JP4500368B1 - Lid lock device and electric washing machine with lid lock device - Google Patents

Abstract

【Task】
Provided are a lid locking device having a lid locking mechanism that secures safety and lid opening / closing operability, and an electric washing machine having a locking mechanism in which the operation restriction of the lock member is released when the lid of the electric washing machine is in a fully closed position To do.
In an electric washing machine, a lid lock mechanism includes a lock member 61 that locks the lid opening, and first and second regulating means 60 and 71 that regulate the operation of the lock member 61. When the lid of the electric washing machine is fully opened, the first and second regulating means 60 and 71 regulate the operation of the lock member 61, and when the lid is half open, either the first or second regulating member 60 or 71 is used. The movement of the lock member 61 is restricted.
[Selection] Figure 1

Description

  The present invention relates to a lid cover locking device that opens and closes an opening provided in a device, and an electric washing machine including the lid locking device.

  The washing machine has a lid that opens and closes to cover the clothes slot, and for safety, a lid lock device is provided to lock the lid when it is closed to prevent the lid from opening during washing. It has been.

  In such a lid locking device, a lock member that prevents the lid from being opened is moved by being driven by a motor or a solenoid so as to maintain a locked state (see, for example, Patent Documents 1 and 2).

  In addition, the washing machine includes first detection means for detecting the locked state by the lock member, and second detection means for detecting that the lid is in the closed state. The operation of the washing machine is controlled based on the input information. (For example, see Patent Document 1)

JP 2009-061162 A JP 2005-177044 A

  As an example of the detection means of the above-mentioned document, a magnetic member (for example, a magnet) is provided on the lid side, and a magnetic proximity switch (for example, a reed switch) is provided at the lid closed position. The control device of the electric washing machine detects it as a signal.

  However, in order to obtain the electrical signal, a separate member is required, a circuit configuration is provided on the control board of the control device, and a wiring member or a connector that is fastened to the control board side is required. For this reason, the problem is that the control and the structure of the electric washing machine are complicated.

  In view of such a problem, the object of the present invention is to provide safety and lid opening / closing operability without providing a magnetic proximity switch (reed switch) or a magnetic member (magnet) provided on the lid side in detecting the lid opening / closing state. An object of the present invention is to provide a lid locking device having a secured lid locking mechanism, and an electric washing machine having the lid locking device.

The present invention provides a lid locking device that locks the lid so that the lid cannot be opened and closed when a device having a controller that controls the operation of the device and a lid that opens and closes an opening provided in the device body performs a predetermined operation.
The lid lock device includes a lock member that locks the lid, and first and second regulating means that regulate the operation of the lock member,
When the lid is fully opened, the first and second regulating means regulate the operation of the locking member, and when the lid is half open, either the first or second regulating member causes the movement of the locking member. When it is restricted and fully closed, the restriction of the lock member by the first and second restricting means is released.

The present invention includes a housing, a washing outer tub disposed inside the housing for collecting water, a washing inner tub for washing laundry disposed and stored in the washing outer tub, and washing in the washing inner tub. In an electric washing machine provided with a clothes insertion port for loading an object, a lid for opening and closing the clothing insertion port, a control circuit for controlling a washing process, and a lid locking device for locking the lid so that it cannot be opened and closed,
The lid lock device includes a lock member that locks the lid, and first and second regulating means that regulate the operation of the lock member,
When the lid is fully opened, the first and second regulating means regulate the operation of the locking member, and when the lid is half open, either the first or second regulating member causes the movement of the locking member. When it is restricted and fully closed, the restriction of the lock member by the first and second restricting means is released.

  In the electric washing machine to which the present invention is applied, when the lid is closed from the open state, the restriction of the lock member by the first restricting means is first released, and when the cover is further closed, the first and second restrictions are applied. A configuration in which the restriction of the lock member by the means is released can be adopted.

  In the electric washing machine to which the present invention is applied, when the lid is opened from the closed state, the movement of the lock member is first regulated by the second regulating means, and when the lid is further opened, the first and second It is possible to adopt a configuration in which the movement of the lock member is regulated by the regulating means.

  In the electric washing machine to which the present invention is applied, it is preferable that the first and second regulating means provided in the lid locking device directly regulate the movement of the locking member.

  According to the present invention, the lid lock mechanism for regulating the lock member of the lid lock device by the first and second regulating means is provided, and it is unnecessary to detect the lid open / close state other than by the lid lock device, and control of the electric washing machine It is possible to secure the high safety by securely locking the lid while simplifying the circuit and wiring and reducing the cost.

FIG. 3 is a cross-sectional view of the lid lock mechanism of the electric washing machine of the present invention with the lid open. It is sectional drawing of a state of lid half-opening and lid half-closing in the lid lock mechanism of the electric washing machine of the present invention. It is a state sectional view of a lid fully closed in a lid lock mechanism of an electric washing machine of the present invention. It is a state sectional view of a lid lock in a lid lock mechanism of an electric washing machine of the present invention. It is a state sectional view in which the first restricting means regulates the operation of the lock member of the lid locking device by opening the lid in the lid locking mechanism of the electric washing machine of the present invention. It is a state sectional view in which the second regulating means regulates the operation of the lock member of the lid lock device by opening the lid in the lid lock mechanism of the electric washing machine of the present invention. It is a top external appearance perspective view of a lid closed state in an electric washing machine of the present invention. It is a top external appearance perspective view of a lid open state in an electric washing machine of the present invention. It is a top external appearance perspective view for showing the lid latching part of a front opening-and-closing lid in the electric washing machine of the present invention. It is the upper external appearance perspective view which expanded the site | part of the lid latching | locking part in the electric washing machine of this invention. It is a top view of the electric washing machine (lid closed state) of the present invention, and is a figure showing the position of a lid lock device. It is a top view of the electric washing machine (lid open state) of the present invention, and is a figure showing a position of a lid lock device. It is a state sectional view of the lid lock seen from the side in the lid lock mechanism of the electric washing machine of the present invention. It is a figure which shows schematically a front external view and an internal structure in the electric washing machine of this invention. It is a flowchart of the lid | cover lock operation | movement in the electric washing machine of this invention. It is a flowchart of the lid unlocking operation in the electric washing machine of the present invention. It is a block diagram of the structure in the electric washing machine of this invention. It is a timing diagram which shows the timing of the lock member position detection of the lid locking device in the electric washing machine of the present invention, and the amount of movement of the lock member.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings to be referred to below, in FIGS. 1 to 6, the periphery of the lid is shown on the left side and the inside of the lid locking device is shown on the right side.

(Schematic configuration of electric washing machine)
A washing outer tub 10 provided with a housing 1 and a housing lower cover 2 for appearance and storing water inside, and a washing inner tub 11 in which a washing inner tub dewatering hole 13 is formed further inside the washing outer tub 10. The washing tub cover 9, the lint net 17 and the stirring blade 12 are arranged, and a washing tub balancer 19 is provided on the upper part. The washing inner tub 11 is provided with a washing tub shaft 14, thereby rotating the washing tub main motor 15. Washing and dehydration are performed as power, an upper cover 3 is provided on the casing 1, a tap water supply port 16 and a clothing insertion port 8 are formed in the upper cover 3, and the front opening / closing lid 6a and the rear opening / closing lid 6d And a control circuit equipped with a microcomputer for controlling the washing process is provided inside the operation panel 4 on the front surface of the upper cover 3, and the lid 5 is used when the washing inner tub 11 rotates at high speed (for example, dehydration). User) A lid locking device 18 is formed by integrally forming a lid engaging portion 7 for ensuring safety and locking the lid 5 so that the lid 5 including the front opening / closing lid 6a and the rear opening / closing lid 6d cannot be opened / closed. In the electric washing machine (see FIG. 14) having a structure, a lid lock mechanism is provided to ensure the safety of the user in the process (such as dehydration rotation) in which the washing inner tub 11 rotates at high speed. (See FIGS. 11, 12, and 13).

(Configuration of lid lock device)
The case 40 of the lid lock device 18 incorporates a lock member 61 that is a member that engages with the lid locking portion 7 and locks the lid 5, and a rotating member 53 that drives the lock member 61 to advance and retract. . Further, a protruding position detecting contact 76 for detecting that the lock member 61 has protruded to the lock completion position, a first restricting means 60 for restricting movement of the lock member 61, and a second restricting means 71 are incorporated. Yes.

  The rotating member 53 is driven by decelerating the output of a motor (not shown) to a predetermined speed and output torque by a decelerating mechanism. Here, since the motor uses an AC synchronous motor, the rotation member 53 can be controlled to have a required rotation amount by controlling the energization time.

  The output torque of the rotating member 53 is set to a torque that ensures the contact pressure of the protruding position detection contact 76.

  The rotation member 53 is provided with a shaft 53 a for transmitting a rotational force to the lock member 61 at a position eccentric from the rotation center axis of the rotation member 53. The shaft 53 a is fitted into a hole 61 a provided in the lock member 61, and serves as a crank mechanism that converts the rotation of the rotation member 53 into the forward and backward movement of the lock member 61.

  The first restricting means 60 is movable up and down so as to be pushed in by the lid engaging portion 7 when the lid 5 is closed. And when it moves downward, the restriction | limiting to the lock member 61 is cancelled | released.

  The second restricting means 71 is rotatable so as to be pushed down by the first restricting means 60. And when it rotates below, the restriction | limiting to the lock member 61 is cancelled | released.

  The first regulating means 60 engages with the lid locking portion 7 when the lock member 61 tries to advance when the lid 5 is fully opened as shown in FIG. It restricts so that it cannot advance to the position where it does. The first restricting means 60 is urged in a direction to restrict the lock member 61 by an urging means such as a spring (not shown).

  The second restricting means 71 is half-opened (or half-closed when attempting to open) when the lid 5 is closed, and the first restricting means 60 is pushed in so that the lock member 61 is not restricted. The lock member 61 is restricted so that it does not advance even at times.

  The movement restriction by the second restriction means 71 is performed when the interference part 71 a provided in the lock member 61 abuts the interference part 71 a provided in the second restriction means 71. The second restricting means 71 is urged in a direction to contact the lock member 61 by an urging means such as a spring (not shown).

(Operation of the lid locking device 18)
The operation of the lid lock device 18 when the lid 5 is opened and closed will be described.

  When the lid 5 is closed from the fully open state (see FIG. 1), the lid locking portion 7 of the lid 5 first pushes the first restricting means 60 into the half open state (see FIG. 2). In the first restricting means 60, the lock member 61 is not restricted.

  When the lid 5 is further closed and the second restricting means 71 is pushed in by the first restricting means 60 to be in the fully closed state (see FIG. 3), the second restricting means 71 and the lock member 60 are engaged. The restriction by the second restricting means 71 is also released.

  In this position, the lock member 61 can advance to the lock position where it engages with the lid locking portion 7. In this state, by controlling the lid lock device by the control unit, the lock member 61 can be projected to the engagement position to complete the lid lock (see FIG. 4). The control of the locking operation will be described later.

  The movement when opening the lid 5 will be described. First, the lid locking device 18 is controlled to release the engagement of the lock member 61 so that the lid 5 is opened.

  When the lid 5 is opened from the fully closed state (see FIG. 3) where the lock is released, the second restricting means 71 engages with the lock member 61 and moves in a semi-closed state (see FIG. 2). It will be in a state to regulate. When it is further opened and fully opened (see FIG. 1), the first restricting means 60 is also in a state of restricting the movement of the lock member 61.

  As described above, since the first restricting means 60 and the second restricting means 71 are biased in the restricting direction, the lock member 61 is moved to a position for restricting the lock member 61 simply by opening the lid 5.

  Here, when the lid 5 is fully open, the lid locking portion 7 does not interfere with the movement of the first restricting means 60 as shown in FIG. On the other hand, when the lid 5 is fully closed, the first regulating means 60 and the second regulating means 71 are moved by the lid locking portion 7 as shown in FIG. Is in a released state.

  Further, the state in which the lid 5 is half-opened is a state in which the lid locking portion 7 starts to come into contact with the first restricting means 60 and the restriction to the lock member 61 is released (the lower end of the lid locking portion 7 is The lid 5 is further closed from the time (position (a) in FIG. 1), and the second restricting means 71 does not come into contact with the lock member 61, and the restriction to the lock member 61 by the second restricting means 71 is performed. Is released until the locking member 61 is closed to a state where the locking member 61 can protrude to the locking position (the lower end of the lid locking portion 7 is at the position (B) in FIG. 3).

  The operation of the lid locking device 18 when locking the lid will be described with reference to the timing chart of FIG.

  The position control of the lock member 61 is performed by setting the rotation position of the rotation member 53 to the position where the cover lock is released (the position of the lock member 61 in FIG. 1) is the 0 ° angle, and the position is locked (the lock member in FIG. 4). The control is performed with the position 61) at 180 °.

  When the motor is energized to rotate the rotating member 53, the lock member 61 protrudes forward by the link mechanism described above.

  When the lock member 61 advances to a predetermined position, the protruding position detection contact 76 is closed. The control device detects this signal, advances the lock member 61 for a predetermined time after the detection, moves it to the lock position, and stops (see FIG. 4). At the place where the signal of the protruding position detection contact 76 is detected, the lid locking portion 7 and the lock member 61 are in a position where they start to be engaged and the lock is unstable. . In this case, the position at an angle of 180 ° is the maximum advancing position, but this position is a place corresponding to the top dead center of the crank mechanism, and if it stops here, it will start to move manually when an abnormality such as a power failure occurs. Cannot be used. Therefore, it stops at a position rotated further than 180 °.

  In this way, the contact pressure of the protruding position detection contact 76 can be secured, and the contact can be cleaned by wiping the contacts with each other after contact.

(When the lid is opened while the lid is locked)
Next, a case where the lid 5 is opened during the lid locking operation will be described.

  In the case of a lid lock device that moves and locks the lock member 61 using an AC synchronous motor as a drive source as in the present invention, it takes about 1 second from the start of the lock operation to the completion of the lock. For this reason, an operation of opening the lid 5 may be performed before the lock is completed. At this time, the lock member 61 protrudes and can move to the lock position, and the control device may erroneously determine that the lid is closed despite the lid 5 being open. is there. This causes a malfunction that the washing tub starts to rotate while the lid 5 is open.

  When the lid 5 is opened in the middle of locking from the fully closed state (FIG. 3), the interference part 71a of the second restricting means 71 contacts the interference part 61f of the lock member 61 to restrict the movement (see FIG. 6). The protruding position detecting contact 76 is not closed. Even when the second restricting means 71 is opened at a position where it cannot be restricted, the lock member tip 61d hits the restricting wall 60a of the first restricting means 60 to restrict the movement (see FIG. 5). The protruding position detection contact 76 is not closed.

  By operating in this way, the control device cannot obtain a signal from the protruding position detection contact 76 even after a predetermined time has passed since the motor is energized. The user is informed of the error “the lid is open” without proceeding to the process of rotating a certain washing tub, and prompts the user to close the lid 5.

  Between the front end portion 61d of the lock member 61 and the regulating wall 60a of the first regulating means 60 in the lid locking device 18, the lid opening that is the range in which the locking member 61 can move when the lid 5 is opened. The detection range 25 is secured (FIG. 1), and even when the lid 5 is opened until the lid lock is completed, the lock member 61 hits the regulation wall 60a, so that the projection to the lock position is regulated. (See FIG. 5).

  Here, the surface of the lid lid locking portion 7 that faces the lid locking device 18 and the surface of the restriction wall 60a are located at the same surface position with respect to the lid locking device 18, so that the lid 5 is opened halfway. Even in the state (even during the closing), the movement of the lock member 61 is restricted as in the case of the restriction wall 60a. This means that even when the lock member 61 tries to move between the state of FIG. 3 and the state of FIG.

  Here, the case where the lid opening detection range 25 is narrow will be described. When the lid 5 is closed and becomes in the state shown in FIG. 3 and the lid 5 is opened during the locking operation, the first restriction is applied. Before the means 60 moves to the position where the lock member 61 is restricted, the lock member 61 advances to the lock position in such a state that the lock member 61 rides on the first restriction means 60. For this reason, the protrusion position detection contact 76 is operated, and the control device mistakenly detects that the lock has been completed and shifts to the next process, and the purpose of the lid lock cannot be achieved. In order to prevent this, the lid open detection range 25 (the range in which the lid 5 is detected as “lid open” even if the lock member 61 can move) is not detected by the protruding position detection contact 76 of the lock member 61. It is preferable to secure as much as possible within the range (see FIG. 1).

  Therefore, it is necessary to secure a large lid opening detection range 25 in consideration of the movement time of the lock member 61 so that the lid opening device 18 is restricted even when the lid opening operation is performed at any position during the locking operation. is there.

(Explanation when the lid is opened during the control of the lid locking device of the present invention)
As described above, a problem when it takes time to move the lock member 61 until the lid lock is completed is when the lid opening operation is performed during the movement of the lock member 61 until the lock is completed.

  In this case, the lock member 61 of the lid locking device protrudes while the lid is open, and a signal indicating that the lid is locked is issued, and the control device erroneously determines that the control upper lid is closed. End up.

(Detecting means for lid opening operation, first regulating means)
At this time, since the operation of the washing rotator starts to rotate while the lid is open, the first regulating means for regulating the movement of the lock member 61 in conjunction with the lid position in the lid locking device. This is avoided by providing 60 with the lid locking device (shown in FIG. 5).

  That is, even when the lock member 61 of the lid lock device 18 protrudes with the lid 5 open, the movement is restricted by the restriction wall 60a of the first restriction means 60, so that the lock member 61 can be closed until the lid lock is completed. It prevents it from protruding to the position. In this case, a range in which the position of the lock member 61 cannot be detected as a signal of the protruding position detection contact 76 is preferable. Thereby, the control device cannot detect the signal of the protruding position detection contact 76 when the lid lock is completed (see FIG. 4), and determines that the lid 5 is open, and the next step is to rotate the washing tub. The user is informed of an error (the lid is open) and the user is prompted to close the lid 5.

  The lid opening detection is a range in which the lock member 61 can move when the lid 5 is opened between the distal end portion 61d of the lock member 61 and the regulating wall 60a of the first regulating means 60 in the lid locking device. The range 25 is secured, and even when the lid 5 is opened before the lid lock is completed, the lock member 61 hits the regulation wall 60a, so that the projection to the lock position can be regulated (FIG. 5). reference).

  Here, the surface of the lid cover engaging portion 7 that opposes the locking device 18 and the surface of the restriction wall 60a are located at the same surface position with respect to the locking device 18, so that the lid 5 is opened halfway ( The same is true during the closing.) Even in the state, the movement of the lock member 61 is restricted as in the case of the restriction wall 60a. This means that even when the lock member 61 is about to move between the state shown in FIG. 3 and the state shown in FIG. That is, even when the lid 5 is opened until the controller stops detecting the movement of the lock member 61 during the operation of locking the lid and the movement of the lock member 61 is stopped, the lock member 61 outputs the signal of the protruding position detection contact 76. It is possible to prevent movement until it has started (see FIG. 5).

  Here, the case where the lid opening detection range 25 is narrow will be described. When the lid 5 is closed and becomes in the state shown in FIG. 3 and the lid 5 is opened during the locking operation, the first restriction is applied. Before the means 60 moves to the position where the lock member 61 is restricted, the lock member 61 advances to the lock position in such a state that the lock member 61 rides on the first restriction means 60. For this reason, the protrusion position detection contact 76 is operated, and the control device mistakenly detects that the lock has been completed and shifts to the next process, and the purpose of the lid lock cannot be achieved. In order to prevent this, the lid open detection range 25 (the range in which the lid 5 is detected as “lid open” even if the lock member 61 can move) is not detected by the protruding position detection contact 76 of the lock member 61. It is preferable to secure as much as possible within the range (see FIG. 1).

  Therefore, it is necessary to secure a large lid opening detection range 25 in consideration of the movement time of the lock member 61 so that the lid opening device 18 is restricted even when the lid opening operation is performed at any position during the locking operation. Yes (see FIG. 1).

(Explanation of how to control the lock member operation when the lid is opened during control)
However, when it is attempted to regulate only by the first regulating means 60, the control device is in a state where there is no signal from the protruding position detecting contact 76 until the lid lock is completed. For this reason, a motor will be controlled in the state which cannot grasp | ascertain the motor position of a cover locking device, ie, the exact position of the locking member 61. FIG.

  Accordingly, the position of the lock member 61 for performing the next unlocking operation cannot be recognized when positional accuracy (lid unlocking position) is required for controlling the electric washing machine. Therefore, there is no guarantee that the lock member 61 is stopped at the initial position (the lid unlocking position, see FIG. 3), and the lid opening / closing operability and the lid locking purpose cannot be achieved due to interference or the like when the lid is opened / closed.

  In order to achieve the lid opening / closing operability and the lid locking purpose, a second regulating means 71 is provided to suppress the protrusion of the locking member 61 of the lid locking device, thereby providing a motor for the lid locking device in the lid open state of the electric washing machine. The protrusion of the lock member 61 of the lid lock device is restricted within a range that is not affected by the lid opening / closing operability even when the lid is driven. This is a detection mechanism that is also interlocked with the first restricting means 60 of the lid lock device that is interlocked with the lid opening / closing operation of the electric washing machine, and serves as a detection means (see FIG. 4).

  In other words, the first restricting means 60 that interlocks with the lid opening / closing operation of the electric washing machine is provided in the lid lock device, and the first restricting means 60 sufficiently secures the lid opening detection range 25 as the lid position detection range. Securing the lid opening detection range 25 sufficiently means that the amount of protrusion of the locking member 61 of the lid locking device increases when the motor is driven in the lid open state, and depending on the position where the locking member 61 stops, the lid The object of interference and lid lock may not be achieved during opening and closing operations.

(When the lid lock detection is activated with the lid open, the second restriction means)
In addition to the first restricting means 60, the second restricting means 71 that suppresses the protrusion of the lock member 61 is provided on the lid locking device. By adopting such a configuration, the position accuracy of the lock member 61 in a state where position detection cannot be performed is ensured, and the signal output of the protruding position detection contact 76 of the lock member 61 by the lid lock device motor rotational force until the lid lock is completed. The lid lock mechanism is not affected by the lid opening / closing operation of the electric washing machine.

  Even when the lid is not fully closed (see FIG. 3), even if the lid locking device moves the locking member 61, the second regulating means 71 regulates the locking member 61. There is no interference when opening and closing.

  In the case of using a magnetic proximity switch (generally a reed switch) which is a general electrical detection means, the same effect as that of not starting the lid lock device itself is obtained.

  Also, when the lid is half open, either the first or second regulating means regulating the locking member of the lid locking device regulates the movement of the locking member. Safety can be ensured even if the device malfunctions. That is, the lock member does not move even if the motor is moved.

(Cover unlocking operation in case of power failure)
In the electric washing machine, the lock member can be operated from the outside as a countermeasure when the lid cannot be opened in the lid locked state due to a power failure or the like in the lid locked state (see FIG. 4). It is set as the structure which can be manually operated to the position of 1, and it can cancel | release manually from the lid lock stop state at the time of a power failure. Moreover, an accurate position can be grasped | ascertained by resetting the lock member 61 to a lock release position (refer FIG. 4) after manual cancellation | release.

(Circuit block and flowchart)
FIG. 17 is a block diagram of a control device of the electric washing machine. A control circuit 80 such as a microcomputer is connected to the switch of the operation panel 4 of each switch for setting the operation mode of the electric washing machine, the water level sensor 31, the lid open / close detection 24, etc. Receive various information signals in the drying process. The main motor 15, the drain valve 30, the water supply valve provided at the tap water supply port 16, the lid lock device 18, and the like are controlled by the output from the control circuit 80. Further, a display unit 33 is connected to inform the user of the operating state of the washing machine.

  The operation of the lid lock when the lid 5 is closed will be described with reference to the flowchart shown in FIG.

  The case where a general washing course (washing, rinsing, final dehydration, and termination) is executed is taken as an example.

  The timing for performing the lid lock (lid lock control) is before the intermediate dehydration step after the end of rinsing. As an initial setting, the lid is not locked in the washing process. The reason for this is that there is a high need for convenience in which clothes can be put in the middle, but a setting to lock the lid from the washing process is also provided to prevent mischief.

Step 91
The clothes are input, the weight of the clothes is detected, and tap water is supplied from the tap water supply port 16 according to the weight of the clothes. The washing process time is automatically set according to the clothing weight. The user can arbitrarily set the washing time and the amount of tap water. Thereafter, the washing step is finished.

Step 92
After completing the washing process and the rinsing, it is necessary to complete the lid lock in order to execute the dehydration process. The motor of the lid lock device 18 is energized.

Step 93
It is detected whether the lock member 61 of the lid lock device 18 is projecting to the lid lock position. Here, the process branches after confirming whether or not the protruding position detection contact 76 has been turned ON.

Step 94
After detecting the ON of the protruding position detection contact 76, electricity is supplied for a predetermined time to cause the lock member 61 to protrude to the stop position after the locking is completed.

  Until the motor is stopped, it is defined by the time during which the motor of the lid lock device 18 is energized. During this time, for example, the motor is stopped 0.36 seconds after the protrusion position detection contact 76 is turned ON (50 Hz condition). The rotation position of the motor is controlled by setting the lid unlocking position (the position of the locking member 61 in FIG. 1) to an angle 0 ° position, and the lid locking position (the position of the locking member 61 in FIG. 4) having advanced to the maximum at 180 °. Yes.

  The lid lock position is set to a rotation stop position of 180 ° or more in consideration of contact reliability and securing of the stroke amount of the lock member 61, so that the contact (movable) 57 and the contact (fixed) 58 for detecting the position of the lock member 61 are used. Wiping (contact surface self-cleaning) for rubbing the surface of the contact can be ensured, and contact reliability can be improved.

Step 95
The motor energization stop control is performed 0.36 seconds (50 Hz condition) after the position detection is turned on. In the state shown in FIG. 4, the lock member 61 protrudes and the position detection signal is ON and the lid is fully closed. It becomes the condition that can be transferred to the dehydration process.

Step 96
The control device achieves the lock completion (the state shown in FIG. 4) and starts energizing the washing tub main motor 15 of the electric washing machine.

Step 97
After the energization of the washing tub main motor 15 is started, the dehydration process is started, and the washing inner tub 11 in which clothes are put is rotated. The rotational speed of the washing inner tub 11 is increased stepwise, and the maximum rotational speed is about 700 rpm.

  A lid lock mechanism is provided in order to avoid dangers such as opening the lid and putting a hand into the washing inner tub 11 during the dehydration process.

Step 98
This is a state in which there is no ON signal of the protruding position detection contact 76, that is, a state in which the lid is fully opened or the lid is half open (shown in FIGS. 2 and 5). Since the lid cannot be locked, the control stops energization of the motor of the lid locking device 18 and stops the operation of the lid locking device 18. The state in which there is no signal of the protruding position detection contact 76ON is made possible by either the first restricting means 60 or the second restricting means 71 restricting the operation of the lock member 61. .

Step 99
The above state is notified to the user by a buzzer 32 and a display unit 33 (not shown). If the lid is fully open, the lid can be fully closed, or if the lid is semi-closed or half-open, it can be understood from the user's standpoint that there is a malfunction / lid abnormality. Safety can be ensured by taking it.

  Next, the control for releasing the lid lock and opening the lid 5 will be described with reference to the flowchart of FIG.

Step 105
This is a process until the rotation of the washing inner tub 11 is completely stopped after dehydration for a specified time and the energization of the washing tub main motor 15 is stopped.

Step 106
To complete the dehydration process, the retracting position 23 of the lock member 61 is controlled by the rotational force of the lid lock device motor until the lid lock release is completed until the lid lock release is completed.

Step 107
Whether or not the lock member of the lid lock device is retracting to the lid unlock position is detected for control. Here, the process branches after confirming whether or not the lock member position detection is turned off.

Step 108
After detecting the lock member position detection from ON to OFF, the lid lock motor continues to be energized, but the time until the motor stops is specified. As the flow here, the motor is stopped 0.67 seconds after the lock member position detection is turned off (50 Hz condition).

  That is, it is a position where the lock member 61 stops. Although the time from the position detection OFF is arbitrary depending on the lid lock configuration of the electric washing machine, in the present invention, it is controlled as the position of the lock member 61 shown in FIG. The rotation position of the motor is the lid unlocking position (the position of the locking member 61 in FIG. 1) is 0 ° position, the lid locking position (the position of the locking member 61 in FIG. 4) is 180 ° position, and the lid unlocking position (in FIG. 1). Control is performed by setting the position of the lock member 61) to a 360 ° (0 °) position.

Step 109
The motor energization stop control is performed 0.67 seconds (50 Hz condition) after the position detection is turned off. In the state shown in FIG. 1, the lock member 61 is in the retracted position and the lid lock is released.

Step 110
After energization of the lid lock motor is stopped, the process can proceed to the next step. In the case of the washing process here, the lid is unlocked at the end of the final dehydration process, and the washing process is completed.

Step 111
Since there is no lock member position detection OFF signal, that is, the lid lock state (shown in FIG. 4) cannot be released, the control stops energization of the lid lock motor and stops the operation of the lid lock device. The state without the lock member position detection OFF signal is an abnormal state in which the lid locking device is out of order or is not controlled.

Step 112
The above state is notified to the user by a buzzer 32 and a display unit 33 (not shown). From the above, it is possible to grasp from the user's standpoint that the lid lock device is out of order or is out of control.

The above is a state in which the lid cannot be opened, and is the same state when a power failure occurs when the lid is locked.
Since the user cannot open the lid, this is inconvenient, so the lock member is operated from the outside as a countermeasure when the lid cannot be opened due to a power failure or the like when the lid is locked (see Fig. 4). The lock member is configured so that the lock member can be manually operated from the position of FIG. 4 to the position of FIG. 1, and can be manually released from the lid lock stop state at the time of power failure. Moreover, an accurate position can be grasped | ascertained by resetting the lock member 61 to a lock release position (refer FIG. 4) after manual cancellation | release. However, manual release can only be performed by professional engineers who have received specialized knowledge and technical guidance.

  According to the lid locking mechanism described so far, the lid locking mechanism for regulating the lock member 61 by the first and second regulating means is provided, and the lid opening / closing position detection (reed switch) is not provided by a separate member. It is possible to provide an electric washing machine that can achieve safety and ensure the lid opening / closing operability of the electric washing machine.

  DESCRIPTION OF SYMBOLS 1 ... Housing | casing, 2 ... Housing | casing lower cover, 3 ... Upper cover, 4 ... Operation panel part, 5 ... Cover, 6a ... Front opening / closing lid, 6d ... Back Opening and closing lid, 7... Lid locking portion, 8... Upper cover clothing input port, 9... Washing tub cover, 10 .. washing outer tub, 11. Stirrer blade, 13 ... Washing tub dewatering hole, 14 ... Washing tub shaft, 15 ... Washing tub main motor, 16 ... Tap water supply port, 17 ... Lint net, 18 ... -Lid lock device, 19 ... Wash tub balancer, 22 ... Lid lock device motor projecting position due to rotational force of lid lock device motor until lid lock is completed, 23 ... Lid lock device motor until lid lock release is completed The retracting position of the lock member 61 by the rotational force, 24... Projection position signal of the clamp member 61, 25 ... lid open detection range, 40 ... case, 47 ... terminal, 53 ... rotating member having a shaft for transmitting rotational force, 53a ... rotation Axis of member, 54 ... plate, 55 ... section (movable), 56 ... section (fixed), 57 ... contact (movable), 58 ... contact (fixed), 60 ... First restricting means, 60a ... restriction wall, 61 ... lock member, 61a ... hole, 61d ... tip of lock member, 61f ... lock member interference part, 71 ... first Two regulating means, 71a ... interference part, 76 ... projection position detection contact, 80 ... control circuit

Claims (5)

In a lid locking device that locks the lid so that the lid cannot be opened and closed when a device having a controller that controls the operation of the device and a device that opens and closes an opening provided in the device body performs a predetermined operation.
The lid lock device includes a lock member that locks the lid, and first and second regulating means that regulate the operation of the lock member,
When the lid is fully opened, the first and second regulating means regulate the operation of the locking member, and when the lid is half open, either the first or second regulating member causes the movement of the locking member. The lid lock device according to claim 1, wherein the lock member is released from the restriction by the first and second restricting means when fully closed. A housing, a washing outer tub disposed inside the housing for storing water, a washing inner tub for washing laundry stored and housed in the washing outer tub, and the laundry being poured into the washing inner tub In an electric washing machine provided with a clothes insertion port, a lid that opens and closes the clothing insertion port, a control circuit that controls a washing process, and a lid locking device that locks the lid so that it cannot be opened and closed,
The lid lock device includes a lock member that locks the lid, and first and second regulating means that regulate the operation of the lock member,
When the lid is fully opened, the first and second regulating means regulate the operation of the locking member, and when the lid is half open, either the first or second regulating member causes the movement of the locking member. The electric washing machine is characterized in that when it is restricted and fully closed, the restriction of the lock member by the first and second restriction means is released.   When the lid is closed from open, the restriction of the lock member by the first restriction means is first released, and when the lid is further closed, the restriction of the lock member by the first and second restriction means is released. The electric washing machine according to claim 2.   When the lid is opened from the closed state, the movement of the locking member is first regulated by the second regulating means, and when the lid is further opened, the movement of the locking member is regulated by the first and second regulating means. The electric washing machine according to claim 2 or 3, wherein the electric washing machine is regulated.   The said 1st and 2nd control means with which the said cover locking device was equipped was made to restrict | limit the movement of the said locking member directly, Both as described in any one of Claim 2 thru | or 4 characterized by the above-mentioned. Electric washing machine.

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