JP4061900B2 - Underdrain formation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a culvert forming apparatus used for forming a culvert in, for example, paddy field or soil of a field.
[0002]
[Prior art]
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. A structure in which bullets capable of forming underdrains are disposed in the soil is known.
[0003]
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 bullets.
[0004]
[Problems to be solved by the invention]
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 passage of time, both opposing surfaces of the penetration groove mark close and close together, which has the disadvantage that the original drainage and breathability of the underdrain may be reduced.
[0005]
[Means for Solving the Problems]
The present invention aims to solve such inconveniences. Among the present inventions, the invention according to claim 1 is that the machine frame is connected to the traveling machine body by a connecting mechanism, and the machine frame is penetrated. The beam is vertically arranged so as to be freely swingable in the traveling direction by a swinging mechanism, and a bullet body capable of forming a culvert in the soil is disposed below the penetrating 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 is disposed at the position. An expansion mechanism for expanding the member is provided, and as the expansion mechanism, the expansion member is provided so as to be able to rotate vertically by a predetermined angle , and the expansion member is forcibly rotated by a predetermined angle vertically in one direction. the cause intermittent expansion mechanism is provided, the intermittent expansion mechanism, horizontal pivot the pivot arm to該機frame Provided capacity is in the underdrain forming apparatus characterized by comprising providing engaging claw member is intermittently pushed by the horizontal rotation of said pivot arms to said expansion member.
[0006]
Further, a second aspect of the present invention, which is characterized by comprising providing a Mododo spring for returning Tatekai Ri turning back the extended member forced to the intermittent expansion mechanism, also claim In the invention described in item 3, the expansion member includes a protrusion that can expand one side surface of the penetration groove.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
1 to 12 show an embodiment of the present invention, FIGS. 1 to 10 show a first embodiment, and FIGS. 11 and 12 show a second embodiment.
[0008]
In the first embodiment shown in FIGS. 1 to 10, reference numeral 1 denotes a traveling machine body. In this case, a tractor is used, and a 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.
[0009]
4 is a penetrating beam, and 5 is a vibration mechanism. In this case, the middle part 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. Are rotatably mounted by bearings 8a and 8a, the power take-off shaft 9 of the traveling machine body 1 and the main shaft 8 are connected by a universal joint 10, and an eccentric wheel mechanism 11 is provided between the swing arm 6 and the penetration beam 4. In other words, as the eccentric ring mechanism 11, an eccentric shaft portion 11a is formed between the bearings 8a and 8a of the main shaft 8, and the bearing 11c on the upper side of the connecting member 11b is fitted to the eccentric shaft portion 11a to connect the eccentric shaft portion 11a. The base shaft 6a of the swing arm 6 is fitted into the lower bearing 11d of the member 11b, 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, and the eccentric wheel is rotated by the rotation of the main shaft 8. Up and down swinging of the swing arm 6 about the fulcrum shaft 7 through the mechanism 11 The penetrating beam 4 is attached to the rear end of the swing arm 6 in the vertical direction, the housing 12 is attached to the lower end of the penetrating beam 4, and the bullet-shaped bullet 14 is connected by the hook-shaped connecting member 13. Configured.
[0010]
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 a bullet at a position behind the penetration of the housing 12. The culvert H is continuously formed by the body 14.
[0011]
Reference numeral 15 denotes an expansion member, and reference numeral 16 denotes an expansion mechanism. The expansion member 15 is disposed at a rear position in the traveling direction of the penetration beam 4, 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 extending the penetration trace groove S is provided, and the expansion mechanism 16 is configured to expand the expansion member 15.
[0012]
In this case, a bearing cylinder 17 is provided vertically at the rear portion of the machine casing 3, a support shaft 18 is provided vertically on the bearing cylinder 17 so as to be rotatable in a vertical direction , and a bearing piece 19 is formed on the bearing cylinder 17. A lower end portion of the support shaft 18 is rotatably supported by a bearing piece 19, and a blade-like projecting body 15 a serving as an expansion member 15 is provided on the support shaft 18 so as to extend vertically. 16, an intermittent expansion mechanism 16 a is used. In this case, the speed reduction mechanism 20 is attached to the machine casing 3, the input shaft 20 a of the speed reduction mechanism 20 and the main shaft 8 are connected by a joint 21, and the output shaft 20 b of the speed reduction mechanism 20 is connected. And a rotation mechanism 20 d between the rotation axis 20 c, the revolving arm 22 is attached to the rotation axis 20 c, a push roll 23 is installed on the revolving arm 22, and the upper end of the support shaft 18 is pushed. An engaging claw member 24 that can be pressed by the roll 23 is horizontally projected. There.
[0013]
Accordingly, the rotation vertical axis 20c is rotated by the rotation of the main shaft 8, the turning arm 22 is horizontally rotated by the rotation of the rotation vertical axis 20c, and the push roll 23 engages and pushes the engagement claw member 24. expansion member 15 by the pressing is forcibly predetermined angle vertically around rotating, when this vertical opening path T is extended formed by, pressing roll 23 by further rotation is away from the engagement claw portion 24, extension member feather-shaped protrusion member 15a of 15 is restored rotated to return in contact with the side face of the infested trace groove S of infested beam 4, the engaging claw member 24 by the horizontal rotation of the pivot arm 22 is intermittently The expansion member 15 is intermittently forcibly rotated by a predetermined angle in one direction intermittently, and the ridge 15a is reciprocally rotated by a predetermined forward / reverse predetermined angle at a constant cycle. become.
[0014]
Reference numeral 25 denotes a grooved disk. A mounting piece 25a is suspended from the base of the penetration beam 4, and the grooved disk 25 is rotatably attached to the mounting piece 25a so that the penetration beam 4 moves forward in the traveling direction. The penetration groove F is formed while swinging.
[0015]
Reference numeral 26 denotes a wheel, and mounting arms 26a and 26a are disposed at both left and right positions of the machine casing 3 so that the height can be adjusted by a height adjusting mechanism 26b, and the wheel 26 is grounded on the ground surface M such as a paddy surface. In addition, it is configured so that the stable height of the machine frame 3 and the formation height from the surface of the culvert H can be set.
[0016]
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, the culvert H is continuously formed by the bullet 14 at the rearward penetration position of the casing 12, and at this time, as shown in FIG. 10, the expansion member disposed at the rearward position in the traveling direction of the penetration beam 4 as shown in FIG. 15 is expanded by the expansion mechanism 16, and a longitudinal groove-shaped longitudinal path T that opens to the ground surface M by expanding the penetration groove S formed by extending the vertical direction of the soil W by the penetration beam 4. Therefore, even when both opposing surfaces of the penetration groove mark S close and close together with time, the vertical channel T is maintained, and the presence of the vertical channel T causes the undercut H It is possible to maintain good drainage and air permeability. 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.
[0017]
Further, in this case, since the expansion mechanism 16 is provided with an intermittent expansion mechanism 16a for intermittently expanding the expansion member 15, the penetration trace groove S formed by the penetration beam 4 as shown in FIG. Can be widened and expanded in a dotted manner to form the vertical channel T, and the vertical channel T can be formed satisfactorily. In this case, the expansion member 15 is formed in the penetration trace groove S. On the other hand, since the ridge body 15a which can expand a side surface is included, the fan-shaped vertical port T for the radius of the ridge body 15a can be formed easily.
[0018]
The second embodiment shown in FIGS. 11 and 12 shows another structure. In this case, spring bearing members 19a and 19a are attached to the bearing cylinder 19, and the spring hook members 19a and 19a and the protrusion 15a are respectively attached. The return springs 27 and 27 are hung, and the protrusions 15a of the expansion member 15 are positioned rearward in the normal state by the return springs 27 and 27.
[0019]
Even in the second embodiment, the same effect as the first embodiment can be obtained, and the protrusion 15a of the expansion member 15 is forcibly inserted by the return springs 27 and 27. return rotated to return to the fourth infested trace groove S, Thus, the predetermined angle reciprocating rotation of the linear protrusion 15a is made to ensure the vertical opening path T can be satisfactorily formed.
[0020]
The present invention is not limited to the above-described embodiment, and the structure of the expansion member 15 and the expansion mechanism 16 is appropriately changed and designed. For example, as the expansion mechanism 16, the expansion member 15 is continuously rotated in conformity with the traveling speed of the traveling machine body 1, so that a vertical opening having a sinusoidal side surface on the left and right by the protrusion body 15 a with the penetration trace groove S as a boundary. May be formed.
[0021]
【The invention's effect】
As described above, according to the present invention, the machine frame is coupled to the traveling machine body by the coupling mechanism, and the penetration beam is freely oscillated in the advancing direction to the machine frame by the oscillation mechanism. It is installed vertically, and a bullet body that can form a culvert in the soil is disposed below the penetration beam, and extends vertically in the soil by the penetration beam at a position behind the penetration beam. An expansion member capable of forming a vertical opening that opens to the ground surface by expanding one side surface of the penetration mark groove formed in the above is disposed, and an expansion mechanism that expands the expansion member is disposed. as a mechanism, is provided an intermittent extension mechanism for intermittently forcing a predetermined angle vertically around rotating in one direction the expansion member with said extension member a predetermined angle vertically around rotatably provided, the intermittent expansion mechanism, the A swivel arm can be horizontally rotated on the machine frame, and the swivel arm can be horizontally rotated on the expansion member. Since formed by providing the engagement claw member that is more intermittently pushing, infested beam with the progress of the traveling vehicle body to form an infested trace groove and infested the soil while Yurafu operation in the traveling direction In addition, the culvert is continuously formed by the bullet body, and at this time, the expansion member disposed at the rear position in the traveling direction of the penetration beam is a swivel arm that intermittently rotates the expansion member in one direction at a forced angle. A vertical opening that opens to the ground surface by expanding one side surface of a penetration groove formed by extending the vertical direction in the soil by the penetration beam. Therefore, even if both opposing surfaces of the penetration groove mark close and close together with the passage of time, the vertical channel is maintained, and the presence of this vertical channel allows the drainage of the underdrain and The air permeability can be kept good.
[0022]
In the invention according to claim 2 , since the return spring for forcibly returning the extension member to the return longitudinal rotation is provided in the intermittent extension mechanism, the extension member is forced by the return spring. It is possible to return to the penetration trace groove of the penetration beam and return and rotate it, and the expansion member can be expanded reliably. In the invention according to claim 3, the expansion member is provided with a protrusion that can expand one side surface of the penetration groove. Since it is included, a fan-shaped vertical opening corresponding to the radius of the protrusion can be easily formed.
[0023]
As described above, the intended purpose can be sufficiently achieved.
[Brief description of the drawings]
FIG. 1 is an overall side view of a first embodiment of the present invention.
FIG. 2 is a partial side view of the first embodiment of the present invention.
FIG. 3 is a partial plan view of the first embodiment of the present invention.
FIG. 4 is a partial side sectional view of a first embodiment of the present invention.
FIG. 5 is a partial plan sectional view of a first embodiment of the present invention.
FIG. 6 is a partially enlarged side sectional view of a first embodiment of the present invention.
FIG. 7 is a partially enlarged plan sectional view of a first embodiment of the present invention.
FIG. 8 is a partial cross-sectional view of the first embodiment of the present invention.
FIG. 9 is a partial plan view of the first embodiment of the present invention.
FIG. 10 is a partial plan view of the first embodiment of the present invention.
FIG. 11 is a partial rear view of the second embodiment of the present invention.
FIG. 12 is a partial plan sectional view of a second embodiment of the present invention.
[Explanation of symbols]
W Underground H Undercarriage T Longitudinal channel S Penetration groove trace M Ground surface 1 Traveling machine body 2 Coupling mechanism 3 Machine frame 4 Penetration beam 5 Shaking mechanism 14 Bullet body 15 Expansion member 15a Projection body 16 Expansion mechanism 16a Intermittent expansion Mechanism 22 Revolving arm 24 Engaging claw member 27 Return spring

Claims (3)

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 bullet body is provided, and one side surface of a penetration trace groove formed by extending the penetration beam in the vertical direction in the soil is extended to the ground surface at a position behind the penetration direction of the penetration beam. An expansion member capable of forming an open vertical opening is disposed, and an expansion mechanism for expanding the expansion member is disposed. As the expansion mechanism, the expansion member is provided so as to be capable of rotating vertically by a predetermined angle , and An intermittent expansion mechanism for intermittently rotating the expansion member in one direction by a predetermined angle is provided , and the intermittent expansion mechanism is provided with a swivel arm in the machine frame so as to be horizontally rotatable, be provided with a engaging claw member is intermittently pushed by the horizontal rotation of the pivot arm Underdrain forming apparatus according to claim. 2. A culvert forming apparatus according to claim 1, wherein the intermittent expansion mechanism is provided with a return spring for forcibly returning and rotating the expansion member back and forth.   3. The culvert forming apparatus according to claim 1, wherein the expansion member includes a protrusion that can expand one side surface of the penetration trace groove.

Images