FR2815726A1 - Frame for spectacles has curved upper frames to hold interchangeable lenses - Google Patents

Abstract

The frame for spectacles has connecting zones formed in the edges of the lenses, each zone being non-linear and having a bisector. The frame supports clip plates (21,31) to receive the connecting zones on the lenses, at least one of the plates being formed in a movable frame section (5). A wedge assembly (6) holds the connecting surfaces together.

Description

<Desc / Clms Page number 1>

 The present invention relates to a pair of glasses with interchangeable lenses, in particular a pair of sports glasses.

interchanger les verres d'une paire de lunettes selon le temps qu'il fait. It is useful, in general, to be able to interchange the glasses of a pair of glasses, for example to interchange transparent glasses with tinted glasses, or corrective glasses with non-corrective glasses, and vice versa. It can also be useful, when practicing certain sports, in particular skiing, to be able to

interchange the glasses of a pair of glasses depending on the weather.

 There are pairs of glasses allowing such interchange. However, the existing models do not always allow this interchange to be done in a simple and easy manner, and do not always have a simple and easy structure to manufacture.

 There are also pairs of glasses comprising branches which can be maintained in the deployed position and which can be recalled to their folded position when they are caused to leave this deployed position. Likewise, existing models with this characteristic are not always very simple and easy to manufacture.

 In addition, it is frequent that pairs of existing glasses have branches which either do not ensure a perfect maintenance of the pair on the head of the user, or include ends relatively irritating for the ears.

 The present invention aims to remedy all of these drawbacks.

 Its main objective is to provide a frame allowing quick and easy interchange of lenses while retaining a particularly simple and easy to manufacture structure.

 Another objective of the invention is to provide a pair of glasses, the arms of which are maintained in the deployed position and are returned to their folded position when they are brought to leave this deployed position, while retaining a simple pair of glasses structure. and easy to make.

 An additional objective of the invention is to provide a pair of glasses, the branches of which ensure perfect support of the pair on the head of the user, without being irritating to the ears.

<Desc / Clms Page number 2>

 The pair of glasses concerned comprises, in a manner known per se, a frame, glasses and means allowing the interchange of these glasses.

 According to the invention, the means for interchanging a glass comprise: - assembly zones arranged in the lateral edges of the glass, each zone not being straight and having at least one bevel; - Reception areas of these assembly areas, arranged on the frame and having shapes complementary to that of said assembly areas, at least one of these reception areas being arranged in a movable part relative to the frame, this mobility takes place between a position for approaching the reception zones, in which these reception zones are engaged closely around the assembly zones and thus retain the lens on the frame, and a position for moving away from the reception zones, in which at least one of these reception areas is erased beyond the corresponding lateral edge of the glass and allows the engagement of this glass between the reception areas or the release of this glass from these reception areas, and - at least a holding means acting on at least one aforementioned moving part, in order to normally maintain the reception zones in the approaching position.

 The interchanging of a lens is thus carried out simply and quickly by moving said moving part against said holding means, by releasing the lens present on the frame then by engaging a replacement lens between the receiving zones and by acting so that said holding means returns said movable part to the position of approaching the reception zones.

 Preferably, said holding means is constituted, for each movable part, by a pad of elastically compressible material, placed between the movable part and the frame or between this movable part and a fixed part placed on the frame, this pad normally maintaining the moving part in position for approaching the receiving zones and being compressed when the moving part is brought into position away from these receiving zones.

<Desc / Clms Page number 3>

 The structure of the pair of glasses is thus particularly simple.

 According to one embodiment of the invention, in this case: - the frame comprises a nose piece fixed on it, whose lateral edges form two areas for receiving the glasses, and lateral openings for mounting said moving parts and said pads of elastically compressible material; each opening has a portion of larger section and a portion of smaller section, the latter being oriented parallel to the direction of movement of the moving part; - Each movable part has, for its mounting on the frame, a mushroom-shaped stud, the head of which has a dimension less than said part of larger section but greater than said part of smaller section, and whose body has a dimension smaller than said portion of smaller section, so that this stud can be engaged in said opening at the level of said portion of larger section then its body can be engaged to slide in said portion of smaller section, said head taking then press against the frame and thus retaining the movable part on this frame; - Each pad also has a mushroom-shaped stud, the head of which has a dimension greater than said portion of larger section and the body of which has a dimension corresponding substantially to this portion of larger section, this stud being able to be engaged in force in the part of the largest section, which causes the deformation of the head of the stud, until this head opens through the opening and regains its original shape, thus locking the buffer on the frame.

 The frame may advantageously have, for each lens, a fixed support piece, placed so that the pad is located between it and the movable piece, this fixed support piece defining a support surface for the pad.

 This bearing surface can thus be optimally shaped for the deformation of the tampon.

 The pair of glasses according to the aforementioned embodiment then advantageously comprises:

<Desc / Clms Page number 4>

 - At each of the aforementioned lateral opening, a second part of smaller section, located opposite the first part of smaller section relative to the part of larger section, and - each fixed support piece comprises a mushroom-shaped stud, the head of which has a dimension less than said part of larger section but greater than said second part of smaller section and the body of which has a dimension less than said second part of smaller section, so that this stud can be engaged at the part of the largest section then its body can be engaged in said second part of the smallest section, said head then bearing against the frame and thus retaining this fixed support piece on this frame .

ouverture étant conformée de manière à ce que la bande puisse être engagée sur ledit bec d'accrochage et étant positionnée de telle sorte que cette bande soit étirée lorsqu'elle est accrochée à ce bec. According to one possibility, - the frame comprises, at the level of the pivoting zone of each branch, a pivot for guiding this branch in pivoting and a lug forming a stop; - Each branch includes a light for its engagement on the pivot, oriented longitudinally and allowing a longitudinal sliding of the branch on this pivot, and a housing suitable for receiving said lug in it; said sliding takes place between a position of engagement of the lug in the housing, which allows the branch to be held in the deployed position, and a position of release of the lug from the housing, allowing the branch to rotate around the pivot for folding this branch; each branch further comprises a hooking beak arranged on its internal edge, behind said pivot; - The pair of glasses comprises two strips of elastic material longitudinally stretchable, each of these strips being located at a pivot zone of a branch; each strip is connected to the frame by one end, at the internal face of this frame, and has an opening at its other end, this

opening being shaped so that the band can be engaged on said hooking beak and being positioned so that this band is stretched when it is hooked to this beak.

 When the branch is in the deployed position, the strip extends along the internal edge of the branch and the elastic return of this strip normally keeps the branch engaged on the lug. When the branch

<Desc / Clms Page number 5>

 is released from around the lug, this same elastic return causes the branch to pivot towards its folded position.

 Advantageously, each housing is connected, on the internal side of the branch, to a rounded zone forming a cam capable of sliding on the lug.

 The passage of the branch from the deployed position to the position from which the folding of this branch begins is thus done by simple sliding, caused by exerting lateral pressure on the branch. It is therefore not necessary to operate a substantially longitudinal traction on the branch in order to release the latter from around the lug.

 According to a preferred embodiment of the invention, - said pivot for guiding a branch and said lug forming a stop are arranged on said fixed support piece, and - each elastic band of longitudinally stretchable material forms a body with the pad constituting said holding means.

 The number of parts constituting the pair of glasses according to the invention is thus very reduced.

 Advantageously, each branch has a rectilinear shape and receives, at its free end, a support piece intended to bear against the mastoid bone of the skull when the pair of glasses is worn.

 For a good understanding, the invention is again described below with reference to the appended diagrammatic drawing representing, by way of nonlimiting example, a preferred embodiment of the pair of glasses which it relates to.

 Figure 1 is an exploded perspective view, only one of the glasses and only one of the branches being shown; Figure 2 is a partial side view, in the assembled state, of this pair of glasses; Figure 3 is a detail view, in exploded perspective; Figure 4 is a partial view, in section along the line IV-IV of Figure 2, and Figure 5 is a view similar to Figure 4, in another position of one of its branches.

<Desc / Clms Page number 6>

 The figures represent a pair of glasses 1 with interchangeable glasses 2, in particular a pair of sports glasses.

 This pair of glasses 1 comprises, in addition to the lenses 2, a frame 3, a nasal support piece 4, two moving parts 5, two pieces 6 made of elastically deformable material, two support pieces 7, two arms 8 and two end pieces of branches 9.

 Each glass 2 has rounded side edges 2a, 2b and, as appears in FIGS. 4 and 5, a double bevel arranged at the level of its entire periphery. The bevelled faces form, at the edges 2a, 2b, areas of assembly of this lens 2 with the rest of the pair of glasses 1.

 The frame 3 comprises a nasal support zone 10, pierced with a hole 11, two arches 12 and two temporal zones 13, each of which comprises an opening.

 As shown in Figure 1, this opening has a portion 15 of larger section, having a circular shape, and portions 16,17 of smaller section, having elongated shapes. Part 16 located on the side of zone 10 is oriented substantially in the direction of this zone 10.

 The nasal support piece 4 has a bottom edge 20 in inverted "U", suitable for a support grip on the top of a nose, and comprises two rounded lateral edges 21. Each of these edges 21 has a curved groove , with a "V" cross section, the curvature and cross section of which correspond closely, in negative, to the curvature and the cross section of the internal edges 2a of the glasses 2. These grooves thus constitute zones for receiving said zones of assembly.

 The part 4 also comprises a stud 25 in the form of a mushroom, projecting from its rear face, that is to say from its face turned towards the side of the user's face when the pair of glasses 1 is worn. The head 26 of this stud 25 has a diameter greater than that of the hole 11 and is elastically deformable so as to be able to be engaged through this hole 11. The body 27 of the stud 25 has a diameter corresponding substantially to that of the hole 11 and has a length such that the head 26 is located slightly beyond the rear face of the frame 3 when the rear face of the part 4 is in contact with the

<Desc / Clms Page number 7>

 front face of the frame 3. This stud 25 thus allows the part 4 to be mounted on the frame 3 by snapping into the hole 11.

pour la pièce 4, la courbure et la section transversale de cette rainure 31 correspondent étroitement, en négatif, à la courbure et à la section transversale des bords externes 2b des verres 2. Each movable part 5 has two branches 30 giving it a "U" shape. These two branches 30 jointly delimit a curved groove 31, with a "V" cross section. The same way as

for part 4, the curvature and the cross section of this groove 31 correspond closely, in negative, to the curvature and the cross section of the outer edges 2b of the glasses 2.

On the side opposite the branches 30, the part 5 has a straight edge 32.

 The part 5 also has a stud 33 in the form of a mushroom, projecting from its rear face. The head of this pad 33 has a diameter slightly less than the diameter of the part 15 but greater than the width of the part 16, while the body of this pad 33 has a diameter slightly less than the width of the part 16 and a length slightly greater than the thickness of the frame 3.

 This stud 33 can be engaged through part 15 and its body can be engaged inside part 16 and be guided in sliding therein. Following this engagement, the head of the pad 33 retains the part 5 on the frame 3.

 Each part 6 comprises a portion 40 forming a buffer, a portion 41 forming a mounting stud and a portion 42 forming a strip. This part 6 is produced by molding an elastic material, in particular a polymer, such that the portion 40 can be compressed transversely and that the portion 42 can be stretched longitudinally.

 The portion 40 has a substantially rectangular shape.

 The portion 41 is substantially cylindrical. It has a diameter corresponding substantially to that of the part 15 and has a length equal to the added thicknesses of the mount 3 and of the head of the stud 33. On the side opposite to the portion 40, the portion 42 forms a rim around the portion 41, suitable for bearing against the rear face of the head of the pad 33.

 The portion 42 has a determined length and has, on the side of its free end, an opening 43 arranged in a determined location, as will be explained below.

<Desc / Clms Page number 8>

 Each part 7 comprises a straight edge 45 and a stud 46 respectively similar to the straight edge 32 and to the stud 33 of the piece 5.

On the side opposite the edge 45, the part 7 comprises a recess 47 allowing the pivoting mounting of a branch 8, as is more particularly visible in FIG. 3. At the level of this recess 47, the part 7 comprises a pivot 48 guide the pivoting of the branch 8 and a lug 49 forming a stop.

 Each branch 8 comprises a lumen 50, a housing 51, a rounded surface 52 and a hooking spout 53.

 The light 50 is oriented longitudinally and allows a longitudinal sliding of the branch 8 on the pivot 48.

 The housing 51 is suitable for receiving the lug 49 in it and is connected, on the internal side of the branch 8, to the rounded surface 52, which forms a cam capable of sliding on the lug 49.

 The attachment spout 53 is arranged beyond the lumen 50. It delimits with the branch 8 an insertion cavity 55, in which the portion 42 can be engaged, thanks to the opening 43 which the latter comprises, this opening 43 being positioned so that the portion 42 is stretched when this engagement is achieved.

 Each branch 8 has a generally elongated shape, without bending at its free end. The tip 9 which it receives on this free end forms a support piece 60, of oval shape, intended to bear against the mastoid bone of the skull when the pair of glasses 1 is worn.

 The interchange of a lens 2 can be carried out simply and quickly by moving the corresponding part 5 against the elastic force of the portion 40 forming a buffer, by releasing the lens 2 present on the frame 3 and then engaging a lens. replacement between the reception areas of parts 4 and 5. The pair of glasses 1 nevertheless retains a particularly simple structure and easy to manufacture.

 The portion 42 allows the branches to be maintained in the deployed position (FIG. 4) and for them to be returned to their folded position (FIG. 5) when they are brought to leave this deployed position, while also keeping the pair of glasses 1 a structure that is simple and easy to manufacture.

<Desc / Clms Page number 9>

 The parts 60 make it possible to ensure perfect maintenance of the pair 1 on the head of the user, without being irritating to the ears.

 As appears from the above, the invention provides a pair of glasses with interchangeable lenses, in particular a pair of sports glasses, having numerous advantages compared to pairs of glasses approved in the prior art, and overcoming the disadvantages of these.

 It goes without saying that the invention is not limited to the embodiment described above by way of example, but on the contrary embraces all of the variant embodiments thereof. Thus, each hoop 12 can receive a piece 65 for receiving the upper edge of the corresponding glass 2, as shown in FIG. 2.

Claims (9)

 CLAIMS 1-Pair of glasses (1) with interchangeable glasses (2), comprising a frame (3), glasses (2) and means allowing the interchange of these glasses (2), characterized in that the means of interchange of a glass (2) comprise: - assembly zones arranged in the lateral edges (2a, 2b) of the glass (2), each zone not being straight and having at least one bevel; - zones (21,31) for receiving these assembly zones, arranged on the frame (3) and having shapes complementary to that of said assembly zones, at least one of these reception zones being arranged in a room (5) movable relative to the frame (3), this mobility taking place between a position of approximation of the reception zones, in which these reception zones are engaged closely around the assembly zones and thus retain the lens (2) on the frame (3), and a position away from the reception areas, in which at least one of these reception areas is erased beyond the corresponding lateral edge (2a, 2b) of the lens (2) and allows the engagement of this glass (2) between the reception areas, or disengagement of this glass (2) from these reception areas, and - at least one holding means (6) acting on at least one moving part ( 5) above, to normally maintain the reception areas in pos reconciliation.  2-pair of glasses according to claim 1, characterized in that said holding means (6) is constituted, for each movable part (5), by a pad (40) of elastically compressible material, placed between the movable part (5 ) and the mount (3) or between this movable part (5) and a fixed part (7) placed on the mount (3), this buffer (40) normally holding the movable part (5) in the position for bringing the zones of receiving and being compressed when the moving part (5) is brought into position away from these receiving areas.  3-Pair of glasses according to claim 2, characterized in that: - the frame (3) comprises a nose piece (4) fixed on it, whose lateral edges (21) form two areas for receiving the glasses <Desc / Clms Page number 11>  (2), and lateral openings (15, 16, 17) for mounting said moving parts (5) and said pads (40) made of elastically compressible material; each opening has a portion (15) of larger section and a portion (16) of smaller section, the latter being oriented parallel to the direction of movement of the movable part (5); - Each movable part (5) has, for its mounting on the frame (3), a stud (33) in the form of a mushroom, the head of which has a dimension less than said part (15) of larger cross section but greater than said part (16) of smaller section, and whose body has a dimension less than said part (16) of smaller section, so that this stud (33) can be engaged in said opening at said part (15) of larger section then that its body can be slidably engaged in said part (16) of smaller section, said head then bearing against the frame (3) and thus retaining the movable part (5) on this frame (3) ; - Each pad (40) also has a stud (41) in the form of a mushroom, the head of which has a dimension greater than said part (15) of larger cross section and the body of which has a dimension corresponding substantially to this part (15) larger section, this stud (41) being able to be forcibly engaged in the portion (15) of larger section, which causes the deformation of the head of the stud (41), until this head opens out through of the opening and regains its original shape, thus locking the buffer (40) on the frame (3).  4-pair of glasses according to claim 2 or claim 3, characterized in that its frame (3) has, for each lens (2), a fixed support piece (7), placed so that the buffer ( 40) is located between it and the movable part (5), this support piece (7) fixes delimiting a support surface (45) for the pad (40).  5-pair of glasses according to claim 4, characterized in that it comprises: - at each of the aforementioned lateral opening, a second part (17) of smaller section, located opposite the first part (16) of smaller section relative to the part (15) of larger section, and in that - each fixed support piece (7) comprises a stud (46) in the form of a mushroom, the head of which has a dimension less than said <Desc / Clms Page number 12>  (17) of smaller section, said head then bearing against the frame (3) and thus retaining this support piece (7) fixed on this frame (3).

 part (15) of larger section but greater than said second part (17) of smaller section and whose body has a dimension less than said second part (17) of smaller section, so that this stud (46) can be engaged at the part (15) of larger section then that his body can be engaged in said second part 6-Pair of glasses according to one of claims 1 to 5, characterized in that: - the frame (3) comprises, at the pivot area of each branch (8), a pivot (48) for guiding this branch (8) in pivoting and a lug (49) forming a stop; - Each branch (8) comprises a light (50) for its engagement on the pivot (48), oriented longitudinally and allowing a longitudinal sliding of the branch (8) on this pivot (48), and a housing (51) suitable for receiving said lug (49) therein; said sliding takes place between a position of engagement of the lug (49) in the housing (51), which allows the branch (8) to be maintained in the deployed position, and a position of release of the lug (49) out of the housing (51), allowing the branch (8) to rotate around the pivot (48) with a view to folding this branch (8); each branch (8) further comprises a hooking spout (53) arranged on its internal edge, behind said pivot (48); - The pair of glasses (1) comprises two bands (42) of longitudinally stretchable elastic material, each of these bands (42) being located at a pivoting area of a branch (8); each strip (42) is connected to the frame (3) by one end, at the level of the internal face of this frame (3), and has an opening (43) at its other end, this opening (43) being shaped so that the band (42) can be engaged on said hooking beak (53) and being positioned so that this band (42) is stretched when it is hooked to this beak (53).  7-pair of glasses according to claim 6, characterized in that each housing (51) is connected, on the internal side of the branch (8), to a rounded area (52) forming a cam capable of sliding on the lug (49). <Desc / Clms Page number 13>  8-Pair of glasses according to claim 6 or claim 7, characterized in that: - said pivot (48) for guiding a branch (8) and said lug (49) forming a stop are arranged on said piece of fixed support (7), and in that - each strip (42) of longitudinally stretchable material forms a body with the pad (40) constituting said holding means (6).  9-Pair of glasses according to one of claims 1 to 8, characterized in that each branch (8) has a rectilinear shape and receives, at its free end, a support piece (60) intended to take support against the mastoid bone of the skull when the pair of glasses (1) is worn.