JPH0659779B2 - Sun visor body manufacturing method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for manufacturing a sun visor body in a sun visor mounted on a vehicle.

(Prior Art) Conventionally, in manufacturing a sun visor body, two skin materials are sewn together along both side edges and a bottom edge of the sun visor to form a bag body having an opened upper edge, and the bag is passed through the upper edge of the bag body. After inserting the core body into the body, the upper edge is welded by a high-frequency welder to seal the core body in the bag body, and unnecessary parts are removed to form the sun visor body.

(Problems to be Solved by the Invention) In the case of the above-mentioned manufacturing means, there is a problem that the cost is increased due to the welding process of the bag body and the welding equipment, and the protruding edge hardened by being welded to a part of the peripheral portion of the sun visor body. Therefore, there is a problem that a difference in hardness and softness occurs in the peripheral portion of the sun visor body and the appearance of the peripheral portion deteriorates.

The present invention aims to solve the above problems.

(Means for Solving the Problems) In order to solve the above technical problems, the present invention provides a sun visor body including a core body and a skin material that wraps the outer periphery of the core body, in a peripheral portion of the core body. A pair of elastic end edges are formed in an arc shape to form a slit over the entire periphery of the core body, and two skin materials are polymerized on both sides of the core body to form two slits. The end portion side of the skin material is sewn along the peripheral edge of the core body, and the sewn end edge of the skin material is turned over to form a fold-back expanded portion that is continuous in a bead shape. The present invention resides in a method of manufacturing a sun visor body configured to be inserted between the end edges of the slits so as to be prevented from coming off.

(Function) The sewn edges of both skins, which are superposed on the front and back surfaces of the core and sewn along the peripheral edge of the core, are pushed into the slits formed in the peripheral edge of the core, and the ends on both sides of this slit are pushed. When the sewn edge is flipped over and pushed into the slit, the swelled edge is continuously formed with a bead-shaped expanded portion, and the sewn edge is prevented from coming off at both edges of the slit.

(Embodiment) Next, an embodiment of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 (a), 2 and 3, the core body 1 forming the core portion of the sun visor body H is molded of synthetic resin foam material, and the periphery of the core body 1 has a length of about 1 mm. A narrow slit 2 is formed over the entire circumference, and cavities 3 and 4 are formed inside the core 1 near the peripheral edge and inside the center, respectively, and are provided on both sides of the slit 2. The pair of end edges 5 and 5 facing each other are each formed to be elastically deformable by being curved in a substantially arcuate cross section. In addition,
In this example, the core body 1 is formed by joining a pair of shell bodies formed in the same shape so as to face each other.

When manufacturing the sun visor body H, first, as shown in FIGS. 1B and 4, two cores 6 and 6 which are slightly larger than the core 1 and are cut into a shape similar to the core 1 are used. In a state in which they are superposed on the front surface and the back surface of 1 respectively, the peripheral edges of both outer skins 6 are sewn together with the endless seams 7 along the slits 2 of the core body 1, and the outer skin bag 9 in which the seam edges 8 are formed After sewing, the core body 1 is enclosed in the outer skin bag 9.

Next, as shown in FIG. 1, (c), FIG. 5, and FIG. 6, the cavity of the core body 1 is passed through the slit 2 while deforming both end edges 5 and turning around the stitching edge 8 in the vicinity of the stitching edge 8. An inflated portion 10 that is forcedly pushed into the portion 3 and turned around in the vicinity of the sewn edge 8 and expanded in the shape of a bead is formed inside the slit 2, and the seam 7 is thrust into the inside of the slit 2 to form the slit 2 The sun visor body H can be produced by sandwiching the vicinity of the proximal end of the inflated portion 10 inserted into the end portion 5 with both end edges 5 and fixing the peripheral edge portion of the epidermis bag 9 to the peripheral edge portion of the core body 1.

Next, the operation and effect of the embodiment having the above-mentioned configuration will be described.

In the present example, when manufacturing the sun visor body H, a core having two skin materials 6 on which a slit 2 is formed over the entire circumference and both end edges 5 of the slit 2 are elastically deformable. A skin bag 9 in which the peripheral edges of both skin materials 6 are sewn along the slits 2 in a state of being superposed on the front surface and the back surface of the body 1 so that the seaming edges 8 are formed in a circumferential shape and the core body 1 is enclosed. After sewn, the vicinity of the sewn edge 8 is turned inside out of the slit 2 through the slit 2 to form a fold-back expanded portion 10 continuous like a bead, and the fold-back expanded portion 10 is connected to the edge of the slit 2. 5 and the base portion of the folded back expansion portion 10 is sandwiched by both end edges 5 to prevent the folded expansion portion 10 from coming off.

Therefore, the welding step of welding the skin material at the time of sealing the core body can be eliminated, and the core body 1 can be easily sealed in the skin bag 9 to finish the peripheral portion of the skin bag 9, and the sun visor body H
There is an effect that the manufacturing cost of the sun visor body H can be reduced by simplifying the manufacturing process and the manufacturing equipment.

Further, since the vicinity of the stitching edge 8 of the skin bag 9 is inserted inward of the slit 2 and the stitch 7 is hidden inside the core body 1, the stitching edge 8 and the stitch are erased from the peripheral portion of the sun visor body H to prevent wrinkles. Since the appearance and feel of the peripheral portion of the sun visor body H can be improved over the entire circumference without causing slack and the like, the expanded portion 10 which is expanded by inverting the vicinity of the stitching edge 8 is formed inside the slit 2. , The inflatable section 1 without requiring any special locking means
It is possible to stably hold the state in which 0 is accurately prevented from coming off by both end edges 5 and the peripheral edge portion of the core body 1 is covered with the skin bag 9.

(Effects of the Invention) That is, according to the present invention, in a sun visor body including a core body and a skin material that wraps the outer periphery of the core body, an edge having an elastic performance that makes a pair with a peripheral edge portion of the core body has an arc shape. To form a slit over the entire periphery of the core body, and two skin materials are polymerized on both sides of the core body so that the end portions of the two skin materials are aligned with each other. While sewn along the peripheral portion, the sewn edge of this skin material is turned over to form a fold-back expanded portion that is continuous like a bead, and the fold-back expanded portion is inserted between the edges of the slits and pulled out. Because it can be stopped,
The welding process of welding the skin material can be eliminated to simplify the manufacturing process and manufacturing equipment of the sun visor body, and the folded and expanded portion is continuous in a bead shape by flipping the sewing edge of the skin material between the edges of the slit. Since the expansion part is formed and the expansion part is inserted to prevent the expansion part from coming off, the expansion part does not come off from the expansion part without requiring any special locking means. The visor can be wrapped without occurring, and the peripheral portion of the sun visor body can be made extremely smooth to improve the appearance and feel of the body.

[Brief description of drawings]

The drawings show an embodiment of the present invention.
(B) and (C) are plan views sequentially showing the manufacturing process of the sun visor body, and FIG. 2 is a view taken along the line X1-X1 in FIG.
3 is a sectional view taken along line X2-X2, FIG. 4 is a sectional view taken along line X3-X3 of FIG. 1 (b), and FIG. 5 is a sectional view taken along line X4-X4 of FIG. 1 (c). The drawing is an enlarged cross-sectional view of the X5 portion of FIG. 1 ... Core 2 ... Slit 5 ... Edge 6 ... Skin material 8 ... Seaming edge 9 ... Skin bag H ... Sun banza body

Claims (1)

[Claims] 1. A sun visor body comprising a core body and a skin material for enclosing the outer periphery of the core body, wherein the pair of peripheral edge portions of the core body having elastic performance are formed in an arc shape. A slit is formed over the entire periphery of the core body, and two skin materials are polymerized on both sides of the core body so that the end portions of the two skin materials are along the periphery of the core body. While sewn, the sewn edge of this skin material was turned over to form a fold-back expanded portion that was continuous in the shape of a bead, and the fold-back expanded portion was inserted between the edges of the slit so that it could be prevented from coming off. Manufacturing method of sun visor body.