Motors and Rotary Devices

Abstract

The present invention provides a motor that enables smooth movement of a slider in the axial direction of a lead screw. [Solution] The motor 13 includes a slider 18 that engages with a lead screw 14b and a guide shaft 30 for guiding the slider in the Y direction, which is the axial direction of the lead screw. In the screw engagement portion 18f of the slider that engages with the lead screw, a first notch 18u is formed in the first wall portion 18h on the Z1 direction side, cut out from both ends of the first wall portion in the Y direction toward the inside in the Y direction, and a first opening is formed in the second wall portion 18j on the Z2 direction side, penetrating the second wall portion at an intermediate position in the Y direction of the second wall portion. In the guide shaft engagement portion 18g of the slider, a second opening 18w is formed in the third wall portion 18n on the Z1 direction side, penetrating the third wall portion at an intermediate position in the Y direction of the third wall portion, and a second notch is formed in the fourth wall portion on the Z2 direction side, cut out from both ends of the fourth wall portion in the Y direction toward the inside in the Y direction.

Description

Technical Field

[0001] The present invention relates to a motor. The present invention also relates to a rotating device.

Background Art

[0002] Conventionally, a geared motor including a motor and a planetary gear mechanism has been known (see, for example, Patent Document 1). The geared motor described in Patent Document 1 includes a lead screw, a nut member engaged with the lead screw, and a guide shaft for guiding the nut member in the axial direction of the lead screw. The lead screw and the guide shaft are arranged in parallel. The nut member is formed with a through hole in which the lead screw is arranged on the inner peripheral side and a through hole in which the guide shaft is arranged on the inner peripheral side.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The inventor of the present application has developed a motor including a lead screw, a slider engaged with the lead screw and linearly moving in the axial direction of the lead screw, and a guide shaft for guiding the slider in the axial direction of the lead screw, like the geared motor described in Patent Document 1, for example. In the motor under development, it is preferable that the slider operates smoothly in the axial direction of the lead screw.

[0005] Therefore, an object of the present invention is to provide a motor that includes a lead screw, a slider that engages with the lead screw and moves linearly in the axial direction of the lead screw, and a guide shaft for guiding the slider in the axial direction of the lead screw, and that is capable of smoothly operating the slider in the axial direction of the lead screw. Another object of the present invention is to provide a rotating device equipped with such a motor. [Means for solving the problem]

[0006] To solve the above problems, a motor according to one aspect of the present invention comprises a stator, a rotor having a lead screw, a slider having a screw portion that engages with the lead screw and moves linearly in the axial direction of the lead screw when the lead screw rotates, and a guide shaft for guiding the slider in the axial direction of the lead screw. The axial direction of the lead screw is defined as the first direction, the direction perpendicular to the first direction as the second direction, the direction perpendicular to the first and second directions as the third direction, one side of the second direction as the fourth direction side, and the other side of the second direction opposite to the fourth direction side as the fifth direction side. When viewed from the second direction, the lead screw and the guide shaft are arranged parallel to each other and aligned in the third direction. The slider comprises a screw engagement portion that engages with the lead screw and a guide shaft engagement portion that engages with the guide shaft. The screw engagement portion comprises a first wall portion on which the fourth direction side of the screw engagement portion is formed, and the fifth direction side of the screw engagement portion The guide shaft engagement portion comprises a second wall portion on which a surface is formed, a third wall portion on which the fourth-direction side surface of the guide shaft engagement portion is formed, and a fourth wall portion on which the fifth-direction side surface of the guide shaft engagement portion is formed, a part of the lead screw is positioned between the first wall portion and the second wall portion in the second direction, a part of the guide shaft is positioned between the third wall portion and the fourth wall portion in the second direction, the first wall portion has notches cut out from both ends of the first wall portion in the first direction toward the inside in the first direction and in the second direction The material is characterized in that a first notch is formed in the wall portion, a first opening is formed in the second wall portion at an intermediate position in the first direction and penetrates the second wall portion in the second direction, a second opening is formed in the third wall portion at an intermediate position in the first direction and penetrates the third wall portion in the second direction, and a second notch is formed in the fourth wall portion, which is cut out from both ends of the fourth wall portion in the first direction toward the inside in the first direction and penetrates the third wall portion in the second direction.

[0007] In the motor of this embodiment, the screw engagement portion that engages with the lead screw has a first notch formed in the first wall portion, which is cut out from both ends of the first wall portion in the first direction toward the inside in the first direction and penetrates the first wall portion in the second direction, and a first opening formed in the second wall portion at an intermediate position in the first direction of the second wall portion, which penetrates the second wall portion in the second direction. Therefore, in this embodiment, compared to the case in which the first notch portion and the first opening are not formed in the screw engagement portion, it is possible to reduce the sliding resistance between the lead screw and the screw engagement portion when the lead screw rotates and the slider moves in the axial direction of the lead screw.

[0008] Furthermore, in this embodiment, in the guide shaft engagement portion that engages with the guide shaft, a second opening is formed in the third wall portion at an intermediate position in the first direction of the third wall portion, penetrating the third wall portion in the second direction, and a second notch is formed in the fourth wall portion, cut out from both ends in the first direction of the fourth wall portion toward the inside in the first direction, and penetrating the fourth wall portion in the second direction. Therefore, in this embodiment, compared to the case in which the second opening and the second notch are not formed in the guide shaft engagement portion, it is possible to reduce the sliding resistance between the guide shaft and the guide shaft engagement portion when the slider moves in the axial direction of the lead screw.

[0009] Furthermore, in this embodiment, on the fourth direction side of the slider, structural parts of the slider remain on both sides of the second opening in the first direction, and on the fifth direction side of the slider, structural parts of the slider remain on both sides of the first opening in the first direction. Therefore, in this embodiment, even if the first notch, second notch, first opening, and second opening are formed in the slider, it is possible to suppress the rattle of the slider relative to the lead screw and guide shaft when the slider moves in the axial direction of the lead screw.

[0010] Thus, in this embodiment, when the slider moves in the axial direction of the lead screw, it is possible to reduce the sliding resistance between the lead screw and the slider, and the sliding resistance between the guide shaft and the slider, and to suppress the rattle of the slider relative to the lead screw and the guide shaft. Therefore, in this embodiment, it is possible to operate the slider smoothly in the axial direction of the lead screw.

[0011] The motor of this embodiment can be used, for example, in a rotating device for rotating a predetermined object. This rotating device comprises, for example, a link member whose one end is rotatably connected to a slider, and an output shaft formed or fixed to the other end of the link member and into which an engaging portion of the object to be rotated engages. If one side of the third direction is designated as the sixth direction side, and the other side of the third direction opposite to the sixth direction side is designated as the seventh direction side, then the axial direction of the output shaft is parallel to the second direction, one end of the link member is rotatable relative to the slider with the second direction as the axial direction of rotation, and the output shaft is positioned on the sixth direction side of the slider. This rotating device makes it possible to smoothly operate the slider in the axial direction of the lead screw. [Effects of the Invention]

[0012] As described above, in one aspect of the present invention, in a motor comprising a lead screw, a slider that engages with the lead screw and moves linearly in the axial direction of the lead screw, and a guide shaft for guiding the slider in the axial direction of the lead screw, it becomes possible to smoothly operate the slider in the axial direction of the lead screw. [Brief explanation of the drawing]

[0013] [Figure 1] Figure 1 is a perspective view of a rotating device according to an embodiment of the present invention. [Figure 2] Figure 2 is a perspective view of the air outlet section for a vehicle to which the rotating device shown in Figure 1 is attached. [Figure 3]Figure 3 is a schematic view of a dashboard of a vehicle in which the air outlet portion shown in Figure 2 is incorporated. [Figure 4] Figure 4 is a schematic view for explaining the internal configuration of the air outlet portion shown in Figure 2. [Figure 5] Figure 5 is a perspective view of the state where the second case body is removed from the rotating device shown in Figure 1. [Figure 6] Figure 6 is a perspective view of the slider shown in Figure 5. [Figure 7] Figure 7 is a perspective view of the slider shown in Figure 6 from different directions. [Figure 8] Figure 8 is a cross-sectional view of the slider shown in Figure 6. [Figure 9] Figure 9 is a perspective view of a motor according to another embodiment of the present invention. [Figure 10] Figure 10 is a cross-sectional view of the E-E cross-section of Figure 9. [Figure 11] Figure 11 is a perspective view of the slider shown in Figure 9. [Figure 12] Figure 12 is a perspective view of the slider shown in Figure 11 from different directions. [Figure 13] Figure 13 is a cross-sectional view of the slider shown in Figure 11.

Embodiments for Carrying Out the Invention

[0014] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0015] (Schematic Configuration of the Rotating Device) Figure 1 is a perspective view of a rotating device 2 according to an embodiment of the present invention. Figure 2 is a perspective view of an air outlet portion 4 for a vehicle to which the rotating device 2 shown in Figure 1 is attached. Figure 3 is a schematic view of a dashboard 7 of a vehicle in which the air outlet portion 4 shown in Figure 2 is incorporated. Figure 4 is a schematic view for explaining the internal configuration of the air outlet portion 4 shown in Figure 2. Figure 5 is a perspective view of the state where the second case body 37 is removed from the rotating device 2 shown in Figure 1.

[0016] The rotating device 2 of this embodiment is a device for rotating a predetermined object to be rotated. The object to be rotated in this embodiment is the fins 5 and 6 for adjusting the air direction installed in the air outlet portion 4 for vehicles (see Fig. 4). As shown in Fig. 3, the air outlet portion 4 is incorporated in, for example, the dashboard 7 of an automobile and constitutes the air outlet of the in-vehicle air conditioner. In the housing 8 of the air outlet portion 4, a plurality of fins 5 arranged in the vertical direction and a plurality of fins 6 arranged in the horizontal direction are accommodated.

[0017] A cover 9 covering the fins 5 and 6 is attached to the housing 8. In the air outlet portion 4 incorporated in the dashboard 7, the cover 9 side faces the interior side of the vehicle. The fin 5 is rotatable with the horizontal direction as the axial direction of rotation. The fin 6 is rotatable with the vertical direction as the axial direction of rotation. As shown in Fig. 2, two rotating devices 2 are attached to the air outlet portion 4. Specifically, two rotating devices 2 are fixed to the housing 8. One of the two rotating devices 2 rotates the plurality of fins 5. The other rotating device 2 rotates the plurality of fins 6.

[0018] The thickness of the rotating device 2 of this embodiment is thin. For example, the thickness of the rotating device 2 is about 10 (mm). Therefore, as shown in Fig. 2, by attaching the rotating device 2 along the side surface of the housing 8 so that the direction of the normal line of the side surface of the housing 8 coincides with the thickness direction of the rotating device 2, it is possible to suppress the amount of protrusion of the rotating device 2 from the housing 8. A rotating shaft 10 (see Fig. 1) connected to the fins 5 and 6 is connected to the rotating device 2. When the rotating shaft 10 rotates, the fins 5 and 6 rotate.

[0019] The rotating device 2 is equipped with a motor 13 as a drive source. The motor 13 is a stepping motor. The motor 13 comprises a rotor 15 having a rotating shaft 14 and drive magnets, and a stator 16 having drive coils and positioned on the outer circumference of the drive magnets. The output side portion of the rotating shaft 14 protrudes further outward than the stator 16. The portion of the rotating shaft 14 that protrudes further outward than the stator 16 is a lead screw 14b with a lead screw formed on its outer circumference. In other words, the rotor 15 is equipped with a lead screw 14b. The rotation center of the lead screw 14b coincides with the rotation center of the rotor 15.

[0020] The motor 13 also includes a slider 18 on which a threaded portion 18b (see Figure 8) is formed to engage with the lead screw 14b. The slider 18 moves linearly in the axial direction of the lead screw 14b as the lead screw 14b rotates. The rotating device 2 includes a link member 19, one end of which is rotatably connected to the slider 18; an output shaft 20 formed or fixed to the other end of the link member 19 and into which the rotating shaft 10 engages; and a case body 21 that houses at least the motor 13. In this embodiment, the rotating shaft 10 is an engaging portion that engages with the output shaft 20.

[0021] In the following explanation, the Y direction in Figure 1, which is the axial direction of the lead screw 14b (i.e., the axial direction of the rotor 15), will be referred to as the "left-right direction," the Z direction in Figure 1, which is perpendicular to the left-right direction, will be referred to as the "up-down direction," and the X direction in Figure 1, which is perpendicular to both the left-right and up-down directions, will be referred to as the "front-back direction." Furthermore, one side of the front-back direction, the X2 direction in Figure 1, will be referred to as the "rear" side, and the opposite side, the X1 direction in Figure 1, will be referred to as the "front" side, one side of the left-right direction, the Y1 direction in Figure 1, will be referred to as the "right" side, and the opposite side, the Y2 direction in Figure 1, will be referred to as the "left" side, one side of the up-down direction, the Z1 direction in Figure 1, will be referred to as the "up" side, and the opposite side, the Z2 direction in Figure 1, will be referred to as the "down" side.

[0022] In this configuration, the left-right direction (Y direction) is the first direction, which is the axial direction of the lead screw 14b. The up-down direction (Z direction) is the second direction, which is perpendicular to the axial direction of the lead screw 14b, and the front-back direction (X direction) is the third direction, which is perpendicular to both the first and second directions. Furthermore, the upper side (Z1 direction side) is the fourth direction side, which is one side of the second direction, the lower side (Z2 direction side) is the fifth direction side, which is the opposite side of the fourth direction, the rear side (X2 direction side) is the sixth direction side, which is one side of the third direction, and the front side (X1 direction side) is the seventh direction side, which is the opposite side of the sixth direction. The rotating device 2 is formed in a flat shape with a thin thickness in the vertical direction. The axial direction of the output shaft 20 is parallel to the up-down direction. The output shaft 20 is positioned behind the lead screw 14b and the slider 18.

[0023] (Overall motor configuration) As described above, the motor 13 is equipped with a lead screw 14b. The lead screw 14b protrudes to the left from the stator 16. That is, the stator 16 is located to the right of the lead screw 14b. When viewed from the left or right direction, the outer shape of the stator 16 is circular. A trapezoidal thread is formed on the outer surface of the lead screw 14b. The right end of the lead screw 14b is located to the right of the output shaft 20. The left end of the lead screw 14b is located to the left of the output shaft 20. Note that a square thread may also be formed on the outer surface of the lead screw 14b.

[0024] In addition to the rotor 15 and stator 16, the motor 13 includes a metal motor frame 24 fixed to the stator 16, a bearing 25 supporting the left end of the rotating shaft 14 (i.e., the output end of the lead screw 14b), a bearing supporting the right end of the rotating shaft 14, and a leaf spring biasing the rotating shaft 14 to the left. The motor 13 also includes a flat circuit board 27 for driving and controlling the motor 13, a flexible printed circuit board 28 (hereinafter referred to as "FPC28") electrically connecting the stator 16 and the circuit board 27, and a connector 29 mounted on the circuit board 27. Furthermore, the motor 13 includes a guide shaft 30 for guiding the slider 18 in the left-right direction. In this embodiment, the motor 13 has only one guide shaft 30.

[0025] The motor frame 24 is formed by bending a metal plate of a predetermined shape into a predetermined shape. The motor frame 24 includes a flat stator fixing portion 24b fixed to the stator 16, a flat screw holding portion 24c that rotatably holds the tip (left end) of the lead screw 14b, and a flat connecting portion 24d that connects the stator fixing portion 24b and the screw holding portion 24c. The connecting portion 24d is formed as a flat plate with its thickness in the vertical direction. The connecting portion 24d is also formed as a long, narrow rectangular flat plate in the horizontal direction.

[0026] The stator fixing portion 24b rises upward from the right end of the connecting portion 24d. The screw holding portion 24c rises upward from the left end of the connecting portion 24d. The stator fixing portion 24b and the screw holding portion 24c are formed in a flat plate shape with the left-right direction as the thickness direction. The lower end of the stator 16 is positioned below the lower surface of the connecting portion 24d. The screw holding portion 24c holds the bearing 25. That is, the screw holding portion 24c rotatably holds the left end of the lead screw 14b via the bearing 25. The left end face of the stator 16 is fixed to the stator fixing portion 24b. A through hole is formed in the stator fixing portion 24b in which a part of the rotating shaft 14 is positioned.

[0027] The motor frame 24 is housed in the case body 21. As described later, the case body 21 is composed of a first case body 36 and a second case body 37, which are divided vertically. The motor frame 24 is fixed to the case body 21 by being sandwiched between the first case body 36 and the second case body 37. In other words, the motor 13 is fixed to the case body 21 by being sandwiched between the first case body 36 and the second case body 37.

[0028] The guide shaft 30 is formed in an elongated cylindrical shape with its axis oriented in the left-right direction. When viewed from above, the guide shaft 30 is positioned in front of the lead screw 14b. That is, when viewed from above, the guide shaft 30 and the lead screw 14b are positioned parallel to each other and aligned in the front-to-back direction. In the vertical direction, the guide shaft 30 is positioned at the same location as the lead screw 14b. The right end of the guide shaft 30 is held by the stator fixing part 24b. The left end of the guide shaft 30 is held by the screw holding part 24c.

[0029] The circuit board 27 is a rigid substrate such as a glass epoxy substrate. The circuit board 27 is formed in a flat plate shape with the vertical direction as the thickness direction. The circuit board 27 is housed in the case body 21. The circuit board 27 is fixed to the case body 21 by being sandwiched between the first case body 36 and the second case body 37, which will be described later. The circuit board 27 consists of a first circuit board section 27b located on the right side of the stator 16 and a second circuit board section 27c which is connected to the first circuit board section 27b and a part of which is located on the rear side of the stator 16.

[0030] The FPC28 consists of a first circuit board portion 28b, which is soldered and fixed to terminal pins protruding from the rear of the stator 16, and a second circuit board portion 28c, which is soldered and fixed to the second circuit board portion 27c. A thin plate-shaped reinforcing plate 33 is fixed to the first circuit board portion 28b. The left end of the first circuit board portion 28b is held at the rear end of the stator fixing portion 24b. The second circuit board portion 28c is connected to the right end of the first circuit board portion 28b. The connector 29 is mounted on the upper surface of the first circuit board portion 27b. The connector 29 is housed in the case body 21. The insertion opening of the connector 29 faces to the right. The mating connector is inserted into the connector 29 from the right side.

[0031] (Construction of the case) The case body 21 is formed in a flat shape with a thin thickness in the vertical direction. In addition to the motor 13, the link member 19 is housed in the case body 21. The case body 21 has a housing section 21b in which the motor 13 and the link member 19 are housed, and three fixing sections 21c that are fixed to the housing 8 of the air outlet section 4 (see Figure 1). In this embodiment, the case body 21 is composed of the housing section 21b and the three fixing sections 21c.

[0032] The case body 21 rotatably holds the output shaft 20. Specifically, the case body 21 rotatably holds the output shaft 20 near the rear end of the housing section 21b. The case body 21 is composed of a first case body 36 and a second case body 37, which are divided vertically. The first case body 36 constitutes the lower half of the case body 21, and the upper side of the first case body 36 is open. The second case body 37 constitutes the upper half of the case body 21, and the lower side of the second case body 37 is open. The first case body 36 and the second case body 37 are fixed to each other by a snap fit.

[0033] The first case body 36 comprises a flat lower surface portion 36b that forms the lower surface of the housing portion 21b, and a side portion 36c that forms the lower part of the side surface of the housing portion 21b. The lower surface portion 36b is formed in a flat shape with the vertical direction being the thickness direction. A retaining hole for holding the output shaft 20 is formed at the rear end of the lower surface portion 36b. A protruding rib 36f is formed on the upper surface of the lower surface portion 36b that can contact the link member 19 housed in the case body 21 from below. A recess for positioning the connection portion 24d of the motor frame 24 is formed at the front end of the lower surface portion 36b. An opening for positioning the lower end of the stator 16 is formed at the right front end of the lower surface portion 36b.

[0034] The second case body 37 comprises a flat upper surface portion 37b that constitutes the upper surface of the housing portion 21b, and a side portion 37c that constitutes the upper part of the side surface of the housing portion 21b. The upper surface portion 37b is formed in a flat shape with the vertical direction as the thickness direction. A retaining hole 37e for holding the output shaft 20 is formed at the rear end of the upper surface portion 37b. A protruding rib is formed on the lower surface of the upper surface portion 37b that can contact the link member 19 housed in the case body 21 from above. An opening 37h is formed at the right front end of the upper surface portion 37b, where the upper end of the stator 16 and the upper end of the stator fixing portion 24b are positioned. The second case body 37 has a plurality of elastically deformable engaging pieces 37r that snap-fit ​​into the first case body 36.

[0035] (Slider configuration) Figure 6 is a perspective view of the slider 18 shown in Figure 5. Figure 7 is a perspective view of the slider 18 shown in Figure 6 from a different direction. Figure 8 is a cross-sectional view of the slider 18 shown in Figure 6.

[0036] The slider 18 is a resin molded product formed by resin molding. The slider 18 is positioned between the stator fixing portion 24b and the screw holding portion 24c of the motor frame 24 in the left-right direction, and is positioned above the connecting portion 24d. The slider 18 consists of a slider body portion 18c that engages with the lead screw 14b and the guide shaft 30, and a connecting portion 18d to which one end of the link member 19 is connected. The connecting portion 18d is positioned behind the slider body portion 18c. The connecting portion 18d includes a fixed shaft portion 18e which serves as the pivot point of the link member 19 relative to the slider 18. The axial direction of the fixed shaft portion 18e coincides with the vertical direction. That is, one end of the link member 19 is rotatable relative to the slider 18 with the vertical direction as the axis of rotation.

[0037] The slider body 18c is formed in a substantially rectangular parallelepiped shape overall. When viewed from above, the outer shape of the slider body 18c is rectangular, with the left-right direction being the longer side. The upper and lower surfaces of the slider body 18c are planes perpendicular to the vertical direction. The upper surface of the slider body 18c and the upper end surface of the fixed shaft portion 18e are positioned at approximately the same location in the vertical direction. The lower surface of the connecting portion 18d is a plane that lies on the same plane as the lower surface of the slider body 18c. The slider body 18c includes a screw engagement portion 18f that engages with the lead screw 14b and a guide shaft engagement portion 18g that engages with the guide shaft 30. In this embodiment, the slider body 18c is composed of the screw engagement portion 18f and the guide shaft engagement portion 18g.

[0038] The screw engagement portion 18f is located behind the guide shaft engagement portion 18g. As described above, the connecting portion 18d is located behind the slider body portion 18c, and one end of the link member 19 is connected to the slider 18 behind the screw engagement portion 18f. The screw engagement portion 18f and the guide shaft engagement portion 18g are formed in a rectangular tubular shape with openings at both ends in the left-right direction. When viewed from the left-right direction, the inner circumferential surfaces of the screw engagement portion 18f and the inner circumferential surfaces of the guide shaft engagement portion 18g are square in shape with the vertical direction as one of the sides.

[0039] The screw engagement portion 18f includes an upper wall portion 18h as a first wall portion on which the upper surface of the screw engagement portion 18f is formed, a lower wall portion 18j as a second wall portion on which the lower surface of the screw engagement portion 18f is formed, and a rear wall portion 18k on which the rear surface of the screw engagement portion 18f is formed. The guide shaft engagement portion 18g includes an upper wall portion 18n as a third wall portion on which the upper surface of the guide shaft engagement portion 18g is formed, a lower wall portion 18p as a fourth wall portion on which the lower surface of the guide shaft engagement portion 18g is formed, and a front wall portion 18r on which the front surface of the guide shaft engagement portion 18g is formed. Furthermore, the screw engagement portion 18f and the guide shaft engagement portion 18g include a common wall portion 18s on which the front surface of the inner circumferential surface of the screw engagement portion 18f is formed and the rear surface of the inner circumferential surface of the guide shaft engagement portion 18g is formed.

[0040] The screw engagement portion 18f is composed of an upper wall portion 18h, a lower wall portion 18j, a rear wall portion 18k, and a common wall portion 18s. The screw engagement portion 18f covers a portion of the lead screw 14b from both sides in the front-rear direction and both sides in the up-down direction. In addition, a portion of the lead screw 14b is positioned between the upper wall portion 18h and the lower wall portion 18j in the up-down direction, and between the rear wall portion 18k and the common wall portion 18s in the front-rear direction.

[0041] The guide shaft engagement portion 18g is composed of an upper wall portion 18n, a lower wall portion 18p, a front wall portion 18r, and a common wall portion 18s. The guide shaft engagement portion 18g covers a portion of the guide shaft 30 from both sides in the front-rear direction and both sides in the up-down direction. Furthermore, a portion of the guide shaft 30 is positioned between the upper wall portion 18n and the lower wall portion 18p in the up-down direction, and between the front wall portion 18r and the common wall portion 18s in the front-rear direction.

[0042] The upper wall sections 18h and 18n and the lower wall sections 18j and 18p are formed in a flat plate shape with the vertical direction being the thickness direction. The rear wall section 18k, the front wall section 18r, and the common wall section 18s are formed in a flat plate shape with the front-to-back direction being the thickness direction. The upper surface of the slider body section 18c is composed of the upper surface of the upper wall section 18h and the upper surface of the upper wall section 18n. The lower surface of the slider body section 18c is composed of the lower surface of the lower wall section 18j and the lower surface of the lower wall section 18p.

[0043] The upper wall portion 18h has a notch portion 18u formed as a first notch portion, which is cut out from both ends in the left-right direction of the upper wall portion 18h toward the inside in the left-right direction. In other words, there are two notches 18u formed in the upper wall portion 18h. The notches 18u penetrate the upper wall portion 18h in the vertical direction. The lower wall portion 18j has an opening 18v formed as a first opening portion, which penetrates the lower wall portion 18j in the vertical direction at an intermediate position in the left-right direction of the lower wall portion 18j.

[0044] The upper wall portion 18n has an opening 18w, which is a second opening that penetrates the upper wall portion 18n vertically at an intermediate position in the left-right direction of the upper wall portion 18n. The lower wall portion 18p has a notch portion 18x, which is a second notch portion that is cut out from both ends in the left-right direction of the lower wall portion 18p toward the inside in the left-right direction. In other words, there are two notches 18x in the lower wall portion 18p. The notches 18x penetrate the lower wall portion 18p vertically.

[0045] When viewed from above, the outer shape of the notch 18u is rectangular with the front-to-back direction as the longer side. When viewed from above, the outer shapes of the notch 18x and the openings 18v and 18w are rectangular with the left-to-right direction as the longer side. The right side of opening 18v is positioned to the right of the left side of the notch 18u formed on the right side. The left side of opening 18v is positioned to the left of the right side of the notch 18u formed on the left side. The right side of opening 18w is positioned to the right of the left side of the notch 18x formed on the right side. The left side of opening 18w is positioned to the left of the right side of the notch 18x formed on the left side.

[0046] The front surface of the notch 18u and the front surface of the opening 18v are located at the same position in the front-to-back direction, and the rear surface of the notch 18u and the rear surface of the opening 18v are located at the same position in the front-to-back direction. The right surface of the opening 18v and the right surface of the opening 18w are located at the same position in the left-to-right direction. The left surface of the opening 18v and the left surface of the opening 18w are located at the same position in the left-to-right direction. The left surface of the notch 18u formed on the right side is located to the left of the left surface of the notch 18x formed on the right side. The right surface of the notch 18u formed on the left side is located to the right of the right surface of the notch 18x formed on the left side.

[0047] The front-to-rear sides of the inner circumferential surface of the screw engagement portion 18f (i.e., the front surface of the rear side wall portion 18k and the rear surface of the common wall portion 18s) are engagement portion sides 18y and 18z, which are located on both sides of the lead screw 14b in the front-to-rear direction. In other words, the screw engagement portion 18f has two engagement portion sides 18y and 18z. The engagement portion sides 18y and 18z are planes perpendicular to the front-to-rear direction. In this embodiment, the engagement portion side 18y is located on the rear side, and the engagement portion side 18z is located on the front side.

[0048] The engaging portion side surface 18y is positioned at the same location in the front-rear direction as the rear surfaces of the notch 18u and the opening 18v, and is coplanar with the rear surfaces of the notch 18u and the opening 18v. The engaging portion side surface 18z is positioned at the same location in the front-rear direction as the front surfaces of the notch 18u and the opening 18v, and is coplanar with the front surfaces of the notch 18u and the opening 18v.

[0049] The threaded portion 18b is formed on two engagement portion sides 18y and 18z. On the rear engagement portion side 18y, the threaded portion 18b is formed at the position where the opening 18v is formed in the left-right direction. On the engagement portion side 18y, the threaded portion 18b is formed at the center position of the slider 18 in the left-right direction. On the front engagement portion side 18z, the threaded portion 18b is formed at the position where the notch 18u is formed in the left-right direction. That is, on the engagement portion side 18z, the threaded portion 18b is formed at both ends of the slider 18 in the left-right direction.

[0050] The threaded portion 18b formed on the engagement portion side surface 18y is composed of multiple threads arranged in the axial direction (left-right direction) of the lead screw 14b. In this embodiment, the threaded portion 18b formed on the engagement portion side surface 18y is composed of three threads. The threaded portion 18b formed at the right end of the engagement portion side surface 18z is composed of one thread, and the threaded portion 18b formed at the left end of the engagement portion side surface 18z is composed of one thread.

[0051] The screw threads are formed in a straight line that is slightly inclined with respect to the vertical direction. The threaded portion 18b formed on the engagement portion side surface 18y is formed in a rack shape. The threads of the threaded portion 18b formed on the engagement portion side surface 18y are slightly inclined to the right as they are directed upwards. The threads of the threaded portion 18b formed on the engagement portion side surface 18z are slightly inclined to the left as they are directed upwards. The threads of the threaded portion 18b may also be formed parallel to the vertical direction.

[0052] In this embodiment, the right and left surfaces of the opening 18v are slightly inclined to the right as they move upward, similar to the threads of the threaded portion 18b formed on the engagement portion side surface 18y. The inclination angles of the right and left surfaces of the opening 18v are equal to the inclination angles of the threads of the threaded portion 18b formed on the engagement portion side surface 18y. The left surface of the notch 18u located on the right side and the right surface of the notch 18u located on the left side are slightly inclined to the left as they move upward, similar to the threads of the threaded portion 18b formed on the engagement portion side surface 18z. The inclination angles of the left surface of the notch 18u located on the right side and the right surface of the notch 18u located on the left side are equal to the inclination angles of the threads of the threaded portion 18b formed on the engagement portion side surface 18z.

[0053] (Output shaft and link member configuration) The output shaft 20 is formed at the other end of the link member 19. The output shaft 20 is formed in a cylindrical shape with its axial direction in the vertical direction. The lower end of the output shaft 20 is inserted into a retaining hole in the lower surface portion 36b. The upper end of the output shaft 20 is inserted into a retaining hole 37e in the upper surface portion 37b. The inner circumferential surface of the output shaft 20 has a cross-shaped engagement hole 20b into which the pivot shaft 10 engages.

[0054] The link member 19 is formed in a block shape that has an oval shape when viewed from above. The length of the link member 19 is relatively short. In addition, the link member 19 is formed in a flat shape with a thin thickness in the vertical direction. The link member 19 comprises a first link member 40 on which the output shaft 20 is formed, and a second link member 41 that is rotatably connected to the slider 18. In this embodiment, the link member 19 is composed of the first link member 40 and the second link member 41.

[0055] The second link member 41 is movably held by the first link member 40. The connection between the second link member 41 and the slider 18 is defined as the slider connection portion 42. If the direction of the imaginary straight line connecting the center of the output shaft 20 and the center of the slider connection portion 42, when viewed from above, is defined as the longitudinal direction of the link member 19, then the second link member 41 is linearly movable relative to the first link member 40 in the longitudinal direction of the link member 19.

[0056] In the rotating device 2, when the motor 13 is driven and the lead screw 14b rotates, the slider 18 moves left and right along the lead screw 14b and the guide shaft 30. As the slider 18 moves left and right, the link member 19 rotates around the output shaft 20 as the pivot point. When the link member 19 rotates, the second link member 41 moves relative to the first link member 40 in the longitudinal direction of the link member 19, causing the link member 19 to extend or retract. Also, when the link member 19 rotates, the output shaft 20 rotates as well. When the output shaft 20 rotates, the pivot shaft 10 rotates. The output shaft 20 can rotate, for example, up to 90°.

[0057] (Main effects of this form) As described above, in the slider 18 of this embodiment, in the screw engagement portion 18f that engages with the lead screw 14b, a notch 18u is formed in the upper wall portion 18h, which is cut out from both ends of the upper wall portion 18h in the left-right direction toward the inside in the left-right direction and penetrates the upper wall portion 18h in the vertical direction, and an opening 18v is formed in the lower wall portion 18j at an intermediate position in the left-right direction of the lower wall portion 18j, which penetrates the lower wall portion 18j in the vertical direction. Therefore, in this embodiment, compared to the case in which the notch 18u and the opening 18v are not formed, it is possible to reduce the sliding resistance between the lead screw 14b and the screw engagement portion 18f when the lead screw 14b rotates and the slider 18 moves in the left-right direction.

[0058] Furthermore, in this embodiment, in the guide shaft engaging portion 18g that engages with the guide shaft 30, an opening 18w is formed in the upper wall portion 18n at an intermediate position in the left-right direction of the upper wall portion 18n, penetrating the upper wall portion 18n in the vertical direction, and a notch portion 18x is formed in the lower wall portion 18p, cut out from both ends in the left-right direction toward the inside in the left-right direction, and penetrating the lower wall portion 18p in the vertical direction. Therefore, in this embodiment, compared to the case where the opening 18w and the notch portion 18x are not formed, it is possible to reduce the sliding resistance between the guide shaft 30 and the guide shaft engaging portion 18g when the slider 18 moves in the left-right direction.

[0059] Furthermore, in this embodiment, on the upper side of the slider 18, structural parts of the slider 18 remain on both sides in the left-right direction of the opening 18w, and on the lower side of the slider 18, structural parts of the slider 18 remain on both sides in the left-right direction of the opening 18v. Specifically, on the upper side of the slider 18, the left and right end portions of the upper wall portion 18n connecting the front wall portion 18r and the common wall portion 18s remain, and on the lower side of the slider 18, the left and right end portions of the upper wall portion 18h connecting the rear wall portion 18k and the common wall portion 18s remain. Therefore, in this embodiment, even though notches 18u, 18x and openings 18v, 18w are formed in the slider 18, it is possible to suppress rattling of the slider 18 relative to the lead screw 14b and the guide shaft 30 when the slider 18 moves in the left-right direction.

[0060] Thus, in this embodiment, when the slider 18 moves in the left-right direction, it is possible to reduce the sliding resistance between the lead screw 14b and the slider 18, and between the guide shaft 30 and the slider 18, and to suppress the rattle of the slider 18 relative to the lead screw 14b and the guide shaft 30. Therefore, in this embodiment, it is possible to operate the slider 18 smoothly in the left-right direction, which is the axial direction of the lead screw 14b.

[0061] In this embodiment, on the engagement portion side surface 18y, a threaded portion 18b is formed at the position where the opening 18v is formed in the left-right direction, and on the engagement portion side surface 18z, a threaded portion 18b is formed at the position where the notch 18u is formed in the left-right direction. That is, on the engagement portion side surface 18y located behind the lead screw 14b, a threaded portion 18b is formed at the center position of the slider 18 in the left-right direction, and on the engagement portion side surface 18z located in front, threaded portions 18b are formed at both ends of the slider 18 in the left-right direction. Therefore, in this embodiment, power can be transmitted from the lead screw 14b to the slider 18 in a balanced manner over the entire left-right range. Consequently, in this embodiment, the slider 18 can be operated more smoothly in the left-right direction.

[0062] Furthermore, in this embodiment, a threaded portion 18b is formed on the engagement portion side surface 18y at the position where an opening 18v is formed in the left-right direction, and a threaded portion 18b is formed on the engagement portion side surface 18z at the position where a notch 18u is formed in the left-right direction. Therefore, when manufacturing the slider 18, which is a resin molded product, it is possible to form the threaded portions 18b on the engagement portion sides 18y and 18z using a mold that is divided in the vertical direction. Consequently, in this embodiment, the slider 18 can be easily manufactured.

[0063] (Example of motor modification) Figure 9 is a perspective view of a motor 13 according to another embodiment of the present invention. Figure 10 is a cross-sectional view of the EE section of Figure 9. Figure 11 is a perspective view of the slider 18 shown in Figure 9. Figure 12 is a perspective view of the slider 18 shown in Figure 11 from a different direction. Figure 13 is a cross-sectional view of the slider 18 shown in Figure 11. In Figures 9 to 13, components similar to those in the above-described embodiments are denoted by the same reference numerals. Also, in Figure 9, the circuit board 27, FPC 28, and connector 29 are omitted from the illustration.

[0064] In the above-described configuration, the motor 13 may be equipped with two guide shafts 50 and 51 for guiding the slider 18 in the left-right direction. The guide shafts 50 and 51 are formed in an elongated cylindrical shape with the left-right direction as their axis, similar to the guide shaft 30. When viewed from above, the guide shaft 50 is positioned in front of the lead screw 14b, and the guide shaft 51 is positioned behind the lead screw 14b. That is, when viewed from above, the guide shafts 50 and 51 and the lead screw 14b are positioned parallel to each other and aligned in the front-to-back direction. Also, when viewed from above, the guide shafts 50 and 51 are positioned on both sides of the lead screw 14b in the front-to-back direction.

[0065] Guide shafts 50 and 51 are positioned at the same location in the vertical direction. Furthermore, guide shafts 50 and 51 are positioned at the same location in the vertical direction as the lead screw 14b. The right ends of guide shafts 50 and 51 are held by the stator fixing portion 24b. The left ends of guide shafts 50 and 51 are held by the screw holding portion 24c.

[0066] Similar to the configuration described above, the slider 18 is composed of a slider body portion 18c that engages with the lead screw 14b and the guide shafts 50 and 51, and a connecting portion 18d to which one end of the link member 19 is connected. The slider body portion 18c includes a screw engaging portion 18f that engages with the lead screw 14b, a guide shaft engaging portion 18g1 that engages with the guide shaft 50, and a guide shaft engaging portion 18g2 that engages with the guide shaft 51. In other words, the slider 18 has two guide shaft engaging portions 18g1 and 18g2. In this modified example, the slider body portion 18c is composed of a screw engaging portion 18f and two guide shaft engaging portions 18g1 and 18g2.

[0067] The guide shaft engaging portion 18g1 is located in front of the screw engaging portion 18f, and the guide shaft engaging portion 18g2 is located behind the screw engaging portion 18f. That is, the guide shaft engaging portions 18g1 and 18g2 are located on both sides of the screw engaging portion 18f in the front-rear direction. The connecting portion 18d is located behind the slider body portion 18c, and one end of the link member 19 is connected to the slider 18 behind the guide shaft engaging portion 18g2.

[0068] The screw engagement portion 18f and the guide shaft engagement portions 18g1 and 18g2 are formed in a rectangular tubular shape with openings at both ends in the left-right direction. When viewed from the left-right direction, the inner circumferential surfaces of the screw engagement portion 18f and the guide shaft engagement portion 18g1 are square in shape with the vertical direction as one of the sides. When viewed from the left-right direction, the inner circumferential surface of the guide shaft engagement portion 18g2 is rectangular in shape with the front-back direction as the longer side.

[0069] The screw engagement portion 18f comprises an upper wall portion 18h on which the upper surface of the screw engagement portion 18f is formed, and a lower wall portion 18j on which the lower surface of the screw engagement portion 18f is formed. The guide shaft engagement portion 18g1 comprises an upper wall portion 18n1 as a third wall portion on which the upper surface of the guide shaft engagement portion 18g1 is formed, a lower wall portion 18p1 as a fourth wall portion on which the lower surface of the guide shaft engagement portion 18g1 is formed, and a front wall portion 18r on which the front surface of the guide shaft engagement portion 18g1 is formed. The guide shaft engagement portion 18g2 comprises an upper wall portion 18n2 as a third wall portion on which the upper surface of the guide shaft engagement portion 18g2 is formed, a lower wall portion 18p2 as a fourth wall portion on which the lower surface of the guide shaft engagement portion 18g2 is formed, and a rear wall portion 18k on which the rear surface of the guide shaft engagement portion 18g2 is formed.

[0070] The screw engagement portion 18f and the guide shaft engagement portion 18g1 are provided with a common wall portion 18s1 on which the front surface of the inner circumferential surface of the screw engagement portion 18f is formed and the rear surface of the inner circumferential surface of the guide shaft engagement portion 18g1 is formed. The screw engagement portion 18f and the guide shaft engagement portion 18g2 are provided with a common wall portion 18s2 on which the rear surface of the inner circumferential surface of the screw engagement portion 18f is formed and the front surface of the inner circumferential surface of the guide shaft engagement portion 18g2 is formed.

[0071] The screw engagement portion 18f is composed of an upper wall portion 18h, a lower wall portion 18j, and common wall portions 18s1 and 18s2. The screw engagement portion 18f covers a portion of the lead screw 14b from both sides in the front-rear direction and both sides in the up-down direction. In addition, a portion of the lead screw 14b is positioned between the upper wall portion 18h and the lower wall portion 18j in the up-down direction, and between the two common wall portions 18s1 and 18s2 in the front-rear direction.

[0072] The guide shaft engagement portion 18g1 is composed of an upper wall portion 18n1, a lower wall portion 18p1, a front wall portion 18r, and a common wall portion 18s1. The guide shaft engagement portion 18g1 covers a portion of the guide shaft 50 from both sides in the front-rear direction and both sides in the up-down direction. Furthermore, a portion of the guide shaft 50 is positioned between the upper wall portion 18n1 and the lower wall portion 18p1 in the up-down direction, and between the front wall portion 18r and the common wall portion 18s1 in the front-rear direction.

[0073] The guide shaft engagement portion 18g2 is composed of an upper wall portion 18n2, a lower wall portion 18p2, a rear wall portion 18k, and a common wall portion 18s2. The guide shaft engagement portion 18g2 covers a portion of the guide shaft 51 from both sides in the front-rear direction and both sides in the up-down direction. Furthermore, a portion of the guide shaft 51 is positioned between the upper wall portion 18n2 and the lower wall portion 18p2 in the up-down direction, and between the rear wall portion 18k and the common wall portion 18s2 in the front-rear direction.

[0074] The upper wall sections 18h, 18n1, 18n2 and the lower wall sections 18j, 18p1, 18p2 are formed in a flat plate shape with the vertical direction being the thickness direction. The rear wall section 18k, the front wall section 18r and the common wall sections 18s1, 18s2 are formed in a flat plate shape with the front-to-back direction being the thickness direction. The upper surface of the slider body section 18c is composed of the upper surface of the upper wall section 18h, the upper surface of the upper wall section 18n1, and the upper surface of the upper wall section 18n2. The lower surface of the slider body section 18c is composed of the lower surface of the lower wall section 18j, the lower surface of the lower wall section 18p1, and the lower surface of the lower wall section 18p2.

[0075] The length of the front wall portion 18r in the left-right direction is equal to the length of the common wall portion 18s1 in the left-right direction. The left and right end faces of the front wall portion 18r and the left and right end faces of the common wall portion 18s1 are positioned at the same location in the left-right direction. The length of the rear wall portion 18k in the left-right direction is equal to the length of the common wall portion 18s2 in the left-right direction. The left and right end faces of the rear wall portion 18k and the left and right end faces of the common wall portion 18s2 are positioned at the same location in the left-right direction.

[0076] The length of the front side wall portion 18r and the common wall portion 18s1 in the left-right direction is longer than the length of the rear side wall portion 18k and the common wall portion 18s2 in the left-right direction. That is, the length of the guide shaft engagement portion 18g1 in the left-right direction is longer than the length of the guide shaft engagement portion 18g2. The right end face of the guide shaft engagement portion 18g1 is positioned to the right of the right end face of the guide shaft engagement portion 18g2, and the left end face of the guide shaft engagement portion 18g1 is positioned to the left of the left end face of the guide shaft engagement portion 18g2.

[0077] Similar to the configuration described above, two notches 18u are formed in the upper wall portion 18h, and an opening 18v is formed in the lower wall portion 18j. The right side of the opening 18v is positioned to the right of the left side of the notch 18u formed on the right side. The left side of the opening 18v is positioned to the left of the right side of the notch 18u formed on the left side. The front surface of the notch 18u and the front surface of the opening 18v are positioned at the same location in the front-to-back direction, and the rear surface of the notch 18u and the rear surface of the opening 18v are positioned at the same location in the front-to-back direction.

[0078] The upper wall portion 18n1 has an opening 18w1 formed as a second opening that penetrates the upper wall portion 18n1 vertically at an intermediate position in the left-right direction of the upper wall portion 18n1. The lower wall portion 18p1 has a notch portion 18x1 formed as a second notch portion that cuts out from both ends in the left-right direction of the lower wall portion 18p1 toward the inside in the left-right direction. In other words, there are two notches 18x1 formed in the lower wall portion 18p1. The notches 18x1 penetrate the lower wall portion 18p1 vertically.

[0079] The upper wall portion 18n2 has an opening 18w2 formed as a second opening that penetrates the upper wall portion 18n2 vertically at an intermediate position in the left-right direction of the upper wall portion 18n2. The lower wall portion 18p2 has a notch portion 18x2 formed as a second notch portion that cuts out from both ends in the left-right direction of the lower wall portion 18p2 toward the inside in the left-right direction. In other words, there are two notches 18x2 formed in the lower wall portion 18p2. The notches 18x2 penetrate the lower wall portion 18p2 vertically.

[0080] When viewed from above or below, the outer shapes of the notches 18x1 and 18x2 and the openings 18w1 and 18w2 are rectangular in shape, with the left-right direction being the longer side. The right side of opening 18w1 is positioned to the right of the left side of the notch 18x1 formed on the right side. The left side of opening 18w1 is positioned to the left of the right side of the notch 18x1 formed on the left side. The right side of opening 18w2 is positioned to the right of the left side of the notch 18x2 formed on the right side. The left side of opening 18w2 is positioned to the left of the right side of the notch 18x2 formed on the left side.

[0081] The width of opening 18w1 in the left-right direction is wider than the width of opening 18w2 in the left-right direction. The width of opening 18w2 in the left-right direction is wider than the width of opening 18v in the left-right direction. The right side of opening 18w1 is positioned to the right of the right side of opening 18w2, and the right side of opening 18w2 is positioned to the right of the right side of opening 18v. The left side of opening 18w1 is positioned to the left of the left side of opening 18w2, and the left side of opening 18w2 is positioned to the left of the left side of opening 18v.

[0082] The left surface of the notch 18x1 formed on the right side is positioned to the right of the left surface of the notch 18x2 formed on the right side, and the left surface of the notch 18x2 formed on the right side is positioned to the right of the left surface of the notch 18u formed on the right side. The right surface of the notch 18x1 formed on the left side is positioned to the left of the right surface of the notch 18x2 formed on the left side, and the right surface of the notch 18x2 formed on the left side is positioned to the left of the right surface of the notch 18u formed on the left side.

[0083] Similar to the configuration described above, the front-rear side surfaces of the inner circumferential surface of the screw engagement portion 18f (i.e., the rear surface of the common wall portion 18s1 and the front surface of the common wall portion 18s2) are engagement portion side surfaces 18y and 18z, which are located on both sides of the lead screw 14b in the front-rear direction. The engagement portion side surface 18y is located on the rear side where the guide shaft engagement portion 18g2 is located, and the engagement portion side surface 18z is located on the front side where the guide shaft engagement portion 18g1 is located. The engagement portion side surface 18y is located on the same plane as the rear surface of the notch portion 18u and the opening 18v. The engagement portion side surface 18z is located on the same plane as the front surface of the notch portion 18u and the opening 18v.

[0084] On the engagement portion side surface 18y, a threaded portion 18b is formed at the position where the opening 18v is formed in the left-right direction. On the engagement portion side surface 18y, a threaded portion 18b is formed at the center position in the left-right direction of the slider 18. On the engagement portion side surface 18z, a threaded portion 18b is formed at the position where the notch 18u is formed in the left-right direction. The threaded portion 18b formed on the engagement portion side surface 18y is composed of multiple threads (for example, 4 threads) arranged in the left-right direction. Each of the two threaded portions 18b formed on the engagement portion side surface 18z is composed of multiple threads (for example, 2 threads). The threaded portions 18b formed on the engagement portion sides 18y and 18z are formed in a rack shape.

[0085] As shown in Figure 10, the front-rear and up-down sides of the inner circumferential surface of the guide shaft engagement portion 18g1 are in contact with the guide shaft 50. Specifically, in the up-down direction, the lower surface of the upper side wall portion 18n1 and the upper surface of the lower side wall portion 18p1 are in contact with the guide shaft 50. In the front-rear direction, the guide surfaces 18q formed at both ends of the guide shaft engagement portion 18g1 in the left-right direction are in contact with the guide shaft 50. The guide surfaces 18q are planes perpendicular to the front-rear direction and are formed on both sides of the guide shaft 50 in the front-rear direction. In the left-right direction, the guide surfaces 18q are formed in a part of the guide shaft engagement portion 18g1 where the notch portion 18x1 is formed.

[0086] In this modified example, a guide portion 18t is formed by two guide surfaces 18q formed at the right end of the guide shaft engagement portion 18g1 to restrict the movement of the slider 18 in the front-rear direction, and a guide portion 18t is formed by two guide surfaces 18q formed at the left end of the guide shaft engagement portion 18g1 to restrict the movement of the slider 18 in the front-rear direction. In other words, guide portions 18t are formed at both the left and right ends of the guide shaft engagement portion 18g1 to restrict the movement of the slider 18 in the front-rear direction.

[0087] The vertical side surfaces of the inner circumferential surface of the guide shaft engagement portion 18g2 are in contact with the guide shaft 51. Specifically, the lower surface of the upper side wall portion 18n2 and the upper surface of the lower side wall portion 18p2 are in contact with the guide shaft 51. On the other hand, a gap is formed between the front-rear side surfaces of the inner circumferential surface of the guide shaft engagement portion 18g2 (i.e., the rear surface of the common side wall portion 18s2 and the front surface of the rear side wall portion 18k) and the guide shaft 51. In addition, a gap is formed between the vertical side surfaces of the inner circumferential surface of the screw engagement portion 18f (i.e., the lower surface of the upper side wall portion 18h and the upper surface of the lower side wall portion 18j) and the lead screw 14b.

[0088] In this modified example, guide shaft 50 is a first guide shaft for restricting the movement of the slider 18 in a direction perpendicular to the left-right direction, and guide shaft 51 is a second guide shaft for restricting the movement of the slider 18 in the rotational direction of the slider 18 around guide shaft 50. Furthermore, guide shaft engaging portion 18g1 is the first guide shaft engaging portion, and guide shaft engaging portion 18g2 is the second guide shaft engaging portion.

[0089] The threaded portions 18b formed at two locations on the side surface 18z of the engaging portion are positioned in the left-right direction between the guide portion 18t formed at the right end of the guide shaft engaging portion 18g1 and the guide portion 18t formed at the left end of the guide shaft engaging portion 18g1. In other words, the threaded portions 18b formed on the side surface 18z of the engaging portion are positioned inward in the left-right direction from the two guide portions 18t.

[0090] In this modified example, as in the configuration described above, it becomes possible to reduce the sliding resistance between the lead screw 14b and the screw engagement portion 18f, and the sliding resistance between the guide shafts 50, 51 and the slider 18 when the lead screw 14b rotates and the slider 18 moves in the left-right direction, and it also becomes possible to suppress the rattle of the slider 18 relative to the lead screw 14b and the guide shafts 50, 51. Therefore, it becomes possible to operate the slider 18 smoothly in the left-right direction.

[0091] Furthermore, in this modified example, power can be transmitted from the lead screw 14b to the slider 18 in a balanced manner across the entire range in the left-right direction, making it possible to operate the slider 18 more smoothly in the left-right direction. In addition, in this modified example, when manufacturing the slider 18, which is a resin molded product, it becomes possible to form the threaded portion 18b on the engagement portion sides 18y and 18z using a mold that is divided in the vertical direction, making it possible to manufacture the slider 18 more easily.

[0092] In this modified example, the motor 13 is equipped with two guide shafts 50 and 51 positioned on both sides of the lead screw 14b in the front-rear direction. Therefore, even if the gap between the lead screw 14b and the upper wall portion 18h, and the gap between the lead screw 14b and the lower wall portion 18j are widened, it becomes possible to suppress the rattle of the slider 18 caused by the rotation of the slider 18, which has the left-right direction as its axis of rotation, when the slider 18 moves in the left-right direction. Thus, it becomes possible to suppress the rattle of the slider 18 relative to the lead screw 14b while suppressing the generation of sliding noise when the slider 18 moves in the left-right direction, and as a result, the motor 13 can be made quieter.

[0093] In the above-described configuration, since the motor 13 is equipped with only one guide shaft 30, when the slider 18 moves in the left-right direction, the gap between the lead screw 14b and the upper wall portion 18h, and the gap between the lead screw 14b and the lower wall portion 18j must be narrowed to prevent the slider 18 from rotating around the guide shaft 30 and rattling relative to the lead screw 14b. Therefore, when the slider 18 moves in the left-right direction, the upper wall portion 18h and the lower wall portion 18j may come into contact with the lead screw 14b, potentially generating a sliding noise.

[0094] In this modified example, guide portions 18t are formed at both ends in the left-right direction of the guide shaft engagement portion 18g1, which has a longer left-right length than the left-right length of the guide shaft engagement portion 18g2, in order to restrict the movement of the slider 18 in the front-rear direction. Therefore, it becomes possible to widen the left-right distance between the two guide portions 18t. Consequently, it becomes possible to effectively suppress the front-rear rattle of the slider 18 relative to the guide shaft 50 when the slider 18 moves in the left-right direction.

[0095] In this modified example, the threaded portions 18b formed at two locations on the engagement portion side surface 18z are positioned inward in the left-right direction compared to the two guide portions 18t. Therefore, when the slider 18 moves in the left-right direction, the rattle of the slider 18 relative to the guide shaft 50 is less likely to be transmitted to the threaded portions 18b on the engagement portion side surface 18z. Consequently, it becomes possible to effectively suppress the rattle of the slider 18 relative to the lead screw 14b when the slider 18 moves in the left-right direction.

[0096] (Other embodiments) The embodiments and modifications described above are examples of preferred embodiments of the present invention, but are not limited thereto, and various modifications can be made without altering the essence of the invention.

[0097] In the above-described embodiments and modifications, the threaded portion 18b formed on the engagement portion side surface 18y may consist of a single thread. Furthermore, in the above-described embodiments and modifications, the threaded portion 18b may be formed on the engagement portion side surface 18y at the position where the notch portion 18u is formed in the left-right direction, and the threaded portion 18b may be formed on the engagement portion side surface 18z at the position where the opening 18v is formed in the left-right direction. Moreover, in the above-described embodiments and modifications, the threaded portion 18b may be formed only on the engagement portion side surface 18y or only on the engagement portion side surface 18z. For example, the threaded portion 18b may be formed only on the engagement portion side surface 18y.

[0098] In the above-described embodiments and modifications, instead of the threaded portion 18b formed on the engagement portion sides 18y and 18z, or in addition to the threaded portion 18b formed on the engagement portion sides 18y and 18z, a threaded portion 18b may be formed on at least one of the lower surface of the upper wall portion 18h and the upper surface of the lower wall portion 18j. Furthermore, in the above-described embodiments and modifications, the engagement portion side 18y may be positioned behind the rear surface of the notch portion 18u and the opening 18v. Also, the engagement portion side 18z may be positioned in front of the front surface of the notch portion 18u and the opening 18v.

[0099] In the above-described form and modification examples, a first opening similar to the opening 18v may be formed in the upper wall portion 18h, and a first notch similar to the notch portion 18u may be formed in the lower wall portion 18j. In this case, a second notch similar to the notches 18x, 18x1, 18x2 may be formed in the upper wall portions 18n, 18n1, 18n2, and a second opening similar to the openings 18w, 18w1, 18w2 may be formed in the lower wall portions 18p, 18p1, 18p2. In this case, the upper wall portion 18h is the second wall portion, the lower wall portion 18j is the first wall portion, the upper wall portions 18n, 18n1, 18n2 are the fourth wall portions, and the lower wall portions 18p, 18p1, 18p2 are the third wall portions. In this case, the upper side (Z1 direction side) is the fifth direction side, and the lower side (Z2 direction side) is the fourth direction side.

[0100] In the above-described configuration, the lead screw 14b and the guide shaft 30 may be offset vertically. In this case, the guide shaft 30 may be positioned behind the lead screw 14b. When the guide shaft 30 is positioned behind the lead screw 14b, the screw engagement portion 18f is positioned behind the guide shaft engagement portion 18g. Furthermore, in the above-described modified example, the guide shaft 50 and the guide shaft 51 may be offset vertically, and the guide shafts 50, 51 and the lead screw 14b may be offset vertically. Also, in the above-described configuration and modified example, the upper wall portions 18h, 18n, 18n1, and 18n2 may be formed in a curved plate shape that bulges upward, and the lower wall portions 18j, 18p, 18p1, and 18p2 may be formed in a curved plate shape that bulges downward.

[0101] In the above-described modification example, the threaded portion 18b formed on the side surface 18z of the engaging portion may be positioned at the same location as the guide portion 18t in the left-right direction. Also, in the above-described modification example, the length of the guide shaft engaging portion 18g1 in the left-right direction may be equal to the length of the guide shaft engaging portion 18g2. Furthermore, in the above-described modification example, the motor 13 may be equipped with two guide rails instead of the guide shaft 51 to restrict the movement of the slider 18 in the rotational direction of the slider 18 around the guide shaft 50. In this case, the two guide rails are positioned so that their longitudinal direction and left-right direction coincide. For example, one of the two guide rails is in contact with the upper surface of the upper wall portion 18n2, and the other guide rail is in contact with the lower surface of the lower wall portion 18p2.

[0102] In the above-described configuration, one end of the first link member 40, on which the output shaft 20 is formed at the other end, and the other end of the second link member 41, on which one end is rotatably connected to the slider 18, may be connected so as to be able to rotate relative to each other. Also, in the above-described configuration, the link member 19 may be composed of a single member. Furthermore, in the above-described configuration, the output shaft 20, which is formed separately from the first link member 40, may be fixed to the other end of the first link member 40.

[0103] In the above-described configuration and modifications, a portion of the rotating shaft 14 is the lead screw 14b, but the lead screw 14b may be a separate component from the rotating shaft 14 and fixed to the rotating shaft 14. Also, in the above-described configuration and modifications, the motor 13 may be a motor other than a stepping motor. Furthermore, in the above-described configuration and modifications, the rotating device 2 may rotate objects other than the wind direction adjustment fins 5 and 6. Also, in the above-described configuration and modifications, the motor 13 may be attached to and used in a device other than the rotating device 2.

[0104] (Configuration of this technology) Furthermore, this technology can be configured as follows: (1) A stator, a rotor having a lead screw, a slider having a threaded portion that engages with the lead screw and moves linearly in the axial direction of the lead screw when the lead screw rotates, and a guide shaft for guiding the slider in the axial direction of the lead screw, If we define the axial direction of the lead screw as the first direction, the direction perpendicular to the first direction as the second direction, the direction perpendicular to both the first and second directions as the third direction, one side of the second direction as the fourth direction side, and the other side of the second direction opposite to the fourth direction side as the fifth direction side, When viewed from the second direction, the lead screw and the guide shaft are arranged parallel to each other and aligned in the third direction. The slider comprises a screw engaging portion that engages with the lead screw and a guide shaft engaging portion that engages with the guide shaft. The screw engagement portion comprises a first wall portion on which the fourth-direction side surface of the screw engagement portion is formed, and a second wall portion on which the fifth-direction side surface of the screw engagement portion is formed. The guide shaft engagement portion comprises a third wall portion on which the fourth-direction side surface of the guide shaft engagement portion is formed, and a fourth wall portion on which the fifth-direction side surface of the guide shaft engagement portion is formed. A portion of the lead screw is positioned between the first wall and the second wall in the second direction. A portion of the guide shaft is positioned between the third wall and the fourth wall in the second direction. The first wall portion has a first notch formed therein, which is cut out from both ends of the first wall portion in the first direction toward the inside in the first direction and penetrates the first wall portion in the second direction. The second wall portion has a first opening formed at an intermediate position in the first direction, which penetrates the second wall portion in the second direction. The third wall portion has a second opening formed at an intermediate position of the third wall portion in the first direction, which penetrates the third wall portion in the second direction. A motor characterized in that the fourth wall portion has a second notch formed therein, which is cut out from both ends of the fourth wall portion in the first direction toward the inside in the first direction and penetrates the fourth wall portion in the second direction. (2) The screw engagement portion has two engagement portion sides that are arranged on both sides of the lead screw in the third direction, The motor according to (1), characterized in that the screw portion is formed on at least one of the two engagement portion sides. (3) On one of the two engagement portion sides, the threaded portion is formed at the position where the first opening is formed in the first direction. The motor according to (2), characterized in that the screw portion is formed on the other side surface of the engaging portion at the position where the first notch is formed in the first direction. (4) The motor according to (2) or (3), characterized in that it comprises only one of the guide shafts. (5) The system comprises two guide shafts positioned on both sides of the lead screw in the third direction when viewed from the second direction, The motor according to (2) or (3), characterized in that the slider comprises two guide shaft engaging portions arranged on both sides of the screw engaging portion in the third direction. (6) One of the two guide shafts is a first guide shaft for restricting the movement of the slider in a direction perpendicular to the first direction, and the other guide shaft is a second guide shaft for restricting the movement of the slider in the rotational direction of the slider about the first guide shaft. If the guide shaft engaging portion that engages with the first guide shaft is designated as the first guide shaft engaging portion, and the guide shaft engaging portion that engages with the second guide shaft is designated as the second guide shaft engaging portion, The length of the first guide shaft engagement portion in the first direction is longer than the length of the second guide shaft engagement portion in the first direction. Guide portions are formed at both ends of the first guide shaft engagement portion in the first direction for restricting the movement of the slider in the third direction. On the side surface of the engagement portion located on the side of the second guide shaft engagement portion, the threaded portion is formed at the position where the first opening is formed in the first direction. The motor according to (5), characterized in that, on the side surface of the engagement portion located on the side of the first guide shaft engagement portion, the screw portion is formed at a position in the first direction where the first notch portion is formed, and is located inward in the first direction from the two guide portions. (7) A rotating device for rotating a predetermined object to be rotated, The motor comprises one of the motors described in (1) to (6), a link member whose one end is rotatably connected to the slider, and an output shaft formed on or fixed to the other end of the link member and into which the engaging portion of the object to be rotated engages. If we define one side of the third direction as the sixth direction side, and the other side of the third direction opposite to the sixth direction side as the seventh direction side, The axial direction of the output shaft is parallel to the second direction. One end of the link member is rotatable with respect to the slider, with the second direction as the axis of rotation. The rotating device is characterized in that the output shaft is positioned on the sixth direction side of the slider. (8) The motor is provided with only one guide shaft that is located on the seventh direction side of the lead screw when viewed from the second direction, The screw engagement portion is positioned on the sixth direction side of the guide shaft engagement portion. The screw engagement portion has two engagement portion sides formed on both sides of the lead screw in the third direction. One end of the link member is connected to the slider on the sixth direction side of the screw engagement portion, On the side surface of the engagement portion in the sixth direction, the threaded portion is formed at the position where the first opening is formed in the first direction. The rotating device according to (7), characterized in that the screw portion is formed on the side surface of the engagement portion on the seventh direction side at the position where the first notch portion is formed in the first direction. (9) The motor comprises two guide shafts positioned on both sides of the lead screw in the third direction when viewed from the second direction, The slider comprises two guide shaft engaging portions arranged on both sides of the screw engaging portion in the third direction, The screw engagement portion has two engagement portion sides formed on both sides of the lead screw in the third direction. One end of the link member is connected to the slider on the sixth direction side of the guide shaft engagement portion, which is located on the sixth direction side of the screw engagement portion. On the side surface of the engagement portion in the sixth direction, the threaded portion is formed at the position where the first opening is formed in the first direction. The rotating device according to (7), characterized in that the screw portion is formed on the side surface of the engagement portion on the seventh direction side at the position where the first notch portion is formed in the first direction. (10) The rotating device according to any one of (7) to (9), characterized in that the object to be rotated is a fin for adjusting the air direction installed in an air outlet for a vehicle.

[0105] In this technology, for example, the screw engagement portion has two engagement portion sides formed on both sides of the lead screw in the third direction, and the threaded portion is formed on at least one of the two engagement portion sides.

[0106] In this technology, it is preferable that a threaded portion is formed on one of the two engagement portion sides at the position where the first opening is formed in the first direction, and a threaded portion is formed on the other engagement portion side at the position where the first notch is formed in the first direction. With this configuration, it becomes possible to transmit power from the lead screw to the slider in a balanced manner over the entire range of the slider in the first direction. Therefore, it becomes possible to operate the slider more smoothly in the axial direction of the lead screw. Furthermore, with this configuration, for example, if the slider is a resin molded product, it becomes possible to form the threaded portion on the engagement portion side using a mold that is divided in the second direction. Therefore, it becomes possible to manufacture the slider easily.

[0107] In this technology, for example, the motor has only one guide shaft. In this case, the motor configuration can be simplified. On the other hand, when the motor has only one guide shaft, when the slider moves axially with respect to the lead screw, the gap between the lead screw and the first wall, and the gap between the lead screw and the second wall must be narrowed in order to prevent the slider from rattling relative to the lead screw by rotating around the guide shaft (i.e., the slider rotates with the first direction as the axis of rotation). However, if the gap between the lead screw and the first wall, and the gap between the lead screw and the second wall are narrowed, the first wall and the second wall may come into contact with the lead screw when the slider moves axially with respect to the lead screw, potentially generating a sliding noise.

[0108] Therefore, in this technology, it is preferable that the motor has two guide shafts positioned on both sides of the lead screw in the third direction when viewed from the second direction, and the slider has two guide shaft engagement parts positioned on both sides of the screw engagement part in the third direction. With this configuration, even if the gap between the lead screw and the first wall and the gap between the lead screw and the second wall are widened, it is possible to suppress the rattle of the slider relative to the lead screw caused by the rotation of the slider with the first direction as the axis of rotation when the slider moves in the axial direction of the lead screw. Thus, it is possible to suppress the rattle of the slider relative to the lead screw while suppressing the generation of sliding noise when the slider moves in the axial direction of the lead screw, and as a result, it is possible to make the motor quieter.

[0109] In this technology, one of the two guide shafts is a first guide shaft for restricting the movement of the slider in a direction perpendicular to the first direction, and the other guide shaft is a second guide shaft for restricting the movement of the slider in the rotational direction of the slider around the first guide shaft. The guide shaft engaging portion that engages with the first guide shaft is called the first guide shaft engaging portion, and the guide shaft engaging portion that engages with the second guide shaft is called the second guide shaft engaging portion. The length of the first guide shaft engaging portion in the first direction is longer than the length of the second guide shaft engaging portion in the first direction. Guide portions are formed at both ends of the first guide shaft engaging portion in the first direction for restricting the movement of the slider in the third direction. On the side surface of the engaging portion located on the side of the second guide shaft engaging portion, a threaded portion is formed at the position where the first opening is formed in the first direction. On the side surface of the engaging portion located on the side of the first guide shaft engaging portion, it is preferable that the threaded portion is formed at the position where the first notch is formed in the first direction, and further inward in the first direction than the two guide portions.

[0110] With this configuration, the length of the first guide shaft engagement portion in the first direction is longer than the length of the second guide shaft engagement portion in the first direction. Guide portions are formed at both ends of the first guide shaft engagement portion in the first direction to restrict the movement of the slider in the third direction, making it possible to widen the spacing between the guide portions in the first direction. Therefore, it becomes possible to effectively suppress the rattle of the slider in the third direction relative to the first guide shaft when the slider moves axially with respect to the lead screw.

[0111] Furthermore, with this configuration, the threaded portion is formed on the side of the engagement portion located on the side of the first guide shaft engagement portion, in the first direction, further inward than the two guide portions. As a result, when the slider moves axially with respect to the first guide shaft, the rattle of the slider in the third direction is less likely to be transmitted to the threaded portion. Therefore, it becomes possible to effectively suppress the rattle of the slider relative to the lead screw when the slider moves axially with respect to the lead screw.

[0112] In this technology, for example, the motor has only one guide shaft located on the seventh direction side of the lead screw when viewed from the second direction, the screw engagement portion is located on the sixth direction side of the guide shaft engagement portion, the screw engagement portion has two engagement portion sides formed on both sides of the lead screw in the third direction, one end of the link member is connected to the slider on the sixth direction side of the screw engagement portion, a threaded portion is formed on the engagement portion side on the sixth direction side at the position where the first opening is formed in the first direction, and a threaded portion is formed on the engagement portion side on the seventh direction side at the position where the first notch is formed in the first direction.

[0113] Furthermore, in this technology, for example, the motor has two guide shafts arranged on both sides of the lead screw in the third direction when viewed from the second direction, and the slider has two guide shaft engagement portions arranged on both sides of the screw engagement portion in the third direction, and the screw engagement portion has two engagement portion sides arranged on both sides of the lead screw in the third direction, and one end of the link member is connected to the slider on the sixth direction side of the guide shaft engagement portion arranged on the sixth direction side of the screw engagement portion, and on the engagement portion side on the sixth direction side a threaded portion may be formed at the position where the first opening is formed in the first direction, and on the engagement portion side on the seventh direction side a threaded portion may be formed at the position where the first notch is formed in the first direction.

[0114] In these cases, power can be transmitted from the lead screw to the slider in a balanced manner across the entire range of the slider in the first direction, allowing the slider to operate more smoothly in the axial direction of the lead screw. Furthermore, in these cases, for example, if the slider is a resin molded product, it becomes possible to form a threaded portion on the side of the engaging part using a mold that is divided in the second direction. Therefore, the slider can be manufactured more easily.

[0115] In this technology, for example, the object to be rotated is a fin used to adjust the airflow direction, which is installed in the air outlet of a vehicle. [Explanation of Symbols]

[0116] 2 Rotating mechanism 4. Air outlet section 5, 6 Fins (Rotating object) 10. Rotating shaft (engaging part) 13 Motors 14b Lead Screw 15 rotors 16 staters 18 Slider 18b Screw part 18f Screw engagement section 18g Guide shaft engagement part 18g1 Guide shaft engagement part (first guide shaft engagement part) 18g2 Guide shaft engagement part (second guide shaft engagement part) 18h Upper wall section (first wall section) 18j Lower wall (2nd wall) 18n, 18n1, 18n2 Upper wall section (third wall section) 18p, 18p1, 18p2 Lower wall (4th wall) 18t Guide section 18u notch (1st notch) 18v opening (1st opening) 18w, 18w1, 18w2 opening (second opening) 18x, 18x1, 18x2 notch (second notch) 18y Side view of the engagement portion (side view of the engagement portion on the 6th direction side) 18z Side of the engaging portion (side of the engaging portion on the 7th direction side) 19 Link members 20 Output shaft 30 Guide axis 50 Guide axis (first guide axis) 51 Guide axis (second guide axis) X 3rd direction X1 The other side of the third direction, the seventh direction X2 One side of the third direction, side of the sixth direction Y Lead screw axial direction, first direction Z 2nd direction Z1 One side of the second direction, the fourth direction Z2 The other side of the second direction, the fifth direction

Claims

1. The system comprises a stator, a rotor having a lead screw, a slider having a threaded portion that engages with the lead screw and moves linearly in the axial direction of the lead screw when the lead screw rotates, and a guide shaft for guiding the slider in the axial direction of the lead screw. If we define the axial direction of the lead screw as the first direction, the direction perpendicular to the first direction as the second direction, the direction perpendicular to both the first and second directions as the third direction, one side of the second direction as the fourth direction side, and the other side of the second direction opposite to the fourth direction side as the fifth direction side, When viewed from the second direction, the lead screw and the guide shaft are arranged parallel to each other and aligned in the third direction. The slider comprises a screw engaging portion that engages with the lead screw and a guide shaft engaging portion that engages with the guide shaft. The screw engagement portion comprises a first wall portion on which the fourth-direction side surface of the screw engagement portion is formed, and a second wall portion on which the fifth-direction side surface of the screw engagement portion is formed. The guide shaft engagement portion comprises a third wall portion on which the fourth-direction side surface of the guide shaft engagement portion is formed, and a fourth wall portion on which the fifth-direction side surface of the guide shaft engagement portion is formed. A portion of the lead screw is positioned between the first wall and the second wall in the second direction. A portion of the guide shaft is positioned between the third wall and the fourth wall in the second direction. The first wall portion has a first notch formed therein, which is cut out from both ends of the first wall portion in the first direction toward the inside in the first direction and penetrates the first wall portion in the second direction. The second wall portion has a first opening formed at an intermediate position of the second wall portion in the first direction, which penetrates the second wall portion in the second direction. The third wall portion has a second opening that penetrates the third wall portion in the second direction at an intermediate position in the first direction. A motor characterized in that the fourth wall portion has a second notch formed therein, which is cut out from both ends of the fourth wall portion in the first direction toward the inside in the first direction and penetrates the fourth wall portion in the second direction.

2. The screw engagement portion has two engagement portion sides formed on both sides of the lead screw in the third direction. The motor according to claim 1, characterized in that the screw portion is formed on at least one of the two engagement portion sides.

3. On one of the two engagement portion sides, the threaded portion is formed at the position where the first opening is formed in the first direction. The motor according to claim 2, characterized in that the screw portion is formed on the other side surface of the engaging portion at the position where the first notch is formed in the first direction.

4. The motor according to claim 2 or 3, characterized in that it comprises only one of the aforementioned guide shafts.

5. The system comprises two guide shafts positioned on both sides of the lead screw in the third direction when viewed from the second direction, The motor according to claim 2 or 3, characterized in that the slider comprises two guide shaft engagement portions arranged on both sides of the screw engagement portion in the third direction.

6. One of the two guide shafts is a first guide shaft for restricting the movement of the slider in a direction perpendicular to the first direction, and the other guide shaft is a second guide shaft for restricting the movement of the slider in the rotational direction of the slider around the first guide shaft. If the guide shaft engaging portion that engages with the first guide shaft is designated as the first guide shaft engaging portion, and the guide shaft engaging portion that engages with the second guide shaft is designated as the second guide shaft engaging portion, The length of the first guide shaft engagement portion in the first direction is longer than the length of the second guide shaft engagement portion in the first direction. Guide portions are formed at both ends of the first guide shaft engagement portion in the first direction for restricting the movement of the slider in the third direction. On the side surface of the engagement portion located on the side of the second guide shaft engagement portion, the threaded portion is formed at the position where the first opening is formed in the first direction. The motor according to claim 5, characterized in that, on the side surface of the engagement portion located on the side of the first guide shaft engagement portion, the screw portion is formed at a position where the first notch is formed in the first direction, and is located inward in the first direction from the two guide portions.

7. A rotating device for rotating a predetermined object to be rotated, A motor according to any one of claims 1 to 3, a link member whose one end is rotatably connected to the slider, and an output shaft formed or fixed to the other end of the link member and into which the engaging portion of the object to be rotated engages, If one side of the third direction is designated as the sixth direction side, and the other side of the third direction opposite to the sixth direction side is designated as the seventh direction side, The axial direction of the output shaft is parallel to the second direction. One end of the link member is rotatable with respect to the slider, with the second direction as the axis of rotation. The rotating device is characterized in that the output shaft is positioned on the sixth direction side of the slider.

8. The motor is equipped with only one guide shaft, which is positioned on the seventh direction side of the lead screw when viewed from the second direction. The screw engagement portion is positioned on the sixth direction side of the guide shaft engagement portion. The screw engagement portion has two engagement portion sides formed on both sides of the lead screw in the third direction. One end of the link member is connected to the slider on the sixth direction side of the screw engagement portion, On the side surface of the engagement portion in the sixth direction, the threaded portion is formed at the position where the first opening is formed in the first direction. The rotating device according to claim 7, characterized in that the screw portion is formed on the side surface of the engaging portion on the seventh direction side at the position where the first notch portion is formed in the first direction.

9. The motor comprises two guide shafts positioned on both sides of the lead screw in the third direction when viewed from the second direction, The slider comprises two guide shaft engaging portions arranged on both sides of the screw engaging portion in the third direction, The screw engagement portion has two engagement portion sides formed on both sides of the lead screw in the third direction. One end of the link member is connected to the slider on the sixth direction side of the guide shaft engagement portion, which is located on the sixth direction side of the screw engagement portion. On the side surface of the engagement portion in the sixth direction, the threaded portion is formed at the position where the first opening is formed in the first direction. The rotating device according to claim 7, characterized in that the screw portion is formed on the side surface of the engaging portion on the seventh direction side at the position where the first notch portion is formed in the first direction.

10. The rotating device according to claim 7, characterized in that the object to be rotated is a fin for adjusting the air direction installed in an air outlet for a vehicle.

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