JPS5836739A - Manufacture of trunk room trim - Google Patents

Abstract

PURPOSE:To make it possible to assemble a trim with one touch in an assembling site by independently forming each of laminate boards corresponding to the shapes of the floor surface and surrounding wall surface of a trunk room and by making it possible to freely fold and unfold them. CONSTITUTION:Each of laminate boards 10, comprising a skin material 11 and a core material 12, is independently trim cut by press work while suiting them to the shape of each location within a trunk room. A portion near the overlapped position of pieces 21a, 22a to be overlapped in the junction edges of a floor part 20 and a rear part 21, and the floor part 20 and a flont part 22 and a portion near a piece 23a to be overlapped in the junction edge of the floor part 20 and a side part 23 are respectively subjected to scoring work. And these scored portions respectively form hinges 30, 30, and said each part can be freely folded and unfolded taking said hinge parts as a base. Further, scoring work is also performed for appropriate positions of both side parts 23, and the side parts 23 can be folded as hinges 32....

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a trunk room trim, and more particularly to a method of manufacturing a trunk room trim that is integrated into an expanded shape to match the interior of a trunk room.

Recently, even in the trunk room of a passenger car, a trim member has been installed on the inner panel of the trunk room.

FIG. 1 shows the trunk room 2 of the automobile 1 and the trunk room trim 3 disposed therein. It is divided into a finisher 4, a trunk rear finisher 5, a trunk side finisher 6, 6, and a trunk floor finisher 7. Each of these members has a core material covered with a surface material such as carpet. It consists of a combination of flat parts and molded parts.

However, in the trunk room trim in which each member is formed separately to match the shape of each part of the trunk room 2, the number of parts is large because each member is formed separately as described above. Further, when each member is assembled on an automobile assembly line, each member must be attached and assembled separately in the trunk 2 of the automobile 1, which has the disadvantage of requiring a large number of assembly steps.

The present invention has been made in order to improve the drawbacks of the conventional split structure type trunk room trim as described above, and is a method for manufacturing a trunk room trim that is integrally formed in an expanded shape to match the three-dimensional shape of the trunk room of an automobile. It provides:

Hereinafter, one embodiment of the present invention will be described in accordance with its manufacturing order.
This will be explained with reference to the drawings below.

What is shown in FIG. 2 is a laminate board 10 to which the present invention is applied. It is composed of a core material 12.

The skin material 11 may be, for example, a carpet, a woven fabric, a non-woven fabric,
Or it is made of a material such as vinyl chloride,
An appropriate selection can be made from these.

The core material 12 is a press board, a composite resin board (a board made of polyolefin mixed with wood powder as a filler), a hollow core board made of a plastic material, etc. Various types can be selected from among them depending on the purpose. For example, when weight reduction is required, the constituent material of the core material 2 is:
A hollow core board is optimal, and if rigidity is required, it can be constructed of a press board or a composite resin board, which can be combined with the skin material 11 described above to form laminates of various materials. Board 10 can be provided.

Then, the laminate board 10 is trim-cut separately by press working to match the shape of each side of the trunk room 2, that is, the shape of the floor, front part, rear part, and both side parts in the trunk room 2.

FIG. 3 shows the trim-cut laminate board, which is divided into a floor portion 20, a rear portion 21, a front portion 22, and both side portions 23° and 23°.

H5 Also, inside the upper cover part 20 is a substantially circular cutout 20a.
A spare tire cover 24 is formed surrounded by.

Although not shown, the spare tire cover 24 is intended to cover the spare tire stored on the lower surface of the trunk room 2 and to make its surface flush with the floor portion 20.

Among the members divided into four parts, the rear part 21,
Front part 22, side part 23 and the floor part 20
At the joining edge of the rear part 21 and the front part 2,
2 and the side portion 23 are polymerized pieces 21a, 22a,
, 23a are formed in a protruding state.

Further, the luggage compartment trim formed as a separate member in the developed shape of the product is foil-stamped at the necessary locations at the same time as the above-mentioned trim cutting. Examples of processing means in this case include hot press molding or hot stamping using high frequency welding.

The surface-embossed parts in this case will be explained using FIG. 3. The floor part 20 and the rear.

Surface presses are provided in the vicinity of the overlapping portion of the overlapping pieces 21a and 22a at the joint edge of the floor part 20 and the front part 22, and in the vicinity of the overlapping piece 23a at the joint edge of the floor part 20 and the side part 20, respectively. After processing, these parts become hinges 30, 30 (indicated by chain lines in the figure), respectively, so that each part can be folded and unfolded from these hinges. In addition, the spare tire cover 24 and the floor part 2
The base portion of the spare tire cover 24 is also hot stamped, and this portion is used as a hinge 31 to allow the spare tire cover portion 24 to be opened and closed with respect to the floor portion 20.

Further, foil stamping is also applied to appropriate positions on both side portions 23, and these portions are used as hinges 32, 3.
2..., the side portion 23 can be folded into an appropriate shape. Note that both side portions 23 mentioned above
．． The hinge portion 32 formed at 23 is formed to correspond to the portion bulged out by the foil house of the trunk room 2, and by bending this portion with the hinge 32, the foil house in the trunk room is expanded. It forms a curved surface that fits the bulged end.

Next, each member constituting the luggage compartment trim formed by being individually divided in this way is attached integrally via the overlapping pieces 21a, 22a, and 23a, as shown in FIGS. 4 and 5. . In this case, the attachment means include, for example, adhesive fixing, tacker fixing (mechanical fixing with Stella pull), caulking fixing, and hook-and-loop fasteners. Among these, the method with the highest bonding strength and cheapest method is available. You can choose the joining method from among them.

Therefore, in the completed product state, the front part 22, rear part 21 and side parts 23, 23 are in a state where they can be folded and unfolded with respect to the floor part 20, as shown in FIG.

Therefore, when folded from this unfolded shape, it can be transported in a flat stacked state, and in order to assemble this product into the trunk 2 of the vehicle 1 on the automobile assembly line from this state, the floor portion 20 Lay it on the spherical surface of the luggage compartment, and from that state attach each member to the hinge 3.
0, a three-dimensional shape as shown in FIG. 6 is automatically formed inside the luggage compartment 2, thereby completing the product.

In this case, the front part of the side part 23 is connected to each hinge 32.3 in order to avoid the above-mentioned foil house.
2... is bent inward to form a shape that conforms to the curved surface of the wheel house.

As described above in detail with reference to the embodiments, in the method for manufacturing a luggage compartment trim according to the present invention, the laminate boards 10 are formed separately according to the shape of the floor surface and the four circumferential walls of the luggage compartment, respectively, as described above. In addition to joining these parts together, we applied surface stamping processing, and the processed parts were used as hinges to allow for folding and unfolding.As a result, each member was made separately, and each part was assembled separately at the assembly site. This has the advantage that the assembly can be completed with a single touch at the assembly site, compared to systems where the trunk trim is assembled and completed at the assembly site.

In addition, the trunk room trim completed as described above can be folded and transported via the hinge portion, so it has the advantage of being easier to transport compared to the conventional one formed into a curved shape. has.

Since the above-mentioned trunk room trim has a large area in the unfolded state, it is not possible to punch each part into the unfolded shape using the above-mentioned laminate plate 10, but it can be formed separately as described above. It can be easily integrated into the unfolded shape using conventional equipment, and even if some changes are forced, such as a design change on the main body of the car, only a portion of each member that makes up the trunk can be integrated. All you have to do is change it, so
It has various advantages such as being able to be manufactured in response to specification changes in large pot production.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing a trunk room of an automobile and a conventional prefabricated trunk trim; Fig. 2 is a partially enlarged sectional view of a laminate board applied to the present invention;
Figure 4 is an exploded view showing the manufacturing order of the present invention, Figure 5 is a sectional view taken along line 5--5 in Figure 4, and Figure 6 is a completed perspective view showing the state of assembly of the trunk room. . 1... Car 2... Trunk room 10... Laminate board 11... Skin material 12... Core material 20... Floor part 21...Rear part 22...Front part 23...Side part

Claims (1)

[Claims] (1) A core material is laminated on the back side of the skin material, and this laminated board is punched by press processing according to the shape of the floor surface and four peripheral walls of the trunk room of a car, and at the same time, these members are bonded together at the joint edges. A thin hinge is formed by stamping along the folded part,
Next, these punched members are pasted together along their joint edges to integrally form the unfolded shape of the trunk room.
A method for manufacturing a luggage compartment trim, characterized in that each member is folded and unfolded mutually via the hinge.