JP2005300033A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator provided with a drawer device which is of high quality with less rattling and is highly usable with a small force required to operate even when load is applied thereto. <P>SOLUTION: A rail member 31 is constituted of fixed rails 31a, moving rails 31b, intermediate traveling rails 31c provided between the fixed rails 31a and moving rails 31b, and a plurality of bearings 31d as rotation supporting members. The fixed rails 31a are fixed to both side wall surfaces of an inner box 20 with the fixed rails 31a, moving rails 31b, intermediate running rails 31c and bearings 31d assembled together in advance. The moving rails 31b are applied to a vegetable chamber 27 and a freezer chamber 28 which are vertically adjacent to each other. <P>COPYRIGHT: (C)2006,JPO&NCIPI

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. 6 is a perspective view of a drawer-type door of a conventional refrigerator. FIG. 7 is a cross-sectional view of a main part of a conventional refrigerator drawer device. FIG. 8 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 internal case 15 and the movable roller 3 placed thereon 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 the assemblability are reduced. In consideration of the design, a certain amount 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, the refrigerator of the present invention fixes a rail member in which a fixed rail and a moving rail are preliminarily incorporated to inner wall surfaces of a plurality of storage chambers, and then a container as a rail member. It is what I supported.

  As a result, the clearance between the fixed rail and the movable rail can be reduced, and a high-quality drawer with less play can be configured.

  Further, by supporting the space between the fixed rail and the moving rail with the rotation support member, the moving rail can move smoothly even when a load is applied to the container, so that the operation force of the drawer can be reduced.

  The refrigerator of the present invention has a small play in a plurality of storage rooms, and can smoothly open and close the drawer even when a load is applied to the container, and can constitute a drawer storage that is high-quality and easy to use.

  The refrigerator according to claim 1, wherein the refrigerator 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. The rail member which has a chamber and makes each container which was provided in a plurality of storage room interiors movable to the front and back is provided on the left and right, the rail member has a fixed rail and a moving rail, and the fixed rail and the moving rail are The rail member is fixed to the inner box wall surface in a state where the fixed rail and the moving rail are preliminarily incorporated, and then the container is supported by the rail member, and the fixed rail and the moving rail are By fixing the rail member in the assembled state to the inner box wall surface, the clearance between the fixed rail and the moving rail can be reduced, and a high-quality drawer with less play is configured. Door can be. Also, by supporting the space between the fixed rail and the moving rail with a rotation support member, even when a load is applied to the container, the moving rail can move smoothly, reducing the operating force of the drawer and improving usability. Can be measured. Moreover, the refrigerator which improved usability can be provided by applying to a some store room.

  According to a second aspect of the present invention, in the first aspect of the present invention, an intermediate traveling rail is provided between the fixed rail and the moving rail of the rail member, and the relationship between the intermediate traveling rail, the fixed rail, and the moving rail is provided. The support rail is supported by a rotation support member, and the movable support rail can be slid back and forth with the rotation support member. It can be pulled out to the back of the container, and it can be looked up to the back of the container, preventing loss due to forgetting to use the container contents, and it is easy to attach and detach the container to the rail member, improving usability Can be achieved. 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 the minimum.

  The invention according to claim 3 is the invention according to claim 1 or 2, further comprising position restricting means for restricting the fixed position of the fixed rail of the left and right rail members, and restricting the position of the rail member. As a result, it is possible to ensure the operability of the rail member and ensure the assembly reliability.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein a plurality of storage chambers are arranged adjacent to each other in the vertical direction, and can be easily obtained by using the same rail member. The dimensions at the time of withdrawal can be made the same, and the quality can be improved. Moreover, the position control means of the upper and lower storage rooms can be shared.

  The invention according to claim 5 is the invention according to claim 3 or 4, wherein the position restricting means is a connecting member that connects the fixed rails of the left and right rail members, and is disposed in a partition wall that partitions the storage chamber vertically. Since the mounting position and dimensions are regulated by connecting the left and right fixed rails, further operability of the rail member and assembly reliability can be ensured. Moreover, reduction of the food storage internal volume by arrange | positioning a connection member in a partition wall can be suppressed.

  The invention according to claim 6 is the invention according to claim 5, wherein the fixed rails of the rail members of the plurality of storage chambers are integrally fixed by the connecting members, and the rail members of the plurality of storage chambers are fixed. It is easy to make the operability the same, and assembling reliability can be ensured.

  The invention according to claim 7 is the invention according to claim 6, wherein the connecting member has a cross-sectional H shape having vertical portions at both ends, and fixed rails of the respective rail members are fixed to the vertical portions. By fixing the fixed rails of a plurality of rail members to one connecting member, the cost can be reduced by reducing the number of parts and further assembly reliability can be ensured.

  The invention according to claim 8 is the invention according to claim 7, wherein the plurality of storage chambers have different temperature zones, and holes are provided in the vertical portions at both ends of the connecting member. By providing a hole in the part, heat transfer from the connecting member can be suppressed when the temperature zones of the plurality of storage rooms are different, and condensation on the storage room side with a high temperature range can be prevented and an increase in power consumption due to heat leakage can be suppressed. .

  The invention according to claim 9 is the invention according to any one of claims 1 to 8, wherein the height to the upper end of the storage chamber provided with the rail member is 1000 mm or less, and food can be taken in and out. It is easy and the visibility of stored food is excellent.

  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, FIG. 3 is a schematic assembly view of the refrigerator of the same embodiment, and FIG. FIG. 5 is an exploded view of the rail member of the refrigerator of the embodiment, and FIG. 5 is a cross-sectional view of the rail member of the refrigerator of the embodiment.

  1 to FIG. 5, a heat insulating box 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 vertically adjacent to each other, and the front opening 22a is closed by the vegetable compartment door 29 and the freezer compartment door 30, respectively. 30 are connected to each other by a rail member 31 so that they 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 movable rail 31b is connected and fixed to the vegetable compartment door 29 of the vegetable compartment 27 and the freezer compartment door 30 of the freezer compartment 28 which are adjacent to each other in the vertical direction and have different storage temperature zones.

  In addition, 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 the moving rail 31b of the rail member 31 after the rail member 31 is fixed to the inner box 20, and is moved back and forth together with the moving rail 31b in synchronization with pulling out each storage chamber door in the front-rear direction. Further, the container 32 is detachable upward when each storage chamber door is fully opened.

  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 vertical center 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 connecting member 33 is preferably formed of a material having a linear expansion coefficient of 1.0 to 3.0 × 10 ⁻⁶ cm / cm · ° C. Moreover, it is desirable to form with the material whose heat conductivity is 0.1-0.2W / m * K.

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

  In addition, the height to the upper end surface of the vegetable compartment 27 which is an upper storage room to which the rail member 31 is applied is set to 1000 mm or less.

  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.

  Accordingly, the container 32 supported by the rail member 31 is also pulled out to the front, and 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, by restricting the mounting position of the fixed rail 31 a of the rail member 31 by the connecting member 33, the width dimension or parallelism of the pair of left and right rail members 31 can be maintained as specified, and the connecting member 33 can prevent the heat insulating box 19 from being attached. Both sides of the inner box 20 with the rail member 31 in which the clearance between the fixed rail 31a and the movable rail 31b is set small in advance is suppressed by suppressing a dimensional change due to heat shrinkage at the time of cooling after filling the foam heat insulating material 22 Since the dimensional accuracy between the pair of left and right rail members 31 can be kept high in the specification of fixing to the wall surface, the operability when the container 32 is pulled out can be enhanced by the connecting member 33 which is a position restricting means. In addition, it is possible to ensure operation reliability over a long period of time.

  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.

  Further, since the connecting members 33 are not exposed in the respective storage chambers, it is possible to suppress the reduction of the storage internal volume as compared with the case where the connecting members 33 are arranged in the respective storage chambers.

  Moreover, since the connecting member 33 that connects the left and right fixed rails 31a is embedded in the foam heat insulating material 22 of the heat insulating box 19, it is possible to prevent condensation and frost formation of the connecting member 33 when the refrigerator 18 is used. Furthermore, since the connecting member 33 does not come into contact with air, the corrosion resistance of the connecting member 33 can be improved.

  Further, the vegetable compartment 27 and the freezer compartment 28 are adjacent to each other in the vertical direction, and the vegetable compartment door 29 of the vegetable compartment 27 and the freezer compartment door 30 of the freezer compartment 28 are connected by the rail member 31, respectively. If used, it is possible to easily make the dimensions of the drawers the same, and the quality can be improved. Moreover, the position control means of the upper and lower storage rooms can be shared.

  Moreover, since the partition wall 26 which partitions the vegetable compartment 27 and the freezer compartment 28 up and down is provided, and the connection member 33 which connects the left and right fixed rails 31a is provided inside the partition wall 26, the connection member 33 is provided in a plurality of storage spaces. Reduction of the storage internal volume due to the arrangement can be suppressed.

  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 addition, since the holes 31c are provided in the vertical portions 31b at both ends of the connecting member 33, heat transfer from the connecting member 33 in the case where the temperature zones are different as in the storage room of the vegetable room 27 and the freezing room 28 adjacent to each other vertically. It is possible to suppress dew condensation on the side of the storage room where the temperature is high and increase power consumption due to heat leakage.

  Moreover, since the height to the upper end surface of the vegetable compartment 27 which is the upper storage room to which the rail member 31 is applied is set to 1000 mm or less, food can be easily taken in and out and the visibility of the stored food is excellent.

  In addition, the heat transfer amount can be effectively reduced by providing a plurality of holes 31c provided in the vertical portion 31b to such an extent that the strength can be maintained.

  Further, when the fixed rails 31a of the pair of left and right rail members 31 are connected in the front-rear direction by a plurality of connecting members 33, particularly when the rail member 31 is used in a large refrigerator, the connecting member 33 is divided into a plurality of parts. As a result, the connecting member 33 can be reduced in size, and the cost can be reduced.

  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 member 27 and the freezer compartment 28 are described as using the rail member 31, but can be appropriately applied to a storage room provided 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. Compared to the case where multiple rail members are fixed to one connecting member, heat transfer from the connecting member is further suppressed when the temperature zones of the plurality of storage rooms are different from each other, thereby preventing condensation on the side of the storage room having a high temperature zone and preventing heat. An increase in power consumption due to 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. Schematic assembly diagram of the refrigerator of the same 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

21 Refrigerator 22 Heat insulation box 22a Front opening 23 Inner box 24 Outer box 25 Foam insulation 26 Partition wall 27 Vegetable room 28 Freezer room 31 Rail member 31a Fixed rail 31b Moving rail 31c Intermediate traveling rail 31d Bearing 32 Container 33 Connecting member 33b Vertical part 33d hole

Claims (9)

  A refrigerator having a heat insulating 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, and having a plurality of storage rooms, and a plurality of storage rooms Rail members are provided on the left and right to allow the containers provided inside to be moved back and forth. The rail members have a fixed rail and a moving rail, and the fixed rail and the moving rail are supported by a rotation support member and fixed. A refrigerator characterized in that a rail member is fixed to an inner box wall surface in a state in which a rail and a moving rail are incorporated in advance, and then a container is supported by the rail member.   An intermediate traveling rail is provided between the fixed rail and the moving rail of the rail member, and the engagement between the intermediate traveling rail, the fixed rail and the moving rail is supported by a rotation support member, and the movement rail is supported by the rotation support member. The refrigerator according to claim 1, wherein the refrigerator is slidable back and forth.   The refrigerator according to claim 1 or 2, further comprising position restricting means for restricting a fixed position of the fixed rail of the left and right rail members.   The refrigerator according to any one of claims 1 to 3, wherein a plurality of storage rooms are arranged adjacent to each other in the vertical direction.   The refrigerator according to claim 3 or 4, wherein the position restricting means is a connecting member that connects the fixed rails of the left and right rail members, and is disposed in a partition wall that partitions the storage chamber vertically.   The refrigerator according to claim 5, wherein the fixed rails of the rail members of the plurality of storage rooms are integrally fixed by a connecting member.   The refrigerator according to claim 6, wherein the connecting member has an H-shaped cross section having vertical portions at both ends, and fixed rails of the respective rail members are fixed to the vertical portions.   The refrigerator according to claim 7, wherein the plurality of storage chambers have different temperature zones, and holes are provided in vertical portions at both ends of the connecting member.   The height to the upper end of the storage room provided with the rail member was 1000 mm or less, The refrigerator as described in any one of Claim 1 to 8 characterized by the above-mentioned.