JPH05118739A - Open showcase - Google Patents

Abstract

PURPOSE:To simplify mounting work of a night cover, minimize the effect of heat conduction on an air curtain and inhibit dew condensation to mounting components of the night cover. CONSTITUTION:A fluorescent lamp reflection plate 10 is installed to a front side wall 7 of an air outlet 5 which serves as a holder of a cooled air bleeder 6 in such a fashion that the rear side of the plate is placed in contact. The upper part of the rear side is formed in a slanting plane 10b having an angle to the front side wall 7. A night cover holding member 13 which supports the night cover 12 is mounted to this slanting plane 10b with a machine screw 14. A slanting plane engagement space S is used as a release section of the machine screw and the front side wall 7 and the contact portion between the mounting plane of the fluorescent lamp reflection plate 10 is minimized for their mounting structure. This construction makes is possible to minimize dew condensation phenomenon in this area.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open showcase provided with a night cover which is lowered on the outside of an air curtain formed in a front opening when necessary.

[0002]

2. Description of the Related Art In an open showcase that is generally installed in a supermarket or a convenience store, a cover called a night cover is used as an open showcase when it is out of business hours (nighttime, preparations for opening hours, holidays, etc.). It is possible to lower the air curtain flow behind the cover by keeping the cold storage of the goods inside the open showcase effectively by preventing the outside air from entering the open showcase with the cover. As a result, there is an advantage that energy saving in refrigeration operation can be achieved.

Japanese Utility Model Publication No. 40-8630 discloses an open showcase having a night cover of this type. According to the gazette, there is an inner / outer double cold air passage, and cool air flows from the upper cool air outlet of each of the cold air passages toward the lower cold air suction port, and the inner and outer two-layer air curtains are It is formed in the front opening of the open showcase.
And the night cover has an upper half surface and a lower half surface that are wound around the core portion, and when extended, they extend upside down,
When wound, it is automatically returned to the core by winding, and when not in use, the wound night cover is fixed to a support provided near the outside cool air outlet. ..

Here, the conventional fastening method of the night cover has a structure as shown in FIG. FIG. 4 is a side sectional view showing the main part of the upper part of the open showcase.
Is an upper wall of the open showcase body constituted by a heat insulating wall, and a cool air duct 2 through which cool air passes is formed below the partition plate 4 on the storage chamber 3 side along the wall.
A cold air blower 6 having a honeycomb structure is attached to a cold air outlet 5 at the tip of the cold air duct 2. Since this cool air blower 6 is installed to extend in the longitudinal direction along the blower outlet 5, it is supported by the support portion 7a at the lower end and between the tip end bent surface 4a of the partition plate 4. It requires a plate-shaped structural component 7 to be held and fixed.

The structural component 7 also serves as a cold air duct component for forming the air outlet 5 by the tip bent surface 4a of the partition plate, and constitutes the front wall of the cold air outlet 5. The front part of the structural component 7 has a rear vertical surface 10a.
A fluorescent light reflector 10 is provided which is attached to and fixed to the fluorescent light reflector hanging metal fitting 9 with a screw or the like, and the vertical surface 10a is used to form the night cover 12 and the night cover holding member 13. Are attached with screws 14 or the like. Here, the structural component 7 is formed with a recess 15 for the escape of the screw 14, and the component 7 is forced to have a complicated shape. The night cover 12 wound around the sash piece 16 which also serves as a pull-out handle is held in the night cover holding member 13 and is lowered when the opening is covered to remove the sash piece 16. It is stretched by hooking it on an appropriate locking portion at the lower edge of the opening.

Reference numeral 18 is a fluorescent lamp and 19 is an exterior panel. The exterior panel 19 is attached and fixed to the upper cover 9 with screws 20. And the night cover 12
Is a part that is optionally attached, so the night cover 12 and the night cover holding member 13 are attached and installed locally. As shown in FIG. 5, the screw 20 is removed, the exterior panel 19 is removed, a screwdriver 22 is inserted through a working hole 21 provided in the fluorescent lamp mounting plate 10, and the screw 14 is stopped. .. Reference numeral 20a is a mounting hole for the screw 20.

[0007] Further, the automatic winding type night cover 12 may have a winding recovery function deteriorated due to long-term use and may need to be replaced or may be damaged. It is replaced and installed. Furthermore, since the vertical surface 10a of the fluorescent light reflector 10 is in contact with the component 7 in a low temperature condition over a wide area, the vertical surface 1a is thermally transferred.
Condensation occurs on 0a. Therefore, a heater 22 is installed to prevent this dew condensation. Also, instead of the heater 22, a heat insulating material is attached.

[0008]

However, the above-mentioned conventional device requires a structural member having a complicated shape, a heater, etc., resulting in an increase in cost and a complicated installation of the night cover. The present invention solves the above points, simplifies the shape of structural parts and simplifies the mounting work, and reduces the cost by eliminating the heater or the heat insulating material, or reduces the heater capacity and the running cost. It is designed so that

[0009]

According to the present invention, there is provided a night cover for covering a front portion of an air curtain, which is formed in a front opening of a storage chamber from an upper cool air outlet toward a lower cool air inlet, at a non-business time, and the blower. A fluorescent lamp reflector attached to the front wall of the outlet with the rear surface thereof attached, and a night cover holding member for holding the night cover wound on the inside surface of the rear surface of the fluorescent lamp reflector when not in use. In an open showcase including the above, an inclined surface that inclines forward is provided above the rear surface of the fluorescent light reflector, and the night cover holding member is attached to this inclined surface.

[0010]

The fluorescent lamp reflector provided in front of the cool air outlet forms a frontwardly inclined surface on a part of its rear surface to form a space between it and the vertical front wall of the cool air outlet. Then, the night cover holding member is fixed to this inclined surface, and the space is useful for the escape portion of the fixing screw or the like.

Since the fluorescent lamp reflection plate comes into contact with the front wall of the cool air outlet only at the surface hanging down from the inclined surface,
There is little heat conduction from the cold air duct, dew condensation on the fluorescent light reflector can be suppressed, and conventional heaters for dew condensation prevention etc. are unnecessary,
The structure can be simplified and the manufacturing cost can be reduced.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. It should be noted that the same components and equivalent parts as in the prior art are designated by the same reference numerals.

In the fluorescent lamp reflector 10, a part of the rear surface on which the night cover 12 and the night cover holding member 13 are mounted is inclined forward with respect to the vertical front wall 7 of the cool air outlet 5 at an appropriate angle. Form on the surface 10b. Further, also in the night cover holding member 13, the shape of the mounting surface 13b thereof is matched with that of the inclined surface 10b. By doing this, the front wall 7 and the fluorescent light reflector 10 which are the structural components that constitute the cool air duct 2 and hold the cool air blowing body 6.
The contact area of the fluorescent lamp becomes small, and the fluorescent lamp reflector plate 1 by heat conduction
The influence that the surface temperature of 0 becomes lower than the dew point temperature of the ambient air and dew condensation occurs can be suppressed as much as possible.

A clearance space S for the screw 14 for mounting the night cover 12 and the night cover holding member 13 is provided.
Can be secured, and the shape of the structural parts can be simplified. Further, when the night cover 12 is attached as an optional part on site, it is possible to operate the driver 22 diagonally to tighten the screw 14 without removing the exterior panel 19 as shown in FIG. The night cover 12 can be easily attached. FIG. 3 shows a state in which the night cover 12 thus attached is pulled down to cover the front opening of the open showcase 30.

[0015]

As described above, according to the present invention, the night cover mounting surface of the fluorescent light reflector is an inclined surface that is angled to the front wall that is perpendicular to the cold air outlet, and the fluorescent light reflector is the front surface. Since the structure is such that the contact with the wall is minimized, the dew condensation on the reflection plate can be effectively suppressed, and the dew condensation prevention heater can have a small capacity and can be dispensed with, thereby reducing the cost.

Since the night cover holding member is attached to the mounting surface inclined forward, not the conventional vertical mounting surface which is almost entirely in contact with the front wall of the cool air outlet, the night cover is mounted. Will be easier.

[Brief description of drawings]

FIG. 1 is a side sectional view of an essential part for explaining a night cover mounting structure of the present invention.

FIG. 2 is a perspective view of a work explaining how to attach a night cover.

FIG. 3 is an external perspective view of the open showcase showing a state in which the night cover is pulled down.

FIG. 4 is a side sectional view of an essential part showing a conventional night cover mounting structure.

FIG. 5 is a perspective view of a work explaining how to install a conventional night cover.

[Explanation of symbols]

 2 Cold air duct 6 Cold air blower body 7 Structural parts 10 Fluorescent light reflector plate 10b Inclined surface 12 Night cover 13 Night cover holding member 13b Mounting surface

Claims (1)

[Claims] 1. A night cover for covering the front of an air curtain formed in the front opening of the storage chamber from the upper cool air outlet toward the lower cool air inlet when not in operation, and a rear surface on the front wall of the outlet. Fluorescent light reflector installed by applying
In an open showcase, comprising a night cover holding member that is attached to the inner surface side of the rear surface of the fluorescent light reflector and holds the night cover that is wound up when not in use, the rear surface of the fluorescent light reflector An open showcase, characterized in that an inclined surface that inclines forward is provided on the upper part of the above, and the night cover holding member is attached to this inclined surface.