CN101839454A

CN101839454A - Bulb installation structure

Info

Publication number: CN101839454A
Application number: CN201010136529A
Authority: CN
Inventors: 山本照亮
Original assignee: Koito Manufacturing Co Ltd
Current assignee: Koito Manufacturing Co Ltd
Priority date: 2009-03-13
Filing date: 2010-03-12
Publication date: 2010-09-22
Anticipated expiration: 2030-03-12
Also published as: JP2010218769A; CN101839454B

Abstract

A kind of bulb installation structure just is installed to assigned position to the relative reflector of bulb accurately with easy structure.Bulb installation structure (100) possesses the lamp socket jig portion (8) that the discharge bulb (10) that inserts is kept, and this lamp socket jig portion (8) comprising: be arranged on bulb insertion hole (6b) inlet of reflector (6) line spring (42), supporting-line spring (42) end (42a) support (44), can open the end of line spring (42) (42b) card fastener (46) only.Lamp socket jig portion (8) determines the position relation of line spring (42), support (44) and fastener (46) as follows: the end (42b) of online spring (42) is by under fastener (46) the card state only, line spring (42) the sidepiece of discharge bulb (10) to crisscross the pushing of intersecting with optical axis direction, simultaneously the flange part of discharge bulb (10) (30) is pushed to optical axis direction, discharge bulb (10) is fixed at crisscross and optical axis direction.

Description

Bulb installation structure

Technical field

The present invention relates to the bulb installation structure of the lamps apparatus for vehicle that automobile etc. uses.

Background technology

Usually in lamps apparatus for vehicle such as head lamp and fog lamp, bulb is remained on assigned position in the tubular patchhole that the reflector bottom forms.The maintenance utilization of this bulb is integral with reflector or carries out with the bulb retainer of split setting at the patchhole of reflector inlet.

Existing bulb retainer is as being used for possessing wired spring to inserting mouthful bulb that inserts to the fixing bulb fixator of reflector.The technology that the line spring adopts as the bulb fixator is for example known to possess: the rotary shaft that extends to the direction vertical in the lower end of inserting mouthful and having from the line spring (with reference to patent documentation 1) of rotary shaft to two arms of the direction extension vertical with the rotating shaft direction of principal axis with optical axis direction.The prior art makes the rotary shaft of line spring be inserted in the bulb back side of inserting mouth to being pressed into around the direction rotation of axle and arm, thus, bulb is fixed bulb to optical axis direction the place ahead application of force to reflector.

Patent documentation 1: the spy opens flat 9-270201 communique

But in lamps apparatus for vehicle in order to give full play to the performance of bulb, in other words in order to give full play to the luminous intensity distribution performance of light fixture, then wish not only the fixing relative reflector of bulb in the position of optical axis direction, and with the vertical direction of optical axis direction on also to be fixed on assigned position to the relative reflector of bulb.

To this, in the prior art, since utilize the line spring the back side of bulb to optical axis direction the place ahead application of force, so can make the positioning accuracy height of optical axis direction, but see that from the viewpoint that improves the lamp distribution performance more just there is the leeway of improvement the location of then vertical with optical axis direction direction.As the method that bulb is positioned to the direction vertical with optical axis direction, considering has such method: by inserting wedge members with the gap of bulb to patchhole bulb to the side of inserting mouth push next on the direction vertical with optical axis direction fixing bulb.But at this moment as the bulb fixator and owing to being other wedge members, so the problem that has increase part number and structure to complicate with the line spring.

Summary of the invention

The present invention is that the inventor develops based on this understanding, and its purpose is to provide a kind of technology, just the relative reflector of bulb is installed to assigned position accurately with easy structure.

In order to solve above-mentioned problem, the bulb installation structure of the present invention's one form is installed to assigned position to the relative reflector of bulb, this reflector is formed with the patchhole of the tubular that inserts bulb in the bottom, wherein, possesses the bulb maintaining part that the bulb that inserts is kept, this bulb maintaining part comprises: the elastomeric element that is arranged on the roughly wire of patchhole inlet, support the distolateral support of this elastomeric element one, can open fastener that another distolateral card of this elastomeric element is ended, the bulb maintaining part determines elastomeric element as follows, the position relation of support and fastener: under another distolateral state that is ended by the fastener card of this elastomeric element, elastomeric element from the sidepiece of the outstanding bulb of patchhole to crisscross the pushing of intersecting with optical axis direction, simultaneously the flange part of bulb is pushed to optical axis direction, fixed the crisscross and optical axis direction of bulb thus.

According to this form, can just be installed to assigned position to the relative reflector of bulb accurately with easy structure.

In above-mentioned form, elastomeric element also can be that fulcrum has tension force ground and reels to bulb sidepiece and flange part another is distolaterally ended by the fastener card with the support.So then can just be installed to assigned position to the relative reflector of bulb accurately with easy operation.

In above-mentioned form, the scope that elastomeric element and bulb sidepiece join also can be below the half cycle of bulb sidepiece.Thus, can improve the crisscross positioning accuracy of discharge bulb.

In above-mentioned form, the flange part that at least one of support and fastener also can relative bulb and the bearing surface of elastomeric element stagger in optical axis direction the place ahead.Thus, can improve the positioning accuracy of the optical axis direction of discharge bulb.

In above-mentioned form, elastomeric element also can be provided with the conductive part with the starter cover conducting of discharge bulb.Thus, owing to just make one-piece type discharge bulb of starter and the conducting of starter cover with easy structure, so can deal with noise via the starter cover.

According to the present invention, can just be installed to assigned position to the relative reflector of bulb accurately with easy structure.

Description of drawings

Fig. 1 is the summary vertical sectional view that possesses the lamps apparatus for vehicle of embodiment 1 bulb installation structure;

Fig. 2 is the exploded perspective view of seeing from the left back top of embodiment 1 bulb installation structure;

Fig. 3 is the summary back view of bulb installation structure;

Fig. 4 (A) is the summary back view of bulb installation structure, and Fig. 4 (B) is the approximate three-dimensional map of seeing from the left back top of bulb installation structure;

Fig. 5 (A) is the summary left side view of bulb installation structure, and Fig. 5 (B) is the local summary right side view of bulb installation structure;

Fig. 6 (A) is the summary back view of embodiment 2 bulb installation structures, and Fig. 6 (B) is the approximate three-dimensional map of seeing from the left back top of bulb installation structure;

Fig. 7 (A) is the approximate three-dimensional map of seeing from the left back top of embodiment 3 bulb installation structures, and Fig. 7 (B) is the summary left side view of bulb installation structure;

Fig. 8 (A) is the approximate three-dimensional map of seeing from the right back below of variation bulb installation structure, and Fig. 8 (B) is the summary right side view of bulb installation structure.

Symbol description

X optical axis 6 reflector 6b bulb insertion holes 8 lamp socket jig portions

8a bulb insertion hole 10 discharge bulb 10a bulb body 10b base portion

30 flange parts, 36 large-diameter portions, 42

line spring

42a, 42b end

42c bend 42c1 optical axis direction force section 42c2 rake 44 supports

44a bolster 44a1 shaft head 44b pressing plate 46 fasteners

46a base portion 46b card claw stop 46c locking surface portion 50 starter circuits

50a covers 100 bulb installation structures

The specific embodiment

Below, Yi Bian with reference to accompanying drawing suitable embodiments of the invention are described on one side.Same or equal structural detail, parts and the processing that each accompanying drawing is represented then pays prosign and suitably the repetitive description thereof will be omitted.Embodiment does not limit invention but illustration, and all features that embodiment recorded and narrated and combination thereof might not be the restrictions to the essence of invention.

(embodiment 1)

Fig. 1 is the summary vertical sectional view that possesses the lamps apparatus for vehicle of embodiment 1 bulb installation structure.Following the direction of illumination of light fixture (left side of Fig. 1) as light fixture the place ahead, its opposition side (right side of Fig. 1) is illustrated as the light fixture rear.Towards light fixture the place ahead the right side is called the light fixture right side, the left side is called the light fixture left side.Fig. 1 represents to see from the light fixture left side section of the lamps apparatus for vehicle 1 that the vertical plane of involved lamp optical axis X dissects.

As shown in Figure 1, lamps apparatus for vehicle 1 possesses the lamp main body 2 of opening forwards, and diffuser 4 is installed on this lamp main body 2, its front opening part is covered and forms lamp house 3.Lamp main body 2 tilts to be provided with versatilely reflector 6 relatively in lamp house 3.Be exactly that reflector 6 utilizes by the adjustment screw rod 2a of lamp main body 2 free rotary ground supportings, axle 2b, make leveling driver 2c that a 2b moves forward and backward and not shown rotating fulcrum portion and supported by lamp main body 2 specifically.When the optical axis X to light fixture initially adjusts, utilize to adjust the rotation of screw rod 2a, the optical axis X that causes in the inclination of proofreading and correct by vehicle utilize the driving of leveling driver 2c when tilting and make reflector 6 relatively lamp main body 2 suitably inclinations move.

Reflector 6 has the reflecting surface 6a as the paraboloid of revolution shape of central shaft with the optical axis X of light fixture.Be formed with the tubular bulb insertion hole 6b as the center in the rear portion of reflector 6 central authorities (bottom) with optical axis X.Reflector 6 has the lamp socket jig portion 8 (bulb maintaining part) of ring-type at the inlet of bulb insertion hole 6b.Lamp socket jig portion 8 can be splits with reflector 6 also.

Be formed with the bulb insertion hole 8a as the tubular at center with optical axis X in lamp socket jig portion 8, discharge bulb 10 passes bulb insertion hole 8a from the light fixture rear can load and unload relative reflector 6 installations in ground with bulb insertion hole 6b.Discharge bulb 10 utilizes lamp socket jig portion 8 and is maintained at assigned position in the bulb insertion hole 6b of reflector 6.It is to make the optical axis of discharge bulb 10 consistent with optical axis X that this assigned position is set to, and makes the focal position consistent location of the illuminating part and the reflector 6 of discharge bulb 10.

Discharge bulb 10 is bulb (so-called HID bulbs: High IntensityDischarge Lamp) that the metal halide bulb etc. that comprises the base portion 10b of bulb body 10a and supporting bulb body 10a utilizes arc discharge.Front end at discharge bulb 10 is provided with the lampshade 12 of blocking from the discharge bulb 10 direct light that forwards penetrate.In the zone that reflector 6 exists the widening parts 14 with peristome is fixed on lamp main body 2 or the diffuser 4, thus, the regional relative the place ahead covering between the front openings portion of lamp main body 2 and the reflector 6.

In the rear portion of lamp main body 2 central authorities and be that the position corresponding with

bulb insertion hole

6b, 8a is formed with peristome 16, discharge bulb 10 can be implemented via peristome 16 to the loading and unloading of discharge bulb 10 to the loading and unloading and the power supply lamp socket described later of reflector 6.18 shutoff of the cover that peristome 16 can be loaded and unloaded.

Be provided with lamp circuit unit 20 in the bottom of lamp house 3, the lamp circuit of lamp circuit unit 20 is connected by electric wire 24 with power supply lamp socket 22 to discharge bulb 10 supply capabilities.Power supply lamp socket 22 can be installed in the base portion 10b of discharge bulb 10 with loading and unloading, can be from lamp circuit unit 20 to discharge bulb 10 supply capabilities by the base portion 10b of lamp socket 22 to discharge bulb 10 that power installed.

Describe the bulb installation structure of embodiment 1 below in detail.Fig. 2 is the exploded perspective view of seeing from the left back top of embodiment 1 bulb installation structure.Fig. 3 is the summary back view of bulb installation structure.Fig. 4 (A) is the summary back view of bulb installation structure, and Fig. 4 (B) is the approximate three-dimensional map of seeing from the left back top of bulb installation structure.Fig. 5 (A) is the summary left side view of bulb installation structure, and Fig. 5 (B) is the local summary right side view of bulb installation structure.Fig. 2 is the figure of line spring 42 when being in open state, and Fig. 3 is the figure of line spring 42 when being in card and ending state.Line spring 42 when middle of Fig. 4 (A) and Fig. 4 (B) are in open state is represented with black thick dashed line.And in Fig. 4 (A), omitted the diagram of pressing plate 44b in order to describe.

Bulb installation structure 100 is installed to assigned position to discharge bulb 10 relative reflectors 6, and reflector 6 is formed with the bulb insertion hole 6b of the tubular that inserts discharge bulb 10 in the bottom, and possessing as the bulb maintaining part has lamp socket jig portion 8.

The structure of discharge bulb 10 at first is described.As shown in Figure 2, discharge bulb 10 includes the base portion 10b of bulb body 10a and supporting bulb body 10a.Be formed with flange part 30 at base portion 10b.Be formed with in the upper end of flange part 30 and be used for carrying out the notch part 32 of discharge bulb 10 location around optical axis X, and a little more rely on the notch part 34 that the right side is formed with discharge bulb specification identification usefulness in upper end than flange part 30.Be formed with under the state that discharge bulb 10 is inserted into

bulb insertion hole

6b, 8a from the outstanding large-diameter portion 36 of bulb insertion hole 8a at base portion 10b.Large-diameter portion 36 have be used for being electrically connected with power supply lamp socket 22 and from the lamp circuit unit 20 electric power of supplying with to the lamp holder 38 of bulb body 10a transmission.

The structure of lamp socket jig portion 8 then is described.As shown in Figures 2 and 3, lamp socket jig portion 8 is set at the bulb insertion hole 6b inlet of reflector 6, includes: body 40, line spring 42 (elastomeric element), support 44, fastener 46 and spring press section 48.Lamp socket jig portion 8 concerns with the position of following structures shape line spring 42, support 44 and fastener 46: the end of online spring 42 is by under the fastener 46 cards state only, line spring 42 from the sidepiece of the outstanding discharge bulb 10 of bulb insertion hole 8a to crisscross the pushing of intersecting with optical axis direction, simultaneously the flange part 30 of discharge bulb 10 is pushed to optical axis direction, fixed the crisscross and optical axis direction of discharge bulb 10 thus.Below be elaborated.

Body 40 is set at the peripheral edge portion of the bulb insertion hole 6b of reflector 6, is to the outstanding cylinder-like part in light fixture rear, has been formed centrally bulb insertion hole 8a therein.On body 40, be formed with the bulb mount pad 40a that carries out discharge bulb 10 location with flange part 30 butts of discharge bulb 10 at the peripheral edge portion of bulb insertion hole 8a.

The bulb mount pad 40a of lamp socket jig portion 8 comprises: circumferentia 40b, positioning convex portion 40c, location perisporium 40d, alignment pin 40e and identification pin 40f.Discharge bulb 10 is being inserted under the state of bulb insertion hole 8a, circumferentia 40b is relative with the light fixture front side tabular surface of flange part 30.Positioning convex portion 40c is with the optical axis X triangle protuberance that to be the center form at circumferentia 40b at interval by equal angles (120 °), by carrying out the location of the optical axis direction of discharge bulb 10 with flange part 30 butts of discharge bulb 10.Present embodiment is provided with three positioning convex portion 40c.The shape of positioning convex portion 40c, be provided with number, the configuration then be not particularly limited.

Location perisporium 40d is the perisporium with footpath bigger a little than flange part 30 outer peripheral faces of discharge bulb 10.Location perisporium 40d is formed on from circumferentia 40b to body 40 rear end face 40g.Location perisporium 40d is at the notch part 40d1 and the notch part 40d2 that nearby are formed with Rack respectively of support 44 and fastener 46.And location perisporium 40d is that the center is formed with location division 40d3 at interval by equal angles (90 °) with optical axis X.

Alignment pin 40e is used for engaging with the notch part 32 of discharge bulb 10 protuberance around the optical axis location that carries out discharge bulb 10.Identification pin 40f is used for engage with the notch part 34 of discharge bulb 10 carrying out the protuberance that discharge bulb 10 specifications are discerned.The rear end face 40g of body 40 is configured under the state of the flange part 30 that makes discharge bulb 10 and the positioning convex portion 40c butt of lamp socket jig portion 8 to become a face with the light fixture rear side tabular surface of flange part 30.Part at body 40 outer peripheral faces is provided with notch part 40h.

Support 44 at the rear end face 40g of body 40 nearby is provided with spring press section 48.Spring press section 48 has end side press surface 48a and bend side press surface 48b.The movable range of spring press section 48 restraining line springs 42 as described later, is configured to: online spring 42 is converted to when card ends state and is and end side press surface 48a butt, online spring 42 be converted to open state constantly then with bend side press surface 48b butt.

Line spring 42 is elastomeric elements of wire roughly, possesses: the end 42a that links with support 44, be end 42a opposition side the end and can open the end 42b, the bend 42c that is connected end 42a and end 42b that end with fastener 46 cards.Shown in Fig. 4 (A), end 42a is wound on support 44 supportings described later and links with support 44 epaxially, and line spring 42 can be that fulcrum ground rotates with support 44.42b its front end in end is bent to roughly コ word shape, and this コ word shape partly tangles fastener 46 card claw stops described later and line spring 42 is ended by fastener 46 cards.

Bend 42c is generally along the inner peripheral surface bending of bulb insertion hole 8a top.Shown in Fig. 2, Fig. 4 (A), Fig. 4 (B), when being configured to online spring 42 and being in open state, the curvature of large-diameter portion 36 sides of the ratio of curvature discharge bulb 10 of bend 42c inboard is little.And shown in Fig. 3, Fig. 5 (A), Fig. 5 (B), bend 42c comprises: and two optical axis direction force section 42c1 of the light fixture rear side tabular surface butt of flange part 30 and the rake 42c2 that between two optical axis direction force section 42c1, tilts to prolong to the light fixture rear side from the light fixture rear side tabular surface of flange part 30.

Support 44 possesses bolster 44a and pressing plate 44b.As shown in Figure 3, from the light fixture rear, bolster 44a is set at the lower right of body 40.Shown in Fig. 5 (B), bolster 44a also is highlighted setting to the biasing surface 49 that staggers in light fixture the place ahead towards the light fixture rear and to the direction parallel with optical axis direction from the rear end face 40g than body 40 with extending.Bolster 44a has the shaft head 44a1 bigger than other section diameters in the opposition side end of biasing surface 49.Pressing plate 44b has the mouth of insertion at the center, bolster 44a is inserted into this insertion mouth.Line spring 42 is reeled to bolster 44a between biasing surface 49 and pressing plate 44b, and the anti-principal vertical line spring 42 of pressing plate 44b comes off from

bolster

44a, and 42 distortion of anti-principal vertical line spring.Also can form as one bolster 44a and pressing plate 44b.

Fastener 46 possesses base portion 46a and card claw stop 46b.Base portion 46a is at the lower end side of body 40 and the plate-shaped member that is installed in its side and extends to the left and right directions of light fixture.There is the outstanding card claw stop 46b that is provided with above the opposition side end of area side in base portion 46a body 40 in the end of left and right directions.Card claw stop 46b gives prominence to upward above base portion 46a and front end extends to light fixture the place ahead, has roughly circular-arc medial surface.Come restraining line spring 42 to change by being in the medial surface butt of end 42b and card claw stop 46b that card ends the line spring 42 of state to open state.Therefore, from the light fixture rear, line spring 42 is ended by fastener 46 cards in the lower left of body 40.

Line spring 42 can obtain its elastic force of opposing and card that end 42b is ended by fastener 46 card end state and end 42b from fastener 46 by open open state.When the line spring 42 that is in open state be the fulcrum rotation in order to become card and to end state and with support 44, at the end side press surface 48a of end 42a of assigned position place and spring press section 48 butt.Also be subjected to making the power of rotation behind end 42a and end side press surface 48a butt, line spring 42 strains and end 42b arrive fastener 46.Tangled when end 42b blocks claw stop 46b, line spring 42 becomes card and ends state.End under the state light fixture rear side tabular surface butt of the optical axis direction force section 42c1 of the bend 42c of line spring 42 and flange part 30, the rake 42c2 of line spring 42 and the large-diameter portion of discharge bulb 10 36 side butts at card.

When making end 42b from fastener 46 disengagements, line spring 42 utilizes the elastic force of self, is that fulcrum makes end 42b rotate to the direction of leaving from fastener 46 with support 44, and becomes open state.Under open state, the optical axis direction force section 42c1 of line spring 42 leaves to the light fixture rear from the light fixture rear side tabular surface of flange part 30, and rake 42c2 leaves from the side of large-diameter portion 36.Be fulcrum when rotating in order to become open state with support 44 when being in line spring 42 that card ends state, at assigned position, the bend side press surface 48b butt of bend 42c and spring press section 48, limit excessive rotation.

At this, line spring 42 is when being in card and ending state, because strain and the medial surface of bend 42c becomes along the state of large-diameter portion 36 edgewise bends of discharge bulb 10.As shown in Figure 3, line spring 42 is set for: line spring 42 is become not inserting discharge bulb 10 under the situation that card ends state, the medial surface of bend 42c from the inner peripheral surface of bulb insertion hole 8a by inboard.Therefore, be inserted into

bulb insertion hole

6b, 8a at discharge bulb 10, and line spring 42 is when becoming card and ending state, the side of large-diameter portion 36 becomes by to the direction of intersecting with optical axis (among Fig. 3 downward) application of force.Thus, can carry out the crisscross location of discharge bulb 10.

The large-diameter portion 36 of the bend 42c coiling discharge bulb 10 that extends from support 44 of line spring 42 and being ended by fastener 46 cards.At this moment, the large-diameter portion 36 of line spring 42 and the base portion 10b scope of joining is below the half cycle of large-diameter portion 36 sidepieces.Therefore, line spring 42 is pushed the power of large-diameter portion 36 sides and is not disperseed, active force that can be bigger in addition to discharge bulb 10, but also can fix on certain orientation to application of force direction to discharge bulb 10.Thus, can improve the crisscross positioning accuracy of discharge bulb.

Because when line spring 42 becomes card only during state, the light fixture rear side tabular surface butt of the optical axis direction force section 42c1 of bend 42c and flange part 30, thus the light fixture front side tabular surface that can make flange part 30 stably with the positioning convex portion 40c butt of bulb mount pad 40a.Thus, can improve the positioning accuracy of discharge bulb 10 optical axis directions.

And shown in Fig. 5 (A), be in that card ends the end 42b of line spring 42 of state and the card claw stop 46b of fastener 46 is the position butts that stagger to light fixture the place ahead a little at the light fixture rear side tabular surface than flange part 30.That is, fastener 46 opposing flanges portions 30 stagger in optical axis direction the place ahead with the bearing surface of the optical axis direction force section 42c1 of bend 42c.And shown in Fig. 5 (B), end 42a reels to bolster 44a to the position of staggering in light fixture the place ahead a little at the light fixture rear side tabular surface than flange part 30.That is, support 44 opposing flanges portions 30 stagger in optical axis direction the place ahead with the bearing surface of the optical axis direction force section 42c1 of bend 42c.Therefore, optical axis direction force section 42c1 can be with stronger active force flange part 30 to light fixture the place ahead application of force.Thus, can improve the positioning accuracy of discharge bulb 10 optical axis directions more.

Not only support 44 and fastener 46 the two situations about staggering to optical axis direction the place ahead, and also can the be improved effect of positional precision of some situations about staggering to optical axis direction the place ahead of support 44 and fastener 46.Support 44 and fastener 46 the two stagger or only somely stagger, under only some situations about staggering, be which of support 44 and fastener 46 to be staggered then can suitably select according to the positioning accuracy and the design conditions of necessity.At this, when distance from the bearing surface of flange part 30 and line spring 42 to the optical axis direction of support 44 as a, distance during as b from the bearing surface of flange part 30 and line spring 42 to the optical axis direction of fastener 46, than bearing surface in light fixture the place ahead then distance for just, than bearing surface at the light fixture rear then distance be to bear.At this moment, in order to improve the positioning accuracy of discharge bulb 10 at optical axis direction, preferably from the bearing surface to the support 44 apart from a and from the bearing surface to the fastener 46 distance b satisfy the relation of a+b＞0.And support 44 and fastener 46 also can stagger on optical axis direction mutually.

Discharge bulb 10 carries out to the installation of lamp socket jig portion 8 is following.

At first as shown in Figure 2, the end 42b of online spring 42 inserts discharge bulb 10 under the state of fastener 46 disengagings from the light fixture rear towards bulb insertion hole 8a and bulb insertion hole 6b.At this moment, be make respectively that notch part 32 engages with the alignment pin 40e of lamp socket jig portion 8, notch part 34 engage with identification pin 40f ground the flange part 30 of discharge bulb 10 to 8 insertions of lamp socket jig portion.What carry out discharge bulb 10 thus is the location of the direction of rotation at center with optical axis X.Flange part 30 its light fixture front side tabular surfaces by discharge bulb 10 and the positioning convex portion 40c butt of bulb mount pad 40a carry out the location of optical axis direction.Flange part 30 is maintained at its outer peripheral face and the relative position of perisporium 40d, location.Line spring 42 is supported portion 44 and supports under the state that is not subjected to external force.

Then shown in Fig. 4 (A), making the line spring 42 (representing with black thick dashed line) that is in open state is that fulcrum rotates to the arrow A direction with support 44.When line spring 42 turns to assigned position, the end side press surface 48a butt of end 42a and spring press section 48.Under the state of the end 42a of online spring 42 and end side press surface 48a butt during further rotational line spring 42, bend 42c strain, the side butt of rake 42c2 and large-diameter portion 36.So the side of large-diameter portion 36 is tilted the 42c2 of portion and pushes from the top, flange part 30 quilts of discharge bulb 10 are the application of force downwards.Thus, the outer peripheral face of flange part 30 have active force and with the location division 40d3 butt of location perisporium 40d.Consequently discharge bulb 10 is by intersection (vertically) the direction hi-Fix to its optical axis direction.

Along with the side butt of rake 42c2 and large-diameter portion 36, and the light fixture rear side tabular surface butt of optical axis direction force section 42c1 and flange part 30.As the end of line spring 42 42b during near fastener 46, the light fixture rear side tabular surface of flange part 30 is pushed from the light fixture rear by optical axis direction force section 42c1, and the flange part 30 of discharge bulb 10 is by to light fixture the place ahead application of force.Thus, the light fixture front side tabular surface of flange part 30 have active force and with the positioning convex portion 40c butt that forms at circumferentia 40b.Consequently discharge bulb 10 quilts are to its optical axis direction hi-Fix.

Like this, online spring 42 is that the end 42b of line spring 42 was tangled by the card claw stop 46b of fastener 46 after fulcrum had the sidepiece and flange part 30 of tension force ground coiling discharge bulb 10 with support 44, and discharge bulb 10 is to the installation of lamp socket jig portion 8.

If the action of blanket above description architecture then is: in the bulb installation structure 100 of present embodiment, one end of online spring 42 is supported portion 44 supporting and under the state that the other end is ended by fastener 46 cards, line spring 42 to crisscross the pushing of intersecting with optical axis direction, and is pushed large-diameter portion 36 sides of discharge bulb 10 to the flange part 30 of discharge bulb 10 to optical axis direction.Therefore, according to the bulb installation structure 100 of present embodiment, only utilize line spring 42 just can carry out hi-Fix to discharge bulb 10 at crisscross and optical axis direction.Thus, do not increase part number ground and just can be installed to assigned position to the relative reflector of discharge bulb accurately with easy structure.

Line spring 42 is that fulcrum has large-diameter portion 36 sides of tension force ground coiling discharge bulb 10 and flange part 30 and ended by fastener 46 cards with support 44.Thus, so that line spring 42 rotates and the simple and easy method that tangled by fastener 46 just can be discharge bulb 10 to optical axis direction and crisscross pushing.Therefore, the assembling operation efficient of discharge bulb 10 is enhanced.Can dwindle discharge bulb 10 to the working space of reflector 6 fixedly the time.

Online spring 42 is in card when ending state, and the scope that the large-diameter portion 36 of line spring 42 and discharge bulb 10 joins is below the half cycle of large-diameter portion 36 sidepieces.Therefore, push the power of large-diameter portion 36 and do not disperseed, active force that can be bigger in addition to discharge bulb 10, but also can fix on certain orientation to application of force direction to discharge bulb 10.Thus, can improve the crisscross positioning accuracy of discharge bulb 10.And the bearing surface of at least one opposing flanges portion 30 of support 44 and fastener 46 and line spring 42 staggers in light fixture the place ahead.Therefore, can be the flange part 30 of discharge bulb 10 with stronger active force to light fixture the place ahead application of force.Thus, can improve the positioning accuracy of the optical axis direction of discharge bulb 10.

(embodiment 2)

The bulb installation structure of embodiment 2 is provided with anti-principal vertical line spring at fastener and crooks with different with embodiment 1 on the point of locking surface.Present embodiment below is described.Other structures that can be suitable for the structure of the lamps apparatus for vehicle of present embodiment bulb installation structure and discharge bulb and bulb installation structure are then identical with embodiment 1, then pay identical symbol and suitably omit its explanation for the structure identical with embodiment 1.

Fig. 6 (A) is the summary back view of embodiment 2 bulb installation structures, and Fig. 6 (B) is the approximate three-dimensional map of seeing from the left back top of bulb installation structure.

Shown in Fig. 6 (A) and Fig. 6 (B), the bulb installation structure 100 of present embodiment possesses the lamp socket jig portion 8 of the patchhole inlet that is set at reflector 6.Lamp socket jig portion 8 includes: body 40, line spring 42 (elastomeric element), support 44, fastener 46 and spring press section 48.

The fastener 46 of present embodiment possesses base portion 46a, card claw stop 46b and the 46c of locking surface portion.Base portion 46a is at the lower end side of body 40 and the plate-shaped member that is installed in its side and extends to the left and right directions of light fixture.The outstanding card claw stop 46b that is provided with above the opposition side end that has area side of base portion 46a body 40 in the end of left and right directions.Card claw stop 46b gives prominence to upward above base portion 46a and front end extends to light fixture the place ahead, has roughly circular-arc medial surface.Come restraining line spring 42 to change by being in the medial surface butt of end 42b and card claw stop 46b that card ends the line spring 42 of state to open state.The outstanding 46c of locking surface portion that is provided with on the end of base portion 46a.(left side among Fig. 4 (A)) side of the 46c of locking surface portion is continuous with card claw stop 46b, and the end 42a direction of another (right side among Fig. 4 (A)) lateral plate tool directed line spring 42 extend with reflector 6 opposite planar.The 46c of this locking surface portion be in part butt near the card claw stop 46b of line spring 42 that card ends state.

Online spring 42 is that fulcrum rotates and after bend 42c had large-diameter portion 36 sidepieces and flange part 30 of tension force ground coiling discharge bulb 10, the end 42b of line spring 42 was tangled by the card claw stop 46b of fastener 46 with support 44.Under this state, the bend 42c of line spring 42 pushes the light fixture rear side tabular surface of discharge bulb 10 when large-diameter portion 36 sides of discharge bulb 10 are pushed downwards to optical axis direction the place ahead.Therefore, line spring 42 is subjected to the power of pushing upward from the side of large-diameter portion 36, and is subjected to the power of pushing to the optical axis direction rear from flange part 30.Therefore, partly being applied with card claw stop 46b from card claw stop 46b and near the card claw stop 46b of bend 42c side is the power of fulcrum to light fixture rear side torsional direction.If the nearby part of card claw stop 46b is crooked to the optical axis direction rear, then line spring 42 can be escaped discharge bulb 10 to optical axis direction and crisscross power of pushing sometimes.

To this, fastener 46 possesses the 46c of locking surface portion in the present embodiment, and is in the card claw stop 46b part butt nearby that card ends the line spring 42 of state.Therefore, can suppress this part crooks to the optical axis direction rear.Thus, can carry out discharge bulb 10 more reliably in optical axis direction and crisscross location.

If the action of blanket above description architecture then is: in the bulb installation structure 100 of present embodiment, fastener 46 possesses the 46c of locking surface portion that extends and contact with line spring 42 to the end of line spring 42 42a side, is fulcrum and being crooked with inhibition line spring 42 with fastener 46.Therefore, according to present embodiment, on the basis of embodiment 1 effect, can carry out the optical axis direction of discharge bulb 10 and the effect of crisscross location more reliably in addition.

(embodiment 3)

The structure of the discharge bulb that bulb installation structure was suitable for of embodiment 3 is different with embodiment 1 and 2.Present embodiment below is described.The structure that can be suitable for the lamps apparatus for vehicle structure of present embodiment bulb installation structure and bulb installation structure is identical with embodiment 1, then pays identical symbol and suitably omits its explanation for the structure identical with embodiment 1.

In recent years, the starter circuit and the bulb of the discharge of handlebar control discharge bulb are provided with the all-in-one-piece situation.Fig. 7 (A) is the approximate three-dimensional map of seeing from the left back top of embodiment 3 bulb installation structures, and Fig. 7 (B) is the summary left side view of bulb installation structure.The discharge bulb 10 of present embodiment is installed in the starter circuit 50 that is used to control its discharge the rear end of discharge bulb 10.The situation of this discharge bulb 10 is, make the line spring around the axle rotation of extending with the optical axis vertical direction and the line spring in this existing structure that push at the back side of discharge bulb 10, the line spring rotates and the obstacle of the application of force because starter circuit 50 becomes, so can not position installation accurately possessing the discharge bulb 10 relative reflectors 6 that starter circuit 50 is arranged.

But the bulb installation structure of the various embodiments described above is the line spring to be centered on to the bolster with the extension of optical axis parallel direction rotate, and the structure of discharge bulb 10 to the optical axis direction and the crisscross application of force.Thus, the rear end face of lamp socket jig portion 8 and the space between the starter circuit 50 can make the line spring rotate and with discharge bulb 10 butts.Therefore, even in the rear end of discharge bulb 10 starter circuit 50 is set, starter circuit 50 can not become the obstacle of the rotation of line spring and the application of force yet.Therefore, by adopting the bulb installation structure of the various embodiments described above,, also can be installed to assigned position accurately with the relative reflector 6 of easy structure even possess the discharge bulb 10 of starter circuit 50.

The line spring 42 of present embodiment also can be provided with not shown plate-shaped springs (conductive part).Plate-shaped springs via lamp socket jig portion 8 with reflector 6 conductings.Discharge bulb 10 contacts with the electric conductivity cover 50a (starter cover) of starter circuit 50 by leaf spring, when the cover 50a of starter circuit 50 becomes ground wire, then can also interdict the noise that produces at bulb body 10a by cover 50a.Consequently just can deal with noise via cover 50a with easy structure.

The present invention is not limited to the foregoing description, also can make up each embodiment, or carry out the distortion of various design alterations etc. according to insider's knowledge, and its combination or the embodiment that is out of shape are also comprised by scope of the present invention.By between each above-mentioned embodiment and above-mentioned each embodiment and the new embodiment that combination produced of following variation all have the embodiment and the variation effect separately of combination.

(variation 1)

Bulb installation structure 100 for above-mentioned each present embodiment can be enumerated following variation.Fig. 8 (A) is the approximate three-dimensional map of seeing from the right back below of variation bulb installation structure, and Fig. 8 (B) is the summary right side view of bulb installation structure.

Shown in Fig. 5 (B), the line spring 42 of reeling to support 44 in the various embodiments described above is that a part of extending to end 42a side from support 44 is configured in the light fixture front side, being configured in the light fixture rear side and intersecting to the part of bend 42c side extension from support 44.To this, present embodiment is then shown in Fig. 8 (A) and Fig. 8 (B), the line spring 42 of reeling to support 44 is that a part of extending to end 42a side from support 44 is configured in the light fixture rear side, being configured in the light fixture front side and intersecting to the part of bend 42c side extension from support 44.Thus, the effect of to the part of end 42a side extension the part of extending to bend 42c side being pushed to light fixture the place ahead from support 44 is arranged.Therefore, the power that line spring 42 is pushed discharge bulb 10 can be strengthened, the positioning accuracy of discharge bulb 10 can be improved more.

(other variation)

Other light fixtures such as fog lamp as lamps apparatus for vehicle head lamp have been described in the various embodiments described above, even but then can access the action effect same with each embodiment by the structure that adopts and each embodiment is same.

Claims

1. a bulb installation structure is installed to assigned position to the relative reflector of bulb, and this reflector is formed with the patchhole of the tubular that inserts bulb in the bottom, it is characterized in that,

Possesses the bulb maintaining part that the bulb that inserts is kept, this bulb maintaining part comprises: be arranged on the roughly wire of described patchhole inlet elastomeric element, support the distolateral support of this elastomeric element one, can open fastener that another distolateral card of this elastomeric element is ended

Described bulb maintaining part determines the position relation of described elastomeric element, described support and described fastener as follows: under another distolateral state that is ended by the fastener card of elastomeric element, elastomeric element from the sidepiece of the outstanding bulb of patchhole to crisscross the pushing of intersecting with optical axis direction, simultaneously the flange part of bulb is pushed to optical axis direction, fixed the crisscross and optical axis direction of bulb thus.

2. bulb installation structure as claimed in claim 1 is characterized in that, described elastomeric element is that fulcrum has tension force ground and reels to bulb sidepiece and flange part another is distolaterally ended by described fastener card with described support.

3. bulb installation structure as claimed in claim 1 or 2 is characterized in that, the scope that described elastomeric element and bulb sidepiece join is below the half cycle of bulb sidepiece.

4. bulb installation structure as claimed in claim 1 or 2 is characterized in that, the flange part of at least one relative bulb of described support and described fastener and the bearing surface of elastomeric element stagger in optical axis direction the place ahead.

5. bulb installation structure as claimed in claim 1 or 2 is characterized in that, described elastomeric element is provided with the conductive part with the starter cover conducting of discharge bulb.

6. bulb installation structure as claimed in claim 3 is characterized in that, the flange part of at least one relative bulb of described support and described fastener and the bearing surface of elastomeric element stagger in optical axis direction the place ahead.

7. bulb installation structure as claimed in claim 3 is characterized in that, described elastomeric element is provided with the conductive part with the starter cover conducting of discharge bulb.

8. bulb installation structure as claimed in claim 4 is characterized in that, described elastomeric element is provided with the conductive part with the starter cover conducting of discharge bulb.