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研究生:吳瓊倫
研究生(外文):Chiung-Lun Wu
論文名稱:自行車安全煞車器分析研究
論文名稱(外文):A Study for Safety Brake System on Bicycles
指導教授:曾錦煥曾錦煥引用關係
指導教授(外文):Ching-Huan Tseng
學位類別:碩士
校院名稱:國立交通大學
系所名稱:機械工程系
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:英文
論文頁數:80
中文關鍵詞:自行車煞車把手同動
外文關鍵詞:BicycleBrake LeverSimultaneous
相關次數:
  • 被引用被引用:5
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自行車煞車器系統主要係由煞車操作把手(Brake Lever)及制動裝置(Brake unit)所組成,並藉由煞車鋼索作為此二裝置之介面,就系統需求的觀點,煞車把手與制動裝置之機構設計必需相互匹配,才能確時達到高安全性及較佳操控性之要求。
就自行車煞車把手之設計而言,在騎乘遇到狀況時,只作動前煞或後煞,均會對騎乘者的安全性產生影響,但是利用煞車為前、後煞同動及適當的匹配時,自行車不會因此而失控,是提高騎乘者的安全的一種方法;因此,對煞車把手之機構特性作一完整分析,將可有效的提昇煞車之系統性能。
本研究主要是針對自行車之煞車操作把手進行機構之分析,進行自行車安全剎車器致動機構特性之分析研究;藉由專利機構之分析,期達成兼具較佳之機械利益與行程效率之操作系統,瞭解各機構之特性與使用之限制。

The brake system of a bicycle composes of brake levers, braking units and cable casing that used for an inter-medium. On the viewpoint of brake system design, to improve the compatibility of brake lever and braking unit will enhance the performance of safety and controllability on the bicycle.
In convenience, when some conditions happen to the riders, it will effect safety to the riders, if they only action the front or rear brake. However, when front and rear brakes match each other or simultaneously, the brake bicycle will not be out of control, and it will improve riding safety. Therefore, it is a major problem that design should improve the performance of the braking system.
In this field, engineering design will be proposed. The engineering design procedure is based on patents search and analysis, which will accomplish both better mechanical advantage and operating system of stroke efficiency. However, the main purpose of the project is to understand each mechanical characteristic and constraint.

ABSRACT (IN CHINESE) I
ABSRACT (IN ENGLISH) II
ACKNOWLEGEMENTS III
TABLE OF CONTENTS IV
LIST OF TABLES VII
LIST OF FIGURES VIII
NOTATIONS IX
CHAPTER 1 INTRODUCTION 1
CHAPTER 2 MECHANICAL DESIGN PROCESS 6
2.1 Specification Development/Planning 6
2.2 Conceptual Design 7
2.3 Product Design 8
2.4 Production 9
CHAPTER 3 QUALITY FUNCTION DEPLOYMENT 11
3.1 Understanding the Design Problem 12
3.1.1 Description of the Design Problem 13
3.1.2 Identifying the Customer(s) 14
3.1.3 Developing Customer Requirement 14
3.1.4 Determine Relative Importance of the Requirements 15
3.1.5 Competition Benchmarking 16
3.1.6 Generating Engineering Requirements 16
3.1.7 Establishing Engineering Targets 17
3.2 Planning for Design 18
3.3 Decomposing the Design Problem into Subproblems 18
CHAPTER 4 BRAKING 23
4.1 Brake Types of Bicycle 23
4.1.1 Plunger Brake 23
4.1.2 Internal-expanding Hub Brake 23
4.1.3 Backpedaling or “Coaster” Hub Brake 24
4.1.4 Disk Brake 24
4.1.5 Rim Brake 24
4.2 Friction between Tire and Road 24
4.3 Rear-wheel-only Braking 25
4.4 A Braking System with Negative Feedback 25
CHAPTER 5 PATENT SEARCH 29
5.1 Patent Search and Analyze 29
5.1.1 Table of Searching History 30
5.1.2 Patent Analyze 30
5.2 Conceptual Generation 31
CHAPTER 6 NUMERICAL ANALYSIS 35
6.1 Brake Theory and Performance 35
6.2 Efficiency of Brake Performance 36
6.3 Changes of Normal Force and Brake Force for Front and Rear Wheel 36
6.4 Ideal Brake Curve 38
6.5 Model Establish and Analysis 38
6.5.1 Parameters Establish and Program Process 38
6.5.2 Numerical Results 39
6.6 Conceptual Design 40
6.6.1 Conceptual Description 40
6.6.2 New Concept 41
6.7 Conceptual Evaluation 42
6.8 Advantages of Concepts 42
CHAPTER 7 CONCLUSIONS AND FURTHER WORKS 53
REFERENCES 55
APPENDIX PATENT ANALYSES 57

[1] D. G. Ullman, The Mechanical Design Process, McGraw-Hill, 1992.
[2] Y. Akao, QFD: Past, present, and Future, International Symposium on QFD, 1997.
[3] 黎文龍,工程設計與分析:創思設計分析與模擬,初版,台北,東華書局股份有限公司,民國八十九年三月。
[4] L. R. Guinta and N. C. Praizler, The QFD book, 1993.
[5] F. R. Whitt and D. G. Wilson, Bicycling Science, 1990.
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