DE1536015A1 - Openable and closable bag - Google Patents

Description

OR -INO. DIPL.-INO. M. SC. Dll ·! ..- PH YS. OR. DIPL.-PHVS. HOGER-STELLCHT-GRIESSBACH-HAECKER PATENT LAWYERS IN STUTTGART

A 34 957 h

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July 11, 1969

KABUSHIKI KAISHA SEISAN NIPPON SHA, 1 Nishi-8-chome, Ginza, Chuo-ku, Tokyo / Japan

openable and closable bag

The invention relates to an openable and closable bag Made of plastic with two side walls, one piece on the inside with these, at a distance from the outer edges and thus with the formation of grips, a web and a head having rib strip and opposite a groove strip having two arms are attached, which the rib and the groove strips only grips around like a hook on the side facing the inside of the bag in the closed state.

909848/027 1

BATH

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JULY 11, 1969

There are already bags made of plastic known to the On each of their side walls a rib strip and a Uut strip have, aie brought into engagement with each other when pressure is applied and thus the bag closes can be. The arrangement is such that this closure is opened by an internal pressure dea bag a considerable resistance opposed becomes less force while opening the bag when pulling the handles apart requires. This is achieved in the known construction in that the rib strip has an arrowhead-like shape Has head with different tips, such that the inner arm of the groove strip a has a stronger hold than the outer arm. However, the arrow head-like training always results still a certain, not inconsiderable profit eeeen opening from the outside, so that - especially with regard to

can euf the ever thinner walls of such bags come tearing the bag.

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The invention is based on the object to provide a bag with such a closure, in which neither one considerable force acting from the inside and a considerable internal pressure can open the bag from the inside, which however from the outside when pulling apart the handle pieces such open offers particularly little resistance. This task is thereby in the aforementioned bags according to the invention solved that the outer arm of the groove bar via at least one material fit with these parts for direct exercise of a Opening force from the handle on the part serving the outer arm ~ piece is connected and in that the outer arm of the groove strip is connected to the associated handle by connecting means that when moving the handle piece outwards the whole Try to take the outer arm with you. This can preferably be done by doing this happen that the space between the outer arm and the handle is carried out at least in part by a stiffening mass, which are integral with the neighboring parts and thus also? can be made of flexible plastic.

To get a closure that also has an internal pressure able to withstand, which is in the order of magnitude of the Beu. ~ if the inner film is tearing, it is advantageous to if in a known manner on the inside of the rib bar a 7th tooth is attached, which should be backed up to reinforce the bracket

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can, in which case the inner arm of the liut strip, for example engages over this tooth with a hook.

• Easy opening by pulling on the handles

can be improved according to the invention in that the rib strip on the outside has a double arch with a convex section at the head and a concave section Has part on the web, wherein the outer arm of the groove strip engages in the concave part. Zv / ar is also here There is some hooking, but the continuous curvature results in easy sliding of the end piece of the Outer arm of the hat rail along this surface, so that open that with a relatively small force of the bag is possible.

Instead of providing such an S-shaped curve on the rib strip, the outer shape of the web can be as follows be designed so that there is no recess or undercut on the web at all. To do this achieve, for example, the web can be flat on its outer side and tangentially into a curved one Run in the surface of the head »This will make the slide along the free end of the outer arm of the IJut strip

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particularly little resistance to the contrary, so that the opening of the pouch can be opened with an extremely low level of resistance Force can take place *

Instead of changing the shape of the bar, the opening force can also be influenced by the fact that the outer arm designed according to the hat rail X3t «

Palis the opening force does not fall below a certain value should, it is advantageous if the free end of the outer arm in a backstitching of the head engages, and to reinforce the bracket can thereby this end can still be designed in the shape of a hook · Such an engagement can, for example, be in the convex Web part take place. A significantly lower opening force results when the free end of the outer arm does not reach behind the head of the rib strip at all, and this can also be done if the web is convex, done by the fact that the free end of the Aussenara33 is essentially flat or straight.

Especially when the jetty is formed without a single scan ID it can be advantageous to use the free end of the Ausssnarmeg

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To straighten the surface in an arc or that essentially to allow the flat end to hit this surface at an angle, so that there is a linear contact or a contact on a small area.

Furthermore, through the formation of the rib strip, in particular due to the formation in the cross section of the web and the head, in addition to influencing the opening force, also the resistance force against opening be influenced from the inside. This can be done in an advantageous manner by reinforcing the rib strip happen, which offers a greater resistance to bending.

Further advantages and features of the invention emerge from the following description in connection with the drawing, contains the exemplary embodiments of the invention. In the drawing show:

Fig. 1 is a section through a first embodiment a bag with interlocking rib and groove strips according to the invention,

2 shows a section through a second embodiment of rib and groove strips according to the invention,

Fig. 3 is a section through a third embodiment of Rib and groove strips according to the invention,

4 shows a section through a fourth embodiment of rib and groove strips according to the invention,

5 shows a section through a fifth embodiment of rib and groove strips according to the invention.

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July 11, 1969

In Fig. 3, a first embodiment is an invention shown, which is made of a flexible plastic "existing and resealable bag 10 with side clamps 11 and 12 have the walls of the actual bag and which are connected to one another at their lower ends bsi 13.

The bag 10 is also provided with connecting pieces 14 and 15, -the outside de ^ actual bag are arranged, and extensions of the ASPECT / alls 11 and 12 form ,, The end pieces 14 and 15 can be referred to as Srii'ifstüelce as they specifically are provided to enable the user to pull apart the interlocking ribs and hats <.

The bag 10 has rib and Eutleisten 16 and 17, _{e is} the aind integrally with the walls of the bag * The ribs bar \ summarizes a rounded head IS ₃ of a 'projecting beyond the web Bogeaprofil 19 has the 20 of the web in a Absorbed profile with opposite curvature

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transforms. The double arch profile 19, 2o can be used as a Profile with a convex section 19 and a concave Parts of 20 are inscribed. And this therefore asked a approximate S shape.

The head 18, which is rounded towards the front and the sides is also to be provided with a simple tooth 21 which is directed towards the inside of the bag 10 and ; has an undercut contact surface 22, d.it »for Achieving a firm engagement with the flood strip 17 together. The entire hip strip 16 is on the side wall 12 fastened by means of a web 23, the is integral with the container wall "

The rage strip has curved arms 24 and 25 with an inner surface 26 for encompassing the rounded head 18 of the rib strip 16. The arms 24 and 25 have inwardly directed hooks 27 and 28 which serve to close the bag.10. The hook 28 rests against the contact surface 22 of the tooth 21 and the hook 27 engages in a similar manner with the double arched profile of the rib strip sm concave part 20

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opening the bag to oppose a resistance while from outside of the bag, the convex portion 19 of the head resists opening of the bag.

It follows without further ado that the construction differences there is a noticeable difference between the opening force between the tooth 21 and the double arched profile 19, 20, which is required to separate the parts from inside and outside the profile, with the resistance from the Inside of the bag is larger. By changing the profile of the rib strip and / or the groove strip on the outside The opening resistance of the bag can vary in strength be.

Furthermore, a reinforcement 43 made of flexible material is between the curved arm 38 and the inner surface of the handle piece 15 arranged. This stiffening can be in one piece with the bag as a direct connection between point 44 and point 45. The stiffener can be attached to the inwardly directed end piece 42 of the curved arm 38. The stiffening 43 facilitates the opening of the interlocking parts insofar as a tensile force exerted on the handle piece 15 can be transmitted directly to the hook 42 to overcome the pressure or force that the tooth 36 and tries to keep the cooperating hook 40 engaged. Accordingly, the parts are very easily detached.

Many features of the embodiments described below are similar to those of FIG. 1 and reference numbers are used only repeated to the extent that different features are to be designated. -

2 shows an interlocking rib and groove construction, the rib strip 16 of which is similar to the rib strip of FIG. 1, but whose groove strip 30 is shown _{in FIG}

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has a novel Merkaal "The groove strip 30 has curved arms 51,32 similar never in Pigolo. While the ArH 32 is provided with a hook 33 to rest against the cut contact surface 22 of the rib strip 16 as in FIG. 1, the era" . 31 an outer end piece 34, which also runs from arm 31 essentially perpendicular to the side wall 14 of the bag 10, when comparing Pig. 1 and 2 it results that Pig. 2 essentially has the same closing properties at the inner places of the container 10 has, however, a largely vex-j / ingert-a. ' Has opening force * It turns out as follows; that the ge.vads end piece 34 of the hat rail 30 is not functionless, but rather supports the maintenance of the engagement sustaining a ^ vi- ■ echeo the tooth 21 and the hook 33 of the groove strip 30. During the straight arm 34 open dsm itself opposes little resistance, thereby the hooks 33 maintain the Sing riffs state with the tooth 21, whereby the opening is opposite from within the bag resistance.

Pig. 3 shows a further embodiment of the invention which has a rib strip 35 with a simple tooth 36 similar to the simple tooth 21 of FIG. 1, but here is

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.. · ■ -, ■ BATHROOM

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only a simple arched profile 57 available, the attached to the side of the ribs facing outwards is. The simple arched profile shown in Fig.5 hosts that daa open the bag and the handle strips 14 and 15 is further facilitated inasmuch as none concave or undercut surface to accommodate a .Hafcens the groove strip is available. Because this construction also allows a stronger web than in the case of the construction according to Figure 2, only a smaller pivoting movement can occur, whereby a larger proportion of the opening force generated by pulling off the grip strip 14 is transferred directly to the gripping parts *

The groove strip according to FIG. 5 has curved arms 38 and 39 similar to the arms described earlier. The arm 39 is provided with a hook 40 which engages behind an undercut contact surface 41 of the tooth 36. Furthermore has the arm 38 an inwardly directed BSW. inside curved end piece 42, which rests against the simple arched profile 4er rib strip 35 «,

In Figure 4, the features of Figure 2 and 3 are together combined, in particular the designated 35

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July 11, 1969

Rippoaleiate the Figo v / ird, as shown in Fig.2., added in the left bar 30. In Pig. 4 claa approaches straight end 34 of the arm 31 more of the formation of the » simple arched profile 37 dsl 'kin ledge 35 »With this one Execution is very little interlocking between the outwardly facing Enclstiiefc 34 and the arched profile.

37 is present, and the bag can be easily opened when the handle pieces 14 and 15 are bent apart "; As in the previous examples, the straight sections 34 and 37 perform the important puncture, the engagement between the tooth 36 and the cooperating hook 40 to support.

A final version of Afbria is shown in Fig. 5, which shows interlocking - 'gripping ribs' - and hat strips in a similar embodiment to Fig. 3.

BAD OFHQlNAl 09848/0271

Claims (5)

A 34 957 h iX '1 5d60i 5 July 10, 1969 ° ■ Patent claims: 1. Openable and closable plastic bag with two Side walls, on the inside of which are integral with these, in Distance from the outer edges and thus forming Grips have a rib strip and a head having a rib and opposite a groove strip having two arms are attached, which the rib and the groove strips in only on the side facing the inside of the bag When closed, it engages like a hook, characterized in that the outer arm (38) of the groove strip (30) extends over at least one with these parts cohesively for the direct exertion of an opening force from the handle (15) on the Outer arm (38) serving portion (43) is connected. 2. Bag according to claim 1, characterized in that the connection from a front point (45) of the outer arm (38) obliquely upwards and outwards to a point (44) of the handle (15) runs. 3. Bag according to claim 1 or 2, characterized in that the free end (42) of the outer arm (38) is arcuate (Fig. 3). 4. Bag according to one of the preceding claims, characterized in that that the free end (27) of the outer arm (24) is designed like a hook (Fig. 1). 5. Bag according to one of the preceding claims, characterized in that that at least the outer side wall of the web (23) is flat and essentially perpendicular to the side wall (12) of the bag (10) is (Fig. 3, 4). 90984 8/027 1