WO2018147321A1

WO2018147321A1 - Heat-cooking device

Info

Publication number: WO2018147321A1
Application number: PCT/JP2018/004195
Authority: WO
Inventors: 周平野村; 大森　義治
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2017-02-08
Filing date: 2018-02-07
Publication date: 2018-08-16
Also published as: JPWO2018147321A1; JP6920597B2

Abstract

This heat-cooking device is equipped with a heating chamber, a door, a damper, and a damper arm. The heating chamber is provided in the main body and configured so as to house an item to be heated therein. The door is attached to the main body so as to be capable of rotating around a rotational axis, and is configured so as to cover the front-surface opening of the heating chamber. The damper is provided in the main body. The damper arm has a front end which is rotatably connected to the door, and a rear end which contacts the damper. When the door rotates around the rotational axis, the front end of the damper arm rotates with the door, and the rear end of the damper arm applies pressure to the damper by moving back and forth in unison with the door rotation. This technology makes it possible to simplify and reduce the size of a door opening/closing mechanism equipped with a damper. As a result, it is possible to reduce the cost of and save space occupied by a door opening/closing mechanism.

Description

Cooker

The present disclosure relates to a cooking device, particularly its door.

Patent Document 1 discloses an example of a door of a conventional heating cooker. FIG. 7 is a partially cutaway side view of the conventional heating cooker described in Patent Document 1 with the door closed, and FIG. 8 is a partially cutaway view of the heating cooker with the door open. FIG.

7 and 8, the cooking device includes a heating chamber 52 provided in the main body 51, a door 53 that covers the front opening of the heating chamber 52, and an opening / closing mechanism for the door 53.

The opening / closing mechanism of the door 53 includes a damper 54, a door arm 56, a roller 57, a spring 58, an operating lever 62, and a connecting lever 64.

An electrical component 66 is disposed in the space between the main body 51 and the heating chamber 52 above the heating chamber 52.

When the door 53 is closed, an impact load of the door 53 is generated by the spring 58 as shown in FIG. Immediately before the door 53 is completely closed, the inner surface of the door 53 pushes the convex portion 61 provided on the operating lever 62 in the direction of the arrow Ya. By this operation, the impact load of the door 53 is transmitted to the damper 54 and absorbed by the damper 54.

When the door 53 is opened, the door arm 56 is pulled out while being pressed against the roller 57 by the spring 58. When the door arm 56 is pulled out to the state shown in FIG. 8, the door arm 56 pushes the lower end of the connecting lever 64 in the direction of the arrow Yb with a pin 68 provided on the door arm 56.

As a result, the upper end of the connecting lever 64 moves in the direction of the arrow Yc and pushes the convex portion 61 provided on the operating lever 62 in the direction of the arrow Yd. By these operations, the impact load due to the weight of the door 53 is transmitted to the damper 54 and absorbed by the damper 54.

According to the above-described prior art, the shock force transmitted to the main body 51 of the cooking device when the door 53 is opened and closed is alleviated by the damper 54, so that the liquid is prevented from splashing in the heating chamber 52, and the electric component 66 caused by vibration is used. Suppress the impact on

JP 2002-039541 A

However, in the invention described in Patent Document 1, the mechanism for transmitting an impact load to the damper 54 is different depending on whether the door 53 is opened or closed, and the number of parts around the damper 54 increases. Therefore, it is difficult to simplify and miniaturize the opening / closing mechanism of the door 53.

The cooking device according to one aspect of the present disclosure includes a heating chamber, a door, a damper, and a damper arm.

The heating chamber is provided in the main body and is configured to accommodate an object to be heated. The door is attached to the main body so as to be rotatable about a rotation axis, and is configured to cover the front opening of the heating chamber. The damper is provided on the main body. The damper arm has a front end that is rotatably connected to the door and a rear end that contacts the damper.

When the door rotates about the rotation axis, the front end of the damper arm rotates with the door, and the rear end of the damper arm is configured to reciprocate in conjunction with the rotation of the door to press the damper.

According to this aspect, the door opening / closing mechanism provided with the damper can be simplified and miniaturized. As a result, cost reduction and space saving of the door opening / closing mechanism can be achieved.

FIG. 1 is a partially cutaway side view of a heating cooker according to an embodiment of the present disclosure in a state where a door is completely closed. FIG. 2 is a partially cutaway side view of the heating cooker according to the present embodiment in a state where the door is partially opened. FIG. 3 is a partially cutaway side view of the heating cooker according to the present embodiment in a state where the door is completely opened. FIG. 4 is an enlarged side view of a main part of the damper and the damper arm when the door is opened and closed in the present embodiment. FIG. 5 is a diagram showing the range of the door opening angle at which the damper operates in the present embodiment. FIG. 6 is a partially cutaway front view of the heating cooker according to the present embodiment with the door closed. FIG. 7 is a partially cutaway side view of a conventional cooking device with the door closed. FIG. 8 is a partially cutaway side view of a conventional cooking device with the door opened.

The heating cooker according to the first aspect of the present disclosure includes a heating chamber, a door, a damper, and a damper arm.

According to the heating cooker of the second aspect of the present disclosure, in the first aspect, the rear of the damper arm at the door opening angle close to the door fully closed state and the door opening angle close to the door fully open state. The end is configured to press the damper.

According to the cooking device of the third aspect of the present disclosure, in the second aspect, the rear end of the damper arm does not press the damper at the opening angle of the door near the middle between the fully closed state and the fully opened state. Configured as follows.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.

FIG. 1 is a partially cutaway side view of the heating cooker according to the embodiment of the present disclosure in a state where the door 3 is completely closed. FIG. 2 is a partially cutaway side view of the heating cooker according to the present embodiment in a state where the door 3 is partially opened. FIG. 3 is a partially cutaway side view of the heating cooker according to the present embodiment in a state where the door 3 is completely opened.

In the present embodiment, the door 3 side of the main body 1 of the cooking device, that is, the left side of FIGS. The right side from the front toward the main body 1, that is, the front side in FIGS. A state in which the door 3 is completely closed is referred to as a fully closed state of the door 3, and a state in which the door 3 is completely opened is referred to as a fully opened state of the door 3.

1 to 3, a heating chamber 2 having a front opening 2a is provided in the main body 1 of the cooking device. A door 3 is provided on the front surface of the heating chamber 2 so as to cover the front opening 2a. A handle 14 is provided on the upper portion of the door 3.

A magnetron (not shown) for generating a microwave to be supplied to the heating chamber 2 is provided at the lower part of the main body 1. In order to prevent microwaves from leaking out of the heating chamber 2, a door choke 13 is provided at a portion of the door 3 that is in contact with a portion around the front opening 2 a of the main body 1.

Hereinafter, the door opening / closing mechanism 4 for opening and closing the door 3 will be described.

As shown in FIGS. 1 to 3, the door opening / closing mechanism 4 includes a main body side connecting portion 5, a damper arm 6, a damper 7, a damper fixing portion 8, a door arm 9, a spring 10, a rotating shaft 11, and a door side connecting portion 12. Including.

The main body side connecting portion 5 is provided in front of the lower portion of the main body 1 of the cooking device such that the front end protrudes forward from the main body 1. The main body side connecting portion 5 is provided with two elongated guide holes (

guide holes

5a and 5b). The rotating shaft 11 is provided at the front end of the main body side connecting portion 5 and is located at the lower portion of the door 3. The rotating shaft 11 extends in the horizontal direction (depth direction in the drawing).

The door side connecting portion 12 is provided at the lower portion of the door 3 to support the door 3, and is attached to the main body 1 so as to be rotatable about the rotation shaft 11. That is, the door 3 is a so-called vertical opening door that is rotatable around a rotation shaft 11 extending in the horizontal direction (depth direction in the drawing). The door 3 is freely rotatable within an opening angle range of 0 ° to 90 °.

The damper fixing part 8 is provided at the rear part of the main body side connecting part 5. The damper 7 is fixed to the damper fixing portion 8. The damper 7 reduces the impact force transmitted to the main body 1 of the heating cooker when the door 3 is opened and closed.

The damper arm 6 is an elongated plate-like member having a front end 6a and a rear end 6b. The front end 6 a is rotatably connected to the door side connecting portion 12. The rear end 6 b is slidably inserted into the guide hole 5 b and faces the tip of the damper 7.

The door arm 9 is an elongated plate-like member having a front end 9a and a rear end 9b. The front end 9a is rotatably connected to the door side connecting portion 12. The rear end 9b is slidably inserted into the guide hole 5a. The front end of the spring 10 which is an elastic body is connected to the rear end 9b. The rear end of the spring 10 is attached to the main body side connecting portion 5. With this configuration, the door arm 9 is always biased by the spring 10 in the direction of closing the door 3.

FIG. 4 is a side view of the main part of the rear end 6 b of the damper arm 6 and the damper 7. States (1) to (3) in FIG. 4 correspond to the states shown in FIGS. 1 to 3, respectively.

1, the rear end 6b of the damper arm 6 is located at the rearmost position (see state (1) in FIG. 4). At this time, the rear end 6 b of the damper arm 6 presses the damper 7.

When the user pulls the handle 14 from this state, the door 3 rotates around the rotating shaft 11. The front end 6 a of the damper arm 6 rotates together with the door 3. The rear end 6 b of the damper arm 6 slides forward along the guide hole 5 b together with the tip of the damper 7 in conjunction with the rotation of the door 3.

In FIG. 2, the rear end 6b of the damper arm 6 is located in the foremost position (see state (2) in FIG. 4). At this time, the rear end 6 b of the damper arm 6 does not press the damper 7.

When the front end 6 a of the damper arm 6 further rotates together with the door 3, the rear end 6 b of the damper arm 6 slides rearward along the guide hole 5 b together with the tip of the damper 7. When the door 3 is completely opened, as shown in FIG. 3, the damper 7 returns to the state shown in FIG. 1 (see the state (3) in FIG. 4). At this time, the rear end 6 b of the damper arm 6 presses the damper 7.

Thus, when the door 3 is rotated 90 ° about the rotary shaft 11, the front end 6 a of the damper arm 6 rotates together with the door 3. The rear end 6 b of the damper arm 6 reciprocates in the front-rear direction in conjunction with the rotation of the door 3. That is, the door 3 and the door opening / closing mechanism 4 constitute a slider crank mechanism in which the door 3, the rear end 6b of the damper arm 6, and the damper arm 6 function as a crank, a slider, and a connecting rod, respectively.

When the door 3 rotates, the front end 9 a of the door arm 9 rotates together with the door 3. The rear end 9 b of the door arm 9 slides along the guide hole 5 a in conjunction with the rotation of the door 3 while being pulled rearward by the spring 10.

Hereinafter, the relationship between the opening and closing of the door 3 and the operation of the damper 7 will be described.

FIG. 4 is a side view of the main part of the rear end 6 b of the damper arm 6 and the damper 7. States S1 to S3 shown in FIG. 4 correspond to the states shown in FIGS.

1 When the user pulls the handle 14 from the state shown in FIG. 1 to the state shown in FIG. 3, the door 3 rotates 90 ° about the rotation shaft 11. The front end 6 a of the damper arm 6 rotates in conjunction with the rotation of the door 3. At this time, since the rear end 6b of the damper arm 6 is inserted into the guide hole 5b, the rear end of the damper arm 6 reciprocates back and forth along the guide hole 5b in conjunction with the rotation of the door 3 (see FIG. 4). ).

As will be described later, the rear end of the damper arm 6 presses the damper 7 at the opening angle of the door 3 close to the fully closed state and the opening angle of the door 3 close to the fully open state.

The front end 9 a of the door arm 9 moves back and forth in conjunction with the rotation of the door 3. Accordingly, the spring 10 expands and contracts. The door arm 9 is always biased by the spring 10 in the direction in which the door 3 is closed.

When the opening angle of the door 3 is smaller than a predetermined value, the force for closing the door 3 by the spring 10 is larger than the force for opening the door 3 by its own weight. For this reason, when the user releases the handle 14, the door 3 is automatically closed by the force of the spring 10.

The force of the spring 10 assists the user in closing the door 3 from the state of FIG. 2 or FIG. In the state shown in FIG. 1, the sealed state of the heating chamber 2 is maintained by the force of the spring 10.

When the opening angle of the door 3 is a predetermined value or more, the force for closing the door 3 by the spring 10 is smaller than the force for opening the door 3 by the weight of the door 3. For this reason, when the user releases the handle 14, the door 3 automatically opens due to the weight of the door 3.

According to this embodiment, the impact force when the door 3 automatically opens and closes automatically can be reduced by the damper 7.

FIG. 5 is a view showing the range of the opening angle of the door 3 on which the damper 7 operates. As shown in FIG. 5, the rear end of the damper arm 6 presses the damper 7 within an opening angle range of 0 ° to 30 °.

When the opening angle is in the range of 30 ° to 60 °, the rear end of the damper arm 6 does not press the damper 7. When the opening angle is in the range of 60 ° to 90 °, the rear end of the damper arm 6 presses the damper 7. When the opening angle is 0 °, the door 3 is in a fully closed state, and when the opening angle is 90 °, the door 3 is in a fully open state.

When opening the door 3, the repulsive force of the damper 7 acts on the door 3 as a braking force in the direction opposite to the movement of the door 3 within an opening angle range of 60 ° to 90 °. That is, the operating range of the damper 7 is in a range where the opening angle is 60 ° to 90 ° (operating range A).

When closing the door 3, the repulsive force of the damper 7 acts on the door 3 as a braking force in the direction opposite to the movement of the door 3 within an opening angle range of 30 ° to 0 °. That is, the operating range of the damper 7 is in a range where the opening angle is 0 ° to 30 ° (operating range B).

Thus, the braking force of the damper 7 acts on the door 3 immediately before the door 3 is completely opened and closed. Thereby, the impact force transmitted to the main body 1 of the heating cooker can be mitigated by the damper 7 when the vertically open door 3 is opened and closed.

When the opening angle is in the range of 30 ° to 60 °, the repulsive force of the damper 7 does not reach the damper arm 6 and the burden on the user is reduced.

Hereinafter, the size of the door opening / closing mechanism 4 will be described.

As shown in FIG. 1, in the fully closed state of the door 3, the height H3 of the front end 9a of the door arm 9, the height H4 of the rear end of the spring 10, the height H5 of the front end 6a of the damper arm 6, Of the height H6 of the portion 5, the height H3 of the front end 9a of the door arm 9 is the highest.

The height H2 of the lower end of the door choke 13 is lower than the height H1 of the lower end of the heating chamber 2. Therefore, if the height H3 is designed to be lower than the height H2, it is not necessary to consider the height of the door opening / closing mechanism 4 in the main body 1 in order to determine the size of the space below the heating chamber 2.

According to the present embodiment, the height of the space occupied by the door opening / closing mechanism 4 can be suppressed. As a result, the above design can be easily performed.

FIG. 6 is a partially cutaway front view of the heating cooker according to the present embodiment with the door 3 closed.

As shown in FIG. 6, the main body 1 has a main body frame 30 around the front opening 2a. The main body frame 30 includes a lower frame 30a, a side frame 30b, and an upper frame 30c.

The door opening / closing mechanism 4 is arranged at the lower left side in the main body 1. As described above, the height H3 of the front end 9a of the door arm 9 is lower than the height H2 of the lower end of the door choke 13 (see FIG. 1). For this reason, the components arranged in the main body 1 of the door opening / closing mechanism 4 are accommodated in the lower frame portion 30a.

That is, it is not necessary to consider the width of the door opening / closing mechanism 4 in the main body 1 in order to determine the width W1 of the side frame portion 30b. As a result, the main body 1 of the heating cooker can be reduced in size while maintaining the size and capacity of the heating chamber 2.

As described above, according to the present embodiment, the door opening / closing mechanism 4 including the damper 7 can be simplified and downsized. As a result, the cost of the opening / closing mechanism of the door 3 can be reduced and the space can be saved.

This disclosure can be applied not only to cookers but also to other electrical appliances and furniture.

DESCRIPTION OF

SYMBOLS

1,51

Main body

2,52 Heating chamber 2a

Front opening

3,53 Door 4 Door opening / closing mechanism 5 Main body

side connection part

5a, 5b Guide hole 6

Damper arm

6a,

9a Front end

6b,

9b Rear end

7,54 Damper 8 Damper fixing part DESCRIPTION OF

SYMBOLS

9,56

Door arm

10,58 Spring 11 Rotating shaft 12 Door side connection part 13 Door choke 14 Handle 30 Main body frame part 30a Lower frame part 30b Side frame part 30c Upper frame part 57 Roller 61 Convex part 62 Actuation lever 64 Connection lever 66 Electrical component 68 pins

Claims

A heating chamber provided in the main body and configured to accommodate an object to be heated;
A door that is attached to the main body so as to be rotatable about a rotation axis, and is configured to cover a front opening of the heating chamber;
A damper provided on the main body;
A damper arm having a front end rotatably connected to the door and a rear end in contact with the damper;
When the door rotates about the rotation axis, the front end of the damper arm rotates together with the door, and the rear end of the damper arm reciprocates in conjunction with the rotation of the door to press the damper. Cooker configured as above.
The rear end of the damper arm is configured to press the damper at an opening angle of the door close to the fully closed state of the door and the opening angle of the door close to the fully open state of the door. Item 10. The heating cooker according to item 1.
The cooking device according to claim 2, wherein the rear end of the damper arm is configured not to press the damper at the opening angle of the door near the middle between the fully closed state and the fully opened state. .