JPH04105404U - Vehicle lighting lens - Google Patents

Abstract

(57) [Abstract] [Purpose] In a vehicle lamp lens whose lens surface is curved and molded by slide cutting, the knurling on the leg when the vehicle lamp lens is viewed from the front. We aim to solve the problem of uneven surfaces that spoil the aesthetic appearance. [Structure] The front end of the vehicle lamp lens 1 is aligned with the knurling 31a formed on the leg 3 on the side where sliding is performed, and the knurling 32a on the side where sliding is not performed within a range of about 1 pitch from the inner surface 2a. A curved portion 31b is formed, which is curved as shown in FIG. It passes through the curved portion 31b so that the above-mentioned step does not occur.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to vehicle lighting lenses such as headlamps, and the details are as follows. There is no need for unnecessary see-through on the legs formed for the purpose of attaching the lens to the housing. This relates to the knurling provided to prevent this.

0002

[Conventional technology]

FIG. 4 shows a conventional vehicle lamp lens 90 of this type, in which the lens surface 91 This vehicle lighting lens is curved to fit the shape of the vehicle body. A leg portion 92 provided for attaching the case 90 to the housing has an anchor in the die cutting direction. A dar-cut portion is generated, and in order to mold this portion, the mold 80 is preliminarily cut in an oblique direction. A slide mold part 81 that is pulled out in the normal direction, and a main mold part 82 that is then pulled out in the normal direction. will be provided.

0003 Here, the leg portion 92 prevents the inside of the vehicle lamp from being seen through more than necessary. A knurling 93 is applied in which each pitch is raised to a height H in the shape of a semi-cylindrical piece, for example. However, by providing the slide mold part 81 in the mold 80, A knurling portion 93a provided on the leg portion 92 corresponding to this slide mold portion 81 Since the main mold part 82 that is subsequently pulled out passes through the body in an intersecting manner, as shown in FIG. As shown in FIG. is at least lower than the knurl 93b where the mold is provided on the main mold part 82 side. It is formed with a step H equal to the cutting height to avoid contact.

0004

[Problem that the idea aims to solve]

However, when the conventional vehicle lamp lens 90 is molded, The knurling 93a applied to the slide mold part 81 of the mold 80 and the main mold part 82 This vehicle lamp lens 90 can be When viewed from the front, the step mentioned above is clearly visible as shown in Figure 6. This creates the problem that it makes the viewer feel uncomfortable and looks very unsightly. Solving this point has been an issue.

[0005]

[Means to solve the problem]

The present invention is a concrete means for solving the conventional problems mentioned above. It is a vehicle lighting lens that is molded by curved and slide-cut. In the vehicle light lens with a ret, the slide of the vehicle light lens The knurling on the leg on the side where the slide is removed is the same as the one on the side where the slide is not removed. A curved portion is formed to match the knurling and the front end, and the slide The knurling on the side where no punching is done is the same as the knurling on the side where sliding punching is done. A non-knurled portion of 1 pitch is formed at the joint portion of the lens of the curved portion. The length from the surface is less than or equal to the length of the non-knurled portion and is greater than or equal to the 1 pitch. By providing vehicle lighting lenses that are characterized by As such, the above-mentioned conventional problems are solved.

[0006]

【Example】

Next, the present invention will be explained in detail based on an embodiment shown in the drawings. 1 and 2 are vehicle lamp lenses (hereinafter referred to as lenses) according to the present invention. It will be abbreviated as 1. ), and this lens 1 has a lens surface that curves along the shape of the vehicle body. 2, whereby the lens 1 has a slide mold part 11 and a main body mold part 12. The leg part 3 of this lens 1 is molded with a slide mold part 11. The main body part 32 is formed by molding the main body mold part 12. This is similar to the conventional example, and the slide portion roller provided on the slide portion 31 is similar to that of the conventional example. Basically, the knurling 31a and the main body knurling 32a applied to the main body 32 are A step H equal to the knurling height is provided to avoid contact during die cutting. The same is true for

[0007] However, according to the present invention, the lens surface of the sliding part knurl 31a A curved portion 31b is formed at a portion in contact with the inner surface 2a of the main body knurl. 32a and the front end, that is, the position in contact with the lens surface 2, and the main body The part knurl 32a has one pitch at the joint part with the slide part knurl 31a. A non-knurled portion 33 of P is formed, and in addition, the curved portion 31b is The length D from the inner surface 2a of the lens surface 2 of the cut portion 33 is equal to or less than the length D, and the 1 pin is It is said to be longer than the pitch P.

[0008] Here, if the state described above is explained in more detail with reference to FIG. The tip of the id portion knurl 31a is curved downward to form a curved portion 31b. As a result, there will be no interference with the main body knurl 32a at the joint. However, this joint portion is not knurled, that is, the main body knurling is By forming the non-knurled portion 33 which is lower than the height difference H by the height difference H than that of the groove 32a, the above-mentioned When pulling out the main mold part 12, the non-knurled part 33 is attached to the curved part 31b. It passes below and avoids contact between the two. In addition, in Figure 2, the lens As explained in the upper half of Figure 1, similar measures are applied to the lower half in a vertically symmetrical manner. Needless to say, it is something that exists.

0010 Here, the curved portion 31b is approximately equal to the length D from the inner surface 2a of the lens surface 2. The range of 1 pitch P is limited between the slide mold part 11 and the main body mold part 12. This is the result of considering the angle at which the cutting directions intersect. The angle at which it intersects with the mold part 12 is less than or equal to the maximum expected value of 90 degrees. Even if the pitch is set to 1 pitch P, it is possible to pass through the non-knurled portion 33. However, when the intersection angle is actually shallow and the pitch is set to 1 pitch P, the above Since the step H will be noticeable, it must be within the range of length D, which is the maximum value that can be passed. Appropriate values should be selected to improve appearance.

[0011] Next, the effects of the present invention configured as described above will be explained. As explained above, the main body knurling is attached to the tip of the slide knurl 31a. A curved portion 31b is provided in which the position where the contact point 32a and the lens surface 2 coincide with each other. As shown in Fig. 3, when viewed from the front, the lens 1 that does not make the difference in height H appear is placed in contact with the mold. Molding is possible without contact.

0012

[Effect of the idea]

As explained above, this invention allows for the sliding removal of vehicle lamp lenses. The knurling on the leg on the side that Match the front end with the knurling on the side where sliding is not performed within the range of 1 pitch. A curved portion is formed so that the slide is not removed. The knurling on the side where sliding is performed has one pitch on the knurling. The vehicle lamp lens has a non-knurled part, making it easy to slide out. This causes contact between the mold on the side where sliding is performed and the mold on the side where sliding is not performed. This type of vehicle lighting lens eliminates the occurrence of a step in the knurling. Designed for aesthetic purposes, as something that does not give the viewer a sense of discomfort when viewed from the front. It has excellent effects.

[Submission date] January 13, 1992

[Procedural amendment 2]

[Name of document to be amended] Specification

[Correction target item name] 0005

[Correction method] Change

[Correction details]

[0005]

[Means to solve the problem]

This invention has a curved lens surface as a specific means to solve the above-mentioned problems. This is a vehicle lighting lens that is molded by sliding it and has knurling on the legs. In the vehicle lamp lens that has been subjected to The knurling on the leg on the side where sliding is done and the knurling on the side where sliding is not done A cut is formed with a step at least equal to the height of the knurling process, and is The knurling on the side where slide removal is performed is the same as the knurling on the side where slide removal is not performed. The curved part is shaped to match the position where each part contacts the lens surface. of the knurling on the side where the slide is not removed. At least one pitch of the joining part with the knurling on the side where the knurling is performed is non-knurling. The length from the inner surface of the lens where the curved portion is formed is equal to the length of the curved portion. The length from the inner surface of the lens at the joint portion of the knurling portion is equal to or less than 1 above. By providing a vehicle lighting lens characterized by having a pitch or higher, This is intended to solve the above-mentioned conventional problems without causing any discomfort.

[Procedural amendment 3]

[Name of document to be amended] Specification

[Correction target item name] 0012

[Correction method] Change

[Correction details]

0012

[Effect of the idea]

As explained above, this invention allows for the sliding removal of vehicle lamp lenses. The knurling on the leg on the side that Match the front end with the knurling on the side where sliding is not performed within the range of 1 pitch. A curved portion is formed so that the slide is not removed. 1 of the parts of the knurls that join with the knurls on the side where the slide removal is performed By using a vehicle lamp lens whose pitch is formed as a non-knurled part, The mold on the side where slide punching is performed and the mold on the side where slide punching is not performed. When you look at the lens from the front, you won't notice any difference in the knurling. This type of vehicle lighting lens also gives the viewer a sense of discomfort when viewed from the front. As a product that does not cause this, it has an excellent effect on improving the aesthetic appearance.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing essential parts of an embodiment of a vehicle lamp lens according to the present invention.

FIG. 2 is a sectional view taken along line AA in FIG. 1.

FIG. 3 is a front view of essential parts of the same embodiment.

FIG. 4 is a top view showing a conventional example.

5 is a sectional view taken along line BB in FIG. 5. FIG.

FIG. 6 is a front view of main parts of a conventional example.

[Explanation of symbols]

1...Vehicle lighting lens 2...Lens surface 2a...inner side 3... Legs 31...Slide part 31a...Slide part knurling 31b...Curved part 32...Body part 32a...Main body knurling 33...Non-knurling part

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[Procedural amendment]

[Submission date] January 13, 1992

[Procedural amendment 1]

[Name of document to be amended] Specification

[Name of item subject to amendment] Claim 1

[Correction method] Change

[Correction details]

[Claim 1] In a vehicle lamp lens whose lens surface is curved and molded by performing slide punching, and whose leg portions are knurled, the vehicle lamp lens is molded by sliding punching. The knurling on the side leg portion and the knurling on the side where sliding is not performed are formed with a step difference of at least the knurling height, and the knurling on the side where sliding is performed is not performed. A curved portion is formed so that the knurling on the side that is not removed coincides with the position where each of the knurls contacts the lens surface, and the knurling on the side where the slide removal is performed among the knurls on the side where the slide removal is not performed is formed. At least one pitch of the joined portion is formed as a non-knurled portion, and the length from the inner surface of the lens where the curved portion is formed is equal to or less than the length of the joined portion of the non-knurled portion from the inner surface of the lens, A vehicle lamp lens characterized in that the pitch is one or more. ──────────────────────────────────────────────── ───

[Procedural amendment]

[Submission date] January 13, 1992

[Procedural amendment 4]

[Name of document to be corrected] Drawing

[Correction target item name] Figure 3

[Correction method] Change

[Correction details]

[Figure 3]

Claims (1)

[Scope of utility model registration request] [Claim 1] In a vehicle lamp lens whose lens surface is curved and molded by performing slide punching, and whose leg portions are knurled, the vehicle lamp lens is molded by sliding punching. The knurling on the side leg is curved so that the front end matches the knurling on the side where sliding is not performed, and the knurling on the side where sliding is not performed is performed. A non-knurling portion of one pitch is formed at the joint portion with the knurling on the side to be curved, and the length of the curved portion from the lens surface is less than or equal to the length of the non-knurling portion and greater than or equal to the one pitch. A vehicle lighting lens characterized by: