WO2010018809A1 - Joint pour tuyau flexible - Google Patents

Joint pour tuyau flexible Download PDF

Info

Publication number
WO2010018809A1
WO2010018809A1 PCT/JP2009/064127 JP2009064127W WO2010018809A1 WO 2010018809 A1 WO2010018809 A1 WO 2010018809A1 JP 2009064127 W JP2009064127 W JP 2009064127W WO 2010018809 A1 WO2010018809 A1 WO 2010018809A1
Authority
WO
WIPO (PCT)
Prior art keywords
joint
snap ring
flexible
sealing material
flexible pipe
Prior art date
Application number
PCT/JP2009/064127
Other languages
English (en)
Japanese (ja)
Inventor
裕司 岸本
剛年 東野
充志 木村
陽介 植田
Original Assignee
Ｊｆｅ継手株式会社
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 Ｊｆｅ継手株式会社 filed Critical Ｊｆｅ継手株式会社
Priority to KR1020117003220A priority Critical patent/KR101267691B1/ko
Priority to CN2009801286499A priority patent/CN102105732B/zh
Publication of WO2010018809A1 publication Critical patent/WO2010018809A1/fr
Priority to HK11108474.5A priority patent/HK1154415A1/xx

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/0036—Joints for corrugated pipes
    • F16L25/0054—Joints for corrugated pipes with specially shaped sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/0081—Pipe joints comprising a liquid or fusible seal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/26—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses specially adapted for hoses of metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/28—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses for hoses with one end terminating in a radial flange or collar

Definitions

  • the present invention relates to a joint for flexible pipes that is unlikely to cause fluid leakage and is less likely to become unusable due to unforeseen circumstances.
  • Patent Document 1 discloses a joint for flexible pipe as shown in FIG.
  • This flexible pipe joint includes a joint body 200, a sleeve 202, a ring spring 204, an O-ring 206, a packing 208, and a push ring 210.
  • the joint body 200 is formed with a large-diameter hole 200a, a medium-diameter hole 200b, and a small-diameter hole 200c in order from the inlet side.
  • the sleeve 202 is slidably mounted in the medium diameter hole 200 b of the joint main body 200 and engages with the distal end portion of the flexible tube 300.
  • the inlet side of the sleeve 202 extends to the large diameter hole 200 a of the joint body 200.
  • the ring spring 204 is formed in an annular shape, expands and contracts due to elastic deformation, is fitted into the outer periphery of the valley portion 312 of the flexible tube 300 in a state where no load is applied, and is attached to the outer surface on the inlet side of the sleeve 202 in the expanded state.
  • the push ring 210 is screwed to the inlet side of the joint body 200.
  • An O-ring 206 is fitted between the push ring 210 and the joint body 200.
  • a packing 208 is attached to the inner peripheral surface of the pusher wheel 210.
  • the inner diameter of the push wheel 210 near the inner back end is smaller than the outer diameter of the ring spring 204 when the ring spring 204 is fitted on the outer periphery of the valley 312.
  • Patent Document 2 discloses a flexible pipe joint as shown in FIGS. 9 (A) and 9 (B).
  • This flexible pipe joint includes a joint body 250, a retainer member 252, a push wheel 254, and a waterproof packing 256.
  • the joint body 250 has a tube insertion hole 270.
  • the flexible tube 300 is inserted into the tube insertion hole 270.
  • the retainer member 252 is disposed in the tube insertion hole 270.
  • the retainer member 252 has a rear protrusion 252a.
  • the rear protrusion 252 a is inserted into the trough 312 on the outer surface of the flexible tube 300.
  • the push ring 254 is fixed in a state where the rear protrusion 252a of the retainer member 252 is inserted into the trough 312 on the outer surface of the flexible tube 300.
  • the pusher wheel 254 slides in the axial direction within the tube insertion hole 270 of the joint body 250. Therefore, in the push wheel 254, the position where the rear protrusion 252a of the retainer member 252 does not fit into the valley 312 of the flexible tube 300, and the state where the rear protrusion 252a of the retainer member 252 fits into the valley 312 of the flexible tube 300. It is possible to displace between the positions holding the
  • the waterproof packing 256 seals between the flexible tube 300 and the joint main body 250.
  • the flexible pipe joint shown in FIGS. 9A and 9B is provided with a lock mechanism.
  • This locking mechanism locks the push wheel 254 in the state described below.
  • the state is a state in which the rear protrusion 252a is fitted into the valley 312.
  • This locking mechanism is constituted by a stop ring member 258, a first groove 260, a second groove 262, and a third groove 264.
  • the stop ring member 258 is a C-shaped member.
  • the first groove 260 is formed in the joint body 250.
  • the outer periphery of the stop ring member 258 engages with the first groove 260.
  • the second groove 262 is also formed in the joint body 250.
  • the outer periphery of the stop ring member 258 is also engaged with the second groove 262.
  • the third groove 264 is formed on the outer peripheral surface of the push wheel 254.
  • the inner periphery of the stop ring member 258 is engaged with the third groove 264.
  • the stop ring member 258 slides from the first groove 260 to the second groove 262 according to the slide of the push wheel 254 while the inner peripheral portion is engaged with the third groove 264.
  • the pusher wheel 254 When the outer peripheral portion of the stop ring member 258 is engaged with the first groove 260, the pusher wheel 254 is temporarily fixed to the joint body 250 in a half-inserted state. The position of the push wheel 254 at this time is a position where the rear protrusion 252a does not fit into the valley 312. When the outer peripheral portion of the stop ring member 258 engages with the second groove 262, the pusher wheel 254 is locked. At this time, the rear protrusion 252a is held in a state of being fitted into the valley 312. The pushing amount of the push wheel 254 is set to be substantially equal to the distance between the first groove 260 and the second groove 262 described above.
  • the flexible pipe 300 when the push ring 254 is pushed in, the flexible pipe 300 can be connected while maintaining good sealing performance.
  • the present invention has been made to solve such problems, and an object of the present invention is to provide a joint for flexible pipes which is less likely to cause fluid leakage.
  • the flexible pipe joints 10 and 12 include joint bodies 20 and 21 and elastically deformable seal materials 22 and 23.
  • the sealing materials 22 and 23 are accommodated in the joint main bodies 20 and 21.
  • a flexible pipe 300 is inserted into the joint bodies 20 and 21.
  • peaks 310 and valleys 312 extending along the entire circumference are alternately arranged in the tube axis direction.
  • a tube insertion hole 60h is formed in the center. The flexible tube 300 is inserted into the tube insertion hole 60h.
  • the sealing materials 22 and 23 seal between the outer peripheral surface of the flexible tube 300 inserted into the tube insertion hole 60 h and the inner peripheral surfaces of the joint main bodies 20 and 21.
  • the joint main bodies 20 and 21 include insertion ports 40 and 41, a first housing portion 42, a seal material diameter-reducing guide portion 48, and a second housing portion 44.
  • the flexible tube 300 is inserted into the insertion ports 40 and 41.
  • the first accommodating portion 42 is formed in the back of the insertion ports 40 and 41 and communicates with the insertion ports 40 and 41.
  • the seal material diameter-reducing guide portion 48 is formed on the side opposite to the insertion opening of the first housing portion 42 and narrows as the distance from the first housing portion 42 increases.
  • the second storage portion 44 is formed at the back of the sealing material diameter-reducing guide portion 48 and stores the distal end portion of the flexible tube 300 and the sealing materials 22 and 23 on the outer periphery of the distal end portion of the flexible tube 300.
  • the sealing materials 22 and 23 have trunk portions 60a and 61a and sealing action portions 60c, 61c and 61g.
  • the trunk portions 60 a and 61 a are pushed into the second housing portion 44 by the distal end portion of the flexible pipe 300 housed in the joint main bodies 20 and 21.
  • the sealing action portions 60c, 61c, 61g are drawn into the second housing portion 44 by pushing the body portions 60a, 61a into the back of the second housing portion 44.
  • the sealing action portions 60 c, 61 c and 61 g are drawn into the second housing portion 44, the sealing action portions 60 c, 61 c and 61 g are engaged with the valley portion 312 of the flexible tube 300 by the sealing material diameter reducing guide portion 48 and drawn into the second housing portion 44. After that, the space between the inner periphery of the second housing portion 44 and the outer periphery of the flexible tube 300 is sealed.
  • the sealing action portions 60 c, 61 c, 61 g seal between the inner periphery of the second housing portion 44 and the outer periphery of the flexible tube 300.
  • the sealing action portions 60c, 61c, and 61g are engaged with the trough portion 312 of the flexible tube 300. Therefore, the sealing action portions 60c, 61c, and 61g are deeply engaged with the trough portion 312 of the flexible tube 300. Can be both compatible. Since both of these are possible, fluid leakage is less likely to occur.
  • the above-described sealing action portion may have a plurality of annular portions 61c and 61g.
  • the annular portions 61c and 61g are arranged so as to be aligned in the central axis direction of the sealing material diameter-reducing guide portion 48 and the first accommodating portion 42.
  • the adjacent annular portions 61c and 61g may be connected to each other.
  • the plurality of annular portions 61c and 61g included in the sealing action portion are connected to each other.
  • the annular portions 61 c and 61 g are arranged so as to be aligned in the central axis direction of the sealing material diameter-reducing guide portion 48 and the first accommodating portion 42. Accordingly, when the trunk portions 60 a and 61 a are drawn into the back of the second housing portion 44, the annular portions 61 c and 61 g are sequentially drawn into the second housing portion 44.
  • the annular portions 61c and 61g mesh with the plurality of valley portions 312 of the flexible tube 300, respectively. Since the plurality of annular portions 61c and 61g mesh with the plurality of valley portions 312 respectively, fluid leakage is less likely to occur.
  • the sealing action part mentioned above may have one annular part 60c extended in the circumferential direction whole periphery of a flexible tube.
  • the annular portion 60 c may mesh with the valley 312 of the flexible tube 300.
  • the flexible pipe joint described above further includes a push ring 24.
  • the push ring 24 is disposed on the side of the insertion ports 40 and 41 of the joint main bodies 20 and 21 with respect to the seal materials 22 and 23 and connected to the joint main bodies 20 and 21.
  • the push ring 24 has a cylindrical portion 76a through which the flexible tube 300 passes.
  • a push wheel taper surface 82b is provided at an end of the cylindrical portion 76a on the side disposed in the insertion ports 40 and 41.
  • the presser wheel taper surface 82b extends toward the back of the insertion openings 40 and 41.
  • the sealing materials 22 and 23 further have a retaining portion 60e.
  • the retaining portion 60e is disposed at a position closer to the insertion ports 40 and 41 than the sealing action portions 60c, 61c, and 61g.
  • An outer peripheral tapered surface 62 is provided on the outer periphery of the retaining portion 60e.
  • the outer peripheral tapered surface 62 is narrowed toward the insertion ports 40 and 41.
  • the outer peripheral taper surface 62 faces the presser wheel taper surface 82b.
  • the flexible pipe joints 10 and 12 described above further include a snap ring 106 whose outer diameter changes due to elastic deformation.
  • a snap ring receiving and holding groove 84 is provided on a surface of the cylindrical portion 76a that faces the inner periphery of the joint bodies 20 and 21.
  • the inner periphery of the snap ring 106 is fitted in the snap ring housing and holding groove 84.
  • a first snap ring engagement groove 90 and a second snap ring engagement groove 92 are provided on the inner periphery of the joint bodies 20 and 21.
  • the second snap ring engagement groove 92 is provided at a position farther from the insertion ports 40 and 41 than the first snap ring engagement groove 90.
  • the flexible pipe joints 10 and 12 further include the resin layer 110.
  • the resin layer 110 is in contact with the intended insertion portion 77 in the cylindrical portion 76 a of the push wheel 24.
  • the push wheel 24 has a flange portion 76b on the outer periphery of the cylindrical portion 76a in addition to the cylindrical portion 76a.
  • the flange portion 76 b faces the joint main bodies 20 and 21 with the insertion-scheduled portion 77 interposed therebetween.
  • the flexible pipe joints 10 and 12 further include a fireproof packing 104.
  • the fireproof packing 104 is disposed on the outer periphery of the sealing materials 22 and 23 on the inner periphery of the first housing portion 42.
  • FIG. 1 is a half-broken cross-sectional view showing the flexible pipe joint 10 according to the first embodiment of the present invention in a state before the sealing material 22 is pushed.
  • FIG. 2 is a half-broken cross-sectional view of the flexible pipe joint 10 shown in a state where the sealing material 22 is being pushed.
  • FIG. 3 is a half-broken cross-sectional view of the flexible pipe joint 10 shown in a state after the insertion of the flexible pipe 300 is completed.
  • FIG. 4A is a cross-sectional view of the sealing member 22 with a half cutout.
  • FIG. 4B is a rear view of the sealing material 22.
  • FIG. 4C is a side view of the sealing material 22.
  • the flexible pipe joint 10 includes a joint body 20, a seal material 22, a push ring 24, and the like.
  • a receiving portion 30 is formed at one end of the joint body 20.
  • a connecting male screw 32 is formed on the outer periphery of the other end of the joint body 20.
  • the receiving portion 30 is a portion that receives the distal end portion of the metal flexible tube 300.
  • the sealing material 22 is accommodated inside the opening 30 of the joint body 20.
  • the pusher wheel 24 is connected to the joint body 20 in a half-inserted state that leaves a pushing allowance.
  • the push ring 24 is disposed closer to the insertion port 40 described later than the seal material 22.
  • the flexible tube 300 has crests 310 and troughs 312 extending in the circumferential direction on the outer peripheral portion thereof alternately in the tube axis direction, and the outer periphery thereof is made of a synthetic resin such as vinyl chloride. Covered with layer 314.
  • an insertion port 40, a first housing portion 42, and a second housing portion 44 are provided in the receiving portion 30 of the joint body 20.
  • the insertion port 40 is located on the most entrance side.
  • the innermost side is the second accommodating portion 44.
  • the flexible tube 300 is inserted into the insertion port 40.
  • the first accommodating portion 42 is formed at the back of the insertion port 40.
  • the first accommodating portion 42 is communicated with the insertion port 40.
  • “communication” means that two spaces are made continuous through a passage.
  • the “passage” here includes not only a tubular shape but also a simple hole.
  • the second accommodating portion 44 accommodates the distal end portion of the flexible tube 300 and the sealing material 22 described above.
  • a stopper portion 46 is provided at the inner back end of the second housing portion 44.
  • the stopper portion 46 protrudes in the direction of the central axis of the joint body 20 as compared with the second housing portion 44.
  • Between the first housing portion 42 and the second housing portion 44 there is a sealing material diameter reducing guide portion 48.
  • the seal material diameter-reducing guide portion 48 is provided on the opposite side of the insertion port 40 of the first housing portion 42.
  • the sealing material diameter-reducing guide portion 48 has a shape that narrows as the distance from the first accommodating portion 42 increases.
  • the removal-reducing diameter guide portion 50 has a shape that narrows away from the insertion port 40.
  • the sealing material 22 includes a body portion 60a, a tube end receiving portion 60b, a single annular portion 60c, a connecting portion 60d, and a retaining portion. Part 60e.
  • a tube insertion hole 60 h is formed in the center of the sealing material 22.
  • the flexible tube 300 is inserted into the tube insertion hole 60h.
  • the trunk portion 60a, the pipe end receiving portion 60b, the single annular portion 60c, the connecting portion 60d, and the retaining portion 60e are integrated.
  • drum 60a is cylindrical.
  • the inner diameter of the trunk portion 60 a is substantially the same as the outer diameter of the peak portion 310 of the flexible tube 300.
  • the tube end receiving portion 60b projects inwardly from the front end portion of the trunk portion 60a.
  • the single annular portion 60 c meshes with the valley portion 312 of the flexible tube 300, the inner peripheral surface of the joint body 20 and the outer peripheral surface of the flexible tube 300 are sealed.
  • the single annular portion 60c projects outward from the rear end portion of the trunk portion 60a.
  • the connecting portion 60d is provided behind the single annular portion 60c, and connects the single annular portion 60c and the retaining portion 60e.
  • the inner diameter of the connecting portion 60d is larger than the inner diameter of the trunk portion 60a.
  • the retaining portion 60e is disposed at a position closer to the insertion port 40 than the rear end portion of the connecting portion 60d, that is, the single annular portion 60c.
  • the inner diameter of the retaining portion 60 e is smaller than the inner diameter of the connecting portion 60 d and larger than the outer diameter of the peak portion 310 of the flexible pipe 300.
  • the outer diameter of the retaining portion 60e is larger than the outer diameter of the connecting portion 60d.
  • the barrel portion 60a, the single annular portion 60c, and the connecting portion 60d are made of rubber.
  • rubbers used as these materials include NBR (Acrylonitrile-Butadiene rubber), SBR (Styrene-butadiene rubber), EPDM (ethylene propylene rubber) and the like.
  • a reinforcing cored bar 60f such as a brass washer is embedded in the pipe end receiving part 60b.
  • the material of the tube end receiving portion 60b may be formed of the same material as that of the body portion 60a, the single annular portion 60c, and the connecting portion 60d, or may be formed of a different material.
  • the retaining part 60e is formed of a material harder than the body part 60a, the single annular part 60c, and the connecting part 60d. Examples of such materials include metal materials such as brass and hard resins.
  • a part of the retaining portion 60e has an arc shape.
  • the plurality of retaining portions 60e are connected to the rear end portion of the connecting portion 60d. These retaining portions 60e are arranged in a circumferential direction.
  • the retaining portions 60e are separated from each other by a predetermined interval.
  • An outer peripheral tapered surface 62 is provided on the outer periphery of the rear end of the retaining portion 60e. The outer peripheral tapered surface 62 is narrowed toward the insertion port 40, that is, toward the rear end.
  • This sealing material 22 is arranged as shown in FIG. 1 before the flexible tube 300 is inserted (initial state). That is, in the initial state, the tube end receiving portion 60b and the trunk portion 60a are located in the second accommodating portion 44, the single annular portion 60c is located in the first accommodating portion 42, and the retaining portion 60e is the insertion port 40.
  • the sealing material 22 is disposed so as to be located inside.
  • a tip latch member 70 is disposed on the stopper portion 46 in the joint body 20.
  • the tip latching member 70 is made of metal, hard resin, or the like.
  • the tip latching member 70 has a C-shaped ring portion 72a that can be expanded and contracted in diameter, and a plurality of check pawls 72b that can be elastically deformed.
  • the outer diameter portion of the ring portion 72 a is engaged in a circumferential groove 74 a provided on the outer diameter side of the stopper portion 46.
  • the check pawl 72b protrudes into the second accommodating portion 44 from several locations on the inner diameter portion of the ring portion 72a.
  • the pusher wheel 24 has a cylindrical portion 76a and a flange portion 76b.
  • the cylindrical portion 76a and the flange portion 76b are integrated.
  • the cylinder portion 76 a is disposed on the insertion port 40 side of the joint body 20 and is connected to the joint body 20. In the insertion port 40, the cylindrical portion 76a is movable in the axial direction.
  • the flexible tube 300 can be inserted through the cylindrical portion 76a.
  • the flange portion 76b is provided on the outer periphery of the rear end portion on the inlet side of the cylindrical portion 76a.
  • the flange portion 76b faces the joint body 20 with a fitting portion 77 to be described later interposed therebetween.
  • the outer diameter of the flange portion 76 b is larger than the hole diameter of the insertion port 40.
  • the cylinder portion 76 a has a packing groove 78.
  • the packing groove 78 is provided on the inner periphery of the rear end on the inlet side of the cylindrical portion 76a.
  • the packing groove 78 is formed in the circumferential direction.
  • a waterproof packing 80 is fitted in the packing groove 78.
  • the waterproof packing 80 is made of EPDM or the like.
  • the cross section of the waterproof packing 80 is T-shaped. Pin-shaped selectively permeable members 100 are embedded in several places in the circumferential direction of the waterproof packing 80. The selectively permeable member 100 transmits gas but does not transmit solid or liquid. Thereby, a gas leak test
  • the selectively permeable member 100 is, for example, a sheet material including a continuous porous membrane or a porous body having continuous pores.
  • the former continuous porous membrane is obtained by molding tetrafluoroethylene resin powder.
  • the latter porous body can be obtained by molding from thermoplastic resin powder such as polyethylene, polypropylene, polymethyl acrylate and the like.
  • the guide taper surface 82a is provided in the outer periphery of the edge by the side arrange
  • the shape of the guide taper surface 82a is tapered.
  • the gradient of the guide taper surface 82 a is substantially the same as that of the retaining diameter reducing guide portion 50 provided in the joint body 20.
  • a push wheel taper surface 82b is provided on the inner periphery of the end of the cylindrical portion 76a on the side disposed in the insertion port 40.
  • the presser wheel taper surface 82b has a flared shape that extends toward the back of the insertion port 40.
  • a snap ring receiving and holding groove 84 is provided on the surface of the cylindrical portion 76 a that faces the inner periphery of the joint body 20.
  • the snap ring housing and holding groove 84 is provided in the circumferential direction.
  • a first snap ring engagement groove 90 and a second snap ring engagement groove 92 are provided on the inner periphery of the insertion port 40 of the joint body 20. Each of these extends in the circumferential direction.
  • the second snap ring engagement groove 92 is provided at a position farther from the insertion port 40 than the first snap ring engagement groove 90.
  • a groove taper surface 90 a is formed on the front groove wall in the first snap ring engagement groove 90. The groove taper surface 90 a is narrowed toward the first housing portion 42.
  • a waterproof packing groove 86 is provided behind the snap ring housing and holding groove 84.
  • the waterproof packing 102 is fitted in the waterproof packing groove 86.
  • a fireproof packing groove 94 is provided on the inner periphery of the first housing portion 42 of the joint body 20 so as to surround the outer periphery of the sealing material 22.
  • the fireproof packing groove 94 is fitted with a fireproof packing 104 made of rubber with thermally expandable graphite or the like.
  • the flexible pipe joint 10 includes a first positioning and holding mechanism and a second positioning and holding mechanism.
  • the first positioning and holding mechanism positions and holds the tip of the push wheel 24 at the initial position.
  • FIG. 1 shows a state where the push wheel 24 is positioned and held at the initial position (half-inserted state).
  • the initial position referred to here means after the retaining portion 60 e of the sealing material 22 before the flexible tube 300 is inserted.
  • the second positioning and holding mechanism positions and holds the distal end portion of the push wheel 24 at a complete pushing position.
  • FIG. 3 shows a state in which the tip end portion of the push wheel 24 is positioned and held at the complete pushing position.
  • the complete pushing position referred to here is the retaining portion 60 e of the sealing material 22 after the sealing material 22 is pushed into the second housing portion 44 as the flexible pipe 300 is inserted. This means a position with a slight gap between them.
  • the first positioning and holding mechanism includes the snap ring housing and holding groove 84 of the push ring 24, the snap ring 106, the first snap ring engaging groove 90 of the joint body 20, and the covering resin layer 110. And is composed of.
  • the snap ring 106 has an edge portion, and its outer shape changes due to elastic deformation.
  • the snap ring housing and retaining groove 84 is housed by fitting the inner periphery of the snap ring 106.
  • the outer periphery of the snap ring 106 is engaged with the first snap ring engaging groove 90.
  • the covering resin layer 110 is covered so as to be in close contact with a part of the outer surface of the press ring 24 in the half-inserted state exposed from the joint body 20 and a part of the outer surface of the receiving part 30.
  • the reason why they are in close contact with each other is that the covering resin layer 110 contracts by being heated after being put on the push wheel 24. Thereby, the coating resin layer 110 is in contact with the insertion-scheduled portion 77.
  • the part to be fitted 77 is exposed from the joint body 20 when the outer periphery of the snap ring 106 is fitted in the first snap ring engaging groove 90 in the cylindrical part 76 a of the push ring 24, and When the outer periphery is fitted in the second snap ring engaging groove 92, it is a portion arranged in the insertion port 40.
  • the flange portion 76b faces the joint body 20 with the insertion-scheduled portion 77 interposed therebetween.
  • the covering resin layer 110 is made of a heat-shrinkable plastic film having a thickness larger than the gap between the inner peripheral surface of the insertion port 40 and the cylindrical portion 76a of the push ring 24. Instead of a heat-shrinkable plastic film, it may be made of a heat-shrinkable plastic sheet or a tube made of such plastic.
  • the material of the coating resin layer 110 is preferably a non-vinyl chloride material that is environmentally friendly, such as a polystyrene shrink film, a polyolefin shrink film, a polyester shrink film, or a polypropylene shrink film.
  • the push wheel 24 is positioned and held at the initial position described above by the first positioning and holding mechanism. Thereby, even if an unexpected force acts on the pusher wheel 24 in the half-inserted state, it is difficult to be pushed into the joint body 20.
  • the second positioning and holding mechanism is configured by the snap ring housing and holding groove 84 of the push ring 24, the snap ring 106, and the second snap ring engaging groove 92 of the joint body 20.
  • the second snap ring engagement groove 92 is formed on the inner periphery of the receiving portion 30, and the second snap ring engagement groove 92 is inserted into the insertion opening 40 more than the first snap ring engagement groove 90. It is arranged side by side at a position far from the center. After the covering resin layer 110 is removed, when the push ring 24 in a half-inserted state is pushed into the insertion port 40, the snap ring 106 slides out from the groove tapered surface 90a of the first snap ring engaging groove 90.
  • FIG. 3 shows a state in which the snap ring 106 is fitted in the second snap ring engaging groove 92.
  • the stroke length S (see FIG. 2), which is the pushing allowance of the push ring 24, is substantially equal to the distance between the first snap ring engaging groove 90 and the second snap ring engaging groove 92. Is set.
  • the first positioning and holding mechanism is inadvertently pushed into the half-inserted push ring 24. Is less likely to occur. That is, the occurrence of the above-described situation is prevented by the engaging action between the outer peripheral portion of the snap ring 106 and the first snap ring engaging groove 90 and the supporting action of the coating resin layer 110 provided in the insertion-scheduled portion 77.
  • the flexible tube 300 When connecting the flexible tube 300, first, the flexible tube 300 (the synthetic resin layer 314 at the tip of the flexible tube 300 is peeled off in advance. As a result, the peak portion 310 of the flexible tube 300 is exposed. ) Is inserted into the insertion port 40 of the joint body 20 from the inlet side of the pusher wheel 24. The flexible tube 300 passes through the sealing material 22 in the order of the retaining portion 60e, the connecting portion 60d, the single annular portion 60c, and the trunk portion 60a. Thereafter, the distal end portion of the flexible tube 300 abuts on the tube end receiving portion 60 b of the sealing material 22.
  • the single annular portion 60c of the sealing material 22 is formed so as to protrude outward, the single annular portion 60c does not become an obstacle when the flexible tube 300 is inserted.
  • the distal end portion of the flexible tube 300 can be smoothly inserted into the sealing material 22.
  • the trunk portion 60 a of the sealing material 22 is pushed into the back of the second housing portion 44.
  • the single annular portion 60 c of the sealing material 22 moves to the narrow side of the sealing material diameter-reducing guide portion 48.
  • the single annular portion 60c is pressed by the sealing material diameter reducing guide portion 48 and is reduced in diameter inwardly.
  • the single annular portion 60 c engages with the valley portion 312 of the flexible tube 300 as soon as it passes through the seal material diameter reducing guide portion 48 and is drawn into the second accommodating portion 44. At that time, the single annular portion 60 c is in close contact with the inclined surface 312 a of the valley portion 312.
  • the retaining portion 60 e of the sealing material 22 moves to the narrow side of the retaining diameter reducing guide portion 50.
  • the retaining portion 60e is pulled into the first accommodating portion 42 while being pushed in the diameter reducing direction by the retaining diameter reducing guide portion 50.
  • the seal material 22 reliably seals the space between the outer peripheral surface of the distal end portion of the flexible tube 300 and the inner peripheral surface of the second housing portion 44 of the joint body 20.
  • the fluid flowing in the flexible tube 300 leaks from the distal end portion of the flexible tube 300 through the outer periphery of the distal end portion of the flexible tube 300 and the inner periphery of the second housing portion 44 of the joint body 20. Can be prevented. Even if the flexible tube 300 is slightly deformed, the effect is hardly lowered.
  • a sealing function can also be expected between the distal end portion of the flexible tube 300 and the tube end receiving portion 60 b of the sealing material 22.
  • the check claw 72b is elastically deformed while the inner diameter portion of the tube end receiving portion 60b of the sealing material 22 and the inner surface of the distal end portion of the flexible tube 300 are passing.
  • this pipe end receiving part 60b passes the check claw 72b, the installer feels a response. Thereby, the installer can feel that the flexible tube 300 has been inserted to a predetermined depth.
  • the flexible tube 300 can be prevented from swinging because the distal end portion of the flexible tube 300 engages with the check pawl 72 b of the distal end latching member 70 and the retaining portion 60 e enters the valley portion 312.
  • 2 shows that the inner diameter portion of the tube end receiving portion 60b of the sealing material 22 and the inner surface of the distal end portion of the flexible tube 300 pass between the check pawl 72b and the inner peripheral surface of the second accommodating portion 44, and the flexible tube The situation where the tip of 300 hits the stopper portion 46 is shown.
  • the coating resin layer 110 is removed from the pusher wheel 24.
  • the pusher wheel 24 is completely pushed in by the pushing allowance (the stroke length S shown in FIG. 2).
  • the snap ring 106 is moved along the groove taper surface 90a of the first snap ring engaging groove 90 of the joint body 20 in a state where the inner peripheral portion is fitted in the snap ring receiving and holding groove 84.
  • the first snap ring engaging groove 90 slides out. Since it moves along the groove taper surface 90a, the snap ring 106 is elastically deformed to reduce its diameter.
  • FIG. 3 shows a state where the pusher wheel 24 is completely pushed. The front end of the push ring 24 is held at a complete pushing position located on the rear side of the retaining portion 60e of the sealing material 22. At this time, as clearly shown in FIG. 3, the sealing state by the sealing material 22 is secured.
  • the push ring taper surface 82b at the tip end of the push ring 24 comes close to and faces the outer peripheral tapered surface 62 of the retaining portion 60e of the sealing material 22.
  • the outer peripheral tapered surface 62 slightly moves in the direction of the insertion port 40 and comes into contact with the pusher wheel tapered surface 82 b.
  • the outer peripheral taper surface 62 receives a reaction force from the presser wheel taper surface 82b.
  • the fitting portion 63 arranged on the back side of the outer peripheral tapered surface 62 as a part of the retaining portion 60e is fitted into the valley 312 of the flexible tube 300.
  • the outer peripheral tapered surface 62 receives a reaction force from the presser wheel tapered surface 82b, and the fitting portion 63 transmits the reaction force to the trough 312 of the flexible tube 300, so that the flexible tube 300 is prevented from coming off.
  • FIG. 5 is a half-broken cross-sectional view showing the flexible pipe joint according to the second embodiment of the present invention in a state before the sealing material 23 is pushed.
  • FIG. 6 is a half-broken cross-sectional view of the joint for flexible pipe shown in a state in which the sealing material 23 is being pushed in.
  • FIG. 7 is a half cutaway cross-sectional view of the joint for flexible pipe shown in a state after the insertion of the flexible pipe is completed.
  • the flexible pipe joint 12 includes a joint body 21, a seal material 23, a push ring 24, and the like.
  • a receiving portion 31 is formed at one end of the joint body 21.
  • a connecting male screw 32 is formed on the outer periphery of the other end of the joint body 21.
  • the receiving portion 31 is a portion that receives the distal end portion of the metal flexible tube 300.
  • the seal material 23 is accommodated inside the receiving portion 31 of the joint body 21.
  • the push ring 24 is inserted into a semi-inserted state in which a pushing allowance is left in the receiving portion 31.
  • an insertion port 41, a first housing portion 42, and a second housing portion 44 are provided in the receiving portion 31 of the joint body 21.
  • the sealing material 23 includes a body portion 61a, a pipe end receiving portion 60b, a first annular portion 61c, a second annular portion 61g, a connecting portion 60d, and a retaining portion 60e.
  • the trunk portion 61a, the pipe end receiving portion 60b, the first annular portion 61c, the second annular portion 61g, the connecting portion 60d, and the retaining portion 60e are integrated.
  • drum 61a is cylindrical.
  • drum 61a is shorter than the trunk
  • the first annular portion 61c and the second annular portion 61g are annular.
  • the first annular portion 61c projects outward from the rear end portion of the trunk portion 61a.
  • the second annular portion 61g is connected to the rear end portion of the first annular portion 61c.
  • the interval between the first annular portion 61 c and the second annular portion 61 g is substantially the same as the interval between the valley portions 312 of the flexible tube 300.
  • the first annular portion 61c and the second annular portion 61g play substantially the same role as the single annular portion 60c according to the first embodiment.
  • the connecting portion 60d is provided behind the second annular portion 61g, and connects the second annular portion 61g and the retaining portion 60e.
  • the barrel portion 61a, the first annular portion 61c, the second annular portion 61g, and the connecting portion 60d are made of rubber. Examples of the rubber used as these materials are the same as those in the first embodiment.
  • This sealing material 23 is arranged as shown in FIG. 5 before the flexible tube 300 is inserted (initial state). That is, in the initial state, the tube end receiving portion 60b and the trunk portion 61a are located in the second accommodating portion 44, the first annular portion 61c and the second annular portion 61g are located in the first accommodating portion 42, and are retained. The sealing material 23 is disposed so that the portion 60e is located in the insertion port 41.
  • the first positioning / holding mechanism is inadvertently pushed into the half-inserted push ring 24. Is less likely to occur.
  • the flexible tube 300 When connecting the flexible tube 300, first, the flexible tube 300 is inserted into the insertion port 41 of the joint body 21 from the inlet side of the pusher wheel 24.
  • the flexible tube 300 passes through the sealing material 23 in the order of the retaining portion 60e, the connecting portion 60d, the second annular portion 61g, the first annular portion 61c, and the trunk portion 60a. Thereafter, the distal end portion of the flexible tube 300 comes into contact with the tube end receiving portion 60 b of the sealing material 23.
  • the first annular portion 61c and the second annular portion 61g are formed so as to project outward, so that they do not become an obstacle when the flexible tube 300 is inserted.
  • the distal end portion of the flexible tube 300 can be smoothly inserted into the sealing material 23.
  • the sealing material 23 When the flexible tube 300 is inserted until it comes into contact with the tube end receiving portion 60 b of the sealing material 23, the sealing material 23 is pushed into the second housing portion 44 by the flexible tube 300. Along with this pushing, the first annular portion 61 c of the sealing material 23 moves to the constricted side of the sealing material diameter-reducing guide portion 48. The first annular portion 61c is pressed by the sealing material diameter-reducing guide portion 48 and is reduced in diameter inwardly. The first annular portion 61 c engages with the valley portion 312 of the flexible tube 300 as soon as it passes through the seal material diameter reducing guide portion 48 and is drawn into the second accommodating portion 44.
  • the second annular portion 61g moves toward the second accommodation portion 44 along the inner peripheral surface of the first accommodation portion 42. is doing.
  • the first annular portion 61c engages with the valley portion 312 of the flexible tube 300
  • the second annular portion 61g starts to engage with the valley portion 312 adjacent to the valley portion 312 with which the first annular portion 61c is engaged.
  • the second annular portion 61g is pushed by the seal material diameter reducing guide portion 48. The diameter is reduced inwardly.
  • the second annular portion 61g engages with the valley portion 312 of the flexible tube 300 as soon as it passes through the seal material diameter reducing guide portion 48 and is drawn into the second accommodating portion 44.
  • the seal material 23 reliably seals the space between the outer peripheral surface of the distal end portion of the flexible pipe 300 and the inner peripheral surface of the second housing portion 44 of the joint body 21.
  • the first annular portion 61 c is in close contact with the inclined surface 312 a of the valley portion 312.
  • the second annular portion 61g is also in close contact with the inclined surface 312a of the valley portion 312.
  • the retaining portion 60e of the sealing material 23 moves to the constricted side of the retaining diameter reducing guide portion 50.
  • the retaining portion 60e moves to the first accommodating portion 42 while being pushed in the diameter reducing direction by the retaining diameter reducing guide portion 50.
  • FIG. 7 shows a state where the pusher wheel 24 is completely pushed.
  • the front end portion of the push ring 24 is held on the rear side of the retaining portion 60e of the sealing material 23. Therefore, the sealing state by the sealing material 23 is ensured.
  • the push ring 24 is completely pushed, even if an external force in the direction of pulling out the flexible tube 300 is applied thereafter, the flexible tube 300 is reliably prevented from coming out.
  • the principle is the same as in the first embodiment.
  • the receiving portion 30 or the receiving portion 31 is formed at one end of the joint body 20 or the joint body 21, and the connecting male screw 32 is formed on the outer periphery of the other end of the joint body 20 or the joint body 21.
  • the present invention can be applied to other structures, for example, symmetrical socket-type joints for flexible pipes having elbows at both ends, elbow-type joints for flexible pipes, and the like.
  • the present invention is not limited to the case where the sealing material seals one or two of the valley portions 312 of the flexible tube 300. There may be three or more portions of the sealing material that are in close contact with the valley 312 of the flexible tube 300.
  • the tube end receiving portion 60b and the reinforcing metal core 60f are not necessarily required. This is because the sealing material is drawn into the second housing portion of the joint body by the frictional force acting between the body portion 60a and the flexible tube 300.
  • the tip latching member 70 is not necessary.
  • the interval between the first annular portion 61 c and the second annular portion 61 g may be smaller than the interval between the valley portions 312 of the flexible tube 300. This is because the gap between the first annular portion 61c and the second annular portion 61g is widened by elastic deformation when engaging with the trough 312 of the flexible tube 300.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)

Abstract

L'invention concerne un joint pour un tuyau flexible, n'ayant pas tendance à permettre des fuites de fluide. Le corps de joint (20) du joint (10) pour un tuyau flexible comprend un trou d'insertion (40), une première section de stockage (42), une section de guidage de réduction du diamètre d'élément de joint (48), et une seconde section de stockage (44). Un élément de joint (22) comprend une section de corps (60a) et une section annulaire unique (60c). La section de corps (60a) est poussée profondément dans la seconde section de stockage (44) par l'extrémité du tuyau flexible (300) stockée dans le corps du joint (20). La section annulaire unique (60c) est tirée dans la seconde section de stockage (44) quand la section de corps (60a) est poussée profondément dans la seconde section de stockage (44). Quand la section annulaire unique (60c) est tirée dans la seconde section de stockage (44), la section annulaire unique est accouplée avec la section de fond (312) du tuyau flexible (300) par la section de guidage de réduction du diamètre d'élément de joint (48). Une fois que la section annulaire unique est tirée dans la seconde section de stockage (44), elle ferme l'espace entre la périphérie intérieure de la seconde section de stockage (44) et la périphérie extérieure du tuyau flexible (300).
PCT/JP2009/064127 2008-08-13 2009-08-10 Joint pour tuyau flexible WO2010018809A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020117003220A KR101267691B1 (ko) 2008-08-13 2009-08-10 플렉시블관용 조인트
CN2009801286499A CN102105732B (zh) 2008-08-13 2009-08-10 挠性管用接头
HK11108474.5A HK1154415A1 (en) 2008-08-13 2011-08-12 Joint for flexible tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008208418A JP5202178B2 (ja) 2008-08-13 2008-08-13 フレキシブル管用継手
JP2008-208418 2008-08-13

Publications (1)

Publication Number Publication Date
WO2010018809A1 true WO2010018809A1 (fr) 2010-02-18

Family

ID=41668953

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/064127 WO2010018809A1 (fr) 2008-08-13 2009-08-10 Joint pour tuyau flexible

Country Status (6)

Country Link
JP (1) JP5202178B2 (fr)
KR (1) KR101267691B1 (fr)
CN (3) CN102105732B (fr)
HK (1) HK1154415A1 (fr)
RU (1) RU2451863C1 (fr)
WO (1) WO2010018809A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5463083B2 (ja) * 2009-06-09 2014-04-09 大阪瓦斯株式会社 フレキシブル管用継手
WO2013132585A1 (fr) * 2012-03-06 2013-09-12 Ｊｆｅ継手株式会社 Dispositif de retenue et joint pour tuyau flexible
JP6267519B2 (ja) * 2014-01-16 2018-01-24 株式会社サンコー フレキ管継手
JP2016159768A (ja) * 2015-03-02 2016-09-05 住友電装株式会社 電線保護部材
CN111102410B (zh) * 2018-10-26 2023-05-02 光阳产业股份有限公司 挠性管用接头及该接头用的卡止件
KR102362653B1 (ko) * 2019-06-21 2022-02-14 샘찬에너지(주) 튜브 피팅 조립 방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0393682U (fr) * 1990-01-11 1991-09-25
JPH07110087A (ja) * 1993-10-12 1995-04-25 Hitachi Metals Ltd フレキシブル管用継手
JP2002048280A (ja) * 2000-08-04 2002-02-15 Toyoda Gosei Co Ltd ホースの接続構造体

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0632547Y2 (ja) * 1989-12-29 1994-08-24 東京瓦斯株式会社 フレキシブル管用継手
JPH06185680A (ja) * 1992-12-17 1994-07-08 Tokyo Gas Co Ltd フレキシブル管用継手
JPH07103383A (ja) * 1993-10-05 1995-04-18 Hitachi Metals Ltd フレキシブル管用継手
JP4749616B2 (ja) * 2001-07-19 2011-08-17 日立金属株式会社 差込式管継手
CN100373085C (zh) * 2001-10-04 2008-03-05 东京瓦斯株式会社 插入式管接头
DE10310938A1 (de) * 2003-03-13 2004-09-23 Brugg Rohr Ag, Holding Verfahren zur Herstellung einer Verbindung zwischen einem Wellrohr und einem Anschlußstück
CN1191442C (zh) * 2003-06-17 2005-03-02 张申正 一种用于波纹金属软管的快速接头

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0393682U (fr) * 1990-01-11 1991-09-25
JPH07110087A (ja) * 1993-10-12 1995-04-25 Hitachi Metals Ltd フレキシブル管用継手
JP2002048280A (ja) * 2000-08-04 2002-02-15 Toyoda Gosei Co Ltd ホースの接続構造体

Also Published As

Publication number Publication date
CN102563263A (zh) 2012-07-11
CN102105732A (zh) 2011-06-22
CN102588692A (zh) 2012-07-18
KR101267691B1 (ko) 2013-05-24
CN102105732B (zh) 2012-10-17
RU2451863C1 (ru) 2012-05-27
JP2010043706A (ja) 2010-02-25
KR20110028549A (ko) 2011-03-18
JP5202178B2 (ja) 2013-06-05
HK1154415A1 (en) 2012-04-20
CN102563263B (zh) 2014-12-10

Similar Documents

Publication Publication Date Title
WO2010018809A1 (fr) Joint pour tuyau flexible
JP5046113B2 (ja) コルゲイト管用継手
JP5194187B2 (ja) フレキシブル管用継手
JP5384882B2 (ja) コルゲイト管継手
JP5255982B2 (ja) フレキシブル管用継手
JP5193569B2 (ja) フレキシブル管用継手
JP4968585B2 (ja) 差込式継手
JP5193689B2 (ja) フレキシブル管用継手
JP5255981B2 (ja) フレキシブル管用継手
JP5193690B2 (ja) フレキシブル管用継手
JP5244636B2 (ja) フレキシブル管用継手
JP5028232B2 (ja) フレキシブル管用継手
JP5514931B2 (ja) フレキシブル管用継手
JP5422315B2 (ja) フレキシブル管用継手
JP5193570B2 (ja) フレキシブル管用継手
WO2010087406A1 (fr) Raccord pour tuyau souple
JP5487033B2 (ja) フレキシブル管用継手
JP5268798B2 (ja) フレキシブル管用継手
JP5481573B2 (ja) フレキシブル管用継手
JP5873680B2 (ja) フレキシブル管用継手
JP5346473B2 (ja) フレキシブル管用継手
JP2010286003A (ja) フレキシブル管用継手
JP2010043705A (ja) フレキシブル管用継手
JP2010014245A (ja) フレキシブル管用継手
JP2012233587A (ja) フレキシブル管用継手

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980128649.9

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09806700

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20117003220

Country of ref document: KR

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 1603/CHENP/2011

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 2011109233

Country of ref document: RU

122 Ep: pct application non-entry in european phase

Ref document number: 09806700

Country of ref document: EP

Kind code of ref document: A1