JP6769117B2 - Showcase intermediate duct - Google Patents

Description

The present invention relates to an intermediate duct of a showcase, and more particularly to an intermediate duct applied to a showcase that holds goods displayed on a merchandise display shelf at at least two temperatures.

Conventionally, the following showcases are known as showcases for holding products displayed on product display shelves at at least two temperatures.

For example, a plurality of product display shelves are provided so as to be lined up in the vertical direction in a storage room inside the case body having a front opening, and products are placed and displayed on each product display shelf. .. In addition, two air passages for air sucked through the suction port are formed inside the case body and outside the storage chamber, and the air that has passed through one of the air passages is formed in the upper part of the storage chamber. It is blown out from the upper air outlet. The other air passage is equipped with an evaporator that cools the passing air, and the air cooled by this evaporator is intermediate through an intermediate duct provided at the bottom of any product display shelf in the storage room. It is blown out from the air outlet. The air blown out from the upper outlet and the air blown out from the middle outlet form an air curtain at the front opening of the case body by being sucked into the suction port.

In such a showcase, the storage chamber has two different temperature zones, one in which the temperature is adjusted by the air blown from the upper outlet and the other in which the temperature is adjusted by the air blown from the intermediate outlet. The products formed and displayed on the product display shelves in each temperature range are adjusted to a desired temperature state. More specifically, the air blown out from the intermediate outlet cools the products displayed on the product display shelves in the region below the intermediate duct as a low temperature zone, and the temperature above the intermediate duct is high. As a band, the products displayed on the product display shelves in the region are adjusted to a desired temperature (see, for example, Patent Document 1).

Japanese Patent No. 4636505

By the way, in the above-mentioned showcase, the length of the product display shelf in the front-rear direction generally differs depending on the height level at which the storage room is installed. Therefore, the intermediate duct provided at the bottom of any product display shelf also needs to be changed according to the length of the product display shelf, and the intermediate duct installed according to the length of the product display shelf has been changed. .. In other words, the intermediate duct of the showcase was not versatile because the installation location was restricted by the length of the product display shelf in the front-rear direction.

In view of the above circumstances, the present invention can be installed at any location without being limited by the length of the product display shelf in the front-rear direction, and can be used to improve versatility. The purpose is to provide.

In order to achieve the above object, the intermediate duct of the showcase according to the present invention is used to display arbitrary products in the storage chamber in a state of penetrating a hole formed in a back panel forming the back surface of the storage chamber of the case body. An intermediate provided at the front end of the shelf by introducing air that is detachably provided at the bottom of the shelf and that passes through an air air passage partitioned from the storage chamber by the back panel from an introduction port provided at the rear end. In an intermediate duct that forms an air curtain in front of its own lower region in the storage chamber by blowing out from the air outlet, a first duct portion having the introduction port and a rear end portion having the intermediate air outlet. Intervenes between the second duct portion that can slide and move in the front-rear direction while overlapping the front end portion of the first duct portion, and between the first duct portion and the second duct portion. While the position of the second duct portion with respect to the first duct portion is regulated by the elastic restoring force, when the second duct portion comes into contact with the front end portion of the member supporting the product display shelf , the elastic restoring force itself is used. It is characterized by including an elastic member that allows the second duct portion to be arranged at a position where the second duct portion is slid forward in a manner of being separated from the first duct portion against a force.

The present invention includes the feature that the intermediate duct of the showcase, the rear end face of the first duct portion is joined by a magnetic force to the contact plate of the air air passage is provided in the lower part of any article display rack To do.

According to the present invention, a first duct portion having an introduction port and a second duct portion having an intermediate outlet and having a rear end portion overlapping with the front end portion of the first duct portion can be slid and moved in the front-rear direction. When the elastic member intervening between the two ducts regulates the position of the second duct portion with respect to the first duct portion by its own elastic restoring force, while the second duct portion comes into contact with the components of the product display shelf. Allows the second duct to be placed in a position where it slides forward in a manner that separates it from the first duct against its own elastic restoring force, so that the length of the intermediate duct in the anteroposterior direction is long. The duct can be changed and the position of the intermediate outlet can be moved. As a result, the product display shelves can be installed at any location without being limited by the length in the front-rear direction, and the versatility can be improved.

FIG. 1 is a cross-sectional side view of a showcase equipped with an intermediate duct according to an embodiment of the present invention. FIG. 2 is an enlarged vertical cross-sectional view of the intermediate duct shown in FIG. FIG. 3 is a schematic view schematically showing a case where the intermediate duct shown in FIG. 1 is viewed from the front. FIG. 4 is a vertical cross-sectional view showing a state in which the length of the intermediate duct shown in FIG. 2 in the front-rear direction is increased.

A preferred embodiment of the intermediate duct of the showcase according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a cross-sectional side view of a showcase equipped with an intermediate duct according to an embodiment of the present invention. The showcase illustrated here includes a case body 10.

The case body 10 is a substantially rectangular heat insulating housing having an opening (hereinafter, also referred to as a front opening) 11 formed on the front surface thereof, and a storage chamber 12 is formed inside the case body 10 and an air circulation means 20 is provided. Has been done.

The storage chamber 12 is a chamber formed so as to face the front opening 11, and a plurality of (five in the illustrated example) product display shelves 13 are arranged in a plurality of stages along the vertical direction. The product display shelves 13 are for displaying products on which they are placed.

The air circulation means 20 includes an air passage 21 and a circulation fan 22. The air passage 21 is an air passage from the suction port 14 to the air outlet 15. Here, the suction port 14 is an opening for sucking the air inside the storage chamber 12, and is a long shape provided so as to extend along the left-right direction. The suction port 14 is provided at the lower front edge of the storage chamber 12, that is, at the lower part near the front opening 11 of the case body 10.

The air outlet 15 is an opening for blowing air into the storage chamber 12. The air outlet 15 is provided so as to extend along the left-right direction, and is provided at the upper front edge portion of the storage chamber 12, that is, the upper portion near the front opening 11 of the case body 10.

Such an air passage 21 is outside the storage chamber 12, a lower duct 21a below the storage chamber 12, a back duct 21b outside the storage chamber 12 on the back side thereof, and an outside of the storage chamber 12. It is configured in a state of communicating with the upper duct 21c above the ridge. The back duct 21b is an air passage that is sandwiched between a back panel 16 that constitutes the back surface of the storage chamber 12 and a metal contact plate 17 that extends in the vertical direction and extends in the vertical direction. is there. The back panel 16 is formed with a plurality of hole portions 16a such as mounting holes for mounting the intermediate duct 30 described later.

The circulation fan 22 circulates air and is provided at a predetermined portion of the lower duct 21a. In the present embodiment, the circulation fan 22 is provided at a predetermined portion of the lower duct 21a, but in the present invention, the arrangement position of the circulation fan 22 is not particularly limited, and the circulation fan 22 described later It may be provided anywhere as long as it can exert its function.

The back duct 21b is provided with an evaporator 23. The evaporator 23 is connected to a compressor, a condenser and an expansion mechanism (not shown) by a refrigerant pipe to form a refrigerating cycle in which the refrigerant is circulated. The compressor is for compressing the refrigerant, and the condenser is for condensing the refrigerant compressed by the compressor. The expansion mechanism adiabatically expands the refrigerant condensed by the condenser to bring it into a low temperature and low pressure state.

Such an air circulation means 20 sucks the air inside the storage chamber 12 through the suction port 14 by driving the circulation fan 22, and sends the sucked air to the outlet 15 in a manner of passing through the air passage 21. Air is circulated between the inside and the outside of the storage chamber 12 by blowing air into the inside of the storage chamber 12 through the air outlet 15.

The evaporator 23 exchanges heat between the air passing through the back duct 21b from the lower side to the upper side by driving the circulation fan 22 and the refrigerant which has been made into a low temperature and low pressure state by the expansion mechanism, more specifically. The air passing through the back duct 21b is cooled by evaporating the low-temperature low-pressure refrigerant. The refrigerant evaporated in the evaporator 23 is sucked by the compressor and circulates in the refrigeration cycle.

In such a showcase, an intermediate duct 30 is provided. The intermediate duct 30 has a substantially flat plate shape as a whole. The intermediate duct 30 is provided in the storage chamber 12 so as to penetrate the hole 16a of any of the back panels 16 and the rear end portion blocks the back duct 21b. More specifically, any product display shelf is provided. (In the present embodiment, it is provided at the lower part of the product display shelf (hereinafter, also referred to as the target product display shelf) 13 from the top to the fourth stage. The size of the left-right width of the intermediate duct 30 is substantially equal to the left-right width of the product display shelf 13, and the intermediate duct 30 is removable from the storage chamber 12.

FIG. 2 is an enlarged vertical cross-sectional view of the intermediate duct 30 shown in FIG. As shown in FIG. 2, the intermediate duct 30 includes a first duct portion 31, a second duct portion 32, and a duct spring (elastic member) 33.

The first duct portion 31 is a box-shaped one that constitutes the main portion of the intermediate duct 30, and is provided with an introduction port 311 and a front end opening 312 and a magnet 313. The introduction port 311 is formed in the lower part of the rear end portion of the first duct portion 31. The front end opening 312 is formed on the front surface of the first duct portion 31. The front end opening 312 communicates with the introduction port 311 through a hollow portion inside the first duct portion 31. The magnet 313 is attached to the rear surface of the first duct portion 31.

The second duct portion 32 has a box shape constituting the front end portion of the intermediate duct 30, and is provided with a rear end opening 321 and an intermediate air outlet 322. The rear end opening 321 is formed on the rear surface of the second duct portion 32. The intermediate outlet 322 is formed in the lower part of the front end portion of the second duct portion 32. The intermediate outlet 322 communicates with the rear end opening 321 through a hollow portion inside the second duct portion 32.

In such a second duct portion 32, the rear end portion enters the inside of the first duct portion 31 through the front end opening 312 of the first duct portion 31, and the hollow portion enters the hollow portion of the first duct portion 31. It communicates with each other to form a wind tunnel 30a. The rear end portion of the second duct portion 32 overlaps the front end portion of the first duct portion 31.

More specifically, in the second duct portion 32, the upper surface of the upper wall portion 32a of the rear end portion is in contact with the lower surface of the upper wall portion 31a of the front end portion of the first duct portion 31, and the lower wall of the rear end portion. The lower surface of the portion 32b is in contact with the upper surface of the lower wall portion 31b of the front end portion of the first duct portion 31, and the left surface of the left wall portion of the rear end portion of the second duct portion 32 is the front end portion of the first duct portion 31. It is in contact with the right surface of the left wall portion, and the right surface of the right wall portion of the rear end portion of the second duct portion 32 is in contact with the left surface of the right wall portion of the front end portion of the first duct portion 31.

Further, an elongated hole 32b1 having a longitudinal direction in the front-rear direction is formed in the lower wall portion 32b of the rear end portion of the second duct portion 32. The long hole 32b1 is penetrated by the tip of a screw member N provided so as to penetrate the lower wall portion of the front end portion of the first duct portion 31. As a result, in the second duct portion 32, the tip of the screw member N displaces the elongated hole 32b1 relative to the longitudinal direction of the elongated hole 32b1 along the front-rear direction with respect to the first duct portion 31. It can be slidably moved.

Further, in the second duct portion 32, as shown in FIG. 3, the left wall portion 32c of the front end portion extends in a manner of gradually inclining to the left as it goes downward, and the right wall of the front end portion The portion 32d extends in such a manner that it gradually inclines to the right as it goes downward. The left wall portion 32c and the right wall portion 32d of the front end portion of the second duct portion 32 overlap with the front end portions of the pair of left and right bracket members 13a that support the target product display shelf 13 when viewed from the front. There is.

The duct spring 33 is interposed between the first duct portion 31 and the second duct portion 32. The duct spring 33 urges the second duct portion 32 toward the rear so as to approach the first duct portion 31 by its own elastic restoring force. Under normal conditions, the screw member N is the elongated hole 32b1. The position of the second duct portion 32 with respect to the first duct portion 31 is regulated by abutting on the front end edge portion.

In the intermediate duct 30 having such a configuration, the rear end portion of the first duct portion 31 penetrates the hole portion 16a of the back panel 16 from the front, and the magnet 313 magnetically joins the contact plate 17 to display the target product. It is attached to the lower part of 13. Although not clearly shown in the figure, in this case, the first duct portion 31 is also supported by the bracket member 13a. Then, the intermediate duct 30 can be removed from the storage chamber 12 by separating the magnet 313 from the contact plate 17.

In the showcase having the above configuration, the air inside the storage chamber 12 circulates as follows by driving the compressor and the circulation fan 22.

The air inside the storage chamber 12 sucked into the lower duct 21a of the air passage 21 through the suction port 14 passes through the lower duct 21a and then the back duct 21b.

The air passing through the back duct 21b is cooled by the evaporator 23. The air cooled by the evaporator 23 is introduced into the wind tunnel 30a through the introduction port 311, passes through the wind tunnel 30a, is blown out through the intermediate outlet 322, and is sucked into the air passage 21 again through the suction port 14 to be stored. It circulates inside and outside the chamber 12. As a result, an air curtain with air cooled by the evaporator 23 is formed on the front surface of the lower region of the intermediate duct 30 in the storage chamber 12.

In this way, the air (cold air) blown out from the intermediate outlet 322 forms an air curtain on the front surface of the lower area of the intermediate duct 30, so that the lower area of the intermediate duct 30 in the storage chamber 12 is the lower area of the intermediate duct 30. It can be cooled more than the upper area. As a result, the upper region and the lower region of the intermediate duct 30 in the storage chamber 12 can be set to different temperature zones, and the products in the storage chamber 12 can be held at two temperatures.

In the intermediate duct 30 constituting such a showcase, when it is mounted on the lower part of another product display shelf 13 having a length in the front-rear direction longer than the target product display shelf 13, as shown in FIG. The rear end portion of the first duct portion 31 penetrates the hole portion 16a of the back panel 16 from the front, and the magnet 313 is magnetically joined to the contact plate 17. In this case, the left wall portion 32c and the right wall portion 32d of the front end portion of the second duct portion 32 come into contact with the front end portion of the bracket member 13a that supports the other product display shelf 13, so that the second duct portion 32 becomes. , It is arranged at a position where it slides forward in a manner of being separated from the first duct portion 31 against the elastic restoring force of the duct spring 33. That is, when the second duct portion 32 comes into contact with the component of the product display shelf 13, the duct spring 33 separates the second duct portion 32 from the first duct portion 31 against its own elastic restoring force. It is allowed to be placed in a position where it is slid forward in such a manner. In this way, the intermediate duct 30 can have its own length in the front-rear direction variable.

As described above, according to the intermediate duct 30 of the showcase according to the present embodiment, it is interposed between the first duct portion 31 having the introduction port 311 and the second duct portion 32 having the intermediate outlet 322. When the duct spring 33 normally regulates the position of the second duct portion 32 with respect to the first duct portion 31 by its own elastic restoring force, while the second duct portion 32 comes into contact with the bracket member 13a of the product display shelf 13. Is allowed to be arranged in a position where the second duct portion 32 is slid forward in a manner of being separated from the first duct portion 31 against its own elastic restoring force. The length in the direction can be changed, and the position of the intermediate outlet 322 can be moved. As a result, the product display shelf 13 can be installed at any location without being limited by the length in the front-rear direction, and the versatility can be improved.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made.

In the above-described embodiment, the rear end portion of the second duct portion 32 has entered the hollow portion of the front end portion of the first duct portion 31, but in the present invention, the rear end portion of the second duct portion 32 is formed. Any configuration may be used as long as it can slide and move in the front-rear direction while overlapping the front end portion of the first duct portion 31.

10 Case body 12 Storage room 13 Product display shelf 16 Back panel 16a Hole 17 Contact plate 30 Intermediate duct 31 1st duct 311 Introductory port 313 Magnet 32 2nd duct 322 Intermediate air outlet 33 Duct spring (elastic member)

Claims (2)

It is detachably provided at the bottom of any product display shelf in the storage room in a state of penetrating the hole formed in the back panel forming the back surface of the storage room of the case body, and is provided with the back panel to and the storage room. By introducing the air passing through the partitioned air air passage from the introduction port provided at the rear end and blowing it out from the intermediate air outlet provided at the front end, the air is blown out to the front of its lower region in the storage chamber. In the intermediate duct that forms the curtain
The first duct portion having the introduction port and
A second duct portion having the intermediate outlet and capable of sliding in the front-rear direction with the rear end portion overlapping the front end portion of the first duct portion.
It is interposed between the first duct portion and the second duct portion, and normally regulates the position of the second duct portion with respect to the first duct portion by its own elastic restoring force, while the second duct portion. Is in contact with the front end portion of the member supporting the product display shelf, the position where the second duct portion slides forward in a manner of separating from the first duct portion against its own elastic restoring force. An intermediate duct in the showcase, characterized by having elastic members that allow it to be placed in. The intermediate duct of the showcase according to claim 1, wherein the rear end surface of the first duct portion is magnetically joined to the contact plate of the air air passage and is provided at the lower part of an arbitrary product display shelf.

Images