JPS6219509U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a partial side view of a microwave oven embodying this idea, particularly showing the installation configuration of a pair of switches on both the front and back surfaces of the hook, Figure 2 is a perspective view of the entire microwave oven, and Figure 3 is a similar electronic A vertical cross-sectional view of the main part of the microwave oven, Fig. 4 is a partial side cross-sectional view showing the door locking structure and the operating structure of the related switch, and Fig. 5 is a partial side view showing a part of Fig. 4 seen from the back side. , Fig. 6 is a partial sectional view taken along line A-A in Fig. 1, Fig. 7 is a side sectional view of the door opening operation button and operation lever, and Fig. 8 is a control circuit diagram of this microwave oven. , FIG. 9 is a partial side sectional view showing the operating state of FIG. 4. 1...Frame, 2...Heating cooking chamber, 7...Door, 12
...Magnetron, 13...Latching body constituting the board for mounting the switch, 13a, 13b...Latching part, 15
A, 15B... Latch, 19... First latch switch, 22... Door switch, 23... First operating lever,
23c, 23d...Switch operating section, 35, 36...
Fixed piece, 35a, 36a...key part, 37, 38...
Through hole.

Claims (1)

[Scope of claim for utility model registration] A latch 1 on the door 7 that covers the heating cooking chamber 2 so that it can be opened and closed.
5A and 15B, and when the door 7 is closed, the latches 15A and 15B engage with the latches 13a and 13b provided on the frame 1 to hold the door 7 in the closed state. In the microwave oven, there is a synthetic resin substrate 13 fixed to the frame 1 near the hooks 13a and 13b, and the substrate 13 is arranged on both sides of the substrate 13 so as to be substantially opposed to each other, and is closed for the operation of the magnetron 12. a pair of switches 19 and 22, which are rotatably supported on the frame 1 or the base plate 13, and are engaged with the latch 15A and rotated in one direction; and the operating lever 23. are both the switches 19 and 2.
2 and a pair of switch operating parts 23 corresponding to each other.
c, 23d, and both switches 19, 22 are closed by the switch actuating parts 23c, 23d when the actuating lever 23 is rotated due to engagement with the latch 15B; There are switches 19 and 2 on both the front and back sides of the
Fixing pieces 35 and 36 are integrally formed to abut on the circumferential surface of the switches 19 and 2, and to engage parts of the switches 19 and 22 with hooks 35a and 36a protruding from their tips to securely hold the switches 19 and 22. and said key part 3
Through holes 37 and 38 are formed in the substrate 13 so as to face the holes 5a and 36a, and fixing pieces 35 on the front and back sides are formed.
, 36 are slightly shifted from each other so as not to be located in the same area, and the facing positions of the front and back switches 19, 22 are slightly displaced, and both switch actuating parts 23c, 23d of the operating lever 23 actuate the switches 19, 22. The switch 19 operates the switch actuating parts 23c and 23d so that they open and close almost simultaneously.
, 22.