JP4026809B2 - Container stopper - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention mainly relates to a plug attached to a liquid container such as a beverage.
[0002]
[Prior art]
Paper-based containers are widely used as containers for various liquids such as milk and juice. Some of these containers have a type that can be fitted with a liquid pouring stopper, and this stopper has a cylindrical part whose inside is closed by a blocking wall from the viewpoint of hygiene and tamper evidence. A cap body that is made of synthetic resin and a cap that fits on the outer periphery of the cap body, and is surrounded by the thin wire portion by tearing the thin wire portion provided on the closing wall that closes the cylindrical portion. A plug is known that removes the closed wall and opens it.
[0003]
Conventionally, in this type of plug, as a means for tearing the thin wire portion provided on the blocking wall that closes the cylindrical portion, generally, the closing wall surrounded by the thin wire portion has a ring portion at the tip. A puller is provided, and when opening the cap, the cap is removed, a finger is inserted into the tubular part of the plug body, hooked on the ring of the puller, and the puller is pulled to tear the thin wire portion. Thus, the blocking wall surrounded by the thin-line portion is removed and opened. However, according to the above plug, there is a problem that the finger may touch the inner surface of the cylindrical portion because the finger is inserted into the cylindrical portion serving as the spout, which is not necessarily preferable for hygiene.
[0004]
Therefore, in order to solve the above problem, a thin-walled wire portion is formed on the blocking wall so that the blocking wall can be torn as a continuous band having a start end and a terminal end, and a pin is provided at a portion that becomes the start end of the continuous band. Japanese Patent Laid-Open No. 2000-229655 discloses a cap for a container that is provided with an engaging projection that engages with a pin in the cap, and when the cap is rotated in the opening direction, the continuous band is cut together to open the cap. ing.
[0005]
[Problems to be solved by the invention]
However, in the container cap disclosed in Japanese Patent Application Laid-Open No. 2000-229655, the engagement protrusion draws a circular orbit with respect to the closed wall surface due to the rotation of the cap. As the band tearing position and the engagement position between the pin on the blocking wall side and the engagement projection on the cap side move away, as a result, the continuous band tearing direction and the traveling direction of the pin and the engagement protrusion in the engaged state Is gradually shifted, and the tearing force generated by the pin and the engaging projection in the engaged state does not work efficiently in the tearing direction of the continuous band, so that there is a problem that it is difficult to tear.
[0006]
An object of the present invention is to provide a container plug that can easily and hygienically open a blocking wall blocking the inside of a cylindrical portion.
[0007]
[Means for Solving the Problems]
The configuration of the present invention that achieves the above object is as follows.
[0008]
The invention described in claim 1
It is composed of a synthetic resin-made plug body having a cylindrical portion closed by a blocking wall and a cap fitted on the outer periphery of the plug body, and is provided on the blocking wall that closes the cylindrical portion. In the stopper of the container that is opened by removing the closed wall surrounded by the thin line part by tearing the thin line part, the closed wall closing the cylindrical part is located on the lower side of the cylindrical part, At least a part of the periphery thereof has a rising wall portion connected to the upper side of the rising cylindrical portion so as to face the cylindrical portion, and the thin-walled portion provided on the blocking wall has one end The outer thin wire portion proceeds in a generally circumferential direction with the connecting portion of the two inner thin wire portions as a starting end, and the leading end is on the starting end side. Connected to the thin wire portion to form an annular portion, the inner thin wire portion is the outer side Its tip advances to generally parallel to the same direction with the meat line portion, within said annular part, with reference to the rotational direction when unsealing the cap, extending at the location or beyond the connection site of the tip of the outer thin line portion It is formed as stops, before Symbol start to become connecting portions of the two thin line portions inside and outside which constitute the thin walled wire portion is formed on the rising wall portion of the closing wall, the closing wall on the inside of the connecting portion A hooked body is provided on the rising wall, and a core projecting in the axial direction is provided in the cap, and the cap is rotated on the hooked body by rotating the cap in the opening direction. wherein the hook body dissect caught before Symbol thin walled wire portion from the connecting portion.
[0009]
From such a configuration, when rotating the cap in the unsealing direction, hooking of the cap side is caught in the hook of the closing wall, the closing wall constitutes a thin walled wire portion that provided in the closing wall as rotation of the cap a connecting portion comprising inner and outer two starting thin line portion along the thin line portions of the two inner and outer torn up in a continuous strip, when tearing to the tip of the outer thin line portion reaches, formed outside the thin line portion The inside of the annular part is cut and opened.
[0010]
Upon tearing before Symbol thin walled wire section, the closing wall for closing the cylindrical portion is positioned on the lower side of the cylindrical portion, at least part of its periphery the cylindrical portion and the rising tube shape so as to face has a rising wall portion for connecting the upper parts, the connecting portion comprising a front Symbol beginning of the two thin line portions inside and outside which constitute the thin walled wire section to the rising wall portion is formed, it was the torn continuous band wound around a core which projects axially into the cap, thereby tearing force will be working near the tearing position of the thin walled wire unit, to facilitate tearing of the thin walled wire portion, the cylindrical portion It is possible to easily open the blocking wall blocking the. Moreover, since it is in this opening and it is not necessary to insert a finger in a cylindrical part, it is hygienic.
[0011]
According to a second aspect of the present invention, the blocking wall that closes the cylindrical part according to the first aspect rises so that the entire periphery thereof faces the cylindrical part and is connected to the upper side of the cylindrical part. have Jo rising wall portion, the front Symbol thin walled wire portion, characterized in that it is formed in the rising wall portion of the tubular.
[0012]
From this configuration, the traveling direction and the inner and outer two tear direction of the thin walled wire portion that torn up from the beginning to become connecting portions of the thin line portion of the hook body due to rotation of the cap becomes be oriented in the same direction, as a result, continuous Since the direction of tearing of the band can be matched with the direction of travel of the hooked body and the hooked body in the hooked state, the tearing force of the hooked body in the hooked state and the hooked body is more efficient in the tearing direction of the continuous band work well, and easier tearing of the thin walled wire portion, further, the dissected continuous band wound around a core which projects axially into the cap, thereby tearing force of tearing position of the thin walled wire portion will be working in close can tear the thin walled wire portion is more easily, more easily opened closing wall which closes the tubular portion.
[0013]
According to a third aspect of the present invention, there is provided a hooked body provided on the rising wall portion of the blocking wall according to the first or second aspect and / or a hooking body provided outside the core body in the cap, When the cap is rotated in the direction opposite to the opening direction, the cap is allowed to rotate by elastic deformation.
[0014]
From this configuration, when the cap is structured to be screwed to the outer periphery of the cylindrical portion, the cap-side hooking body is hooked on the hooked body of the closing wall only when the cap is rotated in the removing direction. As a result, the rotation when the cap is screwed onto the cylindrical portion can be performed without any trouble.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
1 to 4 show a first example of an embodiment of a container stopper according to the present invention. FIG. 1 is a front view of the container stopper of this example, and FIG. 3 is a sectional view taken along line A, FIG. 3 is a sectional view taken along line BB in FIG. 2, and FIG.
[0016]
In the figure, reference numeral 1 denotes a cap body made of synthetic resin, which includes a cylindrical portion 3 whose inside is closed by a blocking wall 2 and a flange portion 4 formed on the outer periphery of the lower end of the cylindrical portion 3. Reference numeral 5 denotes a cap that is detachably fitted to the outer periphery of the tubular portion 3 that constitutes the plug body 1, and has a structure that is screwed to the outer periphery of the tubular portion 3 . Reference numeral 6 denotes a screw thread formed on the outer periphery of the cylindrical portion, and reference numeral 7 denotes a screw groove formed on the inner periphery of the cap 5.
[0017]
The blocking wall 2 that closes the cylindrical portion 3 is located below the cylindrical portion 3 and is connected to the upper side of the rising cylindrical portion 3 so that a part of the periphery of the blocking wall 2 faces the cylindrical portion 3. It has a rising wall 2a.
[0018]
8 is a thin walled wire portion provided in the closing wall 2. Thin walled wire portion 8 This is the thin line portion 8a of the inner and outer two of which one end is connected in the connecting portion 9, which consist 8b, the outer thin line section 8a as starting the connection portion 9, the cap In the same direction as the direction of rotation to be removed, it advances in a generally circumferential direction, and its tip is connected to either the outer thin wire portion 8a or the inner thin wire portion 8b on the start end side (connecting portion 9 side) by the connecting portion 11 and is annular. the part 10 is formed, the inner thin line part 8b its tip advances to generally parallel to the same direction as the outer thin line section 8a, inside the annular portion 10, based on the rotational direction when opening the cap, the It is formed so as to stop extends at a position or beyond the connection site 11 of the tip of the outer thin line portion 8a.
[0019]
Before Symbol inner and outer two constituting the thin wall wire 8 thin line section 8a, the coupling section 9 which is a starting end of 8b is formed in the rising wall portion 2a of the closing wall 2. In this example, the inner and outer two thin wire portions 8a and 8b reach the bottom wall portion 2b of the blocking wall 2 with a gentle inclination from the rising wall portion 2a, and at least the outer thin wire portion 8a extends along the periphery of the bottom wall portion 2b. It goes to the rising wall 2a again and is connected to the inner thin wire portion 8b on the starting end side (the connecting portion 9 side) to form the annular portion 10.
[0020]
The rising wall portion 2a of the closing wall 2, before Symbol thin walled wire section 8 out two constituting the thin line portion 8a, located inside the connecting portion 9 serving as a starting end of 8b, the hooking member 12 is It protrudes inward. Further, it said cap 5 core 13 protruding in the axial direction is provided on the outside of the core body 13, the caught before Symbol thin to be hooked member 12 by rotating in a direction to remove the cap 5 A hooking body 14 for tearing the meat wire portion 8 from the connecting portion 9 is provided. At least one of the hooked body 12 and the hooking body 14 is elastically deformed when the cap 5 is rotated in the screwing direction so that the cap 5 can be rotated. ing.
[0021]
Further, the hooked body 12 and the hooked body 14 are not particularly limited as long as the hooked body 12 and the hooked body 14 are structured to be securely hooked and not easily detached when rotated in the direction in which the cap 5 is removed. In this example, the hooked body 12 has a shape in which a ring portion 15b having a larger volume than the narrow neck portion 15a is formed at the tip of the narrow neck portion 15a protruding from the rising wall portion 2a of the blocking wall 2. The hooked body 12 protrudes inward so that the ring portion 15 b opens in the circumferential direction of the tubular portion 3. By configuring the hooked body 12 as described above, when the hooking body 14 is hooked and pulled on the ring portion 15b constituting the hooked body 12, the ring portion 15b has a larger volume than the narrow neck portion 15a. force is to concentrate on the root of the narrow neck portion 15a, it will be readily perform dissected from the coupling section 9 of the front Symbol thin walled wire portion 8. Moreover, since the to-be-hooked body 12 has such a structure, when the cap 5 is rotated in the screwing direction, the narrow neck portion 15a is easily elastically deformed so that the cap 5 can be smoothly rotated. It becomes. On the other hand, the hooking body 14 that is hooked on the hooked body 12 has a hook shape that is hooked on the ring portion 15b of the hooked body 12.
[0022]
FIG. 5 shows another example of the hooked body 12 and the hooking body 14, and the hooked body 12 has a composite hole 16 of a wide hole portion 16a and a narrow hole portion 16b. It has a shape having a bulging head portion 14 a and a neck portion 14 b that enter the wide hole portion 16 a and are guided and locked by the narrow hole portion 16 b by rotation of the cap 5. Moreover, in this example, although the said to-be-hooked body 12 and the hook body 14 are provided one each, you may provide two or more.
[0023]
The core body 13 provided in the cap 5 so as to protrude in the axial direction has a cylindrical shape concentric with the cylindrical portion 5a of the cap 5 in this example, but is not limited thereto. Absent.
[0024]
FIG. 6 shows another example of the core body 13 of the cap 5, and the core body 13 is an array of column bodies 13 a erected in the circumferential direction along the inner periphery of the cylindrical portion 5 a of the cap 5. It is formed by. The column body 13a is plate-shaped, but may be columnar.
[0025]
In the container stopper of this example configured as described above, when the cap 5 is rotated in the direction to remove the cap 5, the hooking body 14 on the cap 5 side is hooked on the hooked body 12 of the closing wall 2, and the closing wall 2 is 5 of rotating as the closing wall 2 provided are that thin walled wire section 8 out two constituting the thin line portion 8a, the thin line portion 8a starting from the coupling section 9 consisting of two 8b, along 8b When it is cut into a continuous band and the tear reaches the tip of the outer thin wire portion 8a, the inside of the annular portion 10 formed by the outer thin wire portion 8a is cut off and opened.
[0026]
Upon tearing before Symbol thin walled wire portion 8, the closing wall 2 which closes the cylindrical portion 3 is positioned on the lower side of the cylindrical portion 3, so that part of the circumference is opposed to the cylindrical portion 3 It has a rising wall portion 2a for connecting an upper tubular portion 3 stand up, and out two thin line portions 8a constituting the front Symbol thin walled wire portion 8 to the rising wall portion 2a, and the starting end of 8b Since the connecting portion 9 is formed, the torn continuous band is sequentially wound around the core body 13 protruding in the axial direction in the cap 5. Thus tearing force will be working near the tear position of the annular thin line portion 8, to facilitate the tearing of the thin walled wire portion 8, easily cut open the closing wall 2 which closes the cylindrical portion 3 can do. Moreover, since it is not necessary to insert a finger into the cylindrical part 3 in this opening, it is hygienic.
[0027]
7 to 9 show a second example of the container stopper according to the present invention. FIG. 7 shows the same example of the container stopper of this example as in FIG. FIG. 8 is a sectional view taken along the line CC of FIG. 7, and FIG. 9 is a developed view showing the shape of the thin-walled portion formed on the blocking wall. Note that portions corresponding to those in the first example shown in FIGS. 1 to 4 are denoted by the same reference numerals.
[0028]
In this example, the blocking wall 2 that closes the inside of the tubular part 3 constituting the plug body 1 rises so that the entire periphery thereof faces the tubular part 3 and is connected to the upper side of the tubular part 3. have Jo rising wall portion 2a, the thin walled wire portion 8 is formed on the rising wall portion 2a which has a cylindrical shape.
[0029]
In this example, the thin walled wire portion 8 has one end linked inner and outer two thin line portions 8a, which consists 8b, the outer thin line portion 8a of the connecting portion 9 as starting at the connection portion 9, the In the same direction as the direction of rotation to remove the cap, it goes around in the circumferential direction and goes around the cylindrical rising wall portion 2a, and its tip is connected to the outer thin wire portion 8a on the start end side (connecting portion 9 side). linked to form a cyclic portion 10 at the site 11, the inner thin line section 8b the tip advances in the same direction generally parallel to the outer thin line portion 8a is, in the said annular portion 10, when unsealing the caps rotational direction with reference, are formed so as stops extending between a position beyond the connection site 11 of the tip of the outer thin line portion 8a.
[0030]
Other configurations are the same as those in the first example.
[0031]
From this configuration, the traveling direction and two thin line portions 8a of the hook member 14 by rotation of the cap 5, is starting to become tear direction of the connecting portion that torn up from 9 thin walled wire portion 8 of 8b be oriented in the same direction As a result, the tearing direction of the continuous band and the traveling direction of the hooked body 14 in the hooked state and the hooked body 12 can be matched, so that the hooked body 14 in the hooked state and the hooked body 12 are torn. force acts more efficiently in the tearing direction of the continuous band, and further facilitate the tearing of the thin walled wire portion 8, further, the dissected continuous band wound around the core 13 which projects axially within the cap 5, Thus tearing force will be working near the tear position of the thin walled wire portion 8, and easier tearing of the thin walled wire portion 8, a closing wall 2 which closes the cylindrical portion 3 more easily Can be opened That.
[0032]
【The invention's effect】
As described above, according to the present invention, the cylinder includes a plug body made of a synthetic resin having a cylindrical portion whose inside is blocked by a blocking wall, and a cap fitted to the outer periphery of the plug body. In the stopper of the container that opens by removing the blocking wall surrounded by the thin-walled portion by tearing the thin-walled portion provided on the blocking wall that closes the cylindrical-shaped portion, the blocking wall that closes the cylindrical portion is: It has a rising wall portion that is located on the lower side of the cylindrical portion and is connected to the upper side of the rising cylindrical portion so that at least a part of the periphery of the cylindrical portion faces the cylindrical portion, and is provided on the blocking wall. The thin wire portion is composed of two inner and outer thin wire portions connected at one end, and the outer thin wire portion proceeds generally in the circumferential direction with the connecting portion as a start end, and the tip is on the start end side. Connect to either the inner or outer thin wire part to form an annular part, the inner thin wire part is Its tip advances to generally parallel to the same direction as the Kisotogawa thin line portion, within said annular part, with reference to the rotational direction when unsealing the cap, the position or beyond the connection site of the tip of the outer thin line portion is formed so as to stop extends, before Symbol start to become connecting portions of the two thin line portions inside and outside which constitute the thin walled wire portion is formed on the rising wall portion of the closure wall, closed on the inside of the connecting portion A hooked body is provided on the rising wall portion of the wall, and a core body protruding in the axial direction is provided in the cap, and the hooked body is rotated outside the core body by rotating the cap in one direction. since hooking member tearing the connecting portion before Symbol thin walled wire portion caught in the body is provided, by rotating the cap in the unsealing direction, hooking of the cap side is caught in the hook of the closing wall, the cap Occlusion wall as it rotates Dissected from the inner and outer two coupling portions comprising the starting end of the thin line portion of which constitutes the thin wall wire portion that is provided, it is possible to cut open the closing wall in the annular portion formed outside the thin line portion. Then, upon tearing of the thin walled wire section, the closing wall for closing the cylindrical portion is positioned on the lower side of the cylindrical portion, part of its periphery with little rise in as to face the cylindrical portion has a rising wall portion for connecting an upper tubular portion, the connecting portion is formed to be a starting end of the inner and outer two thin line portions constituting the front Symbol thin walled wire section to the rising wall portion, the torn continuous band which is wound around a core which projects axially into the cap, thereby tearing force will be working near the tearing position of the thin walled wire unit, to facilitate tearing of the thin walled wire section, the cylinder Since the blocking wall closing the inside of the shaped portion can be easily opened, the plug can be easily opened.
[Brief description of the drawings]
FIG. 1 is a front view showing a first example of an embodiment of a container cap according to the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
3 is a cross-sectional view taken along line BB in FIG.
FIG. 4 is a development view showing a shape of a thin wire portion formed on a blocking wall in the first example.
FIG. 5 is a perspective view showing another example of a hooked body and a hooking body.
6 is a partially cutaway perspective view seen from the opening side showing another example of the core provided in the cap. FIG.
7 is a second example of an embodiment of a container cap according to the present invention, and is a cross-sectional view of the first example at the same location as FIG. 2. FIG.
8 is a cross-sectional view taken along line CC in FIG.
FIG. 9 is a development view showing the shape of a thin wire portion formed on the blocking wall in the second example.
[Explanation of symbols]
1 neck plug body 2 closing wall 2a rising wall portion 2b bottom wall 3 the cylindrical portion 4 flange 5 cap 5a tubular portion 6 screw thread 7 the thread groove 8 thin walled wire portion 8a outside the thin line part 8b inside the thin line section 9 Connecting portion 10 Annular portion 11 Connecting portion 12 Hooked body 13 Core body 13a Column body 14 Hooking body 14a Swelling head portion 14b Neck portion 15a Narrow neck portion 15b Ring portion 16 Compound hole 16a Wide hole portion 16b Narrow hole portion

Claims (3)

It is composed of a synthetic resin-made plug body having a cylindrical portion closed by a blocking wall and a cap fitted on the outer periphery of the plug body, and is provided on the blocking wall that closes the cylindrical portion. In the stopper of the container opened by tearing the thin-walled wire part and removing the blocking wall surrounded by the thin-walled wire part,
The blocking wall that closes the cylindrical portion is located on the lower side of the cylindrical portion, and a rising wall portion that is connected to the upper side of the rising cylindrical portion so that at least a part of the periphery of the blocking wall faces the cylindrical portion. In addition, the thin wire portion provided on the blocking wall is composed of two thin wire portions inside and outside with one end connected, and the outer thin wire portion is the same as the two thin wire portions inside and outside. The connecting portion is started in the circumferential direction and the tip thereof is connected to either the inner or outer thin wire portion on the starting end side to form an annular portion, and the inner thin wire portion is substantially parallel to the outer thin wire portion. its tip advances in the same direction, the inner annular portion, based on the rotational direction when unsealing the cap, is formed so as to stop extends until a position beyond the connection site of the tip of the outer thin line portion, before connecting portion whose serial the starting end of the two thin line portions inside and outside which constitute the thin walled wire portion Formed in the rising wall portion of the serial closing wall, the hook member is provided in the rising wall portion of the closing wall on the inside of the connecting portion,
Said inside cap core projecting in the axial direction is provided on the outside of the core body, the SL front caught in the hook body thin walled wire portion from the connecting portion by rotating said cap in the unsealing direction A container stopper characterized in that a hooking body for tearing is provided. Closing wall for closing the tubular portion, the entire circumference has a cylindrical rising wall portion that connects the upper cylindrical portion rises so as to face the cylindrical portion, before Symbol thin walled wire portion The container stopper according to claim 1, wherein the container is formed in a cylindrical rising wall portion. The hooked body provided on the rising wall portion of the closing wall and / or the hook provided on the outside of the core in the cap is elastically deformed when the cap is rotated in the direction opposite to the opening direction. The cap of the container according to claim 1 or 2, wherein the cap can be rotated.

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