JPH0650121U - Vehicle lighting - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a vehicle lamp that does not generate white powder of resin due to vehicle vibration. [Structure] An outer lens 15 arranged in an opening of the housing 10 and a resin inner lens 18 arranged between a lamp and the outer lens 15 provided in the housing 10 are provided, and the outer lens 15 is attached to the housing 10. In the vehicular lamp having the leg portion 16 for storing, the recess portion 17 is formed inside the leg portion 16 of the outer lens 15 and at a position separated from the lens portion 15a of the outer lens 15, and the inner lens 18 is formed in the recess portion 17. The inner lens 18 is attached to the outer lens 15 by the elastic force of the inner lens that engages the end portion of the inner lens 18 and urges the end portion toward the leg portion 16.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicular lamp including an outer lens and a resin inner lens, and the outer lens having legs for attaching to a housing.

[0002]

[Prior art]

 Conventionally, a vehicle lamp shown in FIG. 3 has been known. In FIG. 3, reference numeral 51 denotes a housing having an open front surface, and this housing 51 is fixed to a vehicle body (not shown) by a fixing tool 52.

Inside the housing 51, a leg portion 54 for attaching the first inner lens 53 made of resin is formed, and an outer peripheral wall 55 is formed outside the leg portion 54. The leg portion 54 and the outer peripheral wall are formed. A concave portion for filling the hot melt 56 is formed between the concave portion 55 and the groove 55.

The first inner lens 53 is attached to the leg portion 54, and the rear leg portion 57 a provided on the rear surface of the second inner lens 57 made of resin is in contact with the first inner lens.

A leg portion 57b extending forward is formed on the second inner lens 57, and the leg portion 57b is in contact with an outer lens 58 provided in a front opening of the housing, and the second inner lens 57 is an outer lens. It is sandwiched by 58 and the first inner lens 53.

The attachment of the outer lens 58 is performed by filling a hot melt 56 in a concave portion between the leg portion 54 and the outer peripheral wall 55 and inserting the leg portion 58 a of the outer lens 58 into the hot melt 56. Is.

[0007]

[Problems to be solved by the device]

 However, in such a vehicle lamp, the second inner lens 57 is sandwiched between the outer lens 58 and the first inner lens 53, and thus the second inner lens 57 causes the outer lens 58 and the first inner lens 53 to be vibrated. The first inner lens 53 is rubbed. As a result, white powder of the resin is generated, and if the white powder adheres to the outer lens 58, the white powder can be seen through the outer lens 58, and the appearance is significantly impaired. Further, if the white powder is left to be generated for a long period of time, the white powder covers the inner surface of the outer lens 58, so that the light distribution performance is deteriorated.

The present invention has been made in view of the above problems, and an object thereof is to provide a vehicle lamp that does not generate white powder of resin due to vehicle vibration.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention comprises an outer lens disposed in an opening of a housing and a resin inner lens disposed between the lamp and the outer lens provided in the housing. In the vehicular lamp having a leg portion for attaching to the housing, a concave portion is formed inside the leg portion of the outer lens and at a position separated from the lens portion of the outer lens, and the inner lens is provided in the concave portion. The inner lens is attached to the outer lens by the elastic force of the inner lens that engages the end of the inner lens and urges the end toward the leg.

[0010]

[Action]

 In this invention, a concave portion is formed inside the leg portion of the outer lens and at a position separated from the lens portion of the outer lens, the end portion of the inner lens is engaged with the concave portion, and the end portion is fixed to the leg portion. Since the inner lens is attached to the outer lens by the elastic force of the inner lens that is urged in the direction, the end of the inner lens rubs against the outer lens due to vehicle vibration, and white powder of resin is generated. There is no.

[0011]

【Example】

 An embodiment of a vehicular lamp according to the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 10 denotes a resin housing having front and side openings, and the housing 10 is fixed to a vehicle body (not shown). In this housing 10, two lamp chambers 11 and 12 are formed, and lamps (not shown) are attached to these lamp chambers 11 and 12.

An outer lens 15 made of acrylic resin is arranged in the opening of the housing 10. A leg portion 16 is formed at the peripheral end of the lens portion 15a of the outer lens 15, and the leg portion 16 is fixed to the housing 10 with a screw N. Although the leg portions 16 are formed in a ring shape, a plurality of leg portions 16 may be formed.

A concave portion 17 is formed inside the leg portion 16 at a position separated from the lens portion 15 a of the outer lens 15.

An inner lens 18 made of acrylic resin is arranged between the outer lens 15 and a lamp (not shown), and a leg portion 19 extending rearward is formed at an end portion of the inner lens 18. Although this leg portion 19 is also formed in an annular shape, it may be formed in a plurality of parts.

A protrusion 19 a is formed on the outer side of the leg portion 19, and the protrusion 19 a is engaged with the recess 17 formed in the leg portion 16 of the outer lens 15. The inner lens 18 is set so that the projection 19a thereof has an elastic force to urge it toward the recess 17 side, and the inner lens 18 is attached to the outer lens 15 by this elastic force.

The inner lens 18 is configured by joining the inner lens portion 18a and the inner lens portion 18b, and the engaging protrusion 18c is formed at the joint portion of the inner lens portion 18a. An engagement recess 18d that engages with the engagement protrusion 18c is formed in the joint portion. Then, the inner projection 18c is engaged with the engagement recess 18d to join the inner lens portion 18a and the inner lens portion 18b.

By the way, since the inner lens 18 is attached to the outer lens 15 by its elastic force, the protrusion 19a of the inner lens 18 and the recess 17 of the outer lens 15 may be rubbed by the vibration of the vehicle. It is possible to prevent this, and as a result, no white powder of the resin is generated due to the rubbing.

Further, since the concave portion 17 provided in the leg portion 16 of the outer lens 15 is formed at a position separated from the lens portion 15a of the outer lens 15, the concave portion 17 is formed when the outer lens 15 is injection molded. A slide core for forming the can be arranged at a position separated from the back surface of the lens portion 15a. Therefore, the slide core does not directly contact the back surface of the lens portion 15a, so that a line may be generated on the back surface of the lens portion 15 along the boundary between the slide core and the mold forming the back surface. It can be prevented.

FIG. 2 shows another embodiment. In this embodiment, a portion between the outer lens 31 arranged at the opening of the housing 30 and a lamp (not shown) provided in the housing 30 is provided. Two inner lenses 32 and 33 are arranged.

The inner lens 32 is attached to a leg portion 34 provided in the housing 30, and the leg portion 35 of the outer lens 31 is a gap formed between the leg portion 34 and the outer peripheral wall 36 of the housing 30. It is inserted into the portion 37 and is fixed by the hot melt 38 filled in the gap portion 37. Reference numeral 39 denotes a concave portion provided on the inner side surface of the leg portion 35, and 40 denotes a protrusion provided on the leg portion 41 of the inner lens 33. The inner lens 33 is attached to the outer lens 31.

In each of the above embodiments, the projections 19a and 40 provided on the leg portions 19 and 41 of the inner lenses 18 and 33 are engaged with the concave portions 17 and 39 of the outer lenses 15 and 31, respectively, but the present invention is not limited to this. Of course, the end of the inner lens 18 may be directly engaged with the recesses 17, 39.

[0023]

【effect】

 According to this invention, a concave portion is formed inside the leg portion of the outer lens and apart from the lens portion of the outer lens, and the end portion of the inner lens is inserted into the concave portion to expand the inner lens. Since it is attached to the outer lens by the elastic force in the direction, the end portion of the inner lens does not rub against the outer lens to generate white powder of resin due to the vibration of the vehicle. In addition, since the recesses provided in the legs of the outer lens are formed at a position separated from the lens part of the outer lens, when the outer lens is injection-molded, the slide core for forming the recess is provided on the back surface of the lens part. Since the slide core can be placed at a position away from, it is possible to prevent the slide core from generating lines on the back surface of the lens portion.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the structure of a vehicular lamp according to the present invention,

FIG. 2 is a sectional view showing the configuration of another embodiment,

FIG. 3 is a cross-sectional view showing a configuration of a conventional vehicle lamp.

[Explanation of symbols]

 10 Housing 15 Outer Lens 15a Lens Part 16 Leg 17 Recess 18 Inner Lens

Claims (1)

[Scope of utility model registration request] 1. An outer lens arranged in an opening of a housing, and a resin inner lens arranged between a lamp provided in the housing and the outer lens, wherein the outer lens is attached to the housing. In a vehicular lamp having a leg portion, a concave portion is formed inside the leg portion of the outer lens and at a position separated from the lens portion of the outer lens, and the end portion of the inner lens is engaged with the concave portion. At the same time, the vehicular lamp is characterized in that the inner lens is attached to the outer lens by the elastic force of the inner lens that biases the end portion toward the leg portion.