Note

Abstract

The present invention provides a dispensing device equipped with a divisible opening history indicator band (hereinafter referred to as TE band) and an annular flange portion, which, when the dispensing device is opened, causes plastic deformation of a non-breakable connecting piece (hereinafter referred to as strip) that connects the cap and the TE band, and also divisces the TE band, thereby providing a dispensing device that clearly indicates whether the device has been opened. [Solution] The dispensing device is characterized by having a plurality of engaging protrusions 8 formed on the outer surface of a cylindrical body 2, an annular flange portion 9 formed below the engaging protrusions 8, a plurality of ratchets 16 formed on the inner surface of the TE band 6 that can engage with the engaging protrusions 8 of the cylindrical body 2 in the circumferential direction, and a tapered or arc-shaped guide surface 10 on the upper surface of the annular flange portion 9 that slopes downward as it goes radially outward.

Description

Technical Field

[0001] The present invention relates to a pouring spout provided with an opening history display band (TE band), and more particularly to a pouring spout in which the opening history can be clearly determined.

Background Art

[0002] Pouring spouts provided with a TE band for indicating the opening history are widely used for quality assurance of container contents and prevention of mischief.

[0003] In such a pouring spout provided with a TE band, a type in which the TE band itself is divided when the cap is opened is known (for example, Patent Document 1). In this type of pouring spout, the TE band is connected to the cap by a breaking connection piece that breaks when the cap is opened and a non-breaking connection piece that does not break when the cap is opened. Further, the TE band is divided by a vertical slit extending in the vertical direction, and a divided surface facing each other is formed. Furthermore, the divided surfaces are connected to each other by an upper bridge and a lower bridge that break when the cap is opened.

[0004] When opening such a dispensing device, as the cap is rotated in the opening direction, the opening side of the TE band is pulled upward by the non-breakable connecting piece, while the closing side of the TE band is restricted from rotating due to its engagement with the non-breakable connecting piece. At this time, stress is applied to the upper and lower bridges that connect the divided sections, but the stress concentrates more on the upper bridge, which is closer to the joint between the non-breakable connecting piece and the TE band. As a result, the upper bridge stretches more than the lower bridge, and the TE band deforms by opening radially outward around the slit, causing the upper bridge to break. At this point, the opening and closing sides of the TE band are connected only by the lower bridge, and the band opens in a V-shape around the slit. Further rotation of the cap in the opening direction causes the non-breakable connecting piece to stretch further and undergo plastic deformation, causing the lower bridge to break, and the TE band to be completely separated. Therefore, by observing the state in which the non-fractured connecting piece is plastically deformed and the state in which the TE band is broken, the average consumer can recognize that the cap has been opened.

[0005] Incidentally, some dispensing devices have an annular flange below the cap (for example, Patent Document 2). In dispensing devices with such an annular flange, the annular flange acts as a baffle, preventing fingers, rod-shaped objects, etc. from entering through the gap between the cylindrical body and the cap. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Patent No. 6364234 [Patent Document 2] Japanese Patent Application Publication No. 10-181763 [Overview of the project] [Problems that the invention aims to solve]

[0007] However, when an annular flange is provided on a dispensing device with a segmented TE band, the lower end of the TE band and the upper surface of the annular flange may come into contact when the dispensing device is opened. This hinders the movement of the TE band, preventing it from deforming by opening radially outward around the slit. As a result, the upper and lower bridges may break before the non-breakable connecting piece is fully extended, potentially preventing plastic deformation of the non-breakable connecting piece. Consequently, with such a dispensing device, ordinary consumers may have difficulty recognizing that the cap has been opened.

[0008] Therefore, the object of the present invention is to provide a dispensing device equipped with an opening history indicator band of the type that breaks when the cap is opened, and an annular flange, wherein when the cap is opened, plastic deformation occurs in the non-breakable connecting piece that connects the cap and the opening history indicator band, and the opening history indicator band is broken, thereby providing a dispensing device in which the opening history can be clearly identified. [Means for solving the problem]

[0009] According to the present invention, a dispensing device comprising a cylindrical body and a cap that is detachably attached to the cylindrical body by screw engagement, the cap comprising a top surface and a skirt portion hanging down from the periphery of the top surface, Multiple engaging protrusions are formed on the outer surface of the cylindrical body, and an annular flange is formed below these engaging protrusions. The cap is equipped with an opening history indicator band, the upper end of which is connected to the lower end of the skirt portion by a non-breakable connecting piece that does not break when opened and a breakable connecting piece that breaks when opened, and the inner surface of which is equipped with a plurality of ratchets that can engage in the circumferential direction with the engaging projection of the cylindrical body. The provided dispensing device is characterized in that the upper surface of the annular flange has a tapered or arc-shaped guide surface that slopes downward as it extends radially outward.

[0010] In the dispensing device of the present invention, (1) The engaging projection extends upward from the annular flange, (2) The outer diameter of the annular flange is less than or equal to the outer diameter of the band indicating the opening history, and greater than or equal to the inner diameter. (3) The lower end of the tampering indicator band and the upper surface of the annular flange are in close proximity or in contact. (4) When opened, the lower end of the opening history indicator band comes into contact with the guide surface of the annular flange, causing it to move radially outward, the non-breakable connecting piece to plastically deform, and the opening history indicator band to break apart. (5) The cylindrical body is a spout with a base for joining a container at its lower part. This is preferable. [Effects of the Invention]

[0011] The TE band provided in the dispensing device of the present invention is of the split type, and the cylindrical body has an engaging projection that engages with a ratchet formed on the inner surface of the TE band, and below that, an annular flange having a tapered or arc-shaped guide surface on its upper surface that slopes downward as it extends radially outward. Therefore, even if the lower end of the TE band comes into contact with the annular flange when opening the dispensing device, the upper surface of the annular flange has a tapered or arc-shaped guide surface that slopes downward as it extends radially outward, so the movement of the TE band is not hindered, and the TE band can open in a V-shape along the guide surface. As a result, the bridge provided at the upper part of the split section breaks first, then the non-breakable connecting piece connected to the cap stretches out in the circumferential direction and undergoes plastic deformation, and the bridge provided at the lower part of the split section breaks, thus splitting the TE band. Therefore, ordinary consumers can easily recognize that the cap has been opened. Furthermore, the annular flange of the dispensing device allows the gap between the engaging protrusions to be covered from below, preventing the entry of foreign matter. [Brief explanation of the drawing]

[0012] [Figure 1] A side view of the dispensing device of the present invention. [Figure 2] Plan view of the pouring spout of FIG. 1. [Figure 3] Half-sectional view showing the fitting cross-section of the cylindrical main body and the cap in the pouring spout of FIG. 1. [Figure 4] Half-sectional view of the cylindrical main body in the pouring spout of FIG. 1. [Figure 5] Side view of the cylindrical main body in the pouring spout of FIG. 1 rotated 90 degrees in the circumferential direction. [Figure 6] Plan view of the cylindrical main body in the pouring spout of FIG. 1. [Figure 7] Side view of the cap in the pouring spout of FIG. 1. [Figure 8] Side cross-sectional view of the cap in the pouring spout of FIG. 1. [Figure 9] Bottom view of the cap in the pouring spout of FIG. 1. [Figure 10] Diagram showing the relationship between the ratchet and the engaging projection of the cylindrical main body in the pouring spout of FIG. 1. [Figure 11] Diagram showing the movement of the opening history display band and the annular flange when the pouring spout of FIG. 1 is opened. [Figure 12] Diagram showing the movement of the opening history display band and the annular flange when the pouring spout of the modified example of the present invention is opened.

Embodiments for Carrying Out the Invention

[0013] The pouring spout of the present invention may be, for example, the mouth of a bottle according to its usage form, or may be a cylindrical pouring spout 1 called a spout welded to a bag-shaped container. However, as shown in FIG. 1, it is preferably a spout provided with a base for container joining at the lower part. Hereinafter, the spout shape will be specifically described according to the attached drawings.

[0014] Referring to Figures 1 to 3, the dispensing device 1 of the present invention broadly consists of a cylindrical body 2 and a cap 3 that is detachably attached to the cylindrical body 2 by screw engagement. The cap 3 is formed of a top surface 4 and a skirt portion 5 that hangs down from the periphery of the top surface 4, and is equipped with a TE band (opening history indicator band) 6 connected to the lower end of the skirt portion 5.

[0015] Referring to Figures 3 to 6, the cylindrical body 2 is an elongated, hollow tubular body as a whole, with a male thread 7 formed on its upper outer surface. On the outer surface of the cylindrical body 2, below the male thread 7, a plurality of engaging protrusions 8 are formed for controlling the rotation of the opening history indicator band 6, and below the engaging protrusions 8, an annular flange 9 is formed. This annular flange 9 has the function of preventing fingers, rod-shaped objects, etc. from entering through the gap between the cylindrical body 2 and the cap 3.

[0016] Furthermore, a support flange 40a is formed below the annular flange 9, spaced apart in the axial direction, and a support flange 40b is formed further below it. Support flanges 40a and 40b play functional roles such as gripping and supporting the dispensing device 1 during transport. In addition, a base portion 50 for joining (welding) the pouch container is formed below the support flange 40b, and the cylindrical body 2 has a spout shape. By joining (welding) the outer surface of this base portion 50 to the inner surface of the pouch container, the sealing performance of the joint between the pouch container and the dispensing device 1 is maintained.

[0017] The cylindrical body 2 is integrally injection-molded from various known resin materials, and suitable resin materials include, for example, polyethylene resin or polypropylene resin.

[0018] As shown in Figure 3, the upper surface of the annular flange 9 has an arc-shaped guide surface 10 that slopes downward as it extends radially outward, and this is a major feature of the present invention.

[0019] As shown in Figures 4 and 5, multiple engaging projections 8 are formed in the circumferential direction and extend upward from the annular flange 9. Also, as shown in Figure 3, the annular flange 9 has an outer diameter that is less than or equal to the outer diameter of the TE band 6 and greater than or equal to the inner diameter of the TE band 6. Furthermore, in the dispensing device 1 with the structure described above, the lower end of the TE band 6 and the upper surface of the annular flange 9 are in close proximity.

[0020] Referring to Figures 7 and 8, an inner ring 11 is formed on the inner surface of the top surface 4 of the cap 3 attached to the cylindrical body 2, extending downward at a distance from the skirt portion 5, and small protrusions 12, 12 are formed in the portion between the inner ring 11 and the skirt portion 5. In addition, a female thread 13 is formed on the inner surface of the skirt portion 5.

[0021] In the cap 3, the female threads 13 formed on the inner surface of the skirt portion 5 engage with the male threads 7 formed on the outer surface of the cylindrical body 2, thereby attaching the cap 3 to the cylindrical body 2. In this state, the upper end of the cylindrical body 2 enters the space between the inner ring 11 and the skirt portion 5, and its upper end surface is pressed against the small protrusions 12, 12 formed on the inner surface of the top surface 4, thereby ensuring a good seal.

[0022] Furthermore, as shown in Figure 8, vertical ribs 14 extending axially at appropriate intervals are provided on the upper part of the inner surface of the skirt portion 5. These vertical ribs 14 act as centering when the cap 3 is attached to the cylindrical body 2, and are intended to prevent the cap 3 from being placed on at an angle. Furthermore, the outer surface of the skirt portion 5 is formed with knurling 15 for anti-slip purposes, allowing the cap 3 to rotate smoothly in both the closing and opening directions.

[0023] Furthermore, multiple ratchets 16 are formed on the inner surface of the TE band 6. These ratchets 16 can engage in the circumferential direction with the engaging projections 8 formed on the outer surface of the cylindrical body 2 described above. That is, as shown in Figures 9 and 10, these ratchets 16 allow rotation in the closing direction Y, but have a shape that restricts the rotation of the TE band 6 in the opening direction X by contacting the engaging projections 8 formed on the outer surface of the cylindrical body 2.

[0024] As can be seen from Figures 8, 9, and 10, an inner flange 6a projecting horizontally inward is formed at the upper end of the TE band 6. That is, the upper surface of this inner flange 6a faces the lower end of the skirt portion 5. Furthermore, a ratchet 16 is formed so as to be integrally connected from the inner circumferential surface of the TE band 6 to the lower surface of the inner flange 6a, and this ratchet 16 is directed radially inward and toward the opening direction X (see Figure 9). By controlling the rotation of this ratchet 16, the TE band 6 performs the function of indicating the opening history. This function of indicating the opening history will be described later.

[0025] The upper end of the TE band 6 is connected to the lower end of the skirt portion 5 by a long, thin, string-like strip (non-breakable connecting piece) 20. This strip 20 functions as a non-breakable connecting piece that does not break when the cap is opened, and is a component that ensures that when the cap 3 is removed from the cylindrical body 2, the TE band 6 does not remain on the cylindrical body 2 side but is removed together with the cap 3.

[0026] Furthermore, the upper end of the TE band 6 and the lower end of the skirt portion 5 are connected by a narrow bridge 21 (breakable connecting piece). This narrow bridge 21 functions as a breakable connecting piece that breaks when the cap 3 is opened, and is provided to ensure that the TE band 6 does not deform when the dispensing device 1 is supplied or when the cap 3 is attached to the cylindrical body 2 (capping), and that it is stably attached to the cylindrical body 2 together with the cap 3.

[0027] Furthermore, an arc-shaped rib 22 for adjusting the gap with the TE band 6 is formed on the lower end surface of the skirt portion 5, except for the portion where the strip 20 is located. In other words, the formation of such a rib 22 narrows the gap between the TE band 6 and the skirt portion 5, mitigating stress when an axial load is applied to the cap 3, and preventing damage to the aforementioned narrow bridge 21 and strip 20.

[0028] Incidentally, the TE band 6 is divided by a vertical slit 30 that extends in the vertical direction, forming two opposing cross-sections 30a and 30b. That is, referring to Figures 9 and 10, the cap 3 is rotated in the direction indicated by X when opening and rotated in the direction indicated by Y when closing. The vertical slit 30 divides the TE band 6 into an opening side portion α located on the opening direction X side and a closing side portion β located on the closing direction Y side. The strip 20 is connected to the opening side portion α of the TE band 6.

[0029] As shown in the bottom view of Figure 9, in this example, two slits 30 are formed at symmetrical positions, and the TE band 6 is divided into an open side α and a closed side β by each slit 30, with a ratchet 16 formed on each of the TE bands 6 divided by the slits 30.

[0030] Furthermore, the cross-sections 30a and 30b formed by the slit 30 are connected to each other by an upper bridge 31a and a lower bridge 31b that break when the cap is opened.

[0031] In the dispensing device 1 with the above structure, when the cap 3 (skirt portion 5) attached to the cylindrical body 2 is rotated in the opening direction X to open the cap 3, the TE band 6 is pulled by the strip 20 and moves toward the opening direction X. However, in the closed portion β partitioned by the slit 30, the movement toward the opening direction X is restricted by the rotation control by the ratchet 16 described above. As a result, the upper bridge 31a and the lower bridge 31b break, and the TE band 6 is divided into the open portion α and the closed portion β, thereby exhibiting TE properties.

[0032] By the way, it is preferable that the strip 20 described above be made long enough to form a folded portion 20a. That is, as shown in Figure 7, the joint between the strip 20 and the skirt portion 5 and the joint between the strip 20 and the TE band 6 are positioned near the slit 30 that divides the TE band 6, and at the same time, the total length of the strip 20 is set to be very long compared to the distance between the lower end of the skirt portion 5 and the upper surface of the TE band 6, so that a folded portion 20a is formed on the strip 20. By forming such a folded portion 20a on the strip 20, the breakage of the strip 20 when the cap 3 is opened is effectively prevented, and the detachment of the TE band 6 due to opening can be reliably prevented. Furthermore, once the cap is opened and the TE band 6 is completely divided, it becomes impossible to return the TE band 6 to a state close to its pre-divided form, and as a result, it exhibits excellent TE properties when resealing.

[0033] Referring to Figure 11, which shows the process of opening the cap 3, when the cap 3 is rotated in the opening direction while attached to the cylindrical body 2, the cap 3 rises. However, as shown in Figure 10, the ratchet 16 and the engaging projection 8 of the cylindrical body 2 engage, and the rotation of the TE band 6 is suppressed. Consequently, the gap between the skirt portion 5 and the TE band 6 gradually increases, and as a result, the folded portion 20a of the strip 20 gradually stretches, causing the aforementioned narrow bridge 21 to break. Furthermore, as the cap 3 is rotated in the opening direction, the strip 20 becomes fully stretched, and as a result, the opening side α of the TE band 6 is pulled in the opening direction X by the strip 20.

[0034] As the cap 3 is continued to rotate in the opening direction, the cap 3 rises further, and the opening side α of the TE band 6 is pulled upward in the opening direction X by the strip 20, but the closing side β of the TE band 6 is restricted from rotating due to its engagement with the ratchet 16 mentioned above. At this time, stress is applied to the upper bridge 31a and the lower bridge 31b that connect the divided sections 30a and 30b, but the stress is concentrated on the upper bridge 31a, which is closer to the joint between the strip 20 and the TE band 6. As a result, the upper bridge 31a stretches compared to the lower bridge 31b, and the TE band 6 deforms with its upper end opening radially outward around the slit, until the lower end of the TE band 6 comes into contact with the upper surface of the annular flange 9. Here, the upper surface of the annular flange 9 has an arc-shaped guide surface 10 that slopes downward as it extends radially outward. As a result, the lower end of the TE band 6 moves radially outward upon contact with the guide surface 10, causing the upper bridge 31a to break. At this point, the TE band 6 is connected only by the lower bridge 31b, with the opening side α and the closing side β connected by the lower bridge 31b, opening in a V-shape around the slit. Then, as the strip 20 stretches and undergoes further plastic deformation, the lower bridge 31b breaks, and the TE band 6 is completely separated. That is, the separated TE band 6 remains connected by the hanging strip 20, allowing the consumer to clearly recognize that it has been opened once. Position S is the point where the lower end of the TE band 6 and the upper surface of the annular flange 9 first come into contact when the cap 3 is opened.

[0035] As can be understood from the opening process described above, in the dispensing tool 1 with the structure described above, the upper surface of the annular flange portion 9 has an arc-shaped guide surface 10 that slopes downward as it extends radially outward. Therefore, even if the lower end of the TE band 6 and the upper surface of the annular flange 9 come into contact when opening the cap 3, the lower end of the TE band 6 moves radially outward while in contact with the guide surface 10. In other words, the movement of the TE band 6 being broken is not hindered by the annular flange 9. Accordingly, in the dispensing tool 1 with this structure, the problem of the upper bridge 31a and lower bridge 31b breaking without plastic deformation of the strip 20 occurring when opening the cap 3 is effectively prevented.

[0036] Furthermore, in the dispensing device 1 described above, it is preferable that the engaging projection 8 extends upward from the annular flange 9. With this configuration, the ratchet 16 can contact the engaging projection 8 formed on the outer surface of the cylindrical body 2, thereby more reliably restricting the rotation of the TE band 6 in the opening direction X.

[0037] Furthermore, it is preferable that the outer diameter of the annular flange 9 is less than or equal to the outer diameter of the TE band 6 and greater than or equal to the inner diameter of the TE band 6. By having an outer diameter of the annular flange 9 less than or equal to the outer diameter of the TE band 6, the movement of the TE band 6 to be separated is not excessively hindered by the annular flange 9, and excellent TE performance can be ensured. On the other hand, by having an outer diameter of the annular flange 9 greater than or equal to the inner diameter of the TE band 6, the risk of fingers, rod-shaped objects, etc., entering through the gap between the cylindrical body 2 and the cap 3 is effectively prevented.

[0038] Furthermore, in the dispensing device 1 with the structure described above, it is preferable that the lower end of the TE band 6 and the upper surface of the annular flange 9 are in close proximity or in contact. By having the lower end of the TE band 6 and the upper surface of the annular flange 9 in close proximity or in contact, the risk of fingers, rod-shaped objects, etc., entering through the gap between the cylindrical body 2 and the cap 3 is effectively prevented.

[0039] Furthermore, it is preferable that the annular flange 9 is flexible. As shown in Figure 11, for example, by forming the annular flange 9 with a thin wall thickness, and in conjunction with the fact that the upper surface of the annular flange 9 has an arc-shaped guide surface 10, even if the lower end of the TE band 6 and the upper surface of the annular flange 9 come into contact when the cap 3 is opened, the annular flange 9 is flexible and will bend downward along the movement of the TE band 6, allowing the TE band 6 to move radially outward while in contact with the guide surface 10. In other words, the effect of preventing the movement of the TE band 6 from being interrupted by the annular flange 9 is further enhanced. Therefore, in a dispensing device 1 with such a structure, the problem of the upper bridge 31a and lower bridge 31b breaking without plastic deformation of the strip 20 occurring when the cap 3 is opened is further effectively prevented.

[0040] Furthermore, when opening the cap 3, since the strip 20 has a folded portion 20a, tension is not applied to the strip 20 all at once. Instead, the folded portion 20a of the strip 20 is gradually stretched, and tension is applied gradually. In other words, the folded portion 20a acts as a buffer, relieving the tension. Therefore, with a dispensing device 1 of this structure, the inconvenience of the strip 20 breaking when opening the cap 3, that is, the inconvenience of the TE band 6 falling off, is effectively prevented.

[0041] Moreover, the strip 20 is very long, and after opening, the strip 20 has plastically deformed and hangs down very long, with the broken TE band 6 hanging down from it. Therefore, it is very difficult to restore it to its original shape, and when used for resealing, the strip 20 becomes considerably distorted, so the average consumer can easily recognize that the dispensing device 1 has been opened. In particular, when the cap 3 is small, the diameter of the TE band 6 becomes considerably small, so there is a greater tendency to overlook the breakage of the TE band 6. However, by setting the length of the strip 20 to be long, the distortion during resealing becomes very large, which is easily recognizable to the average consumer, and excellent TE performance can be ensured.

[0042] Furthermore, as shown in Figure 7, in the dispensing device 1 with the structure described above, it is preferable to provide guide protrusions 35a and 35b on the lower end of the skirt portion 5 of the cap 3 and the upper end of the TE band 6 (upper surface of the inner flange 6a), respectively, which engage with each other when opening or closing. Specifically, these protrusions 35a and 35b each have an upright surface and an inclined surface. When closing the cap 3 by attaching it to the cylindrical body 2, the upright surfaces come into contact and engage with each other, and the rotation of the cap 3 (skirt portion 5) in the closing direction is transmitted to the TE band 6. Initially when opening the cap 3, the inclined surfaces come into contact and engage with each other, and as the cap 3 rotates, the TE band 6 is pushed downward. This allows for opening and closing without placing an excessive load on the strip 20.

[0043] Furthermore, in the dispensing device 1 described above, as shown in Figure 7, it is preferable to provide a notch 37 on the upper surface of the closed-end side portion β separated by the slit 30, which allows for the folded portion 20a of the strip 20. This effectively avoids the inconvenience of having to increase the distance between the skirt portion 5 and the TE band 6 due to the formation of a long strip 20.

[0044] The present invention is not limited to the embodiments shown in the figures, and various modifications are possible. For example, in the embodiment shown in the figures, the upper surface of the annular flange portion 9 had an arc-shaped guide surface 10 that sloped downward as it moved radially outward, but as shown in Figure 12, the upper surface of the annular flange portion 9 may have a tapered guide surface 10 that sloped downward as it moved radially outward. In this embodiment as well, even if the lower end of the TE band 6 and the upper surface of the annular flange 9 come into contact when the cap 3 is opened, the TE band 6 can move radially outward while in contact with the guide surface 10 because the upper surface of the annular flange portion 9 has a tapered guide surface 10 that slopes downward as it moves radially outward. That is, the movement of the TE band 6 being broken is not hindered by the annular flange 9. Therefore, in a dispensing device 1 with such a structure, the problem of the upper bridge 31a and lower bridge 31b breaking without plastic deformation of the strip 20 occurring when the cap 3 is opened is effectively prevented.

[0045] In the embodiment shown in Figure 12, from the viewpoint of ensuring smooth movement of the TE band 6 being separated, the inclination angle r of the guide surface 10 is preferably 10 to 30 degrees.

[0046] Furthermore, in the embodiment shown in the figure, the guide surface 10 is formed in the region from the base end to the tip extending radially outward on the upper surface of the annular flange 9 (i.e., the entire upper surface of the annular flange 9). This is a preferred embodiment from the viewpoint of ensuring smooth movement when the TE band 6 is separated. However, regarding the region in which the guide surface 10 is formed, the guide surface 10 may be formed in the region on the upper surface of the annular flange 9 from the position S where the lower end of the TE band 6 and the upper surface of the annular flange 9 first come into contact when the cap 3 is opened, to the tip extending radially outward from that position S.

[0047] Furthermore, in the embodiment shown in the figure, the lower end of the TE band 6 and the upper surface of the annular flange 9 were in close proximity, but the lower end of the TE band 6 and the upper surface of the annular flange 9 may be in contact. When the lower end of the TE band 6 and the upper surface of the annular flange 9 are in contact, the risk of fingers, rod-shaped objects, etc., entering through the gap between the cylindrical body 2 and the cap 3 is effectively prevented.

[0048] Furthermore, in the embodiment shown in the figure, two vertical slits 30 are provided, but it is also possible to provide three or four such slits 30, each of which can be divided into an open side α and a closed side β. The number of slits 30 is not limited to two, and can be one or more than two. A ratchet 16 is provided in each of the TE bands 6 divided by these multiple slits 30, and a strip 20 is provided corresponding to each slit 30.

[0049] Furthermore, in the embodiment shown in the figure, two bridges are formed connecting the divided sections 30a and 30b (bridges 31a and 31b), but the number of such bridges can be greater than two. However, in terms of stably connecting the divided sections 30a and 30b with a small number of bridges, two bridges are preferable.

[0050] Furthermore, although the embodiment shown in the figure illustrates a dispensing device applicable to pouch containers, it may also be applied to containers other than pouches, such as paper cartons or plastic bottles, and may be applied to any container without departing from the spirit of the present invention. [Explanation of symbols]

[0051] 1: Pour tool 2: Cylindrical body 3: Cap 4: Top surface 5: Skirt section 6: TE band (band indicating opening history) 7: Male screw 8: Engagement protrusion 9: Annular flange 10: Guide surface 11: Inner Ring 12: Small protrusion 13: Female thread 14: Vertical ribs 15: Knurling 16: Ratchet 20: Strip (non-breakable connecting piece) 21: Narrow bridge 22: Rib 30a, 30b: Cut plane 31a, 31b: Fractured bridge (upper bridge, lower bridge) 35a, 35b: Guide projections 37: Notch 40a, 40b: Support flange 50: Base

Claims

1. A dispensing device comprising a cylindrical body and a cap that is detachably attached to the cylindrical body by screw engagement, the cap consisting of a top surface and a skirt portion hanging down from the periphery of the top surface, Multiple engaging protrusions are formed on the outer surface of the cylindrical body, and an annular flange is formed below these engaging protrusions. The cap is equipped with an opening history indicator band, the upper end of which is connected to the lower end of the skirt portion by a non-breakable connecting piece that does not break when opened and a breakable connecting piece that breaks when opened, and the inner surface of which is equipped with a plurality of ratchets that can engage in the circumferential direction with the engaging projection of the cylindrical body. The dispensing device is characterized in that the upper surface of the annular flange has a tapered or arc-shaped guide surface that slopes downward as it extends radially outward.

2. The dispensing device according to claim 1, wherein the engaging projection extends upward from the annular flange.

3. The dispensing device according to claim 1 or 2, wherein the outer diameter of the annular flange is less than or equal to the outer diameter and greater than or equal to the inner diameter of the band indicating the opening history.

4. The dispensing device according to claim 1 or 2, wherein the lower end of the opening history indicator band and the upper surface of the annular flange are in close proximity or in contact.

5. The dispensing device according to claim 1 or 2, wherein, upon opening, the lower end of the opening history indicator band comes into contact with the guide surface of the annular flange, causing it to move radially outward, and the non-breakable connecting piece plastically deforms, thereby severing the opening history indicator band.

6. The dispensing device according to claim 1 or 2, wherein the cylindrical body is a spout with a base for joining a container at its lower part.

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