JPH05256447A - Safety device for combustion machine - Google Patents

Abstract

PURPOSE:To keep safety of a combustion machine having a child lock switch and improve its using characteristics. CONSTITUTION:An operation switch 1 for turning on or off an operation of a combustion machine and a child lock switch 6 for preventing a tricky operation of a child are arranged at an operating part A of the combustion machine. Since there is provided a child lock switch judging part 10 for setting an operation mode to a child lock mode when the child lock switch 6 is continuously operated for more than a specified period of time, its safety and using characteristics are further improved as compared with that of the prior art having the child lock switch installed at a rear part of the combustion machine for preventing the mischievous operation of a child of the switch.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for a combustor which burns fuel and uses the heat of combustion for heating.

[0002]

2. Description of the Related Art In recent years, combustors such as household heaters that utilize combustion heat have been improved in their products due to increased awareness of usability and safety.

An example of a combustor used in a conventional hot air heater will be described below with reference to the drawings.

In FIG. 3, reference numeral 11 denotes a main body case of an oil warm air heater, and an operation section 12 for setting operating conditions on the upper case thereof.
And, there is a hot air outlet 13 in the lower part of the middle stage. FIG. 4 is a view of the oil warm air heater seen from the rear side, in which 14 is a switch for a child lock and 15 is a suction port for warm air.

In the above-mentioned structure, each switch of the operating section for setting the operating condition of the oil warm air heater is turned off when the knob of the child lock switch 14 is switched to the lock position as shown in FIG. All operating modes other than "are not accepted, and safety is ensured.

[0006]

However, the above-mentioned conventional structure has the following problems. That is, since the child lock switch 4 is mounted on the rear surface of the main body, it cannot be operated unless the rear surface of the main body is looked into, and the usability is poor, and a child easily switches it without the knowledge of the user (adult). There was also.

The present invention solves the above-mentioned conventional problems, and is intended to improve usability and ensure safety.

[0008]

In order to achieve the above object, the present invention provides a child lock switch in the operating portion of a combustor, and when the child lock switch is operated for a certain time or longer, the child lock mode is set. Configured.

[0009]

With the above-described structure, the present invention enables operation at the operation portion that is the easiest to operate without looking into the back surface of the main body and requires special operation, so that the child enters the child lock mode. The probability is extremely low, the usability is improved, and the safety can be secured.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, A is an operating portion of the combustor, and 1 is a lock-type operation switch, which is locked by "on" by one operation and switched to "off" by operating again. Reference numeral 2 is a display unit for displaying time or temperature, and the display of time and temperature is switched by operating the non-locking type changeover switch 3. 4,5
Is a non-locking type switch for setting the contents of the time and temperature display section 2. Numeral 6 is an extension switch for continuing the operation, which is for the purpose of extending the operation stop after a certain period of time, which is built in for ensuring safety, as it is, and is composed of a non-locking switch. Also serves as a child lock switch. Reference numeral 7 is a low-speed operation switch, and 8 is a mild operation switch for operating in a predetermined mode. 9
Is a control unit that controls the driving based on the input signals from the respective switches 1 to 8, and 10 is a child lock determination unit,
When the extension switch 6 which also functions as a child lock switch among the above switches 1 to 8 is continuously operated for a certain period of time or more, the child lock determination unit 10 determines this and sends a child lock signal to the control unit 9 to send the child lock signal. In addition to locking, the extension switch 6 can be released by continuously operating the extension switch 6 for a certain time or longer. Reference numeral 11 is a display lamp for displaying a child lock state.

In the above structure, each switch 1 to 8 is usually used.
Is operated, the control unit 9 controls the combustor based on the signal. For example, if the operation switch 1 is operated, the operation is started, if the display changeover switch 3 is operated, the display on the display unit 2 is set to the time or the temperature, and if the changeover operation switch 7 is operated, the operation is performed in the changeover operation mode. To do.

On the other hand, when the extension switch 6 is continuously operated for a certain period of time or longer, the child lock judging section 10 judges this and sends a child lock signal to the control section 9 to make the child lock. That is, the microcomputer constituting part of the control unit 9 and the child lock determination unit 10 determines whether or not the extension switch 6 has been continuously operated for a fixed time or longer as shown in the flowchart of FIG. If it is an operation, the child lock mode is set and the child lock display lamp 11 is turned on. When the extension switch 6 is continuously operated for a certain period of time again, the child lock mode is released and the display lamp 11 is also turned off.

At the time of the child lock, only the operation switches from "ON" to "OFF" are accepted, but even if all other switches are operated, they are not accepted, so that the child cannot easily operate.

In the above embodiment, the extension switch 6 is used as a child lock switch, but this is shown as an example, and any method can be used as long as it achieves the object and effect of the present invention. It may be configured.

[0016]

As described above, according to the present invention, since the child lock switch is provided in the operation portion, the operation can be easily performed without looking into the rear surface of the main body and the special operation must be performed. For example, since child lock cannot be done, it is less likely that a child will easily become child locked, improving usability and ensuring safety at once. Further, it is possible to easily discriminate whether or not the child lock is provided in the child lock-equipped lamp, and the usability can be further improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a safety device for a combustor according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the same operation.

FIG. 3 is an external perspective view showing a conventional combustor.

FIG. 4 is an external perspective view showing a conventional combustor.

[Explanation of symbols]

 A operation unit 1 operation switch 6 child lock switch (extension switch) 9 control unit 10 child lock determination unit

Claims (2)

[Claims] 1. A child lock comprising an operation switch for turning on and off the operation of the combustor and a child lock switch incorporated in an operating portion of the combustor, and further operating the child lock switch for a predetermined time or longer. A safety device for a combustor having a child lock determination unit that sets the mode. 2. The safety device for a combustor according to claim 1, wherein the operating portion is provided with a display means such as a lamp for displaying a child lock state.