EP0925739A1 - Case with pivotable lid - Google Patents

Case with pivotable lid Download PDF

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Publication number
EP0925739A1
EP0925739A1 EP98402993A EP98402993A EP0925739A1 EP 0925739 A1 EP0925739 A1 EP 0925739A1 EP 98402993 A EP98402993 A EP 98402993A EP 98402993 A EP98402993 A EP 98402993A EP 0925739 A1 EP0925739 A1 EP 0925739A1
Authority
EP
European Patent Office
Prior art keywords
cover
housing
pivots
frame
housing 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Withdrawn
Application number
EP98402993A
Other languages
German (de)
French (fr)
Inventor
Gérard Joulia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOreal SA
Original Assignee
LOreal SA
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 LOreal SA filed Critical LOreal SA
Publication of EP0925739A1 publication Critical patent/EP0925739A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/123—Mechanisms in the shape of hinges or pivots, operated by springs with a torsion bar
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C13/00—Details; Accessories
    • A45C13/34—Stays or supports for holding lids or covers open
    • A45C13/345—Stays or supports for holding lids or covers open with automatic opening or closing means
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/22—Casings characterised by a hinged cover
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/22—Casings characterised by a hinged cover
    • A45D40/221—Features of the hinge
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1284—Mechanisms in the shape of hinges or pivots, operated by springs with a leaf or similar spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2999/00—Subject-matter not otherwise provided for in this subclass

Definitions

  • the present invention relates to a housing comprising a body housing and a pivoting cover, and more particularly but not exclusively a case intended to contain a makeup product.
  • the means used to assist the opening movement of the cover in these known cases do not offer complete satisfaction, especially in terms of production cost and reliability.
  • the invention therefore relates to a new housing comprising a housing body and a pivoting cover, which is characterized by the fact that it comprises at least one elastically deformable member, attached on the one hand to one of the body of the housing or of the cover and rotatably mounted on the other hand in a housing on the other side of the body housing or cover, this housing being eccentric relative to the geometric axis of rotation of the cover so that said organ undergoes a bending stress varying with the opening angle of the cover and restores, from a predetermined stroke of pivoting of the cover from the closed position to the position of energy accumulated by elastic deformation in creating a couple tending to assist the opening movement of the cover.
  • the housing comprises a single elastically member deformable and a hinge to impose a geometric axis of fixed rotation, around which the pivoting of the lid.
  • the housing has two bodies elastically deformable constituting pivots used for articulation of the cover. In this case, an additional hinge imposing a geometric axis of rotation is not necessary.
  • the first elastically deformable member is rotatably mounted in a first housing
  • the second member resiliently deformable is rotatably mounted in a second housing
  • the axis geometric of rotation of the cover being located substantially at mid-distance axes of the two housings.
  • the organ or organs assisting the movement opening the lid go through a state of maximum stress when the cover is in an intermediate position between its open position and its closed position, so as to restore, from a predetermined cover pivoting stroke from the open position to the closed position, from the energy accumulated by elastic deformation creating a couple tending to assist the closing movement of the cover.
  • the housing has two elastically deformable members serving as pivots, these are preferably made by conformation of the same metal wire.
  • this wire is shaped according to a rectangular frame, one of the short sides of this frame being open to form the two pivots, between which is an extension of the cover.
  • FIG. 1 shows schematically a case 1, comprising a case body 2, a pivoting cover 3 from front to back and a receptacle 4 intended to be placed in the housing body 2, this receptacle 4 having a first housing 5 intended to contain the makeup product, for example a eyeshadow, and a second housing 6 to accommodate an applicator, not shown.
  • the cover 3 is retained on the housing body 2 by a metal frame 7, of substantially rectangular shape, produced by conformation of a circular section wire made of spring steel.
  • This frame 7 The two long sides 14,15 of this frame 7 are joined at the front by a short side 16, the other short side being open at mid-length to form two pivots 9, 10.
  • pivots 9 and 10 are inserted at their free end in housings constituted by respective blind holes 11 and 12 produced on the opposite faces of an extension 13 of the cover 3, projecting beneath its underside 24, substantially mid-width cover 3.
  • the housing body 2 is hollowed out at the rear to accommodate the extension 13 and do not hinder the closing movement of the cover 3.
  • the receptacle 4 has a corresponding cutout 17 at the rear.
  • the long sides 14,15 and the short side 16 of the frame 7 are housed in a groove 18 of the housing body 2, formed between its wall outer 19 and an inner rib 20, parallel thereto.
  • the groove 18 is closed at the top by the receptacle 4 when the latter is fixed to the housing body 2.
  • the short side 16 then extends substantially parallel to the geometric pivot axis of the cover and the long sides 14, 15 substantially perpendicular to this axis.
  • the short side 16 can be fixed in the middle, for example in the bottom of the groove 18 by any appropriate means.
  • the height of the groove 18 is chosen so as to allow a certain angular movement of the long sides 14, 15 of the frame 7, around the axis of the short side 16, as will be explained later.
  • the housings 11 and 12 are offset from the axis instantaneous geometric rotation of the cover 3.
  • the housing 11 is further from the front free edge 23 of the cover than is the housing 12 so that during the introduction of the ends of the frame in these housings 11 and 12, the end which constitutes the pivot 9 is stressed in bending towards the outside of the frame 7, while the other end constituting the pivot 10 is stressed inward bending.
  • the housing 11 is also closer to the inner face 24 of the cover 3 than is the housing 12, so that the setting place of the ends of the frame in the housings 11 and 12 is accompanied a slight deformation of the long sides 14, 15 of the frame 7 around the short side axis 16.
  • the long sides 14 and 15 remain substantially straight and contained in parallel planes, substantially perpendicular to the axis geometric rotation of the cover 3 while the short side 16 is slightly deforms in torsion around its axis.
  • the pivoting movement of the cover 3 also causes the gradual lowering of the long side 14 of the frame 7 and the raising of the long side 15, until the latter are, for a given pivot angle i o , coplanar, as shown in FIG. 6, this angle i o being equal to approximately 45 ° in the embodiment described.
  • the cover 3 can thus keep the position in which it is left by the user, due to the friction between pivots 9 and 10 and housings 11 and 12.
  • pivot 9 When closing the cover from the position opening, pivot 9 is constrained in bending towards the outside while the pivot 10 is constrained inward bending, until reaching the position of maximum stress corresponding to Figure 10.
  • the pivots 9 and 10 thus exert on the cover 3, during its closing movement from the fully open position to the opening angle i o , a restoring torque which must be overcome by the user moving the cover 3 .
  • the pivot 9 can deform inward and restore the accumulated elastic energy, while the pivot 10 can deform outward to also restore the elastic energy accumulated.
  • the pivots 9 and 10 thus exercise during the continuation of the movement closing a motor torque assisting the movement of the cover.
  • the frame 7 ensures the keeping the cover in its closed position, so that it it is not necessary to use a clasp.
  • the ends of the frame 7 serving as pivots 9 and 10 can be constrained when the cover is in its closed position and exert on the latter a couple tending to move it to its open position.
  • the cover 3 must in this case be kept in its closed position by a clasp.
  • the small side 16 of the frame can advantageously be shaped to constitute all or part of this clasp.
  • the cover is hinged directly on the ends of the frame 7 but alternatively, one can provide a hinge imposing the rotation of the cover around a predetermined and fixed geometric axis of rotation, distinct from one to less of the axes of the housings 11 and 12.

Landscapes

  • Closures For Containers (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

A deformable flexible pivot (9,10) is fastened to either the case body (2) or the cover (3). It rotates in a housing in the other body. The housing is eccentric relative to the cover geometrical rotational axis so that it is subjected to a bending stress which varies with the opening angle of the cover. It returns the cover from a pre-specified pivoting travel from its closed to its open position. The stored energy due to elastic deformation creates a couple tending to assist the opening movement of the cover.

Description

La présente invention concerne un boítier comportant un corps de boítier et un couvercle pivotant, et plus particulièrement mais non exclusivement un boítier destiné à contenir un produit de maquillage.The present invention relates to a housing comprising a body housing and a pivoting cover, and more particularly but not exclusively a case intended to contain a makeup product.

On connaít par la demande de brevet français FR-A-2 471 327 un boítier dans lequel le couvercle est relié au corps de boítier par des charnières travaillant en torsion pour rappeler le couvercle vers sa position d'ouverture.We know from the French patent application FR-A-2 471 327 a housing in which the cover is connected to the housing body by hinges working in torsion to recall the cover towards its open position.

On connaít également par la demande de brevet français FR-A-2 691 132 un boítier dans lequel le couvercle est articulé sur le corps du boítier au moyen de deux goupilles élastiquement déformables qui, lors du verrouillage du couvercle en position de fermeture, sont déformées en flexion par basculement du couvercle autour d'un appui formé sur le corps de boítier. Les goupilles provoquent en reprenant leur forme initiale une légère ouverture du couvercle quand ce dernier est déverrouillé.We also know by the French patent application FR-A-2 691 132 a housing in which the cover is hinged on the body of the housing by means of two elastically deformable pins which, when the cover is locked in the closed position, are deformed in bending by tilting the cover around a support formed on the housing body. Pins provoke by resuming their initial shape a slight opening of the lid when the latter is unlocked.

Les moyens mis en oeuvre pour assister le mouvement d'ouverture du couvercle dans ces boítiers connus n'offrent pas entière satisfaction, notamment en termes de coût de réalisation et de fiabilité.The means used to assist the opening movement of the cover in these known cases do not offer complete satisfaction, especially in terms of production cost and reliability.

Il existe un besoin pour disposer d'un boítier à couvercle pivotant dans lequel le mouvement d'ouverture du couvercle soit assisté par la mise en oeuvre de moyens fiables et peu coûteux.There is a need to have a box with a lid swivel in which the lid opening movement is assisted by the implementation of reliable and inexpensive means.

L'invention a ainsi pour objet un nouveau boítier comportant un corps de boítier et un couvercle pivotant, qui se caractérise par le fait qu'il comporte au moins un organe élastiquement déformable, assujetti d'une part à l'un du corps de boítier ou du couvercle et monté à rotation d'autre part dans un logement de l'autre du corps de boítier ou du couvercle, ce logement étant excentré par rapport à l'axe géométrique de rotation du couvercle de manière à ce que ledit organe subisse une contrainte de flexion variant avec l'angle d'ouverture du couvercle et restitue, à partir d'une course prédéterminée de pivotement du couvercle depuis la position de fermeture vers la position d'ouverture, de l'énergie accumulée par déformation élastique en créant un couple tendant à assister le mouvement d'ouverture du couvercle. The invention therefore relates to a new housing comprising a housing body and a pivoting cover, which is characterized by the fact that it comprises at least one elastically deformable member, attached on the one hand to one of the body of the housing or of the cover and rotatably mounted on the other hand in a housing on the other side of the body housing or cover, this housing being eccentric relative to the geometric axis of rotation of the cover so that said organ undergoes a bending stress varying with the opening angle of the cover and restores, from a predetermined stroke of pivoting of the cover from the closed position to the position of energy accumulated by elastic deformation in creating a couple tending to assist the opening movement of the cover.

Dans une réalisation, le boítier comporte un seul organe élastiquement déformable et une charnière permettant d'imposer un axe géométrique de rotation fixe, autour duquel s'effectue le pivotement du couvercle.In one embodiment, the housing comprises a single elastically member deformable and a hinge to impose a geometric axis of fixed rotation, around which the pivoting of the lid.

Dans une réalisation préférée, le boítier comporte deux organes élastiquement déformables constituant des pivots servant à l'articulation du couvercle. Dans ce cas, une charnière supplémentaire imposant un axe géométrique de rotation n'est pas nécessaire.In a preferred embodiment, the housing has two bodies elastically deformable constituting pivots used for articulation of the cover. In this case, an additional hinge imposing a geometric axis of rotation is not necessary.

De préférence, le premier organe élastiquement déformable est monté à rotation dans un premier logement, le second organe élastiquement déformable est monté à rotation dans un second logement, l'axe géométrique de rotation du couvercle étant situé sensiblement à mi-distance des axes des deux logements.Preferably, the first elastically deformable member is rotatably mounted in a first housing, the second member resiliently deformable is rotatably mounted in a second housing, the axis geometric of rotation of the cover being located substantially at mid-distance axes of the two housings.

De préférence encore, le ou les organes assistant le mouvement d'ouverture du couvercle passent par un état de contrainte maximum lorsque le couvercle est dans une position intermédiaire entre sa position d'ouverture et sa position de fermeture, de manière à restituer, à partir d'une course prédéterminée de pivotement du couvercle depuis la position d'ouverture vers la position de fermeture, de l'énergie accumulée par déformation élastique en créant un couple tendant à assister le mouvement de fermeture du couvercle.More preferably, the organ or organs assisting the movement opening the lid go through a state of maximum stress when the cover is in an intermediate position between its open position and its closed position, so as to restore, from a predetermined cover pivoting stroke from the open position to the closed position, from the energy accumulated by elastic deformation creating a couple tending to assist the closing movement of the cover.

Ainsi on peut bénéficier grâce à l'invention d'un boítier dont le couvercle est automatiquement rappelé, soit dans sa position de fermeture, soit dans sa position d'ouverture.So we can benefit thanks to the invention of a housing which the cover is automatically recalled, either in its closed, either in its open position.

Lorsque le boítier comporte deux organes élastiquement déformables servant de pivots, ces derniers sont réalisés de préférence par conformation d'un même fil métallique.When the housing has two elastically deformable members serving as pivots, these are preferably made by conformation of the same metal wire.

De préférence, ce fil est conformé selon un cadre rectangulaire, l'un des petits côtés de ce cadre étant ouvert pour former les deux pivots, entre lesquels s'articule un prolongement du couvercle.Preferably, this wire is shaped according to a rectangular frame, one of the short sides of this frame being open to form the two pivots, between which is an extension of the cover.

On bénéficie grâce à l'invention d'un moyen simple et peu coûteux pour assister le mouvement d'ouverture du couvercle.Thanks to the invention, a simple and inexpensive means expensive to assist the opening movement of the cover.

En outre, lorsque le couvercle est rappelé vers sa position de fermeture sous l'action du ou des organes élastiquement déformables précités, il n'est pas nécessaire de prévoir un fermoir pour verrouiller le couvercle en position de fermeture, ce qui réduit encore le coût de fabrication du boítier. In addition, when the cover is returned to its position of closure under the action of the elastically deformable member (s) mentioned above, it is not necessary to provide a clasp for locking the cover in the closed position, which further reduces the manufacturing cost of the case.

D'autres caractéristiques et avantages de la présente invention ressortiront à la lecture de la description détaillée qui va suivre, d'un exemple de réalisation non limitatif de l'invention, et à l'examen du dessin annexé sur lequel :

  • la figure 1 est une vue schématique en perspective du boítier avec le couvercle en position ouverte, le réceptacle destiné à contenir le produit de maquillage étant enlevé,
  • la figure 2 est une vue schématique, en coupe transversale, du corps de boítier selon le trait de coupe II-II de la figure 1,
  • la figure 3 est une vue schématique en perspective d'un détail de la figure 1,
  • la figure 4 représente isolément, en vue de côté, le couvercle et le cadre métallique,
  • la figure 5 est une vue de dessous selon la flèche V de la figure 4,
  • la figure 6 est une vue analogue à la figure 4, représentant le couvercle après rotation d'un angle prédéterminé autour des extrémités du cadre,
  • la figure 7 est une vue analogue à la figure 5, représentant le couvercle et le cadre en position d'ouverture,
  • les figures 8 à 12 représentent schématiquement, en vue de côté, la direction des forces appliquées par les pivots sur le couvercle lorsque ce dernier passe de sa position de fermeture à sa position d'ouverture.
Other characteristics and advantages of the present invention will emerge on reading the detailed description which follows, of a non-limiting exemplary embodiment of the invention, and on examining the appended drawing in which:
  • FIG. 1 is a schematic perspective view of the case with the cover in the open position, the receptacle intended to contain the makeup product being removed,
  • FIG. 2 is a schematic view, in cross section, of the housing body along the section line II-II of FIG. 1,
  • FIG. 3 is a schematic perspective view of a detail of FIG. 1,
  • FIG. 4 represents in isolation, in side view, the cover and the metal frame,
  • FIG. 5 is a bottom view according to arrow V in FIG. 4,
  • FIG. 6 is a view similar to FIG. 4, showing the cover after rotation of a predetermined angle around the ends of the frame,
  • FIG. 7 is a view similar to FIG. 5, showing the cover and the frame in the open position,
  • Figures 8 to 12 schematically show, in side view, the direction of the forces applied by the pivots on the cover when the latter passes from its closed position to its open position.

On a représenté sur la figure 1, de façon schématique, un boítier 1, comportant un corps de boítier 2, un couvercle 3 pivotant d'avant en arrière et un réceptacle 4 destiné à être mis en place dans le corps de boítier 2, ce réceptacle 4 présentant un premier logement 5 destiné à contenir le produit de maquillage, par exemple un fard à paupières, et un deuxième logement 6 pour accueillir un applicateur, non représenté.FIG. 1 shows schematically a case 1, comprising a case body 2, a pivoting cover 3 from front to back and a receptacle 4 intended to be placed in the housing body 2, this receptacle 4 having a first housing 5 intended to contain the makeup product, for example a eyeshadow, and a second housing 6 to accommodate an applicator, not shown.

Le couvercle 3 est retenu sur le corps de boítier 2 par un cadre métallique 7, de forme sensiblement rectangulaire, réalisé par conformation d'un fil de section circulaire en acier à ressort.The cover 3 is retained on the housing body 2 by a metal frame 7, of substantially rectangular shape, produced by conformation of a circular section wire made of spring steel.

Les deux grands côtés 14,15 de ce cadre 7 sont réunis à l'avant par un petit côté 16, l'autre petit côté étant ouvert à mi-longueur pour former deux pivots 9, 10. The two long sides 14,15 of this frame 7 are joined at the front by a short side 16, the other short side being open at mid-length to form two pivots 9, 10.

Ces pivots 9 et 10 sont insérés à leur extrémité libre dans des logements constitués par des perçages borgnes respectifs 11 et 12 réalisés sur les faces opposées d'un prolongement 13 du couvercle 3, formant saillie sous sa face inférieure 24, sensiblement à mi-largeur du couvercle 3.These pivots 9 and 10 are inserted at their free end in housings constituted by respective blind holes 11 and 12 produced on the opposite faces of an extension 13 of the cover 3, projecting beneath its underside 24, substantially mid-width cover 3.

Le corps de boítier 2 est évidé à l'arrière pour loger le prolongement 13 et ne pas gêner le mouvement de fermeture du couvercle 3.The housing body 2 is hollowed out at the rear to accommodate the extension 13 and do not hinder the closing movement of the cover 3.

Le réceptacle 4 comporte une découpe correspondante 17 à l'arrière.The receptacle 4 has a corresponding cutout 17 at the rear.

Les grands côtés 14,15 et le petit côté 16 du cadre 7 sont logés dans une gorge 18 du corps de boítier 2, formée entre sa paroi extérieure 19 et une nervure intérieure 20, parallèle à celle-ci.The long sides 14,15 and the short side 16 of the frame 7 are housed in a groove 18 of the housing body 2, formed between its wall outer 19 and an inner rib 20, parallel thereto.

La gorge 18 est fermée supérieurement par le réceptacle 4 lorsque ce dernier est fixé sur le corps de boítier 2.The groove 18 is closed at the top by the receptacle 4 when the latter is fixed to the housing body 2.

Le petit côté 16 s'étend alors sensiblement parallèlement à l'axe géométrique de pivotement du couvercle et les grands côtés 14, 15 sensiblement perpendiculairement à cet axe.The short side 16 then extends substantially parallel to the geometric pivot axis of the cover and the long sides 14, 15 substantially perpendicular to this axis.

Le petit côté 16 peut être fixé en son milieu par exemple dans le fond de la gorge 18 par tout moyen approprié.The short side 16 can be fixed in the middle, for example in the bottom of the groove 18 by any appropriate means.

La hauteur de la gorge 18 est choisie de manière à autoriser un certain débattement angulaire des grands côtés 14,15 du cadre 7, autour de l'axe du petit côté 16, comme cela sera précisé plus loin.The height of the groove 18 is chosen so as to allow a certain angular movement of the long sides 14, 15 of the frame 7, around the axis of the short side 16, as will be explained later.

On comprend que la mise en place du cadre 7 est une opération facilement réalisée et relativement peu coûteuse.We understand that the establishment of the frame 7 is an operation easily performed and relatively inexpensive.

Avant le montage du cadre 7, les extrémités de ce dernier sur lesquelles s'articule le couvercle 3 se situent sensiblement dans le prolongement l'une de l'autre.Before mounting the frame 7, the ends of the latter on which hinge the cover 3 are located substantially in the extension of each other.

Les logements 11 et 12 sont excentrés par rapport à l'axe géométrique instantané de rotation du couvercle 3.The housings 11 and 12 are offset from the axis instantaneous geometric rotation of the cover 3.

Le logement 11 est plus éloigné du bord libre avant 23 du couvercle que ne l'est le logement 12 de sorte que, lors de l'introduction des extrémités du cadre dans ces logements 11 et 12, l'extrémité qui constitue le pivot 9 est sollicitée en flexion vers l'extérieur du cadre 7, tandis que l'autre extrémité constituant le pivot 10 est sollicitée en flexion vers l'intérieur. The housing 11 is further from the front free edge 23 of the cover than is the housing 12 so that during the introduction of the ends of the frame in these housings 11 and 12, the end which constitutes the pivot 9 is stressed in bending towards the outside of the frame 7, while the other end constituting the pivot 10 is stressed inward bending.

Le logement 11 est également plus proche de la face intérieure 24 du couvercle 3 que ne l'est le logement 12, de sorte que la mise en place des extrémités du cadre dans les logements 11 et 12 s'accompagne d'une légère déformation des grands côtés 14, 15 du cadre 7 autour de l'axe du petit côté 16.The housing 11 is also closer to the inner face 24 of the cover 3 than is the housing 12, so that the setting place of the ends of the frame in the housings 11 and 12 is accompanied a slight deformation of the long sides 14, 15 of the frame 7 around the short side axis 16.

Plus précisément, comme représenté sur la figure 4, lorsque le couvercle 3 est en position de fermeture, le grand côté 15 s'écarte de la face intérieure 24 du couvercle 3 à mesure qu'il se rapproche du logement 12.More specifically, as shown in Figure 4, when the cover 3 is in the closed position, the long side 15 moves away from the inner face 24 of the cover 3 as it approaches the housing 12.

On va maintenant décrire, en référence aux figures 5 à 12, la manière dont le cadre 7 agit sur le couvercle 3 pour assister ses mouvements d'ouverture et de fermeture.We will now describe, with reference to FIGS. 5 to 12, the way the frame 7 acts on the cover 3 to assist its opening and closing movements.

D'une manière générale, durant le pivotement du couvercle 3, les grands côtés 14 et 15 restent sensiblement rectilignes et contenus dans des plans parallèles, sensiblement perpendiculaires à l'axe géométrique de rotation du couvercle 3 tandis que le petit côté 16 se déforme légèrement en torsion autour de son axe.In general, during the pivoting of the cover 3, the long sides 14 and 15 remain substantially straight and contained in parallel planes, substantially perpendicular to the axis geometric rotation of the cover 3 while the short side 16 is slightly deforms in torsion around its axis.

Lorsque le couvercle 3 est pivoté d'un angle i croissant depuis sa position de fermeture vers sa position d'ouverture, et tourne autour d'un axe géométrique instantané de rotation X situé quelque part entre les axes des logements 11 et 12, le pivot 9 tournant dans le logement 11 est contraint de se déformer vers l'extérieur du cadre 7, (vers la droite sur la figure 8) tandis que le pivot 10 tournant dans le logement 12 est contraint de se déformer vers l'intérieur (vers la gauche sur la figure 8).When the cover 3 is pivoted by an increasing angle i from its closed position towards its open position, and turns around an instantaneous geometric axis of rotation X located some part between the axes of the housings 11 and 12, the pivot 9 rotating in the housing 11 is forced to deform towards the outside of the frame 7, (to the right in FIG. 8) while the pivot 10 rotating in the housing 12 is forced to deform inward (to the left in Figure 8).

Le mouvement de pivotement du couvercle 3 provoque également l'abaissement progressif du grand côté 14 du cadre 7 et la remontée du grand côté 15, jusqu'à ce que ces derniers soient, pour un angle de pivotement i o donné, coplanaires, comme représenté sur la figure 6, cet angle i o étant égal à 45° environ dans l'exemple de réalisation décrit.The pivoting movement of the cover 3 also causes the gradual lowering of the long side 14 of the frame 7 and the raising of the long side 15, until the latter are, for a given pivot angle i o , coplanar, as shown in FIG. 6, this angle i o being equal to approximately 45 ° in the embodiment described.

Tant que l'angle de pivotement i est inférieur i0, les pivots 9 et 10 exercent des forces de rappel F et F' dans des directions opposées sur les logements 11 et 12 respectivement, créant un couple de rappel tendant à ramener le couvercle 3 vers sa position de fermeture, comme représenté sur la figure 9. As long as the pivot angle i is less than i 0 , the pivots 9 and 10 exert return forces F and F 'in opposite directions on the housings 11 and 12 respectively, creating a return torque tending to bring the cover 3 back towards its closed position, as shown in FIG. 9.

L'intensité des forces F et F' exercées par les pivots 9 et 10 croít progressivement, jusqu'à être maximum lorsque l'angle i est égal à io.The intensity of the forces F and F 'exerted by the pivots 9 and 10 increases progressively, until being maximum when the angle i is equal to i o .

Lorsque les grands côtés 14 et 15 du cadre 7 sont coplanaires, l'énergie élastique accumulée dans les pivots 9 et 10 est maximum, mais ces derniers exercent sur le couvercle 3 des forces F et F' opposées et coplanaires, de sorte que le cadre 7 n'exerce alors aucun couple moteur significatif sur le couvercle 3.When the long sides 14 and 15 of the frame 7 are coplanar, the elastic energy accumulated in pivots 9 and 10 is maximum, but the latter exert on the cover 3 forces F and F ' opposite and coplanar, so that the frame 7 then exerts no significant motor torque on the cover 3.

Le couvercle 3 peut ainsi conserver la position dans laquelle il est laissé par l'utilisateur, du fait de la friction existant entre les pivots 9 et 10 et les logements 11 et 12.The cover 3 can thus keep the position in which it is left by the user, due to the friction between pivots 9 and 10 and housings 11 and 12.

Il est à noter que l'énergie accumulée par torsion dans le petit côté 16, tendant à ramener les grands côtés 14 et 15 dans la configuration initiale représentée sur la figure 8, n'est pas suffisante pour vaincre ces forces de frottement.It should be noted that the energy accumulated by torsion in the short side 16, tending to bring the long sides 14 and 15 into the initial configuration shown in Figure 8, is not sufficient to overcome these friction forces.

Lorsque le couvercle 3 est déplacé d'un angle i supérieur à io, le grand côté 15 passe au-dessus du grand côté 14 et un couple moteur apparaít autour de l'axe instantané de rotation X, tendant à solliciter le couvercle 3 en rotation vers sa position d'ouverture.When the cover 3 is moved by an angle i greater than i o , the long side 15 passes above the long side 14 and a motor torque appears around the instantaneous axis of rotation X, tending to urge the cover 3 in rotation to its open position.

Lors de ce mouvement de rotation du couvercle, le pivot 10 qui jusqu'à présent avait été sollicité en flexion vers l'intérieur du cadre 7 peut se déformer dans l'autre sens en restituant l'énergie élastique accumulée.During this movement of rotation of the cover, the pivot 10 which until now had been inwardly flexed frame 7 can deform in the other direction by restoring the energy accumulated elastic.

De même, le pivot 9 qui jusqu'alors avait été sollicité en flexion vers l'extérieur peut se déformer vers l'intérieur en restituant l'énergie élastique accumulée.Similarly, the pivot 9 which until then had been stressed in outward bending can deform inward restoring the elastic energy accumulated.

Les intensités des forces F et F' exercées par les pivots 9 et 10 sur le couvercle 3 diminuent lorsque l'angle i augmente puisque l'énergie élastique emmagasinée dans les pivots 9 et 10 décroít, comme illustré par les figures 11 et 12.The intensities of the forces F and F 'exerted by the pivots 9 and 10 on the cover 3 decrease when the angle i increases since the elastic energy stored in pivots 9 and 10 decreases, as illustrated by figures 11 and 12.

Lors du mouvement de fermeture du couvercle depuis la position d'ouverture, le pivot 9 est contraint en flexion vers l'extérieur tandis que le pivot 10 est contraint en flexion vers l'intérieur, jusqu'à atteindre la position de contrainte maximale correspondant à la figure 10.When closing the cover from the position opening, pivot 9 is constrained in bending towards the outside while the pivot 10 is constrained inward bending, until reaching the position of maximum stress corresponding to Figure 10.

Les pivots 9 et 10 exercent ainsi sur le couvercle 3, lors de son mouvement de fermeture depuis la position de pleine ouverture jusqu'à l'angle d'ouverture io, un couple de rappel que doit vaincre l'utilisateur déplaçant le couvercle 3.The pivots 9 and 10 thus exert on the cover 3, during its closing movement from the fully open position to the opening angle i o , a restoring torque which must be overcome by the user moving the cover 3 .

Lorsque l'angle i devient inférieur à io, le pivot 9 peut se déformer vers l'intérieur et restituer l'énergie élastique accumulée, tandis que le pivot 10 peut se déformer vers l'extérieur pour restituer également l'énergie élastique accumulée.When the angle i becomes less than i o , the pivot 9 can deform inward and restore the accumulated elastic energy, while the pivot 10 can deform outward to also restore the elastic energy accumulated.

Les pivots 9 et 10 exercent ainsi durant la poursuite du mouvement de fermeture un couple moteur assistant le déplacement du couvercle.The pivots 9 and 10 thus exercise during the continuation of the movement closing a motor torque assisting the movement of the cover.

Dans l'exemple de réalisation décrit, le cadre 7 assure le maintien du couvercle dans sa position de fermeture, de sorte qu'il n'est pas nécessaire d'utiliser un fermoir.In the example of embodiment described, the frame 7 ensures the keeping the cover in its closed position, so that it it is not necessary to use a clasp.

La fabrication du boítier en est ainsi simplifiée.The manufacture of the housing is thus simplified.

Bien entendu, l'invention n'est pas limitée à la forme de réalisation qui vient d'être décrite.Of course, the invention is not limited to the form of realization which has just been described.

Ainsi, dans une variante non représentée, les extrémités du cadre 7 servant de pivots 9 et 10 peuvent être contraintes lorsque le couvercle est dans sa position de fermeture et exercer sur ce dernier un couple tendant à le déplacer vers sa position d'ouverture. Le couvercle 3 doit dans ce cas être maintenu dans sa position de fermeture par un fermoir.Thus, in a variant not shown, the ends of the frame 7 serving as pivots 9 and 10 can be constrained when the cover is in its closed position and exert on the latter a couple tending to move it to its open position. The cover 3 must in this case be kept in its closed position by a clasp.

Dès que ce fermoir est déverrouillé, le boítier s'ouvre sous l'effet des pivots 9 et 10 qui restituent l'énergie élastique emmagasinée et qui exercent sur le couvercle 3 un couple moteur l'entraínant en direction de sa position d'ouverture.As soon as this clasp is unlocked, the case opens under the effect of pivots 9 and 10 which restore the elastic energy stored and which exert on the cover 3 a driving torque driving it towards its open position.

Lorsqu'un fermoir est utilisé, le petit côté 16 du cadre peut avantageusement être conformé pour constituer tout ou partie de ce fermoir.When a clasp is used, the small side 16 of the frame can advantageously be shaped to constitute all or part of this clasp.

On comprend que l'on peut obtenir l'effet de ressort souhaité en choisissant la distance qui sépare les axes des logements 11 et 12 logeant les extrémités du cadre 7.We understand that we can obtain the desired spring effect by choosing the distance between the axes of the housings 11 and 12 housing the ends of the frame 7.

Plus l'écart entre ces axes sera important, plus les extrémités du cadre 7 seront déformées en écartement l'une de l'autre lors du mouvement d'ouverture du couvercle, et plus l'énergie élastique accumulée et restituée sera importante.The larger the distance between these axes, the more the ends of frame 7 will be deformed apart from each other during opening movement of the cover, and the more elastic energy accumulated and returned will be important.

Selon l'emplacement des logements 11 et 12, on peut également déterminer l'angle io à partir duquel les grands côtés 14 et 15 du cadre deviennent coplanaires, c'est-à-dire l'angle io à partir duquel il y a soit ouverture, soit fermeture automatique du couvercle 3.Depending on the location of the housings 11 and 12, it is also possible to determine the angle i o from which the long sides 14 and 15 of the frame become coplanar, that is to say the angle i o from which there has either opening or automatic closing of the cover 3.

Dans l'exemple de réalisation décrit, le couvercle est articulé directement sur les extrémités du cadre 7 mais en variante, on peut prévoir une charnière imposant la rotation du couvercle autour d'un axe géométrique de rotation prédéterminé et fixe, distinct de l'un au moins des axes des logements 11 et 12.In the example of embodiment described, the cover is hinged directly on the ends of the frame 7 but alternatively, one can provide a hinge imposing the rotation of the cover around a predetermined and fixed geometric axis of rotation, distinct from one to less of the axes of the housings 11 and 12.

On peut encore, dans une variante non représentée, assujettir le cadre 7 au couvercle et monter ses extrémités à rotation dans des paliers formés sur le corps de boítier 2.It is also possible, in a variant not shown, to subject frame 7 to the cover and mount its ends for rotation in bearings formed on the housing body 2.

Claims (11)

Boítier comportant un corps de boítier et un couvercle pivotant, caractérisé par le fait qu'il comporte au moins un organe élastiquement déformable (9;10), assujetti d'une part à l'un du corps de boítier (2) ou du couvercle (3) et monté à rotation d'autre part dans un logement (11;12) de l'autre du corps de boítier (2) ou du couvercle (3), ce logement (11;12) étant excentré par rapport à l'axe géométrique de rotation (X) du couvercle de manière à ce que ledit organe (9;10) subisse une contrainte de flexion variant avec l'angle d'ouverture (i) du couvercle et restitue, à partir d'une course prédéterminée (io) de pivotement du couvercle depuis sa position de fermeture vers sa position d'ouverture, de l'énergie accumulée par déformation élastique en créant un couple tendant à assister le mouvement d'ouverture du couvercle.Housing comprising a housing body and a pivoting cover, characterized in that it comprises at least one elastically deformable member (9; 10), secured on the one hand to one of the housing body (2) or of the cover (3) and rotatably mounted on the other hand in a housing (11; 12) on the other side of the housing body (2) or of the cover (3), this housing (11; 12) being eccentric relative to the 'geometric axis of rotation (X) of the cover so that said member (9; 10) undergoes a bending stress varying with the opening angle (i) of the cover and restores, from a predetermined stroke (i o ) pivoting of the cover from its closed position to its open position, of the energy accumulated by elastic deformation by creating a torque tending to assist the opening movement of the cover. Boítier selon la revendication 1, caractérisé par le fait que le ou les organes élastiquement déformables assistant le mouvement d'ouverture du couvercle passent par un état de contrainte maximum lorsque le couvercle est dans une position intermédiaire entre sa position d'ouverture et sa position de fermeture, de manière à restituer à partir d'une course prédéterminée de pivotement du couvercle depuis sa position d'ouverture vers sa position de fermeture de l'énergie accumulée par déformation élastique en créant un couple tendant à assister le mouvement de fermeture du couvercle.Housing according to claim 1, characterized in that that the elastically deformable organ (s) assisting the movement opening the lid go through a state of maximum stress when the cover is in an intermediate position between its open position and its closed position, so as to restore from a predetermined cover pivoting stroke from its open position to its closed energy position accumulated by elastic deformation creating a torque tending to assist the closing movement of the cover. Boítier selon l'une des revendications 1 et 2, caractérisé par le fait qu'il comporte deux organes élastiquement déformables assistant le mouvement d'ouverture du couvercle, constituant des pivots (9;10) servant à l'articulation du couvercle sur le corps de boítier (2), le premier organe élastiquement déformable étant monté à rotation dans un premier logement (11) le second organe élastiquement déformable étant monté à rotation dans un second logement (12), l'axe géométrique de rotation (X) du couvercle étant situé sensiblement à mi-distance des axes des deux logements (11,12).Housing according to one of claims 1 and 2, characterized by the fact that it comprises two elastically deformable members assisting the opening movement of the cover, constituting pivots (9; 10) used to articulate the cover on the body housing (2), the first elastically deformable member being mounted at rotation in a first housing (11) the second member resiliently deformable being rotatably mounted in a second housing (12), the axis geometric of rotation (X) of the cover being located substantially at midway between the axes of the two housings (11,12). Boítier selon la revendication 3, caractérisé par le fait que lesdits pivots (9,10) sont réalisés par conformation d'un même fil métallique (7).Housing according to claim 3, characterized in that that said pivots (9,10) are produced by shaping the same wire metallic (7). Boítier selon l'une quelconque des revendications 3 et 4, caractérisé par le fait que le couvercle est articulé sur un cadre métallique rectangulaire (7), dont l'un des petits côtés est ouvert pour former lesdits pivots (9,10).Housing according to any one of claims 3 and 4, characterized by the fact that the cover is hinged on a frame rectangular metal (7), one of the short sides of which is open to form said pivots (9,10). Boítier selon la revendication précédente, caractérisé par le fait que les deux grands côtés (14,15) et le petit côté (16) du cadre (7) opposé aux pivots (9,10) sont logés dans une gorge (18) du corps de boítier (2), fermée par un réceptacle (4), lequel comporte un logement (5) pour contenir un produit de maquillage ou analogue.Housing according to the preceding claim, characterized by the fact that the two long sides (14,15) and the short side (16) of the frame (7) opposite the pivots (9,10) are housed in a groove (18) of the housing body (2), closed by a receptacle (4), which comprises a housing (5) to contain a makeup product or the like. Boítier selon la revendication 6, caractérisé par le fait que la hauteur de ladite gorge (18) est choisie suffisamment grande pour permettre un débattement angulaire des grands côtés (14,15) du cadre (7) autour de l'axe du petit côté (16) opposé aux pivots (9,10), durant le pivotement du couvercle.Housing according to claim 6, characterized in that that the height of said groove (18) is chosen to be sufficiently large to allow angular movement of the long sides (14,15) of the frame (7) around the axis of the short side (16) opposite the pivots (9,10), during the pivoting of the cover. Boítier selon l'une quelconque des revendications 5 à 7, caractérisé par le fait qu'avant leur montage sur le couvercle les extrémités du cadre (7) servant de pivots (9,10) se situent dans l'alignement l'une de l'autre.Housing according to any one of claims 5 to 7, characterized in that before they are mounted on the cover the ends of the frame (7) serving as pivots (9,10) are located in alignment with each other. Boítier selon l'une quelconque des revendications 3 à 8, caractérisé par le fait que lesdits pivots (9,10) sont montés à rotation dans des logements (11,12) du couvercle situés à des distances différentes du bord libre avant (23) du couvercle (3) et par le fait que le logement (11) qui est le plus éloigné dudit bord avant (23) est situé plus près de la face intérieure (24) du couvercle (3) que l'autre logement (12).Housing according to any one of claims 3 to 8, characterized by the fact that said pivots (9,10) are rotatably mounted in housings (11,12) of the cover located at distances different from the free front edge (23) of the cover (3) and thereby that the housing (11) which is furthest from said front edge (23) is located closer to the inner face (24) of the cover (3) than the other housing (12). Boítier selon l'une quelconque des revendications précédentes, caractérisé par le fait que le couvercle (3) comporte un prolongement (13) formant saillie sous sa face intérieure (24) et par le fait que lesdits pivots (9,10) sont montés à rotation dans des perçages réalisés sur des faces opposées dudit prolongement (13).Housing according to any one of the preceding claims, characterized in that the cover (3) has a extension (13) projecting under its inner face (24) and by the fact that said pivots (9,10) are rotatably mounted in holes made on opposite faces of said extension (13). Boítier selon la revendication 10, caractérisé par le fait que le corps du boítier (2) est évidé à l'arrière pour former un logement pour accueillir ledit prolongement (13) du couvercle.Housing according to claim 10, characterized in that that the body of the housing (2) is hollowed out at the rear to form a housing for accommodating said extension (13) of the cover.
EP98402993A 1997-12-15 1998-11-30 Case with pivotable lid Withdrawn EP0925739A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9715858A FR2772352B1 (en) 1997-12-15 1997-12-15 PIVOTING LID BOX
FR9715858 1997-12-15

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FR (1) FR2772352B1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1611494A (en) * 1925-07-11 1926-12-21 Strauss Allard Meyer Ets Box, small chest, case, and similar article
DE947229C (en) * 1951-08-29 1956-08-09 Asea Ab Hinge for lid of device boxes
FR1152394A (en) * 1956-06-18 1958-02-14 Transformation Metaux Et Carto New hinged articulation device for cases, cases, etc.
GB795864A (en) * 1955-01-01 1958-06-04 Eric Lionel Hutchings Improvements in or relating to hinges and hinged articles
FR2471327A1 (en) 1979-12-13 1981-06-19 Teleplastics Ind Container with sprung hinged lid - has two grooves containing parallel lengths of piano wire twisted by hinge when lid is closed
US4685558A (en) * 1986-04-10 1987-08-11 L'oreal, S.A. Cosmetic compact with pinless internal hinge
FR2691132A1 (en) 1992-05-15 1993-11-19 Lir France Sa Housing with pivoting lid and elastic hinge.
US5475897A (en) * 1992-12-11 1995-12-19 Mitsubishi Steel Mfg. Co., Ltd. Car door hinge

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1611494A (en) * 1925-07-11 1926-12-21 Strauss Allard Meyer Ets Box, small chest, case, and similar article
DE947229C (en) * 1951-08-29 1956-08-09 Asea Ab Hinge for lid of device boxes
GB795864A (en) * 1955-01-01 1958-06-04 Eric Lionel Hutchings Improvements in or relating to hinges and hinged articles
FR1152394A (en) * 1956-06-18 1958-02-14 Transformation Metaux Et Carto New hinged articulation device for cases, cases, etc.
FR2471327A1 (en) 1979-12-13 1981-06-19 Teleplastics Ind Container with sprung hinged lid - has two grooves containing parallel lengths of piano wire twisted by hinge when lid is closed
US4685558A (en) * 1986-04-10 1987-08-11 L'oreal, S.A. Cosmetic compact with pinless internal hinge
FR2691132A1 (en) 1992-05-15 1993-11-19 Lir France Sa Housing with pivoting lid and elastic hinge.
US5475897A (en) * 1992-12-11 1995-12-19 Mitsubishi Steel Mfg. Co., Ltd. Car door hinge

Also Published As

Publication number Publication date
FR2772352A1 (en) 1999-06-18
FR2772352B1 (en) 2000-02-18

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