FR2458415A2 - Locking of car sunshield position - uses coaxial elements locked together by u spring fitting on flats on rod and plastics bush - Google Patents

Abstract

The screen support is made of several parts, joined coaxially. One, fixed to the screen, can be positioned around the pivot with the rod or tube support. It can give the toroue necessary to move the screen and fix it according to flats on the rod. The locking is done by a U shaped spring (5) of the same length as its housing. A bush of plastics material is placed inside a female part (1) fixed to the sunshield frame. The bush is firmly fixed to the female part.

Description

The main patent relates to a device allowing the blocking of a sun visor in a predetermined position.

It comprises two coupled coaxial cylindrical parts, one being a male element constituted by a rod or a tube of circular section having one or more dishes, the other playing the role of a female element secured to the screen pivoting around said element. male, and comprising a means ensuring an adequate torque and a fixed stop of the screen according to the predetermined position or positions as soon as it is superimposed on one of the dishes of the male element. This means is a Z spring or a flexible canvas of injected or molded material.

The purpose of this addition is to improve this device so as to facilitate and also extend its use, while ensuring better torque on the one hand, and avoiding any risk of seizing on the other hand.

This improved device comprises several coaxially coupled parts, one being a male element constituted by a rod or a tube of circular section having one or more dishes, the other of rectangular section playing the role of female element integral with the screen. pivoting around said male element, and comprising several elements ensuring an adequate torque and a fixed stop of the screen according to the predetermined position or positions. As soon as the dishes of the two elements are superimposed relative to each other, a positioning means acts.

This means is a U-shaped spring of the same length and contained in the female element, the latter being fixed to the frame by welding or any other satisfactory process; a plastic lining ensures a regular torque and its flat in its upper part immobilizes the screen in a predetermined position.

Other characteristics will appear in the description which follows; with reference to the attached plans
Figures Ia to Ic show a female element I coupled to the male element
5. This female element I obtained by stamping any suitable material
known, traps in its lower part the frame 2 of the screen to which it
is made integral for example by welding 9; inside the stamped
and over its entire length is positioned a U-shaped spring 3 this deforms
a socket 4 or its variant 4 'of special section to which it is fixed by a slide 5' or any other satisfactory system, this socket 4 or 4 'of plastic material has in its upper part a dish 6 over its entire length and suitable for the female element I, its exterior is provided with a lug 7 and notches 8 which will guarantee a determined positioning inside the female element. The dish 6 of the socket described below ensures the stability of the male element 5 when the dishes of the socket and the male element are opposite.

The male element 5 formed of a rod or a tube of circular section having one or more dishes, constitutes the pivot axis between the spring 3 and the upper plate of the female element I by means of the socket 4 or 4 '.

The spring 3 determines and guarantees the required torque, and immobilizes the screen of the sun visor as soon as the flat part corresponding to a well-defined position appears.

Claims (4)

1) Device for blocking the position of the screen of a motor vehicle sun visor, the support of which comprises several coaxially coupled parts, one secured to the screen that can be oriented around the axis of this coupling with the support rod or tube, characterized in that it includes a means intended to ensure the adequate torque necessary for the displacement of the screen around the support rod and to fix this same screen fixedly in one or more pre-positions -determined according to the dish (s) of the rod. 2) Device according to claim I characterized in that the means intended to guarantee the torque and block the screen in certain positions is a U-shaped spring of the same length as the stamping which contains it. 3) Device according to claims I and 2 characterized by a plastic sleeve or any other satisfactory material; embedded inside a female element which is fixed to the frame of the sun visor. 4) Device according to claim 3 characterized by a socket 4 and its variant 4 'of special section comprising in its upper part a flat determining the stable position of the sun visor according to the flat or the rod, and in its lower part a system for hanging the U-shaped spring. The external shape is provided with lugs and notches which will make this socket integral with the female element.