JPH0445660Y2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Field of Application] This invention relates to a heat-sensing device for a cooker, and more particularly to a heat-sensing device for a cooker equipped with a separate hot plate, that is, a so-called hot plate.

[Conventional technology]

A hot 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.
In such a hot plate, in order to control the temperature of the heater, a heat sensitive part is provided in a part of the hot plate, a heat sensitive rod provided integrally with an electric cord socket is inserted into the hole of the temperature sensitive part, The electric circuit is turned on and off by the operation of a thermostat installed inside the heat-sensitive rod holder.

[Problem that the invention attempts to solve]

In the case of the above-mentioned hot plate heat-sensitive device, there is no particular problem if it is a fixed type, but if it is a detachable type, a heat-sensitive rod is inserted into the hole in the heat-sensitive part, so when separating the heat plate, it is necessary to It is necessary to remove the heat-sensitive rod and then remove the heat plate. For this reason, if you forget to remove the heat-sensitive rod and try to remove the heat plate, there is a problem that the heat-sensitive rod may be twisted, deforming it, or causing an error in the thermal sensitivity.

Therefore, the purpose of this invention is to make it possible to attach and detach the heat plate regardless of whether the heat-sensitive rod is inserted or removed.

[Means for solving problems]

In order to solve the above problem, this invention provides an inverted U-shaped groove in the heat-sensitive part, a spring that contacts the heat-sensitive rod in a part of the frame opposite to the groove, and attaches the heat-sensitive rod holder to the frame. The structure is such that it is mounted with a margin of movement at least in the vertical direction.

[Effect]

When the heat plate is mounted on the frame, the heat-sensitive rod fits into the groove of the heat-sensitive part provided on the lower surface of the frame, and as a result of the heat-sensitive rod compressing the spring, the heat-sensitive rod is pressed against the heat-sensitive part. When you lift the heat plate, the heat-sensitive part separates from the heat-sensitive rod.

[Embodiment] The hot plate shown in the drawings is a separable hot plate consisting of a circular frame 1, a hot plate 2 detachably attached to the inner periphery of the circular frame 1, and legs 3 attached to the lower part of the frame 1.

A heat sensitive section 4 is provided on the lower surface of the heat plate 2.
As shown in FIGS. 3 and 4, this heat sensitive section 4 has an inverted U-shaped groove 5 formed in the diametrical direction.

Further, at the attachment part of one leg 3 of the frame 1, a heat-sensitive rod 7 integrated with the holder 6 is attached inside the frame 1, and the heat-sensitive rod 7 is made to protrude inward of the frame 1, and a groove in the heat-sensitive part 4 is attached. It is designed to fit with 5.

A thermostat is housed inside the holder 6 as described above, and an adjustment rod 8 that engages with a gear transmission mechanism provided inside the leg 3 projects from the holder 6. The gear transmission mechanism engages with an adjustment dial 9 that is partially exposed on the outer periphery of the leg 3.

The frame 1 is provided with a slide plate 10 that is slidable in the direction in which the heat-sensitive rod 7 projects, that is, in the diametrical direction of the frame 1. There is. On both sides of the holder 6, slide plates 10
A female socket 12 is attached to the top, and a spring 13 is interposed between the female socket 12 and the inner surface of the frame 1 to bias the slide plate 10 inward.
In addition, the slide of the slide plate 10 is
It is restricted by inserting a stopper 14 protruding into the elongated hole 15. In addition, the slide plate 10
A part thereof extends inside the leg 3, and an operating piece 18 is fixed to a shaft 17 protruding from a long hole 16 provided in the leg 3.

A cover 19 (see Fig. 6) is placed over the holder 6 and the female socket 12, and a part of the cover 19 is fixed to the frame 1 to prevent the holder 6, the female socket 12, etc. from slipping out. .

Further, inclined cams 20 are formed at the inner end of the slide plate 10 on both sides of the holder 6. This inclined cam 20 engages with protrusions 22 of male sockets 21 formed on both sides of the heat sensitive section 4.

Further, a spring 23 is attached to a portion of the frame 1 corresponding to the base of the heat-sensitive rod 7, so as to press against the heat-sensitive rod 7.

In addition, 24 in the figure is a spring that supports the hot plate 2 from its lower surface.

The embodiment of this invention has the above configuration,
Next, its effect will be explained.

First, in order to attach the hot plate 2 to the frame 1, after positioning the hot plate 2, when it is pushed down, the protrusion 22 hits the inclined cam 20, so the slide plate 10 is moved outward. fall back. When the protrusion 22 crosses the inclined surface of the inclined cam 20, the slide plate 10 returns inward, and the tip of the inclined cam 20 engages with the recess 25 (see FIG. 6) formed in the upper part of the protrusion 22. Then, the hot plate 2 is locked.

At this time, the heat-sensitive rod 7 is fitted into the groove 5 of the heat-sensitive portion 4, and the heat-sensitive rod 7 slightly pushes down the spring 23 to generate an elastic force, which causes the heat-sensitive rod 7 to be pressed against the groove 5. At this time, the heat-sensitive rod 7 and the holder 6 integrated therewith need to be moved slightly in the vertical direction, but as described above, the holder 6
is connected only to the gear transmission mechanism via the adjustment rod 8, and is not integrated with the slide plate 10 and cover 19. Therefore, a slight wobble occurs in the vertical direction, and the above movement is permitted. Further, since there is some wobbling in the movement in the left and right direction, even if there is a slight deviation in the positional relationship between the heat-sensitive rod 7 and the groove 5, the fitting will not be hindered.

In addition, when removing the hot plate 2, operate the operation piece 18 to move the slide plate 10 backward and move the inclined cam 2.
0 and the protrusion 22, the hot plate 2 can be lifted.

〔effect〕

As described above, since this invention has a structure in which the heat-sensitive rod is pressed into contact with the groove provided in the heat-sensitive portion, there is no need to remove the heat-sensitive rod when separating the heat plate. Further, since the heat-sensitive rod is biased by a spring, good adhesion with the heat-sensitive portion is maintained. Furthermore, there is no need to adopt a structure in which the heat-sensitive rod is inserted and removed, and the heat-sensitive rod can be permanently attached, so that damage to the heat-sensitive rod that occurs when the heat-sensitive rod is inserted and removed can be eliminated.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the embodiment, Fig. 2 is a longitudinal sectional front view of the same, Fig. 3 is a partially enlarged sectional view of the same, Fig. 4 is a sectional view taken along the - line in Fig. 3, and Fig. 5 is a longitudinal sectional view of the embodiment. A partially enlarged longitudinal sectional plan view of the same as above, FIG. 6 is an exploded perspective view showing a partial cross section with the heat-sensitive rod and its holder omitted, and FIG. 7 is an exploded perspective view showing a partial cross section of the assembled state. It is. 1... Frame, 2... Heat plate, 3... Legs, 4...
...Heat-sensitive part, 5... Groove, 6... Holder, 7... Heat-sensitive rod, 8... Adjustment rod, 10... Slide plate.

Claims (1)

[Scope of utility model registration request] In a heat-sensitive device for a cooker, a heat-sensitive plate is detachably mounted on a frame, a heat-sensitive rod inserted from outside the frame is brought into contact with a heat-sensitive part provided on the bottom surface of the heat plate, and a heat-sensitive rod holder is supported on the frame. , an inverted U-shaped groove is provided in the heat-sensitive section, a spring that contacts the heat-sensitive rod is provided in a part of the frame opposite to the groove, and the heat-sensitive rod holder is attached to the frame with at least enough movement in the vertical direction. A heat-sensitive device for a cooker characterized by: