TWI700228B - Composite sealing cover with pull ring - Google Patents

Abstract

A composite sealing cap with a pull ring is a composite of a plastic outer cap and a metal inner cap. The plastic outer cap is a ring body with a pull ring on the top; the composite sealing cap is combined with a glass bottle by a capping machine For the bottle mouth, the metal inner cap is matched with a sealing gasket to tightly seal the bottle mouth, and the plastic outer cap is locked to the bottle mouth by the step difference between the first positioning part and the second positioning part.

Description

Composite sealing cover with pull ring

The present invention is related to the sealing cap of the glass bottle; the sealing cap of the present invention is a composite of a plastic outer cap and a metal inner cap, with a pull ring on the plastic outer cap.

Figures 1 and 2 illustrate the sealing cap 2 of the conventional glass bottle. The sealing cap 2 is an aluminum cap and is sealed and pressed onto the glass bottle mouth 1 by a capping machine. The sealing cap 2 includes a cap body 3 and a roll cover 4, the cover body 3 covers the bottle mouth 1, and the roll cover 4 is tightly rolled and fixed on the side of the bottle mouth. In order to achieve the sealing effect, the inner circumference of the cap body 3 also includes an elastic sealing ring 5, which is sealed on the top edge and the outer corner of the bottle mouth. Two pre-cutting lines 6 are arranged on the curling edge 4 at a predetermined interval and respectively extend annularly toward the outer periphery of the cover body 3. The curled edge between the two pre-cut lines 6 is further integrated with a pull ring 7. In the state where the sealing cap 2 is sealed with the bottle mouth, the pull ring 7 is vertically leaned against the outside of the glass bottle.

Figure 2 reveals how to open the sealing cover 2. Pull up the pull ring 7 to separate the curling edge 4 and the cap body 3 along the two pre-cut lines 6, and then the sealing cap 2 can be removed from the bottle mouth.

The problems to be improved for the conventional sealing cover in Figure 1 and Figure 2 are as follows:

One is that the opened sealing cover forms a sharp edge along the pre-cut line, which can easily hurt the user. Second, when the lid body is sealed on the bottle mouth, no vacuum identification is provided, and consumers cannot judge whether the glass bottle is in a vacuum preservation state by visually inspecting the lid body. The third is that it is laborious to open the lid, and the user must use greater force to tear the pull ring and the lid body along the pre-cut line. Fourth, when mechanically capping, the pull ring extending downward easily affects the capping procedure. Fifth, it is attached to the outside of the glass bottle when packaging and sealing film The pull ring makes it difficult to dispense the packaging film, and the packaging film is extremely uneven due to the pull ring.

The present invention proposes a composite sealing cover with a pull ring. The specific technology is: a plastic outer cover including an inner ring edge defining a circular hole, a ring shoulder connecting the inner ring edge, and a ring connected to the ring shoulder Side; a pull ring is located in the circular hole, the pull ring is connected to the inner ring edge through a non-breaking connecting portion; the inner wall surface of the ring side is convexly provided with at least two first positioning portions and at least one second positioning A metal inner cover, a stamping and forming structure, including a top, a side and a shoulder between the top and the side; the central area of the top is formed with a vacuum identification button that can float up and down; the The inner side of the metal inner cover continues from the outer circumference of the top to the shoulder and the upper section of the side combined with a ring-shaped sealing gasket made of TPE (Thermoplastic Elastomer) material; The metal inner cover is conformally combined with the inside of the plastic outer cover, the vacuum identification button is exposed at the center of the circular hole of the plastic outer cover, and the first and second positioning portions are located in the inner rolling pressure of the metal inner cover Under the side; the composite sealing cap is combined with the mouth of the glass bottle, the sealing gasket and the metal inner cap are tightly sealed with the mouth, the leak-proof ring of the sealing gasket tightly fits the inner wall of the mouth, the The first positioning part and the second positioning part are locked at the level difference.

The advantages of the compound sealing cover with pull ring of the present invention are:

There is no sealing edge at all to ensure safe use.

The pull ring is arranged on the top of the plastic outer cover. The entire composite sealing cap has a flat outer contour. The pull ring will not affect the mechanical sealing action. The packaging sealing film is easy to dispense and tends to be flat on the bottle cap.

The first positioning portion and the second positioning portion have the following functions: one is to keep the metal inner cap in the plastic outer cap, the other is to position the composite sealing cap on the mouth of the glass bottle, and the third is to open When opening the bottle cap, pull the metal inner cap away from the mouth of the glass bottle.

The coordinated action of the pull ring, the first positioning portion, and the second positioning portion produces a lever-like effect when the composite sealing cover is opened. Compared with the prior art, the present invention uses the pull ring to open the composite sealing cover. Less effort.

The sealing gasket of the metal inner cover is TPE (Thermoplastic Elastomer), which complies with environmental protection and food safety regulations.

The removed composite sealing cover has no glued relationship between the metal inner cover and the plastic outer cover, so the metal inner cover can be separated from the plastic outer cover in the direction passing through the first positioning part and the second positioning part. Recycle.

The open end of the inner pressure crimping edge of the metal inner cover is covered by the side edge of the sealing gasket, so as to avoid oxidation in this place and affecting food safety.

Consumers can judge whether the glass bottle is in a vacuum preservation state by visually viewing the vacuum identification button.

<Prior Art>

1‧‧‧Glass bottle mouth

2‧‧‧Sealing cover

3‧‧‧Cover body

4‧‧‧Curled edge

5‧‧‧Elastic sealing ring

6‧‧‧Pre-cutting line

7‧‧‧Pull Ring

<The present invention>

10‧‧‧Plastic cover

11‧‧‧Circular hole

12‧‧‧Inner ring

13‧‧‧Bevel

14‧‧‧Shoulder

15‧‧‧Ring side

16‧‧‧Refers to the depression

20‧‧‧Metal inner cover

21‧‧‧Top

22‧‧‧Side

23‧‧‧Shoulder

24‧‧‧Vacuum identification button

25‧‧‧Sealing gasket

252‧‧‧stop ring

26‧‧‧Internal pressure crimping

30‧‧‧Pull Ring

31‧‧‧Unbreakable connection

41‧‧‧First positioning part

411‧‧‧First end

412‧‧‧Second end

42‧‧‧Second positioning part

421‧‧‧First end

422‧‧‧Second end

51‧‧‧Bottle mouth

52‧‧‧Step difference

L1‧‧‧Virtual Diameter Line

θ 1‧‧‧Central angle

θ 2‧‧‧Central angle

θ 3‧‧‧Central angle

Figure 1 is an external view of a conventional pull ring sealing cap sealed on the mouth of a glass bottle.

Figure 2 is a schematic diagram of the action of the conventional pull ring sealing cap being opened from the mouth of the glass bottle.

Figure 3 is a three-dimensional exploded view of the composite sealing cap with pull ring and the glass bottle of the present invention.

Figure 4 is an external view of the composite sealing cap with a pull ring closed on the mouth of the glass bottle of the present invention.

Figure 5 is a top view of the plastic outer cover of the present invention.

Figure 6 is a bottom view of the appearance of the plastic of the present invention.

Figure 7 is one of the cross-sectional views of the composite sealing cover with pull ring of the present invention.

Figure 8 is the second cross-sectional view of the composite sealing cover with pull ring of the present invention.

Figure 9 is a combined cross-sectional view of the composite sealing cap with pull ring and the glass bottle mouth of the present invention.

Figure 10 is one of the schematic diagrams of the opening action of the composite sealing cap with pull ring of the present invention.

Figure 11 is the second schematic diagram of the opening action of the composite sealing cap with pull ring of the present invention.

Figure 12 is the third schematic diagram of the opening action of the composite sealing cap with pull ring of the present invention.

The following describes the present invention in conjunction with the drawings and embodiments.

As shown in Figures 3 and 4, the composite sealing cap with pull ring of the present invention is combined with the mouth 51 of a glass bottle by a capping machine. From the appearance, the composite sealing cover with pull ring of the present invention is a composite body of a plastic outer cover 10 and a metal inner cover 20. The plastic outer cover 10 is a ring body with a pull ring 30 on it. The shape of the glass bottle and the bottle mouth 51 is conventional, and a step 52 is formed between the bottle mouth 51 and the outer wall of the glass bottle.

As shown in Figures 5 to 8, the plastic outer cover 10 includes an inner ring edge 12 defining a circular hole 11, a ring shoulder 14 connected to the inner ring edge 12, and a ring connected to the ring shoulder 14 and in a vertical direction. Side 15.

The pull ring 30 is formed in the circular hole 11 defined by the inner ring edge 12. The inner ring edge 12 includes a beveled surface 13 with an upward bevel, and the pull ring 30 is located on the beveled surface 13 so that the pull ring 30 does not protrude from the plastic outer cover 10. The pull ring 30 is connected to the inner ring edge 12 by a non-breaking connecting portion 31. The ring shoulder 14 is provided with a finger recess 16 through which a user's finger can contact the pull ring 30. A virtual diameter line L1 passing through the diameter of the plastic outer cover 10 will pass through the center point of the finger recessed portion 16 and the non-breaking connecting portion 31.

The inner wall surface of the ring side 15 is convexly provided with at least two first positioning portions 41 and at least one second positioning portion 42. The first positioning portion 41 and the second positioning portion 42 are defined by a virtual diameter line L1 s position. The virtual diameter line L1 passes through the diameter of the plastic outer cover 10 and the center point of the unbreakable connecting portion 31. The center point of the second positioning portion 42 is located at one end of the virtual diameter line L1, and the two first positioning portions 41 are respectively located at the mirror positions on both sides of the other end of the virtual diameter line L1.

The first positioning portion 41 includes a first end 411 and a second end 412. The central angle θ1 formed by the first end 411 and the virtual diameter line L1 is 40 degrees to 50 degrees, preferably 45 degrees; The central angle θ2 formed by the second end 412 and the virtual diameter line L1 is 60-70 degrees, preferably 65 degrees. The second positioning portion 42 also includes a first end 421 and a second end 422. The central angle θ3 formed by the first end 421 and the second end 422 is 110-130 degrees, preferably 120 degrees.

The metal inner cover 20 is a stamped and formed structure, and includes a top portion 21, a side portion 22 and a shoulder portion 23 between the top portion 21 and the side portion 22. The central area of the top 21 is formed with a vacuum identification button 24 that can float up and down. The inner side of the metal inner cover 20 continues from the outer circumference of the top 21 to the shoulder 23 and the upper section of the side 22 is combined with an annular sealing gasket 25. The lower section of the side 22 is rolled inward to form an inner The crimping edge 26 is pressed, and the open end of the inner crimping edge 26 is covered by the side edge of the sealing gasket 25. A non-leak ring 252 is formed from the inner edge of the sealing gasket 25 downwardly. The sealing gasket 25 is made of TPE (Thermoplastic Elastomer) material.

The metal inner cover 20 is conformally combined with the inside of the plastic outer cover 10, the vacuum identification button 24 is exposed at the center of the circular hole 11 of the plastic outer cover 10, the first positioning portion 41 and the second positioning portion 42 It is located under the inner crimping edge 26 of the inner metal cover 20 and blocks the inner metal cover 20 so as not to leave the plastic outer cover 10.

As shown in Figure 9, the composite sealing cap with pull ring is connected to the mouth 51 of the glass bottle by a capping machine. The sealing gasket 25 is tightly fitted to the top surface and outer corner of the mouth 51. The sealing gasket 25 is leak-proof The ring 252 closely fits the inner wall of the bottle mouth 51, and the first positioning portion 41 and the second positioning portion 42 are locked on the glass The step difference of the bottle is 52. The glass bottle causes a vacuum in the glass bottle due to the temperature from heating to cooling. The strong internal suction force makes the metal inner cap 20 tightly and seamlessly seal the bottle mouth 51 with a sealing ring, and the vacuum identification button 24 falls downward.

Figures 10 to 12 reveal the way to open the compound sealing cover with pull ring. First, the user lifts the pull ring 30 upward through the finger recess 16 between the fingers of the finger, so that the pull ring 30 can cover the tip of a finger. Next, a pulling force is applied to the pull ring 30 over the finger recess 16, the pull ring 30 applies the pulling force to the plastic outer cover 10 through the non-breaking connecting portion 31, and the plastic outer cover 10 uses a second positioning portion 42 The positional relationship with the level difference 52 is used as the fulcrum of the composite sealing cap with pull ring. The sealing cap moves the part of the plastic outer cap 10 under tension upward and away from the bottle mouth 51 according to the principle of leverage. The first positioning The portion 41 is separated from the step 52, and at the same time, the first positioning portion 41 pulls the metal inner cap 20 upward to make it separate from the bottle mouth 51 and release the vacuum state in the bottle. Then, continue to pull the pull ring 30 so that the second positioning portion 42 is also separated from the step 52, and the entire composite sealing cap with the pull ring can be separated from the bottle mouth 51. By the blocking of the first positioning portion 41 and the second positioning portion 42, the metal inner cover 20 is held in the plastic outer cover 10.

10‧‧‧Plastic cover

13‧‧‧Bevel

14‧‧‧Shoulder

15‧‧‧Ring side

16‧‧‧Refers to the depression

20‧‧‧Metal inner cover

24‧‧‧Vacuum identification button

30‧‧‧Pull Ring

31‧‧‧Unbreakable connection

51‧‧‧Bottle mouth

52‧‧‧Step difference

Claims (10)

A composite sealing cap with a pull ring, which is combined with the mouth of a glass bottle by a capping machine; the mouth and the outer wall of the glass bottle have a first step difference; the composite sealing cap with a pull ring The cover includes a plastic outer cover and a metal inner cover combined with the inside of the plastic outer cover: it is characterized by: The plastic outer cover includes an inner ring edge defining a circular hole, a ring shoulder connected to the inner ring edge, and a ring side connected to the ring shoulder; a pull ring is located in the circular hole, and the pull ring passes through a ring The non-breaking connecting portion is connected to the inner ring edge; the inner wall surface of the ring side is convexly provided with at least two first positioning portions and at least one second positioning portion; through the diameter of the plastic outer cover and the center point of the non-breaking connecting portion A virtual diameter line is defined, the center point of the second positioning part is located at one end of the virtual diameter line, the two first positioning parts are respectively located at the mirror positions on both sides of the other end of the virtual diameter line; the first positioning part and the The second positioning parts are all located under the metal inner cover; After the composite sealing cap with pull ring is combined with the bottle mouth, the metal inner cap seals the bottle mouth, and the first positioning part and the second positioning part are locked in the step. The composite sealing cover with a pull ring according to claim 1, wherein the inner ring edge includes a beveled surface with an upward bevel, and the pull ring is located on the beveled surface. According to claim 2, the compound sealing cover with a pull ring, wherein the ring shoulder is provided with a finger recess. The compound sealing cap with pull ring according to claim 1, wherein the first positioning portion includes a first end and a second end, and the central angle formed by the first end and the virtual diameter line is 40 degrees to 50 degrees; the central angle formed by the second end and the virtual diameter line is 60-70 degrees. The compound sealing cap with pull ring according to claim 4, wherein the central angle formed by the first end and the virtual diameter line is 45 degrees; the central angle formed by the second end and the virtual diameter line is 65 degrees degree. The composite sealing cap with pull ring according to claim 1, wherein the second positioning portion includes a first end and a second end, and the central angle formed by the first end and the second end is 110-130 degree. The composite sealing cap with pull ring according to claim 6, wherein the central angle is 120 degrees. The composite sealing cover with pull ring according to claim 1, wherein the metal inner cover includes a top, one side, and a shoulder between the top and the side; the central area of the top is formed with a A vacuum identification button that can float up and down, the vacuum identification button corresponds to the circular hole of the plastic outer cover; the inner side of the metal inner cover continues from the outer circumference of the top to the shoulder and the upper part of the side combined with a ring Sealing gasket, the inner peripheral edge of the sealing gasket is formed downward to protrude a leak-proof ring. According to claim 8 of the composite sealing cover with a pull ring, the sealing gasket is made of TPE (Thermoplastic Elastomer) material. The composite sealing cap with pull ring according to claim 9, wherein the lower section of the side portion of the metal inner cap is rolled inward to form an internal pressure crimp, and the open end of the internal pressure crimp is covered by the sealing gasket The side edges are wrapped.

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