JP4536425B2 - Refrigerated showcase - Google Patents

Description

  The present invention relates to a refrigerated (including frozen) showcase that displays refrigerated or frozen foods at food departments such as supermarkets and department stores, and more particularly to a refrigerated showcase that can improve the cooling efficiency of food.

  In this type of refrigerated showcase, the height and inclination angle of the shelf provided in the refrigeration room in the case body can be adjusted according to the type of product to be displayed. At this time, by selectively inserting the locking protrusions protruding from the front and rear ends of the shelf plate into the upper and lower locking holes provided in the front plate and the rear plate of the inner box, the height and inclination of the shelf plate In general, the angle is adjusted.

  When the height of the shelf board is adjusted in this way, the cold air circulates on the rear side of the rear board of the inner box, so the upper end of the shelf board is used to attach the rear end of the shelf board. When supported, a part of the cold air flows out from the unused locking hole below the shelf board, and a short cycle of cold air is formed. If it becomes like this, the air volume (pressure) of the cool air which goes to an upper blower outlet will decrease, and the cooling efficiency of goods will fall, for example, the layer of the cool air curtain will become thin.

  In order to solve this problem, the applicant of the present application provides an opening / closing lid that automatically closes the locking hole (opening) of the inner box (inner casing) where the locking projection of the shelf is not locked. A refrigerated showcase was devised and a patent application was filed earlier (see Patent Document 1).

Japanese Patent Laid-Open No. 10-243846 (FIG. 5)

  However, in the refrigerated showcase described in the above patent document, the open / close lid that closes the locking hole is opened in a direction perpendicular to the direction in which the cool air flows in the cool air ventilation space. Has a problem that the flow resistance is increased and does not flow smoothly toward the upper outlet.

  The present invention has been made to solve the above-mentioned problems, and by closing the locking hole of the inner box so that it can be opened and closed without increasing the flow resistance of the cold air, the cooling efficiency of the product is greatly increased. The object is to provide a refrigerated showcase that can be improved.

In order to achieve the above object, the refrigerated showcase according to claim 1 of the present invention forms a refrigeration chamber whose upper surface or front surface is opened by the outer box and the inner box, and the outer box and the inner box. The cooling means and the air blowing means are provided in the air passage formed between the outer box and the inner box, and the other side end from the cold air outlet provided in the opening on the one side end upper part between the outer box and the inner box. A plurality of upper and lower members communicating with the ventilation path formed in the rear plate of the inner box while keeping the refrigerating chamber cool by a cold air curtain blown out toward a cold air inlet provided in the upper opening. In a refrigerated showcase that supports at least the rear end of the shelf plate by adjusting the vertical position by inserting and locking the locking projection of the rear end of the shelf plate into any of the stop holes,
Provided on the back surface of the rear plate is a closing member made of an elastically deformable soft synthetic resin closing plate that can continuously close the locking holes, and on the portion of the closing plate facing each locking hole. the slit facing the vertical Nagasun than the diameter of the locking hole provided, upon insertion of the locking projection of the shelf plate to one of the locking holes, one of the closing plate opposite its engaging hole The portion is elastically deformed backward toward the flow of the cold air in the ventilation path.
According to this feature, each locking hole in which the locking protrusion of the shelf plate is not inserted is always closed by the closing member, and when the locking protrusion is inserted into the locking hole, the portion facing the blocking hole is closed. Only the plate remains elastically deformed backwards in the slit forming portion while closing the other locking holes, so there is no risk of cold leaking under the shelf plate and forming a short cycle, Product cooling efficiency is improved.

In the refrigerated showcase according to claim 2 of the present invention, an outer box and an inner box form a refrigeration chamber whose upper surface or front surface is open, and a ventilation path formed between the outer box and the inner box Cooling air provided in the opening on the other side end from the cold air outlet provided in the opening on the one side end upper portion between the outer box and the inner box. A shelf is provided in any of a plurality of upper and lower locking holes communicating with the ventilation path formed in the rear plate of the inner box while keeping the refrigerator compartment cold by a cold air curtain blown out toward the suction port. In the refrigerated showcase that supports the at least the rear end of the shelf board by adjusting the vertical position by inserting and locking the locking protrusion at the rear end of the board,
On the back surface of the rear plate, a blocking member made of an elastically deformable soft synthetic resin capable of continuously closing each locking hole is provided, and in the portion facing each locking hole in the closing plate, A slit having a U-shape or an inverted U-shape when viewed from the front is provided, and when the locking projection of the shelf plate is inserted into one of the locking holes, a part of the blocking plate facing the locking hole is A refrigerated showcase that is elastically deformed backward toward the flow of cold air in the ventilation path.
According to this feature, each locking hole in which the locking projection of the shelf plate is not inserted is always closed by the closing member, and when the locking projection is inserted into the locking hole, the U-shape on the closing plate Since only the part enclosed by the shape or the inverted U-shape is elastically deformed and the other locking holes are closed, there is no risk of cold air leaking under the shelf and forming a short cycle. The cooling efficiency is improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in the vertical sectional side view of FIG. 1, the refrigerated showcase 1 of the present invention has an upper surface opened and an outer box 3 in which a heat insulating material 2 is accommodated, and the upper surface is also opened and surrounded by the outer box 3. And a cooling unit 7 and a blowing unit 8 installed in the lower part of the ventilation path 6 between the outer box 3 and the inner box 4.

  A cold air outlet 9 facing forward is provided at the upper rear end between the outer box 3 and the inner box 4, and a suction port 10 is provided at the upper front end in communication with the air passage 6 facing upward, The refrigeration chamber 11 surrounded by the inner box 4 is cooled by an air curtain of cool air flowing from the suction port 9 toward the suction port 10.

  The front plate 12 and the rear plate 13 of the inner box 4 facing each other are formed with a plurality of circular locking holes 14 in two rows on the left and right sides at predetermined intervals. The locking holes 14 are refrigerated. Locking shafts 16 and 16 projecting from both front and rear ends of the shelf plate 15 provided in the chamber 11 are selectively inserted and locked so that the height and inclination angle of the shelf plate 15 can be adjusted. ing. On the back surface of the rear plate 13, a closing member 17 that closes each locking hole 14 so as to be always openable and closable is attached.

  As shown in the rear view of FIG. 2, the closing member 17 is large enough to close the upper and lower locking holes 14 of the rear plate 13 inside the rectangular frame-shaped edge plate 18 made of hard synthetic resin. A closing plate 19 made of an elastically deformable soft synthetic resin (including an elastomer) is integrally formed, and a vertical slit 20 is provided in the center of the closing plate 18 in the vertical direction. Further, the closing plate 19 is closed with the frame-shaped edge plate 18. Horizontal slits 21 and 21 having a required length facing in the left-right direction are provided at upper and lower boundaries with the plate 19 so as to be continuous with the vertical slit 20. Note that the closing plate 19 is gradually thinned toward the vertical slit 20 to be easily bent.

  At the four corners of the frame-shaped edge plate 18, mounting holes 22 are formed for fixing to the rear plate 13 with screws or resin fasteners. The closing member 17 is fixed in close contact with the rear surface of the rear plate 13 so that the vertical slit 20 provided in the closing plate 19 is positioned at the center of each locking hole 14 of the rear plate 13.

When the rear locking shaft 16 is inserted into one of the locking holes 14 of the rear plate 13 in order to adjust the height of the shelf plate 15, the portion of the closing plate 19 facing the locking shaft 14 is as shown in FIG. 3. In addition, the longitudinal slit 20 is expanded so as to protrude rearward toward the cool air flow in the ventilation path 6 and partially elastically deformed rearward.

  At this time, the other locking holes 14 into which the locking shafts 16 are not inserted are closed by other portions of the closing plate 19 that is not elastically deformed, so that the cold air in the ventilation path 6 is transferred to the refrigerator compartment 11. There is no spillage. In particular, since a short cycle is prevented from being formed by the cold air flowing out from below the shelf board 15, there is no fear that the cooling efficiency of the product in the refrigerator compartment 11 is lowered.

In addition, since the closing plate 19 is elastically deformed toward the inside of the ventilation path 6 so as to protrude rearward toward the flow of cold air, the flow resistance of the cold air does not increase.

  Furthermore, since all the other locking holes 14 into which the locking shafts 16 are not inserted are closed, the amount of cool air flowing toward the upper air outlet 9 does not decrease, and the air curtain layer becomes thin. Thus, the cooling efficiency is not reduced. When the locking shaft 16 is pulled out, the closing plate 19 is elastically restored and the locking hole 14 is closed.

  Further, the closing member 17 has a vertical width capable of closing the plurality of locking holes 14 formed in the vertical direction, so that the locking members 17 are individually attached facing the locking holes 14. Since it is not necessary, it can be easily attached to the rear surface of the rear plate 13.

  4 to 7 show modified examples of the closing member.

  In the closing member 23 of FIG. 4, the closing plate 19 is divided into left and right at the center, and an edge plate 24 made of hard synthetic resin is integrally formed at the side ends of both divided pieces 19a and 19b. The same effect as described above can be obtained by fixing to the rear plate 13 so that the dividing lines of both the divided pieces 19a and 19b are abutted to form a slit 25 that is continuous up and down.

  Further, since the closing plate 19 of the closing member 23 is divided into left and right parts, the slit 25 forming portion is easily elastically deformed when the locking shaft 16 is inserted.

  The closing member 26 shown in FIG. 5 has the same shape as FIG. 2 described above, and is provided with a lateral slit 27 orthogonal to the vertical slit 20 between the locking holes 14 adjacent to each other in the closing plate 19.

  When such a lateral slit 27 is provided, when the locking shaft 16 is inserted into one of the locking holes 14 and the closing plate 19 of the portion facing it is elastically deformed, it faces the other locking holes 14. Since the portion of the closing plate 19 is not pulled and elastically deformed, the closing properties of the other locking holes 14 are improved. Note that such a lateral slit 27 may be provided in both the closing pieces 19a and 19b of the closing member 23 shown in FIG.

  The closing member 28 shown in FIG. 6 is provided with a slit 29 having a U-shape (or an inverted U-shape) in a portion facing each locking hole 14 in the same closing plate 19 as described above. When inserted, the portion of the closing plate 19 surrounded by the slit 29 is elastically deformed backward and rearward.

  In this way, only the portion surrounded by the slit 29 is elastically deformed without affecting the other, so that the closing property of the other locking holes 14 into which the locking shaft 16 is not inserted is improved, and the product The cooling efficiency is improved.

  The closing member 30 shown in FIG. 7 is composed of a plurality of closing plates 31 arranged in the vertical direction so that each locking hole 14 can be individually closed. Each closing plate 31 includes a closing piece 31a made of a soft synthetic resin that can be elastically deformed, and an attachment piece 31b made of a hard synthetic resin that is integrally formed at one end thereof and fixed to the rear plate 13. .

  When such a closing member 30 is used, each locking hole 14 is closed by an individual closing plate 31 that is elastically deformed independently, so that the closing performance of each locking hole 14 is further improved, Cooling efficiency is further improved.

  In the closing member 17 shown in FIG. 2, the vertical slits 20 may be provided discontinuously at portions facing the respective locking holes 14.

It is a center vertical side view of the refrigerated showcase of this invention. It is a rear view of a closure member. It is a cross-sectional top view of a locking shaft insertion part. It is a rear view which shows the 1st modification of a closure member. Similarly, it is a rear view showing the 2nd modification of a closure member. Similarly, it is a rear view showing a third modification of the closing member. Similarly, it is a rear view showing the 4th modification of a closure member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerated showcase 2 Heat insulating material 3 Outer box 4 Inner box 5 Case main body 6 Ventilation path 7 Cooling means 8 Blowing means 9 Air outlet 10 Suction port 11 Refrigeration room 12 Front plate 13 Rear plate 14 Locking hole 15 Shelf plate 16 Locking Shaft (locking protrusion)
17 closing member 18 frame-like edge plate 19 closing plate 19a, 19b divided piece 20 vertical slit 21 sideways slit 22 mounting hole 23 closing member 24 edge plate 25 slit 26 closing member 27 sideways slit 28 closing member 29 slit 30 closing member 31 closing plate 31a Closing piece 31b Mounting piece

Claims (2)

The outer box and the inner box form a refrigerating chamber whose upper surface or front surface is open, and a cooling means and a blowing means are provided in the ventilation path formed between the outer box and the inner box, The cold air curtain that is blown out from the cold air outlet provided in the opening at the upper part of one side end between the box and the inner box toward the cold air inlet provided at the opening of the upper part of the other side end The cold storage room is kept cold, and a locking protrusion at the rear end of the shelf is inserted into one of a plurality of upper and lower locking holes communicating with the ventilation path formed in the rear plate of the inner box. By stopping, in the refrigerated showcase that supports at least the rear end of the shelf so that the vertical position can be adjusted,
Provided on the back surface of the rear plate is a closing member made of an elastically deformable soft synthetic resin closing plate that can continuously close the locking holes, and on the portion of the closing plate facing each locking hole. the slit facing the vertical Nagasun than the diameter of the locking hole provided, upon insertion of the locking projection of the shelf plate to one of the locking holes, one of the closing plate opposite its engaging hole A refrigerated showcase, wherein the portion is elastically deformed backward toward the flow of cold air in the ventilation path. The outer box and the inner box form a refrigerating chamber whose upper surface or front surface is open, and a cooling means and a blowing means are provided in the ventilation path formed between the outer box and the inner box, The cold air curtain that is blown out from the cold air outlet provided in the opening at the upper part of one side end between the box and the inner box toward the cold air inlet provided at the opening of the upper part of the other side end The cold storage room is kept cold, and a locking protrusion at the rear end of the shelf is inserted into one of a plurality of upper and lower locking holes communicating with the ventilation path formed in the rear plate of the inner box. By stopping, in the refrigerated showcase that supports at least the rear end of the shelf so that the vertical position can be adjusted,
  On the back surface of the rear plate, a blocking member made of an elastically deformable soft synthetic resin capable of continuously closing each locking hole is provided, and in the portion facing each locking hole in the closing plate, A slit having a U-shape or an inverted U-shape when viewed from the front is provided, and when the locking projection of the shelf plate is inserted into one of the locking holes, a part of the blocking plate facing the locking hole is A refrigerated showcase that is elastically deformed backward toward the flow of cold air in the ventilation path.

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