JPS5846769Y2 - liquid container - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a portable liquid container for keeping liquid warm or cold.

Generally, in this type of liquid container, the inner container is connected to the shoulder member of the main body case via a threaded ring screwed onto the neck of the inner container.

However, the lid body is normally screwed onto the screw ring, and since the screw ring has a double screw structure, the screw ring and the neck of the inner container cannot be screwed together by repeatedly attaching and detaching the lid body. This may cause the inner container to become loose, causing the inner container to wobble.

The present invention prevents the inner container from wobbling by preventing the threaded part between the neck of the inner container and the screw ring from loosening during use, thereby providing a liquid container that can withstand long-term use. The purpose is to

Hereinafter, a liquid container according to an embodiment of the present invention will be described with reference to the accompanying drawings.

This liquid container consists of a main body case 1 and an inner container 2 disposed within the main body case 1 with a heat insulating material 3 in between.
The liquid W is kept warm or cold within the inner container 2.

The main body case 1 includes a shoulder member 4 and a bottom member 5 made of synthetic resin.
and are connected by a body member 6 made of a metal plate.

A receiving hole 7 is formed in the center of the shoulder member 4, into which a screw tongue 8, which will be described later, is fitted.

The inner container 2 is integrally made of a blow molded product of synthetic resin such as polypropylene.

At the center of the upper part of the inner container 2, there is a neck 9 that constitutes the liquid supply port 10.
are integrally protruded.

On the outer periphery of the neck portion 9, an external thread 11 is formed on the upper side and a large number of engaged protrusions 12, 12, . . . are formed on the lower side.

The upper surface 12a of the engaged protrusion 12 has an upward slope in the direction A of screw rotation of the screw ring 8 screwed onto the jaw 9 (see FIG. 2).

The screw ring 8 is composed of a cylindrical body made of synthetic resin, and an inner thread 13 and an outer thread 14 are formed on the inner and outer peripheral surfaces thereof, and the thread ring 8 is attached to the inner container neck 9 at the lower end. When screwed, the projections 12, 12...
An appropriate number of engaging protrusions 15, 15, . . ., which engage with .

This threaded ring 8 is fitted into the receiver 7 of the shoulder member 4, and is locked to the shoulder member 4 by locking an annular protrusion 16 protruding from its outer periphery to the peripheral edge 7a of the receiver 7.

Thus, the inner container 2 is coupled to the shoulder member 4 by screwing the inner thread 13 of the screw ring 8 onto the outer thread 11 of the neck portion 9.

At the end of screwing, the retaining protrusion 15.1 of the screw ring 8
5... is the engaged protrusion 12°12 of the inner container neck 9
. . . to form a force-fitted state and prevent the screw ring 8 from loosening.

At this time, the upper surface 12 of the protrusion to be engaged 12.12...
By making a slope upward in the screw rotation direction A of the screw ring 8, it is made easier for the locking projections 15, 15, . There is.

Incidentally, if the lower end surface of the engagement protrusion 15 is sloped downward in the screw rotation direction A of the screw ring 8, the screw ring 8 can be screwed in more easily.

Further, a flange portion 17 is integrally formed on the inner peripheral edge of the upper end of the screw ring 8.
When the screwing is completed, the seal 1 is attached to the upper end of the inner container neck 9.
8.

Reference numeral 19 indicates a lid that is screwed onto the outer thread 14 of the screw ring 8, 20 indicates a tea kettle, and 21 indicates an inner tip.

Furthermore, an opening/closing cock 22 that projects near the bottom of the inner container 2 is attached to an appropriate location on the bottom member 5.

The opening/closing cock 22 has a cock body 23 having a passage 25.
and a plug body 24 for opening and closing the passage 25, and is fixed by a nut 26 screwed onto the inner end of the cock body 23.

In this embodiment, the bottom surface 2a of the inner container 2 is provided with an inclined surface 27 that slopes downward in the direction of the opening/closing cock 22 near the mounting area of the opening/closing cock 22, so that the opening/closing cock can be mounted at the inner bottom of the inner container 2. A concave portion 28 is formed near the portion.

By doing this, when installing the opening/closing cock 22,
This makes it easier to tighten the nut 26, and also reduces the amount of liquid remaining when it is desired to drain the liquid W in the inner container 2.

In addition, the reference numeral 29 is a handle, and the reference numeral 30 is a foldable leg.

The shapes of the engaged protrusion 12 of the inner container neck 9 and the engaging protrusion 15 of the threaded ring 8 are not limited to the above-mentioned embodiments, and it goes without saying that the designs can be changed as appropriate.

Next, the effects of the liquid container of the present invention will be described.

That is, according to the present invention, an appropriate secured protrusion 12 is formed at the lower end of the outer periphery of the jaw portion 9 of the inner container 2, and a screw ring is provided for connecting the inner container 2 and the shoulder member 4 of the main body case 1. 8 is formed with a locking projection 15 that engages with the locking projection 12, and when the screw ring 8 is screwed, the locking projection 12 and the locking projection 15 are engaged with each other, and the screw ring 8 is tightened. Since it is designed to prevent loosening, it is possible to prevent rattling due to loosening of the joint of the inner container 2.
This has the effect of providing a liquid container that can withstand long-term use.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional side view of a liquid container according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of a main part of the liquid container of FIG. 1...Main case, 2...Inner container, 4
...Shoulder member, 8...Screw ring, 9.
... Neck, 12 ... Engaged projection, 15.
...Engaging protrusion.

Claims (1)

[Scope of utility model registration request] The shoulder member 4 constituting the upper part of the main body case 1 and the inner container 2 disposed in the main body case 1 are coupled via a screw ring 8 screwed onto the neck 9 of the inner container 2, and the neck A suitable protrusion 12 is formed on the lower end of the outer periphery of the screw ring 9, and a protrusion 12 is formed on the lower end of the screw ring 8 to engage with the protrusion 12 during screwing and prevent the screw ring 8 from loosening. A liquid container characterized in that a locking protrusion 15 is formed.