Cap of spout

Abstract

The present invention provides a spout cap that is fastened to a spout sealedly coupled to a pouch. The spout cap comprises: a cap body having a cap body thread on its inner surface that screws into a spout thread formed on the outer surface of the spout, and is configured to open and close an opening formed in the spout for discharging contents within the pouch; a ring-shaped band that is positioned at the spout neck below the spout thread when the cap body closes the opening through the screw coupling, and rotates freely in the circumferential direction at the spout neck without falling upward from the spout neck when the screw coupling is released; and a connection retaining band that is configured to extend along the circumferential direction between two ends, having a cap body connecting end connected to the cap body and a band connecting end connected to the band, and maintains the connection between the cap body and the band even if the cap body is separated from the spout. and includes a plurality of bridges arranged to connect the connection retaining band, the cap body, and the band, and arranged to be severed by the upward movement of the cap body when the screw connection is released.

Description

Technology Field

[0001] The present invention relates to a cap for a spout for opening and closing a spout sealed to a pouch, and more specifically, to a cap for a spout having a structure capable of verifying unauthorized use and a structure capable of maintaining the connection between a ring-shaped band and a cap body even when the bridges are broken. Background Technology

[0002] A container is known in which a spout is sealed and coupled to a pouch, and the spout is then sealed with a cap. Such containers are sold to consumers containing contents such as beverages, cosmetics, hair dye, and detergents, and consumers use the product by opening the cap and dispensing the contents from the pouch through the spout.

[0003] The above-described cap may also have a structure that allows for verification of misuse. Typically, such a cap is provided in a form in which a ring-shaped band, a cap body, and multiple bridges arranged along the circumference to connect the upper part of the band and the lower part of the cap body are integrated. When the cap is fastened to the spout and the spout is sealed, the threads provided on the inner surface of the cap body and the threads provided on the outer surface of the spout engage in a screw connection, and the band rests on the neck located below the upper threads of the spout. When the user wishes to use the contents of the pouch, they rotate the cap body to open the spout; at this time, the band does not rotate on the neck, but only the cap body rotates, causing the bridges to break. Subsequently, as the cap body continues to rotate, the band remains seated on the neck, while the cap body is completely separated from the spout. By confirming that the bridges are broken after purchasing a new product, the user can verify whether the newly purchased product has already been used—that is, whether there has been misuse. An example of such a cap is disclosed in Registered Patent Publication No. 10-0951526 (Spout Cap Coupling Structure).

[0004] Meanwhile, if the cap body is completely separated from the spout as described above, there is the inconvenience of having to hold the cap body in one's hand or place it in a designated location while using the contents of the pouch. Additionally, an accident may occur where an infant puts the cap body placed in a designated location into their mouth or swallows it. Therefore, a cap capable of verifying misuse is provided to maintain a connection between the band and the cap body even when the bridges are broken. An example of such a cap is disclosed in Registered Patent Publication No. 10-1937657 (Cap assembly for a spout). Prior art literature

[0005] Registered Patent Publication No. 10-0951526 (Spout cap coupling structure) Registered Patent Publication No. 10-1937657 (Spout cap assembly) The problem to be solved

[0006] The present invention aims to provide a spout cap with a newly improved structure capable of verifying unauthorized use and maintaining the connection between the ring-shaped band and the cap body even when the bridges are broken. means of solving the problem

[0007] The present invention provides a spout cap that is fastened to a spout sealedly coupled to a pouch. The spout cap comprises: a cap body having a cap body thread on its inner surface that screws into a spout thread formed on the outer surface of the spout, and is configured to open and close an opening formed in the spout for discharging contents within the pouch; a ring-shaped band that is positioned at the spout neck below the spout thread when the cap body closes the opening through the screw coupling, and rotates freely in the circumferential direction at the spout neck without falling upward from the spout neck when the screw coupling is released; and a connection retaining band that is configured to extend along the circumferential direction between two ends, having a cap body connecting end connected to the cap body and a band connecting end connected to the band, and maintains the connection between the cap body and the band even if the cap body is separated from the spout. and includes a plurality of bridges arranged to connect the connection retaining band, the cap body, and the band, and arranged to be severed by the upward movement of the cap body when the screw connection is released.

[0008] The above-mentioned connection retaining band is located only in a portion of the entire circumferential section between the bottom of the cap body and the top of the band, and is provided with a length that allows the cap body to be separated from the spout.

[0009] The plurality of bridges includes: a first bridge connecting the upper end of the connection retaining band and the lower end of the cap body; a second bridge connecting the lower end of the connection retaining band and the upper end of the band; and a third bridge connecting the lower end of the cap body and the upper end of the band in a section where the connection retaining band is not present.

[0010] A ring-shaped first step protruding outward is provided on the outer surface of the spout located between the spout screw thread and the spout neck, and a plurality of first protrusions protruding inward are provided on the inner surface of the band so as to be arranged along the circumferential direction. In this case, the first step and the plurality of first protrusions are provided such that the plurality of first protrusions allow the plurality of first protrusions to move downward over the first step but do not allow them to move upward. Furthermore, the outer surface of the spout neck is provided smoothly so as not to hinder the circumferential rotation of the plurality of first protrusions.

[0011] When the aforementioned connecting retaining band is located only in a portion of the entire circumferential section between the bottom of the cap body and the top of the band, a plurality of second protrusions protruding inward are arranged along the circumferential direction on the inner surface of the connecting retaining band, and in the section where the connecting retaining band is not present, a plurality of third protrusions protruding inward are arranged along the circumferential direction on the inner surface of the cap body. Furthermore, the second and third protrusions come into contact with the upper surface of the first step when the cap body closes the opening through the screw connection.

[0012] A ring-shaped second step is provided on the outer surface of the spout located between the spout thread and the first step, protruding outward with an outer diameter smaller than that of the first step, and a ring-shaped third step is provided on the inner surface of the cap body, protruding inward from the lower part of the cap body thread. The third step contacts the upper surface of the second step when the cap body closes the opening through the screw connection. Additionally, the outer diameter of the second step is formed so that the first protrusions, which move downward during the screw connection, do not get caught. Effects of the invention

[0013] According to the present invention, when separating the cap body from the spout, the problem of the connecting strap twisting and breaking does not occur, and the connecting strap can be provided with a short length.

[0014] In addition, according to the present invention, when the cap body is separated from the spout, it is reversed with a strong force capable of breaking the bridges only about 1 to 2 times, and thereafter, it can be reversed very easily with a weak force. Brief explanation of the drawing

[0015] FIG. 1 is a perspective view illustrating a state in which a cap for a spout according to the present invention is fastened to a spout. Figure 2 is a longitudinal section of Figure 1. Figure 3 is a front view of the spout shown in Figure 1. Figure 4 is a front view of the cap for the spout shown in Figure 1. Fig. 5 is a rear view of the cap for the spout shown in Fig. 1. FIG. 6 is a bottom perspective view of the cap for the spout shown in FIG. 1. Specific details for implementing the invention

[0016] Hereinafter, preferred embodiments of a spout cap according to the present invention will be described in detail with reference to the drawings. Terms and words used below should not be interpreted as being limited to their ordinary or dictionary meanings, and should be interpreted in a meaning and concept consistent with the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention.

[0017] The cap (100) for a spout according to the present invention is intended to be fastened to a spout (200) that is sealed and coupled to a pouch (not shown).

[0018] The above pouch (not shown) can contain contents such as beverages, cosmetics, hair dye, and detergent, and the contents inside the pouch can be discharged to the outside through an opening (202) provided at the top of the spout (200). As shown in FIG. 3, the spout (200) is provided with a spout thread (204) on the outer surface of the upper portion, and a ring-shaped second step (230) protruding outward from the lower part of the spout thread (204) is also provided on the outer surface, and a ring-shaped first step (220) protruding outward from the lower part of the second step (230) is also provided on the outer surface. A spout neck (210) with an outer diameter smaller than the outer diameter of the second step (230) is located at the lower part of the second step (230). The outer diameter of the second step (230) is formed to be smaller than the outer diameter of the first step (220).

[0019] The above cap (100) includes a cap body (110), a ring-shaped band (130), a connecting retaining band (150), and a plurality of bridges (172, 174, 176).

[0020] As shown in FIG. 2, the inner surface of the cap body (110) is provided with a cap body thread (112) that is screw-coupled with the spout thread (204). When the cap body (110) is rotated in the forward direction while the cap (100) is fitted onto the spout (200), the screw coupling is formed. During this process, the cap body (110) rotating in the forward direction descends, and the screw coupling is completed when this descent can no longer occur. When the screw coupling is completed, the opening (202) of the spout (200) is closed by the cap body (110) as shown in FIG. 2. Then, when the cap body (110) is rotated in the reverse direction while the screw coupling is completed, the screw coupling is released and the cap body (110) rises, and when the screw coupling is completely released, the cap body (110) can be separated from the spout (200). The user uses the contents of the pouch by discharging them through the opening (202) while the cap body (110) is separated from the spout (200).

[0021] The ring-shaped band (130) is connected to the cap body (110) and is located at the bottom of the cap body (110). Therefore, when the cap body (110) descends while rotating in the forward direction, the band (130) also rotates and descends in the forward direction together with the cap body (110).

[0022] As shown in FIG. 6, first protrusions (132) protruding inward are arranged along the circumferential direction on the inner surface of the band (130). During the descent of the band (130), the first protrusions (132) do not get caught on the second step (230) of the spout (200) but only on the first step (220). While the cap body (110) continues to rotate forward to complete the screw connection in this state, the first protrusions (132) descend past the first step (220) to the periphery of the spout neck (210), thereby positioning the band (130) on the spout neck (210). Meanwhile, in order for the first protrusions (132) to easily pass over the first step (220), the upper surface of the first step (220) is configured as an inclined surface with a diameter that gradually increases as it goes downward, as shown in FIG. 3.

[0023] When the cap body (110) is rotated in the reverse direction while the screw connection is complete, the screw connection is released as described above and the cap body (110) rises; however, since the first protrusions (132) catch on the lower surface of the first step (220), they cannot rise beyond the first step (220). Therefore, when the screw connection is released, the cap body (110) rises, but the band (130) does not come off the spout neck (210) upward. Meanwhile, to prevent the first protrusions (132) from rising beyond the first step (220), the lower surface of the first step (220) is configured as a horizontal plane as shown in FIG. 3.

[0024] Additionally, when the cap body (110) is rotated in the reverse direction to release the screw connection, the band (130) connected to the cap body (110) also rotates freely in the reverse direction while remaining on the spout neck (210). For this free rotation, the outer surface of the spout neck (210) is made smooth so as not to hinder the circumferential rotation of the first protrusions (132), as shown in FIG. 3.

[0025] The above-mentioned connecting band (150) has two ends, one of which is a cap body connecting end (152) connected to the cap body (110) as shown in FIG. 4, and the other end is a band connecting end (154) connected to the band (130) as shown in FIG. 5. The connecting band (150) extends along the circumferential direction between the two ends (152, 154). Due to this connecting band (150), the cap body (110) remains connected to the band (130) remaining on the spout neck (210) even if it is completely separated from the spout (200).

[0026] The above-mentioned connecting retaining band (150) may be located in only a portion of the entire circumferential section (a section of 360 degrees) located between the bottom of the cap body (110) and the top of the band (130), and the length of the connecting retaining band (150) must be sufficient to allow the cap body (110) to be separated from the spout (200). The drawings show an example in which such a connecting retaining band (150) is located in only a section of 180 degrees of the entire circumferential section of 360 degrees.

[0027] The above bridges (172, 174, 176) are provided to connect the connection maintenance band (150), the cap body (110), and the band (130) for verification of unauthorized use, and may include first bridges (172), second bridges (174), and third bridges (176) as shown in FIGS. 4 and 5.

[0028] The first bridges (172) are arranged in a circumferential direction and connect the upper part of the connecting retaining band (150) and the lower part of the cap body (110). The second bridges (174) are arranged in a circumferential direction and connect the lower part of the connecting retaining band (150) and the upper part of the band (130). As previously described, the connecting retaining band (150) may be located only in a portion of the entire circumferential section (a section of 360 degrees) located between the lower part of the cap body (110) and the upper part of the band (130). In this case, there is a section within the entire circumferential section where the connecting retaining band (150) is not present. And if such a section where the connecting retaining band (150) is not present exists, the third bridges (176) arranged in a circumferential direction in the section where the connecting retaining band (150) is not present connect the lower part of the cap body (110) and the upper part of the band (130).

[0029] In order for the screw connection between the cap body (110) and the spout (200) to be released, the cap body (110) must be rotated in the reverse direction, at which time the connecting retaining band (150) and the band (130) also rotate freely in the reverse direction together with the cap body (110). Therefore, the bridges (172, 174, 176) are not broken by the reverse rotation of the cap body (110). However, the cap body (110) rotating in the reverse direction also rises, and at this time, the cap body connecting end (152) of the connecting retaining band (150) rises while being pulled by the cap body (110), whereas the band connecting end (154) of the connecting retaining band (150) cannot rise, so the bridges (172, 174, 176) are all broken by the rise of the cap body (110) that occurs while the screw connection is released.

[0030] Meanwhile, as illustrated in FIG. 6, a plurality of second protrusions (156) protruding inwardly are arranged along the circumferential direction on the inner surface of the connecting retaining band (150), and in the section where the connecting retaining band (150) is not present, a plurality of third protrusions (116) protruding inwardly are arranged along the circumferential direction on the inner surface of the cap body (110). Additionally, a ring-shaped third step (114) protruding inwardly from the lower part of the cap body screw thread (112), more specifically from the upper part of the third protrusion (116), is provided on the inner surface of the cap body (110).

[0031] While screw coupling is being performed between the cap body (110) and the spout (200), the second protrusions (156) and the third protrusions (116) descend without catching on the second step (230) of the spout (200) and come into contact with the upper surface of the first step (220) of the spout (200), at which point the screw coupling is completed. And when the screw coupling is completed, the third step (114) comes into contact with the upper surface of the second step (230) as shown in FIG. 2.

[0032] The process of fastening and using the above-mentioned spout cap (100) is described below.

[0033] When the contents are filled into the pouch (not shown) to which the spout (200) is sealed, the cap (100) is attached to the spout (200). At this time, after the cap (100) is fitted into the spout (200), the cap body (110) rotates in the forward direction. During the forward rotation of the cap body (110), the entire cap (100) descends while rotating in the forward direction due to the screw connection between the cap body threads (112) and the spout threads (204). The above screw connection is completed when the forward rotation and downward movement of the cap (100) can no longer be performed, at which time the band (130) is positioned on the spout neck (210), the third step (114) contacts the upper surface of the second step (230), the second protrusions (156) and the third protrusions (116) contact the upper surface of the first step (220), and the cap body (110) seals the opening (202) of the spout (200).

[0034] In order to use the contents of the pouch in this state, the user first rotates the cap body (110) in the reverse direction. While the cap body (110) is rotating in the reverse direction, the entire cap (100) rotates in the reverse direction. At this time, the cap body (110) rises due to the loosening of the screw connection, whereas the band (130) is caught on the first step (220) and cannot rise. The cap body connecting end (152) of the connecting strap (150) rotates and rises in the reverse direction together with the cap body (110), while the band connecting end (154) of the connecting strap (150) only rotates in the reverse direction together with the band (130) and cannot rise, and as a result, all bridges (172, 174, 176) are broken. The user, having completely loosened the screw connection, completely separates the cap body (110) from the spout (200) and then discharges the contents of the pouch through the opening (202) of the spout (200) for use. At this time, the cap body (110) continues to be connected to the band (130) remaining on the spout neck (210) and the connection maintenance band (150).

[0035] In the spout cap (100) described above, since the band (130) can rotate freely in the spout neck (210), first, when the cap body (110) rotates in the reverse direction, no twisting occurs in the connecting strap (150), so there is no risk of the connecting strap (150) breaking due to the twisting, and second, the connecting strap (150) can be provided in a short length. That is, if the band (130) cannot rotate in the spout neck (210), the band connecting end (154) cannot rotate and only the cap body connecting end (152) rotates in the reverse direction, which may cause the connecting strap (150) to twist and break, and the connecting strap (150) must be formed in a long length sufficient to be wound several times in the circumferential direction, but in the present invention, such problems do not occur at all.

[0036] In addition, in the above-mentioned spout cap (100), the connecting retaining band (150) has a length (e.g., 180 degrees) shorter than the entire circumferential section (360 degrees) located between the bottom of the cap body (110) and the top of the band (130), so all bridges (172, 174, 176) are broken by only about 1 to 2 reverse rotations of the cap body (110). Therefore, the user can reverse the cap body (110) with strong force only about 1 to 2 times, and then very easily reverse the cap body (110) with weak force thereafter.

[0037] As described above, although the present invention has been explained by limited embodiments and drawings, the present invention is not limited thereto and can be modified and varied in various ways by those skilled in the art within the scope of the technical spirit of the present invention and the equivalent scope of the claims described below, and the above-described embodiments can be combined in various ways. Explanation of the symbols

[0038] 100: Cap for spout 110: Cap body 112: Cap body threads 114: Third step 116: Third projection 130: Band 132: 1st projection 150: Connection retaining band 152: Cap body connector 154: Band connector 156: Second projection 172: First bridge 174 : 2nd Bridge 176 : 3rd Bridge 200 : Spout 202 : Opening 204: Spout thread 210: Spout neck 220 : 1st step 230 : 2nd step

Claims

Claim 1 A cap for a spout that is fastened to a spout sealedly coupled to a pouch, wherein the cap body is provided with an inner surface having a cap body thread that screws into a spout thread formed on the outer surface of the spout, and is configured to open and close an opening formed in the spout for discharging contents within the pouch; when the cap body closes the opening through the screw coupling, the cap body is positioned at the spout neck below the spout thread, and when the screw coupling is released, the band rotates freely in the circumferential direction from the spout neck without falling upward from the spout neck, and has a vertical height that is uniformly provided along its entire length; and a band formed with a cap body connecting end connected to the cap body and a band connecting end connected to the band, extending along the circumferential direction between these two ends, having a length that is located only in a portion of the entire circumferential section (360 degrees) that is 180 degrees or more, and having a lower end positioned higher than the upper end of the band, wherein even if the cap body is separated from the spout, the cap body and the band A spout cap comprising: a connection retaining band that maintains the connection; and a plurality of bridges arranged to connect the connection retaining band, the cap body, and the band, which are severed by the upward movement of the cap body when the screw connection is released, and which are all severed before the release of the screw connection is completed. Claim 2 delete Claim 3 A cap for a spout according to claim 1, wherein the plurality of bridges comprises: a first bridge connecting the upper end of the connecting retaining band and the lower end of the cap body; a second bridge connecting the lower end of the connecting retaining band and the upper end of the band; and a third bridge connecting the lower end of the cap body and the upper end of the band in a section where the connecting retaining band is not present. Claim 4 A spout cap according to claim 1, wherein a ring-shaped first step protruding outward is provided on the outer surface of the spout located between the spout screw thread and the spout neck, and a plurality of first protrusions protruding inward are provided on the inner surface of the band so as to be arranged along the circumferential direction, wherein the first step and the plurality of first protrusions are provided such that the plurality of first protrusions allow the plurality of first protrusions to move downward over the first step but do not allow them to move upward, and the outer surface of the spout neck is provided smoothly so as not to hinder the circumferential rotation of the plurality of first protrusions. Claim 5 In paragraph 4, a plurality of second protrusions protruding inwardly are arranged along the circumferential direction on the inner surface of the connecting retaining band, and in the section where the connecting retaining band is not present, a plurality of third protrusions protruding inwardly are arranged along the circumferential direction on the inner surface of the cap body, and the second protrusions and third protrusions are a spout cap that contacts the upper surface of the first step when the cap body closes the opening through the screw connection. Claim 6 In paragraph 4, a ring-shaped second step is provided on the outer surface of the spout located between the spout screw thread and the first step, protruding outward with an outer diameter smaller than the outer diameter of the first step, and a ring-shaped third step is provided on the inner surface of the cap body, protruding inward from the lower part of the cap body screw thread, and the third step is a spout cap that contacts the upper surface of the second step when the cap body closes the opening through the screw connection. Claim 7 In claim 6, the outer diameter of the second step is formed so that the first protrusions moving downward during screw coupling do not get caught in the spout cap.

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