JPS60244923A - Metal frame of a pair of spectacles - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a metal eyeglass frame of the type comprising a facepiece having a pair of lens-holding edges, and a hinge fixing protrusion fixed to an outer portion of each lens-holding edge. Regarding.

In the case of metal eyeglass frames of the type mentioned above, especially flexible eyeglass frames, the most important part is the connection of the facepiece with the above-mentioned protrusion.

In the conventional method, this protrusion is connected to the lens retaining edge by welding, but this method heats up this part of the facepiece and risks permanent deformation of this part during handling of the glasses. .

Past research by Ganto Toyama suggests the following processing method. That is, to attach the protrusion, the lens holding edge associated with the part is cut, the cut end of the edge is fixed to a pair of thin plates by molded connection, and the thin plates are tightened.
This is a method of forming a hinge dust for the temple and closing the lens holding edge at the same time.

However, this processing method also has drawbacks. In particular, since the thin plates must be tightened together, it is possible to adjust for slight machining errors that occur when cutting and/or chamfering the lens, without changing the dimensions of the lens holding edge. No. Therefore, there is a waste of processing the lens, or the lens cannot be firmly attached to the eyeglass frame.

The present invention is to provide a metal eyeglass frame that overcomes the above-mentioned drawbacks in the prior art.

The above characterized in that each projection is constituted by a unitary block, each edge associated with the projection being cut to form two arms, one fixed to the projection and the other connected to the projection by a screw fastener. A type of metal frame makes it possible to overcome the above drawbacks.

The features and advantages of the invention will become more apparent from the following detailed description of three preferred embodiments. However, these embodiments are given as examples, and the implementation of the metal frame for eyeglasses according to the present invention is not limited to these embodiments.

Referring to the drawings, a spectacle frame, designated generally at 1, comprises a facepiece 2 having an edge 3 surrounding an associated lens 4. FIG.

A temple 5 is hinged to this facepiece by a projection 6 fixed to the edge 3.

Each protrusion 6 is fixed to the outer part of the facepiece and is approximately 3
Consists of a single block that is ridge-shaped and extends in the longitudinal direction. Cut each edge 3 so as to relate to each projection 6 into two arms 3a.

3b, and its ends 10a, 10b are bent to form an eyelet.

Next, the eyelets 10a, 10b are bent in a plane substantially perpendicular to the corresponding arms 3a, 3b on the edges.

A hinge piece 11 for the corresponding temple 5 is provided at one end of the protrusion 6. The butterfly seat 11 extends in the longitudinal direction of the protrusion and is disposed at an appropriate interval so that it can be fitted into the hinge end of the conventionally shaped temple 5, and facing side posts 11a, 1
It is formed between 1b.

A screw 13 passes through this side post 11a, Ilb and forms a hinge pin for the hinge end 12.

The projection 6 also forms a shoulder 14 on the outer part of the facepiece 2 adjacent to the side posts 11a, 11b. This shoulder 14 extends parallel to the axis of the screw 13 and constitutes a stop for the opening of the temple 5.

Near the opposite longitudinal end of the hinge 11, a groove 17 with a substantially circular cross section is formed in the protrusion 6, and the axis of the groove 16 is approximately perpendicular to the protrusion and parallel to the hinge axis of the hinge 5. It is. A screw hole 1 concentric with the groove 16 is provided in the other part of the protrusion.
7 is provided, and an eyelet 10 is provided in this screw hole 17.
Insert the screw 18 passing through a and 10b.

More specifically, an annular lip body 21 is provided in the middle portion of the groove 16.
The annular lip body 21 provides a substantially trapezoidal cross section near the bottom of the groove.

While the protrusions are also engaged with the corresponding edges of the N#R frame 1, the eyelets 10a as shown in FIGS.
is positioned at the bottom of the groove 16, the lip body 21 is expanded in diameter,
The protrusion 6 is fixed to the arm 3a of the edge 3.

On the side facing the edge 3 of the protrusion, a groove 19 and a hole 27 are provided which extend beside the groove 16 and substantially parallel to the axis of the groove 16. Groove 19 opens into groove 16 and arms 3a, 3b of edge 3
to accommodate.

FIG. 6 shows details of a first variant of the spectacle frame according to the invention, identical parts being designated with the same reference numerals as before.

The difference between this variant and the previously described embodiment is that the end 26 of the arm 3a of the edge 3 is bent at right angles and inserted into the hole 27 of the projection 25 passing through the projection longitudinally from the groove 19. It is a point.

The end 26 of the arm 3a is held in the hole 27 by pressing, gluing or any other similar method.

In this case, the hinge member 16 is not provided with a lip body, since it is only necessary to fit the bent eyelet-like end of the arm 3b and hold it with the screw 18.

FIG. 7 is an exploded perspective view of seven eight beads of a spectacle frame, generally designated 30. The face piece 30 has a pair of lens holding edges 3 having protrusions 32 on the outer side thereof.
1 and a central bridge 33 connecting these edges. The projection 32 is of the type shown in FIGS. 2-5, and structural details can be understood with reference to the description of these figures.

Each edge 31 is a pair of curved bodies 31a with both ends bent.
, 31b, and the curved body 31a has an eyelet 34.
a, 35a and the curved body 31b have eyelets 3'4
b, 35b are formed respectively.

eyelets 34a, 34b and eyelet 35a,
The shape of 35b is the same as described above for projection 6.25.

The bridge 33 has seat portions at both ends 33a and 33b. This seat has exactly the same shape as described above with respect to the projection 6.25, so that reference is made to the above description for details of its construction.

The eyeglass frame according to the present invention is constructed as follows.

First, the protrusion 6.25 is fixed to the arm 3a of the corresponding lens holding edge. This fixation was initially done with eyelet 10.
Place the lip body 21 on top a, then insert the end 26 into the hole 27.
This is done by pushing it inside and fitting it. The lens 4 is then fitted into the corresponding edge 3, and the screw 18 is passed through the eyelet 10b and then fitted into the hole 17.The screw 18, when tightened, acts as a fixture for the arm and 14 can be tightened around the edge 3.

In this way, the edge of the lens 4 with some play in the side 3 can be eliminated without changing the quality of the long joint between the protrusion 6.25 and the temple 5.

The same adjustment is possible with a frame using the facepiece shown in FIG. In this case, the protrusion 32 is of the conventional type, and the play between the lens and the edge 31 is adjusted at the end 3.
This is done by adjusting the connection state between 4a, 34b and the bridge 33.

[Brief explanation of drawings]

1 is a perspective view of a metal eyeglass frame according to the invention; FIG. 2 is an enlarged perspective view showing details of FIG. 1; and FIGS. 3 and 4 are two successive stages of attaching the protrusion to the frame of FIG. A schematic side view showing. FIG. 5 is a perspective view of the projection of said figure fixed to the corresponding edge, particularly showing the temple of the spectacles; FIG. 6 is a perspective view of a variant of the projection of said figure; and FIG. 7 is a perspective view of the projection according to the invention. It is a perspective schematic diagram which shows another modification of a frame. Figure 5

Claims (1)

[Scope of Claims] 1. A facepiece having a pair of lens-retaining edges provided with hinged protrusions on the outside, each protrusion being constructed from a single block, and each protrusion in relation to the protrusion. A metal eyeglass frame characterized in that the edges are cut to form two arms, one of which is fixed to the protrusion and the other connected to the protrusion with a screw fastener. 2. A facepiece having a pair of lens-retaining edges with hinged protrusions on the outside;
a bridge between the edges, in relation to the protrusion;
1. A metal eyeglass frame, characterized in that each edge is cut to form two arms, one of which is fixed to the projection and the other connected to the projection by a screw fastener.