DE102008020795B4 - Three-part spectacle frame - Google Patents

Abstract

Three-piece spectacle frame, comprising: - a spectacle frame (1) for framing eyeglass lenses, wherein the spectacle frame (1) is made of hardened spring steel as a whole; - A first temple (8) on which there is a first counterpart, which is connectable to the spectacle frame (1) by means of the first counterpart; and - a second eyeglass temple (8) on which there is a second counterpart, which is connectable to the spectacle frame (1) by means of the second counterpart, wherein the spectacle frame (1) comprises: - an upper frame part for the upper-side frame of spectacle lenses; - A lower frame part for the bottom frame of spectacle lenses; - two nostrils (2); - a nose bridge (3); - A first spectacle jaw (4), which is arranged on the left side of the socket parts; and - a second spectacle jaw (4), which is arranged on the right side of the socket parts, wherein the spectacle jaws (4) - each having a hinge part (6); and - are made slot-shaped in extension of the socket parts and thus of two parallel legs (5), which are merged at their ends to the respective hinge part (6) consist, wherein the respective hinge part (6) - at its closed end with the respective temple bow (8) is connectable; and - two protuberances (7) upwards and downwards, which are each bent in a position perpendicular to the closed end of the hinge part (6), wherein the protuberances (7) are each perforated and formed on the respective temple (8) The respective respective counterpart is received, wherein the eyeglass temple (8) are each cut in the direction of the counterpart tongue-shaped, that in each case a resilient tongue (10) is formed, characterized in that the respective one resilient tongue (10) - bent so horizontally at the end is that this presses on the inside of the end of the respective spectacle jaw (4); - Is designed to determine by means of variation of the bias of the tongue (10) those forces with which the respective eyeglass temple (8) opens and closes; wherein - with different length of the tongue different ways of unfolding and closing the respective temple piece (8) can be realized.

Description

The invention relates to a three-part spectacle frame, in which the insertion or replacement of the lenses can be done taking advantage of the spring action of the spectacle frame material. The construction also ensures an optimal hinge function for connecting the spectacle jaws and eyeglass temple without the use of additional connecting parts.

State of the art

Eyeglass frames of known design consist of a frame or frame between which the glasses are held and at the ends of which are the spectacle cheeks, which are connected to the temples. It is known that the straps are connected by a hinge on the jaws with the spectacle middle part. The hinge usually has a screw connection and forms an articulated connection of eyeglass temple and spectacle cheeks. The lenses are thereby inserted by opening the left and right frame edge by removing the screws and re-attached after inserting the glasses.

The screw connections also prove to be the weak points of these glasses, since they loosen and loosen up very quickly through use. Often the screws are lost unnoticed by the wearer. This type of hinge also has the disadvantage that the glasses become wider and thicker through the jaws. Overall, the appearance of the glasses does not meet the fashion requirements.

Furthermore, rimless eyeglasses are known in which the hinge is attached directly to the outer sides of the glasses and there is only one central part which holds the glasses inside.

In known screwless spectacle hinges, such. B. in the EP 0863424 B1 described, the connection between the temple piece and eyeglass frame is made by a plug-in system, which can be realized by additional spring effect opening and closing the eyeglass temple.

This in EP 1023626 B1 disclosed eyeglass frame describes eyeglass temple having at its frame-side end respectively extensions which are wound or bent, which creates a tube which engages in corresponding openings in the eyeglass frame. The opening and closing of the eyeglass temple is achieved by a two-part hinge core inserted into the tube.

Finally, that describes DE 69636975 T2 a titanium frame cut out spectacle frame in which the titanium wire forms the nose bridge and the extensions for holding the nose pads. Furthermore, the titanium wire is so flexible that it can be threaded to hold the glasses through the side of the frame edge openings and thus the glasses are fixed. Opening the spectacle frame for replacing the glasses is particularly difficult here.

In the DE 20 2006 011 553 U1 a hinge for spectacle frames is described in which the spectacle cheek is formed by spreizförmige arms that allow snapping the temples. The hinge is locked by a support plate. This hinge solution requires several parts that can create additional vulnerabilities. The disadvantage is that, due to the through-hole part used, the shear forces are not stopped and a clean running is not guaranteed. The glasses are not adjustable and the straps can not be readjusted. Another disadvantage is that the eyeglass temple uncontrolled open and close.

The US 2007/0171356 A1 describes a spectacle frame that glasses cheek side consists of two tight legs, these legs engage by the joining of the T-shaped recesses in the upper leg portion with the T-shaped counterpart in the lower leg portion. On the thighs there are protuberances, each with a hole, so that the connection counterpart can engage with its pin. The connection counterpart, consisting of the respective eyeglass temple, has an incision towards the connection, as a result of which the stirrups are compressible and thus the engagement of the cones is facilitated. Very disadvantageous in this solution is the use of an additional molding. In the US 2007/0171356 the spring action is achieved for opening and closing the eyeglass temple on the screwless hinge with a complicated, multi-threaded and thus resilient molding. The molded part is inserted into a slot on the spectacle jaw member under tension and the legs are pushed inside and fixed by the engagement of pins in the opening. In this complicated technology, the material used is repeatedly stressed by the many bends, also the bends of the bracket are a predetermined breaking point. Furthermore, it is imperative that there are two stable end conditions, the stirrups are opened or the stirrups are closed.

The WO98 / 48314 A1 describes a metal eyeglass frame, in which the round eyeglass temple are respectively screwed to two holding elements, which in turn are firmly glued or riveted to the eyeglass frame. There are many additional parts needed and the mentioned fortifications are the Weak points of this construction. The spring action for the folding mechanism is effected with a rod part, which ends with two further rods in a socket. It is disadvantageous that there are only two stable states for the folding mechanism - on or folded - too.

In the DE 20 2004 007 224 U1 a spectacle frame is disclosed in which the temples is divided into three parts. Cylinder shells are formed on the eyeglass temple and on the fitting part is the counterpart, so that both parts can hook into each other. All three parts act as a spring, as there are no hinge parts with holes and pins. In addition to the disadvantage of elaborate processing, there is also the disadvantage of additional securing parts on the spectacle jaws for holding the glasses and against the vertical slipping of the bracket.

It is the object of the invention to avoid these disadvantages.

With the invention, a three-piece spectacle frame is created, which exploits the spring action of the material to hold the lenses. By using spring steel, the preferably geriliten spectacle lenses can be used under tension and fixed in the holder. Advantageously, the glasses can be inserted or deployed without the spectacle frame must be opened laterally.

In the spectacle frame according to the invention, it is possible temples made of different materials, such. As plastic, wood, steel u. s. w. to use. In a preferred embodiment, eyeglass temples and spectacle cheeks are connected in an uncomplicated manner and without the need for further parts only by utilizing the spring effect of the material. The design prevents the lenses from falling out or dropping the temples, as no additional parts such as screws or rivets can be solved.

A particular advantage is additionally the fact that the temples do not unintentionally open or close. By changing the bias of the tongue according to the invention on the eyeglass temple, the forces can be set with which the eyeglass temple open and closed.

The invention ensures a cost-effective production by saving operations, which also small quantities can be produced economically justifiable. With this spectacle frame, a high standard of design and aesthetics can be fulfilled without compromising functionality.

According to the invention the object is achieved by the characterizing part of the main claim.

The three-part spectacle frame according to the invention has a spectacle frame for framing eyeglass lenses, wherein the spectacle frame is made of hardened spring steel as a whole. There are counterparts on the eyeglass temples which connect the eyeglass temples to the eyeglass frame. The spectacle jaws are arranged with the hinge part on the fitting parts, the hinge part being slit-shaped in the extension of the fitting parts. The hinge part has up and down each protuberances that are perforated and bent to accommodate the respective temple located on the respective counterpart. The eyeglass temple are cut tongue-shaped in the direction of the counterpart and the resulting resilient tongue according to the invention is bent horizontally so that it presses on the inside of the end of the respective lens cheek and generates a bias.

A further advantageous embodiment is described in dependent claim 2.

embodiment

The invention will be explained in more detail with reference to the embodiment.

In the schematic drawings, the invention is shown by way of example. In detail show:

1 : the top view of a spectacle frame according to the invention, consisting of the spectacle frame with spectacle bridge and nose wing and the spectacle cheeks,

2 : Hinge part of the spectacle cheek in front view,

3 : Hinge part of the eyeglass baking in top view,

4 : Hinge area of the eyeglass temple in front view

5 : Hinge area of the eyeglass temple in top view

In 1 is the spectacle frame 1 represented, which is made from the spectacle frame blank by means of laser cutting technology of hardened metal, in particular hardened spring steel as a whole. With this technique, the forms are fast, cheap and accurate to produce. There are no more expensive tools needed. The untreated metal can be used in all common surface qualities.

The illustrated spectacle frame 1 already contains the cut nostrils 2 below the bridge of the nose 3 as well as the side glasses jaws 4 ,

These glasses cheeks 4 are according to the invention in an extension of the upper and lower, the spectacle lenses enclosing socket part worked slit-shaped and thus consist of two parallel legs 5 , which at their ends to a hinge part 6 be merged.

The hinge part 6 has two protuberances 7 upwards and downwards, which are perforated and which are used to hold the eyeglass temple 8th serve its counterpart. The protuberances 7 are bent after the laser cut.

According to the invention the eyeglass temple 8th at the with the glasses baking 4 connected side so executed that the temple ends down and top pins 9 have, with which they in the openings of the protuberances 7 engage.

To the connection end in the direction of the spectacle jaw 4 is the temple 8th cut tongue-shaped. This springy tongue 10 is bent horizontally at the end so that they are each inside the end of the eyeglass jaw 4 suppressed. By means of the bias of this tongue 10 The forces can be determined with which the eyeglass temple 8th open and closed. Advantageously, thereby the eyeglass temple works 8th Do not accidentally open or close the glasses on or together. With the length of the tongue 10 are different ways of opening and closing the temples 8th realizable. That's how you can get the tongue 10 bend at the axis of rotation at an angle of 90 degrees, so that the eyeglass temple 8th when reaching an angle of less than 45 degrees to the spectacle frame 1 automatically fold. Is the angle 50 degrees fold the eyeglass temple 8th on automatically.

Bend your tongue 10 slightly behind the axis of rotation, open the temples 8th automatically when removing from the glasses case.

LIST OF REFERENCE NUMBERS

1

eyeglass frame

2

side of the nose

3

nosepiece

4

glasses baking

5

leg

6

hinge part

7

protuberances

8th

Temples

9

spigot

10

tongue

Claims (2)

Three-part spectacle frame, comprising: - a spectacle frame ( 1 ) for the framing of spectacle lenses, wherein the spectacle frame ( 1 ) is made of hardened spring steel as a whole; - a first eyeglass temple ( 8th ), at which there is a first counterpart, which with the spectacle frame ( 1 ) is connectable by means of the first counterpart; and - a second eyeglass temple ( 8th ), on which there is a second counterpart, which with the spectacle frame ( 1 ) is connectable by means of the second counterpart, wherein the spectacle frame ( 1 ): - an upper frame part for the upper-side frame of spectacle lenses; - A lower frame part for the bottom frame of spectacle lenses; - two nostrils ( 2 ); - a nose bridge ( 3 ); - a first spectacle jaw ( 4 ), which is arranged on the left side of the socket parts; and - a second spectacle jaw ( 4 ), which is arranged on the right side of the socket parts, wherein the spectacle jaws ( 4 ) - one hinge part each ( 6 ) exhibit; and - in extension of the socket parts are slit-shaped and thus of two parallel legs ( 5 ), which at their ends to the respective one hinge part ( 6 ) are merged, each having a hinge part ( 6 ) - at its closed end with the respective temple ( 8th ) is connectable; and - two protuberances ( 7 ) up and down, each in a position perpendicular to the closed end of the hinge part ( 6 ) are bent, the protuberances ( 7 ) are each perforated and formed on the respective temple ( 8th ) to receive respective counterpart, wherein the eyeglass temple ( 8th ) in each case in the direction of the counterpart are cut tongue-shaped, that in each case a resilient tongue ( 10 ) arises, characterized in that each one resilient tongue ( 10 ) - is bent so horizontally at the end that this inside on the end of the respective spectacle jaw ( 4 ) presses; - Is formed by means of variation of the bias of the tongue ( 10 ) determine those forces with which the respective eyeglass temple ( 8th ) opens and closes; in which - With different length of the tongue different ways of unfolding and closing the respective temple ( 8th ) are feasible. A three-piece spectacle frame according to claim 1, wherein the counterpart is a pin ( 9 ), which is formed in the two protuberances ( 7 ) lock.

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