CN100427004C - Sealing parts - Google Patents

Abstract

The present invention relates to a fragile seal component which can be used for containers or packaging bags or envelopes which can be used repeatedly. The former can be closed by one part which is positioned on a second part. The second part is provided with an opening of a head of admitting the fragile seal component. The seal component can be locked into the opening by the mode that the seal component can not be disassembled if not crushed. The seal component can lock the first part on the appropriate position of the second part in a filling vestige mode at the inserted position. The seal component is provided with a neck part which extends between the thin line and the main body part of the seal component. The one part is a fastening sheet with a zipper of an envelope which can be used repeatedly in general, and the second part (1) is a casing or a cavity of a lock unit. The latter is arranged on one end of the envelope of nearing to a zipper opening.

Description

Seal

Technical field

But the present invention relates to a kind of disposable lock construction element (a kind of " seal ") that is used for closing containers, but closing containers for example have that opening can close bag, bag, or reusable big envelope.This container has a lock unit at opening part, and lock unit cooperates with closing containers with the lock construction element of disposable closing containers.

Background technology

The present invention for example, relates to the Container Type that illustrates among the GB-A-1424680.A kind of big envelope with the slide fastener opening has been described in this list of references.End at the slide fastener opening is equipped with lock unit, and this lock unit has one one side that the housing or the chamber of the protuberance of opening are arranged.The connecting plate of slide fastener has a centre bore, so that can be engaged on the chamber, then disposable potted component (be called for short " seal ") is pushed in the chamber fastener tabs being locked in suitable place, thereby pins the opening of band slide fastener.Seal is individual with the molded flat elements of suitable plastic basically, and it has a head and a body portion.Between these two portions, there is the device of a part weakness or frangible and the resilient barb by an arrow configuration that head is locked in the chamber.The size of seal is such, makes weakness or frangible portion branch be in the mouth place in chamber.So the sealing part can not whole unload, and must make a mess of seal for the connecting plate of throwing off slide fastener from the chamber.Therefore lock unit and disposable seal provide filling person's movements and expression (tamperevidence) for container. and this person's movements and expression container (big envelope of band slide fastener) as shown in Figure 6, indicates prior art.

The present invention relates to the slide fastener big envelope of the above-mentioned type, though for avoiding any suspection to play the container that the present invention that mailbag speaks of below also can be applicable to other type, wherein a part (edge, flap) cooperates with another part that lock unit is arranged (for example body of container).

Summary of the invention

But the objective of the invention is for providing the novel lock member as the bag of slide fastener or big envelope and so on closing containers.

According to the present invention, the invention provides a kind of container that is used for, bag, bag, or the frangible and disposable seal of big envelope, container cuts out with a part that is positioned on the second portion, second portion has an opening that is used to admit the frangible seal part, the mode that frangible seal is locked opening is just not destroy to unload, the seal that is in its insertion position is locked in first in a kind of person's movements and expression mode of filling the appropriate location of second portion, wherein seal comprises a head and a body portion, in use head is arranged in the opening of described second portion, seal also comprises a thin and delicate line that head and body are scratched, and wherein body also has one than the thin a lot of neck of main part, neck extends between thin and delicate line and main part, and shoulder is limited at the junction of neck and main part, makes in use when seal is inserted in the second portion to have the gap between the mouth of opening and described shoulder.

In general, described first is the connecting plate of the slide fastener opening of reusable big envelope, and second portion is mounted on the big envelope shell chamber in other words of the lock construction element of contiguous slide fastener opening one end.

The seal head preferably has a groove, so that be positioned on the respective rib in second portion or the chamber.In addition, the chamber can comprise a groove, and the rib on the seal is arranged in this groove.

The long-neck of seal is that unloading of seal provided convenience and seal can be used in the lock construction element that has damaged, for example produces the damage of irregular projection at the opening part of lock construction element.Be surprised to find, this advantage can obtain under the situation of sacrificing security not too.Traditional idea of the design of seal long-neck and this technical elements is inconsistent, traditional idea tend to suppose seal the as close as possible lock unit of shoulder opening thereby eliminate any gap that may impel filling.

Description of drawings

Below with reference to accompanying drawing a preferred embodiment of the present invention is done more detailed description, accompanying drawing has:

Fig. 1 a and Fig. 1 b represent respectively with the lock unit of the reusable big envelope of zip and the plane of connecting plate, and the lock construction element that is used for one embodiment of the invention is seal in other words, not shown big envelope;

Fig. 2 a and Fig. 2 b are respectively the top and bottom perspective views according to the seal of one embodiment of the present of invention that is used for the lock unit of Fig. 1;

Fig. 3 is the vertical view of the correct position of slide fastener connecting plate on lock unit;

Fig. 4 is the plane that is similar to Fig. 3, but expression is arranged in the seal of lock unit;

Fig. 5 a and 5b are the constructed profiles of seal and lock unit part, show the position of seal in the lock unit chamber;

Fig. 6 is the traditional slide fastener big envelope and the view of lock unit.

The specific embodiment

Fig. 1 represents lock unit 1 and connecting plate 2.Lock unit has a flat base 3 that has raised walls 4, and wall 4 has been determined a seat for connecting plate 2.Substrate has a series of holes 5 of admitting rivet, and rivet is fixed on lock unit on the material of bag or big envelope.The shell that a protuberance arranged in the wall of lock unit 1 is chamber 6 in other words, and a side in chamber 6 (what see at Fig. 1 is downside) has an opening 7.Substrate has a depression 8 that communicates with chamber 6, so that allow the broken segment of seal to shake out outside the chamber in known manner.

Connecting plate 2 has three holes 9,10,11 in this embodiment.Hole 9 is used for connecting with the drawbench (puller) of slide fastener in known manner; The shape in hole 10 is corresponding with the shape in chamber 6, so as to allow connecting plate be positioned at the chamber above; Hole 11 also is positioned on the clamp 12 that swells on the lock unit base part in known manner.

Fig. 2 a and 2b represent can arbitrarily use and frangible seal 13 according to this embodiment of the present invention.Seal 13 is flat basically and a head 14 and body 15 is arranged.Head has the arrow configuration of the resilient barb 16 of form known.A thin and delicate line 18 that is formed by elongate grooves (seeing the most clearly in the upward view of Fig. 2 b) is arranged between body and head, and thin and delicate line 18 provides the frangible connection between head and the body.Body 15 comprises main part entity part 15a in other words, and entity part 15a is square (also can be desirable any other shape) basically.Thin neck 15b is arranged between main part 15a and thin and delicate line 18.Shoulder 19 is arranged in the junction of neck 15b and main part 15a.Neck 15b stretches out sizable distance from thin and delicate line 18 (therefore in use from chamber mouth 7), and for example 1.5mm is to 4mm, and preferred 2mm is to 2.5mm.The overall size of seal generally is about 22mm length * 11mm, and wide * 2.5mm is thick.The thickness of head is generally 2.0mm.But body Bao Kehou.Neck preferably has parallel limit, and promptly it is straight rather than oblique, but also can be oblique and/or arc.

Another preferred features of sealing part is the cannelure 14a along head 14.Seal also has a recess 14b in its termination.

In order to close closure or big envelope, connecting plate 2 is positioned on the chamber 6 of lock unit 1 with known form.The position of connecting plate 2 as shown in Figure 3.What should particularly point out is, the hole 10 and chamber 6 registrations of connecting plate, and hole 11 is positioned on the clamp 12 of lock cell basement high.

In order finally to pin big envelope in filling person's movements and expression mode.The seal of representing among Fig. 2 13 is pushed into chamber 6, and the head 14 of seal is in the chamber, and particularly resilient barb 16 is in wall back, chamber, does not smash seal body 15 like this and just can not be from the head unloads in 14.In this position, the body 15 of seal and overlapping of sheet 2.The STA representation of lock of big envelope is in Fig. 4, and in the drawings, the inwall in chamber dots.The thin and delicate line 18 of seal is on the opening 7 in chamber 6.The position of the groove 14a that Fig. 4 represents is the head along seal, on the internal-rib 21 of the inside, chamber (being on " top board " in chamber).Recess 14b is positioned on the lug 22 of back lining face.

The profile of Fig. 5 a and 5b represents that just (Fig. 5 a), seal is positioned (Fig. 5 b) in the chamber to seal then near chamber 6.The opening 7 that is to be noted that the chamber is oblique, and promptly the edge 23 of the chamber wall on opening tilts with respect to the plane of lock unit substrate 3.These characteristics allow to reach the thickness of seal 13 and the high tolerance between the open top, and the shape of Qing Xieing does not produce obstacle to the insertion of seal simultaneously.

In order to open big envelope, broken thereby body 15 unloads (this unloading provides the uncommitted filling person's movements and expression of opening) to seal in known manner along thin and delicate line 18.The neck 15b of seal has made things convenient for and smashes and unload.14 of seal shakes out from the bottom in chamber, and the chamber communicates with depression 8 in the lock unit substrate 3.This is recessed in the shoulder width of extended cavity down, makes the width that caves in greater than the initial width that receives the opening 7 of seal head.

Lock unit can be formed by suitable material, as hardened steel, or plastics, as nylon, polypropylene, ABS, styrene or engineering plastics.The disposable seal of supply in enormous quantities generally by having suitable elasticity but frangible plastics form, as styrene, ABS, nylon or polypropylene.

Though the big envelope of reference tape slide fastener of the present invention illustrates that it relates to the container of other type equally.For example, container can have a dag that has a hole, the lock unit registration of this hole and container body part, and seal enters lock unit so that dag is fixing in position then.

Claims (4)

1, a kind of frangible and disposable container that is used for, bag, bag, or the seal of big envelope, the part (2) that container can be positioned at above the second portion (1) is closed, second portion (1) has an opening (7) of admitting easy broken seal (13) part, the mode that seal is locked opening is, not brokenly just can not unload, seal (13) is locked in the correct position of second portion (1) in a kind of mode of clogging person's movements and expression in its insertion position, wherein seal (13) comprises head (14) and body (15), in use, head is arranged in the opening (7) of described second portion, and thin and delicate line (18) is demarcated head (14) and body (15), and wherein body has one than the thin a lot of neck (15b) of main part (15a), neck (15b) extends between thin and delicate line and main part (15a) and has the length of 1.5mm to 4mm, shoulder (19) is limited to the junction of neck portion (15b) and main part (15a), make in use, when seal is inserted in the second portion, between the mouth of opening (7) and described shoulder (19), have the gap.

2, according to the described a kind of seal of claim 1, it is characterized in that, have the head (14) of the seal (13) of groove (14a) or rib, be used for and interior respective grooves (21) or the rib registration of second portion (1).

3, according to claim 1 or 2 described a kind of seals, it is characterized in that neck (15b) has substantially parallel limit.

4, require described each seal according to aforesaid right, it is characterized in that the length of neck is from 2mm to 2.5mm.

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