KR100288936B1 - Door opening and closing device of cooker using light wave - Google Patents

Abstract

The present invention relates to a door opening and closing device of a cooker using light waves. According to the present invention, when the door handle 21 is pulled, the handle lever 30 is operated and the power applied for generation of light waves is cut off, and the locked state of the button lever 45 for operating the upper latch 50 is released. When the button switch 40 is pressed, the fastening state of the upper and lower latches 50 and 50 'is released so that the door 20 can be opened. According to such a configuration, in a cooker using a high power light wave, an accident due to residual light waves due to sudden opening of the door may be prevented in advance.

Description

Door opening and closing device of cooker using light wave

The present invention relates to a cooker using light waves, and more particularly, to a door opening and closing device for opening and closing the door to shield the cooking chamber of the cooker to perform cooking using a high power light wave, such as a halogen lamp.

Various kinds of apparatuses have been proposed to date as heating apparatus for cooking food. The most primitive heating mechanism is a container of a predetermined shape in direct contact with a heat source, and the desired cooking is performed by putting a food to be cooked in such a container and applying heat.

In addition, many kinds of cooking apparatuses have been developed that use electric energy directly or indirectly. As an example, there is a microwave oven using microwaves as a heating source. The microwave oven generates microwaves using electricity, and the microwaves penetrate the object to be cooked, cause molecular motion inside the food, and heat is generated and heated by the molecular motion. Such a microwave oven is widely spread due to its simple configuration and ease of use, such as a thawing process for melting frozen food, or a device for heating food such as milk to a predetermined temperature. It is used.

On the other hand, unlike the above-mentioned microwave oven, as another heating apparatus, a heating apparatus using only light waves as a single heating source has been proposed. That is, as disclosed in US Pat. No. 5,036,179, a cooking apparatus capable of performing a specific cooking desired using a lamp emitting visible light and infrared light is disclosed. That is, a lamp having a wavelength of at least 90% of the radiant energy of 1 μm or less is used as a heating source, and by appropriately using visible light and infrared rays emitted from such a lamp, a specific cooking can be performed in large quantities.

Specifically, the difference between the wavelengths of the infrared light and the visible light is represented by the difference in the heating method by the different wavelengths applied to the object, and by the difference, the outside and the inside of the object are heated in different forms. According to such a light-wave heating apparatus, for example, in the case of a pizza, it is possible to obtain a cooking state in which the outside has a crunchy heating degree and the inside is sufficiently heated and softly heated with a predetermined moisture. .

As described above, in order to use a lamp that simultaneously emits light waves, specifically visible light and infrared light, as a heating source for heating a cooking object, it must be a lamp capable of sufficiently providing visible light such as infrared light. In the case of use, since the amount of light generated by the lamp is considerable, there is a characteristic that light remains for about 2 seconds even after the current is cut off.

On the other hand, in a microwave oven to cook using a microwave, the door is used to shield the inside of the cooking chamber from the outside to prevent leakage of microwaves used in cooking. At this time, the configuration for opening and closing the door is shown in FIG.

As shown in the drawing, the latch member 3 having the latches 3a and 3b formed above and below is elastically supported by the spring 7 inside the door 2. Then, a latch board 5 having latching portions 5a and 5b latched to the latches 3a and 3b, respectively, is provided on the front side of the microwave oven, and the latching boards 5a and 5b are disposed around the latching portions 5a and 5b. Door switches 4a and 4b which are turned on and off by the latches 3a and 3b are provided.

In the state shown in FIG. 1, the door 2 is closed, and the latches 3a and 3b are locked to the latching portions 5a and 5b, and the upper and lower doors are opened by the latches 3a and 3b. The switches 4a and 4b are in the on state. In such a state that the door 2 is closed, power may be applied to the magnetron and the high voltage transformer for generating the microwaves. In this state, the heating is performed by the supply of the microwaves.

As the user pulls the door handle 1 in this state, the latches 3a and 3b are released from the latching portions 5a and 5b, and the latches 3a and 3b release the door switches 4a and 4b. Turned off. When the door switches 4a and 4b are turned off, the supply of current for microwave generation is stopped and the door 2 is opened.

However, in such a conventional structure, the door 2 is opened as soon as the latches 3a and 3b are released. Of course, the current supplied to the inside of the microwave oven is turned off at the moment the door 2 is opened, so that microwaves are not generated. However, in a cooker using light waves as described above, the opening and closing structure of the door is not preferable. not.

In other words, the amount of light generated by the lamp that generates light waves is relatively large, and even if the power supply is interrupted, the user opens the door because the light remains inside the cooking chamber even though it is a short time (about 2 seconds). At the same time, when the door is opened, the user may feel visually uncomfortable. That is, the user's eyes are dazed by the remaining light remaining in the cooking chamber, so that the user may feel uncomfortable, and in some cases, the eyes may be damaged. In addition, eye damage due to residual heat cannot be excluded.

Accordingly, an object of the present invention is to solve the conventional problems as described above, and to provide a door opening and closing structure of a cooker in which the opening is delayed for a time when light waves remaining in the cooking chamber may disappear when the door is opened. .

Another object of the present invention is to provide a safe door opening and closing structure capable of primarily blocking the current provided to the generation of light waves for cooking when the door is opened.

Figure 1 shows the configuration of the door opening and closing device of the microwave oven according to the prior art

Figure 2 is a cross-sectional view showing the configuration of a preferred embodiment of the door opening and closing device of the cooker using the light wave according to the present invention.

3 is a plan view showing the main portion of the embodiment of the present invention.

4 is an operational state diagram showing that the embodiment of the present invention is operated.

Explanation of symbols on the main parts of the drawings

10: main body 15, 15 ': locking portion

20: door 21: door handle

30: handle lever 34: spring

35: locking lever 36: guide groove

37,37 ': Jaw 38: Guide pin

40: button switch 41: spring

45: button lever 46: guide slot

47,47 ': Hanging groove 50,50': Upper, lower latch

52: engaging jaw 53: first interlocking portion

53 ': second interlocking part 55: interlocking lever

57: return member

According to a feature of the present invention for achieving the above object, the present invention provides a door for opening and closing the cooking chamber provided in the main body, a latch member for fastening / releasing the door to the main body, and the main body of the latch member Opening means for controlling the power supply for fastening / releasing and the generation of light waves, and locking means for locking the opening means so that the opening means is not operated first when the door is opened.

The latch members are provided at upper and lower portions of the door, respectively, and are latched by a locking member provided in the main body so that the door is fastened to the main body and performs door opening and closing detection and power supply control.

The latch members are interlocked with each other by an interlocking lever.

The latch member is installed on the door rotatably at a predetermined angle about the hinge axis, the locking jaw for fastening to the locking member is provided at one end, and the other end is for interlocking with the opening means and the locking means. Interlocks are provided respectively.

The opening means is composed of a button switch installed to be exposed to the outer surface of the door, and a button lever which is interlocked with the interlocking portion of the latch member while linearly moving with the button switch, the latch member by the operation of the button switch It is rotated to be released from the locking member.

The locking means includes a handle lever installed on the door handle of the door, and a locking lever interlocked with the operation of the handle lever and regulating the operation of the opening means.

The locking lever is provided with a guide part for guiding the movement of the button lever, and the locking jaw is formed to be caught in the locking groove of the button lever, so that the locking jaw is released from the locking groove only when the locking lever is rotated by a predetermined angle. do.

According to the present invention having the configuration as described above, the opening of the door is delayed until the remaining light is extinguished when the door is opened in the cooker using light waves, which prevents inconvenience and safety accidents of the user due to the light waves. There is an advantage.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the door opening and closing apparatus of the cooker using the light wave according to the present invention as described above will be described in detail.

2 shows a preferred embodiment of the present invention. According to this, the engaging levers 15 and 15 'are provided at one side of the front surface of the main body 10. Of course, a cooking chamber (not shown) is provided inside the main body 10.

Then, the door 20 for opening and closing the cooking chamber of the main body 10 is provided. The door 20 is rotated by a predetermined angle around a hinge axis (not shown) on one side to shield the cooking chamber from the outside during cooking and open after cooking is completed. Reference numeral 21 denotes a door handle that is held by the user when the door 20 is operated.

Such a door 20 is provided with a structure such that the door 20 is not opened arbitrarily. That is, the upper and lower latches 50 and 50 'which are engaged by the locking levers 15 and 15' of the main body 10 are installed at positions on the door 20 corresponding to the locking levers 15 and 15 '. do.

Here, the configuration for the operation of the upper and lower latches 50 and 50 'will be described. First, the door handle 21 is provided with a handle lever 30 which is operated by the user by pulling the door handle 21. The handle lever 30 is located inside the door handle 21, and the upper end portion 31 is connected to the locking lever 35 and the interlocking pin 31P to be described below. The lower end 32 of the handle lever 30 is supported by a spring 34. At this time, the spring 34 pulls the handle lever 30 toward the door 20. In addition, a guide slot 33 is formed at the lower end 32 to control the movement trajectory of the handle lever 30. The guide slots 22 formed on the door handle 21 are positioned in the guide slot 33 to guide the movement of the door handle 21.

The locking lever 35 connected to the upper end 31 of the handle lever 30 is rotated by a predetermined angle about the interlocking pin 31P by the operation of the handle lever 30. The locking lever 35 is provided with a guide groove 36 to guide the button lever 45 to be described below. The guide grooves 36 are formed to be inclined at a predetermined angle with respect to the longitudinal direction of the locking lever 35, and locking jaws 37 and 37 'are formed at upper and lower left and right ends thereof, respectively. In addition, a guide pin 38 is formed in the guide groove 36 to control a movement trajectory of the button lever 45. The locking lever 35 is also interlocked with the first interlocking portion 53 of the upper latch 50 so that the upper and lower latches 50 and 50 'are rotated by a predetermined angle to cut off the power applied for the generation of light waves. Be sure to

The button switch 40 is formed above the door handle 21. The button switch 40 is preferably installed in a position operable by the thumb when the user holds the door handle 21 with his right hand. The button switch 40 is supported by the spring 41 has a tendency to protrude to the outside of the door 20.

A button lever 45 is formed at the rear end of the button switch 40. The button lever 45 is provided with a configuration for interlocking with the locking lever 35. That is, the button lever 45 is formed with a guide slot 46 in which the guide pin 38 is located. The guide slot 46 is interlocked with the guide pin 38 to regulate the movement trajectory and the stroke of the button lever 45.

In addition, the locking grooves 47 and 47 'are formed to engage the locking jaws 37 and 37' of the locking lever 35. The locking grooves 47 and 47 'and the locking step 37 and 37' are engaged with each other when the door 20 is closed, thereby preventing the button switch 40 from operating. One end of the button lever 45 as described above is provided with an interlocking inclined portion 48 interlocked with the second interlocking portion 53 ′ of the upper latch 50.

Meanwhile, the upper and lower latches 50 and 50 'are installed in the door 20. Since the upper latch 50 and the lower latch 50' have the same configuration, the upper latch 50 is referred to. This will be described. The upper latch 50 is installed on the door 20 so as to be rotated by a predetermined angle about the hinge pin 51, and a locking jaw 52 that is caught by the locking member 15 is formed at a tip end thereof. In addition, a first interlocking portion 53 interlocked with the locking lever 35 is formed at a rear end portion, and the first interlocking portion 53 interlocks with the button lever 45 in a direction substantially perpendicular to the first interlocking portion 53. Two interlocking portions 53 'are formed.

The upper and lower latches 50 and 50 'are connected to each other by an interlocking lever 55. When the upper latch 50 is operated, the lower latch 50' is also operated together. The interlocking lever 55 is supported by the return member 57 so that the upper and lower latches 50 and 50 'are rotated in the direction in which the locking jaw 52 is caught by the locking member 15 at all times. Have a tendency.

Reference numerals 17, 18, and 19 are sensing sensors which are turned on and off in conjunction with the upper and lower latches 50 and 50 '.

Meanwhile, in addition to the preferred embodiment as described above, as another embodiment, the solenoid or the motor may be operated by the operation of the handle lever 30 to cut off power first, and may be configured to open the door after a predetermined time. .

Hereinafter, the door opening and closing device according to the present invention having the configuration as described above will be described with reference to FIGS. 3 and 4.

First, the state of FIG. 3 is a state in which the door 20 is closed. At this time, the handle lever 30 is pulled by the spring 34 so that the locking lever 35 connected to the upper end 31 of the handle lever 30 is positioned vertically, as shown in FIG. do.

Accordingly, the locking jaws 37 and 37 'of the locking lever 35 are engaged with the locking grooves 47 and 47' of the button lever 45 so that the button lever 45 is restrained and cannot move. do. Therefore, in this state, the button lever 45 is not moved even when the button switch 40 is pressed.

In such a state, in order to open the door 20, the user pulls the door handle 21 while holding the door handle 21. The handle lever 30 is also pulled at the same time as the door handle 21 is pulled out. That is, when the handle lever 30 is pulled while overcoming the elastic force of the spring 34, the locking lever 35 connected to the upper end 31 of the handle lever 30 rotates. Accordingly, the locking lever 35 is rotated as shown in FIG. 4, so that the locking jaws 37 and 37 'of the locking lever 35 are engaged with the locking grooves 47 and 47' of the button lever 45. Escape from

At the same time, the front end portion of the locking lever 35 presses the first interlocking portion 53 of the upper latch 50 so that the upper latch 50 is rotated by a predetermined angle. Thus, the upper latch 50 is separated from the sensor 19. In addition, the lower latch 50 'is also rotated together by the interlocking lever 55 so that the contact with the detection sensor 17 is released. However, the upper and lower latches 50 and 50 'are not completely released from the locking member 15, and thus the door 20 cannot be opened. In this case, when the detection sensors 17 and 19 are turned off, the supply of power supplied to the cooker for generating light waves is cut off.

In the above state, when the user presses the button switch 40, the button lever 45 presses the second interlocking portion 53 'of the upper latch 50 so that the upper latch 50 The hinge pin 51 is rotated counterclockwise on the drawing. Therefore, the locking jaw 52 of the upper latch 50 is completely released from the locking member 15. At the same time, the lower latch 50 'is also operated by the interlocking lever 55 to be released from the locking member 15'. In addition, the contact with the detection sensor 18 is also released.

In this case, the door 20 may be opened from the main body 10. On the other hand, once the door 20 is opened as described above, the upper and lower latches 50 and 50 'may be engaged with the locking members 15 and 15' again by the elastic force of the return member 57. It can be rotated to a position, the button lever 45 is returned to its original position by the restoring force of the spring 41 when the user releases the hand.

In addition, the handle lever 30 also returns to its original position by the restoring force of the spring 34 when the user releases his hand. Therefore, when the user closes the door 20 in such a state, the upper and lower latches 50 and 50 'are caught by the locking members 15 and 15' while overcoming the elastic force of the return member 57. After the return, the door 20 is not opened by the elastic force of the return member 57 again.

The door opening and closing device of the cooker using the light wave according to the present invention as described above in detail, in opening the door, operating the handle lever to cut off the supply of power and at the same time release the locked state of the button lever. Since the door is opened only when the button lever is operated, there is an advantage that an accident can be prevented due to residual light waves in the cooking chamber.

Claims (7)

A door for opening and closing the cooking chamber provided in the main body, A latch member for fastening / releasing the door to the main body; Opening means for controlling the power supply for fastening / releasing the latch member to the main body and generating light waves; The door opening and closing device of a cooker using light waves, characterized in that it comprises a locking means for fastening the opening means so that the opening means is not operated first when the door is opened. The method of claim 1, The latch members are provided at upper and lower portions of the door, respectively, and are caught by a locking member provided in the main body to lock the door to the main body, and at the same time to perform door opening and closing detection and power supply control. Door opening and closing device of the cooker. The method of claim 2, The latch member is a door opening and closing device of a cooker using light waves, characterized in that the interlocking lever interlocked with each other. The method of claim 2, The latch member is installed on the door rotatably at a predetermined angle about the hinge axis, the locking jaw for fastening to the locking member is provided at one end, and the other end is for interlocking with the opening means and the locking means. The door opening and closing device of the cooker using light waves, characterized in that the interlocking unit is provided. The method of claim 1, The opening means is composed of a button switch installed to be exposed to the outer surface of the door, and a button lever which is interlocked with the interlocking portion of the latch member while linearly moving with the button switch, the latch member by the operation of the button switch Door opening and closing device for a cooker using a light wave, characterized in that the rotation is released to be released from the locking member. The method of claim 1, The locking means is a handle lever installed on the door handle of the door; The door opening device of the cooker using light waves, characterized in that the locking lever is interlocked with the operation of the handle lever and regulating the operation of the opening means. The method according to claim 5 or 6, The locking lever is provided with a guide part for guiding movement of the button lever, and a locking jaw is formed to be caught by the locking groove of the button lever, so that the locking jaw is released from the locking groove only when the locking lever is rotated by a predetermined angle. Door opening device for a cooker using a light wave characterized in that.