JP2010089842A - Lid for liquid container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a lid for a liquid container for a conventional water server is hardly mounted to the mouth of a liquid container body. <P>SOLUTION: This lid for the liquid container comprises an upper lid for closing the upper end opening of a cylindrical opening of the liquid container, an outer cylinder hung from the outer edge of the upper lid and covering the outer peripheral face of the cylindrical opening, a projecting part formed at the inner peripheral face of the lower part of the outer cylinder, and a notch formed at the projecting part of the inner peripheral face of the outer cylinder, and is characterized in that the projecting part formed at the outer peripheral face of the upper end of the cylindrical opening is liquid-tightly fitted to a part formed of the upper lid, the outer cylinder and the projecting part of the inner peripheral face of the outer cylinder. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a lid for a liquid container, and more particularly to a lid attached to the mouth of a liquid container for a water server.

  4 to 6 show a conventional lid that is liquid-tightly attached to the mouth of a liquid container for a water server, and 1 is a liquid container such as a plastic bottle having a capacity of 19.8 liters or 12.3 liters, for example. A cylindrical mouth part having a diameter of about 53 mm provided at the upper part of the main body, 2 is a convex part provided along the outer peripheral surface of the upper end of the cylindrical mouth part 1, and 3 is a diameter of about A 55 mm flexible plastic lid.

  The lid 3 has an upper lid portion 4 that closes the upper end opening of the cylindrical mouth portion 1 and a thickness that covers the outer peripheral surface of the convex portion 2 of the cylindrical mouth portion 1 that is suspended from the outer edge of the upper lid portion 4. A 1.8 mm upper outer cylinder 5, a projecting part 6 having a triangular cross section and a thickness of about 3.5 mm protruding inward in the radial direction, provided along the lower inner peripheral surface of the upper outer cylinder 5, and the upper part A lower outer cylinder 7 having a thickness of about 1.2 mm provided at the lower end of the outer cylinder 5, a groove portion 8a provided over a range of about 3/4 of the upper inner peripheral surface of the lower outer cylinder 7, and the lower part A notch 8b provided on the outer cylinder 7 from one end of the groove 8a to the lower end of the lower outer cylinder 7, a plurality of convex parts 9 provided concentrically on the lower surface of the upper lid part 4, and the upper lid part 4 A hole 10 provided in the center of the upper part, an upper cylinder 11 provided at the lower part of the edge of the hole 10, and a bottomed lower cylinder that closes the bottom of the upper cylinder 11 2 and be more.

  In the conventional lid 3, the convex portion 2 of the cylindrical mouth portion 1 of the liquid container body has a liquid at a portion formed by the upper lid portion 4, the upper outer cylinder 5, and the convex portion 6 of the lid 3. Closely fitted to prevent liquid leakage.

  Then, the liquid container equipped with the lid 3 is turned upside down, and a water supply pipe (not shown) protruding from the upper part of the water server is inserted into the cylindrical parts 11 and 12, and the lower cylinder is inserted by the tip of the water supply pipe. The part 12 is separated from the upper cylindrical part 11 and the liquid in the liquid container is supplied into the water server.

  When the liquid in the liquid container runs out, the liquid container is removed from the water server, and the lid 3 is removed from the mouth 1 of the liquid container body, the relative position relative to the upper outer cylinder 5 is If the lower outer cylinder 7 in the vicinity of the notch 8b is pulled by hand, the lower outer cylinder 7 is separated from one end to the other end of the groove 8a, and if the lower outer cylinder 7 is pulled by hand, The lid 3 can be removed from the mouth 1 of the liquid container.

  There exists patent document 1 as a water server and a liquid container, for example.

JP 2007-210667 A (FIG. 2)

  When attaching a lid to the mouth of the liquid container body, in the type of lid that uses packing between the upper lid of the lid and the upper end of the cylindrical mouth, liquid leakage can be prevented by packing, so the upper outer cylinder The thickness of the protruding part provided on the inner peripheral surface of the lower part is not so high as about 2.5 mm, so that it can be mounted by hand. However, in the above-mentioned type of lid not using packing, Since leakage is prevented by the height of the convex portion 6, the thickness of the convex portion 6 of the lid is as thick as about 3.5 mm, so it is hard to attach a cap to the mouth of the liquid container, and a mounting jig is required. There was a drawback of being.

  The present invention eliminates the above-mentioned drawbacks.

  The lid for a liquid container of the present invention includes an upper lid portion that closes an upper end opening of the cylindrical mouth portion of the liquid container, an outer cylinder that hangs down from an outer edge of the upper lid portion, and covers an outer peripheral surface of the cylindrical mouth portion; A convex portion provided on the inner peripheral surface of the outer lower portion of the outer cylinder and a notch provided in the convex portion of the inner peripheral surface of the outer cylinder, and the convex portion provided on the outer peripheral surface of the upper end of the cylindrical mouth portion is the upper lid portion. And a portion formed by the outer cylinder and a convex portion on the inner peripheral surface of the outer cylinder.

  The shape of the notch is a circular arc, and the number of notches is 4 or more and 9 or less, and the depth of the notch is a convex portion provided on the inner peripheral surface of the outer cylinder. It is a value that is half the value obtained by subtracting the thickness of the outer cylinder from the thickness of the tube.

  In addition, when the diameter of the upper lid part is 55 mm, the thickness of the outer cylinder is 1.8 mm, and the thickness of the convex part is 3.5 mm, the depth of the notch is 1.1 mm. To do.

  Further, the rising portion of the notch is formed in a curved shape.

  According to the lid of the present invention, there is a great advantage that the lid can be easily attached to the mouth of the liquid container main body by hand without using a jig. Moreover, there is no liquid leakage even if a notch is provided.

  In addition, since the conventional lid was hard to install, when attaching the lid to the mouth part of the liquid container body, it was not possible to understand the feeling of wearing, and it was necessary to check whether the lid could be attached to the mouth part of the liquid container body. However, in the present invention, when the lid is attached to the mouth portion of the liquid container body by hand, for example, there is a feeling of wearing “Pon”, and it is confirmed whether the lid is attached to the mouth portion of the liquid container body. It can be made unnecessary.

It is a vertical front view of the lid for liquid containers of the present invention. It is a bottom view of the lid | cover for liquid containers of this invention. It is an enlarged bottom view of the principal part of the lid | cover for liquid containers of this invention. It is a vertical front view of the opening | mouth part and lid | cover of the conventional liquid container. It is a vertical front view of the conventional lid | cover for liquid containers. It is a bottom view of the conventional lid | cover for liquid containers.

  Embodiments of the present invention will be described below with reference to the drawings.

  In the lid 13 of the present invention, as shown in FIGS. 1 and 2, one or a desired interval is provided on the convex portion 6 provided along the lower inner peripheral surface of the upper outer cylinder 5 of the conventional lid 3. A plurality of cutouts 14 are provided.

  According to the lid of the present invention, there is a great advantage that the lid 13 can be easily attached to the mouth portion 1 of the liquid container body by hand without using a jig. Moreover, there is no liquid leakage even if a notch is provided.

  In addition, since the conventional lid was hard to install, when attaching the lid to the mouth part of the liquid container body, it was not possible to understand the feeling of wearing, and it was necessary to check whether the lid could be attached to the mouth part of the liquid container body. However, in the present invention, when the lid is attached to the mouth portion of the liquid container body by hand, for example, there is a feeling of wearing “Pon”, and it is confirmed whether the lid is attached to the mouth portion of the liquid container body. It can be made unnecessary.

  As a result of various experiments, when the notch 14 is simply cut or when the notch is triangular, when the lid 13 is attached to the mouth 1 of the container body, the periphery of the notch 14 The part may be damaged and liquid leakage may occur, but if the shape of the notch is an arc (including an ellipse or an arc that forms part of a conical curve), it may be damaged. The shape of the notch is preferably a circle or an ellipse.

  In addition, when the number of notches is 3 or less, the wearing feeling is still hard and the wearing feeling is poor, and when it is 10 or more, liquid leakage occurs, so the number of the notches is 4 or more and 9 or less. Is preferred.

  Further, the depth of the notch is half the value obtained by subtracting the thickness of the outer cylinder from the thickness of the convex portion 6, that is, the thickness of the convex portion 6 is changed from 3.5 mm to the upper outer cylinder 1.8 mm. Depth value of about 0.9mm, which is about half of 1.7mm, and subtracting 1.2mm of lower outer cylinder from thickness of 3.5mm of convex part 6, about half depth of about 2.3mm It is preferably between 1.1 mm.

  The intervals between the notches 14 are preferably equal.

The shape of the notch 14 is preferably a circular arc having a notch depth of 1.1 mm and a diameter of 3 mm to 3.5 mm.

  Further, as shown by a broken line in FIG. 3, when the rising portion 15 of the notch 14 is formed in a square shape, when the lid 13 is attached to the cylindrical mouth portion 1, the periphery of the rising portion is damaged. Therefore, as shown by the solid line in FIG. 3, the corner portion of the rising portion 15 is preferably chamfered to form a gentle curve so that it does not break. Note that the chamfer of the rising portion 15 may be the entire corner portion or a part of the corner portion.

DESCRIPTION OF SYMBOLS 1 Cylindrical mouth part 2 Convex part 3 Cover 4 Upper cover part 5 Upper outer cylinder 6 Convex part 7 Lower outer cylinder 8a Groove part 8b Notch 9 Convex part 10 Hole part 11 Upper cylindrical part 12 Lower cylinder part 13 Lid 14 Notch 15 Standing part

Claims (6)

  An upper lid portion that closes the upper end opening of the cylindrical mouth portion of the liquid container, an outer cylinder that hangs down from the outer edge of the upper lid portion, covers the outer circumferential surface of the cylindrical mouth portion, and is provided on the lower inner circumferential surface of the outer cylinder. Consists of a convex part and a notch provided in the convex part of the inner peripheral surface of the outer cylinder, and the convex part provided on the outer peripheral surface of the upper end of the cylindrical mouth part is inside the upper lid part, the outer cylinder and the outer cylinder. A liquid container lid, which is liquid-tightly fitted to a portion formed by a convex portion on a peripheral surface.   2. The lid for a liquid container according to claim 1, wherein the shape of the notch is an arc.   The lid for a liquid container according to claim 1 or 2, wherein the number of the notches is 4 or more and 9 or less.   The depth of the notch is half the value obtained by subtracting the thickness of the outer cylinder from the thickness of the convex portion provided on the inner peripheral surface of the outer cylinder. The lid for a liquid container as described.   The notch depth is 1.1 mm when the diameter of the upper lid portion is 55 mm, the thickness of the outer cylinder is 1.8 mm, and the thickness of the convex portion is 3.5 mm. Item 2. A lid for a liquid container according to item 1, 2 or 3.   6. The lid for a liquid container according to claim 1, wherein a rising portion of the notch is formed in a curved shape.

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