JP2003207264A - Method for sealing gap of roll type heat insulation shutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a countermeasure for leaking cold air from an adjacent or end gap at the time of attaching a roll type heat insulation shutter drawer in order to save electricity consumption of food refrigerating open showcase installed to a large store such as a supermarket. <P>SOLUTION: A roll 6 entangling a seal membrane 5 wider than a gap M is attached and pulled down at the top position of the gap M of roll type heat insulation membranes 4A, 4B arranged at a constant interval at the top of every showcase of constant length, and is brought into face contact with the surfaces on both ends of the heat insulation membranes 4A, 4B. A gap N of plate edges on both sides of the open showcase 1 can be sealed by overlaying the rear face of a fin-like seal membrane 10 with its outside end jointed to the inner face of the side plate on the end surface of the heat insulation membrane 4A for performing face contact. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to preventing cold air from leaking in a straight type continuous or as a single unit of a refrigerating / freezing open showcase that is adjacent to a roll type cool shutter that slides up and down and a gap between both ends. Related to the sealing method.

[0002]

2. Description of the Related Art Conventionally, in a refrigerating / freezing open showcase, it is incorporated in a refrigerating case for keeping cold at night.
A roll curtain made of resin film, commonly known as a night curtain, is pulled out to shield the frontage, but the adjacent gaps and gaps at both ends are attached without sealing. Cold air continued to leak at night and the energy saving effect was extremely low.

[0003]

An existing roll-type curtain for shielding the front opening of a showcase or heat insulation for the purpose of saving power consumption of an open showcase for refrigerating and freezing foods installed in a large food store By using a sheet-like shutter with high flexibility, the adjacency that occurs when the drawer is attached,
Or, seal the end gap to prevent cold air leakage, and
It is an object of the present invention to provide an effective sealing method for a gap part, which can be easily attached and detached repeatedly and can be vertically slid without any trouble when opening and closing the cold insulation shutter.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is a vertical slide type incorporated in the front upper storage portion of each showcase of frontage standard length type continuously arranged in a store. In order to seal the cold air leak in each adjacent gap part that occurs when the roll type cold insulation shutter with a built-in spring for shielding the front opening is installed in the drawer, it is wider than this clearance part in the upper position of the intermediate insulation film. A flexible film of a predetermined width is provided on both sides of the cold insulation film with overlapping margins, or a seal film roll with a cold insulation sheet is placed, and it is first pulled out and mounted in the showcase opening. This sealing film is pulled down and superposed on the surfaces of both ends of the cold insulation film where a gap is created, and they are brought into surface contact with each other, and the locking part provided below the sealing film is locked to the handrail part of the showcase etc. From the department Thereby making it possible to seal the gas leakage.
Further, it is possible to stop at a predetermined position by the dead weight of the seal film or a stop mechanism.

Further, according to the present invention, the roll-type cold insulation film itself to be installed in the frontage of the showcase is arranged by alternately providing steps in the horizontal direction and by providing a stacking margin at the end portions in the width direction. When the film is pulled down, both ends of each film are partially polymerized in the vertical direction and brought into surface contact with each other to seal the adjacent gaps of each cold insulating film.

Further, according to the present invention, since the roll type cold insulating film is attached to the front side of the stand alone, or the showcases are continuously arranged, the gap seals are provided at the end portions of the side plates. A state in which a sealing film using a fin-like elastic sheet with a width is provided, the outer end of this sealing film is joined and fixed in the vertical direction and closely attached, and the inner end of the mounted sealing film is lifted to the front. Pull down the cold insulation film with, and the back surface of the fin-shaped sealing film makes surface contact with both ends of the front surface of the cold insulation film by the elastic restoring force of this sheet, and seals the cool air leakage from the gap between the edges of the showcase side plates. Is possible.

Therefore, the sealing method for the intermediate adjacent gap portion of the cold insulating shutter for the showcase uses the existing roll type cold insulating film as it is as described above, and the roll of a predetermined width is attached to the upper position of the gap portion. The sealing film can be pulled out to bring both ends of the cold insulation film into surface contact, or the ends of the cold insulation film can be overlapped with each other to make surface contact for sealing. ,and,
It is highly economical. In addition, it is structurally simple and can be installed on existing roll-type curtains without major modification, and it can also be installed by the initial design of the showcase.
It can be done very easily. In addition, the gap between the end portions of both side plates of the showcase is also improved by using a fin-shaped seal film with an elastic sheet and providing a plurality of folds in the longitudinal direction to improve the familiarity and the surface with the cold insulation film surface. It facilitates sealing by contact. Moreover, it is possible to correspond to a front projecting type and a front retracting type showcase.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a partially cutaway front perspective view in which the present invention is implemented, and FIG. 2 is a sectional view thereof, which is separated from the upper front portion of each showcase 1 continuously installed in the store and is horizontal. The film for shielding the front opening 2 or the roll 3 type cold insulation film 4A, 4B made of a cold insulation sheet, which is housed in such a manner that it can be taken out by being arranged at regular linear intervals in the direction When mounted, the gap M generated between the adjacent portions of each cold insulation film
Similarly, a roll 6 in which a seal film 5 using a film or a flexible sheet such as a cold insulation sheet is wound around and is provided with an overlapping margin in the width direction is pulled out, and the seal film 5 is pulled out. , Both ends are cold insulation films 4A, 4B
The end portions of the are overlapped with each other in the vertical direction and are in surface contact with each other, which enables sealing of cold air leakage. A hard handle 7 is joined in the lower horizontal direction of the seal film 5 and is attached to the handrail portion 1A of the showcase 1 by a locking portion 7A having this cross-sectional shape or a locking member such as a hook. Can be locked.
Alternatively, it is possible to provide a stopper function in the roll 6 and stop it at a predetermined position. The same applies to the cold insulating films 4A and 4B. The cold insulation films 4A, 4B and the seal film 5
A flexible film or a cold insulation sheet having a heat insulating property can be arbitrarily used, and at the same time, the roll 6 for the seal film 5 at the upper position is attached when the seal film 5 is pulled out as shown in FIG. It is advisable that the front position X of the roll 6 diameter is equal to or slightly inward of the front position Y of the roll diameter after pulling out the cold insulating films 4A, 4B at the lower position. The sealing method for sealing the gap M by the sealing film 5 configured as described above is performed by pulling the cold insulation films 4A and 4B arranged in the upper storage portion 8 downward by pulling the drawstring 9 or the handle 7 or the like, and then sealing. By similarly pulling down the membrane 5, both ends can be brought into surface contact with each other for easy sealing. It is also possible to arrange the seal film roll 6 at a lower position and pull it out first.

FIG. 3 shows a second embodiment of the present invention, in which the cold insulation films 4A and 4B are arranged in a straight line at the same position in the horizontal direction with a predetermined interval, and the cold insulation film 4C is formed.
At the upper position between A and 4B, and the cold insulation films 4A and 4C,
4C and 4B are arranged and attached to the respective end portions with a predetermined overlap margin, and the cold insulating films 4A and 4B in the lower position are pulled down first, and then the cold insulating film 4C in the upper position is pulled down, so that the respective ends are lowered. The parts can be overlapped and brought into surface contact to seal the gap M. Also in this case, as shown in FIG.
The front position X of the roll diameter when the cold insulation film 4C is pulled out is the front position Y of the roll diameter after the cold insulation films 4A and 4B are pulled out.
It is installed at the same level as or inside. The cold insulation film 4A and the vertical arrangement of 4B and 4C can be reversed.

FIGS. 5 and 6 show a third embodiment of the present invention, which is for sealing the gap N at the side plate 1B of the showcase 1 in which the roll-type cold insulating film 4A is mounted on the front side. A sealing film 10 using a fin-shaped elastic sheet having a predetermined width is provided on the inner surface of the side plate 1B in the vertical direction.
The outer end portion 10A of 0 is fixedly joined in the vertical direction so as to be closely attached, and the cold insulation film 4A is pulled down with the inner end portion 10B of the installed seal film raised to the front. The back surface of the cold insulation film body 4A is brought into surface contact with the front end portion of the cold insulation film body 4A by the flexibility and restoring force of the sheet elasticity of the seal film 10 to enable sealing of cold air leakage from the gap N near the showcase side plate. Further, this is also provided on the opposite side plate end portion to enable sealing of cold air leakage from the gap portion. By providing a fold portion 10C in the longitudinal direction on the surface portion of the fin-shaped seal film 10, flexibility and familiarity are improved.

Therefore, in the method for sealing the adjacent gaps of the cold insulating shutter for the showcase, the existing roll type cold insulating films 4A and 4B are used as they are as described above, and the gap M is attached to the upper position. The sealing film 5 is pulled out from the roll 6 having a predetermined width and overlapped with both ends of the cold insulation films 4A, 4B, or the ends of the cold insulation film eyelets 4A, 4B, 4C are overlapped with each other to achieve sealing by surface contact. Because,
It is very easy to put on and take off, and it is economical.
In addition, the existing roll-type curtain can be installed without major modification, and furthermore, the showcase can be easily installed by the initial design. Also, the gap N between the end portions of the side plates 10B of the showcase can be sealed with a roll-type shutter by using a fin-shaped seal film 10 made of an elastic sheet.

As described above, the present invention has a cooling performance that is separately stored in the upper part of the frontage for sliding up and down to shield the front opening of the food refrigeration open syot case installed in the store as described above. The following effects can be expected by the method of sealing the adjacent gap portion of the flexible sheet roll-type cold insulation shutter or the gap portion at both end side plates. (1) It is possible to prevent cold air leakage very economically without significantly changing the conventional specifications by enabling the adjacent gaps of the roll type cool shutter to be sealed by surface contact using the roll type sealing film of the present invention. I can. (2) Therefore, it can be applied to an existing installed showcase or a newly designed showcase, and the energy saving effect can be enhanced very easily. (3) It can also be used for front projection type and vertical type, and the same backward type showcase. (4) Also, it is possible to deal with the gap at the edge of the showcase side plate.

[Brief description of drawings]

FIG. 1 is a front view showing a state in which a roll-type seal film is attached between roll-type cold-retaining films arranged so as to be accommodated in an upper part of a showcase, with a part of which is cut away.

FIG. 2 is a partial view of the side sectional configuration.

FIG. 3 is a partially cutaway front view showing a method of overlapping the end portions by a mounting arrangement of a cold insulating film to eliminate a gap and enable sealing.

FIG. 4 is a partial cross-sectional view in which the roll-type seal film and the cold insulation film, and the cold insulation film and the cold insulation film are vertically arranged.

FIG. 5 is a front partial view showing a state in which a fin-shaped seal film for sealing a gap portion on the side plate of the showcase of the present invention is mounted.

FIG. 6 is a front partial view showing a state in which a fin-shaped seal film is attached to the end and sealed.

[Explanation of symbols]

1; Multi-stage open showcase for food refrigeration
1A; handrail 1B; same side plate 2; front opening 3; cold insulation film rolls 4A, 4B; cold insulation film 4C arranged in the same row; cold insulation film 5 provided with a step on the upper side; roll-shaped sealing film 6 ; Roll part
7; Handle 7A; Locking part 8; Upper storage part
9; drawstring 10; fin-like seal film 10A; outer end portion thereof
10B; inner end portion 10C; same fold portion 11; open / close cover
12; Hinge 13; Shelf 14 Service box
15: Fluorescent lamp M; Intermediate gap portion N: End gap portion X: Seal film at the upper position, and the front position Y of the roll diameter after pulling out the cold insulation film Y: Same as the front position of the roll diameter of the cold insulation film at the lower position

Claims (3)

[Claims] 1. A multi-stage open showcase for food freezing and refrigeration (hereinafter referred to as a showcase) in which a frontage is provided in a fixed length and is continuously installed in a straight line. A sealing method for preventing cold air leakage in the intermediate adjacent gap portion that occurs when a cooling shutter (hereinafter referred to as a cold film) with a built-in spring and which can slide up and down and which can slide up and down is installed. It is possible to draw a roll of a flexible film for sealing or a cold insulation sheet (hereinafter referred to as a seal film) having a predetermined width larger than the gap above the adjacent gap where the roll for the cold insulation film is arranged. The seal film is placed on both end surfaces of the adjacent gap portion where the cold insulation film is drawn out and attached, and both end portions are partially polymerized so as to be capable of surface contact in the vertical direction, and , Locking the sealing film lower, or its own weight stoppable so, and openable and closable provided configured roll cold shutter gap sealing method of the upper winding. 2. In order to seal the gaps adjacent to each other in the middle between the roll-type cold insulating films for showcases, the cold insulating films are alternately stepped in the horizontal direction, and a predetermined overlap is made at the mutual ends in the width direction. 2. A method for sealing a gap between roll-type cold-insulating shutters according to claim 1, wherein when the cold-insulating film is pulled out and attached, both ends of the cold-insulating film are partially polymerized in the vertical direction and are capable of surface contact. . 3. A seal film made of an elastic sheet, which is provided in a fin shape with a predetermined width in a longitudinal direction of an inner surface of the side plate for sealing a gap between both end side plates of the showcase to which the roll type cold insulation film is attached. It is arranged so as to be in close contact, and is formed by fixing and joining the outer end portion in the vertical direction. The inner edge of the fin-shaped sheet is lifted to pull down the cold insulation film, and the seal is provided in the vertical direction of the end surface of the cold insulation film. The back surface of the film is superposed so as to be in surface contact with each other to enable sealing of the gap between the side plates of the showcase, and
3. The method for sealing a gap between roll-type cold-insulating shutters according to claim 1, wherein the cold-insulating film is configured to open and close vertically.