Unlock instant, AI-driven research and patent intelligence for your innovation.

Clutch operation assisting device, power unit for vehicle and straddle type vehicle including the same

An auxiliary device and power unit technology, applied in the field of straddle vehicles, can solve the problems of increasing the burden of operating the clutch lever, and achieve the effect of reducing the size

Inactive Publication Date: 2010-12-22
YAMAHA MOTOR CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the mounting load of the clutch spring is set high, it will increase the burden of operating the clutch lever

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Clutch operation assisting device, power unit for vehicle and straddle type vehicle including the same
  • Clutch operation assisting device, power unit for vehicle and straddle type vehicle including the same
  • Clutch operation assisting device, power unit for vehicle and straddle type vehicle including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] figure 1 The motorcycle 1 shown includes a frame 2 . The frame 2 includes a steering head pipe 3 , a main frame member 4 , and a down tube 5 . The steering head pipe 3 supports the front fork 6 . A steering handle 8 for turning the front wheels 7 is fixed on the upper end of the front fork 6 . A clutch lever 9 as an example of an operating element is attached to the left end portion of the steering handle 8 .

[0030] The main frame member 4 extends rearward from the steering head pipe 3 and supports a fuel tank 10 and a seat 11 . The down tube 5 includes: a first portion 5a extending downward from the front end of the main frame member 4; and a second portion 5b extending rearward from the lower end of the first portion 5a.

[0031] The power unit 13 is supported by the frame 2 . The power unit 13 has a crankcase 14 and a cylinde...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A downsized power unit equipped with a clutch operation-assisting device that reduces operation force of a clutch lever. The clutch operation-assisting device includes a push shaft and a first rotation plate that is rotatably supported by a support plate and connected to a clutch wire, and slides the push shaft by rotation. The first rotation plate and a second rotation plate are connected by gear. The second rotation plate is rotatably supported by a bearing member fixed to the support plate. A spring unit that provides assisting force in a direction to disengage a friction clutch is connected to the second rotation plate by pin. The spring unit, as seen from a shaft direction of the push shaft, is disposed so that an extension direction of an auxiliary spring does not pass through a rotation center of a pressure plate.

Description

technical field [0001] The present invention relates to a clutch operation assisting device that reduces an operating force on a friction clutch when torque transmission is disconnected by the friction clutch, and to a power unit and a straddle-type vehicle including the power unit. Background technique [0002] As a power unit in a motorcycle, for example, a power unit having a friction clutch for engaging and disengaging torque transmission from an engine to a transmission is known. A friction clutch has a clutch shaft, and a friction plate and a clutch plate that are in contact with each other along the axial direction of the clutch shaft (hereinafter referred to as the clutch axial direction). In addition, the friction clutch has a pressure plate that engages the friction plate with the clutch plate, and a clutch spring that biases the pressure plate. Under normal conditions, the friction clutch is held in a clutch-on state allowing torque transmission by a clutch sprin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16D23/12B60K23/02
Inventor 大石明文村山拓仁
Owner YAMAHA MOTOR CO LTD