JPH0724193A - Clothes drying machine - Google Patents

Abstract

PURPOSE:To enable easy visual checking of the degree of clothes drying by providing the door in a clothes feed port with a transparent window and sticking a dry and wet indicator sheet which is discolored by moisture to the inner side of this transparent window. CONSTITUTION:This clothes drying machine is constituted to dry clothes 11 by heating the air sent by revolution of a double winged fan 5 to a heater 10 and blowing the heated air (a) into a drying drum 1 and to discharge the high-temp. moist air (b). The transparent window 17 is formed at the door 16 of the clothes feed port of such drying machine and the dry and wet indicator sheet 18 which is discolored by the moisture is stuck to the inner side of the transparent window 17. The dry and wet indicator sheet 18 described above is formed by using a cobalt salt as a chief material, adding a binder thereto to prepare an aq. soln., immersing paper or fabric into this aq. soln. and drying the paper or the fabric. The dry and wet indicator sheet is otherwise formed by applying a light scattering agent which is decreased in scattering of light and is discolored when water drops stick thereto on this sheet. The degree of drying is judged by viewing the discoloration of such dry and wet indicator sheet 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a household clothes dryer.

[0002]

2. Description of the Related Art Conventional household clothes dryers are of a manual timer type, and the degree of drying is usually determined by the user's intuition. Also, in the automatic type that automatically detects the dryness and stops the operation, the detection accuracy of the dryness is poor and even if the clothes are dry, such as when the amount of clothes is small or when the clothes are almost dry. For a while, there were inconveniences such as continuing the dry operation.

[0003]

Therefore, it is desirable that the degree of drying can be confirmed by the user's eyes even in the case of the manual timer type and the automatic drying detection type.

[0004]

In order to solve this problem, there is provided a clothes dryer in which a transparent window is provided on a door of a clothes inlet and a dry / wet indicating sheet which changes color depending on humidity is attached to the inside of the transparent window.

Alternatively, in the clothes dryer, a transparent window is provided on the front face of the clothes dryer and a circulating wind tunnel adjacent thereto, and a dry / wet display sheet that changes color depending on humidity is attached to the inside of the transparent window. Further, the dry / wet indication sheet has cobalt salt as a main ingredient, a fixing agent is added to this to make an aqueous solution, and the absorbent paper is soaked in the aqueous solution and then dried, or when water drops are attached, light scattering is reduced to cause discoloration. The wet and dry display sheet coated with the light scattering agent is attached.

[0006]

According to the present invention, when the clothes are dried, the wet display sheet attached to the door of the clothes inlet or the transparent window on the front of the machine discolors and the degree of drying can be seen at a glance.

[0007]

FIG. 1 is a sectional view of a dryer according to an embodiment of the present invention. FIG. 2 is a sectional view of the clothes dryer of the second embodiment.

1 and 2, the clothes drying drum 1 is driven to rotate by a motor 2, a pulley 3 and a belt 4. A double-blade fan 5 that also functions as a heat exchanger that cools and dehumidifies the air b that has become hot and humid due to drying of clothes is rotationally driven by a motor 2, a fan pulley 6, a fan pulley 7, and a fan belt 8. The circulation wind tunnel 9 forms a path for sending the circulation air c on the exhaust side of the double-blade fan 5 and the circulation air d to the heater 10. The air a heated by the heater 10 dries the clothes 11 in the clothes drying drum 1 and becomes hot and humid air b, which is again sucked by the two-blade fan 5, and this is repeated to dry the clothes 11. The air on the cooling side of the double-blade fan 5 passes through the intake hole 12 and the double-blade fan 5 and is discharged from the exhaust hole 13. A controller or a timer 14 controls the operation of the clothes dryer. Reference numeral 15 is an outlet for dew condensation water that is discharged after being cooled and dehumidified.

In FIG. 1, a dry / wet display sheet 18, which changes color depending on humidity, is attached to the inside of a transparent window 17 provided in the door 16 of the clothes inlet. This dry and wet display sheet 1
When the clothes 11 are dried, the humidity in the clothes drying drum 1 is lowered, and the clothes 8 are coated with a cobalt salt agent or a light scattering agent that scatters light when water drops are attached to the clothes drying drum 1 so that the clothes are reversibly discolored. is there. In FIG. 2 of the second embodiment, a transparent window 17 is provided on the front face of the machine body and on the circulation wind tunnel 9 adjacent thereto, and a dry / wet display sheet 18 that changes color due to humidity is attached to the inside of the transparent window 17.

Next, the operation will be described. Since the humidity inside the clothes drying drum 1 is high when the clothes are not dried, the dry / wet indicator sheet 18 is pink when coated with the cobalt salt agent. In the case where the light-scattering agent is applied, water droplets adhere and do not scatter light, so that the original color of the wet and dry display sheet 18, for example, red. When the clothes are dried, the humidity in the clothes drying drum 1 is reduced, and the dry / wet display sheet 18 changes to blue when the cobalt salt agent is applied, and the dry / wet display sheet 1 when the light scattering agent is applied.
The water droplets of No. 8 evaporate and scatter light to change to white.

As described above, the degree of drying of clothes can be seen at a glance, and a clothes dryer which is convenient for the user can be provided.

The dry / wet display sheet 18 may be coated with a cobalt salt agent or a light-scattering agent in a character form such as "dry" for display.

[0013]

According to the above-described embodiment, in the case of a household clothes dryer having a manual timer, the degree of drying is usually decided by the user's intuition, and the drying is automatically detected. In the automatic type that stops the operation, when the amount of clothes is small, or when the clothes are almost dry and finish drying, the detection accuracy of dryness is poor, and even if it is dry, continue dry operation for a while. The conventional inconvenience is solved, and the degree of clothes drying can be confirmed by the eyes of the user.

[Brief description of drawings]

FIG. 1 is a sectional view of a clothes dryer according to an embodiment of the present invention.

FIG. 2 is a sectional view of a clothes dryer according to a second embodiment of the present invention.

[Explanation of symbols]

 1 Clothes Drying Drum 2 Motor 3 Pulley 4 Belt 5 Double Wing Fan 6, 7 Fan Pulley 8 Fan Belt 9 Circulating Wind Tunnel 10 Heater 11 Clothes 12 Intake Hole 13 Exhaust Hole 14 Controller 15 Exhaust Port 16 Door 17 Transparent Window 18 Dry and Wet Display Sheet

Claims (4)

[Claims] 1. A clothes dryer in which a transparent window is provided on a door of a clothes inlet, and a dry / wet display sheet that changes color depending on humidity is attached to the inside of the transparent window. 2. A clothes dryer in which a transparent window is provided on the front surface of the body of the clothes dryer and a circulating wind tunnel adjacent to the body, and a dry / wet display sheet that changes color depending on humidity is attached to the inside of the transparent window. 3. A wet / wet indicating sheet produced by dipping paper or cloth in an aqueous solution prepared by adding a fixing agent to a cobalt salt as a main ingredient, and then drying the wetted sheet. Clothes dryer. 4. The clothes dryer according to claim 1 or 2, further comprising a dry / wet indicating sheet, which is manufactured by applying a light scattering agent that discolors light when discolored due to water drops.