DE1486441A1 - Closure device for packaging made of elastic material - Google Patents

Description

Closure device fer packaging made of elastic material Die The invention relates to a closure device made of elastic material, preferably Packaging made from a plastic, as it is more and more used for storage liquid or paste-like products are used and in which the closure device either attached to the packaging or integrally connected to it and which closes the outlet opening of the packaging by squeezing or clamping.

Such packaging is either in the form of small bottles preferably from a thermoplastic material or from another suitable one Plastic produced, which then capsules with the help of screw or by welding be closed, or in the form of bags or pillows, which also consist of a thermoplastic or other plastic and the after Filling can be closed by means of a weld seam. To the latter type of packaging to open, cut or tear a corner or one of the foregoing extensions provided for this purpose, whereupon in general. immediately the entire contents of the pack drain out.

On the other hand, a duck in such a sealed package held product can be taken in several, arbitrarily sized doses, is also known, the extension intended for removal or one of the corners of the packaging to be provided with a kind of nozzle that is closed by a screw cap like the closable spout or neck of a bottle. This solution has the disadvantage, however, that it is based on packaging made of flexible material, Especially in the form of bags and the like, difficult to use if there are liquids are contained in them. These have, after all, when the sink is opened by removing it of the screw cap tends to be under the pressure of the hand holding the package to exit immediately and in a non-meterable amount, so that the removal of a precisely dosed amount is not easily possible with such containers. Come in addition also that a detachable capsule can easily be lost.

The same disadvantages also occur if you use a screw cap instead of a screw cap a capsule, stopper or similar pushed onto the nozzle, Provides a fastener that adheres only by friction.

In addition, clamping locks are sometimes very simple Known executions that are exerted on the pack by the Open the pressure transferred from the inside of the package. At least in the case of liquids, even those with greater viscosity, however, this also applies an exact dosage is not possible because of the up to the opening of the closure The contents of the pack suddenly splash out in an uncontrolled manner due to increased pressure. If, on the other hand, the closing pressure of the closure is reduced, this is not perfect Sealing more guaranteed.

A known embodiment of such clamp fasteners has does not have these disadvantages, but is in their design and manufacture quite complex, especially due to several production stages.

The purpose and aim of the invention is to avoid all of these disadvantages and the creation of a closure device which closes the opening of a package made of supple material by clamping or pressing together in such a way that that the liquid or paste-like product contained in the packaging only as long as and as soon as can freely pass, as on the locking device even a print, preferably from two opposite sides, is exercised.

According to the invention, such a clamping device is characterized by " draws that it externally has the shape of a bracket, such as a bag, hat or letter clip, has both jaws of one not rigid, in itself elastic material, such as a thermoplastic or polymerized plastic, exist, which also occurs from the opening of two opposite one another Sides and compresses and the liquid contained in the package or pasty product releases the passage through the outlet opening, once on the locking device from two opposite sides pressure is exerted.

Such a closure device can be produced in one piece as a whole and consist of two clamping jaws provided with actuating plates or tabs, which are united by angled spacers acting as hinges. the However, the device can also be composed of two separate parts, from each of which contains at least one jaw and an actuator plate, the locking device can also be provided with a U-shaped flat spring, which from the side ago or in the clamp-like clamping device on or. is used. The middle part this U-shaped spring can have a preferably oval breakthrough, if the Spring in the clamp-shaped clamping device coaxial with their 1aLongitudinal axis is arranged.

The locking device can also be provided with a spiral spring be, which has two separate turns each in the shape of an eye, the are interconnected by a preferably curved central part, wherein these two separate turns on the two sides of the clamping device in such a way are arranged that the two clamping jaws are supported on them.

Each of the two separate parts forming the clamping device In addition to the clamping jaw and actuation plate, special fasteners can also be used included, which are used with the corresponding connecting means of the counterpart to form a hinge or a securing arrangement or both.

In addition, each of the two parts forming the clamping device be provided on both sides with a flap or approach, one of which one slot and the other has a pin or tenon, these tabs or approaches are arranged so that when assembling the device in each case Put one of the rag into the slot of the corresponding flap of the opposite part entered.

The inventive locking device is either mechanical Means or by welding, gluing or in some other suitable manner in such a way attached to the packaging that the one used to remove the contents of the packaging Neck or extension of the packaging or one of its corners between the clamping jaws the slamming device comes to rest. The packaging can then be in the form of an formed at both ends of a closed tube, a bag or a pillow be made, starting from a hose or a plastic film are, or as a small bottle or a flacon made of supple or elastic Plastic. The extension or a corner or the neck of a such a bag or such a bottle, which is either used during manufacture or after filling, for example by welding, is then closed with a closure device according to the invention provided in such a way that the Tip or the end of this part of the verb pack outwards from the locking device protrudes. This protruding end, which is towards the container through the locking clamp is completed, the pack is cut off or torn off when it is used. From this moment on, the locking clip is used to secure the packaging or the Open the container as desired to open the Content in precisely dosed To let the amount escape or to close it again. The invention For this purpose, the clamping device is designed in such a way that it is easy on the one hand between thumb and forefinger of the hand holding the packaging and that, on the other hand, the jaws of the locking device cover the entire width the extension or the corner or the neck of the packaging can compress.

In this embodiment, the neck or the extension or the Corner of the packaging, which is arranged between the jaws of the end device are, by welding, gluing or in some other suitable way fixed with at least one of the two jaws connected.

A particularly useful application of the inventive Closure device is provided in a package which is in the form of a pouch has, on its opposite side of the Versdhluss device with a Suspension device is provided.

In any case, one or the other version or

Application of the clamping device according to the invention a packaging, which remains tightly closed until the moment it is taken and which after Cutting off or tearing off the tip of the one provided for the opening corner or the appendix or the neck the product contained in the packaging only let out when you press on the clamping device and only as long as this Pressure is maintained; in this way there arises the possibility of the exiting To dose the product precisely and at will. Such packaging is also required even after the closed end of the outlet opening has been cut off or torn off provided extension neither a capsule nor a plug or any other Plug-in device to be closed again. The closure means can therefore never get lost.

On the basis of the attached drawings, several From embodiments of the subject invention are described as an example.

Here: Figures 1 to 4 show a clamping device made of thermoplastic Material placed on a tubular bag with one for the outlet opening certain fotsatz applied, Figure 5 is a special embodiment of the spring for a clamping device similar to the figure shown in Figures 1 to 4 6 a clamping device made of plastic with a spring according to FIG characters 7 to 9 show another embodiment for the clamping device according to FIG the principle shown in Figure 6, but with two separate clamping jaws, wherein Figures 8 and 9 cross sections corresponding to the dash-dotted lines M-N-P-Q, M-N-R and S-T in Figure 7 show Figure 10 is a perspective view of the spring for the clamping device according to FIGS. 7 to 9, FIGS. 11 to 14, the application a clamping device according to Figures 1 to 9 on the corner of a bag Figures 15 and 16 a particular reference to the use of clamping devices according to the invention adapted shape of a bag Figures 17 and 18 bottle-like packaging in a Figures 19 and 20 adapted to the clamping device according to the invention a 5-hose bag, the contents of which are already secured with a clamping device according to the invention provided opening is introduced characters 21 and 22 show the process when filling a bag according to FIGS. 19 and 20 in perspective The locking device shown in FIG. 1 has a shape that resembles a clip, resembles a paper clip.

It is preferably made of thermoplastic material and provided with a flat U-shaped bent steel spring 27, here the side is arranged. The two clamping jaws 21, 22 with the actuating tabs 23, 24 are connected to one another by angled connectors 25, 26, which at the same time serve as hinges. The entire clamp is already a single one during the pressing process uniform body created. The details of this clamp go from FIGS. 2 to 4.

The clamping jaws 21, 22 are designed so that the surfaces that against the protruding extension intended for extracting the content of the Bags, run parallel to each other when this appendage is between them is jammed. The U-shaped flat spring 27 is designed so that it Has endeavored to spread her thighs. It is inserted on the side so that the extended extension 28 of the bag 29 pass between the clamping jaws 21, 22 can. The hinges allow the jaws and jaws to rotate or tilt exist au each of the intermediate pieces forming an angle 25, 26, which are so formed. that the angle they form follows the The rear side, i.e., opens towards the actuating flap. Their cross-section is each smallest at the apex 30 or 30 'of the angle they form. Since the thermoplastic material is sufficiently flexible, these intermediate pieces 25, 26 kink under the pressure in the sense indicated by the arrows c, c1 (Fig. 4) the actuating flaps 23, 24 acting fingers at the point of your weakest Cross-section, i.e. at the apex of the angle, and thus take over the function of a hinge0 The bag 29 on which the clamping device sits> is with understand an elongated appendix 28, which, as already noted, between the Jaws 21 and 22 passes through. This pouch is either by gluing or by welding on the activation tabs 23, 24 and, if possible, also on the rear one Part of the adhesive jaws 21, 22 attached, for example to those designated by y in FIG Place. Furthermore, the extension 28 is in the same way on one of the two clamping jaws attached, for example on the surface y 'of the clamping jaw 29.

The spring 27 can, as far as it rests against the clamping jaws 21 22, in be embedded in the thermoplastic material. But it can also only after execution of the pressing process and open at the point intended for them lie. In the latter case it can be provided with small tips; which press lightly into the plastic material.

The tip 28 'of the extension serving to remove the contents of the bag it can be closed by welding. This Then cut off the tip. The process itself remains closed anyway because it the locking device clamps tightly together, except for the actuating tabs 23 24 in the sense indicated by the arrows c, c 'a pressure for example through Thumb and forefinger of the hand holding the bag, exerted The clamping device Then opens and the contents of the bag pass through the appendix; t8 off.

If you are left out for one reason or another, neither not to be arranged laterally but in the axial direction, it must be ensured that that the extension of the bag serving to remove the contents between the clamping jaws can pass through. In this case, for example, you can use a flat spring, whose width corresponds approximately to the width of the clamping jaws and also U-shaped is exhausted. The middle part of this spring is widened sufficiently to allow it Place an oval. To be able to present a hole through which the extension of the bag can pass can. Figures 5 and 6 show a Example of such a Embodiment. fn Figure 5, the U-shaped spring 31 is shown, the widened Part 32 contains the oval hole 33. The ends of the spring have tips 34, 34t provided in corresponding small recesses in the jaws of the clamping device intervention. Such a spring can then be inside the clamping device, in the in Figure 6 can be arranged.

The two clamping jaws shown in FIG. 6 are not of the same type educated. While the jaw 35 has a fairly large area on the the extension 28 of the bag 29 is attached, the clamping jaw 36 merely lies down with a kind of ledge 37 against the free side of the extension 28. In this way Sufficient pressure is achieved to ensure proper closure. Angled intermediate pieces serve as the hinge, one of which is shown in FIG 6 only the intermediate piece 26 'is visible. The angle of the intermediate pieces opens in this example after the front of the clamping device, while the intermediate pieces along the edges of the rectangular or trapezoidal actuator plates 38, 39 run out in reinforcement ribs.

Instead of producing such clamping devices in one piece, it goes without saying also possible to have them as two separate parts assemble whose each comprising a jaw and an actuating tab and at the same time still has those parts that serve, together with corresponding parts of the Counterpart a joint, for example, one consisting of an eyelet and pin or in any other suitable manner designed joint. as well it is possible to provide a purely metallic locking device, which is shown in in this case, for example, is provided with means for mechanical fastening on the packaging.

In Figure 7 is an example of one of two separate jaws assembled clamping device shown.

Figure 8 shows the same clamping device in section on the left a cross section along the dash-dotted, broken line M-N-P-Q and on the right the long cross-section of the straight line M-N-R according to Figure 7, in each case in the direction of the arrow seen.

FIG. 9 shows the cross section along the dash-dotted line S-T according to Figure 7, seen in the direction of the arrow. In addition, the has to assemble this Clamping device serving spring has a special design, which from Figure 10, in which shows the spring in perspective is apparent, The in Figure 7 shown clamping device consists of two separate clamping jaws 71, the both match in shape and are shell-shaped. The clamping device is provided with a spiral spring 72, which is shown in Figure 10 by itself and consists of two separate spiral windings 73, 73 ', each of which has a kind of eye and which are connected to one another by a central part 76. This middle part is bent so that the inside of the clamping device remains free, so that there the extension of the packaging used for removal can be accommodated. the The packaging itself and its extension are not shown in FIGS. 7 to 9.

The two spiral windings 73, 73 'are after the assembly of the clamping device arranged on the other two sides, where they form the clamping jaws for the two Bowls 7.1 Each serve as a support.

They are housed in the circular openings 77 that run through the semicircular, lateral recesses in each case in front of the shells 71 are formed and lie on both sides of the clamping device against the same semicircular protruding heels 78. That way they had the two Shell together.

The ends 74 and 74 'of the spring 72 are each approximately rectangular bent towards the longitudinal axis of the clamping device and lie in grooves 75, which are introduced into the outer surface of the front part 71 'of the clamping jaws 71, They press the two clamping jaws 71 against one another or, more precisely, against one another the two opposite sides of the carried out between the jaws Extension of the bag.

To open the clamping device, push through the two Arrows g, g 'on the actuating plates 79.

To prevent the clamping device from attaching to its back opens, for example by an accidental movement of the actuating tabs 79 in the opposite direction to the direction of movement indicated by the arrows g, g ' the two clamping jaws 71 still connected to one another by a kind of safety system * which consists of the tabs 81, 82 provided on the sides of each tray are. Of these lobes are the folders 81 each with an elongated through-going one Schitz 83 give away, which is guided around the axis of rotation of the clamping jaws accordingly arc is slightly curved. The tabs 82 are each -wils with a pin or Pin 84 provided. already in the slot when assembling the clamping device 83 of the respective corresponding tab 81 of the opposite shell engages.

Figures 11 to 14 show the use of a clamping device corresponding to Figures 1 to 10 in a trapezoidal bag, for example as packaging for a paste-like product, such as soft soap or floor wax, etc. is used. After the bag 41 is filled and sealed by welding is, the clamping device 42 is attached in such a way (Fig. 11) that the acute-angled Corner comes to lie between the clamping jaws and so the task of the removal serving extension takes over, the actuating tabs and one of the two clamping jaws are then firmly connected to the wall of the bag by gluing (Fig. 12), the tip 43t of the acute-angled corner 43 in front over the jaws of the clamping device 42 protrudes. Before use, the tip 43t is removed (FIG. 13). Of the Pouch can then be held in the cupped hand, using the thumb and forefinger the same hand in the manner indicated by the arrows d, d 'on the actuating tabs while the other fingers press one according to the arrows e, e ' Exercise the bag so that its contents emerge through the opening in the corner 43 (Fig. 14).

Another form of application of the closure device is shown in the figures 15 and 16 shown. This is a bag that is specially designed for the use as a container for a liquid, for example one in the household relaxant to be used, is determined. For this purpose he receives the Shape of an elongated rectangle 45, that turns down into a Triangle 46 continues, the free lower corner as an extension for the removal of the Liquid is used. On this corner is a clamping device 47 similar to the previous one already described attached by gluing or welding. The one opposite this corner The edge of the buten narrow side of the bag has an eyelet 48 to understand what the Bag, for example, but the sink table can be hung on the wall. Presses you now on the two actuation plates of the clamping device 47, so the Liquid from the downward dispensing opening and it is possible to to dose the amount of liquid withdrawn as required. Such a Bags can be used for packaging relaxation agents to be used in the home, liquid soaps and similar liquid products can be used.

Of course, you can also get such a clamp fastener operate to any liquid product in from more or less elastic Plastic-made bottles or flacons of any shape and variety To be able to fill the volume. Examples of different bottle-like containers of this type are shown in Figs. These bottles are each with a clamping device 47 according to one of the exemplary embodiments described above provided, with either a corner or the neck or a spout-shaped Aus guts 52 the bottle is passed between the jaws. The clamping device is attached to the bottle by welding or gluing. These containers are preferred completely closed after filling by a weld seam or weld point, to guarantee the authenticity of the product contained therein.

Instead of the clamping device only after filling and welding to attach the packaging to this, it is also possible to eu attach. In this case, there may even be a simplification when filling the container. Figures 19 to 22 present such a solution, but trapezoidal bag 61 is first made from a long, scarf-shaped bag by sweating Plastic structure produced, but with the acute-angled corner at 63 remains oven (Fig. 19). The clamping device 62 is then applied, namely such that the part containing the opening 63 is between the clamping jaws of the clamping device 62 passes through. The clamping device 62 is then on the wall of the bag attached by welding or gluing (Fig. 20). The dimensions can be like this be chosen that the end containing the opening 3 at the front over the clamping jaws the clamping device 62 advances.

To fill such a bag. becomes the filler neck 65 of the filling machine (Fig. 21) inserted through the opening 63 in the bag and then clamped by means of the clamping device 62, the exerted by the clamping device 62 Pressure keeps the bag in its position during the filling process (Fig. 22>. After completion of the filling process, the clamping device is opened so that it the filler neck 65 releases and the bag can be withdrawn, which through the clamping device is closed. If you wish, and the properties of the filled product allow it, you can now still through the opening 75 Shut off the welding for good.

Closure devices according to the invention can of course used for packaging any liquid or paste-like product regardless of whether they are relaxation agents or household products, to products for home care, liquid soaps or soft soaps, cosmetic Articles or foods such as condensed milk, honey, oils, fruit juices etc., acts.

Claims (15)

NEW PATENT CLAIMS 1. Closure device for made of elastic Material, preferably made of a plastic; Ef, manufactured packaging where the closure device either attached to the packaging or in one piece with it is connected, and which the outlet opening of the package by squeezing or Clamps closes, characterized in that they externally have the shape of a Clip, such as a laundry ", hat clip or letter clip, has both jaws made of a non-rigid, inherently elastic material, such as a thermoplastic or polymerized plastic, which also have the outlet opening of two includes opposing sides and compresses and the one in the Liquid or paste-like product contained in the packaging passes through the outlet opens as soon as the closure device of two each other pressure is exerted on opposite sides. 2. Closure device according to claim 1, characterized in that that it is made in one piece as a whole and of two plates with actuation jaws provided with or flaps, which -by acting as hinges, angled intermediate pieces are combined. 3. Closure device according to claim 1, characterized in that that it is composed of two separate parts, each of which at least includes a jaw and an actuator plate. 4. Closure device according to claim 1, characterized in that that it is provided with a U-shaped flat spring. 5. Closure device according to claim 4, characterized in that that the U-shaped flat spring from the side on or in the clamp-like clamping device is on or inserted. 6. Closure device according to claim 4, characterized in that that the middle part of the U-shaped spring has a preferably oval opening and that the spring in the clamp-shaped clamping device is coaxial with its longitudinal axis is arranged. 7. Closure device according to claim 1, characterized in that that it is provided with a spiral spring. 8. Closure device according to claim 7, characterized in that that the spiral spring has two separate turns each in the shape of an eye, the one below the other by a preferably curved Middle part connected, and that these two separate turns on the two sides the clamping device are arranged such that the two clamping jaws open support them. 9. Closure device according to claim 3, characterized in that each of the two separate parts forming the clamping device, except for the clamping jaw and actuator plate also contains special connecting means that are used to with the corresponding connecting means of the counterpart a joint or a Form a fuse arrangement or both. 10. Closure device according to claim 9, characterized in that that each of the two parts forming the clamping device on both sides with a flap or neck is provided> one of which has a slit and the other has a pin or tenon, and that these tabs or lugs eo arranged are that when assembling the device in each case the pin of one tab engages in the slot of the corresponding tab of the opposite part, 11. Closure device according to claim 1, characterized in that. They is attached to the packaging by mechanical means. 12. Closure device according to claim 1, characterized in that that they are on the packaging by welding, gluing or other suitable means Way is attached in such a way that the serving to remove the packaging contents Neck or extension of the packaging or one of its corners between the clamping jaws the clamping device comes to rest. 13. Closure device according to claim 11 or 12, characterized marked- * indicates that the neck or the extension or the corner of the packaging, which are arranged between the jaws of the clamping device, by welding, Glue or in some other suitable way firmly with at least one of the two clamping jaws are connected 14, VerschueElp device according to patent claim 1l or 12, thereby marked that the tip of the neck or extension of the packaging or its Corner, which lie between the jaws, is closed and over the front The end of the jaws protruding. 15. The use of a locking device according to the patent claim 1 adapted packaging, characterized in that it is in the form of a bag has, the opposite side of the closure device seisner one Hanging device possesses. Blank page