KR20000034210A - Apparatus for opening door of refrigerator - Google Patents

Abstract

PURPOSE: An apparatus for opening a door of a refrigerator is provided to separate a door from a body of a refrigerator with leverage to easily open the door of the refrigerator with a small amount of force. CONSTITUTION: A door(100) of a refrigerator is installed on the front surface of a refrigerator body(1) to be opened/closed. External air is introduced into the refrigerator and shrunken rapidly to generate vacuum pressure when opening the door. A user rotates a door handle(120) in a front lower direction with a grip(121) to open the door. Thereby, a lever(123) rotates clockwise and a hanging protrusion(125) moves to the upper portion along a cut portion(112) of a rotary plate(110) to be hung to the upper end of the cut portion. The rotary plate rotates clockwise so a push plate(114) as to push the front surface of the body if the user pushes the door handle down stronger. Then, the door is separated at a certain distance and a gap is generated between the refrigerator body and a gasket(101). Therefore, the pressure inside and outside of the refrigerator is regular by introducing the external air into the refrigerator and the door is easily opened/closed.

Description

Door opening of the refrigerator

The present invention relates to a door opening device of a refrigerator, and more particularly, to open a door that separates the body of the refrigerator from the refrigerator door by the principle of a lever so that the refrigerator door can be easily opened even with a small force when opening the door of the refrigerator. It relates to a door opening device of a refrigerator equipped with a device.

In general, a refrigerator fills an insulating material such as urethane to form a storage space between a metal cabinet forming an outer mold and an inner box made of a plastic injection molding.

The storage space serves as a freezer compartment or a refrigerating compartment, for example, and maintains a low temperature by a compressor or a refrigerant cycle in the machine room.

On the other hand, the refrigerator is provided with a door that can be rotated and opened by a hinge to open and close the storage space, and a part such as a gasket, which is a means for sealing to prevent leakage of cold air, such as a freezer or a refrigerating chamber, from the door and the cabinet contacting the door The member is attached.

However, according to the general door structure of the refrigerator, when the temperature difference between the inner and outer temperature of the storage space is about 40 ° C., a normal adult can pull the door only by applying a force of 20 kg or more. There was a problem inconvenient to use.

When the refrigerator door or the freezer door is opened, cold air in the storage space and hot air from the outside cause natural convection. When the door is closed in this state, the volume of the hot air mixed in the storage space is cooled and the volume is reduced. This is because the internal air pressure becomes lower than the external air pressure so that negative pressure is generated, and the door is subjected to such negative pressure to make the closed state more firm.

Referring to Figure 1 of the Korean Utility Model Publication No. 95-20220, "Refrigerator door opening device," which has been filed and disclosed as reducing the door opening force of the refrigerator, opens and closes the refrigerator body 10 and the refrigerator body. A door 20, a gasket 30 provided between the refrigerator body and the door to closely contact the door 20, and a handle 40 provided in the door to form an operation groove 41. 51) is rotated about the center and the lower half is installed in the refrigerator main body so as to contact the gasket, the lower half is protruded from the refrigerator main body during the rotation to form a gap between the gasket and the refrigerator main body, and one side of the operation The first lever 61 protruding into the groove and the other side is embedded in the door, and one end thereof is connected to the other side of the first lever with a rotating material, and the other end is fixed to the upper part of the operating plate, and the second support in the middle thereof. Of the shaft (64) To be installed on the second lever 62, and a handle that pivots Further included is a first spring 71 for elastically supporting the first lever.

However, such a door opening device, the operation plate 50, which is rotated by the operation of the handle 40 every time the refrigerator door is opened, pushes the gasket 30 so that the gasket 30 is spaced apart from the main body of the refrigerator so As the outside air flows in through the negative pressure in the chamber to be released to facilitate the opening of the door, the frequent opening and closing of the gasket 30 is pushed to the outside by the operation plate 50 due to the opening and closing of the gasket 30 There was a problem that the shape is deformed or the gasket 30 is damaged to leak cold air.

In addition, as another example for reducing the door opening force of the refrigerator, domestic patent application No. 96-55676, "refrigerator having a rapid freezing device", which has been applied and disclosed with reference to Figure 2, the freezer door 11 A pressurizing rod 24 connected to the rear of the button 21 exposed to the outside, a spool 27 mounted via a spring 28 inside the freezer door 11, and the front of the spool 27. The packing 26 to keep the airtight in contact with the portion and the connecting link 25 for supporting each end so that the pressure rod 24 and the spool 27 to move in the opposite direction to open the door In this case, while pressing the button 21 and at the same time as the outside air flows into the air, the negative pressure is solved to facilitate the opening of the door.

However, the door opening device of such a refrigerator requires a lot of space for installing the pressure equalizer inside the door, and also requires a large number of components, which is complicated in the assembly process. At the same time pressing 21), the door handle has to be pulled forward, which leads to troublesome opening of the door.

The present invention has been made to solve the above-mentioned problems of the prior art, by using the principle of the lever to open the door to open the door integrally with the door handle so that the door can be conveniently opened Of course, the purpose is to provide a door opening device of the refrigerator that can be easily installed in the left and right doors by forming the components in a vertically symmetrical structure by the simple structure to improve the assembly and productivity.

1 is a cross-sectional view showing an operating state of the door opening device of the refrigerator according to the prior art,

2 is a cross-sectional view showing a state in which another example of a door opening of a conventional refrigerator is installed;

Figure 3 is an exploded perspective view showing a door opening device according to the present invention,

4 is a cross-sectional view showing a state in which the door opening device of the present invention operates when the door is closed;

5 is a cross-sectional view showing a state in which the door opening device of the present invention operates when the door is opened;

Explanation of symbols on the main parts of the drawings

100: door, 101: gasket,

105: fixing pin, 110: rotating plate,

112: notch, 114: pressing plate,

120: door handle, 121: handle,

124: fixing hole, 125: locking projection,

140: cover, 142: fixing protrusion.

According to the present invention, a cutout is formed at an inner edge of both ends bent in a “V” shape, and a pivot shaft is formed at a center thereof, so that one end of the both ends pushes the front of the main body of the refrigerator while rotating about the pivot shaft. The rotating plate is fixed to the shaft fixing groove formed in the upper side of the rotating plate and the locking projection inserted into the cutout of the rotating plate is formed in the rear end and the front end is formed with a handle is rotated on the same rotation axis as the rotating plate A door handle having a fixing hole formed in the center of the door handle, a fixing bracket fixed to the outside of the door handle to limit the vertical rotation angle of the door handle, and a cover to be covered to the outside of the fixing bracket. It features.

In addition, the door opening device is formed in a shape that is symmetrical up and down is characterized in that the same can be employed on the left and right sides of the refrigerator door.

Hereinafter, with reference to the accompanying drawings an embodiment of the present invention will be described in more detail.

3 is an exploded perspective view showing the door opening device according to the present invention, as shown in FIG. 3, the door 100 is installed to be opened and closed to the front of the main body of the refrigerator to be rotatable, the door 100 is Hinges are installed on the upper and lower parts and are rotatably installed by hinge shafts (not shown) fitted to the hinges.

A gasket 101 is installed at an inner side edge of the door 100 to maintain airtightness between the refrigerator main body and the door 100 of the refrigerator to prevent leakage of cold air.

A shaft fixing groove 102 is formed on one side of the upper portion of the door 100, and bolt holes are formed at regular intervals in the upper and lower portions of the shaft fixing groove 102.

The pivot plate 110 and the door handle 120 are fixed to the shaft fixing groove 102 by a fixing pin 105 so as to be rotatable up and down.

The rotating plate 110 may be formed in a “V” shape where both ends are bent so that a cutout 112 is formed inside the “V” shape and the fixing pin 105 may be inserted into one central end of the pivoting plate 110. The fixing hole 116 is formed so that.

The door handle 120 is rotatably installed by the fixing pin 105 to have the same rotation shaft as the rotation shaft of the rotation plate 110 on the side of the rotation plate 110, the door handle 120. In front of the handle 121 is formed to have a predetermined width and the rear of the handle 121, the lever 123 is extended in the horizontal direction is formed in the fixing groove 124 formed in the center of the lever 123 A fixing pin 105 is fitted to fix the door handle 120 to be rotatable.

In addition, the rear end of the lever 123 is formed with a locking projection 125 in the horizontal direction so that the locking projection 125 is inserted into the cutout 112 of the rotating plate 110 so that the door handle ( When the 120 is rotated to the front lower side of the door 100, the lever 123 is rotated around the fixing pin 105 as the center axis, and the rotating plate 110 is rotated clockwise according to the rotation of the lever 123. Will be rotated.

Thus, one end of the rotating plate 110 pushes the front of the main body of the refrigerator.

Meanwhile, both ends of the pivoting plate 110 may form a pressing plate 114 formed of a soft synthetic resin material, which may be fixed and installed by an adhesive means or a separate fixing means, which may be fixed by the rotation of the door handle 120. When the rotating plate 110 is rotated in conjunction with one end of the rotating plate 110 to push the body of the refrigerator to prevent damage to the body surface of the refrigerator.

The center plate is bent in a "c" shape to the side outside of the pivoting plate 110 and the door handle 120 fixed to the side of the door 100 by the fixing pin 105 and both ends thereof are vertically bent again. Thus, the fixing bracket 130 in which the bolt hole 133 is formed is fixed by the bolt.

The fixing bracket 130 limits the rotation angle of the fixing handle 120 when the door handle 120 rotates up and down with the fixing pin 105 as the central axis, thereby allowing the user to handle the door handle 120. When excessively rotating the upper and lower edges of the lever 123 of the door handle 120 is caught on the inner surface of the fixing bracket 130, excessive rotation of the door handle 120 and the rotating plate 110. It is to prevent.

The outside of the fixing bracket 130 is covered with a cover 140, the inner surface of the cover 140 is fixed to the fixing projections 142 at regular intervals up and down and the central portion of the fixing bracket 130 The fixing protrusion 142 is inserted into and fixed to the cover fixing hole 132 formed up and down.

In addition, a cutout 141 is formed at the front and rear sidewalls of the cover 140 so that the lever 123 of the door handle 120 and the pressing plate 114 of the pivoting plate 110 can be rotated. To form.

And the inner surface of the cover 140 is formed with a "V" shaped elastic member 145 to return to the war position after the rotation of the rotating plate (110).

Since the door opening device having such a configuration is formed in a structure in which the shape of each component constituting the door opening device is vertically symmetrical, as shown in FIG. 3, the door opening device may be installed on the left side of the refrigerator door 100. Although not shown in the door 100 by forming only one shaft fixing groove 102 and two bolt holes in the upper right side of the door 100 without the need for a separate design change for the installation of the door opening device in the door 100 The opening device can be easily installed.

Therefore, it is very easy to apply to the left and right open / close doors (e.g., doors of the refrigerator installed to selectively open the door to the right or left side at the time of assembly of the refrigerator according to the needs of the consumer). It can be.

In addition, the number of components of the door opening device is small and the size is small, there is an advantage that the assembly is very easy.

The operation and effects of the present invention having such a configuration will be described with reference to the drawings.

5 is a cross-sectional view showing a state in which the door opening device of the present invention operates when the door is opened.

As shown in FIG. 5, the door 100 of the refrigerator is rotatably installed to the front of the main body 1 of the refrigerator, and the door 100 is sealed by the gasket 101 while being closed by the gasket 101. It is in close contact with the front of the door 100 to maintain the closed state.

In this case, after the door 100 of the refrigerator is opened and closed, external warm water introduced into the refrigerator is rapidly contracted, and a negative pressure is generated. In this case, the user grabs the handle 121 to open the door 100, and the door handle 120. When rotated forward and downward, the lever 123 is rotated clockwise with the fixing pin 105 as the rotation axis, and at the same time, the locking protrusion 125 formed at the rear end of the lever 123 is the rotating plate 110. While moving upward along the cutout portion 112, the upper end of the cutout portion 112 is caught.

In this case, when the user pushes the door handle 120 downward while giving a little more force, the pivoting plate 110 rotates clockwise around the fixing pin 105 to allow the rotation of the pivoting plate 110. The lower pressing plate 114 pushes the front of the main body 1 of the refrigerator, and at the same time, the door 100 is spaced apart from the refrigerator main body 1 by a predetermined distance, and a gap is formed between the main body 1 and the gasket 101. Will occur.

Thus, as the outside air flows into the refrigerator, the pressure inside and outside the refrigerator becomes the same, and since then, the door 100 is easily opened.

That is, as the user rotates the door handle 120, the pivoting plate 110 pushes the main body 1 and a gap is generated between the main body 1 and the gasket 101 of the refrigerator. The negative pressure in the inside is released so that the door 100 can be easily opened.

Figure 4 is a cross-sectional view showing the state of the door opening device of the present invention when the door is closed, when the door handle 121 is released while closing the open door 100, the rotating plate 110 is an elastic member 145 By rotating the fixing pin 105 in the counterclockwise direction about the central axis to return to the original state and the door handle 120 and the rear end of the engaging projection 125 is located in the center of the cutout 112 It will return to the original position.

As described in detail above, the present invention has a door handle that separates the body of the refrigerator from the refrigerator door according to the principle of the lever, so that the refrigerator door can be easily opened even with a small force when the door of the refrigerator is opened. The structure is simplified to improve the assemblability, and the shape of the door opening device is symmetrical up and down, so that there is an effect that can be easily installed in the left and right opening and closing doors without changing the design in the refrigerator door.

Claims (1)

In the door opening of the refrigerator, A cutout 112 is formed inside the rim of the both ends that are symmetrically bent in a “V” shape, and a fixing hole 116 is formed at a central end thereof, and is rotated about the fixing hole 116, and one end of the both ends is formed. Rotating plate 110 is fixed to the shaft fixing groove 102 formed in the upper side of the door 100 to push the front of the main body of the additional refrigerator by the fixing pin 105, A locking protrusion 125 inserted into the cutout 112 of the pivoting plate 110 is formed at a rear end of the lever 123, and a handle 121 is formed at the front end of the lever 123. A door handle 120 having a fixing hole 124 formed in the center of the lever 123 to be rotatably installed on the same rotation shaft as the pivoting plate 110, A fixing bracket 130 fixedly installed on an outer side of the door handle 120 so as to limit a vertical rotation angle of the door handle 120; The door of the refrigerator, characterized in that the elastic member 145 which is elastically winched at the time of rotation of the pivoting plate 110 is formed inside and covered with a cover 140 which covers the outside of the fixing bracket 130. Opening device.