JP4504136B2 - Vehicular lamp with impact mitigation configuration - Google Patents

Description

  The present invention relates to a vehicular lamp such as a headlamp. For example, in recent years, a plurality of lamps such as a clearance lamp and a turn signal lamp have been combined in recent years. A vehicle having an impact mitigation structure for a vehicular lamp that is more likely to be injured when a collision with a pedestrian occurs because the amount of protrusion from the vehicle body has increased so that it can be seen from the range. This is related to lighting equipment.

  As a mechanism for reducing the impact of a conventional vehicular lamp having this type of impact mitigation structure, the mechanisms shown in FIGS. 7 to 8 are known. First, the mechanism shown in FIG. The lower front side of the headlamp A1 is rotatably supported by an axis A6, and the lower side of the headlamp A1 is supported by a shape that is easily deformed by pressure, and a bracket A10 formed of a member. deep.

  By forming in this way, for example, when a pedestrian or the like collides with the headlamp A1, the energy absorption bracket A10 is deformed by the stress F at that time, and the headlamp A1 is indicated by a two-dot chain line in the figure. Retreats to ease the impact at the time of collision, and reduces and protects the intensity of impact given to pedestrians and the like.

  Further, in the case shown in FIG. 8, a deformable portion is formed on the outer shell of the headlamp B1, which is usually formed of a lens and a housing, and when a collision with a pedestrian or the like occurs, In this example, a bellows-like part B16 is formed in a part of the housing that is attached to the vehicle body, and the housing is connected via the bellows-like part B16. A lens B2 is attached to the tip.

Therefore, when a pedestrian or the like collides with the lens B2, the bellows-like portion B16 is deformed so that the lens B2 is retracted, so that the impact on the pedestrian is alleviated and the purpose is achieved. Become. In FIGS. 7 and 8, the reference numerals entered in the drawings are changed so that the reference numerals do not overlap with the present invention.
JP 2000-280816 A JP 2000-213225 A

  However, the conventional impact mitigation configuration described above is basically a configuration capable of mitigating an impact from one direction substantially orthogonal to the lens. This is because most of the conventional lenses were formed with a quadratic curved surface such as a quadratic curved surface facing the front of the vehicle body or a quadratic curved surface along the inclined vehicle body. This is because the direction of absorbing water could satisfy the purpose almost in one direction.

  However, in recent years, the shape of the lens has also become complicated, and there are few simple quadratic curved surfaces, such as a cubic curved surface that wraps around the front, side, and top of the vehicle body, Even in such a case, the vehicle is located on the front surface and the upper surface of the vehicle, and the configuration that only responds to an impact from one direction as in the above-described conventional example cannot sufficiently achieve the purpose. Has occurred.

  Also, in the conventional shock mitigation configuration, when a relatively hard part such as the head collides with the lens at the time of collision with a pedestrian or the like, the contact area of the collision part is small, so the unit area is extremely small. In some cases, the total amount of stress generated is relatively small despite the fact that a large force is exerted on the surface, so that it is impossible to absorb the impact due to the deformation of the lamp.

  Furthermore, when a protrusion is present on the lens surface, a very large stress is locally generated, so that it is difficult to cope with the conventional impact relaxation configuration.

As a specific means for solving the above-described conventional problems, the present invention is a vehicular lamp having a structure for reducing the impact on a pedestrian at the time of a collision that causes an impact of a specified value or more . The first impact absorbing means provided on the entire surface of the lens of the vehicular lamp, and the first impact absorbing means are also provided overlappingly on a portion where an impact exceeding a specified value partially generated on the same lens is generated. The first shock absorbing means comprises a fragile portion in a bracket for mounting the vehicular lamp including the lens to the vehicle body, and at least a position of the vehicular lamp at the time of a collision is provided. It is a mechanism that causes movement to reduce impact , and the configuration of the second impact absorbing means is such that a thinned portion is provided in the shape of a groove in the lens of a vehicle lamp, and at the time of a collision, the thinned portion of the lens Break The a mechanism to perform the cushioning occurs, the thinning section, around a portion of the lens surface which projects with respect to the general plane of determining the entire shape of the lens surface or applied to the interior, with, A shock absorbing means characterized in that the entire surface of the lens has a shock absorbing characteristic that has a shock absorbing characteristic that satisfies a specified value, and a plurality of directions for performing a shock reducing with respect to the occurrence of a shock are set. By providing the vehicular lamp provided with the above structure, it is possible to absorb the impacts from a plurality of directions, thereby improving safety and solving the problem.

  According to the present invention, a vehicular lamp provided with a structure for reducing the impact from a plurality of directions so as to be able to absorb the impact from a plurality of directions, a current cubic curved surface or the like is employed. Even in a vehicular lamp that is expected to collide from this direction, it is possible to increase the direction in which the shock is absorbed and to improve the safety.

  Below, this invention is demonstrated in detail based on embodiment shown in a figure. 1 and FIG. 2 is a vehicle lamp according to the present invention, and the vehicle lamp 1 is provided with a headlight 2 at the outermost position when mounted on a vehicle body. A turn signal light 3 is provided on the inner side of the vehicle body, and a clearance light 4 is provided above the headlight 2 or the turn signal light 3 so as to protrude, and all the lights 2, 3, 4 are integrated. The lens 5 is covered.

  Accordingly, the lens 5 covering the plurality of types of lights 2, 3, 4 is exposed to the front, side, and upper side of the vehicle body (not shown), and in particular, the clearance light 4 protrudes upward. ing. Therefore, the possibility of causing a collision with a pedestrian or the like occurs in the above-described front, side, and upper direction.

  Here, in particular, the clearance light 4 protrudes with a relatively small area, as is apparent from FIG. 2, and therefore, when a collision is made on this portion, the stress during the collision is concentrated on the small area. Therefore, there is a possibility that injury to the pedestrian side may be expanded more than other parts, and it is desirable to have a configuration in which shock absorption is effectively performed.

  Therefore, in the present invention, when a collision from the horizontal direction occurs on the lens 5 of the vehicular lamp 1, the first shock absorbing means 6 and when the collision occurs from above on the lens 5 The second shock absorbing means 7 is provided, and the two types (two directions) of the shock absorbing means 6 and 7 are provided in this way, so that it is large when a collision occurs from either side. It will be possible to prevent injury.

  Here, in the present invention, basically, with the first shock absorbing means 6 provided in the lens 5 from the horizontal direction, most of the shock from the vertical (upper) direction is also in accordance with the relevant laws and regulations. It is formed to have an absorption capacity within the specified value. However, as described above, a part protruding from the clearance light 4 is provided on a part of the upper surface, and this part accidentally collides. In this case, the stress is concentrated on the collision part, and there is a possibility that an impact of a specified value or more is partially applied. Therefore, the second shock absorbing means 7 is provided to correspond to the part.

  Therefore, in the present invention, basically, most of the portions of the lens 5 are absorbed by the first impact absorbing means so that the impact is less than the specified value. By providing the second impact absorbing means 7 in a portion where it is difficult to make the value less than the specified value, the entire lens 5 is prevented from giving an impact more than the specified value to the collided human body, for example. It is.

  Next, the configuration of the impact absorbing means 6 and 7 will be described. 3 and 4 show a bracket 61 that constitutes the first shock absorbing means 6, and this bracket 61 is shown in FIG. 1 in order to attach the vehicle lamp 1 to a vehicle body (not shown). As shown, it is provided at a plurality of locations of the housing 8 portion of the vehicular lamp 1. For example, the vehicular lamp 1 is attached to the vehicle body by means such as screwing.

  At this time, the bracket 61 is provided with a fragile portion 61a having a reduced thickness from the middle. When an impact is applied, the bracket 61 is deformed such as bending at the fragile portion 61a, and the lens 5 is moved. Mitigates the applied impact. Since the collision may occur from the front, the side, and the upper side in the shape of the vehicle lamp 1, the position and shape of the weakened portion 61 a in the bracket 61 are also made to correspond to the direction of impact. Shall be provided.

  5 and 6 show the configuration of the second shock absorbing means 7, and as described above, it protrudes in part depending on the design or performance requirements for the lens 5. A portion 71 may be formed, and when such a portion 71 collides with the protruding portion 71, the stress concentrates and the impact received increases.

  Therefore, the basic configuration principle of the second shock absorbing means 7 is that a substantially V-shaped groove 71a is provided so as to surround the protruding portion 71 as shown in FIG. Sometimes, all or a part of the groove 71a is broken and the impact applied to the abutting object is alleviated. Alternatively, as shown in FIG. 2, a substantially V-shaped groove 71a may be provided in the top plate portion of the projecting portion 71 so that the top plate portion is broken. In any case, it is effective to provide the acute groove 71a in the corner portion where the stress is concentrated when receiving an impact.

  At this time, since the groove 71a is provided on the surface of the lens 5 that is transparent, the light source light is reflected at the time of lighting, for example, to give the viewer a sense of incongruity, or the vehicular lamp 1 itself It may cause a situation such as disturbing the design. In this case, as shown in FIG. 6, when the semicircular lens cuts 9 are arranged parallel to the surface of the lens 5, the specific distance 1 between the specific rows to be broken is widened. Use a lens-cut design, such as making a deep cut in the part and breaking from that part, so as not to create a sense of incongruity.

  As described above, by deforming the bracket 61 according to the present invention, the entire vehicular lamp 1 including the lens 5 is moved in a direction substantially along the applied force to reduce the impact. It is assumed that the first shock absorbing means copes with a normal collision.

  However, in the case where the projecting portion 71 or the like is formed on the lens 5, if a collision occurs with this portion, the force per unit area applied to the colliding side even when the bracket 61 is deformed with the same force. This increases the potential for injury and damage. Therefore, in the present invention, the second impact absorbing means 7 that breaks at the specified value is provided in the protruding portion 71 to prevent an increase in damage.

  Therefore, by providing the first shock absorbing means 6 and the second shock absorbing means 7, for example, in order to improve the visibility of the lights from the side or the rear of the vehicle, the area is relatively large. Even in the lens 5 provided with a small protruding portion, when a pedestrian or the like collides, the impact is surely reduced and the safety is further improved.

  In the present embodiment, the second impact absorbing means 7 is provided for the protruding portion 71. However, many lamps having a large lamp upper surface portion as a feature of the lamps that have been enlarged in recent years are in contact with pedestrians. Since the head collides with the upper surface of the lamp, it is effective to reduce damage by providing the lamp lens with the second impact absorbing means even if there is no protrusion.

  At that time, it is preferable to provide the shock absorbing means 7 on the upper surface of the lens. However, when the shock absorbing means 7 is provided on the front surface or the side surface of the lens, it is necessary to consider so as not to adversely affect the projection light.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows schematically the embodiment of a vehicle lamp provided with the structure of the impact relaxation based on this invention in the state which decomposed | disassembled partially. It is sectional drawing which follows the AA line of FIG. It is explanatory drawing which shows the example of a structure of the 1st impact absorption means of the vehicle lamp which concerns on this invention. It is sectional drawing which follows the BB line of FIG. It is explanatory drawing which shows the example of a structure of the 2nd impact absorption means of the vehicle lamp which concerns on this invention. It is sectional drawing which follows the BB line of FIG. It is explanatory drawing which shows a prior art example. It is explanatory drawing which shows another prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Vehicle lamp 2 ... Headlight 3 ... Turn signal light 4 ... Clearance light 5 ... Lens 6 ... 1st impact absorption means 61 ... Bracket 61a ... Fragile part 7 ... 2nd impact absorption means 71 ... Projection part 71a ... Groove 8 ... Housing 9 ... Lens cut

Claims (1)

A vehicular lamp provided with a shock absorbing means for a pedestrian in case of a collision that causes an impact exceeding a specified value,
The shock absorbing means generates a shock exceeding a specified value that is partially generated in the same lens by the first shock absorbing means provided on the entire surface of the lens of the vehicular lamp and the first shock absorbing means. Consisting of a second shock absorbing means provided overlapping the part,
The structure of the first shock absorbing means is a mechanism in which a weak portion is provided in a bracket for mounting a vehicle lamp including the lens to a vehicle body, and at the time of a collision, the vehicle lamp is caused to move at least in position to reduce the impact. And
The configuration of the second impact absorbing means is a mechanism that provides a thinned portion in the shape of a groove in the lens of the vehicle lamp, and causes a shock at the impact by causing a breakage at the reduced thickness portion of the lens at the time of collision,
The thinned portion is provided around or inside a portion of the lens surface protruding relative to a general surface that determines the overall shape of the lens surface, and thus the entire surface of the lens satisfies a specified value. A vehicular lamp provided with impact absorbing means.

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