EP4091018A1 - Charniere en matiere plastique - Google Patents
Charniere en matiere plastiqueInfo
- Publication number
- EP4091018A1 EP4091018A1 EP21702858.8A EP21702858A EP4091018A1 EP 4091018 A1 EP4091018 A1 EP 4091018A1 EP 21702858 A EP21702858 A EP 21702858A EP 4091018 A1 EP4091018 A1 EP 4091018A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hinge
- male
- window
- female
- hinge according
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
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.
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Ophthalmology & Optometry (AREA)
- Optics & Photonics (AREA)
- Hinges (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2000296A FR3106219B1 (fr) | 2020-01-14 | 2020-01-14 | Charnière en matière plastique |
| PCT/EP2021/050522 WO2021144283A1 (fr) | 2020-01-14 | 2021-01-13 | Charniere en matiere plastique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4091018A1 true EP4091018A1 (fr) | 2022-11-23 |
Family
ID=70008878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21702858.8A Withdrawn EP4091018A1 (fr) | 2020-01-14 | 2021-01-13 | Charniere en matiere plastique |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4091018A1 (fr) |
| FR (1) | FR3106219B1 (fr) |
| WO (1) | WO2021144283A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT17866U1 (de) * | 2022-05-03 | 2023-05-15 | Redtenbacher Praez Ges M B H | Federscharnier für eine Brille |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1126049A (fr) * | 1955-05-11 | 1956-11-13 | Perfectionnements aux montures de lunettes | |
| US5418581A (en) * | 1993-06-07 | 1995-05-23 | Bausch & Lomb Incorporated | Hinge system for eyewear |
| DE10151464A1 (de) * | 2001-10-18 | 2003-05-08 | Eye Systems Gmbh Chur | Anordnung mit einer Backe, einem Bügelkopfstück und einem Gelenk für eine Brille |
| US8573772B2 (en) * | 2011-11-18 | 2013-11-05 | Yung-An Chen | Eyeglasses |
| US10061140B2 (en) * | 2017-02-02 | 2018-08-28 | Francesco Ferretti | Eyeglass frames with detachable temple pieces |
-
2020
- 2020-01-14 FR FR2000296A patent/FR3106219B1/fr active Active
-
2021
- 2021-01-13 EP EP21702858.8A patent/EP4091018A1/fr not_active Withdrawn
- 2021-01-13 WO PCT/EP2021/050522 patent/WO2021144283A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3106219B1 (fr) | 2023-11-03 |
| WO2021144283A1 (fr) | 2021-07-22 |
| FR3106219A1 (fr) | 2021-07-16 |
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Effective date: 20260128 |