FR2502350A1 - Hinge for spectacle frame - has screw which forms both pivot and fixing axis and second locking two parts together - Google Patents

Abstract

The hinge is for the frame of a pair of spectacles or sun glasses. It consists of a plate (a) fixed firmly to the frame by a mounting foot. A hinge plate (b) pivots via a self locking screw (c). Another screw (d) locks and fixes the parts together. This gives mechanical adjustment and precision of inclination of the leg. At the same time, it allows leg interchangeability.

Description

 The present invention relates to the hinges of glasses, optical and solar, whose inclination of the branches, their replacement, their adjustment, are impossible in a mechanical and rational way at this time.

This device allows the inclination of the branches relative to the body, but also the replacement of the knuckle of the body, and of the connection of the branches with the body of the frame.
When it is desired to adjust the inclination of the branch relative to the vertical axis of the body of the frame, orR acts by torsion on the base of the body knuckle, or of the branch knuckle. This operation always leads to rupture. The bezel is then unusable, because one cannot change the hinges, these being embedded in the plastic.

 The hinges according to this invention make it possible both to mechanically modify the inclinations of the branches relative to the axis of the body of the frame, but also, and above all, to change the hinges of the body when these are broken. Avoid adjusting the brcnche with the body post of the mount after tilting, since this fitting is continuously in alignment. Another advantage is that this system can be combined with any principle of elastic temples.

 There is no maintenance, the inclination is always in the same vertical plane, so the branches on closing will find the same position behind the body of the frame.

 The construction of this hinge is very simple, the well-sized parts will not be fragile, and your inclinations will be mechanically adjustable from -5degrees to +15 degrees relative to the axis of the body of the frame. The reference axis being the vertical axis.

 The attached boards represent the hinge according to its profiles and sections, as well as the way of incorporating it into the body stud.

Figure 1 shows the perspective of the two parts a and b assembled
Figure 2 shows the detail of the parts with tilt adjustment by lateral block screw. Knowing that a is the base, b the tilting knuckle,
- c the connecting screw between the two parts a and b and d, the locking screw after desired tilting.

 Figure 3 is the same presentation as above, but the tilt can 3rd do by a worm which secures the parts a and b at the desired angle.

 Figure 4 is a section of all of this hinge embedded in the stud of the body of the frame. We can very easily distinguish the mounting foot embedded in the post of the body of the frame and parts a and b which is the hinge itself.

Figure 5 is the section of the adjustment system of the two elements a and b, by worm c
Figure 6 shows the cut o make in the post of the body of the frame to ncruster the fixed base a.

 Figure 7 is the simplified drawing in two views, front view and in profile of the body post of the frame.

 Figure e is a drawing showing that at any inclination, the bronchus i and the body post 2, are always in the same axis.

 This hinge comprises 4 elements: A base A, with its prism-shaped foot, made integral with the body of the frame by encrusting it by ultrasound. A knuckle B, pivoting and interchangeable, fixed to the boss by a self-locking countersunk screw C, also serving as an axis of rotation, a screw D, for adjusting the inclination, locking and making the parts A and B at the desired position. Finally a check mark E, mobile will serve as a hubcap.

 In the event of the body knuckle breaking, simply remove the wing E, loosen the screws C and D, to change the broken body knuckle.

 To modify the inclination of the branch, the screw D is loosened, and the knuckle B is pivoted on the base A, it is immobilized in the requested position and tightened the screw D.

 The parts are ex skinned in stainless steel, for the base and the nickel silver screws for the knuckle proper.

 This hinge has the advantage of being used in all cases of optical and solar mounts, where quality and reliability are required.

 This invention also has a great aesthetic advantage, since there will never be a break in alignment between the body post and the branch.

Claims (4)

 1 - optical and sunglasses hinge applied to the branches, characterized in that it comprises a base (A) made integral with the body of  the frame for a fixing foot, a knuckle (B) (fiv.1) pivoting by means of the screw (C) (fig.2) which is self-locking and a screw (D) locking and making the base integral (A) knuckle (B).  bility of said branches.  (D) provides mechanical adjustment, precision of the inclination of the telescope branch in the desired part, with the advantage of ensuring an interchangea  Parts (A) and (B) are independent and their blocking obtained by the screw  2 - optical and sunglasses hinge according to claim 1  characterized in that the screw (C) simultaneously acts as an axis of rotation and  fixing means between the parts (A) (B) (fig.3p  3 - hinge of optical and solar glasses according to claim 1 coractérisée as regards the screw (D) perhaps in the form of an endless screw (fig.3) which makes micrometric adjustment easier.  4 - optical and sunglasses hinge according to claim 1 characterized in that the tilting is done in the axis of the screw (C) and not b the height of the hinge connecting the part B to the branch, it is obtained a constant alignment of said branches.