JP5081129B2 - Switch device for side stand of motorcycle - Google Patents

Description

The present invention relates to a switch device for a side stand of a two-wheeled vehicle , and more particularly to a switch device for a side stand of a two-wheeled vehicle that can suppress the thickness of the switch device.

  2. Description of the Related Art Conventionally, there is a switch device that outputs an on signal or an off signal according to the rotation of a side stand of a two-wheeled vehicle. Such a switch device, for example, outputs an off signal to an ECU (Engine Control Unit) of a two-wheeled vehicle when the side stand is standing, thereby preventing the engine from starting. Thereby, it is possible to prevent the driver from tipping over by accidentally running the two-wheeled vehicle while keeping the side stand upright and bringing the side stand into contact with the road surface or the like.

  Such a switching device includes a rotating member that rotates with the rotation of the side stand and has a magnet surface with magnetism of S and N poles, and a part of the magnet surface of the rotating member. And a reed switch that performs electrical switching by contacting or separating a pair of metal terminals by magnetism from the magnet surface (see, for example, Patent Document 1).

  However, in a switching device including a reed switch, switching is performed using mechanical contact. Therefore, a contact failure of a metal terminal may occur due to an impact caused by a fall of a two-wheeled vehicle, and accurate switching may not be performed. There is.

  Therefore, a switch device has been devised in which a magnet is provided on a rotating member that rotates with the rotation of the side stand, and a Hall IC (Integrated Circuit) is provided at a position facing the magnet (see, for example, Patent Document 2). In this switch device, switching is performed using a change in magnetic field instead of mechanical contact, so that switching reliability can be improved.

JP 2004-355903 A

JP 2008-130314 A

  However, in the switch device described in Patent Document 2, the substrate on which the Hall IC is provided and the rotating member on which the magnet is provided face each other in the direction perpendicular to the substrate, and the thickness of the switch device (the direction perpendicular to the substrate). Length). When the thickness of the switch device is large, the switch device stands out and adversely affects the design of the two-wheeled vehicle on which the switch device is mounted.

  This invention is made | formed in view of such a condition, and enables it to suppress the thickness of a switch apparatus.

A switching device for a side stand of a two-wheeled vehicle according to one aspect of the present invention includes a substrate on which a magnetic sensor is installed, a rotating unit on which a magnet is installed, which is relatively rotatable with respect to the substrate, and a side stand of the two-wheeled vehicle. mounted, with the rotation of the side stand, and a holder which rotates together with the rotating portion, the rotating portion is rotated in said magnetic sensor installation surface in the same plane of the substrate, the position of the magnet With the rotation of the rotating part, the position of the substrate facing the magnetic sensor in a direction parallel to the installation surface of the magnetic sensor and the position facing the magnetic sensor in a direction parallel to the installation surface are separated. This is a switch device for a side stand of a two-wheeled vehicle that switches to a different position .

In the side stand switch device for a two-wheeled vehicle according to one aspect of the present invention, a substrate on which a magnetic sensor is installed, a rotating unit on which a magnet is installed, which is relatively rotatable with respect to the substrate, and a side stand for a two-wheeled vehicle attached to, along with the rotation of the side stand, and the holder is provided that rotates together with the rotating portion, the rotating portion is rotated within the installation surface in the same plane of the magnetic sensor of the substrate, of the magnet The position is a position facing the magnetic sensor in a direction parallel to the installation surface of the magnetic sensor on the substrate and a position facing the magnetic sensor in a direction parallel to the installation surface as the rotation unit rotates. Switch to a position away from .

  Therefore, the thickness of the switch device can be suppressed.

  This magnetic sensor can be constituted by an MR sensor or a Hall IC.

  As described above, according to one aspect of the present invention, the thickness of the switch device can be suppressed.

  1 and 2 are perspective views showing an external configuration example of an embodiment of a side stand to which the present invention is applied.

  FIG. 1 is a perspective view showing an example of the external configuration of the entire side stand, and FIG. 2 is a perspective view showing an example of the external configuration of the side stand near the switch device.

  As shown in FIG. 1A, the upper end portion 10 </ b> A of the side stand 10 is attached to a bracket 12 that is fixed to a frame (not shown) of a two-wheeled vehicle by bolts or the like with bolts 11. However, the bracket 12 and the upper end portion 10A of the side stand 10 are not crimped. Accordingly, the side stand 10 rotates about the central axis of the bolt 11 with respect to the bracket 12.

  Moreover, as shown to FIG. 1A, the switch apparatus 13 is comprised by the case part 21, the holder 22, etc. FIG. The detailed configuration of the switch device 13 will be described later. An upper portion of the case portion 21 of the switch device 13 in the figure is attached to the bracket 12 by a rod-like bracket 14 that is inserted through the frame of the two-wheeled vehicle. Further, the lower portion of the case portion 21 in the figure is attached to the upper end portion 10 </ b> A of the side stand 10 via the holder 22. Accordingly, the switch device 13 rotates with respect to the bracket 12 as the side stand 10 rotates.

  FIG. 1B shows an external configuration of the entire side stand 10 viewed from an angle different from that in FIG. 1A.

  When the side stand 10 configured as shown in FIG. 1 is standing, as shown in FIG. 2A, the longitudinal direction of the side stand 10 is the z direction substantially perpendicular to the ground. In FIG. 2, the direction of the central axis of the bolt 11 parallel to the ground is the x direction, the direction perpendicular to the x direction and parallel to the ground is the y direction, and the direction perpendicular to the ground is the z direction.

  On the other hand, when the side stand 10 is stored, as shown in FIG. 2B, the longitudinal direction of the side stand 10 is the y direction substantially parallel to the ground. Therefore, when the side stand 10 is changed from the standing state to the retracted state, the side stand 10 is rotated clockwise in the figure around the x direction, and when the side stand 10 is changed from the stored state to the standing state, the side stand 10 is moved in the x direction. Rotate counterclockwise in the figure around the axis.

  3 and 4 show a detailed configuration example of the switch device 13.

  FIG. 3 shows the switch device 13 in an assembled state, and FIG. 4 shows the switch device 13 in an exploded manner for easy understanding of the detailed configuration of the switch device 13. 3A shows the external configuration of the switch device 13, and FIG. 3B shows the switch device 13 with the cover 30A removed in order to explain the internal configuration of the switch device 13.

  As shown in FIGS. 3A and 3B, in the switch device 13, the case portion 21 includes a cover 30 </ b> A and a case 30 </ b> B, a holder 32 (rotating portion) provided with a magnet holding portion 33 and the like, and a magnetic sensor 35 and the like. It is configured by storing the substrate 34 that has been formed.

  As shown in FIG. 3B, the holder 32 accommodated in the cover 30 </ b> A and the case 30 </ b> B is disposed such that the surface facing the magnet holding portion 33 is in contact with the bottom surface of the case 30 </ b> B. Moreover, the board | substrate 34 is arrange | positioned so that the surface facing 34 A of installation surfaces of the magnetic sensor 35 may contact the bottom face of case 30B, as shown to FIG. 3B. That is, the holder 32 and the substrate 34 face each other in a direction parallel to the installation surface 34A.

  Further, on the surface side of the holder 32 facing the magnet holding portion 33, four protrusions (not shown) are provided around a hole portion 32A described later. As shown in FIG. 4, the four protrusions are fitted into four hole portions 22 </ b> B around the hole portion 22 </ b> A corresponding to a hole portion 32 </ b> A (details will be described later) provided in the holder 22. As a result, the holder 32 rotates with respect to the substrate 34 as the side stand 10 rotates.

  The magnet holding portion 33 of the holder 32 exists at a position away from the position facing the magnetic sensor 35 when the side stand 10 is in the standing state, and is disposed on the magnetic sensor 35 when the side stand 10 is in the retracted state. It arrange | positions so that it may exist in the position which opposes. A magnet (not shown) is disposed in the magnet holding portion 33 of the holder 32.

  The holder 22 is attached to the side stand 10 by the side stand holding part 22C.

  Further, as shown in FIG. 4, the cover 30A is provided with a hole 21A, and the case 30B is provided with a hole 21B at a position facing the hole 21A. A collar 31 is inserted through the holes 21A and 21B. The collar 31 is also inserted into a hole portion 32 </ b> A of the holder 32 provided inside the case portion 21 and a hole portion 22 </ b> A of the holder 22. Thereby, the rotation of the holder 32 is stably performed around the central axis of the collar 31.

  The cover 30A and the case 30B are provided with harness outlets 21C and 21D, respectively, and the harness outlets 21C and 21D are opposed to each other. A harness (not shown) that connects the magnetic sensor 35 and the ECU of the two-wheeled vehicle is passed through the hole 21E constituted by the harness outlets 21C and 21D. With this harness, an electrical signal output from the magnetic sensor 35 is transmitted to an ECU of a two-wheeled vehicle.

  Next, the thickness of the case portion 21 will be described with reference to FIG.

  5A and 5B, the upper part is a plan view of the case portion as viewed from the cover side, and the lower part is an AA cross-sectional view of the upper plan view.

  First, as shown in FIG. 5A, the substrate 51 on which the magnetic sensor 51A is installed and the holder 52 on which the magnet holding part 52A is installed are perpendicular to the installation surface of the magnetic sensor 51A as in the conventional switch device. If it is installed to face in any direction, the thickness T1 of the case portion that houses the substrate 51 and the holder 52 becomes relatively thick.

  On the other hand, as shown in FIG. 5B, in the switch device 13, the substrate 34 on which the magnetic sensor 35 is installed and the holder 32 on which the magnet holding unit 33 is installed with respect to the installation surface 34 </ b> A of the magnetic sensor 35. It is installed facing the parallel direction. Therefore, the thickness T2 of the switch device 13 is smaller than the case of FIG. 5A by, for example, a difference ΔT between the thickness T1 of the switch device of FIG. That is, the thickness T2 of the switch device 13 is suppressed.

  As a result, the design of a two-wheeled vehicle to which the switch device 13 is attached can be improved. In addition, the layout of motorcycles will be superior. Furthermore, the switch device 13 becomes lighter and can contribute to the improvement of the fuel consumption of the two-wheeled vehicle.

  As the magnetic sensor 35, an MR sensor or a Hall IC can be used.

  The MR sensor is a sensor using a magnetoresistive effect element (MR element), and detects a change in magnetic field or the presence or absence of a magnetic substance as a change in voltage. The direction of the magnetic field that can be detected by the MR sensor is a direction parallel to the installation surface, as shown in FIG. 6A.

  The Hall IC detects a magnetic field and outputs a digital signal representing the magnetic field. The direction of the magnetic field that can be detected by the Hall IC is a direction perpendicular to the installation surface, as shown in FIG. 6B.

  As described above, when the MR sensor is used as the magnetic sensor 35 and when the Hall IC is used, the direction of the magnetic field that can be detected is different, so the magnetization direction of the magnet installed in the magnet holding unit 33 is changed. There is a need to.

  Next, a method for detecting the state of the side stand 10 by the switch device 13 will be described with reference to FIGS.

  First, as shown in FIG. 7, a case will be described in which the side stand 10 is in an upright state and the magnet holding portion 33 is located away from a position facing the magnetic sensor 35. FIG. 7 shows the switch device 13 with the cover 30A removed as viewed from the cover 30A side. The same applies to FIG. 9 described later.

  As shown in FIG. 7, the magnet holding portion 33 is away from the position facing the magnetic sensor 35 (in the example of FIG. 7, from the position facing the magnetic sensor 35 with the central axis of the hole 32 </ b> A as the center). 8A and 8B, regardless of whether the magnetic sensor 35 is an MR sensor or a Hall IC, the magnet 70 and the magnetic sensor 35 Therefore, the magnetic field formed by the magnet 70 is not detected by the magnetic sensor 35, and the magnetic sensor 35 outputs an off signal.

  This off signal is supplied to the ECU of the two-wheeled vehicle via the harness, and the ECU performs control so as not to permit the start of the engine of the two-wheeled vehicle according to the off signal. As a result, when the side stand 10 is in the standing state, the engine of the two-wheeled vehicle is not started, and the fall due to the side stand 10 contacting the road surface or the like during traveling can be prevented.

  When the magnetic sensor 35 is an MR sensor, as shown in FIG. 8A, a magnet installed in the magnet holding portion 33 so that the N pole and the S pole are adjacent to each other in a direction parallel to the installation surface of the magnetic sensor 35. 70 is magnetized. FIG. 8A shows the positional relationship between the substrate 34 and the magnet 70 when the switch device 13 is viewed from the cover 30A side. The same applies to FIG. 10A described later.

  Further, when the magnetic sensor 35 is a Hall IC, as shown in FIG. 8B, the magnetic sensor 35 is installed in the magnet holder 33 so that the N pole and the S pole are adjacent to each other in a direction perpendicular to the installation surface 34A of the magnetic sensor 35. The magnet is magnetized. FIG. 8B shows the positional relationship between the substrate 34 and the magnet 70 when the switch device 13 is viewed from a direction parallel to the installation surface 34A. The same applies to FIG. 10B described later.

  Next, as shown in FIG. 9, the case where the side stand 10 is in the retracted state and the magnet holding portion 33 exists at a position facing the magnetic sensor 35 will be described.

  In this case, even when the magnetic sensor 35 is an MR sensor as shown in FIG. 10A or when the magnetic sensor 35 is a Hall IC as shown in FIG. 10B, the magnet 70 and the magnetic sensor 35 Therefore, the magnetic field formed by the magnet 70 is detected by the magnetic sensor 35, and the magnetic sensor 35 outputs an ON signal.

  This on signal is supplied to the ECU of the two-wheeled vehicle via the harness, and the ECU controls to allow the start of the engine of the two-wheeled vehicle according to the on signal. As a result, when the side stand 10 is in the retracted state, the engine of the two-wheeled vehicle can be started.

  However, the range of the rotation angle of the magnet 70 when the magnetic sensor 35 outputs an ON signal (hereinafter referred to as a detection angle range) is the material of the magnet 70, the size of the magnet 70, the detection characteristics of the magnetic sensor 35, and the magnet 70. It differs depending on the positional relationship of the magnetic sensor 35, the rotation radius of the magnet 70, the temperature, the type of the magnetic sensor 35, and the like.

  For example, as shown in FIG. 11, the distance between the center of the holder 32 and the center P of the magnetic sensor 35 is 13.5 mm, the distance between the center P of the holder 32 and the surface on the center P side of the magnet 70 is 5 mm, In the case where the outer diameter of 32 is 20 mm, the inner diameter is 8 mm, the size of the magnet 70 is 8 mm long × 2 mm wide × 3 mm high, the material is ferrite, and the magnetic sensor 35 is an MR sensor, it is detected from the experimental results. The angle range is a range of θ = ± 25 degrees with reference to the position where the magnet 70 faces the magnetic sensor 35.

  11 shows the holder 32 and the substrate 34 when the switch device 13 is viewed from the cover 30A side, and the lower part of FIG. 11 is an AA cross-sectional view of the upper part of FIG.

  On the other hand, when the magnetic sensor 35 is a Hall IC, the detectable magnetic field direction is different from that of the MR sensor. Therefore, in order to obtain the same detection angle range, the magnetic sensor 35 is compared with the MR sensor. Therefore, it is necessary to shorten the distance between the magnetic sensor 35 and the magnet 70. That is, when the other conditions are the same and the magnetic sensor 35 is a Hall IC, the detection angle range is narrower than when it is an MR sensor.

  Therefore, when it is desired to have a certain width in the state of the side stand 10 that is detected as the retracted state, it is desirable to employ an MR sensor as the magnetic sensor 35, and the retracted state of the side stand 10 can be detected more accurately and the vehicle can be overturned. When it is desired to prevent the property as much as possible, it is desirable to employ a Hall IC as the magnetic sensor 35.

  Next, an example of the dimensions of the switch device 13 when an MR sensor or a Hall IC is adopted as the magnetic sensor 35 will be described with reference to FIGS.

  As shown in FIG. 12, when the thickness of the switch device 13 is T, the length in the longitudinal direction of the case portion 21 of the switch device 13 is L, and the length in the direction perpendicular to the direction is H, the thickness T, the length The lengths L and H are as shown in FIG. 13, for example.

  That is, as shown in FIG. 13, when an MR sensor is employed as the magnetic sensor 35, the thickness T is 9 mm, and the lengths L and H are 26 mm and 45 mm, respectively. On the other hand, when a Hall IC is employed as the magnetic sensor 35, the thickness T is 15 mm, and the lengths L and H are 26 mm and 40 mm, respectively.

  As shown in FIG. 13, when a Hall IC is employed as the magnetic sensor 35, the cost is lower than when an MR sensor is employed. Therefore, when a Hall IC is employed as the magnetic sensor 35, the detection angle range becomes narrow as described above, but there is an advantage that the cost is low.

  In the above description, when the side stand 10 is in the retracted state, the magnet holding portion 33 is disposed so that the magnetic sensor 35 and the magnet holding portion 33 are opposed to each other. However, the side stand 10 is in the standing state. In some cases, the magnet holding portion 33 may be arranged so that the magnetic sensor 35 and the magnet holding portion 33 are positioned opposite to each other. In this case, the ECU of the two-wheeled vehicle does not allow the engine to start when the on signal is supplied from the magnetic sensor 35, and permits the engine to start when the off signal is supplied.

  The embodiment of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.

It is a perspective view which shows the example of the whole external appearance structure of one Embodiment of the side stand to which this invention is applied. It is a perspective view which shows the example of an external appearance structure of switch apparatus vicinity among side stands. It is a figure which shows the detailed structural example of the switch apparatus of the assembled state. It is a figure which shows the detailed structural example of the switch apparatus of the state decomposed | disassembled. It is a figure explaining the thickness of a case part. It is a figure explaining the magnetic field direction which a magnetic sensor can detect. It is a figure which shows the position of the magnet in case the side stand is in the standing state. It is a figure which shows a magnetic field in case the side stand is in the standing state. It is a figure which shows the position of the magnet in case the side stand is in the retracted state. It is a figure which shows a magnetic field in case the side stand is in the retracted state. It is a figure explaining the example of a detection angle range. It is a figure explaining the definition of the dimension of a switch apparatus. It is a figure which shows the example of the dimension of a switch apparatus.

Explanation of symbols

13 Switch device 32 Holder 34 Substrate 34A Installation surface 35 Magnetic sensor 70 Magnet

Claims (2)

A substrate on which a magnetic sensor is installed;
A rotating part in which a magnet is installed and which is rotatable relative to the substrate ;
It is attached to a side stand of a two-wheeled vehicle, and includes a holder that rotates together with the rotating part as the side stand rotates .
The rotating portion is rotated in said magnetic sensor installation surface in the same plane of the substrate,
The position of the magnet is a position facing the magnetic sensor in a direction parallel to the installation surface of the magnetic sensor of the substrate, and a position of the magnetic sensor in a direction parallel to the installation surface as the rotation unit rotates. Switch to a position away from the opposite position
Switch device for side stands of motorcycles . The switch device for a side stand of a two-wheeled vehicle according to claim 1, wherein the magnetic sensor is configured by an MR sensor or a Hall IC.

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