JPH0752660Y2 - Insulated cooking container - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention is suitable for use in a cooking method in which semi-cooked food is kept warm by heating to make a cooked product. In particular, the lid member can be freely opened and closed and opened and closed. The present invention relates to a heat-insulating cooking container in which a lid member does not drop from an outer container.

[0002]

2. Description of the Related Art Generally, cooking and processing of food is performed by using electric heat or open flame. However, in such a cooking method, there is a problem that boiling over due to overheating or burning is likely to occur, and a large amount of energy is consumed.

Recently, a cooking method capable of eliminating this inconvenience has been proposed.
In a suitable amount of boiling water or seasoned boiling broth, the desired raw vegetables,
A cooking method is recommended in which a grain is dipped and a semi-cooked heated food is kept warm for a long time to obtain a cooked finished product.

As a cooking utensil suitable for this type of cooking, the heat-insulating cooking container shown in FIGS. 6 to 9 has been conventionally provided.

This heat-insulating cooking container comprises an outer container 1 and an inner container 2.
And an insulating lid member 3 for closing the opening 1a of the outer container 1
It consists of and. The outer container 1 has a double structure composed of an outer bottle 4 and an inner bottle 5, and a heat insulating portion 6 filled with a vacuum or a heat insulating material is formed between the inner and outer bottles 4, 5.
A support 7 for stably placing the outer container 1 is attached to the outer bottom portion of the outer container 1 with screws 7a.

On the outer peripheral portion of the lid member 3, there is provided a convex portion 9 which is provided so as to project outward and is provided with rib walls 9a, 9a on both sides. A hinge shaft 10 arranged horizontally across the rib walls 9a, 9a is attached.

A shoulder member 11 is attached to the outer periphery of the opening 1a of the outer container 1. In this shoulder member 11,
The hinge receiving portion 11B is integrally molded and attached, and is dimensioned to be fitted between the rib walls 9a, 9a of the lid member 3,
The upper surface is a substantially horizontal surface 11a. At the outer end of the horizontal surface 11a, a vertically extending wall 12b is provided, and a tongue piece 12a whose upper end is curved inward is provided,
A lateral groove 12 into which the hinge shaft 10 of the lid member 3 is fitted is formed. A stopper 13 for preventing the hinge shaft 10 fitted in the lateral groove 12 from coming off is provided at the base of the horizontal surface 11a to form a hinge receiving portion 11B. Thus, the hinge receiving portion 11B and the hinge shaft 10 provided on the convex portion 9 of the lid member 3 are engaged with each other to form the hinge portion 14. The lid member 3 is opened and closed by hinge engagement during normal use. On the other hand, at the time of cleaning, the lid member can be removed to finely and easily perform cleaning.

Further, the convex portion 9 of the top plate portion 3a of the lid member 3
An opening / closing operation portion 15 of the lid member protruding upward is attached to the upper surface near the outer periphery facing the.

As is well known, the shoulder member 11 on the outer periphery of the outer container 1 is provided with a handle for lifting the outer container at a position different from the position of the hinge receiving portion 11B. Further, the inner container is provided with a handle capable of closing the lid member in a state where the inner container is accommodated in the outer container (both not shown). Further, reference numeral 16 in the drawing denotes a recess for accommodating the knob 17a of the lid 17 of the inner container 2.

In the heat insulating cooking container, food is put in the inner container 2 for heating, the opening / closing operation portion 15 is grasped and lifted upward, and the lid member 3 is rotated by using the hinge shaft 10 as a fulcrum to rotate the lid member 3. When the inner container 2 is placed in the outer container 1 and the lid member 3 is closed, the inner container 2 is maintained at a high temperature, and cooking is completed without boiling or overheating. Then, at the time of cleaning after use, the lid member 3 can be removed from the hinge receiving portion 11B and finely cleaned.

[0011]

However, in the above-mentioned conventional heat-insulating cooking container, the opening / closing operation portion 15 of the lid member 3 is shown in FIG.
When lifted upward (F direction) as shown in 0, the lid member 3
As the component opens, a component force in the F1 direction acts, and when the angle between the outer container 1 and the lid member 3 is θ, F1 becomes Fsin θ, F1 gradually increases, and when F1 exceeds the stopper 13, When the hinge shaft is used, the hinge receiving part 11
Although it is necessary to engage with B, it is disengaged and the inner container 2 cannot be put into the outer container 1 and the lid member 3 cannot be smoothly closed. Further, the opening / closing operation unit 15
Since another component is attached, the manufacturing cost is high, and when the heat-insulating cooking container is stored, the opening / closing operation unit 15 becomes an obstacle and an object cannot be placed on the upper surface.

The present invention has been made in view of the above circumstances, and retains the engagement of the lid member without being disengaged from the outer container even in a busy operation of putting the heated inner container into the outer container during use, and is manufactured. It is an object of the present invention to provide a heat-insulating cooking container which is low in cost and which allows an object to be placed on the top during storage.

[0013]

In order to solve the above-mentioned problems, the heat-insulating cooking container of the present invention comprises an outer container having a heat insulating property, and an inner container which is removably accommodated in the outer container.
A heat insulating lid member that is detachably connected to the outer container by a hinge portion, is rotated about the hinge portion, and opens and closes the opening of the outer container in a state where the inner container is housed in the outer container. In the heat-insulating cooking container having, the hinge portion is provided on the outer peripheral portion of the lid member so as to project outward, and extends along the outer side of the convex portion to the convex portion where a rib wall perpendicular to the lower surface is formed. A hinge shaft horizontally supported and attached to the rib walls on both sides and a shoulder member provided along the outer periphery of the opening of the outer container so as to project from the shoulder shaft are fitted in the vertical direction. depth and the hinge receiving portion having a diameter dimension or more hinges receiving groove of at least the hinge shaft is formed is engaged with Ri Na, anti against the convex section provided with hinge axis of the lid member
A lid part that protrudes in a direction away from the convex part on the outer periphery of the opposite side
An opening / closing operation section integrated with the material is provided, and the hinge receiving section is also provided.
From above, and the tip bends radially inward.
A tongue that covers the upper side of the receiving groove is provided, and the tongue is the lid.
When the member is in the closed state, move the hinge shaft moved upwards.
Moves upward when locked and the lid member is open.
The hinge shaft can be pulled out from the hinge receiving groove.
It is characterized in that it is formed in a normal state.

Further, the heat insulating lid member is provided with an opening / closing operation portion integral with the lid member protruding in a direction away from the convex portion on the outer peripheral portion on the opposite side to the convex portion on which the hinge shaft of the lid member is arranged. ing.

[0015]

Since the heat-insulating cooking container of the present invention has the above-mentioned structure, since the lid member is opened by putting a finger on the opening / closing operation portion during use, the force is applied in the arc direction centering on the hinge axis, Since it is fitted in the deep groove in the vertical direction, it does not come off easily. Further, since the opening / closing operation portion is provided on the outer periphery of the lid member so as to project outward, the top surface of the opening / closing operation portion has a planar shape so that an object can be placed.

[0016]

1 to 4 show an embodiment of an adiabatic cooking container according to the present invention. The same parts as those in FIGS. 6 to 9 are designated by the same reference numerals to simplify the description.

Reference numeral 22 in the drawing denotes an inner container housed in the outer container 21, and the opening 21a of the outer container 21 is closed by a heat insulating lid member 23.

On the outer peripheral portion of the one-diameter end of the lid member 23, a vertical plane including the one diameter is used as a central plane,
On both sides, convex portions 24 integrally formed with rib walls 24a parallel to the center plane are provided so as to project outward. A hinge shaft 25 is attached to the both side rib walls 24a and horizontally supported by supporting both ends thereof.

A shoulder member 26 is provided on the outer periphery of the opening 21a of the outer container 21, and the shoulder member 26 has a flat portion 26a having a width that allows fitting between the rib walls 24a and 24a. A hinge receiving groove 27 having a depth equal to or larger than the diameter of the hinge shaft 25 is provided at the tip portion.
Hinge receiving part 2 integrally formed with a tongue piece 28 covering the upper part of the
6B is integrally formed. If the depth of the hinge receiving groove 27 is smaller than the diameter of the hinge shaft 25, the hinge shaft 25 is likely to come off. The hinge shaft 25 attached to the rib wall 24 a of the convex portion 24 of the lid member 23 has the outer container 2
1 is fitted into a hinge receiving groove 27 provided in a shoulder member 26 arranged on the outer periphery of the opening of the first opening, and is engaged with the hinge receiving portion 26B to form a hinge portion 29. The lid member 23 is supported and rotated by the hinge receiving portion 26B, and the opening of the outer container 21 is opened and closed.

On the outer periphery of the lid member 23 opposite to the convex portion 24, an opening / closing operation portion 30 projecting in a direction away from the convex portion 24 is integrally formed with the lid member 23. The shoulder member 26, the convex portion 24, the lid member 23, and the opening / closing operation portion 30.
Are usually made of synthetic resin.

Handles are attached to the outer container and the inner container in the same manner as conventional ones (both not shown).

Since the heat-insulating cooking container of the present invention has the above-mentioned structure, the lid member 23 has a flat upper surface, and an object can be placed on it for easy storage. Further, since the opening / closing operation section 30 is formed integrally with the lid member, no labor is required for attachment, and the manufacturing cost is reduced. In addition, as shown in FIG.
When opening, the finger is applied to the lower surface of the opening / closing operation section 30 and lifted upward. However, since the lid member 23 rotates around the hinge section 29, the direction of applying force is natural to prevent the finger from coming off. In the circumferential direction around the hinge portion 29. Further, since the hinge shaft 25 is fitted in the hinge receiving groove 27 which is deeper than the diameter of the shaft 25, the inner container 22 is heated so as not to come off easily even though it is detachable.
Even when the lid member 23 is opened in a hurry such as when inserting the lid member 23, the hinge portion 29 does not come off and the lid member 23 and the outer container 21 are not separated.

In the above description, a horizontal cross section or a circular cross section is described, but the present invention is not limited to this, and both sides of the line connecting the convex portion of the lid member and the center of the opening / closing operation portion have the same weight. The shape may be a quadrangle or any other shape as long as it can be opened and closed by rotating around the hinge portion.

[0024]

As described above, in the heat-insulated cooking container according to the present invention, since the opening / closing operation portion projects integrally with the outer periphery of the lid member, it is troublesome to attach the opening / closing operation portion to the lid member. Since the upper surface is flat and an object can be placed on it, it does not take up much space for storage, and since the hinge shaft is fitted in the hinge receiving groove that is deeper than the diameter of the hinge shaft in the vertical direction, it can be detachably attached. Even though they are fitted together, there is an advantage that the lid member and the outer container are not separated when the lid member is opened.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of an insulating cooking container according to the present invention.

FIG. 2 is an enlarged view of a portion A of FIG.

FIG. 3 is a view taken along the line III-III in FIG.

FIG. 4 is a view taken along the line IV-IV of FIG.

5 is a view corresponding to FIG. 2 showing a state in which a lid member is opened.

FIG. 6 is a vertical cross-sectional view showing an example of a conventional heat-insulating cooking container.

FIG. 7 is an enlarged view of portion B in FIG.

8 is a view taken along the line VIII-VIII of FIG.

9 is a view taken along the line IX-IX in FIG.

10 is a view corresponding to FIG. 7 showing a state in which a lid member is opened.

[Explanation of symbols]

 21 outer container 21a opening 22 inner container 23 lid member 24 convex portion 24a rib wall 25 hinge shaft 26 shoulder member 26B hinge receiving portion 26a flat surface portion 27 hinge receiving groove 28 tongue piece 29 hinge portion 30 opening / closing operation portion

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Ikuo Miura Ikuo Miura 1-16-7 Nishi-Shimbashi, Minato-ku, Tokyo Inside Nihon Oxygen Co., Ltd. (56) References Showa 62-86130 (JP, U) Showa 58-154740 (JP, U) Actually opened 49-72561 (JP, U) Actually opened 49-106659 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. An outer container having a heat insulating property, an inner container that is removably housed in the outer container, and an outer container that is detachably connected to the outer container by a hinge portion and is rotated about the hinge portion. In an adiabatic cooking container having a heat-insulating lid member that opens and closes the opening of the outer container in a state where the inner container is housed in the outer container, the hinge portion projects outward toward the outer peripheral portion of the lid member. A hinge shaft that is provided and has a rib wall that is perpendicular to the lower surface, is horizontally supported and attached to the rib walls on both sides extending along the outside of the protrusion, and the opening of the outer container. A hinge receiving portion formed on a shoulder member provided along the outer circumference of the portion, into which the hinge shaft is fitted, and in which a hinge receiving groove having a depth in the vertical direction of at least the diameter dimension of the hinge shaft is formed; distribution but Ri Na engaged, the hinge axis of the lid member Outside opposite to the convex portion
Integral with the lid member that protrudes in the direction away from the above convex portion
Is provided with an opening / closing operation part and extends upward from the hinge receiving part , and the tip part is radially inward.
A tongue that is bent over to cover the above hinge receiving groove.
When the lid member is in the closed state, the tongue piece moves upward.
The moved hinge shaft is locked and the lid member is open.
When the hinge shaft is moved upward,
An adiabatic cooking container characterized in that it is formed so as to be able to slip out of the groove .