---
publication_id: "OT-2026-000001544"
title: "Contactless locking of ratchet columns"
published_at: "2026-09-15T19:06:34.687809Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000001544"
categories:
  - "material-handling/conveying-systems"
keywords:
  - "b25h3/04"
  - "b25h3/04"
  - "b25h3/04"
  - "b65g1/14"
  - "b65g1/14"
  - "b25h3/04"
---

# Contactless locking of ratchet columns

## Abstract

In an automatically operable rack for storing workpieces in ratchet columns with side walls ( 1.1, 1.2 ), between which movable ratchets ( 5 ) are arranged which serve to hold the workpieces, wherein the ratchets ( 5 ) can be brought from a rest position into a working position in which they hold the workpiece, and a locking/unlocking unit is assigned to the last ratchet ( 5.2 ), the locking being affected by a rotary movement of the last ratchet ( 5.2 ) into its working position, the rotary movement of the last ratchet ( 5.2 ) entrains a bolt ( 9 ) which is received by a recess ( 12, 49 ) when the working position is reached.