Anti-twist device for a foldable coupler, and foldable coupler comprising an Anti-twist device

SE548424C2Active Publication Date: 2026-07-23DELLNER COUPLERS AB
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Patent Information

Application Number
SE2451160
Authority / Receiving Office
SE · SE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2026-07-23
Estimated Expiration
2044-11-18

AI Technical Summary

Technical Problem

Foldable railway couplers experience twisting or sagging of the coupler shank when in the folded state, which poses safety risks and prevents secure stowing, particularly in urban environments where vehicles and pedestrians are present.

Method used

A foldable coupler anti-twist device with a blocking assembly and control member that locks the coupler shank in alignment during folding and stowing, while allowing normal operation without hindering pivoting, using a blocking element that moves between blocking and non-blocking positions.

Benefits of technology

The anti-twist device effectively prevents coupler shank twisting during stowing, ensuring secure stowing and safe transport without interfering with the coupler's normal operation, even on non-horizontal tracks.

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Abstract

The present invention relates to an anti-twist device (10, 10’, 10”) for mounting on a foldable coupler (1000), comprising- an attachment member (11, 11’, 11”) configured to be mounted on one of a rear shank portion (1120) and vertical support (1600), - a blocking assembly (12, 12’, 12”) connected to the attachment member (11, 11’, 11”) and comprising a movable blocking element (13, 13’, 13”),- a control member (14, 14’, 14”) connected to the blocking assembly (12, 12’, 12”) and configured to operate the blocking element (13, 13’, 13”) along a blocking element path from a non-blocking position to a blocking position,wherein said blocking assembly (12, 12’, 12”) is configured in the blocking position to extend the blocking element (13, 13’, 13”) towards the other of said rear shank portion (1120) and vertical support (1600) on the first side of the longitudinal axis to limit a twisting movement of the coupler shank (1100) around the longitudinal axis (B) of the rear shank portion (1120) in relation to the pivot anchor assembly (1200). The invention also relates to a foldable coupler (1000)
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