JPH079850A - Manufacture of sunvisor body - Google Patents

Abstract

PURPOSE:To simplify the manufacturing process of a sunvisor body by thermal- shrinking a thermal shrinkage sheet of intermediate product where a skin and the thermal shrinkage sheet are jointed to each other along a sheet superposed peripheral part at the front and back of a core body, and connecting half divisions which are formed by wrapping the peripheral part of the skin in the back side of the core body with the wrapped-in parts superposed. CONSTITUTION:The peripheral edges of skins 3 superposed on the front side of a core body 2 and the peripheral part of a thermal shrinkage sheet 4 superposed on the back side of the core body 2 are jointed to each other to form an intermediate product. By thermal-shrinking the thermal shrinkage sheet 4 of intermediate product, a pair of half divisions 1 where a wrapped-in part 10 is formed at the peripheral edge of the skin 3 are formed, where the respective half divisions 1 are connected so as to face each other. As a result, wrapping work that the peripheral edge of the skin 3 is wrapped in the back side of the peripheral part of the core body 2 and bonding work can be eliminated, so it is possible to reduce the manufacturing number of a sunvisor body H for manufacturing cost reduction in the sunvisor body H. The whole body of the skin 3 is expanded uniformly, so it is possible to eliminate slackness and wrinkles in the skin 3, and improve and equalize covering conditions and peripheral part conditions.

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 sun visor body for a vehicle sun visor.

[0002]

2. Description of the Related Art In manufacturing a sun visor body for a vehicle sun visor, which has a structure in which a pair of cores each covered with a skin are joined face to face, a pair of sun visors is conventionally manufactured as shown in FIG. The peripheral edge portions of both core bodies 51 are folded back by folding the peripheral edge portions of both skins 50 covering core body 51.
A pair of halves 52 are produced by winding them on the back side of a and adhering to the peripheral edge portion 51a with an adhesive, and then joining both core bodies 51 of the halves 52, as shown in FIG. As described above, after connecting the pair of core bodies 51,
1 skin is covered with two skins 50, and both skins 5
The peripheral portion of 0 is welded by a high frequency welder and the welded portion 5
3 was formed and both core bodies 51 were enclosed in both epidermis 50.

[0003]

In the method shown in FIG. 5, there is a problem that the work of winding the peripheral portion of the skin 50 is complicated and the number of working steps increases, and in the method shown in FIG.
3 meanders and the welded portion 53 has a burr shape. The present invention aims to solve the above problems.

[0004]

According to the present invention, in the production of a sun visor body, a peripheral portion of the outer skin is obtained in a state in which a front skin of the core body is superposed on the front skin and a heat shrinkable sheet is superposed on the back side of the core body. And a step of joining the peripheral part of the heat-shrinkable sheet along the peripheral part of the core body to produce an intermediate product, and heat-shrinking the heat-shrinkable sheet of the intermediate product to form a peripheral part of the skin. A pair of half-divided bodies is produced by a step of rolling up the core body on the back side and forming the roll-up portion on the peripheral portion of the skin, and then, with the both half-folded bodies being overlapped with each other. It is characterized by being combined.

[0005]

[Operation] A pair of intermediate portions is formed by the process of joining the peripheral edge portion of the skin superposed on the front side of the core body and the peripheral edge portion of the heat-shrinkable sheet superposed on the back side of the core body along the peripheral edge portion of the core body. Make a product. By heat-shrinking the heat-shrinkable sheets of the two intermediate products, the wound portion wound on the back side of the core body is formed in the peripheral portion of the outer skin to produce a pair of half-divided bodies having the wound portion, The two halves are combined so that the two winding portions are superposed on each other to manufacture the sun visor body.

[0006]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, there is no need for the work of winding the peripheral edge of the outer skin to the back side of the peripheral edge of the core or the work of adhering, thereby reducing the number of manufacturing steps of the sun visor body. Simplifies the manufacturing process of the sun visor body,
The manufacturing cost of the sun visor body can be reduced.
In addition, the heat-shrinkable sheet with the peripheral edge of the epidermis is similarly pulled to the back side of the core body over the entire circumference and evenly spreads the entire epidermis, so that the slack and wrinkles of the epidermis are eliminated and the epidermis covering form and epidermis are removed. It is possible to improve and shape the shape of the peripheral portion of the sun halves, improve the appearance of the peripheral portions of both halves, and improve the appearance of the sun visor body.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to FIGS. Vehicle sun visor body H
Is a core body 2 formed of a hard synthetic resin material into a shape in which the sun visor body H is divided into two, and a peripheral edge portion 3a is wound around the front surface side of the core body 2 on the back surface side of the peripheral edge portion of the core body 2. The heat-shrinkable sheet 4 in which the peripheral surface 4a is superposed on the back surface of the core body 2 in a heat-shrinked state and the peripheral edge portion 4a is bonded to the peripheral edge portion 3a of the external skin 3 over the entire circumference thereof.
And a pair of half halves 1 each including and are connected face to face.

A connecting portion 5 having a through hole 5a is formed in the core body 2 of one of the two half-divided bodies 1, and a conical portion is formed at the tip of the core body 2 of the other half-divided body 1. A coupling portion 6 having a retaining portion 6a which is elastic and deformable is formed.

When manufacturing the sun visor body H, first,
The outer skin 3 which is cut to a size slightly larger than the outer shape of the core body 2 according to the contour shape of the core body 2 and is stretchable is superposed on the front side surface of the core body 2 by curving the curved surface shape according to the curved surface shape. 3, a heat shrinkable sheet 4 having a similar shape to that of the core body 2 is placed on the back side of the core body 2, the core body 2, the skin 3 and the heat shrinkable sheet 4 are set in the joining device 7 and the peripheral portion of the skin 3 is set. And the peripheral edge of the heat-shrinkable sheet 4 are joined together along the peripheral edge of the core body 2 over the entire circumference, and the peripheral edge of the skin 3 and the peripheral edge of the heat-shrinkable sheet 4 are joined to form an endless shape. Intermediate product 9 in which the core body 2 is enclosed in the bag body having the bonded joint edge 8
And a pair of intermediate products 9 are produced for both core bodies 2 in the same process.

As means for joining the skin 3 and the heat-shrinkable sheet 4, high-frequency weld, ultrasonic weld, adhesion, heat shield, stitching, etc. are applied.

As the heat-shrinkable sheet, a heat-shrinkable polyethylene film, a PVC film or the like, whose size shrinks by 30 to 50% by heating, is applied.

Next, the intermediate product 9 is heated to the shrinking temperature of the heat-shrinkable sheet 4 to heat-shrink the heat-shrinkable sheet 4, so that the peripheral edge portion 3a of the skin 3 is shrunk. The skin 3 is generally stretched by pulling it toward the center of the body 2, and the peripheral edge of the skin 3 is rolled into the back side near the peripheral edge of the core 2 to form the rolled-in portion 10 on the peripheral edge of the skin 3, A half-split body 1 in which the front surface of the core body 2 is covered with the skin 3 while the peripheral portion of the skin 3 is wound around the back side of the core body 2 to form the rolled-in portion 10 is produced. The body 1 is manufactured in the same process for both core bodies 2.

Next, the pair of halves 1 are joined to each other by joining the connecting portions 5 and 6 of the two cores 2 to each other.
When the two winding portions 10 are overlapped and face-to-face coupled to each other, the two core bodies 2 are coupled to each other and the front and side surfaces of the two core bodies 2 are covered with the skins 3, respectively. It is possible to manufacture the sun visor body H having a structure in which the heat-shrinkable sheets 4 are superposed by being sandwiched between the peripheral portions of the two core bodies 2 and hidden inside the half body 1.

Next, the operation and effect of the embodiment having the above-mentioned structure will be described. In this example, when the sun visor body H of the vehicle sun visor is manufactured, the outer skin 3 is superposed on the front side of the core body 2 and the heat-shrinkable sheet 4 is superposed on the back side of the core body 2 in the peripheral portion of the outer skin 3. A step of joining the peripheral edge of the heat-shrinkable sheet 4 along the peripheral edge of the core body 2 to produce the intermediate product 9; A pair of halves 1 are produced by a process of winding the parts on the back side of the core body 2 and forming the winding part 10 on the peripheral edge of the skin 3.
Are configured to be coupled in a state where both the winding portions 10 are overlapped.

Therefore, the work of winding the peripheral edge of the outer skin 3 to the back side of the peripheral edge of the core body 2 and the work of adhering the same are unnecessary,
It is possible to reduce the number of manufacturing steps of the sun visor body H, simplify the manufacturing process of the sun visor body H, and reduce the manufacturing cost of the sun visor body H.

Further, the heat-shrinkable sheet 4 having the peripheral edge of the skin 3 contracted to the back side of the core body 2 over the entire circumference in the same manner and the whole skin 3 spreads uniformly, so that the slack and wrinkles of the skin 3 It is possible to improve the appearance of the peripheral part of both halves 1 by improving the appearance of the peripheral part of the skin 3 and improving the appearance of the sun visor body H.

[Brief description of drawings]

FIG. 1 is a side sectional view of a sun visor body showing an embodiment of the present invention.

FIG. 2 is a side sectional view illustrating a step of joining a skin and a heat-shrinkable sheet.

FIG. 3 is a side sectional view of a pair of intermediate products.

FIG. 4 is a side sectional view of a pair of halves.

FIG. 5 is an exploded side sectional view of a conventional sun visor body.

FIG. 6 is a side sectional view of a conventional sun visor body.

[Explanation of symbols]

 1 Half-divided body 2 Core body 3 Skin 4 Heat-shrinkable sheet 9 Intermediate product 10 Rolling part

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Claims (1)

[Claims] 1. A peripheral portion of the outer skin and a peripheral portion of the heat-shrinkable sheet of the core body in a state where the outer skin is superposed on the front side of the core body and the heat-shrinkable sheet is superposed on the back side of the core body. A step of producing an intermediate product by joining along the peripheral edge part, and heat-shrinking the heat-shrinkable sheet of the intermediate product to wind the peripheral edge part of the outer skin to the back side of the core body, and wrap it around the peripheral part of the outer skin. A method for manufacturing a sun visor body, characterized in that a pair of half halves is produced by a step of shaping the parts, and then the two half halves are joined in a state where the both winding parts are overlapped.