JPH058925Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a heating plate attachment/detachment device for a cooking appliance, and in particular, a heating plate attachment/detachment device for a cooking appliance equipped with a separate hot plate, a so-called hot top plate. It is related to.

[Conventional technology and its problems]

A hottop plate is a cooking device with a hot plate attached to an annular frame, and there are two types: a fixed type in which the hot plate is fixed to the frame, and a separate type in which the hot plate is detachably attached. Separate hot top plates require an electrical connection mechanism in addition to a mechanical attachment/detachment mechanism, and conventionally, both mechanisms have been provided separately. Therefore, when attaching and detaching the hot plates, it is necessary to perform both mechanical attaching and detaching operations and electrical connection operations, and complete connection cannot be achieved by performing only one operation. Therefore, for example, if you only unlock the mechanical attachment/detachment mechanism of the hot plate and lift the hot plate without removing the electrical connection mechanism, the heater terminals may be pried, causing problems that may cause electrical failure. Ta.

Therefore, the object of this invention is to provide an attachment/detachment device that can perform mechanical attachment/detachment and electrical connection at the same time.

[Means for solving problems]

In order to solve the above problems, this idea
A slide plate biased toward the center of the frame is provided inside the frame, and a portion of the slide plate is provided with an engaging pawl having a cam surface inclined downwardly toward the frame center, and a pair of engagement claws are provided on the slide plate. Attach the socket, fix another pair of sockets that fit complementary to the above socket on the underside of the hot plate, and attach the sockets to the sockets on the underside of the hot plate opposite to the cam surface of the above-mentioned engaging claw so that the sockets come into contact with the above-mentioned cam surface. The structure includes a protrusion for retracting the slide plate, and an engagement recess into which the engagement pawl fits when the slide plate returns due to its biasing force.

[Effect]

When the hot plate is mounted, when the positioned hot plate is pushed in, the protrusion on the hot plate side hits the cam surface of the slide plate, causing the slide plate to retreat. When the protrusion passes over the cam surface, the slide plate is pushed back, and as a result, the engagement pawl with the cam surface fits into the engagement recess on the hot plate side.
A mechanical connection is made. Further, the socket on the slide plate side and the socket on the hot plate side fit together to establish an electrical connection.

〔Example〕

The hot top plate of the illustrated embodiment consists of an annular frame 1, a hot plate 2 detachably attached to the inner surface of the annular frame 1, and three legs 3 attached to the frame 1.

As shown in FIGS. 3 and 4, a slide plate 4 is attached inside the frame 1 and is slidable toward the center of the frame 1. As shown in FIGS. A U-shaped mounting frame 5 with open top and front surfaces is provided on both sides of the slide plate 4, a vertical engagement groove 6 is formed on the inner surface of the mounting frame 5, and a female socket inserted into the mounting frame 5 is provided. 7 into the above-mentioned engagement groove 6.
Further, a notch 8 is provided in a part of the mounting frame 5, and an electric cord 9 is drawn through the notch 8. The female socket 7 has contacts 10 (see FIG. 8).

A spring 11 is interposed between the rear end of the mounting portion 5 and the frame 1, and urges the slide plate 4 toward the center of the frame. Further, a regulating elongated hole 12 is formed in the slide plate 4 in the sliding direction, and the stroke of the slide plate 4 is regulated by inserting a stopper 13 provided on the frame 18 into the elongated hole 12.

Further, a holder 15 of the heat-sensitive rod 14 is fitted into a central portion of the elongated hole 12 . An adjustment rod 16 is protruded from this holder 15, and this adjustment rod 16
passes through another elongated hole 17 provided in the slide plate 4 and is connected to a gear transmission mechanism (not shown) inside the leg 3. The gear transmission mechanism engages with an adjustment dial 18 that is partially exposed from the outer peripheral surface of the leg 3. Therefore, when this adjustment dial 18 is operated, the heat-sensitive temperature of the thermostat inside the holder 15 is adjusted. In addition, a spring 1 attached to the frame 1 is connected from the holder 15 to the base of the heat-sensitive rod 14.
9 is pressed.

Further, at the inner end of the slide plate 4, a pair of engaging claws 20 are provided between the mounting frame 5 and the holder 15. The engaging pawl 20 has a cam surface inclined inward of the frame 1 on its upper surface.

With the holder 15 and the female socket 7 mounted on the slide plate, a cover 22 is placed over the top of the slide plate 4, and both ends of the cover 22 are fixed to the frame 1 with screws 23.

The outer end of the slide plate 4 extends through the frame 1 into the inside of the leg 3, and a shaft 25 protruding from the extending portion 24 is inserted into the upper surface of the leg 3 through a long hole 26 provided in the leg 3. The operating piece 27 is protruded from the shaft 25.
is installed. When you operate this operation piece 27,
The slide plate 4 and the female socket 7 mounted thereon slide within a certain stroke.

A pair of male sockets 26 are fixed to the lower surface of the heat plate 2, as shown in FIG.
7' is provided. Male socket 26 is contact 2
8 and a female socket 7 around the contact 28.
A guide portion 29 is provided for receiving the. Further, the male socket 26 has a protrusion 30 formed on its lower surface.
Further, an engagement recess 31 is formed in the upper part of the projection 30.

In addition, an inverted U-shaped groove 3 is provided in the heat sensitive portion 27'.
2 is formed, and the heat-sensitive rod 14 is brought into pressure contact with this groove 32.

Note that a spring 33 that supports the hot plate 2 is provided on the bottom surface of the frame 1.

The hot top rate of the embodiment has the above configuration, and its operation will be explained next.

Now, when installing the hot plate 2 from a separated state as shown in Fig. 5, after positioning the hot plate 2 and pushing it up, it will engage as shown in Fig. 6. Since the cam surface 21 of the pawl 20 is pressed by the protrusion 30, the slide plate 4 compresses the spring 11 and retreats. When the protrusion 30 passes over the engaging claw 20, the spring force of the spring 11 causes the slide plate 4 to
is pushed back, and the engaging claw 20 fits into the engaging recess 31 as shown in FIG. 7, thereby locking the hot plate 2. This mechanically connects the hot plate 2.

Further, when the slide plate 4 is pushed back, the female socket 7 fits into the guide portion 29 of the male socket 26,
Both contacts 10, 28 abut and are electrically coupled. In this case, it is desirable to insert the female socket 7 into the mounting portion 5 with a slight margin (backlash) in order to absorb mounting errors of the sockets 7 and 26.

Note that due to the above connection, the heat-sensitive rod 14 is also pressed into the groove 32 at the same time.

When removing the hot plate 2, when the operating piece 27 is pulled outward and the slide plate 4 is retreated, the mechanical and electrical connections are released and the hot plate 2 is pushed up by the spring 33.

〔effect〕

As described above, this invention provides an engaging pawl with a cam surface for mechanical coupling on the sliding plate, and also attaches a socket for electrical coupling to the sliding plate, thereby providing mechanical and There is the convenience of being able to perform electrical coupling and disconnection at the same time.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the embodiment, Fig. 2 is a front view of the same, Fig. 3 is a partially enlarged cross-sectional plan view of the same, and Fig. 4 is a part of the same with the heat-sensitive rod and its holder omitted. FIG. 5 is an exploded perspective view showing a partially assembled state in cross section, and FIGS. 6 to 8 are partially sectional views showing the same. 1... Frame, 2... Heat plate, 3... Legs, 4...
...Slide plate, 5...Mounting part, 7...Female socket, 10...Contact, 11...Spring, 20...
...Engaging claw, 21...Cam surface, 22...Cover, 2
6...male socket, 28...contact.

Claims (1)

[Scope of utility model registration request] A slide plate biased toward the center of the frame is provided inside the frame, and a part of the slide plate is provided with an engaging pawl having a cam surface inclined downward toward the center of the frame. , and fix the other pair of sockets that fit complementary to the above socket on the underside of the hot plate.
A projection on the socket on the lower surface of the hot plate opposite to the cam surface of the engaging claw, which causes the slide plate to retreat when it comes into contact with the cam surface, and a projection on the upper part of the projection when the slide plate returns due to its biasing force; A heating plate attachment/detachment device for a cooking appliance, comprising an engagement recess into which the engagement claw fits.