Vehicle lighting fixtures

The vehicle lamp's innovative vibration suppressor mechanism, using cylindrical and slit sections, addresses the issue of reduced rigidity due to vibrations, enhancing stability and aiming precision.

JP7597625B2Active Publication Date: 2024-12-10STANLEY ELECTRIC CO LTD
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Patent Information

Application Number
JP2021051032
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-03-25
Publication Date
2024-12-10
Estimated Expiration
2041-03-25

AI Technical Summary

Technical Problem

Existing vehicle lamps with a reflector supported by a pivot part and adjustment screws suffer from reduced rigidity due to vibrations during vehicle operation, which affects the aiming mechanism.

Method used

A vehicle lamp design incorporating a first and second holding member with a vibration suppressor mechanism, featuring cylindrical portions and slit sections that interact to minimize vibration, allowing the reflector to be tilted while suppressing vibrations.

Benefits of technology

The design effectively suppresses reflector vibrations, enhancing the rigidity of resin parts involved in aiming and minimizing nut distortion, thereby improving the vehicle lamp's stability and functionality.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a vehicular lamp capable of suppressing vibration of a reflector (vibration occurring in a case where a vehicle is running, or the like).SOLUTION: A vehicular lamp comprises: a first holding member 20 that holds a light source and a light control member for controlling light emitted by the light source; a second holding member 30 that holds the first holding member so as to be tiltable in vertical and horizontal directions; and a vibration suppression unit that suppresses vibration of the first holding member with respect to the second holding member. The vibration suppression unit comprises: first portions 26, 27 provided in the first holding member; and second portions 32, 33 that are provided in the second holding member, and suppress vibration of the first holding member with respect to the second holding member by abutting the first portions vibrating in the vibration direction of the first holding member.SELECTED DRAWING: Figure 6
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Description

[Technical field]

[0001] The present invention relates to a vehicle lamp, and more particularly to a vehicle lamp capable of suppressing vibration of a reflector. [Background technology]

[0002] A vehicle lamp is known in which a reflector and a housing (lamp body) are connected by a pivot portion (ball joint) and two adjustment screws (aiming screws), and aiming is performed by rotating each adjustment screw and tilting the reflector up, down, left, and right using the pivot portion as a fulcrum (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2002-193024 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in Patent Document 1, the reflector is supported at three points: the pivot portion (ball joint) and two adjustment screws (aiming screws). This means that vibrations of the reflector (vibrations that occur when the vehicle is traveling, etc.) cannot be suppressed, resulting in a problem of reduced rigidity of the resin parts involved in aiming, such as the reflector.

[0005] An object of the present invention is to provide a vehicle lamp capable of suppressing vibration of a reflector (vibration that occurs when the vehicle is traveling, etc.). [Means for solving the problem]

[0006] The vehicle lamp of the present invention comprises a first holding member that holds a light source and a light control member that controls the light emitted by the light source, a second holding member that holds the first holding member so that it can be tilted in the up, down, left, and right directions, and a vibration suppression portion that suppresses vibration of the first holding member relative to the second holding member, wherein the vibration suppression portion comprises a first portion provided on the first holding member and a second portion provided on the second holding member that suppresses vibration of the first holding member relative to the second holding member by abutting against the first portion that vibrates in the vibration direction of the first holding member.

[0007] With this configuration, vibration of the reflector (vibration generated when the vehicle is traveling, etc.) can be suppressed.

[0008] This is due to the provision of a vibration suppressing portion that suppresses vibration of the first holding member relative to the second holding member.

[0009] The above vehicle lamp may include a pivot portion provided on the first holding member, a pivot holder provided on the second holding member and configured to rotatably hold the pivot portion, a first adjusting screw configured to tilt the first holding member in the left-right direction using the pivot portion as a fulcrum, and a second adjusting screw configured to tilt the first holding member in the up-down direction using the pivot portion as a fulcrum.

[0010] In the above vehicle lamp, the first portion may be provided in the first holding member near the first adjusting screw.

[0011] In the above vehicle lamp, the first portion may be provided in the first holding member near the second adjust screw.

[0012] Moreover, in the above-mentioned vehicular lamp, the first portion may be a first cylindrical portion extending in a direction intersecting the vibration direction of the first retaining member, the second portion may be a slit portion having a U-shaped cross section extending in a direction intersecting the vibration direction of the first retaining member, and the first cylindrical portion may be disposed within the slit portion. Effect of the Invention

[0013] According to the present invention, it is possible to provide a vehicle lamp capable of suppressing vibration of a reflector (vibration generated when the vehicle is traveling, etc.). [Brief description of the drawings]

[0014] [Figure 1] 1A is a front view of the vehicle lamp 10, and FIG. [Diagram 2] FIG. 1 is an exploded perspective view of a vehicle lamp 10 (outer lens and the like are omitted). [Diagram 3] 1(a) is a cross-sectional view taken along line AA in FIG. 1(b), and FIG. 1(b) is a cross-sectional view taken along line BB in FIG. [Figure 4] FIG. [Diagram 5] FIG. 13 is a diagram showing that a straight line L2 passing through the pivot portion 23a and the second aiming nut 25 (second adjusting screw N2) is inclined rearward at an angle θ1 with respect to a vertical line LV. [Figure 6] (a) is a diagram showing the aiming range in the left-right direction (angles θ2, θ3), and (b) is a diagram showing the aiming range in the up-down direction (angles θ4, θ5). [Figure 7] 1(a) is a cross-sectional view taken along line AA in FIG. 1(b), and FIG. 1(b) is a cross-sectional view taken along line BB in FIG. [Figure 8] 11A and 11B are diagrams for explaining a vibration suppression operation. [Figure 9] 11A and 11B are diagrams for explaining a vibration suppression operation. [Figure 10] This is an example of a vehicle lamp 10A that uses a mount ring 40 that holds three lenses 41, 42, and 43 that control the light emitted by a light source. [Figure 11]11 is a cross-sectional view taken along line CC of rectangle B3 in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, a vehicle lamp 10 according to an embodiment of the present invention will be described with reference to the accompanying drawings. In each drawing, corresponding components are given the same reference numerals, and duplicated explanations will be omitted.

[0016] Fig. 1(a) is a front view of the vehicle lamp 10, and Fig. 1(b) is a rear view. Fig. 2 is an exploded perspective view of the vehicle lamp 10 (outer lens and the like are omitted). Fig. 3(a) is a DD cross-sectional view of Fig. 1(b), and Fig. 3(b) is an EE cross-sectional view of Fig. 1(b).

[0017] The vehicle lamp 10 of this embodiment is a vehicle headlamp, and is mounted on both the left and right sides of the front end of a vehicle such as an automobile (not shown). Since the vehicle lamps 10 mounted on both the left and right sides have a symmetrical configuration, the vehicle lamp 10 mounted on the right side of the front end of the vehicle (the right side as viewed from the front of the vehicle) will be described below as a representative example. For ease of explanation, XYZ axes are defined below as shown in FIG. 1 etc. The X axis extends in the front-rear direction of the vehicle. The Y axis extends in the vehicle width direction. The Z axis extends in the vertical direction.

[0018] As shown in FIGS. 1 and 2, a vehicle lamp 10 includes a reflector 20 and a housing 30. The reflector 20 and the housing 30 are arranged in a circular arc.

[0019] The reflector 20 carries a light source 21 and a reflective surface 22 that controls the light emitted by the light source 21 .

[0020] The light source 21 is, for example, a bulb light source such as a halogen bulb H4. The light source 21 may be a bulb light source other than a halogen bulb, for example, an HID lamp. The light source 21 is inserted into a bulb mounting hole H1 (see FIG. 2) that penetrates the front and back of the reflector 20 and is detachably attached to the reflector 20 by a known fixing means in a state where the light source 21 is positioned relative to the reflector 20 (reflective surface 22).

[0021] The reflective surface 22 is a reflective surface that controls the light emitted by the light source 21, and is formed on the front side of the reflector 20. Specifically, the reflective surface 22 is configured as a reflective surface (so-called multi-reflector) that combines multiple divided reflective areas so that a low beam light distribution pattern is formed when the low beam filament of the light source 21 emits light, and a high beam light distribution pattern is formed when the high beam filament emits light. The reflective surface 22 is formed, for example, by applying an undercoat, aluminum vapor deposition, and a topcoat in this order to a resin base material (for example, a BMC base material).

[0022] The reflector 20 is attached to the housing 30 so as to be tiltable (aiming) in the up, down, left and right directions. Specifically, although not shown, a head 23a (spherical portion, hereinafter referred to as pivot portion 23a) of a pivot screw 23 attached to the back surface of the reflector 20 is rotatably held by a pivot holder 31 attached to the front surface of the housing 30.

[0023] 3(a), a first adjusting screw N1 inserted into a through hole H2 formed in the housing 30 is screwed into a first aiming nut 24 fixed to the rear surface of the reflector 20. The first adjusting screw N1 is attached to the housing 30 so as to rotate in the same position.

[0024] Fig. 4 is a rear view of the reflector 20. A bubble B1 in Fig. 4 is an enlarged perspective view of a rectangle b1 in Fig. 4. A bubble B2 in Fig. 4 is an enlarged perspective view of a rectangle b2 in Fig. 4.

[0025] 4, the first aiming nut 24 is fixed to a position on the back surface of the reflector 20, a predetermined distance to the right of the pivot screw 23. A straight line L1 passing through the pivot portion 23a and the first aiming nut 24 (first adjusting screw N1) extends approximately horizontally (Y direction).

[0026] 3(b), a second adjusting screw N2 inserted into a through hole H3 formed in the housing 30 is screwed into a second aiming nut 25 fixed to the back surface of the reflector 20. The second adjusting screw N2 is attached to the housing 30 so as to rotate in the same position.

[0027] As shown in Fig. 4, the second aiming nut 25 is fixed to a position on the back surface of the reflector 20 at a predetermined distance below the pivot screw 23. Due to the installation space, the reflector 20 is placed in an inclined state. Therefore, as shown in Fig. 5, the straight line L2 passing through the pivot portion 23a and the second aiming nut 25 (second adjusting screw N2) is perpendicular to the vertical line L V 5, the pivot portion 23a is inclined backward by an angle θ1 with respect to the second aiming nut 25 (second adjusting screw N2). For example, θ1 is 5 degrees. Note that θ1 may be 0 degrees. In FIG. 5, a straight line L2 passing through the pivot portion 23a and the second aiming nut 25 (second adjusting screw N2) is aligned with a vertical line L V 4 is a diagram showing that the vehicle is tilted backward at an angle θ1 with respect to the vehicle.

[0028] Next, the aiming operation will be described.

[0029] First, the aiming operation in the left and right directions will be described.

[0030] FIG. 6(a) is a diagram showing the aiming range in the left-right direction (angles θ2, θ3).

[0031] Aiming in the left-right direction is performed by rotating the first adjusting screw N1 and changing the amount of engagement of the first adjusting screw N1 with the first aiming nut 24.

[0032] For example, suppose that the first adjusting screw N1 is rotated so that the amount of screwing into the first aiming nut 24 is reduced. In this case, the reflector 20 tilts (swings) around the pivot portion 23a as a fulcrum and a straight line L2 passing through the pivot portion 23a and the second aiming nut 25 (second adjusting screw N2) as a center within a range of an angle θ2 (see FIG. 6(a)) to the left (left side as viewed from the front of the vehicle) with respect to the reference axis AX, depending on the amount of rotation of the first adjusting screw N1 (amount of screwing into the first aiming nut 24). The reference axis AX extends in the X direction. θ2 is, for example, 2 degrees.

[0033] On the other hand, suppose that the first adjusting screw N1 is rotated so that the amount of screwing into the first aiming nut 24 increases. In this case, the reflector 20 tilts (swings) around the pivot portion 23a as a fulcrum and a straight line L2 passing through the pivot portion 23a and the second aiming nut 25 (second adjusting screw N2) within a range of an angle θ3 (see FIG. 6(a)) to the right (left when facing the front of the vehicle) with respect to the reference axis AX, in accordance with the amount of rotation of the first adjusting screw N1 (amount of screwing into the first aiming nut 24). θ3 is, for example, 2 degrees.

[0034] As described above, by rotating the first adjusting screw N1 and changing the amount of engagement of the first adjusting screw N1 with the first aiming nut 24, aiming in the left-right direction is performed.

[0035] Next, the aiming operation in the vertical direction will be described.

[0036] FIG. 6(b) is a diagram showing the aiming range (angles θ4, θ5) in the vertical direction.

[0037] Aiming in the vertical direction is performed by rotating the second adjusting screw N2 and changing the amount of screwing into the second aiming nut 25.

[0038] For example, suppose that the second adjusting screw N2 is rotated so that the amount of screwing into the second aiming nut 25 is reduced. In this case, the reflector 20 tilts (swings) upward with respect to the reference axis AX within a range of angle θ4 (see FIG. 6(b)) with the pivot portion 23a as a fulcrum and a straight line L1 passing through the pivot portion 23a and the first aiming nut 24 (first adjusting screw N1) in accordance with the amount of rotation of the second adjusting screw N2 (amount of screwing into the second aiming nut 25). θ4 is, for example, 2 degrees.

[0039] On the other hand, suppose that the second adjusting screw N2 is rotated so that the amount of screwing into the second aiming nut 25 increases. In this case, the reflector 20 tilts (swings) around the pivot portion 23a as a fulcrum and a straight line L1 passing through the pivot portion 23a and the first aiming nut 24 (first adjusting screw N1) in accordance with the amount of rotation of the second adjusting screw N2 (amount of screwing into the second aiming nut 25) within a range of an angle θ5 (see FIG. 6(b)) downward with respect to the reference axis AX. θ5 is, for example, 2 degrees.

[0040] As described above, by rotating the second adjusting screw N2 and changing the amount of engagement of the second adjusting screw N2 with the second aiming nut 25, aiming in the vertical direction is performed.

[0041] Next, a description will be given of a configuration (configuration of a vibration suppressing section) for suppressing vibration (vibration in the vertical direction in FIG. 3) of the reflector 20. The vibration suppressing section (slider mechanism) is configured of a first cylindrical section 26, a second cylindrical section 27, a first slit section 32, and a second slit section 33.

[0042] As shown in FIG. 4, a first cylindrical portion 26 and a second cylindrical portion 27 are provided on the rear surface of the reflector 20.

[0043] The first cylindrical portion 26 is provided on a straight line L1 passing through the pivot portion 23a and the first aiming nut 24 (first adjusting screw N1) and in the vicinity of the first adjusting screw N1. The first cylindrical portion 26 extends in a direction (e.g., Y direction) intersecting (e.g., perpendicular) with the vibration direction (vertical direction) of the reflector 20. Both ends of the first cylindrical portion 26 in the axial direction are supported by support portions 28a, 28b extending from the back surface of the reflector 20 (see balloon B1 in FIG. 4). The first cylindrical portion 26, the support portions 28a, 28b, and the reflector 20 are integrally molded. The first cylindrical portion 26 may be a complete cylindrical shape or an incomplete cylindrical shape. In this embodiment, due to the nature of the mold (due to the draft angle), the first columnar portion 26 is not a perfect columnar shape, but an incomplete columnar shape.

[0044] FIG. 7(a) is a cross-sectional view taken along line AA in FIG. 1(b).

[0045] With the reflector 20 attached to the housing 30 so as to be tiltable in the up, down, left and right directions, the first cylindrical portion 26 is disposed within a first slit portion 32 provided in the housing 30, as shown in FIG. 7(a).

[0046] The first slit portion 32 is a portion having a U-shaped cross section including an upper portion 32a and a lower portion 32b extending in a direction (eg, Y direction) intersecting (eg, perpendicular) with the vibration direction (vertical direction) of the reflector 20.

[0047] The slit width W1 of the first slit portion 32 (the distance between the upper portion 32a and the lower portion 32b; see FIG. 7(a)) is a value that is determined to be smaller than the amount of movement (amount of movement in the Z direction) of the first cylindrical portion 26 due to vibration (vibration in the up and down direction) of the reflector 20.

[0048] In addition, the slit depth D1 (see Figure 7 (a)) of the first slit portion 32 is a value that has been taken into consideration so that even if the reflector 20 tilts around a straight line L2 passing through the pivot portion 23a and the second aiming nut 25 (second adjusting screw N2) with the pivot portion 23a as the fulcrum due to left-right aiming, the first cylindrical portion 26 moves within the first slit portion 32 (i.e., the first cylindrical portion 26 does not move outside the first slit portion 32).

[0049] As shown in FIG. 4, the second columnar portion 27 is provided near the second adjust screw N2. The second columnar portion 27 extends in a direction (e.g., Y direction) intersecting (e.g., perpendicular) with the vibration direction (vertical direction) of the reflector 20, similar to the first columnar portion 26. The second columnar portion 27 is supported at both ends in the axial direction by support portions 29a and 29b extending from the back surface of the reflector 20 (see balloon B2 in FIG. 4). The second columnar portion 27, the support portions 29a and 29b, and the reflector 20 are integrally molded. The second columnar portion 27 may be a perfect columnar shape or an incomplete columnar shape. In this embodiment, due to the convenience of the mold (due to the draft angle), the second columnar portion 27 is configured to be an incomplete columnar shape rather than a perfect columnar shape.

[0050] FIG. 7(b) is a cross-sectional view taken along line BB of FIG. 1(b).

[0051] With the reflector 20 attached to the housing 30 so as to be tiltable in the up, down, left and right directions, the second cylindrical portion 27 is disposed within a second slit portion 33 provided in the housing 30, as shown in FIG. 7(b).

[0052] The second slit portion 33 is a portion having a U-shaped cross section including an upper portion 33a and a lower portion 33b extending in a direction (eg, Y direction) intersecting (eg, perpendicular) the vibration direction (vertical direction) of the reflector 20.

[0053] The slit width W2 of the second slit portion 33 (the distance between the upper portion 33a and the lower portion 33b; see FIG. 7(b)) is a value that is determined to be smaller than the amount of movement (amount of movement in the Z direction) of the second cylindrical portion 27 due to vibration (vibration in the up-down direction) of the reflector 20.

[0054] Further, the slit depth D2 (see FIG. 7(b)) of the second slit portion 33 is a value determined so that the second cylindrical portion 27 moves within the second slit portion 33 (i.e., the second cylindrical portion 27 does not move outside the second slit portion 33) even when the reflector 20 is tilted about a straight line L1 passing through the pivot portion 23a and the first aiming nut 24 (first adjusting screw N1) with the pivot portion 23a as a fulcrum due to vertical aiming. However, in this embodiment, due to mold convenience (due to the draft angle), the upper portion 33a of the second slit portion 33 is shorter than the lower portion 33b. Furthermore, since the vibration (vertical vibration) on the second cylindrical portion 27 side of the reflector 20 is smaller than the vibration (vertical vibration) on the first cylindrical portion 26 side, and the second cylindrical portion 27 and the second slit portion 33 serve as auxiliary vibration countermeasures, the upper portion 33a of the second slit portion 33 may be shorter than the lower portion 33b.

[0055] Next, the vibration suppression operation will be described.

[0056] 8 and 9 are diagrams for explaining the vibration suppression operation.

[0057] In Fig. 8, "0 degrees" represents the positional relationship between the first cylindrical portion 26 and the first slit portion 32 provided in the housing 30 in a reference state before aiming. In Fig. 8, "2 degrees" represents the positional relationship between the first cylindrical portion 26 and the first slit portion 32 provided in the housing 30 in a state in which the reflector 20 is tilted (swings) at an angle θ2 (see Fig. 6(a)) to the left (left side as viewed from the front of the vehicle) with respect to the reference axis AX, centered on a straight line L2 passing through the pivot portion 23a and the second aiming nut 25 (second adjusting screw N2), with the pivot portion 23a as a fulcrum. In Figure 8, "-2 degrees" represents the positional relationship between the first cylindrical portion 26 and the first slit portion 32 provided in the housing 30 when the reflector 20 is tilted (swinging) at an angle θ3 (see Figure 6(a)) to the right (to the right as you face the front of the vehicle) with respect to the reference axis AX, centered on a straight line L2 that passes through the pivot portion 23a and the second aiming nut 25 (second adjusting screw N2), with the pivot portion 23a as the fulcrum.

[0058] 8, it can be seen that when aiming within the range of angles θ2 and θ3 in the left-right direction, the first cylindrical portion 26 moves within the first slit portion 32 (i.e., the first cylindrical portion 26 does not move outside the first slit portion 32). In other words, when aiming within the range of angles θ2 and θ3 in the left-right direction, the first cylindrical portion 26 moves while being sandwiched between the upper portion 32a and the lower portion 32b of the first slit portion 32.

[0059] As a result, when the reflector 20 (first cylindrical portion 26) vibrates (in the vertical direction), the vibrating first cylindrical portion 26 comes into contact with the first slit portion 32 (upper portion 32a or lower portion 32b). This suppresses the vibration (in the vertical direction) of the reflector 20 (first cylindrical portion 26).

[0060] In Fig. 9, "0 degrees" represents the positional relationship between the second cylindrical portion 27 and the second slit portion 33 provided in the housing 30 in a reference state before aiming. In Fig. 9, "2 degrees" represents the positional relationship between the second cylindrical portion 27 and the second slit portion 33 provided in the housing 30 in a state in which the reflector 20 is tilted (swings) upwardly at an angle θ4 (see Fig. 6(b)) with respect to the reference axis AX, centered on a straight line L1 that passes through the pivot portion 23a and the first aiming nut 24 (first adjusting screw N1), with the pivot portion 23a as the fulcrum. In Figure 9, "-2 degrees" represents the positional relationship between the second cylindrical portion 27 and the second slit portion 33 provided in the housing 30 when the reflector 20 is tilted (swinging) downward at an angle θ5 (see Figure 6(b)) relative to the reference axis AX, centered on a straight line L1 that passes through the pivot portion 23a and the first aiming nut 24 (first adjusting screw N1), with the pivot portion 23a as the fulcrum.

[0061] 9, it can be seen that when aiming in the up-down direction within the range of angles θ4 and θ5, the second columnar portion 27 moves within the second slit portion 33 (i.e., the second columnar portion 27 does not move outside the second slit portion 33). In other words, when aiming in the left-right direction within the range of angles θ4 and θ5, the second columnar portion 27 moves while being sandwiched between the upper portion 33a and the lower portion 33b of the second slit portion 33.

[0062] As a result, when the reflector 20 (second cylindrical portion 27) vibrates (in the vertical direction), the vibrating second cylindrical portion 27 comes into contact with the second slit portion 33 (upper portion 33a or lower portion 33b). This suppresses the vibration (in the vertical direction) of the reflector 20 (second cylindrical portion 27).

[0063] As described above, according to this embodiment, it is possible to suppress vibrations (vertical vibrations occurring when the vehicle is traveling, etc.) of the reflector 20. As a result, the rigidity of resin parts involved in aiming, such as the reflector, is improved.

[0064] This is because the reflector 20 is provided with a vibration suppression section (slider mechanism) that suppresses vibration (vertical vibration) of the reflector 20 relative to the housing 30, namely, a first cylindrical section 26, a second cylindrical section 27, a first slit section 32, and a second slit section 33, with the first cylindrical section 26 being disposed within the first slit section 32 and the second cylindrical section 27 being disposed within the second slit section 33. During up-and-down vibration, there is no (almost no) visible movement, but distortion occurs in the first aiming nut 24 and the second aiming nut 25. In contrast, according to this embodiment, the vibration suppression unit (slider mechanism) prevents the first aiming nut 24, the second aiming nut 25, etc. from moving more than necessary, so that distortion is kept to a minimum. As a result, damage to the first aiming nut 24 and the second aiming nut 25 is suppressed.

[0065] Next, a modified example will be described.

[0066] In the above embodiment, an example has been described in which the reflector 20 that holds the light source 21 (bulb light source) and the reflective surface 22 that controls the light emitted by the light source 21 is used as the first holding member, but the present invention is not limited to this.

[0067] For example, the first holding member may be a mount ring 40 (also called a bracket) that holds a light source (a semiconductor light-emitting element such as an LED) and an optical system such as a lens that controls the light emitted by the light source (a low beam unit, a high beam unit).

[0068] FIG. 10 shows an example of a vehicle lamp 10A that uses a mount ring 40 that holds three lenses 41, 42, and 43 that control the light emitted by a light source.

[0069] In addition, in the above embodiment, when suppressing vibration (vertical vibration) of the reflector 20, an example has been described in which the first cylindrical portion 26 (and the second cylindrical portion 27) extending in a direction intersecting (e.g., perpendicular) to the vibration direction (e.g., the Y direction) and the first slit portion 32 (and the second slit portion 33) having a U-shaped cross-sectional shape extending in a direction intersecting (e.g., perpendicular) to the vibration direction (e.g., the Y direction) are used as the vibration suppression portion (slider mechanism), but this is not limited to this.

[0070] For example, when vibration (left-right vibration) of the reflector 20 is suppressed, a columnar portion extending in a direction (for example, Z direction) intersecting (for example, perpendicular) with respect to the vibration direction and a slit portion having a U-shaped cross section extending in a direction (for example, Z direction) intersecting (for example, perpendicular) with respect to the vibration direction may be used as the vibration suppression portion (slider mechanism) (see FIG. 11). FIG. 11 is a CC cross-sectional view in the rectangle B3 in FIG. 10, and shows an example in which a columnar portion 26A extending in a direction (for example, Z direction) intersecting (for example, perpendicular) with respect to the vibration (left-right vibration) direction of the reflector 20 and a slit portion 32A having a U-shaped cross section extending in a direction (for example, Z direction) intersecting (for example, perpendicular) with respect to the vibration direction are used. FIG. 11 is a CC cross-sectional view in the rectangle B3 in FIG. 10.

[0071] In the above embodiment, the first cylindrical portion 26 (and the second cylindrical portion 27) are integrally molded with the reflector 20, but the present invention is not limited to this. For example, the first cylindrical portion 26 (and the second cylindrical portion 27) may be configured as a separate part from the reflector 20 and attached to the reflector 20 later.

[0072] The vehicle lamp of the present invention may be applied to an LED headlamp (projector type, reflector type, or direct projection type).

[0073] The numerical values ​​shown in the above embodiments are all examples, and it goes without saying that suitable numerical values ​​different from these can be used.

[0074] The above-described embodiments are merely examples in all respects. The present invention should not be construed as being limited by the description of the above-described embodiments. The present invention can be implemented in various other forms without departing from the spirit or main characteristics thereof. [Explanation of symbols]

[0075] Reference Signs List 10, 10A...vehicle lamp, 20...reflector, 21...light source, 22...reflective surface, 23...pivot screw, 23a...head (pivot portion), 24...first aiming nut, 25...second aiming nut, 26...first cylindrical portion, 26A...cylindrical portion, 27...second cylindrical portion, 28a, 28b...support portion, 29a, 29b...support portion, 30...housing, 31...pivot holder, 32...first Slit section, 32A...slit section, 32a...upper section, 32b...lower section, 33...second slit section, 33a...upper section, 33b...lower section, 40...mount ring, 41-43...lens, AX...reference axis, B1, B2...blowout, D1, D2...slit depth, H1...valve mounting hole, H2, H3...through hole, N1...first adjusting screw, N2...second adjusting screw, W1, W2...slit width

Claims

1. a first holding member that holds a light source and a light control member that controls light emitted by the light source; a second holding member that holds the first holding member so as to be tiltable in up, down, left and right directions; a vibration suppression portion that suppresses vibration of the first holding member relative to the second holding member; an aiming mechanism that mounts the first holding member to the second holding member so as to be tiltable in the left-right direction and the up-down direction, The aiming mechanism includes: A pivot portion provided on the first holding member; a pivot holder provided on the second holding member and configured to rotatably hold the pivot portion; a first adjusting screw that tilts the first holding member in the left-right direction with the pivot portion as a fulcrum; a second adjusting screw that tilts the first holding member in the up-down direction with the pivot portion as a fulcrum, The vibration suppression unit is a first cylindrical portion provided on the first holding member and extending in a direction intersecting a vibration direction of the first holding member; a first slit portion provided on the second holding member, the first slit portion contacting the first cylindrical portion vibrating in a vibration direction of the first holding member to suppress vibration of the first holding member relative to the second holding member; the first cylindrical portion is located on a straight line passing through the pivot portion and the first adjusting screw, in the vicinity of the first adjusting screw, and is disposed within the first slit portion, The first slit portion has a U-shaped cross section extending in a direction intersecting with the vibration direction of the first holding member, a width of the first slit portion is smaller than a movement amount of the first cylindrical portion due to vibration of the first holding member, The depth of the first slit portion is such that the first columnar portion does not move out of the first slit portion even when the first holding member is tilted by the second adjusting screw.

2. The vibration suppression unit is a second cylindrical portion extending in a direction intersecting the vibration direction of the first holding member; a second slit portion that is provided on the second holding member and that suppresses vibration of the first holding member relative to the second holding member by contacting the second cylindrical portion that vibrates in a vibration direction of the first holding member, the second columnar portion is located near the second adjusting screw, extends in the same direction as the first columnar portion, and is disposed within the second slit portion; The second slit portion has a U-shaped cross section extending in a direction intersecting with the vibration direction of the first holding member, a width of the second slit portion is smaller than a movement amount of the second cylindrical portion due to vibration of the first holding member, 2. The vehicle lamp according to claim 1, wherein the second slit portion has a depth such that the second cylindrical portion does not move out of the second slit portion even when the first holding member is tilted by the first adjusting screw.

3. The first retaining member has: a first aiming nut located near one end of the first cylindrical portion and into which the first adjusting screw is screwed; 3. The vehicular lamp according to claim 2, further comprising: a second aiming nut located near one end of the second cylindrical portion and screwed onto the second adjusting screw.

4. A vehicle lighting fixture as described in any one of claims 1 to 3, wherein both axial ends of the first cylindrical portion are supported by support portions extending from the rear surface of the first retaining member.

5. A vehicle lighting fixture as described in any one of claims 1 to 4, wherein the first holding member is a mount ring that holds a plurality of optical systems.

Citation Information

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