JPH0240917Y2 - - Google Patents

Description

[Detailed description of the invention] This invention has both an outer shell part and an inner shell part made of stainless steel plates, a vacuum between the outer shell part and the inner shell part, and a structure in which the outer shell part is exposed to the outside. This invention relates to a stainless steel thermos flask having a vacuum double container configured as follows.

Some of this type of stainless steel thermos flasks are equipped with reinforcing corrugations to strengthen the outer shell of the vacuum double container.
It is known from publications such as Publication No. 11286 and Publication No. 5987 of 1987. As shown in Fig. 5, this has a structure in which the outer shell part a is provided with a large number of annular reinforcing corrugations b, b... facing in the circumferential direction, and these reinforcing corrugations b, b... It was completely circular with no missing parts.

However, even if the reinforcing corrugation of the above-mentioned conventional example can reinforce the necessary range of the outer shell of the container, many of the parts where the unevenness protrudes from the outer surface of the container are susceptible to damage due to contact with other objects. For this reason, even if a cutout is provided on the outer shell of the container for the purpose of displaying an external display, the display may become difficult to see due to scratches caused by the contact.

Therefore, an object of the present invention is to provide a stainless steel thermos flask that eliminates the above-mentioned drawbacks, is reinforced over its entire length, and is capable of displaying a highly effective external display over its entire length.

In order to achieve the above object, the present invention has a large number of holes in the outer shell part facing in the circumferential direction and having a cutout part at a radial position perpendicular to the radial direction in which the suspension string connection part of the vacuum double container is provided. An annular reinforcing corrugation is formed so that its unevenness continues repeatedly between both ends of the vacuum double container, and the missing part forms a continuous display part in the longitudinal direction of the vacuum double container. Both end portions are characterized by being formed higher than both the reinforcing corrugation and its missing portion.

The present invention will be specifically described below based on embodiments shown in the drawings.

In the first embodiment shown in FIGS. 1 and 2, a synthetic resin shoulder 2 is attached to one end of a stainless steel vacuum double container 1.
A bottom member 3 made of synthetic resin is fixed to the other end by force fitting, and caps 4 and 5 which also serve as caps are removably screwed to the shoulder member 2 and the bottom member 3, respectively. A screw stopper 7 is removably screwed into a bottle opening 6 of a container 1.

Both the outer shell part 8 and the inner shell part 9 of the vacuum double container 1 are formed of stainless steel plates, and a space 30 between the outer shell part 8 and the inner shell part 9 is kept under vacuum. The outer shell portion 8
Most of it is exposed to the outside, except for one end 10 covered by the shoulder member 2 and the other end 11 covered by the bottom member 3.

As shown in FIGS. 1 and 2, the outer shell portion 8 has cutout portions 12, 12 that face in the circumferential direction and partially have missing portions 12, 12.
A large number of annular reinforcing corrugations 1 having
3, 13... (Here, reinforcing corrugations refer to recesses or protrusions that are press-formed on the plate material in order to reinforce the strength of the plate material.) Moreover, the missing portion 1 of the reinforcing corrugation 13, 13...
2, 12... are formed so as to be aligned in the longitudinal direction.

In this embodiment, the reinforcing corrugation 13
are formed into grooves, and each reinforcing corrugation 13
The cutout portions 12, 12 are located at the front and rear surfaces of the vehicle. In this way, display parts (smooth parts) 14a, 14 obtained by aligning the missing parts 12 of each reinforcing corrugation 13
b is formed at two locations on the front and rear surfaces of the outer shell portion 8. Seals 15a, 15b on which letters, numbers, etc. are printed are affixed to these display sections 14a, 14b.

At the upper and lower portions of the inner end ring portion 16 of the shoulder member 2, locking holes (hanging strap connecting portions) 17a and 17b are provided, respectively, for locking the shoulder strap, and the inner end ring portion 18 of the bottom member 3 is provided with locking holes (hanging strap connecting portions) 17a and 17b. A locking hole (hanging strap connecting portion) 17c for locking the shoulder strap is also provided at the upper part of the strap. Note that these inner end ring portions 16, 18
form both ends of the outer shell portion 8 exposed to the outside, and these ends are reinforced with corrugations 13,
13... and the missing portion 2 thereof. Therefore, the uneven outer surface is protected from contact with other objects, and the seals 15a, 15a attached to the cutout portion 12 are prevented from being scratched and soiled, and the display is prevented from becoming difficult to see.
Each of the cap tips 4 and 5 is provided with female threads 21 and 22 which are screwed into the male threads 19 and 20 of the shoulder member 2 and the bottom member 3, respectively.
By screwing together screws 9, 22, 20, the tips 4, 5
can be removably attached to the shoulder member 2 and the bottom member 3, and ultimately to the thermos body. The screw stopper 7 has a male thread 24 that engages with a female thread 23 provided on the inner peripheral surface of the bottle opening 6 of the vacuum double container 1, and can be opened by loosening the female and male threads 23 and 24. It has a liquid passage groove 25 on the side peripheral surface. In addition, 26 is Patsukin, 27 is O
The ring 28 is an inwardly protruding ring portion for seating the O-ring 27, and 29 is a heat insulating material.

In the second embodiment shown in FIGS. 3 and 4, the reinforcing corrugations 13, 13, . In this example, each reinforcing corrugation 13
There are two missing parts 12, 12 on the front and rear parts of
However, display parts 14a, 14b obtained by aligning these missing parts 12, 12...
are provided with fitting recesses 31a, 31b, into which synthetic resin nameplates 32a, 32b are fitted. It is preferable to display three-dimensional patterns 33, 33 such as letters or designs on the nameplates 32a, 32b. In the drawings, common reference numerals are given to parts common to the first embodiment.

The present invention can be configured in various ways other than those shown in the above embodiments. In the embodiment described above, each reinforcing corrugation 13 is provided with two missing portions 12, 12, but these may be provided at one or three or more locations. In addition to forming all of the reinforcing corrugations 13, 13, . . . into grooves or ridges, it is also possible to alternately form grooves and ridges. Further, the display section 14 of the outer shell section 8
It is also possible to use other display means without pasting the sticker 15 on a, 14b, or to form a plurality of longitudinal corrugations. Further, in the above embodiment, the vacuum double container 1 is provided with a substantially cylindrical shape, but it is also possible to form the vacuum double container 1 into other shapes such as a substantially rectangular tube shape.

As mentioned above, the stainless steel thermos flask of the present invention has a notch in the outer shell of the vacuum double container facing in the circumferential direction and at a radial position perpendicular to the radial direction where the suspension string connection part of the vacuum double container is provided. A large number of annular reinforcing corrugations are formed in such a way that their irregularities continue repeatedly between both ends of the vacuum double container, and the missing portion forms a continuous display section in the longitudinal direction of the vacuum double container. Since both ends of the double container are formed higher than both the reinforcing corrugation and the missing portion thereof, the following effects can be achieved.

While reinforcing the entire length of the outer shell of the container, it is possible to display the display over the entire length without being obstructed by the reinforcing corrugations.Due to its position perpendicular to the hanging string connection position, the display section will not be visible when worn on the shoulder or in the hand. Coupled with facing outward, the effect of external display increases.

Since both the reinforcing corrugation and the cutout forming the display are lower than both ends of the container, they are protected from contact with other objects, and the display can be prevented from becoming difficult to see due to scratches or the like caused by contact.

[Brief explanation of the drawing]

Fig. 1 is a partially longitudinal front view of the first embodiment of the present invention, Fig. 2 is a sectional view taken along the line - - of Fig. 1, Fig. 3 is a perspective view of the second embodiment of the invention, and Fig. 4 is a partial longitudinal sectional view of the first embodiment of the present invention. FIG. 3 is a sectional view taken along the - line, and FIG. 5 is a partially cutaway front view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Vacuum double container, 8... Outer shell part, 9... Inner shell part, 12... Missing part, 13... Reinforcement corrugation, 14a, 14b... Display part, 16, 18
...Inner end ring part (both ends), 17a, 17b,
17c...Lock hole (hanging string connection part).

Claims (1)

[Scope of utility model registration request] Stainless steel having a vacuum double container in which both the outer shell and the inner shell are made of stainless steel plates, and the space between the outer shell and the inner shell is vacuumed, and the outer shell is exposed to the outside. In the thermos flask, a large number of annular reinforcing corrugations are provided in the outer shell portion, facing in the circumferential direction and having a cutout portion at a radial position perpendicular to the radial direction in which the suspension string connection portion of the vacuum double container is provided. , the unevenness continues repeatedly between both ends of the vacuum double container, and the missing portion forms a continuous display section in the longitudinal direction of the vacuum double container, and both ends of the vacuum double container are provided with reinforcing corrugations. A stainless steel thermos flask characterized by being formed higher than both the upper part and the missing part thereof.