JP5246193B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator, and more particularly to a drawer structure that forms a drawer-type storage chamber.

  Conventionally, refrigerators are often provided with a drawer-type storage room at the lower stage of the refrigerator from the viewpoint of being able to store without waste and being easy to use. Such a drawer-type storage room is required to have smoothness when the storage room is taken in and out, easy to put food in and out of the storage room, and easy attachment and detachment of the container forming the storage room. .

  Therefore, a technique for improving the usability of the drawer-type storage room is also disclosed (see, for example, Patent Document 1 or Patent Document 2).

  FIG. 7 is a view showing a side cross section of a conventional refrigerator 100.

  A conventional refrigerator 100 shown in FIG. 7 includes a refrigerator compartment 102, a temperature changeable switching room 106, an ice making room (not shown) attached to the switching room 106, a vegetable room 103, and a heat insulation box 101. A freezer compartment 104 is provided as a storage compartment.

  The heat insulating box 101 is formed of an outer box 112, an inner box 110, and a heat insulating material 111 filled between the outer box 112 and the inner box 110.

  A container 206 as a component of the vegetable compartment 103 is supported by two rail devices 202 connected to the drawer door 201 of the vegetable compartment 103.

  A container 206 that is a component of the freezer compartment 104 is supported by two rail devices 202 connected to the drawer door 201 of the freezer compartment 104.

  The vegetable compartment 103 and the freezer compartment 104 are each configured as described above, and thus are drawer-type storage rooms that can be taken in and out of the heat insulating box 101.

  Here, the drawer door 201 for obstruct | occluding front opening in the conventional refrigerator is demonstrated.

  FIG. 8 is a perspective view showing the drawer door from the back side.

  As shown in FIG. 8, a door frame 205 is attached to the drawer door 201 in a vertically projecting manner with respect to the drawer door 201. The door frame 205 is attached to the drawer door 201, and a rail device 202 (not shown) provided with a moving rail and a fixed rail is slidably engaged, and the drawer door 201 remains in a vertical state. It can be pulled out and pushed back horizontally.

  FIG. 9 is a cross-sectional view showing the relationship between the drawer door and the container from the back side of the refrigerator.

  As shown in FIG. 9, the container 206 is disposed between the two rail devices 202, and is supported by the two rail devices 202 at a substantially central portion in the height direction of the container 206.

JP 2006-177653 A JP 2006-214642 A

  However, in recent years, there is a tendency to increase the internal volume that can be actually stored by devising the arrangement of the components of the refrigerator.

  The container provided in the conventional drawer-type storage chamber is only placed on the rail device, and by increasing the inner volume of the container, the stored items stored in the container further increase and the load increases. When the drawer door is opened, a large load is applied to the rail device, and in particular, stress applied to the end portion of the rail device, which is an attachment portion between the rail device and the drawer door, is increased.

  This is because only the rail device 202 supports the container 206 that is interlocked with the opening of the drawer door when the drawer door is fully opened, and a drawer door that is insulated and foamed inside is provided at the end of the rail device 202. Therefore, in addition to the load of the container 206, the load of the drawer door 201 is applied to the end portion of the rail device 202. Further, there is a case where a vacuum heat insulating material is embedded in the drawer door 201 from the viewpoint of energy saving, and the load on the rail device 202 is increased. For this reason, even if the rail device 202 is deformed by the opening / closing operation of the drawer door 201 for a long period of time, and the drawer door 201 closes the opening of the vegetable compartment 103 or the freezer compartment 104, the drawer door 201 does not touch the opening. There is a possibility that it is distorted and closed, or the opening cannot be sealed with a seal portion (not shown) of the drawer door 201, and the indoor cold air leaks and cannot be cooled to a predetermined temperature.

  The present invention solves the above-described conventional problems, and is a refrigerator including a drawer-type storage chamber, ensuring a large actual storage capacity in the drawer-type storage chamber, and particularly distributing the load applied to the rail device, It aims at providing the refrigerator which reduced the distortion of the drawer door by deformation | transformation of a rail apparatus, ensured structural strength, and ensured the cooling performance.

In order to solve the above-described conventional problems, the refrigerator of the present invention includes an inner box, an outer box, a heat insulating box made of a heat insulating material filled between the inner box and the outer box, and the heat insulating box body. A drawer-type storage chamber that is formed inward and has a front opening, a drawer door that closes the front opening of the storage chamber so as to be openable and closable, a partition wall that partitions the storage chamber of the heat insulation box, and a fixed rail A movable rail, and the fixed rail and the movable rail are fixed to the inner box wall or the partition wall in a state where the fixed rail and the movable rail are assembled in advance, and the container provided in the storage chamber is opened and closed by opening and closing the drawer door. The rail device is connected to the lower side of a vertical center of the drawer door by a door frame and has a stepped portion on the side surface of the container that is open on the upper surface. Forming a protrusion on the stepped portion Formed, the door frame the protrusion forms a fixing hole portion to be inserted into further flange portion provided on the front surface of the container, the plug-like with the inner plates of the left and right sides of the drawer door The container is removably inserted into the body, and the container is detachably fitted and supported by the drawer door and the door frame in the vertical direction, so that the position serving as a fulcrum of the tensile force is behind the drawer door, The stress generated in the drawer door is alleviated from concentrating on the base end portion of the door frame .

  As a result, since the rail device is attached to both the left and right ends of the bottom of the container, it is possible to increase the size and capacity of the container supported by the rail device, and to further warp the drawer door due to deformation of the rail device. Thus, it is possible to secure the cooling performance.

  The refrigerator of the present invention can secure a large actual storage space and cooling performance in a drawer-type storage room.

Front view of the refrigerator in Embodiment 1 of the present invention The figure which shows the AA line cut surface of FIG. The perspective view which shows the rail apparatus of the refrigerator in Embodiment 1 of this invention. The perspective view which shows the drawer door which the refrigerator in Embodiment 1 of this invention connected, the rail apparatus, and the container which can be attached or detached. Sectional drawing of the principal part when the container of FIG. 4A is mounted Sectional drawing which shows the state which has arrange | positioned the container between the rail devices of the refrigerator in Embodiment 1 of this invention from the back side. The principal part enlarged view which showed arrangement | positioning of the rail apparatus and container of the refrigerator in Embodiment 1 of this invention The perspective view which shows a state when mounting | wearing with the container of FIG. 4A. Sectional view showing a conventional refrigerator The perspective view which shows the relationship between the conventional drawer door and a rail Sectional drawing which shows the relationship between the conventional rail and a container

In the first aspect of the present invention, the refrigerator according to the present invention includes an inner box, an outer box, a heat insulating box formed of a heat insulating material filled between the inner box and the outer box, and an inner portion of the heat insulating box. A drawer-type storage chamber having a front opening formed on the side, a drawer door that closes the front opening of the storage chamber so as to be openable and closable, a partition wall that partitions the storage chamber of the heat insulating box, and a fixed rail. A fixed rail and a movable rail are fixed to the inner box wall or the partition wall in a state in which the fixed rail and the moving rail are assembled in advance, and the container provided in the storage chamber is opened and closed by opening and closing the drawer door. In the refrigerator comprising a movable rail device, the rail device is connected by a door frame below a central portion in the vertical direction of the drawer door, and a step portion is formed on a side surface portion of the container having an upper surface opened. Forming a protrusion on the stepped portion. Wherein forming a fixing hole the protrusion is inserted into the door frame, further, the flange portion provided on the front surface of the container, removably in the insertion-like body having the inner panel of the left and right sides of the drawer door The container is inserted and supported by the drawer door and the door frame so as to be detachable in the vertical direction, and the position serving as a fulcrum of the tensile force is set behind the drawer door, and the drawer door Since the rail device is attached to the left and right ends of the bottom of the container by reducing the concentration of the stress generated at the base end of the door frame, the size and size of the container supported by the rail device are increased. By increasing the volume and fixing the container to the drawer door and door frame, it is possible to distribute the load applied to the end of the rail device on the drawer door side. Secure storage space, Ensuring the strength by reducing the distortion of the drawer door due to the deformation of the rail device in al can secure cooling performance.

According to a second aspect of the present invention, in the first aspect of the present invention, the tip of the protruding portion is inclined toward the interior depth direction, so that the container is not affected even when a load is applied to the drawer door side. The container can be fixed so as not to be easily detached from the door frame, and the container can be prevented from floating upward when the drawer door is opened and closed.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to the same configurations as those of the conventional example or the embodiments described above, and detailed descriptions thereof will be omitted. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a front view of the refrigerator according to Embodiment 1 of the present invention.

  As shown in FIG. 1, a refrigerator 100 according to the present embodiment is a refrigerator 100 having a double-spread door at the top, and in a heat insulating box 101 that separates the inside and the outside of the refrigerator 100 in a heat insulating state. A storage compartment divided into a plurality of compartments is provided.

  The storage compartment divided into a plurality of refrigerators 100 includes a refrigeration compartment 102, an ice making compartment 105, a changeover compartment 106, a vegetable compartment 103, a freezer compartment 104, and the like that can change the temperature inside the refrigerator. Sometimes referred to as distinct.

  At the front opening of the refrigerator compartment 102 located at the top of the refrigerator 100, a rotary heat insulating door 107 filled with foam heat insulating material such as urethane is provided to form a shelf-shaped storage space.

  In addition, the ice making room 105, the switching room 106, the vegetable room 103, and the freezing room 104 disposed below the refrigerator room 102 are drawer-type storage spaces.

  The heat insulating box 101 is a rectangular parallelepiped box that is formed by filling a heat insulating material 111 such as hard foamed urethane between a metal outer box 112 and a resin inner box 110. . The heat insulating box 101 has a function of blocking heat that tends to flow into the heat insulating box 101 from the outside atmosphere (atmosphere).

  The refrigerated room 102 is a storage room that is maintained at a low temperature so that the contents are not frozen for refrigerated storage. The lower limit of the specific temperature is usually set at 1 to 5 ° C.

  The vegetable room 103 is a storage room that is arranged at the lowermost part of the heat insulating box 101 and is mainly intended for refrigeration of vegetables. In addition, the vegetable room 103 is set to a temperature that is the same as or slightly higher than that of the refrigerator compartment 102. The lower limit of the specific temperature is 2 ° C to 7 ° C. In addition, it is possible to maintain the freshness of leafy vegetables for a long time, so that it becomes low temperature.

  The freezer compartment 104 is a storage compartment set in a freezing temperature zone. Specifically, although it is usually set at −22 to −18 ° C. for frozen storage, it may be set at a low temperature of −30 to −25 ° C., for example, in order to improve the frozen storage state.

  The ice making chamber 105 is a storage chamber in which an ice making machine (not shown) is provided inward to make ice with the ice making machine and store the ice. The set temperature is almost the same as that of the freezer compartment 104.

  The switching chamber 106 can be switched from a refrigeration temperature zone to a freezing temperature zone according to the use by an operation panel attached to the refrigerator 100.

  In order to divide these different temperature zones into a plurality, partition walls 108 are installed between the temperature zones in the heat insulating box 101.

  FIG. 2 is a longitudinal sectional view of the refrigerator in the first embodiment of the present invention, and shows a state cut along the line AA in FIG.

  As shown in FIG. 2, the drawer-type storage chamber among the storage chambers provided in the refrigerator 100 is connected to the drawer door 201 that closes the front opening, the drawer door 201, and the heat insulating box body 101 in an extendable manner. A rail device 202 is provided that enables the container 206 provided inside the storage chamber to be moved back and forth. Further, the refrigerator 100 includes a door frame 205 and a container 206.

  Here, the door frame 205 corresponds to a “reinforcing member” in the claims.

  The drawer door 201 is a plate-like member having a heat insulating property that can close the opening of the storage chamber so as to be freely opened and closed, and includes a packing 207 on the inner periphery. The packing 207 is in close contact with the heat insulating box 101 and the like in a state where the drawer door 201 closes the opening of the storage chamber, and prevents cold air from leaking.

  FIG. 3 is a perspective view showing the rail device of the refrigerator in the first embodiment of the present invention.

  As shown in FIG. 3, the rail device 202 has three rails stacked in three stages, and the second rail (middle rail 221) is movable with respect to the first rail (cabinet rail 222). And since the 3rd rail (top rail 203) can move with respect to a 2nd rail (middle rail 221), it can expand-contract as a whole.

  The top rail 203 and the middle rail 221 correspond to a “moving rail” in the claims, and the cabinet rail 222 corresponds to a “fixed rail” in the claims.

  The fixed rail and the moving rail are each supported by a rotation support member (not shown), and the rail device 202 is fixed to the inner box 110 wall with the fixed rail and the moving rail being assembled in advance.

  In the rail device 202, the rail mounting portion 223 of the cabinet rail 222 is attached to the inner box 110 of the heat insulating box 101. In the rail device 202, the top rail 203, the middle rail 221 and the cabinet rail 222 are slidable with respect to each other. As a result, the entire rail device 202 can be expanded and contracted. Therefore, the drawer door 201 can be pulled out or pushed back with respect to the heat insulating box body 101 along the extendable orbit of the rail device 202.

  FIG. 4A is a perspective view showing a state in which drawer door 201 and rail device 202 are connected by door frame 205 of the refrigerator in Embodiment 1 of the present invention.

  As shown in FIG. 4A, the drawer door 201 includes an inner plate 211 that covers the front surface of the heat insulating box and a door frame 205. The inner plate 211 is one of the members constituting the drawer door 201 and is a plate-like member formed by vacuum forming. The door frame 205 fixed directly to the inner plate 211 is connected to the top rail 203 using a screw or the like, so that the drawer door 201 can be pulled out or pushed back by the function of the rail device 202. It has become.

  In order to relieve the stress generated when the drawer door 201, particularly the drawer door 201 is pulled out and pushed back while holding the upper end of the drawer door 201, the container 206 and the drawer door 201 are separated from each other. A first fixing means 301 for fixing is provided on the inner plate 211 of the drawer door 201, and the first fixing means 301 is formed in the upper surface opening of the container 206 when the container 206 is placed on the rail device 202. The front flange portion 206a having a substantially L-shaped cross section is installed at a fixed position. And the front flange part 206a is inserted and fixed from the upper part to the 1st fixing means 301 formed in the insertion-like body of a cross-sectional substantially L shape.

  The first fixing means 301 is a metal member, and is fixed to a flat metal plate (not shown) fixed in a foam heat insulating material on the back side of the inner plate 211 with a screw or the like via the inner plate 211. ing. The front flange portion 206a is inserted and fixed to the first fixing means 301 from above. The door frame 205 includes a bent portion 241 that is bent so that an edge corresponding to one side of the door frame 205 is along the inner plate 211 of the drawer door 201, and the bent portion 241 is the back side of the inner plate 211. It is fixed to a flat metal plate (not shown) fixed in the foam heat insulating material with screws or the like via the inner plate 211.

  In this way, by fixing the front flange portion 206a of the container 206 to the first fixing means 301 provided on the upper portion of the inner plate 211 of the drawer door 201, the rail device 202 attached to the lower portion with respect to the drawer door 201 and It is possible to compensate for insufficient strength of the attachment portion with the drawer door 201 and to smoothly open and close the drawer door.

  Further, the second fixing means 303 formed integrally with the inner plate 211 abuts on the peripheral edge portion 304 forming the upper surface opening of the container 206 and prevents the front flange portion 206a from rising upward. This is the anti-roll member 303.

  As shown in the figure, the second fixing means 303 is provided between the first fixing means 301 provided on the left and right sides.

Further, as shown in the figure, the detachable container 206 is fitted from above the drawer door 201, and the front flange portion 206a is inserted into the first fixing means 301 as described above to form the peripheral edge portion 304 that forms the upper surface opening of the container 206. Is in contact with the second fixing means 303 from above, that is, the first fixing means 301 supports and fixes the front surface portion of the container 206 from below, and the second fixing means 303 supports and fixes the front surface portion of the container 206 from above. Since the upper portion of the container 206 is supported and fixed to the inner plate 211, the rail device 202 attached to the lower portion of the drawer door 201 and the drawer door 201 are attached. This makes it possible to compensate for the insufficient strength of the portion and to smoothly open and close the drawer door.

Further, even when the drawer door 201 is pulled out or pushed back, the stress is not concentrated on the mounting portion of the top rail 203, and the portion connected via the bent portion 241 and the door frame 205. Therefore, the attachment strength between the drawer door 201 and the top rail 203 can be improved as a whole. This is particularly effective in the case of the present embodiment in which the top rail 203 is attached to the lower part of the drawer door 201.

  Assuming that the rail device 202 is secured in the vicinity of the central portion in the vertical direction of the drawer door 201, the rail device 202 is secured in the same manner as the position of the present embodiment using the door frame 205 that secures the minimum strength required. When the drawer door 201 is opened and closed in the front-rear direction in a state where the door frame 205 is disposed below the center part in the vertical direction of the drawer door 201, the door frame 205 is insufficient due to insufficient strength of the door frame 205 on the side fixed to the drawer door 201. Alternatively, the inner plate 211 may be deformed, and as a result, the packing 207 provided in the drawer door 201 may be separated from the heat insulating box 101, and a gap may be generated, leading to poor quality such as frost in the refrigerator. There is also.

  If the attachment part of the drawer door 201 and the top rail 203 is at the lower part of the drawer door 201, when the upper part of the drawer door 201 is pulled out and pushed back, the moment applied to the attachment part becomes relatively large. In this embodiment, the first fixing means 301 or the second fixing means 303 or both the first fixing means 301 and the second fixing means 303 are provided above the attaching portion to fix the container 206. Since the moment is reduced, the mounting portion of the top rail 203 can be protected from damage. That is, in the present embodiment, by providing the drawer door 201 provided with the first fixing means 301 and / or the second fixing means 303, the position serving as a fulcrum of the tensile force can be set upward.

  As described above, the first fixing means 301 is formed separately from the inner plate 211, and the second fixing means 303 is formed integrally with the inner plate 211, and in particular, a fixing structure of the front flange portion 206 a of the container 206. The first fixing means 301 is formed of a metallic part separate from the inner plate 211, so that the container 206 is fixed with respect to the movement of the drawer door 201 even if the stored item is put in the container 206. Can be maintained. Moreover, the number of parts can be reduced by integrally molding the second fixing means 303 with the inner plate 211.

  FIG. 4C is a cross-sectional view showing the state in which the containers are arranged between the rail devices of the refrigerator according to Embodiment 1 of the present invention from the back side.

  As shown in FIG. 4C, the container 206 is a container for storing beverages, frozen foods, and the like filled in vegetables and PET bottles, and is a resin box having an upper surface opened. The container 206 includes a narrow portion 261 having a narrow width so that step portions 262 facing inward are formed at both ends of the lower portion. The container 206 is supported by the top rail 203 by arranging the narrow portion 261 between the two top rails 203 and placing the stepped portion 262 on the upper surface of the door frame 205.

  Thus, since the top rail 203 is provided at both corners of the lower part of the drawer door 201, it is possible to keep the narrow width portion 261 of which the width has to be reduced within the container 206 as short as possible. Therefore, the container 206 can adopt a shape that makes the storage volume as large as possible.

  FIG. 5 is an enlarged view of a main part showing the arrangement of the rail device and the container of the refrigerator in the first embodiment of the present invention.

  In the present embodiment, as shown in FIG. 5A, the container 206 has a narrow width so that the inwardly-facing step 262 is formed in the depth direction of the container 206 at both ends of the lower part. 5B and FIG. 5C, the side surface of the container 206 is substantially straight, and the container 206 is not provided with the stepped portion 262. 202 is supported on the left and right ends of the bottom of the container 206 (see FIG. 5B), or is supported below the left and right ends of the bottom of the container 206 (see FIG. 5C). ) 5 shows the positional relationship between the rail device 202 and the container 206, and the door frame 205 is omitted and not shown.

  5A, the stepped portion 262 provided on both sides of the container 206 has protrusions 206b and 206c formed integrally with the container 206 as shown in FIG. 4A. The front projection 206b is formed and the rear projection 206c is formed on the rear side of the container 206. These projections are formed in the fixing holes 205a and 205b formed on the door frame. Inserted.

  The fixing hole 205a may be a notch shape, the front protrusion 206b is inserted into the fixing hole 205a for positioning, and the rear protrusion 206c is inserted into the fixing hole 205b formed at the rear of the door frame 205. To do.

  As shown in FIG. 4A and FIG. 6, if the rear projection 206c is inclined downward toward the rear of the door frame 205, it can be prevented from being easily removed from the state of being inserted into the fixing hole 205b. It is possible to prevent the container 206 from floating upward during the opening / closing operation of the door 201.

  In particular, as described above, the front side is in a state where the front flange 206a of the container 206 is fixed to the drawer door 201, and the rear side is fixed to the drawer door 201 by fixing the rear projection 206c and the door frame 205. It is possible to compensate for insufficient strength of the attachment portion between the rail device 202 attached to the lower portion and the drawer door 201, and to smoothly open and close the drawer door.

  That is, since the moment applied to the mounting portion is reduced, the mounting portion of the top rail 203 or the mounting portion of the rail fixing portion can be protected from damage. That is, in the present embodiment, the front flange 206a of the container 206 is fixed to the drawer door 201 provided with the first fixing means 301 and / or the second fixing means 303, and the rear protrusion 206c of the container 206 is further connected to the door. By inserting and fixing in the fixing hole 205 b provided in the frame 205, the position serving as a fulcrum of the pulling force can be set behind the drawer door 201.

  As described above, since the refrigerator according to the present invention can secure a wide actual storage space, it can be used for a refrigerator having a drawer-type storage chamber, and further developed in a unit kitchen equipped with a drawer. Is possible.

DESCRIPTION OF SYMBOLS 100 Refrigerator 101 Heat insulation box 110 Inner box 111 Heat insulation material 112 Outer box 201 Drawer door 202 Rail apparatus 205 Door frame (strengthening member)
206 Container 206a Front flange portion 206b Front projection portion 206c Rear projection portion 211 Inner plate 301 First fixing means (plug-in body)
303 2nd fixing means (lifting prevention member)
304 peripheral edge

Claims (2)

A heat insulating box made of an inner box, an outer box, a heat insulating material filled between the inner box and the outer box, and a drawer-type storage chamber having an open front surface formed inside the heat insulating box. A drawer door that opens and closes the front opening of the storage chamber, a partition wall that partitions the storage chamber of the heat insulation box, a fixed rail, and a moving rail, and the fixed rail and the moving rail. In a refrigerator equipped with a rail device that is fixed to the inner box wall or the partition wall in a pre-assembled state and that allows the container provided in the storage chamber to be moved back and forth by opening and closing the drawer door, The rail device is connected by a door frame below the center in the vertical direction of the drawer door, forms a step portion on the side surface portion of the container that is open on the top surface, forms a protrusion on the step portion, and the door Fixing the projection into the frame Part is formed, further, the flange portion provided on the front surface of the container, wherein is removably inserted into the insertion-like body with the left and right sides of the inner plate of the drawer door, said container and said drawer door By fitting and supporting the door frame so as to be detachable in the vertical direction, the position serving as a fulcrum of the tensile force is set behind the drawer door, and the stress generated in the drawer door is applied to the base end of the door frame. A refrigerator characterized by relieving concentration . The refrigerator according to claim 1 , wherein a tip of the protruding portion is arranged to be inclined toward a depth direction in the cabinet.

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