JP2010189037A - Plug for beverage container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plug for a beverage container for preventing the drop of a packing and for easily preventing the loss of the packing even if it drops. <P>SOLUTION: This packing 19 is provided with a water stop protrusion 22 which contacts the opening end 2A of a container body 2 and the back face 25 of the recess 20 of a plug 10 with each of its bottom face 26 and top face 27 for stopping water, a downwardly extended wall 23 which extends downward from the inside bottom end of the protrusion 22 and contacts the outside face of the inside wall 21 of the plug 10 with its inside face 29 for stopping water and an inwardly extended face 24 inwardly extended from the bottom end of the wall 23 from a position exceeding the bottom end 21A of the wall 21 of the plug 10. The large contact area between the wall 23 of the packing 19 and the inside wall 21 of the plug 10 makes it difficult for the packing to drop and liquid to leak. The packing 19 with a relatively large-sized vertical width and cross section area offers an increased visibility when it is in a single component condition and it makes the packing 19 difficult to be lost when it drops. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to plugs of various beverage containers including portable thermos bottles, water bottles, and sports drink containers.

  Conventionally, in this type of beverage container plug body, a beverage container body, a plug body that is attached to the opening of the container body, and a gap between the container body opening and the plug body that is attached to the plug body. The gasket is formed in a flat shape with an annular flat surface, and a packing mounting recess provided on the inner surface of the plug body, and an inner wall located inside the mounting recess and extending downward. In addition, there is known one that stops water by contacting the opening of the container main body and the concave inner surface of the stopper body on the lower surface and the upper surface, respectively.

Japanese Patent No. 3937428

  In the prior art, since the surface that contacts the inner wall of the plug body and stops water is only the inner surface of the annular packing, and the contact area is small, the frictional force for preventing the packing from falling off is relatively small. For this reason, the packing is likely to drop off during cleaning or the like, and may be easily lost or leaked.

  In the prior art, the packing size (vertical width, cross-sectional area) is relatively small, so that it is difficult to stand out. Therefore, when it falls off, the stopper is attached to the container main body without being noticed and without packing, and the beverage may leak.

  Furthermore, in the state where the packing is attached to the back of the mounting recess, the lower end of the packing is located on the back side of the recess from the lower end of the inner wall, so that the removal work is difficult. That is, since the vertical length of the inner wall of the plug body is larger than the vertical length of the packing, the lower end of the packing is positioned above the lower end of the plug body wall (the back side of the concave portion) when the packing is attached to the innermost portion of the concave portion. Therefore, the removal work becomes difficult. For this reason, the inner wall is provided with an inner wall defect (notch) for facilitating the removal work. However, when such a removal defect portion is provided on the inner wall, the convex and concave portions are difficult to clean and dirt may accumulate and may become unsanitary, and the convex and concave portions may collide with fingers during cleaning work and become painful. It was.

  Also, in the prior art, the lower end of the inner wall becomes an obstacle, and it is difficult to push the packing to the innermost part of the recess and attach it, and there is a possibility that the packing is likely to fall off when it is not possible to push it to the innermost part. .

  The problem to be solved is to prevent the packing from dropping off, and even if it comes off, it is easy to prevent the packing from being lost.Furthermore, it is possible to prevent leakage due to forgetting to install the packing, or to remove the packing and improve the mounting workability. It is a point which aims at prevention of the dirt accumulation of the attachment part of packing.

  In order to achieve the above object, the invention of claim 1 is directed to a beverage container main body, a plug to be attached to an opening of the container main body, an opening of the container main body attached to the plug, and the plug. Packing for water tightly sealing between the bodies, a recessed portion for attaching the packing provided on the inner surface of the stopper, and a stopper for a beverage container provided with an inner wall located inside the recessed portion for mounting and extending downward In the body, the packing extends downward from an inner lower end of the protrusion, the water stop protrusion that contacts the opening end of the container main body and the concave back surface of the stopper body at the lower surface and the upper surface, respectively, A downwardly extending wall whose inner surface is in contact with the outer surface of the inner wall of the plug body and stops water, an inner surface extending inwardly from the lower end of the downwardly extending wall from a position beyond the lower end of the inner wall of the plug body A beverage container stopper having a direction extending surface.

  The invention according to claim 2 is characterized in that the vertical length of the inner surface of the downwardly extending wall is equal to or more than twice as long as the vertical length of the protrusion. It is.

  The invention according to claim 3 is characterized in that the width of the upper surface of the inwardly extending surface is equal to or greater than the thickness of the lower end of the inner wall of the stopper, and the stopper of the beverage container according to claim 1 or 2 It is.

  According to a fourth aspect of the present invention, the lower surface of the inwardly extending surface is a pushing portion when the packing is attached to the concave portion, and the inwardly extending surface is a gripping margin when the packing is removed. It is a stopper of the beverage container of any one of Claims 1-3 characterized by these.

  According to invention of Claim 1, since the contact area between packing and the inner wall of a stopper is large, it becomes difficult to drop out.

  According to the invention of claim 2, by making the downwardly extending wall relatively large, the size of the packing can be made relatively large, and even if it falls off, the packing is conspicuous and lost because the visibility in a single part state is improved. In addition, the water stoppage is improved because the contact area with the outer surface of the inner wall of the plug body is large.

  According to invention of Claim 3, the upper surface of an inward extending surface can be reliably latched to an inner wall lower end.

  According to the invention of claim 4, by providing the push-off portion, it becomes easy to attach the packing, and it can be surely pushed into the innermost surface of the recess, thereby preventing the packing from falling off and improving the water tightness. be able to. Moreover, it becomes easy to remove the packing by providing a gripping margin.

It is sectional drawing which shows Example 1 of this invention. It is sectional drawing of the packing. It is the same exploded perspective view.

  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 the configurations described below are not necessarily essential requirements of the present invention.

  1 to 3 show the first embodiment. A portable thermos bottle 1 is made of a metal container body 2 and a synthetic resin material that is attached to an opening end 2A that is an opening of the container body 2. And a stopper 3. The container main body 2 has a heat insulating double structure in which the edges of the open end 2A of the inner cylinder 4 and the outer cylinder 5 are integrally joined, and the space between the inner cylinder 4 and the outer cylinder 5 serves as a vacuum heat insulating layer 6. Thus, a male screw 7 for screwing the inner plug 3 is formed on the outer periphery of the upper portion of the outer cylinder 5.

  The inner plug 3 is formed with a female screw 9 on a cylindrical portion 8 surrounding the outer periphery of the upper portion of the outer cylinder 5, and this female screw 9 is screwed onto the male screw 7 of the outer cylinder 5 to open the opening end of the container body 2. A plug 10 attached to 2A, a lid 12 connected to the plug 10 using a hinge 11 so as to be openable and closable, and a lock means for holding the lid 12 fully closed on the side opposite to the hinge 11 13 and.

  The plug 10 is formed in an inverted bottomed cylindrical shape in which a top plate 14 that covers the open end 2 </ b> A of the container body 2 is provided on the upper surface of the cylindrical portion 8. A seesaw-type lock button 15 and a locking ring 16 which are constituent members of the lock means 13 are provided. In addition, a drinking mouth 17 is provided on one side of the top plate 14.

  Further, a water-stop packing 19 is provided inside the tubular portion 8 of the plug body 10 for watertightly sealing between the opening end 2A, which is the upper opening of the container body 2, and the plug body 10. The water-stop packing 19 is formed of an elastomer, rubber, or elastic synthetic resin, and is detachably attached to a mounting recess 20 of the packing 19 provided on the inner surface of the plug body 10. The mounting recessed portion 20 is provided in an annular shape having a flat surface concentric with the plug body 10, and extends along the cylindrical portion 8 between the female screw 9 and the top plate 14 in the vertical direction. Open direction. The inner wall 21 provided on the inner side for forming the recess 20 extends downward to a distance approximately equal to the lateral width of the recess 20. One side of the inner wall 21 extends downward so as to be continuous with the cylindrical portion 8, and the other side of the inner wall 21 is located on the hinge 11 side from the cylindrical portion 8.

The water stop packing 19 includes a water stop protrusion 22 which is a packing body interposed between the opening end 2A of the container body 2 and the recess 20, and a downward extending wall extending downward from the water stop protrusion 22. 23 and an inwardly extending surface 24 extending inwardly from the lower end of the downwardly extending wall 23. The water-stop projection 22 is formed by contacting the open end 2A and the back surface 25 of the recess 20 of the plug body 10 with the lower surface 26 and the upper surface 27, respectively, and the plane is annular and the longitudinal section is substantially rectangular. In the center of the outer peripheral surface in the vertical direction, a groove 28 is provided inwardly over the entire circumference. The depth of the groove 28 toward the inside reaches almost the center. The inner surface 29 of the downwardly extending wall 23 is in contact with the entire area of the outer surface of the inner wall 21 of the plug 10, and the outer surface 30 has a gap A with the outer surface of the recess 20. And when each upper surface 27 is made into the upper end, the vertical length B of the inner surface 29 of the downward extending wall 23 is formed more than twice equivalent to the vertical length C of the water stop protrusion part 22 (B > 2C, B = 2C).
The inward extending surface 24 extends inward from the lower end of the lower extending wall 23 from a position connected to the lower end of the lower extending wall 23 and exceeding the lower end 21A of the inner wall 21. The width D of the upper surface 32 of the inwardly extending surface 24 is equal to or greater than the thickness E of the lower end of the inner wall 21 of the plug 10 (D = E, D> E).

  Then, the lower surface 33 of the inwardly extending surface 24 is formed in a push-off portion when the packing 19 is attached to the recess 20. Further, the inwardly extending surface is formed at a grip when the packing is removed.

  The drinking mouth 17 of the stopper 10 protrudes from the top plate 14 into a substantially cylindrical shape with a thickness that is suitable for a drinker to include in the mouth, and is covered with the lid 12, and the inside of the drinking mouth 17 protrudes from the top plate 14. The spout can be sealed with a packing 31 attached to the lid 12 when the lid is closed.

  And when drinking the drink in the container main body 2, the lock | rock state by the lock button 15 and the latching ring 16 is cancelled | released, the lid body 12 is rotated and opened with the hinge 11 as a rotation center, and the drinking mouth 17 With the lid 12 facing the drinker and the open lid 12 facing away from the drinker, the mouth of the drinking mouth 17 is attached and the container body 2 is tilted toward the drinker side, so that the beverage in the container body 2 Will flow out of the mouth 17.

  As mentioned above, in the said Example, the packing 19 is the water stop protrusion which contacts the open end part 2A of the container main body 2, and the inner surface 25 of the recessed part 20 of the stopper 10 by the lower surface 26 and the upper surface 27, respectively. Part 22, a lower extension wall 23 that extends downward from the inner lower end of the protrusion 22, the inner side surface 29 is in contact with the outer side surface of the inner wall 21 of the plug body 10, and water stops, and the inner wall 21 of the plug body 10 By providing an inward extending surface 24 extending inward from the lower end of the downward extending wall 23 from a position beyond the lower end 21A, the downward extending wall 23 of the packing 19 and the inner wall 21 of the plug body 10 Since the contact area between them is large, the packing 19 is difficult to drop off, and the packing 19 has a relatively large size such as the vertical width and cross-sectional area. Hard to do. Further, since the contact area with the outer surface of the inner wall 21 of the plug 10 is large, the water-stopping property is also improved.

  Furthermore, since the size of the packing 19 is large when the packing 19 is attached to the plug 10, the visibility of the packing 19 is expanded, the presence or absence of the attachment can be easily identified, and leakage due to forgetting to attach the packing 19 can be prevented.

  Further, the inwardly extending surface 24 of the packing 19 is positioned below and inward from the inner wall 21 of the plug body 10 and becomes a gripping force when removing, so that the packing 19 can be easily removed. Further, since the lower surface 33 of the inwardly extending surface 24 is a pushing portion when the packing 19 is attached to the plug body 10 recess 20, the packing 19 can be easily attached and can be surely pushed into the innermost surface 25.

  In addition, since the vertical length B of the inner side surface 29 of the downward extending wall 23 is equal to or more than twice the vertical length C of the water stop projection 22, the size of the packing 19 can be increased, and it is in an attached state. The visibility of the packing 19 can be improved. Furthermore, since the contact area between the packing 19 and the inner wall 21 of the plug body 10 is increased, the packing 19 is less likely to drop off, and the water stoppage at the contact surface is also improved.

  Further, the width D of the upper surface 32 of the inwardly extending surface 24 is equal to or greater than the thickness E of the lower end 21A of the inner wall 21 of the plug body 10, so that when the packing 19 is removed, the width D of the upper surface 32 is inward. The extended surface 24 can be easily picked and taken out, and can be attached easily.

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

2 Container body 2A Open end (opening)
10 Plug
19 Packing
20 recess
21 inner wall
21A Bottom
22 Water stop protrusion
23 Downward extending wall
24 Inwardly extending surface
25 back
26 Bottom
27 Top view
29 Inside
32 Upper surface of inwardly extending surface 24
33 Lower surface B of inwardly extending surface 24 Vertical length C of inner surface 29 Vertical length D of water-stop projection 22 Width of upper surface 32 E Wall thickness of lower end 21A

Claims (4)

Beverage container main body, plug body to be attached to the opening of the container body, packing attached to the plug body and watertightly sealed between the opening of the container body and the plug body, and the plug body In the stopper of the beverage container provided with a recessed portion for attaching the packing provided on the inner surface of the container and an inner wall located on the inner side of the recessed portion for attaching and extending downward,
The packing is
A water-stop projection that contacts the opening end of the container body and the recess back surface of the stopper at the lower surface and the upper surface, respectively,
A downward extending wall that extends downward from the inner lower end of the protrusion, and the inner side surface is in contact with the outer side surface of the inner wall of the plug body to stop water,
An inward extending surface extending inward from the lower end of the downwardly extending wall from a position beyond the lower end of the inner wall of the plug body;
A stopper for a beverage container, comprising:   The beverage container stopper according to claim 1, wherein the vertical length of the inner surface of the downwardly extending wall is equal to or more than twice the vertical length of the protrusion.   3. The beverage container plug according to claim 1, wherein the width of the upper surface of the inwardly extending surface is equal to or greater than the thickness of the lower end of the inner wall of the plug.   2. The lower surface of the inwardly extending surface is a pushing portion when the packing is attached to the recess, and the inwardly extending surface is a gripping margin when the packing is removed. The stopper of the beverage container according to any one of -3.

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