JPH0226424Y2 - - Google Patents

Description

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

[Conventional technology and problems]

Since the cooking plate of an electric cooking device needs to be cleaned after cooking, there is a type of electric cooking device in which only the cooking plate can be removed from the main body of the cooking device for cleaning.

In such an electric cooker with a removable cooking plate, it is necessary to fix the cooking plate to the main body of the cooker and remove the cooking plate so that the cooking plate does not wobble or become detached from the main body of the cooker during cooking. A locking mechanism is required that allows for easy removal.

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, a plug case 4 for connecting a plug, a boss 6 for attaching a heat shield plate 5, and a cooking device main body 1. A latch 8 is provided which engages with a lock button 7 which is movably mounted on the side wall of the body.

9 is a lid that is placed over the cooking plate 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 cooking plate 2 is pushed upward and the cooking plate 2 is taken out. This is to make it easier to grip the cooking plate 2 when cooking.

13 is a cooking device main body 1 into which the insertion case 4 is inserted.
This is an opening provided in the

In order to release the lock mechanism configured as described above and take out the cooking plate, press the lock button 7 to disengage the lock button 7 and the latch 8. The spring 11 tilts upward by the elastic force of the spring 11 using the contact point as a fulcrum, and protrudes from the outer periphery of the cooking device main body 1.
The cooking board 2 becomes easier to grip.

To attach the cooking plate 2 to the cooker main body 1, insert the insertion housing 4 into the opening 13 in the reverse operation of removing the cooking plate 2, and then press the latch 8 against the lock button 7 against the spring 11. If so, a force is generated on the slope 14 of the lock button 7 pressed by the latch 8 to pull the lock button 7, and the lock button 7 is pressed against the spring 1.
After moving forward against zero, the latch 8 and lock button 7 are engaged by the elastic force of the spring 10, and the cooking plate 2 is locked to the cooking device main body 1.

In the conventional technology as described above, in order to take out the cooking plate 2, it is difficult to insert a finger and grasp it because the gap between the cooking device main body 1 and the cooking plate 2 is narrow, and the spring 10 The cooking plate 2 is made easier to grip by springing up the cooking plate 2 using force.

However, it is desirable that the number of parts constituting the cooker be as small as possible in order to reduce the manufacturing cost of the cooker and to facilitate maintenance.

Furthermore, in order to increase the durability of the cooking appliance, it is necessary to increase the engagement area of the lock mechanism and make it difficult for the engagement portion to undergo wear and deformation.

The present invention provides a locking mechanism that has a small number of parts and is highly durable.

[Technical means to solve problems]

The present invention is an electric cooker in which a cooking plate is removably placed inside the cooker body, in which a latch is provided on the outer bottom surface of a heat shield plate provided on the cooking plate, and a latch is provided on the outer bottom surface of the heat shield plate provided on the cooking plate. Pins are provided protruding from both sides of the plug insertion case provided on one side, and a hook-shaped projection that engages with the latch is provided on the inner bottom surface of the cooking device main body, and the plug insertion case is provided on the side wall of the cooking device main body. A notch is provided on the side of the housing to form a groove that engages each of the pins, moves the cooking plate from side to side, engages and disengages the latch and the hook-shaped projection, and maintains the upright and inverted states. The lever is pivotally attached to both sides of the notch.

〔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 case 4, and a heat shield plate 5 are installed. In addition to attaching the mounting bosses 6, a plurality of L-shaped latches 14 are provided on the outer bottom surface of the heat shield plate 5 facing in the opposite direction to the plug insertion housing 4 side.

Further, an inverted L-shaped hook-shaped projection 15 that engages with each of the latches 14 is provided on the inner bottom surface of the cooking device main body.

A notch 16 is provided on the side wall of the cooking device main body 1 on the side of the plug insertion case 4.

As shown in FIGS. 5 and 6, the notch 16 communicates with the upper edge of the side of the cooking device main body 1 in order to facilitate the removal of the cooking plate 2.

A shaft 18 serving as a pivot point for a pair of levers 17 is provided on both inner surfaces of the notch 16 .

The pair of levers 17 are integrally formed with a grip handle 17a at their upper end edges.

As shown in FIGS. 3 and 4, the pair of levers 17 are provided with grooves 20 that respectively engage pins 19 protruding from both sides of the plug insertion housing 4.

Thus, when the levers 17 are rotated in the direction of arrow A to stand up, the lower end edges of the pair of levers 17 have a
A raised surface 17b that contacts a plate-shaped spring 21 provided on the lower surface of the notch 16 and a collapsed surface 17c that contacts the spring 21 when the lever 17 is tilted in the direction opposite to the arrow A direction are provided.

As the lever 17 rises, the cooking plate 2 moves forward and backward by a stroke S together with the pin 19 held in the groove 20, so that the latch 14 is engaged with and disengaged from the hook-shaped projection 15.

Since the intersection 17d of the rising surface 17b and the falling surface 17c forms an apex that moves away from the shaft 18, the lever 17 pressed by the spring 21 is stabilized when the rising surface 17b or the falling surface 17c is in contact with the spring 21.

In this embodiment configured as described above, in order to take out the cooking plate 2 from the state where the latch 14 and the hook-shaped protrusion 15 are engaged as shown in FIG. 1, the lever 17 is moved as shown in FIG. , and move the cooking plate 2 to the right by the stroke S.
4 is moved to the right by stroke S and the coronoid process 15
As the engagement with the cooking plate 2 is released, the gap D between the cooking plate 2 and the cooking device main body 1 shown in FIG. .

In this state, as shown in FIG. 4, since the groove 20 is open upward, the cooking plate 2 can be lifted upward as it is.

Next, in order to place the cooking plate 2 on the cooker main body 1 and lock it, the pin 19 is inserted into the concave groove 20.
Place it on the cooking device main body 1 so that it is inserted into the cooking device,
When the lever 17 is raised in the direction of arrow A as shown in FIG. 3, the latch 14 enters and engages the hook-shaped projection 15.

When the lever 17 is upright, the upright surface 17b is connected to the spring 21.
The cooking board 2 maintains a stable posture even when an unexpected external force is applied, and the cooking board 2 is kept in a locked state.

〔effect〕

The present invention has the following effects.

(a) The cooking plate is locked to the cooker body and is stably held against unexpected external forces unless the lever is collapsed against the spring pressure.

(b) The locking mechanism of the cooking plate has a simple structure and the number of parts is small, so manufacturing costs are low.

(c) An excessive load is not applied to the engaging portion of the lock mechanism, and the parts are not worn out, so that a highly durable cooking appliance can be obtained.

(d) The operation of attaching and removing the cooking plate from the main body is easy, and when the cooking plate is taken out, the gap between the cooking plate and the main body of the cooking device is widened, making it easy to take out the cooking plate.

[Brief explanation of the drawing]

1 to 6 show embodiments of the present invention, and the first
The figure is a vertical sectional view of the cooking device, Figure 2 is a plan view of the same as above, Figures 3 and 4 are front views of the main parts when the lever is raised and lowered, Figure 5 is a side view of the same as above, Figure 6 is a cooking device. A perspective view of the main body of the cooking device, and FIG. 7 is a sectional view of a conventional cooking device. 1... Cooker body, 2... Cooking board, 3... Heater, 4... Plug insertion case, 5... Heat shield plate, 14
... latch, 15 ... uncinate process, 16 ... notch,
17... Lever, 17b... Standing surface, 17c...
Lodging surface, 18...shaft, 19...pin, 20...concave groove, 21...spring.

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 cooking device body, a latch is provided on the outer bottom surface of a heat shield plate provided on the cooking plate, and a latch is provided on one side of the outer bottom surface of the cooking plate. pins are provided protruding from both sides of the plug insertion casing, and a hook-shaped projection is provided on the inner bottom surface of the cooking device main body to engage with the latch, and a hook-shaped projection is provided on the side wall of the cooking device main body on the side of the plug insertion casing. A notch is provided, a concave groove is formed that engages each of the pins, moves the cooking plate from side to side, and engages and disengages the latch and the hook-shaped protrusion, and a lever that maintains the upright and laid down states is formed in the notch. An electric cooker characterized by being pivoted on both sides of the cooker.