JP2007120800A - Door device for refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door device openable by little force without inhibiting design and usability of an interior in a double hinged door having a partition. <P>SOLUTION: In a double hinged door having a partition, a tall first guide pin 34 is provided in a side far from a hinge 25 corresponding to a left refrigerating chamber door 24 attached with the partition 31, a short second guide pin 35 is provided in a side near the hinge, and in the partition 37, a short first cam 37 corresponding to the first guide pin is provided in a side positioned in an interior side in a door closed state, and a tall second cam 38 is provided in a side positioned in an exterior side. By this, the door device openable by little force can be provided without inhibiting design and usability of the interior. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a refrigerator door device.

  2. Description of the Related Art In recent years, door devices for household refrigerators have been provided that employ a so-called kannon type door device in which two revolving doors are provided in front of the opening of a refrigerator compartment disposed at the top of the refrigerator.

  2. Description of the Related Art Conventionally, in a kannon type door device, a guide pin and a cam mechanism provided on the upper and lower end surfaces of a storage chamber have been proposed, as described in Japanese Patent Application Laid-Open No. H10-228707.

  6 to 8 show a conventional refrigerator described in Patent Document 1. FIG. FIG. 6 is a perspective view showing a door open state of a conventional refrigerator. FIG. 7 is a plan view showing a door closed state and a door open state of a conventional refrigerator. FIG. 8A is a detailed view of the upper partition body in the closed state of the conventional refrigerator compartment door, and FIG. 8B is a detailed view of the lower partition body in the closed state of the conventional refrigerator compartment door.

  As shown in FIG. 6, the refrigerator compartment 2 is arrange | positioned at the upper part of the refrigerator main body 1, and the refrigerator compartment right door 3 and the refrigerator compartment left door 4 which obstruct | occlude a front edge opening part are provided in the refrigerator compartment 2 front surface. The refrigeration room right door 3 and the refrigeration room left door 4 are supported by hinges 5 and 6 attached to the refrigerator main body 1 and rotate around the hinges 5 and 6 to open and close. Moreover, the refrigerator door right door 3 and refrigerator door left door 4 are provided with gaskets 7 and 8 to prevent cold air from leaking from the refrigerator compartment when the refrigerator door right door 3 and refrigerator door left door 4 are closed. Yes.

  As shown in FIG. 7, the partition 9 is installed in the refrigerator compartment left door 4 by the hinge 11 attached to the door inner board 10, and the partition 9 itself can rotate freely.

  The first guide pin 12 is disposed at the upper portion of the refrigerator compartment 2, the second guide pin 13 is disposed at the lower portion of the refrigerator compartment 2, the first cam 14 is disposed at the upper portion of the partition body 9, and the second cam 15 is partitioned. Located at the bottom of the body 9. As shown in FIG. 7, when the refrigerator door left door 4 is opened, the partition 9 is rotationally displaced to the folding position by the action of the first pin 12 and the first cam 14. Further, when the refrigerator compartment left door 4 is closed, the second pin 13 and the second cam 15 are rotated and displaced to the protruding position.

Moreover, in order to rotate the partition 9 with little force, the 1st guide pin 12 is arrange | positioned on the right side rather than the center side end surface position of the refrigerator compartment right door 3. FIG. The second guide pin 13 is provided separately from the first guide pin 12 at the lower part of the refrigerator compartment when the first guide pin 12 and the second guide pin 13 are provided at the same end. This is to prevent the second guide pin from coming into contact with the first cam when the left door 4 is opened. Moreover, it is for rotating the partition 9 from a retracted position to a protrusion position at the time of closing operation of the refrigerator compartment left door 4.
Japanese Patent Laid-Open No. 7-234068

  However, in the above conventional configuration, it is necessary to provide guide pins on both the upper and lower sides of the refrigerator compartment in order to add an operation with different trajectories between the opening operation and the closing operation of the refrigerator compartment door. In addition to being a hindrance when taking out the items stored in the refrigerator compartment, there is a problem that the design is also impaired. In addition, when the number of guide pins is one, it is necessary to turn the partition body from the retracted position to the protruding position during the closing operation of the left refrigerator compartment door, so it is necessary to arrange the guide pins on the left side of the center edge of the right door. is there. This has a problem that a guide pin is disposed in the vicinity of the rotation axis of the partition and a large force is required to rotate the partition. The present invention solves the above-mentioned conventional problems, and by combining the guide pins on one of the upper and lower sides of the refrigerator compartment, the door can be opened with less force without impairing the usability and design of the refrigerator compartment. The door device of the refrigerator which can be provided can be provided.

  In order to solve the above-described conventional problems, one or more guide pins having different heights are provided on either one of the upper and lower sides of the opening of the storage chamber, and a cam shape having a different height is provided on one end face of the corresponding partition body. It is a thing.

  This makes it possible to change the operation of the partition when the door is opened and the operation of the partition when the door is closed even if the guide pins are combined on one of the upper and lower sides of the refrigerator compartment, which impairs usability and design. It is possible to provide a door device for a refrigerator that can open the door with less force.

  The present invention provides a door device for a refrigerator that can open a door with a small force without impairing usability and design in the refrigerator compartment by collecting guide pins on one of the upper and lower sides of the refrigerator compartment. it can.

  In addition, since the degree of freedom increases in the shape of the guide pin, the impact noise during the closing operation of the left refrigerator compartment door can be reduced and the cold air leakage in the refrigerator compartment can be reduced.

  According to the first aspect of the present invention, the left and right refrigerator compartment doors arranged rotatably, the magnet gasket arranged on the inner edge of the refrigerator compartment door on the refrigerator compartment side, and the other door arranged on one of the doors. A partition that forms a magnet gasket receiving surface, a cam provided at one end of the partition, and a guide pin disposed in front of the upper part of the refrigerator compartment, the guide pin having a height difference in the height direction. By providing one or a plurality of ones and providing a cam shape having a different height on one side end face of the corresponding partition, different operations can be added between the door opening operation and the closing operation.

  According to a second aspect of the present invention, in the first aspect of the present invention, the first guide pin that is tall on the side far from the hinge of the door to which the partition is attached and the second guide that is short on the side close to the hinge. A pin is provided, and the partition is provided with a short first cam corresponding to the first guide pin on the side located inside the compartment with the door closed, and a tall second cam on the side located outside the compartment. As a result, when the left door is opened, the partition is rotated by the action of the first guide pin and the first cam of the partition. When the door is opened, the first cam is not affected by the second guide pin, so that the door opening operation does not become heavy.

  According to a third aspect of the present invention, in the second aspect of the present invention, when the door is closed by forming the side of the second guide pin that is desired in the outward direction of the chamber so as to be an arcuate surface having a large curvature radius. The sound that the second cam and the second pin collide can be reduced.

  According to a fourth aspect of the present invention, in the second or third aspect of the invention, the second guide pin provided on the arcuate surface is extended to the base end surface of the guide pin, thereby suppressing the leakage of cold air in the refrigerator compartment. be able to.

  The invention according to claim 5 is the invention according to claim 1 or 2, wherein the packing mounting surface of the door opposite to the door to which the cam mechanism is attached is inclined to provide a partition mounting side. When the door is opened, the partition member does not come into contact with the other door.

  The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the door can be opened lightly by providing the cam mechanism in the vicinity of the handle.

  The invention according to claim 7 is the invention according to any one of claims 1 to 5, wherein the load acting on the opener can be reduced by providing the cam mechanism in the vicinity of the mechanical opener.

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

(Embodiment 1)
Embodiment 1 of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view showing a door open state of the refrigerator in Embodiment 1 of the present invention, FIG. 2 is a plan sectional view of the left refrigerator compartment door in Embodiment 1 of the present invention closed and opened, and FIG. FIG. 4 is a plan detailed sectional view of the first embodiment of the present invention with the left and right refrigerator compartment doors closed, and FIG. 4 is an upper perspective view showing the refrigerator door device with the left and right refrigerator compartment doors closed according to the first embodiment of the present invention. FIG. 5 and FIG. 5 are plan cross-sectional views of the left refrigeration room door opening operation start state according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the refrigerator compartment 2 is arrange | positioned at the upper part of the refrigerator main body 21. As shown in FIG. The front side of the refrigerator compartment 2 is provided with a right refrigerator compartment door 3 and a left refrigerator compartment door 24 having a short shape for opening and closing the front opening of the refrigerator compartment 22. The right refrigerator compartment door 23 and the left refrigerator compartment door 24 are so-called double doors that open and close from the center side to the left and right by being pivotally supported by hinges 25 respectively.

  As shown in FIGS. 2 and 3, the right refrigerator compartment door 23 and the left refrigerator compartment door 24 include an inner box 26, an outer plate 72, an upper lid (not shown), a lower lid (not shown) and the same. It is comprised from the urethane 28 for heat insulation integral foaming. Groove shapes 29 are provided on the outer peripheries of the right refrigerator compartment door 23 and the left refrigerator compartment door 24, and a magnet gasket 30 for securing confidentiality at the time of closing is fitted and arranged in a frame shape. In order to receive the part located in the central side of each door of the magnet gasket 30 and to open the entire opening of the refrigerator compartment when both doors are opened, the left refrigerator compartment door 24 has a partition. 31 is provided.

  The partition 31 has a vertically elongated column shape with a rectangular cross section, and is provided along the back surface on the right side of the left refrigerator compartment door 24. In this case, the partition 31 is attached to a support member 32 provided in the left refrigerator compartment door 24 so as to be rotatable in the horizontal direction around the rotation fulcrum 33. Thus, the partition 31 protrudes to the right side of the left refrigerator compartment 24 as shown by a solid line and is positioned between the doors, and the left refrigerator compartment door 24 as shown by a two-dot chain line in the figure. It is possible to rotate and displace between the side portion and the retracted position in which the side portion is folded rearward. When the left refrigerator compartment door 24 is closed, the partition 31 is in a protruding position so as to receive the magnet gasket 30. When the left refrigerator compartment door 24 is opened, the partition 31 is in a retracted position. It has come to be. Hereinafter, a structure for rotating the partition 31 between the protruding position and the retracted position will be described.

  A short plate-shaped upper rail member 36 having a first guide pin 34 and a second guide pin 35 projecting downward is provided at a predetermined position of the upper edge of the opening of the refrigerator compartment 22. Compared with the second guide pin 35, the first guide pin 34 is disposed so that the position from the hinge 25 with respect to the left refrigerator compartment door 24 to which the partition 31 is attached is farther. Further, the first guide pin 34 is set taller than the second guide pin 35. The second guide pin 35 is provided so as to protrude to the left side of the right refrigerator compartment door 23 in order to rotate the partition 31 to the protruding position.

  An upper partition cover 39 having a first cam 37 and a second cam shape 38 on which the first guide pin 34 and the second guide pin 35 slide relative to each other is provided at the upper end portion of the partition plate 31. The first cam 37 is disposed so as to be positioned in the inside of the refrigerator compartment when the left refrigerator compartment door 24 is closed, and the second cam 38 is disposed in the outward direction of the refrigerator compartment. The first cam 37 is set lower than the second cam 38.

  The operation | movement and effect | action are demonstrated below about the door apparatus of the refrigerator comprised as mentioned above.

  In the state where both the left refrigerator compartment door 24 and the right refrigerator compartment door 23 are closed, the partition 31 is held at the protruding position. Even in the state where only the right refrigerator compartment door 23 is opened, the partition 31 is held at the protruding position. When the left refrigerator compartment door 24 is opened in these states, the first guide pin 34 slides relative to the first cam 37, thereby pressing the first cam 37 against the first guide pin 34. Thus, the partition 31 is pivotally displaced to the retracted position so as to be pivoted counterclockwise about the rotation fulcrum 33 and folded. At this time, since the first cam 37 has a low profile, it does not interfere with the second guide pin 35 in the height direction. This is because the second guide pin 35 protrudes to the left from the right refrigerator compartment door 23, so that if the first cam 37 and the second guide pin 35 interfere with each other, the guide pin is the rotation fulcrum of the partition. This is to prevent a large force from being required to rotate the partition 31.

  On the other hand, when the left refrigerator compartment door 24 is closed from the opened state, the second cam 38 in the retracted position first enters the second guide pin 35. Then, when the second guide pin 35 slides relative to the second cam 38, the second cam 38 is pressed by the second guide pin 35, and the partition body 31 rotates clockwise from the retracted position. Thus, it is pivotally displaced to the protruding position.

  The second guide pin 35 has a horizontally long shape from the left refrigerator compartment door 24 to the right refrigerator compartment door 23 when the doors on both sides are closed. This is because the partition 31 is arranged on the center side of the right refrigerator compartment door 23 by advancing the closing rotation timing when the partition 31 pivots from the retracted position to the protruding position when the left refrigerator compartment door 24 is closed. The sound of hitting the magnet gasket 30 can be reduced. Further, the side of the second guide pin 38 that is desired in the outward direction is formed to be an arcuate surface having a large curvature radius. Thereby, the collision sound at the time of closing of the left refrigerator compartment door 24 can be made smaller. Further, the left refrigerating chamber door 24 side of the second guide pin 35 extends from the rotating shaft of the partition 31. Thereby, when both the right refrigerator compartment door 23 and the left refrigerator compartment door 24 are closed, the second guide pin 35 and the second cam 38 overlap as shown in FIG. It is possible to extend the path of cool air that escapes from the gap between the rail member 36 and the second cam 38 disposed in the portion, and it is difficult for the front wall of the second cam 38 to be affected by heat. For this reason, it is possible to prevent the front wall 39 from being dewed as much as possible.

  On the other hand, the inner plate 26 and the outer plate 27 at the center side of the left and right refrigerator compartment doors are provided with inclined portions 40. As shown in FIG. 5, when the partition 31 is rotated to the retracted position by the action of the first guide pin 34 and the first cam 37 when the left refrigerator compartment door 24 is opened, the first guide pin 34 is moved. In order to reduce the force to open the door, it is moved as close as possible to the right refrigerator compartment side, so that the retracting operation of the partition 31 is prevented from coming into contact with the right refrigerator compartment door 23 after the opening operation of the door. Play a role.

  The present invention is not limited to the above embodiment, and can be modified and expanded as follows.

  In the above embodiment, the first guide pin 34 and the second guide pin 35 are disposed at predetermined positions on the upper edge of the refrigerator opening, and the first cam 37 and the second cam 38 are located above the partition 31 of the left refrigerator door 24. However, the first guide pin 34 and the second guide pin 35 are set at predetermined positions on the lower edge of the opening of the refrigerator, and the first cam 37 and the second cam 38 are the partition body 31 of the left refrigerator door 24. You may arrange | position in the lower part. Further, the door provided with the partition 31 may be the right refrigerator compartment door 23.

  In addition, the door device of the refrigerator of this structure is arrange | positioned in the upper part or lower part of the center of a Kannon type door, and the handle | steering-wheel of both doors is arrange | positioned in the vicinity of the door device. Thus, the door is prevented from being twisted by the force of opening the door applied to the handle, so that the force of opening the door can be reduced.

  By placing a mechanical opener in the vicinity of the door device, it is possible to reduce the load applied to the opener device, and the door is opened at a low voltage, leading to cost reduction.

  As described above, the door device of the refrigerator according to the present invention provides a door device that can be opened with a small force without impeding the usability and design of the room in the door of the Kannon type having a partition. It becomes possible, and can be applied not only to refrigerators but also to various devices having double doors.

The perspective view which shows the door open state of the refrigerator in Embodiment 1 of this invention. Plan sectional drawing of the state which closed and opened the left refrigerator compartment door in Embodiment 1 of this invention Plane detailed sectional drawing of the state which closed the right-and-left refrigerator compartment door in Embodiment 1 of this invention The upper perspective view which shows the door apparatus of the refrigerator of the state which closed the right-and-left refrigerator compartment door in Embodiment 1 of this invention. Plan sectional drawing of the open operation start state of the left refrigerator compartment door in Embodiment 1 of this invention The perspective view which shows the door open state of the conventional refrigerator The top view which shows the door closed state and door open state of the conventional refrigerator (A) Detailed view of the upper partition body in the closed state of the conventional cold room door (b) Detailed view of the lower partition body in the closed state of the conventional cold room door

Explanation of symbols

24 Left refrigerator door 25 Hinge 30 Magnet gasket 31 Partition 33 Rotating fulcrum (Rotating shaft)
34 1st guide pin 35 2nd guide pin 37 1st cam 38 2nd cam

Claims (7)

  In the Guan Yin door, one or more guide pins with different heights are provided on either one of the upper and lower sides of the storage chamber opening, and one or more cam shapes with different heights are provided on the corresponding one end face of the partition. A refrigerator door device characterized by that.   A first guide pin that is taller is provided on the side farther from the hinge of the door to which the partition is attached, and a second guide pin that is shorter is provided on the side closer to the hinge, and the partition is located inside the cabinet with the door closed. The refrigerator door device according to claim 1, wherein a short first cam corresponding to the first guide pin is provided on the side, and a high second cam is provided on the side located outside the warehouse.   3. The refrigerator door device according to claim 2, wherein a side desired in the outward direction of the second guide pin is formed to be an arcuate surface having a large curvature radius.   The refrigerator door device according to claim 2 or 3, wherein the second guide pin is extended to the rotating shaft of the partition.   The door device for a refrigerator according to claim 1 or 2, wherein the packing mounting surface of the door opposite to the door to which the cam mechanism is mounted is inclined.   The door device for a refrigerator according to any one of claims 1 to 5, wherein a cam mechanism is provided in the vicinity of the handle.   The refrigerator door device according to any one of claims 1 to 5, wherein a cam mechanism is provided in the vicinity of the mechanical opener.

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