JP2010287495A - Headlamp for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a headlamp for vehicle in which reduction of damages to a pedestrian is aimed by alleviating an impact to the pedestrian at the time of collision of the vehicle with the pedestrian. <P>SOLUTION: The headlamp for vehicle has a lamp outer casing 4 which is composed of a lamp housing 2 and a cover 3 to close the front opening of the lamp housing and of which the interior space is formed as a lamp chamber 5, a light source arranged in the lamp chamber, and a reflector 6 on which the light source 7 is installed and which reflects light emitted from the light source to the front. A cut-out part 6a is formed on the reflector at the upper side than the installation position of the light source. Since the cut-out part 6a is formed at the upper side than the installation position of the light source in the reflector, the reflector does not exist anymore on the upper side of the light source in the lamp chamber. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle headlamp. More specifically, the present invention relates to a technical field in which a notch portion is formed above a light source mounting position on a reflector to reduce damage by mitigating impact on a pedestrian at the time of collision with a pedestrian of a vehicle.

  Some vehicle headlamps include a light source and a reflector that reflects light emitted from the light source inside a lamp outer casing formed by a cover and a lamp housing.

  In such a vehicle headlamp, when the vehicle collides with a pedestrian, it is necessary to reduce damage due to the relaxation of the impact on the pedestrian.

  Therefore, in conventional vehicle headlamps, a fragile portion is provided in a mounting portion (mounting bracket) for mounting the lamp housing to the vehicle body so that the fragile portion is broken or bent by an impact at the time of a collision. In some cases, the damage is reduced by mitigating the impact on the surface (for example, see Patent Document 1).

  In another conventional vehicle headlamp, a fragile portion is provided in a seal groove which is a connecting portion between a lamp housing and a cover, and the fragile portion is broken or bent by an impact at the time of a collision. There is one in which damage is reduced by mitigating (see, for example, Patent Document 2).

2006-27488 2007-15453

  In the above-described conventional vehicle headlamp, when the vehicle collides with a pedestrian, the weakened portion provided in the mounting groove for mounting the lamp housing to the vehicle body or the seal groove which is the coupling portion between the lamp housing and the cover. By breaking or bending, the pedestrian is reduced in damage.

  However, when the vehicle collides with the pedestrian and the pedestrian contacts the vehicle headlamp, the cover first contacts the pedestrian, so that the cover is deformed or destroyed. There is a possibility of contact with a rigid structure disposed inside, for example, a reflector.

  Therefore, in the conventional vehicle headlamp, the pedestrian contacts the reflector before the weakened portion provided in the attachment portion or the seal groove is broken or bent, or the weakness provided in the attachment portion or the seal groove. Even if the portion is broken or bent, if the pedestrian comes into contact with the reflector, great damage is given to the pedestrian.

  Accordingly, an object of the vehicle headlamp according to the present invention is to reduce damage by mitigating the impact on the pedestrian when the vehicle collides with the pedestrian.

  In order to solve the above-described problem, a vehicle headlamp includes a lamp outer casing that includes a lamp housing and a cover that closes a front opening of the lamp housing, and an internal space formed as a lamp chamber. And a reflector that reflects light emitted from the light source to which the light source is attached, and has a notch formed above the light source mounting position. is there.

  Therefore, in the vehicle headlamp, there is no reflector above the light source in the lamp chamber.

  The vehicle headlamp according to the present invention includes a lamp housing having a lamp housing and a cover that closes a front opening of the lamp housing, and an internal space formed as a lamp chamber, a light source disposed in the lamp chamber, And a reflector that reflects light emitted from the light source forward. A notch is formed in the reflector above a position where the light source is attached.

  Therefore, since there is no reflector above the light source in the lamp room, when the pedestrian comes into contact with the vehicle headlamp, the pedestrian is less likely to contact the reflector, and the impact on the pedestrian is reduced. Damage can be reduced.

  In the invention described in claim 2, an extension that shields a part of the structure disposed in the lamp chamber is disposed in the lamp chamber, and a space located on the upper side and the front side in the lamp chamber is provided. When the upper front space is defined, an extension is disposed in a space other than the upper front space in the lamp chamber.

  Therefore, since no extension exists in the upper front space of the lamp room, the impact on the pedestrian is further mitigated, and damage to the pedestrian can be further reduced.

  The best mode for carrying out the vehicle headlamp of the present invention will be described below with reference to the accompanying drawings.

  The vehicle headlamp 1 is mounted and arranged at both left and right ends of the front end of the vehicle body.

  As shown in FIG. 1, the vehicle headlamp 1 includes a lamp housing 2 having a recess opened forward, and a cover 3 that closes an opening surface of the lamp housing 2. A lamp outer casing 4 is configured. An internal space of the lamp outer casing 4 is formed as a lamp chamber 5.

  A reflector 6 is disposed in the lamp chamber 5, and a light source 7 is attached to the rear end of the reflector 6. The light source 7 is disposed at a position closer to the rear in the approximate center in the vertical direction of the lamp chamber 5. The reflector 6 functions as a reflecting member that reflects light emitted from the light source 7 forward.

  In the reflector 6, a notch 6 a is formed at a position near the upper side of the light source 7. Therefore, when the space located on the upper side in the lamp chamber 5 is defined as the upper space 5a, the reflector 6 does not exist in the upper space 5a.

  Further, if the space located on the front side of the upper space 5a is defined as the upper front space 5b, the lamp chamber 5 has an extension 8 at a position other than the upper front space 5b, for example, a lower space in the lamp chamber 5. Is arranged. The extension 8 functions as a shielding member that shields a part of the structure disposed in the lamp chamber 5.

  As described above, neither the reflector 6 nor the extension 8 exists in the upper front space 5b of the lamp chamber 5, and the upper front space 5b is an empty space in which no structure is arranged.

  When the vehicle having the vehicle headlamp 1 configured as described above collides with a pedestrian and the pedestrian contacts the vehicle headlamp 1, the cover 3 is deformed or broken by an impact. At this time, in consideration of the mounting position of the vehicle headlamp 1 with respect to the vehicle body, there is a high possibility that a part 100 of the pedestrian's body, for example, the head will contact the upper part of the cover 3.

  When the pedestrian's body part 100 comes into contact with the upper part of the cover 3, the upper part of the cover 3 is deformed or broken by an impact, and the body part 100 becomes the upper space 5 a of the lamp chamber 5. In particular, it enters the upper front space 5b (see FIG. 2).

  However, since the reflector 6 does not exist in the upper space 5a of the lamp chamber 5, it is difficult for the body part 100 to come into contact with the reflector 6, impact on the pedestrian is reduced, and damage to the pedestrian can be reduced. .

  Further, since the upper front space 5b of the lamp chamber 5 is an empty space in which the extension 8 does not exist in addition to the reflector 6, the part 100 of the body does not easily contact the extension 8, and the impact on the pedestrian is further alleviated. Thus, damage to pedestrians can be further reduced.

  In addition, although the example which the reflector 6 does not exist in the upper side space 5a of the lamp chamber 5 was shown above, if the notch part 6a is formed above the attachment position of the light source 7 in the reflector 6, the upper side space A part of the reflector 6 may exist in 5a.

  For example, a part of the reflector 6 may be positioned in the upper space 5a, and a slit-shaped notch extending in a predetermined direction may be formed in a portion positioned in the upper space 5a. For example, a part of the reflector 6 may be positioned in the upper space 5a, and a groove-shaped notch extending in a predetermined direction may be formed on the back side of the portion positioned in the upper space 5a.

  Thus, when a part of the reflector 6 is positioned in the upper space 5a, a part 100 of the pedestrian's body is positioned in the upper space 5a of the reflector 6 when the vehicle collides with the pedestrian. Although there is a possibility of contact with the part, the reflector 6 is easily broken or deformed at the time of contact because the rigidity of the reflector 6 is lowered by the notch 6a.

  Therefore, the impact on the pedestrian is reduced, and damage to the pedestrian can be reduced.

  The shapes and structures of the respective parts shown in the best mode for carrying out the invention described above are merely examples of the embodiments performed in practicing the present invention. The range should not be interpreted in a limited way.

FIG. 2 shows the best mode of the vehicle headlamp according to the present invention together with FIG. 2, and is a schematic sectional view of the vehicle headlamp. It is a schematic sectional drawing which shows the state by which the cover was fractured | ruptured by the impact and the pedestrian's body entered the lamp chamber.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle headlamp, 2 ... Lamp housing, 3 ... Cover, 4 ... Lamp housing, 5 ... Lamp chamber, 5b ... Upper front space, 6 ... Reflector, 6a ... Notch part, 7 ... Light source, 8 ... extension

Claims (2)

A lamp housing having a lamp housing and a cover that closes the front opening of the lamp housing, and an internal space formed as a lamp chamber;
A light source disposed in the lamp chamber;
A reflector that is attached to the light source and reflects light emitted from the light source toward the front;
A vehicular headlamp characterized in that a notch is formed in the reflector above the mounting position of the light source. An extension that shields a part of the structure disposed in the lamp chamber is disposed in the lamp chamber,
When the space located on the upper side and the front side in the lamp chamber is the upper side front space,
The vehicle headlamp according to claim 1, wherein an extension is disposed in a space other than the upper front space in the lamp chamber.

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