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GB/T 28269-2012: Zigzag spring for seat -- Technical specifications
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 28269-2012 | English | 419 |
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Zigzag spring for seat -- Technical specifications
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GB/T 28269-2012
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Basic data | Standard ID | GB/T 28269-2012 (GB/T28269-2012) | | Description (Translated English) | Zigzag spring for seat -- Technical specifications | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J26 | | Classification of International Standard | 21.160 | | Word Count Estimation | 18,187 | | Quoted Standard | GB/T 1805, GB/T 2828.1, GB/T 4357, YB/T 5220 | | Regulation (derived from) | National Standards Bulletin No. 9 of 2012 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the material with a round cross-section of the seat with serpentine springs technical requirements, test methods, inspection rules and signs, packaging, transportation and storage. This standard applies to the vehicle seat, furnitu | GB/T 28269-2012: Zigzag spring for seat -- Technical specifications---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.
Zigzag spring for seat.Technical specifications
ICS 21.160
J26
National Standards of People's Republic of China
Technical conditions for snake - like springs with seats
2012-05-11 release
2012-12-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed and centralized by the National Standard Committee on Spring Standardization (SAC/TC235).
This standard is responsible for drafting units. Zhejiang Feili Hardware Spring Co., Ltd., Guangzhou Huade Automobile Spring Co., Ltd., Guangzhou Wei Asia Auto Zero
Parts Limited.
This standard participates in the drafting unit. Wuxi Huaguang Seat Spring Co., Ltd., China Machine Productivity Promotion Center, Haining Shengli Hardware Spring
Co., Ltd., Zhangjiagang City Deer Spring Manufacturing Co., Ltd.
The main drafters of this standard. Gu Lifei, Yang Weiming, Zhang Chaofang, Lu Peigen, Guo Genghao, Huang Shen, Dou Zhi, Zhou Weiguo, Zhou Haidong.
Technical conditions for snake - like springs with seats
1 Scope
This standard specifies the technical requirements, test methods, inspection rules and marking, packaging for snake springs made of circular cross-section materials,
Transport, storage.
This standard applies to the vehicle seat, furniture, seat with a serpentine spring (hereinafter referred to as snake spring).
For other seats, furniture with snake spring can be used.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 1805 spring terminology
GB/T 2828.1 Sampling inspection procedures Part 1. Batch inspection sampling plan for retrieval by quality limit (AQL)
GB/T 4357 cold drawn carbon spring steel wire
YB/T 5220 Carbon spring steel for non - mechanical springs
3 terms, definitions, codes and units
The terms and definitions defined in GB/T 1805 and in Table 1 apply to this document, as shown in Table 1.
Table 1
Term Definition Code Unit
width
width
Snake spring adjacent two peaks perpendicular to the free length (chord length,
Arc length) direction
hs
radius
radius
The forming radius r of the circular snake spring
mm
Peak number
crestnumber
Specifies the free length (chord length, arc length) within the reed spring
The number of times of molding
ns -
Free arc high
freecamber
Snail spring in the no-load when the arc height h0
Free arc length
freearclength
The arc length of the snake spring in no load
Free chord length
freespan
The chord length L0 of the snake spring in no load
Arcuate, arc-shaped arc radius
radiusofarchorarc
The radius of curvature of the spring is perpendicular to the width direction
mm
Center distance
centerdistance
Rounded snake adjacent to the center of the two peaks
half
l mm
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