标准摘要
[中文适用范围]： 本 SAE 标准包括与车辆额定总重 (GVWR) 不超过 4540 千克（10 000 磅）的所有类型拖车或牵引车辆一起使用的联轴器、挂钩和安全链。这包括多用途拖车、船拖车、露营拖车、旅行拖车和特殊用途拖车等类型，通常由传统客车、轻型商用车、轻型卡车和多用途客车牵引。本文件主要适用于球窝型联轴器和挂钩。它不应被解释为单独限制这种类型，而应在适当的情况下适用于环枢轴、U 形夹销或任何其他类型。 [外文原描述]： This SAE Standard includes couplings, hitches, and safety chains used in conjunction with all types of trailers or towed vehicles whose Gross Vehicle Weight Rating (GVWR) does not exceed 4540 kg (10 000 lb). This includes such types as utility, boat, camping, travel, and special purpose trailers which are normally towed by conventional passenger cars, light-duty commercial vehicles, light trucks, and multipurpose passenger vehicles. This document is intended primarily for ball-and-socket type of couplings and hitches. It should not be construed as a limitation to this type alone but should apply where appropriate to ring-and-pintle, clevis-and-pin, or any other draft means designed to serve this purpose.Cross Reference:
英文名称Trailer Couplings, Hitches, and Safety Chains—Automotive Type