JPH10272041A - Open show case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively prevent the generation of dew formation on a main body in an open show case having a night cover on an opening part of a storage chamber, by structuring a locking part for locking a drawer tip end of the night cover on an outside of a storage chamber, and forming the air holes on a part corresponding to the outside of the storage chamber, of the night cover. SOLUTION: A top table 12 is mounted on an upper part of a rear wall 11A of a heat insulating wall 11, and a winding and storing part 24 for winding and storing a night cover 25, is mounted on a lower part of a ceiling plate 13 projecting at a front edge of the top table 12. The night cover 25 covers an opening part 19 of a storage chamber when a shop is closed, or the like, for preventing the wasteful outflow of the cold air, and a locking claw 27 mounted on a drawer tip end of the night cover 25, is locked with a locking part 28 arranged on a hand rail 21. Further the air is passed through plural comparatively large air holes formed on the point edge side of the night cover 25 at specific intervals, by the natural convection, so that the generation of the dew formation on an outer face of a glass plate 20 and the surface of the hand rail 21, covered by the night cover 25, can effectively be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open showcase provided with a night cover for covering an opening of a storage room.

2. Description of the Related Art Conventionally, open showcases installed in stores such as supermarkets and convenience stores include, for example, Japanese Utility Model Laid-Open No. 5-28254 (A47).
F3 / 04), a pull-out cover called a night cover (hereinafter referred to as a night cover) is attached. And when the store closes,
By pulling out this night cover and covering the opening,
Preventing or reducing the outflow of cool air from the opening, energy saving and improvement of cooling capacity were attempted. In such a case, a winding storage section of the night cover is provided on the rear wall side of the main body,
An engaging portion is provided below the outside of the glass plate so as to cover the glass plate erected on the front wall. Then, by pulling out the night cover from the winding storage portion and locking the drawing tip to the locking portion, the night cover is brought into contact with the upper end of the glass plate erected on the main body side plates and the front wall, thereby ,
The opening of the storage room was sealed.

However, in this configuration, the night cover is locked by the locking portion with the glass plate erected on the front wall of the main body in a state where the leading end of the night cover is locked by the locking portion. The outside air is sealed in the space with the night cover (outside the storage room). On the other hand, the glass plate standing on the front wall of the main body is cooled by the cool air of the storage room, and the air enclosed in the space between the night cover and the glass plate is cooled by cooling from this glass plate, and the air in the air is cooled. Moisture has condensed on the outer surface and the front wall of the glass plate, and there has been a problem that the dew condensation stains the area around the open showcase. The present invention has been made to solve such a conventional technical problem, and has as its object to provide an open showcase that can effectively prevent the occurrence of dew condensation on a main body caused by covering with a night cover. And

According to a first aspect of the present invention, there is provided an open showcase comprising a storage chamber in a main body and a night cover provided in an opening of the storage chamber. A locking portion for locking the drawing tip of the night cover outside the storage room is formed, and the night cover is separated into the storage room side and the storage room outside with the drawing tip locked by the locking portion. Further, a vent hole is formed in a portion corresponding to the outside of the storage room. The open showcase according to the second aspect of the present invention includes the glass plate erected on the front wall of the main body, the locking portion is located outside the storage room of the glass plate, and the night cover is locked. In a state where the leading end of the drawer is locked by the portion, the upper end of the glass plate comes into contact with the upper end of the glass plate, and is separated from the storage room side and the storage room outside with the glass plate as a boundary. In the open showcase according to a third aspect of the present invention, in each of the above aspects, the night cover is made of a moisture-permeable material.

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a longitudinal side view of an open showcase 10 of the present invention, FIG. 2 is a plan view of a night cover 25,
3 is an enlarged vertical sectional side view of the upper end of the front wall 11B of the open showcase 10, and FIG. 4 is an enlarged view of a leading end of the night cover 25 covering the open showcase 10, respectively. The open showcase 10 is, for example, a flat-type refrigerated showcase that is installed in a store such as a supermarket, and has a main body composed of a heat insulating wall 11 opened to the upper surface and a side plate (not shown). A partition plate 14 is attached to the inside of the heat insulating wall 11 at intervals, a duct 15 is provided between the heat insulating wall 11 and the partition plate 14, and a storage room 16 is formed inside the partition plate 14. A deck pan 17 is attached to the bottom of the storage chamber 16, and a bottom duct 18 communicating with the duct 15 is formed below the deck pan 17. A blower F and a cooler E constituting a cooling device are installed in the bottom duct 18. Further, a handrail 21 is attached to the upper end of the front wall 11B of the heat insulating wall 11 over the entire width, and the handrail 21 is provided with a locking portion 26,
A locking claw 27 provided on a night cover 25 described later is configured to be lockable. Further, a transparent glass plate 20 is erected inside the handrail 21 at the upper end of the front wall 11B of the heat insulating wall 11 located in front of the upper opening 19 of the storage room 16, and this glass plate 20 is connected to the side plate. They are configured at the same height. The discharge port 2 is provided inside the upper edge of the rear wall 11A of the heat insulating wall 11 located behind the opening 19 of the storage chamber 16.
2 are formed, and the discharge port 22 communicates with the duct 15. A suction port 23 is formed at the upper edge of the front wall 11B inside the glass plate 20.
Communicates with the bottom duct 18. When the blower F is operated, the air in the bottom duct 18 is cooled by exchanging heat with the cooler E, and then blown out toward the rear duct 15, and is discharged from the discharge port 22 to the suction port 23. It is blown out toward. Thereby, the opening 1 of the storage room 16
9, a cool air curtain is formed to prevent or suppress the intrusion of outside air into the storage chamber 16 from the opening 19, and a part of the cool air curtain circulates in the storage chamber 16 and Is cooled. Then, the cool air returns from the suction port 23 to the bottom duct 18 and is sucked into the blower F again. 29 is the front wall 1 of the heat insulating wall 11.
1B is a decorative panel attached to a lower part of the front surface. On the other hand, the top table 1
2 is attached, and a top plate 13 inclined forward and low at the front end is provided at the front end of the opening 19 over the entire width. At the lower part of the top plate 13, a take-up storage part 24 for winding and storing the night cover 25 is also mounted over the entire width of the opening 19. An automatic take-up mechanism such as a torsion bar (not shown) is provided in the take-up / storage portion 24, whereby the pulled-out night cover 25 is automatically wound and stored. The night cover 25 covers the opening 19 of the storage room 16 at the time of closing a store where goods are not delivered to the storage room 16 and prevents unnecessary cool air from flowing out from the opening 19. It is constituted by a sheet material or the like obtained by laminating a heat insulating film on one or both surfaces of a base material made of the above. A hard portion 25 is provided at the leading end of the night cover 25.
B is formed at substantially the center of the hard portion 25B.
7 and a handle 28 are provided, and a locking claw 27 is configured to be lockable on a locking portion 26 provided on the handrail 21. Note that the handle 28 is for pulling out the night cover 25 wound around the winding storage section 24. A plurality of relatively large ventilation holes 25A... Are provided at predetermined intervals on the tip side of the night cover 25. From the surface to the surface by natural convection. In this case, the ventilation holes 25A are located outside the storage chamber 16 as described later in a state where the opening 19 of the storage chamber 16 is covered by the night cover 25 (FIG. 2).
(Between the line L and the locking claw 27). That is, the ventilation hole 25A is not formed in the night cover 25 outside the storage room 16, but a plurality of ventilation holes 25A are provided in the night cover 25 outside the storage room 16. The air holes 25 </ b> A are configured to allow the air enclosed in the space between the glass plate 20 and the night cover 25 to pass therethrough. With the above configuration, when the store is opened, the night cover 25 is pulled out from the winding storage portion 24 by holding the handle 28 by hand as shown in FIGS. By freely locking, the opening 19 of the open showcase 10 is covered with the night cover 25. This prevents useless outflow of cool air from the opening 19. In a state where the opening 19 of the storage room 16 is covered with the night cover 25 and the locking claw 27 is locked to the locking portion 26, the upper end of the glass plate 20 erected on the upper part of the front wall 11 </ b> B of the storage room 16. , The line L of the night cover 25 contacts. The inside of the storage room 16 is cooled while the opening 19 is covered by the night cover 25, and the plurality of ventilation holes 25A provided in the night cover 25 are formed outside the storage room 16 as described above. Is ventilated in a space surrounded by the glass plate 20 and the night cover 25. Therefore, even when the outer surface of the glass plate 20 and the upper surface of the handrail 21 are cooled by heat conduction from the glass plate 20 due to the cooling in the storage room 16, the glass plate 20 and the night cover 25 are cooled.
Between the ventilation holes 25 formed in the night cover 25.
Outside air is circulated from A .... As a result, it is possible to effectively prevent the occurrence of dew condensation on the outer surface of the glass plate 20 or the surface of the handrail 21 covered with the night cover 25, and to contaminate the surroundings of the open showcase due to dew water. Can be prevented beforehand. At the time of opening the store, the user holds the handle 28 of the night cover 25, which is locked by the locking portion 26 of the handrail 21, and removes the locking claw 27 from the locking portion 26. As a result, the night cover 25 is automatically wound and stored in the winding storage section 24, and the opening 19 of the storage chamber 16 is opened. As described above, since the night cover 25 is provided with a plurality of ventilation holes 25A at portions corresponding to the outside of the storage room 16, the night cover 25 covers the opening 19 of the storage room 16 when the night cover 25 covers the opening portion 19. A plurality of ventilation holes 25A provided in the cover 25
Is located outside the storage room 16 so that the space between the outside of the glass plate 20 and the night cover 25 can be ventilated. As a result, the outer surface of the glass plate 20 and the handrail 21
It is possible to prevent the occurrence of condensation on the surface,
Since the night cover 25 inside the storage chamber 16 is not provided with the ventilation hole 25A, the sealing property of the opening 19 is also ensured. FIG. 5 shows another embodiment of the present invention. In this case, the same reference numerals (the ventilation holes 25A,..., The hard portions 25B, the locking portions 26, the locking claws 27, and the handles 28) have the same configuration as the night cover 25 described above. The night cover 30 is made of a water-permeable material having extremely small water holes 30A. Are formed so as to prevent passage of air and allow only moisture to pass therethrough, and to condense dew formed on the outer surface of the night cover 30 into the storage chamber 16. That is, the night cover 30 is provided with the water holes 30 for preventing condensation.
.. Are perforated on the entire surface, and the water condensation holes 30 formed on the outer surface of the night cover 30 due to the cooling in the storage room 16 are formed.
A diverge into the circulating cool air from A ..., thereby preventing the night cover 30 from dew condensation.

As described above in detail, according to the present invention, a locking portion for locking the drawing end of the night cover is formed outside the storage chamber, and the locking portion is locked with the drawing end. In the open showcase in which the night cover is separated into the storage room and the outside of the storage room, since the ventilation holes are formed in the night cover at the portion corresponding to the outside of the storage room, the night cover covers the opening of the storage room. In this state, it is possible to secure ventilation to the area covered by the night cover in the part outside the storage room, and to effectively prevent or suppress the occurrence of dew condensation on the main body and the night cover of the part. Become.
This makes it possible to prevent or reduce the contamination around the open showcase due to the dew condensation water. In particular, no ventilation holes are formed in the night cover in the portion on the storage chamber side, so that the sealing performance of the opening is also ensured. According to the invention of claim 2, in addition to the above, the night cover comes into contact with the upper end of the glass plate particularly erected on the front wall of the main body. In the open showcase to be isolated, ventilation to the outer surface and the front wall surface of the glass plate covered with the night cover can be secured, and the occurrence of dew condensation on the portion can be effectively prevented or suppressed. It becomes something. Furthermore, according to the third aspect of the present invention, since the night cover is made of a moisture-permeable material, in addition to the above, dew formed on the surface of the night cover can be effectively diffused into the storage room. It becomes something.

[Brief description of the drawings]

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

FIG. 2 is a plan view of a night cover.

FIG. 3 is an enlarged vertical sectional side view of an upper end portion of a front wall of the open showcase.

FIG. 4 is an enlarged view of a leading end of a night cover that covers an open showcase.

FIG. 5 is a plan view of a night cover according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Open showcase 11 Insulated wall 11A Rear wall 11B Front wall 14 Partition plate 15 Duct 16 Storage room 18 Bottom duct 19 Opening 20 Glass plate 21 Handrail 22 Discharge port 23 Suction port 24 Winding storage part 25 Night cover 25A Vent hole 25B Hard part 26 Locking part 27 Locking claw

Claims (3)

[Claims] 1. An open showcase in which a storage room is formed in a main body and a night cover is provided in an opening of the storage room, wherein an engaging portion for locking a leading end of the night cover outside the storage room. While constituting a stop, the night cover,
The drawer tip is locked to the locking portion and is separated into the storage chamber and the storage chamber, and a vent hole is formed in a portion corresponding to the storage chamber. And open showcase. 2. A glass plate provided upright on the front wall of the main body, the locking portion is located outside the storage chamber of the glass plate, and the night cover has a drawing tip locked by the locking portion. 2. The open showcase according to claim 1, wherein, in the state, the upper surface of the glass plate is in contact with the upper end of the glass plate and is separated into the storage room and the storage room outside with the glass plate as a boundary. 3. The open showcase according to claim 1, wherein the night cover is made of a moisture-permeable material.