JPH11241880A - Open showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance cooling performance of goods on each shelf unit by improving the chill delivery system of open showcase. SOLUTION: The open showcase 1 has a heat insulating wall 6 opening forward and the inside of which is partitioned to form a storage chamber 9 and a duct 11. A cooler disposed in the duct 11 supplies chill through a fan into the storage chamber 9 provided with a plurality of stages of shelf unit 2. Each shelf unit 2 comprises left and right brackets 22 engaged with a strut 26, a rail fixed to each bracket 22, a shelf plate 3 movable back and forth on the rail, and a reinforcing plate 23 stretching across the brackets 22 under shelf plate 3 at a specified interval. A chill passage 31 is formed between the shelf plate 3 and the reinforcing plate 23 while communicating, at the rear end thereof, with the duct 11 and at the front end thereof, with an air outlet 32 made in the lower surface at the front part of the shelf unit 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open showcase in which a plurality of shelves are provided in a storage room formed in a heat insulating wall opened to the front and cool air is supplied from a duct into the storage room.

[0002]

2. Description of the Related Art Conventionally, an open showcase of this kind has been disclosed in, for example, Japanese Patent Application Laid-Open No. 9-96485, in which a heat insulating wall having a substantially U-shaped cross section opened to the front is partitioned by a partition plate. Is a storage room on the front side and a duct on the rear side. A plurality of shelves for displaying products are erected in the storage room, and a cooler and a blower are installed in the duct, and cool air cooled by the cooler is blown by the blower at the upper edge of the opening. It is discharged from the cool air discharge port, and is sucked in from the cool air suction port at the lower edge of the opening.

[0003] Thus, while forming a cool air curtain at the opening, a part of the air is circulated into the storage room to cool the goods on each shelf.

[0004]

However, in the case of an open showcase having a relatively short height as disclosed in Japanese Patent Application Laid-Open No. 9-65958, for example, the heat insulating wall must be provided in consideration of the visibility in the storage room. The top wall ends relatively on the far side. Therefore, since the cool air discharge port is located at a position deeper than the front part of the lower shelf, there is a problem that it is difficult for the cool air to reach the lower shelf and the air curtain is easily disturbed.

The present invention has been made to solve the above-mentioned conventional technical problem, and an object of the present invention is to improve a cooling air discharge system in an open showcase to improve a cooling performance of a product on each shelf device. Aim.

[0006]

The open showcase of the present invention forms a storage room and a duct by partitioning the inside of a heat insulating wall opened to the front with a partition plate, and a cooler disposed in the duct. The cool air cooled by is supplied into the storage room by a blower, and a plurality of shelves are provided in the storage room, and each shelf device includes left and right brackets locked to a support, It is composed of a rail attached to each bracket, a shelf plate which can be moved back and forth by the rail, and a reinforcing plate attached between the brackets at a predetermined interval below the shelf plate. A cold air passage is formed between the shelf plate and the reinforcing plate, and the rear end of the cold air passage is communicated with the duct, and the front end of the cold air passage is communicated with an outlet formed on the lower surface of the front of the shelf device. is there.

According to the present invention, a duct is formed by partitioning the inside of a heat insulating wall opened to the front with a partition plate, and cool air cooled by a cooler disposed in the duct is supplied to a blower. In an open showcase having a plurality of shelves provided in the storage chamber, a cool air passage is formed in each shelf device, and the rear end of the cool air passage is communicated with the duct. Since the front end of the cold air passage was connected to the outlet formed on the lower surface of the front of the shelf device,
The cool air flowing through the duct is introduced into the cool air passage in each shelf device, and can be blown downward from the outlet at the front end.

[0008] With this, it is possible to supply cool air to the periphery of the product on each shelf device below the outlet while forming cool air curtains one after another in the opening, thereby remarkably increasing the cooling capacity in the storage room. It is something that can be improved.

[0009] In particular, the shelf device includes left and right brackets fixed to a support, rails attached to each bracket,
The shelf is made of a shelf plate that can be moved back and forth by the rails, and a reinforcing plate attached between brackets at a predetermined interval below the shelf plate. Since the passage is formed, a cool air passage can be formed in the shelf device by utilizing the structure of a so-called movable shelf and its reinforcing plate.

[0010] Thereby, it is possible to improve the cooling effect on each shelf device while improving the work of unloading commodities and increasing the strength when the shelf plate is pulled out by the reinforcing plate. Things.

In the above-mentioned open showcase of the present invention, the partition plate is provided with a through hole corresponding to the rear end of the cold air passage, and the outlet is provided between the front end of the shelf plate and the front end of the reinforcing plate. It is composed.

According to the second aspect of the present invention, in addition to the above, a through hole is formed in the partition plate corresponding to the rear end of the cold air passage, and the outlet is provided between the front end of the shelf plate and the front end of the reinforcing plate. With this configuration, the structure of the shelf device can be extremely simplified, and the cost of parts can be reduced and the productivity can be improved.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of an open showcase 1 of the present invention, FIG. 2 is a vertical sectional side view of the open showcase 1, FIG. 3 is an enlarged cross-sectional view of the open showcase 1 of a shelf device 2, and FIG. FIG. 5 is a longitudinal sectional front view of the open showcase 1 of the shelf device 2 portion, and FIG. 6 is a plan view of the open showcase 1 of the shelf device 2 portion excluding the shelf plate 3. FIG. 7 is an enlarged plan view of the open showcase 1 including the stopper 4.

In each of the drawings, an open showcase 1 according to an embodiment is installed in a convenience store or the like and is used for display and sale of drinks, and has a heat insulating wall 6 having a substantially U-shaped cross section that opens to the front. And transparent side plates 7, 7 attached to the left and right sides of the heat insulating wall 6.

A partition plate (interior rear) 8 is mounted inside the heat insulating wall 6, and a front side thereof is a storage room 9.
A duct 11 is provided between the partition plate 8 and the heat insulating wall 6. The top wall 6A of the heat insulating wall 6 ends on the back side of the bottom wall 6B, and a cool air discharge port 12 is formed below the front end of the top wall 6A.
A cool air suction port 13 is formed at the upper front end of B and communicates with the duct 11.

In the duct 11, a cooler 14 and a blower 16 constituting a refrigeration cycle of a cooling device are installed. In a machine room 17 formed below the bottom wall 6B of the heat insulating wall 6, a machine room 17 is provided.
The compressor 1 constituting a refrigeration cycle together with the cooler 14
8, a condenser 19 and a condenser blower 21 are installed.

In the storage room 9 on the front side of the partition plate 8, the shelf device 2 is installed over a plurality of upper and lower stages. Each shelf device 2 is composed of a pair of brackets 22,
, A reinforcing plate 23, a slide rail 24, a stopper 4 and the like. In this case, shelf posts 26, 26 are vertically mounted on the left and right sides of the partition plate 8, and a plurality of locking holes 27 are formed in the shelf posts 26 at predetermined intervals in the vertical direction.

The hooks 27 at the rear edges of the two brackets 22, 22 are detachably locked in locking holes 27 of a predetermined height. The slide rails 24 are attached to the bracket 22 in front and rear, and the shelf 3 is attached to and held by the left and right slide rails 24, 24. The shelf 3 is supported by the slide rails 24, 24 so as to be movable back and forth with respect to the brackets 22, 22. The shelf plate 3 is made of a plate material having good thermal conductivity such as a normal steel plate, stainless steel, or aluminum plate.

The reinforcing plate 23 is provided on both brackets 2.
It is screwed between 2 and 22. Here, the reinforcing plate 23 reinforces the entire shelf device 2 so as not to bend when the shelf plate 3 is pulled out to the front of the storage room 9. The reinforcing plate 23 is opposed to the lower part of the shelf plate 3 at a predetermined interval, and a cool air passage 31 is formed therebetween.
The front end of the reinforcing plate 23 ends before the front end of the shelf 3, and an outlet 32 is formed between these front ends to communicate with the front end of the cold air passage 31.

The partition plate 8 at a position corresponding to the rear end of the cool air passage 31 has a plurality of through holes 33.
Are formed by punching, so that the rear end of the cool air passage 31 communicates with the duct 11 on the downstream side of the blower 16.

Further, at the front end of the reinforcing plate 23, a bent portion 23A bent upward in a U-shape is formed, and at the front end of the shelf plate 3, a shelf decoration 34 is attached. Shafts 36 are mounted on both sides of the lower front portion of the shelf 3, and the stoppers 4 are pivotally supported on the shafts 36, 36.

Each stopper 4 is formed with a hook-shaped portion 4A on the inner side at the back as shown in an enlarged view in FIG.
Is formed with an inclined surface 4B that becomes thinner toward the outside, and the hook-shaped portion 4A is detachably engageable with a bent portion 23A of the reinforcing plate 23 in a state where the shelf 3 is stored in the storage room 9. And a positional relationship to be engaged with. The front end of the stopper 4 projects slightly forward from the shelf 3.

A leaf spring 4 is provided on the outer surface of each stopper 4.
The leaf spring 41 is in contact with the slide rail 24. The leaf spring 41 constantly biases the stopper 4 inward.

When the shelf 3 is stored in the storage room 9, the stopper 4 is urged by the leaf spring 41, and the hook 4 A is engaged with the bent portion 23 A of the reinforcing plate 23. Thereby, the shelf board 3 does not move carelessly.

When replenishing a product on the shelf 3, the stoppers 4, 4 are pressed against the urging force of the leaf spring 41.
Are turned inward (directions approaching each other; indicated by broken lines in FIG. 7), the hook-shaped portion 4A comes off the bent portion 23A. In this state, if the shelf 3 is pulled out by the slide rails 24, the replenishment of commodities can be performed easily.

When the work is completed, the shelf plate 3 is pushed in the direction of the storage room 9, and the inclined surface 4B of the stopper 4 comes into contact with the front surface of the bent portion 23A of the reinforcing plate 23, so that the stopper 4 moves along the inclination. It is turned. When the shelf 3 is stored in a predetermined position in the storage room 9, the hook 4 </ b> A of the stopper 4 moves to the rear side of the bent portion 23 </ b> A. The hook-shaped portion 4A is engaged with the bent portion 23A of the reinforcing plate 23 again.

Next, the cooling air circulation will be described. When the compressor 18 and the blower 16 of the cooling device are operated, the cooler 14 performs a cooling action. The cool air in the duct 11 cooled by the cooler 14 is sucked up by the blower 16 and blown upward, and is discharged into the storage chamber 9 from the cool air discharge port 12 at the uppermost part.

A part of the cool air rising inside the duct 11 flows into the cool air passage 31 of the shelf device 2 from each through hole 33... And moves forward through the cool air passage 31. It is blown downward from the outlet 32 at the front end. At this time, a bent portion 23A is formed at the front end of the reinforcing plate 23, and since the cool air passage 31 is narrowed at this portion, the cool air blown out from the outlet 32 is straightened, and the flow velocity is increased.

The cool air discharged or blown into the storage chamber 9 finally circulates back from the cool air inlet 13 into the duct 11 (indicated by arrows in FIGS. 2 and 3).

As described above, in the present invention, the cool air rising in the duct 11 is supplied to the cool air passages 31 in each of the shelf devices 2.
, And blows out downward from the outlets 32 at the front end, so that the cool air curtains are formed one after another in the opening of the storage room 9 while the outlets 32.・ ・ Cool air can be supplied to the surroundings of the above products, and the cooling capacity in the storage room 9 can be significantly improved.

In particular, since the cool air passage 31 is formed between the shelf plate 3 and the reinforcing plate 23 of the shelf device 2, the cool air passage is formed in the shelf device 2 by utilizing a so-called movable shelf and the structure of the reinforcing plate 23. Can be formed. As a result, the product delivery work is improved, and
It is possible to improve the cooling effect on each shelf 3 while improving the strength when the shelf 3 is pulled out by the reinforcing plate 23.

Further, a through hole 33 is formed in the partition plate 8 corresponding to the rear end of the cold air passage, and the outlet 32 is formed between the front end of the shelf plate 3 and the front end of the reinforcing plate 23. The structure of the device 2 can be extremely simplified, and the cost of parts can be reduced and productivity can be improved.

Further, since the shelf 3 is made of a material having good thermal conductivity as described above, the products on the shelf 3 are directly transferred from the shelf 3 cooled by the cool air flowing through the cool air passage 31. Is also cooled by

[0034]

As described above in detail, according to the present invention, the storage room and the duct are formed by partitioning the inside of the heat insulating wall opened to the front surface with the partition plate, and the cooler disposed in the duct. Cooled air is supplied to the storage room by a blower, and in the open room where a plurality of shelves are provided, a cool air passage is formed in each of the shelves, and a rear end of the cool air passage is provided. And the front end of the cool air passage was communicated with the outlet formed on the lower surface of the front of the shelf device, so that the cool air flowing through the duct was introduced into the cool air passage in each shelf device, and from the outlet at the front end. Each can be blown downward.

With this, it is possible to supply cool air to the surroundings of the products on the respective shelves below the outlet while forming cool air curtains one after another in the opening, thereby remarkably increasing the cooling capacity in the storage room. It is something that can be improved.

In particular, the shelf device includes left and right brackets fixed to a support, rails attached to each bracket,
The shelf is made of a shelf plate that can be moved back and forth by the rails, and a reinforcing plate attached between brackets at a predetermined interval below the shelf plate. Since the passage is formed, a cool air passage can be formed in the shelf device by utilizing the structure of a so-called movable shelf and its reinforcing plate.

[0037] Thereby, it is possible to improve the cooling effect on each shelf device while improving the work of dispensing commodities and improving the strength when the shelf plate is pulled out by the reinforcing plate. Things.

According to the second aspect of the present invention, in addition to the above, a through hole is formed in the partition plate corresponding to the rear end of the cold air passage, and the outlet is provided at the front end of the shelf plate and the front end of the reinforcing plate. Since the structure is provided between the shelves, the structure of the shelf device can be extremely simplified, and the cost of parts can be reduced and the productivity can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of an open showcase of the present invention.

FIG. 2 is a vertical sectional side view of the open showcase of the present invention.

FIG. 3 is an enlarged cross-sectional view of the open showcase of the present invention in a shelf device portion.

FIG. 4 is another enlarged cross-sectional view of the open showcase of the present invention on a shelf device portion.

FIG. 5 is a longitudinal sectional front view of the open showcase of the present invention in a shelf device portion.

FIG. 6 is a plan cross-sectional view of the open showcase of the present invention of a shelf device portion excluding a shelf board.

FIG. 7 is an enlarged plan view of the open showcase of the present invention with a stopper portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Open showcase 2 Shelf device 3 Shelf 6 Heat insulation wall 8 Partition plate 9 Storage room 11 Duct 14 Cooler 16 Blower 22 Bracket 23 Reinforcement board 24 Slide rail 26 Shelf support 31 Cold air passage 32 Blow-out hole 33 Through-hole

Continued on the front page (72) Inventor Toshiaki Kubota 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Taro Ogawa 2-5-2-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. A storage room and a duct are formed by partitioning the inside of a heat insulating wall opened on the front surface with a partition plate, and cool air cooled by a cooler disposed in the duct is blown by the blower into the storage room. In the open showcase provided with a plurality of shelves in the storage room, each of the shelves, the left and right brackets locked to a column, a rail attached to each bracket, The shelf is configured to be able to move back and forth by a rail, and a reinforcing plate attached between the brackets at a predetermined interval below the shelf, and is provided between the shelf and the reinforcing plate. An open show case, wherein a cool air passage is formed, and a rear end of the cool air passage communicates with the duct, and a front end of the cool air passage communicates with an air outlet formed in a lower surface of a front portion of the shelf device. . 2. The partition plate according to claim 1, wherein a through hole is formed corresponding to a rear end of the cool air passage, and an outlet is formed between a front end of the shelf plate and a front end of the reinforcing plate. Open showcase.