Patents by Inventor Haruhito KURAKAKE
Haruhito KURAKAKE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11827304Abstract: A leaning vehicle having a linkage mechanism supported by a linkage support part. The linkage mechanism includes left and right side members and a lower cross member. The lower cross member has a front cross part, a rear cross part, a coupling part coupling the front and rear cross parts, and a foreign-matter-entering-suppression part. The left and right side members are respectively rotatable about left and right axes extending in a front-rear direction of a vehicle body frame. The front and rear cross parts are rotatable about an intermediate axis parallel to the left and right axes. The foreign-matter-entering-suppression part fills a gap between the linkage support part, or the left or right side member, and the coupling part. The coupling part has a recess configured to accommodate the foreign-matter-entering-suppression part when the front and rear cross parts rotate with respect to the linkage support part.Type: GrantFiled: May 28, 2021Date of Patent: November 28, 2023Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Haruhito Kurakake, Takayuki Sano
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Patent number: 11820459Abstract: A leaning vehicle including a braking mechanism, a linkage mechanism configured to cause a body frame of the leaning vehicle to lean leftward or rightward, a lean lock mechanism configured to restrict leftward leaning and rightward leaning of the vehicle body frame, and an interlocking mechanism configured to actuate the braking mechanism and the lean lock mechanism. The interlocking mechanism includes an operation input section configured to input a first operating force, a brake-operation-input section configured to input a second operating force, an operating force distributor configured to distribute the first operating force input by the operation input section to the lean lock mechanism and the braking mechanism, and a brake actuator configured to actuate the braking mechanism by the first operating force distributed to the braking mechanism by the operating force distributor, or by the second operating force input by the brake-operation-input section.Type: GrantFiled: May 28, 2021Date of Patent: November 21, 2023Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Haruhito Kurakake
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Patent number: 11691689Abstract: A front two-wheel leaning vehicle, including a handle, a steering shaft, a linkage mechanism and a load transfer mechanism. The load transfer mechanism includes a left-foot-placing part and a right-foot-placing part located between the left front wheel and the rear wheel, for left and right feet of the driver to be respectively placed thereon. The load transfer mechanism transfers a load to the left and right portions of the linkage mechanism through the left-foot-placing part and the right-foot-placing part, or through the right-foot-placing part and the left-foot-placing part, respectively. The steering shaft includes a handle adjusting mechanism configured to adjust, with respect to the left-foot-placing part and the right-foot-placing part, at least one of a handle height, which is a distance from a midpoint between the left and right front wheels to the grip, or an offset amount of the handle with respect to a rotation axis of the steering shaft.Type: GrantFiled: May 28, 2021Date of Patent: July 4, 2023Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Haruhito Kurakake
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Patent number: 11661133Abstract: A front two-wheel leaning vehicle, including a handle, a steering shaft, a linkage mechanism and a load transfer mechanism. The load transfer mechanism includes a left-foot-placing part and a right-foot-placing part located between the left front wheel and the rear wheel, for left and right feet of the driver to be respectively placed thereon. The load transfer mechanism transfers a load to the left and right portions of the linkage mechanism through the left-foot-placing part and the right-foot-placing part, or through the right-foot-placing part and the left-foot-placing part, respectively. The steering shaft includes a handle adjusting mechanism configured to adjust, with respect to the left-foot-placing part and the right-foot-placing part, at least one of a handle height, which is a distance from a midpoint between the left and right front wheels to the grip, or an offset amount of the handle with respect to a rotation axis of the steering shaft.Type: GrantFiled: May 28, 2021Date of Patent: May 30, 2023Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Haruhito Kurakake
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Publication number: 20220119069Abstract: A leaning vehicle including a body frame; a linkage mechanism supported by the body frame and including a left side part and a right side part; and two front wheels, two foot steps, two foot-step-coupling part and two front guards, respectively at left and right sides of the vehicle. On each of the left and right sides, the front guard is supported by the foot-step-coupling part between the foot step and the front wheel, such that while the leaning vehicle leans, a positional relationship of the front guard changes with respect to the body frame but does not change with respect to the left/right side part and the foot step in a top-bottom direction, and while the front wheel rotates, the front guard does not rotate with the front wheel, and the positional relationship of the front guard to the left/right side part and the foot step remains without change.Type: ApplicationFiled: December 31, 2021Publication date: April 21, 2022Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Haruhito KURAKAKE, Katsuhiro UCHIYAMA
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Publication number: 20220119062Abstract: A leaning vehicle including left and right foot steps, a rear fender and a rear device. In the front-rear direction of the leaning vehicle, a distance from a rear end of the left or right foot step to a front end of the rear device is greater than a half of a length of the left or right foot step, as the case may be. In the top-bottom direction of the leaning vehicle, a distance between an upper end of the rear device and a left-foot-placing face of the left foot step or a right-foot-placing-face of the right foot step is less than a distance between the left-foot-placing face of the left foot step or the right-foot-placing-face of the right foot step, as the case may be, and a ground surface. In the left-right direction of the leaning vehicle, the rear device is located between centers of the left and right foot steps in a rear view.Type: ApplicationFiled: December 31, 2021Publication date: April 21, 2022Inventors: Haruhito KURAKAKE, Katsuhiro UCHIYAMA
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Publication number: 20210284272Abstract: A leaning vehicle including a braking mechanism, a linkage mechanism configured to cause a body frame of the leaning vehicle to lean leftward or rightward, a lean lock mechanism configured to restrict leftward leaning and rightward leaning of the vehicle body frame, and an interlocking mechanism configured to actuate the braking mechanism and the lean lock mechanism. The interlocking mechanism includes an operation input section configured to input a first operating force, a brake-operation-input section configured to input a second operating force, an operating force distributor configured to distribute the first operating force input by the operation input section to the lean lock mechanism and the braking mechanism, and a brake actuator configured to actuate the braking mechanism by the first operating force distributed to the braking mechanism by the operating force distributor, or by the second operating force input by the brake-operation-input section.Type: ApplicationFiled: May 28, 2021Publication date: September 16, 2021Inventor: Haruhito KURAKAKE
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Publication number: 20210284270Abstract: A leaning vehicle having a linkage mechanism supported by a linkage support part. The linkage mechanism includes left and right side members and a lower cross member. The lower cross member has a front cross part, a rear cross part, a coupling part coupling the front and rear cross parts, and a foreign-matter-entering-suppression part. The left and right side members are respectively rotatable about left and right axes extending in a front-rear direction of a vehicle body frame. The front and rear cross parts are rotatable about an intermediate axis parallel to the left and right axes. The foreign-matter-entering-suppression part fills a gap between the linkage support part, or the left or right side member, and the coupling part. The coupling part has a recess configured to accommodate the foreign-matter-entering-suppression part when the front and rear cross parts rotate with respect to the linkage support part.Type: ApplicationFiled: May 28, 2021Publication date: September 16, 2021Inventors: Haruhito KURAKAKE, Takayuki SANO
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Publication number: 20210284271Abstract: A front two-wheel leaning vehicle, including a handle, a steering shaft, a linkage mechanism and a load transfer mechanism. The load transfer mechanism includes a left-foot-placing part and a right-foot-placing part located between the left front wheel and the rear wheel, for left and right feet of the driver to be respectively placed thereon. The load transfer mechanism transfers a load to the left and right portions of the linkage mechanism through the left-foot-placing part and the right-foot-placing part, or through the right-foot-placing part and the left-foot-placing part, respectively. The steering shaft includes a handle adjusting mechanism configured to adjust, with respect to the left-foot-placing part and the right-foot-placing part, at least one of a handle height, which is a distance from a midpoint between the left and right front wheels to the grip, or an offset amount of the handle with respect to a rotation axis of the steering shaft.Type: ApplicationFiled: May 28, 2021Publication date: September 16, 2021Inventor: Haruhito KURAKAKE