JP5007749B2 - Beverage container - Google Patents

Description

The present invention relates to a beverage container, such as a portable magic products metal double insulation structure.

  Conventionally, in this type of beverage container plug body in which a lid body is provided so as to be detachable in a spout, a drinking mouth, etc. of the plug body on the side of the container body, it is in close contact with the inside of the top surface of the lid body There is known a lid packing that is mounted to stop the opening, and the lid is screwed to the stopper via a single screw (for example, Patent Document 1).

  Moreover, what provided the lid packing which is mounted | worn through the sealed hollow part inside the top | upper surface of a cover body and water-stops an opening part is also known (for example, patent document 2).

JP 2002-68267 A JP 2007-30992 A

  In the former prior art, since the lid packing does not have a hollow part, it has a water-stop structure with only the lid packing elasticity, and the tightening operation is performed because the torque increases rapidly when the lid of the plug is tightened. It is difficult, and when it is loosened a little, the water stoppage is lowered.

  In the latter prior art, the hollow part is provided, but since the hollow part is always a sealed space, it is stored for a long time with the lid tightened or when it falls in an inverted state and instantaneously stops Is further pressed, the lid packing hollow portion is brought into close contact with the lid body, the internal pressure is reduced, the hollow portion is crushed and deformed, and the force for elastically pressing the water-stopping surface of the lid packing is reduced, thereby reducing the water-stopping property. Further, even if the lid is opened and closed again, the hollow portion of the lid packing remains crushed and deformed, so that the water stoppage always remains lowered unless the decompressed state of the hollow portion is released.

  In addition, in the conventional single-threaded screw lid attachment / detachment structure, if the lid is twisted and opened and closed in about half a circle, the hooking margin in the circumferential direction of the screw is reduced, so that the lid is not detached due to dropping or pulling. Concerned. When the hooking margin in the circumferential direction of the screw is increased (for example, about one turn), an operation of opening and closing the lid by turning it twice or more is required, and operability is not simple. In addition, if a multi-threaded screw structure that can be opened and closed in about half a turn by twisting the lid to secure a sufficient allowance in the circumferential direction of the screw is used, the torque will increase drastically. An increase becomes a problem, and the tightening operation is hindered.

  The problem to be solved is to prevent the lid packing from sticking or being crushed and deformed due to dropping or long-term storage. In addition, by preventing a sudden increase in torque when the lid is tightened, it is possible to prevent loosening and leakage due to insufficient tightening. Furthermore, it is possible to open and close the lid by an opening and closing operation of about a half turn of one twist, and to improve operability with a structure that can perform a sufficient tightening operation.

The invention according to claim 1, and a plug body which is detachably attached to the first opening of the container body, and a second opening protruding to the top of said closure body cylindrical, said second threaded into the opening a lid removably attached by fitting, Oite the beverage container with a lid gasket for water stopping the second opening is attached to the lid body, said lid packing of the second opening and stopping the horizontal plane, by Rukoto provided sidewalls disposed projecting upward from the peripheral edge of該止horizontal plane at an inner wall with a gap of said lid, and said locking horizontal plane of the lid gasket and lid top inside wherein the hollow portion is formed to be surrounded by the side wall, the side wall of the stop horizontal edge of the lid gasket, characterized in that communication unit for ventilation for connecting the gap between the hollow portion is provided it is a beverage container.

  According to the invention of claim 1, by providing the hollow portion between the lid packing and the lid body, the torque change during the lid body tightening becomes gradual, and the tightening operation is firmly performed until the lid packing is sufficiently crushed. Therefore, the operability is improved.

It is sectional drawing before the fastening which shows Example 1 of this invention. It is sectional drawing at the time of the fastening. It is the same exploded perspective view. It is the same perspective view. It is an expansion explanatory view of the second male screw and the second female screw. It is a perspective view which shows Example 2 of this invention.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

1 to 5 show a first real 施例 of the present invention, a beverage container, the synthetic resin made of stainless steel of the container body 1 of the heat insulating structure is detachably mounted on the upper part of the container main body 1 It is comprised with the plug body 2 made from. The container body 1 is formed by integrally joining the upper ends of the inner container 3 and the outer container 4 to provide a first opening 5, and a heat insulating part 6 having a vacuum heat insulating structure is provided between the inner container 3 and the outer container 4. Have. In the outer container 4, a first male screw portion 8 is formed on the outer peripheral wall above the outer shoulder portion 7.

  The plug body 2 is a cylindrical body in which a first female thread portion 9 is detachably provided on a first male thread portion 8 of the container body 1 so that the upper portion projects upward from the first opening 5 of the container body 1. 10 and a synthetic resin lid body 12 that is detachably provided on the upper portion of the cylindrical body 10 and opens and closes the second opening 11 that forms the spout or drinking port of the cylindrical body 10. Yes.

  The cylindrical body 10 includes a barrel portion 13 having a first female screw portion 9 that is screwed into the first male screw portion 8 of the outer container 4, and a first portion of the container body 1 that is continuous with the upper portion of the barrel portion 13. The shoulder portion 14 protrudes upward from the opening portion 5 and the cylindrical neck-like second opening portion 11 continuing to the upper portion of the shoulder portion 14. The shoulder portion 14 is formed in a shape whose diameter is narrowed down. A ring packing 15 is interposed between the first opening 5 and the inside of the shoulder 14.

  A second male screw 16 is formed on the outer periphery of the cylindrical body 10 so as to be coaxial with the second opening 11.

  The lid body 12 has a peripheral wall 17 and a top surface 18, and is formed in a hollow cylindrical shape having a circular third opening 19 on the lower side. On the outside, a plane made of a non-slip member such as an elastomer is a regular polygonal shape, and in the embodiment, a square-shaped knob 20 is fitted. A second female screw 21 that is screwed into the second male screw 16 is formed at the lower part of the inner periphery of the peripheral wall 17, and the upper part of the inner periphery of the peripheral wall 17 and the second opening 11 are coaxial. A first gap 22 is formed between the two. In addition, a string-like flexible connecting member 23 connected to the plug body 2 is formed at the lower outer periphery of the peripheral wall 17. The base end 24 of the connecting member 23 is rotatably connected to the body portion 13, and the distal end 25 of the connecting member 23 has a ring shape that can be coaxial with the second opening 11. The outer periphery of the peripheral wall 17 is rotatably fitted inside the ring-shaped tip 25.

  The top surface 18 is formed with a planar circular through-hole 26 penetrating in the vertical direction at the center and a cylindrical flange 27 surrounding the lower peripheral surface of the lower portion of the through-hole 26. On the horizontal inner side of the top surface 18, a flexible and elastic lid packing 28 that covers the entire upper end of the second opening 11 of the cylinder 10 is provided. The lid packing 28 includes a disk portion 29 having a circular plane coaxial with the second opening 11, and a solid cylindrical shape protruding from the center upper surface of the disk portion 29 and fitted into the through hole 26. And an attachment portion 30. The disk portion 29 is located below the lower end of the through hole 26 in the center, and is inserted slightly into the second opening portion 11 from the upper end of the second opening portion 11, and the upper end of the second opening portion 11 The horizontal ring-shaped water stop water plane 32, which is a water stop surface that can come into contact with water tightly when the lid is closed, is connected to the outer periphery of the inner disk portion 31 and the inner periphery of the water stop water plane 32 of the second opening 11. And an intermediate ring portion 33 facing upward toward the outside.

  In FIG. 1, the inner diameter A of the water stop water plane 32 of the second opening 11 is formed smaller than the inner diameter B of the second opening 11, and the outer diameter C of the water stop water plane 32 of the second opening 11 is the first. It is formed larger than the outer diameter D of the second opening 11. Further, a side wall 34 is connected in a planar ring shape upward from the outer periphery of the still water horizontal plane 32, and the upper end of the side wall 34 can be brought into contact with the inside of the top surface 18, and the outer periphery of the side wall 34 and the peripheral wall A ventilation gap 35 that is in communication with the first gap 22 and narrower than the first gap 22 is formed between the inner side of the first gap 22.

  Further, a hollow portion 36 is formed in which the inner side of the top surface 18 is spaced below and the water-stop horizontal plane 32 of the second opening 11 is spaced apart, the outer side is surrounded by the side wall 34, and the inner side is surrounded by the flange portion 27. . Further, the inside of the hollow portion 36 and the communication gap 35 are formed by a ventilation notch 37 which is a communication portion. The ventilation notches 37 are notched in an arc shape upward from the middle to the upper side of the side wall 34, and are formed on the left and right sides of the side wall 34. Therefore, as shown in FIG. 1, the hollow portion 36 communicates with the first gap 22 and the ventilation gap 35 through the notch 37 before the lid 12 is attached.

  Further, as shown in FIG. 1, when no external force is applied to the lid packing 28, the height E from the water stop horizontal plane 32 to the upper end of the side wall 34 is such that the lid 12 is placed on the shoulder 14 as shown in FIG. When installed, the upper end of the second opening 11 is in pressure contact with the water-stop surface 32 to form a water-stop seal portion 38, and the outer periphery or the side wall 34 of the water-stop surface 32 is in contact with the inside of the peripheral wall 17 and the air gap It is formed to be larger than the height F from the upper end of the second opening 11 to the inside of the top surface 18 in a state in which the lid packing 28 is elastically deformed so that 35 is eliminated and the ventilation seal portion 39 is formed. Yes. In FIG. 1, the height E ′ from the waterstop plane 32 to the lowest portion of the notch 37 on the side wall 34 is formed larger than or the same as the minimum gap width G of the ventilation gap 35. (E ′> G, E ′ = G).

  Further, as shown in FIG. 5, a pair of the second male screws 16 are formed in the same direction through the gap 40 in the horizontal direction, and the circumferential length thereof is shorter than half the circumferential length. . On the other hand, the second female screw 21 is formed in a double thread shape in which two screw grooves are formed in a spiral shape in parallel. Then, the screw-in height by the second male screw 16 and the second female screw 21 is such that the upper end of the second opening 11 abuts on the second opening 11 water-stop horizontal plane 32 by tightening the lid body 12. From the state, the water-stop horizontal plane 32 is in pressure contact with the inner side of the peripheral wall 17, so that the ventilation seal portion 39 can be formed at a height that can be formed. For this reason, the screw length H of the second male screw 16 is larger than the length from the upper end of the second opening 11 to the water stop horizontal plane 32 at the beginning of screwing as shown in FIG. The seal portion 39 is formed so that it can be formed. In the embodiment, the second male screw 16 and the second female screw 21 are double-threaded screws, but are not limited to double-threaded screws, and may be multi-threaded screws such as three-threaded screws and four-threaded screws.

  By comprising in this way, the stopper 2 is removed from the container main body 1, a drink is put in, and the stopper 2 is again inserted into the container main body 1 through the first male threaded portion 8 and the first female threaded portion 9 to form a cylindrical body. 10 is attached to the lid 12. Further, the knob 20 is picked and the lid body 12 is rotated to screw the second female screw 21 into the second male screw 16. In this screwing, a pair of the second male screw 16 in which the circumferential length is shorter than half of the total circumferential length is provided symmetrically via the gap 40, and the second female screw 21 Is formed by a double threaded screw, so that the second female screw 21 can be fastened to the second male screw 16 by turning the lid body 12 approximately one-half turn.

  When the tightening is loose as shown in FIG. 1, the lid packing 28 is not in contact with the upper end of the second opening 11, so that no external force is applied. The notch 37 is in contact with the inside of the top surface 18 and the notch 37 is formed in an arc shape.As a result, the hollow 36 is in communication with the first gap 22 and the ventilation gap 35 through the notch 37. It has become.

  Then, when the lid 12 is turned and gradually tightened, the water stop seal 38 is formed when the upper end of the second opening 11 is pressed against the lower surface of the water stop horizontal plane 32, and the water stop horizontal plane 32 is further pressed upward. As a result, the hollow portion 36 side is slightly crushed and the side wall 34 is pressed against the inside of the peripheral wall 17 to form a ventilation seal portion 39. When the second male screw 16 and the second female screw 21 are tightened, the water-stop seal portion 38 is first formed, and then the lid packing 28 is deformed so that the hollow portion 36 is crushed. The inside of the portion 36 becomes positive pressure. As a result, the air in the hollow portion 36 is opened to the atmosphere through the notch 37 and the ventilation gap 35, and the inside of the hollow portion 36 becomes atmospheric pressure, and further the lid 12 is tightened. Further, the lid packing 28 is deformed and the side wall 34 below the notch 37 is crushed to form a vent seal part 39 that deforms outward, and the hollow part 36 is in communication with the notch 37, even if the inside and outside are in communication with each other, The hollow portion 36 is sealed by the ventilation seal portion 39 without being opened to the atmosphere.

  In this manner, when the lid 12 is formed with the water-stop seal portion 38 and the ventilation seal portion 39 formed between the second opening 11 of the plug 2 and the lid 12, the lid packing 28 is a hollow portion. Tightening operation is possible because it forms 36, and the inside of the hollow part 36 becomes a sealed space and becomes positive pressure, so it is sure to leak due to instantaneous deformation due to inverted drop impact etc. Can be prevented.

  On the other hand, when the lid 12 is loosened and the upper end of the second opening 11 is separated from the water stop horizontal plane 32 and the lid packing 28 is restored in order to discharge the stored beverage, the volume of the hollow portion 36 increases and the hollow portion 36 is in a negative pressure state, and the side wall 34 of the lid packing 28 is separated from the inside of the peripheral wall 17 of the lid body 12 to eliminate the ventilation seal portion 39, thereby forming the ventilation gap 35 again. The hollow portion 36 is introduced into the hollow portion 36 from the one gap 22 through the ventilation gap 35 and the notch 37, and the hollow portion 36 is maintained at atmospheric pressure. For this reason, the hollow part 36 is eliminated from the negative pressure state, and the circumference of the water stop horizontal plane 32 and the side wall 34 are restored. Therefore, even if the lid 12 is tightened again, the hollow portion 36 of the lid packing 28 is not crushed and deformed, but is restored, so that it is possible to ensure water blocking.

  In the tightening operation of the lid body 12 and the releasing operation thereof, the second male screw 16 is provided with a pair of left and right at intervals slightly shorter than half of the peripheral surface, and the second female screw 21 is a double thread screw. Therefore, the rotation angle of the lid 12 is approximately half a round, that is, it can be switched from one of the sealed state and the released state of the hollow portion 36 of the lid packing 28, that is, the open state to the other state by one twist. It has become.

  As described above, in the embodiment described above, the hollow portion 36 is provided between the lid packing 28 and the lid body 12, so that the torque change at the time of tightening the lid body 12 becomes gradual, and the lid packing 28 is sufficiently crushed. As a result, the tightening operation can be performed firmly until the operability is improved.

  Also, by providing a notch 37 in the side wall 34 at the periphery of the lid packing 28 water stop horizontal plane 32, when the hollow portion 36 is crushed, the lid 12 does not adhere to the lid 12 and ventilates and returns to its original state when the lid 12 is opened. , Water stoppage does not decrease.

  Furthermore, a notch 37 that is approximately half the height of the side wall 34 is provided on the upper side of the side wall 34 on the side wall 34 at the periphery of the water stop horizontal plane 32 of the lid packing 28, so that the lid packing 28 When the peripheral wall 17 below the notch 37 is crushed and deformed to the outside, it closely adheres to the side wall 34 in the lid 12, and when the lid 12 is tightened, the hollow portion 36 becomes a sealed space and the lid 12 is tightened. The positive pressure sometimes prevents leakage due to momentary deformation due to an inverted drop impact, etc., and when the lid 12 is removed, the lower part of the lid packing 28 is below the notch 37 inside the lid 12 Since the air gap is formed in the lid packing 28 away from the wall 34 and the lid packing 28 hollow part 36 is opened to the atmosphere and the packing is crushed, the original shape is restored, so that the lid packing 28 is closely attached to the lid body 12. This can be prevented, and even if the lid 12 is opened and closed again, a certain water-stopping property is maintained.

  In addition, by adopting a structure for attaching and detaching the lid 12 of the second female screw 21 having a double threaded structure that can be opened and closed with a half turn, that is, with one twist, it is possible to prevent a sudden increase in torque. Sufficient tightening operation is possible.

  FIG. 6 shows a second embodiment. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the second embodiment, the water can be stopped not only by the water stop horizontal surface 32 of the second opening 11 in the lid packing 28 but also by the intermediate ring portion 33, and further provided on the upper half side of the side wall 34. The communication portion is not a notch 37 but is formed by a laterally extending through hole 37 ′ that communicates inside and outside, and this through hole 37 is provided in a pair of left and right.

  In the second embodiment, the same effects as those of the first embodiment can be obtained.

  As described above, the beverage container plug according to the present invention can be applied to various applications.

1 Container body 2 Plug body 5 First opening
11 Second opening
12 Lid
16 Second male screw
21 Second female screw
28 Lid packing
32 Water stop horizontal plane (water stop plane)
34 Side wall
35 Ventilation gap
36 Hollow part
37 Notch (communication part)
38 Water seal
39 Ventilation seal

Claims (1)

A stopper that is detachably attached to the first opening of the container body, attached detachably with the second opening and projecting on top of said closure body cylindrical, with a screw fitted to the second opening a lid for a check horizontal plane Oite the beverage container with a lid gasket for water stopping the second opening is attached to the lid body, said lid packing said second opening,該止horizontal surface projecting from the peripheral edge upward by Rukoto provided sidewalls are spaced inner walls and the gap of the cover member, the hollow surrounded by the lid top inside and the stopper horizontal plane and the side wall of the lid gasket parts are formed, on the side wall of the stop horizontal edge of the lid packing, beverage container, wherein the communicating portion is provided for ventilation for connecting the gap between the hollow portion.

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