JP2012129006A - Holding structure of lamp bulb - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a bulb from being loosened due to an impact when a door is closed, to easily attach and detach the bulb, and to prevent a decrease in illuminance, which is caused by blocking light of the bulb to increase the illuminance of the light.SOLUTION: An adopted holding structure of a lamp bulb includes: a lens 12 through which the light of the bulb 7 for illumination transmits; a connector housing 13 provided on the lens; a pair of bus bars 2 and 3 having a terminal 4 at one end part, which is arranged in the connector housing; a contact spring part 5 which comes into contact with a terminal part 8 of the bulb provided at an intermediate part of the pair of bus bars; and a bulb holding plate 6 for sandwiching the bulb in a plate width direction with a bulb holding groove 6a at a tip provided at the other end part of the pair of bus bars so as to protrude inward. A pair of the bulb holding plates 6 are arranged in a tapered shape in an insertion direction of the bulb. Reflectors 22, 27, and 28 for reflecting the light of the bulb toward the lens are provided at the bulb holding plate 6'. The bulb holding plate 6' and the reflectors are integrally formed to extend from the contact spring part 5.

Description

  The present invention relates to a lamp bulb holding structure in which a bulb, which is a light emitter, is connected and held by a contact spring piece of a conductive metal bus bar and a bulb holding plate in a lamp which is a lighting device of an automobile.

  Conventionally, various types of holding structures for lamp bulbs mounted on automobiles and the like have been proposed.

  For example, in Patent Document 1, as shown in FIG. 6, as a courtesy lamp 41 for an automobile door, a pair of front and rear terminal fixing portions 43 and a single connector housing at the rear center are integrally formed on the inner surface of a transparent resin lens 42. 44 and a front center locking claw 45, a terminal portion 46 is provided on the connector housing 44, and a pair of front and rear leg portions 47 a of a pair of left and right bus bar-like terminals 47 are inserted and fixed to each fixing portion 43, The valve 48 is sandwiched between a pair of left and right holding portions 47b in the middle of each terminal 47, and the rear end side of the holding portion 47b is brought into electrical contact with the terminal 46 on the connector housing 44 side. A socket (not shown) on the power supply side is inserted from the rear into the connector to enable the bulb 48 to be lit, and the locking claw 45 is locked to the automobile door to fix the lamp 41. It has been described to be.

  In addition, it is described that the lamp 41 can be applied to a room lamp or the like in addition to the courtesy lamp. In the specification, the front / rear / left / right / up / down directions are for convenience of explanation and do not always coincide with the mounting direction of the lamp 41, for example (this is the same in the embodiment of the invention).

Japanese Patent No. 4129782

  However, in the conventional lamp bulb holding structure described above, the door 48 is sandwiched and fixed in the holding plate thickness direction by the holding portion 47b in the middle of the pair of busbar-like long terminals 47. There is a concern that the holding force of the holding portion 47b is reduced due to an impact at the time of closing, vibration during traveling of the vehicle, etc., and the valve 48 may be loosened.

  In addition, since the horizontally long terminal 47 is extended to both sides in the radial direction of the valve 48, the replacement (detachment) of the valve 48 is troublesome, and the horizontally long terminal 47 irradiates the irradiation light of the valve 48 with the thickness of the terminal plate. There was a concern that blocking the direction could cause a decrease in illuminance.

  In view of the above points, the present invention does not cause the valve to loosen due to an impact when the door is closed or vibrations while the vehicle is running, and in addition, the valve can be easily attached and detached. It is an object of the present invention to provide a lamp bulb holding structure capable of preventing a decrease in illuminance due to light blocking or increasing an illuminance.

  In order to achieve the above object, a lamp bulb holding structure according to claim 1 of the present invention includes a lens that transmits light of a bulb for illumination, a connector housing provided on the lens, and a connector housing. And a pair of bus bars having terminals arranged at one end, a contact spring portion contacting the terminal portion of the valve is provided at an intermediate portion of the pair of bus bars, and at the other end of the pair of bus bars A valve holding plate that clamps the valve in the plate width direction by a valve holding groove at the tip is provided to protrude inward.

  With the above configuration, the terminal portion on one end side of the valve is elastically contacted by the contact spring portion (preferably sandwiched between the pair of contact spring portions), and the valve, that is, the valve body (glass bulb) is a pair of valve holding plates. Thus, it is clamped and fixed in the width direction of the valve holding plate. The plate width direction is a direction orthogonal to the plate thickness direction. Conventionally, the valve is clamped in the plate thickness direction by the wide surface of the valve holding plate, but in the present invention, the valve is clamped in the width direction of the holding plate by the narrow end surface of the valve holding groove at the protruding tip of the valve holding plate. The friction resistance between the valve holding plate and the valve is large, and the valve holding plate securely holds the valve without coming out. In addition, since the bulb holding plate is positioned substantially orthogonal to the central axis of the bulb, the bulb light is blocked by only the narrow end face of the bulb holding groove, and the illuminance is hardly lowered.

  A lamp bulb holding structure according to a second aspect is the lamp bulb holding structure according to the first aspect, wherein the pair of bulb holding plates are tapered in the bulb insertion direction.

  With the above configuration, when the bulb is mounted on the lamp, the bulb is smoothly guided along the inclined surfaces of the pair of tapered bulb holding plates, and the terminal portion of the bulb is connected to the contact spring portion. The valve is centered by a pair of valve holding plates and accurately positioned on the contact spring portion.

  The lamp bulb holding structure according to claim 3 is the lamp bulb holding structure according to claim 1 or 2, wherein the bulb holding plate is provided with a reflector for reflecting the light of the bulb toward the lens. It is characterized by that.

  With the above configuration, the light from the bulb is reflected by the reflector (reflecting plate), and is irradiated from the lens to the outside together with the direct light from the bulb as reflected light. This increases the illuminance of the lamp. The reflector is preferably formed integrally with the valve holding plate by bending a part of the bus bar.

  The lamp bulb holding structure according to claim 4 is the lamp bulb holding structure according to claim 3, wherein the bulb holding plate and the reflector are integrally extended from the contact spring portion. .

  With the above configuration, the bus bar terminals, the contact springs, the valve holding plate, and the reflector are integrally formed by punching and bending from the conductive metal plate as the bus bar base material, thereby facilitating the manufacture of the bus bar and The yield is improved.

  According to the invention of claim 1, by sandwiching the bulb in the holding plate width direction by a pair of bulb holding plates, the friction resistance with the bulb is increased, for example, as a courtesy lamp or a vehicle compartment lamp of an automobile door, It is possible to reliably prevent the valve from loosening or coming out from the contact spring portion even when the door is closed or when the vehicle is running. In addition, since the pair of bulb holding plates only block the bulb light in a narrow area that is approximately the plate thickness, it is possible to prevent the illumination intensity of the bulb illumination light from decreasing. In addition, a reduction in illuminance can also be prevented by providing a bulb holding plate at the end of the bus bar and eliminating the portion of the bus bar that blocks the light from the bulb. Further, by eliminating the part that obstructs the valve attaching / detaching work on the extension of the bus bar, the valve attaching work and maintenance can be easily performed.

  According to invention of Claim 2, a valve | bulb can be smoothly inserted along a pair of taper-shaped valve | bulb holding plate, and the assembly | attachment workability | operativity of a valve | bulb can be improved.

  According to the third aspect of the present invention, it is possible to increase the illuminance of the lamp by reflecting the light of the lamp with the reflector. If the reflector is provided integrally with the valve holding plate, the cost of the bus bar with the reflector can be kept low.

  According to the fourth aspect of the present invention, the bus bar having the terminal, the contact spring portion, the valve holding plate, and the reflector can be easily formed with good yield and low cost, and the cost of the lamp can be kept low. it can.

1 is a perspective view showing an embodiment of a lamp bulb holding structure according to the present invention. FIG. It is a top view which shows the state which similarly inserts a valve | bulb between bus bars. It is a front view which shows the state which attaches | subjects a valve | bulb and a bus bar to a lens side, and comprises a lens. It is a perspective view which shows other embodiment of the holding structure of the lamp | ramp bulb which concerns on this invention. It is a principal part perspective view which shows the modification which changed the shape of the reflector in the structure of FIG. It is a perspective view which shows one form of the holding structure of the conventional lamp | ramp bulb | ball.

  1 to 3 show an embodiment of a lamp bulb holding structure according to the present invention.

  As shown in FIG. 1, the lamp bulb holding structure 1 is formed by integrally forming terminals 4 at rear end portions (base end portions or one end portions) of a pair of left and right conductive metal bus bars 2 and 3. Contact spring pieces (contact spring portions) 5 are integrally formed at intermediate portions in the longitudinal direction of 2 and 3, and valve holding plates (valve holding portions) are formed at the front end portions (tip portions or other end portions) of the bus bars 2 and 3. ) 6 is formed integrally, and the terminal portion 8 on the rear half side (base end side) of the valve 7 is electrically connected by each contact spring piece 5, and the valve body on the front half side of the valve 7 (reference numeral 7 is substituted) Glass bulb) is sandwiched and fixed in the holding plate width direction as indicated by an arrow A by a pair of left and right valve holding plates 6.

  Each bus bar 2 and 3 is comprised by the terminal 4, the contact spring piece 5, the valve | bulb holding plate 6, and the board parts 9-11 which connect these. Each bus bar 2 and 3 is formed symmetrically. The terminal 4 is a male terminal formed narrower than the plate part 9 on the rear side. It is preferable in terms of cutting and bending the bus bars 2 and 3 that the terminal 4, the contact spring piece 5, the plate portions 9 to 11 and the valve holding plate 6 have the same thickness. The bus bars 2 and 3 are made of, for example, a copper alloy.

  The terminal 4 continues perpendicular to the inwardly facing plate portion 9a at the rear end of the substantially L-shaped plate portion 9 on the rear side, and short L-shaped support plate portions 10 protrude above and below the front end portion of the plate portion 9, respectively. A curved contact spring piece 5 is formed to project forward from the front end of the inwardly facing horizontal portion 10a of each support plate part 10, and each of the upper, lower, left and right contact spring pieces 5 is formed symmetrically and is L-shaped. A curved plate portion 11 that is opened slightly outward from the front end of the plate portion 9 is formed to extend from the front end of the curved plate portion 11 and has a substantially semicircular valve holding groove 6a at the tip. A substantially rectangular valve holding plate 6 is provided.

  The left and right contact spring pieces 5 sandwich and fix the terminal portion 8 up and down while elastically contacting the left and right positive and negative terminal portions (electrodes) 8 of the bulb 7. As shown in FIG. 2, the left and right valve holding plates 6 are inclined in a reverse C shape from the front end of the curved outwardly extending plate portion 11 toward the rear side, and can serve as insertion guides for the valve 7. Works. The curved plate portion 11 also functions as a spring portion that urges the valve holding plate 6 inward as indicated by an arrow A 'in FIG.

  In FIG. 1, an L-shaped plate portion 9 and a curved plate portion 11 continuously form a bus bar body in the front-rear direction. The pair of left and right valve holding plates 6 are formed wider than the curved plate portion 11 in the vertical direction, and the curved plate portion 11 intersects the vertical center of the outer end (left end or right end) 6b of the valve holding plate 6. A valve holding groove 6a is formed at the inner end (right end or left end) of the valve holding plate 6 along the outer periphery of the valve body 7 without any gap.

  The valve body 7 is stably held at the rear end portion in a symmetrical arc-shaped valve holding groove 6a on the left and right sides without wobbling up and down and left and right. Since most of the valve body 7 is exposed forward from the valve holding plate 6, there is no concern that the bulb holding plate 6 and the curved plate portion 11 following the back block the light emitted from the bulb 7. In particular, since the valve holding plate 6 is substantially orthogonal to the valve main body 7 (projects in the radial direction of the valve main body 7), the light of the valve 7 is only blocked by a small area substantially equal to the plate thickness of the valve holding plate 6, There is no worry about illuminance reduction.

  Since the left and right valve holding plates 6 are slightly inclined rearward, the valve main body 7 is elastically pressed obliquely rearward by the valve holding groove 6a, and the valve 7 is prevented from coming out forward. Since the terminal portion 8 of the latter half of the valve 7 is formed with a smaller diameter (flat) than the valve body 7, the valve body 7 abuts on the front end of the contact spring piece 5 to prevent the valve 7 from moving backward. .

  Note that a straight plate portion can be used instead of the curved plate portion 11. Also in that case, it is preferable that the plate portion (11) has elasticity in the plate thickness direction. However, depending on the size (outer diameter) of the valve 7, an L-shaped plate portion 9 that follows the rear end side of the plate portion 11 or a plate portion can be obtained by making the plate portion 11 curved outward. The enlargement in the left-right direction of the contact spring piece 5 continuing to the rear end of 11 via the short support plate 10 is suppressed. Further, instead of the pair of upper, lower, left and right contact spring pieces 5, a pair of upper left and right contact spring pieces 5 and a lower flat contact plate (not shown) are used. It is also possible to sandwich and connect the terminal portion 8 of the valve 7 in the vertical direction.

  As shown in FIG. 2, the valve 7 is smoothly inserted and guided along the front inclined surface 6c of the pair of left and right valve holding plates 6, and the valve 7 is centered (aligned) vertically and horizontally by the pair of valve holding grooves 6a. Thereby, the terminal portion 8 at the rear portion of the valve 7 is accurately positioned on the left and right contact spring pieces 5 to ensure electrical connection.

  Since the pair of inclined valve holding plates 6 clamps the valve body 7 in a state where the valve body 7 is elastically displaced slightly to the left and right sides together with the curved plate portion 11 when the valve 7 is inserted, the valve holding plate 6 and the plate portion 11 are sandwiched. The valve body 7 is firmly clamped and fixed by the elastic force to be restored. The valve holding plate 6 can be slightly swung in the front-rear direction with the bent portion 11a at the front end of the plate portion 11 as a fulcrum. In this manner, the valve 7 is firmly clamped and fixed by the cooperative action of the elastic plate portion 11 and the elastic valve holding plate 6 subsequent thereto.

  As shown in FIG. 3, the terminals 4 of the bus bars 2 and 3 are press-fitted into the holes 13a of the vertical bottom wall (base wall) 13c of the insulating resin connector housing 13 integrated with the translucent resin horizontal lens 12. Then, it protrudes into the connector fitting chamber 13 b of the connector housing 13. The rear end surface 9a of the rear plate portion 9 following the terminal 4 is in contact with the outer surface of the bottom wall 13c of the connector housing 13, and the rear plate portion 9 and the contact spring piece 5 extending forward and downward of the plate portion 9 are provided. The front plate portion 11 extending forward along the contact spring piece 5 and the valve holding plate 6 intersecting the front plate portion 11 (that is, the bus bar portion excluding the terminal 4) are along the inner surface 12a of the lens 12. Placed horizontally. The bulb 7 is inserted between the pair of left and right bulb holding plates 6 along the inner surface 12 a of the lens 12 and is elastically connected by a pair of upper, lower, left and right contact spring pieces 5.

  The male terminal 4 and the connector housing 13 constitute a connector, a power supply side connector (not shown) is inserted into the connector fitting chamber 13b of the connector from the rear, and the male terminal 4 is inserted and connected to the female terminal of the power supply side connector. Is done.

  A locking claw (not shown) is integrally provided on the inner surface 12a of the lens 12, and the locking claw is inserted and engaged with, for example, a small hole of a door panel of an automobile so that the lens 12, the connector housing 13, the bus bar 2, and the like. A lamp (lighting fixture) 14 composed of 3 and a bulb 7 is fixed to the door. Alternatively, the locking claw is inserted and engaged with a small hole in the ceiling panel of the interior of the automobile, and the lamp (lighting fixture) 14 including the lens 12, the connector housing 13, the bus bars 2 and 3, and the bulb 7 is fixed to the ceiling panel. Is done.

  In the above embodiment, a total of four contact spring pieces 5 are provided on the top, bottom, left, and right. For example, when the terminal portions (electrodes) 8 of the valve 7 are provided symmetrically in a pair of top and bottom, The two contact spring pieces 5 are arranged symmetrically, the contact spring piece 5 of one bus bar 2 is brought into contact with the positive pole terminal part 8, and the contact spring piece 5 of the other bus bar 3 is brought into contact with the negative pole terminal part 8. Contact.

  Further, when the terminal portion 8 of the valve 7 is provided not in the vertical direction but in the longitudinal direction, the negative electrode terminal portion (electrode) on the front circumference is sandwiched between the upper and lower contact spring pieces 5 of one bus bar 2, The terminal portion (electrode) of the positive electrode at the rear end is brought into contact with a vertical contact plate (not shown) of the other bus bar 3. These configurations are also applicable to each embodiment described later.

  If the insertion guide property of the valve 7 is ignored, the pair of valve holding plates 6 can be arranged perpendicular to the central axis of the valve 7 instead of being inclined (tapered). The area where the light 7 is blocked in the thickness direction is reduced, and the illuminance reduction of the bulb 7 is further suppressed. The bulb 7 that is a light emitter is not limited to the filament type, and it is also possible to use a bulb with a built-in LED.

  According to the above embodiment, the contact spring piece is obtained by firmly holding the valve body 7 with a strong pressing force in the radial direction not by the wide surfaces 6c of the pair of valve holding plates 6 but by the narrow surfaces 6a at the side ends. 5 can prevent the valve 7 from unintentionally loosening or coming out of the valve 5. Further, the valve 7 can be smoothly and slidably inserted along the pair of inclined valve holding plates 6, and the conventional detachment workability of the valve 7 is hindered in front of the valve holding plate 6. Since there is no bus bar extension such that the operator's finger interferes, the assembly workability of the valve 7 can be improved.

  The bulb holding plate 6 is positioned in the radial direction of the bulb 7 and the area of the bulb 7 that blocks the irradiation light is almost equal to the plate thickness of the bulb holding plate 6 and is very small. Can be prevented. This is also achieved by the absence of the bus bar extension in front of the valve holding plate 6. The bulb holding plate 6 also functions as a reflector that reflects the light from the bulb 7 forward.

  Further, by holding the valve 7 in the radial direction by the pair of valve holding plates 6, it is possible to prevent the valve (particularly the valve body) 7 from rattling, and the pair of inclined valve holding plates 6 can prevent the valve 7. As a result, the reliability of electrical connection between the contact spring piece 5 and the terminal portion 8 of the valve 7 can be improved. Further, when dirt or foreign matter adheres to the side surface (outer peripheral surface) of the valve body 7, when the valve 7 is inserted between the pair of valve holding plates 6, friction with the peripheral end of the valve holding groove 6a. As a result, dirt and foreign matter are removed, so that the life of the bulb 7 can be prevented from being reduced. These effects are also exhibited in each embodiment described later.

  FIG. 4 shows another embodiment of the lamp bulb holding structure according to the present invention.

  The lamp bulb holding structure 21 is characterized in that, in addition to the configuration of the embodiment of FIG. 1 described above, a reflector (reflecting plate) 22 is integrally provided on a pair of left and right bulb holding plates 6 '. In the embodiment of FIG. 4, each valve holding plate 6 ′ is not inclined in a tapered manner like the valve holding plate 6 of FIG. 1, but is disposed at right angles to the central axis of the valve 7. Since the configuration other than these is the same as that of the embodiment of FIG. 1, the same components are denoted by the same reference numerals and detailed description thereof is omitted.

  The reflector 22 extends forward in a direction orthogonal to the upper end of the valve holding plate 6 ′, and the front end 22 a of the reflector 22 is preferably located at substantially the same position as or in front of the front end (tip) of the valve 7. . The length of the reflector 22 protruding forward is substantially the same as the vertical length of the valve holding plate 6 '. The lateral width of the reflector 22 is the same as the lateral width of the valve holding plate 6 '. An outer end (left end or right end) 22 b of the reflector 22 projects outward (left side or right side) from the outer periphery of the valve body 7.

  The inner surface 22c of each reflector 22 faces the outer surface of the right half or the left half of the valve body 7 (the left reflector 22 faces the left half of the valve body 7 and the right reflector 22 is the right half of the valve body 7). A gap 23 is located between the reflector 22 and the valve body 7. Although there is a gap 24 between the pair of reflectors 22, the width of the reflector 22 in the left-right direction is reduced to eliminate the gap 24. It is also possible to extend inward from the width of the valve holding plate 6 ′.

  The inner surface 22c of the reflector 22 faces the inner surface 12a of the lens 12 in the example of FIG. The bulb 7 is located inside the lens 12, the reflector 22 is located inside the bulb 7, and the door panel or ceiling panel of the automobile is located inside the reflector 22. The bus bars 2 'and 3' including the reflector 22 are preferably formed of a copper alloy or the like having good light reflectivity. It is also possible to form only the reflector 22 with a highly reflective member.

  The upward irradiation light of the bulb 7 is reflected on the inner surface 22c of the reflector 22 (the reflected light is indicated by reference numeral 25), and is irradiated to the outside together with the downward direct light 26 of the bulb 7 from the lens 12 (FIG. 3). In addition to the direct light 26 from the bulb 7, the reflected light 25 from the reflector 22 increases the illuminance of the lamp (reference numeral 14 in FIG. 3). In FIG. 4, reference numeral 6 a ′ denotes an arc-shaped valve holding groove of the valve holding plate 6, 11 denotes a front spring plate, 5 denotes an intermediate contact spring piece, and 9 denotes a fixing that follows the terminal 4 on the rear end side. The side plate portions 2 'and 3' respectively indicate a pair of bus bars as a whole. The lamp means the entire configuration as shown in FIG.

  FIG. 5 shows a modification of the reflector 22 shown in FIG. 4. A rearward reflector (reflecting plate) 28 is integrally provided on the valve holding plate 6 ′ of one bus bar 2 ″, and the other bus bar 3 ″ is provided. A forward reflector (reflecting plate) 27 is integrally provided on the valve holding plate 6 '.

  The front and rear reflectors 27, 28 are extended in the left-right direction over the entire width of the pair of left and right valve holding plates 6 ', and the extended end 27a of the front reflector 27 is substantially the same as the outer end 6b' of one of the valve holding plates 6 '. Located on the same vertical plane, the extended end 28a of the rear reflector 28 is positioned on the same vertical plane as the outer end 6b 'of the other valve holding plate 6'.

  A plate portion 11 ′ that continues perpendicular to the valve holding plate 6 ′ is formed wider and straighter than the plate portion 11 of the embodiment of FIG. 4, and the valve holding groove 6 a ′ is formed smaller than in FIG. 4. . Since the other configuration is the same as that of the embodiment of FIG.

  A reflector 27 is horizontally bent forward from the upper end of one (right side) vertical valve holding plate 6 ', and the reflector 27 is extended to the left side toward the front of the other (left side) valve holding plate 6' (left side). The extended portion is indicated by reference numeral 27b). A reflector 28 is bent and extended horizontally backward from the upper end of the other (left side) vertical valve holding plate 6 ′ in a rotationally symmetrical manner, and the reflector 28 extends to the right side behind the one (right side) valve holding plate 6 ′. It is extended (the extension part on the right side is indicated by reference numeral 28b). The front and rear reflectors 27 and 28 are located on the same horizontal plane. A slight gap 29 is located between the side extensions 27b and 28b of the reflectors 27 and 28 and the upper ends of the valve holding plates 6 '.

  According to the embodiment of FIG. 5, upward irradiation light from the rear end portion or the rear half portion of the valve body 7 (see FIG. 4) protruding rearward of the valve holding groove 6 a ′ is reflected on the inner surface 28 c of the rear reflector 28. Then, the upward irradiation light from most or the front half of the bulb main body 7 projected to the outside from the lens 12 (see FIG. 3) and protruding forward of the bulb holding groove 6a ′ is reflected on the inner surface 27c of the front reflector 27. Then, the light is irradiated from the lens 12 to the outside. The illuminance of the lamp is increased by the direct light from the bulb 7 and the reflected light from the reflectors 27 and 28.

  In the case where the reflector 22 is provided only on the front side of the valve 7 as in the example of FIG. 4, the rear reflector 28 in FIG. 5 can be omitted and only the front reflector 27 can be provided. In the example of FIG. 4, when the pair of valve holding plates 6 ′ are inclined like the example of FIG. 1, the shape of the reflector 22 is formed to prevent interference between the front inner ends of the left and right reflectors 22. Is substantially trapezoidal. Similarly, in the example of FIG. 5, when the pair of valve holding plates 6 ′ are inclined in a tapered shape, the front and rear reflectors 27 and 28 have a shape without mutual interference.

  The lamp bulb holding structure according to the present invention is used as a courtesy lamp to be attached to an automobile door, an interior lamp of an automobile, etc., and prevents the bulb from loosening due to an impact when the door is closed or vibrations while the vehicle is running. It can be attached to and detached from the lamp with good workability, and in addition, it can be used to prevent a decrease in the illuminance of the bulb and increase the illuminance.

2, 3, 2 ', 3' bus bar 4 terminal 6a, 6a 'valve holding groove 6, 6' valve holding plate 7 valve 8 terminal part 5 contact spring part 12 lens 13 connector housing 22, 27, 28 reflector

Claims (4)

  An intermediate portion of the pair of bus bars, comprising: a lens that transmits light from a bulb for illumination; a connector housing provided in the lens; and a pair of bus bars having terminals arranged in the connector housing at one end. The contact spring portion that contacts the terminal portion of the valve is provided, and a valve holding plate that clamps the valve in the plate width direction by the valve holding groove at the tip protrudes inwardly at the other end portion of the pair of bus bars. A structure for holding a lamp bulb, wherein   The lamp bulb holding structure according to claim 1, wherein the pair of bulb holding plates are arranged in a tapered shape in a bulb insertion direction.   The lamp bulb holding structure according to claim 1 or 2, wherein the bulb holding plate is provided with a reflector that reflects light from the bulb toward the lens.   4. The lamp bulb holding structure according to claim 3, wherein the bulb holding plate and the reflector are integrally extended from the contact spring portion.

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