CN100457565C - Safety seal for cap - Google Patents

Abstract

The invention relates to a safety seal for a cap, of the type intended for closures for bottles. The construction of the inventive seal is characterised in that it comprises breaking points along the edge as well as other breaking points which are used to separate the disk from the flap of the seal, such that a lower ring may or may not be left on the neck of the bottle. The invention is further characterised in that the fixing means thereof comprises projecting tabs that are equidistantly distributed along the length of the inner surface of the lower cylindrical body of the seal.

Description

Safety seal for cap

Technical field

The present invention relates to be used for seal a kind of safety seal for cap of the various sealing members of bottle.

Background technology

Safety seal for cap also has been extended to bottle with its application, the sealing member that has these characteristics in a large number enough is cited as example: the sealing member in No. 22272/87, the European patent application publication No. EP0502379 of Guala company and the Italian patent of invention, and, just as known in practice, these sealing members have the device that is used for the fracture of the bottom in skirt section, and this device is isolated in one from the remainder of sealing member and encircled.

Therefore, known sealing member has a depression in last base portion, and it is shaped as down " S " and has end, and its central area and independent seam extend jointly, arrives the peripheral edge of sealing member.

Have only by these otch on last base portion, beverage production merchant's brand name could be observed very difficultly, and this is a least welcome feature.

When the structure that is formed by the above-mentioned groove that falls two lugs (tab) that " S " produce and its prolongation is released, adopt the shape of support, an end therein, flange begins to extend with respect to the following ring portion in skirt section from its region of fracture, and another flange starts from the base portion of sealing member; And its edge is as one man crooked with " S " in-to-in curve.

Therefore, another problem of this type of safety seal, in fact prior, it is the practical structures that comes from support, when user's insertion finger nail below the curved edge of flange, when lifting flange as lever, the risk of breaking finger nail is just arranged with nail.

The fastening of bottle cap body back seal spare realized by peripheral projections usually.Can mention Spain's patent of invention fully, publication number ES2153263, wherein show one and pour into bottle cap, its device that is fastened to container is made up of the continuous step that is arranged in peripheral and in-to-in triangular-section, allow bottle cap to enter the bottleneck top, but by stoping disengaging on the straight part that container edge is abutted against the triangle step.

The problem of this class fastening means is to insert clips terminal conical surface, and this conical surface is beneficial to the edge that enters inside subject, and this forms pressure on whole circumference.Each point of this triangle section step all has a corresponding point, has only by stretching on the cylindrical tangential direction at the projection place of triangle section, can allow that just the projection that has than minor diameter with respect to the inside subject edge enters.

Be also pointed out that maximum tension force occurs in the edge, it has defined the summit of its section triangle, and at this place, summit, its resistance that runs into is less.

A solution: allow enough distortion, thereby outer body is exactly sealing member in this case, through entering than minor diameter of the edge of triangle step, this scheme is to reduce the size of step.

This scheme allows sealing member to be easy to enter; Yet the support surface after the reducing also to mean of this projection size reduced to insert is a safety element at this, in the time of must guaranteeing sealing member safe, is beneficial to its dismounting.

Summary of the invention

The present invention relates to a kind of safety seal for cap in the various safety seals, normally be used for inebriant.

The invention discloses the special seal designs based on the succinct and quality of surface working, wherein also comprise some fastening lobes, it allows to be easy to inlet, and allows disengaging and the inappropriate operation of enough big power with preventing bottle cap.

The invention is characterized in a kind of special construction of sealing member, base portion on it combined with the wide disc with complete idle surface that it allows easily the brand name in conjunction with the drink manufacturing merchant.

This disc has radially extendible portion of semicircle, is the lug form and is used as lug, and it is accessible that this proof green phase is bored a hole over the ground, the part that it has covered that regional peripheral edge of sealing member and has been adjacent to the following flange of this peripheral edge.

Wide disc comprises the breaking-down point that is provided with away from lug zone, is beneficial to raise lug and the finger nail that do not influence the user, and lug links to each other with nail with respect to the edge of base portion.

Also have other similar combination, but limit at least two weakened line (weakened line), be used for other parts separation disc with respect to the skirt section of sealing member with the form of fracture zone.

But these fracture zone can be a plurality of and can prolong weakened line until the lower area that almost reaches the skirt section, stay base ring on bottleneck, or reach the edge in skirt section.

About the device of fit sealing spare, in the background technology part of invention, explained and used the peripheral shortcoming of projection continuously, because it uses high pressure that sealing member is inserted on the bottle cap, caused high tangent shearing stress, and strut member is not sufficient to guarantee its fastness always.

This shortcoming by in conjunction with arbitrary interval the well-distributed strut member overcome, it is forming enough supports in the in-to-in projection on straight surface.

The present invention is characterised in that the special construction of sealing member, and this structure will be associated with the breaking-down point and the other parts combination at edge, and other parts make disc be beneficial to separate with the sealing member skirt section and stay or do not stay base ring on bottleneck.

It is characterized in that a kind of fixed form, use the lobe of the following cylinder interior that is evenly distributed on sealing member.These lobes appear in the birds-eye view, have straight edge and the below has clinoplane, form the taper that allows capacity to insert.

Its feature is also that along the ennation on lobe plane when sealing member had been inserted on the bottle cap body, this ennation provided enough resistances for the pressure of top step.

The strut member of these sparse settings comprises some lobes, is the form of the inner process on the lower cylindrical body of safety seal.

In birds-eye view, each lobe is provided with the edge, and this edge is outstanding towards inside on the straight line portion of secant one, thereby avoids occurring the turning, and its formation can be used for removing from bottle cap the potential fulcrum of sealing member.

Because the projection in the birds-eye view is formed by secant, the degree of depth of lobe is determined according to the radius of its width and sealing member.

Lobe have a plane with the bevelled lower surface, it forms taper, is beneficial to sealing member and enters when sealing member inserts.

This projection is extended with vertical surface according to second plane, increased height and avoided occurring sharpened edge than small intensity, rather than directly on step, stop this plane with the bevelled surface.

On this plane, straight step appears, formed support thereon to the bottle cap body edge, sealing member is fastened to this place.

Therefore, each lobe all forms according to three planes: be inclined to bevelled lower flat; Vertical mid-plane, it in height extends lobe; And the upper plane of level, it has formed strut member.

Because strut member is independent, each lobe has a strut member, so during insertion, in the place that lobe occurs, the sealing member cylinder has certain deformation.

The mode of this distortion makes projection tend to radially outward push away, and tends to reduce its sinuousness by pulling force in the process of tension in the part between the projection, inserts to allow sealing member.

In this way, make cylindrical distortion be similar to a polygon in some aspects, wherein lobe is arranged on the described polygonal summit.

In identical insertion process, after lobe was by the edge that it leaned on, described lobe entered into the depression of holding them.

Cylindrical structure has been got back to its virgin state before distortion, so lobe has formed enough supports and prevents its disengaging on the edge of bottle cap.

Description of drawings

This descriptive specification sheets contains a cover accompanying drawing, and preferred implementation of the present invention illustrates in the mode of illustrative and indefiniteness.

Fig. 1 shows the last base portion of preferred embodiment and the front view of safety seal, from the top view of lug.

Fig. 2 show with bottle cap in conjunction with the time sealing member cross-sectional plane, sealing member is represented emphatically with thick line.

Fig. 3 shows according to the birds-eye view of the top of the embodiment of sealing member of the present invention and bottom and two section-drawings, and the securing device of lobe is shown.

Fig. 4 shows the details birds-eye view and the section-drawing of lobe, wherein, the barrel portion of the sealing member at lobe place is partly illustrated as a reference.

The specific embodiment

According to aforesaid, the present invention relates to a kind of safety seal for cap in various lid safety seals, it is characterized in that in essence, on base portion on it 1, combine wide disc 2, disc has and the 4 relative lugs 3 of boring a hole, perforation 4 is extended along a channel part, and channel part has covered the peripheral edge 5 of last base portion 1 and the part in skirt section 6.

Wide disc 2 has some breaking-downs point 7 that are provided with away from lug 3, and at least two outside weakened line 9 are arranged in this skirt section, and wherein said weakened line 9 is used for the remainder of disc 2 from sealing member skirt section 6 separated with described breaking-down point 7.

The surface of disc 2 is blank fully, can be used for trade name in conjunction with maker.

Weakened line 9 almost extends to the lower area in skirt section 6, stays base ring 10 or extends to its edge.

Fig. 3 shows the embodiment of sealing member, and its profile wherein shows lobe 8 or projection than the weak point shown in the embodiment shown in Fig. 1 and 2.This improved purpose is to form on the peripheral recesses of bottle cap and supports.

Fig. 4 shows facing of one of lobe 8 and cross sectional detail equally.

Lobe 8 is defined by three planes:

Bevelled lower flat 8.1, it constitutes enough angles by the taper for projection makes that lid is easy to insert;

Vertical mid-plane 8.2, it extends lobe 8 on height and intensity;

The upper plane 8.3 of level is supported on the inside face of lid peripheral recesses to prevent disengagement of seal member.

In birds-eye view, form under the situation of a secant at perpendicular, can be so that the width a of lobe 8 be associated with degree of depth e, the form of relational expression is:

$e=r\{1-\sqrt{(1-a^2/4r^2)}\}$

Wherein r is the cylindrical internal diameters in lobe 8 places.

With the method, for the internal diameter of determining, by increasing the bigger degree of depth that its width just obtains step.

This big width has reduced the distance between the lobe 8 again, has therefore increased intensity, and this has prevented the cylindrical lower deformation of sealing member when inserting.

In this preferred implementation of the present invention in particular cases, use eight well-distributed lobes 8.

In the section of lobe shown in Figure 48, vertically extendible portion 8.2 can be observed below upper surface 8.3 forms the edge, upper surface by the bottle cap peripheral recesses provides support that (this depression does not illustrate in this drawing herein, adopt with shown in the opposite section of section, that is, this section is corresponding to the centre portion according to the perpendicular that passes through the sealing member axis).

This vertical extendible portion 8.2 just, it relies on compressive force and non-compression to add bending, allows in response to upper support, as facing shown in the projection on the cross section on the background of triangular-section.

This supporting form provides bigger strength, avoids the strong point to expose (even projection of independent element and non-periphery) from the bottom simultaneously, and this is beneficial to pulls out sealing member, prevents the bottle cap maloperation.

The present invention describes in infinite mode, and when the arrangement of material, shape, size and component part changed, essence of the present invention was constant, and those skilled in the art is enough to its reproduction.

Claims (3)

1. safety seal for cap, it is characterized in that, on base portion on it (1), be combined with wide disc (2), this wide disc has and perforation (a 4) relative lug (3), perforation (4) is extended along a channel part, this channel part has covered peripheral edge (5) and a part of skirt section (6) of last base portion (1), and wide disc (2) has some breaking-downs point (7) away from lug (3) setting, and wherein said breaking-down point is positioned between wide disc (2) and the peripheral edge (5), and at least two outside weakened line (9) are arranged in this skirt section, and wherein said weakened line (9) is used for the remainder of disc (2) from the skirt section (6) of sealing member separated with described breaking-down point (7); Between bottle cap and sealing member, the fastening system that also has the form that is a plurality of lobes (8), lobe is evenly distributed on the circumferential length of inside face of lower cylindrical body of sealing member, it will enter and rest on the continuous peripheral recesses of bottle cap, wherein, each lobe (8) constitutes based on three planes: bevelled lower flat (8.1) is used to form the taper that allows insertion; Middle perpendicular (8.2), it in height extends lobe to reach bigger intensity; And the upper plane of level (8.3), being used to rest on projection, this projection is formed by described continuous peripheral recesses, and the cross-sectional plane of described peripheral recesses is opposite with the equal partial cross-section of lobe (8).

2. safety seal for cap as claimed in claim 1 is characterized in that, described outside weakened line (9) reaches the lower area of skirt section (6), stays base ring (10).

3. safety seal for cap as claimed in claim 1 is characterized in that, described outside weakened line (9) extends to the edge of skirt section (6).

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