JPH08334287A - Biparting type refrigerator - Google Patents

Abstract

PURPOSE: To adopt a hinge made of metal, and improve the durability of the hinge by a method wherein for a biparting type refrigerator, freezing of the hinge which is a supporting means for a first door of a closing member to close a gap between both leading ends of right and left both doors when the both doors are closed, is prevented from happening. CONSTITUTION: A cord heater 25 is arranged at an area 21b1 of a closing member 20 to which a movable side member 32 constituting a hinge 30 is attached, and the freezing of the hinge 30 is prevented from happening by the heating action of the cord heater 25, and the adoption of the hinge 30 made of metal becomes possible.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art As one type of a double-door type refrigerator, as shown in Japanese Patent Laid-Open No. 6-42859, a cabinet main body having a front opening and base ends on left and right side edges of the cabinet main body. The left and right first and second doors, which are assembled so as to be rotatable in the front-rear direction and open and close the front opening of the same body, and inward and outward on the inner surface side of the tip of the first door. It is rotatably assembled and extends vertically along the tip of the first door, and projects outward from the tip of the first door along the inner surface of the first door when rotating outward. A columnar closing member that retracts from the front end of the door when rotating inward, and rotation of the first door to the closing side provided at approximately the center of the upper and lower edges of the opening of the storage body. When the closing member is rotated outward, it is provided with a guide member for positioning the closing member along the inner surface of the first door. There is a refrigerator.

In the refrigerator, the closing member projects outward from the front end of the first door with the first door closed and faces the inner surface side of the front end of the second door to close the second door. In the closed state, it functions to close the gap between the opposite ends of the door and the first door to seal the two doors. Such a closing member is a synthetic resin U-shaped body,
It is composed of a metal abutting plate fixed to the back of the main body and forming a hollow columnar body together with the main body, and a heat insulating member filled in the hollow portion of the main body, and the closing member is A hinge made of synthetic resin is adopted as the hinge that rotatably supports the first door.

[0004]

By the way, in the refrigerator, since the hinge made of synthetic resin is adopted as the hinge, the frequency of opening and closing of the door is high regardless of the use condition in which the frequency of opening and closing of the door is low. In use, the hinge is likely to be damaged, and particularly when the refrigerator is used for business purposes, there is a problem that the door is opened and closed frequently and the hinge is damaged early because of frequent opening and closing of the door.

In order to deal with such a problem, it is conceivable to adopt a metal hinge as the hinge. However, when both hinges are closed, there is a risk that the hinge will be directly exposed to the cold air of the cabinet and frozen. If the hinge is frozen and the door is opened, there is a problem that the frozen member cannot rotate due to the frozen hinge.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to prevent the hinge from freezing in the above-mentioned double-door type refrigerator and to enable the use of a metal hinge, thereby improving the durability of the hinge.

[0007]

SUMMARY OF THE INVENTION According to the present invention, there is provided a cabinet main body having a front opening, and base ends of the cabinet main body which are attached to left and right side edges of the cabinet main body so as to be rotatable in the front-rear direction. Left and right first and second doors for opening and closing the front opening of the main body, and an end of the first door that is rotatably assembled inward and outward on the inner surface side of the tip of the first door. A columnar shape that extends vertically along the portion and projects outward from the tip of the first door along the inner surface of the first door when pivoting outward and retracts from the tip of the door when pivoting inward And the closing member, which is provided substantially at the center of the upper and lower edges of the opening of the cabinet body, and is rotated outward when the first door is rotated toward the closing side. In a double-door type refrigerator having a guide member positioned along the inner surface of the door, the closing member is rotatably supported on the first door. A hinge made of metal is used as the hinge to fix the fixed side member forming the hinge to the inner surface side of the tip portion of the first door, and the movable side member forming the hinge is fixed to the closing member. It is characterized in that a heater for fixing to the side surface side and arranging a heater for heating the same portion of the closing member corresponding to the fixed portion of the movable side member of the hinge is provided.

In the refrigerator according to the present invention, the closing member includes a metal front frame having a substantially U-shaped cross section,
A rear frame made of synthetic resin, which has a substantially U-shaped cross section and is fitted to the front frame to form a hollow columnar body, a heat insulating member filled in the hollow portion of the columnar body, and the front frame It is preferable that a heater is provided for heating the front surface of the above and the fixed portion of the movable side member of the hinge. Further, in the refrigerator according to the present invention, the rear frame is formed in a shape to be fitted onto the front frame, and a cutout portion is formed at a predetermined portion of a side surface of the rear frame, so that a side surface of the front frame is formed. It is preferable that a part of the heater is provided at a portion corresponding to the cutout portion of the rear frame and the same portion is formed as a fixed portion of the movable side member of the hinge.

[0009]

In the double-door type refrigerator constructed as described above, the hinge supporting the closing member on the first door is heated by the heater arranged on the closing member.
It is not frozen by the cold air inside the cabinet. Therefore, in the refrigerator, a metal hinge can be adopted as the hinge, and the strength and durability of the hinge can be improved.

Further, in the refrigerator, a hollow columnar body is formed by fitting the closing member to a metal front frame having a substantially U-shaped cross section and a front frame having a substantially U-shaped cross section. If a structure is provided that includes a rear frame made of a synthetic resin that forms, a heat insulating member that fills the hollow portion of the columnar body, and a heater that heats the fixed portion of the front side of the front frame and the movable side member of the hinge, The durability of the closing member can be improved, and the heating action of the heater can simultaneously prevent dew condensation on the front side surface of the closing member and freeze prevention of the hinge.

Further, in the refrigerator, the rear frame forming the closing member is formed in a shape to be fitted onto the front frame, and a notch is formed at a predetermined portion of the side surface of the rear frame to form a side surface of the front frame. By disposing a part of the heater at a portion corresponding to the cutout portion of the rear side frame in and forming the same portion as the fixed portion of the movable side member of the hinge,
The heating action of the heater disposed on the closing member can be effectively used for preventing the hinge from freezing.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a refrigerator according to the present invention. The refrigerator is a double-sided refrigerator, as shown in FIG.
Shows a front surface in a state in which both upper doors and both lower doors are closed, and FIG. 6B shows a front surface in a state in which only the upper left door on the left side of these doors is opened.

The refrigerator is provided with two upper and lower refrigerating chambers, and the refrigerator main body 11 has front opening portions 11a and 11b at its upper and lower portions, and left and right opening / closing upper front opening portions 11a. A pair of first and second doors 1
2, 13 and a pair of left and right first and second doors 14 and 15 for opening and closing the front opening 11b on the lower side. Each first
The doors 12 and 14 are rotatably supported in the front-rear direction on the right edge of each opening 11a and 11b of the storage body 11 at the right edge that is the base end thereof, and each second door 13 is provided. , 15
Are rotatably supported in the front-rear direction on the left edge of each of the openings 11a and 11b of the cabinet body 11 at the left edge that is the base end thereof. On the other hand, a closing member 20 extending in the vertical direction is rotatably supported in the front-rear direction on the inner surface side of the tips of the right first doors 12, 14.

The upper doors 12 and 13 open and close the front opening 11a of the cabinet body 11 by rotating in the front-rear direction. When both doors 12 and 13 are rotated rearward, The front opening 11a of the cabinet main body 11 is closed, and in this closed state, the left end of the first door 12 and the right end of the second door 13 face each other with a predetermined gap therebetween. In addition, the closing member 20 rotates outward and is positioned between the front end portions of the doors 12 and 13 to close the gap between the front end portions. As a result, the seal members provided on the entire outer peripheral edge portions of the inner surfaces of the both doors 12 and 13 are closed by the opening 11 of the storage body 11.
The entire outer peripheral edge of a and the front surface of the closing member 20 are brought into contact with each other to seal the opening 11a of the storage body 11.

Similarly, the lower doors 14 and 15 also open and close the front opening 11b of the cabinet body 11 by rotating in the front-rear direction, so that both doors 14 and 15 are rotated rearward. In the closed state, the front opening 11b of the cabinet body 11 is closed, and in this closed state, the left end of the first door 14 and the right end of the second door 15 maintain a predetermined gap therebetween. Opposingly, the closing member 20 pivots outward and is positioned between the front ends of both doors 14 and 15 to close the gap between the front ends. As a result, the seal members provided on the entire outer peripheral edge portions of the inner surfaces of the both doors 14 and 15 come into contact with the entire outer peripheral edge portions of the opening 11b of the storage body 11 and the front surface of the closing member 20, and the opening of the storage body 11 is opened. The part 11b is sealed.

The upper doors 12 and 13 and the closing member 20 and the lower doors 14 and 15 and the closing member 20 have the same structure and the same assembling structure. Is a detailed description of both doors 12 and 13 for opening and closing the front opening 11a on the upper side of the cabinet main body 11, the closing member 20, and the components related thereto,
Both doors 1 for opening and closing the front opening 11b on the lower side of the cabinet body 11
A detailed description of the components 4, 15 and the closing member 20 and the components related thereto will be omitted, and only those components will be described as necessary.

As shown in FIGS. 2 to 4, the closing member 20 is supported by the first door 12 via the hinges 30 at the upper and lower end portions thereof. The closing member 20 is shown in FIGS.
As shown in FIG. 8, a metal front frame 21, a synthetic resin rear frame 22, a heat insulating sheet 23, and a heat insulating material 2
4, a cord heater 25, and a pair of upper and lower guided members 26. Both the frames 21 and 22 have a substantially U-shaped cross section, and the heat insulating material 24 is inserted into the front side frame 21 in which the heat insulating sheet 23 is attached to the inner surface, and from the rear side of the front side frame 21 in this state. The rear frame 22 is externally fitted to form a columnar body. Closure member 2
0 is formed by attaching the guided member 26 to the upper and lower end portions of this columnar body through the packing 27.

The code heater 25 is a heater for preventing dew condensation, and is a front surface 21a and a right side surface 2 of the front frame 21.
It is attached and arranged inside 1b. The main body portion 25a of the cord heater 25 is disposed on substantially the entire inner side surface of the front surface 21a, and the upper and lower branch portions 25 of the cord heater 25 are arranged.
b is the upper and lower hinge mounting portions 21b1 on the right side surface 21b.
Is disposed on the inner surface of the. On the other hand, the rear frame 22 has a pair of upper and lower cutout recesses 22a1 on one side surface 22a thereof. The notch recess 22a1 has a rectangular shape,
When the rear frame 22 is fitted to the front frame 21, it corresponds to the hinge mounting portion 21b1 of the front frame 21.

The guided member 26 has a protrusion 26b, a sheet-like seal portion 26c, and a suction portion 26d on the upper surface of a base 26a. In the upper guided member 26, the guided portion 26b is formed so as to project upward by a predetermined length at the front edge of the base 26a, and the sealing portion 26c.
Projects further upward by a predetermined length on the front surface of the guided portion 26b. In the lower guided member 26, the guided portion 26b is formed to project downward by a predetermined length at the front edge of the base 26a, and the sealing portion 26c is further lowered at the front surface of the guided portion 26b. To a predetermined length. The attraction portion 26d is formed by a pair of attraction plates and a magnet between them, and slightly protrudes rearward from the rear surface of the base 26a.

The hinge 30 is made of metal and is shown in FIGS.
Further, as shown in FIG. 8, it is composed of a fixed side member 31 and a movable side member 32. The fixed-side member 31 has a mounting plate portion 31b integrally provided with mounting arm portions 31a at upper and lower ends thereof.
And is fixed to the back surface side of the first door 12 via a mounting bracket 31d. Mounting arm part 31
An insertion hole 31c is formed at the tip of a. on the other hand,
The movable side member 32 is mainly composed of a pair of upper and lower mounting plate portions 32d and 32e each having a mounting arm portion 32a and hinge pins 32b and 32c at the upper end thereof, and a hinge mounting portion 21b1 of the front frame 21 of the closing member 20.
It is fixed to. Both hinge pins 32b and 32c are opposed to each other and extend in the up-down direction and are coaxially positioned, and the hinge pin 32b is formed so as to be able to pass through the insertion hole 31c in the mounting arm portion 31a of the fixed side member 31. . It should be noted that the lower hinge is constructed in an upside-down relationship with the hinge 30.

The fixed member 31 is supported at its upper and lower ends in a state in which the hinge pin 32b of the mounting plate portion 32d is inserted through the bearing 33a into the insertion hole 31c provided in the mounting arm portion 31a. , Mounting plate 3
The tip of the hinge pin 32b is inserted into the tip of the sleeve 33b that is inserted into the hinge pin 32c of 2e, and is supported in this state via the mounting bracket 31d.
The closing member 20 is attached to the inner surface of the door 12 so that the first door 1
It is rotatably supported at 2. Further, a torsion spring 33c is fitted around the outer circumference of the sleeve 33b,
One end of the torsion spring 33c is hooked on the fixed side member 31 side, and the other end is hooked on the movable side member 32, and the closing member 20 is attached inward (clockwise in FIGS. 2 and 3). I am energetic.

In the refrigerator thus constructed,
When the first door 12 is opened, the closing member 20 is rotated inward by the urging force of the torsion spring 33c, and as shown in FIG. It is adsorbed by the plate 12a and fixed to the first door 12 side. In this state, if the first door 12 is closed,
The guided portion 26b of the guided member 26 on the closing member 20 side
The front end of the contact member abuts on the front surface of the guide member 11c provided at the substantially central portion of the opening 11a on the side of the cabinet main body 11 and slides on the front surface. During this time, the closing member 20 is pressed outward against the torsion spring 33. Therefore, the closing member 20 overcomes the suction force of the suction portion 26d and separates from the mounting plate 12b of the first door 12, and the torsion spring 33c.
It is rotated outward against. In the state in which the first door 12 is completely closed, the closing member 20 is not shown in FIGS.
As shown in FIG. 3, the seal member 12 is located along the inner surface of the first door 12 and has its front surface 21 a provided on the inner surface of the first door 12.
It is brought into contact with the part on the tip side of b.

In this case, when the second door 13 is in the closed state, the tip of the front surface 21a of the closing member 20 has the second door 13 closed.
The seal member 13a provided on the
When the second door 13 is in the open state, the closing member 20 is located along the inner surface of the first door 12 and is in contact with a part of the seal member 12b of the first door 12, When the door 13 is closed, the portion of the second door 13 on the tip end side of the seal member 13a comes into contact with the front surface 21a of the closing member 20.

As a result, when both doors 12 and 13 are closed, the space between the front ends of both doors 12 and 13 is airtightly closed by the closing member 20, and the front peripheral edge of the front opening 11a of the cabinet body 11 is closed. The parts are hermetically closed via seal members 12b and 13a provided on both doors 12 and 13, respectively. Further, in the guided member 26 of the closing member 20, the rear surface of the guided portion 26b is provided in the storage body 11 as the guide member 1.
Located in contact with the front surface of 1c,
The leading end of the seal portion 26c provided on the guided member 26 abuts on the edge of the front opening 11a of the storage body 11, and the leading end of the guided member 26 and the front opening 11a of the storage body 11a.
The air gap is closed in a gap with the edge of the.

In the refrigerator, the cord heater 25 provided in the closing member 20 is constantly energized during the operation time.
As a result, the front surface 21a of the closing member 20 that is cooled by the cool air in the cabinet body 11 is heated, and the front surface 21a of the closing member 20 is heated.
In addition to the prevention of dew condensation, the mounting portion 21b1 of the hinge 30 on the movable side member 32 side is heated to prevent the movable portion of the hinge 30 from freezing.

As described above, in the refrigerator, the hinge 30 is not frozen by the cold air in the storage body 11 due to the heating action of the cord heater 25 provided in the closing member 20. Therefore, in the refrigerator, a metal hinge can be used as the hinge 30,
The strength and durability of the hinge can be improved.

Further, in the refrigerator, the closing member 20
A metal front frame 21 having a substantially U-shaped cross section,
A rear frame 22 made of synthetic resin which has a substantially U-shaped cross section and is fitted with the front frame 21 to form a hollow columnar body;
The heat insulating member 24 filled in the hollow portion of the columnar body, the front surface 21a of the front frame 21 and the movable member 3 of the hinge 30.
Since the cord heater 25 for heating the second mounting portion 21b1 is provided, the durability of the closing member 20 can be improved, and the heating action of the cord heater 25 can prevent dew condensation on the front surface 21a of the closing member 20. The prevention of generation and the prevention of freezing of the hinge 30 can be achieved at the same time. In this case, the rear frame 2 that constitutes the closing member 20
The notch recess 22a1 is formed in a predetermined portion of the side surface 22a of the second frame 22, and the cord heater 25 is provided at the mounting portion 21b1 corresponding to the notch recess 22a1 on the side surface 21b of the front frame 21.
Since the branch portion 25b is provided, it is possible to more effectively utilize the heating action of the code heater 25 provided in the closing member 20 and to prevent the hinge 30 from freezing.

[Brief description of drawings]

FIG. 1 is a front view (a) showing a state in which both upper doors and lower doors of a double door refrigerator according to an embodiment of the present invention are closed, and a second upper door of the refrigerator is open. It is a front view (b).

FIG. 2 is a partially enlarged cross-sectional plan view of the same refrigerator with an upper first door opened.

FIG. 3 is a partially enlarged cross-sectional plan view of the refrigerator with both upper doors closed.

FIG. 4 is a partially enlarged perspective view of the refrigerator as viewed from the inside with both upper doors closed.

FIG. 5 is a partially enlarged front view (a) of a closing member which constitutes the refrigerator and a partially enlarged side view of the closing member.

FIG. 6 is an enlarged exploded perspective view of the closing member.

FIG. 7 is an enlarged rear view of the inside of the front surface of the front frame showing the arrangement state of the cord heaters constituting the closing member (a), and an enlarged side view of the inside of the same side surface (b).
Is.

FIG. 8 is an enlarged exploded perspective view of an upper hinge that supports the closing member.

[Explanation of symbols]

11 ... Cabinet main body, 11a, 11b ... Opening part, 11c ... Guide member, 12, 14 ... First door, 13, 14 ... Second door, 2
0 ... Blocking member, 21 ... Front frame, 21a ... Front surface, 2
1b ... right side surface, 21b1 ... hinge mounting portion, 22 ... rear frame, 22a ... right side surface, 22a1 ... notch recess, 24 ...
Heat insulating member, 25 ... Heater, 26 ... Guided member, 30 ...
Hinge, 31 ... Fixed side member, 32 ... Movable side member.

Claims (3)

[Claims] 1. A cabinet main body having a front opening and a base end rotatably mounted in left and right side edges of the cabinet main body in the front-rear direction to open and close the front opening of the cabinet main body. The left and right first and second doors are attached to the inner surface of the front end of the first door so as to be rotatable inward and outward, and extend vertically along the front end of the first door. A columnar closing member that protrudes outward from the tip of the first door along the inner surface of the first door when rotating outward, and retracts from the tip of the door when rotating inward, and the storage body. Is provided at approximately the center of the upper and lower edges of the opening of the first door and is rotated along the inner surface of the first door by rotating the closing member outward when the first door is rotated toward the closing side. In a double-door type refrigerator having a guide member for allowing the closing member to rotate, a metal hinge is used as a hinge for rotatably supporting the closing member on the first door. And the movable side member forming the hinge is fixed to the side surface side of the closing member, and the fixed side member forming the hinge is fixed to the inner surface side of the tip end portion of the first door. A double-door type refrigerator having a heater for heating the movable member of the hinge at a position corresponding to the fixed portion of the closing member in the closing member. 2. The double door refrigerator according to claim 1, wherein the closing member is fitted to a metal front frame having a substantially U-shaped cross section and a front frame having a substantially U-shaped cross section. The rear frame made of synthetic resin that forms a hollow columnar body, the heat insulating member filled in the hollow portion of the columnar body, the front surface of the front frame and the fixed portion of the movable side member of the hinge are heated. A double-sided refrigerator that has a heater that operates. 3. The double door refrigerator according to claim 2, wherein the rear frame is formed into a shape to be fitted onto the front frame, and a notch is formed at a predetermined portion on a side surface of the rear frame. A part of the heater is disposed at a portion of the side surface of the front frame corresponding to the cutout portion of the rear frame, and the heater portion is formed as a fixed portion of a movable side member of the hinge. Refrigerator.