WO2010025740A1

WO2010025740A1 - Sealing device

Info

Publication number: WO2010025740A1
Application number: PCT/EA2009/000003
Authority: WO
Inventors: Дмитрий Иванович ПАХОМОВ; Николай Петрович БИРЮКОВ
Original assignee: Pachomov Dmitriy Ivanovitch; Birucov Nicolai Petrovitch
Priority date: 2008-09-03
Filing date: 2009-04-16
Publication date: 2010-03-11
Also published as: EA013557B1; EA200801799A1

Abstract

A sealing cap comprising a decorative shell with spots of reduced strength, a threaded cylindrical socket connected to the decorative shell and designed to interact with the external thread of a bottleneck, and a pouring element which is provided with a lid, a lock valve and seal rings on the outer surface and which is arranged in the inner part of the cylindrical socket. The pouring element comprises a hollow insert having channels for the passage of a liquid and an end face in the shape of a cone, the smaller diameter of which is oriented towards the pouring opening of the bottle. A spherical flange with a sharp edge and a flat horizontal surface at the end is provided along the larger diameter of said cone. A means for uniformly distributing force during sealing is provided on the inside end surface of the pouring element lid.

Description

Closure cap

The present invention relates to capping caps, and more specifically screw capping caps, designed to close glass bottles with a threaded neck whisk, as well as to prevent re-filling of bottles after opening.

Known closure, comprising a housing with at least two O-rings on the outside for tight contact with the inner walls of the neck of the bottle and with a through cavity, blocked from one end of the housing by a shut-off valve located in the cavity of the housing, and from its other end - a hollow insert with channels for the passage of fluid, with a central protrusion and an annular groove on its wall, a cover with annular protrusions for blocking the channels for the passage of fluid in the insert, one of which is central to the ring protrusion is tightly connected to the central protrusion of the insert by means of a conical connection, and the other annular protrusion has an annular thickening at its free end, tightly placed in the annular groove of the insert, and a cap located on top of the cap and having side walls to cover the neck of the bottle (US Pat. , IPC B 65 D 49/04, publ. 10/26/1999).

A disadvantage of the known means is the insufficiently reliable fixation of parts and low sealing characteristics, as well as the low tightness of the connection of the body with the neck of the bottle.

A pouring device with an improved interlock is also known for securing inside the neck of a vessel (International Application WO 02/22455, IPC B65D47 / 06, published on March 21, 2002). The device comprises a peripheral skirt with means of hermetic fixation in the neck, a pouring element and means for temporarily connecting the pouring device to the closure cap, while the peripheral skirt contains a lower part that extends radially apart to ensure fixation of the pouring device in the neck. In addition, the pouring device contains a rigid part that moves axially in a downward direction inside the peripheral skirt as a result of a transition, usually irreversible, from the upper position to the lower position during fixing

SUBSTITUTE SHEET (RULE 26) this pouring device and the closure cap in the neck, as well as a means of interaction between the lower part and the rigid part, transforming the axial movement of the rigid part into the radial movement of the lower part, and axial movement is possible only when this pouring device is installed in the neck of the vessel The disadvantage of this device is the complexity designs that impede mass production in the conditions of using technologies and the main methods of processing plastics for consumer packaging, manufactured by injection molding and its modifications.

The closest in technical essence is a closure cap for a standard neck rim, including a decorative casing with places of weakened strength, an internal threaded cylindrical sleeve made of a polymeric material, designed to interact with the external thread of the bottle neck connected to a decorative casing, the inside of the sleeve contains a rigidly fixed pouring element with a lid and a shut-off valve (EA Ni- 8659 IPC B65D41 / 38, published on 06/29/2007)

A disadvantage of the known cap is the unreliable connection of the lid with the pouring element, which contributes to its disconnection during transportation due to different shrinkage of materials at a temperature difference, as a result of which there is a low tightness of the closure, as well as insufficient structural rigidity between the parts when closing, increasing the sealing ability

The objective of the invention is to increase the sealing ability of the parts of the closure cap, the reliability of the closure, as well as the expansion of technological capabilities due to the additional means of uniform distribution of force during closure.

The problem is solved in that the closure cap contains a decorative casing with places of weakened strength, a threaded cylindrical sleeve designed to interact with the external thread of the bottle neck, connected to the decorative casing, a pouring element with a lid, a shutoff valve and O-rings on the outer surface, installed in the inner part of the cylindrical sleeve, while the pouring element contains a hollow insert with channels for the passage of fluid, connected by ribs with a Central protrusion pom, the end surface of which is made cone-shaped with a smaller diameter towards the pouring hole bottles, with a larger diameter of the cone made of a spherical flange with a sharp edge and a flat horizontal surface at the end, and on the inner end surface of the lid of the pouring element a uniform distribution of force is made during capping.

Preferably, the means for distributing uniform force during closure is made in the form of an annular protruding collar with the possibility of contacting with the conical surface of the hollow insert.

Preferably, at least two protrusions are made on the inner surface of the cylindrical sleeve above the threaded portion for fixing the cover of the pouring element. In the particular case of the invention, sharp annular protrusions are made on the outer surface of the hollow insert, and annular beads are made on the inner surface of the housing of the pouring element with the possibility of axial formation of the joint during assembly.

Preferably, an annular flange is made on the end surface of the housing of the pouring element to fix the housing on the outer rim of the neck of the container with the possibility of protecting the hollow insert from deformation and destruction during capping.

Preferably, the cover of the pouring element is made with a flexible sealing grip with the possibility of its fixation on the flat horizontal surface of the spherical flange of the hollow insert.

Preferably, an annular groove is made on the end surface of the cover of the pouring element with the possibility of autonomous operation of the sealing grip during assembly of the product and reuse.

The lower and upper ring seals are made on the outer surface of the housing of the pouring element, and the upper ring seal is located in the region of the hollow insert, with the possibility of creating a radial force during capping and protecting the latter from unauthorized dismantling.

Preferably, the hollow insert of the pouring element is made with a conical sealing smooth surface, and the lid with a conical sealing annular protrusion, the contact sealing surface of which does not extend beyond the mating sealing surface of the hollow insert, with the possibility of preventing contact with the sharp edges of the edges of the hollow insert and chip formation during assembly and capping . In addition, when capping the annular protrusion lid takes the geometric shape of the sealing surface of the sleeve, enhancing the sealing of parts.

In FIG. 1 shows a general view of a closure cap; in FIG. 2, view A in FIG. one ;

In FIG. 3 is a top view of a threaded cylindrical sleeve. The closure cap consists of a decorative casing 1 with places of weakened strength 2, a threaded cylindrical sleeve 3, a pouring element 4 with a cover 5 and a hollow insert 6.

A threaded section 7 is made in the inner part of the sleeve 3, and concentric annular projections 8 are made on the outer end surface of the threaded cylindrical sleeve 3, separated by radially directed beams 9, forming open cavities 10, through the outer side surface of the sleeve there are non-through grooves 11 with a bevel 12 at the end forming jumper 13 in the lower part of the sleeve to facilitate installation in a decorative casing and ensure air outlet during assembly of parts, and also eliminates the manifestation of the relief of the thread on the outer surface the surface of the casing 1 when capping. The annular protrusions separated by beams provide structural rigidity of the sleeve 3, ensuring the reliability of the closure. Open cavities 10 also make it possible to evenly distribute glue over the surface of the sleeve 3 when securing it in a decorative casing. To fix the cover 5 of the pouring element 4 on the inner surface of the cylindrical sleeve 3 above the threaded section 7, at least two discontinuous protrusions 14 are made.

The pouring element 4 is made with lower 15 and upper 16 ring seals, a through cavity 17 and an annular flange 18. Moreover, the upper ring seal 16 is located in the region of the hollow insert, creating a radial force during capping, which allows the latter to be protected from unauthorized dismantling. The annular flange 18 is designed to fix the housing of the pouring element on the outer rim of the rim of the neck of the container, protecting the hollow insert 6 from deformation and destruction during capping. On the inner surface of the housing of the pouring element 4, annular beads 19 and guide ribs 20 are made. The cavity 17 is blocked from one end of the housing of the pouring element 4 by a shut-off valve 21 in the form of a ball, and from its other end by a hollow insert 6. The guide ribs 20 determine the trajectory of the shut-off valve 21. The hollow insert 6 is made with channels for the passage of fluid 22, with a central protrusion 23 connected to it by ribs 24, a smooth conical sealing surface 25, and on the outer surface of the hollow insert there are sharp annular protrusions 26 for interaction with the shoulders 19 of the pouring element housing, which increases reliability tightness capping. The end surface of the hollow insert 6 is made conical 27 with a smaller diameter towards the pouring opening of the bottle, and a larger diameter of the cone has a spherical flange 28 with a sharp edge and a flat horizontal surface 29 at the end. The execution of the end surface of the hollow insert 6 conical with a smaller diameter towards the pouring opening of the bottle, and along the larger diameter of the cone with a spherical collar 28 enhances the sealing of the closure, preventing leakage of liquid onto the side surface of the container during use, as well as allowing the last drop to slide into the container. The sharp edge of the flange 28 with a flat horizontal surface 29 at the end increases the reliability of fixing the lid 5 and insert 6. On the inner end surface of the lid 5 of the pouring element 4, a uniform distribution of force is made when capping in the form of an annular protruding collar 30 for contact with the conical surface 27 of the hollow insert 6, as well as a sealing ring protrusion 31, a flexible sealing grip 32 with an engagement element 33 for connection with a hollow insert and fixation on a flat horizontal surface 29 s spherical flange 28 of the hollow insert 6. In addition, on the end surface of the cover 5 of the pouring element 4 there is an annular groove 34 for autonomous operation of the sealing gripper 32 during assembly of the product and reuse. Moreover, the contact sealing surface of the protrusion 31 does not extend beyond the mating sealing surface of the hollow insert 6, which prevents contact with the sharp edges of the ribs 24 of the hollow insert 6 and the formation of chips during assembly and capping.

The annular protrusions 6, separated by beams 7 provide structural rigidity, ensuring the reliability of the closure. Open cavities 8 also make it possible to uniformly distribute glue over the surface of the sleeve when fixing it in a decorative casing. Mentioned perforations 2 facilitate the first opening of the bottle and the removal of the cap, and also eliminates the manifestation of the relief of the thread on the outer surface of the casing 1 during capping. The device operates as follows. First, an insert 6 is tightly inserted from the end into the housing of the pouring element 4 with the shut-off valve 21 located in its cavity 17, and its sharp annular protrusions 26 enter the annular flanges 19 made on the inside of the housing of the pouring element, thereby ensuring their tight connection preventing the passage of fluid between the insert 6 and the pouring element. A pouring element 4 was inserted into the inner part of the cylindrical sleeve 3, perforation 2 of the decorative casing 1 was carried out on a roller machine. The inner cylindrical sleeve 3 was connected to the decorative casing 1 using the appropriate adhesive and the finished product was obtained.

Bottle capping is performed by pressing from top to bottom while screwing the bottle on the neck, as well as rolling the casing into the corresponding groove on the bottle by means of a capping machine.

When opening the bottle, the upper part of the cap is rotated, while the perforation breaks, the upper part of the cap is separated with the cap 5. When the bottle is tilted, the shut-off valve 21 moves away from the lower opening of the housing 1 and the liquid enters the cavity 17, then through the channels for the passage of liquid 22 hollow insert 6 - to the output of the shutter. In the vertical position of the bottle, the ball blocks the hole and prevents the evaporation of the liquid, as well as the passage of air into the bottle. The lower part of the decorative casing 1 remains on the neck of the bottle, signaling its first opening. Cover 1 of the cap was made of aluminum by stamping

(hoods), other parts are made of environmentally friendly polymeric materials.

The proposed technical solution opens up great opportunities for providing large options for the appearance of closures, and will also increase the degree of protection of finished products from counterfeiting, improve sealing of the closure, while maintaining the high technology of closures in large-scale factory production.

Claims

Claim

1. A closure cap containing a decorative casing with places of weakened strength, a threaded cylindrical sleeve designed to interact with the external thread of the bottle neck, connected to the decorative casing, a pouring element with a cap, a shut-off valve and O-rings on the outer surface, mounted in the inner part of the cylindrical bushings, characterized in that the pouring element comprises a hollow insert with channels for the passage of fluid, connected by ribs with a central protrusion, end over awn which is made cone-shaped with a smaller diameter towards the pouring opening of the bottle, and a large-diameter cone is made spherical bead with a sharp edge and a flat horizontal surface on the end and on the inner end surface of the cover spout means configured uniform force distribution when capping.

2. The closure cap according to claim 1, characterized in that the means for distributing uniform force during closure is made in the form of an annular protruding collar with the possibility of contacting with the conical surface of the hollow insert.

3. A closure cap according to claim 1, characterized in that at least two intermittent protrusions are made on the inner surface of the cylindrical sleeve above the threaded portion for fixing the cover of the pouring element.

4. The closure cap according to claim 1, characterized in that on the outer surface of the hollow insert sharp annular protrusions are made, and annular flanges are made on the inner surface of the housing of the pouring element with the possibility of axial formation of the sealing joint during assembly.

5. The closure cap according to claim 1, characterized in that an annular flange is made on the end surface of the housing of the pouring element to fix the housing on the outer rim of the neck of the container with the possibility of protecting the hollow insert from deformation and destruction during closure.

6. A closure cap according to claim 1, characterized in that the lid is made with a flexible snap grip so that it can be fixed on the flat horizontal surface of the spherical flange of the hollow insert.

7. A closure cap according to claim 1, characterized in that an annular groove is made on the end surface of the cover of the pouring element with the possibility of autonomous operation of the sealing grip during assembly of the product and reuse.

8. A closure cap according to claim 1, characterized in that the lower and upper ring seals are made on the outer surface of the housing of the pouring element, and the upper ring seal is located in the region of the hollow insert, with the possibility of creating a radial force during capping and protecting the latter from unauthorized dismantling.

9. The closure cap according to claim 1, characterized in that the hollow insert of the pouring element is made with a conical sealing smooth surface, and the lid with a conical sealing annular protrusion, the contact sealing surface of which does not extend beyond the mating sealing surface of the hollow insert with the possibility of preventing contact with the sharp edges of the ribs of the hollow insert and the formation of chips during assembly and capping.