JP-2026075950-A - Laminate

Abstract

[Problem] To provide a laminated board that can reduce weight and manufacturing costs by partially eliminating the core material. [Solution] The laminated board 10 comprises a main body portion 11 in which a pair of base materials 12 and 13 are arranged at intervals in the thickness direction, and the ends 12a and 13a of the pair of base materials 12 and 13 are welded together. The main body portion 11 is composed of a first board portion 20 in which a core material 15 is arranged between the pair of base materials 12 and 13, and a second board portion 30 in which a nonwoven fabric 16 is arranged between the pair of base materials 12 and 13. [Selection Diagram] Figure 5A

Inventors

• 湯澤 俊

Assignees

• 盟和産業株式会社

Dates

Publication Date

20260511

Application Date

20241023

Claims (6)

1. The main body comprises a pair of base materials arranged at intervals in the thickness direction, with the ends of the pair of base materials welded together. The main body is, A first board portion is formed by placing a core material between a pair of base materials, A second board portion having a nonwoven fabric disposed between a pair of the base materials, Laminated board.
2. The laminate according to claim 1, wherein the nonwoven fabric is a spunbond nonwoven fabric.
3. The laminate according to claim 1 or 2, wherein the nonwoven fabric is not sandwiched between the base material and the core material.
4. The laminate according to claim 1 or 2, wherein at least a portion of the nonwoven fabric is sandwiched between the base material and the core material.
5. The laminate according to claim 1 or 2, wherein the second board portion has a reinforcing recess formed by recessing at least one of the pair of base materials.
6. The laminate according to claim 1 or 2, wherein the first board portion and the second board portion are connected via a hinge portion.

Description

This invention relates to laminated boards. Conventionally, laminated boards in which a core material is interposed between two synthetic resin substrates are known (see Patent Document 1). Patent No. 5603534 This is a schematic perspective view showing the rear of a vehicle equipped with the laminated plate according to this embodiment.This is a plan view showing an example of a laminate according to this embodiment.This is a cross-sectional view taken along line A-A in Figure 2.This is a cross-sectional view taken along the line B-B in Figure 2.This is a cross-sectional view showing an enlarged view of section C in Figure 4.This is a cross-sectional view showing an enlarged view of section C in Figure 4.This is a plan view showing an example of a laminate according to another embodiment.This is a cross-sectional view taken along line D-D in Figure 6. The laminated board according to this embodiment will be described in detail below with reference to the drawings. Note that the dimensional ratios in the drawings are exaggerated for illustrative purposes and may differ from the actual ratios. In this embodiment, a vehicle deck board is used as an example of a laminated board. [Overall configuration of the vehicle deck board] As shown in Figure 1, the laminated board (vehicle deck board 10) according to this embodiment is placed on the floor 3 of the luggage compartment 2 of the automobile 1 and covers the floor 3 of the luggage compartment 2. The luggage compartment 2 is partitioned by the rear seats 4, which serve as the front wall of the luggage compartment 2, a back door (rear wall) (not shown), and a roof panel (upper wall). The vehicle deck board 10 allows for loading and unloading of luggage in the cargo compartment 5 beneath the floor 3 by rotating the rear portion (the first board portion 20, described later) upward around a hinge portion 40 located in the middle of the vehicle's longitudinal direction. In this embodiment, the vehicle deck board 10 can be rotated by hooking a finger or the like into the notch 10a at the rear of the vehicle's longitudinal direction and lifting it. As shown in Figures 2 to 5A, the vehicle deck board 10 includes a main body portion 11 formed in the shape of a plate. The main body portion 11 is composed of a first base material 12 made of synthetic resin, which is arranged on the surface side (upper side in the figure) of the main body portion 11, and a second base material 13 made of synthetic resin, which is arranged on the back side (lower side in the figure) of the main body portion 11 (see Figure 5A). That is, the main body portion 11 is composed of a pair of base materials 12 and 13 that are spaced apart in the thickness direction (vertical direction) of the vehicle deck board 10, and the ends 12a and 13a of this pair of base materials 12 and 13 are welded together (see Figures 3 and 4). The pair of base materials 12 and 13 are thermoplastic resin sheets made of thermoplastic resins such as polypropylene, engineering plastics, and olefin resins. Specifically, it is preferable to add additives to, for example, polypropylene resin. Preferred additives include inorganic fillers such as mica, silica, talc, calcium carbonate, glass fibers, and carbon fibers, as well as colorants, stabilizers, plasticizers, antistatic agents, flame retardants, and foaming agents. Furthermore, the vehicle deck board 10 has a surface layer 14 that covers at least the front side (first base material 12) of the main body portion 11 (see Figure 5A). Additionally, the vehicle deck board 10 may have a surface layer (not shown) that covers the back side (second base material 13) of the main body portion 11. The main body 11 of the vehicle deck board 10 according to this embodiment has a first board portion 20 and a second board portion 30. These first board portion 20 and second board portion 30 are connected via a hinge portion 40. Between the first board portion 20 and the second board portion 30, the first base material 12 and the second base material 13 are welded together to form a welded portion, which constitutes the hinge portion 40 (see Figure 5A). Note that the welded portion between the first base material 12 and the second base material 13 between the first board portion 20 and the second board portion 30 does not necessarily have to be used as a hinge. Furthermore, the hinge portion 40 does not necessarily have to be interposed between the first board portion 20 and the second board portion 30. In this embodiment, the thickness of the first board portion 20 is greater than the thickness of the second board portion 30. However, this is not limited to this; the thickness of the first board portion 20 may be less than the thickness of the second board portion 30, and the thicknesses of the first board portion 20 and the second board portion 30 may be substantially the same. As shown in Figure 5A, the first board section 20 is constructed by placing a core material 15 between a pair of