BS ISO 3584:2020 pdf free.Road vehicles-Clevis couplings-Interchangeability.
BS ISO 3584 1 Scope This document specifies the characteristics necessary for the mounting and interchangeability of clevis
couplings on the frame (cross member, drawbeam or mounting bracket) of towing vehicles for trailers.
This document is applicable to clevis couplings intended for connection to trailers equipped with a
drawbar eye on the drawbar of the trailer. Characteristics not specified are left to the discretion of the component manufacturer.
2，Normative references The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1102, Commercial road vehicles一50 mm drawbar eye一Interchangeability
ISO 8718, Road vehicles一Drawbar couplings and eyes for hinged drawbars一Strength tests
ISO 8755, Commercial road vehicles一40 mm drawbar eye一Interchangeability
ISO 12357, Commercial road vehicles一Drawbar couplings and eyes for rigid drawbars
4.1 Reference may be made to this document both for clevis coupling mounting dimensions on the frame and for the separate clevis coupling. 4.2 Frames in conformance with this document shall be identified by the following information, in the order given:
a) reference to this document; b) number of the category according to Table 1. EXAMPLE Frames with mounting dimensions according to category 3: Crossmember (or drawbeam or mounting bracket) ISO 3584一Category 3
4.3 Clevis couplings meeting the requirements of this document shall be identified by the following information, in the order given:
6.1 General The requirements of 6.2 to 6.4 are applicable to all clevis couplings. Additional requirements applicable to C 40, C 50 and classified clevis couplings of both dimensions are given in 6.5. 6.2 Load requirements The clevis coupling shall satisfy the tests specified in ISO 8718 or ISO 12357 or both. 6.3 Dimensional requirements The maximum outer dimensions of all components of the clevis coupling shall be within the envelope box defined in Table 3 (see Figure 3). In order to permit safer operation of the clevis coupling, there shall be adequate free space around actuating devices. Dimensions needed to ensure operating clearance for actuating devices are also shown in Figure 3.BS ISO 3584 pdf download.