JPH0356734Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a cassette stove in which a small-capacity gas cylinder is removably loaded and used as a gas supply source.

(Prior art) Conventional cartridge stoves have simplified the handling and use of gas cylinders by connecting and disconnecting the gas cylinder, and automatically disconnecting the gas cylinder when abnormal pressure occurs. Various mechanical improvements have also been made to ensure safe use. However, when using gas cylinders, it is important to avoid using up the gas unknowingly during cooking, and to ensure that the next gas cylinder is prepared in a timely manner. It is desirable to know the amount. Recently, in order to meet this demand, it has been proposed to display the remaining amount of gas by the change in weight of the gas cylinder as the gas is consumed.

(Problem that the invention aims to solve) The weight change of a gas cylinder due to gas consumption is subtle, and to indicate that the gas has been reduced to a predetermined state due to this change, the structure would be complicated, and considering the complexity, The error is large, and the display often differs greatly from the actual amount of gas remaining, causing gas cylinders with a considerable amount of remaining gas to be replaced, or gas to run out during cooking without realizing it. There is.

(Means for Solving the Problems) The present invention provides a case stove in which a gas cylinder is set in the stove case, and gas is supplied from the gas cylinder to a gas burner via a gas pressure regulator. A display means for displaying the remaining amount of gas in the gas cylinder from this responsive state is linked to a gas pressure responsive member that responds to the supply gas pressure of the regulator, and the display member displays the remaining amount of gas in the stove case. It is characterized in that it is displayed externally through a display window.

(Function) In the gas pressure regulator, the gas pressure responsive member responds to the gas pressure supplied to the gas burner from the gas cylinder set in the stove case, and adjusts the gas pressure of the gas supplied to the gas cylinder. The display means is linked to the operation according to the supply gas pressure,
The remaining amount of gas in the gas cylinder according to the supplied gas pressure can be displayed externally through a display window of the stove case.

(Example) Example 1 (Figures 1 to 3) As shown in Figure 2, a connection port 2 for connecting a gas cylinder 1 and a gas supply port 4 for a gas burner 3
A gas supply path 5 with a gas supply path 5 is formed integrally with a gas pressure regulator 6 provided in the middle thereof. This gas pressure regulator 6 is further integrally formed with a device 7 that opens and closes the gas supply path 5, and an operating lever of a cylinder setting mechanism 8 that presses and connects the gas cylinder 1 to the connection port 2 and releases it. 9 is pivoted.

These are the stove case 10 seen in Figure 3.
The operating part 9a of the operating lever 9 and the operating knob 12 of the appliance cooker 7 are located in the front of the stove case 10.
The cylinder storage chamber 11 is provided with a bottom-hinged opening/closing lid 13.

The gas pressure regulator 6, as seen in FIG.
It has a built-in diaphragm 14 that responds to the gas supply pressure, that is, the primary side gas pressure.
It is connected to a throttle valve 15 provided in the gas flow path to the next side. By this, diaphragm 1
4 is displaced according to the supply gas pressure, and operates the throttle valve 15 to change the opening degree of the gas flow path from the primary side to the secondary side, so that the pressure of the gas exiting from the secondary side becomes the set pressure. Adjust to. Diaphragm 1 of gas pressure regulator 6
A detection shaft 1 is disposed in a chamber 16 above 4 and is configured to follow the movement of the diaphragm 14 by the urging of a spring 17.
8 is provided to slidably penetrate the top plate 19 of the gas pressure regulator 6. A hook-shaped actuating piece 20 is attached to the upwardly projecting end of the gas pressure regulator 6 of the detection shaft 18.
is fixed. On the upper surface of the top plate 19 of the gas pressure regulator 6, an arc-shaped display portion 21a is pivotally supported by a horizontal shaft 22, and a tail piece 21b is moved to the tip of the actuating piece 20 by the rotational moment due to its own weight generated around the shaft 22. It abuts from below and is stabilized at a rotating position corresponding to the height position of the actuating piece 20.

As a result, movement corresponding to the supply gas pressure of the diaphragm 14 is applied to the actuating piece 20 via the detection shaft 18 that follows it, and the display section 21 rotates in accordance with the movement of the actuating piece 20 to adjust the tilt angle. Change. In other words, the display section 21 is indirectly linked to the diaphragm 14, can change its posture according to the supply gas pressure, and displays the difference in the supply gas pressure depending on the posture.

A transparent cover 24 that covers the display mechanism section 23 is provided on the top plate 19 of the gas pressure regulator 6, and the transparent cover 24 and the transparent cover 24 are exposed to the through-hole window 25 provided in the top plate of the opening/closing lid 13 of the stove case 10. The above-mentioned display is performed outside the stove case 10 by taking out the display.

From outside the stove case 10, the part of the display section 21a closest to the cover 24 is clearly visible through the cover 24, so when the gas pressure corresponds to the normal use state, the part closest to the cover 24 is displayed in the normal use state. Range 21c, the part close to the cover 24 when the gas pressure is equivalent to a state in which only a little more gas can be used due to the remaining amount of gas is designated as the remaining amount warning display range 21d, and the colors and characters are displayed differently, so that both conditions can be seen from the outside. They are clearly distinguishable and clearly visible.

Of course, in the same way, it is also possible to display when an abnormal pressure occurs in which a large movement is applied to the diaphragm 14.

The smaller the visible field range of the display member 21 from the outside is made by the size of the transparent portion or the aperture, the easier it becomes to perform the above-mentioned distinguishing display with small movements of the display member 21. However, it will be difficult to stand out, so it is desirable to have an appropriate size.

Embodiment 2 (FIG. 4) As seen in the figure, the detection shaft 18 protrudes upward from a through hole 31 formed in the opaque cover 24.
Depending on the state of protrusion and retraction with respect to the cover 24 according to the gas pressure, it also serves as a display member 32 that externally displays the difference in the state. In this case, the upper end of the detection shaft 18 is in the normal use state display range 32.
a, the area below is the abnormal pressure generation state display range 32b, and by sinking the detection shaft 18, it is displayed that the remaining amount of gas is only a little more usable.

Embodiment 3 (FIG. 5) As seen in the figure, a display member 41 is slidably held on the back surface of a transparent cover 24, and a cam slope 41a at the tail end of the display member 41 abuts against the upper end of the detection shaft 18. It is biased by a spring 42 so that the display member 41 slides as the detection shaft 18 moves. By sliding the display member 41, a transparent window 44 formed by applying an opaque coating 43 to the back surface of the cover 24 is exposed.
Normal use display range 41b, abnormal pressure occurrence display range 4
1c and the remaining amount warning display range 41d, these three states are distinguished and displayed.

Note that the present invention is not limited to the configuration of the embodiment described above, and can be implemented in various ways. For example, a part of a diaphragm, which is a gas pressure responsive member, may be projected to be visible from the outside and directly displayed.

Embodiment 4 (FIG. 6) A case is shown in which a buzzer 51 is provided as a display means. Buzzer 51 is associated with visual display member 32 shown in FIG.

The buzzer 51 includes a main switch 52 that is turned on in conjunction with the opening operation of the instrument pot using the operating knob 12, a switch 53 that is turned on and off by movement of the detection shaft 18 in accordance with the gas pressure, and a battery 54.
and are all provided in a circuit connected in series. The switch 53 is fixed to the back surface of the cover 24 and is pushed and operated by an operating rod 55 connected to the detection shaft 18. The operating rod 55 is pivotally supported on the back surface of the center cover 24 by a pin 56, and one end is connected to the detection shaft 18 by a pin 57. The other end operating portion 55a of the operating rod 55 faces the switch 53, and the operating rod 55 moves in conjunction with the detection shaft 18 to rotate the pin 5.
6, the switch 53 is turned on or off depending on the position.

The detection shaft 18 provides a visual display corresponding to the gas pressure state using the display member 32 at its upper end, as in the case of the second embodiment. The circuit of the buzzer 51 is a switch 5 which is linked to the opening operation by the operation knob 12.
When 3 is on, it becomes operational.

When the detection shaft 18 is in a normal use state, the operating portion 55a of the operating rod 55 is in a state in which it does not push the switch 53. As a result, the switch 53 is in an off state, and the circuit of the buzzer 51 is opened and the buzzer 51 is not activated. When the display member 32 at the upper end of the detection shaft 18 indicates that the remaining amount of gas is low, the operating rod 5
5 is rotated counterclockwise around the pin 56, and when abnormal pressure is displayed, the operating rod 55 is rotated clockwise around the pin 56. The operating rod 55 turns on the switch 53 in any rotation.

This activates the buzzer 51 to emit a sound,
Inform the user that the use of the stove is inappropriate. This acoustic display is particularly effective when the users are in a situation where they cannot visually see how the stove is being used, such as when they are far away from the location where they are using the stove. If you want to know the cause of improper use, you can find out by looking at the visual display content by the display member 32.

Note that a display lamp 57 as shown by the imaginary line can also be used as a visual display means.

Embodiment (FIG. 7) A reed switch 61 detects the movement of the operating rod 55 when the remaining amount of gas is low, and a reed switch 62 detects the movement when the pressure is abnormal.

The on/off signals from each reed switch 61, 62 are given to the audio display controller 63, and the audio display controller 63 receives an audio signal depending on which of the reed switches 61, 62 it receives the signal from. is given to the speaker 64, and an inappropriate display is made audibly. In this case, users who are unable to visually observe the state of use can be informed of the improper use and its cause at the same time.

Of course, depending on the input from the reed switches 61 and 62, the display lamps 65 and 66 are turned on for visual display. In this case, it is convenient to illuminate display panels for different causes. These lamps 65, 66 can also be used in conjunction with audible display means.

(Effect of the invention) According to the invention, in the gas pressure regulator, the gas pressure responsive member responds to the gas pressure supplied to the gas burner from the gas cylinder set in the stove case, thereby adjusting the gas pressure of the gas supplied to the gas cylinder. A display means is linked to the operation of the response member according to the supply gas pressure, and displays the remaining amount of gas in the gas cylinder according to the supply gas pressure to the outside through a display window of the stove case. Therefore, by linking the normal operation of the gas pressure regulator with the display means, it is possible to skillfully utilize the normal operation of the gas pressure regulator to easily and accurately detect and display the remaining amount of gas in the gas cylinder without the need for any special components. Whether or not it is appropriate to use a cassette stove, specifically, the reason why the firepower does not increase is due to the gas cylinder, the time to prepare the gas cylinder,
Notification of the replacement time to the user can be achieved with a simple structure and can be provided at low cost.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the main parts showing the first embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a perspective view of a part of the stove case, and Figs. 4 and 5 are respective views. 2. A sectional view of a main part showing the third embodiment, and FIGS. 6 and 7 are circuit diagrams showing the fourth and fifth embodiments. 3...Gas burner, 5...Gas supply path, 6...
Gas pressure regulator, 14... diaphragm (gas pressure responsive member), 18... detection shaft, 20... operating piece, 2
1, 31, 41... display member, 10... stove case, 25, 31, 44... window, 1... gas cylinder.

Claims (1)

[Scope of Claim for Utility Model Registration] In a case stove in which a gas cylinder is set in a stove case and gas is supplied from the gas cylinder to a gas burner via a gas pressure regulator, the supply gas pressure of the gas pressure regulator A display means for displaying the remaining amount of gas in the gas cylinder from this responsive state is linked to the gas pressure responsive member that responds, and the display of the remaining amount of gas by this display member is displayed externally through a display window of the stove case. A Cassette Stove characterized by: