WO2021144283A1 - Plastic hinge - Google Patents

Plastic hinge Download PDF

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Publication number
WO2021144283A1
WO2021144283A1 PCT/EP2021/050522 EP2021050522W WO2021144283A1 WO 2021144283 A1 WO2021144283 A1 WO 2021144283A1 EP 2021050522 W EP2021050522 W EP 2021050522W WO 2021144283 A1 WO2021144283 A1 WO 2021144283A1
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WO
WIPO (PCT)
Prior art keywords
hinge
male
window
female
hinge according
Prior art date
Application number
PCT/EP2021/050522
Other languages
French (fr)
Inventor
Luc Emile Georges MENETREY
Original Assignee
Innotech
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Innotech filed Critical Innotech
Priority to EP21702858.8A priority Critical patent/EP4091018A1/en
Publication of WO2021144283A1 publication Critical patent/WO2021144283A1/en

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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
    • 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

Definitions

  • the invention relates to a plastic hinge, preferably bioplastic, to make a part movable relative to another part, in particular the hinge can directly form two constituent parts of a device.
  • the hinge directly forming two constituent parts of a pair of glasses, namely a spectacle branch while the another part is the face of the spectacle frame, in particular a tenon.
  • the hinge of the invention applies to any use for which a part must be movable relative to another.
  • the applications are very diverse.
  • the invention applies in the field of luggage storage, kitchens (cupboard doors for example), boating, caravans, motor homes.
  • a hinge made only of plastic material has the particular advantage of reducing the number of parts constituting it.
  • An example of a plastic hinge comprises two parts which are connected to each other by a fold line.
  • a hinge is difficult to envisage for the arms of glasses, because in the folded position of the arms when not in use, the arms have a tendency to reopen.
  • the aim of the invention is therefore to provide a new hinge made of plastic, preferably of bioplastic, which is only in two parts, which is aesthetic, in particular that its articulation mechanism is invisible, can be simple implementation, that is to say that the two parts can easily be assembled, and advantageously that the two parts can be removable.
  • the hinge is made of plastic, in particular of bioplastic material, and has only two parts, a first part and a second part, one of the parts being articulated relative to the other part, the first part comprising a male form enclosed in an interior cavity / a housing provided with at least one window, called the first window, to access up to the male form, while the second part is able to pass through the window of the first part and has a female form to cooperate with the male form by engagement around the latter and by pivoting.
  • the first part comprises a body with closed faces which comprises, on the one hand, an internal cavity having a single male shape, and at least on one of the external faces, at least one window opening into the cavity interior, while the second part comprises a body which comprises a portion provided with a female form and housed in the internal cavity in a mounted position of one part on the other, the female form cooperating by pivoting with the male form .
  • the plastic material generates a light hinge (weight saving for the hinge and the product incorporating such a hinge) and does not deteriorate over time.
  • a plastic hinge does not have a mechanism that risks being damaged as in a usual hinge.
  • the plastic hinge is easily recyclable (no metal part to separate).
  • the uniqueness of the male form simplifies the design of the hinge.
  • the mechanism of pi votement / articulation of the hinge is also invisible by the housing of the male and female forms in a cavity inside a solid body with closed faces.
  • this hinge design ensures rigidity of the mechanism in the open position.
  • the male form constitutes the axis of rotation of the hinge.
  • the hinge according to the invention is devoid of screws, which avoids the multiple drawbacks of the prior art with screws, in particular in relation to the risk of separation of the hinge system, heavier hinge, the need, depending on the uses, to call on handling (specialized) for assembly / disassembly.
  • the two parts of the hinge are manufactured independently and are assembled to one another after manufacture, preferably are removable after having been assembled. Removability allows a wide variety of applications. It allows interchangeability of one part with respect to the other. For eyewear, this allows you to easily and quickly change the temples of glasses or frames.
  • the two parts of the hinge can be manufactured by 3D printing.
  • the plastic material is bioplastic, in particular polyamide 11 loaded with vegetable flour. This plastic material is thus biobased and recyclable.
  • the second part with the female form constitutes a branch of a pair of glasses and the first part with the male form constitutes a tenon of said pair of glasses with which the branch is associated.
  • the male and female forms cooperate by clipping.
  • the male and female forms each have a geometry and dimensions designed so that for the coupling of the two hinge parts, the female form cooperates by sliding around the male form (to ensure an engagement by translation of the female form on the male form) until the male form comes into abutment in a circular orifice (end of travel) of the female form.
  • the male form has a generally cylindrical shape and has two opposing flats and two opposing semicircular surfaces.
  • the male form therefore comprises on its periphery two opposite faces with straight sides, and two opposite faces symmetrical in an arc of a circle with a convexity facing outwards, respectively providing the two opposite flats and two semi-circular surfaces.
  • the flats extend over the entire height of the male form along the axis of rotation.
  • the female form has a circular stopper orifice and a longitudinal sliding / guide groove extending from the circular orifice and opening freely opposite the circular orifice, preferably the longitudinal groove having di verging walls since the circular orifice.
  • the flats are in planes which have a distinct angle of 90 ° relative to the plane of the (first) access window to the housing of said male form.
  • the non-orthogonality to the plane of the housing access window participates in locking the female form around the male form
  • the second hinge part provided with the female form has, in top view, the general shape of an open-ended wrench, and comprises two spaced pins which define the female form (indented part), preferably the 'one of the pins being longer than the other.
  • the second part therefore comprises a branch, a gripping part which will make it possible to act, on the one hand, on the pivoting of the hinge when said second part is the movable part of the hinge, and on the other hand on the coupling and the uncoupling of said second part from the first hinge part.
  • the two spaced pins protect the female form.
  • the fact that one of the pins is longer than the other facilitates the assembly of the female form on the male form and makes it possible to make said second hinge part removable after assembly.
  • the female form comprises a circular orifice (visible in top view) which is partly open at the periphery, and a longitudinal groove extending from the circular orifice and opening freely opposite the 'orifice, preferably the longitudinal groove having straight walls and diverging outwardly from- then the circular orifice (or converging from the outside towards the orifice).
  • the longitudinal groove of the female form is angularly offset with respect to the planes of the flats of the cylindrical male part, c 'that is, the flats are not aligned with the walls of the longitudinal groove.
  • This configuration guarantees a locking of the uncoupling of one part relative to the other, while allowing pivoting of one part relative to the other.
  • a slight pressure must be applied on the edge of the end of one of the pins of the female part (parallel to the first window of the housing of the first part to disconnect the branch / the movable part of the male form / the fixed part
  • This slight transverse support is intended to slightly separate the female form and to align the longitudinal groove / the indented part of the female form with the flats of the male form , in order to be able to ensure a translation in the opposite direction of the female form.
  • the second part comprises a body which has (opposite the branch, in the extension of one of the pins of the open-ended wrench) a free distal end forming a terminal in protrusion with respect to the rest of the body of said second part, preferably said distal end being made accessible in the mounted position of the second part on the first part in order to allow the two hinge parts to be uncoupled.
  • the first hinge part comprises a second window opposite the first window with respect to the housing, a second window from which the second hinge part is engaged, the projecting distal end being accessible from this second window. .
  • the distal end protrudes outside the second window in the closed position of the hinge (closed position of the hinge) and does not protrude in the fully open position of the hinge (i.e. when the angle between the two hinge parts is the most open). It is on this distal end that the user presses to realign the flats of the male form with the longitudinal groove of the female form, in order to disconnect the two hinge parts.
  • the first part and the second part comprise complementary surfaces so that in the fully open position of the hinge, the hinge forms a single unit with a continuous external profile.
  • the interior cavity / the housing of the first part has peripheral walls, the geometry of which is adapted to match the geometry of the external lines of the body of the second part accommodated in said housing, in particular the interior cavity / housing comprises at least two op posed lines serving as stops for the second part respectively in the fully open position of the hinge and in the fully closed position of the hinge.
  • the angle of the hinge in the fully open position of the hinge is obtuse.
  • FIG. 1 or Figure 1 shows a perspective view of an embodiment of the hinge according to the invention in the fully open position.
  • FIG. 2 corresponds to a top view of the hinge of FIG. 1.
  • FIG. 3 or Figure 3 is a perspective view of the hinge in the closed position.
  • FIG. 4 corresponds to the top view of FIG. 3.
  • FIG. 5 shows a partial sectional view from above of the hinge in the fully open position.
  • FIG. 6 or Figure 6 corresponds to Figure 5 in the fully closed position of the hinge.
  • FIG. 7 or Figure 7 is a perspective view from above of the first part of the hinge, with the male form.
  • FIG. 8 is a transparent view of FIG. 7 with the second part of the hinge provided with the female form coupled to the male form, in the fully open position of the hinge.
  • FIG. 9 or Figure 9 corresponds to Figure 8 in the fully closed position of the hinge.
  • FIG. 10 or Figure 10 is a sectional and top view of the hinge according, from left to right, different stages of assembly / coupling of the hinge part provided with the female form to the other part provided with the male form.
  • FIG. 11 or Figure 11 is a sectional and top view of the hinge in different stages for uncoupling.
  • the hinge 1 of the invention illustrated in the figures is for example used for a pair of glasses, without however being limited thereto.
  • the hinge 1 has only two parts, a first part 2 which is said here in the intended use, the fixed part, and a second part 3, which is then the movable part relative to the fixed part.
  • the fixed part 2 constitutes an eyeglass frame tenon
  • the movable part 3 constitutes a branch of the glasses.
  • the two parts 2 and 3 of the hinge are each in the example shown monolithic and have an external contour adapted to the shape of a tenon and a branch of glasses, respectively.
  • the two parts could have a different external geometry, to adapt directly to the intended application.
  • they could not form parts as such of a product, but each be intended to be attached to two respective parts to appear.
  • the movable part 3 comprises, on the one hand, a so-called pivoting portion 30 which is able to cooperate by pivoting with the fixed part 2, and on the other hand, an extension portion 31 which extends in the mounted position , towards the opposite of the fixed part 2.
  • the pivoting portion 30 is intended to be housed in an internal cavity (or a housing) 20 formed inside the body of the fixed part, while the extending portion 31 is outside the fixed part 2.
  • the portion of extension 31 is elongated to constitute the main body of a branch of net reads.
  • This extension portion may have another shape depending on the destination of the hinge 1.
  • This extension portion constitutes a gripping means for the mobile part 3.
  • the fixed part 2 carries a single male form 21, while the pivoting portion 30 of the movable part 3 comprises a female form 32 able to cooperate with the male form 21.
  • the body of the fixed part 2 is a solid solid.
  • the body of the fixed part 2 has two opposite faces 2A and 2B.
  • the face 2A is referred to hereinafter as the front face in the context of a use of the hinge of the invention for a pair of glasses, the front face 2A constituting the external face of a tenon of a pair of glasses.
  • the opposite face 2B is called the rear face.
  • the body of the fixed part 2 comprises at least a first window 22 on the rear face 2B, this window communicating with the internal cavity 20.
  • the body of the fixed part 2 comprises a second window 23, opposite to the first window 22 and arranged on the front face 2A, this second window communicating with the interior cavity 20.
  • the so-called upper and lower faces of the body of the fixed part 2 faces perpendicular to the front and rear faces, are solid.
  • the first window 22 of the fixed part 2 allows, for the movable part 3 and therefore for the female form 32, access to the internal cavity 20 and therefore to the male form 21.
  • the engagement of the female form 32 of the mobile part 3 is done via this first window 22.
  • the branch 3 of glasses is open with respect to the post 2 of the spectacle frame, this view is therefore the front view that an individual sees while re keeping a user wearing a pair of glasses with the hinge 1 of the invention.
  • the frame remains completely aesthetic, since the free end 33 (described later) of the pivoting portion 30 of the movable part of the hinge / of the branch 3 remains coplanar with the front face 2A of the tenon 2 (front face of the frame) without protruding from this face.
  • the fixed part 2 could be larger to fully house the free end 33 of the pivoting portion 30 without the latter protruding from the front face 2A in the closed position of the hinge.
  • the fixed part 2 could be larger to fully house the free end 33 of the pivoting portion 30 without the latter protruding from the front face 2A in the closed position of the hinge.
  • to disassemble the movable part 3 from the fixed part 2 it is necessary to be able to apply pressure from the outside on the distal end 33.
  • the mechanism as such for pivoting the hinge (cooperation of the male part 21 with the female part 32) is housed inside the fixed part 2, and is invisible.
  • the interior cavity 20 passes through the thickness of the body of the fixed part 2 from the front face 2A to the rear face 2B.
  • the fixed part 2 thus presents the first window 22, called the rear window, which is provided in the rear face 2B and opens onto the interior cavity 20, and the second opposite window 23, called the front window, which is arranged on the front face. 2A and opens into the interior cavity 20.
  • the width of the windows 22 and 23 can be different.
  • the width of the rear window 22 is adapted to leave the desired maximum amplitude freedom for the movable part 3 between its open end position (FIG. 5) and its closed end position (FIG. 6).
  • the internal cavity 20 of the fixed part 2 comprises the male form 21, and is intended to house the pivoting portion 30 of the movable part 3.
  • the male form 21 provides a pivot axis for the pivoting portion 30 of the hinge.
  • the pivoting portion 30 cooperates with the male form 21 in rotation and without play.
  • the male form 21 is arranged substantially in the center of the internal cavity 20 which has a hollow volume around said male form to leave room for it. arrangement of the pivoting portion 30 of the movable part 3.
  • the male form 21 forms like a stud.
  • the male form 21 is cylindrical, of uniform section along the entire height / thickness of the cylinder.
  • the base or section of the cylindrical is of hybrid geometry, comprising two opposite straight sides, and two opposite sides symmetrical in an arc of a circle with a convexity facing the outside of the cylinder.
  • the cylindrical male form comprises a peripheral wall having two opposite flats 24A and 24B (over the entire height) and two opposite surfaces curved in an arc of a circle, called semi-circular surfaces, 25A and 25B.
  • the semi-circular surfaces 25A and 25B supplied have the hinge pivot rate along the full height / thickness of the male part 21.
  • the flats 24A and 24B form flat guiding and bearing surfaces during assembly of the movable part 3.
  • the flats participate in the worm assembly rusting of the movable part 3 in the fixed part 2, without preventing the pivoting of said movable part.
  • the interior cavity 20 of the fixed part 2 has dimensions / a volume to provide freedom of movement to the movable part during its pivoting between its two closed and open end positions, as well as a perimeter of which the The lines are adapted to follow the outer lines of the pivot portion 30 of the movable part 3 so that said pivot portion 30 can be guided and rest against abutment surfaces between its closed position and its fully open position.
  • the internal cavity 20 has, opposite Figures 5 to 9, the following lines: - In the plane transverse to the front 2A and rear 2B faces and the inner side of the hinge, that is to say on the side towards which the movable part is closed, the internal cavity 20 present on its periphery from the rear face 2B, a curved line of stop 40 with concavity turned towards the hollow space of the cavity / towards the male form 21, and an angular recess 41 which follows the curved line 40 and joins the front face 2A, said recess being facing away from hollow space / away from male form 21.
  • the periphery of the cavity 20 comprises a support line 42 and a clearance line 43.
  • the curved line 40 defines the degree of closure of the movable part / the branch 31 of glasses.
  • the angular recess 41 provides a volume for the location of the free end 33 of the pivoting portion 30 in the fully open position of the movable part / the branch 31, so that this free end remains housed in the cavity without move from the outside of the body of the fixed part 2 to the fully open position of the hinge.
  • the bearing line 42 constitutes a stop surface in the open end position of the movable part 3.
  • the bearing line 42 defines the maximum degree of opening of the movable part / of the branch 31; here, this support line 42 is straight and inclined from then the rear face 2B towards the front face 2A, converging towards the interior of the hollow space of the cavity up to the start of the clearance line 43.
  • the clearance line 43 allows the overall insertion of the pivoting portion 30 inside the cavity 20 without the latter, in the fully open position, does not protrude outside the body of the fixed part 2. In addition, it serves as a stop surface to unlock the assembly of the movable part 2 to the male form 21.
  • the release line 43 is here perpendicular to the front face 2A.
  • the relief line 43 is arranged so that in the closed position of the movable part 3, a space 44 is formed between said relief line and said movable part 3, in particular between said relief line 43 and the free end. 33.
  • This space 44 makes it possible to be able to effect a movement to separate the female form 32 of the movable part 3 in the direction of the release line 43 when a pushing force (arrow in FIG. 11) is applied to the end 33 (parallel to the front face 2A) to unlock the assembly of the mobile part 3.
  • the movable part 3 comprises the pivoting portion 30 which is able to cooperate with the fixed part 2 by pivoting around the male form 21, and the extension portion 31 which is external to the fixed part 2.
  • the pivoting portion 30 comprises a female form 32 to cooperate with the male form 21 of the fixed part 2.
  • the movable part 3 has the general shape of a flat key, or also called an open-end wrench, the pivoting portion 30 having two spaced pins 33 and 34 and leaving the female shape 32 between them.
  • the pin 33 constitutes the free end of the movable portion, it is longer / in sail lie relative to the other pin 34 (in a direction opposite to the female form 32); this is the preferred variant already described in part above in order to provide a movable part 3 which is removable after having been assembled to the fixed part.
  • the pins 33 and 34 are coplanar and have two op posed main faces which are opposite the lower and upper faces of the housing 20 of the fixed part.
  • the pins 33 and 34 define by their internal edges the walls of the female form 32.
  • the female form 32 is through the thickness of said pivoting portion 30 or said pins 33 and 34, from one of the main faces to the other opposite face.
  • the female form 32 has a circular stop hole 32A, intended to cooperate with the male form 21 of the fixed part.
  • the circular orifice 32 forms the bottom of the fork between the two pins 33 and 34.
  • the circular orifice 32A is closed on a part of its periphery by the pins 33 and 34, and open on a circular section 32 'corresponding to minimum spacing between pins 33 and 34.
  • the female form 32 further comprises a longitudinal groove 32B which connects the circular orifice 32A to the outside of the pins 33 and 34.
  • This longitudinal groove 32B has its walls corresponding to the internal edges of the pins 33 and 34.
  • the two opposite walls of the groove are not strictly parallel and are spaced apart by being divergent from the circular orifice 32A towards the exterior of the pins, on the opposite side.
  • the longitudinal groove 32B is intended to cooperate with the flats 24A and 24B of the male form 21, during the introduction or withdrawal of the movable part 3 in or respectively out of the fixed part 2.
  • the geometry of the male 21 and female 32 forms is such that when the circular orifice 32A of the female form 32 surrounds the male form 21 ( Figures 5 and 6), the pins 33 and 34 are angularly offset relative to the planes of the flats 24A and 24B regardless of the closed or open position of the mobile part 2.
  • the flats 24A and 24B are not perfectly aligned with the longitudinal groove 32B, ensuring that the female form 32 cannot come out of the form male 21, and consequently locking the coupling of the movable part to the fixed part.
  • FIG. 10 illustrates four schematic steps for assembling the movable part 3 to the fixed part 2.
  • the movable part 3 is gripped by its extension portion 31, and the pivoting portion 30 is positioned facing the window 22 of the rear face 2B of the fixed part 2; the pivoting portion 30 is approached towards the first window 22 such that the axis of the longitudinal groove 32 is at an angle with respect to the plane of said window 22.
  • the pivoting portion 30 is introduced into the cavity interior 20, such that the pin 33 (the longest) is on one side in abutment against the support line 42, and on the other side (wall of the longitudinal groove 32B) in abutment against the female form 21 for start the engagement of the female form 32 around the male form 21.
  • the engagement is continued by longitudinal translation, the walls of the groove 32B serving as a guide until the circular orifice 32A embraces the male form 21 brought into abutment; the hinge is then in the closed position.
  • the flared shape at the mouth of the longitudinal groove 32B facilitates the insertion of the portion 30 then the guiding into the orifice 32A.
  • the last step consists of opening the hinge if necessary: the extension portion 31 is pivoted as illustrated by the arrow F of the Figure 10, which rotates the pivoting portion 30 around the female form 21, and positions the pin 33 inside the interior cavity 20.
  • Figure 11 illustrates three schematic steps for uncoupling the movable part 3.
  • the hinge 1 must be in the closed position in order to make accessible the free end 33 of the movable part 3; pressure is exerted on said free end / pin 33 perpendicular to the longitudinal axis of said pin 33 (arrow F ') and in the direction of the first window 22.
  • the second step pressing the pin 33 of one hand of the user, while pulling on the extension portion 31 with the other hand, this causes a slight separation of the spindle 33 and consequently a slight separation of the circular orifice 32A, which makes it possible to disconnect the circular orifice 32A of the male form 21.
  • the flats 24A and 24B are in contact with the internal walls of the longitudinal groove 32, and it suffices to pull on the extension portion 31 towards the opposite side of the fixed part 3 of the hinge, to release the longitudinal groove 32B out of the male part 21 and to release the pivoting portion 30 out of the fixed part 2.
  • the hinge 1 is then completely uncoupled as illustrated ustrée on the last step.

Abstract

Plastic hinge (1) comprising a first portion (2) and a second portion (3), one of the portions being articulated relative to the other portion, the first portion (2) having a male shape (21) confined within a recess (20) that is provided with at least one first window (22) for accessing the male shape (21), whilst the second portion (3) is capable of passing through the first window (22) of the first portion and has a female shape (32) for cooperating with the male shape (21) by pivotally engaging around the latter.

Description

Description Description
Titre de l'invention : CHARNIERE EN MATIERE PLASTIQUETitle of the invention: PLASTIC HINGE
[0001] L'invention concerne une charnière en matière plastique, de préférence en bio plastique, pour rendre mobile une pièce par rapport à une autre pièce, notamment la charnière pouvant directement former deux pièces constitutives d'un dispositif. The invention relates to a plastic hinge, preferably bioplastic, to make a part movable relative to another part, in particular the hinge can directly form two constituent parts of a device.
[0002] L'invention sera plus particulièrement décrite, sans toutefois y être limitée, au regard d'une application de lunetterie, la charnière formant directement deux pièces constitutives d'une paire de lunettes, à savoir une branche de lunette tandis que l'autre pièce est la face de la monture de lunettes, en particulier un tenon. The invention will be more particularly described, without however being limited thereto, with regard to an eyewear application, the hinge directly forming two constituent parts of a pair of glasses, namely a spectacle branch while the another part is the face of the spectacle frame, in particular a tenon.
[0003] La charnière de l'invention s'applique à toute utilisation pour laquelle une pièce doit être mobile par rapport une autre. Les applications sont très diversifiées. A titre d'autres exemples nullement limitatifs, l'invention s'applique dans le domaine de la bagagerie, des cuisines (portes de placard par exemple), du nautisme, des caravanes, des camping-cars. The hinge of the invention applies to any use for which a part must be movable relative to another. The applications are very diverse. By way of other non-limiting examples, the invention applies in the field of luggage storage, kitchens (cupboard doors for example), boating, caravans, motor homes.
[0004] Une charnière faite uniquement en matière plastique présente notamment l'avantage de réduire le nombre de pièces la constituant. A hinge made only of plastic material has the particular advantage of reducing the number of parts constituting it.
[0005] Un exemple de charnière en matière plastique comprend deux parties qui sont reliées l'une à l'autre par une ligne de pliage. Cependant, une telle charnière est diffici lement envisageable pour des branches de lunettes, car en position repliée des branches hors utilisation, les branches ont tendance à se rouvrir. [0005] An example of a plastic hinge comprises two parts which are connected to each other by a fold line. However, such a hinge is difficult to envisage for the arms of glasses, because in the folded position of the arms when not in use, the arms have a tendency to reopen.
[0006] Par ailleurs, il est connu en tant que charnière en matière plastique pour lu nettes, un élément de liaison du type en caoutchouc (à fonction ressort) positionné à la jonction de chacune des branches de lunettes et de la face de la monture (en parti culier des tenons de la monture), chaque branche et chaque face (tenon) ayant des évidements appropriés pour loger l'élément de liaison. Toutefois, ce type de liaison et de fixation ne permet pas de proposer des lunettes avec branches interchangeables, pour par exemple modifier l'aspect esthétique des lunettes. [0006] Furthermore, it is known as a plastic hinge for clear read, a connecting element of the rubber type (with spring function) positioned at the junction of each of the arms of the glasses and of the face of the frame (in particular the tenons of the frame), each branch and each face (tenon) having suitable recesses to accommodate the connecting element. However, this type of connection and fixing does not make it possible to offer glasses with interchangeable temples, for example to modify the aesthetic appearance of the glasses.
[0007] L'invention a donc pour but de proposer une nouvelle charnière en matière plastique, de préférence en bioplastique, qui ne soit qu'en deux parties, qui soit esthé tique, en particulier que son mécanisme d'articulation soit invisible, puisse être simple de mise en œuvre, c'est-à-dire que les deux parties puissent aisément s'assembler, et avantageusement que les deux parties puissent être amovibles. [0007] The aim of the invention is therefore to provide a new hinge made of plastic, preferably of bioplastic, which is only in two parts, which is aesthetic, in particular that its articulation mechanism is invisible, can be simple implementation, that is to say that the two parts can easily be assembled, and advantageously that the two parts can be removable.
[0008] Selon l'invention, la charnière est en matière plastique, en particulier en ma tière bioplastique, et ne comporte que deux parties, une première partie et une se conde partie, l'une des parties étant articulée par rapport à l'autre partie, la première partie comportant une forme mâle enfermée dans une cavité intérieure/un logement pourvu d'au moins une fenêtre, dite première fenêtre, pour accéder jusqu'à la forme mâle, tandis que la seconde partie est apte à traverser la fenêtre de la première partie et comporte une forme femelle pour coopérer avec la forme mâle par engagement au tour de celle-ci et par pivotement. According to the invention, the hinge is made of plastic, in particular of bioplastic material, and has only two parts, a first part and a second part, one of the parts being articulated relative to the other part, the first part comprising a male form enclosed in an interior cavity / a housing provided with at least one window, called the first window, to access up to the male form, while the second part is able to pass through the window of the first part and has a female form to cooperate with the male form by engagement around the latter and by pivoting.
[0009] La première partie comporte un corps aux faces fermées qui comprend, d'une part, une cavité intérieure dotée d'une unique forme mâle, et au moins sur l'une des faces externes, au moins une fenêtre débouchant dans la cavité intérieure, tandis que la seconde partie comporte un corps qui comprend une portion dotée d'une forme fe melle et logée dans la cavité intérieure en position montée de l'une partie sur l'autre, la forme femelle coopérant par pivotement avec la forme mâle. The first part comprises a body with closed faces which comprises, on the one hand, an internal cavity having a single male shape, and at least on one of the external faces, at least one window opening into the cavity interior, while the second part comprises a body which comprises a portion provided with a female form and housed in the internal cavity in a mounted position of one part on the other, the female form cooperating by pivoting with the male form .
[0010] Ainsi, la matière plastique engendre une charnière légère (gain de poids pour la charnière et le produit intégrant une telle charnière) et ne se détériorant pas au cours du temps. Une charnière en matière plastique ne présente pas de mécanisme risquant de s'abîmer comme dans une charnière usuelle. De plus, la charnière en matière plas tique est facilement recyclable (sans pièce métallique à désolidariser). Par ailleurs, l'unicité de la forme mâle simplifie la conception de la charnière. Le mécanisme de pi votement/d'articulation de la charnière est en outre invisible par le logement des formes mâle et femelle dans une cavité intérieure à un corps plein aux faces fermées. En outre, cette conception de charnière assure une rigidité du mécanisme en position ouverte. [0010] Thus, the plastic material generates a light hinge (weight saving for the hinge and the product incorporating such a hinge) and does not deteriorate over time. A plastic hinge does not have a mechanism that risks being damaged as in a usual hinge. In addition, the plastic hinge is easily recyclable (no metal part to separate). Moreover, the uniqueness of the male form simplifies the design of the hinge. The mechanism of pi votement / articulation of the hinge is also invisible by the housing of the male and female forms in a cavity inside a solid body with closed faces. In addition, this hinge design ensures rigidity of the mechanism in the open position.
[0011] La forme mâle constitue l'axe de rotation de la charnière. The male form constitutes the axis of rotation of the hinge.
[0012] La charnière selon l'invention est dépourvue de visserie, ce qui évite les mul tiples inconvénients de l'art antérieur à visserie, notamment par rapport au risque de désolidarisation du système de charnière, à l'alourdissement de la charnière, à la né cessité selon les utilisations de faire appel à de la manutention (spécialisée) pour le montage/démontage. The hinge according to the invention is devoid of screws, which avoids the multiple drawbacks of the prior art with screws, in particular in relation to the risk of separation of the hinge system, heavier hinge, the need, depending on the uses, to call on handling (specialized) for assembly / disassembly.
[0013] Selon une caractéristique, les deux parties de la charnière sont fabriquées indé pendamment et sont assemblées l'une à l'autre après fabrication, de préférence sont amovibles après avoir été assemblées. L'amovibilité permet une grande diversité d'ap plications. Elle permet une interchangeabilité d'une partie par rapport à l'autre. Pour la lunetterie, cela permet à loisir de changer de branches de lunettes ou de monture, en toute simplicité et rapidité. [0013] According to one characteristic, the two parts of the hinge are manufactured independently and are assembled to one another after manufacture, preferably are removable after having been assembled. Removability allows a wide variety of applications. It allows interchangeability of one part with respect to the other. For eyewear, this allows you to easily and quickly change the temples of glasses or frames.
[0014] Les deux parties de la charnière peuvent être fabriquées par impression 3D.The two parts of the hinge can be manufactured by 3D printing.
Cela simplifie la fabrication sans être onéreux. En effet, il n'y a pas de moule à conce voir et la manutention est limitée. This simplifies the manufacture without being expensive. In fact, there is no mold to design and handling is limited.
[0015] De préférence, la matière plastique est du bioplastique, notamment en polya mide 11 chargé en farine végétale. Cette matière plastique est ainsi biosourcée et recy clable. Preferably, the plastic material is bioplastic, in particular polyamide 11 loaded with vegetable flour. This plastic material is thus biobased and recyclable.
[0016] Dans une des applications de la charnière, la seconde partie avec la forme fe melle constitue une branche d'une paire de lunettes et la première partie avec la forme mâle constitue un tenon de ladite paire de lunettes auquel est associée la branche. In one of the applications of the hinge, the second part with the female form constitutes a branch of a pair of glasses and the first part with the male form constitutes a tenon of said pair of glasses with which the branch is associated.
[0017] Selon un mode de réalisation, les formes mâle et femelle coopèrent par clip- sage. [0017] According to one embodiment, the male and female forms cooperate by clipping.
[0018] Selon un autre mode de réalisation, les formes mâle et femelle ont chacune une géométrie et des dimensions conçues de sorte que pour l'accouplement des deux parties de charnière, la forme femelle coopère par coulissement autour de la forme mâle (pour assurer un engagement par translation de la forme femelle sur la forme mâle) jusqu'à une mise en butée de la forme mâle dans un orifice circulaire (de fin de course) de la forme femelle .La forme mâle présente une forme générale cylindrique et comporte deux méplats opposés et deux surfaces semi-circulaires opposées. La forme mâle comprend donc sur sa périphérie deux faces opposées à pans droits, et deux faces opposées symétriques en arc-de-cercle à convexité tournée vers l'extérieur, pro curant respectivement, les deux méplats opposés et deux surfaces semi-circulaires. Les méplats s'étendent sur toute la hauteur de la forme mâle selon l'axe de rotation. La forme femelle comporte un orifice circulaire de butée et une gorge longitudinale de coulissement/de guidage s'étendant depuis l'orifice circulaire et débouchant librement à l'opposé de l'orifice circulaire, de préférence la gorge longitudinale étant à parois di vergentes depuis l'orifice circulaire. Lorsque la forme mâle est dans l'orifice circulaire de la forme femelle, au moins l'un des méplats de la forme mâle n'est plus aligné avec l'une des parois de la gorge longitudinale, ce qui assure le verrouillage de la forme fe melle sur la forme mâle empêchant tout coulissement en sens inverse de la forme fe melle, et empêchant donc toute extraction. According to another embodiment, the male and female forms each have a geometry and dimensions designed so that for the coupling of the two hinge parts, the female form cooperates by sliding around the male form (to ensure an engagement by translation of the female form on the male form) until the male form comes into abutment in a circular orifice (end of travel) of the female form. The male form has a generally cylindrical shape and has two opposing flats and two opposing semicircular surfaces. The male form therefore comprises on its periphery two opposite faces with straight sides, and two opposite faces symmetrical in an arc of a circle with a convexity facing outwards, respectively providing the two opposite flats and two semi-circular surfaces. The flats extend over the entire height of the male form along the axis of rotation. The female form has a circular stopper orifice and a longitudinal sliding / guide groove extending from the circular orifice and opening freely opposite the circular orifice, preferably the longitudinal groove having di verging walls since the circular orifice. When the male form is in the circular orifice of the female form, at least one of the flats of the male form is no longer aligned with one of the walls of the longitudinal groove, which ensures the locking of the form female on the male form preventing any sliding in the opposite direction to the female form, and therefore preventing any extraction.
[0019] Avantageusement, les méplats sont dans des plans qui présentent un angle dis tinct de 90° par rapport au plan de la (première) fenêtre d'accès au logement de ladite forme mâle. La non-orthogonalité au plan de la fenêtre d'accès au logement, participe au verrouillage de la forme femelle autour de la forme mâle Advantageously, the flats are in planes which have a distinct angle of 90 ° relative to the plane of the (first) access window to the housing of said male form. The non-orthogonality to the plane of the housing access window participates in locking the female form around the male form
[0020] Selon une caractéristique, la seconde partie de charnière dotée de la forme fe melle présente en vue de dessus une forme générale de clé à fourche, et comprend deux broches espacées qui délimitent la forme femelle (partie échancrée), de préfé rence l'une des broches étant plus longue que l'autre. La seconde partie comprend donc une branche, partie de préhension qui permettra d'agir d'une part, sur le pivote ment de la charnière lorsque ladite seconde partie est la partie mobile de la charnière, et d'autre part sur l'accouplement et le désaccouplement de ladite seconde partie par rapport à la première partie de charnière. Les deux broches espacées ménagent la forme femelle. Le fait que l'une des broches soit plus longue que l'autre facilite l'as semblage de la forme femelle sur la forme mâle et permet de rendre amovible après assemblage ladite seconde partie de charnière. [0020] According to one characteristic, the second hinge part provided with the female form has, in top view, the general shape of an open-ended wrench, and comprises two spaced pins which define the female form (indented part), preferably the 'one of the pins being longer than the other. The second part therefore comprises a branch, a gripping part which will make it possible to act, on the one hand, on the pivoting of the hinge when said second part is the movable part of the hinge, and on the other hand on the coupling and the uncoupling of said second part from the first hinge part. The two spaced pins protect the female form. The fact that one of the pins is longer than the other facilitates the assembly of the female form on the male form and makes it possible to make said second hinge part removable after assembly.
[0021] De préférence, la forme femelle comporte un orifice circulaire (visible en vue de dessus) qui est ouvert en partie en périphérie, et une gorge longitudinale s'éten dant depuis l'orifice circulaire et débouchant librement à l'opposé de l'orifice, de pré férence la gorge longitudinale étant à parois droites et divergentes vers l'extérieur de- puis l'orifice circulaire (ou convergentes depuis l'extérieur vers l'orifice). Avantageuse ment, lorsque la forme femelle est assemblée à la forme mâle (en particulier l'orifice circulaire coopère avec la forme mâle), la gorge longitudinale de la forme femelle est décalée angulairement par rapport aux plans des méplats de la partie mâle cylindrique, c'est-à-dire que les méplats ne sont pas alignés avec les parois de la gorge longitudi nale. Cette configuration garantit un verrouillage du désaccouplement d'une partie par rapport à l'autre, tout en autorisant le pivotement d'une partie par rapport à l'autre. Pour désaccoupler la forme femelle de la forme mâle, il faut appliquer une légère pres sion sur le chant de l'extrémité de l'une des broches de la partie femelle (parallèle ment à la première fenêtre du logement de la première partie pour désaccoupler la branche/la partie mobile de la forme mâle/la partie fixe. Ce léger appui transversal a pour but de légèrement écarter la forme femelle et de mettre en alignement la gorge longitudinale/la partie échancrée de la forme femelle avec les méplats de la forme mâle, afin de pouvoir assurer une translation en sens inverse de la forme femelle. Preferably, the female form comprises a circular orifice (visible in top view) which is partly open at the periphery, and a longitudinal groove extending from the circular orifice and opening freely opposite the 'orifice, preferably the longitudinal groove having straight walls and diverging outwardly from- then the circular orifice (or converging from the outside towards the orifice). Advantageously, when the female form is assembled to the male form (in particular the circular orifice cooperates with the male form), the longitudinal groove of the female form is angularly offset with respect to the planes of the flats of the cylindrical male part, c 'that is, the flats are not aligned with the walls of the longitudinal groove. This configuration guarantees a locking of the uncoupling of one part relative to the other, while allowing pivoting of one part relative to the other. To disconnect the female form from the male form, a slight pressure must be applied on the edge of the end of one of the pins of the female part (parallel to the first window of the housing of the first part to disconnect the branch / the movable part of the male form / the fixed part This slight transverse support is intended to slightly separate the female form and to align the longitudinal groove / the indented part of the female form with the flats of the male form , in order to be able to ensure a translation in the opposite direction of the female form.
[0022] Dans un mode de réalisation préféré, la seconde partie comporte un corps qui présente (à l'opposé de la branche, dans le prolongement de l'une des broches de la clé à fourche) une extrémité distale libre formant une terminaison en saillie par rap port au reste du corps de ladite seconde partie, de préférence ladite extrémité distale étant rendue accessible en position montée de la seconde partie sur la première partie afin de permettre le désaccouplement des deux parties de charnière. Avantageuse ment, la première partie de charnière comporte une seconde fenêtre à l'opposé de la première fenêtre par rapport au logement, seconde fenêtre depuis laquelle est enga gée la seconde partie de charnière, l'extrémité distale en saillie étant accessible depuis cette seconde fenêtre. De préférence, l'extrémité distale dépasse à l'extérieur de la se conde fenêtre en position fermée de la charnière (position fermée de la charnière) et ne dépasse pas en position totalement ouverte de la charnière (c'est-à-dire lorsque l'angle entre les deux parties de charnière est le plus ouvert). C'est sur cette extrémité distale que l'utilisateur appuie pour réaligner les méplats de la forme mâle avec la gorge longitudinale de la forme femelle, afin de désaccoupler les deux parties de char nière. [0023] Selon encore une autre caractéristique, la première partie et la seconde partie comportent des surfaces complémentaires de sorte qu'en position totalement ouverte de la charnière, la charnière forme un ensemble monobloc au profil externe continu. In a preferred embodiment, the second part comprises a body which has (opposite the branch, in the extension of one of the pins of the open-ended wrench) a free distal end forming a terminal in protrusion with respect to the rest of the body of said second part, preferably said distal end being made accessible in the mounted position of the second part on the first part in order to allow the two hinge parts to be uncoupled. Advantageously, the first hinge part comprises a second window opposite the first window with respect to the housing, a second window from which the second hinge part is engaged, the projecting distal end being accessible from this second window. . Preferably, the distal end protrudes outside the second window in the closed position of the hinge (closed position of the hinge) and does not protrude in the fully open position of the hinge (i.e. when the angle between the two hinge parts is the most open). It is on this distal end that the user presses to realign the flats of the male form with the longitudinal groove of the female form, in order to disconnect the two hinge parts. [0023] According to yet another characteristic, the first part and the second part comprise complementary surfaces so that in the fully open position of the hinge, the hinge forms a single unit with a continuous external profile.
[0024] Dans un mode de réalisation, la cavité intérieure/le logement de la première partie présente des parois périphériques dont la géométrie est adaptée à épouser la géométrie des lignes externes du corps de la seconde partie accueillie dans ledit loge ment, en particulier la cavité intérieur/le logement comporte au moins deux lignes op posées servant de butées à la seconde partie respectivement en position totalement ouverte de la charnière et en position totalement fermée de la charnière. In one embodiment, the interior cavity / the housing of the first part has peripheral walls, the geometry of which is adapted to match the geometry of the external lines of the body of the second part accommodated in said housing, in particular the interior cavity / housing comprises at least two op posed lines serving as stops for the second part respectively in the fully open position of the hinge and in the fully closed position of the hinge.
[0025] De préférence, l'angle de la charnière en position totalement ouverte de la charnière est obtus. Preferably, the angle of the hinge in the fully open position of the hinge is obtuse.
[0026] La présente invention est maintenant décrite à l'aide d'exemples uniquement illustratifs et nullement limitatifs de la portée de l'invention, et à partir des illustrations jointes, dans lesquelles : The present invention is now described with the aid of examples which are only illustrative and in no way limitative of the scope of the invention, and from the accompanying illustrations, in which:
[0027] [Fig. 1] ou figure 1 représente une vue en perspective d'un exemple de réalisa tion de la charnière selon l'invention en position totalement ouverte. [0027] [Fig. 1] or Figure 1 shows a perspective view of an embodiment of the hinge according to the invention in the fully open position.
[0028] [Fig. 2] ou figure 2 correspond à une vue de dessus de la charnière de la figure 1. [0028] [Fig. 2] or FIG. 2 corresponds to a top view of the hinge of FIG. 1.
[0029] [Fig. 3] ou figure 3 est une vue en perspective de la charnière en position fer mée. [0029] [Fig. 3] or Figure 3 is a perspective view of the hinge in the closed position.
[0030] [Fig. 4] ou figure 4 correspond à la vue de dessus de la figure 3. [0030] [Fig. 4] or FIG. 4 corresponds to the top view of FIG. 3.
[0031] [Fig. 5] ou figure 5 représente une vue partielle en coupe et de dessus de la charnière en position totalement ouverte. [0031] [Fig. 5] or FIG. 5 shows a partial sectional view from above of the hinge in the fully open position.
[0032] [Fig. 6] ou figure 6 correspond à la figure 5 en position totalement fermée de la charnière. [0032] [Fig. 6] or Figure 6 corresponds to Figure 5 in the fully closed position of the hinge.
[0033] [Fig. 7] ou figure 7 est une vue en perspective plongeante de la première partie de la charnière, dotée de la forme mâle. [0034] [Fig. 8] ou figure 8 est une vue en transparence de la figure 7 avec la seconde partie de la charnière dotée de la forme femelle accouplée à la forme mâle, en position totalement ouverte de la charnière. [0033] [Fig. 7] or Figure 7 is a perspective view from above of the first part of the hinge, with the male form. [0034] [Fig. 8] or FIG. 8 is a transparent view of FIG. 7 with the second part of the hinge provided with the female form coupled to the male form, in the fully open position of the hinge.
[0035] [Fig. 9] ou figure 9 correspond à la figure 8 en position totalement fermée de la charnière. [0035] [Fig. 9] or Figure 9 corresponds to Figure 8 in the fully closed position of the hinge.
[0036] [Fig. 10] ou figure 10 est une vue en coupe et de dessus de la charnière selon, de gauche à droite, différentes étapes d'assemblage/d'accouplement de la partie de charnière dotée de la forme femelle à l'autre partie dotée de la forme mâle. [0036] [Fig. 10] or Figure 10 is a sectional and top view of the hinge according, from left to right, different stages of assembly / coupling of the hinge part provided with the female form to the other part provided with the male form.
[0037] [Fig. 11] ou figure 11 est une vue en coupe et de dessus de la charnière selon différentes étapes pour le désaccouplement. [0037] [Fig. 11] or Figure 11 is a sectional and top view of the hinge in different stages for uncoupling.
[0038] La charnière 1 de l'invention illustrée sur les figures est par exemple utilisée pour une paire de lunettes, sans toutefois y être limitée. The hinge 1 of the invention illustrated in the figures is for example used for a pair of glasses, without however being limited thereto.
[0039] La charnière 1 comporte uniquement deux parties, une première partie 2 qui est dite ici dans l'utilisation visée, la partie fixe, et une seconde partie 3, qui est alors la partie mobile par rapport à la partie fixe. The hinge 1 has only two parts, a first part 2 which is said here in the intended use, the fixed part, and a second part 3, which is then the movable part relative to the fixed part.
[0040] A titre d'exemple, la partie fixe 2 constitue un tenon de monture de lunettes, tandis que la partie mobile 3 constitue une branche des lunettes. [0040] By way of example, the fixed part 2 constitutes an eyeglass frame tenon, while the movable part 3 constitutes a branch of the glasses.
[0041] Les deux parties 2 et 3 de charnière sont chacune dans l'exemple représenté monolithiques et présentent un contour externe adapté à la forme respectivement d'un tenon et d'une branche de lunettes. Selon les utilisations, les deux parties pour raient présenter une géométrie externe différente, pour s'adapter directement à l'ap plication visée. De plus, elles pourraient ne pas former des pièces en tant que telles d'un produit, mais être destinées chacune à être fixée sur deux pièces respectives à as sembler. The two parts 2 and 3 of the hinge are each in the example shown monolithic and have an external contour adapted to the shape of a tenon and a branch of glasses, respectively. Depending on the uses, the two parts could have a different external geometry, to adapt directly to the intended application. In addition, they could not form parts as such of a product, but each be intended to be attached to two respective parts to appear.
[0042] La partie mobile 3 comporte, d'une part, une portion dite pivotante 30 qui est apte à coopérer par pivotement avec la partie fixe 2, et d'autre part, une portion de prolongement 31 qui s'étend en position montée, vers l'opposé de la partie fixe 2. La portion pivotante 30 est destiné à être logée dans une cavité intérieure (ou un loge ment) 20 ménagée à l'intérieur du corps de la partie fixe, tandis que la portion de pro longement 31 est extérieure à la partie fixe 2. Dans l'exemple illustré, la portion de prolongement 31 est longiligne pour constituer le corps principal d'une branche de lu nettes. Cette portion de prolongement peut présenter une autre forme selon la desti nation de la charnière 1. Cette portion de prolongement constitue un moyen de pré hension pour la partie mobile 3. The movable part 3 comprises, on the one hand, a so-called pivoting portion 30 which is able to cooperate by pivoting with the fixed part 2, and on the other hand, an extension portion 31 which extends in the mounted position , towards the opposite of the fixed part 2. The pivoting portion 30 is intended to be housed in an internal cavity (or a housing) 20 formed inside the body of the fixed part, while the extending portion 31 is outside the fixed part 2. In the example illustrated, the portion of extension 31 is elongated to constitute the main body of a branch of net reads. This extension portion may have another shape depending on the destination of the hinge 1. This extension portion constitutes a gripping means for the mobile part 3.
[0043] Pour assurer l'articulation/le pivotement de la charnière, la partie fixe 2 com porte une unique forme mâle 21, tandis que la portion pivotante 30 de la partie mobile 3 comporte une forme femelle 32 apte à coopérer avec la forme mâle 21. To ensure the articulation / pivoting of the hinge, the fixed part 2 carries a single male form 21, while the pivoting portion 30 of the movable part 3 comprises a female form 32 able to cooperate with the male form 21.
[0044] Le corps de la partie fixe 2 est un solide plein. Le corps de la partie fixe 2 pré sente deux faces opposées 2A et 2B. La face 2A est dite par la suite face avant dans le cadre d'une utilisation de la charnière de l'invention pour une paire de lunettes, la face avant 2A constituant la face externe d'un tenon d'une paire de lunettes. La face oppo sée 2B est dite face arrière. Le corps de la partie fixe 2 comporte au moins une pre mière fenêtre 22 sur la face arrière 2B, cette fenêtre communiquant avec la cavité in térieure 20. De préférence, le corps de la partie fixe 2 comporte une seconde fenêtre 23, opposée à la première fenêtre 22 et agencée sur la face avant 2A, cette seconde fenêtre communiquant avec la cavité intérieure 20. Les faces dites supérieure et infé rieure du corps de la partie fixe 2, faces perpendiculaires aux faces avant et arrière, sont pleines. The body of the fixed part 2 is a solid solid. The body of the fixed part 2 has two opposite faces 2A and 2B. The face 2A is referred to hereinafter as the front face in the context of a use of the hinge of the invention for a pair of glasses, the front face 2A constituting the external face of a tenon of a pair of glasses. The opposite face 2B is called the rear face. The body of the fixed part 2 comprises at least a first window 22 on the rear face 2B, this window communicating with the internal cavity 20. Preferably, the body of the fixed part 2 comprises a second window 23, opposite to the first window 22 and arranged on the front face 2A, this second window communicating with the interior cavity 20. The so-called upper and lower faces of the body of the fixed part 2, faces perpendicular to the front and rear faces, are solid.
[0045] La première fenêtre 22 de la partie fixe 2 permet, pour la partie mobile 3 et donc pour la forme femelle 32, l'accès à la cavité intérieure 20 et donc à la forme mâle 21. L'engagement de la forme femelle 32 de la partie mobile 3 se fait via cette pre mière fenêtre 22. The first window 22 of the fixed part 2 allows, for the movable part 3 and therefore for the female form 32, access to the internal cavity 20 and therefore to the male form 21. The engagement of the female form 32 of the mobile part 3 is done via this first window 22.
[0046] Sur les figures 1 et 2, la branche 3 de lunettes est ouverte par rapport au tenon 2 de la monture de lunette, cette vue est donc la vue de face qu'un individu voit en re gardant un utilisateur portant une paire de lunettes avec la charnière 1 de l'invention. Comme visible, la monture reste totalement esthétique, puisque l'extrémité libre 33 (décrite plus loin) de la portion pivotante 30 de la partie mobile de la charnière / de la branche 3 reste coplanaire avec la face avant 2A du tenon 2 (face avant de la monture) sans dépasser de cette face. In Figures 1 and 2, the branch 3 of glasses is open with respect to the post 2 of the spectacle frame, this view is therefore the front view that an individual sees while re keeping a user wearing a pair of glasses with the hinge 1 of the invention. As visible, the frame remains completely aesthetic, since the free end 33 (described later) of the pivoting portion 30 of the movable part of the hinge / of the branch 3 remains coplanar with the front face 2A of the tenon 2 (front face of the frame) without protruding from this face.
[0047] Sur les figures 3 et 4 qui correspondent à des vues de la charnière en position fermée et pour laquelle la branche 3 de lunettes est refermée sur la face arrière de la monture, l'extrémité libre 33 de la portion pivotante 30 est légèrement en saillie de la face avant 2A du tenon 2, sans toutefois que ce ne soit gênant, ni inesthétique, puisque dans cette position de branche refermée, l'utilisateur ne porte plus ses lu nettes. Cela en devient même un avantage pour une paire de lunettes à deux branches 31, car les extrémités libres 33 des deux branches 31 en position fermée des char nières, forment des moyens en saillie de la face des lunettes et donc des verres, proté geant les verres en cas de chute des lunettes. Figures 3 and 4 which correspond to views of the hinge in the closed position and for which the branch 3 of glasses is closed on the rear face of the frame, the free end 33 of the pivoting portion 30 protrudes slightly from the front face 2A of the tenon 2, without this being inconvenient or unattractive, since in this position with the branch closed, the user no longer wears his glasses. This even becomes an advantage for a pair of glasses with two branches 31, because the free ends 33 of the two branches 31 in the closed position of the hinges, form means projecting from the face of the glasses and therefore of the glasses, protecting them. glasses if the glasses are dropped.
[0048] En variante, la partie fixe 2 pourrait être plus volumineuse pour loger entière ment l'extrémité libre 33 de la portion pivotante 30 sans que celle-ci ne dépasse de la face avant 2A en position fermée de la charnière. Toutefois, dans le cas d'une fonction amovible de la partie mobile 3 après assemblage avec la partie fixe 2, et comme il sera vu plus loin dans la description de la mise en oeuvre, il est nécessaire de ménager la se conde fenêtre 23 sur la face avant 2A pour rendre accessible l'extrémité distale 33 de la portion pivotante 30 qui aura été logée à l'intérieur de la partie fixe 2. En effet, pour désassembler la partie mobile 3 de la partie fixe 2, il est nécessaire de pouvoir appli quer sur l'extrémité distale 33 une pression depuis l'extérieur. Alternatively, the fixed part 2 could be larger to fully house the free end 33 of the pivoting portion 30 without the latter protruding from the front face 2A in the closed position of the hinge. However, in the case of a removable function of the movable part 3 after assembly with the fixed part 2, and as will be seen later in the description of the implementation, it is necessary to spare the second window 23 on the front face 2A to make accessible the distal end 33 of the pivoting portion 30 which will have been housed inside the fixed part 2. In fact, to disassemble the movable part 3 from the fixed part 2, it is necessary to be able to apply pressure from the outside on the distal end 33.
[0049] Quelle que soit la variante de réalisation, le mécanisme en tant que tel de pivo tement de la charnière (coopération de la partie mâle 21 avec la partie femelle 32) est logé à l'intérieur de la partie fixe 2, et est invisible. Whatever the variant embodiment, the mechanism as such for pivoting the hinge (cooperation of the male part 21 with the female part 32) is housed inside the fixed part 2, and is invisible.
[0050] De préférence, la cavité intérieure 20 est traversante selon l'épaisseur du corps de la partie fixe 2 depuis la face avant 2A jusqu'à la face arrière 2B. La partie fixe 2 pré sente ainsi la première fenêtre 22, dite fenêtre arrière, qui est ménagée dans la face arrière 2B et débouche sur la cavité intérieure 20, et la seconde fenêtre opposée 23, dite fenêtre avant, qui est agencée sur la face avant 2A et débouche sur la cavité inté rieure 20. Preferably, the interior cavity 20 passes through the thickness of the body of the fixed part 2 from the front face 2A to the rear face 2B. The fixed part 2 thus presents the first window 22, called the rear window, which is provided in the rear face 2B and opens onto the interior cavity 20, and the second opposite window 23, called the front window, which is arranged on the front face. 2A and opens into the interior cavity 20.
[0051] La largeur des fenêtres 22 et 23 peut être différente. La largeur de la fenêtre ar rière 22 est adaptée pour laisser la liberté d'amplitude maximale souhaitée à la pièce mobile 3 entre sa position ouverte d'extrémité (figure 5) et sa position fermée d'extré mité (figure 6). The width of the windows 22 and 23 can be different. The width of the rear window 22 is adapted to leave the desired maximum amplitude freedom for the movable part 3 between its open end position (FIG. 5) and its closed end position (FIG. 6).
[0052] En regard des figures 5 à 9, la cavité intérieure 20 de la partie fixe 2 comporte la forme mâle 21, et est destinée à loger la portion pivotante 30 de la partie mobile 3. La forme mâle 21 procure un axe de pivotement pour la portion pivotante 30 de la char nière. La portion pivotante 30 coopère avec la forme mâle 21 en rotation et sans jeu. [0053] La forme mâle 21 est agencée sensiblement au centre de la cavité intérieure 20 qui présente un volume creux autour de ladite forme mâle pour laisser de la place à l'agencement de la portion pivotante 30 de la partie mobile 3. With reference to Figures 5 to 9, the internal cavity 20 of the fixed part 2 comprises the male form 21, and is intended to house the pivoting portion 30 of the movable part 3. The male form 21 provides a pivot axis for the pivoting portion 30 of the hinge. The pivoting portion 30 cooperates with the male form 21 in rotation and without play. [0053] The male form 21 is arranged substantially in the center of the internal cavity 20 which has a hollow volume around said male form to leave room for it. arrangement of the pivoting portion 30 of the movable part 3.
[0054] La forme mâle 21 forme comme un téton. The male form 21 forms like a stud.
[0055] La forme mâle 21 est cylindrique, de section uniforme selon toute la hauteur/ l'épaisseur du cylindre. La base ou section du cylindrique est de géométrie hybride, comprenant deux côtés opposés droits, et deux côtés opposés symétriques en arc-de- cercle à convexité tournée vers l'extérieur du cylindre. Autrement dit, la forme mâle cylindrique comporte une paroi périphérique présentant deux méplats opposés 24A et 24B (sur toute la hauteur) et deux surfaces opposées bombées en arc-de-cercle, dites surfaces semi-circulaires, 25A et 25B. Les surfaces semi-circulaires 25A et 25B fournis sent Taxe de pivotement de la charnière selon toute la hauteur/l'épaisseur de la partie mâle 21. The male form 21 is cylindrical, of uniform section along the entire height / thickness of the cylinder. The base or section of the cylindrical is of hybrid geometry, comprising two opposite straight sides, and two opposite sides symmetrical in an arc of a circle with a convexity facing the outside of the cylinder. In other words, the cylindrical male form comprises a peripheral wall having two opposite flats 24A and 24B (over the entire height) and two opposite surfaces curved in an arc of a circle, called semi-circular surfaces, 25A and 25B. The semi-circular surfaces 25A and 25B supplied have the hinge pivot rate along the full height / thickness of the male part 21.
[0056] Comme il sera vu ultérieurement, les méplats 24A et 24B forment des surfaces planes de guidage et d'appui lors de l'assemblage de la partie mobile 3. Lorsque la forme femelle 31 est en prise avec la forme mâle 21, les méplats participent au ver rouillage d'assemblage de la partie mobile 3 dans la partie fixe 2, sans pour autant em pêcher le pivotement de ladite partie mobile. As will be seen later, the flats 24A and 24B form flat guiding and bearing surfaces during assembly of the movable part 3. When the female form 31 is engaged with the male form 21, the flats participate in the worm assembly rusting of the movable part 3 in the fixed part 2, without preventing the pivoting of said movable part.
[0057] La cavité intérieure 20 de la partie fixe 2 présente des dimensions/un volume pour procurer une liberté de mouvement à la partie mobile lors de son pivotement entre ses deux positions d'extrémité fermée et ouverte, ainsi qu'un périmètre dont les lignes sont adaptées pour épouser les lignes extérieures de la portion de pivotement 30 de la partie mobile 3 de sorte que ladite portion de pivotement 30 puisse être gui dée et s'appuyer contre des surfaces de butée entre sa position fermée et sa position totalement ouverte. The interior cavity 20 of the fixed part 2 has dimensions / a volume to provide freedom of movement to the movable part during its pivoting between its two closed and open end positions, as well as a perimeter of which the The lines are adapted to follow the outer lines of the pivot portion 30 of the movable part 3 so that said pivot portion 30 can be guided and rest against abutment surfaces between its closed position and its fully open position.
[0058] Dans l'exemple illustré quant à la forme de la portion de pivotement 30 de la partie mobile 3, la cavité intérieure 20 présente, en regard des figures 5 à 9, les lignes suivantes : - Dans le plan transversal aux faces avant 2A et arrière 2B et du côté intérieur de la charnière, c'est-à-dire du côté vers lequel la partie mobile est refermée, la cavité inté rieure 20 présente sur sa périphérie depuis la face arrière 2B, une ligne courbe de bu tée 40 à concavité tournée vers l'espace creux de la cavité/vers la forme mâle 21, et un décrochement angulaire 41 qui fait suite à la ligne courbe 40 et rejoint la face avant 2A, ledit décrochement étant tourné vers l'opposé de l'espace creux/l'opposé de la forme mâle 21. In the example illustrated as to the shape of the pivot portion 30 of the movable part 3, the internal cavity 20 has, opposite Figures 5 to 9, the following lines: - In the plane transverse to the front 2A and rear 2B faces and the inner side of the hinge, that is to say on the side towards which the movable part is closed, the internal cavity 20 present on its periphery from the rear face 2B, a curved line of stop 40 with concavity turned towards the hollow space of the cavity / towards the male form 21, and an angular recess 41 which follows the curved line 40 and joins the front face 2A, said recess being facing away from hollow space / away from male form 21.
- A l'opposé des lignes 40 et 41 et depuis la face arrière 2B, la périphérie de la cavité 20 comprend une ligne d'appui 42 et une ligne de dégagement 43. - Opposite the lines 40 and 41 and from the rear face 2B, the periphery of the cavity 20 comprises a support line 42 and a clearance line 43.
[0059] La ligne courbe 40 définit le degré de fermeture de la partie mobile/la branche 31 de lunettes. The curved line 40 defines the degree of closure of the movable part / the branch 31 of glasses.
[0060] Le décrochement angulaire 41 ménage un volume pour l'emplacement de l'ex trémité libre 33 de la portion pivotante 30 en position totalement ouverte de la partie mobile/la branche 31, afin que cette extrémité libre reste logée dans la cavité sans dé passer de l'extérieur du corps de la partie fixe 2 en position totalement ouverte de la charnière. The angular recess 41 provides a volume for the location of the free end 33 of the pivoting portion 30 in the fully open position of the movable part / the branch 31, so that this free end remains housed in the cavity without move from the outside of the body of the fixed part 2 to the fully open position of the hinge.
[0061] La ligne d'appui 42 constitue une surface de butée en position ouverte d'extré mité de la partie mobile 3. La ligne d'appui 42 définit le degré maximal d'ouverture de la partie mobile/de la branche 31; ici, cette ligne d'appui 42 est droite et inclinée de puis la face arrière 2B en direction de la face avant 2A en convergeant vers l'intérieur de l'espace creux de la cavité jusqu'au début de la ligne de dégagement 43. The bearing line 42 constitutes a stop surface in the open end position of the movable part 3. The bearing line 42 defines the maximum degree of opening of the movable part / of the branch 31; here, this support line 42 is straight and inclined from then the rear face 2B towards the front face 2A, converging towards the interior of the hollow space of the cavity up to the start of the clearance line 43.
[0062] La ligne de dégagement 43 permet l'insertion globale de la portion pivotante 30 à l'intérieur de la cavité 20 sans que celle-ci, en position totalement ouverte, ne dé passe hors du corps de la partie fixe 2. En outre, elle sert de surface de butée pour dé verrouiller l'assemblage de la partie mobile 2 à la forme mâle 21. La ligne de dégage ment 43 est ici perpendiculaire à la face avant 2A. La ligne de dégagement 43 est agen cée de façon qu'en position fermée de la partie mobile 3, un espace 44 soit ménagé entre ladite ligne de dégagement et ladite partie mobile 3, en particulier entre ladite ligne de dégagement 43 et l'extrémité libre 33. Cet espace 44 permet de pouvoir effec tuer un mouvement d'écartement de la forme femelle 32 de la partie mobile 3 en di rection de la ligne de dégagement 43 lorsqu'une force de poussée (flèche de la figure 11) est appliquée sur l'extrémité 33 (parallèlement à la face avant 2A) pour déverrouil ler l'assemblage de la partie mobile 3. The clearance line 43 allows the overall insertion of the pivoting portion 30 inside the cavity 20 without the latter, in the fully open position, does not protrude outside the body of the fixed part 2. In In addition, it serves as a stop surface to unlock the assembly of the movable part 2 to the male form 21. The release line 43 is here perpendicular to the front face 2A. The relief line 43 is arranged so that in the closed position of the movable part 3, a space 44 is formed between said relief line and said movable part 3, in particular between said relief line 43 and the free end. 33. This space 44 makes it possible to be able to effect a movement to separate the female form 32 of the movable part 3 in the direction of the release line 43 when a pushing force (arrow in FIG. 11) is applied to the end 33 (parallel to the front face 2A) to unlock the assembly of the mobile part 3.
[0063] La partie mobile 3 comporte la portion pivotante 30 qui est apte à coopérer avec la partie fixe 2 en pivotant autour de la forme mâle 21, et la portion de prolonge ment 31 qui est extérieure à la partie fixe 2. The movable part 3 comprises the pivoting portion 30 which is able to cooperate with the fixed part 2 by pivoting around the male form 21, and the extension portion 31 which is external to the fixed part 2.
[0064] En regard des figures 5, 6, 8 et 9, la portion pivotante 30 comporte une forme femelle 32 pour coopérer avec la forme mâle 21 de la partie fixe 2. [0064] With reference to Figures 5, 6, 8 and 9, the pivoting portion 30 comprises a female form 32 to cooperate with the male form 21 of the fixed part 2.
[0065] Dans le mode de réalisation illustré, la partie mobile 3 présente une forme gé nérale de clé plate, ou encore dite clé à fourche, la portion pivotante 30 présentant deux broches 33 et 34 espacées et ménageant entre elles la forme femelle 32. La broche 33 constitue l'extrémité libre de la portion mobile, elle est plus longue/en sail lie par rapport à l'autre broche 34 (dans une direction opposée à la forme femelle 32) ; il s'agit de la variante préférée déjà décrite en partie plus haut afin de procurer une partie mobile 3 qui est amovible après avoir été assemblée à la partie fixe. In the illustrated embodiment, the movable part 3 has the general shape of a flat key, or also called an open-end wrench, the pivoting portion 30 having two spaced pins 33 and 34 and leaving the female shape 32 between them. The pin 33 constitutes the free end of the movable portion, it is longer / in sail lie relative to the other pin 34 (in a direction opposite to the female form 32); this is the preferred variant already described in part above in order to provide a movable part 3 which is removable after having been assembled to the fixed part.
[0066] Les broches 33 et 34 sont coplanaires et présentent deux faces principales op posées qui sont en regard des faces inférieure et supérieure du logement 20 de la par tie fixe. Les broches 33 et 34 délimitent par leurs chants internes les parois de la forme femelle 32. The pins 33 and 34 are coplanar and have two op posed main faces which are opposite the lower and upper faces of the housing 20 of the fixed part. The pins 33 and 34 define by their internal edges the walls of the female form 32.
[0067] La forme femelle 32 est traversante selon l'épaisseur de ladite portion pivo tante 30 ou desdites broches 33 et 34, depuis l'une des faces principales à l'autre face opposée. The female form 32 is through the thickness of said pivoting portion 30 or said pins 33 and 34, from one of the main faces to the other opposite face.
[0068] La forme femelle 32 présente un orifice circulaire 32A de butée, destiné à coo pérer avec la forme mâle 21 de la partie fixe. L'orifice circulaire 32 forme le fond de la fourche entre les deux broches 33 et 34. L'orifice circulaire 32A est fermé sur une par tie de sa périphérie par les broches 33 et 34, et ouvert sur une section circulaire 32' correspondant à l'espacement minimal entre les broches 33 et 34. The female form 32 has a circular stop hole 32A, intended to cooperate with the male form 21 of the fixed part. The circular orifice 32 forms the bottom of the fork between the two pins 33 and 34. The circular orifice 32A is closed on a part of its periphery by the pins 33 and 34, and open on a circular section 32 'corresponding to minimum spacing between pins 33 and 34.
[0069] En position de coopération de l'orifice circulaire 32A avec la forme mâle 21, il n'y a aucun jeu, tout en autorisant le pivotement. In the position of cooperation of the circular orifice 32A with the male form 21, there is no play, while allowing pivoting.
[0070] De préférence, la forme femelle 32 comporte en outre une gorge longitudinale 32B qui relie l'orifice circulaire 32A à l'extérieur des broches 33 et 34. Cette gorge lon gitudinale 32B présente ses parois correspondant aux chants internes des broches 33 et 34. De préférence, les deux parois opposées de la gorge ne sont pas strictement pa rallèles et sont écartées en étant divergentes depuis l'orifice circulaire 32A vers l'exté rieur des broches, à l'opposé. Preferably, the female form 32 further comprises a longitudinal groove 32B which connects the circular orifice 32A to the outside of the pins 33 and 34. This longitudinal groove 32B has its walls corresponding to the internal edges of the pins 33 and 34. Preferably, the two opposite walls of the groove are not strictly parallel and are spaced apart by being divergent from the circular orifice 32A towards the exterior of the pins, on the opposite side.
[0071] La gorge longitudinale 32B est destinée à coopérer avec les méplats 24A et 24B de la forme mâle 21, lors de l'introduction ou du retrait de la partie mobile 3 dans ou respectivement hors de la partie fixe 2. The longitudinal groove 32B is intended to cooperate with the flats 24A and 24B of the male form 21, during the introduction or withdrawal of the movable part 3 in or respectively out of the fixed part 2.
[0072] La géométrie des formes mâle 21 et femelle 32 est telle que lorsque l'orifice cir culaire 32A de la forme femelle 32 entoure la forme mâle 21 (figures 5 et 6), les broches 33 et 34 sont décalées angulairement par rapport aux plans des méplats 24A et 24B quelle que soit la position fermée ou ouverte de la partie mobile 2. Ainsi, les méplats 24A et 24B ne sont pas alignés parfaitement avec la gorge longitudinale 32B, garantissant que la forme femelle 32 ne puisse sortir de la forme mâle 21, et par con séquent verrouillant l'accouplement de la partie mobile à la partie fixe. The geometry of the male 21 and female 32 forms is such that when the circular orifice 32A of the female form 32 surrounds the male form 21 (Figures 5 and 6), the pins 33 and 34 are angularly offset relative to the planes of the flats 24A and 24B regardless of the closed or open position of the mobile part 2. Thus, the flats 24A and 24B are not perfectly aligned with the longitudinal groove 32B, ensuring that the female form 32 cannot come out of the form male 21, and consequently locking the coupling of the movable part to the fixed part.
[0073] La mise en oeuvre de la charnière 1 de l'invention est à présent décrite en re gard des figures 10 et 11. The implementation of the hinge 1 of the invention is now described with reference to Figures 10 and 11.
[0074] La figure 10 illustre quatre étapes schématiques pour assembler la partie mo bile 3 à la partie fixe 2. Tout d'abord en première étape, la partie mobile 3 est saisie par sa portion de prolongement 31, et la portion pivotante 30 est positionnée face à la fenêtre 22 de la face arrière 2B de la partie fixe 2 ; la portion pivotante 30 est appro chée vers la première fenêtre 22 de telle manière que l'axe de la gorge longitudinale 32 est de biais par rapport au plan de ladite fenêtre 22. Puis en deuxième étape, la portion pivotante 30 est introduite dans la cavité intérieure 20, telle que la broche 33 (la plus longue) soit d'un côté en butée contre la ligne d'appui 42, et de l'autre côté (paroi de la gorge longitudinale 32B) en butée contre la forme femelle 21 pour débuter l'engagement de la forme femelle 32 autour de la forme mâle 21. Dans la troisième étape, on poursuit l'engagement par translation longitudinale, les parois de la gorge 32B servant de guidage jusqu'à ce que l'orifice circulaire 32A embrasse la forme mâle 21 mise en butée ; la charnière est alors en position fermée. La forme évasée à l'em bouchure de la gorge longitudinale 32B facilite l'insertion de la portion 30 puis le gui dage jusque dans l'orifice 32A. La dernière étape consiste à ouvrir si besoin la char nière : la portion de prolongement 31 est pivotée comme illustré par la flèche F de la figure 10, ce qui fait tourner la portion pivotante 30 autour de la forme femelle 21, et positionne la broche 33 à l'intérieur de la cavité intérieure 20. FIG. 10 illustrates four schematic steps for assembling the movable part 3 to the fixed part 2. First of all in the first step, the movable part 3 is gripped by its extension portion 31, and the pivoting portion 30 is positioned facing the window 22 of the rear face 2B of the fixed part 2; the pivoting portion 30 is approached towards the first window 22 such that the axis of the longitudinal groove 32 is at an angle with respect to the plane of said window 22. Then in the second step, the pivoting portion 30 is introduced into the cavity interior 20, such that the pin 33 (the longest) is on one side in abutment against the support line 42, and on the other side (wall of the longitudinal groove 32B) in abutment against the female form 21 for start the engagement of the female form 32 around the male form 21. In the third step, the engagement is continued by longitudinal translation, the walls of the groove 32B serving as a guide until the circular orifice 32A embraces the male form 21 brought into abutment; the hinge is then in the closed position. The flared shape at the mouth of the longitudinal groove 32B facilitates the insertion of the portion 30 then the guiding into the orifice 32A. The last step consists of opening the hinge if necessary: the extension portion 31 is pivoted as illustrated by the arrow F of the Figure 10, which rotates the pivoting portion 30 around the female form 21, and positions the pin 33 inside the interior cavity 20.
[0075] La figure 11 illustre trois étapes schématiques pour désaccoupler la partie mo bile 3. Selon la première étape, la charnière 1 doit être en position fermée afin de rendre accessible l'extrémité libre 33 de la partie mobile 3 ; une pression est exercée sur ladite extrémité libre/la broche 33 perpendiculairement à l'axe longitudinal de la dite broche 33 (flèche F') et en direction de la première fenêtre 22. Dans la deuxième étape, en appuyant sur la broche 33 d'une main de l'utilisateur, tout en tirant sur la portion de prolongement 31 de l'autre main, cela engendre un léger écartement de la broche 33 et par conséquent un léger écartement de l'orifice circulaire 32A, ce qui per met de désaccoupler l'orifice circulaire 32A de la forme mâle 21. Une fois que le désen gagement de l'orifice 32 hors de la forme mâle 21 est effectué, les méplats 24A et 24B sont en contact avec les parois internes de la gorge longitudinale 32, et il suffit de tirer sur la portion de prolongement 31 vers l'opposé de la partie fixe 3 de la charnière, pour sortir la gorge longitudinale 32B hors de la partie mâle 21 et sortir la portion de pivotement 30 hors de la partie fixe 2. La charnière 1 est alors totalement désaccou- plée comme illustrée sur la dernière étape. Figure 11 illustrates three schematic steps for uncoupling the movable part 3. According to the first step, the hinge 1 must be in the closed position in order to make accessible the free end 33 of the movable part 3; pressure is exerted on said free end / pin 33 perpendicular to the longitudinal axis of said pin 33 (arrow F ') and in the direction of the first window 22. In the second step, pressing the pin 33 of one hand of the user, while pulling on the extension portion 31 with the other hand, this causes a slight separation of the spindle 33 and consequently a slight separation of the circular orifice 32A, which makes it possible to disconnect the circular orifice 32A of the male form 21. Once the disengagement of the orifice 32 from the male form 21 is effected, the flats 24A and 24B are in contact with the internal walls of the longitudinal groove 32, and it suffices to pull on the extension portion 31 towards the opposite side of the fixed part 3 of the hinge, to release the longitudinal groove 32B out of the male part 21 and to release the pivoting portion 30 out of the fixed part 2. The hinge 1 is then completely uncoupled as illustrated ustrée on the last step.

Claims

Revendications Claims
[Revendication 1] Charnière (1) en matière plastique comportant une première partie (2) et une seconde partie (3), l'une des parties étant articulée par rapport à l'autre partie, la première partie (2) comportant une forme mâle (21) enfermée dans un logement (20) pourvu d'au moins une fenêtre (22), dite première fenêtre, pour accéder jusqu'à la forme mâle (21), tandis que la seconde partie (3) est apte à traverser la fenêtre (22) et comporte une forme femelle (32) pour coopérer avec la forme mâle (21) par engagement autour de celle-ci et par pivotement, caractérisée en ce que la forme mâle (21) est cylindrique et comporte deux méplats opposés (24A, 24B) et deux surfaces semi-circulaires opposées (25A, 25B). [Claim 1] Hinge (1) of plastic material comprising a first part (2) and a second part (3), one of the parts being articulated with respect to the other part, the first part (2) having a shape male (21) enclosed in a housing (20) provided with at least one window (22), called the first window, to access up to the male form (21), while the second part (3) is able to pass through the window (22) and comprises a female form (32) to cooperate with the male form (21) by engagement around the latter and by pivoting, characterized in that the male form (21) is cylindrical and comprises two opposite flats (24A, 24B) and two opposing semi-circular surfaces (25A, 25B).
[Revendication 2] Charnière selon la revendication 1, caractérisée en ce que les deux parties (2, 3) sont assemblées l'une à l'autre après fabrication, de préférence sont amovibles après avoir été assemblées. [Claim 2] Hinge according to claim 1, characterized in that the two parts (2, 3) are assembled to each other after manufacture, preferably are removable after having been assembled.
[Revendication 3] Charnière selon la revendication 1 ou la revendication 2, caractérisée en ce que la seconde partie (3) présente en vue de dessus une forme générale de clé à fourche, comprenant deux broches (33, 34) espacées qui délimitent la forme femelle (32), de préférence l'une des broches (33) étant plus longue que l'autre. [Claim 3] Hinge according to claim 1 or claim 2, characterized in that the second part (3) has in top view the general shape of an open-ended wrench, comprising two spaced pins (33, 34) which define the shape female (32), preferably one of the pins (33) being longer than the other.
[Revendication 4] Charnière selon l'une quelconque des revendications précédentes, caractérisée en ce que la forme femelle (32) comporte un orifice circulaire (32A) qui est ouvert en partie en périphérie, et une gorge longitudinale (32B) s'étendant depuis l'orifice circulaire (32A) et débouchant librement, de préférence la gorge longitudinale étant à parois divergentes depuis l'orifice circulaire. [Claim 4] A hinge according to any one of the preceding claims, characterized in that the female form (32) has a circular orifice (32A) which is partly open at the periphery, and a longitudinal groove (32B) extending from it. the circular orifice (32A) and opening freely, preferably the longitudinal groove having divergent walls from the circular orifice.
[Revendication 5] Charnière selon la revendication 4, caractérisée en ce que lorsque la forme mâle (21) est dans l'orifice circulaire (32A) de la forme femelle (32), au moins l'un des méplats de la forme mâle (21) n'est plus aligné avec l'une des parois de la gorge longitudinale (32B). [Claim 5] Hinge according to claim 4, characterized in that when the male form (21) is in the circular orifice (32A) of the female form (32), at least one of the flats of the male form ( 21) is no longer aligned with one of the walls of the longitudinal groove (32B).
[Revendication 6] Charnière selon l'une quelconque des revendications précédentes, caractérisée en ce que la seconde partie (3) comporte un corps qui présente une extrémité distale libre (33) formant une terminaison en saillie par rapport au reste du corps de ladite seconde partie, de préférence ladite extrémité distale (33) étant rendue accessible en position montée de la seconde partie (3) sur la première partie (2) afin de permettre le désaccouplement des deux parties de charnière. [Claim 6] Hinge according to any one of the preceding claims, characterized in that the second part (3) comprises a body which has a free distal end (33) forming a projecting termination with respect to the rest of the body of said second part, preferably said distal end (33) being made accessible in the mounted position of the second part (3) on the first part (2) in order to allow the two hinge parts to be disconnected.
[Revendication 7] Charnière selon la revendication précédente, caractérisée en ce que la première partie (2) comporte une seconde fenêtre (23) à l'opposé de la première fenêtre (22) par rapport au logement (20), l'extrémité distale (33) dépassant à l'extérieur de la seconde fenêtre (23) en position fermée de la charnière et ne dépassant pas en position totalement ouverte de la charnière. [Claim 7] Hinge according to the preceding claim, characterized in that the first part (2) comprises a second window (23) opposite the first window (22) relative to the housing (20), the distal end (33) protruding outside the second window (23) in the closed position of the hinge and not protruding in the fully open position of the hinge.
[Revendication 8] Charnière selon l'une quelconque des revendications précédentes, caractérisée en ce que la première partie (2) et la seconde partie (3) comportent des surfaces complémentaires de sorte qu'en position totalement ouverte de la charnière, la charnière forme un ensemble monobloc au profil externe continu. [Claim 8] Hinge according to any one of the preceding claims, characterized in that the first part (2) and the second part (3) comprise complementary surfaces so that in the fully open position of the hinge, the hinge forms a one-piece assembly with a continuous external profile.
[Revendication 9] Charnière selon l'une quelconque des revendications précédentes, caractérisée en ce que les deux parties (2, 3) sont fabriquées par impression 3D. [Claim 9] Hinge according to any one of the preceding claims, characterized in that the two parts (2, 3) are produced by 3D printing.
[Revendication 10] Charnière selon l'une quelconque des revendications précédentes, caractérisée en ce que la matière plastique est du bioplastique, notamment en polyamide 11 chargé en farine végétale. [Claim 10] Hinge according to any one of the preceding claims, characterized in that the plastic material is bioplastic, in particular polyamide 11 loaded with vegetable flour.
[Revendication 11] Charnière selon l'une quelconque des revendications précédentes, caractérisée en ce que l'une des parties (3) avec la forme femelle constitue une branche d'une paire de lunettes et l'autre partie (2) avec la forme mâle constitue un tenon de ladite paire de lunettes auquel est associée la branche. [Claim 11] Hinge according to any one of the preceding claims, characterized in that one of the parts (3) with the female form constitutes a branch of a pair of glasses and the other part (2) with the form male constitutes a tenon of said pair of glasses with which the branch is associated.
PCT/EP2021/050522 2020-01-14 2021-01-13 Plastic hinge WO2021144283A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21702858.8A EP4091018A1 (en) 2020-01-14 2021-01-13 Plastic hinge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2000296A FR3106219B1 (en) 2020-01-14 2020-01-14 Plastic hinge
FRFR2000296 2020-01-14

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WO2021144283A1 true WO2021144283A1 (en) 2021-07-22

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EP (1) EP4091018A1 (en)
FR (1) FR3106219B1 (en)
WO (1) WO2021144283A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4273618A1 (en) * 2022-05-03 2023-11-08 REDTENBACHER Präzisionsteile Ges.m.b.H. Spring hinge for spectacles

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1126049A (en) * 1955-05-11 1956-11-13 Eyeglass frame improvements
WO1994029763A1 (en) * 1993-06-07 1994-12-22 Bausch & Lomb Incorporated Hinge system for eyewear
US20030076475A1 (en) * 2001-10-18 2003-04-24 Rudolf Meiler Arrangement comprising an endpiece, a temple headpiece and a hinge for spectacles
US20130128220A1 (en) * 2011-11-18 2013-05-23 Yung-An Chen Eyeglasses
US20180217399A1 (en) * 2017-02-02 2018-08-02 Francesco Ferretti Eyeglass frames with detachable temple pieces

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1126049A (en) * 1955-05-11 1956-11-13 Eyeglass frame improvements
WO1994029763A1 (en) * 1993-06-07 1994-12-22 Bausch & Lomb Incorporated Hinge system for eyewear
US20030076475A1 (en) * 2001-10-18 2003-04-24 Rudolf Meiler Arrangement comprising an endpiece, a temple headpiece and a hinge for spectacles
US20130128220A1 (en) * 2011-11-18 2013-05-23 Yung-An Chen Eyeglasses
US20180217399A1 (en) * 2017-02-02 2018-08-02 Francesco Ferretti Eyeglass frames with detachable temple pieces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4273618A1 (en) * 2022-05-03 2023-11-08 REDTENBACHER Präzisionsteile Ges.m.b.H. Spring hinge for spectacles

Also Published As

Publication number Publication date
EP4091018A1 (en) 2022-11-23
FR3106219B1 (en) 2023-11-03
FR3106219A1 (en) 2021-07-16

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