JPH0232195Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of the Invention The present invention relates to a structure for preventing lifting of an annular body placed on the lower end curling portion of a metal exterior body.

(b) Prior art and its problems Conventionally, in containers such as air pots, a medium bottle is housed inside a metal exterior body, and a resin bottom body that supports the medium bottle is fixed to the bottom of the exterior body. are provided in various ways. When fixing this bottom body to the exterior body, the lower end of the exterior body is wound inward to form a curling part, and a resin annular body with a female thread on the inside is placed on this curling part. A common method for fixing is to screw the bottom body onto the female thread of this annular body.

However, since the annular body is simply placed on the curling part, there was a problem that when the bottom body was screwed on, the annular body rose up from the curling part and did not smoothly screw together with the bottom body. .

(c) Purpose of the invention The present invention has been made in view of the above-mentioned drawbacks of the conventional art. To provide a structure for preventing an annular body from lifting up from a curling part when bodies are screwed together, and allowing a bottom body to be easily and smoothly screwed on.

(d) Structure of the device In order to achieve the above object, the present invention includes a ring-shaped body placed on a curling part formed by inwardly winding the lower end of a metal exterior body, and a ring-shaped body mounted on the inner surface of this ring-shaped body. In a container having a bottom body screwed into a female screw, and a panel extending to the lower end of the outer surface of the exterior body, an engaging claw that protrudes into the exterior body is integrally provided near the lower end of the panel facing downward. The lower end of the claw is brought close to or in contact with the upper surface of the annular body, so that the claw portion restricts the floating of the annular body.

(E) Description of the Embodiment The drawing shows an example in which the present invention is applied to an air pot, and inside the metal exterior body 1 constituting the air pot body, there is a double-ended magic device having openings 2a and 2b at the upper and lower ends. The upper end opening 2a of the inner bottle has a metal shoulder body 3 and a reinforcing plate 4 fixed to the upper end of the exterior body 1, and a mouth ring 7 and mouth rubbers 5, 6 are attached to the upper end opening 2a of the middle bottle. It is supported and fixed through. A connecting gasket 8 is tightly fixed to the lower end opening 2b of the medium bottle 2, and a water level pipe 1 is connected to the connecting gasket 9 through a connecting tube 9 and a connecting tube 10.
The lower end of 1 is connected. In addition, water level pipe 11
The upper end of the water level pipe 11 is connected to the communication port 7a of the mouth ring 7 via the connecting tube 12, and the upper and lower ends of the water level pipe 11 communicate with the inside of the medium bottle 2. A water quantity display panel 13 with a transparent window plate 14 fitted onto the front surface of the exterior body 1 is attached by hooking the claw portion 15 into a hole (not shown) in the exterior body 1 and sliding it downward. The water level in the water level pipe 11 is increased by the window plate 14.
It is visible from the outside through the

A water lift pipe 21 and a water injection pipe 22 are installed in the center hole of the shoulder body 3.
An inner stopper 20 is fitted therein, and a lid body 23 provided on the upper part of the shoulder body 3 so as to be freely openable and closable is in close contact with the upper surface of the inner stopper via a seal packing 24. And an air pump 25 built into the lid body 23
By compressing the air, pressurized air is sent into the medium bottle 2 through the seal packing 24 and the inner stopper 20, and the liquid inside the medium bottle is poured out to the outside through the water pumping pipe 21 and the water filling pipe 22. It's getting old.

A water pipe cover 30 is attached to the front part of the exterior body 1 by hooking upper and lower claw parts 31, 31, and this water pipe cover 30 allows a water pipe cover 30 to be attached to the water pipe cover 30 to extend the spout 22a of the water injection pipe 22 downward. Water pipe 37
is covered and protected. That is, the upper end of the water pipe 37 is fitted onto the cylinder part 32 hanging from the upper end of the water pipe cover 30, and the claw part 38 integrally formed on the lower end of the water pipe 37 is attached to the lower end of the exterior body 1 described below. It is engaged with an engaging claw 43 formed on the front panel 40 leading to the front panel 40, and is prevented from coming off downward. Further, on the inner surface of the lower end of the water pipe cover 30, a flat plate-shaped overlapping portion 3 is provided.
4 is provided.

At the front of the exterior body 1, the above-mentioned water pipe cover 30
A front panel 40 is attached below by hooking the claw portion 41 into a hole (not shown) in the exterior body 1 and sliding the lower part of the front panel 40 downward to the lower end of the exterior body 1. . Front panel 4
A flat plate-like overlapping part 42 is formed at the upper end of 0.
This overlapping portion 42 overlaps with the inside of the overlapping portion 34 of the water conduit cover 30 and is connected in the vertical direction. The engaging claw 43 is provided protruding from the outer surface of the overlapping portion 42, and when the overlapping portion 42 is overlapped with the overlapping portion 34, the engaging claw 43 projects inward from the opening 33 formed in the overlapping portion 34. .

A middle bottle protector 50 is fitted to the outer surface of the lower part of the middle bottle 2, and the lower end cylindrical part 51 of this middle bottle protector is in close contact with the outer peripheral surface of the lower end opening 2b of the middle bottle 2, and this lower end cylindrical part The upper end of the connection gasket 8 is fitted onto the outside of the connection gasket 51 . A stepped portion 52 is protruded from the outer periphery of the lower end of the medium bottle protector 50, and by fitting the tightening body 53 to the outer periphery of the stepped portion 52, the medium bottle 2 is inserted through the medium bottle protector 50. The lower end opening 2b of is positioned at the center position. This tightening body 53 has a jig engaging part 54 on the inner circumference, and a jig (not shown) can be engaged with this engaging part and screwed into the central threaded part 57 of the bottom body 56. This tightens the bottom of the medium bottle 2 and presses the top opening 2a of the medium bottle 2 onto the mouthpiece 6 in a water-tight manner. The bottom body 56 is an annular body 6 having a female thread 60a attached to the inner surface of the lower end of the exterior body 1.
0 and is prevented from rotating with a set screw 61.

This annular body 60 is placed on the curling part 1a that is formed by inwardly winding the lower end of the exterior body 1.
Rotation is prevented by a bevel part 1b formed on the back surface of the holder. As shown in FIG. 4, the upper surface of the annular body 60 is close to the tip of the claw portion 41 of the front panel 40, leaving a small distance .delta.. Therefore, the male screw 56a of the bottom body 56 is connected to the female screw 60 of the annular body 60.
When the bottom body 56 is screwed into the bottom body 56, the annular body 60 comes into contact with the claw portion 41 and is prevented from lifting up, allowing smooth screwing of the bottom body 56. Note that the claw portion 41 and the annular body 60 may be in contact with each other when the front panel is attached.

A flexible packing 58 is attached to a connecting tube passage hole 57 provided in the bottom body 56 to provide a watertight seal between this passage hole and the connecting tube 9. Therefore, even if the middle bottle 2 is accidentally broken, the liquid inside is blocked by the bottom body 56 and will not leak out to the outside. A claw portion 64 of a flat rotary bottom 63 is rotatably fitted into a claw portion 59 provided vertically on the lower surface of the bottom body 56, and this rotary bottom 63 is connected to a connecting gasket 8 protruding from the bottom of the bottom body 56. It also covers the lower surface of the connecting pipe 9.

Note that the claw portion 41 in the present invention may be provided not only on the front panel but also on the water amount display panel.

(f) Effects of the invention As described above, according to the invention, the claw portion of the panel attached to the outer surface of the exterior body is inserted into the interior of the exterior body, and the claw portion is brought close to or in contact with the upper surface of the annular body. Therefore, when the bottom body is screwed together, the annular body does not lift up, and the bottom body can be smoothly screwed together, resulting in good assembly workability. Further, since no separate parts are required for positioning the annular body, the structure can be simplified, and the cost is low because a conventional annular body can be used.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the air pot according to the present invention, and FIGS. 2 and 3 are the - of FIG.
4 is an enlarged view of a portion of FIG. 2. 1... Exterior body, 1a... Curling part, 2...
Medium bottle, 40... Front panel, 41... Claw portion (protrusion), 56... Bottom body, 60... Annular body, 60a...
...Female thread.

Claims (1)

[Scope of utility model registration request] The annular body is placed on the curling part that is wound inward at the lower end of the metal exterior body, and the bottom body is screwed into the female screw provided on the inner surface of this annular body, and the bottom body is screwed onto the lower end of the outer surface of the exterior body. In containers with panels that extend
An annular body characterized in that an engaging claw protruding into the exterior body is integrally provided near the lower end of the panel facing downward, and the lower end of the claw is brought close to or in contact with the upper surface of the annular body. Anti-lifting structure.