JP2547622Y2 - Refrigerated showcase sliding door - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door for a refrigerated showcase, and more particularly to a sliding door for a refrigerated showcase with improved airtightness between the sliding door and a guide rail for slidingly guiding the sliding door.

[0002]

2. Description of the Related Art Various types of sliding door type refrigerated showcases have heretofore been proposed. In such a refrigerated showcase, at least when the sliding door is closed, the airtightness between the showcase body and the sliding door is maintained and the refrigeration efficiency is maintained. Must not be reduced.

In order to solve such a demand, various sliding door structures have been proposed. For example, Japanese Utility Model Shoukai 59-1
Japanese Patent No. 059887 and Japanese Utility Model Application Laid-Open No. 61-71890 disclose that a seal member is provided on a lower rail, and when the sliding door is closed, the sealing member is brought into contact with a lower frame member fitted to a lower portion of the sliding door or a lower end portion of the sliding door. Describes a sliding door structure that maintains the airtightness between the showcase body and the sliding door and prevents the cool air in the showcase body from leaking to the outside.

Further, Japanese Utility Model Laid-Open Publication No. 55-112194 discloses that a seal member is provided at a lower portion of a sliding door, and the sealing member is brought into contact with a lower rail when the sliding door is closed, so that the airtightness between the showcase body and the sliding door is improved. A sliding door structure adapted to be held is described.

Further, Japanese Unexamined Utility Model Publication No. Sho 62-83179 discloses that a lower frame member fitted to the lower end of a sliding door is provided with a projection.
There is described a sliding door structure in which when the sliding door is closed, its protrusion is brought into contact with the upper end of the lower rail to maintain the airtightness between the showcase body and the sliding door.

[0006]

However, in the sliding door structure in which the sealing member is provided on the lower rail as in the sliding door structure described in Japanese Utility Model Application Laid-Open No. 59-105987, etc. It is extremely difficult to clean garbage and the like, and thus there is a problem that the food and the like may become unsanitary considering that food and the like are generally stored in a refrigerated showcase.

Further, in a sliding door having a structure in which a seal member is disposed in a lower rail, such as a sliding door structure described in Japanese Utility Model Laid-Open No. 55-112194, dirty water, dust, and the like enter the lower rail. Therefore, there is a problem that the food in the refrigerated showcase may become unsanitary as in the case described above.

Further, in addition to the sliding door structure described in the above-mentioned publication, the sliding door structure described in Japanese Utility Model Laid-Open Publication No. 62-83179 discloses a sliding door that covers the lower rail portion inside the warehouse of the showcase. Since the cooling air does not exist, therefore, the cool air circulating in the refrigerator directly hits the lower rail portion, and there is a possibility that the cool air circulation may be disturbed. This causes a reduction in the cooling efficiency of the food or the like stored in the showcase. In addition, since the cold air directly hits the lower rail portion, there is a problem that the cooling efficiency is reduced by heat taken from the lower rail.

In the sliding door structure described in Japanese Utility Model Laid-Open Publication No. 62-83179, a projection is provided on a lower frame member of the sliding door, and cleaning is difficult due to the presence of the projection as in the above-described sliding door structure. Although there is no property, it is not considered that such protrusions are formed from a flexible soft material, and the manufacturing variation of the lower frame member and the lower rail, and the processing of these parts, When a variation in assembly occurs, such a protrusion may not be able to absorb a gap generated between the lower rail and the lower frame member due to the above-described variation, and may not be able to maintain airtightness. .

The present invention has been made to solve the above-mentioned problems of the prior art, and makes it possible to clean the lower rails and the like very easily so that foods and the like stored in a refrigerated showcase can be sanitized. Refrigerator that can maintain and prevent the cooling efficiency from lowering without disturbing the circulation of cool air inside the showcase, and can also maintain airtightness even if the lower rails etc. have manufacturing variations. It aims to provide a sliding door for a showcase.

[0011]

In order to achieve the above object, the present invention provides an upper and lower guide rail provided at the upper and lower ends of a front opening of a refrigerated showcase main body, and slidably moves along both guide rails. A refrigerated showcase having a sliding door disposed thereon, a lower frame member provided at a lower end portion of the sliding door, wheels mounted on the lower frame member, and a door rail provided on the lower guide rail and slidingly guiding the wheels. , A seal member is provided on the inner side of the refrigerator in the refrigerated showcase of the lower frame member, and the seal member is in close contact with the upper end edge of the lower guide rail so as to cover and incline along the direction of circulation of cool air inside the refrigerator. It is configured to have

The door rail is formed with a slope inclined downward toward the side end of the front opening so that the seal member is in close contact with the upper edge of the lower guide rail when the sliding door is closed. Configuration. Further, the sealing member is formed of a flexible sealing member having flexibility.

[0013]

In the present invention having the above construction, the flexible soft seal member provided on the lower frame member is in close contact with the upper end edge of the guide rail in a covering manner, and circulates cool air in the refrigerator showcase. It is inclined along the direction. Thereby, the cool air in the showcase compartment circulates through the compartment without directly hitting the lower guide rail and without its circulation being disturbed, and the foods and the like incorporated in the showcase are efficiently cooled.

In the present invention, when the sliding door is closed, the wheels are slid and guided by a door rail which is inclined low along the side end of the front opening of the showcase body, and at this time, the sealing member is a lower guide rail. Is in close contact with the upper edge of the cover.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of a refrigerated showcase, and shows a showcase body 1.
Is made of a box formed of a heat insulating material or the like. An opening 2 is provided on the front surface of the showcase body 1, and an upper guide rail 3 and a lower guide rail 4 (see FIG. 2) are attached to the upper end 2A and the lower end 2B of the front opening 2, respectively. ing. A pair of sliding doors 5 and 6 are slidably fitted on the guide rails 3 and 4 along the guide rails 3 and 4.

The sliding doors 5 and 6 have door frames 13 and 1 to be described later.
The transparent glasses 7 and 8 are fitted through the glass 4 respectively, so that the food and the like stored in the showcase body 1 can be seen through the glass 7 and 8. Also, gripping portions 9 and 9 are provided at the left and right ends of the sliding doors 5 and 6, respectively.
The grips 9 and 10 are used to open and close the doors 5 and 6 with fingers when opening and closing the sliding doors 5 and 6.

Next, referring to FIG. 2 and FIG.
And the relationship between the upper and lower guide rails 3 and 4 will be described.
FIG. 2 is an explanatory view showing the structural relationship between the sliding doors 5 and 6 and the upper and lower guide rails 3 and 4 in a partially omitted cross-section.
FIG. 3 is a cross-sectional view schematically showing the lower guide rail 4 in a partially enlarged manner.

2 and 3, the upper guide rail 3 is provided with two guide portions 3A and 3B. The guide portion 3A is provided with an upper frame member 11 fitted to the upper end of the door frame 13 of the sliding door 5. The guide 3B slides and guides the upper frame member 12 fitted to the upper end of the door frame 14 of the sliding door 6.

Similarly to the upper guide rail 3, the lower guide rail 4 is provided with two guide portions 4A and 4B.
Door rails 15 and 16 having wheel guide portions 15A and 16A for slidingly guiding 22 are provided, respectively.

H-shaped lower frame members 17 and 18 are fitted to the lower ends of the door frames 13 and 14, respectively. These lower frame members 17 and 18 are molded by a two-color extrusion molding method of hard vinyl chloride and soft vinyl chloride, and the inside A of the showcase main body 1 in each lower frame member 17 and 18 (see FIG. 3). The seal fins 19 and 20 are integrally formed at the lower part of the parentheses. B in FIG. 3 indicates the outside of the storage of the showcase main body 1.

Here, each of the sealing fins 19 and 20 is made of soft vinyl chloride, and therefore has sufficient flexibility. The free ends of the sealing fins 19 and 20 are in close contact with each other so as to cover the upper edges of the inside A of the guides 4A and 4B of the lower guide rail 4 as shown in FIG.

The direction of circulation of cool air in the showcase body 1 is as shown by arrow C in FIG.
Since the sealing fins 19 and 20 are inclined along the cooling air circulation direction C, the cooling air flowing down along the sliding doors 5 and 6 from the sealing fins 19 and 20 close to the lower frame members 17 and 18 respectively. , 20 along the free ends, so that the circulation of cool air is not disturbed near the lower frame members 17, 18 and the lower guide rail 4.

Wheels 21 and 22 are fixed to the lower frame members 17 and 18 at positions corresponding to the lower end surfaces of the door frames 13 and 14, respectively.
When opening and closing the wheel guides 15 of the door rails 15 and 16
A and 16A are slidingly guided. 2 and 3, each door rail 15, 16 has one wheel 2
Although only wheels 1 and 22 are shown, such wheels 21 and 2
2 further includes one wheel 21 along the lower frame members 17 and 18;
22 are provided.

In the refrigerated showcase having the above configuration, when cleaning the vicinity of each of the sliding doors 5 and 6,
First, the sliding doors 5 and 6 are removed from the showcase body 1. After this, sewage collected near the door rails 15, 16
What is necessary is just to clean trash. As described above, in the present embodiment, since the sealing fins 19 and 20 are not provided on the lower guide rail 4, the sealing fins 19 and
0 does not become an obstacle, and therefore, cleaning of sewage, dust and the like can be performed very easily. As a result, it is possible to keep the food and the like stored in the showcase body 1 sanitary.

When refrigeration of foods and the like in the showcase body 1 is performed, the cool air in the showcase body flows in the direction of arrow C in FIG. 3, but the free ends of the sealing fins 19 and 20 are connected to the lower guide rail 4. Is in close contact with the upper edge of the
Therefore, the cool air is supplied to the lower frame members 17 and 18 and the door rails 15 and 1.
6 is securely prevented from flowing out to the outside B of the warehouse through the gap between the inside A and the outside B of the showcase body 1.
And airtightness can be maintained.

Further, since the sealing fins 19 and 20 are inclined along the circulation direction C of the cool air in the inside A of the showcase main body 1, the cool air is cooled by the seal fins 19 and 20.
3 does not stagnate in the direction of arrow C in FIG. 3 and does not directly hit the lower guide rail 4, so that the circulation of cool air in the inside A of the refrigerator is not disturbed and the food and the like can be efficiently used. Cooling can be performed well, and cooling efficiency does not decrease due to heat taken from the lower guide rail 4.

As shown in FIG. 3, the sealing fins 19 and 20 are formed of flexible soft vinyl chloride, and sufficiently cover the gap between the lower frame members 17 and 18 and the lower guide rail 4. Since it has a possible length and is in close contact with the upper edge of the lower guide rail 4 in a covering manner, the lower frame members 17 and 18, the door rails 15 and 16, the lower guide rail 4
In the case of manufacturing, even when manufacturing and processing variations occur, and when these assembling variations occur, the sealing fins 19 and 20 can flexibly absorb the variations, and the lower frame member The airtightness between the inside A and the outside B of the showcase body 1 can be maintained without generating a gap between the lower case 17 and the lower guide rail 4.

Next, another embodiment of the sliding doors 5, 6 will be described with reference to FIGS. 4, 5, and 6. FIG. FIG. 4 shows the sliding door 5,
FIG. 5 is an explanatory view showing a structural relationship between the upper and lower guide rails 3 and 4 in a partially omitted cross-sectional view. FIG. 5 is a cross-sectional view schematically showing the lower guide rail 4 in a partially enlarged manner. 6 is a side view of the door rail. The embodiment described below has basically the same configuration as the above-described embodiment. Therefore, in each drawing, the same components as those in the above-described embodiment are denoted by the same reference numerals, and The following description focuses on the differences.

The difference between the embodiment shown in FIGS. 4, 5 and 6 and the embodiment shown in FIGS. 2 and 3 is that the door rails 30 and 31 are mainly formed of the front opening 2 in the showcase body 1. Inclined surface 3 inclined lower toward side ends 1A, 1B
4 is formed.

In these figures, the guide portions 4A and 4B of the lower guide rail 4 have door rails 30, 31 respectively.
Are fitted, and ridges 30A, 31A are formed on the upper surfaces of both door rails 30, 31. The wheels 32,
33 is 2 for each of the sliding doors 5 and 6 as shown in FIG.
Are provided.

Wheels 32, 33 fixed to the lower surfaces of the lower frame members 17 and 18 are attached to these ridges 30A, 31A.
Recesses 32A, 33A are guided. This allows
When the sliding doors 5 and 6 are opened and closed, the recesses 32A and 33A are guided through the ridges 30A and 31A of the door rails 30 and 31 according to the rotation of the wheels 32 and 33, so that the front opening 2 of the showcase body 1 is opened. Is slid along.

As shown in FIG. 6, the door rails 30 and 31 have side ends 1 of the front opening 2 at both ends.
An inclined surface 34 that is inclined downward toward A and 1B is formed. Further, a concave portion 35 is formed substantially at the center of the door rails 30 and 31. These inclined surface 34 and concave portion 3
Reference numeral 5 is for stopping and storing the wheels 32, 33 when both the sliding doors 5, 6 are in the closed state, as is apparent from FIG. At this time, each of the wheels 32 and 33 has a slope 34
And the concave portion 35 is located at a lower position by an amount corresponding to the lowering, so that the sealing fins 19 and 20 are in close contact with the upper end edges of the insides A of the guide portions 4A and 4B of the lower guide rail 4 in a covering manner. You.

Further, when the sliding door 6 is in the open state,
As shown by the broken line in FIG.
4, because it is removed from the concave portion 35 (the wheel 33
4, slightly higher than when in recess 35),
As shown in FIG. 5, the sealing fin 20 is located at a position separated from the upper edge of the inside A of the guide portion 4B.

FIG. 5 shows that the sliding door 5 is in a closed state and that the sliding door 6 is in an open state.

With the sliding doors 5 and 6 according to the other embodiments having the above-described configuration, cleaning of sewage, dust and the like near the sliding doors 5 and 6 can be simplified similarly to the first embodiment. To keep the food and the like stored in the showcase body 1 in a sanitary manner, to maintain the airtightness between the inside A and outside B of the showcase body 1, and to circulate cool air inside the inside A of the showcase. Due to the effect of not lowering the cooling efficiency of foods and the like without disturbing the food and the flexibility of the sealing fins 19 and 20 made of soft vinyl chloride, variations in manufacturing, processing and assembly of the guide rails 4 and the like are reduced. It is clear that the effect of maintaining the airtightness between the inside A and the outside B can be obtained even when it occurs.

As described in detail above, the sliding doors 5 and 6 of the refrigerated showcase according to each of the above embodiments are provided with the sealing fin 1.
Lower frame member 1 without providing 9 and 20 on guide rail 4
Since the lower guide rails 4 and the like are provided, cleaning of the lower guide rails 4 and the like can be performed very easily. As a result, the food and the like stored in the refrigerated showcase main body 1 can be held in a sanitary manner.

The sealing fins 19 and 20 are formed of flexible soft vinyl chloride, and the free ends of the sealing fins 19 and 20 are brought into close contact with the upper edge of the lower guide rail 4 in a covering manner. Since the cooling air is inclined along the circulation direction C, the airtightness between the inside A and the outside B of the showcase body 1 can be reliably maintained, and the circulation of the cool air in the inside A is disturbed. Food and the like can be efficiently cooled, and the lower frame members 17, 1
8. Even if manufacturing, processing, or assembling variations occur in the lower guide rail 4 or the like, it is possible to absorb such variations and maintain the airtightness between the inside A and outside B of the warehouse.

[0038]

[Effects of the Invention] As described above, the present invention makes it possible to clean the lower rails and the like very easily and to keep the food and the like stored in the refrigerated showcase in a sanitary manner. It is possible to provide a refrigerated showcase sliding door that can prevent a decrease in cooling efficiency without disturbing the circulation of cool air and can reliably maintain airtightness even when manufacturing variations occur in the lower rail and the like. ,
The industrial effect is great.

[Brief description of the drawings]

FIG. 1 is a perspective view of a refrigerated showcase.

FIG. 2 is an explanatory view showing a structural relationship between a sliding door and upper and lower guide rails in a cross-section with a part omitted.

FIG. 3 is a sectional view schematically showing a lower guide rail in a partially enlarged manner.

FIG. 4 is an explanatory view showing a structural relationship between the sliding door and the upper and lower guide rails in a cross-sectional view with a part omitted.

FIG. 5 is a cross-sectional view schematically showing a lower guide rail in a partially enlarged manner.

FIG. 6 is a side view of a door rail.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Showcase main body 2 Front opening 2A Upper end 2B Lower end 3 Upper guide rail 4 Lower guide rail 5, 6 Sliding door 17, 18 Lower frame member 21, 22, 32, 33 Wheel 15, 16, 30, 31 Door rail 19 , 20 Sealing fins 34 Slope A Inside the warehouse B Outside the warehouse

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 62-83179 (JP, U) Japanese Utility Model Sho 61-3387 (JP, U) Japanese Utility Model Sho 48-964 (JP, U) Japanese Utility Model Sho 59- 105987 (JP, U) Fully open Showa 61-71890 (JP, U) Fully open Showa 61-134361 (JP, U) Fully open Showa 55-121194 (JP, U)

Claims (2)

(57) [Scope of request for utility model registration] An upper and lower guide rail provided at upper and lower ends of a front opening of a refrigerated showcase main body, a sliding door slidably disposed along both guide rails, and a sliding door provided at a lower end of the sliding door. A lower frame member, a wheel attached to the lower frame member, and a door rail provided on the lower guide rail and slidingly guiding the wheels, wherein the lower frame member has a refrigerator inside in the refrigerated showcase. in, provided with fins for soft seal having a flexible, its soluble
The free end of the soft seal fin extends from the upper end edge of the lower guide rail to the inside of the refrigerator based on the flexibility and closely adheres in a covering manner, and is inclined along the direction of circulation of cool air inside the refrigerator. Refrigerated showcase sliding door. 2. The door rail has a front opening .
A concave surface is formed at an approximate center of the front opening,
When the door is closed, each inclined surface and recess stop and store the wheels.
2. The sliding door of a refrigerated showcase according to claim 1, wherein the free end of the soft seal fin is in close contact with the upper edge of the lower guide rail.