JP2013068353A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such the following problems: when the amount of load to be applied to a rail device increases, the rail device is deformed due to long-time opening and closing operations of a drawing door 201; and the drawing door 201 cannot smoothly moved back and forth.SOLUTION: The refrigerator includes: a moving rail which allows a container 206 to move back and forth together with a drawing door 201; and a door frame 205 which fixes the moving rail and the drawing door 201. When the drawing door 201 is drawn forward completely, a fixation part between the door frame 205 and the moving rail is located forward of an opening part, the back end of the door frame 205 is located behind the opening part, thereby securing a sufficient length for the door frame 205 and reducing the stress to be applied to the fixation part between the door frame 205 and the moving rail.

Description

  The present invention relates to a refrigerator, and 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).

  FIG. 14 is a view showing a side cross section of a conventional refrigerator 100.

  A conventional refrigerator 100 shown in FIG. 14 includes a refrigeration chamber 102, a temperature changeable switching chamber 106, an ice making room (not shown) attached to the switching chamber 106, a vegetable chamber 103, and a heat insulating 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 306 which is 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 306 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. 15 is a perspective view showing the drawer door from the back side.

  As shown in FIG. 15, a door frame 305 is attached to the drawer door 201 so as to protrude vertically with respect to the drawer door 201. The door frame 305 is attached to the drawer door 201, and a rail device 202 having a moving rail and a fixed rail is slidably engaged, and the drawer door 201 is pulled out and pushed back in the horizontal direction while standing in the vertical direction. Can be done.

JP 2006-177653 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 placed on the rail device 202 via the door frame 305, and when the stored items in the container 306 increase due to the increase in the internal volume of the container 306, the rail device The load on 202 also increases. For this reason, a large load is applied to the rail device 202 when the drawer door 201 is opened.

  In particular, the downward stress increases at the front end of the door frame 305 that is an attachment portion between the door frame 305 and the drawer door 201. Further, as a reaction force, an upward stress increases at the rear end of the door frame 305 which is a fixing portion between the door frame 305 and the rail device 202.

  Then, since the load applied to the rail device 202 increases, the rail device 202 may be deformed due to the opening / closing operation of the drawer door 201 for a long period of time, and the drawer door 201 may not be able to move smoothly back and forth. For this reason, even if the drawer door 201 closes the opening of the vegetable compartment 103 or the freezer compartment 104, the drawer door 201 is distorted and closed with respect to the opening, or the opening is sealed with a seal portion (not shown). ) Cannot be sealed, and there is a problem that the cool air in the storage chamber 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, which can secure a large actual storage capacity in the drawer-type storage chamber and distributes the load applied to the door frame. Then, it aims at providing the refrigerator which reduced the distortion | strain of the drawer door by deformation | transformation of a rail apparatus, suppressed the clearance gap of the seal part by the unbalance of a drawer door, and improved 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 storage chamber that is formed inward and has an opening on the front surface, a container that is provided inside the storage chamber and that has an upper surface open, a drawer door that closes the opening so as to be openable and closable, and the container together with the drawer door A movable rail that can move forward and backward, and a door support member that fixes the movable rail and the drawer door, and when the drawer door is pulled forward, the door support member and the movable rail The fixing portion is positioned in front of the opening, and the rear end of the door support member is positioned in the rear of the opening.

  According to this, while ensuring sufficient length to a door support member, by suppressing the stress concerning the fixed part of a door support member and a movable rail, the deformation | transformation of a rail apparatus is suppressed and distortion of a drawer door is suppressed. The cooling performance can be improved by reducing the temperature.

  The refrigerator of this invention can suppress a deformation | transformation of a rail apparatus, ensuring a large real storage space in a drawer-type storage chamber.

Front view of the refrigerator in Embodiment 1 of the present invention Sectional drawing of the refrigerator in Embodiment 1 of this invention 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 and door frame of the refrigerator in Embodiment 1 of this invention. The perspective view which shows the door frame of the refrigerator in Embodiment 1 of this invention. Sectional drawing which shows the inner box and attachment part of a rail apparatus in the freezer compartment of the refrigerator in Embodiment 1 of this invention Sectional drawing which shows the attachment part of the inner box and rail apparatus in the vegetable compartment of the refrigerator in Embodiment 1 of this invention Sectional drawing which shows the rail apparatus and container of a refrigerator in Embodiment 1 of this invention (A) The principal part enlarged view which showed arrangement | positioning of the rail apparatus and container of the refrigerator in Embodiment 1 of this invention (B) The principal part enlarged view which showed arrangement | positioning of the rail apparatus and container of the refrigerator (C) The refrigerator Enlarged view showing the arrangement of the rail device and container The perspective view of the container of the refrigerator in Embodiment 1 of this invention The principal part side view of the state which pulled out the drawer door of the refrigerator in Embodiment 1 of this invention (A) Main part side view in a state in which the drawer door of the refrigerator in Embodiment 2 of the present invention is pulled out (B) Main part side view in a state in which the drawer door of the refrigerator is closed Sectional drawing in the vegetable compartment of the state which pulled out the drawer door of the refrigerator in Embodiment 2 of this invention Cross-sectional view of a conventional refrigerator The perspective view which shows the drawer door and rail apparatus of the conventional refrigerator

  The first invention comprises 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 an opening formed on the front surface of the heat insulating box. A storage chamber provided therein, a container provided inside the storage chamber, the upper surface of which opens, a drawer door that closes the opening so as to be openable and closable, and a moving rail that allows the container to move back and forth together with the drawer door The moving rail and a door support member for fixing the drawer door, and when the drawer door is pulled out to the forefront, the fixed portion between the door support member and the movable rail is located in front of the opening. The rear end of the door support member is located behind the opening.

  According to this, a sufficient length is secured to the door support member, the load from the container can be distributed over the entire moving rail, and the rail is suppressed by suppressing the stress applied to the fixed portion between the door supporting member and the moving rail. It is possible to improve the cooling performance by suppressing the deformation of the device and reducing the distortion of the drawer door. Furthermore, by covering the rail member, it is possible to prevent a hand or a finger from being damaged by the rail member, and to prevent a finger or the like from being sandwiched between the moving rail and the opening, thereby improving safety. Moreover, since the rail member becomes difficult to see, the appearance design can be improved.

  According to the second aspect of the invention, in particular, the fixed part of the first aspect of the invention is a projection provided on the moving rail and a locking part provided rearward from the center in the longitudinal direction of the door support member. Since the distance between the upper part of the drawer door and the fixed part, which is a force when pulling out the drawer door, can be shortened, the door support member and the moving rail are securely fixed without rattling while suppressing the stress applied to the fixed part. In addition, the attachment and detachability of the door support member and the moving rail can be improved.

  In the third invention, in particular, the locking portion of the second invention is positioned in front of the rear end of the container, so that the stress applied to the fixed portion between the door support member and the moving rail is caused by the rigidity of the container. It is possible to suppress the deformation of the rail device.

  According to a fourth aspect of the present invention, in particular, the locking portion according to the fourth aspect of the present invention has a simple configuration in which the door support member includes a notch and covers the locking portion by bending the notch. Thus, by covering the locking part, it is possible to prevent the hand and the finger from being damaged by the locking part, so that safety is improved. Moreover, since the locking portion is difficult to see, the appearance design can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that 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 normally set at −22 to −18 ° C. for frozen storage, it may be set at a low temperature of −30 or −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.

  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, a partition wall 108 is installed between the storage chambers in order to partition the storage chambers in different temperature zones. Of the storage rooms provided in the refrigerator 100, the drawer-type storage room includes a drawer door 201 that closes the front opening, a drawer door 201 and a heat-insulating box body 101 that are telescopically connected and provided inside the storage room. A rail device 202 that allows the container 206 to move back and forth is provided.

  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. Moreover, the front upper part of the drawer door 201 is provided with a handle portion 201a that is used when the drawer is pulled out.

  A door frame 205 that is a door support member in the present invention 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 rail device 202. Further, the door frame 205 holds both ends of the bottom of the container 206. That is, the container 206 is attached to the rail device 202 through the door frame 205.

  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 cabinet rail 222 is a “fixed rail” fixed to the side surface or the bottom surface of the inner box 110, and the top rail 203 and the middle rail 221 are “movable rails” provided so as to be movable with respect to the fixed rail.

  A flat rail mounting portion 223 is formed integrally with the cabinet rail 222.

  On the top surface of the top rail 203, a hook-shaped portion 231 and a fixing hole 232 for fixing to the door frame 205 are provided. The hook-shaped portion 231 is a protrusion in the present invention, and is provided behind the center in the longitudinal direction of the top rail 203. The hook-shaped portion 231 is formed by cutting out a part of the upper surface of the top rail 203 into a substantially U-shape and cutting out the notch. The vertical portion rises substantially perpendicular to the upper surface of the top rail 203. A portion 231a and a horizontal portion 231b which is provided at the tip of the vertical portion 231a and bent forward substantially horizontally with respect to the upper surface of the top rail 203 are formed. The length of the horizontal part 231b is configured to be longer than the height of the vertical part 231a.

  The fixing hole 232 is a screw hole provided from the front end of the top rail 203 to have a length necessary for ensuring the strength of the fixing hole 232 and / or to correspond to a round hole provided in the door frame 205. It is.

  Next, the drawer door 201 and the door frame 205 will be described. FIG. 4 is a perspective view showing a state in which the drawer door and the door frame are connected in Embodiment 1 of the present invention.

  As shown in FIG. 4, a door frame 205 is fixed to the drawer door 201 on the inner plate 211 side that covers substantially the entire rear side surface. The inner side plate 211 is one of the members constituting the drawer door 201 and is a plate-like member formed by vacuum forming.

Since the inner plate 211 is mainly molded from resin, even if the inner plate 211 is directly fixed to the inner plate 211 with screws, it is not possible to secure a strength that can withstand the load applied to the door frame 205. Therefore, as a means for securely fixing the door frame 205, the door frame 205 is fixed to a reinforcing plate (not shown) embedded in the heat insulating material in the drawer door 201 with screws or the like via the inner plate 211. .

  The reinforcing plate extends in the vertical direction of the inner plate 211 and is mainly formed of a metal material such as iron. Two reinforcing plates are provided independently corresponding to the left and right door frames 205.

  The inner plate 211 includes a side rib 302 that protrudes rearward from the inner surface on the outer side of the attachment portion with the door frame 205. The side ribs 302 are formed so that at least the height below the center in the longitudinal direction of the side ribs 302 is constant. Furthermore, the height below the center in the longitudinal direction of the side ribs 302 is more desirably higher than the width (length in the front-rear direction) of the enlarged portion 281 of the door frame 205 fixed to the drawer door 201. .

  Furthermore, it is desirable that the width below the center in the longitudinal direction of the side rib 302 is also constant. Further, the lower ends of the side ribs 302 provided on both sides are connected by the lower ribs 303 respectively. The lower rib 303 is provided below the attachment portion between the inner plate 211 and the door frame 205 so as to protrude rearward from the inner surface, and the height thereof is substantially the same as the height of the lower end of the side rib 302. .

  The inner plate 211 is provided with a container fixing means 301. The container fixing means 301 is a metal member, and is fixed to the above-described reinforcing plate with screws or the like via the inner plate 211. There is a gap between the container fixing means 301 and the inner plate 211, and the container 206 can be fixed by inserting a part of the container 206 into the gap.

  The door frame 205 will be described in more detail with reference to FIG. FIG. 5 is a perspective view showing a state where the drawer door and the door frame are connected in Embodiment 1 of the present invention.

  The door frame 205 includes an upper surface portion 282 that covers the upper surface of the top rail 203 and a side surface portion 283 that covers the side surface of the top rail 203 on the outer side of the warehouse. The total length of the upper surface portion 282 and the side surface portion 283 is preferably longer than the total length of the top rail 203.

  An end of the upper surface portion 282 on the inner side is cut and raised at a substantially right angle, and a main body portion 284 that is substantially parallel to the side surface portion 283 is formed. The front end of the main body 284 is provided with an enlarged portion 281 that protrudes upward from the main body 284. The front end of the enlarged portion 281 is provided with a bent portion 241 that is bent so that the edge is along the inner plate 211 of the drawer door 201. The bent portion 241 is attached to the drawer door 201 so that the upper end of the bent portion 241 is positioned below the center of the drawer door 201 in the height direction. Further, it is attached to the portion of the drawer door 201 above the base end portion of the top rail 203.

  By providing the enlarged portion 281 between the bent portion 241 and the door frame 205, the size of the fixing portion between the door frame 205 and the drawer door 201 is increased in the height direction. Insufficient strength of the attachment portion between the rail device 202 and the drawer door 201 attached to the lower portion can be compensated. That is, the stress generated when the drawer door 201, particularly the drawer door 201 is pulled out or pushed back by holding the upper end portion thereof, can be reduced from being concentrated on the front end portion of the door frame 205.

  At the upper end of the main body portion 284, a flange portion 285 formed by being bent so as to be substantially horizontal with respect to the upper surface portion 282 is provided. A flange cutout portion 285a in which a part of the flange is cut out is provided in front of and / or behind the flange portion 285. The container 206 can be fixed by inserting a part of the container 206 into the flange notch 285a.

  The upper surface portion 282 is provided with a rectangular hole 286 and a round hole 287 for fixing to the top rail 203. The rectangular hole 286 is a locking portion in the present invention, and is provided behind the center in the longitudinal direction of the door frame 205. In particular, it is desirable that the main body 284 is provided behind the center in the longitudinal direction. The rectangular hole 286 is large enough to fit the hook-shaped portion 231 provided on the top rail 203.

  The round hole 287 has a length necessary for securing the strength of the round hole 287 from the front end of the upper surface portion 282 and / or a hole provided so as to correspond to the fixing hole 232 provided in the top rail 203. It is.

  A main body notch 288 is formed in the main body 284 at a position corresponding to the rectangular hole 286. The main body notch portion 288 is formed by cutting a part of the main body portion 284 into a substantially U shape, raising the notch, and bending the notch substantially perpendicularly to the main body portion 284 to the outside of the cabinet. . For this reason, a body hole 289 is formed at a location where the body notch 288 of the body 284 is formed.

  Here, a method of fixing the door frame 205 and the top rail 203 will be described. First, the hook-shaped portion 231 provided on the top rail 203 is hooked into the rectangular hole 286 of the door frame 205. That is, the vertical part 231a of the bowl-shaped part 231 is passed through the rectangular hole 286 to the upper part of the upper surface part 282 of the door frame 205, and the door frame 205 is shifted forward relative to the top rail 203, thereby forming the bowl-shaped part 231. The horizontal portion 231b is moved to the upper surface of the front end portion of the rectangular hole 286. Next, a screw is screwed into the fixing hole 232 provided in the top rail 203 from above the upper surface portion 282 of the door frame 205 through the round hole 287 of the door frame 205.

  As a result, the door frame 205 and the top rail 203 are fixed to each other by the first fixing portion fixed by the bowl-shaped portion 231 and the rectangular hole 286, and the second fixing portion fixed by the rectangular hole 286, the round hole 287, and the screw. The two places are securely fixed. By attaching at least one of the fixing parts to the hooking system composed of the projecting part and the locking part, the door frame 205 can be easily attached to and detached from the top rail 203. In addition, it is desirable to make it the system which hooks a 2nd fixing | fixed part from the point which resists the force which acts on a 2nd fixing | fixed part upward.

  Further, in the present embodiment, the main body notch portion 288 is formed so as to cover the horizontal portion 231b of the flange-shaped portion 231 protruding from the upper surface of the rectangular hole 286 and the upper surface portion 282. Thereby, it is possible to prevent the hand and the finger from being damaged by the rectangular hole 286 and the hook-shaped portion 231 with a simple configuration, and the safety is improved. In addition, since the first fixed portion is difficult to see, the appearance design can be improved.

  The attachment of the refrigerator inner box 110 and the rail device 202 will be described by taking the freezer compartment 104 of the drawer-type storage compartment as an example. FIG. 6 is a cross-sectional view showing the inner box and the mounting portion of the rail device in the freezer compartment of the refrigerator in the first embodiment of the present invention.

  First, the rail device 202 will be described in more detail.

  The cross-sectional shape perpendicular to the longitudinal direction of the cabinet rail 222 is not symmetrical, and the side surface having the higher height is fixed to the inner surface of the inner box 110.

  The middle rail 221 has a I-shaped cross section and a shape having flanges protruding left and right in the vertical direction. The lower flange of the upper and lower flanges is held by the cabinet rail 222 so as to be movable in the longitudinal direction.

  The top rail 203 has a U-shaped cross section, and holds the flange on the middle rail 221 so as to be movable in the longitudinal direction.

  Each of the cabinet rail 222 and the top rail 203 holds a plurality of rotation support members 145 by a rotation support member holding portion 146, and the middle rail 221 is movably held by the rotation support member 145. As the rotation support member 145, a bearing can be used.

  More specifically, the cabinet rail 222 holds the center of the upper and lower flanges of the middle rail 221 from the three directions via the plurality of rotation support members 145.

  Further, the top rail 203 holds the center rail 221 centered on the upper flange from three directions via a plurality of rotation support members 145.

  By combining the cabinet rail 222, the middle rail 221 and the top rail 203 in this way, the middle rail 221 can move in the longitudinal direction on the cabinet rail 222. Further, the top rail 203 is movable on the middle rail 221 in the longitudinal direction. That is, the top rail 203 can move in the longitudinal direction on the cabinet rail 222 via the middle rail 221.

  Further, the middle rail 221 and the top rail 203 can move smoothly as the plurality of rotation support members 145 rotate.

  The top rail 203, the middle rail 221, the cabinet rail 222, and the rotation support member 145 are attached to the inner box 110 in a state of being assembled in advance.

  Next, attachment of the rail device 202 to the inner box 110 will be described.

  As shown in FIG. 6, a rail mounting portion 223 formed integrally with the cabinet rail 222 is disposed so as to come into contact with the side of the inner box 110 and fixed to the side of the inner box 110 with screws 400. .

  At this time, since the inner box 110 serving as a mounting surface is mainly molded from resin, even if screws are directly fixed to the inner box 110, it is impossible to secure a strength that can withstand the load applied to the rail device 202. Therefore, as means for securely fixing the rail device 202, the rail attachment portion 223 is attached to the rail holding member 270 embedded in the heat insulating material 111 via the inner box 110.

  The rail holding member 270 is mainly formed of a metal material such as iron. Further, by fixing the rail holding member 270 in a predetermined position on the inner surface of the inner box 110 in advance, and then filling the space between the inner box 110 and the outer box 112 with the foam heat insulating material and burying it in the heat insulating material 111, The holding force of the rail holding member 270 can be further improved.

  The rail holding member 270 is integrally formed with a rail holding portion 270a fixed by the rail mounting portion 223 and the screw 400, and an inward fall prevention means 270b for preventing the rail device 202 from falling inward. The inward fall prevention means 270b is a lateral flange portion formed at the lower portion of the rail holding portion 270a.

More specifically, the inward fall prevention means 270b separates the inner box 110 from the lower part of the rail holding part 270a, which is a vertical flange portion formed so as to be in close contact with the inner box 110 from the heat insulating material 111 side, and the outer box 112. The tip portion is formed by bending downward. And since the horizontal flange part of the inclining prevention means 270b receives the heat insulating material 111 by the surface and the horizontal flange part bites into the heat insulating material, the strength of the rail holding member 270 can be ensured. As a result, the rail mounting portion 223 can be prevented from falling to the inside of the freezer compartment, the rail device 202 can be prevented from falling in the direction of the inside of the refrigerator, and the drawer door 201 can be opened and closed smoothly. .

  In addition, the inward fall prevention means 270b of the horizontal flange portion may be integrally formed by bending from the upper part of the rail holding part 270a, and the inward fall prevention means 270b may be formed at both the upper part and the lower part. As a result, the upper and lower horizontal flange portions receive heat insulating material 111 on the surface with respect to the rail holding portion 270a, and the upper and lower horizontal flange portions bite into the heat insulating material, thereby further ensuring the strength of the rail holding member 270. it can.

  In addition, the partition wall 108 serving as the bottom wall of the freezer compartment 104 has bottom surface stepped portions 108a formed on both sides, and the bottom surface stepped portion 108a is one step higher than the central portion serving as the reference surface of the partition wall 108 toward the depth direction. Is formed.

  And the rail apparatus 202 is arrange | positioned on the bottom face level | step-difference part 108a. Further, a side stepped portion 110a is formed on the side wall surface portion of the inner box 110 to which the rail device 202 is fixed. The side stepped portion 110a is formed to be recessed toward the outer box 112 side than the upper side wall surface portion in the freezer compartment 104, and the wall thickness is reduced.

  Therefore, since the rail device 202 is placed on the bottom stepped portion 108a and fixed to the side stepped portion 110a with screws, the rail device 202 jumping out into the storage space can be suppressed, and the full width of the container 206 in the freezer compartment 104 can be suppressed. The dimensions can be increased and the invalid space can be reduced.

  Further, since the rail device 202 is assembled by being placed on the bottom surface step portion 108a, workability can be improved. Furthermore, since the wall thickness of the partition wall 108 is increased at the bottom surface step portion 108 a, the metal rail device 202 in the freezer compartment 104 is cooled, and the partition wall that becomes the top surface of the vegetable compartment 103 in the lower part It is possible to prevent 108 from condensing.

  Next, attachment of the refrigerator inner box 110 and the rail device 202 will be described by taking the vegetable compartment 103 of the drawer-type storage compartment as an example. FIG. 7 is a cross-sectional view showing the inner box and the mounting portion of the rail device in the vegetable room of the refrigerator in the first embodiment of the present invention.

  As shown in FIG. 7, the rail holding member 280 of the vegetable compartment 103 formed at the lowermost part is disposed in the heat insulating material 111 and includes a rail holding portion 280a and an inward fall prevention means 280b. The rail holding portion 280a is formed of a substantially L-shaped vertical flange portion and a horizontal flange portion, and is in close contact with the side surface portion and the bottom surface portion of the inner box 110. The inward fall prevention means 280b is integrally formed with a horizontal flange portion that is a bottom surface portion of the rail holding portion 280a, and is formed as a lower flange portion that is directed downward in a direction away from the inner box 110.

  Since the inward fall prevention means 280b is a lower flange portion that faces downward and is embedded in the heat insulating material 111, even if a moment acts on the rail mounting portion 223 in the direction of falling into the vegetable compartment, the inner portion of the lower flange portion Since the fall prevention means 280b is blocked by the heat insulating material 111 filled in the lower part thereof, the fall prevention unit 280b can be prevented from falling down, and the strength of the rail holding member 280 can be further secured, and the inside of the rail device 202 of the vegetable compartment 103 toward the inside Can be prevented.

  In addition, the bottom wall 401 of the vegetable compartment 103 is formed with bottom surface step portions 401a on both sides, and the bottom surface step portion 401a is formed one step higher than the central portion serving as the reference surface of the bottom wall 401 and is formed in the depth direction. Yes.

  And the rail apparatus 202 is arrange | positioned on the bottom face level difference part 401a. Further, a side stepped portion 110a is formed on the side wall surface portion of the inner box 110 to which the rail device 202 is fixed. The side stepped portion 110 a is formed so as to be recessed toward the outer box 112 than the upper side wall surface portion in the vegetable compartment 103, and the wall thickness is thin.

  The rail mounting portion 223 is fixed to the side surface by a metal rail holding member 280 and a screw 400 with the side surface stepped portion 110a interposed therebetween.

  Accordingly, since the rail device 202 is placed on the bottom surface step portion 401 a and fixed to the side surface step portion 110 a with screws, the rail device 202 jumping out into the storage space can be suppressed, and the full width of the container 206 in the vegetable compartment 103. The dimensions can be increased and the invalid space can be reduced.

  Further, since the rail device 202 is assembled by being placed on the bottom surface step 401a, workability can be improved. Furthermore, since the wall thickness of the bottom wall 401 is increased at the bottom step 401a, heat insulation can be ensured.

  Moreover, the drawer door 201 of the lowermost vegetable compartment 103 is below the drawer door 201 of the upper freezer compartment 104, and when the user pulls out the drawer door 201, the position of the lowermost vegetable compartment 103 of the vegetable compartment 103 is positioned. The drawer door 201 is in a position where it is easy to put weight on it, and there is a possibility that an external load amount may be applied in addition to the load of the storage amount, and the rail holding member 280 is tilted inward to become a substantially L-shaped rail holding portion 280a and a lower flange portion Since the prevention means 280b is integrally formed, it is possible to keep the rail device 202 of the lowermost drawer door 201 from falling down more firmly.

  Since the side wall thickness of the freezer compartment 104 and the vegetable compartment 103 is reduced by the side stepped portion 110a, a vacuum heat insulating material (not shown) is made to correspond to the portion where the rail device 202 is disposed. Heat insulation can be secured by attaching a vacuum heat insulating material having a height dimension larger than that between the rail device 202 of the freezer compartment 104 and the vegetable compartment 103 to the outer box 112.

  The arrangement relationship between the container 206 and the rail device 202 will be described in more detail.

  FIG. 8 is a cross-sectional view showing a state where 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. 8, the container 206 is a container for storing beverages, frozen foods, and the like filled with vegetables and PET bottles, and is a resin box having an open top surface. 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 door frame 205 and the top rail 203 by arranging the narrow portion 261 between the two top rails 203 and placing the step 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. 9 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. 9A, 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. However, as shown in FIGS. 9B and 9C, the side surface of the container 206 is substantially straight, and the container 206 is not provided with the stepped portion 262. You may support by the side of the right and left both ends of a bottom part (refer (B) of FIG. 9), or you may support below the right and left both ends of the bottom part of the container 206 (refer (C) of FIG. 9).

  9 shows the positional relationship between the rail device 202 and the container 206, and the door frame 205 is omitted and not shown.

  FIG. 10 is a perspective view of the refrigerator container according to Embodiment 1 of the present invention.

  As shown in FIG. 10, the container 206 includes a flange portion that protrudes outward around the opening. That is, a front flange portion 206a is provided at the upper end portion of the front surface, a side flange portion 206b is provided at the upper end portions of both side surfaces, and a rear flange portion 206c is provided at the upper end portion of the rear surface. The flange portion is formed so that the side walls of the front surface, the side surface, and the back surface are folded back, and the inside of the flange portion is desirably hollow in terms of weight reduction. By providing this flange portion, the strength of the opening of the container 206 can be increased.

  The step 262 provided at the lower part of both side surfaces of the container 206 is provided with a protrusion 206d integrally formed with the container 206 and projecting downward and forward and / or rearward. These protrusions 206d are inserted into a notch-shaped flange notch 285a formed in the door frame 205.

  In this way, the front flange portion 206a of the container 206 is fixed to the container fixing means 301 of the drawer door 201, and the protrusion 206d is fixed to the flange cutout portion 285a of the door frame 205, thereby lowering the drawer door 201 downward. It is possible to compensate for insufficient strength of the mounting portion between the rail device 202 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 by setting the position serving as a fulcrum of the pulling force behind the drawer door 201, the mounting portion of the top rail 203 or the mounting portion of the rail fixing portion is protected from damage. Is possible.

  Further, a bottom rib 206e is provided at the bottom of the container 206 so as to protrude inward from the bottom. The bottom rib 206e is provided in front of the center in the depth direction of the container 206, that is, on the drawer door 201 side after the container 206 is installed in the vegetable compartment 103 or the freezer compartment 104. The bottom rib 206e is provided in the width direction across both side surfaces of the container 206.

  The container 206 is partitioned by the bottom rib 206e into two regions, a first storage portion 263 disposed at the front and a second storage portion 264 disposed at the rear. The depth of the first storage part 263 is configured to be deeper than the depth of the second storage part 264.

  As described above, when the rail device 202 is fixed to the inner box 110 and the door frame 205 fixed to the drawer door 201 is connected to the top rail 203 of the rail device 202, the drawer door 201 is connected to the rail device 202. With this function, the container 206 can be pulled out from the heat insulating box 101 or pushed back.

  An arrangement relationship between the door frame 205, the rail device 202, the container 206, and the opening of the storage room (the vegetable room 103 or the freezing room 104) will be described.

  FIG. 11 is a side view of the main part in a state in which the drawer door of the refrigerator in Embodiment 1 of the present invention is pulled out to the forefront.

  In a state in which the drawer door 201 is pulled out to the forefront, that is, in a state in which the vegetable compartment 103 and the freezer compartment 104 are fully opened, the rear end of the container 206 is positioned in front of the openings of the vegetable compartment 103 and the freezer compartment 104. To do. That is, the maximum pull-out distance of the drawer door 201 is a length that allows the container 206 to be completely opened. For this reason, it is easy to store food in the back of the container 206 and take out food from the back. Moreover, since the container 206 does not interfere with the upper heat insulating door 107 and the drawer door 201, the container 206 can be easily attached and detached.

  In a state in which the drawer door 201 is pulled out to the forefront, the door frame 205 is configured such that the rear end A is positioned behind the openings of the vegetable compartment 103 and the freezer compartment 104. In addition, the hook-shaped portion 231 and the rectangular hole 286 that are the first fixing portions are configured to be positioned in front of the opening.

  Further, the main body hole 289 formed by configuring the main body notch 288 covering the rectangular hole 286 and the horizontal portion 231b of the flange-shaped portion 231 protruding from the upper surface of the upper surface portion 282 is forward of the rear end of the container 206. To position. More desirably, it is located behind the bottom rib 206e of the container 206. As a result, the container 206 or the side surface of the second storage portion 264 is positioned in the back of the main body hole 289, and even if a finger or the like is inserted into the main body hole 289 from the side, Hit the side and no more fingers. For this reason, even if the drawer door 201 is closed in this state, fingers and the like are not caught. Further, since the main body hole 289 is less noticeable, the appearance design can be improved.

  As described above, in the present embodiment, the enlarged portion 281 is provided between the drawer door 201 and the main body portion 284 of the door frame 205, the bent portion 241 is provided on the door frame 205, and the bent portion 241 is placed on the top. The container 206 is attached to the drawer door 201 above the base end portion of the rail 203, and the container 206 is fixed to the container fixing means 301 of the drawer door 201 and the flange notch 285a of the door frame 205, so that the container 206 is connected to the drawer door 201. By regulating the position of the door frame 205, even when the drawer door 201 is pulled out or pushed back, the stress does not concentrate on the mounting portion of the top rail 203, and the bent portion 241 or the door frame Since it is distributed to the parts connected via 205, it is possible to improve the mounting strength of the drawer door 201 and the top rail 203 as a whole. To become.

  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. Or, 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 door frame 205 provided with the enlarged portion 281 protruding upward from the attachment portion is attached, and the container fixing means 301 is provided above the attachment portion. For this reason, the position serving as the fulcrum of the pulling force can be set upward, and the moment applied to the attachment portion is reduced, so that the attachment portion of the top rail 203 can be protected from damage.

  Further, the rear end A of the door frame 205 covers almost the entire length of the top rail 203 so as to be located behind the openings of the vegetable compartment 103 and the freezing compartment 104 even when the drawer door 201 is pulled forward. Therefore, the load of the container 206 and the stored items therein can be dispersed throughout the top rail 203.

  Furthermore, when the drawer door 201 is pulled out, a diagonally forward force acts on the upper end of the drawer door 201, and thus a downward force acts on the second fixed portion located in the front. On the other hand, as a reaction force, an upward force is increased in the first fixed portion located rearward.

  However, in the present embodiment, since the first fixing portion is configured to be positioned in front of the opening, the distance between the upper end of the drawer door 201 and the first fixing portion is shortened. Since the moment acting on the portion can be reduced, the moment acting upward on the first fixed portion can be reliably resisted, and deformation of the door frame 205 and the top rail 203 can be suppressed. Further, since the first fixing portion is provided behind the center in the longitudinal direction of the door frame 205, the moment acting on the first fixing portion can be reduced and the distance from the second fixing portion provided at the front end. The door frame 205 and the top rail 203 can be securely fixed without rattling.

  Furthermore, it is possible to prevent fingers from being damaged by the top rail 203 by covering almost the entire length of the top rail 203. In addition, since the rear end A of the door frame 205 is positioned behind the opening, it is possible to prevent a finger or the like from being caught between the rear end of the top rail 203 and the opening, thereby improving safety. Furthermore, since the top rail 203 becomes difficult to see, the appearance design can be improved.

  In addition, since the first fixing portion is configured to be positioned in front of the rear end of the container 206, the stress applied to the first fixing portion can be suppressed by the rigidity of the container 206, and the deformation of the rail device 202 can be suppressed. Can be suppressed.

  Furthermore, since the drawer door 201 includes the side ribs 302 on both sides of the inner surface, the vertical deformation of the drawer door 201 can be suppressed, and the distortion of the drawer door 201 can be reduced. Thereby, it can prevent that the packing 207 leaves | separates from the heat insulation box 101, and a space | gap generate | occur | produces, and it becomes possible to improve cooling performance.

  In particular, since the side ribs 302 have a constant height below the center in the longitudinal direction, the side ribs 302 of the drawer doors 201 do not interfere with the door frame 205 attached below the center in the height direction of the drawer doors 201. Stiffness can be improved. Or since the width below the center in the longitudinal direction is constant, the side rib 302 can improve the rigidity of the drawer door without interfering with the door frame 205.

  Further, the side rib 302 has a height at least below the center in the longitudinal direction of the side rib 302 so as to be equal to or greater than a gap formed between the inner surface of the drawer door 201 and the upper end of the container 206. I have. Thereby, when the container 206 is pulled out together with the drawer door 201, it is possible to reduce the cold air accumulated between the drawer door 201 and the front surface of the container 206 from flowing out of the vegetable compartment 103 and the freezer compartment 104. The performance can be improved.

  Further, the height below the center in the longitudinal direction of the side rib 302 is higher than the gap formed between the inner surface of the drawer door 201 above the upper end of the bent portion 241 and the front surface of the container 206. If so, the side rib 302 and the enlarged portion 281 of the door frame 205 can reduce the outflow of cool air accumulated between the drawer door 201 and the front surface of the container 206, and the cooling performance can be improved. Since it is possible to prevent a finger or the like from being sandwiched between the enlarged portion 281 and the container 206, safety is improved.

  Further, if the height below the center in the longitudinal direction of the side rib 302 is equal to or higher than the width of the enlarged portion 281 of the door frame 205 fixed to the drawer door 201, the enlarged portion 281 of the door frame 205. Since the enlarged portion 281 can prevent a hand or a finger from being damaged, the safety can be improved, and the enlarged portion 281 can hardly be seen.

  As described above, in the present embodiment, by suppressing the deformation of the rail device 202 and reducing the distortion of the drawer door 201, the sealing performance of the packing 207 of the drawer door 201 can be secured and the cooling performance can be improved. It becomes possible.

(Embodiment 2)
FIG. 12 is a side view of an essential part of the refrigerator in the second embodiment of the present invention. 12A shows a state where the drawer door 201 is pulled out, and FIG. 12B shows a state where the drawer door 201 is closed. FIG. 13 is a cross-sectional view of the vegetable compartment 103 as viewed from above, and shows a state in which the drawer door 201 is closed. In FIGS. 12 and 13, the container 206 is not shown for the sake of simplicity.

  In the present embodiment, only differences from the first embodiment will be described, and description of similar configurations, operations, and actions will be omitted.

  As shown in FIG. 12, in the embodiment of the present invention, a machine room 501 is provided on the back side of the vegetable room 103 which is the lowermost storage room. The machine room 501 is partitioned by the inner box 110 as a space different from the vegetable room 103.

  As shown in FIG. 2, the top surface of the refrigerator 100 is formed in a stepped recess toward the back of the refrigerator, and a compressor and a moisture remover (not shown) are provided in the stepped recess. When the components on the high pressure side of the refrigeration cycle are stored, the machine room 501 has a drain pan for receiving defrost water generated when defrosting the frost and ice adhering to the evaporator and its surroundings. (Not shown) is accommodated.

  As another embodiment, the compressor 100 is not provided on the top surface of the refrigerator 100, and a high pressure of a refrigeration cycle such as a compressor, a condenser, and a dryer is provided in the machine room 501 like a refrigerator having a general configuration. The side components may be accommodated.

  As shown in FIG. 12A, the rear end of the cabinet rail 222, which is a fixed rail, is fixed forward from the front surface of the machine room 501. However, as shown in FIGS. 12B and 13, when the drawer door 201 is closed, the middle rail 221, the top rail 203, and the rear end of the door frame 205 that are moving rails are in the machine room 501. Reach up to both sides.

Furthermore, as shown in FIG. 13, the machine room 501 is configured to become wider toward the back side. That is, a substantially V-shaped gap portion 502 is provided on both side surfaces of the machine room 501 so that the width becomes narrower in the rear direction. The gap 502 forms substantially the same gap in the vertical direction on the side surface of the machine room 501.

  According to the present embodiment, the door frame 205 has a sufficient length so that the rear end of the door frame 205 is positioned on both side surfaces of the machine room 501 in a state where the drawer door 201 is closed. For this reason, the load of the container 206 and the storage thing in it can be disperse | distributed to the whole top rail 203, and a deformation | transformation of the rail apparatus 202 can be suppressed.

  In addition, since the gaps 502 are provided on both side surfaces of the machine room 501 and the rear ends of the cabinet rails 222 are located in front of the front surfaces on both side surfaces of the machine room 501, the cabinet rails 222 are fixed. A sufficient space can be secured between the rear end of the cabinet rail 222 and the machine room 501 to improve the workability of the mounting.

  Further, since the gap portion 502 forms substantially the same gap in the vertical direction, it becomes an air passage for cooling cold air flowing from the top to the bottom on the back side of the container 206, and the inside of the vegetable compartment 103 can be efficiently cooled.

  In the above embodiment, the storage room located at the lowermost stage has been described as being the vegetable room 103. However, it is obvious that the same effect can be obtained even in the freezing room 104. In addition, the flow of the cooling cold air has been described as flowing from the top to the bottom on the back side of the container, but it is obvious that the same effect can be obtained even when flowing from the bottom to the top.

  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 room, and further, such as a unit kitchen equipped with a drawer. It can also be developed in fields that require design design.

100 Refrigerator 101 Insulation box 102 Cold room 103 Vegetable room (storage room)
104 Freezer room (storage room)
105 Ice Making Room 106 Switching Room 107 Heat Insulating Door 108 Partition Wall 108a Bottom Stepped Part 110 Inner Box 110a Side Stepped Part 111 Heat Insulating Material 112 Outer Box 145 Rotating Support Member 146 Rotating Support Member Holding Part 201 Drawer Door 201a Hand Held Part 202 Rail Device 203 Top rail (moving rail)
205, 305 Door frame 206, 306 Container 206a Front flange portion 206b Side flange portion 206c Rear flange portion 206d Projection portion 206e Bottom rib 207 Packing 211 Inner plate 221 Middle rail (moving rail)
222 Cabinet rail (fixed rail)
223 Rail mounting portion 231 Gutter-shaped portion 231a Vertical portion 231b Horizontal portion 232 Fixing hole 241 Bending portion 261 Narrow width portion 262 Step portion 263 First storage portion 264 Second storage portion 270, 280 Rail holding member 270a, 280a Rail holding portion 270b, 280b Inward fall prevention means 281 Enlarged portion 282 Upper surface portion 283 Side surface portion 284 Main body portion 285 Flange portion 285a Flange notch portion 286 Rectangular hole 287 Round hole 288 Main body notch portion 289 Main body hole portion 301 Container fixing means 302 Side rib 303 Below Rib 401 Bottom wall 401a Bottom step 501 Machine room 502 Gap

Claims (4)

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, a storage chamber formed inside the heat insulating box and having an opening on the front surface; A container provided inside the storage chamber and having an upper surface opened, a drawer door that closes the opening so as to be openable and closable, a moving rail that allows the container to move back and forth together with the drawer door, the moving rail, and the A door support member that fixes the drawer door, and when the drawer door is pulled out to the forefront, the fixed portion between the door support member and the moving rail is located in front of the opening, and the door support member A rear end of the refrigerator is located behind the opening. 2. The refrigerator according to claim 1, wherein the fixed portion is a protrusion provided on the moving rail and a locking portion provided rearward from a center in a longitudinal direction of the door support member. The refrigerator according to claim 2, wherein the locking portion is located in front of a rear end of the container. The refrigerator according to claim 2, wherein the door support member includes a cutout portion and covers the locking portion by bending the cutout portion.