Angle detection device checking jig

Abstract

To provide a confirmation jig for an angle detector which can suppress change of the angle of rotation of a rack.SOLUTION: The confirmation jig for an angle detector includes: a rotational shaft 1; a rack 7 with an opening unit 704, which rotates around the rotational shaft 1; a fixation plate 2 along a flat surface perpendicular to the axial line of the rotational shaft 1; a rack fixation unit 8 fixed to the rack 7, the rack fixation unit having a facing unit 802 facing the fixation plate 2; and a plunger 9 for fixing the facing unit 802 to the fixation plate 2 at a position in which the facing unit 802 is located of a plurality of positions lining in a circumferential direction D3 of the rotational shaft 1 to which the facing unit 802 can move.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present disclosure relates to a checking jig for an angle detection device. [Background technology]

[0002] A rotation support mechanism that rotatably supports a rack is known in the art, and this rotation support mechanism uses a torque hinge to maintain the rotation angle of the rack at a set rotation angle (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5934519 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the configuration described in Patent Document 1, the rotation angle of the rack is maintained by the frictional force generated in the torque hinge. Therefore, there is a problem in that if an external force acts on the rack that is maintained at a set rotation angle, the rotation angle of the rack may change from the set rotation angle.

[0005] The present disclosure has been made to solve the above-mentioned problems, and its purpose is to provide a verification jig for an angle detection device that can suppress changes in the rotation angle of the rack. [Means for solving the problem]

[0006] The inspection jig for an angle detection device according to the present disclosure comprises a rotating shaft, a rack having an opening formed therein and rotating around the rotating shaft, a fixed plate arranged along a plane perpendicular to the axis of the rotating shaft, a rack fixing portion having an opposing portion facing the fixed plate and fixed to the rack, and a rack rotation limiting portion which allows the opposing portion to move to a plurality of positions lined up circumferentially around the rotating shaft and which fixes the opposing portion to the fixed plate at one of the plurality of positions where the opposing portion is located. [Effects of the Invention]

[0007] According to the angle detection device checking jig of the present disclosure, it is possible to suppress changes in the rotation angle of the rack. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a front view showing an angle detection device checking jig according to Embodiment 1. FIG. [Figure 2] FIG. 2 is a side view showing the angle detection device checking jig of FIG. 1. [Figure 3] FIG. 2 is a perspective view showing a checking jig for the angle detection device of FIG. 1. [Figure 4] FIG. 2 is a perspective view showing a checking jig for the angle detection device of FIG. 1. [Figure 5] 2 is a front view showing a main part of the angle detection device checking jig of FIG. 1. [Figure 6] FIG. 6 is a side view showing a main part of the angle detection device checking jig of FIG. 5. [Figure 7] 1 is a front view showing a state in which a confirmation target substrate is provided on the angle detection device confirmation jig according to the first embodiment. FIG. [Figure 8] 8 is a side view showing the angle detection device jig and the verification target substrate of FIG. 7. [Figure 9] FIG. 10 is a front view showing the angle detection device checking jig according to the second embodiment. [Figure 10] 10 is a side view showing a main part of the angle detection device checking jig of FIG. 9. [Figure 11] FIG. 11 is a side view showing a main part of the angle detection device checking jig according to the third embodiment. [Figure 12]FIG. 12 is a perspective view showing the rotary damper device of FIG. [Figure 13] FIG. 12 is a perspective view showing the rotary damper device of FIG. [Figure 14] FIG. 10 is a side view showing a main part of the angle detection device checking jig according to the fourth embodiment. [Figure 15] FIG. 15 is a perspective view showing the rotary damper device of FIG. [Figure 16] FIG. 15 is a perspective view showing the rotary damper device of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Embodiment 1 Fig. 1 is a front view showing an angle detection device checking jig according to embodiment 1. Fig. 2 is a side view showing the angle detection device checking jig of Fig. 1. Fig. 3 is a perspective view showing the angle detection device checking jig of Fig. 1. Fig. 4 is a perspective view showing the angle detection device checking jig of Fig. 1.

[0010] The angle detection device checking jig according to the first embodiment includes a rotating shaft 1, a fixed plate 2, a bottom plate 3, a pair of side plates 4, a first bearing device 5, a second bearing device 6, a rack 7, and a rack fixing portion 8. The angle detection device checking jig according to the first embodiment also includes a plunger 9, a pair of stoppers 10, a handle 11, and a pair of grips 12.

[0011] The rotating shaft 1 is arranged along a horizontal plane. The direction along the axis of the rotating shaft 1 is defined as the axial direction D1. The direction along the radius of a circle centered on the axis of the rotating shaft 1 in a plane perpendicular to the axis of the rotating shaft 1 is defined as the radial direction D2. The direction along the circumference of a circle centered on the axis of the rotating shaft 1 in a plane perpendicular to the axis of the rotating shaft 1 is defined as the circumferential direction D3.

[0012] The fixed plate 2 is arranged along a plane perpendicular to the axis of the rotating shaft 1. The fixed plate 2 has a plate-shaped fixed plate main body 201 and a reinforcing plate 202. One surface of the fixed plate main body 201 in the thickness direction of the fixed plate main body 201 is referred to as a first surface 203. The other surface of the fixed plate main body 201 in the thickness direction of the fixed plate main body 201 is referred to as a second surface 204. The thickness direction of the fixed plate main body 201 coincides with the axial direction D1. The reinforcing plate 202 is provided on the first surface 203 of the fixed plate main body 201. The reinforcing plate 202 is formed to extend along the circumferential direction D3.

[0013] The fixing plate body 201 is formed with a mounting hole 205 for mounting the first bearing device 5. The fixing plate body 201 also has a fan-shaped through hole 206 into which the rack fixing part 8 is inserted.

[0014] Three plunger insertion holes 207 are formed in the fixed plate 2. The three plunger insertion holes 207 are aligned along the circumferential direction D3. Therefore, one plunger insertion hole 207 is formed at each of the three positions aligned in the circumferential direction D3 on the fixed plate 2. Each plunger insertion hole 207 penetrates the fixed plate main body 201 and the reinforcing plate 202 in the thickness direction of the fixed plate main body 201.

[0015] The bottom plate 3 is disposed along a horizontal plane. The bottom plate 3 is also disposed along the rotation axis 1. The bottom plate 3 is also disposed so as to be perpendicular to the fixed plate 2. The bottom plate 3 is also disposed below the rotation axis 1.

[0016] The pair of side plates 4 are arranged to face each other in the horizontal direction. The pair of side plates 4 are also arranged to sandwich the rotation axis 1 in the radial direction D2. Each side plate 4 is arranged to be perpendicular to the fixed plate 2 and the bottom plate 3, respectively.

[0017] Each side plate 4 is fixed to the fixing plate 2 via a plurality of screws 13. The fixing plate main body 201 has screw insertion holes (not shown) formed therein, into which the screws 13 are inserted. The side plate 4 has screw insertion holes (not shown) formed therein, into which the screws 13 are inserted. The side plate 4 is fixed to the fixing plate 2 by inserting the screws 13 into the screw insertion holes of the fixing plate main body 201 and the side plate 4, which are stacked on top of each other.

[0018] The diameter of the screw insertion hole in the fixing plate body 201 is larger than the outer diameter of the screw 13. This makes it possible to adjust the position of the side plate 4 relative to the fixing plate body 201 in a direction along a plane perpendicular to the axis of the rotation shaft 1 when the fixing plate body 201 and the side plate 4 are not fixed to each other.

[0019] Each side plate 4 is fixed to the bottom plate 3 using a plurality of screws (not shown). Therefore, the fixed plate 2, the bottom plate 3 and the pair of side plates 4 are fixed to one another.

[0020] Fig. 5 is a front view showing a main part of the angle detection device checking jig of Fig. 1. Fig. 6 is a side view showing a main part of the angle detection device checking jig of Fig. 5. Figs. 5 and 6 show the angle detection device checking jig with the side plate 4 removed.

[0021] The first bearing device 5 is interposed between the fixed plate body 201 of the fixed plate 2 and the rotating shaft 1. The first bearing device 5 is composed of one bearing. The first bearing device 5 enables the rotating shaft 1 to rotate relative to the fixed plate 2. In other words, the rotating shaft 1 is rotatably supported by the fixed plate 2 via the first bearing device 5.

[0022] The second bearing device 6 is interposed between the bottom plate 3 and the rotating shaft 1. The second bearing device 6 is composed of two bearings. The two bearings are arranged apart from each other in the axial direction D1. The second bearing device 6 enables the rotating shaft 1 to rotate relative to the bottom plate 3. In other words, the rotating shaft 1 is rotatably supported on the bottom plate 3 via the second bearing device 6.

[0023] When the fixed plate 2 and the side plate 4 are fixed to each other via the screws 13, the position of the side plate 4 relative to the fixed plate main body 201 is adjusted in a direction along a plane perpendicular to the axis of the rotating shaft 1 so that the first bearing device 5 is inserted into the mounting hole 205. After the position of the side plate 4 relative to the fixed plate main body 201 has been adjusted, the side plate 4 is fixed to the fixed plate 2 via the screws 13.

[0024] The rack 7 has a pair of rack legs 701, a rack fixing base 702, and a rack body 703. The pair of rack legs 701 are arranged spaced apart from each other in the axial direction D1. Each of the rack legs 701 is fixed to the rotating shaft 1. Therefore, the rack 7 is fixed to the rotating shaft 1.

[0025] The rack fixing base 702 is provided across the pair of rack legs 701. The rack fixing base 702 is fixed to each of the rack legs 701.

[0026] The rack body 703 is fixed to the rack fixing base 702. An opening 704 is formed in the rack body 703. When viewed along the radial direction D2, the rack body 703 is arranged to face the second surface 204 of the fixing plate body 201. When viewed along the radial direction D2, the rack body 703 is arranged so that the opening 704 faces the fixing plate 2 side. When viewed along the axial direction of the rotating shaft 1, the opening 704 is located within the area of ​​the through-hole 206 of the fixing plate body 201.

[0027] A board to be checked (not shown) is inserted into the inside of the rack body 703 through an opening 704. The board to be checked is a board included in an angle detection device that detects a rotation angle, and is a board on which an element for detecting the rotation angle is mounted.

[0028] As the rotating shaft 1 rotates in the circumferential direction D3, the rack 7 rotates in the circumferential direction D3 around the rotating shaft 1. As a result, the substrate to be checked inserted inside the rack 7 rotates in the circumferential direction D3 around the rotating shaft 1.

[0029] A connector (not shown) is provided inside the rack body 703. When a board to be checked is inserted inside the rack body 703, the board to be checked is connected to the connector inside the rack body 703.

[0030] An angle detection and checking device (not shown) is connected via a cable (not shown) to the rack body 703. The detection results of the board to be checked are input to the angle detection and checking device via the cable.

[0031] The rack fixing part 8 is fixed to the rack fixing base 702. Therefore, the rack fixing part 8 rotates together with the rack 7 in the circumferential direction D3 around the rotation axis 1. The rack fixing part 8 has a fixing part main body 801 and an opposing part 802. The fixing part main body 801 is formed so as to extend from the rack fixing base 702 in the radial direction D2.

[0032] The fixing portion main body 801 is inserted into the through-hole 206 of the fixing plate main body 201. When the rack fixing portion 8 rotates in the circumferential direction D3 around the rotation axis 1, the fixing portion main body 801 rotates inside the through-hole 206 in the circumferential direction D3 around the rotation axis 1.

[0033] The facing portion 802 is provided at the tip of the fixed portion main body 801. The tip of the fixed portion main body 801 is the part of the fixed portion main body 801 that is farthest from the rotating shaft 1 in the radial direction D2. The facing portion 802 is arranged on the opposite side of the fixed plate main body 201 from the rack 7 in the axial direction D1. The facing portion 802 faces the reinforcing plate 202 in the axial direction D1.

[0034] The fixing portion main body 801 has a through hole 803 formed therein, which penetrates the fixing portion main body 801 in the axial direction D1. When viewed along the axial direction D1, the through hole 803 overlaps with the opening 704. The substrate to be checked is inserted into the inside of the rack main body 703 through the through hole 803 and the opening 704.

[0035] By rotating the rack 7 around the rotary shaft 1 in the circumferential direction D3, the opposing portion 802 can move to three positions aligned in the circumferential direction D3 of the rotary shaft 1.

[0036] The plunger 9 is provided on the facing portion 802. The plunger 9 can be inserted separately into each of the three plunger insertion holes 207. By inserting the plunger 9 into the plunger insertion holes 207, the facing portion 802 is fixed to the fixing plate 2. This maintains the rotation angle of the rack 7 relative to the horizontal plane.

[0037] A spring (not shown) is provided between the opposing portion 802 and the plunger 9. The plunger 9 is pressed toward the reinforcing plate 202 by the elastic force of the spring. This maintains the state in which the plunger 9 is inserted into the plunger insertion hole 207. When the plunger 9 is to be pulled out of the plunger insertion hole 207, the operator moves the plunger 9 against the elastic force of the spring.

[0038] The three plunger insertion holes 207 are formed at three positions on the fixed plate 2 aligned in the circumferential direction D3. The positions of the three plunger insertion holes 207 formed on the fixed plate 2 correspond to three positions of the movable opposing part 802. The plunger 9 serves as a rack rotation limiting part that fixes the opposing part 802 to the fixed plate 2 at the position where the opposing part 802 is located among the three positions.

[0039] When the plunger 9 is inserted into the central plunger insertion hole 207 among the three plunger insertion holes 207 aligned in the circumferential direction D3, the rack 7 is positioned to extend in the vertical direction. As a result, the confirmation target substrate inserted inside the rack 7 is positioned to extend in the vertical direction.

[0040] On the other hand, when a plunger is inserted into each of the plunger insertion holes 207 located at both ends of the three lined up plunger insertion holes 207, the rack 7 is positioned so as to be tilted by a preset rotation angle with respect to the vertical line. As a result, the inspection target substrate placed inside the rack 7 is positioned so as to be tilted by the preset rotation angle with respect to the vertical line. An example of the preset rotation angle is 20 degrees.

[0041] The pair of stoppers 10 are provided on the first surface 203 of the fixing plate main body 201. The pair of stoppers 10 are arranged to sandwich the reinforcing plate 202 and the opposing portion 802 in the circumferential direction D3. Each stopper 10 is fixed to the fixing plate main body 201 using a plurality of screws 14. The pair of stoppers 10 limit the rotation of the rack fixing portion 8. This limits the rotation of the rack 7 in the circumferential direction D3 around the rotation axis 1.

[0042] The handle 11 is provided on the opposing portion 802. When an operator grasps the handle 11 and moves the handle 11 in the circumferential direction D3, the rack 7 rotates around the rotation shaft 1 in the circumferential direction D3.

[0043] The pair of gripping portions 12 are provided on the first surface 203 of the fixing plate main body 201. When an operator holds the pair of gripping portions 12 and lifts the pair of gripping portions 12, the operator lifts the angle detection device checking jig. This allows the operator to easily carry the angle detection device checking jig.

[0044] Next, a procedure for checking the detection of the rotation angle by the confirmation target substrate using the angle detection device checking jig will be described. Fig. 7 is a front view showing a state in which the confirmation target substrate 15 is mounted on the angle detection device checking jig according to embodiment 1. Fig. 8 is a side view showing the angle detection device jig and confirmation target substrate 15 of Fig. 7.

[0045] The operator inserts the check target board 15 into the inside of the rack 7 through the through-hole 803 and the opening 704. The insertion direction of the check target board 15 is along the axial direction D1 of the rotation shaft 1. Since the fixing part main body 801 of the rack fixing part 8 is inserted into the through-hole 206, when the check target board 15 is inserted into the inside of the rack 7, the check target board 15 is inserted into the through-hole 206.

[0046] With the inspection target substrate 15 inserted inside the rack 7, the worker rotates the rack 7 in the circumferential direction D3 around the rotation axis 1. Then, the worker inserts the plunger 9 into the plunger insertion hole 207. By inserting the plunger 9 into the plunger insertion hole 207, the rotation angle of the rack 7 is maintained at a preset rotation angle. Therefore, even if an external force acts on the rack 7 that is maintained at the preset rotation angle, the rotation angle of the rack 7 is prevented from changing from the preset rotation angle.

[0047] As described above, the angle detection device checking jig according to the first embodiment includes the rotating shaft 1, the fixed plate 2, the rack 7, the rack fixing portion 8, and the plunger 9. The rack 7 has an opening 704 formed therein. The rack 7 rotates in the circumferential direction D3 around the rotating shaft 1. The fixed plate 2 is provided along a plane perpendicular to the axis of the rotating shaft 1. The rack fixing portion 8 has a facing portion 802 facing the fixed plate 2. The rack fixing portion 8 is fixed to the rack 7. The facing portion 802 is movable to three positions aligned in the circumferential direction D3 of the rotating shaft 1. The plunger 9 fixes the facing portion 802 to the fixed plate 2 at one of the three positions aligned in the circumferential direction D3 of the rotating shaft 1 where the facing portion 802 is located. According to this configuration, the plunger 9 fixes the facing portion 802 to the fixed plate 2. As a result, when an external force acts on the rack 7 that is maintained at a preset rotation angle, the angle detection device checking jig according to embodiment 1 can prevent the rotation angle of the rack 7 from changing from the preset rotation angle. As a result, the angle detection device checking jig according to embodiment 1 can prevent the rotation angle of the rack 7 from changing.

[0048] Furthermore, in the angle detection device checking jig according to the first embodiment, a plunger insertion hole 207 is formed at each of three positions on the fixed plate 2 corresponding to the three positions to which the facing portion 802 can move. The plunger 9 is provided in the facing portion 802. The facing portion 802 is fixed to the fixed plate 2 by inserting the plunger 9 into the plunger insertion hole 207. According to this configuration, the facing portion 802 can be fixed to the fixed plate 2 and released from the fixation of the facing portion 802 to the fixed plate 2 by inserting and removing the plunger 9 into and from the plunger insertion hole 207. This makes it easy to fix the facing portion 802 to the fixed plate 2 and release the fixation of the facing portion 802 to the fixed plate 2.

[0049] Furthermore, in the angle detection device checking jig according to the first embodiment, the rack 7 is disposed adjacent to the fixed plate 2 so that the opening 704 of the rack 7 faces the fixed plate 2 when viewed along the radial direction D2. A through hole 206 is formed in the fixed plate 2, and the opening 704 is located within the area of ​​the through hole 206 when viewed along the axial direction of the rotation shaft 1. With this configuration, the check target substrate 15 can be inserted into and removed from the rack 7 from the opposite side of the fixed plate 2 from the rack 7 in the axial direction D1.

[0050] Moreover, the angle detection device checking jig according to the first embodiment includes a bottom plate 3 fixed to a fixed plate 2, a first bearing device 5 interposed between the fixed plate 2 and the rotating shaft 1, and a second bearing device 6 interposed between the bottom plate 3 and the rotating shaft 1. The first bearing device 5 enables the rotating shaft 1 to rotate relative to the fixed plate 2. The second bearing device 6 enables the rotating shaft 1 to rotate relative to the bottom plate 3. The rotating shaft 1 is fixed to a rack 7. With this configuration, the rack 7 can be attached to the rotating shaft 1 more easily than in a configuration in which the rack 7 is attached to the rotating shaft 1 via a bearing device.

[0051] Embodiment 2 Fig. 9 is a front view showing the angle detection device checking jig according to embodiment 2. Fig. 10 is a side view showing a main part of the angle detection device checking jig of Fig. 9. Fig. 10 shows the angle detection device checking jig with the side plate 4 removed.

[0052] The angle detection device checking jig according to the second embodiment differs from the angle detection device checking jig according to the first embodiment in that it does not include the first bearing device 5 and the second bearing device 6. The angle detection device checking jig according to the second embodiment includes a third bearing device 16 and a pair of rotating shaft fixing portions 17.

[0053] The third bearing device 16 is interposed between the rack fixed base 702 of the rack 7 and the rotating shaft 1. The rack 7 does not have a rack leg 701. The third bearing device 16 has two bearings. The two bearings in the third bearing device 16 are arranged spaced apart from each other in the axial direction D1. The third bearing device 16 enables the rotating shaft 1 to rotate relative to the rack 7. In other words, the rack 7 is rotatably supported relative to the rotating shaft 1 via the third bearing device 16.

[0054] The rotating shaft 1 is fitted into the mounting hole 205. As a result, the rotating shaft 1 is fixed to the fixed plate 2.

[0055] The pair of rotary shaft fixing portions 17 are provided across the bottom plate 3 and the rotary shaft 1. The rotary shaft 1 is fixed to the bottom plate 3 via the pair of rotary shaft fixing portions 17.

[0056] Other configurations of the angle detection device checking jig according to the second embodiment are the same as those of the angle detection device checking jig according to the first embodiment.

[0057] As described above, the angle detection device checking jig according to the second embodiment includes the third bearing device 16 interposed between the rack 7 and the rotating shaft 1. The third bearing device 16 enables the rotating shaft 1 to rotate relative to the rack 7. The rotating shaft 1 is fixed to the fixed plate 2. With this configuration, the number of bearings can be reduced compared to a configuration including the first bearing device 5 and the second bearing device 6. This simplifies the configuration of the angle detection device checking jig.

[0058] Embodiment 3 11 is a side view showing a main part of the angle detection device checking jig according to embodiment 3. Compared to the angle detection device checking jig according to embodiment 1, the angle detection device checking jig according to embodiment 3 further includes a rotation damper device 18 that slows down the rotation of the rack 7 in the circumferential direction D3 around the rotating shaft 1.

[0059] Fig. 12 is a perspective view showing the rotary damper device 18 of Fig. 11. Fig. 13 is a perspective view showing the rotary damper device 18 of Fig. 11. The rotary damper device 18 has a damper rotating shaft 181, a damper rotating shaft fixing portion 182, a damper main body 183, and a damper case 184.

[0060] The damper rotation shaft 181 is disposed coaxially with the rotation shaft 1. The damper rotation shaft 181 is separated from the rotation shaft 1. In other words, the damper rotation shaft 181 is not connected to the rotation shaft 1.

[0061] The damper rotating shaft fixing portion 182 is provided across the rack fixing base 702 of the rack 7 and the damper rotating shaft 181. The damper rotating shaft fixing portion 182 fixes the damper rotating shaft 181 to the rack fixing base 702. Therefore, when the rack 7 rotates in the circumferential direction D3 around the rotating shaft 1, the rotational force of the rack 7 is transmitted to the damper rotating shaft 181 via the damper rotating shaft fixing portion 182.

[0062] The damper rotating shaft fixing portion 182 is fixed to the rack fixing base 702 via a plurality of screws 19. The rack fixing base 702 has screw insertion holes (not shown) formed therein, into which the screws 19 are inserted. The damper rotating shaft fixing portion 182 has screw insertion holes (not shown) formed therein, into which the screws 19 are inserted. The damper rotating shaft fixing portion 182 is fixed to the rack fixing base 702 by inserting the screws 19 into the screw insertion holes of the rack fixing base 702 and the damper rotating shaft fixing portion 182, which are stacked on top of each other.

[0063] The diameter of the screw insertion hole of the damper rotating shaft fixing portion 182 is larger than the outer diameter of the screw 19. This makes it possible to adjust the position of the damper rotating shaft fixing portion 182 relative to the rack fixing base 702 in a direction along a plane perpendicular to the rotating shaft 1 when the rack fixing base 702 and the damper rotating shaft fixing portion 182 are not fixed to each other. As a result, the rotating shaft 1 and the damper rotating shaft 181 can be easily overlapped when viewed in the axial direction D1.

[0064] A fitting hole 185 into which the damper rotating shaft 181 is fitted is formed in the damper rotating shaft fixing portion 182. The damper rotating shaft 181 is fitted into the fitting hole 185, whereby the damper rotating shaft fixing portion 182 is fixed to the damper rotating shaft 181.

[0065] The damper body 183 decelerates the rotation of the damper rotary shaft 181. Therefore, the damper body 183 decelerates the rotation of the rack 7 in the circumferential direction D3 around the rotary shaft 1.

[0066] The damper case 184 supports the damper main body 183. The damper case 184 is fixed to both the damper main body 183 and the bottom plate 3. The damper case 184 has a damper case standing plate 186 fixed to the damper main body 183 and a damper case bottom plate 187 fixed to the bottom plate 3.

[0067] The damper main body 183 is fixed to the damper case standing plate 186 via a plurality of screws 20. The damper case standing plate 186 has screw insertion holes (not shown) formed therein, into which the screws 20 are inserted. The damper main body 183 has screw insertion holes (not shown) formed therein, into which the screws 20 are inserted. The damper main body 183 is fixed to the damper case 184 by inserting the screws 20 into the screw insertion holes of the damper case standing plate 186 and the damper main body 183, which are stacked on top of each other.

[0068] Damper case bottom plate 187 is fixed to bottom plate 3 via a plurality of screws 21. Screw insertion holes 188 into which the screws 21 are inserted are formed in damper case bottom plate 187. Screw insertion holes (not shown) into which the screws 21 are inserted are formed in bottom plate 3. Damper case bottom plate 187 is fixed to bottom plate 3 by inserting screws 21 into screw insertion holes 188 of damper case bottom plate 187 and screw insertion holes of bottom plate 3, which are stacked on top of each other.

[0069] The diameter of the screw insertion hole 188 in the damper case bottom plate 187 is larger than the outer diameter of the screw 21. This makes it possible to adjust the position of the damper case bottom plate 187 relative to the bottom plate 3 in the direction along the bottom plate 3 when the damper case bottom plate 187 and the bottom plate 3 are not fixed to each other. As a result, the rotating shaft 1 and the damper rotating shaft 181 can be easily overlapped when viewed in the axial direction D1.

[0070] Other configurations of the angle detection device checking jig according to the third embodiment are the same as those of the angle detection device checking jig according to the first embodiment.

[0071] As described above, the angle detection device checking jig according to the third embodiment further includes the rotation damper device 18 that slows down the rotation of the rack 7. With this configuration, if the operator's hand leaves the handle 11 while rotating the rack 7, the rotation of the rack 7 can be slowed down. This makes it possible to prevent the rack 7 from colliding forcefully with the stopper 10.

[0072] Furthermore, in the angle detection device checking jig according to the third embodiment, the rotary damper device 18 has a damper rotating shaft 181, a damper rotating shaft fixing portion 182, a damper main body 183, and a damper case 184. The damper rotating shaft 181 is provided coaxially with the rotating shaft 1. The damper rotating shaft fixing portion 182 fixes the damper rotating shaft 181 to the rack 7. The damper main body 183 slows down the rotation of the damper rotating shaft 181. The damper case 184 supports the damper main body 183. The damper case 184 is fixed to the fixing plate 2 via the bottom plate 3. With this configuration, it is possible to slow down the rotation of the rack 7 in the circumferential direction D3 around the rotating shaft 1 without connecting the rotating shaft 1 and the damper rotating shaft 181 to each other.

[0073] In the angle detection device checking jig according to embodiment 3, similar to the angle detection device checking jig according to embodiment 1, the rotating shaft 1 is rotatably supported on the bottom plate 3 via the second bearing device 6. However, similar to the angle detection device checking jig according to embodiment 2, the rotating shaft 1 may be fixed to the bottom plate 3. Even in this case, the rotary damper device 18 can decelerate the rotation of the rack 7.

[0074] Embodiment 4 14 is a side view showing a main part of the angle detection device checking jig according to embodiment 4. The angle detection device checking jig according to embodiment 4 includes a rotation damper device 22 that slows down the rotation of the rack 7 in the circumferential direction D3 around the rotating shaft 1.

[0075] Fig. 15 is a perspective view showing the rotary damper device 22 of Fig. 14. Fig. 16 is a perspective view showing the rotary damper device 22 of Fig. 14. The rotary damper device 22 has a damper rotating shaft 221, a coupling 222, a damper main body 223, and a damper fixing metal fitting 224.

[0076] The damper rotating shaft 221 is disposed coaxially with the rotating shaft 1 .

[0077] The coupling 222 is provided between the rotating shaft 1 and the damper rotating shaft 221. The damper rotating shaft 221 is connected to the rotating shaft 1 via the coupling 222. Therefore, when the rotating shaft 1 rotates, the rotational force of the rotating shaft 1 is transmitted to the damper rotating shaft 221 via the coupling 222.

[0078] The damper body 223 decelerates the rotation of the damper rotary shaft 221. Therefore, the damper body 223 decelerates the rotation of the rack 7 in the circumferential direction D3 around the rotary shaft 1.

[0079] The damper body 223 is fixed to the damper fixing metal fitting 224 via a plurality of screws 23. In this way, the damper body 223 is supported by the damper fixing metal fitting 224.

[0080] The damper fixing bracket 224 is fixed to the rack fixing base 702 of the rack 7 via a plurality of screws 24. The rack fixing base 702 has screw insertion holes (not shown) formed therein, into which the screws 24 are inserted. The damper fixing bracket 224 has screw insertion holes (not shown) formed therein, into which the screws 24 are inserted. The damper fixing bracket 224 is fixed to the rack fixing base 702 by inserting the screws 24 into the screw insertion holes of the rack fixing base 702 and the damper fixing bracket 224, which are stacked on top of each other.

[0081] The diameter of the screw insertion hole of the damper fixing metal fitting 224 is larger than the outer diameter of the screw 24. This makes it possible to adjust the position of the damper fixing metal fitting 224 relative to the rack fixing base 702 in a direction along a plane perpendicular to the axis of the rotating shaft 1 when the damper fixing metal fitting 224 and the rack fixing base 702 are not fixed to each other. As a result, the rotating shaft 1 and the damper rotating shaft 221 can be easily overlapped when viewed in the axial direction D1.

[0082] Other configurations of the angle detection device checking jig according to the third embodiment are the same as those of the angle detection device checking jig according to the first embodiment.

[0083] As described above, in the angle detection device checking jig according to the fourth embodiment, the rotary damper device 22 has the damper rotation shaft 221, the damper main body 223, and the damper fixing bracket 224. The damper rotation shaft 221 is provided coaxially with the rotation shaft 1. The damper rotation shaft 221 is connected to the rotation shaft 1. The damper main body 223 slows down the rotation of the damper rotation shaft 221. The damper fixing bracket 224 supports the damper main body 223. The damper fixing bracket 224 is fixed to the rack fixing base 702 of the rack 7. With this configuration, it is possible to slow down the rotation of the rack 7 in the circumferential direction D3 about the rotation shaft 1 without fixing the damper main body 223 to the bottom plate 3.

[0084] In each embodiment, the configuration has been described in which the plunger 9 is provided in the facing portion 802. However, the plunger 9 may be provided in the fixed plate 2. In this case, the facing portion 802 is formed with a plunger insertion hole into which the plunger 9 is inserted.

[0085] In addition, in each embodiment, the rack rotation limiting portion is the plunger 9. However, the rack rotation limiting portion is not limited to the plunger 9, and may be configured to fix the facing portion 802 to the fixed plate 2 at a position where the facing portion 802 is located among three positions aligned in the circumferential direction D3 of the rotating shaft 1.

[0086] Furthermore, in each embodiment, a configuration has been described in which the facing portion 802 is movable to three positions aligned in the circumferential direction D3 of the rotating shaft 1, and the rack rotation limiting portion fixes the facing portion 802 to the fixed plate 2 at one of the three positions where the facing portion 802 is located. However, the positions to which the facing portion 802 is movable are not limited to three positions. Any configuration may be used as long as the facing portion 802 is movable to a plurality of positions aligned in the circumferential direction D3 of the rotating shaft 1, and the rack rotation limiting portion fixes the facing portion 802 to the fixed plate 2 at one of the plurality of positions where the facing portion 802 is located.

[0087] In addition, in each embodiment, a configuration has been described in which the pair of side plates 4 are fixed to the bottom plate 3 using a plurality of screws (not shown). However, the pair of side plates 4 and the bottom plate 3 may be an integrated structure formed by, for example, bending a metal plate. [Explanation of symbols]

[0088] 1 Rotating shaft, 2 Fixing plate, 3 Bottom plate, 4 Side plate, 5 First bearing device, 6 Second bearing device, 7 Rack, 8 Rack fixing portion, 9 Plunger, 10 Stopper, 11 Handle, 12 Grip portion, 13 Screw, 14 Screw, 15 Board to be checked, 16 Third bearing device, 17 Rotating shaft fixing portion, 18 Rotating damper device, 19 Screw, 20 Screw, 21 Screw, 22 Rotating damper device, 23 Screw, 24 Screw, 181 Damper rotating shaft, 182 Damper rotating shaft fixing portion, 183 Damper body, 184 Damper case, 185 Fitting hole, 186 Damper case standing plate, 187 Damper case bottom plate, 188 Screw insertion hole, 201 Fixing plate body, 202 Reinforcement plate, 203 First surface, 204 Second surface, 205 Mounting hole, 206 through hole, 207 plunger insertion hole, 221 damper rotating shaft, 222 coupling, 223 damper body, 224 damper fixing bracket, 701 rack leg, 702 rack fixing base, 703 rack body, 704 opening, 801 fixing part body, 802 opposing part, 803 through hole.

Claims

1. A rotation axis; a rack having an opening formed therein and rotating about the rotation axis; a fixed plate provided along a plane perpendicular to the axis of the rotation shaft; a rack fixing part having an opposing part facing the fixing plate and fixed to the rack; a rack rotation limiting section that fixes the opposing portion to the fixed plate at a position where the opposing portion is located among the plurality of positions, the rack rotation limiting section being movable to a plurality of positions aligned in a circumferential direction of the rotation shaft; A verification jig for an angle detection device.

2. a plunger insertion hole is formed at each of a plurality of positions on the fixing plate corresponding to the plurality of positions; the rack rotation limiting portion is a plunger provided in the opposing portion, 2. The angle detection device checking jig according to claim 1, wherein the facing portion is fixed to the fixing plate by inserting the plunger into the plunger insertion hole.

3. the rack is disposed adjacent to the fixed plate such that the opening faces the fixed plate when viewed along a radial direction of the rotation shaft, The fixing plate has a through hole formed therein, 3. The angle detection device checking jig according to claim 1, wherein the opening is located within the area of ​​the through hole when viewed along the axial direction of the rotation shaft.

4. 4. The angle detection device checking jig according to claim 1, further comprising a rotation damper device that reduces the speed of rotation of the rack.

5. 5. The angle detection device verification jig according to claim 4, wherein the rotary damper device includes a damper rotating shaft provided coaxially with the rotating shaft, a damper rotating shaft fixing portion that fixes the damper rotating shaft to the rack, a damper main body that decelerates the rotation of the damper rotating shaft, and a damper case that supports the damper main body and is fixed to the fixing plate.

6. 5. The angle detection device verification jig according to claim 4, wherein the rotary damper device comprises: a damper rotating shaft that is provided coaxially with the rotating shaft and connected to the rotating shaft; a damper body that decelerates the rotation of the damper rotating shaft; and a damper fixing metal fitting that supports the damper body and is fixed to the rack.

7. a bottom plate fixed to the fixed plate; a first bearing device interposed between the fixed plate and the rotating shaft to allow the rotating shaft to rotate relative to the fixed plate; a second bearing device interposed between the bottom plate and the rotary shaft to allow the rotary shaft to rotate relative to the bottom plate; Equipped with The angle detection device checking jig according to any one of claims 1 to 6, wherein the rotation shaft is fixed to the rack.

8. a third bearing device interposed between the rack and the rotating shaft to allow the rotating shaft to rotate relative to the rack; The angle detection device checking jig according to claim 1 , wherein the rotation shaft is fixed to the fixing plate.

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