BS ISO 3584-2020 Road vehicles一Clevis couplings一 Interchangeability.
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 — 50 mm drawbar eye — Interchangeability
ISO 8718. Road vehicles — Drawbar couplings and eyes for hinged drawbars — Strength tests
ISO 8755, Commercial road vehicles —40 mm drawbar eye — Interchangeability
ISO 12357, Commercial road vehicles — Drawbar couplings and eyes for rigid drawbars
3 Terms and definitions
No terms and definitions are listed in this document.
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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 he identified by the following information, in the order given:
a) reference to this document;
b) number of the category according to TableJ..
EXAMPLE Frames with mounting dimensions according to category 3:
Crossmember (or drawbeam or mounting bracket) 1503584 — Category 3
4.3 Clevis couplings meeting the requirements of this document shall be identified by the following information, in the order given:
5.2 Dimensional requirements on frame for mounting clevis coupling
Dimensions on the frame required for mounting of the clevis coupling (see Figure 2), such as the minimum flat surface defined by dimensions F and G, shall be as given in Table 2. Tolerances on drilling pattern dimensions shall be as shown in Figure 1.BS ISO 3584 pdf download.