JP2016071627A - Electromagnetic actuator and input device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic actuator used by being incorporated into input devices or the like of various kinds of electronic apparatuses and an input device using the electromagnetic actuator, which can efficiently save electric power.SOLUTION: A plurality of first friction plates 42 subjected to a rotation regulation in the rotational direction of a rotation axis 90 and movable on the thickness side is arranged overlapping with a plurality of second friction plates 46 co-rotationally engaged with the rotation axis 90 movable to the thickness side on a case 30 having a cylindrical part 20 as a storage part. Further, the first friction plate 42 or the second friction plate 46 in a close contact with the movable member 50 is depressed by movably arranging the electromagnetic movable member 50 in the axial direction of the rotation axis 90 and putting the case 30 and the movable member 50 into a suction state by the magnetic flux generated on current application to a coil 65 and shifting a gap between the first friction plate 42 and the second friction plate 46 into a close contact state, thereby constituting an electromagnetic actuator 10 or an input device 100 using the electromagnetic actuator.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electromagnetic actuator used by being incorporated in an input device or the like for an input operation unit of various electronic devices, and an input device using the same.

  An input device is mounted on an input operation unit of various electronic devices, and a joystick type is known as one of the input devices.

  The joystick-type input device is usually configured to be able to tilt an operation shaft that is upright at a neutral position.

  When the operating shaft is tilted, the two gimbal members engaged with the operating shaft rotate according to the operated tilt angle and tilt direction, and the rotation state of each gimbal member corresponds. Is transmitted to each detection element. Accordingly, a predetermined output corresponding to the two detection elements is obtained, and the tilt angle and tilt direction of the operation shaft can be detected based on these outputs.

  In Patent Document 1 and Patent Document 2, a motor and gears are incorporated in a joystick type input device in advance, and the motor is rotated during the tilting operation on the operation shaft, and the rotational force of the motor is operated. Proposals have been made for a configuration in which a reaction force is transmitted to the shaft.

Special table 2003-525490 gazette JP 2003-335192 A

  However, when a conventional motor or gear is previously incorporated in a joystick type input device, the motor is rotated in order to obtain a reaction force during operation, and thus there is a problem that power consumption by the motor is large.

  The present invention solves such a conventional problem, and can be incorporated into a joystick type input device or the like, and is more reactive to the operation shaft or the like of the input device while saving power than that using a motor. It is an object of the present invention to provide an electromagnetic actuator having a configuration and an input device using the same.

  In order to achieve the above object, an electromagnetic actuator according to the present invention is provided with a case having a storage portion, a rotary shaft inserted into the storage portion, and a storage portion, and the rotation is restricted in the rotation direction of the rotary shaft. A plurality of first friction plates that are movable in the axial direction of the rotating shaft, and a plurality of first friction plates that are arranged in the storage portion so as to be movable in the axial direction so as to overlap the first friction plates and engage with the rotating shaft in a rotatable manner. Two friction plates, a first friction plate and the second friction plate are sandwiched between the case and a movable member made of a magnetic material disposed so as to be movable in the axial direction, and between the case and the movable member when energized. In the first state in which the coil is attracted and the coil is not energized, the movable member is positioned away from the case. In the second state in which the coil is energized, the case and the movable member are in the attracted state. The movable member pushes the first friction plate and the second friction plate into the first friction plate. And configured to shift the second friction plates into close contact.

  That is, in the suction state between the case and the movable member, friction can be generated between the first friction plate and the second friction plate, and the rotation of the rotating shaft is regulated by this frictional force.

  The input device using the electromagnetic actuator according to the present invention has a configuration in which a rotation shaft is provided on a gimbal member engaged with an operation shaft arranged to be tiltable, and the rotation shaft is combined with the electromagnetic actuator.

  Thus, with the electromagnetic actuator and the input device using the electromagnetic actuator, friction can be generated between the first friction plate and the second friction plate by the magnetic flux generated by energization of the coil, and this frictional force is rotated. This can be realized as a reaction force in the rotational direction of the shaft. For this reason, it has the effect that power saving can be achieved rather than what uses a motor and makes it directly the reaction force to the rotation direction of a rotating shaft.

  According to the present invention, an electromagnetic actuator that can be incorporated into a joystick-type input device or the like and that is configured to apply a reaction force to the operation shaft or the like of the input device while saving power compared to a device using a motor, and the use thereof An advantageous effect is obtained that an input device can be obtained.

The top view of the electromagnetic actuator by embodiment of this invention Exploded perspective view Side view from the front Side view from the rear The figure which shows the combined state of the 1st friction plate which is the principal part, and a 2nd friction plate External perspective view of an input device incorporating the electromagnetic actuator Cross section of the input device Exploded perspective view of the input device Exploded perspective view from below of the input device Top view of the input device with the first housing removed 10 is a perspective view showing the angle in the state of FIG.

  An electromagnetic actuator and an input device using the same according to the present invention will be described below with reference to the drawings.

(Embodiment)
1 is a top view of an electromagnetic actuator according to an embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, FIG. 3 is a side view seen from the front, FIG. 4 is a side view seen from the rear, and FIG. It is a figure which shows the combination state of the 1st friction plate which is a part, and a 2nd friction plate. 6 to 11 related to the input device configured using the electromagnetic actuator according to the embodiment of the present invention will be described in detail later.

  First, an electromagnetic actuator 10 according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 to 5, the electromagnetic actuator 10 includes a magnetic case 30 having a cylindrical portion 20 as a storage portion, a plurality of first friction plates 42 disposed in the cylindrical portion 20, and a first friction plate 42. A second friction plate 46. Further, the movable member 50 made of a magnetic material, which is located adjacent to the first friction plate 42 located at the foremost position in the cylindrical portion 20 and is movably arranged toward the case 30 side, is attached to the case 30. And a coil 65 with a bobbin 60 and a magnetic rod 70 inserted into the coil 65 and fixed to the movable member 50.

  The case 30 is integrally provided with a cylindrical tube portion 20 at a central position of a substantially rectangular flat plate portion 31. The plate portion 31 provided with the tube portion 20 is a concentric through hole. In addition, coil holding portions 32 provided in a cylindrical shape are respectively provided at the left and right positions of the flat plate portion 31 with the cylindrical portion 20 as the center. Furthermore, the side edge part of the flat plate part 31 is provided with an engaging part 33 that is formed to protrude laterally in a cross shape. In addition, although the material of case 30 consists of SUS430, if it is a magnetic body, iron etc. may be sufficient.

  The hole of the case 30 has a first portion at the front and a second portion at the rear.

  The 1st part of a hole is comprised in the front position of the cylinder part 20, and the internal diameter is formed circularly. The cylinder portion 20 is provided with two restriction grooves 22. One regulation groove 22 is provided at each symmetrical position. Each regulation groove 22 has a rectangular shape with the same width and a front opening extending forward.

  A plurality of first friction plates 42 and second friction plates 46 are arranged in the first portion of the hole.

  The first friction plate 42 is substantially circular with a rotation prevention protrusion 42A that is slightly narrower than the groove width of the restriction groove 22 and protrudes outward, and is provided with a large-diameter hole 42B at the center. Is provided. The large-diameter hole 42B is preferably circular, but may be formed in a shape that does not hinder the rotation of the rotating shaft 90 described later. The material of the first friction plate 42 is a thin plate such as copper.

  The second friction plate 46 is a circular member having substantially the same size as the circular portion of the outer shape of the first friction plate 42. The outer shape of the second friction plate 46 may be a shape that is not subject to rotation restriction on the inner wall of the first portion in the hole of the case 30. The material of the second friction plate 46 is a thin plate such as a SUS plate. The material of the first friction plate 42 and the second friction plate 46 is not limited to the above-described copper and SUS, but other than these, aluminum, ceramic, resin, paper, etc., or a composite material thereof may be used. Also good.

  The second friction plate 46 is provided with a deformed hole 46B at the center. As shown in FIGS. 2 and 5, the deformed hole 46 </ b> B has a shape obtained by cutting off both sides of a circle so as to be line-symmetric with parallel straight lines. The deformed hole 46B only needs to have a shape in which the second friction plate 46 engages and rotates when a rotation shaft 90 described later rotates, and may be, for example, a substantially oval shape.

  And the 1st friction board 42 and the 2nd friction board 46 are distribute | arranged alternately so that it may overlap in order in the cylinder part 20 extended along the front-back direction (refer FIG. 5). Each first friction plate 42 is arranged in the case 30 so that the two anti-rotation protrusions 42 </ b> A are positioned in the corresponding restriction grooves 22. The number of sheets to be overlapped may be set as appropriate according to the required reaction force, etc., but the total of the two types is about 10 to 30 sheets, and about 20 sheets may be used as a guide.

  The first friction plate 42 and the second friction plate 46 are arranged to be movable in the front-rear direction, which is the thickness direction. In other words, it arrange | positions so that a movement is possible along the axial direction of the rotating shaft 90 mentioned later. If the first friction plate 42 does not rotate as in this configuration, the first friction plate 42 is located at the foremost position of the first portion of the hole, and the first friction plate 42 is also located at the most rear position. Although the arrangement state in which the plate 42 is located is preferable, the arrangement order is not limited.

  The rear second portion of the hole of the case 30 is internally threaded. From the rear side, a substantially cylindrical adjustment member 48 having a male screw on the outer periphery is screwed into the second portion and fixed so as not to move with an adhesive or the like. The adjustment member 48 is arranged to adjust the arrangement position of the plurality of first friction plates 42 and the second friction plates 46 that are overlapped with the front end surface contacting the first friction plate 42 at the rearmost position by screwing. doing. The adjustment member 48 is not limited to the screw type as long as the arrangement positions of the plurality of first friction plates 42 and the second friction plates 46 can be adjusted and the positions can be fixed after the adjustment. .

  The reason why the adjusting member 48 is made substantially cylindrical is that it has a relief portion of the rotating shaft 90. In the adjustment member 48 of the configuration, a driver groove 48A (see FIG. 4) for screwing is provided on the rear end surface, and the adjustment member 48 has a size that fits almost in the hole of the case 30 after adjustment. Yes. This is preferable because it does not affect the thickness of the product in the front-rear direction.

  A coil 65 with a bobbin 60 is attached to a cylindrical coil holding portion 32 provided at each of the left and right positions of the flat plate portion 31 of the case 30. The winding direction of the two coils 65 is the same.

  A rod-shaped body 70 made of a magnetic material formed in a columnar shape is inserted into the through hole constituting the cylindrical coil holding portion 32. The rod-shaped body 70 is made of SUS430, but may be iron or the like as long as it is a magnetic body.

  The rear end of the rod-like body 70 slightly protrudes from the rear surface of the flat plate portion 31, the E-ring 75 (see FIG. 2) holds the vicinity of the protruding rear end, and the elastic portion 81 of the leaf spring member 80 faces forward. The spring force to be biased is applied to the rod-like body 70 through the E ring 75. In addition, the shape of the elastic part 81 is not specifically limited. Further, the rod-like body 70 may be urged forward by other than the leaf spring member 80.

  The leaf spring member 80 is fixed to the flat plate portion 31 of the case 30 with a coupling member 82 such as a rivet or a tapping screw on the rear surface of the flat plate portion 31. Instead of using the coupling member 82, a fixed portion or a fixed portion may be provided on the flat plate portion 31 of the leaf spring member 80 or the case 30, and they may be directly fixed.

  In the first state in which the coil 65 is not energized, the E ring 75 attached to the rear portion of the rod-like body 70 is urged forward by the spring force of the elastic portion 81, and the E ring 75 The front surface is in contact with the rear surface of the flat plate portion 31.

  And the front part of the rod-shaped body 70 is being fixed to the movable member 50 made from a magnetic body formed in the substantially plate shape. The fixing method is not particularly limited, such as press fitting or adhesion.

  The movable member 50 is provided with a circular hole 53 concentrically penetrating the cylindrical portion 20, and a pressing portion 55 formed of a convex portion regularly arranged in a circular ring shape at the rear surface position around the circular hole 53. Is provided. All the rear end surfaces of the pressing portions 55 are provided with the same height position.

  In the first state in which the coil 65 is not energized, the movable member 50 is fixed to the rod-like body 70 that is biased forward at each of the left and right positions, and thus is separated from the case 30. Since each rod-like body 70 is in a stopped state in which the position of the rod-like body 70 is regulated forward by the E-ring 75, the movable member 50 is also separated from the case 30 and stopped. The place with the narrowest separation distance is between the front end surface of the cylindrical portion 20 of the case 30 and the rear surface of the movable member 50, and the separation distance may be set with a gap of about 0.15 mm to 0.3 mm, for example.

  And in the 1st state, the press part 55 of the movable member 50 is located in the cylinder part 20, and the rear-end surface of the press part 55 opposes the 1st friction board 42 located in the forefront. At this time, the first friction plate 42 and the second friction plate 46 are movable in the front-rear direction.

  As described above, the electromagnetic actuator 10 according to this embodiment is configured.

  Then, the electromagnetic actuator 10 has the rotating shaft 90 (see FIG. 1) from the front movable member 50 side, the circular hole 53 of the movable member 50, the large-diameter hole 42B of the first friction plate 42 arranged in an overlapping manner, and the first 2 Inserted into the deformed hole 46B of the friction plate 46 to be mounted. That is, the rotating shaft 90 is inserted into the circular hole 53 and the cylindrical portion 20 of the movable member 50 to be mounted.

  The rotating shaft 90 is preferably circular in cross section at a portion corresponding to the circular hole 53 of the movable member 50 and in the vicinity thereof.

  The rotating shaft 90 has an irregular cross section from the insertion point to the tip of the large-diameter hole 42B of the first friction plate 42 and the deformed hole 46B of the second friction plate 46 that overlap each other. The shape is similar to that of the modified hole 46B.

  The rotating shaft 90 is arranged such that the tip penetrates rearward from the first friction plate 42 arranged on the most rear side. Here, if the adjustment member 48 is substantially cylindrical, it is preferable that the tip of the rotating shaft 90 can escape.

  As described above, the electromagnetic actuator 10 according to the present embodiment is mounted with the rotation shaft 90 combined. Next, the operation will be described.

  In the first state in which the coil 65 is not energized, the first friction plate 42 and the second friction plate 46 that are alternately overlapped are in the following state, so that the rotating shaft 90 is freely rotatable.

  In other words, in the first state, the first friction plate 42 is set such that the circular diameter of the large-diameter hole 42B is larger than the portion provided in the irregular shape of the rotation shaft 90, and the rotation shaft 90 rotates. Even so, the rotation of the rotary shaft 90 is not transmitted to the first friction plate 42 through the large-diameter hole 42B. In addition, since the first friction plate 42 is disposed with the rotation preventing projection 42 </ b> A positioned in the restriction groove 22 provided in the cylindrical portion 20, even if the rotation shaft 90 is in a rotating state or the rotation shaft 90. Even in the stopped state, the rotating direction is always regulated in the rotating direction and the stopped state is maintained regardless of them.

  The second friction plate 46 has a similar shape in which the modified hole 46 </ b> B is slightly larger than the portion provided in the deformed shape of the rotating shaft 90. For this reason, when the rotating shaft 90 rotates, the rotating state is transmitted to the second friction plate 46 through the deformed hole 46 </ b> B and rotates together with the rotating shaft 90. At this time, the setting of the outer shape of the second friction plate 46 and the inner wall shape of the cylindrical portion 20 are set as described above so as not to prevent the rotation of the second friction plate 46. When the rotating shaft 90 is stopped from the rotating state, this is also transmitted to the second friction plate 46 through the deformed hole 46B, and the second friction plate 46 is stopped.

  In this first state, the first friction plate 42 and the second friction plate 46 are movable in the front-rear direction, which is the axial direction of the rotation shaft 90, and when the rotation shaft 90 rotates, Only the friction plate 46 rotates together. The first friction plate 42 and the second friction plate 46 that are alternately overlapped with each other according to the rotation operation of the second friction plate 46 may be slightly rubbed, but a large reaction force until the rotation of the rotating shaft 90 is prevented. The rotating shaft 90 is freely rotatable without being generated.

  Next, in the second state in which the coil 65 is energized, a reaction force is generated and the rotation of the rotating shaft 90 is prevented.

  When the coil 65 is energized, a magnetic flux directed in the front-rear direction is generated in the coil 65.

  For example, when a magnetic flux directed from the front to the rear is generated in the coil 65, this magnetic flux is transmitted to the flat plate portion 31 of the case 30 via the rod-shaped body 70 and reaches the cylindrical portion 20 from the flat plate portion 31. Then, the magnetic flux is transmitted in a loop returning to the rod-shaped body 70 after being transmitted to the movable member 50. If a magnetic flux is generated in the coil 65 from the front to the rear, the coil 65 is transmitted in a loop opposite to the above.

  An attractive force is generated between the movable member 50 and the case 30 that are separated from each other in accordance with the magnetic flux that is transmitted in a loop. In this configuration, the shape of the elastic portion 81 and the case 30 and the movable member 50 in the first state are set so that the suction force is greater than the sum of the spring forces of the elastic portion 81 provided on the leaf spring member 80. The separation distance is set.

  Then, with this suction force, the movable member 50 that moves along the rotation axis 90 and the case 30 approach each other, and the movable member 50 and the front end surface of the cylindrical portion 20 of the case 30 are sucked. It becomes a state. In the sucked second state, a slight gap is set between the movable member 50 and the front end surface of the cylindrical portion 20 of the case 30. The slight gap is about 0.1 mm or less. Alternatively, they may be in contact with each other as long as the formation dimensions and combination errors of various members can be managed.

  When changing from the first state to the second state, the pressing portion 55 also approaches the case 30 side relatively, abuts against the first friction plate 42 at the foremost position, and the first friction plate 42 is moved to the second state. Push backwards. As a result, in the second state, the first friction plate 42 and the second friction plate 46 that overlap each other shift to a close contact state.

  And in the 2nd state, the rod-shaped body 70 couple | bonded with the movable member 50 moved back against the spring force of the elastic part 81 provided in the leaf | plate spring member 80 via the E ring 75. It is in a state. That is, the rod-like body 70 moves rearward relative to the case 30, and the front surface of the E ring 75 is separated from the rear surface of the flat plate portion 31.

  When shifting to the second state, the plurality of first friction plates 42 that are stopped in the rotation direction and the plurality of second friction plates 46 that rotate together with the rotation shaft 90 are brought into close contact with each other. Friction occurs, and this frictional force becomes a reaction force that prevents the rotation of the rotating shaft 90.

  The magnitude of the reaction force depends on the close contact state between the first friction plate 42 and the second friction plate 46. For this reason, a desired reaction force can be obtained by appropriately determining the pressing distance at the pressing portion 55, the sizes of the first friction plate 42 and the second friction plate 46, the number of combinations, the surface state, and the like. realizable. The surface state of the first friction plate 42 and the second friction plate 46 may be uneven. Moreover, you may make it the structure which closely_contact | adheres via oil.

  Thereafter, when energization of the coil 65 is stopped, the magnetic flux generated in the coil 65 disappears. For this reason, the suction state between the movable member 50 and the front end surface of the cylindrical portion 20 of the case 30 is released. As a result, the rod-like body 70 is urged forward again by the spring force of the elastic portion 81 of the leaf spring member 80, and moves forward until the front surface of the E-ring 75 contacts the rear surface of the flat plate portion 31 of the case 30. . By the relative forward movement of the rod-shaped body 70 with respect to the case 30, the movable member 50 returns to the first state where the movable member 50 is positioned away from the cylindrical portion 20 of the case 30.

  That is, when energization of the coil 65 is stopped, the pressing state by the pressing portion 55 of the movable member 50 is also released, and the first friction plate 42 and the second friction plate 46 can move in the front-rear direction, that is, the axial direction of the rotary shaft 90. Return to the correct state.

  As described above, in the electromagnetic actuator 10 according to this embodiment, the coil 65 is energized, and the friction generated between the first friction plate 42 and the second friction plate 46 that are alternately overlapped with each other by using the magnetic flux generated thereby. The frictional force can be used as the reaction force of the rotation of the rotating shaft 90. As the power to be applied to the coil 65, it is only necessary to obtain a magnetic flux that allows the movable member 50 to move, so that the power consumption is greatly reduced as compared with the configuration in which the reaction force is directly obtained by the rotational force of the motor. can do.

  Further, as shown in FIG. 1 and the like, assuming that the coils 65 are arranged in the left and right positions, and the magnetic flux from each is transmitted to the cylindrical portion 20 and the like in the same direction, the coil 65 having a small number of turns is provided. Even if it uses, what can obtain a desired attraction | suction force can be comprised easily.

  And as an installation place of the electromagnetic actuator 10, the input device mounted in the input operation part of various electronic devices is suitable, However, You may mount in the part which performs input operation with rotation, such as a doorknob. Furthermore, it can be mounted on a joint portion that operates with rotation of a device that performs power assist, a joint portion of various robots used in production of a vehicle, or the like.

  Next, an input device incorporating the electromagnetic actuator 10 according to the embodiment will be described below using a joystick type as an example with reference to the drawings.

  6 is an external perspective view of the input device incorporating the electromagnetic actuator, FIG. 7 is a cross-sectional view of the input device, FIG. 8 is an exploded perspective view of the input device, and FIG. 9 is an exploded perspective view of the input device viewed from below. FIG. 10 is a top view of the input device with the first housing removed, and FIG. 11 is a perspective view showing the angle in the state of FIG.

  As can be seen from FIGS. 6, 7, 9, and the like, the joystick-type input device 100 includes a box-shaped first housing 110 that is open at the bottom and a plate-shaped first housing 110 that is coupled to the first housing 110. The operation shaft 130 protrudes upward from a hole provided in the top surface of the first housing 110 in a substantially rectangular parallelepiped outer shape combined with the two housings 120. The upper end portion of the operation shaft 130 is formed in the shape of an operation knob, and is used for the tilting operation to the operation shaft 130.

  The operation shaft 130 is disposed so as to pass through the long holes provided in the first gimbal member 150 and the second gimbal member 170, respectively (see FIGS. 7 to 9). The first gimbal member 150 and the second gimbal member 170 are arranged so as to overlap in directions orthogonal to each other.

  The first gimbal member 150 has a narrow shape when viewed from above, and includes a first rotating shaft 152 that protrudes from one end thereof. The other end is formed in the first coupling portion 154 for the first detection element 210. The first rotating shaft 152 and the first coupling portion 154 are provided on the same axis.

  The first rotating shaft 152 corresponds to the rotating shaft 90 described above, and the first rotating shaft 152 is inserted into the first electromagnetic actuator 310 that is the electromagnetic actuator 10 as described above.

  The first electromagnetic actuator 310 is placed on the peripheral edge of the second casing 120 so that the first electromagnetic actuator 310 itself can tilt (see FIGS. 7, 10, and 11).

  The first coupling part 154 of the first gimbal member 150 is coupled to the rotary movable part of the first detection element 210.

  The first detection element 210 can obtain an output corresponding to the rotation of the rotary movable part when rotated by a predetermined angle. For example, a contact type is a variable resistor, an encoder, and a non-contact type is an optical type or magnetic type. An encoder of a formula is used. The first detection element 210 is attached to the wiring board 500 arranged below the second housing 120.

  Note that the wiring substrate 500 is integrated with the second housing 120. The means for the integration is not particularly limited, but in the present embodiment, the integration is performed from below using a screw 511 (see FIGS. 8 and 9). Here, the wiring board 500 may be configured using a wiring board on the device side without integrating the wiring board 500. The means for coupling the second casing 120 to the first casing 110 is not limited in the same manner, but in the present embodiment, the second casing 120 is integrated from below with a screw 512 (FIGS. 8 and 8). 9).

  The second gimbal member 170 has a narrow shape when viewed from above, and includes a second rotating shaft 172 that is formed so as to protrude from one end thereof. The other end is a second coupling portion 174 for the second detection element 220. The second rotating shaft 172 and the second coupling portion 174 are provided coaxially.

  The second rotating shaft 172 also corresponds to the rotating shaft 90 described above, and the second rotating shaft 172 is described as a second electromagnetic actuator 320 that is the electromagnetic actuator 10. The second electromagnetic actuator 320 is inserted as described above.

  The second electromagnetic actuator 320 is also placed on the periphery of the second housing 120 so that the second electromagnetic actuator 320 can tilt (see FIGS. 7, 10, and 11).

  The second coupling part 174 of the second gimbal member 170 is coupled to the rotary movable part of the second detection element 220. As the second detection element 220, the same element as the first detection element 210 is used.

  The overlapping first gimbal member 150 and second gimbal member 170 are supported by the support member 400 from below. The operation shaft 130 is inserted into the central hole of the support member 400.

  A ring-shaped member 420 is disposed below the support member 400. The ring-shaped member 420 includes an inner rod-shaped portion in the outer frame portion and an outer rod-shaped portion that is paired outward from the outer frame portion. The inner rod-shaped portion and the outer rod-shaped portion are orthogonal to each other and have a substantially circular cross section. As shown in FIG. 7, the lower end of the operating shaft 130 is snap-coupled to the inner rod-like portion. The upper surface of the outer rod-shaped portion is received by an arc-shaped receiving portion provided on the lower surface of the support member 400.

  As can be seen from the above description, the operation shaft 130 can be tilted in all directions, with the vicinity of the coupling portion with the inner rod-shaped portion of the ring-shaped member 420 serving as a fulcrum.

  When the operation shaft 130 is tilted, the first gimbal member 150 and the second gimbal member 170 rotate on the support member 400 at angles corresponding to each other. A predetermined output is obtained from the corresponding first detection element 210 or second detection element 220 according to the rotation state, and the tilt direction or tilt angle of the operation shaft 130 can be detected from these outputs. Note that it is preferable to add a midpoint return mechanism for returning the operation shaft 130 to the original neutral position after the operation shaft 130 is tilted.

  A push button switch 460 is disposed below the ring-shaped member 420 via a pressing body 440. The push button switch 460 is a self-returning type and is mounted on the wiring board 500. The second casing 120 has a through hole at a location corresponding to the position where the push button switch 460 is disposed.

  Here, as described above, the first electromagnetic actuator 310 itself and the second electromagnetic actuator 320 themselves are arranged to be tiltable up to a predetermined angle. Next, the configuration will be described.

  The first electromagnetic actuator 310 includes a first engagement portion 313 (corresponding to the engagement portion 33 of the electromagnetic actuator 10) that protrudes in a cross shape on the side, as shown in FIG. 10 and FIG. In addition, a first coil spring 315 and a second coil spring 317 are attached to the first engaging portion 313. The first coil spring 315 is in a predetermined compression state between the first engagement portion 313 and the top surface of the first housing 110. The second coil spring 317 is in a predetermined compressed state between the first engagement portion 313 and the upper surface of the second housing 120. The spring force applied from both to the first electromagnetic actuator 310 is the same when the operation shaft 130 is not operated, and the first electromagnetic actuator 310 maintains a horizontal arrangement state.

  The second electromagnetic actuator 320 is the same as the first electromagnetic actuator 310, and as shown in FIGS. 10 and 11, the second engagement portion 323 formed to protrude in a cross shape on the side has a third coil spring 325, A fourth coil spring 327 is attached. The third coil spring 325 is disposed in a predetermined compression state between the second engagement portion 323 and the top surface of the first housing 110, and the fourth coil spring 327 includes the first engagement portion 313 and the second housing. Between the upper surface of 120, it is arranged in a predetermined compression state. The spring force applied from both to the second electromagnetic actuator 320 is the same when the operation shaft 130 is not operated, and the second electromagnetic actuator 320 is maintained in a horizontal arrangement state as in the case of the first electromagnetic actuator 310. The same.

  As described above, the joystick type input device 100 is configured.

  As described above, when the operation shaft 130 is tilted, the first gimbal member 150 and the second gimbal member 170 perform corresponding rotation operations as described above, and the corresponding first detection element 210 and second detection element 220 are correspondingly moved. A predetermined output is obtained.

  Here, in this input device 100, it is assumed that the first electromagnetic actuator 310 is disposed corresponding to the first gimbal member 150, and the second electromagnetic actuator 320 is disposed corresponding to the second gimbal member 170. The reaction force of time can be obtained.

  That is, when the first electromagnetic actuator 310 is energized, in the first electromagnetic actuator 310, the plurality of first friction plates 42 and the plurality of second friction plates 46 that are alternately arranged in an overlapping manner are in close contact with each other. The rotation of the one rotation shaft 152 is prevented.

  When the second electromagnetic actuator 320 is energized, similarly, in the second electromagnetic actuator 320, the plurality of first friction plates 42 and the plurality of second friction plates 46 that are alternately arranged in an overlapping manner are in close contact with each other. The rotation of the second rotating shaft 172 is prevented.

  In other words, by controlling the energization of the first electromagnetic actuator 310 and the second electromagnetic actuator 320, it can be provided that a reaction force can be obtained when the operation shaft 130 is tilted. At this time, as described above, the necessary power can be reduced to a power that is directly counteracted using a motor.

  The timing for energizing the energization control is not particularly limited. For example, it is performed when it is detected that the operating shaft 130 is tilted at a predetermined angle, or is performed so that only a tilting operation in a predetermined direction is possible. Alternatively, when the tiltable range is from the neutral position of the operation shaft 130 to 30 °, it may be energized for a short time every 10 ° until the 30 ° tilt. Alternatively, in addition to the tilt angle, energization may be performed based on the time when the tilt is started.

  Further, in the input device 100, the first electromagnetic actuator 310 and the second electromagnetic actuator 320 are arranged on the second casing 120 so that each can be tilted as a whole.

  In this case, after energizing either one or both of the first electromagnetic actuator 310 and the second electromagnetic actuator 320 to obtain a reaction force when the operation shaft 130 is tilted, it continues in the same direction. When the tilting operation is performed with a large force, one of the first electromagnetic actuator 310 and the second electromagnetic actuator 320, or both of them itself tilts and comes into contact with the second housing 120. Thereby, it can be realized that the subsequent tilting operation of the operation shaft 130 is restricted.

  The tilting of the first electromagnetic actuator 310 and the second electromagnetic actuator 320 itself is realized by a so-called mechanical configuration, and no electric power is required at that time. Note that the tilting operation of the first electromagnetic actuator 310 and the second electromagnetic actuator 320 itself may be caused by a further tilting operation to the operation shaft 130 after the operation shaft 130 is stopped by the reaction force. .

  When the first electromagnetic actuator 310 itself is tilted, the first coil spring 315 and the second coil spring 317 are in a correspondingly expanded / contracted state. When the operating force is removed, the first coil spring 315 and the second coil spring 317 are restored to the original balanced spring force state. That is, with these restoring spring forces, the tilting state of the first electromagnetic actuator 310 itself returns to the original horizontal arrangement state.

  Further, when the second electromagnetic actuator 320 itself is tilted, the third coil spring 325 and the fourth coil spring 327 are in a corresponding expansion / contraction state. The rest is the same as that of the tilting of the first electromagnetic actuator 310 itself, and a description thereof will be omitted.

  When the operation shaft 130 is pushed downward, the operation shaft 130 moves downward. In response to this, the pressing body 440 is pushed downward by the ring-shaped member 420 to which the operation shaft 130 is coupled, and the push button switch 460 is switched.

  When the pushing force is removed, the push button switch 460 self-resets to its original state, and the operation shaft coupled to the pressing body 440, the ring-shaped member 420, and the ring-shaped member 420 by the self-returning force of the push button switch 460. 130 is pushed up to return to the state before pushing.

  As described above, this input device 100 can be provided as a reaction force obtained when the operation shaft 130 is tilted by energizing the first electromagnetic actuator 310 and the second electromagnetic actuator 320. And the power consumption consumed by the energization can be suppressed to be small, and can be used by being mounted on an input operation unit or the like of various electronic devices. Alternatively, it can be appropriately mounted at a place where an input operation is required.

  The electromagnetic actuator according to the present invention can be incorporated in a joystick type input device or the like, and the joystick type input device using the electromagnetic actuator is more reactive than the one using a motor while reducing the power consumption. Can be realized. For this reason, the electromagnetic actuator and an input device using the electromagnetic actuator are mainly useful when configuring various input operation parts including an input device for an input operation unit of various electronic devices.

DESCRIPTION OF SYMBOLS 10 Electromagnetic actuator 20 Cylinder part 22 Restriction groove 30 Case 31 Flat plate part 32 Coil holding part 33 Engagement part 42 1st friction board 42A Anti-rotation protrusion 42B Large diameter hole 46 2nd friction board 46B Deformed hole 48 Adjustment member 48A Driver groove DESCRIPTION OF SYMBOLS 50 Movable member 53 Circular hole 55 Press part 60 Bobbin 65 Coil 70 Rod-like body 75 E ring 80 Leaf spring member 81 Elastic part 82 Coupling member 90 Rotating shaft 100 Input device 110 1st housing 120 2nd housing 130 Operation shaft 150 1st 1 gimbal member 152 first rotation shaft 154 first coupling portion 170 second gimbal member 172 second rotation shaft 174 second coupling portion 210 first detection element 220 second detection element 310 first electromagnetic actuator 313 first engagement portion 315 First coil spring 317 Second coil spring 320 Second electromagnetic actuator Eta 323 second engaging portion 325 third coil spring 327 fourth coil spring 400 supporting member 420 ring member 440 pressing body 460 push button switch 500 wiring board 511 and 512 screw

Claims (6)

A case with a storage section;
A rotating shaft inserted into the storage unit;
A plurality of first friction plates that are arranged in the storage unit and are restricted in rotation in the rotation direction of the rotation shaft and movable in the axial direction of the rotation shaft;
A plurality of second friction plates that are arranged on the storage portion so as to be movable in the axial direction so as to overlap the first friction plates, and engage with the rotation shaft so as to be able to rotate together;
A movable member made of a magnetic material, which is disposed so as to be movable in the axial direction, with the first friction plate and the second friction plate sandwiched between the case and the case;
A coil for attracting between the case and the movable member when energized,
In the first state where the coil is not energized, the movable member is positioned away from the case,
In a second state in which the coil is energized, the case and the movable member are in a sucked state, and the movable member pushes the first friction plate and the second friction plate into the first friction plate and the An electromagnetic actuator for shifting between the second friction plates to a close contact state. The electromagnetic actuator according to claim 1, wherein the coil is provided at each of left and right positions where the first friction plate and the second friction plate are disposed. The electromagnetic actuator according to claim 1, wherein in the first state, the movable member is biased in a direction away from the case. The electromagnetic actuator according to claim 1, further comprising an adjustment member for adjusting an arrangement position of the first friction plate and the second friction plate. The electromagnetic actuator according to any one of claims 1 to 4, wherein a gimbal member is engaged with an operation shaft that is tiltably disposed, and the electromagnetic actuator is mounted on the rotation shaft provided on the gimbal member. An input device configured in combination. The input device according to claim 5, wherein the electromagnetic actuator itself is tiltably arranged.

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