JPH06201254A - Refrigerator for business - Google Patents

Abstract

PURPOSE:To provide a refrigerator for business which is so freely arranged to set a storage chamber with a partition or without the same by mounting of a rotary partition body simply on a door. CONSTITUTION:Intermediate members 31A and 31B are mounted on a door 3 which is produced by foaming a heat insulating material I to fill between an outer frame 24A, a gasket holder 26A and an internal door panel 28A. On the other hand, a partition body 19 is mounted on a metal support plate 41 fixed on the internal door panel 28A free to rotate. Gaskets 15A and 15A are mounted adjusting the mounting positions thereof with the intermediate members 31A and 31B so as to secure adhesion thereof to a steel plate 17 of the partition body 19 having a heater 46 for preventing frosting thereon. This allows the fastening of the partition body on the door with a simple assembling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator for business use having a double-door type door.

[0002]

2. Description of the Related Art Conventional refrigerators having double doors of this type have a gasket provided on the back of both doors to keep the inside of the refrigerator airtight. Therefore, when both doors are closed, they are not pivotally supported. In general, a pillar that serves as a surface to which a gasket to be positioned abuts is vertically arranged on the side of the heat insulating box so as to partition the opening, and is fixedly mounted.

However, in view of the drawback that the support column reduces the internal volume and hinders the delivery of articles from the opening, in recent years, as described in Japanese Patent Publication No. Hei 1-123979, the above-mentioned problem has occurred. There has been proposed a type of refrigerator in which a rotatable partition body is attached to the non-pivotal side of one of the doors in place of the pillar. Also, by providing a rotary partition on one of the double doors of the double door, the partition forms the contact surface of the gasket when the door is closed and moves away from the opening edge together with the door when the door is opened. However, since dew condensation occurs on the front surface of the partition, a dew-prevention heater is provided for this. In that case, the lead wire for supplying power to this heater is conventionally the fifth wire of the above-mentioned publication.
As shown in FIGS. 6 and 6, it is introduced from the hinge portion of the door into the door, passed through the urethane foam of the door, and led out from the non-pivotal side to which the partition body is attached.

[0004]

By the way, the double-door type door is not only the small refrigerator as described in the above publication but also the large-sized door installed in the kitchen room of a restaurant or the like because of its ease of use. It will be more convenient when applied to commercial refrigerators.

In this case, in a commercial refrigerator, since the door is heavy, the frequency of opening and closing is very high, and the operation is a little rough, the door is fixed by a fixed column. In case of receiving, it is formed into a wide and thick strut to have a robust structure.

[0006] On the other hand, it is possible to use the rotary partitioning body as a commercial refrigerator by diverting the technical means disclosed in the above-mentioned publication, but in that case, simply use the above-mentioned fixed wide and thick column. If similar partition bodies are pivotally attached, it is not possible to expect a large internal volume to be secured, and there have been problems such as high component costs and complex assembly work. The present invention was first made in view of the above problems, and enables the use of a rotary partitioning body that is small in shape, reduces cost and improves assembly, and at the same time, applies the partitioning body to a door. Assembling is optional, and it is possible to provide a commercial refrigerator with a wide range of specifications by allowing the storage chamber to have a front opening with or without a partition, which can be freely arranged. In addition, when wiring the power supply to the dew condensation prevention heater of the partition body, in the conventional technology, the lead wire is fixed by urethane curing after urethane foaming at the part introduced from the hinge part of the door to the inside of the door. The lead wire may be twisted due to rotational movement when the door is opened or closed, leading to wear or disconnection. In addition to applying an extra external force to the lead wire due to the urethane foaming pressure, it is also necessary to seal the lead wire take-out part.If the lead wire is broken, the door body must be replaced. Measures should be taken to avoid embedding (lead wire) in urethane foam.

Therefore, in the second aspect of the present invention which should solve the above problems, the lead wire for supplying power to the dew condensation preventing heater of the partition body can be easily wired without being embedded in the urethane foam of the door and passing through. (EN) A commercial refrigerator having a door structure with improved safety and serviceability.

[0008]

SUMMARY OF THE INVENTION The present invention includes a double door that is rotatably supported on both sides of the opening of a heat insulating box so as to close the opening of the heat insulating box, and the doors are provided at the peripheral edges of the back surfaces of both doors. A gasket that abuts against the peripheral edge of the opening, a shaft that vertically projects toward the inside of the refrigerator at a position of the opening edge portion corresponding to the unsupported side of the one door, and an unsupported side portion of the one door. Has a metal support plate on the back surface thereof and is rotatably supported by extending in the up-and-down direction with a length extending over the opening edge portion, and is engaged with the shaft to rotate with the closing operation of the door, and And a narrow partition body having a curved operating groove for contacting the door and the back surface of the door, and the gaskets are respectively provided at the peripheral edges of the back surfaces of the both doors and hold the gasket at a position where the gasket contacts the partition body. The intermediate member for attaching the gasket is provided.

A partition body rotatably attached to the unsupported side of one of the double-door double doors rotatably supported on both sides of the opening so as to close the opening of the heat insulation box, A dew-prevention heater is provided inside the partition body, and an accommodating portion that is provided at the peripheral edge of the back surface of the one door and accommodates the power supply lead wire of the heater is provided.

[0010]

[Function] With a metal support plate, a narrow partition body is rotatably mounted on the back side of the non-supporting side of one of the double doors, and a gasket is provided with an intermediate member on the peripheral edge of the back surface of the door. It is attached to the position where it abuts.

[0011] With this, it is possible to easily achieve the storage room without the columns that partition the opening without changing the basic structure of the door and by adding a few additional parts.

The lead wire for supplying power to the dew condensation preventing heater provided on the partition body is arranged along the storage portion formed on the peripheral edge of the back surface of the door so that wiring can be easily performed.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 10 denotes a unit chamber 2 at the upper part of the heat insulating box 1.
And has a first door 3, a second door 4 and a third door 5, and a fourth door 6 of the gannon opening type. There is a main body horizontal partition 8,
A net shelf 9 and a shelf post 11 that supports the net shelf 9 are provided inside, and storage chambers 12 and 13 are formed at the top and bottom. The first door 3, the second door 4, the third door 5, and the fourth door 6 are rotatably supported by the upper and lower hinges on the left and right edge portions of the openings of the storage chambers 12 and 13, respectively. . Further, gaskets 15A and 15B are provided on the peripheral edges of the back surfaces of the first door to the fourth door so as to abut the respective openings and the peripheral edge of the main body lateral partition 8. In the lower storage chamber 13, a pillar 16 is arranged so as to vertically divide the opening into two, and when the third door 4 and the fourth door 5 are closed, the gasket 15B on the non-supporting side of the door 15B.
The portion of is magnetized and closely adhered to the steel plate 17 forming the front surface of the pillar 16.

On the other hand, there is no support pillar in the opening of the upper storage chamber 12, but when the first door 3 and the second door 4 are closed, the opening 15 is a portion to which the unsupported gasket 15A is closely attached. A plate-shaped shaft 18 is provided at the edge portion so as to project toward the inside of the refrigerator. And of the two doors that open and close the upper storage room 12,
One of the first doors 3 is supported by a pair of upper and lower hinges on the back surface of the non-supporting side so as to extend in the rotation axis direction of the door and extend freely over the upper and lower edges of the opening so as to be rotatable. The divided partition body 19 is attached.

Further, at one end, that is, the upper end of the partition body 19, the shaft 18 is provided as the first door 3 is closed.
A curved operation groove 21A is formed by which the partition 19 is operated so as to rotate.

The rotatable partitioning member 19 is smaller in width and thickness than the fixedly installed support column 16 and is small in shape.

The compressor 2 disposed in the unit chamber 2
3, the condenser 24 and the condenser fan constitute a refrigeration cycle together with an evaporator (not shown).

Further, the structure of the door will be described in detail with reference to FIGS.

Since the first door 3 and the second door 4 have the same basic structure, only the first door 3 will be described. In the drawing,
The parts related to the second door 4 are indicated by adding B to the corresponding part numbers.

In the first door 3, a gasket holder 26A made of a resin member is inserted around the entire circumference of the back surface flange 25A of the metal outer plate 24A, and the gasket holder 26 is inserted.
The inner panel 28A made of resin is brought into contact with the flange of A,
It is manufactured by foaming and filling the heat insulating material I between the outer plate 24A, the gasket holder 26A, and the door inner panel 28A.

Reference numeral 31A denotes an intermediate member which is attached to the gasket 26A in a connection relationship and which is used for mounting a gasket, which will be described later, on the outer peripheral side of the door, and is made of a resin member.

The intermediate member 31A has one side 32a inserted into the recess 33A of the gasket holder 26A,
After that, it is attached by being fastened to the rear surface flange of the first door 3 with a plurality of mounting screws 34A, and a recess 35A having the same shape as the recess 33A is formed on the other side. A gasket 15A with a built-in magnet is attached to the recess 35A by inserting the attachment root thereof.

Reference numeral 41 denotes a metal support plate for attaching the partition 19 to the first door 3, which is a vertical wall 42 projecting rearward.
In addition, it has a locking piece 23 bent inwardly on one side.

As shown in FIG. 3, the supporting plate 41 is fitted in the recess 33A of the gasket holder 26A with the engaging piece 23 together with the one side 32a of the intermediate member 31A, one end of which is fixed, and the other side thereof is fixed. The side portion is screwed to the reinforcing plate 44 embedded in the heat insulating material I through the door inner panel 28A with the screw 43.

The partition body 19 is formed by joining and assembling a three-divided partition element body in which a heat insulating material H is fitted into the inner recess of the frame member 45 having a U-shaped cross section. A steel plate 17A having a length that allows the upper and lower ends to slightly project from the partition body 19 is attached to the exposed surface of the heat insulating material H in contact with the exposed surface thereof. A dew condensation preventing heater 46 is provided on the back surface of the steel plate 17A. Further, on the upper part of the partition body 19, a resin actuating body 22A provided with the above-mentioned actuating groove 21A is attached.

The partition 19 is a hinge 4 provided on the upper and lower sides.
It is supported by 7, 48, and when the first door 3 is opened, it rotates in the direction of the arrow in FIG. The hinges 47 and 48 are the support plates 4
It is fixed to the side surface 42b of the vertical wall 42 by the screw 49. Reference numeral 51 indicates the hinge axis.

A rotatable partition body 1 attached in this manner
When the first door 3 having 9 is closed as shown in FIG. 5, the operating groove 21A is guided to the shaft 18 so that the partition 1
9 rotates counterclockwise about the hinge shaft 51, and both gaskets 15A, 15A and the steel plate 17A come into contact with each other and closely contact each other, thereby sealing the inside of the storage chamber 12.

On the other hand, when the first door 3 is opened, the shaft 18
As a result, the partition body 19 is rotated in the opposite direction, and finally the built-in coil spring or the like returns and rotates the partition body 19 to a position along the vertical wall 42 of the support plate 41. At the time of this return, a rubber cushion 52 is provided on the opposing surfaces of the partition 17 and the support plate 41 so as to prevent the side surface 41b of the support plate 41 from being impacted. Also, a metal support plate 4
Since the partition 19 is attached by using No. 1, the partition is structurally stronger and the durability can be improved as compared with the case where the partition is directly attached to the back surface of the conventional resin door. Furthermore,
In the restored partition body 19, the tip end 19b is set to a dimension a so as to be located in front of the tip of the vertical wall 42 by a dimension so as not to project from the vertical wall 42. As a result, when the first door 3 is closed, the vertical wall 42 comes into contact with the stored material first and the collision with the partition body 19 can be avoided, so that there is no concern that the partition body 19 is damaged and the partition body 19 cannot be used. . Numerals 54, 54 are caps which also serve as decorative members and are fixedly inserted into the upper and lower ends of the intermediate member 31A.

On the other hand, the third door 5 and the fourth door 6 shown in FIG.
Intermediate members 31A and 31 fixed to the first door 3 and the second door 4
B, the metal support plate 41, and the partition 19 are not provided. However, since these components are structurally equivalent to the first door 3 and the second door 4 except for these members, the corresponding members are appropriately indicated by C and D.

That is, the gasket 15B having a built-in magnet,
15B has a gasket base 26C, 2 with its mounting base
It is mounted by directly fitting it in the 6D recess. in this case,
Compared to the gaskets 15A and 15A of FIG. 3, the gaskets 15B and 15B are located closer to the inner side of the door than the third door 5, respectively.
It can be seen that it is arranged on the fourth door 6.

In order to have strength, the pillar 16
Will have a sufficient thickness and width, and the gaskets 15B, 15B have sufficient contact area with the support column 16, so that the gaskets 15B, 1
This is because even if 5B is mounted slightly inside the outer periphery of the door, sufficient sealing performance can be ensured.

The support 16 includes a front plate 57, a steel plate 17b provided with a dew condensation preventing heater 46b on the back surface, and both plates 5b.
It is formed by filling a heat insulating material G between resin breakers 58, 58 connecting 7 and 17b.

However, in the case of the first door 3 and the second door 4 which seal the storage chamber 12 by the rotatable partition body 19 instead of the support column 16, a wide internal volume, an inexpensive manufacturing cost, an improvement in assembling property, etc. Considering the above, it is appropriate that the partition body 19 is narrower in width and smaller in shape than the column 16.

Instead, the partition body 1 having a narrow contact area
In order to bring the gaskets 15B and 15B into close contact with each other, it is necessary to change the position of the gaskets 15A and 15A, that is, to provide the gaskets 15A and 15B at the outer peripheral edge positions of the first door 3 and the second door 4.

Therefore, in the case of the first door 3 and the second door 4, an intermediate member 31A for assisting the gasket holder mounting,
The gaskets 15A and 15A are mounted with the interposition of 31B, and the mounting position can be changed for mounting.

As a result, even if the partition 19 having a small shape is used, it is possible to obtain a door structure in which the sealing property is sufficiently ensured, and this door structure is compared with the third door 5 and the fourth door 6. Then, the intermediate members 31A and 31B and the gasket holders 15A and 15A, which are larger than the gaskets 15B and 15B of the third door 5 and the fourth door 6 by one turn, are required as additional parts. Almost shared,
Be economical.

Next, regarding the second aspect of the present invention in which the lead wire for supplying power to the heater for preventing the dew condensation of the partition body is wired to the door, FIG.
~ It demonstrates according to FIG.

In this embodiment, a door structure is used in which the intermediate member for assisting gasket mounting used in the first description is omitted. If the parts are the same, the corresponding number is
Will be added to the description to explain the main components.

As shown in FIG. 7, the resin door inner panel 28E is integrally formed with an outwardly L-shaped stepped portion 62 so as to surround substantially the outer circumference of the outer peripheral flange 61. Then, as shown in FIG. 9, the outer peripheral flange 61 of the door inner panel 28E is brought into contact with the outward flange 27E of the gasket holder 26E, and the heat insulating material I is foam-filled between the outer plate 24E, the gasket holder 26E, and the door inner panel 28E. Then, the door 60 is created.

When the door is formed, a heat insulating material 65 with a through hole 64 is inserted inside the upper corner of the support side of the door 60, and the gasket holder 26E and the door inner panel 2 are inserted.
It is integrally foamed together with 8E and embedded in the door 60 in advance.

Reference numeral 70 denotes a power supply lead wire connected to the dew condensation prevention heater 46E of the partition 19E by a connector (not shown). The power supply lead wire 70 is used for the partition 19
When it comes out from the lower hinge 48E of E, it is inserted from the opening 67 between the stepped portion 62 provided on the outer peripheral flange of the door inner panel 28E and the recessed portion 33E forming portion 66 of the gasket holder 26E, and the stepped portion is inserted. It is placed in the space 68 in 62 and is arranged along the edge of the door 60, and the heat insulating material 6
Wiring is performed by passing through the through hole 64 of No. 5 and through the inside of the hinge shaft 81 of the upper hinge 80 for supporting the door 60 to an external electrical equipment box or the like.

When the gaskets 15E, 15E are mounted by fitting their mounting bases into the recesses 33E of the gasket holder 26E, the openings 67 are provided in the gasket 1
It is closed at 5E and is not exposed to the outside, and the appearance is maintained.

The partition body 1 thus attached to the door 60
The 9E dew-prevention heater 46E and other electrical components can be easily wired without embedding them in the door insulation material so that they can be easily replaced when replacing the heater 46E for safety and serviceability. It is possible to improve the door structure.

[0045]

As described above, according to the present invention, among a plurality of storage chambers opened and closed by a double door, if one storage chamber is not partitioned by a support column, the support column is required. A narrow partition that replaces the above, a metal support plate that rotatably supports this, a gasket that is larger than the gasket of the door that abuts the stanchion, and an intermediate member that attaches this to the door as a target You can achieve it just by doing. Therefore, it is possible to provide a commercial refrigerator in which the door can be commonly used, the cost is low and the assembly is easy, and the storage room with or without partitions can be arranged and configured according to needs.

Further, the lead wire for supplying power to the dew condensation preventing heater provided on the partition body can also be wired along the peripheral edge of the back surface of the door without passing through the heat insulating material inside the door as in the conventional case. ,
Wiring work and serviceability can be improved.

[Brief description of drawings]

FIG. 1 is an external perspective view of a commercial refrigerator including a storage room partitioned by fixed columns and a storage room without a partition that is opened and closed by a door having a rotatable partition structure.

FIG. 2 is an exploded perspective view of a door having a partition body.

FIG. 3 is a cross-sectional view of a main part around a partition body.

FIG. 4 is a cross-sectional view of a main part around a column.

FIG. 5 is a cross-sectional view of essential parts showing the relationship between the end surface of the partition body and the shaft and the rotating state.

FIG. 6 is an exploded perspective view of a door having a rotating portion of a lead wire for supplying power to a dew condensation preventing heater.

FIG. 7 is a rear perspective view of a door panel having a stepped portion related to storage of a power supply lead wire and a door integrally foamed using the door panel.

FIG. 8 is a perspective view showing a configuration of a door in which a partition is attached to the door and a power supply lead wire is processed.

FIG. 9 is a cross-sectional view of a main part of a partition body in which a lead wire for power supply has been wired and mounting is completed.

[Explanation of symbols]

 3, 4, 5, 6 Doors 15A, 15B Gaskets 16 Struts 18 Shafts 19 Partitions 21A Operating grooves 26A, 26B, 26C, 26D Gasket holders 28A, 28E Door inner panels 31A, 31B Intermediate members 41 Support plates 46, 46b, 46E Dew condensation prevention heater 62 Stepped portion 67 Opening portion 68 Space portion 70 Power supply lead wire

Claims (2)

[Claims] 1. A double door that is rotatably supported on both sides of the opening of the heat insulating box so as to close the opening of the heat insulating box, and gaskets that are respectively provided on the peripheral edges of the rear surfaces of the two doors and contact the peripheral edges of the opening. A shaft vertically projecting toward the inside of the compartment at the position of the opening edge corresponding to the unsupported side of the one door, and a metal support on the back surface of the unsupported side portion of the one door. The plate extends vertically in a length extending over the opening edge portion and is rotatably supported. The door is engaged with the shaft to rotate when the door is closed, and the other door and the back surface of the door. And a narrow partition body having a curved operating groove for abutting with each other, and an intermediate member for mounting a gasket, which is respectively provided on the peripheral edges of the back surfaces of the both doors and holds the gasket at a position where the gasket contacts the partition body. A refrigerator for business use, which is equipped with. 2. A partition body rotatably attached to the unsupported side of one of the double doors of the gannon door, which is rotatably supported on both sides of the opening so as to close the opening of the heat insulating box. A commercial refrigerator, comprising: a dew-prevention heater provided in the partition body; and a storage section that is provided at a peripheral edge of a back surface of the one door and stores a power supply lead wire of the heater.