JP5203904B2 - Actuator and vehicle lamp device - Google Patents

Description

  The present invention relates to an actuator for changing an irradiation direction of a lamp to an arbitrary direction, and a vehicle lamp device including the actuator.

2. Description of the Related Art Conventionally, there is a vehicle lamp device that adjusts the direction of light by tilting a lamp by driving an actuator in accordance with the traveling state of the vehicle. For example, in the vehicular lamp device described in Patent Document 1, the upper end of the lamp is suspended and supported in a state in which it can tilt up and down and left and right with respect to a bracket fixed to the vehicle. The actuator disposed below the lamp includes an output shaft that is supported so as to be slidable in the front-rear direction of the vehicle with respect to the case and rotated about its own central axis. The output shaft extends in the vertical direction, and its tip projects from the case. Furthermore, the lower end of the lamp is connected to the tip of the output shaft that protrudes outside the case. In this vehicular lamp device, when the output shaft is slid in the front-rear direction with respect to the case by the driving force of the motor housed in the actuator, the lamp is tilted in the up-down direction and the light irradiated by the lamp The direction of changes along the vertical direction. On the other hand, when the output shaft is rotated by the driving force of the motor accommodated in the actuator, the lamp is rotated in the left-right direction, and the direction of light emitted from the lamp changes along the horizontal direction.
JP 2008-94196 A

  However, in the vehicle lamp device described in Patent Document 1, the tip of the output shaft protrudes outside the case, and the lower end of the lamp is connected to the tip of the protruding output shaft. The lamp load acts on the tip of the output shaft. Accordingly, the output shaft is easily inclined with respect to the case. When the output shaft is tilted, the direction of light emitted from the lamp may deviate from a desired direction.

  The present invention has been made in view of such circumstances, and an object thereof is to provide an actuator and a vehicle lamp device that can suppress the inclination of an output shaft.

In order to solve the above-mentioned problem, the invention according to claim 1 is capable of linearly sliding in the first direction on the slide surface with respect to a case having a slide surface parallel to the first direction. An actuator having an output shaft that is supported and whose shaft center is orthogonal to the first direction, and is capable of sliding the output shaft in the first direction, the output shaft being a slide drive of the output shaft comprising a shaft connecting portion serving as a working point with respect to the actuating shaft is connected and the object to be operated shaft is tilted along with, the acting point, the sliding of the anti-tip side from the central portion in the axial direction of the output shaft Its gist is that it is located on the surface side.

  According to this configuration, the driven shaft tilted with the slide drive of the output shaft in the first direction is relative to the output shaft from the center portion in the axial direction of the output shaft, that is, on the slide surface side of the case. The output shaft is connected from the axial center to the base end side of the output shaft. Accordingly, the load from the actuated shaft acts on the output shaft on the base end side below the distal end portion of the output shaft. Therefore, the inclination of the output shaft can be suppressed.

  According to a second aspect of the present invention, the actuator according to the first aspect is fixed to the case, and the first drive source for slidingly driving the output shaft in the first direction; and the first The first driving source and the output shaft are drivingly connected to each other, and are slid in the first direction by the driving force of the first driving source to move the output shaft to the first. And at least one linear drive shaft that is slid in the direction of the output shaft, as seen from the axial center direction of the output shaft, along with the center axis of the linear drive shaft and the slide movement of the output shaft on the operated shaft The gist is that the tilt center line that is the tilt center in tilting is orthogonal.

  According to this configuration, the force for sliding the output shaft by the linear drive shaft in the first direction acts so as to be orthogonal to the straight line passing through the axis center of the output shaft to slide the output shaft. The tilting center of the actuated shaft that is tilted in accordance with the slide movement passes through the axis center of the output shaft. Therefore, since the force for sliding the output shaft in the first direction with respect to the output shaft from the linear drive shaft is favorably applied, the output shaft is more difficult to tilt.

  According to a third aspect of the present invention, in the actuator according to the second aspect, the linear drive shaft is provided, and the central axis of the linear drive shaft and the tilt center line are orthogonal to each other in one plane. Is the gist.

  According to this configuration, the linear drive shaft acts on the connecting portion between the output shaft and the actuated shaft to slide the output shaft. Therefore, it is further suppressed that the output shaft is inclined during the sliding movement of the output shaft.

  According to a fourth aspect of the present invention, in the actuator according to any one of the first to third aspects, the shaft coupling portion is recessed from the tip of the output shaft along the center of the shaft. The gist is that the driven shaft is inserted and connected.

  According to this configuration, the driven shaft tilted with the slide drive of the output shaft in the first direction is inserted into the shaft connecting portion formed on the output shaft, and the connection between the driven shaft and the output shaft is This is done at the proximal end of the output shaft in the shaft coupling portion. Accordingly, the load from the actuated shaft acts on the output shaft on the base end side below the distal end portion of the output shaft. Therefore, the inclination of the output shaft can be suppressed. In addition, the driven shaft can be connected to the output shaft with a simple configuration by simply inserting the driven shaft from the tip of the output shaft into the shaft connecting portion that is recessed along the shaft center of the output shaft. In addition, the inclination of the output shaft can be suppressed. In the present invention, the “recessed” includes not only the case of forming a hole-like recess, but also the case of forming a through hole.

  A fifth aspect of the invention is the actuator according to the fourth aspect, wherein the shaft coupling portion is formed such that a portion on the opening side opened to the tip end surface of the output shaft is formed large. .

According to this configuration, the driven shaft is smoothly tilted with respect to the output shaft within the shaft connecting portion as the output shaft slides along the first direction.
According to a sixth aspect of the present invention, in the actuator according to the fourth or fifth aspect, the case is formed with an insertion hole for inserting the driven shaft into the shaft coupling portion from the outside of the case. The front end surface of the output shaft is disposed in the case close to the inner side surface of the case, and at least a part of the front end surface is covered with a peripheral edge portion of the insertion hole in the case. The gist of this is.

According to this configuration, when the output shaft is about to tilt, the tip end surface of the output shaft comes into contact with the inner surface of the case, thereby preventing further tilting of the output shaft.
According to a seventh aspect of the present invention, in the actuator according to any one of the first to third aspects, the shaft coupling portion is formed from the axial center of the output shaft on the outer peripheral surface of the output shaft. The gist of the present invention is that the driven shaft is connected by the driven shaft being extrapolated to the output shaft and contacting the shaft connecting portion.

  According to this configuration, the driven shaft that is tilted with the slide drive of the output shaft in the first direction is connected to the output shaft by being extrapolated to the output shaft and contacting the shaft connecting portion. Since the shaft connecting portion is provided on the slide surface side from the axial center of the output shaft of the output shaft, the load from the actuated shaft is lower than the distal end of the output shaft. Will act on the output shaft on the side. Therefore, the inclination of the output shaft can be suppressed. In addition, it is possible to connect the driven shaft to the output shaft with a simple configuration in which the driven shaft is extrapolated to the output shaft, and to suppress the inclination of the output shaft.

  The gist of the invention according to claim 8 is that, in the actuator according to claim 7, the output shaft is formed so as to become narrower from the base end to the tip end of the output shaft. .

According to this configuration, the operated shaft is smoothly tilted with respect to the output shaft on the outer periphery of the output shaft as the output shaft slides along the first direction.
According to a ninth aspect of the present invention, in the actuator according to any one of the first to eighth aspects, the output shaft can be slid in the first direction, and the output shaft can be output. Its gist is that it can be driven to rotate about the axis center of the shaft.

  According to this configuration, the driven shaft can be slid in the first direction as the output shaft slides, and the driven shaft can be rotated as the output shaft rotates. Become.

  A tenth aspect of the present invention is the actuator according to the ninth aspect, wherein the actuator is fixed to the case and is drivingly connected to the output shaft to slide the output shaft in the first direction. A first drive source, and a second drive source that is drivingly connected to the output shaft and rotationally drives the output shaft via a slide allowable connecting mechanism that allows the output shaft to slide in the first direction. The gist is that

  According to this configuration, the output shaft is slid in the first direction by the first drive source. Further, since the second drive source is drivingly connected to the output shaft via a slide allowable connecting mechanism that allows the output shaft to slide in the first direction, the output shaft can be slid in the first direction. The output shaft is rotationally driven by the second drive source. In this case, the control for sliding the output shaft in the first direction is the control of only the first drive source, and the control for rotating the output shaft is the control of only the second drive source. Therefore, each control can be performed easily and reliably.

  According to an eleventh aspect of the present invention, in the actuator according to the tenth aspect, the slide allowable coupling mechanism is provided so as not to move in the first direction, and rotates in accordance with the rotational force of the second drive source. A drive-side rotator, and a drive-side rotator that is provided so that its shaft center coincides with the drive-side rotator, and is provided so as to be movable in the first direction integrally with the output shaft along the rotation axis direction. An output-side rotator that rotates the output shaft in accordance with the rotation of the drive-side rotator, and the drive-side rotator and the output so that the drive-side rotator and the output-side rotator are engaged together in a rotational direction. And a slide allowable shaft that is inserted through the shaft center of the side rotating body and is slidably movable in at least one of the drive side rotating body and the output side rotating body in the direction of the rotation axis. It is the gist.

  According to this configuration, since the slide allowable shaft is slidable relative to at least one of the drive side rotator and the output side rotator, the output shaft is allowed to slide in the first direction together with the output side rotator. The Further, since the slide allowable shaft engages in the rotational direction so as to rotate the drive side rotary body and the output side rotary body integrally, even if the output shaft slides in the first direction, Power can be transmitted to the rotating body, and the output shaft can be rotationally driven by the second drive source. Thus, the effect of the invention of claim 4 can be specifically obtained with a simple configuration.

  According to a twelfth aspect of the present invention, the actuator according to any one of the first to eleventh aspects and the vehicle are supported so as to be rotatable with respect to the vehicle, and a lower end portion of the actuator is coupled to the shaft coupling portion. The driven shaft, and the direction of the light to be irradiated is changed along the vertical direction by the tilt of the driven shaft accompanying the sliding movement of the output shaft in the first direction. Alternatively, the direction of the light to be irradiated changes along the vertical direction due to the tilt of the driven shaft accompanying the slide movement of the output shaft in the first direction, and the rotation of the driven shaft accompanying the rotation of the output shaft The gist of the present invention is to provide a vehicular lamp device including a lamp in which the direction of light to be irradiated changes along the horizontal direction.

  According to this configuration, the driven shaft to which the lamp is fixed is connected to the output shaft at the shaft connecting portion provided on the slide surface side with respect to the axial center of the output shaft. hard. Accordingly, the direction of the light emitted from the lamp is prevented from deviating from a desired direction due to the inclination of the output shaft.

  ADVANTAGE OF THE INVENTION According to this invention, the actuator and vehicle lamp device which can suppress the inclination of an output shaft can be provided.

(First embodiment)
A first embodiment of the present invention will be described below with reference to the drawings.
As shown in FIGS. 2A and 2B, the vehicle lamp device includes an actuator 1 fixed to the vehicle and a lamp 2 supported to the vehicle. 2A is a schematic view of the vehicular lamp device provided in the vehicle as viewed from the side in the horizontal direction (left side with respect to the traveling direction of the vehicle), and FIG. It is the schematic diagram which looked at the lamp device for vehicles from the upper part.

  The actuator 1 is supported so as to be slidable linearly in a first direction A (in the longitudinal direction of the vehicle in the present embodiment) with respect to a case 11 fixed to a bracket 3 fixed to the vehicle, and the first. An output shaft 61 that is rotatable about a central axis L1 (axial center) orthogonal to the direction A is provided. The lamp 2 is fixed to a lamp shaft 4 that penetrates the lamp 2 and extends in the vertical direction, and a spherical supported portion 4 a is provided at the upper end of the lamp shaft 4. And the bearing 5 which has the spherical recessed part which supports the to-be-supported part 4a is fixed to the upper part of the said bracket 3, and the to-be-supported part 4a is arrange | positioned in the bearing 5 for the said lamp shaft 4. Is supported by the bearing 5 so as to be rotatable. The lower end of the lamp shaft 4 in the vertical direction is connected to the output shaft 61. In the lamp 2, the direction of light emitted by the slide movement of the output shaft 61 in the first direction A changes along the vertical direction B, while the direction of light emitted by the rotation of the output shaft 61 changes in the horizontal direction C. It changes along (the left-right direction with respect to the traveling direction of the vehicle).

  As shown in FIGS. 1, 3, and 4, the actuator 1 is configured by housing a plurality of components in a box-shaped case 11. The case 11 includes an upper case 12, an intermediate case 13, and a lower case 14 that are divided into three vertically. Locking claws 12a extending toward the lower case 14 are formed at a plurality of positions on the peripheral edge of the upper case 12, and protruding outwardly at a plurality of positions corresponding to the locking claws 12a on the peripheral edge of the lower case 14. The protruding locking portion 14a is formed. Then, the upper case and the lower case 14 are integrated by snap-fitting the locking claw 12a to the locking portion 14a with the intermediate case 13 sandwiched therebetween. 1 is a perspective view of the actuator 1 with the upper case 12 and the intermediate case 13 removed, and FIG. 4 is a plan view of the actuator 1 with the upper case 12 removed.

  A slide member 21 is disposed at a substantially central portion in the intermediate case 13 having a substantially rectangular box shape (in the recess on the upper case 12 side in the intermediate case 13). The slide member 21 includes a box-shaped slide main body 22 and a cover 23 that substantially closes the opening of the slide main body 22. A pair of slide grooves 13 a extending along the first direction A and parallel to each other are formed on the bottom surface (slide surface) of the intermediate case 13, and at the bottom of the slide main body portion 22, the slide grooves are formed. A pair of engaging projections 21a (see FIG. 1) that are slidably engaged along the first direction A are formed protrudingly on 13a. The slide member 21 is linearly slidable relative to the intermediate case 13 along the first direction A by being guided by the slide groove 13a by arranging the pair of engaging protrusions 21a in the slide groove 13a. It is. Further, an output shaft 61 to be described later is disposed in the slide main body 22 so as to be orthogonal to the first direction A and extend in the vertical direction.

  A first motor 31 serving as a drive source for sliding the slide member 21 along the first direction is disposed in the intermediate case 13. The first motor 31 is disposed on the opposite side of the slide groove 13 a around the slide member 21, and the rotation shaft 31 a extends parallel to the central axis L <b> 1 (axis center) of the output shaft 61. And the flat gear 32 is being fixed to the front-end | tip part of the rotating shaft 31a so that integral rotation is possible.

  A first reduction gear 33 is disposed on the side of the first motor 31. The first reduction gear 33 extends on the side of the first motor 31 in parallel with the central axis L1 of the output shaft 61 and the rotation shaft 31a of the first motor 31, and both ends thereof are connected to the upper case 12 and the intermediate case 13. It is supported by a fixed columnar first support shaft 34. The first reduction gear 33 is integrated with a large-diameter gear 33a that meshes with the spur gear 32, and protrudes downward (from the bottom side of the intermediate case 13) from the radial center of the large-diameter gear 33a. And a first screw gear 33b formed in the above. An annular thrust receiving member 35 that is fitted around the first support shaft 34 and receives thrust is provided on both sides in the axial direction of the first reduction gear 33. FIG. 3 shows only one thrust receiving member 35 disposed between the large-diameter gear 33 a and the upper case 12.

  Further, as shown in FIG. 5, in the intermediate case 13, at the side of the first reduction gear 33 and at a position where the first reduction gear 33 is interposed between the first motor 31 and the intermediate case 13. A linear drive member 36 is disposed. The linear drive member 36 has a cylindrical drive main body 36 a and a screw tooth shape that is provided on the outer periphery of the drive main body 36 a and meshes with a first screw gear 33 b (see FIG. 3) of the first reduction gear 33. The second screw gear 36b is integrally formed. Screw teeth (not shown) are formed on the inner peripheral surface of the drive main body 36a, and the second screw gear 36b is formed in a cylindrical shape at the center in the axial direction of the drive main body 36a. The length in the direction is shorter than the length in the axial direction of the drive main body 36a.

  The linear drive member 36 is supported by a pair of support members 13c erected on the bottom of the intermediate case 13 so that the central axis L2 is parallel to the first direction A and is orthogonal to the central axis L2 of the output shaft 61. Both ends in the axial direction of the drive main body 36a are supported. The pair of support members 13c support the linear drive member 36 so as to be rotatable about the central axis L2 of the linear drive member 36, and abut against the axial end surface of the second screw gear 36b, respectively. Is restricted from moving in the axial direction. An accommodation recess 13b is provided between the pair of support members 13c so that the intermediate case 13 and the second screw gear 36b are not in contact with each other.

  The intermediate case 13 is formed with two pairs of restricting members 13d that sandwich both axial ends of the drive main body 36a from both radial sides. Each regulating member 13d extends in parallel with the central axis L1 of the output shaft 61, and each regulating member 13d that makes a pair is linearly brought into contact with the axial end of the drive main body 36a from both sides in the radial direction. The movement of the drive member 36 in the radial direction is restricted.

  A rod-like linear drive shaft 37 is disposed inside the linear drive member 36. Screw teeth 37a are formed on the outer peripheral surface of the linear drive shaft 37. The linear drive shaft 37 is a straight line in a state where the screw teeth 37a are screwed onto the screw teeth formed on the inner peripheral surface of the drive main body 36a. It is disposed inside the drive member 36. The linear drive shaft 37 is disposed inside the linear drive member 36 so that the central axis L3 thereof is parallel to the first direction A, and the linear drive member 36, the first reduction gear 33, and the flat drive shaft 37 are parallel to each other. The gear 32 is drivingly connected to the first motor 31. Further, the tip end portion (the end portion on the slide member 21 side) of the linear drive shaft 37 is connected and fixed to a fixing portion 22a formed to protrude from the side wall of the slide main body portion 22 toward the linear drive shaft 37 side. Thus, the slide body 22 can be slid integrally with the linear drive shaft 37, and rotation of the linear drive shaft 37 around the central axis L3 is prevented. When the linear drive member 36 is rotated, the linear drive shaft 37 is linearly slid along the first direction A, and at the same time, the slide member 21 together with the linear drive shaft 37 is moved in the first direction A. It is slid linearly along. That is, the linear drive shaft 37 is drivingly connected to the slide member 21 that slides integrally with the output shaft 61.

  Further, as shown in FIG. 1, in the intermediate case 13, the output shaft 61 is rotated around the central axis L <b> 1 at a position where the linear drive member 36 is interposed between the intermediate motor 13 and the first motor 31. A second motor 41 serving as a drive source is disposed. The second motor 41 is arranged such that its rotation shaft 41a is parallel to the central axis L1 of the output shaft 61, and a flat gear 42 is fixed to the tip of the rotation shaft 41a so as to be integrally rotatable. Yes.

  A second reduction gear 43 is arranged between the second motor 41 and the linear drive member 36. The second reduction gear 43 extends in parallel with the central axis L1 of the output shaft 61 and the rotation shaft 41a of the second motor 41 on the side of the second motor 41, and both ends thereof are connected to the upper case 12 and the intermediate case 13. It is supported by a fixed cylindrical second support shaft 44 (see FIG. 5). The second reduction gear 43 is integrated with a large-diameter gear 43a that meshes with the spur gear 42, and protrudes downward (from the bottom side of the intermediate case 13) from the radial center of the large-diameter gear 43a. And a worm 43b (see FIG. 3) formed in the above. An annular thrust receiving member 45 that is fitted around the first support shaft 34 and receives thrust is provided on both sides in the axial direction of the second reduction gear 43. FIG. 3 shows only one thrust receiving member 45 disposed between the large-diameter gear 43 a and the upper case 12.

  Further, as shown in FIG. 5, in the intermediate case 13, the second reduction gear 43 is interposed between the second reduction gear 43 and the second motor 41. A worm wheel 46 is disposed as a slide allowing member. The worm wheel 46 has a cylindrical shape, and a tooth portion 46a with which the worm 43b (see FIG. 3) of the second reduction gear 43 is engaged is formed on the outer peripheral surface thereof. A pair of support members 13e that are spaced apart in the first direction A are erected on the bottom of the intermediate case 13, and both ends of the worm wheel 46 can be rotated by the support members 13e. The movement in the axial direction (same as the first direction A) with respect to the case 11 is restricted. Further, the central axis L4 of the worm wheel 46 is parallel to the first direction A when supported by the support member 13e. In addition, a slide allowable hole 46b penetrating in the axial direction is formed at the radial center (axial center) of the worm wheel 46, and the cross sectional shape of the slide allowable hole 46b is a cross shape. .

  A slide allowable shaft 47 having a cross-shaped cross section (a cross-sectional shape in a direction perpendicular to the longitudinal direction) corresponding to the slide allowable hole 46b is inserted into the slide allowable hole 46b. The slide allowable shaft 47 has a cross-shaped cross section, and is inserted into the slide allowable hole 46b having the same cross-sectional shape so that the slide allowable shaft 47 engages with the worm wheel 46 in the circumferential direction (rotation direction) and can rotate integrally. The worm wheel 46 can slide in the axial direction. Further, when the slide allowable shaft 47 is inserted into the slide allowable hole 46 b, the center axis L 5 thereof coincides with the center axis L 4 of the worm wheel 46.

  The distal end portion of the slide allowable shaft 47 on the slide member 21 side protrudes into the slide main body 22 from a notch recess 22 b formed in the side wall of the slide main body 22. In the notch recess 22b, a substantially annular rotation assisting member 48 which is in contact with the inner peripheral surface of the notch recess 22b and is guided by the inner peripheral surface and is rotatable is disposed. 48 is immovable in the first direction A with respect to the side wall of the slide body 22. In addition, a cross-shaped insertion hole 48a corresponding to the cross-sectional shape of the slide allowable shaft 47 is formed in the central portion in the radial direction of the rotation assisting member 48, and the slide allowable shaft 47 passes through the insertion hole 48a. Projecting into the slide body 22. The rotation assisting member 48 is fixed to the slide allowable shaft 47 and connects the slide allowable shaft 47 and the slide body 22, and prevents the slide allowable shaft 47 from sliding in the first direction A with respect to the slide member 21. On the other hand, it can engage with the slide allowable shaft 47 in the circumferential direction (rotation direction) and can rotate integrally with the slide allowable shaft 47. In addition, a cylindrical pinion 49 is fixed to a distal end portion of the slide allowable shaft 47 disposed in the slide member 21. In the present embodiment, the worm wheel 46 and the slide allowable shaft 47 constitute a slide allowable coupling mechanism.

  In the slide body portion 22 of the slide member 21, a second direction D (specifically, the center axis L 3 of the linear drive shaft 37 and the center of the slide allowable shaft 47 is perpendicular to the first direction with respect to the slide body portion 22. A rack member 51 configured to be linearly slidable in the direction orthogonal to the axis L5 is disposed. The rack member 51 has a substantially rectangular shape that is long in the second direction D when viewed from the direction of the central axis L <b> 1 of the output shaft 61. The rack member 51 has a first rack portion 51a with which the pinion 49 meshes with the upper surface thereof, and is slid in the second direction D with respect to the slide member 21 when the pinion 49 is rotated. . Furthermore, the rack member 51 has a standing portion 51b that is erected upward at an end portion in the width direction on the output shaft 61 side, and a second surface is provided on the surface of the standing portion 51b on the output shaft 61 side. A rack portion 51c is formed.

  An output member 62 having the output shaft 61 is accommodated in the slide body 22. A substantially cylindrical rotation guide wall 22c is erected on the bottom of the slide main body 22 so as to face the second rack portion 51c, and an output member 62 is formed inside the rotation guide wall 22c. An output main body 63 is disposed. The output main body 63 has a bottomed cylindrical shape, and has an outer diameter that is substantially equal to the inner diameter of the rotation guide wall 22c. The output main body 63 is slidably in contact with the inner peripheral surface of the rotation guide wall 22c, and the center axis of the output shaft 61 It can rotate around L1. A substantially sector-shaped sector gear 64 extending toward the rack member 51 is integrally formed on the outer peripheral surface of the output main body 63, and the sector gear 64 is provided on the rack guide 51 side of the rotation guide wall 22c. It protrudes out of the rotation guide wall 22c from an opening 22d that is formed in the portion and opens radially outward, and meshes with the second rack portion 51c at the tip. The opening 22d formed in the rotation guide wall 22c is set to a size that allows the sector gear 64 to rotate as the rack member 51 slides.

  As shown in FIG. 6, the output shaft 61 is integrally formed at the central portion in the radial direction of the output main body 63. The output shaft 61 extends toward the side opposite to the bottom surface of the intermediate case 13 so that the central axis L1 (that is, the shaft center) is orthogonal to the first direction A on the bottom surface (sliding surface) of the intermediate case 13. Yes. The output shaft 61 is recessed with a shaft coupling portion 65 from the distal end toward the proximal end. The shaft coupling portion 65 is a through hole that penetrates the output shaft 61 (see FIG. 7), and has openings on the front end surface and the lower end surface of the output shaft 61. In addition, the shaft coupling portion 65 includes a shaft insertion portion 65a having a circular shape when viewed from the first direction A (same as the direction of the central axis L1 of the output shaft 61), and the second direction from the shaft insertion portion 65a. It is comprised from a pair of connection insertion part 65b dented in the opposite direction along D.

  Further, as shown in FIG. 5, a coil spring 66 is disposed on the outer periphery of the output shaft 61. The coil spring 66 has one end engaged with the output member 62 (sector gear 64) and the other end engaged with the slide member 21, and biases the output member 62 toward one side in the circumferential direction. Thus, rattling between the first rack portion 51a and the sector gear 64 is suppressed.

  As shown in FIG. 10, in the case 11, the front end surface of the output shaft 61 is disposed at a position close to (including abutting) the inner side surface of the upper case 12, and the upper case 12 includes the lamp An insertion hole 12b for inserting the shaft 4 (see FIG. 3) into the shaft coupling portion 65 of the output shaft 61 is formed through. The insertion hole 12b has a long hole shape in the first direction A. A part of the front end surface of the output shaft 61 is covered with a peripheral edge portion of the insertion hole 12 b in the upper case 12.

  In the actuator 1 configured as described above, when the first motor 31 is driven, the large-diameter gear 33a of the spur gear 32 and the first reduction gear 33 rotates the rotation shaft 31a of the first motor 31. Is reduced, and the first reduction gear 33 is rotated, whereby the second screw gear 36b meshed with the first screw gear 33b of the first reduction gear 33 is rotated. Then, the linear drive shaft 37 is slid with respect to the case 11 along the first direction A according to the rotation direction of the first reduction gear 33, and is slid while being guided to the slide groove 13 a together with the linear drive shaft 37. The member 21 is slid relative to the case 11 along the first direction A. As a result, the output shaft 61 arranged in the slide member 21 is slid linearly along the first direction A with respect to the case 11. At this time, the slide allowable shaft 47 connected to the slide member 21 via the rotation auxiliary member 48 is slid with respect to the worm wheel 46 together with the slide member 21. Therefore, the output shaft 61 together with the slide member 21 is in the first state while the meshing state between the first rack portion 51a and the pinion 49 and the circumferential engagement state between the slide allowable shaft 47 and the worm wheel 46 are maintained. It is slid in the direction.

  When the second motor 41 is driven, the rotation of the rotary shaft 41a of the second motor 41 is decelerated by the large gear 43a of the spur gear 42 and the second reduction gear 43, and the second When the reduction gear 43 is rotated, the worm wheel 46 meshed with the worm 43b of the second reduction gear 43 is rotated. Then, the slide allowable shaft 47 is rotated together with the second reduction gear 43, and the pinion 49 provided at the tip of the slide allowable shaft 47 is rotated. Then, the rack member 51 is slid in the second direction D with respect to the slide member 21 according to the rotation direction of the pinion 49, and the sector gear 64 moves along the central axis L1 of the output shaft 61 according to the movement direction of the rack member 51. Rotated as center. As a result, the output shaft 61 is rotated about the central axis L1 as the sector gear 64 rotates.

  As shown in FIG. 3, the lower end portion of the lamp shaft 4 is inserted into the shaft coupling portion 65 of the output shaft 61 from the outside of the case 11 through the insertion hole 12 b with respect to the actuator 1 configured as described above. ing. Here, the lamp shaft 4 will be described in detail. As shown in FIG. 6, the lamp shaft 4 has a cylindrical shape having an outer diameter smaller than the inner diameter of the shaft insertion portion 65a. The lower end portion of the lamp shaft 4 is formed with a connecting portion 4b having an outer diameter larger than the outer diameter of the central portion in the axial direction of the lamp shaft 4 and smaller than the inner diameter of the shaft insertion portion 65a. By forming the connecting portion 4b, a stepped portion is formed at the lower end portion of the lamp shaft 4 (see FIG. 8). In other words, the lamp shaft 4 is formed such that the upper part is thinner than the connecting part 4b at the lower end. In addition, a pair of connecting convex portions 4c protruding in opposite directions are formed on the outer peripheral surface of the connecting portion 4b. As shown in FIG. 7, each connecting convex portion 4 c has a columnar shape extending along a direction orthogonal to the central axis L <b> 6 of the lamp shaft 4, and the central axis L <b> 7 of each connecting convex portion 4 c is It is on a straight line perpendicular to the central axis L6. Further, the portion of the inner peripheral surface of the shaft coupling portion 65 that is in contact with the lower end portion of the lamp shaft 4 serves as an action point for transmitting the power of the output shaft 61 to the lamp shaft 4.

  The lamp shaft 4 is inserted into the shaft coupling portion 65 so that the lower end portion of the lamp shaft 4 is inserted into the two coupling insertion portions 65b from the distal end side of the output shaft 61, and the shaft coupling is performed. It is connected to the output shaft 61 by being inserted up to the opening on the proximal end side of the output shaft 61 in the portion 65. As shown in FIG. 6, in the state in which the lamp shaft 4 and the output shaft 61 are connected, the lamp shaft 4 is connected to the output shaft 61 due to the connection protrusion 4c disposed in the connection insertion portion 65b. It becomes possible to rotate integrally in the direction. Further, in the same state, as shown in FIG. 9, the central axis L <b> 7 of the pair of connecting convex portions 4 c is disposed at a position orthogonal to the central axis L <b> 3 of the linear drive shaft 37. More specifically, as shown in FIGS. 6 and 9, the central axis L7 of the connecting convex portion 4c and the central axis L3 of the linear drive shaft 37 are orthogonal to each other in a plane orthogonal to the central axis L1 of the output shaft 61. ing.

  When the output shaft 61 is slid relative to the case 11 along the first direction A, the ramp shaft 4 is tilted about the center axis L7 of the connecting convex portion 4c in the shaft connecting portion 65 as the tilting center. The As a result, as shown in FIG. 2A, the direction of light emitted from the lamp 2 fixed to the lamp shaft 4 is changed along the vertical direction B. At this time, as shown in FIG. 8, the lamp shaft 4 is formed such that the upper part is thinner than the connecting part 4 b at the lower end part, and therefore there is a gap between the lamp connecting part 65 and the shaft inserting part 65 a. It is formed and can be tilted smoothly. When the output shaft 61 is rotated about the central axis L 1, the lamp shaft 4 connected to the output shaft 61 in the shaft connecting portion 65 is rotated together with the output shaft 61. Accordingly, as shown in FIG. 2B, the direction of light emitted from the lamp 2 fixed to the lamp shaft 4 is changed along the horizontal direction C.

As described above, according to the first embodiment, the following operational effects are obtained.
(1) The ramp shaft 4 tilted with the slide drive of the output shaft 61 in the first direction A is with respect to the output shaft 61 from the center in the axial direction of the output shaft 61 to the bottom surface side of the intermediate case 13. That is, the output shaft 61 is connected from the axial center to the base end side of the output shaft 61. Therefore, the load from the lamp shaft 4 acts on the output shaft on the base end side below the distal end portion of the output shaft 61. Therefore, the inclination of the output shaft 61 can be suppressed. As a result, when the output shaft 61 is slid in the first direction A to change the direction of the light irradiated by the lamp 2 along the vertical direction B, the light direction is prevented from deviating from the desired direction. Is done.

  (2) The linear drive shaft 37 is arranged at a position where the central axis L7 of the connecting convex portion 4c and the central axis L3 of the linear drive shaft 37 are orthogonal to each other in a plane orthogonal to the central axis L1 of the output shaft 61. Yes. Therefore, since the linear drive shaft 37 acts on the connecting portion between the output shaft 61 and the lamp shaft 4 to slide the output shaft 61, the output shaft 61 is further prevented from being inclined when the output shaft 61 slides. The

  (3) The ramp shaft 4 tilted and rotated in accordance with the drive of the output shaft 61 is inserted into a shaft coupling portion 65 formed on the output shaft 61, and the coupling between the ramp shaft 4 and the output shaft 61 is the shaft This is done in the opening on the base end side of the output shaft 61 in the connecting portion 65. Therefore, the load from the lamp shaft 4 acts on the output shaft 61 on the base end side below the distal end portion of the output shaft 61. Therefore, the inclination of the output shaft 61 can be suppressed. Further, the lamp shaft 4 can be connected to the output shaft 61 with a simple configuration by simply inserting the lamp shaft 4 from the tip of the output shaft 61 into the shaft coupling portion 65 that is recessed along the center axis L1 of the output shaft 61. The connection can be performed and the inclination of the output shaft 61 can be suppressed.

  (4) The ramp shaft 4 is formed with a stepped portion when the outer diameter of the connecting portion 4b is formed, and the portion on the opening side of the shaft connecting portion 65 is closer to the base end side of the output shaft 61. It is thin. Accordingly, since a gap is secured between the inner peripheral surface of the shaft coupling portion 65 and the outer peripheral surface of the lamp shaft 4, the lamp shaft 4 is moved along the slide movement along the first direction A of the output shaft 61. In the shaft connecting portion 65, the output shaft 61 is smoothly tilted.

  (5) The front end surface of the output shaft 61 is disposed at a position close to (including abutting with) the inner side surface of the upper case 12, and a part of the front end surface of the output shaft 61 is an insertion hole in the upper case 12. It is covered by the peripheral edge of 12b. Therefore, when the output shaft 61 is about to tilt, the tip surface of the output shaft 61 abuts against the inner surface of the upper case 12, thereby preventing further tilting of the output shaft 61.

  (6) The actuator 1 can rotationally drive the output shaft 61 around the central axis L1 of the output shaft 61. Therefore, the actuator 1 not only slides the lamp shaft 4 in the first direction A as the output shaft 61 slides, but also drives the rotation of the output shaft 61 by driving the lamp shaft 4 connected to the output shaft 61. It can be rotated with.

  (7) The output shaft 61 is slid in the first direction A by the first motor 31. Further, the second motor 41 is drivingly connected to the output shaft 61 via a slide allowable connecting mechanism (that is, the worm wheel 46 and the slide allowable shaft 47) that allows the output shaft 61 to slide in the first direction A. Even when the output shaft 61 slides in the first direction A, the output shaft 61 is rotationally driven by the second motor 41. In this way, the control for sliding the output shaft 61 in the first direction A is the control of only the first motor 31, and the control for rotating the output shaft 61 is only for the second motor 41. Since it becomes control, each control can be performed easily and reliably.

  (8) Since the slide allowable shaft 47 is slidable relative to the worm wheel 46, the slide movement of the output shaft 61 in the first direction A together with the pinion 49 is allowed. Further, since the slide allowable shaft 47 is engaged in the rotational direction so as to rotate the worm wheel 46 and the pinion 49 integrally, even if the output shaft 61 slides in the first direction A, the worm wheel 46 and the pinion 49 Power can be transmitted to the output shaft 61, and the output shaft 61 can be rotationally driven by the second motor 41. The slide movement and rotation of the output shaft 61 can be performed with such a simple configuration.

(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  FIG. 11 is a partially enlarged view of the actuator 70 according to the second embodiment. The actuator 70 of the second embodiment differs from the actuator 1 of the first embodiment in the configuration of the connecting portion between the output shaft and the lamp shaft.

  As shown in FIGS. 11 and 12, the output shaft 71 integrally formed at the radial center of the output main body 63 has a central axis L <b> 10 (that is, a shaft) on the bottom surface (sliding surface) of the intermediate case 13. The center) extends toward the opposite side of the bottom surface of the intermediate case 13 so as to be orthogonal to the first direction A. The output shaft 71 has a substantially frustoconical shape, and is formed such that the width in the first direction A is reduced in detail, so that the output shaft 71 gradually decreases from the base end toward the tip end. . Further, the height of the output shaft 71 (that is, the length in the axial direction) is formed slightly higher than the height of the output main body 63. A pair of engaging surfaces 71 a that are parallel to the first direction and perpendicular to the second direction are formed on both side surfaces of the output shaft 71 in the second direction D. As shown in FIG. 13, the two engaging surfaces 71 a that are parallel to each other are formed in a range from the proximal end to the front of the distal end of the output shaft 71.

  Further, the output shaft 71 has a pair of connection support portions 71b formed to protrude from the respective engagement surfaces 71a. Each connection support portion 71 b has a columnar shape extending in the second direction D, and is formed on the base end side (the bottom surface side of the intermediate case 13) from the center of the output shaft 71 in the axial direction. The two connection support portions 71b have the same position in the direction of the center axis L10 of the output shaft 71, and the center axis L11 of the two connection support portions 71b is orthogonal to the center axis L10 of the output shaft 71. . Furthermore, as shown in FIG. 12, the central axis L11 of the two connection support portions 71b is orthogonal to the central axis L3 of the linear drive shaft 37 in one plane orthogonal to the central axis L10 of the output shaft 71.

  On the other hand, at the lower end portion of the lamp shaft 4 connected to the output shaft 71, a connected portion 81 that is extrapolated to the output shaft 71 is integrally formed. The connected portion 81 has a substantially bottomed cylindrical shape extending along the axial direction of the lamp shaft 4, and has a connecting concave portion 81 a that is recessed from the lower end along the axial direction. As shown in FIG. 12, the depth of the connecting recess 81 a is formed deeper than the length of the output shaft 71 in the axial direction. 11 and 13, the cross-sectional shape of the connecting recess 81a (the cross-sectional shape cut along the direction orthogonal to the axial direction of the lamp shaft 4) is the cross-sectional shape of the base end portion of the output shaft 71 ( A cross-sectional shape cut along a direction orthogonal to the central axis L10) is substantially the same shape, and a track shape extending along the first direction A is formed. The connecting recess 81a has a constant cross-sectional shape from the opening to the bottom. The connecting recess 81a has a pair of engaging surfaces 81b that are flat and are opposed to each other in the radial direction, and the distance between the two engaging surfaces 81b is the pair of engaging surfaces provided on the output shaft 71. The distance between the surfaces 71a is substantially equal.

  A pair of support recesses 81c are formed on the lower end surface of the connection recess 81 on the opening side of the connection recess 81a. The two support recesses 81 c are formed at two positions spaced by 180 ° at the peripheral edge of the lower end surface of the coupled portion 81, and are respectively formed on the outer peripheral side of the engaging surface 81 b in the coupled portion 81. Each support recess 81c is formed in an arc shape that is recessed in the axial direction of the lamp shaft 4, and along the radial direction from the outer peripheral edge of the lower end surface of the connected portion 81 to the connection recess 81a. It extends. Furthermore, the curvature of the inner peripheral surface of each support recess 81c is set to be equal to the curvature of the outer peripheral surface of the connection support portion 71b.

  The lamp shaft 4 configured as described above is connected to the output shaft 71 when the connected portion 81 is extrapolated to the output shaft 71. More specifically, the lamp shaft 4 is coupled to the output shaft 71 by inserting the output shaft 71 into a coupling recess 81 a formed in the coupled portion 81. When the output shaft 71 is inserted into the coupling recess 81a, the pair of engagement surfaces 71a and the pair of engagement surfaces 81b come into contact with each other and engage in the rotation direction of the output shaft 71. Further, the pair of connection support portions 71b are disposed in the pair of support recess portions 81c, the outer peripheral surface of the connection support portion 71b abuts on the inner peripheral surface of the support recess portion 81c so as to be slidable, and the pair of connection support portions 71b The lower end of the shaft 4 is supported. The lamp shaft 4 is also engaged in the rotational direction of the output shaft 71 by the pair of connection support portions 71b and the pair of support concave portions 81c, and can rotate integrally with the output shaft 71 in the circumferential direction. Thus, the lamp shaft 4 connected to the output shaft 71 can be tilted with respect to the output shaft 71 with the central axis L11 of the connection support portion 71b as the center of tilt. In the present embodiment, the portion of the output shaft 71 that contacts the connected portion 81 of the lamp shaft 4 on the outer peripheral surface (including the outer peripheral surface of the connection support portion 71b) from the central portion in the direction of the central axis L1. Corresponds to the shaft connecting portion, and the outer peripheral surface of the connecting support portion 71b that is in contact with the inner peripheral surface of the support recess 81c serves as an operating point for transmitting the power of the output shaft 71 to the lamp shaft 4.

  When the output shaft 71 is slid with respect to the case 11 along the first direction A, the ramp shaft 4 is inclined with the central axis L11 of the connection support portion 71b as the tilting center. As a result, the direction of light emitted from the lamp 2 fixed to the lamp shaft 4 is changed along the vertical direction B (see FIG. 2A). At this time, since the output shaft 71 is formed so as to be gradually narrowed in the first direction A from the proximal end toward the distal end, a gap is formed between the coupled portion 81 and the output shaft 71. Thus, the relative inclination of the output shaft 71 with respect to the connected portion 81 is smoothly performed in the connecting recess 81a.

  When the output shaft 71 is rotated about the central axis L <b> 10, the lamp shaft 4 engaged in the rotation direction of the output shaft 71 is rotated together with the output shaft 71. Accordingly, the direction of light emitted from the lamp 2 fixed to the lamp shaft 4 is changed along the horizontal direction C (see FIG. 2B).

As described above, according to the second embodiment, the following functions and effects are provided in addition to the functions and effects similar to those of the first embodiment (1) and (6) to (8).
(1) The ramp shaft 4 tilted with the slide drive of the output shaft 71 in the first direction A has the connected portion 81 provided at the base end thereof extrapolated to the output shaft 71, and the output shaft 71 is connected to the output shaft 71 by coming into contact with the outer peripheral surface (including the outer peripheral surface of the connection support portion 71 b) on the bottom surface side of the intermediate case 13 with respect to the center in the axial direction. Therefore, the load from the lamp shaft 4 acts on the output shaft 71 on the base end side below the distal end portion of the output shaft 71. Therefore, the lamp shaft 4 can be connected to the output shaft 71 with a simple configuration in which the connected portion 81 of the lamp shaft 4 is extrapolated to the output shaft 71, and the inclination of the output shaft 71 is suppressed. Can do.

  (2) The central axis L11 of the two connection support portions 71b is orthogonal to the central axis L3 of the linear drive shaft 37 in one plane orthogonal to the central axis L10 of the output shaft 71. That is, the linear drive shaft 37 is disposed at a position where the central axis L11 of the connection support portion 71b and the central axis L3 of the linear drive shaft 37 are orthogonal to each other in a plane orthogonal to the central axis L1 of the output shaft 71. . Therefore, since the linear drive shaft 37 acts on the connecting portion between the output shaft 71 and the lamp shaft 4 to slide the output shaft 71, the output shaft 71 is further prevented from tilting when the output shaft 71 slides. The

  (3) The output shaft 71 is formed so that the width in the first direction A is reduced in more detail so that the output shaft 71 becomes narrower from the proximal end toward the distal end. Therefore, since a gap is secured between the inner peripheral surface of the connected portion 81 of the lamp shaft 4 and the outer peripheral surface of the output shaft 71, along with the sliding movement of the output shaft 71 along the first direction A, The ramp shaft 4 is smoothly tilted with respect to the output shaft 71 on the outer periphery of the output shaft 71.

In addition, you may change embodiment of this invention as follows.
In each of the embodiments described above, the present invention is embodied in the actuators 1 and 70 used in the vehicle lamp device. However, the actuators 1 and 70 have the first direction of the output shafts 61 and 71 in addition to the vehicle lamp device. It may be used for other devices that operate by using the slide drive of A and the rotational drive of the output shafts 61 and 71 around the central axes L1 and L10 orthogonal to the first direction A.

  The slide allowable coupling mechanism of each of the above embodiments may be changed to another configuration as long as it can transmit power while allowing the output shafts 61 and 71 to slide in the first direction A. For example, the slide member 21 can be slid in the first direction A with respect to the slide allowable shaft 47, and the length of the first rack portion 51a in the first direction A is set by the output shafts 61 and 71. The length is set to be equal to or longer than the distance of sliding movement in the first direction A. In this manner, when the slide member 21 is slid in the first direction A with respect to the case 11 together with the output shafts 61 and 71, the first rack portion 51a and the pinion 49 are relatively slid and moved. The output shafts 61 and 71 are slid in the first direction A while the meshed state of the first rack portion 51a and the pinion 49 is maintained (that is, power can be transmitted).

  In the above embodiments, the slide allowable shaft 47 has the pinion 49 fixed to one end on the output shaft 61, 71 side and the other end to the worm wheel 46 in the first direction A (that is, the rotational axis direction). Is slidably inserted along. This may be reversed. That is, the slide allowable shaft 47 may be configured such that one end side is fixed to the worm wheel 46 and the other end side is inserted into the pinion 49 so as to be slidable in the first direction A.

  The actuators 1 and 70 of each of the above embodiments can drive the output shafts 61 and 71 in the first direction A, and can rotate the output shafts 61 and 71 around the central axes L1 and L10. However, the actuators 1 and 70 are configured to rotationally drive the output shafts 61 and 71 around the central axes L1 and L10 (that is, the second motor 41, the flat gear 42, the second reduction gear 43, the second support shaft). 44, the worm wheel 46, the slide allowable shaft 47, the pinion 49, the ramp member 51, and the like), and the output shafts 61 and 71 may be configured to have only a configuration of slidingly driving in the first direction A. In this case, the actuators 1 and 70 are used in a device that operates using the slide drive of the output shafts 61 and 71 in the first direction A.

  In the second embodiment, the output shaft 71 is formed so as to become narrower from the proximal end to the distal end of the output shaft 71. However, the shape of the output shaft 71 is not limited to this as long as the ramp shaft 4 can tilt with respect to the output shaft 71 as the output shaft 71 slides in the first direction A. For example, the output shaft 71 may be formed in a columnar shape whose cross-sectional shape is constant in the axial direction.

  In the second embodiment, the connected portion 81 of the lamp shaft 4 is extrapolated, and the connected portion 81 comes into contact with the outer peripheral surface of the bottom side of the intermediate case 13 from the axial center of the output shaft 71. As a result, the lamp shaft 4 is connected to the output shaft 71. However, the structure which connects the output shaft 71 and the lamp shaft 4 in 2nd Embodiment is not restricted to this. The lamp shaft 4 is extrapolated to the output shaft 71, and the lamp shaft 4 comes into contact with the portion on the bottom surface side of the intermediate case 13 from the axial center of the outer peripheral surface of the output shaft 71, whereby the output shaft 71 and the lamp shaft 4 Any configuration is possible as long as they are connected to each other. For example, in the output shaft 71 of the second embodiment, the connection support portion 71 b is omitted, and the opening portion of the connection concave portion 81 a of the connected portion 81 extrapolated to the output shaft 71 is the base end on the outer peripheral surface of the output shaft 71. You may comprise so that it may contact | abut to the site | part on the part side. In this case, the output shaft 71 and the lamp shaft 4 are connected by the portion on the outer peripheral surface of the output shaft 71 on the base end side and the opening of the connecting recess 81a, and the base end side of the outer peripheral surface of the output shaft 71 is connected. The portion where the opening of the connecting recess 81a abuts is the point of action for transmitting the power of the output shaft 71 to the lamp shaft 4. Further, for example, the output shaft 71 may be formed in a column shape that does not contact the inner peripheral surface of the connection recess 81a, and the output shaft 71 may have a pair of connection support portions 71b on both sides in the second direction D. In this case, in the lamp shaft 4, the connected portion 81 is extrapolated to the output shaft 71, the connection support portion 71b is disposed in the support recess 81c, and the inner peripheral surface of the support recess 81c is the connection support portion 71b. Is connected to the output shaft 71 by abutting on the outer peripheral surface. Even if it does in this way, the effect similar to (1) of the said 2nd Embodiment can be acquired.

  In the first embodiment, the front end surface of the output shaft 61 is disposed at a position close to (including abutting with) the inner surface of the upper case 12, and a part of the front end surface of the output shaft 61 is The case 12 is covered by the peripheral edge of the insertion hole 12b. However, the entire distal end surface of the output shaft 61 may be exposed to the outside from the insertion hole 12b. Further, the output shaft 61 may be formed such that a tip portion thereof protrudes outside the case 11 from the insertion hole 12b.

  In the first embodiment, the lamp shaft 4 is formed with a stepped portion by forming the outer diameter of the connecting portion 4b, and the portion on the opening side is narrower than the bottom side of the shaft connecting portion 65. Is formed. However, as shown in FIG. 14, the lower end portion of the lamp shaft 4 has an upper opening of the shaft coupling portion 65 so that the outer diameter of the portion of the upper opening portion of the shaft coupling portion 65 becomes smaller in the shaft coupling portion 65. It may be a tapered shape (conical shape) that is gradually reduced in diameter toward the part side. Even if it does in this way, the effect similar to (5) of the said embodiment can be acquired.

  Further, when the outer diameter of the lamp shaft 4 is constant, a portion on the opening side at the tip of the output shaft 61 in the shaft connecting portion 65 may be formed larger. For example, as shown in FIG. 15, the stepped portion 91 is formed by expanding the diameter of the portion on the opening side of the tip of the output shaft 61 in the shaft connecting portion 65, and the tip of the output shaft 61 in the shaft connecting portion 65 is opened. The gap between the lamp shaft 4 and the inner peripheral surface of the lamp shaft 4 is increased. Further, for example, as shown in FIG. 16, the inclined surface 92 is formed by gradually expanding the diameter of the shaft coupling portion 65 (shaft insertion portion 65a) toward the opening at the tip of the output shaft 61 in the shaft coupling portion 65. The gap between the inner peripheral surface of the lamp shaft 4 is enlarged on the opening side of the tip of the output shaft 61 in the shaft coupling portion 65. Even in this case, since a gap is secured between the inner peripheral surface of the shaft coupling portion 65 and the outer peripheral surface of the lamp shaft 4, along with the sliding movement of the output shaft 61 along the first direction A, The lamp shaft 4 is smoothly tilted with respect to the output shaft 61 within the shaft coupling portion 65. In the output shaft 61 of the above embodiment and the example shown in FIG. 13, the stepped portion 91 or the inclined surface 92 may be formed.

  In the first embodiment, the shape of the shaft coupling portion 65 formed on the output shaft 61 is not limited to the shape of the above-described embodiment, and at least the tip of the output shaft 61 is opened so that the lower end portion of the lamp shaft 4 can be inserted. In other words, it may be any shape that is recessed along the central axis L1 from the center in the axial direction of the output shaft 61 to the base end side (including the center in the axial direction of the output shaft 61). For example, the shaft coupling portion 65 may be a hole that is recessed along the central axis L <b> 1 from the distal end of the output shaft 61 to the proximal end of the output shaft 61. In this case, the output shaft 61 and the lamp shaft 4 are connected by disposing the connecting convex portion 4 c at the bottom of the shaft connecting portion 65.

  In the first embodiment, the linear drive shaft 37 is perpendicular to the central axis L7 of the connecting convex portion 4c and the central axis L3 of the linear drive shaft 37 in one plane orthogonal to the central axis L1 of the output shaft 61. Placed in position. In the second embodiment, the linear drive shaft 37 is orthogonal to the central axis L11 of the connection support portion 71b and the central axis L3 of the linear drive shaft 37 in a plane perpendicular to the central axis L1 of the output shaft 71. It is arranged at the position to do. However, the arrangement position of the linear drive shaft 37 is not limited to this. For example, in the first embodiment, the linear drive shaft 37 is viewed from the direction of the central axis L1 of the output shaft 61, and the center axis L3 and the center of the connecting convex portion 4c of the lamp shaft 4 inserted into the shaft connecting portion 65. You may arrange | position in the position where the axis line L7 orthogonally crosses. In the second embodiment, the linear drive shaft 37 is disposed at a position where the central axis L3 of the output shaft 71 and the central axis L11 of the connection support portion 71b are orthogonal to each other when viewed from the direction of the central axis L10 of the output shaft 71. Also good. In this way, the force by which the output shafts 61 and 71 are slid in the first direction by the linear drive shaft 37 acts so as to be orthogonal to the center axis lines L1 and L10 of the output shafts 61 and 71. 71 is slid, and the tilting center of the ramp shaft 4 (ie, the central axis L7 of the connecting convex portion 4c or the central axis L11 of the connecting support portion 71b) tilted as the output shafts 61 and 71 slide is output. It passes through the shaft center of the shafts 61 and 71. Therefore, since the force for sliding the output shafts 61, 71 in the first direction A is applied to the output shafts 61, 71 from the linear drive shaft 37, the output shafts 61, 71 are more inclined. It becomes difficult. Further, the actuators 1 and 70 may be configured to include a plurality of linear drive shafts 37 for sliding the output shafts 61 and 71 in the first direction A.

  The output shafts 61 and 71 are connected to the lamp shaft 4 at the bottom side of the intermediate case 13 from the center in the axial direction, and at least the lamp shaft 4 is moved in the first direction as the output shafts 61 and 71 are driven. What is necessary is just to be comprised so that sliding movement to A is possible. If it does in this way, the effect similar to (1) of the said 1st Embodiment can be acquired.

  The gears of the above embodiments (the spur gears 32, 42, the first reduction gear 33, the second screw gear 36b, the second reduction gear 43, the worm wheel 46, etc.) can achieve the same operation. If there are, the number (stage number), type, etc. may be changed.

The technical ideas that can be grasped from each of the above embodiments and each of the above modifications are described below.
(A) In the vehicular lamp device according to claim 12, the shaft connecting portion is recessed from the tip of the output shaft along the center of the shaft, and the driven shaft is connected to the shaft connecting portion. The vehicular lamp device is characterized in that it is inserted and connected to the output shaft, and a portion on the opening side of the shaft connecting portion is narrower than a portion on the bottom side of the shaft connecting portion. According to this configuration, since a gap is secured between the inner peripheral surface of the shaft coupling portion and the outer peripheral surface of the driven shaft, the driven shaft is moved along with the sliding movement along the first direction of the output shaft. Is smoothly tilted with respect to the output shaft within the shaft coupling portion.

The perspective view for demonstrating the inside of an actuator. (A) is the schematic diagram which looked at the lamp device for vehicles from the side of a horizontal direction, (b) is the schematic diagram which looked at the lamp device for vehicles from the upper direction. The exploded perspective view of the actuator of a 1st embodiment. The top view of the actuator of a 1st embodiment which opened the upper part. The partial expansion perspective view of the actuator of a 1st embodiment which opened the upper part. The partial enlarged plan view of the slide member vicinity of the actuator of 1st Embodiment. The fragmentary sectional view of the actuator of a 1st embodiment (alpha-alpha sectional view in Drawing 6). The fragmentary sectional view of the actuator of a 1st embodiment (beta-beta sectional view in Drawing 6). The fragmentary sectional view of the actuator of a 1st embodiment (y-gamma sectional view in Drawing 6). The perspective view of the actuator of 1st Embodiment. The partial enlarged plan view of the slide member vicinity of the actuator of 2nd Embodiment. The fragmentary sectional view of the actuator of a 2nd embodiment (delta-delta sectional view in Drawing 11). The partial expansion perspective view of the output shaft and lamp shaft in 2nd Embodiment. Sectional drawing of the actuator of another form. Sectional drawing of the actuator of another form. Sectional drawing of the actuator of another form.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,70 ... Actuator, 2 ... Lamp, 3 ... Bracket which comprises vehicle, 4 ... Lamp shaft as actuated shaft, 11 ... Case, 12b ... Insertion hole, 31 ... 1st motor as 1st drive source , 37... Linear drive shaft, 41... Second motor as a second drive source, 46... Worm wheel as a drive side rotating body constituting a slide permissible coupling mechanism, 47. Axis 49: Pinion as output side rotating body 61, 71: Output shaft 65: Axis connecting part A: First direction B: Vertical direction C: Horizontal direction L1, L10: As axis center Center axis, L3 ... Center axis of linear drive shaft, L7, L11 ... Center axis as tilting center line.

Claims (12)

An output having a slide surface parallel to the first direction is supported so as to be slidable linearly in the first direction on the slide surface, and the axis center is orthogonal to the first direction. An actuator comprising a shaft and capable of sliding the output shaft in the first direction,
The output shaft is provided with a shaft coupling portion which the operating shaft is tilted along with the slide drive of the output shaft serving as a working point for the linked and the object to be operated shaft, said working point, the axial direction of the output shaft The actuator is located on the slide surface side on the side opposite to the tip from the center of the actuator. The actuator according to claim 1, wherein the first drive source is fixed to the case and slidably drives the output shaft in the first direction;
Extending along the first direction and drivingly connected to the first drive source and the output shaft, the output shaft is slid in the first direction by the driving force of the first drive source. And at least one linear drive shaft that slides in the first direction,
When viewed from the axial center direction of the output shaft, the central axis of the linear drive shaft is orthogonal to the tilt center line that is the tilt center when the output shaft is tilted due to the sliding movement of the output shaft. An actuator characterized by that. The actuator according to claim 2, wherein
One linear drive shaft is provided,
An actuator characterized in that a center axis of the linear drive shaft and the tilt center line are orthogonal to each other in one plane. The actuator according to any one of claims 1 to 3,
The actuator is characterized in that the shaft connecting portion is recessed from the tip of the output shaft along the shaft center, and the driven shaft is inserted and connected. The actuator according to claim 4, wherein
In the actuator, the shaft connecting portion is formed to have a large opening-side portion opened at a distal end surface of the output shaft. In the actuator according to claim 4 or 5,
The case is formed with an insertion hole for inserting the driven shaft into the shaft connecting portion from the outside of the case,
The output shaft is disposed in the case in such a manner that the front end surface thereof is close to the inner side surface of the case, and at least a part of the front end surface is covered with a peripheral edge portion of the insertion hole in the case. An actuator characterized by. The actuator according to any one of claims 1 to 3,
The shaft connecting portion is a portion of the outer peripheral surface of the output shaft on the slide surface side from the center in the axial direction of the output shaft, and the operated shaft is extrapolated to the output shaft and contacts the shaft connecting portion. The actuator is characterized in that the actuated shaft is connected by contact. The actuator according to claim 7, wherein
The actuator is characterized in that the output shaft is formed so as to become narrower from the proximal end to the distal end of the output shaft. The actuator according to any one of claims 1 to 8,
An actuator characterized in that the output shaft can be slid in the first direction, and the output shaft can be driven to rotate about the center of the output shaft. The actuator according to claim 9, wherein
A first drive source fixed to the case and drivingly connected to the output shaft to slide drive the output shaft in the first direction;
And a second drive source that is drivingly connected to the output shaft through a slide allowable connecting mechanism that allows the output shaft to slide in the first direction and rotationally drives the output shaft. Actuator. The actuator according to claim 10, wherein
The slide allowable coupling mechanism is:
A drive-side rotator that is provided immovably in the first direction and rotates in accordance with the rotational force of the second drive source;
The drive-side rotator is provided so that the shaft center coincides with the output-side shaft, and is provided so as to be movable in the first direction integrally with the output shaft along the rotation axis direction. An output-side rotating body that rotates the shaft;
The drive-side rotator and the output-side rotator are inserted through the shaft centers of the drive-side rotator and the output-side rotator so as to engage with each other in the rotational direction so as to integrally rotate the drive-side rotator and the output-side rotator. And at least one of the output side rotators, a slide allowable shaft inserted so as to be slidable in the rotational axis direction thereof. The actuator according to any one of claims 1 to 11,
An actuated shaft that is rotatably supported with respect to the vehicle and whose lower end portion is coupled to the shaft coupling portion;
The direction of the light to be irradiated is changed along the vertical direction by tilting of the driven shaft that is fixed to the driven shaft and slides in the first direction of the output shaft, or the output shaft The direction of the light irradiated by the tilt of the driven shaft accompanying the sliding movement in the first direction changes along the vertical direction, and the direction of the light irradiated by the rotation of the driven shaft accompanying the rotation of the output shaft is horizontal. A lamp device for a vehicle, comprising: a lamp that changes along a direction.

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