JP6571347B2 - Bottle cap - Google Patents

Description

  The present invention relates to a bottle cap technique, and more particularly, to a bottle cap that is used by being attached to a cylindrical mouth portion of a liquid container for a water server.

  In recent years, a water server has been proposed in which a liquid container filled with a liquid such as drinking water is connected, and drinking water in the liquid container is taken out from a spout and provided. Normally, a liquid container connected to this type of water server is used with a bottle cap attached to the cylindrical mouth, and when the liquid container is connected to the water server, the water supply shaft of the water server is It is inserted into the liquid container through the bottle cap, and the drinking water in the liquid container is supplied to the spout through the water supply shaft without leaking out of the machine.

  As a conventional bottle cap, as disclosed in, for example, Patent Document 1 or Patent Document 2, a main body member having a cylindrical shape in which a bearing portion into which a water supply shaft of a water server is inserted is formed at the center portion. The cylindrical outer edge portion of the main body member is elastically deformed according to the shape of the cylindrical mouth portion and is fixed to the outer peripheral side of the cylindrical mouth portion with the bearing portion protruding into the cylindrical mouth portion. . When the liquid container is connected to the water server, the water supply shaft is inserted into the shaft hole opened in the top surface of the main body member and protrudes into the liquid container through the bearing portion.

JP 2011-63310 A JP 2010-89842 A

  By the way, the above-described conventional bottle cap is exposed to the main body member when the liquid container is transported or stored because the top surface or outer edge of the main body member is exposed in a state where the bottle cap is attached to the cylindrical mouth portion of the liquid container. There is a risk that dust or dirt may adhere, or foreign matter such as dust and insects may enter the liquid container (inside the bearing portion) from the shaft hole opened in the top surface of the main body member. For this reason, normally, a seal label is affixed to the top surface to close the shaft hole, and a shrink film is coated so as to cover the bottle cap (main body member) while being attached to the cylindrical mouth portion of the liquid container. The When the liquid container is connected to the water server, the seal label and the shrink film are peeled off from the bottle cap.

  Certainly, even with the configuration of the conventional bottle cap, by adding a seal label or a shrink film, it is possible to prevent contamination of the main body member described above and contamination of foreign matter from the shaft hole. However, the manufacturing cost is increased by adding a seal label or a shrink film in a later process, and usually the top surface of the main body member is not completely covered even with the shrink film. As a result, there is a problem that the quality of the contents in the liquid container is inferior to the unopened property (virgin property), such as the possibility of falsification.

  Therefore, the present invention relates to the bottle cap, which solves the above-described conventional problems, facilitates hygiene management and quality maintenance with a simple configuration, and prevents the quality of the contents in the liquid container from being tampered with. An object of the present invention is to provide a bottle cap with improved performance.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, in claim 1, in the bottle cap used by being mounted on the cylindrical mouth portion of the water container for water server, a bearing portion into which the water supply shaft of the water server is inserted is formed at the center portion, and the peripheral edge of the top surface A main body member that is press-contacted to the inner peripheral surface of the outer edge portion that is extended and fitted into the cylindrical mouth portion in a watertight state, a circular top surface in plan view , and a cylindrical shape that is continuous with the peripheral edge of the top surface Formed in a bottomed tube-like shape having a skirt portion formed thinly and a locking recess formed at a continuous portion of the top surface of the inner peripheral surface of the skirt portion, A cover member in which an outer edge portion of the main body member is closely fitted and the main body member is fitted in an internal space, and a top surface and an outer edge portion of the main body member are surrounded and assembled integrally; The cover member is integrally assembled with the body member. In eclipse state, the outer edge portion of the body member is elastically deformed to fit the shape of the opening end of the cylindrical mouth portion, and the skirt portion is fitted is crimped to the cylindrical neck portion, said body member It is formed so that it can be completely removed from the cylindrical mouth part.

According to a second aspect of the present invention, the cover member is formed such that the axial length of the skirt portion is longer than the axial length of the outer edge portion of the main body member.

According to a third aspect of the present invention, in the cover member, a concave groove extending continuously in the axial direction and the circumferential direction is formed on the outer peripheral surface of the skirt portion, and the skirt portion is broken along the concave groove. Is.

  As an effect of the present invention, hygiene management and quality maintenance can be facilitated with a simple configuration, and quality of the contents in the liquid container can be prevented from being tampered with, thereby improving unopenedness.

It is sectional drawing of the bottle cap which concerns on one Example of this invention. It is the perspective view which showed the assembly state of the bottle cap. It is sectional drawing which showed the state with which the cylindrical opening part was mounted | worn. It is sectional drawing which showed the state by which the cover member was peeled off from the bottle cap with which the cylindrical opening part was mounted | worn. It is sectional drawing which showed the state by which the water supply shaft was inserted in the shaft hole of a main body member.

  Next, modes for carrying out the invention will be described. In the following embodiment, the direction of arrow X in FIG. 1 is the vertical direction (axial direction) of the bottle cap 1.

  As shown in FIGS. 1 to 5, the bottle cap 1 of this embodiment is a cap member that is detachably attached to the cylindrical mouth portion 10 of the water container for a water server. A bearing portion 21 into which the water supply shaft 11 of the water server is inserted is formed, and the body member 2 fitted into the cylindrical mouth portion 10 in a watertight state can be fitted into and removed from the opening end of the bearing portion 21 on the liquid container side. The bottle member with a cover is configured to include an inner member 3 held by the cover member 4 and a cover member 4 or the like in which the main body member 2 is fitted into the internal space and assembled together.

  The cylindrical mouth portion 10 protrudes to one side of a liquid container (not shown) configured as a cartridge container filled with a liquid such as drinking water, and the main body member 2 is attached to the tubular mouth portion 10. In this state, the liquid container is connected to the water server (see FIG. 5). The opening end of the cylindrical mouth portion 10 is chamfered into a gentle R shape, and a protruding portion 12 that protrudes in the radial direction from the outer peripheral side is formed. The bottle cap 1 can be easily attached to the cylindrical mouth portion 10. It is configured as follows. The protrusion 12 is fitted to a mounting recess 22a formed in the main body member 2 described later in a state where the bottle cap 1 is mounted on the cylindrical mouth portion 10.

  The main body member 2 is configured by integrally forming a cylindrical bearing portion 21 formed at the center of the top surface 20 and an outer edge portion 22 formed at the periphery of the top surface 20. The bearing portion 21 includes an outer cylinder portion 23 having a circular cross section that is continuous with the top surface 20, and an inner cylinder having a circular cross section that is continuous with the top surface 20 and disposed at a radially inner position of the outer cylinder portion 23. A shaft hole 21a into which the water supply shaft 11 is inserted is formed.

  The bearing portion 21 has an inner tube portion 24 opened on the top surface 20 and an outer tube portion 23 and an inner tube portion 24 at the opening end on the liquid container side (the lower side in FIG. 1) opposite to the top surface 20. Is opened. The bearing portion 21 has the water supply shaft 11 inserted into the shaft hole 21 a from the inner tube portion 24 opened in the top surface 20, and protrudes from the open ends of the outer tube portion 23 and the inner tube portion 24. In addition, the bearing portion 21 is held at the opening end of the outer cylinder portion 23 on the liquid container side so that an inner member 3 (described later) can be fitted and removed in a watertight state, and the shaft hole 21 a is closed by the inner member 3.

  The outer cylinder portion 23 extends in a cylindrical shape from the top surface 20 along the insertion direction of the water supply shaft 11 (the arrow vertical direction in FIG. 1), and the inner peripheral surface of the opening end on the liquid container side is the inner member 3 (of the inner member 3). The water stop rib 33) is pressed. The inner member 3 inserted from the opening end on the liquid container side of the outer cylinder portion 23 is elastically deformed (the water stop 33 rib) is elastically deformed by being pressed against the inner peripheral surface of the opening end on the liquid container side. 23 is fitted in a watertight state to the open end of the liquid container 23 (see FIG. 2 and the like). Thus, in the bearing portion 21 of the present embodiment, the inner member 3 is held water-stopped by the outer tube portion 23.

  The outer cylinder portion 23 is continuous with a peripheral wall portion extending outwardly from the outer peripheral surface of the opening end on the liquid container side, and is continued with a peripheral flange 26 described later via the peripheral wall portion. By forming the peripheral wall portion in this way, a concave groove is formed on the top surface 20 toward the liquid container along the circumferential direction.

  The inner cylinder portion 24 extends in a cylindrical shape from the top surface 20 along the insertion direction of the water supply shaft 11, and is a water blocking rib that is in pressure contact with the outer peripheral surface of the water supply shaft 11 on the inner peripheral surface of the opening end on the liquid container side. 24a is formed. The water stop rib 24a is pressed into contact with the water supply shaft 11 inserted into the inner space of the inner cylinder portion 24 (see FIG. 5), so that the opening end on the liquid container side is elastically deformed in the diameter increasing direction, and the inner cylinder portion 24 And the outer peripheral surface of the water supply shaft 11 are pressure-bonded in a watertight state. Thus, in the bearing portion 21 of the present embodiment, the water supply shaft 11 is held water-stopped by the inner cylinder portion 24.

  In the bearing portion 21 of the present embodiment, the inner cylindrical portion 24 is disposed at a radially inner position of the outer cylindrical portion 23, so that a double cylindrical structure is formed by the outer cylindrical portion 23 and the inner cylindrical portion 24. The opening end on the liquid container side of the inner cylinder part 24 is formed so as not to protrude from the opening end of the outer cylinder part 23, and the outer cylinder part 23 and the inner cylinder part 24 are spaced apart from each other in the radial direction. Is formed.

  The outer edge portion 22 extends from the peripheral edge of the top surface 20 along the insertion direction of the water supply shaft 11, and a mounting recess 22 a in which the protruding portion 12 of the cylindrical mouth portion 10 is fitted to the inner peripheral surface is provided in the circumferential direction. Are formed along. Further, the outer edge portion 22 is formed with a stepped portion 22b that is engaged with a tool (for example, a decapper or the like) for removing the main body member 2 from the cylindrical mouth portion 10 on the outer peripheral surface. The step portion 22b is formed along the circumferential direction as a notch-shaped step having a downward horizontal surface.

  Between the bearing portion 21 and the outer edge portion 22, a peripheral flange 26 is erected along the insertion direction of the water supply shaft 11 from the top surface 20, and a locking rib 26 a is circumferentially provided on the outer peripheral surface of the peripheral flange 26. It is formed along.

  In a state where the main body member 2 is mounted on the cylindrical mouth portion 10 (see FIGS. 3 and 4), the opening end (projection portion 12) of the cylindrical mouth portion 10 is formed between the inner peripheral surface of the outer edge portion 22 and the peripheral flange 26. It is inserted away from the outer peripheral surface and is fitted into the mounting recess 22a. At that time, the outer edge portion 22 is elastically deformed according to the shape of the opening end (projection portion 12) of the cylindrical mouth portion 10, and the water stop rib 26 a is pressed against the inner peripheral surface of the cylindrical mouth portion 10. Thus, the cylindrical mouth portion 10 is sandwiched between the inner peripheral surface of the outer edge portion 22 and the outer peripheral surface of the peripheral edge 26, and the main body member 2 is fitted into the cylindrical mouth portion 10 in a watertight state.

  The inner member 3 is detachably held in a watertight manner so as to close the liquid container side opening end of the outer cylindrical portion 23 of the bearing portion 21, and specifically, the outer periphery of the bottomed cylindrical main body portion 30. The outer peripheral wall 30a is formed in the outer peripheral wall 30a, and the water stop rib 33 is extended on the outer peripheral surface of the outer peripheral wall 30a along the circumferential direction. The main body portion 30 is opened toward the inner direction of the bearing portion 21, and the opening end is bent inward in the radial direction so as to be engageable with a concave portion formed at the tip of the water supply shaft 11. . Further, as described above, the water blocking rib 33 is pressed against the inner peripheral surface of the outer cylindrical portion 23 in a state where the inner member 3 is held at the opening end of the outer cylindrical portion 23 on the liquid container side.

  The cover member 4 is attached to the cylindrical mouth portion 10 in a state where the main body member 2 is integrally assembled, and is formed so as to be completely removable from the cylindrical mouth portion 10 while leaving the main body member 2. Specifically, a top surface 40 having a circular shape in plan view, and a skirt portion 41 and the like that are formed continuously with the periphery of the top surface 40 and are thinly formed in a cylindrical shape having a circular cross section are integrally formed to form a ceiling tube shape. ing.

  The top surface 40 is formed in a circular shape in plan view, and is formed so that at least the diameter is larger than the diameter of the top surface 20 of the main body member 2 that is also formed in a circular shape in plan view. In a state where the main body member 2 and the cover member 4 are integrally assembled (see FIG. 1), the water supply shaft insertion side (upper side in FIG. 1) of the top surface 20 of the main body member 2 is completely covered with the top surface 40. Thus, the shaft hole 21a of the water supply shaft 11 opened in the main body member 2 is closed.

  As for the skirt part 41, the latching recessed part 41a with which the main body member 2 (outer edge part 22) is fitted is formed in the circumferential direction at the corner location which is a continuous location with the top | upper surface 40 on the inner peripheral surface. . In the bottle cap 1 of this embodiment, the main body member 2 is inserted into the inner space from the lower opening end of the skirt portion 41 of the cover member 4, and the outer edge portion 22 of the main body member 2 is in close contact with the locking recess 41 a of the skirt member 4. By fitting, the main body member 2 is integrally assembled to the cover member 4 (see FIG. 2 and the like).

  The skirt portion 41 has an axial length L1 from the top surface 40 to the opening end on the liquid container side, and an axial length L2 from the top surface 20 of the outer edge portion 22 of the main body member 2 to the opening end on the liquid container side. Also, the opening end of the outer edge portion 22 does not protrude from the opening end on the liquid container side (see FIG. 1 and the like). In a state where the main body member 2 and the cover member 4 are assembled together (see FIG. 1 and the like), the outer side in the radial direction of the outer edge portion 22 is completely covered with the skirt portion 41, and the cover member 4 covers the main body member 2. The water supply shaft insertion side of the top surface 20 and the radially outer side of the outer edge portion 22 are surrounded.

  In addition, the skirt portion 41 is formed with one concave groove 41b extending continuously in the axial direction and the circumferential direction on the outer peripheral surface. The concave groove 41b extends while curving from the open end of the skirt portion 41 toward the top surface 40, and is formed so as to extend in the circumferential direction at the midway portion and extend over substantially the entire circumference. Is done. A tongue-shaped grip piece 42 is formed at the edge of the open end of the skirt portion 41, and the grip piece 42 is pulled up in the direction of the top surface 40, whereby the skirt portion 41 is broken along the concave groove 41b. The

  Next, with reference to FIG. 3 to FIG. 5, the operation when connecting the liquid container with the bottle cap 1 attached to the water server will be described in detail below.

  First, the bottle cap 1 in which the main body member 2 and the cover member 4 are integrally assembled in advance is attached to the opening end (protrusion portion 12) of the cylindrical mouth portion 10 before being connected to the water server. . That is, the main body member 2 is fitted in a watertight state on the outer peripheral side of the cylindrical mouth portion 10 with the bearing portion 21 protruding into the cylindrical mouth portion 10, and the main body member 2 is completely covered from above. The cover member 4 is fixed to the cylindrical mouth portion 10 (see FIG. 3). In this state, the cover member 4 has the skirt portion 41 crimped to the outer peripheral surface of the cylindrical mouth portion 10.

  When connecting the liquid container to the water server, first, in the cover member 4, the gripping piece 42 is pulled up and the skirt portion 41 is broken along the concave groove 41b. The cover member 4 is completely peeled off from the opening 10 (see FIG. 4). In such a state, the top surface 20 and the outer edge portion 22 are exposed while the main body member 2 remains fitted to the cylindrical mouth portion 10 in a watertight state.

  Next, the liquid container is moved downward from above the water server, and the water supply shaft 11 is inserted into the inner cylinder portion 24 through the shaft hole 21 a exposed on the top surface 20 of the main body member 2. The water supply shaft 11 inserted into the inner cylinder portion 24 is pressed against the water stop rib 24a while elastically deforming the opening end of the inner cylinder portion 24 on the liquid container side in the diameter increasing direction, and the outer peripheral surface is watertight with the inner cylinder portion 24. It is inserted in a state where it is crimped. And if the front-end | tip part of the water supply axis | shaft 11 contact | abuts to the inner member 3 fitted to the opening end of the outer cylinder part 23 in the watertight state, the inner member 3 will be with respect to the outer cylinder part 23 with a downward movement of a liquid container. While pushing up, the tip of the water supply shaft 11 is inserted into the opening end of the inner member 3 so that the water supply shaft 11 and the inner member 3 are integrated, and eventually the liquid container side of the outer cylinder portion 23 and the inner cylinder portion 24 The water supply shaft 11 is protruded from the opening end (see FIG. 5).

  As described above, the bottle cap 1 of the present embodiment is a bearing in which the water supply shaft 11 of the water server is inserted in the center of the bottle cap 1 used by being mounted on the cylindrical mouth portion 10 of the liquid container for water server. A body member 2 that is formed with a portion 21 and is fitted into the cylindrical mouth portion 10 in a watertight manner, and a cover member 4 that is fitted into the internal space and assembled together. The cover member 4 is attached to the cylindrical mouth portion 10 in a state in which the main body member 2 is integrally assembled, and is formed so as to be completely removable from the cylindrical mouth portion 10 leaving the main body member 2. The structure facilitates hygiene management and quality maintenance, and prevents the quality of the contents in the liquid container from being tampered with, thereby improving the unopened property.

  That is, it is configured as a bottle cap with a cover in which the main body member 2 is integrally assembled in the inner space of the lenticular cylindrical cover member 4, and is attached to the cylindrical mouth portion 10 in a state where the main body member 2 is integrally assembled. Then, by leaving the main body member 2 so as to be completely removable from the cylindrical mouth portion 10, hygiene management when transporting and storing the liquid container, and a shaft hole opened in the top surface 20 of the main body member 2 From 21a, it becomes easy to maintain the quality by preventing foreign matters from being mixed with dust, insects and the like, and the quality of the contents in the liquid container can be surely prevented, so that the unopenability can be improved. Further, since a seal label and a shrink film are not required as in the case of a conventional bottle cap, the manufacturing cost can be reduced with a simple configuration compared to the conventional configuration.

  In particular, the cover member 4 is formed in a cylindrical shape having a top surface 40 having a circular shape in plan view and a cylindrical skirt portion 41 continuous with the periphery of the top surface 40, and the body member 2 is Since the top surface 20 and the outer edge portion 22 of the main body member 2 are enclosed in the assembled state, the top surface 20 and the outer edge portion of the main body member 2 are covered by the cover member 4 while being attached to the cylindrical mouth portion 10 of the liquid container. Since 22 is not exposed, sanitary management and quality maintenance can be further improved by completely covering the main body member 2 with the cover member 4.

  Further, since the cover member 4 is formed such that the axial length L1 of the skirt portion 41 is longer than the axial length L2 of the outer edge portion 22 of the main body member 2, the cover member 4 is formed in the cylindrical mouth portion 10 of the liquid container. In the mounted state, the skirt portion 41 covers not only the outer edge portion 22 but also a part of the outer peripheral surface of the cylindrical mouth portion 10, so that hygiene management and quality maintenance can be further improved.

  Further, the cover member 4 has a concave groove 41b extending continuously in the axial direction and the circumferential direction on the outer peripheral surface of the skirt portion 41, and the skirt portion 41 is broken along the concave groove 41b. Only the member 4 can be easily detached from the cylindrical mouth portion 11.

  In addition, as a structure of the bottle cap 1, it is not limited to the Example mentioned above, A various change is possible unless it deviates from the objective of this invention.

  That is, in the bottle cap 1 of the above-described embodiment, the main body member 2 is integrally assembled to the cover member 4 by closely fitting the outer edge portion 22 of the main body member 2 to the locking recess 41 a of the cover member 4. However, the assembly structure of the main body member 2 and the cover member is not limited to this, and any structure may be used as long as the main body member 2 is inserted into the internal space from the lower opening end of the cover member 4.

  In the above-described embodiment, the configuration in which one concave groove 41 b extending continuously in the axial direction and the circumferential direction is formed on the outer peripheral surface of the cover member 4 is described. However, the concave groove portion 41 b in the cover member 4 is described. The configuration of is not limited to this, for example, the top surface along the concave groove 41b, for example, whether the concave groove 41b extends to the top surface 40 or is formed of two or more concave grooves. 41 or the skirt portion 41 may be broken so long as the cover member 4 can be easily peeled off while leaving the main body member 2.

DESCRIPTION OF SYMBOLS 1 Bottle cap 2 Main body member 3 Inner member 10 Cylindrical mouth part 11 Water supply shaft 12 Protrusion part 20 Top surface 21 Bearing part 22 Outer edge part 22a Mounting recessed part 23 Outer cylinder part 24 Inner cylinder part 24a Water stop rib 26 Peripheral collar 26a Water stop Rib 30 Body 33 Water-stop rib 40 Top 41 Skirt 41a Locking recess 41b Groove 42 Holding piece

Claims (3)

In the bottle cap that is used by being attached to the cylindrical mouth of the liquid container for water server,
The main body is formed with a bearing portion into which the water supply shaft of the water server is inserted at the center, and the inner peripheral surface of the outer edge portion extending from the peripheral edge of the top surface is pressed into contact with the cylindrical mouth portion in a watertight state. Members,
A top surface having a circular shape in plan view, a skirt portion that is continuous with the peripheral edge of the top surface and formed thin in a cylindrical shape, and a locking recess formed at a continuous location with the top surface of the inner peripheral surface of the skirt portion; The outer edge portion of the main body member is closely fitted to the locking recess and the main body member is fitted into the inner space, and the top surface and the outer edge of the main body member are formed. A cover member whose part is enclosed and assembled together;
Comprising
The cover member is elastically deformed in accordance with the shape of the opening end of the cylindrical mouth portion, and the skirt portion is the cylindrical mouth in a state where the body member is assembled integrally. It is crimped and attached to the part, and is formed so as to be completely removable from the cylindrical mouth part, leaving the body member.
A bottle cap characterized by that.   The bottle cap according to claim 1, wherein the cover member is formed such that an axial length of the skirt portion is longer than an axial length of an outer edge portion of the main body member.   2. The cover member according to claim 1, wherein a concave groove extending continuously in an axial direction and a circumferential direction is formed on an outer peripheral surface of the skirt portion, and the skirt portion is broken along the concave groove. 2. The bottle cap according to 2.

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