JP5527103B2 - Rotating device for vehicle - Google Patents

Description

  The present invention relates to a rotating device for a vehicle that rotates a rotating member with respect to a fixed member by a driving device.

  This type of vehicle rotating device has been conventionally used (for example, Patent Document 1). Hereinafter, a conventional vehicle rotating device will be described. A conventional vehicle rotation device includes a bracket, a lamp unit that is rotatably attached to the bracket via a rotation shaft, an actuator that is fixedly held by the bracket and rotates the lamp unit with respect to the bracket, and a rotation And a bearing that rotatably supports the shaft on the bracket. When the actuator is driven, the lamp unit rotates with respect to the bracket.

  In such a vehicular rotating device, it is important to prevent the bearing from falling off the bracket.

JP 2010-49861 A

  The problem to be solved by the present invention is that it is important to prevent the bearing member (bearing) from falling off the fixed member (bracket) in this type of vehicle rotating device.

The present invention (the invention according to claim 1) is fixedly held by a fixing member, a rotating member in which the shaft member is integrally provided and rotatably attached to the fixing member via the shaft member, and the fixing member. A drive device that is attached to one end of the shaft member and rotates the rotating member relative to the fixed member via the shaft member, a bearing member that rotatably supports the other end of the shaft member on the fixed member, comprising a, the fixing member includes a recess and the other end portion of the shaft member is positioned, an opening for positioning in a recess and the other end of the shaft member, and provided respectively in the bearing member, the bearing An elastic engagement portion that elastically engages with an edge of one end of the shaft member of the recessed portion of the fixed member when the member is mounted on the shaft member and the recessed portion of the fixed member from the other end of the shaft member; A contact portion that contacts the edge of the other end side of the shaft member of the recess, respectively Vignetting have, the edge of the recess of the fixing member is not fitting projection is provided on the bearing member, and the fitting recess provided fitting projection and the fitting recess, A fitting portion that fits each other and prevents the shaft member from rotating about the central axis of the shaft member when the bearing member is mounted in the concave portion of the shaft member and the fixed member from one end to the other end of the shaft member. Yes, an elastic engagement portion is provided on one end of the bearing member, and a contact portion and a fitting recess are provided on the other end of the bearing member, respectively. The fitting recess is provided so as to be opposed to the drawing direction of the molding die of the bearing member .

Further, according to the present invention (the invention according to claim 2 ), the fixing member includes a fixing portion and a bracket portion, and the bracket portion is provided with a recess, an opening, and a fitting portion, respectively. Is characterized in that the drive device is fixedly held, the rotating member is rotatably attached via a shaft member and a bearing member, and the bracket portion is fixedly held by the fixing portion.

  According to the vehicle rotating device of the present invention (the invention according to claim 1), the shaft member integrated with the rotating member is positioned in the recess from the opening of the fixing member by means for solving the above-described problems, and the bearing member is The shaft member and the fixing member are attached to the recesses from the other end of the shaft member to one end. Then, the elastic engagement portion of the bearing member is elastically engaged with the edge portion on one end side of the shaft member of the concave portion of the fixed member, and the bearing member is restricted from moving from one end of the shaft member to the other end. Further, the contact portion of the bearing member abuts against the edge portion of the shaft member at the other end of the concave portion of the fixed member, and the bearing member is restricted from moving from the other end of the shaft member to the one end. Further, the fitting portion of the bearing member is fitted into the fitting portion of the fixed member, and the bearing member is restricted from rotating around the central axis of the shaft member. As a result, the rotation device for a vehicle according to the present invention (the invention according to claim 1) restricts the movement and rotation of the bearing member in the three directions, so that the bearing member can be securely attached to the fixed member. Can be reliably prevented from falling off the fixing member.

According to another aspect of the present invention (the invention according to claim 1 ), the vehicle rotating device is formed by means for solving the above-mentioned problems, that is, the elastic engagement portion and the fitting concave portion of the bearing member are molded into the bearing member. Since the bearing member can be manufactured without using a slide mold, the mold cost can be reduced and the manufacturing can be made accordingly. Cost can be reduced.

Further, the vehicle rotation device of the present invention (the invention according to claim 2 ) is configured to fix and hold the driving device on the bracket portion of the fixing member by means for solving the above-mentioned problem, A rotating member is rotatably attached to the bracket portion via a shaft member and a bearing member, and the bracket portion of the fixed member, the driving device, the rotating member, the shaft member, and the bearing member can be used as a sub assembly. . As a result, the vehicular rotating device of the present invention (the invention according to claim 2 ) is configured to fix and hold the bracket portion of the fixing member to the fixing portion of the fixing member, so that the sub-assembly driving device, the rotating member, and the shaft member are Since the bearing member can be easily attached to the fixed portion, that is, the fixed member via the bracket portion, the assembly workability can be improved, and the number of assembly steps can be reduced. Manufacturing costs can be reduced.

FIG. 1 is a side view of a main part showing an embodiment of a vehicle rotating device according to the present invention. FIG. 2 is a perspective view showing the main part when the upper movable reflector and the lower movable reflector are located at the first position. FIG. 3 is a perspective view showing the main part when the upper movable reflector and the lower movable reflector are located at the second position, similarly. FIG. 4 is a front view showing the main part when the upper movable reflector and the lower movable reflector are located at the first position, similarly. FIG. 5 is a front view showing the main part when the upper movable reflector and the lower movable reflector are located at the second position, similarly. FIG. 6 is also an explanatory diagram showing a low beam light distribution pattern having an oblique cutoff line and a horizontal cutoff line. FIG. 7 is also an explanatory view showing a high beam light distribution pattern. FIG. 8 is also a front view showing the bearing member. FIG. 9 is also an explanatory view showing a state in which the shaft member is rotatably attached to the bracket portion via the bearing member. FIG. 10 is also an explanatory cross-sectional view showing a state in which the shaft member is rotatably attached to the bracket portion via the bearing member. FIG. 11 is an explanatory cross-sectional view showing a state in which the shaft member is rotatably attached to the bracket portion via the bearing member. FIG. 12 is also an explanatory cross-sectional view showing a state in which the bearing member is molded with a mold. FIG. 13 is an explanatory cross-sectional view showing a state where the mold is released (mold release state) after molding the bearing member.

  Embodiments of a vehicle rotating apparatus according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments. In the drawing, reference sign “VU-VD” indicates vertical lines on the upper and lower sides of the screen. Reference sign “HL-HR” indicates horizontal lines on the left and right of the screen. In this specification and claims, “up, down, front, back, left, right” means “up” of the vehicle when the vehicle rotating device according to the present invention is attached to the vehicle (automobile). , Down, front, back, left, right ".

  FIG. 8A is a front view of the bearing member. FIG. 8B is a rear view of the bearing member. FIG. 8C is a cross-sectional view taken along the line CC in FIG. FIG. 8D is a view taken in the direction of arrow D in FIG. FIG. 8E is a cross-sectional view taken along line EE in FIG. FIG. 8F is a view taken in the direction of arrow F in FIG. FIG. 9A is an explanatory cross-sectional view corresponding to FIG. 8A showing a state before the shaft member is positioned in the concave portion of the bracket portion. FIG. 9B is an explanatory cross-sectional view corresponding to FIG. 8A showing a state before the bearing member is mounted in the recesses of the shaft member and the bracket portion. FIG. 9C is an explanatory cross-sectional view corresponding to FIG. 8A showing a state in which the bearing member is mounted in the recesses of the shaft member and the bracket portion. FIG. 10A is an explanatory cross-sectional view corresponding to FIG. 8C showing a state before the shaft member is positioned in the concave portion of the bracket portion. FIG. 10 (B) is an explanatory cross-sectional view corresponding to FIG. 8 (C) showing a state before the bearing member is mounted in the recesses of the shaft member and the bracket portion. FIG. 10C is an explanatory cross-sectional view corresponding to FIG. 8C showing a state in which the bearing member is mounted in the recesses of the shaft member and the bracket portion. FIG. 11A is an explanatory cross-sectional view corresponding to FIG. 8E showing a state before the shaft member is positioned in the concave portion of the bracket portion. FIG. 11B is an explanatory cross-sectional view corresponding to FIG. 8E showing a state before the bearing member is mounted in the recesses of the shaft member and the bracket portion. FIG. 11C is an explanatory cross-sectional view corresponding to FIG. 8E showing a state in which the bearing member is mounted in the recesses of the shaft member and the bracket portion. FIG. 12A is an explanatory cross-sectional view corresponding to FIG. 8C showing a state in which the bearing member is molded with a mold. FIG. 12 (B) is an explanatory cross-sectional view corresponding to FIG. 8 (E) showing a state in which the bearing member is molded with a mold. FIG. 13A is an explanatory cross-sectional view corresponding to FIG. 8C showing a state where the mold is released (mold release state) after molding the bearing member. FIG. 13B is an explanatory cross-sectional view corresponding to FIG. 8E showing a state where the mold is released (mold release state) after the bearing member is molded.

  1 to 5, reference numeral 1 denotes a vehicle rotating device in this embodiment, and in this example, an automotive headlamp. Hereinafter, the automotive headlamp 1 will be described. First, the configuration of the automotive headlamp 1 will be described.

  The vehicle headlamp 1 has a light distribution pattern for passing (low beam light distribution pattern) shown in FIG. 6, that is, an oblique cut-off line CL1 on the traveling lane side (left side) at the elbow point E, Further, the low beam light distribution pattern LP having the horizontal cut line CL2 on the opposite lane side (right side), and the travel light distribution pattern (high beam light distribution pattern) shown in FIG. 7, that is, the first high beam light distribution pattern HP1. The second high beam light distribution pattern HP2, the third high beam light distribution pattern HP3, and the dimming low beam light distribution pattern LP1 are switched to irradiate the front of the vehicle. The angle formed between the oblique cut-off line CL1 and the horizontal line HL-HR of the screen is about 15 °.

  The vehicle headlamp 1 includes a fixed reflector 3 as a fixing portion of the fixing member having an upper reflection surface 2U and a lower reflection surface 2D each having a parabolic free curved surface (NURBS curved surface), and a parabolic free An upper movable reflector 13U as the rotating member having the upper reflecting surface 12U having a curved surface (NURBS curved surface) and a lower movable reflector 13D as the rotating member having the lower reflecting surface 12D, and a planar rectangular shape (planar rectangular shape) The upper semiconductor light source 5U and the lower semiconductor light source 5D having the light emitting chip 4), the holder 6 and the heat sink member 7 as a fixing portion of the fixing member, the driving device 14, a lamp housing and a lamp lens (not shown). (For example, a plain outer lens).

  The rotating device for a vehicle in this embodiment includes a rotating member that is integrally provided with a fixing member and a shaft member 15 and is rotatably attached to the fixing member via the shaft member 15, and the fixing member. The shaft member 15 is attached to one end thereof, and the driving device 14 rotates the rotating member with respect to the fixing member via the shaft member 15; And a bearing member 4 that rotatably supports the end portion on the fixing member.

  The fixing member includes a fixing part and a bracket part 30. The fixing part is mainly composed of the heat sink member 7. The fixed reflector 3 and the holder 6 are fixed to the heat sink member 7 by appropriate fixing means. The rotating member includes the upper movable reflector 13U and the lower movable reflector 13D. One end of the shaft member 15 is integrally provided on the upper movable reflector 13U and the lower movable reflector 13D.

  The driving device 14 is fixedly held on one side of the bracket 30 (the side opposite to FIG. 1). Further, the upper movable reflector 13U and the lower movable reflector 13D are rotatably attached to the other side portion (side portion in FIG. 1) of the bracket portion 30 via the shaft member 15 and the bearing member 4. It has been. The bracket portion 30 is fixedly held by the screw 60 or the like on the heat sink member 7 of the fixing portion.

  As shown in FIGS. 9 to 11, the other side portion of the bracket portion 30 has a circular recess 31 portion where the other end portion of the shaft member 15 is located, and the other end portion of the shaft member 15 is the recess portion. A rectangular opening 32 for positioning at 31 is provided. Two square fitting protrusions 33 as fitting parts are integrally formed at equal intervals on the edge part of the concave part 31 of the bracket part 30 and on the edge part on the other end side of the shaft member 15. Is provided.

  As shown in FIGS. 12 and 13, the bearing member 4 is formed by the molds 10 and 11 without using a slide mold. As shown in FIG. 8, the bearing member 4 has a cylindrical shape having an insertion hole 40 through which the bearing member 15 is inserted. The inner diameter on the one end portion side of the insertion hole 40 is larger than the inner diameter on the other end side of the insertion hole 40. The inner diameter of the insertion hole 40 may be the same.

  On one end side of the bearing member 4, two lance-shaped elastic engagement portions 42 are integrally provided at equal intervals through a kerf 41. On the other hand, a hook-shaped contact portion 43 is integrally provided on the other end portion side of the bearing member 4. Further, two square fitting recesses 44 as fitting portions are provided on the other end portion side of the bearing member 4, that is, the hook-shaped contact portion 43, and the fitting convex portion 33 of the bracket portion 30. Correspondingly. The two elastic engagement portions 42 and the two fitting recesses 44 are provided to face each other in the direction in which the molds 10 and 11 of the bearing member 4 are pulled out.

The elastic engagement portion 42 of the bearing member 4 is configured such that the bearing member 4 extends from the other end of the shaft member 15 to the recess 31 of the shaft member 15 and the bracket portion 30 (FIG. 9B). 10 (B), when mounted (in the direction of the solid line arrow in FIG. 11 (B)), it is elastically engaged with the edge portion on one end side of the shaft member 15 of the concave portion 31 of the bracket portion 30 (see FIG. (See FIG. 10C).

The abutting portion 43 of the bearing member 4 moves the bearing member 4 from the other end of the shaft member 15 to the recess 31 of the shaft member 15 and the bracket portion 30 (FIG. 9B, FIG. 10). (B), when mounted (in the direction of the solid arrow in FIG. 11B), abuts against the edge of the recess 31 of the bracket portion 30 on the other end side of the shaft member 15 (FIG. 11). (See (C)).

The fitting recess 44 of the bearing member 4 has the bearing member 4 from the other end of the shaft member 15 to the recess 31 of the shaft member 15 and the bracket portion 30 (FIG. 9B, FIG. 10). (B), when fitted (in the direction of the solid arrow in FIG. 11B), is fitted to the fitting convex portion 33 of the bracket portion 30 (see FIG. 9C).

  The holder 6 has a plate shape having an upper fixing surface and a lower fixing surface. The holder 6 is made of, for example, a resin member or a metal member having a high thermal conductivity. The heat sink member 7 has a trapezoidal shape having an upper fixing surface in the upper part, and has a fin shape from the middle part to the lower part. The heat sink member 7 is made of, for example, a resin member or a metal member having a high thermal conductivity.

  The fixed reflector 3, the upper movable reflector 13U, the lower movable reflector 13D, the upper semiconductor light source 5U, the lower semiconductor light source 5D, the holder 6, the heat sink member 7, and the driving device 14 are a lamp unit. Configure. That is, the fixed reflector 3 is fixedly held on the holder 6 by a screw 60 or the like. The upper movable reflector 13U and the lower movable reflector 13D are attached to the holder 6 so as to be rotatable about a horizontal axis X via the bracket portion 30, the shaft member 15, and the bearing member 4. The upper semiconductor light source 5U is fixedly held on the upper fixing surface of the holder 6. The lower semiconductor light source 5D is fixedly held on the lower fixing surface of the holder 6. The holder 6 is fixed and held on the upper fixing surface of the heat sink member 7 by a screw 60 or the like. The driving device 14 is fixedly held on the upper fixing surface of the holder 6 and the heat sink member 7 via a bracket portion 30 of the fixing member.

  The lamp units 3, 5U, 5D, 6, 7, 13U, 13D, and 14 are disposed, for example, via an optical axis adjusting mechanism in a lamp chamber defined by the lamp housing and the lamp lens. In addition to the lamp units 3, 5U, 5D, 6, 7, 13U, 13D, and 14, other lamp units such as fog lamps, cornering lamps, clearance lamps, and turn signal lamps are disposed in the lamp chamber. There may be.

  The upper reflective surface 2U of the fixed reflector 3, the upper reflective surface 12U of the upper movable reflector 13U, and the upper semiconductor light source 5U constitute an upper unit in which the light emitting surface of the light emitting chip 4 is upward in the vertical axis direction. To do. The lower reflective surface 2D of the fixed reflector 3, the lower reflective surface 12D of the lower movable reflector 13D, and the lower semiconductor light source 5D are such that the light emitting surface of the light emitting chip 4 faces downward in the vertical axis direction. Constitutes the lower unit. The upper units 2U, 5U, 12U, and 13U and the lower units 2D, 5D, 12D, and 13D are arranged so as to be in a point-symmetric state. The reflective surface design of the upper reflective surfaces 2U and 12U and the reflective surface design of the lower reflective surfaces 2D and 12D are not mere point symmetry (inversion).

  The fixed reflector 3 is made of, for example, a light impermeable resin member. The fixed reflector 3 has a substantially paraboloidal shape with the axis passing through the point-symmetric point as a rotation axis. The front side of the fixed reflector 3 is opened in a substantially circular shape. On the other hand, the rear side of the fixed reflector 3 is closed. A horizontally elongated substantially rectangular window 8 is provided in the middle of the closed portion of the fixed reflector 3. The holder 6 is inserted into the window portion 8 of the fixed reflector 3. The fixed reflector 3 is fixedly held by the holder 6 on the outer side (rear side) of the closing portion.

  The upper reflection surface 2U and the lower reflection surface 2D are provided on the upper side and the lower side of the window portion 8 on the inner side (front side) of the closed portion of the fixed reflector 3, respectively. The upper reflecting surface 2U and the lower reflecting surface 2D made of parabolic free-form surfaces (NURBS curved surfaces) have a reference focus (pseudo focus) and a reference optical axis (pseudo optical axis). Non-reflective surfaces 9 are provided between the upper reflective surface 2U and the lower reflective surface 2D and on both the left and right sides of the window portion 8 inside (front side) the closed portion of the fixed reflector 3. ing.

  The upper reflective surface 2U and the lower reflective surface 2D of the fixed reflector 3 are a low-beam reflective surface that forms the low-beam light distribution pattern LP and the dimming low-beam light distribution pattern LP1, and the first high-beam reflective surface. The first high beam reflecting surface and the second high beam reflecting surface that form the light distribution pattern HP1 and the second high beam light distribution pattern HP2.

  The driving device 14 includes a motor (not shown), a driving force transmission mechanism 16, and a movable reflector return spring (not shown). The motor is fixed and held directly on the upper fixing surface of the heat sink member 7. Thereby, the heat generated when the motor is energized can be radiated (heat radiated) to the outside by the heat sink member 7. The driving force transmission mechanism 16 is provided between the motor and the upper movable reflector 13U and the lower movable reflector 13D. The driving device 14 is configured to move the upper movable reflector 13U and the lower movable reflector 13D around the horizontal axis X with respect to the holder 6 at a first position (position shown in FIGS. 2 and 4). It is rotated between the second position (the position shown in FIGS. 3 and 5).

  The upper movable reflector 13U and the lower movable reflector 13D are made of, for example, a light-impermeable resin member. The upper movable reflector 13U and the lower movable reflector 13D located at the second position have a substantially paraboloidal shape with the axis passing through the point-symmetric point as a rotation axis. The front sides of the upper movable reflector 13U and the lower movable reflector 13D located at the second position are opened in a substantially circular shape. The size of the opening on the front side of the upper movable reflector 13U and the lower movable reflector 13D, that is, the opening area, is smaller than the size of the opening on the front side of the fixed reflector 3, that is, the opening area.

  A semicircular through hole 17 is provided in the center of each of the upper movable reflector 13U and the lower movable reflector 13D. In addition, rectangular flanges 18 are integrally provided at intermediate portions of the peripheral portions of the upper movable reflector 13U and the lower movable reflector 13D. The upper reflective surface 12U and the lower reflective surface 12D are respectively provided on the surfaces of the upper movable reflector 13U and the lower movable reflector 13D that face the upper semiconductor light source 5U and the lower semiconductor light source 5D. Is provided. The upper reflecting surface 12U and the lower reflecting surface 12D, which are parabolic free-form surfaces (NURBS curved surfaces), have a reference focus (pseudo focus) and a reference optical axis (pseudo optical axis).

  The upper reflective surface 2U of the upper movable reflector 13U and the lower reflective surface 2D of the lower movable reflector 13D are configured by a third high beam reflective surface that forms the third high beam light distribution pattern HP3. .

  The semiconductor-type light sources 5U and 5D include a substrate, the light-emitting chip provided on the substrate, and a sealing resin member that seals the light-emitting chip. The light emitting chip 4 is formed by arranging a plurality of square chips in the horizontal axis X direction. A single rectangular chip may be used.

  The center of the light emitting chip is located at or near the reference focal point of the reflecting surfaces 2U, 2D, 12U, and 12D and on the reference optical axis of the reflecting surfaces 2U, 2D, 12U, and 12D. The light emitting surface of the light emitting chip (the surface opposite to the surface facing the substrate) is oriented in the vertical axis direction. That is, the light emitting surface of the light emitting chip of the upper semiconductor light source 5U faces upward in the vertical axis direction. On the other hand, the light emitting surface of the light emitting chip of the lower semiconductor light source 5D faces downward in the vertical axis direction. Further, the long side of the light emitting chip is parallel to the horizontal axis X orthogonal to the reference optical axis and the vertical axis. The horizontal axis X is the center of the light emitting chip or the vicinity thereof (between the center of the light emitting chip and the long side on the rear side of the light emitting chip, and in this example, the long side on the rear side of the light emitting chip) Or the reference focal point of the reflecting surfaces 2U, 2D, 12U, 12D or the vicinity thereof.

  The horizontal axis X, the vertical axis, and the reference optical axis constitute an orthogonal coordinate (XYZ orthogonal coordinate system) with the center of the light emitting chip as the origin. In the horizontal axis X, in the case of the upper units 2U, 5U and 12U, the right side is the + direction, the left side is the-direction, and in the case of the lower units 2D, 5D and 12D, the left side is the + direction. And the right side is the-direction. In the vertical axis, in the case of the upper units 2U, 5U and 12U, the upper side is the + direction, the lower side is the-direction, and in the case of the lower units 2D, 5D and 12D, the lower side is the + direction. The upper side is the-direction. In the reference optical axis, the upper units 2U and 5U and the lower units 2D and 5D have a front side in the + direction and a rear side in the-direction.

  The reflecting surfaces 2U and 2D of the fixed reflector 3 and the reflecting surfaces 12U and 12D of the movable reflectors 13U and 13D are configured by parabolic free-form surfaces (NURBS curved surfaces). The reference focal points of the reflecting surfaces 2U and 2D of the fixed reflector 3 and the reference focal points of the reflecting surfaces 12U and 12D of the movable reflectors 13U and 13D are coincident or substantially coincide with each other on the reference optical axis, It is located between the center of the light emitting chip and the long side on the rear side of the light emitting chip, and in this example, it is located on the long side on the rear side of the light emitting chip. The reference focal lengths of the reflecting surfaces 2U and 2D of the fixed reflector 3 are larger than the reference focal lengths of the reflecting surfaces 12U and 12D of the movable reflectors 13U and 13D.

  The reference optical axes of the reflecting surfaces 2U and 2D of the fixed reflector 9 and the reference optical axes of the reflecting surfaces 12U and 12D of the movable reflectors 13U and 13D when positioned at the second position are coincident or substantially coincided with each other. Further, it is orthogonal to the horizontal axis X and further passes through the center of the light emitting chip or the vicinity thereof. The reference optical axes of the reflecting surfaces 12U and 12D of the movable reflectors 13U and 13D are the reference lights of the reflecting surfaces 2U and 2D of the fixed reflector 3 from the center of the light emitting chip or the vicinity thereof toward the front. It is upward with respect to the axis.

  When the movable reflectors 13U and 13D are located at the first position, the light emitted from the light emitting chip to the first high beam reflecting surface of the fixed reflector 3 and the second high beam for the fixed reflector 3 The reflected light reflected by the reflecting surface is shielded by the movable reflectors 13U and 13D. As a result, the reflected light reflected by the low beam reflecting surface of the fixed reflector 3 is irradiated to the front of the vehicle as the low beam light distribution pattern LP (passing light distribution pattern) shown in FIG.

  When the movable reflectors 13U and 13D are positioned at the second position, the reflected light reflected by the third high beam reflecting surfaces (the reflecting surfaces 12U and 12D) of the movable reflectors 13U and 13D is shown in FIG. As the third high beam light distribution pattern HP3, the reflected light reflected by the first high beam reflective surface and the second high beam reflective surface of the fixed reflector 3 is the first high beam light distribution pattern shown in FIG. As HP1, the second high beam light distribution pattern HP2, and the reflected light reflected by the low beam reflection surface of the fixed reflector 3 as the dimming low beam light distribution pattern LP1 shown in FIG. Irradiated forward. As shown in FIG. 7, the first high beam light distribution pattern HP1, the second high beam light distribution pattern HP2, the third high beam light distribution pattern HP3, and the dimming low beam light distribution pattern LP1 are used. A light distribution pattern (running light distribution pattern) is formed and irradiated to the front of the vehicle.

  When the movable reflectors 13U and 13D are positioned at the second position, a part of light emitted from the light emitting chip to the low-beam reflecting surface of the fixed reflector 3 is shielded by the movable reflectors 13U and 13D. And it is reflected as reflected light by the third high beam reflecting surfaces (the reflecting surfaces 12U and 12D) of the movable reflectors 13U and 13D. That is, part of the light from the light emitting chip is switched from the dimming low beam light distribution pattern LP1 to the third high beam light distribution pattern HP3. For this reason, the light quantity of the dimming low beam light distribution pattern LP1 shown in FIG. 7 is smaller than the light quantity of the low beam light distribution pattern LP shown in FIG. On the other hand, when the movable reflectors 13U and 13D are positioned at the first position, the light from the light emitting chip that has been shielded by the movable reflectors 13U and 13D is the first high-beam light distribution pattern HP1 and the second light distribution pattern HP1. It is used as a high beam light distribution pattern HP2. At this time, the reflecting surfaces 12U and 12D of the movable reflectors 13U and 13D are located in a high energy range in the energy distribution of the light emitting chip. As a result, the light quantity of the high beam light distribution pattern (running light distribution pattern) HP1, HP2, HP3, LP1 shown in FIG. 7 is the same as the low beam light distribution pattern (passing light distribution pattern) shown in FIG. ) It becomes larger than the light quantity of LP.

  The reflective surfaces 2U and 2D are divided into eight parts in the vertical axis direction, and the two segments 21, 22, 23, 24, 25, 26, each having two central parts divided in the horizontal axis X direction, 27, 28, 29, and 20. The second segment 22, the third segment 23, the fourth segment 24, the fifth segment 25, the sixth segment 26, and the seventh segment 27 in the central portion and the peripheral portion constitute the low beam reflecting surface. The first segment 21 and the eighth segment 28 at both ends constitute the first high beam reflecting surface. Further, the ninth segment 29 and the tenth segment 20 at the center constitute the second high beam reflecting surface.

  In the low beam reflection surface, the fourth segment 24 in the center portion constitutes a first reflection surface. Further, the fifth segment 25 in the center portion constitutes a second reflecting surface. Furthermore, the second segment 22, the third segment 23, the sixth segment 26, and the seventh segment 27 at the end constitute a third reflecting surface.

  The fourth segment 24 of the central first reflection surface and the fifth segment 25 of the second reflection surface are provided within a range of a longitude angle of ± 40 ° from the center of the light emitting chip. The second segment 22, the third segment 23, the sixth segment 26, and the seventh segment 27 of the third reflecting surface at the end are within a range of a longitude angle of ± 40 ° or more from the center of the light emitting chip. Is provided.

  Hereinafter, the assembly process of the lamp unit of the automotive headlamp 1 will be briefly described. First, the holder 6 and the heat sink member 7 are fixed and held by a screw 60 or the like. Meanwhile, the driving device 14 is fixedly held by the bracket portion 30. One end portion of the shaft member 15 integral with the upper movable reflector 13U and one end portion of the shaft member 15 integral with the lower movable reflector 13D are attached to the driving device 14, respectively.

  Next, the other end portion of the shaft member 15 is positioned in the concave portion 31 of the bracket portion 30 through the opening portion 32 of the bracket portion 30 (FIGS. 9A, 9B, and 10). (See (A), FIG. 10 (B), FIG. 11 (A), and FIG. 11 (B)). In this state, the bearing member 4 is inserted into the other end portion of the shaft member 15 and the concave portion 31 of the bracket portion 30 from the elastic engagement portion 42 of the bearing member 4 and from the other end of the shaft member 15 to one end. (See FIG. 9B, FIG. 10B, and FIG. 11B). At this time, when the elastic engagement portion 42 of the bearing member 4 passes through the inner peripheral surface of the concave portion 31 of the bracket portion 30, as shown by a solid arrow in FIG. Deform. Here, since the inner diameter of the bearing member 4 on the one end side of the insertion hole 40 is larger than the inner diameter on the other end side of the insertion hole 40, the shaft member 15 is inserted into the insertion hole 40 of the bearing member 4. Even in a state in which is inserted, there is no hindrance to elastic deformation of the elastic engagement portion 42 provided on one end side of the bearing member 4. That is, the inner diameter of the bearing member 4 on the one end side of the insertion hole 40 has a bending allowance for elastically deforming the elastic engagement portion 42.

  Then, the elastic engagement portion 42 of the bearing member 4 is elastically engaged with the edge portion on the one end side of the shaft member 15 of the concave portion 31 of the bracket portion 30 (see FIG. 10C). The abutting portion 43 of the bearing member 4 abuts on an edge of the concave portion 31 of the bracket portion 30 on the other end side of the shaft member 15 (see FIG. 11C), and further, the bearing member 4 The fitting concave portion 44 is fitted into the fitting convex portion 33 of the bracket portion 30 (see FIG. 9C). At this time, the other end portion of the shaft member 15 is rotatably supported by the inner peripheral surface of the insertion hole 40 having a small inner diameter of the bearing member 4.

  As a result, the upper movable reflector 13U and the lower movable reflector 13D are rotatably attached to the bracket portion 30 via the shaft member 15 and the bearing member 4. Thus, the upper movable reflector 13U, the lower movable reflector 13D, the bracket portion 30, the shaft member 15, the bearing member 4, and the drive device 14 are sub-assembled (subunitized).

  Then, the bracket portion 30 sub-assembled to the holder 6 and the heat sink member 7 is fixedly held by a screw 60 or the like. Further, the fixed reflector 3 is fixedly held by the holder 6 and the heat sink member 7 with a screw 60 or the like. Thereby, the assembly process of the lamp unit of the automotive headlamp 1 is completed.

  Hereinafter, the vehicle headlamp 1 according to this embodiment has the above-described configuration, and the operation thereof will be described below.

  First, the upper movable reflector 13U and the lower movable reflector 13D are positioned at the first position (the position shown in FIGS. 2 and 4). That is, when energization of the motor of the drive device 14 is interrupted, the upper movable reflector 13U and the lower movable reflector 13D are positioned at the first position by the action of the spring and the action of a stopper (not shown). At this time, the light emitting chips 4 of the upper semiconductor light source 5U and the lower semiconductor light source 5D are turned on. Then, light is emitted from the light emitting chips 4 of the upper semiconductor light source 5U and the lower semiconductor light source 5D.

  Part of this light, that is, the light emitted to the first high beam reflecting surfaces (first segment 21 and eighth segment 28) of the fixed reflector 3 is shielded by the upper movable reflector 13U and the lower movable reflector 13D. . Further, a part of this light, that is, the reflected light reflected by the second high beam reflecting surface (the ninth segment 29 and the tenth segment 20) of the fixed reflector 3 is reflected by the upper movable reflector 13U and the lower movable reflector 13D. Shielded. Further, the remaining light is reflected by the low-beam reflecting surfaces (the second segment 22, the third segment 23, the fourth segment 24, the fifth segment 25, the sixth segment) of the upper reflecting surface 2U and the lower reflecting surface 2D of the fixed reflector 3. 26, reflected by the seventh segment 27). This reflected light is irradiated in front of the vehicle as a low beam light distribution pattern LP shown in FIG. In addition, direct light (not shown) from the light emitting chip 4 of the upper semiconductor type light source 5U and the lower semiconductor type light source 5D is shielded by the upper movable reflector 13U and the lower movable reflector 13D, particularly the flange portion 18.

  As described above, the low beam light distribution pattern LP shown in FIG. 6 is irradiated in front of the vehicle.

  Next, the upper movable reflector 13U and the lower movable reflector 13D are positioned at the second position (the position shown in FIGS. 3 and 5). That is, when the motor of the driving device 14 is energized to drive the motor, the driving force of the motor is transmitted to the upper movable reflector 13U and the lower movable reflector 13D via the driving force transmission mechanism 16, and the upper movable reflector 13U and The lower movable reflector 13D rotates in synchronization with the second position against the spring force and is positioned at the second position by the action of a stopper (not shown). At this time, the light emitting chips 4 of the upper semiconductor light source 5U and the lower semiconductor light source 5D are turned on. Then, light is emitted from the light emitting chips 4 of the upper semiconductor light source 5U and the lower semiconductor light source 5D.

  A part of this light, which is a low-beam reflecting surface (second segment 22, third segment 23, fourth segment 24, fifth segment 25, second segment 25D) of the upper reflector 2U and the lower reflector 2D of the fixed reflector 3. A part of the light emitted to the sixth segment 26 and the seventh segment 27) is reflected by the third high beam reflecting surfaces (reflecting surfaces 12U and 12D) of the movable reflectors 13U and 13D, and the reflected light is shown in FIG. A third high beam light distribution pattern HP3 shown is irradiated in front of the vehicle. Also, the low-beam reflective surfaces (the second segment 22, the third segment 23, the fourth segment 24, the fifth segment 25, the sixth segment 26, the seventh segment) of the upper reflector 2U and the lower reflector 2D of the fixed reflector 3 27), the remaining light that has not entered the third high beam reflecting surfaces (reflecting surfaces 12U, 12D) of the movable reflectors 13U, 13D is reflected on the low beam reflecting surface (first one) of the fixed reflector 3. 2 segment 22, third segment 23, fourth segment 24, fifth segment 25, sixth segment 26, seventh segment 27), and the reflected light is a dimming low beam light distribution pattern LP1 shown in FIG. As shown in FIG. Further, when the upper movable reflector 13U and the lower movable reflector 13D are positioned at the first position, the first high beam reflecting surface of the fixed reflector 3 that is shielded by the upper movable reflector 13U and the lower movable reflector 13D ( The light emitted to the first segment 21 and the eighth segment 28) is reflected by the first high beam reflecting surface (the first segment 21 and the eighth segment 28) of the fixed reflector 3, and the reflected light is shown in FIG. The first high beam light distribution pattern HP1 shown is irradiated in front of the vehicle. Furthermore, when the upper movable reflector 13U and the lower movable reflector 13D are located at the first position, the second high beam reflecting surface of the fixed reflector 3 that is shielded by the upper movable reflector 13U and the lower movable reflector 13D. The reflected light from (the ninth segment 29 and the tenth segment 20) passes through the through holes 17 of the upper movable reflector 13U and the lower movable reflector 13D located at the second position, and is distributed for the second high beam shown in FIG. The light pattern HP2 is irradiated in front of the vehicle.

  As described above, the high beam light distribution patterns HP1, HP2, HP3, and LP1 shown in FIG.

  The vehicle headlamp 1 in this embodiment has the above-described configuration and operation, and the effects thereof will be described below.

  In the vehicle headlamp 1 in this embodiment, the other end portion of the shaft member 15 integrated with the upper movable reflector 13U and the lower movable reflector 13D is positioned in the recess 31 from the opening 32 of the bracket portion 30 (FIG. 9 ( A), FIG. 9 (B), FIG. 10 (A), FIG. 10 (B), FIG. 11 (A), FIG. 11 (B)), and in this state, the bearing member 4 is connected to the other end of the shaft member 15. And the other end of the shaft member 15 are attached to the recess 31 of the bracket portion 30 and the bracket portion 30 (see FIGS. 9B, 10B, and 11B). Then, the elastic engagement portion 42 of the bearing member 4 is elastically engaged with the edge portion on one end side of the shaft member 15 of the concave portion 31 of the bracket portion 30 (see FIG. 10C), and the bearing member 4 becomes the shaft member. Movement from one end of 15 to the other end (see solid arrow in FIG. 10C) is restricted. Further, the abutting portion 43 of the bearing member 4 abuts on the edge of the recess 31 of the bracket portion 30 on the other end side of the shaft member 15 (see FIG. 11C), and the bearing member 4 of the shaft member 15 The movement from the other end to the one end (see the solid line arrow in FIG. 11C) is restricted. Further, the fitting concave portion 44 of the bearing member 4 is fitted to the fitting convex portion 33 of the bracket portion 30 (see FIG. 9C), and the bearing member 4 rotates about the central axis X of the shaft member 15. (See solid arrow in FIG. 9C) is restricted. As a result, in the vehicle headlamp 1 in this embodiment, the movement and rotation of the bearing member 4 in three directions are restricted, so that the bearing member 4 can be securely attached to the bracket portion 30, and the bearing member 4 It is possible to reliably prevent the bracket portion 30 from falling off.

  For example, if the bearing member 4 is rotatable with respect to the bracket portion 30, the bearing member 4 moves with respect to the bracket portion 30 as the shaft member 15 integrated with the upper movable reflector 13U and the lower movable reflector 13D rotates. May rotate. In this case, the bearing member 4 may rotate with respect to the bracket portion 30, and the bearing member 4 may drop from the bracket portion 30 through the opening portion 32 from the recess portion 31 of the bracket portion 30. On the other hand, in the vehicle headlamp 1 in this embodiment, since the bearing member 4 cannot rotate with respect to the bracket portion 30, the shaft member 15 integrated with the upper movable reflector 13U and the lower movable reflector 13D is used. The bearing member 4 does not rotate with respect to the bracket portion 30 even if the shaft rotates, and as a result, the bearing member 4 falls out of the bracket portion 30 from the concave portion 31 of the bracket portion 30 through the opening 32. There is no.

  Further, the vehicle headlamp 1 in this embodiment is provided with an elastic engagement portion 42 and a fitting recess 44 of the bearing member 4 so as to face each other in the direction in which the molding dies 10 and 11 of the bearing member 4 are removed. Since the bearing member 4 can be manufactured without using a slide mold, the mold cost can be reduced, and the manufacturing cost can be reduced accordingly. That is, when the elastic engagement portion 42 and the fitting recess 44 of the bearing member 4 are not opposed to the drawing direction of the molding dies 10 and 11 of the bearing member 4, In order to form a recess between the shape contact portion 43, a slide mold (a mold that slides in a direction perpendicular to the direction in which the molding dies 10 and 11 are pulled out) is required. However, the vehicle headlamp 1 in this embodiment is provided with the elastic engagement portion 42 and the fitting recess 44 of the bearing member 4 so as to face each other in the direction in which the molding dies 10 and 11 of the bearing member 4 are removed. Since it is a thing, a slide mold is unnecessary.

  Further, in the vehicle headlamp 1 in this embodiment, the driving device 14 is fixedly held on the bracket portion 30, and the upper movable reflector 13 </ b> U and the lower movable reflector 13 </ b> D are attached to the bracket portion 30 with the shaft member 15 and the bearing member 4. The bracket 30, the drive device 14, the upper movable reflector 13 </ b> U, the lower movable reflector 13 </ b> D, the shaft member 15, and the bearing member 4 can be used as subassemblies (subunits). As a result, in the vehicle headlamp 1 in this embodiment, the bracket unit 30 is fixedly held to the holder 6 and the heat sink member 7, so that the sub-assembly drive device 14, the upper movable reflector 13 </ b> U, the lower movable reflector 13 </ b> D, Since the shaft member 15 and the bearing member 3 can be easily attached to the holder 6 and the heat sink member 7 via the bracket portion 30, the assembling workability can be improved and the assembling man-hour can be reduced. The manufacturing cost can be reduced accordingly.

  In addition, in the said Example, the example used for the vehicle headlamp 1 is demonstrated. However, in this invention, it can also be used for a vehicle rotating device other than the vehicle headlamp 1. For example, it can also be used for an optical axis adjusting device that adjusts the optical axis in the vertical and horizontal directions, and a swivel device that swivels the lamp unit.

  Moreover, in the said Example, the example which rotates the upper movable reflector 13U and the lower movable reflector 13D is demonstrated. However, in this invention, it can be used also for rotating members other than the upper movable reflector 13U and the lower movable reflector 13D. For example, a shade that blocks light, a lens that transmits light, or the like can be used as the rotating member.

  Furthermore, in the said Example, the example which uses the bracket part 30 of a fixing member is demonstrated. However, in the present invention, the rotating member may be rotatably attached to the fixed member via the shaft member and the bearing member without using the bracket portion 30.

  Furthermore, in the above-described embodiment, the fitting portion of the fixing member is the fitting convex portion 33, and the fitting portion of the bearing member 4 is the fitting concave portion 44. However, in the present invention, the fitting portion of the fixing member may be a fitting concave portion, and the fitting portion of the bearing member 4 may be a fitting convex portion. A fitting convex part and a fitting concave part may be used, and the fitting part of the bearing member 4 may be a fitting concave part and a fitting convex part.

  Furthermore, the shape, number, location, etc. of the fitting convex portion 33 of the fitting portion of the fixing member and the fitting concave portion 44 of the fitting portion of the bearing member 4 are not particularly limited. Further, the shape, number and location of the elastic fitting 42 and the contact portion 43 of the bearing member 4 are not particularly limited.

DESCRIPTION OF SYMBOLS 1 Vehicle headlamp 2U Upper reflective surface 2D Lower reflective surface 3 Fixed reflector (fixing member, fixed part)
30 Bracket part (fixing member)
31 concave portion 32 opening 33 fitting convex portion 4 bearing member 40 insertion hole 41 kerf 42 elastic engagement portion 43 abutting portion 44 fitting concave portion 5U upper semiconductor light source 5D lower semiconductor light source 6 holder (fixing member, fixing) Part)
7 Heat sink member (fixing member, fixing part)
8 Window 9 Non-reflective surface 10 Mold 11 Mold 12U Upper reflective surface (3rd high beam reflective surface)
12D Lower reflective surface (3rd high beam reflective surface)
13U Upper movable reflector (rotating member)
13D Lower movable reflector (rotating member)
DESCRIPTION OF SYMBOLS 14 Drive apparatus 15 Shaft member 16 Driving force transmission mechanism 17 Through-hole 18 ridge part 21 1st segment (1st high beam reflective surface)
22 Second segment (low beam reflecting surface, third reflecting surface)
23 Third segment (low beam reflective surface, third reflective surface)
24 4th segment (low beam reflecting surface, first reflecting surface)
25 Fifth segment (low beam reflecting surface, second reflecting surface)
26 Sixth segment (low beam reflecting surface, third reflecting surface)
27 7th segment (low beam reflective surface, third reflective surface)
28 8th segment (first high beam reflective surface)
29 9th segment (2nd high beam reflecting surface)
20 10th segment (second high beam reflective surface)
60 Screw E Elbow point CL1 Oblique cut-off line CL2 Horizontal cut line LP Low beam light distribution pattern LP1 Dimming low beam light distribution pattern HP1 First high beam light distribution pattern HP2 Second high beam light distribution pattern HP3 Third high beam light distribution Pattern HL-HR Horizontal lines on the left and right of the screen VU-VD Vertical lines on the top and bottom of the screen X Center axis (horizontal axis)

Claims (2)

In the vehicular rotating device that rotates the rotating member with respect to the fixed member by the driving device,
A fixing member;
A rotating member provided integrally with the shaft member and rotatably attached to the fixed member via the shaft member;
A driving device that is fixedly held by the fixing member, one end of the shaft member is attached, and the rotating member is rotated with respect to the fixing member via the shaft member;
A bearing member rotatably supporting the other end of the shaft member on the fixed member;
With
The fixing member is provided with a recess where the other end of the shaft member is located, and an opening for positioning the other end of the shaft member in the recess,
Said bearing member, said bearing member when attached to the one end from the other end of the shaft member in the recess of the shaft member and the fixing member, one end side of the edge of the shaft member of said recess of said stationary member An elastic engagement portion that elastically engages with a portion, and an abutment portion that abuts on an edge portion on the other end side of the shaft member of the concave portion of the fixing member,
Wherein an edge of the concave portion of the fixing member is not fitting projection is provided on the said bearing member, the fitting recess is provided, the fitting projection and the fitting recess, When the bearing member is mounted in the recess of the shaft member and the fixing member from one end to the other end of the shaft member, the shaft member is fitted to each other and the shaft member rotates around the central axis of the shaft member. a fitting portion for preventing,
The elastic engagement portion is provided on one end side of the bearing member, and the contact portion and the fitting recess are provided on the other end side of the bearing member, respectively. The engaging portion and the fitting concave portion are provided to face each other in the drawing direction of the molding die of the bearing member .
A vehicular rotating device. The fixing member is composed of a fixing portion and a bracket portion,
The bracket portion is provided with the recess, the opening, and the fitting portion, respectively.
The bracket is fixedly held by the drive unit, and the rotating member is rotatably attached via the shaft member and the bearing member,
The bracket portion is fixedly held by the fixing portion,
The vehicular rotating device according to claim 1, wherein

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