Leaning vehicle

Patent metadata

Field	Value
Publication number	US-10894571-B2
Application number	US-201815976998-A
Country	US
Kind code	B2
Filing date	May 11, 2018
Priority date	Nov 13, 2015
Publication date	Jan 19, 2021
Grant date	Jan 19, 2021

Abstract

A leaning vehicle includes a vehicle body, a left wheel, a right wheel, a leaning mechanism, a leaning drive mechanism and a leaning brake mechanism. The leaning drive mechanism includes a drive source. The leaning drive mechanism includes a gear, rotary shafts, and a gear casing member. The leaning brake mechanism includes a brake member and a resistance applying member. The gear and the rotary shaft of the leaning drive mechanism and the brake member of the leaning brake mechanism are supported by the vehicle body in a rotatable manner by way of the gear casing member of the leaning drive mechanism.

First claim

The invention claimed is:

1. A leaning vehicle comprising:
a vehicle body which leans left with turning of the leaning vehicle leftward in a left-right direction of the leaning vehicle, and leans right with turning of the leaning vehicle rightward in the left-right direction of the leaning vehicle;
a left wheel disposed at a left side of a center of the vehicle body in the left-right direction of the vehicle body;
a right wheel disposed at a right side of the center of the vehicle body in the left-right direction of the vehicle body, and at a right side of the left wheel;
a leaning mechanism including a support arm for each of the left wheel and the right wheel to support the left wheel and the right wheel, the support arm being supported by the vehicle body in a rotatable manner about a rotation axis extending in a front-back direction of the vehicle body and the support arm being configured to lean the vehicle body, the left wheel and the right wheel in a same direction;
a leaning drive mechanism including a drive source for generating a driving force which causes the support arm to rotate with respect to the vehicle body, the leaning drive mechanism being supported by the vehicle body; and
a leaning brake mechanism applying a resistance to a rotation of the support arm with respect to the vehicle body, wherein
the leaning drive mechanism includes a gear and a rotary shaft connected to the drive source and the support arm, and rotating in an interlocking manner with the support arm, and a gear casing member accommodating at least a portion of the gear and a portion of the rotary shaft, and the leaning drive mechanism transmits the driving force generated by the drive source to the support arm through the gear and the rotary shaft,
the leaning brake mechanism includes: a brake member which is directly connected to one of the gear or the rotary shaft, and rotates in an interlocking manner with the support arm by way of the gear or the rotary shaft to which the brake member is directly connected; and a resistance applying member which applies a resistance to a motion of the brake member with respect to the vehicle body, and
the gear and the rotary shaft of the leaning drive mechanism and the brake member of the leaning brake mechanism are rotatable with respect to the gear casing member of the leaning drive mechanism, and are supported by the vehicle body in a rotatable manner by way of the gear casing member of the leaning drive mechanism.

2. The leaning vehicle according to claim 1 , wherein
the gear casing member of the leaning drive mechanism includes a front casing piece and a rear casing piece arranged in the front-back direction of the vehicle body.

3. The leaning vehicle according to claim 1 , wherein
axes of rotation of the gear and the rotary shaft of the leaning drive mechanism and an axis of rotation of the brake member of the leaning brake mechanism are set so as to extend along the front-back direction of the vehicle body.

4. The leaning vehicle according to claim 1 , wherein
the gear casing member of the leaning drive mechanism includes a plurality of casing pieces,
one of the plurality of casing pieces is supported by the vehicle body, and another of the plurality of casing pieces is supported by the vehicle body by way of said one of the plurality of casing pieces.

5. The leaning vehicle according to claim 1 , wherein
the gear of the leaning drive mechanism includes a plurality of gears, decelerates the driving force generated by the drive source, and transmits the driving force to the support arm, and
the brake member of the leaning brake mechanism is connected to the gear or the rotary shaft of the leaning drive mechanism which rotates at a reduced rotational speed.

6. The leaning vehicle according to claim 1 , wherein
an upper end of the brake member is disposed at a position lower than an upper end of the gear casing member in an up-down direction of the vehicle body, and
a lower end of the brake member is disposed at a position higher than a lower end of the gear casing member in the up-down direction of the vehicle body.

7. The leaning vehicle according to claim 1 , wherein
at least one of a front end or a rear end of the brake member is positioned between a front end and a rear end of the gear casing member in the front-back direction of the vehicle body.

8. The leaning vehicle according to claim 1 , wherein
the leaning drive mechanism includes an output shaft which outputs the driving force of the drive source, and is connected to the support arm, and
the resistance applying member of the leaning brake mechanism applies a resistance to the brake member at a position higher than the output shaft in the up-down direction of the vehicle body.

9. The leaning vehicle according to claim 1 , wherein
at least one of a left end or a right end of the brake member is positioned between a left end and a right end of the gear casing member in the left-right direction of the vehicle body.

10. The leaning vehicle according to claim 1 , wherein:
the brake member is a brake disc; and
the leaning drive mechanism is integrated with the brake member and is attachable to and detachable from the vehicle body and the leaning mechanism along with the brake member.

11. The leaning vehicle according to claim 1 , wherein:
the leaning drive mechanism includes an output shaft for outputting the driving force generated by the drive source, the output shaft being connected to the support arm; and
the brake member is connected to one of the gear and the rotary shaft through which the driving force generated by the drive source is transmitted to the support arm, the one of the gear or the rotary shaft to which the brake member is connected being different from the output shaft.

Assignees

• Yamaha Motor Co Ltd

Inventors

• Kanehara Shuhei
• Fukuhara Yukihide
• Hara Nobuo
• Toyota Takeshi

Classifications

• B62K5/10 Primary

  with means for inwardly inclining the vehicle body on bends · CPC title

• F16H21/44

  for conveying or interconverting oscillating or reciprocating motions · CPC title

• B60G21/05

  between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected · CPC title

• F16D55/28

  Brakes with only one rotating disc · CPC title

• B62K5/027

  Motorcycles with three wheels (specially adapted for disabled riders B62K5/023) · CPC title