标准编号:	GB/T 4388-2008
中文名称:	呆扳手、梅花扳手、两用扳手的型式
英文名称:	Types of open-end wrenches box wrenches and combination wrenches
中标分类:	J47    手工工具
行业分类:	GB    国家标准
ICS分类:	25.140.30 25.140.30    手动工具 25.140.30
发布机构:	中华人民共和国国家质量监督检验检疫总局 中国家标准化管理委员会
发布日期:	2008-12-30
实施日期:	2009-9-1
标准状态:	valid
替代旧标准:	GB/T 4388-1995 呆扳手、梅花扳手、两用扳手的型式
翻译语言:	英文
文件格式:	PDF
中文字符数:	10000 字
翻译价格(元):	400.0
交付时间:	付款后 1 个工作日

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is not equivalent to the international standards ISO 7738: 2001, Assembly tools for screws and nuts - Combination wrenches - Lengths of wrenches and maximum thickness of heads, ISO 10102: 2001, Assembly tools for screws and nuts - Double-headed open-ended engineer's wrenches - Length of wrenches and thickness of the heads, ISO 10103: 2001, Assembly tools for screws and nuts - Double-headed, flat and offset, box wrenches - Length of wrenches and thickness of the heads, ISO 10104: 2001, Assembly tools for screws and nuts - Double-headed, deep offset and modified offset, box wrenches - Length of wrenches and thickness of the heads. This standard replaces GB/T 4388-1995 Types of open-end wrenches, box wrenches and combination wrenches. The main differences between this standard and GB/T 4388-1995 are as follows: ——The specifications (s1×s2) of 19×24, 24×26, 27×29 and 30×36 and their corresponding dimensions for double open-end wrenches and double box wrenches are added (Table 1 of 1995 Edition; Table 1 hereof); The end thickness of short-type double open-ended wrench in the previous standard is deleted, so that the thickness of long-type and short-type wrenches is consistent (Table 1 in 1995 Edition; Table 1 hereof); ——The specifications (s) of 3.2, 4 and 5 for combination wrenches and their corresponding dimensions are added (Table 2 of 1995 Edition; Table 2 hereof); ——The length and end thickness of the dual-purpose wrench are adjusted (Table 2 of 1995 Edition; Table 2 hereof); ——The values for basic dimensions are adjusted (Tables 1 and 2 of 1995 Edition, Tables 1 and 2 hereof). This standard was proposed by China National Light Industry Council. This standard is under the jurisdiction of Subcommittee on Tool Hardware of National Technical Committee on Hardware Products of Standardization Administration of China. The previous editions of the standard are as follows: ——GB 4388-1984 and GB/T 4388-1995. Types of open-end wrenches, box wrenches and combination wrenches 1 Scope This standard specifies the types of open-end wrenches, box wrenches and combination wrenches for screwing bolts and nuts or other fasteners. The illustration of this standard is only an example and does not affect the design of products. This standard is applicable to open-end wrenches, box wrenches and combination wrenches specified in GB/T 4625. 2 Normative references The following standard contains provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply to this standard. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. GB/T 4625 Assembly tools for screws and nuts - Nomenclature 3 Product classification 3.1 Types and basic dimensions of open-end wrenches 3.1.1 The open-end wrenches are divided into two types: double open-ended wrenches and single open-ended wrenches (see Figures 1 and 2). Where, the double open-ended wrenches can be further divided into short and long types. Figure 1 Double open-ended wrench Figure 2 Single open-ended wrench 3.1.2 The specifications and basic dimensions of double open-ended wrenches shall be as specified in Table 1, and that of single open-ended wrenches shall be as specified in Table 2. Table 1 Dimension combinations and basic dimensions of double open-ended wrenches and double box-ended wrenches Dimensions in millimeters

Foreword i 1 Scope 2 Normative references 3 Product classification

ICS 25.140.30 J 47 GB 中华人民共和国国家标准 GB/T 4388—2008 代替GB/T 4388-1995 呆扳手、梅花扳手、两用扳手的型式 Types of open-end wrenches，box wrenches and combination wrenches (ISO 7738：2001，Assembly tools for screws and nuts— Combination wrenches—Lengths of wrenches and maximum thickness of heads，ISO 10102：2001，Assembly tools for screws and nuts—Double-headed open-ended engineer's wrenches—Length of wrenches and thickness of the heads，ISO 10103：2001，Assembly tools for screws and nuts—Double-headed，flat and offset，box wrenches— Length of wrenches and thickness of the heads， ISO 10104：2001，Assembly tools for screws and nuts— Double-headed，deep offset and modified offset，box wrenches—Length of wrenches and thickness of the heads，NEQ) 2008-12-30发布 2009-09-01实施 中华人民共和国国家质量监督检验检疫总局 中国国家标准化管理委员会 发布 前言 本标准与国际标准ISO 7738：2001《螺钉和螺母的装配工具 两用扳手 扳手长度和头部最大厚度》、ISO 10102：2001《螺钉和螺母的装配工具 双头呆扳手 扳手长度和头部厚度》、ISO 10103：2001《螺钉和螺母的装配工具 双头直颈和弯颈梅花扳手扳手 长度和头部厚度》、ISO 10104：2001《螺钉和螺母的装配工具 双头高颈和矮颈梅花扳手 扳手长度和头部厚度》的一致性程度为非等效。 本标准代替GB/T 4388—1995《呆扳手、梅花扳手、两用扳手的型式》。 本标准与GB/T 4388—1995相比主要变化如下： ——增加了双头呆扳手和双头梅花扳手的规格(s1×s2)为19×24、24×26、27×29和30×36及其相应的尺寸(1995版的表1，本版的表1)； ——取消了原标准中短型双头呆扳手的头部厚度，使长型和短型厚度一致(1995版的表1，本版的表1)； ——增加了两用扳手的规格s为3.2、4和5及其相应的尺寸(1995版的表2，本版的表2)； ——调整了两用扳手长度和头部厚度的数值(1995版的表2，本版的表2)； ——对基本尺寸的数值作了调整(1995版的表1和表2，本版的表1和表2)。 本标准由中国轻工业联合会提出。 本标准由全国五金制品标准化技术委员会工具五金分技术委员会归口。 本标准所代替标准的历次版本发布情况为： ——GB 4388—1984；GB/T 4388—1995。 呆扳手、梅花扳手、两用扳手的型式 1 范围 本标准规定了扳拧螺栓和螺母或其他紧固件的呆扳手、梅花扳手、两用扳手的型式。本标准的图示仅是示例，并不影响对产品的设计。 本标准适用于GB/T 4625中规定的呆扳手、梅花扳手和两用扳手。 2 规范性引用文件 下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有的修改单(不包括勘误的内容)或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。 GB/T 4625 螺钉和螺母的装配工具术语 3 产品分类 3.1 呆扳手的型式和基本尺寸 3.1.1 呆扳手分为双头呆扳手和单头呆扳手两种型式(见图1和图2)，双头呆扳手可分为短型和长型两种长度。 图1 双头呆扳手 图2 单头呆扳手 3.1.2 双头呆扳手的规格和基本尺寸按表1的规定，单头呆扳手的规格和基本尺寸按表2的规定。 表1 双头呆扳手和双头梅花扳手的对边尺寸组配及基本尺寸 单位为毫米 双头呆扳手 双头梅花扳手 规格a(对边尺寸组配)s1×s2 厚度e max 短型 长型 直颈、弯颈 矮颈、高颈 全长l min 厚度e max a 括号内的对边尺寸组配为非优先组配。 表2 单头呆扳手、呆头梅花扳手、两用扳手的规格及其基本尺寸 单位为毫米 单头呆扳手 单头梅花扳手 两用扳手 规格s 厚度e max 全长l min 厚度e1 max 厚度e2 max 3.2 梅花扳手的型式和基本尺寸 3.2.1 梅花扳手分为双头梅花扳手(如图3～图4所示)和单头梅花扳手(如图5所示)两种型式，并按颈部形状分为矮颈型和高颈型(如图3、图5所示)，以及直颈型和弯领型(如图4所示)。 高颈型(G型) 矮颈型(A型) 图3 矮颈型和高颈型双头梅花扳手 直颈型(Z型) 弯颈型(W型) 图4 直颈型和弯颈型双头梅花板手 矮颈型(A型) 高颈型(G型) 图5 矮颈型和高颈型单头梅花扳手 3.2.2 梅花扳手的规格和基本尺寸按表1和表2的规定。 3.3 两用扳手的型式和基本尺寸 3.3.1 两用扳手的型式如图6所示。 A型 B型 图6 两用扳手的型式 3.3.2 两用扳手的规格和基本尺寸按表2的规定。