JPH0226422Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electric cooking appliance equipped with a cooking plate locking mechanism that facilitates the removal of the cooking plate that is detachably placed on the cooking appliance body.

[Prior art and problems]

Since the cooking plate of an electric cooker needs to be cleaned after cooking, there are types of electric cooking appliances in which the cooking plate can be removed from the main body of the cooker.

In such an electric cooker with a removable cooking plate, the cooking plate is fixed to the main body of the cooker so that the cooking plate does not wobble or come off from the main body of the cooker during cooking. There is a need for a cooking plate locking mechanism that allows for easy removal when needed.

Conventional techniques for such cooking plate locking mechanisms include the technique described in Japanese Utility Model Application Laid-Open No. 60-36830.

That is, as shown in FIG.
On the outer bottom surface of the cooking plate 2 placed inside the cooking plate 2, there are provided a heater 3 for heating the cooking plate 2, an insertion port 4 for connecting a plug, a boss 6 for attaching a heat shield plate 5, and a main body of the cooking device. A latch 8 is provided which engages with a lock button 7 which is movably mounted on the side wall of the lock button 1 in the front and back direction.

9 is a lid that is placed over the cooking board 2.

When the lock button 7 moves forward against the pressing force of the spring 10, it is disengaged from the latch 8.

The spring 11 is fitted into a spring seat 12 provided on the cooking device main body 1, and when the lock button 7 and the latch 8 are disengaged, the spring 11 pushes up the cooking plate 2 and pushes the cooking plate 2 upward. This is to make it easier to grasp the cooking plate 2 when taking it out.

13 is an opening provided in the cooking device main body 1 for inserting the insertion port 4.

To attach the cooking plate 2 to the main body 1 of the cooker, in the reverse operation of removing the cooking plate 2, insert the insertion port 4 into the opening 13, and then press the latch 8 against the spring 11 to the lock button 7. When pressed, a force is generated that pulls the lock button 7 into the same slope of the lock button 7 pressed by the slope 14 of the latch 8, and after the lock button 7 moves forward against the spring 10, the lock button 7 moves forward against the spring 10.
The latch 8 and the lock button 7 engage with each other due to the resilient force, and the cooking plate 2 is locked to the cooking device main body 1.

In the conventional technology as described above, attachment of the cooking plate 2 is carried out by only one action of placing the cooking plate 2 on the cooking device main body 1, but in order to remove the cooking plate 2 from the cooking device main body 1, the lock button 7 must be pressed. Two operations are required: the operation of disengaging the lock mechanism and the operation of removing the cooking plate 2.

However, it is desired that the operation of attaching and detaching the cooking plate 2 be as simple as possible.

This invention releases the engagement between the cooking plate and the cooking device body with just one action of taking out the cooking plate from the cooking device body.
Another object of the present invention is to provide an electric cooker that is equipped with a locking mechanism that engages the cooking plate with the cooking device main body with only one action of placing the cooking plate on the cooking device main body.

[Technical means to solve problems]

The present invention is an electric cooking device in which a cooking plate is removably placed inside the cooking device body, in which a protruding rod is vertically disposed on one side of the outer bottom surface of the cooking plate, and the inner bottom surface of the cooking device body is and a rotatable cam groove having a recess into which the tip of the protruding rod engages and disengages, and first and second cam grooves set at positions that maintain the cooking plate in a placed state and in a removable state, respectively. A locking mechanism is provided which includes a cam plate and a spring-loaded roller that selectively engages first and second cam grooves of the cam plate.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

Note that the same parts as in the conventional example are given the same reference numerals.

In FIG. 1, reference numeral 1 indicates a cooking device main body, and on the outer bottom surface of a cooking board 2 placed inside the main body, a heater 3 for heating the cooking board 2, a plug insertion port 4,
In addition to attaching the mounting bosses 6 of the heat shield plate 5, three recesses 15 (fifth
A positioning protrusion 16 is provided that fits into the (see figure), and a protrusion 19 is vertically provided on one side.

Further, on the inner bottom surface of the cooking device main body 1, a cooking plate locking mechanism consisting of a cam plate and a roller biased by a spring, which will be described below, is provided.

In other words, the second
In the figure, a recess 18 that engages with the protrusion 19;
A rotatable device having a first cam groove 22A set at a position where the cooking plate 2 is placed and a second cam groove 22B set at a position where the cooking plate 2 is kept in a removable state. It is composed of a cam plate 17 and a roller 21 which is pressed against the outer peripheral surface of the cam plate 17 by a spring 20 so as to selectively engage and disengage from each of the first and second cam grooves 22A and 22B. ing.

The spring 20 is restrained by a support shaft 24 provided on the lock mechanism main body 23, and the roller 21
is pressed against the outer peripheral surface of the cam plate 17.

A screw hole 25 provided above the locking mechanism body 23 is used for screwing in a screw 27 for attaching the lid 26 to the locking mechanism body 23 (see FIG. 4).

Hole 28 provided below the lock mechanism main body 23
A bolt 29 for attaching the locking mechanism main body 23 to the cooking device main body 1 is inserted (see FIG. 4).

In this embodiment configured as described above, in order to take out the cooking plate 2 from the main body of the cooking device, by lifting the cooking plate 2, the tip of the protrusion 19 is aligned with the cam plate 1.
The recess 18 of No. 7 is pulled up, and the cam plate 17 is
It rotates as shown in Figure 3.

As the cam plate 17 rotates, the roller 21 is pushed out from the first cam groove 22A against the spring 20, and then fits into the second cam groove 22B, and as shown in FIG. The recess 18 becomes a position where the tip of the protrusion 19 can be released.

In this way, the engagement between the cooking plate 2 and the cooking device main body 1 is released, and the cooking plate 2 is taken out from the cooking device main body 1 as it is.

Next, to attach the cooking plate 2 to the cooking device main body 1,
The positioning protrusion 16 of the cooking plate 2 is connected to the cooking device main body 1.
When the cooking plate 2 is placed on the cooking device main body 1 so as to be inserted into the recess 15, the tip of the protrusion 19 presses the recess 18 of the cam plate 17 downward, and the cam plate 17 is rotated as shown in FIG. Rotate as shown in Figure 2.

As the cam plate 17 rotates, the roller 21 is pushed out from the second cam groove 22B against the spring 20 and then fits into the first cam groove 22A.

The cam plate 17 is restrained by the roller 21 fitted in the first cam groove 22A and is in a stable locked state, and the cooking plate 2 is locked to the cooking device main body 1 so as not to move due to unexpected external forces during cooking. Ru.

As described above, the cooking plate 2 is locked to the cooking device main body 1 only by the action of placing the cooking board 2 on the cooking device main body 1, and the cooking board 2 is locked onto the cooking device main body 1 by only the action of lifting the cooking board 2. The lock is released.

〔effect〕

The present invention has the following effects.

(a) The lock mechanism locks and releases at the same time as the cooking plate is installed and removed;
It is not troublesome to engage and detach the cooking plate from the cooking device main body, and the handling is extremely convenient and user-friendly.

(b) The structure of the locking mechanism, which is composed of a rod, a cam plate, etc., is simple and has the advantage of being able to be manufactured in a small size.

[Brief explanation of drawings]

1 to 5 show embodiments of the present invention.
The figure is a longitudinal section of the cooker, Figures 2 and 3 are front views of the lock mechanism after installing and removing the cooking plate, Figure 4 is a sectional view taken along line A-A in Figure 2, and Figure 5 is the cooker. A perspective view of the main body, and FIG. 6 is a longitudinal sectional view of a conventional cooking device. 1...Cooker body, 2...Cooking plate, 3...Heater, 4...Inlet part, 5...Heat shield plate, 15...
Recess, 16... positioning protrusion, 17... cam plate, 18... recess, 19... protrusion, 20... spring, 21... roller, 22A... first cam groove,
22B...Second cam groove, 23...Lock mechanism main body.

Claims (1)

[Scope of utility model registration request] In an electric cooker of the type in which a cooking plate is removably placed inside the cooker main body, a protruding rod is provided vertically on one side of the outer bottom surface of the cooking plate, and the protruding rod is provided on the inner bottom surface of the cooking device main body. a rotatable cam plate formed with a recess into which the tip of the rod engages and disengages, and first and second cam grooves set at positions that maintain the cooking plate in a placed state and in a removable state, respectively; An electric cooking appliance characterized in that a locking mechanism is provided, comprising a spring-loaded roller that selectively engages each of the first and second cam grooves of the cam plate.