JP2548924Y2 - Container with heating function - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial application field] The present invention is based on an exothermic chemical reaction.
The present invention relates to a container with a heating function that can heat various contents such as drinks.

[0002]

2. Description of the Related Art Conventionally, as a container having a heating function, for example, Japanese Utility Model Application No. 1-129160 (Japanese Utility Model Application Laid-Open No. 3-68840).
) Is known in the specification and drawings.

[0003] This conventional container comprises a container body filled with contents, a bottomed tubular reaction chamber containing a heating substance such as quicklime, a liquid container containing a reaction inducer, and a liquid container containing the reaction inducer. It has a push rod extending from the inside of the upper wall to the position close to the sheet, and a lid for closing the open end of the reaction chamber. A vent is formed in the liquid container to allow the reaction chamber to communicate with the outside.The lid has a through hole in the center that is large enough to allow a finger of a human hand to be inserted. The structure is sealed with a moisture-impermeable sheet that can be partially broken by the pressing force of a finger.

Therefore, when the protective cap is removed and the center of the lid is pressed, a part of the moisture-impermeable sheet is broken, and the pressing force is transmitted to the upper wall of the liquid container to move the upper wall, and the upper wall moves. The push rod protruding from breaks the sheet. Therefore,
The reaction inducer in the liquid container falls into the reaction chamber containing the exothermic substance, and an exothermic reaction is started to heat the contents.

[0005] Further, the pressure increased by the steam or the like generated by the exothermic reaction is discharged to the outside through a vent formed in the liquid container and a through-hole formed in the lid.

[0006]

As described above, the prior art has a structure in which the pressure in the reaction chamber is exhausted to the outside through the vent hole and the through hole. Of the liquid container is prevented only by folding the sheet provided at the end of the liquid container. For this reason, when the container body is placed with the lid down, the exothermic substance spills out from the wrinkled portion of this sheet to the inside of the lid through the above-described discharge path, and as described above, To heat the object, first open the protective cap with the lid on top, then push the moisture impermeable sheet of the lid to break a part of it and apply a pressing force to the push rod. If you put the lid on the bottom so that it can be easily transmitted to objects,
There is a problem that the exothermic substance may spill outside.

Further, when the container is subjected to a strong vibration or a drop impact during transportation or the like, the sharp corners of quicklime, which is a heat generating substance, may pierce the sheet and make a hole in the sheet. In this case, the reaction inducing agent falls into the reaction chamber from this hole to start an exothermic reaction. When the internal pressure is increased by this reaction, this pressure passes through the vent hole and the water-impermeable sheet provided on the lid. Squeezing from the inside and breaking,
There is a problem that the protective cap may be blown off.

In addition, as a structure for releasing pressure, a structure is adopted in which a through hole formed in a lid that is double-sealed around the container body is closed by bonding a moisture-impermeable sheet to the lid. In addition, there has been a problem that the manufacturing process becomes complicated and labor and cost are excessively increased.

The present invention has been made in view of the above problems, and can surely prevent the exothermic substance from spilling to the outside. Further, the present invention can protect even if an exothermic reaction occurs during transportation or the like. An object of the present invention is to provide a container with a heating function that is easy to manufacture without the cap being blown off.

[0010]

SUMMARY OF THE INVENTION According to the present invention, a linear and arc-shaped thin portion which is broken by pressure or pressure is formed on a lid, an inner ventilation hole is formed in an inducer container, and a protective cap is formed. In order to solve the above-mentioned problem, an outer ventilation hole is formed.

That is, in the container with a heating function of the present invention, the container body filled with the contents and one end of the container body are closed and housed inside the container body,
An opening end fixed to one end of the container body, a bottomed tubular reaction chamber containing a solid heating substance therein, and provided on the opening end side of the reaction chamber, on the outer periphery An annular vertical wall disposed with a gap between the reaction chamber and an inner periphery thereof, a sheet closing a bottom of the vertical wall, a container in an intermediate portion of the vertical wall, A triggering agent container having an upper wall formed to be displaceable in the axial direction of the main body and forming a chamber for accommodating the reaction triggering agent with the sheet, and extending from the inside of the upper wall to approach the sheet. A space between the push rod provided and the upper wall is formed to close the opening end of the reaction chamber, and when a pressing force is applied via a protective cap described later, the space extends toward the center of the container body. A first moving unit that moves and maintains the state as it is, and a pair of the first moving unit and an inner peripheral edge of an opening end of the reaction chamber is provided; A cover having an arc-shaped thin portion between the cover and a portion to be provided, and a portion provided outside the cover and facing at least the first moving portion is formed so as to be movable in the axial direction. A protective cap having a second moving portion, an inner passage formed in the vertical wall, and communicating with a space between the periphery of the reaction chamber and the outer periphery of the vertical wall and a space between the upper wall and the lid. An air hole, an outer air hole formed in the protective cap and communicating between the inside and the outside, and a second moving part of the protective cap formed so as to protrude toward the lid, and disposed at a position overlapping the push rod in the axial direction. And a linear thin portion formed on the first moving portion of the lid facing the projection, and a concave portion formed on the upper wall facing the thin portion.

[0012]

When the contents are to be heated, the second moving portion provided on the protective cap is pushed into the inside of the container body,
The protrusion formed on the second moving part presses the linear thin part provided on the first moving part of the lid by sandwiching it between the thin part and the recess on the upper wall. As described above, since the linear thin portion is sandwiched between the projection and the concave portion, a linear tear occurs in the thin portion,
The inside and outside of the lid are communicated. The broken piece sandwiching the linear split is bent toward the concave portion by the projection.

Then, when the second moving portion of the protective cap is further pushed in, the first moving portion of the lid moves into the container main body, and the central portion is protruded toward the center of the container main body. The upper wall of the agent container is pressed, and a push rod provided on the upper wall is pressed to break the sheet. Therefore, the reaction inducer contained in the liquid container falls into the reaction chamber, and the exothermic substance starts an exothermic reaction. This heats the contents of the container body. The first moving portion of the lid does not return to its original shape even when the pressing force is released.

When the exothermic substance causes an exothermic reaction, the pressure in the reaction chamber rises due to generation of water vapor and the like. This pressure is formed in the thin portion of the lid from the inner vent formed in the inducing agent container. After passing through the breach, it passes through the outer vent formed in the protective cap to the outside. in this way,
In the middle of the path for releasing the pressure, there is a tear formed in the thin part of the lid, so the pressure is released, but the first moving part of the lid has a shape in which the central part protrudes toward the center of the container body. Since the fractured portion is bent toward the center of the container body at the center rupture portion, even if the protective cap is turned down, fine heating substances do not spill out.

In addition, the exothermic substance may puncture the sheet due to strong vibration or impact during transportation of the container or the like, and the reaction inducer may leak into the reaction chamber. In such a case, the exothermic substance causes the exothermic reaction. When the internal pressure of the reaction chamber increases to a certain extent after starting, a crack is formed in the thin arc-shaped portion formed on the lid, pressure is released to the outside through the above-described path, and the protective cap has an outer ventilation hole. Therefore, the protective cap does not fly off and does not fly off.

[0016]

1 is a sectional view showing a container with a heating function according to an embodiment of the present invention.

As shown in FIG. 1, the container body 2 for storing the contents A for drinking is formed by deep drawing an aluminum alloy plate and then reverse drawing to form a reaction chamber 3 therein. The lid 16 with a can opening mechanism is double-tightened to the lower opening end in the figure, and the lid is double-tightened to the opening end of the bottomed cylindrical reaction chamber 3. Sealed.

The reaction chamber 3 is deeply immersed in the container body 2, and the outer surfaces of the bottom wall 3 b and the side wall 3 c are provided in contact with the contents A. A heating substance B made of quick lime that has been crushed into small pieces is accommodated in the inside of the reaction chamber 3, and a liquid container (inducing agent container) 7 is provided on the opening side at the upper end in the figure. It is housed in a state where a gap is maintained with the side wall 3c.

As shown in the detailed partial cross-sectional views of FIGS. 3 and 4, the liquid container 7 has an outer convex wall 8 forming an upper wall, a cylindrical side wall 7c, and an upper side wall 7c. The annular wall 7b extending to the side and the flange portion 9 extending outward from the upper end of the annular wall 7b are integrally formed of polypropylene resin or the like. Then, inside the liquid container 7, a reaction inducer C such as water is put, and an opening at the lower end in the side wall 7c is a sheet 10 formed of a thin aluminum foil having a thickness of 30 μm.
Is closed by pasting it with an adhesive.

Although the outer convex wall 8 is convex outward (FIGS. 1 and 3), a plurality of V-shaped groove dents 8a are formed at this location, and the wall is thin, so that it is pushed by a finger. As a result, the unevenness is easily inverted (FIGS. 2 and 4). In the center of the outer convex wall 8, projections 8b and 8c are formed vertically,
Recesses 8d and 8e are formed in these projections 8b and 8c, respectively, and a push rod 11 is fitted in the lower recess 8e.

FIG. 6 is a plan view of the push rod 11, FIG. 7 is a sectional view of the push rod, and FIG. 8 is a bottom view of the push rod. As shown in these figures, the push rod 11 has an upper end. A lateral arm 11a is formed in a Y-shape outward from the root, and three vertical arms 11b are suspended downward from the tip of the arm 11a. And diameter 1
A 4 mm circular cutting edge 11c is provided.

Returning to FIG. 3, the annular wall 7b of the liquid container 7 and the flange 9 are provided outside the outer convex wall 8 of the liquid container 7.
At two corners, two vent holes (inside vent holes) 7a are formed (see FIG. 5).

After the liquid container 7 is filled with the reaction inducer C, the opening is closed with the sheet 10,
Thereafter, the sheet 10 is inserted into the reaction chamber 3. At this time, as shown in an enlarged view in FIG. 4, the outer diameter of the sheet 10 is changed to the outer diameter of the lower end of the side wall 7 c and the side wall 3 c of the reaction chamber 3. Is larger than the inner diameter of the reaction chamber 3, when inserted into the reaction chamber 3, wrinkles approach the protruding portion of the sheet 10, and a portion that comes into contact with the side wall 3 c of the reaction chamber 3 and a portion that does not come into contact are formed. Although air and air can pass through, there is an advantage that fragments of the heat generating substance B are difficult to pass through.

Referring back to FIG. 1, reference numeral 12 denotes a lid made of an aluminum alloy which closes an opening 3a of the reaction chamber 3 by being wound around a connecting portion between the container body 2 and the reaction chamber 3,
As shown in FIG. 9 which is a partial sectional view,
A curved portion (first moving portion) 12a having a characteristic that it curves upwardly in the drawing and does not return to the original upwardly convex shape by being deformed downward by the pressing force from above as shown in FIGS. In addition, as shown in FIG. 10 which is a plan view of the lid 12, a thin portion (score) 12b having a linear shape of + is formed at the center position of the curved portion 12a. A plurality of arc-shaped thin portions 12c are formed on the outer peripheral portion of the portion 12a. When the container is subjected to strong vibration or drop impact, the arc-shaped thin portion 12c causes a sharp corner portion of quicklime to make a hole in the sheet to generate an exothermic reaction, and the pressure in the reaction chamber 3 is abnormal due to water vapor or the like. When it becomes higher, it breaks and serves to discharge water vapor and the like through the slit 15b of the protective cap 15. In addition, as shown in FIG. 1, the lower surface of the curved portion 12 a is arranged close to the projection 8 c of the outer convex wall 8. Further, the shape of the thin portion 12b is not limited to a + shape such as a Y, *, or I shape as long as it is linear.

Returning to FIG. 1, a protective cap 15 made of polypropylene is provided outside the lid 12. As shown in the sectional view of FIG. 11 and the plan view of FIG. 12, the protective cap 15 has slits (outer ventilation holes) 15b formed on three circumferences, and a central flat plate portion (second moving portion) 15d. Can be moved up and down. Also, on the lower side in the figure of the central portion of the central flat plate portion 15d,
The projection 15c is formed. The protrusion 15c
As shown in FIG. 1, is disposed near the center of the upper surface of the curved portion 12a so as to face the thin portion 12b.

Next, the operation of the embodiment will be described.

A) Heating When heating the contents A, the container main body 2 is oriented with the protective cap 15 facing upward as shown in FIGS. Press down.

Then, the central flat plate portion 15d moves downward due to the pantograph deformation of the slit 15b, and the projection 15c of the central flat plate portion 15d
2a is pushed down, the center of the curved portion 12a is recessed downward along the shape of the concave portion 8d of the projection 8b of the outer convex wall 8, and the thin portion 12b is torn in a positive linear shape.

Further, the central flat plate portion 1 of the protective cap 15
When 5 d is pressed down, a pressing force is applied to the outer convex wall 8,
This outer convex wall 8 is pushed down and dented downward as shown in FIGS. 2 and 4, and as a result, the push rod 11 is pushed down, and the cutting blade 11 c at the tip of the push rod 11 pushes the sheet 10 to a diameter of 14 mm. It breaks into a horseshoe shape with an arc.

At this time, in this embodiment, the vertical displacement of the curved portion 12a is set to 7 mm according to the degree of curvature of the curved portion 12a of the lid 12 closing the reaction chamber 3, so that the movement of the push rod 11 is set. The distance also becomes 7 mm (conventionally, it was about 12 mm. In addition, the setting of the amount of vertical displacement is performed by increasing the reaction force when it is attempted to decrease the amount by more than the set value). As described above, since the push-down distance is shortened in a range where the sheet 10 can be broken, the instability of "I do not know how much to lower the seat" is alleviated and a moderation feeling is provided. This prevents operation errors.

When the sheet 10 is ruptured as described above, the reaction inducer C flows down into the reaction chamber 3 to cause the exothermic substance B to generate heat. In the case of this example, the reaction inducer C
Is a drop that surely falls from the hollow portion inside the cutting blade 11c having a diameter of 14 mm of the push rod 11. For example, in the case of water, if the hole has a diameter of 8 mm or more, the gap between the broken portion of the sheet 10 and the push rod is The film falls reliably without stretching the film between surfaces due to surface tension. Thus, the shape (circular) of the cutting edge 11c
Based on the size and the diameter (14 mm in diameter), even with a small stroke amount, the reaction inducer C can be reliably dropped to the center of the exothermic substance B, and a stable exothermic reaction can be obtained.

In this way, the sheet 10 by the pressing operation is
Of the container body 2 so that the lid 16 faces upward
Is turned upside down, and when the content A is heated by the heat of the exothermic reaction between the exothermic substance B and the reaction inducing agent C, the lid is opened and the content A is drunk.

When the exothermic substance B causes an exothermic reaction, the pressure in the reaction chamber 3 increases due to generation of water vapor and the like, but this pressure is reduced by the inner circumference of the reaction chamber 3 and the side wall 7 of the liquid container 7.
c, the air is transmitted between the lid 12 and the outer convex wall 8 from the ventilation holes 7a formed at two places of the liquid container 7, and then split into a positive linear shape at the center of the lid 12. Thin part 1
After passing through 2b, it passes through the slit 15b of the protective cap 15 and goes outside.

In the state where the container body 2 is placed so that the lid 12 is on the lower side, the central portion of the lid 12 is in a state of being convexly curved upward, and furthermore, has a cross shape at the center (center) thereof. Each of the four fractured pieces is bent upward, so even if the heat-generating substance B, which has been crushed small through the pressure release path, accumulates on the outer peripheral portion of the lid 12, the fracture of the lid 12 Do not fall from the part. Therefore, the exothermic substance B does not spill out of the protective cap 15 to the outside.

B) During transportation and the like The container with a heating function is subjected to strong vibration or impact during transportation or the like, so that sharp corners of the exothermic substance B penetrate the sheet 10 to make a hole, and the reaction inducing agent C is supplied to the reaction chamber. 3 may leak inside. In such a case, the exothermic substance B starts an exothermic reaction to generate water vapor, but when the internal pressure of the reaction chamber 3 increases to some extent, the arc-shaped thin portion 12c formed on the lid 12
Is linearly split in the portion and escapes through the above-mentioned path to the outside. Therefore, the protective cap 15 does not fly off, and the lid 12 does not blow away. Such an operation / effect is also effective when a container is accidentally dropped from a display shelf at a store.

Although the embodiment has been described with reference to the drawings, the specific configuration is not limited to this embodiment.

For example, the first moving portion of the protective cap is
In the embodiment, the slits are formed so as to move in a pantograph shape. However, the slits may be moved in the axial direction by other means for increasing elasticity. Therefore, the outer ventilation hole may be a simple hole instead of a slit.

[0038]

As described above, in the container with a heating function according to the present invention, an inner ventilation hole is formed in the reaction inducer container, an outer ventilation hole is formed in the protective cap, and a linear lid is formed in the lid. A thin portion is formed, and when the protective cap is pressed down, the thin portion is sandwiched between the projection of the protective cap and the concave portion formed on the upper wall, and the projection is formed so that the thin portion is broken. At this time, the central part of the lid is convexly curved toward the center of the container body and keeps the shape as it is, so the pressure in the reaction chamber can be released, but fine exothermic substances spill out to the outside Is obtained. In addition, if the exothermic substance causes an exothermic reaction due to an accident such as an impact input during transportation of the container, etc., the internal pressure of the reaction chamber causes a crack in the arc-shaped thin portion of the lid. The protective cap is discharged to the outside through the outer ventilation hole, and the protective cap does not fly. further,
The processing of the lid only forms a thin part of a line and an arc, and there is no need for punching for opening the through-hole or sealing work to close the through-hole. Can be achieved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an entire container with a heating function according to an embodiment.

FIG. 2 is a cross-sectional view illustrating the entire state of the container with a heating function according to the embodiment when the container is heated.

FIG. 3 is an enlarged sectional view showing a liquid container of the embodiment container.

FIG. 4 is an enlarged sectional view showing a main part of the container of the embodiment.

FIG. 5 is a plan view showing a liquid container of the embodiment container.

FIG. 6 is a plan view showing a push rod of the embodiment container.

FIG. 7 is a sectional view showing a push rod of the container of the embodiment.

FIG. 8 is a bottom view showing a push rod of the embodiment container.

FIG. 9 is an enlarged sectional view showing a lid of the container of the embodiment.

FIG. 10 is a plan view showing a lid of the example container.

FIG. 11 is an enlarged sectional view showing a protective cap of the embodiment container.

FIG. 12 is a plan view showing a protective cap of the embodiment container.

[Explanation of symbols]

 2 Container main body 3 Reaction chamber 7 Liquid container (reaction inducer container) 7a Vent hole (inside vent hole) 7b Annular wall (vertical wall) 7c Side wall (vertical wall) 8 Outer convex wall (upper wall) 8d Recess 10 Sheet 11 Push rod 12 Lid 12a Curved portion (first moving portion) 12b Thin portion 15 Protective cap 15b Slit (outer vent) 15c Projection 15d Central flat plate portion (second moving portion) A Contents B Heat generating substance C Reaction inducer

Continuation of the front page (56) References JP-A 3-68840 (JP, U) JP-A 63-186335 (JP, U) JP-A 2-87785 (JP, U) JP-A 2-126528 (JP , U) Japanese Utility Model 63-131985 (JP, U) Japanese Utility Model 2-73183 (JP, U) Japanese Utility Model 2-48029 (JP, U) Japanese Utility Model 2-86437 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A container main body filled with contents, and an open end fixed to one end of the container main body which is housed inside the container main body by closing one end of the container main body. A bottomed tubular reaction chamber containing a solid exothermic substance therein, and a reaction chamber provided at the opening end side of the reaction chamber and having a gap between an outer periphery and an inner periphery of the reaction chamber. An annular vertical wall disposed in the middle of the vertical wall, and a sheet closing the bottom of the vertical wall. An inducing agent container having an upper wall forming a chamber for accommodating a reaction inducing agent, a push rod extending from the inside of the upper wall to approach a sheet, and a space between the upper wall. To close the open end of the reaction chamber, and when it receives a pressing force via the protective cap described later, An arc-shaped thin portion between the first moving portion and a portion facing the inner peripheral edge of the opening end of the reaction chamber. A protective cap having a second moving part provided outside the lid and at least a part facing the first moving part is formed so as to be movable in the axial direction. Formed in the vertical wall, a space between the periphery of the reaction chamber and the outer periphery of the vertical wall, an inner air hole communicating with a space between the upper wall and the lid, and an inner vent formed in the protective cap, An outer ventilation hole that communicates with the projection; a projection formed on the second moving portion of the protective cap so as to protrude toward the lid; and disposed at a position overlapping the push rod in the axial direction. A linear thin portion formed on the first moving portion of the lid; and a linear thin portion formed on the upper wall facing the thin portion. A container with a heating function, comprising: