Rotary position sensor

Abstract

A rotational position sensor (1), which is capable of transmitting rotational motion from the outside to a rotating body with high precision and capable of inspecting without affecting a shaft hole, is provided with: a rotating body (10) provided with a cylindrical shaft body section (11) having a shaft hole (10h), and a flange section (12) provided continuously with the shaft body section (11) and extending to the outside in the radial direction of the shaft body section (11); a housing (20) having a bearing part (21) through which the shaft body part (11) of the rotating body (10) is inserted; and a measuring unit (30) that measures the relative position of the rotating body (10) with respect to the housing (20), and an engagement unit (15) is provided at the peripheral edge of the flange unit (12).

Description

Technical Field

[0001] The invention relates to a rotation position sensor for measuring the relative position of a rotating body relative to a housing. Background Art

[0002] As a rotation position sensor for detecting the rotation of a rotating body, an electronic component capable of suppressing poor connection between a substrate and a terminal is disclosed in Patent Document 1. The electronic component comprises: a substrate; a terminal electrically and mechanically connected to the substrate; a housing for accommodating the substrate; and a holding structure for holding the terminal in the housing.

[0003] Patent document 2 discloses a rotary electronic component, in which the rotation angle position of the rotary component and the output value output according to the rotation angle position are close to a proportional relationship, which can improve the accuracy. The rotary electronic component comprises: a rotary component that can rotate around an axis; a holding component that holds the rotary component to be rotatable; a plurality of terminals fixed to the holding component; and a mechanism that changes the electrical state between the plurality of terminals according to the rotation angle position of the rotary component, and the rotary component comprises: a first rotary body; and a second rotary body that is positioned relative to the first rotary body and has a bearing or a shaft.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2019-197762

[0007] Patent Document 2: Japanese Patent Application Publication No. 2020-188146 Summary of the invention

[0008] Problems to be solved by the invention

[0009] When inspecting a rotation position sensor, a predetermined operating fixture is used to rotate the rotating body by a predetermined angle, and it is determined whether the measured value corresponding to the rotation angle is within a predetermined range. Therefore, it is necessary to accurately transmit the rotational motion from the operating fixture to the rotating body. In addition, if the operating fixture is inserted into the shaft hole provided in the rotating body during the inspection to transmit the rotational force to the rotating body, there is a concern about the influence on the shaft hole.

[0010] The present invention has been made in view of such actual circumstances, and an object of the present invention is to provide a rotational position sensor that can transmit a rotational motion to a rotating body from the outside with high accuracy and can perform inspection without affecting a shaft hole.

[0011] Means for solving problems

[0012] One embodiment of the present invention is a rotational position sensor, characterized in that it comprises: a rotating body, comprising a cylindrical shaft portion having an axial hole, and a flange portion continuously arranged with the shaft portion and extending radially outward from the shaft portion; a housing, comprising a bearing portion for the shaft portion of the rotating body to be inserted; and a measuring portion for measuring the relative position of the rotating body relative to the housing, wherein a snap-fit ​​portion is arranged on the peripheral portion of the flange portion.

[0013] According to such a configuration, the rotating body can be rotated by applying force from the outside to the engaging portion located at the peripheral portion of the rotating body, and the operating accuracy of the rotating body is improved compared with the case where force is applied near the central axis of the rotating body. In addition, since measurement can be performed without contacting the shaft hole, the influence on the shaft hole is avoided during inspection.

[0014] In the above-mentioned rotation position sensor, it is also possible to configure that the shaft hole has a holding portion, the holding portion is used to accommodate and hold an operating shaft, and the operating shaft has a non-circular cross section when viewed in the direction along the rotation axis of the rotating body. The functional inspection of the measuring part is performed without inserting the component used in the inspection into the shaft hole. Therefore, the inspection is performed without affecting the holding portion that accommodates and holds the operating shaft.

[0015] In the above-mentioned rotational position sensor, the engaging portion may also be configured such that the engaging portion has a first engaging portion and a second engaging portion arranged across the rotation axis of the rotating body, and when viewed in the direction along the rotation axis of the rotating body, the first engaging portion and the second engaging portion have mutually line-symmetrical shapes with a first virtual line along the radial direction of the rotating body as a symmetry axis. Thus, in the case of a configuration in which a component applying a force to the rotating body is brought into contact with the two engaging portions to operate the rotating body, the two engaging portions have line-symmetrical shapes, so that the component can be brought into contact with the rotating body with good symmetry, thereby improving the operability of the component.

[0016] In the above-mentioned rotation position sensor, it is also possible to configure that, when viewed in the direction along the rotation axis of the rotating body, the engaging portion has an extended protrusion extending radially outward of the rotating body. Thus, compared with the case where the engaging portion is recessed inside the rotating body, the internal space of the rotating body becomes larger, thereby improving the configuration freedom of the measuring portion.

[0017] In the above rotational position sensor, the extended protrusion may have a protrusion protruding in a direction intersecting the direction in which the extended protrusion protrudes when viewed in the direction along the rotation axis of the rotating body. The protrusion is easier to contact than other parts, thereby improving the installability of the component applying force to the rotating body.

[0018] In the above rotational position sensor, the protrusion may be formed of a curved line when viewed in the direction along the rotation axis of the rotating body. This improves the contact stability between the member applying force to the rotating body and the engaging portion.

[0019] In the above-mentioned rotation position sensor, it is also possible to configure that, when viewed in the direction along the rotation axis of the rotating body, the notch portion having a shape in which the flange portion is partially notch is provided continuously with the extended protrusion portion. If the notch portion exists, it is easy for the component that applies force to the rotating body to contact the engaging portion. In addition, by providing the extended protrusion portion continuously with the notch portion, even if the extended protrusion degree of the extended protrusion portion is small, it is possible to stably ensure the contact between the component that applies force to the rotating body and the engaging portion, thereby making the sensor miniaturized.

[0020] In the above-mentioned rotational position sensor, it is also possible to configure that, when viewed in the direction along the rotation axis of the rotating body, the engaging portion has a line-symmetrical shape with a second virtual line passing through the inside of the engaging portion along the radial direction of the rotating body as the symmetry axis. In the case of a configuration in which a component applying a force to the rotating body engages with one engaging portion to operate the rotating body, the engaging portion having such a line-symmetrical shape can improve the operability of the component.

[0021] In the above-mentioned rotational position sensor, the housing may also be configured to have a protrusion, and the protrusion has an overlapping portion that overlaps with the engaging portion of the rotating body located at the reference position when viewed in the direction along the rotation axis of the rotating body. By arranging the positioning component in a manner that contacts the overlapping portion of the protrusion and the engaging portion, the rotating body can be positioned at the reference position.

[0022] In the above-mentioned rotation position sensor, the protrusion may have a portion located outside the engaging portion when viewed in the direction along the rotation axis of the rotating body. If the protrusion has a portion located outside the engaging portion, it is easy to visually confirm whether the rotating body is in the reference position from the direction along the rotation axis.

[0023] In the above-mentioned rotation position sensor, the measuring part may also be configured to include a fixed measuring part mounted on the housing and a movable measuring part mounted on the rotating body, so that by rotating the rotating body, the movable measuring part rotates relative to the fixed measuring part of the housing, and the change in the relative position of the rotating body and the housing is measured.

[0024] In the above-mentioned rotation position sensor, the fixed measuring part may have a resistor, and the movable measuring part may have a slider that is in sliding contact with the resistor. Thus, the resistance value changes according to the position of the sliding contact between the resistor of the fixed measuring part and the slider of the movable measuring part, and the change in the relative position of the rotating body and the housing is measured.

[0025] In the above-mentioned rotation position sensor, the movable measuring part may have a resistor, and the fixed measuring part may have a slider that is in sliding contact with the resistor. Thus, the resistance value changes according to the position of the sliding contact between the resistor of the movable measuring part and the slider of the fixed measuring part, and the change in the relative position of the rotating body and the housing is measured.

[0026] The rotation position sensor may include a crushing rib provided on the inner wall of the shaft hole. Thus, even if the rotating body has a shaft hole with the crushing rib, the component applying force to the rotating body can be engaged with the engaging portion without being affected by the crushing rib.

[0027] In the above-mentioned rotation position sensor, the engaging portion may be configured to engage with an operating fixture of a functional inspection device of the measuring portion. Thus, by engaging the operating fixture at the engaging portion located at the peripheral portion of the rotating body, the operating accuracy of the operating fixture is improved. In addition, since the measurement can be performed without contacting the shaft hole, the influence on the shaft hole during inspection can be avoided.

[0028] Effects of the Invention

[0029] According to the present invention, it is possible to provide a rotational position sensor that can transmit a rotational motion to a rotating body from the outside with high accuracy and can perform inspection without affecting the shaft hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a perspective view illustrating the rotation position sensor according to the present embodiment.

[0031] Figure 2 It is an exploded perspective view illustrating the structure of the rotational position sensor according to the present embodiment.

[0032] Figure 3 It is a perspective view illustrating an example of a rotating body.

[0033] Figure 4 It is a top view illustrating an example of a rotating body.

[0034] Figure 5 It is a partially enlarged top view of the engaging portion.

[0035] Figure 6 This is a schematic diagram for explaining the functional inspection of the measuring unit.

[0036] Figure 7 It is a schematic diagram for explaining another example of the functional inspection of the measuring unit.

[0037] Figure 8 This is a schematic diagram for explaining an example of positioning of a rotating body and a casing.

[0038] Fig. 9It is a front view showing the overall design of the rotation position sensor according to the present embodiment.

[0039] Fig.10 It is a rear view showing the overall design of the rotation position sensor according to the present embodiment.

[0040] Fig.11 It is a right side view showing the overall design of the rotation position sensor according to the present embodiment.

[0041] Fig.12 It is a left side view showing the overall design of the rotation position sensor according to the present embodiment.

[0042] Fig.13 It is a plan view showing the overall design of the rotation position sensor according to the present embodiment.

[0043] Fig.14 It is a bottom view showing the overall design of the rotation position sensor according to the present embodiment.

[0044] Fig.15 yes Fig. 9 A magnified view of the AB part.

[0045] Fig.16 yes Fig. 9 A partial enlarged view of the CD.

[0046] Fig.17 It is a perspective view showing the overall design of the rotation position sensor according to the present embodiment.

[0047] Fig.18 This is a front view showing a partial design (part 1) of the rotation position sensor according to the present embodiment.

[0048] Fig.19 This is a rear view showing a partial design (part 1) of the rotational position sensor according to the present embodiment.

[0049] Fig. 20 It is a right side view showing a partial design (part 1) of the rotation position sensor according to the present embodiment.

[0050] Fig.21 This is a left side view showing a partial design (part 1) of the rotation position sensor according to the present embodiment.

[0051] Fig. 22 It is a plan view showing a partial design (part 1) of the rotation position sensor according to the present embodiment.

[0052] Fig.23 It is a bottom view showing a partial design (part 1) of the rotational position sensor according to the present embodiment.

[0053] Fig.24yes Fig.18 A partial enlarged view of EF.

[0054] Fig.25 yes Fig.18 A partial enlarged view of GH.

[0055] Fig.26 This is a perspective view for showing a partial design (part 1) of the rotation position sensor according to the present embodiment.

[0056] Fig. 27 This is a front view showing a partial design (part 2) of the rotational position sensor according to the present embodiment.

[0057] Fig.28 It is a rear view showing a partial design (part 2) of the rotational position sensor according to the present embodiment.

[0058] Fig.29 It is a right side view showing a partial design (part 2) of the rotation position sensor according to the present embodiment.

[0059] Fig.30 This is a left side view showing a partial design (part 2) of the rotational position sensor according to the present embodiment.

[0060] Fig.31 It is a plan view showing a partial design (part 2) of the rotation position sensor according to the present embodiment.

[0061] Fig.32 It is a bottom view showing a partial design (part 2) of the rotational position sensor according to the present embodiment.

[0062] Fig.33 yes Fig. 27 A partial enlarged view of IJ.

[0063] Fig.34 yes Fig. 27 A magnified view of the KL part.

[0064] Fig.35 This is a perspective view for showing a partial design (part 2) of the rotational position sensor according to the present embodiment. DETAILED DESCRIPTION

[0065] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that in the following description, the same reference numerals are given to the same components, and the description of components that have been described once will be appropriately omitted.

[0066] (Configuration of a Rotational Position Sensor)

[0067] Figure 1 It is a perspective view illustrating the rotation position sensor according to the present embodiment.

[0068] Figure 2 It is an exploded perspective view illustrating the structure of the rotational position sensor according to the present embodiment.

[0069] The rotational position sensor 1 of the present embodiment includes a rotating body 10 , a housing 20 , and a measuring unit 30 , and is a device that measures the relative position of the rotating body 10 with respect to the housing 20 by the measuring unit 30 .

[0070] The rotating body 10 includes a cylindrical shaft body portion 11 having an axial hole 10h, and a flange portion 12 which is continuously provided with the shaft body portion 11 and extends radially outward of the shaft body portion 11. In addition, in the present embodiment, one radial direction of the rotating body 10 is also referred to as an X direction, another radial direction orthogonal to the X direction is referred to as a Y direction, and a direction along the rotation axis AX of the rotating body 10 (the axial direction of the axial hole 10h) is referred to as a Z direction.

[0071] The shaft hole 10h of the shaft body 11 is provided with a holding portion 13, which accommodates and holds the operating shaft S having a non-circular cross section when viewed in the Z direction. For example, the cross section of the operating shaft S viewed in the Z direction is substantially D-shaped, or has a substantially D-shaped convex portion (a portion serving as a key). The holding portion 13 receives the operating shaft S having such a cross section, and transmits the rotation operation of the operating shaft S to the rotating body 10.

[0072] The housing 20 is an exterior part and has a bearing 21 through which the shaft 11 of the rotating body 10 is inserted. The bearing 21 has a cylindrical part that is rotatably and slidably fitted with the shaft 11 extending in the Z direction. The housing 20 also accommodates the measuring unit 30 therein.

[0073] The measuring unit 30 measures the relative position of the rotating body 10 with respect to the housing 20. The measuring unit 30 includes a fixed measuring unit 31 mounted on the housing 20 and a movable measuring unit 32 mounted on the rotating body 10. The fixed measuring unit 31 includes a substrate 311 and a resistor pattern 312 formed on the substrate 311. The substrate 311 is provided with a hole 311h, and the substrate 311 is accommodated in the housing 20 by fitting the hole 311h into the bearing 21.

[0074] A plurality of terminals 313 are mounted on the housing 20. The plurality of terminals 313 are connected to a substrate 311 to which the measuring unit 31 is fixed, respectively, via connecting members 314. The connecting members 314 also play a role in making the pattern 312 formed on the substrate 311 and the terminals 313 electrically conductive.

[0075] The movable measuring part 32 has a slider 322 formed of a ring-shaped conductive member. The movable measuring part 32 is mounted around the shaft body 11 on the housing 20 side of the rotating body 10. The movable measuring part 32 is arranged between the rotating body 10 and the fixed measuring part 31, and rotates together with the rotation of the rotating body 10. By the rotation of the movable measuring part 32, the slider 322 and the pattern 312 of the fixed measuring part 31 are in sliding contact. By the rotation of the movable measuring part 32, the contact position between the pattern 312 and the slider 322 changes, and the path of the resistor of the pattern 312 that is connected to the plurality of terminals 313 changes. As a result, the resistance value between the plurality of terminals 313 changes, and the relative position of the measuring rotating body 10 and the housing 20 changes.

[0076] In addition, in the above-mentioned measuring part 30, an example is shown in which the pattern 312 of the substrate 311 provided in the fixed measuring part 31 is formed by a resistor, and the movable measuring part 32 is provided with a sliding member 322 that is in sliding contact with the resistor. However, it is also possible to have a structure in which a pattern of a resistor is provided in the movable measuring part 32 and a sliding member that is in sliding contact with the pattern of the resistor is provided in the fixed measuring part 31.

[0077] In the rotation position sensor 1 of this embodiment, the engaging portion 15 is provided on the peripheral portion of the flange portion 12. When the function of the measuring portion 30 of the rotation position sensor 1 is checked, when the rotating body 10 is rotated by an external force, it is generally considered that the operating shaft S is inserted into the shaft hole 10h and the rotational force is applied by the operating shaft S. However, if this method is used, the shaft hole 10h may be affected.

[0078] As in the present embodiment, by providing the engaging portion 15, the rotating body 10 can be rotated by applying force to the engaging portion 15 from the outside, and the function inspection can be performed without contacting the shaft hole 10h. In addition, since the engaging portion 15 is located at the peripheral portion of the rotating body 10, compared with operating at the portion of the shaft hole 10h provided at the rotation center of the rotating body 10, operating with the engaging portion 15 provided on the radially outer side of the rotating body 10 can improve the operating accuracy.

[0079] (Fitting part)

[0080] Figure 3 It is a perspective view illustrating an example of a rotating body.

[0081] Figure 4 It is a top view illustrating an example of a rotating body.

[0082] Figure 5 It is a partially enlarged top view of the engaging portion.

[0083] When viewed from the Z direction, the engaging portion 15 provided at the peripheral portion of the flange portion 12 of the rotating body 10 has an extended protrusion 151 extending outward in the radial direction (for example, the Y direction) of the rotating body 10. In the present embodiment, the engaging portion 15 has a first engaging portion 15A and a second engaging portion 15B arranged across the rotation axis AX of the shaft body 11. That is, the first engaging portion 15A and the second engaging portion 15B are arranged on both sides of the Y direction relative to the center of the rotating body 10. Moreover, the first engaging portion 15A and the second engaging portion 15B each have an extended protrusion 151 extending outward in the Y direction. In the configuration having the extended protrusion 151, compared with the case where the engaging portion 15 is recessed on the inner side of the rotating body 10, the internal space of the rotating body 10 becomes larger, so the configuration freedom of the measuring unit 30 is improved.

[0084] When viewed in the Z direction (the direction along the rotation axis AX), the first engaging portion 15A and the second engaging portion 15B are configured to be mutually connected with a first virtual line L1 (see FIG. 1 ) along the X direction of the rotating body 10. Figure 4 ) is a line-symmetrical shape with respect to the axis of symmetry. By making the first engaging portion 15A and the second engaging portion 15B have line-symmetrical shapes, the member applying force to the rotating body 10 can be brought into contact with the rotating body 10 with good symmetry, thereby rotating the rotating body 10.

[0085] The extended protrusion 151 has a protrusion 152 protruding in the X direction when viewed in the Z direction (the direction along the rotation axis AX). That is, the extended protrusion 151 extending and protruding in a convex shape from the peripheral portion of the flange portion 12 to the outside in the Y direction has a portion protruding in the X direction from the middle of the extended protrusion portion in the Y direction, that is, the protrusion 152. Therefore, the length of the extended protrusion 151 in the X direction is configured to gradually increase from the root toward the outside in the Y direction. Compared with other parts, the protrusion 152 is easier to contact with the components, so it is easy to make the components that apply force to the rotating body 10 from the outside engage with the engaging portion 15.

[0086] Here, the protrusion 152 is preferably formed by a curved line C when viewed in the Z direction. If the protrusion 152 is formed by the curved line C, the contact between the member applying force to the rotating body 10 and the engaging portion 15 becomes point contact, and the contact stability is improved.

[0087] In addition, when viewed from the Z direction, a notch portion 121 having a shape in which the flange portion 12 is partially notched may be provided continuously with the extended protrusion 151. The notch portion 121 is a portion cut out at a position inside the position corresponding to the outer circumference of the flange portion 12 (e.g., a linear portion).

[0088] (Functional inspection of measuring unit)

[0089] Figure 6This is a schematic diagram for explaining the functional inspection of the measurement unit.

[0090] In the rotational position sensor 1, the measurement unit 30 measures the relative position (e.g., rotational angle, amount of rotation, presence or absence of rotation, etc.) of the rotating body 10 with respect to the housing 20. Therefore, it is necessary to check whether the measurement value is accurately output from the measurement unit 30 according to the rotational movement of the rotating body 10 through a functional inspection device.

[0091] In the functional inspection of the measurement unit 30 of the functional inspection device, it is checked whether the measurement value output from the measurement unit 30 when the rotating body 10 rotates at a preset angle is within a specified range. Additionally, in the case of performing a durability test through the functional inspection device, the rotating body 10 is repeatedly rotated back and forth at a specified angle for a specified time, and it is checked whether the measurement value at this time is within the specified range. In either inspection, the rotating body 10 is rotated from the outside.

[0092] In the case where the shaft hole 10h is provided in the rotating body 10 as in the past, it is considered to insert the inspection operation shaft S into the shaft hole 10h to rotate it, but there is a possibility of causing damage such as scratches (Japanese: 傷) or breakage to the shaft hole 10h. The shaft hole 10h is actually the part where the operation shaft S is inserted when the rotational position sensor 1 is mounted on the product. Therefore, if scratches or breakage occur in the shaft hole 10h during inspection, it may have an adverse effect on the operation accuracy during actual use.

[0093] Moreover, in the case where the crush ribs 10b are provided on the inner surface of the shaft hole 10h, the crush ribs 10b cannot be crushed at the inspection stage. Therefore, it is necessary to avoid the crush ribs 10b (for example, insert the inspection operation shaft S into the shaft hole 10h shallower so as not to reach the crush ribs 10b). Therefore, when inserting the operation shaft S (refer to Figure 1 ) into the shaft hole 10h, it cannot be inserted to a deeper position, so it is easy to generate shaking. Since the shaft hole 10h is located at the rotational center part of the rotating body 10, it is greatly affected by the shaking between the operation shaft S and the shaft hole 10h, and it is difficult to finely adjust, and the inspection accuracy cannot be improved.

[0094] In the rotational position sensor 1 of the present embodiment, since the engaging portion 15 is provided on the rotating body 10, a force can be applied from the outside using the engaging portion 15 located at the peripheral portion of the rotating body 10. Since the engaging portion 15 is provided at the peripheral portion of the rotating body 10, even if there is looseness between this part and the component applying force to the rotating body 10, compared with the case where there is shaking at the rotational center part (shaking between the operation shaft S and the shaft hole 10h), the influence on the rotational movement is not significant. Additionally, since the measurement can be performed without contacting the shaft hole 10h, it is possible to avoid affecting the shaft hole 10h during inspection.

[0095] In Figure 6 In the example shown, an operating jig J1 is used which is engaged with the first engaging portion 15A and the second engaging portion 15B from the outside of the rotating body 10. When the operating jig J1 is brought into contact with the rotating body 10 from the outside of the rotating body 10, the operating jig J1 contacts the portion of the curve C of the protrusion 152 of each of the first engaging portion 15A and the second engaging portion 15B. At this time, if the flange portion 12 is provided with a recessed portion 121, interference when the operating jig J1 is brought into contact with the engaging portion 15 can be avoided, and the contact is easy. In addition, by providing the extended protrusion 151 continuously with the recessed portion 121, even if the extended protrusion degree of the extended protrusion 151 is small, the contact between the operating jig J1 and the engaging portion 15 can be stably ensured, and thus there is also an advantage that the overall size of the rotation position sensor 1 can be miniaturized.

[0096] The operating jig J1 is rotated at a predetermined angle while the operating jig J1 is engaged with the first engaging portion 15A and the second engaging portion 15B, and the measured value of the measuring unit 30 is obtained to check whether the measured value reaches a predetermined value.

[0097] The first engaging portion 15A and the second engaging portion 15B are symmetrically symmetrical with respect to the first virtual line L1, so that when the operating clamp J1 is rotated, it can be symmetrically contacted with the rotating body 10. That is, when the operating clamp J1 is rotated to the left or right as a rotational action, the first engaging portion 15A and the second engaging portion 15B are symmetrically symmetrical with respect to the first virtual line L1, so that no matter which rotation is to the left or right, a force can be stably applied from the operating clamp J1 to the engaging portion 15, and the operability (rotation angle controllability) of the operating clamp J1 is improved.

[0098] Figure 7 It is a schematic diagram for explaining another example of the functional inspection of the measuring unit.

[0099] exist Figure 7 2 shows an example of inspection using the operating jig J2 engaged with one engagement portion 15. The operating jig J2 is configured to engage with, for example, the second engagement portion 15B as one engagement portion 15. The operating jig J2 has a recessed portion engaged with the second engagement portion 15B.

[0100] Here, the engaging portion 15 can be made into a line symmetrical shape with a second virtual line L2 passing through the inside of the engaging portion 15 along the radial direction of the rotating body 10 as the symmetry axis when viewed from the Z direction. Thus, when the operating clamp J2 is engaged with one engaging portion 15 to operate the rotating body 10, no matter which rotation is left or right, a force can be stably applied from the operating clamp J2 to the engaging portion 15, which can improve the operability (rotation angle controllability) of the operating clamp J2.

[0101] (Alignment of the rotating body and the housing)

[0102] Figure 8 This is a schematic diagram for explaining an example of positioning of a rotating body and a casing.

[0103] like Figure 8 As shown, the housing 20 has a protrusion 22 provided so as to have an overlapping portion with the engaging portion 15 of the rotating body 10 located at a predetermined reference position when viewed from the Z direction. When the function of the measuring unit 30 is inspected, the inspection is performed with the rotating body 10 located at a predetermined reference position relative to the housing 20.

[0104] In order to align the rotating body 10 with the housing 20, the alignment fixture J3 is configured in a manner that contacts the overlapping portion of the protrusion 22 and the engaging portion 15. That is, the alignment fixture J3 is brought into contact with both the protrusion 22 and the engaging portion 15 so that the positions of the two in the X direction are consistent when viewed in the Z direction. In this way, the rotating body 10 can be positioned at the reference position. In addition, the alignment fixture J3 can also be used as the operating fixture J1. In this case, when checking after alignment, the position in the Z direction is staggered so that the alignment fixture J3 does not contact the protrusion 22, and only the rotating body 10 is rotated.

[0105] In addition, the protrusion 22 may have a non-overlapping portion 23 located outside the engagement portion 15 when viewed in the Z direction. If the protrusion 22 has the non-overlapping portion 23 located outside the engagement portion 15, it is easy to visually confirm (by visual inspection or image recognition) from the Z direction whether the rotating body 10 is located at the reference position during alignment.

[0106] (Appearance (design) of the rotary position sensor)

[0107] Figures 9 to 17 1 is a diagram showing the overall design of the rotational position sensor 1 .

[0108] Figures 18 to 26 It is a diagram showing a partial design (part 1) of the rotational position sensor 1 .

[0109] Figure 27 to Figure 35 This is a diagram showing a partial design (part 2) of the rotational position sensor 1 .

[0110] Figures 9 to 17 The “Description of Design” of the overall design of the illustrated rotational position sensor 1 is as follows.

[0111] exist Figures 9 to 17 In the figure, the thin lines shown are used to determine the shape of the solid surface.

[0112] Figures 18 to 26 The “Description of Design” of (one of) the partial designs of the illustrated rotational position sensor 1 is as follows.

[0113] exist Figures 18 to 26 In FIG. 1 , the portion indicated by the solid line (part of the engaging portion 15 and the recessed portion 121 ) is a portion indicating a partial design.

[0114] exist Figures 18 to 26 In the figure, the thin lines shown are used to determine the shape of the solid surface.

[0115] Figure 27 to Figure 35 The “Description of Design” of the partial design (part 2) of the rotational position sensor 1 shown is as follows.

[0116] exist Figure 27 to Figure 35 In FIG. 1 , the portion indicated by the solid line (part of the engaging portion 15 and the recessed portion 121 ) is a portion indicating a partial design.

[0117] exist Figure 27 to Figure 35 In the figure, the thin lines shown are used to determine the shape of the solid surface.

[0118] As described above, according to the rotation position sensor 1 of the present embodiment, the rotation operation can be transmitted from the operating jigs J1 and J2 to the rotating body 10 with high accuracy, and the inspection can be performed without affecting the shaft hole 10 h.

[0119] In addition, the present embodiment is described above, but the present invention is not limited to these examples. For example, the measuring unit 30 may be a method other than a resistance variable method (for example, a magnetic variable method, an optical detection method, a capacitance detection method). In addition, one or more than three engaging parts 15 provided on the rotating body 10 may be provided. In addition, for each of the above-mentioned embodiments, a configuration obtained by appropriately adding, deleting, or changing the design of constituent elements by a person skilled in the art, or a configuration obtained by appropriately combining the features of the constituent examples of each embodiment, is also included in the scope of the present invention as long as it possesses the gist of the present invention.

[0120] Description of Reference Numerals

[0121] 1…Rotary position sensor

[0122] 10… Rotating body

[0123] 10b…Crushed ribs

[0124] 10h…Axle hole

[0125] 11…Shaft

[0126] 12…Flange

[0127] 13…Retention section

[0128] 15…Engagement part

[0129] 15A…First engagement portion

[0130] 15B...Second engagement portion

[0131] 20…Housing

[0132] 21…Bearing

[0133] 22…Protrusion

[0134] 23...non-overlapping part

[0135] 30…Measurement Department

[0136] 31…Fixed measuring unit

[0137] 32…Movable measuring unit

[0138] 121…Concave

[0139] 151…Extended protrusion

[0140] 152…Protrusion

[0141] 311…Substrate

[0142] 311h…Kong

[0143] 312…Pattern

[0144] 313…terminal

[0145] 314…Connecting parts

[0146] 322…Sliding parts

[0147] AX…Rotation axis

[0148] C…Curve

[0149] J1, J2…Operation fixture

[0150] J3…Alignment fixture

[0151] L1…First Virtual Line

[0152] L2…Second virtual line

[0153] S…Operation axis

Claims

1. A rotation position sensor, characterized in that: have: The rotating body comprises a cylindrical shaft body portion having an axial hole, and a flange portion which is continuously provided with the shaft body portion and extends radially outward from the shaft body portion; A housing having a bearing portion through which the shaft portion of the rotating body is inserted; as well as a measuring unit for measuring a relative position of the rotating body with respect to the housing, An engaging portion is provided on a peripheral edge portion of the flange portion.

2. The rotational position sensor according to claim 1, characterized in that: The shaft hole has a holding portion for accommodating and holding an operating shaft, the operating shaft having a non-circular cross section when viewed in a direction along the rotation axis of the rotating body.

3. The rotational position sensor according to claim 1, characterized in that: The engaging portion includes a first engaging portion and a second engaging portion arranged across the rotating shaft of the rotating body. When viewed in the direction along the rotation axis of the rotating body, the first engaging portion and the second engaging portion have line-symmetric shapes with respect to each other about a first virtual line along the radial direction of the rotating body as an axis of symmetry.

4. The rotational position sensor according to claim 1, characterized in that: The engaging portion includes an extending portion extending outward in a radial direction of the rotating body when viewed in a direction along the rotating axis of the rotating body.

5. The rotational position sensor according to claim 4, characterized in that: The extending portion has a protruding portion that protrudes in a direction intersecting with a direction in which the extending portion extends when viewed in a direction along the rotation axis of the rotating body.

6. The rotational position sensor according to claim 5, characterized in that: When viewed in a direction along the rotation axis of the rotating body, the protrusion is formed by a curved line.

7. The rotational position sensor according to claim 4, characterized in that: When viewed in the direction along the rotation axis of the rotating body, a notch portion having a shape in which the flange portion is partially notch is provided continuously with the extending protrusion.

8. The rotational position sensor according to claim 1, characterized in that: When viewed in the direction along the rotation axis of the rotating body, the engagement portion has a line-symmetric shape with a second virtual line passing through the interior of the engagement portion along the radial direction of the rotating body as a symmetry axis.

9. The rotational position sensor according to claim 1, characterized in that: The housing has a protrusion having an overlapping portion that overlaps with the engaging portion of the rotating body located at a reference position when viewed in a direction along the rotation axis of the rotating body.

10. The rotational position sensor according to claim 9, characterized in that: The protrusion has a portion located outside the engagement portion when viewed in a direction along the rotation axis of the rotating body.

11. The rotational position sensor according to claim 1, characterized in that: The measuring unit includes a fixed measuring unit attached to the housing and a movable measuring unit attached to the rotating body.

12. The rotational position sensor according to claim 11, characterized in that The fixed measuring part has a resistor, and the movable measuring part has a slider that comes into sliding contact with the resistor.

13. The rotational position sensor according to claim 11, characterized in that: The movable measuring part has a resistor, and the fixed measuring part has a slider that comes into sliding contact with the resistor.

14. The rotational position sensor according to claim 1, characterized in that: A crushing rib is provided on the inner wall of the shaft hole.

15. The rotational position sensor according to claim 1, characterized in that The engaging portion engages with an operating jig of a function inspection device of the measuring unit.

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