DE8117403U1 - HINGE JOINT ON AN EYEWEAR FRAME WITH AN ELASTICALLY EXTENDABLE BRACKET - Google Patents

Description

DR.- ING. HH WILHELM ¹ · "- ·· DTPL '.- ING.' H. DAUSTER D-7000 STUTTGART 1 GYMNASIUMSTRASSE 31Β TELEPHONE (0711) 291133/29 2857

Applicant: -3- G 6232 / 7a

Safilo SpA Societa ¹
Azionaria Fabbri'ca Italiana
La Vorazione Occhiali

Pieve Di Cadore (Belluno)
ITALY

Hinge joint on a glasses frame with elastic

deflectable bracket

The invention relates to a hinge joint of a spectacle arm on a spectacle frame, the hinge of which has a stable position of the temple both in the folded position for putting away the glasses, as well as in the open position for putting on, elastic deflection beyond the open position is possible. Well known and currently in use existing hinges of this type have some constructive and functional disadvantages. Due to the large number of mechanical Parts that make up the prior art hinges require them to be manufactured long and cumbersome work processes, both during processing and assembly. The hinges better known Art are also subject to wear which gradually leads to a loss of initial handling convenience, such as is characteristic of the glasses provided with such hinges.

The object of the present invention is to offer a hinge of the known type, which with such constructive and functional properties is provided that the disadvantages of the prior art do not occur.

According to the invention, this object is achieved by a hinge of the type mentioned, which has the following features:

- A sliding body which is slidably arranged in a receptacle in the end part of the bracket and protrudes from this,

- A bore which runs coaxially in this sliding body over a fixed depth that protrudes from the The end of it is measured

- A slot that extends lengthways in this sliding body extends a fixed lesser length measured from the protruding end and that after the The hole is open,

- A stop piece arranged transversely to the entrance of the receptacle, which extends over the slot and for the The sliding body forms the axial guide,

- A spring arranged in the bore, the ends of which on the one hand on the stop piece and on the other hand at the bottom of the Bore and

- An articulation of the protruding part of the sliding body on the frame.

Further features and advantages of the hinge according to the invention emerge from the following description of a preferred one Embodiment. Show it:

Fig. 1 is a sectional view of a top view of the hinge according to the invention, with the open Hanger,

Fig. 2 shows a cross section through the hinge of Fig. 1 in the plane II-II,

3 shows the sectional view similar to FIG. 1, but with a bracket deflected beyond the open position,

Fig. 4 shows a cross section through the hinge of Fig. 1 in the plane IV-IV and

Fig. 5 shows a cross section through the hinge of Fig. 1 in the plane V-V.

In the drawings, 1 generally denotes a hinge joint for a temple 2 on a frame 3 of a spectacle frame. In the example shown, the bracket 2 and the socket 3 are made of plastic material, while the hinge is accordingly of the invention is designed to connect the bracket and socket to one another in a metallic manner. The bracket 2 is with a metallic reinforcement 4 is provided, which forms a part 5 with a larger cross-section towards the end of the bracket. The version comprises a hinge bearing 6 with a part 6a, which is embedded in the plastic material, and a part 6b, which consists of this one stands out. The hinge 1 consists of a cylindrical sliding body 7 with a circular cross-section, which is in a corresponding cylindrical receptacle 8 with the axis X-X is arranged in part 5 of the metallic reinforcement 4 and partially protrudes from this recording 8. The sliding body 7 has a coaxial bore 9 with a fixed diameter D and a predetermined depth P, the depth P being measured from the protruding end 7 a of the sliding body 7. in the Sliding body 7 there is a slot 10 in the longitudinal direction, which has a fixed length from the end 7a, here denoted by L, has, and is smaller than the aforementioned depth P. The slot 10 forms a shoulder 7b in the sliding body 7 and is open to the bore 9. In the example shown, the slot 10 has the width H, which is only slightly smaller, than the diameter D of the bore 9. The hinge 1 includes a stop piece 11 which is arranged transversely to the axis X-X at the entrance 8a to the receptacle 8. The stop piece 11 is means a screw 12 fixed in part 5, the flattened head 12a of the screw and the opposite pin end 12b,

each with a corresponding flattened recess 5a or with a peg-shaped recess 5b in part 5 in the Are engaging. The center piece 12a of the screw is connected to the stop piece 11 via a thread. The stop piece 11 extends transversely to the slot 10 and represents the axial guide for the sliding body 7. A cylindrical spring with an outer diameter slightly smaller than that Diameter D, is received in the bore 9 and is supported with the ends 13a and 13b on the stop piece 11 and on Bottom 9a of the hole 9. The slot 10 forms a forked part in the sliding body 7, the fork prongs 14 and 15 of which protrude from the receptacle 8. The sliding body 7 is at the protruding ends of the fork prongs 14 and 15 on the protruding Part 6b of the hinge bearing 6 by means of a screw 16, which has the function of a pivot, articulated in a hinge shape. Preferably the forks 14 and 15 have reinforced ones Ends 14a and 15a in accordance with the dimensions of the screw 16.

The part 6b is substantially the same thickness as the width H of the slot, and is substantially rectangular on its periphery flattened so that the surfaces 17 and 18 are at right angles to each other, these surfaces with a wear-resistant Material 19 are coated. The surfaces 17 and 18 are mutually in frontal contact with the stop piece 11 when the bracket is either closed or otherwise in the open position. Temple 2 and socket 3 are essentially with their parts 2a and 3a in mutual contact when the glasses frame is open, the temple and the frame in this position merge continuously.

The mode of operation of the hinge is described below with reference to the initial state shown in FIG. 1. In this initial state, the bracket is in the open position

ι Ij ·· * · '

III

III I

Position. Due to the action of the spring 13, the bracket; kept stable in this position; the elastic force of the spring, 13 causes a frontal surface contact with uniform f;

■ ft force between the surface 18 and the stop piece 11. To the ΐ |

To bring the bracket into a closed position, it must be in ^{; ί}

Direction of arrow F are pressed, with a sufficiently large force is applied to overcome that of the spring 13. In this case, the sliding body 7 moves against the tensile force of the spring 13 by a sufficient amount out of the receptacle 8 out, whereby the surface contact of the stop piece 11 with leave the surface 18 and after overcoming the edge between the two surfaces 17 and 18 a surface contact with the surface 17 is produced. The closed position of the bracket, which is not shown in the figures, is because of the frontal surface contact with a force which corresponds to the force of the spring 13, between the surface 17 and the stop piece 11 represents a stable position.

To deflect the bracket, it only needs to be in the direction of the Arrow G, against the direction of arrow F, to be pressed, with a sufficiently large force to overcome the Force of the spring 13 is applied. In this case, a pressure point is formed between the parts 2a and 3a of the bracket 2 or the socket 3, and the sliding body 7 is pulled out of the receptacle 8 against the tensile force of the spring 13. The maximum Angular deflection of the bracket in the direction of arrow G, and thus its maximum deflection, is reached when the shoulder 7b of the sliding body 7 rests on the stop piece 11. This means that every further step out of the sliding body 7 from the receptacle 8 prevented. Any further compression of the spring 13 is prevented, so that in no case the state of a packed (and largely ineffective) spring occurs.

-8th-

The position of the maximum deflection shown in FIG. 3 is an unstable position. When the bracket is released, so it takes by the action of the spring 13 on the sliding body 7 and by the restoring force caused thereby in the direction for recording 8, its opened starting position again.

Due to the small number of parts that make up the hinge accordingly Forming this invention, it is easier to manufacture and also retains the advantages of the better ones Handling of the glasses, even after countless operations of opening, closing and deflecting the temple.

Another advantage of the hinge according to the invention arises due to the smaller dimensions and from the lighter weight, all of these features working together to provide convenience in use with one Increase hinge-mounted glasses.

Claims (2)

PATRjSITANWÄLte,,, ·· '. , DR.- ING. HH WILHELM "'-' Oil PL. - ING. H. DAUSTER D-70 OO STUTTGART 1 ■ GYMNASIUMSTRASSE 31B · TELEFON (07 11) 2911 33/29 28 applicant; Stuttgart, June 11, 19 81 G 6232 / 7a Safilo SpA Societa1 Dr.W / Ei Azionaria Fabbrica Italiana La vorazione Occhiali Pieve Di Cadore (Belluno) ITALY Claims 1. Hinge joint on a glasses frame with an elastic swing-out bracket, characterized by the following features: - A sliding body (7) which is slidably arranged in a receptacle (8) in the end part of the bracket (2) and from this one protrudes, - A bore (9) which runs coaxially in this sliding body (7) over a fixed depth (P), which from the protruding end (7a) is measured from, - A slot (10), which extends lengthways in this sliding body (7) extends over a specified shorter length (L), % which is measured from the protruding end (7a) ^s and which is open towards the bore (9), - A stop piece arranged transversely to the entrance of the receptacle (8) (11), which extends over the slot (10) % stretches and the axial guide for the sliding body (7) forms, • - A spring (13) arranged in the bore (9), whose ^! Ends on the one hand on the stop piece (11) and on the other hand rest on the base (9a) of the bore (9), as well as - An articulation (16) of the protruding part (14a, 15a) of the sliding body (7) on the frame (6). > t t) t I I I t iV '*' ' 2. Hinge according to claim 1, characterized in that the sliding body (7) has a circular cross section.