JP2011230581A - Shift lever device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact by-wire shift lever device having improved operation reliability and vehicle mountability.SOLUTION: The shift lever device 1 includes: a lever block 2 that includes a magnet 230 arranged to rotate integrally with a shift lever 21 in accordance with an operation in an X-axis direction and rotate around a rotary axis 12 as a center of the rotating operation thereof; a base block 3 that turnably supports the lever block 2; and a magnetic sensor 11 arranged in the base block 3 so as to detect magnetism generated by the magnet 230. The magnet 230 is arranged so that a magnetic pole is directed toward the rotary axis 12 irrespective of the operation position of the shift lever 21 in the X-axis direction. The magnetic sensor 11 includes a magnetic detection unit which can be contained at a tip surface of the magnet 230, and is arranged closer to the rotation trajectory of the magnet 230 than the rotary axis 12.

Description

  The present invention relates to a shift lever device that is mounted on the vehicle to select a shift range of a vehicle and outputs an electrical signal corresponding to the operation of the shift lever.

  Conventionally, shift change means employing a mechanical link mechanism has been used in vehicle shift lever devices. In recent years, a shift lever device that electrically detects the operation of a shift lever has been proposed so as to meet the demand for computerization of in-vehicle devices. This shift lever device converts the detected operation of the shift lever into an electrical signal and outputs it.

  The shift lever device as described above is called a so-called by-wire type shift lever device capable of realizing a shift change by driving an actuator in accordance with the output signal. In the by-wire type shift lever device, it is not necessary to provide a complicated link mechanism between the driver's seat and the engine room, and it is only necessary to lay electrical wiring. By adopting such a shift lever device, the degree of freedom of design and installation of the shift operation mechanism in the vehicle can be significantly improved.

  As a by-wire type shift lever device, a guide rod extending so as to be coaxial with the shift lever beyond the rotation axis that forms the center of the rotation operation of the shift lever, and disposed at the tip of the guide rod An apparatus including a magnet member and a magnetic sensor arranged so as to face the magnet member has been proposed (see, for example, Patent Document 1). In this shift lever device, the operation of the shift lever is detected by detecting the displacement of the guide rod.

  However, the conventional shift lever device has the following problems. That is, since the magnetic sensor is disposed at a position beyond the rotation axis in the axial direction of the shift lever, the size of the apparatus may be increased in the axial direction, and it may be difficult to realize downsizing.

JP 2007-223384 A

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a shift lever device that realizes downsizing and improves vehicle mountability while maintaining high operation reliability.

The present invention is a shift lever device including a shift lever operated to select a shift range of a vehicle,
It forms the base of the shift lever and rotates integrally with the shift lever in response to an operation in a predetermined first direction, and rotates around a rotation shaft that forms the center of the rotation operation. A lever block including an arranged magnet;
A base block that supports the lever block in a rotatable state;
A magnetic sensor disposed on the base block so as to be able to detect an action direction of magnetism in a plane to which at least the first direction belongs among magnetism generated by the magnet; With
The magnet is disposed so that a polar direction is directed to the rotation axis regardless of an operation position of the shift lever in the first direction.
The magnetic sensor has the magnetic detection unit of a size that can be included inside the tip surface when compared with the size of the tip surface of the magnet,
The shift lever device is arranged closer to the rotation trajectory of the magnet than the rotation shaft (Claim 1).

  The magnet included in the shift lever device of the present invention is arranged to rotate around the rotation axis while maintaining the state in which the polar direction is directed toward the rotation axis. When the shift lever is operated in the first direction, the magnet rotates on the outer peripheral side of the magnetic sensor, and the direction of magnetic action on the magnetic detection unit changes. Based on the magnetic action direction detected by the magnetic sensor in the plane to which the first direction belongs, the operation of the shift lever in the first direction can be detected.

  In the shift lever device of the present invention, the magnetic sensor is arranged closer to (offset from) the rotation locus of the magnet than the rotation shaft. In this case, the axial dimension of the shift lever can be suppressed as compared with the case where the magnetic sensor is disposed on the opposite side of the shift lever beyond the rotation shaft. If the axial dimension of the shift lever can be suppressed, the shift lever device can be reduced in size, and the vehicle mountability can be improved.

  The peripheral magnetic field of the magnet is centered on the magnetic field lines extending linearly in the polar direction, and the magnetic field lines deviating from the magnetic field lines at the center are curved outward. The greater the deviation from the central magnetic field line, the greater the degree of curvature. In the present invention, by arranging the magnetic sensor closer to the magnet side than the rotation axis of the magnet, the above-described curvature of the magnetic field lines is effectively utilized, and excellent detection characteristics are realized as described below. is doing.

  In the shift lever device of the present invention, for example, when the magnet is positioned on a straight line connecting the rotation shaft and the magnetic detection unit (hereinafter, referred to as a reference position), it linearly extends in the polar direction. A central magnetic field line acts on the magnetic detection unit. When the magnet rotates and deviates from the reference position, a central magnetic field line moves toward the rotation axis, while a curved magnetic field line acts on the magnetic detection unit. The inclination of the action direction of the curved magnetic lines of force is larger than the inclination of the action direction of the central magnetic lines of force that coincides with the rotation angle of the magnet, that is, the operation angle (lever angle) of the shift lever. That is, in the magnetic sensor, an angle obtained by amplifying the lever angle (sensor detection angle) is detected as a magnetic action direction.

  In the shift lever device of the present invention, the magnetic lines of force that incline the lever angle with the amplified angle act on the magnetic detection unit. And as the rotational position of the magnet deviates from the reference position, the magnetic force lines that are deviated from the central magnetic force lines and have a large degree of curvature act on the magnetic detection unit, and the degree of amplification as described above increases. .

  As described above, in the present invention, the amount of change in the sensor detection angle corresponding to the change in the lever angle is increased by arranging the magnetic sensor close to the rotation locus. That is, the amount of change in the sensor detection angle is enlarged between the different operation positions in the first direction. Therefore, when detecting a specific operation position in the first direction, it is easy to distinguish from other operation positions, and stable detection with high reliability can be realized.

  Here, if the magnetic detection unit is larger than the tip surface, which is the end surface on the rotating shaft side of the magnet, the magnetic action acting from the magnet according to the position of the magnetic detection unit. The direction will vary greatly. In particular, in the present invention, since the curved magnetic field lines deviated from the central magnetic field lines are actively used as described above, there is a possibility that the variation in the direction of the magnetic action due to the difference in the position of the magnetic detection unit becomes more remarkable. is there. Therefore, in the present invention, the size of the magnetic detection unit is set to a size that can be included in the tip surface of the magnet, that is, a size smaller than the tip surface. In this way, if the magnetic detection unit is smaller than the tip surface of the magnet, variations in the magnetic action direction can be suppressed, and highly accurate detection is possible.

  As described above, the shift lever device of the present invention suppresses the size of the shift lever in the axial direction by devising the size of the magnetic detection unit, the arrangement of the magnetic sensor, etc. It is an apparatus having excellent characteristics with improved detection accuracy of the operation position of the shift lever.

  The rotation axis in the present invention is an axis that forms a virtual center of a rotation operation when the shift lever is operated in the first direction. When the magnet rotates around the rotation axis, the rotation plane of the magnet and the rotation plane of the shift lever may be the same plane or different planes. These rotational planes only need to be parallel to each other. Further, the fact that the pole direction of the magnet is directed toward the rotation axis means that the pole direction intersects the rotation axis with no limitation on the axial length.

The lever block and the base block are connected via a pair of shift shafts that are coaxial with the rotation shaft and divided into two in the axial direction.
The magnet is disposed so as to face a sensor space that is an axial gap between the pair of shift shafts,
Preferably, the base block has a pedestal formed so as to protrude to the shift lever side beyond the rotation axis in the sensor space, and the magnetic sensor is held on the pedestal. 2).
In this case, the magnetic sensor is arranged in the space of the gap between the pivot shaft and the shift lever, that is, the sensor space located inside the shift lever device. If the magnetic sensor is arranged in the sensor space, it is possible to suppress the influence of magnetic noise or the like that may act from the outside. Since the configuration necessary for suppressing the influence of magnetic noise can be simplified, downsizing can be easily realized.

In addition, the base block is a rocker supported by the base in a state where the base block can be rotated in response to an operation of the shift lever in a second direction orthogonal to the first direction. A moving table, and
The swing base supports the lever block via the pair of shift shafts,
Preferably, the base and the swing base are connected to each other via a pair of select shafts that are orthogonal to the rotation shaft and are divided into two in the axial direction through the sensor space. 3).
In this case, the shift lever can be operated not only in the first direction but also in the second direction.

Moreover, it is preferable that the magnetic sensor can measure magnetic components in three orthogonal directions.
In this case, the direction of the magnetic action on the magnetic detection unit can be detected three-dimensionally. If the magnetic action direction can be detected three-dimensionally, a two-dimensional operation of the shift lever combining the first direction and the second direction can be detected.

  The shift lever device of the present invention seeks to provide a shift lever device having excellent characteristics in which downsizing is realized and vehicle mounting property is improved and operation reliability is further improved.

1 is a perspective view showing a shift lever device in Embodiment 1. FIG. Sectional drawing which shows the structure of the shift lever apparatus in Example 1. FIG. Sectional drawing which shows the structure of the shift lever apparatus in Example 1. FIG. Sectional drawing which shows the structure of the shift lever apparatus in Example 1. FIG. FIG. 3 is an explanatory diagram for explaining the detection principle of the magnetic sensor in the first embodiment. FIG. 3 is an explanatory diagram illustrating a state in which a magnetic component in the X-axis (Y-axis) direction acts on the magnetic sensor in the first embodiment. Explanatory drawing explaining sensor detection angle (theta) sh in XZ plane in Example 1. FIG. Explanatory drawing explaining sensor detection angle (theta) sl in the YZ plane in Example 1. FIG. FIG. 3 is an explanatory diagram illustrating a magnetic field acting on a magnetic sensor in the first embodiment. FIG. 3 is an explanatory diagram illustrating a magnetic field acting on a magnetic sensor in the first embodiment. FIG. 3 is an explanatory diagram illustrating a magnetic field acting on a magnetic sensor in the first embodiment. 3 is a graph showing a relationship between a lever angle (magnet rotation angle) and a sensor detection angle in the first embodiment. 3 is a graph showing a relationship between a sensor position ratio and an amplification factor in Example 1.

The embodiment of the present invention will be specifically described with reference to the following examples.
(Example)
This example is an example related to the shift lever device 1 including the shift lever 21 operated to select the shift range of the vehicle. The contents will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the shift lever device 1 of the present example forms the base of the shift lever 21 and is integrated with the shift lever 21 in response to an operation in a predetermined first direction (hereinafter referred to as the X-axis direction). A lever block 2 including a magnet 230 disposed so as to rotate and rotate around a rotation shaft 12 that forms a virtual center of the rotation operation, and the lever block 2 in a rotatable state. A base block 3 to be supported, and a magnetic sensor 11 including a magnetic detection unit 110 (FIG. 5) for detecting magnetism and disposed on the base block 3 so as to detect the magnetism generated by the magnet 230 are provided. Yes.

The magnet 230 in the shift lever device 1 is disposed so that the polar direction is directed to the rotation shaft 12 regardless of the operation position of the shift lever 21 in the X-axis direction.
The magnetic sensor 11 has a magnetic detection unit 110 (FIG. 5) having a size that can be included inside the tip surface 231 when compared with the size of the tip surface 231 of the magnet 230. Further, the magnetic sensor 11 is disposed closer to the turning locus of the magnet 230 than the turning shaft 12.
This will be described in detail below.

  As shown in FIG. 1, the shift lever device 1 is installed on a center console between a driver seat and a passenger seat of a vehicle, a dash panel facing the driver, or the like so that the driver can operate the shift lever 21. It is a device. The shift lever device 1 of this example is a gate type shift lever device capable of operating the shift lever 21 in the X-axis direction (first direction) and the Y-axis direction (second direction) substantially orthogonal to each other. The X-axis direction is an operation direction in the front-rear direction as viewed from the driver, and the Y-axis direction is an operation direction in the left-right direction.

  In the shift lever device 1, as shown in FIG. 1, three rows of operation directions in the X-axis direction are set, and the rows in the X-axis direction can be switched by operating the shift lever 21 in the Y-axis direction. In the shift lever device 1 of this example, the center position where the gate 150 intersects the cross is the home position 151 (H position). The shift lever 21 is always biased toward the H position 151.

  For example, if the shift lever 21 (see FIG. 2) located at the H position 151 is operated to the right (Y-axis direction) and then pulled forward (X-axis direction), it can be operated to the D position and the D range can be selected. Yes (see FIG. 3). Thereafter, when the driver releases his hand from the shift lever 21, the shift lever 21 returns to the H position 151 while the state where the D range is selected is maintained. Further, for example, when the D range is selected, if the shift lever 21 at the H position 151 is pulled forward, it can be operated to the-position and the gear can be lowered by one step. Further, for example, when the D range is selected, the N range can be selected by moving the shift lever 21 of the H position 151 to the left and operating it to the N position and holding it for a predetermined time (see FIGS. 1 and 4). . Furthermore, the R range can be selected by pushing inward and operating to the R position and holding it for a predetermined time. The operation pattern of the shift lever 21 is not limited to this example. If the operation position detection method in the shift lever device 1 of this example is employed, it is possible to handle operations in all directions.

  As shown in FIGS. 1 and 2, the shift lever device 1 includes a lever block 2 to which a shift lever 21 is fixed, and a base block 3 that pivotally supports the lever block 2 while being rotatable in the X-axis direction. , A device housed in a protective cover 15. The base block 3 includes a base 31 that forms the bottom surface of the apparatus, and a swing base 32 that is pivotally supported by the base 31 via a select shaft 30. The lever block 2 is pivotally supported on the swing base 32 via the shift shaft 20. On the upper surface of the protective cover 15, a gate 150 that forms a movement path of the shift lever 21 is provided. Symbols representing shift ranges such as D and R are displayed at each shift position.

  As shown in FIGS. 1 and 2, the base 31 is a portion that forms the bottom of the apparatus. A pedestal 312 protruding in the height direction is provided at the center of the bottom surface having a rectangular shape. The sensor substrate 10 on which the magnetic sensor 11 is mounted is fixed on the upper surface of the pedestal portion 312. Screw holes 318 for attaching the protective cover 15 are formed in the four corners of the base 31. A pair of support pieces 311 are erected on the outer peripheral portion of the base 31 so as to face each other via a pedestal portion 312. Each of the pair of support pieces 311 is formed with a shaft hole through which the select shaft 30 is disposed.

  As shown in FIGS. 1 and 2, the oscillating table 32 is a member having a constant thickness and having a substantially rectangular annular shape. Of the two sets of side surfaces facing each other, a set of side surfaces facing the support piece 311 of the base 31 is provided with a base 321 protruding outward. The end surface of the pedestal 321 is a surface on which the select shaft 30 penetratingly disposed in the shaft hole of the support piece 311 is erected and fixed. A shift shaft 20 is erected on the other set of side surfaces. The shift shaft 20 and the select shaft 30 are erected at the same height in the thickness direction of the swing base 32. Therefore, in the shift lever device 1 of this example, the axial directions of the shift shaft 20 and the select shaft 30 belong to the same plane.

  As shown in FIGS. 1 to 4, the plunger 322 is held in a state in which the plunger 322 can be advanced and retracted on one side formed by the side surface on which the one shift shaft 20 is erected among the four sides surrounding the inner space of the swing table 32. A cylindrical pin holding portion 323 is erected. The plunger 322 is urged in the protruding direction by the urging force of the spring 324 accommodated in the pin holding portion 323. The plunger 322 gives a click feeling to the operation of the shift lever 21 in the X-axis direction in combination with the moderation member 325 (FIG. 1) disposed in the protruding direction. The moderation member 325 is a member provided with a concave depression corresponding to each shift position arranged in the X-axis direction.

  As shown in FIGS. 1 to 4, the lever block 2 includes a magnet holder 23 that extends along the axial direction of the shift lever 21, and a pair of arm portions 22 that face each other via the magnet holder 23. Yes. A shaft hole for penetrating the shift shaft 20 is bored at each end of the arm portion 22. The lever block 2 is connected to the swing base 32 via a shift shaft 20 penetratingly disposed in the shaft hole of the arm portion 22. A cylindrical magnet 230 having a diameter of 10 mm is disposed at the tip of the magnet holder 22. The pole direction of the magnet 230 coincides with the axial direction of the shift lever 21, and is always directed toward the rotating shaft 12 regardless of the rotating position of the magnet 230. In this example, the size of the tip surface 231 of the magnet 230 is about 10 mm in diameter.

  In this example, a magnet made of a ferrite magnet is used as the magnet 230. Instead of this, a magnet made of an alnico magnet, a neodymium magnet, or the like may be employed. Furthermore, it is also possible to employ a plastic magnet in which magnetic powder is bound to resin. Moreover, it can replace with the magnet which consists of permanent magnets, and can also employ | adopt an electromagnetic magnet. Further, in this example, the N pole faces the magnetic sensor 11, but it may be the S pole.

  As shown in FIGS. 1, 2, and 5, the sensor substrate 10 is a substrate on which a one-chip magnetic sensor 11 is mounted in addition to a CPU, ROM, RAM, and the like (not shown). The CPU executes data processing based on the detection result of the magnetic sensor 11 and outputs an electrical signal reflecting the operation of the shift lever 21. The ROM stores software programs executed by the CPU.

  As shown in FIGS. 5 and 6, the magnetic sensor 11 is an IC chip including magnetic detection elements 111 to 114 that detect magnetic components acting in the vertical direction. In the magnetic sensor 11, magnetic detection elements 111 to 114 having the same specifications are arranged at four locations on the outer periphery of a disk-shaped magnetic plate 115 made of a ferromagnetic material. A substantially circular area where the magnetic plate 115 and the magnetic detection elements 111 to 114 are arranged is the magnetic detection unit 110. The magnetic detection elements 111 and 112 are opposed to each other along the X-axis direction, and the magnetic detection elements 113 and 114 are opposed to each other along the Y-axis direction. In this example, the size of the magnetic detection unit 110 is set to about 0.5 mm to 2.0 mm in diameter with respect to the tip surface 231 of the magnet 230 having a diameter of about 10 mm.

  A case where a magnetic vector B composed of magnetic components Bx, By, Bz along the X axis, the Y axis, and the Z axis acts on the magnetic sensor will be described with reference to FIGS. Of the magnetic components, Bz acting in the vertical direction acts almost equally on all the magnetic detection elements 111 to 114. On the other hand, when the magnetic component Bx along the X-axis acts on the magnetic sensor 11, as shown in FIG. Then, a magnetic force αBx (α is a constant) in the reverse direction in the vertical direction acts on the magnetic detection elements 111 and 112 arranged in the X-axis direction. Similarly, the magnetic force αBy in the reverse direction in the vertical direction acts on the magnetic detection elements 113 and 114 arranged in the Y-axis direction with the same specifications as the X-axis direction due to the magnetic component By along the Y-axis. Become.

At this time, magnetic forces B1 to B4 acting on the magnetic detection elements 111 to 114 are expressed by the following equations.
B1 = αBx + Bz
B2 = −αBx + Bz
B3 = αBy + Bz
B4 = −αBy + Bz

Bx, By, and Bz are calculated as follows based on the above simultaneous equations.
Bx = (B1-B2) / 2α
By = (B3-B4) / 2α
Bz = (B1 + B2 + B3 + B4) / 4
Thus, according to the magnetic sensor 11, it is possible to detect any three-dimensional direction of action for magnetism acting on the magnetic detection unit 110.

  In the shift lever device 1 of the present example configured as described above, as shown in FIGS. 1 and 2, the inner space of the oscillating base 32 forms a sensor space 100 for magnetic detection. In this sensor space 100, a pedestal 312 of the base 31 to which the sensor substrate 10 is fixed protrudes. In this example, the distance L1 between the magnetic detection unit 110 of the magnetic sensor 11 mounted on the sensor substrate 10 and the rotating shaft 12 is set to 10 mm.

  When the shift lever 21 is positioned at the H position 151, the magnet 230 and the magnetic sensor 11 serve as a reference position aligned in a straight line along the axial direction of the shift lever 21. At this reference position, the gap between the magnetic detection unit 110 and the tip surface 231 of the magnet 230 is 1.5 mm. Further, the distance L2 between the tip surface of the magnet 230 and the rotation shaft 12 is 11.5 mm. Further, at this reference position, the projected shape when the magnetic detection unit 110 is projected onto the tip surface 231 (diameter 10 mm) of the magnet 230 along the axial direction is positioned at the inner center of the tip surface 231 of the magnet 230. It has become.

  In the shift lever device 1, as shown in FIG. 1, the magnet 230 rotates on the outer peripheral side of the magnetic sensor 11 in accordance with the operation of the shift lever 21 in the X-axis direction. At this time, the direction of magnetic action on the magnetic detection unit 110 changes. According to the magnetic component Bx along the X axis and the magnetic component Bz along the Z axis detected by the magnetic sensor 11, the inclination of the magnetic vector (magnetism acting direction) in the plane orthogonal to the Y axis as shown in FIG. θsh can be calculated as the sensor detection angle.

  Based on the inclination θsh of the magnetic vector, the rotation angle of the magnet 230, that is, the lever angle that is the operation angle of the shift lever 21 can be known. If the lever angle is used, the operation position of the shift lever 21 in the X-axis direction can be detected. Regarding the operation in the Y-axis direction, the direction of the magnetic action acting on the magnetic detection unit 110 changes according to the operation in the same manner as described above. According to the magnetic component By along the Y axis and the magnetic component Bz along the Z axis, as shown in FIG. 8, the inclination θsl of the magnetic vector in the plane perpendicular to the X axis can be calculated as the sensor detection angle. The operation position of the shift lever 21 in the axial direction can be detected.

  In the shift lever device 1 of this example, the magnetic sensor 11 is disposed closer to the magnet 230 side than the rotation shaft 12. Such an arrangement of the magnetic sensor 11 produces (1) a magnetic effect and (2) a shape effect as described below.

  First, (1) the magnetic effect will be described. When the shift lever 21 is positioned at the H position 151, the magnetic force line that linearly extends in the normal direction from the tip surface 231 of the magnet 230 acts on the magnetic detection unit 110 as shown in FIG. 9. On the other hand, when the shift lever 21 is operated in the X-axis direction as shown in FIGS. 10 and 11, the magnetic lines extending linearly in the normal direction are directed to the rotating shaft 12, while being closer to the magnet 230 than the rotating shaft 12. A curved line of magnetic force acts on the magnetic detection unit 110 to be offset.

  The magnetic lines of force extending radially from the tip surface 231 of the magnet 230 are linear in the normal direction, while the magnetic lines deviating from the normal direction are curved outward. As the deviation from the normal direction increases, the degree of curvature increases. Therefore, as is known from the comparison between FIG. 10 and FIG. 11, as the rotation angle (lever angle) of the magnet 230 increases, the magnetic field lines that are further deviated from the normal direction and act on the magnetic detection unit 110. Become. The degree of such tendency varies depending on the position of the magnetic sensor 11 in the gap between the rotating shaft 12 and the magnet 230, that is, the sensor position ratio (L1 / L2).

  FIG. 12 is a graph showing a simulation result of how the relationship between the lever angle and the sensor detection angle changes according to the sensor position ratio (L1 / L2). In this simulation, the sensor position ratio (L1 / L2) is changed from 0 to 0.87. In the figure, the horizontal axis indicates a lever angle equal to the rotation angle of the magnet 230, and the vertical axis indicates a sensor detection angle that is a detection angle by the magnetic sensor 11.

  As known from the simulation result of FIG. 12, the sensor detection angle by the magnetic sensor 11 increases as the sensor position ratio (L1 / L2) increases. For example, in the case of a lever angle of 5 degrees, the sensor position ratio is 5 degrees, 0.40 is 5.68 degrees, and 0.87 is 11.55 degrees. That is, as the sensor position ratio increases, the amplification factor, which is the ratio of the sensor detection angle to the lever angle, gradually increases. As shown in FIG. 13, the amplification factor increases in a quadratic curve as the sensor position ratio increases.

  In the shift lever device 1 of this example, the sensor position ratio (L1 / L2) is set to 0.87. Referring to the simulation result of FIG. 12, an amplification factor of about 2.3 times can be obtained. As the amplification factor increases, the amount of change in the sensor detection angle with respect to the change in the lever angle increases. If the same sensor detection angle change amount is to be secured with an amplification factor of 1, for example, the distance (operation stroke) between the position 151 and the + position is increased by 2.3 times to change the lever angle change amount. It is necessary to expand itself. On the other hand, if the amplification factor can be set high, the change amount of the sensor detection angle can be increased without increasing the operation stroke, and the H position 151 and the + position can be easily distinguished. If the adjacent shift positions can be easily distinguished, the detection accuracy can be improved and high operation reliability can be ensured. Moreover, if a high amplification factor can be ensured, the influence of magnetic noise that may act from the outside can be relatively suppressed.

  In the shift lever device 1 of this example, a further magnetic effect is produced by being closer to the magnet 230 side than the rotating shaft 12. In the shift lever device 1, in order to bring the magnetic sensor 11 closer to the magnet 230 side, the magnetic sensor 11 is arranged in the sensor space 100 located inside the device. Thus, by arranging the magnetic sensor 11 inside the device, a large distance from the outer peripheral surface of the shift lever device 1 to the magnetic sensor 11 can be secured, and the influence of magnetic noise that may act from the outside can be suppressed. A magnetic effect is obtained. Since the configuration necessary for suppressing the influence of magnetic noise can be simplified, it is advantageous in terms of downsizing the apparatus.

  Next, (2) the shape effect will be described. If the magnetic sensor 11 is arranged closer to the shift lever 21 side than the rotation shaft 12, compared to the case where the magnetic sensor 11 is arranged on the opposite side of the shift lever 21 via the rotation shaft 12, the height direction, That is, the apparatus size in the axial direction of the shift lever 21 can be suppressed, and downsizing can be realized. As a result, the shift lever device 1 of this example is a device that saves space and has good vehicle mountability.

  As described above, the shift lever device 1 of this example is a device having excellent characteristics in which downsizing is realized and vehicle mounting property is improved, and operation reliability is further improved.

In addition, as a magnetic sensor, it can replace with this example and can also employ | adopt 1-chip IC which incorporated three magnetic detection elements arrange | positioned along the mutually orthogonal X-axis, Y-axis, and Z-axis.
The sensor position ratio (L1 / L2) is preferably set as large as possible within the range in which the magnetic sensor 11 can properly detect the magnetism of the magnet 230. The sensor gap (interval between the magnet 230 and the magnetic sensor 11) is preferably set to about 1.5 to 3.0 mm for a ferrite magnet, for example.

  In this example, the diameter of the tip surface 231 of the magnet 230 is set to about 10 mm, while the diameter of the magnetic detection unit 110 is set to 0.5 to 2.0 mm. The sizes of the tip surface 231 of the magnet 230 and the magnetic detection unit 110 are not limited to this example. In this example, the circular tip surface 231 and the magnetic detection unit 110 are adopted. However, the tip surface 231 and the magnetic detection unit 110 are not only circular, but also polygonal shapes such as an ellipse and a rectangle. Any shape is acceptable. Needless to say, a different shape such as a quadrangular magnetic detection unit 110 may be set for the circular tip surface 231. When the size of the tip surface 231 is compared with the size of the magnetic detection unit 110, the size and the shape of the magnetic detection unit 110 can be contained within the tip surface 231. Regardless, the effects of the present invention are realized.

  As described above, specific examples of the present invention have been described in detail as in the embodiments. However, these specific examples merely disclose an example of the technology included in the scope of claims. Needless to say, the scope of the claims should not be construed as limited by the configuration, numerical values, or the like of the specific examples. The scope of the claims includes techniques obtained by variously modifying or changing the specific examples using known techniques, knowledge of those skilled in the art, and the like.

DESCRIPTION OF SYMBOLS 1 Shift lever apparatus 10 Sensor board 100 Sensor space 11 Magnetic sensor 110 Magnetic detection part 111-114 Magnetic detection element 115 Magnetic plate 12 Rotating shaft 15 Protective cover 150 Gate 151 H position 2 Lever block 20 Shift shaft 21 Shift lever 230 Magnet 231 Tip surface 3 Base block 30 Select shaft 31 Base 32 Swing base 321 Base

Claims (4)

A shift lever device including a shift lever operated to select a shift range of a vehicle,
It forms the base of the shift lever and rotates integrally with the shift lever in response to an operation in a predetermined first direction, and rotates around a rotation shaft that forms the center of the rotation operation. A lever block including an arranged magnet;
A base block that supports the lever block in a rotatable state;
A magnetic sensor disposed on the base block so as to be able to detect an action direction of magnetism in a plane to which at least the first direction belongs among magnetism generated by the magnet; With
The magnet is disposed so that a polar direction is directed to the rotation axis regardless of an operation position of the shift lever in the first direction.
The magnetic sensor has the magnetic detection unit of a size that can be included inside the tip surface when compared with the size of the tip surface of the magnet,
A shift lever device, wherein the shift lever device is disposed closer to the turning locus of the magnet than the turning shaft. In Claim 1, the lever block and the base block are connected to each other via a pair of shift shafts that are coaxial with the rotation shaft and divided in two in the axial direction.
The magnet is disposed so as to face a sensor space that is an axial gap between the pair of shift shafts,
The base block has a pedestal formed so as to protrude to the shift lever side beyond the rotation axis in the sensor space, and the magnetic sensor is held on the pedestal. Lever device. 3. The base block according to claim 2, wherein the base block is supported by the base in a state where the base block can be rotated in response to an operation of the shift lever in a second direction orthogonal to the first direction. A swing table,
The swing base supports the lever block via the pair of shift shafts,
The shift is characterized in that the base and the oscillating base are connected to each other via a pair of select shafts that are orthogonal to the rotation shaft and are divided into two in the axial direction through the sensor space. Lever device.   4. The shift lever device according to claim 3, wherein the magnetic sensor can measure magnetic components in three orthogonal directions.

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