JP6389398B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator.

  One of the door opening and closing methods for opening and closing the opening of the storage room provided in the refrigerator is a hinge type that opens and closes the door by rotating it around a pin that sandwiches the door from above and below. The hinge type door is provided with an upper hinge and a lower hinge at the upper and lower parts of the door, respectively. Even if the hinge-type door has a relatively large area, it can be opened and closed with a small force. In recent refrigerators, the hinge-type door is mainly used in a refrigerator room located at the uppermost stage.

  In Patent Document 1, when the handle mounting frame is temporarily fixed to the extrusion frame forming three sides via the frame metal fitting, the frame metal fitting is integrally formed with the reinforcing members attached to the upper side and the lower side of the extrusion frame. A refrigerator door characterized in that is described.

Japanese Patent No. 3303518

  In recent years, space saving in the lateral direction of refrigerators has been demanded. In a refrigerator that saves space in the lateral direction, the side shape of the refrigerator door is flatter from an aesthetic point of view. However, if the side surface shape of the refrigerator door is changed to a flatter shape, there is a problem that it is not possible to secure the installation space for the door drop-off prevention fitting.

  This invention is made | formed in view of such a situation, It aims at providing the refrigerator which aims at the space saving of the horizontal direction of a refrigerator, and prevents a door drop-off.

In order to solve the above problems, the refrigerator of the present invention includes a hinge member that rotates the door so that the door can be opened and closed with respect to the refrigerator body, and the hinge member is fixed to the refrigerator body side; A second hinge member fixed to the door side of the refrigerator, and a cylindrical pivot shaft serving as a rotation center when the first hinge member and the second hinge member rotate relatively. the second hinge member, e Bei the bottomed cylindrical portion for supporting said pivot shaft rotatably, a bar-like member protruding from said bottomed cylindrical portion inside the bottom in the cylindrical inside of the pivot shaft, the Even when the second hinge member is pulled outward and deformed or damaged, the rod-like member is prevented from falling off by being caught on the inner wall of the pivot shaft inside the cylinder .

  ADVANTAGE OF THE INVENTION According to this invention, the space saving of the horizontal direction of a refrigerator can be achieved and the refrigerator which prevents a door drop-off can be provided.

It is a front view of the refrigerator which concerns on embodiment of this invention. It is a perspective view which shows the structure of the upper hinge of the refrigerator door right door of the refrigerator which concerns on the said embodiment. It is a perspective view which shows the structure of the upper end piece of the refrigerator compartment right door of the refrigerator which concerns on the said embodiment. It is a perspective view which shows the fall-off prevention structure of the refrigerator door right door of the refrigerator which concerns on the said embodiment. It is BB sectional drawing of FIG. It is a perspective view which shows the fall-off prevention structure of the refrigerator compartment right door of the refrigerator of a comparative example. It is a perspective view which shows the fall-off prevention structure of the refrigerator compartment right door of the refrigerator of a comparative example. It is the figure which looked at the upper hinge part which removed the hinge cover of the refrigerator main body of the comparative example from upper direction. It is the figure which permeate | transmitted the upper end piece of the refrigerator main body of the comparative example, and looked at the metal-fitting part from upper direction.

Hereinafter, a form (this embodiment) for carrying out the present invention will be described. However, the present embodiment is not limited to the following contents, and can be arbitrarily changed and implemented without departing from the gist of the present invention.
First, a comparative example will be described.

6 and 7 are perspective views showing a structure for preventing the right door of the refrigerator compartment from falling off according to a comparative example.
As shown in FIG. 6, a refrigerator compartment right door 1300 is provided in front of the refrigerator main body 1000. An upper end piece 1310 is provided in the upper part of the refrigerator door right door 1300, and a right side piece 1320 is provided on the right side of the refrigerator compartment right door 1300. The upper end piece 1310 and the right side piece 1320 are resin materials and are connected at the corners.
An upper hinge 1100 is fixed to the top surface 1000 a of the refrigerator main body 1000. The upper hinge 1100 includes an upper hinge pin (pivot shaft) 1110 that is an upper hinge shaft serving as a rotation center when the upper hinge 1100 and the lower hinge (not shown) rotate relatively. The upper hinge pin (pivot shaft) 1110 is inserted into the right side piece 1320 at the corner between the upper end piece 1310 and the right side piece 1320.
The right side piece 1320 is opened to the outer curved portion (curved surface portion) 1321 curved so as to be flush with the right side surface 1000b from the front of the refrigerator main body 1000, the upper end surface 1322 horizontally closing the upper end, and the upper end surface 1322. And a circular opening 1323 that allows the upper hinge pin 1110 to communicate with the upper hinge 1100. The outer curved portion (curved surface portion) 1321 is curved so that the right end portion of the refrigerator compartment right door 1300 visually gives a sense of unity with the refrigerator main body 1000 when the refrigerator compartment right door 1300 is opened and closed.

As shown in FIG. 7, a flat plate portion 1311 that is inserted into the back surface of the upper end surface 1322 of the right side piece 1320 is formed at the right end of the upper end piece 1310. The flat plate portion 1311 includes an end surface 1311a curved along the inner surface of the outer curved portion (curved surface portion) 1321 of the right side piece 1320, a circular opening portion 1311b through which the upper hinge pin 1110 of the upper hinge 1100 is inserted, and a reinforcing rib. 1311c is formed.
A cylindrical hinge pin accommodating portion 1312 that accommodates the upper hinge pin 1110 of the upper hinge 1100 protrudes downward from the outer periphery of the opening 1311b of the flat plate portion 1311. As shown in FIG. 6, the upper hinge pin 1110 of the upper hinge 1100 passes through the opening 1323 of the right side piece 1320 and is inserted into the hinge pin accommodating portion 1312 of the flat plate portion 1311 of the upper end piece 1310.

  As shown in FIGS. 6 and 7, the refrigeration room right door 1300 is detached from the upper hinge pin 1110 on the inner side of the upper end piece 1310 even when an unexpected force is applied to the refrigeration room right door 1300. A metal fitting 1313 that prevents the door from falling off is attached so as not to be stripped. The metal fitting 1313 includes a mounting portion 1313a on the back surface of the upper end piece 1310, a circular mounting portion 1313b that covers the outer periphery of the hinge pin housing portion 1312, a step portion 1313c that forms a step between the mounting portion 1313a and the mounting portion 1313b, Have As shown in FIG. 7 (c), the metal fitting 1313 has a mounting portion 1313a fitted in a recessed portion 1311c formed on the back surface of the upper end piece 1310, and the stepped portion 1313c of the metal fitting 1313 prevents the metal 1313 from being pulled outward. Is done. The attachment portion 1313a is locked to the recessed portion 1311c by a claw portion 1311d (see FIG. 7C) formed around the recessed portion 1311c.

  In the above configuration, the right side piece 1320 itself is damaged by impact or a large external force is applied to the door (refrigeration room right door 1300) to cause the right side piece 1320 or the upper end to be damaged. When the piece 1310 breaks, it is conceivable that the hinge pin accommodating portion 1312 is also pulled outward and deformed or damaged. Even in such a case, since the metal fitting 1313 fixed to the upper end piece 1310 is attached to the outer periphery of the hinge pin accommodating portion 1312, the metal pin 1313 prevents the hinge pin accommodating portion 1312 from being deformed outward. At the same time, the metal fitting 1313 is caught by the upper hinge pin 1110, and the upper hinge pin 1110 is prevented from falling off. That is, even if the right side piece 1320 and the upper end piece 1310 are broken and the hinge pin housing portion 1312 is damaged, the upper hinge pin 1110 is caught by the metal fitting 1313 portion, so that the refrigerator compartment right door 1300 is detached from the upper hinge 1100. Can be prevented.

Next, the problem of the comparative example will be described.
FIG. 8 is a view of the upper hinge 1100 portion from which the upper hinge cover of the refrigerator main body of the comparative example is removed as viewed from above. The dimension L in FIG. 8A is the gap from the side surface of the refrigerator main body 1000 to the wall, and the dimension a is the distance between the center O of the upper hinge pin (pivot shaft) 1110 and the outer curved portion 1321 of the right side piece 1320. Show. 8B indicates the distance between the center O of the upper hinge pin 1110 and the outer curved portion 1321 of the right side piece 1320 in the refrigerator that saves space in the horizontal direction. Moreover, in the refrigerator which aimed at the space saving of the horizontal direction shown in FIG.8 (b), as can be seen compared with Fig.8 (a), the curve shape of the outer curve part 1321A is flatter from an aesthetic point of view. It has become a shape.
As shown in FIG. 8B, in order to save space in the lateral direction of the refrigerator, it is necessary to make the dimension L at the time of opening and closing the door smaller than in the case of FIG. In order to reduce the dimension L, it is necessary to secure a layout in which the dimension a is smaller than in the case of FIG.

FIG. 9 is a view of the metal fitting 1313 viewed from above through the upper end piece 1310 of the refrigerator main body 1000 (see FIG. 6) of the comparative example. FIG. 9A corresponds to FIG. 8A, and FIG. 9B corresponds to FIG. 8B.
As shown in FIG. 9A, when there is a dimension a between the center O of the upper hinge pin 1110 and the outer curved portion 1321 of the right side piece 1320, the dimension c of the installation space of the metal fitting 1313 is ensured. However, when the curved shape of the outer curved portion 1321A is changed to a flatter shape as shown by a circled d in FIG. ) Cannot be secured, and there is a problem that the fitting 1313 cannot be assembled. Moreover, when the dimension c is insufficient, the metal fitting 1313 and the inner surface of the right side piece 1320 interfere with each other, and the right side piece 1320 may be deformed or stagnate.

  As described above, in the refrigerator main body 1000 of the comparative example, in order to save space in the lateral direction and improve the appearance of the appearance, when the side shape of the refrigerator door is made flat, it prevents the door from falling off. Since the installation space for the metal fitting 1313 cannot be secured, the metal fitting 1313 cannot be installed. If the metal fitting 1313 cannot be installed, it is difficult to prevent the door from falling off. As a result, it has been difficult to save space in the lateral direction of the refrigerator and prevent the door from falling off.

Hereinafter, this embodiment will be described.
[Composition of refrigerator]
FIG. 1 is a front view of the refrigerator of the present embodiment. A refrigerator 100 shown in FIG. 1 includes a refrigerator compartment left door 2, a refrigerator compartment right door 3, an ice making compartment door 4, a freezer compartment upper door 5, a freezer compartment lower door 6, and vegetables on the front of the refrigerator body 1. A room door 7 is provided.
An upper hinge 8 is provided at the upper part of the refrigerator compartment left door 2, and a lower hinge 9 is provided at the lower part. An upper hinge 10 is provided at the upper part of the right door 3 of the refrigerator compartment, and a lower hinge 11 is provided at the lower part.
The refrigerating room left door 2 can be rotated forward by the upper hinge 8 and the lower hinge 9. Furthermore, the refrigerator door right door 3 can be rotated forward by the upper hinge 10 and the lower hinge 11. That is, the refrigerator compartment left door 2 and the refrigerator compartment right door 3 are provided so as to be able to open the door, and a refrigerator compartment (not shown) is formed in a space formed by these and the refrigerator body 1.

  In addition, the ice making room door 4, the freezer compartment upper door 5, the freezer compartment lower door 6, and the vegetable compartment door 7 can be pulled out toward the front of the page. And in the space formed by these and the cabinet of the refrigerator main body 1, the freezer compartment upper stage, the freezer compartment lower stage, and the vegetable compartment (all are not shown) are formed, respectively. The cabinet is a combination of an inner box and an outer box, and a heat insulating member is sandwiched between them to form a heat insulating box.

  Here, the upper hinge 10 of the refrigerator compartment right door 3 has a door drop-off prevention structure described later, but the upper hinge 8 of the refrigerator compartment left door 2 does not have such a door drop-off prevention structure. That is, in this embodiment, the refrigerator 100 has a touch panel in front of the refrigerator compartment left door 2, and a wiring cable extending from the touch panel substrate or the like is wired inside the refrigerator compartment left door 2, The structure extended to the top | upper surface 1a of the refrigerator main body 1 through the axial center of a hinge pin (illustration omitted) is taken. With this configuration, with respect to the refrigerator compartment left door 2, the wiring cable is caught by the upper hinge pin to prevent the refrigerator compartment left door 2 from falling off. Needless to say, a door drop-and-swell structure similar to the upper hinge 10 of the refrigerator compartment right door 3 may be applied to the refrigerator compartment left door 2.

An example in which the door dropout prevention structure of the present embodiment is applied to the upper hinge 10 of the refrigeration room right door 3 will be described. In addition, it cannot be overemphasized that this door drop-off prevention structure is applicable to the refrigerator compartment left door 2 and other doors similarly.
Moreover, since this door drop-off prevention structure is intended for the upper hinge, the lower hinge 9 of the refrigerator compartment left door 2 and the lower hinge 11 of the refrigerator compartment right door 3 may have any configuration. The lower hinge 9 and the lower hinge 11 are symmetrical and adopt the same structure.

[Refrigerator right door structure]
2 is a perspective view showing a structure of the upper hinge 10 of the right door 3 of the refrigerator compartment. FIG. 2A is a diagram with the upper hinge cover attached, and FIG. 2B is a diagram with the upper hinge cover removed. It is.
As shown in FIG. 1 and FIG. 2, an upper end piece 31 is provided on the upper part of the refrigerator compartment right door 3, and a right side piece 32 is provided on the right side of the refrigerator compartment right door 3. The upper end piece 31 and the right side piece 32 are resin materials. The right end portion of the upper end piece 31 and the upper end portion of the right side piece 32 are combined to form the upper right corner of the refrigerator compartment right door 3.
The upper end piece 31 covers the upper part of the refrigerator compartment right door 3 substantially horizontally, and the height of the refrigerator compartment right door 3 is made equal to the height of the top surface 1a of the refrigerator body 1 to improve the appearance of the refrigerator body 1. .
The right side piece 32 includes an outer curved portion (curved surface portion) 321 that is curved so as to be flush with the right side surface 1b from the front of the refrigerator, an upper end surface 322 that horizontally covers the upper end of the right side piece 32, and an upper end surface 322. And a circular opening 323 communicating with the upper hinge pin 110 of the upper hinge 10.
The outer curved portion (curved surface portion) 321 is curved so that the right end portion of the refrigerator compartment right door 3 is visually integrated with the refrigerator body 1 when the refrigerator compartment right door 3 is opened and closed. In this embodiment, from the viewpoint of space saving in the lateral direction of the refrigerator and aesthetics, the curved shape is a flatter shape.

As shown in FIG. 1, an upper hinge 10 is fixed to the top surface 1 a of the refrigerator body 1. As shown in FIG. 2B, the upper hinge 10 includes an upper hinge pin (pivot shaft) 110 that is an upper hinge shaft serving as a rotation center when the upper hinge 10 and the lower hinge 11 rotate relatively. And an attachment portion 111 for supporting the upper hinge pin 110 and fixing the upper hinge 10 to the top surface 1a of the refrigerator main body 1.
As in the comparative example, the upper hinge pin 110 is inserted into the right side piece 32 from above at the connection portion between the upper end piece 31 and the right side piece 32.
The attachment portion 111 is formed by bending a thick metal plate. The attachment portion 111 is formed with a semicircular leading portion 111a protruding forward, a plurality of screw through holes 111b, and a corrugated uneven portion 111c in cross-sectional view in order to increase bending rigidity. The attachment portion 111 is screwed to the top surface 1a of the refrigerator main body 1 with screws or bolts that penetrate the screw through holes 111b.
The top portion 111a of the attachment portion 111 forms a semicircle, and the upper hinge pin 110 protrudes downward from the center portion of the semicircular top portion 111a.

  A sensor housing 121 that houses an outside air temperature sensor (not shown) that measures the temperature of the outside air and an outside air humidity sensor (not shown) that measures the humidity of the outside air is attached behind the attachment portion 111 of the upper hinge 10. It has been. As shown in FIG. 2A, the upper hinge 10 and the upper part of the sensor accommodating portion 121 are covered with the upper hinge cover 20.

[Upper end piece structure]
3 is a perspective view showing the configuration of the upper end piece 31, FIG. 3 (a) is a perspective view of an essential part thereof, and FIG. 3 (b) is a cross-sectional view taken along line AA of FIG. 3 (a).
As shown in FIG. 3, a flat plate portion 311 that is inserted into the back surface of the upper end surface 322 of the right side piece 32 is formed at the right end of the upper end piece 31. The flat plate portion 311 includes an end surface 311a that is curved along the inner surface of the outer curved portion (curved surface portion) 321 of the right side piece 32, a circular opening portion 311b that allows the upper hinge pin 110 to communicate with the upper hinge 10, and a reinforcing rib. 311c is formed. The end surface 311 a has a flatter curved shape in accordance with the flatter shape of the outer curved portion 321 of the right side piece 32.
From the outer periphery of the opening 311 b of the flat plate portion 311, a cylindrical hinge pin accommodating portion 312 that accommodates the upper hinge pin 110 of the upper hinge 10 protrudes upward and downward.

  The hinge pin accommodating portion 312 includes a circular protruding portion 312a protruding upward from the upper surface of the flat plate portion 311, a bottomed cylindrical portion 312b extending downward from the lower surface of the flat plate portion 311 and an inner surface from the bottom surface inside the bottomed cylindrical portion 312b. Screw boss 312c (see FIG. 3 (b)) projecting in the direction (upward), a face reservoir 312d (see FIG. 3 (b)) formed in the bottom inside the screw boss 312c, and an outer cylinder of the bottomed cylindrical portion 312b Ribs 312e formed on the bottom.

  A screw 313 (bar-shaped member) is screwed onto the screw boss 312c. The screw 313 has substantially the same axial dimension as the depth of the bottomed cylindrical portion 312b. When the right side piece 32 and the upper end piece 31 are broken, the screw 313 is hooked on the inner wall of the upper hinge pin 110 (see FIGS. 4 and 5 described later) to prevent the door from falling off (for example, an iron core) ). That is, the screw 313 is not arranged for the purpose of fastening the members, but is a rod-like member that is caught on the inner wall of the upper hinge pin 110 to prevent the door from falling off. Accordingly, a bar member having high rigidity may be used. For example, an iron core or the like may be used instead of the screw 313, and the iron core or the like may be press-fitted into the screw boss 312c. In this embodiment, the screw head 313a of the screw 313 is in contact with the screw insertion end portion of the screw boss 312c. However, the screw boss 312c may have any shape as long as the screw 313 is surely raised.

In the present embodiment, a screw boss 312c is provided at the bottom of the bottomed cylindrical portion 312b of the hinge pin accommodating portion 312, and the screw 313 is assembled to the screw boss 312c, thereby allowing the upper hinge pin 110 to be hooked to the inner wall with a simple configuration. Can do. In general, mounting by screwing has certainty and versatility and is lower in cost than mounting by press-fitting. In addition, the facet when assembling the screw 313 may be left as it is in the facet storage port 312d, and the number of man-hours can be reduced.
Moreover, the outer cylinder bottom part of the bottomed cylindrical part 312b is surrounded by the heat insulation urethane with which the circumference | surroundings are filled into the refrigerator door right door 3 inside. By providing the rib 312e, the bottom part of the outer cylinder of the bottomed cylindrical part 312b can be more closely attached to the heat insulating urethane.

[Door drop prevention structure]
<Attaching the right door of the refrigerator compartment>
FIG. 4 is a perspective view showing a structure for preventing the right door 3 from falling off. 5 is a cross-sectional view taken along the line BB in FIG.
As shown in FIGS. 4 and 5, the right end flat plate portion 311 of the upper end piece 31 is combined so as to be covered by the upper end surface 322 of the right side piece 32 to form the upper right corner portion of the refrigerator right door 3. . From the outer periphery of the opening 311b of the flat plate portion 311 of the upper end piece 31, a cylindrical hinge pin accommodating portion 312 projects upward and downward. The upper end of the circular opening of the hinge pin accommodating portion 312 of the upper end piece 31 is aligned with the upper end surface 322 of the right side piece 32. Further, the opening 311b of the flat plate portion 311 of the upper end piece 31 and the opening 323 of the upper end surface 322 of the right side piece 32 are arranged so as to be aligned in the axial direction of the upper hinge pin 110 when viewed from above. The

  Here, a screw boss 312c protrudes from the bottom of the bottomed cylindrical portion 312b of the hinge pin accommodating portion 312, and a screw 313 is screwed to the screw boss 312c. The screw 313 includes a screw head 313a that sandwiches the outer cylindrical portion of the upper hinge pin 110 of the upper hinge 10 with the inner peripheral surface of the hinge pin housing portion 312 and has a depth (height) within the upper hinge pin 110 (height). In the direction until it reaches the vicinity of the flat plate portion 311 of the upper end piece 31).

As shown in FIG. 5, with the upper end piece 31 and the right side piece 32 attached to the right door 3 of the refrigerator compartment, the upper hinge pin 110 of the upper hinge 10 is raised through the opening 323 of the right side piece 32. The end piece 31 is inserted into the hinge pin accommodating portion 312. Then, as shown in FIG. 5, the screw through hole 111 b of the attachment portion 111 of the upper hinge 10 is fixed to the top surface 1 a of the refrigerator main body 1 by screwing with a screw 115.
As described above, the refrigerator compartment right door 3 is pivotally supported on the right side of the front surface of the refrigerator body 1 by the pivot shaft including the upper hinge 10 and the lower hinge 11 (see FIG. 1), and can be opened on the right side.

<Door drop prevention structure>
Each door of the refrigerator main body 1 including the refrigerator door right door 3 is not dropped from the refrigerator main body 1 in normal use.
However, for example, when the right side piece 32 is damaged due to an impact or a large external force is applied to the right door 3 of the refrigerator compartment and the right side piece 32 and the upper end piece 31 are broken, the hinge pin housing portion 312 is also removed. It can be considered that it is deformed or damaged by being pulled in the direction.

In the present embodiment, a screw 313 (bar-shaped member) that stands up toward the inside of the hinge pin accommodating portion 312 is attached to the bottom of the bottomed cylindrical portion 312b of the hinge pin accommodating portion 312 of the upper end piece 31, and the periphery of the screw 313 is The door fall prevention structure which the outer peripheral part of the upper hinge pin 110 of the hinge 10 surrounds is taken. Further, the hinge pin accommodating portion 312 of the upper end piece 31 is communicated with the opening 323 of the upper end surface 322 of the right side piece 32. That is, the hinge pin accommodating portion 312 of the upper end piece 31 has an original function as a bearing of a pivot shaft that pivotally supports the upper hinge pin 110 of the upper hinge 10, and extends from the bottom of the hinge pin accommodating portion 312 to the inside of the cylinder of the upper hinge pin 110. It also has a door drop-off prevention function to which a rigid member (here, screw 313) such as a protruding iron core is attached.
Even if the hinge pin housing part 312 is damaged, the door detachment preventing function causes the screw 313 (bar-like member) to be caught on the inner wall of the upper hinge pin 110 inside the cylinder, so that the upper hinge pin 110 is detached from the hinge pin housing part 312. Can be prevented.

As described above, the refrigerator 100 of the present embodiment has the screw 313 (bar-shaped member) that stands up toward the inside of the hinge pin housing portion 312 at the bottom of the bottomed cylindrical portion 312 b of the hinge pin housing portion 312 of the upper end piece 31. A door drop-off prevention structure is provided in which the outer periphery of the upper hinge pin 110 of the upper hinge 10 surrounds the screw 313.
With this configuration, it is possible to reliably prevent the door from falling off while eliminating the need for the door falling-off prevention metal fitting. Since the door drop-off prevention fitting is not provided, the outer curved portion 321 of the right side piece 32 can be made flatter, and the space saving in the lateral direction of the refrigerator and the appearance can be improved. Moreover, since the door drop-off prevention metal fitting is unnecessary, the cost of the metal fitting portion and the number of assembling steps can be reduced.

  While the present embodiment has been described with reference to the drawings, the present embodiment is not limited to the above contents. Therefore, various modifications are included in the present invention. That is, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to one having all the configurations described.

  For example, although the upper hinge 10 is mentioned as the hinge structure of the refrigerator door, it may be a hinge having a pivot shaft, and may be applied to other doors such as the upper hinge 8 of the refrigerator compartment left door 2.

In addition to these, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. is there. Furthermore, other configurations can be added, deleted, replaced, etc., for a part of the configurations of each embodiment.
For example, in this embodiment, although the example of application to a refrigerator provided with a freezer was given, if it is a refrigerator provided with a door, it can be applied similarly.

DESCRIPTION OF SYMBOLS 1 Refrigerator main body 1a Top surface 1b Right side 2 Refrigerating room left door (door)
3 Right door (door) of refrigeration room
8 Upper hinge 9, 11 Lower hinge 10 Upper hinge (hinge member)
31 Upper end piece 32 Right side piece 100 Refrigerator 110 Upper hinge pin (pivot shaft)
321 Outer curve part 312 Hinge pin accommodating part 312a Circular protrusion part 312b Bottomed cylindrical part 312c Screw boss 312d Facet outlet 312e Rib 312e.
313 screw (bar-shaped member)
321 Outside curve (curved surface)
322 Upper end surface 323 Opening

Claims (4)

A hinge member that pivots the door to open and close with respect to the refrigerator body,
The hinge member is
The first hinge member fixed to the refrigerator main body side, the second hinge member fixed to the door side of the refrigerator, and the rotation when the first hinge member and the second hinge member rotate relatively A central cylindrical pivot shaft,
The second hinge member is
A bottomed cylindrical portion for pivotally supporting the pivot shaft;
A rod-like member protruding from the bottom surface inside the bottomed cylindrical portion into the inside of the pivot shaft,
The refrigerator is characterized in that even when the second hinge member is pulled outward and deformed or damaged, the rod-like member is caught on the inner wall of the pivot shaft inside the cylinder to prevent the door from falling off. End pieces and side pieces covering the corners of the refrigerator door ,
And a hinge member for rotating freely open and close the door against the cold Zoko body,
The hinge member is
The first hinge member fixed to the refrigerator main body side, the second hinge member fixed to the door side of the refrigerator, and the rotation when the first hinge member and the second hinge member rotate relatively A central cylindrical pivot shaft,
The second hinge member is
A bottomed cylindrical portion which extends in a direction crossing the upper and lower opposed surfaces of the flat plate portion,
A rod-like member protruding from the bottom inside the bottomed cylindrical portion into the inside of the pivot shaft,
The outer periphery of the pivot shaft surrounds the periphery of the rod-shaped member, and further constitutes a door drop-off prevention structure in which the outer peripheral portion of the pivot shaft is surrounded by the bottomed cylindrical portion,
At the end of the end piece, the flat plate portion inserted into the upper end surface of the side piece is formed, and the bottomed cylindrical portion extends from the lower surface of the flat plate portion,
Even when the end piece or the side piece is broken and the second hinge member is pulled outwardly through the bottomed cylindrical portion to be deformed or damaged, the rod-like member remains inside the cylinder of the pivot shaft. The refrigerator is characterized in that the door is prevented from falling off by being caught on the inner wall of the refrigerator. The refrigerator according to claim 1 or 2, wherein the rod-shaped member is a screw that is screwed into the bottomed cylindrical part or a rigid member that is press-fitted into the bottomed cylindrical part. The second hinge member is
The screw boss which protrudes into the inside of the cylinder of the pivot shaft from the bottom surface inside the bottomed cylindrical portion, and a face reservoir formed at the bottom inside the screw boss. The refrigerator described.

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