ISO 1726-1973 rus PDF

Full title and description

St ISO 1726-1973 rus — Russian-language edition/issue of ISO 1726:1973, "Road vehicles — Mechanical coupling between tractors and semi-trailers — Interchangeability". This product entry describes the Russian (rus) version of the original 1973 ISO publication in PDF/electronic format for use by manufacturers, designers and standards libraries.

Abstract

This International Standard (ISO 1726:1973) defines interchangeability dimensions and related operating dimensions for mechanical couplings between tractor vehicles and semi‑trailers (gooseneck contour, certain clearances and angle values) to permit safe and reliable mating of tractors and semi‑trailers. The original document is a short technical specification focused on geometry and interface dimensions for articulated vehicles.

General information

• Status: Withdrawn (original edition withdrawn; later revisions published under the ISO 1726 series).
• Publication date: May 1973 (first edition).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.040.70 (Couplings — road vehicles).
• Edition / version: Edition 1 (1973).
• Number of pages: 4 (original ISO document length).

Core bibliographic details above are taken from the ISO catalogue entry for ISO 1726:1973.

Scope

Specifies the critical interface and interchangeability dimensions for mechanical coupling between tractors and semi‑trailers (articulated vehicles). The standard addresses the gooseneck contour geometry, specified operating angles and certain clearances intended to ensure that a semi‑trailer can be coupled to different tractors without interference, subject to limitations for special vehicle types. It is a concise specification intended to standardize mating geometry rather than load limits or vehicle dimensions governed by legislation.

Key topics and requirements

• Definition of gooseneck contour geometry and associated interchangeability dimensions.
• Specified operating angle values and related clearances to avoid interference during coupling.
• Dimensions and tolerances for interfaces that affect interchangeability between tractor and semi‑trailer.
• Applicability notes and limits (not intended for certain special vehicle types where separate specifications apply).

Key technical themes align with later ISO 1726 series work (interchangeability and interface geometry for different tractor/semi‑trailer combinations).

Typical use and users

Used by vehicle and trailer manufacturers, component suppliers (fifth‑wheel and coupling manufacturers), vehicle design engineers, conformity assessment bodies, regulatory agencies and standards libraries. Designers reference the standard when specifying mating geometry and clearances to ensure cross‑compatibility between tractors and semi‑trailers in commercial transport fleets.

Related standards

ISO 1726:1973 was later revised and superseded within the ISO 1726 family; subsequent and related publications include ISO 1726:1989 and later part‑based documents such as ISO 1726‑1:2000 and ISO 1726‑2:2007 that expand and update interchangeability requirements for various tractor / semi‑trailer combinations. For current requirements consult the later ISO 1726 series documents.

Keywords

ISO 1726, mechanical coupling, tractor, semi-trailer, interchangeability, gooseneck contour, fifth-wheel, coupling dimensions, articulated vehicle, road vehicles.

FAQ

Q: What is this standard?

A: ISO 1726:1973 is an International Standard that defined mechanical coupling interface and interchangeability dimensions between tractor vehicles and semi‑trailers; "St ISO 1726-1973 rus" indicates a Russian-language version or distribution of that 1973 publication.

Q: What does it cover?

A: It covers dimensional and geometric interface requirements (gooseneck contour, operating angles and selected clearances) necessary to permit interchangeability between tractors and semi‑trailers under the scope described in the standard.

Q: Who typically uses it?

A: Vehicle manufacturers, trailer manufacturers and designers, component suppliers (fifth‑wheel/coupling makers), conformity and type‑approval bodies, and standards libraries or translation services that maintain national copies of international standards.

Q: Is it current or superseded?

A: The 1973 edition is withdrawn and has been superseded by later ISO 1726 revisions and part‑based standards (see ISO 1726:1989 and the ISO 1726 series such as ISO 1726‑1:2000 and ISO 1726‑2:2007 for updated and current interchangeability requirements). For regulatory or design work use the most recent confirmed part of the ISO 1726 series.

Q: Is it part of a series?

A: Yes — interchangeability requirements have been maintained in the ISO 1726 family; later work split and extended the subject into parts (for example ISO 1726‑1 and ISO 1726‑2) to address different vehicle classes and coupling arrangements.

Q: What are the key keywords?

A: Coupling, interchangeability, tractor, semi‑trailer, gooseneck, fifth‑wheel, interface dimensions, ISO 1726.