JP4674922B1 - Door lock device - Google Patents

Abstract

[PROBLEMS] To open a door of a washing machine equipped with a conventional door lock device, except for an emergency manual unlocking mechanism operated by a serviceman or the like, only from the outside of the door (tension or door opening button push). It is not possible to operate with a pressing force from inside the washing tub. For example, if a small child is in the washing tub and the door is closed from the outside of the door, the child There was a problem that the door could not be opened by itself from inside the tank.
When a latch 20 provided on a door of a washing machine is pivotally latched by a pivotable latch main body 3, the latch 20 forcibly releases the pivot latch. In such a case, a mechanism (movable locking plate) that allows the movable locking plate 5 that holds the locking body 3 to be locked (contacted and locked. The door lock device is equipped with a heart cam type electromagnetic self-lock mechanism equipped with a force release mechanism of the latching body 3 utilizing the bending of 5).
[Selection] Figure 6

Description

  The present invention is a washing machine having a drum-type washing tub for washing clothes (particularly a model for performing a washing / rinsing step and a dehydrating step in the washing tub, a washing / rinsing step and a dehydrating step in the washing tub) There are also models that perform drying processes, etc.) The so-called electromagnetic self that latches the latch (for example, the hanging metal fitting that always keeps the door open) of the door (washing tub door, washing tub lid). This relates to a door lock device for a washing machine having a lock mechanism (which can alternately perform locking and unlocking operations). Specifically, the door opening / closing operation can be driven with a low operating force (light operating force). In addition, regarding the improvement of the door lock device designed so that the operation of easily opening the door when the self-lock mechanism is unlocked can be performed from the inside or outside of the door, the remaining problem relating to the safety of the washing machine user A technology that solves or improves the door latch or door lock device latch even with the power (for example, 5 kilograms) of a small child (hereinafter referred to as the term “child”) except for an infant under 3 years old. The present invention relates to a door lock device that can open a door even from a washing tub of a washing machine without destroying a latching member or the like, and can ensure the safety of a washing machine user (including the child).

  According to the prior art search, when the operation of closing the door of the washing machine is performed, for example, the movable latch plate moves at the same time as the door latch enters the latch receiver, and when the movable latch plate reaches a certain distance, the movable latch is moved. A technology related to a door lock device based on the principle that the plate enters the latch receiver by the operation of the return spring and the lock of the latch is realized (for example, Patent Document 1, Patent Document 2, Patent Document 3). References) etc. are disclosed. If you need to unlock (unlock) the latch, press the door open button installed in the washing machine housing, the lock hook linked to the door open button pulls the lever on the door lock device, The door can be opened by removing the movable locking plate from the latch receiver by the operation of the lever. In order to operate unlocking (latching release) of the latch of the door lock device, a door opening button device and a link part corresponding thereto are separately installed. The construction is complicated, and once the door opening button device is mechanically broken, the latch of the door lock device cannot be unlocked (unlocked). In the case of a large-capacity washing machine, if the child is in a washing tub (correctly washing and dehydrating tub) and the door is closed from outside the door for some reason, the child There is an emergency situation in which the door cannot be opened by oneself, and there remains a problem of danger in terms of safety.

  In addition, although similar, for example, when opening a door, a technique related to a door lock device capable of removing a lock hook from a lock portion by turning a knob installed on the door (for example, Patent Document 4, Patent Document) 5) etc. are also disclosed. However, even in this technique, in the case of a large-capacity washing machine, if the child is in the washing tub and the door is closed from outside the door for some reason, the child is removed from the washing tub. There is an emergency situation where the door cannot be opened by oneself, and there is still a problem of danger in terms of safety.

Then, for example, when the operation of closing the door of the dryer is performed, the inclined surface of the hook portion having a substantially chess piece shape presses the receiving portion of the lock portion so that the hook is inserted into the receiving portion. A technique (for example, refer to Patent Document 6) related to a door lock device for a dryer that can be fitted into a recess of a hook by the operation of a coil spring and maintain a locked state is also disclosed. When opening the door, by pulling the door directly, the inclined surface in front of the concave portion of the hook presses the receiving portion again, and the door opens. In the door lock device of this structure, when the lock state of the hook is maintained, a stress (internal pressure) for opening the door due to clothing or air pressure (water pressure) is applied between the door and the dryer housing. Applicable when not large. When the stress (internal pressure) is large, there is a drawback that the hook is easily detached from the receiving portion. Therefore, in order to solve the drawback, the spring pressure (elastic urging force) of the coil spring is increased so that the hook does not escape from the stress (internal pressure). However, since the hook comes out of the receiving portion after the receiving portion is pressed by the action of the inclined surface, if the spring pressure of the coil spring is too high, the operating force for inserting and removing the hook is not always constant and tends to be unstable. If used for a long period of time, there is a risk of aging and wear on the sliding part of the hook and receiving part.
However, unlike a drier, since hot water is usually used during operation of a drum-type washing machine, water caused by stress (internal pressure) that tries to open the door due to water pressure or swelling of clothes, etc. In order to prevent leakage, it is required to increase the closing pressure of the door in order to improve the sealing performance between the door and the washing machine casing. Therefore, in the door lock device of the above structure, when the child is in the washing tub and the operation of closing the door from the outside of the door for some reason is performed, for the child that does not have a force exceeding the closing pressure, An emergency situation occurs in which the door cannot be opened by itself from the washing tub, and there is still a danger of safety in terms of safety, so it is not expected to be suitable for mounting in a drum-type washing machine.

China Utility Model Public Notice No. CN201103056Y (Application No. 2007201257731.4) Japanese Patent No. 4038546 JP 2005-137508 A Japanese Patent Laid-Open No. 9-217532 (Chinese Patent Publication No. CN1160103A (Application No. 97101844.8)) Chinese Patent Publication No. CN 1876945A (Application No. 20051001760.7) Chinese Patent Publication No. CN1600968A (Application No. 03144503.9) Japanese Patent No. 3585203

As described above, the structure of the door lock device such as a drum type washing machine according to the prior art has a complicated overall structure (relation between components), and a service person such as a washing machine dealer or a washing machine repair company. Except for the emergency manual unlocking mechanism operated by the machine, when the door is opened during normal use of the washing machine (clothing washing / rinsing process or dehydration or drying process), operation from the outside of the door (tension or The door is open), and the child does not correspond to the operation from the inside of the door by pressing from inside the washing tub, so the child is in the washing tub, for example, a washing machine user or another child If the door is closed from the outside due to a mischief caused by a crime or a crime caused by an intruder in the home or an accident caused by vibration of the washing machine caused by pranks, the door is forcibly opened from the inside of the door. In the children that do not have that power, state of emergency being unable to open the door on their own out of the washing tub occurs, the risk of problems with safety (issues) have been left behind.
In the event of an emergency such as that described above, a service man call (failure repair request) or an operator call (emergency response inquiry) will immediately arrive or reply to a washing machine dealer or a washing machine repair contractor. If there is a door lock device that does not have an emergency manual unlocking mechanism operated by a service person such as a washing machine dealer or a washing machine repair company, and if it is urgent to rescue the child, An adult, such as a machine user, inserts a tool such as a flat-blade screwdriver between the door and the washing machine housing to destroy the door latch or the latch locking member of the door lock device (forced) The child will be forced to open the door and rescue the child. In the state where the door latch or the latch latching member of the door lock device is broken, for example, unintended accident such as hot water in a washing tub or jumping out of clothes due to a situation where the door suddenly opens naturally, etc. Because it is in a state where normal use of the washing machine can not be done safely and safely, until the above-mentioned repairs such as washing machine dealers and washing machine repair companies and parts replacement, etc. are completed, It is also expected that there will be a problem that regular use of washing machines must be avoided.

  The present invention has been made in view of such problems of the prior art, and the object is to operate from the outside of the door of the drum type washing machine (pull or push the door open button), The door can be opened even by an operation (pressing) from inside the washing tub, even if the child is in the washing tub and the door is closed from the outside for some reason. Alternatively, it is an object of the present invention to provide a door lock device for a washing machine that is devised so that the child can open the door by himself / herself from the inside of the washing tub without destroying the latch latch member or the like of the door lock device.

  In order to achieve the above object, in the door lock device of the present invention, in terms of configuration (hardware), a latch (a metal fitting that keeps the door from being opened constantly, may be made of metal or resin. When the door of a washing machine (washing tub door, washing tub lid) having a latch is closed, the latch is closed when the structure, configuration, appearance, etc. of the washing machine are used. A box cover (for example, an integrally formed member of ABS resin) having a latch opening which is an insertion opening, and a latch pin (a heart cam groove provided on the movable operation plate) having a latch receiver which is a space into which the latch enters. Is a member that slides in a step-shaped stepped locking pin guide groove around the heart-shaped protrusion, and the shape is often crank-shaped, which may be made of metal or resin. Resin integral forming member), A solenoid actuator having a rectangular flat plate-shaped movable iron core (for example, a stainless steel flat plate), and a heart cam groove that is driven by the solenoid actuator and can reciprocate in the longitudinal direction of the movable iron core (a heart-shaped protrusion at a substantially central portion of the groove) And a movable operation plate (for example, a POM resin integrally formed member) having a locking pin guide groove provided with a stepped step or the like at several locations around the heart-shaped protrusion, and the latch receiving portion A latch main body (for example, an integrally formed member of POM resin) that pivots from a return position by a latch and latches the latch with a hook (latching claw), and the latch when the hook latches the latch. The movable iron core has a movable locking plate I that can be stopped (abutted and locked and stopped) by the force of a return spring II (for example, a stainless steel wire) so that the stop body does not rotate to the return position. of When a movable locking plate (for example, a POM resin integrally formed member) capable of reciprocating in the lateral short side direction and reciprocating in the longitudinal long side direction of the movable iron core and when the latch is latched by the latching main body The movable member moves in the direction of increasing the force of a return spring I (for example, a stainless steel wire) that always urges the movable locking plate in response to the operation of a door opening button for opening the door provided in the washing machine. An operating shaft (for example, a POM resin integral forming member) capable of moving the locking plate to release the latching state and to release the latch; The heart cam (the distance from the rotating shaft is not constant) that can be alternately locked (locked) and unlocked (unlocked) by engaging and disengaging the heart cam groove and one end of the locking pin. Has a perimeter and rotates around it while others Apparatus providing various motion member. This is a door lock device for a washing machine equipped with a self-locking mechanism.

In details of each component of the door lock device of the present invention, the solenoid actuator includes a solenoid in which a copper wire (eg, enameled wire) is wound around a bobbin (eg, PA resin forming member), and an outer peripheral portion of the solenoid. A provided yoke (for example, a stainless steel flat plate processed into a U shape), a fixed iron core (for example, a stainless steel flat plate) fixed to the yoke, and an engagement hole provided in the solenoid. The movable iron core (also referred to as a plunger or an armature) is reciprocated by performing a suction operation by solenoid excitation (for example, applying a direct current of 100 V to the solenoid) and a return operation by solenoid demagnetization. A mechanism member that
The movable operation plate is a substantially rectangular flat plate, and is connected to the movable iron core to reciprocate in the same longitudinal side direction as the reciprocating direction of the movable iron core. A support shaft having a protrusion that engages with an engagement hole of the movable iron core, and the other end portion (for example, the lower side) in the longitudinal side direction of the movable iron core when the self-locking mechanism is locked (locked). A manual unlocking shaft (for example, a prismatic shape having a notch) that can be forcibly moved to the side is provided, and a suction confirmation converter (generally can be turned on and off) at one end (for example, right) in the lateral short side direction. Micro switch) Protrusion (for example, a prismatic shape having a notch) is provided, the heart cam groove is provided in the substantially central part, and the return spring III is provided either in the lateral direction (left or right) of the heart cam groove. Space that can be installed Is provided at one end of the inner peripheral portion of the square hole III, and a receiving end of the return spring III is provided at the other end of the inner peripheral portion of the square hole III. In order to facilitate the return operation of the movable core at the time of solenoid demagnetization, the return spring III provided at the other end of the box body that also serves as a stopper provided so as to be the end point position at the time of return operation is inserted. A return spring III (for example, a stainless steel wire) composed of a compression coil spring is mounted between the other end receiver of the return spring III and the one end receiver of the return spring III so as to constantly urge and urge both of them. A member provided with a protruding portion (locking claw, for example, a prismatic shape) for locking the reciprocating motion of the movable locking plate in the lateral short side direction of the movable iron core at the other end portion (for example, left) in the direction. Yes,
The latching main body is a substantially cylindrical shaft body, and has pivot shafts on both sides in the axial direction. One of the pivot shafts is provided with a torsion coil spring one end receiving portion, and a torsion coil spring (torsion bar spring, for example). , Stainless steel wire), and a hook (hanging claw, hooked to the end surface of the substantially central portion of the shaft body by rotating the latch from a right angle direction (for example, left rotation, forward path)). (For example, the tip may be tapered to facilitate the insertion of the latch.), And the front part of the latch can be pushed out while being rotated back (for example, clockwise rotation, return path). And a slope that slides with the front end of the movable locking plate and a rotation stopper II that is a surface that makes contact with the front end. Is a member,
The movable locking plate has a front end formed on one end portion of a substantially rectangular flat plate with a surface that makes a stop with the rotation stopper II of the hooking body (contacts and locks and stops rotation). Both sides of the front end A movable locking plate I (for example, a POM resin integral forming member) and a shaft (for example, a POM resin forming member. The movable locking plate I may be integrated with the movable locking plate I. ) And a substantially rectangular flat movable locking plate II (for example, a POM resin integral forming member), the axis of which is the other end of the movable locking plate I and the movable locking plate A protrusion of a button (for example, a POM resin forming member) is slid on the back surface of the front end of the latching main body on the side that does not make contact with the rotation stopper II of the latching body. A movable longitudinal groove is formed, and a protrusion which is a rear wall of the front end is formed. A square hole I, which is a space in which a return spring I (for example, a stainless steel wire) can be mounted, is provided on one end side, and a return spring I one-end support is provided on one end of the inner periphery of the square hole I. A stopper provided at the other end portion of the inner peripheral portion of I so as to be the end point position at the time of return operation of the operation shaft when the operation shaft is pulled back from the box body and returned. A return spring I other end receiver provided on the box lid that also serves as the container is inserted, and between the return spring I other end receiver and the return spring I one end receiver in order to facilitate the return operation of the operation shaft. A return spring I composed of a compression coil spring is mounted so as to constantly urge and bias both, and the other end of the movable locking plate II has a substantially T-shape that slides with the inclined block of the operation shaft. It is a composite member with a stop pin,
The operation shaft is a cylindrical or prismatic shaft with a substantially central portion, and is provided at one end with a tension member engagement hole (through-hole) to which a tension member such as a string, wire or compression coil spring is attached. The other end is in contact with the locking pin of the movable locking plate II, and is provided so that the movable locking plate moves away from the latch receiver by sliding (sliding). The member is provided with a substantially V-shaped inclined block (stopping pin guiding wall), and the inclined block is moved by pulling the pulling member engaging hole away from the box body. It slides with the locking pin of the locking plate II to convert the movement of the movable iron core from the longitudinal long side direction to the lateral short side direction which is a right angle direction, and the movable locking plate moves in a direction to release from the latch receiver. Yes,
The box body is a substantially rectangular box, the solenoid actuator, the movable operation plate, the return spring II (for example, stainless steel wire) having the button, the latch body, and the suction confirmation converter. Is a box that can be placed at a designated location inside the box,
The left side of the box body is provided with a substantially rectangular latch receiving space, and the latch receiving space is provided with a plurality of pivot claws that can pivotally support the pivot shafts on both sides of the latching body. A torsion coil spring other end receiving portion is provided at a position corresponding to the other end of the torsion coil spring mounted on the rotating shaft so that the hook at one end of the substantially central portion of the latching body is on the left side. Storing the latch body;
In the right part of the space of the latch receiver, there are a space for storing the return spring II, and a substantially triangular plate-shaped sliding oblique side portion that is a part of the space for storing the return spring II and is provided on both sides of the front end. A space (for example, a concave square hole) for receiving a slipping oblique side portion having a sliding corner, and a space for storing the return spring II in a return spring II (for example, stainless steel) made of a compression coil spring. A steel wire) and a button that has a protrusion and is a return spring II one-end receiving portion of the return spring II. And a locking claw for preventing the button from popping out externally due to the return force of the return spring II, and attaching the return spring II to the other end of the return spring II, Install the button while locking it to the locking claw for preventing external popping,
A wall that is supported so that the support shaft of the movable operation plate can slide (sliding and reciprocating) is provided in the right portion of the space that houses the return spring II, and the movable operation plate is provided below the wall. A space for storing the movable operation plate, and a space for storing the movable operation plate is provided with a return spring III other end receiver at a position corresponding to the other end of the return spring III mounted on the movable operation plate. The other end receiving portion which is a hole for inserting the other end of the locking pin is provided so that the one end of the substantially crank-shaped round bar-shaped locking pin comes to a position corresponding to the heart cam groove of the plate, The other end receiving portion which is a hole for inserting the other end of the leaf spring so that the one end of the leaf spring (for example, a stainless steel plate) comes to a position where the substantially central portion near the one end of the locking pin is pressed. And attaching the movable operation plate after attaching the other end of the locking pin and the other end of the leaf spring,
A return spring III is mounted between the return spring III one end receiver and the return spring III other end receiver of the movable operation plate,
A space for storing the suction confirmation converter is provided in the right part of the space for storing the movable operation plate, and the switch for the suction confirmation converter is located on the protruding side of the movable operation plate. Install the converter and
A space for accommodating the solenoid actuator is provided in the upper part of the wall supported so that the support shaft of the movable operation plate can slide (sliding and reciprocating), and the movable iron core is inserted into the solenoid actuator. The solenoid actuator is attached by engaging the protrusion of the support shaft of the movable operation plate with the engagement hole of the movable core.
The box cover is a box that can be disposed at a specified location inside the box, with the operation shaft and the movable locking plate being a substantially rectangular box.
On the left part of the box cover, a latch port having a substantially square hole (through hole) is provided so as to correspond to the space position of the latch receiver of the box body,
A space for storing the movable locking plate is provided in the right part of the latch port, and a space for storing the movable locking plate is provided at the other end of the return spring I attached to the movable locking plate II. A return spring I other end receiver is provided at a corresponding position, and a plurality of support grooves for supporting the head of the stop pin of the movable locking plate II are provided.
A wall that is supported so that the shaft at the substantially central portion of the operation shaft can slide (sliding or reciprocating) is provided on the upper or lower portion or both of the support groove for supporting the stop pin of the movable locking plate II. Provide an operation shaft shaft support hole (concave hole, concave notch) on the peripheral wall surface of the box lid in the upper or lower part or both directions of the wall,
The inclined block at the other end of the operating shaft is fixed in contact with the locking pin of the movable locking plate II, and the tension member engaging hole at the one end of the operating shaft is exposed to the outside of the box lid. The operation shaft is attached to the operation shaft shaft support hole of the peripheral wall surface of the box lid, and the movable engagement plate is moved to the support groove so that the movable engagement plate I of the movable engagement plate is on the latch opening side. A stop pin of the stop plate II is inserted, the movable locking plate is attached, and between the return spring I one end receiver and the return spring I other end receiver of the inner periphery of the square hole I of the movable lock plate II. Install the return spring I,
The box body and the box lid are fitted (screwed, welded, etc.) so that the latch receiving space of the box body and the latch opening of the box lid overlap. This is a complete assembly of the door lock device.

In the operation of the door lock device of the present invention during normal use of a washing machine (clothing washing / rinsing step or dehydration or drying step), the self-lock in an initial state before the latch is inserted into the latch receiver In a state called mode 0 when the mechanism is unlocked (unlocked), the hook body is positioned at the return position on the latch port side by the return force of the torsion coil spring,
When the latch is inserted from the latch port when the door is closed, the front portion of the latch enters the latch while pushing the push block, and at the same time, the latching body is also rotated from the return position. The return spring I that the hook enters into the through hole of the latch, and the inclined surface slides with the front end of the movable locking plate I to constantly urge the movable locking plate from the return position. The projection of the button and the longitudinal groove are moved (sliding) while moving (reciprocating movement in the reciprocating direction) in a direction in which the force of the button is increased, and sliding with the front end is caused by the rotation stopper from the inclined surface. When moving to II, the movable locking plate reversely moves in the direction of weakening the force of the return spring I (reciprocating movement of the reciprocating motion), and the rotation stopper II slides (slids) on the front end surface. The movable locking plate returns to the return position when it comes to a stop (contacts and locks, and stops rotating). The main body cannot be rotated and returned, and the latch is hooked by the hook, so that the mode 0 state is changed to a state called mode 1.
Here, when the door opening button for opening the door is operated, the pulling member engaging hole is pulled, and the inclined block and the locking pin of the movable locking plate II slide (slid) to return to each other. The movable locking plate is moved from the return position in the direction in which the force of the spring I is increased (reciprocating movement of the reciprocating movement) to release the stop (contact and lock, rotation stop) state, and the torsion coil By rotating and returning the latching body in the direction in which the latch is released by the return force of the spring, the push block can push up the front part of the latch to release the latch, and the mode 1 state To the mode 0 state from
Then, when the tension member engaging hole that has been pulled is released (returned), the inclined block and the locking pin of the movable locking plate II slide (slid), and the movable locking plate moves to the return spring I. Reversing movement (reciprocating movement back and forth) in a direction to weaken the force, and the movable locking plate stops at the return position,
In the mode 1 state in which the latch is hooked by the hook, the locking pin is used when the movable iron core is suctioned by the solenoid excitation that is performed for the first time after the self-locking mechanism is unlocked (unlocked). One end of the sliding member slides (slids) in the heart cam groove and moves (forwards) from the return position to the locked (locked) position, and at the same time, the protruding portion of the movable operation plate moves to the movable locking plate I. The movable locking plate is locked (locked) by moving to the protruding portion of the movable plate (locking), and the latching main body is held in a state in which it cannot rotate and the protruding portion of the movable operating plate is used for the suction confirmation. By pressing the switch button on the converter, you can notify the change of the operation state from unlocking (locking) to locking (locking) of the self-locking mechanism,
Next, at the time of the return operation of the movable core by the solenoid demagnetization performed by the notification of the change, the self-locking mechanism is locked (locked) by the engagement between the heart cam groove and one end of the locking pin, The reciprocation of the operation shaft is suppressed and the latch is latched and held, and the mode 1 is shifted to a state called mode 2.
When the movable iron core is attracted by the solenoid excitation, which is performed for the first time after the self-locking mechanism is locked (locked) in the mode 2 state, the self-locking mechanism is unlocked by the separation of the heart cam groove and the locking pin. Locked (unlocked)
At the time of the return operation of the movable core by the solenoid demagnetization performed immediately thereafter, the return position from the position where one end of the locking pin slides (slids) in the heart cam groove and is locked (locked). At the same time, the protruding portion of the movable operation plate moves (returns) from the protruding portion of the movable locking plate I, and the locking (locking) of the movable locking plate is released (unlocked). The operation shaft can be reciprocated, and the projecting portion of the movable operation plate is separated from the switch button of the suction confirmation converter from the lock (lock) to the unlock (lock release) of the self-locking mechanism. Can be notified of the change of the operation state, and the mode 2 state is shifted to the mode 1 state.
Here, if the door opening button for opening the door is operated, the latch can be released and the mode 1 state can be shifted to the mode 0 state as described above.

  In the operation of the door lock device of the present invention in the event of an emergency (when the child is in the washing tub and for some reason the door is closed from the outside for some reason) Even if the door open button for opening is not operated, in the state where the latch that is in the mode 1 state is latched and held, the latch is forcibly pushed by pulling or pushing from the inside of the washing tub. When the latch body is pulled away from the box body (forced release), the latching body is forcibly rotated in the direction of the return position (rotation return) while the inner peripheral surface of the through hole of the latch is in contact with the hook. At the same time, the rotation stopper II rotates and presses the front end, so that the vertical groove on the back surface of the front end is rotated while the movable locking plate I rotates from the return position around the axis. Do not slide by sliding the button. Then, the front end is rotated and moved in the direction in which the force of the return spring II is increased (the forward path), and the sliding oblique side portion slides (slids) on the corner of the sliding oblique side support. When entering the space of the slant side portion and the rotation stopper II is removed from the surface of the front end, the front end of the movable locking plate I slides (slids) on the inclined surface, and the movable locking plate I The latch of the latch can be forcibly released by rotating (returning) to the return position while sliding (sliding) the projection of the button and the longitudinal groove with the force of the return spring II. The mode 1 state can be shifted to the mode 0 state.

  Furthermore, in the details of some of the components of the door lock device of the present invention, a substantially square plate-like shape having a surface in the same direction as the rotation stopper II on either of the rotating shafts on both sides of the latching body. A rotation stopper III is provided, and the other end of the movable operation plate in the lateral short side direction (for example, the left side) is disposed at a position facing the side surface of the rotation stopper III. A rotation stopper IV having a substantially square bar shape is provided at a position where the side surface of the rotation stopper III does not come into contact with the rotation.

In the operation of the door lock device of the present invention in this case, in the mode 0 state, for example, malfunction (for example, electrical component failure in the electrical circuit of the washing machine controller due to electromagnetic noise, overheating, component failure, component failure, etc.) Or because of control program (software) such as control microcomputer runaway (failure such as control failure, abnormal operation, response stop, hang-up), or check whether the mode is in the mode 0 of the washing machine control system. Therefore, even if the suction operation of the movable iron core is started by the solenoid excitation that is performed for the first time after the self-lock mechanism is unlocked (unlocked), the rotation stopper IV is placed on the side surface of the rotation stopper III. It is stopped and the movement of the movable operation plate is suppressed, and the mode 0 state can be maintained.
Further, in the mode 1 state, if there is a suction operation of the movable iron core by the solenoid excitation that is performed for the first time after the self-lock mechanism is unlocked (unlocked), the rotation stopper IV is moved by the movement of the movable operation plate. Sinks into the surface of the rotation stopper III, suppresses rotation return of the latching main body, and maintains the mode 1 state.

  Let the latch provided on the door of the washing machine be hooked with a hook body that has a hook (holding claw) that can be hooked while rotating, and the latch forcibly releases the rotation latch. In this case, the hook using the bending (rotation movement) of the movable locking plate is used so that the hook is not overstressed and the breakage can be reduced and the hook body can be rotated and returned. Since the forced release mechanism of the stop body is adopted, the door can be opened by either an operation from outside the door of the washing machine (pulling or pushing the door open button) or an operation from the washing tub (pressing). Even if the child is in the washing tub and the door is closed from the outside for some reason, the child does not break the door latch or the latch locking member of the door lock device. Open the door by yourself from the tank Bets can be an effect that the safety of the washing machine user (the children including.) Can be secured.

It is a plane outline figure which has omitted the figure of the latch in mode 1 state of the door lock device of one example of the present invention. It is a plane outline figure which has omitted the figure of a latch in the mode 1 state at the time of removing the box cover of the door lock device of Example 1 of the principle of the present invention. It is AA sectional drawing when the plane outline figure of Drawing 2 in mode 0 state is seen from the front. It is AA sectional drawing when the plane outline figure of Drawing 2 when changing from mode 0 state to mode 1 state is seen from the front. It is AA sectional drawing when the plane outline figure of Drawing 2 in mode 1 state is seen from the front. It is AA sectional drawing when the plane outline figure of Drawing 2 when changing from mode 1 state to mode 0 state is seen from the front. It is an expansion appearance perspective view of the upper part front of the latching main part of the door lock device of one example of the present invention. It is an expansion appearance perspective view of the upper part front of movable locking plate I of the door lock device of one example of the present invention. It is a plane outline figure which has omitted the figure of a latch and some components in the mode 1 state at the time of removing the box cover of the door lock device of one example of the present invention. It is BB sectional drawing when the plane external view of FIG. 9 in the mode 1 state is seen from the front. It is an expansion appearance perspective view of the upper part front of the movable locking plate (assembly of movable locking plate I, movable locking plate II, and a shaft) of the door lock device of one example of the present invention. It is a plane outline figure which has omitted the figure of a latch and some components in the mode 1 state at the time of removing the box cover of the door lock device of one example of the present invention. It is an external appearance perspective view of the upper part front showing the relation between the latching main part of the door lock device of one example of the present invention, a movable locking plate, and an operation axis. It is a plane outline figure which has omitted the figure of a latch in the mode 1 state at the time of removing the box cover of the door lock device of one example of the present invention. It is CC sectional drawing when the planar external view of FIG. 14 in the mode 1 state is seen from the front. It is a plane external view which has abbreviate | omitted the figure of a movable operation board and a latch in the mode 2 state at the time of removing the box cover body of the door lock apparatus of Example 4 of the principle of this invention. It is the expansion appearance perspective view seen from the bottom side showing the relation between the movable locking plate and movable operation plate of the door lock device of one example of the present invention. FIG. 18 is an enlarged view showing a heart cam groove of a heart cam of the movable operation plate of FIG. It is a partial longitudinal cross-sectional view which shows the depth relationship of the groove | channel along the order of the label | marker shown in the heart cam groove of the heart cam of the movable operation board of the enlarged view of FIG.

  Either from the outside of the washing machine door (pull or push the door open button) or from inside the washing tub (pressing), the door can be opened and the child is in the washing tub. Thus, even if an operation of closing the door from the outside of the door is performed, the child can open the door by himself from the washing tub, and the safety of the washing machine user (including the child) can be ensured. For this purpose, the latch provided on the door of the washing machine is latched by a latch body having a hook (latching claw) that can be latched while rotating, and the latch is forcibly latched. If the hook is to be released, the movable locking plate is bent (rotated) so that the hook is not overstressed and damage can be reduced and the hook body can be rotated and returned. Adopting the forced release mechanism of the used latch body Only, even in the washing machine main body side without any particular also additional components, it was achieved without compromising the compact (slim) property.

First, the state of the engagement between the latch 20 of the door of the washing machine and the latching body 3 of the door lock device according to the embodiment of the present invention will be described using the word “mode”. Define the state.
The mode 0 state is an initial state before the latch 20 is inserted into the door lock device, and the latch body 3 is ready to receive the latch 20. In the self-locking mechanism that makes the movement unrecoverable state, it is in an unlocked (unlocked) state.
The mode 1 state is a state in which the latch 20 is inserted into the door lock device and is latched by the latch main body 3, and in the self-lock mechanism that makes the latch main body 3 unrotatable. Is still unlocked (unlocked).
The mode 2 state is a state in which the latch 20 is inserted into the door lock device and is latched by the latch body 3, and in the self-lock mechanism that makes the latch body 3 unrotatable. Is a locked state.

A main configuration (hardware) of a door lock device according to an embodiment of the present invention will be described.
The door lock device according to one embodiment of the present invention has a latch 20 (the outer shape, dimensions, material, and the like vary depending on the specifications of the washing machine to which the door lock device according to one embodiment of the present invention is mounted). When the door (a washing tub door body, a washing tub lid body. The outer shape, dimensions, material, etc. of the door differs depending on the specifications of the manufacturer's washing machine), the latch 20 has a latch opening 201 as an insertion opening. A box body 2, a box body 1 having a latch pin 101 that is a space into which the latch 20 enters and having a locking pin 13, a solenoid actuator 9 having a substantially rectangular flat plate-shaped movable iron core 10, and the solenoid The return position is driven by the movable operation plate 11 which is driven by the actuator 9 and can reciprocate in the longitudinal direction of the movable iron core 10 and has a heart cam groove 1101 and the latch 20 which has entered the latch receiver 101. And the latch main body 3 that latches the latch 20 with a hook 302 (latching claw), and the latch main body 3 rotates to the return position when the hook 302 latches the latch 20. The movable locking plate I504 has a movable locking plate I504 that can be stopped (abutted and locked and locked) by the force of the return spring II7 so that the movable core 10 can reciprocate in the lateral short side direction. 5 and a door opening button (position and outline) for reciprocating in the longitudinal direction of the movable iron core 10 and for opening the door provided in the washing machine when the latch 20 is hooked on the hook body 3. The dimensions and material of the movable locking plate 5 differ depending on the specifications of the washing machine of the manufacturer.) The movable locking plate 5 in the direction of increasing the force of the return spring I6 that always urges and urges the movable locking plate 5 in conjunction with the operation. To release the latch (contact and lock, rotation stop) and release the latch 20 And an operating shaft 18 capable of rotating the latching main body 3 in the direction, that is, the return position.

Regarding a method of locking (locking) and unlocking (unlocking) a self-locking mechanism of a door lock device according to an embodiment of the present invention, an electromagnetic self-locking mechanism that has been widely used for door lock devices in general ( For example, refer to Patent Document 7). That is, the door lock device according to the present invention is configured to guide the locking pin 13 provided with the heart cam groove 1101 (having a heart-shaped protrusion 1105 at a substantially central portion of the groove and several stepped steps around the heart-shaped protrusion 1105. ) And one end portion 1301 of the locking pin 13 (the heart cam groove 1101 provided on the movable operation plate 11, more specifically, sliding on the guide groove of the locking pin 13 at the stepped step around the heart-shaped protrusion 1105 (sliding). The shape of the member is generally crank-shaped. It may be made of metal or resin.) Locking (locking) and unlocking (unlocking) operations by engagement and disengagement are alternately performed. This is a door lock device for a washing machine equipped with a self-locking mechanism of a heart cam type that can be performed.
In the external view of the heart cam groove 1101, it is preferable to refer to FIGS. FIG. 17 is an enlarged external perspective view showing the relationship between the movable locking plate 5 and the movable operation plate 11 of the door lock device of one embodiment of the present invention, and FIG. 18 is a movable perspective view of FIG. FIG. 19 is an enlarged view showing the heart cam groove 1101 of the heart cam of the operation plate 11, and is a view with signs (▲ A) to (H)) indicating the movement of the locking pin 13, and FIG. 19 is an enlarged view of FIG. 18. In the order of the signs (▲ A ▼ to ▲ H ▼) shown in the heart cam groove 1101 of the heart cam of the movable operation plate 11 (the locking pin 13 moves from ▲ A ▼ to ▲ H ▼, and from ▲ H ▼ to ▲ It is a partial longitudinal cross-sectional view which shows the depth relationship of the groove | channel along the order which returns to (A).
In this application, although the external view of the locking pin 13 and the leaf | plate spring 1304 which presses this locking pin 13 and a component related figure are abbreviate | omitted, it describes in FIG.4 (b) of drawing of patent document 1. FIG. Reference numeral 26 (locking pin) is equivalent to the locking pin 13 of the present application, and reference numeral 27 (plate spring) is equivalent to the leaf spring 1304 of the present application. Also, the lower side of the member 26 (locking pin) and the member 27 (leaf spring) indicated by the same reference numeral 26 in FIG. 4B represents the other end, respectively. The other end of the member (locking pin) shown in (b) enters the other end receiving portion 1302 (through hole) of the locking pin of the box body 1 of the present application, and the same reference numeral 27 in FIG. The other end portion of the member (leaf spring) shown in b) enters the other end portion receiving portion 1303 (through hole) of the leaf spring of the box body 1 of the present application.

The detail of each component of the door lock apparatus of one Example of this invention is demonstrated.
The solenoid actuator 9 is a U-shaped solenoid formed by winding a copper wire (for example, enameled wire) around a bobbin (for example, PA resin forming member) and a yoke (for example, a stainless steel flat plate) provided on the outer periphery of the solenoid. ), A fixed iron core (for example, a stainless steel flat plate) fixed to the yoke, and the movable iron core 10 (for example, a stainless steel flat plate) provided in the solenoid and having an engagement hole. The movable iron core 10 (also referred to as a plunger or an armature) is a mechanism member that reciprocates by being attracted by solenoid excitation (for example, applying a direct current of 100 V to the solenoid) and restored by solenoid demagnetization. .
In the present application, the external view of the solenoid actuator 9 and the component-related drawings are omitted. However, the configuration is the same as that described in FIG. good.

The movable operation plate 11 is a substantially rectangular flat plate made of, for example, a POM resin forming member, and is connected to the movable iron core 10 and reciprocates in the same longitudinal side direction as the reciprocating direction of the movable iron core 10. One end portion (for example, the upper side) of the direction has a support shaft 1106 having a protrusion that engages with the engagement hole of the movable iron core 10, and the other end portion (for example, the lower side) in the longitudinal side direction locks the self-locking mechanism. A manual unlock shaft 1104 (for example, a prismatic shape having a notch) capable of forcibly moving the movable iron core 10 toward the solenoid actuator 9 at the time of (locking) is provided, and one end portion (for example, a lateral short side direction) On the right side, a protrusion 1103 (for example, a prism having a notch) that pushes the switch button 1401 of the suction confirmation converter 14 (generally, a micro switch that can be turned on and off is often employed). And a square hole III 1108 that is a space in which the return spring III 12 can be mounted in either of the lateral directions (left and right) of the heart cam groove 1101. One end of a return spring III 12 is provided at one end portion of the inner peripheral portion of the hole III 1108, and the end point position at the time of return operation of the movable iron core 10 at the time of solenoid demagnetization is provided at the other end portion of the inner peripheral portion of the square hole III 1108. The return spring III 12 provided at the other end of the box body 1 that also serves as a stopper provided so as to receive the other end is inserted, and the return spring is configured to facilitate the return operation of the movable iron core 10 when the solenoid is demagnetized. A return spring III 12 (for example, a stainless steel wire) composed of a compression coil spring is mounted between the other end of the III 12 and the return spring III 12 at one end so as to always urge and urge both ends. Other direction A member (for example, left) is provided with a protrusion 1102 (locking claw, for example, a prismatic shape) that locks the reciprocating motion of the movable locking plate 5 in the lateral short side direction of the movable iron core 10. .
Refer to FIG. 17 for an external view of the movable operation plate 11 and component related views. FIG. 17 is an enlarged external perspective view showing the relationship between the movable locking plate 5 and the movable operation plate 11 of the door lock device according to the embodiment of the present invention as seen from the bottom surface side.

The latch body 3 is, for example, a substantially cylindrical shaft body made of a POM resin forming member, and has pivot shafts 305 on both sides in the axial direction. One of the pivot shafts 305 has a torsion coil spring one end receiving portion 303. And a torsion coil spring 4 (a torsion bar spring, for example, a stainless steel wire wound) is mounted, and the latch 20 is rotated from a right angle direction on one end surface of the substantially central portion of the shaft body ( For example, the hook 302 (hanging claw, hooking projection. For example, the tip may be tapered to facilitate the insertion of the latch) and the latch 20 are latched by rotating counterclockwise. And a push block 301 that can be pushed out while rotating back (for example, rotating rightward and returning), and a front end 502 of the movable locking plate 5 is provided on the other end face of the outer peripheral portion of the substantially central portion of the shaft body. And the front end 502 A rotation stopper II304 is a surface 衝止 a member formed by providing a.
Refer to FIG. 7 for an external view of the latch body 3. FIG. 7 is an enlarged external perspective view of the upper front of the latching body 3 of the door lock device according to the embodiment of the present invention.
FIG. 13 may be referred to in the component related diagram of the latching main body 3 and the movable locking plate 5. FIG. 13 is an external perspective view of the top front showing the relationship among the latching body 3, the movable locking plate 5, and the operation shaft 18 of the door lock device according to the embodiment of the present invention.

The movable locking plate 5 has a front end 502 formed on one end portion of a substantially rectangular flat plate with a surface that stops (contacts and locks and stops rotation) with the rotation stopper II 304 of the latching main body 3. A movable locking plate I504 (for example, a POM resin integral forming member) having a substantially triangular plate-like sliding oblique side portion 503 provided on both sides of the front end 502 and a shaft 506 (for example, a POM resin forming member, a movable locking plate). And a movable locking plate II505 having a substantially rectangular flat plate (for example, an integrally formed member of POM resin).
The shaft 506 is rotatably coupled to the other end of the movable locking plate I504 and one end of the movable locking plate II505, so that the shaft 506 does not make a stop with the rotation stopper II304 of the latching body 3. On the back surface of the front end 502, a vertical groove 510 in which a protrusion of the button 8 (for example, a POM resin forming member) can slide is formed, and a protrusion 507 which is a rear wall of the front end 502 is formed. In addition, a square hole I509, which is a space in which a return spring I6 (for example, one wound with a stainless steel wire) can be mounted, is provided on one end side of the movable locking plate II505, and one end of the inner peripheral portion of the square hole I509 is provided. A return spring I6 one-end support is provided in the portion, and when the operation shaft 18 is pulled back from the box body 1 at the other end portion of the inner peripheral portion of the square hole I509 and stopped, the operation shaft 18 Provided to be the end point position at 18 return operation A return spring I6 other end receiver provided on the box cover 2 that also serves as a stopper is inserted, and the other end of the return spring I6 and the return spring I6 are provided to facilitate the return operation of the operation shaft 18. A return spring I6 made of a compression coil spring is mounted between the one end receiver and the both ends so as to always urge and urge both, and an inclined block 1801 of the operation shaft 18 is provided on the other end side of the movable locking plate II505. This is a composite member provided with a substantially T-shaped retaining pin 508 that slides.
For an external view of the movable locking plate I504, FIG. 8 may be referred to. FIG. 8 is an enlarged external perspective view of the upper front of the movable locking plate I504 of the door lock device according to the embodiment of the present invention.
In the external view of the movable locking plate 5, reference should be made to FIG. FIG. 11 is an enlarged external perspective view of the upper front of the movable locking plate 5 (an assembly of the movable locking plate I504, the movable locking plate II505, and the shaft 506) of the door lock device according to the embodiment of the present invention. .
FIG. 13 may be referred to in the component related diagram of the movable locking plate 5 and the operation shaft 18. FIG. 13 is an external perspective view of the top front showing the relationship among the latching body 3, the movable locking plate 5, and the operation shaft 18 of the door lock device according to the embodiment of the present invention.

The operation shaft 18 is, for example, a cylindrical or prismatic shaft having a substantially central portion made of a POM resin forming member. One end of the operation shaft 18 is disposed outside the box body 1 and is a tension member for a string, a wire, or a compression coil spring. Is provided with a tension member engaging hole 1802 (through hole), and the other end is in contact with the stop pin 508 of the movable locking plate II 505 so that the movable locking plate 5 is slid (slided). This is a member provided with a substantially V-shaped inclined block 1801 (guide wall of the stop pin 508) provided so as to move in a direction away from the latch receiver 101.
By performing an operation of pulling the tension member engagement hole 1802 away from the box body 1, the inclined block 1801 slides with the set pin 508 of the movable locking plate II 505, and the longitudinal long side of the movable iron core 10. The movable locking plate 5 is moved in a direction away from the latch receiver 101 by converting the movement into a lateral short side direction which is a perpendicular direction from the direction.
For an external view of the operation shaft 18 and a component-related view of the movable locking plate 5 and the operation shaft 18, FIG. FIG. 13 is an external perspective view of the top front showing the relationship among the latching body 3, the movable locking plate 5, and the operation shaft 18 of the door lock device according to the embodiment of the present invention.

The box body 1 is, for example, a substantially rectangular box made of an ABS resin forming member, the solenoid actuator 9, the movable operation plate 11, a return spring II7 having a button 8, the latch body 3, The suction confirmation converter 14 is a box that can be disposed at a designated location inside the box.
Refer to FIG. 14 for the arrangement and the like of each component housed in the box body of the box body 1. FIG. 14 is a plan outline view in which the latch 20 is omitted in the mode 1 state when the box cover 2 of the door lock device according to the embodiment of the present invention is removed.
Refer to FIG. 15 for the return spring II 7 having the button 8. 15 is a cross-sectional view taken along the line C-C when the plan view of FIG. 14 in the mode 1 state is viewed from the front.
A substantially square-shaped space for the latch receiver 101 is provided on the left side of the box body 1, and a shaft support claw that can support the pivot shaft 305 on both sides of the latch body 3 is provided in the space of the latch receiver 101. A plurality of torsion coil spring other end receiving portions 102 are provided at positions corresponding to the other end portions of the torsion coil springs 4 attached to one of the rotating shafts 305, and one end of a substantially central portion of the latching main body 3 is provided. The latching main body 3 is stored so that the hook 302 of the part is on the left side.
On the right side of the space of the latch receiver 101, there are a space 103 for accommodating the return spring II7 and a part of the space 103 for accommodating the return spring II7, which is a substantially triangular plate-like slide provided on both sides of the front end 502. A space (for example, a concave square hole) of the sliding oblique side receiver 104 having a corner that slides with the joint slope 503 is provided, and the space 103 that accommodates the return spring II7 is made of a compression coil spring. A return spring II7 (for example, a wire wound with a stainless steel wire) and a button 8 having a protrusion and serving as a return spring II7 one end receiving portion of the return spring II7 are housed, and below the button 8 A projection-like return spring II7 other end receiving portion 1031 for restricting the moving distance, and a locking claw for preventing the button 8 from jumping out by the return force of the return spring II7 are provided on the upper part, and the return spring II7 The return spring II7 is attached to the other end receiving portion 1031. Attached while locking the said button 8 in its upper portion engaging pawl of said external protruding prevented.
A wall that is supported so that the support shaft 1106 of the movable operation plate 11 can slide (sliding and reciprocating) is provided on the right side of the space 103 that houses the return spring II7. A space for accommodating the movable operation plate 11 is provided, and in the space for accommodating the movable operation plate 11, the return spring III 12 and the like are located at a position corresponding to the other end of the return spring III 12 attached to the movable operation plate 11. An end support is provided, and the other end portion of the locking pin 13 is inserted so that the one end portion 1301 of the substantially crank-shaped round bar-shaped locking pin 13 comes to a position corresponding to the heart cam groove 1101 of the movable operation plate 11. The other end receiving portion 1302 that is a hole (which may be a through-hole or a concave hole) is provided, and a leaf spring 1304 (for example, a position where the substantially central portion near the one end portion 1301 of the locking pin 13 is pressed. A stainless steel flat plate bent and punched. ) Is provided with the other end receiving portion 1303 which is a hole (a through hole or a concave hole) into which the other end of the leaf spring 1304 is inserted. Are attached to the other end of the leaf spring 1304 and the other end of the leaf spring 1304.
A return spring III 12 is mounted between one end receiver of the return spring III 12 and the other end receiver of the return spring III 12 of the movable operation plate 11.
A space for storing the suction confirmation converter 14 is provided in the right part of the space for storing the movable operation plate 11, and the switch button 1401 of the suction confirmation converter 14 is provided on the protruding portion 1103 side of the movable operation plate 11. Attach the suction confirmation converter 14 so that it comes out.
A space for accommodating the solenoid actuator 9 is provided in the upper part of the wall supported so that the support shaft 1106 of the movable operation plate 11 can slide (sliding and reciprocating). The movable iron core 10 is inserted, the projection of the support shaft 1106 of the movable operation plate 11 is engaged with the engagement hole of the movable iron core 10, and the solenoid actuator 9 is attached.
For the external view of the other end receiving portion 1302 of the locking pin 13 and the other end receiving portion 1303 of the leaf spring 1304, reference should be made to FIG. FIG. 12 shows the latch 20 and some components (solenoid actuator 9, movable operation plate 11, suction confirmation) in the mode 1 state when the box cover 2 of the door lock device of the embodiment of the present invention is removed. FIG. 6 is a plan outline view omitting a diagram of the converter 14).

The box lid 2 is, for example, a substantially rectangular box made of an ABS resin forming member, and the box that can be provided with the operation shaft 18 and the movable locking plate 5 at a specified location inside the box. It is.
For an external view of the box lid 2, refer to FIG. FIG. 1 is a plan view of the latch 20 in the mode 1 state of the door lock device according to the embodiment of the present invention, in which the illustration of the latch 20 is omitted.
The arrangement of each component housed in the box body of the box body lid 2 is omitted.
A latch port 201 having a substantially rectangular hole (through hole) is provided on the left side of the box body 2 so as to correspond to the spatial position of the latch receiver 101 of the box body 1.
A space for storing the movable locking plate 5 is provided in the right part of the latch port 201, and a space for storing the movable locking plate 5 is provided with the return spring I6 attached to the movable locking plate II 505. The other end of the return spring I6 is provided at a position corresponding to the other end, and a plurality of support grooves 202 (two in one embodiment of the present invention) for supporting the head of the stop pin 508 of the movable locking plate II505 are provided.
A shaft at a substantially central portion of the operating shaft 18 is supported so as to be slidable (sliding or reciprocating) on the upper portion, the lower portion or both of the bearing groove 202 that supports the stop pin 508 of the movable locking plate II 505. An operation shaft shaft support hole (concave hole, concave notch) is provided on the peripheral wall surface of the box lid body 2 in the upper part, lower part or both directions of the wall.
An inclined block 1801 at the other end of the operating shaft 18 is attached in contact with a locking pin 508 of the movable locking plate II 505, and a tension member engaging hole 1802 at one end of the operating shaft 18 is attached to the box cover. The operation shaft 18 is attached to the operation shaft shaft support hole on the peripheral wall surface of the box lid body 2 so as to come out of the body 2, and the movable locking plate I 504 of the movable locking plate 5 is located on the latch port 201 side. In this manner, the retaining pin 508 of the movable locking plate II 505 is inserted into the support groove 202, the movable locking plate 5 is attached, and the return spring I 6 at the inner periphery of the square hole I 509 of the movable locking plate II 505. A return spring I6 is mounted between the one end receiver and the return spring I6 other end receiver.

The operation shaft support hole of the operation shaft 18 provided on the peripheral wall surface of the box cover 2 may be provided in the box body 1. Moreover, you may provide in both this box body cover 2 and this box body 1.
Finally, the box body 1 and the box lid 2 are fitted (screwed) so that the space of the latch receiver 101 of the box body 1 and the latch opening 201 of the box lid 2 overlap. It is also possible to use welding or the like.
In the component related diagram of the box body 1 and the box lid body 2, reference should be made to FIG. FIG. 1 is a plan view of the latch 20 in the mode 1 state of the door lock device according to the embodiment of the present invention, in which the illustration of the latch 20 is omitted.

The main operation (software) of the door lock device of one embodiment of the present invention will be described.
First, an outline of the operation of the heart cam type self-locking mechanism will be described with reference to FIGS.
When the self-locking mechanism is in the initial unlocked (unlocked) state, the one end portion 1301 of the locking pin 13 is ▲ A ▼ of the heart cam groove 1101 (A is indicated in a circle in the drawing). The same shall apply hereinafter)).
When the movable iron core 10 is attracted (reciprocating forward movement) by the solenoid excitation (for example, DC 100V is applied to the solenoid) that is performed for the first time after the unlocking (unlocking), the locking pin 13 One end portion 1301 of the heart cam groove 1101 moves relative to the inside of the heart cam groove 1101 from the position {circle around (A)} and moves to {circle around (B)}, {circle around (C)}, {circle around (D)}, {circle around (E)}.
Therefore, when the one end portion 1301 of the locking pin 13 comes to the position of the concave portion of the heart-shaped protrusion 1105 (▲ E ▼), there is a notification of conversion from the suction confirmation converter 14, which is implemented by the notification of the conversion. When the movable iron core 10 is restored by the solenoid demagnetization (power failure) (reciprocating movement of the reciprocating motion), the one end 1301 of the locking pin 13 is locked at the position of the recess (▲ E ▼) of the heart-shaped protrusion 1105 ( The position can be maintained.
When the movable iron core 10 is attracted by the solenoid excitation performed for the first time from the time of locking (locking), the one end portion 1301 of the locking pin 13 is positioned at the concave portion of the heart-shaped protrusion 1105 (▲ E ▼). And move from (E) to (F).
At the time of the return operation of the movable iron core 10 due to the solenoid demagnetization performed immediately after that, the one end portion 1301 of the locking pin 13 moves to ▲ G ▼ and ▲ H ▼, returns to the position ▲ A ▼, and then again unscrews. It will be in the locked (unlocked) state.

Next, details of the operation of each component of the door lock device of one embodiment of the present invention during normal use of the washing machine (clothing washing / rinsing process or dehydration or drying process) will be described.
In a state called mode 0 when the self-locking mechanism is unlocked (unlocked) in an initial state before the latch 20 is inserted into the latch receiver 101, the latching body 3 is connected to the torsion coil spring 4. The hook 302 is positioned at the return position on the latch port 201 side by the return force. (Not shown in the state diagram of the mode 0 state.)
When the latch 20 is inserted from the latch opening 201 when the door is closed, the front portion 2002 of the latch 20 enters the latch receiver 101 while pushing the push block 301.
(Since the component-related diagram between the latch 20 and the push block 301 is not shown, the component-related diagram between the latch 20 and the push block 301 in FIG. 3 may be referred to as a reference.)
At the same time, the latching body 3 is also rotated from the return position (for example, counterclockwise rotation, forward path), and the hook 302 enters the through hole 2001 (may be a concave hole) of the latch 20, and The inclined surface 306 slides with the front end 502 of the movable locking plate I504 to project the projection of the button 8 in a direction to increase the force of the return spring I6 that constantly urges and urges the movable locking plate 5 from the return position. And the vertical groove 510 move while sliding (sliding) (reciprocating movement), and sliding (sliding) with the front end 502 shifts from the inclined surface 306 to the rotation stopper II 304. The movable locking plate 5 reversely moves in a direction to weaken the force of the return spring I6 (reciprocating movement in the reciprocating motion), and the rotation stopper II 304 slides (slids) on the surface of the front end 502 to make a stop. (Abutting and locking. Rotation stopped.) The movable locking plate 5 is restored. Returning to the return position, the latch main body 3 cannot rotate and return, and the latch 20 is latched by the hook 302, so that the mode 0 state is shifted to a state called mode 1.
In the state diagram of mode 1 (component related diagram of the latch 20 and the push block 301), it is preferable to refer to FIG. 10 or FIG. 10 is a cross-sectional view taken along the line BB when the plan view of FIG. 9 in the mode 1 state is viewed from the front, and FIG. 15 is a plan view of the plan view of FIG. 14 in the mode 1 state when viewed from the front. It is CC sectional drawing.

Here, when a door opening button (not shown) for opening the door is operated, the tension member engagement hole 1802 is pulled, and the inclined block 1801 and the stop pin 508 of the movable locking plate II 505 slide. Then, the movable locking plate 5 is moved from the return position in the direction in which the force of the return spring I6 is increased (reciprocating movement is moved forward) to release the above-mentioned stop (contact and lock, rotation stop) state. Then, the retaining block 3 is returned to the direction in which the latch 20 is released by the restoring force of the torsion coil spring 4 (for example, clockwise rotation, return path), whereby the push block 301 is moved to the latch 20. The front portion 2002 can be pushed up to disengage the latch 20, and the mode 1 state is shifted to the mode 0 state.
When the tension member engagement hole 1802 that has been pulled is released (returned), the inclined block 1801 and the locking pin 508 of the movable locking plate II 505 slide, and the movable locking plate 5 moves to the return spring. It reversely moves in a direction to weaken the force of I6 (reciprocating movement of the reciprocating motion), and the movable locking plate 5 stops at the return position.

  In the mode 1 state where the latch 20 is hooked by the hook 302, when the movable iron core 10 is suctioned by the solenoid excitation, which is performed for the first time after the self-locking mechanism is unlocked (unlocked), One end 1301 of the locking pin 13 slides (slids) in the heart cam groove 1101 and moves (forward) from the return position to the locked (locked) position, and at the same time, the protruding portion of the movable operation plate 11 1102 moves (outward) to the protrusion 507 of the movable locking plate I504, the movable locking plate 5 is locked (locked), and the latching main body 3 enters a holding state in which the rotation cannot be restored. The protrusion 1103 of the movable operation plate 11 presses the switch button 1401 of the suction confirmation converter 14 to notify the change of the operation state from the unlocking (locking release) to the locking (locking) of the self-locking mechanism. It can be.

  Next, at the time of the return operation of the movable iron core 10 by the solenoid demagnetization performed by the notification of the change, the self-locking mechanism is locked (locked) by the engagement between the heart cam groove 1101 and the one end portion 1301 of the lock pin 13. ), The reciprocating motion of the operating shaft 18 is suppressed and the latch 20 is latched and held, and the mode 1 state is shifted to a state called mode 2.

During the suction operation of the movable iron core 10 by the solenoid excitation, which is performed for the first time after the self-locking mechanism is locked (locked) in the mode 2 state, the heart cam groove 1101 and the one end portion 1301 of the lock pin 13 The self-locking mechanism is unlocked (unlocked) by releasing.
At the time of the return operation of the movable core 10 by the solenoid demagnetization performed immediately after that, the one end portion 1301 of the locking pin 13 slides (slids) in the heart cam groove 1101 and is locked (locked). At the same time, the protrusion 1102 of the movable operation plate 11 moves (returns) from the protrusion 507 of the movable locking plate I 504 to lock (lock) the movable locking plate 5. ) Is released (unlocked), allowing the operation shaft 18 to reciprocate, and the projecting portion 1103 of the movable operation plate (11) moves away from the switch button 1401 of the suction confirmation converter 14 to self-lock mechanism. The change of the operation state from the lock (locking) to the unlocking (locking release) can be notified, and the mode 2 state is shifted to the mode 1 state.

  Here, if the door opening button for opening the door is operated, the latch 20 can be released and the mode 1 state can be shifted to the mode 0 state as described above.

Next, details of the operation of each component of the door lock device according to the embodiment of the present invention during an emergency will be described.
The emergency mentioned here means that, for example, a small child other than an infant under 3 years old is in a washing tub (correctly washing and dehydrating tub), for example, a mischief by a washing machine user or other children Or the case where the door itself performed the operation which closes a door by the cause of the crime etc. by the crime of a trespasser, etc., or the vibration of the washing machine by a prank etc. is said.
Even in such an emergency situation, the direction in which the door is opened in the state in which the latch 20 in the mode 1 state is latched and held without operating the door opening button for opening the door. When the latch 20 is forcibly pulled away from the box body 1 by being pulled or pushed from the inside of the washing tub (forced release), the inner peripheral surface of the through-hole 2001 of the latch 20 becomes the hook 302. The latching main body 3 is forcibly rotated (returned) in the direction of the return position while abutting with the rotation stopper, and at the same time, the rotation stopper II 304 is rotated and presses the front end 502. While the movable locking plate I504 rotates from the return position, the longitudinal groove 510 on the back surface of the front end 502 pushes the button 8 and slides (slids) on the front end 502 to apply the force of the return spring II7. Rotating movement in the direction to strengthen ( The sliding oblique side portion 503 enters the space of the sliding oblique side portion 104 while sliding (sliding) on the corner portion of the sliding oblique side portion 104, and the rotation stopper II 304 is moved to the front end. When it comes off the surface of 502, the front end 502 of the movable locking plate I504 slides (slids) on the inclined surface 306, and the movable locking plate I504 is moved by the force of the return spring II7. The latch 20 can be forcibly released from the mode 1 state to the mode 0 by rotating (returning) to the return position while the protrusion and the vertical groove 510 slide (slid). The state can be changed.
(The component related diagram of the latch 20, the hook 302, and the movable locking plate I504 is not shown. For reference, the component related diagram of the latch 20, the hook 302, and the movable locking plate I504 is referred to. Good.)

Furthermore, the detail of the one part component of the door lock apparatus of one Example of this invention is demonstrated.
Although not shown, a substantially square plate-like rotation stopper III 307 having a surface in the same direction as the rotation stopper II 304 is provided on either of the rotating shafts 305 on both sides of the latching main body 3, and the movable operation plate The other end portion (for example, the left side) in the lateral short side direction of 11 is disposed so as to face the side surface of the rotation stopper III 307, and the rotation is performed even when the latching main body 3 is rotated. A rotation stopper IV1107 having a substantially square bar shape is provided at a position where the side surface of the stopper III 307 does not contact.

In the operation of the door lock device according to the embodiment of the present invention in this case, in the mode 0 state, for example, malfunction (for example, in the electric circuit of the washing machine control unit due to electromagnetic noise, overheating, component failure, component failure, etc.) Due to an electrical component failure or malfunction of a control program (software) such as a control microcomputer (control failure, abnormal operation, response stop, hang-up, etc.) or in the mode 0 state of the washing machine control system intentionally Even if the suction operation of the movable iron core 10 is started by the solenoid excitation that is performed for the first time from the time when the self-locking mechanism is unlocked (unlocked), the rotation stopper IV1107 is rotated. The movement of the movable operation plate 11 is restrained by the side surface of the stopper III 307 and the mode 0 state can be maintained.
Thus, even if an unintended accident occurs like the malfunction, the safety of the washing machine user (including the child) can be secured.

In the mode 1 state, if there is a suction operation of the movable iron core 10 by the solenoid excitation that is performed for the first time from the time when the self-locking mechanism is unlocked (unlocked), the movable operation plate 11 rotates due to the movement. The stopper IV 1107 can sink into the surface of the rotation stopper III 307 to suppress the rotation return (forced rotation) of the latching main body 3 and maintain the mode 1 state.
Thus, during normal use of the washing machine (clothing washing / rinsing process or dehydration or drying process), for example, water in the washing tub or jumping out of clothes due to a situation where the door suddenly opens naturally It is possible to prevent accidents that are not intended, and to ensure the safety of the washing machine user (including the child).

  Here, the principle (development history) of the present invention leading to the development of the door lock device of one embodiment of the present invention will be described.

First, a part of the main components of the door lock device according to the embodiment of the present invention will be described by partially quoting.
As a first embodiment of the principle of the present invention, the box body 1, the box body 2, the latch body 3, the movable locking plate I504, and the movable latch plate I504 are supported in one piece. The return spring IV61 (for example, a wound stainless steel wire) consisting of a compression coil spring that constantly urges and urges the bullet in the direction 3 and the movable locking plate I504 are always bulleted in the direction of the box lid 2. A description will be given of a door lock device constituted by the return spring II7 that is energized.
FIG. 2 may be referred to in the external view and the component related diagram of the door lock device according to the first embodiment of the principle of the present invention. FIG. 2 is a plan view of the latch 20 omitted in the mode 1 state when the box cover 2 of the door lock device according to the first embodiment of the present invention is removed.

FIG. 3 is a cross-sectional view taken along line AA when the plan view of FIG. 2 in the mode 0 state is viewed from the front.
As shown in FIG. 3, when the door of the washing machine is closed, the latch 20 is inserted into the latch receiver 101, and the front portion 2002 of the latch 20 pushes the push block 301.

4 is a cross-sectional view taken along the line AA in FIG. 2 when viewed from the front when the mode 0 state is shifted to the mode 1 state, and FIG. 5 is a plan view of FIG. 2 in the mode 1 state. It is AA sectional drawing when a figure is seen from the front.
As shown in FIG. 4, when the latch 20 further enters the latch receiver 101, the front portion 2002 of the latch 20 pushes the push block 301, so that the latching body 3 rotates from the return position. Then, the hook 302 enters the through-hole 2001 of the latch 20, and the inclined surface 306 slides (slids) on the front end 502 of the movable locking plate I 504, and the movable locking plate I 504. Is moved (sliding forward) in a direction to increase the force of the return spring IV61 that constantly urges and urges bullets from the return position.
When sliding (sliding) with the front end 502 shifts from the inclined surface 306 to the rotation stopper II 304, the movable locking plate I 504 reversely moves in a direction to weaken the force of the return spring IV 61 as shown in FIG. (Reciprocating return), the rotation stopper II 304 slides (slids) on the surface of the front end 502 to come into an abutment (abutment and lock, rotation stop) state, and the movable locking plate I504. Returns to the return position, and the latch main body 3 cannot rotate and return, and the latch 20 is latched by the hook 302 to shift from the mode 0 state to the mode 1.

6 is a cross-sectional view taken along the line AA when the plan view of FIG. 2 when viewed from the mode 1 state to the mode 0 state is viewed from the front.
As shown in FIG. 6, if the latch 20 is forcedly pulled away from the box body 1 in the state where the latch 20 in the mode 1 state is latched and held, the through-hole of the latch 20 The latching body 3 is forcibly rotated in the direction of the return position while the inner peripheral surface of 2001 is in contact with the hook 302.
At the same time, the rotation stopper II 304 rotates and presses the front end 502, so that the movable locking plate I504, which is supported by the return spring IV61, is in the downward direction and rotates from the return position while rotating the front end 502. Rotates in the direction of increasing the force of the return spring II7 (reciprocating forward path), and the sliding oblique side 503 slides (slids) on the corner of the sliding inclined side support 104 while sliding (sliding). When the rotation stopper II 304 is disengaged from the surface of the front end 502 after entering the space of the sliding slant side support 104, the front end 502 of the movable locking plate I504 comes to slide with the slope 306, and the movable locking plate The plate I504 can be forcibly released from the latch 20 by rotating to the return position by the force of the return spring II7 (reciprocation of the reciprocating motion), and shifts from the mode 1 state to the mode 0 state. In the state shown in FIG. Return.
However, although depending on the spring force of the return spring IV61, it is expected that the movable locking plate I504 is unstable and does not move horizontally when it is supported by the return spring IV61.

As a second embodiment of the principle of the present invention, a box body 1, a box body 2, a latch body 3, a movable locking plate I504 (movable locking plate 5), and a movable locking plate I504 are provided. A description will be given of a door lock device constituted by a return spring II7 having the button 8 that constantly urges and energizes in the direction of the box body lid 2.
For an external view and component related view of the door lock device according to the second embodiment of the principle of the present invention, FIG. 9 may be referred to. FIG. 9 shows the latch 20 and several components (solenoid actuator 9, movable operation plate 11, suction confirmation) in the mode 1 state when the box cover 2 of the door lock device of the embodiment of the present invention is removed. It is a plane outline figure which has omitted the figure of converter 14 and operation axis 18).

10 is a cross-sectional view taken along the line B-B when the plan view of FIG. 9 in the mode 1 state is viewed from the front.
As shown in FIG. 10, since the movable locking plate I504 does not wear directly with the return spring II7 when moving to the left to the right, a button 8 is provided between the return spring II7 and the movable locking plate I504. Was provided. Further, in order to improve the unstable movement of the movable locking plate I504, the movable locking plate I504 and the movable locking plate II505 are combined with a shaft 506, and the return spring I6 is attached to the movable locking plate I504. It was provided between the box cover 2 and the movable locking plate II505.
And even when there is sliding (sliding) between the inclined surface 306 of the latching main body 3 and the front end 502 of the movable locking plate I504, the movable locking plate 5 can be kept horizontal. .
However, even though the door can be opened by pulling directly with a knob or the like, there remains a problem that the door cannot be opened by operating a door opening button for opening the door.

As a third embodiment of the principle of the present invention, a door lock device constituted by a box body 1, a box lid 2, a hook body 3, a movable locking plate 5, and an operation shaft 18 will be described. To do.
For an external view and component related view of the door lock device according to the third embodiment of the principle of the present invention, FIG. 12 may be referred to. FIG. 12 shows the latch 20 and some components (solenoid actuator 9, movable operation plate 11, suction confirmation) in the mode 1 state when the box cover 2 of the door lock device of the embodiment of the present invention is removed. FIG. 6 is a plan outline view omitting a diagram of the converter 14).

FIG. 13 is an external perspective view of the top front showing the relationship among the latching body 3, the movable locking plate 5, and the operation shaft 18 of the door lock device according to the embodiment of the present invention.
Although details are as described above, the tension member engagement holes 1802 provided in the operation shaft 18 may be provided only on one side of one end of the shaft, or on both sides of one end and the other end of the shaft. It may be provided. In the case where the tension member engagement holes 1802 are provided on both sides, the substantially V-shaped inclined block 1801 is provided in the substantially central portion.
Further, the operation shaft 18 provided with the tension member engagement hole 1802 only on one side of one end of the shaft may be attached in the direction shown in FIG. 12, or the tension member engagement hole 1802 may be reversed so that the lower portion of FIG. You may attach so that it may come.
As a result, the door can be opened either from the outside of the door (pulling or pushing the door opening button) or from the inside of the washing tub (pressing), and the child is in the washing tub. Therefore, even if an operation for closing the door from the outside of the door is performed for some reason, the child can open the door by himself / herself from the washing tub, and the washing machine user (including the child) is safe. There is an effect that the sex can be secured.

As a fourth embodiment of the principle of the present invention, a self-locking mechanism is provided so that manual locking can be released at any time in order to ensure safety when the self-locking mechanism of the door lock device of one embodiment of the present invention is locked. The door lock device in which the manual lock release plate 15 is provided on the locking pin 13 will be described.
FIG. 16 may be referred to in the external view and the component related diagram of the door lock device according to the fourth embodiment of the principle of the present invention. FIG. 16 is a plan view of the movable operation plate 11 and the latch 20 omitted in the mode 2 state when the box cover 2 of the door lock device according to the fourth embodiment of the principle of the present invention is removed. is there.

The manual unlocking plate 15 is, for example, a substantially rectangular flat plate made of a POM resin forming member. One end of the manual unlocking plate 15 is disposed outside the box body 1 and is attached with a tension member such as a string, a wire, or a compression coil spring. A member engagement hole (through-hole) is provided, and a return spring IV16 (for example, a stainless steel wire wound around) made of a compression coil spring provided in a substantially central part for facilitating the return operation is accommodated. This is a member provided with a square hole II 1501 (for pulling the locking pin) for forcibly pulling the locking pin 13.
As shown in FIG. 16, the manual lock release plate 15 is placed in the manual lock release plate storage space provided in the box body 1 so that the square hole II1501 is positioned above the one end portion 1301 of the locking pin 13. And the manual unlocking string 17 is coupled to the tension member engaging hole at one end of the manual unlocking plate 15.
In this case, after the manual unlocking plate 15 is attached to the box body 1, the suction confirmation converter 14 is attached.
For manual unlocking by means of a tension member such as a string, normally, in order to prevent mischief, in the washing machine casing, no one other than a service person such as a washing machine dealer or a washing machine repairman can operate. Often provided.

  As mentioned above, although various combinations etc. were described about the preferred embodiment of this invention, this invention is not limited to embodiment mentioned above, Many combinations and modification | change are within the range which does not deviate from the mind of invention. Of course, etc. can be given.

For example, the manual unlocking shaft 1104 provided on the movable operation plate 11 is modified so as to protrude from the box body 1, and when the self-locking mechanism is locked (locked), the manual unlocking shaft 1104 is By pushing into the box body 1, the movable iron core 10 can be manually moved to the solenoid actuator 9 side (reciprocating path) without depending on the solenoid-excited mechanical operation. By shifting from the locked (locked) state to the unlocked (unlocked) state, the mode 1 state can be returned to the mode 0 state.
In order to prevent mischief, manual unlocking is usually provided in the washing machine casing so that no one other than a service person such as a washing machine dealer or a washing machine repairer can operate. In a highly urgent emergency situation, a gap is provided between the door and the washing machine casing so that the washing machine user can operate the machine, and the manual unlocking shaft 1104 can be pushed through the gap. There are many washing machines. In that case, the manual unlocking method is often described in the instruction manual (manual, document) of the purchased washing machine so that the washing machine user can search for the operation method.
As described above, in order to ensure safety when locking (locking) the self-locking mechanism of the door lock device of one embodiment of the present invention, a plurality of safety holding mechanisms are provided by the manufacturer so that the manual lock can be released at any time. It can be added depending on washing machine specifications and safety concerns.

  The present invention can be applied not only to a washing machine for washing clothes, but also to a food washing machine for washing grains such as potatoes and vegetables, a dishwasher for washing dishes, and the like.

1 ... Box body 101 ... Latch receiver (space)
102 ... Torsion coil spring other end receiving portion 103 ... Return spring II storage space 1031 ... Return spring II other end receiving portion 104 ... Sliding side receiving portion with a corner 105 ... Projection portion 2 ... Box body 201 ... Latch port 202 ... Support groove (Multiple grooves for supporting the head of the locking pin)
3 ... Hook body 301 ... Push block 302 ... Hook (Hook)
303 ... Torsion coil spring one end receiving part (rotation stopper I)
304 ... Rotation stopper II
305 ... Rotating shaft 306 ... Slope 307 ... Rotation stopper III
DESCRIPTION OF SYMBOLS 4 ... Torsion coil spring 5 ... Movable locking plate 502 ... Front end which has a surface and a back surface 503 ... Sliding slant side part 504 ... Movable locking plate I
505 ... Movable locking plate II
506 ... Shaft 507 ... Projection (rear wall at front end)
508 ... Stopping pin 509 ... Square hole I (Return spring I storage part)
6 ... Return spring I
7 ... Return spring II
DESCRIPTION OF SYMBOLS 8 ... Button 9 ... Solenoid actuator 10 ... Movable iron core 11 ... Movable operation plate 1101 ... Heart cam groove 1102 ... Projection part 1103 ... Projection part (Converter switch button for suction confirmation) Press)
DESCRIPTION OF SYMBOLS 1104 ... Manual unlocking shaft 1105 ... Heart-shaped protrusion 1106 ... Support shaft having protrusion 1107 ... Rotation stopper IV
1108 ... Square hole III (Return spring III storage part)
12 ... Return spring III
13... Locking pin 1301... One end of the locking pin (the portion that slides in the heart cam groove)
1302... Other end receiving portion (through hole) of locking pin
1303... Other end receiving portion (through hole) of leaf spring
1304... Leaf spring (for locking pin pressing)
14 ... Converter for confirmation of suction (micro switch)
1401 ... Switch button 15 ... Manual lock release plate 1501 ... Square hole II (for locking pin tension)
16 ... Return spring IV
17 ... Manual unlocking string 18 ... Operating shaft 1801 ... Inclined block 1802 ... Tensing member engagement hole 20 ... Latch (installed in the door of the washing machine)
2001 ... through hole 2002 ... front part 61 ... return spring IV (used in principle)

Claims (2)

When the door of the washing machine having the latch (20) is closed, the box lid (2) having the latch port (201) as an insertion port of the latch (20) and the space into which the latch (20) enters. A box body (1) having a latch receiver (101) and a locking pin (13), a solenoid actuator (9) having a substantially rectangular flat plate-shaped movable iron core (10), and the solenoid actuator (9) The movable operating plate (11) having a heart cam groove (1101) that can be driven to reciprocate in the longitudinal direction of the movable iron core (10) and the latch (20) that has entered the latch receiver (101) return position. The latch main body (3) that pivots from the hook and latches the latch (20) with the hook (302), and the latch main body (3) when the hook (302) latches the latch (20). ) Does not rotate to the return position A movable locking plate (5) having a movable locking plate I (504) which can be stopped by the force of the return spring II (7) and capable of reciprocating in the lateral short side direction of the movable iron core (10), Operation of the door opening button for opening the door provided in the washing machine when the movable iron core (10) can reciprocate in the longitudinal direction and the latch (20) is hooked on the latching main body (3). The movable locking plate (5) is moved in a direction to increase the force of the return spring I (6) that always urges and urges the movable locking plate (5) in conjunction with the And an operating shaft (18) capable of rotating the latching body (3) in a direction to release the latch (20), that is, a return position, and the heart cam groove (1101) and the locking pin (13). A heart cam type cell that can be alternately locked and unlocked by engaging and disengaging with one end (1301) of the A door lock device for a washing machine equipped with a luff lock mechanism,
The solenoid actuator (9) includes a solenoid in which a copper wire is wound around a bobbin, a yoke provided on the outer periphery of the solenoid, a fixed iron core fixed to the yoke, and an engagement hole provided in the solenoid. The movable iron core (10), the movable iron core (10) is a mechanism member that reciprocates by performing a suction operation by solenoid excitation and a return operation by solenoid demagnetization,
The movable operation plate (11) is a substantially rectangular flat body, and is connected to the movable iron core (10) to reciprocate in the same longitudinal side direction as the reciprocating direction of the movable iron core (10). One end portion has a support shaft (1106) having a projection that engages with the engagement hole of the movable iron core (10), and the other end portion (for example, the lower side) in the longitudinal side direction is locked when the self-locking mechanism is locked. A manual unlocking shaft (1104) capable of forcibly moving the movable iron core (10) to the solenoid actuator (9) side is provided, and a switch for a suction confirmation converter (14) is provided at one end in the lateral short side direction. A protrusion (1103) for pressing the button (1401) is provided, the heart cam groove (1101) is provided in the substantially central portion, and the return spring III (12) is provided in either of the lateral directions (left and right) of the heart cam groove (1101). Is a space that can be installed (1108), a return spring III (12) is provided at one end of the inner periphery of the square hole III (1108), and the solenoid is provided at the other end of the inner periphery of the square hole III (1108). A return spring III (12) provided at the other end of the box body (1), which also serves as a stopper provided to be an end point position at the time of return operation of the movable core (10) at the time of demagnetization, In order to facilitate the return operation of the movable iron core (10) at the time of solenoid demagnetization, the spring is always urged between the return spring III (12) and the return spring III (12) one end receiver. A return spring III (12) comprising a compression coil spring is mounted so that the movable locking plate (5) in the lateral short side direction of the movable iron core (10) is reciprocated at the other end in the lateral short side direction. It is a member provided with a protrusion (1102) (locking claw) that locks movement,
The latching main body (3) is a substantially cylindrical shaft body, and has rotating shafts (305) on both sides in the axial direction. One rotating shaft (305) has a torsion coil spring one end receiving portion (303). And a torsion coil spring (4) is mounted, and a hook (302) that pivots and latches the latch (20) from a right angle direction on one end face of the substantially central portion of the shaft body, and the latch A push block (301) that can be pushed out while rotating the front portion (2002) of (20), and the front end of the movable locking plate (5) 502) and a slope (306) that slides, and a rotation stopper II (304) that is a surface that makes contact with the front end (502),
The movable locking plate (5) has a front end (502) in which a surface that makes contact with the rotation stopper II (304) of the latching body (3) is formed at one end of a substantially rectangular flat plate. ), A movable locking plate I (504) having a substantially triangular plate-like sliding oblique side portion (503) provided on both sides, a shaft (506), a movable locking plate II (505) having a substantially rectangular flat plate, The shaft (506) rotatably connects the other end of the movable locking plate I (504) and one end of the movable locking plate II (505), A vertical groove (510) is formed on the back surface of the front end (502) on the side of the latch body (3) that does not make contact with the rotation stopper II (304), and the protrusion of the button (8) can slide. Further, a protrusion (507) which is a rear wall of the front end (502) is formed, and one end side of the movable locking plate II (505) is formed. Is provided with a square hole I (509) which is a space in which the return spring I (6) can be mounted, and one end of the return spring I (6) is provided at one end of the inner periphery of the square hole I (509). When the operation of pulling the operating shaft (18) away from the box body (1) is stopped at the other end of the inner periphery of the square hole I (509) and returned, the operating shaft (18) is returned. A return spring I (6) other end receiver provided in the box lid (2), which also serves as a stopper provided so as to be the end point position at the time of operation, enters, and the return operation of the operation shaft (18) is performed. For the sake of simplicity, the return spring I (6) is composed of a compression coil spring so that the return spring I (6) and the other end of the return spring I (6) are both elastically urged. And the other end of the movable locking plate II (505) slides with the inclined block (1801) of the operating shaft (18). A composite member formed by providing stop pin (508) of substantially T-shaped that,
The operation shaft (18) is a shaft having a substantially central portion of a cylinder or a prism, and one end portion is disposed outside the box body (1) and is attached with a tension member such as a string, a wire, or a compression coil spring. A member engagement hole (1802) is provided, and the other end is in contact with the stop pin (508) of the movable locking plate II (505), and the movable locking plate (5) is latched by sliding. (101) is a member provided with a substantially V-shaped inclined block (1801) provided so as to move in the direction of detachment, and the tension member engagement hole (1802) is connected to the box body (1). By performing an operation of pulling away, the inclined block (1801) slides with the set pin (508) of the movable locking plate II (505) and is perpendicular to the longitudinal side direction of the movable iron core (10). The movable locking plate (5) is converted into a movement in the direction of a short side. Moving in a direction of detachment from the latch receiver (101),
The box body (1) is a substantially rectangular box, the solenoid actuator (9), the movable operation plate (11), a return spring II (7) having a button (8), and the latching body. (3) and a suction confirmation converter (14), which is a box that can be disposed at a designated location inside the box,
On the left side of the box body (1), a space for the latch receiver (101) having a substantially square shape is provided, and in the space of the latch receiver (101), the pivot shafts on both sides of the latch body (3) ( 305) is provided with a plurality of shaft support claws, and a torsion coil spring other end receiving portion (102) is provided at a position corresponding to the other end portion of the torsion coil spring (4) mounted on one of the rotating shafts (305). ) And the latching body (3) is stored so that the hook (302) at one end of the substantially central portion of the latching body (3) is on the left side.
In the right part of the space of the latch receiver (101), there is a space (103) for storing the return spring II (7) and a part of the space (103) for storing the return spring II (7), and the front end And a space for the slipping hypotenuse part (104) having a corner to slide with the substantially triangular plate slipping hypotenuse part (503) provided on both sides of the (502), and the return spring II (7) The space (103) for storing the return spring II (7) made of a compression coil spring and a button (8) having a protrusion and serving as one end receiving portion of the return spring II (7) of the return spring II (7). ) And a protrusion-like return spring II (7), the other end receiving portion (1031) for restricting the downward movement distance of the button (8), and a return of the return spring II (7) in the upper part. A locking claw for preventing the button (8) from protruding to the outside by force, and the return spring II (7) at the other end receiving portion (1031) Mounting a spring II (7), mounted with locks the button (8) on top the engaging claw of the outer protruding prevention,
A wall that is supported so that the support shaft (1106) of the movable operation plate (11) can slide is provided in the right part of the space (103) that houses the return spring II (7), and a lower part thereof is provided. A space for accommodating the movable operation plate (11) is provided, and the other end of the return spring III (12) attached to the movable operation plate (11) is provided in the space for accommodating the movable operation plate (11). A return spring III (12) is provided at the position corresponding to the other end, and one end of the locking pin (13) having a substantially crank-shaped round bar shape at a position corresponding to the heart cam groove (1101) of the movable operation plate (11). The other end receiving portion (1302) which is a hole for inserting the other end portion of the locking pin (13) is provided so that the portion (1301) comes, and one end portion (1301) of the locking pin (13) is provided. The leaf spring (13) so that one end of the leaf spring (1304) comes to a position where the substantially central portion of the side is pressed. 04) is provided with the other end receiving portion (1303) which is a hole for inserting the other end, and the other end of the locking pin (13) and the other end of the leaf spring (1304) are attached. The movable operation plate (11) is attached from
A return spring III (12) is mounted between the return spring III (12) one end receiver and the return spring III (12) other end receiver of the movable operation plate (11),
In the right part of the space for accommodating the movable operation plate (11), a space for accommodating the suction confirmation converter (14) is provided, and for the suction confirmation on the protruding portion (1103) side of the movable operation plate (11). Install the suction confirmation converter (14) so that the switch button (1401) of the converter (14) comes.
A space for accommodating the solenoid actuator (9) is provided in an upper portion of the wall supported so that the support shaft (1106) of the movable operation plate (11) can slide, and the solenoid actuator (9) is provided in the space. The movable iron core (10) was inserted, the projection of the support shaft (1106) of the movable operation plate (11) was engaged with the engagement hole of the movable iron core (10), and the solenoid actuator (9) was attached. Is,
The box body lid (2) is a box having a substantially rectangular shape, and the operation shaft (18) and the movable locking plate (5) can be disposed at a designated location inside the box. ,
A latch port (201) having a substantially rectangular hole is provided on the left side of the box body lid (2) so as to correspond to the spatial position of the latch receiver (101) of the box body (1).
A space for accommodating the movable locking plate (5) is provided in the right part of the latch port (201), and the movable locking plate II (505) is provided in a space for storing the movable locking plate (5). A return spring I (6) other end receiver is provided at a position corresponding to the other end of the return spring I (6) attached to the head, and a head of the stop pin (508) of the movable locking plate II (505) is provided. Provide a support groove (202) to support,
The shaft at the substantially central portion of the operation shaft (18) can slide on the upper portion, the lower portion or both of the support groove (202) for supporting the stop pin (508) of the movable locking plate II (505). A wall to be supported is provided, and an operation shaft shaft support hole is provided on the peripheral wall surface of the box lid (2) in the upper or lower part or both directions of the wall,
The inclined block (1801) at the other end of the operating shaft (18) is attached in contact with the locking pin (508) of the movable locking plate II (505), and is attached to one end of the operating shaft (18). The operation shaft (18) is attached to the operation shaft support hole of the peripheral wall surface of the box body lid (2) so that the tension member engagement hole (1802) protrudes outside the box body lid (2). A retaining pin (of the movable locking plate II (505) is inserted into the support groove (202) so that the movable locking plate I (504) of the movable locking plate (5) is on the latch port (201) side. 508) is inserted, the movable locking plate (5) is attached, the return spring I (6) one end receiver and the return spring of the inner periphery of the square hole I (509) of the movable locking plate II (505) I (6) Mount the return spring I (6) between the other end receiver,
The box body (1) and the box body cover (1) so that the space of the latch receiver (101) of the box body (1) and the latch port (201) of the box body cover (2) overlap. 2) to complete the assembly of the door lock device,
In operation, in the state called mode 0 when the self-locking mechanism is unlocked in the initial state before the latch (20) is inserted into the latch receiver (101), the latching body (3) The hook (302) is positioned at the return position on the latch port (201) side by the return force of the coil spring (4),
When the latch (20) is inserted from the latch opening (201) when the door is closed, the front part (2002) of the latch (20) pushes the push block (301) and the latch receiver (101). At the same time, the latching body (3) also rotates from the return position so that the hook (302) enters the through hole (2001) of the latch (20), and the inclined surface (306) Is a direction in which the force of the return spring I (6) is slid with the front end (502) of the movable locking plate I (504) to constantly urge the movable locking plate (5) from the return position. The projection of the button (8) and the longitudinal groove (510) are moved while sliding, and the sliding with the front end (502) is caused by the rotation stopper II (304) from the inclined surface (306). The movable locking plate (5) weakens the force of the return spring I (6). The rotation stopper II (304) slides on the surface of the front end (502) to be in a locked state, and the movable locking plate (5) returns to the return position, and the latching body (3 ) Becomes impossible to return to rotation, the latch (20) is hooked by the hook (302), and the mode 0 state is shifted to a state called mode 1,
Here, when the door opening button for opening the door is operated, the tension member engaging hole (1802) is pulled, and the inclined block (1801) and the locking pin (508) of the movable locking plate II (505) are pulled. ) And the movable locking plate (5) is moved from the return position in a direction to increase the force of the return spring I (6) to release the stop state, and the torsion coil spring (4) The pushing block (301) pushes up the front part (2002) of the latch (20) by rotating and returning the latching body (3) in the direction in which the latch (20) is released with the restoring force of. The latch (20) can be disengaged and transitioned from the mode 1 state to the mode 0 state;
Then, when the tension member engaging hole (1802) that has been pulled is released, the inclined block (1801) and the locking pin (508) of the movable locking plate II (505) slide to move the movable locking plate. The plate (5) reversely moves in a direction to weaken the force of the return spring I (6), and the movable locking plate (5) stops at the return position,
In the mode 1 state in which the latch (20) is hooked by the hook (302), when the movable iron core (10) is suctioned by the solenoid excitation performed for the first time after the self-locking mechanism is unlocked, One end portion (1301) of the locking pin (13) slides in the heart cam groove (1101) and moves from the return position to the locked position, and at the same time, the protruding portion (1102) of the movable operation plate (11). ) Moves to the projecting portion (507) of the movable locking plate I (504), the movable locking plate (5) is locked, and the latching body (3) is held in a state where it cannot be rotated and returned. The protruding portion (1103) of the movable operation plate (11) pushes the switch button (1401) of the suction confirmation converter (14) to notify the change of the operation state from the unlocking state to the locking state of the self-locking mechanism. Can
Next, at the time of the return operation of the movable iron core (10) by the solenoid demagnetization performed by the notification of the change, the engagement between the heart cam groove (1101) and one end (1301) of the locking pin (13) The self-locking mechanism is locked, the reciprocation of the operating shaft (18) is suppressed, the latch (20) is latched and held, and the mode 1 state is shifted to a state called mode 2.
When the movable iron core (10) is suctioned by the solenoid excitation that is performed for the first time after the self-locking mechanism is locked in the mode 2 state, the heart cam groove (1101) and one end of the locking pin (13) The self-locking mechanism is unlocked by detaching from (1301),
At the time of the return operation of the movable iron core (10) by the solenoid demagnetization performed immediately after that, one end portion (1301) of the locking pin (13) is slid and locked in the heart cam groove (1101). At the same time, the projecting portion (1102) of the movable operation plate (11) moves from the projecting portion (507) of the movable locking plate I (504) to move the movable locking plate (5). Is unlocked, allowing the operation shaft (18) to reciprocate, and the projecting portion (1103) of the movable operation plate (11) from the switch button (1401) of the suction confirmation converter (14). The switch of the operation state from locking to unlocking of the self-locking mechanism can be informed away, and the mode 2 state is shifted to the mode 1 state,
Here, if the door opening button for opening the door is operated, as described above, the latch (20) is released, and the door lock for the washing machine can be shifted from the mode 1 state to the mode 0 state. In the device
Even if the door opening button for opening the door is not operated, in the state where the latch (20) which is in the mode 1 state is latched and held, the door is pulled or pushed from the inside of the washing tub. When the latch (20) is forcibly pulled away from the box body (1), the inner peripheral surface of the through hole (2001) of the latch (20) is in contact with the hook (302). The latching body (3) is forcibly rotated in the direction of the return position, and at the same time, the rotation stopper II (304) is rotated and presses the front end (502), so that the axis (506) is the center. While the movable locking plate I (504) rotates from the return position, the longitudinal groove (510) on the back surface of the front end (502) pushes the button (8) and slides the front end (502). Rotate and move in the direction to increase the force of the return spring II (7), Further, the sliding oblique side portion (503) slides (slids) on the corner portion of the sliding oblique side portion receiver (104) and enters the space of the sliding oblique side portion receiver (104), and the rotation stopper II ( When 304) is disengaged from the surface of the front end (502), the front end (502) of the movable locking plate I (504) comes to slide with the inclined surface (306), and the movable locking plate I (504). ) By the force of the return spring II (7), the projection of the button (8) and the longitudinal groove (510) are slidably moved to the return position to slide the latch (20). A door lock device characterized in that the lock can be forcibly released and the mode 1 state can be shifted to the mode 0 state. 2. The door lock device according to claim 1, wherein a substantially square plate-like shape having a surface in the same direction as the rotation stopper II (304) on one of the rotation shafts (305) on both sides of the latching body (3). A rotation stopper III (307) is provided, and the movable operation plate (11) is disposed at a position opposite to the side surface of the rotation stopper III (307) on the other end (for example, the left side) in the lateral short side direction. In addition, a substantially square bar-shaped rotation stopper IV (1107) is provided at a position where the side surface of the rotation stopper III (307) does not contact even when the latching main body (3) rotates.
In the mode 0 state, for example, the solenoid excitation that is performed for the first time after the self-locking mechanism is unlocked in order to check whether the mode is in the mode 0 state due to malfunction or the control system of the washing machine. Even if the movable iron core (10) is started to be sucked by the rotation stopper IV (1107), the rotation stopper IV (1107) is stopped by the side surface of the rotation stopper III (307) to suppress the movement of the movable operation plate (11). The mode 0 state can be maintained,
In the mode 1 state, if there is a suction operation of the movable iron core (10) by the solenoid excitation performed for the first time after the self-locking mechanism is unlocked, the rotation stopper is moved by the movement of the movable operation plate (11). The IV (1107) can sink into the surface of the rotation stopper III (307), suppress the rotation return of the latching body (3), and maintain the mode 1 state. Door lock device.

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