An air cleaner and an exhaust pipe insulator attaching structure for a vehicle engine. The air cleaner on a rear side of the engine includes an air cleaner element disposed in an upper portion inside an air cleaner case. An air cleaner intake-air duct is inserted into the air cleaner case obliquely
An air cleaner and an exhaust pipe insulator attaching structure for a vehicle engine. The air cleaner on a rear side of the engine includes an air cleaner element disposed in an upper portion inside an air cleaner case. An air cleaner intake-air duct is inserted into the air cleaner case obliquely from above, and then is curved inside the air cleaner case and extended up to directly underneath the air cleaner element. An exhaust duct provided at a front side of the engine is provided with an arc-shaped heat insulator structure. An attachment member includes a curved arc-shaped contact portion and attachment portions formed on an outward side of the arc-shaped contact portion in a radial direction. An inner-peripheral face of the arc-shaped contact portion of the attachment member is brought into contact with an outer-peripheral face of the exhaust duct, and held in place by a band member.
대표청구항▼
What is claimed is: 1. A heat insulator attaching structure for a vehicle exhaust pipe, comprising: a heat insulator with a cross-section orthogonal to an extending direction thereof being curved substantially into an arc shape is attached to an exhaust pipe of a vehicle engine so as to allow dista
What is claimed is: 1. A heat insulator attaching structure for a vehicle exhaust pipe, comprising: a heat insulator with a cross-section orthogonal to an extending direction thereof being curved substantially into an arc shape is attached to an exhaust pipe of a vehicle engine so as to allow distance therebetween; an attachment member attached to an inner-peripheral face of the heat insulator, the attachment member being formed with a single curved arc-shaped contact portion and a pair of attachment portions, the attachment portions being formed on outward sides of the arc-shaped contact portion in a radial direction thereof so as to allow distance therebetween for attaching the attachment member to the inner-peripheral face of the heat insulator, an inner-peripheral face of the arc-shaped contact portion of the attachment member contacting an outer-peripheral face of the exhaust pipe; and a band member fitted around an outer-peripheral face of the arc-shaped contact portion of the attachment member and the outer-peripheral face of the exhaust pipe, thereby fastening the attachment member to the exhaust pipe, wherein the heat insulator, the attachment member, and the band member are separate elements. 2. The heat insulator attaching structure for a vehicle exhaust pipe according to claim 1, wherein blocking edge portions are formed in the attachment member, the blocking edge portions rising on the outer-peripheral face side, at each of two curved edge portions of the arc-shaped contact portion. 3. The heat insulator attaching structure for a vehicle exhaust pipe according to claim 2, wherein the attachment portions are formed in the attachment member, each on an opposite side of each of the blocking edge portions to the arc-shaped contact portion. 4. The heat insulator attaching structure for a vehicle exhaust pipe according to claim 3, wherein the band member fits between the blocking edge portions. 5. The heat insulator attaching structure for a vehicle exhaust pipe according to claim 2, wherein the blocking edge portions extend in a radial direction between the exhaust pipe and the heat insulator, a space being provided between the exhaust pipe and the heat insulator. 6. The heat insulator attaching structure for a vehicle exhaust pipe according to claim 1, wherein the exhaust pipe is substantially J-shaped, and includes a curved portion and a linear section. 7. The heat insulator attaching structure for a vehicle exhaust pipe according to claim 6, the heat insulator further comprising a curved section for fitting at least partially around the curved portion of the exhaust pipe, and a linear section for fitting at least partially around the linear portion of the exhaust pipe. 8. A saddle-riding vehicle with an engine, comprising: an air cleaner attached to a rear side of the engine having an air cleaner element disposed in an upper portion inside an air cleaner case; and a heat insulator attaching structure for a vehicle exhaust pipe attached to a front of the engine, the heat insulator attaching structure including: a heat insulator with a cross-section orthogonal to an extending direction thereof being curved substantially into an arc shape is attached to an exhaust pipe of a vehicle engine so as to allow distance therebetween; an attachment member attached to an inner-peripheral face of the heat insulator, the attachment member being formed with a single curved arc-shaped contact portion and a pair of attachment portions, the attachment portions being formed on outward sides of the arc-shaped contact portion in a radial direction thereof so as to allow distance there between for attaching the attachment member to the inner-peripheral face of the heat insulator, an inner-peripheral face of the arc-shaped contact portion of the attachment member contacting an outer-peripheral face of the exhaust pipe; and a band member fitted around an outer-peripheral face of the arc-shaped contact portion of the attachment member and the outer-peripheral face of the exhaust pipe, thereby fastening the attachment member to the exhaust pipe, wherein the heat insulator, the attachment member, and the band member are separate elements. 9. The saddle-riding vehicle with an engine according to claim 8, wherein blocking edge portions are formed in the attachment member, the blocking edge portions rising on the outer-peripheral face side at each of two curved edge portions of the arc-shaped contact portion. 10. The saddle-riding vehicle with an engine according to claim 9, wherein the attachment portions are formed in the attachment member, each on an opposite side of each of the blocking edge portions to the arc-shaped contact portion. 11. The saddle-riding vehicle with an engine according to claim 10, wherein the band member fits between the blocking edge portions. 12. The saddle-riding vehicle with an engine according to claim 9, wherein the blocking edge portions extend in a radial direction between the exhaust pipe and the heat insulator, a space being provided between the exhaust pipe and the heat insulator. 13. The saddle-riding vehicle with an engine according to claim 8, wherein the exhaust pipe is substantially J-shaped, and includes a curved portion and a linear section. 14. The saddle-riding vehicle with an engine according to claim 13, the heat insulator further comprising a curved section for fitting at least partially around the curved portion of the exhaust pipe, and a linear section for fitting at least partially around the linear portion of the exhaust pipe. 15. The saddle-riding vehicle with an engine according to claim 8, further comprising: an air cleaner element disposed in an upper portion inside an air cleaner case; and an air cleaner intake-air duct inserted into the air cleaner case obliquely from above, wherein the air cleaner intake-air duct curves inside the air cleaner case and extends to a position directly underneath the air cleaner element. 16. The saddle-riding vehicle with an engine according to claim 15, wherein substantially an entire opening portion of the air cleaner intake-air duct inside the air cleaner case is opposed to a side wall face of the air cleaner case. 17. The saddle-riding vehicle with an engine according to claim 16, wherein a drain port is provided in a bottom wall portion of the air cleaner case, at a position upstream of the opening portion in a direction of an air flow at the opening portion of the air cleaner intake-air duct inside the air cleaner case. 18. The saddle-riding vehicle with an engine according to claim 16, further comprising an attachment device on an end of the air cleaner intake-air duct inside the air cleaner case which is attached to a supporting portion provided in a standing manner on the bottom wall portion of the air cleaner case. 19. The heat insulator attaching structure for a vehicle exhaust pipe according to claim 1, wherein the arc-shaped contact portion of the attachment member is substantially semicircular in shape and also makes contacts with substantially half of the outer-peripheral face of the exhaust pipe. 20. The saddle-riding vehicle with an engine according to claim 8, wherein the arc-shaped contact portion of the attachment member is substantially semicircular in shape and also makes contacts with substantially half of the outer-peripheral face of the exhaust pipe. 21. The heat insulator attaching structure for a vehicle exhaust pipe according to claim 1, wherein the attachment portions are appropriately curved in accordance with shapes of attachment positions in the inner-peripheral face of the heat insulator, so that an entire face of each of the attachment portions comes into contact with the inner-peripheral face of the heat insulator. 22. The saddle-riding vehicle with an engine according to claim 8, wherein the attachment portions are appropriately curved in accordance with shapes of attachment positions in the inner-peripheral face of the heat insulator, so that an entire face of each of the attachment portions comes into contact with the inner-peripheral face of the heat insulator.
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이 특허에 인용된 특허 (11)
Hoeptner ; III Herbert W. (Morgan Hill CA), Adjustable shield for motorcycle exhaust pipe.
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