KR100315832B1 - Cover lock devices such as washing machines - Google Patents

Abstract

The present invention relates to a cover lock device, such as a washing machine for locking a cover for opening and closing the opening of the machine body such as a washing machine, a dryer, a dishwasher, so that the cover can not be opened and closed by operation from the outside, if necessary, The object of the present invention is to prevent a child from entering the apparatus body and being forcibly locked. As a solution, the cover 9 for opening and closing the opening of the apparatus body is locked by the locking device 22, The holding device 24 is characterized in that the locking device 22 can be held in a locked state by an operation from the outside.

Description

Cover lock devices such as washing machines

The present invention relates to a cover lock device such as a washing machine for locking a cover for opening and closing an opening of an appliance body such as a washing machine, a dryer, a dishwasher, and the like.

Conventionally, the washing machine provided with this kind of cover lock device was comprised as shown in FIG. The configuration will be described below.

As shown in the figure, the rotating drum 1 forms a plurality of water passage holes 2 on the entire surface of the outer periphery, and is disposed in the drip tank 3 in a rotational manner. One end of the horizontal shaft 4 is fixed to the center of rotation of the rotating drum 1, and the drum pulley 5 is fixed to the other end of the horizontal shaft 4. The motor 6 is connected to the drum pulley 5 by the belt 7, and drives the rotary drum 1 to rotate. The cover body 9 is provided in the opening part of the washing machine main body (base body) 8, and it is comprised so that the cover 9 may be kept in the closed state by the locking device (not shown).

The drip tank 3 is suspended from the washing machine body 8 by the springs 10 and is dust-tightly supported so that the vibration at the time of dehydration is not transmitted to the washing machine body 8 by the vibration damper 11. At the same time, the weight 12 which reduces the vibration at the time of dehydration is provided. The heater 13 heats the wash water in the drip tank 3. The controller 14 controls the operations of the motor 6, the heater 13, and the like, and gradually controls a series of strokes such as washing, rinsing, and dehydration. Moreover, the control apparatus 14 is comprised so that the lock apparatus may be hold | maintained so that the lid | cover 9 cannot be opened during operation.

When the operation is explained in the above configuration, the lid 9 is opened to load laundry into the rotating drum 1, and when the operation is started, the lock device provided on the lid 9 is held, and the lid 9 is removed. It cannot be opened. In the washing stroke, the rotating drum 1 is driven to rotate at a low speed by the motor 6, and the laundry in the rotating drum 1 is lifted up and falls on the water surface. Thus, the washing administration proceeds. In the rinsing stroke, the same operations as in the washing stroke are performed.

In the dehydration stroke, the rotary drum 1 is rotated at high speed, and the laundry is centrifugally dewatered. At this time, if the deflection of the laundry in the rotating drum 1, that is, an imbalance occurs, the rotating drum 1 and the drip tray 3 vibrate, but damp the vibration by the anti-vibration damper (11) to the washing machine body (9) It is not delivered. When the dehydration stroke is completed, the lock device installed on the cover 9 is released, the cover 9 can be opened, and the laundry is taken out.

Therefore, the cover 9 can normally be opened and closed freely by manual operation, can put or take out laundry, and when it starts operation, the cover 9 cannot be opened automatically. Inadvertently opening the lid 9 can prevent the wash water in the rotating drum 1 from scattering.

In such a conventional configuration, the lid 9 can be opened and closed freely by manual operation when not in operation, and therefore the lid 9 can be opened and closed even by a child, and in particular, the washing machine body 8 In the case in which the cover 9 is installed on the front face (side) of the cover, the cover 9 is opened from the inside of the washing machine body 8 when the cover 9 is inserted into the washing machine body 8 while playing. Since the cover 9 could not be opened, there was a problem that the cover 9 could not be opened and was forcibly locked into the washing machine body 8.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and an object thereof is to prevent opening and closing of a cover by operation from the outside as necessary, and to prevent a child from entering the apparatus body and being forcibly locked.

1 is a partially cut away perspective view of a lock device such as a washing machine according to an embodiment of the present invention;

2 is a cross-sectional view of a washing machine equipped with a cover lock device such as a copper washing machine.

3 is a partially cut back view of a washing machine having a cover lock device such as a copper washing machine;

4 is a block circuit diagram of a washing machine having a cover lock device such as a washing machine;

5 is an enlarged front view of an operation unit of a washing machine having a cover lock device such as a washing machine;

Fig. 6 (a) is a perspective view of a state in which a cover of a cover lock device such as a copper washing machine is locked

Fig. 6 (b) is a perspective view of a state in which a cover of a cover lock device such as a washing machine is kept in a locked state.

7 is a cross-sectional view of a washing machine equipped with a cover lock device such as a conventional washing machine.

<Description of the symbols for the main parts of the drawings>

8: washing machine body (base) 9: cover

22: locking device 24: holding device

In the cover lock device of the washing machine or the like of the present invention, the cover for opening and closing the opening of the main body of the machine is locked by the lock device in a closed state, and the lock device can be kept in the locked state by the holding device by an operation from the outside. will be.

As a result, the lock device for locking the cover in the closed state can be kept in the locked state, and the cover can not be opened and closed by operation from the outside as necessary, so that a small child enters the main body of the device and is forcibly restrained. Can be prevented.

According to a first aspect of the present invention, there is provided a cover for opening and closing an opening of an apparatus body, a lock device for locking the cover in a closed state, and a holding device for maintaining the lock device in a locked state by an operation from the outside. If necessary, by the operation from the outside, the lock device for locking the cover in the closed state can be kept in the locked state, and the cover can not be opened and closed, so that a small child enters the main body of the device, Can be prevented.

According to a second aspect of the present invention, in the first aspect of the present invention, the holding device is capable of holding the lock device in a locked state in the initial state until the power is turned on and the operation is started. In general, the initial state until the power is turned on and the operation is started is a period for setting a course to operate by operating from the outside, and during this period, the lock device is easily locked by operation from the outside. It can be kept in a state, and it can prevent it from being able to open and close a cover.

According to a third aspect of the present invention, in the first aspect of the present invention, the holding device is configured such that the lock holding state of the lock device can be released from the initial state until the power is turned on and the operation is started. Therefore, the initial state until the power is turned on and the operation is started is a period for setting a course for operating from the outside and operating, and during this period, the lock holding state of the lock device can be easily released by the operation from the outside. The cover can be opened and closed.

In accordance with a fourth aspect of the present invention, in addition to the second or third aspect of the present invention, there is provided a control device for controlling the operation of the apparatus main body with an input facility means, and the holding device is characterized in that the input setting means is specified. When operating, the lock device can be kept in the locked state or released from the lock holding state. In the initial state until the power is turned on and the operation is started, the lock device is locked by a course setting or other operation. It can be released from the holding or locking holding state, thereby preventing the use of error and error operation.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the input setting means includes a plurality of switches, and when the at least two switches are operated simultaneously, the lock device is held or locked In the initial state until the power is turned on and the operation is started, the course is generally set by operating one switch, but the lock device is kept in the locked state or released from the locked holding state. In this case, by operating at least two switches at the same time, the operation can be distinguished from the operation such as the course setting and the like.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, when the switch is operated at least two times simultaneously for a predetermined time, the lock device can be held in a locked state or released from a locked state. In the initial state until the power is turned on and the operation is started, generally, one switch is operated for a short time to perform course setting or the like, but at least two switches are used to keep the lock device in the locked state or to release it from the locked holding state. At the same time, by operating for a predetermined time, it is possible to further distinguish the operation from the course setting and the like, and it is possible to prevent the mistaken use and the error operation.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In addition, the thing with the same structure as a conventional example attaches | subjects the same code | symbol, and abbreviate | omits description.

2 and 3, the first motor 15 rotates the rotary drum 3 at a low speed (for example, 53 rpm), and the second motor 16 rotates the rotary drum 1. Rotate at high speed (eg 1000 rpm). The first motor 15 and the second motor 16 are constituted by an induction motor, and are connected to the longitudinal pulley 19 via the belts 17 and 18, respectively. Doing.

The driven pulley 19 has two types of reduction ratios, the first motor 15 is connected to the driven pulley 19a having a large reduction ratio via the belt 17, and the second motor 16 is connected to the belt ( It is connected to the driven pulley 19b with a small reduction ratio via 18), and is fixed to the other end of the horizontal shaft 4 which fixed one end to the rotation center of the rotating drum 1. As shown in FIG.

The cover 9 opens and closes the opening of the theta base body (base body) 8, and as shown in Fig. 1, the hook 20 is opened in the direction of arrow A via the cover opening and closing lever 21. It is possible to lock the cover 9 in a closed state by attaching the hook 20 to the lock device 22 provided on the theta body 8.

That is, the locking device 22 is moved up and down by the spring 23, and when the cover 9 is closed, the hook 20 is locked against the elasticity of the spring 23 when the cover 9 is closed. When pressing downwards, the opening is moved in the direction of arrow B. When the click portion 20a of the hook 20 enters the lock device 22, the lock device 22 is moved upward by the spring 23. The click portion 20a of the hook 20 is caught by the locking device 22 to lock the lid 9 in the closed state. When opening the cover 9, by operating the cover opening and closing lever 21 in the direction of the arrow C, the hook 20 can be rotated upward to release the lock with the lock device 22 and the cover 9 can be opened. .

The holding device 24 holds the lock device 22 in a locked state at the time of operation from the outside or during operation. The holding device 24 operates by energizing the solede 25 and the solenoid 25. ) And a latching device (not shown) to hold the actuator 26 in two positions, when energizing the solenoid 25, the actuator 26 is pulled in and the energization of the solenoid 25 is cut off. The island-in-the-sea actuator 26 is caught in that state. When the solenoid 25 is energized again, the actuator 26 is removed and the actuator 26 is returned to its original position.

The holding | maintenance part 22a formed in the locking device 22 when the actuating piece 26a is formed in the front-end | tip part of the actuator 26, and the actuator 26 is pulled in the state which closed the cover 9. The locking device 22 is prevented from moving upward by the elasticity of the spring 23.

The control apparatus 27 controls the 1st motor 15, the 2nd motor 16, etc., and is comprised as shown in FIG. The control means 28 comprises a heater 13, a first motor 15, a second motor 16, a solenoid via a power switching means 29 constituted by a microcomputer and constituted by a bidirectional thyristor or the like. (25), the water supply valve (29), the drain pump (30) and the like are controlled, and a series of steps of washing, rinsing, and dehydration are gradually controlled. The heater 13 heats the washing water in the drip tank 3, the water supply valve 29 supplies water into the drip tank 3, and the drain pump 30 drains the washing water in the drip tank 3. will be.

The input setting means 31 inputs a setting course, start of operation, and the like required by the user. As shown in FIG. 5, a switch 31a for setting washing time, rinsing frequency, and dehydration time, respectively, (( 31b) and 31c, the course switching switch 31d, the start / pause switch 31e, and the like.

The display means 32 displays the setting contents, the operation state, etc. by the input setting means 31. As shown in FIG. 5, the display lamp 32a which displays the washing stroke rinsing stroke and the dehydrating stroke, respectively. ), (32b), (32c), course display lamps (32d), (32e), (32f) for displaying the driving course, and cover lock display lamp (32g) for indicating the locked state of the cover (9); And the cover lock holding display lamp 32h for indicating that the cover 9 is kept in the locked state.

The water level detection means 33 detects the water level in the drip tank 3, and the water temperature detection means 34 detects the water temperature in the drip tank 3 and inputs it to the control means 28, respectively. The rotation speed detection means 35 detects the rotation speed of the first motor 15 and inputs it to the control means 28. The storage means 36 stores data necessary for a series of control and the like.

The control means 28 drives the rotating drum 1 by the first motor 15 at low speed rotation such as washing, and starts it by the first motor 15 at high speed rotation such as dehydration. The drive is driven by the second motor 16. In addition, the control element 28 is connected to the fastening capacitor 37 of the first motor 15 in series with a bidirectional thyristor or the like, and is operated at high speed by the second motor 16. ), The fastening capacitor 37 of the first motor 15 is separated. In addition, 39 is a commercial power supply, 40 is a power switch.

The control means 28 closes the lid 9, turns on the power switch 40, turns on the start / pause switch 31e, and turns on the input setting means (in the initial state). 31) is energized to the solenoid 25 when a special operation, for example, the washing time setting switch 31a and the rinsing frequency setting switch 31b are simultaneously pressed for a predetermined time (for example, for 3 seconds), The lock device 22 can be held in a locked state, and then each switch of the input setting means 31 other than pressing the washing time setting switch 31a and the rinsing frequency setting switch 31b simultaneously for a predetermined time is accepted. I do not want to.

In addition, while the lock device 22 is kept in the locked state, the washing time setting switch 31a and the rinsing frequency setting switch 31b are simultaneously set for a predetermined time (for example, in the initial state until the start of operation). For example, when pressed for 3 seconds, the solenoid 25 is energized so that the lock holding state of the lock device 22 can be released.

In the initial state until the start of operation, when the operation is started without special operation of the input setting means 31, the solenoid 25 is energized and the lock device 22 is energized at the same time as the start of operation. In the locked state, when the operation is completed, the solenoid 25 is energized to release the lock holding state of the lock device 22.

In the above configuration, the operation of the input setting means 31 is explained by opening the lid 9, putting laundry into the rotating drum 1, closing the lid 9 and turning on the power switch 40. When the operation is started by operating the start / pause switch 3le, the water supply valve 29 operates to supply water, and when the switch detecting means 33 detects a predetermined switch, the water supply is stopped and the first motor ( 15). In the washing stroke, the rotary drum 1 is driven to rotate at low speed by the first motor 15, and the laundry in the rotary drum 1 is lifted up and dropped on the water surface.

At this time, the washing water in the drip tank 3 is heated by energizing the heater 13, the water temperature in the drip tank 3 is detected by the water temperature detecting means 34, and the temperature of the washing water is controlled to a substantially constant temperature. do. When the washing stroke is finished, the drain pump 30 operates to drain the wash water in the drip tank 3. Then, in the dehydration stroke via the rinsing stroke, the rotary drum 1 is rotated at high speed, and the laundry is centrifugally dewatered.

Next, an operation when the lock device 22 is kept in the locked state and the cover 9 cannot be opened and closed will be described with reference to FIG. 6. Fig. 6 (a) shows a state in which the lid 9 is closed and locked by the lock device 22, and since the solenoid 25 is not energized, the actuator 26 is not attracted. In this state, since the operation piece 26a formed at the tip end of the actuator 26 and the holding part 22a formed at the lock device 22 are not caught, the cover opening / closing part 21 is operated so that the hook ( By rotating 20) upward, the lock with the locking device 22 can be released, and the lid 9 can be opened.

Next, the cover 9 is closed, the power switch 40 is turned on, and in the initial state until the operation is started, the washing time setting switch 31a and the rinsing frequency setting switch 31b are simultaneously pressed for a predetermined time. The solenoid 25 is energized, and the actuator 26 is drawn in as shown in Fig. 6B. For this reason, the holding | maintenance part 22a formed in the lock apparatus 22 is caught by the operation piece 26a formed in the front-end | tip part of the actuator 26, and it restrict | rests the movement of the lock apparatus 22, and keeps it in the locked state. In addition, even if the cover opening / closing part 21 is operated, the cover 9 cannot be opened.

At this time, the cover lock holding display lamp 32h indicating that the cover 9 is kept in the locked state is turned on, and the cover lock display lamp 32g indicating the locked state of the cover 9 is also turned on.

Next, in the state shown in Fig. 6B, in the initial state until the operation starts, the washing time setting switch 31a and the rinsing frequency setting switch 31b are simultaneously pressed for a predetermined time, and the solenoid 25 ), The actuator 26 is returned to the state shown in Fig. 6 (a). For this reason, the operating piece 26a formed at the distal end of the actuator 26 and the locking device 22 The lock holding state is released, and the hook 20 is rotated upward by operating the cover opening / closing portion 21 to release the lock with the locking device 22, thereby (9) can be opened.

As described above, in the initial state until the power is turned on and the operation is started, the lock device (by the holding device 24) is pressed by simultaneously pressing the washing time setting switch 31a and the rinsing frequency setting switch 31b for a predetermined time. 22 can be kept in a locked state, so that the cover 9 can not be opened and closed by operation from the outside as necessary, such as when a child is playing near, so that the child can use the device body 8 It can be prevented from entering into the inside).

In addition, since the holding device 24 mechanically holds the lock device 22 in the locked state, after that, the power supply is cut off and continues, and the cleaning time is set in the initial state until the power is turned on and the operation starts. By simultaneously pressing the switch 31a and the rinsing frequency setting switch 31b for a predetermined time, the lock holding state can be canceled and the lid 9 can be opened.

In addition, since the lock device 22 can be kept in the locked state automatically during operation, it is possible to prevent the washing water in the rotating drum 1 from being scattered by inadvertently opening the lid 9 during operation.

Further, in the above embodiment, the lock device 22 is kept in the locked state by pressing the washing time setting switch 31a and the rinsing frequency setting switch 31b simultaneously for a predetermined time from the initial state until the start of operation. Although the lock holding state is released, other switches may be operated when the lock device 22 is kept in the locked state and when the lock holding state is released. Moreover, the number of switches to operate may be sufficient as the number distinguishable from normal operation.

In addition, although the washing machine has been described in the above embodiment, it is also possible to configure the washing machine in the same manner so that the lid cannot be opened and closed by operation from the outside as necessary, so that a small child enters the main body of the machine. , Can neglect to be held.

According to the first invention of the present invention as described above, the cover for opening and closing the opening of the device body, the lock device for locking the cover in the closed state, and the lock device to be kept in the locked state by the operation from the outside Since a retaining device is provided, the lock device for locking the cover in the closed state can be kept in the locked state, and the cover cannot be opened and closed by operation from the outside as necessary, so that the child can Can be prevented from entering into

Further, according to the second invention of the present invention, the holding device is configured so that the lock device can be held in the locked state in the initial state until the power is turned on and the operation is started, and the cover cannot be opened or closed. In the initial state from the start to the start of operation, the lock device can be easily kept in the locked state by an operation from the outside, so that the cover cannot be opened or closed.

Further, according to the third invention of the present invention, since the holding device is configured to release the lock holding state of the lock device in the initial state until the power is turned on and the operation is started, the power is turned on after the power is turned on. In the initial state, by the operation from the outside, the lock holding state of the lock device can be easily released, and the cover can be opened and closed.

According to a fourth aspect of the present invention, there is provided a control device having an input setting means for controlling the operation of the apparatus main body, and the holding phase is held or locked when the input setting means is specially operated. Since it is possible to release from the lock holding state, the lock device can be held in the lock state or released from the lock holding state in the initial state until the power is turned on and the operation is started. This prevents misoperation.

Further, according to the fifth aspect of the present invention, the input setting chatter consists of a plurality of switches, and when the at least two switches are operated at the same time, the lock apparatus can be held in the locked state or released from the locked holding state. It can be distinguished from the operation of course setting and the like, and it is possible to prevent the use of error and error operation.

According to the sixth aspect of the present invention, when the switch is operated at least two times simultaneously for a predetermined time, the lock device can be kept in the locked state or released from the locked state. It can prevent misuse and mishandling.

Claims (6)

And a lid for opening and closing the opening of the main body of the apparatus, a locking device for locking the lid in a closed state, and a holding device for holding the lock in a locked state by an external operation. Cover lock device. The cover lock according to claim 1, wherein the holding device is configured such that the lock device can be held in the locked state in the initial state until the power is turned on and the operation is started, and the cover cannot be opened or closed. Device. The cover lock device of a washing machine or the like according to claim 1, wherein the holding device is configured to release the lock holding state of the lock device in the initial state until the power is turned on and the operation is started. 4. A control apparatus according to claim 2 or 3, further comprising a control device having an input setting means for controlling the operation of the apparatus main body, wherein the holding device holds the lock device in a locked state when the input setting means is specially operated. Or a cover lock device such as a washing machine, wherein the cover lock device can be released from the lock holding state. 5. An input setting means according to claim 4, characterized in that the input setting means is constituted by a plurality of switches, and when the at least two switches are operated simultaneously, the lock device can be held in a locked state or released from a locked holding state. Cover lock devices such as washing machines. 6. The lock lock device of a washing machine or the like according to claim 5, wherein the lock device can be held in a locked state or released from a locked state when at least two switches are operated simultaneously for a predetermined time.

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