JPS6028362Y2 - thermos - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a thermos flask, and more specifically, to a thermos flask in which a water pump can be secured to the lid.

A bellows-type air pump is installed inside the lid provided at the top of the thermos bottle body, and by introducing outside air into the middle bottle inside the thermos main body through the air pump, the internal pressure inside the middle bottle is increased. A thermos flask is known in which hot water can be drawn from the inside of the medium bottle through a water pipe formed integrally with a stopper that is removably fitted into the water supply port at the top of the medium bottle. In conventional thermos flasks, when supplying hot water to the medium bottle, you have to open the lid, pull out the water pipe together with the stopper from the water supply port, and supply hot water into the medium bottle.
Either you have to hold it with one hand, or you have to leave it around before refilling it with water; in the former case, you have to lift the kettle etc. with just your other hand to refill it, creating an unstable situation. Either it is easy to spill boiling water and it is difficult to supply water safely or easily, or the hot water may splash and cause burns, which is a dangerous situation. The drawback was that water pipes could be damaged by stepping on them.

The present invention was devised to eliminate these drawbacks in view of the above-mentioned circumstances, and its purpose is to connect the water pipe that has been removed to supply hot water to the medium bottle with the lid. To provide a thermos flask capable of supplying hot water reliably, hygienically, and safely in a stable state.

To explain the configuration of the present invention with reference to an embodiment shown in the drawings, 1 is a cylindrical thermos body;
A brewing part 2 is formed protruding from one side of the upper open end, and a lid body 3 that covers the above-mentioned brewing part 2 and the main body 1 in an openable and closable manner is pivotally attached to the other side via a pivot part 3a. There is.

Reference numeral 4 denotes a medium bottle housed within the main body 1, and an inner stopper 6 is removably fitted into a freezing opening 5 at the upper end of the medium bottle 4 facing the open end of the main body 1.

Reference numeral 7 denotes a water pumping pipe that is formed integrally with the inner stopper 6, and when the inner stopper 6 is fitted into the water supply port 5, the lower end of the water pumping pipe 7 is located near the bottom of the inner bottle 4. The upper end of the hanging waist is folded back and inserted into a guide hole 8 formed in the exudation part 2 so that hot water can be poured into it.

On the other hand, a bellows-type air pump 9 is installed inside the lid 3, and the air pump 9 pumps outside air taken into the air pump 9 by pressing a pressure plate 10 provided on the top surface of the lid 3. , is press-fitted into the medium bottle 4 via the medium stopper 6.

Reference numeral 11 denotes a locking tool provided on the inner surface of the lid 3, and one end of the locking tool 11 is connected to the opening 3 formed on the outer peripheral surface of the lid 3.
b, protrudes outward to form an actuating piece 12, and the other end extends along the top surface of the brewing part 2 to the tip side of the brewing part 2, and the extending end is further bent downward to form a lid. A locking protrusion 13 is formed that protrudes from the bottom surface of the body 3 by a predetermined amount, and the lower end of the locking protrusion 13 is engaged with a locking groove 14 provided in the exudation part 2 when the lid body 3 is closed. A locking pawl 15 is formed.

The locking pawl 15 is normally biased in the direction of engagement with the locking groove 14 via the biasing device 16 interposed between the lid body 3 and the locking tool 11. The actuating piece 12 is attached to the auxiliary ammunition 1.
6, the locking tool 11 is pressed against the air pump 9.
By moving to the side, the engagement between the locking groove 14 and the locking pawl 15 is released, and the lid body 3 can be opened.

Further, when the engagement between the locking groove 14 and the locking pawl 15 is released and the lid body 3 is tilted rearward about the pivot 3a to open the main body 1 and the exudation part 2, The engaging protrusion 13 has a shape that can be engaged with the attachment part of the water pumping pipe 7 and the inner stopper 6 which is integrally removed from the water supply port 5 of the middle bottle 4, or the bent part of the water pumping pipe 7. It has become.

The lower end of the engaged water pipe 7 is aligned with the maximum capacity water level of the medium bottle 4.

17 is a protective member made of synthetic resin attached to the lower end of the water pumping pipe 7.

The operation of the present invention constructed as described below will be explained.

When using a thermos flask, first place a bowl or the like below the brewing part 2 and press the press plate 10, then the outside air in the air pump 9 will be forced into the inside bottle 4 through the inner stopper 6, and the inside will flow. The pressure inside the bottle 4 rises, and in conjunction with this, the hot water in the middle bottle 4 flows through the water pipe 7.
As with the conventional method, the hot water is immediately drawn out through the bowl and can be poured into the bowl.

On the other hand, when the hot water in the medium bottle 4 runs out, the actuating piece 12
After pressing the button to release the engagement between the locking groove 14 and the locking pawl 15, the lid body 3 is rotated upward about the pivot 3a to open the main body 1 and the exudation part 2. and then water inlet 5
Water is supplied after removing the inner stopper 6 from the lid, but in the present invention, the removed inner stopper 6 and the water pumping pipe 7 are connected to the engagement protrusion 13 that protrudes below the bottom surface of the lid body 3. Since water can be supplied after locking, there is no need to supply water while holding the water pipe 7 with one hand, or to supply water while leaving it in the surroundings.

Therefore, even when water is being supplied from a heavy kettle or the like, water can be supplied while holding the kettle or the like with both hands, and the water supply work can be carried out hygienically, safely and easily without crushing the water pipe 7.

Furthermore, if the water supply is stopped when the water level rising as hot water is supplied into the medium bottle 4 reaches the lower end position of the water pipe 7, the amount of hot water in the medium bottle 4 will be exactly that of the medium bottle 4. Since the capacity matches the maximum capacity, hot water will not inadvertently overflow when water is supplied or when the inner stopper 6 is turned on due to a misjudged water supply amount, and hot water supply work can be carried out safely.

Furthermore, since the lower end of the water pipe 7 is inserted into the medium bottle 4 during water supply, this serves as a guide for the hot water to flow down, so that the hot water does not scatter around.

Furthermore, if a colored protection member is attached to the water pipe, it is convenient because the water level of the medium bottle at its maximum capacity can be more easily confirmed.

In short, the present invention provides a bellows-type air pump device on the lid rotatably attached to the upper end of the thermos bottle body, and an inner stopper that can be connected in communication with the air pump device is fitted into the water inlet of the medium bottle. However, in a thermos flask in which the inner stopper is equipped with a water pipe for pumping out hot water from the inner bottle, the inner surface of the lid body has a lock formed at the bottom of the tip side of the brewing part of the thermos body when the lid body is closed. A retaining protrusion that locks in the groove to close the lid body, and that when the lid body is opened, separates from the locking groove and is exposed in a protruding manner below the lid body that attaches to the exudation part side. In addition, a protective member is provided at the lower end of the water pipe, and the retaining protrusion is also used as a locking member for the water pump and the inner stopper that is removed from the water supply port when filling hot water into the medium bottle. Because it is a mark that indicates the maximum capacity water level of the medium bottle when the stopper and water pipe are locked to the engagement protrusion,
When supplying hot water to the medium bottle, if the lid is opened, the lid has an engaging protrusion that protrudes, so the removed inner stopper and water pipe can be locked to the engaging protrusion. Therefore, there is no need to supply water while holding the water pipe with one hand, or leave the water pipe nearby while supplying water, unlike in the past.
Therefore, hot water can be supplied in a stable hot water supply position, such as by being able to hold the kettle with both hands, thereby making it possible to supply hot water hygienically, safely and reliably.

Furthermore, when the water level rises during hot water supply and reaches the bottom of the water pipe inside the medium bottle, it corresponds to the maximum capacity of the medium bottle, which prevents accidental leakage due to overfilling. Moreover, if hot water from a kettle, etc. is passed through the water pipe during hot water supply, the water pipe acts as a guide for the hot water, so the hot water does not splash out and the hot water supply work is carried out safely. It is something that can be done.

[Brief explanation of the drawing]

The drawings show an embodiment of the thermos flask according to the present invention, and FIG. 1 is a perspective view of the entire thermos flask, FIG. is a perspective view of main parts. In the figure, 1 is a thermos bottle body, 3 is a lid, 4 is a medium bottle, 5 is a water supply port, 6 is an inner stopper, 7 is a water pump, 9 is an air pump, and 13 is an engaging protrusion.

Claims (1)

[Scope of utility model registration request] A bellows-type air pump device 9 is provided on the lid 3 rotatably attached to the upper part of the thermos bottle body 1, and an inner stopper 6 that can be connected in communication with the air pump device 9 is fitted into the water supply port 5 of the inner bottle 4. However, in a thermos flask in which the inner stopper 6 is provided with a water pipe 7 for drawing hot water from the inner bottle 4, the inner surface of the lid 3 has the tip of the brewing part 2 of the thermos flask body 1 when the lid 3 is closed. A lid body that locks into a locking groove 14 formed on the lower side to close the lid body 3, and when the lid body 3 is opened, leaves the locking groove 14 and attaches to the exudation part 2 side. Retaining protrusion 1 that is exposed in a protruding manner below 3
3, the engaging protrusion 13 is also used as a locking member for the water pumping pipe 7 and the inner stopper 6 that is removed from the water supply port 5 when hot water is supplied to the medium bottle 4, and a protective member is provided at the lower end of the water pumping pipe 7. 17,
A thermos flask characterized in that the protective member 17 is used as a mark to indicate the maximum capacity water level of the inner bottle 4 when the inner stopper 6 and the water pumping pipe 7 are engaged with the engaging protrusion 13.