JPS5910207B2 - Switch devices such as electric cookers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a switch device, and an object of the present invention is to easily open and close a changeover switch connected to a heating element without using any extra parts.

Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes an electric cooking device body, in which a large-diameter disk-shaped hot plate 2 is arranged approximately in the center of the top surface, and a pair of handles 3 are provided on both sides.
3, and an operating section S for controlling a heating element (not shown) provided in the hot plate 2 is disposed on the front surface.
4 is a cooking container that is detachably placed on the hot plate 2;
It consists of a pot 6 having handles 5 and 5 and a lid 8 having handles T and 7. Food to be cooked is stored in the pot 6 for normal heating cooking, low-temperature continuous cooking such as oden, or bread making. It allows for low-temperature, fixed-time cooking such as fermentation.

The heating element has a diameter of approximately 830 mm as shown in the electrical circuit diagram in Figure T.
It consists of a parallel circuit of a high-temperature heating element 9 of W and a low-temperature heating element 10 of about 250W. The operating section S is located at the base line 11'
A horizontally elongated display window 11 approximately in the center of which a transparent glass 11" having a shape is arranged, and a timer knob 1 connected to a timer.
2, a panel frame 14 on which a temperature control knob 13 etc. connected to a temperature regulator are disposed, a movable cable 15 that moves in conjunction with the rotation of the timer knob 12, and an indicator needle 16 erected on the movable cable. , a display body 17 displaying the name of the item to be cooked, which rotates in conjunction with the rotation of the temperature control knob 13, and the like.

A horizontally elongated notch 18 is formed on the front surface of the cooking device main body 1, and an L-shaped contact portion 21 is formed on the side surface of a reinforcing panel auxiliary frame 20, which has a see-through window 19 facing the display window 11. The corresponding contact portion 21 is inserted into the cutout portion 18 and fixed to the inside of the cooking device main body 1 with screws 22. Although a time scale for displaying time is displayed on the lower surface of the transparent window 19 of the panel auxiliary frame 20, it may also be displayed on the lower surface of the display window 11 of the panel frame 14. Furthermore, it is necessary to display it in view of the configuration described later. Nor. Further, the side surface of the panel frame 14 is attached to the contact portion 2 on the surface of the cooking device main body 1 using screws 23, 23.
Fix it so that it passes through 1. The panel frame 14 is attached to the main body 1
After fixing the display cover 24 to the
3. Hide 23 so that it cannot be seen from the outside. Reference numeral 25 denotes a temperature regulator, which includes a regulator main body 26 equipped with a gas-filled bellows (not shown), a rotating body 21 for rotating the display meter T, a temperature rotating shaft 28, and the rotating shaft 28. The temperature control knob 13 for rotating the temperature control knob 13 and its heat-sensitive portion at the tip thereof are disposed at the bottom of the heat plate 2, and the bellows portion is driven in response to temperature changes of the heat plate 2 to control the opening and closing of the temperature contact piece 29. It is composed of a capillary tube 30 and the like, and the temperature adjustment knob 1
3 clockwise, the set holding temperature can be increased, and the display body 17 can be raised via an interlocking part 31 formed on one side of the display body 17 in conjunction with the rotating body 27. On the other hand, by rotating the temperature adjustment knob 13 counterclockwise, the set holding temperature can be lowered, and the display body 17 can be rotated through the rotary body 27 and the interlocking part 31. can be rotated downward.

Reference numeral 32 denotes a spring-type timer for setting the time for energizing the high and low temperature heating elements 9 and 10 constituting the heating element, which includes a timer main body 33, a bell 34 that signals the end of cooking, a timer rotation shaft 35, and the rotation shaft. Pulley fixed through 35
36 and the timer knob 12, for example, when the timer knob 12 is rotated clockwise, a spring device (not shown) inside the timer body 33 is energized with stored power that returns counterclockwise. With this configuration, the time can be set for a maximum of about 60 minutes, and when the set time has elapsed by automatic return by the mainspring device, the timer contact piece 35 is opened to cut off the power to the heating element.

Further, when the timer knob 12 is manually rotated counterclockwise from the 0FF point (i.e., the position ρ of B), the timer contact piece 35 closes the circuit without applying any return storage force to the mainspring device. Even if the timer knob 12 is released from this state, it does not return to its original state, and the timer contact piece 35 maintains a closed circuit state and continuously energizes the heating element. Rollers 365, 36', 36', and 36' are attached to the panel auxiliary frame 20 at locations near the corners, and the rollers 365, 36', 36', and 36' are mounted over the rollers 36', 365, 365, and 36' and the pulley 36. A movable cable 15 is stretched, and the indicator needle 16 is also attached to the movable cable 15, and the indicator needle 1 is attached to the movable cable 15 in response to clockwise rotation of the timer knob 12.
The movable cable 15 is strung around the pulley 36 so that the movable cable 15 moves to the right.

Reference numeral 37 denotes a changeover switch disposed on the panel auxiliary frame 20 so as to be located near the temperature regulator 25, and controls the energization of the high temperature heating element 9 by opening and closing a changeover contact piece 38 installed inside. The operation is performed by a pressing body 39 which is rotatably attached to the outside and is loosely provided so as to always close the switching contact piece 38. When this pressing body 39 pushes the pressing piece 40, The switching section 3
8 is set to be opened.

Reference numeral 41 denotes a transmission rod having a substantially mouth-shaped shape, which is pulled in the direction of the timer 32 by a spring 42 so as not to press the pressing body 39 all the time, and comes into contact with a stopper 43, and has a cylindrical shape for easy sliding. The left hanging piece 45 is supported by the shaped supports 44, 44, and hangs down near the pulley 36, and the right hanging piece 46 is bent at four places to fit between the temperature regulator 25 and the pressing body 39. hanging down.

47 is a first protrusion erected on the surface of the pulley 36;
By rotating the timer knob 12 from the off B position to the continuous P position, the left hanging piece 45 of the transmission rod 41 is pushed to the right and the right hanging piece 46→pressing body 39→pressing piece 40→switching contact piece 38 In conjunction with this, the switching contact piece 38 is opened.

Reference numeral 48 denotes a second protrusion formed on the rotating body 27, which controls the temperature control knob 13 in a so-called low temperature area A of 30°C to 60°C.
When the switch is rotated to the position, the second protrusion 48 pushes the right hanging piece 46 to the right and opens the switching contact piece 38 in the same manner as described above.

Next, the display body 17 will be explained.
Reference numeral 7 has a cylindrical shape, and on its surface are arranged the names of the items to be cooked, each with a preset cooking temperature and cooking time, which can be adjusted by rotating the temperature control knob 13 clockwise. When the display 17 is rotated to match the name of the desired cooking item with the base line 1V, the tongue in the regulator body 26 is automatically adjusted to set the temperature according to the desired cooking item. ing.

Further, on the surface of the display 17, a low temperature cooking area L is formed in a horizontal direction, displaying the name of a low temperature cooking product such as bread fermentation, and the user attempts to cook the item displayed in this low temperature cooking area L. Sometimes, the temperature adjustment knob 13 is rotated to align the low-temperature cooking zone L with the base line 11' as described above, but at this time, the second protrusion 48 is located in the low-temperature zone A; As a result, the second protrusion 48 moves the right hanging piece 46 of the transmission rod 41 to the right against the spring 42, and moves in conjunction with the pressing body 39→pressing piece 40→switching contact piece 38, and the low-temperature heating Only the body 10 generates heat. Further, on the left side of the display 17, a zone T for boiling stew, oden, etc. is displayed, and when you want to cook in this area, turn off the timer knob 12 and turn it continuously counterclockwise from position B to P. When rotated, the indicator needle 16 is located in the simmering area T, and the first protrusion 47 pushes the transmission rod 41 to the right against the spring 42, causing the switching contact piece 38 to move as described above. is opened, and only the low-temperature heating element 10 generates heat, and the mainspring device does not work, resulting in continuous energization.

In such a configuration, when it is desired to maintain a constant temperature in the temperature range of 30°C to 60°C and cook for a predetermined time, that is, when fermenting bread, first adjust the temperature as shown in Fig. 6. Rotate the control knob 13 slightly clockwise to select the low temperature cooking area L of the display 17 (indications such as bread forming fermentation, bread primary fermentation, etc. are displayed in this area).

) is aligned with the base line 11'. Then, as described above, the second protrusion 48 connects to the right hanging piece 46 of the transmission rod 41.
is pressed to open the switching contact piece 38 and energize only the low temperature heating element 10, and by opening and closing the temperature contact piece 29, the temperature is maintained at an appropriate constant temperature within 30°C to 60°C. Next, turn the timer knob 12 in the same clockwise direction and align the indicator hand 16 with the position labeled "Bread Forming Fermentation". At that time, the first protrusion 47 will automatically move to the 30 minute position. The rice is then fermented and cooked at a low temperature for 30 minutes using the spring mechanism. Also, when you want to cook continuously at a suitable temperature, for example when you want to cook oden, first rotate the temperature adjustment knob 13 and adjust the display 1.
The display name of "Oden" in step 7 is aligned with the base line 11'.

Then, the second protrusion 48 is set so that the temperature is automatically controlled to 140°C, which is suitable for the temperature of the boiling pot, that is, the tongue inside the regulator body 26 is set. Next, when the timer knob 12 is turned counterclockwise and set from the position B to the continuous position P, the indicator needle 16 will be located in the simmering area T, and the user will be able to see what is being cooked at a glance. I'm starting to know if there are any. As described above, the present invention provides a second protrusion, one of which is in contact with the first protrusion provided on the pulley, which is pivoted on the rotating shaft of the timer, and the other, which is provided on the rotating body, which is pivoted on the rotating shaft of the temperature regulator. Since the switch connected to the heating element is controlled to open and close by a transmission rod that comes into contact with the protrusion, energization to the heating element can be controlled simply by rotating the timer or temperature controller to an appropriate position. It is possible to provide a switch device for an electric cooker that can be operated automatically and is easy to use.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the electric cooking appliance of the present invention, Fig. 2 is an enlarged exploded view of the main parts of Fig. 1, Fig. 3 is an enlarged plan view of the main parts of Fig. 1, and Figs. 4 to 6 are the main parts. FIG. 3 is a plan view showing various embodiments of the invention, and FIG. 7 is an electrical circuit diagram of the invention. 9,10...Heating element, 25...Temperature regulator, 27...Rotating body, 28,35...
・Rotation axis, 32... Timer, 36...
・Pulley 1, 38...Switch switch, 41...
...Transmission rod, 47, 48...protrusion.

Claims (1)

[Claims] 1. A transmission rod in which one side is in contact with a first protrusion provided on a pulley that is pivoted on the rotation shaft of the timer, and the other side is driven by a second protrusion provided on a rotating body that is pivoted on the rotation shaft of the temperature regulator. A switch device for an electric cooker, etc., characterized in that the opening/closing control of a changeover switch connected to a heating element is controlled by a switch.