JP5312543B2 - Vehicle lighting - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular lamp, capable of reducing parts cost and reducing a workload in fixing a terminal plate to a base housing. <P>SOLUTION: A side turn lamp 1 (vehicular lamp) includes the base housing 10, a flexible base plate 20 (base plate) having a terminal plate 27 to pass current to LEDs 22 to 24 (illuminator), and a reflector 30 having openings 32a, 32b (translucent window) to transmit light of the LEDs 22 to 24. A mounting section 12 is formed in the base housing 10 to mount the terminal plate 27. Projecting sections 31b, 31c are formed in the reflector 30 projecting toward the base housing 10 side. The terminal plate 27 is inserted, fixed and positioned between the mounting section 12 of the base housing 10 and the projecting sections 31b, 31c of the reflector 30 in such a state that the reflector 30 is held in the base housing 10. <P>COPYRIGHT: (C)2013,JPO&amp;INPIT

Description

  The present invention relates to a vehicular lamp, for example, a vehicular lamp suitable for a side turn lamp attached to a door mirror device of an automobile.

  In recent years, when a vehicle turns right or left or changes its course on door mirror devices provided on both sides of the vehicle in order to make other traffic objects (vehicles or pedestrians) visually recognize that the vehicle turns right or left or changes its course. A device incorporating a side turn lamp that blinks is widely known (for example, see Patent Document 1 below).

  The side turn lamp includes a base housing that is a base for mounting the mirror main body to a housing (vehicle), a plurality of LEDs (light emitters), a wiring section for driving the circuit, and a circuit section. It is configured to include a flexible substrate (substrate) that is mounted and has a lead wire for energizing each LED at the end. The lead wires are bundled by a connector, and the flexible substrate is fixed to the base housing via the connector. Alternatively, for example, as shown in FIG. 10, a screw hole 101 a through which the attachment screw 102 is inserted is formed in the terminal plate 101, a screw hole portion 103 a for attaching the attachment screw 102 is formed in the base housing 103, and the attachment screw 102 is The terminal plate 101 is fixed to the base housing 103 and positioned by screwing with the screw hole portion 103a of the base housing 103 in a state where the screw hole 101a of the terminal plate 101 is inserted. Further, a locking projection is formed on the base housing, a locked hole for inserting the locking projection is formed on the terminal plate, and the locking projection of the base housing is engaged with the locked hole of the terminal plate inserted. It is also conceivable to fix the terminal plate to the base housing by welding the tip of the stop projection using a special welding machine.

JP 2010-285025 A

  However, using a mounting screw as a part or using a special welding machine to weld a part of the base housing increases the manufacturing cost, and there is a dedicated work process for fixing the terminal plate to the base housing. Since this is necessary, there is a problem that the work load increases.

  The present invention has been made to cope with the above-described problems, and an object of the present invention is to reduce the cost of parts and reduce the work load when the terminal plate is fixed to the base housing. It is to provide a lamp.

Means for Solving the Problems and Effects of the Invention

In order to achieve the above object, the vehicular lamp of the present invention includes:
A base housing as a base for mounting on the vehicle;
A substrate mounted on the base housing, mounted with a plurality of light emitters, wiring portions and circuit portions for driving the same, and provided with a metal plate-like terminal plate for energizing the light emitters at the ends,
A reflector that is held by the base housing so as to cover the substrate from the outside and has a light-transmitting window that transmits the light of the light emitter;
A lens cover disposed on the base housing, covering the reflector from the outside and diffusing the light of the illuminant that has passed through the transparent window and projecting the light outward.
The base housing is formed with a mounting portion for mounting the terminal plate, and the reflector is formed with a protruding portion that protrudes toward the base housing, and the reflector is held by the base housing, A terminal plate is sandwiched and fixed between the projecting portion of the reflector, and is positioned.

  In the vehicular lamp of the present invention, the terminal plate is sandwiched and fixed and positioned between the mounting portion of the base housing and the protruding portion of the reflector while the reflector is held by the base housing. That is, the terminal plate is fixed by the mounting portion of the base housing and the protruding portion of the reflector almost simultaneously with the assembly of the reflector to the base housing.

  This eliminates the need for a dedicated work process for fixing the terminal plate to the base housing, thereby reducing the work load. Further, it is not necessary to use a mounting screw as a part for fixing the terminal plate to the base housing or a special welding machine, and the manufacturing cost can be reduced.

  Further, in the vehicular lamp of the present invention, the mounting portion of the base housing is formed with a locking projection that protrudes toward the reflector, and the terminal plate is formed with a locked hole through which the locking projection is inserted. The terminal plate can be positioned with respect to the base housing by inserting the locking protrusion of the housing through the locked hole of the terminal plate. Alternatively, a locking projection that protrudes toward the reflector is formed on the mounting portion of the base housing, and a locked recess that engages with the locking projection is formed on the terminal plate. The terminal plate can also be configured to be positioned with respect to the base housing by engaging the locked recess of the plate.

  According to this, the locking projection of the base housing passes through the locking hole of the terminal plate, or the locking projection of the base housing engages the locking recess of the terminal plate, so that the terminal plate is Is positioned with respect to. For this reason, positioning of the terminal plate with respect to the base housing can be realized by a simple shape improvement in the base housing and the terminal plate.

  In the vehicular lamp according to the present invention, the protruding portion of the reflector is formed in a stepped column shape having a small-diameter portion at the front end side, and the locked portion to be engaged with the small-diameter portion of the protruding portion on the mounting portion of the base housing The terminal plate is formed with a locked hole through which the small diameter portion of the protruding portion is inserted, the small diameter portion of the protruding portion is inserted through the locked hole of the terminal plate, and the locked portion of the base housing The terminal plate is positioned with respect to the base housing by engaging with the recess, and the terminal plate is sandwiched and fixed between the stepped portion of the protruding portion and the mounting portion of the base housing. You can also.

  According to this, the terminal plate is positioned with respect to the base housing by the small-diameter portion of the protruding portion of the reflector being inserted through the locked hole of the terminal plate and further engaging with the locked recess of the base housing. . On the other hand, the terminal plate is sandwiched and fixed between the stepped portion of the protruding portion and the mounting portion of the base housing. For this reason, the positioning function and the fixing function of the terminal plate can be integrated into the projecting portion of the reflector, and the dimensional management can be facilitated.

The front view of a mirror main-body part (for right side front doors). The perspective view which shows the state which attached the side turn lamp to the housing of the mirror main-body part. The perspective view of the side turn lamp shown in FIG. FIG. 4 is an exploded perspective view of the side turn lamp shown in FIG. 3. FIG. 6A is a plan view illustrating a state in which a lens cover, a reflector, and the like are removed from a side turn lamp according to the first embodiment of the present invention. (B) is a principal part enlarged view of (A). XX sectional drawing of FIG. 5 (A). (A) is explanatory drawing which shows the positional relationship of a terminal board and the protrusion part of a reflector. (B), (C) is explanatory drawing which shows the modification of (A). (A) is an enlarged view of a terminal board according to a modification of the first embodiment. (B) is a YY sectional view of (A). Sectional drawing which concerns on Example 2 of this invention and corresponds to FIG. Sectional drawing which shows an example of the attachment structure of the terminal board in a prior art.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 and 2 show a vehicle door mirror device 2 to which a vehicle lamp of the present invention is applied. The door mirror device 2 is attached to both front doors of the automobile 50, and includes a mirror base portion 3 serving as a portion attached to the front door, and a mirror main body portion 4 supported by the mirror base portion 3. ing.

  The mirror body 4 includes a mirror (not shown) for the driver or passenger to check the rear, a mirror holder (not shown) for holding the mirror, and an actuator (not shown) for adjusting the angle of the mirror. ), A side turn lamp 1 (corresponding to the vehicular lamp of the present invention) serving as a direction indicator, etc., a housing 5 and a lid 6 for housing them, and a role of a frame to which the actuator is attached. An attachment base (not shown) that serves to connect the mirror, the actuator, and the side turn lamp 1 to the housing 5 and a mirror main body attached to one end of the attachment base. 2 includes an electric storage device (not shown) that rotationally drives the mirror 2 toward the use position or the storage position with respect to the mirror base 3.

  The entire lid portion 6 has a vessel shape (conical vessel shape), is formed of, for example, a plastic material, and is formed with a window portion 6a (lamp attachment portion) cut out in a groove shape from one end side. ing. The side turn lamp 1 is mounted on the housing 5 so as to be exposed to the outside corresponding to the window 6a.

  As shown in FIGS. 4 and 5, the side turn lamp 1 includes a base housing 10 that is a base for attachment to the housing 5, a thin strip-like flexible substrate 20 that is attached to the base housing 10, and a shape that covers the flexible substrate 20. A reflector 30 that houses the flexible substrate 20 and a lens cover 40 that covers the reflector 30 are provided.

  First, the flexible substrate 20 will be described. The flexible substrate 20 includes a substrate body 21 that can be bent and deformed, and LEDs 22, 23, and 24 as light emitters, a wiring unit 25 for driving the circuit unit, and a circuit unit 26 are mounted on one surface thereof. The part is provided with a pair of metal plate-like terminal plates 27, 27 for energizing the LEDs 22-24.

  The substrate main body 21 is made of a copper-clad plate having excellent flexibility using, for example, polyimide or polyester as a base film. Each of the LEDs 22 to 24 (light emitting body) is a surface-mounted LED, and as shown in FIG. 4, the LED 22 is mounted in a portion close to the end on the side of each terminal plate 27, while the LEDs 23 and 24 are each terminal plate. 27 is mounted in the vicinity of the end on the opposite side. Each terminal plate 27 is formed with a locked hole 27a penetrating the front and back, and a plate-like protrusion 27b protruding outward from the tip of each terminal plate 27 so as to have the same surface as the plate surface. Has been.

  The back plate 28 is fixed to the other surface (the surface on which the LEDs 22 to 24 are not mounted) of the substrate body 21 corresponding to the LED 22, and the back plate 29 is fixed to correspond to the LEDs 23 and 24. Yes. The flexible substrate 20 is attached to the base housing 10 in a predetermined posture forced through the back plates 28 and 29.

  Next, the base housing 10 will be described. As shown in FIGS. 4 and 5, the base housing 10 has a shape curved in the longitudinal direction following the shape of the housing 5 (see FIG. 2). For example, the base housing 10 is formed of a thermoplastic resin such as ABS resin or ASA resin. Has been. The base housing 10 is formed with a storage recess 11 for storing the flexible substrate 20 over substantially the entire area thereof.

  In the storage recess 11, a mounting portion 12 constituted by a flat bottom surface and swash plate-like support portions 13 and 14 extending obliquely upward with respect to the bottom surface are respectively predetermined in the longitudinal direction of the base housing 10. Are arranged at intervals. The mounting portion 12 is formed with a pair of locking protrusions 12a and 12a that protrude in a direction orthogonal to (intersect) the bottom surface. Further, in the vicinity of the support portions 13 and 14, attachment portions 15 and 16 are disposed at a predetermined distance, respectively.

  As shown in FIG. 5 and FIG. 6, a stepped portion 17 formed in a step shape is disposed at a portion of the mounting portion 12 on the longitudinal direction side of the base housing 10. An insertion port 17 a is formed through the front and back of the base housing 10 to guide the protrusion 27 b of each terminal plate 27 to the connector mounting portion 18 on the back surface side of the housing recess 11.

  With such a configuration, the terminal plate 27 of the flexible substrate 20 is placed on the placement unit 12 in a state where surface contact is possible. In this case, each locking projection 12a of the mounting portion 12 is inserted through the locked hole 27a, so that the linear movement of each terminal plate 27 along the plate surface of the mounting portion 12 is restricted. Further, the back plate 28 of the flexible substrate 20 is inserted between the support portion 13 and the attachment portion 15, and the back plate 29 is inserted between the support portion 14 and the attachment portion 16, whereby the substrate body of the flexible substrate 20. 21 is held so as not to be displaced with respect to the base housing 10. Then, by connecting the protrusions 27 b of each terminal plate 27 inserted through the insertion port 17 a of the stepped portion 17 to the external connector 7 by the connector mounting portion 18, the LEDs 22 to 24 of the flexible substrate 20 can be energized.

  As described above, each terminal plate 27 is formed with a plate-like protrusion 27b that protrudes outward from the tip so as to have the same surface as the plate surface, and is stepped adjacent to the mounting portion 12. A protruding stepped portion 17 is disposed, and the stepped portion 17 penetrates through the front and back of the base housing 10, and the projection 27 b of each terminal plate 27 is connected to the connector mounting portion 18 on the back side of the housing recess 11 (base housing 10). An insertion port 17a for guiding is formed, and when a force is applied to rotate the corresponding terminal plate 27 with each locking projection 12a as a rotation center, the projection 27b of each terminal plate 27 is formed on the stepped portion 17. By making contact with the side wall portion forming the insertion opening 17a, the rotational movement of each terminal plate 27 around the locking projection 12a is regulated.

  In addition, on the inner wall portion of the housing recess 11 in the base housing 10, a locked recess 11 a that engages with each locking claw 31 a of a reflector 30 described later is provided (see FIG. 4). Furthermore, a bracket 10a having a hole for passing a screw (not shown) for screwing the base housing 10 to the housing 5 is provided on the outer wall portion of the base housing 10 (see FIGS. 3 and 4). .

  Next, the reflector 30 will be described. As shown in FIG. 4, the reflector 30 is formed in a shape curved in the longitudinal direction corresponding to the curved shape of the base housing 10, and has a lower portion 31 having a substantially U-shaped cross section, and an upper side of the lower portion 31. And an upper portion 32 formed to project in a stepped manner in the longitudinal direction. The reflector 30 can be formed of metal, resin, ceramic, etc., taking into consideration decorativeness, for example, a resin material subjected to vapor deposition, gloss coating or plating, or a metal material such as aluminum having a mirror finish Can be formed.

  Opening portions 32a and 32b (translucent windows) for exposing them to the outside are provided at portions of the upper portion 32 of the reflector 30 facing the LEDs 22 and 23 (24) of the flexible substrate 20.

  A plurality of locking claws 31a that can be elastically deformed are provided on both wall portions of the lower portion 31 of the reflector 30 (in the first embodiment, two locking claws 31a are provided on one wall portion, and the other An example is shown in which one locking claw 31a (not shown in the figure) is provided on the wall portion. The reflector 30 is held by the base housing 10 when the locking claw 31a is engaged with the locked recess 11a of the corresponding base housing 10.

  Further, as shown in FIG. 6, projecting portions 31 b and 31 c projecting toward the base housing 10 are juxtaposed at a portion of the lower portion 31 of the reflector 30 that faces the mounting portion 12 of the base housing 10. Specifically, as shown in FIG. 7A, the projecting portions 31b and 31c are arranged to face each other so as to be parallel to each other with the locking projections 12a of the base housing 10 interposed therebetween, and the projecting portions 31b are both arranged. The projecting length is such that the distal end side (protrusions 27b and 27b side) of the terminal plates 27 and 27 and the projecting portion 31c can press the proximal end side (substrate body 21 side) of both terminal plates 27 and 27, respectively. Is formed.

  In addition, the protrusions 31b and 31c are not limited to being formed in the form of FIG. 7A, and for example, as illustrated in FIG. 7B, the protrusions 31b and 31c are provided for each terminal plate 27, Alternatively, as shown in FIG. 7 (C), it may be formed as a hollow angular protrusion 31d surrounding the locking protrusions 12a, 12a of the base housing 10.

  The reflector 30 is attached to the base housing 10 so as to cover the storage recess 11 to which the flexible substrate 20 is attached. In this case, the locking claw 31 a of the reflector 30 that is elastically deformed by contacting the inner wall portion of the housing recess 11 of the base housing 10 is elastically restored by engaging with the corresponding locking recess 11 a of the base housing 10.

  That is, in the state where each terminal plate 27 is sandwiched and fixed between the mounting portion 12 of the base housing 10 and the protruding portions 31b and 31c of the reflector 30, the locking claws 31a of the reflector 30 correspond to each other. The lengths of the protrusions 31b and 31c and the arrangement of the locking claws 31a and the locking recesses 11a are set so as to engage with the locking recesses 11a of the base housing 10.

  In this state, the LED 22 attached to the flexible substrate 20 is disposed in the opening 32 a portion of the reflector 30, and the LEDs 23 and 24 are disposed in the opening 32 b portion of the reflector 30. Thereby, the light irradiated from each LED22-24 is irradiated outside through corresponding opening part 32a, 32b.

  Next, returning to FIG. 4, the lens cover 40 will be described. The lens cover 40 is disposed on the reflector 30, and similarly to the reflector 30, the lens cover 40 is formed in a shape curved in the longitudinal direction corresponding to the curved shape of the base housing 10, and a lower portion having a substantially U-shaped cross section. 41 and an upper part 42 formed so as to protrude stepwise in the longitudinal direction above the lower part 41. The lens cover 40 is formed of a transparent or translucent thermoplastic resin such as polymethyl methacrylate (PMMA), polycarbonate (PC), polypropylene (PP), or ABS resin.

  A lens cut portion 42 a having a large number of saw blade-like protrusions is provided on the back side of the upper portion 42 of the lens cover 40. The light emitted from the LEDs 22 to 24 is refracted by the lens cut portion 42 a of the lens cover 40, becomes diffused light, and is projected to the outside of the lens cover 40. The lens cover 40 covers the openings 32 a and 32 b of the reflector 30 to protect the exposed LEDs 22 to 24 and improve the decorativeness of the side turn lamp 1.

  As is clear from the above description, in the side turn lamp 1 of the first embodiment, the mounting portion 12 of the base housing 10 is formed with a pair of locking projections 12a and 12a that protrude toward the reflector 30 side, and the flexible substrate A pair of 20 terminal plates 27 and 27 are formed with locked holes 27a and 27a through which the locking protrusions 12a and 12a of the mounting portion 12 are inserted, respectively. Each terminal plate 27 is positioned with respect to the base housing 30 by passing through the locked holes 27 a of the terminal plate 27.

  Each terminal plate 27 is positioned with respect to the base housing 30, and the reflector 30 is held by the base housing 10, so that the terminal plate 27 is positioned between the mounting portion 12 of the base housing 10 and the protruding portions 31 b and 31 c of the reflector 30. Each terminal plate 27 is sandwiched and fixed. That is, the terminal plates 27 of the flexible substrate 20 are fixed by the mounting portion 12 of the base housing 10 and the protruding portions 31 b and 31 c of the reflector 30 almost simultaneously with the assembly of the reflector 30 to the base housing 10.

  This eliminates the need for a dedicated work process for fixing each terminal plate 27 to the base housing 10, thereby reducing the work load. Further, it is not necessary to use a mounting screw as a part for fixing each terminal plate 27 to the base housing 10 or a special welding machine, and the manufacturing cost can be reduced.

(Modification)
In the first embodiment, each terminal plate 27 is positioned with respect to the base housing 30 by each locking projection 12 a in the mounting portion 12 of the base housing 10 passing through the locked hole 27 a of each terminal plate 27. Instead of this, instead of this, for example, as shown in FIG. 8, each terminal plate 27 is formed with a locked recess 27c that engages with each locking projection 12b in the mounting portion 12 of the base housing 10, Each terminal plate 27 may be positioned with respect to the base housing 10 by engaging each locking projection 12 b of the base housing 10 with a locked recess 27 c of each terminal plate 27.

  Also according to this modification, the positioning of each terminal plate 27 with respect to the base housing 10 can be realized by simple shape improvements in the base housing 10 and each terminal plate 27.

  In the first embodiment, each terminal plate 27 is positioned with respect to the base housing 10 by each locking projection 12a of the base housing 10 and the locked hole 27a of each terminal plate 27, and the mounting portion 12 of the base housing 10 Each terminal plate 27 is configured to be fixed to the base housing 10 by the protrusions 31b and 31c of the reflector 30, that is, a function for positioning each terminal plate 27 and a function for fixing the terminal plate 27 are configured separately. Instead of this, for example, a configuration as shown in FIG. 9 may be adopted. In the following description, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the second embodiment, the pair of projecting portions 31e and 31e of the reflector 30 are formed in a stepped column shape in which the tip side is a small-diameter portion 31f, and the mounting portion 12 of the base housing 10 has a small diameter of each projecting portion 31e. Locked recesses 12c that engage with the portions 31f are formed. Locked holes 27a through which the small-diameter portions 31f of the protruding portions 31e are inserted are formed in the terminal plates 27, and the small-diameter portions of the protruding portions 31e. 31f passes through the locking holes 27a of the terminal plates 27 and engages with the locking recesses 12c of the base housing 10, whereby each terminal plate 27 is positioned with respect to the base housing 10, and each Each terminal plate 27 is sandwiched and fixed between the step portion 31g of the protruding portion 31e and the mounting portion 12 of the base housing 10.

  According to the second embodiment, the small-diameter portion 31f of each protrusion 31e of the reflector 30 passes through the locked hole 27a of each terminal plate 27 and further engages with each locked recess 12c of the base housing 10. Thus, each terminal plate 27 is positioned with respect to the base housing 10. On the other hand, each terminal plate 27 is sandwiched and fixed between the step portion 31g of each protrusion 31e and the placement portion 12 of the base housing 10. Thereby, the positioning function and the fixing function of each terminal plate 27 can be integrated into each projecting portion 31e of the reflector 30, and the dimensional management can be facilitated.

  In the first and second embodiments, the case where the vehicular lamp of the present invention is applied to the side turn lamp 1 attached to the door mirror device 2 of the automobile 50 has been described. However, the present invention is not limited thereto. Instead, it can be implemented by appropriately changing to various types of vehicle lamps.

1 Side turn lamp (vehicle lamp)
2 Door mirror device 4 Mirror body portion 5 Housing 6 Lid portion 6a Window portion 7 External connector 10 Base housing 11 Storage recess 11a Locked recess 12 Mounting portion 12a, 12b Locking protrusion 12c Locked recess 17 Stepped portion 17a Insertion port 18 Connector mounting portion 20 Flexible substrate 21 Board main bodies 22 to 24 LED (light emitting body)
25 Wiring portion 26 Circuit portion 27 Terminal plate 27a Locked hole 27b Projection 27c Locked recess 28, 29 Back plate 30 Reflector 31 Lower portion 31a Locking claw 31b, 31c, 31d, 31e Projection portion 31f Small diameter portion 31g Step portion 32 Upper part 32a, 32b Opening (translucent window)
40 lens cover 41 lower part 42 upper part 50 automobile (vehicle)

Claims (4)

A base housing as a base for mounting on the vehicle;
A substrate mounted on the base housing, mounted with a plurality of light emitters, wiring portions and circuit portions for driving the same, and provided with a metal plate-like terminal plate for energizing the light emitters at the ends,
A reflector held on the base housing so as to cover the substrate from the outside and having a light-transmitting window that transmits the light of the light emitter;
A lens cover that is disposed on the base housing so as to cover the reflector from the outside and diffuse the light of the illuminant that has passed through the light transmitting window and project the light outward.
The base housing is formed with a mounting portion for mounting the terminal plate, the reflector is formed with a protruding portion protruding toward the base housing, and the reflector is held by the base housing. A vehicular lamp, wherein the terminal plate is sandwiched and fixed and positioned between a mounting portion of a base housing and a protruding portion of the reflector.   The mounting portion of the base housing is formed with a locking projection that protrudes toward the reflector, and the terminal plate is formed with a locking hole through which the locking projection is inserted. The vehicular lamp according to claim 1, wherein the terminal plate is positioned with respect to the base housing by inserting the locked hole of the terminal plate.   The mounting portion of the base housing is formed with a locking projection that protrudes toward the reflector, and the terminal plate is formed with a locking recess that engages with the locking projection. The vehicle lamp according to claim 1, wherein the terminal plate is positioned with respect to the base housing by engaging with a locked recess of the terminal plate.   The projecting portion of the reflector is formed in a stepped column shape having a small-diameter portion on the tip side, and a locked recess that engages with the small-diameter portion of the projecting portion is formed on the mounting portion of the base housing, and the terminal plate A locking hole through which the small-diameter portion of the protruding portion is inserted, the small-diameter portion of the protruding portion is inserted through the locking hole of the terminal plate, and the locking recess of the base housing The terminal plate is positioned with respect to the base housing by being engaged, and the terminal plate is sandwiched and fixed between the stepped portion of the protruding portion and the mounting portion of the base housing. The vehicular lamp according to 1.

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