JP2014037150A - Laminate sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminate sheet capable not only of enhancing strengths but also of inhibiting, regardless of sizes thereof, the generation of post-molding warps.SOLUTION: The provided vehicular deck board 1 is formed by fusing, in a state where a foam resin 13 and a reinforce 20 interpose between a front surface sheet 12a and a rear surface sheet 12b, the respective edges of the front surface sheet 12a and rear surface sheet 12b and by blow-molding the resulting assembly by dispensing compressed air into the interior thereof. The respective edges of the front surface sheet 12a and rear surface sheet 12b, furthermore, are mutually fused in such a way that a hollow portion will be formed over the entire perimeters of the peripheral boundaries of both.

Description

  The present invention relates to a laminated board.

  Conventionally, as a laminated plate, a thermoplastic parison is extruded from an extrusion head, and the parison is suspended between one mold and the other mold, and an outer skin is formed between the parison and one mold. It is known that a vehicle interior panel is formed by placing a sheet, clamping a mold, introducing a pressure fluid into a parison, and performing blow molding (see, for example, Patent Document 1).

JP 2006-182208 A

  However, the conventional technology has a problem that the interior panel for a vehicle is hollow and the strength as the interior panel for a vehicle is weak. Therefore, it is necessary to insert a bridging member inside the vehicle interior panel to increase the strength of the vehicle interior panel. However, in the above conventional technique, since the bridging member cannot be inserted in the interior of the vehicle interior panel in advance, a part thereof is notched after molding the vehicle interior panel, and the notched portion is again inserted after the bridging member is inserted. It was necessary to perform the closing work, and it took time and effort.

  Further, in the above prior art, since the vehicle interior panel is formed simply by clamping the mold and performing blow molding, the vehicle interior panel can be shaped along the inner surface shape of the mold. Therefore, there is a risk that the panel base material surface of the vehicle interior panel is distorted.

  Furthermore, in the above prior art, since the upper part of the parison is stretched due to the weight of the parison as the parison hangs down, the thickness differs between the upper part and the lower part of the panel base material when the interior panel for a vehicle is formed. There is a problem that the strength varies depending on the part, or distortion occurs due to cooling after molding or temperature change during use of the panel. In particular, since the thinner the upper part of the parison becomes more noticeable as the molded panel becomes larger, it can be said that the method of hanging the parison and blow-molding the hollow panel is not very suitable for molding a large panel.

  Therefore, an object of the present invention is to obtain a laminated board that can increase strength and suppress the occurrence of distortion after molding regardless of the size.

  In the laminated board of the present invention, a raised cross-linking material and a reinforcing member are interposed between two thermoplastic resin plate parts, and ends of the two plate parts are welded to each other. The two plate portions are blow-molded by injecting them with compressed air, and the end portions are welded so that a hollow portion is formed over the entire periphery of the peripheral portion.

  In addition, an elevated cross-linking material is interposed between the two thermoplastic resin plate portions, the ends of the two plate portions are welded together, and compressed air is injected into the interior. The two plate portions are blow-molded so that the end portion of one plate portion is curved toward the end portion of the other plate portion, and the end portion of the other plate portion is the end portion of one plate portion. The end portions are welded so that the outer surfaces are flush with each other.

  According to the present invention, the strength of the laminated plate can be increased, and the occurrence of distortion after molding can be suppressed regardless of the size.

The side view which shows the deck board for vehicles concerning one Example of this invention. 1 is a cross-sectional view of a vehicle deck board according to an embodiment of the present invention. Sectional drawing which shows the state which vacuum-sucked the back side sheet | seat raw material concerning one Example of this invention to the lower mold | type. Sectional drawing which shows the state which clamps the pair of metal mold | die concerning one Example of this invention, and blow-molds the front-and-back side sheet | seat raw material. The top view which shows the state which has arrange | positioned foamed resin and reinforcement on the back surface side sheet | seat raw material concerning one Example of this invention. The top view which shows the state which has arrange | positioned the lattice-shaped structure molded object and the reinforcement on the back surface side sheet | seat raw material concerning the 1st modification of this invention. The perspective view of the lattice-shaped structure molded object concerning the 1st modification of this invention. Sectional drawing of the vehicle deck board concerning the 1st modification of this invention. The top view which shows the state which has arrange | positioned the honeycomb structure molded object and the reinforcement on the back surface side sheet | seat raw material concerning the 2nd modification of this invention. The perspective view of the honeycomb structure molded object concerning the 2nd modification of this invention. Sectional drawing of the vehicle deck board concerning the 2nd modification of this invention. The top view which shows the state which has arrange | positioned the embossed shape molded object and the reinforcement on the back surface side sheet | seat raw material concerning the 3rd modification of this invention. The perspective view of the embossed shape molded object concerning the 3rd modification of this invention. Sectional drawing of the vehicle deck board concerning the 3rd modification of this invention. Sectional drawing of the vehicle deck board concerning the 4th modification of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Here, a vehicle deck board is illustrated as a laminated board.

  FIG. 1 is a side view showing a vehicle deck board according to the present embodiment, FIG. 2 is a cross-sectional view of the vehicle deck board, and FIG. 3 is a cross-sectional view showing a state where the back side sheet material is vacuum-sucked into the lower mold. Fig. 4 is a cross-sectional view showing a state where a pair of molds are clamped to blow-mold the front and back side sheet material, and Fig. 5 is a state where foamed resin and reinforcement are arranged on the back side sheet material. FIG.

  A vehicle deck board (laminate board) 1 according to this embodiment is disposed on a floor 4 of a luggage room 3 of an automobile 2 and covers the floor 4 of the luggage room 3. The vehicular deck board 1 is pivoted upwardly around a pivot shaft (not shown) provided at the front end in the vehicle front-rear direction so that the cargo compartment below the floor 4 is placed. It is possible to take in and out the luggage in 8. The luggage room 3 is partitioned by a rear seat 9 as a front wall of the luggage room 3, a back door 10 as a rear wall, and a roof panel 11 as an upper wall.

  The vehicle deck board 1 includes a thermoplastic resin top sheet (plate part) 12a, a thermoplastic resin back sheet (plate part) 12b, and the front sheet 12a and back sheet 12b. A polypropylene plate-like foamed resin (raised and cross-linked material: thermoplastic resin foam molded product) 13 supporting the front side sheet 12a and the back side sheet 12b, and the front side sheet 12a and the back side sheet 12b. And a reinforcement 20 (reinforcing member: metal profile extrusion molding) 20 made of aluminum, which increases the rigidity of the vehicle deck board 1.

  In the present embodiment, as the front surface side sheet 12a and the back surface side sheet 12b, filler reinforced polypropylene in which a filler (at least one of a filler and a long glass fiber) is blended with polypropylene is used, and the respective plate thicknesses are the same. It has become. Furthermore, in this embodiment, the thing with the same compounding ratio of the filler is used as the surface side sheet | seat 12a and the back surface side sheet | seat 12b. Various fillers such as silica, calcium carbonate, wood powder, carbon fiber, and long glass fiber can be used.

  Then, the end portions 6 and 7 of the front surface side sheet 12a and the back surface side sheet 12b are welded together with the foamed resin 13 and the reinforcement 20 interposed therebetween, so that a hollow molded body containing a raised cross-linking material (raised cross-linking material) A hollow hollow laminated plate) 12 is formed.

  At this time, as for the surface side sheet | seat 12a and the back surface side sheet | seat 12b, edge part 6, 7 is welded so that a hollow part may be formed over the perimeter of a peripheral part. Further, in the front side sheet 12a and the back side sheet 12b, the end 6 of the front side sheet 12a is curved toward the end 7 of the back side sheet 12b, and the end 7 of the back side sheet 12b is the front side sheet 12a. The end portions 6 and 7 are welded so that the outer surfaces are flush with each other.

  Further, the surface (outer surface) side of the surface side sheet 12 a is covered with a nonwoven fabric (coating material) 14. That is, the covering portion 25 covered with the nonwoven fabric (covering material) 14 is formed on the surface of the front surface side sheet 12a. In addition, a coating | coated part may be provided in the back surface (outer surface) side of the back surface side sheet | seat 12b, and may be provided in each of the front and back surface side sheets 12a and 12b. Moreover, it is not necessary to provide a coating | coated part. And various things, such as an olefin resin, a plastic cardboard, and a hard board, can be used as a covering material.

  Furthermore, in this embodiment, when welding the edge parts 6 and 7 of the surface side sheet | seat 12a and the back surface side sheet | seat 12b, while forming the step part 12c, the edge part 14a of the nonwoven fabric 14 is welded to the said step part 12c. Thus, the end 14a is prevented from being turned over by an operator, an occupant, or the like touching the end 14a.

  In addition, the vehicle deck board 1 has reinforcements 20 arranged along the vehicle width direction at both ends and the center in the vehicle longitudinal direction, and a foamed resin 13 is arranged between the reinforcements 20 and 20. Yes. That is, as shown in FIG. 2, the foamed resin 13 and the reinforcement 20 are alternately arranged in the vehicle front-rear direction.

  Next, a method for forming the vehicle deck board 1 will be described.

(First step)
First, the front side sheet material (the other thermoplastic resin plate) 15 and the back side sheet material (one thermoplastic resin plate) 16 made of a thermoplastic resin, which are uniformly molded to a predetermined thickness, are heated and softened. Let

(Second step)
Next, the back side sheet material (one thermoplastic resin plate) 16 is disposed above the lower mold (lower mold) 21. The lower mold 21 has a number of vacuum suction holes 18 for vacuum forming the back side sheet material (one thermoplastic resin plate) 16. Then, the back side sheet material 16 is vacuum-shaped into the shape of the inner surface 21a of the lower mold 21 while the lower mold 21 is vacuum-sucked. In addition, you may make it interpose the one side coating | covering materials, such as a nonwoven fabric, between the lower mold | type 21 and the back surface side sheet | seat raw material (one thermoplastic resin board) 16. FIG.

(Third step)
Next, the foamed resin (lifting cross-linking material) 13 and the reinforcement (reinforcing member) 20 are disposed at a predetermined position above the back-side sheet material 16 that is vacuum-formed into the shape of the inner surface 21 a of the lower mold 21.

  In the present embodiment, as shown in FIG. 5, the foamed resin 13 has a shape in which both ends in the vehicle width direction protrude in the front-rear direction, that is, a substantially I shape in plan view, and the reinforcement 20 is In the plan view, it has a long rectangular shape in the vehicle width direction. In the present embodiment, two foamed resins 13 are arranged in the front and rear, and the reinforcements 20 are arranged at both ends and an intermediate portion of the two foamed resins 13 and 13. At this time, the foamed resin 13 is disposed so as to cover at least a part of both ends of the reinforcement 20 in the vehicle width direction. Furthermore, in this embodiment, the foamed resin 13 and the reinforcement 20 are arranged so that a gap is formed between the foamed resin 13 and the reinforcement 20. Thus, even if a gap is formed between the foamed resin 13 and the reinforcement 20, the backside sheet material 16 and the surface side sheet material 15 are thermally contracted during molding, so that the foamed resin 13 and the reinforcement 20 are separated. It is possible to suppress the occurrence of abnormal noise due to contact and movement of the reinforcement 20 or fluttering.

  In addition, you may use what formed the foamed resin so that the outline shape may follow the outline shape of the deck board 1 for vehicles as a raising bridge material. When such a foamed resin is used, if it is necessary to reinforce the vehicle deck board 1 with the reinforcement 20, a portion where the foamed resin reinforcement 20 is disposed is cut out, or a groove or a through hole is formed in the portion. It is preferable to provide.

  Moreover, various shapes can be adopted as the foamed resin. For example, the foamed resin may be disposed only on a part of the vehicle deck board 1 (for example, the front half) and the other part (for example, the rear half) may be provided with a hollow portion.

(Fourth process)
Next, the surface side sheet material (the other thermoplastic resin plate) 15 is disposed above the foamed resin 13 and the reinforcement 20 disposed above the back surface side sheet material 16 (the upper surface of the foamed resin 13 and the reinforcement 20). That is, the foamed resin 13 and the reinforcement 20 are interposed between the back side sheet material 16 and the front side sheet material 15. At this time, the upper mold (the other mold) 22 is disposed above the surface side sheet material 15. The upper mold 22 is also provided with a number of vacuum suction holes 18 for vacuum-forming the surface side sheet material (other thermoplastic resin material) 15. The upper mold 22 may be disposed above the front side sheet material 15 after the foamed resin 13 is interposed between the back side sheet material 16 and the front side sheet material 15.

  And the nonwoven fabric material (other side covering material) 17 is arrange | positioned so that it may interpose between the surface side sheet material 15 and the upper mold | type 22. As shown in FIG.

(Fifth step)
Next, the upper die 22 and the lower die 21 are clamped while being vacuum sucked, so that the nonwoven fabric material 17 and the surface side sheet material 15 disposed above the foamed resin 13 and the reinforcement 20 are vacuum sucked into the upper die 22. However, the shape of the inner surface 22a of the upper mold 22 is vacuum-shaped. At the same time, the front-side sheet material 15 and the back-side sheet material 16 disposed between the upper mold 22 and the lower mold 21 and the front-side sheet material 15 and the back-side sheet material 16 are disposed so as to be interposed therebetween. The welded peripheral edge of the foamed resin 13 and the reinforcement 20 is welded by the cutting blade 22b provided on the upper mold 22 while the peripheral edges of the front side sheet material 15 and the back side sheet material 16 are welded to each other. The laminated member 26 with a raised cross-linking material is formed. Further, in the present embodiment, the peripheral edge of the nonwoven fabric material 17 is also welded to the welded portions of the back-side sheet material 16 and the front-side sheet material 15 by the cutting blade 22b provided in the upper mold 22 at the same time. The outer periphery is also cut off.

  At this time, the nonwoven fabric material 17 is bonded to the surface of the surface side sheet material 15 by a so-called anchor effect.

(Sixth step)
Then, the upper and lower molds (a pair of molds) 22 and 21 that have been clamped are vacuum-sucked, that is, the back-side sheet material 16 and the front-side sheet material 15 are vacuum-sucked by the lower mold 21 and the upper mold 22, respectively. The air blow pin 23 is inserted into the raised cross-linking material-containing laminated member 26 welded by clamping the upper die 22 and the lower die 21, and compressed air is injected into the raised cross-linking material-containing laminated member 26. By blow molding, a hollow molded body with a raised cross-linking material (hollow laminate with a raised cross-linking material) 12 is formed.

(Seventh step)
Finally, the formed hollow molded body 12 with the raised cross-linking material is precooled between the upper mold 22 and the lower mold 21 and taken out from the upper and lower molds 22 and 21. Furthermore, if forced cooling is performed in a state where the taken-out hollow molded body 12 containing the raised cross-linking material is fixed with a correction jig or the like, it is possible to stop the thermal contraction and suppress the occurrence of distortion.

  Thus, the vehicle deck board 1 is formed.

  The back side sheet material 16 may be vacuum-sucked by the upper mold 22, and the front-side sheet material 15 may be vacuum-sucked by the lower mold 21.

  According to the above embodiment, the lower mold 21 and the upper mold 22 are vacuum-sucked in a state where the back-side sheet material 16 and the front-side sheet material 15 formed in a uniform thickness are arranged in the horizontal direction. The vehicle deck is formed by injecting compressed air into the laminated member 26 including the raised cross-linking material formed by welding the peripheral edge of the back-side sheet material 16 and the peripheral edge of the front-side sheet material 15, thereby forming the vehicle deck. The shape of the board 1 can be more accurately matched to the shapes of the inner surfaces 21a and 22a of the lower die 21 and the upper die 22. In addition, since the back side sheet material 16 and the front side sheet material 15 are previously formed to have a uniform thickness and are arranged in the horizontal direction, the vehicle deck board 1 is formed. It is possible to prevent the thickness of the seat from being biased by the front and back portions, causing distortion due to the uneven thickness of the seat, or the front and back surfaces of the vehicle deck board 1 being localized. It can suppress that it dents. Thus, when the shape of the inner surface of the mold can be reproduced better, both the front and back surfaces of the vehicle deck board 1 can be formed into a flat shape, and the reversible vehicle deck board 1 can be obtained. Is possible. Further, according to the present embodiment, the back side sheet material 16 and the front side sheet material 15 are provided by interposing the foamed resin (lifting cross-linking material) 13 between the back side sheet material 16 and the front side sheet material 15. Can be supported by the foamed resin (raised cross-linking material) 13 to increase the rigidity of the vehicle deck board 1 and the vehicle deck board 1 is locally recessed when the vehicle deck board 1 is molded. Can be further suppressed. Furthermore, since the thickness of the back-side sheet material 16 and the front-side sheet material 15 can be reduced compared with the case where the foamed resin (raised cross-linking material) 13 is not interposed, the foamed resin (raised cross-linking material) 13 is interposed. Even if the weight of the vehicle deck board 1 is increased, the weight of the vehicle deck board 1 is increased by reducing the thickness of the back side sheet material 16 and the front side sheet material 15 and reducing the weight. Can be suppressed. At this time, if the configuration of the foamed resin (lifting cross-linking material) 13 is appropriately designed, the vehicle deck board can be made lighter than before.

Furthermore, according to this embodiment, since the reinforcement (reinforcing member) 20 is interposed between the foamed resin (raised cross-linking material) 13 and the back-side sheet material 16 and the front-side sheet material 15, the vehicle deck board is used. 1 can be further enhanced in rigidity.

  In addition, according to the present embodiment, the surface of the vehicle deck board 1 can be covered with the nonwoven fabric material 17 by interposing the nonwoven fabric material 17 between the upper mold 22 and the surface side sheet material 15. The design of the deck board 1 can be improved.

  Further, according to the present embodiment, the vehicle deck board 1 uses the foamed resin (raised and cross-linked material) 13 having a high rigidity to connect the front side sheet 12 a and the back side sheet 12 b to the foamed resin (raised and cross-linked material) 13. Therefore, the rigidity of the vehicle deck board 1 can be increased, and the vehicle deck board 1 can be prevented from being locally recessed.

  Further, according to the present embodiment, the vehicle deck board 1 has a structure in which the reinforcement (reinforcing member) 20 is interposed between the front surface side sheet 12a and the back surface side sheet 12b. 1 can be further enhanced in rigidity.

  Furthermore, according to the present embodiment, the foamed resin 13 has a substantially I-shaped foamed resin (raised cross-linking material) 13 in plan view so that the protrusions of the foamed resin 13 cover at least a part of both ends in the longitudinal direction of the reinforcement 20. Since it arrange | positions, it can suppress that the reinforcement 20 moves inside the deck board 1 for vehicles, or flutters and noise is generated. In addition, since both ends of the reinforcement 20 in the longitudinal direction are not completely surrounded by the foamed resin 13, when the compressed air is injected into the laminated member 26 with the raised cross-linking material and blow-molded, the periphery of the reinforcement 20 In addition, the compressed air can be distributed, and the occurrence of partial molding defects in the vehicle deck board 1 can be suppressed.

  In addition, according to the present embodiment, the vehicle deck board 1 has a structure in which a covering portion in which the surface of the surface side sheet 12a is covered with the nonwoven fabric 14 is formed. Can be improved.

  Next, a modification of the above embodiment will be described.

  (First Modification) FIG. 6 is a plan view showing a state in which a lattice-shaped structure molded body and reinforcement are arranged on the back side sheet material according to the first modification of the present embodiment, and FIG. 7 is a lattice-shaped structure molding. FIG. 8 is a cross-sectional view of a vehicle deck board. In addition, this modification is provided with the component similar to the said 1st Embodiment. Therefore, the same constituent elements are denoted by common reference numerals, and redundant description is omitted.

  In the vehicle deck board 1 </ b> A according to this modification, a grid-like structure molded body 27 having a vertical wall portion 27 a as shown in FIG. 7 is used as a raised cross-linking material instead of the foamed resin 13 of the above embodiment. The lattice-shaped structure molded body 27 has a substantially I shape in plan view, and the vertical wall portions 27a of the lattice-shaped structure molded body 27 have vent holes so as to communicate with the rooms partitioned in a lattice shape. 27b is formed.

  And in this embodiment, the lattice-shaped structure molded object 27 is formed using the filler reinforcement | strengthening polypropylene which mix | blended the filler with the polypropylene resin (synthetic resin raw material). In addition, it is also possible to form a lattice-shaped structure molded body using other synthetic resin materials, synthetic resin foam materials, metal materials, or paper materials.

  The lattice-shaped structure molded body 27 is formed by press punching or injection molding.

  And like the said 1st Embodiment, the lattice-shaped structure molded object 27 and the reinforcement 20 are arrange | positioned alternately as shown in FIG. 6, and it interposes between the surface side sheet material 15 and the back surface side sheet material 16. In the state where the non-woven fabric material (other side covering material) 17 is arranged above the front surface side sheet material 15, the front surface side sheet material 15, the non-woven fabric material 17 and the back surface side sheet material 16 are connected to the upper mold 22 and the lower side. The mold 21 is clamped while being vacuum-sucked, and the raised cross-linking material as shown in FIG. 8 is formed by injecting compressed air into the laminated member 26 containing the raised cross-linking material formed by mold clamping and blow-molding. A hollow molded body (a hollow laminated plate with a raised cross-linking material) 12A is formed.

  Also according to the above modification, the same effects as those of the first embodiment can be obtained.

  In addition, according to the present modification, the lattice-shaped structure molded body 27 formed of a synthetic resin material is used as a raised cross-linking material, whereby the rigidity of the vehicle deck board 1A can be increased and the vehicle deck board 1A can be improved. Weight reduction can be achieved. Note that substantially the same effect can be obtained even if the lattice-shaped structure molded body is molded using other synthetic resin materials, synthetic resin foam materials, metal materials, paper materials, or the like.

  Further, by forming a ventilation hole in the vertical wall portion 27a of the lattice-shaped structure molded body 27, when compressed air is injected into the laminated member 26 with the raised cross-linking material, the vertical wall portion of the lattice-shaped structure molded body 27 is formed. It is possible to suppress the occurrence of partial molding defects in the vehicle deck board 1 </ b> A due to the compressed air spreading throughout the rooms surrounded by 27 a.

  Moreover, according to this modification, the lattice-like structure molded body 27 having the vertical wall portion 27a and the vent hole 27b formed in the vertical wall portion 27a can be easily obtained by press-molding or injection molding the synthetic resin material. Can be molded.

  (Second Modification) FIG. 9 is a plan view showing a state in which the honeycomb structure formed body and the reinforcement are arranged on the back side sheet material according to the second modification of the present embodiment, and FIG. 10 is a view of the honeycomb structure formed body. FIG. 11 is a cross-sectional view of a vehicle deck board. In addition, this modification is provided with the component similar to the said 1st Embodiment. Therefore, the same constituent elements are denoted by common reference numerals, and redundant description is omitted.

  In the vehicle deck board 1B according to the present modification, a hexagonal honeycomb structure formed body 28 having a vertical wall portion 28a as shown in FIG. 10 is used as a raised cross-linking material instead of the foamed resin 13 of the above embodiment. Yes. The honeycomb structure formed body 28 has a substantially I shape in a plan view, and the vertical wall portions 28a of the honeycomb structure formed body 28 are provided with air holes 28b so as to communicate with the respective hexagonal compartments. Is formed. The honeycomb structure is not limited to a hexagonal shape, and an octagonal shape can also be used.

  And in this embodiment, the honeycomb structure molded object 28 is formed using the filler reinforcement | strengthening polypropylene which mix | blended the filler with the polypropylene resin (synthetic resin raw material) like the said 1st modification. It is also possible to form a honeycomb structure formed body using other synthetic resin materials, synthetic resin foam materials, metal materials, or paper materials.

  The honeycomb structure formed body 28 is formed by press punching or injection molding.

  As in the first embodiment, the honeycomb structure formed bodies 28 and the reinforcements 20 are alternately arranged as shown in FIG. 9 and are interposed between the front surface side sheet material 15 and the rear surface side sheet material 16. In addition, in a state where the nonwoven fabric material (other side coating material) 17 is disposed above the front surface side sheet material 15, the upper surface 22 and the lower mold are formed by combining the front surface side sheet material 15, the nonwoven fabric material 17, and the back surface side sheet material 16. The mold 21 is clamped while being vacuum-sucked respectively, and blown molding is performed by injecting compressed air into the laminated member 26 including the raised cross-linking material formed by clamping, so that the elevated cross-linking material as shown in FIG. 11 is contained. A hollow molded body (a hollow laminated plate with a raised cross-linking material) 12B is formed.

  Also according to the above modification, the same effects as those of the first embodiment and the first modification can be obtained.

  (Third Modification) FIG. 12 is a plan view showing a state in which the embossed shaped article and the reinforcement are arranged on the back side sheet material according to the third modified example of the present embodiment, and FIG. 13 shows the embossed shaped article. FIG. 14 is a cross-sectional view of a vehicle deck board. In addition, this modification is provided with the component similar to the said 1st Embodiment. Therefore, the same constituent elements are denoted by common reference numerals, and redundant description is omitted.

  In the vehicle deck board 1 </ b> C according to this modification, instead of the foamed resin 13 of the above embodiment, an embossed shaped body 29 having a vertical wall portion 29 a as shown in FIG. 13, that is, a cross-sectional unevenness having a columnar embossing. The shaped embossed shaped body 29 is used as a raised cross-linking material. The embossed shaped body 29 has a substantially I shape in plan view.

  And in this embodiment, the embossed shape molded object 29 is formed using the filler reinforcement | strengthening polypropylene which mix | blended the filler with the polypropylene resin (synthetic resin raw material) like the said 1st modification. In addition, it is also possible to form an embossed shaped body using other synthetic resin materials, synthetic resin foam materials, or metal materials.

  And like the said 1st Embodiment, the embossed shape molded object 29 and the reinforcement 20 are arrange | positioned alternately as shown in FIG. 12, and it interposes between the surface side sheet material 15 and the back surface side sheet material 16. In addition, in a state where the nonwoven fabric material (other side coating material) 17 is disposed above the front surface side sheet material 15, the upper surface 22 and the lower mold are formed by combining the front surface side sheet material 15, the nonwoven fabric material 17, and the back surface side sheet material 16. The mold 21 is clamped while being vacuum-sucked respectively, and blown molding is performed by injecting compressed air into the laminated member 26 with the raised cross-linking material formed by clamping, so that the elevated cross-linking material as shown in FIG. 14 is contained. A hollow molded body (a hollow laminated plate with a raised cross-linking material) 12C is formed.

  Also according to the above modification, the same effects as those of the first embodiment can be obtained.

  Moreover, according to this modification, the deck board for vehicles is used by using the embossed shaped molded body 29 molded from a synthetic resin material that has been conventionally used as an insulating thermal insulation panel or an automobile interior part as a raised cross-linking material. The rigidity of 1C can be increased, and the thickness of the vehicle deck board 1C can be made thinner than before, so that the weight of the vehicle deck board 1C can be reduced. Note that substantially the same effect can be obtained even if the embossed shaped molded body is molded using other synthetic resin material, synthetic resin foam material or metal material.

  Moreover, if the embossed shaped body 29 is used as in this modification, the compressed air is raised and cross-linked without providing a vent hole for distributing the compressed air as in the first and second modifications. The inside of the laminated member 26 with material can be distributed.

  (Fourth Modification) FIG. 15 is a sectional view of a vehicle deck board according to a fourth modification of the present embodiment. In addition, this modification is provided with the component similar to the said 1st Embodiment. Therefore, the same constituent elements are denoted by common reference numerals, and redundant description is omitted.

  In the vehicle deck board 1D according to this modification, instead of the foamed resin 13 of the above embodiment, two metal plates 30, 30 are provided above and below a polypropylene plate-shaped foamed resin (synthetic resin foamed sheet) 13D. A laminated molded body (a molded body in which a synthetic resin sheet or a synthetic resin foam sheet is laminated between two upper and lower metal plates) is used as a raised cross-linking material. In addition, it is also possible to use another synthetic resin foam sheet or a synthetic resin sheet instead of the polypropylene foam resin.

  Further, in the present modification, the reinforcement 20 is not used.

  And while interposing the molded object which laminated | stacked the two metal plates 30 and 30 on the upper and lower sides of foamed resin 13D between the surface side sheet material 15 and the back surface side sheet material 16, similarly to the said 1st Embodiment. In the state where the nonwoven fabric material (other side covering material) 17 is disposed above the front surface side sheet material 15, the front surface sheet material 15, the nonwoven fabric material 17, and the back surface side sheet material 16 are connected to the upper mold 22 and the lower mold 21. 15 is hollowed with a raised cross-linking material as shown in FIG. 15 by being blown by injecting the compressed air into the laminated member 26 with the raised cross-linking material formed by clamping, and vacuum-molding each of the layers. A formed body (hollow laminate plate with a raised cross-linking material) 12D is formed.

  Also according to the above modification, the same effects as those of the first embodiment can be obtained.

  Moreover, according to this modification, since the molded body in which the two metal plates 30 and 30 are laminated above and below the foamed resin 13D is used, the rigidity of the vehicle deck board 1D is increased without using a reinforcing member. be able to. Even if other synthetic resin foam sheets or synthetic resin sheets are used, substantially the same effect can be obtained.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment, and various modifications can be made.

  For example, in the above embodiment and the first to fourth modifications, a thermoplastic resin foam molded body as a raised cross-linking material, a molded body in which a synthetic resin sheet or a synthetic resin foam sheet is laminated between two upper and lower metal plates, and a vertical wall portion An embossed shaped molded body having a vertical wall portion, a honeycomb structured molded body having a vent hole in the vertical wall portion, and a lattice-shaped structural molded body having a vertical wall portion and a vent hole formed in the vertical wall portion. Although exemplified, the present invention can also be implemented using a chip urethane resin molded body, a chip felt molded body, a cardboard molded body and the like. In addition, when using a corrugated-cardboard molded object, it is suitable to use what has heat resistance.

  Moreover, in the said embodiment and the 1st-4th modification, although the thickness of two board parts is using the same, you may make it vary the thickness of two board parts, respectively. .

  In this way, the strength of the two plate portions can be changed as necessary. For example, when the strength on the front surface side is necessary, but the strength on the back surface side is not required so much, the plate portion used on the back surface side can be changed. It can be made thinner and lighter.

  Moreover, in the said embodiment and the 1st-4th modification, the thing with the same compounding quantity of the filler mix | blended with a polypropylene was used as two board parts, However, As two board parts, a filler Different types of glass long fibers or different amounts of filler and glass long fibers may be used.

  In this way, heat resistance and impact resistance can be improved. Further, the two plate portions can be made thinner, and the weight of the hollow laminated plate can be reduced. Furthermore, by blending at least one of a filler and a long glass fiber with polypropylene resin, it becomes possible to reduce the shrinkage of the polypropylene resin that occurs during the molding of the hollow laminate, and deformation such as distortion of the hollow laminate. Can be suppressed.

  Further, the cross section of the reinforcing member is not limited to an H shape, and may be a perfect circle, an ellipse, a quadrangle, or the like. The reinforcing member can be not only a metal profile extrusion-molded product but also a synthetic resin profile extrusion-molded product or press-molded product.

  Moreover, in the said 1st and 2nd modification, although the ventilation hole is provided in the center part of the vertical wall part, the installation position of a ventilation hole is not limited to this, It can provide in various positions. . For example, a part of the upper end portion of the vertical wall portion may be cut out in a slit shape to form a vent hole.

  Moreover, it is preferable to use a 3 mm to 12 mm thick embossed shaped body of the third modified example.

  In this way, the vehicle deck board can be further reduced in weight.

  Moreover, in the said embodiment and modification, although one plate-shaped vehicle deck board was illustrated, for example, when forming a vehicle deck board using a pair of metal mold | die, it was previously provided in the metal mold | die. A vehicular deck in which a plurality of boards are integrally connected via a hinge part by, for example, forming a hinge part by heat welding by pressing two thermoplastic resin materials with a pressing member. The present invention can also be implemented using a board.

  In the above-described embodiment, the vehicle deck board is exemplified as the laminated plate. However, the present invention can also be implemented using interior materials and exterior materials for other vehicles and buildings.

1 Vehicle deck board (laminate board)
12 Hollow molded body with raised cross-linked material (hollow laminate with raised cross-linked material)
12a Surface side sheet (plate part)
12b Back side sheet (plate part)
13 Foamed resin (lifting cross-linking material)
14 Nonwoven fabric (coating material)
20 Reinforce (Reinforcement member)
25 Covering portion 27 Lattice-like structure molded body (raised cross-linking material)
28 Honeycomb structure formed body (raised cross-linked material)
29 Embossed shaped body (raised cross-linking material)

Claims (6)

A raised cross-linking material and a reinforcing member are interposed between two thermoplastic resin plate portions, and ends of the two plate portions are welded together, and compressed air is injected into the inside. A laminated board blow molded in
The two plate portions are laminated plates in which ends are welded so that a hollow portion is formed over the entire circumference of the peripheral portion. A raised cross-linking material is interposed between two thermoplastic resin plate portions, and the ends of the two plate portions are welded together, and blow molding is performed by injecting compressed air into the inside. Laminated board,
In the two plate portions, an end portion of one plate portion curves toward an end portion of the other plate portion, and an end portion of the other plate portion curves toward an end portion of the one plate portion. The laminated board is characterized in that the ends are welded so that the outer surfaces are flush with each other.   The laminate according to claim 1 or 2, wherein a plurality of raised cross-linking materials are interposed between the two plate portions.   A plurality of reinforcing members are interposed between the two plate portions, and the reinforcing members have a substantially rectangular shape in plan view, and are arranged with a gap with respect to the raised cross-linking material. The laminated board according to claim 3, wherein:   The laminate according to any one of claims 1 to 4, wherein a covering portion covered with a covering material is formed on an outer surface of at least one of the two plate portions. Board.   The laminated board according to claim 5, wherein a step portion is formed at a welded portion of the two plate portions, and an end portion of the covering material is welded to the step portion.

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