GB/T 3565.8-2022 English PDF

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GB/T 3565.8-2022: Safety requirements for bicycles - Part 8: Pedal and drive system test methods
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Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3565.8-2022	279	Add to Cart	3 days	Safety requirements for bicycles - Part 8: Pedal and drive system test methods	Valid

Similar standards

GB/T 3565.1   GB 3565.2   GB/T 3564   GB/T 3565.5   GB/T 3565.6   GB/T 3565.4   

Basic data

Standard ID: GB/T 3565.8-2022 (GB/T3565.8-2022)
Description (Translated English): Safety requirements for bicycles - Part 8: Pedal and drive system test methods
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y14
Classification of International Standard: 43.150
Word Count Estimation: 14,174
Date of Issue: 2022-12-30
Date of Implementation: 2023-10-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 3565.8-2022: Safety requirements for bicycles - Part 8: Pedal and drive system test methods

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 43.150 CCSY14 National Standards of People's Republic of China Bicycle Safety Requirements Part 8.Test methods for pedal and drive systems Posted on 2022-12-30 2023-10-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

table of contents

Preface I Introduction III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Test method 1 4.1 Pedal --- static load strength test 1 4.2 Pedal --- impact test 2 4.3 Pedal --- dynamic durability test 3 4.4 Drive system---Static load strength test 4 4.4.1 Test method for chain drive system 4 4.4.2 Test methods for belt drive systems 4 4.5 Drive belt---tensile strength test 4 4.6 Crank assembly---fatigue test 5 4.6.1 Overview 5 4.6.2 Test method 5 for the angle between the crank and the horizontal line at 45° 4.6.3 Test method 6 for mountain bikes with the crank angled at 30° to the horizontal Reference 8

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents" drafting. This document is part 8 of GB (/T) 3565 "Safety Requirements for Bicycles". And GB 3565.2 "Bicycle Safety Requirements Part 2 Subdivision. Requirements for City and Touring Bicycles, Youth Bicycles, Mountain Bicycles and Competition Bicycles" is the supporting standard. GB (/T)3565 The following parts of the Bicycle Safety Requirements have been published. --- Part 1.Terms and definitions; --- Part 2.Requirements for city and touring bicycles, youth bicycles, mountain bikes and racing bicycles; --- Part 3.General test methods; --- Part 4.Brake test method; --- Part 5.Test methods for handlebars; --- Part 6.Test methods for frame and front fork; --- Part 7.Test methods for wheels and rims; --- Part 8.Test methods for pedals and drive systems; --- Part 9.Test methods for saddles and saddle tubes. This document is modified to adopt ISO 4210-8.2014 "Safety requirements for bicycles and two-wheeled bicycles - Part 8.Pedal and drive system test Test Method". The technical differences between this document and ISO 4210-8.2014 and their reasons are as follows. --- Replaced ISO 4210-1 with the normatively quoted GB/T 3565.1 to adapt to my country's technical conditions and increase operability (see Chapter 3); --- In the "pedal static load test", the requirements for the placement of the "pressure plate", the requirements for the inspection of the folded pedals and the test of different pedal surfaces have been added Requirements; Change the static load application point "pedal center" to "press plate center"; change the test holding time "1min" to "5min" to better simulate the actual pedaling situation (see 4.1, Figure 1); --- In the "pedal impact test", the test method of self-locking pedals is added to meet different pedal tests (see 4.2); --- In the "Drive Belt Tensile Strength Test", change the belt tension "4000N" to "8000N" to match the strength of the drive chain be consistent (see 4.5); --- In the "test method for the crank at 45° to the horizontal line", the pedal shafts on the driving side and the non-driving side are alternately applied repeatedly, vertically Straight dynamic force" was changed to "Phase 1.Fatigue test on drive side crank simulated pedal shaft, Phase 2.Phase 1 After the test is completed, the crank assembly is rotated 180°, and the fatigue test is carried out on the simulated pedal shaft of the crank on the non-drive side, simulating the actual Using conditions, improve the test method to ensure that the test results are correct (see 4.6.2). The following editorial changes have been made to this document. --- Change the name of the standard to "Bicycle Safety Requirements Part 8.Test Methods for Pedals and Drive Systems" in order to be compatible with existing standards document coordination; ---Change the heavy hammer in 4.2 of ISO 4210-8.2014 "the width should be greater than the width of the pedal foot" to "the length should be greater than the width of the pedal foot Stepping on the width of the surface", correct the original text error. Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China National Light Industry Council. This document is under the jurisdiction of the National Bicycle Standardization Technical Committee (SAC/TC155). This document is drafted by. Ningbo Julong Machinery Co., Ltd., Shanghai Xiedian Technology Service Co., Ltd., Hangzhou Yonghua Vehicle Industry Co., Ltd. Division, Lanxi Lunfeng Vehicle Materials Co., Ltd., Shanghai Phoenix Bicycle Co., Ltd., Giant (China) Co., Ltd., Shenzhen Meidahang Technology Co., Ltd. Company, Dima (Shanghai) Enterprise Management Co., Ltd., Tianneng Battery Group Co., Ltd., Kunshan Customs Comprehensive Technical Service Center, Tianjin Products Bicycle Research Center of Quality Supervision and Testing Technology Research Institute, Wuxi Inspection, Testing and Certification Research Institute, Taizhou Product Quality and Safety Testing Research Institute, Intertek (Tianjin) Quality Technology Service Co., Ltd. The main drafters of this document. Xu Liyong, Song Fang, Jia Gang, Zhu Hao, Chen Jun, Liu Bing, Chen Pingwei, Dai Fei, Ye Zhentao, Xiong Xuesong, Wu Yongbin, Chen Xuefu, Ruan Li, Shi Xin.

Introduction

GB (/T) 3565 "Safety Requirements for Bicycles" was drafted according to the safety requirements of bicycle products. To produce bicycles that are as safe as possible. GB (/T) 3565 "Bicycle Safety Requirements" consists of 9 parts. --- Part 1.Terms and definitions. The purpose is to unify the terminology used in each part of the standard. --- Part 2.Requirements for city and touring bicycles, youth bicycles, mountain bikes and racing bicycles. purpose is Classify the safety requirements of Category 4 bicycles into mandatory national standards for easy enforcement. --- Part 3.General test methods. The purpose is to centralize and unify the general test methods for bicycle safety requirements and facilitate operation. --- Part 4.Brake test method. The purpose is to carry out professional tests on the brake requirements in the bicycle safety requirements, and provide a basis for the brake test Opportunities for method improvement. --- Part 5.Test methods for handlebars. The purpose is to carry out professional tests on the handlebar requirements in the bicycle safety requirements, and to provide a basis for the handlebar test Opportunities for method improvement. --- Part 6.Test methods for frame and fork. The purpose is to conduct a professional review of the requirements for frame and front fork in bicycle safety requirements. Test and provide opportunities for improved test methods for frames and forks. --- Part 7.Test methods for wheels and rims. The purpose is to conduct a professional review of the requirements for wheels and rims in bicycle safety requirements Test and provide opportunities for improvement of test methods for wheels and rims. --- Part 8.Test methods for pedals and drive systems. The purpose is to meet the requirements for pedals and drive systems in bicycle safety requirements Conduct specialized tests and provide opportunities for improved test methods for pedal and drive systems. --- Part 9.Test methods for saddles and saddle tubes. The purpose is to conduct a professional review of the requirements for saddles and saddle tubes in bicycle safety requirements Test, and provide opportunities for the improvement of test methods for saddles and saddle tubes. GB 3565.2 is a mandatory national standard, and 7 test method standards (GB/T 3565.3~GB/T 3565.9) are recommended national standards Standard, used in conjunction with GB 3565.2.These test method standards are designed to ensure the strength and reliability of individual components as well as the complete bicycle It meets the requirements and requires consideration of safety issues from the design stage. The scope of GB (/T) 3565 is limited to product safety considerations. If bicycles are used on public roads, national road traffic regulations must be followed. Communication safety laws and related management regulations. To improve repeatability and reproducibility, and to take into account suitability, size and operator effects for all types of bicycles, the test The machine test method reflects the current advanced level and is more popular than the road test method. The safety and quality of bicycles is related to the traffic life safety of consumers. Since 1983, my country has released three versions of GB 3565.It has been 17 years since GB 3565-2005 was issued and implemented. Provided technical support. GB 3565-2005 "Safety Requirements for Bicycles" is equivalent to ISO 4210.1996 "Safety Requirements for Two-wheeled Bicycles" Require". In.2014, ISO 4210 was revised and released again, from the original 1 standard to 9 standards. For this reason, GB 3565 also changed from the original 1 One standard was revised into nine standards, and the standard level was synchronized with the international standard, and continued to provide technical support for the safety of bicycle products in my country. Bicycle Safety Requirements Part 8.Test methods for pedal and drive systems

1 Scope

This document describes the static load strength, impact and dynamic durability of bicycle pedals and the static load strength and tensile strength of the drive system and test methods for fatigue tests. This document is applicable to the test of pedals and drive system components of bicycle types involved in GB 3565.2.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 3565.1 Bicycle Safety Requirements Part 1.Terms and Definitions (GB/T 3565.1-2022, ISO 4210-1. 2014, MOD) GB/T 3565.3-2022 Bicycle Safety Requirements Part 3.General Test Methods (ISO 4210-3.2014, IDT) GB/T 4208-2017 Enclosure protection level (IP code) (IEC 60529.2013, IDT)

3 Terms and Definitions

The terms and definitions defined in GB/T 3565.1 apply to this document.

4 Test method

4.1 Pedal --- static load strength test As shown in Figure 1, the pedal shaft is screwed on a rigid support in a horizontal position, and the pedal surface is 40mm away from the end of the pedal. Place a platen at the center of the platen, apply a vertical downward force of 1500N at the center of the platen, and keep it for 5min. If the pedal width is less than 75mm, the outside of both sides of the pressure plate should be flush with the outside of the pedal width direction. After removing this force, check the pedal parts and the pedal shaft, if any If the pedals are folded, check their folding positioning function. If the pedal has two different tread surfaces, the two tread surfaces are tested separately; if the pedal has only one tread surface, the test is carried out only on the pedal face to test. ......

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