JPH06285295A - Futon dryer - Google Patents

Abstract

PURPOSE:To provide a dryer wherein incomplete drying or overdrying is avoided by continuously judging the state of drying of a futon by sensing surface temperatures of the futon as radiant heat. CONSTITUTION:A radiation temperature sensor 9 comprising a radiation sensor 10 and a heat collecting board 11 and an electronic circuit 13 are installed on the exterior of the body 1 of a futon dryer, whereby the sensor 10 senses the surface temperature of a futon and the circuit 13 can stop the operation of the dryer. And by pivoting the sensor 9 on a drive device 14, the surface temperature of the futon is sensed over a wide range of area so that the dried state of the futon can be precisely judged, whereby the dryer can be operated and controlled in a proper period of time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a futon dryer used at home.

[0002]

2. Description of the Related Art In recent years, a futon dryer capable of easily drying a futon has become widespread due to an increase in the number of houses in a metropolitan area and an increase in housewives.

Conventionally, this type of futon dryer has generally been constructed as shown in FIGS. 6 and 7. As shown in the figure, the main body 101 has a built-in hot air generator including a motor 102, a fan 103, and a heater 104, and an intake port 105 and a warm air outlet 106 are provided on the outer surface of the main body 101. The warm air outlet 106 projects from the main body 101,
An air-permeable drying bag 107 is connected. The time switch 108 sets the operating time of the warm air generator.

In the above structure, the hot air generated by the hot air generator is sent from the hot air outlet 106 into the drying bag 107 inserted between the futons and the time switch 108.
The futon was dried by driving for the time set in.

[0005]

In such a conventional futon dryer, the user empirically estimates the drying time and sets the time switch 108, but the material and thickness of the futon to be dried are set. Since the drying time varies depending on the amount of cotton, etc., there is a problem that if the drying time is set incorrectly, the drying condition will be insufficient or over-dried, making it difficult to obtain a proper drying condition. .

Also, the drying time must be changed depending on the size of the futon, but this also has a problem that the drying time cannot be properly operated because the drying time is empirically set. Was there.

SUMMARY OF THE INVENTION The first object of the present invention is to solve the above-mentioned problems, and it is a first object of the present invention to obtain an appropriate dry state by setting an appropriate drying time based on information on the surface temperature at a typical position of a futon. And

A second object is to detect the surface temperature of the entire futon and perform a proper drying operation even in the case of a large futon.

[0009]

A first means for achieving the first object of the present invention is to provide a hot air generator including a motor, a fan and a heater built in a main body, and the hot air generator. A drying bag that supplies warm air from the device to the futon, a radiation sensor that detects the radiant heat of the futon, and an electronic circuit section that receives the temperature data detected by this radiation sensor and controls the operation of the hot air generator. The radiation sensor is provided on the surface of the main body.

A second means for achieving the second object is a structure having a drive device for rotating the radiation sensor.

[0011]

According to the present invention, by the constitution of the above-mentioned first means, the warm air blown from the warm air generator into the drying bag warms the upper and lower futons of the drying bag, and the surface temperature of the upper futon rises. However, the temperature change is detected by the temperature detection device as radiant heat, and the electronic circuit unit controls the operation of the warm air generation device based on this temperature information, and the futon can be dried in an appropriate time.

Further, according to the structure of the second means, the radiation sensor provided in the main body rotates a predetermined range to detect the temperature rise of the surface of the upper futon over a wide range, and more accurately judge the dry state of the futon. Thus, the warm air generator can be operated in an appropriate time.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. As shown in the figure, the main body 1 includes a motor 2, a fan 3, and a heater 4 for generating hot air.
And an air inlet 6 and a hot air outlet 7 are provided on the outer surface of the main body 1. The hot air outlet 7 projects from the main body 1 and is connected to a breathable drying bag 8. Also, the main body 1
A radiant temperature detecting device 9 is attached to the futon, and the radiant temperature detecting device 9 is composed of a radiant sensor 10, a heat collecting plate 11 and a cover 12. One surface of the heat collecting plate 11 has a curved shape, and heat from an object located at a certain distance in front can be collected in the radiation sensor 10. The cover 12 is made of transparent synthetic resin or glass that transmits radiant heat. In addition, the electronic circuit section 1 provided in the main body 1
3 is capable of inputting the temperature data detected by the radiation sensor 10 and controlling the operation of the hot air generator 5.

In the above structure, the warm air generated by the warm air generator 5 is sent from the warm air outlet 7 into the drying bag 8 inserted between the futons, and the upper and lower futons are warmed to evaporate the moisture. Let the futon dry. The heat of vaporization of water decreases with the drying of the futon, and the surface temperature of the futon rises, but the surface temperature of the futon is collected by the heat collecting plate 11 of the radiation temperature detecting device 9 attached to the outer shell of the main body 1, and the radiation sensor Detected at 10. Electronic circuit section 13
Can input a detection signal and stop the warm air generator 5 when the detected temperature becomes equal to or higher than a predetermined temperature.

As described above, according to the futon dryer of the embodiment of the present invention, the radiation sensor 10 detects the temperature rise of the futon surface, so that the futon dryer can be operated for a proper time without the user's judgment and automatically. The hot air generator 5 can be stopped at any time, and a proper dry state can be realized at any time.

Next, a second embodiment of the present invention will be described with reference to FIGS. The same components as those in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted.

As shown in the figure, the main body 1 has a driving device 14 for moving the radiation temperature detecting device 9. This drive 1
4, a crank mechanism is used, and as shown in FIG. 5, a small gear 17 is fixed to the tip of a shaft 16 of a sensor motor 15 by meshing with a large gear 18. A rod 19 having one end rotatably supported is connected to the large gear 18 at a position slightly away from the center of rotation thereof. The other end of the rod 19 is rotatably connected to a shaft 20 provided integrally with the heat collecting plate 11, and a rotation center shaft 21 is provided near the center of the shaft 20.

In the above structure, first, when the motor 20 is driven and the shaft 16 and the small gear 17 rotate in the direction of arrow a in the figure, the large gear 18 rotates in the direction of arrow b and the rod 19 becomes horizontal movement of arrow c. . Shaft 2 connected to rod 19
0 makes a swing motion of arrow D or E around the rotation center axis 21, and the heat collecting plate 11 also makes a swing motion of E. Therefore, the radiation temperature detection device 9 can detect the temperature rise of each part of the upper futon surface over a wide range by performing the swing motion during the drying operation of the futon, and the electronic circuit part can be detected based on the temperature detected by the radiation sensor 10. 13 stops the hot air generator 5.

In the second embodiment, the crank mechanism is used as the means for oscillating the radiation sensor, but the mechanism is not limited to this.

As described above, according to the futon dryer of the second embodiment of the present invention, it is possible to detect a temperature rise in a wide range on the surface of the futon by swinging the radiation temperature detection device 9, and thus the double size Even with such a large futon, an appropriate dry state can be realized.

[0021]

As is apparent from the above embodiments, according to the present invention, by detecting the surface temperature of the futon as radiant heat, the dry state of the futon surface can be correctly detected during the drying operation. Drying operation can be realized, and good drying is always possible.

Further, even if a large-sized futon such as a double size is rotated, the radiation sensor can be rotated over a wide range, so that the temperature rise at the edges of the futon can be detected. A futon dryer can be provided.

[Brief description of drawings]

FIG. 1 is a sectional view of a futon dryer according to a first embodiment and a second embodiment of the present invention.

FIG. 2 is a perspective view of the same appearance.

FIG. 3 is a perspective view of a main part of the radiation sensor.

FIG. 4 is a sectional view of a main part of a radiation sensor section of the second embodiment.

FIG. 5 is a plan view of the main part

FIG. 6 is a sectional view of a conventional futon dryer.

FIG. 7 is a perspective view of the same.

[Explanation of symbols]

 1 Main Body 2 Motor 3 Fan 4 Heater 5 Hot Air Generator 8 Drying Bag 10 Radiation Sensor 13 Electronic Circuit 14 Drive Device

Claims (2)

[Claims] 1. A warm air generator comprising a motor, a fan and a heater built into the main body, a drying bag for supplying warm air from the warm air generator to the futon, and radiation for detecting radiant heat from the futon. A futon dryer having a sensor and an electronic circuit section that receives temperature data detected by the radiation sensor and controls the operation of the warm air generator, and the radiation sensor is provided on the surface of the main body. 2. The futon dryer according to claim 1, further comprising a drive device for rotating the radiation sensor.