# US 7,607,504 B2 · Motorcycle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,607,504 B2 - Document ID: US7607504B2 - Status: Granted - Kind: B2 - Application number: 11/767,304 - Filed: 2007-06-22 - Published: 2008-01-10 - Granted: 2009-10-27 - Earliest claimed: 2006-06-23 - Assignees: Yamaha Hatsudoki Kabushiki Kaisha - Inventors: Shigeto Yamasaki - Web page: https://patentgrep.com/patent/US7607504B2 ## CPC - B62K 11/04: characterised by the engine being between front and rear wheels - B62K: CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE ## Abstract A motorcycle that has improved maneuverability and stability at high speed while retaining the external features of an American cruiser motorcycle. A front upper surface of a seat is formed in generally a straight line LU and inclines upward as the front upper surface extends toward the front. A fuel tank is formed such that the straight line LU generally extends to the front along a top surface of the fuel tank. A bottom end section is formed to incline upward as it extends toward the rear. ## Claims ### Claim 1 A motorcycle comprising: a headpipe; a steering post extending upward from the headpipe; a handlebar extending from the steering post; a down tube that extends downward and rearward from the head pipe; a bottom frame that extends rearward from the down tube; an engine disposed rearward from the down tube and above the bottom frame; a fuel tank disposed above the engine; a seat disposed rearward from the fuel tank; and a rear wheel, wherein when viewed from a side of the motorcycle, a front upper surface of the seat is formed generally as a straight line LU that inclines upward as the front upper surface extends toward a front of the motorcycle, the fuel tank is formed such that the straight line LU generally extends toward the front along a top surface of the fuel tank, the straight line LU extends above and axle of the rear wheel and below the handlebar, and a rear section of the bottom frame is formed to incline upward as the rear section of the bottom frame extends toward a rear of the motorcycle. ### Claim 2 (depends on 1) The motorcycle according to claim 1, wherein an extending straight line LL2 that extends to the rear in line with the rear section of the bottom frame intersects with the extending straight line LU at a point P2 rearward of the axle of the rear wheel. ### Claim 3 (depends on 2) The motorcycle according to claim 2, wherein an extending straight line LL1 that runs along a main section of the bottom frame intersects with extending straight line LU at a point P1 that is rearward of point P2. ### Claim 4 (depends on 1) The motorcycle according to claim 1, further comprising: a rear fender that covers above the rear wheel, wherein a height of a front end section of the seat from a road surface, and a height of an upper end section of the rear fender from the road surface are generally the same. ### Claim 5 (depends on 1) The motorcycle according to claim 1, further comprising: an endless transmission belt that transmits driving force of the engine to the rear wheel, wherein a lower end section of the endless transmission belt that is located to the front of the rear wheel is further away from the road surface than the bottom frame. ### Claim 6 (depends on 4) The motorcycle according to claim 4, further comprising: a sub-assembled and integrated tail unit comprising flashers, side reflectors, a rear reflector and a license lamp, the tail unit being attached to the rear fender. ### Claim 7 (depends on 6) The motorcycle according to claim 6, wherein each flasher comprises: a lens having small cut sections in rows extending in a vehicle width direction and large cut sections in rows that are above and below the small cut sections. ### Claim 8 A motorcycle comprising: a headpipe; a down tube that extends downward and rearward from the head pipe; a bottom frame that extends rearward from the down tube; an engine disposed rearward from the down tube and above the bottom frame; a fuel tank disposed above the engine; a seat disposed rearward from the fuel tank; a rear wheel a side stand; and a stand bracket that turnably supports the side stand and attaches the side stand to the bottom frame, wherein a notch is formed in the stand bracket to permit tool access, and wherein when viewed from a side of the motorcycle, a front upper surface of the seat is formed generally as a straight line LU that inclines upward as the front upper surface extends toward a front of the motorcycle, the fuel tank is formed such that the straight line LU generally extends toward the front along a top surface of the fuel tank, and a rear section of the bottom frame is formed to incline upward as the rear section of the bottom frame extends toward a rear of the motorcycle. ### Claim 9 (depends on 8) The motorcycle according to claim 8, wherein the notch permits access by a spanner tool to an adjustment nut for adjusting a distance between a shift change pedal and a shift shaft. ### Claim 10 A motorcycle comprising: a bottom frame; a rear wheel; a fuel tank disposed above the bottom frame; and a seat disposed rearward from the fuel tank, wherein a straight line LU extends along a front upper surface of the seat and inclines upward as the front upper surface of the seat extends toward the fuel tank, wherein a straight line LL1 extends along a front section of the bottom frame, wherein a straight line LL2 extends along a rear section of the bottom frame and inclines upward as the rear section of the bottom frame extends towards the rear, wherein the lines LU and LL1 intersect at a point P1, and the lines LU and LL2 intersect at a point P2, and wherein the point P2 is forward of the point P1 and rearward of an axle of the rear wheel. ### Claim 11 (depends on 10) The motorcycle according to claim 10, and further comprising: a rear fender, wherein a front end section of the seat is positioned at approximately a same height as an upper end section of the rear fender. ### Claim 12 (depends on 10) The motorcycle according to claim 10, and further comprising: a transmission belt, wherein a lower end of the transmission belt is higher than the bottom frame.