WO2014162578A1 - Silencieux - Google Patents

Silencieux Download PDF

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Publication number
WO2014162578A1
WO2014162578A1 PCT/JP2013/060419 JP2013060419W WO2014162578A1 WO 2014162578 A1 WO2014162578 A1 WO 2014162578A1 JP 2013060419 W JP2013060419 W JP 2013060419W WO 2014162578 A1 WO2014162578 A1 WO 2014162578A1
Authority
WO
WIPO (PCT)
Prior art keywords
protector
cylindrical body
muffler
flange portion
winding
Prior art date
Application number
PCT/JP2013/060419
Other languages
English (en)
Japanese (ja)
Inventor
敬章 中川
Original Assignee
中川産業株式会社
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 中川産業株式会社 filed Critical 中川産業株式会社
Priority to PCT/JP2013/060419 priority Critical patent/WO2014162578A1/fr
Publication of WO2014162578A1 publication Critical patent/WO2014162578A1/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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • 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
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F01N13/1844—Mechanical joints
    • F01N13/185—Mechanical joints the connection being realised by deforming housing, tube, baffle, plate, or parts thereof

Definitions

  • the present invention relates to a muffler, and more particularly to an improvement in a protector mounting structure provided on a muffler that is exposed from a vehicle body.
  • a muffler In motorcycles, buggy cars, snowmobiles, etc., a muffler is exposed from the vehicle body, so a protector may be provided to improve its appearance and heat insulation.
  • a protector may be provided to improve its appearance and heat insulation.
  • Patent Document 1 a mounting stay is welded and fixed to the outer periphery of the muffler body, the mounting hole of the protector is aligned with the mounting hole of the mounting stay, and the protector is screwed to the mounting stay. By doing so, the protector is attached to the muffler body.
  • the conventional muffler has a problem in that it requires a manufacturing man-hour because it is necessary to fix the protector to the mounting stay by screwing the mounting stay for attaching the protector to the muffler body by welding or the like. In addition, there is a problem that the screws are loosened by vibrations or the like, or the screws are loosened and relatively easily stolen.
  • an object of the present invention is to provide a muffler that can reduce the trouble of mounting the protector and can be securely mounted.
  • a muffler (M) provided with a protector (1) covering at least a part of the outer periphery of the main body (2).
  • a cylindrical body (21) is configured by a cylindrical body (21) to be accommodated and end plates (22, 23) provided with exhaust outlets (31, 32) while closing both side openings of the cylindrical body (21). And the outer peripheral edges of the end plates (22, 23) are coupled by winding and a part (13, 14) of the protector (1) is integrally coupled to the winding portion (24). Yes.
  • the protector when the opening edge of the cylindrical body and the outer peripheral edge of the end plate are joined by winding, a part of the protector can be simultaneously connected to the winding part. There is no need to provide a mounting stay or screw the protector to the mounting stay, and the number of steps for mounting the protector can be reduced. Moreover, since it does not loosen due to vibration or the like unlike screw fixing, it can be securely attached.
  • flange portions (15, 16) are formed on the edges (13, 14) of the protector, and the flange portions (15, 16) are connected to the tightening portion (24) and the cylindrical body (21). It is tightly attached to the outer periphery and is in a coupled state.
  • the flange portion is tightly sandwiched between the tightening portion and the outer periphery of the cylindrical body, so that the flange portion can be clamped simultaneously with the completion of the tightening process.
  • the protector (1) extends substantially parallel to the outer periphery of the cylindrical body (21), and both end edges (13, 14) are bent toward the outer peripheral surface of the cylindrical body (21).
  • the flanges (15, 16) are formed at the tip.
  • the protector can be more securely attached to the muffler main body by narrowing the flange portions at the ends of both end edges.
  • the trouble of attaching the protector is reduced, and reliable attachment is possible.
  • FIG. 2 is an end view taken along arrow A in FIG. 1.
  • FIG. 2 is an end view as viewed in the direction of arrow B in FIG. 1.
  • FIG. 5 is an end view taken in the direction of arrow C in FIG. 4.
  • FIG. 5 is an end view taken in the direction of arrow D in FIG. 4.
  • FIG. 7 is a sectional view taken along line VII-VII in FIG. 1. It is sectional drawing which shows a winding process.
  • FIG. 1 shows a plan view of a muffler M for a motorcycle provided with a protector 1
  • FIGS. 2 and 3 show end views taken along arrows A and B in FIG. 1, respectively.
  • the muffler body 2 includes a cylindrical body 21 formed by cylindrically forming a stainless metal plate, and a known silencing mechanism is accommodated inside the cylindrical body 21.
  • Both side openings of the cylindrical body 21 are closed by end plates 22 and 23 mounted in a structure to be described later.
  • end plates 22 and 23 mounted in a structure to be described later.
  • an inflow pipe 31 as an exhaust circulation port connected to an exhaust pipe (not shown) protrudes, and slightly downward from the center of the downstream end plate 23.
  • a tail pipe 32 as an exhaust circulation port protrudes.
  • the protector 1 is provided on one side of the upper half of the muffler main body 2 (the surface that becomes the outer side when installed on a motorcycle).
  • the protector 1 is formed by integrally forming a stainless steel metal plate.
  • FIG. 4 shows a plan view thereof
  • FIGS. 5 and 6 show end views as viewed in the direction of arrows C and D in FIG.
  • the protector 1 is formed in a circular arc shape as a whole, and extends parallel to the outer peripheral surface of the cylindrical body 21 while maintaining the same radius of curvature of the circular arc.
  • the upstream end 11 has a relatively large width, and gradually decreases gradually toward the downstream end 12 at the other end.
  • the both end edges 13 and 14 of the protector 1 are bent stepwise on both the upstream side and the downstream side to be deformed by the same amount, and the end edges 13 and 14 are fixed outward in the longitudinal direction.
  • Flange portions 15 and 16 bent at a width are formed.
  • the inner peripheral radii of the flange portions 15 and 16 are substantially equal to the outer peripheral radius of the cylindrical body 21.
  • FIG. 7 shows the protector 1 attached to the upstream end of the muffler M.
  • the upstream opening edge of the cylindrical body 21 is hermetically coupled with the outer peripheral edge of the upstream end plate 22 by double winding, and the upstream end of the protector 1 is connected to the winding portion 24.
  • a flange portion 15 formed on the edge 13 is sandwiched.
  • the flange portion 16 of the downstream end edge 14 (FIG. 4) of the protector 1 has a similar structure, and is sandwiched between winding portions between the downstream opening edge of the cylindrical body 21 and the outer peripheral edge of the downstream end plate 23. .
  • the protector 1 is fixed to the muffler body 2 by the flange portions 15 and 16 of the upstream and downstream end edges 13 and 14 being sandwiched between the winding fastening portions.
  • FIG. 8 shows a process for fixing the upstream edge 13 of the protector 1.
  • a flange portion 211 that bends outward at a right angle is formed at the opening edge of the cylindrical body 21, while the upstream end plate 22 has a stepped right angle on the entire outer periphery.
  • a bent portion 221 is formed, the inner peripheral portion of the end plate 22 is fitted into the cylindrical body 21, and a flange portion 222 extending relatively long outward from the bent portion 221 is positioned along the flange portion 211.
  • the flange portion 222 is folded back so as to cover the flange portion 211, and the flange portion 15 of the upstream edge 13 of the protector 1 is in contact with the outer periphery of the cylindrical body 21 in this state. It is made to contact
  • the flange portion 211 and the flange portion 222 are integrally bent onto the flange portion 15 (arrow in FIG. 8 (2)) to complete the double winding (FIG. 7), and at the same time, the flange 24 is moved by the winding portion 24.
  • the portion 15 is held between the outer peripheral surface of the cylindrical body 21.
  • the protector is a metal plate molded product, but is not limited thereto, and may be a resin molded product, for example.
  • the winding does not necessarily need to be double winding.
  • the flange portion is formed on the protector, and the flange portion is tightly fitted between the tightening portion and the outer peripheral surface of the cylindrical body.
  • the method of connecting a part of the protector to the tightening portion is not limited to narrowing, and for example, the protector may be wound around the tightening portion.

Landscapes

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

Abstract

Le problème décrit par la présente invention est de réduire la main d'œuvre nécessaire à la fixation d'un dispositif de protection et permettant au dispositif de protection d'être fixé de manière sûre. La solution selon l'invention porte sur un corps principal de silencieux (2) qui est doté d'un corps cylindrique (21) qui contient un mécanisme de silencieux et de plaques d'extrémité (22, 23) qui ferment les ouvertures au niveau de l'une ou l'autre extrémité du corps cylindrique (21) et qui comportent un tuyau de circulation (31) et un tuyau arrière (32). Les bords des ouvertures du corps cylindrique (21) et les bords périphériques externes des plaques d'extrémité (22, 23) sont raccordés par sertissage de rouleaux et les parties périphériques (15, 16) formées au niveau des bords d'extrémité (13, 14) du dispositif de protection (1) sont raccordées en étant intercalées entre les parties serties (24) et la circonférence externe du corps cylindrique (21).
PCT/JP2013/060419 2013-04-05 2013-04-05 Silencieux WO2014162578A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/060419 WO2014162578A1 (fr) 2013-04-05 2013-04-05 Silencieux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/060419 WO2014162578A1 (fr) 2013-04-05 2013-04-05 Silencieux

Publications (1)

Publication Number Publication Date
WO2014162578A1 true WO2014162578A1 (fr) 2014-10-09

Family

ID=51657906

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/060419 WO2014162578A1 (fr) 2013-04-05 2013-04-05 Silencieux

Country Status (1)

Country Link
WO (1) WO2014162578A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5615416U (fr) * 1979-07-17 1981-02-10
JPH07259531A (ja) * 1994-03-28 1995-10-09 Calsonic Corp 消音器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5615416U (fr) * 1979-07-17 1981-02-10
JPH07259531A (ja) * 1994-03-28 1995-10-09 Calsonic Corp 消音器

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