JP2014092285A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator which is provided with a door structure capable of preventing a problem of the deterioration of door opening and closing force or the like even when a guide pin is movable and a positional relation between the guide pin and a guide groove of a partition body is deviated.SOLUTION: A refrigerator 100 having a clamshell type door includes: a main body 3; two doors 1, 2 which are freely rotatably attached to an opening part 4 of the main body 3 and opens and closes the opening part 4 in a clamshell method; a guide pin 6 which is disposed on the upper edge inner side of the opening part 4 of the main body 3; a partition body 5 which is freely rotatably disposed on a back surface of an edge part of the side opposite to a freely rotatable attachment part of one side door 1 and is extended in the up and down direction; and a guide groove 7 of curved shape which is disposed on an upper part of the partition body 5 and causes the guide pin 6 to be inserted and extracted therefrom and therein according to the opening/closing movement of one of the doors, the guide pin 6 has a mechanism of moving in the horizontal direction.

Description

  The present invention relates to a refrigerator provided with a double door, and more particularly to a refrigerator door structure.

In a refrigerator with a double door, the door is provided with a partition that closes between the doors when the doors are fully closed as a countermeasure against cold air leakage between the left and right doors. This partition is rotated and folded so as not to collide with the door on the opposite side when the door is opened and closed. In this rotation operation, the guide pin of the guide structure provided on the refrigerator box side is inserted into the guide groove provided at the upper end portion of the partition body, and the guide pin is inserted into the guide groove by the operation of closing the door provided with the partition body. It is realized by sliding.
As a main prior art, for example, in Patent Document 1, a partition body is configured to be movable by linking two support arms, thereby facilitating the opening and closing of the door, and smoothing without rattling of the partition body. A structure that achieves rotation is disclosed. Patent Document 2 discloses a structure in which a guide member having a guide groove is provided on the main body side, and a roller that is inserted into the guide groove is provided on a door-side partition. Further, in Patent Document 3, a guide pin having a constricted portion is provided on the main body side, a groove having a wide entrance width in the vertical direction and a narrow width at the top, and a guide pin at the top of the groove. Has disclosed a structure in which a curved guide groove is inserted.

Japanese Patent Laid-Open No. 10-54648 Japanese Utility Model Publication No. 63-185087 JP 7-305943 A

  However, in the door structure of Patent Document 1, since it is necessary to provide links of support arms at the upper and lower ends of the partition body, the structure becomes complicated and the cost increases. Also in the door structure of patent document 2, since it is necessary to provide the guide member which has a guide groove on the upper and lower sides of a main-body opening part, a structure becomes complicated and cost becomes high. In the door structure of Patent Document 3, since the guide pin is a fixed type, there is a possibility that the position of the guide pin and the guide groove is displaced. When the position is displaced, the door opening / closing force is deteriorated, and the door There are problems such as half-opening.

  On the other hand, as shown in Patent Document 3, a guide pin is a fixed type in the current mechanism for countermeasures against cold air leakage of the double doors. Therefore, the positional relationship between the guide groove at the end of the partition and the guide pin on the main body side needs to be set severely. When the position of the guide pin or the guide groove is greatly shifted in the left-right direction of the refrigerator, the guide pin does not enter the guide groove, and in the worst case, the guide pin does not get into the guide groove (overshoot). In addition, even when the positional deviation of the guide pin or the guide groove is small, the contact angle between the guide pin and the guide groove changes, and an extra force is required for the rotating operation of the partition body. Furthermore, the positional relationship between the guide pin and the guide groove when the door is closed also deviates, which leads to the problem that the guide pin is caught on the inclined surface of the guide groove and the partition body cannot be fully rotated and held in a half-open state (door). Half open, cold air leak). For this reason, it is conceivable to widen the gap between the guide grooves (which means the maximum entrance width at which the guide pins can be inserted into the guide grooves when the guide pins are inserted). However, although widening the guide groove entrance is effective in preventing slipping, it causes problems such as poor rotation of the partition, heavy opening / closing of the door, or half-opening of the door due to misalignment of the guide pins. This is not a fundamental solution.

  The present invention proposes a door structure having a movable guide pin different from Patent Documents 1 to 3, and the guide pin and the guide groove of the partition body due to distortion of the refrigerator main body or door fall, initial variation, etc. Even if the positional relationship is deviated, a refrigerator having a door structure capable of eliminating problems such as deterioration in door opening / closing force, poor partition rotating operation, heavy door opening / closing operation, or door half-opening is obtained. The purpose is that.

  The refrigerator according to the present invention includes a box-shaped main body, two doors that are rotatably attached to the opening of the main body, open and close the opening in a double door manner, and a guide pin that is provided inside the upper side of the opening of the main body. A partition provided on the back surface of the end opposite to the rotatable mounting portion of one door and extending in the vertical direction, and provided on the upper portion of the partition. In a refrigerator having a double door with a curved guide groove into which a guide pin is inserted and removed in accordance with the opening / closing operation, a moving mechanism for moving the guide pin in the horizontal direction is provided.

  The refrigerator according to the present invention includes a moving mechanism in which the guide pin moves in the horizontal direction in the refrigerator having a double door, so that the guide pin has a small contact area with the guide groove, that is, the guide. Since it moves to a position where the force applied to the groove becomes small, the door opening / closing force deteriorates due to the position fluctuation of the partition body and the guide pin, the partition body rotation malfunction, the door opening / closing operation becomes heavy, or the door half-open Trouble can be solved.

It is a schematic perspective view which shows the state which opened one door of the refrigerator which concerns on Embodiment 1 of this invention. It is a schematic perspective view which shows the state which closed the one door of the refrigerator which concerns on Embodiment 1 of this invention. It is a top view which shows the positional relationship of the guide pin at the time of the door closure concerning Embodiment 1 of this invention, and the guide groove of a partition body. It is a figure which shows the moving mechanism of the guide pin which concerns on Embodiment 1 of this invention. It is a figure which shows the shape before and behind the expansion of the front-end | tip part of the guide groove which concerns on Embodiment 2 of this invention. It is a figure which shows the moving mechanism of the terminal part of the guide groove of the partition which concerns on Embodiment 3 of this invention.

  Hereinafter, embodiments of a refrigerator according to the present invention will be described with reference to the drawings. In addition, the following drawings including FIG. 1 are schematically shown, and the relationship between the sizes of the constituent members may be different from the actual one.

Embodiment 1 FIG.
FIG. 1 is a schematic perspective view showing a state in which one door 1 of the refrigerator 100 according to Embodiment 1 of the present invention is opened, and is an enlarged view (a) of a guide pin mounting portion and an enlarged view of an upper portion of a partition body ( b) is also shown. FIG. 2 is a schematic perspective view showing a state in which one door 1 of refrigerator 100 according to Embodiment 1 of the present invention is closed.
The refrigerator 100 according to the first embodiment is provided with doors 1 and 2 that open and close in a double door manner, and has a structure in which one door 1 can be opened and closed independently regardless of whether the other door 2 is opened or closed. is there.

  The double doors 1 and 2 are provided for opening and closing the front opening of the refrigerator compartment of the refrigerator 100, for example, and one end of each door 1 and 2 is rotatable to the opening 4 of the box-shaped main body 3. Is attached. A magnetic gasket (not shown) is stretched around the rear peripheral edge of each door 1, 2 so as to cover the opening end of the main body 3, and the magnetic gasket leaks cold air when the doors 1, 2 are closed. To prevent it.

Here, the double door type door structure will be described.
As shown in FIG. 1 and FIG. 2, a partition body 5 extends in the vertical direction on the back surface of the opposite end of the rotatable mounting portion of one door 1 and is rotatably provided. Yes. In the upper part of the partition body 5, a guide groove 6 provided in the upper side of the opening 4 of the main body 3 and a guide groove 7 to be inserted and removed is formed in a curved shape.

  For example, the partition 5 is rotated at an angle of 90 degrees, and is rotated perpendicularly to the back surface of the door 1 as shown in FIG. When the door 1 is closed from this state, the guide pin 6 provided on the inner side of the upper side of the opening 4 of the main body 3 is inserted obliquely into the curved guide groove 7 provided in the upper part of the partition body 5. . As the guide pin 6 enters the guide groove 7, the partition body 5 rotates outward about the rotation center 5a, and when the door is closed, the partition body 5 is shown in FIG. Thus, it becomes parallel to the rear surface of the door 1. A portion exposed to the outside of the partition body 5 (gasket contact portion 5b) is in close contact with a magnetic gasket (not shown) attached to the back surface of the other door 2. Since this magnetic gasket has magnetism, when the door is closed, the doors 1 and 2 are brought into close contact with the gasket close portion 5b of the partition 5 and the opening end portion of the main body 3 through the magnetic gasket. Therefore, regardless of the opening / closing operation of the other door 2, one door 1 can be opened / closed independently, and the cool air in the main body 3 does not leak out when the door is closed.

FIG. 3 is a plan view showing the positional relationship between the guide pin 6 and the guide groove 7 when the door is closed according to the first embodiment of the present invention. 4A and 4B are diagrams showing a moving mechanism of the guide pin 6 according to Embodiment 1 of the present invention. FIG. 4A is an exploded view of the mounting portion of the guide pin 6, and FIG. 4B is a mounting portion of the guide pin 6. (C) is an AA cross-sectional view of (b).
As shown in FIG. 3, when the door is closed, the guide pin 6 is inserted obliquely into the end portion (the innermost portion) of the guide groove 7, and the door 1 and the door 2 are the main body 3 unless the door 2 is opened. Is in a sealed state.

  In the first embodiment, the guide pin 6 is provided with a mechanism capable of moving in the horizontal direction indicated by a broken arrow in FIGS. 3 and 4. The moving mechanism of the guide pin 6 is provided with springs 8a and 8b on both sides of the guide pin 6, for example, as shown in FIG.

  FIG. 4 will be described. The guide pin 6 is formed integrally with the guide member 9 and forms an elongated protrusion. The guide pin 6 composed of this protrusion protrudes through the opening 11 provided in the guide pin holding member 10 and moves in the horizontal direction (in the direction of the broken arrow) within the opening 11. 9 is slidably provided on the guide pin holding member 10. Then, springs 8 a and 8 b are mounted between the end portions of the guide member 9 and the guide pin holding member 10. The guide pin holding member 10 is provided inside the upper side of the opening 4 of the main body 3. For this reason, when the door 1 is opened and closed, elastic force is applied to the guide pin 6 from both sides by the springs 8a and 8b, so that the guide pin 6 moves to a position where the contact area with the guide groove 7 becomes small. As a result, position fluctuations due to processing errors, mounting errors, etc. of the partition body 5 and the guide pins 6 can be absorbed. That is, when the door 1 is closed, the right or rear spring 8b pushes back the guide pin 6 against the resistance force applied to the guide groove 7 from the guide pin 6, and when the door 1 is opened, the left or front side spring 8b is pushed back. Since the spring 8a pushes back the guide pin 6 against the resistance force applied from the guide pin 6 to the guide groove 7, the position fluctuation based on the above error can be absorbed.

  As described above, according to the first embodiment, since the guide pin 6 is configured to be elastically applied from both sides by the springs 8a and 8b, when the door 1 is opened and closed, the guide pin 6 moves from the guide groove 7 to the guide groove 7. The applied resistance can be reduced, and the guide pin 6 can be moved to a position where it is difficult to apply force to the groove shape of the guide groove 7. Therefore, the opening force and closing force of the door 1 can be reduced. When the external force applied to the guide pin 6 is released, the guide pin 6 automatically returns to the original position by the force of the springs 8a and 8b. Here, the “position where the force is hard to be applied” is a position where the guide pin 6 operates with a minimum contact area with respect to the guide groove 7 when the door 1 is opened and closed. The guide pin 6 is automatically moved to a “position where it is difficult to apply force” by the force of the springs 8a and 8b. Note that the amount of movement of the guide pins 6 in the left and right directions is a maximum of 15 mm. The spring constants of the springs 8a and 8b are 5 N / mm.

In the first embodiment, the rotational force of the partition 5 is assisted by the force of the springs 8a and 8b, and the opening / closing force of the door 1 is reduced. The springs 8a and 8b are compression springs, but may be any tension spring.
In addition, since the conventional specification is a fixed guide pin, even if the positional relationship between the guide pin and the guide groove of the partitioning member causes the position where the rotation of the partitioning member stops midway, the first embodiment. Then, since the guide pin 6 moves to a position where the force is not easily applied by the force of the springs 8a and 8b, the partition body 5 is not locked and a reliable rotation operation can be realized. Therefore, the half-open mode of the door 1 can be prevented, and problems such as cold air leakage or a door alarm sound can be avoided.

  Similar effects can be obtained by using a magnet (not shown) as another moving mechanism of the guide pin 6 instead of the springs 8a and 8b. That is, the guide pin 6 can be moved from both sides by the magnetic force (repulsive force or attractive force) of the magnet.

Embodiment 2. FIG.
FIGS. 5A and 5B are diagrams showing the shape before and after the expansion of the front end of the guide groove 7 according to Embodiment 2 of the present invention.
In the second embodiment, the opening portion of the guide groove 7 is enlarged as shown in FIGS. 5 (a) to 5 (b). The guide pin 6 is movable like the first embodiment.
As shown in FIG. 5A, the normal guide groove 7 has an inner curved portion (curved portion located on the inner side when the door is closed) 7a and an outer curved portion (located on the outer side when the door is closed) that are continuous with the end portion 7c. It has a groove shape having a curved portion 7b. In the second embodiment, as shown in FIG. 5 (b), the guide groove 7 has a gap d2 that is larger than the gap distance d1 of the guide groove 7 shown in FIG. 5 (a). 7 is an enlarged view of the inlet portion of the inner curved portion 7a. Here, the frontage distance d1 is the distance from the gasket contact portion 5b of the partition 5 to the convex top 7e of the inner curved portion 7a, and the frontage distance d2 is the gasket of the partition 5 with the top 7e at the same position. This is the distance from the close contact portion 5b to the enlarged entrance end of the inner curved portion 7a.

  When the guide pin 6 is a fixed type and the groove shape of the guide groove 7 as shown in FIG. 5A, the opening of the guide groove 7 is narrowed. Deterioration of power is increased. However, as shown in FIG. 5B of the second embodiment, in the groove shape in which the opening of the guide groove 7 is enlarged, the guide pin 6 can be easily inserted, and the error absorbing action by the movable guide pin 6 is also reduced. Together, it is possible to further absorb errors due to large positional variations of the partition body 5 and the guide pin 6, so that the reliability of the opening / closing operation of the door 1 can be further improved.

Embodiment 3 FIG.
FIG. 6 is a view showing a moving mechanism of the end portion of the guide groove 7 of the partition body 5 according to Embodiment 3 of the present invention. 6A and 6B are plan views showing the coupling state of the guide pin 6 and the guide groove 7 of the partition body 5, and FIGS. 6C and 6D are plan views showing the internal configuration. FIG.
In the third embodiment, as shown in FIG. 6, the second end portion 7d having the same shape is provided at the end portion 7c of the guide groove 7 of the partition body 5, and the second end portion 7d is a movable guide. It is configured to be movable by being pushed by the pin 6. The second end portion 7 d is biased by the spring 12 in a direction facing the guide pin 6. That is, in the third embodiment, the second end portion 7d and the guide pin 6 provided in the guide groove 7 are configured to be movable. Further, the left spring 8a shown in FIG. 4 may be omitted, and only the right spring 8b may be provided.

In the third embodiment, when the door 1 is closed, the guide pin 6 is pushed back by the force of the right spring 8b until the guide pin 6 hits the second end portion 7d. When the guide pin 6 comes into contact with the second end portion 7d and pushes the second end portion 7d to a position where the guide pin 6 contacts the end portion 7c, the force of the spring 12 and the spring 8b balances to cause the guide pin 6 to Move to a position where it is difficult to catch.
When the door 1 is opened, when the guide pin 6 is released by the force of the spring 12 and the spring 8b, the guide pin 6 is smoothly extracted from the guide groove 7, so that the door 1 can be opened smoothly. it can.

  According to the third embodiment, the second end portion 7d provided in the end portion 7c of the guide groove 7 and the guide pin 6 are configured to be movable. Thus, the guide pin 6 can be moved to a position where it is difficult to apply force to the groove shape of the guide groove 7. Therefore, the opening / closing force of the door 1 is prevented from deteriorating, and the partition body 5 can be reliably rotated without being locked, thereby avoiding problems such as half-opening of the door 1, cold air leakage, or a door alarm sounding.

  1 Door, 2 Doors, 3 Body, 4 Opening, 5 Partition, 5a Rotation Center of Partition, 5b Gasket Contact, 6 Guide Pin, 7 Guide Groove, 7a Inner Curve, 7b Outer Curve, 7c End 7d 2nd terminal part, 7e Top part of inner curved part, 8a, 8b Spring, 9 guide member, 10 guide pin holding member, 11 opening part, 12 spring, 100 Refrigerator.

Claims (5)

A box-shaped body,
Two doors that are rotatably attached to the opening of the main body and open and close the opening in a double-sided manner;
A guide pin provided inside the upper side of the opening of the main body;
A partition provided rotatably on the back surface of the end opposite to the rotatable mounting portion of one door and extending in the vertical direction;
A curved guide groove provided on an upper portion of the partition body, into which the guide pin is inserted and removed according to an opening / closing operation of the one door;
In a refrigerator having a double door with a door,
A refrigerator comprising a moving mechanism for moving the guide pin in a horizontal direction. The refrigerator according to claim 1, wherein the guide pin moving mechanism includes a spring that applies an elastic force to the guide pin from both sides.   The refrigerator according to claim 1, wherein the guide pin moving mechanism includes a magnet that applies magnetic force to the guide pin from both sides. The guide groove has a groove shape having a terminal part, an inner curved part that is continuous with the terminal part, and is located inside when the door is closed and an outer curved part that is located outside.
The second end portion is provided at the end portion of the guide groove, and the second end portion is movable by being pushed by the guide pin. The refrigerator according to one item. The guide groove has a groove shape having an end portion, an inner curved portion that is continuous with the end portion, and is located inside when the door is closed, and an outer curved portion that is located outside.
The inner distance is such that a frontage distance from the gasket contact surface of the partition body to the inlet end of the inner curved portion is larger than a frontage distance from the gasket contact surface of the partition body to the convex top of the inner curved portion. The refrigerator according to claim 1 or 4, wherein an inlet portion of the curved portion is formed in an enlarged shape.

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