JP2014000976A - Cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap free from troubles such as coming off of a lid body from a cap body by an inner pressure when washing and cooling by a warm water shower.SOLUTION: A cap which is entirely made of synthetic resin includes: a cap body A1 which is made by erecting a pouring cylinder 13 on the central part of a top plate 11 extended from the upper end of a fitting cylinder 10 fixed to the outer periphery of a container body neck part 100, making the top plate 11 in the pouring cylinder 13 removable, and erecting a circular engaging protrusion 20 on the outer periphery of the pouring cylinder 13; and a lid body A2 which is made by recessedly forming in a circular form an engaging part 34 to fittingly seal the upper surface and outer peripheral surface of the engaging protrusion 20 of the cap body A1, on the inner peripheral lower end part of a peripheral wall 30, and extending a top wall 31 from the upper end of the peripheral wall 30. The top plate 11 in the pouring cylinder 13 is formed thin so as to be deformable.

Description

  The present invention relates to a cap, and more particularly, to a cap including a cap body that is fitted and fixed to a container body, and a lid body that is hinged to the cap body so as to be opened and closed.

  A cap provided with the cap body and the lid, and the container body filled with the stored liquid heated for sterilization is sterilized inside the container body by filling the cap after filling the stored liquid, and then the container Washing and cooling with a hot water shower from outside the body has been conventionally performed.

  In such a cap, when the cap is struck, the lid body is lowered with respect to the cap body by pressing from above, and the lid body is deformed to form an air ventilation path from the inside of the cap to the outside. The air is discharged out of the cap, and when the cap is completely stoppered, the air flow path from the inside of the cap to the outside is blocked by raising the lid with respect to the cap body with the restoring force of the lid, There has also been proposed a cap in which the inside of the cap has a slightly negative pressure. (For example, see Patent Document 1)

  The cap main body in the cap described in Patent Document 1 includes a pouring tube and an engaging tube portion that is fitted to the container body neck and neck portion. A lid engaging portion provided with a protruding portion is protruded, and the lid body includes a top wall, an inner cylinder, and a peripheral wall, and an upper end of the lid engaging portion of the cap body is provided on the inner periphery of the lower end of the peripheral wall. An engaging portion formed from an upper inner surface and a side inner surface that engage with the outer periphery is provided, and engages with a lower peripheral surface of the bulging portion of the lid engaging portion below the side inner surface of the engaging portion. An engagement protrusion is provided.

JP 2007-099317 A

  The above-mentioned cap is excellent in that the internal pressure rise in the lid for sterilization can be reduced, but the lid is cooled gradually during the hot water shower, but the lid is still at a high temperature. Therefore, there is a concern that the lid body may come off from the cap body.

  The present invention has been made in view of the above points, and proposes a cap that does not cause any inconvenience such as the lid being detached from the cap body by internal pressure during washing or cooling with a hot water shower.

  The first means is configured as follows. That is, the pouring cylinder 13 is erected at the center of the top plate 11 extending from the upper end of the mounting cylinder 10 fitted to the outer periphery of the container body neck portion 100, and the top plate 11 in the pouring cylinder 13 can be removed. The peripheral wall 30 includes a cap main body A1 in which an annular locking protrusion 20 is erected on the outer periphery of the dispensing cylinder 13 and an engagement portion 34 that fits and seals the outer peripheral surface of the locking protrusion 20 of the cap main body A1. And a lid A2 formed by extending the top wall 31 from the upper end of the peripheral wall 30 and is formed entirely of a synthetic resin. The top plate 11 was formed into a thin wall that can be deformed.

  The second means is configured as follows. That is, in the first means, an air passage is formed which communicates the inside and outside of the lid A2 when the container body B is plugged, and the air passage caps the lid A2 when the container body B is stoppered. It is made to communicate with the main body A1 by lowering it relative to the main body A1 and deforming the seal portion between the locking projection 20 and the engaging portion 34.

  The third means was configured as follows. That is, in the first means or the second means, an annular easy-to-cut portion 15 is recessed along the lower end portion of the inner periphery of the pouring tube 13, and the top plate 11 inside the easy-to-cut portion 15 is provided. The pull ring 16 is erected so that the top plate 11 in the extraction tube 13 can be removed, and the inner top plate 11 of the easy-cut portion 15 is formed in a thin wall that can be deformed.

  According to the present invention, the pouring tube 13 is erected at the center of the top plate 11 extending from the upper end of the mounting tube 10 fitted to the outer periphery of the container body neck portion 100, and the top plate 11 in the pouring tube 13 is removed. A cap main body A1 that is configured to be configured and has an annular locking projection 20 standing on the outer periphery of the dispensing cylinder 13, and an engagement portion 34 that fits and seals the outer peripheral surface of the locking projection 20 of the cap main body A1. And a lid A2 formed by recessing the lower end of the inner periphery of the peripheral wall 30 and extending the top wall 31 from the upper end of the peripheral wall 30. Since the top plate 11 in the outlet tube 13 is formed in a thin wall that can be deformed, the container body B filled with the accommodated liquid heated for sterilization is stoppered, and then washed and cooled by a hot water shower or the like. At this time, the increase in internal pressure due to the high temperature in the lid A2 is mitigated by the deformation of the top plate 11, and the lid A2 is The disadvantage of such out of the-up body A1 can be prevented.

  An air passage that communicates between the inside and outside of the lid A2 is formed when the container body B is plugged, and the air passage is lowered by locking the lid A2 relative to the cap body A1 when the container body B is stoppered. When the seal portion between the protrusion 20 and the engaging portion 34 is communicated by deforming it, when the cap A is plugged after filling the container B with the stored liquid heated for sterilization, heating is performed. The air in the lid body A2 whose internal pressure has been increased can be discharged to the outside through the ventilation path, and the temperature in the lid body A2 during cooling by the hot water shower can be further lowered, and the deformation of the top plate 11 thereafter This contributes to preventing the lid A2 from coming off from the cap body A1.

  An annular easy cutting portion 15 is recessed along the inner peripheral lower end portion of the extraction tube 13, and a pull ring 16 is erected on the top plate 11 inside the easy cutting portion 15 to connect the top plate 11 in the extraction tube 13. When it is configured to be removable and the top plate 11 on the inner side of the easy-to-cut section 15 is formed in a thin wall that can be deformed, the top plate 11 can be deformed in a substantially wide area in the dispensing tube 13. The capacity deformation in the lid A2 can be further increased.

It is a longitudinal cross-sectional view of a cap. (First embodiment) It is a top view of the open state of a cap. (First embodiment)

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows a first embodiment of the cap. The cap A is formed integrally with a synthetic resin by connecting a cap body A1 and a lid A2 by a hinge 50. For convenience of explanation, the left side in FIG. 1 will be described as the front part, the right side as the rear part, the near side as the right part, and the back part as the left part. Other figures are similar to this.

  The cap body A1 has a top-bottomed cylindrical shape with a top plate 11 extending from the top edge of the mounting cylinder 10, and the mounting cylinder 10 is fitted to the outer periphery of the mouth neck portion 100 of the container body B. The seal cylinder 12 suspended from the peripheral edge of the back surface of the mouth and neck is tightly fitted to the upper end of the inner periphery of the mouth-and-neck portion 100 and attached to the container body B. The mounting cylinder 10 of the cap main body A1 in the present invention is not limited to the single cylinder type as shown in the illustrated example, and a double cylinder mounting cylinder 10 including an inner cylinder and an outer cylinder may be adopted. Is possible. In that case, for example, a top plate is extended from the upper end of the inner cylinder fitted to the outer periphery of the neck and neck, and the rear upper end of the outer cylinder standing in a double cylinder shape via a flange protruding from the lower end of the inner cylinder A configuration in which the rear lower end of the lid body is rotatably connected via a hinge can be employed.

  A pour tube 13 is erected at the center of the top surface of the top plate 11. A pair of projecting ridges 14 are provided on the left and right inner surfaces of the extraction tube 13 respectively. The top plate 11 in the pour tube 13 is provided with a thin easily cut portion 15 in a ring shape along the lower end portion of the inner periphery of the pour tube 13. Further, a pull ring 16 is erected on the top surface of the top plate 11 in the easy-cut portion 15 via a support column, and in use, the easy-cut portion 15 is cut and poured out by holding the pull ring 16 and pulling it up. The top plate 11 in the cylinder 13 is opened to allow the liquid in the container body B to be poured out.

  In the present invention, the top plate 11a in the dispensing cylinder is formed to be thin and deformable. Specifically, it is formed into a thin wall that can be deformed in the elevated internal pressure state in the cap at the time of hot water shower injection for cooling the heated storage liquid for sterilization. The thickness of the top plate 11a in the dispensing cylinder corresponds to the internal pressure at that temperature for the temperature in the cap that rises corresponding to the temperature during general heat sterilization and the temperature of the hot water shower for cooling and washing. Thus, a thickness that can be deformed is selected. Accordingly, various specific thicknesses can be selected, and examples include, but are not limited to, a thickness of about 0.1 mm to 1.0 mm.

  An annular locking projection 20 is erected on the peripheral edge of the top surface of the top plate 11 outside the pouring cylinder 13. The locking protrusion 20 has a locking protrusion 21 formed in an annular shape on the outer periphery. The locking projection 20 serves to lock the lid A2 and seals the inside and outside of the lid A2 with the peripheral wall of the lid A2. Further, an air passage that communicates with the cap A when the cap A is plugged is formed by an engaging portion described later of the lid A2.

  On the top surface of the top plate 11 on the outer periphery of the locking projection 20, a convex portion 22 for forming a gap is provided to project, and the upper surface peripheral portion of the cap body A 1 and the lower surface of the peripheral wall 30 of the lid A 2 at a position facing the peripheral portion A gap d that constitutes a part of the air passage is formed therebetween. As shown in FIG. 2, the gap-forming convex portions 22 are projected at seven locations at equal intervals, and each has a planar viewing angle shape. In addition, this convex part 22 for gap formation is not limited to the case of being provided on the upper surface of the cap body A1, but can also be provided on the lower surface of the peripheral wall 30 of the lid A2.

  The lid A2 has a cylindrical shape with a lower end opening in which the top wall 31 extends from the upper end edge of the peripheral wall 30, and the hinge 50 connects the rear lower end of the peripheral wall 30 and the rear upper end of the mounting cylinder 10 of the cap body A1. It is connected via a via.

  From the central part of the back surface of the top wall 31 of the lid A2, a seal cylinder part 32 fitted to the extraction cylinder 13 is suspended. The lower end of the seal cylinder 32 is airtightly fitted to the upper end of the inner periphery of the extraction cylinder 13. The seal cylinder portion 32 is fitted so that the lower end is positioned slightly above the upper end of each protrusion 14 of the dispensing cylinder 13, and when the cap A is plugged into the container body B, the seal cylinder portion 32 is fitted to the cap main body A 1. Thus, the lid A2 is lowered, and the seal cylinder part 32 rides on each protrusion 14, and is configured to communicate between the inside and outside of the extraction cylinder 13.

  Further, an engaging portion 34 is provided at the lower end portion of the inner periphery of the peripheral wall 30. The engaging portion 34 is for fitting and sealing the outer peripheral surface of the locking projection 20 of the cap body A1, and has a top surface in the form of a downward stepped portion that comes into contact with and engages with the upper surface of the locking projection 20. The ring-shaped recessed part provided with the peripheral surface fitted to the outer peripheral surface of the latching protrusion 20 is made | formed. In the illustrated example, the engaging portion 34 is provided with an engaging protrusion 38 in an annular shape at the lower part of the inner periphery. When the cover is closed, the engaging protrusion 38 is moved over and engaged with the lower surface of the locking protrusion 21. These portions are hermetically sealed together, and the top surface is in contact with the upper surface of the locking projection 20. As described above, the top surface of the engaging portion 34 is in contact with and fitted to the top surface of the locking projection 20. The top surface is provided with a radial concave groove 35 that communicates inside and outside. Thus, the inside and outside of the air can be ventilated at the portion where the concave groove 35 is formed. Further, a projection 37 for hooking a finger is projected from the lower front portion of the peripheral wall 30 to the front. The radial concave grooves 35 can be recessed on the upper surface of the locking protrusion 20 instead of the top surface of the engaging portion 34.

  The cap A configured as described above is, for example, plugged into the container body B filled with the stored liquid heated for sterilization from above. At that time, the lid A2 is in a normal state with respect to the cap main body A1 which is fixed by fitting the mounting cylinder 10 on the outer periphery of the mouth-neck part 100 and fitting the seal cylinder 12 on the inner peripheral upper end of the mouth-neck part 100. It will be in the state which changed to the lower part, and seal cylinder part 32 will run on each ridge 14, and the inside and outside of extraction pipe 13 will communicate. Further, the engaging portion 34 is shifted outward and downward with respect to the locking protrusion 20, and a gap is formed and communicated therethrough through the concave groove 35, and the upper peripheral edge portion of the cap main body A 1 and the lid peripheral wall 30. An air passage communicating between the inside and the outside is communicated through a gap d with the lower end, and as a result, the air in the cap A whose internal pressure has been increased by heating is discharged to the outside through the air passage.

  Next, the lid A2 is raised and restored to the normal state by the elastic restoring force of the lid A2, and the locking projection 20 and the engaging portion 34 are properly fitted to seal the inside and outside. Next, the container is washed and cooled by a hot water shower. At this time, even if the rising internal pressure remains in the lid A2, the top plate 11a in the dispensing cylinder is deformed downward as shown by the two-dot chain line in FIG. 1 to alleviate the increase in internal pressure. As a result, the lid A2 It does not come off from the cap body A1.

A: Cap A1: Cap main body 10 ... installation cylinder, 11 ... top plate, 11a ... top plate in the extraction cylinder, 12 ... seal cylinder, 13 ... extraction cylinder,
14 ... Projection, 15 ... Easy cutting part, 16 ... Pull ring, 20 ... Locking protrusion, 21 ... Locking protrusion,
22 ... convex part for gap formation, d ... gap A2: lid 30 ... peripheral wall, 31 ... top wall, 32 ... seal cylinder part, 34 ... engagement part, 35 ... concave groove,
37 ... Projection for hooking, 38 ... Engagement ridge 50 ... Hinge B: Container body 100 ... Mouth and neck

Claims (3)

  A pouring tube (13) is erected at the center of the top plate (11) extending from the upper end of the mounting tube (10) fitted to the outer periphery of the container body neck (100). A cap main body (A1) which is configured such that the top plate (11) can be removed and an annular locking protrusion (20) is erected on the outer periphery of the dispensing tube (13), and a locking protrusion of the cap main body (A1) An engaging portion (34) that fits and seals the outer peripheral surface of the portion (20) is annularly recessed at the inner peripheral lower end of the peripheral wall (30), and the top wall (31) extends from the upper end of the peripheral wall (30). The cap (A2) is provided, and the cap is formed entirely of synthetic resin, and the top plate (11) in the dispensing tube (13) is formed in a thin wall that can be deformed. To cap.   An air passage that communicates the inside and outside of the lid body (A2) is formed when the container body (B) is plugged, and the air passageway connects the lid body (A2) to the cap body (A1) when the container body (B) is plugged. The cap according to claim 1, wherein the cap is communicated by lowering the seal portion between the engaging protrusion (20) and the engaging portion (34).   An annular easily cut portion (15) is recessed along the inner peripheral lower end of the extraction tube (13), and a pull ring (16) is erected on the top plate (11) inside the easily cut portion (15). The top plate (11) in the dispensing cylinder (13) is configured to be removable, and the top plate (11) on the inner side of the easily cut portion (15) is formed into a thin wall that can be deformed. Cap as described in.