FR2861189A1 - Spectacle frame nasal pad is pivoted by T-shaped supporting rod engaging with holes in projections on back of pad - Google Patents

Abstract

The nasal pad (5) is attached to the spectacle frame by a metal supporting rod (60) with a T-shaped distal end (60-2) forming two stub-axles (62, 63) that engage with holes (52-1, 53-1) in projections (52, 53) on the back of the pad to form a pivot. The tip (64) of the rod extends beyond the stub-axles to act as a stop that limits the pad's movement.

Description

1 2861189

NASAL PLATE DEVICE

FOR EYEWEAR

  The present invention relates to a nasal wafer device for spectacle frames, comprising at least one nasal plate, a support rod and means for articulating the nasal plate on the support rod.

  Figures 1A, 1B, 2A, 2B show nasal pad devices most commonly encountered on commercially available spectacle frames.

  Figures 1A, 1B show a first conventional type of nose pad device, respectively by exploded view and assembled view. The device comprises a nasal plate 10 and a support rod 20. The rear face of the nasal plate 10, or sole 11, comprises an outgrowth 12 having two substantially parallel outer faces 12-1 (only one face being visible in FIG. 1A) and a hinge orifice 13 which passes right through the protrusion 12, perpendicular to the substantially parallel faces 12-1.

  The distal end of the support rod 20 comprises a hollow piece or cabochon 21, shaped to receive the protrusion 12 and having two side walls 21-1 substantially parallel. Each wall 21-1 has internal faces, not visible in FIGS. 1A, 1B, intended to coincide with the faces 12-1 of the protrusion 12, and comprises a bore 21-2 intended to coincide with the orifice 2261189. articulation 13 passing through the protrusion 12.

  The assembly of the device is carried out by introducing the protrusion 12 into the cap 21, and fixing the two elements together by means of a screw 25. The body of the screw 25 forms an axis of rotation passing through the orifice 13 and holes 21-2, as shown in Figure 1B.

  This first nasal wafer device has the disadvantage of being long to assemble, of being relatively bulky, and of being of a high cost price if one takes into account the cost of the screw, handling operations. spare parts and mounting of the screw. On the other hand, the hinge system obtained offers a limited angular displacement of the nasal plate relative to the support rod, of the order of 5 to 6, because the sole 11 abuts in rotation against the cabochon 21.

  Figs. 2A, 2B show, respectively by exploded view and assembled view, a second type of conventional nose pad device. The device comprises, as above, a nasal plate 30 and a support rod 40. The rear face of the nasal plate, or sole 31, comprises an outgrowth 32 having two substantially parallel faces 32-1 (only one face being visible in FIG. 2A ). Each face 32-1 here has a groove or longitudinal groove 33.

  The distal end of the support rod 40 comprises a U-shaped part 41 forming a kind of clamp and comprising two resilient arms 42, 43. The internal faces of the arms 42, 43, that is to say the faces are located in opposite, each have a boss 42-1, 43-1 generally obtained by punching the outer faces of the arms.

  3 2861189 The assembly of the device is achieved by snapping ("clipping") of the protrusion 32 in the workpiece 41, each boss 42-1, 43-1 cooperating with one of the grooves 33 to maintain the protrusion 32 in the piece 41 while ensuring a certain angular movement.

  This second type of nose pad device has the advantage of being quickly assembled, and is found on a large majority of sunglasses or sight.

  However, this device also offers limited angular displacement of the nose pad relative to the support rod, of the order of 5 to 6.

  The present invention aims a nose pad device that is quick to assemble, a reasonable cost, and that allows to obtain a significantly greater angular clearance of the nose pad than that offered by the conventional devices that come from to be described.

  These objectives are achieved by the provision of a nasal nosepiece device for eyeglass frames, comprising at least one nose pad, a support rod and means for articulating the nasal plate on the support rod, in which the distal end of the support rod comprises a substantially T-shaped portion having two male half-axes of rotation, and wherein the rear face of the nasal plate comprises two protuberances of a flexible and elastic material, each protuberance comprising a hinge orifice for receiving one of the half-axes, the protrusions to be spaced relative to each other for the insertion of the half-axes in the hinge orifices.

  According to one embodiment, the support rod 35 comprises an end portion which extends beyond the half-axes to cooperate with the rear face of the nasal plate and form a rotational stop of the nasal plate.

  According to one embodiment, the end portion of the support rod cooperates with an area of the rear face of the nasal plate located between the two protuberances.

  According to one embodiment, the end portion of the support rod cooperates in parallel contact with a profile extending between the two protuberances, to form a first soft stop rotation.

  According to one embodiment, the distal end of the support rod has a section cooperating by parallel contact with a profile extending between the two protuberances, to form a second smooth stop rotation.

  According to one embodiment, the distal end of the support rod is substantially in the form of a cross, the end portion of the support rod extending perpendicularly to the half-axes.

  According to one embodiment, the nasal plate has relative to the support rod an angular displacement of between 15 and 45.

  According to one embodiment, the protuberances 25 are made of flexible PVC.

  According to one embodiment, the rear face of the nasal plate forms a sole of the same material as the excrescences, the excrescences and the sole forming a single piece.

  According to one embodiment, the support rod is made of metal.

  According to one embodiment, the support rod is made of plastic.

  The present invention also relates to an eyeglass frame, comprising a nose pad device according to the invention.

  These and other objects, features and advantages of the present invention will be set out in more detail in the following description of an exemplary embodiment of a nasal pad device according to the invention, given as a non-limiting example in connection with the attached figures among which: - Figures 1A, 1B previously described respectively show an exploded view and an assembled view of a first type of conventional nose pad device, 2A, 2B previously described respectively show an exploded view and a view assembled a second type of conventional nasal wafer device; FIGS. 3A, 3B respectively show an exploded view and an assembled view of a nose pad device according to the invention, and FIGS. 4A, 4B are sectional views. longitudinal, in the direction of its thickness, an embodiment of the nose pad device according to the invention, my two rotational stops.

  FIGS. 3A, 3B represent, respectively by an exploded view and an assembled view, a nose pad device according to the invention comprising a nasal plate 50 and a support rod 60.

  According to the invention, the rear face of the nasal plate 50, or sole 51, has two protrusions or lips 52, 53 of a flexible and elastic material. Each lip 52, 53 has an inner face and an outer face, the inner faces of the lips being in vis-à-vis. Each lip 52, 53 has a hinge orifice 52-1, respectively 53-1, which opens on the inner face of the lip. The orifices 52-1, 53-1 may be through and open on the outer faces of the lips, as shown in Figures 3A, 3B, or be non-through and only lead to the inner faces. They are aligned along a common drilling axis AA 'which is substantially parallel to the plane of the sole 51 and substantially perpendicular to the longitudinal axis of the nose pad 50.

  The support rod 60 has a proximal end 60-1, a distal end 60-2, and a central bent portion 60-3 extending between the proximal end 60-1 and the distal end 60-2. The curvature of the portion 60-3 is determined so that the nasal plate 50 is substantially parallel to the wings of the nose when the proximal end 601 is attached to a spectacle frame.

  According to the invention, the distal end 60-2 of the support rod comprises a section 61 extending from the bent portion 60-3, and two male half-axles 62, 63 substantially perpendicular to the section 61, the assembly forming a portion of the support rod which is substantially T-shaped. Preferably, the distal end 60-2 of the support rod also includes an end portion 64 which extends beyond the half-shafts 62, 63 The end portion 64 is aligned here with the section 61, and extends in a direction perpendicular to the half-axes 62, 63. The distal end 60-2 thus has the shape of a cross, the cross being formed by the section 61, the half-shafts 62, 63 and the end portion 64.

  The assembly of the device according to the invention is particularly simple and fast and consists of moving the lips 52, 53 to insert the male half-lips 62, 63 in the corresponding orifices 52-1, 53-1. The lips are then released and resume their initial position by elastic effect, so that the half-shafts 62, 63 are trapped in the orifices 52-1, 53-1, the end portion 64 being found housed between both lips.

  In order to further facilitate the assembly of the device, the ends of the half-shafts 62, 63 may be substantially bevelled, as shown in FIG. 3A with regard to the end of the half-axis 62.

  The device according to the invention offers a large angular displacement of the nasal plate relative to the support rod, which can reach 45. To limit this movement, the end portion 64 abuts against the sole 51 when a certain angular position is reached, and thus forms a stop rotation. The angular displacement of the nasal plate can be freely determined by choosing the length of the end portion 64, taking into account the distance between the orifices 52-1, 53-1 and the sole 51.

  Figures 4A, 4B are longitudinal sectional views in the direction of the thickness of the nose pad, illustrating a particular embodiment of the device according to the invention. In this embodiment, a protuberance 70 having a determined profile is provided between the two lips, to obtain two "soft" stops of rotation determining the maximum angular displacement of the nose pad. This angular displacement is here chosen from about 15 to 20, which is sufficient in practice to meet the objectives of ergonomics and comfort of the present invention.

  In FIGS. 4A, 4B, there is a lip 53 which is behind the plane of section, the bent portion 60-3 and the distal portion 60-2 of the support rod, formed by the section 61, the half -axes 62, 63 and the end portion 64 of the support rod. The average thickness of the sole is represented by a line 54 in dashed lines, which corresponds to the surface of the sole.

  The protrusion 70 is a kind of longitudinal edge of small thickness which takes place between the two lips, and which extends beyond the average thickness line 54 of the nasal plate, in a direction substantially vertical to the plane of the sole 51. The protrusion 70 has a portion 71 substantially parallel to the plane of the sole, and an inclined portion 72 which tends towards the line of average thickness 54.

  Figure 4A shows a first rotational stop position of the nose pad. In this position, the section 61 of the distal end of the support rod bears against the portion 71 of the protrusion 70, parallel thereto, and blocks the rotation of the nasal plate thus forming a first stop of rotation. The end portion 64 of the support rod extends above the inclined portion 72 of the protrusion 70 but does not cooperate with the latter.

  Figure 4B shows a second rotational stop position of the nose pad. In this second position, the portion 61 of the distal end of the support rod has an angle of the order of 15 to 20 relative to the portion 71 of the protrusion 70. The end portion 64 of the support rod is here in contact with the inclined portion 72 of the protrusion 70, parallel thereto, and blocks the rotation of the nose pad, forming a second rotational stop.

  The two rotational stops thus obtained are soft abutments because the contact between the parts which cooperate to form a stop is a parallel contact, making it possible to avoid damage to the surfaces in contact.

  It will be clear to those skilled in the art that the end portion 64 of the support rod can take various other forms and cooperate in various other ways with the sole 51.

  The device according to the invention is of a small size and an advantageous aesthetic. Many shapes can be given to the lips 52, 53, for example the curved profile shown in the figures (profile on edge), the lips meeting in a region not receiving the distal end 60-2 of the support rod, for forming a common portion 55 of decreasing thickness (Fig. 3A, 3B).

  lips 52, 53 are for example made of or elastomer, for example flexible PVC, this being already used in the prior art for the excrescences of the nasal platelets higher.

  The lips 52, 53 and the sole 51 are preferably made in one piece. The front face of the nose pad 50 may comprise a pad attached to the sole 51 or itself be of the same material as the sole. In this case, the entire nasal plate 50 is made of a single block.

  The support rod 60 is made of a metal material or a rigid or semi-rigid plastic material. The support rod may be a one-piece piece, as shown in the figures, or an assembled piece. In the second case, the half-shafts 62, 63 may for example be made by gluing or welding a small bar transversely to the longitudinal body of the support rod, so as to obtain a T-shaped or cross-shaped profile (depending on whether rotational stop is desired or not). The

  The present invention is susceptible of various other variations within the reach of those skilled in the art, in particular with regard to the shape and arrangement of the various elements, the materials used and the techniques used for realize these elements.

Claims (2)

11 2861189 CLAIMS   1. Nose plate device for spectacle frames, comprising at least one nasal plate (50), a support rod (60) and means for articulating the nasal plate on the support rod, characterized in that: - distal end (60-2) of the support rod (60) comprises a substantially T-shaped portion having two male half-axes of rotation (62, 63), and - the back face (51) of the nose pad comprises two protuberances (52, 53) made of a flexible and elastic material, each protuberance comprising a hinge orifice (52-1, 53-1) for receiving one of the half-shafts (62, 63), the protuberances to be spaced relative to each other for the insertion of the half-axes in the hinge orifices.   The nose pad device according to claim 1, wherein the support rod (60) comprises an end portion (64) which extends beyond the half-shafts (62, 63) to cooperate with the back face ( 51) of the nasal plate and form a stop of rotation of the nasal plate.   3. Nose pad device according to claim 2, wherein the end portion (64) of the support rod cooperates with a zone of the rear face (51) of the nasal plate located between the two protuberances (52, 53). .   4. Nose pad device according to one of claims 2 and 3, wherein the end portion (64) of the support rod cooperates by parallel contact 35 with a profile (70, 72) extending between the two 12 2861189 excrescences (52, 53) to form a first soft stop of rotation.   Nose pad device according to one of claims 2 to 4, wherein the distal end (60-2) of the support rod has a section (61) cooperating in parallel contact with a profile (70, 71). extending between the two protuberances (52, 53) to form a second rotational stop.   The nasal pad device according to one of claims 2 to 5, wherein the distal end (60-2) of the support rod is substantially cross-shaped, the end portion (64) of the support rod. extending perpendicularly to the half-shafts (62, 63).   7. Nose pad device according to one of claims 2 to 6, wherein the nose plate has relative to the support rod an angular displacement of between 15 and 45.   8. Nose pad device according to one of claims 1 to 7, wherein the protuberances (52, 53) are flexible PVC.   9. Nose pad device according to one of claims 1 to 8, wherein the rear face (51) of the nasal plate forms a sole of the same material as the protuberances (52, 53), the protrusions and the sole forming a monobloc piece.   10. Nose pad device according to one of claims 1 to 9, wherein the support rod (60) is metal.   13 2861189 11. Eyeglass frame, comprising a nose pad device according to one of claims 1 to 10.