JP2001272044A - High-frequency heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily open or close a door that opens upward in a high-frequency heating device. SOLUTION: A high-frequency heating cooker 1 is installed near a suspension cupboard 3. The door 6 mounted to the front opening in the heating chamber 5 of a case 4 in such a manner that the door can be opened or closed in a form that the door opens upward is provided with opening/closing-assisting means 10 and 15 that perform energization in a form for lifting up a door 6 when the opening angle of the door 6 reaches a specific angle or higher, and at the same time performs energization in a form for pushing down the door 6 when the opening angle reaches less than a required opening. Thus opening/closing operation can be performed with light force since the opening/ closing operation is assisted when the door 6 is to be opened or closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to various types of high-frequency heating devices, such as a microwave oven installed near a closet.

[0002]

2. Description of the Related Art Conventionally, from the viewpoint of effectively utilizing the space above a cooking stove such as a gas stove, a microwave oven is sometimes installed in a hanging cabinet above the cooking stove.

[0003]

A microwave oven as described above is often in a horizontally long shape because the vertical dimension is required to be as small as possible, so that the heating chamber is opened and closed. If the door for opening and closing is opened and closed horizontally, it can be said that workability during cooking is poor, for example, the door is obstructed during opening and closing operations.

[0004] On the other hand, it is considered that the door is opened upward and downward to open and close. However, it is pointed out that the door is difficult to open and close due to the weight of the door when the door is opened upward. There is room for improvement here.

In view of such circumstances, an object of the present invention is to make it possible to easily open and close a top-opening door in a high-frequency heating device.

[0006]

A first high-frequency heating apparatus according to the present invention is installed near a hanging cabinet, and a door is attached to a front opening of a heating chamber of a case so as to be openable and closable in an upward opening manner. When the opening angle of the door is equal to or greater than a required angle, the door is urged in a form of lifting the door upward, while when the opening angle of the door is less than the required opening, the door is provided with an opening / closing auxiliary means for biasing the door downward. Are characterized by

[0007] The second high-frequency heating apparatus of the present invention comprises the first high-frequency heating apparatus.
Wherein the opening and closing assisting means has a balancer which is attached to the tilting fulcrum portion of the door in a form that is balanced when the opening angle of the door is at a required angle.

The third high-frequency heating apparatus according to the present invention is characterized in that
Alternatively, in the second configuration, the opening / closing auxiliary means may include a door that is tilted on a straight line having one end locked to the case and the other end locked to the door, and connecting the one end locking point and the other end locking point. When the fulcrum intersects, the door is extended to its maximum and becomes a neutral state in which no resilient urging force is applied to the door in the opening / closing direction. Further, the present invention is characterized in that a coil spring is provided which resiliently urges the door so that the door is lifted upward when the fulcrum is located below the straight line.

A fourth high-frequency heating apparatus according to the present invention is installed near a hanging cabinet, wherein a door is attached to a front opening of a heating chamber of the case so as to be openable and closable in an upwardly open manner. A door storage space is provided above the heating chamber for storing a door that is open at a required angle or more.

The fifth high-frequency heating apparatus according to the present invention is characterized in that
Wherein the door storage space is shaped so that the door can be inserted from its upper side toward the back of the door storage space when the door is opened to a substantially horizontal position. .

The sixth high-frequency heating apparatus according to the present invention is characterized in that:
Alternatively, in the fifth configuration, an opening angle restricting unit that permits the door to be opened until the door is substantially in a horizontal position and restricts the door from being opened further upward, and stores the door in a door storage space in a substantially horizontal position. Door guiding means for guiding a sliding operation to be performed.

The seventh high-frequency heating apparatus according to the present invention is characterized in that:
Wherein the door guide means is provided on left and right side walls forming the door storage space and rotatably supports tilting pivots provided on both left and right ends of an upper side of the door at a front position of the door storage space. It is characterized in that it includes a guide rail that slidably supports from the front position to the back side.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described based on embodiments shown in the drawings.

FIGS. 1 to 5 show an embodiment of the present invention. Here, a microwave oven is taken as an example of the high-frequency heating device. 1 is an explanatory view showing an installation mode of a microwave oven, FIG. 2 is a perspective view showing a state in which a door 6 of the microwave oven is opened, FIG. 3 is a front view of FIG. 2, and FIG. 6 is a longitudinal sectional side view showing a state where the shutter 6 is closed, and FIG.
5 is a vertical sectional side view showing a state where a door 6 is opened.

The microwave oven 1 shown in FIG. 1 is of a type which is installed in a space above a cooking stove 2 such as a gas range table along with a hanging cabinet 3, and a door 6 for opening and closing a heating chamber 5 of a case 4 is opened upward. It is in the form.

More specifically, the door 6 has pivoting shafts 7 provided at the left and right ends on the upper side thereof rotatably locked with respect to the front opening of the heating chamber 5 of the case 4. The door 6 opens and closes upward with two tilting pivots 7 provided on the upper side as fulcrums. On the lower side of the door 6, there is provided a locking piece 8 which is locked by a lock mechanism (not shown) provided in the case 4 to keep the door 6 closed.

Here, the feature is that the door 6 can be easily opened and closed with a light force.

Specifically, the door 6 is provided with an opening / closing auxiliary means. The opening and closing assist means includes a balancer 10,
And a coil spring 15.

The balancer 10 has a structure in which a spherical weight 12 is integrally formed at one end of a support bar 11, and the other end of the support bar 11 is connected to two tilt support shafts 7 provided on the door 6. When the support bar 11 is closed with the door 6
Is mounted in a posture having an angle of 90 degrees or more with respect to

The balancer 10 is set to a weight that balances with the weight of the door 6. When the support bar 11 is in a horizontal position, the weight of the weight 12 is balanced with the door 6 and becomes a neutral state in which the weight is immobile. When the support bar 11 is tilted to position the weight 12 upward, the weight of the weight 12 acts in the direction in which the door 6 is closed, and when the support bar 11 is tilted to position the weight 12 downward, the weight 12 Weight acts in a direction to open the door 6.

The coil spring 15 has one end locked at a required position in the case 4 and the other end locked at upper portions on both left and right sides of the door 6, and when the opening angle of the door 6 exceeds the required angle, the door is opened. While the door 6 is elastically urged so as to be lifted in the opening direction, when the opening angle of the door 6 is smaller than the required angle, the door 6 is elastically urged so as to be lowered in the closing direction.

More specifically, when the tilting fulcrum O of the door 6 intersects on a straight line connecting the one-end locking point P1 and the other-end locking point P2 of the coil spring 15, the coil spring 15 is extended to the maximum. To the neutral position in which no resilient urging force acts on the door 6, and the tilting fulcrum O of the door 6 is located on a straight line connecting the one end side locking point P 1 and the other end side locking point P 2 of the coil spring 15. When it is also located on the lower side, the coil spring 15 is compressed, so that the door 6 is elastically urged in the closing direction, that is, downward. Further, when the tilting fulcrum O of the door 6 is located above a straight line connecting the one end side locking point P1 and the other end side locking point P2 of the coil spring 15, the coil spring 15 is compressed. Door 6
Will be urged upward in the opening direction, that is, upward.

Next, the opening and closing operation of the door 6 of the microwave oven 1 will be described.

First, when the door 6 is opened, the locking piece 8 of the door 6 is released from the lock mechanism (not shown) by grasping the handle of the door 6 and pulling it slightly forward. Continued
By lifting the door 6 upward, when the door 6 passes the required angle, the weight 12 of the balancer 10 is located below the horizontal line L, so that the weight of the weight 12 causes the door 6 to face upward. Will be raised. In addition to this, since the coil spring 15 starts to be compressed, the resilient urging force due to the compression of the coil spring 15 acts as a force to pull the door 6 upward, and the door 6 automatically reaches the opening limit position. Will open.

On the other hand, when the door 6 is closed, by pushing down the vicinity of the lower side of the door 6 downward, when the door 6 is located below the required angle, the weight 12 of the balancer 10 is located above the horizontal line L. Therefore, the door 6 can be lowered by the weight of the weight 12. In addition, since the coil spring 15 starts to be compressed, the resilient biasing force generated by the compression of the coil spring 15 acts as a force to pull the door 6 downward, and the position immediately before the door 6 automatically closes. Will be pulled until. Thus, when the user pushes the door 6 slightly toward the case 4 side, the locking piece 8 of the door 6 is engaged and locked with the lock mechanism on the case 4 side.

As described above, the microwave oven 1 of this embodiment is installed in the space above the cooking stove 2 such as a gas stove, and the door 6 is opened upward.
The opening / closing operation is assisted by the opening / closing auxiliary means including the balancer 10 and the coil spring 15, so that the opening / closing operation can be easily performed with a small force. Therefore, it is possible to easily and quickly perform an operation of putting the object to be cooked into and out of the heating chamber 5 of the microwave oven, thereby contributing to an improvement in the efficiency of the cooking operation.

It should be noted that the present invention is not limited to only the above embodiment, and various applications and modifications are conceivable.

FIGS. 6 to 12 show another embodiment of the present invention. This embodiment is characterized in that the door 6 can be stored in the case 4 from a state where the door 6 is opened in a horizontal posture.

Specifically, a door storage space 20 for storing the door 6 in a horizontal position is provided below the ventilation passage 9 provided above the heating chamber 5 in the case 4.

In order to store the door 6 in the door storage space 20, a telescopic damper 25 for regulating the maximum opening angle of the door 6, and upper and lower guide rails 30 for slidingly guiding the door 6 and the telescopic damper 25 in the depth direction are provided. 35 is equipped. The telescopic damper 25 corresponds to the opening angle regulating means described in the claims, and the upper and lower guide rails 30 and 35 correspond to the door guiding means described in the claims.
Then, in order to make the storing operation of the door 6 smooth,
A roller 40 is rotatably attached to the edge of the tilt support shaft 7.

When the door 6 is opened in a horizontal position, the telescopic damper 25 prevents the door 6 from opening any further.
Of the telescopic damper 25.
Is attached to the door 6, and the lower end is engaged with the lower guide rail 40.

The upper guide rail 30 is provided in the door storage space 20.
The roller 40 is attached to the inner surfaces of the left and right side walls of the case 4 and forms the roller 40 attached to the tilt support shaft 7 of the door 6.

The upper guide rail 30 allows the pivoting operation of the tilting support shaft 7 only when the tilting support shaft 7 of the door 6 is located at the front end portion thereof, and allows the door 6 to be opened to the limit. Only, the sliding operation of the door 6 is allowed. For this purpose, first, the sectional shape of the tilting support shaft 7 is formed in an oval shape. A circular portion 32 is formed at the front end of the rail groove 31 of the upper guide rail 30, and the width of the rail groove 31 is larger than the thickness of the thin portion of the oval tilt support shaft 7 and the tilt support shaft 7 Is set smaller than the thickness of the thick portion.

The lower guide rail 35 is attached to the outer surfaces of the left and right side walls of the heating chamber 5, and the lower end of the telescopic damper 25 is engaged.

Next, the storing operation of the door 6 will be described.

First, the door 6 may be opened to the open limit position to be in a horizontal position, and then the lower side of the door 6 may be pushed to the back.
That is, when the door 6 is set in the horizontal position, the thin portion of the tilt support shaft 7 can come out of the circular portion 32 of the rail groove 31 of the upper guide rail 30. In this state, if the door 6 is pushed inward, the tilt support shaft is 7 can enter the main body portion of the rail groove 31 of the upper guide rail 30, and the tilting support shaft 7 is slid and guided by the upper guide rail 30, while expanding and contracting with the rearward movement of the door 6. The damper 25 is slid and guided by the lower guide rail 35, and the entire door 6 enters the door storage space 20.

As described above, if the door 6 can be stored in the door storage space 20 in the case 4, when the object to be cooked is put in and out of the heating chamber 5, the door 6 is not obstructed. As a result, the efficiency of the cooking operation is improved.

[0038]

According to the first to third aspects of the present invention, the opening / closing operation is assisted when the door is opened / closed, so that the opening / closing operation can be easily performed with a small force. This makes it possible to easily and quickly perform an operation of putting the object to be cooked into and out of the heating chamber, thereby contributing to an improvement in the efficiency of the cooking operation. Thus, a high-frequency heating device having a kind design can be provided.

According to the fourth to seventh aspects of the present invention, the door can be stored in the door storage space in the case.
When the object to be cooked is taken in and out of the heating chamber, the door is not obstructed, which contributes to an increase in the efficiency of the cooking operation.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an installation mode of a microwave oven according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state where a door of the microwave oven of FIG. 1 is opened.

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a vertical sectional side view showing a state in which a door of a microwave oven is closed.

5 is a vertical sectional side view showing a state where a door is opened in FIG. 4;

FIG. 6 is a front view showing a microwave oven according to another embodiment of the present invention.

FIG. 7 is a longitudinal sectional side view showing a state in which a door of a microwave oven is closed.

FIG. 8 is a vertical sectional side view showing a state where a door is opened in FIG. 7;

FIG. 9 is a longitudinal sectional side view showing a state where the door is opened and housed in a case in FIG. 8;

FIG. 10 is an enlarged front view showing a mechanism for storing a door.

11 is a sectional view taken along line (11)-(11) of FIG. 10 and shows a state in which the door is closed.

FIG. 12 is a sectional view taken along line (11)-(11) of FIG. 10 and shows a state in which a door is opened.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Microwave oven 2 Cooking table 3 Hanging cabinet 4 Range case 5 Heating chamber 6 Door 7 Door tilting support shaft 10 Balancer 11 Support bar 12 Weight 15 Coil spring O Tilt support point P1 One end locking point of coil spring P2 The other end locking of coil spring point

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yasunori Kusachi 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. (Reference) 3L086 AA01 AA13 BC02 DA24

Claims (7)

[Claims] 1. A high-frequency heating cooker installed near a hanging cabinet, wherein a door is attached to a front opening in a heating chamber of a case so as to be openable and closable in an upward opening manner, and an opening angle of the door is provided. When the angle exceeds a required angle, the door is lifted upward, and when the opening is less than the required opening, the door is biased in a manner to push down the door. apparatus. 2. The high-frequency heating apparatus according to claim 1, wherein said opening / closing auxiliary means has a balancer which is attached to the tilting fulcrum of the door when the opening angle of the door is at a required angle. A high-frequency heating device. 3. The high-frequency heating device according to claim 1, wherein said opening / closing auxiliary means has one end locked to a case and the other end locked to a door, and is connected to said one end locking point and said other end side. If the tilting fulcrum of the door intersects on the straight line connecting the stop point, it will extend to the maximum and will be in a neutral state that does not apply the resilient biasing force to the door in the opening and closing direction, and if the tilting fulcrum is located above the straight line It urges the door by pushing it down,
A high-frequency heating device comprising: a coil spring that resiliently urges the door upward when the tilting fulcrum is positioned below the straight line. 4. A high-frequency heating device installed in the vicinity of a hanging cabinet, wherein a door is attached to a front opening of a heating chamber of the case so as to be openable and closable in an upward opening manner, and the heating chamber is located above the heating chamber of the case. A door storage space for storing a door that is open at a required angle or more,
A high-frequency heating device, characterized in that: 5. The high-frequency heating device according to claim 4, wherein the door is inserted from its upper side toward the back of the door storage space when the door storage space is open to a substantially horizontal position. A high-frequency heating device having a shape that can be used. 6. The high-frequency heating apparatus according to claim 4, wherein an opening angle restricting means for permitting the door to be opened to a substantially horizontal posture and for restricting the door from being opened further upward, Door guide means for guiding a sliding operation to be stored in the door storage space in a horizontal posture,
A high-frequency heating device, characterized in that: 7. The high-frequency heating device according to claim 6, wherein the door guide means is provided on left and right side walls forming the door storage space and is provided with tilting pivots provided on left and right ends of an upper side of the door in the door storage space. A high-frequency heating device comprising: a guide rail rotatably supported at a front position and slidably supported from the front position toward a back side.