JP5832841B2 - Vehicle lighting - Google Patents

Description

  The present invention relates to a vehicular lamp in which a bulb is exchangeably accommodated in a lamp chamber.

  Vehicle lamps such as tail lamps and turn signal lamps provided on vehicles such as motorcycles are provided by fitting convex portions projecting on the outer peripheral edge of the outer lens into concave grooves formed on the peripheral edge of the opening of the housing. And an outer lens are joined and integrated, and a bulb is exchangeably accommodated in a lamp chamber defined by the two (see, for example, Patent Document 1).

  In such a vehicular lamp, when the bulb that is a light source has been cut and needs to be replaced, it is necessary to remove the vehicular lamp from the vehicle body, which is cumbersome and time consuming. there were.

  Therefore, in Patent Document 2, a harness cut-in portion (X-shaped slit) for electrically connecting a harness to the interior of a vehicle body is provided in a lamp packing sandwiched between a housing of a vehicle lamp and a vehicle body panel, There has been proposed a configuration in which a frame-shaped cut portion (perforation) having a size allowing the valve to enter and exit is formed. According to this, the harness of the vehicle lamp can be introduced into the vehicle body or the bulb can be easily replaced without removing the vehicle lamp from the vehicle body.

JP 2005-239004 A JP 2005-267925 A

  However, according to the configuration proposed in Patent Document 2, when exchanging the bulb, the frame-shaped cut portion (perforation) formed in the lamp packing is cut out, and after exchanging the bulb, the frame shape is cut out. There is a problem that it is necessary to fit the cut portion into the lamp packing, and the work is troublesome.

  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 that can position the outer lens with respect to the housing with high accuracy and can easily replace the bulb. There is to do.

To achieve the above object, a first aspect of the present invention, and the housing and the outer lens by being fitted convex portion projecting from the outer periphery of the outer lens in the concave groove formed in the periphery of the opening of the housing integrally joined, in the vehicle lamp comprising replaceably accommodating the valve a lamp chamber defined by both,
The outer lens is held so as to be movable up and down and left and right with respect to the housing, and an engaging claw and an engaging protrusion project from the upper end and lower end of the outer lens to form a groove in the housing. An engagement hole that is long in the left-right direction is formed in the upper peripheral edge and engages with the engagement protrusion of the outer lens on the inner surface of the lower peripheral edge forming the concave groove of the housing. First and second engaging grooves having different depths are formed to be spaced apart in the left-right direction, and the engaging projection of the outer lens is fitted into the first engaging groove on the shallow side of the housing. In this state, the engaging claw of the outer lens is engaged with the engaging hole of the housing, and the engaging projection of the outer lens is engaged with the second engaging groove on the deep side of the housing. Then, the outer lens Characterized by being configured such that the engagement with the engaging hole of the nail of the housing is released.

The invention according to claim 2 is characterized in that, in the invention according to claim 1 , the first engaging groove on the shallow side of the housing is formed between two protrusions having different heights.

  According to the present invention, when the engagement projection of the outer lens is fitted in the first engagement groove on the shallow side of the housing, the engagement claw of the outer lens is engaged with the engagement hole of the housing. By configuring so, the outer lens can be securely fixed to the housing in a state of being positioned with high accuracy with respect to the housing. Further, in a state where the engagement projection of the outer lens is engaged with the second engagement groove on the deep side of the housing, the engagement of the engagement claw of the outer lens with the engagement hole of the housing is released. With such a configuration, the bulb can be easily replaced by removing the outer lens from 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. FIGS. 3A and 3B are diagrams illustrating a state when the outer lens is in a fixed state, where FIG. 2A is an enlarged detailed view of a portion B in FIG. 2, FIG. 2B is a cross-sectional view taken along line DD in FIG. FIG. 4C is an enlarged detail view of a C portion, and FIG. FIGS. 3A and 3B are views showing a state in the middle of removing the outer lens, wherein FIG. 2A is an enlarged detail view of a portion B in FIG. 2, FIG. C part enlarged detail drawing, (d) is the E'-E 'sectional view taken on the line of (c). FIGS. 3A and 3B are diagrams illustrating a state in which the outer lens is not fixed to the housing, in which FIG. 2A is an enlarged detailed view of a portion B in FIG. 2, and FIG. ) Is an enlarged detail view of a portion C in FIG. 2, and FIG.

  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, and FIG. 3 is a view showing a state when an outer lens is in a fixed state. 2B is an enlarged detailed view of section B, FIG. 2B is a sectional view taken along line DD of FIG. 2A, FIG. 2C is an enlarged detail view of section C of FIG. 2, and FIG. FIGS. 4 and 4 are views showing a state in the middle of removing the outer lens, in which FIG. 4A is an enlarged detailed view of a portion B in FIG. 2, FIG. 4B is a cross-sectional view taken along line D′-D ′ in FIG. ) Is an enlarged detail view of a portion C in FIG. 2, (d) is a cross-sectional view taken along line E'-E 'in (c), and FIG. 2A is an enlarged detailed view of a portion B in FIG. 2, FIG. 2B is a sectional view taken along the line D ″ -D ″ in FIG. 2A, FIG. 2C is an enlarged detailed view of a portion C in FIG. It is E "-E" line sectional drawing.

  A vehicle lamp 1 shown in FIGS. 1 and 2 is a turn signal lamp provided in a motorcycle, and as shown in FIG. 2, a lamp chamber 4 defined by a housing 2 and an outer lens 3 covering an opening thereof. A bulb (not shown) that is a light source is housed in a replaceable manner.

  The housing 2 is integrally formed of a light-impermeable resin, and a concave groove 2a is formed on the periphery of the opening as shown in FIG. Further, screw bosses 2b are integrally projected at two locations on the left and right sides of the rear surface of the housing 2.

  The outer lens 3 is integrally formed of a light-transmitting resin, and a convex portion 3a that is fitted in the concave groove 2a of the housing 2 is integrally formed on the outer peripheral edge thereof. A hook-like engagement claw 3b is integrally projected at the upper end of the outer lens 3, and a hemispherical engagement protrusion 3c (see FIG. 3D) is projected at the lower end. Yes. Also, bottomed cylindrical bosses 3d projecting toward the housing 2 are integrally projected at two locations on the left and right sides of the outer lens 3 (two locations corresponding to the screw bosses 2b of the housing). By screwing screws 5 inserted into the bosses 3 d into the screw bosses 2 b of the housing 2, the left and right portions are fastened to the housing 2.

  By the way, as shown in FIGS. 3A and 3B, the upper part of the outer peripheral edge forming the concave groove 2 a of the housing 2 is long in the left-right direction for engaging the engaging claw 3 b of the outer lens 3. An engagement hole 2c is formed. Further, as shown in FIGS. 3C and 3D, the depth of engagement of the engaging protrusion 3c of the outer lens 3 on the inner surface of the lower portion of the outer peripheral edge forming the concave groove 2a of the housing 2 is different. The first and second engagement grooves 2d and 2e are formed to be separated in the left-right direction. Here, the first engaging groove 2d on the shallow side is formed between the left and right hemispherical protrusions 2f and 2g having different heights, and the first on the deep side beside the first engaging groove 2d. Two engaging grooves 2e are formed.

  Thus, in the vehicular lamp 1 configured as described above, the aura lens 3 is movable in the vertical and horizontal directions with respect to the housing 2 (the convex portion 3a of the outer lens 3 is in the fitting groove 2a of the housing 2). In the state where the outer lens 3 is fixed to the housing 2, the engaging projection 3 c of the outer lens 3 is deep in the housing 2, as shown in FIG. 3 (d). The engaging claw 3 b of the outer lens 3 is engaged with the engaging hole 2 c of the housing 2. At this time, the first engagement groove 2d of the housing 2 functions as a positioning groove, and the engagement projection 3c of the outer lens 3 is engaged with the first engagement groove 2d, whereby the outer lens 3 is moved to the housing 2. The outer lens 3 is securely fixed to the housing 2 when the engaging claw 3b of the outer lens 3 is engaged with the engaging hole 2c of the housing 2 (see FIG. 3). a), see (b)). As described above, the outer lens 3 is fastened to the housing 2 with two screws 5 on the left and right sides (see FIGS. 1 and 2).

  Next, how to replace a valve (not shown) accommodated in the lamp chamber 4 will be described with reference to FIGS.

  When exchanging the bulb, the outer lens 3 is slid laterally from the fixed state shown in FIG. 3 to release the engagement between the engagement claw 3 b of the outer lens 3 and the engagement hole 2 c of the housing 2. Needless to say, before the outer lens 3 is slid, the fastening of the outer lens 3 to the housing 2 by the screw 5 is released.

  That is, when the outer lens 3 is slid in the direction of the arrows in FIGS. 4B and 4D from the state shown in FIG. 3, the engaging protrusion 3c of the outer lens 3 is disengaged from the first engaging groove 2d of the housing 2. Then, it moves over the lower protrusion 2g of the housing 2 and moves to a position above the second engagement groove 2e on the deeper side of the housing 2 as shown in FIG. At this time, the engaging claw 3 b of the outer lens 3 is still engaged with the engaging hole 2 c of the housing 2.

  Next, when the outer lens 3 in the state shown in FIG. 4 is dropped by its own weight, the engagement protrusion 3c of the outer lens 3 becomes the second engagement groove 2e of the housing 2 as shown in FIGS. 5 (c) and 5 (d). And the engaging claw 3b of the outer lens 3 is disengaged from the engaging hole 2c of the housing 2, and the engagement between the two is released. As described above, when the engagement between the engagement claw 3b of the outer lens 3 and the engagement hole 3c of the housing 2 is released, the outer lens 3 becomes free, so that the outer lens 3 is pulled out to the front side, and the housing 2 Thus, the bulb can be easily replaced without removing the entire vehicular lamp 1 from the vehicle body.

  After the outer lens 3 is removed from the hiding 2 and the valve is replaced in the above manner, the outer lens 3 is attached to the housing 2 in the reverse order and the both are fastened with the screw 5 to complete a series of valve replacement operations. To do.

  As described above, according to the vehicular lamp 1 according to the present invention, in the state where the engagement protrusion 3c of the outer lens 3 is engaged with the first engagement groove 2d on the shallow side of the housing 2, Since the engaging claw 3 b of the outer lens 3 is configured to engage with the engaging hole 2 c of the housing 2, the outer lens 3 can be securely fixed to the housing 2 in a state of being positioned with high accuracy with respect to the housing 2. The effect that it can be obtained.

  Further, in a state where the engagement protrusion 3 c of the outer lens 3 is fitted in the second engagement groove 2 e on the deep side of the housing 2, the engagement hole 2 c of the housing 2 of the engagement claw 3 b of the outer lens 3. Therefore, it is possible to easily replace the valve by removing the outer lens 3 from the housing 2.

DESCRIPTION OF SYMBOLS 1 Vehicle lamp 2 Housing 2a Groove of housing 2b Screw boss of housing 2c Engagement hole of housing 2d First engagement groove of housing 2e Second engagement groove of housing 2f, 2g Projection of housing 3 Outer lens 3a Outer lens Convex 3b Outer lens engagement claw 3c Outer lens engagement protrusion 3d Outer lens boss 4 Lamp chamber 5 Screw

Claims (2)

The housing and the outer lens is joined integrally by being fitted convex portion projecting from the outer periphery of the outer lens to the formed groove in the periphery of the opening of the housing, a valve in a lamp chamber defined by both In a vehicle lamp comprising a replaceable housing,
The outer lens is held so as to be movable up and down and left and right with respect to the housing, and an engaging claw and an engaging protrusion project from the upper end and lower end of the outer lens to form a groove in the housing. An engagement hole that is long in the left-right direction is formed in the upper peripheral edge and engages with the engagement protrusion of the outer lens on the inner surface of the lower peripheral edge forming the concave groove of the housing. First and second engaging grooves having different depths are formed to be spaced apart in the left-right direction, and the engaging projection of the outer lens is fitted into the first engaging groove on the shallow side of the housing. In this state, the engaging claw of the outer lens is engaged with the engaging hole of the housing, and the engaging projection of the outer lens is engaged with the second engaging groove on the deep side of the housing. Then, the outer lens Vehicle lamp, characterized by being configured so that the engagement between the engaging hole of the nail of the housing is released.
The vehicular lamp according to claim 1, characterized in that formed between the first engaging groove heights two different projections of the shallow side of the depth of the housing.

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