KR20000060145A - Opening device of door for refrigerator - Google Patents

Abstract

PURPOSE: A door operating equipment of a Kimchi refrigerator is provided to solve the impact force applied to the refrigerator. CONSTITUTION: A door operating equipment of a Kimchi refrigerator includes a door rail(32) connected with a door(30) opened and shut like a drawer for being opened and shut with the door, a door roller(34) rotatably supported by the door rail, a guiding roller(44) rotatably supported by a side wall of the inside(40) of the refrigerator and supporting the door rail, and a fixed rail(42) fixed at the side wall of the inside of the refrigerator for supporting the movement of the door roller and having a curved guiding part curved toward the lower part in the front end part, so that the door roller is guided to the curved guiding part of the fixed rail just before the door is fully opened.

Description

Opening device of door for refrigerator

The present invention relates to an opening and closing device of the door used in the kimchi-only refrigerator, and more particularly configured to maintain a stable state of the refrigerator body when the door is pulled out of the kimchi-only refrigerator stored in the drawer type, such as the kimchi storage container therein. It relates to a door opening and closing device of the refrigerator for kimchi.

The kimchi storage device recently released is configured to be able to put or take out kimchi inside the kimchi storage container by opening and closing the cover provided on the upper surface. The inside is provided with a heater to provide heat to maintain a suitable temperature when the kimchi is aged, and an evaporator for maintaining a constant low temperature state when the kimchi is stored. Therefore, after soaking kimchi for the first time, open the cover installed on the upper surface of the kimchi storage device, put kimchi in the inside, and then proceeds a certain ripening process. This ripening process is a process of maintaining a temperature suitable for the ripening of kimchi by heating the heater.

In this way, when the aging process of kimchi is completed, an evaporator installed in the evaporator is operated to store the kimchi. This storage process refers to a process of continuously maintaining an appropriate temperature for kimchi storage by keeping the evaporator at a low temperature using a freezing cycle.

In such a general kimchi storage device, since the cover is installed on the upper surface, the user's operation becomes very inconvenient. In other words, because all the operation to put in or take out kimchi must be bowed, the inconvenience of use is followed.

In order to solve this disadvantage, Korean Patent Publication 96-4503 discloses a refrigerator characterizing a storage space of kimchi, and FIG. 1 illustrates such a refrigerator. As shown, a refrigerator having a kimchi storage function is divided into a freezer compartment (2) and a refrigerating compartment (4), and the heaters (2a, 4a) used for ripening and storing kimchi therein, Blowing members 2b and 4b for circulating heat are provided. Therefore, at the time of ripening of kimchi, the heat generated from the heaters 2a and 4a is circulated inside the freezer compartment 2 and the refrigerating compartment 4 by the blowing members 2b and 4b so as to be relatively hot. Will be maintained.

And although not shown, the evaporator for maintaining the low temperature during the storage of kimchi is installed in the freezer compartment and the refrigerating compartment, respectively. The selective supply of the refrigerant from the freezing cycle to the pair of evaporators installed in the freezer compartment and the refrigerating compartment is controlled by a solenoid valve. In other words, if it is necessary to supply cold air to the refrigerating compartment, the solenoid valve is used to guide the circulation path of the refrigerant in the refrigerating cycle to the refrigerating chamber evaporator. To the evaporator side. That is, according to the prior art, it can be seen that a separate component called a solenoid valve is used as well as a complicated refrigerant pipe to supply cold air to the freezing compartment and the refrigerating compartment.

Such a conventional kimchi refrigerator is substantially the same as the structure of a conventional refrigerator, but it can be seen that a heater is added, and moreover, there is a drawback of not having sufficient functions as a refrigerator for kimchi. .

In order to solve such a disadvantage, the kimchi refrigerator as shown in Figure 2 has been proposed by the present application.

That is, according to the refrigerator for kimchi proposed by the present applicant, as shown in FIG. 2, the first chamber 12 and the second chamber 14 divided up and down by the insulating barrier 10 are provided. On the bottom of each of the first chamber 12 and the second chamber 14, heaters 12b and 14b are provided in order to supply the amount of heat required for ripening the kimchi. Therefore, the heat of the heaters 12b and 14b is transferred to the kimchi reservoirs 12a and 14a which are opened and closed by a drawer type inside the first chamber 12 and the second chamber 14, thereby ripening the kimchi. It is possible to maintain a high temperature state.

In addition, evaporators 12c and 14c are installed on the rear surfaces of the first chamber 12 and the second chamber 14, and are configured to maintain a low temperature state for storage of aged kimchi.

The drawing out structure of the door in the kimchi-only refrigerator is shown in FIG. 3. As shown, the kimchi storage 12a is configured to be drawn out like the door 20. That is, the door rail 22 is extended behind the door 20, and the kimchi storage 12a is coupled to the door rail 22. When the door 20 is opened, the kimchi storage 12a is opened. It is also configured to be withdrawn in the future.

The door rails 22 are provided on both side surfaces of the door 20, and the door rollers 22a are rotatably installed at the rear ends of the door rails 22, respectively. The door roller 22a is supported by guide rails 24 provided on both side walls 21 of the chamber 12. And the support roller 24a is provided in the front part of the both side wall 21 of the said chamber 12, respectively.

The door rail 22 and the guide rail 24 are formed in a U-shape facing each other, so that the door roller 22a and the support roller 24a are respectively supported in a state of being housed therein. That is, the door roller 22a provided in the rear end of the door rail 22 is supported in the state accommodated in the guide rail 24 provided in the both side wall 21 of the chamber 12. As shown in FIG. Accordingly, when the door 20 is pulled or pushed, the door roller 22a moves while contacting the upper or lower surface of the guide rail 24 to rotate. And the support roller 24a is rotatably supported in the state which contacted the inner upper surface of the door rail 22 in the state accommodated in the door rail 22. As shown in FIG.

Therefore, when the door is opened, the door roller 22a provided in the door rail 22 supports the door drawn out while rotating inside the guide rail 24. The support roller 24a supports the door rail 22 so that the door rail 22 can be pulled forward at a predetermined position.

In the Kimchi-only refrigerator having the above configuration, the kimchi is stored inside the kimchi storage 12a in a state where it is stored, and is kept in a low temperature state or aged in the chamber 12. Therefore, when the user wants to take out the kimchi, the kimchi storage 12a is pulled out like the door by pulling the door 20.

However, since the kimchi stored in the kimchi storage 12a has a heavy load as a whole, when the door 20 is completely pulled forward, there is an inconvenience in use that the load of the kimchi-only refrigerator is directed forward. That is, since the center of the kimchi storage 12a is located in front of the refrigerator itself in the state in which the door 20 is open, in particular, in the state where the upper door is opened, it becomes an unstable state. In addition, in the process of opening the door 20, the moment the door 20 is pulled out to the maximum stop the refrigerator main body receives an impact load by the opening operation of the door 20. Such an impact load may cause the refrigerator to tilt forward or, in severe cases, to cause the refrigerator to fall forward. In fact, the dynamic load (impact load) applied to the refrigerator main body by the door at the time of maximum withdrawal of the door 20 acts at least twice as much force as the static load. It will not keep you stable.

It is an object of the present invention to provide a kimchi-only refrigerator that can maintain a stable state without the inclination or fall of the refrigerator even when the door is pulled out of the refrigerator-type kimchi-only refrigerator which pulls out the inside of the kimchi storage as the door.

Such an object of the present invention may be achieved by preventing an impact applied to the refrigerator main body by stopping the door at the moment when the door is completely pulled forward. In addition, the present invention focuses on preventing the door from stopping momentarily in the final process of completely pulling out the door so that the impact force is not transmitted to the refrigerator main body.

1 is a cross-sectional view showing the configuration of a conventional kimchi refrigerator.

Figure 2 is a cross-sectional view showing the configuration of another conventional kimchi refrigerator.

3 is a cross-sectional view showing a conventional door extraction structure.

Figure 4 is a cross-sectional view showing a door pull out structure according to the present invention.

5 is a cross-sectional view showing a door withdrawal structure according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

30 ..... Door 32 ..... Door rail

34 ..... Door roller 40 ..... Inner side wall

42 ..... Fixed Rail 44 ..... Guide Roller

The door opening and closing device of the kimchi refrigerator according to the present invention for achieving the above object is connected to the door that is stored in the drawer type door rail that is received as a door; A door roller rotatably supported by the door rail; A guide roller rotatably supported on a side wall of the refrigerator and supporting the door rail; And a fixing rail fixed to a side wall of the refrigerator to support movement of the door roller and having a curved guide portion curved downward at the front end thereof.

Therefore, according to the present invention, just before the door is completely opened, the door roller is guided to the curved guide portion of the fixed rail, and configured to stop smoothly, so as to prevent the impact on the main body when the door is completely opened. The convenience which can be used in a stable state is anticipated.

Next, the present invention will be described in more detail with reference to the embodiments shown in the drawings.

4 shows the relationship between the door 30 on which the door rail 32 is mounted and the guide rail 42 fixed to the inner side wall 40 of the chamber. The configuration according to the present invention and the door 30 are opened. The process is shown. Although only one side of each of the door rail 32 and the guide rail 42 is illustrated, the door rail 32 and the guide rail 42 are installed in substantially the same form on both sides of the door 30.

As shown, the door rail 32 is spoken to the door 30. The door roller 34 is rotatably supported by the rear end of the door rail 32. The door roller 34 is housed inside the fixed rail 42. That is, the fixed rail has a cross-section of a c-shape, and the door roller 34 is located inside thereof, and as the door 30 is opened and closed, the door roller 34 is an upper surface of the fixed rail 42. Alternatively, the door rail 32 is supported while being in contact with the lower surface.

And the guide roller 44 is rotatably supported by the front part of the fixed rail 42 fixed to the inner side wall 40 of the chamber. The guide roller 44 is accommodated in the U-shaped door rail 32 opened to the outside, and in contact with the door rail 32, to support the opening and closing of the door 30.

According to the present invention, the curved guide portion 46 bent downward is molded on the lower surface of the front end of the fixed rail 42. The curved guide portion 46 is a part that performs a function of guiding the door roller 34 moving forward and backward along the inside of the fixed rail 42 slightly downward. Therefore, when the door roller 34 installed in the door rail 32 is pulled out while rotating forward along the inside of the fixed rail 42 according to the operation of opening the door 30, and reaches the curved guide 46. The door roller 34 will slightly sag downward along the curved guide.

The curved guide portion 46 is formed at the front end of the fixed rail 42. Therefore, entering the door roller 34 into the curved guide part 46 will be a time point at which the door 30 is almost opened, which means that this time point is just before the door 30 is completely opened. do. Therefore, the door roller 34 will enter the curved guide 46 at the moment just before the door 30 is completely opened and stopped.

Next, the opening and closing operation of the door 30 according to the present invention will be described with reference to FIG. 4.

When the door 30 starts to open, it is in the state as shown to (a). That is, when drawing is started by the user grasping the door 30 and pulling it forward, the door roller 34 fixed to the door rail 32 is fixed to the inner side wall 40 of the chamber 42. Will begin to withdraw along the inside. At this time, the door rail 32 is being supported by the guide roller 44.

When the door 30 at which drawing is started is almost drawn out, that is, just before being pulled out completely and the door stops, the door roller 34 is guided to the curved guide portion 42 of the fixed rail 42. When the door roller 34 is guided to the curved guide portion 42, the door roller 34 substantially sags downward along the curved guide portion 46. At this time, since the front portion of the door rail 32 is being supported at the same height by the guide roller 44, the door rail 32 is substantially so as to have an inclination angle α as shown. Will tilt.

And the door roller 34 is moved along the curved guide 46, so that the door rail 32 has a constant inclination angle (α) as described above, is just before the door 30 is completely opened. . Therefore, the door is constantly drawn out in the horizontal direction, and the curved guide 46 causes the door rail 32 to have a constant inclination angle, and this moment can be seen that the moment immediately before the door 30 is completely opened.

In the process of opening the door 30 by the user, if the door 30 has a slight inclination in this way, the operation of opening the door 30 becomes more difficult than the process of normally drawing out along the horizontal state. That is, when the door is initially opened by applying force, the door is opened in the horizontal direction while the force acts on the door 30 in a constant horizontal direction. However, when the door is inclined by the curved guide part 46 as described above. More power is needed to draw out the door. In practice, however, when the user almost completely opens the door, the force to open the door is generally weak, so that the door 30 is no longer pulled out while the door has such an inclination. In this state, making the door 30 more difficult to open means that the door is completely opened so that it is difficult to impact the refrigerator main body.

Therefore, according to the present invention, it is known that the curved guide portion 46 installed on the fixed rail 42 has a structure in which the door can be temporarily and smoothly stopped just before the door is completely opened. Can be.

Next, another embodiment of the present invention will be described with reference to FIG. 5. In the following description of the second embodiment, the same components will be described with the same reference numerals. While the first embodiment described above forms the curved guide portion in the fixed rail 42, the present embodiment forms the inclined guide portion 36 in the door rail 32, whereby the door 30 is maximized. It is a technical point to configure so that it may stop smoothly before drawing out.

As shown in the drawing, the inclined guide portion 36 is formed at the rear of the door rail 32 connected to the door 30 so as to be gently inclined downward. In this embodiment, the fixed rail 42 is implemented in a completely straight shape, and the fixed rail 42 is in contact with the door roller 34 installed at the rear end of the door rail 32. It is configured to rotate while moving.

Next, the operation according to the present embodiment will be described. As shown in FIG. 5A, when the door 30 of the refrigerator is closed, the upper end of the door rail 32 extends to the guide rollers 44 supported on both side walls 40 of the refrigerator. It is supported in a state. At the same time, the door rail 34 is supported in a state in which it is accommodated in the fixed rail 42 fixed to both side walls 40.

In this state, when the user pulls the door 30 open, the door roller 34 is rolled forward along the fixed rail 42, and at the same time the door rail 32 is also guided by the guide roller 44. It is pulled forward in a supported state.

As the drawing process proceeds, the inclined guide portion 36 of the door rail 32 approaches the guide roller 44, and when the door 30 is almost drawn out, the guide roller 44 is inclined guide portion ( 36). From the moment when the guide roller 44 starts to contact the inclined guide portion 36, the door rail 32 is substantially lifted upward by the inclination angle of the inclined guide portion 36 of the door rail 32. do. That is, since the door rail 32 drawn forward like the door 30 has to rise upward by the inclination angle of the inclination guide part 36 formed in the door rail 32, the door 30 is substantially And kimchi storage (not shown) assembled in a state spanning the door ale 32 will also have to move upward as well.

Therefore, in the drawing process of opening the door 30, when the door 30 is almost withdrawn, the door 30, the door rail 32, and the door rail 32 by the inclined guide portion 36 Kimchi storage is lifted over a certain interval. In this case, the inclination angle of the inclination guide part 36 is raised upward slowly.

Therefore, in order to substantially pull out the door 30, the user must lift the door 30 and the door rail 32 and the kimchi storage supported by the door rail upwards at a predetermined interval. You must pull 30.

According to this embodiment, since the door 30 must be lifted upwards from the moment when the door 30 is almost taken out, the user must pull the door with greater force. And because of the inclination angle of the inclined guide portion 36, since the door 30 slowly rises upwards, the door 30 is stopped smoothly unless the user applies more force.

Therefore, according to the present embodiment, when the door is pulled out, the door is opened to the maximum and the shock applied to the refrigerator main body can be eliminated, and the fall of the refrigerator can be prevented and the shock applied to the refrigerator itself can be eliminated. Able to know.

According to the present invention as described above, it can be seen that the door 30 is provided with a device capable of temporarily and smoothly stopping immediately before being completely drawn out. Therefore, it is possible to relieve the impact force acting on the refrigerator main body by the door at the moment when the door is completely opened, it is possible to prevent the refrigerator from shaking or moving forward when the door is pulled out. That is, according to the present invention, there is a convenience in use that enables the refrigerator to be supported in a stable state when the door is drawn out in a drawer type.

Claims (2)

A door rail connected to the door accommodated in the drawer type and stored together with the door; A door roller rotatably supported by the door rail; A guide roller rotatably supported on a side wall of the refrigerator and supporting the door rail; And A fixing rail fixed to a side wall of the refrigerator to support the movement of the door roller and having a curved guide portion bent downward at a front end thereof; Just before the door is completely opened, the door opening and closing device of the refrigerator for kimchi, characterized in that the door roller is guided to the curved guide of the fixed rail. A door rail connected to the door to be stored in a drawer type and stored together with the door and having an inclined guide part inclined downward toward the rear at a rear end thereof; A door roller rotatably supported by the door rail; A guide roller rotatably supported on a side wall of the refrigerator and supporting the door rail; And A fixing rail fixed to a side wall of the refrigerator to support movement of the door roller; Just before the door is completely opened, the door opening and closing device of the refrigerator for kimchi, characterized in that the guide roller is in contact with the inclined guide of the door rail.