WO2003081112A1 - Attache de raccord pour tuyaux, structure de fixation de cette attache de raccord pour tuyaux et tuyau associe - Google Patents
Attache de raccord pour tuyaux, structure de fixation de cette attache de raccord pour tuyaux et tuyau associe Download PDFInfo
- Publication number
- WO2003081112A1 WO2003081112A1 PCT/JP2002/009614 JP0209614W WO03081112A1 WO 2003081112 A1 WO2003081112 A1 WO 2003081112A1 JP 0209614 W JP0209614 W JP 0209614W WO 03081112 A1 WO03081112 A1 WO 03081112A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hose
- socket
- elastic tube
- tube layer
- projection
- Prior art date
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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
- F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
- F16L33/207—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose
- F16L33/2071—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member
- F16L33/2073—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members only a sleeve being contracted on the hose the sleeve being a separate connecting member directly connected to the rigid member
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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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/20—Undivided rings, sleeves or like members contracted on the hose or expanded in the hose by means of tools; Arrangements using such members
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49428—Gas and water specific plumbing component making
- Y10T29/49435—Flexible conduit or fitting therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49833—Punching, piercing or reaming part by surface of second part
- Y10T29/49835—Punching, piercing or reaming part by surface of second part with shaping
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49909—Securing cup or tube between axially extending concentric annuli
- Y10T29/49913—Securing cup or tube between axially extending concentric annuli by constricting outer annulus
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49925—Inward deformation of aperture or hollow body wall
- Y10T29/49927—Hollow body is axially joined cup or tube
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53996—Means to assemble or disassemble by deforming
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/49—Member deformed in situ
- Y10T403/4966—Deformation occurs simultaneously with assembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/49—Member deformed in situ
- Y10T403/4974—Member deformed in situ by piercing
Definitions
- the present invention relates to a hose joint fitting for connecting a hose to a device and a mounting structure of the hose joint fitting and the hose. More specifically, in a crimp-type hose joint fitting, a sealing property is provided while taking advantage of its advantages.
- the present invention relates to hose fittings and hose fittings to be improved.
- a crimp type fitting as shown in Fig. 7 as a hose fitting for connecting a hose to a device.
- This joint fitting has a cylindrical two-piece 11 and a cylindrical socket 1 arranged on the outer peripheral side.
- a ring-shaped hose holding protrusion 13 extending in the circumferential direction and having the same height is provided at predetermined intervals in the longitudinal direction of the socket.
- the socket 1 is crimped from the outer peripheral side with a plurality of crimping claws 14 so that the socket 1 is squeezed and reduced in diameter, and between the nipple 11 and the reduced diameter socket 12
- the end 16a of the inserted hose 16 is fastened and fixed, and the hose 16 is attached.
- the above-described crimp-type hose joint fitting has an advantage that the hose 16 can be quickly and easily fastened by the caulking claw 14, so that the hose mounting workability is excellent, and the working cost is reduced. can do.
- various cap shapes can be adopted, and an angle can be easily set when the hose attached to the elbow fitting is fastened.
- the crimping type hose joint fitting has the above-mentioned excellent advantages because the pressing force between the inner surface of the hose 16 and the nipple 11, that is, the sealing property; Nevertheless, use at low pressure was limited.
- An object of the present invention is to provide a hose joint fitting of a crimp type capable of improving the sealing property without impairing the above-mentioned excellent advantages, and a mounting structure of the hose joint fitting and the hose.
- a hose joint fitting of the present invention has a cylindrical socket disposed on an outer peripheral side of a cylindrical nipple, and a plurality of annular sockets extending in a circumferential direction on an inner peripheral surface of the socket.
- Hose holding projections are provided at predetermined intervals in the longitudinal direction of the socket, and a hose formed by laminating a reinforcing layer on the outer peripheral side of the elastic tube layer is inserted between the nipple and the socket, and the socket is crimped. Accordingly, in the hose fitting for fixing the hose between the socket and the nipple, at least one of the plurality of hose gripping projections is smaller than the other hose gripping projections. It is characterized in that it protrudes to the inner peripheral side of the socket.
- Another hose joint fitting of the present invention is such that a cylindrical socket is disposed on the outer peripheral side of a cylindrical nipple, and a reinforcing layer is laminated between the socket and the nipple on the outer peripheral side of the elastic tube layer.
- a hose joint fitting for fixing the hose between the socket and the nipple by inserting a hose formed by crimping the socket and extending circumferentially on an inner peripheral surface of the socket.
- Still another hose joint fitting of the present invention comprises a cylindrical socket disposed on an outer peripheral side of a cylindrical nipple, and a plurality of annular hose gripping members extending in a circumferential direction on an inner peripheral surface of the socket. Protrusions are provided at predetermined intervals in the longitudinal direction of the socket, a hose having a reinforcing layer laminated on the outer peripheral side of the elastic tube layer is inserted between the nipple and the socket, and the socket is swaged.
- at least one annular projection extending in the circumferential direction is provided on the outer peripheral surface of the nipple.
- Still another hose joint fitting of the present invention has a cylindrical socket disposed on the outer peripheral side of a cylindrical nipple, and a reinforcing layer disposed between the socket and the two nipples on the outer peripheral side of the elastic tube layer.
- a hose joint fitting for fixing the hose between the socket and the nipple by inserting a hose formed by laminating the hose and crimping the socket, and extending circumferentially around the outer peripheral surface of the two nipples.
- the elastic tube layer is compressed at a compression rate of 55% or more. It is characterized in that it is configured to have a compressible projection height.
- the hose joint fitting and the hose mounting structure of the present invention include a cylindrical socket disposed on an outer peripheral side of a cylindrical nipple, and a plurality of annular sockets extending circumferentially on an inner peripheral surface of the socket.
- a hose formed by laminating a reinforcing layer on the outer peripheral side of an elastic tube layer is provided between the socket and the nipple of the hose joint fitting having the hose gripping protrusions provided at predetermined intervals in the longitudinal direction of the socket.
- a hose coupling fitting and a hose mounting structure in which the hose is fixed to the hose coupling fitting by inserting and crimping the socket, wherein at least one of the plurality of hose gripping projections is a hose gripping projection.
- the other hose gripping protrusion It is characterized in that it is made to bite deeper into the hose than to rise.
- Another hose joint fitting and hose mounting structure of the present invention includes an elastic tube between the socket and the two nipples of the hose joint fitting in which a cylindrical socket is disposed on the outer peripheral side of a cylindrical nipple.
- a hose joint fitting in which a hose formed by laminating a reinforcing layer on the outer peripheral side of the layer and the hose is fixed to the hose joint fitting by caulking the socket is provided, and the hose has a mounting structure.
- An annular hose gripping projection extending in the circumferential direction is provided on the inner peripheral surface, and the hose gripping projection is provided in the hose such that the compression ratio of the elastic tube layer is 55% or more. It is characterized by being bitten.
- the hose gripping protrusion having a high protruding height b, or the annular protrusion provided on the outer peripheral surface of the nipple is made to bite into the hose, and the hose is further compressed at that point.
- the elastic body of the elastic tube layer displaced by the projections can increase the pressure of the hose against the outer surface of the nipple at the part where crimping is insufficient due to the gap, thus improving the sealing performance.
- FIG. 1 is a front view showing an example of a hose joint fitting of the present invention in a state in which a hose is attached and a section above a center line is sectioned.
- FIG. 2 is a cross-sectional view taken along the line II-II of FIG.
- FIG. 3 is a front view showing another example of the hose joint fitting of the present invention in a state in which a hose is attached, and a cross section of the hose joint fitting above a center line is shown.
- FIG. 4 shows still another example of the hose joint fitting of the present invention in which a hose is attached. It is a principal part expanded sectional view shown in a state.
- FIG. 5 is an enlarged cross-sectional view of a main part showing still another example of the hose coupling fitting of the present invention with a hose attached.
- FIG. 6 (a) is an enlarged cross-sectional view of a main part showing still another example of the hose joint fitting used for mounting the hose joint fitting and the hose of FIG.
- FIG. 6 (b) is an enlarged sectional view of a main part showing a state in which the hose is attached by caulking the hose fitting of FIG. 6 (a) with a caulking claw.
- FIG. 7 is a front view showing a cross section of a conventional crimp-type hose joint fitting with a hose attached thereto, the section being above the center line.
- FIG. 8 is a sectional view taken along a line VIII-VIII of FIG.
- M 1 shows an example of the hose fitting of the present invention.
- a hose H formed by laminating a reinforcing layer H2 on the outer peripheral side of an elastic tube layer H1 is attached to a hose joint fitting M1.
- the hose fitting M1 includes a metal cylindrical nipple 1 and a metal cylindrical socket 2 disposed on an outer peripheral side thereof. Niff. A plurality of annular grooves 3 extending in the circumferential direction are provided at predetermined intervals along the longitudinal direction of the nipple on the outer peripheral surface 1a of the hose 1 on the hose insertion side, and are attached to these grooves 3. The inner circumferential side of the elastic tube layer H1 of the hose H is locked.
- a thread 1X is formed on the outer peripheral surface 1b of the nipple 1 on the hose reentrant side, and the hose fitting M1 is attached to the device via the thread 1X.
- An annular groove 4 extending in the circumferential direction is formed on the outer peripheral surface 1 c of the central portion of the nipple 1, and the end 2 a of the socket 2 on the side opposite to the hose of the socket 2 is attached to the annular groove 4. .
- a plurality of annular hose gripping projections 5 extending in the circumferential direction are provided on the inner peripheral surface 2 b of the socket 2 facing the outer peripheral surface 1 a of the nipple 1 on the hose insertion side along the longitudinal direction of the socket. It is provided at intervals.
- the hose gripping projection 5 A that is positioned furthest from the groove 3 on the side opposite to the hose and opposite the hose is the socket 2 than the other hose gripping projections 5 B. Projecting to the inner peripheral side of the, and the height of the projection is increased.
- the other hose gripping projections 5B have the same projection height as the conventional one.
- the hose gripping projection 5A inserts the end H3 of the hose H between the nipple 1 and the socket 2 and tightens the socket 2 to secure the hose.
- H 2 has a projection height that allows it to bite into elastic tube layer H 1 to break elastic tube layer H 1 and press against outer peripheral surface 1 a of nipple 1.
- the socket 2 is swaged from the outer peripheral side with a plurality of swaging claws 6, and the nipple 1 and the reduced diameter socket 2 are connected. Fasten the end H 3 of the hose H inserted between them.
- the hose gripping projection 5A having a raised projection height penetrates deeper into the hose H than the other hose gripping projections 5B, whereby the reinforcing layer H bites into the elastic tube layer H1 and that portion.
- the elastic body is pushed away and fractured, and the reinforcing layer H 2 is directly pressed against the outer peripheral surface 1 a of the nipple 1.
- the height of the hose gripping projection 5 A which is located closest to the hose insertion side, is higher than that of the attached hose H. It is preferable in terms of durability because it can reduce the load on the hose gripping projection 5A, which has an increased projection height when bent and used.However, the projection height of the other hose gripping projections 5B is increased. However, the same effect as described above can be obtained.
- the projection height of the plurality of hose gripping projections 5 may be increased as necessary, and at least one of the hose gripping projections 5 may be connected to the hose gripping projection having a high projection height as described above. It may be formed.
- increasing the projection height of the plurality of hose gripping projections 5 it is preferable to sequentially increase the height from the hose gripping projections 5 located closest to the hose on the side opposite to the insertion side.
- the projection height of the hose gripping projection 5 A is such that the elastic tube layer H 1 is broken and the reinforcing layer H 2 can be pressed against the outer peripheral surface 1 a of the nipple 1, that is, the hose H is the nipple 1.
- Setting the compression ratio of the elastic tube layer H 1 to 100% (when there is no elastic tube layer) when tightening the clamp between the cable and the socket 2 will improve the hose fitting resistance.
- the compression ratio of the elastic tube layer H1 is preferably set to 55% or more.
- the elastic tube layer H is compressed by the inner peripheral surface 2b of the socket 2 adjacent to the hose gripping projection 5A. Making the elastic tube layer H1 a compressible protrusion height at a compression ratio higher by 10% or more than the compression ratio of 1 is good for further improving the sealing performance.
- FIG. 3 shows another example of the hose joint fitting of the present invention in a state where it is attached to a hose H.
- the hose fitting M2 is the same as the hose fitting M1 shown in FIG. 1 except that the inner peripheral surface 2b of the socket 2 is provided with only the hose gripping projection 5A having a raised height.
- the hose gripping protrusion 5A bites deep into the hose H, whereby the reinforcing layer H2 bites into the elastic tube layer H1 and pushes away the elastic body at that portion to break the nipple.
- the reinforcing layer H2 is directly pressed into contact with the outer peripheral surface 1a of 1.
- the protrusion height of the hose gripping projection 5A in Fig. 3 is set as shown in the figure.
- the elastic tube layer H1 is broken when the socket 2 is crimped, as shown in the figure, in order to greatly improve the hose fitting resistance. It is preferable to have a protrusion height that allows the reinforcing layer H 2 to be pressed against the outer peripheral surface 1 a of the nipple 1, but the sealing effect is maintained while maintaining the same hose fitting resistance as before.
- the elastic tube layer H1 should have a protrusion height such that the compressibility of the elastic tube layer H1 is 55% or more.
- a protrusion capable of compressing the elastic tube layer H1 at a compression ratio higher than the compression ratio of the elastic tube layer H1 by which the inner peripheral surface 2b of the socket 1 is compressed by 10% or more. It is good to make it height.
- FIG. 4 shows still another example of the hose joint fitting of the present invention.
- the hose joint fitting M3 is provided on the inner peripheral surface 1b of the socket 2 in the hose joint fitting M1 of FIG. Set the protrusion height of all the hose gripping protrusions 5 as before.
- one annular projection 7 extending in the circumferential direction is provided on the outer peripheral surface 1a of the nipple 1 on the hose inlet side.
- the projection 7 is disposed on the side opposite to the hose from the groove 3 and facing the hose gripping projection 5X located closest to the side opposite to the hose.
- the pressing force of the crimped portion 2 which is insufficiently crimped by the displaced elastic body of the elastic tube layer H 1 can be increased.
- the sealability can be improved, and the same effect as in the above-described embodiment can be obtained.
- the protrusion height of the protrusion 7 is such that the elastic tube layer H 1 is broken and the reinforcing layer H 2 is brought into pressure contact with the reinforcing layer H 2 in order to increase the resistance of the hose fitting to be removed.
- the height of the protrusions it is preferable in terms of the above, in order to effectively improve the sealing property, it is preferable to set the height of the protrusions so that the compression ratio of the elastic tube layer H1 can be 55% or more, as in the embodiment of FIG.
- FIG. 5 shows still another example of the hose joint fitting of the present invention.
- the hose joint fitting M4 is the same as the hose joint fitting M3, except that the inner peripheral surface 2b of the socket 2 has a hose gripping projection.
- the projection 7 is provided on the nipple 1 without providing the projection 5.
- Hose H was attached by caulking socket 2. At this time, the protrusion 7 penetrates deeply into the hose H in the same manner as above, thereby pressing against the reinforcing layer H2, and the reinforcing layer H2 is directly clamped by the socket 2 and the protrusion 7.
- the hose gripping projection 5 need not be provided. Even with the hose fitting fitting M4 having such a configuration, the same effect as described above can be obtained.
- the protrusion height of the protrusion 7 in order to greatly increase the hose fitting resistance is to break the elastic tube layer H1 as shown in the figure, and to change the protrusion 7 to the inner peripheral surface 2 of the socket 2. It is preferable to have a protrusion height that allows pressure contact with b.However, in order to effectively improve the sealability while ensuring the same hose fitting resistance as before, the implementation of FIG. As in the case of the embodiment, the elastic tube layer H1 may have a protrusion height such that the compressibility of the elastic tube layer H1 is 55% or more.
- the elastic tube layer has a compression ratio 10% or more higher than the compression ratio of the elastic tube layer H1 in which the inner peripheral surface 1b of the socket 2 adjacent to the projection 7 compresses. It is good to set the height of H1 to a compressible height.
- the above effect can be sufficiently achieved by providing one projection 7 in FIGS. 4 and 5 described above. However, if necessary, a plurality of projections 7 may be provided. Good.
- Fig. 6 shows the hose joint fitting and hose mounting structure shown in Fig. 1 formed using other hose joint fittings M5 and swaging pawls 6. However, this figure shows an example in which three grooves 3 and four hose holding projections 5 are formed.
- the hose joint fitting M5 has a flat configuration in which the hose gripping projection 5 is not provided on the inner peripheral surface 2b of the socket 2 in the hose and the joint fitting M1 in FIG.
- Each of the caulking claws 6 has a plurality of (four in the figure) pressing projections 6, X protruding from the pressing surface 6, a for pressing the socket 2. Multiple pushes In the pressure projections 6, X, the pressing projection 6'XA located closest to the hose insertion side has a higher projecting height than the other pressing projections 6'XB. The other pressing protrusions 6'XB have the same protrusion height.
- the reinforcing layer H 2 bites into the elastic tube layer H 1 and pushes away the elastic body at that portion to break it, and the reinforcing layer H 2 directly presses against the outer peripheral surface 1 a of the nipple 1 to increase the protrusion height.
- the mounting structure of the hose H and the hose joint fitting M5 in which the hose holding projection 5A is deeper into the hose H than the other hose holding projections 5B can be obtained.
- one hose gripping projection 5A is made to bite deeper into the hose H than the other hose gripping projections 5B.
- a plurality of pressing protrusions 6'XA having a higher protruding height may be provided on the caulking claws 6, so that the plurality of hose gripping protrusions 5 can be deeply cut into the hose H.
- the crimping claw 6 ' is configured to have only the pressing protrusion 6' XA having a raised protruding height, and using this, the hose thread metal fitting is used. It can be obtained by caulking and fixing the hose H between the nipple 1 and socket 2 of M5.
- the mounting structure as shown in FIG. 4 may be formed using a hose fitting M5.
- the hose joint fitting M5 provided with the protrusion 7 and the crimping claw 6, provided only with the protrusion 6'XB having the same protrusion height, are provided. use.
- the shape of the hose gripping projection 5 may be any shape as long as it can grip the fastened hose.
- the projection 7 may also have any projection shape as long as the above-described effect can be obtained, and for example, it may have a trapezoidal cross section or a sawtooth shape.
- the hose holding protrusions 5A and the protrusions 7 having the raised protrusion heights are separately provided, but the hose holding protrusions 5A and the protrusions 7 may be provided as necessary. Can also.
- any shape may be adopted as long as the inner peripheral side of the elastic tube layer H1 can be locked. .
- the plurality of grooves 3 are arranged.
- the grooves 3 may be used. 3 need not always be provided.
- the hose H attached to the hose fitting of the present invention includes a metal wire such as a steel wire, an organic fiber or an inorganic fiber on the outer peripheral side of an elastic tube layer H1 made of an elastic material such as a rubber resin.
- a hose in which a reinforcing layer H2 in which a reinforcing cord is braided or spirally arranged is preferably used.
- an elastic tube layer H1 made of a polytetrafluoroethylene resin or the like which is easily broken can be preferably used.
- the joint fittings 1 to 3 of the present invention having the configuration shown in FIG. 1 and the conventional joint fittings having the configuration shown in FIG. Each test fitting should have a 1 Omm inner diameter SAE 100 R14 standard hose (Society of Automotive Engineers. Inc. standard J51 /, 100 R series N0.14 Hose) were fastened to obtain the joints 1 to 3 of the present invention, the specimens 1 to 3 of the present invention having a hose attached thereto, and the conventional joint having the joint fittings and the hose attached thereto.
- SAE 100 R14 standard hose Society of Automotive Engineers. Inc. standard J51 /, 100 R series N0.14 Hose
- the hose used herein has a structure in which the elastic tube layer is made of polytetrafluoroethylene resin and the reinforcing layer is made of steel wire.
- the compression ratio of the elastic tube layer by the other hose gripping projections of the fittings 1 and 3 of the present invention is 45%, and the compression ratio of the elastic tube layer by the other hose gripping projections of the fitting 2 of the present invention. Is 20%.
- the compression ratio of the elastic tube layer by each hose gripping projection of the conventional fitting is 45%.
- hose breakage means that the hose broke at a pressure of about 55 MPa without oil leakage between the fitting and the hose.
- a hose gripping projection is provided only on the inner peripheral surface of the socket on the side opposite to the hose, and the height of the projection is adjusted so that the compression ratio of the elastic tube layer when the hose is crimped and fixed is as shown in Table 2.
- Inventive joint fittings 4 to 7 having the configuration shown in FIG. 3 were respectively manufactured.
- the compression ratio ⁇ is the compression ratio of the hose gripping projection.
- the compression ratio B is the compression ratio of the elastic tube layer by the inner peripheral surface of the socket after the hose is attached.
- Example 2 A hose having the same configuration as in Example 1 was fastened to each test fitting, to obtain test specimens 4 to 7 of the present invention to which the present fittings 4 to 7 and the hose were attached. Each of the test pieces was subjected to a sealability evaluation test under the measurement conditions shown in Example 1 above, and the results shown in Table 2 were obtained.
- Table 2 shows that the joint fitting of the present invention having the configuration shown in Fig. 3 can also improve the sealing performance and can be used at a higher pressure than before.
- the compression ratio of the elastic tube layer by the hose gripping projection should be higher than the compression ratio of the elastic tube layer by which the inner peripheral surface of the socket compresses by at least 10%.
- Fig. 4 shows an annular projection that extends in the circumferential direction on the outer peripheral surface of the nipple. The height of the projection is adjusted so that the compression ratio of the elastic tube layer when the hose is crimped is as shown in Table 3.
- the joint fittings 8 to 10 of the present invention having the configurations shown in Table 1 were produced.
- a hose having the same configuration as in Example 1 was fastened to each of the test fittings to obtain test pieces 8 to 10 of the present invention in which the present fittings 8 to 10 and the hoses were attached.
- the compression ratio of the elastic tube layer by the hose gripping projections of the fittings 8 and 10 of the present invention is 45%, and the compression ratio of the elastic tube layer by the hose gripping projections of the fitting 9 of the present invention is 5%. 20%.
- An annular projection is provided on the outer peripheral surface of the nipple that extends in the circumferential direction, and the height of the projection is adjusted so that the compression ratio of the elastic tube layer when the hose is crimped is as shown in Table 4.
- the joint fittings 11 to 14 of the present invention having the structure shown in FIG.
- the compression ratio A is the compression ratio of the protrusion.
- the compression ratio B is the compression ratio of the elastic tube layer by the inner peripheral surface of the socket after the hose is attached.
- a hose having the same configuration as in Example 1 was fastened to each of the test fittings to obtain test specimens 11 to 14 of the present invention to which the present joint fittings 11 to 14 and the hose were attached.
- Table 4 shows that the joint fitting of the present invention having the configuration shown in Fig. 5 can also improve the sealing performance and can be used at a higher pressure than before.
- the compression ratio of the elastic tube layer by the hose gripping projection should be higher than the compression ratio of the elastic tube layer by which the inner peripheral surface of the socket compresses by at least 10%.
- the present invention provides a conventional crimp-type hose joint by providing a projection for holding a hose having a higher protruding height on the inner peripheral surface of the socket, or by projecting a projection on the outer peripheral surface of the nipple. Sealability can be improved while taking advantage of the hardware.
- the hose joint fitting of the present invention having the above-described excellent effects can be used very effectively as a joint for connecting a hose to equipment.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2004-7006391A KR20040094392A (ko) | 2002-03-22 | 2002-09-19 | 호스 커플링 피팅 및 호스 커플링 피팅과 호스의 고정 구조 |
EP02772859A EP1489343B1 (en) | 2002-03-22 | 2002-09-19 | Method of attaching a hose coupling to a hose |
US10/496,835 US20050001424A1 (en) | 2002-03-22 | 2002-09-19 | Hose coupling fitting and fixing structure of hose coupling fitting and hose |
DE60236690T DE60236690D1 (de) | 2002-03-22 | 2002-09-19 | Verfahren zum befestigen eines schlauchkupplungsanschlusses mit einem schlauch |
US11/500,374 US7624504B2 (en) | 2002-03-22 | 2006-08-08 | Method of attaching hose coupling to hose |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002/80509 | 2002-03-22 | ||
JP2002080509A JP3766808B2 (ja) | 2002-03-22 | 2002-03-22 | ホース継手金具及びホース継手金具とホースの取付構造 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10496835 A-371-Of-International | 2002-09-19 | ||
US11/500,374 Division US7624504B2 (en) | 2002-03-22 | 2006-08-08 | Method of attaching hose coupling to hose |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003081112A1 true WO2003081112A1 (fr) | 2003-10-02 |
Family
ID=28449093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/009614 WO2003081112A1 (fr) | 2002-03-22 | 2002-09-19 | Attache de raccord pour tuyaux, structure de fixation de cette attache de raccord pour tuyaux et tuyau associe |
Country Status (6)
Country | Link |
---|---|
US (2) | US20050001424A1 (ja) |
EP (1) | EP1489343B1 (ja) |
JP (1) | JP3766808B2 (ja) |
KR (1) | KR20040094392A (ja) |
DE (1) | DE60236690D1 (ja) |
WO (1) | WO2003081112A1 (ja) |
Families Citing this family (26)
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US6922893B2 (en) * | 2003-10-20 | 2005-08-02 | Flex-Ing, Inc. | Flexible connectors and methods of manufacturing same |
KR100644340B1 (ko) * | 2005-02-25 | 2006-11-10 | 엘에스전선 주식회사 | 고압호스용 금구 체결구조 |
US7946629B2 (en) * | 2005-10-07 | 2011-05-24 | Flexpipe Systems Inc. | Pipe coupling and method for installation |
US7380326B2 (en) * | 2005-11-02 | 2008-06-03 | Whitesell International Corporation | Method of attaching a self-attaching fastener to a panel |
US9089984B2 (en) | 2012-08-29 | 2015-07-28 | Neoperl Gmbh | Method for cutting to length a piece of tube from a tube |
US10088086B2 (en) | 2007-07-11 | 2018-10-02 | Neoperl Gmbh | Sectioned hose |
DE202008006537U1 (de) | 2008-05-14 | 2008-07-24 | Parker Hannifin Gmbh & Co. Kg | Schlaucharmatur mit Entlastungsbohrung |
KR100966738B1 (ko) * | 2008-06-09 | 2010-06-29 | 금호정공(주) | 엘자형 니플 |
PL2211080T3 (pl) * | 2009-01-26 | 2013-08-30 | J Juan S A | Podłączenie rurki hamulcowej do węża hamulcowego |
US8888141B2 (en) | 2009-10-30 | 2014-11-18 | Caterpillar Inc. | Fluid coupling assembly and method of manufacture |
US8439405B2 (en) * | 2010-06-18 | 2013-05-14 | The Gates Corporation | Crimped or swaged couplings for cable reinforced hoses |
US8820797B2 (en) | 2010-07-06 | 2014-09-02 | Caterpillar Inc. | Non-rotating mechanical joint for a hose coupling |
US9217527B2 (en) | 2010-07-06 | 2015-12-22 | Caterpillar Inc. | No-skive hydraulic hose coupling with improved hose retention and sealing |
US20130076024A1 (en) * | 2011-09-26 | 2013-03-28 | E I Du Pont De Nemours And Company | Hose coupling with a non-swaged portion |
US8888139B2 (en) | 2011-10-04 | 2014-11-18 | American Boa Incorporated | Metal hose end fitting |
KR101672071B1 (ko) * | 2012-03-21 | 2016-11-02 | 엘에스엠트론 주식회사 | 호스의 이탈 및 피로 파괴를 방지하기 위한 접속 피팅 |
ES2577053T3 (es) * | 2012-08-29 | 2016-07-12 | Neoperl Gmbh | Procedimiento para cortar una sección de tubo flexible en varias porciones |
WO2014038266A1 (ja) * | 2012-09-06 | 2014-03-13 | 日本電気株式会社 | 配管接続構造と配管接続構造を有する電子機器及び光学機器 |
US9470351B2 (en) * | 2013-03-11 | 2016-10-18 | Hanon Systems | Crimp fitting having reversed barbs |
US10167075B2 (en) * | 2013-06-25 | 2019-01-01 | The Boeing Company | Joint assembly and method of forming thereof |
GB2521612A (en) * | 2013-12-23 | 2015-07-01 | Eaton Ind Ip Gmbh & Co Kg | Hose connection |
US9718177B1 (en) * | 2014-06-26 | 2017-08-01 | Charles Bell | Gasket removal and insertion tools for refrigeration hoses |
KR101712839B1 (ko) * | 2015-01-12 | 2017-03-21 | 주식회사 에스와이락코리아 | 플렉시블 메탈 연결구 |
WO2017040246A1 (en) * | 2015-08-28 | 2017-03-09 | Eaton Corporation | Fluid conduit fitting assembly |
JP6774712B2 (ja) * | 2016-01-27 | 2020-10-28 | ニッタ株式会社 | 加締め用ダイおよび加締め治具、並びにそれらを用いた加締め継手の製造方法 |
CN109630771A (zh) * | 2019-01-03 | 2019-04-16 | 南京利德东方橡塑科技有限公司 | 一种r744车用空调软管总成结构 |
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JPS60159492A (ja) * | 1984-01-31 | 1985-08-20 | 日吉工業株式会社 | 高圧用のホ−スと継手金具との接続構造 |
JPS61175393A (ja) * | 1985-01-31 | 1986-08-07 | 東海ゴム工業株式会社 | ホ−ス用継手 |
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US2374225A (en) * | 1941-10-04 | 1945-04-24 | Bowden Eng Ltd | Flexible hose coupling |
GB553867A (en) * | 1941-10-04 | 1943-06-09 | Walter Arthur Melsom | Improvements in and relating to flexible hose couplings |
US2300517A (en) * | 1942-04-06 | 1942-11-03 | Flex O Tube Company | Method of manufacturing shielding conduit assemblies |
US2572645A (en) * | 1946-06-03 | 1951-10-23 | Bowden Eng Ltd | Flexible hose coupling |
US2661225A (en) * | 1950-01-14 | 1953-12-01 | Gilbert T Lyon | Hose clamp fitting connection |
US2797111A (en) * | 1952-04-07 | 1957-06-25 | British Tyre & Rubber Company | Fitting for plural layer wire reinforced hoses |
US3347571A (en) * | 1965-08-30 | 1967-10-17 | Stratoflex Inc | Hose fitting |
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GB1402292A (en) * | 1972-06-27 | 1975-08-06 | Btr Industries Ltd | Hose end fitting |
GB1581028A (en) * | 1976-04-08 | 1980-12-10 | Btr Industries Ltd | Hose end untis |
US4064614A (en) * | 1976-12-23 | 1977-12-27 | Samuel Moore And Company | Method of making an improved hose and tube coupling |
US4369992A (en) * | 1980-11-24 | 1983-01-25 | Aeroquip Corporation | Convoluted hose fitting |
FI71611C (fi) * | 1981-03-30 | 1987-01-19 | Unilever Nv | Slangkoppling. |
ZA8400569B (en) * | 1981-08-24 | Stratoflex, Inc. | Hose fitting and method of assembly | |
US4664424A (en) * | 1982-11-12 | 1987-05-12 | Internationale Octrooi Maatschappij | Hose coupling |
US4564223A (en) * | 1983-05-02 | 1986-01-14 | Parker-Hannifin Corporation | Hose coupling |
DE3763802D1 (de) * | 1986-11-06 | 1990-08-23 | Parker Hannifin Corp | Schlauchmundstueck, verfahren und vorrichtung fuer dessen montage. |
US4804212A (en) * | 1986-11-06 | 1989-02-14 | Stratoflex, Inc. | Crimped hose fitting |
FR2677104B1 (fr) * | 1991-05-30 | 1993-12-17 | Hutchinson | Raccord pour tuyau en caoutchouc a armature textile. |
US5267758A (en) * | 1991-07-18 | 1993-12-07 | The Gates Rubber Company | Ferrule coupling having a C-shaped insert |
US5306051A (en) * | 1992-03-10 | 1994-04-26 | Hydrasearch Co., Inc. | Self-aligning and self-tightening hose coupling and method therefor |
US5382059A (en) * | 1994-01-13 | 1995-01-17 | Dayco Products, Inc. | Hose assembly, hose coupling and a part therefor and methods of making the same |
JP2001041377A (ja) | 1999-07-26 | 2001-02-13 | Denso Corp | ホース用継手金具 |
-
2002
- 2002-03-22 JP JP2002080509A patent/JP3766808B2/ja not_active Expired - Fee Related
- 2002-09-19 WO PCT/JP2002/009614 patent/WO2003081112A1/ja active Application Filing
- 2002-09-19 EP EP02772859A patent/EP1489343B1/en not_active Expired - Lifetime
- 2002-09-19 KR KR10-2004-7006391A patent/KR20040094392A/ko not_active Application Discontinuation
- 2002-09-19 DE DE60236690T patent/DE60236690D1/de not_active Expired - Lifetime
- 2002-09-19 US US10/496,835 patent/US20050001424A1/en not_active Abandoned
-
2006
- 2006-08-08 US US11/500,374 patent/US7624504B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60159492A (ja) * | 1984-01-31 | 1985-08-20 | 日吉工業株式会社 | 高圧用のホ−スと継手金具との接続構造 |
JPS61175393A (ja) * | 1985-01-31 | 1986-08-07 | 東海ゴム工業株式会社 | ホ−ス用継手 |
Also Published As
Publication number | Publication date |
---|---|
DE60236690D1 (de) | 2010-07-22 |
US20060277740A1 (en) | 2006-12-14 |
EP1489343A4 (en) | 2007-10-17 |
US20050001424A1 (en) | 2005-01-06 |
KR20040094392A (ko) | 2004-11-09 |
US7624504B2 (en) | 2009-12-01 |
EP1489343A1 (en) | 2004-12-22 |
JP3766808B2 (ja) | 2006-04-19 |
EP1489343B1 (en) | 2010-06-09 |
JP2003278975A (ja) | 2003-10-02 |
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