JP3699453B2 - Method for manufacturing insulated container with handle and insulated container with handle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a heat insulating container with a handle and a heat insulating container with a handle.
[0002]
[Prior art and problems to be solved by the invention]
For example, as a mug as a typical example of a heat insulating container with a handle, a structure in which a synthetic resin handle 24 is attached to a metal container body 23 having a vacuum double structure as shown in FIG. The container body 23 is formed by joining the content body 21 and the outer container body 22 with the upper opening edges 21a and 22a therebetween at a predetermined interval, and a brazing material around a through hole 22b formed in the bottom surface of the outer container body 22. The sealing member 25 is disposed, and the space S between the content body 21 and the external body 22 is evacuated in a vacuum heating furnace, and the through hole 22b is sealed with the sealing member 25. The bottom portion of the container body 23 is attached with a synthetic resin bottom body 26 integrally formed with a synthetic resin handle 24 by an adhesive.
[0003]
By the way, while the further proposal about this insulated container with a handle is desired, there is a demand for the handle to be made of metal like the container body. The requirement is that the handle is also made of metal, so that it can be made into a unique design that makes it possible to feel a sense of unity with the container body, which is not possible with the synthetic resin handle described above, and it also has excellent strength. This is because further improvement of the product value can be expected.
[0004]
Therefore, a heat insulating container with a handle in which the handle is made of metal has been proposed in the past, and a container body as shown in FIG. 2 is manufactured as a manufacturing method of this metal heat insulating container with a handle (hereinafter referred to as a conventional method). A concave portion 35 is formed in advance at a predetermined position on the peripheral surface of the outer body 32 constituting the portion 33 by pressing, and the end portion of the handle 34 is fitted into the concave portion 35, and between the fitted handle 34 and the concave portion 35 is fitted. In the meantime, the silver braze 36 is melted and poured to join the outer body 32 and the handle 34 together. Reference numeral 31 denotes a content body.
[0005]
However, this conventional method has a high manufacturing cost because the silver solder 36 is very expensive, and the joining work using the silver solder 36 requires skill. (Silver brazing 36 hangs or scatters.) Therefore, this finishing process must be performed with the handle 34 attached to the container body 33, which is very troublesome and inefficient in production.
[0006]
Further, according to the conventional method, when the recess 35 for fitting the end of the handle 34 is formed, the bottom corner portion 35a of the recess 35 is likely to be cracked (through processing for making the metal plate into a container shape). If the concave portion 35 is formed, a crack is liable to occur, and this crack is fatal to the vacuum structure. Therefore, since the amount of insertion of the end of the handle 34 into the recess 35 is reduced, there is a problem that sufficient bonding strength between the container body 33 and the handle 34 cannot be obtained.
[0007]
The present invention pays attention to the above-mentioned problems, and provides an innovative method for manufacturing a heat-insulated container with a handle and a heat-insulated container with a handle that exhibits an unprecedented effect.
[0008]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0009]
A method of manufacturing a heat-insulated container with a handle, which has a handle 4 and includes a content body 1 and an outer container body 2 connected to each other at a predetermined interval, in a handle mounting hole 5 provided at a predetermined position of the outer container body 2. when continuously provided the ends of the hand 4 preparative, the joint end and the outer container body 2 of said mounting hand 4, and a vacuum processing space S formed by the predetermined distance between the inner container body 1 and the outer container body 2 at the same time It is based on the manufacturing method of the insulated container with a handle characterized by performing.
[0010]
In the method of manufacturing the handle with insulated container according to claim 1 Symbol placement, the contents body 1, the outer container body 2 and the handle 4 is made of metal, the bonding between the end portion and the handle mounting hole 5 of the handle 4, The present invention relates to a method for manufacturing a heat-insulated container with a handle, characterized in that a brazing material 6 is disposed at a joint 7 between the two and the vacuum treatment is performed simultaneously with vacuum processing.
[0011]
In the method of manufacturing the handle with insulated container according to claim 1, 2 have Zureka 1 wherein, as the handle 4, employs a handle 4 having an internal space T, and the internal space T and the contents body 1 The space S formed at a predetermined interval with the outer container 2 is in communication with the end of the handle 4 and the outer container 2, and the internal space T and the vacuum processing of the space S are simultaneously performed. The present invention relates to a method for manufacturing a heat-insulated container with a handle.
[0012]
Further, the container body 3 is formed by connecting a metal content body 1 and a metal outer body body 2 at a predetermined interval, and a metal handle 4 attached to the container body 3. A space S formed by a predetermined interval between the content body 1 and the external body 2 is a vacuum space, and the handle 4 is composed of a member having an internal space T, and the internal space T is also a vacuum space. The present invention relates to a heat insulating container with a handle.
[0013]
Moreover, said the at handle with insulated container according to claim 4 Symbol mounting, the inner space T of the handle 4 is being made to communicate with the space S formed by the predetermined distance between the inner container body 1 and the outer container body 2 This relates to a heat insulating container with a handle.
[0014]
Moreover, the insulated container with a handle according to any one of claims 4 and 5, wherein the container body 3 and the handle 4 are made of stainless steel and are related to the insulated container with a handle .
[0015]
[Action and effect of the invention]
The present invention, when continuously provided the ends of the hand 4 taken on the handle mounting hole 5 provided at a predetermined position of the outer container body 2, the joint end and the outer container body 2 of said mounting hands 4, wherein the content body 1 and the outer The vacuum processing of the space S formed at a predetermined distance from the container 2 is performed simultaneously.
[0016]
Therefore, the process of joining the handle 4 and the outer container 2 and the process of evacuating the space S formed by the predetermined interval between the contents 1 and the outer container 2 are performed at the same time. Because it is good, the cost is low and the mass productivity is excellent.
[0017]
As described above, the present invention exhibits an epoch-making action and effect that has not been achieved so far, and has extremely high commercial value.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
The drawings illustrate one embodiment of the present invention and are described below.
[0019]
The present embodiment is a method for manufacturing a heat insulating container with a handle, which is composed of a container main body 3 in which a content body 1 and an outer container 2 are connected at a predetermined interval, and a handle 4 attached to the container main body 3. is there.
[0020]
The content body 1 and the external body 2 are each formed of a metal member (stainless steel) as shown in FIG. 3, and the content body 1 is arranged in the external body 2 with a predetermined interval therebetween. The upper opening edge 1a of the content body 1 and the upper opening edge 2a of the outer container 2 are welded.
[0021]
In addition, the outer container 2 is provided with handle attachment holes 5 for fitting and disposing the end portions of the handle 4 at two upper and lower positions at predetermined positions on the peripheral surface thereof.
[0022]
The handle attachment hole 5 is formed after the metal plate is formed into a container shape. Moreover, the cylindrical part 8 which protrudes toward the inner side of the outer container 2 with the formation of the handle attachment hole 5 is also formed. When the end portion of the handle 4 is fitted into the handle mounting hole 5, the end portion and the cylindrical portion 8 are in a superposed state.
[0023]
The length L1 of the cylindrical portion 8 is set so that sufficient attachment strength of the handle 4 to the container body 3 can be obtained (see FIG. 4). The cylindrical portion 8 may protrude outward from the outer container 2, and in that case, the end of the handle 4 may be fitted into the cylindrical portion 8.
[0024]
Note that the handle attachment hole 5 can be appropriately designed, for example, when the L-shaped handle 4 connected to the container body 3 at one place is connected.
[0025]
The handle 4 is formed of a metal member (stainless steel) as shown in FIG. 3, and has a tubular structure with a circular cross section.
[0026]
Therefore, when the handle 4 is attached to the container main body 3, the internal space T of the handle 4 is communicated with the space S formed by the predetermined interval between the content body 2 and the external body 3.
[0027]
The handle 4 is not limited to the hollow structure, but may have a muc structure, but the hollow structure is advantageous in consideration of the heat conduction relationship with the container body 3 (characteristics of the heat insulating container) and the weight reduction of the entire container.
[0028]
A method for joining the container body 3 and the handle 4 having the above-described configuration will be described in detail (note that the container body 3 and the handle 4 according to the present embodiment are each subjected to a finishing process before the vacuum process. Yes.)
[0029]
First, the container body 3 is turned sideways so that the handle mounting hole 5 faces upward, and the end of the handle 4 is fitted and disposed in each handle mounting hole 5 of the container body 3. A brazing material 6 is disposed (see FIGS. 5 and 6).
[0030]
Subsequently, the space S formed at a predetermined interval between the content body 1 and the external body 2 and the internal space of the handle 4 are disposed in a vacuum processing furnace in this state at about 800 ° C. for about 3 hours. T is degassed.
[0031]
Subsequently, after the deaeration is completed, when the temperature is further raised to about 1000 ° C., the brazing material 6 is melted and the gap between the inner peripheral surface of the handle mounting hole 5 (tubular portion 8) and the outer peripheral surface of the handle 4 Then, the handle attachment hole 5 is sealed by the end of the handle 4 by lowering the temperature to solidify the brazing filler metal 6, and formed at a predetermined interval between the content body 1 and the outer container body 2. Space S and the internal space T of the handle 4 become a vacuum space, and the joining of the container body 3 and the handle 4 is completed.
[0032]
In addition, the temperature setting and time setting in the vacuum processing using the brazing material 6 are not limited to the case of the above-described embodiment.
[0033]
Since the present embodiment is configured as described above, the handle 4 is also made of metal, so that the design and strength are excellent, and the process of joining the handle 4 and the outer container 2 together with the contents Since the process of evacuating the space S formed by a predetermined interval between 1 and the outer container 2 is performed at the same time, the manufacturing efficiency is very good, so the cost is low and the mass productivity is excellent.
[0034]
In addition, the present embodiment is a configuration in which the handle mounting hole 5 serving as the mounting portion of the handle 4 merely forms the cylindrical portion 8, and therefore, unlike the case where the concave portion 35 is formed as in the conventional example described above, Even if it is formed deeply, cracks that can be said to be fatal do not occur in this type of article. Therefore, a deep insertion amount L1 of the end of the handle 4 with respect to the handle mounting hole 5 can be obtained, and this insertion amount L1. The connection strength between the container body 3 and the handle 4 to be joined together is very strong.
[0035]
In addition, in this embodiment, it is only necessary to join the container body 3 and the handle 4 which have been subjected to the finishing process in advance. That is, unlike the above-described conventional silver solder joining, the container body 3 is preliminarily processed before the vacuum treatment. If the main body 3 and the handle 4 are each subjected to a finishing process, it is not necessary to perform the finishing process after joining the two, and a dramatic improvement in manufacturing efficiency can be achieved in this respect as well.
[0036]
Further, in this embodiment, the handle 4 is constituted by a pipe member having an internal space T. The internal space T of the handle 4 is communicated with the space S of the container body 3, and the internal space T and the space S are connected. Is set in a vacuum space, for example, when a hot beverage is packed in the container body 3, for example, heat can be radiated from the handle 4 as much as possible when the handle 4 is used. A good heat insulation state is obtained by being suppressed, and the handle 4 is prevented from being heated as much as possible, resulting in a good heat insulating structure, and the entire container can be made lightweight.
[0037]
Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.
[Brief description of the drawings]
FIG. 1 is an explanatory cross-sectional view of a conventionally proposed insulated container with a handle.
FIG. 2 is a partially enlarged explanatory view for explaining a conventional method.
FIG. 3 is an explanatory sectional view of a heat insulating container with a handle according to the present embodiment.
FIG. 4 is a partially enlarged explanatory view of a heat insulating container with a handle according to the present embodiment.
FIG. 5 is an explanatory diagram of a method for manufacturing a heat insulating container with a handle according to the present embodiment.
FIG. 6 is an explanatory diagram of a method for manufacturing a heat insulating container with a handle according to the present embodiment.
[Explanation of symbols]
S space T internal space 1 content body 2 external body 4 handle 5 handle mounting hole 6 brazing material 7 joint

Claims (6)

Has a handle, the content body and an outer container body A method of manufacturing a handle with insulated container formed by consecutively provided through a predetermined distance, the end portion of the hand taken to handle mounting hole provided at a predetermined position of the outer container body When connecting the end of the handle and the outer container, and the vacuum treatment of the space formed by a predetermined interval between the content body and the outer container is performed at the same time. Production method. The method of manufacturing a handle with insulated container according to claim 1 Symbol placement, the contents body, the outer container body and the handle is made of metal, the bonding between the end portion and the handle mounting hole of the handle, the brazing material at the junction of the two A method for manufacturing a heat-insulated container with a handle, which is performed simultaneously with vacuum processing in a vacuum heating furnace. The method of manufacturing a handle with insulated container according to claim 1, 2 have Zureka 1 wherein, as said handle employs a handle having an internal space, a predetermined distance between the inner container body and an outer container body and the internal space A method for manufacturing a heat-insulated container with a handle, which is in communication with a space to be formed, and performs jointing of an end of the handle and an outer container and vacuum treatment of the internal space and the space.   A container main body formed by connecting a metal content body and a metal outer container at a predetermined interval, and a metal handle attached to the container main body. A space formed by a predetermined interval is a vacuum space, and the handle is constituted by a member having an internal space, and the internal space is also a vacuum space. In the handle with insulated container according to claim 4 Symbol mounting, the internal space is the handle with insulated container, characterized in that it is made to space and communicating formed by a predetermined gap between the inner container body and an outer container body of the handle. The insulated container with a handle according to any one of claims 4 and 5, wherein the container body and the handle are made of stainless steel .

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