JPH0241479Y2 - - Google Patents

Description

[Detailed description of the invention] <Technical field> The present invention is applied to oil-burning type combustion heaters having a hot air blowing fan, when a foreign object is inserted into the hot air outlet or immediately before touching the louver of the hot air outlet. Regarding safety devices that stop combustion, etc.

<Prior art> Conventional combustion heaters were not equipped with a safety device for the hot air outlet, so if a child, etc. inserted a piece of paper into the hot air outlet,
There was a risk of fire and burns, and there was a risk of burns if your hands remained in contact with the louver of the hot air outlet for a certain period of time.

<Purpose> The present invention was created in view of the above points.
The purpose of the present invention is to provide a safety device for combustion heaters that can prevent fires and burns even when paper or the like is inserted into the hot air outlet by a child or the like.

<Example> Hereinafter, an example of the present invention will be described based on the drawings. First, the first embodiment will be explained with reference to a perspective view of the combustion heater safety device in FIG. 1, a plan view of the same in FIG. 2, and a perspective view of the combustion heater in FIG. 3. A foreign object contact detection plate 3 having a U-shape when viewed from the front is placed over a hot air outlet 2 provided with a plurality of fixed or fixed louvers 1 so as to block at least the central portion of the hot air outlet 2. The sensing plate 3 is supported with respect to the member 4 so as to be movable in the back and forth direction in a standby position 3A and a sensing position 3B, that is, rotatable around a vertical support shaft 5, and the upper pieces 6 of the plurality of sensing plates 3 are connected to each other as a connecting plate. 7 by a pin 8. A return spring 9 made of a tension spring that elastically holds the sensing plate 3 and the connecting plate 7 in the standby postures 3A, 7A is stretched between the left end of the connecting plate 7 and the protruding piece 4a of the peripheral material 4, and A sensing switch 10 is turned off in conjunction with the movement of the sensing plate 3 and connecting plate 7 to the sensing postures 3B and 7B at the time of contact, and switches the electric combustion control circuit, which is a combustion control device of the combustion heater, to the combustion stop side. The operating arm 10a is provided.

Next, to explain the operation, in FIG. 2, when an infant or the like inserts a piece of paper or the like between the louvers 1 of the hot air outlet 2, the tip of the paper comes into contact with the front edge of the sensing plate 3 in the standby position 3A. Therefore, a pressing force is applied to the sensing plate 3 in the direction of the arrow A, and this force causes the sensing plate 3 to rotate in the direction of the arrow B against the acting force of the return spring 9, which is set to a weak spring force, and to connect. Since the plate 7 moves in the direction of arrow C, the sensing plate 3 and the connecting plate 7 move to the sensing postures 3B and 7B, and the connecting plate 7 moves to the sensing position 3B, 7B.
Since the arm 10a of 0 is pushed, the sensing switch 10
turns off and automatically switches the electric combustion control circuit of the combustion heater to the combustion stop side. Note that the control circuit at this time operates in the same way as when a normal fire extinguishing operation is performed. Therefore, fires and burns caused by the inserted paper or the like are prevented.

Note that when the paper or the like is removed, the sensing plate 3 and the connecting plate 7 return to the standby positions 3A, 7A, but combustion remains stopped, and normal ignition operation is required for use.

Next, a second embodiment of the present invention will be explained with reference to the perspective view of the safety device in FIG. 4 and FIG. The projecting rods 11 are removably fixed with screws 11a, and a pin 1 is attached to the front end of each projecting rod 11.
A safety guard 13 is formed by providing a plurality of protective rods 12 which are rotatably connected at 2a and protrude from side to side so as to substantially cover the front side of the hot air outlet 2 and the louver 1. As shown in FIG. 2, the pin 12a and the vertical support shaft 5 constitute four connecting points of parallel links. The other configurations are the same as those of the first embodiment.

In this second embodiment, since the front side of the louver 1 is protected by the protective rod 12 at a distance D, the protective rod 12 can be kept at a lower temperature than the louver 1, and therefore, infants etc. When the protective rod 12A in the standby position is pressed with a tentacle, the protective rod 12 retreats, the protruding rod 11 and the sensing plate 3 rotate integrally in the direction of arrow B, and these and the connecting plate 7 sense from the standby position. The robot moves to the position, the sensing switch 10 is turned off, and the combustion of the combustion heater is stopped. Therefore, not only does it prevent danger to children when inserting paper, but it also prevents children from getting burned if they touch the louver 1 for more than a certain period of time.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and it goes without saying that many modifications and changes can be made to the above-mentioned embodiments within the scope of the present invention. Time sensing plate 3
The alarm device may also be configured to turn off in conjunction with the movement of the connecting plate 7 to the sensing postures 3B and 7B and switch the alarm device to the operating side.

<Effects> As is clear from the above description, the present invention has a foreign object contact sensing plate placed over the hot air outlet so as to block at least the central part thereof, and the foreign object contact sensing plate is placed against the peripheral material of the hot air outlet. is movably supported between a standby position and a sensing position, and operates in conjunction with the movement of the sensing plate to the sensing position when a foreign object comes into contact with it, and switches the combustion control device of the combustion heater to the combustion stop side or activates the alarm system. This invention relates to a safety device for a combustion heater, characterized in that it is equipped with a sensing switch that switches the switch to the operating side.

Therefore, in the present invention, by using the sensing plate or by using a guard connected to the sensing plate, fires and burns can be prevented even when paper, etc. is inserted into the hot air outlet by a child or the like. It has excellent effects.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a combustion heater safety device showing one embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a perspective view of a combustion heater, and Fig. 4 is a second embodiment of the present invention. FIG. 2 is a perspective view of an example. 1: Louver, 2: Hot air outlet, 3: Foreign object contact detection plate, 3A, 7A: Standby posture, 3B, 7B:
Sensing posture, 4: Peripheral material, 4a: Protruding piece, 5: Vertical support shaft, 6: Upper piece, 7: Connecting plate, 8: Pin, 9: Return spring, 10: Sensing switch, 10a: Operating arm, 11: Thrust rod, 12: Protection rod, 13: Safety guard.

Claims (1)

[Scope of utility model registration request] A foreign object contact sensing plate is placed across the hot air outlet so as to block at least the central portion thereof, and the sensing plate is supported movably between a standby position and a sensing position relative to the peripheral material of the hot air outlet, It is characterized by being provided with a sensing switch that operates in conjunction with the movement of the sensing plate to the sensing position at the time of contact and switches the combustion control device of the combustion heater to the combustion stop side or switches the alarm device to the operating side. A safety device for combustion heaters.