JPH0611245A - Open show case - Google Patents

Abstract

PURPOSE:To provide an open show case which prevents cool air from leaking between the lower end of a night cover and a heat insulating wall front wall. CONSTITUTION:A cool air-curtain 19 is formed at a front surface opening 1 of a heat insulating wall 2. An automatically wound up type night cover 31 is provided above the opening 1. A fastening tool 32 is provided on the rear surface of a front wall 2A of the heat insulating wall 2. An attaching part 37 which is fastened to the fastening tool 32 is provided on the rear surface of the lower end part 34 of the night cover 31. A handle part 36 is provided on the night cover 31 at a location which is more forward than the attaching part 37. The lower end part 34 of the night cover 31 is bought into contact with the front wall 2A of the heat insulating wall 2 under a condition in which the attaching part 37 is fastened to the fastening tool 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opener having a night cover for protecting a cold air cover at night or on holidays.
It is related to the case.

[0002]

2. Description of the Related Art Conventionally, refrigeration or freezing openers.
In the case, a cold air cart is formed in the front opening so that the customer can easily take out the product, but about 70% of the required refrigerating capacity of the open case is replaced. Since it is an air load, that is, a load caused by the contact of the cool air curtain with the outside air, at night, on holidays, etc., JP-B-60-5348 (F25D23 / 0).
2) or Japanese Utility Model Laid-Open No. 61-107358 (A47).
As shown in F3 / 04), an automatic wind-up type night cover is stretched on the outside of the cold air cover and the cold air cover is protected by closing the opening.

A conventional open casing 100 according to the related art will be described with reference to FIGS. First, in FIG. 9 to FIG. 12, an open casing 100 has a main body 3 composed of a heat insulating wall 2 having an opening 1 in the front surface and having a substantially U-shaped cross section. 4 and insulation wall 2
The partition wall 7 defines a space between the partition wall 7 and the partition wall 7, and a cool air passage 8 is formed between the inner wall 4 and the partition wall 7, and a protective air passage 9 is formed between the partition wall 7 and the heat insulating wall 2.

A cooler 11 and a blower 12 which constitute a well-known refrigeration cycle are arranged in the cold air passage 8, and a blower 13 is arranged in the protective air passage 9. On the other hand, air outlets 14 and 16 are arranged side by side inside the upper edge of the opening 1 of the heat insulating wall 2, and suction ports 17 and 18 are arranged side by side inside the upper part of the front wall 2A of the heat insulating wall 2. ing. The cold air passage 8 communicates with the air outlet 14 and the suction port 17, and the cool air cooled by the cooler 11 by the operation of the blower 12 is blown out from the air outlet 14 toward the suction port 17, thereby opening the opening 1. A cold air curtain 19 is constructed.
In addition, the protective air passage 9 has a blow-out port 16 and a suction port 18.
The air in the protective air passage 9 is blown out from the air outlet 16 toward the air inlet 18 by the operation of the blower 13, whereby the protective air curtain is provided outside the cold air curtain 19 of the opening 1. 21 is configured. Further, part of the cold air cart 19 circulates in the storage chamber 6 to cool the food on the shelf 22 to a predetermined refrigerating or freezing temperature.

An eaves 23 is provided on the outer surface of the heat insulating wall 2 above the opening 1, and a fluorescent lamp 24 is installed in the eaves 23, and a front cover of the eaves 23 is provided with an automatic winding type night cover 101. It is attached. This Night Cover-101
Are arranged side by side in the longitudinal direction of the open casing 100, and a grip 103 is attached to the center of the lower end 102 of each night cover 101 so as to project downward.
On the other hand, a handrail 26 that constitutes a part of the front wall 2A is attached to the upper end of the front wall 2A of the heat insulating wall 2 to form the lower edge of the opening 1. On the rear surface of the handrail 26, a locking tool 1 is provided corresponding to the lower side of the handle 103 of the night cover 101.
When a plurality of 04 are attached, and the opening 1 is closed by the night cover 101, the grip 103 is held and pulled down, and the grip 103 is locked to the locking tool 104. As a result, the night cover 101 is stretched on the outside of the protective air cover 21 to cool the cold cover 19.
It also protects the protective air curtain 21.

[0006]

However, the handle 103 of the night cover 101 projects downward from the lower end portion 102 with a size that allows fingers to be inserted therein, and the handle 103 is engaged with the locking member 104. Since it is to be stopped, the vertical dimension of this handle 103 is 30 mm
A moderate gap P is formed between the lower end portion 102 of the night cover 101 and the handrail 26. Since a part of the cool air cover 19 and the protective air cover 21 leaks out from the gap P as shown in FIGS. 9 and 12, the cooling efficiency is adversely affected and the energy saving when the night cover 101 is stretched is reduced. There was a problem that impaired the effect.

Further, if the mounting position of the locking member 104 is lowered, the position of the lower end portion 102 of the night cover 101 is also lowered.
Although the gap P can be narrowed, since the structure is such that the grip 103 itself is held by the locking tool 104, the hand must be inserted to the lower portion of the rear surface of the front wall 2A when the night cover 101 is stretched. The hands are a night cover
It becomes a shape that is narrowed between 101 and the front wall 2A, and is a night cover.
The work of stretching 101 becomes very difficult.

Therefore, for example, as shown in FIGS. 13 and 14, the handle 103 is provided with a finger hook portion 103A protruding forward from the lower end portion 102, and an engaging portion 103B extending downward from the finger hook portion 103A. Structure, engagement part 1
If the projection size of 03B is reduced, the night cover 101
Although the lower end portion 102 of the night cover 101 can be brought close to the handrail 26 without impairing the workability of stretching, the gap P is formed to some extent even if the size of the engaging portion 103B is minimized. Cold air 1
9 and the leakage of the protective air curtain 21 could not be eliminated.

The present invention has been made to solve the above-mentioned conventional technical problems, and is an open-shake casing which prevents leakage of cold air from between the lower end of the night cover and the front wall of the heat insulating wall. The purpose is to provide the service.

[0010]

That is, in the open casing 30 of the first invention, a cold air curtain 19 is formed in the front opening 1 of the heat insulating wall 2 and is provided above the opening 1. A child wind-up type night cover 31 is used to close the opening 1, and a locking tool 32 provided on the rear surface of the front wall 2A of the heat insulating wall 2 and a rear surface of the lower end portion 34 of the night cover 31 are provided. It has a mounting portion 37 that is locked to the locking member 32, and a grip portion 36 that is located in front of the mounting portion 37 and that is provided on the night cover 31.
It is characterized in that the lower end portion 34 of the night cover 31 is brought into contact with the front wall 2A of the heat insulating wall 2 in a state where the night cover 31 is locked to 2.

Next, the open casing 3 of the second invention.
Reference numeral 0 denotes a cold air curtain 19 formed in the front opening 1 of the heat insulating wall 2, and the child wind-up type night cover 31 provided at the upper portion of the opening 1 closes the opening 1. 2 is provided on the rear surface of the front wall 2A and the rear portion of the lower end portion 34 of the night cover 31 is provided on the rear surface thereof.
And a grip portion 36 provided on the night cover 31 in front of the mounting portion 37.
An elastic soft portion 40 provided on the lower end portion 34 of the night cover 31 and abutting against the front wall 2A of the heat insulating wall 2 in a state where the mounting portion 34 is locked by the locking tool 32 is provided. Characterize.

[0012]

In the first aspect of the invention, when the opening portion 1 of the open casing 30 is closed by the night cover 31,
The handle portion 36 is held and pulled down, and the mounting portion 37 of the lower end portion 34 thereof is inserted into the rear side of the front wall 2A of the heat insulating wall 2 and locked by the locking tool 37 provided therein. The lower end portion 34 of the night cover 31 abuts on the front wall 2A of the heat insulating wall 2 in a state where the mounting portion 37 is locked by the locking tool 32, but since the night cover 31 is an automatic winding type, the handle portion 36 is provided. When the hand is released from the bottom, the lower end portion 34 of the night cover 31 receives a force that is pulled upward by the winding force, and this force rotates around the engaging portion of the locking tool 32 and the mounting portion 37, and the lower end portion 34.
Will be pressed against the front wall 2A of the heat insulating wall 2.

In the second aspect of the present invention, when the opening 1 of the open casing 30 is closed by the night cover 31, the handle portion 36 is pulled down, and the mounting portion 37 of the lower end portion 34 thereof is attached to the heat insulating wall 2. It is inserted into the rear side of the front wall 2A and is locked by a locking tool 37 provided therein. The soft parts 40, 41, 42 provided under the hard member at the lower end of the night cover 31 are in close contact with the upper surface of the front wall 2A of the heat insulating wall 2 with the attachment part 37 being locked by the locking tool 32. Since the night cover 31 is of the automatic winding type, when the hand is released from the handle portion 36, the lower end portion 34 of the night cover 31 receives a force of being pulled up by the winding force, and this force causes the locking tool 32 and the mounting portion 37. Rotate around the engaging part of the soft parts 40, 4
1, 42 are pressed against the upper surface of the front wall 2A of the heat insulating wall 2.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a vertical sectional side view of an open casing 30 of the present invention, and FIG. 2 is an open casing 30 excluding a side plate 33.
FIG. 3 is a perspective view of the upper portion, FIG. 3 is a vertical cross-sectional side view of the lower end of the night cover 31 in a state in which the night cover 31 of the first invention is locked to the locking device 32, and FIG. 5 is a perspective view of the open casing 1, FIG. 5 is a rear perspective view of the front wall 2A of the heat insulating wall 2 in which the night cover 31 is locked to the locking tool 32, and FIGS. 6, 7 and 8 are It is a vertical side view of the night cover 31 lower part of the state which locked the night cover 31 of 2nd invention with the locking tool 32. FIG.

9 to 14 are the same as those in FIGS. 9 to 14, and the main body 3 of the open casing 30 excluding the night cover 31 and the fastener 32 is the same as the conventional one. Since it is the same as the case of the puncture case 100, the description thereof will be omitted. The open case 30 of the present invention
The automatic wind-up type night cover 31 of the present invention is attached to the front end of the eaves 23 above the opening 1. A plurality of the night covers 31 are arranged side by side in the longitudinal direction of the open casing 30. A grip portion 36 is attached to the substantially central portion of the front surface of the lower end portion 34 over the entire width of each night cover 31. The lower end portion 34 is attached so as to project downward so that the can be inserted. Furthermore, Night Cover-3
A mounting portion 37 is provided at a substantially central portion of the rear surface of the lower end portion 34 of 1. The mounting portion 37 stands upright from the rear surface of the lower end portion 34, is bent downward at an obtuse angle, and a locking hole 38 is formed in this bent portion.

On the other hand, at the upper end of the front wall 2A of the heat insulating wall 2, on the rear surface of the handrail 26 which constitutes a part of the front wall 2A, a locking member 32 is provided corresponding to the lower side of the mounting portion 37 of the night cover 31. Is attached multiple times. When the opening 1 is closed by the night cover 31, the handle 3
6 and pull it downward as shown in FIG. 2, and rotate the handle portion 36 slightly counterclockwise in FIG. 3 about the lower end portion 34 directly above the handrail 26 to lay the lower end portion 34 on the opposite side. The mounting portion 37 is inserted to the rear of the handrail 26, the locking hole 38 is engaged with the locking tool 32, and the hand night cover 31 is locked. As a result, similarly, the night cover 31 is stretched on the outside of the protective air cover 21 to protect the cold air cover 19 and the protective air cover 21.

As described above, the mounting portion 37 of the night cover 31 is provided.
When the hand grip 36 is released after the hook is locked to the locking tool 32, the lower end 34 receives a pulling force by the winding force of the night cover 31 itself, and the lower surface is inclined downward as shown in FIG. To do. In this state, the handle portion 3 of the night cover 31
6 jumps forward above the handrail 26,
The inner corners of the lower surface of the lower end portion 34 contact the upper surface of the handrail 26 as shown in FIG. By this, the night cover 31
A gap is not formed between the lower end portion 34 and the handrail 26 at the upper end of the front wall 2A, and the leakage of the protective air curtain 21 and the cool air curtain 19 from this portion is prevented.

Particularly, due to the winding force of the night cover 31 itself, the lower end portion 34 is centered around the locking hole 38 in FIG.
Since it is about to be rotated in the counterclockwise direction, the lower end portion 34 is further pressed against the upper surface of the handrail 26 by this turning power. Therefore, the effect of closing the opening 1 is further improved by the night cover 31, and the open casing is
The energy saving effect of the space 30 is further improved. The night cover 31 is the conventional night cover 10 shown in FIG.
It is possible to configure by simply providing the mounting portion 37 on the rear surface of the lower end portion 102 of No. 1 and is excellent in versatility.

Next, the second invention will be described. Below the hard lower end 34 of the night cover 31 in FIG.
An elastic soft portion (a tongue-shaped soft portion 40 in FIG. 6, a fold-shaped soft portion 41 in FIG. 7, and a hollow soft portion 42 in FIG. 8) is formed by heavy extrusion. The elastic soft portions 40, 41 and 42 are elastically deformed and adhere to the upper surface of the handrail 26. In this case, it is possible to deal with some distortion or deviation of the night cover 31. Therefore, the effect of closing the opening 1 is further improved by the night cover 31, and the energy saving effect of the open casing 30 is further improved. The soft parts 40, 41 in the second invention
The shapes of and 42 are not limited to those of FIGS. 6, 7 and 8. In addition, the soft parts 40, 41 and 42 are
It may be formed separately.

[0020]

As described above in detail, according to the first aspect of the invention, the lower end of the night cover is attached to the front wall of the heat insulating wall in a state in which the mounting portion provided on the lower end of the night cover is locked by the locking tool. Since they abut, it is possible to eliminate the gap between the lower end of the night cover and the front wall of the heat insulating wall, prevent or minimize the leakage of cold air from the gap, and improve the energy saving effect. In particular, since the lower end is pressed against the front wall of the heat insulating wall by the winding force of the automatic wind-up type night cover, the effect of preventing cold air leakage is ensured, and the energy saving effect can be remarkably improved. is there. Further, since the mounting portion is provided on the rear surface of the lower end portion of the night cover and the handle portion is provided on the front side thereof, there is no problem in the work of locking the mounting portion to the locking tool.

According to the second aspect of the invention, the elastic soft portion provided below the lower end portion of the night cover in a state where the attachment portion provided at the lower end portion of the night cover is engaged with the engaging member. Since it abuts on the upper surface of the front wall of the heat insulating wall, the gap between the elastic soft member and the front wall of the heat insulating wall can be eliminated, and the leakage of cold air from the gap can be prevented to improve the energy saving effect. In particular, since the soft member provided at the lower end elastically deforms and adheres to the front wall of the heat insulating wall by the winding force of the automatic wind-up type night cover, the cold air leakage prevention effect becomes even more reliable.
The energy saving effect can be remarkably improved.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view of an open casing of the present invention.

FIG. 2 is a top perspective view of the open casing of the present invention excluding side plates.

FIG. 3 is a vertical cross-sectional side view of the lower portion of the night cover in a state in which the night cover of the open-cast case according to the first aspect of the present invention is locked to a locking tool.

FIG. 4 is a perspective view of the open casing of the present invention in which the opening is closed by a night cover.

FIG. 5 is a rear perspective view of the front wall of the heat insulating wall of the open casing of the first invention in which the night cover is locked to the locking tool.

FIG. 6 is a vertical cross-sectional side view of the lower portion of the night cover of the second invention, in which the night cover of the open casing is locked to the locking tool.

FIG. 7 is a vertical cross-sectional side view of the lower portion of the night cover in a state in which the night cover of the open-case of the second invention is locked to the locking tool.

FIG. 8 is a vertical cross-sectional side view of the lower portion of the night cover in a state in which the night cover of the open-case of the second invention is locked to the locking tool.

FIG. 9 is a vertical cross-sectional side view of a conventional open casing.

FIG. 10 is a conventional open cover case night cover.
It is a rear perspective view of the heat insulation wall front wall in the state where it was locked to the locking tool.

FIG. 11 is a night cover of a conventional open-cast case.
It is a vertical side view of the night cover lower part in the state which locked with the locking tool.

FIG. 12 is a perspective view of a conventional open casing with an opening closed by a night cover.

FIG. 13 is a rear perspective view of the front wall of the heat insulating wall in a state in which the other night cover of the conventional open-cast case is locked to the locking tool.

FIG. 14 is a vertical cross-sectional side view of the lower part of the night cover in a state where another conventional open cover case night cover is locked to a locking tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Opening 2 Heat insulation wall 2A Front wall 30 Open shore case 31 Night cover 32 Locking tool 34 Lower end 36 Handle part 37 Attachment part 40 Soft part 41 Soft part 42 Soft part

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Mitsufumi Yoshida 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. An open-shake case in which a cold air cover is formed in the front opening of the heat insulating wall, and the opening is closed by a self-winding type night cover provided above the opening.
A locking member provided on the rear surface of the front wall of the heat insulating wall,
The night cover includes a mounting portion provided on a rear surface of a lower end portion of the night cover, the locking portion being locked by the locking tool, and a grip portion provided on the night cover, the grip portion being positioned in front of the mounting portion. The night cover in a state in which the
An open casing in which the lower end portion of the heat insulating wall is in contact with the front wall of the heat insulating wall. 2. An open-shake case in which a cold air cover is formed in the front opening of the heat insulating wall, and the opening is closed by a self-winding type night cover provided above the opening.
A locking member provided on the rear surface of the front wall of the heat insulating wall,
An attachment portion provided on the rear surface of the lower end portion of the night cover, which is engaged with the engagement tool, a grip portion provided on the night cover in front of the attachment portion, and a lower end portion of the night cover. And an elastic soft portion that is provided and abuts on the front wall of the heat insulating wall in a state where the mounting portion is locked to the locking tool.