JPS5921758Y2 - Hot air utilization equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to hot air utilization equipment such as a futon dryer that utilizes warm air.

In general, hot air utilization equipment such as futon dryers have a duct that connects a hot air generator and a bag-shaped warm air emitting body made of a highly flexible material. If an external force is applied to the duct during use and the outlet of the duct is blocked, the hot air discharge from the duct to the hot air emitting body will be stopped. The structure was such that safety devices such as the following were activated to prevent abnormal overheating of the heating element.

However, in this configuration, when a temperature fuse is used, it is necessary to replace the temperature fuse every time the temperature fuse is activated, which is inconvenient for the user.

Additionally, devices that use thermostats have a complicated circuit structure, which makes assembly work difficult, and it is not easy for amateurs to replace or repair thermostats, which results in high repair costs. .

In view of the above points, the present invention has been designed to have a simple structure and to ensure the safety of hot air utilization equipment.Hereinafter, the present invention will be explained based on the attached drawings showing the embodiments thereof.

In the figure, reference numeral 1 denotes a hot air generator having an intake port 2 at one end and an exhaust port 3 at the other end, with a ventilation passage 4 inside and a motor 5 on the intake port 2 side. A rotating fan 6 and a heating element 7 are provided on the exhaust port 3 side.

A duct 8 has one end connected to the exhaust port 3 of the hot air generator 1, and the other end of the duct 8 is connected to a bag-shaped hot air emitting body 9 made of a flexible material such as cloth. ing.

When warm air is sent from the hot air generating device 1 through the duct 8 to the hot air emitting body 9, it is swollen by the pressure and can radiate heat from the entire body.

Reference numerals 10 and 10' denote futons disposed above and below the hot air emitting body 9, and this futon can be dried by heat dissipation from the hot air emitting body 9.

In addition, when the hot air temperature is low, it can also be used as a heating device for sleeping between the upper futon 10 and the hot air emitting body 9.

A plurality of small holes 11 are provided close to the hot air generator 1 side of the duct 8, and these small holes 11 are covered with a cylindrical elastic member 12 made of rubber or the like.

Normally, when the motor 5 is energized, the fan 6 rotates and sucks outside air through the intake port 2. This sucked air is heated by the heating element 7 and becomes warm air, which is then passed through the duct 8. It is sent into the emitter 9.

In this case, since the small hole 11 is covered by the elastic member 12, hot air will not leak out from the small hole 11.

In this state, if, for example, an external force is applied to the hot air emitting body 9 and the outlet of the duct 8 is blocked, the hot air cannot be sent into the hot air emitting body 9, so the pressure inside the duct 8 will decrease. If the temperature exceeds the specified value, the heating element 7 will become abnormally overheated. The warm air is discharged to the outside through the gap between the expanded elastic member 12 and the outer peripheral surface of the duct 8.

This keeps the pressure inside the duct 8 at the specified value, so
The heating element 7 will no longer be overheated abnormally.

As described above, according to the present invention, a small hole is provided in the duct that connects the exhaust port of the hot air generator and the bag-shaped hot air emitting body made of a highly flexible material, and the small hole is filled with rubber. Because the duct is covered with an elastic member, even if the outlet of the duct is accidentally blocked during use, the hot air inside the duct will still flow outside through the gap between the elastic member and the outer circumferential surface of the duct. It can be discharged quickly, and as a result, abnormal overheating of the heating element due to the pressure inside the duct rising above a specified value can be prevented.

In addition, its structure is extremely simple compared to safety devices such as temperature fuses and thermostats, and it has various practical effects such as being low in cost and easy to maintain.

It goes without saying that the duct in the above embodiment includes a gas supply such as a hose.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a hot air utilization device showing an embodiment of the present invention, and FIG. 2 is a perspective view of an elastic member in the same device. 1...Hot air generator, 2...Intake port,
3... Exhaust port, 4... Ventilation path, 5...
...Motor, 6...Fan, 7...
- Heating element, 8...Duct, 9...Hot air emitting body, 11...Small hole, 12...Elastic member.

Claims (1)

[Scope of utility model registration request] It is equipped with a hot air generator, and a bag-shaped hot air emitting body connected to the exhaust port of the hot air generator via a gas supplying body such as a duct and made of a highly flexible material. A hot air utilization device characterized by having a small hole and covering the small hole with an elastic member such as rubber.