JP2015036037A - Open showcase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an open showcase in this embodiment which can collect foreign matters falling from a suction port cover by a filter alone and can have a simplified structure.SOLUTION: An open showcase includes: a ventilation passage formed by suctioning air from a suction port provided in a display chamber for displaying commercial products in a showcase body, circulating the air in a cooler and an air blower arranged in the showcase body, and blowing out the air from an air curtain outlet provided in the display chamber; a suction port cover which covers the suction port and has a hole part allowing the circulation of the air; and a filter which is arranged below the suction port cover to face it for capturing dust entering the ventilation passage in the showcase body from the hole part of the suction port cover. The suction port cover is detachably attached to the suction port. The filter has the cross section formed into a substantially L shape to hold the foreign matters falling to the ventilation passage through the hole part of the suction port cover and is detachably attached to the ventilation passage.

Description

  Embodiments of the present invention relate to an open showcase having a display room for displaying products.

  In open showcases that display products that require cooling, in order to prevent air from entering the display room and cool the products inside, cool air is blown downward from the top front of the display room through the ventilation path. The cold air is sucked in by a suction port provided on the front surface of the bottom of the head. Furthermore, the suction port is detachably covered with a suction port cover having a hole, and a filter is provided in the ventilation path facing the suction port to capture dust mixed in the cold air.

  For example, a foreign object such as a price card may fall from the hole of the suction port cover to the ventilation path. At this time, the suction port cover must be removed to open the suction port, and the fallen foreign matter must be removed using a long disposable chopstick. Since the suction port is only a narrow space in the front and back, it takes time and labor. In view of this, Patent Document 1 discloses an invention that can reliably prevent the entry of foreign matter into the ventilation path.

JP 2005-34304 A

  In this case, a substantially box-shaped dust receiving portion is provided detachably with respect to the showcase body. The dust receiving portion receives dust or the like falling from a filter provided on the back side, but can also receive foreign matter falling through the hole portion of the suction port cover.

  However, the dust container has to be manufactured in a substantially box shape in which each surface except for the upper surface portion facing the suction port cover and the rear surface portion facing the filter is surrounded by a plate material, which has an adverse effect on cost. Further, it takes time to attach and detach the filter and the dust container to / from the showcase body, and a space is left in the place where the filter and the dust container are removed, which obstructs the work.

  In addition, it is desirable from the viewpoint of cooling efficiency to suck in as much air as possible at the suction port. However, since the dust receiving portion is provided in the ventilation path, the ventilation path is narrowed and also becomes ventilation resistance.

  Under such circumstances, there is a demand for an open showcase that can easily collect foreign matters falling from the suction port cover, simplify the configuration, improve workability, and improve cooling efficiency.

According to the open showcase of this embodiment, air is sucked from a showcase body provided with a display room for displaying products and a suction port provided in the display room of the showcase body, and is arranged in the showcase body. A ventilation path that circulates through the cooler and the blower and blows out from an air curtain outlet provided in the display room, a suction opening cover that covers the suction opening of the ventilation path and has a hole that allows air flow, and a suction opening A filter that is disposed to face the lower side of the cover and captures dust that enters the ventilation path in the showcase body from the hole of the suction port cover.
The suction port cover is detachably attached to the suction port. The filter is formed in a substantially L-shaped cross section so as to hold a foreign substance falling into the ventilation path through the hole of the suction port cover, and is detachably attached to the ventilation path.

The external appearance perspective view of the open showcase based on this embodiment. The vertical side view of the open showcase based on the embodiment. The disassembled perspective view of the open showcase principal part based on the embodiment. The longitudinal cross-sectional view which expanded the open showcase principal part based on the embodiment. Explanatory drawing at the time of taking out the fallen foreign material based on the embodiment. Explanatory drawing at the time of cleaning the drain hole circumference based on the embodiment.

Hereinafter, the present embodiment will be described with reference to the drawings.
FIG. 1 is an external perspective view of an open showcase, and FIG. 2 is a longitudinal side view of the open showcase.

  The showcase body 1 constituting the open showcase has a substantially rectangular shape in a front view and a plan view. A top plate 2 is provided at the top, a machine room 3 is provided at the bottom, and a display chamber 4 is provided between the top plate 2 and the machine room 3.

  The front view of the top plate 2 is thin in the vertical direction and has a rectangular shape with a predetermined length in the left-right width direction, and the bottom surface of the top plate 2 forms a ceiling portion 4a that becomes the ceiling of the display chamber 4 for displaying products. Yes. A front view of the lower machine room 3 is somewhat thick in the vertical direction and has a rectangular shape with a predetermined length in the left-right width direction, and the upper surface forms a bottom 4 b that becomes the bottom surface of the display chamber 4.

  The front view of the display chamber 4 between the ceiling portion 4a and the bottom portion 4b is sufficiently long in the vertical direction and has a rectangular shape with a predetermined length in the horizontal width direction. Eventually, the showcase body 1 has a predetermined length in the left-right width direction, and the back surface of the showcase body 1 is a showcase body back portion 1a formed of a rectangular heat insulating plate.

  On the other hand, the side view of the top plate 2 has a rectangular shape protruding from the showcase main body back surface portion 1a by a predetermined length. The side view of the machine room 3 has a rectangular shape that protrudes from the showcase main body back surface 1a by a predetermined length slightly longer than the protruding amount of the top plate 2.

  The back wall 4c forming the back wall of the display chamber 4 is formed with a predetermined dimension from the showcase body back surface 1a to the front, and is slightly forward from the upper end to the lower end. Inclined.

  The left and right side walls 5 of the showcase body 1 are each covered with a substantially U-shaped heat insulating plate and a heat insulating glass plate fitted into the U-shaped portion. Therefore, the display chamber 4 is closed at the front surface only by the ceiling portion 4a, the back wall 4c, the bottom portion 4b, and the left and right side walls 5 except for the front surface.

  The back wall 4c of the display chamber 4 is inclined so as to gradually protrude forward from the ceiling 4a to the bottom 4b. A plurality of shelves a are provided on the back wall 4c at predetermined intervals in the vertical direction.

  If it demonstrates, each shelf a will be supported by the back wall 4c, and will protrude ahead, and goods, such as a drink sold, are mounted and displayed on these shelves a. In addition, a price tag (price card) of the placed product is detachably attached to the front end of the shelf. Further, the shelf a can be removed, and the vertical interval between the shelves a can be adjusted by being hooked and fixed in an insertion hole (not shown) provided in the back wall 4c.

The back wall 4c of the display chamber 4 is provided with a plurality of cooling outlets (not shown) as cooling means for the displayed products on each shelf a.
The top plate 2 constituting the ceiling portion 4a of the display room 4 is provided with an illumination unit 6 made of a fluorescent lamp or LED along the front front edge, and the illumination in the display room 4 and the front surface of the top plate 2 are provided. Lighting of the product name drawn on the.

  Furthermore, in order to blow out cool air for preventing the outside air from entering the display chamber 4 from the outside of the showcase main body 1 and cooling the display chamber along the lower surface of the top plate 2, that is, the front end of the display room ceiling 4a. The air curtain outlet 7 is provided.

  The interior of the top plate 2 is hollow, and an air curtain duct 8 for guiding cold air to the air curtain outlet 7 is formed. The base end portion of the air curtain duct 8 communicates with a blower duct 9 described later.

  On the other hand, on the upper surface of the machine room 3 constituting the display room bottom 4b, cold air blown from a cooling air outlet provided in the display room back wall 4c and an air curtain outlet 7 provided in the display room ceiling 4a. A suction port 10 is provided for sucking the air curtain cold air blown out.

  There is no obstacle on the straight line connecting the air curtain outlet 7 and the inlet 10. For this reason, the air curtain cold air blown out from the air curtain outlet 7 is smoothly sucked into the inlet 10 without being disturbed by the shelf a. As a result, the air curtain can be formed stably.

  The suction port 10 is provided at the front end of the bottom 4 b of the display chamber 4 and is covered with a suction port cover 11. A filter 12 is attached to face the suction port 10, and the suction port cover 11, the filter 12, and the display chamber bottom 4 b that form the periphery of the suction port 10 will be described later.

  The suction port 10 described above is opened in the bottom 4b (the upper surface of the machine room 3) of the display chamber 4, and the machine room 3 is provided under the bottom 4b of the display room 4. Inside the machine room 3, a blower 13 and a cooler (evaporator) 14 are arranged. The cooler 14 is connected to a compressor, a condenser, an expansion valve and the like (all not shown) via a refrigerant pipe, and these constitute a refrigeration cycle.

  On the further back side of the display room back wall 4c, the above-described showcase body back surface portion 1a is formed with a space therebetween. The air duct 9 described above is formed in the space between the display room back wall 4c and the showcase body back surface 1a, and communicates with the air curtain duct 8 which is a cavity inside the top plate 2. A part of the cooler 14 protrudes from the machine room 3 to the air duct 9.

  By driving the blower 13, air is sucked into the machine chamber 3 from the suction port 10 as shown by an arrow in FIG. And it is guide | induced to the duct 8 for air curtains from the ventilation duct 9, and it blows out toward the suction inlet 10 from the air curtain blowing outlet 7. FIG. In this way, the ventilation path T is formed.

  The bottom of the machine room 3 is formed so as to be inclined so that the rear side position slightly spaced from the front end is the lowest, and a drain hole 15 is provided at the lowest part. And the drain trap 19 is attached to the machine room 3 outer bottom part of the drain hole 15, and the drain pipe 20 connected here is extended outside from the showcase main body 1 back surface.

FIG. 3 is an exploded perspective view around the suction port 10 which is a main part of the open showcase.
Next, the arrangement of components around the suction port 10 will be described in detail.
The upper surface of the suction port 10 is covered with a suction port cover 11 so as to be freely opened and closed. The suction port cover 11 is provided with a folded side b over the entire circumference of the front, rear, left and right, and is formed on the same flat surface as the display chamber bottom portion 4 b in a state of being attached to the suction port 10.

  Finger suction holes c are provided at both left and right ends of the suction port cover 11. The operator can easily attach and detach the suction port cover 11 by placing his / her fingers on the left and right finger hooking holes c when the suction port cover 11 is attached to and detached from the showcase body 1.

  Between the left and right finger hooking holes cc of the suction port cover 11, there are a large number of holes d that are elongated in the left-right width direction and long in the front-rear direction. It is provided over the entire length in the width direction. Therefore, even if the suction port cover 11 covers the suction port 10, the air flow is allowed to pass through the hole d of the suction port cover 11.

  Filter guides 16 and 16 are attached to the left and right side walls 3a of the machine chamber 3 forming the suction port 10 by bending a plate material and extending downward. With the suction port cover 11 removed from the suction port 10, the filter 12 can be inserted between the filter guides 16 and 16, and the filter 12 is detachably supported by the suction port 10 by the filter guides 16 and 16.

  The filter 12 is formed in a substantially L-shaped cross section, and is surrounded by a wire-like bar material, and the filter material is stretched between these bar materials. That is, the filter material is suspended over the entire surface excluding the surrounding bar portion, and has an L shape. In this embodiment, the filter material is formed of a net-like synthetic resin net, but it is sufficient that the filter material has a structure capable of capturing dust contained in the circulating air.

  A claw portion e is provided at the substantially upper center portion of the upper end, and can be attached to and detached from the machine room 3 by holding this. With the filter 12 attached, the vertical portions f on both the left and right sides are inserted between the fold portions g formed in the respective filter guides 16 and supported. As shown in FIG. 2, the bent lower end h of the filter 12 collides with a position near the bent portion 3d where the front vertical wall 3b forming the front end surface of the machine chamber 3 and the bottom inclined wall 3c are in contact. It ’s locked here.

  Therefore, the movement of the back surface and side surface of the filter 12 is restricted by the filter guides 16, 16, and the lower end is fixed in the vicinity of the bent portion 3 d so that the vertical posture can be maintained, and the ventilation path T formed in the machine chamber 3. Is partitioned by extending vertically and horizontally.

  A partition plate 17 is provided in contact with the left and right filter guides 16 and spans the display chamber bottom 4b in the horizontal direction. The partition plate 17 is formed by bending a horizontally long metal plate material, and is fixed to the left and right side walls 5 with screws or the like.

  The display chamber bottom 4b is divided into a bottom shelf front plate 18a formed on the back side of the suction port cover 11 via a partition plate 17, and a bottom shelf rear plate 18b further on the back side than the bottom shelf front plate 18a. ing. The display chamber bottom 4b located between the bottom shelf front plate 18a and the bottom shelf rear plate 18b is bridged horizontally on the display chamber bottom 4b in the same manner as the partition plate 17, and is screwed to the left and right side walls 5. A horizontally long support plate 18c fixed in the above is provided.

  The rear end of the bottom shelf front plate 18 a is placed on the partition plate 17 and is in contact with the inlet cover 11 via the partition plate 17. The front end of the bottom shelf front plate 18a is placed on the support plate 18c, and the front end of the bottom shelf rear plate 18b is placed on the support plate 18c.

  The left and right end portions of the bottom shelf front plate 18a and the bottom shelf rear plate 18b are placed on a support portion 5a that slightly protrudes inward from the left and right side walls 5 of the showcase body 1. The front and rear dimension of the bottom shelf front plate 18a has only a space for one row of products (for example, beverage plastic bottles) displayed in the display chamber 4, and the bottom shelf rear plate 18b occupies the entire area of the remaining display chamber bottom 4b. Products are displayed.

  The bottom shelf rear 18b is merely placed on the support portion 5a and the support plate 18c, while the bottom shelf front 18a is only placed on the support portion 5 and the partition plate 17. They are both detachable by pulling upwards.

  The support plate 18c supports the rear end of the bottom shelf front plate 18a and the front end of the bottom shelf rear plate 18b because each plate 18a, 18b is formed horizontally long, so that a heavy beverage product is mounted. This is to prevent the center from being bent downward and deformed. And the drain hole 15 demonstrated previously is located in the position just under the bottom shelf 18a.

In the open showcase configured as described above, the compressor is driven and the blower 13 is driven during operation. The refrigerant is compressed by the compressor, led to the condenser as a high-temperature and high-pressure gas refrigerant, and converted into a liquid refrigerant. The liquid refrigerant is further led to the expansion valve, adiabatically expanded, and led to the cooler 14. The blower 13 takes outside air into the machine room 3 through the hole d of the suction port cover 11 disposed at the front end of the machine room 3.
Since the filter 12 is attached immediately below the suction port cover 11, dust contained in the outside air is efficiently captured, and only normal air is guided to the ventilation path T.

  In the cooler T, the refrigerant evaporates by exchanging heat with the air blown from the blower 13. At this time, the latent heat of vaporization is taken from the air to lower the temperature, and the air is changed to cold air. The cool air is guided to the air duct 9, and a part of the cool air is blown into the display chamber 4 from a cooling outlet provided on the back wall 4c of the display chamber 4 to cool the displayed products on each shelf a.

  The remaining cold air that has reached the upper end of the air duct 9 is guided to the air curtain duct 8, which is a cavity inside the top plate 2, and blown out from the air curtain outlet 7. A cold air curtain is formed in the opening formed in the front surface of the display chamber 4 to prevent the intrusion of outside air and cool the products on the shelf a.

  Both the cool air blown from the air curtain outlet 7 and the cool air blown from the cooling outlet are sucked into the inlet 10 through the hole d of the inlet cover 11. That is, since the blower 13 is continuously driven and the suction port 10 is in a negative pressure state, the cold air having the respective functions is mixed and efficiently sucked into the suction port 10, and further into the machine room 3. It is guided to the cooler 14 to be arranged and circulates in the above-described system path.

  Here, the filter 12 installed in the machine room 3 has a substantially L-shaped cross section formed by a filter material, and extends over the entire ventilation path in the machine room 3. For this reason, the ventilation resistance due to the provision of the filter 12 is small, and the air sucked from the suction port cover 11 flows without much resistance to the lower machine chamber, and the amount of ventilation can be increased, thereby cooling the refrigeration cycle. Efficiency is improved.

FIG. 4 is an enlarged longitudinal sectional view of the main part of the open showcase.
For example, a foreign matter P such as a price card attached to the front end of the shelf a drops from the attachment position at the time of management such as replenishment of goods on the shelf a or during normal sales, as shown in FIG. There are things to do.

  When the foreign matter P falls on the suction port cover 11 that covers the suction port 10, the foreign matter P enters the machine chamber 3 through the hole d provided in the suction port cover 11 depending on the size of the foreign matter P. However, since a filter 12 having a substantially L-shaped cross section is attached immediately below the suction port cover 11, all fallen foreign matter P is received by the filter 12.

  That is, the left and right side walls of the suction port 10 and the suction port cover 11 are restricted by the left and right side walls 3 a of the machine room 3, in other words, the left and right side walls 3 a of the machine room 3 are connected to the suction port 10 and the suction port cover 11. Same as the left and right sides.

  The front side walls of the suction port 10 and the suction port cover 11 are restricted by the front vertical wall 3 b of the machine room 3, and the rear end portions of the suction port 10 and the suction port cover 11 are restricted by the partition plate 17. The filter 12 extends in the vertical direction along the partition plate 17 that regulates the rear end portions of the suction port 10 and the suction port cover 11, and the lower end portion is bent forward.

  The tip of the lower end h of the filter 12 is locked in the vicinity of the bent portion 3d formed from the front vertical wall 3b to the bottom inclined wall 3c of the machine room 3, so that the ventilation path T communicating from the suction port 10 is blocked. It is in the position to do. Accordingly, the filter 12 receives all of the foreign matter P falling from the hole portion d of the suction port cover 11 into the ventilation path T.

  When the fall of the foreign material P is witnessed, the foreign material P is immediately removed. Even if it does not notice the fall of the foreign matter P and notices after a while, the foreign matter P does not have to interfere with the cooling effect as an open showcase in the meantime. For example, an accident such as blocking the drain hole 15 does not occur. Just do it.

FIG. 5 is an explanatory diagram when the foreign matter P received by the filter 12 is taken out.
When it is confirmed that the foreign matter P has dropped from the suction port cover 11, the foreign matter P is immediately recovered. Specifically, the suction port cover 11 is removed from the suction port 10. At this time, a finger may be inserted into the finger hooking holes c provided at the left and right ends of the suction port cover 11 and pulled up as it is, and no special tool is required.

  Since the suction port cover 11 is easily separated from the suction port 10, it is placed on the bottom shelf 18a, for example. The suction port 10 is opened and the inside of the machine room 3 inside the showcase body 1 can be seen, and the foreign matter P received by the filter 12 and the filter 12 can be seen, so that the foreign matter P can be easily confirmed.

  Therefore, it is possible to remove the foreign matter P received by the filter 12 by holding the claw e provided at the upper end of the filter 12 and pulling up the filter 12 and holding the position for a short time. Further, since the filter 12 can be removed, it is possible to easily remove dust adhering to the filter 12.

As in the prior art, it is not necessary to look into the suction port using a long disposable chopstick or the like, and a box-like object such as a dust receiving portion is not provided along the filter. By simply forming the filter 12 with a substantially L-shaped cross section, the foreign matter P can be reliably held and easily taken out from the suction port 10, and there is no adverse effect on cost.
Further, since the filter 12 can be completely removed, the dust adhering to the filter 12 can be easily removed.

The filter 12 from which the foreign matter P has been removed is dropped into the suction port 10 again with the claw e. The filter 12 is inserted along the filter guide 16 and locked at a position in the vicinity of the bent portion 3d formed from the front vertical wall 3b of the machine chamber 3 to the bottom inclined wall 3c. To do.
That is, since the filter 12 is set at the normal position shown in FIG. 4 simply by dropping from above, the suction port cover 11 may be covered with the suction port cover 11 again to return to the original state.

FIG. 6 is an explanatory diagram when the periphery of the drain hole 15 is cleaned.
With long-term use, the drain water generated in the cooler 14 becomes slime (jelly-like) and accumulates in the bottom of the machine room 3. It may become dirty and give off a foul odor, which will damage the product image. Therefore, for example, the bottom of the machine room 3 is periodically cleaned.

  At this time, since the bottom shelf front 18a constituting the display room bottom 4b is simply placed, the product placed on the bottom shelf front 18a is removed and then removed to remove the bottom shelf rear 18b. put on top. Then, the suction port cover 11 is removed and placed on the bottom shelf 18a, for example, and the filter 12 is removed and placed on the suction port cover 11.

Eventually, a part of the upper surface of the machine room 3 which is the display room bottom 4b is easily opened, and the drainage hole 15 and its periphery can be seen. Since the slime S adhering to the inner bottom of the machine room 3 is also visible, this is cleaned with a cleaning tool, and all of the slime S is guided to the drain hole 15 and discharged.
After cleaning, the filter 12 is inserted into a predetermined position, and the suction port 10 is covered with the suction port cover 11. After the bottom shelf 18a is attached to a predetermined position, the products may be arranged on this.

  As in the prior art, there is no need to place parts such as a dust receiving portion around the open showcase, and it is not necessary to remove all products on the display chamber bottom 4b. It is only necessary to remove only the front row of products placed on the front of the bottom shelf 18a, and the drain hole 15 can be easily opened and cleaned, improving workability.

  As mentioned above, although this embodiment was described, the above-mentioned embodiment is shown as an example and does not intend limiting the range of embodiment. The novel embodiment can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  4 ... Display room, 1 ... Showcase body, 10 ... Suction port, 14 ... Cooler, 13 ... Blower, 7 ... Air curtain outlet, T ... Ventilation path, d ... Hole, 11 ... Suction port cover, 12 ... Filter, 4b ... bottom of display room, 18a ... before bottom shelf, 18b ... after bottom shelf.

Claims (2)

A showcase body with a display room for displaying products;
A ventilation path that sucks air from a suction port provided in the display chamber of the showcase body, circulates a cooler and a blower disposed in the showcase body, and blows out from an air curtain outlet provided in the display room; ,
A suction port cover that covers the suction port of the ventilation path and has a hole that allows air to flow;
A filter that is disposed facing the lower side of the suction port cover and that captures dust that enters the ventilation path in the showcase body from the hole portion of the suction port cover, and
The suction port cover is detachably attached to the suction port,
The filter is formed in a substantially L-shaped cross section so as to hold a foreign substance falling into the ventilation path through the hole portion of the suction port cover, and is detachably attached to the ventilation path. To open showcase. The suction port is provided in the front of the bottom of the display room,
The bottom of the display chamber is divided into a front of the bottom shelf adjacent to the suction port and a rear of the bottom shelf adjacent to the back side of the bottom shelf,
2. The open showcase according to claim 1, wherein the front of the bottom shelf is formed in a space for one row of display objects to be displayed in the display chamber and is detachably attached to the bottom of the display chamber.

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