• 专利附录
  • 专利说明
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    • 专利摘要:
    A vehicle headlamp (1) comprises a lamp unit (7) including a light source (13) and disposed within an outer lamp housing (4), an actuating device (43) including a control shaft (45) and being detachable from a certain part, a hinge (46, 46A) including a coupling part (48, 48A) and detachable from the lamp unit (7), the part of wherein the coupling (48, 48A) is coupled to the control shaft (45) in a state in which the hinge (46, 46A) is attached to the lamp unit (7). The lamp unit (7) has a plurality of unit configuration portions including the light source (13). The lamp unit (7) is shaped with a communication space (7a) which is open at least downwards. At least one of the configuration portions of the unit can be withdrawn at least down through the communication space (7a) into a state in which the actuating device (43) has been detached from the certain part and the hinge (46, 46A) has been detached from the lamp unit (7).
    公开号:FR3015634A1
    申请号:FR1462946
    申请日:2014-12-19
    公开日:2015-06-26
    发明作者:Hiroyuki Kikuchi；Teppei Muramatsu；Masayuki Kondo；Shigeru Kuwahara
    申请人:Koito Manufacturing Co Ltd；
    IPC主号:
    专利说明:

    [0001] BACKGROUND OF THE INVENTION FIELD OF THE INVENTION The present invention relates to a vehicle headlight including an actuating device that tilts a lamp unit to modify the optical axis of a light source, and a hinge with a coupling portion coupled to a control shaft of the actuating device. Patent Document 1: JP-A-2010-108869 Patent Document 2: 3P-A-2013-20935 ASSOCIATED TECHNIQUE Among the vehicle headlights there is a type in which, for example, a lamp unit including a light source is disposed within an outer lamp housing configured by a cover and a lamp housing, the lamp unit is supported so as to be able to tilt (tilted) by the lamp housing via a support body such as a frame and the lamp unit can be tilted by means of a control force from the actuating device (see for example patent document 1). In addition to the light source, such lamp units are configured by a plurality of lamp unit configuration parts including, for example, a projection lens which illuminates with light, a lens holder which holds the projection lens, a light source control section such as a control module including a light source control circuit and a radiator fan which rotates when the light source is controlled (see for example the patent document 1 and the document patent 2). In vehicle lamps such as those described above, the replacement or repair of configuration parts of the lamp unit sometimes becomes necessary due to a failure or deterioration of configuration parts of the lamp unit. 'unit. In such cases, it is necessary to remove the configuration part of the unit in question. The vehicle headlamp described in Patent Document 2 is configured to allow rearward removal of a control module (light emitting module) during replacement or repair of configuration parts of the vehicle. unit. However, since various other structures such as an actuator, are disposed within the outer casing of the lamp in addition to the lamp unit, the positioning locations of these other configuration portions of the unit. may interfere with the removal of the configuration portion of the unit requiring replacement or repair.
    [0002] In addition, depending on the positioning locations of the configuration portions of the unit, it may be difficult to remove the configuration parts of the unit from behind. SUMMARY OF THE INVENTION Embodiment examples provide a vehicle headlamp in which a removal operation of a configuration portion of the unit requiring replacement or repair can be performed smoothly, without the operation of removal is hindered by the positioning locations of other structures.
    [0003] A vehicle headlight according to an exemplary embodiment of the invention comprises: a lamp unit including a light source and disposed within an outer lamp housing, the outer lamp housing including a lamp housing with an opening and a cover covering the opening of the lamp housing; an actuating device including a control shaft and releasable from a certain portion, the actuating device being configured to communicate a control force to the lamp unit for tilting the lamp unit and changing the lamp unit; optical axis of the light source; a hinge including a coupling portion and detachable from the lamp unit, the coupling portion being coupled to the control shaft in a state in which the hinge is attached to the lamp unit, wherein: the lamp unit has a plurality of unit configuration portions including the light source, the lamp unit is shaped with a communication space that is open at least downward, and at least one of the parts The unit configuration can be removed at least down through the communication space in a state in which the actuating device has been detached from the certain part and the joint has been detached from the unit. lamp. As a result, the specific configuration part of the unit can be pulled down by detaching the actuator from the certain part and detaching the joint from the lamp unit.
    [0004] The vehicle headlight may further comprise: a frame including an attachment portion of the actuator which constitutes the certain portion, the frame being configured to support the lamp unit so as to be able to tilt, wherein: attachment of the actuating device is in the form of a frame including an insertion space pierced in a high-low direction, the insertion space being below the communication space and in communication therewith, and said at least a portion of the unit configuration portions can be withdrawn down through the communication space and the insertion space. As a result, both the lamp unit and the actuator are hinged to the frame. The vehicle headlight may further comprise: a control module including a control circuit of the light source; and a radiator fan configured to rotate at least when the light source is controlled, wherein: said at least a portion of the configuration portions of the unit is comprised of the control module and the radiator fan. As a result, configuration parts of the unit can be removed with high replacement requirements. The vehicle headlight may further include: a support member configured to rotatably support the radiator fan and attached to the control module. As a result, the control module and the radiator fan can be removed at the same time.
    [0005] The hinge and the lamp unit can rotate together depending on the rotation of the drive shaft, the hinge can have a stop contact portion, and the frame can have a stop positioned outside the hinge. insertion space and configured to limit rotation of the lamp unit by contact of the abutment contact portion during rotation of the joint. As a result, the stop and the configuration portion of the unit do not interfere with each other during removal of the configuration portion of the unit. According to the exemplary embodiments of the invention, the specific configuration part of the unit can be pulled down by detaching the actuator from the certain part, and detaching the articulation from the unit of lamp, so that a removal operation of a configuration part of the unit requiring replacement or repair can be performed smoothly, without the removal operation being impeded by the positioning locations of others structures.
    [0006] BRIEF DESCRIPTION OF THE DRAWINGS The invention will be better understood and its advantages will be better understood on reading the detailed description which follows. The description refers to the following drawings, which are given by way of example.
    [0007] Figure 1 is a schematic vertical section illustrating a vehicle headlight according to one embodiment of the invention; Fig. 2 is an exploded perspective view illustrating a lamp unit, etc. Fig. 3 is a perspective view illustrating the lamp unit, etc. Fig. 4 is an enlarged side view and a partial section illustrating a state in which a supported member of a coupling member is compressed by a holding spring. Fig. 5 is a bottom view of a lamp unit, etc., illustrating a state in which an actuating device has been detached.
    [0008] Fig. 6 is a schematic side view and a partial section illustrating a state in which the holding spring is inclined downwardly forward to insert a projection of insertion of a support part into a hole of insertion in a hinge face.
    [0009] Fig. 7 is a schematic side view and a partial section illustrating a temporarily fixed state in which a lower end portion of an anchor face is engaged with a temporary holding projection of the support portion. Figure 8 is a schematic side view and partial section illustrating a fixed state of the holding spring at the support portion. Fig. 9 is a perspective view illustrating a state in which an actuating device has been detached from a frame. Fig. 10 is a perspective view illustrating a state in which a hinge has been detached from a lamp unit.
    [0010] Fig. 11 is a perspective view illustrating a state in which a control module and a radiator fan have been detached from a mounting base. Fig. 12 is an exploded perspective view showing a modified example of frame and hinge.
    [0011] Fig. 13 is a perspective view illustrating the lamp unit, etc. Fig. 14 is a plan view illustrating a hinge, an actuator and a part of a frame in a state in which the tilting of a lamp unit is not limited.
    [0012] Fig. 15 is a plan view illustrating the hinge, the actuator and the frame portion in a state in which the tilting of the lamp unit is limited. DETAILED DESCRIPTION An explanation follows concerning an embodiment of a vehicle headlight according to the invention with reference to the accompanying drawings. Vehicle headlights 1 are attached to both the left and right ends of the front end section of a vehicle. As illustrated in FIG. 1, the vehicle headlamp 1 comprises a lamp housing 2 with a cavity open towards the front and a lid 3 which closes the opening of the lamp housing 2. The lamp housing 2 and the lid 3 configure a lamp outer casing 4 and a lamp chamber 5 is configured in a space located inside the lamp outer casing 4. A fixing aperture 2a is formed, penetrating the rear end portion of the lamp casing lamp 2 from front to back. A rear cover 6 is attached to the rear end portion of the lamp housing 2 to cover the attachment opening 2a. A lamp unit 7 is disposed within the lamp chamber 5 (see Fig. 1 to Fig. 3). The lamp unit 7 is configured by several unit configuration parts. The respective unit configuration portions comprise a fixing plate 8, a lens holder 9, a projection lens 10, a mounting base 11, a reflector 12, a light source 13, a control module 14, a radiator fan 15 and a coupling element 16.
    [0013] The fixing plate 8 is shaped substantially plate-shaped in the fore-aft direction and is configured as a frame. The fixing plate 8 acts as a fixed screen which blocks a part of the light emitted by the light source 13. An upper end portion of the fixing plate 8 is provided as the first fixing portion 8a, both left and right end portions of the attachment plate 8 are provided as second attachment portions 8b, 8b, and a lower end portion is provided as the third attachment portion 8c. The lens holder 9 has a cylindrical cylindrical portion 9a and coupling segments 9b, 9b protruding rearwardly from the two left and right side portions of the cylindrical portion 9a. The coupling segments 9b, 9b of the lens holder 9 are attached to the second fastening portions 8b, 8b of the fastening plate 8 by screw fastening or the like. The projection lens 10 is shaped substantially hemispherically projecting forward and is held in the lens holder by attaching a rear end portion of the projection lens 10 to the front end portion of the lens. the cylindrical portion 9a. The mounting base 11 is positioned on the rear side of the fixing plate 8. The front end portion of the mounting base 11 is provided with a fixed portion 17, and a rear end portion is provided with a mounting portion 18 (see Figure 1). The fixed portion 17 of the mounting base 11 is fixed to the rear face of the fixing plate 8. The mounting portion 18 has a light source installation face 18a turned in the up-down direction and radiator 18b, 18b, ..., projecting downward from the light source installation face 18a. Notches are formed in the radiator fins 18b, 18b. The light source 13 is installed on the light source installation face 18a of the mounting portion 18 with a circuit board 19 interposed therebetween. A light emitting diode (LED) for example is used as the light source 13. The control module 14 has a mounting block 20 and a control circuit 21 disposed on the upper face of the mounting block 20 (see FIG. 1 and Figure 2). The mounting block 20 is shaped in a laterally elongated form and is configured by a circuit installation face 20a turned in the up-down direction, radiator fins 20b, 20b projecting downward from the installation face. circuit 20a and fixing tabs 20c, 20c, protruding 20 outwards (outwardly) from both the left and right ends of the circuit installation face 20a. Notches are formed in the radiator fins 20b, 20b. The control circuit 21 has the ignition-off control function of the light source 13 and is electrically connected to the light source 13 by an unillustrated connection cord. The fixing tabs 20c, 20c of the control module 14 are fixed to the underside of the mounting base 11 from below, using fixing screws 100, 100. In the fixed state of the control module 14 to the mounting base 11, the notches formed in the radiator fins 20b, 20b of the control module 14 and the notches formed in the radiator fins 18b, 18b of the mounting base 11 form an opening mounting cavity towards the bottom 22 (see Figure 1). The radiator fan 15 has a shaft 23 and blades 24, 24 protruding from the outer peripheral face of the shaft 23. A supported shaft portion 23a is provided, projecting downwardly from the axial center of the shaft. shaft 23 (see Figure 1 and Figure 5). The radiator fan 15 is mounted in the mounting cavity 22 by means of a support member 25. The support member 25 is configured by a circular ring-shaped support portion 25a and hinge portions 25b, 25b protruding to the left and to the right from the support part 25a. The supported shaft portion 23a of the radiator fan 15 is inserted into the circular ring-shaped support portion 25a over it, so as to be rotatably supported by the support member 25. The hinge portions 25b 25b of the support member 25 are fixed to the underside of the mounting block 20 of the control module 14 from below using screw elements 200, 200. In a state in which the control module 14 is attached to the 11, and the radiator fan 15 and attached to the control module 14 as described above, a communication space 7a where the other unit configuration parts of the lamp unit 7 are not present , is formed in the lamp unit 7 below the control module 14 and the radiator fan 15 (see FIG. 1). The coupling member 16 is shaped into a laterally elongate shape and, as illustrated in FIG. 2, has a base 26, attachment portions 27, 27 protruding respectively to the (outer) sides of both the left ends. and right of the base 26, a shaft 28 protruding upwardly from the base 26 and a supported portion 29 disposed contiguously with the upper end of the shaft 28. The supported portion 29 is configured by means of a sliding portion 29a shaped in a substantially hemispherical shape protruding downwardly, a compressed projection 29b protruding upwardly from the sliding portion 29a and restricted projections 29c, 29c extending upwardly from the sliding portion 29a. The compressed projection 29b is shaped into a substantially hemispherical shape protruding upward and the restricted projections 29c, 29c are positioned to the left and right of the compressed projection 29b. The attachment portions 27, 27 of the coupling member 16 are attached to the first fastening portion 8a of the fastening plate 8 using screws 300, 300. It will be appreciated that the coupling member 16 can be formed. in one piece with the fixing plate 8. A movable screen and a screen control mechanism for operating the movable screen, none of which are illustrated in the drawings, are arranged between the fixing plate 8 and the light source 13. When the screen control mechanism actuates the moving screen, the amount of light emitted by the light source 13 which is blocked varies for example to switch between the light distribution patterns of fire road and low beam.
    [0014] The lamp unit 7 configured as described above is suspended from a frame 30 to be supported so that it can tilt (tilt) (see Figure 1 to Figure 4). The frame 30 is configured by an attachment portion of the frame-shaped actuator 31 which is pierced from top to bottom, coupling portions 32, 32 protruding outwardly (outward) from the two left and right side faces of the attachment portion 31 of the actuator, a column portion 33 protruding upwardly from one of the coupling portions 32 and a support 34 projecting outwardly from the upper end portion of the columnar portion 33.
    [0015] The attachment portion 31 of the actuator is provided with U-shaped projections 31a, 31a protruding outwardly in the left and right directions in positions towards the rear end of the attachment portion 31 of the device. actuation. The attachment portion 31 of the actuating device is also provided with projections 31b, 31b protruding from each other in the left-right direction. The attachment portion 31 of the actuating device is also provided with several attachment projections in respective specific positions. A space within the attachment portion 31 of the actuator forms an insertion space 35. The insertion space 35 is provided with a first laterally elongate withdrawal portion 35a at a portion to the front face projections 31b, 31b and a second withdrawal portion 35b larger than the first withdrawal portion 35a at a portion to the rear side projections 31b, 31b. The second withdrawal portion 31b is below the communication space 7a of the lamp unit 7 and is in communication therewith. Nut coupling holes 32a, 32a are formed, penetrating into the respective coupling portions 32, 32, from front to rear. Non-illustrated nut members are coupled to the nut coupling holes 32a, 32a in a state allowing up-down and left-right movement relative to the coupling portions 32, 32 and the Non-illustrated sights are screwed into the nut elements. A portion toward the rear end of each of the sighting screws is supported by the rear face of the lamp housing 2 in a state incapable of movement in the front-to-back direction but rotatable in an axial peripheral direction. A pivot coupling hole 33a is formed, penetrating into the upper end portion of the column portion 33 from front to back. An unillustrated pivot member is coupled to the pivot coupling hole 33a and the pivot member is supported at the rear face 15 of the lamp housing 2 so as to be able to tilt in a desired direction. The support 34 is positioned just above the attachment portion 31 of the actuating device and has a support portion 36 open towards the front. The inner face of the support portion 36 forms a bowl-shaped bearing face 36a turned outwardly while moving upwards. Insertion projections 36b, 36b are provided protruding forwardly on both the left and right sides of the bearing face 36a at the front face of the support portion 36. The upper end portion the rear end portion of the support portion 36 forms an inclined face 36c and a temporary holding projection 36d is provided on the inclined face 36c. The inclined face 36c is shaped in a sloped orientation facing upwards and backwards. An anchor projection 36e is provided at the rear face of the support portion 36. The anchor projection 36e has an inclined face, inclined downwardly to the rear, and an anchor face facing towards the rear. low. The lower edge of the inclined face is contiguous with the trailing edge of the anchoring face. A shaft bearing washer 37 is held in the support portion 36. The shaft bearing washer 37 is integrally formed, for example, by a metal material having good sliding characteristics and has a sliding support portion 37a shaped bowl similar to the bearing face 36a and retaining lugs 37b, 37b, 37b protruding respectively to the left, to the right and back from the sliding support portion 37a. The sliding support portion 37a of the shaft support washer 37 is mounted on the bearing face 36a and the retention tabs 37b, 37b, 37b are respectively engaged with respective specific portions of the support portion 36 of to be retained in the support part 36.
    [0016] The lamp unit 7 and supported by the frame 30 so as to be able to tilt by insertion of the supported portion 29 of the coupling member 16 into the support portion 36 from the front side in the retained state of the washer. shaft support 37 in the support portion 36. The sliding portion 29a of the supported portion 29 is mounted on the sliding support portion 37a of the shaft support washer 37 and is slidable with respect to the sliding support 37a (see FIG. 4). A retaining spring 38 is attached to the support portion 36 (see Fig. 1 and Fig. 4) and the retaining spring 38 prevents the supported portion 29 from emerging from the support portion 36. The retaining spring 38 is formed of in one piece with a laterally elongated articulating face 39 rotated in the front-to-back direction, a laterally-elongated anchoring face 40 rotated in the front-rear direction in a position towards the rear side of the articulation face 25 39, coupling faces 41, 41, which together couple the hinge face 39 and the anchoring face 40 and a spring face 42 projecting substantially forwards from the upper edge of the anchoring face 40. The hinge face 39 is provided with insertion holes 39a, 39a at a left-right mutual separation. An anchor hole 40a is formed in the central part in the left-right direction of the anchoring face 40. The coupling faces 41, 41 have a left-right mutual separation and couple together the parts of left and right end of the hinge face 39 and the anchoring face 40 in their upper end portion. The spring face 42 is positioned between the coupling faces 41, 41 in a state positioned on either side of a specific space from the articulation face 39 and the coupling faces 41, 41. The position in the up-down direction of the spring face 42 is set lower than the position in the up-down direction of the coupling faces 41, 41.
    [0017] The length of the spring face 42 in the front-rear direction is set longer than the width (length in the up-down direction) of the hinge face 39 and the width (length in the up-down direction) of the anchoring face 40 and a pressing portion 42a which compresses the compressed projection 29b of the coupling member 16 is provided at a front end portion (end end portion) of the spring face 42 The pressure portion 42a is shaped substantially circular arc-shaped projecting upwardly. Explanations follow concerning a procedure for fixing the holding spring 38 on the support portion 36 of the frame 30 (see Figure 6 in Figure 8). The retaining spring 38 is attached to the support portion 36 in a state in which the shaft support washer 37 is retained in the support portion 36, the supported portion 29 is inserted into the support portion 36 from the front side and the sliding portion 29a is mounted on the sliding support portion 37a of the shaft support washer 37. The holding spring 38 is first assembled on the support portion 36 in a downwardly sloping orientation to the before, so that the respective insertion projections 36b, 36b of the support portion 36 are inserted into the insertion holes 39a, 39a of the hinge face 39 (see Figure 6). A lower end portion of the anchoring face 40 of the holding spring 38 is then placed in a state in engagement with the temporary holding projection 36d of the support portion 36 from the rear (see Fig. 7). The anchoring face 40 of the holding spring 38 is subjected to a slightly elastic deformation with respect to the coupling faces 41, 41 at this stage and the lower end portion of the anchoring face 40 compresses the rear the temporary holding portion 36d. As described above, the insertion projections 36b, 36b are inserted into the respective insertion holes 39a, 39a of the hinge face 39 and the lower end portion of the anchor face 40. 1 5 6 3 4 13 compresses from the rear the temporary holding projection 36d, so that the holding spring 38 is in a temporarily held state relative to the support portion 36. It is therefore unnecessary to maintain the holding spring 38 in place against the support portion 36, either manually or with a template, during the operation of fixing the holding spring 38 to the support portion 36, thus making it possible to improve the ease of the operation of fixing the spring The rear end portions of the coupling faces 41, 41 of the holding spring 38 are then pressed downwardly. When the rear end portions of the coupling faces 41, 41 are downwardly compressed, the lower end portion of the anchoring face 40 slides downwardly over the inclined face 36c of the support portion 36 With this downward movement, the anchoring face 40 overlaps the inclined face 15 of the anchoring projection 36e of the support portion 36 by being elastically deformed, and the anchoring face 40 exceeds then the anchor projection 36e and is the subject of an elastic withdrawal (see Figure 8). Due to the fact that the anchoring face 40 passes through the anchor projection 36e and is elastically withdrawn, the anchor projection 36e is inserted into the anchor hole 40a and is anchored at the anchor projection 36e. lower edge of the anchoring hole opening 40a of the anchoring face, thereby fixing the holding spring 38 to the support portion 36. Attaching the holding spring 38 to the support portion 36 in this manner allows effecting the assembly of the retaining spring 38 on the support portion 36 by inserting the insertion projections 36b, 36b into the respective insertion holes 39a, 39a of the articulation face 39, in engagement with the part of lower end of the anchoring face 40 with the temporary holding projection 36d and downward compressing the rear end portions of the coupling faces 41, 41 to anchor the anchor projection 36e to the lower edge of the opening anchor hole 40a. The fastening operations by screws and adhesion and the like are thus rendered unnecessary during the fixing operation of the holding spring 38 to the support portion 36, to improve the functional performance when fixing the holding spring 38 to the support part 36.
    [0018] Note, for example, that another method of attaching a retaining spring to the support portion 36 is a method in which the overall U-shaped rearward-facing retention spring is positioned at the side before the support portion 36, and the holding spring is then moved back. However, in such cases, it is necessary to provide a configuration such that the holding spring and an upper end portion of the cylindrical portion 9a of the lens holder 9 do not interfere with each other when positioning the spring. maintaining at the front side of the support portion 36. Accordingly, in such cases, it is necessary to position the support portion 36 above the cylindrical portion 9a or to provide a large space for positioning the spring of holding 38 between the upper end portion of the cylindrical portion 9a and the support portion 36, thereby increasing the size of the lamp unit 7.
    [0019] However, in the vehicle headlamp 1, as described above, at the beginning of the attachment of the holding spring 38 to the support portion 36, it is sufficient to tilt the holding spring 36 in a downwardly sloping orientation towards the front so as to insert the insertion projections 36b in the respective insertion holes 39a, 39a of the articulation face 39. It is therefore possible to configure the upper end portion of the cylindrical portion 9a and the support portion 36 at the same height from each other, and it is also possible to reduce the space between the upper end portion of the cylindrical portion 9a and the support portion 36, to reduce the size of the Lamp unit 7.
    [0020] In the fixed state of the holding spring 38 at the support portion 36, the spring face 42 is elastically deformed so as to be displaced upward and the pressure portion 42a compresses over the projection. compressed 29b of the coupling member 16 (see Figure 4 and Figure 8). The pinging and upward movement of the lamp unit 7 can be suppressed by the pressure portion 42a pressing over the compressed projection 29b. In the fixed state of the holding spring 38 at the support portion 36, the coupling faces 41, 41 are in a state positioned just above the restricted projections 29c, 29c of the coupling member 16 of the other of a small space on restricted projections 29c, 29c. Since the coupling faces 41, 41 are in a state on either side of a small gap on the restricted projections 29c, 29c, the restricted projections 29c, 29c are not in contact with the coupling faces 41 when the lamp unit 7 tilts relative to the frame 30, to ensure a smooth pivoting operation of the lamp unit 7 relative to the frame 30. In addition, in the fixed state of the holding spring 38 to the support portion 36, the spring face 42 is positioned substantially at the same height as the coupling faces 41, 41. The size of the holding spring 38 in the up-down direction can therefore be reduced to a minimum, making it possible to reduce the size of the lamp unit 7. As described above, the coupling faces 41, 41 of the holding spring 38 are positioned just above the restricted projections 29c, 29c so that for example when a force of movement towards the top is communicated to the unit 7 by a vibration during the movement of the vehicle or the like, the restricted projections 29c, 29c come into contact with the coupling faces 41, 41, limiting an excessive upward movement of the lamp unit 7. Consequently, it is possible to prevent a large displacement in the lamp unit 7, to prevent interference of the light distribution and to damage the lamp unit 7 and the spring face 42 of the holding spring 38 can be prevented. move, to avoid damaging the spring face 42. Since the coupling faces 41, 41 of the holding spring 38 suppress excessive displacement of the spring face 42, it is unnecessary to provide the frame 30 with a pressure portion for compressing the spring face 42 from above to suppress excessive displacement of the spring face 42. Since it is unnecessary to provide the frame 30 with a pressure portion to compress the spring face 42 over , the height of the lamp unit 7 can be decreased proportionally, making it possible to reduce the dimensions of the lamp unit 7 and the vehicle headlight 1. As described above, in the lamp unit 7, the length of the lamp unit 7 the spring face 42 in the front-rear direction is set longer than the width (length in the up-down direction) of the hinge face 39 and the width (length in the up-down direction) of the d-side. Anchoring 40. The spring face 42 can therefore be configured with sufficient length in the front-to-back direction.
    [0021] As a result, the movement of the load on the spring face 42 can be minimized when the lamp unit 7 moves up and down, thereby guaranteeing a stable movement operation of the spring face 42 and making it possible to increase the operating time. As described above, in the state of the retaining spring 38 attached to the support portion 36, the lamp unit 7 is able to swing in the left-right direction and in the direction of the spring face 42. up-down with respect to the frame 30 in a state compressed by the spring face 42 of the holding spring 38. When the lamp unit 7 tilts with respect to the frame 30, the sliding portion 29a of the supported portion 29 of the coupling member 16 slides above the sliding support portion 37a of the shaft support washer 37 retained in the support portion 36. The left-right aiming adjustment of the lamp unit 7 is effected for example rotating one of the sighting screws or by rotating the two sighting screws in opposite directions, to tilt the lamp unit 7 with the frame 30 about the pivot member in the left-right direction with respect to the lamp housing 2. The setting of The up-down direction of the lamp unit 7 is effected for example by rotating the two sighting screws in the same direction to tilt the lamp unit 7 with the frame 30 around the pivot member in the up direction. The actuating device 43 is attached to the attachment portion 31 of the chassis operating device 30 (see FIG. 1 to FIG. 3). The actuator 43 may be detached from the attachment portion 31 of the actuator. The actuator 43 includes a housing body 44 and an unillustrated control mechanism disposed in the housing body 44. The upper face of the housing body 44 is provided with an unillustrated insertion hole penetrating into the housing. up-down direction. The insertion hole is configured in an elongate front-to-back shape. An upwardly open cavity-shaped portion 44a is formed in communication with the insertion hole at the upper end 35 of the housing body 44. The cavity-shaped portion 44a is bowl-shaped in the front-to-back direction (see Figure 1). The upper face of the housing body 44 is provided with abutments 44b, 44b projecting upward and extending from front to rear at a left-right mutual separation. The actuator 43 is provided with a control shaft 45 which is moved in the fore-aft direction and rotated by the control mechanism. The drive shaft 45 projects through the insertion hole in the cavity-shaped portion 44a. Oscillating shafts 45a, 45a are provided extending to the left and to the right of the control shaft 45.
    [0022] The actuating device 43 is fixed to the fixing part 31 of the actuating device in a removable state by sliding the actuating device 43 in the fore-aft direction with respect to the attachment part 31 of the device. actuation, so that each portion of the actuating device 43 engages the respective attachment projections of the attachment portion 31 of the actuating device, in a state of contact between the upper face of the actuating device 43 and the lower face of the fixing portion 31 of the actuating device. The portion of the actuator 43 provided with the cavity-shaped portion 44a is inserted into the insertion space 35 in the state of the actuator 43 fixed to the attachment portion 31 of the actuator. A hinge 46 is attached to the third attachment portion 8c of the attachment plate 8 of the lamp unit 7. The hinge 46 has a hinge arm 47 extending from left to right and a coupling portion 48 disposed contiguously with the lower face of the central portion in the left-right direction of the hinge arm 47. The coupling portion 48 is provided with a downwardly open coupling cavity 48a (see Fig. 1 and Figs. Figure 5). The hinge arm 47 of the hinge 46 is fixed to the third fastening portion 8c of the fastening plate 8 by fastening screws 400, 400 (see Figure 2 and Figure 3). In the fixed state of the hinge 46 to the attachment plate 8, the rear end portion of the coupling portion 48 is positioned just below the front end portion of the control module 14 and the portion front end of the radiator fan 15 (see Figure 1 and Figure 5).
    [0023] In the fixed state of the hinge 46 to the fixing plate 8 of the lamp unit 7, the control shaft 45 is inserted into the coupling cavity 48a from below, so as to couple the hinge 48 to the actuator 43. Accordingly, as the control shaft 45 rotates, the lamp unit 7 and the hinge 46 swing together in a single block around the compressed projection 29b of the supported portion 29 of the coupling member 16 in the left-right direction relative to the frame 30, for performing a pivoting operation in which the optical axis varies in a direction corresponding to the direction of travel of the vehicle. When this is done, a part of the lamp unit 7 is able to come into contact with the stops 44b, 44b provided on the actuating device 43, this contact with the stops 44b, 44b by a part of the unit 7 or a part of the hinge 46, limiting excessive tilting of the lamp unit 7.
    [0024] When the control shaft 45 moves in the front-to-back direction, the lamp unit 7 and the hinge 46 swing together in a single block around the compressed portion 29b of the supported portion 29 of the housing member. coupling 16, in the up-down direction relative to the frame 30, thereby performing a leveling adjustment to adjust the direction of the optical axis in the right direction when the optical axis varies due to the cargo or the like of the vehicle. When this is done, the hinge 46 switches in one piece with the lamp unit 7 about the oscillating shafts 45a, 45a with respect to the control shaft 45.
    [0025] In the vehicle headlamp 1 configured as described above, it is sometimes necessary to replace or repair configuration parts of the unit due to failures or damage to the configuration parts of the unit. 7. In such cases, it is necessary to remove the configuration part in question from the unit. Among the configuration parts of the unit, there is a particular probability to replace or repair the control module 14 or the radiator fan 15. An explanation follows concerning a procedure for removing the control module 14 and the radiator fan 15 (see Figure 9 to Figure 11).
    [0026] A withdrawal aperture (withdrawal hole) is first formed in the underside of the lamp housing 2 using a knife or the like. Note for example that the lamp housing 2 can be preformed with a withdrawal opening, the opening being closed by a cover, in which case the cover is removed to open the opening. The state in engagement between the actuator 43 and the respective attachment projections of the attachment portion 31 of the chassis actuator 30 is released by sliding the actuator 43 in the forward-to-back direction by relative to the attachment portion 31 of the actuator, by detaching the actuator 43 from the attachment portion 31 of the actuator (see Figure 9). The detached actuator 43 is then pulled out (bottom side) of the lamp outer casing 4 through the opening formed in the underside of the lamp housing 2.
    [0027] The fixing screws 400, 400 are then loosened to detach the hinge 46 from the fixing plate 8 (see FIG. 10) and the detached hinge 46 is withdrawn outwards (lower side) from the outer lamp housing 4 through the opening portion in the lamp housing 2 with the fixing screws 400, 400 using the first withdrawal portion 35a of the insertion space 35. The fixing screws 100, 100 are then loosened to detach. the control module 14 of the mounting base 11 together with the radiator fan 15 and the support member 25 (see Figure 11). The detached control module 14, the radiator fan 15 and the support member 25 are withdrawn out (bottom side) of the lamp outer casing 4 through the opening in the lamp housing 2 together with the fixing screw 100, 100. When this is done, the control module 14, the radiator fan 15 and the support member 25 are moved through the communication space 7a to the side of the attachment portion 31 of the device of the actuating element and the fixing lugs 20c, 20c of the control module 14 pass through the spaces formed inside the respective projections 31a, 31a, allowing the removal of the control module 14, the radiator fan 15 and the element support 25 through the second withdrawal portion 35b of the insertion space 35.
    [0028] The control module 14 and the radiator fan 15 whose replacement or repair has been performed are inserted into the lamp outer casing 4 through the opening in the lamp casing 2, as well as the support member 25 and fixed in their original position. The hinge 46 and the actuator 43 are then inserted inside the lamp outer housing 4 through the opening in the lamp housing 2 and fixed in their original position, in sequence. In the completed state of attachment of the control module 14, the radiator fan 15, the hinge 46 and the actuator 43, a cover plate or the like is attached to the underside of the lamp housing 2 or the lid is fixed to close the opening. Note that as described above, in the vehicle headlamp 1, the stops 44b, 44b which limit excessive tilting of the lamp unit 7 are disposed at the actuator 43 rather than the chassis 30. L the insertion space 35 can therefore be formed with a larger size, facilitating the passage of the hinge 46, the control module 14, the radiator fan 15 and the support member 25 through the space of insertion 35.
    [0029] An example has been given in which the control module 14 and the radiator fan 15 are detached at the same time and withdrawn outwardly from the outer lamp casing 4, but it is also possible to remove only the radiator fan 15. When removing the single radiator fan 15, in a state detached from the actuating device 43 and the hinge 46, the screws 200, 200 are loosened and the support member 25 is detached from the control module 14 and the radiator fan 15 is withdrawn from the opening of the lamp housing 2 at the same time as the support member 25. As described above, in the vehicle headlamp 1, the actuating device 43 can be detached from the attachment portion 31 of the chassis actuator 30 and the hinge 46 can be detached from the attachment plate 8 of the lamp unit 7. In a state in which the actuating device 43 has been detached from the part 31 of the actuating device and the hinge 46 has been detached from the fixing plate 8, the configuration parts of the unit, for example the control module 14 and the radiator fan 15 can be removed towards the down through the communication space 7a. As a result, a removal operation of the configuration units of the unit requiring replacement or repair can be performed smoothly, regardless of the installation positions of the actuator 43 and the hinge 46. , even in cases where the unit's configuration parts can not be removed from the rear. Both the lamp unit 7 and the actuator 43 are connected to the frame 30 and configuration portions of the unit can be withdrawn down through the communication space 7a and the space of the unit. insertion into a disengaged state of the actuator 43 relative to the attachment portion 31 of the actuator, thereby allowing easy removal of unit configuration parts, as well as ensuring a simpler internal structure 4. In addition, the configuration portions of the unit that can be removed include the control module 14 including the control circuit 21 of the light source 13 and the radiator fan 15 which turns when the source 13 is controlled thereby allowing easy detachment of the unit configuration portions of the lamp unit 7 with high replacement requirements, thereby improving the ease of maintenance. dence. In addition, the radiator fan 15 is provided with the rotatably supported support member 25 and the support member 25 is attached to the control module 14, thereby allowing the removal of the control module 14 in a fixed state of the support member 25, which supports the radiator fan 15, to the control module 14, allowing the removal of the control module 14 and the radiator fan 15 at the same time and allowing a faster and easier removal operation. An explanation follows next about a frame 30A and a hinge 46A of a modified example of the frame and the hinge (see Figure 12 to Figure 15). Note that in the following explanation, an explanation is also given regarding different structures of the frame 30A and the hinge 46A, such as a lamp unit and an actuator. However, although elements such as the lamp unit and the actuating device described below have portions whose shape and dimensions differ slightly from those of the lamp unit 7, the actuator 43 , etc., their basic structures are the same as those of the lamp unit 7, the actuator 43, etc. Accordingly, in the following explanation, with the exception of chassis 30A and hinge 46A, parts similar to those described above are allocated the same reference numerals and their explanation is omitted.
    [0030] In addition, since only part of the shape and structure of frame 30A and hinge 46A differs from frame 30 and hinge 46 described above, a detailed explanation is provided only with respect to the parts differing from the frame 30 and the hinge 46 and the same reference numerals are assigned to the other parts as the similar parts of the frame 30 and the hinge 46, and their explanation is omitted. The lamp unit 7 is suspended from the frame 30A to be supported so that it can tilt (tilt) (see Fig. 12 and Fig. 13).
    [0031] The chassis 30A is configured by an attachment portion of the chassis-shaped actuator 31A which is pierced from top to bottom, coupling portions 32, 32 protruding outwardly from the sides (outer) of both the left side faces. and right of the attachment portion 31A of the actuator, columnar portions 33, 33 protruding upwardly from the coupling portions 32, 32 and a support 34 coupled between the upper end portions of the columnar portion 33, 33. The fixing portion 31A of the actuating device is provided with several attachment projections in respective specific positions. An interior space of the attachment portion 31A of the actuator forms an insertion space 35A. The insertion space 35A is shaped in a substantially rectangular shape, slightly elongated in the longitudinal direction. The attachment portion 31A of the actuating device is provided with respective stops 31c, 31c on the opening edges of both left and right sides of the insertion space 35A. The stops 31c, 31c are positioned accordingly outside the insertion space 35A. The stops 31c, 31c project upwards and are shaped in a shape extending from front to rear. A pivot coupling hole 33a is formed penetrating the intermediate portion in the up-down direction of one of the columnar portions 33 from front to rear. The chassis 30A is capable of swinging in the left-right direction and in the up-down direction in a state in which the lamp unit 7 is compressed by the spring face 42 of the holding spring 38. The actuating device 43 is attached to the attachment portion 31A of the chassis actuator 30A and the actuator 43 can be detached from the attachment portion 31A of the actuator. The hinge 46A is fixed to the third fixing portion 8c of the fixing plate 8 of the lamp unit 7. The hinge 46A comprises a hinge arm 47 extending from left to right and a coupling portion 48A provided contiguously with the underside of the central portion in the left-right direction of the hinge arm 47. The coupling portion 48A is provided with a downwardly opening coupling cavity 48a. The outer peripheral face of the coupling portion 48A is provided with abutment contact portions 48b, 48b with a left-right separation therebetween. The abutment contact portions 48b, 48b are shaped into substantially circular arc shapes with a low, high-low thickness and project outwardly toward the sides.
    [0032] In the fixed state of the hinge 46A to the fixing plate 8 of the lamp unit 7, the control shaft 45 is inserted into the coupling cavity 48a from below, thus coupling the control shaft 45 to the actuator 43. Accordingly, as the control shaft 45 rotates, the lamp unit 7 and the hinge 46A swing together in a single block around the compressed projection 29b of the supported portion 29 the coupling member 16 in the left-right direction relative to the frame 30A so as to perform a pivoting operation in which the optical axis varies in a direction corresponding to the direction of travel of the vehicle.
    [0033] In an appropriate tilting range of the lamp unit 7 of the pivoting operation, the stops 31c, 31c, provided on the fixing portion 31A of the frame actuating device 30A are not brought into contact by the the abutment contact portions 48b, 48b of the hinge 46A (see Fig. 14), and the lamp unit 7 rocker smoothly. It will be appreciated that Fig. 14 illustrates a state in which the lamp unit 7 is positioned substantially in the center of the tilt range. When for example the lamp unit 7 tilts more than the appropriate tilt range in a pivoting operation due to vibration or the like during vehicle travel, at least one of the abutment contact portions 48b, 48b in contact with at least one of the stops 31c, 31c (see Fig. 15) limiting excessive tilting of the lamp unit 7. When the control shaft 45 moves in the front-rear direction, the unit 7 and the hinge 46A pivot together in a single block around the compressed projection 29b of the supported portion 29 of the coupling member 16 in the up-down direction relative to the frame 30A, thus making a setting of leveling to adjust the direction of the optical axis in the right direction when the optical axis varies due to the cargo or the like in the vehicle. When this is done, the hinge 46A switches in one piece with the lamp unit 7 about the oscillating shafts 45a, 45a with respect to the control shaft 45. In the above configuration provided with the frame 30A and of the articulation 46A, the stops 31c, 31c provided on the fixing portion 31A of the actuating device are positioned outside the insertion space 35A. Accordingly, in a state in which the actuator 43 is detached from the attachment portion 31A of the actuator and the hinge 46A is detached from the attachment plate 8, during the withdrawal of the Because of the configuration of the unit, particularly of the control module 14, the stops 31c, 31c do not interfere with each other when removing the configuration parts of the unit, allowing a smooth removal operation of the configuration parts of the unit. unit requiring replacement or repair. In the above description, an example is given in which two of each of the stops 31c, 31c and the abutment contact portions 48b, 48b are respectively provided on the frame 30A and the hinge 46A. However, a configuration can be realized in which a single stop 31c and a single abutment contact portion 48b are respectively provided on the frame 30A and the hinge 46A. It is unnecessary to provide the stops 44b, 44b of the actuating device 43 in a configuration provided with the frame 30a and the hinge 46A.
    权利要求:
    Claims (5)
    [0001]
    REVENDICATIONS1. Vehicle headlight (1) characterized in that it comprises: a lamp unit (7) including a light source (13) and disposed inside an outer lamp housing (4), the outer casing of lamp (4) including a lamp housing (2) with an opening and a cover (3) covering the opening of the lamp housing (2); an actuating device (43) including a control shaft (45) and releasable from a certain portion, the actuating device (43) being configured to communicate a control force to the lamp unit (7); ) to switch the lamp unit (7) and change the optical axis of the light source (13); a hinge (46, 46A) including a coupling portion (48, 48A) and detachable from the lamp unit (7), the coupling portion (48, 48A) being coupled to the control shaft (45); ) in a state in which the hinge (46, 46A) is attached to the lamp unit (7), wherein: the lamp unit (7) has a plurality of unit configuration portions including the source of light (13), the lamp unit (7) is shaped with a communication space (7a) which is open at least downwards, and at least one of the configuration parts of the unit can be removed at least down through the communication space (7a) into a state in which the actuating device (43) has been detached from the part and the articulation (46, 46A) has been detached from the lamp unit (7).
    [0002]
    2. Vehicle headlight according to claim 1, characterized in that it further comprises: a frame (30, 30A) including a fixing portion of the actuating device (31, 31A) which constitutes the certain part, the frame (30, 30A) being configured to pivotably support the lamp unit (7), wherein: the attachment portion of the actuating device (31, 31A) is shaped like a frame including a gap insertion (35, 35A) pierced in a high-low direction, the insertion space (35, 35A) being below and in communication with the communication space (7a), and said at least one configuration portions of the unit may be withdrawn down through the communication space (7a) and the insertion space (35, 35A).
    [0003]
    Vehicle headlight according to claim 1 or claim 2, characterized in that it further comprises: a control module (14) including a control circuit (21) of the light source (13); and a radiator fan (15) configured to rotate at least when the light source (13) is controlled, wherein: said at least one of the configuration portions of the unit is comprised of the control module (14) and the radiator fan (15).
    [0004]
    Vehicle headlight according to claim 3, characterized in that it further comprises: a support member (25) configured to rotatably support the radiator fan (15) and attached to the control module (14).
    [0005]
    A vehicle headlamp according to claim 2, claim 3 or claim 4, wherein: the hinge (46A) and the lamp unit (7) rotate together according to the rotation of the drive shaft ( 45), the hinge (46A) has a stop contact portion (48b), and the frame (30A) has a stop (31c) positioned outside the insertion space (35A) and configured to limiting rotation of the lamp unit (7) by contact of the abutment contact portion (48b) during rotation of the hinge (46A).
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    同族专利:
    公开号 | 公开日
    CN104728730A|2015-06-24|
    US9546768B2|2017-01-17|
    US20150176795A1|2015-06-25|
    JP6345052B2|2018-06-20|
    JP2015135802A|2015-07-27|
    CN104728730B|2017-09-15|
    DE102014226585A1|2015-06-25|
    FR3015634B1|2019-04-05|
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    法律状态:
    2015-11-06| PLFP| Fee payment|Year of fee payment: 2 |
    2016-11-14| PLFP| Fee payment|Year of fee payment: 3 |
    2017-10-27| PLFP| Fee payment|Year of fee payment: 4 |
    2017-11-10| PLSC| Search report ready|Effective date: 20171110 |
    2018-10-29| PLFP| Fee payment|Year of fee payment: 5 |
    2020-10-16| ST| Notification of lapse|Effective date: 20200914 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2013264299|2013-12-20|
    JP2013264299|2013-12-20|
    JP2014185440|2014-09-11|
    JP2014185440A|JP6345052B2|2013-12-20|2014-09-11|Vehicle headlamp|
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