JP4270015B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator provided with a drawer device, and more particularly to a structure for attaching a drawer rail.

  In recent years, as the size of refrigerators has increased, the amount of storage tends to increase, and in order to increase the amount of storage and improve usability, those equipped with a drawer device have become mainstream (for example, see Patent Document 1). ).

  Hereinafter, a refrigerator provided with the above-described conventional drawer device will be described with reference to the drawings.

  FIG. 7 is a perspective view of a drawer door of a conventional refrigerator. FIG. 8 is a cross-sectional view of a main part of a conventional refrigerator drawer device. FIG. 9 is a cross-sectional view of a conventional refrigerator drawer device. The refrigerator drawer device 17 of the prior art includes an openable / closable door 1 on the front surface of the refrigerator main body, a frame 2 having one end fixed to the left and right sides of the door, a connecting frame 16 connecting the rear ends, and a rear end of the frame 2. Mounted on the attached movable roller 3, the frame 2 fixed and attached to the inner box side wall 4, the fixed rail 5 and the fixed roller 6 slidably supporting the movable roller 3, the frame 2, and the connecting frame 16. It is comprised by the case 15 which was made. Further, the frame side surface 9 is a flat surface, and the groove portion 12 of the fixed rail 5 is also a flat surface.

  And the movable roller 3 attached to the rear end of the frame 2 fixed in advance on the left and right sides of the door rear surface of the door 1 is inserted into the groove portion 12 of the fixed rail 5 attached in advance to the refrigerator main body, and the bottom surface of the frame 2 and the fixed roller 6 is assembled so as to slide in contact therewith.

In the above configuration, when the door 1 is opened and closed, the frame 2 having one end fixed to the door 1, the connecting frame 16 connected to the frame 2, the case 15 and the movable roller 3 placed on these frames are fixed rails. 5 and the fixed roller 6 are allowed to slide in the front-rear direction synchronized with the door 1.
Japanese Utility Model Publication No. 60-27913

  However, in the conventional refrigerator, since the frame 2 fixed in advance on the left and right sides of the door 1 is incorporated in the fixed rail 5 attached in advance to the refrigerator body side, the mounting variation of the frame 2 or the fixed rail 5 and assemblability are reduced. In consideration of the design, a certain degree of clearance is set between the rail and the roller in the built-in state. Due to this clearance, left and right rattling occurs when the door 1 is opened and closed, and there is a problem that the operability is impaired and the quality during operation is not improved.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a refrigerator having a high quality with little backlash and an easy-to-use drawer with a small operating force even when a load is applied.

In order to solve the above-described conventional problems, a refrigerator according to the present invention includes a heat insulation box having a front opening made of an inner box, an outer box, and a foam heat insulating material filled between the inner box and the outer box. In the refrigerator, a rail member is provided on the left and right to allow the container provided in the interior to move back and forth, the rail member has a fixed rail and a moving rail, and the fixed rail and the moving rail are supported by bearings , respectively. It said fixed rail and fixed rail and the moving rail previously embedded do they state fixed by regulating the position by the position regulating means in the storage compartment side of said heat-insulating main body, whereas, drawer door inner plate provided with a position regulating means A door reinforcing plate is fixed to the door reinforcing plate, and the moving rail of the rail member is fixed to the door reinforcing plate, so that the container can be attached and detached upward when the door is fully opened in a state in which a stored item is normally taken in and out. Also It is.

As a result, the clearance between the fixed rail and the movable rail can be reduced, a high-quality drawer with little backlash can be configured, and the operability of the rail member can be improved.
In addition, since the withdrawal allowance can be increased, it is possible to pull out to the back of the container and look over to the back, preventing loss due to forgetting to use the object to be cooled in the container, or removing the container from the rail member Since it becomes easy to attach and detach, the usability can be improved.

The refrigerator of the present invention has a small backlash and can smoothly open and close the drawer even when a load is applied to the container, and the drawer allowance can be increased so that it can be pulled out to the back of the container. It is possible to overlook the part, and it is possible to prevent loss due to forgetting to use the object to be cooled in the container, and it is easy to attach and detach the container to the rail member, so it is possible to configure a high-quality and easy-to-use drawer storage it can.

Invention of Claim 1 is equipped with in the inside in the refrigerator provided with the heat insulation box which has a front opening part which consists of an inner box, an outer box, and the foam heat insulating material with which the said inner box and the outer box were filled. Rail members that allow the container to move back and forth are provided on the left and right sides. The rail member has a fixed rail and a moving rail. The fixed rail and the moving rail are respectively supported by bearings. said fixed rail in a state I embedded and fixed by regulating the position by the position regulating means in the storage compartment side of said heat-insulating main body, while fixing a door reinforcing plate in a drawer door inner plate provided with a position regulating means By fixing the moving rail of the rail member to the door reinforcing plate, the container can be attached and detached upward when the door is fully opened in a state in which a stored item is normally taken in and out. Move It is possible to reduce the clearance between Lumpur, it is possible to construct a high-quality drawer with less backlash, improvement in operability of the rail member can be achieved, also, it is possible to increase the extraction allowance Therefore, it is possible to pull out to the back of the container and look over to the back, and it is easy to prevent loss due to forgetting to use the object to be cooled in the container or to attach and detach the container to the rail member. A good drawer storage can be configured.

  The invention according to claim 2 is the invention according to claim 1, wherein the drawer door is formed by filling a foam heat insulating material between the door outer plate and the door inner plate, and the door reinforcing plate is used as the door inner plate. The inside of the foam insulation is buried in the foam insulation, and the door reinforcement plate can be prevented from dew condensation and frost formation when used in the refrigerator. Corrosion resistance can be improved.

  The invention according to claim 3 is the invention according to claim 2, wherein the door reinforcing plate has a single plate shape, and both the left and right rails are fixed to the drawer door inner plate to which the door reinforcing plate is attached. The strength of the door reinforcement can be increased, and the operation reliability can be secured over a long period of time.

  The invention according to claim 4 is the invention according to claim 2, wherein the door reinforcing plate is formed into a plate shape, and the left and right rails are fixed to the drawer door inner plate to which the door reinforcing plate facing each other is attached. The material required for the door reinforcing plate can be minimized, and the drawer door can be reduced in weight.

  The invention according to claim 5 is the invention according to claim 3 or 4, wherein the shape of the door reinforcing plate is a substantially U-shaped cross section, and the door reinforcing plate embedded in the foam heat insulating material is The number of surfaces in contact with the foam heat insulating material is increased, the door reinforcing plate is fixed inside the foam heat insulating material, and the strength can be ensured as compared with the case where the door reinforcing plate is formed in a plate shape.

The invention according to claim 6 is the invention according to any one of claims 1 to 5, further comprising an intermediate traveling rail between the fixed rail and the moving rail of the rail member, and the intermediate traveling rail and the fixed the engagement between the rail and the moving rail is supported by a bearing, which has a slidable the movable rail back and forth the bearing, it is possible to improve the drawer margin of the rail member by an intermediate running rail Since it can be pulled out to the back of the container and can be looked up to the back of the container, it is easy to prevent loss due to forgetting to use the container contents or to attach and detach the container to the rail member. Usability can be improved. Further, by providing the intermediate traveling rail, the clearance between the fixed rail and the moving rail of the rail member can be set to a minimum.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the door support member is attached to the moving rail of the rail member, and the door support plate is provided on the door inner plate provided with position restricting means. The member is fixed, and the rail member and the drawer door can be easily assembled.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments.

(Embodiment 1)
1 is a cross-sectional view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, and FIG. 3 is an exploded perspective view of a main part of a drawer door of the refrigerator of the same embodiment. 4 is an exploded perspective view of the main part of the refrigerator according to the embodiment, FIG. 5 is an exploded view of the rail member of the refrigerator according to the embodiment, and FIG. 6 is a sectional view of the rail member of the refrigerator according to the embodiment.

  1 to 6, a heat insulating box body 19 of a refrigerator 18 is filled with a foam heat insulating material 22 between an inner box 20 and an outer box 21, has a front opening 19a, and partition walls 23, 23a. , 26 form a refrigerator compartment 24, a switching chamber 25, a vegetable compartment 26, and a freezer compartment 27 from above.

  Moreover, the both sides | surfaces of the partition wall 26 have the opening part 26a, and the partition wall 26 is filled with the foam heat insulating material 22 similarly to the heat insulation box 19. FIG.

  In addition, the vegetable compartment 27 arranged at the upper part of the partition wall 26 has a cooling temperature of about 5 ° C., and the freezer compartment 28 arranged at the lower part has a cooling temperature of about −20 ° C. Is set to

  The vegetable compartment 27 and the freezer compartment 28 are respectively closed at the front opening 22a by the vegetable compartment door 29 and the freezer compartment door 30, and the vegetable compartment 27, the vegetable compartment door 29, the freezer compartment 28, and the freezer compartment door 30 are respectively By being connected by the rail member 31, it can be drawn and slid in the front-rear direction.

  The rail member 31 includes a fixed rail 31a, a movable rail 31b, an intermediate traveling rail 31c provided between the fixed rail 31a and the movable rail 31b, and an engagement between the intermediate traveling rail 31c, the fixed rail 31a, and the movable rail 31b. The fixed rail 31a is fixed to both side walls of the inner box 20 with the fixed rail 31a, the moving rail 31b, the intermediate running rail 31c, and the bearing 31d pre-installed. The storage rails and the drawer doors 29 are connected to each other by fixing the moving rails 31 b to the drawer doors 29.

  Here, the drawer door 29 has a foam insulating material 22 filled between the drawer door inner plate 34 and the drawer door outer plate 35, and the drawer door inner plate 34 has a convex portion 34a as a position regulating means. And the door reinforcement board 36 for raising the intensity | strength at the time of the rail member 31 attachment is provided in the inner side (foaming heat insulating material 22 side). Further, the door reinforcing plate 36 has a substantially U-shaped cross section, and two door reinforcing plates 36 are arranged independently corresponding to the left and right rail members 31, and are provided with screw holes for mounting.

  The moving rail 31b of the rail member 31 has a door support member 37 for supporting the drawer door 29. The door support member 37 is provided with a positioning hole 37a and a mounting screw hole 37b. Then, after filling and foaming the foam heat insulating material 22, the protrusion 34 a as a position regulating means of the drawer door inner plate 34 is engaged with the positioning hole 37 a of the door support member 37, and the drawer door inner plate 34 is inserted from the screw hole 37 b. Are attached and fixed to the door reinforcing plate 36. Thereafter, the door support member 37 integrated with the drawer door 29 is fixed to the moving rail 31 b of the rail member 31.

  In addition, since the door reinforcement board 36 is arrange | positioned at the side filled with the foam heat insulating material 22 of the drawer door inner board 34, the door reinforcement board 36 has a structure which is not exposed in each storage chamber.

  Moreover, the rail member 31 which consists of the fixed rail 31a, the moving rail 31b, and the intermediate | middle traveling rail 31c arrange | positioned via the bearing 31d between the fixed rail 31a and the moving rail 31b is integrated beforehand, The clearance between the rails can be set to a minimum.

  Furthermore, the left and right rail members 31 fixed to the both side wall surfaces of the inner box 20 have a symmetrical shape, and exhibit better slidability by providing both left and right.

  The container 32 of each storage chamber is supported by a door support member 37 fixed to the moving rail 31b of the rail member 31 after the rail member 31 is fixed to the inner box 20, and is synchronized with the drawer of each storage chamber door in the front-rear direction. The container 32 is detachable in the upward direction when it moves back and forth with the moving rail 31b and further opens each storage chamber door at least fully.

  Further, the fixed rails 31a of the pair of left and right rail members 31 are restricted in fixed positions via the inner box 20 by the connecting members 33 which are position restricting means.

  The connecting member 33 has a horizontal portion 33a and an H-shaped section having a vertical portion 33b at both ends of the horizontal portion 33a. The horizontal portion 33a is fixed inside the partition wall 26 between the upper partition wall 26b and the lower partition wall 26c. The vertical portion 33b protrudes from the opening portion 26a of the partition wall 26 to the outside of the partition wall 26 and is disposed on the side of the inner box 20 filled with the foam heat insulating material 22, so that the connecting member 33 is not exposed to each storage chamber. It has become.

  Further, both ends of the vertical portion 33b reach the vicinity of the center in the vertical direction of the vegetable compartment 27 and the freezing compartment 28, and the fixed rails 31a of the left and right rail members 31 in each storage chamber are fixed to the fixed portions 33c of the vertical portion 33b. At least the fixed portion 33c of the vertical portion 33b is in contact with the surface of the inner box 23 on the side filled with the foam heat insulating material 22. Further, the left and right vertical portions 33b are provided with holes 33d.

  When the connecting member 33 becomes large, it is divided into a plurality of front and rear parts, each having a horizontal portion 33a, a vertical portion 33b, and a fixing portion 33c, and if necessary provided with a hole 33d, the connecting member 33 is integrated. The same effect as that obtained can be obtained.

  The bearing 31d may be a rotation support member, and for example, a roller or the like may be used.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when each storage room door is pulled out, the moving rail 31b of the rail member 31 and the intermediate traveling rail 31c provided on both sides of each storage room are smoothly slid toward the front side as the rotation support member 31d rotates. Move.

  Along with this, the container 32 supported by the rail member 31 is also pulled out to the front, so that the object to be cooled stored in the container 32 can be taken out and a new object to be cooled can be stored.

  As described above, according to the present embodiment, the clearance between the fixed rail 31a and the movable rail 31b is fixed by fixing the rail member 31 in which the fixed rail 31a and the movable rail 31b are preliminarily assembled to both side walls of the inner box 20. It can be made small, and a high-quality drawer with little backlash can be configured. Further, by supporting the fixed rail 31a and the moving rail 31b with a bearing 31d as a rotation support member, the moving rail 31b can move smoothly even when a load is applied to the container 32, so that the operation force of the drawer is reduced. Can improve usability.

  Further, in the drawer door 29, a protrusion 34a as a position restricting means of the drawer door inner plate 34 is engaged with the positioning hole 37a of the door support member 37, and the door reinforcing plate is inserted from the screw hole 37b through the drawer door inner plate 34. 36, the door support member 37 integrated with the drawer door 29 is fixed to the moving rail 31b of the rail member 31, so that the right and left dimensional accuracy of the moving rail 31b is increased, and the operability of the rail member 31 is improved. It is possible to improve usability. Further, since the door support member 37 is provided, the rail member 31 and the drawer door 29 can be easily assembled.

  Further, the door reinforcing plate 36 is arranged on the side of the drawer door inner plate 34 filled with the foam heat insulating material 22 and is not exposed to each storage chamber, so that the door reinforcing plate is free from dew condensation and frost formation when the refrigerator is used. This can be prevented, and since it does not come into contact with air, the corrosion resistance of the door reinforcing plate can be improved.

  Further, since the two door reinforcing plates 36 are independently arranged corresponding to the left and right rail members 31, the cost can be reduced by reducing the material and the drawer door 29 can be reduced in weight.

  Further, since the door reinforcing plate 36 has a substantially U-shaped cross section, the door reinforcing plate embedded in the foam heat insulating material has more surfaces in contact with the foam heat insulating material. As compared with the case where the door reinforcing plate is fixed and formed in a plate shape, the strength can be ensured.

  In addition, by providing the intermediate traveling rail 31c, it is possible to increase the pull-out allowance of the moving rail 31b of the rail member 31, so that it can be pulled out to the inner part of the container 32, and can be overlooked to the inner part of the container 32, Loss due to forgetting to use the object to be cooled in the container 32 can be prevented, and the container 32 can be easily attached to and detached from the rail member 31, so that the usability can be improved.

  Moreover, since the vegetable room 27 and the freezing room 28 which adjoined up and down were each provided with the rail member 31, and the fixed rail 31a of each rail member 31 was integrally fixed by the connection member 33, the operativity of several storage chambers is carried out. It can be increased at the same time.

  In addition, since the connecting member 33 has an H-shaped cross section having the vertical portions 33b at both ends, the fixed rail 31a of the rail member 31 of the vegetable compartment 27 and the freezing compartment 28 adjacent to the vertical portion 33b is fixed integrally. By fixing the fixed rails 31a of the plurality of rail members 31 to one connecting member 33, it is possible to reduce the cost by reducing the number of parts.

  In the present embodiment, the moving rail 31b of the rail member 31 is described as having the door support member 37 for supporting the drawer door 29. However, the door supporting member 37 is not provided and the distal end portion of the moving rail 31b is provided. May be provided with a mounting portion, and the convex portion 34a of the drawer door 29 whose dimensions are restricted may be engaged and fixed.

  In the present embodiment, the rail member 31 and the container 32 are shared by the vegetables 27 and the freezer compartment 28. However, it is more costly to use materials that are made of different materials for each storage compartment depending on the storage configuration used. Reduction and improvement in reliability can be achieved.

  In the present embodiment, the vegetable compartment 27 and the freezing compartment 28 are described as using the rail member 31, but can be appropriately applied to a storage room equipped with a drawer container. For example, you may use for the switching room 25 located in the upper part of the vegetable compartment 26, the ice making room (not shown) attached to the side of the switching room 25, etc.

  In the present embodiment, the connecting member 33 has a horizontal portion 33a and an H-shaped cross section having the vertical portions 33b at both ends of the horizontal portion 33a, and the rail members 31 of the vegetable compartment 27 and the freezer compartment 28 are fixed integrally. As described above, a connecting member having a U-shaped cross section having vertical portions at both ends may be used for each of the vegetable compartment 27 and the freezing compartment 28. In this case, in a refrigerator in which the vegetable compartment 27 and the freezer compartment 28 are not provided vertically, it is possible to provide an easy-to-use drawer with a small operation force even when a high quality and load with little backlash are applied. In addition, heat transfer from the connecting member is further suppressed when the temperature zones of the plurality of storage chambers are different compared to when a plurality of rail members are fixed to one connecting member, and condensation on the storage chamber side having a high temperature zone is prevented. And increase in power consumption due to heat leakage can be suppressed.

  Note that the fixed rails of the pair of left and right rail members may be connected by a plurality of connecting members. In this case, since the connecting member can be reduced in size by dividing the connecting member into a plurality of parts, the cost can be reduced and the weight can be reduced.

  As described above, the refrigerator according to the present invention is small in play, can open and close smoothly even when a load is applied to the container, and has a high-quality and easy-to-use drawer storage. It can also be applied to applications such as a cooling storage drawer.

Cross-sectional view of the refrigerator in the first embodiment of the present invention AA sectional view of FIG. The principal part exploded perspective view of the drawer door of the refrigerator of the embodiment The principal part exploded perspective view of the refrigerator of the embodiment An exploded view of the rail member of the refrigerator of the same embodiment Sectional drawing of the rail member of the refrigerator of the embodiment Perspective view of a conventional drawer drawer door Sectional view of the main part of a conventional refrigerator drawer device Sectional view of a conventional refrigerator drawer device

Explanation of symbols

18 Refrigerator 19 Heat insulation box 19a Front opening 20 Inner box 21 Outer box 22 Foam insulation 29 Drawer door 31 Rail member 31a Fixed rail 31b Moving rail 31c Intermediate running rail 31d Bearing 32 Container 34 Drawer door inner plate 34a Protruding part 35 Door outer plate 36 Door reinforcement plate 37 Door support member

Claims (7)

In a refrigerator including a heat insulation box having a front opening made of an inner box, an outer box, and a foam heat insulating material filled between the inner box and the outer box, the container provided inside can be moved back and forth. provided rail member to the right and left, the rail member has a fixed rail and the moving rail, the fixed rail and the moving rail is supported by a bearing respectively said fixed rail and said fixed rail moving rail previously embedded do they state Is fixed to the inner surface of the storage chamber inside the heat insulating box by position restriction means, and on the other hand, a door reinforcing plate is fixed to the drawer door inner plate provided with the position restricting means, and the rail member is attached to the door reinforcing plate. The refrigerator is characterized in that the container is detachable in the upward direction when the door is fully opened to a state in which a stored item is normally taken in and out by fixing the moving rail .   The drawer door is filled with foam heat insulating material between the door outer plate and the door inner plate, and the door reinforcing plate is attached inside the door inner plate and is buried in the foam heat insulating material. The refrigerator according to claim 1.   The refrigerator according to claim 2, wherein the door reinforcing plate has a single plate shape, and both left and right rails are fixed to a drawer door inner plate to which the door reinforcing plate is attached.   The refrigerator according to claim 2, wherein the door reinforcing plate is formed in a plate shape, and the left and right rails are fixed to the drawer door inner plate to which the door reinforcing plate facing each other is attached.   The refrigerator according to claim 3 or 4, wherein the door reinforcing plate has a substantially U-shaped cross section. An intermediate running rail in between the fixed rail and the moving rail of the rail member, the intermediate running rail of engagement with the fixed rail and the moving rail is supported in bearings, sliding the moving rail back and forth the bearing The refrigerator according to any one of claims 1 to 5, wherein the refrigerator is made possible.   The refrigerator according to any one of claims 1 to 6, wherein a door support member is attached to a moving rail of the rail member, and the door support member is fixed to a door inner plate provided with position restricting means.