KR100416425B1 - Vehicle lamp - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide a luminaire for a vehicle in which the appearance of the luminaire due to the structure for attaching the bulb socket to the reflector or the like is reduced, and the reflection efficiency of the reflector or the like is improved.

The bulb socket 4 has an L-shaped fitting groove 410 as seen from the side surface formed on the outer circumferential surface of the cylindrical socket body 401, and a socket part with a socket provided in the reflector 2 to which the bulb socket 4 is attached. 21 is provided with the fitting piece 22 which protrudes radially inward, and is engaged with the fitting groove 410 of a bulb socket. In the state where the bulb socket 4 is attached to the reflector 2, the fitting piece 22 is fitted into the fitting groove 410 in the inserted state, so that the fitting piece 22 is not exposed. Since the dark part can be suppressed from occurring around the bulb socket 4, the aesthetics of the luminaire is improved.

Description

Automotive Luminaires {VEHICLE LAMP}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle luminaire having a structure of supporting a bulb (bulb) by using a bulb socket in a luminaire body or a reflector (hereinafter referred to as a `` reflector ''). It is about a luminaire.

In a luminaire for a vehicle such as an automobile, a bulb is attached to a reflector or the like. However, in order to enable bulb replacement, the bulb is attached to a bulb socket detachable from the luminaire. In order to make a bulb socket detachable from a reflector, the bayonet structure is conventionally used. 10 is a perspective view of an example of a conventional bayonet structure. The bulb socket 4C has a bulb support opening 44 for supporting the bulb 5 on its front end, and has a socket body 41 formed in a cylindrical shape at its proximal end. The bayonet piece 42 protrudes radially outward at the point. In addition, the flange 43 given the axial elasticity protrudes radially outward at a position apart from the bayonet piece 42 by a small dimension in the axial direction, that is, the size of the plate thickness of the reflector 2 described later. It is. On the other hand, the bulb body, here the reflector 2, has a circular bulb attachment hole 24 through which the socket body 41 of the bulb socket 4C can be inserted, and the bayer in various places of the circumference. A notch groove 25 through which the net piece 42 can be inserted is formed.

When attaching this bulb socket 4C to the reflector, as shown in sectional view in FIG. 11A, the socket body 41 of the bulb socket 4C is inserted into the socket attachment hole 24 from the rear side of the reflector 2. The bayonet piece 42 is inserted through the notch groove 25 to bring the flange 43 into contact with the rear surface of the reflector 2. Then, by rotating the bulb socket 4C by a predetermined angle in the circumferential direction of the barrel, the opening edge of the socket attachment hole 24 of the reflector 2 enters between the bayonet piece 42 and the flange 43, Since the opening edge part is pinched, the bulb socket 4C is attached to the reflector 2 by the force exerted in the pinched state.

In such a conventional bulb socket attachment structure, when a plurality of bayonet pieces 42 protrude from the main surface of the socket body 41 of the bulb socket 4C, and the bulb socket 4C is attached to the reflector 2, As shown in the front direction in FIG. 11B, a plurality of bayonet pieces 42 are exposed to the periphery of the socket main body 41 on the reflection surface on the front side of the reflector 2. Therefore, when the luminaire is viewed from the front side, the reflecting surface of the reflector 2 around the bulb socket 4C is covered by these bayonet pieces 42, and the recessed state of the socket body 41 Since the front face 41a is in a position where the reflector 2 is retracted from the reflecting face 2a of the reflector 2, when the luminaire is viewed from the front direction, no light reflection occurs at these parts, and these parts are dark portions (dots). Expressed parts), which is a factor that degrades the aesthetics of the luminaire. In addition, since the reflecting surface of the reflector 2 does not function as a reflecting surface in the area of the socket attachment hole 24 for mounting the bulb socket 4C, the reflection efficiency of the reflector 2 can be avoided lowered by that amount. none.

In addition, conventionally, as shown in the cross-sectional view in FIG. 12A, a socket-shaped cylinder portion 21 is formed in which a portion of the rear surface of the reflector 2 is concave in a cylindrical container shape, and is shown on the rear surface of the cylindrical portion 21 with the socket. A structure for attaching the bulb socket 4C by providing a socket attachment hole 24 and a cutout groove 25 as shown in Fig. 6 is also proposed. However, when employing such a structure, it is necessary to form the radially inner dimension of the cylindrical portion 21 with a socket larger than the radially outer dimension of the bayonet piece 42. Therefore, in this structure, when the luminaire is viewed from the front side, as shown in FIG. 12B, the dark part (dots) by the clearance gap between the socket part cylinder 21 and the socket main body 41 around the bulb socket 4C. Part), which is a factor of deteriorating the aesthetics of the luminaire. Moreover, also in this structure, since the reflecting surface of the reflector 2 does not function as a reflecting surface in the area | region of the cylinder part 21 with which the bulb socket 4C is mounted, the reflection efficiency of the reflector 2 by that much It is inevitable to be lowered.

SUMMARY OF THE INVENTION An object of the present invention is to provide a luminaire for a vehicle which suppresses the appearance of the dark portion when the bulb socket is attached to the reflector or the like, thereby preventing the appearance of the appearance of the luminaire from deteriorating and increasing the reflection efficiency of the reflector.

1 is a cross-sectional view of a first embodiment of a luminaire of the present invention.

2 is a partially exploded perspective view of the main part of the luminaire of FIG.

3A to 3C are front view, side view, and rear view of the bulb socket according to the first embodiment of the present invention.

4 is a perspective view illustrating a state in which the bulb socket of FIG. 3 is mounted on the reflector.

FIG. 5 is a front view of the bulb socket of FIG. 3; FIG.

6 is a perspective view of an essential part of a second embodiment of the present invention;

FIG. 7 is a cross-sectional view of the bulb socket of FIG. 6.

8 is a perspective view of an essential part of a third embodiment of the present invention;

9A and 9B are cross-sectional views and side views of the bulb socket of FIG. 8 mounted;

10 is a perspective view illustrating a bulb socket of a conventional bayonet structure.

11A and 11B are a sectional view and a front view for explaining one conventional problem.

12A and 12B are a sectional view and a front view for explaining another conventional problem.

<Explanation of symbols for the main parts of the drawings>

1: luminaire body

2: reflector

3: lens

4: bulb socket

5: bulb

6: rubber packing

21: tube part with socket

22: fitting piece

23: engaging turns

24: fitting groove

241, 242: recessed groove

243: crank bend

401 socket body

402 bulb opening

403: contact electrode

405: code

406: flange

407: elastic contact piece

409: fitting groove

410: fitting groove

411: axial groove

412: circumferential groove

420: Fitting

The present invention inserts a bulb socket for supporting a bulb inwardly into a socket attachment hole provided in a reflector or the like, and rotates the bulb socket in the axial circumferential direction and mounts the reflector to the bulb socket. An L-shaped fitting groove is provided from the side surface formed on the outer circumferential surface of the socket body, and the socket attachment hole is formed to protrude radially inward, and the fitting groove is formed by insertion and rotation of the bulb socket. It has a fitting piece to be fitted to. Here, it is preferable to set it as the structure in which the said reflector etc. are provided with the socket part cylinder part of the radially inner dimension substantially the same as the radially outer dimension of the said bulb socket, and the said socket part hole was drilled in the bottom surface of the said socket part cylinder part. Do.

In addition, the present invention provides a luminaire for a vehicle having a configuration in which a bulb socket for supporting a bulb is inserted into a socket attachment hole provided in a reflector or the like, and the mounting of the reflector or the like is performed by rotating the bulb socket in the circumferential direction. The bulb socket has a cylindrical socket body and a fitting piece projecting radially outward at various points on the circumference of the outer circumferential surface of the socket body, and the reflector or the like has a radius substantially equal to the radially outer dimension of the bulb socket. And a fitting groove formed in the inner surface of the socket with the socket and the fitting groove in which the fitting piece is fitted.

Here, in the present invention, when the bulb socket is attached to the reflector or the like, it is preferable that the front end face of the socket main body is located at a substantially same plane position as the reflecting surface such as the reflector. In addition, a part of the outer circumferential surface of the socket body in the cylindrical direction is formed with a flange projecting outward in the radial direction, the flange is formed with an elastic contact piece by a pair of slits provided in a plurality of circumference, the bulb socket to the socket attachment hole It is also preferable to set it as the structure which the said elastic contact piece elastically contacts the back surface, such as the said reflector, when attached to.

In the present invention, in the state where the bulb socket is attached to the reflector or the like, the fitting piece such as the reflector is inserted into the fitting groove of the bulb socket, or the fitting piece of the bulb socket is inserted into the fitting groove such as the reflector. Since the fitting piece is not exposed, the fitting piece is not exposed, and the occurrence of the dark portion around the bulb socket which is the main cause of the fitting piece can be prevented, thereby improving the aesthetics of the luminaire. In addition, by providing a cylinder part with a socket almost the same as the bulb socket in the reflector or the like, no groove is formed between the reflector and the like along the periphery of the bulb socket. This is further improved. Further, by placing the front end face of the bulb socket on the same plane as the reflecting face such as the reflector, the front end face can be made to act as the reflecting face, thereby improving the reflecting efficiency of the reflector. In addition, when the flange and the elastic contact piece are elastically contacted with the reflector or the like, the reliability of attachment of the bulb socket can be improved.

Next, embodiment of this invention is described with reference to drawings. FIG. 1: is a longitudinal cross-sectional view which shows the whole structure of the luminaire 1 which concerns on 1st Embodiment which applied this invention. The reflector 2 is formed by molding the resin, and the inner surface of the front side is provided as a reflecting surface, and the lens 3 is attached to the front opening 2b of the reflector 2. The lens 3 has a seal leg portion 31 at the periphery, and the seal leg portion 31 provided at the periphery is sealed with the sealant 30 in the seal groove 20 provided at the periphery of the reflector 2. By fixing, the lens 3 is attached, and the back chamber is partitioned. The back of the reflector 2 is provided with a cylindrical tube part 21 with a socket. The tube part 21 with a socket has a bulb socket (through a socket insertion through-hole drilled in the back of the luminaire main body 1). 4) is detachably attached. The bulb socket 4 is supported by the bulb 5 as a light source. Although not shown, the luminaire 1 has a waterproof structure by pressing a rib packing sheet or the like provided on the outer surface of the reflector 2, and the bulb socket 4 is configured as a non-waterproof type.

FIG. 2 is a schematic partial exploded perspective view showing a part of the bulb socket 4 and the reflector 2, and FIGS. 3A to 3C are front, side and rear views of the bulb socket 4, respectively. The bulb socket 4 has a socket main body 401 formed in a substantially cylindrical shape, and a bulb support opening for inserting and supporting the bulb 5 in a front end face of the socket main body 401 facing in the front direction ( 402 is provided, and the base portion 51 of the bulb 5 is inserted and supported therein. In this embodiment, the bulb 5 has a so-called wedge base bulb in which an electrode 52 electrically connected to a filament embedded in the bulb is disposed on a base portion 51 having a substantially flat shape. Thus, the bulb support opening 402 is formed to have an elongated opening shape, and a contact electrode 403 is disposed inside the electrode support 52 of the bulb 5 inserted into the bulb support opening 402. ), The electrical connection is made. Moreover, the back surface of the said socket main body 401 is provided with the operation member 404 which is used when operating the bulb socket 4 in the axial-circumferential direction, and is protruded from the position adjacent to this operation member 404. The cord 405 connected to the contact electrode 403 is drawn out.

In addition, a circular flange 406 is integrally formed to protrude radially outward from the outer circumferential surface near the rear surface of the socket body 401, and a plurality of points in the circumferential direction of the flange 406 (in this embodiment) The tongue-shaped elastic contact piece 407 is formed by a pair of parallel slits extending in the radial direction at two points on the radial line perpendicular to the longitudinal direction of the bulb supporting opening 402 and almost 180 degrees thereof. have. These elastic contact pieces 407 are elastically deformable in the tubular direction of the socket body 401 by the elasticity of the resin material, and a height of the front end portion protruding slightly toward the front side than the front surface of the flange 406. The projection 408 of is provided. Moreover, at the circumferential position different from the circumferential position in which the said elastic contact piece of the said flange 406 is provided, the engaging groove 409 by which a part of the periphery part was cut to predetermined length is formed.

On the other hand, two points in the circumferential direction of the main surface of the socket body 401 (here, two points on both ends of the longitudinal direction of the bulb support opening 402 which are different from the two elastic contact pieces 407 by 90 degrees). In the circumferential position of a pair of fitting grooves 410 are formed over an area from the front end of the socket body 401 to the front surface of the flange 406. The fitting groove 410 is axially perpendicular to the circumferential direction at a position where the axial groove portion 411 extends in the tubular direction of the socket body 401 and the axial groove portion 411 reaches the flange 406. The curved circumferential groove portion 412 is formed. That is, the fitting groove 410 is formed in an L-shaped shape that is inverted when viewed in the lateral direction of the socket body 401. Moreover, the length of the circumferential direction of the said circumferential groove part 412 of this fitting groove 410 is formed in length slightly shorter than the length of the said engagement groove 409. As shown in FIG. In addition, as a separation hole of a mold for forming the circumferential groove portion 412 of the fitting groove 410, a mold separation hole 413 penetrating in the axial direction is drilled in a corresponding portion of the flange 406. This makes it possible to mold the bulb socket 4 with a resin without using a slider.

On the other hand, the reflector 2 has an inner diameter substantially equal to the outer diameter of the socket body 401 of the bulb socket 4, and the socket body 401 has a portion on the rear surface to which the bulb socket 4 is attached. The cylindrical cylindrical socket portion 21 is formed at an axial length substantially equal to the dimension from the front end to the flange 406. In addition, a pair of fitting pieces 22 which can be respectively inserted into a pair of fitting grooves 410 provided in the socket body 401 protrude radially inward from the rear opening of the socket-attached cylindrical portion 21. Formed. In addition, in the part of the circumference of the fitting part 22 of the peripheral part of the said back opening of the said cylinder part 21 with a socket, the engagement length which is shorter in the circumferential length than the engagement groove 409 of the said socket main body 401 The protrusion 23 protrudes in the barrel direction.

In 1st Embodiment of the above structure, when attaching the said bulb socket 4 with respect to the reflector 2, referring to the perspective view of FIG. 4, the bulb (opening) for bulb support opening 402 of the bulb socket 4 will have a bulb ( The bulb socket 4 is inserted into the socket part cylinder part 21 in the back side of the reflector 2 in the state which the base part 51 of 5) was inserted, and the bulb 5 was supported. At this time, by fitting the pair of fitting grooves 410 of the socket main body 401 to the pair of fitting pieces 22 of the socket part cylinder part 21, the bulb socket 4 is connected to the socket part by the socket part. It becomes possible to insert into 21 axially, and at the time of insertion, the axial groove part 411 of the fitting groove 410 is guided by the fitting piece 22. As shown in FIG. In addition, at this time, the alignment groove 409 is aligned with the engagement protrusion 23 to execute the alignment operation in the circumferential direction so that the engagement protrusion 23 enters the engagement groove 409. Of bulb sockets, for example single or double type bulb sockets, is prevented from being assembled. Then, the flange 406 is inserted in the axial direction to the position contacting the rear end of the cylindrical portion 21 with a socket, and then the bulb socket 4 is fixed at a predetermined angle around the cylindrical axis, that is, the length of the circumferential groove 412. When it rotates by the angle corresponding to, the fitting piece 22 enters into the circumferential groove part 412 of the fitting groove 410, and becomes a fitting state at the end part or the position near the end part. In this fitting state, the elastic contact piece 407 provided on the flange 406 of the bulb socket 4 has a protrusion 408 at its tip elastically contacting the back surface of the cylindrical portion 21 with a socket, and is slightly elastic in the barrel axis direction. In order to deform | transform, the bulb socket 4 is pushed outward by the repulsive force by the reaction force. Thereby, the fitting piece 22 is in contact with the axial side surface of the circumferential groove part 412, and the bulb socket 4 is supported in the cylinder part 21 with a socket by the friction force which arises at that time.

Thus, in the state where the bulb socket 4 is attached to the reflector 2, as shown in FIG. 5, the state which looked at the bulb socket 4 from the front side (as shown in the direction of arrow A of FIG. 1) is shown. Since the radially outer dimension of the socket main body 401 and the radially inner side of the cylindrical part 21 with a socket are substantially the same, the clearance gap between the bulb socket 4 and the cylindrical part 21 with a socket becomes very narrow. Moreover, since the dimension from the front end surface of the socket main body 401 to the circumferential groove part 412 of the fitting groove 410, and the axial direction dimension of the cylindrical part 21 with a socket are the same, the front of the socket main body 401 The cross section and the reflecting surface of the reflector 2 are located at substantially the same plane position. Therefore, in the state of FIG. 5 where the vicinity of the bulb socket 4 is viewed from the front direction of the luminaire, as shown by the dots in this figure between the periphery of the bulb socket 4 and the reflector 2, Very narrow gap and the dark portion by the fitting groove 210 is only visible.

In this case, since the fitting groove 410 can be formed with a smaller size than the bayonet piece of the conventional bayonet structure, the part which appears dark by the fitting groove 410 can be almost ignored. In particular, in this embodiment, the fitting groove 410 is formed at both ends in the longitudinal direction of the bulb support opening 402, and since this position is a position where a shadow by the filament support part of the bulb 5 originally occurs, It is possible to disregard the part which appears dark by the fitting groove 410 also by the shadow by this filament support part. In addition, at this time, the fitting piece 22 provided in the cylinder part 21 with a socket enters into the fitting groove 410 of the bulb socket 4, and therefore is not exposed to the front side, and the fitting piece 22 is not exposed. There is no such thing as the part which looks dark by). As a result, a high-quality luminaire having a beautiful appearance can be realized. In addition, the circular front end surface 401a of the said socket main body 401 is located in substantially the same plane position as the reflecting surface 2a of the reflector 2, and most of the cylindrical part 21 with a socket in this front end surface 401a is carried out. In this state, the front end surface 401a can function as a part of the reflecting surface 2a of the reflector 2, and the reflection efficiency of the reflector 2 can be increased.

It is a perspective view of the principal part of 2nd Embodiment of this invention, and FIG. 7 is sectional drawing of the principal part of the assembled state. In this 2nd Embodiment, this invention is comprised as 4 A of waterproof type bulb sockets, and the elastic contact piece is not provided in the flange 406 of the socket main body 401 in order to ensure waterproofness. Moreover, from the side surface formed in the main surface of the socket main body 401, the metal mold | die separation hole which follows the L-shaped fitting groove 410 is not provided. Therefore, the fitting groove 410 is formed by, for example, providing a slider in a mold when the socket body 401 is molded from a resin. In addition, a round annular rubber packing 6 is fitted on the outer circumference of the socket body 401 to be in contact with the surface of the flange 406. Although not shown in the figure, the two cords 405 drawn out from the socket body are waterproofed with the socket body by a waterproof bushing. In addition, in this embodiment, the front end surface 401a of the socket main body in which the said bulb support opening 402 is formed is formed in concave shape according to the curvature of the reflecting surface 2a of the reflector 2. As shown in FIG.

According to the second embodiment, in the state where the bulb socket 4A is attached to the reflector 2 as shown in FIG. 7, the circumference and the reflector 2 of the bulb socket 4A as in the first embodiment shown in FIG. 5. Only a small gap and the dark part by the fitting groove 210 are shown between the two, and a high quality luminaire with a good aesthetics is realized. In addition, since the circular front end surface 401a of the said socket main body 401 has a concave shape according to the curvature of the reflecting surface 2a of the reflector 2, the front end surface 401a is made into the reflective surface. If processed, this front end surface 401a will function as part of the reflecting surface 2a of the predetermined curvature of a reflector, and it is also possible to raise the reflection efficiency in the reflector 2. As shown in FIG. In addition, waterproofing between the reflector 2 and the bulb socket 4A is ensured by the rubber packing 6 interposed between the socket-shaped cylinder portion 21 and the flange 406.

8 is a partially exploded perspective view of a third embodiment of the present invention. 9A and 9B are sectional views and side views of the assembled state thereof. In addition, the same code | symbol is attached | subjected to the same part as said 1st Embodiment and 2nd Embodiment. In the third embodiment, the fitting piece 420 protruding radially outward is formed at two points in the radial direction of the cylindrical main surface of the socket body 4B. Further, the bulb socket 4B is configured as a waterproof type, and a round annular rubber packing 6 is fitted on the outer circumference of the socket body 401 to be in contact with the surface of the flange 406. On the other hand, as for the cylinder part 21 with a socket provided in the reflector 2, the dimension of a radial direction is formed thick compared with the structure of each said embodiment, and the said socket main body 401 is provided at two points of the radial direction of the inner peripheral surface. A pair of fitting grooves 24 corresponding to the fitting pieces 420 provided in the grooves are formed. Each of the fitting grooves 24 includes straight recessed grooves 241 and 242 extending in the axial direction of the cylindrical tube portion 21 with a width in which the fitting piece 420 can be inserted therethrough. The position is changed by the groove width in the circumferential direction from the outer end side and the inner end side, respectively, to form an almost intermediate position in the cylindrical axis direction, whereby the cylindrical portion 21 with the socket to which the concave grooves 241 and 242 contact each other. It is formed as a crank-shaped fitting groove as a whole having a crank bent portion 243 at a substantially middle portion in the cylindrical axis direction of the c.

In the third embodiment, when the bulb socket 4B is mounted on the reflector 2, the bulb socket 4B is mounted on the reflector 2 while the bulb 5 is supported by the bulb socket 4B. Is inserted into the cylinder part 21 with a socket from the back side of the. At this time, the pair of fitting pieces 420 of the socket main body 401 are positioned in the pair of fitting grooves 24 of the cylindrical part 21 with a socket. At this time, the engagement groove 409 is positioned in the engagement protrusion 23, and the alignment protrusion 23 is aligned in the circumferential direction so that the engagement protrusion 23 enters the engagement groove 409. Misassembly of bulb sockets, eg single or double type bulb sockets, is prevented. Then, the fitting piece 420 is inserted in the axial direction until it comes in contact with the crank bend portion 243 of the fitting groove 24, and then the bulb socket 4B is fitted at a predetermined angle, that is, almost fitting around the cylinder axis. When rotating by the angle corresponding to the circumferential length of the piece 420, the fitting piece 420 enters into the crank bend part 243 of the fitting groove 24, and will be in a fitting state. In this fitting state, the bulb socket 4B is pushed outward in the cylindrical direction by the elastic force of the rubber packing 6 interposed between the flange 406 and the cylindrical portion 21 with the socket, whereby the fitting piece is fitted. The 420 is in contact with the axial side surface of the crank bent portion 243, and the bulb socket 4B is supported in the cylindrical portion 21 with the socket by the friction force generated at that time.

According to the third embodiment, in the state where the bulb socket 4B is attached to the reflector 2 as shown in FIG. 9, the circumference of the bulb socket 4B and the reflector 2 are the same as in the first embodiment shown in FIG. 5. ), Only a very narrow gap and the dark part by the fitting groove 24 are seen, and the high quality luminaire with a good aesthetics is realized. In addition, if the circular front end surface 401a of the said socket main body 401 is surface-treated so that it may become a reflective surface, this front end surface 401a may also function as a part of the reflective surface 2a of the reflector 2 It is also possible to improve the reflection efficiency in the reflector 2. In addition, waterproofing between the reflector 2 and the bulb socket 4B is ensured by the rubber packing 6 interposed between the socket-shaped cylinder portion 21 and the flange 406.

In the third embodiment, the fitting groove 24 does not require a slider of a mold for molding the socket body 401 with resin when the crank bend portion 243 is formed. Although the recessed grooves 241 and 242 are formed in both sides of the cylinder part 21, and it forms in the crank shape, when forming the fitting groove 24 using a slider, a fitting groove is provided in the outer end side of the cylinder part with a socket. It becomes possible to form it as a fitting groove extended to L shape from the inside. When the fitting groove is formed in this manner, the fitting groove is not exposed to the inner end of the socket-attached cylindrical portion constituting the fitting groove, and the dark groove is prevented from being generated by the fitting groove when the luminaire is viewed from the front side. As a result, the beauty can be further enhanced.

Moreover, it is also possible to comprise 3rd Embodiment as a non-water-proof type bulb socket, In this case, you may provide an elastic contact piece like 1st Embodiment in a flange. Moreover, it is also possible to comprise the front end surface of the socket main body of the bulb socket of 1st Embodiment and 2nd Embodiment as a concave surface matched to the curvature of reflective surfaces, such as a reflector like 2nd Embodiment.

Here, in the first embodiment and the second embodiment, the fitting groove 410 is formed in an L-shape turned upside down from the side of the socket body, but it is also possible to form the L-shape opposite. In addition, in the said 1st Embodiment, although the flange and elastic contact piece are provided in the socket main body, these are not necessarily required, and when a bulb socket is inserted in a cylindrical part with a socket inside, a node between a fitting groove and a fitting piece is included. Any structure can be adopted as long as it is a structure giving. Moreover, in the said embodiment, although the cylinder part with a socket was provided in the reflector and the example of the structure which attached the bulb socket in this socket part with a socket is shown, even if there is no socket part with a socket, a fitting piece is exposed and this is at least exposed. Deterioration of aesthetic appearance as a dark part can be avoided. In addition, although the bulb socket is attached to the reflector in the said embodiment, even if a bulb socket is attached to a luminaire main body, this invention can be applied in a similar way.

As described above, in the present invention, the bulb socket has an L-shaped fitting groove as seen from the side surface formed on the outer circumferential surface of the socket body having a cylindrical shape, and the socket attachment hole provided in the reflector or the like protrudes inward in the radial direction to form the bulb socket. Since the fitting piece is fitted with the fitting groove, or the fitting piece is provided on the outer circumferential surface of the socket body of the bulb socket, the fitting piece is fitted on the inner surface of the socket-mounted tube part installed in the reflector or the like. Since the fitting groove is provided, the fitting piece is inserted and inserted into the fitting groove in the state where the bulb socket is attached to the reflector or the like, so that the fitting piece is not exposed, and the fitting piece is the main cause. I can prevent the generation of the dark part around the bulb socket becoming the beauty of the luminaire It is improved. In particular, by providing a cylinder part with a socket almost the same as the bulb socket in the reflector or the like, grooves between the reflector and the like are not formed along the periphery of the bulb socket, and the occurrence of dark areas caused by the grooves can be prevented. This is further improved. In addition, by placing the front end face of the bulb socket on the same plane as the reflection face such as the reflector, it is possible to make the front end face function as the reflection face, thereby improving the reflection efficiency of the reflector or the like. In addition, when the flange and the elastic contact piece are elastically contacted with the reflector or the like, the reliability of attachment of the bulb socket can be improved.

Claims (5)

A bulb lamp for a vehicle configured to insert a bulb socket for supporting a bulb into a socket attachment hole provided in a reflector or the like, and rotate the bulb socket in an axial circumferential direction to mount the reflector or the like, wherein the bulb socket is a cylindrical socket. It is provided with a main body and the L-shaped fitting groove seen from the side surface formed in the outer peripheral surface of this socket main body, The said socket attachment hole protrudes inward in the radial direction, and is inserted and rotated in the said inner side of the bulb socket, And a fitting piece engaged with the fitting groove, and when the bulb socket is mounted on the reflector or the like, the front end face of the socket body is located at a substantially same plane position as the reflecting face such as the reflector. Car luminaires. The said reflector etc. are provided with the socket part cylinder part of the radially inner side dimension substantially the same as the radially outer dimension of the said bulb socket, The said socket part hole is drilled in the bottom surface of the said socket part cylinder part, It is characterized by the above-mentioned. Car luminaires. A bulb for a vehicle having a configuration in which a bulb socket for supporting a bulb is inserted into a socket attachment hole provided in a reflector or the like, and the mounting of the reflector or the like is performed by rotating the bulb socket in the axial circumferential direction. A main body and a fitting piece projecting radially outward at various points on the circumference of the outer circumferential surface of the socket main body, and the reflector or the like includes a cylindrical part with a socket having a radially inner dimension substantially the same as the radially outer dimension of the bulb socket; And a fitting groove formed on an inner surface of the cylindrical portion with the socket, to which the fitting piece is fitted, and when the bulb socket is mounted on the reflector or the like, the front end face of the socket body is substantially close to the reflecting surface such as the reflector. A vehicle lamp, characterized in that located in the same plane position. delete The flange portion which protrudes radially outward is formed in a part of the axial direction of the outer peripheral surface of the said socket main body, Comprising: The flange is elastic by the pair of slit provided in the several points of a circumference. And a contact piece is formed so that the elastic contact piece elastically contacts the rear surface of the reflector or the like when the bulb socket is mounted in the socket attachment hole.