JP4129545B2 - Cooling shutter device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cold shutter device that seals a front opening and a gap of a showcase such as a department store or a food supermarket at the time of closing a store where work is not performed at night or on holidays. The present invention relates to a cold-insulating shutter device that is reliably and easily stopped and has a good appearance.
[0002]
[Prior art]
In department stores, food supermarkets, etc., relatively large showcases for displaying frozen products are arranged, and in many cases, a plurality of these showcases are arranged adjacent to each other. In addition, showcase side plates are arranged at both ends of the showcase to hold both sides of the showcase. This showcase has an opening on the front surface thereof. When the store is opened, the opening is in an open state so that frozen products can be freely put in and out. On the other hand, it is necessary to save power by preventing the cool air in the showcase from leaking when the store is closed (at night or on holidays). For this reason, a cold shutter device for closing this opening is also used in the prior art. As a conventional cold insulation shutter device, a thin curtain night curtain made of synthetic resin or a slat type cold insulation shutter device is used.
[0003]
[Problems to be solved by the invention]
Night curtains, which are mainly used to close the opening of refrigerated showcases, are inexpensive but have poor thermal insulation performance, and there are many gaps between the night curtains and especially in the lower part. There is a bad problem. Japanese Patent Laid-Open No. 9-96486 is a known technique for closing gaps between night covers (night curtains), and this is a structure that pulls out a short night cover that closes the gaps from above, and that closes the opening. The night cover and the short night cover are characterized by a structure in which the position of the drawer hook of the short night cover is adjusted so that the night cover can be brought close to each other when the short night cover is pulled out. However, even in this structure, the sealing performance of the gap is not perfect, and there is a problem that the sealing performance of the lower gap is not sufficient structurally. There is also a problem that the gap between the night cover and the showcase side plate is not sealed. Another known technique is Japanese Utility Model Publication No. 58-93777, which prevents a gap from being generated between the cooling curtains (opening and closing sheets) by slightly overlapping the edges of the cooling shutter. The shafts of adjacent cool shutters are shifted up and down, and both shaft ends are held in the upper and lower integrated bearings. Due to the structure described above, leakage of cold air between the cold insulation curtains is unavoidable, and the gap between the cold insulation curtain and the showcase side plate is not sealed. In addition, the bearing portion is about twice as large as the normal size, requiring a large installation space and deteriorating the appearance of the upper part of the showcase. On the other hand, the slat type cold insulation shutter device has high heat insulation performance and the gap between the cold insulation shutters and the gap between the cold insulation shutter and the showcase side plate is also closed. There is a problem that becomes expensive. Also, failure is likely to occur and the maintainability is poor.
[0004]
The present invention has been invented to solve the above problems, and is compact, lightweight, inexpensive, easy to operate, easy to handle, quiet, and has a good appearance. It is an object of the present invention to provide a cold shutter device capable of greatly improving the stopping performance.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, the cold insulation shutter device according to claim 1 is disposed above an opening on the front surface of a frozen display case for food display (hereinafter abbreviated as a showcase). Sealing the gap between the cold insulation shutter part provided with the roller mechanism part and the cold insulation curtain that is unwound and wound to open and close the opening, and between the adjacent cold curtains and between the cold insulation curtain and the showcase side plate. A cold insulation shutter device having a gap sealing means, wherein the gap sealing means covers the gap and is detachably connected via a connecting member fixed to a side edge of the cold curtain or the showcase side plate. And a winding roller disposed under the showcase in the gap and for winding and winding the sealing film. . A feature of the present invention is that a sealing film separated from the cold insulation curtain is used, and a winding roller for unwinding and winding the sealing film is disposed at the lower part of the showcase. As a result, various mechanisms are arranged in the upper part of the opening, but there is nothing in the lower part, and it is free from the trouble of securing the arrangement space, and it is possible to arrange with a high degree of freedom and greatly maintainability. Can be improved. As a result, the design and manufacture of the cold insulation curtain and the sealing film can be facilitated. The sealing film is unwound from a lower winding roller when necessary, and is connected to a cold insulation curtain or a showcase side plate via a connecting member, and the connection is also performed by manual pressing, which is extremely simple and reliable. Can be connected. That is, since the sealing film is overlapped and adhered to the cold curtain, leakage from the gap is completely prevented and the sealing performance can be greatly improved. In particular, since the sealing film is pulled up from the lower part to a predetermined height and is connected to the cold insulation curtain, the lower side seal that is likely to cause cold air leakage is more completely performed, and the leakage from this part is greatly improved. The Moreover, since the sealing film is overlapped and adhered to the cold insulation curtain, the appearance is good. Moreover, the whole can be put together compactly.
[0006]
The sealing film in the cold insulation shutter device according to claim 2 of the present invention is unwound from a winding roller arranged at the lower part of the showcase when the gap between the cold insulation curtains is sealed, and is applied to the side edge surface of the cold insulation curtain. They are connected via an overlapping connecting member. Since the sealing film is connected to the surface of the side edge of the cold curtain via the overlapping connecting member, the sealing property and the mounting property can be improved and the appearance can be improved.
[0007]
Further, the sealing film in the cold insulation shutter device according to claim 3 of the present invention winds from the winding roller disposed at the lower part of the showcase when sealing the gap between the side edge of the cold insulation curtain and the showcase side plate. It is taken out and it is connected to the side edge surface of a cold-insulating curtain and a showcase side plate through a lap connecting member. Since the sealing film in this case is also connected to the side edge surface of the cold curtain and the showcase side plate through the overlapping connecting member in the same manner as the sealing film in claim 2, the sealing property and the mounting property are improved. It is possible to improve the appearance beauty.
According to a fourth aspect of the present invention, there is provided the cold insulation shutter device, wherein the surface position of the connecting member fixed to the side edge surface of the cold insulation curtain is set to the same level or lower than the surface position of other portions of the cold insulation curtain. . By setting the surface position of the connecting member to the same level or lower than the surface position of the other part of the cool curtain, even if the connecting member is fixed to the cool curtain, the surface is flush, It is smoothly wound around the winding roller of the roller mechanism.
[0008]
As described above, according to the structure of the sealing film of the present invention, the sealing of the gap at the lower part of the showcase is performed more reliably than in the conventional case, especially for the showcase that tends to cause much cold air leakage at the lower part. This structure is extremely effective. Further, as described above, since the winding roller is arranged at the lower part of the opening, the gap sealing means can be freely provided in a space free of obstacles, avoiding a place where the cold shutter part, the lighting device, etc. are crowded. It is possible to arrange them, so that attachment and maintenance are improved, design freedom is improved, and the overall structure can be made compact. In addition, significant power saving can be achieved by improving the sealing performance of the gap.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the cold insulation shutter device of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a front view showing the entire structure of the cold shutter device of the present embodiment, and FIG. 2 is a partial side view thereof. In the present embodiment, the case where two showcases 5 and 5 are arranged has been described. However, the present invention is not limited to this. The cold insulation shutter device of the present invention is roughly divided into a cold insulation shutter part and a gap sealing means. First, the cold insulation shutter part will be described.
[0010]
As shown in FIGS. 1 and 2, the cold insulation shutter portion 4 includes a roller mechanism portion 7 disposed in front of the upper portion of the opening on the front surface of the showcase 5, and the cold insulation curtain 3 that is unwound and wound by the roller mechanism portion 7. . In order to improve the cold insulation, the cold curtain 3 is composed of, for example, a metal film, an intermediate heat insulating air layer, a synthetic resin film or a cloth layer having a small heat capacity, and the metal film is directed inward of the showcase 5. It consists of what is arranged. Thereby, the improvement of dew condensation prevention, the cold insulation, and the heat insulation are aimed at. Of course, the structure of the cool curtain 3 is not limited to that described above, and natural fibers, cloth materials, and the like are also used.
[0011]
As shown in FIG. 2, the roller mechanism portion 7 includes a bracket 6 fixed to the front of the upper portion of the opening on the front surface of the showcase 5, a winding roller 8 pivotally supported by the bracket 6, and the winding roller 8. It comprises a driving means (not shown) that rotates and a case 9 that covers the winding roller 8. Although the cold insulation curtain 3 is wound by the winding roller 8 and moves up and down, when the opening 16 is closed by the cold insulation curtain 3, the cold insulation curtain 3 is engaged with the locking means 10 as shown in FIG. Retained.
[0012]
As shown in FIG. 1, a guide line 11 is provided along the vertical direction at the center position of the cold insulation curtain 3. Guide lines 13 and 14 that coincide with the guide line 11 are provided on the surface of the handrail portion 12. A pull pole 15 for operating the cool curtain 3 is provided at a position along the guide line 11 below the cool curtain 3. Using this pull pole 15, the cold insulation curtain 3 is unwound from the winding roller 8 and descends, and is engaged with and held by the locking means 10 as described above while aligning the guide wire 11 with the lower guide wire 14. The Further, when opening, smooth winding is performed by driving the winding roller 8 while winding the guide wire 11 to the upper guide wire 13 and winding it around the cool curtain 3.
[0013]
Next, the gap sealing means will be described. A slight gap 17 is inevitably generated between the side edges of the cool curtain 3. Further, a gap 19 is also formed between the other side edge of the cool curtain 3 and the showcase side plate 18. Therefore, even if the opening is closed only by the cool curtain 3, the cool of the showcase 5 cannot be completed. Therefore, the gap sealing means is applied.
[0014]
The gap sealing means includes the sealing films 1 and 1a and a winding roller 25 for unwinding and winding the sealing films 1 and 1a. In the case of the present embodiment, the sealing film 1 for closing the gap 17 between the side edges of the cold insulation curtains 3 and 3 shown in FIG. A sealing film 1a for closing the gap 19 is employed.
[0015]
The sealing film 1 is formed of a narrow flat plate-like member different from the cold-insulating curtain 3, and a connecting member 20 is provided on the inner surface side thereof as shown in FIG. At the time of sealing, the sealing film 1 is connected to connecting members 22 and 22 fixed to the side edges 21 and 21 of the adjacent cool curtains 3 and 3, as shown in FIG. The surface positions of the connecting members 22 and 22 are at the same level as the surface position of the cool curtain 3. For this reason, even if the connecting members 22 and 22 are fixed to the cold insulation curtains 3 and 3, the surfaces are flush and the cold insulation curtains 3 and 3 can be smoothly wound around the winding roller 8 of the roller mechanism portion 7. . As this connection member 20 and 22, a well-known commercially available surface fastener is used, for example. Hook fasteners are widely used in the fields of industry and daily life, and there are many types and they are available at a relatively low cost.
[0016]
As shown in FIGS. 1 and 2, the gap sealing means 2 includes a bracket 24 fixed to a position 23 below the opening 16 of the showcase 5, a winding roller 25 pivotally supported by the bracket 24, Drive means (not shown in the figure) for driving and a case 26 for storing and protecting the winding roller 25 and the like. When not in use, the sealing film 1 is wound around the winding roller 25, but is pulled out from the winding roller 25 when necessary and pulled up to the upper position as it is. The sealing films 1 are superposed on the connecting members 22 and 22, and the sealing film 1 is manually pressed against the cold curtains 3 and 3, and is connected by the connecting members 20 and 22. The mounting operation of the sealing film 1 is performed by the above simple operation. Note that the sealing film 1 can be removed by simply activating the winding roller 25 after releasing the connection between the sealing film and the cool curtains 3 and 3, thereby being easily wound and stored. As described above, the sealing film 1 is overlapped with the cold insulation curtain 3 and connected to the cold insulation curtain 3 in a flat state. In particular, since the gap is sealed by pulling up the sealing film 1 from below, the gap below the showcase 5 is completely closed, and the leakage of cold air is completely prevented, and the sealing shape is always kept good. The appearance can be improved.
[0017]
FIG. 4 shows a sealing form by the sealing film 1a. Also in this case, the sealing film 1 a is disposed flat along the surface of the cold curtain 3 like the sealing film 1. For this purpose, it is necessary to provide an L-shaped bracket 27 on the showcase side plate 18 side as shown. That is, the L-shaped bracket 27 is fixed to the side surface of the showcase side plate 18, and the connecting member 28 is fixed to the front surface of the bracket 27. The position of the surface of the connecting member 28 is set to the same level position as the connecting member 22 fixed to the side edge 21 of the cool curtain 3. As a result, the connecting member 20 of the sealing film 1a overlaps the connecting member 22 of the side edge 21 of the cooling curtain 3 and the connecting member 28 of the L-shaped bracket 27, and the sealing film 1a is pressed by hand to show the cold insulating curtain 3 and the show. The sealing film 1a is connected to the case side plate 18, and the gap 19 is sealed with the flat sealing film 1a. In addition, this sealing film 1a is also pulled up and connected from the lower side like the sealing film 1 described above, and has a good appearance and connectivity because it is overlapped in the same flat state as described above. The sealing performance can be improved well.
[0018]
FIG. 5 shows another embodiment of the sealing film 1a for sealing the gap 19 between the cold-insulating curtain 3 and the showcase side plate 18. The structure of the sealing film 1a itself is the same as that of the sealing film 1a shown in FIG. 4, but the mounting method is different. In the case of this embodiment, the L-shaped bracket 27 as described above is not provided on the showcase side plate 18 side. Therefore, the sealing film 1 a is directly connected to the showcase side plate 18. That is, as shown in the drawing, the sealing film 1a is connected to the showcase side plate 18 side in a bent state. Specifically, the sealing film 1 a is connected to the connecting member 29 fixed to the inner surface side of the showcase side plate 18. Even in this case, the gap 19 between the cool curtain 3 and the showcase side plate 18 is completely sealed.
[0019]
As described above, in the present invention, the sealing film 1, 1a is pulled up from the winding roller 25 of the gap sealing means 2 disposed at the position 23 below the opening 16 in FIG. It is characterized in that the connecting member 22 is pressed against the connecting members 22, 28, 29 of the case side plate 18 by hand to ensure the connection, and the gaps 17, 19 are completely sealed. Done. This is higher in sealing performance than the conventional one in which the sealing film is pulled down from the upper side to close the gap, and in particular, the lower sealing can be ensured and the sealing can be completed completely. Moreover, there is no obstacle at the part where the gap sealing means 2 is arranged, so that the arrangement can be freely performed, and the attachment and operability can be improved.
[0020]
In the above description, the locking means 10 is employed as the locking at the time of sealing the cool curtain 3, but the present invention is not limited to this, and a locking means using magnetic force is naturally employed. Further, in order to pull up the sealing films 1 and 1a, it is preferable to provide a lifting lock (not shown) on the upper end side.
[0021]
【The invention's effect】
According to the present invention, all the problems of the prior art are solved, light weight, improved operability (operational lightness, simple operation), no noise, no guide rail, improved external appearance, improved maintainability, improved clearance sealing ( (Coolability is improved) and the price can be reduced, and the synergistic effect of these can significantly improve the capital investment efficiency.
[Brief description of the drawings]
FIG. 1 is a front view showing an overall structure of a cold shutter device according to the present invention.
FIG. 2 is a partial side view of FIG.
FIG. 3 is a schematic partial cross-sectional view showing a state in which a gap between adjacent cool curtains is sealed with a sealing film.
FIG. 4 is a schematic partial cross-sectional view showing a state in which a gap between a side edge of a cool curtain and a showcase side plate is sealed with a sealing film.
FIG. 5 is a schematic partial cross-sectional view showing a state in which a gap between a side edge of a cold insulation board and a showcase side plate is sealed with a sealing film.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sealing film 1a Sealing film 2 Gap sealing means 3 Cooling curtain 4 Cooling shutter part 5 Showcase (Frozen refrigeration means showcase for food display)
6 Bracket 7 Roller mechanism portion 8 Winding roller 9 Case 10 Locking means 11 Guide wire 12 Handrail portion 13 Guide wire 14 Guide wire 15 Pull pole 16 Opening portion 17 Clearance 18 Showcase side plate 19 Clearance 20 Connection member 21 Side edge 22 Connection Member 23 Lower position 24 Bracket 25 Winding roller 26 Case 27 L-shaped bracket 28 Connecting member 29 Connecting member

Claims (4)

  There is provided a roller mechanism portion disposed at an upper portion of a front opening portion of a freezer / refrigerated multi-stage showcase (hereinafter abbreviated as a showcase) for food display, and a cold insulation curtain that is unwound and wound to open and close the opening portion. A cold insulation shutter device comprising: a cold insulation shutter portion; and a gap sealing means for sealing a gap between adjacent cold insulation curtains and between the cold insulation curtain and a showcase side plate, wherein the gap sealing means includes the gap sealing means, A sealing film that covers the gap and is detachably connected via a connecting member fixed to a side edge of the cool curtain or the side plate of the showcase; and a sealing film disposed below the showcase in the gap, A cold insulation shutter device comprising: a winding roller for unwinding and winding the roller.   The sealing film that seals the gap between the cold insulation curtains is unwound from the winding roller disposed at the lower part of the showcase when the gap is sealed, and overlapped on the side edge surface of the cold insulation curtain. The cold insulation shutter device according to claim 1, wherein the cold insulation shutter device is connected via a heat sink.   The sealing film that seals the gap between the side edge of the cold insulation curtain and the side plate of the showcase is unwound from the winding roller disposed under the showcase when the gap is sealed, and the cold insulation curtain The cold insulation shutter device according to claim 1, wherein the cooler shutter device is connected to the side edge surface and the showcase side plate via an overlapping connecting member. The surface position of the connecting member fixed to the side edge surface of the cold insulation curtain is set to the same level as or lower than the surface position of the other part of the cold insulation curtain. Cooling shutter device.

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