JPWO2016117033A1 - refrigerator - Google Patents

Abstract

The refrigerator 100 is provided with a pair of rails 8 provided in the front and rear direction on both side wall portions 7 of the switching chamber 4, a door 4a for closing the opening of the switching chamber 4 so as to be openable and closable, and projecting rearward from the door 4a. A pair of support arms 10, a pair of rollers 22 provided on the outside of the rear part of each of the support arms 10, supported by the rail 8 so as to be movable in the front-rear direction, and provided in the switching chamber 4. A pair of support parts 13 that support the pair of support arms 10 and a storage container 11 held by the pair of support arms 10, and the storage container 11 is a bottom surface portion of the storage container 11 along the left-right direction. And ribs 12 projecting downward from the base and abutting against the pair of support arms 10.

Description

  The present invention relates to a refrigerator, and more particularly to a drawer door structure used for a refrigerator.

  Some conventional refrigerators adopt a drawer door structure as an installation structure of a door that closes a front side opening of a storage room so as to be freely opened and closed. This drawer door structure has a pair of rails provided in the front-rear direction on both side walls of the storage room, a door that closes the opening of the storage room so as to be openable and closable, and a pair of supports protruding rearward from the door An arm, a roller rotatably provided on the outer side of each rear portion of the support arm, and supported by a rail so as to be movable in the front-rear direction; a pair of support parts for supporting the pair of support arms in front of the roller; It has. And this drawer door structure becomes a structure which hold | maintains the storage container which accommodates food etc. by a pair of support arm. That is, in a state where the door closes the opening of the storage chamber, the storage container is disposed in the storage chamber. Further, by pulling out the door, the storage container can be taken out of the storage chamber, and food can be stored in the storage container and taken out of the storage container.

  In the conventional drawer door structure configured as described above, when pulling out the door, the center of gravity of the load of the door, the support arm, the storage container and the food stored in the container (hereinafter referred to as the center of gravity of the drawer door structure). ) Comes to the front of the support component, the rear end of the support arm is lifted, and the roller comes into contact with the upper surface of the rail. That is, when pulling out the door, if the center of gravity of the drawer door structure is in front of the support component, the roller is subjected to a load that is pushed downward from above. As a result, a moment is applied to the support arm such that the lower side of the support arm is twisted inward. And when the deformation of the support arm is increased by such a moment, there is a problem that the roller falls off from the rail.

  Therefore, a configuration in which the rear end portions of a pair of support arms are connected by a reinforcing support arm has been proposed for a conventional drawer door structure (see, for example, FIG. 7 of Patent Document 1). Moreover, this patent document 1 also discloses a configuration in which deformation of the pair of support arms is regulated by a regulating wall that protrudes upward from the bottom surface of the storage chamber (see FIGS. 2 and 3 of patent document 1). .

JP 2001-91148 A

  However, in the conventional drawer door structure provided with the support arm for reinforcement, the depth dimension (size in the front-rear direction) of the storage container is limited by the support arm for reinforcement, and the storage volume of the storage container is limited. There was a problem. Moreover, the conventional drawer door structure provided with the support arm for reinforcement is provided with the support arm for reinforcement on the pair of support arms, so that the cost and assembly man-hour of the refrigerator increase, and further, in the factory There existed a subject that the storage place of the support arm for reinforcement was required.

  On the other hand, since the conventional drawer door structure provided with the regulating wall regulates the deformation of the supporting arm by the regulating wall, the reinforcing supporting arm can be eliminated. However, since the conventional drawer door structure provided with the regulating wall needs to be provided on the bottom surface of the storage chamber, it cannot be adopted for a storage chamber that does not have a bottom surface near the support arm. For this reason, the subject that the adoption of the conventional drawer door structure provided with the control wall was restricted by the shape of the storage room occurred.

  The present invention has been made in order to solve the above-described problem, and an object thereof is to obtain a refrigerator having a drawer door structure that can eliminate the support arm for reinforcement and whose adoption is not limited by the shape of the storage chamber as compared with the conventional one. To do.

  The refrigerator according to the present invention includes a housing in which a storage room having an opening on the front side is formed, a pair of rails provided in the front-rear direction on both side walls of the storage room, and an opening of the storage room. A pair of doors that can be freely opened and closed, a pair of support arms projecting rearward from the doors, and a pair of support arms that are provided outside the rear portions of the support arms and supported by the rails so as to be movable in the front-rear direction. A supported part, a pair of support parts provided in the storage chamber and supporting the pair of support arms in front of the supported part, and a storage container held by the pair of support arms, The storage container has a rib that protrudes downward from the bottom surface of the storage container along the left-right direction and contacts the pair of support arms.

The refrigerator which concerns on this invention controls a deformation | transformation of a support arm, when a pair of support arm contact | abuts to the rib of a storage container. For this reason, the refrigerator which concerns on this invention can abolish the support arm for reinforcement provided in the conventional drawer door structure. Therefore, the refrigerator according to the present invention has an increased volume of the storage container, reduced cost and assembly man-hours, and secured space in the factory as compared with a conventional refrigerator having a drawer door structure with a supporting arm for reinforcement. An effect can be obtained.
Moreover, the refrigerator which concerns on this invention does not have components which must be provided in the bottom face part of a storage chamber like the control wall provided in the conventional drawer door structure. For this reason, the refrigerator which concerns on this invention can employ | adopt a drawer door structure also to the storage room which could not employ | adopt the drawer door structure provided with the control wall.

It is a perspective view which shows the refrigerator which concerns on Embodiment 1 of this invention. It is a perspective view which shows the drawer door structure which concerns on Embodiment 1 of this invention. It is sectional drawing which showed the switching chamber of the refrigerator which concerns on Embodiment 1 of this invention from the front. It is the Q section enlarged view of FIG. It is a right view which shows the storage container of the refrigerator which concerns on Embodiment 1 of this invention. It is a principal part enlarged view which shows another example of the refrigerator which concerns on Embodiment 1 of this invention. It is a principal part enlarged view which shows the refrigerator which concerns on Embodiment 2 of this invention. It is a principal part enlarged view which shows another example of the refrigerator which concerns on Embodiment 2 of this invention. It is a principal part enlarged view which shows the refrigerator which concerns on Embodiment 3 of this invention. It is a principal part enlarged view which shows another example of the refrigerator which concerns on Embodiment 3 of this invention.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing a refrigerator according to Embodiment 1 of the present invention.
The housing 1 of the refrigerator 100 according to Embodiment 1 has a storage room having an opening on the front side. In the first embodiment, a plurality of storage chambers are formed in the housing 1. Specifically, a refrigerator compartment 2 is formed at the top of the housing 1. An ice making chamber 3 and a switching chamber 4 are formed below the refrigerator compartment 2. A freezing room 5 is formed below the ice making room 3 and the switching room 4. A vegetable compartment 6 is formed below the freezer compartment 5.

  The opening of each storage chamber is provided with a door that closes the opening of each storage chamber in an openable and closable manner. Specifically, doors 2 a and 2 a having a double door structure are provided at the opening of the refrigerator compartment 2. The ice making chamber 3, the switching chamber 4, the freezing chamber 5 and the vegetable chamber 6 are provided with doors 3a, 4a, 5a and 6a, which are drawer door structures, respectively.

(Drawer door structure)
Then, the drawer door structure of the refrigerator 100 which concerns on this Embodiment 1 is demonstrated. In addition, the drawer door structure of the ice making room 3, the switching room 4, the freezing room 5, and the vegetable room 6 has the same structure. For this reason, below, the drawer door structure which concerns on this Embodiment 1 is demonstrated by making the switching chamber 4 into an example.

  FIG. 2 is a perspective view showing the drawer door structure according to Embodiment 1 of the present invention. FIG. 3 is a cross-sectional view showing the switching chamber of the refrigerator according to Embodiment 1 of the present invention from the front. FIG. 4 is an enlarged view of a portion Q in FIG. FIG. 5 is a right side view showing the storage container of the refrigerator according to Embodiment 1 of the present invention.

The drawer door structure according to the first embodiment includes a door 4a, a pair of support arms 10, a pair of rollers 22, a pair of rails 8, a pair of support components 13, and the like.
The pair of support arms 10 is provided on the back surface of the door 4a and protrudes rearward from the door 4a. In the first embodiment, the support arm 10 is formed of a thin plate. Therefore, the support arm 10 is formed in an L-shaped cross section having a vertical plate portion 10a and a horizontal plate portion 10b in order to ensure strength. However, the cross-sectional shape of the support arm 10 is arbitrary. For example, the thin plate may be processed into a shape having an L-shaped portion of the vertical plate portion 10a and the horizontal plate portion 10b, such as a horizontal U-shape (U-shape) or a Z-shape, and the support arm 10 may be used. Further, for example, a rod-like member having a square cross section or a round shape may be used as the support arm 10.

A roller 22 is rotatably provided outside the rear part of these support arms 10 (more specifically, outside the vertical plate part 10a). Moreover, in this Embodiment 1, these support arms 10 have the flange 14 in the inner edge part (end part on the side facing the rib 12 mentioned later).
Here, the roller 22 corresponds to the supported component of the present invention.

  The pair of support arms 10 configured as described above holds a storage container 11 that stores food and the like. The storage container 11 has a box shape with an open top. In addition, the storage container 11 according to the first embodiment has ribs 12 protruding downward from the bottom surface of the storage container 11 along the left-right direction. That is, the rib 12 is opposed to the inner end of the support arm 10 (in the case of having the flange 14, the flange 14). In a state where the door 4 a closes the opening of the switching chamber 4, the storage container 11 is disposed in the switching chamber 4.

The rail 8 has a cross section formed in, for example, a substantially horizontal U shape (U shape), and both side walls of the switching chamber 4 such that the substantially horizontal U-shaped opening faces the switching chamber 4. The portion 7 is provided in the front-rear direction. The rail 8 may be integrally formed with the both side walls 7 of the switching chamber 4. These rails 8 support rollers 22 so as to be movable in the front-rear direction. A pair of support parts 13 are provided on the bottom surface 9 of the switching chamber 4. The upper end portions of these support components 13 are slidably contacted with the lower surface portion of the support arm 10 in front of the roller 22, and are stored in the door 4 a, the support arm 10, the storage container 11, and the storage container 11. Supports the load of food.
The installation position of the support component 13 is not limited to the bottom surface portion 9 as long as the above load can be supported. For example, the support component 13 may be provided in the switching chamber 4, and the support component 13 may be provided on the side wall portions 7 and the like. In the first embodiment, a sliding component such as a slider is assumed as the support component 13, but a roller may be used as the support component 13.

(Explanation of drawer door operation)
The drawer door structure of the door 4a configured as described above operates as follows.
When the door 4 a closes the opening of the switching chamber 4, the roller 22 provided at the rear end portion of the support arm 10 is positioned in the vicinity of the rear end portion of the rail 8. In this state, the center of gravity of the load of the door 4a, the support arm 10, the storage container 11 and the food stored in the storage container 11 (hereinafter referred to as the center of gravity of the drawer door structure) is behind the support component 13. State. For this reason, the roller 22 is in contact with the lower surface of the rail 8.

  When the door 4a starts to be pulled out, the roller 22 rolls on the lower surface of the rail 8, and the support arm 10 slides on the support component 13. Thereby, the door 4a can be pulled out. In other words, the door 4a can be pulled out to store food or the like in the storage container 11 held on the support arm 10 (or food or the like can be taken out from the storage container 11). Here, when the center of gravity of the drawer door structure is in front of the support component 13, the rear end portion of the support arm 10 is lifted and the roller 22 comes into contact with the upper surface of the rail 8. That is, when pulling out the door 4a, if the center of gravity of the drawer door structure is in front of the support component 13, the roller 22 is subjected to a load that is pushed downward from above. As a result, a moment M is applied to the support arm 10 such that the lower side of the support arm 10 is twisted inward as indicated by an arrow in FIG. When the deformation of the support arm 10 is increased by such a moment M, there is a concern that the roller 22 may fall off from the rail 8.

  However, in the refrigerator 100 according to the first embodiment, when the support arm 10 is about to be deformed by the moment M, the inner end portion of the support arm 10 (the flange 14 when the flange 14 is provided) is the storage container 11. It abuts on the rib 12. Therefore, the present embodiment 100 can regulate the deformation of the support arm 10 and can prevent the roller 22 from falling off the rail 8.

As described above, in the refrigerator 100 according to the first embodiment, the rib 12 of the storage container 11 can restrict the deformation of the support arm 10 due to the moment M. For this reason, the refrigerator 100 which concerns on this Embodiment 1 can abolish the support arm for reinforcement provided in the conventional drawer door structure. Therefore, the refrigerator 100 according to the first embodiment has an increase in the volume of the storage container 11, a reduction in cost and assembly man-hours, and an increase in the factory as compared with a conventional refrigerator having a drawer door structure provided with a supporting arm for reinforcement. Effects such as securing space can be obtained.
Moreover, the refrigerator 100 which concerns on this Embodiment 1 does not have any components which should be provided in the bottom face part of a storage chamber like the control wall provided in the conventional drawer door structure. For this reason, the refrigerator 100 which concerns on this Embodiment 1 can employ | adopt a drawer door structure also to the storage room which could not employ | adopt the drawer door structure provided with the control wall.

  In the refrigerator 100 according to the first embodiment, the pair of support arms 10 have a flange 14 at an end portion on the side facing the rib 12. For this reason, when the support arm 10 is to be deformed by the moment M, the flange 14 and the end of the rib 12 come into line contact in a front view. For this reason, the refrigerator 100 which concerns on this Embodiment 1 can also suppress a deformation | transformation of a support arm with respect to the larger moment M compared with the case where the flange 14 is not provided.

  In the first embodiment, the roller 22 is used as a supported part provided outside the rear portion of the support arm 10. However, the roller 22 is an example of a supported component. For example, as shown in FIG. 6, for example, a columnar or prismatic slider 21 may be provided outside the rear portion of the rail 8. By providing the slider 21 so as to be slidable with respect to the rail 8, a supported component can be obtained. By using the slider 21 as the supported component, the cost of the drawer door structure, that is, the refrigerator 100 can be further reduced as compared with the case where the roller 22 is used as the supported component.

Embodiment 2. FIG.
The drawer door structure of the refrigerator 100 according to the present invention is not limited to the configuration of the first embodiment. For example, the drawer door structure may be configured as follows. Note that the configurations that are not particularly mentioned in the second embodiment are the same as those in the first embodiment. Further, in the second embodiment, the same reference numerals as those in the first embodiment are given to configurations that perform the same functions as those in the first embodiment. In the second embodiment, a drawer door structure using the slider 21 as a supported part will be described as an example.

FIG. 7 is an enlarged view of a main part showing a refrigerator according to Embodiment 2 of the present invention. FIG. 7 illustrates a position corresponding to the Q portion in FIG.
As shown in FIG. 7, the refrigerator 100 according to the second embodiment is different from the first embodiment in the mounting height of the slider 21. Specifically, in the refrigerator 100 according to the second embodiment, at least a part of the contact portion (flange 14) between the support arm 10 and the rib 12 and the slider 21 has the same height. It has become.

  When forming the support arm 10 by processing a thin plate into a shape having the L-shaped portions of the vertical plate portion 10a and the horizontal plate portion 10b, when the moment M is applied to the support arm 10, the vertical plate portion 10a includes: A force for bending outward acts around the joint between the vertical plate portion 10a and the horizontal plate portion 10b. For this reason, when the connection location of the slider 21 and the vertical plate portion 10a is too far from the bonded portion of the vertical plate portion 10a and the horizontal plate portion 10b, the bonded portion of the vertical plate portion 10a and the horizontal plate portion 10b. There is a concern that the support arm may be damaged.

  However, in the refrigerator 100 according to the second embodiment, at least a part of the contact portion (flange 14) between the support arm 10 and the rib 12 and the slider 21 have the same height. In other words, the connecting portion between the slider 21 and the vertical plate portion 10a has a configuration close to the joint portion between the vertical plate portion 10a and the horizontal plate portion 10b. For this reason, in the refrigerator 100 according to the second embodiment, when the moment M is applied to the support arm 10 as compared with the first embodiment, the support arm is at the joint between the vertical plate portion 10a and the horizontal plate portion 10b. It can suppress more that 10 is damaged. In particular, in the refrigerator 100 according to the second embodiment, the connection location between the slider 21 and the vertical plate portion 10 a is the same height as the contact location between the support arm 10 and the rib 12. In other words, the connection location between the slider 21 and the vertical plate portion 10a and the contact location between the support arm 10 and the rib 12 are located on a plane including the horizontal plate portion 10b. For this reason, even if the moment M is applied to the support arm 10, the vertical plate portion 10a is hardly subjected to a force for bending outward with the joint portion between the vertical plate portion 10a and the horizontal plate portion 10b as the center. For this reason, it can control that support arm 10 is damaged further.

  Of course, as shown in FIG. 8, a roller 22 may be used as a supported component. It is sufficient that at least a part of the contact portion (flange 14) between the support arm 10 and the rib 12 and the roller 22 have the same height. By comprising in this way, the effect similar to the above can be acquired.

Embodiment 3 FIG.
You may form the following inclined surface parts in the drawer door structure shown in Embodiment 1 and Embodiment 2. Note that configurations that are not particularly described in the third embodiment are the same as those in the first or second embodiment. In the third embodiment, the same reference numerals as those of these embodiments are assigned to the same functions as those of the first or second embodiment. In the third embodiment, an example in which the slider 21 is used as a supported part and an inclined surface portion is formed in the drawer door structure configured as in the second embodiment will be described.

FIG. 9 is an essential part enlarged view showing a refrigerator according to Embodiment 3 of the present invention. FIG. 9 illustrates a position corresponding to the Q portion in FIG.
The pair of rails 8 of the refrigerator 100 according to the third embodiment includes a convex portion 15 projecting upward along the front-rear direction at a position on the inner side of the slider 21 in the bottom surface portion of the rail 8. It is. These convex portions 15 have inclined surface portions 15 a that are inclined toward the slider 21 from the top to the bottom on the surface facing the slider 21. Each of the sliders 21 has an inclined surface portion 16 that faces the inclined surface portion 15 a of the convex portion 15.
Here, the inclined surface portion 15a corresponds to the first inclined surface portion of the present invention, and the inclined surface portion 16 corresponds to the second inclined surface portion of the present invention.

  By configuring the drawer door structure in this way, when the support arm 10 is to be deformed by the moment M, the inclined surface portion 16 of the slider 21 abuts on the inclined surface portion 15a of the rail 8, and the deformation of the support arm 10 is restricted. can do. For this reason, the refrigerator 100 according to the third embodiment can prevent the roller 22 from falling off the rail 8 even when the storage container 11 is not held by the support arm 10, and the movement of the door 4a is stabilized. .

  Further, by configuring the drawer door structure as in the third embodiment, the center of gravity of the drawer door structure moves rearward from the support component 13, and the slider 21 is in contact with the upper surface of the rail 8 from the rail. 8, the inclined surface portion 15 a of the rail 8 functions as a guide, and guides the slider 21 to the lower surface of the rail 8. For this reason, the movement of the stable door 4a is realizable.

  In addition, due to processing errors and assembly errors of parts, the dimension between the pair of sliders 21 may be smaller than the dimension between the pair of rails 8, and the drawer door structure may not be successfully installed in the switching chamber 4. However, when the drawer door structure is configured as in the third embodiment, the slider 21 is moved to the rail 8 by the load of the door 4a, the support arm 10, the storage container 11, and food stored in the storage container 11. It is guided to the lower surface of the rail 8 while being guided by the inclined surface portion 15a. For this reason, the drawer door structure can be attached to the switching chamber 4 even if the drawer door structure has not been successfully installed in the switching chamber 4 due to processing errors and assembly errors of parts.

  Of course, as shown in FIG. 10, a roller 22 may be used as the supported component. By forming the inclined surface portion 16 on the roller 22, the same effect as described above can be obtained.

  As described above, in the first to third embodiments, the example in which the drawer structure according to the present invention is installed in the switching chamber 4 has been described. However, it is of course possible to install the drawer structure according to the present invention in a storage room other than the switching room 4.

  1 housing, 2 refrigerator compartment, 2a door, 3 ice making room, 3a door, 4 switching room, 4a door, 5 freezer room, 5a door, 6 vegetable room, 6a door, 7 side wall part, 8 rail, 9 bottom part, DESCRIPTION OF SYMBOLS 10 Support arm, 10a Vertical plate part, 10b Horizontal plate part, 11 Storage container, 12 Rib, 13 Support components, 14 Flange, 15 Convex part, 15a Inclined surface part (1st inclined surface part), 16 Inclined surface part (2nd inclined surface part) ), 21 Slider (supported part), 22 Roller (supported part), 100 Refrigerator.

The refrigerator according to the present invention includes a housing in which a storage room having an opening on the front side is formed, a pair of rails provided in the front-rear direction on both side walls of the storage room, and an opening of the storage room. A pair of doors that can be freely opened and closed, a pair of support arms projecting rearward from the doors, and a pair of support arms that are provided outside the rear portions of the support arms and supported by the rails so as to be movable in the front-rear direction. A supported part, a pair of support parts provided in the storage chamber and supporting the pair of support arms in front of the supported part, and a storage container held by the pair of support arms, The storage container protrudes downward from the bottom surface of the storage container along the left-right direction, and comes into contact with the support arms when the pair of support arms are deformed inward, so that the support arms are deformed. It has a rib which prevents it from doing .

Claims (6)

A housing in which a storage chamber having an opening on the front side is formed;
A pair of rails provided in the front-rear direction on both side walls of the storage room;
A door that opens and closes the opening of the storage chamber; and
A pair of support arms protruding rearward from the door;
A pair of supported parts provided on the outside of the rear part of each of the support arms and supported by the rail so as to be movable in the front-rear direction;
A pair of support parts provided in the storage chamber and supporting the pair of support arms in front of the supported parts;
A storage container held by a pair of the support arms;
With
The refrigerator is provided with a rib that protrudes downward from the bottom surface of the storage container along the left-right direction and has ribs that contact the pair of support arms.   The refrigerator according to claim 1, wherein at least a part of the contact portion between the support arm and the rib and the supported component have the same height. The pair of rails includes a convex portion projecting upward along the front-rear direction at a position on the inner side of the supported component in the bottom surface portion of the rail,
The convex portion has a first inclined surface portion that is inclined to the supported component side from an upper portion to a lower portion on a surface facing the supported component,
Each of the said supported components is a refrigerator of Claim 1 or Claim 2 which has a 2nd inclined surface part facing the said 1st inclined surface part of the said convex part. The pair of support arms has a flange on the side facing the rib,
The refrigerator according to any one of claims 1 to 3, wherein the flange and the rib are in line contact in a front view.   The refrigerator according to any one of claims 1 to 4, wherein the supported component is a slider slidably supported on the rail.   The refrigerator according to any one of claims 1 to 4, wherein the supported component is a roller rotatably provided on the support arm.

Images