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Title:
TWO-PIECE SPECTACLES FRAME FITTED WITH A FIXING DEVICE FOR A PAIR OF LENSES
Document Type and Number:
WIPO Patent Application WO/2018/153544
Kind Code:
A1
Abstract:
Two pieces spectacles frame fitted with a fixing device for a pair of lenses to the spectacles frame itself, wherein the spectacles frame comprises a rigid upper portion (1) and a lower portion (8) made of deformable material, capable of holding each lens in position by locking, said upper portion comprising two semi-oval arches (A), joined by a bridge (P), each capable of surrounding at least partially each lens (L), said fixing device comprises, on the rigid upper portion (1) of the spectacles frame, on each end (1', 1 ", 11', 11") of said arches (A), a "C" shaped appendix (2, 2') facing the lenses themselves, wherein the lower end portion of the "C" shaped appendix (2, 2') is fitted with a detent (3, 3') and wherein the ends of the lower portion (8) are fitted with a hole (13, 13 '), of rectangular shape or other convenient shape, which permits the locking of said lower portion (8) with the rigid upper portion (1), once the lenses (L) have been inserted in the special ocular space, by inserting of the appendices (2, 2') inside said holes (13, 13').

Inventors:
RATTARO CAMILLO (IT)
Application Number:
PCT/EP2018/000064
Publication Date:
August 30, 2018
Filing Date:
February 19, 2018
Export Citation:
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Assignee:
NEW OPTIC ITALIA S R L (IT)
International Classes:
G02C1/08; G02C1/04
Domestic Patent References:
WO2015128067A12015-09-03
WO2000079332A12000-12-28
Foreign References:
GB2385942A2003-09-03
KR20130093355A2013-08-22
EP0868677A11998-10-07
EP0495768A11992-07-22
EP0895114A11999-02-03
EP1146380A12001-10-17
KR20120007591U2012-11-05
GB2199155A1988-06-29
GB2181859A1987-04-29
Other References:
None
Attorney, Agent or Firm:
SERGIO, Stefano (IT)
Download PDF:
Claims:
CLAIMS

1. Two pieces spectacles frame fitted with a fixing device for a pair of lenses to the spectacles frame itself, wherein the spectacles frame comprises a rigid upper portion (1) and a lower portion (8) made of deformable material, capable of holding each lens in position by locking, said upper portion comprising two semi-oval arches (A), joined by a bridge (P), each capable of surrounding at least partially each lens (L), said fixing device comprises, on the rigid upper portion (1) of the spectacles frame, on each end (Γ, 1 ", 1 Γ, 1 1 ") of said arches (A), a "C" shaped appendix (2, 2') facing the lenses themselves

Characterized by the fact that

• the lower end portion of the "C" shaped appendix (2, 2') is fitted with a detent (3, 3');

• the ends of the lower portion (8) are fitted with a hole (13, 13'), of rectangular shape or other convenient shape, which permits the locking of said lower portion (8) with the rigid upper portion (1), once the lenses (L) have been inserted in the special ocular space, by inserting of the appendices (2, 2') inside said holes (13, 13 ').

2. Spectacles frame as by claim 1, wherein the lower end portion of the "C" shaped appendix (2, 2') is slightly tilted upward.

3. Spectacles frame as by claim 1 , wherein the lower end portion of the "C" shaped appendix (2, 2') has a double detent (15, 15') one facing upwards, the other facing downwards.

4. Spectacles frame as by claim 1 , wherein the lower end portion of the "C" shaped appendix (2, 2') is substantially parallel to the upper portion (7).

5. Spectacles frame as by claim 1 , wherein the lower portion (8) is made of heat deformable plastic material.

6. Spectacles frame as by claim 1 , wherein the arches (A) of the rigid upper portion (1) and the lower portion (8) have, in their internal portion, the one facing the lens (L), an edge (9) which receives a specially shaped groove made on the edge of the lens capable of holding it.

7. Spectacles frame as by claim 1 , wherein the arches (A) of the rigid upper portion (1) have, in their central internal portion (10), a groove (12) and the lower portion (8) has a groove (16), capable of holding a specially shaped lens (L) therein.

8. Spectacles frame as by claim 1, wherein the upper portion (1 ) of the frame in metallic material is made by a laser cutting system.

Description:
Two-piece spectacles frame fitted with a fixing device for a pair of lenses

This invention relates to a spectacles frame fitted with a fixing device for the lenses in which the upper (ciliary) portion is made of metal or other rigid material, for example carbon fibre, while the lower portion of deformable plastic material.

On the market the so-called "Nylor" type glasses are well known and consist of a two-part frame in which the lenses are joined to the rigid, metallic top portion by a wire, preferably nylon, Kevlar or carbon, which is positioned inside a groove that is cut into the edge of the lens. Said wire thread therefore allows one to join and retain the lens to said upper (ciliary) portion. In particular, the wire is joined and locked to the rigid frame by inserting it into suitable pairs of holes made in the end portions of the rigid frame, generally made of titanium alloy.

Said "Nylor" eyewear of the state of art has some drawbacks since its manufacture is rather complex and expensive due to the need to carry out welding of the metal components and twisting of the internal end portions of the frame itself.

However, it is not easy to remove the lens from the fitting frame - nylon wire thread as it is necessary to exert a certain force by the user on the part so that the various operations turn out to be rather delicate and require a certain skill of the operator.

The subject of this invention is to obviate these drawbacks by providing a spectacles frame fitted with a system for hooking the lenses to the frame itself having the characteristics of the attached claim 1. The invention will be better explained by the following description, in which the preferred embodiment of the invention is described, made with the aid of the attached Figures which respectively illustrate:

Figure 1 shows an exploded front view of the frame without lenses according to this invention;

Figure 2 shows a front view of the frame of Figure 1 with the lenses mounted; Figure 3 shows a front view of a similar frame of that of Figure 1 having lenses with a slightly different shape from those of Figure 2;

Figure 4 shows the upper rigid portion of the frame according to a first embodiment of the invention;

Figure 5 shows the enlarged detail M of Figure 4;

Figure 6 shows the enlarged detail V of Figure 4;

Figure 7 shows the upper rigid portion of the frame according to a second embodiment of the invention;

Figure 8 shows the enlarged detail L of Figure 7;

Figure 9 shows the enlarged detail U of Figure 7;

Figure 10 shows the upper rigid portion of the frame according to a third embodiment of the invention;

Figure 1 1 shows the enlarged detail K of Figure 10;

Figure 12 shows the enlarged detail T of Figure 10;

Figure 13 shows the upper rigid portion of the frame according to a fourth embodiment of the invention;

Figure 14 shows the enlarged detail J of Figure 13 ;

Figure 15 shows the enlarged detail S of Figure 13; Figure 16 shows the front view of the lower portion of the frame according to this invention;

Figure 17 shows the top view of the lower portion of the frame of Figure 16; Figure 18 shows the enlarged detail C of Figure 16;

Figure 19 shows the perspective view of the lower portion of the frame of Figure 16;

Figure 20 shows the enlarged detail X of Figure 19;

Figure 21 shows the enlarged detail O of Figure 19;

Figure 22 shows the exploded perspective view of the frame without lenses according to this invention;

Figure 23 shows the enlarged detail Q of Figure 22;

Figure 24 shows the enlarged detail W of Figure 22;

Figure 25 shows four upper portions of the frame according to the four illustrated embodiments obtained from a single piece of plate.

With reference to the aforementioned Figures, the spectacles frame, according to this invention, is of the two-piece type and is fitted with a device of coupling of a pair of lenses to the frame itself.

This frame comprises a rigid upper portion 1 , made of metallic or otherwise rigid material, for example carbon fibre, and a lower portion 8 of plastic material or, in any case, heat deformable material.

The upper portion comprises two semi-oval arches A, joined by a bridge P, suitable for covering each at least partially a lens L.

The fixing device comprises, at both ends 1 ', 1 ", and 1 1 ', 1 1 " of said arches an appendix 2, 2' shaped like a "C" facing towards the same lenses. Preferably, the lower end portion of said "C" shaped part is slightly tilted upward to more securely retain the lenses once mounted as shown in Figures 4-6.

In an additional embodiment shown in Figures 13-15, said appendix 2, 2' is in the form of a "C" facing the lenses, of each eyepiece, but has a detent 3, 3 ' in the lower end portion. In a further embodiment shown in Figures 10-12, said appendix 2, 2' is in the shape of a "C" facing the lenses of each eyepiece, but has a double detent 15, 15', one facing upwards, the other downwards.

In yet another embodiment illustrated in Figures 7-9, said appendix 2 is in the form of a "C" facing the lenses of each eyepiece, with the lower end portion substantially parallel to the upper portion 7.

In a further form of embodiment (not shown), the appendices 2 at the lateral ends and 1 " may be of different useful conformation with respect to the appendices 2' placed at the ends 1 1 ' and 1 1 " of the central area.

The lower portion 8 presents, in a first embodiment (Figures 16-20), in the inner central portion, the one facing the lens, an edge 9 which is to be interlocked with a specially shaped groove formed on the edge of the lens, so as to hold it, once hooked to the upper portion of the frame 1. Said upper portion of the frame also has, in the central inner portion 10 of the arches A, a similar edge which fits with the said groove on the lens to hold it in position.

In a second embodiment (Figures 22-24), the lower portion 8 of the frame has, in the inner central portion, a groove 16 adapted to retain the specially shaped lens therein, once hooked to the upper portion of the frame 1 Said upper portion of the frame also has, in the central inner portion 10 of the arches A, a groove 12, adapted to retain the lens. In all the embodiments indicated, both ends of the lower portion 8 of plastic or other deformable material are fitted with a hole 13, 13' of rectangular shape or other convenient shape (Figures 19, 20, 21 , 23, 24) which allows the engagement of said lower portion 8 to the rigid upper portion 1 of the frame, once the lenses are inserted in the appropriate ocular spaces.

The lower portion 8, made of plastic or other deformable material, is heat-formed according to the shape of the lens to be mounted.

The assembly operation is quite simple since, after heating and locking the lens in the appropriate seat formed in the rigid upper portion 1 of the frame, it is sufficient to join the lower portion 8 by inserting the fixing appendix 2' into the hole 13 ' in a first end of the frame and, therefore, the appendix 2 in the hole 13 of the second end of the lower portion 8 of the frame to obtain a stable and secure constraint of the lens L.

In this way, assembly and disassembly operations are quite simple without the need to use screwdrivers or other tools.

The lenses, however, can be replaced not only with others of the same shape or size but also with lenses of other and different shape or size, by replacing only the lower portion with another of adequate length able to allow the attachment to the portion rigid upper 1 (Figure 3). Therefore, the particular aesthetic requirements of the frame desired by the user are also met either by replacing the lenses with others of a different shape, as mentioned above, or by replacing only the lower portion made of plastic or other deformable material with another of different colour. It should be noted, however, that the upper portion 1 of the frame in metallic material is obtained, for example, by using a laser cutting system and it is therefore possible to obtain two or more pieces of frame using a single sheet of metal (Figure 25).

In this way, it is possible to achieve significant savings in production costs while minimising material waste.

The frame, according to this invention, allows a simple assembly of the components and, in particular, of the lenses which can be easily replaced by interlocking and, therefore, without the use of screws or other fixing devices.