JP5816783B2 - Washing machine door switch device - Google Patents

Description

  The present invention relates to a door switch device for a washing machine provided with a door that can be freely opened and closed.

  The door switch device of the conventional drum type washing machine is configured as shown in FIG. 6, FIG. 7, FIG. 8, and FIG. The configuration will be described below.

  As shown in FIGS. 6 and 7, the door 1 is provided with an opening of the device main body 2 so that it can be opened and closed, and a hook 3 is mounted so as to be movable in the direction of arrow A via the door opening and closing lever 4. The door 1 can be locked in a closed state by a door switch 5 provided in the main body 2.

  The door switch 5 is configured as shown in FIGS. 8 and 9, and the sliding member 6 is movable in the horizontal direction by a spring 7, and the hook 3 of the door 1 is engaged when the door 1 is closed. Slide to move. The operation member 8 is rotated by the movement of the sliding member 6, and the switch means 9 is connected to a load such as a solenoid (drive means) 10 and a motor 11. The motor 11 rotates the drum 12. A holding means 13 is connected to the solenoid 10, and a part of the holding means 13 is engaged with a part of the sliding member 6, and the sliding member 6 is locked to lock the door 1 in the closed state.

  The locking means 14 locks the position of the holding means 13 and holds the door 1 in a locked state or unlocked state. The locking means 14 includes a heart-shaped cam 15 and a spring 16 as shown in FIG. Even if the energization is interrupted, the holding means 13 is locked and locked at that position by the action of the heart-shaped cam 15, and when the solenoid 10 is energized again, the locking position of the holding means 13 is changed. A part of the sliding member 6 and a part of the sliding member 6 are configured so as not to be engaged and locked.

  The microswitch (position detecting means) 17 detects the holding state of the holding means 13 that holds the hook 3 in a state in which the hook 3 is not removed, and outputs that it is held.

JP-A-10-272293

However, in the structure of the door switch device of the prior art, control is performed such that the door 1 is locked while the washing machine is in operation, that is, while the drum 12 is rotating. When the lever 1 is pulled to open the door 1 and the hook 3 is rotated in the direction of arrow A, the hook 3 is fixed between the outer portion of the door switch 5 and the sliding member 6 so that it cannot move. Therefore, when the lever 4 is pulled beyond a certain force and stress is applied to the hook 3, the hook 3 is broken at the center and the tip of the hook 3 is sandwiched between the outer portion of the door switch 5 and the sliding member 6. In some cases, the door 1 would open. In this case, since the operating member 8 is rotated via the sliding member 6 and the switch means 9 remains in the energized state, the motor 11 for rotating the drum 12 is in an operating state, so the door 1 is opened. However, there is a problem that a dangerous state of rotating the drum 12 occurs.

  The present invention solves the above-described conventional problems. When the user accidentally opens the door while the washing machine is in operation, the lever is pulled beyond a certain force and stress is applied to the hook. Even when the door is opened while the tip of the hook 3 is sandwiched between the outer portion of the door switch and the sliding member, the drum is stopped and the safety is ensured.

In order to achieve the above object, a door switch device for a washing machine according to the present invention includes a washing machine main body, an opening provided in the washing machine main body, a door provided with the opening being openable and closable, and the door. A washing machine comprising: a lever configured to be pulled to open the door; a hook that rotates in conjunction with the lever; and a push plate that is provided integrally with the hook and is rotated by the lever. a door switch device, shell and slide member of the closure of the door before notated click sliding movement by engagement is inserted into the hook insertion hole provided in the outer while rotating And holding means for preventing the opening of the door by restraining rotation of the hook by locking the hook to the outer shell and fixing the sliding member when the door is closed, and the holding means To drive Source and a lid opening detection hole pushing plate is inserted, which is provided integrally with the hook provided on the outer door is provided in the vicinity of the inner and and the sliding member of the cover opening detection hole Switch means for detecting opening and closing, and when the door is closed, the push plate portion is inserted into the lid opening detection hole as the hook is inserted into the hook insertion hole while rotating. The button included in the switch means is operated in the rotational direction by being inserted while rotating to turn on the switch means, and the portion of the push plate portion that pushes the switch means is It is flattened in a direction substantially parallel to the direction of insertion into the lid opening detection hole .

  As a result, if the user accidentally tries to open the door while the washing machine is running, pulling the lever beyond a certain force and applying stress to the hook, it will break at the center of the hook and the tip of the hook will Even if the door opens while being sandwiched between the outer shell and the sliding member, the push plate that pushes the switch means that detects the opening and closing of the door is detached from the switch means together with the door, so the switch means does not rotate the drum. It can be stopped to ensure safety.

  As a result, if the user accidentally tries to open the door while the washing machine is running, pulling the lever beyond a certain force and applying stress to the hook, it will break at the center of the hook and the tip of the hook will Even when the door opens while being sandwiched between the outer shell portion and the sliding member, the push plate portion that pushes the switch means for detecting the opening and closing of the door is integrated with the door and can be easily detached from the switch means. The rotation can be promptly stopped to ensure safety.

  The door switch device of the washing machine of the present invention is damaged at the center of the hook when the user accidentally opens the door while the washing machine is in operation and pulls the lever beyond a certain force and stresses the hook. Even when the door opens with the hook tip sandwiched between the door switch shell and the sliding member, the push plate that pushes the switch means for detecting the opening and closing of the door is easily detached from the switch means together with the door. Therefore, the switch means can quickly stop the rotation of the drum, and safety can be ensured.

The perspective view of the washing machine carrying the door switch apparatus in embodiment of this invention Configuration diagram of a door switch device and a lid of a washing machine in an embodiment of the present invention (A) Sectional view when the hook portion of the lid in the embodiment of the present invention is inserted into the door switch device (b) Sectional view when the push plate portion of the lid is inserted into the door switch device The internal structure perspective view of the door switch apparatus in embodiment of this invention The internal configuration top view when the sliding member of the door switch apparatus in embodiment of this invention is removed Sectional view of a washing machine equipped with a conventional door switch device Configuration diagram of conventional door switch device and lid of washing machine (A) Internal configuration plan view of a conventional door switch device (b) Vertical sectional view of a conventional door switch device Detailed view of the interior of a conventional door switch device

1st invention comprises a washing machine main body, the opening part provided in the said washing machine main body, the door which provided the said opening part so that opening and closing was possible, and it was provided in the said door and pulled in order to open the said door a lever that is, a hook that rotates in conjunction with the lever, said a washing machine door switch device having a push plate portion hooks and provided integrally rotated by the lever, and the outer, of the door a sliding member before notated click slides moved by engagement is inserted into the hook insertion hole provided in the outer while rotating the closed, when closing the door, the hook Holding means for locking the outer shell and fixing the sliding member to suppress the rotation of the hook to prevent the door from opening, a drive source for operating the holding means, and the outer shell provided on the outer shell Provided integrally with the hook Comprising a lid opening detection hole pushing plate is inserted that, a switch means for the door opening and closing detection is provided in the vicinity of the inner and and the sliding member of the cover opening detection hole, said door closing When formed, the push plate portion is included in the switch means by being inserted into the lid opening detection hole while being rotated and inserted into the hook insertion hole. The button is operated in the rotation direction to turn on the switch means, and the portion of the push plate portion that pushes the switch means is substantially parallel to the direction in which the push plate portion is inserted into the lid opening detection hole. If the user tries to open the door accidentally while the washing machine is operating, the lever is pulled beyond a certain force and stress is applied to the hook. of Even if the door opens with the hook tip broken between the outer part of the door switch and the sliding member, the push plate that pushes the switch means that detects the opening and closing of the door is integrated with the door. Since it easily disengages without interfering with the means, the switch means can quickly stop the rotation of the drum and ensure safety.

  The embodiments of the present invention have been described above with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a perspective view in which a lid of a washing machine equipped with a door switch device according to a first embodiment of the present invention is opened, FIG. 2 is a configuration diagram of the door switch device and the lid of the washing machine, and FIG. 3 is a hook of the lid FIG. 4 is a perspective view of the internal configuration of the door switch device, and FIG. 5 is a plan view of the internal configuration when the sliding member of the door switch device is removed. is there.

  In FIG. 1, the lid (door) 1 of the washing machine is provided with a hook 3, which is set so as to fit when the lid 1 is closed in the hook insertion hole 21 of the door switch device 5 housed in the device body 2. ing.

  In FIG. 2, the lid 1 is provided with a lever 4 for rotating the hook 3. A push plate portion 22 is provided integrally with the hook 3 and rotated by the lever 4. The door switch device 5 has a hook insertion hole 21 into which the hook 3 is inserted and a lid opening detection hole 23.

In FIG. 3, the portion of the sliding member 6 into which the hook is inserted is formed in a box shape. When the lid 1 is closed, the hook 3 is inserted into the hook insertion hole 21 of the door switch device 5. Is movable in the back direction (the right direction in FIG. 3A). By this movement, the hook 3 is locked to the outline of the door switch device 5 (per the lead line 5 of FIG. 3A), and the box-shaped sliding member 6 holds the hook 3 (FIG. 3A). ) Apply a force from the left to the right to suppress it. Further, when the push plate portion 22 provided integrally with the hook 3 is inserted into the lid opening detection hole 23 of the door switch device 5, the button 25 for detecting the opening / closing of the lid is in the rear direction (FIG. 3B). ) To the right). The contact surface 22a of the push plate portion 22 with the button is a flat surface.

  In FIG. 4, the sliding member 6 is movable by the hook 3, and a reaction force is applied in the C direction by the spring A 24. The lever 4 is pulled to open the lid 1, and the sliding is performed in the C direction by the hook 3. The member 6 can be moved. When the lid 1 is closed, when the button 25 is pushed by the push plate portion 22, the switch A27 is pushed via the spring B26, and the switch A27 is turned on. When the lid 1 is opened and the push plate portion 22 provided integrally with the hook 3 is separated from the button 25, the switch A27 is turned off. When the lid 1 is locked, the solenoid 10 is energized, the holding means 13 is moved in the horizontal direction in FIG. 5, and is converted into the vertical direction in FIG.

  FIG. 5 is a view in which the sliding member 6 is removed, but the coupling mechanism component 28 has a protrusion 30 at the tip, and the sliding member 6 is fixed or released by the movement of the protrusion 30. Can be locked and unlocked. When the holding means 13 is moved by the solenoid 10, the rotary lever 35 is rotated via the spring C29 and the switch B31 is pressed to detect whether it is locked or unlocked by being turned on in the locked state and turned off in the released state. can do. The switch A27 and the switch B31 are connected to lead wires 32 and 33, and an open / close signal can be sent to a control device (not shown) in the device main body 2.

  The operation and action of the door switch device configured as described above will be described below.

  When the lever 4 is pulled and the hook 3 is rotated to open the lid 1, the lid 1 is opened by sliding the sliding member 6 by the movement of the tip of the hook 3 received in the hook insertion hole 21 of the door switch device 5. Can do. Since the hook 3 has a biasing force when the lid 1 is closed, the front end portion of the hook 3 is inserted into the hook insertion hole 21 of the door switch device 5 by pushing and closing the lid 1, and the sliding member 6. By sliding the, the lid 1 can be held in the closed state.

When the lid 1 is closed in conjunction with the movement of the hook 3, the push plate portion 22 of the hook 3 is inserted into the lid opening detection hole 23 of the door switch device 5, and the button 25 for detecting the opening / closing of the lid 1 is Moves in the back direction. The operation stroke of the button 25 is set in the same direction as the rotation direction of the push plate portion 22. When the button 25 is pushed by the push plate portion 22, the switch A27 is pushed via the spring B26, and the switch A27 is turned on. In this state, it is determined that the lid is closed.

When the lid 1 is opened, the hook 3 rotates in conjunction with the lever 4 and the push plate portion 22 is separated from the lid opening detection hole 23. Therefore, the button 25 is returned to the original state by the spring B26 and the switch A27 is turned off. Become. From this state, it can be determined that the lid 1 is open. The contact surface 22a of the push plate portion 22 with the button is a flat surface.

  The sliding member 6 movable by the hook 3 is given a reaction force in the C direction by a spring A24. When the lever 4 is pulled to open the lid 1, the sliding member 6 can be moved in the C direction by the hook 3. In order to start washing, when the lid 1 is closed and locked, the solenoid 10 is energized, the holding means 13 is moved in the horizontal direction, converted into the vertical direction by the connecting mechanism component 28, and moved in the vertical direction. A projection 30 is provided at the tip of the coupling mechanism component 28. When the projection 30 moves, the projection 30 fits and is fixed to the sliding member 6, or the projection 30 is detached from the sliding member 6. Can be unlocked, locked or unlocked.

  When the holding means 13 is moved laterally by the solenoid 10, the rotary lever 30 is rotated via the spring C29 and the switch B31 is pressed, so that it is turned on in the locked state and turned off in the released state. Can be detected. The switch A27 and the switch B31 are connected to lead wires 32 and 33, and an open / close signal can be sent to the control device in the device main body 2. In particular, when the switch A27 is OFF, it is determined that the lid 1 is in an open state, and the control device quickly stops the rotation of the drum.

  As described above, in the present embodiment, the outer shell, the sliding member that slides and moves when the door hook is engaged when the door is closed, and when the door is closed, the hook is Holding means for locking the outer shell and suppressing the hook by the sliding member to prevent the door from opening, a drive source for operating the holding means, and door opening / closing detection provided in the vicinity of the sliding member When the door is closed, the switch means is turned on by a push plate portion provided integrally with the hook, so that the user accidentally opens the door while the drum type washing machine is in operation. If the lever is pulled more than a certain force to open and stress is applied to the hook, the door will open with the hook tip broken and the hook end sandwiched between the door switch outer part and the sliding member. The Even if the Mau, push plate portion to press the switch means for detecting the door opened and closed for release from the switch means in the door and integrally, it is possible to switch means stops the rotation of the drum, to ensure safety.

  In the present embodiment, by flattening the portion of the push plate portion that pushes the switch means, the user tries to open the door accidentally while the drum type washing machine is in operation, and the lever is pushed beyond a certain force. A switch that detects whether the door opens or closes even if the door opens while the hook is stressed by applying tension to the hook, causing the hook to break at the center and the tip of the hook being sandwiched between the outer part of the door switch and the sliding member. Since the push plate portion that pushes the means is integrated with the door and easily disengages from the switch means, the switch means can quickly stop the rotation of the drum and ensure safety.

  In addition, the switch means sets the operation stroke in the same direction as the rotation direction of the push plate portion, so that the user accidentally opens the door while the drum type washing machine is in operation, pulling the lever beyond a certain force, When stress is applied to the hook, the switch means that detects the opening and closing of the door even if the door opens while the hook tip breaks and the hook tip is sandwiched between the outer part of the door switch and the sliding member Since the pushing plate portion is integrated with the door and easily disengages from the switch means, the switch means can quickly stop the rotation of the drum and ensure safety.

  As described above, the door switch device of the washing machine according to the present invention is the center of the hook when the user tries to open the door accidentally during operation and the lever is pulled beyond a certain force and stress is applied to the hook. Even if the door is opened with the hook tip sandwiched between the outer part of the door switch and the sliding member, the push plate that pushes the switch means that detects the opening and closing of the door is integrated with the door and the switch means Since the switch means can stop the rotation of the drum and ensure safety, it can be applied to uses such as washing machines and dishwashers.

1 Door (lid)
3 Hook 4 Lever 5 Door switch device 6 Sliding member 10 Solenoid (drive source)
13 Holding means 21 Hook insertion hole 22 Press plate
22a Contact surface (Pushing part)
23 Cover open detection hole 25 Button (switch means)
27 Switch A (Switch means)

Claims (1)

A washing machine main body, an opening provided in the washing machine main body, a door provided to open and close the opening, a lever provided on the door and configured to be pulled to open the door; a washing machine door switch device having a hook that rotates in conjunction with the lever, and a pushing plate which is rotated by the lever provided integrally with the hook, and the outer, front the closing of the door notated When the door is closed, the hook is locked to the outer shell when the door is closed, and a sliding member that slides and moves by being inserted into a hook insertion hole provided in the outer shell while the hook rotates. said holding means for suppressing the rotation of the hook by fixing the sliding member to prevent opening of the door, a drive source for operating the holding means, provided integrally with the hook provided on the outer with Pressed plate Comprising a lid opening sensing hole to be inserted, and a switching means for the door opening and closing detection is provided in the vicinity of the inner and and the sliding member of the cover opening detection hole, when closed the door, the push When the hook is inserted into the hook insertion hole while being rotated , the plate portion is inserted into the lid opening detection hole while rotating the button included in the switch means in the rotation direction. The washing means wherein the switch means is turned on by operating, and the portion of the push plate portion that pushes the switch means is planarized substantially parallel to the direction in which the push plate portion is inserted into the lid opening detection hole. Machine door switch device.

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