WO2022268343A1

WO2022268343A1 - Pair of eyeglasses comprising longitudinally offset hinges

Info

Publication number: WO2022268343A1
Application number: PCT/EP2021/067752
Authority: WO
Inventors: Alain Miklitarian; Richard Chene; Dominique Delamour
Original assignee: Alain Miklitarian; Richard Chene; Dominique Delamour
Priority date: 2021-06-23
Filing date: 2021-06-28
Publication date: 2022-12-29
Also published as: CN117529686A

Abstract

A pair of eyeglasses (1), extending along a first longitudinal axis (X) from back to front, comprising a front (10), a first lug (11), a second lug (12), a first temple (21) and a second temple (22), which are connected to the first lug (11) and to the second lug (12) by means of a first hinge (31) and a second hinge (32), respectively, the first lug (11) being shorter than the second lug (12) such that the longitudinal positions of the hinges (31, 32) are different in order to reduce the risk of the front (10) being deformed due to a longitudinal compression force.

Description

Pair of glasses comprising joints offset longitudinally

The present invention relates to the field of pairs of glasses.

As is known, with reference to the , a pair of 100 glasses includes VA lenses. VA lenses can be of different types, in particular, sight, fantasy, temporary, presentation, etc. In this example, the pair of glasses is presented in a reference frame (X, Y, Z) in which the X axis extends longitudinally from front to back, the Y axis extends laterally from the left to the right and the Z axis runs vertically from bottom to top.

The pair of glasses 100 comprises a front face 110, extending globally in the plane (Y, Z), comprising two VA lenses as well as a first stud 111 and a second stud 112 which are connected to the front face 110.

The pair of glasses 100 further comprises a right arm 121 and a left arm 122 which are respectively connected to the right post 111 and to the left post 112 via a right joint 131 and a left joint 132. Thus, each

side branch

121, 122 can move between a folded storage position in which the

side branch

121, 122 is substantially aligned with the front face 110 (see ) and an unfolded position of use in which the

side branch

121, 122 is substantially orthogonal to the front face 110. When the pair of glasses 100 is folded, the

branches

121, 122 are placed one behind the other by relative to the axis X. In known manner, a pair of glasses 100 is symmetrical so that the user's comfort is identical on each side of the user's face when wearing the pair of glasses PA.

To protect a pair of PA glasses, it is known to store the latter in a case AND as illustrated schematically in . When stored, an ET case can be compressed into a jacket or bag. During this compression, a longitudinal compressive force F is applied to the

branches

121, 122 in the folded position. More precisely, a longitudinal compressive force is applied according to a pressure point PRESS on the rearmost side branch (here the left branch 122) which is transmitted to the frontmost side branch (here the right branch 121) since the

branches

121, 122 are superimposed. The longitudinal compressive force F is then transmitted to the

studs

111, 112 which deform the front face 110. The front face 110 is then warped and no longer has its original shape. Such a deformation modifies the position of the lenses in their relationship with the gaze of the user, degrading the optical correction provided, deforming it also presenting a certain aesthetic disadvantage. In addition, the axes of the

joints

131, 132 can also be deformed, which disturbs the closing of the

branches

121, 122. This contact between the branches, also called "slippage", has many drawbacks.

This deformation can occur when the pair of PA glasses is stored in any type of ET case (soft or rigid). The deformation can also occur when closing the cover of the ET case which compresses the pair of PA glasses. Such compression also applies when the pair of PA glasses is not stored in an ET case but, for example, slipped into clothing. An immediate solution to solve this drawback would be to make the pair of PA glasses very rigid to avoid its deformation, but this increases its volume and affects the comfort of the user. Such a solution cannot therefore be accepted.

Incidentally, several solutions for bending the temples are known in the prior art making it possible to limit the size of a pair of glasses, but these solutions do not make it possible to limit the deformation of the front face. We know in particular, from the patent application US8192017B2, a pair of glasses whose side branches are articulated with the front face with a clearance of vertical movement so as to allow the branches to be positioned one above the other in storage position. The overlapping of the branches is avoided but the longitudinal compressive force is nevertheless transmitted independently by each of the side branches to the front face which deforms.

There is thus a need for a new pair of glasses whose front face is unlikely to deform, in particular, when the pair of glasses is compressed longitudinally. Another objective of the present invention is not to impact the manufacturing cost of a pair of glasses.

PRESENTATION OF THE INVENTION

une face avant comprenant deux verres,
un premier tenon et un deuxième tenon qui sont reliés à la face avant,
une première branche et une deuxième branche qui sont respectivement reliées au premier tenon et au deuxième tenon par l’intermédiaire d’une première articulation et d’une deuxième articulation.

To this end, the invention relates to a pair of spectacles, extending along a first longitudinal axis from back to front, comprising:

a front face comprising two glasses,
a first tenon and a second tenon which are connected to the front face,
a first branch and a second branch which are respectively connected to the first tenon and to the second tenon via a first articulation and a second articulation.

The invention is remarkable in that the longitudinal positions of the joints are different in order to limit the risk of deformation of the front face following a longitudinal compression force.

Thus, advantageously, the two branches are bent in different planes, at a distance from each other so as to limit or avoid the transmission of a longitudinal compressive force between two branches. The front face thus does not undergo efforts at several points and does not deform even if its rigidity is low. The second branch performs a mechanical damper function and dampens all compression forces. The shifting forces, present in the prior art, are considerably reduced.

Advantageously, the life of the pair of glasses is increased and the front face can be thinned to reduce its rigidity. A thinned front face makes it possible to create pairs of glasses with lower constraints, in particular, temples with original shapes. In the folded position, the pair of glasses is secured in its case. Advantageously, the invention applies equally well to thick and thin front faces, making it possible to avoid deformation.

The positioning of the lenses is durable over time, which improves user comfort. On the industrial level, it is only necessary to modify the length of the tenons, which does not generate any additional cost.

By proposing a pair of glasses having an asymmetrical structure, the Applicant overcomes a widespread prejudice in optics which requires that a pair of glasses have a symmetrical structure to ensure the comfort of the user when wearing the pair of glasses and ensure an aesthetic appearance. Thanks to the invention, the pair of glasses retains its aesthetic appearance in the unfolded position while being resistant to deformation in the folded position. The functionalities of the pair of glasses are improved compared to the prior art.

Preferably, the first tenon is shorter than the second tenon so that the longitudinal positions of the joints are different in order to limit the risk of deformation of the front face.

In one aspect, the first leg is longer than the second leg. According to a preferred aspect, the assembly of the first tenon and of the first branch has the same length as the assembly of the second tenon and of the second branch. Thus, when wearing the pair of glasses, the pair of glasses has a symmetrical aesthetic appearance despite its asymmetrical structure.

According to another aspect, the first branch and the second branch have the same length. Preferably, the first branch and the second branch are directly in contact with the front face. Advantageously, the tenons are offset with respect to the branches and the joints are not in alignment with the branches in the unfolded position. The branches are identical, only the tenons being different.

Preferably, the first branch having a determined thickness, the difference between the longitudinal positions of the joints is greater than the determined thickness so as to avoid contact between the first branch and the second branch. Advantageously, the gap is determined according to the thickness of the first branch in order to avoid any contact. The spacing can thus be tailored to each pair of glasses.

Preferably, the difference between the longitudinal positions of the joints is between 0.5 mm and 10 mm, preferably between 1 mm and 7 mm, more preferably between 2 mm and 5 mm. Such a difference makes it possible to make the pair of glasses robust against deformations while limiting its longitudinal size.

According to a preferred aspect, the first branch is the right branch. Thus, a pair of glasses can be folded intuitively by a right-handed person.

Preferably, the first articulation and/or the second articulation is in the form of a mechanism, comprising an articulation axis, which is connected on the one hand to the front face and on the other hand to the first branch and /or the second branch.

Une étape de pliage de la première branche contre la face avant puis,
Une étape de pliage de la deuxième branche, la deuxième branche étant distante de la première branche en position pliée.

The invention also relates to a method of folding the arms of a pair of spectacles as presented previously, the arms being in the unfolded position, the method comprising:

A step of bending the first branch against the front face then,
A step of folding the second branch, the second branch being remote from the first branch in the folded position.

Alternatively, the invention relates to a pair of spectacles, extending along a first longitudinal axis from back to front, comprising:

The invention is remarkable in that the first tenon is shorter than the second tenon so that the longitudinal positions of the joints are different in order to limit the risk of deformation of the front face following a longitudinal compression force.

PRESENTATION OF FIGURES

The invention will be better understood on reading the following description, given by way of example, and referring to the following figures, given by way of non-limiting examples, in which identical references are given to similar objects. .

The is a schematic representation of a pair of glasses according to the prior art.

The is a schematic representation of the pair of glasses from the in the stowed position in a case during longitudinal compression.

The is a schematic representation of a pair of spectacles according to one embodiment of the invention in the folded position.

The is a schematic representation of the pair of glasses from the when folding it.

The is a schematic representation from above of the pair of glasses of the .

The is a schematic representation of a pair of glasses of the “pierced-clipped” type in the folded position.

The is a schematic representation of a pair of glasses of the "pierced-clipped" type in the unfolded position.

The is an isometric representation of a pair of glasses of the “pierced-clipped” type in the folded position.

The is an isometric representation of a pair of glasses of the “pierced-clipped” type in the unfolded position.

The is a schematic representation of a pair of glasses according to another embodiment in the folded position.

The is a schematic representation of a pair of glasses according to another embodiment in the unfolded position.

It should be noted that the figures expose the invention in detail to implement the invention, said figures can of course be used to better define the invention if necessary.

DETAILED DESCRIPTION OF THE INVENTION

With reference to the , there is shown a pair of glasses P according to one embodiment of the invention.

In this example, the pair of glasses P is presented in a reference frame (X, Y, Z) in which the X axis extends longitudinally from front to back, the Y axis extends laterally from the left to the line and the Z axis extends vertically from bottom to top.

As shown in , the pair of glasses 1 comprises a front face 10 comprising two V lenses. The front face 10 can be of different natures, for example, rimmed with openings 13 for the V lenses ( ), drilled-clipped (Figures 7 to 10) or other. The front face 10 can thus be monobloc as well as modular. Similarly, the front face 10 can be made of various materials (plastic, metal, etc.).

The pair of glasses 1 further comprises a first stud 11 and a second stud 12 which are connected to the front face 10. In this example, the first stud 11 is a right side stud while the second stud 12 is a left side stud . The front face 10 has a pantoscopic angle with respect to the plane (Y, Z) which makes it possible to position the glasses V in an optimal manner. V lenses can be of different types, in particular, prescription, novelty, sunglasses, temporary, presentation, etc.

Still with reference to the , the pair of glasses 1 further comprises a first branch 21 (here a right branch) and a second branch 22 (here a left branch) which are respectively connected to the first stud 11 and to the second stud 12 via a first articulation 31 and a second articulation 32. Thanks to its

articulation

31, 32, as illustrated in , each

branch

21, 22 can move between an unfolded position D in which the

branch

21, 22 extends along the longitudinal axis X and a folded position P in which the

branch

21, 22 extends laterally along the axis Y.

By tenon, we mean an element which connects the front face 10 to the joint which allows the closing of a branch, the tenon being able to be a piece attached to the front face 10 (that is to say subsequently fixed on the front face 10), or a part made from material of the front face 10 (that is to say formed at the same time as the front face 10). The tenon could be independent or integrated into the joint (hinge, mechanism, hinge or other).

According to the invention, the longitudinal positions of the

joints

31, 32 are different in order to limit the risk of deformation of the front face 10 following a longitudinal compression force. Preferably, the first tenon 11 is shorter than the second tenon 12 so that the longitudinal positions of the

joints

31, 32 are different in order to limit the risk of deformation of the front face 10, in particular, of the angle pantoscopic.

The difference in length, along the longitudinal axis X, between the

tenons

11, 12 is advantageous since it allows each

branch

21, 22 to be, in the folded position, in a different plane from the

other branch

21 , 22. In other words, in the folded position, the

branches

21, 22 are only weakly or not in contact as illustrated in . Advantageously, the pantoscopic angle of the front face 10 is protected.

Preferably, the

joints

31, 32 are in the form of a hinge having the same angular range of rotation. Preferably, each joint has a closing stop so as to limit the closing angle and reduce the contact between the branches to reduce the transmission of forces.

In this example, the

articulations

31, 32 allow articulation in the same horizontal plane but it goes without saying that they could be offset vertically, that is to say, articulate respectively in two horizontal planes offset vertically.

According to one aspect of the invention, the first articulation 31 and/or the second articulation 32 is in the form of a mechanism, comprising an articulation axis, which is connected on the one hand to the front face 10 and, on the other hand, to the first branch 21 and/or the second branch 22. Thus, a mechanical joint can in particular be mounted in an attached manner on the front face 10. According to another aspect of the invention, the first joint 31 and / or the second joint 32 is in the form of a simple rod / screw forming the axis of articulation.

In this example, the term articulation designates a branch articulation, that is to say, configured to allow folding of a branch 21/22 with respect to the front face 10.

In the present case, given that the first tenon 11 is shorter, the first branch 21 must be bent before the second branch 22 to avoid any contact. The second branch 22 is thus positioned at a distance behind the first branch 21 as illustrated in . Advantageously, as will be presented below, the second branch 22 performs a shock absorber function by avoiding the full transmission of any longitudinal compression force F to the first branch 21. As a result, any longitudinal compression force F n is more transmitted to various points of the front face 10 which thus avoids deforming.

The

tenons

11, 12 and the

branches

21, 22 of the pair of glasses 1 will now be presented in detail.

According to one aspect of the invention, the first branch 21 is longer than the second branch 22 in order to compensate for the fact that the first tenon 11 is shorter than the second tenon 12. In this example, the whole of the first tenon 11 and the first arm 21 has the same length as the whole of the second tenon 12 and the second arm 22. Thus, in the worn position, the pair of glasses 1 is symmetrical, which provides functions similar to the prior art and optimum comfort for the user.

In this example, the

tenons

11, 12 are aligned with the

branches

21, 22 in the unfolded position. In other words, the

branches

21, 22 are directly in contact with the

tenons

11, 12 in the unfolded position and the

branches

21, 22 are not in contact with the front face 10.

Preferably, each

branch

21, 22 is free of internal articulation. Its manufacture is advantageously traditional, only its length having to be adapted. Preferably again, the pair of glasses 1 comprises only two

joints

31, 32, one associated with each

branch

21, 22.

According to a preferred aspect, the first branch 21 has a determined thickness Δ1, in particular measured at a central point as illustrated in . The difference Δ2 between the longitudinal positions of the

joints

31, 32 is greater than said determined thickness Δ1 so as to avoid contact between the first branch 21 and the second branch 22. Thus, any transmission of force between the second branch 22 and the first branch 21 is limited when the pair of glasses P is folded.

Preferably, the difference Δ2 between the longitudinal positions of the

joints

31, 32 is between 0.5 mm and 10 mm, preferably between 1 mm and 7 mm, more preferably between 2 mm and 5 mm. Such a range of deviations makes it possible, on the one hand, to limit the deformation of the front face 10 and, on the other hand, to limit the axial size of the pair of glasses P. Such a compromise is thus optimal.

In the closed position, the first branch 21 is positioned in a first plane (parallel to XZ) while the second branch 22 is positioned in a second plane parallel and separate from the first plane. The two planes are separated by a difference corresponding to the difference in length between the

tenons

11, 12.

A pair of glasses 1 has been presented in which the first pin 11 (the shortest) is the right pin. Such positioning is advantageous for right-handed people. Of course, the reverse is possible.

There will now be presented an example of implementation of a folding method of the

branches

21, 22 with reference to the . Initially, the

branches

21, 22 are in the unfolded position D, the method comprises a step of folding the first branch 21 against the front face 10 then a step of folding the second branch 22. When the two

branches

21, 22 are in folded position P, the second branch 22 is remote from the first branch 21, which makes it possible to limit the transmission of forces and, consequently, the deformation of the front face 10.

For example, with reference to the , when storing the pair of glasses P in a case ET, a longitudinal compressive force F is applied to the second branch 22 according to a pressure point PRESS without transmission to the most forward lateral branch (here the right branch 21) since the

branches

21, 22 are not in contact. In the manner of a shock absorber, the branch 22, located furthest rear, absorbs the longitudinal compression force F which is not transmitted to several points of the front face 10 and avoids its deformation.

Thanks to the invention, the life of a pair of glasses P is increased by reducing the risk of deformation of the front face 10. The same applies to the axes of the

joints

31, 32 which are not modified. The position of the V lenses remains optimal, which offers the user long-lasting optical correction. Finally, from an industrial point of view, the cost of such a pair of glasses 1 is of the same order as that of a conventional pair of glasses, that is to say, with

joints

31, 32 having the same longitudinal position.

In addition, the invention applies to any type of articulation, for example, a conventional hinge, with hinges or allowing over-opening.

With reference to FIGS. 7 to 10, the invention also applies to a pair of glasses of the "clipped breakthrough" type in which the front face 10 comprises only

studs

11, 12 fixed to the lenses V and a central bridge fixed to the lenses V. That is, for such a front side, V glasses are not mounted in circles. The invention thus applies to any type of front face 10.

Referring to Figures 11 and 12, the invention also applies to a pair of glasses 1 whose

joints

31, 32 are offset from the

branches

21, 22 in the unfolded position. The

joints

31, 32 do not extend in the extension of the

branches

21, 22 in the unfolded position but are offset between the

branches

21, 22 in order to form offset joints allowing the

branches

21, 22 to be directly in contact with the front face 10 in the unfolded position. This advantageously makes it possible to keep

branches

21, 22 of identical lengths by shifting the

joints

31, 32 towards the center of the pair of glasses 1, that is to say, towards a plane PH orthogonal to the front face 10 which divides approximately symmetrically ( ). The

branches

21, 22 are identical, which facilitates industrialization.

Claims

Pair of spectacles (1), extending along a first longitudinal axis X from back to front, comprising:

a front face (10) comprising two lenses (V),

a first stud (11) and a second stud (12) which are connected to the front face (10),

a first branch (21) and a second branch (22) which are respectively connected to the first tenon (11) and to the second tenon (12) via a first articulation (31) and a second articulation (32 ),

pair of glasses characterized in that the longitudinal positions of the joints (31, 32) are different in order to limit the risk of deformation of the front face (10) following a longitudinal compression force.
Pair of spectacles (1) according to claim 1, in which the first stud (11) is shorter than the second stud (12) so that the longitudinal positions of the joints are different.
Pair of spectacles (1) according to one of Claims 1 to 2, in which the first arm (21) having a determined thickness (Δ1), the difference (Δ2) between the longitudinal positions of the joints (31, 32) is greater than the determined thickness (Δ1) so as to avoid contact between the first branch (21) and the second branch (22).
Pair of spectacles (1) according to one of claims 1 to 3, in which the difference (Δ2) between the longitudinal positions of the joints (31, 32) is between 0.5 mm and 10 mm, preferably between 1 mm and 7 mm, more preferably between 2 mm and 5 mm.
Pair of spectacles (1) according to one of Claims 1 to 4, in which the first arm (21) is longer than the second arm (22).
Pair of spectacles (1) according to claim 5, in which the assembly of the first stud (11) and of the first arm (21) has the same length as the assembly of the second stud (12) and of the second arm ( 22).
Pair of spectacles (1) according to one of Claims 1 to 6, in which the first arm (21) and the second arm (22) have the same length.
Pair of spectacles (1) according to claim 7, in which the first arm (21) and the second arm (22) are directly in contact with the front face (10).
Pair of spectacles (1) according to one of Claims 1 to 8, in which the first arm (21) is the straight arm.
Pair of spectacles (1) according to one of Claims 1 to 9, in which the first articulation (31) and/or the second articulation (32) is in the form of a mechanism, comprising an articulation axis, which is connected on the one hand to the front face (10) and on the other hand to the first branch (21) and/or the second branch (22).
Method of folding the arms (21, 22) of a pair of spectacles (1) according to one of Claims 1 to 10, the arms (21, 22) being in the unfolded position, the method comprising:

A step of folding the first branch (21) against the front face (10) then,

A step of folding the second branch (22), the second branch (22) being remote from the first branch (21) in the folded position.