JPH027366Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Industrial Application Field) The present invention relates to a high-frequency heating cooking device for cooking food, and particularly relates to an operation locking device in this high-frequency heating cooking device.

(Prior Art) Conventionally, a magnetron operation locking device in this type of high-frequency heating cooking apparatus is shown in FIGS. 1 and 2.
It is configured as shown in the figure.

That is, in FIGS. 1 and 2, a side-opening door b is provided on the front of a box-shaped case body a forming an oven, and can be opened and closed by grasping its handle _b1 . An operation panel d equipped with cooking operation buttons c is attached to the front of the case body a near the door b. Also, the opening/closing door b
As shown in FIG. 2, on the inside of the handle _b1 , a door hook e is provided which can be freely engaged and detached from a keyhole f formed on the front surface of the case body a. In the case main body a communicating with the keyhole f located in the movement path of e ₁ , the slider member g in the shape of an inverted boot is given a floating habit in the vertical direction by the elasticity of the coil spring h and slides. It is fitted so that it can move freely. moreover,
A movable contact piece i ₁ of a cooking switch i that energizes a magnetron (not shown) extends in the hoistway of the flange g ₁ of this slider member g. It is designed to be able to operate at g ₁ . Furthermore, the lower part of the slider member g forms a tapered part _g2 , and this tapered part _g2 is connected to the operating lever k which is mounted on the case body a near the slider member g with a support shaft j. It extends from the locking part _k1 with distances α and β.

Although the operating lever k is given a right-handed rotation behavior around the spindle j by the elasticity of the coil spring, it is kept in a horizontal state by the stopper m when the door is opened. I'm starting to do that.
Further, on one side of the operating lever k in the vicinity of the locking portion k ₁ , one end portion c ₁ of the cooking operation button c is arranged so as to be able to be pushed.

Therefore, when the door is closed, the magnetron operation locking device in the above-mentioned high frequency heating cooking apparatus is designed to release the lock and energize the magnetron in the following manner.

That is, when the opening/closing door b is closed, the door hook e of the opening/closing door b engages with the key hole f, and the door hook e presses down the hook portion e ₁ of the slider member g against the elasticity of the coil spring h. Then, it is held in pressure contact with the locking portion _k1 of the operating lever k as shown by the chain line.

Next, after setting the cooking time (by timer) and cooking temperature (by magnetron output) in advance, when the above-mentioned cooking operation button c is pushed horizontally, one end part c ₁ of this cooking operation button c will activate the above-mentioned operation. Since one side of the lever k is pushed against the elasticity of the coil spring, the operating lever k rotates to the left around the spindle j, and as a result, the slider member g is moved by the pressing force of the door hook e. Since the slider member g is lowered, the stirrup _g1 of the slider member g turns on the cooking switch i and energizes the magnetron that heats the oven.

On the other hand, after a certain cooking time has elapsed, the power supply to the magnetron is cut off by the action of a timer, etc., and when the opening/closing door b is opened after heating and cooking is completed, the slider member g, operating lever k, and cooking operation button c are , and return to the position shown by the solid line in FIG.

(Problem to be Solved by the Invention) However, the operation locking device of the above-mentioned high-frequency heating cooking device requires the engagement of the operating lever k to smoothly push the cooking operation button c when the cooking operation button c is pushed. Since α and β are formed in advance at the stop part k ₁ for a required period, it is not only difficult to adjust α and β during this time, but also, for example, if door b is suddenly closed with momentum. , the entire case body a vibrates due to the impact of this opening/closing door b, and the cooking switch i is erroneously activated by pushing the slider member g without pushing the cooking operation button c. Therefore, there is a risk of energizing the magnetron, which poses a safety problem.

The present invention has been developed in view of the above-mentioned circumstances, and it eliminates the problem between the locking part by the operating lever and the slider member to facilitate assembly and adjustment. The purpose of the present invention is to provide a high-frequency heating cooking device that aims to improve safety by preventing malfunctions even when subjected to shocks and vibrations.

[Structure of the idea]

(Means for Solving the Problems and Their Effects) The present invention has a door hook keyhole formed in a case body provided with an opening/closing door, and a slider member having a horizontal locking portion in the case body communicating with the keyhole. A cooking switch is provided in the hoistway of this slider member so as to be able to rise and fall freely, a lock cover is vertically fixed to the case body near the slider member, and a long hole is provided in the lock cover. is formed by penetrating the horizontal locking portion, a lock release member is horizontally and rotatably mounted on the lock cover and the stationary member, and the side and lower surfaces of the horizontal locking portion are attached to the lock release member with springs. An engaging portion is formed that is biased into engagement, and an actuating piece is formed in a part of the lock release member so as to be pushed by one end of the cooking operation button, and the slider Since the horizontal engaging portion of the member is held in pressure contact with the side surface and the upper surface of the engaging portion, malfunctions will not occur even when the door is closed due to shock or vibration.

[Example of idea]

Hereinafter, the present invention will be described with reference to an illustrated embodiment.

In FIGS. 3 and 4, reference numeral 1 denotes a box-shaped case body equipped with an opening/closing door, and a door hook 2 of the opening/closing door engages with a part of the front side of the case body 1. A keyhole 3 is formed in the case main body 1 which communicates with the keyhole 3, and a slider member 4 in the shape of an inverted boot is given a rising habit by the elasticity of a coil spring 5 and can be freely raised and lowered. It is provided. Further, a flange 4a is formed on the upper part of the slider member 4, and a magnetron (not shown) is provided in the hoistway of the flange 4a.
A movable contact piece 6a of the cooking switch 6 that energizes is extended. Furthermore, a horizontal locking part 4b is bent horizontally at the lower part of the slider member 4 and extends so as to be located on the back surface (inner side) of the operation panel of the case body 1, A flat lock cover 7 is vertically fixed to the case body 1 near the slider member 4. Furthermore, an elongated hole 8 is formed in the middle of the lock cover 7 in a vertical direction and passes through the horizontal locking portion 4.
The upper lock cover 7 and the case body 1
Each support shaft 9a of the lock release member 9 is rotatably mounted horizontally between the lock release member 9 and the stationary member 1a. Further, the lock release member 9 close to the lock cover 7 is provided with an engaging portion 9b bent into an L shape so as to hold the horizontal locking portion 4b. A coil spring 10 is stretched between the joint portion 9b and the lock cover 7, and the engaging portion 9b is in contact with the side surface of the horizontal hooking portion 4b (see FIG. 4). Furthermore, as shown in FIG.
is formed, and during this time, when the opening/closing door is closed, as shown in Fig. 5, 〓γ is eliminated,
The horizontal engaging portion 4b of the slider member 4 is held by the side surface and the upper surface of the engaging portion 9b so as not to move inadvertently. Furthermore,
An actuation piece 9c that protrudes diagonally upward is formed in a part of the lock release member 9, and one end of a cooking operation button 11 provided on the operation panel is provided on the front surface where this actuation piece 9c is located. 11a is provided so that it can be pushed.

The operation of the present invention will be explained below.

When heating and cooking with the door closed, when the food to be cooked is inserted into the oven and the door is closed, the door hook 2 of the door engages with the keyhole 3, and the hook of the door hook 2 engages with the key hole 3. The portion 2a presses down the slider member 4 against the elasticity of the coil spring 5, and as shown in FIG. It is held in a pressed state. In this case, even if the opening/closing door is inadvertently closed violently and shock or vibration is applied to the entire case body 1, the horizontal locking portion 4b will not touch the side surface and top surface of the engaging portion 9b as described above. Therefore, since the slider member 4 is held stationary, there is no risk that the flange 4a of the slider member 4 will accidentally turn on the cooking switch 6 and energize the magnetron.

Next, after setting the cooking time and cooking temperature, when the cooking operation button 11 is pushed horizontally, one end 11a of the cooking operation button 11 releases the actuation piece 9c of the lock release member 9 by the elastic force of the coil spring 10. 6, the lock release member 9 rotates to the right around both support shafts 9a, thereby causing the horizontal locking portion 4b to engage. The slider member 4 is released from the cooking switch 6 and is lowered by the pressing force of the door hook 2, so that the flange 4a of the slider member 4 presses the cooking switch 6.
It turns on and the magnetron that heats the oven is energized (see Figure 7).

On the other hand, after a certain cooking time has elapsed, the magnetron is de-energized by the action of a timer or the like, and when the opening/closing door is closed after heating and cooking, the slider member 4
The lock release member 9 and the cooking operation button 11 are
It is designed to return to the original position shown in the figure.

Next, in another embodiment of the present invention shown in FIG. 8, the end surface _9b1 of the engaging part 9b of the lock releasing member 9 is placed on one side of the horizontal locking part 4b of the slider member 4, so that the end surface 9b1 is placed on one side of the horizontal locking part 4b of the slider member 4 when the lock is released. , which are formed so as to make surface contact, thereby allowing the slider member 4 to slide smoothly.

[Effect of idea]

As described above, according to the present invention, the key hole 3 of the door hook 2 is formed in the case body 1 provided with an opening/closing door, and the slider having the horizontal locking part 4b in the case body 1 communicating with the key hole 3 is provided. The member 4 is provided with a rising habit so as to be able to rise and fall freely, a cooking switch 6 is provided in the hoistway of the slider member 4 to operate it, and a lock cover 7 is vertically fixed to the case body 1 near the slider member 4. , a long hole 8 is formed in the lock cover 7 passing through the horizontal locking part 4b, and a lock release member 9 is horizontally and rotatably mounted on the lock cover 7 and the stationary member;
An engaging portion 9b is formed on this lock releasing member 9 so that the side and lower surfaces of the horizontal locking portion 4b are biased and engaged by a spring 10, and an operating piece 9c is formed on a part of the lock releasing member 9. Since the cooking operation button 11 is positioned so as to be pushed at one end, there is no risk of malfunction even if the opening/closing door is accidentally closed violently and the entire case body 1 is subjected to shock or vibration. Not only can this be eliminated and safety can be improved, but since the configuration is simple, assembly and adjustment are easy, and labor can be saved in mass production.

[Brief explanation of the drawing]

Fig. 1 is a front view of an already proposed high-frequency heating cooking device, Fig. 2 is a side view of an operation lock device incorporated in the above-mentioned high-frequency heating cooking device, and Fig. 3 is a high-frequency heating cooking device of the present invention. A perspective view of the operation locking device incorporated in the device, FIG. 4 is a side view of the same as above,
5 to 7 are diagrams for explaining the operation of the present invention, and FIG. 8 is a diagram showing another embodiment of the present invention. 1...Case body, 2...Door hook, 3...
Keyhole, 4...Slider member, 6...Cooking switch, 7...Lock cover, 9...Lock release member, 11...Cooking operation button.

Claims (1)

[Scope of utility model registration request] A keyhole for a door hook is formed in a case body provided with an opening/closing door, and a slider member having a horizontal locking portion is provided in the case body communicating with the keyhole so as to be able to rise and fall freely by giving rise to a rising habit, and the slider member can be raised and lowered. A lock cover is fixed vertically to the case body near the slider member, a long hole is formed in the lock cover passing through the horizontal locking part, and the lock cover and the stationary A lock release member is horizontally and rotatably mounted on the member, and an engaging portion is formed on the lock release member so that the side surface and the lower surface of the horizontal locking portion are urged by a spring and engaged. . A high-frequency heating cooking device, characterized in that an actuation piece is formed in a part of the lock release member so as to be pushed by one end of the cooking operation button.