Straddle type vehicle

• US 7,975,792 B2
• Filed: 08/19/2008
• Issued: 07/12/2011
• Est. Priority Date: 08/20/2007
• Status: Expired due to Fees

• Current Assignee: Yamaha Hatsudoki Kabushiki Kaisha (Yamaha Corporation)
• Original Assignee: Yamaha Hatsudoki Kabushiki Kaisha (Yamaha Corporation)
• Inventors: Nobuhira, Takayuki
• Primary Examiner(s): WALTERS, JOHN DANIEL
• Application Number:
  US12/193,906
• Publication Number:
  US 20090050386A1
• Time in Patent Office: 1,057 Days
• Field of Search: 180/68.1, 180/68.2, 180/68.3, 180/309, 180/219, 296/192, 296/203.01, 296/190.09, 296/193.09, 296/78.1
• US Class Current: 180/68.2
• CPC Class Codes: B62J 17/02 shielding only the rider's front
• CPC Class Codes: B62J 17/06 Leg guards
• CPC Class Codes: B62J 40/00 Arrangements of air cleaners specially adapted for cycles
• CPC Class Codes: B62J 50/30 Means for ventilation within devices provided on the cycle, e.g. ventilation means in a battery container
• CPC Class Codes: B62K 2202/00 Motorised scooters
• CPC Class Codes: F16H 57/0416 Air cooling or ventilation
• CPC Class Codes: F16H 57/0489 with endless flexible members, e.g. belt CVTs
• CPC Class Codes: F16H 9/16 using two pulleys, both built-up out of adjustable conical parts

Abstract

A straddle-type vehicle provided with a transmission air intake passage for sending air into a transmission case housing a continuously variable transmission prevents an increase in vehicle width and prevents sand or the like from entering the air intake passage by covering the front side of the air intake passage. The transmission air intake passage extends upward from the transmission case on an outer side in a vehicle width direction of a main frame. A rearward cover covers the main frame and extends outward in the vehicle width direction to cover the rear side of the transmission air intake passage. A forward cover is curved forward from an edge outside in the vehicle width direction of a right leg shield part constructing the rearward cover and covers the transmission air intake passage from a front side.

Claims

1. A straddle-type vehicle comprising:

a cover arranged to cover a main frame, the main frame extending rearward from a front portion of a vehicle body;

a transmission case housing a belt-type continuously variable transmission arranged in a lower portion of the vehicle body; and

a transmission air intake passage extending upward from the transmission case and outward in a vehicle width direction of the main frame;

wherein

the cover includes;

a rearward cover arranged to cover the main frame, the rearward cover extending outward in the vehicle width direction from the main frame to cover a rear side of the transmission air intake passage; and

a forward cover connected to an outside edge of the rearward cover, the forward cover arranged to extend from the outside edge of the rearward cover toward a front side of the transmission air intake passage so as to cover an outer side of the transmission air intake passage, and to extend rearward and inward in the vehicle width direction from the front side of the transmission air intake passage so as to cover an inner side of the transmission air intake passage.

2. The straddle-type vehicle as claimed claim 1, wherein the forward cover is arranged to cover an air intake port of the transmission air intake passage.

3. The straddle-type vehicle as claimed claim 2, wherein an opening of the air intake port of the transmission air intake passage is slanted downward.

4. The straddle-type vehicle as claimed claim 2, wherein an opening of the air intake port of the transmission air intake passage faces forward, and the forward cover is arranged to cover a front of the air intake port of the transmission air intake passage.

5. The straddle-type vehicle as claimed claim 1, wherein the transmission air intake passage includes a transmission air cleaner arranged to clean air flowing through the transmission air intake passage.

6. The straddle-type vehicle as claimed claim 5, wherein the rearward cover extends in the vehicle width direction to cover a rear side of the transmission air cleaner.

7. The straddle-type vehicle as claimed claim 1, further comprising:

an engine air cleaner arranged to clean air to be sent to an engine;

wherein

an air intake port of the engine air cleaner is positioned inside of the transmission air intake passage in the vehicle width direction; and

the forward cover includes a wind direction guide arranged to extend between the transmission air intake passage and the engine air cleaner from the front side of the transmission air intake passage.

8. The straddle-type vehicle as claimed claim 1, further comprising:

an engine air cleaner arranged to clean air to be sent to an engine;

wherein

the engine air cleaner is arranged inside of the transmission air intake passage in the vehicle width direction; and

the transmission air intake passage is supported by the engine air cleaner.

9. The straddle-type vehicle as claimed claim 8, wherein the transmission air intake passage includes a transmission air cleaner arranged to clean air flowing through the transmission air intake passage and is supported by the engine air cleaner.

10. The straddle-type vehicle as claimed claim 9, wherein the transmission air intake passage includes a duct fixed to an intake port of the transmission air cleaner, the duct arranged to transmit outside air at a position higher than the intake port to the transmission air cleaner.

11. The straddle-type vehicle as claimed claim 1, wherein an inner edge of the forward cover in the vehicle width direction ends at the inner side of the transmission air intake passage.