WO2009131105A1 - 流体継手および流体継手用リテーナ - Google Patents
流体継手および流体継手用リテーナ Download PDFInfo
- Publication number
- WO2009131105A1 WO2009131105A1 PCT/JP2009/057884 JP2009057884W WO2009131105A1 WO 2009131105 A1 WO2009131105 A1 WO 2009131105A1 JP 2009057884 W JP2009057884 W JP 2009057884W WO 2009131105 A1 WO2009131105 A1 WO 2009131105A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gasket
- retainer
- joint member
- elastic ring
- fluid coupling
- Prior art date
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Classifications
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- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
- F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0231—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member with specially adapted means for positioning the threaded member behind the collar
-
- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
-
- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
- F16L19/028—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall
- F16L19/0286—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall and being formed as a flange
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- 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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
-
- 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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
- F16L23/028—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder
- F16L23/0283—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes the flanges being held against a shoulder the collar being integral with the pipe
-
- 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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/162—Flanged joints characterised by the sealing means the pipe ends abutting each other
-
- 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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being 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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
- F16L23/20—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of metal
Definitions
- the present invention relates to a fluid coupling that obtains a sealing property by plastic deformation of a metal gasket, and a retainer for a fluid coupling that holds the gasket in such a fluid coupling.
- the fluid coupling includes first and second coupling members having fluid passages communicating with each other, and an annular gasket interposed between the butted end surfaces of both coupling members, and the gasket is plastically deformed. It is well known that the sealability is obtained, and normally, in such a fluid coupling, a retainer for holding the gasket on the coupling member is used.
- Patent Document 1 includes a gasket holding portion that holds an outer peripheral surface of an annular gasket, and a joint member holding portion that holds an end portion of the joint member. , Comprising a plurality of elastically deformable joint member holding claws provided so as to protrude in the axial direction, and elastically deforming each joint member holding claw radially outward by being elastically deformed radially inward The thing provided with the several nail
- the conventional fluid coupling retainer has the advantage that the coupling member can be sufficiently held and can be easily attached to and detached from the coupling member.
- the coupling member retaining claw is provided. There is a problem that it is difficult to elastically deform radially outward and it is difficult to apply to a large-diameter joint member.
- An object of the present invention is to provide a fluid coupling and a fluid coupling retainer that can be easily held and removed from the coupling member by the retainer even if the fluid coupling has a large diameter.
- a fluid coupling according to the present invention includes first and second coupling members having fluid passages communicating with each other, an annular gasket interposed between the butted end surfaces of both coupling members, a retainer that holds the gasket,
- the retainer includes an annular gasket holding portion that holds the gasket and an annular coupling member holding portion that holds either one of the coupling members.
- the retainer gasket holding portion and the gasket are coupled via a ring, and the retainer joint member retaining portion and the joint member are coupled via an elastic ring.
- a retainer for a fluid coupling according to the present invention is a retainer for a fluid coupling that holds an annular gasket interposed between butted end surfaces of a first joint member and a second joint member that have fluid passages communicating with each other.
- An annular groove is formed in the inner periphery of the holding part, an elastic ring is held in the groove, and the gasket is held by the gasket holding part via the ring.
- the retainer is, for example, an integrated product having an inverted L-shaped cross section composed of a small-diameter portion and a large-diameter portion having a larger inner diameter.
- the small-diameter portion is a gasket holding portion and the large-diameter portion is a joint member holding portion .
- elastic ring means a ring that can be elastically deformed in the radial direction
- ring means a ring that is not limited to one that can be elastically deformed in the radial direction. And the like.
- the elastic ring it is possible to use a C-shaped snap ring with a part of the circular ring cut off and a circular cross section.
- the elastic ring is not limited to this, and various elastic materials such as an O-ring can be used.
- the ring-shaped member can be used.
- a metal ring for example, a washer is exemplified, but it is not limited to this.
- the “rigidity” of the rigid ring is not necessarily elastic at all, whereas the elastic ring can easily change its diameter by hand, but it can be changed by hand. It means you can't.
- the annular groove for holding the elastic ring can be provided in the joint member and the gasket, but is preferably formed in the inner periphery of the retainer gasket holding portion and the inner periphery of the joint member holding portion.
- a V-shaped shallow annular groove may be provided on the outer periphery of the gasket in order to further strengthen the coupling between the retainer and the gasket.
- the coupling member holding portion of the retainer and the coupling member are coupled via an elastic ring
- the gasket holding portion of the retainer and the gasket are coupled via an elastic ring. (The first form) and are connected via a rigid ring (the second form).
- each elastic ring is a snap ring in which a metal wire having a circular cross section is formed in a C shape.
- An annular groove may be formed on the inner periphery of the holding portion and the inner periphery of the joint member holding portion, and each elastic ring may be held in the groove.
- the first elastic ring fitted in the annular groove of the gasket holding portion is free and its inner diameter is smaller than the outer diameter of the gasket, and the diameter of the bottom surface of the annular groove is the free of the first elastic ring.
- the elastic ring is fixed to the outer periphery of the gasket by the elastic force to shrink in the radial direction of the first elastic ring, and the elastic ring does not fall off from the annular groove. It is preferable to be held by the gasket holding part.
- the second elastic ring fitted in the annular groove of the joint member holding portion is in a free state, the inner diameter thereof is smaller than the outer diameter of the joint member, and the diameter of the bottom surface of the annular groove is the second
- the outer diameter of the elastic ring is larger than the free outer diameter, and the elastic ring is fixed to the outer periphery of the joint member by the elastic force to shrink in the radial direction of the second elastic ring, and the elastic ring is dropped from the annular groove. It is preferable that the joint member holding part is held by the joint member.
- the elastic forces of the first elastic ring and the second elastic ring are adjusted as appropriate, and preferably, the elastic force (coupling of the first elastic ring for coupling the gasket holding portion of the retainer and the gasket) Force) is greater than the elastic force (binding force) of the second elastic ring that connects the joint member holding portion of the retainer and the joint member.
- the gasket includes a large diameter portion provided with a positioning portion protruding radially outward, a large diameter portion
- the gasket holding part has a fitting part that fits into the gasket positioning part and a positioning part that comes into contact with the gasket positioning part from the outside in the axial direction. Preferably it is. If it does in this way, the movement of the axial direction of the gasket with respect to a retainer at the time of hold
- the elastic ring connecting the joint member holding portion of the retainer and the joint member may be a snap ring in which a metal wire having a circular cross section is formed in a C shape.
- the elastic ring is in a free state, the inner diameter is smaller than the outer diameter of the joint member, and the diameter of the bottom surface of the annular groove is larger than the outer diameter of the elastic ring in the free state. It is preferable that the elastic ring is fixed to the outer periphery of the joint member by the elastic force to be contracted, and the joint member holding portion is held by the joint member so that the elastic ring does not fall off from the annular groove.
- the rigid ring that joins the gasket holding part of the retainer and the gasket is made of metal and has an inner diameter equal to the outer diameter of the large diameter part of the gasket and an inner diameter of the joint member holding part of the retainer. It is preferable that they have equal outer diameters, are press-fitted into the large-diameter portion of the gasket and the joint member holding portion of the retainer, and are brought into contact with the positioning portion of the gasket and the fitting portion of the retainer.
- the rigid ring is press-fitted into the retainer gasket holding portion and the gasket, respectively, and thereby the retainer gasket holding portion and the gasket are coupled via the rigid ring.
- the degree of fitting may be an interference fit or an intermediate fit.
- a small step portion (protrusion) for preventing the removal may be provided on the gasket holding portion of the retainer so that the fitting between the two is a clearance fit.
- the gasket is provided with a positioning portion for positioning the fitted rigid ring.
- the gasket When the joint is assembled, the gasket is held in advance by the retainer, and the gasket is retained and held by any one of the joint members, so that the gasket is mounted and positioned.
- the joint member is formed with, for example, a gasket holding annular projection having an arcuate cross section that first contacts the gasket and deforms it.
- the gasket is, for example, provided with a circular passage in the center of a disc (a flat surface in which both sides of the gasket are perpendicular to the axial direction), but is not limited thereto. Absent.
- an annular recess corresponding to the annular protrusion of the joint member may be formed on the gasket, or an annular protrusion may be provided on the gasket so that the butted end surface of the joint member is a flat surface.
- the screw means can have various configurations.
- both of the joint members are formed by a cap nut formed in one of the first and second joint members and screwed to the thread of the joint member.
- the first and second joint members are both sleeves in which the male thread portion is not formed, and both the joint members are coupled by the male thread member and the cap nut which are separate members. May be.
- the joint members may be formed such that a bolt insertion hole is formed on one side and a female thread portion is formed on the other side, and the joint members may be coupled by a bolt.
- the joint member is held via the elastic ring held by the fitting member holding portion of the retainer, and the gasket is held by the gasket holding portion of the retainer via the ring. Therefore, the gasket is securely held by the retainer, and the holding of the joint member by the retainer with gasket and the attachment / detachment of the retainer with gasket to the joint member are facilitated.
- 1 is a longitudinal sectional view showing a fluid coupling according to a first embodiment of the present invention. It is a disassembled perspective view which shows 1st Embodiment of the retainer for fluid couplings by this invention. It is an expanded longitudinal cross-sectional view which shows 2nd Embodiment of the fluid coupling by this invention and the retainer for fluid couplings.
- the fluid coupling (1) includes first and second coupling members (2) (3) having fluid passages (2a) (3a) communicating with each other, An annular gasket (4) interposed between the butted end faces of the joint member (2) (3), and a retainer (5) which holds the gasket (4) and is held by the first joint member (2); And screw means (6) for joining the joint members (2) and (3) to each other.
- the first joint member (2) arranged on the left side and the second joint member (3) arranged on the right side are sleeves having the same shape, and flange portions (11), (12) Are provided.
- the gasket (4) is made of a metal such as a nickel alloy, and this is plastically deformed between the butted end surfaces of both joint members (2) and (3) so as to obtain a sealing property.
- An annular gasket pressing projection (13) (14) is provided on the abutting end face of each joint member (2) (3).
- FIG. 1 shows a properly tightened state, and the gasket pressing protrusions (13) and (14) bite into both sides of the gasket (4), so that a strong sealing property is secured and each joint member ( 2) Since the portions where the gasket pressing protrusions (13) and (14) of (3) are not provided are in close contact with both surfaces of the gasket (4), the sealing performance is further improved.
- the gasket (4) is held by the retainer (5), and the retainer (5) is held by the first joint member (2), thereby positioning the gasket.
- the inner diameter of the gasket (4) is made equal to the inner diameter of each joint member (2) (3).
- the flange part (11) (12) of each joint member (2) (3) has an outer diameter larger than the outer diameter of the gasket (4), and the abutting surface of the flange part (11) (12) Protruding portions (11a) and (12a) facing inward in the retainer (5) with a slight gap are provided, and at the axially inner ends of the flange portions (11) and (12). Are provided with radially outward projecting portions (11b) (12b) whose outer diameter is substantially equal to the outer diameter of the retainer (5).
- the screw means (6) includes a male screw member (7) fitted to the first joint member (2) and abutted from the left on the left surface of the flange portion (11) of the first joint member (2); A cap nut fitted into the joint member (3) and screwed into the screw member (7) from the right side, and the top wall being abutted from the right side on the right side of the flange part (12) of the second joint member (3) (8)
- the retainer (5) includes an annular gasket holding portion (21) for holding the gasket (4) and a joint member holding portion (22) for holding the first joint member (2). And more.
- the inner diameter of the gasket holding part (21) is substantially equal to the outer diameter of the gasket (4), and the inner diameter of the joint member holding part (22) is the right end of the flange part (11) of the first joint member (2). It is almost equal to the outer diameter of the part.
- Annular grooves (23) and (24) are formed on the inner periphery of the gasket holding part (21) and the inner periphery of the joint member holding part (22), respectively.
- the first groove is formed in the grooves (23) and (24).
- the second elastic rings (25) and (26) are held.
- the first and second elastic rings (25) and (26) are called snap rings in which a metal wire having a circular cross section is formed in a C shape, and has radial elasticity.
- the first elastic ring (25) fitted in the annular groove (23) of the gasket holding portion (21) is free and has an inner diameter smaller than the outer diameter of the gasket (4).
- the gasket (4) is held by the gasket holding part (21) by the elastic force that tends to shrink in the radial direction of the elastic ring (25).
- the diameter of the bottom surface of the annular groove (23) is larger than the outer diameter of the first elastic ring (25) in the free state, and the movement of the first elastic ring (25) outward in the radial direction is not suppressed. . Accordingly, the gasket (4) and the retainer (5) are maintained in an integrated state when no force is applied from the outside, and the gasket (4) is attached to and detached from the retainer (5). It can be easily performed by moving the gasket (4) in the axial direction with respect to the retainer (5) against the frictional force (binding force) accompanying the elastic force of the elastic ring (25).
- the second elastic ring (25) fitted in the annular groove (24) of the joint member holding part (22) is free and has an inner diameter of the flange part (11) of the first joint member (2).
- the joint member holding portion (22) is brought into contact with the flange portion (11) of the first joint member (2) by the elastic force which is smaller than the outer diameter of the second elastic ring and tends to contract in the radial direction of the second elastic ring (25). Is retained.
- the diameter of the bottom surface of the annular groove (24) is larger than the free outer diameter of the second elastic ring (25), and the movement of the second elastic ring (25) outward in the radial direction is not suppressed. .
- the retainer (5) when the retainer (5) is attached to and detached from the first joint member (2), the retainer (5) is attached to the first joint member (2) against the frictional force (binding force) associated with the elastic force of the second elastic ring (25). It can be easily performed only by moving the joint member (2) in the axial direction, and after assembling the joint, after the retainer (5) holding the gasket (4) is attached to the first joint member (2) Then, without worrying about the retainer (5) holding the gasket (4) coming off, the subsequent work (after the second joint member (3) was brought into contact with the gasket (4), the male screw member (7) and the cap nut (8 ) Can be screwed together.
- the gasket (4) is prepared in a state where it is held in advance by the retainer (5) when the joint is assembled, and the gasket (4) is mounted and positioned by holding the retainer (5) on the first joint member (2). Is done appropriately.
- the retainer (5) is removed from the first joint member (2) when the joint is disassembled, the gasket (4) is removed while being held by the retainer (5). If replacement is required, the old gasket ( 4) is removed from the retainer (5) and replaced with a new one.
- the elastic force of the first elastic ring (25) and the second elastic ring (26) is such that the retainer (5) and the gasket (4) can be easily attached and detached via the first elastic ring (25).
- the retainer (5) and the joint member (2) are appropriately adjusted so that the retainer (5) and the joint member (2) are easily attached and detached through the second elastic ring (26), but preferably the first elastic ring (
- the elastic force (binding force) of 25) is larger than the elastic force (binding force) of the second elastic ring (26).
- the first elastic ring (25) may be replaced with a metal rigid ring.
- This embodiment is shown in FIG.
- the first and second joint members (2) (3) and the screw means (6) have the same configuration as in the first embodiment, and the shapes of the gasket (34) and the retainer (35) are the same. Is different from that of the first embodiment.
- symbol is attached
- the gasket (34) includes a large-diameter portion (41) provided with a positioning portion (42) protruding radially outward, and a small-diameter portion (43) having the same inner diameter as the large-diameter portion (41) and a small outer diameter. It consists of.
- the positioning portion (42) is provided at a boundary portion with the small diameter portion (43).
- the retainer (35) includes an annular gasket holding part (51) for holding the gasket (34) and a joint member holding part (52) for holding the first joint member (2).
- the gasket holding portion (51) has an inner diameter substantially equal to the outer diameter of the positioning portion (42) of the gasket (34) and is fitted to the fitting portion (53), and the fitting portion (53 ) Projecting inward in the radial direction from the right end portion of the gasket (34) and a positioning portion (54) contacting the positioning portion (42) of the gasket (34) from the right (axially outer side).
- the inner diameter of the joint member holding portion (52) is substantially equal to the outer diameter of the right end portion of the flange portion (11) of the first joint member (2).
- a groove (55) is formed.
- An elastic ring (56) is held in the annular groove (55).
- the elastic ring (56) is called a snap ring in which a metal wire having a circular cross section is formed in a C shape, and has elasticity in the radial direction.
- the retainer (35) and the gasket (34) are connected by a metal washer (57) which is a rigid ring. That is, the washer (57) is a metal ring having a square cross section, and an inner diameter equal to the outer diameter of the large diameter portion (41) of the gasket (34) and an inner diameter of the joint member holding portion (52) of the retainer (35).
- the outer diameter of the gasket (34) is press-fitted into the large-diameter portion (41) of the gasket (34) and the joint member holding portion (52) of the retainer (35), and the positioning portion (42) of the gasket (34). And the left surface of the fitting portion (53) of the retainer (35).
- the elastic ring (56) fitted in the annular groove (55) of the joint member holding portion (52) is free and its inner diameter is the outer diameter of the flange portion (11) of the first joint member (2).
- the joint member holding portion (52) is held by the flange portion (11) of the first joint member (2) by an elastic force which is smaller than the elastic ring (56) and tends to contract in the radial direction.
- the diameter of the bottom surface of the annular groove (55) is larger than the outer diameter of the elastic ring (56) in the free state, and the movement of the elastic ring (56) outward in the radial direction is not suppressed.
- the retainer (35) when the retainer (35) is attached to or detached from the first joint member (2), the retainer (35) is attached to the first joint member (the binding force) against the frictional force (binding force) associated with the elastic force of the elastic ring (56). 2) It can be easily performed only by moving it in the axial direction.
- the retainer (35) holding the gasket (34) is attached to the first joint member (2). 34) After the retainer (35) that holds the cap is not dropped off, the subsequent work (after fitting the second joint member (3) to the gasket (34), the male screw member (7) and the cap nut (8) Screwing).
- the gasket (34) is prepared in a state of being held in advance by the retainer (35) when the joint is assembled, and the gasket (34) is mounted and positioned by holding the retainer (35) on the first joint member (2). Is done appropriately.
- the retainer (35) is removed from the first joint member (2) when the joint is disassembled, the gasket (34) is removed while being held by the retainer (35). If replacement is required, the old gasket ( 34) is removed from the retainer (35) and replaced with a new one.
- the present invention in a fluid coupling that obtains sealing properties by plastic deformation of a metal gasket, the problem of increasing the diameter of the retainer is eliminated, so the performance of a large-diameter fluid coupling is improved and its use The range can be expanded.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Pressure Members (AREA)
- Gasket Seals (AREA)
Abstract
Description
(2) 第1継手部材
(3) 第2継手部材
(2a)(3a) 流体通路
(4) ガスケット
(5) リテーナ
(6) ねじ手段
(21) ガスケット保持部
(22) 継手部材保持部
(23)(24) 環状溝
(25) 第1の弾性リング
(26) 第2の弾性リング
(34) ガスケット
(35) リテーナ
(51) ガスケット保持部
(52) 継手部材保持部
(55) 環状溝
(56) 弾性リング
(57) 金属製ワッシャー(剛性リング)
Claims (20)
- 互いに連通する流体通路を有している第1および第2の継手部材と、両継手部材の突き合わせ端面間に介在させられる円環状ガスケットと、ガスケットを保持するリテーナと、継手部材同士を結合するねじ手段とを備えている流体継手において、リテーナは、ガスケットを保持する円環状のガスケット保持部と、いずれか一方の継手部材を保持する円環状の継手部材保持部とを有し、リテーナのガスケット保持部とガスケットとがリングを介して結合されているとともに、リテーナの継手部材保持部と継手部材とが弾性リングを介して結合されていることを特徴とする流体継手。
- リテーナのガスケット保持部とガスケットとが弾性リングを介して結合されている請求項1の流体継手。
- リテーナの継手部材保持部と継手部材とを結合する弾性リングは、断面円形の金属製線材がC状に形成されたスナップリングであり、継手部材保持部の内周に環状溝が形成されて、同溝内に弾性リングが保持されている請求項1の流体継手。
- リテーナのガスケット保持部とガスケットとを結合する弾性リングは、断面円形の金属製線材がC状に形成されたスナップリングであり、ガスケット保持部の内周に環状溝が形成されて、同溝内に弾性リングが保持されている請求項2の流体継手。
- 継手部材保持部の環状溝に嵌め入れられている弾性リングは、フリーの状態で、その内径が継手部材の外径よりも小さく、環状溝の底面の径は、弾性リングのフリーの状態の外径より大きくなされており、この弾性リングの径方向に収縮しようとする弾性力によって、弾性リングが継手部材外周に固定され、弾性リングが環状溝から脱落しないことで継手部材保持部が継手部材に保持されている請求項3の流体継手。
- ガスケット保持部の環状溝に嵌め入れられている弾性リングは、フリーの状態で、その内径がガスケットの外径よりも小さく、環状溝の底面の径は、弾性リングのフリーの状態の外径より大きくなされており、この弾性リングの径方向に収縮しようとする弾性力によって、弾性リングがガスケット外周に固定され、弾性リングが環状溝から脱落しないことでガスケットがガスケット保持部に保持されている請求項4の流体継手。
- ガスケット保持部の環状溝に嵌め入れられている弾性リングの弾性力が継手部材保持部の環状溝に嵌め入れられている弾性リングの弾性力よりも大きいものとされている請求項6の流体継手。
- リテーナのガスケット保持部とガスケットとが剛性リングを介して結合されている請求項1の流体継手。
- ガスケットは、径方向外方に突出する位置決め部が設けられた大径部と、大径部と内径が同じで外径が小さい小径部とからなり、ガスケット保持部は、ガスケットの位置決め部に嵌め合わされる嵌合部と、ガスケットの位置決め部に軸方向外側から当接する位置決め部とを有している請求項8の流体継手。
- 剛性リングは、金属製で、ガスケットの大径部の外径に等しい内径と、リテーナの継手部材保持部の内径に等しい外径とを有しており、ガスケットの大径部およびリテーナの継手部材保持部に圧入されて、ガスケットの位置決め部およびリテーナの嵌合部に当接させられている請求項9の流体継手。
- 互いに連通する流体通路を有している第1継手部材と第2継手部材との突き合わせ端面間に介在させられる円環状ガスケットを保持する流体継手用リテーナであって、ガスケットを保持する円環状のガスケット保持部と、ガスケット保持部の内径よりも大径の内径を有しいずれか一方の継手部材を保持する円環状の継手部材保持部とを有し、継手部材保持部の内周に環状溝が形成されて、同溝内に弾性リングが保持されており、ガスケットがリングを介してガスケット保持部に保持されていることを特徴とする流体継手用リテーナ。
- ガスケット保持部とガスケットとが弾性リングを介して結合されている請求項11の流体継手用リテーナ。
- リテーナの継手部材保持部と継手部材とを結合する弾性リングは、断面円形の金属製線材がC状に形成されたスナップリングである請求項11の流体継手用リテーナ。
- リテーナのガスケット保持部とガスケットとを結合する弾性リングは、断面円形の金属製線材がC状に形成されたスナップリングであり、ガスケット保持部の内周に環状溝が形成されて、同溝内に弾性リングが保持されている請求項12の流体継手用リテーナ。
- 継手部材保持部の環状溝に嵌め入れられている弾性リングは、フリーの状態で、その内径が継手部材の外径よりも小さく、環状溝の底面の径は、弾性リングのフリーの状態の外径より大きくなされており、この弾性リングの径方向に収縮しようとする弾性力によって、弾性リングが継手部材外周に固定され、弾性リングが環状溝から脱落しないことで継手部材保持部が継手部材に保持されている請求項13の流体継手用リテーナ。
- ガスケット保持部の環状溝に嵌め入れられている弾性リングは、フリーの状態で、その内径がガスケットの外径よりも小さく、環状溝の底面の径は、弾性リングのフリーの状態の外径より大きくなされており、この弾性リングの径方向に収縮しようとする弾性力によって、弾性リングがガスケット外周に固定され、弾性リングが環状溝から脱落しないことでガスケットがガスケット保持部に保持されている請求項14の流体継手用リテーナ。
- ガスケット保持部の環状溝に嵌め入れられている弾性リングの弾性力が継手部材保持部の環状溝に嵌め入れられている弾性リングの弾性力よりも大きいものとされている請求項16の流体継手用リテーナ。
- ガスケット保持部とガスケットとが剛性リングを介して結合されている請求項11の流体継手用リテーナ。
- ガスケットは、径方向外方に突出する位置決め部が設けられた大径部と、大径部と内径が同じで外径が小さい小径部とからなり、ガスケット保持部は、ガスケットの位置決め部に嵌め合わされる嵌合部と、ガスケットの位置決め部に軸方向外側から当接する位置決め部とを有している請求項18の流体継手用リテーナ。
- 剛性リングは、金属製で、継手部材保持部の内径に等しい外径とガスケットの大径部の外径に等しい内径とを有しており、継手部材保持部およびガスケットの大径部に圧入されて、嵌合部およびガスケットの位置決め部に当接させられている請求項19の流体継手用リテーナ。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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US12/736,492 US9068679B2 (en) | 2008-04-22 | 2009-04-21 | Fluid coupling and retainer for fluid coupling |
CN200980114074.5A CN102016364B (zh) | 2008-04-22 | 2009-04-21 | 流体接头以及流体接头用保持器 |
KR1020107023445A KR101230671B1 (ko) | 2008-04-22 | 2009-04-21 | 유체 커플링 및 유체 커플링용 리테이너 |
JP2010509177A JP5826490B2 (ja) | 2008-04-22 | 2009-04-21 | 流体継手および流体継手用リテーナ |
IL208776A IL208776A0 (en) | 2008-04-22 | 2010-10-17 | Fluid coupling and retainer for fluid coupling |
US14/718,306 US9556980B2 (en) | 2008-04-22 | 2015-05-21 | Fluid coupling and retainer for fluid coupling |
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US12/736,492 A-371-Of-International US9068679B2 (en) | 2008-04-22 | 2009-04-21 | Fluid coupling and retainer for fluid coupling |
US14/718,306 Division US9556980B2 (en) | 2008-04-22 | 2015-05-21 | Fluid coupling and retainer for fluid coupling |
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WO2009131105A1 true WO2009131105A1 (ja) | 2009-10-29 |
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PCT/JP2009/057884 WO2009131105A1 (ja) | 2008-04-22 | 2009-04-21 | 流体継手および流体継手用リテーナ |
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US (2) | US9068679B2 (ja) |
JP (1) | JP5826490B2 (ja) |
KR (1) | KR101230671B1 (ja) |
CN (1) | CN102016364B (ja) |
IL (1) | IL208776A0 (ja) |
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Also Published As
Publication number | Publication date |
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KR101230671B1 (ko) | 2013-02-07 |
CN102016364A (zh) | 2011-04-13 |
IL208776A0 (en) | 2010-12-30 |
US9556980B2 (en) | 2017-01-31 |
US20110031745A1 (en) | 2011-02-10 |
JPWO2009131105A1 (ja) | 2011-08-18 |
KR20100132042A (ko) | 2010-12-16 |
US20150252923A1 (en) | 2015-09-10 |
US9068679B2 (en) | 2015-06-30 |
TWI475171B (zh) | 2015-03-01 |
CN102016364B (zh) | 2016-07-06 |
JP5826490B2 (ja) | 2015-12-02 |
TW201002971A (en) | 2010-01-16 |
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