WO2014010453A1 - 管継手 - Google Patents
管継手 Download PDFInfo
- Publication number
- WO2014010453A1 WO2014010453A1 PCT/JP2013/068012 JP2013068012W WO2014010453A1 WO 2014010453 A1 WO2014010453 A1 WO 2014010453A1 JP 2013068012 W JP2013068012 W JP 2013068012W WO 2014010453 A1 WO2014010453 A1 WO 2014010453A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- orifice
- pipe joint
- tube
- fluid pressure
- pressure device
- 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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
- F16L33/227—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the hose being introduced into or onto the connecting member and automatically locked
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/204—Control means for piston speed or actuating force without external control, e.g. control valve inside the piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/003—Systems with different interchangeable components, e.g. using preassembled kits
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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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
- F16L29/00—Joints with fluid cut-off means
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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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/091—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
-
- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/091—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
- F16L37/0915—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers with a separate member for releasing the coupling
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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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
- F16L55/02709—Throttle passages in the form of perforated plates
- F16L55/02718—Throttle passages in the form of perforated plates placed transversely
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0215—Control by fluid pressure for damping of pulsations within the fluid system
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0224—Details of conduits, connectors or the adaptors therefor specially adapted for clutch control
Definitions
- the present invention relates to a fitting for connecting a tube to a hydraulic device.
- a piston disposed in a cylinder tube advances and retracts in the axial direction of the cylinder tube under the action of fluid pressure such as air pressure or oil pressure.
- a cylinder with a speed control mechanism disclosed in Japanese Patent Laid-Open No. 2004-11855 (hereinafter referred to as prior art 1) is known.
- the cylinder is provided with a cylinder chamber closed by a cover member, and is supplied with pressure fluid by a cylinder body having a pair of ports to the cylinder chamber.
- the cylinder body incorporates a piston that is displaced along the axial direction in the cylinder chamber, and a piston rod is integrally connected to the piston.
- the cylinder is disposed inside the cylinder body and has a cylindrical body connected to the cover member substantially in parallel with the piston rod. Inside the piston rod, shaft members disposed so as to be insertable through the inside of the cylindrical body are connected substantially in parallel.
- the cylinder is provided with a first notch groove formed along the axial direction on the outer peripheral surface of the cylindrical body and a second notch groove formed along the axial direction on the outer peripheral surface of the shaft member. Furthermore, the cylinder includes a first seal member surrounding the outer peripheral surface of the cylindrical body and a second seal member surrounding the outer peripheral surface of the shaft member.
- the flow rate of the pressure fluid flowing between the port and the cylinder chamber is controlled by the first notch groove.
- the flow rate of the pressure fluid flowing between the port and the cylinder chamber is controlled by the second notch groove.
- the speed control mechanism is incorporated inside the cylinder body. Therefore, the structure may be complicated, and the entire cylinder may not be easily made compact.
- a screw portion is formed on the circumferential surface of the cylinder body, and a speed control valve such as a needle valve is attached to the screw portion.
- a speed control valve such as a needle valve
- a handle is provided to rotate the needle, and contact with the handle causes a malfunction of the cylinder.
- differences in the operating conditions of the steering wheel easily occur for each worker, and the speed conditions may vary.
- the present invention has been made in consideration of the above-mentioned problems, and it is an object of the present invention to provide a pipe joint which can be easily and reliably set to a desired speed condition and can improve workability easily. Do.
- the present invention relates to a pipe joint including a body into which a tube is inserted and an attaching / detaching mechanism provided inside of the body and capable of attaching / detaching the tube detachably and connected to a fluid pressure device.
- the body is rotatably provided with an orifice portion for communicating the tube with the fluid pressure device.
- the orifice portion can change the opening size of the orifice communicating with the communication portion between the tube and the fluid pressure device according to the rotational angle position.
- the body includes a first body into which the tube is inserted, and a second body connected to the fluid pressure device and rotatable relative to the first body. ing.
- an orifice portion is integrated, and in the orifice portion, a plurality of orifices having different opening diameters are equally spaced from the rotation center of the first body and have a predetermined angle with each other. It is provided.
- the second body be provided with a passage member having a through hole for communicating the orifice disposed at the prescribed angular position with the fluid pressure device.
- the first body and the second body are engaged with each other on the outer periphery or inner periphery of the first body and the inner periphery or outer periphery of the second body. It is preferable that a groove and a projection to be held at a plurality of prescribed angular positions be provided.
- the orifice portion includes a main body portion mounted to the body and having a passage communicating with the communication portion offset from the axial position.
- the orifice portion comprises an orifice plate rotatably engaged with the body portion and capable of changing continuously or intermittently the opening size of the orifice communicating with the passage according to the rotational angular position.
- the main body portion and the orifice plate may be provided with grooves and protrusions for holding the main body portion and the orifice plate at a plurality of prescribed angular positions by engaging with each other. preferable.
- the velocity control of the fluid pressure device can be performed simply and reliably under the action of the orifice provided in the orifice portion.
- the opening size of the orifice communicating with the communication portion between the tube and the fluid pressure device can be changed by the rotational angle position. For this reason, it can be favorably adopted in various fluid pressure devices, and the versatility can be easily improved.
- FIG. 1 is an overall longitudinal sectional view of a pipe joint according to a first embodiment of the present invention.
- FIG. 2 is a cross-sectional perspective view of the pipe joint.
- FIG. 3 is an exploded perspective view from one side of the pipe joint.
- FIG. 4 is an exploded perspective view from the other side of the pipe joint.
- FIG. 5 is an overall longitudinal sectional view of a pipe joint according to a second embodiment of the present invention.
- FIG. 6 is an exploded perspective view of an orifice portion constituting the pipe joint.
- FIG. 7 is a front view of the orifice portion.
- FIG. 8 is an overall longitudinal sectional view of a pipe joint according to a third embodiment of the present invention.
- FIG. 9 is an exploded perspective view of an orifice portion constituting the pipe joint.
- FIG. 10 is an operation explanatory view of the pipe joint.
- FIG. 11 is an overall longitudinal sectional view of a pipe joint according to a fourth embodiment of the present invention.
- FIG. 12 is an exploded perspective view of an orifice portion constituting the pipe joint.
- FIG. 13 is a perspective view of the orifice portion.
- FIG. 14 is an overall longitudinal sectional view of a pipe joint according to a fifth embodiment of the present invention.
- FIG. 15 is an exploded perspective view of an orifice portion constituting the pipe joint.
- FIG. 16 is a perspective view of an orifice plate constituting the orifice portion.
- FIG. 17 is an overall longitudinal sectional view of a pipe joint according to a sixth embodiment of the present invention.
- FIG. 18 is a perspective view of one of the orifices constituting the pipe joint.
- FIG. 19 is another perspective view of the orifice portion.
- the fluid tube 12 is detachably mounted, and is connected to, for example, a fluid pressure device 14 such as a cylinder.
- the pipe joint 10 is connected to a resin body (first body) 16a into which the fluid tube 12 is inserted, and a fluid pressure device 14, with respect to the resin body 16a. And a relatively rotatable metal body (second body) 16b.
- the resin body 16a has a large diameter cylindrical portion 20a in which the mounting and demounting mechanism 18 is incorporated.
- An intermediate cylindrical portion 20b smaller in diameter than the large diameter cylindrical portion 20a is integrally formed in the large diameter cylindrical portion 20a, and a bottomed cylindrical portion smaller in diameter than the intermediate cylindrical portion 20b is formed in the intermediate cylindrical portion 20b.
- 20c is integrally molded.
- a first opening 28 is formed in the large diameter cylindrical portion 20a in the axial direction to a predetermined depth.
- a first stepped portion 30 is provided at the bottom of the first opening 28, and the first opening 28 communicates with the second opening 32 whose diameter is reduced via the first stepped portion 30.
- the second opening 32 is provided inside the intermediate cylindrical portion 20 b and has a predetermined depth, and a second step 34 is provided at the bottom of the second opening 32.
- the mounting and demounting mechanism 18 incorporated in the first opening 28 includes an annular packing member 36 and a chuck 38 for locking the fluid tube 12 inserted in the resin body 16 a.
- the attachment / detachment mechanism 18 further includes a guide member 40 engaged with the inner circumferential surface of the first opening 28 and a release bush 42 displaceable along the guide member 40.
- the packing member 36 is formed of, for example, an elastic material such as rubber, and is disposed in the first opening 28 so as to abut on the first step 30.
- the packing member 36 is formed in a substantially ring shape, and a bulging portion 44 that abuts on the inner peripheral surface of the first opening 28 is formed on the outer peripheral surface.
- a seal convex portion 46 slidably contacting with the outer peripheral surface of the fluid tube 12 is formed to protrude.
- the chuck 38 is formed in, for example, a substantially cylindrical shape by pressing a thin plate material. At one end of the chuck 38 is formed a claw portion 48 which inclines in the radially inward direction, and at the other end of the chuck 38 is formed a locking portion 50 which is bent in the radially outward direction Ru.
- the tip of the claw portion 48 is formed in a blade shape, and is formed so as to be inserted into the outer peripheral surface of the fluid tube 12.
- a first slit 52 cut in a predetermined length toward the other end is formed at one end of the chuck 38, and the first slits 52 are equally spaced along the circumferential direction of the chuck 38. Multiple (for example, four) are provided.
- a second slit 54 cut out with a predetermined length toward the one end side is formed, and the second slits 54 are equally spaced along the circumferential direction of the chuck 38. Multiple (for example, four) are provided.
- the first slits 52 and the second slits 54 are alternately provided so as to alternate along the circumferential direction of the chuck 38.
- the guide member 40 is formed in a substantially cylindrical shape, for example, by pressing a thin plate material, similarly to the chuck 38 described above, and is arranged to abut on the inner peripheral surface of the first opening 28.
- a front end portion 56 which is folded back in the first opening 28 and disposed on the packing member 36 side is formed.
- a rear end portion 58 which is disposed at the open end of the first opening 28 and is bent in a circular shape in cross section in the radially inward direction is formed.
- the release bush 42 is formed, for example, in a cylindrical shape from a resin material. At one end portion of the release bush 42, a tapered portion 60 which bulges radially outward and gradually reduces in diameter toward the tip end side is formed. The tapered portion 60 is provided to face the claw portion 48 which constitutes the chuck 38.
- a flange portion 62 which is expanded radially outward is formed.
- the outer peripheral diameter of the flange portion 62 is formed larger than the first opening 28.
- a through hole 64 is formed in the inside of the release bush 42 in the axial direction and through which the fluid tube 12 is inserted.
- the inner circumferential diameter of the through hole 64 is formed to be slightly larger than the outer circumferential diameter of the fluid tube 12, and is formed to have a substantially constant diameter.
- orifices 70a, 70b and 70c having different opening diameters are provided on the same circumference and separated by a predetermined angle.
- Grooves 72a, 72b and 72c are formed on the outer periphery of the intermediate cylindrical portion 20b so as to extend in the axial direction corresponding to the angular positions of the orifices 70a, 70b and 70c.
- a printing portion 74 on which the diameters of the orifices 70a, 70b and 70c are printed is provided on the outer periphery of the large diameter cylindrical portion 20a, and a rotary knob 76 having an uneven shape is formed.
- the metal body 16b is formed of, for example, a metal material such as stainless steel and has a substantially cylindrical shape.
- a screw portion 80 screwed into the screw hole 78 of the fluid pressure device 14 is provided at the axial direction (direction of arrow A) at the end of the metal body 16 b.
- a tightening nut portion 82 is formed on the outer peripheral portion of the metal body 16 b so as to be continuous with the screw portion 80.
- the fastening nut portion 82 is formed, for example, in a hexagonal shape in cross section, and is used when connecting to the screw hole 78 using a tool (not shown).
- a large diameter opening 86a and a small diameter opening 86b for inserting the bottomed cylindrical portion 20c and the intermediate cylindrical portion 20b of the resin body 16a are coaxially formed from one axial end of the metal body 16b.
- the bottomed cylindrical portion 20c is rotatably fitted to the opening 86b, while the intermediate cylindrical portion 20b is rotatably fitted to the opening 86a.
- a seal member 88 is disposed at the boundary between the openings 86a and 86b.
- Protrusions 90 are formed inwards (crimped) on the outer peripheral portion at one axial end side of the metal body 16b.
- the protrusion 90 places any one of the orifices 70 a, 70 b or 70 c in a position that communicates with the fluid pressure device 14 by engaging any of the grooves 72 a, 72 b or 72 c.
- An inward projection 92 is provided on the other axial end side of the metal body 16 b, and an opening (a hole) 93 is formed.
- the inward protruding portion 92 has a ring shape, and a locking portion 92 a that is axially inwardly crimped is formed in a part of the inward protruding portion 92.
- a passage member 94 and a gasket 96 are disposed in the metal body 16b so as to be located between the inward projection 92 and the end of the bottomed cylindrical portion 20c of the resin body 16a.
- the passage member 94 is formed of, for example, a resin material and has a substantially disc shape, and the through hole 98 is provided eccentrically from the central portion thereof.
- the through hole 98 is disposed at a position where any one of the orifices 70a, 70b or 70c is in communication with the fluid pressure device 14 when the projection 90 is engaged with any of the grooves 72a, 72b or 72c.
- a groove 100 is formed on one surface of the passage member 94 by cutting the through hole 98 in the radial direction of the passage member 94.
- the locking portion 92 a of the metal body 16 b is engaged with the groove portion 100 to hold the angular position of the through hole 98.
- a groove 102 is formed on the other surface of the passage member 94 so as to extend in the radial direction.
- the gasket 96 has a substantially disc shape, and a through hole 104 communicating with the through hole 98 of the passage member 94 is formed eccentrically from the center.
- the through holes 98 and 104 constitute a communicating portion for communicating the fluid tube 12 with the fluid pressure device 14.
- the gasket 96 is provided with a radially extending protrusion 106, and the protrusion 106 fits in the groove 102 of the passage member 94. This is to perform relative positioning between the gasket 96 and the passage member 94.
- the pipe joint 10 is in a state of being screwed and fixed in advance to the fluid pressure device 14 (see FIG. 1).
- the fluid tube 12 is inserted from the first opening 28 along the through hole 64 of the release bush 42.
- the seal projection 46 is in sliding contact with the outer peripheral surface of the fluid tube 12. For this reason, the airtightness between the packing member 36 and the fluid tube 12 is reliably maintained.
- one end of the chuck 38 is pushed radially outward by the fluid tube 12, and the claw portion 48 abuts on the outer peripheral surface of the fluid tube 12. Furthermore, when the fluid tube 12 is inserted, the tip of the fluid tube 12 abuts on the second step 34.
- fluid supply or discharge is performed to the fluid tube 12 connected to the fitting 10.
- fluid is supplied from the fluid tube 12 into the resin body 16 a of the fitting 10.
- This fluid is supplied to the fluid pressure device 14 from the through hole 98 and the opening 93 after the supply flow rate is regulated through the orifice 70a, 70b or 70c provided on the bottom surface 68 of the resin body 16a.
- the fluid when the fluid is discharged from the fluid pressure device 14 into the resin body 16a, the fluid is supplied from the through hole 98 to the orifice 70a, 70b or 70c. Thereby, the fluid is discharged to the fluid tube 12 after the discharge flow rate is regulated. For this reason, speed control (for example, reciprocating speed control of a piston) in the fluid pressure device 14 is performed.
- speed control for example, reciprocating speed control of a piston
- the flange portion 62 of the release bush 42 is pressed toward the resin body 16a.
- the tapered portion 60 presses the claws 48 of the chuck 38 to move the claws 48 away from the outer peripheral surface of the fluid tube 12.
- the other end of the chuck 38 is forced outward by the release bush 42 in the radially outward direction. Therefore, the claw portion 48 inserted into the outer peripheral surface of the fluid tube 12 is separated from the outer peripheral surface of the fluid tube 12, and the locked state of the fluid tube 12 by the chuck 38 is released. Then, the fluid tube 12 is removed from the pipe joint 10 by pulling the fluid tube 12 in the direction of separating the fluid tube 12 from the resin body 16 a.
- one of the orifices 70a, 70b or 70c having different opening diameters is disposed at a position (communication portion) communicating with the fluid pressure device 14. It becomes possible. Therefore, it can be suitably adopted for various fluid pressure devices 14, and the versatility can be easily improved.
- the groove portions 72a, 72b and 72c are formed to extend in the axial direction on the outer periphery of the resin body 16a.
- a projection 90 to be engaged with any of the groove portions 72a, 72b or 72c is provided on the outer peripheral portion of one end side in the axial direction of the metal body 16b.
- the resin body 16a is provided with orifices 70a, 70b and 70c having different opening diameters. For this reason, when changing the orifice diameter, it is not necessary to replace the resin body 16a itself, and it is only necessary to rotate the resin body 16a. Therefore, the operation of changing the orifice diameter is performed more simply and in a short time.
- a printing portion 74 on which the diameters of the orifices 70a, 70b and 70c are printed is provided on the outer periphery of the resin body 16a.
- FIG. 5 is an overall longitudinal sectional view of a pipe joint 110 according to a second embodiment of the present invention.
- the same referential mark is attached
- the detailed description thereof is omitted, and the same reference numerals are given to the same components as the components used in the previous embodiment. Therefore, the detailed description is omitted.
- the pipe fitting 110 is formed of, for example, a metal material such as stainless steel, and includes a body 112 having a substantially cylindrical shape.
- the attaching / detaching mechanism 18 is incorporated at one end, and a screw 80 is provided at the other end.
- a first stepped portion 30, a second stepped portion 34 and a third stepped portion 114 are formed coaxially and successively with a smaller diameter.
- a communication hole (communication portion) 116 communicating with the fluid pressure device 14 is provided downstream of the third stepped portion 114.
- the body 112 is provided with an orifice portion 118 located between the third step portion 114 and the tip of the fluid tube 12.
- the orifice portion 118 is formed of, for example, a resin material, and is formed of a substantially ring-shaped main body portion 120 and, for example, a metal material or a resin material.
- a convex portion 124 which is in sliding contact with the inner circumferential surface 112a between the second step portion 34 and the third step portion 114 of the body 112 is bulged.
- a hole 126 communicating with the communication hole 116 is formed at the center of the main body 120, and a passage 128 communicating with an end of one end side (the fluid tube 12 side) of the hole 126 is formed.
- the passage 128 is formed by cutting out the end face 120 a of the main body 120, and is provided offset from the axial center position of the main body 120.
- a snap fit 130 is formed on the end side where the passage 128 is provided.
- the snap fit 130 is provided with a plurality of (for example, six) claws 132 spaced at equal angular intervals around the hole 126.
- a locking portion 132a that bulges inward is provided on the inner side of each claw portion 132, and can be elastically deformed in the radial direction.
- a plurality of concave portions (or convex portions) 134 are spaced at predetermined intervals on the end surface 120 a of the main body portion 120, and are disposed along a circumference centered on the hole portion 126.
- the orifice plate 122 has a disc portion 136, and the disc portion 136 is provided with an orifice 138 and a projection (or a recess) 140 projecting to the end face 120a side.
- the orifice 138 is bent along an arc shape with the center of the disc portion 136 as a fulcrum, and after the opening width dimension on one end 138a side is gradually expanded, the substantially same opening width dimension is maintained And continues to the other end 138b.
- the orifice 138 is adjustable so that the cross-sectional area in communication with the passage 128 becomes successively larger when the projections 140 sequentially engage with the recesses 134 of the end face 120a (see FIG. 7).
- the orifice plate 122 abuts on the end face 120a, the orifice plate 122 is locked by the claws 132 that make up the snap fit 130, and the detachment is prevented.
- FIG. 8 is an entire longitudinal cross-sectional view of a pipe joint 150 according to a third embodiment of the present invention.
- the same referential mark is attached
- the pipe fitting 150 is formed of, for example, a metal material such as stainless steel, and includes a body 152 having a substantially cylindrical shape.
- the body 152 arranges the orifice portion 154 between the third step portion 114 and the tip of the fluid tube 12.
- the orifice portion 154 includes a main body portion 156 made of resin, an orifice plate 158 made of metal or resin, and a packing member 160 made of rubber.
- the disc portions 164a and 164b are integrally formed on both ends of the columnar portion 162, and a hole portion 126 is formed in the central portion.
- a passage 128, a snap fit 130, and a plurality of recesses (or projections) 134 are formed in the disk portion 164a.
- the disc portion 164b is provided with protruding portions 166 which protrude outward at predetermined angular intervals on the outer periphery.
- the orifice plate 158 is formed with an orifice 138, a convex portion (or a concave portion) 140 on the main body portion 156 side, and a knob portion 142.
- the packing member 160 is provided at an outer peripheral portion thereof with an inclined seal portion 160a which is inclined outward and expanded in diameter from the second step portion 34 toward the third step portion 114.
- the inclined seal portion 160 a is in sliding contact with the inner circumferential surface 152 a of the body 152.
- the fluid when the fluid is discharged from the fluid pressure device 14 into the body 152, as shown in FIG. 8, the fluid is introduced into the hole portion 126 of the main body portion 156 which constitutes the orifice portion 154. Be done.
- the hole 126 is in communication with the passage 128 of the disk portion 164 a, and the fluid is controlled from the passage 128 only through the orifice 138 and discharged to the fluid tube 12.
- the fluid when the fluid is supplied from the fluid tube 12 to the fluid pressure device 14, as shown in FIG. 10, the fluid is supplied along the fluid tube 12 to the orifice portion 154 side. Fluid is supplied from the orifice 138 through the passage 128 and the bore 126 to the hydraulic device 14. Furthermore, the remaining fluid is supplied to the fluid pressure device 14 by causing the inclined seal portion 160a of the packing member 160 to radially reduce in diameter and passing between the outer periphery of the inclined seal portion 160a and the inner peripheral surface 152a. Yes (free flow).
- the flow passage cross-sectional area of the orifice portion 154 can be arbitrarily adjusted only by rotating the orifice plate 158. Therefore, the same effects as those of the first and second embodiments described above can be obtained, such as being able to be suitably adopted for various fluid pressure devices 14 and to easily improve versatility.
- FIG. 11 is an entire longitudinal cross-sectional view of a pipe joint 170 according to a fourth embodiment of the present invention.
- the pipe joint 170 is formed of, for example, a metal material such as stainless steel, and includes a body 172 having a substantially cylindrical shape.
- the body 172 locates the orifice portion 174 between the third step 114 and the second step 34.
- the orifice portion 174 includes a main body portion 176 made of resin, an orifice plate 178 made of metal, a rotating portion 180 made of resin, a packing member 160, and a bottom plate 182 made of resin.
- the main body portion 176 has a columnar portion 184 and a disk portion 186 integrally formed at one end of the columnar portion 184.
- the disc portion 186 is formed with a passage 188 which is in communication with the hole portion 126 and which opens in one in-plane of the disc portion 186.
- a projecting portion 190 for locking is formed to bulge.
- the orifice plate 178 has a disk shape, and a plurality of circular orifices 192 are formed at predetermined intervals on the outer peripheral edge along the imaginary circle.
- the orifice 192 is set to have a large opening size sequentially along the arrow direction.
- a positioning groove 194 is formed on the outer peripheral portion of the orifice plate 178.
- the rotating portion 180 has a ring body 196, and in one side surface of the ring body 196, concave portions 198 are provided spaced apart by a predetermined distance, and thus formed in a sawtooth shape.
- a snap fit 130 is formed on the outer periphery of the ring body 196.
- the snap fit 130 has, for example, three claws 132.
- the ring body 196 is provided with a protrusion (not shown) fitted in the groove 194 of the orifice plate 178 to hold the orifice plate 178 integrally with the ring body 196.
- the bottom plate 182 has a substantially ring shape, and an opening 200 into which the columnar portion 184 of the main body portion 176 is press-fitted is formed at the central portion.
- three protrusions 202 are formed on the outer peripheral portion of the bottom plate 182 so as to protrude outward.
- the snap fit 130 of the rotating portion 180 engages with the disc portion 186 of the main body portion 176, whereby the main body portion 176, the orifice plate 178 and the rotating portion 180 is held together.
- the rotating portion 180 and the orifice plate 178 integrally rotate in the direction of the arrow. For this reason, when the protrusion 190 is separated from the recess 198 of the rotation unit 180 and the rotation unit 180 is stopped at a predetermined angular position, the protrusion 190 is fitted in one recess 198. Therefore, the orifice 192 communicates with the passage 188 by a predetermined number, and the flow passage cross-sectional area in the orifice portion 174 is adjusted.
- FIG. 14 is an overall longitudinal cross-sectional explanatory view of a pipe joint 210 according to a fifth embodiment of the present invention.
- the pipe fitting 210 is formed of, for example, a metal material such as stainless steel, and includes a body 212 having a substantially cylindrical shape. Inside the body 212, the first step 30 and the second step 34 are provided, and the third step is not provided. An orifice 214 is disposed between the second step 34 and the tip of the fluid tube 12.
- the orifice portion 214 includes a resin main body portion 216, a rubber gasket 218, and a resin orifice plate 220.
- the main body portion 216 has a substantially disk shape, and a convex portion 222 slidably contacting the inner peripheral surface 212 a of the body 212 is formed on the outer peripheral portion.
- a passage 224 communicating with the hole 126 is eccentrically provided on the end face 216a of the main body portion 216, and a radially extending locking portion 226 is bulged on the end face 216a.
- the main body portion 216 is provided with a snap fit 130 from the inside substantially on the same plane as the end face 216 a.
- the gasket 218 is held by the snap fit 130 and eccentrically formed from the central position to form a communication hole (communication portion) 228.
- the orifice plate 220 has a substantially disk shape, and as shown in FIG. 16, a bulging portion 230 is formed from the center on the surface facing the main body portion 216 side.
- the outer peripheral surface of the bulging portion 230 is formed with an inclined surface 232 which is expanded in diameter, and the inclined surface 232 has a function of preventing falling off during rotation by engaging with the snap fit 130.
- orifices 70a, 70b and 70c are formed in the bulging portion 230.
- grooves 72a, 72b and 72c are formed to extend in the radial direction corresponding to the orifices 70a, 70b and 70c.
- the grooves 72 a, 72 b and 72 c can be selectively communicated with the hole 126 via the communication hole 228 by engaging with the locking portion 226 of the main body 216.
- a printing portion 74 is provided on the outer surface of the orifice plate 220.
- an engagement hole 234 is formed in which a hexagonal wrench or the like is fitted.
- a tool is inserted into the engagement hole 234 of the orifice plate 220 to rotate the orifice plate 220 to a predetermined position. That is, the groove portions 72 a, 72 b or 72 c are engaged with the locking portion 226. For this reason, the orifices 70 a, 70 b or 70 c communicate with the hole 126 via the communication hole 228 and communicate with the fluid pressure device 14. Therefore, the same effects as those of the first to fourth embodiments can be obtained, such as being able to be suitably adopted for various fluid pressure devices 14 and to improve the versatility easily.
- FIG. 17 is an overall longitudinal cross sectional view of a pipe joint 240 according to a sixth embodiment of the present invention.
- the pipe joint 240 is formed of, for example, a metal material such as stainless steel, and includes a body 242 having a substantially cylindrical shape. An orifice portion 244 is disposed inside the body 242 between the second step 34 and the tip of the fluid tube 12.
- the orifice portion 244 includes a main body portion 246 made of resin and an orifice member 248 made of resin.
- the main body portion 246 has a substantially disk shape, and a convex portion 250 slidably contacting the inner peripheral surface 242 a of the body 242 is formed on the outer peripheral portion.
- a snap fit 130 is provided on the central portion side of the body 242, and a passage 252 is formed at a position eccentric from the center.
- a hole 254 is provided at the center of the surface of the main body 246 opposite to the snap fit 130, and a locking projection 256 is formed to bulge.
- the orifice member 248 has a disc portion 258, and a knob portion 260 is formed on one end side of the disc portion 258.
- the knob portion 260 has flat surfaces 262 on both sides.
- An orifice 264 is formed in the knob portion 260. The orifice 264 is set in such a manner that the opening width dimension continuously increases from the end 264a.
- a rod 266 is formed to bulge from the central portion on the side opposite to the knob portion 260 of the orifice member 248, and a circumferential groove 266 a is formed on the outer periphery of the rod 266. Be done.
- the snap fit 130 is engageable with the circumferential groove 266a.
- the orifice member 248 is provided with an engaging portion 268 which is curved in a substantially arc shape on the outer side of the rod body 266 and has a sawtooth uneven portion 268a on the inner peripheral side.
- the locking projection 256 is engageable with the uneven portion 268a.
- the orifice member 248 is provided with a scale 270 outside the knob portion 260.
- the locking projection 256 of the main body 246 engages with any of the projections and depressions 268a of the orifice member 248. Then, when the orifice member 248 is stopped at a predetermined angular position, the overlapping state of the orifice 264 and the passage 252 is adjusted, and the flow passage cross-sectional area of the orifice portion 244 can be adjusted. Therefore, in the sixth embodiment, the same effect as in the above first to fifth embodiments can be obtained.
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- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
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Abstract
Description
Claims (5)
- チューブ(12)が挿入されるボディと、前記ボディの内部に設けられ、前記チューブ(12)を着脱自在な着脱機構(18)とを備え、流体圧機器(14)に接続される管継手であって、
前記ボディには、前記チューブ(12)と前記流体圧機器(14)とを連通させるオリフィス部が回転可能に設けられるとともに、
前記オリフィス部は、回転角度位置により前記チューブ(12)と前記流体圧機器(14)との連通部に連通するオリフィス(70a)の開口寸法が変更可能であることを特徴とする管継手。 - 請求項1記載の管継手において、
前記ボディは、前記チューブ(12)が挿入される第1のボディ(16a)と、
前記流体圧機器(14)に接続され、前記第1のボディ(16a)に対して相対的に回転自在な第2のボディ(16b)と、
を備えるとともに、
前記第1のボディ(16a)には、前記オリフィス部が一体化され、前記オリフィス部には、それぞれ開口径の異なる複数の前記オリフィス(70a)が、該第1のボディ(16a)の回転中心から等間隔且つ互いに所定の角度を有して設けられる一方、
前記第2のボディ(16b)には、規定角度位置に配置される前記オリフィス(70a)を前記流体圧機器(14)に連通する貫通孔(98)を有する通路部材(94)が設けられることを特徴とする管継手。 - 請求項2記載の管継手において、
前記第1のボディ(16a)の外周又は内周と前記第2のボディ(16b)の内周又は外周とには、互いに係合することにより、前記第1のボディ(16a)と前記第2のボディ(16b)とを複数の規定角度位置に保持する溝部(72a)と突起部(90)とが設けられることを特徴とする管継手。 - 請求項1記載の管継手において、
前記オリフィス部は、前記ボディに装着され、前記連通部に連通する通路(128)が軸心位置からオフセットして設けられる本体部(120)と、
前記本体部(120)に回転自在に係合し、回転角度位置により前記通路(128)に連通するオリフィス(138)の開口寸法が連続的又は断続的に変更可能なオリフィス板(122)と、
を備えることを特徴とする管継手。 - 請求項4記載の管継手において、
前記本体部(120)と前記オリフィス板(122)とには、互いに係合することにより、前記本体部(120)と前記オリフィス板(122)とを複数の規定角度位置に保持する溝部(134)と突起部(140)とが設けられることを特徴とする管継手。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/412,732 US9689520B2 (en) | 2012-07-13 | 2013-07-01 | Pipe joint |
KR1020157004023A KR101682610B1 (ko) | 2012-07-13 | 2013-07-01 | 파이프 조인트 |
DE112013003524.3T DE112013003524B4 (de) | 2012-07-13 | 2013-07-01 | Rohrkupplung |
CN201380037452.0A CN104541095B (zh) | 2012-07-13 | 2013-07-01 | 管接头 |
JP2014524745A JP6249237B2 (ja) | 2012-07-13 | 2013-07-01 | 管継手 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2012-158035 | 2012-07-13 | ||
JP2012158035 | 2012-07-13 |
Publications (1)
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WO2014010453A1 true WO2014010453A1 (ja) | 2014-01-16 |
Family
ID=49915916
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2013/068012 WO2014010453A1 (ja) | 2012-07-13 | 2013-07-01 | 管継手 |
PCT/JP2013/068010 WO2014010452A1 (ja) | 2012-07-13 | 2013-07-01 | 管継手 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2013/068010 WO2014010452A1 (ja) | 2012-07-13 | 2013-07-01 | 管継手 |
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US (2) | US9689520B2 (ja) |
JP (3) | JP6503601B2 (ja) |
KR (2) | KR101682610B1 (ja) |
CN (2) | CN104487751B (ja) |
DE (2) | DE112013003519B4 (ja) |
TW (2) | TWI515384B (ja) |
WO (2) | WO2014010453A1 (ja) |
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- 2013-07-01 CN CN201380037502.5A patent/CN104487751B/zh active Active
- 2013-07-01 JP JP2014524744A patent/JP6503601B2/ja active Active
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- 2013-07-01 KR KR1020157004023A patent/KR101682610B1/ko active IP Right Grant
- 2013-07-01 JP JP2014524745A patent/JP6249237B2/ja active Active
- 2013-07-01 KR KR1020157004022A patent/KR101739070B1/ko active IP Right Grant
- 2013-07-01 WO PCT/JP2013/068010 patent/WO2014010452A1/ja active Application Filing
- 2013-07-01 DE DE112013003524.3T patent/DE112013003524B4/de active Active
- 2013-07-01 US US14/412,732 patent/US9689520B2/en active Active
- 2013-07-01 US US14/412,724 patent/US10151416B2/en active Active
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Also Published As
Publication number | Publication date |
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JPWO2014010453A1 (ja) | 2016-06-23 |
TWI515384B (zh) | 2016-01-01 |
DE112013003524B4 (de) | 2023-04-27 |
DE112013003524T5 (de) | 2015-03-26 |
US20150159799A1 (en) | 2015-06-11 |
CN104487751B (zh) | 2017-03-08 |
US10151416B2 (en) | 2018-12-11 |
KR20150036647A (ko) | 2015-04-07 |
TW201408920A (zh) | 2014-03-01 |
JPWO2014010452A1 (ja) | 2016-06-23 |
JP6503601B2 (ja) | 2019-04-24 |
JP6249237B2 (ja) | 2017-12-20 |
CN104541095B (zh) | 2017-05-24 |
US9689520B2 (en) | 2017-06-27 |
WO2014010452A1 (ja) | 2014-01-16 |
CN104487751A (zh) | 2015-04-01 |
US20150145249A1 (en) | 2015-05-28 |
KR20150036648A (ko) | 2015-04-07 |
TW201418606A (zh) | 2014-05-16 |
TWI518276B (zh) | 2016-01-21 |
JP2019044973A (ja) | 2019-03-22 |
DE112013003519B4 (de) | 2024-05-23 |
KR101739070B1 (ko) | 2017-05-23 |
CN104541095A (zh) | 2015-04-22 |
DE112013003519T5 (de) | 2015-04-09 |
KR101682610B1 (ko) | 2016-12-05 |
JP6748367B2 (ja) | 2020-09-02 |
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