JPH0440609Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a lid that also serves as a top for a liquid container.

<Conventional technology> Conventionally, a lid body that also serves as a top for a liquid container is provided with a bottomed lid body made of synthetic resin, and a metal bottomed lid cover is fitted around the outer periphery of the lid body from the bottom direction. However,
In this type of lid, both the lid main body and the lid cover have a taper on the peripheral side wall of the body, and adhesive is applied to the inner peripheral wall of the lid cover or the outer peripheral wall of the lid body to prevent the lid main body and the lid cover from separating. Because they were connected randomly,
The manufacturing process had the disadvantage that it was extremely time-consuming and could not be mass produced.

<Purpose of the invention> The present invention has been made in view of the above points, and it is an object of the present invention to provide a lid for a liquid container that can be easily assembled, sufficiently connected, and easily mass-produced.

<Structure of the invention> According to the invention, a bottom body portion having a step with the outside wall of the body is integrally molded at the lower end of the body of the lid of a liquid container, and a strip is formed on the outer periphery of the peripheral side wall of the bottom body portion. A cylinder having an annular engagement piece, an upper bent piece whose one end is bent inward and fits into the mouth of the lid body, and a lower bent piece whose other end is bent inward and abuts against the step lower wall at the lower end of the body. The purpose is achieved simply by providing a shaped lid cover, a bottom cover that covers the bottom body of the lid body, and a single annular groove for locking the annular engagement piece of the lid body on the inner periphery of the annular side wall of the bottom cover. It is something to be achieved.

<Example of the invention> Hereinafter, an example of the invention will be described based on the drawings. The liquid container 1 includes a container body 2, a stopper 3 that is removably screwed into the upper opening of the container body 2, and a lid 5 that surrounds the stopper 3 and is removably screwed onto the shoulder 4 of the container body. It consists of

The container body 2 consists of an inner wall 6 and an outer wall 7 made of stainless steel, and a predetermined distance is provided between the inner and outer walls by a vacuum, and the container body 2 is formed into a bottomed cylindrical shape with an opening at the center of the upper end.

The outer wall 7 of the container body has an inwardly bent shoulder 4 at the top, a lid screw 8 is provided at the top of the shoulder, and the upper end of the lid screw 8 is welded to the inner wall 6 and the upper end. are doing.

The inner wall 6 has an annular gasket 10 as a plug, which will be described later, on the upper part.
An annular protrusion 11 is provided in contact with the annular protrusion 11, a plug screw 9 is carved in the upper part of the annular protrusion 11, and an opening 12 is formed at the upper end of the annular protrusion 11 extending substantially vertically. In this embodiment, the container body is a stainless steel vacuum double-walled liquid container, but it may also be a liquid container using a thermos flask.

The stopper 3 has an internally hollow threaded portion that is inserted into the opening 12 of the container body 2, and a grip portion that is forcefully fitted onto the upper end of the threaded portion. An annular packing 10 that comes into contact with the upper end of the annular protrusion 11 on the inner wall 6 of the container body 2 is provided on the outer periphery of the screwed-in lower end of the stopper, and a screw 9 for the stopper on the inner wall 6 is screwed onto the upper outer periphery of the annular packing. A plug body screw 13 to be attached is engraved. A heat insulating material is filled in the hollow interior of the screwed-in portion of the plug body 3.

The lid body 5 is also used as a cup, and includes a bottomed cylindrical lid body 14, a lid cover 15 that covers the body of the lid body,
It consists of a bottom cover 16 that covers the bottom part of the lid body.

The lid body 14 is integrally formed with a cylindrical body and a bottom body having an outer wall of the body and a step 17 at the lower end of the body, and a screw for the lid of the container body 2 is attached to the upper inner wall. A lid screw 18 is cut into the lid 8 to be screwed into the lid. The lid body 14 has an annular engagement piece 19 protruding from the outer periphery of the peripheral side wall of the bottom body, which is lower than the outer peripheral wall of the body. The lid body 14 has anti-rotation ribs 20, 20 protruding from the upper peripheral wall of the step 17 at a predetermined interval to restrict the movement of a lid cover 15 and a bottom cover 16, which will be described later.

The lid cover 15 is made of a metal material such as stainless steel and has a substantially cylindrical shape, and has an upper bent piece 21 at the upper end that is bent inward so as to fit into the opening of the lid body 14 from the outside, and an upper bent piece 21 at the lower end. A lower bent piece 22 that is bent inward so as to abut the lower wall of the step 17 is integrally molded.

A plurality of grooves 23, 23 corresponding to the anti-rotation ribs 20, 20 of the lid body 14 are carved in the lower circumferential end of the lower bent piece 22 of the lid cover 15. The lower bent piece 22 having the grooves 23, 23 of the lid cover 15 is located inside at the position where the anti-rotation rib 20 is inserted into each groove with the upper bent piece 21 fitted to the opening of the lid body 14. The bent step 17 is in contact with the lower wall.

The bottom cover 16 is formed by integrally molding a low cylindrical side wall portion and a bottom surface portion, and a single annular groove 24 for locking the annular engagement piece 19 of the lid body 14 is provided on the inner periphery of the side wall portion. The upper end of the side wall of the bottom cover 16 has a plurality of grooves 25, 25 corresponding to the anti-rotation ribs 20, 20.
is installed. The bottom cover 16 is constructed by fitting the upper bent piece 21 of the lid cover 15 into the opening of the lid body 14, bending the lower bent piece 22 of the lid cover along the step 17 of the lid body 14, and forming the rotation prevention rib 20 of the lid body. , 20 into each groove 23 of the lid cover 15,
23, each groove 2 of the bottom cover 16
5, 25 includes ribs 20 for preventing rotation of the lid body 14,
20 while aligning the annular engagement piece 1 of the lid body 14.
9 is forcefully fitted into the annular groove 24 of the bottom cover 16.

<Effects of the invention> According to the invention, a cylindrical lid body with a bottom is provided, and a lid cover is provided, the upper end of which fits into the opening of the lid body, and the lower end of which is bent toward the inside of the lower end of the body of the lid body. Since the bottom cover is simply fitted to the bottom of the lid body, the structure is very simple and can be assembled very easily, and it can be mass-produced on the production line without any problems, and the cost can be significantly reduced.

In addition, the lower end of the lid cover is held down by the lid body and the bottom cover in a sandwich-like manner, and the bottom cover is force-fitted into the lid body, so the lid body, lid cover, and bottom cover can be reliably connected. .

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, and FIG. 2 is an assembled perspective view showing the main parts of the present invention. DESCRIPTION OF SYMBOLS 1... Liquid container, 2... Container body, 3... Stopper, 4... Shoulder, 5... Lid, 6... Inner wall, 7...
...Outer wall, 8...Screw for lid body, 9...Screw for plug body,
11... annular projection, 13... plug screw, 14...
Lid body, 15... Lid cover, 16... Bottom cover,
17... Step, 18... Lid body screw, 19... Annular engagement piece, 20, 20... Anti-rotation rib, 21...
...Top folded piece, 22...Bottom folded piece, 2
3, 23... Concave groove, 24... Annular groove, 25, 25
……groove.

Claims (1)

[Scope of utility model registration request] In a lid body of a liquid container in which a lid body made of synthetic resin is provided to cover the opening of the liquid container body, and a metal lid cover is fitted around the outer periphery of the lid body, there is a lid body made of synthetic resin that covers the mouth of the liquid container body, and a metal lid cover is fitted on the outer periphery of the lid body. A bottom part with a bottom having a step is integrally molded with the wall, and a ring-shaped engagement piece is provided on the outer periphery of the peripheral side wall of the bottom part, while an upper folding piece is formed by bending one end inward and fitting into the opening of the lid body. A cylindrical lid cover is provided, the other end of which is bent inward and has a lower bent piece that abuts the stepped lower wall of the lower end of the trunk, and a bottom cover that covers the bottom body of the lid body, and the inside of the annular side wall of the bottom cover is provided. 1. A lid for a liquid container, characterized in that a single annular groove is provided around the periphery for locking an annular engagement piece of the lid body.