Motorcycle
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsHideaki Kawai, Shigeyuki Iwata
Life of this patent
Estimating the term…
Abstract
A motorcycle comprises a rear wheel; a vehicle body frame including a front frame unit supporting a motor, and a rear frame unit supporting a seat; and a swing arm which is rotatably connected to the front frame unit and supports the rear wheel, wherein the rear frame unit includes: a front section which supports the seat and extends rearward from the front frame unit; a pair of right and left branch sections extending rearward from a rear end portion of the front section to be spaced apart from each other in a rightward and leftward direction; and a pair of rear sections which extend rearward from rear end portions of the pair of right and left branch sections, respectively, and are placed rightward and leftward relative to the rear wheel.
Claims15
A motorcycle comprising:
- a rear wheel;
- a motor which generates driving power for driving the rear wheel;
- a seat on which a rider is seated;
- a vehicle body frame including a front frame unit supporting the motor, and a rear frame unit supporting the seat;
- and
- a swing arm which is rotatably connected to the front frame unit and supports the rear wheel in a state in which the swing arm is vertically pivotable around a pivot shaft at which the swing arm is connected to the front frame unit,
- wherein the rear frame unit includes:
- a front section which supports the seat and extends rearward from the front frame unit and is located rearward relative to the pivot shaft;
- a pair of right and left branch sections extending rearward from a rear end portion of the front section to be spaced apart from each other in a rightward and leftward direction;
- and
- a pair of rear sections which extend rearward from rear end portions of the pair of right and left branch sections, respectively, and are placed rightward and leftward relative to the rear wheel, and
- wherein a lower end of the rear end portion of the front section is located below and in front of an upper end of the rear wheel in a state in which the swing arm is pivoted upward and becomes closest to the rear frame unit.
A motorcycle comprising:
- a rear wheel;
- a motor which generates driving power for driving the rear wheel;
- a seat on which a rider is seated;
- a vehicle body frame including a front frame unit supporting the motor, and a rear frame unit supporting the seat;
- and
- a swing arm which is rotatably connected to the front frame unit and supports the rear wheel in a state in which the swing arm is vertically pivotable around a pivot shaft at which the swing arm is connected to the front frame unit,
- wherein the rear frame unit includes:
- a front section which supports the seat and extends rearward from the front frame unit;
- a pair of right and left branch sections extending rearward from a rear end portion of the front section to be spaced apart from each other in a rightward and leftward direction;
- and
- a pair of rear sections which extend rearward from rear end portions of the pair of right and left branch sections, respectively, and are placed rightward and leftward relative to the rear wheel,
- wherein the rear sections have a dimension in the rightward and leftward direction that is smaller than a dimension of the branch sections in the rightward and leftward direction,
- wherein each of the branch sections includes a pair of right and left members which are joined to each other by welding and has a closed cross-section in a direction perpendicular to a lengthwise direction of the branch section, and
- wherein each of the rear sections includes a pair of right and left members which are joined to each other by welding and has a closed cross-section in a direction perpendicular to a lengthwise direction of the rear section.
Dependencies are inferred from the claim text.