JPH07101240A - Manufacture of sun visor for vehicle - Google Patents

Abstract

PURPOSE:To eliminate the troubles to adhere an exterior skin on the outer surface of core halves with adhesive, and easily manufacture a sun visor without any wrinkles or slackness on the exterior skin and with excellent appearance. CONSTITUTION:The manufacturing method consists of the core forming process where shell-shaped core halves 3 to constitute a hollow core body forming the main part of a sun visor is formed, the coating process where the outer surface of the core halves 3 is covered by an exterior skin 6, and the core connecting process where the core halves 3 are connected by elastically engaging a pair of engaging pieces 4 which are projecting in the inner surface of two core halves 3. In the coating process, the core halves 3 are set to forming molds 11, 12, and a cavity corresponding to the exterior skin is constituted between the mold surfaces of the forming molds 11, 12 and the exterior surface of the core halves 3. The exterior skin 6 made of soft synthetic resin is formed so that the outer surface of the core halves 3 may be covered by injecting the soft synthetic resin into the cavity, and at the same time, the exterior skin 6 is fixed to the outer surface of the core halves 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a vehicle sun visor.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 6 to 8, after molding a shell-shaped core half 3 ', the outer surface of the core half 3'is covered with an outer skin 6'formed by a sheet material. It is known that a hollow sun visor 1'is formed by covering the inner surfaces of the two core halves 3'and elastically engaging the engaging pieces 4 '.

In the sun visor having such a structure, the outer skin 6'is formed by cutting a sheet material into a shape corresponding to the size of the core half 3 '. And the core half 3 '
The outer skin 6 ′ is adhered to the outer surface of the core with an adhesive, and the peripheral edge of the outer skin 6 ′ is wound around the inner surface of the peripheral edge of the core half 3 ′ and adhered with the adhesive to form a core. The outer skin 6'is fixed to the outer surface of the half body 3 '.

[0004]

By the way, as described above, the outer skin 6 is formed on the outer surface of the core half 3'by an adhesive.
The work of adhering ′ ′ and winding the peripheral edge of the outer skin 6 ′ onto the inner surface of the peripheral half of the core half 3 ′ and adhering is not only troublesome and requires a lot of trouble, but also the outer skin is wrinkled and sagging. However, there is a problem in that it is apt to occur and the appearance is deteriorated.

In view of the above-mentioned conventional problems, an object of the present invention is to eliminate the troublesomeness of adhering the outer skin to the outer surface of the core half body with an adhesive, and to provide a beautiful appearance without wrinkles or slack in the outer skin. It is an object of the present invention to provide a method for manufacturing a vehicle sun visor that can easily manufacture a sun visor.

[0006]

In order to achieve the above object, the invention of claim 1 provides a shell-shaped core half body for half-dividing a hollow core body forming a main part of a sun visor. A core forming step of forming, a covering step of covering the outer surface of the core half body with an outer skin, and an elastic engagement of a pair of engaging pieces projectingly provided on the inner surfaces of the two core half bodies. And a core joining step of joining both core halves,
A method for manufacturing a vehicle sun visor comprising, in the covering step, the core half is set in a mold, and the outer skin is provided between the mold surface of the mold and the outer surface of the core half. By forming a corresponding cavity and injecting a soft synthetic resin material into the cavity, an outer skin made of the soft synthetic resin material is formed so as to cover the outer surface of the core half body. The outer skin is fixed to the outer surface of the body. Further, in the invention of claim 2, the mold surface on which the core half body is set is provided with a grain pattern.

[0007]

In the method of manufacturing a vehicle sun visor configured as described above, a cavity corresponding to the outer skin is formed between the mold surface of the mold and the core half body set in the mold. By injecting the soft synthetic resin material into the cavity, the outer cover can be fixed to the outer surface of the core half body at the same time as molding with the outer cover. Further, by applying a grain pattern on the mold surface of the molding die, simultaneously with the molding of the outer skin, a grain pattern corresponding to the mold surface of the molding die is formed on the surface of the outer skin.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 and 2, a vehicle sun visor 1 has a hollow core body 2 that forms a main body of the vehicle sun visor 1 and an outer skin 6
And is attached to the front edge portion of the ceiling surface of the vehicle compartment by the support shaft 7. The sun visor 1 is manufactured through a core forming step, a covering step, and a core engaging step.

In the core molding step, as shown in FIG. 3, shell-shaped core halves 3 formed by half-dividing the core body 2 into the front and back are molded by injection molding of synthetic resin. On the inner surface (opposing surface) of these core halves 2, a pair of engaging pieces 4 that elastically engage and a holding piece 5 that holds the engaged state of these engaging pieces 4 are formed. It is molded at the same time.

In the covering step, as shown in FIGS. 4 (a) and 4 (b), the core half body 2 is fitted to the fixed mold 11 of the pair of fixed and movable molds 11 and 12. It is positioned and set by the plugging. In this embodiment, the engaging piece 4 of the core half 3 is inserted into the recess 11a formed in the fixed mold 11.
The core half body 3 is positioned and set by fitting the holding piece 5 and the holding piece 5. After that, both molds 11 and 12 are closed. When both molds 11 and 12 are closed, a cavity 14 having a mold space corresponding to the outer skin 6 is formed between the molding surfaces of both molds and the outer surface of the core half 2 and the rear surface of the peripheral edge portion. It
In addition, the molding surface 13 of the movable molding die 12 is provided with an uneven grain pattern having an excellent design.

When both molds 11 and 12 are closed,
A soft synthetic resin material colored in a desired color is injected into the cavity 14 from the injection gate 15 of the movable mold 12. As a result, the outer skin 6 made of the soft synthetic resin material is formed so as to cover the outer surface of the core half 3 and, at the same time, the outer skin is formed on the outer surface and the peripheral surface of the core half 3. 6 are integrally fixed. Furthermore, the outer skin 6
A grain pattern excellent in design beauty is formed on the surface of.

In the final core joining step, FIG.
As shown in (b), the engaging pieces 4 of the core halves 3 forming a pair of front and back sides are elastically engaged with each other and are retained by the respective retaining pieces 5, so that both core halves 3 are Are combined, and the sun visor 1 is configured by this.

As described above, in the coating step, the outer skin 6 is injection-molded on the outer surface of the core half body 3 and is fixed at the same time, so that the outer skin 6 is bonded to the outer surface of the core half body 3 with an adhesive. The troublesomeness is eliminated, and the sun visor 1 having a beautiful appearance without wrinkles or sagging is obtained. Further, in this embodiment, by the grain pattern provided on the molding surface 13 of the movable molding die 12, simultaneously with the injection molding of the outer skin 6,
Since the grain pattern is formed on the surface of the outer skin 6, the sun visor 1 having a further excellent design is obtained.

[0014]

As described above, according to the present invention,
Since the outer skin made of soft synthetic resin material can be injection-molded and fixed to the outer surface of the core half at the same time,
Unlike the conventional method, it is possible to eliminate the trouble of adhering the outer skin to the outer surface of the core half body with an adhesive, and it is possible to easily manufacture a sun visor with a beautiful appearance that does not cause wrinkles or sagging in the outer skin. . Further, since the outer skin can be injection-molded and at the same time a grain pattern corresponding to the grain pattern formed on the molding surface of the mold can be formed on the surface of the outer skin, a sun visor having a better design can be obtained. .

[Brief description of drawings]

FIG. 1 is a sectional view showing a vehicle sun visor according to an embodiment of the present invention.

FIG. 2 is a front view showing the entire sun visor for a vehicle.

FIG. 3 is an explanatory view showing a core molding process.

FIG. 4 is an explanatory diagram showing a covering process of the same.

FIG. 5 is an explanatory diagram showing a core bonding step.

FIG. 6 is an explanatory view showing a core molding process of a conventional vehicle sun visor.

FIG. 7 is an explanatory diagram showing a coating process of the same.

FIG. 8 is an explanatory diagram showing a core bonding step.

[Explanation of symbols]

 1 Vehicle sun visor 2 Core body 3 Core half body 4 Engaging piece 6 Exterior skin 11, 12 Mold 13 Molding surface 14 Cavity

Claims (2)

[Claims] 1. A core forming step of forming a shell-shaped core half body for half-dividing a hollow core body forming a main part of a sun visor, and an outer surface of the core half body covered with an outer cover. A vehicle including a covering step, and a core connecting step of elastically engaging a pair of engaging pieces projecting on the inner surfaces of the two core halves to elastically engage the core halves. A method of manufacturing a sun visor for use, wherein in the coating step, the core half is set in a mold, and a cavity corresponding to the outer skin is formed between the mold surface of the mold and the outer surface of the core half. By injecting a soft synthetic resin material into the cavity, an outer skin made of the soft synthetic resin material is formed so as to cover the outer surface of the core half body, and at the same time, the outer surface of the core half body is formed. The outer skin is fixed to the Manufacturing method for a vehicle sun visor. 2. The method for manufacturing a vehicle sun visor according to claim 1, wherein the mold surface on which the core half is set has a grain pattern.