JP2019178637A - Grip opening detection device - Google Patents

Abstract

To improve reliability of a grip opening detection device while reducing the number of components and a manufacturing cost of the device.SOLUTION: An opening detection mechanism 16 constituting a grip unit 10 has: a first rotor 46 connected to a grip handle 12; a second rotor 48 which is meshed with the first rotor 46, and rotates in conjunction with the first rotor; a magnet 50 fitted to the second rotor 48; and a detection sensor 52 which is arranged so as to oppose one end part 50a of the magnet 50 in an axial line direction of the second rotor 48. A magnetic body 90 separates from the detection sensor 52, and is movably arranged so that a distance between the magnetic body 90 and the magnet 50 is changed on an axial line G. Then, a magnitude Sc of magnetic flux density detected by the detection sensor 52 is changed by the movement of the magnetic body 90 to a direction orthogonal to the axial line G of the second rotor 48 by an operation of a changeover switch 18, and a switch position of the changeover switch 18 is confirmed on the basis of the magnitude Sc of the magnetic flux density.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a grip opening detection device for detecting the opening of a grip attached to a handlebar of a vehicle.

  Conventionally, there has been a grip opening detection device that is attached to a handlebar of a motorcycle, detects the opening of a grip operated by a driver, and outputs a control signal for performing engine drive control based on the opening. Are known.

  For example, as disclosed in Patent Document 1, a grip unit provided with such a grip opening detection device is provided with an opening sensor inside a switch case, and a handle is attached to a sensor rotor constituting the opening sensor. The grip is connected. Then, when the driver rotates the handle grip, the sensor rotor rotates integrally, and by detecting the rotation amount (rotation angle) of the sensor rotor, the opening degree of the grip is specified, and the opening degree sensor The detection signal at is output to the electrical component box through the wiring cable.

  In addition, the grip unit is provided with an engine stop switch for stopping the engine in an emergency, for example, in the switch case, and a switch signal when the engine stop switch is operated is electrically connected through a wiring cable different from the above. Is output to the product box.

JP 2017-133449 A

  In the grip unit described above, a wiring cable for outputting a detection signal from the opening sensor and a wiring cable for outputting a switch signal from the engine stop switch are required, respectively. Electric contacts are used.

  In recent years, the grip unit as described above is required to reduce the manufacturing cost and the number of parts and to improve the reliability.

  The present invention has been made in consideration of the above-described problems, and an object of the present invention is to provide a grip opening degree detection device capable of improving the reliability while reducing the number of parts and the manufacturing cost.

In order to achieve the above object, the present invention is based on an interlocking member that rotates in conjunction with a grip attached to a handlebar of a vehicle, and an interlocking operation based on a change in a magnetic field accompanying rotation of a magnet fixed to the interlocking member. Detecting means for detecting the rotation angle of the member, and the detecting means is disposed on the axis of the rotating shaft of the interlocking member and at a position away from the magnet in the axial direction of the rotating shaft, and is detected by the detecting means. A grip opening detection device that detects the opening of the grip based on the rotation angle of the interlocking member,
Arranging the magnetic body at a position on the axis of the rotation axis and separated from the magnet in the axis direction of the rotation axis,
The magnetic body is movably provided in conjunction with the operation of the switch installed on the handle including the handlebar, and the distance between the magnetic body and the magnet on the axis changes according to the operation of the switch. The switch operation state is detected by detecting the magnitude of the magnetic flux density.

  According to the present invention, in the grip opening degree detection device for detecting the opening degree of the grip attached to the handlebar of the vehicle, the axis of rotation of the interlocking member that rotates in conjunction with the grip is on the interlocking member. A magnetic body is disposed at a position spaced apart from the fixed magnet in the axial direction of the rotary shaft, and the magnetic body is movable in conjunction with an operation of a switch installed on the handle including the handle bar, and The distance from the magnet on the axis changes according to the operation of the switch.

  Therefore, by detecting the magnitude of the magnetic flux density that changes according to the operation of the switch by the detection means, it is possible to detect the operation state of the switch using the detection means for detecting the rotation angle of the grip. Therefore, in addition to the wiring cable for outputting the detection signal from the opening sensor, the parts compared with the grip unit according to the prior art that provided the wiring cable for connecting the engine stop switch and the electrical component box, The manufacturing cost can be reduced by reducing the number of points, and the electrical contact for switching the switch position of the switch is not necessary, so that there is no problem such as contact failure and the reliability can be improved. it can.

Further, the present invention detects the rotation angle of the interlocking member based on the interlocking member that rotates in conjunction with the grip attached to the handlebar of the vehicle, and the change in the magnetic field accompanying the rotation of the magnet fixed to the interlocking member. The detecting means is disposed on the axis of the rotating shaft of the interlocking member at a position away from the magnet in the axial direction of the rotating shaft, and the rotation angle of the interlocking member detected by the detecting means is A grip opening detection device for detecting the opening of a grip based on
A magnetic body that moves in conjunction with the operation of a switch installed on the handle including the handlebar is provided, and the magnetic body is on the axis of the rotating shaft of the interlocking member and away from the magnet in the axial direction of the rotating shaft. The switch operating state is detected by switching between the arranged state and the state where the magnetic body is not arranged on the axis of the rotating shaft by operating the switch, and detecting the magnitude of the magnetic flux density by the detecting means. It is characterized by that.

  Furthermore, the magnetic body may be a magnetic plate having a surface extending in a direction intersecting the axis of the rotation axis, and the magnetic plate may be moved in a direction perpendicular to the rotation axis by operating a switch.

  Furthermore, the magnetic body may include a plurality of surfaces that are stepped in the axial direction of the rotation axis.

  Furthermore, it is preferable that the magnetic body has an inclined surface inclined with respect to a surface orthogonal to the axis of the rotation axis.

  The magnetic body may be held by a slide member that is rotatable about a support shaft parallel to the axial direction of the rotation shaft, and the slide member may be connected to the switch via a link mechanism.

  According to the present invention, the following effects can be obtained.

  That is, in a grip opening degree detecting device that detects the opening degree of a grip attached to a handlebar of a vehicle, a magnet fixed to the interlocking member is on the axis of the rotation axis of the interlocking member that rotates in conjunction with the grip. The magnetic body is arranged at a position separated in the axial direction of the rotary shaft, and this magnetic body is moved in conjunction with the operation of the switch installed on the handle including the handlebar and on the axis according to the operation of the switch. The distance between the magnet and the magnet is changed. Therefore, the switch operating state can be detected by detecting the magnitude of the magnetic flux density that changes according to the operation of the switch by the detecting means.

  As a result, by making it possible to detect the switch operating state (switch position) using a detection means for detecting the rotation angle of the grip, compared to a grip unit including an opening degree detection device according to the prior art, The number of parts of the wiring cable can be reduced to reduce the manufacturing cost, and the electrical contact for changing the switch position of the switch becomes unnecessary, so that there is no problem such as poor contact and reliability is improved. Can be improved.

It is a disassembled perspective view of the grip unit containing the grip opening degree detection apparatus which concerns on embodiment of this invention. It is an external appearance perspective view which shows the opening degree detection mechanism in the grip unit of FIG. It is an expanded sectional view of the opening degree detection mechanism shown in FIG. 4A is an explanatory plan view of the opening degree detection mechanism as viewed from the axial direction of the rotation axis, and FIG. 4B shows a magnetic flux density vector formed by the X direction component and the Y direction component of the magnetic flux density detected by the detection sensor. FIG. 4C is a cross-sectional view taken along the line IVC-IVC in FIG. 4A. FIG. 5A is a cross-sectional explanatory diagram illustrating the positional relationship between the magnet, the detection sensor, and the magnetic body when the changeover switch is in the high position, and FIG. 5B is a cross-sectional view illustrating the positional relationship between the magnet, the detection sensor, and the magnetic body at the intermediate position. FIG. 5C is a cross-sectional explanatory diagram illustrating the positional relationship between the magnet, the detection sensor, and the magnetic body at the low position, and FIG. 5D illustrates a state in which the magnetic body is disposed at a position that does not face the magnet. FIG. It is a characteristic diagram which shows the relationship between the switch position of a changeover switch, and the magnitude | size of magnetic flux density. 7A is a cross-sectional explanatory view of an opening degree detection mechanism according to a first modification, FIG. 7B is a cross-sectional explanatory view of an opening degree detection mechanism according to a second modification, and FIG. 7C is a third modification example. It is sectional explanatory drawing of the opening degree detection mechanism which concerns on.

  A preferred embodiment of a grip opening degree detection device according to the present invention will be described below and described in detail with reference to the accompanying drawings. In FIG. 1, reference numeral 10 indicates a grip unit to which the grip opening degree detection device according to the embodiment of the present invention is applied. In the following description, a case where the grip unit (handle) 10 is applied to a motorcycle (hereinafter simply referred to as a vehicle) will be described.

  As shown in FIG. 1, the grip unit 10 covers a grip handle (grip) 12 provided at an end portion of a handle bar (not shown) gripped by a driver and an end portion of the grip handle 12. A switch case 14 provided in the switch case 14, an opening degree detection mechanism (grip opening degree detection device) 16 that is housed in the switch case 14 and detects the opening degree of the grip handle 12, and a switch provided in the switch case 14. And a link mechanism 20 that transmits the operation of the switch 18 to the opening degree detection mechanism 16.

  The grip handle 12 is formed, for example, in a cylindrical shape so as to cover the outer peripheral side of a handle bar (not shown), and is rotatably attached to the handle bar. And the edge part of the grip handle 12 used as the center side (arrow A direction) of the width direction of a vehicle is formed with the collar part 22 diameter-expanded to the radial direction outer side, and the 1st of the opening degree detection mechanism 16 mentioned later. 1 includes an engaging portion 24 engaged with the rotor 46.

  The switch case 14 includes first and second divided bodies 26 and 28 that can be divided in the longitudinal direction of the vehicle (in the directions of arrows C1 and C2). The switch case 14 is connected to a handlebar by bolts (not shown). The end of the grip handle 12 is inserted into the insertion hole 30 opened in the mating surface of the second divided bodies 26 and 28. And the collar part 22 of the grip handle 12 is rotatably supported by being inserted into the groove part 32 formed in the inside of the 1st and 2nd division body 26,28.

  The second divided body 28 is provided on the vehicle so as to be on the driver side (rear side, arrow C2 direction). For example, the output characteristics of the vehicle driving motor mounted on the vehicle are changed to switch the driving mode. For this purpose, a changeover switch 18 is provided.

  The changeover switch 18 is, for example, a high power mode that increases the output of the motor, an eco mode that suppresses the output of the motor, and a normal travel mode that provides an intermediate output between the high power mode and the eco mode. This is a 3-position switch that can be switched to mode. The changeover switch 18 is provided so that the operation unit 36 is exposed to the outside through the opening 34 opened in the second divided body 28, and as shown in FIG. A shaft (not shown) is inserted into the hole 38 opened in the center from the second divided body 28 and is supported rotatably.

  Further, as shown in FIG. 2, the changeover switch 18 has a projecting piece 40 extending in a direction away from the operation portion 36, and the projecting piece 40 is extended to the end of the projecting piece 40. A switch pin portion 42 protruding so as to be orthogonal to the present direction is provided and engaged with a cam ring 76 of the opening degree detection mechanism 16 described later.

  As shown in FIGS. 1 to 3, the opening degree detection mechanism 16 is, for example, a holder 44 held between the first and second divided bodies 26 and 28 of the switch case 14, and is rotatable with respect to the holder 44. The first rotor 46 that is supported by and connected to the end of the grip handle 12, the second rotor (interlocking member) 48 that meshes with and rotates in conjunction with the first rotor 46, and rotates with the second rotor 48. A magnet 50 and a detection sensor (detection means) 52 provided so as to face the end of the second rotor 48 are included.

  As shown in FIGS. 2 and 3, the holder 44 is formed in a substantially circular shape in cross section, and is orthogonal to the extending direction of the handle bar and the grip handle 12 (arrows A and B directions) inside the switch case 14. (See FIG. 1), inserted into the mounting groove 54 formed in the first and second divided bodies 26, 28, and fastened by the fixing screw 56.

  A cylindrical guide portion 58 is formed on one end side of the holder 44, which is the center side in the width direction of the vehicle (in the direction of arrow A), so as to protrude substantially in the center portion, and the through-hole extending along the inside thereof 60 is formed in a straight line so as to penetrate the holder 44.

  Further, a connector portion 62 for outputting a detection signal from a detection sensor 52 described later to the outside is provided at one end portion of the holder 44 at a position on the outer peripheral side of the guide portion 58.

  For example, the first rotor 46 is formed in a ring shape having a fitting hole 64 at the center, and is rotatably provided on the other end side of the holder 44 that is the outer side in the width direction of the vehicle (in the arrow B direction). The spring 66 having a resilient force in the circumferential direction is urged to rotate in a predetermined direction.

  The first rotor 46 is provided so as to be coaxial with the guide portion 58 on the other end side (in the direction of arrow B) of the holder 44, and the fitting hole 64 is aligned with the through hole 60. It is provided as follows.

  Further, an engaged portion 68 to be engaged with the engaging portion 24 of the grip handle 12 is formed at the other end portion of the first rotor 46, and the engaging portion 24 is engaged with the engaged portion 68. By being combined, the mutual rotational displacement is regulated.

  The first rotor 46 is in a state in which the relative rotation with respect to the end portion of the grip handle 12 is restricted by the engagement portion 24 of the grip handle 12 being engaged with the engaged portion 68. Connected with As a result, the first rotor 46 can rotate together with the grip handle 12.

  Further, as shown in FIG. 3, a first gear portion 70 having a plurality of gear teeth in a part along the circumferential direction is formed on the outer peripheral surface of the first rotor 46, and a second rotor described later is formed. 48.

  The second rotor 48 is formed in a disk shape having the second gear portion 72 on the outer peripheral surface, and is provided on the outer peripheral side of the first rotor 46, and the second gear portion 72 is a first portion of the first rotor 46. It meshes with the gear portion 70 and is supported rotatably via a rotation shaft 74 provided at the other end of the holder 44.

  The second rotor 48 is provided with a magnet 50 so as to face the other end of the holder 44. The magnet 50 is formed in a cylindrical shape and is arranged so as to be coaxial with the second rotor 48. The other end 50b on the side opposite to the holder 44 (in the direction of arrow B) is exposed to the end of the second rotor 48 and fixed to the second rotor 48 so as to protrude. Yes.

  The detection sensor 52 includes, for example, a Hall element that can detect a change in the magnetic field generated by the magnet 50 and convert it into an electrical signal. The detection sensor 52 is separated from the one end 50a of the magnet 50 by a predetermined interval on the axis G of the second rotor 48. In this way, it is disposed at one end of the holder 44 and along a plane orthogonal to the axis G. In other words, the detection sensor 52 is provided at a position on the axis G of the rotation shaft 74 that rotatably supports the second rotor 48 including the magnet 50.

  The detection sensor 52 is electrically connected to a connector portion 62 provided on the holder 44 via a lead wire (not shown), and the detected change in the magnetic field is used as an electrical signal (detection signal). To the controller (not shown).

  As shown in FIGS. 1 to 3, the link mechanism 20 is provided rotatably with respect to the holder 44 and is engaged with the changeover switch 18, and a slide that is engaged with the cam ring 76 and rotates. The changeover switch 18 is provided on the outer peripheral side of the cam ring 76 (see FIG. 2).

  The cam ring 76 is formed in a ring shape, is rotatably supported by being inserted into the outer peripheral side of the guide portion 58 in the holder 44, and has a U-shaped pin groove portion 80 protruding radially outward from the outer peripheral surface; A ring pin portion 82 provided at a position opposite to the pin groove portion 80 across the center of the cam ring 76 is provided.

  The pin groove portion 80 is engaged with the switch pin portion 42 of the changeover switch 18 from the outside in the radial direction, and the ring pin portion 82 is inserted into a pin hole 88 of the slide plate 78 described later.

  The slide plate 78 is formed in a plate shape and is provided so as to be movable along the holder 44, and has a shaft hole 86 into which a support shaft 84 formed in the holder 44 is inserted at one end thereof. A pin hole 88 is formed adjacent to the hole 86 and the ring pin portion 82 of the cam ring 76 is inserted. That is, the slide plate 78 is provided to be rotatable along the holder 44 on the other end side with one end pivotally supported by the support shaft 84 as a fulcrum.

  Further, on the other end side of the slide plate 78, a magnetic body 90 is provided on the end surface on the holder 44 side. The magnetic body 90 is made of, for example, a plate made of a magnetic material, faces the one end of the holder 44, is provided along a direction substantially orthogonal to the longitudinal direction of the slide plate 78, and the detection sensor 52. It is provided so as to be movable along a plane orthogonal to the axis G with the position opposite to the axis as the center.

  Further, as shown in FIGS. 3 and 5A, the magnetic body 90 is provided so as to be inclined at a predetermined angle with respect to a plane orthogonal to the axis G in the longitudinal direction, and one end portion 90a on the cam ring 76 side is provided. The other end 90b that is separated from the holder 44 and is opposite to the cam ring 76 is provided at a predetermined angle so as to be on the holder 44 side (arrow B direction).

  That is, the magnetic body 90 is inclined with respect to the sliding direction of the slide plate 78.

  The grip unit 10 to which the grip opening degree detection device according to the embodiment of the present invention is applied is basically configured as described above. Next, the grip handle 12 is rotated by the opening degree detection mechanism 16. The principle of detecting the angle and the principle of detecting the operation state of the changeover switch 18 will be described with reference to FIGS. 4A to 4C.

  First, as shown in FIG. 4A, the detection sensor 52 constituting the opening degree detection mechanism 16 includes two Hall elements provided on the axis G of the rotating shaft 74 of the second rotor 48, and one Hall element Can detect the magnetic flux density in the X direction, and the other Hall element is provided so as to detect the magnetic flux density in the Y direction perpendicular to the X direction.

  Then, the Hall element of the detection sensor 52 detects the X direction component Bx of the magnetic flux density and the Y direction component By of the magnetic flux density, respectively, and the angle θ formed by the X direction and the magnetic force line direction H of the magnet 50 is shown in FIG. 4B. Because of the correspondence relationship, the angle θ is calculated from the following equation (1), and this angle θ changes in conjunction with the amount of operation of the grip handle 12, so the rotation angle of the grip handle 12 ( Opening degree) can be detected.

  Further, in order to detect the magnitude of the magnetic flux density, as shown in FIG. 4B, the X direction component Bx and the Y direction component By of the magnetic flux density detected by the detection sensor 52 are used in the following formula 2. The magnitude Sc of the total vector of the magnetic flux densities is calculated.

  The magnitude Sc of the magnetic flux density is the magnitude of the magnetic flux density in the magnetic force line direction H of the magnet 50, and the distance L along the direction of the axis G between the magnet 50 and the magnetic body 90 'shown in FIG. 4C. Is constant, the magnitude Sc of the magnetic flux density is constant regardless of the change in the angle θ, and when the distance L is changed, the magnitude Sc of the magnetic flux density changes.

  Therefore, by moving the magnetic body 90 ′ in conjunction with the operation of the changeover switch 18 and changing the distance L of the magnetic body 90 ′ with respect to the magnet 50, the magnitude Sc of the magnetic flux density changes. The switch position of the changeover switch 18 can be detected based on the magnitude Sc.

  Next, the operation and effect of the grip unit 10 including the opening degree detection mechanism 16 detected by the detection principle as described above will be described.

  In the vehicle on which the grip unit 10 is mounted, the driver holds the grip handle 12 and rotates it toward the front side (in the direction of arrow D1 in FIG. 1), which is the rear side of the vehicle. The grip handle 12 is always urged by a spring 66 provided in the opening detection mechanism 16 so as to rotate toward the front side of the vehicle (in the direction of the arrow D2).

  Then, the rotation of the grip handle 12 causes the first rotor 46 of the opening detection mechanism 16 to rotate integrally, and the second rotor 48 meshed with the first gear portion 70 rotates about the rotation shaft 74 as a fulcrum. The rotation of the second rotor 48 causes the magnet 50 to rotate integrally, and after the amount of rotation of the magnet 50 is detected by the detection sensor 52, the amount of rotation is detected as a detection signal from the connector 62 to the controller (not shown) through the lead wire. Is output.

  In a controller (not shown), the opening degree of the grip handle 12 is specified from the rotation amount described above, and the vehicle driving motor is controlled based on the opening degree.

  Further, when the rotational force applied to the grip handle 12 by the driver is defeated, the grip handle 12 is moved forward of the vehicle (in the direction of arrow D2) under the elastic action of the spring 66 provided in the opening degree detection mechanism 16. When the rotation amount is detected by the detection sensor 52, a control signal is output from a controller (not shown) to the motor to be driven and controlled.

  Next, a case where the changeover switch 18 in the grip unit 10 is operated will be described. In the following description, the switch position when the normal travel mode is selected in the changeover switch 18 is set as an intermediate position, the switch position when the high power mode is selected is set as the high position, and the switch position when the eco mode is selected. This will be described as a low position.

  First, at the intermediate position of the changeover switch 18 in the normal travel mode, as shown in FIG. 2, the hole 38, the switch pin portion 42, and the center of the cam ring 76 of the changeover switch 18 are arranged in a substantially straight line. As shown in FIGS. 3 and 5B, the magnetic body 90 provided on the slide plate 78 has a central portion in the longitudinal direction facing the detection sensor 52, and the rotation axis of the second rotor 48. It exists in the state arrange | positioned on the axis line 74 of 74. FIG. At this time, on the axis G of the rotating shaft 74, the distance between the one end 50a of the magnet 50 and the magnetic body 90 is L2.

  Then, a magnetic field is generated between the magnet 50 disposed below the detection sensor 52 and the magnetic body 90, and the magnitude Sc of the magnetic flux density is detected by the detection sensor 52, and is read from the detection sensor 52 as a detection signal. The data is output to a controller (not shown) via the line / connector portion 62. As a result, it is confirmed that the changeover switch 18 is in the intermediate position and the normal travel mode is selected, and the motor is driven and controlled so as to have a preset output characteristic.

  Next, when switching from the intermediate position of the changeover switch 18 to the high power mode (high position) in which traveling can be performed with high output, the driver presses the one end 18 a side of the changeover switch 18. As a result, the changeover switch 18 rotates clockwise (in the direction of arrow E3 in FIG. 2) with a shaft (not shown) inserted through the hole 38 as a fulcrum, and the switch pin 42 is engaged accordingly. The cam ring 76 rotates counterclockwise (in the direction of the arrow E2) along the guide portion 58, and the slide plate 78 into which the switch pin portion 42 is inserted has the other end portion outside the holder 44 with the support shaft 84 as a fulcrum. It turns so that it may go to (arrow F1 direction).

  Then, as shown in FIG. 5A, the magnetic body 90 provided on the slide plate 78 moves to the left (arrow F1 direction) with respect to the detection sensor 52, and the magnet 50 and the magnetic body 90 on the axis G are The distance becomes L1, which is larger than the distance L2 at the intermediate position (L1> L2).

  As a result, on the axis G of the second rotor 48 and the magnet 50, the distance L1 between the magnet 50 and the magnetic body 90 becomes larger than the distance L2 at the intermediate position, so that the magnetic flux generated from the magnet 50 As shown in FIG. 6, the magnetic flux flowing through the magnetic body 90 is smaller than that in the intermediate position, and conversely, the magnetic flux in the vicinity of the magnet 50 is larger than that in the intermediate position. The magnitude Sc of the magnetic flux density detected by the detection sensor 52 is larger than the magnitude Sc of the magnetic flux density at the intermediate position.

  The magnitude Sc of the magnetic flux density is output as a detection signal from the detection sensor 52 to a controller (not shown), so that the changeover switch 18 is in the high position from the magnitude Sc of the magnetic flux density, and the high power mode is selected. Thus, drive control is performed to change the output characteristics of the vehicle drive motor to high output.

  Next, when switching from the intermediate position of the changeover switch 18 to the eco mode (low position) in which the vehicle travels while suppressing output, the driver presses the other end 18 b side of the changeover switch 18. As a result, the changeover switch 18 rotates counterclockwise (in the direction of arrow E4) with the shaft inserted in the hole 38 as a fulcrum, and the cam ring 76 engaged with the switch pin portion 42 is moved to the guide portion 58 accordingly. The slide plate 78 into which the switch pin portion 42 is inserted rotates clockwise along the arrow E1 direction, and the arrow F2 so that the other end side faces the guide portion 58 side of the holder 44 with the support shaft 84 as a fulcrum. Rotate in the direction.

  The magnetic body 90 provided on the slide plate 78 moves from the intermediate position shown in FIG. 5B to the right (arrow F2 direction) with respect to the detection sensor 52 as shown in FIG. Compared to the case of the high position, the distance along the axial direction between the magnet 50 and the magnetic body 90 is reduced to L3 (L3 <L2 <L1).

  As a result, when the magnet 50 and the magnetic body 90 come close to each other, the magnetic flux flowing through the magnetic body 90 out of the magnetic flux generated from the magnet 50 becomes larger than that in the intermediate position. As shown in FIG. 6, the magnitude Sc of the magnetic flux density detected by the detection sensor 52 is either in the high position or in the intermediate position. It will be smaller than that.

  The magnetic flux density is output as a detection signal from the detection sensor 52 to a controller (not shown), so that the changeover switch 18 is in the low position and the eco mode is selected from the magnitude Sc of the magnetic flux density. Is confirmed, and the drive control of the vehicle drive motor is performed so as to suppress the output by the control signal from the controller.

  As described above, in the present embodiment, in the grip unit 10 having the opening detection mechanism 16 that can detect the opening of the grip handle 12 in the vehicle, the changeover switch 18 that can switch the output characteristics of the vehicle drive motor. In the opening degree detection mechanism 16, an axis line with respect to the magnet 50 mounted on the second rotor 48 on the axis G of the rotation shaft 74 of the second rotor 48 that rotates in conjunction with the grip handle 12. The magnetic body 90 is arranged at a position separated in the direction (arrow A, B direction).

  The magnetic body 90 is movably provided in conjunction with the changeover switch 18 provided in the grip unit 10, and the magnetic body 90 and the magnet 50 face each other on the axis G by operation of the changeover switch 18. In addition, by providing the distance L (L1 to L3) between the two to change, the change of the magnetic flux density Sc caused by the change in the distance L (L1 to L3) is detected by the detection sensor 52 and switched. The operation state (switch position) of the switch 18 can be detected.

  Therefore, since the switch position of the changeover switch 18 can be detected by the output signal from the detection sensor 52 of the opening degree detection mechanism 16, a wiring cable for connecting the changeover switch 18 and the controller is not required. can do.

  As a result, in addition to the wiring cable for outputting the detection signal from the opening sensor, the component is compared with the grip unit according to the prior art that has the wiring cable for outputting the switch signal from the engine stop switch. The manufacturing cost can be reduced by reducing the number of points, and the electrical contact for switching the switch position of the changeover switch 18 can be eliminated, so that there is no problem such as poor contact and reliability. Can be improved.

  Further, the magnetic body 90 is configured to extend in a direction (arrow F1, F2 direction) intersecting with the axis G of the rotation shaft 74 that rotatably supports the second rotor 48. By making it movable in a direction orthogonal to the rotation shaft 74, for example, the distance L (L1 to L3) between the magnetic body 90 and the magnet 50 is changed in the axial direction, or the magnetic body 90 is magnetized in the axial direction. 50 and the case where the magnetic body 90 does not face the magnet 50 can be easily switched.

  Further, the magnetic body 90 and the magnet 50 in the axial direction are arranged by inclining the magnetic body 90 with respect to a plane orthogonal to the axis G of the rotation shaft 74 that rotatably supports the second rotor 48. The distance L (L1 to L3) can be easily changed.

  Further, since the distance L (L1 to L3) between the two changes in proportion to the amount of movement of the magnetic body 90, the magnitude Sc of the magnetic flux density passing through the detection sensor 52 is also changed in proportion to the amount of movement. be able to. Therefore, a detection signal can be output with a magnitude Sc of the magnetic flux density proportional to the operation amount of the changeover switch 18, and the switch position of the changeover switch 18 can be detected with high accuracy from the magnitude Sc of the magnetic flux density. It becomes.

  Furthermore, a switch that can output a linear detection signal in accordance with the operation of the changeover switch 18 can be realized.

  Furthermore, the magnetic body 90 is provided on a slide plate 78 that is rotatably provided with the support shaft 84 of the holder 44 as a fulcrum, and the slide plate 78 transmits the operating force from the changeover switch 18. Since it is connected via the cam ring 76, the magnetic body 90 can be easily slid by rotating the slide plate 78 by operating the changeover switch 18.

  Further, as shown in FIG. 5D, the magnetic body 90 is not on the axis G of the rotation shaft 74 in the second rotor 48 by the operation of the changeover switch 18 and faces the range where the magnetic force lines are generated from the magnet 50. When the switch is not disposed, there is almost no magnetic flux flowing from the magnet 50 to the magnetic body 90. Therefore, compared with the switch positions of the changeover switch 18 shown in FIGS. The detected magnetic flux increases, and accordingly, the magnitude Sc of the magnetic flux density increases.

  That is, when the changeover switch 18 is operated, the magnetic body 90 is arranged on the axis G of the rotating shaft 74 as shown in FIGS. 5A to 5C and the axis G is arranged on the axis G as shown in FIG. 5D. It is possible to detect the switch position of the change-over switch 18 from the magnitude Sc of the magnetic flux density detected by the detection sensor 52 by switching between the state where it is not performed.

  On the other hand, the opening degree detection mechanism 16 described above includes a magnetic body 90 that is inclined with respect to a plane orthogonal to the axial direction of the rotation shaft 74 that supports the second rotor 48, as shown in FIGS. 5A to 5D. However, the present invention is not limited to this.

  For example, as in the opening degree detection mechanism 100 shown in FIG. 7A, a magnet made of a pair of magnetic plates 102a and 102b that are orthogonal to the axis G of the magnet 50 and offset in the axial direction. The magnetic body 116 may be configured, or as a magnetic body 116 in which one magnetic plate 112a and the other magnetic plate 112b are integrally connected by a joint 114 as in the opening degree detection mechanism 110 shown in FIG. 7B. Also good.

  Thus, the distance L between the magnetic bodies 104 and 116 and the magnet 50 in the axial direction can be easily formed by forming the magnetic bodies 104 and 116 so as to be stepped in the axial direction (arrows A and B directions). It can be changed.

  That is, if the magnetic bodies 90, 104, and 116 have a shape that can change the distance L from the magnet 50 in accordance with the movement of the slide plate 78 that is rotated by the operation of the changeover switch 18, the shape of the magnetic bodies 90, 104, and 116 is particularly good. It is not limited.

  Furthermore, the magnetic bodies 90, 104, and 116 are not limited to the case where the magnetic bodies 90, 104, and 116 are arranged to face the detection sensor 52. For example, like the opening detection mechanism 120 shown in FIG. The magnetic body 122 may be disposed so as to face the other end 50b side (arrow B direction) of the magnet 50 opposite to the one end 50a of the magnet 50.

  In this configuration, the distance between the magnetic body 122 and the magnet 50 changes under the moving action of the magnetic body 122, and the magnitude Sc of the magnetic flux density increases as the distance between the magnetic body 122 and the magnet 50 decreases. Based on the magnitude Sc of the magnetic flux density detected by the detection sensor 52, the switch position of the changeover switch 18 can be confirmed.

  In other words, the relationship between the distance between the magnetic body 122 and the magnet 50 and the magnitude Sc of the magnetic flux density is opposite to that in the case where the magnetic body 90 is arranged above the detection sensor 52 (in the direction of arrow A). Can do.

  It should be noted that the grip opening degree detection device according to the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Grip unit 12 ... Grip handle 14 ... Switch case 16, 100, 110, 120 ... Opening degree detection mechanism 18 ... Changeover switch 20 ... Link mechanism 36 ... Operation part 44 ... Holder 46 ... 1st rotor 48 ... 2nd rotor 50 ... Magnet 52 ... Detection sensor 74 ... Rotating shaft 76 ... Cam ring 78 ... Slide plate 90, 104, 116, 122 ... Magnetic bodies 102a, 102b, 112a, 112b ... Magnetic plate L ... Distance

Claims (6)

An interlocking member that rotates in conjunction with a grip attached to a handlebar of a vehicle, and a detecting means that detects a rotation angle of the interlocking member based on a change in a magnetic field accompanying rotation of a magnet fixed to the interlocking member. The detecting means is disposed on the axis of the rotating shaft of the interlocking member and at a position away from the magnet in the axial direction of the rotating shaft, and the rotation of the interlocking member detected by the detecting means A grip opening detection device that detects the opening of the grip based on an angle,
A magnetic body is disposed on the axis of the rotating shaft and at a position separated from the magnet in the axial direction of the rotating shaft,
The magnetic body is movably provided in conjunction with an operation of a switch installed on a handle including the handle bar, and a distance between the magnetic body and the magnet on the axis is set according to the operation of the switch. A grip opening degree detecting device, wherein the operating state of the switch is detected by detecting a magnitude of magnetic flux density by the detecting means. An interlocking member that rotates in conjunction with a grip attached to a handlebar of a vehicle, and a detecting means that detects a rotation angle of the interlocking member based on a change in a magnetic field accompanying rotation of a magnet fixed to the interlocking member. The detecting means is disposed on the axis of the rotating shaft of the interlocking member and at a position away from the magnet in the axial direction of the rotating shaft, and the rotation of the interlocking member detected by the detecting means A grip opening detection device that detects the opening of the grip based on an angle,
A magnetic body that moves in conjunction with an operation of a switch installed on a handle including the handlebar, on the axis of the rotating shaft of the interlocking member, and away from the magnet in the axial direction of the rotating shaft Switching between the state in which the magnetic body is disposed and the state in which the magnetic body is not disposed on the axis of the rotation shaft by operating the switch, and detecting the magnitude of the magnetic flux density by the detecting means A grip opening degree detecting device characterized by detecting an operation state of the switch. In the grip opening degree detection device according to claim 1 or 2,
The magnetic body is a magnetic plate having a surface extending in a direction intersecting with the axis of the rotating shaft, and the magnetic plate is moved in a direction orthogonal to the rotating shaft by the operation of the switch. Grip opening detection device. In the grip opening degree detection device according to claim 3,
The grip opening detection device according to claim 1, wherein the magnetic body includes a plurality of surfaces that are stepped in the axial direction of the rotation shaft. In the grip opening degree detection device according to claim 3,
The grip opening detection device according to claim 1, wherein the magnetic body includes an inclined surface inclined with respect to a surface orthogonal to the axis of the rotation axis. In the grip opening degree detection device according to claim 3,
The magnetic body is held by a slide member that is rotatable about a support shaft parallel to the axial direction of the rotating shaft, and the slide member is connected to the switch via a link mechanism. Grip opening detection device.

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