JP2005155175A - Cover locking device, detector for cover locking device, and washing machine provided with cover locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cover locking device for detecting an opening and closing state of a cover and a locked state of the cover with one detector, and to provide a washing machine provided with the cover locking device. <P>SOLUTION: The cover locking device comprises a body case 2, an electromagnetic plunger device 3, a locking member 5 enabling locking of the cover provided on the device and unlocking of the locking, and a driven mechanism 6 interlocked with reciprocation of a plunger member 3B of the electromagnetic plunger device 3 and for reciprocating the locking member 5. In order to retract one end of the locking member 5 from an opening 2A of the body case 2 by reciprocation of the plunger member 3B, the problem to be solved can be solved by providing the cover locking device with a winding coil for changing inductance by opening and closing of the cover provided on the device and reciprocation of the plunger member 3B, and the detector 7 for detecting the opening and closing state of the cover, and the state of locking of the cover and unlocking of the locking. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a lid lock device, a detection device for a lid lock device, and a washing machine including the lid lock device.

As this type of prior art, a main body case, an electromagnetic plunger device comprising an electromagnetic coil portion and a plunger member, a lock member that enables locking and unlocking of a cover for a clothes slot in a washing machine, and an electromagnetic plunger A reciprocating mechanism for reciprocating the lock member in conjunction with the reciprocating movement of the plunger member of the apparatus, and a reed switch for detecting the opening / closing of the cover for the clothing insertion port, and reciprocating the plunger member of the electromagnetic plunger apparatus In addition, one end of the lock member is projected and retracted from the opening of the main body case, and a switch comprising a pair of contacts and a contact piece for detecting whether or not the one end of the lock member is projected and retracted from the opening of the main body case is provided Such a lid lock device has been known (for example, see Patent Document 1).
Japanese Patent Laying-Open No. 2003-290593 (paragraph numbers 0010 to 0029, FIG. 3)

However, the above-described conventional lid lock device includes a reed switch that detects the open / closed state of the lid for the clothing insertion port, and a pair of contacts and contact pieces that detect the lock of the lid by the lock member and the unlocked state thereof. The switch is provided with two types of switches, a terminal piece and a lead wire for connecting the reed switch to the power source, a terminal piece and a lead wire for connecting the switch consisting of the contact and the contact piece to the power source, and an electromagnetic Terminal pieces and lead wires for connecting the electromagnetic coil portion of the plunger device to the power source are necessary, and the terminal pieces and lead wires are housed in the electromagnetic plunger device, the reed switch, and the switch composed of the contacts and contact pieces. The main body case is taken out from three directions.
For this reason, the conventional lid lock device described above requires two types of switches, increases the number of parts, increases the number of terminal pieces and lead wires, and increases the number of attachment work processes, resulting in poor productivity. Moreover, since the terminal piece and the lead wire are taken out from the three directions of the main body case, the lid lock device is attached to the device and the power circuit provided on the control board of the device is connected to the lead wire drawn from the lid lock device. In this case, there is a problem that workability of the connection work is poor. In addition, since the switch is composed of a pair of contacts and contact pieces, an insulating film may be generated on the surface of the contacts, or condensation may occur between the contacts in a highly humid environment. May malfunction.

  In view of the above problems, the first object of the present invention is to detect the open / closed state of the lid, the locked state of the lid by the lock member, and the unlocked state without using two types of switches. An object of the present invention is to provide a lid lock device that can be used.

    A second object of the present invention is to provide a lid locking device detection device suitable for use in a lid locking device that achieves the first object.

  The third object of the present invention is to provide a washing machine provided with a lid locking device that can detect the open / closed state of the lid, the locking of the lid by the lock member, and the unlocked state with a single detection device.

  In order to achieve the first object, the present invention provides a main body case, an electromagnetic plunger device comprising an electromagnetic coil portion and a plunger member, a lock provided on a device, and a lock member that enables the lock to be released. A follower mechanism for reciprocating the lock member in conjunction with reciprocation of the plunger member of the electromagnetic plunger device, and reciprocating the plunger member of the electromagnetic plunger device, In the lid locking device that is projected and retracted from the opening of the main body case, a winding coil whose inductance is changed by opening and closing of the lid provided in the device and a reciprocating motion of the plunger member, and a capacitor connected in parallel to the winding coil The oscillator formed from the open / close state of the lid and the locking and unlocking of the lid by the lock member It is characterized in that a detection device for detecting the state.

  In order to achieve the second object, the present invention provides a coil case, a winding coil wound around an outer periphery of a cylindrical portion protruding from the inner bottom of the coil case, and the coil adjacent to the winding coil. A capacitor installed in the case and two oscillation circuit terminal pieces extending vertically from the inner bottom of the coil case. The two oscillation circuit terminal pieces are connected to the winding coil and the capacitor. A detection device configured to connect the winding coil and the capacitor so as to form an LC oscillation circuit, wherein the detection device is detachably attached to a body case of a lid lock device.

  In order to achieve the third object, the present invention makes it possible to open and close a clothing input port lid for opening and closing a clothing input port provided on the outer frame, and to lock and unlock the clothing input port lid. A lid locking device that at least includes a main body case, an electromagnetic plunger device including an electromagnetic coil portion and a plunger member, and locks and unlocks the clothing input lid. One end of the lock member by reciprocating the plunger member of the electromagnetic plunger device, including a lock member and a driven mechanism for reciprocating the lock member in conjunction with the reciprocation of the plunger member of the electromagnetic plunger device And a locking opening through which one end of the protruding and retracting lock member enters and exits is provided in the lid for clothing input port. In the washing machine, the winding coil whose inductance is changed by opening / closing of the clothing inlet lid and the reciprocating motion of the plunger member, and an oscillator formed by a capacitor connected in parallel to the winding coil, The present invention is characterized in that a detection device is provided for detecting the open / closed state of the clothing input lid and the lock of the clothing input lid by the lock member and the unlocked state thereof.

  According to the present invention, without using two types of switches, that is, a reed switch and a switch composed of a pair of contacts and contact pieces, a single detection device can be used to open and close the lid, lock the lid by the lock member, and lock the lid. Since the release state can be detected, a lid lock device with excellent productivity and connection workability and few malfunctions was obtained.

  According to the present invention, when the detection device fails, the entire lid lock device is not replaced, but only the failed detection device needs to be replaced, and the failed detection device is removed from the lid lock device for repair inspection. A detection device for a lid lock device capable of performing the above is obtained.

  According to the present invention, without using two types of switches, a reed switch and a switch composed of a pair of contact points and contact pieces, a single detection device can be used to open and close the clothing input cover and the clothing by the lock member. By using a lid locking device that can detect the lock of the inlet lid and the unlocked state thereof, a washing machine that can achieve low cost and high reliability is obtained.

  DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a lid lock device, a lid lock device detection device, and a washing machine using the lid lock device according to the present invention will be described with reference to the drawings.

  In FIG. 1, a lid locking device 1 includes a main body case 2, an electromagnetic plunger device 3, a lock member 5 that enables locking and unlocking of a lid 4 provided on the device, and a plunger member of the electromagnetic plunger device 3. A follower mechanism 6 for reciprocating the lock member 5 in conjunction with the reciprocation of 3B, and a detection device 7 for detecting the open / closed state of the lid 4 and the lock of the lid 4 by the lock member 5 and the unlocked state thereof. By reciprocating the plunger member 3 </ b> B of the plunger device 3, the one end portion 5 </ b> A of the lock member 5 is configured to protrude and retract from the opening 2 </ b> A of the main body case 2.

  As shown in FIGS. 2 to 4, the main body case 2 is composed of a synthetic resin lower case 8 and a synthetic resin upper case 9. On the lower case 8 side, the electromagnetic plunger device 3 and the lock member 5 are provided. After the driven mechanism 6 and the detection device 7 are detachably mounted, the upper case 9 is detachably attached to the lower case 8.

  The electromagnetic plunger device 3 includes an electromagnetic coil portion 3A, a plunger member 3B that is detachably fitted in the electromagnetic coil portion 3A, and two electromagnetic coil terminals that are electrically connected to the electromagnetic coil portion 3A. When the power supply voltage (AC 100V full-wave rectification) is applied to the electromagnetic coil portion 3A, the plunger member 3B is attracted and moved to the electromagnetic coil portion 3A side. The plunger member 3B is a magnetic body and is made of an elongated rectangular steel material (SUS430 or the like), and has one through-hole fitting hole 3B-1 as shown in FIG.

  The lock member 5 is made of a synthetic resin and has an elongated rectangular shape as shown in FIG. As shown in FIG. 7, a cylindrical projecting body 5 </ b> B is integrally formed at the approximate center of the lower surface of the lock member 5. A pin 5C and a pin urging spring 5D are attached to the cylindrical protrusion 5B. The tip of the pin 5C is urged by the pin urging spring 5D and always protrudes from the tip of the cylindrical protrusion 5B. On the one end portion 5A side of the lock member 5, there is formed a fitting groove 5E into which the blade of a flat screwdriver can be fitted.

  As shown in FIGS. 1 to 4, the driven mechanism 6 includes an operation lever 10, a plunger lever 11, a return spring 12, and a heart cam 13. The operation lever 10 is made of synthetic resin, and as shown in FIGS. 8 and 9, a fitting slot 10 </ b> A is formed on one end side to fit the cylindrical protrusion 5 </ b> B formed on the lower surface of the lock member 5. And it is set as the structure which forms the fitting circular hole 10B where it fits in the support shaft body 8A which protruded and formed from the inner bottom of the lower case 8 in the other end side. Furthermore, an engaging member 10 </ b> C that extends outward from the fitting circular hole 10 </ b> B and engages with the plunger lever 11 is formed on the other end side of the operation lever 10.

  The plunger lever 11 is made of synthetic resin, and as shown in FIGS. 10 and 11, the protrusion 11A and the plunger member 3B are fitted into the fitting hole 3B-1 provided in the plunger member 3B on one end side. A flange that is provided with a pair of protruding ribs 11E that embrace both side surfaces of the lower case 8 and that fits into a laterally elongated groove 8B formed on the other side of the inner wall of the lower case 8 so as to extend in the longitudinal direction of the plunger member 3B 11B is formed. Further, a concave portion having a semicircular cross section for mounting the coiled return spring 12 on the surface side opposite to the surface on which the protrusion 11A is provided is provided on one end side of the plunger lever 11. 11C is formed. The flange 11B of the plunger lever 11 is formed with an engagement notch 11D with which the engagement member 10C of the operation lever 10 is engaged. The return spring 12 urges the plunger lever 11 in a direction away from the electromagnetic coil portion 3A side of the electromagnetic plunger device 3, and is formed by winding a stainless steel wire into a coil having a diameter of about 4 mm about 13 times. Is done.

  The heart cam 13 is made of synthetic resin and has a rectangular plate shape as shown in FIGS. 12 and 13 so that the heart cam 13 can slide in a direction perpendicular to the reciprocating direction of the lock member 5. It is installed in a storage step 8C provided on the inner bottom of the lower case 8 located below the lock member 5. On the upper surface of the heart cam 13, a heart-shaped protrusion 13A and guide grooves 13B, 13C, 13D, 13E, and 13F having different bottom surface heights are provided around the heart-shaped protrusion 13A. Since the bottom surface portions of the guide grooves 13B, 13C, 13D, 13E, and 13F have different heights, they become sliding surfaces on which steps are formed. The tip of the pin 5C provided on the cylindrical protrusion 5A formed on the lower surface of the lock member 5 slides on the stepped slide surface, so that the one end portion 5A of the lock member 5 protrudes from the opening 2A of the main body case 2. The holding state is released and the holding state is released.

  That is, the pin 5C of the lock member 5 is guided by the guide grooves 13B, 13C, 13D, 13E, and 13F, and has a stepped sliding surface formed by the bottom surfaces of the guide grooves 13B, 13C, 13D, 13E, and 13F. While being slidably contacted (in a state of being pressed by the pin urging spring 5D), as shown in FIG. 12, it moves in the order of position P1-position P2-position P3-position P4-position P1. When the pin 5C of the lock member 5 moves in the order of position P1-position P2 by moving in the guide grooves 13B, 13C, the heart cam 13 moves downward in FIG. The part 5A moves in a direction to exit from the opening 2A of the main body case 2. Next, when the pin 5C of the lock member 5 moves in the order of the position P2 to the position P3 by moving in the guide grooves 13D and 13E, the pin 5C is locked to the heart-shaped protrusion 13A, and the lock member 5 The state in which the one end portion 5A protrudes from the opening 2A of the main body case 2 is maintained. Next, when the pin 5C of the lock member 5 moves in the guide grooves 13E, 13F, and 13B and moves in the position P3-position P4-position P1, the heart cam 13 moves upward in FIG. The state in which the one end portion 5A of the member 5 protrudes from the opening 2A of the main body case 2 is released, and the one end portion 5A of the lock member 5 moves in a direction to be immersed in the opening 2A of the main body case 2. Note that the numbers on the bottom surfaces of the guide grooves 13B, 13C, 13D, 13E, and 13F shown in FIG. 12 indicate the heights of the bottom surfaces.

  As shown in FIGS. 14 and 15, the detection device 7 includes a coil case 14 that can be mounted on the same side surface as the side surface 2 </ b> B at which one end of the lock member 5 of the main body case 2 protrudes and projects, and protrudes from the inner bottom of the coil case 14. A winding coil 15 wound around the outer periphery of the cylindrical portion 14A, a capacitor 16 installed in the coil case 14 adjacent to the winding coil 15, and two pieces extending in the vertical direction from the inner bottom of the coil case 14 Oscillator circuit terminal pieces 17 and 17A. The winding coil 15 and the capacitor 16 are connected to the two oscillation circuit terminal pieces 17 and 17A so that the oscillator 18 is formed by the LC oscillation circuit of the winding coil 15 and the capacitor 16. The coil case 14 is made of synthetic resin, and as shown in FIGS. 16 and 17, a cylindrical portion 14A for mounting the winding coil 15 and terminal mounting for mounting the oscillation circuit terminal pieces 17 and 17A. The part 14B, a pair of guide bosses 14C for guiding the lead wire 15A of the winding coil 15, and a pair of locking grooves 14D provided at the opening edge of the coil case 14 are integrally formed. The cylindrical portion 14 </ b> A of the coil case 14 has a size and shape in which one end side of a plunger member 3 </ b> B that is an elongated rectangular material shape can be fitted. The winding coil 15 is made of a two-type polyurethane fused copper wire having a diameter of 0.12 mm, has a shape that can be attached to the cylindrical portion 14A of the coil case 14, and has about 500 turns. As the capacitor 16, a polypropylene film capacitor having a capacitance of 0.01 to 0.03 microfarad and a small change in capacitance due to temperature is used.

  The oscillation circuit terminal pieces 17 and 17A are made of a brass plate having a thickness of 0.5 mm. As shown in FIG. 18, the press-fitting notches 17-1 for press-fitting into the terminal mounting portion 14B and the lead wires of the winding coil 15 A fixing piece 17-2 for fixing 15A with solder, a fixing notch 17-3 for fixing the connecting member 16A of the capacitor 16 with solder, a notch 17-4 for retaining, a coil case A locking piece 17-5 to be locked in a locking groove 14D provided at the opening edge of 14 is integrally formed. The fixed notch 17-3 is positioned above the opening edge of the coil case 14 as shown in FIG. The capacitor 16 is installed in a state leaning diagonally in the coil case 14 by fixing the connecting member 16A to the fixed notch 17-3. Therefore, the height dimension X of the coil case 14 can be set small. The coil case 14 is filled with a urethane casting agent serving as an insulating material of the winding coil 15 up to the position of the two-dot chain line shown in FIG.

  In order to produce the detection device 7 having the above configuration, first, the coil groove 14 is wound around the outer periphery of the cylindrical portion 14A with the opening of the locking groove 14D provided at the opening edge of the coil case 14 facing upward. The wire coil 15 is fitted. Next, the two oscillation circuit terminal pieces 17, 17 </ b> A are engaged with the engagement grooves 14 </ b> D provided at the opening edge of the coil case 14 to fit the two oscillation circuit terminal pieces 17, 17 </ b> A. The pieces 17 and 17A are horizontally supported along the opening end of the coil case 14 so that the fixed pieces 17-2 of the oscillation circuit terminal pieces 17 and 17A face upward. Next, after winding the end portion of the lead wire 15A of the winding coil 15 around the fixed piece 17-2 of the oscillation circuit terminal pieces 17 and 17A facing upward, the end portion is turned to the fixed piece 17-2. Solder. In this case, the lead wire 15A is slack so that it can pass between the inner wall of the coil case 14 and the guide boss 14C. Next, when the soldering operation of the lead wire 15A of the winding coil 15 to the oscillation circuit terminal pieces 17 and 17A is completed, the locking pieces 17-5 of the oscillation circuit terminal pieces 17 and 17A are connected to the coil case 14. After being removed from the locking groove 14D provided at the opening edge of the coil circuit, the press-fitting notches 17-1 of the oscillation circuit terminal pieces 17 and 17A are press-fitted into the terminal mounting portion 14B of the coil case 14, thereby The oscillation circuit terminal pieces 17 and 17A are fixed to the inner bottom of the coil case 14 so that the terminal pieces 17 and 17A extend from the inner bottom of the coil case 14 in the vertical direction. In this case, in a state where the press-fitting notches 17-1 of the oscillation circuit terminal pieces 17 and 17A are press-fitted into the terminal mounting portion 14B of the coil case 14, as shown in FIG. 15, the oscillation circuit terminal pieces 17 and 17A again. The locking piece 17-5 is fitted into a locking groove 14D provided on the opening edge of the coil case 14. Next, the capacitor 16 is leaned between the winding coil 15 and the two oscillation circuit terminal pieces 17 and 17A so that the connection member 16A of the capacitor 16 faces upward, and then the connection member of the capacitor 16 16A is locked to the fixed notches 17-3 of the oscillation circuit terminal pieces 17 and 17A, and then the connection member 16A of the capacitor 16 is soldered to the fixed notches 17-3. Finally, the detection device 7 can be produced by filling the coil case 14 with a urethane casting agent serving as an insulating material of the winding coil 15 up to the position of the two-dot chain line shown in FIG.

  In the production of the detection device 7, when the urethane casting agent is filled in the coil case 14, the urethane casting agent is prevented from adhering to the outer peripheral surface of the coil case 14 and the opening end surface of the coil case 14, There are no bubbles around the lead wire 15A of the winding coil 15 and the oscillation circuit terminal pieces 17 and 17A to communicate between the different-polarity charging parts. In this manner, the produced detection device 7 is detachably attached to the main body case 2 of the lid lock device 1. When the lid locking device 1 is attached to the device, the winding coil 15 of the coil case 14 in the detection device 7 and the magnetic piece 4A provided on the device lid 4 face each other with the lid 4 closed. It is like that. The magnetic piece 4A is an iron piece such as SUS430.

  As shown in FIGS. 19 and 20, the coil case 14 of the detection device 7 is accommodated in the inner bottom of the lower case 8 of the main body case 2, and the two oscillation circuit terminal pieces 17 and 17 </ b> A of the detection device are plungers. An accommodation recess 8D that can extend along the longitudinal direction of the member 3B is formed in the inner bottom portion of the lower case 8 positioned below the plunger member 3B. A support shaft 8A is formed on the inner bottom of the housing recess 8D so as to be positioned below the plunger member 3B. Support walls 8E for supporting the oscillation circuit terminal pieces 17 and 17A are formed on the left and right sides of the support shaft body 8A. By providing a pair of elongated notches 8E-1 on the support wall 8E and engaging the notch 17-4 for retaining the oscillation circuit terminal pieces 17 and 17A with the pair of elongated notches 8E-1. The oscillation circuit terminal pieces 17 and 17A are prevented from coming off when the detection device 7 is incorporated in the main body case 2 (see FIGS. 3 and 4). On the inner bottom of the lower case 8 of the main body case 2, a pair of holding claws 8F that detachably and slidably hold the lock member 5 and the lock member 5 are prevented from entering the main body case too much. A blocking body 8G is formed. The storage step 8 </ b> C in which the heart cam 13 is installed is formed in the inner bottom portion of the lower case 8 located below the lock member 5. A pair of sliding bases 8H for the lock member 5 is formed on the inner bottom portion of the lower case 8 located between the pair of holding claws 8F.

  A partition wall 8J that forms a storage space 8I that stores the lower half of the electromagnetic coil portion 3A of the electromagnetic plunger device 3 is formed on the inner bottom of the lower case 8, as shown in FIGS. . On the side surface of the lower case 8, a lower opening 8 </ b> K in which the one end portion 5 </ b> A of the lock member 5 is projected and retracted is formed. On the side surface opposite to the side surface of the lower case 8 where the lower opening 8K is formed, an electromagnetic plunger device terminal piece extraction opening 8L for extracting the electromagnetic coil terminal piece 3C of the electromagnetic plunger device 3 is formed. On the side surface where the lower opening 8K of the lower case 8 is formed, a detection device opening 8M for projecting a part of the coil case 14 in the detection device 7 is formed. As shown in FIG. 19, the laterally long groove 8B into which the flange 11B of the plunger lever 11 is fitted is formed on the inner wall of the lower case 8 close to the support shaft body 8A. The horizontally long groove 8B is formed with a notch 8N for engaging member for extending the engaging member 10C of the operating lever 10 into the horizontally long groove 8B. In the housing recess 8D, a detection device terminal piece lead opening 8P for drawing out the oscillation circuit terminal pieces 17 and 17A in the detection device 7 is formed. The detection device terminal piece lead-out opening 8P has a position where the drawing direction of the oscillation circuit terminal pieces 17 and 17A of the detection device 7 and the drawing direction of the electromagnetic coil terminal piece 3C of the electromagnetic plunger device 3 are the same direction. Is provided. The housing recess 8D of the lower case 8 is provided with an oscillation circuit terminal piece partition wall 8S. On the side surface of the lower case 8 other than the side surface on which the lower opening 8K and the detection device opening 8M are provided, a plurality of attachment pieces 8T for fixing the main body case 2 to a device to which the lid lock device 1 is attached are provided. ing.

  As shown in FIGS. 22 and 23, the upper case 9 of the main body case 2 is formed with a partition wall 9B that forms a storage space 9A for storing the upper half of the electromagnetic coil portion 3A of the electromagnetic plunger device 3. On the side surface of the upper case 9, an upper opening 9 </ b> C that allows the one end portion 5 </ b> A of the lock member 5 to appear and disappear is formed. An electromagnetic plunger device terminal piece extraction opening 9D for extracting the electromagnetic coil terminal piece 3C of the electromagnetic plunger device 3 is formed on the side surface opposite to the side surface of the upper case 9 where the upper opening 9C is formed. On the side surface where the upper opening 9 </ b> C of the upper case 9 is formed, a detection device opening 9 </ b> E for projecting a part of the coil case 14 in the detection device 7 is formed. A relief groove 9 </ b> F for the return spring 12 is formed in the inner bottom of the upper case 9. A locking claw 9G is formed on the side surface of the upper case 9 where the upper opening 9C or the electromagnetic plunger device terminal piece lead opening 9D is not formed. A detection device support claw 9 </ b> H is formed on the inner bottom of the upper case 9. As shown in FIG. 3, the upper case 9 and the lower case 8 are integrated by fitting a locking claw 9 </ b> G into a locking step portion 8 </ b> R formed on the outer surface of the lower case 8. Become. The opening 2A of the main body case 2 is formed by the lower opening 8K of the lower case 8 and the upper opening 9C of the upper case 9 by integrating the upper case 9 and the lower case 8. The projecting opening 2C for projecting a part of the detection device 7 is formed by integrating the upper case 9 and the lower case 8 with the detection device opening 8M of the lower case 8 and the detection device opening 9E of the upper case 9. It is formed.

  In the main body case 2, as shown in FIG. 1, the electromagnetic plunger device 3 and the electromagnetic plunger device 3 are arranged so that the reciprocating direction of the plunger member 3B of the electromagnetic plunger device 3 is substantially the same as the reciprocating direction of the lock member 5. The detection device 7 is arranged so that the lock member 5 and the driven mechanism 6 are accommodated, and the distal end portion of the plunger member 3 </ b> B of the electromagnetic plunger device 3 is fitted in the winding coil 15. When the plunger member 3B is attracted to the electromagnetic coil portion 3A, the distal end portion of the plunger member 3B is positioned outside the winding coil 15, and when the plunger member 3B is not attracted to the electromagnetic coil portion 3A, the winding coil 15 The tip of the plunger member 3B is positioned inside.

  As shown in FIG. 24, the oscillator 18 of the detection device 7 is in a state in which the lid 4 provided in the device is open, and the electromagnetic plunger device 3 does not operate and the tip of the plunger member 3B is wound coil. When it is in a state of being fitted into the inner wall 15, an oscillation frequency of about 24 kHz is generated. Further, as shown in FIG. 25, the oscillator 18 of the detection device 7 has a magnetic piece 4 </ b> A made of an iron piece or the like provided on the lid 4 when the lid 4 provided on the device is closed. When the coil case 14 is close to the housed coil case and the electromagnetic plunger device 3 does not operate and the tip of the plunger member 3B is fitted in the winding coil 15, an oscillation frequency of about 23 kHz is obtained. It is supposed to occur. Further, as shown in FIG. 26, the oscillator 18 of the detection device 7 has a magnetic piece 4 </ b> A of the lid 4 in a coil case 14 that houses the winding coil 15 in the detection device 7 when the lid 4 provided in the device is closed. When the electromagnetic plunger device 3 operates to attract the plunger member 3B to the electromagnetic coil portion 3A so that the distal end portion of the plunger member 3B is not positioned in the winding coil 15, the frequency is approximately 25 kHz. The oscillation frequency is generated.

  In assembling the lid lock device 1 having the above-described configuration, first, the heart cam 13 is installed in the storage step portion 8 </ b> C of the lower case 8. Next, the coil case 14 of the detection device 7 is fitted into the detection device opening 8M, and the notch 17-4 for preventing the oscillation circuit terminal pieces 17 and 17A of the detection device 7 is connected to the support wall of the lower case 8. The detection device 7 is attached to the lower case 8 by fitting into the 8E elongated notch 8E-18. Next, the fitting circular hole 10 </ b> B of the operation lever 10 is fitted to the support shaft body 8 </ b> A in the housing recess 8 </ b> D of the lower case 8, so that the fitting long hole 10 </ b> A of the operation lever 10 is positioned above the heart cam 13. In the state where the engaging member 10C of the operating lever 10 is positioned in the laterally long groove 8B of the lower case 8 via the engaging member notch 8N of the lower case 8, the operating lever 10 is supported on the supporting shaft body 8A. Attach to the slewing lever. Next, with the cylindrical protrusion 5B of the lock member 5 fitted in the fitting elongated hole 10A of the operation lever 10, the lock member 5 is fitted into the pair of holding claws 8F, so that the lower case 8 The lock member 5 is slidable on the opening 8K and the slide base 8H, and the pin 5C of the lock member 5 is a step on the bottom surface of the guide grooves 13B, 13C, 13D, 13E, and 13F in the heart cam 13. Make the surface slidable. Next, in a state where the other end side of the plunger member 3B of the electromagnetic plunger device 3 is fitted in the electromagnetic coil portion 3A of the electromagnetic plunger device 3, one end side of the plunger member 3B of the electromagnetic plunger device 3 is connected to the detection device 7. The electromagnetic plunger device 3 is attached to the lower case 8 by fitting the electromagnetic coil portion 3 </ b> A side of the electromagnetic plunger device 3 into the storage space 8 </ b> I while being fitted in the cylindrical portion 14 </ b> A of the coil case 14. Next, the protrusion 11A of the plunger lever 11 is fitted into the fitting hole 3B-1 of the plunger member 3B, and the engagement notch 11D of the plunger lever 11 is fitted to the engagement member 10C of the operation lever 10. Thus, the flange 11B of the plunger lever 11 is fitted into the horizontally long groove 8B of the lower case 8 so that the plunger lever 11 can slide along the horizontally long groove 8. Next, the return spring 12 is mounted between the concave portion 11C of the plunger lever 11 and the side end surface on the electromagnetic coil portion 3A side. Finally, the upper case 9 is placed over the lower case 8 and the locking claw 9G of the upper case 9 is fitted into the locking step portion 8R of the lower case 8 so that the lower case 8 and the upper case 9 are integrated. As a result, the assembly of the lid locking device 1 is completed.

  The operation of the lid locking device 1 having the above configuration will be described as follows with reference to FIGS. That is, when the lid 4 provided in the device is in an open state, the electromagnetic plunger device 3 does not operate, and the tip of the plunger member 3B is fitted in the winding coil 15 as shown in FIG. In addition, one end portion 5 </ b> A of the lock member 5 does not protrude from the opening 2 </ b> A of the main body case 2. In this state, the detection device 7 generates an oscillation frequency of about 24 kHz and detects that the lid 4 is in the open state and the lock member 5 is in the unlocked state.

  Next, when the lid 4 provided on the device is closed, as shown in FIG. 25, the magnetic piece 4 </ b> A provided on the lid 4 comes close to the coil case 14 that houses the winding coil 15 in the detection device 7. In addition, the distal end portion of the plunger member 3 </ b> A is fitted in the winding coil 15 without operating the electromagnetic plunger device 3. In this state, the detection device 7 generates an oscillation frequency of about 23 kHz, and detects that the lid 4 is closed and the lock member 5 is unlocked.

  Next, when the lid 4 provided on the device is closed and the electromagnetic plunger device 3 is operated in a state in which the magnetic piece 4A of the lid 4 is brought close to the coil case 14 housing the winding coil 15 in the detection device 7. The plunger member 3B is attracted to the electromagnetic coil portion 3A side and moves to the right as shown in FIG. When the plunger member 3B moves in the right direction, the plunger lever 11 moves in the right direction against the urging force of the return spring 12. When the plunger lever 11 moves in the right direction, the operation lever 10 rotates counterclockwise as shown in FIG. 26 with the support shaft body 8A as a rotation axis. When the operation lever 10 rotates counterclockwise, the lock member 5 moves in a direction in which the one end portion 5A of the lock member 5 goes out of the opening 2A of the main body case 2, and as shown in FIG. 5 is engaged with the engagement opening 4B, that is, the lid 4 is locked. In this state, the detection device 7 generates an oscillation frequency of about 25 kHz, and detects that the lid 4 is closed and the lock member 5 is locked. The state in which the one end portion 5A of the lock member 5 is engaged with the engagement opening 4B is held by the pin 5C of the lock member 5 being engaged with the heart-shaped protrusion 13A of the heart cam 13.

  Next, when the electromagnetic plunger device 3 is operated in the state of FIG. 26, the pin 5C of the lock member 5 is disengaged from the heart-shaped protrusion 13A of the heart cam 13, so that the plunger lever 11 is moved leftward by the return spring 12. It is done. When the plunger lever 11 moves in the left direction, the operation lever 10 rotates in the clockwise direction, so that the lock member 5 moves in the direction entering the opening 2A of the main body case 2 and the one end portion 5A of the lock member 5 is engaged. It will be in the state which left | separated from the joint opening 4B, ie, the state which the lock | rock of the lid | cover 4 was cancelled | released. As shown in FIG. 27, the oscillation frequency of the oscillator 18 of the detection device 7 is amplified by an amplifier circuit 18A, and the amplified frequency is counted by a microcomputer 18B installed on the device side. When the microcomputer 18B counts a frequency of about 25 kHz, the electromagnetic plunger device 3 is connected to the power source 18C, and the plunger member 3B is attracted to the electromagnetic coil portion 3A side.

  As described above, the oscillator 18 formed by the winding coil 15 whose inductance changes by opening and closing of the lid 4 provided in the device and the reciprocating motion of the plunger member 3B and the capacitor 16 connected in parallel to the winding coil 15 is provided. Since the opening / closing state of the lid 4 and the locking / unlocking state of the lid 4 by the lock member 5 are detected, the reed switch for detecting the opening / closing state of the lid 4 and the lock member 5 are used as in the prior art. There is no need to provide two types of switches, a switch comprising a pair of contacts and contact pieces for detecting the lock of the lid 4 and the unlocked state.

  According to the lid locking device 1 of the above-described embodiment, the operation lever is rotated around the support shaft body 8A provided on the inner bottom of the storage recess 8D located below the plunger member 3B. 5 is sufficient, and one end portion 5A of the lock member 5 can be sufficiently projected from the opening 2A of the main body case 2.

  According to the lid lock device 1 of the above-described embodiment, the lock member 5 is slid on the slide base 8H and the lower opening 8K by pushing the lock member 5 between the pair of holding claws. Can be easily held, and when the lock member 5 enters the main body case by the operation of the operation lever 10 or the return spring 12, the entry is blocked by the blocking body 8G. Do not go inside more than necessary.

  According to the detection device 7 of the above-described embodiment, when the detection device 7 breaks down, the entire lid lock device 1 need not be replaced, but only the failed detection device 7 needs to be replaced. 7 can be removed from the lid lock device 1 and repaired and inspected

  According to the lid lock device 1 of the above-described embodiment, the electromagnetic plunger device 3 can be connected to the power source by inserting a connection plug (not shown) into the electromagnetic coil terminal piece 3C, and the detection device. If a connection plug (not shown) is inserted from the terminal piece lead opening, the oscillation circuit terminal pieces 17 and 17A can be connected to the power supply circuit, and the electromagnetic coil terminal piece 3C and the oscillation circuit Since the terminal pieces 17 and 17A are extended in the same direction, the connecting plug (not shown) can be easily inserted and the connecting plug (not shown) can be wired. it can.

  Next, an embodiment in which the lid lock device 1 having the above configuration is used in a washing machine will be described with reference to FIGS.

  The washing machine shown in FIGS. 28 to 32 is a fully automatic washing machine 19. As shown in FIG. 28, the fully automatic washing machine 19 includes a steel plate outer frame 20, a water receiving tank 22 that is supported by a suspension rod 21 in the outer frame 20 by vibration proofing, and a water receiving tank 22. A dehydrating tank 23 provided rotatably and a stirring blade 24 provided at the inner bottom of the dehydrating tank 23 are provided. A synthetic resin top cover 28 is fixed to the upper opening of the outer frame 20. The top cover 28 is provided with a clothing insertion opening 25 at the center and a storage recess 27 for installing the control board 26 near the periphery. In the upper part of the outer frame 20, a water supply valve 29 and a water supply hose 30 for supplying water from a water supply or the like into the water receiving tank 22 are provided. A drain valve 31 and a drain hose 32 for draining the water in the water receiving tank 22 are provided at the bottom of the water receiving tank 22. A motor 33 and a clutch mechanism 34 serving as a driving source for rotating the dewatering tank 23 or the stirring blade 24 are provided at the bottom of the water receiving tank 22. An air reservoir chamber 35 that communicates with a water level detection mechanism for detecting the water level of the water stored in the water receiving tank 22 is provided at a lower portion of the side surface of the water receiving tank 22.

  A clothing input port lid 36 made of synthetic resin is provided at the clothing input port 25 of the top cover 28 so as to be freely opened and closed. In the vicinity of the control board 26 of the top cover 28, as shown in FIG. A storage cover 37 made of synthetic resin for covering the control board 26 and the lid lock device 1 is detachably attached to the top cover 28. As shown in FIG. 30, the clothing inlet cover 36 is provided with a magnetic piece 38 made of an iron piece or the like. As shown in FIG. 31, the clothing inlet lid 36 is provided with a locking opening 39 through which the one end portion 5 </ b> A of the lock member 5 of the lid lock device 1 enters and exits. On the side of the top cover 28 and the storage cover 37, an entrance / exit opening 40 through which the one end portion 5 </ b> A of the lock member 5 enters / exits is provided so as to face the locking opening 39.

  In the fully automatic washing machine 19 having the above-described configuration, the clothes inlet cover 36 is opened and the clothes are put into the dewatering tub 23. At the time of washing, the drain valve 31 is closed and the water supply valve 29 is opened. Thus, the water is washed in the water receiving tank 22 by rotating the stirring blade 24 after the water is accumulated up to a predetermined water level. When the washing of the clothes is finished, the rotation of the stirring blade 24 is stopped and the drain valve 31 is opened to drain the water in the water receiving tub 22 and the clutch mechanism 34 is switched so that the dewatering tub 23 can be rotated at high speed. To do. At the time of dehydration, the water contained in the clothes in the dewatering tank 23 is separated and drained by rotating the dewatering tank 23 at a high speed with the drain valve 31 opened. Therefore, during the dehydration, it is dangerous to open the clothes insertion opening cover 36 and put in clothes, so that the clothes insertion opening cover 36 is locked and opened by the lid lock device 1. I am trying not to. During loading and washing of clothes, the lock of the clothes loading opening cover 36 by the lid locking device 1 is released so that the clothes loading opening cover 36 can be opened.

  The operation of the lid lock device 1 attached to the fully automatic washing machine 19 will be described as follows based on FIG. That is, when the garment insertion port lid 36 is not locked by the lid locking device 1 and the garment is being put into the dehydration tank 23 with the clothing insertion port lid 36 opened, the lid The detecting device 7 of the locking device 1 generates an oscillation frequency of about 24 kHz, and controls that the clothing insertion opening cover 36 is in the open state and the lock member 5 is in the unlocked state (see FIG. 32). Detection is performed by a washing machine control microcomputer mounted on the substrate 26.

  Next, with the lid lock device 1 not being locked by the lid for clothing entry 36 and the lid for clothing entry 36 being closed, the stirring blade 24 is rotated to wash the clothing with water. Since the magnetic piece 38 is brought close to the winding coil 15 of the coil case 14 in the detection device 7 (see FIG. 25), the detection device 7 of the lid lock device 1 has an oscillation frequency of about 23 kHz. It is generated, and the washing machine control microcomputer mounted on the control board 26 detects that the clothing insertion opening lid 36 is closed and the lock member 5 is unlocked (see FIG. 32).

  Next, when the lid 36 for the clothes slot is locked by the lid locking device 1 and the clothes slot lid 36 is closed, the dehydration tank 23 is rotated at a high speed to dehydrate the clothes. The magnetic body piece 38 is brought into a state of being close to the winding coil 15 of the coil case 14 in the detection device 7 and the tip of the plunger member 3B is separated from the winding coil 15 of the detection device 7 (FIG. Therefore, the detection device 7 of the lid locking device 1 generates an oscillation frequency of about 25 kHz to control that the lid 4 is closed and the lock member 5 is locked (see FIG. 32). Detection is performed by a washing machine control microcomputer mounted on the substrate 26.

  In the above washing machine, the open / close state of the clothing inlet lid 36 can be achieved by a single detection device 7 without using two types of switches, ie, a reed switch and a switch consisting of a contact and a contact piece as in the prior art. In addition, since the lid lock device 1 that can detect the lock of the clothing inlet cover 36 by the lock member 5 and the unlocked state thereof is used, a washing machine that achieves low cost and high reliability is obtained.

  In the embodiment described above, the magnetic material piece 38 made of an iron piece or the like is provided on the clothing inlet cover 36, but the present invention is not limited to this. When the clothing input lid 36 is formed of a magnetic material such as an iron plate, the magnetic piece 38 need not be provided.

It is a principal part perspective view of the lid locking device in the state where an example of the present invention was shown and the upper case was removed. It is a side view of a lid locking device in the state where an example of the present invention was shown and the upper case was attached to the lower case. FIG. 3 is a cross-sectional view of a main part of the lid locking device in a state where the upper case is attached to the lower case according to the embodiment of the present invention. It is AA sectional drawing of FIG. 1 is a plan view of a plunger member in an electromagnetic plunger device according to an embodiment of the present invention. FIG. 3 is a plan view of the lock member 5 in the lid lock device according to the embodiment of the present invention. It is BB sectional drawing of FIG. FIG. 3 is a plan view of an operation lever in the driven mechanism according to the embodiment of the present invention. It is CC sectional drawing of FIG. It is a top view of the plunger lever in a driven mechanism which shows one Example of this invention. It is DD sectional drawing of FIG. It is a top view of the heart cam in a driven mechanism which shows one Example of this invention. It is EE sectional drawing of FIG. 1 is a front view of a detection device in a lid lock device according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of a main part of a detection device in the lid lock device according to an embodiment of the present invention. FIG. 2 is a plan view of a coil case in the detection device according to an embodiment of the present invention. It is FF sectional drawing of FIG. FIG. 3 is a plan view of an oscillation circuit terminal piece in the detection device according to the embodiment of the present invention. It is a top view of the lower case in a main body case, showing one example of the present invention. It is GG sectional drawing of FIG. It is a side view of the lower case in a main body case, showing an embodiment of the present invention. It is a top view of the upper case in a main body case, showing one example of the present invention. It is a side view of FIG. FIG. 5 is an operation explanatory view of a state where the lid is opened and the lock member is not protruded from the opening of the main body case (unlocked state) according to the embodiment of the present invention. FIG. 5 is an operation explanatory view of a state where the lid is closed and the lock member does not come out of the opening of the main body case (unlocked state), showing an embodiment of the present invention. FIG. 5 is an operation explanatory diagram of a state where the lid is closed and the lock member is out of the opening of the main body case (lock state) according to the embodiment of the present invention. FIG. 3 is a circuit diagram of a main part related to the oscillator of the detection device according to the embodiment of the present invention. 1 shows an embodiment of a washing machine of the present invention and is a longitudinal sectional view of an essential part. It is a top view of the state which showed one Example of the washing machine of this invention, and removed the storage cover from the top cover. FIG. 4 is an enlarged plan view of a main part in a state where the embodiment of the washing machine of the present invention is shown and the storage cover is removed from the top cover. FIG. 3 is an enlarged cross-sectional view of a main part of a lid lock device housing portion, showing an embodiment of the washing machine of the present invention. It is a related figure of the oscillation frequency of the detection device at the time of using a detection device for the washing machine of the present invention, and a washing process.

Explanation of symbols

1 Lid lock device 2 Body case
2A Opening 3 Electromagnetic plunger device 3A Electromagnetic coil part 3B Plunger member 3B-1 Fitting hole 3C Electromagnetic coil terminal piece 4 Lid 4A Magnetic body piece 4B Engagement opening 5 Locking member 5A One end part 5B Cylindrical protrusion 5C Pin 5D With pin Spring for force 5E Fitting groove 6 Drive mechanism 7 Detection device 8 Lower case 8A Support shaft body 8B Horizontal long groove 8C Storage step
8D Storage recess 8E Support wall 8E-1 Elongated notch 8F Holding claw 8G Blocking body 8H Sliding base 8K Lower opening 8L Electromagnetic plunger device terminal piece drawer opening 8M Detection device opening 8N Engagement member notch 8P For detection device Terminal piece drawer opening 8S Oscillator circuit terminal piece partition wall 8T Mounting piece 9 Upper case 9A Storage space 9C Upper opening 9D Electromagnetic plunger device terminal piece drawer opening 9E Detector opening 9F Escape groove 9G Locking claw 9H For detector Support claw 10 Operation lever 10A Fitting long hole 10B Fitting circular hole 10C Engaging member 11 Plunger lever 11A Protruding body 11B Flange 11C Recessed part 11D Engaging notch 12 Return spring 13 Heart cam 13 Heart-shaped protrusion 13B, 13C, 13D, 13E, 13F Guide groove 14 Coil case 14A Tube part 14B Terminal assembly Attached part 14C A pair of guide bosses 14D A pair of locking grooves 15 Winding coil 16 Capacitor 17, 17A Oscillator circuit terminal piece 17-1 Press-fit notch 17-2 Fixed piece 17-3 Fixed notch 17-4 Retaining prevention Notch 17-5 Locking piece 18 Oscillator 19 Fully automatic washing machine 20 Outer frame 22 Water receiving tank 23 Dewatering tank 24 Stirring blade 25 Clothes input port 26 Control board 27 Storage recess 28 Top cover 36 Clothing input port cover 37 Storage cover 38 Clothes piece cover magnetic body piece 39 Locking opening 40 Entrance / exit opening

Claims (11)

  A main body case, an electromagnetic plunger device comprising an electromagnetic coil portion and a plunger member, a lock member for locking and unlocking a lid provided on the device, and a reciprocating movement of the plunger member of the electromagnetic plunger device. And a follower mechanism for reciprocating the lock member, and reciprocating the plunger member of the electromagnetic plunger device to cause one end of the lock member to protrude and retract from the opening of the main body case. The open / close state of the lid and the lock member are formed by an oscillator formed by a winding coil whose inductance is changed by opening / closing of the lid provided in the device or a reciprocating motion of the plunger member, and a capacitor connected in parallel to the winding coil. Provided with a detecting device for detecting the state of locking and unlocking the lid by Lid locking device to be.     The electromagnetic plunger device, the lock member, and the driven mechanism are accommodated in the main body case so that the reciprocating direction of the plunger member of the electromagnetic plunger device and the reciprocating direction of the lock member are substantially the same direction. The lid locking device according to claim 1, wherein the detection device is arranged so that a distal end portion of a plunger member of the electromagnetic plunger device is fitted in the winding coil.   The detection device includes a coil case that can be mounted on the same side surface as the side surface where the one end portion of the lock member of the main body case protrudes and retracts, and a winding coil wound around the outer periphery of the cylindrical portion protruding from the inner bottom of the coil case A capacitor installed in the coil case adjacent to the winding coil, and two oscillation circuit terminal pieces extending in a vertical direction from the inner bottom of the coil case. In the terminal piece, the winding coil and the capacitor are connected so that an LC oscillation circuit of the winding coil and the capacitor is formed, and the plunger member is attracted to the electromagnetic coil portion. When the distal end portion of the plunger member is positioned outside the winding coil and the plunger member is not attracted to the electromagnetic coil portion, the winding coil Inward, the lid locking device according to claim 2, characterized in that so as to position the distal end portion of the plunger member.   The main body case includes a lower case and an upper case detachably provided on the lower case, and the electromagnetic plunger device, the lock member, the driven mechanism, and the detection device are detachably mounted on the lower case side. In addition, a storage recess is formed in the bottom of the lower case so that the detection device is stored and the two oscillation circuit terminal pieces of the detection device can extend along the longitudinal direction of the plunger member. The two electromagnetic coil terminal pieces connected to the electromagnetic coil portion of the electromagnetic plunger device are extended in the same direction as the oscillation circuit terminal piece. Lid lock device.   The follower mechanism has a fitting elongated hole formed on one end side to be fitted to a cylindrical projecting body formed on the lower surface of the lock member, and a support projecting from the inner bottom of the lower case on the other end side. An operation lever having a fitting circular hole to be fitted to the shaft body, a protrusion that fits into the fitting hole provided in the plunger member on one end side, and a lower case on the other end side A plunger lever provided with a flange that fits in a laterally long groove formed to extend in the longitudinal direction of the plunger member on the inner wall of the plunger, and urges the plunger lever in a direction away from the electromagnetic coil portion side of the electromagnetic plunger device The return spring and a heart cam provided on the inner bottom of the lower case located below the lock member so as to be slidable in a direction perpendicular to the reciprocating direction of the lock member, On the bottom of the member The tip of the pin provided on the formed cylindrical protrusion slides on the stepped surface of the heart cam so that one end of the lock member is held out of the opening of the main body case and the holding is released. And an engaging member extending from the other end side of the operating lever toward the lateral groove is engaged with an engaging notch formed in a flange of the plunger lever. Or the lid locking device of 4.   A pair of holding claws that detachably and slidably hold the lock member and a blocking body that prevents the lock member from entering the main body case excessively are provided on the inner bottom of the lower case. The lid locking device according to claim 4 or 5, wherein the lid locking device is integrally formed.   The heart cam is disposed on the inner bottom of the lower case so that the lock member can slide in a direction perpendicular to the reciprocating direction of the lock member, and the tip of the pin slides on the stepped surface of the heart cam. 7. The lid lock device according to claim 5, wherein the lock member is held in a state where one end portion of the lock member is protruded from the opening of the main body case, and the hold is released.   The lid lock according to any one of claims 5 to 7, wherein the storage recess is formed in an inner bottom portion of the lower case located below the plunger member, and the support shaft body is formed in the inner bottom of the storage recess. apparatus.   A coil case, a winding coil wound around an outer periphery of a cylindrical portion projecting from the inner bottom of the coil case, a capacitor installed in the coil case adjacent to the winding coil, and the inner bottom of the coil case And two oscillation circuit terminal pieces extending in the vertical direction, and the winding coil and the LC oscillation circuit of the capacitor are formed on the two oscillation circuit terminal pieces. A detection device for connecting a capacitor, wherein the detection device is detachably attached to a body case of the cover lock device.   A lid for a clothing input port that opens and closes a clothing input port provided in an outer frame; and a lid lock device that enables locking and unlocking of the clothing input port lid, A body case, an electromagnetic plunger device comprising an electromagnetic coil portion and a plunger member, a lock member that enables locking and unlocking of the lid for clothing input port, and a reciprocating motion of the plunger member of the electromagnetic plunger device And a follower mechanism for reciprocating the lock member in conjunction with the reciprocating mechanism, and reciprocating the plunger member of the electromagnetic plunger device to cause the end of the lock member to protrude and retract from the opening of the body case. In the washing machine, wherein the clothes opening cover is provided with a locking opening through which one end portion of the locking member enters and exits. Depending on the open / close state of the cover for clothing input and the lock member, an oscillator formed by a winding coil whose inductance is changed by opening / closing of the plunger member and a reciprocating motion of the plunger member and a capacitor connected in parallel to the winding coil A washing machine, comprising: a detection device that detects a lock of the clothing inlet lid and a unlocked state thereof. A clothing input port lid that opens and closes a clothing input port that opens above a dewatering tank provided in the outer frame, and a lid lock device that enables locking and unlocking of the clothing input port lid The lid lock device includes at least a main body case, an electromagnetic plunger device including an electromagnetic coil portion and a plunger member, a lock member that enables locking and unlocking of the lid for clothing input port, and the electromagnetic A follower mechanism for reciprocating the lock member in conjunction with reciprocation of the plunger member of the plunger device, and reciprocating the plunger member of the electromagnetic plunger device, so that one end of the lock member is attached to the body case. In the washing machine that is caused to appear and disappear from the opening, the detection device includes a coil case that can be attached to the main body case, and a protrusion from the inner bottom of the coil case. A winding coil wound around the outer periphery of the cylindrical portion, a capacitor installed in the coil case adjacent to the winding coil, and two oscillation circuits extending vertically from the bottom of the coil case The winding coil and the capacitor are connected so that the LC oscillation circuit of the winding coil and the capacitor is formed on the terminal pieces for the two oscillation circuits. When the plunger member is attracted to the electromagnetic coil portion, the distal end portion of the plunger member is positioned outside the winding coil, and when the plunger member is not attracted to the electromagnetic coil portion, the winding coil When the distal end portion of the plunger member is positioned inside, and when the lid body is closed, the winding is made by the magnetic portion (iron piece) provided on the clothing inlet lid side. As the inductance of yl changes, a washing machine for causing close the magnetic portion of the garment inlet lid side to said coil case.

Images