JPS6218898B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a type of eyeglass frame in which the front consists of a pair of annular lens frames made of metal wire, and in which the base of a string is pivotally attached to the outermost part of each lens frame. Regarding.

For metal frames with metal wire fronts, especially stainless steel, it is desirable that the metal wire has maximum elasticity so that repeated openings of the strings do not result in bending.

In the known frame, the metal string is fixed to the front lens frame by welding. Welding inevitably heats and dulls the areas of the metal wire where elastic properties are most desirable. Therefore, regions of the metal wire made in this manner are susceptible to undesirable permanent deformations such as the aforementioned curvature.

An object of the present invention is to provide a frame for eyeglasses that does not cause the above-mentioned problems.

A frame for eyeglasses according to the present invention includes a string, a lens frame whose outer part is cut at the same height as the string and has a pair of joint parts therein, and a groove for receiving each of the joint parts of the lens frame. and a pair of small plates having a string holder for receiving the root part of the string, and the paired small plates of the string are fixed to fix the string connecting part to the string. and a fixing means for holding the base of the string to the base, and the base connecting part connects the outer part of the lens frame, an extension extending laterally outward from the outer part of the lens frame, and a part of the outer part extending from the extension part to the outer part. and distal end portions extending in the direction of extension and are arranged opposite each other, said platelets having said grooves facing each other and configured to receive said elongation portion and for receiving said end portion. It has pores. It consists of

When the eyeglass frame is configured in this way, the lens frame and the string are connected purely mechanically without welding, so that no heat is generated in the metal wires that make up the lens frame. Therefore, the metal wire will not be tempered and will maintain favorable elastic properties that avoid permanent deformation caused by use after the string is fixed to the lens frame.

Hereinafter, the present invention will be described based on embodiments with reference to the drawings.

In FIG. 1, a spectacle frame consisting of a front 10 and a pair of strings 12 is shown. The front 10 is mainly
It is formed of a pair of annular lens frames 14 made of metal wire, particularly stainless steel, for receiving lenses. A pair of lens frames 14 includes a bridge 16 and a bar 1.
8 and are connected in a well-known manner.

The strings 12 are each connected to the outer portion of the corresponding lens frame 14 by means 20, the structure of which will be described below with reference to the drawings.

In FIG. 1, arrow F indicates the direction of the force acting on string 12 to open it when wearing glasses. This force is applied to the lens frame 14 to which Chimoto 20 is connected.
It is related to area A of . In conventional fronts, since the string is welded to the lens frame, region A is the weakest and is the most susceptible to annealing during welding of the string and, as a result, permanent deformation.

Referring to FIG. 2, Jiyuan 20 is, respectively,
It consists of a set of overlapping metal platelets 22, for example of stainless steel. These two small plates 22 are connected to each other by screws 25. Another screw 25' pivots the corresponding string 12 to the base 20. This will be discussed in detail below.

As shown in FIG. 3, the outer ends of the lens frames 14 are cut at right angles to the corresponding strings 12, and the cut ends, which are the connecting parts 24, are connected to the outer ends of the lens frames 14. The extending portion 30 is bent outward at a substantially right angle, and the lens frame 14 is connected from the extending portion to the extending portion 30 .
The distal end portion 32 is bent at a substantially right angle in the direction of , forming a U-shape. The U-shaped front coupling parts 24 formed on the same lens frame 14 face each other at the extension part 30.

A transverse groove 26 is formed in each small plate 22, and a through hole 28 passes through the small plate 22 from the bottom surface of the groove 26.

The lens frame 1 is
4, the distal end 32 of the Jiyuan coupling 24 is passed through the hole 28 and the extension 30 is inserted, as shown in FIG.
into the horizontal groove 26.

Further, as shown in FIG. 5, the horizontal groove 26 of the small plate 22
A swage 34 is provided on the edge of the frame to retain the extension 30 of the corresponding frame edge 24 in the transverse groove, even if the two platelets 22 are not fixed to each other by screws 25.
The Jiyuan joint 24 is prevented from separating from the small plate 22.

As shown in FIG. 5, Chimoto's platelet 22 has a thinned portion 36 facing its counterpart. Two holes are formed in each pair of platelets 22. The holes in the lower plate 22 are screw holes 38a, 40a.
hole 3 formed in the upper plate 22
8b and 40b are smooth holes without screws.

The holes 38a and 38b are used to fix the two upper and lower plates 22 to each other by screwing the screws 25 into them. When the screw 25 is tightened, the end 24 of the metal wire lens frame engages with the horizontal groove 26 and the hole, so the end 24
As a result, the lens frame 14 is firmly fixed to the base 20. At the same time, this allows the lens frame 14 to be mounted stably at all times.

When the small plates 22 are tightened, grooves for receiving the thin ears 42 formed at the bases of the strings 12, that is, string holding portions, are formed between the thin portions 36 of each pair of small plates 22. A hole is also formed in the ear 42, and when the ear 42 is inserted into the groove between the thin parts 36 and the screw 25' is passed through the smooth hole 40b and the hole in the ear 42 and screwed into the screw hole 40a, the string 12 is It is pivoted to Chimoto 20.

In the spectacle frame constructed as described above, the lenses can be easily replaced by simply loosening the screws 25, and the strings 12 can be replaced by simply removing the screws 26.

[Brief explanation of the drawing]

1 is a perspective view of an embodiment of the eyeglass frame according to the present invention, FIG. 2 is an enlarged perspective view of the main parts of the embodiment of FIG. 1, and FIG. 3 is an exploded perspective view of FIG. Figure 4 is a perspective view showing the state in which the end of the lens frame is attached to the small plate of Chimoto from the state shown in Figure 3, and Figure 5 is a longitudinal cross-section of the lower plate of Chimoto along the line - in Figure 4. The plan view and FIG. 6 are perspective views showing the attachment relationship between the chigen and the strings. 10...Front, 12...Strings, 14...Lens frame, 16...Bridge, 18...Bar, 20...
...Chimoto, 22...Small plate, 24...Chimoto joint, 2
5, 25'...Screw, 26...Horizontal groove, 28...
Hole, 30...Extension part, 32...Terminal part, 34...
Caulked part, 36... Thin wall part, 38a, 40a...
Screw holes, 38b, 40b...holes, F...arrows.

Claims (1)

[Scope of Claims] 1. A string, and a lens frame in which an outer portion at the same height as the string is cut to form a pair of connecting portions therein;
A pair of small plates each having a groove for receiving a respective string joint part of the lens frame and a string holding part for receiving a base part of the string, and a pair of small plates for the string. A frame for eyeglasses comprising a fixing means for fixing the string to the string and holding the root part of the string to the holding part of the string, wherein the string is fixed to the string. are formed in a U-shape by the outer part of the lens frame, an extension part extending laterally outward from the extension part, and an end part extending from the extension part in the direction of extension of the outer part, and are arranged opposite to each other; A frame for eyeglasses, characterized in that the platelets have the grooves facing each other and configured to receive the extension and a hole for receiving the end. 2. The frame for eyeglasses according to claim 1, wherein a caulking portion is provided at the edge of the groove of the small plate for holding the extension portion within the groove. 3. The eyeglass frame according to claim 1 or 2, wherein the fixing means is a screw. 4. The string holding portion is a groove portion that receives an ear formed at the base of the string between the pair of small plates constituting the string and pivots the ear to the string. A frame for eyeglasses according to any one of claims 1 to 3.