JP5464828B2 - Vehicle lighting - Google Patents

Description

  The present invention includes a light source in a lamp chamber formed by a housing that forms a lamp body that is open at the front, and a front cover that is attached to the front opening, and a vehicle body mounting piece that is formed in the housing The present invention relates to a vehicular lamp attached to a vehicle body.

In recent years, the number of parts mounted on the housing of a vehicular lamp has increased, the housing has become larger, and the weight of the housing has increased. In view of such a background, a plurality of vertical ribs or reinforcing ribs are provided to ensure the strength of the vehicular lamp.
As an example of a conventional vehicular lamp, a mounting structure for an automotive lamp in which a plurality of edge ribs, vertical ribs, and horizontal ribs are provided on the mounting portion is known (for example, see Patent Document 1).

Further, as another example of a conventional vehicle lamp, a vehicle lamp mounting structure in which a plurality of reinforcing ribs are provided on a bracket to increase rigidity is known (for example, see Patent Document 2).
Furthermore, as another example of a conventional vehicular lamp, a vehicular lamp having a thin bent portion in which unevenness is alternately formed on a part of a lamp body is known (for example, see Patent Document 3).

Japanese Utility Model Publication No. 06-75885 JP 2006-27488 A Japanese Patent Laid-Open No. 11-283402

  However, in the vehicular lamp disclosed in Patent Document 1 and Patent Document 2, the shape is complicated by a plurality of vertical ribs and reinforcing ribs, and the moldability is not good. That is, since it is difficult to pass the cooling pipe of the mold near the vertical rib, the cooling characteristic of the mold is deteriorated. Therefore, there is a problem that the quality of the molded product is deteriorated.

  In addition, the vehicle lamp disclosed in Patent Document 3 cannot be said to have good moldability like Patent Document 1 and Patent Document 2. In addition, since the bent portion is thin, it is difficult to form the portion where rigidity is required.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a vehicular lamp that can improve the moldability of the housing and obtain the necessary rigidity. .

The object according to the present invention is a vehicular lamp provided with a light source in a lamp chamber formed by a housing having a front opening and a front cover attached to the front opening.
The housing includes a housing body composed of a rear wall having a plurality of component mounting portions, a peripheral wall erected on a peripheral end portion of the rear wall, and a vehicle body mounting piece for mounting the housing body to the vehicle body, This is achieved by a vehicular lamp characterized in that a corrugated portion is provided in a portion requiring rigidity of at least one of the peripheral wall, the back wall, and the vehicle body attachment piece.
In addition, a waveform part means that the recessed part and the convex part have a curved surface and were continuously formed in the single cross section.

  According to the vehicular lamp having such a configuration, the number of ribs can be reduced by replacing part of the ribs provided in the portion requiring rigidity with the corrugated portion. As a result, the shape is not complicated as in the prior art, the rigidity can be secured and the structure can be simplified, and the moldability can be improved.

Further, by replacing a part of the rib with the corrugated portion, the surface area of the housing, which causes the moisture in the housing to evaporate due to the heat of the light source and cause fogging, can be reduced. Thereby, the inside of a housing can be made hard to be cloudy.
In addition, by reducing the ribs, the weight can be reduced, and the resin material can easily flow to reduce the thickness. Furthermore, since the electric discharge machining cost etc. at the time of metal mold | die manufacture can be reduced, cost reduction can be aimed at.

  Further, the vehicle lamp according to the present invention is the vehicle lamp described above, wherein the corrugated portion of the vehicle body attachment piece intersects an imaginary line from the vehicle body attachment portion of the vehicle body attachment piece toward the housing body. It is desirable that it be formed continuously in the direction of the movement.

According to the vehicular lamp having such a configuration, the concave portion or the convex portion forming the corrugated portion of the vehicle body mounting piece is formed along the imaginary line, and sufficient rigidity can be ensured.
Further, the vehicle body attachment piece for attaching the housing body to the vehicle body can reduce the number of ribs by the corrugated portion having rigidity, so that further weight reduction can be achieved.

  In the vehicular lamp according to the present invention, it is preferable that the corrugated portion of the back wall is formed in the vicinity of a component mounting portion of the housing body in the vehicular lamp described above.

  According to the vehicular lamp having such a configuration, the load on the housing is supported with high rigidity by the various parts equipped on the housing body while reducing the weight by the corrugated portion provided on the back wall of the housing body. Therefore, deformation of the housing can be prevented.

  In the vehicular lamp according to the present invention, it is preferable that a plurality of standing ribs be formed so that the corrugated portion surrounds the periphery of the vehicular lamp.

  According to the vehicular lamp configured as described above, the rigidity and strength can be further increased by adding the standing rib around the corrugated portion.

  According to the vehicular lamp according to the present invention, the moldability of the housing can be improved and the necessary rigidity can be obtained.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1 is an external perspective view of a vehicular lamp according to an embodiment of the present invention, FIG. 2 is a front view of the vehicular lamp of FIG. 1, FIG. 3 is a rear view of the vehicular lamp of FIG. Is a partial sectional view taken along line AA in FIG. 3, FIG. 4B is a sectional view taken along line BB in FIG. 3, and FIG. 4C is a partial sectional view taken along line CC in FIG. It is. Note that the front, rear, left and right in the description follow the direction of the vehicle, and the + Z direction in FIG. 1 is the front of the vehicle.

As shown in FIG. 1, a vehicular lamp 10 according to an embodiment of the present invention includes a resin housing 11 that forms a lamp body that is fixed to the vehicle body side in a shape with an opening on the front side, and a front side of the housing 11. And a transparent resin front cover 12 attached from the opening. The headlight unit includes a single light source 14 and a hemispherical reflector 15 assembled around the light source 14 in a lamp chamber 13 defined by the housing 11 and the front cover 12. An extension 16 is assembled on the outside of the reflector 15.
Note that a projector-type (PES) lamp unit in which a projection lens, a shade, and the like are arranged in front of the light source 14 may be used.

The housing 11 is integrally formed in a substantially box shape using a hard synthetic resin material so as to correspond to the shape of the vehicle body mounting portion. The housing 11 includes a housing main body 17 having a rear wall (see FIG. 3) 19 having a plurality of component mounting portions and a peripheral plate 18 forming a peripheral wall, and four vehicle bodies projecting outward from the housing main body 17. Mounting pieces 20-23.
The vehicle body mounting pieces 20 to 23 may be provided separately from the housing main body 17 and fixed to a predetermined position of the housing main body 17 by a fastening member such as a bolt.
Examples of the synthetic resin material for the housing 11 include polypropylene (PP), acrylonitrile butadiene styrene copolymer (ABS), acrylonitrile styrene copolymer (ASA, weather resistant ABS), polycarbonate (PC), and polycarbonate ABS (PC- ABS) resin and the like are preferably used.

  The light source 14 is a bulb such as an incandescent bulb or a discharge lamp that is used as both a high beam and a low beam. The light source 14 is attached to a socket 24 (see FIG. 3) provided on the back wall 19 of the housing body 17. The light source 14 may be a semiconductor light emitting element such as an LED. The reflector 15 is a reflecting member having a hemispherical reflecting surface formed inside. A plurality of ridges 25 are formed radially to form a predetermined light distribution pattern around the light source 14 on the reflecting surface.

The first vehicle body mounting piece 20 extends obliquely in the −Z direction in FIG. 1 with the central portion of the upper surface of the peripheral plate 18 of the housing body 17 as a base. A vehicle body abutment portion 27, which is a vehicle body attachment portion having a vertical screw hole 26, is formed at the distal end portion of the first vehicle body attachment piece 20.
Further, the second vehicle body attachment piece 21 extends in an L shape in the −Z direction in FIG. 1 with the upper right portion of the upper surface of the peripheral plate 18 of the housing body 17 as a base. A vehicle body contact portion 29 having a vertical screw hole 28 is formed at the distal end portion of the second vehicle body attachment piece 21.

The third vehicle body mounting piece 22 extends obliquely in the intermediate direction between -X and -Y in FIG. 1 with the left side of the lower surface of the peripheral plate 18 of the housing body 17 as a base. An auxiliary piece 30 is integrally connected to the third vehicle body mounting piece 22 from the lower left portion of the peripheral plate 18 of the housing body 17. A vehicle body abutting portion 32 having a lateral screw hole 31 is formed at the tip of the third vehicle body mounting piece 22.
Further, the fourth vehicle body attachment piece 23 extends in an L shape toward the −Y direction in FIG. 1 with the right side of the lower surface of the peripheral plate 18 of the housing body 17 as a base. A vehicle body contact portion 34 having a lateral screw hole 33 is formed at the tip of the fourth vehicle body attachment piece 23.

As shown in FIG. 2, four rows of standing ribs 35 are formed in parallel on the front surface side of the first vehicle body attachment piece 20 from the base portion toward the vehicle body contact portion 27. The number of the standing ribs 35 is set smaller than that of the conventional structure.
As shown in FIG. 3, four standing ribs 36 intersecting in a lattice shape are formed on the back side of the first vehicle body mounting piece 20. The number of the standing ribs 36 is set smaller than that of the conventional structure.

  The first vehicle body mounting piece 20 is continuously formed with a concave portion and a convex portion having a curved surface on an intermediate plate 37 between the standing rib 35 on the front side and the standing rib 36 on the back side. A first corrugated portion 38 is formed. The first corrugated portion 38 is surrounded by the standing rib 36 and intersects the imaginary line from the vehicle body contact portion 27 toward the peripheral plate 18 of the housing body 17 (in FIG. ) Is formed continuously.

  As shown in FIGS. 3 and 4A, the first corrugated portion 38 of the first vehicle body mounting piece 20 is formed in the middle plate 37 between the standing ribs 36 on the back side. In the first corrugated portion 38, a concave portion 52 and a convex portion 53 are continuously formed through a curved surface 54. And the recessed part 52 and the convex part 53 are set to the unequal pitch with a different curvature.

As shown in FIG. 3, two standing ribs 39 are formed on both sides of the third vehicle body attachment piece 22 from the base portion toward the vehicle body contact portion 32.
In the third vehicle body mounting piece 22, a second corrugated portion 40 is formed between the standing ribs 39. The second corrugated portion 40 is continuously formed in a direction intersecting with an imaginary line from the vehicle body abutting portion 32 toward the peripheral plate 18 of the housing body 11.

As shown in FIG. 3 and FIG. 4B, the second corrugated portion 40 of the third vehicle body mounting piece 22 has a concave portion 50 and a convex portion 49 through a curved surface 51 between the standing ribs 39, 39. It is formed continuously. The concave portion 50 and the convex portion 49 are set to have the same curvature.
Also, two standing ribs 41 are formed on the back side of the fourth vehicle body attachment piece 23 from the base portion toward the vehicle body contact portion 34.

  On the other hand, the rear wall 19 of the housing body 17 is provided with a socket 24 at the center thereof. A reflector leveling actuator 42 is assembled to the side of the socket 24. In addition, a lighting control circuit (not shown), a leveling control circuit, an aiming mechanism, and the like are assembled on the back wall 19.

A third corrugated portion 43 is formed on the back wall 19 of the housing body 17 outside the socket 24. The third corrugated portion 43 is formed in an arc shape around the socket 24 at the bottom of the socket 24.
A fourth waveform portion 44 is also formed below the actuator 42. The fourth waveform portion 44 is formed in an arc shape with the drive shaft 45 of the actuator 42 as the center.

As shown in FIG. 3 and FIG. 4C, the third corrugated portion 43 and the fourth corrugated portion 44 of the back wall 19 of the housing body 17 have a concave portion 46 and a convex portion 47 continuous via a curved surface 48. Is formed. The concave portion 46 and the convex portion 47 are set to have the same curvature.
The corrugated portion described above may be provided in a portion that requires the rigidity of the peripheral plate 18 in addition to the back wall 19 of the housing body 17.

  Such a vehicular lamp 10 is incorporated in a headlight opening portion (not shown) formed in the front portion of the vehicle body. Then, the first vehicle body mounting piece 20 and the second vehicle body mounting piece 21 insert bolts (not shown) into the screw holes 26 and 28 of the vehicle body abutting portions 27 and 29, and the vehicle body panel side (not shown). Screw into the embedded nut. Thereby, the upper part of the vehicle lamp 10 is fixed to the vehicle body panel.

  Further, the third vehicle body attachment piece 22 and the fourth vehicle body attachment piece 23 insert bolts (not shown) into the screw holes 31 and 33 of the vehicle body abutting portions 32 and 34, thereby embedding the vehicle body panel side (not shown). Screw into the nut. Thereby, the lower part of the vehicle lamp 10 is fixed to the vehicle body panel.

  In the vehicle lamp 10 attached to the vehicle body panel, the rigidity of the first vehicle body attachment piece 20 on the upper side is set lower than that of the third vehicle body attachment piece 22, for example. Thereby, the impact at the time of a collision can be absorbed and damage to the housing body 17 can be minimized.

  As described above, according to the vehicular lamp 10 of the embodiment of the present invention, the number of the standing ribs 35, 36, 39 is reduced by the first corrugated portion 38 and the second corrugated portion 40 having rigidity. Even if it makes it, it can ensure required rigidity. Thereby, the shape is not complicated, and the moldability can be improved.

Further, the surface area of the housing 11 can be reduced by reducing the number of the standing ribs 35, 36, 39 by the corrugated portions 38, 40, 43, 44. Thereby, the inside of a housing can be made hard to be cloudy.
In addition, the reduction of the standing ribs 35, 36, and 39 can reduce the weight, and the resin material can easily flow to reduce the thickness. Furthermore, since the mold structure can be simplified, the electric discharge machining cost and the like can be reduced, so that the cost can be reduced.

  In addition, the third corrugated portion 43 and the fourth corrugated portion 44 can support the load related to the housing 11 with high rigidity by a heavy component such as the actuator 42 provided in the housing body 17 while reducing the weight. As a result, deformation of the housing 11 can be prevented.

In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.
For example, the position of the vehicle body mounting piece is not limited to the illustrated one, and can be set as appropriate in consideration of the design of the vehicle.

  Needless to say, the vehicular lamp can be applied to a rear combination lamp or the like instead of the headlight unit.

1 is an external perspective view of a vehicular lamp according to an embodiment of the present invention. It is a front view of the vehicle lamp of FIG. It is a rear view of the vehicle lamp of FIG. (A) The figure is a fragmentary sectional view along the AA line of FIG. 3, (b) The figure is the BB sectional drawing of FIG. 3, (c) The figure is the CC line of FIG. It is a fragmentary sectional view in alignment with.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle lamp 11 Housing 12 Front cover 13 Lamp chamber 14 Light source 17 Housing main body 18 Perimeter plate (peripheral wall)
19 rear wall 20 first vehicle body mounting piece 21 second vehicle body mounting piece 22 third vehicle body mounting piece 23 fourth vehicle body mounting piece 35, 36, 39, 41 standing rib 38 first corrugated portion 40 second Waveform part 43 Third waveform part 44 Fourth waveform part

Claims (3)

A vehicular lamp including a light source in a lamp chamber formed by a housing having a front opening and a front cover attached to the front opening,
The housing includes a housing body including a back wall having a plurality of component mounting portions and a peripheral wall erected on a peripheral end portion of the back wall;
A vehicle body mounting piece for mounting the housing body to the vehicle body,
In the part requiring the rigidity of the vehicle body mounting piece , a corrugated portion is provided
The vehicular lamp, wherein the corrugated portion of the vehicle body mounting piece is continuously formed in a direction intersecting with an imaginary line from the vehicle body mounting portion of the vehicle body mounting piece toward the housing body. Further, a corrugated portion is provided in a portion requiring the rigidity of the back wall,
The vehicular lamp according to claim 1, wherein the corrugated portion of the back wall is formed in the vicinity of a component mounting portion of the housing body. The vehicular lamp according to claim 1 , wherein the corrugated portion of the vehicle body mounting piece is formed with a plurality of standing ribs so as to surround the periphery thereof.

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