally provided at the bottom of the penetration beam, it is possible to simplify the culvert formation structure by the formation body. That.

  1 to 13 show an embodiment of the present invention, FIGS. 1 to 11 show a first embodiment, and FIGS. 12 and 13 show a second embodiment.

  In the first embodiment shown in FIGS. 1 to 11, reference numeral 1 denotes a traveling machine body. In this case, a tractor is used, and the machine frame 3 can be moved up and down by a three-point link type connecting mechanism 2 at the rear part of the traveling machine body 1. Concatenated.

  4 is a penetrating beam, and 5 is a shaking mechanism. In this case, as shown in FIGS. 2, 3, 4, 6, and 7, the middle part of the swinging arm 6 is mounted on the machine frame 3 as a fulcrum shaft. 7, the main shaft 8 is pivotally mounted on the machine frame 3 by bearings 8a and 8a, and the power take-off shaft 9 of the traveling machine body 1 and the main shaft 8 are connected by a universal joint 10. An eccentric ring mechanism 11 is interposed between the swing arm 6 and the penetrating beam 4. That is, as the eccentric ring mechanism 11, an eccentric shaft portion 11 a is formed between the bearings 8 a and 8 a of the main shaft 8, and the eccentric shaft The upper bearing 11c of the connection member 11b is fitted into the portion 11a, the base shaft 6a of the swing arm 6 is inserted into the lower bearing 11d of the connection member 11b, and the swing arm 6 is connected to the guide rolls 6b and 6b and the guide piece. 3a and 3a are used for swinging up and down, and by rotating the spindle 8, a swinging arm is provided via an eccentric ring mechanism 11. Is pivoted up and down around the fulcrum shaft 7, the penetration beam 4 is mounted in the vertical direction on the rear end of the swing arm 6, and the tapered edge 4 a is formed at the front edge of the penetration beam 4. The casing 12 is attached to the lower part of the penetration beam 4 and a bullet-shaped formation body 14 is integrally provided by a bolt 13 at the lower part of the penetration beam 4.

  Thus, as the traveling machine body 1 advances, the penetration beam 4 oscillates in the advancing direction and penetrates into the soil W to form a penetration trace groove S and to form a rearward penetration position of the housing 12. The culvert H is continuously formed by the body 14.

  15 is an expansion member, and 16 is an intermittent expansion mechanism. The expansion member 15 is disposed at a position behind the penetration beam 4 in the traveling direction, and is formed to extend in the vertical direction of the soil W by the penetration beam 4. A longitudinal opening T that opens to the ground surface M by expanding one side surface of the penetration mark groove S is provided, and the intermittent expansion mechanism 16 moves the expansion member 15 from the non-expanded position K in the rearward direction of the traveling direction. In this case, it is configured to intermittently forcibly extend and rotate to the extended position G in the lateral direction swung about 45 degrees from the rearward direction of the traveling direction.

  In this case, as shown in FIGS. 2, 3 and 8, the intermittent expansion mechanism 16 has a bearing cylinder 17 vertically provided at the rear portion of the machine casing 3, and a shaft-like body 18 is rotated around the bearing cylinder 17 in the longitudinal direction. A bearing piece 19 is formed on the bearing cylinder 17, and the lower end portion of the shaft-like body 18 is rotatably supported by the bearing piece 19. An extension member 15 is formed by extending the body 15a so as to protrude vertically, and as the intermittent extension mechanism 16, in this case, the speed reduction mechanism 20 is attached to the machine casing 3, and the input shaft 20a and the main shaft of the speed reduction mechanism 20 are attached. 8 is connected by a joint 21, a turning arm 22 is attached to the output shaft 20 b of the speed reduction mechanism 20, a cam roll-like extension push roll 23 is planted on the turning arm 22, and an extension pusher is attached to the upper end of the shaft-like body 18. An expansion engagement member 24 that is pushed by the moving roll 23 is horizontally provided.

  Reference numeral 25 denotes a forced return mechanism. In this case, as shown in FIGS. 2, 3, and 8, a return push roll 26 in the form of a cam roll is installed on the revolving arm 22, and the return push mechanism is pushed to the upper end of the shaft 18. A return engagement member 27 pushed by the moving roll 26 is horizontally provided at a predetermined angle in a different direction with respect to the expansion pushing roll 23.

  Accordingly, the output shaft 20b of the speed reduction mechanism 20 is rotated by the rotation of the main shaft 8, and the turning arm 22 is horizontally turned by the rotation of the output shaft 20b. During this turning, as shown in FIG. The moving roll 23 engages and pushes the expansion engagement member 24, and by this pushing, the expansion member 15 is forcibly expanded and rotated from the non-expanded position K in the rearward direction to the extended position G in the forward direction. The extension member 15 expands one side surface of the penetration trace groove S to expand the vertical opening T opened to the ground surface M, and the extension push roll 23 is separated from the extension engagement member 24 by further rotation. Thus, the expansion member 15 becomes unconstrained, and the return push roll 26 of the forced return mechanism 25 engages and pushes the return engagement member 27 as shown in FIG. After the direction of travel from the extended position G The expansion member 15 is forcibly separated from the one side surface of the penetration mark groove S, and the return push roll 26 is separated from the return engagement member 27 by further rotation. Then, the expansion member 15 is in an unconstrained state, and the turning arm 22 continues to turn.

  Reference numeral 28 denotes a grooved disk, which is provided with projecting pieces 28a and 28a projecting from the machine frame 3 at the front position of the penetration beam 4, and the grooved disk 28 is inserted between the lower parts of the mounting pieces 28a and 28a by an axle 28b. It is attached so as to be rotatable, and is configured to form a penetration groove F at a front position in the traveling direction of the penetration beam 4.

  Reference numeral 29 denotes a wheel, and mounting arms 29a and 29a are arranged at both left and right positions of the machine casing 3 so that the height can be adjusted by height adjusting mechanisms 29b and 29b, and the wheel 29 is placed on the ground surface M such as a paddy surface. It is configured so that the machine frame 3 is stably run and the formation height from the surface of the underdrain H is set.

  Since the first embodiment of the present embodiment has the above-described configuration, the penetration beam 4 penetrates into the soil W while swinging in the traveling direction to form the penetration trace groove S as the traveling body 1 advances. At the same time, as shown in FIG. 11, the expansion member 14 arranged at the rear position in the traveling direction of the penetration beam is moved backward in the traveling direction by the intermittent expansion mechanism 16. Forcibly expanded and rotated from the non-expanded position K in the direction to the extended position G in the direction of the traveling direction to extend one side surface of the penetration mark groove S formed by extending in the vertical direction of the soil W to the ground surface. An opening vertical opening T is formed, and the expansion member 15 is forcibly returned from the expansion position G in the direction of travel to the non-expansion position K in the rearward direction of travel, and the expansion member 14 is intermittently rotated. And the return rotation is repeated, and the vertical path T opening to the ground surface is dotted. Therefore, even if both opposing surfaces of the penetration groove S close and close together with time, the vertical channel T is maintained, and the presence of the vertical channel T allows the underdrain H to drain. In addition, the air permeability can be kept good.

  Although the lower end of the vertical channel T is appropriately set, it is generally desirable that the vertical channel T is set at a position near the culvert that does not reach the culvert H, because the culvert H and the vertical channel T are in communication. This is because the soil on the inner surface of the vertical channel T may flow into the underdrain H and block the underdrain H.

  Further, in this case, as the forced return mechanism 25, the expansion member 15 is provided in the machine frame 3 so as to be rotatable in the vertical direction, the swing arm 22 is provided in the machine frame 3 so as to be rotatable in the horizontal direction, and the expansion member 15 is turned. Since the return engagement member 27 that is intermittently pushed by the horizontal rotation of the arm 22 is provided, the expansion member 15 after the expansion rotation can be reliably rotated back and formed by the penetration beam 4. It is possible to widen and expand the pierced trace grooves S in a dotted manner so that the vertical opening T can be reliably formed and the vertical opening T can be formed smoothly. As the mechanism 16, the expansion member 15 is provided on the machine casing 3 so as to be pivotable in the vertical direction, and the swing arm 22 is provided on the machine casing 3 so as to be pivotable horizontally. Since the expansion engaging member 24 that is pushed is provided, The member 15 can be reliably expanded and rotated, and the penetration trace grooves S formed by the penetration beam 4 can be widened and expanded in a scattered manner to form the vertical opening T reliably. In this case, since the expansion member 15 includes the shaft-like body 18 extending in the vertical direction of the soil W and the blade-like projection 15a, the fan-shaped vertical port T corresponding to the radius of the projection 15a can be easily formed. In this case, since the formation body 14 is provided integrally with the lower portion of the penetration beam 4, it is possible to simplify the culvert formation structure formed by the formation body 14.

  The second embodiment shown in FIGS. 12 and 13 shows another example structure. In this case, the rear portion of the swing arm 6 is pivotally attached to the machine frame 3 by a fulcrum shaft 7 and the main shaft 8 is mounted on the machine frame 3. Is rotatably mounted by a bearing 8a, the power take-off shaft 9 and the main shaft 8 of the traveling machine body 1 are connected by a universal joint 10, and an eccentric ring mechanism 11 is interposed between the swing arm 6 and the penetration beam 4. As an eccentric wheel mechanism 11, an eccentric shaft portion 11a is formed on the main shaft 8, a bearing 11c on the upper side of the connecting member 11b is fitted on the eccentric shaft portion 11a, and a lower bearing 11d on the connecting member 11b is mounted. A base shaft 6a of the swing arm 6 is inserted into the swing arm 6 and the swing arm 6 is guided to swing up and down by the guide rolls 6b and 6b and the guide pieces 3a and 3a. 6 is moved up and down around the fulcrum shaft 7, and the swing arm 6 The penetration beam 4 is attached to the end portion in the vertical direction, and the housing 12 is attached to the lower portion of the penetration beam 4 and the shell-shaped formed body 14 is integrally provided at the lower portion of the penetration beam 4 with the bolt 13. ing.

  Also in this second embodiment, the same effect as the first embodiment can be obtained, and the rear portion of the swing arm 6 is pivotally attached to the machine frame 3 by the fulcrum shaft 7 so as to freely swing. The length of the machine casing 3 can be reduced, thereby improving the running performance.

  The present invention is not limited to the above-described embodiment, and the expansion member 15, the intermittent expansion mechanism 16, the expansion engagement member 24, the forced return mechanism 25, the structure of the return engagement member, and the like are changed as appropriate. It is what is done.

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

1 is an overall side view of a first embodiment of the present invention. It is a partial side view of the first embodiment of the present invention. It is a fragmentary top view of the 1st example of an embodiment of the invention. It is a partial plane sectional view of the example of the 1st embodiment of the present invention. It is a partial side view of the first embodiment of the present invention. It is a partial expanded plane sectional view of the first embodiment of the present invention. It is a partial expansion longitudinal cross-sectional view of the example of 1st Embodiment of this invention. It is a fragmentary top view of the 1st example of an embodiment of the invention. It is a fragmentary top view of the 1st example of an embodiment of the invention. It is a fragmentary top view of the 1st example of an embodiment of the invention. It is a partial plane sectional view of the example of the 1st embodiment of the present invention. It is a fragmentary top view of the 2nd example of an embodiment of the invention. It is a fragmentary top sectional view of the 2nd example of an embodiment of the invention.

W Underground S Penetration groove H Underdrain M Ground surface T Longitudinal opening K Non-expanded position G Extended position 1 Traveling machine body 4 Penetration beam 5 Shaking mechanism 14 Forming body 15 Expansion member 15a Projection body 16 Intermittent expansion mechanism 22 Swivel arm 24 Expansion engagement member 25 Forced return mechanism 27 Return engagement member

Claims (4)

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 swingable in the traveling direction by the shaking mechanism, and a culvert can be formed in the soil below the penetration beam. A formed body is arranged, and one side surface of a penetration trace groove formed by extending in the vertical direction in the soil by the penetration beam is extended to a position behind the penetration direction of the penetration beam and opened to the ground surface. An expansion member capable of forming a vertical opening is provided, and an intermittent expansion mechanism is provided for intermittently forcibly expanding and rotating the expansion member from the non-expanded position in the rearward direction to the extended position in the forward direction. A forcible return mechanism is provided for forcibly returning the extension member from an extended position in the direction of travel to a non-expanded position facing backward in the direction of travel . As the forced return mechanism, the extension member is vertically mounted on the machine frame. It is provided so that it can rotate freely. The provided underdrain forming apparatus characterized by comprising providing a return engagement member is intermittently pushed by the horizontal rotation of the pivot arm to the expansion member. As the intermittent expansion mechanism, the expansion member is provided on the machine frame so as to be pivotable in the vertical direction, and a turning arm is provided on the machine frame so as to be rotatable in a horizontal direction. underdrain forming apparatus according to claim 1, characterized by being provided with extensions engaging member is pushed. 3. The culvert forming apparatus according to claim 1, wherein the expansion member comprises a shaft-like body extending in the vertical direction in the soil and a blade-like projection. The culvert forming apparatus according to any one of claims 1 to 3 , wherein the formed body is integrally provided at a lower portion of the penetration beam.

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