JP2000180039A - Heat insulating box - Google Patents

Heat insulating box

Info

Publication number
JP2000180039A
JP2000180039A JP10355001A JP35500198A JP2000180039A JP 2000180039 A JP2000180039 A JP 2000180039A JP 10355001 A JP10355001 A JP 10355001A JP 35500198 A JP35500198 A JP 35500198A JP 2000180039 A JP2000180039 A JP 2000180039A
Authority
JP
Japan
Prior art keywords
corner
sheet
corner plate
heat insulating
heat
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.)
Granted
Application number
JP10355001A
Other languages
Japanese (ja)
Other versions
JP3398334B2 (en
Inventor
Masayuki Yamamoto
雅幸 山本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoshizaki Electric Co Ltd
Original Assignee
Hoshizaki Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hoshizaki Electric Co Ltd filed Critical Hoshizaki Electric Co Ltd
Priority to JP35500198A priority Critical patent/JP3398334B2/en
Publication of JP2000180039A publication Critical patent/JP2000180039A/en
Application granted granted Critical
Publication of JP3398334B2 publication Critical patent/JP3398334B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/08—Parts formed wholly or mainly of plastics materials
    • F25D23/082—Strips
    • F25D23/085—Breaking strips

Landscapes

  • Refrigerator Housings (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent the leakage of foaming heat-insulating material more certainly. SOLUTION: At the gate 7 of a heat insulating box, decorative frames 6 are mounted on its four sides, while L-shaped corner boards 14 are attached to its corners. A sheet 18 consisting of rubber material nonpermeable and abundant in elasticity is stuck to the rear of the corner board 14, and is fixed by rivets 29. An L-shaped corner cover 21 is attached, spreading over the edge of the decorative frame 6 from the corner board 14. The corner cover 21 is fixed by the lock piece 24 projected at the rear being inserted into the lock hole 17 of the corner board 14 while drawing the sheet 18 and the lock tooth 27 being caught at the brim of the lock hole 17. After that, the box is filled with foaming heat-insulating material between an outer box and an inner box, and at that time, the occurrence of the leakage of the foaming heat-insulating material is prevented because the sections where space can arise at the corners of the gate 7 are all blocked with nonpermeable sheets 18.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は断熱箱体に関し、特
に断熱箱体に形成された出入口の隅部の構造の改良に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating box, and more particularly to an improvement in a structure of a corner of an entrance formed in the heat insulating box.

【０００２】[0002]

【従来の技術】従来、出入口部分の構造に特徴を持つ断
熱箱体として、特公平７−９６９９０号公報に記載のも
のが知られている。このものは、一面を開口した外箱内
に、同じく一面を開口した内箱が間隔を開けて収容さ
れ、両箱の開口縁によって方形状の出入口が形成され
る。この出入口では、外箱の開口縁に形成された内方折
曲部と、内箱の開口縁に形成された外方折曲部とが対向
状に配設され、出入口の四辺では両折曲部の表面を覆う
ように化粧枠が嵌め込まれる。一方、出入口の四隅で
は、補強用としてＬ形のコーナ板が両折曲部にわたって
固着され、その表面にコーナカバーが装着される。ここ
で、コーナ板の裏面側には、両折曲部の間の隙間を塞ぐ
ようにして通気性を有するシートが敷かれている。そし
て、外箱と内箱との間に発泡断熱材が充填されることで
断熱箱体が完成されるが、コーナ板の裏面に配された通
気性のシートは、発泡断熱材の洩れを防止する一方で、
適当にガス抜きをして両箱内の全域に良好に発泡断熱材
を回り込ませることに機能している。2. Description of the Related Art Conventionally, as a heat insulating box having a feature in the structure of an entrance / exit portion, one disclosed in Japanese Patent Publication No. 7-96990 is known. In this case, an inner box also having an opening on one side is housed at an interval in an outer box having an opening on one side, and a rectangular doorway is formed by the opening edges of both boxes. At the entrance, an inner bent portion formed at the opening edge of the outer box and an outer bent portion formed at the opening edge of the inner box are arranged in opposition to each other. The decorative frame is fitted so as to cover the surface of the part. On the other hand, at the four corners of the entrance, an L-shaped corner plate is fixed over both bent portions for reinforcement, and a corner cover is attached to the surface thereof. Here, on the back side of the corner plate, a sheet having air permeability is laid so as to close a gap between both bent portions. The insulation box is completed by filling the foam insulation between the outer box and the inner box, but the breathable sheet placed on the back of the corner plate prevents the foam insulation from leaking. While doing
It functions to properly vent the foam and to make the foam insulation material wrap around the entire area in both boxes.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、上記の
ように通気性のシートが敷かれたものでは、発泡圧が高
いとシートを通して発泡断熱材が洩れ出るおそれがあ
り、また例えば両面に出入口を備えた断熱箱体のよう
に、出入口を下に向けた姿勢で発泡断熱材の充填作業を
行わねばならないときには、発泡断熱材の注入時等にシ
ートから液洩れが起きるおそれがあった。本発明は上記
のような事情に基づいて完成されたものであって、発泡
断熱材の洩れをより確実に防止し得る断熱箱体を提供す
ることを目的とする。However, in the case where the air-permeable sheet is laid as described above, if the foaming pressure is high, the foamed heat insulating material may leak through the sheet. When the filling operation of the foamed heat insulating material must be performed with the doorway facing down, as in the case of the heat insulating box body, there is a possibility that the liquid may leak from the sheet when the foamed heat insulating material is injected. The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a heat insulating box that can more reliably prevent leakage of a foamed heat insulating material.

【０００４】[0004]

【課題を解決するための手段】上記の目的を達成するた
めの手段として、請求項１の発明は、少なくとも一面の
開口された外箱内に同じく少なくとも一面の開口された
内箱が間隔を開けて収容されて、前記両箱の開口縁によ
って方形の出入口が形成され、この出入口の各辺では前
記両箱の開口縁の間に化粧枠が装着される一方、前記出
入口の隅部では、前記両箱の開口縁の間にＬ形断面のコ
ーナ板が固着されてその上面にコーナカバーが被着さ
れ、かつ前記両箱の間に発泡断熱材が充填された断熱箱
体において、 前記コーナ板の裏面側に、前記出入口の
隅部に形成される隙間を塞ぐ非通気性のシートを敷設し
た構成としたところに特徴を有する。In order to achieve the above-mentioned object, the invention according to claim 1 is characterized in that at least one open inner box is also provided with a space inside at least one open outer box. And a rectangular doorway is formed by the opening edges of the two boxes, and on each side of the doorway, a decorative frame is mounted between the opening edges of the two boxes, while at the corner of the doorway, A corner plate having an L-shaped cross section is fixed between the opening edges of both boxes, a corner cover is attached to the upper surface thereof, and a foam insulation material is filled between the two boxes. Is characterized in that a non-breathable sheet for closing a gap formed at a corner of the entrance is laid on the back side of the door.

【０００５】請求項２の発明は、請求項１の記載におい
て、前記コーナカバーの一方の裏面には弾性変形可能な
係止片が突設されるとともに、前記コーナ板における前
記係止片の突設された面と対向する面には、前記係止片
が進入してその口縁に係止可能な係止孔が開口されてい
るところに特徴を有する。請求項３の発明は、請求項１
または請求項２の記載において、前記シートが、独立気
泡構造の発泡合成樹脂材または発泡合成ゴム材により形
成されているところに特徴を有する。According to a second aspect of the present invention, in the first aspect of the present invention, an elastically deformable locking piece projects from one back surface of the corner cover, and the locking piece projects from the corner plate. The surface facing the provided surface is characterized in that a locking hole is formed in which the locking piece can enter and be locked at the rim thereof. The invention of claim 3 is claim 1
Alternatively, in the second aspect, the sheet is characterized in that the sheet is formed of a foamed synthetic resin material or a foamed synthetic rubber material having a closed cell structure.

【０００６】請求項４の発明は、請求項２の記載におい
て、前記シートが、伸縮性に優れたゴム材により形成さ
れているところに特徴を有する。請求項５の発明は、請
求項１ないし請求項４のいずれかの記載において、前記
シートは、その端部が前記化粧枠の端部の表面に被さる
ように敷設されているところに特徴を有する。A fourth aspect of the present invention is characterized in that, in the second aspect, the sheet is formed of a rubber material having excellent elasticity. The invention according to claim 5 is characterized in that, in any one of claims 1 to 4, the sheet is laid so that its end covers the surface of the end of the decorative frame. .

【０００７】[0007]

【発明の作用及び効果】＜請求項１の発明＞出入口の隅
部に形成される隙間が非通気性のシートで塞がれている
から、出入口の隅部から発泡断熱材が洩れ出ることが確
実に防止される。 ＜請求項２の発明＞コーナカバーのコーナ板に対する取
り付けがワンタッチで行える反面、コーナ板に大きな係
止孔が開口されるが、この係止孔も非通気性のシートで
塞がれているから、発泡断熱材の洩れが防がれる。 ＜請求項３の発明＞シートが非通気性を保持しつつ弾力
性に富んだものとなり、シートが細かい隙間にまで良く
入り込んでこれを塞ぐことで、発泡断熱材の洩れ止めが
さらに確実になされる。<Operation and effect of the present invention><Invention of claim 1> Since the gap formed at the corner of the entrance is closed by the air-impermeable sheet, the foamed heat insulating material may leak from the corner of the entrance. It is surely prevented. <Invention of Claim 2> While the corner cover can be attached to the corner plate with one touch, a large locking hole is opened in the corner plate, but this locking hole is also closed by a non-breathable sheet. In addition, leakage of the foam insulation is prevented. <Invention of Claim 3> The sheet becomes highly elastic while maintaining the air-impermeable property, and the sheet penetrates well into the small gaps and closes the gaps, so that the leakage of the foamed heat insulating material is more reliably prevented. You.

【０００８】＜請求項４の発明＞シートが伸縮性に富ん
でいるから、コーナカバーの係止片が差し込まれ場合に
も破れることなく、その外面に倣うように伸びて張り付
き、係る状態で係止片が係止孔の口縁に係止される。係
止片の差し込みによっても係止孔が完全に塞がれた状態
が維持され、もって発泡断熱材の洩れ止めが確実になさ
れる。 ＜請求項５の発明＞コーナ板と化粧枠との間の隙間も確
実に塞ぐことができる。<Invention of claim 4> Since the sheet is rich in elasticity, it does not break even when the locking piece of the corner cover is inserted, and it extends and adheres to the outer surface of the corner cover in such a state. The stop piece is locked to the edge of the locking hole. Even when the locking pieces are inserted, the state in which the locking holes are completely closed is maintained, so that the foam insulating material is reliably prevented from leaking. <Invention of Claim 5> The gap between the corner plate and the decorative frame can be reliably closed.

【０００９】[0009]

【発明の実施の形態】以下、本発明の実施形態を添付図
面に基づいて説明する。 ＜第１実施形態＞本発明の第１実施形態を図１ないし図
８によって説明する。図１において、符号１は、貯蔵庫
本体を構成する断熱箱体であって、大まかには、一面に
開口を有する外箱２内に、同じく一面に開口を有する内
箱３が間隔を開けて収容され、両箱２，３の間に発泡ウ
レタン等の発泡断熱材４（図８参照）が充填されるとと
もに、両箱２，３の開口縁の間に化粧枠６が張られて方
形の出入口７が形成されている。この出入口７には、図
示しない断熱扉が揺動開閉可能に装着されるようになっ
ている。Embodiments of the present invention will be described below with reference to the accompanying drawings. <First Embodiment> A first embodiment of the present invention will be described with reference to FIGS. In FIG. 1, reference numeral 1 denotes a heat-insulating box that constitutes a storage main body. In general, an inner box 3 also having an opening on one surface is housed at an interval in an outer box 2 having an opening on one surface. The space between the two boxes 2 and 3 is filled with a foamed heat insulating material 4 such as urethane foam (see FIG. 8), and the decorative frame 6 is stretched between the opening edges of the two boxes 2 and 3 to form a square entrance / exit. 7 are formed. An insulated door (not shown) is swingably opened and closed at the entrance 7.

【００１０】続いて出入口７の構造、特にその隅部の構
造を、正面から見た左下の隅部を例に挙げて説明する。
この隅部では、図２に示すように、外箱２の開口縁に内
側に向けて直角曲げされた内方折曲部１１が形成される
とともに、内箱３の開口縁に外側に向けて直角曲げされ
た外方折曲部１２が形成されて、内方折曲部１１との間
に所定の隙間を開けて対向している。両折曲部１１，１
２の間には、両箱２，３の間に発泡断熱材４を充填した
場合に発泡圧を受けて両箱２，３の間隔が狂うことを防
止する等の理由から、コーナ板１４が取り付けられてい
る。このコーナ板１４は金属板材を断面Ｌ字形に曲げて
形成されており、四隅にリベット孔１５が形成されてい
る。一方、両折曲部１１，１２にも、４個のリベット孔
１６が整合して形成されている。Next, the structure of the doorway 7, particularly the structure of the corner, will be described by taking the lower left corner viewed from the front as an example.
At this corner, as shown in FIG. 2, an inwardly bent portion 11 that is bent inward at a right angle is formed at an opening edge of the outer box 2, and an outward bending is formed at an opening edge of the inner box 3. An outer bent portion 12 bent at a right angle is formed, and faces the inner bent portion 11 with a predetermined gap. Both bent parts 11,1
The corner plate 14 is provided between the two boxes 2 and 3 for the purpose of preventing the gap between the boxes 2 and 3 from being deviated due to the foaming pressure when the foam insulating material 4 is filled between the boxes 2 and 3. Installed. The corner plate 14 is formed by bending a metal plate material into an L-shaped cross section, and has rivet holes 15 at four corners. On the other hand, four rivet holes 16 are also formed in the bent portions 11 and 12 in alignment.

【００１１】このコーナ板１４の裏面側には、ゴムスポ
ンジ製のシート１８が配されるようになっている。具体
的な素材としては、ＥＰＤＭ（発泡合成ゴム）が好適で
ある。このＥＰＤＭは独立気泡構造であって非通気性で
あり、かつ伸縮性に優れた特性を有している。また、断
熱性、耐候性にも優れることが知られている。このシー
ト１８は、コーナ板１４の裏面に折り曲げつつ予め貼り
付けられるようになっており、その幅はコーナ板１４と
ほぼ同じである一方、コーナ板１４の水平面と垂直面の
端縁から少しはみ出る長さ寸法を有している。A sheet 18 made of rubber sponge is arranged on the back side of the corner plate 14. As a specific material, EPDM (foamed synthetic rubber) is suitable. This EPDM has a closed-cell structure, is air-impermeable, and has excellent elasticity. It is also known that they have excellent heat insulation and weather resistance. The sheet 18 is preliminarily bent and attached to the back surface of the corner plate 14, and has a width substantially the same as the corner plate 14, but slightly protrudes from an edge of a horizontal plane and a vertical plane of the corner plate 14. It has a length dimension.

【００１２】コーナ板１４が取り付けられていない部分
では、両折曲部１１，１２の表面を覆うようにして化粧
枠６が嵌め込まれている。化粧枠６の端縁とコーナ板１
４との間には若干の隙間が開く設定である。上記のコー
ナ板１４を隠すようにしてコーナカバー２０が取り付け
られる。このコーナカバー２０は合成樹脂材によって形
成されており、図３に示すように、２枚の閉鎖板２１を
直角に配した断面Ｌ字形に形成されている。このコーナ
カバー２０の両側縁には、裏側に突出したフランジ２２
が形成され、両フランジ２２がコーナ板１４の両側縁の
外側に嵌まるようになっている。In a portion where the corner plate 14 is not attached, the decorative frame 6 is fitted so as to cover the surfaces of both the bent portions 11 and 12. Edge of decorative frame 6 and corner plate 1
This is a setting in which a slight gap is opened between it and No. 4. The corner cover 20 is attached so as to hide the corner plate 14. The corner cover 20 is formed of a synthetic resin material, and has an L-shaped cross section in which two closing plates 21 are arranged at right angles as shown in FIG. On both side edges of the corner cover 20, flanges 22 projecting to the rear side are provided.
Are formed, and both flanges 22 are fitted to the outside of both side edges of the corner plate 14.

【００１３】上記したコーナ板１４の両面には、長方形
の係止孔１７が開口されている。なお、垂直面側の係止
孔１７は除去してもよい。一方、コーナカバー２０の水
平側の閉鎖板２１の裏面には、一対の係止片２４が突設
されている。この係止片２４は、図４に示すように、閉
鎖板２１から垂下して形成された差込本体２５の先端の
外側の位置から、斜め姿勢で折り返された撓み片２６が
形成され、この撓み片２６を内方に撓み変形させつつ、
両係止片２４が上記した係止孔１７内に差し込み可能と
されている。両撓み片２６の外面側には、その高さ方向
のほぼ中央部分から延出端にわたって複数の鋸歯状の係
止歯２７が列設され、この両側の係止歯２７が、係止孔
１７の短辺側の口縁に係止可能となっている。なお図１
に示すように、外箱２における天井面の奥縁側の一端寄
りには、発泡断熱材４の注入口８が開口されているとと
もに、外箱２の天井面と底面における前縁寄りの位置の
両端には、小径のガス抜き孔９が合計４個開口されてい
る。On both sides of the corner plate 14, rectangular locking holes 17 are opened. Note that the locking hole 17 on the vertical surface side may be removed. On the other hand, a pair of locking pieces 24 project from the rear surface of the closing plate 21 on the horizontal side of the corner cover 20. As shown in FIG. 4, the locking piece 24 is formed with a bending piece 26 that is bent obliquely from a position outside the tip of the insertion body 25 that is formed to hang down from the closing plate 21. While bending the bending piece 26 inwardly,
Both locking pieces 24 can be inserted into the locking holes 17 described above. A plurality of saw-tooth-shaped locking teeth 27 are arranged on the outer surface side of both bending pieces 26 from a substantially central portion in a height direction to an extended end thereof. Can be locked to the short side of the rim. FIG. 1
As shown in FIG. 3, an inlet 8 of the foamed heat insulating material 4 is opened near one end of the outer box 2 on the rear edge side of the ceiling surface, and a position near the front edge on the ceiling surface and the bottom surface of the outer box 2. At both ends, a total of four small-diameter gas vent holes 9 are opened.

【００１４】続いて、断熱箱体１の製造手順を説明す
る。外箱２内に内箱３が収容され、出入口７の四辺の両
端を除いた部分に化粧枠６が嵌め込まれる。一方、出入
口７の四隅にはコーナ板１４が取り付けられる。コーナ
板１４の裏面には予めシート１８が貼り付けられ、この
シート１８を貼り付けたコーナ板１４が隅部に当てら
れ、コーナ板１４と両折曲部１１，１２に対応して形成
されたリベット孔１５，１６を利用して、シート１８を
貫通しつつリベット２９が打ち込まれることによって、
図３に示すように、両折曲部１１，１２の間にシート１
８を挟んでコーナ板１４が固定される。このシート１８
によって、両折曲部１１，１２の端縁の間の隙間が表面
側から、またコーナ板１４の係止孔１７が裏面側からそ
れぞれ塞がれる。また、コーナ板１４の両端からはみ出
したシート１８が折れ曲がって、コーナ板１４と化粧枠
６の間の隙間を塞ぐ。これにより、出入口７の隅部にで
きる可能性のある隙間がすべてシート１８により塞がれ
た状態となる。Next, the procedure for manufacturing the heat insulating box 1 will be described. The inner box 3 is accommodated in the outer box 2, and the decorative frame 6 is fitted into a portion of the entrance 7 except for both ends of the four sides. On the other hand, corner plates 14 are attached to the four corners of the entrance 7. A sheet 18 is pasted on the back surface of the corner plate 14 in advance, and the corner plate 14 on which the sheet 18 is pasted is applied to a corner portion, and is formed corresponding to the corner plate 14 and both the bent portions 11 and 12. By using the rivet holes 15 and 16 to drive the rivet 29 through the sheet 18,
As shown in FIG. 3, the sheet 1 is located between the two bent portions 11 and 12.
8, the corner plate 14 is fixed. This sheet 18
As a result, the gap between the ends of the bent portions 11 and 12 is closed from the front side, and the locking hole 17 of the corner plate 14 is closed from the back side. Also, the sheet 18 protruding from both ends of the corner plate 14 is bent to close the gap between the corner plate 14 and the decorative frame 6. As a result, all the gaps possibly formed in the corners of the entrance 7 are closed by the sheet 18.

【００１５】次にコーナカバー２０の取り付けが行われ
る。その場合は、図３及び図４の状態から、垂直な側の
閉鎖板２１のフランジ２２を縦側の化粧枠６の外側に嵌
めてそれに沿わせるように下げることで、一対の係止片
２４をコーナ板１４の係止孔１７内に差し込む。両係止
片２４は、図５に示すように、シート１８をその外側に
沿わせるように引き伸ばし、また両係止片２４自体は内
方に撓み変形しつつ差し込まれ、横向きの化粧枠６に当
たるまで差し込まれると、両係止片２４に設けられた係
止歯２７の一つが、それぞれ係止孔１７の下側の口縁に
弾性的に係止され、コーナカバー２０が抜け止め状態に
取り付けられる。これにより、図６及び図７に示すよう
に、コーナカバー２０が化粧枠６の端縁からコーナ板１
４をすっぽりと覆った状態となる。Next, the corner cover 20 is mounted. In this case, from the state of FIGS. 3 and 4, the flange 22 of the closing plate 21 on the vertical side is fitted to the outside of the decorative frame 6 on the vertical side and lowered so as to be along the same. Into the locking hole 17 of the corner plate 14. As shown in FIG. 5, the both locking pieces 24 are stretched so that the sheet 18 extends along the outside thereof, and the both locking pieces 24 themselves are inserted while being bent and deformed inward, and hit the laterally facing decorative frame 6. When one of the locking pieces 24 is inserted, one of the locking teeth 27 provided on each of the locking pieces 24 is elastically locked to the lower edge of the locking hole 17, and the corner cover 20 is attached in a state where it cannot be removed. Can be Thereby, as shown in FIGS. 6 and 7, the corner cover 20 is moved from the edge of the decorative frame 6 to the corner plate 1.
4 is completely covered.

【００１６】上記のように出入口７の四隅においてコー
ナカバー２０の取り付けが完了したら、図１に示すよう
な断熱箱体１の外殻体が形成される。発泡断熱材４の充
填現場では、断熱箱体１の外殻体が出入口７を上向きに
した姿勢に設置され、外箱２に設けられた注入口８から
両箱２，３の間に発泡断熱材４の原液がノズル等から注
入される。原液は化学変化により次第に発泡して膨ら
み、このときガス抜き孔９から適宜に空気等のガスが外
部に排出されて、図８に示すように、両箱２，３の間に
は万遍なく発泡断熱材４が充填される。When the corner covers 20 have been attached at the four corners of the entrance 7 as described above, the outer shell of the heat insulating box 1 as shown in FIG. 1 is formed. At the filling site of the foam heat insulating material 4, the outer shell of the heat insulating box 1 is installed with the entrance 7 facing upward, and the foam heat insulating between the two boxes 2 and 3 from the inlet 8 provided in the outer box 2. The stock solution of the material 4 is injected from a nozzle or the like. The undiluted solution gradually foams and swells due to a chemical change. At this time, a gas such as air is appropriately discharged to the outside through the gas vent hole 9, and as shown in FIG. The foam insulation 4 is filled.

【００１７】この間、出入口７の四隅において、非通気
性のシート１８によって両折曲部１１，１２の間が塞が
れるとともに、係止孔１７に係止片２４が差し込まれて
いるにも拘わらず、シート１８が伸びて破れることなく
係止孔１７を確実に塞いでおり、またコーナ板１４と化
粧枠６の端縁の隙間も塞がれていることから、仮に発泡
圧が高かった場合でも、出入口７の隅部から発泡断熱材
４が洩れ出る余地はない。なお、発泡圧が高かった場
合、ガス抜き孔９から発泡断熱材４が洩れ出るおそれが
あるが、ガス抜き孔９の設けられた部分は図１に示され
るように平面状であって、入り組んだ構造となっている
出入口７の隅部とは違い、洩れ出た発泡断熱材４を簡単
に除去することができるから、問題はない。最後に、注
入口８が栓体で塞がれるとともに、ガス抜き孔９が化粧
栓で塞がれることによって、断熱箱体１の製造が完了す
る。During this time, at the four corners of the entrance 7, the gap between the two bent portions 11 and 12 is closed by the non-breathable sheet 18, and the locking pieces 24 are inserted into the locking holes 17. However, since the seat 18 is securely closed without extending and breaking, the gap between the corner plate 14 and the edge of the decorative frame 6 is also closed. However, there is no room for the foamed heat insulating material 4 to leak from the corner of the entrance 7. When the foaming pressure is high, the foamed heat insulating material 4 may leak out of the gas vent hole 9, but the portion provided with the gas vent hole 9 is flat as shown in FIG. Unlike the corner portion of the entrance 7 having an oval structure, there is no problem because the leaked foamed heat insulating material 4 can be easily removed. Finally, the injection port 8 is closed with a plug, and the gas vent hole 9 is closed with a decorative plug, whereby the manufacture of the heat-insulating box 1 is completed.

【００１８】このように本実施形態によれば、係止片２
４が差し込まれるコーナ板１４の係止孔１７も含めて、
出入口７の隅部において隙間ができる可能性のある部分
がすべて非通気性のシート１８で塞がれるから、発泡断
熱材４が洩れ出ることを確実に防ぐことができる。ま
た、出入口７が前面と背面の２箇所に設けられるタイプ
の断熱箱体１では、一方の出入口７を下に向けた姿勢で
発泡断熱材４の充填作業を行う必要が生じる場合があ
る。この場合、出入口７の隅部に隙間があると、発泡断
熱材４の原液を注入した場合に、下側に位置する出入口
７の隅部の隙間から原液が洩れ出るおそれがある。その
点この実施形態では、出入口７の隅部の隙間が非通気性
のシート１８で完全に塞がれているから、液洩れが生ず
ることも防がれる。As described above, according to the present embodiment, the locking piece 2
Including the locking hole 17 of the corner plate 14 into which the 4 is inserted,
Since all portions where a gap is likely to be formed at the corner of the entrance 7 are closed by the non-breathable sheet 18, it is possible to reliably prevent the foamed heat insulating material 4 from leaking. Further, in the heat insulating box 1 of the type in which the entrance 7 is provided at two places on the front and the back, it may be necessary to perform the filling operation of the foamed heat insulating material 4 with one entrance 7 facing downward. In this case, if there is a gap at the corner of the entrance 7, when the stock solution of the foamed heat insulating material 4 is injected, the stock solution may leak from the gap at the corner of the entrance 7 located on the lower side. In this respect, in this embodiment, since the gap at the corner of the entrance 7 is completely closed by the non-permeable sheet 18, liquid leakage is also prevented.

【００１９】＜第２実施形態＞次に、本発明の第２実施
形態を図９及び図１０によって説明する。この第２実施
形態では、コーナ板１４の裏面側に配されるシートとし
て、ガムテープ３１が使用されている。第２実施形態で
は、コーナ板１４を取り付ける前に、図９に示すよう
に、出入口７の隅部にガムテープ３１が貼り付けられ
る。この場合は、ガムテープ３１の両端が化粧枠６の端
部の表面を覆うようにして貼り付けられる。続いて、図
１０に示すように、コーナ板１４がガムテープ３１を挟
んで隅部の両折曲部１１，１２の上にリベット２９によ
り固定される。次に、コーナカバー２０の係止片２４が
ガムテープ３１を突き破りつつコーナ板１４の係止孔１
７に差し込まれ、係止歯２７が係止孔１７の口縁に弾性
的に係止することでコーナカバー２０が取り付けられ
る。<Second Embodiment> Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, a gum tape 31 is used as a sheet disposed on the back side of the corner plate 14. In the second embodiment, before the corner plate 14 is attached, as shown in FIG. In this case, the sticking is performed such that both ends of the gum tape 31 cover the surfaces of the ends of the decorative frame 6. Subsequently, as shown in FIG. 10, the corner plate 14 is fixed by rivets 29 on both the bent portions 11 and 12 at the corners with the gum tape 31 interposed therebetween. Next, while the locking pieces 24 of the corner cover 20 pierce the gum tape 31, the locking holes 1 of the corner plate 14 are formed.
7, the locking teeth 27 are elastically locked to the rim of the locking hole 17, and the corner cover 20 is attached.

【００２０】係る状態で同様に両箱２，３の間に発泡断
熱材４が充填される。この際、両折曲部１１，１２の端
縁の間の隙間と係止孔１７、並びにコーナ板１４と化粧
枠６の間の隙間は、非通気性のガムテープ３１で塞がれ
た状態にある。ただ、係止片２４がガムテープ３１を突
き破るから係止片２４の回りに若干の隙間ができるが、
仮にこの隙間から発泡断熱材４が洩れ出したとしても、
上記のようにコーナ板１４と化粧枠６の間の隙間はガム
テープ３１で確実に塞がれているから、コーナカバー２
０の外部まで発泡断熱材４が洩れ出るおそれはほとんど
ない。なお、ガムテープ３１に代えて、紙製の粘着テー
プを用いても、同様の作用効果を得ることができる。In this state, the foam insulation 4 is similarly filled between the boxes 2 and 3. At this time, the gap between the edges of both bent portions 11 and 12 and the locking hole 17, and the gap between the corner plate 14 and the decorative frame 6 are closed by a non-breathable gum tape 31. is there. However, since the locking piece 24 breaks through the adhesive tape 31, there is a slight gap around the locking piece 24,
Even if the foam insulation 4 leaks from this gap,
As described above, the gap between the corner plate 14 and the decorative frame 6 is securely closed by the adhesive tape 31.
There is almost no possibility that the foamed heat insulating material 4 leaks to the outside. The same operation and effect can be obtained by using a paper adhesive tape instead of the gum tape 31.

【００２１】＜第３実施形態＞図１１及び図１２は本発
明の第３実施形態を示す。この第３実施形態では、コー
ナ板１４の裏面側に配されるシート３３が、ＥＰＤＭ
（発泡合成ゴム）を素材として形成されている。このＥ
ＰＤＭは、既述のように独立気泡構造であって非通気性
であり、かつ発泡体であることから弾力性に富んでい
る。第３実施形態の組み付け構造は、以下のようであ
る。シート３３の一面は粘着面となっており、まず図１
１に示すように、シート３３がコーナカバー２０の裏面
に、両端を突出させて貼り付けられる。次に、シート３
３の貼られたコーナ板１４が、出入口７の隅部に当てら
れて両折曲部１１，１２の上に同様にリベット２９によ
り固定される。続いて、図１２に示すように、シート３
３のはみ出た両端をコーナ板１４の表面側に折り返して
貼り付ける。これにより、コーナ板１４の表裏両面にシ
ート３３が巻き付けられた状態となる。併せて、シート
３３の粘着面がすべて隠された状態となる。次に、コー
ナカバー２０の係止片２４がシート３３を突き破りつつ
コーナ板１４の係止孔１７に差し込まれ、係止歯２７が
係止孔１７の口縁に弾性的に係止することでコーナカバ
ー２０が取り付けられる。<Third Embodiment> FIGS. 11 and 12 show a third embodiment of the present invention. In the third embodiment, the sheet 33 disposed on the back surface of the corner plate 14 is
(Foamed synthetic rubber). This E
As described above, the PDM has a closed cell structure, is impermeable to air, and has a high elasticity because it is a foam. The assembly structure of the third embodiment is as follows. One surface of the sheet 33 is an adhesive surface.
As shown in FIG. 1, a sheet 33 is attached to the back surface of the corner cover 20 with both ends protruding. Next, sheet 3
The corner plate 14 to which the number 3 is attached is applied to the corner of the entrance 7 and is similarly fixed on the both bent portions 11 and 12 by the rivets 29. Subsequently, as shown in FIG.
The both protruding ends of 3 are folded back on the surface side of the corner plate 14 and attached. As a result, the sheet 33 is wound on both the front and back surfaces of the corner plate 14. At the same time, the adhesive surface of the sheet 33 is completely hidden. Next, the locking pieces 24 of the corner cover 20 are inserted into the locking holes 17 of the corner plate 14 while breaking through the sheet 33, and the locking teeth 27 are elastically locked on the rim of the locking holes 17. The corner cover 20 is attached.

【００２２】この第３実施形態では、両折曲部１１，１
２の端縁の間の隙間と係止孔１７がシート３３で塞がれ
るとともに、コーナ板１４と化粧枠６の間の隙間には、
シート３３におけるコーナ板１４の端縁を回曲した部分
で埋められる。その際、シート３３は弾力性に富んでい
るから、隙間の細かい部分にまで良く入り込んで良好に
閉鎖する。また、係止片２４がシート３３を突き破るこ
とになるが、上記のようにシート３３が弾力性に富んで
いるから、コーナ板１４の表裏両面において係止片２４
の回りをほぼ密閉状に囲んだ状態にできる。すなわち、
出入口７の隅部での隙間がほぼ完全に塞がれ、発泡断熱
材４の洩れが防止される。In the third embodiment, the two bent portions 11, 1
The gap between the two edges and the locking hole 17 are closed by the sheet 33, and the gap between the corner plate 14 and the decorative frame 6 includes:
The sheet 33 is filled with a bent portion of the edge of the corner plate 14. At this time, since the sheet 33 is rich in elasticity, the sheet 33 penetrates well into a portion having a small gap and is properly closed. Further, although the locking pieces 24 break through the sheet 33, since the sheet 33 is rich in elasticity as described above, the locking pieces 24 are provided on both the front and back surfaces of the corner plate 14.
Can be surrounded in a substantially sealed state. That is,
The gap at the corner of the entrance 7 is almost completely closed, and leakage of the foam insulation 4 is prevented.

【００２３】なお、ＥＰＤＭ製のシート３３に代えて、
独立気泡構造のポリ塩化ビニール発泡体、あるいは同じ
く独立気泡構造のポリエンチレン発泡体を素材としたシ
ートによっても、上記の同様の取付構造を採用でき、同
様の作用効果を得ることができる。In place of the EPDM sheet 33,
The same mounting structure as described above can be adopted by using a sheet made of a PVC foam having a closed cell structure or a polyethylene foam having a closed cell structure as well, and the same operation and effect can be obtained.

【００２４】＜第４実施形態＞図１３に示す第４実施形
態は、コーナ板１４にモルトプレーン３５を巻き付ける
一方、出入口７の隅部側には、非通気性である紙テープ
３６を配したものである。紙テープ３６の両端は、化粧
枠６の端部の表面を覆えるようになっている。同様にリ
ベット２９によりコーナ板１４を固定すると、両折曲部
１１，１２の端縁の間と係止孔１７とが紙テープ３６で
塞がれるとともに、コーナ板１４と化粧枠６の間の隙間
は、モルトプレーン３５の弾力で紙テープ３６が化粧枠
６の端縁に押し付けられることで閉鎖される。なお、モ
ルトプレーン３５と紙テープ３６とは係止片２４で突き
破られることになるが、係止片２４の回りは圧縮された
モルトプレーン３５で囲われた状態となって隙間は小さ
なもの留められるし、仮にこの隙間から発泡断熱材４が
洩れ出したとしても、上記のようにコーナ板１４と化粧
枠６の間の隙間は紙テープ３６で塞がれているから、コ
ーナカバー２０の外部まで発泡断熱材４が洩れ出るおそ
れはほとんどない。<Fourth Embodiment> In a fourth embodiment shown in FIG. 13, a malt plane 35 is wound around a corner plate 14, while a non-breathable paper tape 36 is arranged at the corner of the entrance 7 It is. Both ends of the paper tape 36 can cover the surface of the end of the decorative frame 6. Similarly, when the corner plate 14 is fixed by the rivets 29, the gap between the edges of both the bent portions 11 and 12 and the locking hole 17 are closed with the paper tape 36, and the gap between the corner plate 14 and the decorative frame 6 is formed. Is closed by the paper tape 36 being pressed against the edge of the decorative frame 6 by the elasticity of the malt plane 35. The malt plane 35 and the paper tape 36 are pierced by the locking pieces 24, but the surroundings of the locking pieces 24 are surrounded by the compressed malt plane 35, and small gaps are retained. Even if the foam insulation 4 leaks from this gap, the gap between the corner plate 14 and the decorative frame 6 is closed by the paper tape 36 as described above. There is almost no possibility that the heat insulating material 4 leaks out.

【００２５】＜他の実施形態＞本発明は上記記述及び図
面によって説明した実施形態に限定されるものではな
く、例えば次のような実施形態も本発明の技術的範囲に
含まれ、さらに、下記以外にも要旨を逸脱しない範囲内
で種々変更して実施することができる。 （１）コーナ板の取付具として、上記実施形態のリベッ
トに代えてネジを用いてもよい。 （２）コーナカバーは、係止片を差し込む構造に代えて
ネジ等の締結具で取り付けるようにしてもよく、そのよ
うな形式のものにも本発明は同様に適用することができ
る。<Other Embodiments> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention. In addition, various changes can be made without departing from the scope of the invention. (1) A screw may be used as a fixture for the corner plate instead of the rivet of the above embodiment. (2) The corner cover may be attached with a fastener such as a screw instead of the structure into which the locking piece is inserted, and the present invention can be similarly applied to such a type.

【図面の簡単な説明】[Brief description of the drawings]

【図１】 本発明の第１実施形態に係る断熱箱体の斜視
図FIG. 1 is a perspective view of a heat-insulating box according to a first embodiment of the present invention.

【図２】 出入口の隅部の分解斜視図FIG. 2 is an exploded perspective view of a corner of a doorway.

【図３】 コーナカバーを取り付ける前の斜視図FIG. 3 is a perspective view before a corner cover is attached.

【図４】 その断面図FIG. 4 is a sectional view thereof.

【図５】 コーナカバーを取り付けた後の断面図FIG. 5 is a sectional view after a corner cover is attached.

【図６】 その裏側から見た斜視図FIG. 6 is a perspective view seen from the back side.

【図７】 その表側から見た斜視図FIG. 7 is a perspective view seen from the front side.

【図８】 発泡断熱材が充填された後の縦断面図FIG. 8 is a longitudinal sectional view after the foam insulation material is filled.

【図９】 第２実施形態に係るコーナ板を取り付ける前
の状態の断面図FIG. 9 is a sectional view of a state before a corner plate according to the second embodiment is attached.

【図１０】 コーナ板の取付後の断面図FIG. 10 is a cross-sectional view after a corner plate is attached.

【図１１】 第３実施形態に係るコーナ板を取り付ける
前の状態の断面図FIG. 11 is a sectional view of a state before a corner plate according to a third embodiment is attached.

【図１２】 コーナ板の取付後の断面図FIG. 12 is a cross-sectional view after a corner plate is mounted.

【図１３】 第４実施形態に係るコーナ板を取り付ける
前の状態の断面図FIG. 13 is a sectional view of a state before a corner plate according to a fourth embodiment is attached.

【符号の説明】[Explanation of symbols]

１…断熱箱体 ２…外箱 ３…内箱 ６…化粧枠 ７…
出入口 １１…内方折曲部 １２…外方折曲部 １４…
コーナ板 １７…係止孔 １８…シート ２０…コーナ
カバー ２４…係止片 ２７…係止歯 ２９…リベット
３１…ガムテープ ３３…シート ３６…紙テープ1 ... heat insulation box 2 ... outer box 3 ... inner box 6 ... decorative frame 7 ...
Entrance 11 ... Inward bent part 12 ... Outward bent part 14 ...
Corner plate 17: Locking hole 18: Sheet 20: Corner cover 24: Locking piece 27: Locking teeth 29: Rivets 31: Gum tape 33: Sheet 36: Paper tape

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】 少なくとも一面の開口された外箱内に同
じく少なくとも一面の開口された内箱が間隔を開けて収
容されて、前記両箱の開口縁によって方形の出入口が形
成され、この出入口の各辺では前記両箱の開口縁の間に
化粧枠が装着される一方、前記出入口の隅部では、前記
両箱の開口縁の間にＬ形断面のコーナ板が固着されてそ
の上面にコーナカバーが被着され、かつ前記両箱の間に
発泡断熱材が充填された断熱箱体において、 前記コーナ板の裏面側に、前記出入口の隅部に形成され
る隙間を塞ぐ非通気性のシートを敷設したことを特徴と
する断熱箱体。1. An inner box having at least one open side is also housed at a distance in an at least one open outer box, and a rectangular doorway is formed by the open edges of the two boxes. On each side, a decorative frame is mounted between the opening edges of the two boxes, and at the corner of the entrance, a corner plate having an L-shaped cross section is fixed between the opening edges of the two boxes, and a corner is provided on the upper surface thereof. In a heat-insulating box body covered with a cover and filled with a foam heat-insulating material between the two boxes, a non-breathable sheet that closes a gap formed at a corner of the entrance on the back side of the corner plate A heat insulation box characterized by laying. 【請求項２】 前記コーナカバーの一方の裏面には弾性
変形可能な係止片が突設されるとともに、前記コーナ板
における前記係止片の突設された面と対向する面には、
前記係止片が進入してその口縁に係止可能な係止孔が開
口されていることを特徴とする請求項１記載の断熱箱
体。2. An elastically deformable locking piece is protruded from one back surface of the corner cover, and a surface of the corner plate facing the protruding surface of the locking piece is provided with:
2. The heat insulating box according to claim 1, wherein a locking hole into which the locking piece enters and which can be locked is opened. 【請求項３】 前記シートが、独立気泡構造の発泡合成
樹脂材または発泡合成ゴム材により形成されていること
を特徴とする請求項１または請求項２記載の断熱箱体。3. The heat insulating box according to claim 1, wherein the sheet is formed of a foamed synthetic resin material or a foamed synthetic rubber material having a closed cell structure. 【請求項４】 前記シートが、伸縮性に優れたゴム材に
より形成されていることを特徴とする請求項２記載の断
熱箱体。4. The heat insulating box according to claim 2, wherein the sheet is formed of a rubber material having excellent elasticity. 【請求項５】 前記シートは、その端部が前記化粧枠の
端部の表面に被さるように敷設されていることを特徴と
する請求項１ないし請求項４のいずれかに記載の断熱箱
体。5. The heat-insulating box according to claim 1, wherein the sheet is laid so that an end of the sheet covers an end surface of the decorative frame. .
JP35500198A 1998-12-14 1998-12-14 Insulated box Expired - Fee Related JP3398334B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35500198A JP3398334B2 (en) 1998-12-14 1998-12-14 Insulated box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35500198A JP3398334B2 (en) 1998-12-14 1998-12-14 Insulated box

Publications (2)

Publication Number Publication Date
JP2000180039A true JP2000180039A (en) 2000-06-30
JP3398334B2 JP3398334B2 (en) 2003-04-21

Family

ID=18441311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35500198A Expired - Fee Related JP3398334B2 (en) 1998-12-14 1998-12-14 Insulated box

Country Status (1)

Country Link
JP (1) JP3398334B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002022350A (en) * 2000-07-03 2002-01-23 Hoshizaki Electric Co Ltd Heat insulating box
CN108278848A (en) * 2018-02-07 2018-07-13 安徽海博家电科技有限公司 A kind of refrigerator bottom steel plate
CN110497569A (en) * 2019-09-26 2019-11-26 佛且环境技术(上海)有限公司 A kind of growth chamber and processing technology being integrally formed high-pressure foaming process
US10808989B2 (en) 2016-12-23 2020-10-20 Samsung Electronics Co., Ltd. Refrigerator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002022350A (en) * 2000-07-03 2002-01-23 Hoshizaki Electric Co Ltd Heat insulating box
US10808989B2 (en) 2016-12-23 2020-10-20 Samsung Electronics Co., Ltd. Refrigerator
CN108278848A (en) * 2018-02-07 2018-07-13 安徽海博家电科技有限公司 A kind of refrigerator bottom steel plate
CN110497569A (en) * 2019-09-26 2019-11-26 佛且环境技术(上海)有限公司 A kind of growth chamber and processing technology being integrally formed high-pressure foaming process

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