JP2001080623A - Bottle having reservoir-forming part and stopper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bottle wherewith a stopper is placed at a correct position when the bottle is closed up tightly. SOLUTION: A bottle 1 comprises a reservoir-forming part 9 having a threaded neck 3 joined to a main body 2 made up by blow molding and a stopper 4 having an inner seal-up capsule 5 screwed down onto the neck and an outer cap 6 fixed to the inner seal-up capsule 5, and the reservoir-forming part 9 includes at least one orientational contacting part 15 while the stopper 4 includes a contacting surface which works in collaboration with the orientational contacting part 15 so as to check the turning of the stopper 4 at a position in a specified angle against the main body of the reservoir-forming part 9 at finishing of the screwing down of the stopper. The orientational contacting part 15 is made up by blow molding together with the main body 2 of the reservoir-forming part 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates, firstly, to a portion forming a reservoir having a threaded neck coupled to a blow molded body, and secondly, to be screwed to the neck. And a stopper having an outer cap secured to the inner sealed capsule.

[0002] The present invention is particularly directed to making the part forming the reservoir in two steps, namely, in a first step, the threaded neck is formed integrally with the parison, and then, in a second step, the parison is blown. It relates to a bottle from which the body of the part forming the reservoir is made by molding.

[0003]

BACKGROUND OF THE INVENTION Parisons are blow molded in a different mold than the one from which they were made.

When a portion forming a stopper and a reservoir (sometimes referred to as a “reservoir forming portion” throughout the present specification) has a non-symmetrical and non-circular outer shape, for example, a polygonal cross section, it looks like For this reason, it is desirable to position the stopper at a predetermined angular position with respect to the main body when the bottle is sealed.

[0005] European patent application EP-A-0007274
Has an abutment surface adapted to cooperate with an orientation abutment formed on the neck to lock the stopper at a predetermined angular position relative to the body of the reservoir forming portion once the stopper is screwed. It is proposed to form an outer cap. An abutment is inserted into the outer cap to form this abutment surface.

[0006] Applicants have found that in bottles known in the art, despite having an orienting abutment at the neck of the portion of the bottle forming the reservoir, only a few degrees relative to the desired position. It has been found that there is a case where a large angle shift is still generated.

This shift, which is almost invisible when the outer cap is small, becomes a problem if the stopper has a laterally elongated shape.

It is an object of the present invention to enable both a sealed state to be obtained and a stopper to be satisfactorily positioned in a closed position even if the stopper is of a laterally elongated shape. To provide a new bottle.

[0009]

SUMMARY OF THE INVENTION A bottle of the present invention comprises a portion forming a reservoir having a threaded neck coupled to a blow molded body, and an inner sealed capsule adapted to be screwed to the neck. And a stopper having an outer cap secured to the inner sealed capsule, wherein the reservoir-forming portion includes at least one orientation abutment, wherein the stopper at the end of the screwing of the stopper has a predetermined position relative to the body of the reservoir-forming portion. In a bottle including an abutment surface adapted to cooperate with an orientation abutment to prevent rotation of the stopper at an angular position, the orientation abutment is blow molded with the body of the reservoir forming portion of the bottle. It is characterized by being.

According to the present invention, the accurate position of the stopper with respect to the main body of the reservoir forming portion can be obtained with high reliability, and the above-mentioned disadvantages can be solved.

The present invention relates to a bottle known in the art,
It is based on the finding that the body is blow molded and the orientation of the neck relative to the mold used to blow the parison may change slightly as the parison is transferred from one mold to the other.

The cause of the slight angular deviation noticed by the applicant is this inaccuracy in the angular position of the neck relative to the body of the reservoir forming part.

According to the present invention, when the body of the reservoir forming part is blow-molded, if the orientation contact portion is formed, the precise angular position of the orientation contact portion with respect to the body, and thus the accuracy of the stopper when the bottle is closed, can be obtained. Position is guaranteed.

In a preferred embodiment of the invention, the abutment surface is formed in the thickness of a tubular skirt made integral with the outer cap, and the removal of the tubular skirt from the mold is preferably performed from below. Will be

According to the present invention, European Patent Application EP-A-00
Unlike the stopper described in EP 07274, the production of the stopper is simplified since the abutment does not have to be fixed in the outer cap.

[0016] The tubular skirt described above,
Figure 4 is the outer skirt of the outer cap or the inner skirt of the outer cap secured to the inner sealed capsule.

[0017] The outer cap is advantageously for preventing unscrewing, in which at the end of the screwing of the stopper, the abutment surface passes elastically through the alignment abutment before it abuts the alignment abutment. Boss.

Advantageously, the stopper has at its lower end a ring attached to the outer cap so as to hide the lower end of the tubular skirt on which the abutment surface is formed.

The ring had an inscription on its outer surface, and without such an arrangement it was difficult to apply the inscription directly to the outer cap in view of its geometry. The ring may also be of a different color than the outer cap.

The orientation abutment is preferably in the mating surface of the body of the reservoir forming part.

The body is made of a plastic material or glass.

The bottle has two orientation abutments diametrically opposite with respect to the neck.

The outer cap has two abutment surfaces and a boss to prevent unscrewing.

The inner sealed capsule is made of a semi-rigid material, for example, a polypropylene copolymer.

The outer cap preferably has a tensile modulus of 1
It is made from a plastic material of more than 00 kg / mm @ 2, preferably a thermoplastic or thermosetting material.

The present invention also provides a step of forming a neck with a parison and a body of a portion of a bottle forming a reservoir with at least one orientation abutment near the neck by blow molding the parison. And a step of forming a bottle.

After formation of the reservoir-forming part, the reservoir may be filled with a liquid, for example perfume, and then provided with an inner sealing capsule and at least one abutment surface adapted to cooperate with said orientation abutment. Seal with stopper having outer cap.

After screwing the inner sealed capsule to the neck of the reservoir forming part, the outer cap is attached to the inner sealed capsule.

[0029] The outer cap is advantageously made of a plastics material, its removal from the mold is performed from below, and the abutment surface is formed in the thickness of the tubular skirt of the outer cap.

[0030] Other features and advantages of the present invention will become apparent on reading the following detailed description of a non-limiting embodiment of the present invention, with reference to the accompanying drawings.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The bottle 1 shown in FIG. 1 has a portion 9 forming a reservoir and a stopper 4.

The part 9 forming the reservoir has a body 2 on which a threaded neck 3 having an axis X is provided, on which a stopper 4 is screwed. Can be worn.

The stopper comprises an inner sealed capsule 5, an outer cap 6 fixed to the inner sealed capsule 5, and a metal ring 12 attached to the lower end of the outer cap 6.

The reservoir forming part 9 is made of a glass material or a rigid or semi-rigid plastic material in two steps.

First, a parison is attached to the neck 3, and then the parison is blow molded to form the main body 2. This is known in the art.

In this embodiment, the body 2 is provided on the two substantially flat and parallel main faces 10 and on the upper part of the body 2 and on the respective opposite sides of the neck 3. It has a substantially rectangular cross section defining two shoulders 13.

The joint surface 11 of the body 2 extends along the diagonal of the bottle as shown.

Inner sealed capsule 5 and outer cap 6
Is molded from a plastic material.

When the body 2 is blow molded, two orientation abutments 15 are formed on the bottle shoulder 13 near the neck 3. 2
One orientation abutment (only one of which is visible in Figure 1)
Are located on the diametrically opposite side to the axis X of the neck 3 and within the joint surface 11.

Therefore, the positional relationship between the alignment contact portions 15 of the main body 2 is constant.

In another embodiment, not shown, the body 2
, Only one alignment contact portion 15 is formed.

The upper part 20 of the cap 6 is of an elongated shape with an axis Y perpendicular to the axis X.

The axis Y needs to be parallel to the main face 10 of the body 2 when the bottle is sealed.

As shown in FIG. 2, the lower part 21 of the outer cap 6 has an outer skirt 22 and an inner skirt 23, which are cylindrical and coaxial and are integrally formed with the upper part 20 from a plastic material. Is molded.

The inner skirt 23 has a substantially circular cross-section and secures the outer cap 6 to the inner sealing capsule 5, which is preferably pressed by a force fit. Is provided with a narrow groove parallel to the axis X to be attached thereto.

The outer skirt 22 has a substantially square cross-section in this embodiment, and the inner skirt 23 joins the inner surfaces of the four sides of the outer skirt 22 at four locations 24 around its periphery, and A void 25 is formed in cooperation with the four inner corners of the skirt 22.

The lower end of the outer skirt 22 is shaped to constitute at least one abutment surface 30, preferably two such abutment surfaces as in the embodiment shown, each abutment surface being When the bottle is sealed, the stopper is located at a required angular position and cooperates with the orientation contact portion 15 so as not to move.

As shown in FIG. 3, the abutment surface 30 is formed over the entire thickness of the outer skirt 22 and is parallel to the axis X.

In order to prevent the stopper from unscrewing by itself, a boss 31 for preventing unscrewing is placed in the thickness of the outer skirt 22 and below the abutting surface so that the boss 31 is located below the abutting surface 30. It is formed at a distance from 30.

More specifically, the boss 31 and the contact surface 30 for preventing screw return form a gap 36 therebetween, and the width of the gap is smaller than the gap of the alignment contact portion 15. Big.

When the stopper 4 is screwed onto the neck 3, the boss 31 for preventing screw return gets over the orientation contact portion 15 by elastic deformation, and thereafter the contact surface 30 contacts the orientation contact portion. The user will feel that the bottle has been properly closed by feeling "locked" or stuck.

The boss 31 for preventing unscrewing prevents the stopper from moving alone in the opposite direction due to, for example, the elastic deformation of the inner sealing capsule 5.

Therefore, in order to unscrew the stopper, the user must apply a relatively large force to move the orientation contact portion 15 over the boss 31 for preventing unscrew.

The metal ring 12 is mounted on the lower end of the outer skirt 22, which has on its outer surface a shoulder 35 for this purpose.

The ring 12 hides the strange shape of the lower end of the outer skirt 22 when the bottle is sealed, and is advantageously inscribed on its outer surface, for example with a perfume brand name.

The ring 12 also serves as a hoop to increase the mechanical strength of the lower end of the outer cap 6.

The ring is secured to the cap by any means known in the art and is, for example, clamped thereto.

By forming the contact surface 30 and the boss 31 for preventing screw return in the thickness of the outer skirt 22 of the outer cap 6, the outer skirt 22 can be removed from the mold from below. Yes (Figure 1).

The removal of the entire outer cap 6 from the mold is advantageously carried out from below, so that it can have a top wall 29 which is not provided with openings and concealing elements, which is advantageous from an aesthetic point of view. is there.

The contact surface and the boss for preventing screw return may be formed on the inner skirt of the outer cap.

For example, FIG. 4 shows the lower end 21 'of the outer cap 6', which differs from the lower end described above in that the lower end 21 'is different from the abutment surface 30' and the screw return prevention. The boss 31 'is formed over the thickness of the inner skirt position 23', not the outer skirt 22 '.

The position of the orienting contact portions 15 or each orienting contact portion 15 provided on the main body of the reservoir forming portion is selected according to the location of the contact surface 30 or 30 'to the outer cap.

After filling the main body 2, it is advantageous to attach the stopper 4 in the following manner.

First, the inner sealing capsule 5 is screwed with a predetermined tightening torque for ensuring the sealing.

Next, the outer cap 6 having the ring 12
Or 6 'is lowered vertically so that the inner skirt 23 or 23' is finally pressed into the inner capsule 5.

In this case, the axis Y is preferably parallel to the main face 10 of the main body 2, and each contact surface 30 or 30 ′ is located in direct contact with the orientation contact portion 15. become.

Instead, the outer cap 6 or 6 ′ is lowered with the axis Y at an angle to the main face 10 of the body 2, and then, after fixing the outer cap to the inner capsule, The stopper is further rotated until the surface 30 or 30 ″ abuts the alignment abutment 15.

As a matter of course, the present invention is not limited to the above embodiment.

In particular, changes in the geometry of the bottle body and the geometry of the outer cap are possible.

[Brief description of the drawings]

FIG. 1 is an exploded view of a bottle constituting a first embodiment of the present invention.

FIG. 2 is a partial perspective view of a stopper with a ring removed.

FIG. 3 is a side view of a lower end portion of the stopper with a ring removed.

FIG. 4 is a view similar to FIG. 2 showing another embodiment of a stopper;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottle 2 Main body 3 Neck 4 Stopper 5 Inner capsule 6, 6 'Outer cap 9 Reservoir forming part 15 Orientation contact part 22, 23' Tubular skirt 30, 30 'Contact surface 31, 31' Boss

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) B29L 22:00

Claims (17)

[Claims] 1. A part (9) forming a reservoir including a threaded neck (3) connected to a blow molded body (2), and an inner sealed capsule adapted to be screwed to the neck. (5) and a stopper (4) having an outer cap (6; 6 ′) secured to the inner sealed capsule (5), wherein the reservoir forming part (9) is at least one.
And a stopper (4) which prevents rotation of the stopper (4) at a predetermined angular position relative to the body of the reservoir forming part (9) at the end of the screwing of the stopper. In a bottle (1) comprising an abutment surface (30; 30 ') adapted to cooperate with an abutment (15), the orientation abutment (15) comprises a body of the reservoir forming part (9) of the bottle. A bottle characterized by being blow-molded together with (2). 2. The abutment surface (30; 30 ') has an outer cap (6;
6 ') is formed in the thickness of the tubular skirt (22; 23') made integral with it, and the removal of the tubular skirt (22; 23 ') from the mold is preferably performed from below. A bottle according to claim 1, characterized in that: 3. The bottle according to claim 2, wherein the tubular skirt is an outer skirt (22) of an outer cap (6). 4. The bottle according to claim 2, wherein the tubular skirt is an inner skirt (23 ') of an outer cap (6') fixed to the inner sealing capsule (5). 5. The outer cap (6; 6 ') is elastically actuated before the abutment surface (30; 30') abuts the orientation abutment (15) at the end of the screwing of the stopper. The bottle according to any one of claims 1 to 4, characterized in that it has a boss (31; 31 ') for preventing screw return that passes through the contact part (15). 6. The stopper according to claim 1, wherein the stopper has at its lower end a ring (12) attached to the outer cap (6; 6 '). The bottle according to any one of the above. 7. The ring has an inscription on its outer surface,
7. The bottle according to claim 6, wherein the color is different from that of the outer cap. 8. The method according to claim 1, wherein the alignment contact is located within a joining surface of the body of the reservoir-forming portion. Bottle. 9. The reservoir forming part (9) is made of a plastic material.
8. The bottle according to any one of 8 above. 10. The bottle according to claim 1, wherein the reservoir forming part (9) is made of glass. 11. The body of the reservoir forming part has two orientation abutments (15) diametrically opposite with respect to the neck, the outer cap (6; 6 ′) being provided with two abutment surfaces. (30; 30 ') and boss (31; 3
The bottle according to any one of claims 1 to 10, having 1 '). 12. The bottle according to claim 1, wherein the inner sealed capsule is made of a semi-rigid material, for example a polypropylene copolymer. 13. The outer cap has a tensile modulus of 100.
A bottle according to any one of the preceding claims, wherein the bottle is made of a plastic material of kg / mm2 or more, preferably a thermoplastic or thermosetting material. 14. A method of manufacturing a bottle, comprising: forming a neck with a parison; and blowing the parison to form a reservoir having at least one orientation abutment (15) near the neck. Forming the body (2) of the portion (9) of the bottle that forms the bottle. 15. After the formation of the reservoir-forming part (9), the reservoir is filled with a liquid and then at least one adapted to cooperate with the inner sealing capsule (5) and the alignment abutment (15). 15. The method as claimed in claim 14, wherein the sealing is effected with a stopper (4) having an outer cap (6; 6 ') with two abutment surfaces (30; 30'). 16. After screwing the inner sealing capsule to the neck of the reservoir forming part (9), the outer cap (6;
The method according to claim 15, characterized in that 6 ') is attached to the inner sealing capsule (5). 17. The outer cap (6; 6 ') is made of a plastic material, its removal from the mold is performed from below, and the abutment surface (30; 30') of the outer cap (6; 6 ') is tubular. 17. The method according to claim 15, wherein the skirt is formed in the thickness of the skirt.