JP6023011B2 - Position detection device - Google Patents

Description

  The present invention relates to a position detection device used for an operation for switching a driving mode of an automobile.

  Patent Document 1 discloses a lever position detection device using a magnet and a magnetic sensor.

  In this lever position detecting device, the operating lever is supported so as to be able to swing in two directions orthogonal to each other, and the connecting portion at the lower end of the connecting lever connected to the operating lever is the center hole of the disc-shaped magnet. Is engaged. When the operation lever is tilted in two directions, the magnet moves in a planar manner inside the case member, and the magnet is moved to any one of the six detection positions.

  In the case member, magnetic sensors using Hall elements are arranged at each of the six detection positions. Depending on which magnetic sensor detects magnetism from the magnet, which detection position the magnet has moved to Is determined.

JP 2011-11617 A

  The lever position detection device described in Patent Document 1 is a magnetic sensor arranged in six locations on a plane and detects a magnetic field from a moving magnet. Therefore, the detection area between the magnetic sensors is clarified. In order to achieve this, it is necessary to dispose the magnetic sensor at a distance, and it is difficult to downsize the detection mechanism.

  In addition, since the magnetic sensor determines the strength of the magnetism leaking from the moving magnet, the leakage magnetic field fluctuates when the magnetization of the magnet is deteriorated, and accurate detection cannot be performed. Therefore, it is necessary to configure the magnet with an expensive magnetic material having a very high coercive force, which increases the manufacturing cost.

  Furthermore, when the change of the product specification causes a change in the swing angle of the operation lever or a change in the position of the detection position, it is necessary to redesign the case member in which the magnetic sensor is arranged.

  The present invention solves the above-described conventional problems, and can detect both the swing in the first direction and the swing in the second direction based on the rotation of the rotor. An object of the present invention is to provide a position detecting device that can improve the size of the device and can be miniaturized and can easily follow changes in product specifications.

The present invention includes an operation lever, a support body that supports the operation lever so as to be swingable in a first direction and a second direction orthogonal to each other, and a detection mechanism unit that detects a swing position of the operation lever. In the provided position detection device,
The detection mechanism includes a rotation detection member that rotates following the swing of the operation lever in the first direction, and the rotation following the swing of the operation lever in the second direction. A movement detection member that moves along a linear trajectory that intersects the rotation direction of the detection member;
A first rotor that is rotated by the rotation detection member; a motion conversion mechanism that converts the movement of the movement detection member into a rotational motion; a second rotor that is rotated by the motion conversion mechanism; A detection element for detecting rotation of the first rotor and the second rotor ;
The first rotor and the second rotor are supported so that the rotation centers thereof are parallel to each other, and a fixing portion having the detection element is provided between the first rotor and the second rotor. Facing both rotors and / or
A driving body extending from the operation lever, and a driven member that is unevenly fitted to the driving body and moves in a first direction and a second direction;
The driven member is engaged with the rotation detection member and the movement detection member, and the rotation detection member and the movement detection member are operated by the driven member; and / or
In the motion conversion mechanism, one of the movement detection member and the second rotor is provided with a linear locus conversion cam, and the other is provided with a follower for sliding the conversion cam. is there.
In the above, for example, the rotation detection member is formed with a linear guide portion extending in the movement direction of the movement detection member, and the driven member is slidably engaged with the linear guide portion,
The movement detection member may be configured such that an arc guide portion extending in the rotation direction of the rotation detection member is formed, and the driven member is slidably engaged with the arc guide portion.

  In the position detection device of the present invention, since the swinging of the operating lever in the first direction and the swinging in the second direction are both converted into the rotational motion of the rotor, the rotational angle and amount of rotation of the rotor By detecting this, it is possible to accurately detect in which position the operation lever is tilted. Since it is not necessary to dispose the magnets separately as in the prior art, the size can be reduced. Moreover, since it is a system which detects rotation of a magnetic field, an expensive magnet is unnecessary.

  In addition, even if the operating lever swing angle changes or the detection position changes due to changes in product specifications, it is not necessary to change the rotor layout, etc., and the rotor rotation angle detection output can be used as is. This can be dealt with by changing only the electrical control specifications.

When the fixed portion faces both the first rotor and the second rotor whose rotation centers are parallel to each other, it is possible to reduce the size of the configuration of the detection unit including the rotor and the fixed portion. is there.

  In the present invention, the operation lever is supported so as to be able to swing in a first direction and a second direction with a single swing center point as a fulcrum.

In the present invention, the rotation detection member is formed with a gear portion having the rotation center of the rotation detection member as the center of the pitch circle, the gear formed on the first rotor meshes with the gear portion, and the rotation A structure in which the rotation of the motion detection member is accelerated and transmitted to the first rotor is preferable.

  In the present invention, a magnet magnetized with different magnetic poles in the normal direction of the rotational movement of the rotor is provided on one of the first rotor and the second rotor, and a fixed portion opposed to the first rotor. On the other hand, a magnetic detection element for detecting the rotation of the magnet is arranged. For example, the magnetic sensing element is a magnetoresistive effect element.

In the present invention, a sliding spherical surface and a shaft body extending on a support axis passing through the center of curvature of the sliding spherical surface are provided at the base of the operation lever,
The support body is provided with a sliding support portion that supports the sliding spherical surface, and a shaft body support portion that guides the shaft body so as to be rotatable and movable in a direction in which the support axis is tilted. Is.

  In the present invention, since the swinging of the operation lever in the first direction and the second direction in both directions is converted into the rotational motion of the rotor, the operation angle can be detected by detecting the rotational angle of the rotor. It is possible to accurately detect in which position the lever is tilted. Since it is not necessary to dispose the magnets separately as in the prior art, the size can be reduced. Moreover, since it is a system which detects rotation of a magnetic field, an expensive magnet is unnecessary.

  In addition, even if the operating lever swing angle changes or the detection position changes due to changes in product specifications, it is not necessary to change the rotor layout, etc., and the rotor rotation angle detection output can be used as is. This can be dealt with by changing only the electrical control specifications.

The perspective view which shows the whole structure of the position detection apparatus of embodiment of this invention, FIG. An exploded perspective view showing a support mechanism for swingably supporting the operation lever; 4 is a partial cross-sectional view taken along the line IV-IV in FIG. Operation explanatory diagram of the detection mechanism, Sectional view showing the rotor and the sensing element,

  1 to 3 are all perspective views. FIGS. 1 and 3 are perspective views seen from the same direction, but FIG. 2 is shown in a direction rotated by 180 degrees about the Z axis with respect to both figures.

  As shown in FIG. 1, the position detection device according to the embodiment of the present invention has an operation lever 1. The operation lever 1 is supported so as to be able to swing in the Y1-Y2 direction which is the first direction and the X1-X2 direction which is the second direction. In FIG. 2, the swing direction in the first direction is indicated by the α direction, and the swing direction in the second direction is indicated by the β direction.

  As shown in FIG. 3, a base molded body 5 made of synthetic resin is integrally formed at the base of the operation lever 1. The base molded body 5 is swingably supported by the first support body 10, and the first support body 10 is fixed to the second support body 20 and the third support body 30. In FIG. 3, the second support 20 is cut halfway and only the bottom structure is shown. However, as shown in FIG. 1, the second support 20 has a vertically long body 21. The inside of the trunk portion 21 is a cavity.

  As shown in FIG. 1, the opening on the upper side of the body portion 21 of the second support 20 is closed with a guide member 40. The opening at the bottom of the second support 20 is closed by the third support 30. The body 21 of the second support 20, the guide member 40 and the third support 30 constitute a first housing, and the base molded body 5 and the first support 10 of the operating lever 1 are Are housed inside the first housing.

  As shown in FIG. 1, a guide hole 41 is formed through the guide member 40, which is a part of the first housing, so as to penetrate vertically. The operation lever 1 passes through the inside of the guide hole 41 and extends upward from the first housing. The swing angle of the operation lever 1 is determined by the length of the guide hole 41, and the operation position set by moving the operation lever 1 is determined by the shape of the guide hole 41.

  As shown in FIGS. 1 and 2, in the position detection device of the embodiment, the operation positions set by swinging the operation lever 1 are the five positions (1), (2), (3), (4), and (5). It is. Switching between the operation positions (1) and (2) is performed by swinging the operation lever 1 in the second direction (X1-X2: β direction). Switching between the operating positions (1) and (3) and switching between (2) and (4) or switching between (2) and (5) causes the operating lever 1 to It is performed by swinging in the direction (Y1-Y2: α direction).

  The position detection device generates a signal for switching the driving mode of the automobile, and the forward mode, the marching mode, and the brake mode of the automobile are set by switching the operation position.

  The operation position (1) is a home position. As shown in FIG. 2, a bottomed hole 5a is formed in the base molded body 5 at the base of the operation lever 1, and a return pin 6 is inserted into the hole 5a so as to protrude freely. The return pin 6 is urged in the protruding direction by a return spring housed in the hole 5a. A return cam surface is formed on the lower surface of the guide member 40 shown in FIG. 1, and the return pin 6 is pressed against the return cam surface by the biasing force of the return spring. Due to the shape of the return cam surface, if the operating force on the operating lever 1 is removed after the operating lever 1 is moved to a position other than the home position (1), the operating lever 1 is always returned to the home position (1). It is done.

  As shown in FIGS. 2 and 3, a sliding spherical surface 7 is formed integrally with the base molded body 5. The sliding spherical surface 7 is a part of a spherical surface. A center of curvature 7 a (see FIG. 4) of the sliding spherical surface 7 is located on the axial center line of the operation lever 1. FIG. 2 shows a first axis center line X0 and a second axis center line Y0 passing through the spherical curvature center 7a and orthogonal to the axis center line of the operating lever 1. The first axis center line X0 extends in the X1-X2 direction, and the second axis center line Y0 extends in the Y1-Y2 direction.

  As shown in FIG. 2, shaft bodies 8 and 8 extending from the sliding spherical surface 7 are integrally formed on the base molded body 5. The shaft centers of the shaft bodies 8, 8 coincide with the second shaft center line Y0.

In FIG. 4, only the sliding spherical surface 7 of the base molded body 5 provided at the base of the operation lever 1 is shown for the sake of simplicity, and the structure of the base molded body 5 other than the sliding spherical surface 7 is omitted. ing.
The first support 10 shown in FIGS. 3 and 4 is integrally formed of a synthetic resin material.

  As shown in FIG. 4, a sliding support portion 11 is formed at the bottom of the first support 10, and the lower end portion of the sliding spherical surface 7 is slidably in contact with the sliding support portion 11. The sliding support portion 11 is a part of the concave spherical surface, and the radius of curvature of the concave spherical surface substantially coincides with the radius of curvature of the sliding spherical surface 7. Although the sliding support part 11 can be configured to have a sliding projection that abuts the sliding spherical surface 7 at a plurality of points instead of the concave spherical surface, the sliding spherical surface 7 can be formed by making the sliding support part 11 a concave spherical surface. It is easy to prevent local wear due to sliding on the sliding support portion 11.

  As shown in FIGS. 3 and 4, four elastic holding portions 12 are integrally formed on the first support 10. Each elastic holding portion 12 has a lower end integrated with the bottom of the first support 10 and extends upward. The four elastic holding portions 12 face each other with the holding space 13 in between. A holding sliding portion 12 a that protrudes toward the holding space 13 is formed at the opposing portion of each elastic holding portion 12.

  As shown in FIG. 3, shaft body support portions 14, 14 extending in the Y <b> 1 direction and the Y <b> 2 direction are formed on the first support body 10 continuously with the holding space 13. The opening width dimension of the shaft body support portions 14, 14 in the X1-X2 direction substantially matches the diameter of the shaft bodies 8, 8 formed in the base molded body 5. The shaft body support portions 14 and 14 are formed several times deeper than the diameter of the shaft bodies 8 and 8 in the vertical direction (Z1-Z2 direction) while maintaining the opening width dimension.

  In a state where the first support body 10 is not fixed to the second support body 20, the lower end portion of the base molding portion 5 of the operation lever 1 is mounted on the first support body 10 from above. The sliding spherical surface 7 of the base molding portion 5 is inserted into the holding space 13 of the first support body 10, and the shaft bodies 8 and 8 are inserted into the shaft body support sections 14 and 14. At the time of insertion, the sliding spherical surface 7 slides with the holding sliding portions 12a of the respective elastic holding portions 12, and the elastic holding portions 12 are elastically deformed outward so as to be separated from each other. When the sliding spherical surface 7 is mounted in the holding space 13, the holding sliding portion 12 a is pressed against the sliding spherical surface 7 above the center of curvature 7 a by the elastic force of the elastic holding portion 12. With this elastic force, a downward biasing force acts on the sliding spherical surface 7, and the lower portion of the sliding spherical surface 7 is brought into close contact with the sliding support portion 11. The sliding spherical surface 7 is held by the first support 10 so as to be able to swing without causing rattling by being held by the four elastic holding portions 12 and being in close contact with the sliding support portion 11.

  When the sliding spherical surface 7 is held in the holding space 13 and the shaft bodies 8 and 8 are held inside the shaft body support portions 14 and 14, the operation lever 1 and the base molded body 5 are connected to the shafts 8 and 8. It can be swung in a second direction (X1-X2 direction: β direction) around the center line, that is, the second axis center line Y0. Moreover, the operating lever 1 and the base molded body 5 pass through the center of curvature 7a by moving the shaft bodies 8 and 8 so as to fall in the vertical direction (Z1-Z2 direction) inside the shaft body support portions 14 and 14. It can swing in the first direction (Y1-Y2 direction: α direction) around the first axis center line X0.

  The center of curvature 7a of the sliding spherical surface 7 becomes the center of swinging in both the swinging in the first direction and the swinging in the second direction.

  In a state where the base molded body 5 of the operation lever 1 is held on the first support 10, the first support 10 is inserted into the body 21 of the second support 20 from above. The second support 20 is made of synthetic resin.

  As shown in FIG. 3, four partition walls 22 extending in the vertical direction are integrally formed on the bottom of the second support 20. The opposing surface of each partition wall 22 is formed in a concave shape, and the space surrounded by the four partition walls 22 is a cylindrical space extending vertically. Support walls 23 and 23 extending in parallel to the Y1 direction and the support walls 23 and 23 extending in parallel to the Y2 direction are formed integrally with the partition wall 22. As shown in FIGS. 3 and 4, locking projections 24 are integrally formed on the outer surfaces of the four partition walls 22.

  As shown in FIGS. 3 and 4, attachment elastic portions 15 are integrally formed at four locations on the outer periphery of the first support 10. Each of the attachment elastic portions 15 is opposed to the outer peripheral side of the elastic holding portion 12 with a certain interval. The attachment elastic part 15 is formed integrally with the first support 10 at the upper end and extends downward, and the lower end part is elastically deformable toward the inner peripheral direction and the outer peripheral direction. A locking hole 15 a is opened in each mounting elastic portion 15.

  As shown in FIG. 4, when the first support 10 holding the base molded body 5 is inserted to the bottom of the second support 20, the sliding support 11 of the first support 10 and the four supports The elastic holding part 12 is mounted in a cylindrical space surrounded by the four partition walls 22 of the second support 20. Further, the shaft body support portions 14 and 14 of the first support 10 are inserted between the parallel support walls 23 and 23 of the second support 20.

  At this time, each elastic holding portion 12 of the first support 10 is in close contact with the inside of the partition wall portion 22 formed on the second support 20, and the mounting elastic portion 15 of the first support 10 is The locking holes 15a formed in the mounting elastic portion 15 are brought into close contact with the outer surfaces of the partition walls 22 and hooked on the locking protrusions 24 protruding from the outer surface of the partition walls 22, so that the first support 10 is Positioned and supported within the second support 20.

  As shown in FIG. 4, when the first support body 10 is mounted on the bottom of the second support body 20 with the sliding spherical surface 7 held by the elastic holding section 12, the outer surface of the elastic holding section 12. Adheres to the partition wall 22 of the second support 20, and the elastic holding part 12 cannot be elastically deformed outward. For this reason, the sliding spherical surface 7 is firmly held in the holding space 13 of the first support 10 and cannot escape in the direction.

  As shown in FIG. 3, the third support 30 is made of synthetic resin. The third support 30 includes a bottom plate portion 31 that closes the opening of the bottom portion of the body portion 21 of the second support 20, and side plate portions 32 and 32 that rise upward from an edge on the long side of the bottom plate portion 31. The bottom plate portion 31 has locking side plate portions 33 and 33 that rise upward from the edge on the short side. A locking hole 33 a is opened in the locking side plate portions 33, 33. As shown in FIGS. 1 and 3, a locking projection 25 is integrally formed on the narrow outer surface of the body portion 21 of the second support 20.

  As shown in FIG. 1, when the third support body 30 is attached to the bottom portion of the second support body 20, the bottom plate portion 31 covers the opening at the bottom portion of the trunk portion 21. The side plate portions 32 and 32 and the locking side plate portions 33 and 33 are brought into close contact with the outer surface of the body portion 21 of the second support 20, and the locking protrusion 25 and the locking hole 33 a are fitted to each other, so The body 20 and the third support 30 are positioned.

  As shown in FIG. 3, in the third support 30, four restricting protrusions 34 that protrude upward from the bottom plate portion 31 are integrally formed. As shown in FIG. 4, after the first support 10 holding the sliding spherical surface 7 is attached to the bottom of the second support 20, the third support 30 is the bottom of the second support 20. If it attaches to, the control protrusion 34 will be inserted inside the trunk | drum 21 of the 2nd support body 20. As shown in FIG. Then, the restricting protrusion 34 intervenes so as to be in close contact between the attachment elastic portion 15 of the first support 10 and the body portion 21 of the second support 20, and the deformation of the attachment elastic portion 15 is restricted. The locking hole 15 a cannot be detached from the locking projection 24. As a result, the first support 10 cannot be directed upward from the bottom of the second support 20.

  In this detection apparatus, first, the sliding spherical surface 7 of the base molding portion 5 formed at the base portion of the operating lever 1 is mounted in the holding space 13 of the first support 10, and the sliding spherical surface 7 is formed by the elastic holding portion 12. Hold. Thereafter, the first support 10 is inserted into the body 21 of the second support 20 and attached to the bottom of the second support 20. Further, the third support 30 is mounted on the bottom of the second support 20, and the second support 20 and the third support 30 are fixed with screws or fixing pins. In this series of assembly operations, as shown in FIG. 4, the first support 10 can no longer come out of the second support 20, and the sliding spherical surface 7 can come out of the first support 10. become unable.

  Further, the guide member 40 is fixed to the upper opening of the second support 20 and the operation lever 1 is inserted into the guide hole 41 so that the operation lever 1 is guided in the guide hole 41 inside the first housing. It is possible to swing (tilt) in the first direction and the second direction along the direction.

  As shown in FIG. 3, an opening 26 is formed in a part of the body 21 of the second support 20, and as shown in FIG. A second housing 60 is fixed to the outside of the portion 21.

  As shown in FIG. 1, a support wall 61 is formed integrally with the second housing 60, and the components constituting the detection mechanism 50 shown in FIGS. 2 and 5 are inside the support wall 61. It is stored.

  As shown in FIG. 2, the inspection mechanism 50 includes a rotation detection member 51 and a movement detection member 52. A support hole 51 a is formed in the rotation detection member 51. A support protrusion 61a shown in FIG. 5 is integrally formed on the inner surface of the support wall 61, and the support hole 51a of the rotation detection member 51 is rotatably supported by the support protrusion 61a. FIG. 2 shows a rotation center line O1 coinciding with the axis center of the support protrusion 61a. The rotation detection member 51 is supported so as to be rotatable about a rotation center line O1.

  As shown in FIG. 2, the movement detection member 52 and the rotation detection member 51 are arranged so as to overlap in the X1-X2 direction. A sliding projection 52a extending in the vertical direction (Z1-Z2 direction) is integrally formed on the outer surface of the movement detection member 52 on the X2 side. A guide groove extending linearly in the vertical direction (Z1-Z2 direction) is formed on the inner surface of the support wall portion 61 of the second housing 60, and the sliding protrusion 52a is slidably inserted into the guide groove. The movement detection member 52 is supported so as to be linearly movable in the vertical direction (H direction).

  The linear movement direction (H direction) of the movement detection member 52 is a direction intersecting the rotation direction (γ direction) of the rotation detection member 51, and the linear movement direction (H direction) of the movement detection member 52 is the home. It is in the position (1) and is parallel to the axial center of the operating lever 1 rising vertically from the bottom plate portion 31.

  As shown in FIGS. 2 and 5, a follower 53 is provided for the detection mechanism 50. The rotation detecting member 51 is integrally formed with linear guide portions 51b and 51b, and sliding portions 53a and 53a formed on the driven member 53 are slidably held by the linear guide portions 51b and 51b. The movement detection member 52 is formed with an arc guide portion 52b, and a sliding protrusion 53b protruding from the driven member 53 in the X2 direction is slidably inserted into the arc guide portion 52b.

  The driven member 53 is formed with a connecting recess 53c that opens in the X1 direction. The base molding portion 5 is integrally formed with a drive body 9 extending in a direction perpendicular to the axial direction of the operation lever 1, and a connecting projection 9 a is integrally formed at the tip thereof. As shown in FIG. 5, the connecting protrusion 9a is inserted into the connecting recess 53c with almost no gap, and the connecting protrusion 9a is unevenly fitted so that it can move in the three-dimensional direction inside the connecting recess 53c. In addition, the connection protrusion 9a may be formed integrally with the driven member 53, and the connection recess 53c may be formed integrally with the driving body 9.

  With the rotation detection member 51, the movement detection member 52, and the driven member 53 attached to the inner surface of the support wall portion 61 of the second housing 60, the second housing 60 is the body of the second support 201. The body 21 that is a part of the first housing and the second housing 60 are fixed to each other by an attachment screw or the like. At this time, the concave / convex fitting portion between the driven member 53 and the driving body 9 is located inside the opening 26 of the trunk portion 21 of the second support 20.

  Since the shaft bodies 8 and 8 of the base molded body 5 provided at the base portion of the operation lever 1 are held inside the shaft body support portions 14 and 14 extending in the Y1-Y2 direction in the first support body 10, The operation lever 1 has a first direction (Y1-Y2 direction: α direction) centered on the first axis center line X0 and a second direction (X1-X2) centered on the second axis center line Y0. (Direction: β direction) can be swung only, and rotation in other directions is restricted.

  When the operating lever 1 swings in the first direction about the first axis center line X0, the force is transmitted from the driver 9 to the rotation detection member 51 via the driven member 53, and the rotation detection member 51 is transmitted. Is rotated in the γ direction. However, since the arc guide portion 52b formed on the movement detecting member 52 is formed along an arc locus having the first axis center line X0 as the center of curvature, the sliding projection 53b of the driven member 53 is arc-guided. Even if the portion 52b is slid, the moving force in the vertical direction does not act on the movement detecting member 52. Therefore, when the operation lever 1 swings in the first direction, the movement detection member 52 does not move in the vertical direction (H direction), and only the rotation detection member 51 moves in the γ direction around the rotation center line O1. It rotates.

  Since the operation lever 1 is guided by the guide hole 41 of the guide member 40 shown in FIG. 1, the operation lever 1 is moved only between the operation positions (1) and (2) only when the second axis center line is moved. It can swing in the second direction around Y0. That is, the control lever 1 can swing in the second direction (X1-X2 direction: β direction) only when it is in the neutral position in the first direction (Y1-Y2 direction: α direction). is there.

  When the operation lever 1 is swung in the second direction between the operation positions (1) and (2), the rotation detection member 51 is set to the neutral position in the rotation direction in the γ direction by the driven member 53. Therefore, the linear guide portion 51b of the rotation detection member 51 is oriented along the vertical direction, that is, the movement direction (H direction) of the movement detection member 52. When the operation lever 1 is rotated in the second direction, the driven member 53 is moved in the vertical direction by the driver 9. At this time, since the driven member 53 only moves up and down the linear guide portion 51b of the rotation detecting member 51, the rotation detecting member 51 is not rotated, and the moving force of the driven member 53 in the vertical direction is used. Only the movement detection member 52 is moved in the vertical direction (H direction).

  The detection mechanism unit 50 is provided with a pair of first rotors 54 and 54 and a pair of second rotors 55 and 55. Shaft portions 54 a, 54 a are integrally formed with the first rotors 54, 54, and the shaft portions 54 a, 54 a are rotatably supported by a bearing portion provided inside the second housing 60. Yes. Shaft portions 55 a, 55 a are formed integrally with the second rotor 55, 55, and the shaft portions 55 a, 55 a are rotatably supported by a bearing portion provided inside the second housing 60. Yes.

  The direction of the rotation center line that is the axis of the shaft portions 54a, 54a of the first rotors 54, 54 is X1-X2, and is the axis of the shaft portions 55a, 55a of the second rotors 55, 55. The direction of the rotation center line is also the X1-X2 direction. That is, the rotation center line of the pair of first rotors 54 and 54 and the rotation center line of the pair of second rotors are arranged in parallel to each other.

  As shown in FIGS. 2 and 5, a gear portion 51 c is formed integrally with the lower portion of the rotation detection member 51. The center of the pitch circle of the gear portion 51c coincides with the rotation center line O1 of the rotation detection member 51. A gear 54b is integrally formed with each first rotor 54, and the gear 54b meshes with the gear portion 51c. When the rotation detection member 51 rotates in the γ direction around the rotation center line O1, the pair of first rotors 54 and 54 are rotated in synchronization by the gear portion 51c.

  As shown in FIGS. 2 and 5, the movement detection member 52 is integrally formed with conversion cams 52c and 52c on both sides in the Y1 direction and the Y2 direction. The conversion cams 52c and 52c extend in a Y1-Y2 direction orthogonal to the movement direction (H direction) of the movement detection member 52 so as to form a linear locus. A follower projection 55b is formed integrally with each second rotor 55, and the follower projection 55b is slidably inserted into the conversion cam 52c. The conversion cams 52c and 52c and the follower protrusions 55b and 55b constitute a pair of motion conversion mechanisms.

  When the movement detecting member 52 moves in the vertical direction, the linear moving force is converted into the rotational motion of the second rotors 55 and 55 by the motion conversion mechanism, and the pair of second rotors 55 are synchronized. Can be rotated.

  In the motion conversion mechanism, a linear cam conversion cam may be formed on the second rotor 55, and a follower projection that slides on the conversion cam may be provided on the movement detection member 52.

  As shown in FIG. 2, a magnet holding portion 54 c is formed at the facing portion of the first rotor 54 facing the X2 side, and a magnet holding portion 55 c is formed at the facing portion of the second rotor 55 facing the X2 side. ing. As shown in FIG. 1, the magnet holding part 54 c formed on the pair of first rotors 54 and the magnet holding part 54 c formed on the pair of second rotors 55 are provided on the second casing 60. Appearing on the outer surface of the support wall 61, the magnet holding portions 54c and 55c are oriented in the X2 direction.

  As shown in FIG. 6, the magnet 56 is held by the magnet holding portion 54 c of the first rotor 54. On the facing surface facing the X2 side of the magnet 56, magnetic poles having different N and S poles are magnetized in the normal direction (diameter direction) of the first rotor 54. Although not shown in FIG. 1, in the second housing 60, a fixed substrate 67, which is a fixed portion parallel to the support wall portion 61, is fixed at a position away from the support wall portion 61 in the X2 direction. . As shown in FIG. 6, the detection element 68 facing the magnet 56 is arranged on the fixed substrate 67.

  The sensing element 68 is a giant magnetoresistive effect element, and has a fixed magnetic layer whose magnetization is fixed and a free magnetic layer whose magnetization direction rotates following the change of an external magnetic field. The electrical resistance changes according to the relative angle between the fixed magnetization direction of the layer and the magnetization direction of the free magnetic layer. As shown in FIG. 6, the detection element 68 faces the rotation center of the first rotor 54. When the first rotor 54 rotates, the direction of the leakage magnetic field from the N pole to the S pole of the magnet 56 changes, so that the magnetization direction of the free magnetic layer rotates following the direction of the leakage magnetic field and The resistance value changes. By detecting this change in resistance, the rotation angle of the first rotor 54 can be detected.

  The magnets 56 are similarly held in the magnet holding portions 55 c and 55 c of the pair of second rotors 55 and 55, and the detection element 68 faces the rotation center of the second rotor 55 on the fixed substrate 67. doing. A detection output corresponding to a change in the rotation angle of the second rotor 55 can be obtained from the detection element 68.

Next, the detection operation of the position detection device will be described.
When switching the operation position from the home position (1) to the position (3), the operation lever 1 at the home position (1) is swung in the Y1 direction which is the first direction. In this operation, the rotation detecting member 51 is rotated in the γ1 direction without the movement detecting member 52 being moved by the swing of the base forming portion 5 in the Y1 direction. Are rotated in the direction φ1 in FIG. When the rotation of the magnetic field is detected by the detection element 68 facing the first rotors 54 and 54 and the rotation angle reaches a predetermined range, it is determined that the operation position has been switched to (3).

  When switching the operation position from the home position (1) to the position (4), the operation lever 1 of the home position (1) is swung in the X2 direction which is the second direction and moved to the position (2). Is moved to the position (4) by swinging in the Y1 direction which is the first direction.

  When the operating lever 1 is swung in the X2 direction, the driven member 53 is lowered by the driver 9. At this time, the movement detection member 52 is lowered without rotating the rotation detection member 51, and the second rotors 55 and 55 are rotated in the Φ2 direction in FIG. When the rotation of the magnetic field is detected by the detection element 68 facing the second rotor 55, 55 and the rotation angle reaches a predetermined range, it is determined that the operation position has been switched to (2). Further, when the operation lever 1 is tilted in the Y1 direction and reaches the position (4), the rotation detecting member 51 rotates in the γ1 direction without moving the movement detecting member 52. At this time, it is detected that the first rotors 54, 54 have rotated in the Φ1 direction, and it is detected that the first rotor 54 has been switched to the position (4).

  When the operation lever 1 is switched from the home position (1) to the position (5), the operation lever 1 is moved to the position (2) and then moved to the position (5). In this operation, first, the second rotors 55 and 55 are rotated in the Φ2 direction in FIG. 5, and then the first rotors 54 and 54 are rotated in the Φ3 direction in FIG. 5. By detecting the rotation angle of the second rotors 55 and 55 and the rotation angle of the first rotors 54 and 54, it can be detected that the position (5) has been selected.

  This position detection device can detect selection of an operation position based on a combination of rotation angles of the first rotors 54 and 54 and the second rotors 55 and 55. Since the detection element 68 detects the rotation of the magnetic field and does not detect the strength of the magnetic field, the first rotors 54 and 54 and the second rotors 55 and 55 may be arranged close to each other. The detection operation of the detection element does not interfere. Therefore, as shown in FIG. 1, the rotation axes of the plurality of rotors 54 and 55 can be arranged parallel to each other and can be arranged close to each other, which facilitates downsizing.

  Further, since the magnets held by the rotors 54 and 55 only need to be able to detect the rotation of the magnetic field, it is not necessary to use an expensive magnet having a large coercive force.

  Furthermore, when the swing angle of the operation lever 1 or the number or position of the operation positions is changed due to a change in the product specification, it can be dealt with by simply replacing the guide member 40. In this case, the swing angle of the operation lever when the position is selected changes, but the change only appears as a change in the rotation angle of the rotors 54 and 55, so that the detection output from the detection element 68 is not detected. It is possible to respond to changes in specifications simply by changing the electrical processing based on it.

DESCRIPTION OF SYMBOLS 1 Operation lever 5 Base molded object 7 Sliding spherical surface 8 Shaft body 9 Drive body 9a Connection protrusion 10 1st support body 11 Sliding support part 12 Elastic holding part 14 Shaft body support part 15 Attachment elastic part 20 Second support Body 21 Body 22 Bulkhead 30 Third support 34 Restriction protrusion 41 Guide hole 50 Detection mechanism 51 Rotation detection member 51b Straight line guide 51c Gear portion 52 Movement detection member 52b Arc guide 52c Conversion cam 53 Driven member 53c Connecting recess 54 First rotor 54b Gear 54c Magnet holder 55 Second rotor 55b Follower projection 55c Magnet holder 56 Magnet 67 Fixed substrate 68 Sensor element X0 First axis center line Y0 Second axis center line

Claims (13)

A position provided with an operation lever, a support that supports the operation lever so as to be swingable in a first direction and a second direction orthogonal to each other, and a detection mechanism that detects a swing position of the operation lever. In the detection device,
The detection mechanism includes a rotation detection member that rotates following the swing of the operation lever in the first direction, and the rotation following the swing of the operation lever in the second direction. A movement detection member that moves along a linear trajectory that intersects the rotation direction of the detection member;
A first rotor that is rotated by the rotation detection member; a motion conversion mechanism that converts the movement of the movement detection member into a rotational motion; a second rotor that is rotated by the motion conversion mechanism; A detection element for detecting rotation of the first rotor and the second rotor;
The first rotor and the second rotor are supported so that the rotation centers thereof are parallel to each other, and a fixing portion having the detection element is provided between the first rotor and the second rotor. A position detection device characterized by facing both of the rotors. A driving body extending from the operation lever, and a driven member that is unevenly fitted to the driving body and moves in a first direction and a second direction;
The position detection device according to claim 1 , wherein the driven member is engaged with the rotation detection member and the movement detection member, and the rotation detection member and the movement detection member are operated by the driven member. The rotation detection member is formed with a linear guide portion extending in the movement direction of the movement detection member, and the driven member is slidably engaged with the linear guide portion,
Wherein the movement detecting member, said being arcuate guide portion extending in the rotational direction of the rotation detecting member is formed, the position of the driven member is the circular arc guide portion and slidably engaged with and claim 2, wherein Detection device. Wherein in the motion conversion mechanism, the the movement detection member and the second rotor, the conversion cam line trajectory one is any of claims 1 to 3 follower that slides the conversion cam to the other is provided A position detecting device according to the above. A position provided with an operation lever, a support that supports the operation lever so as to be swingable in a first direction and a second direction orthogonal to each other, and a detection mechanism that detects a swing position of the operation lever. In the detection device,
The detection mechanism includes a rotation detection member that rotates following the swing of the operation lever in the first direction, and the rotation following the swing of the operation lever in the second direction. A movement detection member that moves along a linear trajectory that intersects the rotation direction of the detection member;
A first rotor that is rotated by the rotation detection member; a motion conversion mechanism that converts the movement of the movement detection member into a rotational motion; a second rotor that is rotated by the motion conversion mechanism; A detection element for detecting rotation of the first rotor and the second rotor;
A driving body extending from the operation lever, and a driven member that is unevenly fitted to the driving body and moves in a first direction and a second direction;
The driven member is engaged with said moving detection member and the rotating sensing member, a position detecting device, characterized in that said rotating sensing member and the movement detection member is operated by the driven member. The rotation detection member is formed with a linear guide portion extending in the movement direction of the movement detection member, and the driven member is slidably engaged with the linear guide portion,
6. The position according to claim 5, wherein the movement detection member is formed with an arc guide portion extending in a rotation direction of the rotation detection member, and the driven member is slidably engaged with the arc guide portion. Detection device. 7. The motion conversion mechanism according to claim 5 or 6 , wherein the movement detecting member and the second rotor are provided with a conversion cam having a linear locus on one side and a follower for sliding the conversion cam on the other side. Position detection device. A position provided with an operation lever, a support that supports the operation lever so as to be swingable in a first direction and a second direction orthogonal to each other, and a detection mechanism that detects a swing position of the operation lever. In the detection device,
The detection mechanism includes a rotation detection member that rotates following the swing of the operation lever in the first direction, and the rotation following the swing of the operation lever in the second direction. A movement detection member that moves along a linear trajectory that intersects the rotation direction of the detection member;
A first rotor that is rotated by the rotation detection member; a motion conversion mechanism that converts the movement of the movement detection member into a rotational motion; a second rotor that is rotated by the motion conversion mechanism; A detection element for detecting rotation of the first rotor and the second rotor;
Wherein in the motion conversion mechanism, the second rotor and the movement detection member, conversion cam line trajectory one is, the conversion cam position detection, wherein a follower for sliding is provided to the other apparatus. The position detection device according to claim 1 , wherein the operation lever is supported so as to be able to swing in a first direction and a second direction with a single swing center point as a fulcrum. The rotation detection member is formed with a gear portion having the rotation center of the rotation detection member as the center of the pitch circle, and a gear formed on the first rotor meshes with the gear portion, and the rotation detection member The position detection device according to claim 1, wherein the rotation of the motor is accelerated and transmitted to the first rotor. One of the first rotor and the second rotor, and a fixed portion facing the first rotor, and a magnet magnetized with different magnetic poles in the direction normal to the rotational motion of the rotor, The position detection device according to claim 1 , further comprising a magnetic detection element that detects rotation of the magnet. The position detection device according to claim 11 , wherein the magnetic sensing element is a magnetoresistive effect element. A sliding spherical surface and a shaft extending on a support axis passing through the center of curvature of the sliding spherical surface are provided at the base of the operation lever,
The support body is provided with a sliding support portion that supports the sliding spherical surface, and a shaft body support portion that guides the shaft body so as to be rotatable and movable in a direction in which the support axis is tilted. The position detection device according to claim 1 .

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