CN1084689C - Mounting construction of rear light on bicycle - Google Patents

Abstract

To reduce the weight of a vehicle body frame, and to reduce the oscillation transmitted to a light by extending a storage box rearward of the vehicle body frame, swelling it downwardly, and fitting the light to a rear external wall of the storage box. A storage box 50 comprising an upper half part 51 and a lower half part 52 is fitted to an upper part rearward of a vehicle body frame 2, and a rear combination lamp 70 of a light is fitted to a rear wall of the upper half part 51. The upper half part 51 is provided with a forwardly inclined upper edge part 53 to load a seat 16, and a rear extension part 54 which is extended rearward of the vehicle body frame 2 and also extended downwardly. The lower half part 52 is provided with a swollen part 55 swollen downward of the vehicle body frame 2, and a plate part 56 to cover a lower end of the rear extension part 54 of the upper half part 51. The overall length of the vehicle body frame 2 and the weight is reduced by extending the storage box 2 rearward of the vehicle body frame 2, and swelling the storage box downwardly. The oscillation to be transmitted from the vehicle body frame 2 to the rear combination lamp 70 can be reduced.

Description

The installation constitution of the lighting fixture of rear vehicle

The present invention relates to a kind of installation constitution of lighting fixture of rear vehicle.

For the installation constitution of the lighting fixture of rear vehicle, it is known that for example Japanese Patent " is opened flat 2-117279 number " " the parking light arrangement of automatic two-wheeled cycle " of communique in fact.The purpose of above-mentioned technology is, a kind of parking light arrangement that makes the automatic two-wheeled cycle that is further enhanced from the visual confirmation at rear is provided.As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4 of this communique, this arrangement comprises: car body frame 2; Be located at 2 vehicle frame 2a, the 2a at the rear portion of this car body frame 2; The holding components 10,10 that extends to top from the rear end of these vehicle frames 2a, 2a; Cross over the support 12 of these holding componentss 10,10; Be installed in the top of this support 12 and the mounted panel 15 on vehicle frame 2a, the 2a; Be located at the parking light 16 on this mounted panel 15; The holding components 20 that extends downwards from vehicle frame 2a, 2a rear end; Be installed in the mounted panel 22 on this holding components 20; Be located at the taillight 26 on this mounted panel 22; And be configured in this taillight 26 about signal lamp 32,32.

In above-mentioned technology, because the structure of mounted panel 15 that is provided with parking light 16 and the mounted panel 22 that is provided with taillight 26 is installed at the rear portion that is a kind of vehicle frame 2a, 2a in car body frame 2, so exist vehicle frame 2a, 2a rearward to prolong, and make weight increase such shortcoming.

Again because the lower end of mounted panel 15 is installed in the rear end of vehicle frame 2a, 2a, so, also exist vibrations can be directly delivered to shortcoming such on the parking light 16 from vehicle frame 2a, 2a.

Therefore, the 1st purpose of the present invention is that a kind of lighting fixture installation constitution of having realized the lightweight of car body frame and having reduced the rear vehicle that is delivered to the vibrations on the lighting fixture is provided.

On the other hand, as Vehicular lighting system, for example Japanese Patent " open in fact flat 7-14503 " communique " automobile taillight " has been known to the crowd.

Above-mentioned technology is about a kind of, by utilizing the direct sunshine of coming from the bulb irradiation and by the reflected light that catadioptre launched, and can obtain the rear light device of high brightness.As shown in Fig. 2 of this communique, on the taillight 1 at the rear portion that is located at car body 2, the interior lens 10 that are provided with the outer lens 5 that forms for the surfaces mate that covers this taillight 1 and car body 2 and are being provided with at the clear width certain distance of this outer lens 5.

In recent years, from improving this requirement of aesthetic appearance of vehicle, in the combination of carrying out between outer lens and the interior lens, it is the problem of homology look that people have also considered for example to make the color of lens such as the parking light of rear combination lamp and turn signal lamp.But, can exist light the such problem of luminance nonuniformity to occur at outer lens easily because of from interior lens, launching coloured and when making up mutually for the lens of different colours.

On the other hand, be to improve the comfort feature that vehicle uses, for example wish to increase the volume of load chamber, also require to realize making distance between outer lens shown in the above-mentioned prior art 5 and interior lens 10 miniaturization of lighting fixture such as to dwindle.

Therefore, the 2nd purpose of the present invention be, provide a kind of when can preventing the luminance nonuniformity phenomenon, have miniaturization the lighting fixture installation constitution of Vehicular lighting system.

For reaching above-mentioned the 1st purpose, the feature of first scheme of the present invention is: make and accommodate case and rearward prolong from the car body frame and bloat downwards simultaneously; And on accommodating the rear portion outer wall of case, this installs lighting fixture.

Thus, the total length of car body frame is reduced, realize the lightweight of car body frame; And,, can reduce the vibrations that pass over from the car body frame by lighting fixture is installed on the car body frame through accommodating case.

In alternative plan of the present invention, make the rear portion outer wall of accommodating case become rearward outstanding plane of bending, and lighting fixture is installed along this plane of bending.

Thus, can increase the erection space of lighting fixture, improve the strength of connection when installing, improve visual confirmation simultaneously from the rear.

Third party's case of the present invention is characterized in that: make lighting fixture be considered as " Qian " word shape on overleaf, and have the stopper section of car body rear mask in the inboard of this Qian word shape.

Thus, the operation that the car body rear mask is installed on the lighting fixture is carried out easily, and be realized that easily the outward appearance between lighting fixture and the car body rear mask is harmonious.

For reaching above-mentioned the 2nd purpose, in cubic case of the present invention, with the front of bulb and on the lighting fixture that covers by inboard lens and outside lens, the bight of facing mutually with outside lens that makes inboard lens than the wall thickness of its periphery some.

Thus, the light that has passed through thinner wall section that should the inboard lens becomes light color light, it with come and be harmonious to form the light of normal concentration from the heavy colour light that kink radiates out from the refraction of the other parts of lens, thereby can prevent from the luminance nonuniformity phenomenon to occur at the kink of lens.

In the 5th scheme of the present invention, make on inboard lens and bight, the end corresponding part of outside lens face, form the plane of bending of convex or concavity.

Thus, the light of having advanced in inboard lens can be come by diffusion on the plane of bending of the convex of the end of inboard lens kink or concavity, make on the end of inboard lens heavy colour light can not occur, thereby can prevent from the lens end, to occur the luminance nonuniformity phenomenon.

In the 6th scheme of the present invention, make inboard lens and outside lens with roughly the same shape near being provided with.

When gap between inboard lens and the outside lens is reduced, passed through the light that inboard lens radiate out and be difficult for being come, and this light concentrated on the lens of the outside by diffusion, make to occur the luminance nonuniformity phenomenon easily.

Again, when making gap between inboard lens and the outside lens than will increase usually the time, in from the showing greatly that linearity has passed through inboard lens and outside lens of bulb and obvious appreciiable part light, owing between the area of the area of the shinny part of inboard lens and the shinny part of outside lens, have area difference, so become dual luminously, it is as the luminance nonuniformity phenomenon and can be in sight.Usually, people are plans of taking to have considered simultaneously the golden mean of the Confucian school of above-mentioned two kinds of luminance nonuniformity phenomenons.

But, because the present invention has the such formation of above-mentioned fourth, fifth scheme, even so be not prone to the luminance nonuniformity phenomenon when gap of the outside between lens reduces in making yet, therefore can be by making inboard lens and outside lens approaching mutually, and when preventing the luminance nonuniformity phenomenon, make the lighting fixture miniaturization.

Fig. 1 is the lateral plan of small size motorcycle of the present invention.

Fig. 2 is the lateral plan that has shown the installation constitution of rear vehicle lighting fixture of the present invention.

Fig. 3 is the main portion amplification profile of rear vehicle of the present invention.

Fig. 4 is a car body back view of the present invention.

Fig. 5 is the block diagram that has shown the rear combination lamp installation relation on rear vehicle of the present invention.

Fig. 6 is a planar view of accommodating the first half of case of the present invention.

Fig. 7 is the planar view of rear combination lamp of the present invention.

Fig. 8 is the cross sectional drawing along the 8-8 line of Fig. 4.

Fig. 9 is an amplification profile of accommodating the support sector of case of the present invention.

Figure 10 is the cross sectional drawing along the 10-10 line of Fig. 4.

Figure 11 is the main portion amplification profile diagram that has shown the effect in interior lens bight of the present invention.

Figure 12 is the main portion amplification profile diagram that has shown the effect of interior lens end of the present invention.

Figure 13 has shown the cross sectional drawing of rear turn signal lamp with the comparative example of interior lens.

Figure 14 is the amplification profile diagram of the main portion of Figure 13.

Below, according to appended drawing example of the present invention is described.In addition, the direction of observation of drawing be by marking symbol the position to deciding.

Fig. 1 is the lateral plan of small size motorcycle of the present invention.

Small size motorcycle 1 (below, note is made " motor scooter 1 "), comprising: basket frame type car body frame 2; Be installed in the front fork 4 on the head pipe 3 of this car body frame 2; Be installed in front-wheel 5 and front fender apron 6 on this front fork 4; The handle 7 that links to each other and be knotted with front fork 4; Be configured in by the bunker oil 8 in the space of each pipe surrounded the basket frame of car body frame 2; Radiator reserve tank 9 and radiator 10; Be configured in the rear, space of basket frame and have the engine installation 12 of liquid-cooled engine 11 in its front portion; The front portion of this engine installation 12 is installed in connecting rod mechanism 13 on the car body frame 2; The rearward end of engine installation 12 is suspended in posterior bumper 14 on the car body frame 2; Be installed in the trailing wheel 15 at the rear portion of engine installation 12; Be configured in the seat 16 on the top, rear portion of car body frame 2; And the body cover 17 that coats car body frame 2.

Body cover 17 comprises: the front shroud 21 that covers the top of a front portion of pipe 3 and front-wheel 5; Cover the inner cover 22 at the rear portion of this front shroud 21; As the left and right sides pedal table top 23 of the low position type stretcher of the foot that is used to lay the driver (in the figure, only having shown, as follows) near the pedal table top of side at the moment; From the outer rim of these pedal table tops 23 extend downwards about table top outer rim 24; Cover the end cover 25 between the lower edge of these table top outer rims 24; Rearward extend and cover the central authorities cover 26 of central authorities of the length direction of car body frame 2 from inner cover 22; Rearward extend and cover the side cover 27 of the two sides, rear portion of car body frame 2 from this central authorities' cover 26; From the outer rim of these side covers 27 extend downwards about lower side cover 28; Be positioned at the rear of these lower side covers 28 and cover the back central authorities cover 29 of the rear end lower of car body frame 2; And be positioned at the top of this back central authorities cover 29 and cover the back overhead guard 30 of the upper rear end of car body frame 2.

Handle 7 comprises: the handle cover 33 that covers handle 7; Be positioned at the top of front shroud 21 and be fixed on transparent paravent 34 on the handle 7; And as the paravent ornamental portion 35 of cap assembly of the front lower that is located at this paravent 34.

Inner cover 22 has the leg guard 22a in the foot the place ahead that covers the driver in its both sides.

In the drawings, symbol 41 is a head lamp; 42 is signal lamp; 43 is fuel door; 44 are ignition plug maintenance lid; 45 is main support; 46 is the air purifier as air filtration plant; 47 is the back clip; 49 is rear mudguard; 70 is rear combination lamp.

Fig. 2 is the lateral plan of installation constitution that has shown the lighting fixture of rear vehicle of the present invention.In the state shown in this figure, be equipped with on the top at car body frame 2 rear portions by what the first half 51 and lower part 52 were constituted and accommodate case 50; Rear combination lamp 70 as lighting fixture is installed on the rear wall of the first half 51.

The first half 51 has: carrying the rising wood that leans forward 53 of seat 16 and at the rear portion extension 54 that also prolongs when car body frame 2 is rearward extended downwards.

Lower part 52 has: bellying 55 that bloats downwards from car body frame 2 and inaccessible plate-like portion 56 of living rear portion extension 54 lower ends of the first half 51.

By the bellying 55 of the above-mentioned first half 51 and lower part 52, form the main resettlement section 57 of accommodating case 55.In this main resettlement section 57, contain the such large-scale article of the safety cap with integral outer appearance size.

By the rear portion extension 54 of the above-mentioned first half 51 and the plate-like portion 56 of lower part 52, accommodate case 50 when car body frame 2 rearward prolongs making, form the resettlement section, rear portion 58 that bloats downwards, in this resettlement section, rear portion 58, contain less safety cap and other little article etc.

Like this, accommodate case 50 and when car body frame 2 rearward prolongs, bloating downwards, and on this accommodates the rear portion outer wall 54a of case 50, install rear combination lamp 70, the total length of car body frame 2 is shortened, realize the lightweight of car body frame 2 by making; And, owing to rear combination lamp 70 is installed on the car body frame 2 through accommodating case 50, so can alleviate vibrations from car body frame 2.

Fig. 3 is the main portion amplification profile of rear vehicle of the present invention.The figure illustrates: in the rear portion of car body frame 2 bolt B 1 ... (" ... " be expressed as a plurality of, as follows) a shape supporter 91 (with reference to Fig. 4) is installed, top at this shape supporter 91, with bolt B 2 ... to be connected with side cover 27 (with reference to Fig. 1) and back clip 47 as the back overhead guard 30 of rear portion cover, and the bottom backstop that will be somebody's turn to do back overhead guard 30 is on the stopper section of rear combination lamp 70 70a (with reference to Fig. 4).

Fig. 4 is the back view of car body of the present invention, this figure only shown back overhead guard be positioned at installation site on door shape supporter the time the section situation.

Rear combination lamp 70 is seen as " Qian " word shape from the back side, in the installed inside of this Qian word shape back overhead guard 30 (with reference to Fig. 3) is arranged.And this combined light 70 has the stopper section 70a of back overhead guard 30, disposes rear turn signal lamp 71,72 on its top, left and right sides, disposes the taillight 73 of the double as parking light of growing crosswise in the bottom.Again, 71a, 72a are the rear turn signal lamp bulb, and 73a, 73a are the taillight parking light bulb of holding concurrently, 74,74 installation portions for back central authorities' covers 29 (with reference to Fig. 1) of the bottom that is arranged on rear combination lamp 30, and 75 for shining the licence plate lamp of below.

Like this, the stopper section 70a of back overhead guard 30 is set by the inboard at the Qian word shape of rear combination lamp 70, back overhead guard 30 is become easily toward the installation exercise on the rear combination lamp 70, and the while can also make the operation that is harmonious of the outward appearance between rear combination lamp 70 and the back overhead guard 30 carry out easily.

Fig. 5 is the block diagram that has shown the installation relation of the rear combination lamp on rear vehicle of the present invention.On the first half 51 of accommodating case 50, installation site as rear combination lamp 70, on the outer wall 54a of rear portion, have central flat face 61, left planar wall 62 and right planar portions 63, on side wall portion 54b, 54b (wherein omitting among the side figure), have left protrusion 64 and right protrusion 65; Has support sector 66,66 at the rear of rear portion extension 54.

Central flat face 61 has medium pore 61a, and left planar portions 62 has upper left quarter hole 62a and lower left quarter hole 62b, and right planar portions 63 has upper right quarter hole 63a and right lower quadrant hole 63b, and left protrusion 64 has the vertical hole 64a in a left side, and right protrusion 65 has right vertical hole 65a.

Again, have on the rear combination lamp 70: the portion that is supported 85,85 (with reference to Fig. 3, wherein a side is omitted) that is used to attach it to central protrusion 76 on the first half 51, upper left protrusion 77, lower-left protrusion 78, upper right protrusion 81, bottom right protrusion 82, left front protrusion 83, right front portion protrusion 84 and case shape.

On central protrusion 76, upper left protrusion 77, lower-left protrusion 78, upper right protrusion 81, bottom right protrusion 82, left front protrusion 83 and right front portion protrusion 84, have mounting hole 76a, 77a, 78a, 81a, 82a, 83a and 84a respectively.

When on the above-mentioned first half 51 of accommodating case 50, installing rear combination lamp 70, in the square hole 61b on facial 61 tops of central flat, embed clamp nut N in perforate in advance, will be inserted into respectively upper left quarter hole 62a and lower left quarter hole 62b and upper right quarter hole 63a and the right lower quadrant hole 63b with the nut portions of the pole S of nut from the inner face side separately of left planar portions 62 and right planar portions 63; And on medium pore 61a, upper left quarter hole 62a, lower left quarter hole 62b, upper right quarter hole 63a, right lower quadrant hole 63b, the vertical hole 64a in a left side and right vertical hole 65a,, and be screwed respectively to mounting hole 76a, 77a, 78a, 81a, 82a, 83a and the 84a of closing.

Be supported portion 85,85 (with reference to Fig. 3, wherein side diagram is omitted), by backstop in the support sector 66,66 of accommodating case 50.

Accommodate the rear portion extension 54 of case 50,,, can install large-scale rear combination lamp thereon with constant weight so have sufficient rigidity owing to be a kind of structure member.

Fig. 6 is a first half planar view of accommodating case of the present invention.The first half 51, the rear portion outer wall 54a of its rear portion extension 54 are rearward outstanding plane of bending, along this plane of bending rear combination lamp 70 (with reference to Fig. 5) are installed.

Here, 2a, 2b are the pole that the first half 51 usefulness are installed on car body frame 2; 2c, 2c are the door shape pole installation portion of car body frame 2; 92 for being fixed on hinge on the car body frame 2 through the first half 51 in that seat 16 (with reference to Fig. 1) bolt B 3, B3 can be installed on the first half 51 with opening and closing; 93 for being fixed on seat snap close piece on the car body frame 2 can installing seat 16 on the first half 51 with opening and closing; B4, B4 are for being fixed on the first half 51 on the bolt on the car body frame 2; B5 is for being fixed on the first half 51 on the bolt on the seat snap close piece 93.

Like this, install rear combination lamp 70, just can increase the attachment face area of rear combination lamp 70, improve the anchoring strength when installing, can also improve visual confirmation simultaneously from the rear by rear portion outer wall 54a along the first half 51.

Fig. 7 is the planar view of rear combination lamp 70 of the present invention.In the figure, being used for backstop lives in the stopper section 70a of back overhead guard 30 (with reference to Fig. 3) and has vertical wall 70b ... with claw 70c At these vertical walls 70b ... with claw 70c ... between, the rear portion of inserting back overhead guard 30.

The rear turn signal lamp 71,72 of rear combination lamp 70, from the rear portion to sidepiece round; And since they be configured in the top of rear vehicle, so that good from the visual confirmation of rear and side.

Fig. 8 is the cross sectional drawing along the 8-8 line of Fig. 4.The figure illustrates between vertical wall 70b that is formed at the stopper section 70a on the rear combination lamp 70 and claw 70c the state when inserting the rise part 30a that is formed on the overhead guard 30 of back.

Like this, by on the 70a of stopper section, inserting rise part 30a, just can be easily the back bottom of overhead guard 30 be fixed on the rear combination lamp 70.

Fig. 9 is an amplification profile of accommodating the support sector of case of the present invention.In the figure, the support sector 66 of accommodating case 50 has insertion groove 66a in the top, is inserted with the antetheca 85a of the portion that is supported 85 of rear combination lamp 70 in this insertion groove 66a.

Like this, by being a kind of formation of in insertion groove 66a, inserting antetheca 85a, rear combination lamp 70 is being installed in when accommodating on the case 50, just can realize positioning operation by chimeric between insertion groove 66a and the antetheca 85a, can make the position between each respective aperture on other installation site shown in Figure 5 involutory mutually, thereby carry out the operation of screw retention easily.

Figure 10 is the 10-10 line cross sectional drawing along Fig. 4.In the figure, rear turn signal lamp 71 comprises: the base station 71c that is integrally formed with catadioptre 71b; Be installed in the lamp jack 71d on this base station 71c; Be installed in the bulb 71a on this lamp jack 71d; Outer lens 71e as the outside lens that cover the outside; And be separated by very little spacing in the inboard of this outer lens 71e and the interior lens 71f of the inboard lens of conduct that disposing.Again, 71g, 71g and 71h are sealing element.

If the ultimate range (gap) between outer lens 71e and the interior lens 71f is made as L, the thickness of interior lens 71f is T, and relational expression: 0＜L≤T is then arranged.

For obtaining the associative perception of rear combination lamp 70 (with reference to Fig. 7), the surface that makes outer lens 71e links to each other then sleekly with the surface of taillight 73 (with reference to Fig. 7) with lens 73b, and to make outer lens 71e be coloured to lens 73b be identical red colour system.

Interior lens 71f is painted to green system, and when lighting a lamp, making the color of the light that has passed through this interior lens 71f and outer lens 71e is orange-yellow (according to JIS D 5500) like this.

Rear turn signal lamp 72 (with reference to Fig. 7) has identical formation (but left and right sides mode difference) with rear turn signal lamp 71, so omit its explanation.

Like this, on rear combination lamp 70, outer lens by making rear turn signal lamp 71,72 is identical red colour system with the color of the lens 73b of taillight 73 usefulness, and the interior lens of green system are set on rear turn signal lamp 71,72, just can accomplish that all when non-lighting a lamp is red colour system, make the outward appearance of rear combination lamp 70 have associative perception, thereby improved appearance property.

Interior lens 71f has thinner wall section 71k on the bight 71j as kink in it helps the scope of light-illuminating.

Thinner wall section 71k is that the exterior side of the bight 71j by lens 71f in making forms breach and obtains.

Again, interior lens 71f has the plane of bending 71n of concavity on the end 71m in it helps the scope of light-illuminating.

Below, the effect of lens 71f in above-described is described.

Figure 11 is the main portion amplification profile diagram that has shown the effect in interior lens bight of the present invention.

The light R of the bight 71j of lens 71f in arriving from the bulb 71a (with reference to Figure 10) of rear turn signal lamp 71 (with reference to Figure 10) is by thinner wall section 71k, air layer A and outer lens 71e.This light note of having passed through behind the outer lens 71e is made R1.

At this moment because light R passed through thinner wall section 71k, make its greenness passed through around the light of normal thickness part light, so the color of having passed through the light R1 behind the outer lens 71e is than normal orange-yellow lighter.

Again, the light R of the last facial 71p of lens 71f in arriving from the bulb 71a of rear turn signal lamp 71 carries out the reflection of repeated multiple times and advances in interior lens 71f, then on the 71j of bight by thinner wall section 71k, further pass through air layer A and outer lens 71e.This light note of having passed through behind the outer lens 71e is made R2.

At this moment, will carry out the reflection of repeated multiple times when advancing in interior lens 71f owing to light R, make the course of light R in interior lens 71f elongated, green thickens gradually, so it is normal orange-yellow denseer to have passed through the color of the light R2 behind the outer lens 71e.

As mentioned above, by making light orange-yellow light R1 and dense orange-yellow light R2 be combined to one, just can make the light in the bight of rear turn signal lamp 71,72 become normal orange-yellow light, make itself and peripheral part on color deep or light, deviation can not occur, thereby the phenomenon of luminance nonuniformity can not occur.

Figure 12 (a) and (b) be shown of the present invention in the lens end effect want portion's amplification profile diagram, wherein (a) shown the end of Figure 10, (b) shown other example of the end of Figure 10.

In figure (a), the light R (in the top side) from the bulb 71a (with reference to Figure 10) of rear turn signal lamp 71 (with reference to Figure 10) arrives interior lens 71f produces reflection, and arrives plane of bending 71n in interior lens 71f; After reflecting again on this plane of bending 71n, logical interior lens 71f is further by air layer A and outer lens 71e.This light note of having passed through behind the outer lens 71e is made R3.

Again, similarly, other light R, R also produce reflection and arrive plane of bending 71n in interior lens 71f; After reflecting again on this plane of bending 71n, by interior lens 71f, further by air layer A and outer lens 71e.These light that passed through outer lens 71e are remembered respectively make R4, R5.

These light R3, R4 are the light that advances towards different separately directions with R5.

Therefore, by plane of bending 71n is set, the light diffusion of having concentrated on the 71m of end is come, thereby prevent from the lens end of rear turn signal lamp 71,72 (with reference to Fig. 7), to occur the phenomenon of luminance nonuniformity.

In figure (b), interior lens 71f, the plane of bending 71q that has convex on the end 71m in it helps the scope of light-illuminating.

The light R (being positioned at the top side) of lens 71f produces reflection in arriving from the bulb 71a (with reference to Figure 10) of rear turn signal lamp 71 (with reference to Figure 10) in interior lens 71f, arrives plane of bending 71q; After reflecting again on this plane of bending 71q, by interior lens 71f, further by air layer A and outer lens 71e.This light note of having passed through behind the outer lens 71e is made R6.

Again similarly, other light R, R also produce reflection in interior lens 71f, arrive plane of bending 71q; After reflecting again on this plane of bending 71q, by interior lens 71f, further by air layer A and outer lens 71e.These light notes of having passed through outer lens are made R7, R8.

These light R6, R7 and R8 are the light that advances to different directions respectively.

Therefore, by plane of bending 71q is set, just the light diffusion of having concentrated on the 71m of end can be come, thereby prevent from the lens end of rear turn signal lamp 71,72 (with reference to Fig. 7), to occur the phenomenon of luminance nonuniformity.

Again, as mentioned above, rear turn signal lamp 71,72 is owing to have plane of bending 71n, the 71q of the thinner wall section 71k of bight 71j as shown in figure 11 and the end 71m shown in Figure 12 (a) and (b), so in Figure 10, even when the ultimate range L between outer lens 71e and the interior lens 71f is dwindled, be not prone to the luminance nonuniformity phenomenon yet.Therefore, can be approaching mutually by lens 71f in making and outer lens 71e, and when preventing the luminance nonuniformity phenomenon, make the compact in size of rear turn signal lamp 71,72.

Figure 13 has shown the cross sectional drawing of rear turn signal lamp with the comparative example of interior lens.In the figure, rear turn signal lamp 100 comprises: the lamp jack 102 that is integrally formed with catadioptre 101; Be installed in the bulb 103 on this lamp jack 102; Be located at the lens installation portion 104,105 in the outside of above-mentioned catadioptre 101; Be installed in the outer lens 106 of the red colour system on these lens installation portions 104,105; And the interior lens 107 of the green that is disposing in the very little distance of the clear width of this outer lens 106 system.

Interior lens 107 have bight 108 and end 109.

Below, the effect of lens 107 in aforesaid is described.

Figure 14 (a) and (b) are the main portion amplification profile diagram of Figure 13, wherein, (a) are the C portion enlarged drawing of Figure 13, (b) are the D portion enlarged drawing of Figure 13.

In figure (a), the light R that sends from the bulb 103 (with reference to Figure 13) of rear turn signal lamp 100 (with reference to Figure 13) is by bight 108, air layer A and the outer lens 106 of interior lens 107.This light note of having passed through behind the outer lens 106 is made R101.

Again, in arriving from the bulb 103 of rear turn signal lamp 100 lens 107 go up facial 111 light R, in interior lens 107, carry out the reflection of repeated multiple times and advance, on bight 108, arrive air layer A, and by outer lens 106 from interior lens 107.To make R102 by the note of the light behind the outer lens 106.

At this moment, owing to will carry out the reflection of repeated multiple times when in interior lens 107, advancing by light R, the course of light R in interior lens 107 prolonged, green is thickened gradually, so it is normal orange-yellow denseer to have passed through the color ratio of the light R102 behind the outer lens 106.

Therefore, be combined to one, the light in the bight 108 of rear turn signal lamp 100 is become than normal orange-yellow viridant orange-yellow by light R101 and light R102, thereby as can be seen, with respect to there being the luminance nonuniformity phenomenon around it.

In figure (b), the light R (being positioned at the top side) of lens 107 produces reflection, arrival par 112 in arriving from the bulb 103 (with reference to Figure 13) of rear turn signal lamp 100 (with reference to Figure 13) interior lens 107 in; After reflecting again on this par 112, by interior lens 107, further by air layer A and outer lens 106.This light note of having passed through outer lens 106 is made R103.

Again similarly, other light R, R also produce reflection in interior lens 107, arrive par 112; After reflecting again on this par 112, by interior lens 107, further by air layer A and outer lens 106.This light note of having passed through outer lens 106 is made R104, R105.

These light R103, R104 and R105 are the light that advances to equidirectional.

Therefore, owing to be provided with par 112, the light of having concentrated on end 109 can produce reflection to equidirectional, it is viridant more orange-yellow than normal orange-yellow light that light on the end 109 of rear turn signal lamp 100 is become, thereby as can be seen with respect to there being the luminance nonuniformity phenomenon on every side.

As the outer lens 106 and the ultimate range L between the interior lens 107 when reducing that make as shown in figure 13, the light that comes out from interior lens 107 becomes and is difficult for diffusion, and its light produces concentrated on outer lens 106, makes to be easy to generate the luminance nonuniformity phenomenon.

Again, when the ultimate range L between outer lens 106 and the interior lens 107 will be increased than normal conditions, from bulb 103 in interior lens 107 and outer lens 106, show linearity greatly before so that in the part light that can obviously see, between the area of the area of interior lens 107 shinny parts and outer lens 106 shinny parts, there is area difference, become dual luminous, thereby as can be seen the uneven phenomenon of sending appears.Usually, above-mentioned two kinds of luminance nonuniformity phenomenons are taked the plan of the golden mean of the Confucian school.

As mentioned above, example shown in Figure 10 is to implement for prevent the luminance nonuniformity phenomenon that takes place on the bight of lens shown in Figure 13 and end in rear combination lamp 70.

In the present invention, as shown in figure 11,, the outside forms thinner wall section 71j by being carried out otch again.Be limited to so but have more than, also can be by the inner face otch being become the circular-arc thinner wall section that forms.

The present invention has following effect owing to having above-mentioned formation.

The installation constitution of the described rear vehicle lighting fixture of first scheme is accommodated case owing to make Prolongation rouses downwards simultaneously from the car body frame to the rear, and accommodates the rear portion outer wall of case at this Upper installation lighting fixture, thus the total length of car body frame is reduced, realization car body frame Lightweight; By lighting fixture is installed on the car body frame through accommodating case, just can again, The vibrations that reduction passes over from the car body frame.

The installation constitution of the described rear vehicle lighting fixture of alternative plan is accommodated case owing to make The rear portion outer wall form to the rear outstanding crooked face, and along this bending face light dress is installed Put, thus enlarged the erection space of lighting fixture, can improve when installing in conjunction with intensity, Improve simultaneously the visual confirmation from the rear.

The installation constitution of the described rear vehicle lighting fixture of third party's case is owing to make the light dress Put and be seen as " Qian " word shape at the back side, and have the car body rear mask in the inboard of this Qian word shape The stopper section, so that the operation of car body rear mask be installed on the lighting fixture carry out easily, and And can realize easily that the outward appearance between lighting fixture and the car body rear mask is harmonious.

Light with rear vehicle of the described Vehicular lighting system of the cubic case of the present invention The device installation constitution is because the bight of facing mutually with outside lens that makes inboard lens is than its week The wall thickness that encloses part is thinner, becomes light so passed through the light of the thinner wall section of inboard lens The light of look, it with come from the refraction of the other parts of lens and from bending section emit dense The light of look is harmonious and forms the light of normal concentration, thereby can prevent from going out in the bending section of lens Existing luminance nonuniformity phenomenon.

The installation constitution of the described lighting fixture of the present invention's the 5th scheme is because at inboard lens With the end of the corresponding part of outside lens face on form the crooked face of convex or concavity, institute Can be in the convex of the end of inboard lens bending section or recessed with the light of in inboard lens, having advanced Be diffused on the crooked face of shape and come, make the end of inboard lens heavy colour can not occur, thus can To prevent the luminance nonuniformity phenomenon occurring in the lens end.

The installation constitution of the described lighting fixture of the 6th scheme is owing to make inboard lens and the outside Lens have roughly the same shape and make their close to each other settings, and owing to have thin The crooked section of the bending section of wall and end bending section is so even make inboard lens and the outside Be not prone to luminance nonuniformity when the gap between the lens dwindles yet, thereby can preventing Make the lighting fixture miniaturization in the time of the luminance nonuniformity phenomenon.

Claims (6)

1. the installation constitution of the lighting fixture of a rear vehicle, accommodate case, have on the automatic two-wheeled cycle of seat being provided with on its rear vehicle, being characterized as of the installation constitution of this lighting fixture: to make the above-mentioned case of accommodating rearward prolong from the car body frame and bloat simultaneously downwards on this top of accommodating case; And on this accommodates the rear portion outer wall of case, lighting fixture is installed.

2. the installation constitution of the lighting fixture of rear vehicle as claimed in claim 1 is characterized in that: above-mentioned rear portion outer wall of accommodating case is rearward outstanding plane of bending, and along above-mentioned lighting fixture is installed on this plane of bending.

3. the installation constitution of the lighting fixture of rear vehicle as claimed in claim 1 or 2, it is characterized by: above-mentioned lighting fixture is seen as the Qian word shape overleaf, and has the stopper section of car body rear mask on the inboard of this Qian word shape.

4. the installation constitution of the lighting fixture of rear vehicle as claimed in claim 1, it is characterized by: in above-mentioned lighting fixture, the front of bulb is covered by inboard lens and outside lens, and the bight of facing mutually with above-mentioned outside lens that makes above-mentioned inboard lens is than the wall thickness of its peripheral part.

5. the installation constitution of the lighting fixture of rear vehicle as claimed in claim 4 is characterized by: on above-mentioned inboard lens and bight, the end corresponding part of above-mentioned outside lens, form the plane of bending of convex or concavity.

6. as the installation constitution of the lighting fixture of claim 4 or 5 described rear vehicles, it is characterized by: make above-mentioned inboard lens and above-mentioned outside lens with essentially identical shape near being provided with.

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