JPS5838715B2 - How to manufacture refrigerator cabinets - Google Patents
How to manufacture refrigerator cabinetsInfo
- Publication number
- JPS5838715B2 JPS5838715B2 JP2246977A JP2246977A JPS5838715B2 JP S5838715 B2 JPS5838715 B2 JP S5838715B2 JP 2246977 A JP2246977 A JP 2246977A JP 2246977 A JP2246977 A JP 2246977A JP S5838715 B2 JPS5838715 B2 JP S5838715B2
- Authority
- JP
- Japan
- Prior art keywords
- inner box
- partition wall
- heat insulating
- mold
- partition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Refrigerator Housings (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、プラスチックシートによる内箱の真空成形時
に、この内箱内を上下に複数の貯蔵室に仕切る仕切壁を
一体を形成するようにした冷蔵庫のキャビネットの製造
方法に関するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is characterized in that, when an inner box is vacuum-formed from a plastic sheet, a partition wall that partitions the interior of the inner box into a plurality of upper and lower storage chambers is integrally formed. The present invention relates to a method for manufacturing a refrigerator cabinet.
従来この種の冷蔵庫のキャビネットは第１図に示すよう
に、冷蔵庫本体２内を仕切壁１により上下に冷凍室３と
冷蔵室４とを区分し、これら両貯蔵室の内壁を形成する
内箱５をプラスチックシートにより周知の真空成形法に
よシ一体に形成し、第２図に示す内箱５が成形される。As shown in FIG. 1, conventional refrigerator cabinets of this type have a refrigerator main body 2 divided into a freezer compartment 3 and a refrigerator compartment 4 vertically by a partition wall 1, and an inner box that forms the inner walls of both storage compartments. 5 is integrally formed from a plastic sheet by a well-known vacuum forming method, and the inner box 5 shown in FIG. 2 is molded.
次に内箱５の仕切部内にあらかじめ発泡スチロール等の
固形断熱材よりなる断熱部材９を押入しておき、その後
にとの内箱を外箱１０に組込み両箱間に形成される空間
にポリウレタンフォーム等の発泡性断熱材を充填してい
た。Next, a heat insulating member 9 made of a solid heat insulating material such as styrofoam is inserted into the partition of the inner box 5 in advance, and then the inner box is assembled into the outer box 10 and polyurethane foam is filled in the space formed between the two boxes. It was filled with foam insulation material such as
以上のように構成した従来のものにおいては、内箱５の
成形後に内箱の仕切部６に断熱部材９を押入しているた
め、相互の形成が一致せず遊離した状態となり、冷凍室
３の底面が不安定になるとともに強度的にも弱いという
欠点があった。In the conventional device configured as described above, since the heat insulating member 9 is pushed into the partition portion 6 of the inner box after the inner box 5 is formed, the formations do not match each other and become separated, resulting in The disadvantage was that the bottom surface of the structure was unstable and its strength was weak.
筐た、第１図は例えば実開昭５１−２８８５３号公報に
示されたように従来の冷蔵庫の冷凍室部分の縦断面で、
仕切壁１の奥部に冷却器８の下部を収納する凹部７を形
成している。Figure 1 is a vertical cross-section of the freezer compartment of a conventional refrigerator, as shown in, for example, Japanese Utility Model Application Publication No. 51-28853.
A recess 7 is formed in the inner part of the partition wall 1 to accommodate the lower part of the cooler 8.
このような第５図に示すように内箱５を形成する際、真
空成形用金型に上記凹部７に対応して凹部を形成しても
アンダカットとなり、真空成形後、上記金型が抜けない
という問題があるため、第３図に示す成形用金型１１を
用いて真空成形し、内箱の仕切部６の形状は第２図に示
すように成形される。When forming the inner box 5 as shown in FIG. 5, even if a recess is formed in the vacuum molding mold to correspond to the recess 7, an undercut will result, and the mold will come out after vacuum forming. Because of this problem, vacuum forming is performed using a molding die 11 shown in FIG. 3, and the shape of the partition portion 6 of the inner box is formed as shown in FIG. 2.
このため内箱の仕切部６の凹部７に立置する部分には第
４図に示すような穴１２を後工程で開口させている。For this purpose, a hole 12 as shown in FIG. 4 is opened in a later step in the part of the partition part 6 of the inner box where the recess 7 is to be placed upright.
つぎに発泡スチロール等の固形断熱材よりなる凹部７を
形成した断熱部材９を押入しておき、その後に内箱５と
外箱１００間に現場発泡のポリウレタンフォームを充填
している。Next, a heat insulating member 9 formed with a recess 7 made of a solid heat insulating material such as styrofoam is pushed in, and then a polyurethane foam foamed in place is filled between the inner box 5 and the outer box 100.
以上のように構成した従来のものにかいては、内箱の仕
切部６に穴１２を穿設する必要があり、工数が増えてコ
スト高になり、また、ポリウレタンフォームの現場発泡
の発泡工程において、内箱５と断熱部材９との隙間を通
して、発泡材の一部が上記内箱の穴１２よシ漏洩する虞
れがあった。In the conventional device configured as described above, it is necessary to drill holes 12 in the partition part 6 of the inner box, which increases the number of man-hours and costs, and also requires a foaming process for on-site foaming of polyurethane foam. In this case, there was a risk that a portion of the foam material might leak out through the hole 12 in the inner box through the gap between the inner box 5 and the heat insulating member 9.
さらに断熱部材９の凹部７は直接冷凍室３内の冷気およ
び水分に接触するため、吸湿による断熱材の劣化を１ね
く虞れがあった。Furthermore, since the concave portion 7 of the heat insulating member 9 directly contacts the cold air and moisture in the freezer compartment 3, there is a risk that the heat insulating material may deteriorate due to moisture absorption.
本発明は上記のような従来のものの欠点を除去するため
になされたものであシ、内箱の仕切壁内へ収納する断熱
部材を、あらかじめ仕切壁の成形形として内箱の真空成
形用金型にセットしてかきプラスチックシートにより内
箱を一体に成形するようにしたものである。The present invention has been made in order to eliminate the drawbacks of the conventional products as described above.The present invention has been made in order to eliminate the drawbacks of the conventional products as described above. The inner box is set in a mold and integrally molded from a rolled plastic sheet.
以下、第６図ないし第９図に示す実施例により本発明の
詳細な説明すると、１は冷蔵庫本体２内を上下に冷凍室
３と冷蔵室４に区分する仕切壁、５は真空成形法により
一枚のプラスチックシートで、上記両室３．４の内壁を
一体に形成した内箱で、との内箱の略中央部には上記仕
切壁１の外被を形成する仕切部６を有している。Hereinafter, the present invention will be described in detail with reference to the embodiments shown in FIGS. 6 to 9. 1 is a partition wall that vertically divides the inside of the refrigerator body 2 into a freezing compartment 3 and a refrigerator compartment 4; 5 is a partition wall formed by vacuum forming. It is an inner box in which the inner walls of both chambers 3 and 4 are integrally formed with a single plastic sheet, and the inner box has a partition part 6 that forms the outer cover of the partition wall 1 at approximately the center of the inner box. ing.
７は上記冷凍室３の奥部に位置し、上記仕切壁１に設け
た冷却器８の下部を収容し、かつ除霜水を受ける凹部、
９は上記仕切壁１の内部に充填された内箱５の真空成形
時に成形型を兼用する断熱材で、仕切部の凹部７に対応
する位置に凹部成形部１２を設けている。7 is a recess located at the back of the freezer compartment 3, housing the lower part of the cooler 8 provided in the partition wall 1, and receiving defrosting water;
Reference numeral 9 denotes a heat insulating material that also serves as a mold during vacuum forming of the inner box 5 filled inside the partition wall 1, and has a recess molded portion 12 at a position corresponding to the recess 7 of the partition.
なお１０は冷蔵庫本体２の外壁を形成する鋼板等の外箱
で、この外箱の内部に内箱５を収容し、との内箱との間
隙内に現場発泡によるポリウレタンフォーム等の発泡性
断熱材を充填している。Reference numeral 10 denotes an outer box made of steel plate or the like that forms the outer wall of the refrigerator main body 2. The inner box 5 is housed inside this outer box, and a foam insulation material such as polyurethane foam formed on-site is placed in the gap between the outer box and the inner box. Filled with material.
以上のように構成したものにおいて、次に第７図および
第９図によシ上記仕切壁の製造工程について述べる。In the structure as described above, the manufacturing process of the partition wall will now be described with reference to FIGS. 7 and 9.
すなわち真空成形法によシ仕切壁を成形する場合には、
まず第７図に示すように、仕切壁１と同一形状に成形さ
れた成形型を兼用する断熱部材９を真空成形用金型１１
の所定位置にセットしたあと、一枚のプラスチックシー
トにより内箱５を所定の形状に真空成形加工することに
より第９図に示すような内箱、すなわち仕切壁１の内部
にのみ成形型を兼ねた断熱部材９が密着、充填された内
箱５が得られる。In other words, when forming the partition wall using the vacuum forming method,
First, as shown in FIG.
After setting the inner box 5 in a predetermined position, the inner box 5 is vacuum-formed into a predetermined shape using a single plastic sheet, so that the inner box as shown in FIG. The inner box 5 is obtained which is tightly packed with the heat insulating member 9.
次に内箱５を真空成形用金型１１より断熱部材９ととも
に取り外し、この内箱５を外箱１０内に収容し、外箱１
０と内箱５との間隙に現場発泡によるポリウレタンフォ
ーム等の発泡性断熱材を充填する。Next, the inner box 5 is removed from the vacuum forming mold 11 together with the heat insulating member 9, and the inner box 5 is housed in the outer box 10.
The gap between the inner box 5 and the inner box 5 is filled with a foamable heat insulating material such as polyurethane foam formed on-site.
従って断熱部材９にあらかじめ設けておいた凹部成形部
７の形状どおりに凹部７は成形される。Therefore, the recess 7 is molded according to the shape of the recess molded portion 7 previously provided in the heat insulating member 9.
なか、上記実施例では、仕切壁１に凹部７を形成する構
造について説明したが、本発明ではその形成が凹部に限
定されるものではなく、成形の際アンダーカット部を形
成するその他の形状にも適用されることもちろんである
。In the above embodiment, the structure in which the recess 7 is formed in the partition wall 1 has been described, but in the present invention, the formation thereof is not limited to the recess, but may be formed in other shapes that form an undercut during molding. Of course, this also applies.
本発明は以上述べたように、仕切壁の成形型を兼用した
断熱部材を真空成形用金型の所定位置にセットしてから
プラスチックシートにより内箱を所定の形状に真空成形
により成形するようにしたから仕切壁内の断熱部材は強
固に密着し、強度的にすぐれた仕切壁を有する内箱を提
供することができる。As described above, the present invention includes a method in which a heat insulating member which also serves as a mold for a partition wall is set in a predetermined position in a vacuum mold, and then an inner box is vacuum formed into a predetermined shape using a plastic sheet. Therefore, the heat insulating member within the partition wall is tightly adhered, and an inner box having a partition wall with excellent strength can be provided.
また、仕切壁に例えば冷却器の一部を収納する凹部を形
成する場合は、あらかじめ仕切壁の成形型を兼ねた断熱
部材に凹部形成部を設けておけばよく、従来のように凹
部を形成するための内箱への穴あけ作業は不要となシ、
その結果、断熱部材に冷凍室の冷気、または水が触れる
こともなく、断熱材の劣化を防止できるなど、工数は省
力化し安価で、かつ上記のような不具合点を解消した冷
蔵庫のキャビネットを提供するものである。In addition, when forming a recess in a partition wall to accommodate a part of a cooler, for example, it is sufficient to provide the recess forming part in advance in the heat insulating member that also serves as a mold for the partition wall, and instead of forming the recess as in the conventional method. There is no need to drill holes in the inner box for
As a result, the insulation material does not come into contact with the cold air or water from the freezer compartment, preventing deterioration of the insulation material, thereby providing a refrigerator cabinet that saves man-hours, is inexpensive, and eliminates the above-mentioned problems. It is something to do.
第１は従来の冷蔵庫キャビネットの要部断面図、第２図
は従来の仕切部を示す内箱の縦断面図、第３図は第２図
の内箱を成形す真空成形用金型の縦断面図、第４図は第
２図に相当する内箱に断熱部材を押入する説明図、第５
図は理想の第２図に相当する内箱ととの内箱を成形する
真空成形用金型を対比した説明用断面図、第６図は本発
明の一実施例を示す冷蔵庫キャビネットの縦断面図、第
７図は第５図の内箱を成形する真空成形用金型の縦断面
図、第８図は第７図の成形用金型の所定位置に断熱部材
をセットした状態を示す説明用断面図第９図は第８図の
セットされた成形型で真空成形により成形された内箱の
要部断面図、第１０図は第９図の真空成形された内箱を
金型より離型した状態を示す説明図である。
な耘、図中同一符号は同一、筐たは相当部分を示し、１
は仕切壁、２は冷蔵庫本体、３は冷凍室、４は冷蔵室、
５は内箱、６は仕切部、７は凹部、９は断熱部材、１１
は真空成形用金型、
部成形部である。
１２は凹The first is a sectional view of the main parts of a conventional refrigerator cabinet, the second is a longitudinal sectional view of the inner box showing the conventional partitions, and the third is a longitudinal sectional view of the vacuum forming mold used to form the inner box of Fig. 2. The top view, Figure 4 is an explanatory diagram of pushing the heat insulating member into the inner box corresponding to Figure 2, and Figure 5 is
The figure is an explanatory cross-sectional view comparing the ideal inner box shown in Fig. 2 and the vacuum forming mold for forming the inner box, and Fig. 6 is a longitudinal cross-section of a refrigerator cabinet showing an embodiment of the present invention. 7 is a vertical cross-sectional view of the vacuum forming mold for forming the inner box shown in FIG. 5, and FIG. 8 is an explanation showing the state in which the heat insulating member is set in the predetermined position of the molding mold shown in FIG. 7. Figure 9 is a cross-sectional view of the main part of the inner box formed by vacuum forming with the mold set in Figure 8, and Figure 10 is a cross-sectional view of the vacuum-formed inner box shown in Figure 9 separated from the mold. It is an explanatory view showing a molded state. The same reference numerals in the figures indicate the same casing or corresponding parts.
is the partition wall, 2 is the refrigerator body, 3 is the freezer compartment, 4 is the refrigerator compartment,
5 is an inner box, 6 is a partition, 7 is a recess, 9 is a heat insulating member, 11
is the mold for vacuum forming, and is the molding section. 12 is concave
Claims (1)
の内箱内に上下に複数の貯蔵室に仕切る仕切壁を一体に
成形させるようにしたものにおいて、上記仕切壁内へ収
納する断熱部材を真空成形用金型の所定位置へ仕切壁の
成形型としてセットさせてから、プラスチックシートに
より内箱を所定の形状に真空成形させるようにし、上記
断熱部材を仕切部で一体に被覆させた仕切壁を有する内
箱を備えたことを特徴とする冷蔵庫のキャビネットの製
造方法。 ２ 断熱部材にあらかじめアンダーカット部を形成し、
このアンダーカット形成部に対応する内箱の仕切部に凹
部もしくは凸部を一体に形成させたことを特徴とする特
許請求の範囲第１項記載の冷蔵庫のキャビネットの製造
方法。[Scope of Claims] 1. A partition wall that partitions a plurality of storage chambers vertically into the inner box is integrally molded during vacuum forming of the inner box using a plastic sheet, and the container is stored in the partition wall. The heat insulating member is set in a predetermined position of a vacuum forming mold as a mold for a partition wall, and then the inner box is vacuum formed into a predetermined shape using a plastic sheet, and the above heat insulating member is integrally covered with the partition part. 1. A method for manufacturing a refrigerator cabinet, comprising an inner box having a partition wall. 2 Form an undercut part in advance on the insulation member,
2. The method of manufacturing a refrigerator cabinet according to claim 1, wherein a concave portion or a convex portion is integrally formed in the partition portion of the inner box corresponding to the undercut forming portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2246977A JPS5838715B2 (en) | 1977-03-02 | 1977-03-02 | How to manufacture refrigerator cabinets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2246977A JPS5838715B2 (en) | 1977-03-02 | 1977-03-02 | How to manufacture refrigerator cabinets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53107770A JPS53107770A (en) | 1978-09-20 |
| JPS5838715B2 true JPS5838715B2 (en) | 1983-08-24 |
Family
ID=12083555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2246977A Expired JPS5838715B2 (en) | 1977-03-02 | 1977-03-02 | How to manufacture refrigerator cabinets |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5838715B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016014488A (en) * | 2014-07-01 | 2016-01-28 | パナソニックＩｐマネジメント株式会社 | refrigerator |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586386A (en) * | 1981-07-01 | 1983-01-13 | 澤藤電機株式会社 | Manufacture of heat insulating box body for refrigerator |
| JPS58136967A (en) * | 1982-02-05 | 1983-08-15 | 三菱電機株式会社 | Heat-insulating door of refrigerator, etc. |
| JPS58195775A (en) * | 1982-05-11 | 1983-11-15 | 三菱電機株式会社 | Heat-insulating door for refrigerator, etc. |
| JPS6062580A (en) * | 1984-07-27 | 1985-04-10 | 株式会社日立製作所 | Refrigerator |
-
1977
- 1977-03-02 JP JP2246977A patent/JPS5838715B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016014488A (en) * | 2014-07-01 | 2016-01-28 | パナソニックＩｐマネジメント株式会社 | refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53107770A (en) | 1978-09-20 |
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