WO2018147322A1

WO2018147322A1 - Heat-cooking device

Info

Publication number: WO2018147322A1
Application number: PCT/JP2018/004196
Authority: WO
Inventors: 周平野村; 大森　義治; 弘一朗川添
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: CN110214251B; JP6920598B2; JPWO2018147322A1; CN110214251A

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 a 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 cover the front-surface opening of the heating chamber. The damper is provided in the main body. The damper arm is provided in the main body, and has a front end and a rear end which faces the damper. The door has a contact member configured so as to contact the front end. When opening/closing the door, the door functions as the driver, the contact member or front end functions as the cam, the damper arm functions as the follower, and as a result, the rear end of the damper arm applies pressure to the damper. This technology makes it possible to make the structure around the periphery of a damper smaller and simpler. As a result, it is possible to reduce the cost of and 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. 10 is a partially cutaway side view of the conventional heating cooker described in Patent Document 1 in a state where the door is closed, and FIG. 11 is a partial cutout in a state where the door of the heating cooker is opened. FIG.

As shown in FIGS. 10 and 11, the heating cooker includes a heating chamber 52 provided in the main body 51, a door 53 covering 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 force 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 force 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 pulled out to the state shown in FIG. 11, 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 force 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 the impact force to the damper 54 differs depending on whether the door 53 is opened or closed, and the number of parts around the damper 54 increases. For this reason, 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 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 is provided in the main body and has a front end and a rear end facing the damper.

The door has a contact member configured to contact the front end. When the door rotates about the rotation axis, the door functions as a driving node, the abutting member or the front end functions as a cam, and the damper arm functions as a driven node so that the rear end of the damper arm presses the damper. Configured.

According to this aspect, the structure around the damper that reduces the impact force transmitted to the main body of the heating cooker when the door is opened and closed can be simplified and miniaturized. As a result, cost reduction and space saving of the door opening / closing mechanism can be achieved.

1 is a partially cutaway side view of a heating cooker according to Embodiment 1 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 Embodiment 1 with the door partially opened. FIG. 3 is a partially cutaway side view of the heating cooker according to Embodiment 1 in a state where the door is completely opened. FIG. 4 is an enlarged side view of main parts of a damper, a damper arm, and a contact member when the door is opened and closed in the heating cooker according to the first embodiment. FIG. 5 is a diagram showing a range of door opening angles at which the damper operates in the first embodiment. FIG. 6 is a partially cutaway side view of the heating cooker according to the second embodiment of the present disclosure with the door closed. FIG. 7 is a partially cutaway top view of the heating cooker according to the second embodiment, showing some intermediate states of the door when the door is opened. FIG. 8 is an enlarged side view of a main part of the damper, the damper arm, and the contact member when the door is opened and closed in the second embodiment. FIG. 9 is a diagram showing a range of door opening angles at which the damper operates in the second embodiment. FIG. 10 is a partially cutaway side view of a conventional cooking device with the door closed. FIG. 11 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. The heating chamber is provided in the main body and 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 is provided in the main body and has a front end and a rear end facing the damper.

The door has a contact member configured to contact the front end. When the door rotates around the rotation axis, the door functions as a driving node, the abutting part or the front end functions as a cam, and the damper arm functions as a driven node so that the rear end of the damper arm presses the damper. Configured.

In the cooking device according to the second aspect of the present disclosure, in addition to the first aspect, the 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 The rear end is configured to press the damper.

In the cooking device according to the third aspect of the present disclosure, in addition to the second aspect, the rear end of the damper arm is configured not to press the damper at the door opening angle between the fully closed state and the fully open state. The

In the cooking device of the fourth aspect of the present disclosure, in addition to the first aspect, the contact portion is configured to function as a cam.

In the heating cooker according to the fifth aspect of the present disclosure, in addition to the fourth aspect, the contact member includes a first contact portion and a second contact portion. In the fully closed state of the door, only the first contact portion contacts the front end of the damper arm. In the fully open state of the door, only the second contact portion contacts the front end.

The first contact portion and the second contact portion are configured to contact the front end at the door opening angle between the fully closed state and the fully open state.

In the cooking device of the sixth aspect of the present disclosure, in addition to the first aspect, the front end is configured to function as an opposite cam.

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

(Embodiment 1)
FIG. 1 is a partially cutaway side view of the heating cooker according to the first embodiment of the present disclosure in a state in which 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.

The door 3 is a so-called vertically opened door that is rotatable about a rotating shaft 9 provided in the lower portion and 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 °. A handle 10 is provided on the upper portion of the door 3.

The main body 1 of the heating cooker further includes a door arm 6, a roller 7, and a spring 8. The roller 7 is attached to a space between the heating chamber 2 and the main body 1. One end of the spring 8 is fixed to the lower part in the main body 1.

The door arm 6 is an elongated plate-like member. The lower edge portion of the door arm 6 contacts the roller 7. One end of the door arm 6 is rotatably attached to the door 3. The other end of the door arm 6 is engaged with the other end of the spring 8. With this configuration, the door arm 6 is pressed against the roller 7 by the spring 8.

When the opening angle of the door 3 is smaller than a predetermined value, the force for closing the door 3 by the spring 8 is larger than the force for opening the door 3 by its own weight. For this reason, when the user releases the handle 10, the door 3 is automatically closed by the force of the spring 8.

The force of the spring 8 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 8.

When the opening angle of the door 3 is a predetermined value or more, the force for closing the door 3 by the spring 8 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 10, the door 3 is automatically opened by its own weight.

The main body 1 of the cooking device further includes a damper 4. The damper 4 reduces the impact force transmitted to the main body 1 of the heating cooker when the door 3 is opened and closed. Hereinafter, the damper 4 will be described.

The damper 4 is disposed at the lower part of the main body 1 such that the longitudinal direction thereof faces the front-rear direction of the main body 1 of the cooking device.

The damper arm 5 has a front end 5 a and a rear end 5 b, and is an elongated rod-like member disposed in front of the damper 4 so as to be aligned with the damper 4. The damper arm 5 is slidable in the longitudinal direction, that is, the front-rear direction.

The front end 5 a of the damper arm 5 is a plate-like member that is provided at the tip of the damper arm 5 and protrudes outside the main body 1. A rear end 5 b of the damper arm 5 contacts the damper 4 in the main body 1. When the front end 5 a is pushed backward, the rear end 5 b pushes the damper 4.

In the lower part of the door 3, a recess 3a is provided. A contact member 11 that protrudes in the horizontal direction (the depth direction in the drawing) is provided in the recess 3a. In the present embodiment, the contact member 11 has two protruding members (a first contact portion 11a and a second contact portion 11b).

As shown in FIG. 1, in the fully closed state of the door 3, the contact member 11 has a first contact portion 11 a located above the rotation shaft 9 and a second contact portion 11 b placed in front of the rotation shaft 9. It is provided so that it may be located. More specifically, a line segment connecting the first contact portion 11 a and the rotation shaft 9 is orthogonal to a line segment connecting the second contact portion 11 b and the rotation shaft 9. The lengths of the two line segments are the same.

In addition, only the 1st contact part 11a and the 2nd contact part 11b are arrange | positioned in the recessed part 3a. The rotating shaft 9 is virtually formed at the position shown in FIGS. 1 to 3 by a member (not shown) pivotally supporting the door 3, and does not actually exist in the recess 3a.

The first contact portion 11a and the second contact portion 11b contact the front end 5a when the door 3 is opened and closed as follows.

In the state shown in FIG. 1, the front end 5a is in contact with the first contact portion 11a. When the door 3 is opened from this state, the contact member 11 rotates together with the door 3 about the rotation shaft 9. Until the state shown in FIG. 2, the damper arm 5 moves forward while the front end 5a contacts only the first contact portion 11a in conjunction with the rotation of the door 3.

In the state shown in FIG. 2, the front end 5a contacts the first contact portion 11a and the second contact portion 11b. In this state, the damper arm 5 is located in the foremost position.

When the door 3 is further opened, the contact member 11 further rotates with the door 3 around the rotation shaft 9. In conjunction with the rotation of the door 3, the damper arm 5 moves rearward while the front end 5a contacts only the second contact portion 11b. The door 3 moves to the state shown in FIG.

3, when the door 3 is closed, the contact member 11 rotates together with the door 3 about the rotation shaft 9. Until the state shown in FIG. 2, the damper arm 5 moves forward while the front end 5 a contacts only the second contact portion 11 b in conjunction with the rotation of the door 3.

In the state shown in FIG. 2, the front end 5a contacts the second contact portion 11b and the first contact portion 11a. In this state, the damper arm 5 is located in the foremost position.

When the door 3 is further closed, the contact member 11 further rotates together with the door 3 around the rotation shaft 9. In conjunction with the rotation of the door 3, the damper arm 5 moves rearward while the front end 5a contacts only the first contact portion 11a. The door 3 shifts to the state shown in FIG.

Thus, as the door 3 rotates 90 ° about the rotating shaft 9, the damper arm 5 reciprocates in the front-rear direction of the main body 1. That is, in this embodiment, the door 3 functions as a driving node, the abutting members 11 (first abutting portion 11a, second abutting portion 11b) function as a kind of flat cam, and the damper arm 5 is a driven node. Function as.

FIG. 4 is an enlarged side view of main parts of the damper 4, the damper arm 5, and the first contact portion 11 a when the door is opened and closed in the main body 1 of the cooking device. FIG. 5 is a diagram showing the range of the opening angle of the door 3 on which the damper 4 operates.

As shown in FIG. 4, the positions of the first contact portion 11 a and the second contact portion 11 b (the second contact portion 11 b is not shown in FIG. 4) and the shape of the front end 5 a of the damper arm 5. By changing, the buffering effect by the damper 4 can be adjusted.

As can be seen by comparing the configuration example C1 and the configuration example C2 shown in FIG. 4, the horizontal position of the front end 5a that first contacts the first contact portion 11a varies depending on the shape of the front end 5a. For this reason, the range of the opening angle of the door 3 which presses the damper 4 can be set as follows by adjusting the shape of the front end 5a, for example.

As shown in FIG. 5, 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 the opening angle is in the range of 0 ° to 30 °, the rear end 5b of the damper arm 5 presses the damper 4. When the opening angle is in the range of 30 ° to 60 °, the rear end 5b does not press the damper 4. When the opening angle is in the range of 60 ° to 90 °, the rear end 5b presses the damper 4.

That is, the rear end 5 b of the damper arm 5 presses the damper 4 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.

In this embodiment, when the door 3 is opened, the repulsive force of the damper 4 acts on the door 3 as a braking force in the direction opposite to the movement of the door 3 when the opening angle is in the range of 60 ° to 90 °. That is, the operating range of the damper 4 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 4 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 °. In other words, the operating range of the damper 4 is in the range of 0 ° to 30 ° (operating range B).

When the opening angle is in the range of 30 ° to 60 °, the repulsive force of the damper 4 does not reach the damper arm 5 and the burden on the user is reduced.

As can be seen by comparing the configuration example C1 and the configuration example C3 shown in FIG. 4, when the distance between the first contact portion 11a and the rotating shaft 9 changes, the horizontal level of the first contact portion 11a corresponding to the same opening angle is changed. The direction travel distance changes. Thereby, the braking force of the damper 4 acting on the door 3 can be set to a desired value.

As described above, the braking force of the damper 4 acts on the door 3 before the door 3 is completely opened and before it is completely closed. Thereby, the impact force transmitted to the main body 1 of the cooking device can be mitigated by the damper 4 when the door 3 that is opened vertically is opened and closed.

According to the present embodiment, the structure around the damper 4 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.

In the present embodiment, the contact member 11 has two projecting members (first contact portion 11a and second contact portion 11b). However, the present disclosure is not limited to this, and the contact member 11 has one side having two sides at the same position as the first contact portion 11a and the second contact portion 11b of the present embodiment. You may comprise by a shape member.

(Embodiment 2)
The second embodiment of the present disclosure will be described by paying attention to differences from the first embodiment.

FIG. 6 is a partially cutaway side view of the cooking device according to the present embodiment with the door closed.

FIG. 7 is a partially cutaway top view of the heating cooker according to the present embodiment, showing some intermediate states of the door 3 when the door 3 is opened.

As shown in FIGS. 6 and 7, in the present embodiment, the door 3 is provided on the left side of the front surface of the main body 1, and is a so-called side-opening door that is rotatable about a rotating shaft 9 that extends in the vertical direction. It is.

The front end 5c of the damper arm 5 protrudes outside the main body 1 and is inserted into a recess 3a described later. A rear end 5 b of the damper arm 5 faces the damper 4 in the main body 1. When the front end 5 c is pushed backward, the rear end 5 b pushes the damper 4.

In the lower part of the door 3, a recess 3a is provided. A contact member 11 protruding in the vertical direction is provided in the recess 3a. In the present embodiment, the abutting member 11 is composed of one protruding member (third abutting portion 11c).

As in the first embodiment, only the third contact portion 11c and the front end 5c are disposed in the recess 3a. The rotary shaft 9 is virtually formed at the position shown in FIG. 6 by a member (not shown) pivotally supporting the door 3 and does not actually exist in the recess 3a.

The third contact portion 11c contacts the front end 5c when the door 3 is opened and closed as follows.

When the user pulls the handle 10 provided at the right end of the door 3 from the fully closed state (state D1 in FIG. 7) shown in FIG. 6, the door 3 passes through the intermediate states (D2 to D4) shown in FIG. And stop in the fully open state (D5).

FIG. 8 is an enlarged top view of the main parts of the damper 4, the damper arm 5, and the third abutting portion 11c when the door 3 is opened and closed in the present embodiment.

As shown in FIG. 8, the third contact portion 11c is provided on the right side of the rotary shaft 9 when the door 3 is fully closed (see state A1 in FIG. 8).

The front end 5c of the damper arm 5 has the following shape.

In the fully closed state of the door 3, the third contact portion 11c contacts the front end 5c at the contact P1 (see state A1 in FIG. 8). At the opening angle of the door 3 between the fully closed state and the fully open state (90 ° in the present embodiment), the third contact portion 11c contacts the front end 5c at the contact P2 (see state A3 in FIG. 8). In the fully open state of the door 3, the third contact portion 11c contacts the front end 5c at the contact point P3 (see state A5 in FIG. 8).

Among the contacts P1 to P3, the contact P1 is located at the rearmost position and the contact P2 is located at the most forward position. Tangent lines at the contacts P1 to P3 are substantially orthogonal to the longitudinal direction of the damper arm 5. The contact P2 is connected to the contact P1 with a smooth curve, and the contact P3 is connected to the contact P2 with a smooth curve.

When the door 3 is rotated by 150 ° around the rotation shaft 9, the third contact portion 11c rotates while contacting the front end 5c. The damper arm 5 reciprocates in the front-rear direction of the main body 1 in conjunction with the rotation of the door 3 due to the shape of the front end 5c.

That is, in the present embodiment, the door 3 functions as a driving node, the front end 5c functions as an opposite cam, and the damper arm 5 functions as a driven node. As a result, as shown below, the rear end 5b of the damper arm 5 presses the damper 4 three times within a predetermined range of the opening angle.

In FIG. 7, in the state D1, the opening angle of the door 3 is 0 ° (fully closed state). In the states D2, D3, and D4, the opening angles are 45 °, 90 °, and 120 °, respectively. In the state D5, the opening angle is 150 ° (fully opened state).

8, states A1 to A5 indicate the states of the damper arm 5 and the damper 4 when the door 3 is in the states D1 to D5, respectively.

7, the front end 5c of the damper arm 5 is pushed by the third contact portion 11c, and the rear end 5b of the damper arm 5 pushes the damper 4. The rear end 5b presses the damper 4 when the opening angle is in the range of 0 ° to 30 °.

When the opening angle exceeds 30 °, the rear end 5b does not press the damper 4. When the opening angle is 45 ° (state D2), the rear end 5b starts to press the damper 4 again, and the rear end 5b continues to press the damper 4 until the opening angle reaches 90 ° (state D3).

When the opening angle exceeds 90 °, the rear end 5b does not press the damper 4 again. When the opening angle exceeds 120 ° (state D4), the rear end 5b presses the damper 4 again.

That is, at the opening angle of the door 3 close to the fully closed state, the opening angle of the door 3 close to the fully open state, and the opening angle of the door 3 between the fully closed state and the fully open state, the rear end 5b of the damper arm 5 is the damper. 4 is pressed.

FIG. 9 is a diagram showing a range of opening angles of the door 3 on which the damper 4 operates in the present embodiment.

When the door 3 is opened, the repulsive force of the damper 4 is applied as a braking force in the direction opposite to the movement of the door 3 when the opening angle is in the range of 45 ° to 90 ° and the opening angle is in the range of 120 ° to 150 °. Act on 3. That is, the operation range of the damper 4 is in a range where the opening angle is 45 ° to 90 ° (operation range D) and in a range where the opening angle is 120 ° to 150 ° (operation range C) (see FIG. 9).

On the contrary, when closing the door 3, the repulsive force of the damper 4 is controlled in the direction opposite to the movement of the door 3 when the opening angle is in the range of 90 ° to 45 ° and the opening angle is in the range of 30 ° to 0 °. It acts on the door 3 as power. That is, the operation range of the damper 4 is a range where the opening angle is 45 ° to 90 ° (operation range D) and a range where the opening angle is 0 ° to 30 ° (operation range E) (see FIG. 9).

When the opening angle is in the range of 30 ° to 45 ° and the opening angle is in the range of 90 ° to 120 °, the repulsive force of the damper 4 does not reach the damper arm 5 and the burden on the user is reduced.

As described above, the braking force of the damper 4 acts on the door 3 before the door 3 is completely opened and before it is completely closed. Thereby, the impact force transmitted to the main body 1 of the heating cooker can be mitigated by the damper 4 when the side opening door 3 is opened and closed.

Even when the door 3 is half open, the braking force of the damper 4 acts on the door 3. Thereby, in order to cool the inside of the heating chamber 2 after cooking, the door 3 can be left open in a half-open state.

In the present embodiment, a protruding third contact portion 11c is provided in the recess 3a of the door 3, and the front end 5c of the damper arm 5 has a shape shown in FIG. However, the present disclosure is not limited to this, and other configurations may be used as long as they have functions similar to those of the third contact portion 11c and the front end 5c.

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 3a Recess

4,54 Damper 5

Damper arm

5a, 5c Front end

5b Rear end

6,56

Door arm

7,57

Roller

8,58 Spring 9 Rotating shaft 10 Handle 11 Contact member 11a 1st contact part 11b 2nd contact part 11c 3rd contact part 61 Convex part 62 Actuation lever 64 Connection lever 66 Electrical component 68 Pin

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 provided on the main body and having a front end and a rear end facing the damper;
The door has a contact member configured to contact the front end;
When the door rotates about the rotation axis, the door functions as a driving node, the abutting member or the front end functions as a cam, and the damper arm functions as a driven node. A cooking device configured such that a rear end presses the damper.
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 between the fully closed state and the fully opened state.
The cooking device according to claim 1, wherein the contact member is configured to function as the cam.
The contact member has a first contact portion and a second contact portion;
In the fully closed state of the door, only the first contact portion contacts the front end of the damper arm,
In the fully open state of the door, only the second contact portion contacts the front end,
5. The structure according to claim 4, wherein the first contact portion and the second contact portion are in contact with the front end at an opening angle of the door between the fully closed state and the fully open state. The cooking device described.
The cooking device according to claim 1, wherein the front end is configured to function as an opposite cam.