JP5932585B2 - Vehicle lighting - Google Patents

Description

  The present invention relates to a vehicular lamp in which a reflector is detachably attached to a housing.

  In a vehicular lamp, in which at least a bulb and a reflector that reflects light from the bulb are housed in a lamp chamber defined by a housing and a lens that covers the opening, and the reflector is detachably attached to the housing. Positioning at the time of mounting is difficult, and there is a problem that the reflector vibrates and the light distribution is shaken while the vehicle is traveling.

  Therefore, in Patent Document 1, the upper and lower side walls or the left and right side walls protrude from the side edges of the both sides in the direction orthogonal to the direction connecting the both ends supported by the housing to the rear, and The structure which forms a contact part or a contacted part in a side wall or a housing so that a side wall and a housing contact | abut is proposed. According to this, since the reflector is supported in a cross direction with respect to the housing, the reflector does not move in the housing, and the light distribution is prevented from being shaken, thereby improving the visibility.

JP-A-5-020907

  However, in the configuration proposed in Patent Document 1, although the reflector is prevented from vibrating, there is a problem in that the positioning of the reflector with respect to the housing at the time of mounting is not performed with high accuracy and the mounting workability is poor.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicular lamp capable of positioning a reflector with respect to a housing with high accuracy and improving its mounting workability. .

  To achieve the above object, according to the first aspect of the present invention, at least a bulb and a reflector for reflecting light from the bulb are accommodated in a lamp chamber defined by a lens that covers a housing and an opening of the housing. In a vehicular lamp that is detachably attached to a housing, a rectangular frame is formed around a valve mounting hole on a front surface of the housing, and a rib that crosses at least one pair of adjacent sides of the rectangular frame is formed on a rear surface of the reflector. And the reflector is positioned with respect to the housing by engaging sides of the rectangular frame with engagement grooves formed in the ribs.

  According to a second aspect of the present invention, in the first aspect of the invention, a pair of engagement ribs that are bent at an acute angle is provided on a diagonal line on the back surface of the reflector, and the engagement ribs are provided on a diagonal line on the front surface of the housing. It is characterized by being engaged with a pair of engaging grooves formed in.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, convex portions are provided at a plurality of locations on the front surface of the housing, and the rear peripheral edge of the reflector is brought into contact with the convex portions. And

  According to the first aspect of the present invention, a rectangular frame is formed around the valve insertion hole on the front surface of the housing, and at least one pair of adjacent sides of the rectangular frame is formed on the back surface of the reflector, Since the reflector is positioned with respect to the housing by engaging the side of the rectangular frame with the engagement groove formed in the rib, the reflector is positioned with high accuracy in the vertical and horizontal directions with respect to the housing. This improves the workability of attaching the reflector to the housing. Also, the reflector can be prevented from shaking and falling off.

  According to the second aspect of the present invention, the pair of engaging ribs protruding on the diagonal line on the back surface of the reflector is engaged with the pair of engaging grooves formed on the diagonal line on the front surface of the housing. The positioning in the vertical and horizontal directions with respect to the housing can be performed with higher accuracy.

  According to the third aspect of the present invention, the reflector can be accurately positioned in the front-rear direction with respect to the housing by causing the rear peripheral edge of the reflector to come into contact with the convex portions protruding from the front of the housing. .

1 is a front view of a vehicular lamp according to the present invention. It is the sectional view on the AA line of FIG. It is a front view which removes and shows the lens of the vehicular lamp concerning the present invention. It is a figure which shows the front of the housing of the vehicle lamp which concerns on this invention, and the back surface of a reflector. It is the BB sectional view taken on the line of FIG. It is CC sectional view taken on the line of FIG. It is the DD sectional view taken on the line of FIG. FIG. 5 is a cross-sectional view taken along line EE in FIG. 4. FIG. 5 is a cross-sectional view taken along the line FF in FIG. 4.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is a front view of a vehicular lamp according to the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is a front view of the vehicular lamp with a lens removed, and FIG. FIG. 5 is a cross-sectional view taken along line BB in FIG. 4, FIG. 6 is a cross-sectional view taken along line CC in FIG. 4, and FIG. 7 is a cross-sectional view taken along line DD in FIG. 8 is a cross-sectional view taken along line EE in FIG. 4, and FIG. 9 is a cross-sectional view taken along line FF in FIG.

  A vehicular lamp 1 according to the present embodiment is a turn signal lamp, and is a light source in a lamp chamber 4 defined by a housing 2 and a lens 3 covering its opening, as shown in FIG. The bulb 5 and a reflector 6 that reflects light emitted from the bulb 5 are accommodated, and the reflector 6 is detachably attached to the housing 2.

  The housing 2 is integrally formed of a light-impermeable resin, and a seal groove 2a is formed on the entire periphery thereof. A valve mounting hole 2b is formed in the housing 2, and a socket 7 holding the valve 5 is inserted into the valve mounting hole 2b of the housing 2 as shown in FIG. The bulb 5 passes through a circular valve insertion hole 6 a formed in the reflector 6 and faces the lamp chamber 4.

  The lens 3 is integrally formed of a light transmissive resin, and a leg portion 3a formed on the periphery thereof is inserted into the seal groove 2a of the housing 2, and the insertion portion is an adhesive such as hot melt. The lens 3 is fixed to the housing 2 by being bonded by the cover 8 and covers the opening of the housing 2.

  The reflector 6 forms a reflective surface whose inner surface is curved in a concave curved surface, and the valve insertion hole 6a is formed at the center of the reflective surface.

  As shown in FIG. 4, a rectangular frame 2A is projected around the valve mounting hole 2b on the front surface of the housing 2 (the surface on which the reflector 6 is mounted), and the rectangular frame 2A is sandwiched between them. The hooks 2c are integrally formed on the upper and lower sides. Engaging grooves 2d (see FIGS. 5, 7 and 8) 2d which are bent at acute angles in a dogleg shape are formed at two diagonal positions passing through the center of the valve mounting hole 2b on the front surface of the housing 2. Yes.

  Further, as shown in FIG. 4, convex portions 2 e are integrally projected at a plurality of locations (five locations in the illustrated example) corresponding to the outer peripheral edge of the reflector 6 on the front surface of the housing 2.

  On the other hand, as shown in FIG. 4, around the valve insertion hole 6a on the back surface (attachment surface to the housing 2) of the reflector 6, the shape is the same as the rectangular frame 2A of the housing 2, and from the rectangular frame 2A A rectangular frame 6A that is slightly larger is formed, and at least one pair of adjacent sides of the rectangular frame 2A of the housing 2 (in this embodiment, three sides of the lower side and the left and right sides) are formed inside the rectangular frame 6A. ) Are integrally formed, and an engaging groove 6b1 is formed in each rib 6b as shown in FIG. Further, at two diagonal positions (two positions corresponding to the engagement groove 2d of the housing 2) passing through the center of the valve insertion hole 6a of the reflector 6, engagement ribs 6c (see FIG. 5, FIG. 7 and FIG. 8) are integrally formed. Further, as shown in FIG. 2, engaging claws 6d are integrally formed on the top and bottom of the back surface of the reflector 6 (up and down facing the hook 2c of the housing 2).

  Thus, when the reflector 6 is pushed into the housing 2 side with its back surface aligned with the front surface of the housing 2, the engaging claws 6 d formed above and below the back surface of the reflector 6 are formed above and below the front surface of the housing 2. The hook 2c is engaged and the reflector 6 is easily attached to the housing 2 with one touch. At the same time, the reflector 6 is positioned with respect to the housing 2 with high accuracy as follows.

  That is, as shown in FIG. 9, a rectangular frame 2A formed on the front surface of the housing 2 in the engagement grooves 6b1 formed on a plurality of (four in the present embodiment) ribs 6b formed on the back surface of the reflector 6. Since the at least one pair of adjacent sides (the lower side and the left and right side sides in this embodiment) are engaged, the reflector 6 is positioned with high accuracy in the vertical and horizontal directions with respect to the housing 2. This improves the workability of attaching the reflector 6 to the housing 2.

  Further, as shown in FIGS. 5, 7, and 8, a pair of engagement ribs 6 c projecting diagonally on the back surface of the reflector 6 are formed on the diagonal line on the front surface of the housing 2. Since the respective engaging portions 2d are engaged, the positioning structure of the reflector 6 with respect to the housing 2 in the vertical and horizontal directions is performed with higher accuracy. And the reflector 6 is prevented from shaking and falling off.

  Furthermore, in the present embodiment, as shown in FIG. 6, the rear peripheral edge of the reflector 6 is brought into contact with the convex portions 2 e protruding at a plurality of locations on the front surface of the housing 2. The reflector 6 is accurately positioned with respect to the housing 2 in the front-rear direction (vertical direction in FIG. 6).

  In the above, the embodiment in which the present invention is applied to the turn signal lamp has been described. However, the present invention is similarly applied to any other vehicle lamp in which the reflector is detachably attached to the housing. Of course, it is applicable.

DESCRIPTION OF SYMBOLS 1 Vehicle lamp 2 Housing 2A Housing rectangular frame 2a Housing sealing groove 2b Housing valve mounting hole 2c Housing hook 2d Housing engaging groove 2e Housing convex part 3 Lens 3a Lens leg part 4 Lamp chamber 5 Valve 6 Reflector 6A Reflector rectangular frame 6a Reflector valve insertion hole 6b Reflector rib 6b1 Rib engagement groove 6c Reflector engagement rib 6d Reflector engagement groove 7 Socket 8 Adhesive

Claims (3)

In a vehicle lamp comprising a housing and a lamp chamber defined by a lens that covers the opening thereof, at least a bulb and a reflector that reflects light from the bulb, and the reflector is detachably attached to the housing.
A rectangular frame is formed around a valve mounting hole on the front surface of the housing, and at least one set of adjacent sides of the rectangular frame is formed on the back surface of the reflector, and an engagement groove formed in the rib. The vehicle lamp according to claim 1, wherein the reflector is positioned with respect to the housing by engaging sides of the rectangular frame.   A pair of engagement ribs that are bent at an acute angle on the diagonal line on the back surface of the reflector are projected, and the engagement ribs are engaged with a pair of engagement grooves formed on the diagonal line on the front surface of the housing. The vehicular lamp according to claim 1, characterized in that: The vehicular lamp according to claim 1, wherein convex portions are provided at a plurality of locations on the front surface of the housing, and a rear peripheral edge of the reflector is brought into contact with the convex portions.

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