Vehicle lighting tool

Abstract

To provide a vehicle lighting tool in which a second member can be attached to a first member in a stable state while improving a design appearance.SOLUTION: A locking projection 24 has: a neck part 24a inclined from a lower face of a first rib wall 21 toward one side of a front-rear direction of a flat panel part 31; and a head part 24b projecting from a tip end side of the neck part 24a toward both sides in a width direction. A locking recess 32 has: a slit part 32a cutting out a tip end side of the flat panel 31 in a thickness direction; a pair of first contact parts 32b positioned on both sides in a width direction of the slit part 32a and on a lower end side of the slit part 32a, and coming into contact with the edge part with a tip end side of the neck part 24a; and a pair of second contact parts 32c positioned on both sides in the width direction of the slit part 32a and at an edge part on an upper edge side of the slit part 32a and coming into contact with a base end side of the neck part 24a.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a vehicle lamp. [Background technology]

[0002] For example, a vehicle lamp mounted on a vehicle has a structure in which components such as a light source, inner lens, reflector, extension, and bracket are arranged inside a lamp body composed of a housing with an opening at the front and an outer lens that covers the opening of the housing, and these components are attached to the inside of the lamp body.

[0003] For example, in the invention described in Patent Document 1 below, one member is attached to another member by engaging a hook portion provided on one member with a hole portion provided on the other member. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 4546434 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the mounting structure that engages the hook portion with the hole may be visible from the front side of the vehicle lamp. For example, when attaching an insulating plate along the lower edge of an opening from the back side of an extension with an opening, due to constraints such as the dimensions required to engage the hook portion of the hole in the insulating plate, it is necessary to provide a hook portion on the extension that is longer than the lower edge. In this case, the hook portion is visible through the opening, which detracts from the aesthetic appearance of the extension from the front side.

[0006] The present invention has been proposed in view of the above-mentioned conventional circumstances, and aims to provide a vehicle lamp that has an improved design appearance and a structure that allows a second member to be stably attached to a first member. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides the following means. [1] A vehicle lamp having a structure in which at least a first member and a second member are disposed inside a lamp body formed of a housing with an opening at the front and an outer lens covering the opening of the housing, and the second member is attached to the first member, the first member has an opening, a first rib wall protruding rearward from a rear surface side at a position along a lower edge of the opening, and a locking protrusion protruding from a lower surface of the first rib wall; the second member has a flat plate portion that is abutted against the back surface side of the first member while facing the lower surface of the first rib wall, and a locking recess that is located on the tip side of the flat plate portion and in which the locking protrusion is locked, The locking protrusion has a neck portion inclined from the lower surface of the first rib wall toward one side in the front-rear direction of the flat plate portion, and a head portion protruding from a tip side of the neck portion toward both sides in the width direction, The locking recess has a slit portion that cuts out the tip side of the flat plate portion in the thickness direction, a pair of first abutment portions that are located on both sides of the slit portion in the width direction and at the edge portion on the lower end side of the slit portion and abut against the tip side of the neck portion, and a pair of second abutment portions that are located on both sides of the slit portion in the width direction and at the edge portion on the upper end side of the slit portion and abut against the base side of the neck portion. [2] The slit portion has a first portion whose diameter is narrower in the width direction than the head portion, and a second portion whose width gradually increases from the first portion toward the tip of the flat plate portion, the pair of first abutment portions are provided to protrude from the first portion in a diameter-reducing direction, The vehicle lamp according to [1], wherein the pair of second abutment portions are provided so as to protrude in a diameter-reducing direction from the boundary between the first portion and the second portion. [3] The vehicle lamp according to [1], further comprising a connecting portion that connects the locking protrusion and the rear side of the first member. [4] The first member is an extension, The vehicle lamp according to [1], wherein the second member is a plate material attached along the lower edge of the opening from the rear side of the extension. [Effects of the Invention]

[0008] As described above, according to the present invention, a vehicle lamp is provided which has an improved design appearance and is equipped with a structure that allows the second member to be stably attached to the first member. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a front view of a vehicle lamp according to an embodiment of the present invention; [Figure 2] 2 is a perspective view of a mounting portion between an extension and a heat insulating plate provided in the vehicle lamp shown in FIG. 1, as viewed from the front side. FIG. [Figure 3] 2 is a perspective view of a mounting portion between an extension and a heat insulating plate provided in the vehicle lamp shown in FIG. 1, seen from the rear side. FIG. [Figure 4] FIG. 2 is a perspective view of the mounting portion as seen from below. [Figure 5] FIG. 2 is a cross-sectional perspective view of the mounting portion as seen from diagonally below. [Figure 6] 6 is a perspective side view of the mounting portion shown in FIG. 5 as seen from the side. [Figure 7] 7 is a cross-sectional view of the attachment portion taken along line AA shown in FIG. 6. [Figure 8] FIG. 10 is a perspective view of a locking protrusion that constitutes the mounting portion, as viewed from below. [Figure 9] FIG. 10 is a perspective view of a locking recess that constitutes the mounting portion, as viewed from below. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings used in the following description, the dimensions of the components may be shown at different scales to make them easier to see, and the dimensional ratios of the components may not necessarily be the same as in reality.

[0011] As one embodiment of the present invention, a vehicle lamp 1 shown in, for example, FIGS. 1 to 9 will be described.

[0012] FIG. 1 is a front view of the vehicle lamp 1. FIG. 2 is a perspective view of the mounting portion 4 between the extension 2 and the heat insulating plate 3 provided in the vehicle lamp 1, as seen from the front side. FIG. 3 is a perspective view of the mounting portion 4 between the extension 2 and the heat insulating plate 3 provided in the vehicle lamp 1, as seen from the rear side. FIG. 4 is a perspective view of the mounting portion 4, as seen from below. FIG. 5 is a cross-sectional perspective view of the mounting portion 4, as seen diagonally from below. FIG. 6 is a see-through side view of the mounting portion 4 shown in FIG. 5, as seen from the side. FIG. 7 is a cross-sectional view of the mounting portion 4 taken along line AA shown in FIG. 6. FIG. 8 is a perspective view of the locking protrusion 24 that constitutes the mounting portion 4, as seen from below. FIG. 9 is a perspective view of the locking recess 32 that constitutes the mounting portion 4, as seen from below.

[0013] In addition, in the drawings shown below, an XYZ Cartesian coordinate system is set up, with the X-axis direction representing the front-to-rear direction (length direction) of the vehicle lighting fixture 1, the Y-axis direction representing the left-to-right direction (width direction) of the vehicle lighting fixture 1, and the Z-axis direction representing the up-to-down direction (height direction) of the vehicle lighting fixture 1.

[0014] As shown in Figures 1, 2 and 3, the vehicle lamp 1 of this embodiment has a structure in which it comprises an extension 2 as a first member and an insulating plate 3 as a second member, which are arranged inside the lamp body (not shown).

[0015] Although not shown, the vehicle lamp 1 of this embodiment has a structure in which, in addition to the above-mentioned extension 2 and heat insulating plate 3, components such as a light source, inner lens, reflector, and bracket are arranged inside the lamp body, and these components are attached to the inside of the lamp body.

[0016] The lamp body is composed of a housing with an opening at the front and a transparent outer lens that covers the opening of the housing. The shape of the lamp body can be changed as needed to match the design of the vehicle lamp 1.

[0017] The extension 2 has an opening 2a that exposes the front side of, for example, an inner lens or a reflector, and is arranged to cover the periphery of this opening 2a. The heat insulating plate 3 is attached from the back side of the extension 2 along the lower edge of the opening 2a.

[0018] In this embodiment, a long opening 2a is formed that extends in the vehicle width direction. The heat insulating plate 3 is attached parallel to the vehicle width direction along the lower edge of this opening 2a. Therefore, the vehicle lamp 1 of this embodiment has a design in which the heat insulating plate 3 is visible from the front side of the extension 2 through the opening 2a.

[0019] As shown in FIGS. 2 to 7, the vehicle lamp 1 of this embodiment includes an attachment portion 4 for attaching a heat insulating plate 3, which is a second member, to an extension 2, which is a first member.

[0020] In the vehicle lamp 1 of this embodiment, as shown in the boxed area B in FIGS. 2 and 3, a plurality of mounting portions 4 are provided lined up in the vehicle width direction along the lower edge of the opening 2a.

[0021] Specifically, in order to attach the heat insulating plate 3 to the back side of the extension 2, the extension 2 has, as shown in Figures 4 to 8, a first rib wall 21 protruding toward the back side from a position along the lower edge of the opening 2a, a second rib wall 22 protruding toward the back side from a position opposite the lower surface of the first rib wall 21, and a groove portion 23 formed between the first rib wall 21 and the second rib wall 22. On the other hand, the heat insulating plate 3 has a flat plate portion 31 that abuts against the back side of the extension 2 when inserted into the groove portion 23 from the back side of the extension 2, as shown in Figures 4 to 7 and 9.

[0022] The first rib wall 21 is provided extending in the vehicle width direction along the lower edge of the opening 2a. The second rib wall 22 is provided extending in the vehicle width direction parallel to the first rib wall 21. The groove portion 23 is provided extending in the vehicle width direction between the first rib wall 21 and the second rib wall 22. The flat plate portion 31 is located on the tip side of the flat heat insulating plate 3 and is provided extending in the vehicle width direction.

[0023] In this embodiment, the flat plate portion 31 is configured to be inserted into the groove portion 23, but the present invention is not necessarily limited to this configuration, and the second rib wall 22 may be omitted, and the flat plate portion 31 may abut against the back side of the extension 2 while facing the lower surface of the first rib wall 21. Furthermore, when the flat plate portion 31 abuts against the back side of the extension 2, the tip of the flat plate portion 31 does not necessarily need to abut against the back side of the extension 2, as long as it faces the back side of the extension 2.

[0024] As shown in Figures 4 to 9, the vehicle lamp 1 of this embodiment has a locking recess 32 provided on the tip side of the flat plate portion 31, a locking protrusion 24 protruding from the underside of the first rib wall 21 and locked in the locking recess 32, and a connecting portion 25 connecting the locking protrusion 24 and the back side of the extension 2.

[0025] As shown in Figures 4 to 8, the locking protrusion 24 has a neck portion 24a that is inclined from the underside of the first rib wall 21 toward one side (rear in this embodiment) in the insertion direction (front-to-back direction in this embodiment) of the flat plate portion 31, and a head portion 24b that protrudes from the tip side of the neck portion 24a toward both sides in the width direction.

[0026] The neck portion 24a forms a narrowed portion in the width direction between the lower surface of the first rib wall 21 and the head portion 24b. The head portion 24b has a shape that is slightly oval in the width direction in a plan view.

[0027] The connecting portion 25 is thinner than the neck portion 24a, and connects the center of the front side of the neck portion 24a and the head portion 24b to the rear side of the extension 2 in a straight line.

[0028] Furthermore, a notch 26 that divides the second rib wall 22 is provided at a position facing the locking protrusion 24. As a result, the locking protrusion 24 is provided to protrude inward of the notch 26.

[0029] The neck portion 24a is not limited to a shape that slopes rearward from the lower surface of the first rib wall 21, but may also have a shape that slopes forward from the lower surface of the first rib wall 21.

[0030] As shown in Figures 4 to 7 and 9, the locking recess 32 has a slit portion 32a that cuts out the flat plate portion 31 from the tip side of the flat plate portion 31 in the thickness direction (vertical direction in this embodiment), a pair of first abutment portions 32b that abut against the tip side of the neck portion 24a at the lower edge portion of the slit portion 32a, and a pair of second abutment portions 32c that abut against the base end side of the neck portion 24a at the upper edge portion of the slit portion 32a.

[0031] The slit portion 32a has a first portion 32d that is narrower in the width direction than the head portion 24b to match the shape of the neck portion 24a, and a second portion 32e that gradually widens in width from the first portion toward the tip of the flat portion 31.

[0032] The pair of first abutment portions 32b are located on both sides of the slit portion 32a in the width direction and protrude slightly from the first portion 32d in the diameter-reducing direction. The pair of second abutment portions 32c are located on both sides of the slit portion 32a in the width direction and protrude slightly from the boundary S between the first portion 32d and the second portion 32e in the diameter-reducing direction. The locking recesses 32 have the same shape in the thickness direction of the flat plate portion 31.

[0033] 4 to 7, in the vehicle lamp 1 of this embodiment having the above-described configuration, the flat plate portion 31 of the heat insulating plate 3 is inserted into the groove portion 23 of the extension 2 from the rear side, and the locking protrusions 24 on the extension 2 side are locked into the locking recesses 32 on the heat insulating plate 3 side. This makes it possible to attach the heat insulating plate 3 to the extension 2.

[0034] In the vehicle lamp 1 of this embodiment, as shown in Figure 2, when the insulating plate 3 is attached to the extension 2, the portion where the locking protrusion 24 is locked into the locking recess 32 is located below the first rib wall 21, making it possible to make this portion invisible from the opening 2a of the extension 2.

[0035] As a result, in the vehicle lamp 1 of this embodiment, even if the design is such that the insulating plate 3 is visible from the front side of the extension 2 through the opening 2a, it is possible to improve the design appearance from the front side of the extension 2.

[0036] Furthermore, in the vehicle lamp 1 of this embodiment, as shown in FIG. 6, when the locking protrusion 24 is locked in the above-mentioned locking recess 32, the tip side of the neck portion 24a is locked against the lower edge portion of the slit portion 32a by the pair of first abutment portions 32b, and the base side of the neck portion 24a is locked against the upper edge portion of the slit portion 32a by the pair of second abutment portions 32c.

[0037] As a result, in the vehicle lighting fixture 1 of this embodiment, the position of the locking protrusion 24 relative to the locking recess 32 in the left-right, front-rear and up-down directions is regulated, reducing rattling in these three directions and making it possible to stably attach the insulation plate 3 to the extension 2.

[0038] The present invention is not necessarily limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0039] For example, the vehicle lighting fixture to which the present invention is applied is not necessarily limited to a configuration in which the second member, the insulating plate 3, is attached to the first member, the extension 2, described above, and the present invention can be widely applied to a configuration in which a second member is attached to a first member arranged within the lighting body.

[0040] The present invention can also be applied to both front vehicle lighting fixtures such as headlamps and rear vehicle lighting fixtures such as rear combination lamps. [Explanation of symbols]

[0041] REFERENCE SIGNS LIST 1...vehicle lamp 2...extension (first member) 2a...opening 3...heat insulating plate (second member) 4...mounting portion 21...first rib wall 22...second rib wall 23...groove portion 24...engaging protrusion 24a...neck portion 24b...head portion 25...connecting portion 26...notch portion 31...flat plate portion 32...engaging recess 32a...slit portion 32b...first abutment portion 32c...second abutment portion 32d...first portion 32e...second portion

Claims

1. A vehicle lamp having a structure in which at least a first member and a second member are disposed inside a lamp body formed of a housing having an opening at the front and an outer lens covering the opening of the housing, and the second member is attached to the first member, the first member has an opening, a first rib wall protruding rearward from a rear surface side at a position along a lower edge of the opening, and a locking protrusion protruding from a lower surface of the first rib wall; the second member has a flat plate portion that is abutted against the back surface side of the first member while facing the lower surface of the first rib wall, and a locking recess portion that is located on the tip side of the flat plate portion and in which the locking protrusion portion is locked, the locking protrusion has a neck portion inclined from the lower surface of the first rib wall toward one side in the front-rear direction of the flat plate portion, and a head portion protruding from a tip side of the neck portion toward both sides in the width direction, The locking recess has a slit portion that cuts out the tip side of the flat plate portion in the thickness direction, a pair of first abutment portions that are located on both sides of the slit portion in the width direction and at the edge portion on the lower end side of the slit portion and abut against the tip side of the neck portion, and a pair of second abutment portions that are located on both sides of the slit portion in the width direction and at the edge portion on the upper end side of the slit portion and abut against the base side of the neck portion.

2. the slit portion has a first portion whose diameter is narrower in the width direction than the head portion, and a second portion whose width gradually increases from the first portion toward the tip of the flat plate portion, the pair of first abutment portions are provided to protrude from the first portion in a diameter-reducing direction, 2. The vehicular lamp according to claim 1, wherein the pair of second contact portions are provided so as to protrude in a diameter-reducing direction from a boundary between the first portion and the second portion.

3. 2. The vehicle lamp according to claim 1, further comprising a connecting portion that connects the locking protrusion and the rear surface side of the first member.

4. the first member is an extension, 2. The vehicle lamp according to claim 1, wherein the second member is a plate member attached to the rear surface of the extension along a lower edge of the opening.

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