JP2003302152A - Cold reserving shutter device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cold reserving shutter device for closing an open part in the front of a food display freezer/refrigerator open showcase at night etc., capable of closing the gap between cold reserving curtains of the cold reserving shutter device or between the cold reserving curtain and a side panel of the showcase securely with excellent operability by a simple means for achieving the quietness, power saving, cost reduction and prevention of dew condensation. <P>SOLUTION: A closing film 2 for covering the gap 8 is mounted in the gap 8 between cold reserving curtains 1 and 1 driven to be wound by a single roller mechanism 3 disposed above the open part. The closing film 2 is made of a material to be turned up with one end edge as the base point and is connected to a connection member 12 mounted at the side edge of the adjacent cold reserving curtain 1 when the cold reserving curtain 1 is wound out to close the gap 8. In addition, a closing film 2A, mounted at the side edge of the cold reserving curtain 1 adjacent to the side panel 14 of the showcase, is connected to a connection member 13 mounted on the side panel 14 side to close the gap 8A as well. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold insulating shutter device for keeping cold by closing an opening of a showcase such as a department store or a supermarket, and in particular, it is possible to smoothly wind and to form a gap between cold insulating curtains. TECHNICAL FIELD The present invention relates to a cool shutter device having a simple structure for mechanically sealing.

[0002]

2. Description of the Related Art A large number of relatively large showcases for displaying frozen products are arranged in department stores or supermarkets. The opening of this product is open so that food can be easily taken inside during the time when shoppers are in and out. However, it is necessary to prevent cold air in the showcase from leaking and to save power at night or on holidays when there are no shoppers, and a shutter is usually used as a means for closing the opening. FIG. 7 shows a conventionally used showcase 5 and this opening 2.
1 shows a conventional cold shutter 19 that closes 1, a slat 20, a night cover 20a, and the like. The showcase 5 has an opening 21 on one side, a display shelf 22 on which food is arranged, a wall body 23 supporting the display shelf 22, a cold air passage 24 between the wall body 23 and the outer wall of the showcase, and a cold air passage. 24
It comprises a cool air circulation fan 25 and an evaporator 31 inside, a cool air outlet 26 and a cool air inlet 27, and an internal illumination lamp 28 and the like. Cooling shutter 19 is showcase 5
The slat 20 is vertically opened and closed in the opening 21 of the show, a drive unit 29 and a case 30 for winding the slat 20, and is provided on the opening 21 of the showcase 5. The night cover 20a is made of a thin resin film. The cool air sucked into the cool air passage 24 from the cool air suction port 27 by the cool air circulation fan 25 is further cooled by the evaporator 31, and the food or the like on the display shelf 22 blown out from the cool air outlet 26 is cooled, and then circulated. Used.

[0003]

In the daytime, the slats 20 and the night cover 20a are wound up and the openings 21 are open. Therefore, the cool air in the showcase 5 mixes with the air in the store, and as a result, the cooling efficiency of the cool air in the showcase 5 decreases. Therefore, it is necessary to add extra power to keep the cool air in the showcase 5 at a predetermined cold insulation temperature, which leads to an increase in power consumption. On the other hand, the opening 21 has the slats 20 and the night cover 2 at night or on holidays.
Although it is closed by 0a, there are the following problems. Since the conventional cold shutter is made of a slat structure, the outer shape of the shutter is large and the operation noise is large. Furthermore,
Condensation occurs on the slat surface in the summer, and a lot of labor is required for water droplet treatment. In addition, a guide rail for supporting the slat 20 and closing the gap is required, and its handling is complicated, so that it is not widely used in spite of its great cooling effect.
On the other hand, the night cover 20a is inexpensive and has good operability, but has a low cooling effect. Also, the adjacent night covers 20a, 2
There is a gap between 0a and the showcase side plate 1 of FIG.
4 and the night cover 20a also have a gap, and cool air leaks to the outside to reduce the cold insulation effect. Further, there is a possibility that various foreign substances may come in and go out from this gap and harm the foods inside.
For this reason, it is required to close these gaps by a simple means, but no suitable one is found.

The present invention has been invented in view of the above-mentioned requirements, and has a simple, lightweight and inexpensive structure, is capable of power saving, is quiet, has good operability and handleability, and is less likely to cause dew condensation. It is an object of the present invention to provide a cool shutter device which has a good appearance quality and can be attached to and detached from an existing showcase as well as a new showcase.

[0005]

In order to achieve the above-mentioned object, the present invention provides a cold shutter device according to claim 1 of the present invention, which is arranged above an opening of a showcase so that the opening side can be freely moved. A shutter device for opening and closing to keep the food in a showcase cold, wherein the shutter device is provided with a cool curtain adjacent to close the opening.
A sealing film for sealing a gap between the cold insulation curtains and a gap between the cold insulation curtains and a side plate of the showcase, and a single film arranged above the opening for winding the cold insulation curtain openably and closably. Of the roller mechanism and the case for accommodating them, the sealing film is enclosed in a state in which one end of the sealing film is fixed to the accommodating concave portion provided on the side edge of the cool curtain and at the time of sealing the gap. In the above, the structure is such that it is folded back and connected to the storage recess provided on the side edge of the other party's cold insulation curtain and the connection member provided on the showcase side plate, and the connection provided on the sealing film and the other party's cold insulation curtain. The member is characterized by having a thickness structure that is housed at a level position that is substantially the same as or less than the surface of the cold insulation curtain when it is contained in the housing recess. By using the cold insulation shutter having the above-mentioned configuration, cold insulation, dew condensation prevention, weight reduction, operability and quietness can be improved, and the overall structure can be simplified, and the gap can be closed to greatly improve the cold insulation effect. Can be achieved. Further, since it has a detachable structure, it can be easily applied not only to an existing showcase but also to a new showcase.

In the cold insulation shutter device according to the second aspect of the present invention, the cold insulation curtain is provided with a guide line along the winding direction of the cold insulation curtain, and the guide is provided in the case and the lower part of the showcase of the cold insulation shutter. It is characterized in that a guide wire is provided at a position corresponding to the line. As a result, it becomes easy to prevent meandering when the cold insulation curtain is wound around the winding roller and unwound, and the cold insulation curtain can be smoothly wound.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a cold shutter device of the present invention will be described in detail below with reference to the drawings. 1 and 2
[Fig. 2] is a front view and a side sectional view showing the overall structure of the cold insulating shutter device of the present embodiment. This cold insulating shutter device is roughly classified into a plurality of cold insulating curtains 1 for closing the opening 21 of the showcase, a gap 8 between the adjacent cold insulating curtains 1, 1 and a space between the showcase side plate 14 and the cold insulating curtain 1. Sealing films 2 and 2A for sealing the gap 8A, a single roller mechanism portion 3 arranged above the opening 20 for winding the cold insulation curtain 1, and a case 4 for storing them.
And so on.

The cold insulation curtain 1 and the sealing film 2 are preferably as light and thin as possible, and the function thereof is a material excellent in cold insulation, heat insulation, dew condensation prevention, durability and operability. However, synthetic resin type, natural type fibers, cloth materials, etc. are used, but not limited thereto.

The cold shutter 19 is arranged at the upper part of the opening 21 of the showcase and is arranged at the front end of the upper surface of the showcase 5 in the present embodiment, but at the upper front end on the inner surface side of the showcase 5. It may be provided. The roller mechanism 3 includes a bracket 3A fixed to the upper surface of the showcase and a winding roller 3 pivotally supported by the bracket 3A.
B, and driving means (not shown) for rotationally driving it. In addition, the handrail 6 below the opening of the showcase 5
Has locking means 7 (FIG. 2) for locking the lower end of the cold insulation curtain when it is closed.

FIGS. 3 to 6 show the cold insulation of the portion where the sealing films 2 and 2A for closing the space 8 between the cold insulation curtains 1 and 1 and the space 8A between the cold insulation curtain 1 and the showcase side plate 14 are arranged. Structure of curtain 1, sealing films 2 and 2A, connecting member 1
It is a figure which shows the arrangement structure of 1,12,13, and FIG.3, FIG.4, FIG.5 is a figure in the position of the AA line cross section of FIG. 1, FIG. 6 is the BB line cross section of FIG. It is a figure in the position of.

FIG. 3 shows a detailed structure of a portion for accommodating the sealing film 2 and the connecting member 11 between the adjacent cold insulation curtains 1, 1. A recess 9 for accommodating the sealing film 2 having a required width is provided on the left side edge of the right cold insulation curtain 1, and a recess 10 for accommodating the connecting member 12 is provided on the right side edge of the left cold insulation curtain.

FIG. 4 shows a detailed view of housing the sealing film 2 and the connecting members 11 and 12 in the cold insulation curtain 1. Right side curtain 1
Although the sealing film is stored in the storage recess 9 of FIG. 11, only the left end portion thereof is fixed to the fixing portion F provided on the left edge of the cold insulation curtain. Further, the connecting member 12 is fixed to the fixing portion F in the storage concave portion 10 of the left cold insulation curtain 1. Adhering, fusing, suturing, or the like is adopted as the fixing method, but is not limited to this. A connection member 11 corresponding to the connection member 12 is provided on the front surface or the front and back surfaces of the sealing film 2 so as to be easily attached and detached, and as shown in FIG. Temporary fixing members 15 and 15A are provided to temporarily fix 15, 15A before winding the cold insulation curtain so that the sealing film can be easily wound. Further, as the connecting members 11 and 12, for example, known commercially available hook-and-loop fasteners are used. The hook and loop fasteners are widely used in various fields such as industry and daily life, and there are many kinds of fasteners, which are available at low cost. Also, the connection workability is good, the attachment / detachment is easy, and the connection strength is high. Further, in FIG. 4, the sealing film 2 has the cold insulation curtain 1
2 shows a state in which the storage member 9 is housed in the housing recess 9 and the connecting member 12 is housed in the housing recess 10. The sealing film 2 and the connecting member 12 are respectively provided with storage recesses 9 and 10 for storage.
The surface of the cold storage curtain 1 in the state of being housed therein has a structure (thickness) that is substantially level with or lower than the surface of the cold insulation curtain 1. Therefore, even if the sealing film 2 and the connecting member 12 are provided on the side edge of the cold insulation curtain 1, the cold insulation curtain 1
Is smoothly wound around the winding roller 3B.

FIG. 5 is a diagram showing a method of sealing the gap 8 formed between the cold insulation curtains 1 and 1 with the sealing film 2 having the above structure. First, the right end of the sealing film 2 is provided with the storage recess 9
Pull out from the back and fold back to the left to keep the left side cold curtain 1
The connecting member 12 is pressed. Thereby, as shown in FIG. 5, the sealing film 2 is connected to the cold insulation curtain 1 on the other side. As a result, the gap 8 is sealed. FIG. 1 is a front view showing a sealing state of the gap 8 with the sealing film 2. On the other hand, when returning the sealing film 2 to the original state, the connecting member 11 of the sealing film 2 is used.
The connection between the connection means 12 and the connection means 12 is released. As a result, the restoring force generated in the sealing film 2 causes the sealing film 2 to return to the storage recess 9 of the cold insulation curtain 1 on one side, and is stored in the storage recess 9 where the temporary fixing members 15, 15A are provided. Thus, the cold storage curtain 1 is stably stored.

In FIG. 6, the gap 8A between the side edge of the left cold insulation curtain 1 and the left showcase side plate 14 is sealed with a sealing film 2A.
It is a figure which shows the method of sealing by. The showcase side plate 14 has a connecting member 1 having the same or similar structure as the connecting member 12 and the like.
3 is provided. By pressing the connecting member 11 of the sealing film 2A against the connecting member 13, the side edge of the cold insulation curtain 1 is connected to the showcase side plate 14 side, and the gap 8A is almost completely sealed by the sealing film 2A. By pulling the connecting member 11 of the sealing film 2A away from the connecting member 13, the sealing film 2A is easily returned to its original position by the restoring force and is housed in the housing recess 9. As shown in FIG. 1, the sealing method for the showcase side plate on the right side is symmetrical with the sealing method for the showcase side plate on the left side.

On the other hand, in the cold insulation shutter device of FIGS. 1 and 2, the cold insulation curtain 1 is wound around the winding roller 3B, but in order to smoothly wind the hanging cold insulation curtain 1 around the winding roller 3B. For example, the following means are adopted. As shown in FIG. 1, a guide line 16 is drawn vertically in the width center of the cold insulation curtain 1, and a guide line 17 is drawn on the case 4 directly above the guide line 16 and the handrail 6 below. A weight bar (not shown) on the entire width of the lower edge of the cold insulation curtain 1.
Is attached, and the pull ball 18 is provided in the center thereof. The weight bar is attached to hang and spread the cold insulation curtain to maintain the flatness, and the pull ball 18 is provided to facilitate the operation (unwinding and rolling in) of the cold insulation curtain. In the above structure, the cold insulation curtain is operated as follows. First, the pull ball 18 hanging in the center of the cold insulation curtain 1 wound around the winding roller 3B.
Is pulled down, the lower end of the guide wire 16 of the cold insulation curtain is aligned with the guide wire 17 drawn on the handrail 6 below the opening, and the guide wire 16 is locked by the locking means 7. The locking method is arbitrarily selected such as a hook or magnetic sticking. Next, when the cold insulation curtain is wound around the winding roller, the lower end of the cold insulation shutter is disengaged from the locking means 7, and the pull ball 18 is used to align the guide wire 16 of the cold insulation curtain with the guide wire 17 of the case 4 to cool the cold insulation curtain 1. Is wound around the winding roller 3B. By the above operation, the operation of closing and releasing the opening of the showcase with the cold insulation curtain can be performed reliably and easily.

As described above, by using the cold shutter device of the present invention, the gap 8 between the cold curtains 1 and 1 and the gap 8A between the cold curtain 1 and the showcase side plate 14 are formed.
Is sealed, the cold air leakage in the showcase 5 is effectively prevented, and the effect of power saving can be improved. By the above, all the objects of the present invention are achieved.

[0017]

According to the present invention, the gap between the cold insulation curtains and the gap between the cold insulation curtains and the showcase side plate can be effectively sealed by means of relatively simple and low cost, and the effect of power saving is improved. To be Also, the operability of gap sealing is good,
It has automatic returnability and is easy to handle. It is small and lightweight, has good operability, is quiet, and has a significantly improved usability. Moreover, the structure is simple, compact, inexpensive, and lightweight. Further, workability can be improved and cost can be significantly reduced without using columns as in the conventional slat structure.
Further, the sealing is surely performed, and the cold insulation effect can be improved.
Further, it is applicable not only to existing showcases but also to new showcases.

[Brief description of drawings]

FIG. 1 is a front view of a cold insulating shutter device of the present invention.

FIG. 2 is a side sectional view of FIG.

FIG. 3 is a schematic partial cross-sectional view showing the structure of a storage recess that contains a sealing film.

FIG. 4 is a schematic partial cross-sectional view showing a storage state of a cooling film of a sealing film in a storage recess.

FIG. 5 is a schematic partial cross-sectional view for explaining a method of sealing between adjacent cold insulation curtains having a gap by a sealing film.

FIG. 6 is a schematic partial cross-sectional view showing a state in which the gap between the cold insulation curtain and the side plate of the freezer-refrigerating open showcase for food display is sealed with a sealing film.

FIG. 7 is a cross-sectional view showing a schematic structure of a conventional frozen / refrigerated open showcase for food display to which the present invention is applied.

[Explanation of symbols]

1 Cooling curtain 2 Sealing film 2A sealing film 3 Roller mechanism 3A bracket 3B winding roller 4 cases 5 Freezer / Refrigerator Open Showcase for Food Display 6 handrails 7 Locking means 8 gap 8A gap 9 Storage recess 10 Storage recess 11 Connection member 12 Connection member 13 Connection member 14 Freezer / Refrigerator Open Showcase Side Plate for Food Display 15 Temporary fixing member 15A temporary fixing member 16 guide lines 17 guide wire 18 pull balls 19 Cooling shutter 20 slats 20a night cover 21 opening F fixed part 22 display shelves 23 wall 24 Cold air passage 25 Cool air circulation fan 26 Cold air outlet 27 Cold air intake 28 Lighting lamp 29 Drive 30 cases 31 Evaporator

[Procedure amendment]

[Submission date] November 1, 2002 (2002.11.
1)

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

Claims (2)

[Claims] 1. A freezing / refrigerating open showcase for food display (hereinafter abbreviated as a showcase) is arranged above the opening, and the opening is freely opened and closed to keep the food in the showcase cold. A shutter device, wherein the shutter device seals a gap between the cold insulation curtains arranged adjacent to each other to close the opening, and between the cold insulation curtains and the side plate of the showcase. A sealing film for preventing the cold insulation curtain, a single roller mechanism arranged at the upper part of the opening for winding the cold insulation curtain and a case accommodating them, and the sealing film has one end. Part is enclosed in a storage recess provided on the side edge of the cold insulation curtain, and is enclosed in the storage recess provided on the side edge of the mating cold insulation curtain and the showcase side plate when sealing the gap. Provided The structure is such that it is folded back and connected to the connecting member, and the connecting member provided on the sealing film and the cold insulation curtain on the other side is almost at the same level as the surface of the cold curtain or less when enclosed in the storage recess. A cold-shutter device, characterized in that it is made of a thick structure to be stored at a position. 2. The cold insulation curtain is provided with a guide line along the winding direction of the cold insulation curtain, and a guide wire is provided at a position matching the guide line in the case of the cold insulation shutter and the lower part of the showcase. The cool shutter apparatus according to claim 1, wherein the cool shutter apparatus is a cool shutter apparatus.