FR2808775A1 - COLLAPSIBLE BOTTLES, PARTICULARLY BOTTLES - Google Patents

Abstract

The present invention relates to a bottle, in particular a bottle, having a retractable body of substantially cylindrical plastic material, provided at its upper end with a threaded neck or not characterized in that said body has, between the retractable part and the threaded neck or not, a semi-toric zone for the exercise of a traction when the body is in the folded position.

Description

RETRACTABLE BOTTLES, PARTICULARLY BOTTLES.

  The present invention relates to bottles, in

especially baby bottles.

  The object of the invention is to propose retractable bottles, the height of which can be reduced by

outside periods of use.

  In the state of the art, various embodiments of flasks or bottles have been proposed.

retractable.

  French patent FR2467146 discloses in particular a semi-rigid packaging consisting of a corrugated sleeve whose waves, of section of essentially triangular shape, allow stable clipping by tilting at least part of them beyond a equilibrium position so that each of said waves has a stable position in the compressed state or in the deployed state. The sleeve delimits an internal volume can vary in a significant ratio between the states

  extremes where all waves are compressed or deployed.

  We also know the American patent US2,780,678, the American patent US3,143,429, the English patent GB2181062 or the European patent EP300786 concerning compressible containers also having a shape

general bellows.

  A first problem which arises is that of handling the packaging and in particular

  the exercise of traction to stretch the retractable body.

  To overcome this drawback, the invention relates in its most general sense to a bottle, in particular a bottle, having a retractable body of substantially cylindrical plastic material, provided at its upper end with a threaded neck or not characterized in that said body present between the retractable part and

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  the neck a concave semi-toric zone for the exercise of a

  traction when the body is in the folded position.

  Preferably, the semi-toric zone is extended by a disc shoulder in a substantially transverse plane. This shoulder prevents ovalization of the upper part of the cylindrical body and thereby the violability of the pacifier ring in order to ensure a

maximum inviolability.

  This shoulder could consist of a ring injected and welded at this location of the bottle. In another version, we could imagine that the entire neck up to the threaded part will be injected and welded to the

body of the extruded-bellows bottle.

  According to a first variant, the semi-

  O-ring is extended by a retracting disc shoulder

  in a substantially transverse plane.

  According to a second variant, the semi-

  O-ring is extended by an outgoing disc shoulder in

a substantially transverse plane.

  Preferably, the neck presents above the

  threading a cylindrical strip provided with notches.

  According to a particular embodiment, said body has between the retractable part and the bottom a concave semi-toric zone for the exercise of a

  traction when the body is in the folded position.

  The invention will be better understood on reading

  the description of an exemplary embodiment which follows, is

  referring to the appended drawings o: - Figures 1 and 2 show sectional views of an embodiment detail of a bottle, in the respectively unfolded and folded position; - Figures 3 and 4 show detailed views of a pacifier ring for a bottle according to the invention - Figure 5 shows a detailed view of an alternative embodiment of the neck; - Figure 6 shows a top view of the thread - Figures 7 and 8 show two others

variant embodiments.

  The body of the bottle according to the invention, shown in the appended figures, is constituted by a succession of conical sections (1, 2) connected, when the bottle is in the deployed position, in the form of lenses to form a corrugated hollow body. These upper (1) and lower (2) conical sections are connected at their

  vertices (100) and in their troughs (200).

  When the bottle is folded, the lower conical section (1) is folded under the upper conical section (2). The lower conical section (2) rocks relative to the transverse median plane. The lower section (2) is above the transverse plane (300) passing through the hollow (200) of a lenticular segment (400) when the bottle is deployed. It is below the plan

  transverse when the bottle is folded.

  The body includes a plurality of lenticular elements (3 to 11) formed by the addition of two

conical sections (1, 2).

  The connection between two lenticular elements, at the level of the hollow, has a radius of curvature close to 0, in any case less than or equal to 0.2 millimeters. The thickness is an element which can disturb the functioning of the part, the folding and unfolding as well as the maintenance of the turn in the folded position, it

  can even prevent folding if it is large.

  The condition of folding and nesting of a turn at the thickness level, not to mention folding energy but only of feasibility results in a

  radius of the hollow (2) close to 0 to 0.2 millimeters.

  Unfolding takes place by exerting traction between the two ends of the retractable body. For this, the cylindrical body has at its upper end a semi-toric groove (15) facilitating the gripping between

the user's fingers.

  Likewise, the body has, near the bottom, a semi-toric groove (16). These semi-toric grooves (15, 16) have a substantially semi-circular section, the section being taken in a radial plane passing through the median axis of the bottle. They thus differ from the recesses (200) separating two consecutive lenticular elements. The radius of curvature of these semi-toric grooves (15, 16) is of the order of 3 millimeters, preferably greater than

2 millimeters.

  The upper semi-toric groove (15) is extended by a disc shoulder (17) extending in a

  transverse plane. This shoulder is connected to the semi-groove

  toric (15) by a semi-toric annular zone having a curvature opposite to said groove, with a radius of

  curvature of the order of one millimeter.

  This shoulder is surmounted by a threaded neck (18) or not for the screwing of a pacifier ring. This neck has above the thread a notched cylindrical strip (19) having notches (20) to cooperate with complementary protrusions provided on the teat ring. FIG. 2 represents an alternative embodiment where the grip zone is formed by a semi-toric zone (21) which is convex and not concave as in the case illustrated by FIG. 1. The radius of curvature of the section of this semi zone -toric (21) convex is

about 3 millimeters.

  Figures 3 and 4 show the pacifier ring

  respectively seen from below and in section.

  The pacifier ring has a threaded area (25)

  provided with 4 protrusions (26 to 29) having a ramp.

  These protrusions (26 to 29) lock the ring on the aforementioned threaded neck, and prevent the re-use of a single-use bottle. It also ensures the inviolability of the bottle. According to a preferred variant, the threaded zone has not 4 but only 2 protrusions located above the thread, that is to say between the thread and the neck opening. These two protrusions are angularly spaced from 160 to 180. The height, measured in the radial direction, of these

  protrusions is between 4.5 and 7 millimeters.

  The screw ring has a shoulder (30) of section substantially identical to the section of

  the disc shoulder (17) of the cylindrical body of the bottle.

  This realization makes it possible to house the teat in

  inverted position on the bottle before use.

  The assembly formed by the bottle and the ring of the teat resting on the shoulder of the bottle can then be sealed with a protective film which will be removed at the

time of use.

  The material chosen is in the example described is polypropylene with a module of 950 Mpa for its greater resistance to heat, necessary for reheating the bottle as well as for its transparency making it possible to visualize the formation of lumps from milk powder. , and finally for its rigidity necessary for good

holding and stability of the bottle.

  Figure 5 shows a detailed view of an alternative embodiment of the neck. The retractable body has a semi-toric groove (20) to facilitate handling during the extension of the body, and a re-entrant disc shoulder (21) surmounted by an annular groove (22) of a section smaller than the section of the neck . This annular groove improves resistance to ovalization of the upper

  retractable body and threaded neck.

  FIG. 6 represents a top view of the threaded neck, which comprises only two diametrically opposite notches (23, 24), the locking face (25, 26) of which forms an angle greater than 10, preferably of the order of 30 relative to the radial plane, and the height of which, measured in a radial direction, is included

between 4.5 and 7 mm.

  Figures 7 and 8 show two other alternative embodiments. According to the variant shown in Figure 7, the retractable body comprises a ring (30)

  rigid injected under the thread (32).

  According to the other variant shown in FIG. 8, the retractable body is extended by a rigid part (31) having a thread (32) and an annular groove (33) for the exercise of traction. This plastic part is welded to the last bellows (34) of the body

retractable.

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Claims (13)

  1 - Bottle, in particular a bottle, having a retractable body made of substantially cylindrical plastic material, provided at its upper end with a threaded neck characterized in that said body has an area between the retractable part and the threaded neck or not (18) semitoric (15) for the exercise of traction when the body is in the folded position.   2 - Bottle, in particular bottle, according to claim 1 characterized in that the semi-toric zone (15) is convex.   3 - Bottle, in particular bottle, according to claim 1 characterized in that the semi-toric zone (15) is concave.   4 - Bottle, in particular bottle, according to claim 3 characterized in that the radius of the section of said concave semi-toric zone (15) is greater than 2 millimeters.   - Bottle, in particular a bottle, according to claim 1 characterized in that the semi-toric zone is extended by a disc shoulder (17) in a plane substantially transverse.   6 - Bottle, in particular bottle, according to claim 1 characterized in that the semi-toric zone (15) is extended by a disc shoulder (17) reentrant   in a substantially transverse plane. 8 2808775   7 - Bottle, in particular a bottle, according to claim 1 characterized in that the semi-toric zone (15) is extended by a disc shoulder (17) coming out   in a substantially transverse plane.   8 - Bottle, in particular bottle, according to one   at least of the preceding claims, characterized in   the neck has a band above the thread   cylindrical provided with at least one notch (20).   9 - Bottle, in particular bottle, according to claim 8 characterized in that said strip   cylindrical has two notches (19,20).   10 - Bottle, in particular bottle, according to   at least one of the preceding claims, characterized   in that said body has between the retractable part and the bottom a concave semi-toric zone (16) for the exercise of traction when the body is in position folded up.   11 - Bottle, in particular bottle, according to   at least one of the preceding claims, characterized   in that the retractable body has a semi-groove   O-ring to facilitate handling when extending the body, and a re-entrant disc shoulder surmounted by an annular groove (22) of a section smaller than the section of the cervix.   12 - Bottle, in particular bottle, according to   at least one of the preceding claims, characterized   in that the neck comprises only two notches (23, 24), diametrically opposite, the locking face (25, 26) of which forms an angle greater than 10, preferably of the order of 30 relative to the radial plane, and whose height, measured in a radial direction, is included between 4.5 and 7 mm.   13 - Bottle, in particular bottle, according to   at least one of the preceding claims, characterized   in that the retractable body has a ring (30)   rigid injected under the thread (32).   14 - Bottle, in particular bottle, according to   at least one of the preceding claims, characterized   in that the retractable body is extended by a rigid part (31) having a thread (32) and a groove   annular (33) for the exercise of traction.