Straddle type vehicle

• US 7,637,342 B2
• Filed: 10/08/2008
• Issued: 12/29/2009
• Est. Priority Date: 10/10/2007
• Status: Expired due to Fees

• Current Assignee: Yamaha Hatsudoki Kabushiki Kaisha (Yamaha Corporation)
• Original Assignee: Yamaha Hatsudoki Kabushiki Kaisha (Yamaha Corporation)
• Inventors: Iwanaga, Sadamu, Shinsho, Masami
• Primary Examiner(s): Morris; Lesley D
• Assistant Examiner(s): Adams; Tashiana
• Application Number:
  US12/247,874
• Publication Number:
  US 20090095553A1
• Time in Patent Office: 447 Days
• Field of Search: 180/229, 180/68.4, 180/219, 248/205.1
• US Class Current: 180/229
• CPC Class Codes: B60K 11/04 Arrangement or mounting of radiators, radiator shutters, or radiator blinds B60K11/085 takes precedence
• CPC Class Codes: B60Y 2200/12 Motorcycles, Trikes; Quads; Scooters
• CPC Class Codes: B62K 11/04 characterised by the engine being between front and rear wheels
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Abstract

A straddle-type vehicle with a radiator having heightened support stiffness. An engine bracket extends vertically and has an upper portion mounted to a front end of a body frame and a lower portion suspending a front wall of an engine. The radiator includes an upper radiator arranged along a front surface of and mounted to the engine bracket, and a lower radiator.

Claims

1. A straddle-type vehicle comprising:

a body frame;

an engine mounted to the body frame through an engine bracket; and

a radiator device arranged forwardly of the engine, wherein

a mount surface inclined rearward and downward is formed on a lower surface of a front portion of the body frame,

the engine bracket extends vertically to have an upper portion thereof mounted to the mount surface of the body frame and to have a lower portion thereof mounted to a front wall of the engine, and

the radiator device is arranged forwardly of and mounted directly to the engine bracket.

2. The straddle-type vehicle according to claim 1, wherein

a head pipe is arranged on a front portion of the body frame and supports a steering shaft, and

the mount surface is substantially flush with a lower end surface of the head pipe.

3. The straddle-type vehicle according to claim 1, wherein the radiator device is arranged along a front surface of the engine bracket.

4. The straddle-type vehicle according to claim 1, wherein the engine bracket is mounted to the body frame and the engine by a clamp member inserted from the front of the vehicle.

5. The straddle-type vehicle according to claim 4, wherein

a head pipe is arranged on a front portion of the body frame and supports a steering shaft, and

the clamp member mounts an upper portion of the engine bracket to the mount surface and is directed substantially in parallel to the steering shaft.

6. The straddle-type vehicle according to claim 1, wherein

the engine bracket includes a first bracket portion positioned on one side in a vehicle width direction and a second bracket portion positioned on an opposite side, and

the first and second bracket portions are made integral.

7. The straddle-type vehicle according to claim 6, wherein

the engine bracket comprises a plate-shaped member having an opening, and

a left edge of the opening defines the first bracket portion and a right edge of the opening defines the second bracket portion.

8. The straddle-type vehicle according to claim 7, wherein

the engine includes a front wall portion of a chain chamber that projects forward, and

a front wall portion of the engine is positioned in the opening and overlaps the engine bracket as viewed from laterally of the vehicle.

9. The straddle-type vehicle according to claim 1, wherein the radiator device includes an upper radiator and a lower radiator.

10. The straddle-type vehicle according to claim 9, wherein

the upper radiator is mounted to the engine bracket, and

the lower radiator is mounted to the engine bracket and the engine.

11. The straddle-type vehicle according to claim 10, wherein

the upper radiator and the lower radiator are connected to each other by a connection member, and

the connection member is mounted to the engine bracket.