JP2012041711A - Electromagnetic device and operation regulating device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic device capable of miniaturizing the entire device and reducing a power consumption cost, and an operation regulating device using it.SOLUTION: The electromagnetic device includes: a base part 20; a coil part 22 fixed to the base part 20, for generating a magnetic flux by energizing; a core part 24 movably supported to the base part 20 and magnetized by energizing the coil part 22; an adsorption part 26 adsorbed by the core part 24 by energizing the coil part 22 and movable integrally with the core part 24; a first spring 28 for imparting elastic force in a direction of separating the core part 24 and the adsorption part 26; and a second spring 30 for imparting elastic force in a direction of abutting the core part 24 and the adsorption device 26.

Description

  The present invention relates to an electromagnetic device and an operation restriction device using the same.

  In recent years, there has been proposed an electronic key system that performs collation using an electric signal (ID code: Identification code) of a vehicle key. When the ID code included in the transmission signal from the vehicle key matches the ID code registered in advance in the vehicle transmission / reception device, the operation knob (switch switching member) of the ignition switch can be operated. Thus, the vehicle engine or the like can be started by the occupant rotating the switch switching member.

  Conventionally, as an operation restricting device for an ignition switch of a vehicle in which this type of electronic key system is adopted, a solenoid is used as an electromagnetic device, and the switch is changed from the “LOCK” position of the switch switching member by non-verification of the vehicle key. There is one provided with a lock mechanism (no-block mechanism) that prevents switching operation to the “ACC (accessory)” position (Patent Document 1).

  This locking mechanism prevents the switching operation of the switch switching member from the “LOCK” position to the “ACC” position by deenergization of the solenoid, and “ACC” from the “LOCK” position of the switch switching member by energization of the solenoid. Enables switching to a position. The solenoid includes a plunger that moves in the suction direction when energized, and a suction solenoid that has a spring that applies an elastic force to the plunger in a direction opposite to the suction direction.

JP 2002-295089 A

  The lock mechanism shown above uses a suction type solenoid as an electromagnetic device, and there is a problem that not only the whole device is increased in size but also the power consumption cost is increased.

  An object of the present invention is to provide an electromagnetic device capable of reducing the overall size of the device and reducing the power consumption cost, and an operation regulating device using the electromagnetic device.

  [1] The present invention provides a base portion, a coil portion fixed to the base portion and generating a magnetic flux by energization, a core supported movably with respect to the base portion, and magnetized by energization of the coil portion A suction portion that is attracted to the core portion by energization of the coil portion and the coil portion and can move integrally with the core portion, and a first force that applies an elastic force in a direction to separate the core portion and the suction portion. An electromagnetic device comprising: an elastic body; and a second elastic body that imparts an elastic force in a direction in which the core portion and the suction portion are brought into contact with each other.

  [2] The above [1], wherein when the coil portion is energized and the coil portion shifts to a state where magnetic flux is generated, the attracting portion is not attracted by the separated core portion. It may be an electromagnetic device described in 1.

  [3] The electromagnetic force according to [1] or [2], wherein a driving force acts on the core portion or the attracting portion in each state where the coil portion is energized or not energized. It may be a device.

  [4] In addition, the electromagnetic device according to any one of [1] to [3] and the suction portion can be separated from each other or in the contact direction, and the suction portion is in contact with the core portion. An operation knob that can be pressed and rotated independently from the suction portion in a separated state, and the second elastic body is a delay in which an elastic force is generated with a delay from the release of the pressing force Provided is an operation restricting device characterized by comprising the device.

  ADVANTAGE OF THE INVENTION According to this invention, the electromagnetic device which can achieve size reduction of the whole apparatus and reduction in power consumption cost, and the operation control apparatus using the same can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS The structure of the solenoid 10 in the initial state as an electromagnetic device which concerns on the 1st Embodiment of this invention is shown, (a) is a longitudinal cross-sectional view of the solenoid 10, (b) is in (a). It is the side view seen from A direction. It is a longitudinal cross-sectional view which shows one state after the movement of the electromagnetic device which concerns on the 1st Embodiment of this invention. It is a longitudinal cross-sectional view which shows one state after the movement of the electromagnetic device which concerns on the 1st Embodiment of this invention. The structure of the operation control apparatus which concerns on the 2nd Embodiment of this invention is shown, (a) is the case where the electromagnetic device which concerns on the 1st Embodiment of this invention is applied to the operation control apparatus of a vehicle (B) is the side view seen in the B direction in (a). It is a longitudinal cross-sectional view which shows the structural example of the delay apparatus used with the operation control apparatus which concerns on the 2nd Embodiment of this invention. It is a block diagram shown in order to demonstrate the electronic key system used with the operation control apparatus which concerns on the 2nd Embodiment of this invention. FIG. 7A is a longitudinal sectional view of the solenoid 10 in which the knob, the magnetic disk, and the core portion are integrated and moved in the B direction against the restoring force of the delay device, and FIG. 7B is the knob. FIG. 7 (c) is a longitudinal sectional view of the solenoid 10 in which only the knob returns to the previous position due to the biasing force of the first spring, and FIG. 7 (c) shows the release force of the first spring. It is the longitudinal cross-sectional view of the solenoid 10 which the knob and the magnetic disc returned together by the urging | biasing force.

(First embodiment)
(Configuration of electromagnetic device)
FIG. 1 shows a configuration of a solenoid 10 in an initial state as an electromagnetic device according to a first embodiment of the present invention, where (a) is a longitudinal sectional view of the solenoid 10 and (b) It is the side view seen from the A direction in (a).

  The solenoid 10 as an electromagnetic device is generally configured by a base part 20, a coil part 22, a core part 24, a suction part 26, a first spring 28, and a second spring 30.

  The base portion 20 is provided with a bottom portion 20a to which the coil portion 22 is fixed, and restriction portions 20b and 20c that are provided substantially vertically from both ends of the bottom portion 20a and restrict movement of the core portion 24 and the suction portion 26. Have For example, in the present embodiment, the base portion 20 is integrally formed as shown in FIG. 1 and formed of a nonmagnetic material such as a copper-based material so as not to affect the magnetic flux generated in the coil portion 22. Preferably it is done.

  The coil portion 22 is formed in a coil shape by winding a conductor in a cylindrical shape, and is configured so that the core portion 24 penetrates the center thereof, and is fixed to the bottom portion 20 a of the base portion 20. A magnetic field is generated by energizing the conductor, and a magnetic flux is generated in the core portion 24 penetrating the center.

  In the present embodiment, as shown in FIG. 1, the core portion 24 is formed in a U shape, the rod-like portion 24 b penetrates the coil portion 22, and both end portions 24 a can come into contact with the suction portion 26. ing. The core portion 24 is made of soft iron or soft magnetic material so that a magnetic flux is formed inside by the magnetic field generated in the coil portion 22. The core portion 24 is movable in the left-right direction in FIG. 1A with the rod-shaped portion 24b penetrating the coil portion 22, and is supported so as to be slidable by the base portion 20 or a member to which the base portion 20 is attached. Has been. The rod-shaped portion 24b is provided with two flange portions 32 that receive a reaction force due to an elastic force from a first spring 28 described later.

  The attracting portion 26 is a plate-like member that can come into contact with both end portions 24 a of the core portion 24, and is formed of soft iron or a soft magnetic material like the core portion 24. Moreover, like the core part 24, it can move to the left-right direction of Fig.1 (a), and is supported by the member to which the base part 20 or the base part 20 is mounted | worn so that a slide movement is possible.

  The first springs 28 are respectively provided as coil springs between the core portion 24 and the suction portion 26. Between the collar part 32 and the adsorption part 26 of the core part 24, it arrange | positions in the compressed state in the initial state, and is urging | biasing the direction which separates the core part 24 and the adsorption part 26. FIG.

  The second springs 30 are respectively provided as coil springs between the core portion 24 and the base portion 20 (20c). Between the core part 24 and the base part 20 (20c), it is arrange | positioned in the compressed state by the initial state. The second spring 30 biases the core portion 24 and the base portion 20 (20c) in a direction in which the core portion 24 and the base portion 20 (20c) are separated, thereby biasing the core portion 24 and the suction portion 26 so as to contact each other. By setting the urging force by the second spring 30 to be larger than the urging force by the first spring 28, as shown in FIG. It will be in the initial state of contact. In addition, the 2nd spring 30 is arrange | positioned between the core part 24 and the control part 20c in the state fitted by the projection part 20d formed in the control part 20c of the base part 20. FIG.

(Operation of solenoid 10)
FIG. 2 is a longitudinal sectional view showing a state after movement of the solenoid 10 as the electromagnetic device according to the first embodiment of the present invention. That is, only the core portion 24 moves in the B direction shown in FIG. 2, and the suction portion 26 is in contact with the inner side surface 20 f of the restricting portion 20 b of the base portion 20. This moving state is a case where the coil part 22 is in a non-energized state and the core part 24 is driven in the direction B shown in FIG.

  FIG. 3 is a longitudinal sectional view showing a state after movement of the solenoid 10 as the electromagnetic device according to the first embodiment of the present invention. That is, the core part 24 and the adsorption | suction part 26 have shown the state which moved to the B direction shown in FIG. This movement state is (1) when the coil portion 22 is in a non-energized state, and when the suction portion 26 is driven in the B direction shown in FIG. Is an energized state where the core portion 24 or the suction portion 26 moves in the direction B shown in FIG. 2 while the core portion 24 and the suction portion 26 are attracted.

(Operation when energized)
In the initial state, the solenoid 10 shown in FIG. 1 stops in a state in which the core portion 24 and the suction portion 26 are in contact with each other, and the suction portion 26 is in contact with the inner surface 20f of the restriction portion 20b of the base portion 20. ing. In this state, when a current is supplied to the coil unit 22 at a predetermined voltage, a magnetic field is generated, and a magnetic flux is generated in the core unit 24. By this magnetic flux, the core portion 24 and the attracting portion 26 form a closed magnetic path, and the attracting portion 26 is attracted to both end portions 24a of the core portion 24 and can move integrally.

(Operation when de-energized)
When the core portion 24 is moved in the direction B shown in FIG. 2 against the second spring 30 when the solenoid 10 is not energized, only the core portion 24 moves until it comes into contact with the tip portion 20e of the protruding portion 20d. It is movable. The suction part 26 remains in contact with the inner side surface 20f of the restriction part 20b by the first spring 28, and the suction part 26 and the core part 24 are separated from each other.

  Further, when the suction portion 26 is pressed in the direction B shown in FIG. 3 against the second spring 30, the core portion 24 moves integrally while being pressed by the suction portion 26, and the core portion 24 moves to the tip of the projection 20d. It can move until it abuts against 20e. When the pressing of the suction part 26 is stopped, the core part 24 and the suction part 26 move together in the C direction and return to the initial state.

(Effects of the first embodiment)
According to the first embodiment, it is not a conventional type of suction type solenoid having a plunger, but a holding type solenoid utilizing the adsorption of the core part and the adsorption part by a magnetic field generated by an electromagnet (coil). In the holding type, when the coil portion shifts to a state where magnetic flux is generated by energization of the coil portion, the holding portion is not attracted by the core portion in a state where the attracting portion is separated. This solenoid requires a movable cord by fixing the coil part and making both the core part and suction part movable, and controlling the suction state of the core part and suction part by energizing and de-energizing the coil part. A holding-type electromagnetic device that is not possible is possible. As a result, the entire apparatus can be reduced in size and the power consumption cost can be reduced. Moreover, it can be used as a solenoid in various configurations by combining energization / non-energization to the coil portion and acting force to the core portion and the suction portion. As one of the various configurations, a second embodiment will be described next.

(Second Embodiment)
(Configuration of operation control device)
FIG. 4 shows the configuration of the operation restriction device according to the second embodiment of the present invention. FIG. 4A shows the electromagnetic device according to the first embodiment of the present invention as a vehicle operation restriction device. (B) is the side view seen in the B direction in (a).

  The operation regulating device 100 includes a solenoid 110 as an electromagnetic device, a device base 120, a knob 140 for performing a rotation operation, a rotor 150 that is rotated by the rotation of the knob 140, and an ignition switch that rotates in conjunction with the rotation of the rotor 150. 160, and a delay device 170.

  In FIG. 4A, a solenoid 110 having a configuration equivalent to that of the solenoid 10 according to the first embodiment is placed with its base portion 20 fixed to the device base 120 of the operation restriction device 100. Here, the attracting portion 26 shown in the first embodiment is a disk-shaped magnetic disk 130. Similarly, the magnetic disk 130 is made of soft iron or soft magnetic material. The magnetic disk 130 is supported by the base portion 20 (device base 120) in a state in which it cannot rotate with respect to the rotation center D and is movable in the B direction. In addition, the same code | symbol is attached | subjected to the same structural member as 1st Embodiment. Further, instead of the second spring 30 shown in the first embodiment, a delay device 170 having a damper function and generating an elastic force with a delay is mounted.

  The core portion 24 of the solenoid 110 is supported by the base portion 20 (device base 120) so as to be rotatable with respect to the rotation center D of FIG. 4A and movable in the B direction and the C direction. The movement in the B direction is restricted by the delay device 170, and the movement in the C direction is restricted by the magnetic disk 130.

  The knob 140 is supported by the apparatus base 120 so as to be rotatable with respect to the rotation center D shown in FIG. 4A and movable in the B direction. In the knob 140, a pin 141 standing on the knob 140 and a hole 130a formed in the magnetic disk 130 are fitted with a gap. In a state where the pin 141 is fitted in the hole 130a, the knob 140 and the magnetic disk 130 are integrated, and the knob 140 cannot be rotated by the non-rotatable magnetic disk 130 (locked state). ). Further, the magnetic disk 130 can be separated from the knob 140 in the B direction. When the fitting with the pin 141 is released, the knob 140 can be rotated independently of the magnetic disk 130 (unlocked state). ).

  In the unlocked state, the knob 140 can rotate from the LOCK position shown in FIG. 4B to the ACC position, the ON position, and the START position, and can operate the ignition switch 160 of the vehicle. The knob 140 is pressed in the C direction by a spring 142 provided on the apparatus base 120 side, and returns to a predetermined rotation position so that the knob 140 is engaged with the magnetic disk 130 and the pin 141 at the LOCK position, for example. It is configured to

  The core portion 24 is supported by the base portion 20 so as to be rotatable with respect to the rotation center D and movable in the B direction. Since the other coil part 22, the 1st spring 28, and the collar part 32 are the same as that of 1st Embodiment, description is abbreviate | omitted.

  The rotor 150 is supported by the apparatus base 120 so as to be rotatable with respect to the rotation center D. The rotor 150 is configured to rotate in conjunction with the rotation of the knob 140, and this rotation rotates the connected ignition switch 160. The ignition switch 160 is a rotary switch that can be sequentially switched from the LOCK position when the vehicle is stopped to the ACC position, the engine ON position, and the engine START position.

  FIG. 5 is a longitudinal sectional view showing a configuration example of a delay device used in the operation restriction device according to the second embodiment of the present invention. The delay device 170 applies an elastic force to the core portion 24 in the same manner as the second spring 30 shown in the first embodiment, but further has a damper function to generate an elastic force with a delay.

  The delay device 170 includes a container 172, a viscous fluid 180 such as oil sealed therein, a moving unit 176 that moves while receiving resistance to the viscous fluid 180, and a moving unit 176 that is connected to the moving unit 176 and moves outside the container. And a biasing spring 178 that applies a biasing force between the load portion 174 and the container 172. A state where the load portion 174 is separated from the container 172 by the biasing spring 178 is an initial state. When a load acts on the load portion 174, the biasing spring 178 is compressed, and the load portion 174 moves in the direction of the container 172. When the load is removed, the load portion 174 moves away from the container 172 due to the restoring force of the bias spring 178. This movement is performed while the moving portion 176 receives the resistance of the viscous fluid 180. Delays more than restoration by the spring 178 alone.

  As shown in FIG. 4A, for example, the delay device 170 is mounted between the rotor 150 and the core portion 24, and the biasing spring 178 is slightly compressed in the initial state shown in FIG. Similarly to the first embodiment, by setting the urging force by the delay device 170 to be larger than the urging force by the first spring 28, an initial load is applied as shown in FIG. As a result, the core 24 and the magnetic disk 130 come into an initial state.

(Configuration of electronic key system)
FIG. 6 is a block diagram for explaining an electronic key system used in the operation restricting apparatus according to the second embodiment of the present invention. The electronic key system 50 includes a portable device 60 that is carried by a user and an in-vehicle device 70 that is mounted on an automobile, and bidirectional communication is performed between the portable device 60 and the in-vehicle device 70.

(Configuration of portable device 60)
The portable device 60 includes a portable device ECU (Electronic Control Unit: ECU) 200, a reception unit 202, a transmission unit 204, and a battery 206.

  The portable device ECU 200 includes a memory 201 that stores an ID code that is an identification number code of the portable device 60, and performs overall control of the portable device 60.

  The receiving unit 202 is connected to the portable device ECU 200 and the antenna 203. And the receiving part 202 is comprised so that the signal transmitted from the vehicle equipment 70 may be received and decoded, and it may output to portable device ECU200.

  The transmission unit 204 is connected to the portable device ECU 200 and the antenna 205. And the transmission part 204 is comprised so that the ID code from portable machine ECU200 may be encrypted and the signal of the high frequency range containing this may be transmitted.

  The battery 206 is connected to the portable device ECU 200 and serves as a power source for the portable device 60. When the battery runs out, the battery can be replaced.

  In addition, the portable device 60 functions as an immobilizer that can communicate by approaching the indoor / outdoor verification unit 500 on the in-vehicle device 70 side when the battery 206 runs out and there is no replacement battery or when the engine 610 is started. A transponder 207.

  The transponder 207 includes a power storage circuit and an electrolytic capacitor (both not shown), and a predetermined amount or more of electric power is accumulated in the electrolytic capacitor via the power storage circuit by the magnetic flux from the indoor / outdoor verification unit 500 (magnetic flux generation circuit 506). And a signal including the ID code of the memory 201 using the power as a power source.

(Configuration of in-vehicle device 70)
The in-vehicle device 70 includes a main ECU 400, an indoor / outdoor verification unit 500, and the like.

  The main ECU 400 is connected to the indoor / outdoor verification unit 500 and the engine ECU 600 and performs overall control of the in-vehicle device 70. The main ECU 400 permits or restricts the rotation of the knob 140 and the switching of the ignition switch 160 by energizing or de-energizing the solenoid 110.

  A shift position sensor (not shown) is connected to the main ECU 400. The shift position sensor detects at which position the shift lever is located, such as a drive (D position), a parking position (P position), or the like. The main ECU 400 can recognize the position of the shift lever through the shift position sensor.

  The indoor / outdoor verification unit 500 includes an authentication ECU 504, an indoor transmission / reception unit 503A, an outdoor transmission / reception unit 503B, and a magnetic flux generation circuit 506, and is connected to the main ECU 400.

  The authentication ECU 504 includes a memory 505 that stores an ID code that is an identification number code of the automobile, and authentication (verification) between the ID code included in the signal transmitted from the portable device 60 and the ID code stored in the memory 505. I do.

  The indoor transmission / reception unit 503A is connected to the indoor antenna 502A and the outdoor transmission / reception unit 503B. The indoor transmission / reception unit 503 </ b> A is configured to receive and decode the signal transmitted from the portable device 60 and output the signal to the authentication ECU 504.

  The outdoor transmission / reception unit 503B is connected to the outdoor antenna 502B, the authentication ECU 504, and the main ECU 400. The outdoor transmission / reception unit 503 </ b> B is configured to receive and decode a signal transmitted from the portable device 60 and output the signal to the authentication ECU 504.

  The magnetic flux generation circuit 506 generates a magnetic flux for supplying a power signal to the portable device 60 in an emergency such as battery exhaustion. As a result, a power signal is supplied from the magnetic flux generation circuit 506 to the portable device 60.

(Operation of operation control device)
In the operation restriction device 100, in the initial state shown in FIG. 4A, the knob 140 is in the LOCK position as shown in FIG. 4B. In this state, the knob 140 and the magnetic disk 130 are coupled by the pin 141, and the knob 140 cannot be rotated by the non-rotatable magnetic disk 130.

(Operation when ID authentication is not established)
When starting the engine 610, the user first holds the knob 140. At this time, since the automobile is parked, the shift lever is in the P position, and the knob 140 and the ignition switch 160 are in the LOCK position. Here, if the user does not have a legitimate portable device 60, the solenoid 110 is not energized because ID authentication by communication is not established.

  When the solenoid 110 is not energized, no magnetic field is generated in the coil portion 22 and the magnetic disk 130 is not attracted to the core portion 24. When the knob 140 is pushed in the B direction in this state, as shown in FIG. 7A, the knob 140, the magnetic disk 130, and the core portion 24 are integrated into the B direction against the restoring force of the delay device 170. Moving. When the pushing force to the knob 140 is released from this state, the magnetic disk 130 is not attracted to the core portion 24 and thus returns together with the knob 140 by the urging force of the first spring 28. On the other hand, the core unit 24 returns slowly due to the delayed restoring force urged by the delay device 170, so that the state shown in FIG.

  From the above-described operation, when the solenoid 110 is not energized, the knob 140 and the magnetic disk 130 are always integrated, and the knob 140 cannot be rotated by the non-rotatable magnetic disk 130. Therefore, the knob 140 cannot be rotated and cannot be rotated from the LOCK position to the ACC position.

(Operation when ID authentication is established)
When starting the engine 610, the user first holds the knob 140. At this time, since the automobile is parked, the shift lever is in the P position, and the knob 140 and the ignition switch 160 are in the LOCK position. Here, when the user owns the regular portable device 60, ID authentication by communication is established, and the solenoid 110 is energized.

  When the solenoid 110 is energized, a magnetic field is generated in the coil portion 22, so that the magnetic disk 130 is attracted to the core portion 24. When the knob 140 is pushed in the B direction in this state, as shown in FIG. 7A, the knob 140, the magnetic disk 130, and the core portion 24 are integrated into the B direction against the restoring force of the delay device 170. Moving. When the pushing force to the knob 140 is released from this state, since the magnetic disk 130 is attracted to the core portion 24, only the knob 140 is returned first by the urging force of the first spring 28, as shown in FIG. 7B. It will be in such a state. On the other hand, the magnetic disk 130 attracted to the core portion 24 slowly returns to the C direction by the delayed restoring force urged by the delay device 170.

  From the above-described operation, when the solenoid 110 is energized, the knob 140 can be rotated independently of the magnetic disk 130 in the state shown in FIG. 7B, that is, in the state where the knob 140 and the magnetic disk 130 are separated. It becomes a state. Accordingly, the knob 140 can be rotated, and the knob is released, and the rotation from the LOCK position to the ACC position can be performed. Furthermore, the operation from the ACC position to the ON position, the START position, and the like can be performed, and the vehicle can be turned on, the engine can be started, and the like by the switch operation of the ignition switch 160.

(Effect of the second embodiment)
In the second embodiment, the solenoid shown in the first embodiment is applied to an operation restricting device. Holding type that does not require a movable cord by fixing the coil part and making both the core part and magnetic disk movable, and controlling the adsorption state of the core part and magnetic disk by energizing and de-energizing the coil part This makes it possible to use an operation restricting device using a solenoid. As a result, the entire apparatus can be reduced in size and the power consumption cost can be reduced. This operation restricting device can restrict the rotation operation of the knob for rotating the ignition switch, and can be used as a so-called no-block device. It can also be used as an interlock device that restricts the operation of rotating the knob from the ACC position to the LOCK position in the reverse direction, and a single electromagnetic device can be used to realize a knock-block device and an interlock device. In addition, it is possible to provide an operation restriction device capable of reducing the power consumption cost.

  The present invention is not limited to the above-described embodiment, and can be implemented in various modes without departing from the gist thereof. For example, although the case where it applied to a motor vehicle was demonstrated, this invention is not limited to this, It can apply widely also to other apparatuses.

  DESCRIPTION OF SYMBOLS 10 ... Solenoid, 20 ... Base part, 20a ... Bottom part, 20b ... Restriction part, 20c ... Restriction part, 20d ... Protrusion part, 20e ... Tip part, 20f ... Inner side surface, 22 ... Coil part, 24 ... Core part, 24a ... Both ends, 24b ... rod-like part, 26 ... adsorption part, 28 ... first spring, 30 ... second spring, 32 ... collar part, 50 ... electronic key system, 60 ... portable device, 70 ... in-vehicle device, 100 ... operation restriction 110, solenoid, 120, device base, 130 ... magnetic disk, 130a ... hole, 140 ... knob, 141 ... pin, 142 ... spring, 150 ... rotor, 160 ... ignition switch, 170 ... delay device, 172 ... container DESCRIPTION OF SYMBOLS 174 ... Load part, 176 ... Moving part, 178 ... Energizing spring, 180 ... Viscous fluid, 201 ... Memory, 202 ... Reception part, 203 ... Antenna, 204 ... Transmission part, 205 ... A Tena, 206 ... Battery, 207 ... Transponder, 500 ... Indoor / outdoor verification unit, 502A ... Antenna, 502B ... Antenna, 503A ... Indoor transmission / reception unit, 503B ... Outdoor transmission / reception unit, 505 ... Memory, 506 ... Magnetic flux generation circuit, 610 …engine

Claims (4)

A base part;
A coil part fixed to the base part and generating magnetic flux by energization;
A core part supported movably with respect to the base part and magnetized by energization of the coil part;
An adsorbing part that is adsorbed to the core part by energization of the coil part and is movable integrally with the core part;
A first elastic body that applies an elastic force in a direction in which the core portion and the adsorption portion are separated from each other;
A second elastic body for applying an elastic force in a direction in which the core portion and the suction portion are brought into contact with each other;
An electromagnetic device comprising:   2. The electromagnetic wave according to claim 1, wherein when the coil portion is energized and the coil portion shifts to a state where magnetic flux is generated, the attracting portion is not attracted by the separated core portion. apparatus.   3. The electromagnetic device according to claim 1, wherein a driving force acts on the core portion or the attracting portion in each state of energization or non-energization of the coil portion. An electromagnetic device according to any one of claims 1 to 3,
An operation that can be separated from the suction portion in the separation direction or the contact direction, can be pressed in a direction in which the suction portion is brought into contact with the core portion, and can be rotated independently from the suction portion in a separated state. A knob,
The operation restricting device, wherein the second elastic body includes a delay device that generates an elastic force with a delay from the release of the pressing force.

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