FR2604154A1 - HINGED CAP DEVICE FOR CLOSING A CONTAINER LIKE A BOTTLE, BOTTLE OR THE LIKE - Google Patents

Abstract

HINGED CAP DEVICE FOR CLOSING A CONTAINER, LIKE A BOTTLE, VIAL OR THE LIKE, INCLUDING A FIRST PART EQUIPPED WITH AN OUTLET OPENING AND SUITABLE TO BE ATTACHED TO THE CONTAINER AND A SECOND PART OR HEADGE EQUIPPED WITH OPENING MEANS AND MEANS CONNECTED TO THE SAID FIRST PART BY AN ARTICULATION OF THE HINGE-FILM TYPE WITH ELASTIC EFFECT. HINGE-FILM MILK, SINGLE, INCLUDES END ZONES - CONSIDERED FOLLOWING THE LONGITUDINAL DIRECTION FORMING THE HINGE AXIS - WHICH ARE COMPLIANT FOLLOWING PORTIONS OF SPHERICAL SURFACES. APPLICATIONS: STOPPING CONTAINERS.

Description

The subject of the invention is a hinged plug device for

  closing a container like a bottle,

bottle or the like.

  Many closure devices for containers such as bottles, flasks and tubes are already known.

  or the like constituted by a hinged plug, that is,

  a molded device of a plastics part having a first part provided with an outlet opening and intended to be fixed to the container and a second part or cap connected to the first part by a hinge-film of said plastics material, for example polypropylene whose excellent bending strength allows the realization of extremely robust hinges likely to undergo a very high

  large number of bends without any noticeable alteration.

  When one wishes, complementarily, to order

  opening and / or closing of the device by an action-

  simply with one hand, it is expected that the opening and / or closing

  "spring" effect, that is to say, so that it can be

  follow itself after it has been initiated by the user.

  and after a "break-in" has been reached

  pivoting the cap around said hinge.

  Hinge plug devices for closing

  The containers of this type are disclosed, for example, in FR-A-2 380 195, where the constituent means of the hinge itself are relatively bulky and protrude substantially from the outer surface of the device, which rules out their use. for some applications, for

  example for closing containers of the type used in

  for packaging pharmaceuticals, cosmetics, or the like. In addition, the embodiments described comprise locking means of the cap relative to the portion fixed to the container, so that if they are appropriate to oppose the unwanted opening by children, the container they equip, they are of a structure too complex to be associated with containers for which the condition which has just been recalled is less imperative. It is generally an object of the invention to provide a hinged cap device for closing containers such as bottles; vials, tubes or the like, which overcomes the disadvantages mentioned above

known devices.

  It is also an object of the invention to provide such a device whose manufacture is sufficiently simple,

  by injection molding techniques, so as not to

  significantly reduce the cost price and thus its

  industrial and / or commercial exploitation.

  A hinged cap device according to the invention

  comprising a first part provided with an outlet opening and adapted to be fixed to the container and a second part

  part or cap fitted with means for closing off said opening

  ture and connected to said first part by a hinge-

  film with elastic effect is characterized in that the single hinge-film comprises end zones, - considered in the axial direction of the hinge -,

  are formed according to portions of spherical surfaces.

  A hinge-film is here understood to mean a hinge whose two mutually movable parts are connected to one another by a thin plastic film or film, which protects the pivot axis, as in the case of a hinge. elsewhere customary in the art of plugs, binders or one-piece molded folding boxes which apply

such hinges.

  According to another characteristic of the invention, the median zone between said portions of spherical surfaces has a substantially rectangular planar outline,

  long sides running parallel to the axis of the hinge.

  In a preferred embodiment the surface portions

  these spheres are bounded by a substantially parallel plane

  lble at the free edge of the cap, in the molding condition

  of the device, while said plane makes an angle of

  90 in relation to its molding condition, in the

  condition of closure of the device.

  The thickness of the constituent film of the hinge is

  the same, in the median zone and in the end zones.

  As a variant, the film is of variable thickness, advantageously thicker in the median zone than in the

  end zones partly spherical.

  In a particularly preferred embodiment the first part attached to the container comprises an end lip and the middle area of the hinge is connected to a

  faces to the side wall of the cap and to the side wall

  of said lip by rounding while the connection of said zone to said walls takes place by chamfers on

his other face.

  The invention will be well understood from the description

  which follows, given by way of example and with reference to the appended drawing in which: - Figure 1 is a part sectional view, part

  in elevation from above, a cap device according to the in-

  vention in its condition of total opening; - Figure 2 is a sectional view along the line II-II of Figure 1; - Figure 3 is a section along the line III-III of Figure 1; - Figure 4 is a partial section along the line IV-IV of Figure 1; - Figure 5 is a partial top view, on a larger scale, of the device according to the invention; FIG. 6 is a partial view, in section, and

on a larger scale.

  The closure device according to the invention, for closing a container such as a bottle, a flask, or a tube, T, FIG. 2, essentially comprises a first

  part 11 to be fixed on the container T by screw

  wise of a skirt 12 on the tip e tube and a second

  part or cap 13 connected to the first part by a

  14 of the "hinge-film" type, that is to say made by a thin zone of the plastic material constituting the device, for example polypropylene whose excellent resistance to bending allows the realization of

this type of hinge.

  The skirt 12, which has on its outer surface two diametrically opposed ribs 12a and 12b forming abutments, depends on a frustoconical cap 15 whose base of smaller diameter is pierced by an opening 16 for the passage of the product contained in the container T. while at the base of larger diameter is connected a wall 17 with a very small conicity 17 whose free end portion is connected by a shoulder 18 to a cylindrical lip with circular cross-section 19. The cap 13 is shaped as follows a frustoconical cup with very small conicity also and whose profile of the inner face of the side wall 20 is conjugated with that of the wall 17, while the outer diameter of the edge

  free 20a corresponds to that of the lip 19. A bottom 21,

  very curved towards the inside of the bowl, carries in its

  center a nipple 22 of shape and conjugate dimensions of the-

  16 that it is intended to close in the condition of

closure of the device.

  The hinge 14, illustrated more precisely in FIGS. 3 to 6, is formed at the periphery of the lip 19 and in the vicinity of the end of the wall 20 distant from the bottom 21. According to the invention, the hinge-film 14 comprises a central zone 30, FIGS. 1, 3 and 5 substantially flat and with a somewhat rectangular contour with long sides 32, 33. directed

  tangentially to cylindrical or quasi-cylindrical surfaces

  constitutive of the lip 19 and the wall 20 and small sides parallel to the overall plane of symmetry of the device,

  as shown by line II-II of Figure 1.

  At this median zone 30 are connected to the longitudinal ends of the rectangle (the direction of long sides defines the axis of the hinge) of the zones 35 and 36 shaped according to portions of spherical surfaces limited by a plane parallel to that of the free edge 20a of the cap 13, in the molding condition of the device, and whose radius is slightly greater than the width of the central zone 30

  in the plane of symmetry II-II of the device.

  In one embodiment the zones 35, 36 have

  the same thickness as that of zone 30.

  In a variant, the zones 35 and 36 are smaller

thickness as the area 30.

  The latter, as clearly visible in FIGS. 2, 4 and 6, is connected to the external face of the wall 20 by a

  rounded 40, to the outer face of the lip 19 by the same armature

  round 41 and chamfers 43 and 44 at the free edge 20a of the cap 13 on the one hand and on the face 45 of the shoulder 18

  which is substantially coplanar with said free edge in the con-

  opening edition at 180 of the cap device, which is

  that shown in Figures 1 and 2, on the other hand.

  According to the invention, the molding of the device by polypropylene injection takes place from the part 10, so that a high resistance is obtained for the hinge, both in its central zone 30 and in its end zones in part spherical, the latter contributing to the elimination of any notch phenomenon detrimental to the strength of the device which is further increased by the orientation of the

  constituent molecules of the molded material.

  When, from the condition shown in Figures 1 and 2, the cap 13 is pivoted about the hinge 14 by actuating in the direction of the arrow f until the container T is closed by cooperation of the nipple 22 and the opening 16, the central zone 30 is bent at 180 and this bending causes the deformation, - with setting

  under constraint by partial compression and so

  directionally -, partially spherical zones 35 and 36. In the closing condition, in which the cap 13 is held on the part 10 by cooperation of conjugate shapes, the plane limiting the free edges of the spherical portions 35 and 36 forms a angle of substantially 90 with

  the initial molding plan, so that the means-of-

  then form a closed structure which contributes to the

good overall seal.

  When, in order to access the contents of the container T, the cap 13 is moved away from the part 10 integral with the container, the compressive stress of the partially spherical zones 35 and 36 of the hinge 14 is released and their release causes, by elasticity, the desired spring effect for

the opening of the device.

  It can be made with a thin-film hinge, of the order of 3/10 mm, while obtaining the required ease of actuation by the presence of partially spherical zones whose role is somewhat similar to

that of patella.

Claims (7)

  1. Hinge plug device for closure   container such as a bottle, flask or the like comprises   a first portion provided with an outlet opening and adapted to be fixed to the container and a second portion or cap provided with means for closing said opening and connected to said first part by a hinge-type hinge elastic effect , characterized in that said single hinge-film comprises end zones, considered in the longitudinal direction forming the axis of the hinge -, which are shaped in portions spherical surfaces (35, 36).   2. Device according to claim 1, characterized   in that the median zone (30) between said por-   spherical surfaces (35, 36) has a plane plane   rectangular, with long sides (32, 33) directed parallel   parallel to the axis of the hinge.   3. Device according to claim 1 or claim   2, characterized in that the plane limiting the portions of spherical surfaces (35, 36) is substantially parallel to the free edge of the cap (13) in the molding condition of the device. 4. Device according to claim 3, characterized in that said plane makes an angle of substantially 90 by   to its condition of molding in the condition of closing the device.   5. Device according to any one of the claims   characterized in that the thickness of the constituent film of the hinge is the same in the central zone   (30) and in the end zones (35, 36).   6. Device according to any one of the claims   1 to 4, characterized in that the constituent film of the hinge is of variable thickness, advantageously thicker in the central zone (30) than in the end portions. spherical (35, 36).   7. Device according to any one of the claims   characterized in that the central region (30) of the hinge is connected on one of its faces to the side wall of the cap (13) and to the side wall of an end lip (19) of the first part (10) by rounding, while the connection of said zone (30) to said walls has   place by chamfers (43, 44) on its other side.