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COMPOSANT ÉLECTRO-OPTIQUE DESTINÉ À L'INTRODUCTION DANS UNE PAROI DE PRODUIT, PRODUIT COMPRENANT UNE PAROI ET PROCÉDÉ D'INTRODUCTION
COMPOSANT ÉLECTRO-OPTIQUE DESTINÉ À L'INTRODUCTION DANS UNE PAROI DE PRODUIT, PRODUIT COMPRENANT UNE PAROI ET PROCÉDÉ D'INTRODUCTION
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摘要
A design is provided for a component and for an opening in a wall of a product which is to receive the component. The component has a barrel for passing through the opening with a set of lugs at the end of the barrel. Each lug has a clamping surface facing a head part of the component, and the region between the clamping surface and the head part forms a clamping zone. The opening is for example circular. A stepped thickness portion of the wall follows an arc from a locally thinnest portion to a locally thickest portion. The steps and/or the lugs are sloped upwardly towards the locally thickest end of the arc. To fit the component, it is inserted through the opening (for example with the lugs deforming inwardly) and then twisted. The twisting engages the lugs with the stepped thickness portion, providing a progressive ratcheted clamping function.
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