WO2014013577A1 - Feuille pour tuyau en feuille et dispositif de formation correspondant - Google Patents

Feuille pour tuyau en feuille et dispositif de formation correspondant Download PDF

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Publication number
WO2014013577A1
WO2014013577A1 PCT/JP2012/068246 JP2012068246W WO2014013577A1 WO 2014013577 A1 WO2014013577 A1 WO 2014013577A1 JP 2012068246 W JP2012068246 W JP 2012068246W WO 2014013577 A1 WO2014013577 A1 WO 2014013577A1
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WO
WIPO (PCT)
Prior art keywords
seat
sheet
pipe
seat pipe
tongue piece
Prior art date
Application number
PCT/JP2012/068246
Other languages
English (en)
Japanese (ja)
Inventor
伊正 田村
敏之 井町
幸男 木村
将統 阿部
Original Assignee
協和建設工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 協和建設工業株式会社 filed Critical 協和建設工業株式会社
Priority to JP2012553890A priority Critical patent/JP5232940B1/ja
Priority to BR112013010242-0A priority patent/BR112013010242B1/pt
Priority to PCT/JP2012/068246 priority patent/WO2014013577A1/fr
Publication of WO2014013577A1 publication Critical patent/WO2014013577A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B11/00—Drainage of soil, e.g. for agricultural purposes
    • E02B11/005—Drainage conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively

Definitions

  • the present invention relates to a sheet for a sheet pipe and a molding apparatus for the sheet pipe used for a sheet pipe in which a flexible flat plate is molded into a cylindrical shape and is embedded in a formation to guide or drain groundwater, and in particular, at a joint portion of the sheet.
  • the present invention relates to a seat for a seat pipe that includes a tongue piece portion and a cut portion having flexibility, and is configured so that the bent tongue piece portion can be inserted into the bent cut portion.
  • Patent Document 1 discloses an apparatus for continuously molding a cylinder body embedded in the soil and used for irrigation drainage or the like using a belt-shaped plastic sheet under the name “plastics sheet continuous cylinder molding apparatus”. The idea about is disclosed.
  • the device disclosed in Patent Document 1 will be described.
  • the device related to the plastics sheet continuous cylinder forming apparatus disclosed in Patent Document 1 is provided with a cylindrical curved sheet seam edge reduction tool on the upper part of the cylindrical bending guide of the belt-shaped plastic sheet, and the pulling tool is pulled on the reduction tool. Subsequently, a cylindrical forming ring is provided, and the belt-shaped plastic sheet is formed so as to pass through the inside of the cylindrical forming ring from the cylindrical bending guide in the longitudinal direction thereof.
  • a belt-shaped plastic sheet 27 includes a plurality of small holes 29, a plurality of check tongue pieces 31 connected in series along a seam edge 30a, and a seam edge.
  • a plurality of check holes 32 are formed in series so that the check tongue pieces 31 can be inserted along 30b and provided with check cuts 32a on the left and right ends.
  • the check tongue piece 31 is inserted into the check hole 32, and the belt-shaped plastic sheet 27 has a curved cylindrical shape. Furthermore, when the belt-shaped plastic sheet 27 is guided into the cylindrical molding ring, the outer diameter thereof is reduced, and the check tongue piece 31 completely enters the check hole 32 to complete the cylinder. Has an effect. Therefore, the belt-shaped plastic sheet 27 can be easily and continuously formed into a cylindrical body.
  • Patent Document 2 discloses an invention relating to a method of undergrounding a wire or the like used in irrigation work, cable laying work, or the like under the name “line, pipe or cable undergrounding method”.
  • the invention relating to the underground burying method such as a wire disclosed in Patent Document 2 is made by connecting a polymer material sheet and a squeeze passing through the cylindrical interior to a drilling body that is advanced by a drilling machine.
  • the perforated body After being placed in the soil, the perforated body is advanced to form the tubular molded body so that the sheet does not return to the original flat plate shape, and after these are laid in the ground, the tubular molded body and the sword Is removed from the perforated body, and further, the tip of a line or the like is bound to the scoring, and only the scoring is pulled.
  • a perforation is excavated behind the perforated body by the traveling of the perforator. Since the perforated body is connected with the sheet of the polymer material, the sheet is successively drawn out as the perforated body progresses to form a cylindrical molded body and is laid along the perforated body.
  • the present invention has been made in response to such a conventional situation, and a sheet pipe sheet that can be reliably and easily formed into a cylindrical shape and a sheet pipe sheet that can be cost-effectively and time-efficiently constructed.
  • An object of the present invention is to provide a molding apparatus.
  • the seat pipe seat according to the invention of claim 1 is formed of a synthetic resin flexible flat plate having a plurality of small holes formed in a cylindrical shape and embedded in the formation.
  • one end portion is formed in series with a plurality of tongue pieces having an insertion portion and a notch portion whose width is narrower than that of the insertion portion, and the other end portion is formed with the plurality of tongues.
  • a plurality of incisions are provided in series in line with the piece, and when the tongue piece and the notch are bent from each other, the tongue piece is inserted from above the notch and molded into a cylindrical shape.
  • the outer circumference of the insertion part of the bent tongue piece part is configured to be inserted along the inner circumference of the bent cut part. And wherein the Rukoto.
  • “the outer periphery of the insertion portion of the bent tongue piece portion can be inserted along the inner periphery of the bent cut portion” means that the tongue piece portion is not bent. This means that it is difficult to insert into a not-bent notch.
  • the insertion portion is easily inserted into the cut portion. Therefore, the joint portion is connected over the whole, and a complete cylindrical seat pipe is formed. Further, since the tongue piece portion has a notch portion, when the tongue piece portion is completely inserted into the notch portion, the notch portion is locked to the notch portion and has a function of being difficult to separate from each other. . In addition to this, since the tongue piece is inserted from above the notch and is formed into a cylindrical shape, the load on the formation when the seat pipe is embedded is more from the tongue to the notch. Since it acts so that it may approach, the tongue piece part and the notch part will be in a state where it is more difficult to remove after embedding.
  • seat for seat pipes which concerns on invention of Claim 2 is a sheet
  • the notch part is the circular arc shape which forms a circular arc in the other edge part side, It is characterized by the above-mentioned.
  • the arc shape means a portion surrounded by the arc and the string, and the other end and the string are parallel to each other.
  • the seat pipe seat according to the invention described in claim 3 is the seat pipe seat according to claim 1, wherein the cut portion has a T-shape that forms a vertical image on the other end side. It is characterized by that.
  • the T-character is a character made up of a horizontal image and a vertical image, and the other end portion and the horizontal image are parallel to each other.
  • the curved tongue A right-angle portion at the intersection of the T-shaped horizontal image and the vertical image is pressed by the one portion.
  • the right-angled portion is bent and the T-shape is deformed into an arc shape. Therefore, for example, when the maximum width of the tongue piece is longer than the length of the horizontal image and the maximum width of the tongue piece is shorter than the inner circumference of the arc generated by the deformation, the tongue piece is inserted into the notch. It has the action.
  • the shape in which the T-shape is deformed includes a circular shape and a triangular shape having a horizontal image as a base.
  • the seat pipe seat according to the invention described in claim 4 is the seat pipe seat according to any one of claims 1 to 3, wherein the maximum width of the insertion portion of the tongue piece portion is the notch portion. It is characterized by being wider than the maximum width.
  • the “maximum width of the insertion portion of the tongue piece” and the “maximum width of the cut portion” mean the maximum width and the cutting portion of the insertion portion of the tongue piece portion that is not deformed by any pressure. This means the maximum width of the insert.
  • a seat pipe forming apparatus is an apparatus for introducing a seat pipe sheet according to any one of claims 1 to 4 and forming a seat pipe, wherein A sheet winding part, an introduction part, a first guide part, and a second guide part that are installed in series along the long axis direction via a support tool.
  • the sheet pipe sheet is wound and held so that the tongue portion and the cut portion of the pipe sheet are formed on the side portions, and the sheet pipe sheet is supplied to the introduction portion.
  • An inlet opening end that introduces the sheet along its longitudinal direction, an outlet opening end that feeds out the introduced sheet pipe sheet, and a reduced diameter with a gap in the upper part from the inlet opening end toward the outlet opening end
  • a pair of wings facing each other
  • the curvature of the wing portion on the tongue piece side is larger than the curvature of the wing portion on the cut portion side so that the tongue piece portion of the seat pipe sheet is inserted from above the cut portion and formed into a cylindrical shape.
  • the second guide part has an annular hole having a diameter smaller than the diameter of the passage hole part and allowing the cylindrical sheet pipe to pass therethrough.
  • the sheet for the sheet pipe held by the sheet winding part passes through a pair of wing parts facing each other while reducing the diameter with a gap at the upper part of the introduction part, Both sides are curved upward. And since the curvature of the wing part on the tongue piece part side is larger than the curvature of the wing part on the cut part side, the side part on the cut part side can sink under the side part on the tongue piece part side. It is transformed into a shape.
  • the deformed seat pipe seat passes through the passage hole portion of the first guide portion, the side portions on the tongue piece side and the cut portion side overlap each other to form a seam portion.
  • the sheet begins to be deformed into a cylindrical shape.
  • This seam portion is formed in the vicinity of the uppermost cylindrical portion.
  • the joint portion is pressed from above by the vertical rotating roller, so that the tongue piece portion is bent into a shape protruding downward and begins to be inserted into the cut portion. At this time, the entire tongue piece portion may not be completely inserted into the cut portion.
  • the second guide portion is provided with an annular hole having a diameter smaller than that of the passage hole portion, the diameter of the substantially cylindrical seat pipe is reduced, and the tongue piece portion is pushed deeper into the cut portion. It is. Then, the seat pipe seat is fed in the leading end direction, so that a plurality of serial tongue pieces are sequentially pushed into a plurality of serial cut portions corresponding thereto. That is, a cylindrical seat pipe in which the seam portions are connected is completed.
  • a seat pipe forming apparatus according to the fifth aspect of the present invention, wherein the tubular seat pipe passing through the first guide portion is used instead of the second guide portion.
  • a pair of horizontal rotating rollers in contact with both side surfaces are provided.
  • the pair of horizontal rotation rollers rotate in a direction in which the cylindrical sheet pipe can be sent out in the distal direction.
  • Other functions of the seat pipe forming apparatus having such a configuration are the same as those of the fifth aspect of the invention.
  • the tongue piece portion is inserted into the cut portion and the seat pipe sheet is formed into a cylindrical shape, it is formed into a cylindrical shape on site. Is easy. Therefore, the transportation cost is lower than that of embedding a pipe that has already been formed into a cylindrical shape. Further, when the tongue pieces are completely inserted from above into the notch, they are difficult to separate from each other, so that it is difficult for the joint portion to be detached after the seat pipe is embedded. That is, since the surrounding mud enters the seat pipe and the drainage is not inhibited, a good drainage function can be exhibited over a long period of time.
  • the tongue piece in addition to the effect of the invention of claim 1, when pressure is applied from above the tongue piece, the tongue piece is bent and inserted into the notch. Therefore, it is possible to connect them more easily and reliably than the invention disclosed in Patent Document 1. Therefore, it is possible to avoid a situation in which the joint portion is detached. Further, since the cut portion has an arc shape, there is no portion where stress at the time of insertion of the tongue piece portion is concentrated, so that damage to the cut portion can be avoided.
  • the seat pipe seat according to claim 3 of the present invention has the same effect as the invention according to claim 1 or claim 2.
  • the seat pipe seat according to claim 4 of the present invention it is difficult or impossible to pull out the tongue piece portion from the cut portion by stopping the pressurization.
  • the tongue piece can be pulled out by applying pressure and pulling the sheet to the side. Therefore, in the seat pipe seat according to the present invention, in addition to the effect of the invention according to any one of claims 1 to 3, the seat pipe seat can be freely formed into a cylindrical or sheet-like shape. Either can be formed.
  • the sheet pipe sheet held by the sheet winding portion is introduced into the introduction portion, and then passes through the second guide portion to form a cylindrical shape.
  • the seat pipe can be formed automatically. Therefore, it is possible to quickly form the seat pipe with a small manual work load.
  • the molded sheet pipe has a strong joint portion because the tongue portion of the substantially tubular sheet pipe is pushed deeply into the cut portion by the second guide portion. Therefore, there is almost no possibility that this part will open during burial work, and work efficiency is good. Further, even when a large load is applied from above the seat pipe after embedment, there is no problem that the joint portion is detached.
  • (A) And (b) is the top view of the sheet
  • (A) is the strength test result of the sheet
  • or (e) is a schematic diagram of a cross section, respectively. It is a top view of the seat pipe forming apparatus which concerns on the 2nd Embodiment of this invention. It is a top view of the seat pipe forming apparatus which concerns on the modification in the 2nd Embodiment of this invention.
  • FIG. 6B is a view taken along line -B
  • FIG. 6C is a view taken along line CC in FIG. 6B. It is a top view of the sheet
  • FIGS. 1 to 3 mainly corresponding to claims 1 to 4
  • symbol is attached
  • Fig.1 (a) and FIG.1 (b) are the top views and the external view after shaping
  • the seat pipe seat 1 of this embodiment has a plurality of small holes 3 formed in a flexible plastic plate 2 made of polyethylene having a thickness of 1 mm and spaced from each other by about 150 mm.
  • the end portions 6a and 6b are each provided with a plurality of tongue pieces 4 and incisions 5 in series at intervals of about 10 mm, and the incisions 5 are provided at positions corresponding to the tongue pieces 4.
  • the tongue piece 4 includes a substantially triangular insertion portion 4a and notches 4b and 4b at positions corresponding to both ends of the substantially triangular base.
  • the notch part 5 is provided in order to insert the tongue piece part 4, and comprises the substantially radial shape enclosed by the circular arc 5a and the string 5b.
  • the arc 5a is located closer to the end 6b, and the string 5b is parallel to the end 6b.
  • the maximum width of the insertion portion 4a is shorter than the inner circumference of the arc 5a and wider than the maximum width of the string 5b.
  • FIG. 1B when the seat pipe sheet 1 is curved so that the end portion 6a and the end portion 6b face each other, and the seam 6 is formed by bringing them into close proximity, the seat pipe seat 1 is formed.
  • the end 6a covers the end 6b from above. Further, the tongue piece 4 is inserted into the notch 5.
  • FIG. 2 is a plan view of a seat pipe seat according to a modification of the first embodiment of the present invention.
  • the seat pipe sheet 1 a according to the modification of the present embodiment is obtained by replacing the notch portion 5 in the seat pipe sheet 1 with the notch portion 7.
  • the cut portion 7 is provided for inserting the tongue piece portion 4 in the same manner as the cut portion 5, and has a substantially T-shape in which the vertical image 7b is combined with the horizontal image 7a.
  • the vertical image 7b is located closer to the end 6b, and the horizontal image 7a is parallel to the end 6b.
  • the maximum width of the insertion portion 4a is wider than the width of the horizontal image 7a.
  • Other configurations are the same as those of the seat pipe seat 1 according to the first embodiment.
  • the maximum width of the insertion portion 4a is shorter than the inner circumference of the arc 5a and wider than the maximum width of the string 5b, so the insertion portion 4a is in a flat plate state.
  • the tongue piece portion 4 is not completely inserted into the cut portion 7. Therefore, when the pressurization is performed from above the insertion portion 4 a after forming the joint 6, the insertion portion 4 a is curved and inserted into the cut portion 5 along the inner periphery of the arc 5 a. If the pressurization is continued as it is, the notches 4b and 4b come into contact with both ends of the string 5b.
  • the curved insertion portion 4a returns to the original flat state, the notches 4b and 4b are locked to both ends of the string 5b, and the tongue piece 4 and the notch 5 are It has the effect of becoming difficult to separate from each other.
  • the several tongue piece part 4 and the notch part 5 are in series with the joint 6, respectively, when a pressure is continuously applied along the joint 6, the joint 6 will be connected over the whole. And has the effect that a complete cylindrical seat pipe is formed.
  • the tongue piece 4 and the notch 5 are deformed in addition to being pressed again, and when the ends 6 a and 6 b are pulled in the direction of separating from each other, the tongue piece 4 is cut off.
  • FIG. 3A shows the strength test result when the position of the joint portion is changed in the seat pipe seat according to the first embodiment of the present invention.
  • FIG. 3B to FIG. ) Is a schematic diagram of a transverse section.
  • the horizontal axis is the pressure (kN / m 2 ) applied from vertically above the seat pipe seat 1, and the vertical axis is the diameter along the vertical direction of the seat pipe seat 1 due to this pressure.
  • Crushing amount (mm) was measured by changing the position of the joint 6 for the flexible flat plate 2 having a thickness of 0.7 mm and a thickness of 1.0 mm.
  • the position of the joint 6 is represented by an angle ⁇ formed by the joint 6 and the vertical direction.
  • the angles ⁇ 0 degrees, 90 degrees, 180 degrees.
  • the tongue piece 4 is inserted into the notch 5 from above at the joint 6.
  • the curves a to c and g are all measured values for the flexible flat plate 2 having a thickness of 0.7 mm, and the positions of the joints 6 are respectively upward (see FIG. 3B). ), Side (see FIG. 3C), down (see FIG. 3D), and side (see FIG. 3E).
  • the curve g is a comparative example.
  • Curves d to f and h are measured values for the flexible flat plate 2 having a thickness of 1.0 mm, and the position of the joint 6 is above (see FIG. 3B) and side (see FIG. c)), downward (see FIG. 3D), and side (see FIG. 3E).
  • the curve h is a comparative example.
  • the maximum width of the insertion portion 4a is wider than the width of the horizontal image 7a, so that the tongue is the same as in the case of the notch portion 5 according to the first embodiment.
  • the piece 4 is not completely inserted into the notch 7. Therefore, when a pressure is applied from above the insertion portion 4a after the joint 6 is formed, the right angle portion at the intersection of the horizontal image 7a and the vertical image 7b is pressed by the curved insertion portion 4a. As a result, the right-angled portion is bent and the cut portion 7 is deformed into an arc shape similar to that of the cut portion 5.
  • the insertion portion 4a is curved and cut into the cut portion 7. It has the effect of being inserted.
  • the notches 4b and 4b are in contact with both ends of the horizontal image 7a.
  • the notches 4b and 4b are locked to both ends of the horizontal image 7a, and the tongue piece 4 and the notch 7 have a function of being difficult to separate from each other.
  • Other operations are the same as those of the seat pipe seat 1 according to the first embodiment.
  • the seat pipe seat 1 of the present embodiment since it is inserted into the cut portion 5 by applying pressure from above the tongue piece portion 4, the end portion 6a and the end portion are easily provided. 6b can be connected. Accordingly, since the incompletely connected portion does not occur, the joint 6 does not come off, and the seat pipe seat 1 can be surely made cylindrical.
  • the pressurization is stopped, the notches 4b and 4b are locked to both ends of the string 5b and become difficult to be separated from each other. Therefore, the joint 6 is firmly connected, and the joint 6 is connected during the burying operation. There will be no detachment.
  • the tongue piece part 4 since the tongue piece part 4 is inserted from the upper part with respect to the notch part 5, and the joint 6 exhibits pressure resistance much higher than earth pressure, it has a good drainage function withstanding long-term use after embedding. Can be maintained. Further, since the tongue piece portion 4 can be pulled out from the notch portion 5 by pressurizing again after connecting the joint 6, the seat pipe seat 1 can be freely and easily formed into a cylindrical shape. Or it can form in either sheet form.
  • the seat pipe seat 1a according to the modification of the present embodiment will be described.
  • the tongue piece portion 4 and the notch portion 7 are difficult to separate from each other due to pressurization and stoppage of the joint 6, so that the joints can be easily connected.
  • the eyes 6 can be reliably connected.
  • Other effects are the same as those of the seat pipe seat 1 according to the first embodiment.
  • the structure of the seat pipe seat according to the present invention is not limited to that shown in this embodiment.
  • the interval between the tongue piece 4 and the notches 5 and 7 may be other than 10 mm.
  • the interval between the end portions 6a and 6b of the seat pipe sheet may be other than 150 mm, and the thickness thereof may be other than 1 mm.
  • FIG. 4 is a plan view of a seat pipe forming apparatus according to the second embodiment of the present invention.
  • the seat pipe forming apparatus 8 of the present embodiment includes a sheet winding unit 10 installed in series along the long axis direction of a base 9 that is a plate material having a substantially rectangular shape, and an introduction unit 11. And a first guide portion 16, a second guide portion 19, and a third guide portion 21.
  • the size of the base 9 is about 800 mm ⁇ 150 mm.
  • the sheet winding portion 10 has a pair of holding frames 10a, 10a each having an arc shape, and ends fixed to the pedestal 9 by fixing screws 10c, 10c, respectively, and attached between the uppermost portions of the holding frames 10a, 10a.
  • the wound body of the seat pipe seat 1 is rotatably held by the shaft 10b.
  • the end of the holding frame 10a on the opposite side across the holding shaft 10b is similarly fixed to the base 9 by a fixing screw 10c (not shown). That is, the end portions 6 a and 6 b of the seat pipe seat 1 are arranged and supplied to the side portions of the introduction portion 11.
  • the seat pipe seat 1 is guided in the direction of the introduction portion 11 by a force (arrow Y in the drawing) that pulls the seat pipe seat 1 in the major axis direction.
  • the introduction portion 11 includes an inlet opening end 12a for introducing the seat pipe sheet 1 along the longitudinal direction thereof, an outlet opening end 12b for sending out the introduced sheet pipe sheet 1, and an outlet opening from the inlet opening end 12a. It is comprised from a pair of wing
  • the wing portions 13a and 13b are each formed in a trumpet shape, and the curvature of the wing portion 13a on the side where the tongue piece portion 4 is introduced is larger than the curvature of the 13b on the side where the cut portion 5 is introduced.
  • the inclined surface 14 has a structure raised by a pillow portion 15 a provided at one end of the support plate 15 in order to prevent the seat pipe seat 1 from bending downward.
  • the first guide portion 16 is supported by the support plate 15 attached to the pedestal 9, and passes through the passage hole portion 17 through which the seat pipe seat 1 fed out from the outlet opening end 12b passes.
  • a vertical rotating roller 18 is provided to press the seat pipe seat 1 from above (arrow Z in the figure). The vertical rotation roller 18 is adjusted so that the ceiling portion of the passage hole portion 17 is the center of the rotation axis, and the position in the width direction is pressed against the joint 6.
  • the second guide portion 19 is supported by the support plate 15 and is provided with a first annular hole 20 through which the seat pipe seat 1 that has passed through the passage hole portion 17 is passed.
  • the first annular hole 20 has a diameter smaller than the diameter of the passage hole portion 17. Therefore, the seat pipe seat 1 has a structure that receives pressure (arrow X 1 in the figure) that is reduced in diameter from the left and right ends when passing through the first annular hole 20. Accordingly, the seat pipe seat 1 fed out from the first annular hole 20 is formed into a substantially cylindrical shape.
  • the third guide portion 21 is supported by the support plate 15 and is provided with a second annular hole 22 through which the seat pipe seat 1 that has passed through the first annular hole 20 is passed.
  • the second annular hole 22 has a smaller diameter than the diameter of the first annular hole 20. Therefore, the seat pipe seat 1 has a structure that receives pressure (arrow X 2 in the figure) that is reduced in diameter from the left and right ends when passing through the second annular hole 22.
  • the seat pipe seat 1 that has passed through the second annular hole 22 is formed into a seat pipe 23 having a complete cylindrical shape.
  • FIG. 5 is a plan view of a seat pipe forming apparatus according to a modified example of the second embodiment of the present invention.
  • a seat pipe forming apparatus 8 a according to a modification of the present embodiment is provided with a pair of horizontal rotating rollers 24 and 24 instead of the second guide portion 19 of the sheet pipe forming apparatus 8.
  • the horizontal rotating rollers 24 and 24 rotate about the rotation shafts 25 and 25 supported by the support plate 15 and suspended by the suspension member 26, respectively.
  • the seat pipe seat 1 passes through the gap between the rotary shaft 25 and the rotary shaft 25. The distance of this gap is smaller than the diameter of the passage hole portion 17.
  • the seat pipe seat 1 has a structure that receives pressure (arrow X 3 in the figure) that is reduced in diameter from the left and right ends when passing through the gap between the rotary shaft 25 and the rotary shaft 25.
  • Other configurations are the same as those of the seat pipe forming apparatus 8 according to the second embodiment.
  • One sheet pipe sheet 1 is pulled out from the wound body of the sheet pipe sheet 1 held by the holding shaft 10b by the force in the direction indicated by the arrow Y in FIG. 4, and a pair of wing portions 13a, 13b is formed from the inlet opening end 12a.
  • the wing portions 13a and 13b are each formed in a trumpet shape, the end portions 6a and 6b are respectively curved upward. Further, the wing portions 13a and 13b are reduced in diameter toward the outlet opening end 12b, and the wing portion 13a is larger than the curvature than 13b. Therefore, the end portion 6a always covers the end portion 6b from above.
  • the joint 6 begins to be formed. Since the end portions 6a and 6b are respectively provided with the tongue piece portion 4 and the notch portion 5, the tongue piece portion 4 is cut when the vertical rotation roller 18 is pressed from above (arrow Z in FIG. 4). It starts to be inserted into the insertion portion 5 from above.
  • 6 (a) and 6 (b) are plan views of the first guide portion in the seat pipe forming apparatus according to the second embodiment of the present invention, respectively, and (c) is an A- It is A line arrow sectional drawing.
  • 6A and 6C the end portions 6a and 6b of the seat pipe seat 1 according to the first embodiment are fed into the first guide portion 16.
  • the insertion portion 4a is mainly bent in a direction protruding downward.
  • the insertion portion 4a has a width that is shorter than the arc 5a and substantially coincides with the inner circumference of the arc 5a. Therefore, the insertion part 4a has the effect
  • the end portions 6 a and 6 b of the seat pipe seat 1 a according to the modification of the first embodiment are fed into the first guide portion 16. At this time, since the portions pressed against the vertical rotation roller 18 are the insertion portion 4a and the vertical image 7b, the insertion portion 4a and the vertical image 7b are bent in a direction protruding downward.
  • the insertion part 4a has the effect
  • FIGS. 7A to 7D are side views before and after the operation of the first guide portion in the seat pipe forming apparatus according to the second embodiment of the present invention, respectively, and FIG. FIG. 6B is a view taken along the line BB in FIG. 6C, and FIG. 6C is a view taken along the line CC in FIG.
  • FIG. 7A immediately before compression by the vertical rotating roller 18, the cut portion 5 overlaps below the tongue piece portion 4. At this time, since the arc 5a and the string 5b exist at the same height, the cut portion 5 is not expanded in the height direction.
  • FIG. 7B when the compression is started, the insertion portion 4a is bent downward and comes into contact with the arc 5a.
  • the end 6b is also bent downward, and the arc 5a moves below the string 5b. Therefore, the notch part 5 will expand about a height direction.
  • FIG. 7C immediately before compression, the horizontal image 7a and the vertical image 7b exist at the same height, and the cut portion 7 is not expanded in the height direction.
  • FIG. 7D when the insertion portion 4a is bent downward due to compression, the tip of the insertion portion 4a comes into contact with the vertical image 7b, and the vertical image 7b is bent downward. Therefore, the cut portion 7 expands in the height direction.
  • the notch parts 5 and 7 are expanded also about a height direction, it has the effect
  • the seat pipe seat 1 deformed into a substantially cylindrical shape is reduced in diameter when passing through the first annular hole 20. 5 is pushed deeper.
  • the seat pipe sheet 1 is sent in the direction of arrow Y in the figure, whereby a plurality of serial tongue portions 4 are sequentially pushed into a plurality of serial cut portions 5 corresponding thereto.
  • the substantially cylindrical seat pipe seat 1 is reduced in diameter when passing through the second annular hole 22 so that the notches 4b and 4b are in contact with both ends of the string 5b.
  • the seam 6 is completely connected to complete the cylindrical seat pipe 23.
  • the passage direction of the seat pipe 23 is ensured by passing through the first guide portion 16 to the third guide portion 21. That is, the longitudinal direction of the base 9 reflects the burying direction of the seat pipe 23.
  • the operation of the seat pipe forming apparatus 8a will be described. Since the seat pipe seat 1 is reduced in diameter from the left and right ends when passing through the gap between the rotary shaft 25 and the rotary shaft 25, the tongue piece portion 4 is pushed deeper into the notch portion 5. Other operations are the same as those of the seat pipe forming apparatus 8 according to the second embodiment.
  • the sheet pipe sheet 1 drawn out from the sheet winding portion 10 passes through the wing portions 13a and 13b, and is then applied to the vertical rotating roller 18. Since the tongue piece portion 4 is inserted into the cut portion 5 from above by being pressed, the joint 6 can always exhibit high strength. Further, since the insertion portion 4a having a shape substantially coincident with the inner circumference of the arc 5a by the vertical rotation roller 18 is easily inserted into the cut portions 5 and 7 extended in the height direction, the end portion 6a is surely secured. And the end 6b can be connected.
  • the insertion part 4a does not collide with the inner periphery of the notch parts 5 and 7, damage to the notch parts 5 and 7 can also be avoided. Further, since there is no member that presses the joint 6 from above after the first guide portion 16, there is no possibility that the joint 6 will be reopened during the burying operation, and the operation can be completed quickly. Further, since the longitudinal direction of the pedestal 9 reflects the burying direction of the seat pipe 23, if the pedestal 9 is installed along a desired direction, the seat pipe 23 can be accurately embedded along this direction. .
  • the seat pipe 23 can be formed automatically and quickly, so that the working efficiency can be greatly improved as compared with the prior art, and the finished product Higher transport efficiency and lower cost installation than transporting and burying pipes.
  • the size of the base 9 is about 800 mm ⁇ 150 mm
  • the seat pipe forming apparatus 8 is generally compact and can be easily carried. Therefore, the burden is light in the movement for sequentially burying the plurality of seat pipes 23.
  • the seat pipe forming apparatus 8 does not have a portion that is driven by electric power, a power source is unnecessary. Therefore, the seat pipe forming apparatus 8 is highly convenient because an installation place is not selected in a vast cultivated land.
  • the seat pipe forming device 8a has the same effect as the seat pipe forming device 8 according to the first embodiment.
  • the structure of the seat pipe forming apparatus of the present invention is not limited to that shown in this embodiment.
  • the third guide portion 21 may not be provided.
  • the base 9 is not limited to the thing of the size mentioned above.
  • the invention described in claims 1 to 6 of the present invention is used as a seat pipe sheet used for a seat pipe that is embedded in a formation and that guides or drains groundwater and a molding apparatus thereof. Is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)

Abstract

L'invention porte sur une feuille pour tuyaux en feuille, laquelle feuille est apte à être formée facilement et de façon sûre sous une forme tubulaire et sur un dispositif de formation de feuille de tuyau en feuille, lequel dispositif est apte à une installation à faible coût et rentable du point de vue du temps. Une feuille pour tuyaux en feuille et un dispositif de formation pour celle-ci sont configurés de telle sorte que, parmi les bords d'une feuille de résine synthétique souple dans laquelle de multiples pores ont été percés, une paire de bords parallèles forment des parties qui sont réunies quand la feuille est formée sous une forme tubulaire. Sur l'un desdits bords, de multiples sections de languettes comportant des sections d'insertion et des sections en encoche, qui sont plus étroites que lesdites sections d'insertion, sont formées sous une rangée à intervalles réguliers. Sur l'autre bord, de multiples incisions sont réalisées en une rangée de façon à correspondre aux multiples sections de languette. Quand les sections de languette et les incisions sont mutuellement incurvées et que les sections de languette sont insérées dans les incisions à partir du dessus de façon à former la forme tubulaire, la marge de la section insérée de la section de languette incurvée peut être insérée en suivant la surface interne de l'incision incurvée.
PCT/JP2012/068246 2012-07-18 2012-07-18 Feuille pour tuyau en feuille et dispositif de formation correspondant WO2014013577A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2012553890A JP5232940B1 (ja) 2012-07-18 2012-07-18 シートパイプ用シート及びその成形装置
BR112013010242-0A BR112013010242B1 (pt) 2012-07-18 2012-07-18 lâmina para uso em canos laminados e aparelho para moldar cano laminado
PCT/JP2012/068246 WO2014013577A1 (fr) 2012-07-18 2012-07-18 Feuille pour tuyau en feuille et dispositif de formation correspondant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2012/068246 WO2014013577A1 (fr) 2012-07-18 2012-07-18 Feuille pour tuyau en feuille et dispositif de formation correspondant

Publications (1)

Publication Number Publication Date
WO2014013577A1 true WO2014013577A1 (fr) 2014-01-23

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ID=48913982

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/068246 WO2014013577A1 (fr) 2012-07-18 2012-07-18 Feuille pour tuyau en feuille et dispositif de formation correspondant

Country Status (3)

Country Link
JP (1) JP5232940B1 (fr)
BR (1) BR112013010242B1 (fr)
WO (1) WO2014013577A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5558640B1 (ja) * 2014-02-05 2014-07-23 協和建設工業株式会社 シートパイプ成形装置
JP2020090028A (ja) * 2018-12-05 2020-06-11 Ｔｏｙｏ Ｔｉｒｅ株式会社 ゴムシートの接続構造

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5128378U (fr) * 1974-08-23 1976-03-01
JPS52133265U (fr) * 1976-04-03 1977-10-11
JPS5845732U (ja) * 1981-09-18 1983-03-28 西村産業株式会社 廃棄プラスチツクを再利用した暗渠排水管

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5128378U (fr) * 1974-08-23 1976-03-01
JPS52133265U (fr) * 1976-04-03 1977-10-11
JPS5845732U (ja) * 1981-09-18 1983-03-28 西村産業株式会社 廃棄プラスチツクを再利用した暗渠排水管

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5558640B1 (ja) * 2014-02-05 2014-07-23 協和建設工業株式会社 シートパイプ成形装置
JP2020090028A (ja) * 2018-12-05 2020-06-11 Ｔｏｙｏ Ｔｉｒｅ株式会社 ゴムシートの接続構造

Also Published As

Publication number Publication date
BR112013010242B1 (pt) 2020-12-08
BR112013010242A2 (pt) 2016-09-13
JP5232940B1 (ja) 2013-07-10
JPWO2014013577A1 (ja) 2016-06-30

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