JP2013008509A - Vehicular lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular lamp facilitating exchange of a light source from the rear side of the lamp.SOLUTION: The vehicular lamp has a light source 21 of which light source body 24 is integrated in a socket 22, arranged in a lamp chamber S, and a power supply wire 63 in the lamp chamber is connected to the socket 22 of the light source 21 through a connector 50. The light source 21 is inserted from the outside of lamp into an opening portion 13a provided in the lamp body 12 and extends inside the lamp chamber S, and is detachable to the outside of the lamp with the connector 50 attached (connected with the power supply wire 63). Since the light source 21 can be inserted and detached from the opening portion 13a of the light source 21 while viewing the engagement part of the light source 21 and the opening portion 13a, exchange work of the light source 21 is simplified.

Description

  The present invention relates to a vehicular lamp in which a light source is disposed in a lamp chamber, and more particularly, to a vehicular lamp in which a power supply line for supplying external power extending into the lamp chamber is connected to a light source via a light source connector.

  In this type of vehicular lamp, as shown in Patent Document 1 below, a plurality of light sources are arranged in a lamp chamber defined by a lamp body and a front cover, and a predetermined position on the back wall of the lamp body is provided from an external power source. An aggregation connector to which an extending feeder line is connected is provided, and a plurality of feeder lines extending from the aggregation connector into the lamp chamber via a light source connector constituting each bulb housing, a wedge base bulb (a capless bulb as a light source) ), The external power is supplied to each of the plurality of light sources (wedge base bulbs).

  A plurality of light sources are arranged in the lamp chamber, but since the power supply lines extending from the external power source to the lamp are concentrated in the aggregate connector, the aggregate connector is placed at a predetermined position of the lamp body (for example, in the vehicle width direction inside the lamp). By providing the power supply lines extending from the external power supply to the lamp, the space behind the lamp assembled to the vehicle body can be used effectively.

JP 2007-220433 A (FIGS. 1 and 2)

  However, in this type of vehicle lamp, there is a case where it is desired to replace the light source. However, in the lamp of Patent Document 1 described above, the opening for replacing the bulb is not provided on the rear wall of the lamp body. Cannot replace the light source.

  Accordingly, the inventor provided an opening of a predetermined size with a removable back cover mounted at a position corresponding to the light source on the back wall of the lamp body, and a bulb housing in which the bulb is integrated through the opening. It was considered that the (light source connector) is extracted or inserted behind the lamp, that is, the back cover method widely known for this type of lamp is employed.

  However, in order to replace the light source, a finger is inserted into the lamp chamber from the opening from which the back cover is removed, the valve housing is unlocked from the insertion hole on the reflector side, and the valve housing is grasped to temporarily open the opening. It is necessary to pull it out rearward, replace it with a new light bulb, insert the valve housing into the reflector side insertion hole through the opening again, and lock it.

  Specifically, since the light source replacement work is performed with an unreasonable posture with the hand inserted into the narrow space behind the lamp from the front of the vehicle with the hood of the vehicle opened, it is positioned inside the light source replacement opening. The engaging portion between the valve housing and the reflector side insertion hole is naturally not visible to the operator. Therefore, the work of fixing and holding the bulb housing in the lamp chamber and the operation of releasing the fixed holding are frustrating, and there arises a problem that it is a very troublesome work requiring experience and skill.

  Therefore, the inventor provides the bulb housing with a function as a back cover (a function that is detachably provided in the opening provided on the rear wall of the lamp body and closes the opening). Since the engaging part of the valve is visible to the operator, it was thought that the replacement work of the valve becomes easy.

  The present invention has been made in view of the problems of the prior art and based on the above-mentioned knowledge of the inventor, and an object thereof is to provide a vehicular lamp in which a light source can be easily exchanged from behind the lamp. is there.

In order to solve the above-mentioned problem, in the vehicular lamp according to claim 1, a light source in which a light source body is integrated with a socket is disposed in a lamp chamber defined by a lamp body and a front cover. A vehicle lamp in which a power supply line for supplying external power is connected to the socket of the light source via a light source connector,
An opening is provided in the lamp body, and the light source is configured to extend into the lamp chamber by inserting a socket of the light source into the opening from the outside of a lamp, and in a form in which the power supply line is connected. It was constructed so that it could be removed from the lamp.

  (Operation) To replace the light source, first, the light source is detached from the lamp. Specifically, the light source (socket) is disengaged from the opening and the light source connector is inserted (connector female part and connector male part are connected), that is, the power supply line is connected to the light source via the light source connector. The light source is extracted from the opening to the outside of the lamp while being connected to the socket.

  Next, if the connector for the light source is removed (connector female part and connector male part are separated), the connection with the light source (socket) of the power supply line led out from the lamp chamber is disconnected, and the light source is reliably separated from the lamp. It will be in the state. That is, the light source can be reliably separated from the lamp by detaching the connector and disconnecting the power supply line extending from the lamp chamber from the light source while the entire light source is extracted from the opening together with the light source connector.

  Here, the light source is replaced with a new one. Specifically, in the case of a light source that can separate the light source body (incandescent bulb) from the socket, such as an incandescent bulb, replace only the light source body with a new one, and from the socket to the light source body (arc tube), such as a discharge bulb. If the light source cannot be separated, replace the light source with a new one.

  Then, by inserting the light source connector (connecting the connector female part and the connector male part), the power supply line led out from the room is connected to the socket of the new light source, and then the new light source and the lamp are connected together. Insert from the outside into the opening.

  In this light source replacement work, in general, the operator is forced to put his hand in the narrow space behind the lamp from the top of the front of the car with the hood of the car open. hard. However, since the engaging portion between the light source and the opening is in a position that can be seen by the operator, the operator can visually check the engaging portion between the light source and the opening from above the narrow space behind the lamp. Insertion into and removal from the opening can be performed.

  According to claim 2, in the vehicular lamp according to claim 1, a plurality of the light sources are arranged in the lamp chamber and connected to sockets of the plurality of light sources via the light source connectors, respectively. The power supply line is configured to be connected to the power supply line outside the lamp room via an aggregation connector provided at a predetermined position of the lamp body.

  (Operation) Since the power supply line outside the lamp room (the power supply line extending from the external power source to the lamp) is concentrated on the aggregation connector provided on the lamp body, the position where the power supply line outside the lamp room is routed is changed depending on the position where the aggregation connector is provided. be able to.

  In addition, even when a plurality of light sources are arranged above and below the lamp chamber and a plurality of openings provided in the lamp body back wall overlap each other, the engaging portions of the light sources and the openings are respectively connected to the back of the lamp. At least a part of the engaging portion between the light source and the opening on the lower side by tilting the operator's line of sight from above the lamp to either the left or right with respect to the vertical direction in which the opening overlaps Thus, the operator can insert / remove the light source into / from the opening while visually recognizing the engaging portion between the light source and the opening on the lower side from the upper oblique direction of the narrow space behind the lamp. .

  According to a third aspect of the present invention, in the vehicular lamp according to the first or second aspect, a bayonet engaging means for retaining the socket of the light source is interposed between the outer periphery of the socket of the light source and the opening, and The opening is sealed, and an O-ring that holds the bayonet engaging portion of the bayonet engaging means in a pressure contact state is loaded.

  (Operation) For example, the opening is formed in a circular shape, and the region where the circular opening in the socket of the light source engages is also formed in a circular cross section. On the outer periphery of the socket, there are formed an engaging projection (bayonet portion) and a flange portion that are slidable along the inner and outer surfaces of the peripheral edge of the circular opening portion, while the engaging protrusion (bayonet portion) is formed on the circular opening portion. A notch that engages in the axial direction is formed, and bayonet engaging means is configured to allow the engaging projection to be taken in and out of the opening and to rotate the light source (socket) in the circumferential direction of the opening.

  That is, by a circular opening provided on the outer periphery of the socket of the light source, which is an engagement protrusion which is a plurality of bayonet portions in the circumferential direction, and a plurality of notches that can be engaged with the engagement protrusions on the socket side in the axial direction. A bayonet engaging portion that holds and holds the socket of the light source is configured.

  The O-ring loaded between the flange on the socket side of the light source and the peripheral edge of the circular opening seals the circular opening and press-contacts the bayonet engaging part (engaging protrusion and circular opening). Therefore, the socket of the light source is fixed and held at a predetermined position in the circumferential direction of the circular opening.

  Therefore, when the light source is inserted into the circular opening, the socket of the light source is inserted into the circular opening so that the O-ring is compressed so that the engagement protrusion is aligned with the notch of the circular opening in the axial direction. Then, the bayonet engaging portion (engagement protrusion and circular opening) is engaged, and the bayonet engaging portion is held in a pressure-contacted state by the elastic force of the O-ring, so that the socket of the light source is It is fixed and held at a predetermined position in the circumferential direction of the circular opening. On the other hand, when the socket of the light source is rotated from this state to the position where the engaging protrusion is aligned with the notch of the circular opening in the axial direction, the bayonet engaging part is disengaged and the socket of the light source is extracted from the circular opening. (Light source can be removed).

  According to a fourth aspect of the present invention, in the vehicular lamp according to any one of the first to third aspects, the light source connector can be inserted and removed along the extending direction of the socket.

  (Operation) To insert and remove the light source from the outside of the lamp to the light source replacement opening with the light source connector inserted, that is, with the power supply line connected to the socket of the light source via the light source connector. For this, it is essential that the size of the entire outer periphery of the light source including the connector is smaller than the size of the light source replacement opening.

  The light source connector is composed of a connector female part and a connector male part, and requires a certain size in the connector insertion / removal direction (connecting / separating direction of the connector female part and the connector male part) In the direction orthogonal to the insertion / removal direction of the connector, the size is not required.

  For this reason, in claim 4 in which the insertion / removal direction of the connector is along the extension direction of the socket, the size of the outer periphery of the entire light source extending into the lamp chamber including the connector is not so large, and the opening portion is accordingly increased. The size can be reduced.

  According to a fifth aspect of the present invention, in the vehicular lamp according to any one of the first to third aspects, the light source connector can be inserted and removed in a direction substantially orthogonal to the extending direction of the socket.

  (Operation) In order to effectively use the light emission of the light source body, a reflector that reflects the light emission of the light source body in a predetermined direction in front of the lamp chamber may be arranged near the light source in the lamp chamber. According to claim 4, which can be attached and detached along the extending direction, the reflector is sufficiently extended to a position close to the socket in order to avoid interference with the light source connector extending in parallel with the socket to a certain size. The effective reflection area of the reflector cannot be enlarged.

  However, according to the fifth aspect of the present invention, the light source connector is provided in the vicinity of the light source replacement opening (the base end of the socket) provided with a light source connector extending in a certain size in a direction substantially orthogonal to the extending direction of the socket. By designing to be close to the part, the reflector can be extended to a position approaching the socket without interfering with the connector, and the effective reflection area of the reflector can be expanded.

  As is clear from the above description, according to the vehicular lamp according to the present invention, an operator can insert / remove the light source into / from the opening while visually recognizing the engaging portion between the light source and the opening. Therefore, even a beginner with little experience and skill can easily perform light source replacement work.

  In particular, in the state where the light source in the form in which the light source connector is inserted (the light source in the form in which the power supply line is connected) is extracted outside the lamp, the light source connector is inserted and removed (connection between the power supply line extending from the lamp chamber and the light source And the light source can be exchanged more smoothly.

  According to the second aspect of the present invention, the space behind the lamp is effectively used by providing the aggregation connector at a predetermined position of the lamp body (for example, a predetermined position where the power supply line outside the lamp room does not narrow the space behind the lamp). This increases the degree of freedom in designing the power supply line outside the lamp room.

  Moreover, even if a plurality of light sources are arranged above and below the lamp chamber, the operator can insert and remove the light sources into and from the openings while visually recognizing the engaging portions between the respective light sources and the openings. Therefore, even a beginner with little experience and skill can easily perform light source replacement work.

  According to the third aspect, since the bayonet engaging portion can be engaged and disengaged only by rotating the socket of the light source in the circumferential direction of the opening, the light source can be easily inserted into and removed from the opening. The light source replacement work is further simplified.

  In addition, since the opening into which the light source is inserted is sealed with an O-ring, waterproofing in the lamp chamber is ensured.

  According to claim 4, since the size of the outer periphery of the entire light source extending into the lamp chamber including the light source connector can be made compact, the size of the opening can be reduced. The occupied space can be reduced.

  Moreover, since the opening can be made smaller, the opening sealing means becomes compact and the waterproof function in the opening is improved.

  According to claim 5, when a light distribution forming reflector is disposed in the vicinity of the light source to effectively use the light emission of the light source body, the reflector can be extended to a position approaching the socket without interfering with the light source connector. As a result, the effective reflection area of the reflector is expanded, and the light distribution of the lamp can be further increased.

It is a longitudinal cross-sectional view of the headlamp for motor vehicles which is the 1st Example of this invention. It is an expanded vertical sectional view of the marker lamp unit which is the principal part of the headlamp. It is explanatory drawing explaining the procedure of the operation | work which replaces the light source of a marker lamp unit, (a) is a figure which shows the state which extracts a light source from an opening part, (b) shows the state which replaces the light source main body of the light source isolate | separated from the lamp. FIG. 4C is a diagram showing a state where a light source is inserted into the opening. It is a longitudinal cross-sectional view of the marker lamp unit which is the principal part of the vehicle headlamp which is the 2nd Example of this invention.

  A first embodiment in which a vehicular lamp according to the present invention is applied to an automotive headlamp will be described with reference to FIGS. FIG. 1 is a longitudinal sectional view of an automotive headlamp according to a first embodiment of the present invention, FIG. 2 is a longitudinal sectional view of a marker lamp unit which is a main part of the headlamp, and FIG. It is explanatory drawing explaining the procedure of the operation | work which replaces | exchanges a light source.

  In FIG. 1, an automotive headlamp (lamp) 10 includes a container-shaped lamp body 12 that opens on the front side, and a front cover 18 that is assembled to the front opening of the lamp body 12. In the formed lamp chamber S, a marker lamp unit 20 and a headlamp unit 40 are arranged.

  As shown in FIGS. 1 and 2, the marker lamp unit 20 disposed in the upper part of the lamp chamber S has a light source (incandescent bulb) inserted in a circular opening 13 a for light source replacement provided on the rear wall of the lamp body 12. ) 21 and a parabolic reflector 26 for forming a light distribution that is supported by an extending portion 12a that extends forward from the rear wall of the lamp body 12 and reflects light emitted from the light source 21 to the front of the lamp chamber. I have.

  The light source (incandescent bulb) 21 includes a resin socket 22 that is inserted into the circular opening 13 a from the rear of the lamp 10 and extends forward, and a light source body that is inserted into the bulb insertion hole 22 a at the front end of the socket 22. The incandescent lamp 24 is a socket 22 in which the incandescent lamp 24 is inserted and integrated. The socket 22 extends forward through the central circular hole 26 a of the reflector 26, and the light emission center of the incandescent lamp 24 is the focal position of the reflector 26. Almost matches.

  Further, at the base end portion of the socket 22, a front surface portion 22b having a circular cross section that engages with the circular opening portion 13a and a flange portion 23 that engages with an outer peripheral edge portion of the circular opening portion 13a are integrally formed. On the outer periphery of the front surface portion 22b, engagement protrusions 34, which are bayonet portions, are formed at approximately three locations in the circumferential direction. Reference numeral 22 c is a rotation operation unit formed integrally with the rear end of the socket 22.

  On the other hand, the circular opening 13a of the lamp body 12 is provided with three notches 14 each having a size that engages with the three engaging protrusions 34 on the socket 22 side in the axial direction. The engaging protrusion 34 can move (insert / eject) into and out of the circular opening 13a. And between the outer periphery part of the circular opening part 13a, and the flange part 23 of socket 22 outer periphery, the circular opening part 13a is sealed, and the bayonet engaging part 30 comprised by the engagement protrusion 34 and the circular opening part 13a. Is mounted in an O-ring 36 that holds the pressure contact state.

  Further, the outer peripheral edge of the circular opening 13a of the lamp body 12 is formed with a standing wall 16 for engaging the flange 23 extending in a cylindrical shape so as to surround the circular opening 13a. 21) can rotate smoothly around the axis (circular direction of the circular opening 13a).

  Further, as shown in FIG. 1, the headlamp unit 40 disposed below the lamp chamber S includes a projection convex lens 42, a light distribution forming shade 44, an elliptical reflecting mirror 46, and a light source (discharge bulb) 48. It consists of

  The projection convex lens 42, the light distribution forming shade 44 and the elliptical reflecting mirror 46 are integrated as a projection unit 41 and supported by a lamp bracket 12 b extending from the rear wall of the lamp body 12.

  On the other hand, a light source (discharge bulb) 48 is a socket (cylindrical insulation) that is inserted from the rear of the lamp 10 into a circular opening 13b for light source replacement provided at a predetermined position on the rear wall of the lamp body 12 and extends forward from the lamp chamber. ) 48a and a light source body (arc tube) 48b that is integrated with the socket 48a and extends forward, and both 48a and 48b are integrated so that they cannot be separated.

  The light source body 48b extending forward from the socket 48a passes through the circular hole 46a of the elliptical reflecting mirror 46 constituting the projection unit 41, and the light emission center of the light source body 48b is located at the second focal position of the elliptical reflecting mirror 46. It almost matches.

  Further, at the base end portion of the socket 48a, a front surface portion 22b having a circular cross section that engages with the circular opening portion 13b, a flange portion 23 that engages with an outer peripheral edge portion of the circular opening portion 13b, and a rotation operation portion 22c. Engagement projections 34, which are bayonet portions, are formed at approximately three locations in the circumferential direction on the outer periphery of the front surface portion 22b.

  On the other hand, a cutout 14 corresponding to the engaging protrusion 34 is formed in the circular opening 13b, and the bayonet engaging portion 30 is configured by the circular opening 13b and the engaging protrusion 34. The relative sliding portion between the circular opening 13b and the flange portion 23 is loaded with an O-ring 36 to seal the circular opening 13b, and the circular opening 13b and the engagement protrusion 34 are pressed against each other. Held in a state.

  The bayonet engagement means interposed between the light source 48 of the headlamp unit 40 and the circular opening 13a is the same as the bayonet engagement means interposed between the light source 21 of the marker lamp unit 20 and the circular opening 13a. Therefore, the illustration and redundant description are omitted.

  The light source 21 (48) is connected to a lamp interior power supply line 63 (64) for supplying external power via a connector 50 constituted by a connector male part 52 and a connector female part 54. Specifically, as shown in FIGS. 1 and 2, a connector male part 52 exposing a pair of male terminals in a direction orthogonal to the socket extending direction is integrally formed on the side surface of the socket 22 of the light source. The lamp interior feeder 63 (64) extending from the connector female part 54 inserted into the connector male part 52 is held by the clamp member 63a (64a) provided in the lamp body 12 so as to be loosened in the vicinity of the opening 13a (13b). Has been. For this reason, as will be described later, the light source 21 (48) can be extracted outside the lamp in a form in which the lamp interior power supply line 63 (64) is connected. By separating the connector female portion 54 from the connector male portion 52 on the 22 side, the connection between the light source 21 (48) and the feeder line 63 (64) can be disconnected.

  Further, as shown in FIG. 1, the power supply lines extending from the external power source (not shown) to the light sources 21 and 48 are the lamp-side power supply lines 61 and 62 extending from the external power source to the lamp, and the lamp chamber to the light sources 21 and 48. The lamp interior power supply lines 63 and 64 are connected to each other, and the lamp exterior power supply lines 61 and 62 and the lamp interior power supply lines 63 and 64 are connected via an aggregation connector 70 provided on the rear wall of the lamp body 12.

  That is, the lamp chamber power supply lines 63 and 64 extending into the lamp chamber S from the connector male portion 72 of the aggregation connector 70 provided on the rear wall of the lamp body 12 are connected to the connector female portion 54 of the light source connector 50 and are connected to the external power source. The power supply lines 61, 62 extending from the lamp to the lamp are connected to the connector female portion 74 of the aggregation connector 70, and the aggregation connector 70 is inserted (the connector male portion 72 and the connector female portion 74 are connected), By inserting the light source connector 50 (connecting the connector male part 52 and the connector female part 54), external power is supplied to the light source 21 of the marker lamp unit 20 and the light source 48 of the headlamp unit 40, respectively. It is configured.

  As described above, in this embodiment, the aggregation connector 70 that consolidates the power supply lines 61 and 62 outside the lamp room is provided at the lower position of the rear wall of the lamp body 12, so that the power supply lines 61 and 62 outside the lamp room are light sources described later. Therefore, the space behind the lamp 10 can be used effectively so as not to obstruct the replacement work.

  Next, a procedure for replacing the light source 21 of the marker lamp unit 20 will be described with reference to FIG.

  First, the light source 21 is removed from the rear of the lamp 10. Specifically, the light source (socket 22) and the light source (socket 22) are opened by releasing the engagement of the bayonet engaging portion 30 by grasping the turning operation portion 24 of the light source (socket 22) with a finger and turning counterclockwise. The bayonet engagement with the part 13a is released. 3A, the light source connector 50 is inserted (connector female portion 54 and connector male portion 52 are connected), that is, the power supply line 63 is connected to the light source 21 via the connector 50. The light source 21 is extracted from the opening portion 13a to the outside of the lamp 10 with the form connected to the socket 22.

  Next, as shown by an arrow B in FIG. 3A, when the connector 50 is detached (the connector female portion 54 is separated from the connector male portion 52), the light source 21 of the feeder line 63 led out from the lamp chamber S ( The socket 22) is disconnected and the light source 21 is reliably separated from the lamp 10.

  That is, as shown in FIG. 3A, the connector 50 is detached and the power supply line 63 extending from the lamp chamber S is connected to the light source 21 in a state where the entire light source 21 together with the connector 50 is extracted from the opening 13a. By removing the, the light source 21 is reliably separated from the lamp 10.

  Here, as shown by arrows C and D in FIG. 3 (b), the light source body (incandescent light bulb) 24 inserted in the socket 22 is replaced with a new one, and then the arrow E shown in FIG. 3 (b). In this way, the separated connector 50 is inserted (connector female portion 54 is connected to connector male portion 52), and the feeder wire 63 led out from the lamp chamber S is connected to the new light source 21 (socket 22). Connect to.

  Then, as shown in FIG. 3C, the new light source 21 is inserted into the opening 13a from the outside of the lamp 10 together with the connector 50, and rotated counterclockwise to engage the bayonet engaging portion 30. Thus, the light source 21 is inserted into the opening 13a.

  In the work of replacing the light source 21, the operator is forced to put his hand in the narrow space behind the lamp from the upper front of the car with the hood of the car opened, and the work is done accordingly. hard. However, since the engaging portion between the light source 21 and the light source replacement opening 13a is in a position that can be seen by the worker, the worker can open the light source 21 and the light source replacement opening from above the narrow space behind the lamp 10. The light source 21 can be inserted into and removed from the opening 13a while visually recognizing the engaging portion with 13a.

  In addition, when replacing the light source 48 of the headlamp unit 40, the procedure for replacing the light source 21 of the marker lamp unit 20 is the same as the procedure for replacing the light source 21 of the marker lamp unit 20. The light source 48 can be inserted into and removed from the opening 13b while visually recognizing the engaging part with the light source replacement opening 13b.

  Thus, the operator can insert and detach the light sources into the openings 13a and 13b while visually recognizing the engaging portions between the light sources 21 and 48 and the light source replacement openings 13a and 13b. Even a beginner with little experience and skill can easily replace the light sources 21 and 48.

  In particular, since the connector 50 can be inserted and removed while the light sources 21 and 48 having the connector 50 attached are extracted from the lamp 10, the light source 21 and 48 can be exchanged more smoothly.

  In addition, the connector 50 is configured so that it can be inserted / removed in a direction substantially orthogonal to the extending direction of the socket 22 (connector female part 54 and connector male part 52 are connected / separated). In order to avoid interference with the connector 26, the reflector 50 is extended to a position near the socket 22 by arranging the connector 50 near the base end of the socket 22 (near the light source replacement opening 13a). Effective use of light source light is attempted by enlarging the effective reflection surface of the reflector 26.

  That is, it is easier to insert and remove the connector 50 when the connector 50 is provided near the tip of the socket 22, but the connector 50 that extends greatly in the direction orthogonal to the socket 22 interferes with the reflector 26. The reflector 26 cannot be extended to the vicinity of the socket 22. Therefore, by designing the connector 50 to be close to the base end of the socket 22 (near the light source replacement opening 13a) so as not to interfere with the reflector 26, the reflector 26 extends to a position near the socket 22. The effective reflection area of the reflector 26 is increased, and the light distribution amount of the marker lamp unit 20 is increased.

   Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 4 is a longitudinal sectional view of a marker lamp unit which is a main part of an automotive headlamp according to a second embodiment of the present invention.

  In the first embodiment described above, since the insertion / removal direction of the connector 50 connecting the lamp power supply line 63 and the light source 21 is configured to be orthogonal to the direction in which the socket 22 extends, the lamp including the connector 50 is included. While the size of the outer periphery of the entire light source 21 extending into the room (the outer diameter of the front end portion 22b of the base end portion of the socket 22) is increased to some extent, the light source replacement opening 13a is correspondingly increased. In the second embodiment, since the insertion / removal direction of the connector 50 connecting the power supply line 63 and the light source 21 is configured along the direction in which the socket 22 extends, the connector 50 extends into the lamp chamber including the connector 50. The size of the outer periphery of the entire light source 21 (the outer diameter of the base end portion front surface portion 22b of the socket 22) is not so large, and the light source replacement opening 13a can be reduced accordingly.

  Others are the same as in the first embodiment described above, and therefore, the same reference numerals are given and the redundant description is omitted.

  In the second embodiment, since the size D of the light source replacement opening 13a can be made smaller than in the first embodiment, the space occupied behind the lamp 10 for light source replacement can be reduced.

  Further, since the size of the opening 13a for replacing the light source is reduced, the O-ring 36 that is a sealing member becomes compact and the waterproof function in the opening 13a is improved.

  In the first and second embodiments described above, the marker lamp unit 20 is provided with a reflector 26 that reflects the light emitted from the light source body 24 in the front of the lamp chamber around the light source body 24 so that the light emitted from the light source body 24 is effective. However, it may be a direct-type marker lamp unit that forms a light distribution mainly by the light emission of the light source body 24 without providing the reflector 26.

  In the embodiment described above, the light source 21 (socket 22) is inserted into the light source replacement opening 13a by bayonet engagement, but the light source 21 (socket 22) can be removed from the opening 13a. The fixing means is not limited to fixing by bayonet engagement, but may be other known fixing means that can be removed with screws.

  In the above-described embodiment, the light source replacement openings 13a and 13b are provided at positions corresponding to the light sources 21 and 48 on the rear wall of the lamp body 12, respectively, but the positions at which the openings 13a and 13b are provided. Is not limited to the rear wall of the lamp body 12, but may be any position corresponding to the light sources 21 and 48 in the lamp body 12.

  In the above-described embodiment, the light sources 21 and 48 are disposed in the lamp chamber S, and the lamp chamber power supply lines 63 and 64 respectively connected to the sockets 22 and 48a of the light sources 21 and 48 via the light source connector 50 are provided. The lamp body 12 is connected to the power supply lines 61 and 62 outside the lamp chamber via an aggregation connector 70 provided at a predetermined position, but two or more light sources are arranged in the lamp chamber S and are connected via a light source connector. A structure in which the power supply line in the lamp connected to the socket of each light source is connected to the power supply line outside the lamp room via an aggregation connector 70 provided at a predetermined position of the lamp body 12 may be adopted.

10 Automotive headlamps
12 Lamp body S Lamp chamber 13a, 13b Light source replacement opening (circular opening constituting a bayonet engaging portion)
14 Notch 18 Front cover 20 Indicator light unit 21 Light source (incandescent bulb)
22 Socket 22b Socket front end 23 Flange 24 Light source body (incandescent light bulb)
30 Bayonet engagement portion 34 Engagement protrusion which is a bayonet portion 36 O-ring which is an opening sealing member 40 Headlight unit 41 Projection unit 48 Light source (discharge bulb)
48a socket (insulating base)
48b Light source body (arc tube)
DESCRIPTION OF SYMBOLS 50 Light source connector 52 Connector male part 54 Connector female part 61,62 Lamp room feed line 63,64 Lamp room feed line 70 Aggregation connector 72 Connector male part 74 Connector female part

Claims (5)

A light source in which a light source body is integrated with a socket is disposed in a lamp chamber defined by a lamp body and a front cover, and an external power supply feeder line extending into the lamp chamber is connected to the light source via a light source connector. A vehicular lamp connected to a socket,
An opening is provided in the lamp body, and the light source has a socket of the light source that is inserted into the opening from the outside of the lamp and extends into the lamp chamber, and is connected to the power supply line. A vehicle lamp characterized in that it can be attached to and detached from   A plurality of the light sources are arranged in the lamp chamber, and a plurality of the power supply wires in the lamp chamber respectively connected to sockets of the plurality of light sources via the light source connectors are provided at predetermined positions of the lamp body. 2. The vehicular lamp according to claim 1, wherein the vehicular lamp is connected to a power supply line outside the lamp room via an aggregation connector.   A bayonet engaging means for retaining and holding the socket of the light source is interposed between the socket outer periphery of the light source and the opening, and the opening is sealed and the bayonet engaging means of the bayonet engaging means. The vehicular lamp according to claim 1 or 2, wherein an O-ring for holding the joint portion in a pressure contact state is loaded.   The said light source connector can be inserted / removed along the extension direction of the said socket, The lighting device for vehicles in any one of Claims 1-3 characterized by the above-mentioned.   The vehicular lamp according to claim 1, wherein the light source connector can be inserted and removed in a direction substantially orthogonal to the extending direction of the socket.

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