JPS6082462A - Bag skin molded ceiling - Google Patents

Abstract

PURPOSE:To improve the assembling performance thus to produce a light weight a molded ceiling having high rigidity, by molding the lining of car ceiling such that an iron core frame, pad and skin are vacuum molded to form a bag with skin at the rear side of frame. CONSTITUTION:A skin 1 of polyvinyl chloride and blowing polyethylene pad 2 are laminated 3 through intrusion molding in process (a). Then an iron core frame 4 is manufactured in accordance to the shape of roof to be applied on the pad 2 of laminate 3. Then it is heated in process (c) by a heater 5 to bring said pad 2 into semi-fused condition thereafter, it is vacuum sucked by metal dies 6, 7 in process (d) to adhere the pad 2 to the iron core frame 4. Thereafter, in process (e), the skin 1 is folded to the rear side of said frame 4 to be contained in a skin 1 bag and a welding margin 8 is thermally welded in process (f).

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a molded ceiling containing a core material used for lining the ceiling of automobiles and the like.

[Prior art]

Typical Sakaki-style ceilings seen today include suspended ceilings, sweet ceilings, and molded ceilings. The main components of a suspended ceiling are a skin and a listing wire that suspends it.Although it is still often used today, the ends of the skin are glued directly to the body flanges of the front windows, rear windows, and door openings and positioned. In many cases, the material is finished by applying crib roughing or directly lowering it into the awning trim or weather strip 7, which increases the number of steps required for the work.

The ceiling is a two-layer laminated product that combines a soundproofing and heat-insulating pad material and a skin.To attach it to the body, use adhesive on the iron and metal side of the roof and glue it in contact with the roof. Since the terminal is inserted into the site rail, there is no need to finish the ends, but in many cases, because sheet-like pads are attached, the outer roof panel is prone to strong bending, and it is inconvenient if there is an I-fold, etc. There are restrictions.

The molded ceiling is composed of a core material and a skin, and the integrally molded one is easy to work with since the molding cut points are tightened with bolts along the curve of the ceiling. In many cases, materials such as metal lath, felt tubular, glass wool, and polystyrene foam with a percentage of cardboard are used as the core material, which is inserted using the elasticity of the core material. The mold cannot be expected to prevent sagging, and the rigidity of the material itself is required, so it is not possible to reduce the weight using metal lath, felt cloth, glass core, cardboard, or foamed polystyrene.

[Purpose of Departure]

The present invention was made in order to solve the above-mentioned problem 10J. The purpose is to .

[Structure of the invention]

That is, the bag-like skin 1Q sleeve 4 molding of the present invention is made by integrally molding an iron core frame according to the shape of the roof, and a laminated material consisting of a pad and a skin wider than the pad. It is characterized in that the iron core frame is wrapped in a strand-shaped outer skin extending from the back side of the L frame.

The iron core frame t in the invention is usually formed from steel wire of additional thickness, but if necessary, it may be formed using a shape such as a rectangular cross section.

The frame is usually formed by joining or welding the joints, but it may also be formed by a conventional method such as bending and compressing the joint ends. Further, the pad used in the present invention is selected from felt, latex foam, polyethylene foam, polyurethane foam, etc., and the skin is a material that protects the pad by treating the surface of the ceiling and has the effect of enhancing the design effect of the interior of the car. .

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings.

〔Example〕

FIG. 1 shows the manufacturing process of the molded ceiling of the present invention, with a thickness of 0.
A laminate 3 is obtained by extrusion molding in step (a) using a skin 1 made of a 2 mm 0 calendered polyvinyl chloride sheet and a band 2 made of foamed polyethylene with a thickness of 2.0 mm. - Using a steel forest with a diameter of 2 mm, the length is 1.5 m to match the peripheral shape of the roof.
The 1.3-meter frame was made into an iron core frame 4 with three dead wood electric wires that fit into the curved part that fits the concave shape of the roof. K on pad 2 of laminate 3? + Overlap the iron core frame 4 described in I.

In the process (when the heater 5 is heated in /9, the pad 2 is in a molten state, and the process begins), the mold 6 is heated.
．． 7, the pad 2 is fused to the iron core frame 4 when vacuum forming is performed by sucking the wall from the side of the mold 6. Process (e)
In step (2), the outer skin 1 is bent to the back side of the iron core frame 4, so that the iron core frame 4 can be wrapped in the outer skin 1 in a bag shape, and in the step (2), the gluing margin 8 is bonded in a hot bath.

Figure 2 shows a perspective view of the molded ceiling of the present invention.Both 911d on the left and right sides of the vehicle body are wrapped in the skin 1 and have kinks 1, so there is no need for final treatment, and the front terminal is a simple suspended ceiling. Scraps in the header trim as well.

The assembly to the vehicle is carried out using seats and bolts installed on the iron core frame 4.

As mentioned above, since the core material of the molded ceiling of the present invention is Wi wire, there was almost no sagging even in the side heat test at 85℃ for 72 hours while it was attached to the car body. We were able to suppress the distance to within 7 mm.

〔Effect of the invention〕

As shown above, in the molded ceiling of the present invention, the left and right ends of the vehicle are wrapped around, so the roof sight rail and garnish become small bags. It is extremely easy to assemble because it can be assembled at the same cost as a simple suspended ceiling.

In addition, since the frame is made of an iron core, the ceiling maintains its integrity even under the scorching midsummer sun, unlike conventional laminated core materials such as cardboard and foamed polystyrene that do not deform.

[Brief explanation of the drawing]

FIG. 1 shows a manufacturing process diagram of an embodiment of the present invention, and FIG. 2 shows fAL congratulation 1 of the embodiment of the present invention. In Q, 1...Skin 2...Pad 3...Laminate 4...Iron core frame 5...Heater 6, 7...Mold 8...r Follow the valley

Claims (1)

[Claims] It is integrally formed by vacuum forming using an iron core frame assembled to match the shape of the roof, a laminated material consisting of a pad and a wide outer skin, and the iron core frame extends to the back side of the frame. A bag-like epidermis characterized by being wrapped in a bag-like shape (by the epidermis) ≠ each molded ceiling.