JP2004286350A - Showcase - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a showcase capable of changing the ratio of cooled commodities to the other commodities when a part of the inside of a showcase body is cooled by selecting a second air passage. <P>SOLUTION: In this open showcase 1 having the second air passage H2 cooling the commodities on the lower side of a branch duct 8 and not cooling the commodities on the upper side of the branch duct 8, the branch duct 8 is formed to be attached to and detached from at least two upper and lower shelf receivers 4 among the shelf receivers 4 supporting commodity shelves 5. When the branch duct 8 is installed on the upper shelf receiver 41 when cool air is circulated through the second air passage H2, a cooling area formed on the lower side of the branch duct 8 is increased. On the other hand, when the branch duct 8 is installed on the lower shelf receiver 42, a cooling area on the lower side of the branch duct 8 is reduced. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a showcase that can selectively cool all or part of a product in a showcase body.
[0002]
[Prior art]
Conventionally, a showcase of this type is disclosed in JP-A-2002-168554.
[0003]
This showcase is an open showcase in which product shelves are arranged in a plurality of stages in the refrigerator, and has different air paths when cooling all products placed on each product shelf and when cooling some products. Select That is, when all the products are cooled, the cool air generated by the cooling device is sequentially circulated from the front part of the showcase body to the bottom part to the rear part to the ceiling part to the front part (first air path circulation of the cool air). This cools the entire inside of the showcase body.
[0004]
On the other hand, when heating the product placed on the upper product shelf and cooling the product placed on the product shelf below, the middle of the back side of the first air passage is closed by the damper of the branch damper. Thereby, the cool air flowing to the rear side flows to the branch duct. Here, since the branch duct is a duct extending from the back of the first air passage to the front, the cool air flowing through the branch duct reaches the middle of the front of the showcase body, and the middle of the front. From below, and cool air circulation in the vertical direction is performed on the lower side of the showcase body (second air path circulation of cool air). As a result, only the products placed on the lower product shelf are cooled. Note that the upper product shelf is heated by supplying power to an electric heater installed therein.
[0005]
[Patent Document 1]
JP 2002-168554 A
[Problems to be solved by the invention]
However, in the conventional showcase, since the installation position of the branch duct is fixed at one place, when the cool air is circulated in the second air passage and partially cooled, the range of the cooled product and the range of the heated product are uniform. It was decided that the ratio of cooling and heating products could not be changed.
[0007]
An object of the present invention is to provide a showcase that can change the ratio between a cooled product and other products when a part of the inside of the showcase main body is cooled by selecting the second air path in view of the above-described conventional problem. It is in.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention is configured such that cold air is sequentially circulated through a front portion, a bottom portion, a back portion, a ceiling portion, and a front portion of the showcase body, and is arranged in a plurality of upper and lower stages. A first air passage forming an air curtain in front of the shelf, and a branch duct extending from the middle of the rear part toward the front part, and cool air flowing to the rear part is passed through the branch duct to the front part. In a showcase provided with a second air path forming an air curtain in front of each product shelf, the branch duct can be detachably attached to at least two upper and lower shelf supports among shelf supports supporting each product shelf. Has become.
[0009]
According to the first aspect of the present invention, when the branch air is circulated through the second air passage, the cooling area formed below the branch duct becomes large when the branch duct is installed in the upper shelf support. On the other hand, when the branch duct is installed in the lower shelf support, the cooling area below the branch duct becomes smaller.
[0010]
Further, the branch duct has a structure including a cool air duct partition damper for partitioning a back surface of the first air passage so as to be openable and closable, and a compartment partition damper for opening and closing a gap between a side wall of the showcase body (claim). Item 2).
[0011]
Since the sliding position of the in-compartment partition damper can be arbitrarily set by the fixing member, the space in the compartment can be adjusted according to the gap size regardless of the gap size between the branch duct and the side wall surface of the showcase body. Can be vertically divided (claim 3). In addition, since the interior packing is in close contact with the side wall of the showcase body, it can be airtightly partitioned (claim 4).
[0012]
Since the sliding position of the cold air duct partition damper can be arbitrarily set by a fixing member, the rear portion of the first air passage is vertically moved in accordance with the air passage width regardless of the air passage width. (Claim 5). Further, when the cold air duct partition damper partitions the rear face, the cold air duct partition damper comes into close contact with the air path partition packing, so that the rear face can be partitioned airtightly.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
1 to 9 (a) and 9 (b) show an embodiment of a showcase according to the present invention. FIG. 1 is a longitudinal sectional view of an open showcase, FIG. 2 is a front view of a main part of the open showcase, 3 is a perspective view showing a branch duct, FIG. 4 is a perspective view showing a duct upper member and a duct lower member, FIG. 5 is a perspective view of assembling the duct upper member, FIG. 6 is a perspective view of assembling the duct lower member, and FIG. a), (b), and (c) are cross-sectional views showing the operation of pulling out the variable air outlet duct, FIG. 8 is a cross-sectional view showing the operation of returning the variable air outlet duct, and FIGS. FIG.
[0014]
First, a schematic configuration of the open showcase will be described with reference to FIG. The open showcase 1 includes a showcase main body 21 having a front opening and a machine room 22 formed below the showcase main body 21. The showcase body 21 has a cold air duct 3 formed between an outer heat insulating wall 21a having a U-shaped cross section and an inner box 21b, and a product shelf 5 supported by a shelf receiver 4 on the front surface of the inner box 21b. It is installed on the steps. Further, a blower 6 and an evaporator 7 as a cooling device are installed in the cool air duct 3, and a refrigerant such as a compressor 22 a of the machine room 22 circulates to the evaporator 7, so that the air passing through the cool air duct 3 is cooled. It has become so. Here, when the blower 6 is driven, the air in the showcase main body 21 circulates through the cool air duct 3 and is cooled by the evaporator 7, and cool air is supplied into the showcase main body 21. More specifically, as shown by a solid line arrow in FIG. 1, the air in the showcase body 21 sequentially circulates from the front part 3a → the bottom part 3b → the back part 3c → the ceiling part 3d → the front part 3a, An air curtain is formed on the front surface 3a of the showcase body 21 (such a cool air circulation is hereinafter referred to as a first air passage H1). The air curtain is formed between the outlet 3f of the cool air duct 3 and the inlet 3e, and the positions of the outlet 3f and the inlet 3e are set such that the air curtain region is in front of each product shelf 5. Is designed. Note that an electric heater (not shown) is installed on each of the product shelves 5, and when the electric heater is energized, the product placed on each of the product shelves 5 is heated.
[0015]
The above configuration is the same as that of the conventional open showcase. The open showcase 1 according to the present embodiment is characterized by the structure of the branch duct 8 forming the second air passage H2. Hereinafter, the structure of the branch duct 8 will be described with reference to FIGS. 2 to 9A and 9B.
[0016]
The left and right dimensions of the branch duct 8 are the width between the shelf supports 4 installed on the left and right in the showcase body 21, and the front and rear dimensions are also substantially the same as the front and rear dimensions of the shelf receiver 4. It has become. The mounting position of the branch duct 8 is installed on the second shelf receiver 42 from the top as shown in FIGS. 1 and 2, but can also be installed on the uppermost shelf receiver 41. . That is, as shown in FIG. 2, immediately below the uppermost shelf receiver 41 and the second shelf receiver 42 from the top in the inner box 21b, a damper through hole 21c through which a cool air duct partition damper 822 to be described later penetrates is formed. A lid 23 that opens and closes the through hole 21c is formed. The lid 23 is attached to the front surface of the inner box 21b with a decorative screw 23a, and a shaft portion of the decorative screw 23a passes through a screw guide hole 22b extending vertically. Thereby, when moving upward like the lid 23 on the shelf receiver 41 side and fixing it with the decorative screw 23a, the damper through hole 21c is closed, while the lid 23 is lowered as shown by the two-dot chain line. , The damper through-hole 21c is opened, and the branch duct 8 can be installed.
[0017]
The branch duct 8 includes a duct upper member 81 and a duct lower member 82 as shown in FIG.
[0018]
As shown in FIG. 5, the duct upper member 81 has a duct upper plate 811 and a variable outlet duct 812 attached to the front side of the duct upper plate 811. As shown in FIG. 5, the duct upper plate 811 is formed with a duct holding piece 811a formed by bending both left and right ends downward in a U-shaped cross section. An extended suspension rail 813 is provided. The suspension rail 813 is formed so as to have a gap extending back and forth between the suspension rail 813 and the upper surface of the duct upper plate 811. The lower end support rail 4a of the shelf receiver 4 is inserted into the gap as shown in FIG. Also, screw holes 813a and 4b are formed in the suspension rail 813 and the lower end support rail 4a, and the shaft of the decorative screw 4c is screwed into the screw holes 813a and 4b. 2 and 3, only one of the suspension rails 813 (the left suspension rail) is shown, but the other (the right suspension rail) is also supported by the other shelf receiver 4. . The branch duct 8 is detachably supported by the shelf receiver 4 (41, 42) by such a support structure of the duct upper plate 811.
[0019]
As shown in FIG. 7, the variable outlet duct 812 has a guide plate 812a that opens at the lower surface and extends obliquely downward at the front end. As shown in FIG. 5, the variable outlet duct 812 is inserted into the rear side of the duct upper plate 811 via each duct holding piece 811a of the duct upper plate 811. As a result, as shown in FIGS. 7A, 7B, and 7C, the variable outlet duct 812 can be pulled out toward the front of the duct upper plate 811. As shown in FIG. 5, a locking member 814 whose center is recessed downward is formed on the back surface of the upper plate of the variable outlet duct 812.
[0020]
The lower duct member 82 covers the lower surface of the upper duct member 81 as shown in FIG. 4, and as shown in FIG. 6, a duct substrate 821 and a cold air duct partition damper installed on the upper surface of the duct substrate 821. 822 and two in-compartment partition dampers 823 installed on the back surface near both left and right ends of the duct substrate 821.
[0021]
As shown in FIG. 6, three screw holes 821a are formed on both left and right sides of the duct substrate 821. Further, two damper holding frames 821b extending in the front-rear direction are provided inside the group of screw holes 821a on the upper surface of the duct substrate 821. Further, two screw guide holes 821c extending in the front-rear direction are formed inside each damper holding frame 821b.
[0022]
Further, as shown in FIG. 6, two connection frames 821d having an inverted L-shaped cross section are provided upright on both left and right sides at the rear end of the duct substrate 821. Each connecting frame 821d is sandwiched between the rear ends of the upper damper plates 811 as shown in FIG. 3, thereby connecting the upper damper member 81 and the lower damper member 82. The connection frame 821d and the upper damper plate 811 are fixed by screws or welding.
[0023]
Further, as shown in FIG. 6, a rectangular through hole 821e is formed at the front side of the duct substrate 821 at the center in the longitudinal direction. Further, an elastic hook plate 824 is fixed on the back surface of the duct substrate 821 near the through hole 821e. As shown in FIG. 7, the hook plate 824 has its rear end fixed to the back surface of the duct substrate 821. A hook 824a protruding upward at an acute angle is formed on the front end side of the hook plate 824, and an operation unit 824b is formed forward from the front end of the hook 824a. The hook portion 824a protrudes from the through hole 821e, and the locking member 814 of the variable outlet duct 812 is locked. Both the hooking plate 824 and the locking member 814 constitute a stopper member 83 for restricting the movement of the variable outlet duct 812 in the front-rear direction.
[0024]
As shown in FIGS. 4 and 6, the cold air duct partition damper 822 is arranged in a plate shape on the upper surface of the duct substrate 821. As shown in FIG. 3c can be completely closed. A guide plate 822a extending in the front-rear direction is attached to both left and right sides of the cold air duct partition damper 822. As shown in FIG. 4, the cool air duct partition dampers 822 are arranged between the respective damper holding frames 821b, while the respective guide plates 822a are brought into contact with the respective damper holding frames 821b, and the cold air duct partition dampers 822 are slid in the longitudinal direction. It has a structure to do.
[0025]
Leg portions 822b bent in an L-shaped cross section are formed near the left and right sides of the front end of the cold air duct partition damper 822, and a sliding plate 822c extending in the front-rear direction is fixed to the back surface of the leg portions 822b. The slide duct 822c allows the cold air duct partition damper 822 to slide smoothly. Further, a screw hole 822d penetrating vertically is formed in the leg 822b and the sliding plate 822c. As shown in FIG. 6, a decorative screw 841 is screwed from the back side of the damper substrate 821 through the screw guide hole 821c. 822d. Accordingly, the makeup screw 841 can be gripped to apply a moving force in the front-rear direction to the cold air duct partition damper 822. Further, the screw guide hole 821c and the guide plate 822a function as a guide member of the cool air duct partition damper 822, and the decorative screw 841 functions as a fixing member of the cool air duct partition damper 822.
[0026]
Although the decorative screw 841 is made of a resin material and has low heat conduction and is hardly dew-condensed and has a low hardness, it is used as a fixing member. However, the decorative screw 841 may be formed of a sheet metal.
[0027]
In the cold air duct partition damper 822 configured as described above, as shown in FIG. 7, a ventilation path 8a is formed between the cold air duct partition damper 822 and the duct substrate 821 located therebelow. The ventilation path 8a communicates with a ventilation path 8b formed between the variable outlet duct 812 and the duct substrate 821. These air passages 8a and 8b form a cold air passage for the second air passage H2 in the branch duct 8, and the front end of the air passage 8b (between the front end of the variable outlet duct 812 and the front end of the duct board 821). Is formed with an outlet 8c of the branch duct 8.
[0028]
As shown in FIG. 7, a damper through hole 21c is formed in a portion of the inner box 21b corresponding to the cold air duct partition damper 822. The cold air duct partition damper 822 can be inserted into and taken out of the back surface 3c of the cold air duct 3 through the damper through hole 21c. Further, a packing 21d is provided on the outer heat insulating wall 21a on the back surface 3c. The packing 21d is in close contact with the rear end face of the cool air duct partition damper 822 to partition the inside of the cool air duct 3 in an airtight manner.
[0029]
As shown in FIG. 6, each in-compartment partition damper 823 is formed by a plate that is vertically elongated in the front-rear direction, and has three screw guide holes 823a at predetermined intervals in the front-rear direction. . Each screw guide hole 823a is horizontally long, and a stepped screw 842 is fitted into the upper and lower screw guide holes 823a, and a decorative screw 843 is fitted into the central screw guide hole 823a. The in-compartment partition dampers 823 are slidably fixed to the duct substrate 821 via these screws 842, 843. Here, as shown in FIG. 9, the stepped portion of the stepped screw 842 is fitted in the screw guide hole 823 a, so that the in-compartment partition dampers 823 can slide in the left-right direction while suppressing back and forth play. ing. In addition, the movement of each partition damper 823 in the horizontal direction is restricted by tightening the decorative screw 843, and the restriction on the movement of each partition damper 823 is released by relaxing the decorative screw 843. The screw guide hole 823a and the stepped screw 842 function as a guide member of the internal partition damper 823, and the decorative screw 843 functions as a fixing member of the internal partition damper 823.
[0030]
A packing 823b is fixed to an end of each in-compartment partition damper 823. As shown in FIG. 9B, the packing 823b comes into close contact with the side wall 21e of the showcase body 21 when the partitioning damper 823 moves outward. Thus, the inside of the showcase body 21 is vertically partitioned by the branch damper 8.
[0031]
In the open showcase 1 according to the present embodiment, when cooling all the products placed on each product shelf 5, as shown in FIG. 7A, the variable blow duct 812 is placed on the back side of the duct upper plate 811. It is almost housed and the outlet 8c of the branch duct 8 is closed. Further, since the locking member 814 is locked to the hook 824a of the hook plate 824, the forward movement of the variable outlet duct 812 is restricted. 7A, the cold air duct partition damper 822 is also accommodated on the back surface side of the duct upper plate 811 and is separated from the rear surface 3c of the cool air duct 3. As shown in FIG. Thereby, the first air passage H1 is in a communicating state, and as shown by a solid arrow in FIG. 1, the air in the showcase main body 21 is displaced by the front part 3a → the bottom part 3b → the back part 3c → the ceiling part 3d. → It circulates sequentially with the front part 3a, and the entire inside of the showcase body 21 is cooled.
[0032]
Next, among the product shelves 5, the products placed on the uppermost row and the second product shelf 5 from the top are heated, and the products placed on the other product shelves 5 are cooled. 7 (a), the variable outlet duct 812 is pulled forward. As a result, the locking member 814 comes into pressure contact with the hook portion 824a as shown in FIG. 7B, and pushes down the hook portion 824a downward against the elastic force of the hook plate 824.
[0033]
By continuing the operation of pulling out the variable outlet duct 812, the locking member 814 gets over the hook portion 824a, and the outlet 8c of the variable outlet duct 812 is connected to the branch duct 81 as shown in FIG. Formed forward.
[0034]
In addition, immediately before and after the operation of pulling out the variable air outlet duct 812, the cold air duct partition damper 822 is pushed rearward. When performing the operation of pushing out the cold air duct partition damper 822, both hands are put below the branch duct 8 to loosen the decorative screws 841. Then, as shown in FIG. 7B, the cold air duct partition damper 822 is pushed backward. Thereby, the cool air duct partition damper 822 enters the back surface 3c of the cool air duct 3 through the damper through hole 21c, and as shown in FIG. 7C, the rear end of the cool air duct partition damper 822 comes into close contact with the packing 21d. . Next, the decorative screw 841 is retightened, and the cold air duct partition damper 822 is fixed. As a result, the rear surface portion 3c is vertically shut off by the cool air duct partition damper 822.
[0035]
Further, the operation of pulling out the in-compartment partition damper 823 is performed. That is, the interior partition damper 823 is normally disposed so as to be entirely hidden on the back surface of the damper substrate 821 as shown in FIG. 9A, and the packing 823b is separated from the side wall 21e with a gap. . At the time of this pull-out operation, the decorative screw 843 is loosened, and the internal partition damper 823 is pulled out toward the side wall 21e as shown in FIG. 9B, and the packing 823b of the internal partition damper 823 is closely attached to the side wall 21e. Let it. Then, the decorative screw 843 is tightened again. Thereby, the gap between the side surface of the branch duct 8 and the side wall 21e is closed.
[0036]
When the operation of pulling out the variable air outlet duct 812, the operation of pushing out the cold air duct partition damper 822, and the operation of pulling out the in-compartment partition damper 823 as described above are completed, the air in the showcase body 21 is discharged to the second air passage H2. Circulates through. That is, the air in the showcase main body 21 passes through the suction port 3e, passes through the bottom face 3b, and is further cooled by the evaporator 7 on the back face 3c, as indicated by the dashed arrow in FIG. Rise towards. The raised cool air passes through the ventilation passage 8a as shown by the broken arrow in FIG. 7C, further passes through the ventilation passage 8b of the variable outlet duct 812, and is blown downward from the outlet 8c of the branch duct 8. Then, as shown by the broken arrow in FIG.
[0037]
By circulating the cool air in the second air passage H2, the products placed on the lowest and second lowest shelf 5 are cooled. On the other hand, the cool air does not circulate on the uppermost and second merchandise shelf 5 side, and the electric heater is energized, so that the merchandise placed on these merchandise shelves 4 is heated.
[0038]
When returning the variable outlet duct 812, as shown in FIG. 8, the operation unit 824b of the hook plate 824 is hooked down with a finger and pulled down. As a result, the locking member 814 is disengaged from the hook portion 824a, and the backward movement restriction of the variable blow duct 812 is released. Next, the variable outlet duct 812 may be pushed backward as indicated by the solid arrow in FIG.
[0039]
According to the present embodiment, when the mounting position of the branch duct 8 is changed to the uppermost shelf receiver 41, first, the decorative screw 4c is loosened to release the fastening state between the shelf receiver 42 and the branch damper 8, The branch damper 8 is removed from the shelf receiver 42. Further, as shown in FIG. 2, the lid 23 on the shelf receiver 41 side is moved downward as indicated by a two-dot chain line to open the damper through hole 21c. Then, the suspension rail 813 of the branch damper 8 is hung on the lower support rail 4a of the shelf receiver 41, and the branch duct 8 and the shelf receiver 41 are fastened with the decorative screws 4c. Thereby, the operation of changing the attachment position of the branch duct 8 is completed, and the cooling area in the showcase body 21 can be increased.
[0040]
In this way, the cooling area in the showcase body 21 can be changed by changing the attachment position of the branch duct 8 up and down, so that the ratio of the cooling product to the heating product can be changed.
[0041]
Further, when the cold air duct partition damper 822 is pushed out to the rear face 3c, the decorative screw 841 may be fastened when the cold air duct partition damper 822 is pressed against the packing 21c regardless of the width of the rear face 3c. The width of the portion 3c is not affected. Therefore, as shown in FIG. 1, even when the width of the back part 3 c becomes narrower upward, the back part 3 c can be reliably partitioned by the cold air duct partition damper 822. Further, since the cold air duct partition damper 822 is brought into close contact with the packing 21c, the airtightness is also improved.
[0042]
Furthermore, when pulling out the internal partition damper 823 toward the side wall 21e, the decorative screw 842 is fastened when the packing 823b is pressed against the side wall 21e regardless of the gap size between the branch duct 8 and the side wall 21e. And the gap size is not affected. Further, since the in-compartment partition damper 823 is brought into close contact with the side wall surface 21e by the packing 823b, the airtightness is also improved.
[0043]
When the cool air is circulated in the first air passage H1, as shown in FIG. 7A, the variable air outlet duct 812 is housed in the branch duct 8, so that the air curtain of the front part 3a is moved by the variable air outlet duct. 812 does not block. When circulating cool air in the second air passage H2, as shown in FIG. 7 (c), the variable air outlet duct 812 is drawn forward, and as shown by a dashed arrow in FIG. Is formed in front of each of the commodity shelves 5 located thereunder, so that the air curtain is not obstructed by each of the commodity shelves 5. Therefore, no matter which of the air paths H1 and H2 is selected, the product can be efficiently cooled. Further, while a magnetic plate (not shown) is fixed to the rear end of the cold air duct partition damper 822, a magnet (not shown) is accommodated in the packing 21d, so that the cold air duct partition damper 822 is attached to and detached from the inner surface of the outer heat insulating wall 21a. You may make it free.
[0044]
【The invention's effect】
As described above, according to the first and second aspects of the present invention, when the branch air is circulated through the second air passage, the branch duct is formed below the branch duct when the branch duct is installed in the upper shelf support. The cooling area becomes larger. On the other hand, when the branch duct is installed in the lower shelf support, the cooling area below the branch duct becomes smaller. Thus, by changing the installation position of the branch duct, it is possible to change the ratio between the cooling product and other products. In addition, by removing the branch duct, all products can be made to be cooled products or other products. Further, by removing the branch duct, a large product storage space can be provided in the height direction, so that products having a high height can be stored.
[0045]
According to the third aspect of the present invention, the sliding position of the in-compartment damper can be arbitrarily set by the fixing member. Therefore, even if the gap dimension between the branch duct and the side wall surface of the showcase body is any, The interior space can be vertically divided according to the gap size. Further, since the in-compartment partition damper can be retracted inward, the side wall of the showcase body is not damaged when the branch duct is removed. Furthermore, even when a fluorescent lamp or the like is installed in front of the branch duct on the inner surface of the side wall surface of the showcase body, when removing the branch duct, it is only necessary to retract the inside partition damper to the inside, and the fluorescent lamp Etc. do not get in the way.
[0046]
According to the invention of claim 4, the packing for partitioning in the refrigerator is in close contact with the side wall of the showcase body, so that the partition can be airtightly partitioned.
[0047]
According to the fifth aspect of the present invention, the sliding position of the cold air duct partition damper can be arbitrarily set by the fixing member. The rear part can be divided up and down according to the dimensions.
[0048]
According to the invention of claim 6, when the cool air duct partition damper partitions the back surface, the cool air duct partition damper comes into close contact with the air path partition packing, so that the back portion can be partitioned airtightly.
[Brief description of the drawings]
FIG. 1 is a vertical sectional view of an open showcase. FIG. 2 is a front view of a main part of the open showcase. FIG. 3 is a perspective view showing a branch duct. FIG. 4 is a perspective view showing a duct upper member and a duct lower member. 5: Perspective view of assembling the upper member of the duct. FIG. 6: Perspective view of assembling the lower member of the duct. FIG. 7 is a cross-sectional view showing the operation of pulling out the variable air outlet duct. 9 Sectional view showing the operation of the compartment partition damper [Explanation of reference numerals]
DESCRIPTION OF SYMBOLS 1 ... Open showcase, 3 ... Cold air duct, 3a ... Front part, 3b ... Bottom part, 3c ... Back part, 3d ... Bottom part, 4, 41, 42 ... Shelf receiving, 5 ... Product shelf, 8 ... Branch duct, 21: Showcase body, 21c: Damper through hole, 22: Lid, 83: Stopper member, 812: Variable outlet duct, 821c: Screw guide hole, 822a: Guide plate, 822b: Leg, 822c: Sliding plate, 823a .., Screw guide holes, 842, stepped screws, 843, decorative screws, H1, first air path, H2, second air path.

Claims (6)

A first air passage that circulates cold air sequentially with the front part, bottom part, back part, ceiling part, and front part of the showcase body to form an air curtain in front of a plurality of upper and lower product shelves; It has a branch duct extending from the middle of the back part toward the front part, and cool air flowing to the back part is passed through the front part through the branch duct to form an air curtain in front of each product shelf. In a showcase with a second air passage,
The showcase, wherein the branch duct is detachable from at least two upper and lower shelf supports among shelf supports for supporting the respective product shelves. The branch damper includes:
2. The show according to claim 1, further comprising: a cold air duct partition damper that opens and closes a rear portion of the first air passage, and a compartment partition damper that opens and closes a gap between a side wall of the showcase body. 3. Case. The interior partition damper has a guide member for an interior partition damper that slidably guides toward the side wall, and a fixing member that can fix the interior partition damper at an arbitrary sliding position. The showcase according to claim 2, wherein 4. The showcase according to claim 3, wherein the inside partition damper has a inside partition packing at an end on the side wall side. 5. A guide member for the cool air duct partition damper that slidably guides toward the back surface of the first air passage; and a fixing member that can fix the cool air duct partition damper at any sliding position. The showcase according to claim 2, comprising: 6. The showcase according to claim 5, further comprising an air path partition packing at a position facing the cold air duct partition damper on a rear surface of the rear part of the first air path.

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