JPH0543720Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an improvement of a blowing device for a kettle that generates a blowing sound by the action of steam jetted out from a spout during boiling.

[Conventional technology]

Conventionally, this type of blowing device was developed in 1983.
As disclosed in Publication No. 44900, there is a partition in which a lid plate that opens and closes the kettle spout and has a steam hole in the center is fitted with a cap body, and a reed plate is attached to the hollow inside of the cap body. A plate is disposed, and an intermediate cylindrical body whose upper surface is closed is disposed between the partition plate and the lid plate, and the peripheral wall of the intermediate cylindrical body and the lower surface of the partition plate on which the lead plate is attached communicate with each other. It is known that the cap body is provided with steam flow holes and a steam ejection hole in the upper part of the cap body.

In this conventional device, at the time of boiling, the steam in the kettle flows into the intermediate cylinder through the steam holes in the closed lid plate and accumulates pressure, and the high-pressure steam passes through the steam distribution holes in the intermediate cylinder and the partition plate. This causes the reed plate to vibrate, and the harmonica sound produced by this vibration is emitted to the outside from the steam outlet in the cap body along with the high-pressure steam.

[The problem that the idea aims to solve]

However, according to the conventional technology with the above configuration,
The steam flow rising through the steam flow holes in the partition plate is
After being sprayed in a direction substantially perpendicular to the back surface of the lead plate, the flow direction is regulated by the lead plate and flows out around the lead plate in no direction.

Therefore, the branch component of the steam flow flowing in the direction in which the reed plate is vibrated, that is, in the length direction of the reed plate, remains at a small amount of air relative to the entire steam flow, so it is not possible to cause the reed plate to vibrate greatly. Therefore, it is not possible to obtain a loud blowing sound. For this reason, there is a problem that during boiling, no blowing noise is generated unless the vapor pressure becomes considerably high, and the blowing noise that is generated is small and difficult to hear.

The present invention was developed in order to solve these conventional problems, and uses the steam flow generated during boiling to effectively vibrate the reed plate in a kettle blowing device to notify boiling. The purpose is to ensure that the

[Means to solve the problem]

In order to achieve such an object, the present invention provides an opening/closing lid plate in which a blowing device main body 1 for opening and closing a spout 3 of a kettle 2 has a steam hole 10, as shown in the drawings corresponding to the embodiments. 4 and a cap body 5 on which the lid plate 4 is fitted, and a partition plate 16 on which lead plates 20, 20, 20 are attached in the front and rear direction is stretched in the hollow interior of the cap body 5. A sloped intermediate plate 17 that slopes upward toward the rear is disposed between the partition plate 16 and the lid plate 4, and a steam flow hole 18 is provided at the rear end of the sloped intermediate plate 17 and the partition plate 16 to communicate with each other. , 22a, respectively, and steam ejection holes 24, 24, 24 are formed in the upper front end of the cap body 5.

[Effect]

The space between the lid plate 4 and the inclined intermediate plate 17 has a shape that expands toward the rear, so that during boiling, some of the steam that flows into the space from the steam holes 10 of the lid plate 4 flows backward. This flow passes through the steam passage hole 22a of the intermediate plate 17 and hits the inner rear end of the cap body 5, and after changing direction forward, flows from the steam passage hole 18 of the partition plate 16 to the lead plate 20, 20, 20 through the upper part of the steam outlet 2
4, 24, 24 toward the outside, and the reed plates 20, 20, 20 vibrate under the suction effect generated by this flow from above.

On the other hand, since the space between the partition plate 16 and the inclined intermediate plate 17 has a shape that becomes narrower toward the rear,
The other part of the steam that has flowed into this space is transferred to the steam distribution holes 2 of the intermediate plate 17 and the partition plate 16 within the space.
2a, 18 and becomes a flow toward the rear, and this flow flows through the lead plates 20, 20, 2.
0, and the lead plates 20, 2
0,20 are vibrated.

In this way, the reed plates 20, 20, 20 receive steam flows on both the upper and lower sides in the longitudinal direction, that is, in the direction in which each reed plate 20 vibrates, thereby generating a harmonica sound with a loud and clear tone. The sound is generated along with the steam flow through the steam nozzles 24, 24,
24 to the outside.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In FIG. 1, reference numeral 1 denotes the main body of the blowing device, which includes an opening/closing lid plate 4 made of a flat metal plate with a diameter slightly larger than the spout 3 of the kettle 2, and a lid plate 4 made of synthetic resin that is fitted onto the lid plate 4. The cap body 5 is attached to the spout 3 of the kettle 2 via an attachment arm piece 6 protruding from the rear end of the cap body 5.

That is, a fixed hinge member 7a is fixed to the inclined upper surface of the spout 3 of the kettle 2, and a rotary hinge member 7b is rotatably supported at the tip of the fixed hinge member 7a via a support shaft 7c. By bonding and fixing the rear end surface of the mounting arm piece 6 to the front end surface of the rotating hinge member 7b using an adhesive or the like,
The blowing device main body 1 is pivotally supported around a hinge support shaft 7c so as to be rotatable in opening and closing. Note that 8 is a spring that biases the blowing device main body 1 in the opening direction;
and the rotating hinge member 7b. 9 is the lid of kettle 2.

As shown in FIGS. 2 and 3, the cover plate 4 has elongated steam holes 10, 10, 10 drilled at the front end thereof, and a screw insertion hole 11 protruding from the rear end end. Furthermore, a U-shaped notch 12 is formed at the rear end. The cap body 5 also has a mounting boss 13 at a rear portion thereof corresponding to the screw insertion hole 11.
is vertically provided, and a locking protrusion 14 corresponding to the notch 12 is provided protruding from the rear end, and the cap body 5 locks the locking protrusion 14 into the notch 12 of the cover plate 4. It is integrally connected to the cover plate 4 by inserting a tapping screw 15 through the screw insertion hole 11 of the cover plate 4 and screwing it into the mounting boss 13.

A partition plate 16 is stretched in the hollow interior of the cap body 5, and an inclined intermediate plate 17 is provided between the partition plate 16 and the lid plate 4, and is inclined upward toward the rear.

The partition plate 16 is formed into a disc shape with a U-shaped cutout 18 as a first steam flow hole through which the attachment boss 13 of the cap body 5 passes through at the rear end, and several slit-like blowholes in the center. Holes 19, 19, 19 are formed in parallel in the front-rear direction, and the cap body 5
It is integrally fitted at an angle to the upper and lower intermediate portions of the cover plate 4 so as to extend rearwardly. In addition, on the lower surface of the first steam distribution holes 19, 19, 19, there are strip-shaped lead plates 20, 20, 20, which overlap the respective distribution holes 19, with their rear ends fixed to the lower surface of the partition plate 16. It is mounted in a cantilevered manner.

As shown in FIG. 4, the inclined intermediate plate 17 is formed into a disk shape with a partially spherical bulge 17a at the center, and several legs 21 of different lengths extend from the periphery of the disk. , 21, 21 are installed vertically, and the lower ends of the legs 21, 21, 21 are integrally fixed to the upper surface of the cover plate 4 by spot welding or the like. In this state, between the intermediate plate 17 and the lid plate 4, there are legs 21, 21,
A space 22 that slopes upward toward the rear is formed corresponding to the height of the space 21, and the opening at the rear end of this space 22 functions as a second steam flow hole 22a. Note that 23 is a notch formed in the central bulge 17a of the inclined intermediate plate 17, through which the attachment boss 13 of the cap body 5 is passed.

Further, a plurality of steam ejection holes 24, 24, 24 are bored in the upper front end of the cap body 5 along the direction in which the lead plates 20, 20, 20 are disposed.

The blowing device of this embodiment equipped with the above-mentioned structural members has an inclined intermediate plate 1 at a predetermined position on the upper surface of the cover plate 4.
At the same time, the partition plate 16 with the lead plates 20, 20, 20 attached thereto is stretched at a predetermined height position inside the hollow part of the cap body 5, and then the cap body 5 is fixed on the lid plate 4 as described above. can be fitted and assembled.

In this assembled state, a first steam circulation space A that gradually expands toward the rear is formed between the steam hole 10 of the cover plate 4 and the inclined intermediate plate 17, and also between the inclined intermediate plate 17 and the partition plate 16. A second steam circulation space B is formed which gradually expands toward the front.
The bulging portion 17a of the intermediate plate 17 is located close to and opposite to the lead plates 20, 20, 20 attached to the partition plate 16, and the second steam circulation space B is narrowest at this portion. Further, a third steam circulation space C is formed between the partition plate 16 and the upper wall of the cap body 5, and communicates with the outside through the steam jet holes 24.

When the water in the kettle 2 is boiled with the blowing device having the above structure attached to the spout 3 of the kettle 2 with the spout 3 closed, the steam generated at the time of boiling is released from the steam hole 10 of the lid plate 4. 1 enters the steam circulation space A, and forms a rearward flow according to the inclination of the vapor circulation space A, as shown by arrow a in FIG. After passing through the second steam distribution hole 22a, this steam flow hits the rear wall surface of the cap body 5 and rises, passing through the first steam distribution hole 18 and turning the flow in the opposite direction, as indicated by arrow b. As the steam passes forward through the third steam circulation space C, the reed plates 20 and 2 are
0,20 while vibrating the steam ejection holes 24,2.
4, 24 to the outside.

On the other hand, a part of the steam flows from the space 22 between the cover plate 4 and the inclined intermediate plate 17 into the second steam circulation space B through the side opening of the inclined intermediate plate 17. Steam flow holes 22a, 18
The lead plate 2 is
An ejecting action occurs in the narrow space below 0, 20, 20, and the air containing steam in the second steam distribution space B flows backward as shown by arrow c and blows out from the narrow space. The reed plates 20, 20, 20 vibrate due to the flow and produce a blowing sound.

The steam flow due to the ejecting action in the second steam distribution space B and the steam flow to the steam jet hole 24 in the third steam distribution space C are both caused by the lead plate 20,
The flow is along the length direction of 20, 20, that is, the direction in which each reed plate 20 is vibrated, and the synergistic effect of these two steam flows acts extremely effectively on the vibration of the reed plates 20, 20, 20. Lead plate 2
A loud and excellent harmonica sound is generated from 0, 20, 20, and along with the steam flow, the steam nozzle 24,
24, 24 to the outside.

In the above embodiment, a steam escape hole 25 is provided at the front end of the cover plate 4 to prevent excessive steam pressure from accumulating in the blower body 1, thereby reducing the risk of high-pressure steam blowing out during use. You may try to avoid this.

[Effect of idea]

As explained above, when using the kettle blowing device of the present invention, the partition plate 16 on which the lead plates 20, 20, 20 are attached in the front and rear direction is installed in the hollow interior of the cap body 5, which is a component of the blowing device main body 1. The space between the lid plate 4 and the inclined intermediate plate 17 is extended to the rear, and the inclined intermediate plate 17 is provided between the partition plate 16 and the lid plate 4, and the inclined intermediate plate 17 is tilted upward toward the rear. Since the shape expands, at the time of boiling, the steam flowing into the space from the steam hole 10 of the lid plate 4 forms a constant flow toward the rear,
This flow passes through the steam distribution hole 22a of the intermediate plate 17, hits the inner rear end of the cap body 5, changes its direction forward, and then passes through the steam distribution hole 18 of the partition plate 16, the upper part of the lead plates 20, 20, 20, and then the steam Spout hole 2
4, 24, 24 to the outside, and the suction effect generated by this flow acts from above the reed plates 20, 20, 20 and vibrates the reed plates 20, 20, 20, while the partition plate 16 and the inclined Since the space between the intermediate plates 17 becomes narrower toward the rear, the other part of the steam that has flowed into this space passes through the steam distribution holes 22 of the intermediate plate 17 and the partition plate 16 within the space.
It is attracted by the flow passing through a and 18 and becomes a flow toward the rear, and this flow flows through the lead plates 20, 20, 20.
is sprayed onto the lower part of the lead plate 20, 20,
Vibrate 20.

Therefore, almost all of the steam flowing in from the steam holes 10 of the lid plate 4 flows in the direction of vibrating the reed plates 20, 20, 20, and vibrates the reed plates 20, 20, 20.
20 to vibrate, it is possible to increase the blowing sound for notification at the time of boiling, and the blowing sound can be generated without delay immediately after boiling, so it is possible to provide quick response. It has shown excellent practical effects.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention, with Figure 1 being a vertical sectional view of the main part showing the state in which it is attached to the spout of a kettle, Figure 2 being a vertical sectional side view, and Figure 3 being FIG. 4 is an exploded perspective view of the lid plate, partition plate, and cap body viewed from below, and FIG. 4 is a perspective view of the inclined intermediate plate fixed to the lid plate. 1... Blowing device main body, 2... Kettle, 3... Spout, 4... Opening/closing lid plate, 5... Cap body, 10
... Steam hole, 16 ... Partition plate, 17 ... Inclined intermediate plate, 18 ... Steam communication hole in partition plate, 20 ... Lead plate, 22a ... Steam communication hole in inclined intermediate plate, 24
...Steam vent.

Claims (1)

[Scope of utility model registration request] Blow device body 1 that opens and closes the spout 3 of the kettle 2
It consists of an opening/closing cover plate 4 having a steam hole 10 bored therein and a cap body 5 in which the cover plate 4 is fitted.In the hollow interior of this cap body 5, a reed plate 2 is disposed in the front and back direction.
0, 20, 20 is attached, and an inclined intermediate plate 17 is provided between the partition plate 16 and the lid plate 4, and is inclined upward toward the rear. 17 and the rear end portion of the partition plate 16 communicate with each other.
are formed respectively, and the cap body 5
A blowing device for a kettle, which has steam blowing holes 24, 24, 24 in the upper front end of the kettle.