JPS58141197A - Drier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a clothes dryer that rotates a drum to agitate clothes while applying hot air.

In conventional dryers, the drum continues to rotate in one direction from the start of operation to the end of operation, which can cause the fabric to twist and wrinkle, or when drying a small amount of fabric, cause the fabric to form a dumpling. This had the disadvantage that hot air could not pass through the interior, and the dumpling-shaped interior would not dry even if the drying time was extended.

The present invention solves the above-mentioned conventional problems, and an embodiment thereof will be explained in detail below.
1 is, for example, a 100V AC tli source.

Reference numeral 2 denotes a timer, which is composed of a cam switch 3 and a tie 2/titer 4, and is configured to close the cam switch 3 for a set time. 6 is a heater as a heat source for heating the drying air; 6 is a drum and a blower mechanism that sends drying air into the tome; 4.3 blower fans (none of which are shown) are rotated; It is an IJ5 conductor motor, and 7 is its capacitor. Induction, 4 motor 6 is relay contact S
The direction of rotation is reversed when relay contact S1 is closed and when relay contact S2 is closed.

8 is a timer means, for example, for closing the relay contact S1 for several minutes;
After that, both relay contacts S, , S7 are opened for several seconds, and then relay contact S2 is closed for several tens of seconds.

After that, both relay contacts S, 52 open for a few seconds.
After that, repeat the cycle of closing the relay contact S1 again for several minutes.

Next, details of the timer means 8 will be explained. 2 and 9 are power transformers, 10 is a diode, and 11 is an electrolytic capacitor, which supplies DC power to the following circuits.

12 to 21 indicate circuit elements f for one-multivibrator configuration, 12, 16, 16, 18, 20 are resistors, 13.1
9 is a transistor, 14, 17.21 are capacitors, and the duty of inversion is determined by this multivibrator. A 20° resistor and a capacitor 21 constitute an integrating circuit, and the 20° resistor and capacitor 21 form a 31° resistor of the human cam voltage. Therefore, output B is output with a slow fall.

22, 23, and 24 are resistors for voltage division, and 25.degree. and 26 are comparators.As for the voltage outputs C and D divided by the resistors 22 and 23.24, C is higher than D. Reference numerals 27 and 28 are relays for controlling relay contacts S, , 82, which constitute the main body of the control section in the present invention.

29.30 is a protection diode.

FIG.
．． 28 coil current E, F and induction motor 6 11-1.
1 shows the relationship with the reversal operation. Here, when the single-handed force B of the comparator 26 becomes higher than the ten-handed force C, the relay 27 is activated, the relay contact S1 is closed, and the induction motor 6 rotates normally. When city 11B is between C and D, both relays 2
7, 28 are off, and relay contacts s, , s2 are open. When the voltage B becomes lower than D, the relay 28 is activated, the relay contact S2 is closed, and the induction motor 6 is reversed.

The above-mentioned induction motor 6 rotates normally, pauses, and reverses, and the drum similarly rotates normally, pauses, and reverses.

As described above, according to the present invention, by occasionally reversing the rotation of the drum, the twisting of the cloth is prevented and wrinkles are prevented, and even when a small amount of cloth is dried, it does not become lumpy. It is possible to prevent the drying of a single carp and to dry it evenly and in a short time.

[Brief explanation of the drawing]

Fig. 1 is a commercial circuit diagram of a dryer according to an embodiment of the present invention, and Fig. 2 shows the weight and weight of each part in the circuit. FIG. 3 is a diagram showing a current waveform and a rotation direction of a motor. 6... Heater (heat source), 6... Motor, 8... Timing means, 27, 28... Relay, 81. S2... mark: relay contact.

Claims (1)

[Claims] It is equipped with a drum for transferring clothes, a blowing mechanism for sending drying air into the drum, and a heat source for heating the drying air, and a timer for repeatedly elapsed for a certain period of time, and a timer for this time. The dryer is provided with a control section that controls the rotational direction of the drum according to an instruction from the dryer, and the drum can be operated in reverse by the control section.