JP4215805B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator provided with a door closing device.

  In recent years, eating habits have changed, and daily foods are often purchased at nearby food stores and cooked, and food is purchased for a week at a suburban large supermarket, etc. Storage has become common. In response to the increase in the use of frozen foods, large refrigerators with a capacity exceeding 400 liters are generally spreading at home.

However, as the size of the refrigerator increases, the size of the door increases, so the amount of food stored in the door increases along with the door itself. When the door is closed and the door collides with the refrigerator body, a loud collision sound is generated. .

Moreover, in the refrigerator, when the door is closed when the method of closing is insufficient, a so-called half-door state can be obtained. Then, the technique of patent document 1 is proposed as a prior art which prevents a half door state in the door closing device of a refrigerator. According to Patent Document 1, when a door is closed using a motor, the door closing member draws a passive portion provided on the door and closes the door, and the minimum necessary operation reliably closes the door. It is described.

JP 2004-3774 A

However, due to the increased weight of food stored in the conventional technology due to the increase in size of doors, the collision sound when the door is closed gives an uncomfortable feeling, and the food stored in the door collides with the door or food, and the surface is damaged. Indentation may cause damage. Especially when the door is closed tightly, the damage caused to the food becomes larger.

In addition, when the door is in a half-door state, the cold air leaks to the outside and the refrigeration function is reduced, the quality of the stored food is deteriorated, and the outside air outside the refrigerator intrudes into the refrigerator to cause condensation. There may be a disadvantage that water droplets adhere inside.

Furthermore, the technique of the above-mentioned Patent Document 1 mainly describes a configuration in which the door is forcibly closed when the door is in a half-open state. Specifically, the door is closed by motor power. Therefore, no consideration is given to reduce the impact when the door is closed when the door is strongly closed.

  In addition, the main causes of the so-called half-door state that the door is not completely closed include “too much food” and “forgetting to close the child”. It wasn't. Furthermore, many of the problems that users of refrigerators feel when they are in a half-door state are “unnecessary for electricity bills” and “damaged food”, which were not taken into account.

Furthermore, the refrigerator closing mechanism is configured to appear in the appearance of the refrigerator due to the mechanism, but the design is not considered.

The present invention has been made in view of the above problems, and includes a door closing device that closes the door even when the user of the refrigerator strongly closes the door or when the force to close the door is weak. The object is to provide a refrigerator. Alternatively, it is an object of the present invention to provide a refrigerator suitable for power saving and food storage at home by addressing problems caused by the operation of closing the door. Or it aims at providing the thing which was excellent in the designability in the refrigerator provided with the door closing device.

The object includes a door that is supported by the refrigerator main body so as to be opened and closed, a contact member provided on the door, and a receiving part that is provided on the refrigerator main body and is capable of contacting or detaching from the contact member . A rotating plate pivotally supported between a closed position where the receiving portion comes into contact with the contact member and the door is closed, and an open position where the receiving portion is separated from the contact member; A door closing device having one end of the rotating plate and the other end of an elastic member supported by the refrigerator body, wherein the elastic member is positioned between the closed position and the open position where the tension is maximum. In the vicinity of the closed position of the door, the elastic member holds the door in the closed position via the receiving portion and the contact member, and the door is closed when the door is open. when the device is in the closed chain position, the door or the door closing device It is accomplished by comprising a return mechanism for returning.

Further, the object is to provide a revolving door supported by the refrigerator main body so as to be openable and closable, a contact member provided on the revolving door, and a door closure provided on the refrigerator main body and capable of contacting or detaching from the contact member. A rotation plate provided with a spring member that holds the first position and the second position on the upper surface of the refrigerator main body, and resistance adding means for applying a rotational load resistance when the door is closed. A contact portion for receiving the retracting member provided on the door side when the rotating plate is in the first position and guiding the spring member to the second position with the spring member, and the door The closing device includes a leaf spring that guides a retracting member provided on the door side to the abutment portion when the abutment portion is in the second position with the door open. This is achieved by configuring the outer side of the contact portion.

ADVANTAGE OF THE INVENTION According to this invention, even when the user of a refrigerator closes a door strongly or when the force which closes a door is weak, the refrigerator provided with the door closing apparatus which closes a door can be provided.

Alternatively, it is possible to provide a refrigerator suitable for power saving and food preservation at home by dealing with problems caused by the operation of closing the door.

Or the thing excellent in the designability can be provided in the refrigerator provided with the door closing device.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing an overall configuration of a refrigerator according to an embodiment of the present invention. As for this refrigerator, the main body housing | casing 1 has several storage space formed in the inside, The front opening part of this storage space is covered with the some door. In the present embodiment, the refrigerating room arranged in the uppermost stage is covered with doors 2L and 2R of so-called double doors that are double left and right. In the present specification, 2L and 2R may be simply represented by reference numeral 2.

In addition, a vegetable room is disposed below the refrigerator compartment, and this vegetable room is covered with a drawer-type vegetable room door 4 that is pulled out to the front. This vegetable room has a temperature setting suitable for vegetable storage.

Furthermore, the lower part of the vegetable room is a freezing room, and the freezing room has a front opening covered by a drawer-type door. In this embodiment, the freezer compartment is covered with three doors 5, 6, 7.
An ice making chamber is disposed on the upper left side of the freezer compartment, and ice making means is provided in the ice making chamber with an ice making means (not shown) and accumulated in the ice making chamber. When the ice in the ice making chamber is taken out, it is detected that the amount of ice is reduced by an ice amount detecting means (not shown), and ice making is automatically performed to replenish the ice in the ice making chamber. The front surface of the ice making chamber is covered by the ice making chamber door 5, and the ice in the ice storage box in the ice making chamber can be taken out by pulling it forward. The right side of the ice making room is a storage room in a freezing temperature zone, and the opening is covered by a drawer type door 6. In addition, it is good also as a structure provided with the switching room which can select temperature setting of a freezer, a refrigerator room, or a chilled room close | similar to ice temperature by this selection in a user, for example.

A freezing room is arranged at the lowest level and can store frozen foods and the like. The freezer compartment door 7 is also a drawer-type door at the front opening. These drawer type doors are generally configured as doors in which a frame provided on the door side slides in a rail provided on the main body side. Moreover, in the refrigerator of a present Example, a refrigerator compartment and a vegetable compartment are storage rooms of the substantially same temperature range, and are equipped with the heat insulating material between the ice-making room and freezer compartment below. Further, when the switching chamber is provided as described above, a heat insulating material is also arranged between the ice making chamber and the freezing chamber.

A seal member for preventing cold air in each room from leaking outside is provided over the entire periphery where the doors of the refrigerator room, vegetable room, ice making room, and freezer room are in contact with the casing. This seal member is provided on the door side, and a magnet seal in which a magnet is enclosed is generally used. When the door is closed, the magnet is attracted to the iron plate constituting the housing 1 so that the front surface is in uniform contact with the housing 1 to obtain a sealing property.

  As described above, the doors 2L and 2R of the refrigerator compartment are so-called double doors that are opened to the left and right, and are configured to open and close by rotating around the rotation fulcrum 3 covered with a cover.

  In such a configuration, the details of the upper surface of the refrigerator housing 1 will be described later, but the pin 23 (FIG. 3) provided on the refrigerator compartment door 2 can be engaged with or separated from the upper surface, and the door is closed. Is provided with a door closing device 10 (10L, 10R) for closing the door 2 by pulling the pin 23. Especially when the door 2 is closed, a deceleration force is applied to the pin 23 by the damping means. It is configured.

Therefore, when the door 2 is closed, the door is decelerated, and the seal member provided on the door 2 is the main body 1.
When the door 2 comes into contact with the door, the door 2 is at a low speed, so no collision sound is generated. Therefore, it is quiet even when the door is closed, and since no impact force is generated, it is preferable that foods and beverages stored inside the door do not hit each other and are damaged. The door closing device 10 also prevents the door 2 from being in a half-door state.

  The configuration of such a door closing device 10 will be described below with reference to FIGS.

2 and 3 are perspective views showing the configuration of the door closing device in a state in which the cover covering the door closing device 10 provided at the upper part of the housing and the cover covering the rotation fulcrum 3 are removed, FIG. 4 to FIG. 9 is a plan view. In the subsequent drawings, the right door closed state 10R that closes the right door 2R will be described in detail, but the left door closing means 10L is also different in that it has a symmetrical shape, and there is no particular notice. As long as the configuration and operation are the same.

2 to 5, the door 2 </ b> R is rotatably supported around a rotation fulcrum 3 provided at the end of the housing 1, and can be opened and closed.

The door closing device 10 (10R) includes a base member 8 placed on the upper surface of the main body housing 1. Although various mechanisms for opening and closing the door are mounted on the base member 8, they are not necessarily located on the base member 8, and are located on the casing on the upper surface of the refrigerator. It does not matter. That is, in the relationship with the refrigerator compartment door 2, the door 2 is opened and closed by the relationship between the door closing device (door closing mechanism) on the housing 1 side and the corresponding mechanism on the refrigerator door 2 side.

The base member 8 is provided with a rotating plate 12 that is rotatably supported around a rotation fulcrum 11 on the base member 8. The rotating plate 12 reciprocates between a position where the door 2 is opened and a position where the door 2 is closed. A concave portion 24 is formed on the outer edge side of the rotating plate 12, and the concave portion 24 serves as a receiving portion for receiving a door side member as will be described later. The concave receiving portion 24
2 and 3 are formed thicker than the other portions of the rotating plate 12, and the concave groove width is configured such that the opening position is the widest and the back side is narrow. That is, it has a shape opened to the outside. Further, the rotating plate 12 has a pin 13 as a mounting portion for spring mounting.
The spring 15 is hung between the fixing pin 14 which is a spring mounting portion provided on the base member 8.

The door 2 </ b> R is provided with a flat plate-like protrusion 22 that is fixed to the upper portion of the door 2 </ b> R and protrudes toward the housing 1, and a contact pin 23 that extends downward from the protrusion 22. . By the protrusion 22 and the contact pin 23 functioning as the contact member, the door is closed through the receiving portion 24 on the door closing device 10 side which is a contacted member. The contact pin 23 can enter or leave the opening at one end of the receiving portion 24 with respect to the receiving portion 24 provided on the rotating plate 12 at a certain opening angle θ of the door 2R. It is installed in such a positional relationship. That is, the abutment pin 23 enters the back side of the receiving portion 24 through the opening at one end of the receiving portion 24 as the door 2R is opened and closed and the rotating plate 12 is rotated, or conversely passes through the opening. In this configuration, the receiving unit 24 is detached.

The receiving portion 24 has a concave shape as described above, and is a portion constituting the wall portion of the receiving portion 24, and of the sides that are in contact with the contact pin 23, the side closer to the door 2 is the outer side 25 and the door 2. The far side is referred to as the inner side 26. Details of the operation will be described later.

  When the width of the door 2R is L1, the protrusion 22 is located on the center side of the housing 1 with respect to the end on the rotation fulcrum 3 side rather than the intermediate position of the door 2R (position where it becomes L1 / 2). Better to be located. Thus, by taking the distance from the end portion on the rotation fulcrum 3 side to be larger than L1 / 2, the pulling force of the door of the door closing device 10 can be reduced, and food is stored in the pocket portion inside the door. Even a heavy door can be closed with a compact mechanism. Furthermore, in the case of a refrigerator having an overall width of 60 to 70 mm, if the distance from the end on the side of the rotation fulcrum 3 is within L1 / 2 to 3L1 / 4, the relationship with the rotary partition described later, and others This is also preferable in relation to the side door 2L. More desirably, the position is 2L1 / 3. If the position is larger than 2L1 / 3, the closing force applied to the rotating plate 12 side can be reduced, but the contact pin 23 of the protruding portion 22 and the receiving portion 24 of the rotating plate 12 start to engage. Since the opening angle θ of the door becomes small, the closing operation is not performed unless the position at which the door closing device starts the closing operation is close to the main body. In this case, the user is less likely to benefit from the door closing device. On the other hand, when the position is smaller than 2L1 / 3, the operation start angle of the spring 15 on the door closing device side is increased, but the spring force of the spring 15 needs to be increased.

  2 and 4 show a state in which the door 2R is in the closed closed position, and the rotating plate 12 rotates counterclockwise (hereinafter, the counterclockwise rotation is represented by an arrow CCW) in the drawing and is closed. It is in a state. The contact pin 23 provided on the door 2R is in contact with the outer side 25 of the receiving portion 24 and is biased by the spring 15 in the direction of closing the door 2R, and the door is in a closed state. That is, FIG.2 and FIG.4 has shown the state which the contact pin 23 contact | abuts to the receiving part 24 provided in the rotating plate 12, and is drawn in the refrigerator main body side.

The closed position stopper 28 and the open position stopper 27 provided on the plate-like base member 8 are stoppers that restrict the rotation angle range of the rotating plate 12 and have a height that can contact the rotating plate 12.

A state in which the door is open, a state in which the door is opened, or a state in which the door is closed (a state immediately after the contact pin 23 contacts the receiving portion 24 of the rotating plate 12 when the door is closed) In the same manner, as shown in FIG. 3 and FIG. 5, the rotating plate 12 is not in contact with the closed position stopper 28 and has a gap.

  One end of the spring 15 is hung on a pin 13 provided on the rotating plate 12, and the other end of the spring 15 is hung on a fixed pin 14 provided on the casing, and is stretched with a tension F1.

  Here, one end of the spring 15 is supported by a pin 13 positioned on the rotating plate 12, and the other end is supported by a fixed pin 14 positioned on the housing 1 (base member 8). Since the straight line connecting both ends of the spring 15 between the closed positions moves from one side of the rotation fulcrum 11 of the rotary plate 12 to the other side, the stoppers 27 and 28 function as the rotary plate 12 in the open position or the closed position. It is the structure which can borrow and hold.

  In the case of the present embodiment, the rotational damping imparting section 70 has a damping force when rotating in the clockwise direction (hereinafter, the clockwise direction is indicated by an arrow CW), and when rotating in the CCW direction, the damping force. It is configured to perform a one-way damping operation such that the wheel rotates without being operated.

  The one-way damping operation is an operation in which the damping force by the rotation damping means 70 acts when the door is closed, and the idling force does not act when the door is opened.

Further, a gear portion 72 is provided in a part of the rotating plate 12, and a gear portion 71 is also provided in the rotation damping imparting portion 70, and the rotating plate 12 is configured to rotate by engaging these gear portions 71 and 72. ing. Therefore, the rotation attenuation applying unit 70 also rotates with the rotation of the rotating plate 12. Further, the number of teeth of the gear portion 72 provided on a part of the rotating plate 12 is configured to be larger than the number of teeth of the gear 71 provided on the rotation damping applying portion 70. If the ratio of the number of teeth is 1: N, the rotational damping imparting unit 70 rotates N times faster than the rotating plate 12, so that even if the damping force by the rotational damping means 70 is 1 / N, it is applied to the rotating plate 12. Since the damping force is equivalent, the rotational damping imparting unit 70 can be made small.

  Further, the force received by the rotating plate 12 from the abutment pin 23 when the door 2a is closed is received by the rotation fulcrum 11 of the rotating plate 12, and only the rotational force of the rotating plate 12 is applied to the rotation damping applying portion 70. Therefore, it is not necessary to give the shaft of the rotation attenuation imparting unit 70 an unnecessarily strong strength, and an inexpensive and simple rotation attenuation imparting unit 70 can be used, which is suitable for cost reduction. 8 and 9, the part denoted by reference numeral 50 will be described in detail later, but when the rotating plate 12 is accidentally rotated in the closing direction with the door 2R opened, the rotating plate 12 is rotated. Is a lever for returning to the open position, and is configured integrally with the rotating plate 12.

FIGS. 4 to 9 illustrate in detail the positional relationship between the rotary plate 12 and the pull-in pin 23 when the door is opened and closed, and will be described below.

  First, the door opening operation will be described.

  As described above, FIG. 4 shows a state in which the rotating plate 12 rotates in the CCW direction, the force P1 is applied to the contact pin 23, and the door 2R is closed. FIG. 5 shows a state in which the door 2R is being opened, and a state in which the door 2R is being opened by rotating in the CCW direction. Since the contact pin 23 moves in the direction of the arrow P2 together with the door 2R, the contact pin 23 contacts the outer side 25 of the receiving portion 24 provided on the rotary plate 12 and rotates the rotary plate 12 in the CW direction. In FIG. 6, the door 2 </ b> R is opened to an angle θ, and the spring 15 is positioned directly above the rotation fulcrum 11 of the rotating plate 12. In this position, the tensile force F1 generated by the spring 15 does not cause a moment around the rotation fulcrum 11 of the rotating plate 12, so that it does not rotate in either the opening direction or the closing direction, and is a neutral point in a neutral position. is there.

  When the door 2R is opened further than the neutral point, the rotating plate 12 rotates to the CW side, and the spring 15 gets over the rotating fulcrum 11 to give a rotating moment in the CW direction to the rotating plate 12. Therefore, the rotary plate 12 rotates in the CW direction, and the contact pin 23 moves from the outer side 25 to the inner side 26 as shown in FIG. When the door 2R is further opened, the contact pin 23 is removed from the receiving portion 24 of the rotary plate 12, and a part of the rotary plate 12 comes into contact with the stopper 27 to stop the rotation of the rotary plate 12. Thereafter, the door 2R is manually separated from the door closing device 10, and the user of the refrigerator can manually operate the door. That is, while the door 2R is open, the rotating plate 12 stands by at the above position. FIG. 8 shows this state.

Next, an operation when closing the door 2R will be described. When closing, the user performs an operation of closing the door by rotating the door 2R in the direction of arrow CW in the order of FIGS. 7, 5, and 4 from the state in which the door 2R is opened as shown in FIG. Since the operation differs between when the door is closed very slowly and when the door is closed rapidly, each operation will be described.

First, when the door is closed very slowly, this shows a state where the door stops before reaching the safe closed state, resulting in a so-called half-door state. In the case where the pin 23 provided in the door stops before contacting the receiving portion 24, a case where the pin 23 is closed slowly to the extent that it contacts the receiving portion 24 will be described.

  When the refrigerator door is closed, the user usually pushes the door to give a rotational force and closes the door by the momentum, and the door is not always pushed to the closed position of the door. In other words, an incomplete state such as a half-door state occurs when a rotational force is applied to close the door when the momentum of the rotational force disappears before reaching the fully closed position. When the door is blocked by an obstacle (for example, too much food) before reaching the closed position, or the door is rebounded by a slight reaction force received from the closing mechanism of the hinge part immediately before the door is completely closed. Can be mentioned.

  As shown in FIG. 7, the contact pin 23 comes into contact with the inner side 26 of the receiving portion 24 and starts rotating the rotating plate 12 in the direction of the arrow CCW. At this time, it is desirable that the rotating plate 12 is waiting at a position where the contact pin 23 and the outer side 25 of the receiving portion 24 do not come into contact with each other and the pin 23 and the inner side 26 come into contact with each other. In the present embodiment, the circle indicated by the alternate long and short dash line in FIGS. 6 and 7 substantially corresponds to the rotation locus drawn by the rotating plate 12, but the rotation locus drawn by the inner side 26 is larger than the rotation locus drawn by the outer side 25. The opening of the receiving part 24 is formed so that That is, when the distance from the rotation fulcrum 11 serving as the center of rotation is indicated, the distance to the end of the inner side 26 is larger than the distance to the end of the outer side 25.

Otherwise, when closing the door 2R, the pin 23 comes into contact with the inner side 26 after contacting the tip of the outer side 25 at one end. , Unnatural from the user's perspective.

When the contact pin 23 comes into contact with the receiving portion 24, the rotating plate 12 rotates in a direction to further close the door 2R. In other words, when the door is open, the rotating plate 12 is urged in the direction of arrow CW by the spring 15, but the contact pin 23 and the receiving portion 24 come into contact with each other so that the rotating plate 12 moves in the direction of the arrow CCW. When the force is received, the spring 15 may have a positional relationship over the rotation fulcrum 11.

When the rotating plate 12 rotates and reaches the state of FIG. 5, the spring 15 gets over the position of the rotation fulcrum 11 of the rotating plate 12, so that the rotating plate 12 generates a rotating moment in the direction indicated by the arrow CCW. Therefore, the rotating plate 12 rotates in the CCW direction, and the outer side 25 of the receiving portion 24 comes into contact with the contact pin 23. At this time, since the rotating plate 12 generates a moment in the direction of the arrow CCW by the spring 15, a force in the direction of the arrow P1 is applied to the door through the contact pin 23. This is a direction for closing the door 2R, and thus the door 2R. Continues the closing operation, and finally the door 2R shown in FIG. 4 is closed. At the time of the closing operation at this time, since the damping force from the damping imparting unit 70 is applied, the door is slowly closed, so the speed when the magnet seal contacts the refrigerator body 1 is low, and when the door is closed There are few sounds and it can be closed quietly.

  Next, a case where the door 2R is suddenly closed will be described.

When the door 2R is suddenly closed, the door 2R is decelerated by the damping force applied to the rotating plate 12 by the rotation damping applying unit 70 from FIG. 7 to FIG. However, since the sufficient speed is still maintained, the contact pin 23 continues to move in the closing direction at a speed greater than the drawing speed of the receiving portion 24 due to the rotation of the rotating plate 12 in the CCW direction caused by the spring 15. Therefore, the contact pin 23 continues to push the inner side 26 of the receiving portion 24 in the P1 direction, and the rotating plate 12 rotates in the CCW direction while being pushed by the pin 23. During this time, since the damping force by the damping applying unit 70 continues to be applied, the pin continues to receive the force in the P2 direction and decelerates. Since the door 2R can be sufficiently decelerated before reaching the closed position shown in FIG. 4 by appropriately selecting the rotational damping force generated by the damping imparting portion 70, the speed at which the door 2R contacts the main body. It can be closed quietly with little noise when it is closed.

When the user closes the door 2R vigorously, the pin 23 suddenly hits the inner side 26 of the receiving portion 24, so that an impact sound is generated. As a means for preventing such an impact sound, it is preferable to apply a cushioning material such as a rubber plate to the inner side 26 of the receiving portion 24 because the occurrence of the impact sound can be avoided.

When the door is opened, if the rotational damping force is applied, the door opening force increases for the user, which is not desirable from the viewpoint of operability. Therefore, it is desirable that the rotational damping force be a rotational damping means that operates only when the door is closed and rotates idly when the door is opened.

Further, the lever 30 shown in FIGS. 8 and 9 is in contact with the stopper 27 when the door is open. Here, the position of the rotating plate 12 in the open state is defined by the contact between the lever 30 and the stopper 27, but any position may be used as long as the receiving portion 24 can receive the contact pin 23.
That is, between the open position and the closed position, a member that contacts the rotating plate 12 is not disposed in a circle drawn by the rotation locus of the rotating plate 12, and contact friction with the rotation fulcrum 11 or the like is provided between them. In other words, only the rotational moment applied by the spring 15, the force by the contact pin 23 provided on the door side, and the damping force applied by the rotational damping applying unit 70 are applied.

FIG. 10 is a diagram illustrating the positional relationship between the door closing device 10 and the door 2 in the vertical direction. Receiving part 24
Is formed to be thicker than the other parts of the rotating plate 12 and is longer than the contact pin 23 in the vertical direction. In addition, a spring 15 is provided on the upper portion of the rotating plate 12 at a position substantially the same height as the contact pin 23 and the receiving portion 24. Further, the attenuation imparting portion 70 connected to the gear 71 that meshes with the rotating plate 12 is also disposed at the same height as the contact pin 23 and the receiving portion 24. In other words, the movable pin 23 and the receiving portion 24 that are movable do not interfere with the spring 15 that is also movable, and are disposed at a position that does not contact the attenuation imparting portion 70. Moreover, since it was set as the structure which the contact pin 23 extended downward from the protrusion part 22 and the receiving part 24 contact, and performs the door closing operation, the door closing apparatus 10 is the refrigerator 1 main body from the upper edge edge part of the door 2. The door closing device 10 is configured to have a vertical width that allows the door closing device 10 to fit in a width between the height of the protruding portion 22 protruding to the side and the height of the upper surface of the refrigerator body 1. By comprising in this way, when the cover which covers the door closing apparatus 10 is installed, since the height of a cover can be united with the height of the refrigerator door 2, it looks good also in the state which opened the door. It can become a thing and excellent in the designability.

  Hereinafter, the positional relationship of each member in the door closing device 10 will be described in detail.

Since the door closing device according to the present embodiment is mounted on the upper surface of the refrigerator and the vertical width is set as described above, the overall height of the refrigerator is preferably made as low as possible by reducing the thickness. Therefore, a configuration for realizing a thin door closing device will be described below with reference to FIGS. FIGS. 11, 12, 14, and 15 are cross-sectional views showing a cross-sectional configuration around the rotating plate fulcrum 11 of the door closing device 10. In FIG. 11, since the spring 15 crosses the rotation fulcrum 11 of the rotating plate 12 during the opening / closing operation, the spring 15 is mounted above the rotating plate 12 so as not to cross the rotating plate 12 and the rotating plate fulcrum 11. There must be. Moreover, since the gear part 72 provided in the periphery of the rotating plate 12 and the gear 71 provided in the damping means 70 must be meshed, the gear parts must be substantially on the same plane. Further, since the pin 23 enters and exits the receiving portion 24, the pin 23 and the receiving portion 24 must be arranged so as not to interfere with the spring 15 in the entire opening / closing operation range. And in order to arrange thinly, it is effective to arrange the pin 23, the receiving part 24, the spring 15 and the damping imparting part 70 side by side in parallel so as not to overlap each other, and the door closing device 10 can be configured to be thin.

  FIG. 12 is a longitudinal sectional view of the spring in the configuration of FIG. 11, and the coil portion of the spring 15 is arranged with a gap Gap with respect to the rotating plate 12. In this arrangement, if the tensile force from the spring 15 is F, the height of the force point of the spring 15 at the pin 13 is H1, and the rotational torque T in the CCD direction applied to the rotating plate 12 is T = F × H1. Due to this rotational torque, the rotating plate 12 is deformed to a position 13 'as shown by a broken line in the figure.

Next, an example of a configuration for preventing deformation of the rotating plate 12 as described above will be described with reference to FIG.
15 will be described with reference to FIG.

13 and 14 are a perspective view showing an embodiment and a cross-sectional view in the longitudinal direction of the spring 15. FIG.
14 differs from FIGS. 11 and 12 in that the hook portion of the spring 15 is extended so that the coil portion of the spring 15 does not overlap the rotating plate 12. The length L shown in FIG. 13 can be made larger than the tooth tip circle of the gear portion 72 provided on the rotating plate 12 so that the coil portion of the spring 15 does not contact the gear portion 72. With such a configuration, only the hook portion 15a of the spring 15 overlaps the upper side of the rotating plate 12, so that the height of the pin 13 where the spring 15 is hooked is very close to the upper surface of the rotating plate 12. Can be provided. Therefore, the height H2 (<H1) of the force point of the spring 15 can be set. At this time, since the rotational torque T ′ in the CCD direction applied to the rotating plate 12 is F × H2 (<F × H1), the deformation of the rotating plate 12 as shown by the broken line in FIG. 11 can be suppressed. Is preferred.

FIG. 14 is a cross-sectional view of another means for preventing deformation of the rotating plate 12. In FIG. 14, the member denoted by reference numeral 12 ′ is a second rotating plate above the spring 15.
It is the structure which is connected to and rotates integrally. The upper surface base member 8 ′ is connected to the base member 8 by a connecting member 19, and the second rotation fulcrum 11 ′ is provided on the upper surface base, and is arranged coaxially with the rotation fulcrum 11, so that the second rotation It is provided so as to be rotatable by fitting with a hole provided in the plate.

With such a configuration, the rotary plates 12, 12 'and the rotation fulcrums 11, 11' are provided above and below the spring, and the force applied by the spring 15 can be supported from above and below the spring 15. This is preferable because the illustrated rotating plate 12 can be prevented from being deformed into a broken line state 12 '(see FIG. 11).

By the way, when the door is open, as shown in FIG. 8, the rotating plate is held in the open position, and the positional relationship in which the pin 23 can enter the spiral groove 24 when the door is closed. Keep. However, for example, the rotating plate 12 rotates due to a user touching it or touching it by mistake, and is pulled by the tension of the spring 15 and only the rotating plate 12 rotates to the retracted position as shown in FIG. It can happen. The rotating plate is stopped at the pull-in stopper 28. In this state, even if the door 2R is closed, the pin 23 cannot enter the spiral groove 24, and the door 2R cannot be closed.

Therefore, a lever portion 50 is provided by extending a part of the rotating plate 12, and this lever portion 50 is shown in FIG.
When the rotating plate 12 is rotated to the retracted position as described above, it projects to the near side so that the user can operate it, and the user can apply force in the direction A shown in FIG.
When the user applies a force in the direction A, the rotating plate 12 can be rotated in the direction CW until it abuts against the stopper 27 and rotated to the release position shown in FIG. 8 to return to the open state. . Since the spring 15 gets over the position of the rotation fulcrum 11 of the rotating plate 12 during the rotating operation, the rotating plate 12 can maintain the open position shown in FIG. 8, so that the next time the door is closed, The closing operation up to FIGS. 7 to 4 can be performed.

In particular, providing the lever portion 50 integrally with the rotating plate 12 does not increase the number of parts, which is effective in reducing the price.

However, if the lever 50 is used to return the rotating plate 12, the lever 50 must be disposed at an operable position, and the tip of the lever can be seen by the user when the door is open. It looks bad, and there are problems with operability.
Because the door closing device 10 of the present embodiment is located on the upper surface of the refrigerator body 1, it is not only difficult to reach, but the user must perform an operation at such a high position while looking up. It is.

Therefore, the return mechanism shown in FIGS. 16 and 17 is effective. The relationship between the operation of the door closing device 10R in opening and closing the door and the arrangement of the rotary plate 12, the spring 15, the receiving portion 24, and the rotational damping imparting portion are the same as described above.

  The difference lies in the outer side 25 forming the receiving part 24. That is, a part of the outer side 25 is constituted by a stainless steel leaf spring 30 as shown in FIGS. As shown in the figure, the leaf spring 30 is attached in contact with the rising portion 30a that becomes a part of the outer side 25 of the receiving portion 24, the inclined portion 30b that comes into contact when the contact pin 23 returns, and the rotating plate 12. Mounting portion 30c.

The upper end position of the rising portion 30a is configured to be substantially the same height as the upper edge portion of the portion formed integrally with the rotating plate 12 of the receiving portion 24. Therefore, the opening / closing operation can be performed without changing the positional relationship between the spring 15 and the pin 23 as described above.

The state shown in FIG. 16 shows a state in which the door closing device 10R has been closed although the door is open. That is, the rotating plate 12 is in contact with the closing position stopper 28, and the contact pin 23 is not inserted into the opening of the receiving portion 24 even when the door is closed.

The rising portion 30a is temporarily pushed downward by D1 when the slope portion 30b is pushed down by the pin 23 as shown in FIG. 17B. The dimension D1 is a difference in height between the lowermost surface of the contact pin 23 and the upper edge of the receiving portion 24. By lowering the upper end of the rising portion 30a by the dimension D1, the pin 23 is closed. The position can be returned.

Of course, when the pin 23 enters the receiving portion 24, the rising portion 30a of the leaf spring 30 is configured to be restored to the required dimension of the outer side 25. That is, the inclined surface portion 30b comes into contact with the contact pin 23, and when the inclined surface portion 30b comes into contact with the contact pin 23, the leaf spring 30 is urged downward.

The slope portion 30b is inclined by linearly connecting between the mounting portion 30c that contacts the rotating plate 12 and the receiving portion 24 having a vertical width that is thicker than the other portions of the rotating plate 12. Even if the abutment pin 23 moves with a constant height by pushing the door in the closing direction, the leaf spring 30 is pushed downward. When the door is further pushed and the contact pin 23 exceeds the slope portion 30b, the contact pin 23 returns to the receiving portion 24, and thereafter, the door can be opened and closed as described above.

As a result, even if the receiving portion 24 rotates to the retracted position, if the door is pushed strongly so as to push down the slope portion 30b of the leaf spring 30 with the pin 23, the pin 23 is shown in FIG.
(B), the pin 23 is engaged in the receiving portion 24 in the retracted position.

In addition, at the position where the leaf spring 30 of the rotating plate 12 is installed, the horizontal portion that contacts the mounting portion 30c, and the inclined surface on the rotating plate 12 side that faces the inclined surface portion 30b and is gentler than the inclined portion 30b. It includes a portion 12b and a protruding locking portion 12a to which the claw 30a 'at the lower end of the rising portion 30a is locked. The inclined portion 12b has a highest position that is lower than the lowest portion of the contact pin 23. When the inclined portion 30b of the leaf spring 30 is pushed most downward, the inclined portion 12b comes into contact with the entire inclined surface. It is configured. The claw 30 a ′ and the locking portion 12 a are in contact with each other in a normal state, and the locking portion 12 a receives an upper force from the leaf spring 30. When the locking portion 12a comes into contact with the claw 30a ', the upper end height of the leaf spring 30 is regulated to be substantially the same as the height of the upper edge portion of the receiving portion 24.

  When the leaf spring 30 is pushed downward by the dimension D1, the claw 30a 'leaves the contact with the locking portion 12a, and the lower end of the rising portion 30a is pushed further downward. At this time, when the lower end of the rising portion 30a comes into contact with another member such as the base member 8, the leaf spring 30 may be deformed. The slope portion 12b described above is also provided for this purpose, and the distance between the locking portion 12a and a member located almost directly below is larger than D1.

  Moreover, since the rising part 30a comprises a part of receiving part 24, it contacts the pin 23 during normal door opening / closing operation | movement. However, since the claw portion 30a 'and the locking portion 12a are in contact with each other at the position shown in the figure, the structure can function as the receiving portion 24 even during the door opening / closing operation. That is, the rising portion 30a of the leaf spring 30 employs a structure in which the claw 30a 'on the rising portion 30a side is engaged with the claw 12a of the rotating plate 12 in order to align with the outer side 25.

  Further, in order to be able to push down the rising portion 30a by D1, a gap (space) shown in FIG. 17A is secured between the inclined surface portion 12b on the rotating plate 12 side and the inclined surface portion 30b of the leaf spring 30. ing.

  Further, a gap is also secured under the claw 30a ′ of the rising portion 30a, and the rising portion 30a is configured to be able to move by the dimension D1.

When the door closing device 10R is in the closed position as shown in FIG. 16 with the door 2R closed, the outer side 25 of the receiving portion 24 and the contact pin 23 normally contact each other as described above. ing. This is because in the closing operation of the door, the contact pin 23 is pushed to the closed position by the outer side 25 and the door is closed.

  On the other hand, when the leaf spring 30 according to the return mechanism is returned, the inclined portion 30b is pushed downward by the contact pin 23 with the mounting portion 30c as a fulcrum, and the contact pin 23 returns.

  At that time, the upper end portion of the rising portion 30a moves to the inside of the receiving portion 24 by the dimension D2 shown in FIG. That is, even if the door 2R is pushed and the contact pin 23 moves to the position of the receiving portion 24 during the return operation, it moves completely inside the rising portion 30a upper end receiving portion 24 by the dimension D2. It will not be a return state.

In the normal closed state, the door 2R is in contact with the opening edge of the refrigerator compartment on the refrigerator body 1 side through a flexible packing, and when the door 2R is further pushed in the normal closed state, the packing It is possible to move further to the back side by the flexibility of.

Therefore, if the distance in the door closed state (distance D shown in FIG. 19) between the steel plate inside the door 2R and the opening edge of the refrigerator main body 1 is set to D2 or more, the packing allowance is set to D2 or more. This can be used. That is, by pushing the door 2R strongly, the door 2R can be moved by the dimension D2 further than the normal closed state, and a complete return state can be realized.

Next, the relationship between the door closing device 10 of the present embodiment and the rotary partition 32 will be described. 18 and 19 are diagrams for explaining the operational relationship between the rotary partition and the door closing device.

FIG. 18 is a cross-sectional view of the refrigerator compartment, and FIG. 19 is a diagram illustrating the relationship between the rotary partition and the door closing device. Among the refrigerator compartment doors 2, the refrigerator compartment door 2 </ b> R includes a rotating partition 32 that forms a 2L side packing 31 receiving surface when the door is closed. The rotary partition 32 is in a solid line position when the door is closed, and when the door is opened, the rotary partition body 32 is positioned in a broken line in relation to the door 2R, and can open the door 2R even when the door 2L is closed. It is configured as follows.

The rotating partition 32 is provided beside the bank-shaped convex portion 34 of the door inner plate in which the door pocket 33 of the door 2R is installed. The rotary partition 32 includes a spring (not shown), and a force is applied in the direction of the arrow P by the spring force around the rotation fulcrum 35 to move between the solid line position and the dotted line position shown in the figure.

That is, it is on the packing 31 side at the position of the solid line, and the convex portion 34 at the position of the broken line.
The rotating partition 32 is configured to be pressed to the side. The spring (not shown) has a switching point N in the middle of the arrow P, and the direction of the spring force is switched based on this N.

The relationship between the rotary partition and the door closing device will be described with reference to FIG. A fixed pin 36 is provided on the housing 1 side, and the guide groove 32a of the rotary partition 32 provided in the door 2R is engaged with the fixed pin 36, and the rotary partition 32 is switched by this engagement. When the point N is exceeded, the rotary partition 32 is rotated to the solid line position in FIG. 18 by the spring force.

In this process, when the door is closed, the fixing pin 36 and the guide groove 32a first come into contact with each other. Depending on the positional relationship between the rotary partition and the door closing device, the contact pin 23 provided on the protrusion 22
Will hit faster than contacting the receiving part 24 of the rotating plate 12.

The problem in this case is the spring force by the spring provided on the rotating partition 32 side. That is, in the initial state where the fixing pin 36 and the guide groove 32a are in contact, the spring force of the rotating partition is
It still works to give a rotational force to the convex part on the door side. Since this force becomes a resistance when closing the door, a force that closes the door to the extent that this spring force is defeated is required to apply this spring force to the packing 31 side beyond the switching point N.

Therefore, in order to overcome this spring force with the door closing means 10R, the spring force of the spring 15 on the door closing device 10R side is added to the amount of the force for closing the door, and the force received by the rotary partition 32 is overcome. It is necessary to have a spring force of a degree. Therefore, in this embodiment, the rotary partition 32 is configured to contact the main body side pin 35 before the door closing device 10R and the door contact pin 32 contact each other.

That is, the rotary partition 32 side is set so as to contact the fixing pin 35 before the door closing device 10R, and the spring 15 of the door closing device 10R is used so that its spring force can counter the reaction force by the rotary partition 32. Is.

Further, one of the reasons why the rotating partition 32 is made to come before the door closing device 10R is as follows. That is, as described above, the door closing device 10R is a device that pulls in the door 2R and automatically closes the door 2R.

Therefore, when the user of the refrigerator accidentally puts his hand between the doors 2L and 2R in the state shown in FIG. 19, there is a risk that a hand (finger) is sandwiched between the doors. In order to eliminate this, it is better that the operation start angle θ of the door closing device is not so large as the opening angle of the door 2R. Therefore, in the case of the present embodiment, the door closing force works because the end (R) on the inner wall side of the door 2R passes the end (L) on the outer wall side of the door 2L.

By doing so, it is possible to prevent the user from getting a finger between the end point (R) and the end point (L).

Further, a configuration is also conceivable in which the relative position between the end point (R) and the end point (L) regarding finger pinching prevention is left as it is and the rotary partition 32 is applied to the fixed pin 36 with a delay from the pull-in start point of the door closing device 10R. At this time, as described above, it is sufficient to set the spring 15 to which a force for defeating the spring force on the rotating partition 32 side is added.

Note that, due to the above circumstances, the spring force required for closing the door differs between the door closing device 10R on the door 2R side provided with the rotating partition 32 and the door closing device 10L on the door 2L side. In this case, the spring force of the spring 15 of the door closing device 10R may be made larger than the spring force of the spring 15 of the door closing device 10L.

  The protrusion 22 attached to the door 2R side will be described with reference to FIGS.

20 is a top view of the door 2R as viewed from above, and FIG. 21 is a cross-sectional view taken along line AA of FIG. In the figure, 2R is a refrigerator compartment door, 31 is a packing, 32 is a rotary partition, 34 is a bank formed by a door inner plate, and 33 is a door pocket made by using the bank. The protrusion 22 is attached at a position 2/3 from the rotation fulcrum 3 of the door 2R when the width of the door 2R is divided into three equal parts. An abutting pin 23 that abuts against the door closing device is attached to the tip portion of the bracket 22. The protrusion 22 and the contact pin 23 are difficult to be related to the stored item 37 stored in the door pocket 33 as shown in the drawing. In particular, in relation to the stored items in the uppermost door pocket 33, damage or the like of the stored items may occur if they are touched during storage or removal.

Therefore, in the present embodiment, the projecting portion 22 is configured such that the tip portion is narrow and the root portion is wide. Since it is the tip part of the protrusion and its vicinity that can be an obstacle in the removal of the stored item, the width is made smaller than the base part. Further, the contact pin 23 is configured not to extend below the packing 31, thereby facilitating removal of the stored item 37 from the door pocket 33. It is also effective to chamfer the ridgeline at the outer edge of the protruding portion 22 or to round the outer edge.

At the same time, the decorative cover can be attached to the surface of the protrusion 22 in consideration of the design of the protrusion 22.

In the description so far, the refrigerator provided with a so-called double door type refrigerator compartment door of the two-door type has been described, but the present invention is not limited to the two-door type, and the one-side opening type 1 as shown in FIG. It can be applied to a door-type refrigerator, and its operation and effect are the same as those of a two-door type. However,
Since the door has a larger mass than the two-door type, it is preferable that the spring and the damping means of the door closing device be stronger.

23 and 24 are perspective views of a refrigerator provided with a door closing device according to an embodiment of the present invention. FIG. 23 shows a state where the door is opened, and FIG. 24 shows a state where the door is closed. In this example, the upper surface of the door closing device 10 is covered with a cover 80 across the door closing devices 10L and 10R. The cover 80 is provided with a notch 81 on the upper surface.
This notch 81 is provided along the movement locus of the contact pin 23 extending downward from the protrusion 22. Therefore, the width of the notch 81 is larger than the width of the abutment pin 23, and the pin 23 extends into the cover 80 from the notch 81 and abuts against the receiving portion 24 of the internal door closing device 10 to close it. Operation is performed. This notch 81 is formed over the front side of the cover 80 in accordance with the length of the contact pin 23.

In a state where the door is closed, the notch 81 is completely covered by the protruding portion 22 and can be configured to look good even when viewed from above. In other words, the protrusion 22
As described above, the width of the tip is smaller than that of the base from the viewpoint of the take-out property of the stored item. The contact pin 23 is formed to have a portion following the same rotation locus.

Moreover, since the vertical width of the door closing device 10 is configured to be smaller than the width of the height of the protrusion 22 and the upper surface of the refrigerator main body 1 as described above, the hinge serving as the rotation fulcrum 3 of the refrigerator door 2. It is possible to cover with the cover 80 having the same height as the cover covering the upper part of the cover. Furthermore, since the height of the cover 80 and the cover that covers the hinges are made uniform, and almost the entire upper front portion of the refrigerator main body 1 can be integrally covered with the cover 80 except for the vicinity of the hinge portion, It can be set as the structure excellent in property.

Moreover, when installing a board | substrate in the back part of a refrigerator upper surface, the height of the cover 80 can be match | combined with the upper surface of this board | substrate cover, and a useless space can be eliminated as much as possible.

A display unit 90 is provided on the front surface of the door 2. The display unit 90 is disposed at an easy-to-see position on the front surface of the door, and is turned on by a light emitting device such as an LED in this embodiment. As shown in FIG. 23, when the door is open, the display unit 90 is lit to notify the user that the door is open. On the other hand, as shown in FIG. 24, when the door is closed, the light is turned off to notify that the door is closed. In other words, the display unit 90 serves as a signal for informing the user of the open / closed state of the door. By displaying the open / closed state in this way, the user can visually recognize an incomplete closed state that is difficult to recognize at a glance, such as a so-called half door. Moreover, by displaying by light emission, a half-door state can be easily recognized even in a dark room such as at night, which greatly contributes to power saving at home.

Usually, in the refrigerator, when the door is opened, the interior light is turned on to illuminate the interior, so that the user can easily find the stored item. When the door is closed, the interior lamp is also turned off. In this embodiment, a light emitting unit is provided as a door signal for notifying the open / closed state using a switch for detecting the open / closed state of the door. That is, the light emitting unit is controlled to be turned on at the same time as the interior lamp is turned on, and the light emitting unit is also turned off when the interior lamp is turned off.

By providing the light emitting unit 90 in this way, the user of the refrigerator can easily know the state when the door is intended to be closed but is not completely closed due to overstuffing of food. It is possible to save electric power at home, and to prevent significant deterioration of food. The refrigerator compartment door 2 according to the present embodiment is a so-called double door revolving door.
It is preferable to control so that the light emission is performed when one of the doors is opened. When the light emitting portions 90 of both doors emit light, the state can be recognized by looking at the light emitting portion of any door when the closing is incomplete.

In addition, you may comprise the light-emitting part 90 so that it may be turned on and off not only when the refrigerator door 2 is opened but also when other doors are opened and closed. In this case, since the user can recognize the half-door state even if the other doors are in the half-door state, it is more effective in saving power and preventing food deterioration in the above-mentioned home.

The turning on and off of the light emitting unit 90 will be described in detail. In the present embodiment, the door opening operation is manually performed, and the door closing device 10 only operates following the movement of the door manually performed. On the other hand, as for the closing operation of the door, the operation is assisted by the door closing device 10 to reach a fully closed state. Therefore, when the light emitting unit 90 is turned on, it is only necessary to change from a completely turned off state to a completely turned on state. It will look good.

Therefore, in this embodiment, when the door is closed, the luminous intensity of the light emitting unit 90 is lowered stepwise to match the door closing operation. The luminous intensity of the light emitting part at the time of closing may be lowered in multiple steps, but may be lowered continuously in a stepless manner. That is, the light intensity of the light emitting unit may be controlled so that the light intensity gradually decreases. The time until the light emitting unit is completely turned off will be described below.

As described above, since the door closing device 10 includes the rotation damping imparting unit 70 inside, the damping force is imparted to the rotating plate 12 in the door closing operation. Therefore, when the door closing device 10 enters the closing operation of the door, the impact is reduced by the rotational damping imparting unit 70, the moving speed of the door is reduced by receiving the force of deceleration from the rotational damping imparting unit 70, It moves slowly in the closing direction and reaches a fully closed state.

The time from when the door closing device 10 enters the closing operation to the fully closed state depends not only on the damping force of the rotational damping applying portion 70 but also on the spring force of the spring 15, the moving speed and weight of the door. In consideration of these various conditions, the light-out time of the light emitting unit may be determined. If sufficient damping force is applied, the time from when the door closing device 10 enters the closing operation to the fully closed state is not greatly affected by changes in other conditions, so the turn-off time is set. Easy to do.

In addition, the switch for detecting the open / closed state of the door may be provided in any place. However, as described above, when the light-emitting unit 90 is turned off over time, the following is performed. It is necessary to configure as follows. That is, in the door closing operation, it is effective to be located at a portion where the switch can be turned ON / OFF before reaching the fully closed state. For example, when the switch is provided on the side wall in the cabinet and pushed by the protrusion of the door inner plate (reference numeral 34 shown in FIG. 20), the switch and the protrusion 30 of the door inner plate are completely connected to the door. The positional relationship may be such that the contact is made before the closed state, and ON / OFF may be switched before the fully closed state is reached.

The door closing device 10 of the present embodiment does not use electric power, and thus contributes to power saving. However, the door is similarly closed using an electrically driven door closing device. There is no problem. In this case, since the start of driving and the completion of closing can be controlled, the design is further improved by controlling so that the light emitting unit 90 is completely turned off together with the completion of closing. Can do.

In addition, although the Example described above described about the example applied to the household refrigerator, this invention is not limited to a household refrigerator, Even if it is a commercial refrigerator, it is the same effect by the same structure. Can be obtained. Alternatively, it can be applied to the door of a device that has an open / close door and puts food in and out, such as a warm storage that temporarily stores cooked food in a warm state. Effects can be obtained.

As described above, the refrigerator of the present embodiment includes a door that is supported so as to be opened and closed, a protrusion 22 and a contact pin 23 that are retractable members provided on the door, and a housing that is coupled to the retractable member. And a door closing device that can be separated.

This door closing device is coupled to the retracting member when the door opening amount is not more than a predetermined value, and is separated from the retracting member when the door opening amount is not less than the predetermined opening amount. Further, the door closing device includes a rotating plate, and the rotating plate is provided between a first position (open position) and a second position (closed position) around a rotation center provided in the housing. It is pivotally supported so that it can rotate.

The rotating plate is provided with an opening having a shape that opens outward, and includes a receiving portion that receives the retracting member as a receiving opening. The receiving portion pulls in the retracting member when the door is closed, and pushes out the retracting member when the door is opened. Further, the first position of the rotating plate is a position where the door is opened by a predetermined opening amount, and the retracting member contacts one side of the receiving portion of the rotating plate and enters the inside of the receiving portion from the opening. Alternatively, the doors can be separated, and the door is in the closed position in the second position. Further, one end is stretched on the rotating plate and the other end is stretched on the housing, and while the rotating plate moves between the first position and the second position, the rotating fulcrum of the rotating plate moves from one side to the other. The rotating plate moves to the side of
In the first position and the second position, a spring member that receives a force in a direction to hold both states, and the rotating plate rotates with respect to the rotating plate when moving from the first position to the second position. A resistance adding means for adding a load resistance is provided.

By configuring in this way, there is an effect of preventing the half door, and it is possible to obtain a refrigerator in which foods contained in the door do not collide and are damaged.

The resistance means is a one-way operation resistance adding means that does not add a rotational load resistance to the rotating plate when the rotating plate moves from the second position to the first position. When the door is opened, the rotational load resistance does not increase the force for opening the door.

Further, since the door closing device 10 is formed by mounting the pull-in member, the spring member 15, and the resistance adding means in parallel with each other, the door closing device 10 can be configured to be thin. It is.

The spring 15 is a coil tension spring having hooks at both ends, and only one hook portion is placed on the top of the rotating plate, and the coil portion is placed outside the rotating plate so as not to overlap the rotating plate. If only this is disposed, the height of the power point can be reduced, and deformation of the rotating plate can be prevented.

Further, in a state where the door closing device is in the closed position when the door is open, the rotary plate is provided with a rotating plate returning means capable of rotating the rotating plate from the second position to the first position. is there. Therefore, even if the rotary plate is mistakenly set to the second position, it can be manually restored to the door open position (first position).

Further, since the rotating plate returning means is a projection (lever 50) formed by projecting a part of the rotating plate, it is easy to externally return the receiving portion 24 from the second position to the first. Can be operated.

Further, the protrusion of the rotating plate returning means protrudes from the cover surface when the rotating plate is in the second position, and the protrusion is in a position retracted from the cover surface when the rotating plate is in the first position. As a result, the design is improved, and even if the rotary plate 12 is mistakenly placed in the second position, the projection serves as a mark and can also serve as a reminder to the user. is there.

Further, a rotating plate provided with a spring member 15 that holds the first position and the second position is provided on the upper surface of the housing, and a resistance adding means that provides a rotational load resistance when the door is closed is connected to the rotating plate, 1
The retraction member provided on the door side is received when the rotation plate is at the position, and the rotation plate is provided with a receiving portion that guides with the spring member to the second position. A force is applied in the direction of closing the door, and this force can be continuously applied even after the door is closed, which has the effect of further preventing the half door. In addition, when the door is moved in the closing direction, it is configured so that a damping force is applied by a one-way operation damper. The impact can be reduced and the noise can be reduced, and the food stored in the door can be prevented from colliding and being damaged.

Further, the door closing device has a leaf spring for guiding the contact member (pin 23) provided on the door side to the receiving portion when the rotating plate is in the closed position (second position) in a state where the door is opened. Since the outer side of the receiving portion is configured by this variable leaf spring, even if the rotating portion is accidentally turned to the second position where the receiving portion is in the closed position The door-side contact member can be positioned at the second position by pressing the door strongly.

Moreover, since the door closing device is provided on both doors of the double doors having the rotary partition on one of the doors, it is possible to make it easier to use a refrigerator that is originally easy to use.

In addition, the door closing device is configured to restrict a rotation range of the rotating plate to a range between the first position and the second position.
The end of the rotating plate comes into contact with the first stopper when the door is opened, and the rotating plate does not come into contact with the second stopper when the door is closed. Therefore, even if there is an error in the mounting of the rotating plate or the mounting of the protrusion 22 and the pin 23, this can be absorbed. Even in this case, in the closed position of the door, the door is held in the closed state by the refrigeration chamber opening edge via the packing, and the closed state is maintained without contacting the second stopper. Further, in this state, since the rotating plate 12 is not in contact with the second stopper, a force is applied to the door in the closing direction, which is effective in maintaining the closed state.

Thus, when the door is closed, a force in the direction of closing the door is applied by the spring, and this spring force is continuously applied after the door is closed, so that the effect of further preventing the so-called half-door is obtained. is there.

Furthermore, when the door moves in the closing direction, it is configured so that a damping force is applied by the one-way operation damper, and the door is decelerated before the packing contacts the main body, and it is configured to close slowly. There is little impact when the door is closed, the noise can be reduced, and there is an effect that food contained in the door does not collide and be damaged.

In addition, a rotating plate that can rotate or return between the retracted position and the open position and can hold the position in both the retracted position and the open position by a spring is provided. A groove-shaped receiving portion (contacted portion) is provided, one end of the receiving portion is an opening, and the door is provided with a pull-in pin. With this structure, when the door is closed, the retracting pin enters the groove that is a receiving portion provided on the rotating plate, presses against the housing with a predetermined pressing force, and is retracted when the door is opened by the user. The pin moves together with the door, and the rotating plate rotates to the open position to hold the position. Accordingly, since the door is released from the connection between the rotating plate and the pin, the user can freely open and close the door.

At this time, the damping means is configured to reduce the impact when the door is closed by temporarily decelerating the door before the door contacts the casing when the door is closed.

It is an external view of the refrigerator of a present Example. It is a perspective view of a door closing device. It is a perspective view of a door closing device. It is a top view of a door closing device. It is a top view of a door closing device. It is a top view of a door closing device. It is a top view of a door closing device. It is a top view of a door closing device. It is a top view of a door closing device. It is sectional drawing which shows the structure of a door closing apparatus. It is sectional drawing which shows the structure of a door closing apparatus. It is a perspective view of the door closing device of a refrigerator. It is sectional drawing which shows the structure of a door closing apparatus. It is sectional drawing which shows the structure of a door closing apparatus. It is a top view of a door closing device. It is a perspective view of a door closing device. It is a perspective view of a door closing device. It is a cross-sectional view of a refrigerator compartment. It is a figure explaining the relationship between a rotary partition and a door closing means. It is a top view of door 2R. It is AA sectional drawing of FIG. It is an external view which shows the Example of a single door type. It is an external view of the state which closed the door of the refrigerator provided with the door closing device. It is an external view of the state which opened the door of the refrigerator provided with the door closing device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Refrigerator main body, 2 ... Refrigeration room door, 3 ... Rotation fulcrum of refrigeration room door, 4 ... Vegetable room door, 5 ... Ice making room door, 6, 7 ... Freezer room door, 10 ... Door closing device, 11, 35 ... Rotating fulcrum, 12 ... Rotating plate, 13 ... Pin, 14, 36 ... Fixed pin, 15 ... Spring member, 22,34 ... Protruding part, 23 ... Abutting pin, 24 ... Abutted part, 25 ... Outer side, 26 ... inner side, 27 ... open position stopper, 28 ... retracting position stopper, 30 ... leaf spring, 31 ... packing, 32 ... rotating partition, 33 ... door pocket, 37 ... stored item, 50 ... lever part, 70 ... rotational damping Giving part, 71, 72 ... gear part.

Claims (2)

A door supported by the refrigerator body so that it can be opened and closed;
A contact member provided on the door;
A receiving portion provided in the refrigerator main body and capable of contacting or detaching from the abutting member , wherein the receiving portion abuts the abutting member and the door is closed, and the receiving portion is the contact portion. A rotating plate pivotally supported so as to be rotatable between the contact member and the disengaged open position;
A door closing device having one end on the rotating plate and the other end on an elastic member supported by the refrigerator body;
The elastic member is provided such that a position where the tension is maximum exists between the closed position and the open position,
In the vicinity of the closed position of the door, the elastic member holds the door in the closed position via the receiving portion and the contact member,
Refrigerator the door closing device in a state in which the door is open when the closed chain position, provided with a return mechanism for returning the door or the door closure device. A revolving door supported by the refrigerator main body so as to be openable and closable, a contact member provided on the revolving door, and a door closing device provided on the refrigerator main body and capable of contacting or detaching from the contact member,
A rotating plate having a spring member that holds the first position and the second position is provided on the upper surface of the refrigerator main body, and a resistance adding means for providing a rotational load resistance when the door is closed is connected to the rotating plate, and When the rotating plate is in the first position, the retracting member provided on the door side is accepted, and the rotating plate is provided with a contact portion that guides the spring member to the second position,
The door closing device includes a leaf spring that guides a retracting member provided on the door side to the abutment portion when the abutment portion is in the second position with the door open. A refrigerator characterized in that an outer side of the abutting portion is configured.

Images