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
  • G02C5/14—Side-members
  • G02C5/146—Side-members having special front end
• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C2200/00—Generic mechanical aspects applicable to one or more of the groups G02C1/00 - G02C5/00 and G02C9/00 - G02C13/00 and their subgroups
  • G02C2200/06—Locking elements
• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C2200/00—Generic mechanical aspects applicable to one or more of the groups G02C1/00 - G02C5/00 and G02C9/00 - G02C13/00 and their subgroups
  • G02C2200/08—Modular frames, easily exchangeable frame parts and lenses
• • G—PHYSICS
  • G02—OPTICS
  • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
  • G02C2200/00—Generic mechanical aspects applicable to one or more of the groups G02C1/00 - G02C5/00 and G02C9/00 - G02C13/00 and their subgroups
  • G02C2200/26—Coil spring pushed upon actuation

Definitions

• the present invention relates to a removable branch of spectacles, intended to cooperate by locking at least one integral tenon of the frame of said spectacles, said branch comprising movable locking means of said pin adapted to pass, under the action of means of elastic return, through a translation movement transversely to the axis of said leg, an unlock position to a locking position of said pin.
• the invention further relates to spectacles receiving such branches.
• the invention relates to the field of eyewear.
• a pair of spectacles comprises two removable branches made integral, through locking means, with a frame intended to support correction lenses.
• GB 2 103 829 discloses such glasses comprising a prolonged frame, on each side, by a lug shaped so as to cooperate by interlocking with a removable branch.
• the locking of the lug relative to the branch is effected through a push button.
• this button is mounted in translation orthogonal to the axis of said branch within a blind hole.
• a compression spring located between said push button and the bottom of said hole, provides an elastic restoring force which pushes the button to the locking position of said pin. This restoring force is axially applied to the movement of said button.
• a screw acts as a stop preventing the push button from being ejected under the action of the restoring force of said spring.
• the lug and the push button are shaped so as to cooperate by interlocking.
• Said lug is in the form of a fork in which is formed a circular cutout adapted to receive said button of complementary shape. This circular shape eliminates a hinge, the interlocking of the pin on said button acting as articulation of the branch relative to the glasses.
• the aim of the invention is to overcome the drawbacks of the state of the art by proposing a removable eyewear branch comprising a locking mechanism of the arm relative to said spectacles, the mechanism being internal to said arm and, consequently, of small footprint and contributing to the aesthetic character of the frame. In addition, no part of said mechanism can be lost through an irreversible assembly.
• said invention firstly aims at a removable eyewear branch intended to cooperate by locking the at least one integral tenon of said spectacles, said branch comprising movable locking means of said post capable of passing, under the action of elastic return means, through a translation movement transversely to the axis of said branch, an unlocked position at a locking position of said post.
• Such a branch is characterized in that said elastic return means are mounted in orthogonal displacement with respect to the movement of displacement of said locking means.
• said elastic return means are mounted in displacement longitudinally with respect to the axis of said branch, in particular within a bore.
• said locking means have a contact surface with said elastic return means oriented so that, on the one hand, during the transition from the locking position to the unlocked position, the displacement of said locking means induces a withdrawal of said resilient return means, while, on the other hand, the return to the locking position is induced by the transverse displacement of said elastic return means.
• said locking means are in the form of a free push button in translation within a blind hole formed in said branch, the stroke of said button being limited at one end, in the unlocked position, by the bottom of said hole and at the other end, in the locking position, by indexing through said elastic return means.
• said bore and said blind hole have a polygonal section reciprocally of complementary shape to the section of said elastic return means and said push button.
• said elastic return means comprise a compression spring capable of moving a wedge cooperating with said locking means through said contact surface.
• said locking means comprise an inclined surface adapted to cooperate by contact with a complementary surface formed on said pin, said surfaces being shaped so that the insertion of said tenon within said bore induces a displacement of said means of locking from the lock position to the unlocked position.
• said locking means comprise a shoulder adapted to cooperate by blocking a complementary redent formed on said pin.
• the invention also relates to spectacles comprising a frame provided with at least one tenon adapted to cooperate by locking with a removable branch as mentioned above.
• FIG. 1 shows a sectional view of a detail of the removable branch according to the invention, in particular the locking means in the locking position of the post;
• Figure 2 is a sectional view of said locking means in the unlocked position.
• the present invention relates to a branch 1 provided removable relative to a pair of glasses (not shown).
• this removable arm of glasses is intended to cooperate by locking at least one lug 2 integral with said glasses.
• This post 2 preferably extends orthogonally with respect to the frame of said glasses, on either side thereof.
• This post 2 is intended to be inserted and then kept locked inside said branch 1, along the longitudinal axis of the latter.
• the branch 2 comprises means 3 for locking said stud 2 relative to the branch 1.
• These locking means 3 are movable, under the action of elastic return means 4, so as to move from an unlocked position, visible in Figure 2, to a locking position of said pin 2, visible in Figure 1 ; and vice versa.
• said locking means 3 are in the form of a push button 5 free in translation within a blind hole 6 formed in said branch 1.
• D ' a depth greater than the height of said button 5, the hole 6 is partially and transversely pierced through said branch 1. Therefore, the stroke of said push button 5 is limited to one end, in the unlocked position, by the bottom 7 of said hole 6 and, at the other end 8, in the locking position, by indexing through the elastic return means 4.
• said knob 5 protrudes from said blind hole 5, at the open end 8 and relative to the surface 9 of the branch 1. The portion of the button 5 protruding from the branch 1 allows
• an essential feature of the invention lies in the fact that said elastic return means 4 are mounted in orthogonal displacement with respect to the movement of movement of said locking means 5. More particularly, said return means 4 are mounted in position. displacement longitudinally relative to the axis of said branch 1, in particular within a bore 10.
• the bore 10 is made from the end 11 of the branch 1 located at the frame of the glasses. This bore 10 passes through the blind hole 6 to finish also one-eyed at its other end. At the bottom of this bore 10 are arranged the elastic return means 4.
• the latter comprise a compression spring 15 able to move indexing means 12 of said locking means 3 in the locking position.
• these indexing means 12 are in the form of a wedge 13 cooperating with said locking means 5 through a contact surface 14.
• These indexing means can also be in any form, for example a finger having a circular end.
• the wedge 13 is in the manner of a bolt set in motion by the spring 15.
• the wedge 13 comprises a rod 16 s' pushing inside the turns of the spring 15, the end 17 of the rod 16 can serve end of limit stop of said corner 13 at the bottom of the bore 10.
• the corner 13 is terminated at the other end by a ramp.
• the latter may advantageously be oriented obliquely so as to push the push button 5 upwards during the displacement of said wedge 13 under the action of the spring 15.
• said locking means 3 may have a surface 18 of contact with said elastic return means 4 oriented so that, on the one hand, during the transition from the locking position to the unlocked position, the displacement of said locking means 3 induces a withdrawal of said elastic return means 4, while, on the other hand, the return to the locking position is induced by the transverse displacement of said elastic return means 4, as mentioned previously.
• Said contact zone 18 is inclined at an angle to the longitudinal axis of the branch 1.
• This contact zone 18 allows the right-angle transfer of forces, on the one hand, vertical acting on the push button during unlocking and, on the other hand, the horizontal force induced by the elastic return means 4.
• the downward vertical thrust on said push button 5 is reflected to push horizontally the return means 4 towards the bottom of the bore 10, by sliding along the contact surface 18.
• the force exerted by the spring 15 causes the rise of said push button 5.
• said bore 10 and said blind hole 6 have a polygonal section reciprocally of complementary shape to the section of said elastic return means 4, in particular of the corner 13, and said push button 3.
• this section is of parallelepipedal shape, in particular in the form of a square quadrilateral .
• said post 2 has the same polygonal shape. This shape prevents the rotation of these elements within their respective housing.
• the return means 4 protrude from the side edges of the blind hole 6.
• the tip 19 of the wedge 13 forms a limit stop of said push button 5. This stop cooperates with the pin 20 resulting from the recess within the push button 5 to provide an inclined contact area 18.
• said locking means 3 comprise an inclined surface 21 adapted to cooperate by contact with a complementary surface 22 provided on said pin 2. Said surface 21 and 22 are shaped so that the insertion of said pin 2 within said bore 10 induces a displacement of said locking means 3 from the locking position to the unlocked position.
• the sliding engagement in translation of said pin 2 along the bore 10 allows the unlocking of said button 5.
• the horizontal thrust of post 2 transmits orthogonally a vertical push down means of lock 3 and therefore lower the button 5.
• said locking means 3 comprises a shoulder 23 adapted to cooperate by blocking a complementary redent 24 formed on said pin 2 .
• the return means 4 exert a force for a return to the locking position.
• the shoulder 23 and the redent 24 are then nested, in horizontal locking position of the post 2 by the locking means 3.
• Another advantage lies in the fact that the arrangement of the elements of the locking mechanism according to the invention does not require any removable part. Indeed, the engagement of parts relative to each other is irreversible. In addition to preventing the possible loss of a part over use, the lock according to the invention offers increased durability for less space.
• the present invention also relates to spectacles comprising a frame provided with at least one pin 2 adapted to cooperate by locking with a removable branch 1 as previously described.
• said pair of spectacles comprises two pins 2 situated on each side of the frame and intended to be each inserted within a removable branch according to the invention.

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=37810099

Family Applications (1)

Country Status (3)

Families Citing this family (4)

Family Cites Families (3)

• 2006
  • 2006-10-09 FR FR0654157A patent/FR2906900B1/fr not_active Expired - Fee Related
• 2007
  • 2007-10-02 EP EP07858486A patent/EP2074471A2/de not_active Withdrawn
  • 2007-10-02 WO PCT/FR2007/052053 patent/WO2008043935A2/fr not_active Ceased

Non-Patent Citations (1)

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