WO2017111162A1 - Structure d'accouplement - Google Patents

Structure d'accouplement Download PDF

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Publication number
WO2017111162A1
WO2017111162A1 PCT/JP2016/088722 JP2016088722W WO2017111162A1 WO 2017111162 A1 WO2017111162 A1 WO 2017111162A1 JP 2016088722 W JP2016088722 W JP 2016088722W WO 2017111162 A1 WO2017111162 A1 WO 2017111162A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust pipe
ball
joint structure
plate
bolt
Prior art date
Application number
PCT/JP2016/088722
Other languages
English (en)
Japanese (ja)
Inventor
真一 塩野谷
宮下　磨
Original Assignee
オイレス工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by オイレス工業株式会社 filed Critical オイレス工業株式会社
Publication of WO2017111162A1 publication Critical patent/WO2017111162A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
    • F16L27/053—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces held in place by bolts passing through 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
    • F16L27/06—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces

Definitions

  • the present invention relates to a joint structure for connecting two members.
  • Exhaust gas from an engine such as a motorcycle is led to an exhaust pipe provided in the vehicle and discharged to the outside.
  • an exhaust pipe is not configured as a single unit.
  • the exhaust pipe structure of a motorcycle includes an exhaust pipe that guides exhaust gas exhausted from an engine located substantially in the center of the vehicle, and a muffler that is connected to the exhaust pipe and is located in the vicinity of the rear wheel tire. It consists of.
  • the exhaust pipe is composed of a plurality, and each is connected by, for example, a spherical joint.
  • the muffler can be moved away from the rear tire during puncture repair work on the rear wheel tire, and puncture repair can be performed without removing the muffler.
  • the conventional joint structure in general, there is a direction in the operation of the exhaust pipe to be connected.
  • both exhaust pipes to be connected are fixed by bolts and flanges, the shaft of the exhaust pipe is used. The rotation around the rotation axis is restricted. Therefore, the exhaust pipe cannot be rotated at the joint portion when the rear tire is punctured. Also, the connected exhaust pipes cannot be swung.
  • Patent Document 1 discloses relative swinging displacement (in a circumferential direction with respect to the axis of the exhaust pipe) caused by a twist generated in the exhaust pipe.
  • an exhaust pipe joint structure is disclosed in which the upstream exhaust pipe and the downstream exhaust pipe connected to each other can be displaced relatively. According to this joint structure, the connected exhaust pipe can rotate and swing.
  • the exhaust pipe joint structure described in Patent Document 1 is only for the purpose of preventing transmission of engine vibration, and although the exhaust pipe can be rotated and swung in the joint structure portion, A sliding member is used as a member that bears the movement, and the sliding member cannot be held at the swung position. In this case, even if the muffler is withdrawn from the vicinity of the rear tire at the time of tire puncture repair, there is a possibility that the muffler may return to the original position, and it is necessary to fix it by some other means.
  • connection part In addition to a tubular member such as an exhaust pipe, when any two members are connected, the connection part is held at a position rotated or oscillated from the normal use position in the same manner as the exhaust pipe as described above. It may be desirable to do so.
  • the present invention has been made in view of the above-described conventional problems, and provides a joint structure in which two members can be connected to each other so as to be able to rotate and swing, and the rotating and swinging state can be maintained. is there.
  • the joint structure of the present invention is a joint structure for connecting the first member and the second member,
  • the end portion of the first member has a spherical band whose outer surface is a convex spherical shape and whose inner surface is a concave spherical shape
  • the second member has a first attached member protruding to the outside at a position spaced from the end portion,
  • a sliding member is disposed between the inner surface of the ball member of the first member and the end of the second member,
  • a second accessory member having an opening is located at a position where the outer diameter of the ball band portion of the outer surface of the ball band portion is maximized.
  • a clearance is provided between an end of the ball member of the first member and a surface of the first accessory member on the first member side, and the first accessory member and the second accessory member are It is characterized by being pressed in the direction in which the facing interval is narrowed.
  • the inner surface of the ball member of the first member and the sliding member disposed between the inner surface of the ball member of the first member and the end of the second member are slidably in contact with each other. And having a clearance between the end of the first belt member and the first accessory member, the axes of the first member and the second member coincide with each other, and the axes intersect. Can be in a state. That is, the first member and the second member can swing relative to each other. Further, since the rotation about the axis of the first member and the second member as the rotation axis is not restricted, the first member and the second member can rotate 360 ° with respect to each other.
  • the opening of the second attachment member and the outer surface of the ball portion of the first member, and The inner surface of the ball band portion of the first member and the sliding member are in contact with each other with a certain force by the pressing of the first accessory member and the second accessory member protruding from the second member.
  • the outer surface of the ball belt portion of the first member is disposed in a state of sliding contact with the opening of the second accessory member, and is in contact with a certain force, so that the outer surface and the opening are not in contact with each other.
  • a frictional force is generated, and the first member and the second member can be kept rotated or oscillated by the frictional force.
  • the first member and the second member are connected so as to be rotatable and swingable, and the state can be maintained when rotated and / or rocked.
  • the first member and the second member are tubular, and the sliding member is a ball-shaped seal body that can be fitted to the inner surface of the ball band portion of the first member. Can do.
  • the connection portion of the first member and the second member, which are tubular members is sealed, it can be rotated or swung while maintaining airtightness, and the rotated or swung state is maintained. can do.
  • the second attachment member further includes a plurality of bolt insertion holes through which the bolts are inserted, and a plurality of spring receiving portions that receive coil springs that wind the bolts through the bolt insertion holes.
  • a bolt with a coil spring wound is inserted into each of the plurality of bolt insertion holes in a state where the coil spring is in contact with the head of the bolt and the spring receiving portion, and is fastened and fixed to the first accessory member. It can be set as the structure currently made. With this configuration, the first attachment member and the second attachment member are pressed in a direction in which the facing interval is narrowed.
  • FIG. 5A is a top view
  • FIG. 5B is a side view showing another embodiment of the plate-like member according to the present invention
  • FIG. 6A is a top view
  • FIG. 6B is a side view showing another embodiment of the plate-like member according to the present invention.
  • the joint structure of the present invention is applied to the connection of an exhaust pipe of a motorcycle.
  • 1 to 4 is a joint structure for connecting an upper exhaust pipe 12 (first member) and a lower exhaust pipe 14 (second member).
  • the upper exhaust pipe 12 has an end portion on the side connected to the lower exhaust pipe 14 along the axial direction of the upper exhaust pipe 12, a spherical band portion whose outer surface is a convex spherical shape and whose inner surface is a concave spherical shape.
  • the lower exhaust pipe 14 has a flange 16 (first accessory member) that protrudes to the outside at a position spaced apart from the end connected to the upper exhaust pipe 12 along the axial direction of the lower exhaust pipe 14.
  • a spherical band seal body 18 sliding member that can slide on the inner surface of the spherical band portion 12A of the upper exhaust pipe 12 is fitted to the end of the lower exhaust pipe 14.
  • the ball-shaped seal body 18 has a ball-band shape having the same radius of curvature as the inner surface of the ball band portion 12A of the upper exhaust pipe 12. Therefore, the ball-shaped seal body 18 and the ball-band portion 12A of the upper exhaust pipe 12 are fitted in a state in which the airtightness inside the upper exhaust pipe 12 and the lower exhaust pipe 14 is maintained. On the other hand, the end of the spherical band portion 12A of the upper exhaust pipe 12 and the surface of the flange 16 on the upper exhaust pipe 12 side are not in contact with each other and have a clearance C as shown in FIG. Although the ball-shaped seal body 18 is a separate member, it may be formed integrally with the lower exhaust pipe 14.
  • the upper exhaust pipe 12 and the lower exhaust pipe 14 are connected in a state where the inner surface of the spherical band portion 12A of the upper exhaust pipe 12 and the spherical seal body 18 of the lower exhaust pipe 14 are in contact with each other. is doing. Then, when the upper exhaust pipe 12 and the lower exhaust pipe 14 are connected, the fitting part is sealed by fitting the ball-shaped seal body 18 and the ball band part 12A of the upper exhaust pipe 12, and the inside of the exhaust pipe is sealed. Airtightness is ensured.
  • a plate-like member 20 (second accessory member) having an opening 20A that can be slidably contacted with the outer surface around the outer surface of the ball band portion 12A of the upper exhaust pipe 12 is provided with the opening portion 20A of the ball band portion 12A.
  • the outer surface of the spherical band portion 12A is provided so as to be slidably brought into contact with a portion further away from the plate-like member 20 than the position where the outer diameter is maximum, and to face the flange 16.
  • the plate-like member 20 further includes two bolt insertion holes through which the bolts are inserted and two spring receiving portions that receive the coil springs 24 that wind the bolts 22 that are inserted through the bolt insertion holes.
  • a female screw is formed at a position of the flange 16 facing the bolt insertion hole of the plate-like member 20, the bolt 22 is screwed by the female screw, and the bolt 22 is fastened and fixed to the flange 16. That is, the flange 16 and the plate-like member 20 are pressed in the direction in which the facing interval is narrowed by the biasing force of the coil spring 24.
  • a female screw is formed on the flange 16 and fastened and fixed.
  • a nut may be provided at the lower portion of the flange 16 and a bolt may be screwed to the nut.
  • the fastening means may be fastened and fixed.
  • a clearance C is provided between the end of the spherical zone 12A of the upper exhaust pipe 12 and the surface of the flange 16 on the upper exhaust pipe 12 side as shown in FIG. Due to this clearance C, the swinging of the upper exhaust pipe 12 is not restricted, and the axes of the upper exhaust pipe 12 and the lower exhaust pipe 14 (respectively P1 and P2) coincide (state of FIG. 3), It can be set as the state (state of Drawing 4) where the axis concerned intersects. That is, the upper exhaust pipe 12 as the first member and the lower exhaust pipe 14 as the second member can swing relative to each other.
  • the upper exhaust pipe 12 is not restricted from rotating about P1 as a rotation axis, and can rotate 360 ° with respect to the lower exhaust pipe 14.
  • the flange 16 of the lower exhaust pipe 14 and the plate-like member 20 are pressed in the direction in which the facing interval is narrowed, so that the opening 20A of the plate-like member 20 and the ball section of the upper exhaust pipe 12 are pressed.
  • the outer surface of 12A, the inner surface of the ball section 12A of the upper exhaust pipe 12, and the ball-shaped seal body 18 disposed at the joint of the upper exhaust pipe 12 and the lower exhaust pipe 14 are connected to the flange 16 of the lower exhaust pipe 14 and
  • the plate member 20 is in contact with a certain force by pressing.
  • the outer surface of the spherical band portion 12A of the upper exhaust pipe 12 is slidably disposed in the opening 20A of the plate-like member 20 and is in contact with a certain force, so that the outer surface and the A frictional force is generated in the opening. Due to this frictional force, the upper exhaust pipe 12 and the lower exhaust pipe 14 cannot freely rotate and swing, and can maintain the rotated and / or swinged state (the state shown in FIG. 4).
  • the pressing force applied to the flange 16 and the plate-like member 20 can be adjusted by adjusting the tightening degree of the bolt. That is, when the pressing force is weakened, the upper exhaust pipe 12 and the lower exhaust pipe 14 can be easily rotated and swung, but the force for maintaining the state is weakened. On the contrary, when the pressing force is increased, the upper exhaust pipe 12 and the lower exhaust pipe 14 are difficult to rotate and swing, but the force for maintaining the state is increased. Therefore, it is preferable to set in consideration of the balance of the pressing force applied to the flange 16 and the plate-like member 20.
  • the bolt and the coil spring are used as means for pressing and fixing the flange 16 and the plate-like member 20 in the direction in which the facing distance is narrowed.
  • the present invention is not limited thereto, and for example, the flange 16 and the plate-like member 20 may be clamped by clamping means such as clips from both sides.
  • the flange 16 as the first attachment member and the plate-like member 20 as the second attachment member are both substantially plate-shaped, but the opposing distance between the first attachment member and the second attachment member is the same.
  • Another shape may be used as long as it can be pressed in the narrowing direction.
  • the plate-like member 20 is composed of two members. That is, it functions as the plate-like member 20 by connecting these two members.
  • FIG. 5A is a top view of the plate-like member 30, and FIG. 5B is a side view showing a part of FIG. 5A seen through.
  • the plate-like member 30 shown in FIG. 5 is formed by connecting two half members 30 ⁇ / b> A and half members 30 ⁇ / b> B located on the left and right of the alternate long and short dash line L.
  • a female screw hole 32 extending in a direction perpendicular to the alternate long and short dash line L is formed in each of the vicinity of the upper part and the lower part of the half member 30A in FIG. 5 and is formed in the vicinity of the upper part and the lower part of the half member 30B.
  • FIG. 6A is a top view of the plate-like member 40
  • FIG. 6B is a side view showing a part of FIG. 6A seen through.
  • the plate-like member 40 shown in FIG. 6 is formed by connecting two half members 40A and half members 40B located on the left and right of the alternate long and short dash line L in FIG.
  • the half member 40A and the half member 40B are rotatably connected via a link mechanism 42 located in the vicinity of the upper part in FIG. 6, and in the vicinity of the lower part, bolts 44 are inserted through the formed through holes.
  • the nut 46 is fastened and fixed to the male screw of the bolt 44 by screwing. By removing the bolt 44 and the nut 46 from the plate member 40, the half member 40A and the half member 40B can be rotated via the link mechanism 42.
  • the maximum outer diameter of the ball portion 12A at the end of the upper exhaust pipe 12 is the opening 20A of the plate-like member 20. Therefore, it is necessary to insert the upper exhaust pipe 12 into the opening 20A of the plate-like member 20 before forming (welding) the ball band portion 12A to the upper exhaust pipe 12.
  • the plate-shaped members 30 and 40 shown in FIG.5 and FIG.6 it is not necessary. The reason is that the plate-like member 30 shown in FIG. 5 can be separated into the half member 30A and the half member 30B, so that even after the ball belt portion 12A is formed in the upper exhaust pipe 12, the ball belt portion.
  • the plate member 30 can be assembled by connecting the half member 30A and the half member 30B without being affected by 12A.
  • the half member 40A and the half member 40B can be rotated via the link mechanism 42 by removing the bolt 44, and the link mechanism of the half member 40A and the half member 40B is used.
  • the opposing portions can be spaced apart from the outer diameter of the upper exhaust pipe 12. Therefore, even after the ball band portion 12A is formed in the upper exhaust pipe 12, the half member 40A and the half member 40B can be connected and the plate member 40 can be assembled without being affected by the ball band portion 12A. it can.
  • FIG. 7 is a side view of a motorcycle in which a muffler and an exhaust pipe are connected using the joint structure shown in FIGS. 1 to 4, and FIG. 8 is a view from the rear.
  • An exhaust pipe 56 is connected to an exhaust gas exhaust port of the engine 52 of the motorcycle 50 shown in FIG. Further, the exhaust pipe 56 is connected to a muffler 60 located in the vicinity of the rear wheel tire 58. In FIG. 7, the muffler 60 is in the position A in FIG. 8 when the joint structure 54 is not rotating.
  • the muffler 60 hinders the work, such as when repairing the puncture of the rear wheel tire 58, a member (bolt) that supports the muffler 60 is removed, and the muffler 60 is retracted in a direction away from the rear wheel tire 58.
  • the exhaust pipe 56 rotates and swings, and the muffler 60 can be moved to the position B in FIG.
  • the joint structure 54 can hold
  • the joint structure of the present invention is applied to the connection of the exhaust pipe of the motorcycle, but the present invention is not limited to this form.
  • the two members can be rotated and swung, and when rotated and / or swung, the state can be maintained.
  • the shape of the first member and the second member is also arbitrary, and may be a block body or the like in addition to the above-described tubular shape.
  • Joint structure 12 Upper exhaust pipe (first member) 14 Lower exhaust pipe (second member) 16 Flange (first accessory) 18 Ball-seal seal (sliding member) 20, 30, 40 Plate member (second accessory member) 22 Bolt 24 Coil spring 50 Bike 52 Engine 54 Joint structure 56 Exhaust pipe 58 Rear wheel tire 60 Muffler

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Silencers (AREA)
  • Joints Allowing Movement (AREA)

Abstract

L'invention concerne une structure d'accouplement permettant à un premier élément et à un second élément à relier de pouvoir tourner et osciller, et aux états de rotation et d'oscillation d'être préservés. Dans la structure d'accouplement, l'extrémité du premier élément (12) forme un segment sphérique dans lequel la surface externe décrit la forme d'une surface sphérique convexe et la surface interne décrit la forme d'une surface sphérique concave. Le second élément (14) présente un premier élément de fixation (16) faisant saillie vers l'extérieur dans une position éloignée de l'extrémité. Un élément coulissant (18) est disposé entre la surface interne du segment sphérique du premier élément et l'extrémité du second élément. Un second élément de fixation (20) présentant une ouverture est fourni sur la périphérie de la surface externe du segment sphérique du premier élément de sorte que l'ouverture soit maintenue en contact direct, de manière coulissante, avec la surface externe du segment sphérique dans une partie éloignée du second élément au-delà de la position où le diamètre externe du segment sphérique est à son maximum. Un espace libre est prévu entre l'extrémité du segment sphérique du premier élément et la surface du premier élément de fixation orienté vers le premier élément, et le premier élément de fixation et le second élément de fixation sont pressés dans la direction dans laquelle l'écart entre eux diminue.
PCT/JP2016/088722 2015-12-25 2016-12-26 Structure d'accouplement WO2017111162A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015253526A JP2017116020A (ja) 2015-12-25 2015-12-25 継手構造
JP2015-253526 2015-12-25

Publications (1)

Publication Number Publication Date
WO2017111162A1 true WO2017111162A1 (fr) 2017-06-29

Family

ID=59090561

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/088722 WO2017111162A1 (fr) 2015-12-25 2016-12-26 Structure d'accouplement

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JP (1) JP2017116020A (fr)
WO (1) WO2017111162A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR991025A (fr) * 1949-07-20 1951-09-28 Saarlandische Steinindustrie O Pièce de déviation pour conduites de transport hydraulique et pneumatique
JPS5252120U (fr) * 1975-10-13 1977-04-14
JPS59127812U (ja) * 1983-02-17 1984-08-28 マツダ株式会社 エンジンの排気管継手構造
JPH0165482U (fr) * 1988-10-14 1989-04-26
US5393108A (en) * 1993-06-11 1995-02-28 Indian Head Industries, Inc. Spherical exhaust flange gasket with interference fit
JPH11336968A (ja) * 1998-05-28 1999-12-07 Oiles Ind Co Ltd 排気管継手構造
EP1132588A1 (fr) * 2000-02-25 2001-09-12 Renault Agencement pour l'assemblage d'une ligne d'échappement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR991025A (fr) * 1949-07-20 1951-09-28 Saarlandische Steinindustrie O Pièce de déviation pour conduites de transport hydraulique et pneumatique
JPS5252120U (fr) * 1975-10-13 1977-04-14
JPS59127812U (ja) * 1983-02-17 1984-08-28 マツダ株式会社 エンジンの排気管継手構造
JPH0165482U (fr) * 1988-10-14 1989-04-26
US5393108A (en) * 1993-06-11 1995-02-28 Indian Head Industries, Inc. Spherical exhaust flange gasket with interference fit
JPH11336968A (ja) * 1998-05-28 1999-12-07 Oiles Ind Co Ltd 排気管継手構造
EP1132588A1 (fr) * 2000-02-25 2001-09-12 Renault Agencement pour l'assemblage d'une ligne d'échappement

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