Classifications

• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C5/00—Constructions of non-optical parts
  • G02C5/22—Hinges
  • G02C5/2209—Pivot bearings and hinge bolts other than screws
• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C5/00—Constructions of non-optical parts
  • G02C5/22—Hinges
• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C5/00—Constructions of non-optical parts
  • G02C5/22—Hinges
  • G02C5/2263—Composite hinges, e.g. for varying the inclination of the lenses

Definitions

• the present invention relates to an eyeglass frame comprising a face and two branches pivoting about a main axis of pivoting to unfold or fold the branches relative to the face and pivoting about an auxiliary pivot axis to mount the branches on the face in the pivoting position about the main axis.
• the document FR 2 831 677 discloses a spectacle frame of this type in which a spherical knuckle is attached to a branch and inserted into a tenon of the face provided with a support of shape corresponding to the knuckle to allow pivoting.
• the maintenance of the knuckle in the tenon is ensured by a connecting piece comprising a housing for the spherical knuckle and two fixing lugs engaging the tenon by an auxiliary pivoting about an axis of the connecting piece confused with the direction longitudinal branch.
• WO 2008/129355 also discloses an eyeglass frame of this type in which a knuckle attached to each branch carries two pivoting heads defining the main pivot axis and a circular section defining the auxiliary pivot axis.
• the knuckle is inserted in a light of the face allowing the branches to pivot around the auxiliary axis.
• This arrangement makes it easy to replace one branch with another and thus to offer different combinations of faces and branches to assemble oneself.
• the pivoting heads protrude at the end of the branch and exert the compressive force against bosses formed in the light of the face.
• the invention aims to modify such a spectacle frame to exert differently the compression force to increase control and contribute to the reliability of mounting the branches on the face.
• the subject of the invention is an eyeglass frame comprising a face and two branches pivoting about a main axis of pivoting to unfold or fold the branches relative to the face and pivoting about an auxiliary pivot axis.
• a knuckle attached to the face, respectively to the branches is inserted into a light formed in the branches, respectively the face, characterized in that that two pivoting heads protrude into the lumen formed in the branches, respectively the face, and in that the knuckle comprises two cam tracks about the auxiliary pivot axis on which the pivoting heads exert a compression force against a deformation of the light, the pivoting heads or the knuckle during the auxiliary pivoting of the branches, the two cam paths being delimited by two housings along the main axis of pivoting in which the pivoting heads fit to maintain a compressive force when the branches pivot about the main axis.
• the profile, preferably elliptical, of the cam tracks controls the compression force when the branches pivot about the auxiliary axis.
• the control is exerted by two cam paths which each draw an arc of circle and a flat. The distance between the two housings extending along the main axis of pivoting makes it possible to determine the compressive force when the branches pivot about the main axis. Maintaining the compression force ensures a determined elastic pinching of the branches on the knuckle and guarantees a reliable mounting, without beating the branches relative to the face.
• the invention extends to an eyeglass frame according to the preamble set out above, characterized in that two pivoting heads project from the knuckle and in that the light comprises two cam tracks around the auxiliary pivot axis on the pivoting heads exert a compressive force against a deformation of the light, the pivoting heads or the knuckle during the auxiliary pivoting of the branches, the two cam paths being delimited by two recesses extending along the main axis of the pivoting in which the pivoting heads fit to maintain a compressive force when the branches pivot about the main axis.
• This embodiment of the invention provides a functional permutation between the light formed in the branches or the face and the knuckle respectively fixed to the face or the branches.
• the branches or the face comprise recesses allowing the light to deform in response to the compressive force exerted by the pivoting heads on the cam paths.
• the pivoting heads are mounted on springs caged in the knuckle, respectively in the branches or the face, to deform in response to the compression force exerted. by the pivoting heads on the cam paths of the light, respectively the knuckle.
• the knuckle comprises a recess closing in response to the compressive force exerted by the pivoting heads on the cam paths.
• the knuckle is provided with a stop blocking the pivoting of the branches around the auxiliary pivot axis when the branches are in position to pivot about the main axis of pivoting.
• Figure 1 is a front view of a branch according to the first variant of a first embodiment of the invention.
• Figure 2 is a front view of a knuckle according to the first variant of the invention.
• Figure 3 is a top view of the knuckle of Figure 2.
• Figure 4 is a side view of the knuckle of Figure 2.
• Figure 5 is a front view of the branch and the knuckle according to the first embodiment of the invention, the branch being in an initial position about the auxiliary pivot axis.
• Figure 6 is a front view of the branch and the knuckle of Figure 5, the branch being in an intermediate position about the auxiliary pivot axis.
• Figure 7 is a front view of the branch and the knuckle of Figure 5, the branch being in pivoting position about the main axis.
• Figure 8 is a top view of the branch and the knuckle of Figure 7, the branch being successively in an unfolded position and a folded position relative to the face about the main axis of pivoting.
• Figure 9 is a front view of a branch according to the second embodiment of the invention.
• Figure 10 is a front view of the branch and the knuckle according to the second variant of the invention, the leg being in an initial position about the auxiliary pivot axis.
• Figure 1 1 is a front view of the branch and the knuckle of Figure 10, the branch being in an intermediate position about the auxiliary pivot axis.
• Figure 12 is a front view of the branch and the knuckle of Figure 10, the branch being in pivoting position about the main axis.
• Figure 13 is a front view of a knuckle according to the third embodiment of the invention.
• Figure 14 is a top view of the knuckle of Figure 13.
• Figure 15 is a side view of the knuckle of Figure 13.
• Figure 16 is a front view of the branch and the knuckle according to the third embodiment of the invention, the branch being in an initial position about the auxiliary pivot axis.
• Figure 17 is a front view of the branch and the knuckle of Figure 16, the branch being in an intermediate position about the auxiliary pivot axis.
• Figure 18 is a front view of the branch and the knuckle of Figure 16, the branch being in pivoting position about the main axis.
• Figure 19 is a front view of a knuckle according to the fourth variant of the invention.
• Figure 20 is a top view of the knuckle of Figure 19.
• Figure 21 is a side view of the knuckle of Figure 19.
• Figure 22 is a sectional view of the branch and the knuckle according to a variant of the first embodiment.
• Figure 23 is a perspective view of a knuckle according to a first variant of a second embodiment of the invention.
• Figure 24 is a sectional view of the knuckle of Figure 23.
• Figure 25 is a perspective view of a knuckle according to a second variant of the second embodiment of the invention.
• Figure 26 is a sectional view of the knuckle of Figure 25.
• Figure 27 is a front view of a branch according to an alternative embodiment.
• Figure 28 is a top view of an eyeglass frame including a mask-shaped face.
• Figure 29 is a front view of Figure 28.
• Figure 30 is a front view of a branch according to a third embodiment of the invention.
• Figure 31 is a right view of Figure 30.
• Figure 32 is a top view of Figure 30.
• Figure 33 is a front view of a knuckle according to the third embodiment of the invention.
• Figure 34 is a top view of the knuckle of Figure 33.
• Figure 35 is a side view of the knuckle of Figure 33.
• Figure 36 is a front view of the branch and the knuckle according to the third embodiment of the invention, the branch being in an initial position about the auxiliary pivot axis.
• Figure 37 is a front view of the branch and the knuckle of Figure 36, the branch being in an intermediate position about the auxiliary pivot axis.
• Figure 38 is a front view of the branch and the knuckle of Figure 5, the branch being in pivoting position about the main axis.
• Figure 39 is a top view of the branch and the knuckle of Figure 7, the branch being successively in an unfolded position and a folded position relative to the face about the main axis of pivoting.
• a branch 3 of an eyeglass frame carries two pivoting heads 13 which protrude into a slot 21.
• a knuckle January 1 carries a main axis of pivoting 7 and an auxiliary pivot axis 9, perpendicularly relative to each other.
• a bridge 10 makes it possible to fix the knuckle 1 1 on a tenon of face 1, better visible in FIG. 8.
• a cam 19 formed in the knuckle 1 1 is provided with two cam tracks 18 rotating around the auxiliary axis of pivoting. 9 and delimited by two housings 12 extending along the main pivot axis 7.
• the two cam paths 18 have two identical profiles.
• the cam 19 may comprise two cam paths 18 having different profiles.
• the cam 19 is formed in the knuckle 1 1 perpendicular to the auxiliary pivot axis 9 between a base 16 and a support 22 of the fastening bridge 10.
• the support 22 has an edge 24 protruding relative to the cam tracks 18 to guide the pivoting heads 13 between the edge 24 and the base 16 of the knuckle 1 1. Note however that the support 22 can follow the profile of the cam tracks 18 without forming a projecting edge.
• Housing 14 associated with the auxiliary pivot axis 9 form two recesses in the base 16 to allow access of the pivoting heads 13 to the two cam tracks 18 when the knuckle 1 1 is inserted into the branch light 21 3.
• the two pivoting heads 13 When mounting the branch 3 on the face 1, Figure 5, the two pivoting heads 13 fit into the two housings 14 associated with the auxiliary axis 9.
• the branch 3 comprises recesses 23 which allow the light 21 to open in response to the compressive force of the pivoting heads 13 on the cam 19.
• the recesses 23 open into the slot 21.
• recesses closed on themselves and for example oblong are also provided. 7 the insertion of the two pivoting heads 13 into the two housings 12 extending along the main axis of pivoting 7 partially releases the compression force and partially closes the light 21.
• the compressive force of the pivoting heads 13 on the knuckle 1 1 is controlled by the profile of the cam paths 18.
• the insertion produces a partial relaxation maintaining a compressive force to ensure the elastic nipping of the knuckle 1 1 by the two heads of pivoting 13.
• the maintenance of a compressive force is determined, FIG. 4, by the distance D between the two housings 12 extending along the axis pivoting principal 7, greater than the distance d between the two pivoting heads 13 protruding into the slot 21 of the branch 3, FIG.
• the distance D between the two housings 12 is equal to 3.8 mm while that between the two pivoting heads 13 is equal to 3.6 mm.
• the pivoting heads 13, FIG. 9, are mounted on springs 25 encircled in housings 26 formed in the branches 3 and open on the slot 21. 10, during the assembly of the branch 3 on the face 1, the two pivoting heads 13 fit into the two housings 14 associated with the auxiliary pivot axis 9.
• FIG. 1 when the branch 3 pivots around the auxiliary axis 9, the two pivoting heads exert a compression force on the knuckle 1 1 controlled by the profile of the cam tracks 18.
• the springs 25 on which the pivoting heads 13 are mounted deform by tightening turns.
• Figure 12 the insertion of the two pivoting heads 13 in the two recesses 12 extending along the main axis of pivoting 7 partially releases the compressive force and partially relaxes the springs 25.
• the maintenance of a compressive force results from a distance D, FIG. 4, between the two housings 12 extending along the main axis of pivoting 7, greater than the distance d between the two pivoting heads 13 mounted on the springs 25 encaged in the branches 3 and open on the light 21, FIG.
• the knuckle 1 1, Figures 13 to 15, comprises a recess 27, cutting the knuckle into two parts connected by a material bridge 28.
• Figure 16 during assembly of the branch 3 on the face 1, the two pivoting heads 13 fit into the two housings 14 associated with the auxiliary pivot axis 9.
• Figure 17 when the branch 3 pivots about the axis 9, the two pivoting heads 13 exert a compressive force on the knuckle 1 1 controlled by the profile of the cam paths 18.
• the knuckle 1 1 closes by deformation of the material bridge 28.
• FIG. 21 is provided with a stop 29 blocking the pivoting of the branches 3 around the auxiliary pivot axis 9 when the branches 3 are in position to pivot about the main axis of pivoting 7.
• FIG. 22 two identical stops 29 obstruct the cam tracks 18 to lock the pivoting heads 13 in rotation when they are inserted into the housings 12 extending along the main axis of pivoting 7. Note, however, that a single stop 29 is sufficient for the rotational locking pivoting heads 13.
• This embodiment of the invention reduces the risk of disengaging the pivoting heads 13 if the branches 3 were to be forced to pivot beyond the angular position corresponding to their insertion into the housings 12 extending along the main axis 7 of pivoting. Hence a strengthening of the reliability of the assembly of branches 3 on the face 1.
• the pivoting heads have a hemispherical shape and the housings extending along the main axis of pivoting as the access housings of the heads of pivoting to the cam paths are adjusted to this form.
• the pivot heads and the aforementioned housing can take other forms.
• pivoting heads 13 access of the pivoting heads 13 to the cam tracks 18 at the distance d between the two pivoting heads 13 protruding into the slot 21 of the legs 3 or the face 1.
• the two access housings 14 may be closer than the distance d between the two pivoting heads 13, or even more distant than this distance, insofar as the cam tracks 18 control the compressive force of the heads.
• pivoting 13 on the knuckle 1 1 when the branches 3 pivot about the auxiliary axis 9 and where the distance D between the two housings 12 extending along the main axis of pivoting 7 determines the maintenance of a compressive force when the branches 3 will pivot around the main axis 7.
• the distance e between the two access housing 14 is greater than the distance d between the pivoting heads protruding into the slot 21 of the branch 3.
• the two access housing 14 are thus provided with a chamfer
• the spacing can be maintained at the value imposed by the chamfer 17 to create a compressive force of the pivoting heads 13 on the knuckle 1 1, before the beginning of pivoting about the auxiliary axis 9.
• This arrangement allows to hold by elastic pinching the branch 3 on the knuckle 1 1.
• a projection 20 can also reduce the spacing to a value lower than that imposed by the chamfer 15, decreasing the elastic nip but forming a retaining catch of the branch 3 on the knuckle 1 1 before the beginning of pivoting about the auxiliary axis 9.
• the cam paths 18 may have non-elliptical profiles to control the compressive force when the branches pivot about the auxiliary pivot axis 9.
• the distance D between the two housings 12 extending along the main axis pivoting means 7 remains the means for determining, for a given distance between the pivoting heads protruding into the slot 21 of the branch 3, the maintenance of a compressive force when the branches 3 pivot about the main axis 7
• the two cam tracks each define a circular arc 32 and a flat surface 34.
• the housings 12 for insertion of the pivoting heads 13 along the main axis 7 are formed in the two cam paths in an arc 32 which they delimit.
• the access housing 14 of the pivoting heads 13 to the cam tracks 18 are formed in the base 16 of the knuckle facing the flats 34. More particularly in FIG. 23, the base 16 and the edge 24 between which the cam paths in FIG. circular arc 32 run are provided with a notch 36 and 38 respectively, in which the pivoting heads 13 are housed when the branch 3 is in the folded or unfolded position with respect to the face 1.
• the notches 36 and 38 thus provide greater stability of the branch in one or other of these positions.
• the knuckle illustrated by FIGS. 25 and 26 differs from the previous one in that the two camming paths in an arc of circle 32 are closed by two stops 29 to block pivoting. branches 3 around the auxiliary axis 9 when the heads of pivoting are inserted into the housing 12 extending along the main axis of pivoting 7, that is to say in the position to pivot about this axis.
• a branch 3 of an eyeglass frame comprises a slot 21 provided with two cam tracks 18 around an auxiliary pivoting geometric axis 9. These paths cam are identical with respect to this pivot axis 9 which is also axis of symmetry of the light 21 and are delimited by two housings 12 extending along the main pivot axis 7.
• a knuckle 1 1 comprises two projecting pivoting heads 13.
• a bridge 10 makes it possible to fix the knuckle 1 1 on a face pin 1, better visible in FIG. 39.
• the two cam paths have the shape of a groove or a groove 41 dug in the thickness of the branch along the periphery 31 of the slot 21 to guide the pivoting heads 13 of the knuckle 1 1.
• Housing 14 associated with the auxiliary pivot axis 9 form two recesses in the periphery 31 of the slot 21 to allow access of the pivoting heads 13 of the knuckle 1 1 to the two cam tracks 18 when the knuckle 1 1 's inserts into the light 21 of the branch 3.
• the two pivoting heads 13 When the branch 3 is mounted on the face 1, FIG. 36, the two pivoting heads 13 fit into the two housings 14 of the slot 21.
• figure 37 when the branch 3 pivots about the auxiliary axis 9, the two pivoting heads 13 exert a compressive force on the cam tracks 18 cut into the slot-shaped or groove-like light 41.
• the branch 3 comprises recesses 23 which allow the light 21 to deform in response to the compressive force of the pivoting heads 13 on the cam tracks 18.
• FIG. 38 the insertion of the two pivoting heads 13 into the two housings 12 extending along the main axis of pivoting 7 partially releases the compression force and partially closes the light 21. This corresponds, FIG. 39, to the pivoting position of the branch 3 around the main axis 7, to be unfolded 3a or folded 3b relative to the face pin 1 of the frame.
• the compression force of the pivoting heads 13 is controlled by the profile of the cam paths 18 of the light 21.
• the insertion produces a partial relaxation maintaining a compression force for ensure the elastic nip of the two pivoting heads 13 in the light 21.
• the maintenance of a compression force is determined, FIG.
• the two cam paths 18 formed along the periphery 31 of the light 21 may each draw a circular arc and a flat.
• the lumen 21 may be formed in an insert on the branch or on the face.
• the pivoting heads 13 of the knuckle 1 1 can be mounted on springs caged in the knuckle 1 1.
• the closed periphery 31 of the light 21 formed in the branches or the face requires the mounting of the branches on the face by pivoting about the auxiliary axis of the knuckle but allows a compression force of the higher pivoting heads.
• the cam paths formed in the knuckle or in the light provide control of this effort when the branches pivot about the auxiliary axis and the determined maintenance of a compression force when the branches pivot about the main axis.

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• Physics & Mathematics (AREA)
• Health & Medical Sciences (AREA)
• General Physics & Mathematics (AREA)
• Ophthalmology & Optometry (AREA)
• Optics & Photonics (AREA)
• Eyeglasses (AREA)
• Pivots And Pivotal Connections (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=43971718

Family Applications (1)

Country Status (9)

Families Citing this family (2)

Family Cites Families (14)

• 2010
  • 2010-11-08 FR FR1004370A patent/FR2967264B1/fr not_active Expired - Fee Related
• 2011
  • 2011-10-21 EP EP11773265.1A patent/EP2638425A1/fr not_active Withdrawn
  • 2011-10-21 JP JP2013537062A patent/JP2013541739A/ja active Pending
  • 2011-10-21 WO PCT/EP2011/068488 patent/WO2012062555A1/fr active Application Filing
  • 2011-10-21 CN CN2011800613185A patent/CN103261948A/zh active Pending
  • 2011-10-21 US US13/883,616 patent/US20130229616A1/en not_active Abandoned
  • 2011-10-21 KR KR1020137014790A patent/KR20140001937A/ko not_active Application Discontinuation
  • 2011-10-21 RU RU2013126434/28A patent/RU2013126434A/ru not_active Application Discontinuation
  • 2011-10-21 CA CA2855706A patent/CA2855706A1/fr not_active Abandoned

Non-Patent Citations (1)

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