JP2709031B2 - Open showcase - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open showcase having an automatic winding type night cover.

[0002]

2. Description of the Related Art Japanese Utility Model Publication No. 60-5348 (F25D)
On 23/02), a cool air curtain is formed at the front opening of the storage room formed in the heat insulating wall, and a film of a self-rewinding type provided on the upper outside of the opening is provided outside the cool air curtain as necessary. In the open showcase that is extended and attached to the cooler and the blower, it opens on the low-pressure side of the cool air passage that is leeward of the inlet of the cool air curtain to remove dew from the cooler and the film. A drain hole for discharging to the outside is provided, and when the film is unfolded, the lower end of the film is located directly above the suction port, and is spaced more inward than the upper inner surface of the front wall of the heat insulating wall. An open showcase is shown in which the lower end of the film faces the suction port so as to be positioned.

[0003]

According to the above-mentioned prior art, the dew treatment of the film surface and the attachment of the lower end of the film become good. However, as shown in FIG. 4, a storage room is provided above the front wall 2A of the heat insulating wall. When the transparent plate 16 is provided to allow see-through and reduce the overflow of the cool air curtain A, the locking member at the lower end of the film 23 cannot be locked near the suction port 11. An elongate stopper 19 is mounted on the suction plate that covers the
Although the structure in which the locking tool 25 is locked by being positioned above the upper end of 6 has been adopted, there is a problem that the locking tool 19 partially deteriorates the see-through effect of the transparent plate 16 in such a structure. There was a problem that the customer's clothes caught on the stopper 19.

[0004] It is an object of the present invention to solve the above problems.

[0005]

According to the present invention, there is provided, as a means for solving the above-mentioned problems, a structure in which a front wall having an opening closed by an air curtain and a front wall of a partition plate defining a storage room are provided. A suction port formed to suck in the airflow forming the air curtain, a sash formed over substantially the entire width of the storage room covering the upper edge of the front wall, and an opening to cover the air curtain. A night cover of an automatic winding type provided at a lower end of the night cover, a locking device also provided as a handle provided at a drawing end of the night cover, and a lower end of the locking device protruding forward and engaging with a lower end of an inner wall of the sash. A configuration having a locking portion to be stopped was adopted.

[0006]

With the simple operation of merely locking the forwardly protruding locking portion provided at the lower end of the locking device also serving as the handle of the night cover to the lower end of the inner wall of the sash, the night cover is fixed in an expanded state. Can be.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1 and FIG. 2, reference numeral 1 denotes an open showcase comprising a heat insulating wall 2 having an opening 3 for storing and taking out goods on its front surface. The partition plate 4 is disposed at an appropriate distance from the inner wall of the heat insulating wall 2 to form a circulation passage 5 for installing a cooler 7 and a blower 8 and a storage room 6 having a shelf 9. Along the upper and lower ends of the opening, the outlet 10 and the inlet 1
1 is formed, and the cool air that has been heat-exchanged by the cooler 7, that is, the cool air, is forcibly circulated by the blower 8 to form the low-temperature air curtain A in the opening 3, thereby cooling the storage room 6. 12
Is a drain hole formed in the bottom wall 2B of the heat insulating wall, located on the windward side of the cooler 7 and the blower 8 and on the leeward side of the suction port 11, that is, on the low pressure side which is the return area of the circulation passage 5. A drain pipe 13 for guiding dew of the cooler 7 and dew adhering to the surface of the night cover, which will be described later, to the outside is connected. The suction port 11 is formed between the front wall 2A of the heat insulating wall 2 and the front wall 4A of the partition plate, and is provided with a large number of suction ports so that articles do not fall into the circulation passage 5 through the suction port. 14 is covered with a metal suction plate 15.

Reference numeral 16 denotes a transparent plate made of glass provided upright on the upper portion of the front wall 2A. The transparent plate 16 is provided to reduce the overflow of cool air reaching the inlet 11 through the opening 3.
With the provision of this transparent plate 16, the air curtain A
The refrigeration load at the opening 3 can be reduced even if the contact area between the air and the outside air is reduced. 17 is the transparent plate 16
A sash with an elongated U-shaped cross section covering the upper edge of the transparent plate 16 acts as a handrail and also acts to reduce the impact of the upper edge of the transparent plate 16. Reference numeral 20 denotes a metal bumper rail provided on the upper portion of the front wall 2A. The lower end is connected to a front panel 22 that covers the front surface of the front wall 2A.
With an acute angle θ. In other words, since the upper surface of the bumper rail is a sloped wall 21 which is lowered forward, when an impact is applied, the upper end of the bumper rail is set to the transparent plate 1.
6 is slightly deformed by sliding upward on the surface to reduce the impact.

Reference numeral 23 designates a flexible plastic sheet or film or the like, and the upper end serving as a fixed end is provided outside the upper part of the opening via a support 24, that is, a self-winding automatic return type, that is, an automatic winding. FIG. 3 shows a state in which the night cover is opened by pulling downward a grip 25 serving also as a pull-out end, which is provided at the lower end of the night cover when the store is not operating, such as at night. As shown in FIG.
By locking a locking portion 25A provided at the lower end of the sash 17 to the lower end of the inner wall of the sash 17, the opening 3 provided outside the air curtain A is covered. In this state, the night cover 23 does not loosen due to the automatic return force acting on the night cover 23.

Further, since the sash 17 is covered on the upper edge of the transparent plate 16 through the rubber or resin packing 30, a gap is formed between the lower end of the inner wall 18 of the sash 17 and the inner surface of the transparent plate 16. The locking member 2 of the formed night cover 23
5 can be locked to the lower end of the inner wall 18. 31 is an electric heater for heating the sash 17. According to such a configuration, since the upper end of the transparent plate 16 is located above the suction port 11, the transparent plate 16 acts to prevent the diffusion of the cool air whose flow velocity downstream of the air curtain A decreases and to guide the cool air to the suction port.
As a result, contact between the cool air downstream of the air curtain A, which is a turbulent region, and the outside air is prevented by the transparent plate 16, and the refrigeration load at the opening 3 can be reduced.

Further, since the sash 17 covering the upper edge of the transparent plate 16 acts as a stopper for locking the locking member 25 of the night cover 23, the locking by the provision of the transparent plate 16 is performed. The adverse effect of the operation of the tool 25 can be eliminated.

[0012]

According to the above configuration, it is not necessary to provide a special stopper on the sash, and it is possible to prevent a customer or an employee from being accidentally injured by the stopper.
Also, with the night cover expanded, the night cover can be fixed by a simple operation of merely locking the forwardly protruding locking portion provided at the lower end of the locking device also serving as a handle to the lower end of the inner wall of the sash. Can be. Further, since the sash is formed over substantially the entire width of the storage chamber, it is not necessary to position the locking portion.

[Brief description of the drawings]

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

FIG. 2 is a sectional view taken along the line BB of the open showcase of the present invention.

FIG. 3 is an enlarged view of FIG. 2A of the present invention.

FIG. 4 is a longitudinal sectional view of a main part of a conventional open showcase.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Open showcase 2 Insulated wall 2A Front wall 3 Opening 4 Partition plate 4A Front wall 6 Storage room 11 Suction port 16 Transparent plate 17 Sash 19 Stopper 23 Night cover 25 Locker A Air curtain

Claims (1)

(57) [Claims] 1. An air inlet formed between a front wall having an opening closed by an air curtain and a front wall of a partition plate defining a storage room, the air inlet forming the air curtain, and A sash formed over substantially the entire width of the storage room covering the upper edge of the front wall, an automatic winding night cover provided to extend over the opening to cover the air curtain, and a drawer of the night cover An open showcase comprising: a locking device provided at one end for a handle; and a locking portion provided at a lower end of the locking device and protruding forward and locked to a lower end of an inner wall of the sash.