CN1575249A - Feeding cover of container for freeflowing material - Google Patents

Abstract

The invention relates to a dispenser closure (10) for a container that contains a flowable product, especially for a beverage container. Said dispenser closure comprises: a closing body (100) with a cover (120) from whose outer rim a jacket (110) extends downward that can be fastened via an opening of the container on the same, an outlet opening (126) in an upper face of the closing body (100), which communicates with the opening of the container, and a closure element (200) for opening or closing the outlet opening (126) of the closing body (100), and a dome-shaped raised section (124) of the closing body (100), which is disposed around the outlet opening (126) of the closing body (100). The closing body (100) is provided with a covering element (150) that covers at least partially an outer area of the dome-shaped raised section (124), the material of the covering element (150) being softer than the material of the dome-shaped raised section (124) and/or the cover (120) and/or the material of the closing body (100). The invention allows for an increased tightness of the dispenser closure and a pleasant feel when the user comes into direct contact with the dispenser closure.

Description

Feed caps for containers containing free-flowing substances

technical field

The present invention relates to a delivery cap for containers containing free-flowing substances, particularly beverage containers.

Background technique

Numerous designs of such feeder caps are known in the prior art for beverage containers made of various materials, especially glass and plastic.

Especially in recent years, this type of beverage container and delivery cap has been used for various purposes, and thus its demand has been increasing. For this kind of feeding cap, on the one hand, it is required to have reliable sealing even when the pressure inside the container is high, for example, when a beverage container is carried during exercise, high pressure will be generated inside it; on the other hand, it is hoped that it allows The user can freely take the material therein, especially drink the beverage therein freely, and the user's mouth is generally in direct contact with the feeding cap when drinking.

Contents of the invention

It is therefore an object of the present invention to provide an improved delivery cap for containers containing free-flowing substances, in particular for the aforementioned beverage containers, which, on the one hand, ensures an improved seal and, on the other hand, allows the user to There is a comfortable feeling when directly touching this feeding cap with the mouth.

This object of the present invention is to be achieved with a delivery cap for containers containing free-flowing substances, especially beverage containers. This feeding cap comprises: a cover body with a cover part, a tubular part extending downward from the outer edge of the cover part, and the tube part can be fastened on the container mouth part of the container; The outlet on the upper body, the outlet is connected to the container mouth of the container; and, a buckle cover for opening and closing the outlet of the cover body, the arched part of the cover body surrounds the outlet of the cover body, and the cover body is provided with A sheath at least partially covers the outer surface of the arched portion, the material of which is softer than the material of the arched portion and/or the material of the upper cover portion and/or the material of the cover body.

Such a delivery cap according to the invention provides the user with a very pleasant touch, for example during drinking, because the user touches the wrapper made of a softer material. Moreover, the sealing of this feed cover is greatly improved since the snap-off lid used to close the outlet closes the outlet by direct contact with the sheath, which is made of a softer material. Also, due to the high compressibility of the softer material, the sheath does not have to be too precisely dimensioned to achieve a reliable seal, and therefore does not have to place high demands on the accuracy of its manufacturing tolerances. If necessary, an anti-mis-opening device (tamperproofing means) in the form of a sealing piece can also be set for the outlet of the cover body. With this structure, it is impossible for air or oxygen to enter the interior of the container until the container is opened for the first time, which maintains the quality of the contents of the container. Such a tamper-evident closure can be of the same material as the wrapper and/or the lid. In addition, ensuring the high quality of the contents of the container in this way can greatly simplify the production process of such feeding caps and reduce the cost of mass production. Therefore, the present invention is based on the surprising discovery that providing an envelope of softer material can solve the above-mentioned problems, or can achieve the above-mentioned objects.

A further advantage of such a feed cover provided with a sheath of softer material is that it does not generate noise during its opening and closing, since its clasps, especially articulating clasps, open and close without breaking noise. In particular, it is an advantage if no noise is generated when opening and closing a container with such a container lid in an environment where silence is required, such as in a library or while a lecture is in progress.

Various thermoplastic polymers, especially thermoplastic polyester (TPE), high pressure polymers (low density polyethylene LDPE) are preferred materials for the sheath, but other soft plastics, rubber and/or silicone can also be used. These materials can be adjusted to the desired firmness of the sheath, yet the firmness formed is sufficiently stable to ensure the long service life of the sheath and thus the feed cap.

Of course, the sheath can also be made of a mixture of two or more of the above materials, which also falls within the scope of the present invention.

Preferably, the lid is integrally formed with a dome protruding upwards from the top edge of the lid and serving as a drinking tip for the drinker. Moreover, preferably, the diameter of the arched portion is stepped in its height direction, and the upper end of the arched portion has a smaller diameter and is provided with the outlet.

In a preferred embodiment, the wrapping is designed to substantially completely cover the outer surface of the arch, that is, suitably including said spout and/or its anti-mis-opening mouth piece ( tamperproof closure). This ensures that the entire area that the drinker's mouth will come into contact with is covered by the sheath, so that the drinker can fully enjoy a comfortable touch. Furthermore, this allows greater flexibility in the configuration of the snap-on lid, as the mating portion of the snap-on lid for sealing purposes can be snap-engaged at various locations on the wrapper to ensure the seal. For example, if the anti-mis-opening element is designed to have a tear-off tail that seals the outlet, the user, such as a cyclist, can open the beverage container by biting off the tear-off tail while riding. .

However, it is also possible for the covering to cover only a partial area of the dome, in particular its upper part. This structure, especially the dimensions of the arches, can be suitably modified by those skilled in the art to suit their needs.

In contrast, the sheath can not only cover the arch and, if desired, its outlet, but preferably also further covers a part of the cover.

In a preferred embodiment, the buckle cover is a cap that is integrally connected with the cover body by a joint and can be turned over. Therefore, the snap-on cap and the cap body form a single part which can be integrally injection-moulded with plastic, so that the snap-on cap is not easily lost after the delivery cap is fitted to the container.

Of course, a separate snap cover could also be used instead of the articulating snap cover. Moreover, within the scope of the present invention, various possible capping solutions can be conceived, for example, the buckle cap can be fastened to the cap body by a snap mechanism or a thread.

Description of drawings

Below in conjunction with accompanying drawing, illustrate the exemplary embodiment of feeding cover of the present invention, in each accompanying drawing:

Fig. 1 is the longitudinal central sectional view of feeding cover of the present invention in open state;

Fig. 2 has shown the second embodiment of feeding cap, and Fig. 1 is same, also represents with longitudinal central sectional view;

Fig. 3 shows the third embodiment of feeding cover, and its expression mode is identical with Fig. 1 and 2;

Fig. 4 shows the fourth embodiment of feeding cover, and its expression mode is identical with Fig. 1 to 3;

FIG. 5 is a perspective view of the feed cover of FIG. 4 .

Detailed ways

The feed cap 10 shown in FIG. 1 for a container containing free-flowing substances has a cap body 100 and a snap cap 200 as a cap. The cover body 100 and the buckle cover 200 are interconnected on one side with a joint 290 made integral therewith, so that the buckle cover 200 can be turned 180 degrees around the axis formed by the joint 290 from its open position shown in FIG. 1 to reach its buckle cover In the closed position on the cover 100 .

The upper part of the cover body 100 is an upper cover part 120 , and a tubular part 110 extends downward from the radially outer edge of the upper cover part 120 . The tubular portion 110 is generally cylindrical and has internal threads 112 by means of which the cap 100 can be screwed onto a container having a corresponding thread and thereby screwed into place.

It is also possible to replace the threaded connection between the cover body and the container with other structures, for example, a snap connection can be used, and the feeding cover and the container can also be integrally formed.

In the embodiment shown in FIG. 1, the upper portion of the tubular portion 110 of the cover 100 has a sealing lip 114 near the periphery of the upper cover portion 120 of the cover 100, which is annular and slightly downwards with respect to the horizontal plane. tilt. When the cap body 100 is screwed onto the container, the sealing lip 114 presses against the edge of the container mouth and seals it.

In the embodiment shown here, the sealing lip 114 is integrally formed with the cover body 100 and is made of a soft material such as silicone, as opposed to the hard plastic used for the cover body 100 and the clasp 200 . However, it should be noted here that in another embodiment, the sealing lip 114 and the cover body 100 are made of the same material, which simplifies the production process.

The upper cover part 120 of the cover body 100 has a substantially horizontal ring shoulder 122, and from the ring shoulder 122 radially inwardly symmetrical to the longitudinal center line is a stepped arched portion 124 protruding upwards, the diameter of which arched portion 124 is at its The height direction is stepped, and there is an exit 126 at the vault.

Arch portion 124 includes a first (or upper) rung 128 below which is a second (or lower) rung 134, both of which are generally cylindrical and of similar height, but the first rung Section 128 has a smaller diameter. The transition between the first stair section 128 and the second stair section 134 and the transition section between the second stair section 134 and the ring shoulder 122 are rounded so that there are no sharp edges. The upper end of the first step 128 is the terminating edge 136 of the outlet 126, which slopes radially inwardly and downwardly, while its top is substantially horizontal.

The interior of the arched portion 124 of the upper cover portion 120 is also stepped, and the inner diameter of the arched portion 124 gradually increases from the outlet 126 with the smallest diameter downward. After the first step of increasing the inner diameter just below the terminating edge 136, there is a substantially cylindrical inner surface extending over the entire axial length (heightwise) of the first step 128. Thereafter, the inner diameter further increases from approximately the transition between the first step 128 and the second step 134 .

The lower end of the first step 128 of the flexible pipe holding portion 180 is formed with an annular stop end surface 130 , while the end surface 130 defines an annular groove 132 in the upper portion of the second step 134 . Below the inner ring groove 132 , the second step section 134 is frusto-conical, and the bottom surface of the large end of the cone coincides with the lower surface of the ring shoulder 122 of the upper cover part 120 .

The buckle cover 200 is designed to be substantially cap-shaped, and it includes a top plate 210 and a side wall 220 extending from the top plate 210 . The size of the side wall 220 is designed such that the outer surface of its open end is substantially flush with the outer peripheral surface of the tubular portion 110 of the cover body 100 when the snap cover 200 is in the closed position.

In addition, on the side opposite to the knuckle 290, the clasp 200 has a groove 260 for receiving the closure member 160 (it is in the open position when the clasp 200 is in the open position shown in FIG. The upper end (while it is at the lower end when the cover 200 is in the closed position) is an inwardly concave groove, so that the locking member 160 can snap into it to ensure the fastening and sealing of the cover 200. A groove 260 for the closure 160 is defined on its upper and lower sides by lugs 262 and protrusions 264 .

The embodiment shown in FIG. 1 has a wrapping 150 made of thermoplastic polyester material (TPE), which covers the entire outer surface of the arch portion 124 of the upper cover portion 120 and conforms to the contour of the arch portion 124. .

The size of the cover 150, the size of the arched portion 124 and the size of the cylindrical fastening portion 280 arranged on the inside of the top plate 210 of the buckle cover 200 match each other very well, so that when the buckle cover 200 is fastened on the cover body 100 Without any noise, the fastening portion 280 can be fastened to the first step 128 of the arched portion 124 with the sheath 150 outside, and in this way closes the outlet 126, isolating it from the outside world.

In the embodiment shown in Fig. 1, at the height of the first step section 128, the outer diameter of the envelope 150 is slightly larger than the inner diameter of the cylindrical fastening portion 280 of the buckle cover 200 in its uncompressed state, so that The cover 150 is slightly compressed when the articulating snap-on lid 200 as a cap is snapped on, so that a press fit is created between the fastening portion 280 and the cover 150 so that in this position even the geometry of the associated parts Reliable seals can also be achieved with small manufacturing tolerances in dimensions and dimensions, which are unavoidable, at least to a small extent, and are required, in particular, in mass production or in the case of relatively high-cost production processes. Set manufacturing tolerances to facilitate compliance with more precise tolerance requirements.

Purely for the sake of completeness, it should be noted that the embodiment of the feeding cap shown in FIG. The tube is secured to the interior of the dome 124 with its outer end protruding beyond the outlet 126 to facilitate suction of free-flowing material within the container.

FIG. 2 shows another embodiment of the feed cap which is substantially the same as the embodiment shown in FIG. 1 .

However, the difference from the embodiment of FIG. 1 is that the wrapper 150 is designed to only enclose the upper part of the arch portion 124, that is, only the first step section 128 of the arch portion 124 and the first step section 128. and the transition portion between the second ladder section 134 . Also, in this embodiment, wrapper 150 is made of low density polyethylene (LDPE).

In the embodiment shown in FIG. 3 , the feed cover 10 is designed substantially the same as in the embodiment shown in FIG. 1 . However, the outlet 126 on the top surface of the cover 100 is provided with an anti-mis-opening seal 300 . This tamper-evident closure 300 forms an integral part of the delivery cap and is made of the relatively soft material from which the wrapper 150 is made for this purpose. The tamper-evident closure 300 sealing the outlet 126 is connected to the wrapper 150 by a weakened connection line along the edge of the outlet 126 of the arch 124 . It is desirable that the protruding tail 304 integrally formed with the anti-mis-opening closure 300 can be torn off. The container can be easily opened by tearing off the protruding tail 304, even when the container is not free to open the container, for example, in races such as racing cars, the container can be opened by biting off the protruding tail.

Therefore, the tamper-evident closure 300 ensures that the quality of the contents of the container is not adversely affected by air or oxygen until the container is opened for the first time. Also in this case, the wrapper 150 together with the tamper-evident closure 300 can be made of thermoplastic polyester (TPE) and/or low density polyethylene (LDPE) or rubber, silicone rubber and/or soft plastic or a mixture of these materials. to make.

The difference between the embodiment of the feeding cap 10 shown in Fig. 4 and the embodiment of Fig. 3 is only: its anti-mis-opening sealing member 400 is made of the material of the cap body 100, and is made of the material of the cap body 100 by injection molding process and the cap body 100 formed as one. This tamper evident closure 400 is exposed at the top and is connected to or integral with the lid 100 by a weakened connection line along the annular edge of the spout 126 . A protruding tail 404 that is the same as the protruding tail in FIG. 3 protrudes obliquely upwards from the top surface of the anti-mis-opening sealing member 400, and its material is the same as that of the cover body 100. This protruding tail 404 is also used to facilitate the opening of the feeding cover. The container, and the outlet 126 of the container is hermetically sealed by it, which can ensure that the quality of the substance in the container is not affected by the outside world until the container is opened for the first time. Preferably, the cover body 100 and the tear-off tab 404 are integrally made of polypropylene (PP) or polyethylene (PE) by injection molding.

Of course, if necessary, the anti-mis-opening closure 400 made of the material of the cover body 100 and its tear-off protruding tail 404 can also be additionally covered with the soft material of the wrapping 150 . This design with the tear-off tail is especially useful when the container with this delivery cap is used in situations where it cannot be opened by hand or is difficult to open by hand, for example in sports such as motorsports .

Figure 5 gives a general view of the feed cap shown in Figures 3 and 4. If the anti-mis-opening mouthpiece 300 and its tear-off protruding tail 304 in Fig. 5 are removed to expose the outlet 126 of the cover body 100, then Fig. 5 also shows the overall view of the feed cover shown in Figs. 1 and 2 .

List of corresponding labels and names

10 Feeding cover

100 cover body

110 Tubular part

112 thread

114 Sealing lip

120 Upper cover part

122 Ring Shoulder

124 arched part

126 exit

128 The first stair section

130 Ring stop face

132 ring groove

134 The second stair section

136 Termination edge

150 Bags

160 Locking parts

200 buckle cover

210 top plate

220 Lateral area

260 Groove

262 Lugs

264 protrusions

280 Fastening part

290 joints

300 Anti-mis-opening closures

302 weakened connection line

304 Detachable Spike Tail

400 Anti-mis-opening closures

402 Weakened Link

404 Detachable Spike Tail

Claims (16)

1. A feeding cap (10) made of plastic for containers of free-flowing substances, especially beverage containers, comprising: a lid body (100) having an upper lid portion (120), a tubular portion (110) extending downward from the outer edge of said upper lid portion, said tubular portion being fastened to the container mouth portion; an outlet (126) located on the top surface of said lid (100), said outlet communicating with the container mouth of the container; and a button cover (200), the button cover is used to open and close the outlet (126) of the cover body (100); an arched portion (124) of said lid (100), said arched portion surrounding said outlet (126) of said lid (100); It is characterized by: The cover (100) is equipped with a wrapping (150), which at least partially covers the outer surface of the arched portion (124), and the material of the wrapping (150) is smaller than the The material of the arched portion (124) and/or the material of the upper cover portion (120) and/or the material of the cover (100) is soft. 2. The feeding cover according to claim 1, characterized in that, the outlet (126) is provided with an anti-mis-opening opening (300, 400) on the top surface of the cover (100). 3. The feeding cap according to claim 2, characterized in that, the anti-mis-opening opening (300, 400) is an integral part of the feeding cap (10). 4. The feeding cap according to claims 1 to 3, characterized in that, the anti-mis-opening mouth piece (300) is made of the material of the wrapping (150), and is shaped as the wrapping (150) ) as an integral part of it. 5. The feeding cap according to claim 4, characterized in that, the anti-mis-opening closure (300) is connected to the wrapper (150) through a weakened connection line (302). 6. The feeding cap according to claims 1 to 3, characterized in that, the anti-mis-opening mouth piece (400) is made of the material of the cover (100), and is shaped as the cover (100) ) as an integral part of it. 7. The feeding cap according to claim 6, characterized in that, the anti-mis-opening closure (400) is connected to the cap body (100) through a weakened connection line (402). 8. The feeding cover according to claim 1 or any preceding claim, characterized in that, said wrapping (150) is made of thermoplastic polyester (TPE) and/or low density polyethylene (LDPE) or these materials The mixture is made. 9. The feed cap according to claim 1 or any one of the preceding claims, characterized in that the wrapping (150) is made of rubber, silicone and/or soft plastic or a mixture of these materials. 10. The feeding cover according to claim 1 or any preceding claim, characterized in that, the cover body (100) is made of polypropylene (PP) or polyethylene (PE). 11. The feeding cover according to claim 1 or any preceding claim, characterized in that, the upper cover part (120) of the cover body (100) comprises a radially outer ring shoulder (122 ) and a radially inward arch (124). 12. The feeding cover according to claim 1 or any preceding claim, characterized in that, the diameter of the arched portion (124) is stepped in the height direction, 13. Said arch (124) has said outlet (126) at its top end. 14. The feeding cover according to claim 1 or any one of the preceding claims, characterized in that, the wrapping (150) substantially completely covers the outer surface of the arched portion (124). 15. The feeding cover according to claim 1 or any one of the preceding claims, characterized in that, the wrapping (150) only covers the upper outer surface of the arched portion (124). 16. The feeding cover according to claim 1 or any one of the preceding claims, characterized in that, the button cover (200) is connected to the cover body (100) as a whole through a joint (290) and can be The articulating cap flips around the joint.

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