DE10159324A1 - Spectacles frame has a hinge structure for the side arms, without screws, with the side arm held between two holding blocks clamped between round wires to give the movement control function - Google Patents

Abstract

The spectacles frame has a side arm (4) held in the rotary axis (Z) between two holding blocks (3,5) clamped axially together in a positive fit, to give a swing movement of 0-90 deg around the fixed axis bolt (6). An axial tension (F) is applied to the side arm through the mounting structure of the holding blocks. They are clamped between two simple round wires (2,8), which are bonded to clamping blocks (1,7). The gap (a) between the drillings (9,10) for the wires through the clamping blocks is smaller than the gap (b) between the axes of the wires, which gives an axial force on the side arm as a movement control function.

Description

The invention relates to a novel glasses hinge developed as a screwless glasses hinge with a gear regulation. A bracket part 4 is held between two axially positively braced holding blocks 3 and 5 . The axial preload F on the bracket is achieved in that the holding blocks are clamped between two simple round wires 2 and 8 . The wires 2 and 8 are clamped under elastic prestressing in the clamping blocks 1 and 7 . Because distance a is smaller than distance b. A gear regulation function is derived from this.

The hinge for the glasses therefore does not require a screw, has a safe gear regulation function and opens up new design options thanks to the open and innovative design on a glasses frame. The hinge parts can also be produced from the known materials for glasses parts. The axis of rotation Z of the hinge can be used either to connect the bracket ( Figure 3) or to connect the cheek piece ( Figure 4) of the frame.

State of the art

There are none from technical applications of eyeglass hinges known screwless solutions, the one according to the invention Preload in an axis of rotation Z by bracing two Provide holding blocks with a round wire construction.

The invention is based on the object of creating a hinge, which fulfills the necessary functions of industrial hinges, has a gear regulation, the implementation of the Movement function should be created via a new technology.

The invention was also based on the idea of conventional hinges e.g. B. by dispensing with a screw, to create a new hinge.

The task is according to the features of claim 1 and solved the features of further claims 2-5.

The design of the hinge according to the invention is based on a six-part hinge. The hinge is particularly characterized in that an eyeglass temple 4 ( figure 1) is axially and radially geometrically fixed between two holding blocks 3 and 5 ( figure 1) and can perform a rotary movement between 0-90 ° around the fixed axle pin 6 .

The movement of the temple is limited by hitting the clamping blocks 7 and 1 ( Figure 1) to the size suitable for glasses.

The assembled holding blocks 3 and 5 are characterized in that they each have a hole for inserting the round wires 2 and 8 .

Furthermore, the assembled holding blocks are characterized in that the central axes of the wires 2 and 8 are at a distance b ( Figure 1) from one another and the ends of the wires 8 and 2 are inserted into bores of the clamping blocks 1 and 7 .

The clamping blocks 1 and 7 are also characterized in that the center axis distance of the bores 9 and 10 has a dimension a and in particular is characterized in that the dimension a is smaller than dimension b.

The bores 11 and 12 of the clamping block 7 have the same geometric relationships.

In order that the individual hinge parts are geometrically determined and cannot be detached from one another, they are characterized in that the wire 2 is firmly connected at the ends to the clamping blocks 1 and 7 by the grits 14 and 17 . Furthermore, the wire 8 is firmly connected to the clamping blocks 1 and 7 by the grits 13 and 16 . The holding block 5 is firmly connected to the wire 8 by the grit 15 and this creates a fixed geometrical certainty of the individual components with respect to one another. A firm connection can also be made by welding or soldering the components at the appropriate points.

The interaction of the components connected to one another is characterized in that the holding blocks 3 and 5 are clamped by the wires 2 and 8 , which have a central axis distance of b in the middle and a central axis distance a at the ends, with the special ratio a smaller than b act on the bracket part 4 with a force F.

The force F is calculated from the material elasticity of the wire materials 2 and 8 , the deflection ratio ε = a / b and the distance c or d. By varying these geometrical quantities, the force F can be defined differently.

The assembled hinge is still characterized, that through the possibility of varying the force F, the gear regulation of the bracket, can be designed weaker for light frames and for stronger stirrups a higher force F is possible and therefore a allows increased gear regulation.

The hinge is further characterized in that the component 4 can be designed on the one hand as a bracket connection ( Figure 3), wherein the bracket 4 can perform a rotational movement in the direction w. The clamping block 1 is firmly connected to the jaw part 20 . The eyeglass rim 21 of the frame is shown schematically. On the other hand, the hinge part 4 can be designed as a jaw connection ( Figure 4). The bracket is attached to the clamping block 7 and moves up to 90 ° in the direction u. The two fundamentally possible connection variants of the movable part 4 as a clamp connection or as a jaw connection create new design possibilities with this novel hinge and, as is known, this is also of particular commercial importance for components in the manufacture of spectacle frames.

In another variant, the wire parts can also be installed at an angle β ( Figure 2), whereby all functions of the variant described above are retained.

In another embodiment, the hinge is characterized in that the wire parts 2 and 8 can be passed through the clamping block 1 ( Figure 5) and the wire ends 30 and 31 can be used directly as the jaw connection of the socket.

The embodiment according to the invention is shown in FIGS. 1-5.

Fig. 1 side view with top view of the hinge

Fig. 2 side view of an embodiment

Fig. 3 3d - view of an embodiment wherein the axis of rotation Z goes directly through the bracket

Fig. 4 3d - view of an embodiment wherein the axis of rotation Z goes directly through the jaw connection

Fig. 5 3d - view of an embodiment in which the wires 2 and 8 can be used directly as a jaw connection for glasses frames.

Claims (5)

1. Screwless spectacle hinge with a gear regulation function, characterized in that a bracket part 4 is held in the axis of rotation Z ( Figure 1) between two axially positively clamped holding blocks ( 3 and 5 ) and that an axial preload F is achieved on the bracket in that the holding blocks between two simple round wires ( 2 and 8 ) are clamped, which in turn are firmly connected to the clamping blocks 1 and 7 and are characterized in that a force F is caused by the ratio a smaller b of the center axis distances of the wires 2 and 8 and this force acts as an axial force on the bracket part 4 and a gear regulation function can be derived therefrom. 2. Hinge according to claim 1, characterized in that the hinge axis Z ( Figure 3) is connected directly to the bracket part 4 and the jaw part 20 is connected to the clamping block 1 . 3. Hinge according to claim 1, characterized in that the hinge axis Z ( Figure 4) is connected directly to the cheek piece and the temple is connected to the clamping block 7 . 4. Hinge according to claim 1 and 2, characterized in that the wires 2 and 8 ( Figure 2) can be connected at an angle β with the clamping blocks 1 and 7 . 5. Hinge according to claim 1 to 3, characterized in that the wire parts 2 and 8 are passed through the clamping block 1 ( Figure 5) and the wire ends 30 and 31 can be used directly as a jaw connection of the socket.