JP2010030679A - Lid for liquid container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a lid for liquid container for a conventional water server is fitted on the mouth section of a liquid container through a packing made of a foaming polymer, and since the packing has odor-transfer property, the odor adheres in a die at the time of the manufacture of the packing or at the time of transport. <P>SOLUTION: This lid for liquid container consists of an upper lid section 4 which covers the upper end of the cylindrical mouth section 2 of the liquid container, and an external cylinder 11 which is vertically hung from the external edge of the upper lid section, and covers the outer peripheral surface of the cylindrical mouth section 2. Also, the lid for liquid container consists of an internal cylinder 13 which is installed on the lower surface of the upper lid section and covers the inner peripheral surface of the cylindrical mouth section, and an upside-down triangular protruding section 3 which covers the top section of the cylindrical mouth section. <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.

  FIG. 9 shows a cap that is liquid-tightly attached to the mouth of a liquid container for a conventional water server. 1 is a liquid container body such as a plastic bottle having a capacity of 19.8 liters or 12.3 liters, for example. Is a cylindrical mouth part having a diameter of about 50 mm provided at the upper part of the liquid container body 1, 3 is a convex part provided along the upper peripheral surface of the cylindrical mouth part 2, and 4 is the cylindrical mouth part 2. 5 is an elastic donut plate-like foamed polyethylene packing inserted between the lower surface of the upper lid 4 and the upper end of the mouth 2, and 6 is an outer cover of the upper lid 4. An outer cylinder that hangs from green and covers the outer peripheral surface of the cylindrical mouth portion 2, and 7 is provided in the cylindrical mouth portion 2 of the liquid container main body 1 that is provided along the upper inner peripheral surface of the outer cylinder 6. A concave portion 8 is provided in the central portion of the upper lid portion 4. Parts, 9 provided on the edge of the hole 8, a cylindrical portion with a bottom closing the said holes 8.

  In such a conventional liquid container for a water server, the liquid container body 1 fitted with the cap 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 portion 9. Then, the bottom of the cylindrical portion 9 is penetrated by the tip of the water supply pipe, and the liquid in the liquid container body 1 is supplied into the water server.

An example of such a water server and liquid container is Patent Document 1.
Japanese Laid-Open Patent Publication No. 2007-210667 (Fig. 2)

  However, since the packing used in the conventional cap is a foamable polymer (polymeric material), it has a fragrance property, and there is a drawback that odors are attached in the mold when the packing is manufactured or during transportation. It was.

  Further, in the cap using the conventional packing as described above, water leakage could not be completely prevented.

As a result of various experimental studies, the inventor provided an outer cylinder and an inner cylinder that cover the inner peripheral surface and the outer peripheral surface of the cylindrical mouth portion of the liquid container in close contact with the lower surface of the upper lid portion without using packing, The shape of the liquid container is attached by sandwiching the mouth of the liquid container, and an inverted triangular projection is formed on the lower surface of the upper lid, and the inverted triangular shape is pressure-bonded to the cylindrical upper surface of the liquid container. Because the plastic material uses flexible plastic, the liquid container lid will not cause liquid leakage when it is crimped to the mouth of the liquid container and the inverted triangle forms an inverted trapezoid. I found.
The present invention has been made based on such knowledge.

  The lid for a liquid container of the present invention includes an upper lid portion that covers the upper end of the cylindrical mouth portion of the liquid container, an outer cylinder that hangs from the outer edge of the upper lid portion, covers the outer peripheral surface of the cylindrical mouth portion, and the upper lid The inner cylinder which covers the inner peripheral surface of the said cylindrical opening part provided in the lower surface of the part and the convex part of an inverted triangle which adhere | attaches (crimps) the said cylindrical upper surface are characterized by the above-mentioned.

  The lid for a liquid container of the present invention is an outer cover that covers the upper end of the cylindrical mouth of the liquid container and an outer peripheral surface of the cylindrical mouth that is suspended from the outer edge of the upper lid. A tube, a recess provided on the upper end outer peripheral surface of the cylindrical mouth portion provided along the upper end inner peripheral surface of the outer tube, and the cylindrical shape provided on the lower surface of the upper lid portion An inner cylinder that tightly covers and covers the inner peripheral surface of the mouth, an inverted triangular convex portion that closely contacts the upper surface of the cylindrical mouth, a hole provided in the center of the upper lid, and the upper lid It consists of a bottomed cylinder part which closes the said hole part provided in the lower part, It is characterized by the above-mentioned.

  Further, a means for separating a part of the outer cylinder from the outer cylinder is provided.

  According to the lid for a liquid container of the present invention, since the packing is not used, the manufacturing cost can be reduced. In addition, since no packing is used, there is a great advantage that no odor adheres to the lid.

  A practical example of the present invention will be described with reference to the following drawings.

Practical example 1

  As shown in FIGS. 1 to 7, the lid of the present invention is suspended from a disc-shaped upper lid portion 10 covering the upper end of the cylindrical mouth portion 2 of the liquid container body 1 and the outer edge of the upper lid portion 10. An outer cylinder 11 covering the upper outer peripheral surface of the cylindrical mouth 2 so as to be in close contact with the upper outer peripheral surface of the cylindrical mouth 2 provided along the upper inner peripheral surface of the outer cylinder 11. A concave portion 12 that covers the convex portion 3 formed, an inner cylinder 13 that is provided on the lower surface of the upper lid portion 10 so as to closely contact the inner peripheral surface of the cylindrical mouth portion 2 of the liquid container, The outer triangular shape 21 provided on the lower surface, the handle 14 provided at the lower end of the outer cylinder 11, and the one outer root 15 of the handle 14 provided on the inner peripheral surface of the outer cylinder 11 A groove 17 extending to the intermediate part 16 of the cylinder 11 and a circumferential direction from the other end of the groove 17 provided on the inner peripheral surface of the outer cylinder part 11 A groove 18 having a desired length that extends, a hole 19 provided in the center of the upper lid 10, and a bottomed tube 20 that closes the hole 19 provided at the edge of the hole 19. Become.

  Further, the lid is manufactured by integral molding with a flexible plastic or the like.

  Since the liquid container lid of the present invention has the above-described configuration, the outer cylinder 11 and the inner cylinder 13 are bent so that the convex portion 3 of the cylindrical mouth portion 2 and the concave portion 12 of the outer cylinder 11 are formed. If the cylindrical mouth part 2 of the liquid container is inserted between the outer cylinder 11 and the inner cylinder 13 and the upper surface of the outer cylinder 2 is brought into intimate contact with an inverted triangular convex portion, the cylindrical shape is obtained. The lid can be liquid-tightly attached to the mouth portion 2.

  Also, the liquid container equipped with the lid 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 part 20, and the bottom of the cylindrical part 20 is inserted by the tip of the water supply pipe. Can be supplied, the liquid in the liquid container can be supplied into the water server.

  When the liquid in the liquid container is exhausted, the liquid container is removed from the water server and the handle 14 is pulled, so that a part of the outer cylinder 11 extends along the grooves 17 and 18 as shown in FIG. Then, the lid can be removed from the liquid container by pulling the separated outer cylinder from the outer cylinder 11 and pulling the separated outer cylinder.

  According to the lid for a liquid container of the present invention, an outer cylinder and an inner cylinder are provided to cover the inner peripheral surface and the outer peripheral surface of the cylindrical mouth portion of the liquid container in close contact with the lower surface of the upper lid portion without using packing. The liquid container can be prevented from leaking by attaching the mouth of the liquid container in a sandwich shape and closely attaching the upper surface of the cylinder with an inverted triangular convex shape.

  Further, since no packing is used, the manufacturing cost can be reduced, and there is a great advantage that no odor adheres to the lid.

The grooves 17 and 18 may be provided on the outer peripheral surface instead of the inner peripheral surface of the outer cylinder 11. Moreover, you may provide the hole of a broken line shape instead of a groove | channel.

It is a vertical front view of the liquid container and lid | cover of this invention. It is an expansion vertical front view of the lid | cover for liquid containers of this invention. It is an enlarged front view of the lid | cover for liquid containers of this invention. It is an enlarged plan view of the lid for a liquid container of the present invention. It is an enlarged bottom view of the lid | cover for liquid containers of this invention. It is an expansion left view of the lid | cover for liquid containers of this invention. It is an expansion vertical side view for description of the groove | channel provided in the outer cylinder of the lid | cover for liquid containers of this invention. It is an expansion left view for explanation of the lid for liquid containers of the present invention. It is a vertical side view of the conventional lid | cover for liquid containers.

DESCRIPTION OF SYMBOLS 1 Liquid container main body 2 Cylindrical mouth part 3 Convex part 4 Upper cover part 5 Packing 6 Outer cylinder 7 Recessed part 8 Hole part 9 Cylinder part 10 Upper cover part 11 Outer cylinder 12 Recessed part 13 Inner cylinder 14 Handle part 15 Root part 16 Intermediate part 17 Groove 18 Groove 19 Hole 20 Tube 21 Inverted triangle

Claims (3)

  An upper lid portion that covers the upper end of the cylindrical mouth portion of the liquid container, an outer cylinder that hangs from the outer edge of the upper lid portion, covers the outer peripheral surface of the cylindrical mouth portion, and the cylinder that is provided on the lower surface of the upper lid portion A lid for a liquid container, characterized in that an inner cylinder covering an inner peripheral surface of a shaped mouth portion and a top surface of the cylindrical upper surface portion are pressure-bonded by an inverted triangular convex shape.   An upper lid covering the upper end of the cylindrical mouth of the liquid container, an outer cylinder suspended from the outer edge of the upper lid and covering the outer peripheral surface of the cylindrical mouth in close contact, and an upper inner peripheral surface of the outer cylinder The concave portion that covers the convex portion provided on the outer peripheral surface of the upper end of the cylindrical mouth portion and the inner peripheral surface of the cylindrical mouth portion that is provided on the lower surface of the upper lid portion are closely covered. An inner cylinder, a convex shape of an inverted triangle that covers the upper surface of the cylindrical mouth portion, a hole provided in the center portion of the upper lid portion, and a bottomed portion that blocks the hole portion provided in the lower portion of the upper lid portion A liquid container lid characterized by comprising a cylindrical portion.   3. The liquid container lid according to claim 1, further comprising means for separating a part of the outer cylinder from the outer cylinder.

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