FR2796362A1 - BOTTLE COMPRISING AN ORIENTATION STOPPER AND A CAP COMPRISING AN INTERNAL SEALING CAPSULE AND AN OUTER COVER - Google Patents

Abstract

The flask (1) has a part that forms the reservoir (9) with a threaded neck (3) attached to the body (2) formed by blow moulding. The stopper (4) has an internal sealing capsule (5) that threads onto the neck, and an external cap (6) fixed onto the internal sealing capsule. The reservoir has a positional locator (15) that engages with the stopper to lock it in a predetermined angular position at the end of the thread. The positional locator is formed by blow moulding with the body.

Description

The present invention relates to a bottle of the type comprising on the one hand a

  part forming a reservoir comprising a threaded neck connecting to a body produced by blowing, and on the other hand a cap comprising an inner sealing capsule with

  screw on the neck and an outer cover fixed on this inner capsule.

  The invention relates more particularly to a bottle, the reservoir portion of which is produced in two stages, namely a first stage in which the threaded neck is made in one piece with a parison, then a second stage in which there is carried out the body of the tank portion by blowing the parison. The blowing takes place in a different mold from that used to make the parison. When the body of the reservoir part and the stopper have non-symmetrical external shapes of revolution, for example polygonal cross sections, it is desirable for aesthetic reasons that in the closed position of the bottle the stopper is in an angular position predetermined with respect to said body. It has been proposed in European patent application EP-A-007 274 to produce the outer cover with a stop surface capable of cooperating with an orientation stop formed on the neck to immobilize the plug in a predetermined angular position relative to to the body of the bottle after screwing on the cap. A stop piece is

  inserted into the outer cover to form this stop surface.

  We also know from European patent application EP-A-179 706 a

  bottle having a threaded neck provided with an orientation stop and an anti-boss

  unscrewability carried out on the collar.

  The applicant company has found that in known bottles, despite the presence of the orientation stop on the neck of the reservoir portion of the bottle, there is sometimes a slight angular offset, of the order of a few degrees relative to the

position sought.

  This offset, which is barely noticeable when the outer cover is of modest size, becomes troublesome when the plug has an elongated shape transversely. -2- The present invention aims to propose a new bottle making it possible to obtain both a tight closure and a satisfactory positioning of the stopper in position

  closing, even when the latter has a transversely elongated shape.

  The bottle according to the invention is of the type comprising a portion forming a reservoir comprising a threaded neck connecting to a body produced by blowing and a stopper comprising an inner sealing capsule to be screwed onto the neck and an outer cap fixed to the inner capsule. , the tank-forming part comprising at least one orientation stop and the plug at least one stop surface capable of cooperating with this orientation stop in order to immobilize in rotation the plug in a predetermined angular position relative to the body of the part forming a reservoir at the end of the screwing of the cap, and is characterized in that the orientation stop is produced by

  blowing with the body of the tank part.

  Thanks to the invention, it is possible to reliably obtain a precise positioning of the stopper relative to the body of the tank-forming part and

  to remedy the above-mentioned drawback.

  The invention is based on the observation that in known bottles, the body of which is produced by blowing, the orientation of the neck relative to the mold used for blowing the parison is liable to vary slightly during transport of the

parison from one mold to another.

  It is this imprecision concerning the angular positioning of the neck relative to the body of the tank-forming part which is responsible for the slight offset.

  angular observed by the plaintiff.

  The embodiment in the invention of the orientation stop during the blowing of the body of the reservoir part guarantees precise angular positioning of the orientation stop relative to said body and therefore precise positioning of the cap.

in the closed position.

  In a preferred embodiment of the invention, the stop surface is made in the thickness of a tubular skirt molded in one piece with the outer cover, this tubular skirt preferably being demolded down, this is i.e. towards the end intended for

  be directed to the body of the reservoir portion.

  -3- The manufacture of the stopper is thereby simplified since, unlike that described in application EP-A-007 274, it is not necessary to bring a part

in the outer cover.

  The aforementioned tubular skirt can be an outer skirt of the outer cover or alternatively an inner skirt, which can be used to fix the outer cover to the

  inner sealing capsule.

  Advantageously, the outer cover includes an anti-boss

  unscrewability, this boss being able to elastically cross the orientation stop before the stop surface comes to bear on the latter, at the end of the screwing of the

plug.

  Advantageously, the plug has at its lower end a ring attached to the outer cover, intended to hide the lower end of the skirt

  tubular on which the stop surface is made.

  This ring advantageously includes inscriptions on its external surface, inscriptions which it would be, if necessary, difficult to make appear directly on the external cover taking into account its geometry. It can also have a color

  different from that of the outer cover.

  Preferably, the orientation stop is located in a joint plane of the body of

the tank portion.

  This body can be made of plastic or glass.

  The bottle may have two diametrically opposite orientation stops

compared to the col.

  The outer cover may have two stop surfaces and two anti-unscrewability bosses. Advantageously, the inner capsule is made of a plastic material

  semi-rigid, such as polypropylene copolymer.

  Advantageously, the outer cover is made of a plastic material having a tensile elasticity module greater than or equal to 100 kg.f / mm2, of

  preferably a thermoplastic or thermosetting material.

  The invention also relates to a process for manufacturing a bottle, comprising the steps consisting in: - making a neck with a parison, 4- - making the body of the forming part by blowing the parison

  tank with at least one orientation stop near the neck.

  After completion of the reservoir portion, the latter can be filled with a liquid such as a perfume, then closed by means of a stopper comprising an inner sealing capsule and an outer cover provided with at least one surface.

  clean stop to cooperate with the orientation stop.

  The outer cover is preferably attached to the inner capsule

  sealing after screwing the latter onto the neck.

  The outer cover is advantageously made by molding plastic material by being demolded only from the bottom, the stop surface being made in

the thickness of a tubular skirt.

  Other characteristics and advantages of the present invention will become apparent from the

  reading of the detailed description which follows, of nonlimiting examples of implementation

  work, and on examination of the appended drawing in which: - Figure 1 is an exploded schematic view of a bottle according to a first embodiment of the invention, - Figure 2 is a partial perspective view of l 'lower end of the plug, the ring being removed, - Figure 3 is a side view of the lower end of the plug, the ring being removed, and - Figure 4 is a view similar to Figure 2, illustrating a variant of

realization of the plug.

  The bottle 1 shown in Figure 1 has a reservoir portion 9

and a plug 4.

  The reservoir portion 9 comprises a body 2 surmounted by a threaded neck 3

  of axis X, on which the cap 4 can be screwed.

  The latter is composed of an inner sealing capsule 5, an outer cover 6 fixed on the inner sealing capsule 5, and a metal ring 12

  attached to the lower end of the outer cover 6.

  The tank portion 9 is made of glass or plastic

  rigid or semi-rigid, in two stages.

  -5 - We start by making the collar 3 with a parison then we blow the

  parison to form the body 2, in a manner known per se.

  The body 2 is produced, in the example described, with a substantially rectangular cross section defining two main faces 10 substantially flat and parallel and two shoulders 13 on each side of the neck 3 in the upper part of the body 2. The joint plane 11 of the body 2 extends along a diagonal of the bottle, as shown. The outer cover 6 is produced by molding of plastic material, likewise

  than the inner sealing capsule 5.

  Two orientation stops 15, only one of which is visible in FIG. 1, diametrically opposite with respect to the axis X of the neck 3 and situated in the joint plane 11, are formed on the shoulders 13 of the nearby bottle neck 3, when blowing the

body 2.

  Thus, the positioning of these orientation stops 15 on the body 2 is

constant.

  In a variant not illustrated, a single orientation stop 15 is produced

on the body 2.

  The cover 6 has in the upper part 20 an elongated shape along an axis Y extending perpendicular to the axis X. It is desired that the axis Y is parallel to the main faces 10 of the body 2

when the bottle is closed.

  The outer cover 6 comprises, in the lower part 21 as can be seen in FIG. 2, an outer skirt 22 and an inner skirt 23 cylindrical and coaxial,

  made in one piece by plastic molding with the upper part 20.

  The inner skirt 23 has a substantially circular cross section and is used for fixing the outer cover 6 to the inner sealing capsule 5, which preferably has on its periphery grooves of axis X intended to be joined by

  friction the inner capsule 5 with the outer cover 6.

  The outer skirt 22 present in the example describes a substantially square cross section, the inner skirt 23 joining in four locations 24 of its periphery the inner surface of the four sides of the outer skirt 22 and providing

  with the four interior angles of the exterior skirt 22 of the cavities 25.

  -6 - The lower end of the outer skirt 22 is profiled so as to constitute at least one stop surface 30, preferably two as in the example shown in the figures, intended to each cooperate with an orientation stop 15

  to immobilize the plug in the desired angular position in the closed position.

  The stop surfaces 30 are made in the thickness of the outer skirt 22

  and extend parallel to the X axis, as can be seen in Figure 3.

  An anti-unscrewability boss 31, of lower height than the stop surface, is produced at a certain distance from the stop surface 30, in the thickness of the skirt

  outer 22, to avoid self-unscrewing of the cap.

  More particularly, the anti-unscrewability boss 31 and the stopping surface 30 form a gap 36 between them, of width slightly greater than that of the stop.

orientation 15.

  When the plug 4 is screwed onto the neck 3, the anti-unscrewing boss 31 crosses, by elastic deformation, the orientation stop 15 before the stop surface 30 comes to bear on it, giving the user a feeling of hard point,

  confirming the correct closure of the bottle.

  Opposite movement of the plug itself, due for example to the elastic deformation of the inner sealing capsule 5, is prevented by the

  presence of the anti-unscrewability boss 31.

  The user must therefore exert a relatively large force to cause the anti-unscrewing boss 31 to pass the orientation stop 15 when the plug is unscrewed. The metal ring 12 is attached to the lower end of the outer skirt 22, which has on its outer surface a shoulder 35 provided for this purpose.

effect.

  The ring 12 is intended to hide the irregular profile of the lower end of the outer skirt 22 when the bottle is closed, and advantageously includes

  inscriptions on its outer surface, such as for example a perfume mark.

  The ring 12 also acts like a belt to strengthen the

  mechanical strength of the lower end of the outer cover 6.

  It is fixed to the latter by any known means, for example by tightening.

  77- The production of the stop surfaces 30 and the anti-unscrewing bosses 31 in the thickness of the outer skirt 22 of the outer cover 6 makes it possible to demold the skirt

  exterior 22 from below in FIG. 1.

  The entire outer cover 6 is advantageously removed from the bottom, which makes it possible to have an upper wall 29 without opening or cover, which may prove to be

aesthetically advantageous.

  The stop surface (s), as well as the anti-unscrewability boss (es)

  can be made on an inner skirt of the outer cover.

  By way of example, FIG. 4 shows the lower end 21 ′ of an outer cover 6 ′ which differs from that described above in that the stop surfaces 30 ′ and the anti-bump bosses unscrewability 31 'are produced on the inner skirt 23' and

  not on the outer skirt 22 '.

  The positioning of the orientation stop (s) 15 on the body 2 of the tank-forming part is chosen as a function of the location of the surface (s)

  30 or 30 'stop on the outer cover.

  After filling the body 2, the plug 4 is preferably put in place

as follows.

  We start by screwing the inner sealing cap 5 with a couple

  of predetermined tightening guaranteeing a tight closure.

  Then, the outer cover 6 or 6 ′, provided with the ring 12, is lowered vertically so that the inner skirt 23 or 23 ′ engages with friction on the

inner capsule 5.

  The axis Y can then be parallel to the main faces 10 of the body 2, each stop surface 30 or 30 'coming to be positioned directly in contact with a stop.

orientation 15.

  As a variant, the outer cover 6 or 6 ′ can be lowered with the axis Y forming an angle with the main faces 10 of the body 2, and the plug is then subjected, after fixing the outer cover on the inner capsule, an additional rotation

  intended to bring the stop surfaces 30 or 30 ′ to bear on the orientation stops 15.

  Of course, the invention is not limited to the exemplary embodiments which

have just been described.

  -8- One can in particular modify the geometry of the body of the bottle and that of the outer cover. -9-

Claims (17)

  1. Bottle (1) comprising a reservoir portion (9) comprising a threaded neck (3) connecting to a body (2) produced by blowing, and a stopper (4) comprising an inner sealing capsule (5) to screw on the neck, and an outer cover (6; 6) fixed on the inner capsule (5), the reservoir part (9) comprising at least one orientation stop (15) and the cap (4) a surface d 'stop (30; 30') suitable for cooperating with this orientation stop (15) in order to immobilize in rotation the plug (4) in a predetermined angular position relative to the body of the tank-forming part, at the end of the screwing of the plug, characterized in that the orientation stop (15) is   produced by blowing with the body (2) of the reservoir portion of the bottle.   2. Bottle according to claim 1, characterized in that the stop surface (30; 30 ') is made in the thickness of a tubular skirt made in one piece with the outer cover (6; 6' ), this tubular skirt (22; 23 ') preferably being unmolded from below.   3. Bottle according to claim 2, characterized in that the skirt   tubular is an outer skirt (22) of the outer cover (6).   4. Bottle according to claim 2, characterized in that the tubular skirt is an inner skirt (23) of the outer cover (6 '), used for fixing this   last on the inner sealing capsule (5).   5. Bottle according to any one of the preceding claims, characterized   by the fact that the outer cover (6; 6) includes an anti-unscrewing boss (31; 31 '), this boss being able to plastically cross the orientation stop (15) before the stop surface (30; 30 ') does not come to bear on the latter at the end of the screwing of the plug.   6. Bottle according to any one of the preceding claims, characterized   by the fact that the plug comprises at its lower end a ring (12), of   preferably metallic, attached to the outer cover (6; 6 ').   7. Bottle according to the preceding claim, characterized in that said ring has inscriptions on its outer surface or is in a color   different from that of the outer cover. -10-   8. Bottle according to any one of the preceding claims, characterized   by the fact that the orientation stop (15) is located in a joint plane (11) of the body (2)   of the tank portion (9).   9. Bottle according to any one of the preceding claims, characterized   by the fact that the reservoir portion (9) is made of plastic.   10. Bottle according to any one of claims 1 to 8, characterized by the   the reservoir part (9) is made of glass.   11. Bottle according to any one of the preceding claims, characterized   by the fact that the body of the reservoir part comprises two orientation stops (15) diametrically opposite with respect to the neck and the outer cover (6; 6 ') comprises   two stop surfaces (30; 30 ') and two anti-unscrewability bosses (31; 31').   12. Bottle according to any one of the preceding claims,   characterized by the fact that the inner hood is made of a plastic material   semi-rigid, such as polypropylene copolymer.   13. Bottle according to any one of the preceding claims,   characterized in that the outer cover is made of a plastic material having a tensile elasticity module greater than or equal to 100 kg.f / mm2, of   preferably a thermoplastic or thermosetting material.   14. A method of manufacturing a bottle, comprising the steps of: - making a neck (3) with a parison, - making the body (2) of the forming part by blowing the parison   bottle reservoir, with at least one orientation stop (15) near the neck (3).   15. Method according to the preceding claim, characterized in that after the completion of the reservoir portion (9), the latter is filled with a liquid and then closed by means of a plug (4) comprising an inner capsule of seal (5) and an outer cover (6; 6 ') provided with at least one stop surface (30; 30') suitable for   cooperate with said orientation stop (15).   16. Method according to the preceding claim, characterized in that the outer cover (6; 6 ') is attached to the inner sealing capsule (5) after screwing   of the latter on the neck of the reservoir portion.   17. Method according to any one of the two preceding claims,   characterized in that the outer cover (6; 6 ') is produced by molding of material - he -   plastic and unmolded from below, the stop surface (30; 30 ') being made in the thickness   a tubular skirt (22; 23 ') of the outer cover (6; 6').