SPECTACLES

Abstract

Spectacles (1), comprising at least one spectacle lens (10) with a left and a right spectacle lens section (11, 12), a frame means (20) which comprises a left and a right frame part (21, 22) and is in mechanical engagement with the at least one spectacle lens (10), wherein each frame part (21, 22) has a fastening section (210, 220) with a fastening recess (24, 25), into which fastening recess (24, 25) at least one keying portion (13, 130, 14, 140) engages, wherein each frame part (21, 22) has a respective elastically flexible damping element (211, 221) which is fastened to a respective fastening section (210, 220), can be deflected elastically in at least one direction (R1, R2) and extends in the nasal direction (N1, N2) of the spectacles (1) along a lower edge (111, 121) of the respective spectacle lens section (11, 12) and is also separated from the lower edge (111, 121) with the formation of a variable clearance gap (S1, S2) up to a nasal end (212, 222) of the frame, wherein a respective nose pad (23) is disposed on each of the nasal frame ends (212, 222).

Claims

1. Spectacles comprising at least one spectacle lens with a left and a right spectacle lens section, a frame means which comprises a left and a right frame part, wherein the frame means is in mechanical engagement with the at least one spectacle lens and the left frame part is associated with the left spectacle lens section and also the right frame part is associated with the right spectacle lens section, wherein each frame part has a fastening section with a fastening recess, into which fastening recess at least one keying portion disposed at a lateral end of the respective spectacle lens section engages, characterized in that each frame part has a respective elastically flexible damping element, wherein each damping element is fastened to a respective fastening section and extends in a nasal direction of the spectacles along a lower edge of the respective spectacle lens section and is also separated from the lower edge with the formation of a variable clearance gap, up to a nasal end of the frame, wherein each damping element can be elastically flexibly deflected in at least one direction, and wherein a respective nose pad is disposed on each of the nasal frame ends, the nose pad being configured to sit on the nose of a user in a wearing position of the spectacles and to support the respective frame part.

2. The spectacles as claimed in claim 1, wherein the spectacle lens is produced in one piece and the left and the right spectacle lens section are connected together.

3. The spectacles as claimed in claim 1, wherein two separate spectacle lenses are provided, wherein the left and the right spectacle lens section are configured as separate spectacle lenses which are preferably connected together with at least one intermediate nose bridge.

4. The spectacles as claimed in claim 1, wherein the left and the right frame part are configured as separate frame parts, preferably as separate mirror-symmetrical frame parts.

5. The spectacles as claimed in claim 1, wherein the frame parts are exclusively fastened to the lateral ends of the respective spectacle lens sections or spectacle lenses.

6. The spectacles as claimed in claim 1, wherein in a wearing position in a neutral position of the spectacles, the damping elements do not come into contact with the respective spectacle lens sections or spectacle lenses.

7. The spectacles as claimed in claim 1, wherein the frame parts are connected together at their nasal frame ends to a central piece, preferably to an elastic central piece.

8. The spectacles as claimed in claim 1, wherein the frame parts and/or the elastically flexible damping elements are produced from a material which has a tensile modulus of elasticity of 1200 to 7000 MPa, preferably 1400 to 3500 MPa, in particular 1600 MPa.

9. The spectacles as claimed in claim 1, wherein the frame parts and/or the elastically flexible damping elements are produced from a material which has a yield strength of 30 to 130 MPa, preferably 40 to 100 MPa, in particular 60 MPa.

10. The spectacles as claimed in claim 1, wherein the frame parts and/or the elastically flexible damping elements are produced from a material which has an elongation of 2% to 8%, preferably 3% to 7%, in particular 6%.

11. The spectacles as claimed in claim 1, wherein the frame parts and/or the elastically flexible damping elements are produced from a material which has a breaking strength of 30 to 120 MPa, preferably 40 to 60 MPa.

12. The spectacles as claimed in claim 1, wherein the frame parts and/or the elastically flexible damping elements are produced from a material which has an elongation at break of more than 2%, preferably more than 10%, in particular more than 50%.

13. The spectacles as claimed in claim 1, wherein the frame parts and/or the elastically flexible damping elements are produced from a weather-resistant polyamide plastic, preferably from a cycloaliphatic polyamide plastic.

14. The spectacles as claimed in claim 1, wherein in a wearing position of the spectacles on a user's head, starting from the respective fastening section, the elastically flexible damping elements firstly extend in a direction opposite to a temple laterally downwardly on the head of the user and then in a nasal direction towards the nose of the user so that the damping elements respectively form a lower frame section.

15. The spectacles as claimed in claim 1, wherein the elastically flexible damping elements respectively have a free swinging length of 60 to 100 mm, preferably of 70 to 90 mm.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Further details, features and advantages of the invention will become apparent from the following description of exemplary embodiments which are diagrammatically shown in the drawings, in which:

[0048] FIG. 1 shows, in an isometric view from the front, a first embodiment in accordance with the invention of spectacles with a one-piece spectacle lens as well as with two frame parts fastened to the spectacle lens, wherein the nose pads are disposed on the free nasal frame ends of the damping elements;

[0049] FIG. 2 shows the spectacles shown in FIG. 1 in an exploded view from the front, with a left and a right frame part separated from the spectacle lens;

[0050] FIG. 2A shows a detailed view of the detail A marked with a dashed line in FIG. 2;

[0051] FIG. 3 shows a front view of the spectacles shown in FIG. 1 in an unstressed wearing position in the neutral position of the spectacles;

[0052] FIG. 4 shows a front view of the spectacles shown in FIG. 1 in a stressed wearing position when an external force is applied to the spectacles;

[0053] FIG. 5 shows a front view of a second embodiment in accordance with the invention of spectacles with a one-piece spectacle lens as well as with two frame parts fastened to the spectacle lens, wherein the nasal frame ends of the damping elements are connected to a central piece;

[0054] FIG. 6 shows a front view of a third embodiment in accordance with the invention of spectacles with two separate spectacle lenses which are connected together with nose bridges, as well as with two frame parts fastened to the respective spectacle lenses, wherein the nasal frame ends of the damping elements are connected to a central piece;

[0055] FIG. 7 shows, in front view, the spectacles shown in FIG. 3 in an unstressed wearing position in the neutral position of the spectacles, together with the contour of the head of an spectacles wearer, shown as a dashed line;

[0056] FIG. 8 shows, in front view, the spectacles shown in FIG. 4 in a stressed wearing position when an external force is applied to the spectacles, together with the contour of the head of an spectacles wearer, shown as a dashed line;

[0057] FIG. 9 shows, in side view, the spectacles shown in FIG. 7 in an unstressed wearing position in the neutral position of the spectacles, together with the contour of the head of an spectacles wearer, shown as a dashed line.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0058] The following detailed description of the figures refers to the first embodiment in accordance with the invention of spectacles 1 shown in FIGS. 1 to 4. The spectacles 1 shown here are designed as sport spectacles and have a one-piece continuous spectacle lens 10 produced from an unbreakable plastic. The spectacle lens 10 has a left spectacle lens section 11 as well as a right spectacle lens section 12. Keying portions 13, 130 are formed on a lateral end 110 of the left spectacle lens section 11 which serve for mechanical fastening to a frame means 20 or to a corresponding left frame part 21. A lower edge 111 of the left spectacle lens section 11 forms a contour section of the spectacle lens.

[0059] As a mirror image thereof, the right spectacle lens section 12 has a lateral end 120 on which the keying portions 14, 140 are formed, which serve for mechanical fastening to a frame means 20 or to a corresponding right frame part 22. A lower edge 121 of the right spectacle lens section 12 forms a contour section of the spectacle lens.

[0060] The frame means 20 comprises a left frame part 21 with a left fastening section 210, a left damping element 211 fastened thereto as well as a left nasal frame end 212.

[0061] Furthermore, the frame means 20 comprises a separate right frame part 22 which is independent of the left frame part 21, having a right fastening section 220, a right damping element 221 fastened thereto as well as a right nasal frame end 222. The left 21 and the right 22 frame parts are mirror-symmetrical in design and, for example, are formed in one piece from a thermoplastic with the trade name Grilamid TR 90. A respective nose pad 23 is fastened to each of the nasal frame ends 212. Particularly advantageously, these nose pads 23 are equipped with an inner insert material, for example produced from a metal, which can easily be shaped by a user. In this manner, the nose pads 23 can be tailored to the respective anatomy of the nose of the user. The left fastening section 210 has a left fastening recess 24, into which fastening recess 24 the keying portions 13, 130 or contour sections disposed on the lateral end 110 of the left spectacle lens section 11 engage in the assembled state of the spectacles 1. Here, an interlocking and frictional releasable push fit connection is selected in order to connect the left frame part 21 to the corresponding spectacle lens section 11 of the spectacle lens 10.

[0062] Similarly, the right fastening section 220 has a right fastening recess 25 into which fastening recess 25 the keying portions 14, 140 or contour sections at the lateral end 120 of the right spectacle lens section 12 engage in the assembled state of the spectacles 1. Here againmirror symmetricallyan interlocking and frictional releasable push fit connection is selected in order to connect the right frame part 22 to the corresponding spectacle lens section 12 of the spectacle lens 10. In the assembled state of the spectacles 1, the two frame parts 21, 22 are only connected together with the intermediate spectacle lens 10.

[0063] On the two frame parts 21, 22, in pairs, a left spectacle side piece 31 as well as a right spectacle side piece 32 are respectively movably fastened by means of side piece hinges 33. The arrow N1 symbolises the nasal direction N1 of the left damping element 211with respect to the envisaged wearing position of the spectacles on the head of a user, it is towards the nose of the user. The arrow N2 symbolises the nasal direction N2 of the right damping element 221. The variable clearance gap S1 between the left damping element 211 and the lower lens edge 111 is indicated by an arrow S1. Similarly, the variable clearance gap S2 between the right damping element 221 and the corresponding lower lens edge 121 is indicated by an arrow S1.

[0064] A deflection direction R1 of the left damping element 211 in which it can swing freely is symbolised by a double headed arrow R1.

[0065] A deflection direction R2 in which the right damping element 221 can swing freely is symbolised by a double headed arrow R2.

[0066] In the embodiment shown here, the respective damping element 211, 221 extends not only in the nasal direction N1, N2 substantially along the lower rim 111, 121 of the spectacle lens 10, but also follows the lateral curve of the spectacle lens 10 in the temple or lateral direction T1, T2 to the respective fastening section 210, 220. The arrow T1 symbolises the lateral direction of the free position of the left damping element 211. Using the anatomical term temple to mean leading towards the temples of a user, the left damping element 211starting from the fastening section 210goes firstly in the direction of the arrow T1 in a lateral direction, strictly speaking in a direction away from the temple of the user, laterally downwardly, in order to subsequently follow the curved or rounded contour of the spectacle lens 10 and extend in the nasal direction N1.

[0067] Reciprocally, the arrow T2 symbolises the lateral direction of the free position of the right damping element 221. The right damping element 221 toostarting from the fastening section 220is initially orientated in the arrow direction T2laterally downwardly in a lateral direction away from the temple of the user in order to subsequently follow the curved or rounded contour of the spectacle lens 10 and extend in the nasal direction N2.

[0068] In an unstressed wearing position P1 in the neutral position of the spectacles 1, as can be seen in FIG. 3, for example, the clearance gaps S1, S2 between the lower rims 111, 121 of the spectacle lens 10 and the respective damping element 211, 221, are 2 mm, for example, and 3 mm, for example, in the region between the lower edges 111, 121 and the nose pads 23.

[0069] In the stressed condition when an external force P2 is applied, as illustrated in FIG. 4 by way of example, during vibration of the spectacles 1, the clearance gaps S1, S2 between the lower rims 111, 121 of the spectacle lens 10 and the respective damping elements 211, 221 or the respective nose pads 23, could be reduced to 0 mm. Advantageously, the clearance gaps S1, S2 are variable, whence even external applied forces P2 which do not act centrally from above on the spectacles 1 but, for example, are in the form of forces applied from the side or obliquely from above or from below, can be absorbed particularly effectively by the elastic damping elements 211, 221. As an example, in a stressed wearing position P2 in which the external force acts on the spectacles 1 primarily on the left frame part 21, the left clearance gap S1 is briefly substantially smaller than the right clearance gap S2. The two damping elements 211, 221 may advantageously be deflected independently of each other in order to be able to absorb vibrations on the spectacles 1 to the best possible extent and in this manner to ensure good wearing comfort for the spectacles wearer.

[0070] FIG. 5 shows a second embodiment in accordance with the invention of spectacles 1 with a one-piece spectacle lens 10 as well as with two frame parts 21, 22 fastened to the spectacle lens 10, wherein the nasal frame ends 212, 222 of the damping elements 211, 221 are connected to an elastic central piece 26. The elastic central piece 26 here is, for example, a soft silicone tube section which is fastened to the nasal frame ends 212, 222 and which enables the sport spectacles to be held in a particularly secure, non-slip manner in the wearing position on the head of a user.

[0071] FIG. 6 shows a third embodiment of spectacles 1 in accordance with the invention with two separate spectacle lenses 11, 12 which are connected together by means of two nose bridges 19. Respective frame parts 21, 22 are fastened to the spectacle lenses 11, 12, wherein the nasal frame ends 212, 222 of the damping elements 211, 221 are connected to a central piece 26.

[0072] Similarly, in a further embodiment which is not explicitly shown of spectacles 1 in accordance with the invention with two separate spectacle lenses 11, 12, a central piece 26 of this type may be omitted. In this variation of the design, conventional spectacles 1 with separate spectacle lenses 11, 12 can be combined with the advantageous effects of the frame parts 21, 22 provided with the damping elements 211, 221.

[0073] FIG. 7 shows the spectacles 1 shown in FIG. 3 in an unstressed wearing position P1 in the neutral position of the spectacles 1 together with the contour, shown in dashed lines, of the head of the spectacles wearer. The clearance gaps S1, S2 here are between 2 mm and 3 mm, for example, in the unstressed wearing position.

[0074] FIG. 8 shows the spectacles 1 shown in FIG. 4 in a stressed wearing position P2 during application of an external force which is symbolised by arrow P2, together with the contour of the head of the spectacles wearer, shown in dashed lines. Here, the clearance gaps S1, S2 in the stressed wearing position are briefly 0 mm viewed from the front. Because the nose of the spectacles wearer is comparatively narrow and slender, the nose pads 23 here are curved slightly backwards with respect to the wearer's face behind the spectacle lens 10 on the nose. This can also be seen in the side view of FIG. 9. In this manner, in the stressed wearing position P2 of FIG. 8, the damping elements 211, 221 as well as the nose pads 23 do not come into contact with the lower edges 111, 121 of the spectacle lens 10 even during application of the external force P2.

LIST OF REFERENCE NUMERALS

[0075] 1 spectacles [0076] 10 spectacle lens [0077] 11 left spectacle lens section or left spectacle lens [0078] 12 right spectacle lens section or right spectacle lens [0079] 110 lateral end of spectacle lens section [0080] 111 lower edge of left spectacle lens section [0081] 120 lateral end of right spectacle lens section [0082] 121 lower edge of right spectacle lens section [0083] 13, 130 keying portion of left spectacle lens [0084] 14, 140 keying portion of right spectacle lens [0085] 19 nose bridge [0086] 20 frame means [0087] 21 left frame part [0088] 210 left fastening section [0089] 211 left damping element [0090] 212 left nasal frame end [0091] 22 right frame part [0092] 220 right fastening section [0093] 221 right damping element [0094] 222 right nasal frame end [0095] 23 nose pad [0096] 24 left fastening recess [0097] 25 right fastening recess [0098] 26 central piece [0099] 31 left spectacle side piece [0100] 32 right spectacle side piece [0101] 33 side hinge [0102] N1 nasal direction of left damping elements (arrow) [0103] N2 nasal direction of right damping elements (arrow) [0104] S1 clearance gap between left damping element and lower lens edge (arrow) [0105] S2 clearance gap between right damping element and lower lens edge (arrow) [0106] P1 unstressed wearing position in neutral position of spectacles [0107] P2 stressed wearing position during application of a force to the spectacles (arrow) [0108] R1 deflection direction of left damping elements (arrow) [0109] R2 deflection direction of right damping elements (arrow) [0110] T1 temple direction of left damping elements (arrow) [0111] T2 temple direction of right damping elements (arrow)