KR20110054669A - Door supporting device - Google Patents

Abstract

PURPOSE: A device for supporting door is provided to simply open and close a door by using an elastic member and a pressing link. CONSTITUTION: A device for supporting door comprises a pressurizing link and an elastic member. The pressurizing link is connected in the circulation of a door(5) for selectively opening and closing a cavity(2). The pressurizing link moves cross a front side of the cavity while forming a trace. The elastic member is pressurized by the pressurizing link. The elastic member gives the door the elastic force of rotation direction for opening the cavity, when the cavity is open.

Description

Door supporting device

The present invention relates to a cooking appliance, and more particularly, to a door support device for a cooking appliance for supporting a pull-up door.

A cooking appliance is a home appliance that cooks food using gas or electricity. Such a cooking apparatus includes a cooking chamber in which food is cooked, and the cooking chamber is selectively opened and closed by a door.

The door generally opens and closes the cooking compartment in a side-swing, pull-down, or pull-up manner. The side swing swing door is rotated at the other end about one end thereof to open and close the cooking chamber. In addition, the pull-down door has an upper end pivoting up and down about its lower end to open and close the cooking compartment, and the pull-up door has a lower end pivoting up and down about its upper end to open the cooking compartment. Open and close.

On the other hand, in the pull-up door, in the state in which the cooking chamber is open, the door is rotated by its own weight to prevent the cooking chamber from being shielded. Cam hinges that impart an elastic force of and / or gas springs that support the door in the state in which the cooking chamber is opened are used.

It is an object of the present invention to provide a door support device which is configured to open and close a door in a simpler pull-up manner.

The door support device according to an embodiment of the present invention for achieving the above object, in the door support device for supporting the door for opening and closing the cooking compartment provided in the cavity in a pull-up manner: the opening for selectively opening and closing the cooking compartment A pressure link unit moving through the front surface of the cavity while forming a predetermined trajectory in association with the rotation of the door; And the door is pressurized by the pressure link unit, and when the cooking chamber is open, the door is provided with an elastic force in a direction in which the door rotates to open the cooking chamber, and the door is closed when the cooking chamber is shielded. An elastic member for imparting an elastic force to the door in a rotational direction to shield the cooking chamber; It includes.

According to the present invention, there is an advantage that the door can be opened and closed with a simpler configuration.

Hereinafter, with reference to the accompanying drawings an embodiment of a cooking appliance according to the present invention will be described in detail.

1 is a perspective view showing an embodiment of a door supporting apparatus according to the present invention, Figure 2 is a longitudinal sectional view showing the main part of the embodiment according to the present invention.

First, referring to FIG. 1, the cooking chamber 2 is provided inside the cooking appliance main body 1. The cooking chamber 2 is a place where food is cooked.

On the other hand, first through slots 4 are formed at both upper end portions of the front plate 3 forming the front surface of the main body 1, respectively (see FIG. 2). A portion of both upper end portions of (3) is formed by cutting in the vertical direction. The first through slot 4 is a place through which the link link portion 40 and the pressure link portion 50 to be described later.

The door 5 selectively opens and closes the cooking chamber 2. The door 5 opens and closes the cooking chamber 2 in a pull-up manner in which a lower end pivots up and down about its upper end.

A door handle 7 is provided on the front of the door 5. The door handle 7 is provided below the front surface of the door 5. The door handle 7 is a part held by the user for the rotation of the door 5.

On the other hand, the door support device is provided to support the door (5) rotatably with respect to the main body (1). In addition, the door support device, the door 5 is opened, that is, the cooking chamber 2 is open, the door 5 is arbitrarily closed, or the door 5 is closed, that is, the cooking chamber ( In the shielded state of 2) also serves to prevent the door 5 to open arbitrarily. Referring to FIG. 2, the door support device includes a door bracket 10, first and second hinge brackets 20 and 30, a connection link part 40, a pressure link part 50, and an elastic member 60. ) And a link linking unit 70.

The door brackets 10 are respectively fixed to both side ends of the door frame 9 provided in the door 5. The door bracket 10 has a U-shaped cross section that is opened toward the rear of the door bracket 10, and is provided at both side ends of the door frame 9 vertically long. However, a portion of the front surface of the door bracket 10 is deleted at the portion where the pressure link unit 50 penetrates.

The door bracket 10 is provided with two fixing pins 11 and 12, respectively. The fixing pins 11 and 12 are positioned to be spaced apart by a predetermined distance in the up and down direction inside the door bracket 10. And both ends of the fixing pin (11, 12) is fixed to both sides of the inside of the door bracket 10, substantially extending in the horizontal direction inside the door bracket (10).

In addition, the first hinge bracket 20 has a U-shaped cross section that is opened toward the front. The door bracket 10 is supported by the first hinge bracket 20. At this time, the first hinge bracket 20 is substantially located inside the door bracket 10. In addition, both side surfaces of the first hinge bracket 20 are positioned or in close contact with both side surfaces of the door bracket 10.

The first hinge bracket 20 is provided with two fixing slots 21 and 22. The fixing slots 21 and 22 are formed by cutting both side surfaces of the first hinge bracket 20 so as to be opened upward. In addition, the fixing pins 11 and 12 are caught by the fixing slots 21 and 22, so that the first hinge bracket 20 is fixed to the door bracket 10.

Similarly to the door bracket 10 and the first hinge bracket 20, the second hinge bracket 30 also has a U-shaped cross section that is opened toward the rear. The second hinge bracket 30 is fixed to both side ends of the rear surface of the front plate 3.

A second through slot 31 is formed in the second hinge bracket 30. The second through slot 31 is formed to communicate with the first through slot 4 in the front and rear. The second through slot 31 is formed by cutting a portion of the front surface of the second hinge bracket 30 vertically.

In addition, the second hinge bracket 30 is provided with two guide pins 33 and 34. The guide pins 33 and 34 extend in the horizontal direction and both ends thereof are fixed to both sides of the second hinge bracket 30. The guide pins 33 and 34 are preferably spaced apart from each other in the vertical direction.

And the fixing roller 35 is installed in the second hinge bracket (30). The fixed roller 35 is installed in the second hinge bracket 30 corresponding to the rear of the second through slot 31. And the fixed roller 35 is rotated about the rotating shaft 36 in the horizontal direction. On the outer circumferential surface of the fixed roller 35, the upper end of the pressure link unit 50 to be described later is supported.

The link portion 40 connects the first and second hinge brackets 20 and 30. More specifically, the connecting link portion 40, the rear end is fixed to the second hinge bracket 30, through the first and second through slots (4) (31) through the front It extends forward of the plate 3.

The front end of the connecting link portion 40 extending through the first and second through slots 4 and 31 and extending forward of the front plate 3 is hinged to the first hinge bracket 20. It is connected by a pin 41. The hinge pins 41 substantially penetrate both side surfaces of the first hinge bracket 20 and the connection link unit 40. The hinge pin 41 is the pivot center of the door 5. In other words, the door 5 rotates around the hinge pin 41 in a pull-up manner.

Meanwhile, the front end of the pressure link unit 50 is fixed to the first hinge bracket 20. The pressure link unit 50 passes through the first and second through slots 4 and 31 so as to form a predetermined trajectory when the door 5 rotates around the hinge pin 41. Move back and forth in the state. And the upper end of the pressure link unit 50 is in close contact with the outer peripheral surface of the fixed roller 35.

More specifically, the pressing link unit 50 extends to the rear of the door 5 in a state where the tip thereof is fixed to the first hinge bracket 20. At least a part of the pressure link part 50 is positioned inside the main body 1 through the first and second through slots 4 and 31 regardless of the rotation of the door 5. .

The pressure link unit 50 includes a first pressure unit 51, a second pressure unit 53, and a transformer point 55. In more detail, the first pressing part 51 extends to the rear of the door 5 with its front end fixed to the first hinge bracket 20. The second pressing part 53 extends rearward of the door 5 at the rear end of the first pressing part 51. The first pressing part 51 and the second pressing part 53 are curved at a predetermined curvature. The transformer point 55 is located at the boundary between the first and second pressing parts 51 and 53.

The first and second pressing parts 51 and 53 and the transformer point 55 are elastic members to be described later in the process of moving the pressure link part 50 by the rotation of the door 5. 60). At this time, the first pressing unit 51 is to press the elastic member 60 in the direction in which the door 5 is opened (or closed) in the state in which the cooking chamber 2 is shielded (or opened). Is increased (decreased). The second pressing part 53 presses the elastic member 60 in a direction in which the door 5 is opened (or closed) in a state in which the cooking chamber 2 is shielded (or in an open state). Decreases (increases). In addition, the transformer point 55 presses the elastic member 60 to the maximum in the direction in which the door 5 is opened and closed.

In other words, the pressing of the elastic member 60 by the pressure link unit 50 is gradually increased by the first pressing unit 51 in the process of opening the door 5, the pressure point ( 55) and gradually decrease by the second pressing part 53 again. In addition, in the process of closing the door 5, the pressure of the elastic member 60 by the pressure link unit 50 is gradually increased by the second pressing unit 53, the pressure point 55 At the maximum, and is gradually reduced by the first pressing portion (51).

In other words, when the door 5 is opened while the cooking chamber 2 is shielded, the trajectory of the first pressing unit 51 according to the movement of the pressure link unit 50 will be described later. The range overlapping with the linkage 70 may be increased, and the range of overlapping with the link linkage 70 may be reduced in the trajectory of the second pressing part 53. On the contrary, when the door 5 is closed while the cooking chamber 2 is open, the trajectory of the second pressing unit 53 according to the movement of the pressure link unit 50 may be described in detail. 70 and the overlapping range is increased, the trajectory of the first pressing unit 51 may be said to decrease the overlapping range with the link linkage (70). In addition, regardless of the opening and closing of the door 5, the range in which the trajectory according to the movement of the pressure link unit 50 overlaps with the link linking unit 70 may be the maximum at the transformer point 55. have.

In the present embodiment, the thicknesses of the first and second pressing parts 51 and 53 are gradually reduced about the transformer point 55, and the pressure point 55 is connected to the pressure link part ( 50) By forming the inflection point with respect to the whole, as described above, the pressing of the elastic member 60 by the pressure link unit 50 is made.

The elastic member 60, the inside of the second hinge bracket 30, more specifically, the lower side of the pressing link portion 50 passing through the first and second through slots (4) (31). It is installed on the lower portion of the second hinge bracket 30 corresponding to the. The elastic member 60 serves to impart an elastic force to the door 5.

More specifically, the elastic member 60 is a state in which the door 5 shields the cooking chamber 2 when the door 5 is closed, that is, the cooking chamber 2 is shielded. In order to hold | maintain, the elastic force in the rotating direction is provided to the said door 5. When the door 5 is opened, that is, in the state in which the cooking chamber 2 is opened, the elastic member 60 is rotated to maintain the state in which the door 5 opens the cooking chamber 2. An elastic force in the direction to be given is applied to the door 5. In addition, the elastic member 60, the position between the process of opening and closing the door 5, that is, the cooking chamber 2, the position between the fully open state or the closed state of the door (5) In this case, the elastic member 60, the door 5 is based on a predetermined position (actually, the position where the transformer point 55 presses the elastic member 60) the door. An elastic force in the opening or closing direction of (5) is applied to the door 5.

In other words, the elastic member 60 is substantially non-pressurized or pressurized by the pressure link unit 50 that moves in accordance with the opening and closing of the door 5 to impart an elastic force to the door 5. You can also Substantially, the elastic force of the elastic member 60 acting on the door 5 when the door 5 is opened, closed, or opened or closed is not changed in direction, but the direction of the door 5 It can be said that the rotation of the elastic member 60 by the pressing link unit 50 in the rotation process and the degree of pressing, that is due to the difference between the compression of the elastic member 60 and the compression force.

In this embodiment, a coil spring having a predetermined length may be used as the elastic member 60. And fixing members 61 and 63 are provided at the lower and upper ends of the elastic member 60, respectively. The fixing member 61 of the lower end of the elastic member 60 is fixed to the second hinge bracket (30). And the fixing member 63 of the upper end of the elastic member 60 is fixed to the link linking portion (70).

The link linkage 70 is located inside the second hinge bracket 30. In more detail, the link interlocking part 70 corresponds to the pressure link part 50 and the elastic member 60 passing through the first and second through slots 4 and 31. It is located inside the second hinge bracket (30).

The link interlocking portion 70 also has a U-shaped cross section that opens toward the rear substantially. The link linkage unit 70 substantially presses the elastic member 60 while moving up and down in association with the movement of the pressure link unit 50 according to the rotation of the door 5.

To this end, the link interlocking portion 70 is provided with guide slots 71 and 72. The guide slots 71 and 72 are formed by cutting both side surfaces of the link interlocking portion 70. In addition, the guide pins 33 and 34 are positioned on the guide slots 71 and 72 to guide the movement of the link interlocking part 70 linked to the pressure link part 50.

In addition, the link linking unit 70 is provided with a moving roller (73). The moving roller 73, by moving the link linking portion 70 in the vertical direction, by rolling along the inside of the front surface of the second hinge bracket 30, the movement of the link linking portion 70 To guide. To this end, the movable roller 73 is rotatably installed on the link interlocking portion 70 about the pivot shaft 74 in the horizontal direction. In addition, the lower end of the pressing link unit 50 is supported on the outer circumferential surface of the moving roller 73.

Therefore, in the present embodiment, it can be said that the link interlocking portion 70 moves up and down by the thickness difference of the pressing link portion 50. More specifically, the link interlocking part 70 moves up and down by a distance corresponding to the difference between the smallest thickness in the first and second pressing parts 51 and 53 and the thickness of the transformer point 55. While moving to, the elastic member 60 will be pressed.

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

3 to 4 is a longitudinal sectional view showing the opening and closing process of the door in the embodiment of the door supporting apparatus according to the present invention.

First, as shown in FIG. 2, in the state in which the door 5 shields the cooking chamber 2, that is, in the state in which the door 5 is closed, the pressing link unit 50 and the first pressing unit 51 are substantially. Is positioned between the fixed roller 35 and the moving roller 73. Therefore, the elastic member 60 is pressed and compressed in a state in which the link interlocking portion 70 is moved downward by the first pressing portion 51.

As the elastic member 60 is compressed in this manner, the elastic force of the elastic member 60 upward acts on the pressure link unit 50. However, since the pressure link unit 50 is formed in a fan shape curved at a predetermined curvature, the elastic force of the elastic member 60 substantially acting on the pressure link unit 50 is such that the door 5 is closed. It can be called a direction.

Next, referring to FIG. 3, when the user grips the door handle 7 (see FIG. 1) and applies a force in the direction in which the door 5 is opened to the door 5, the door 5 Rotates around the hinge pin (41). And by the rotation of the door 5, the pressing link portion 50 is moved, the thickness of the first pressing portion 51 which is located between the fixed roller 35 and the moving roller 73. As is increased, the pressure of the elastic member 60 by the first pressing unit 51 is substantially increased.

Accordingly, the elastic force in the direction in which the door 5 is closed by the elastic member 60 acts on the pressure link unit 50. In addition, the elastic force of the elastic member 60 acting on the pressure link unit 50 in the direction in which the door 5 is closed is gradually increased.

In order to overcome the elastic force of the elastic member 60 acting on the pressure link unit 50, the force in the direction in which the door 5 is opened must be continuously applied to the door 5. Therefore, no force is applied to the door 5 in the direction in which the door 5 is opened, or the force applied to the door 5 in the direction in which the door 5 is opened is the pressure link unit 50. When less than the elastic force of the elastic member 60 acting on), the door 5 will be closed.

Referring to FIG. 4, the pressure link unit 50 is moved by the continuous rotation of the door 5 so that the transformer point 55 is positioned between the fixed roller 35 and the moving roller 73. The elastic force in the direction in which the door 5 is closed continues to act on the pressure link unit 50 until the elastic member 60 is pressed by the transformer point 55. However, when the pressure link unit 50 is moved by the rotation of the door 5, the second pressure unit 53 passes between the fixed roller 35 and the moving roller 73 beyond the transformer point 55. Is located in.

Therefore, when the elastic member 60 is pressed by the second pressing part 53, the elastic force of the elastic member 60 is applied to the pressure link part 50 in the direction in which the door 5 is opened. do. As such, the elastic force of the elastic member 60 in the direction in which the door 5 is opened acts on the pressure link unit 50, so that the force required for the user to open the door 5 can be reduced. do.

As the door 5 rotates, the pressing of the elastic member 60 by the second pressing part 53 is gradually reduced. Therefore, the elastic force of the elastic member 60 acting on the pressure link unit 50 in the direction in which the door 5 is closed is gradually reduced.

Meanwhile, referring to FIG. 6, when the door 5 continues to rotate, the cooking chamber 2 is completely opened. Even in such a state, the elastic link of the elastic member 60 in the direction in which the door 5 is opened continues to the pressure link unit 50. Accordingly, unless the external force in the direction of closing the door 5 exceeding the external force of the elastic member 60 acting on the pressure link unit 50 does not act on the door 5, the door 5 is It does not rotate arbitrarily.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the above teachings. will be.

In the door supporting apparatus according to the present invention, the door is opened or closed by the elastic force of the elastic member, or the elastic force of the elastic member acts on the door in the direction in which the door is opened or the door is closed, The opening and closing operation of the door can be made efficiently. Therefore, it is possible to expect the effect that the operation of the pull-up door can be made efficiently with a simpler configuration.

1 is a perspective view showing an embodiment of a door support device according to the present invention.

Figure 2 is a longitudinal sectional view showing the main part of the embodiment according to the present invention.

3 and 4 are longitudinal cross-sectional view showing the opening and closing process of the door in the embodiment of the door supporting apparatus according to the present invention.

Claims (9)

In the door support device for supporting the door that opens and closes the cooking chamber provided in the cavity in a pull-up manner: A pressure link unit moving through the front surface of the cavity while forming a predetermined trajectory in association with the rotation of the door for selectively opening and closing the cooking chamber; And When the pressing chamber is pressed by the pressure link unit, and the cooking chamber is opened, the door is provided with an elastic force in a direction in which the door rotates to open the cooking chamber, and when the cooking chamber is shielded, the door is the cooking chamber. An elastic member for imparting an elastic force in the rotating direction to shield the door; Door support device comprising a. The method of claim 1, The resilient member may be configured such that the door is rotated in a state in which the door is rotated by an angle smaller than the reference position with respect to the upper end of the door based on any position of the rotational trajectory of the door rotating to open and close the cooking chamber. The door is provided with an elastic force in a rotational direction to shield the cooking chamber, and the door rotates to open the cooking chamber in a state where the door is rotated by an angle larger than the reference position with respect to the upper end thereof. A door support device for applying an elastic force in the direction to the door. The method of claim 2, The pressing link unit, the door support device having a maximum thickness at the portion for pressing the elastic member in the state that the door is located in the reference position. The method of claim 2, The pressure link unit, A transformer point for pressing the elastic member when the door is located at the reference position; A first pressing unit which presses the elastic member when the door is rotated by an angle smaller than the reference position; And A second pressing unit which presses the elastic member when the door is rotated by an angle greater than the reference position; Door support device comprising a. The method of claim 4, wherein The pressing amount of the elastic member by the pressure point is greater than the pressing amount of the elastic member by the first and second pressing portion. The method of claim 4, wherein The pressing force of the elastic member by the first pressing unit is increased as the rotation angle of the door is increased based on the shielded cooking chamber. The method of claim 4, wherein The pressing force of the elastic member by the second pressing portion is reduced as the rotation angle of the door is increased based on the shielded cooking chamber. The method of claim 1, The door support device provided on both sides of the door, further comprising a door bracket to which the pressure link unit is fixed. The method of claim 1, And a link interlocking portion moving by the pressing link portion moving along the rotation of the door to press the elastic member.

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