JPH0517817U - Vehicle light protector - Google Patents

Abstract

(57) [Abstract] [Purpose] The protector interposed between the flange 2c of the front lens 2 and the vehicle body exterior plate 4 in a vehicular lamp has been improved so that no bonding operation is required and the front lens 2 is attached. so may a material which have a weldability for, and,
The appearance is made beautiful without providing a coating film on the flange 2c of the lens. [Structure] The protectors (7, 8) are molded integrally with the flange 2c of the front lens 2 by a synthetic resin material of the same color or white as the body exterior plate 4 to cover the rear surface of the flange 2c.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a protector interposed between a front lens of a vehicular lamp and a vehicle body exterior member, and particularly to a front lens provided with a flange-shaped portion on the outer peripheral portion of a lens leg and the vehicle body exterior member. The present invention relates to a protector suitable for being interposed therebetween.

[0002]

[Prior Art]

 FIG. 2 is a cross-sectional view of a main part of a vehicular lamp equipped with a conventional protector. A seal groove 1a is formed along the periphery of the front opening of the lamp housing 1. On the other hand, the front lens 2 is integrally provided with a ridge-shaped lens leg 2a protruding rearward, and the lens leg 2a is inserted into the seal groove 1a. A thermosoftening adhesive hot melt 3 is injected into the seal groove 1a to hermetically fix the lens leg 2a. Reference numeral 2b in the drawing denotes a prism formed on the rear surface of the front lens.

In the present invention, the front and rear designations are such that the direction in which the lamp is projected is the front and the opposite direction is the rear. It does not necessarily coincide with the traveling direction of the vehicle equipped with this lamp. In the attached drawings, the left side is the front and the right side is the rear. The front lens 2 of the vehicle lamp according to the conventional example is provided with a flange-shaped portion 2c around the lens leg 2a. The vehicular lamp configured as described above is fitted into an opening provided in the exterior plate 4 of the vehicle body, and the peripheral portion thereof is overlapped and mounted. Since the fitting portion and the overlapping portion do not always fit perfectly due to the manufacturing error and the mounting error of the constituent members, a clearance of about several millimeters is generally provided and the protector 5 is interposed. It

The protector 5 of the present example has a substantially U-shaped cross-section formed by a plane perpendicular to the peripheral edge thereof, and the flange 2c of the lens is moved forward and backward by the parallel two sides of the U-shape. It is sandwiched. The protector 5 is generally made of a flexible synthetic resin material, and is pre-bonded to the lens flange 2c so as to facilitate the work of assembling the protector 5 to the vehicle body exterior plate. This is because when the lens and the protector are integrally bonded to each other to form an integrated assembly, the operation of fitting the lens and the protector into the opening provided in the vehicle body exterior plate 4 is easy.

[0005]

[Problems to be solved by the device]

 In the protector of the conventional example shown in FIG. Problems with bonding work, and b. The problem of the degree of freedom in selecting the material for the protector, and c. There is a problem that the appearance of the lens flange part is not good. If the protector 5 is molded and then bonded to the lens flange 2c, a great deal of labor is required, and a time loss is required to wait for the adhesive to harden, which lowers the work efficiency. In addition, depending on the type of adhesive, harmful solvent vapors may be emitted, which requires a great deal of management costs to maintain the working environment, and special consideration should be given to worker rest and regular health checkups. Need. Furthermore, the bonding work requires a cleaning operation of the bonding surface as a pretreatment, which further increases the material cost and labor cost. In order to solve such a problem, it may be possible to integrally form the protector 5 by using a synthetic resin material having a welding property to the constituent material of the front lens 2. In this case, known techniques such as the insert molding method and the two-color molding method can be used. However, if the material of the protector is selected under the condition that it must have a weldability with respect to the front lens, the degree of freedom in selection is narrowed. When the freedom of choice is restricted, some disadvantages have to be put up. For example, when the front lens is acrylic resin or polycarbonate, Tuftec S2952 manufactured by Asahi Kasei Kogyo Co., Ltd. can be used if the weldability does not matter, but if the front lens has the weldability. The above Tuftec S2952 cannot be used. Looking for a similar product that has weldability to the front lens (acrylic or polycarbonate), for example, there is Alculin 2060BK manufactured by DuPont Mitsui Polychemicals Co., Ltd. I have to. Furthermore, when the vicinity of the protector 5 of the conventional example of FIG. 2 is viewed from the direction of arrow E, the edges of the protector 5 and the body exterior plate 4 are visible and the appearance is not good, so the coating film 6 is provided. There is. The present invention has been made in view of the above circumstances, and does not require a bonding operation at the time of assembling work. Moreover, it is an object of the present invention to provide a protector for a vehicular lamp having a lens flange portion, which can improve the appearance near the lens flange portion.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a protector made of a flexible synthetic resin interposed between a flange-shaped portion of a front lens of a vehicle lamp and a vehicle body exterior member. On the other hand, it is integrally molded with the front lens by a synthetic resin material having the same heat-welding property as that of the vehicle body exterior member or of the same color, and covers the entire rear surface side of the flange-like portion by the protector, and The front side of the flange-shaped portion is not covered.

[0007]

[Action]

 The protector of the vehicular lamp having the above-mentioned configuration does not require an adhering operation for its assembling, so that the work is easy and there is no risk of a work environment problem associated with adhering. Further, since the protector covers the rear surface of the lens flange portion, the edge of the vehicle body exterior plate and the like do not appear in the appearance when looking around this area from the front, so the appearance is not spoiled. In the above-mentioned configuration, the material of the protector is required to have a good heat-welding property with respect to the front lens, so that the material selection of the protector is restricted. However, since the protector of the portion that covers the rear surface of the lens flange in the above configuration is visible from the front through the lens flange, the surface of the lens flange can be seen even if the protector material is not glossy. The reflection gives a glossy feeling, and since it has the same color (or white) as the exterior body member, it has a good appearance.

[0008]

【Example】

 FIG. 1 (A) is a sectional view of a main part of a vehicular lamp equipped with an embodiment of a protector according to the present invention. This embodiment is obtained by applying the present invention to the conventional example shown in FIG. 2, and the same reference numerals as those in FIG. 2 are attached to the same or similar components as those in the conventional example. Is. The protector 7 of the present example is a synthetic resin having the same color as the body exterior plate 4 (in this example, manufactured by Mitsui DuPont Polychemical Co., Ltd.) that has a heat-welding property with respect to the constituent material of the front lens 2 (acrylic in this example). The front lens 2 is put into a mold (not shown) using Alculin 2060B K) and integrally molded by the insert molding method. In the protector 7 of this example, a portion 7a having an L-shaped cross section, which is positioned on the outer peripheral portion of the lens flange 2c, and a portion of the L-shaped portion 7a on the rear side of the flange of the two right-angled sides are inward, This is a structure in which an extension portion 7b extending to the base of the lens leg 2a is integrally provided. As is clear from the comparison of the configuration of FIG. 1 (A) with FIG. 2 (conventional example), it is not necessary to provide the coating film 6 as in the conventional example (FIG. 2) in this example. Moreover, when the extension portion 7b is viewed from the direction of the arrow E, it has the same color as the vehicle body exterior plate 4, and most of the portion is seen through the lens flange 2c, giving a glossy feeling and improving the appearance. FIG. 1B shows an embodiment different from the above. The protector 8 of this example comprises an L-shaped portion 8a and an extension portion 8b, the U-shaped portion 8a is made of a synthetic resin material of the same color as the vehicle body exterior plate 4, and the extension portion 8b is a white synthetic resin. The material is formed integrally with the lens flange 2c by applying a so-called multicolor molding method. According to this example (FIG. 1, B), the same effect as in the previous example (FIG. 1, A) is obtained, and the extended portion 8b is white and gives a glossy feeling, so that the appearance is more beautiful.

[0009]

[Effect of the device]

 As is clear from the above two embodiments, when the present invention is applied, the protector made of a material that does not have a weldability to the front lens can be firmly bonded to the lens without the need for an adhesive operation. Be combined. Therefore, the cost of assembly work is low, and a beautiful appearance can be obtained without providing a coating on the lens flange.

[Submission date] October 17, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction content]

[0005]

[Problems to be solved by the device]

In the protector of the conventional example shown in FIG. Problems with bonding work, and b. The problem of the degree of freedom in selecting the material for the protector, and c. There is a problem that the appearance of the lens flange part is not good. If the protector 5 is molded and then bonded to the lens flange 2c, a great deal of labor is required, and a time loss is required to wait for the adhesive to harden, which lowers the work efficiency. In addition, depending on the type of adhesive, harmful solvent vapors may be emitted, which requires a great deal of management costs to maintain the working environment, and special consideration should be given to worker rest and regular health checkups. Need. Furthermore, the bonding work requires a cleaning operation of the bonding surface as a pretreatment, which further increases the material cost and labor cost. In order to solve such a problem, it may be possible to integrally form the protector 5 by using a synthetic resin material having a weldability to the constituent material of the front lens 2. In this case, known techniques such as the insert molding method and the two-color molding method can be used. However, if the material for the protector is selected on the condition that it must have a weldability to the front lens, the degree of freedom in its selection is narrowed. When the freedom of choice is restricted, some disadvantages have to be put up. For example, if the front lens is an acrylic resin or polycarbonate, but can be used Arukurin 2060B K manufactured by Mitsui Du Pont Chemical Co. unless matter weldability, on condition that it has a weldability with respect to the front lens When put in, the above-mentioned Alculin 6020BK cannot be used. Looking for a similar product that has a weldability to the front lens (acrylic or polycarbonate), for example, there is Tuftec S2952 manufactured by Asahi Kasei Kogyo Co., Ltd., but you have to accept some disadvantages such as the lack of gloss in appearance. .. Furthermore, when the vicinity of the protector 5 of the conventional example of FIG. 2 is viewed from the direction of arrow E, the edges of the protector 5 and the edges of the vehicle body exterior plate 4 are visible and the appearance is not good, so the coating film 6 is provided. There is. This invention has been made in view of the above circumstances, without the need for bonding operation during assembly work, moreover, it is possible to configure the protector of a material which have a weldability with respect to the lens material, moreover An object of the present invention is to provide a protector for a vehicular lamp having a lens flange portion, which can improve the appearance near the lens flange portion.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

[0008]

【Example】

FIG. 1 (A) is a sectional view of a main part of a vehicular lamp equipped with an embodiment of a protector according to the present invention. This embodiment is an improvement of the conventional example shown in FIG. 2 by applying the present invention, and the same reference numerals as those in FIG. 2 denote the same or similar components as those in the conventional example. Is. The protector 7 of this example is a synthetic resin having the same color as the body exterior plate 4 and having a heat-welding property to the constituent material of the front lens 2 (acrylic in this example) ( Tuftec S2952 manufactured by Asahi Kasei Kogyo Co., Ltd. in this example ). ) Is used to insert the front lens 2 into a mold (not shown) and is integrally molded by the insert molding method. The protector 7 of this example is configured such that a portion 7a having an L-shaped cross section located on the outer peripheral portion of the lens flange 2c and a portion of the L-shaped portion 7a on the rear side of the flange out of two right sides of the L-shaped portion 7a are inward. It has a structure in which an extension portion 7b extended to the root of 2a is integrally connected. As is clear from the comparison of the configuration of FIG. 1A with FIG. 2 (conventional example), it is not necessary to provide the coating film 6 in this example as in the conventional example (FIG. 2). Moreover, when the extension portion 7b is viewed from the direction of the arrow E, it has the same color as the vehicle body exterior plate 4, and most of the portion is seen through the lens flange 2c, so that a glossy feeling is given and the appearance is improved. FIG. 1B shows an embodiment different from the above. The protector 8 of this example includes an L-shaped portion 8a and an extension portion 8b, and the U-shaped portion 8a is a synthetic resin material having the same color as the vehicle body exterior plate 4, and the extension portion 8b is a white synthetic resin material. Then, the so-called multicolor molding method is applied to integrally mold the lens flange 2c. According to this example (FIG. 1, B), the same effect as that of the previous example (FIG. 1, A) is obtained, and the extension portion 8b is white and gives a glossy feeling, so that the appearance is further beautiful. As further examples that different is not shown, it may be comprised of a suitable organic coloring synthetic resin material portion corresponding to the white extension in FIG. 1 (B). For example, if the color tone is matched with that of the body exterior plate 4, the appearance is adjusted and the commercial value is increased .

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

[0009]

[Effect of the device]

As it accounted if the above two examples clearly, applying the present invention, the protector constituted by using a material which have a weldability to the front surface lens, strongly bonded with the lens without the need for bonding operation To be done. Therefore, the cost of assembling work is low, and a beautiful appearance can be obtained without providing a coating film on the lens flange.

[Brief description of drawings]

1A and 1B are cross-sectional views showing an embodiment of a protector according to the present invention.

FIG. 2 is a sectional view of a main part of a vehicular lamp equipped with a protector of a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Lamp housing, 2 ... Front lens, 2a ... Lens leg, 2b ... Prism, 2c ... Flange, 3 ... Hot melt, 4 ... Car body exterior plate, 5 ... Conventional protector, 6 ... Coating film, 7, 8 ... Example protector.

Claims (1)

[Scope of utility model registration request] 1. A protector made of a flexible synthetic resin, which is interposed between a flange portion of a front lens of a vehicular lamp and a vehicle body exterior member, wherein the protector is heat-welding to the front lens. , While integrally molding the front lens with a synthetic resin material of the same color as the body exterior member or white, and covering the entire rear surface side of the flange-shaped portion by the protector, and the front side of the flange-shaped portion A protector for a vehicular lamp, which is not covered.