JP2013078855A - Compound structure equipped with resin structure and metal plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a composite structure comprising a resin structure and metal plates that improve the rigidity without changing the plate thickness of the metal plates.SOLUTION: There is provided a composite structure made by sticking first and second metal plates together holding the resin structure by using an adhesive. In the resin structure 2, a plurality of tubular erect bodies 8 are formed by means of wall parts 7 rising from a base part surface of the resin structure 2, a wall end part 9 melted at the wall part 7 and the first metal plate 3 are welded through the adhesive 5, a base part rear surface 10 melted in the resin structure 2 and the second metal plate 4 are welded through the adhesive 5, a sealed space 6 is formed by the erect bodies 8 held by the first and second metal plates 3 and 4, and the air pressure of the sealed space 6 is pressurized in the state exceeding 1 atm.

Description

  The present invention relates to a composite structure including a resin structure and a metal plate used for building members such as wall materials, floor materials, and roof materials.

  Conventionally, as a board mainly made of polypropylene resin, a synthetic resin cap sheet having a plurality of protruding caps, a synthetic resin back sheet bonded to the bottom side of the cap with an adhesive, and the top side of the cap There is known a technique in which a plastic resin board is formed by laminating a synthetic resin liner sheet that is bonded to a plastic sheet (see, for example, Patent Document 1). If the outer surface side is made of plastic as described above, the hardness of the plastic is not high, and there is a problem that whitening may occur if the surface is scratched.

  Further, as a technique capable of eliminating the above-mentioned whitening defect, it is conceivable to use a metal plate on the outer surface side. For example, a calcium carbonate foam plate is attached to both the front and back surfaces of an inorganic plate-shaped core formed into a concavo-convex surface shape via an epoxy adhesive, and a steel plate (face plate) is attached to the outside via an epoxy adhesive. The technique of the panel board for construction of the form to stick is also known (for example, refer to patent documents 2).

JP 2009-125987 A Japanese Patent Laid-Open No. 07-18778

  In the conventional case, since the plate-like core is simply bonded via an adhesive, even if the plate-shaped core is pressed by a pressure roll or the like for a short time at the time of bonding, Since the hollow part space of the part is released from the pressurization, it is at atmospheric pressure of 1 atm. When a bending force is applied to the panel plate as described above, for example, a compressive force is applied to the face plate on one side, and a tensile force is applied to the face plate on the opposite side. Furthermore, it is necessary to set the plate thickness in consideration of buckling or local buckling of the face plate on the compression edge side.

  Therefore, the present invention provides a composite structure composed of a resin structure and a metal plate that has improved rigidity without changing the thickness of the metal plate in the composite structure composed of a resin structure and a metal plate. For the purpose.

  In order to advantageously solve the above-described problem, in the composite structure including the resin structure and the metal plate according to the first invention, the resin structure is sandwiched between the first and second metal plates using an adhesive. The resin structure has a plurality of cylindrical uprights formed by wall portions rising from the base surface of the resin structure, and the front end portion of the wall portion to be melted in the wall portion And the first metal plate are welded via an adhesive, the base back surface to be melted in the resin structure and the second metal plate are welded via an adhesive, and each of the standing bodies is the first and second A sealed space is formed by being sandwiched between metal plates, and the air pressure in the sealed space is pressurized to a pressure exceeding 1 atm.

  The composite structure comprising the resin structure and the metal plate of the second invention is a composite structure in which the metal plate and the resin structure are bonded using an adhesive, and the resin structure is formed from the base surface thereof. A plurality of cylindrical standing bodies formed by rising wall portions, and a plurality of bulges from the base surface having a top plate portion formed from a wall tip end portion in the wall portions. There are protrusions, the back of the base part to be melted of the resin structure and the metal plate are welded via an adhesive, and each protrusion is closed by the metal plate to form a sealed space by the hollow portion of the protrusion The air pressure in the sealed space is pressurized so as to exceed 1 atm.

In the third invention, in the composite structure comprising the resin structure of the first invention or the second invention and the metal plate, the non-welding surface side of the metal plate to which the resin structure is welded is the air pressure in the sealed space. An outward bulge is formed by the expansion force, and the bulge is formed for each sealed space of the standing body.
In the fourth invention, in the composite structure composed of the resin structure of the first to third inventions and the metal plate, the tip of the wall part to be melted in the wall part is heated and pressurized and crushed. The widened wall portion is formed and welded in a state where the area of the welded portion is increased.

  In the fifth invention, in the composite structure including the resin structure according to any one of the first to fourth inventions and the metal plate, the widening wall portion is gradually increased in thickness toward the welded portion. It is formed so that a dimension may become large.

  According to the first invention, the composite structure is formed by sandwiching the resin structure between the first and second metal plates using an adhesive, and the resin structure rises from the base surface of the resin structure. A plurality of cylindrical uprights are formed by the wall, and the melted base in the resin structure is formed by welding the melted tip of the wall and the first metal plate via an adhesive. The back surface and the second metal plate are welded via an adhesive, and each of the standing bodies is sandwiched between the first and second metal plates to form a sealed space. The air pressure in the sealed space is 1 Since the pressure exceeds the atmospheric pressure, when the bending force is applied to the composite structure, the initial tensile force by the air pressure is applied to the face plate on the compression edge side. Since the deformation does not occur until the tensile force is canceled, Without changing the thickness of the plate, with a simple structure, effects such as it is possible to increase the rigidity of the composite structure is obtained. In addition, by welding a resin structure having a plurality of standing bodies to each metal plate, an effect of forming a sealed space in which the air pressure is pressurized to more than 1 atm can be obtained. . Moreover, the effect that it can be set as the heat insulation panel with high bending rigidity provided with the sealed space filled with air is acquired.

  According to the second invention, a composite structure in which a metal plate and a resin structure are bonded together using an adhesive, and the resin structure is a cylindrical upright formed by a wall portion rising from the base surface. A plurality of bodies, a top plate portion formed from a tip portion of the wall portion of the wall portion, and a plurality of protrusions bulging in a hollow shape from the surface of the base portion to melt the resin structure The back of the base and the metal plate are welded via an adhesive, and each of the projections is closed by the metal plate to form a sealed space by the hollow portion of the projection, and the air pressure of the sealed space exceeds 1 atm. Since the pressure is pressed to the state, the hollow part of the projection can be made a sealed space by welding the back side of the base of the resin structure to the metal plate, and the air pressure of the sealed space exceeds 1 atm. A composite structure that is welded under pressure Effects such can be obtained.

  In the third invention, in the composite structure comprising the resin structure of the first invention or the second invention and the metal plate, the non-welding surface side of the metal plate to which the resin structure is welded is the air pressure in the sealed space. An outward bulge is formed by the expansion force of the bulge, and since the bulge is formed for each sealed space of the standing body, the portion formed by the bulge formed for each sealed space of the standing body Since the metal plate is in a state in which a tensile force is constantly applied, the presence of the bulge compared to the case without the bulge increases the distance from the neutral axis in the thickness direction of the composite structure. In addition, since the air pressure in the sealed space exceeds 1 atm, the initial tensile force can be applied to the entire bulge portion by the internal pressure, and the rigidity of the bulge portion can be increased correspondingly. Local buckling of the part Effects such can be prevented can be obtained.

  According to the fourth aspect of the present invention, the melted wall tip portion of the wall portion is welded in a state where the area of the welded portion is increased by being heated and pressurized and crushed to form the widened wall portion. Therefore, the welding of the resin structure to the metal plate can be made strong, and the area of the welded portion in the resin structure is increased, so that the bonding portion on the resin structure side can be firmly joined. The effect that it can do is acquired.

  According to the fifth invention, the widened wall portion is formed so that the wall thickness dimension of the wall portion gradually increases toward the welded portion, thereby transmitting stress from the resin structure to the metal plate, Alternatively, effects such as smooth transmission of stress from the metal plate to the resin structure can be obtained. In addition, in the welded portion between the metal plate and the resin structure, the distance between the walls of the vertical body is reduced, so the span of the metal plate between the walls is also reduced, and the rigidity of the metal plate at that portion can be improved. Etc. are obtained.

(A) is the longitudinal front view which shows the composite structure which consists of the resin structure and metal plate of 1st Embodiment of this invention, (b) is a longitudinal front view which expands and shows the A section of (a). . It is a perspective view of the composite structure which consists of the resin structure of this invention shown in FIG. 1, and a metal plate. (A) is a longitudinal front view showing a state immediately before a resin structure is welded and bonded to a heated metal plate to manufacture the composite structure of the first embodiment of the present invention, and (b) is (a) It is a vertical front view which expands and shows the B section of (). (A) is the longitudinal front view which shows the composite structure which consists of the resin structure and metal plate of 2nd Embodiment of this invention, (b) is a longitudinal front view which expands and shows the C section of (a). . (A) And (b) is the schematic which shows one form of the manufacturing process of the composite structure which consists of the resin structure of this invention, and a metal plate. (A) is a longitudinal front view showing a state immediately before the resin structure is welded and bonded to a heated metal plate in order to manufacture the composite structure of the second embodiment of the present invention, and (b) is (a) It is a vertical front view which expands and shows the D section of (). (A) is a longitudinal front view showing a state immediately before the resin structure is welded and bonded to a heated metal plate in order to manufacture the composite structure of the third embodiment of the present invention, and (b) is (a) It is a longitudinal front view which expands and shows the E section of (). (A) is the longitudinal front view which shows the composite structure which consists of the resin structure and metal plate of 3rd Embodiment of this invention, (b) is a longitudinal front view which expands and shows the F section of (a). . (A) is a longitudinal front view showing a state immediately before a resin structure is welded and bonded to a heated metal plate in order to manufacture the composite structure of the fourth embodiment of the present invention, and (b) is (a) It is a vertical front view which expands and shows the G section of (). (A) is the longitudinal front view which shows the composite structure which consists of the resin structure and metal plate of 4th Embodiment of this invention, (b) is a longitudinal front view which expands and shows the H section of (a). . (A) is a partially longitudinal perspective view showing an embodiment of a resin structure used in the present invention, (b) is a longitudinal front view of (a), and (c) is a plan view. (A) is a partially longitudinal perspective view showing another form of the resin structure used in the present invention, (b) is a longitudinal front view of (a), and (c) is a plan view. (A) is a partially longitudinal perspective view showing still another embodiment of the resin structure used in the present invention, (b) is a longitudinal front view of (a), and (c) is a plan view. It is explanatory drawing for demonstrating an effect | action when the metal plate is bulged by the air pressure of the sealed space in a standing body increasing. (A) shows the state immediately before manufacturing still another resin structure used in the present invention, and when the top plate portion is located at the tip of the wall portion of the standing body in the resin structure, the bottom surface of the base portion of the resin structure is FIG. 3 is a longitudinal front view showing a state immediately before welding and bonding to a thick metal plate, and FIG. 4B is a longitudinal front view showing an enlarged portion I of FIG. FIG. 16 is a longitudinal front view showing a state in which the resin structure is pressed and welded to a heated metal plate from the state of FIG. 15, and (b) is a longitudinal front view showing an enlarged J portion of (a). (B) A longitudinal front view showing a state immediately before a base plate back surface of a resin structure is welded to a sheet-like metal plate and pasted when a top plate portion is provided at a wall tip of the resin structure. FIG. 2 is a longitudinal front view showing an enlarged portion K of (a). FIG. 17 is a longitudinal front view showing a state in which the resin structure is pressed and welded to a heated sheet-like metal plate from the state of FIG. 17, and (b) is a longitudinal front view showing an enlarged L part of (a). It is.

    Next, the present invention will be described in detail based on the illustrated embodiment.

  1 to 3 show a composite structure 1 including a resin structure and a metal plate according to the first embodiment of the present invention, and FIG. 1A includes a resin structure and a metal plate. Fig. 3 is a longitudinal front view of the composite structure 1, Fig. 2 (b) is an enlarged front view showing the portion A of Fig. 3 (a), Fig. 2 is a perspective view of the composite structure 1 including a resin structure and a metal plate. (A) is a longitudinal front view showing a state immediately before the resin structure of the first embodiment of the invention is welded and bonded to a metal plate, and (b) is a longitudinal front view showing an enlarged portion B of (a). It is.

  The composite structure 1 of the present invention is plate-shaped, and in the composite structure 1 of the first embodiment, the resin structure 2 is disposed at the center in the thickness direction of the plate, and the resin structure 2 Both the front and back surfaces of this are portions of the adhesive 5 forming the adhesive layer provided on the heated first metal plate 3 and the second metal plate 4, and the first metal plate 3 and the second metal plate 3. It is welded to the metal plate 4.

  In the present invention, due to the structure of the resin structure 2, the resin structure 2 and the metal plate are jointly bonded to each other by welding the resin structure 2 to at least one metal plate via the adhesive 5. What is necessary is just the form which forms the sealed space 6 pressurized to the state exceeding 1 atmospheric pressure. In 1st Embodiment, the wall part front-end | tip part 9 of the cylindrical standing body 8 by the wall part 7 which stands up from the base part surface 15 (refer FIG. 3) of the resin structure 2, and the base back surface of the resin structure 2 10 is sandwiched and welded between the first metal plate 3 and the second metal plate 4 so that the inside of the cylindrical upright body 8 serves as a sealed space 6. When the air pressure in the sealed space 6 is normally assumed to be used under atmospheric pressure, the internal pressure due to the air pressure in the sealed space 6 is increased by making the air pressure higher than the atmospheric pressure of 1 atm. Thereby, the initial tensile stress is previously introduced into the standing body 8, the first metal plate 3, and the second metal plate 4 formed of the wall portion 7 surrounding the sealed space 6. As a result, when an out-of-plane bending force is applied, the rigidity is increased by preventing the deformation until the initial tensile stress is canceled, resulting in increased buckling or local buckling. It does not occur. The internal pressure due to the air pressure in the sealed space 6 is set to be higher than the air pressure at the place of use. The air pressure in the sealed space 6 is set to, for example, 1 atm (101325 Pa = 760 mmHg (Torr)) <the air pressure in the sealed space 6 ≦ 1.1 atm to 2.0 atm. The air pressure in the sealed space 6 can be adjusted by adjusting the height change accompanying the melting of the resin structure 2 at the time of applying pressure and pressurization.

  In the present invention, the reason why the resin structure 2 is welded to the metal plates 3 and 4 is, for example, a portion to be bonded by pressure welding in the resin structure 2 by the heat of the heated metal plates 3 and 4. In order to melt, the height dimension in the axial direction of the standing structure 8 in the resin structure 2 or the resin structure 2 (height dimension of the wall portion 7) is slightly smaller than the state before heating and pressing, It is desirable that the resin structure 2 or the wall portion 7 of the resin structure 2 has a height dimension in the axial direction of the standing body 8 that is increased in advance because the height dimension of the resin structure 2 or the wall portion 7 is reduced. By doing in this way, the air pressure of the sealed space 6 is increased, and the welding is completed in that state, so that the standing body 8 and the first metal plate 3 and the second metal plate 4 surrounding the sealed space 6 are preliminarily provided. It is also for introducing an initial tensile stress. In addition, the air pressure in the sealed space 6 can be easily increased by welding the metal plates 3 and 4 and the resin structure 2, and the composite structure 1 including these can be manufactured at low cost. is there. When a bending force in the out-of-plane direction acts on the bulge 11 (see FIG. 4), the composite structure 1 can be made to have increased rigidity so as not to be locally buckled or buckled. Further, when the air pressure in the sealed space increases from 1 atm, the resonance frequency of the metal plate bonded to the back surface or the front and back surfaces of the resin structure 2 is increased. Therefore, the sound insulation performance of the composite structure as a whole is improved by the rigidity law.

  The form which manufactures the composite structure 2 may be manufactured continuously or intermittently. For example, when manufacturing continuously, both surfaces of the resin structure 2 are bonded via an adhesive. In the case of manufacturing the composite structure 1 welded to the metal plate, the composite structure is manufactured by the manufacturing form as shown in FIG. 5A, and one side of the resin structure 2 is welded to the metal plate through an adhesive. When the body 1 is manufactured, it may be manufactured in the form shown in FIG. In the case of intermittent production, although not shown, one or both surfaces of the short resin structure 2 having a predetermined length are welded to a short metal plate having a predetermined length via an adhesive. Thus, the composite structure 1 may be manufactured.

Briefly describing FIG. 5, each of the standing bodies 8 in the resin structure 2 in contact with the first metal plate 3 in a state of being pressed by the heat of the first metal plate 3 heated by the heating furnace 23. The wall tip 9 is melted and welded to the first metal plate 3 through an adhesive, and the second metal plate 4 is heated by the heat of the second metal plate 4 heated by the heating furnace 23. In the case of forming the composite structure 1 in a form in which the base back surface 10 in the resin structure 2 that is in contact in a pressed state is melted and welded to the second metal plate 4 via an adhesive, FIG. As shown. In the case of FIG. 5 (a), the adhesive 5 is applied to one surface of the strip-shaped first metal plate 3 fed out from the first coil 20 by an adhesive application means 21 such as an adhesive application roller or an adhesive spraying device. Thus, the first metal plate 3 with an adhesive is provided along the belt-like resin structure 2 fed out from the reel 22 around which the resin structure is wound, and further fed out from the second coil 25. The adhesive 5 is applied to one side of the strip-shaped second metal plate 4 by the adhesive application means 21 to form a strip-shaped second metal plate 4 with an adhesive, and this is wound with a resin structure. Each metal plate is heated to a temperature close to the melting point of the belt-shaped resin structure 2 by a heating furnace 23 or the like along the belt-shaped resin structure 2 fed out from the reel 22.
In the case described above, when a sufficient amount of heat is required for welding on the base back surface 10 side rather than welding on the vertical body 8 side, the first metal plate 3 on the vertical body 8 side of the belt-shaped resin structure 2 is contacted. The metal roll 17 on the side to be touched is lower by about 0 ° C. to −5 ° C. than the melting point of the resin structure 2 and is in contact with the second metal plate 4 on the base rear surface 10 side of the belt-shaped resin structure 2 17 may be higher by + 5 ° C. to + 15 ° C. than the melting point of the resin structure 2.
In the case of FIG. 5B, the adhesive 5 is applied to one surface of the strip-shaped first metal plate 3 fed out from the first coil 20 by an adhesive application means 21 such as an adhesive application roller or an adhesive spraying device. Thus, the first metal plate 3 with an adhesive is formed, and the first metal plate 3 is moved along the belt-shaped resin structure 2 drawn out from the reel 22 around which the composite structure is wound, and the belt-shaped resin is heated by a heating furnace 23 or the like. The metal plate is heated to a temperature close to the melting point of the structure 2. Further, by pressing the metal plate with the upper and lower metal rolls 17 that are rotationally driven by a driving device (not shown), the bonding surface side of the belt-shaped resin structure 2 in contact with the metal plate is melted. The belt-shaped resin structure 2 is welded to the belt-shaped first metal plate 3 by pressing with a metal roll 17.
In the above case, the metal roll 17 on the side in contact with the belt-shaped resin structure 2 does not particularly require heating or the like, but the metal roll 17 in contact with the metal plate as a heating means for the other metal plate 3, By setting the temperature to + 5 ° C. to + 15 ° C. above the melting point of the resin structure 2, the surface to be welded in the belt-shaped resin structure 2 in contact with the heated metal plate is melted and welded in a pressure-contacted state. Thus, a continuous strip-shaped composite structure 1 may be manufactured. After the metal plate 3 is welded to the resin structure 2 via the adhesive 5 by the above means, the metal plate 3 is cut to a predetermined length by a cutting device such as a traveling cutting machine and cooled by means such as air cooling or water cooling. Thus, the composite structure 1 having a predetermined length is manufactured.
In addition, when welding the base back surface side of the continuous strip-shaped resin structure 2 to the strip-shaped metal plate, the metal plate is provided from the lower side of the strip-shaped resin structure with the guide rolls 24 appropriately. The metal plate may be heated by the heating furnace 23 and pressed by the metal roll 17 toward the resin structure 2 so that the base back side of the resin structure 2 is melted and welded.

When the adhesive application surface side of the resin structure 2 is melted by pressing to the heated metal plate and brought into contact with the metal plate and welded by pressurization, the adhesive surface side of the resin structure is melted. May adopt any of the following forms (1) to (3).
(1) A mode in which the adhesive roll side of the resin structure 2 is melted by the heated metal plate by heating the metal roll contacting the first metal plate 3 or the second metal plate 4.
(2) The heating furnace 23 is a hot-air heating furnace in which hot air is blown to heat the metal plate, and the resin structure is passed through the heating furnace together with the metal plate, thereby heating the metal plate and pressure-bonding to the heated metal plate. Thus, the adhesive application surface side is melted, and the metal roll may be used as a pressure roll.
(3) The heating furnace 23 is a heating furnace that heats a metal plate by high-frequency induction heating. The resin structure is passed along with the metal plate in a high-frequency induction heating device, thereby heating the metal plate and crimping to the heated metal plate. Thus, the adhesive application surface side is melted, and the metal roll may be used as a heating and pressure roll.

  Instead of the continuous first metal plate 3 and second metal plate 4 and resin structure 2, the first metal plate 3, second metal plate 4 and resin structure 2 are replaced with a short rectangle or A bonded end of the resin structure 2 is melted by press-bonding a rectangular shape or the like in a predetermined final product size form to a heated metal plate (first metal plate 3 and second metal plate 4). Then, the metal plate and the metal plate may be pressed from the outside and pasted together.

  The heating temperature of the metal plate such as the first metal plate 3 is such that the material of the resin structure 2 is not homogeneous throughout, so that melting occurs locally at a temperature below the assumed melting point, The melting point (° C.) of the resin structure 2 is set in a range of approximately ± 10 ° C. For example, when the resin forming the resin structure 2 is an olefin resin and the melting point is 170 ° C., the temperature is set in the range of 160 ° C. to 180 ° C., for example, in the range of around 170 ° C. The temperature (° C.) of the metal roll 17 is set slightly higher than the temperature 170 ° C., for example, depending on the manufacturing method.

  In the above case, the pressing time by the metal roll 17 and the thickness of the adhesive 5 after the resin structure 2 is brought into contact with the heated metal plate 3 (4) are set by design. Depending on the thickness of the metal plate 3 (4) and the adhesive, the thickness of the adhesive 5 is, for example, in the range of 3 to 20 μm, and the pressurizing time is about 0.05 seconds to 1 second. Set to After welding, the composite structure 1 is cooled by blowing with a blower or a mist cooler as appropriate.

  Here, the member used in this invention is demonstrated.

  As the metal plates 3 and 4, a steel plate, an aluminum alloy plate, a stainless steel plate, a zinc alloy plate, a copper plate, or another metal plate may be used, or a metal plate having a surface plated may be used. Also good. As the metal plates 3 and 4, continuous or short plate-like or sheet-like metal plates may be used. The plate thickness dimension of the metal plates 3 and 4 is appropriately set by design depending on the place of use such as a flooring material or a roofing material in a building part.

  In the present invention, there are cases where the metal plates 3 and 4 are not expanded due to the air pressure in the sealed space 6 in the standing body 8 and due to the thickness of the metal plate, and may be expanded in a circular arc shape or the like. . For example, in the case of a predetermined thick plate so as not to bulge and deform, a tensile force is applied to the metal plates 3 and 4 of the sealed space 6 by the air pressure in the sealed space 6. Further, in the case of a sheet-like thin metal plate, a bulge 11 (see FIG. 4) that bulges into a cross-section arc shape by air pressure is formed, and a portion that bulges into a cross-section arc shape by air pressure, It is assumed that a tensile force is acting. Since the thin metal plates 3 and 4 form the bulge 11 as described above, when a bending force is applied, the bulge 11 portion has a distance from the neutral axis X (see FIG. 14). Since r ′) increases in proportion to the cube of the distance compared to the distance (r) without the bulge 11, the rigidity is advantageously increased, and the expansion force due to the air pressure in the sealed space 6 is advantageous. Furthermore, since the initial tensile force is applied to the bulge 11 portion, even if a compressive force due to a bending force is applied, deformation does not occur until the initial tensile force is canceled out by the compressive force. It works advantageously.

  It is desirable that the metal plates 3 and 4 are appropriately grounded before applying the adhesive. An adhesive that is activated by heat may be used. As the adhesive that is activated by heat, for example, an epoxy adhesive, a polyester adhesive, a urethane adhesive, or the like may be used.

  Next, various forms of the resin structure 2 used in the composite structure 1 of the present invention will be described with reference to the drawings. When implementing this invention, as the said resin structure 2, a continuous form or a short form may be sufficient, for example, olefin resin, such as a polypropylene resin and a polyethylene resin, and another synthetic resin are used. As for the thickness dimension of the resin structure 2, the plate thickness and the like are appropriately set by design depending on the place where the flooring or roofing material in the building part is used.

  For example, as shown in FIGS. 11A, 11 </ b> B, 12 </ b> C to 12 </ b> A, 12 </ b> B, and 12 </ b> C, the resin structure 2 includes a plate-like base portion 12, from the surface of the base portion 12. The wall part 7 which stands up is provided integrally. When the wall portion 7 has a cylindrical shape, a plurality of cylindrical standing bodies 8 are formed by the wall portion 7 at intervals in the front-rear direction and the left-right direction, or FIG. (B) As shown in (c), a plurality are formed so as to be continuous in the front-rear direction and the left-right direction.

  More specifically, with reference to each drawing, in the form shown in FIGS. 11A, 11B, and 11C, a peripheral side wall having a circular cross section is formed so as to rise from the surface of the plate-like base 12 in a cylindrical shape. The cylindrical standing body 8 by the integrally formed wall part 7 is formed in a staggered arrangement at intervals in the front-rear direction (member longitudinal direction) and the left-right direction (member width direction) of the plate-like base part 12, Further, a through-hole is formed in the flat plate portion of the base portion 12 concentrically with the upright body 8 so as to form a cylindrical upright body 8 that penetrates the base portion. In the above-described embodiment, the vertical body 8 is arranged with an equiangular interval (in the illustrated embodiment, an equal angular interval of 60 °) around the single standing body 8 as a center. ing. The thickness of the wall 7 is made smaller than that of the base 12, and the wall thickness is gradually reduced toward the wall tip 9.

  In the resin structure 2 shown in FIGS. 12 (a), (b), and (c), the portion different from the form shown in FIGS. 11 (a), (b), and (c) is the tip of the wall portion 7. The top plate portion 13 connected to the portion 9 is provided, the tip of the wall portion of the wall portion 7 is closed by the top plate portion 13, and the standing body 8 including the top plate portion 13 is formed as a cap-shaped protrusion 14 as a whole. Is different. 12 (a), 12 (b) and 12 (c), the wall portion 7 has a top plate portion 13 formed integrally with the wall tip end portion 9, and the entire circumference of the peripheral side wall of the standing body 8 is provided. By forming the top plate portion 13 from the wall tip portion 9, a plurality of cap-shaped protrusions 14 bulging from the base surface in a hollow shape are formed. The dimension of the top plate part 13 is made smaller than the thickness of the wall part 7.

  In the resin structure 2 shown in FIGS. 13A, 13 </ b> B, and 13 </ b> C, the wall portion 7 includes the wall portion 7 that is continuous in the front-rear direction so as to rise from the base portion 12, and the left-right direction in the member width direction. The wall portions 7 are formed so as to be spaced apart and intersect at right angles, so that the continuous standing bodies 8 having a common peripheral wall with the adjacent standing bodies 8 are used. It is set as the resin structure 2 of the form which formed.

  As described above, when the standing body 8 in the resin structure 2 is a cylindrical standing body 8 that penetrates both the front and back surfaces of the resin structure 2, the front and back surfaces of the resin structure 2 are By welding to the metal plates 3 and 4 respectively, the standing space 8 and the metal plates 3 and 4 on the front and back sides can form a sealed space 6 that is pressurized jointly.

  In the form shown in FIG. 1 to FIG. 3, the wall tip end 9 side and the base back face 10 side (particularly the part to be pressurized) of the upright body 8 of the resin structure 2 in the form shown in FIG. 5 is applied so as to be sandwiched between the first metal plate 3 or the second metal plate 4 heated by the heating furnace 23, and the drive device from the outside of the first metal plate 3 and the second metal plate 4. (Not shown) is sandwiched between metal rolls 17 that are rotated and driven (or heated and pressurized), and the heat of the metal plates 3 and 4 causes the upright body 8 of the resin structure 2 to be The wall tip 9 side and the base back 10 side are melted and welded via an adhesive 5. Although illustration is omitted, in addition to simultaneously welding both sides of the wall portion distal end 9 side or the base rear surface 10 side of the standing body 8 of the resin structure 2 to the metal plate, the standing body 8 of the resin structure 2 You may weld so that it may pressurize for every one side of the wall part front-end | tip part 9 side or the base back surface 10 side for every 1st metal plate 3 or the 2nd metal plate 4 which the adhesive agent 5 was apply | coated and heated. When the resin structure 2 is welded one side at a time, the metal roll 17 that is in direct contact with the resin structure 2 is heated because the metal plate is not disposed and the surface of the resin structure 2 that is not welded need not be melted. do not have to.

  The wall front end 9 and the base back 10 (particularly the base back side of the wall 7) side of the resin structure 2 are heated and melted by the heat of the heated metal plates 3 and 4 and added. By being pressed by a pressure roll (metal roll 17) or the like, the melted portion is crushed, the widened wall portion 7a is formed, and the area of the welded portion is increased and welded. Yes. Therefore, the welding between the resin structure 2 and the metal plates 3 and 4 can be made strong. In addition, since melting by heat conduction from the heated metal plates 3 and 4 to the resin structure 2 is gradually progressed, the widened wall portion 7a is gradually wall portion toward the welded portion. The wall thickness dimension is increased so that the welding is reliable and strong.

  On the base back surface 10 side, the wall standing back surface portion 18 of the base back surface 10 is welded to the metal plate 4 via the adhesive 5. The wall standing rear surface portion 18 is the base rear surface 10 side, and is a portion on the base rear surface 10 side on the proximal end side of the standing body 8, and the base rear surface 10 side of the resin structure 2 is a second metal plate. 4 is melted using the heat of 4 and welded by pressurization, the portion extending the vertical body 8 to the back side of the base is particularly melted by pressure and heat, so that the base end side of the vertical body 8 An enlarged wall portion 7a wall whose width dimension gradually increases toward the metal plate side is formed in a portion closer to the back side of the base portion, and the area to be welded by pressurization increases. Therefore, the base back surface 10 side of the resin structure 2 having the upright body 8 can be reliably welded, and the bonding strength can be improved as compared with the case where the bonding strength is not melted.

  Moreover, the said widening wall part 7a is formed so that the wall thickness dimension of a wall part may become thick gradually toward the welded part, The stress from the resin structure 2 to each metal plate 3 and 4 is carried out. Or transmission of stress from the metal plates 3 and 4 to the resin structure 2 can be smoothly transmitted. In addition, in the welded portion between the metal plates 3 and 4 and the resin structure 2, the distance between the walls of the standing body is reduced, so the span of the metal plate portion between the walls is also reduced, and the rigidity of the metal plate at that portion is reduced. It is possible to obtain an effect that the deformation can be reduced when the bending force is applied.

  When manufacturing the composite structure 1 of the resin structure 2 and the metal plates 3 and 4 such as steel plates as described above, as shown in FIG. 3, as shown in FIG. 4 is a metal plate in which the resin structure 2 is arranged and heated by a pressure roll (not shown) to sandwich the resin structure 2 and the resin structure 2 is heated. 3 and 4, the wall tip portion 9 and the base rear surface 10 side in the resin structure 2 are partially melted, so that the adhesive and the resin structure 2 are welded, and the molten adhesive is removed from the metal plate 3. The difference in shrinkage between the resin structure 2 and the metal plate 3 (4) (the thermal expansion coefficient of the resin structure 2 is larger than that of the metal plate) by being welded to 4 and cooled by a blower, a mist cooler or the like In addition, the welding is surely performed in a state where the pressure in the sealed space 6 is increased.

The applied pressure is appropriately set according to the air pressure in the sealed space 6 that is planned by design. For example, the pressurization pressure by the metal roll for pressurization may be linear pressurization of about 35 to 50 kg per 1 m length. In addition to the linear pressurization method by line contact with a metal roll, planar pressurization for pressurizing the entire surface of the metal plate may be used. However, when the composite structure 1 is manufactured, the linear pressurization by the roll is used. Is more advantageous. For example, the air pressure in the sealed space 6 before welding is P (kg / mm ² ), the load per length l over the plurality of standing bodies 8 is W (kg / mm), and the sealed space 6 after welding. When the air pressure inside is P ′ (kg / mm ² ) and the total pressurization load per length l over the plurality of standing bodies 8 is W ′ (kg / mm), the increase in load is W '-W = (P'-P) l, and the increase in internal pressure in the sealed space 6 is (W'-W) / l.
It becomes.

  Since the resin structure 2 is not homogeneous throughout the heating temperature (° C.), the heating temperature is approximately within the range of the melting point of the resin (° C.) ± 10 ° C. This is performed by adjusting the contact time between the metal roll and the metal plates 3 and 4.

  The resin structure 2, various metal plates 3, 4, and various known adhesives are appropriately selected according to the design, and the composite structure 1 that exhibits desired performance is manufactured.

  As described above, the resin structure 2 may be welded to the metal plates 3 and 4 on both the front and back surfaces, but as shown in FIG. 15, the resin structure 2 is integrally provided continuously from the front end of the wall. In the form in which the protrusions 14 having the top plate part 13 and forming the groove part having a convex or concave cross section are provided at intervals in the front-rear direction and the left-right direction, the base back surface 10 is attached to the metal plate 4. It can also be set as the composite structure 1 with the single-sided metal plate which consists of the resin structure 2 and the metal plate 4 of 1 sheet | seat by welding. In such a composite structure 1 with a single-sided metal plate, the wall tip 9 on the top plate 13 side of the protrusion 14 of the resin structure 2 is pressed against the heated metal plate 3 coated with an adhesive and melted. The composite structure 1 shown in FIGS. 7 to 8 can be obtained by welding. As shown in FIGS. 9-10, when the plate | board thickness dimension of the metal plates 3 and 4 is small, the top plate part 13 may become a form bulged with a metal plate in cross-sectional arc shape. Thus, when the top plate portion 13 has a form that bulges in an arc shape in cross section, the surface of the composite structure 1 bulges out in a staggered manner and the like, and the design effect can be enhanced.

  The composite structure 1 shown in FIGS. 7 to 8 is the same in the embodiments described later, but the resin structure 2 that is in contact with the metal plates 3 and 4 via an adhesive is heated and pressurized to be melted. Since it can be surely welded by being welded at the part, the resin structure 2 at the part not melted or the resin structure 2 at the part not pressurized by the pressure roll or the top plate part 13 The portion of the outer surface such as the outer surface where the adhesive is in contact (or the outer surface of the top plate portion 13 may not be coated with the adhesive) may not be welded.

  4 and 6 show a composite structure 1 including a resin structure and a metal plate according to a second embodiment of the present invention. In this embodiment, as the metal plates 3 and 4, for example, metal plates 3 and 4 such as steel plates or stainless plates having a plate thickness of 0.01 mm to 2 mm are used. The body 2 is welded.

  When the plate thickness dimension of the first metal plate 3 and the second metal plate 4 is reduced as in the second embodiment, the first metal plate 3 and the second metal are caused by the air pressure expansion force of the sealed space 6. A bulge 11 is formed for each sealed space 6 of the upright body 8 so as to protrude outwardly from the inner side of the welded portion of the resin structure 2 of the plate 4. The bulge 11 on the first metal plate 3 side to which the wall tip end 9 side is welded is restrained by welding the periphery thereof rather than the bulge 11 on the second metal plate 4 to which the base back side is welded. Since the degree is small, the bulge 11 is large. As described above, even when the first metal plate 3 and the second metal plate 4 are partially bulged 11, the first metal plate 3 and the second metal plate 3 are welded by welding the resin structure 2. It welds in the state which ensured the freedom degree of the deformation | transformation by the fusion | melting of the junction part of the resin structure 2 at the time of welding with the metal plate 4. FIG. As described above, if the bulge 11 is formed on the inner side of the welded portion between the first metal plate 3 and the second metal plate 4 by the expansion force due to the air pressure of the sealed space 6 portion, the initial tension is generated by the air pressure. When force is applied, when bending force is applied and compressive force is applied, deformation does not occur until the initial tensile force disappears, so buckling can be suppressed and rigidity can be increased as a result. At the same time, the plurality of bulges 11 produce an aesthetic appearance and improve the design.

  Since the bulge 11 is formed for each sealed space 6 of the standing body, it is in a state in which a tensile force is constantly applied to the metal plate of the portion, and as shown in FIG. Compared to the case without the bulge 11, as shown in FIG. 14B, the presence of the bulge 11 increases the distance from the neutral axis X in the plate thickness direction of the composite structure 1, thereby increasing the in-plane direction. Since the moment of inertia of the cross section around the X axis is increased, the rigidity can be improved. In addition, since the composite structure 1 is often used in a state where it is usually placed under atmospheric pressure or in a pressurized atmosphere, the air pressure in the sealed space 6 exceeds 1 atm. The initial tensile force can be applied to the entire portion of the bulge 11, and accordingly, the rigidity of the bulge portion can be increased, and local buckling or the like of the bulge portion can be prevented from occurring.

This will be further described with reference to FIGS. Consider the case where it is assumed that the resin structure 2 is welded to the metal plates 3 and 4 so that the positions of the first metal plate 3 and the second metal plate 4 do not change. As shown in FIG. 14 (a), the distance from the X axis in the in-plane direction to the center of gravity G of the metal plates 3 and 4 (hatched portions) corresponding to the sealed space 6 is represented by r, When the plate thickness dimension of 4 is t, the length of the spherically bulging portion is l, the increase in height in the out-of-plane direction is Δh, and the bulging 11 is partially deformed to form a spherical shape. The distance to the center of gravity G is r ′, the sectional secondary moment around the X-axis in the form shown in FIG. 21A is I, and the sectional secondary moment of the bulge 11 part deformed into a partially spherical shape is I ′. For example, if l = 10 (mm), t = 1 (mm), r = 5 (mm), Δh = 1 (mm), then r ′ = 5.672 (mm), and I ′ = 323.4 (mm ⁴ ), I = 250.8 (mm ⁴ ). That is, the increase (I′−I) of the sectional moment of inertia is I′−I = 72.6 (mm ⁴ ), and the rigidity can be improved.

  9 and 10 show a composite structure 1 of a resin structure and a metal plate according to a third embodiment of the present invention. In this embodiment, the resin structure 2 in which the top plate portion 13 is integrally formed at the tip of each standing body 8 is used, and the front and back surfaces of such a resin structure 2 are partially heated metal plates. By being melted by using this heat, it is welded to the heated first metal plate 3 and second metal plate 4 made of a thin metal plate such as a steel plate. In addition, you may make it fuse | melt using the heat | fever by the heated metal plates 3 and 4 in the state which heated the front and back both surfaces side of the resin structure 2 beforehand, and raised temperature.

  Similarly to the form shown in FIGS. 15 and 16, as shown in FIGS. 17 and 18, in the case of the resin structure 2 having the form having the top plate portion 13, the base rear surface of the resin structure 2 is melted. By welding to the thin metal plate 3 through an adhesive, the top plate portion 13 of the protrusion 14 made of the standing body 8 is outwardly exposed in the form in which the convex metal 11 is provided on the outer side of the metal plate 3 on the back surface side. It can also be set as the composite structure 1 of the form which formed the convex 11 in the convex. The protrusion 14 side is heated and melted from the composite structure 1 in the form shown in FIGS. 15 and 16 by using the heat of the metal plate in the second metal plate 4, and the adhesive 5 on the metal plate 4 side is obtained. The composite structure 1 having the form shown in FIGS. 4 and 6 can be obtained by heat-welding through the structure.

  In the resin structure 2 having a form as shown in FIG. 13, the adjacent standing bodies 8 are continuous with each other in the front-rear direction and the left-right direction. When such a resin structure 2 is welded to a metal plate, a sealed space can be formed continuously with a small interval in the front-rear direction and the left-right direction.

  When carrying out the present invention, the metal roll 17 may be lined with rubber or the like on the roll surface. Moreover, the metal roll 17 does not need to be provided with a drive device, as long as it is a rotatable roll.

DESCRIPTION OF SYMBOLS 1 Composite structure which consists of resin structure and metal plate 2 Resin structure 3 First metal plate 4 Second metal plate 5 Adhesive 6 Sealed space 7 Wall portion 7a Widening wall portion 8 Standing body 9 Front end of wall portion Part 10 Base back surface 11 Swelling 12 Base 13 Top plate part 14 Protrusion 15 Base surface 17 Metal roll 18 Wall upright back surface part 20 First coil 21 Adhesive application means 22 Reel 23 Heating furnace 24 Guide roll 25 Second coil

Claims (5)

A composite structure in which a resin structure is sandwiched between first and second metal plates using an adhesive,
In the resin structure, a plurality of cylindrical standing bodies are formed by walls rising from the base surface of the resin structure,
The wall tip and the first metal plate to be melted in the wall are welded via an adhesive,
The base back surface and the second metal plate to be melted in the resin structure are welded via an adhesive,
Each of the standing bodies is sandwiched between first and second metal plates to form a sealed space, and the air pressure in the sealed space is pressurized to a pressure exceeding 1 atm. A composite structure composed of a resin structure and a metal plate. A composite structure in which a metal plate and a resin structure are bonded together using an adhesive,
The resin structure includes a plurality of cylindrical standing bodies formed by wall portions rising from the surface of the base portion, and has a top plate portion formed from a wall tip portion of the wall portion, and the base portion. It has a plurality of protrusions that bulge from the surface into a hollow shape,
The base back surface and the metal plate to be melted of the resin structure are welded via an adhesive,
A resin structure characterized in that each of the protrusions is closed by the metal plate to form a sealed space by a hollow portion of the protrusion, and the air pressure of the sealed space is pressurized to more than 1 atm. A composite structure consisting of a body and a metal plate. On the non-weld surface side of the metal plate to which the resin structure is welded, an outward bulge is formed by an air pressure expansion force in the sealed space, and the bulge is formed for each sealed space of the standing body. A composite structure comprising the resin structure according to claim 1 or 2 and a metal plate.   The tip of the wall portion to be melted in the wall portion is welded in a state where the area of the portion to be welded is increased by being heated and pressurized and crushed to form a widened wall portion. A composite structure comprising the resin structure according to any one of claims 1 to 3 and a metal plate.   The resin structure according to any one of claims 1 to 4, wherein the widened wall portion is formed so that a wall thickness dimension of the wall portion gradually increases toward a welded portion. A composite structure consisting of a body and a metal plate.

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