DE2828908A1 - Spectacle hinge play take=up adjuster - uses injection moulded plastics ring insert in form of short cylinder with end shoulders - Google Patents

Abstract

The adjustment is for play in the hinges of spectacles. The adjustment allows rationalisation of the manufacture and assembly of the hinges. The play is taken up by a plastics ring (10) within the drilled and tapped incut (6) of the securing screw (8). The ring in the form of a short cylinder with end shoulders, is inkection moulded of a comparatively rigid material not easily deformed. The shoulders trapping the ring in position may be right angles or may form an acute angle with the cylinder length.

Description

Description:

The invention relates to a further development of the "spectacle hinge with gear regulation according to patent P 23 56 818.5-51.

The glasses hinge with gear regulation according to the main patent is characterized by. inserted between the hinge eyes Plastic plates with collar sleeves, which are in the respective Preferably, the hinge hole in the middle section hinge is sufficient.

The object of the present development of the invention is to to rationalize the manufacture and use of this gear regulation and, moreover, to achieve tolerance compensation, that there is no plastic that brakes radially against the hinge screw, but that the hinge can move by itself

at
Axial4age of the neighboring hinge eyes with their flat surfaces

at the plastic pegs, which are flat on both sides.

The development of the invention according to the main patent is characterized by the fact that with largely embedded on both sides plastic plates plan the ring recesses at an angle are undercut and preferably rounded at the inner ring edge, in such a way that no radial pressure whatsoever is exerted on the hinge

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screw comes, but only a certain braking effect in the hinge movement through axial contact on the plane surfaces of the Plastic plate is achieved.

In particular, the plastic collar sleeves touch each other they are formed from a sleeve piece with the plastic ring plate in the hinge eye, the plastic plate as an annular flange, possibly with a weak undercut, introduced or injection-molded in one piece with the sleeve are.

The use of ring plates has proven to be particularly advantageous manufactured or injected with sleeves made of relatively hard, dimensionally stable plastic.

A preferred embodiment of the spectacle hinge with speed regulation according to the development of the invention is shown schematically in partial section, for example, in the drawing namely show:

F i g. 1 shows the general view of such a hinge training in partial section and

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909882/0505

F i g. 2 and 3 with the enlarged partial sections of FIG

the training according to the invention.

As can be seen from the drawing, there is a hinge connection according to the main patent from the middle section hinge 1 to let in in the middle part 2 with protruding metal hinge eye 3, the bracket hinge part 4 to let in resp. Attach to bracket 5 with protruding metal hinge eyes 6, 7 and the hinge screw 8, which through both eyes 3 and 6 is pushed through and screwed in eye 7.

As can be seen from the drawing, on both sides of the eye 3 of the middle part hinge 1 plastic ring plate 9 with as Sleeve continuous collar 10 let in on both sides in annular grooves 11, the collar sleeve 10 reaching into the bore 12 on the eye 3 and touching one another or, above all, when injecting are formed in one piece with the rings 9. Thus, the gear regulation is made of plastic with flat flanges 9, as is drawn out enlarged in FIG. 2, the eyeglass temple 5 being activated by the optician when the message is sent Support effect due to the narrow movement gap 13 on both sides results.

According to the idea of the further development, FIG. 3 also shows

The eye 3 of the central part hinge is shown enlarged with inserted plastic ring plates 9a in the annular groove 11a, which are mutually undercut obliquely, a rounding lib being provided to avoid cutting. The collar 10, which is continuous as a sleeve, remains in the bore 12. Through the oblique undercut 11a with rounding 11b a radial pressure from the annular plate 9a over the collar sleeve and thus on the hinge screw 8 is certainly avoided, so that the hinge movement is solely due to the flat Start of the outer hinge eyes 6.7 on the flange ring plate 9a is achieved without the flange material being able to migrate into the bore 12 under high surface pressure, which is especially the case with conically outwardly tapering flange ends of plastic sleeves is the case, in which the surface pressure, i.e. the axial pressure is falsified into radial pressure.

Claims (1)

P ATE NTAN WALTZ DR. RUDOLF BAUER ■ DIPL.-ING. HELMUT HUBBUCH DIPL.-PHYS. ULRICH TWELMEIER WESTLICHE 29-31 (AM LEOPOLDPLATZ) D-TS3O PFORZHEIM, (WEST-QERM ANV) Y (07231) 102200 / 7O June 26, 1978 Il / Wa OBE-Werk Ohnmacht & Baumgärtner K.G., 7536 Ispringen "Glasses hinge with speed regulation" Addition to ....... (P 23 56 818.5-51) Claims 1. Spectacle hinge with speed regulation, especially in a three-part hinge design with metal hinge eyes and hinge screw for articulation according to the patent. ... ... (P 23 56 818.5-51) with plastic plates with collar sleeves inserted between the hinge eyes, which extend into the respective hinge bore, preferably of the central part hinge, characterized in that with largely embedded plastic plates on both sides, the ring recesses are undercut at an angle and at the inner ring edge are preferably rounded, so that no radial pressure is applied to the hinge screw. 2. Eyeglass hinge according to claim 1, characterized in that the plastic collar sleeves touch, insbesonde- - 2 - 909832/0505 INSPECTED 2823908 re from a sleeve piece with the plastic ring plates in the
Hinge eyes are formed, the plastic platelets being introduced or injection-molded in one piece with the sleeve as an annular flange, optionally with a weak undercut. 3. Spectacle hinge according to claim 1 or 2, characterized in that the ring plates with sleeves are made or injected from relatively hard, dimensionally stable plastic. - 3 - 9 09 8 82/13