JP2003235692A - Walk-in open showcase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a walk-in open showcase capable of reducing a required refrigerating capacity by adopting a double air curtain structure. <P>SOLUTION: This walk-in open showcase is provided with an article display part 1 having its front surface opened toward a stored inside, a backyard 2 storing replenished articles, etc., in the rear part of the article display part 1, an inner air flow device 3 forming an air curtain in a front surface opening 12 of the article display part, and a cleaning unit 31 for the inner air flow device 3 disposed between a ceiling part 14 of the article display part 1 and a ceiling part 22 of the backyard 2. This showcase has a structure having an outer air flow device 4 forming another air curtain outside the air curtain through a clearance between the cleaning unit 31 and the ceiling part 22 of the backyard 2. This constitution forms double air curtains in the front surface opening 12. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a walk-in open showcase having a backyard used as a product storage room behind a product display unit. 2. Description of the Related Art FIG. 4 shows a conventional walk-in open showcase of this type. [0003] This showcase comprises a merchandise display section 1 having a front opening toward the inside of a store, and a back yard 2 for storing replenished commodities A behind the merchandise display section 1. When purchasing the above product A, the user puts his hand into the front opening 12 from the inside of the store and purchases the product A. On the other hand, when refilling the merchandise A to the merchandise shelf 11, the merchandise A is taken out from the storage shelf 21 in the backyard 2, and the rear door 13 of the merchandise display unit 1 is opened to replenish the merchandise A on the merchandise shelf 11. With such a showcase structure, first-in first-out of the product A is realized, and the product can be easily replenished from the backyard 2. [0004] In this showcase, a cool air duct device 3 having a cooling unit 31 is installed so that the product A in the product display portion 1 and the backyard 2 is cooled. This cooling unit 31 is a product display unit 1
Is arranged in an installation space 23 between the ceiling portion 14 of the back yard 2 and the ceiling portion 22 of the back yard 2, and is suspended from the ceiling portion 22 of the back yard 2 by hanging metal fittings 33. When keeping the product A cool, the air in the back yard 2 is passed through the cooling unit 31 and the cool air generated here is blown through the blowing duct 32 as shown by the solid arrow in FIG.
To form an air curtain to keep the product display portion 1 cool, and to return the cold air to the backyard 2 to pre-cool the stored product A. [0005] In the conventional showcase, the front opening 12 of the merchandise display portion 1 is formed from the ceiling portion 14 to the floor side of the back yard 2, and an air curtain is provided. The top and bottom dimensions are very long. In addition, the length of the air curtain is set longer so that the wind speed of the cool air is increased by the length. [0006] However, the higher the wind speed of the air curtain, the more air can be prevented from entering the store from the store and the leakage of cool air from the store 1 to the store can be prevented. Due to the high speed, the cold air caught in the upper part of the product display unit 1 is reduced, and the upper display product A has a problem that the cooling is loose, and the required refrigeration capacity of the refrigerator is large. The cooling efficiency of part 1 was low. In order to solve such a problem, it is conceivable to adopt a double air curtain structure employed in a general open showcase. In order to adopt this double air curtain structure, it is necessary to install another cold air path device separately from the cooling unit 31 in the installation space 23. However, as shown in FIG. The space has already been used as a space, and practically no other air path device can be installed. In view of the above-mentioned problems, the object of the present invention is to reduce the required refrigeration capacity by using a double air curtain structure, and to provide a new ventilation space above the ceiling of the product display unit. An object of the present invention is to provide a walk-in open showcase in which an outer air path device can be provided without preparation. [0009] In order to solve the above-mentioned problems, the present invention solves the above-mentioned problems. In order to solve the above-mentioned problems, a product display portion having a front opening toward the inside of a store and a bag for storing supplementary products and the like are stored behind the product display portion. A yard and a cool air path device that forms an air curtain at a front opening of the commodity display section, and a cooling unit of the cool air path apparatus is disposed between a ceiling section of the commodity display section and a ceiling section of the back yard. The walk-in open showcase has an outer air path device that forms another air curtain outside the air curtain through a gap between the cooling unit and the ceiling of the back yard. According to the present invention, the air in the back yard is blown out to the front opening through the gap between the cooling unit and the ceiling of the back yard by driving the outer air passage device, thereby forming an air curtain. Since this air curtain is formed outside the cool air curtain that has passed through the cooling unit, a double air curtain is formed at the front opening. 1 to 3 show an embodiment of a walk-in open showcase according to the present invention. FIG. 1 is a side sectional view of the walk-in open showcase, and FIG. FIG. 3 is a plan view showing the outer air path device, and FIG. 3 is an assembled perspective view showing the hanging fitting. The same components as those of the conventional walk-in open showcase shown in FIG. 4 are denoted by the same reference numerals. The walk-in open showcase is formed integrally with a product display 1 for displaying the product A and a back yard 2 for storing the product A to be replenished in the product display 1. The front opening 12 opens toward the inside of the store, while the back of the product display unit 1 communicates with the inside of the back yard 2. The commodity display section 1 has commodity shelves 11 arranged in a plurality of stages, so that the commodity A on the commodity shelves 11 can be taken out of the store through the front opening 12.
On the other hand, a back door 13 is installed on the back of the product display unit 1, and when refilling the product A onto the product shelf 11, the product A or the product display unit 1 on the storage shelf 21 in the backyard 2 is provided. The product A placed on the ceiling 14 is taken out, the rear door 13 is opened, and the product A is refilled on the product shelf 11. As a device for keeping the product display unit 1 and the backyard 2 configured as described above cool, a cold air path device (hereinafter, referred to as a cold air channel device).
(Referred to as an inner air passage device) 3 and an outer air passage device 4. The inner air passage device 3 has a cooling unit 31 installed in an installation space 23 formed between the ceiling portion 14 of the product display portion 1 and the ceiling portion 22 of the back yard 2. The cooling unit 31 has a cooler 311 and an inner air circulation fan 312. The air in the backyard 2 flows to the cooler 311 by the inner air circulation fan 312, and the air cooled by the cooler 311 becomes cool air. And is blown out to the inner blowing duct 32. The cooling unit 31 is provided with a cooler 31.
1 and the upper part of the inner air circulation fan 312 are covered with a unit cover 313.
The ceiling part 2 of the backyard 2 is connected to the hanging bracket 33 through the ceiling 3.
It is fixed at 2. The structure of the hanging bracket 33 will be described mainly with reference to FIGS. The hanging bracket 33 includes a ceiling fixing bracket 331 arranged at an interval outwardly from the front and rear ends of the unit cover 313, and a unit fixing bracket arranged at a distance from each other so as to bridge the ceiling fixing bracket 331. 332. Each ceiling fixing bracket 331 is bent stepwise up and down, and is fixed to the ceiling part 22 of the backyard 2 by screws 331c through a plurality of screw holes 331b formed in the upper plate 331a. On the other hand, the unit fixing bracket 332 is disposed between the unit cover 313 and the ceiling 22, and both ends thereof are fixed to the lower plate 331 d of each ceiling fixing bracket 331 by screws 332 a as shown in FIG. The space is fixed by screws to the cooling unit 31 via the unit cover 313 (screw 332).
b) has been done. Thereby, the cooling unit 31
Are suspended and fixed to the ceiling portion 22 of the back yard 2. On the other hand, the outer air passage device 4 has an outer air circulation fan 41 disposed in front of the cooling unit 31 as shown in FIG. The suction side of the outer air circulation fan 41 faces the inside of the backyard 2 and sucks the air in the backyard 2. Further, the outer air passage device 4 converts the air sucked into the outer air circulation fan 41 into the outer blow duct 4.
2 has a series of ventilation structures. This ventilation structure is formed by the hanging bracket 33 and the unit cover 313, and the structure will be described with reference to FIGS. That is, since the unit fixing bracket 322 of the hanging bracket 33 is formed in a substantially U-shaped cross section,
A gap (outer ventilation passage 431) is formed between the ceiling 22 and the unit cover 313 by the height of the unit fixing bracket 322. Further, front and rear ceiling fixing brackets 331 are arranged outward from front and rear ends of the unit cover 313. For this reason, a gap is formed between the ceiling fixing bracket 331 on the rear side and the rear end of the unit cover 313, and this gap is formed as the outer ventilation path 431.
The air inlet 432 communicates with the outlet side of the outer air circulation fan 41. In addition, a gap is formed between the front ceiling fixing bracket 331 and the front end of the unit cover 313, and the gap serves as a ventilation outlet 433 that connects the outer blow duct 42 and the outer ventilation path 431. As a result, the air sucked into the outer air circulation fan 41 passes through the outer ventilation passage 43 through the ventilation inlet 432 as shown by the one-dot chain line arrow in FIGS.
1 and is further blown out to the outer blowing duct 42 through the ventilation outlet 433. The air in the back yard 2 is circulated by the inner ventilation device 3 and the outer ventilation device 4 as described above.
Here, the air circulating in the inner ventilation device 3 is cooled by the cooler 311 and further flows to the air rectifier 15 through the inner blow duct 32 as shown by the solid arrow in FIG. Then, the cool air blown out from the air rectifier 15 flows downward through the front opening 12 of the product display unit 1 and forms an inner air curtain in the front opening 12. The cool air blown downward is passed through the suction port 16 to the lower passage 17.
To the back yard 2 by the lower circulation fan 18.
Will be returned within. On the other hand, the air circulated in the outer ventilation device 4 flows into the outer ventilation passage 431 (flows so as to bypass the cooler 311) as shown by the one-dot chain arrow in FIG. It flows to the air rectifier 15 through 42. Then, the cool air blown out from the air rectifier 15 flows downward through the front opening 12 of the product display unit 1 and forms an outer air curtain in the front opening 12.
The air blown downward, like the cool air circulated in the inner ventilation device 3, reaches the lower passage 17 through the suction port 16 and is further returned into the back yard 2 by the lower circulation fan 18. According to the walk-in open showcase according to the present embodiment, a cool air curtain cooled by the cooler 311 is formed inside the front opening 12 of the commodity display section 1, and a cool air curtain is formed. A non-cooled air curtain is formed on the outside of the product, thereby forming double air curtains having different temperatures, so that the cooling efficiency in the product display unit 1 is improved and the required refrigeration capacity can be reduced. . The outer ventilation path 431 of the outer ventilation path device 4 uses a space (dead space) used for the hanging bracket 33 when the cooling unit 31 is installed on the ceiling portion 22. The vertical dimensions of the entire devices 3 and 4 do not become large, and there is no need to change the existing installation space 23 at all, and this installation space 23 can be used as a space for placing the product A as in the past. it can. Further, the inner air circulation fan 312 of the inner air passage device 3 and the outer air circulation fan 41 of the outer air passage device 4 are separately installed and do not interfere with each other on the ventilation passage. The exchange ability can maintain the same ability as the conventional walk-in open showcase. As described above, according to the present invention,
A cool air curtain cooled by the cooling unit is formed inside the front opening of the product display section, and a non-cooled air curtain is formed outside the cool air curtain. Since the heavy air curtain is formed, the cooling efficiency in the product display section is improved, and the required refrigerating capacity of the refrigerator can be reduced. Further, since the air in the back yard is blown out to the front opening through the gap between the cooling unit and the ceiling of the back yard by the driving of the outer air path device, the existing gap is removed by the ventilation of the outer air path device. It is used as a path, and the vertical dimension of each air path device as a whole does not increase.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view of a walk-in open showcase of the present invention. FIG. 2 is a plan view showing an outer air path device. FIG. 3 is an assembled perspective view showing a hanging bracket. Side cross-sectional view of conventional walk-in open showcase [Description of symbols] 1 ... commodity display section, 2 ... back yard, 3 ... inner air path apparatus, 4 ... outer air path apparatus, 12 ... front opening, 14 ...
Ceiling, 22 ... Ceiling, 31 ... Cooling unit, 3
3 ... hanging brackets, 431 ... outer ventilation path, A ... goods.

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Fumio Fukasawa             Sanden Stock Association, 20 Kotobukicho, Isesaki City, Gunma Prefecture             In-house F-term (reference) 3B110 AA12 AA18 AA19 BA05

Claims (1)

Claims: 1. A merchandise display part having a front opening toward the inside of a store, a back yard for storing replenished commodities behind the merchandise display part, and a front opening of the merchandise display part. A cool-in air path device that forms an air curtain in a walk-in open showcase in which a cooling unit of the cool-air path device is arranged between a ceiling portion of the product display portion and a ceiling portion of the backyard. A walk-in open showcase comprising an outer air passage device that forms another air curtain outside the air curtain through a gap between the cooling unit and a ceiling of the backyard.