JP6519346B2 - Vehicle lamp - Google Patents

Description

  The present invention relates to a vehicle lamp in which an outer lens is fitted in a lamp housing.

  In some vehicle lamps used in vehicles, a lamp chamber is configured by covering an opening of a lamp housing with an outer lens, and a light source is provided in the lamp chamber.

  Among such vehicle lamps, there is a configuration in which an outer lens is fitted into an opening of a lamp housing via a seal member having a waterproof function (see, for example, Patent Document 1). In the vehicle lamp, after the outer lens is fitted to the lamp housing with the seal member interposed, the lamp housing and the outer lens are fixed by the screw member. In this vehicle lamp, the water tightness between the lamp housing and the outer lens can be secured, and the entry of water into the lamp chamber can be prevented.

JP, 2012-201180, A

  Here, in the above-described vehicle lamp, when a force to separate the lamp housing and the outer lens from each other acts between the insertion of the outer lens into the lamp housing and the fixing of the outer lens by the screw member, the seal member There is a risk that the space between the lamp housing and the outer lens can not be properly filled. Then, in the vehicle lamp, it becomes difficult to ensure the water tightness by the seal member, and there is a possibility that the infiltration of water into the lamp chamber can not be prevented.

  The present invention has been made in view of the above-described circumstances, and a vehicle lamp capable of appropriately filling the space between the lamp housing and the outer lens with the seal member even if a pulling-off force acts on the lamp housing and the outer lens. Intended to provide.

  The vehicle lamp according to claim 1 comprises a lamp housing having an opening at one end, an outer lens fitted in the opening through a seal member, and a housing side screwing portion provided on the lamp housing And a screw member provided on the outer lens, and a screw member for fixing the housing screw portion and the lens screw portion, wherein the screw member is provided for the lamp housing. The housing-side screwing portion and the lens-side screwing portion are fixed in a fitting direction in which the outer lens is fitted, and the housing is screwed into the housing-side screwing portion and the lens-side screwing portion. In order to prevent the lens from being separated from the lamp housing, a separation preventing mechanism is provided which causes the projection claws to interfere with the receiving portion in the insertion direction, and the separation is prevented. Structure is characterized by being arranged side by side in the screw member and the fitting direction.

  According to the vehicle lamp of the present invention, even if a pulling-off force acts between the lamp housing and the outer lens, the space between them can be appropriately filled with the seal member.

It is explanatory drawing which shows a mode that the vehicle lamp 10 of the Example which concerns on one Embodiment of the vehicle lamp which concerns on this invention was mounted in the vehicle 50. FIG. FIG. 3 is an explanatory view showing the vehicle lamp 10 as viewed from the front side in the front-rear direction. It is explanatory drawing which shows a mode that the lamp 10 for vehicles was seen from the up-down direction upper side. FIG. 3 is an explanatory view showing the vehicular lamp 10 as viewed from the right side in the left-right direction (the outer side of the vehicle). It is explanatory drawing which shows the mode of the cross section obtained along the I-I line shown in FIG. FIG. 2 is an explanatory view showing the vehicle lamp 10 as viewed from the front and rear direction rear side. It is an explanatory view showing a situation of the section similar to Drawing 5 at the time of assembling lamp 10 for vehicles, and showing a situation where seal leg 31 is inserted in seal slot 24 which provided seal member 35, (b Shows a state where the seal leg 31 is inserted into the seal groove 24 (the seal member 35 thereof), and (c) shows the screw 37 on the lens side through the screw insertion hole 27 of the housing side screw 26 A state where it is tightened in the screw fixing hole 33 of the portion 32 is shown. It is explanatory drawing for demonstrating the effect | action of the slip prevention piece 25, (a) shows a mode that it faces a fender panel 52 (its folding | turning side part 52a) at predetermined intervals, (b) is a slip prevention piece 25 shows how the fender panel 25 comes in contact with the folded side 52 a of the fender panel 52. It is an explanatory view for explaining the situation of the assembling process of vehicular lamp 10, (a) shows a situation where outer lens 12 is fitted in lamp housing 11, (b) fits outer lens 12 in lamp housing 11. (C) shows how the lamp housing 11 and the outer lens 12 fitted are transferred from the first mount 56, and (d) shows the lamp housing 11 and the outer lens 12 fitted as the second The state of having been transferred to the installation stand 58 is shown.

  Hereinafter, an embodiment of a vehicle lamp according to the present invention will be described with reference to the drawings.

  A vehicular lamp 10 according to an embodiment as an example of a vehicular lamp according to the present invention will be described with reference to FIGS. 1 to 9. In addition, in order to make an understanding of the effect | action of the slip prevention piece 25 easy in FIG. 8, the structure of the periphery of the slip prevention piece 25 is simplified and shown. Further, in FIG. 9, the lamp housing 11 and the outer lens 12 are shown in a simplified manner in order to facilitate understanding of how the vehicle lamp 10 is assembled.

  As shown in FIG. 1, the vehicular lamp 10 is mounted on a vehicle 50 as a headlight of a car or the like to illuminate the front. The vehicular lamps 10 are provided on the left and right sides (10L, 10R) in pairs at the front end portion of the vehicle 50, and are configured so as to be symmetrical about the left and right. In the following, since the left and right vehicle lamps 10 are symmetrical and substantially equal to each other, the vehicle lamp 10R provided on the right will be described, and the left vehicle lamp 10L will be omitted. It describes as the vehicle lamp 10 and demonstrates the structure. In the following description, in the vehicle 50 to be attached, the front and rear direction (see arrow FB in FIG. 1 etc.), left and right (horizontal) direction (see arrow RL) and vertical (vertical) direction (see arrow UD) are used. . Further, since both vehicle lamps 10 are provided on the left and right sides of the front end portion of the vehicle 50, in the description regarding the left and right direction, the central position side of the vehicle 50 is left and right with reference to the vehicle lamp 10 (center position thereof). It is also referred to as the vehicle inside viewed from the direction, and also referred to as the vehicle outside viewed from the outside of the vehicle 50 in the left and right direction.

  As shown in FIGS. 2 to 4, the vehicular lamp 10 is configured by attaching an outer lens 12 so as to cover the opening 21 of the lamp housing 11 whose front end is opened. In this vehicle lamp 10, the lamp chamber 11 (see FIG. 2) and the inner panel 14 (see FIG. 5) serving as a light source are accommodated by the lamp housing 11 and the outer lens 12 (see FIG. 2 etc.) Form The lamp housing 11 constitutes a mounting portion of the lighting unit 13 and accommodates a lighting drive device for lighting control of the lighting unit. The outer lens 12 covers light while enabling emission of light from the lamp unit 13, the turn lamp unit, and the clearance lamp housed in the lamp housing 11 (light chamber 15).

  The lamp unit 13 is attached to the lamp housing 11 and illuminates the front of the vehicle 50 to improve the driver's visibility and the ease of recognizing the vehicle 50 from the outside. The illumination lamp unit 13 can illuminate the front of the vehicle 50 while switching between low-beam light distribution (low beam) and high-beam light distribution according to the control of the lighting drive device. The lamp unit 13 is attached to the inner panel 14 or the like so that the projection lens can be seen through the opening for the lamp unit provided in the inner panel 14. The inner panel 14 hides a portion other than the illumination portion in the lamp unit 13 and the above-described lighting drive device and the like to enhance the design of the vehicle lamp 10. The design of the inner panel 14 can be further improved by performing silver deposition, aluminum deposition, painting, or the like, and in the present embodiment, aluminum deposition is performed.

  In the vehicle lamp 10, the outer lens 12 is fitted into the lamp housing 11 (the opening 21 thereof) in the fitting direction Di (see FIGS. 7 and 9). In the present embodiment, the fitting direction Di is a direction close to the front-rear direction. In the present embodiment, in the insertion direction Di, the side where the outer lens 12 approaches the lamp housing 11 (the tip end side of the arrow (the side indicated by the triangle)) is referred to as the front side of the insertion direction Di and the opposite side. It is said that the rear side of the insertion direction Di. The vehicle lamp 10, that is, the lamp housing 11 and the outer lens 12 are shaped to wrap around from the front side of the vehicle 50 to the outside of the vehicle in the left and right direction (see FIG. 1). It curves to the rear side and to the vehicle outer side of the left-right direction. Hereinafter, the rear side in the front-rear direction of the lamp housing 11 is referred to as a housing rear end 22, and the rear side in the outer lens 12 is referred to as a lens rear end 23.

  The lamp housing 11 is formed of a material that blocks light transmission, such as a resin material such as PP (polypropylene) or ABS resin (acrylonitrile butadiene styrene resin), and one end is open and the other is closed. It has a hollow shape. In the lamp housing 11, a seal groove 24 is provided in an opening 21 (a peripheral portion thereof) which is an open end (see FIG. 5). As shown in FIG. 5, the seal groove portion 24 is formed by recessing the peripheral portion of the opening 21 in the fitting direction Di (see FIG. 7 etc.), and extends over the entire circumference of the opening 21 (the peripheral portion). Provided. The seal groove portion 24 is sized and sized to receive the seal leg portion 31 of the outer lens 12 while interposing the seal member 35 as described later. As shown in FIG. 6, the lamp housing 11 is provided with a plurality of screw insertion holes 11a, a plurality of hook projections 11b, and a plurality of hook holes 11c. The screw insertion holes 11 a, the hooking projections 11 b and the hooking holes 11 c are used to fix the outer lens 12 to the lamp housing 11.

  Further, in the lamp housing 11, as shown in FIG. 2 to FIG. 5, the displacement prevention piece 25 and the housing side screwing portion 26 are provided at the housing rear end portion 22. The shift prevention piece 25 is formed to project forward from the rear end 22 of the housing in the front-rear direction, and the outer lens 12 is assembled to the lamp housing 11 as described later. It is shaped to wrap around outwards. Therefore, the slip prevention piece 25 partially forms a portion of the vehicle lamp 10 located on the outer side of the vehicle 50 than the outer lens 12 (the lens rear end 23 thereof), and an outer plate of the vehicle 50 described later It becomes a location closest to the fender panel 52 as the member 51 (see FIG. 8 etc.). The shift preventing piece 25 is positioned between the hooking protrusion 11b1 which is one of the hooking protrusions 11b and the housing side screwing portion 26 when viewed in the circumferential direction of the opening 21 (the peripheral portion thereof). Ru. The shift prevention piece 25 is provided adjacent to the housing side screwing portion 26 and the hooking protrusion 11b1 when viewed on a plane orthogonal to the insertion direction Di (see FIG. 6).

  The housing side screwing portion 26 is formed to protrude rearward in the front-rear direction from the housing rear end portion 22 and a part thereof also serves as the outer peripheral wall 24 a of the seal groove portion 24 (see FIG. 5). The housing side screwing portion 26 is provided at a position overlapping the lens side screwing portion 32 of the outer lens 12 described later when the outer lens 12 is assembled to the lamp housing 11 as described later. The housing side screwing portion 26 is located between the shift preventing piece 25 and the hooking hole portion 11c1 which is one of the hooking hole portions 11c when viewed in the circumferential direction of the opening 21 (the peripheral portion thereof). . The housing side screwing portion 26 is provided adjacent to the anti-displacement piece 25 and the hook hole portion 11c1 when viewed on a plane orthogonal to the insertion direction Di (see FIG. 6).

  The housing side screwing portion 26 is provided with a screw insertion hole 27 and a projecting claw portion 28 side by side in the fitting direction Di (see FIG. 5 and the like). The screw insertion hole 27 is provided at the projecting end of the housing side screwing portion 26 and is a hole through which a screw member 37 described later can be inserted in the fitting direction Di. The protruding claw portion 28 is provided on the rear side of the screw insertion hole 27 in the insertion direction Di. The projecting claws 28 are projected outward from an intermediate position in the housing side screwing portion 26 as viewed in the fitting direction Di, and the cross section is formed in a triangular shape (see FIG. 5). The projection claw portion 28 enters the receiving portion 34 of the lens side screwing portion 32 described later, so that the projection side interference surface 28a on the front side of the fitting direction Di is the receiving portion 34 (the receiving side interference surface 34a described later And interference in the insertion direction Di, and the forward movement of the insertion direction Di with respect to the receiving portion 34 is prevented.

  The outer lens 12 is formed of, for example, a member that transmits light such as a light transmitting resin material such as PC resin (polycarbonate resin) or methacrylic resin, and has a hollow shape in which one end is open and the other is closed. Present. In the outer lens 12, the seal leg portion 31 is provided on the peripheral edge portion of the open end (see FIG. 5). As shown in FIG. 5, the seal leg 31 is formed by projecting the peripheral edge of the open end of the outer lens 12 in the fitting direction Di, and is provided over the entire periphery of the peripheral edge. The seal leg portion 31 is sized to be insertable into the seal groove portion 24 of the lamp housing 11 with the seal member 35 described later interposed. As shown in FIG. 6, the outer lens 12 is provided with a plurality of screw fixing holes 12a, a plurality of hooking holes 12b, and a plurality of hooking projections 12c. The screw fixing holes 12a, the hooking holes 12b, and the hooking projections 12c are used to fix the lamp housing 11 to the outer lens 12. Each screw fixing hole 12a is provided so that the axis line coincides with each screw inserting hole 11a, and fastening and fixing of a fixing screw 36 described later is enabled. Each hooking hole 12b is provided corresponding to each hooking projection 11b, and receives the corresponding hooking projection 11b when the outer lens 12 is fitted in the fitting direction Di into the lamp housing 11 as described later. The hooking projection 11b is prevented from coming off by being hooked. Furthermore, each hooking protrusion 12c is provided corresponding to each hooking hole 11c, and enters the corresponding hooking hole 11c when the outer lens 12 is fitted into the lamp housing 11 in the fitting direction Di as described later. It is prevented that it gets out of the said hooking hole part 11c by being hooked.

  Further, in the outer lens 12, as shown in FIG. 2 to FIG. 5, the lens side screwing portion 32 is provided at the lens rear end portion 23. The lens side screwing portion 32 is formed on the outside of the seal leg portion 31 so as to protrude rearward in the front-rear direction from the rear end 23 of the lens in the fitting direction Di (see FIG. 5). The lens side screwing portion 32 is provided at a position overlapping the housing rear end portion 22 of the lamp housing 11 in a state where the outer lens 12 is assembled to the lamp housing 11 as described later. For this reason, the lens side screwing portion 32 overlaps the housing rear end portion 22 in FIG. 6 showing a state in which the vehicle lamp 10 is viewed from the front and rear direction rear side in the direction along the fitting direction Di. There is.

  The lens side screwing portion 32 is provided with a screw fixing hole 33 and a receiving portion 34 side by side in the fitting direction Di. The screw fixing hole 33 is provided at the protruding end of the lens side screwing portion 32, and is formed so as to be able to receive and tighten a screw member 37 described later in the fitting direction Di. The receiving portion 34 is provided in a rectangular shape so as to penetrate an intermediate position in the lens side screwing portion 32 as viewed in the fitting direction Di, and is orthogonal to the fitting direction Di at the opening edge on the front side of the fitting direction Di The side interference surface 34a is formed. Therefore, the receiving portion 34 is provided on the rear side of the screw fixing hole 33 in the fitting direction Di. In the receiving portion 34, when the protruding claw portion 28 of the rear end portion 22 of the housing enters therein, the receiving interference surface 34a interferes with the protruding interference surface 28a of the protruding claw portion 28 in the fitting direction Di, and the protruding claw The backward movement of the fitting direction Di with respect to the portion 28 is prevented.

  In the vehicle lamp 10, the outer lens 12 is assembled to the lamp housing 11 as follows. First, the seal member 35 is provided in the seal groove portion 24 of the lamp housing 11 (see FIG. 7A). The seal member 35 is provided to ensure water tightness between the seal groove 24 and the seal leg 31, that is, between the lamp housing 11 and the outer lens 12. The seal member 35 can use, for example, a hot melt, a foam gasket, a packing made of an elastic body, or the like.

  Then, the seal leg portion 31 of the outer lens 12 is inserted into the seal groove portion 24 provided with the seal member 35 in the insertion direction Di, and the outer lens 12 is inserted into the lamp housing 11. At this time, the hooking projections 11b including the hooking projections 11b1 of the lamp housing 11 enter the corresponding hooking holes 12b of the outer lens 12, and the hooking holes 11c including the hooking holes 11c1 of the lamp housing 11 The corresponding hooking projections 12c of the outer lens 12 enter (see FIGS. 2 to 4 and 6). In this state, the screw insertion holes 11a of the lamp housing 11 and the corresponding screw fixing holes 12a of the outer lens 12 are opposed to each other with their axes aligned (see FIG. 6). Further, when the outer lens 12 is fitted into the lamp housing 11, the housing side screwing portion 26 of the lamp housing 11 faces the lens side screwing portion 32 of the corresponding outer lens 12 (from FIG. 2) 4). Then, the protruding claws 28 of the housing side screwing portion 26 enter the receiving portion 34 of the lens side screwing portion 32, and the screw insertion holes 27 of the housing side screwing portion 26 are the screw fixing holes 33 of the lens side screwing portion 32. And (see FIG. 7 (b)).

  Then, the seal leg portion 31 is inserted into the seal member 35 in the seal groove portion 24 and surrounded by the seal member 35 in the seal groove portion 24 (see FIG. 7B). By curing the seal member 35, water tightness between the seal leg portion 31 and the seal groove portion 24, that is, between the lamp housing 11 and the outer lens 12 can be secured. Although FIG. 7 shows the periphery of the projection claw portion 28 and the receiving portion 34 (the separation preventing mechanism 38 described later), the relationship between the seal leg portion 31 and the seal groove portion 24 in which the seal member 35 is interposed is other The same is true for

  Thereafter, the fixing screws 36 are tightened and fixed to the screw fixing holes 12a of the outer lens 12 from the back side (rear side in the front-rear direction) of the lamp housing 11 through the screw insertion holes 11a of the lamp housing 11 (see FIG. 6). In addition, the screw fixing hole 33 of the lens side screwing portion 32 of the outer lens 12 is screwed through the screw insertion hole 27 of the housing side screwing portion 26 of the lamp housing 11 from the back side (rear side in the front and rear direction) of the lamp housing 11 37 is tightened and fixed (see FIG. 7 (c)). Thereby, the outer lens 12 is assembled to the lamp housing 11 while securing the water tightness.

  The vehicle lamp 10 in which the outer lens 12 is assembled to the lamp housing 11 as described above is provided at the front end of the vehicle 50 so as to constitute a headlight of the vehicle 50, as shown in FIG. The vehicle lamp 10 cooperates with the outer plate member 51 and the like of the vehicle 50 to form the outer shape of the vehicle 50. Here, thermal expansion occurs in the vehicle lamp 10 and the outer panel member 51 of the vehicle 50 due to the change in temperature. Since the amount of thermal expansion changes depending on the material (the coefficient of thermal expansion) and the shape, the amount of thermal expansion differs between the vehicular lamp 10 and the outer plate member 51. Here, in general, in the vehicle lamp 10, since the lamp housing 11 and the outer lens 12 are formed of a resin material, the amount of thermal expansion is larger than that of the outer plate member 51 made of a metal material. As a result, the vehicle lamp 10 protrudes to the outer plate member 51, which may cause the appearance of the vehicle 50 to be degraded.

  For this reason, in the vehicular lamp 10, the displacement prevention piece 25 is provided at the housing rear end portion 22 of the lamp housing 11 (see FIGS. 2 to 4 and the like). As shown in FIG. 8A, the anti-displacement piece 25 is shaped so as to wrap around the outside of the vehicle 50 more than the rear end 23 of the lens when the outer lens 12 is assembled to the lamp housing 11. It opposes the fender panel 52 as the outer plate member 51 of the vehicle 50 at a predetermined distance. For this reason, in the vehicle lamp 10, even if the thermal expansion of the outer plate member 51 of the vehicle 50 is larger than that of the vehicle 50, as shown in FIG. 8B, the slip prevention piece 25 contacts the folded side 52a of the fender panel 52. As a result, it is possible to prevent the occurrence of a level difference with the fender panel 52 (the outer plate member 51). Here, in the vehicular lamp 10, since the lamp housing 11 (the material thereof) is stronger than the outer lens 12 (the material thereof), the shift preventing piece 25 is provided so as to protrude from the lamp housing 11 At the same time, the lens 50 is shaped so as to extend to the outside of the vehicle 50 more than the lens rear end 23 (outer lens 12).

  At this time, in the vehicular lamp 10, the force resulting from the difference in the thermal expansion amount acts on the shift preventing piece 25, so that the force moves the lamp housing 11 provided with the shift preventing piece 25 to the inside of the vehicle 50. Acts to push (see arrow A1 in FIG. 3). Then, in the vehicular lamp 10, a force acts to separate the lamp housing 11 (the housing rear end 22) and the outer lens 12 (the lens rear end 23). On the other hand, in the case of the vehicular lamp 10, as shown in FIGS. 2 to 6, the housing side screwing portion 26 is provided in the lamp housing 11 in the vicinity of the shift preventing piece 25 and the housing side screwing portion 26 The screw insertion hole 27 is tightened and fixed by the screw fixing hole 33 of the lens side screwing portion 32 of the outer lens 12 and the screw member 37. For this reason, in the vehicular lamp 10, even when the force acts on the slip prevention piece 25, the coupled state of the housing side screwing portion 26 and the lens side screwing portion 32 can be maintained, and the lamp housing 11 and It is possible to prevent positional deviation from occurring with the outer lens 12. As described above, in the vehicular lamp 10, by providing the housing side screwing portion 26 and the lens side screwing portion 32 in proximity to the slippage prevention piece 25, the slippage prevention piece 25 is the fender panel 52 (outer plate member 51). It is possible to prevent the positional deviation between the lamp housing 11 and the outer lens 12 when the step is prevented from occurring. Thereby, in the vehicular lamp 10, the water tightness between the lamp housing 11 and the outer lens 12 can be maintained.

  Next, the technical problems of the vehicular lamp 10 will be described with reference to FIG. In addition, even if it is the vehicle lamp 10 of this invention, the problem of this technique will be demonstrated using this vehicle lamp 10, since it will be in the same condition even if it is the vehicle lamp 10 of this invention.

  In the vehicle lamp 10, as described above, the outer lens 12 is assembled to the lamp housing 11. However, in the process, a force that separates the lamp housing 11 and the outer lens 12 from each other acts. Specifically, in the vehicular lamp 10, as shown in FIG. 9A, the lamp housing 11 is installed on the first installation stand 56, and the seal member 35 is provided in the seal groove portion 24 of the lamp housing 11. (See FIG. 7 (a)). After that, in the vehicular lamp 10, the outer lens 12 supported by the arm 57 is approached and fitted in the fitting direction Di from above onto the lamp housing 11 on the first installation stand 56 (FIGS. b) see). As a result, each hooking projection 11b of the lamp housing 11 enters the corresponding hooking hole 12b of the outer lens 12, and each hooking projection 12c of the outer lens 12 corresponds to each hooking hole 11c of the lamp housing 11. Get in. In this state, the seal member 35 is cured.

  Thereafter, in the vehicular lamp 10, as shown in FIG. 9C, the arm 57 supports and lifts the outer lens 12 assembled to the lamp housing 11, thereby lifting it upward from the first installation stand 56. Be Thereafter, in the vehicle lamp 10, as shown in FIG. 9 (d), it is transferred onto the second installation stand 58 in a state of being lifted by the arm 57, and is installed on the second installation stand 58. In the vehicle lamp 10, each of the outer lenses 12 passes through each screw insertion hole 11a of the lamp housing 11 from the back side (rear side in the front-rear direction) of the lamp housing 11 in a state of being installed on the second installation stand 58. Each fixing screw 36 is tightened and fixed in the screw fixing hole 12a (see FIG. 6). Further, in the vehicle lamp 10, the screw of the lens side screwing portion 32 of the outer lens 12 is passed through the screw insertion hole 27 of the housing side screwing portion 26 of the lamp housing 11 from the back side (back side in the front and rear direction) of the lamp housing 11 The screw member 37 is tightened and fixed in the fixing hole 33 (see FIG. 7C). Thereby, in the vehicle lamp 10, the outer lens 12 is assembled to the lamp housing 11 while securing water tightness.

  Here, in the vehicle lamp 10, the outer lens 12 is supported by the arm 57 before the fixing screws 36 and the screw members 37 are tightened and fixed after the outer lens 12 is fitted into the lamp housing 11. It is lifted (see FIG. 9 (c)). At this time, the lamp housing 11 separates from the outer lens 12 supported by the arm 57 by the weight of the lamp unit 13, the inner panel 14, the lighting drive device, etc. accommodated in the lamp chamber 15 in addition to its own weight. Force works. As described above, in the vehicle lamp 10, in the process of assembling the outer lens 12 to the lamp housing 11, a force acts in a direction to separate the lamp housing 11 and the outer lens 12 from each other. However, in the vehicle lamp 10, the hooking projections 11 b of the lamp housing 11 enter the corresponding hooking holes 12 b of the outer lens 12 and the outer lenses 12 correspond to the hooking holes 11 c of the lamp housing 11. The hooking protrusion 12c has entered. Therefore, in the vehicular lamp 10, even before the fixing screws 36 and the screw members 37 are tightened and fixed, it is basically prevented that the lamp housing 11 and the outer lens 12 are pulled apart by the force. Ru.

  However, in the vehicle lamp 10, at the housing rear end 22 and the lens rear end 23, the lamp housing 11 and the outer lens 12 are pulled apart to form the seal groove 24 and the seal leg 31 in which the seal member 35 is interposed. There is a possibility that the positional relationship may change. The following can be considered. In the vehicle lamp 10, when the outer lens 12 is fitted into the lamp housing 11 in the fitting direction Di, each hooking projection corresponding to each hooking hole 12b corresponding to each hooking projection 11b and each hooking projection corresponding to each hooking hole 11c The part 12c needs to enter. Therefore, in the vehicle lamp 10, when viewed on a plane orthogonal to the insertion direction Di, each hooking protrusion 11b (each hooking hole 12b) and each hooking hole 11c (each hooking protrusion 12c) Can not be arranged at the position where they overlap each other (see FIG. 6). Further, in the vehicle lamp 10, the entire shape is curved toward the vehicle outer side in the front-rear direction while extending in the left-right direction in the front-rear direction front side and in the front-rear direction. In the vehicle lamp 10, the insertion direction Di is close to the front and rear direction, so the housing rear end 22 and the lens rear end 23 which are on the rear side in the front and rear direction are the extension direction and the insertion direction Di. Become close to parallel. From these things, in the vehicle lamp 10, for example, the rear end of the housing can be understood by comparing the positional relationship between the hook hole portion 11c1 in FIG. 3 and FIG. 6, the housing side screwing portion 26 and the slip prevention piece 25. In the portion 22 and the lens rear end portion 23, even if they are brought close to each other in a state of being projected on a plane orthogonal to the fitting direction Di, the actual distance becomes large. Therefore, in the vehicular lamp 10, the housing rear end 22 and the lens rear end are formed even if the respective hooking projections 11b enter into the respective hooking holes 12b and the hooking projections 12c enter the respective hooking holes 11c. At 23 the bond strength is reduced compared to other locations. Thus, in the vehicle lamp 10, in the process of assembling the outer lens 12 to the lamp housing 11, the seal groove 24 and the seal leg 31 with the seal member 35 interposed between the housing rear end 22 and the lens rear end 23. There is a possibility that the positional relationship of may change.

  On the other hand, in the vehicle lamp 10 of the present invention, the housing claws 26 of the lamp housing 11 are provided with the projecting claws 28 and the lens screw 32 of the outer lens 12 is provided with the receivers 34. There is. For this reason, in the vehicle lamp 10, when the outer lens 12 is fitted into the lamp housing 11, the protruding claws 28 of the housing side screwing portion 26 enter the receiving portion 34 of the lens side screwing portion 32. In this projection claw portion 28, when it enters into the receiving portion 34 of the lens side screwing portion 32, the projection side interference surface 28a interferes with the receiving side interference surface 34a of the receiving portion 34 in the fitting direction Di, and the receiving portion 34 The forward movement of the fitting direction Di with respect to is prevented. Thus, relative movement between the housing side screwing portion 26 and the lens side screwing portion 32 in the direction away from each other is prevented. For this reason, in the vehicle lamp 10, even if the outer lens 12 is supported by the arm 57 and lifted before the fixing screws 36 and the screw members 37 are tightened and fixed, the projection claws 28 (the projection side interference surface 28a Can interfere with the receiving portion 34 (the receiving side interference surface 34a) in the fitting direction Di, and a change in the positional relationship between the housing side screwing portion 26 and the lens side screwing portion 32 can be prevented. Thereby, in the vehicle lamp 10, the change in the positional relationship between the housing rear end 22 provided with the housing side screwing portion 26 and the lens rear end 23 provided with the lens side screwing portion 32 is prevented. Even in the housing rear end 22 and the lens rear end 23, it is possible to prevent a change in the positional relationship between the seal groove 24 and the seal leg 31 in which the seal member 35 is interposed. From this, in the vehicle lamp 10, the projection claw 28 of the housing side screwing portion 26 and the receiving portion 34 of the lens side screwing portion 32 interfere in the fitting direction Di, and the outer lens 12 becomes the lamp housing 11 Function as a separation prevention mechanism 38 for preventing separation from the space.

  Here, in the vehicle lamp 10, in the housing side screwing portion 26 of the lamp housing 11, the screw insertion hole 27 and the projecting claw portion 28 are provided side by side in the fitting direction Di, and the lens side screwing of the outer lens 12 In the portion 32, the screw fixing hole 33 and the receiving portion 34 are provided side by side in the fitting direction Di. For this reason, in the vehicular lamp 10, when the outer lens 12 is fitted into the lamp housing 11, the screw for fixing the separation prevention mechanism 38 (the projection claw portion 28 and the receiving portion 34), the screw fixing hole 33 and the screw insertion hole 27 The members 37 are arranged in the insertion direction Di. Here, in the vehicle lamp 10, as described above, when the force in the direction to separate the lamp housing 11 and the outer lens 12 acts before fixing by the screw member 37, the projection claw portion 28 of the separation prevention mechanism 38 and the reception are received. The interference with the portion 34 in the fitting direction Di prevents a change in the positional relationship between the housing side screwing portion 26 and the lens side screwing portion 32. At this time, in the vehicle lamp 10, even if the housing side screwing portion 26 and the lens side screwing portion 32 are separated in the fitting direction Di within the allowable range of the separation preventing mechanism 38, the separation is prevented Since it is fixed in the insertion direction Di by the screw member 37 aligned with the mechanism 38 in the insertion direction Di, the relative movement is made only in the insertion direction Di and the positions where the forces act on each other are aligned in the insertion direction Di be able to. Thereby, in the vehicle lamp 10, the movement of the seal leg 31 in the seal groove 24 can be made only in the fitting direction Di, so that the seal leg 31 operates to move around the seal member 35. It can be prevented. On the other hand, when the separation prevention mechanism 38 and the screw member 37 are not aligned in the fitting direction Di, the movement of the separation prevention mechanism 38 within the allowable range and the movement at the time of fixation by the screw member 37 are Even if they are in the insertion direction Di, the positions at which the respective forces act are shifted in the direction orthogonal to the insertion direction Di. Therefore, in this case, the seal leg portion 31 in the seal groove portion 24 moves in a direction orthogonal to the insertion direction Di in addition to the insertion direction Di, and the seal leg portion 31 is a seal groove portion There is a possibility that the seal member 35 in 24 may be operated to be swung.

  As described above, in the vehicle lamp 10 of the embodiment of the vehicle lamp according to the present invention, the projection claw portion 28 (the projection side interference surface 28a) and the receiving portion 34 (the reception side interference surface 34a) are fitted into It functions as the separation prevention mechanism 38 that interferes with Di, and prevents the relative movement between the housing side screwing portion 26 and the lens side screwing portion 32 in the direction away from each other. In addition, in the vehicle lamp 10, the screw members 37 (configuration for fastening and fixing thereby) and the separation prevention mechanism 38 are provided side by side in the fitting direction Di. In the vehicle lamp 10, the projection claw portion 28 and the receiving portion 34 (the separation preventing mechanism 38) are provided on the housing side screwing portion 26 of the lamp housing 11 and the lens side screwing portion 32 of the outer lens 12. Even if the force in the direction to separate the lamp housing 11 and the outer lens 12 acts before fixing them with the screw member 37, the change in the positional relationship between the housing side screwing portion 26 and the lens side screwing portion 32 This can prevent the change in the positional relationship between the lamp housing 11 and the outer lens 12. At this time, in the vehicle lamp 10, even if the housing side screwing portion 26 and the lens side screwing portion 32 are separated in the fitting direction Di within the allowable range of the separation preventing mechanism 38, the separation is prevented Since it is fixed in the insertion direction Di by the screw member 37 aligned with the mechanism 38 in the insertion direction Di, the relative movement is made only in the insertion direction Di and the positions where the forces act on each other are aligned in the insertion direction Di be able to. Thus, in the vehicle lamp 10, the movement of the seal leg 31 in the seal groove 24 can be made more reliably only in the fitting direction Di, so that the seal leg 31 operates so as to twist the seal member 35. Can be prevented. Therefore, in the vehicular lamp 10, the seal groove 24 and the seal leg with the seal member 35 interposed therebetween even if a force in the direction to separate the lamp housing 11 and the outer lens 12 acts before fixing by the screw member 37. A change in the positional relationship with the lens 31 can be prevented, and the space between the lamp housing 11 (the seal groove portion 24) and the outer lens 12 (the seal leg portion 31) can be appropriately filled with the seal member 35.

  Further, in the vehicular lamp 10, the lens side screwing portion 32 is formed so as to protrude from the outer lens 12 toward the lamp housing 11 in the fitting direction Di. In the vehicle lamp 10, when the outer lens 12 is assembled to the lamp housing 11, the lens side screwing portion 32 moves in the fitting direction Di with respect to the housing side screwing portion 26. For this reason, in the vehicle lamp 10, in the lens side screwing portion 32, the extending direction and the moving direction with respect to the housing side screwing portion 26 become parallel, and the projection is inserted when the outer lens 12 is fitted into the lamp housing 11. Provision of the claws 28 and the receiving portion 34 (the separation prevention mechanism 38) can be facilitated.

  Furthermore, in the vehicle lamp 10, the lens side screwing portion 32 extending in the fitting direction Di is provided with a configuration for fixing by the screw member 37 to the housing side screwing portion 26 and a separation preventing mechanism 38. For this reason, in the vehicular lamp 10, the occupied area of the configuration for fixing and the separation prevention mechanism 38 when projected onto the plane orthogonal to the insertion direction Di can be made small, and the efficiency is further improved. Can be arranged well.

  In the vehicle lamp 10, the lens side screwing portion 32 is provided with a screw insertion hole 27 extending in the fitting direction Di at the projecting end from the outer lens 12, and the separation preventing mechanism 38 at an intermediate position viewed in the fitting direction Di. Is provided. For this reason, in the vehicle lamp 10, in the lens side screwing portion 32, the separation prevention mechanism between the position fixed by the screw member 37 with the housing side screwing portion 26 and the housing side screwing portion 26 It is possible to make the position where the 38 interferes with each other. Thereby, in the vehicular lamp 10, even if positional deviation occurs between the housing side screwing portion 26 and the lens side screwing portion 32 within the allowable range of the separation preventing mechanism 38, the fixing is performed by the screw member 37. The effect on the positional relationship between the screw insertion hole 27 and the screw fixing hole 33 can be reduced, and the seal member between the lamp housing 11 (the seal groove portion 24 thereof) and the outer lens 12 (the seal leg portion 31) It can be filled properly at 35.

  In the vehicle lamp 10, the receiving portion 34 is provided in the lens side screwing portion 32, and the projection claw portion 28 is provided in the housing side screwing portion 26 to configure the separation preventing mechanism 38. For this reason, in the vehicle lamp 10, in the separation prevention mechanism 38, the receiving side interference surface 34a that interferes with the projection claw portion 28 (the projection side interference surface 28a) in the receiving portion 34 It can be a projecting end side provided with the hole 27. Thereby, in the vehicular lamp 10, the position at which the protruding claw portion 28 in the separation preventing mechanism 38 interferes with the receiving portion 34 can be brought closer to the screw insertion hole 27, that is, the screw member 37 (a position fixed thereby). From this, in the vehicular lamp 10, even if the housing side screwing portion 26 and the lens side screwing portion 32 are misaligned within the allowable range of the separation prevention mechanism 38, the screw member 37 is The influence on the positional relationship between the screw insertion hole 27 and the screw fixing hole 33 to be fixed can be extremely reduced, and the space between the lamp housing 11 (the seal groove 24) and the outer lens 12 (the seal leg 31) The sealing member 35 can be more appropriately filled.

  In the vehicle lamp 10, the lamp housing 11 and the outer lens 12 are curved backward so as to turn sideways from the front of the vehicle 50, and the housing rear end 22 is provided with the housing side screwing portion 26, and A lens side screwing portion 32 is provided at the rear lens rear end portion 23. Therefore, in the vehicle lamp 10, the housing rear end 22 and the lens rear end 23 are easily screwed to the housing rear end 22 and the lens rear end 23 in which the positional relationship between the seal groove 24 and the seal leg 31 with the seal member 35 intervened easily. Since the portion 26 and the lens side screwing portion 32 are provided, it is possible to more effectively prevent the change in the positional relationship between the seal groove portion 24 and the seal leg portion 31 in which the seal member 35 is interposed.

  In the vehicle lamp 10, the housing side screwing portion 26 and the lens side screwing portion 32 are provided at positions adjacent to the anti-displacement piece 25 when viewed on a plane orthogonal to the fitting direction Di. For this reason, in the vehicular lamp 10, even if the force resulting from the difference in the amount of thermal expansion acts on the shift preventing piece 25, the housing side screwing portion 26 and the lens side screwing portion 32 are screw members 37. Because of this fixing, it is possible to prevent positional deviation between the lamp housing 11 and the outer lens 12. Then, in the vehicle lamp 10, the housing side screwing portion 26 and the lens side screwing portion 32 which are required to be fixed by the screw member 37 from being adjacent to the shift preventing piece 25 are moved so as to separate from each other. Since it can prevent by the separation prevention mechanism 38 provided in the above, the water tightness between the lamp housing 11 and the outer lens 12 can be surely ensured.

  Therefore, in the vehicle lamp 10 of the embodiment according to the present invention, even if a separating force is applied between the lamp housing 11 and the outer lens 12, the space between them can be appropriately filled with the seal member 35.

  In the embodiment described above, the vehicle lamp 10 as an example of the vehicle lamp according to the present invention has been described, but a lamp housing having an opening at one end, and a seal member fitted in the opening An outer lens, a housing side screwing portion provided in the lamp housing, a lens side screwing portion provided in the outer lens, the housing side screwing portion, and the lens side screwing portion A screw member, and the screw member fixes the housing side screwing portion and the lens side screwing portion in a fitting direction in which the outer lens is fitted into the lamp housing, and the housing side screw In order to prevent the fitted outer lens from being separated from the lamp housing, the stop portion and the lens side screw portion are fitted. A separation preventing mechanism for causing the projection claws to interfere with the receiving portion in a direction is provided, and the separation preventing mechanism may be a vehicle lamp arranged side by side with the screw member in the fitting direction, and the embodiment described above It is not limited to the configuration of

  Further, in the embodiment described above, as the separation preventing mechanism 38, the projection claw portion 28 is provided on the housing side screwing portion 26 of the lamp housing 11, and the receiving portion 34 is provided on the lens side screwing portion 32 of the outer lens 12. . However, the separation preventing mechanism (38) receives the projecting claw portion (28) in the fitting direction (Di) to prevent the fitted outer lens (12) from being separated from the lamp housing (11). The housing side screwing portion 26 may be provided with a receiving portion and the lens side screwing portion 32 may be provided with a projecting claw portion, as long as it interferes with the above. It is not a thing.

  Furthermore, in the above-described embodiment, a vehicle lamp 10 used as a headlight (head lamp) of a vehicle (50) is shown. However, in the vehicle lamp according to the present invention, as long as the outer lens (12) is fitted into the opening (21) of the lamp housing (11) via the seal member (35), other vehicles used for the vehicle It may be a lamp, and is not limited to the configuration of the embodiment described above.

  As mentioned above, although the vehicle lamp of this invention was demonstrated based on the Example, about a specific structure, it is not restricted to an Example, A change, addition, etc. of a design are permissible unless it deviates from the summary of this invention Be done.

DESCRIPTION OF SYMBOLS 10 (10R, 10L) Vehicle lamp 11 Lamp housing 12 Outer lens 21 Opening part 22 Housing rear end part 23 Lens rear end part 25 Slip prevention piece 26 Housing side screwing part 27 Screw insertion hole 28 Protrusion part 32 Lens side screw Stop part 34 Reception part 35 Seal member 37 Screw member 38 Separation prevention mechanism 50 Vehicle Di insertion direction

Claims (7)

A lamp housing having an opening at one end,
An outer lens fitted into the opening through a seal member;
A housing side screwing portion provided in the lamp housing;
A lens side screwing portion provided on the outer lens;
A screw member for fixing the housing side screwing portion and the lens side screwing portion;
The screw member fixes the housing side screwing portion and the lens side screwing portion in a fitting direction in which the outer lens is fitted into the lamp housing,
In the housing side screwing portion and the lens side screwing portion, in order to prevent the fitted outer lens from being separated from the lamp housing, separation preventing the projection claw portion from interfering with the receiving portion in the fitting direction Set up a mechanism,
The said separation prevention mechanism is arrange | positioned along with the said screw member in the said insertion direction, The vehicle lamp characterized by the above-mentioned.   The vehicle lamp according to claim 1, wherein the lens side screwing portion is formed to project from the outer lens toward the lamp housing in the fitting direction. In the lens side screwing portion, a screw insertion hole extending in the fitting direction is provided at a projecting end from the outer lens,
The vehicle lamp according to claim 2, wherein the separation preventing mechanism is provided at an intermediate position of the lens side screwing portion as viewed in the fitting direction.   The vehicle lamp according to claim 3, wherein the separation preventing mechanism is configured by providing the receiving portion in the lens side screwing portion and providing the projection claw portion in the housing side screwing portion. . The lamp housing and the outer lens are curved backward to turn from the front to the side of the vehicle,
The housing side screwing portion is provided at a housing rear end portion of the lamp housing,
The vehicle according to any one of claims 1 to 4, wherein the lens side screwing portion is provided at a lens rear end portion of the outer lens corresponding to the housing side screwing portion. Lamp.   6. The vehicular lamp according to claim 5, wherein a slip prevention piece is provided at the rear end portion of the housing so as to turn to the outside of the vehicle than the rear end portion of the lens. The housing side screwing portion and the lens side screwing portion are provided at positions adjacent to the anti-displacement piece when viewed on a plane orthogonal to the fitting direction. The vehicle lamp according to.