JP3850337B2 - Door device and refrigerator using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door device in which two door bodies open and close an opening, and a refrigerator using the same.
[0002]
[Prior art]
A door device having two doors that can be opened and closed on the left and right is used for a refrigerator, for example. In this door device, one side part of two door bodies is pivotally supported on both sides of the opening part, and the other side part of the two door bodies is in contact with each other on the center side of the opening part, thereby making the opening part 2 One door body is configured to be sealed.
[0003]
[Problems to be solved by the invention]
However, in the conventional door device having a left and right open / close kannon type door body, when the two door bodies close the opening, the other side portions of the two door bodies contact each other on the center side of the opening. Since the clearance between the door bodies is eliminated and the sealing performance is improved, the contact resistance between the other side portions of the two door bodies is increased in the state where the opening is closed. As a result, the operating force required to open / close one of the doors is increased, the door opening / closing operability is deteriorated, and the sealing material provided on the other side of the door is damaged. As a result, the improvement measures were requested.
[0004]
FIG. 8 is a cross-sectional view in which a part of the configuration of the support portion of the door body in the door device previously proposed by the applicant of the present invention is omitted, and FIG. 9 is the door device previously proposed by the applicant of the present invention. It is a schematic diagram which shows the relationship between the upper support part of a door body, a lower support part, and the gravity center load added to a door body.
Therefore, the applicant of the present invention has the upper and lower portions of one side of the two door bodies 4 and 5, the fixed shafts 41 and 51 whose longitudinal direction is vertical, and the fixed shafts 41 and 51 are the door body 4. , 5 through the sliding guide recesses 42 and 52 that are inserted so as to be capable of relative sliding from the other side to the one side, so that one of the door bodies 4 or 5 is supported. At the beginning of opening, the door body 4 or 5 slides away from the other side of the other door body 5 or 4, in other words, slides so as to generate a gap between the two door bodies 4 and 5. And the door apparatus which enabled it to open and rotate one door body 4 or 5 in this sliding state was proposed previously.
[0005]
However, in this door device, in order to improve the sealing performance between the door bodies 4 and 5 with the two door bodies 4 and 5 closed, the door bodies 4 and 5 are separated from the one side portion. Since an urging spring for urging toward the other side portion is provided, it is desired to further increase the effect of reducing the operating force required when opening or closing one of the door bodies 4 and 5.
[0006]
The present invention has been made in view of such circumstances, and the main object is that one of the upper support portion and the lower support portion of the two door bodies has a sliding means, and the other of the upper support portion and the lower support portion is By adopting the configuration having the sliding prohibiting means, the operation force required for opening and closing the door body can be made relatively small, and the door body in a state where the two door bodies close the opening. It is providing the door device and refrigerator which can improve the sealing performance between.
[0007]
Another object of the present invention is to provide a door device capable of simplifying the structure of the sliding means by using a sliding means having a convex portion and a sliding guide concave portion into which the convex portion is inserted so as to allow relative sliding. To provide a refrigerator.
[0008]
Another object of the present invention is to provide a door device and a refrigerator capable of simplifying the structure of the sliding prohibiting means by using a sliding prohibiting means having a convex portion and a sliding prohibiting concave portion into which the convex portion is inserted. It is in.
[0009]
Another object is to insert two convex portions that are separated in the direction in which the two door bodies slide, and one of the two convex portions is inserted so that relative sliding is possible, and its longitudinal direction is the sliding direction. A sliding means having a first concave portion and a second concave portion in which the other of the two convex portions is inserted so as to be capable of relative sliding and whose longitudinal direction is the rotational direction of the door body. An object of the present invention is to provide a door device and a refrigerator capable of rotating the door body while suppressing backlash in the sliding direction of the door body.
[0010]
Another object is that the upper support part has a sliding means and the lower support part has a sliding prohibition means so that the upper support part and the lower support part are biased to the other side of the door body. An object of the present invention is to provide a door device and a refrigerator capable of prohibiting sliding of the door body due to the center of gravity load even when the center of gravity load of the door body applied to the position is relatively large.
[0011]
[Means for Solving the Problems]
The door device according to the present invention is provided with two door bodies at the opening, and the two door bodies are located between the door body and the opening at one side of the door body at the upper and lower portions on both the left and right sides of the opening. In the door device in which the other side portions of the door body are in contact with each other on the center side of the opening, the upper support is provided for the two door bodies. Department has a sliding means for the two door body from the other side portion to be slidable toward the one side portion, the lower support portion has a sliding inhibiting means for inhibiting the sliding of the two door body It is characterized by that.
[0012]
In the present invention, the sliding means of the upper support portions of the two door bodies allows the opening operation to be performed while generating a gap between the one door body and the other door body at the beginning of opening. The operating force required when opening and closing one of the door bodies can be made relatively small. And the sealing performance between the door bodies in the state which the two door bodies closed the opening part by the sliding prohibition means which the lower support part of the two door bodies has can be improved. Further, even when the center of gravity load of the door body applied to the position biased to the other side of the door body with respect to the upper support portion and the lower support portion is relatively large, sliding of the door body due to the center of gravity load may be prohibited. And the closed state of the opening by the door body can be maintained .
[0013]
Further, the door device according to the present invention is characterized in that the sliding means has a convex portion and a sliding guide concave portion into which the convex portion is inserted so that relative sliding is possible.
In this invention, the sliding means can be configured by providing a convex portion on one of the opening side and the door body and providing a sliding guide concave portion on the other side of the opening side and the door body. The structure of the sliding means is simple.
[0014]
Further, the door device according to the present invention is characterized in that the sliding prohibiting means has a convex portion and a sliding prohibiting concave portion into which the convex portion is inserted.
In this invention, it is possible to constitute a sliding prohibiting means by providing a convex portion on one of the opening side and the door body, and providing a sliding prohibiting concave portion on the other side of the opening side and the door body. The structure of this sliding prohibiting means is simple.
[0015]
Further, in the door device according to the present invention, the sliding means is inserted in such a manner that two convex portions that are separated in the direction in which the two door bodies slide, and one of the two convex portions is capable of relative sliding, A first concave portion whose longitudinal direction is the sliding direction, and a second concave portion in which the other of the two convex portions is inserted so that relative sliding is possible, and the longitudinal direction is the rotational direction of the door body; It is characterized by having.
[0016]
In the present invention, the door can be rotated while sliding with the first concave portion and the convex portion inserted into the first concave portion as a pivot, and the second concave portion and the convex portion inserted into the first concave portion. The convex portion inserted into the second concave portion can turn the door body while suppressing the backlash of the door body in the sliding direction, thereby further improving the opening / closing operability of the door body.
[0018]
Moreover, the refrigerator which concerns on this invention is equipped with the storage chamber which has the said opening part, the refrigerator main body which has this storage chamber, and the door apparatus of the above-mentioned invention arrange | positioned at the said opening part.
[0019]
According to the present invention, the sliding means can be opened and opened while generating a gap with the other door body at the beginning of opening of the one door body. The operation force required for the door can be made relatively small, and the sliding prohibiting means can improve the sealing performance between the doors when the two doors are closed. Even when the object to be refrigerated is placed inside the body, the closed state of the opening by the door body can be maintained.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.
Embodiment 1
FIG. 1 is a perspective view showing a configuration of a refrigerator using the door device according to the present invention, and FIG. 2 is a perspective view of a state in which the door of the refrigerator is opened.
[0021]
The refrigerator 1 shown in FIGS. 1 and 2 has an upper storage chamber 11b in which refrigerated items are stored from the front opening 11a, and two lower storage chambers in which refrigerated items are stored from the front openings 11c and 11d. 11e, 11f and the refrigeration required refrigerator main body 11 having one intermediate storage chamber 11h in which the front storage opening 11g is stored, the door device A disposed in the opening 11a of the upper storage chamber 11b, Two lower door bodies 12 and 13 for opening and closing the openings 11c and 11d of the lower storage chambers 11e and 11f, and an intermediate door body 14 for opening and closing the opening 11g of the intermediate storage chamber 11h are provided.
[0022]
3 is a cross-sectional view in which a part of the configuration of the upper support portion of the door body in the door device is omitted, and FIG. 4 is a cross-sectional view in which a portion of the configuration of the lower support portion of the door body in the door device is omitted. FIG. 5 is an explanatory view showing a process of opening the door body on the side having the sliding means of the door device, and FIG. 6 is an explanatory view showing a process of opening the door body on the side of the door device having the sliding prohibiting means.
The door device A is supported by the upper and lower portions on both sides of the opening portion 11a so that one side portions 2a and 3a thereof are rotatably supported via the upper support portions 21 and 31 and the lower support portions 22 and 32. There are provided two door bodies 2 and 3 of a left and right sight opening and closing type that are sealed when the other side portions 2b and 3b come into contact with each other on the center side of the opening portion 11a.
[0023]
The upper support portions 21 and 31 of the door bodies 2 and 3 have sliding means that allow the door bodies 2 and 3 to slide from the other side portions 2b and 3b toward the one side portions 2a and 3a. The support portions 22 and 32 have sliding prohibiting means for prohibiting sliding of the door bodies 2 and 3.
[0024]
The sliding means has two convex portions 21a, 21b, 31a, 31b projecting so that the longitudinal direction thereof is up and down at positions separated in the sliding direction (left-right direction) of the door bodies 2, 3. First concave portions 21c and 31c (sliding guide concave portions) in which the convex portions 21a and 31a on the side close to the one side portions 2a and 3a are inserted so as to be capable of relative sliding, and the longitudinal direction thereof is the sliding direction. The first side portions 2a and 3a and the far side convex portions 21b and 31b are inserted so as to be capable of relative sliding, and the second concave portions 21d and 31d whose longitudinal direction is the rotational direction of the door bodies 2 and 3 are inserted. (Sliding guide recess).
[0025]
The first recesses 21c and 31c are oval, and when the door bodies 2 and 3 are closed, the first recesses 21c and 31c are moved to the first position (the position in FIG. 5a) on the side away from the second recesses 21d and 31d. When the convex portions 21a and 31a are located and the door bodies 2 and 3 are open, the convex portions 21a and 31a are located at a second position (position in FIG. 5c) closer to the second concave portions 21d and 31d. It is like that.
The second recesses 21d and 31d are curved along a trajectory in which the door bodies 2 and 3 rotate around the projections 21a and 31a inserted in the first recesses 21c and 31c, and one end in the longitudinal direction thereof is formed. The cams serve as the entrances and exits of the projections 21b and 31b. When the door bodies 2 and 3 are closed, the projections 21b and 31b are located at the end opposite to the entrance (position of FIG. 5a). It is.
The first and second recesses 21c, 31c, 21d, and 31d are provided on the upper surfaces of the door bodies 2 and 3, and the protrusions 21a, 21b, 31a, and 31b are provided on the refrigerator main body 11 on the opening 11a side. Is provided. The first and second recesses 21c, 31c, 21d, 31d may be provided on the refrigerator body 11 on the opening 11a side, and the protrusions 21a, 21b, 31a, 31b may be provided on the upper surfaces of the door bodies 2, 3. Good.
[0026]
The sliding prohibiting means includes convex portions 22a and 32a provided at a rotation center position where the door bodies 2 and 3 rotate in a state where the other side portions 2b and 3b of the door bodies 2 and 3 are in contact with each other, and the convex portions 22a and 32a are inserted into the cylindrical anti-sliding recesses 22b and 32b, and the protrusions 22a and 32a inserted into the anti-sliding recesses 22b and 32b without sliding the door bodies 2 and 3 are provided. The door bodies 2 and 3 are rotated as a center.
Further, the sliding prohibiting concave portions 22b and 32b are provided on the lower surfaces of the door bodies 2 and 3, and the convex portions 22a and 32a are provided on the refrigerator main body 11 on the opening 11a side. In addition, you may provide the sliding prohibition recessed parts 22b and 32b in the refrigerator main body 11 by the side of the said opening part 11a, and the convex parts 22a and 32a may be provided in the lower surface of the door bodies 2 and 3. FIG.
[0027]
In the door device A configured as described above, when the door bodies 2 and 3 close the opening 11a, the first recess 21c is in a state where the other side portions 2b and 3b of the door bodies 2 and 3 are in contact with each other. , 31c are located at the first position (the position in FIG. 5a), and the convex portions 21b, 31b are located at the end opposite to the entrance / exit of the second recesses 21d, 31d (FIG. 5a). Position of). In this state, when opening one door body 2 or 3, for example, the left door body 2, at the beginning of opening of the door body 2, the convex portion 21a is moved from the first position of the first concave portion 21c (the position in FIG. 5a). Relative sliding to the second position (the position of FIG. 5c), and the convex portion 21b slides relative to the inlet / outlet side from the end opposite to the inlet / outlet of the second concave portion 21d. While rotating from 2b toward the one side 2a, it rotates around the convex portion 21a of the upper support portion 21 and the convex portion 22a of the lower support portion 22.
[0028]
By sliding on the upper support portion 21 of the door body 2, the entire door body 2 is slightly tilted about the convex portion 22 a of the lower support portion 22, and the other lower end portion of the door body 2 is the right side door body 3. Point contact with the lower end of the other side. As a result, since the door body 2 can be opened with the contact resistance between the door bodies 2 and 3 greatly reduced, the operating force required for opening and closing the door body 2 is made relatively small. Can do.
[0029]
Further, at the beginning of opening of the door body 2, the convex portion 21b slides relative to the entrance / exit side from the end opposite to the entrance / exit of the second recess 21d, and from the other side portion 2b of the door body 2 toward the one side portion 2a. The door body 2 is rotated while suppressing sliding. As a result, the door body 2 can be rotated while suppressing the backlash of the door body 2 in the sliding direction, and the opening / closing operability of the door body 2 can be further improved.
[0030]
FIG. 7 is a schematic diagram showing the relationship between the upper and lower support portions of the door body and the center of gravity load applied to the door body in the door device.
Moreover, in the lower support portions 22 and 32 of the door bodies 2 and 3, the sliding of the door bodies 2 and 3 is prohibited by the sliding prohibiting means, so that the upper support portions 21 and 31 and the lower support portions 22 and 32 are not moved. In other words, even if the load on the center of gravity of the door bodies 2 and 3 applied to the positions biased to the other side portions 2b and 3b of the door bodies 2 and 3 is relatively large, in other words, the door bodies 2 and 3 are provided on the inner surfaces of the door bodies 2 and 3. Even when the center of gravity load of the door bodies 2 and 3 is relatively large by storing the refrigeration required in the storage section, the sliding of the door bodies 2 and 3 due to the center of gravity load can be eliminated. The sealing performance between the door bodies 2 and 3 with the door bodies 2 and 3 closing the opening 11a can be improved. For this reason, it is not necessary to use an urging spring that opposes the center of gravity load as in the prior art, and it is possible to eliminate deterioration in operability due to the urging spring.
[0033]
In the above-described embodiment, the sliding means includes two convex portions 21a, 21b, 31a, 31b and a sliding guide concave portion including the first and second concave portions 21c, 21d, 31c, 31d. In addition, the convex portions 21b and 31b and the second concave portions 21d and 31d are eliminated, and the sliding guide concave portions including the convex portions 21a and 31a and the first concave portions 21c and 31c are provided. It is good also as a structure provided with.
Further, the door device A according to the present invention may be used for opening and closing an opening such as a window in addition to being used for a refrigerator.
[0034]
【The invention's effect】
As described above in detail, according to the present invention, the upper support portion of the two door bodies has the sliding means, and the lower support portion has the sliding prohibition means, so that one door body starts to open and the other The opening operation can be performed while generating a gap between the door body and the operation force required for opening / closing one of the door bodies can be made relatively small. Moreover, the sealability between the door bodies in the state where the two door bodies close the opening can be enhanced by the sliding prohibiting means. Moreover, since the upper support part has a sliding means and the lower support part has a sliding prohibition means, the center of gravity of the door body added to the position biased to the other side of the door body with respect to the upper support part and the lower support part Even when the load is relatively large, sliding of the door body due to the center of gravity load can be prohibited, and the closed state of the opening by the door body can be maintained .
[0035]
Further, according to the present invention, since the sliding means has the convex portion and the sliding guide concave portion into which the convex portion is inserted so as to be capable of relative sliding, the structure of the sliding means is simple.
[0036]
Further, according to the present invention, since the sliding prohibiting means has the convex part and the sliding prohibiting concave part into which the convex part is inserted, the structure of the sliding prohibiting means is simple.
[0037]
Further, according to the present invention, the sliding means is inserted so that the two convex portions that are separated in the direction in which the two door bodies slide, and one of the convex portions can be relatively slid, and the longitudinal direction thereof is Since the other one of the two convex portions is inserted so that relative sliding is possible, and the longitudinal direction thereof is the second concave portion that becomes the rotational direction of the door body, The door body can be rotated while suppressing backlash in the sliding direction of the door body, and the opening / closing operability of the door body can be further improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a configuration of a refrigerator using a door device according to the present invention.
FIG. 2 is a perspective view showing a state in which a refrigerator door using the door device according to the present invention is opened.
FIG. 3 is a cross-sectional view in which a part of the configuration of the upper support portion of the door body in the door device according to the present invention is omitted.
FIG. 4 is a cross-sectional view in which a part of the configuration of the lower support portion of the door body in the door device according to the present invention is omitted.
FIG. 5 is an explanatory view showing a process of opening the door body on the side having the sliding means of the door device according to the present invention.
FIG. 6 is an explanatory view showing a process of opening the door body on the side having the sliding prohibiting means of the door device according to the present invention.
FIG. 7 is a schematic diagram showing the relationship between the upper and lower support portions of the door body and the center of gravity load applied to the door body in the door device according to the present invention.
FIG. 8 is a cross-sectional view in which a part of the configuration of the support portion of the door body in the door device previously proposed by the applicant of the present invention is omitted.
FIG. 9 is a schematic diagram showing the relationship between the upper and lower support portions of the door body and the center of gravity load applied to the door body in the door device previously proposed by the applicant of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Refrigerator 11 Refrigerator main body 11a Opening part 2, 3 Door body 2a, 3a One side part 2b, 3b Other side part 21, 31 Upper support part 21a, 21b, 31a, 31b Convex part (sliding means)
21c, 31c 1st recessed part (sliding guide recessed part, sliding means)
21d, 31d Second recess (sliding guide recess, sliding means)
22, 32 Lower support portions 22a, 32a Convex portions (sliding prohibiting means)
22b, 32b Recess (sliding prohibition recess, sliding prohibition means)

Claims (5)

Two doors are provided in the opening, and the two doors are provided on the upper and lower sides on both the left and right sides of the opening on the one side of the door between the door and the opening. In the door device in which the other side portions of the door body are in contact with each other on the center side of the opening, the upper support portions of the two door bodies are provided with the two door bodies. A door device characterized in that it has sliding means that can slide from the other side portion toward one side portion, and the lower support portion has sliding prohibiting means that prohibits sliding of two door bodies.   The door device according to claim 1, wherein the sliding means includes a convex portion and a sliding guide concave portion into which the convex portion is inserted so as to be capable of relative sliding. The door device according to claim 1, wherein the sliding prohibiting means includes a convex portion and a sliding prohibiting concave portion into which the convex portion is inserted .   In the sliding means, two convex portions that are separated in the direction in which the two door bodies slide, and one of the two convex portions are inserted so that relative sliding is possible, and the longitudinal direction thereof is the sliding direction. The door device according to claim 1, further comprising: a first concave portion and a second concave portion in which the other of the two convex portions is inserted so as to be capable of relative sliding, and a longitudinal direction thereof is a rotation direction of the door body. The refrigerator provided with the storage chamber which has the said opening part, the refrigerator main body which has this storage room, and the door apparatus as described in any one of Claims 1-4 arrange | positioned at the said opening part.

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