JP2003182356A - Visor for automobile and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a manufacturing cost by omitting a secondary working such as chamfering or the like. <P>SOLUTION: The visor 1a comprises a visor body 20 constituted of a eaves body 3 formed in a long-sized strip-like state along an upper side of a window frame 10 of an automobile, and a collar 2 connected along an upper edge of the body 3, and a strip-like member 21 provided along the lower edge of the part of the peripheral edge of the body 20. The visor 1a further comprises a locking protrusion 6 substantially perpendicular to an inner surface provided on an upper inside part of the body 3. The body 20 is formed of a hard synthetic resin such as, for example, an acrylic resin. The member 21 is formed of a soft synthetic resin such as, for example, a low-density polyethylene, an intermediate-density polyethylene or a thermoplastic elastomer having a rubber- like elasticity or the like. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile visor such as a side visor attached to an automobile and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, as a visor for an automobile (hereinafter referred to as a visor) attached to an automobile, a wide eaves body,
There is a visor in which a collar body continuously provided along the upper edge portion is integrally formed by injection molding, and the collar body is fixed to a mounting portion of an automobile with a double-sided adhesive tape.
Some of such visors are injection-molded by a visor mold using a punching die (conventional example 1) such that the cross-section of the visor peripheral end portion has a round shape or an R shape, or the peripheral edge after visor molding. As in the case where the part is covered with a soft body such as a separate molding (conventional example 2), the corners of the visor's peripheral end are rounded or softened, for example, when a car wash or a visor is attached or detached. , Visors are known that have improved safety so that they will not be injured even if they are hit by an exposed hand or arm.

[0003]

However, in the visor of Conventional Example 1, there may be a case where a protrusion such as a burr is formed on the mating surface of the mold at the time of injection molding, and the safety can be secured only by molding. However, it was necessary to carry out secondary processing such as chamfering and deburring. In addition, in the visor of Conventional Example 2, in addition to injection molding, it was necessary to perform secondary processing in which a soft body such as a molding was attached to the peripheral end portion of the visor. As described above, both visors require secondary processing to ensure safety at the peripheral edge of the visor, which causes a problem of increased manufacturing cost.

In view of these problems, it is an object of the present invention to provide an automobile visor which can reduce the manufacturing cost by omitting the secondary processing such as chamfering processing.

[0005]

A vehicle visor according to the present invention is a vehicle visor in which a collar body is continuously provided along an upper edge of a long strip-shaped eave body. The visor body is made of a hard synthetic resin, and a band-shaped body made of a synthetic resin softer than the visor body is provided on at least a part of the periphery of the visor body.

An automobile visor according to a second aspect of the present invention is configured by fusing a visor body and a band-shaped body together.

An automobile visor according to a third aspect of the present invention is configured such that the joint surface between the visor body and the belt-like body is formed in a concave-convex fitting shape.

In the visor for automobiles according to the fourth aspect of the present invention, the soft synthetic resin contains low density polyethylene, medium density polyethylene or thermoplastic elastomer.

A method of manufacturing an automobile visor according to a fifth aspect of the present invention is the method of manufacturing an automobile visor according to the first aspect, wherein the visor body is molded with a hard synthetic resin and then A step of integrally molding the band-shaped body with a soft synthetic resin, or after molding the band-shaped body with a soft synthetic resin,
A process of integrally molding the visor body with a hard synthetic resin is used.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of an automobile visor (hereinafter referred to as a visor) according to the present invention. The visor 1a includes an eaves main body 3 formed in a long strip shape along an upper side portion of a window frame 10 of an automobile, and the eaves main body 3
The visor body 20 is constituted by the collar body 2 connected along the upper edge of the visor body 2. At the lower end edge which is a part of the peripheral edge of the visor body 20, the strip-shaped body 21 is formed along the lower end edge.
Is provided. On the inner upper portion of the eaves main body 3, a locking projection 6 that is substantially vertical to the inner surface is provided. The visor 1a is
It is attached in contact with the window frame 10 of the automobile. The visor body 20 is formed of a hard synthetic resin such as an acrylic resin. The band-shaped body 21 is formed of a synthetic resin softer than the visor body 20, such as low-density polyethylene, medium-density polyethylene, or a thermoplastic elastomer having rubber-like elasticity.

In the visor 1a having the above-described structure, only one of the visor body 20 and the belt-shaped body 21 is formed in advance, and the other visor body 20 or the belt-shaped body 21 is added later, whereby the visor body 20 and the belt-shaped body 2 are added.
1 and 1 are integrally formed. Hereinafter, an example of the forming process will be shown with FIG. 2A to 2E are schematic cross-sectional views showing an example of a molding process by a two-station type rotary injection molding machine using two kinds of resin molding methods.

That is, when molding the visor 1a by a rotary injection molding machine, the visor body 20 and the belt-shaped body 21 are used.
The whole part mold 25 and the common mold 27 are used to mold the whole visor 1a, and the main part mold 26 and the common mold 27 are used to mold only the visor body 20. Is used. Overall mold 25 and common mold 27
Forms a cavity 41 (see FIG. 2D) obtained by stamping out the entire visor 1a in a state where the two dies are matched with each other. Further, the main body mold 26 and the common mold 27 form a cavity 40 (see FIG. 2A) in which only the visor main body 20 is die-cut in a state where the two dies are matched.

A parting part is provided on the peripheral portions of the cavities 40 and 41, and in a state where the parting part is divided into two parts, the whole part mold 25 and the main body part mold 26 are mounted on the automobile with the visor 1a. The hollow surface on the side of the automobile is formed. In a similar state, the common mold 27 forms the outer cavity surface of the visor 1a and is commonly used to form the cavity portions 40 and 41. In this rotary injection molding machine, a mold 25 for the whole part and a mold 26 for the main body are fixed to an upper table 30 which is vertically movable, and a common mold 27 is provided.
Is fixed to a lower table 31 that can be horizontally moved and horizontally rotated.

In the rotary injection molding machine, the upper table 30 is moved downward to bring the main body mold 26 and the common mold 27 into a matched state to form a cavity 40. Only the visor body 20 made of hard synthetic resin is molded by injection of the nozzle B using the cavity 40 (step (a)). Next, the upper table 30 is moved upward,
With the main body mold 26 and the common mold 27 opened, and the visor main body 20 formed on the common mold 27 is placed, the lower table 31 is horizontally moved directly below the whole mold 25. (Step (b)). The lower table 31 that has moved to directly under the whole-body mold 25 is horizontally rotated 180 degrees (step (c)).

Then, the upper table 30 is moved downward to bring the whole mold 25 and the common mold 27 into a matched state. A cavity 42 is formed by molding the belt-like body 21 by the whole-section die 25, the common die 27, and the molded visor body 20, and the cavity 42 is used to eject a soft synthetic resin from the nozzle A by injection. The belt-shaped body 21 is formed, and the visor body 20 and the belt-shaped body 21 are integrally molded by die connection (step (d)). Next, the upper table 30 is moved upward, and the visor 1a that has been molded is taken out (step (e)). After that, the steps (a) to (e) are repeated. Through the above steps, the strip 21 is integrally formed with the visor body 20.

Here, after the visor body 20 is molded on the joint surface 22 of the visor body 20 with the strip-shaped body 21,
Before the band-shaped body 21 is molded, a bonding agent made of a thermoplastic resin is applied. Next, when the band-shaped body 21 is molded, the bonding agent is melted by the heat of the soft synthetic resin poured,
The visor body 20 and the band-shaped body 21 are fused together with the joint surface 22 aligned.

The visor 1a is shown in FIGS. 3 (a) and 3 (b).
As shown in FIG. 3, a band-shaped mold 28 and a common mold 27 are used to mold only the band-shaped body 21 (FIG. 3 (a)), and a visor including the visor body 20 and the band-shaped body 21. 1a and a common mold 2 for molding the whole part 1a
7 (FIG. 3 (b)) may be used for molding. In this case, only the belt-like body 21 is preformed and then the visor body 2
0 is added to integrally form the visor body 20 and the belt-like body 21.

Here, when the above-mentioned visor 1a is attached to the window frame 10 of an automobile, as shown in FIG. 1, the engaging portion 12 having a substantially U-shaped cross section is engaged and sandwiched by the inner edge 11 of the window frame.
A mounting bracket 9 having a locking hole 4 for locking the locking projection 6 of the visor 1 a is interposed between the window frame 10. With this mounting member 9, the locking projection 6 of the visor 1 a is locked in the locking hole 4 of the mounting member 9. The collar body 2 of the visor 1a has a window frame plane portion 10a of the window frame 10 with a double-sided adhesive tape 7 interposed therebetween.
Glued to. Then, the window frame inner edge 11 of the window frame 10 is sandwiched by the engaging portions 12 of the mounting bracket 9, so that the visor 1 a is attached to the window frame 10. 13 is a door glass run, and 14 is a door glass.

According to the visor 1a, the visor body 20 is composed of the eaves body 3 and the collar body 2, and the visor body 20 is made of hard synthetic resin, and at least a part of the periphery of the visor body, that is, the lower end. Since the strip-shaped body 21 formed of a synthetic resin softer than the visor body 20 is provided at the edge, the sharp edge portion of the peripheral edge can be softened. Therefore, when the exposed hand or arm hits the lower edge of the visor 1a, injury can be prevented,
The safety of the visor 1a can be improved. Also,
Even if a protrusion such as a burr is formed on the mating surface of the mold at the bottom edge during injection molding, the protrusion is soft, so chamfering to ensure safety It is possible to secure safety only by the molding process without performing secondary processing such as deburring. Therefore, the secondary processing can be omitted and the manufacturing cost can be reduced.

Next, since the visor body 20 and the band-shaped body 21 are fusion-bonded to each other by the mold connection, at the joint surface 22 of the visor body 20 and the band-shaped body 21, both parts 20 and 21 can be integrally molded without any gap. You can get a nice aesthetic. In addition, it is possible to improve the joint strength at the joint surface 22 and the durability of the visor 1a by the integral molding by fusion. Further, since the band-shaped body 21 is formed by using low density polyethylene, medium density polyethylene or thermoplastic elastomer, good soft characteristics can be obtained.

Further, the visor body 20 is molded with a hard synthetic resin, and then the belt-shaped body 21 is molded with respect to the visor body 20 with a soft synthetic resin, and the visor body 20 and the belt-shaped body 21 are connected by a mold. Since they are fused and integrally formed, the bonding surface 22 of the visor main body 20 formed into a desired accurate shape can be maintained while maintaining its original shape.
It can be used as a boundary line with 1. Therefore, the boundary line between the visor body 20 and the band-shaped body 21 of the visor 1a can be reliably formed with high dimensional accuracy,
It can be provided as a part of the appearance of the visor 1a clearly and with good appearance.

The joining surface 22 between the visor body 20 and the belt-like body 21 of the visor 1a may be formed so as to be an inclined surface with respect to the visor surface, as in the visor 1b of FIG. The area can be increased to improve the bonding strength. In addition, as in the visor 1c of FIG. 5 and the visor 1d of FIG. 6, the joint surface 22 may be formed into a curved surface or may be formed into a staircase shape, and the joint strength is improved similarly to the visor 1b. Can be made.
Further, as in the visor 1e of FIG. 7, the joint surface 22 may be formed in a concave-convex fitting shape, the joint area is increased to improve the joint strength, and the concavo-convex clamping force is applied to further improve the joint strength. be able to.

The present invention is not limited to the above-described embodiments, but as will be enumerated below, the shapes and configurations of the respective portions can be appropriately changed and implemented without departing from the spirit of the present invention. . (1) Applying the automobile visor according to the present invention to various automobile visors such as side visors, front visors, sunroof visors, back visors, front visors, and motorcycle hoods. (2) The strip 21 is formed of a transparent, semitransparent, or colored synthetic resin. This can enhance the design of the visor. (3) The band-shaped body 21 is provided not only on the lower end edge of the visor body 20 but also on the entire peripheral edge or the other end edge that is easy to touch. By doing so, the safety of the visor can be further improved. (4) As in the visor 1f of FIG. 8, the band width L1 of the band-shaped body 21 is set to the band width L2 of the eaves main body which constitutes the visor main body 20.
Be formed with a band width of 0.1 to 1.0 times.

[0024]

As described above in detail, according to the invention of claim 1, the visor body is composed of the eaves body and the collar body, and the visor body is made of a hard synthetic resin, and the peripheral edge of the visor body is formed. Since a band-shaped body formed of a synthetic resin softer than the visor body is provided on at least a part of the above, it is possible to soften the acute-angled portion of the peripheral edge. Therefore,
For example, when an exposed hand or arm hits the periphery of the visor, it is possible to prevent an injury and improve the safety of the visor. In addition, during injection molding, even if a protrusion such as a burr is formed on the mating surface of the mold, the protrusion is soft, so chamfering processing for ensuring safety and It is possible to secure safety only by the molding process without performing secondary processing such as deburring. Therefore, the secondary processing can be omitted and the manufacturing cost can be reduced.

According to the second aspect of the present invention, since the visor body and the belt-like body are fused together, both parts can be integrally molded at the joint surface between the visor body and the belt-like body without any gap to obtain a good aesthetic appearance. You can In addition, the integral molding by fusion can improve the bonding strength at the bonding surface and enhance the durability of the visor.

According to the third aspect of the present invention, since the joint surface between the visor body and the belt-shaped body is formed in the concave-convex fitting shape, the joint area can be increased and the joint strength can be further improved.

According to the fourth aspect of the present invention, since the band-shaped body is molded by using the low-density polyethylene, the medium-density polyethylene or the thermoplastic elastomer as the soft synthetic resin, good soft characteristics can be obtained.

According to the invention of claim 5, the step of molding the visor body with a hard synthetic resin and then integrally molding the belt-shaped body with a soft synthetic resin on the visor body, or After molding with a soft synthetic resin, the step of integrally molding the visor main body with the hard synthetic resin to the above-mentioned band-shaped body was used, so joining the visor main body and the band-shaped body molded into the desired accurate shape The faces can be used as boundaries while maintaining their original shape. Therefore, the boundary line between the visor body and the strip can be reliably formed with high dimensional accuracy, and can be provided as a part of the appearance of the visor clearly and with good appearance.

[Brief description of drawings]

FIG. 1 is a sectional view of an essential part showing an embodiment of an automobile visor according to the present invention.

FIG. 2 is a schematic cross-sectional view illustrating the molding process of the automobile visor of FIG.

FIG. 3 is a schematic cross-sectional view illustrating another molding step of FIG.

4 is a cross-sectional view of a main part showing another joint surface shape of the automobile visor of FIG.

5 is a cross-sectional view of an essential part showing another bonding surface shape of the automobile visor of FIG. 1. FIG.

6 is a cross-sectional view of a main part showing another joint surface shape of the automobile visor of FIG.

7 is a cross-sectional view of a main part showing another joint surface shape of the automobile visor of FIG.

FIG. 8 is a cross-sectional view of main parts showing a modified example of FIG.

[Explanation of symbols]

1a, 1b, 1c, 1d, 1e, 1f ... Visor, 2
..Collar bodies, 3. Eaves body, 3a..Upper edge, 10..Window frame, 7..Double-sided adhesive tape, 20..Visor body, 2
1 ... Band, 22 ... Joining surface

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Shuji Sato             Tamura, 2-173 Ogigahigashi, Komaki City, Aichi Prefecture             Within Plastic Products Co., Ltd. (72) Inventor Tatsuo Iwata             Tamura, 2-173 Ogigahigashi, Komaki City, Aichi Prefecture             Within Plastic Products Co., Ltd.

Claims (5)

[Claims] 1. A visor for an automobile, wherein a collar body is continuously provided along an upper edge of a long strip-shaped eaves body, wherein the visor body composed of the eaves body and the collar body is made of a hard synthetic resin. A visor for an automobile, characterized in that a belt-shaped body formed of a synthetic resin softer than that of the visor body is provided on at least a part of a peripheral edge of the visor body. 2. The visor for automobiles according to claim 1, wherein the visor body and the belt-shaped body are fused together. 3. The automobile visor according to claim 1 or 2, wherein a joint surface between the visor body and the belt-shaped body is formed into a concave-convex fitting shape. 4. The soft synthetic resin contains low-density polyethylene, medium-density polyethylene or thermoplastic elastomer, as claimed in any one of claims 1 to 3.
An automobile visor according to any one of 1. 5. The method for manufacturing an automobile visor according to claim 1, wherein the visor body is molded with a hard synthetic resin, and then the belt-shaped body is integrally formed with the visor body with a soft synthetic resin. A step of molding, or a step of molding a strip-shaped body with a soft synthetic resin, and then integrally molding the visor body with a hard synthetic resin with respect to the strip-shaped body. Production method.