JPH0632078Y2 - Dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention is a dryer including a rotating drum for containing an object to be dried such as clothes, and an object to be dried inlet formed on an outer peripheral surface of the rotating drum. It is about.

<Prior Art> A conventional dryer equipped with a rotating drum, in which a material inlet for drying is formed on the outer peripheral surface of the rotating drum, is installed on the material inlet and the outer frame of the main body when the rotary drama is stopped. It is necessary to match the formed opening with each other.

Therefore, after operating the stop key to instruct the user to stop, the user waits until the rotary drum stops at a fixed position, opens the opening lid and the insertion port lid, and takes out the material to be dried.

<Problems to be Solved by the Invention> In the above-mentioned conventional technique, the time required for the rotary drum to stop at the fixed position is not constant every time, and it may be already stopped or may be still rotating during the fixed position stopping operation. I can't tell what I'm doing. Therefore, it is a problem that the rotating drum may make an emergency stop because the user waits even if it is already stopped, or the opening lid is opened even if the home position stop operation is in progress. There is a point.

Therefore, according to the present invention, the user can be informed that the home position stop operation is in progress, and it is possible to prevent the home position stop time from being lengthened due to the opening and closing of the wrong opening lid. With the goal.

<Means for Solving Problems> The problem solving means according to the present invention is, as shown in FIGS. 1 to 4, a stop signal generator 2 for generating a stop signal Y1 of the rotary drum 1 and the rotary drum 1. The drum fixed position detector 4 that generates a fixed position signal Y2 when the material inlet 3 of the dry object reaches a fixed position, and the first fixed position signal Y2 after the stop signal Y1 is generated by the stop signal generator 2. The constant position signal detecting device 21 and the first constant position signal Y2 detected by the constant position signal detecting device 21 starts a stop operation to stop the rotary drum 1 at the next constant position signal Y2 and then starts the next constant position signal Y2. The notification drive device 6 that has a fixed position stop device 5 that stops the rotary drum 1 with the position signal Y2, and that generates the notification drive signal Y3 during operation of the fixed position stop device 5, and the notification drive signal Y3. Receive the fixed position stop device And an informing device 7 for informing that 5 is in operation.

<Operation> In the above problem solving means, the user gives the stop signal Y
When 1 is generated, the home position stop device 5 causes the home position signal Y
The rotary drum 1 is stopped at the position where 2 occurs. During the fixed position stopping operation, the notification driving device 6 drives the notification device 7 to notify the user that the fixed position stopping operation is being performed. Therefore, it is possible to prevent the fixed position stop time from being lengthened due to the opening and closing of the opening lid by mistake, and the usability is improved.

<Embodiment> First, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a functional block diagram of a dryer showing a first embodiment of the present invention, FIGS. 2 (a) and 2 (b) are the same flow chart, FIG. 3 is the same vertical sectional view of the dryer, and FIG. Similarly, it is an electric circuit diagram.

And, as shown in the figure, the dryer of the present invention has a rotary drum 1
A stop signal generator 2 for generating a stop signal Y1, a drum fixed position detector 4 for generating a fixed position signal Y2 when the material inlet 3 of the rotary drum 1 reaches a fixed position, and the stop signal Y1. And a fixed position stop device 5 for stopping the rotary drum 1 to a position where the fixed position signal Y2 is generated, and the notification drive signal Y3 is generated during the operation of the fixed position stop device 5.
The notification drive device 6 that generates the alarm and the notification device 7 that receives and notifies the notification drive signal Y3 are provided.

As shown in FIG. 3, the rotary drum 1 is of a horizontal cylindrical shape that is rotatably supported by a box-shaped outer frame 8 by a shaft 1a. An opening / closing lid 9 that slides on the outer peripheral surface of the rotating drum 1 to open and close is provided. An opening 10 having substantially the same shape as the inlet 3 is formed on the upper surface of the outer frame 8, and the opening 10 is provided with an opening lid 12 rotatable about a shaft 11. On the other hand, the drum rotating device for rotating the rotating drum 1 is provided between the AC motor 15 capable of rotating in the forward and reverse directions by a signal from the control circuit 14 (FIG. 4) and between the electric motor 15 and the outer peripheral surface of the rotating drum 1. It comprises a belt 16 to be wound and an idler 17 which gives tension to the belt 16.

In the drum fixed position detector 4, the permanent magnet 18 arranged on the outer peripheral surface of the rotary drum 1 near the input port 3 and the rotary drum 1 are in a fixed position (the input port 3 and the opening 10 are aligned with each other. Position), the reed switch 19 is fixed to the outer frame 8 side at a position facing the permanent magnet 18.

As shown in FIG. 4, the stop signal generator 2 is a stop switch that outputs a stop signal Y1 when operated by a user, and is arranged on the upper surface of the outer frame 8.

The notification device 7 is a buzzer as a sounding device, and notifies the user by the sounding operation.

As shown in FIG. 1, the fixed position stopping device 5 includes a fixed position signal detecting means 21 for detecting a fixed position signal Y2 generated by the drum fixed position detector 4, and a fixed position of the drum fixed position detector 4. Generation period of signal Y2 (that is, rotary drum 1
Rotation period), which stores the latest one, and a constant shorter than the rotation period stored in the rotation period storage unit 22 from the time when the fixed position signal Y2 is detected by the fixed position signal detection unit 21. A delay means 23 for generating an output signal Y4 after a lapse of time (for example, a time corresponding to 70% of the latest rotation cycle), and an electromagnetic braking means for electromagnetically braking the electric motor 15 based on the output signal Y4 of the delay means 23. 24, and the fixed position signal Y2 is constant time t1
It comprises stop confirmation means 25 for confirming the stop of the rotating drum 1 by detecting that the output is continued for more than 0.5 seconds, for example.

The control circuit 14 constituting the fixed position stop device 5 and the notification drive device 6 is composed of a general one-chip type micro computer, and the drum fixed position detector is provided at its input terminal as shown in FIG. In addition to the lead switch 19 of No. 4 and the key input unit 27 including the stop switch 2, a drying sensor 28 for detecting the completion of drying of the material to be dried, a timer device 29 for setting the drying time, and the opening lid 12.
A lid switch 30 or the like for detecting the open / closed state of is connected.
Further, a buzzer as the notification device 7 for notifying the end of drying and a display device 3 for displaying various information are provided at its output terminal.
In addition to 2, etc., the electric motor 15 is connected via bidirectional thyristors 33, 34. In the figure, 35 is a commercial AC power supply.

The electric motor 15 normally rotates normally when the main winding 15a is energized (in the direction of the white arrow in FIG. 3), and at low speed when the main winding 15a is energized. Have the function to When full-wave current is supplied to the auxiliary winding 15b, a strong force in the reverse rotation direction is generated, and strong electromagnetic braking is applied when the electric motor 15 is in the forward rotation, and reverse rotation is performed when the electric motor 15 is stopped. When a half-wave current is applied to the auxiliary winding 15b, a force in the reverse rotation direction is generated and electromagnetic braking is applied during forward rotation, and reverse rotation is performed at low speed during stoppage.

In the above configuration, first, the stopping operation by the fixed position stopping device 5 will be described based on FIG. 2 (b).

During the normal rotation of the rotating drum 1 (while the main winding 15a of the electric motor 15 is energized with a full wave), the rotation cycle storage means 22 constantly monitors the state of the drum fixed position detector 4 and stores the latest detection cycle. .

Then, when the stop signal Y1 is generated from the stop signal generator 2, the fixed position stop device 5 starts operating (S1). That is, first, the fixed position signal detecting means 21 operates and waits until the fixed position signal Y2 is detected (S2). Fixed position signal Y
When 2 is detected, the delay means 23 operates, and waits until a time corresponding to, for example, 70% of the latest rotation cycle stored in the rotation cycle storage means 22 with reference to this time point (S3), When this time has elapsed, the electromagnetic braking means 24 operates to apply a half-wave current to the auxiliary winding 15b of the electric motor 15 to apply electromagnetic braking (S4).

Then, the rotary drum 1 becomes the fixed position again, and the fixed position signal Y2
Wait until the occurrence of (S5), the fixed position signal Y2
Is continued for a fixed time t1 (for example, 0.5 seconds) or more (S6), and when the fixed position signal Y2 is output for a fixed time t1 or longer, the stop confirmation means 25 causes the inertia of the rotary drum 1 to be reduced. Electric motor 1 judging that the force is sufficiently small
By stopping the power supply to 5 (S7), the rotary drum 1 is stopped at a fixed position. If the fixed position signal Y2 is not continuously output for a certain time t1 or more in step S6, it is determined that the rotating drum 1 has gone too far in the forward rotation direction from the fixed position, and the rotating drum 1 is electromagnetically braked in step S4. After waiting until the motor reversely rotates at a low speed and returns to the home position (S8), the rotary drum 1 is stopped at the home position by stopping the power supply to the electric motor 15 in step S9.

By the above operation, the rotary drum 1 stops at a fixed position in a short time without a large impact.

Next, the operation of the notification drive device 6 will be described with reference to FIG.

When the stop signal Y1 is generated during normal rotation of the electric motor 15 (S11) (S12), the notification drive device 6 starts driving the notification device (buzzer) 7 at a special rhythm different from that at the time of the abnormality notification (S13). . Thereafter, the fixed position stopping operation of FIG. 2 (b) described above is performed (14). At this time, the notification device 7 continues to be driven. Then, when the fixed position stop operation ends and the electric motor 15 stops, the driving of the notification device 7 is stopped (S15) to notify the user of the end of the fixed position stop operation.

That is, the buzzer 7 is driven at a special rhythm during the operation of the fixed position stopping device 5, and when the operation of the fixed position stopping device 5 is finished, the operation of the buzzer 7 is stopped. It can be easily discriminated that the operation is in progress, and it is possible to prevent the fixed position stop time from being lengthened due to the opening and closing of the opening lid 12 by mistake, and to improve the usability.

Next, a second embodiment of the present invention will be described. FIG. 5 is a vertical sectional view of a dryer showing a second embodiment of the present invention, FIG. 6 (a) is an enlarged vertical sectional view of the locking device when it is closed, and FIG. 6 (b) is the same of the locking device. FIG. 7 is an electric circuit diagram, FIG. 8 is a functional block diagram, and FIG. 9 is a flow chart.

In the present embodiment, the opening cover 12 is provided with a locking device 41, and the locking device 41 locks the opening cover 12 while the rotating drum 1 is being driven to prevent the opening of the rotating drum 1. Opening lid 1 only when completely stopped
Allows opening and closing of 2.

In the conventional dryer, when the opening lid 12 is opened while the rotating drum 1 is rotating, an emergency stop is performed. At this time, however, the rotating drum 1 does not stop at a fixed position unless it happens to coincide. . That is, it is unreasonable that the opening lid 12 can be opened and closed even though the dried object cannot be put in or taken out.

Therefore, in this embodiment, the safety can be improved by adding the locking device 41 to the dryer in the first embodiment.

The locking device 41 in this embodiment is shown in FIGS.
As shown in FIGS. (A) and (b), a hook 42 fixed to the opening lid 12 and having a V-shape in side view, and an electromagnetic solenoid 4 fixed to the outer frame 8
3, the electromagnetic solenoid 43 includes a cylindrical coil 44 fixed to the outer frame 8, a cylindrical magnet body 45 slidably fitted in the coil 44, and one end of the magnet body 45. And a moving body 47 fixed to the other end of the magnet body 45, the engaging body 46 extending from the above and engaging with the hook 42 when the coil 44 is energized.
A fixed body 48 which is arranged so as to face 7 and is fixed to the outer frame 8;
The moving body 47 is interposed between the fixed body 48 and the moving body 47.
Tensile spring 4 for urging (that is, engaging body 46) in the opening direction
9 and a regulation body 50 that regulates the movement of the moving body 47 in the direction of the fixed body 48. And the coil 44
Is connected to the output terminal of the control circuit 14 as shown in FIG.

On the other hand, the fixed position stop device 5 has a fixed position signal detecting means 21 for detecting the fixed position signal Y2 and a stop signal Y as shown in FIG.
After the occurrence of 1, the fixed position signal detection means 21 causes the fixed position signal Y2
Electromagnetic braking means 24 for stopping the electric motor 15 when
It consists of and.

Other configurations are the same as those in the first embodiment, and the same functional parts are designated by the same reference numerals.

In the above configuration, the lid switch 30 is used to open the opening lid 12
When the closed state is detected and the rotation start of the rotary drum 1 is instructed, the control circuit 14 causes the electromagnetic solenoid 43
The coil 44 is energized. Then, the hook 42 and the engaging body 46 are engaged with each other, and the opening of the opening lid 12 is blocked. After that, the electric motor 15 is energized to start the rotation of the rotary drum 1.

Next, the operation when stopped will be described with reference to FIG.

When the stop signal Y1 is generated during normal rotation of the electric motor 15 (S21) (S22), the notification drive device 6 starts driving the notification device (buzzer) 7 at a special rhythm different from the abnormality notification (S23). Then, it waits until the fixed position signal Y2 is generated (S24) and stops the electric motor 15 (S25). During this time, the notification device 7 continues to be driven. Then, when the electric motor 15 is stopped, the driving of the notification device 7 is stopped (S2
6) Then, the user is notified of the end of the fixed position stopping operation. Then, the energization of the coil 44 of the electromagnetic solenoid 43 is stopped (S27). Then, the engagement body 46 is pulled by the urging force of the tension spring 49 to release the engagement state with the hook 42, and the opening lid 12 can be opened and closed.

That is, since the locking device 41 is driven to prevent the opening lid 12 from opening while the rotating drum 1 is rotating, safety is improved.

It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

For example, the drum fixed position detector 4 may be configured by using an optical or electrical device instead of a magnetic device. Further, the operation of the fixed position stopping device 5 is not limited to that shown in the embodiment, and may be simpler or more complicated. Further, a voice synthesizing circuit may be used as the notification device 7, and a display element such as a light emitting diode or a liquid crystal display board may be used. Further, the fixed position stop device 5 and the notification drive device 6 may be configured without using a microcomputer. The locking device 41 in the second embodiment may be used separately from the notification drive device 6.

<Effect of the Invention> As is clear from the above description, according to the present invention, the stop signal generator for generating the stop signal for the rotating drum and the fixed position signal when the material inlet of the rotating drum reaches the fixed position. Drum constant position detector, a fixed position signal detection device for detecting the first fixed position signal after the stop signal is generated by the stop signal generator, and a first fixed position detected by the fixed position signal detection device. A fixed position stop device that starts a stop operation to stop the rotating drum with a next fixed position signal by a signal and stops the rotating drum with a next fixed position signal, and while the fixed position stop device is operating. A notification drive device that generates a notification drive signal, and a notification device that receives the notification drive signal and notifies that the home position stop device is in operation. motion In some cases, the notification drive device drives the notification device to notify the user that the home position stop device is in operation. It is possible to reliably prevent the rotating drum from touching the hand, and the user can surely recognize the end of the stopping operation by the fixed position stop device, and to take out the dried material to be dried from the rotating drum. It can be done in good timing and can improve the usage efficiency of the dryer.
Moreover, it is possible to eliminate the anxiety of the user who waits for the end of the stop operation, and it is possible to prevent the fixed position stop time from being lengthened due to the opening and closing of the wrong opening lid. effective.

[Brief description of drawings]

FIG. 1 is a functional block diagram of a dryer showing a first embodiment of the present invention, FIGS. 2 (a) and 2 (b) are the same flow chart, FIG. 3 is the same vertical sectional view of the dryer, and FIG. Similarly the electric circuit diagram,
FIG. 5 is a vertical sectional view of a dryer showing a second embodiment of the present invention,
FIG. 6 (a) is also an enlarged vertical sectional view of the locking device when it is closed,
FIG. 6 (b) is an enlarged vertical sectional view of the locking device when it is opened,
FIG. 7 is the same electric circuit diagram, FIG. 8 is the same functional block diagram, and FIG. 9 is the same flow chart. 1: rotating drum, 2: stop signal generator, 3: inlet for dried material, 4: drum fixed position detector, 5: fixed position stop device,
6: Notification drive device, 7: Notification device, 8: Outer frame, 12: Opening lid, 14: Control circuit, 15: Electric motor, 21: Fixed position signal detection means, 22: Rotation cycle storage means, 23: Delay means , 24: electromagnetic braking means, 25: stop confirmation means, 41:
Lock device, 42: hook, 43: electromagnetic solenoid, Y
1: stop signal, Y2: fixed position signal, Y3: notification drive signal.

Claims (1)

[Scope of utility model registration request] 1. A stop signal generator for generating a stop signal for a rotating drum, and a drum fixed position detector for generating a fixed position signal when an object to be dried of the rotating drum reaches a fixed position.
A fixed position signal detecting device that detects the first fixed position signal after the stop signal generator generates the fixed position signal, and the first fixed position signal detected by the fixed position signal detection device and the rotation at the next fixed position signal. And a fixed position stop device for starting the stop operation to stop the drum and stopping the rotating drum at the next fixed position signal, and generating a notification drive signal during operation of the fixed position stop device. And a notification device that receives the notification drive signal and notifies that the fixed-position stop device is in operation.