CN101348092B - Optical axis adjustment device for vehicle lamp - Google Patents

Optical axis adjustment device for vehicle lamp Download PDF

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Publication number
CN101348092B
CN101348092B CN 200810134703 CN200810134703A CN101348092B CN 101348092 B CN101348092 B CN 101348092B CN 200810134703 CN200810134703 CN 200810134703 CN 200810134703 A CN200810134703 A CN 200810134703A CN 101348092 B CN101348092 B CN 101348092B
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CN
China
Prior art keywords
aforementioned
unit
lamp
cable
slide block
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Expired - Fee Related
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CN 200810134703
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Chinese (zh)
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CN101348092A (en
Inventor
草谷雅弘
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Koito Manufacturing Co Ltd
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Koito Manufacturing Co Ltd
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Publication of CN101348092A publication Critical patent/CN101348092A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/068—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle by mechanical means
    • B60Q1/0683—Adjustable by rotation of a screw
    • B60Q1/0686—Adjustable by rotation of a screw using a position indicator mounted on the headlight and permanently attached thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/068—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle by mechanical means
    • B60Q1/072—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle by mechanical means comprising a flexible element, e.g. chain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/076—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle by electrical means including means to transmit the movements, e.g. shafts or joints

Abstract

The invention provides an optical axis regulating device used in vehicle lamp, which can change the illuminating direction along the up-down direction and the left-right direction independently in the same time, while can achieve low cost and miniaturization. The optical axis regulating device used in vehicle lamp capable of moving the lamp unit in the up-down direction and in the left-right direction comprises: a shell, a slider disposed capable of sliding in the front-rear direction in the shell; an output unit supported on the slider capable of rotating freely while connected to the lamp unit; an up-down adjusting unit which can move the slider in front-rear direction; a left-right adjusting unit which can rotate the output unit; an operation unit having slider moving amount showing scales; a cable for connecting the operation unit and the slider; and an initial position adjusting unit capable of moving the cable without translocating the scales of the operation unit.

Description

The optical axis adjustable device of lamps apparatus for vehicle
Technical field
The present invention relates to a kind of optical axis adjustable device of new lamps apparatus for vehicle.Specifically, relate to following technology: direction of illumination is carried out independently in variation on the above-below direction and the variation on left and right directions, realize that simultaneously cost reduces and miniaturization.
Background technology
In lamps apparatus for vehicle, for example automotive headlamp, has the structure that any direction about direction of illumination can being reached up and down changes.
Structure shown in the patent documentation 1 is that lamp unit is supported on the carriage, the structure that makes about this carriage, tilts to move up and down.That is, tilt by driving that carriage is tilted is mobile for movement actuator, in addition, by the movement actuator that has a down dip on driving make have a down dip on the carriage mobile.
In the lamps apparatus for vehicle shown in the patent documentation 2, the rotation of direction to the left and right and up and down the rotation of direction utilize actuator to realize.
In the lamps apparatus for vehicle shown in the patent documentation 3, also be the rotation of direction to the left and right and up and down the rotation of direction utilize actuator to realize.
Patent documentation 1: the spy opens the 2005-119463 communique
Patent documentation 2: the spy opens the 2005-186731 communique
Patent documentation 3: the spy opens the 2003-54310 communique
Summary of the invention
But, in the lamps apparatus for vehicle shown in the aforementioned patent document 1, be provided with respectively and make the carriage mobile movement actuator and making of the tilting movement actuator that has a down dip on mobile that has a down dip on it that tilts, number of components and assembling increase man-hour, in addition, quantity to the electric wiring of power supply of each actuator and control usefulness also needs to increase, and becomes the reason that cost increases.In addition, for about light fixture can't make the actuator universalization, this point also becomes the reason that cost increases.
In the lamps apparatus for vehicle shown in the aforementioned patent document 2, because the point of contact of actuator and the mobile carriage that is used to tilt separates with point of contact with the mobile carriage that is used for having a down dip, and the mutual alignment relation is fixing, therefore need design not have commonality and the carriage of this actuator special use, in addition, for right and left lamp, need special-purpose separately actuator respectively.
In the lamps apparatus for vehicle shown in the aforementioned patent document 3, the efferent of actuator is one, can use the general-duty actuator in right and left lamp, but can not simultaneously and carry out independently that the inclination of direction is to the left and right moved and up and down the inclination of direction move.
The present invention proposes in view of the above problems, and its problem is, can simultaneously and make direction of illumination change on the above-below direction and change on left and right directions independently, realizes that simultaneously cost reduces and miniaturization.
In order to solve above-mentioned problem, the optical axis adjustable device of lamps apparatus for vehicle of the present invention, it makes about the lamp unit, it is mobile to tilt, this lamp unit rotatably is supported in the lamp house by ball joint, this lamp house is formed by the translucent cover of lamp outer casing and this lamp outer casing peristome of covering, and this optical axis adjustable device has: housing; Slide block, it is set to and can moves up in front and back with respect to this housing; Efferent, it can be supported on the aforementioned slide block with rotating freely, links with aforementioned lamp unit simultaneously; Adjustment unit up and down, it makes aforementioned slide block move up in front and back; And left and right sides adjustment unit, it makes aforementioned efferent rotation, also has: operating unit, and it has the scale of expression slide block amount of movement; Cable, it links aforementioned operation unit and slide block; And the initial position adjustment unit, it does not change the scale position of aforementioned operation unit and aforementioned cable is moved.
Therefore, in the optical axis adjustable device of lamps apparatus for vehicle of the present invention, can be independently and side by side carry out direction of illumination in variation on the above-below direction and the variation on left and right directions, can realize that cost reduces and miniaturization simultaneously.
The effect of invention
The optical axis adjustable device of lamps apparatus for vehicle of the present invention, it makes about the lamp unit, it is mobile to tilt, and this lamp unit is supported in the lamp house by a fulcrum, and this lamp house is formed by lamp outer casing and the translucent cover that covers this lamp outer casing peristome, it is characterized in that having: housing; Slide block, it is set to and can moves up in front and back with respect to this housing; Efferent, it can be supported on the aforementioned slide block with rotating freely, links with aforementioned lamp unit simultaneously; Adjustment unit up and down, it makes aforementioned slide block move up in front and back; And left and right sides adjustment unit, it makes aforementioned efferent rotation, also has: operating unit, and it has the scale of expression slide block amount of movement; Cable, it links aforementioned operation unit and slide block; And the initial position adjustment unit, it does not change the scale position of aforementioned operation unit and aforementioned cable is moved.
Therefore, in the optical axis adjustable device of lamps apparatus for vehicle of the present invention, can be independently and side by side carry out direction of illumination in variation on the above-below direction and the variation on the left and right directions, can realize that cost reduces and miniaturization simultaneously.In addition, it not only can change direction of illumination under steam, adjustment, the initial calibration of the direction of illumination in the time of can also carrying out initial setting.And owing to linked by cable between slide block and the operating unit, therefore, increasing in conjunction with degree of freedom between the position of configuration lamps apparatus for vehicle and the position of configuration operation unit can not be subjected to car type and vehicle dimension etc. that optical axis adjustable device restrictedly is set.
In technical scheme 2 described inventions, because aforementioned cable is with at the state that has suitable friction between itself and the outer tube, insert slidably in this outer tube, aforementioned initial position adjustment unit is a helical element, itself and aforementioned outer tube screw togather, can be rotatably set in simultaneously on the aforementioned housing, the aforementioned operation unit has: rotatable operation knob; And drive disk assembly, it utilizes on the S. A. direction that is rotated in operation knob of this operation knob and moves, and links each cable simultaneously, and this each cable links with the slide block that is arranged at respectively on the right and left lamp units, therefore do not need electric control unit, can cost-cutting.In addition, can simultaneously and carry out the optical axis adjustment of right and left lamp on above-below direction equally.
In technical scheme 3 described inventions, because the aforementioned operation unit has: rotatable operation knob; And drive disk assembly, it utilizes the rotation of this operation knob and moves on the S. A. direction of operation knob, link with aforementioned cable simultaneously, the aforementioned operation knob constitutes, aforementioned drive disk assembly is moved and change and aforementioned scale between relative position, thereby become aforementioned initial position adjustment unit, therefore be the initial position adjustment unit by making the operating unit double as, can reduce number of components, cost-cutting.In addition, the indoor adjustment of carrying out initial position of the position, for example car that dispose operating unit can be positioned at.
In technical scheme 4 described inventions, because aforementioned housing is installed in the top of lamp outer casing, therefore carry out the adjustment of initial position easily, in addition, the cable run distance of the cable of calibration shortens about being used for, and helps cost to reduce.
Description of drawings
Fig. 1 is the summary longitudinal diagram that an example of automotive headlamp of the present invention has been used in expression.
Fig. 2 represents the embodiment of the optical axis adjustable device of lamps apparatus for vehicle of the present invention with Fig. 3 and Fig. 4, and this figure is the horizontal sectional drawing of actuator and operating unit.
Fig. 3 is the brief strabismus map of actuator shown in Figure 2.
Fig. 4 is the front elevation of operating unit.
Fig. 5 represents with Fig. 6, the variation of the optical axis adjustable device of lamps apparatus for vehicle of the present invention, and this figure is the horizontal sectional drawing of actuator and operating unit.
Fig. 6 is the front elevation of operating unit.
Fig. 7 is the summary longitudinal diagram of the variation of expression automotive headlamp.
The specific embodiment
Below, be used to implement the best mode of the optical axis adjustable device of lamps apparatus for vehicle of the present invention with reference to description of drawings.In addition, any embodiment shown in below all is to apply the present invention in the optical axis adjustable device of automotive headlamp.
Fig. 1 to Fig. 5 represents the 1st embodiment of the optical axis adjustable device of lamps apparatus for vehicle of the present invention.
Fig. 1 represents the summary of automotive headlamp.
Automotive headlamp 10 has lamp outer casing 110, and it has the recess of opening forwards, and the front openings of this lamp outer casing 110 forms lamp house 101 by translucent cover 120 coverings.And tiltable is supported in the aforementioned lamp house 101 lamp unit 130 movably on the left and right directions reaching up and down.In addition, actuator 140 is installed on aforementioned lamp outer casing 110, it makes lamp unit 130 tilt mobile reaching left and right directions up and down.
Lamp unit 130 has catadioptre 131, projection lens 132 and not shown light source at least, so that illumination light is shone towards the place ahead.And, form the shell joint portion 133 that combines with aforementioned lamp outer casing 110 in the upper end of lamp unit 130, in addition, form the actuator joint portion 134 that combines with aforementioned actuator 140 in the bottom of lamp unit 130.Aforementioned shell joint portion 133 forms the spheroid of a part that constitutes ball joint portion in the present embodiment.In addition, aforementioned actuator joint portion 134 forms thick discoideus, on this actuator joint portion 134, forms the binding recess 134a to lower aperture, links on the inner peripheral surface of recess 134a at this, forms the not shown engagement groove that extends along the vertical direction.
At the lower surface of the upper surface part 111 of lamp outer casing 110, form lamp unit joint portion 112.This lamp unit joint portion 112 forms the Ball support body of a part that constitutes sphero-joint portion, forms the spherical recess 112a to lower aperture on this Ball support body 112.And the embedded spheroid (shell joint portion) 133 that is formed on the lamp unit 130 forms ball joint here in this spherical recess 112a.And, rotate in spherical recess 112a by aforementioned spheroid (shell joint portion) 133, can make lamp unit 130 tilt mobile reaching left and right directions up and down.
Aforementioned actuator 140 has from the outstanding upward output shaft 142 of the upper surface of housing 141, and aforementioned output shaft 142 is by the left and right sides described later adjustment unit and adjustment unit driving up and down.That is, utilize up and down adjustment unit that output shaft 142 is moved up in front and back, utilize left and right sides adjustment unit to make output shaft 142 be centered around the S. A. rotation of extending on the vertical direction roughly.In addition, on the outer peripheral face of aforementioned output shaft 142, form the engaging raised line 142a, the 142a that extend vertically ...
Aforementioned actuator 140 is fixed on the lower surface of lower surface portion 113 of lamp outer casing 110, and output shaft 142 inserts among the long through hole 113a of fore-and-aft direction on the lower surface portion 113 that is formed at lamp outer casing 110 and projecting inward to aforementioned lamp house 101, and is entrenched in the binding recess 134a on the bottom that is arranged at lamp unit 130.At this moment, be formed at engaging raised line 142a, 142a on the outer peripheral face of output shaft 142 ... engage with the not shown engagement groove on being formed at binding recess 134a inner peripheral surface, prevent from output shaft 142 and link between the recess 134a on hand of rotation, to slide.
In above-mentioned automotive headlamp 10, if the output shaft 142 of actuator 140 is centered around the S. A. rotation of extending on the vertical direction roughly, then bear the rotational force that is centered around the axle that extends on the vertical direction roughly with the chimeric actuator joint portion 134 of this output shaft 142, thus, the lamp unit 130 that forms this actuator joint portion 134 rotates up at right and left.Thus, the direction of illumination that is produced by lamp unit 130 changes on left and right directions.In addition, if the output shaft of actuator 140 142 moves up in front and back, then owing to the state of lamp unit 130 with the stationkeeping of shell joint portion 133 on fore-and-aft direction of upper end, the actuator joint portion 134 of lower end is at the fore-and-aft direction top offset, so lamp unit 130 tilts mobile at above-below direction.Thus, the direction of illumination that is produced by lamp unit 130 changes on above-below direction.
Fig. 2 to Fig. 4 represents actuator 140 in detail.
Actuator 140 has the output shaft 142 that protrudes upward from housing 141, and this output shaft 142 is set to: can be centered around the axle rotation of extending on the vertical direction roughly, can move up in front and back simultaneously.And, in housing 141, constituting rotary drive mechanism 150 and horizontal drive mechanism 160, this rotary drive mechanism 150 makes output shaft 142 be centered around the axle rotation of extending on the vertical direction roughly, and this horizontal drive machine 160 makes output shaft 142 move up in front and back.
Aforementioned output shaft 142 forms roughly cylindric, has the centre hole 142b that runs through the center.In addition, at the roughly first half of output shaft 142 outer peripheral faces, engaging raised line 142a, the 142a that the protrusion setting is extended vertically ...In addition, the roughly lower part formation gear teeth at output shaft 142 outer peripheral faces become gear part 142c.
In housing 141, slide block 161 can be set on fore-and-aft direction slidably, on this slide block 161, form: pivot shaft 161a, it protrudes upward from substantial middle; And supporting walls 161b, 161b, they extend and form along fore-and-aft direction on the position of leaving a little to the left and right from this pivot shaft 161a.In addition, on fore-and-aft direction, run through and form sliding eye 161c.The engaging lug 161d, the 161d that protrude from its left and right side of aforementioned slide block 161, can engage with guide groove 141a, 141a with being free to slide, these guide grooves 141a, 141a extend and form at medial surface upper edge, the left and right sides of housing 141 fore-and-aft direction, thus, this slide block 161 is supported in the housing 141 with can move freely on fore-and-aft direction.
Aforementioned output shaft 142 inserts the pivot shaft 161a of slide block 161 therein among the 142b of heart hole, can be supported on the slide block 161 thus with rotating freely.
Between the aforementioned supporting walls 161b of slide block 161 and 161b, can support worm gear 151, the gear part 142c engagement of this worm gear 151 and aforementioned output shaft 142 with rotating freely.Therefore, if worm gear 151 rotations, then output shaft 142 is rotated.Form the connecting part 151a that protrude in the side direction outside from aforementioned supporting walls 161b, 161b on aforementioned worm gear 151, the section shape that forms the end face opening on this connecting part 151a is the connect apertures 151b of rectangle.And, constitute rotary drive mechanism 150 with the gear part 142c that is formed on the output shaft 142 by this worm gear 151.
With the upwardly extending mode support guide axle 162 in front and back, this axis of guide 162 inserts among the sliding eye 161c of aforementioned slide block 161 slidably in housing 141.Between the rearward end inside face and slide block 161 of housing 141, the state that is embedded in addition on the aforementioned axis of guide 162 inserts compression coil spring 163, utilizes this compression coil spring 163 with slide block 161 pretension forwards.
Import the front end of the cable 164 in the housing 141 from the rear end of housing 141, be fixed on the rear end of aforementioned slide block 161.And, constitute horizontal drive mechanism 160 by slide block 161, compression coil spring 163 and cable 164.That is, if cable 164 is stretched in the direction of pulling out from housing 141, then slide block 161 rearward moves in compression coil spring 163 compressions, and the output shaft 142 that is supported on this slide block 161 rearward moves.Otherwise if loosen cable 164, then slide block 161 utilizes compression coil spring 163 and forwards moves.That is, by operation cable 164, slide block 161 moves up in front and back.
Aforementioned cable 164 inserts in the outer tube 171.The suitable friction force of effect between cable 164 and outer tube 171, if to surpass the power stretching cable 164 of this friction force, then cable 164 moves with respect to outer tube 171.And, on the outer peripheral face of outer tube 171 leading sections, form threaded portion 171a.
Adjustment whorl 172 as helical element rotatably is supported on the rearward end of aforementioned housing 141, and aforementioned cable 164 inserts in the adjustment 172 and is directed in the housing 141.In addition, adjusting the screw 172a that forms open rearward end on the whorl 172, the threaded portion 171a of aforementioned outer tube 171 front ends and this screw 172a screw togather.Therefore, adjust whorl 172 with respect to housing 141 rotations if make, then outer tube 171 moves forward and backward with this hand of rotation is corresponding.And if outer tube 171 moves, then cable 164 moves with respect to housing 141 with this outer tube 171, thus the position change of slide block 161.And, constitute initial position adjustment unit 170 by this adjustment whorl 172 and outer tube 171.
Operating unit 180 is used to carry out the stretched operation of aforementioned cable 164.Operating unit 180 has: rotatable operation knob 181; And drive disk assembly 182, it is by 181 rotations of this operation knob and move on the S. A. direction of operation knob 181, links each cable 164,164 simultaneously, the slide block binding that this each cable 164,164 is provided with corresponding respectively to right and left lamp units.Swivel bolt 184 can be supported on the operating portion framework 183 with rotating freely, forms screw thread 184a on most of outer peripheral face of this bolt 184, forms in rearward end to connect recess 184b.Connection shaft 181a protrudes the chimeric binding of binding recess 184b of this connection shaft 181a and aforementioned swivel bolt 184 to operation knob 181.Thus, utilization makes operation knob 181 rotations and makes swivel bolt 184 rotations.
Aforementioned drive disk assembly 182 is configured in the aforementioned operation portion framework 183, can swivel bolt 184 axially on move.Central part at drive disk assembly 182 forms screw 182a, and the screw thread 184a of aforementioned swivel bolt 184 and this screw 182a screw togather.In addition, drive disk assembly 182 utilizes not shown unit that it can't be rotated around the axle of swivel bolt 184.Therefore, if swivel bolt 184 is rotated, then utilizes its screw thread 184a and make screw 182a feeding, thereby drive disk assembly 182 moves along fore-and-aft direction in operating portion framework 183.And drive disk assembly 182 links with the other end corresponding to two cables 164,164 of right and left lamp units.
Therefore, if rotary manipulation operation knob 181, then cable 164,164 is operated, and slide block 161,161 moves up in front and back.In addition, on operation knob 181, form alignment mark 181b, in addition, on the periphery of the operation knob 181 of operating portion framework 183, form reference graduation 183a.
Aforesaid operations unit 180 for example is arranged on the driver's seat.
In the connect apertures 151b of the worm gear 151 of aforementioned rotary drive mechanism 150, the leading section 152a of the section essentially rectangular of chimeric fixedly flexible cord 152.And as shown in Figure 3, the rearward end of aforementioned flexible cord 152 and calibration operation portion 153 link.Calibration operation portion 153 links with operating unit 154 on the back face wall 114 that for example rotatably is supported on lamp outer casing 110.And, forming cross recess 154a in the rear surface of operating unit 154, the subtend hole 114a of this cross recess 154a on the back face wall 114 that is formed at lamp body is towards the rear.Therefore, if the leading section 155a of cross spiral shell 155 is engaged with the cross recess 154a of operating unit 154, make Phillips screwdriver 155 rotations, then operating unit 154 rotations, and then the rotation of operating unit 154 is passed to worm gear 151 via flexible cord 152, thereby is rotated with this worm gear 151 and gear part 142c ingear output shaft 142.Therefore, utilize the rotation of output shaft 142 and lamp unit 30 rotates up at right and left, direction of illumination changes on left and right directions.
Carry out initial calibration at first, in the following manner, when promptly carrying out delivering or the setting of the direction of illumination when vehicle inspection etc. is checked in factory.
The initial calibration of left and right directions as shown in Figure 3, utilize rotations such as Phillips screwdriver 155 to carry out by the operating unit 154 that makes calibration operation portion 153, thus, as noted above, make worm gear 151 rotation via flexible cord 152, thus make itself and with 142 rotations of gear part 142c ingear output shaft.
In addition, the initial calibration on the above-below direction is undertaken by operation initial position adjustment unit 170.In the case, at first, make operation knob 181 rotation of operating unit 180, alignment mark 181b is alignd with reference graduation 183a and carry out the setting of reference position.Then, operation initial position adjustment unit 170 is to become and the cooresponding irradiating angle in said reference position.That is, make 172 rotations of adjustment whorl.Owing to utilize the screw 172a of this adjustment whorl 172, make the threaded portion 171a feeding of outer tube 171, therefore outer tube 171 moves with respect to housing, utilize the friction force between itself and this outer tube 171, cable 164 moves with outer tube 171, thus, slide block 161 moves up in front and back, and lamp unit 30 tilts mobile at above-below direction.Like this, the irradiating angle in the reference position is set.
Then, when when smoothing is adjusted, in the way of travelling, carrying out the change on the above-below direction of direction of illumination, make operation knob 181 rotations.Like this, swivel bolt 184 rotation, utilize its threaded portion and drive disk assembly 182 swivel bolt 184 axially, be to move on the S. A. direction of operation knob 181.And, because in drive disk assembly 182, the cable that links with slide block 161,161 corresponding to the actuator 140,140 of right and left lamp units 30,30 164 moves up in front and back, and therefore, slide block 161,161 moves up in front and back with respect to housing 141,141.Thus, the output shaft 142,142 that is supported on the slide block 161,161 moves up in front and back, so lamp unit 30,30 tilts mobilely at above-below direction, and direction of illumination changes on above-below direction.
Fig. 5 and Fig. 6 represent the variation of actuator and operating unit.
The difference of actuator 140A and aforementioned actuator 140 is do not have the initial position adjustment unit.That is, cable 164 passes and is formed on the through hole 141b on housing 141 rear ends and imports in the housing 141, can insert in the outer tube 165 with being free to slide.Because other aspects and aforementioned actuator 140 are roughly the same, therefore, omit explanation to part mark identical and 140 the identical label of each several part with the each several part of this actuator 140.
Operating unit 180A has initial position and adjusts function.In addition, operating unit 180A is corresponding with right and left lamp units and be provided for two of right and left lamp units respectively.In addition, only represent one of them in the accompanying drawings.
Operating unit 180A has: rotatable operation knob 181; And drive disk assembly 182, it utilizes the rotation of this operation knob 181, moves on the S. A. direction of operation knob 181, links cable 164 simultaneously, this cable 164 with corresponding to about in a side lamp tool unit and the slide block that is provided with links.Swivel bolt 184 can be supported on the operating portion framework 183 with rotating freely, forms threaded portion 184a on most of outer peripheral face of this swivel bolt 184, forms to link recess 184b on rearward end.Connection shaft 181a protrudes to operation knob 181, and this connection shaft 181a for example utilizes the spline combination, can freely dismantle on the chimeric binding recess 184b that is attached at aforementioned swivel bolt 184.Thus, swivel bolt 184 rotations by making operation knob 181 rotations.
Drive disk assembly 182 is configured in the aforementioned operation portion framework 183, can swivel bolt 184 axially on move, form screw 182a at the central part of drive disk assembly 182, the screw thread 184a of this screw 182a and aforementioned swivel bolt 184 screws togather.In addition, drive disk assembly 182 utilizes not shown unit and can't rotate around the axle of swivel bolt 184.Therefore, if swivel bolt 184 rotation then utilizes its screw thread 184a and makes screw 182a feeding, thereby drive disk assembly 182 moves up in front and back in operating portion framework 183.And drive disk assembly 182 links with the other end of cable 164.
Therefore, if operation knob 181 is rotated operation, then cable 164 is operated, and slide block 161 moves up in front and back.In addition, on operation knob 181, form alignment mark 181b, in addition, form reference graduation 183a at the periphery of the operation knob 181 of operating portion framework 183.And, on the position relative of operating portion framework 183, protrude stop protrusion 183b is set with operation knob 181, on operation knob 181 and operating portion framework 183 facing surfaces, protrude the 181c of snap fit tabs portion is set.
Aforesaid operations unit 180 for example is arranged on the driver's seat.
The setting of the initial position on above-below direction of this variation is carried out in the following manner.
At first, make operation knob 181 rotations,, select correct irradiating angle as initial position.The selection of this angle is for example carried out when observation is radiated at luminous intensity distribution on the screen that is arranged at vehicle front.Under this state, the connection shaft 181a of operation knob 181 is pulled out from the binding recess 184b of swivel bolt 184, at this moment, make the alignment mark 181b of operation knob 181 become the angle of the reference graduation 183a of point operation portion framework 183, with the chimeric binding of binding recess 184b of the connection shaft 181a and the swivel bolt 184 of operation knob 181.Thus, the alignment mark 181b of operation knob 181 points to reference graduation 183a, and irradiating angle becomes the benchmark irradiating angle, and scale is consistent with irradiating angle.Then, under this state, the 181c of snap fit tabs portion of operation knob 181 and the stop protrusion 183b butt of operating portion framework 183, thus, make cable 164 become the direction that forwards moves, that is, becoming can't be to the state of the direction rotation that direction of illumination is changed upward.
Smoothing is adjusted, and becomes with in the benchmark irradiating angle is compared the scope of angle down at irradiating angle, is undertaken by making operation knob 181 rotations.
In this variation, initial calibration can be on the position of actuator 140, but carries out on the position of configuration operation knob 181, in for example driver's seat.
Fig. 7 represents the variation 10A of automotive headlamp.
The difference of this variation 10A and aforementioned automotive headlamp 10 is that actuator 140 is disposed at the top of lamp outer casing 110.Because other aspects are identical with aforementioned automotive headlamp 10, therefore identical label, omission explanation to this identical part mark and automotive headlamp 10.
In this automotive headlamp 10A, because actuator 140 is disposed at the top of lamp outer casing 110, therefore the calibration operation portion 153 of calibration about being used for can be disposed at the top of car body, it is easy that left and right sides calibration operation becomes.Certainly, in aforementioned automotive headlamp 10, also calibration operating portion 153 can be disposed at the top of car body, but in this case, need make flexible cord 152 elongated, and its cabling trouble, operation is poor.
In addition, in this automotive headlamp 10A, just in case under the cut situation, slide block 161 utilizes the compression coil spring 163 of actuator 140 and forwards moves, lamp unit 130 becomes down at cable 164.Therefore,, can not make light beam upwards yet, can guarantee safety even under the situation of the disengagement failure that cable 164 takes place.
In addition, in aforementioned automotive headlamp 10, also can in actuator 140, connecting rod mechanism be set, if with can be so that cable is rearward pulled, then slide block forwards moves, and simultaneously with slide block pretension rearward, thereby can make lamp unit down when cable cuts off.
As noted above, in the optical axis adjustable device of lamps apparatus for vehicle of the present invention, can be independently and side by side carry out direction of illumination in variation on the above-below direction and the variation on left and right directions, can realize that cost reduces and miniaturization simultaneously.In addition, not only can change direction of illumination under steam, adjustment, the initial calibration of the direction of illumination in the time of also initial setting can being carried out.And, owing to link by cable between slide block and the operating unit, therefore dispose increasing between the position of the position of lamps apparatus for vehicle and configuration operation unit in conjunction with degree of freedom, can not be subjected to car type and vehicle dimension etc. that optical axis adjustable device restrictedly is set.
Aforementioned cable is to insert slidably in this outer tube under the state that has suitable friction between itself and the outer tube, aforementioned initial position adjustment unit is a helical element, itself and aforementioned outer tube screw togather, rotatably be arranged on the aforementioned housing simultaneously, the aforementioned operation unit has: rotatable operation knob; And drive disk assembly, it utilizes the rotation of this operation knob and moves on the S. A. direction of operation knob, links each cable that links with the slide block that is arranged at respectively on the right and left lamp units simultaneously, does not therefore need electric control unit, can cost-cutting.In addition, can simultaneously and carry out the optical axis adjustment of right and left lamp on above-below direction equally.
The aforementioned operation unit has: rotatable operation knob; And drive disk assembly, it utilizes the rotation of this operation knob and moves on the S. A. direction of operation knob, link with aforementioned cable simultaneously, the aforementioned operation knob constitutes and aforementioned drive disk assembly is moved and changes relative position with aforementioned scale, thereby become aforementioned initial position adjustment unit, therefore be the initial position adjustment unit by making the operating unit double as, can reduce number of components, cost-cutting.In addition, can be in the position that disposes operating unit, the indoor adjustment of carrying out initial position of for example car.
Aforementioned housing is installed in the top of lamp outer casing, therefore can easily carry out the adjustment of initial position, and in addition, the cable run distance of the cable of calibration shortens about being used for, and helps cost to reduce.
In addition, the concrete structure and the shape of the each several part shown in aforementioned each embodiment and the variation all only illustrate and are used to implement a specific example of the present invention, can not explain technical scope of the present invention thus with limiting.

Claims (4)

1. the optical axis adjustable device of a lamps apparatus for vehicle, it makes about the lamp unit, it is mobile to tilt, and this lamp unit rotatably is supported in the lamp house by ball joint, and this lamp house is formed by lamp outer casing and the translucent cover that covers this lamp outer casing peristome,
It is characterized in that this optical axis adjustable device has:
Housing;
Slide block, it is set to and can moves up in front and back with respect to this housing;
Efferent, it can be supported on the aforementioned slide block with rotating freely, links with aforementioned lamp unit simultaneously;
Adjustment unit up and down, it makes aforementioned slide block move up in front and back; And
Left and right sides adjustment unit, it makes aforementioned efferent rotation,
Also have:
Operating unit, it has the scale of expression slide block amount of movement;
Cable, it links aforementioned operation unit and slide block; And
The initial position adjustment unit, it does not change the scale position of aforementioned operation unit and aforementioned cable is moved.
2. the optical axis adjustable device of lamps apparatus for vehicle according to claim 1 is characterized in that,
Aforementioned cable inserts in this outer tube slidably with at the state that has suitable friction between itself and the outer tube,
Aforementioned initial position adjustment unit is a helical element, and itself and aforementioned outer tube screw togather, can be rotatably set in simultaneously on the aforementioned housing,
The aforementioned operation unit has: rotatable operation knob; And drive disk assembly, it utilizes on the S. A. direction that is rotated in operation knob of this operation knob and moves, and links each cable simultaneously, and this each cable links with the slide block that is arranged at respectively on the right and left lamp units.
3. the optical axis adjustable device of lamps apparatus for vehicle according to claim 1 is characterized in that,
The aforementioned operation unit has: rotatable operation knob; And drive disk assembly, it utilizes the rotation of this operation knob and moves on the S. A. direction of operation knob, links with aforementioned cable simultaneously,
The aforementioned operation knob constitutes, aforementioned drive disk assembly is moved and change and aforementioned scale between relative position, thereby become aforementioned initial position adjustment unit.
4. according to the optical axis adjustable device of any described lamps apparatus for vehicle in the claim 1 to 3, it is characterized in that,
Aforementioned housing is installed on the top of lamp outer casing.
CN 200810134703 2007-07-19 2008-07-18 Optical axis adjustment device for vehicle lamp Expired - Fee Related CN101348092B (en)

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