JP2013134830A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device capable of restraining backlash of a bulb by preventing movement of the bulb against a housing.SOLUTION: The lighting device 1 includes the bulb 2 having a base section 23 extended from a light-emitting section 21 in a plate shape, a housing 3 having a storage chamber 30 where the base section 23 is inserted, and a pair of terminals 5 arranged in the storage chamber and sandwiching the base section 23 between them. Electric contact sections 24 connected with the terminals and projections 26 locked to the terminals are arranged on a surface of the base section 23. The projection 26 has a first inclined surface 26a, and a second inclined surface 26b. Each of the pair of terminals has a first spring piece 51 connected with the electric contact section 24, a second spring piece 52 in contact with the surface of the base section in a rear side of the projection, and a third spring piece 53 for locking the projection. The third spring piece 53 has a first contact section 55 in contact with the first inclined surface 26a, and a second contact section 56 in contact with the second inclined surface 26b.

Description

  The present invention relates to a lighting device including a bulb having a base portion extending in a plate shape from a light emitting portion, and a housing having a storage chamber into which the base portion is inserted.

  As a lighting device, a bulb having a base portion extending in a plate shape from a light emitting portion, a housing having a storage chamber into which the base portion is inserted, and a pair provided in the storage chamber and sandwiching the base portion between each other In many cases, a vehicular lighting device including a terminal portion is proposed (see, for example, Patent Document 1 and Patent Document 2).

  As shown in FIG. 7, the vehicle lighting device includes a bulb main body 121 that is a hollow glass bulb in which a light emitting portion (not shown) is housed, and a base portion that extends from the bulb main body 121 in a plate shape. 123, a housing 103 having a storage chamber 130 into which the base portion 123 is inserted, and a pair of terminal portions 105 provided in the storage chamber 130 and sandwiching the base portion 123. . In FIG. 7, an arrow X indicates a direction in which the base portion 123 is inserted into the accommodation chamber 130, and an arrow Z indicates a facing direction of the pair of terminal portions 105.

  The base portion 123 is formed in a rectangular shape, and a lead wire (not shown) and a protrusion 120 are provided on each of the mutually facing surfaces of the base portion 123. The lead wire has one end connected to the light emitting unit and the other end connected to the terminal unit 105. The protrusion 120 has an inclined surface 120 a that is inclined in a direction away from the surface of the base portion 123 as it goes forward in the insertion direction X.

  Each of the pair of terminal portions 105 has a first spring piece (not shown) connected to the lead wire and a curved portion 152a curved toward the base portion 123, and the top of the curved portion 152a is the base portion. And a second spring piece 152 that contacts the surface of the portion 123. The curved portion 152a includes a first contact portion 153 formed along the surface of the valve body 121, and a second contact formed along the inclined surface 120a of the protrusion 120, which is connected to the first contact portion 153. Part 154.

  In the conventional lighting device 101 described above, the base portion 123 is inserted between the pair of terminal portions 105 in a state where the pair of terminal portions 105 are accommodated in the accommodation chamber 130 of the housing 103, thereby The first spring piece is connected to the lead portion, and the second spring piece 152 has its curved portion 152a over the projection 120, and the top of the curved portion 152a is positioned on the rear side in the insertion direction X of the projection 120. The valve 102 is prevented from coming off from the housing 103 by abutting against the surface of 123.

Japanese Patent Laid-Open No. 7-230867 Japanese Patent Laid-Open No. 2-47787

  However, in the conventional illumination device 101 described above, the bulb 102 is generally provided with a predetermined clearance for positioning the curved portion 152a between the bulb body 121 and the protrusion 120. For this reason, when the base portion 123 is inserted between the pair of terminal portions 105 in a state where the pair of terminal portions 105 are accommodated in the accommodation chamber 130, the valve body 121 and the bending portion 152 a, or between the bending portion 152 a and the projection. There was a case where a gap was formed between 120 and 120. In particular, in the case of a valve that is manufactured entirely of glass, such as a wedge-based valve, this tendency is increased because the tolerance is large. Due to this gap, there is a problem that the base portion 123 moves in the insertion direction X with respect to the housing 103, that is, the pair of terminal portions 105 accommodated in the housing 103, and the backlash of the valve 102 occurs. there were.

  The objective of this invention is providing the illuminating device which can prevent the movement of the valve | bulb with respect to a housing and can suppress the backlash of a valve | bulb.

  The present invention according to claim 1 is provided in the housing chamber, the bulb having a base portion extending in a plate shape from the light emitting portion, the housing having the housing chamber into which the base portion is inserted, and between the housing chambers. A lighting device including a pair of terminal portions sandwiching the base portion, and an electrical contact portion connected to the terminal portion on a surface of the base portion, and a protrusion locked to the terminal portion The protrusion is inclined in a direction away from the surface of the base portion toward the front side in the insertion direction of the base portion into the storage chamber, and the front of the first inclined surface. A second inclined surface inclined in a direction approaching the surface of the base portion toward the side, and each of the pair of terminal portions includes a first spring piece connected to the electric contact portion, and the protrusion Than on the surface of the base part on the rear side in the insertion direction A second spring piece contacting the third spring piece, and a third spring piece locking the protrusion, wherein the third spring piece is in contact with the first inclined surface of the protrusion; And a second abutting portion that abuts against the second inclined surface.

  With the above configuration, a pair of terminal portions are accommodated in the housing chamber of the housing, each terminal portion is provided with a third spring piece, and the third spring piece has a first protrusion formed on the base portion. Since the first contact portion that is in contact with the inclined surface and the second contact portion that is in contact with the second inclined surface are provided, the first contact portion acts on the first inclined surface. The force and the acting force on the second inclined surface of the second contact portion work simultaneously, and movement of the valve in the insertion direction with respect to the housing is prevented.

  According to a second aspect of the present invention, in the illumination device according to the first aspect, the first contact portion is formed along the first inclined surface of the protrusion, and the second contact portion is formed of the protrusion. It is formed along the second inclined surface.

  With the above configuration, since the first contact portion is formed along the first inclined surface of the protrusion, the contact area of the first contact portion with the first inclined surface can be increased, and the second contact portion can be increased. However, since the protrusion is formed along the second inclined surface of the protrusion, the contact area of the second contact portion with the second inclined surface can be increased.

  According to a third aspect of the present invention, in the illumination device according to the first or second aspect, the second spring piece is provided with a curved portion that is convex toward the base portion, and the third spring. The piece is provided with a third abutting portion that abuts against the base portion, and the third abutting portion is located on the rear side of the first abutting portion and is opposed to the insertion direction and the pair of terminal portions. The third abutting portion is provided along the surface of the base portion in a position that is aligned with the curved portion in a direction that intersects with the direction, and in the natural state of the terminal portion, Further, it is provided at a position farther from the surface of the base part than the top part of the bending part.

  With the above configuration, the curved portion of the second spring piece abuts on the base portion, and the pair of second spring pieces sandwich the base portion, and intersects in both directions of the insertion direction and the opposing direction of the pair of terminal portions. And a third contact portion formed along the surface of the base portion is in contact with the base portion. In the natural state of the terminal portion, the top portion of the bending portion is provided at a position closer to the surface of the base portion than the third abutting portion, so that when the base portion is inserted between the pair of terminal portions, the bending portion is bent. The end portion of the third contact portion that is away from the curved portion of the third contact portion is lifted in conjunction with the pressing of the end portion of the portion that is away from the third contact portion.

  According to a fourth aspect of the present invention, in the illumination device according to any one of the first to third aspects, the terminal portion includes a terminal main body connected to one end portion of the second spring piece, and the second portion. A connecting portion that is continuous with the other end of the spring piece and wider than the second spring piece, and the third spring piece has one end connected to the connecting portion and the other end on the terminal body side having a free end. It is formed in a cantilever shape.

  With the above configuration, the terminal portion includes a terminal main body that is continuous with one end portion of the second spring piece, and a connecting portion that is continuous with the other end portion of the second spring piece and is wider than the second spring piece. Since the one end is connected to the connecting portion and the other end of the terminal body side is formed in a cantilever shape with a free end, the third spring piece is cut between the terminal body and the second spring piece, It is formed by breaking the second spring piece from the terminal body to the connecting portion.

  According to the first aspect of the present invention, the third spring piece is in contact with the first contact portion that contacts the first inclined surface of the protrusion formed on the base portion and the second inclined surface. The second abutting portion, and the acting force of the first abutting portion on the first inclined surface and the acting force of the second abutting portion on the second inclined surface work simultaneously, and the housing The movement of the valve in the insertion direction is prevented, and the backlash of the valve can be suppressed.

  According to the second aspect of the present invention, the contact area of the first contact portion with the first inclined surface can be increased and the contact area of the second contact portion with the second inclined surface can be increased. The frictional force on the first inclined surface of the first abutting portion and the frictional force on the second inclined surface of the second abutting portion can be increased, thereby further preventing movement of the valve in the insertion direction with respect to the housing. The backlash of the valve can be suppressed.

  According to the third aspect of the present invention, since the top portion of the bending portion is provided at a position closer to the surface of the base portion than the third contact portion, the base portion is inserted between the pair of terminal portions. In this case, the end portion of the bending portion away from the third contact portion is interlocked with being pushed down, and the end portion of the third contact portion away from the bending portion is lifted to suppress the inclination of the base portion. it can.

  According to the fourth aspect of the present invention, the third spring piece is formed by an easy means for cutting the second spring piece from the terminal main body to the connecting portion by making a cut between the terminal main body and the second spring piece. Is done. That is, the terminal portion is formed by punching and bending a conductive sheet metal, but the third spring piece is formed by punching using a mold similar to the conventional terminal portion. Since it forms, the conventional metal mold | die can be utilized and the manufacturing cost of a terminal part can be suppressed.

It is sectional drawing which shows the illuminating device concerning one embodiment of this invention. (A) is a perspective view which shows the valve | bulb which comprises the illuminating device shown by FIG. (B) is sectional drawing which follows the II line | wire in (A). It is a perspective view which shows the terminal part which comprises the illuminating device shown by FIG. (A) is a side view of the terminal part shown by FIG. 3, (B) is a top view. It is sectional drawing which shows a mode that a valve | bulb is inserted in the storage chamber of the housing shown by FIG. It is sectional drawing which shows the state in which the valve | bulb was inserted in the storage chamber of a housing. It is sectional drawing which shows the conventional illuminating device.

  An illuminating device according to an embodiment of the present invention will be described with reference to FIGS. The vehicle room lamp 1 as the lighting device is a device that illuminates the passenger compartment of the automobile by being mounted in a lamp mounting opening provided in a roof trim as an interior wall material that covers a vehicle body panel of the automobile. As shown in FIG. 1, the vehicle room lamp 1 includes a bulb 2 having a base portion 23 extending in a plate shape from a light emitting portion 21, a housing 3 having a receiving chamber 30 into which the base portion 23 is inserted, and a housing 3. And a pair of terminal portions 5 that are provided in the chamber 30 and sandwich the base portion 23 therebetween.

  Here, the direction in which the base portion 23 is inserted into the storage chamber 30 is indicated by an arrow X, the opposing direction of the pair of terminal portions 5 is indicated by an arrow Y, and the direction in which the arrows X and Y cross each other is indicated by an arrow Z. It shows with. Further, in this specification, the front side in the insertion direction (arrow X direction), that is, the right side in the paper surface direction in FIG. 1 is simply expressed as “front”, and the rear side in the insertion direction, ie, in FIG. It may be expressed simply as “rear” on the left side in the paper direction.

  The bulb 2 includes a bulb body 20 that is a hollow glass sphere, a light emitting section 21 provided in the bulb body 20, a pair of electrodes (not shown) connected to the light emitting section 21, And a base portion 23 extending in a plate shape from the end portion.

  As shown in FIG. 2A, the base portion 23 is opposed to the valve body 20 and has a rectangular base surface 23A in plan view, and an edge in the width direction (arrow Y direction) of the base surface 23A. The upper surface 23B and the lower surface 23C are connected to each other, and a pair of side surfaces 23D are connected to both edges in the longitudinal direction (arrow Z direction) of the base surface 23A. A lead wire 24 and four protrusions 25, 26, 27, 28 are provided. Each of the lead wire 24 and the four protrusions 25, 26, 27, and 28 is arranged point-symmetrically with the intersection of diagonal lines on the base surface 23A as the center of symmetry. Hereinafter, the configuration of only the upper surface 23B will be described, and the configuration of the lower surface 23C is the same as that of the upper surface 23B, and will not be described. The lead wire 24 corresponds to an “electric contact portion” recited in the claims.

  The lead wire 24 is provided at an end in the arrow Z direction, one end is connected to the electrode, the other end protrudes from the base surface 23A, and extends along the arrow X direction on the upper surface 23B.

  The four protrusions 25, 26, 27, and 28 are a first protrusion 25 provided at the center in the arrow Z direction on the upper surface 23 B, a second protrusion 26 that is locked to the terminal portion 5, and the second protrusion 26. A third protrusion 27 provided at one end in the arrow Z direction and a fourth protrusion 28 provided at the other end in the arrow Z direction are provided between which the lead wire 24 is positioned. The second protrusion 26 is provided at a position aligned with the third protrusion 27 in the arrow Z direction. The height in the arrow Z direction at the top of the second protrusion 26 is formed to be equal to the height of the top of the third protrusion 27 and the height of the top of the fourth protrusion 28. The fourth protrusion 28 is provided on the side farther from the valve body 20 in the arrow X direction than the second protrusion 26 and the third protrusion 27.

  The outer surface of the first protrusion 25 has an arc shape, one end is provided at an end away from the valve body 20, and the other end extends linearly in the arrow X direction toward the valve body 20. . The other end of the first protrusion 25 is connected to a second inclined surface 26 b (described later) of the second protrusion 26.

  The second protrusion 26 is provided at the center of the upper surface 23B, and is inclined at a first inclined surface 26a inclined in a direction away from the surface of the base portion 23 toward the front, and an edge of the first inclined surface 26a. And a second inclined surface 26b inclined in a direction approaching the surface of the base portion 23 toward the front of the first inclined surface 26a. The first inclined surface 26a is formed to be steeper than the second inclined surface 26b. The second protrusion 26 corresponds to a “protrusion” recited in the claims.

  The housing 3 is made of an insulating synthetic resin, and as shown in FIG. 1, as shown in FIG. 1, a plate-like base wall 31 and an outer cylindrical portion 32 erected in a cylindrical shape from one surface of the base wall 31. An inner cylindrical portion 33 provided on the inner side of the outer cylindrical portion 32, a connector portion 34 that is erected in a cylindrical shape from the other surface of the base wall 31, and into which the mating connector is inserted, and a base wall 31 And a flange portion 35 extending in the outward direction. In the housing 3, the terminal portion 5 is inserted between the outer cylindrical portion 32 and the inner cylindrical portion 33 from the opening side away from the base wall 31 of the outer cylindrical portion 32, and the base portion 23 is connected to the inner cylindrical portion 33. Inserted inside. In this specification, the space in which the terminal portion 5 is accommodated and the space in which the base portion 23 is accommodated in the housing 3 are collectively referred to as “accommodating chamber 30”.

  The inner cylindrical portion 33 is erected in a cylindrical shape from one surface of the base wall 31, and the dimension in the arrow X direction is smaller than the dimension in the arrow X direction of the outer cylindrical portion 32. The bottom surface 33 a of the inner cylindrical portion 33 is located on the rear side of the one side surface of the base wall 31.

  Each of the pair of terminal portions 5 is obtained by bending a conductive sheet metal, and as shown in FIG. 3, a terminal main body 40 formed in a rectangular plate shape in plan view, and the terminal main body 40, a spring part 50 provided on one end side in the width direction (arrow X direction), an extension part 43 narrower than the terminal body 40, which is connected to the other end side in the width direction of the terminal body 40, and the extension A standing portion 44 erected from the edge of the portion 43 in the longitudinal direction (arrow Z direction) and a terminal 45 connected to the erected portion 44 are provided. The terminal 45 is formed in a plate shape that is bent so as to be double, and one end is connected to the standing portion 44 and the other end is linear in a direction away from the terminal body 40 (arrow X direction). It extends. When such a terminal portion 5 is inserted into the accommodation chamber 30 from the terminal 45 side, the terminal body 40 is accommodated between the outer cylinder portion 32 and the inner cylinder portion 33, and the terminal 45 is accommodated in the connector portion 34. Be contained.

  The terminal main body 40 is in contact with the outer surface of the inner cylindrical portion 33 to thereby prevent the terminal portion 5 from rattling with respect to the housing 3 and to prevent the terminal portion 5 from coming out of the storage chamber 30. A stop 42 is provided. As shown in FIG. 4, the contact portion 41 is provided at one end portion in the arrow Z direction, and protrudes from the surface of the terminal body 40 toward the outer surface of the inner cylindrical portion 33, that is, toward the base portion 23. The contact portion 41 protrudes in the same direction as the standing direction of the standing portion 44 described above. The locking part 42 is provided inside the abutting part 41 in the arrow Z direction. When the locking portion 42 is locked to the inner surface of the outer cylindrical portion 32, the terminal portion 5 is attached to the housing 3, and the terminal portion 5 is accommodated in the storage chamber 30.

  As shown in FIG. 4, the spring portion 50 includes a first spring piece 51 connected to the lead wire 24, and a second spring piece 52 that contacts the surface of the base portion 23 on the rear side of the second protrusion 26. A third spring piece 53 for locking the second protrusion 26 and a connecting portion 54 for connecting the second spring piece 52 and the third spring piece 53 are provided. The first spring piece 51 is provided at one end portion in the arrow Z direction, the second spring piece 52 is provided in the other end portion in the arrow Z direction, and the third spring piece 53 includes the first spring piece 51 and the second spring piece. 52. The connecting portion 54 is formed wider than the second spring piece 52, one end is connected to the second spring piece 52 and the third spring piece 53, and the other end is in a direction away from the base portion 23 (arrow Y direction). It extends.

  One end of the first spring piece 51 is connected to an end portion in the width direction (arrow X direction) of the terminal body 40, a U-shaped folded portion 51 a provided on the rear side of the terminal body 40, and the folded portion 51 a. And a mountain-shaped portion 51b provided in front of the folded portion 51a, and the other end is a free end. The folded portion 51 a is bent in a direction toward the base portion 23, and the mountain-shaped portion 51 b is also convexly formed in the direction toward the base portion 23.

  One end of the second spring piece 52 is connected to the terminal body 40, and the other end in the longitudinal direction (arrow X direction) of the second spring piece 52 is connected to the connecting portion 54. The second spring piece 52 is provided with a curved portion 52 a that is convex toward the base portion 23 on the rear side of the mountain-shaped portion 51 b of the first spring piece 51. The curved portion 52a and a third contact portion 57 (described later) of the third spring piece 53 are arranged in the arrow Z direction.

  The third spring piece 53 is connected to the first contact portion 55 that is in contact with the first inclined surface 26a of the second protrusion 26 and the front side of the first contact portion 55, and contacts the second inclined surface 26b. A second abutting portion 56 that is in contact with the first abutting portion 55 and a third abutting portion 57 that abuts against the surface of the base portion 23 are provided. One end of the third spring piece 53 is connected to the connecting portion 54, and the other end on the terminal body 40 side is formed in a cantilever shape with a free end.

  The first contact portion 55 is inclined in a direction away from the surface of the base portion 23 as it goes forward. That is, the first contact portion 55 is formed along the first inclined surface 26a. The second contact portion 56 is connected to the first contact portion 55 and is inclined in a direction approaching the surface of the base portion 23 toward the front side of the first contact portion 55. That is, the second contact portion 56 is formed along the second inclined surface 26b. The third contact portion 57 is formed along the surface of the base portion 23. In the natural state of the terminal portion 5, the third contact portion 57 is provided at a position farther from the surface of the base portion 23 than the top portion of the bending portion 52a.

  Next, a procedure for accommodating the base portion 23 and the pair of terminal portions 5 in the accommodation chamber 30 will be described with reference to FIGS. 5 and 6. First, in each of the pair of terminal portions 5, the terminal body 40 is inserted between the outer cylindrical portion 32 and the inner cylindrical portion 33 from the terminal 45 side in a direction in which the contact portion 41 is brought closer to the outer surface of the inner cylindrical portion 33. Then, the locking portion 42 is locked to the inner surface of the outer cylindrical portion 32, and the terminal portion 5 is attached to the housing 3. The terminal main body 40 and the spring part 50 are accommodated in the accommodating chamber 30, and the terminal 45 is accommodated in the connector part 34. At this time, the contact portion 41 is in contact with the outer surface of the inner cylindrical portion 33. In this state, as shown in FIG. 5, the valve 2 is inserted between the pair of terminal portions 5 from the base portion 23 side in a direction in which the lead wire 24 approaches the first spring piece 51. The chevron 51 b of the first spring piece 51 abuts on the lead wire 24. When further inserted, the curved portion 52a of the second spring piece 52 comes into contact with the surface of the base portion 23, and the end portion of the curved portion 52a away from the third contact portion 57 is pushed down and interlocked therewith, so that the third contact. The end of the portion 57 away from the curved portion 52 a is lifted, and the edge of the third abutting portion 57 on the side away from the curved portion 52 a comes into contact with the surface of the base portion 23.

  When further inserted, the third contact portion 57 of the third spring piece 53 comes into contact with the second inclined surface 26b, the third spring piece 53 and the connecting portion 54 bend outward in the arrow Z direction, and the third contact portion. As shown in FIG. 6, 57 rides on the second inclined surface 26b, contacts the surface of the base portion 23, the first contact portion 55 contacts the first inclined surface 26a, and contacts the second inclined surface 26b. The second contact portion 56 contacts. Thus, the third spring piece 53 locks the second protrusion 26. Thereby, the acting force F1 of the first abutting portion 55 on the first inclined surface 26a, the acting force F2 of the second abutting portion 56 on the second inclined surface 26b, and the base portion 23 of the third abutting portion 57. The acting force F3 on the surface of the valve 2 acts simultaneously, and movement of the valve 2 in the insertion direction (arrow X direction) with respect to the housing 3 is prevented. Further, since the first contact portion 55 is formed along the first inclined surface 26 a, the contact area of the first contact portion 55 with the first inclined surface 26 a can be increased, and the second contact portion 56. Is formed along the second inclined surface 26 b, the contact area of the second contact portion 56 with the second inclined surface 26 b can be increased, and the third contact portion 57 is formed on the surface of the base portion 23. Therefore, the contact area of the third contact portion 57 with the surface of the base portion 23 can be increased.

  At the same time, the curved portion 52a of the second spring piece 52 comes into contact with the second inclined surface 26b, the second spring piece 52 and the connecting portion 54 bend outward in the direction of the arrow Z, and the curved portion 52a becomes the second inclined surface. 26b rides on and rides over the surface of the base portion 23 on the rear side of the second protrusion 26. Thereby, the valve 102 is prevented from coming off from the housing 103. Thus, the base portion 23 is accommodated in the accommodation chamber 30.

  According to the above-described embodiment, the third spring piece 53 includes the first abutting portion 55 that abuts on the first inclined surface 26 a of the second protrusion 26 formed on the base portion 23, and the second inclined surface. And the second abutting portion 56 that abuts on the second abutting portion 26b, the acting force F1 on the first inclined surface 26a of the first abutting portion 55 and the second inclination of the second abutting portion 56 are provided. The acting force F <b> 2 on the surface 26 b works simultaneously, preventing movement of the valve 2 in the insertion direction (arrow X direction) with respect to the housing 3, and suppressing the backlash of the valve 2.

  Further, since the contact area of the first contact portion 55 with the first inclined surface 26a can be increased, and the contact area of the second contact portion 56 with the second inclined surface 26b can be increased, the first contact portion 55 can be increased. The frictional force on the first inclined surface 26a and the frictional force on the second inclined surface 26b of the second abutting portion 56 can be increased, thereby further increasing the direction in which the valve 2 is inserted into the housing 3 (the direction of the arrow X). ) Is prevented, and the backlash of the valve 2 can be suppressed.

  Further, since the top portion of the bending portion 52 a is provided at a position closer to the surface of the base portion 23 than the third contact portion 57, the bending portion 52 a is bent when the base portion 23 is inserted between the pair of terminal portions 5. The end of the third abutting part 57 away from the curved part 52a is lifted in conjunction with the end of the part 52a away from the third abutting part 57 being pushed down, and the inclination of the base part 23 is suppressed. Can do.

  In addition, the third spring piece 53 is formed by an easy means that cuts between the terminal body 40 and the second spring piece 52 and breaks the second spring piece 52 from the terminal body 40 to the connecting portion 54. That is, the terminal portion 5 is formed by punching and bending a conductive sheet metal, but the third spring piece 53 is punched using a mold similar to the conventional terminal portion. Therefore, the conventional mold can be used, and the manufacturing cost of the terminal portion 5 can be suppressed.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

1 Vehicle room lamp (lighting device)
2 Valve 3 Housing 5 Terminal portion 21 Light emitting portion 23 Base portion 24 Lead wire (electric contact portion)
26 Second protrusion (protrusion)
26a 1st inclined surface 26b 2nd inclined surface 30 Storage chamber 51 1st spring piece 52 2nd spring piece 52a Bending part 53 3rd spring piece 55 1st contact part 56 2nd contact part 57 3rd contact part

Claims (4)

A bulb having a base portion extending in a plate shape from the light emitting portion; a housing having a storage chamber into which the base portion is inserted; and a pair of terminal portions provided in the storage chamber and sandwiching the base portion therebetween A lighting device comprising:
On the surface of the base portion, an electrical contact portion connected to the terminal portion and a protrusion locked to the terminal portion are provided,
The protrusion has a first inclined surface that is inclined in a direction away from the surface of the base portion as it goes toward the front side in the insertion direction of the base portion into the accommodation chamber, and the protrusion as it goes toward the front side of the first inclined surface. A second inclined surface inclined in a direction approaching the surface of the base portion,
Each of the pair of terminal portions includes a first spring piece connected to the electrical contact portion,
A second spring piece that contacts the surface of the base portion on the rear side in the insertion direction with respect to the protrusion;
A third spring piece for locking the protrusion,
The third spring piece includes a first contact portion that contacts the first inclined surface of the protrusion and a second contact portion that contacts the second inclined surface. A lighting device characterized by the above.   The first contact portion is formed along the first inclined surface of the protrusion, and the second contact portion is formed along the second inclined surface of the protrusion. Item 2. The lighting device according to Item 1. The second spring piece is provided with a curved portion formed convex toward the base portion,
The third spring piece is provided with a third contact portion that contacts the base portion,
The third abutting portion is provided on a rear side of the first abutting portion at a position aligned with the bending portion in a direction intersecting in both directions of the insertion direction and the opposing direction of the pair of terminal portions. And is formed along the surface of the base portion,
The said 3rd contact part is provided in the position away from the surface of the said base part rather than the top part of the said curved part in the natural state of the said terminal part, The Claim 1 or Claim 2 characterized by the above-mentioned. Lighting equipment. The terminal portion is
A terminal body connected to one end of the second spring piece;
A connecting portion that is continuous with the other end of the second spring piece and is wider than the second spring piece;
4. The lighting device according to claim 1, wherein one end of the third spring piece is connected to the connecting portion and the other end of the terminal main body is formed in a cantilever shape having a free end.

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