JPH10288450A - Reach-in type refrigerated showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the cold storage performance by preventing intrusion of outer air, leakage of chill through a thermally insulated sliding door arranged on the back side of a case body as well as dew formation. SOLUTION: A thermally insulated sliding door 6 comprising sliding doors 6A, 6B is provided at the opening on the back of a case body 1 provided with a double swing doors on the front and E-shaped rails 7 having two rail grooves at the upper and lower ends is laid at the upper and lower ends thereof in order to guide and support the sliding door in the opening/closing direction. In such a reach-in type refrigerated showcase, the sliding door 6A is applied with a gasket 8 along the rear side at the side edge of a sash 6a in order to choke a gap occurring at the overlapped part of the sliding doors 6A, 6B when the thermally insulated door is closed. Furthermore, the upper and lower rails are provided, respectively, with a tip packing 9 stretching back and forth at the forward end of a center rib 7a along the longitudinal direction thereof in order to choke the gap between the sliding door and the rail thus preventing intrusion of outer air, leakage of chill and dew formation.

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】この発明は、ケース本体の背
面開口部に商品補充扉として引違い戸式の断熱扉を配し
たリーチイン形冷蔵ショーケースに関し、詳しくは前記
断熱扉のシール構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reach-in type refrigerated showcase in which a sliding door type heat-insulating door is provided as an article replenishment door in a rear opening of a case body, and more particularly to a seal structure of the heat-insulating door.

【０００２】[0002]

【従来の技術】まず、この発明の実施対象となる背面扉
付きのリーチイン形冷蔵ショーケースの構成を図２に示
す。図１において、１は前面，背面を開口した断熱筐体
としてなるケース本体、１ａのその外箱、１ｂは内箱、
２はケース本体１の庫内に配備した商品陳列棚、３は外
箱１と内箱２の間に画成した冷気循環ダクトの底部側ダ
クト内に組み込んだ冷却器（冷凍機のエバポレータ）、
４は冷気循環ファン、５はケース本体１の前面開口部に
配した観音開き式のガラス扉、６はケース本体１の背面
開口部に配した引違い戸式断熱扉、７は断熱扉６を案内
支持するようにケース本体１の背面開口部の上下に敷設
したレールである。2. Description of the Related Art First, FIG. 2 shows a configuration of a reach-in type refrigerated showcase with a back door to which the present invention is applied. In FIG. 1, reference numeral 1 denotes a case body serving as a heat-insulated housing having front and rear openings, 1a an outer box thereof, 1b an inner box,
2 is a product display shelf provided in the cabinet of the case body 1, 3 is a cooler (evaporator of a refrigerator) incorporated in a bottom-side duct of a cool air circulation duct defined between the outer box 1 and the inner box 2,
4 is a cooling air circulation fan, 5 is a double door type glass door arranged at the front opening of the case body 1, 6 is a sliding door type insulation door arranged at the back opening of the case body 1, and 7 is a guidance of the insulation door 6. These rails are laid above and below the back opening of the case body 1 to support it.

【０００３】ここで、前記した引違い戸式の断熱扉６は
図３(a) 〜(c) で示すように左右に分けた２枚の引き戸
６Ａ，６Ｂ（大形ショーケースでは引き戸が３枚に分け
てある例もある）からなり、各引き戸６Ａ，６Ｂは車輪
付きのサッシ６ａに複合ガラス６ｂを嵌め込んだ把手６
ｃ付きの構造になる。一方、断熱扉６の引き戸６Ａ，６
Ｂを案内する上下のレール７，８は、図４（図４は上部
側のレールを示す）のように断面が“ヨ字形”になるア
ルミの引き抜き成形品で、そのセンターリブ７ａを挟ん
で前後に並ぶ２条のレール溝７ｂ，７ｃにそれぞれ前記
の引き戸６Ａ，６Ｂを嵌め込んで左右方向へスライド可
能に案内支持している。As shown in FIGS. 3A to 3C, the sliding door type heat insulating door 6 has two sliding doors 6A and 6B which are divided into right and left (in a large showcase, the sliding door has three sliding doors). Each sliding door 6A, 6B has a handle 6 in which a composite glass 6b is fitted into a sash 6a with wheels.
It becomes a structure with c. On the other hand, the sliding doors 6A, 6A
The upper and lower rails 7 and 8 for guiding B are aluminum pultruded products having a "Y-shaped" cross section as shown in FIG. 4 (FIG. 4 shows the upper rail), and sandwich the center rib 7a. The sliding doors 6A, 6B are fitted into two rail grooves 7b, 7c arranged in front and rear, respectively, and are slidably guided in the left-right direction.

【０００４】かかる構成のリーチイン形冷蔵ショーケー
スでは、店内の通路側から客が前面側のガラス扉５を開
いて庫内の商品陳列棚２から商品を取出し、商品が少な
った場合には背面側の断熱扉６を開いてショーケースの
裏側から商品を補充する。In the reach-in type refrigerated showcase having such a configuration, a customer opens the front glass door 5 from the aisle side of the store and takes out the products from the product display shelf 2 in the storeroom. The side heat-insulating door 6 is opened to replenish the goods from the back side of the showcase.

【０００５】[0005]

【発明が解決しようとする課題】ところで、前記した背
面側に引違い戸式の断熱扉を備えたリーチイン形冷蔵シ
ョーケースでは、前面側の観音開き式のガラス扉は、そ
の内側周縁に敷設したガスケット（例えば磁気吸着ガス
ケット）をケース本体１の前面に密着させてほぼ完全に
シールできるが、引違い戸式の断熱扉６は、図３で判る
ように引き戸６Ａ，６Ｂが閉じている状態でも、背面側
開口部の中央で前後に重なり合って並ぶ各引き戸のサッ
シ枠（６Ａの右側縁と扉６Ｂの左側縁）の間には遊び隙
間ｇ1 が残っており、ショーケースの保冷運転時には庫
内外の温度差が基で前記の隙間ｇ1を通して扉の上半域
では温度の高い外気が庫内に侵入し、下半域では逆に庫
内の冷気が庫外に漏出するといった温度換気が発生す
る。In the reach-in type refrigerated showcase provided with a sliding door type heat insulating door on the rear side, the double-door type glass door on the front side is provided with a gasket laid on the inner peripheral edge thereof. (For example, a magnetic adsorption gasket) can be almost completely sealed by closely adhering to the front surface of the case body 1. However, the sliding door type insulated door 6, even when the sliding doors 6A and 6B are closed as shown in FIG. A play gap g1 remains between the sash frames (the right edge of 6A and the left edge of the door 6B) of the sliding doors that overlap one another at the center of the rear side opening, and when the showcase is in the cold operation, the inside and outside of the refrigerator are kept. Due to the temperature difference, temperature ventilation occurs in the upper half area of the door through the gap g1 so that outside air having a high temperature enters the interior of the door, and in the lower half area, cold air in the interior leaks out of the interior.

【０００６】また、図４から判るように、レール７のレ
ール溝７ｂ，７ｃとこのレール溝に嵌まり込んでいる引
き戸６Ａ，６Ｂのサッシ枠との間にも遊びの隙間ｇ2 が
残っており、この隙間ｇ2 を通して前記と同様に外気の
庫内侵入，庫内冷気の漏出が発生する。しかも、このよ
うに庫内外の間で温度換気が発生すると、庫内の冷却効
率が低下するのみならず、外気の湿気で引き戸, レール
部分の内側に結露が生じてその周辺を濡らすといった不
具合が生じる。As can be seen from FIG. 4, a play gap g2 remains between the rail grooves 7b and 7c of the rail 7 and the sash frames of the sliding doors 6A and 6B fitted in the rail grooves. As described above, outside air enters the inside of the refrigerator and leaks cold air through the clearance g2. In addition, when temperature ventilation occurs between the inside and outside of the refrigerator in this way, not only does the cooling efficiency in the refrigerator decrease, but also the drawback is that moisture inside the sliding doors and rails creates dew inside the rails and wets the surrounding area. Occurs.

【０００７】この発明は上記の点に鑑みなされたもので
あり、その目的は前記課題を解決し、ケース本体の背面
側に配した引違い戸式断熱扉部分からの外気の庫内侵
入, 庫内冷気の漏出、および結露発生を効果的に防止し
て保冷性能の改善を図ったリーチイン形冷蔵ショーケー
スを提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to solve the above-mentioned problems, and to allow outside air to enter a refrigerator from a sliding door type heat insulating door disposed on the back side of a case body. It is an object of the present invention to provide a reach-in type refrigerated showcase in which leakage of internal cold air and dew condensation are effectively prevented and cold storage performance is improved.

【０００８】[0008]

【課題を解決するための手段】上記目的を達成するため
に、この発明によれば、商品陳列棚，冷却ユニットを内
蔵したケース本体の前面，背面を開口し、前面開口部に
観音開き式のガラス扉，背面開口部には引違い戸式断熱
扉を装備するとともに、背面開口部の上下端に２条のレ
ール溝を有する断面“ヨ字形”のレールを敷設して前記
断熱扉をスライド可能に案内支持したリーチイン形冷蔵
ショーケースにおいて、前記断熱扉を閉じた状態で引き
戸の重なり合い部の相互間に生じる隙間を塞ぐように、
引き戸の側枠対向面に沿って上下方向にガスケットを設
けるとともに、上下の各レールの長手方向に沿ってその
センターリブの先端に前後へ張り出して各引き戸との間
の隙間を塞ぐように接触型のパッキンを設けて構成す
る。According to the present invention, in order to achieve the above-mentioned object, the front and rear sides of a case main body containing a merchandise display shelf and a cooling unit are opened, and a double-opening glass is provided in the front opening. The door and the rear opening are equipped with sliding door type heat-insulating doors, and the insulation door is slidable by laying a rail with a cross section "Y-shaped" with two rail grooves at the upper and lower ends of the rear opening. In the reach-in type refrigerated showcase supported by the guide, so as to close a gap generated between overlapping portions of the sliding doors in a state where the heat insulating door is closed,
A gasket is provided in the vertical direction along the side facing the side frame of the sliding door, and the contact type is formed so as to protrude forward and backward at the tip of the center rib along the longitudinal direction of each of the upper and lower rails to close the gap between each sliding door. Is provided.

【０００９】上記の構成によれば、引違い戸式断熱扉を
閉じた状態では各引き戸の相互間，および各引き戸と上
下のレールとの間の隙間がガスケット，パッキン部材で
閉塞され、外気の庫内侵入経路，庫内冷気の漏出経路が
形成されなくなる。これにより、庫内の冷却効率が向上
するとともに、結露の発生も効果的に防止できる。ま
た、この発明によれば、前記構成におけるガスケットに
弾力性のある材料より作られた帯状のガスケットを採用
し、パッキンとしては可撓性のある弾性材料で作られた
リップパッキンを採用するものとする。According to the above configuration, when the sliding door type heat insulating door is closed, the gaps between the sliding doors and the gaps between the sliding doors and the upper and lower rails are closed by the gasket and the packing member, and the outside air is blocked. The intrusion route and the cold air leakage route are not formed. Thereby, the cooling efficiency of the inside of the refrigerator is improved, and the occurrence of dew condensation can be effectively prevented. Further, according to the present invention, the gasket in the above configuration employs a band-shaped gasket made of a resilient material, and the packing employs a lip packing made of a flexible elastic material. I do.

【００１０】[0010]

【発明の実施の形態】以下、この発明の実施の形態を図
１(a) 〜(c) の実施例に基づいて説明する。なお、実施
例の図中で図３，図４に対応する部材には同じ符号が付
してある。この実施例において、図３，図４に示した従
来構造と異なる点は、次の２点にある。まず、引違い戸
式断熱扉６の各引き戸６Ａ，６Ｂのいずれか一方の引き
戸，図示例では図３(a) における左側の引き戸６Ａに対
して、サッシ６ａの右側枠に沿って引き戸６Ｂと向かい
合う裏側面に弾力性のある材料で作られたガスケット８
を上下方向に布設し、断熱扉６を閉じた状態で前後に重
なり合う引き戸６Ａと６Ｂのサッシ相互間に生じる隙間
ｇ1 をガスケット８で塞ぐようにしている。なお、図中
で６ｄは引き戸の車輪、６ｅは引き戸の左右両端面に取
付けた衝撃緩和用のゴム製ストッパである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 (a) to 1 (c). In the drawings of the embodiment, members corresponding to FIGS. 3 and 4 are denoted by the same reference numerals. This embodiment is different from the conventional structure shown in FIGS. 3 and 4 in the following two points. First, with respect to one of the sliding doors 6A and 6B of the sliding door type insulated door 6, that is, the sliding door 6A on the left side in FIG. 3A in the illustrated example, the sliding door 6B is moved along the right frame of the sash 6a. Gasket 8 made of resilient material on opposite back side
Are laid in the up-down direction, and a gap g1 generated between the sashes of the sliding doors 6A and 6B which overlap each other in a state where the heat insulating door 6 is closed is closed by the gasket 8. In the drawing, 6d is a wheel of a sliding door, and 6e is a rubber stopper for shock absorption mounted on both left and right end surfaces of the sliding door.

【００１１】さらに、上下のレール７（図示では下部の
レールを示している）に対し、その長手方向に沿ってセ
ンターリブ７ａの先端には、前後へ張り出して各引き戸
６Ａ，６Ｂの上下サッシ枠との間の隙間ｇ2 を塞ぐよう
にゴムなどの可撓性のある弾性材料で作られたリップパ
ッキン（接触型パッキン）９が取付けてある。なお、７
ｄはレール７の各レール溝内に敷設して断熱扉６の車輪
６ｄを載せる軌条である。Further, the upper and lower rails 7 (the lower rails are shown in the figure) are extended along the longitudinal direction at the end of a center rib 7a so as to extend forward and backward, and the upper and lower sash frames of the sliding doors 6A and 6B are provided. A lip packing (contact type packing) 9 made of a flexible elastic material such as rubber is attached so as to close a gap g2 between them. Note that 7
d is a rail laid in each rail groove of the rail 7 to mount the wheel 6d of the heat insulating door 6.

【００１２】前記構成のように、引違い戸式断熱扉６の
引き戸に布設したガスケット８と、レール７のセンター
リブ７ａに設けたリップパッキン９を併用することによ
り、断熱扉６を閉じた状態で、引き戸６Ａと６Ｂとの重
なり面，および上下のレール７と各引き戸６Ａ，６Ｂと
の嵌め合い部に残る隙間ｇ1,ｇ2 がそれぞれガスケット
８，パッキン９で塞がれる。これにより、図３，図４で
述べた外気の庫内侵入経路，および庫内冷気の漏出経路
が形成されなくなり、その結果として冷却性能の向上、
並びに引き戸，レール部分に生じる結露を防止できる。As described above, the gasket 8 laid on the sliding door of the sliding door type heat insulating door 6 and the lip packing 9 provided on the center rib 7a of the rail 7 are used together to close the heat insulating door 6. Thus, the gaps g1 and g2 remaining in the overlapping surfaces of the sliding doors 6A and 6B and the fitting portions between the upper and lower rails 7 and the sliding doors 6A and 6B are closed by the gasket 8 and the packing 9, respectively. Accordingly, the outside air intrusion route and the cold air leakage route described in FIGS. 3 and 4 are not formed, and as a result, the cooling performance is improved.
In addition, dew condensation on the sliding doors and rails can be prevented.

【００１３】しかも、前記のガスケット８，リップパッ
キン９に可撓性，弾力性料を持たせることで、断熱扉６
の開閉がスムーズに行える。Further, by providing the gasket 8 and the lip packing 9 with a flexible and elastic material, the heat insulating door 6 can be provided.
Can be opened and closed smoothly.

【００１４】[0014]

【発明の効果】以上述べたように、この発明の構成によ
れば、ケース本体の背面側開口部に配した引違い戸式の
断熱扉を閉じた状態で左右に並ぶ引き戸の間に生じる隙
間，および上下側のレールと引き戸との間に生じる隙間
を、それぞれ引き戸の側枠に布設したガスケット，およ
びレールのセンターリブに設けたパッキンで塞ぐように
したので、これにより外気の庫内侵入，庫内冷気の庫外
漏出を阻止して冷却効率を向上するとともに、併せて断
熱扉の引き戸，レールに結露が生じるのを効果的に防止
できる。As described above, according to the structure of the present invention, the gap formed between the sliding doors arranged side by side in the closed state of the sliding door type insulated door disposed at the back side opening of the case body. , And the gaps formed between the upper and lower rails and the sliding doors are closed by gaskets laid on the side frames of the sliding doors and packings provided on the center ribs of the rails. Cooling efficiency can be improved by preventing cold air inside the refrigerator from leaking out of the refrigerator, and at the same time, dew can be effectively prevented from forming on the sliding doors and rails of the heat insulating door.

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

【図１】この発明の実施例の構成図であり、(a) はケー
ス本体の背面側に配した引違い戸式断熱扉の下部側レー
ル部分の拡大断面図、(b) は(a) 図におけるガスケット
付き引き戸の裏面図、(c) は同底面図FIG. 1 is a configuration diagram of an embodiment of the present invention, (a) is an enlarged cross-sectional view of a lower rail portion of a sliding door type heat insulating door disposed on the back side of a case main body, and (b) is (a) Back view of sliding door with gasket in figure, (c) is bottom view of the same

【図２】この発明の実施対象となるリーチイン形冷蔵シ
ョーケース全体の構成断面図FIG. 2 is a cross-sectional view of the entire reach-in type refrigerated showcase to which the present invention is applied;

【図３】図２におけるケース本体の背面側に配した引違
い戸式断熱扉の従来構造図であり、(a) は背面図、(b)
は縦断側面図、(c) は横断面図3 is a conventional structural view of a sliding door type heat insulating door arranged on the back side of a case main body in FIG. 2, (a) is a rear view, (b)
Is a vertical side view, and (c) is a cross-sectional view.

【図４】図３における断熱扉の上部側レール部分の拡大
断面図FIG. 4 is an enlarged sectional view of an upper rail portion of the heat insulating door in FIG. 3;

【符号の説明】[Explanation of symbols]

１ ケース本体 ２ 商品陳列棚 ３ 冷却器 ４ 冷気循環ファン ５ 前面側のガラス扉 ６ 断熱扉 ７ レール ７ａ センターリブ ８ ガスケット ９ リップパッキン DESCRIPTION OF SYMBOLS 1 Case main body 2 Commodity display shelf 3 Cooler 4 Cooling air circulation fan 5 Front glass door 6 Insulated door 7 Rail 7a Center rib 8 Gasket 9 Lip packing

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】商品陳列棚，冷却ユニットを内蔵したケー
ス本体の前面，背面を開口するとともに、前面開口部に
観音開き式のガラス扉，背面開口部には複数枚の引き戸
からなる引違い戸式の断熱扉を装備したリーチイン形冷
蔵ショーケースであり、背面開口部の上下端に２条のレ
ール溝を有する断面“ヨ字形”のレールを敷設して各引
き戸を開閉方向に案内支持したものにおいて、前記断熱
扉を閉じた状態で引き戸の重なり合い部の相互間に生じ
る隙間を塞ぐように、引き戸の側枠対向面に沿って上下
方向にガスケットを設けるとともに、上下の各レールの
長手方向に沿ってそのセンターリブの先端に前後へ張り
出して各引き戸との間の隙間を塞ぐように接触型のパッ
キンを設けたことを特徴とするリーチイン形冷蔵ショー
ケース。1. A sliding door system comprising: a front and a back of a case main body containing a product display shelf and a cooling unit; a double-door glass door at a front opening; and a plurality of sliding doors at a rear opening. Reach-in type refrigerated showcase equipped with a heat-insulated door, with a "Y-shaped" cross-section rail having two rail grooves at the upper and lower ends of the back opening, and guiding each sliding door in the opening and closing direction. A gasket is provided vertically along the side frame facing surface of the sliding door so as to close a gap formed between overlapping portions of the sliding door in a state where the heat insulating door is closed, and along a longitudinal direction of each of the upper and lower rails. A reach-in type refrigerated showcase, characterized in that a contact-type packing is provided so as to protrude forward and backward at the end of the center rib to close a gap between each sliding door. 【請求項２】請求項１記載のショーケースにおいて、ガ
スケットが弾力性のある材料より作られた帯状のガスケ
ットであることを特徴とするリーチイン形冷蔵ショーケ
ース。2. The reach-in type refrigerated showcase according to claim 1, wherein the gasket is a strip-shaped gasket made of a resilient material. 【請求項３】請求項１記載のショーケースにおいて、パ
ッキンが可撓性のある弾性材料で作られたリップパッキ
ンであることを特徴とするリーチイン形冷蔵ショーケー
ス。3. The reach-in type refrigerated showcase according to claim 1, wherein the packing is a lip packing made of a flexible elastic material.