JPH0554913U - microwave - Google Patents

Abstract

(57) [Summary] [Purpose] Change the opening / closing direction of the door to any direction. [Structure] A first hinge device 5 which is capable of opening and closing a left end of a lower edge portion of a door 4 around two horizontal and vertical axes.
Attach to the range body via. A second hinge device 10 which can be opened and closed about a horizontal axis is provided between the right end of the lower edge of the door 4 and the range main body. A third hinge device 13 is provided between the left end of the upper edge of the door 4 and the range main body so as to be openable and closable about a vertical axis. A horizontal engaging pin 27 that can be engaged with and disengaged from the second hinge device 10 on the right end side of the lower edge of the door 4.
To provide. The third hinge device 13 is provided on the left end side of the upper edge of the door 4.
A vertical engaging pin 32 that can be engaged with and disengaged from is provided. Door 4
The horizontal engaging pin 27 is engaged with the second hinge device 10, the vertical engaging pin 32 is disengaged from the third hinge device 13, and the horizontal engaging pin 27 is disengaged from the second hinge device 10 and vertically. An operation knob 34 for engaging the engagement pin 32 with the third hinge device 13 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a microwave oven including a range main body having a heating chamber and a door attached to the range main body so as to be openable and closable.

In this specification, the front side (door side) of the microwave oven is referred to as the front and the opposite side is referred to as the rear. The top, bottom, left and right are viewed from the front.

[0003]

[Prior Art]

 Conventionally, as a microwave oven, for example, the left side edge portion of the door is attached to the left side edge portion of the range main body through a hinge device that can be opened and closed about a vertical axis (horizontal opening method), and a microwave oven under the door. It is known that the edge portion is attached to the lower edge portion of the range main body through a hinge device that is capable of opening and closing around a horizontal axis (vertical opening method).

[0004]

[Problems to be solved by the device]

 In the case of a microwave oven with a side-opening door, even if the microwave oven is installed at a slightly higher place, the door will not interfere when food is taken in or out of the heating chamber of the microwave oven. If a refrigerator, cupboard, etc. are placed next to each other, there is a problem that the refrigerator etc. becomes an obstacle when opening and closing the door. In addition, there is no place to temporarily store food before or after putting it in the heating chamber, which is inconvenient. On the other hand, in the case of a microwave oven with a vertical opening type door, the above problem can be solved, but even if the microwave oven is installed at a slightly higher place, the door interferes and the food is taken in and out of the heating chamber of the microwave oven. There is the problem of becoming difficult.

An object of the present invention is to provide a microwave oven that solves the above problems.

[0006]

[Means for Solving the Problems]

 A microwave oven according to the present invention is a microwave oven including a range main body having a heating chamber and a door that is openably and closably attached to the range main body. It is attached to the range body via the first hinge device that can be opened and closed about two vertical axes, and the horizontal axis is centered between the left or right end of the lower edge of the door and the range body. A second hinge device that can be opened and closed is provided, and a third hinge device that is openable and closable about a vertical axis is provided between the one end of the upper edge of the door and the range main body. A first engaging member capable of engaging and disengaging the second hinge device is provided on the other end side of the lower edge portion, and a third hinge device is provided on the one end side of the upper edge portion of the door. A second engaging member capable of engaging and disengaging is provided. The first engagement member is engaged with the second hinge device and the second engagement member is disengaged from the third hinge device, and the first engagement member is engaged with one of the range main body and the door. Is provided with an operating member that disengages the second hinge device from the second hinge device and engages the second engaging member with the third hinge device, and the door is horizontal when the first engaging member engages with the second hinge device. The door is opened and closed about the axis, and the door is opened and closed about the vertical axis when the second engaging member is engaged with the third hinge device.

[0007]

[Action]

 When the first engagement member is engaged with the second hinge device and the second engagement member is disengaged from the third hinge device by operating the operation member, the door is moved to the first hinge device and the second hinge device. The hinge device works to open and close around the horizontal axis, and the system opens vertically. On the other hand, when the second engaging member is engaged with the third hinge device and the first engaging member is disengaged from the second hinge device by operating the operating member, the door is moved to the first hinge device and the first hinge device. 3 The hinge device works to open and close about the vertical axis, which results in a side-opening system.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 8 shows the entire microwave oven, and FIGS. 1 to 7 show the respective parts. In the following description, the front, back, top, bottom, and left and right sides of the door are based on the closed state.

In FIG. 8, the microwave oven has a heating chamber (2) and a range main body (1) provided with an operation panel (3) on the front surface, and a microwave oven attached to the range main body (1) in a freely openable and closable manner. A door (4), and the left end of the lower edge of the door (4) is opened and closed about two horizontal and vertical axes by means of a first hinge device (5). ) Is attached.

As shown in detail in FIG. 2, the first hinge device (5) includes two upper and lower plate-like rotating members (6) (7) connected to each other so as to be rotatable about a horizontal axis. It is composed of a left plate-like rotating member (8) rotatably connected to the upper rotating member (6) about a vertical axis. The lower rotating member (7) is fixed to the left edge of the lower edge of the rear surface of the door (4), and the left rotating member (8) is attached to the lower edge of the front edge of the left surface of the range body (1). It is fixed.

A second hinge device (10) that can be opened and closed about a horizontal axis is provided at the right end of the lower edge of the range main body (1). The second hinge device (10) includes a rotating member (11) that rotates about a horizontal axis that is one of the opening and closing centers of the first hinge device (5). A through hole (12) is formed at the tip of the rotating member (11) (see FIG. 1). A third hinge device (13) is provided at the left end of the upper edge of the range main body (1) and can be opened and closed about a vertical axis. The third hinge device (13) includes a rotating member (14) that rotates about a vertical axis that is the other center of the opening and closing of the first hinge device (5). A through hole (15) is formed at the tip of the rotating member (14).

As shown in FIG. 1 and FIGS. 3 to 7, the door (4) includes a frame-shaped door frame (16) and a door plate (17) fitted in the door frame (16). It has and. The peripheral edge of the central portion (17a) of the door plate (17), which occupies most of it, is in close contact with the rear surface of the inward flange (16a) of the door frame (16), and the peripheral edge of this central portion (17a). A rear protrusion (17b) is integrally formed on the rear side, and an outer protrusion (17c) is integrally formed on the rear edge of the rear protrusion (17b). A large number of holes (18) for seeing through the heating chamber are formed in the central portion (17a). The front surface of the central portion (17a) is covered with a translucent screen (19) attached to the front surface of the inward flange (16a) of the door frame (16) at its peripheral edge.

The right end of the lower edge and the upper end of the left edge of the outwardly projecting portion (17c) of the door plate (17) are respectively the rotating member (11) and the first hinge of the second hinge device (10). Through holes (21) and (22) through which the rotating member (14) of the three-hinge device (13) passes are formed. A projection (23) protruding rearward is provided on the right end of the upper edge of the door plate (17). The protrusion (23) is fitted into a hole (1a) formed in the range main body (1) when the door (4) is closed, so that the opening (4) of the door (4) is switched. It has a function of positioning and operating a latch switch (not shown).

A strip plate (24) that is long in the left-right direction and is slidable in the left-right direction is arranged along the lower surface of the rearward protruding portion (17b) on the lower side of the door plate (17). The strip-shaped plate (24) is smoothly and firmly supported by the guide members (25) having an L-shaped cross section which are screwed to the left and right ends of the lower edge of the front part of the central part (17a) of the door plate (17). It is supported so that it can slide without hitting. A cut-and-bent portion (24a) protruding downward is formed at a portion of the strip plate (24) between the guide members (25), and the cut-and-bent portion (24a) and the left guide member (25) are provided. A tension coil spring (26) for biasing the strip-shaped plate (24) to the left is attached between the spring and the downward protruding spring support portion (25a). Lower bent portions (24b) (24c) are formed at both left and right ends of the strip plate (24), and the lower bent portion (24c) at the right end protrudes to the right and has the second hinge device (10). A horizontal engaging pin (27) (engaging member) fitted in a through hole (12) formed in the rotating member (11) is fixed.

A strip-shaped plate (28) that is vertically long and slidable in the vertical direction is arranged along the left side surface of the rearward protruding portion (17b) on the left side of the door plate (17). The strip plate (28) is smoothly rattled by guide members (29) having an L-shaped cross section, which are screwed to the upper and lower ends of the left side edge of the front surface of the central portion (17a) of the door plate (17). It is supported so that it can slide without moving. A bent portion (28a) protruding leftward is formed between the guide members (29) of the strip plate (28) .The cut bent portion (28a) and the lower guide member (29) are formed. A tension coil spring (31) for urging the strip-shaped plate (28) downward is attached between the tension coil spring (31) and the left protruding spring support portion (29a). Left and right bent portions (28b) and (28c) are formed at both upper and lower ends of the strip plate (28). The left bent portion (28b) at the upper end projects upward and the third hinge device (13). The vertical engaging pin (32) (engaging member) fitted in the through hole (15) formed in the rotating member (14) is fixed.

A cam (33) having a substantially elliptical shape when viewed from the front is arranged on the left side of the strip plate (24) elongated in the left-right direction and below the strip plate (28) elongated in the up-down direction. Horizontal shafts (33a) (33b) are integrally formed on the front and rear surfaces of the cam (33), and the cam (33) is lowered by the front and rear horizontal shafts (33a) (33b). It is rotatably attached to the left protrusion (25b) provided on the guide member (25) on the left side of the edge and the outer protrusion (17c) of the door plate (17). The front horizontal shaft part (33a) penetrates the inward flange (16a) of the door frame (16) and projects to the front thereof, and the operation knob (34) (operation member) is fixed thereto. When the long diameter side of the cam (33) is oriented in the left-right direction by turning the operation knob (34) (see solid lines in Fig. 6 and Fig. 7), the downward bend (24b) at the left end of the strip (24) is cammed. It is pushed to the right by (33), the strip plate (24) is moved to the right against the biasing force of the tension coil spring (26), and the strip plate (28) moves to the tension coil spring (31). The horizontal engaging pin (27) is moved downward by the urging force, so that the horizontal engaging pin (27) fits into the through hole (12) formed in the rotating member (11) of the second hinge device (10), and the vertical engaging pin The (32) is adapted to come out from a through hole (15) formed in the rotating member (14) of the third hinge device (13). Also, by turning the operation knob (34) so that the long diameter side of the cam (33) is oriented vertically (see chain lines in Fig. 6 and Fig. 7), the left bent portion (28c) at the lower end of the strip plate (28) is ) Is pushed upward by the cam (33), the strip plate (28) is moved upward against the biasing force of the tension coil spring (31), and the strip plate (24) is pulled by the tension coil spring (26). The vertical engaging pin (32) is fitted into the through hole (15) of the rotating member (14) of the third hinge device (13) by the urging force of the horizontal engaging pin (32). 27) is adapted to come out of the through hole (12) of the rotating member (11) of the second hinge device (10).

In such a configuration, when the door (4) is closed, the operation knob (34) is rotated to move the horizontal engagement pin (27) to the rotating member (11) of the second hinge device (10). ) And the vertical engagement pin (32) is pulled out from the through hole (15) of the rotating member (14) of the third hinge device (13), the vertical hinge pin (32) of the first hinge device (5) is removed. The lower rotation member (7) rotates downward about the horizontal axis with respect to the upper rotation member (6) and the left rotation member (8), and the rotation member of the second hinge device (10). (11) rotates around the horizontal axis, and the door (4) opens and closes about the horizontal axis and opens as shown by the solid line in FIG. Therefore, even if a refrigerator, a cupboard, etc. are arranged adjacent to each other on the left side of the microwave oven, the open door (4) does not get in the way. It can also be temporarily placed on the open door (4) before or after the food is put into the heating chamber (2).

On the other hand, when the door (4) is closed, the operation knob (34) is turned to insert the vertical engagement pin (32) into the through hole of the rotating member (14) of the third hinge device (13). When the horizontal engagement pin (27) is inserted into the through hole (12) of the rotation member (11) of the second hinge device (10), it is rotated leftward of the first hinge device (5). The member (8) rotates leftward with respect to the upper rotating member (6) and the lower rotating member (7) about the vertical axis, and the rotating member (14) of the third hinge device (13). Rotates about the vertical axis, and the door (4) can be opened and closed about the vertical axis to open as shown by the chain line in FIG. Therefore, even if the microwave oven is placed at a slightly higher place, the open door (4) does not interfere with the loading and unloading of food into and from the heating chamber (2).

In the above embodiment, the operation knob (34) is provided on the door (4), but it may be provided on the operation panel (3) of the range body (1).

[0021]

[Effect of the device]

 According to the microwave oven of the present invention, as described above, the door can be easily switched between the vertical opening method and the horizontal opening method. Therefore, the opening / closing method can be arbitrarily changed depending on the installation location of the microwave oven and the usage method. Can be Therefore, it is possible to prevent the door from interfering with the loading and unloading of food into and from the heating chamber, and the refrigerator and the like adjacent to the microwave oven from interfering with the opening and closing of the door. Moreover, the vertical opening method allows the food to be temporarily placed on the open door before or after it is put into the heating chamber.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view seen from the front of a microwave oven door.

FIG. 2 is a perspective view of a first hinge device.

FIG. 3 is a front view of a door.

FIG. 4 is an enlarged sectional view taken along line IV-IV of FIG.

5 is an enlarged sectional view taken along line VV of FIG.

FIG. 6 is a partially cutaway enlarged front view showing a left side portion of the door.

FIG. 7 is a partially cutaway enlarged front view showing a lower portion of the door.

FIG. 8 is a perspective view showing the entire microwave oven.

[Explanation of symbols]

 1 Range Main Body 2 Heating Chamber 4 Door 5 First Hinge Device 10 Second Hinge Device 13 Third Hinge Device 27 Horizontal Engagement Pin (First Engagement Member) 32 Vertical Engagement Pin (Second Engagement Member) 34 Operation Knob (Operation member)

Claims (1)

[Scope of utility model registration request] 1. A microwave oven provided with a range main body having a heating chamber and a door attached to the range main body so as to be openable and closable, wherein one of the left and right ends of the lower edge of the door is horizontal and vertical. Is attached to the range main body via a first hinge device that is openable and closable about two axes, and is openable and closable about the horizontal axis between the range body and either the left or right other end of the lower edge of the door. A second hinge device is provided, and a third hinge device that is openable / closable about a vertical axis is provided between the one end of the upper edge portion of the door and the range main body, and the third hinge device is provided at the lower edge portion of the door. A first engaging member capable of engaging and disengaging the second hinge device is provided at the other end side, and a second engaging device capable of engaging and disengaging the third hinge device at the one end side of the upper edge portion of the door. An engaging member is provided,
The first engagement member is engaged with the second hinge device, the second engagement member is disengaged from the third hinge device, and the first engagement member is engaged with the second engagement device in either one of the range main body and the door. An operating member is provided which disengages from the hinge device and causes the second engaging member to engage with the third hinge device, and when the first engaging member engages with the second hinge device, the door opens and closes about a horizontal axis. A microwave oven in which the door opens and closes about a vertical axis when the second engaging member engages with the third hinge device.