Exhaust pipe cover structure for saddle-ride type vehicle

Patent metadata

Field	Value
Publication number	US-9573459-B2
Application number	US-201314066323-A
Country	US
Kind code	B2
Filing date	Oct 29, 2013
Priority date	Dec 26, 2012
Publication date	Feb 21, 2017
Grant date	Feb 21, 2017

Abstract

An exhaust pipe cover structure for a saddle-ride type vehicle allows an exhaust pipe cover to be easily positioned and attached even in the case of attaching the exhaust pipe cover to an exhaust pipe attached to an engine. Boss portions each having an internal thread through which an exhaust pipe cover is fastened are provided on a lateral surface of an exhaust pipe. Hooking holes capable of being hooked on the boss portions with play are integrally provided on the inner side of the exhaust pipe cover. In a state where the hooking portions are hooked on the boss portions, part of the boss portions is viewable through attaching holes of the exhaust pipe cover.

First claim

I claim:

1. An exhaust pipe cover structure for a saddle-ride type vehicle, comprising:
an exhaust pipe; and
an exhaust pipe cover which covers a lateral side of said exhaust pipe said and is fastened to said exhaust pipe, said exhaust pipe cover having an attaching hole formed therein,
wherein a boss portion is provided on a lateral surface of said exhaust pipe, said boss portion having an internal thread through which said exhaust pipe cover is fastened to said exhaust pipe,
wherein a hooking portion is integrally provided on an inner side of said exhaust pipe cover, said hooking portion including a hooking hole inwardly spaced from said attaching hole formed in said exhaust pipe cover, with as gap therebetween, said hooking hole being capable of being hooked on said boss portion,
wherein, in a state where said hooking portion is hooked on said boss portion, part of said boss portion is viewable through said attaching hole formed in said exhaust pipe cover,
wherein said boss portion is capable of penetrating said hooking hole but is not capable of penetrating said attaching hole,
wherein said exhaust pipe cover includes a plate-shaped piece,
wherein said hooking portion is provided in said plate-shaped piece,
wherein said hooking hole is a substantially elliptical loose penetration hole which allows said boss portion to loosely penetrate therethrough, and
wherein said hooking hole is elongated along an axial line of the exhaust pipe.

2. The exhaust pipe cover structure for a saddle-ride type vehicle according to claim 1 , wherein said hooking portion is capable of being hooked on said boss portion with play.

3. The exhaust pipe cover structure for a saddle-ride type vehicle according to claim 1 ,
wherein an upper inner periphery of said hooking hole forms an upwardly bulging arch-shaped guide, and
wherein, in the state where said hooking portion is hooked on said boss portion, said upwardly bulging arch-shaped guide comes into contact with said boss portion to restrict a moving range of said exhaust pipe cover relative to said exhaust pipe.

4. The exhaust pipe cover structure for a saddle-ride type vehicle according to claim 2 ,
wherein an upper inner periphery of said hooking hole forms an upwardly bulging arch-shaped guide, and
wherein, in the state where said hooking portion is hooked on said boss portion, said upwardly bulging arch-shaped guide comes into contact with said boss portion to restrict a moving range of said exhaust pipe cover relative to said exhaust pipe.

5. The exhaust pipe cover structure for a saddle-ride type vehicle according to claim 3 , wherein said hooking portion of said plate-shaped piece is disposed at a position separated from said exhaust pipe cover.

6. The exhaust pipe cover structure for a saddle-ride type vehicle according to claim 4 , wherein said hooking portion of said plate-shaped piece is disposed at a position separated from said exhaust pipe cover.

7. The exhaust pipe cover structure for a saddle-ride type vehicle according to claim 5 ,
wherein said exhaust pipe cover extends to a vicinity of an exhaust port of an engine of the saddle-ride type vehicle, and
wherein said exhaust pipe includes a catalyst at a position downstream of said exhaust pipe cover.

8. The exhaust pipe cover structure for a saddle-ride type vehicle according to claim 6 ,
wherein said exhaust pipe cover extends to a vicinity of an exhaust port of an engine of the saddle-ride type vehicle, and
wherein said exhaust pipe includes a catalyst at a position downstream of said exhaust pipe cover.

9. The exhaust pipe cover structure for a saddle-ride type vehicle according to claim 7 , wherein, in a state where said hooking portion is hooked on said boss portion, part of said internal thread provided in said boss portion is viewable through said attaching hole of said exhaust pipe cover.

10. The exhaust pipe cover structure for a saddle-ride type vehicle according to claim 8 , wherein, in a state where said hooking portion is hooked on said boss portion, part of said internal thread provided in said boss portion is viewable through said attaching hole of said exhaust pipe cover.

11. The exhaust pipe cover structure for a saddle-ride type vehicle according to claim 1 ,
wherein said hooking hole, said boss portion and said attaching hole satisfy the following formulas:
RA<R 1< RA+ 2( r+t )
RA<R 2< RA+ 2( r+t )

wherein R 1 is a shorter radius of said elliptical hole,
wherein R 2 is as longer radius of said elliptical hole,
wherein RA is the radius of said attaching hole,
wherein r is the radius of said internal thread provided in said boss portion, and
wherein t is a thickness of said boss portion.

12. The exhaust pipe cover structure for a saddle-ride type vehicle according to claim 11 , wherein said hooking hole, said boss portion and said attaching hole satisfy the following formulas:
RA<R 1< RA+ 2 r+t
RA<R 2< RA+ 2 r+t.

13. The exhaust pipe cover structure for a saddle-ride type vehicle according to claim 11 , wherein said hooking hole, said boss portion and said attaching hole satisfy the following formulas:
RA<R 1<3 r+ 2 t
RA<R 2<3 r+ 2 t
RA<R 1<3 r+t
RA<R 2<3 r+t.

14. The exhaust pipe cover structure for a saddle-ride type vehicle according to claim 1 ,
wherein the exhaust pipe includes an upstream pipe portion located on an upstream side of the exhaust pipe and an downstream pipe portion located downstream of the upstream pipe portion, the downstream pipe portion extending at a different angle titan the upstream pipe portion,
wherein the upstream pipe portion and the downstream pipe portion are each provided with at least one boss portion, and
wherein the exhaust pipe cover is fastened to the boss portions at different locations and different angles.

Assignees

• Honda Motor Co Ltd

Inventors

• Shimomura Nobuyuki

Classifications

• B60Y2200/12

  Motorcycles, Trikes; Quads; Scooters · CPC title

• B62K11/04

  characterised by the engine being between front and rear wheels · CPC title

• B60K13/04 Primary

  concerning exhaust · CPC title