JP4583389B2 - COMPOSITE STRUCTURAL STRUCTURE MEMBER AND METHOD FOR PRODUCING THE SAME - Google Patents

Description

  This invention retains the required strength as a structural steel used as a structural member, and finishes the surface of the structural member as a decorative material in the required smooth state, giving it a luxurious, high quality, high quality and heavy feeling. The present invention relates to a composite decorative structural member having an appearance and a method for producing the same.

  In recent years, doors and window frames, elevator doorways, corner edges of walls, etc. for luxury hotels such as modern hotels, luxury apartment buildings, luxury condominiums, underground shopping streets, etc. As a material, metal building materials made of stainless steel (SUS), aluminum alloy, titanium alloy or the like are widely used. These building materials are not structural members (strength members) for buildings, but are not structural members (strength members) for devices such as doors, window frames, elevators, etc., but are doors, window frames, parting materials for walls and walls, etc. When used as an edge material, it is used as a design material that is a reinforcing material and has a beautiful appearance.

  In addition to these building materials, as structural members for supporting the structural strength of the building, members called so-called steel plates such as H-shaped steel, channel steel, and angle materials are often used. Generally, these structural members are made of walls. It is arranged in the surface material and is hardly seen on the exterior in buildings. For this reason, the structural member does not require a special finishing process such as a smooth surface finish or pattern applied to the reinforcing material, and a material that is mass-produced by a process such as rolling, extrusion, or casting is used as a mold steel. Any mechanical properties such as compression, tension, and shear required for the construction site, hardness, ductility, elastic modulus, temperature coefficient, and other dimensional accuracy such as shape, length, and width are compatible. Good.

  Generally, stainless steel molds that are mass-produced as structural steels for structural members use stainless steel molds (for example, SUS304) that have mechanical properties, shapes, and materials within the range defined by JIS standards. It is formed. Since the stainless steel that is mass-produced in this way is generally formed by hot rolling, the surface finish is rough. However, stainless steel is widely used as a structural member because it is resistant to rust and has the same strength as a general structural member.

  On the other hand, if the metal material used as a building material is a thin alloy metal material of about several millimeters, such as a building material using an aluminum sash or a stainless steel sash, use it. It is assumed that the target part will be used as an edge material for windows and doors. And since such a thin alloy metal material, especially stainless steel, is generally manufactured by cold rolling, its surface state is smoother than stainless steel as the structural member, and it has a high surface finish. At a general level that is not required, it can be used as it is without any further surface treatment.

As an example of a building material using such a thin metal material, “composite aluminum building material” of Patent Document 1 is known. This composite aluminum building material is an aluminum building material that can be handled in the same way as a wooden square. This composite aluminum building material is formed by forming a rectangular cross-section exterior material using a thin aluminum plate that can be cut with a wood saw on the outer periphery of a long wooden core material having a rectangular cross-section, and inserting wood into the hollow portion. In addition, it is used as an equivalent to ordinary wood timber.
Japanese Utility Model Publication No. 5-30314

  By the way, as described above, stainless steel molds that are generally mass-produced as structural steels for structural members are formed as hot-rolled steel molds with a predetermined shape, so that the surface finish is rough, and depending on where they are used In some cases, structural members may be used where they are exposed from the outer wall. In this case, both the strength as a structural member and the design with excellent surface finish and patterned appearance with high smoothness of the material surface A material having the following characteristics is required. However, since the surface treatment of the stainless steel is not sufficient, the surface roughness is actually adjusted by a polishing apparatus to adjust the surface roughness to a necessary level.

  In stainless steel as a structural member used in places and facilities that require such surface treatment, a great amount of labor and cost are required to polish the surface of the stainless steel so as to be suitable for the place and facility. However, the use of stainless steel is becoming increasingly difficult due to soaring material costs. Further, any of the structural members having a solid cross section such as H-shaped steel, channel-shaped steel, and angle members is provided with a bent portion (R) at an intermediate position thereof, and polishing of the bent portion is performed on a flat plate surface. Unlike processing, it requires special processing and is more difficult to process. Therefore, various methods have been tried to uniformly treat the entire surface of the surface, but no effective method has been proposed.

  In consideration of the above problems, the present invention has a strength equal to or higher than that of structural members such as various stainless steels that are mass-produced, and has an appearance that is obtained by subjecting an alloy material such as stainless steel to surface processing. It is an object of the present invention to provide a composite decorative structural member having a solid cross section having a solemn, high-class feeling, weight feeling, high-quality aesthetics, and design, and a method for producing the same.

  As a means for solving the above-mentioned problems, the present invention is arranged in such a manner that an iron-based structural member including various types of steel is centered and the outer periphery thereof is surrounded by a plurality of thin steel plates such as stainless steel as a decorative material. A cross section is formed, and the outer surface of the thin steel plate is preliminarily subjected to necessary surface treatment and / or bending, and each thin steel plate is joined at a plurality of locations, and the necessary edge is obtained by the yarn surface treatment applied to the joining location. It was set as the structure of the formed composite decorative structure member.

  The composite decorative structural member of the present invention having the above-described configuration is obtained by arranging a structural member at the center and bonding and integrating a thin steel plate on the outer periphery thereof. And it assumes that it is used as a design member for the purpose of the structural member as the use. For this reason, the cross section of the member is a solid cross section, and the appearance is not a rough state like the mass-produced stainless steel, but it is a majestic necessary for the place where it is installed, high quality, heavy feeling, high quality Has a sense of beauty.

  As a method of manufacturing the above-mentioned composite decorative structural member, a plurality of stainless steel or the like having a predetermined width and length in advance so as to conform to the outer shape of an iron-based structural member including various types of steel plates arranged in the center. Each of the thin steel plates is subjected to the necessary surface treatment and / or bending process in a flat plate shape, and after inserting structural members into the space surrounded by some of the thin steel plates, other thin steel plates The entire circumference of the steel sheet and the structural member are joined with each other in advance, and in close contact with each other or by joining means for integrating them on the surfaces of the two members. Thus, a method for producing a composite decorative structure member that forms a composite decorative structure member can be employed.

  According to the method for manufacturing a composite decorative structural member, a thin steel plate disposed on the outer periphery is in a flat stage before being joined, and a surface finish required in advance for the outer surface after integration. Required when using conventional mass-produced structural members, such as stainless steel, in places where design is required, by providing sufficient processing and finishing the bending and bending processes with high precision. The surface finishing that is performed can be applied to the thin steel plate in a flat plate shape, not to the die steel. For this reason, the surface finishing work is facilitated, the labor required for the surface finishing is reduced, and the accuracy of the surface finishing process is improved. Further, the composite decorative structural member having a beautiful appearance and excellent in design is obtained because the strength is equal to or higher than that of a structural member such as stainless steel.

  The composite decorative structural member of the present invention is arranged around the structural member, and the outer periphery of the composite decorative structural member is surrounded by a plurality of thin steel plates such as stainless steel as a decorative material to form a solid cross section. The necessary surface treatment and / or bending process is performed in advance, and each thin steel plate is joined at a plurality of locations, and the necessary edge is formed by the yarn surface treatment applied to the joining location. It has a strength equivalent to or better than that of structural members, and the appearance is more majestic than the surface treatment of an alloy material such as stainless steel, and it has a sense of quality, weight, high quality, and design. There is an advantage that a composite cross-section structural member having a solid cross section can be obtained.

  In addition, according to the method for manufacturing a composite decorative structural member, a necessary surface finishing process can be sufficiently performed in advance on the outer surface after integration in a flat plate stage, and bending and bending processes can be performed. By finishing the processing to be performed with high precision, the surface finishing required for conventional stainless steel can be performed in a flat plate shape. For this reason, it is possible to reduce the labor required for the surface finishing, improve the accuracy of the surface finishing process, reduce the labor during the process, and obtain an effect that can be manufactured at an economical cost.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1A is a perspective view of an angle member-shaped composite decorative structure member A1 according to the _first embodiment, FIG. 1B is a cross-sectional view taken along line B-B in FIG. 1A, and FIG. It is an expanded sectional view of the portion of mark C. As shown, the composite decorative structural members A ₁ is (mild steel such as SS material, carbon steel for machine structural use SC, cast iron FC etc.) angle member structural member of iron system including a mold steel shape 1 The outer periphery is arranged so as to be surrounded by a plurality of thin steel plates 2a and 2b made of stainless steel (SUS304 in the illustrated example) as a decorative material.

Stainless steel sheets 2a and 2b made of stainless steel are obtained by cold rolling, and are smoother and smoother than the surface finishes obtained by hot rolling, drawing and extrusion at the raw material stage. excellent materials have been used, the outer surface thereof, further if necessary by length, previously subjected to necessary surface treatment and / or bending in the width direction, as a design member of the composite decorative structural members a ₁ A compatible material is used. In the example of the embodiment, the plate thickness is 1.5 mm. The plate thickness of the thin steel plates 2a and 2b is not limited to the above thickness, but a thin plate of about 1 to 3 mm is used depending on the application to be used.

As the design materials of the composite decorative structural members A _1, in addition to stainless steel sheet may also be used, for example, thin plate of various alloy material aluminum alloy or the like. In addition, the iron-based structural member 1 has mechanical characteristics such as compression, tensile, and shear strength required for the place and facility where it is used, and is equivalent to or higher than that of a conventional structural member such as stainless steel. It shall have strength. Each of the thin steel plates 2a and 2b is bent into a shape suitable to enclose the structural member 1, and is joined along the length direction at a plurality of sections of the cross section, and the yarn surface treatment applied to each joining place Necessary edge portions are formed.

3 provided as an example of a bending part is a shir processing part, and a groove is formed in advance by a cutter of a shikal processing device inside a flat plate-shaped corner portion of the composite decorative structure member A _1. The thin plate steel plates 2a and 2b are bent at the SiCal processing portion 3, and an edge portion is formed at the outer corner. Reference numeral 4 denotes a yarn surface processed portion in which each of the thin steel plates 2a and 2b is brought into contact with the butted portion of the end portions 2e and 2e, and then the edge surface is subjected to thread surface processing. Reference numeral 5 denotes a high-strength, high-adhesive metal adhesive capable of joining metals together, and is used as an example of a joining means.

  Before the thin steel plates 2a and 2b are brought into close contact with the outer periphery of the iron-based structural member 1, the end portions 2e of the respective thin steel plates 2a and 2b are precisely cut into an inclined end surface of 45 degrees. The end portions 2e and 2e are brought into contact with each other and brought into close contact with the structural member 1 to be integrated. The manufacturing method will be described later. Further, the outer periphery of the iron-based structural member 1 is coated with a rust-preventing paint in advance, or is subjected to a rust-proofing treatment such as galvanization, and the thin steel plates 2a and 2b are brought into close contact with each other and integrated. The structure member 1 must be treated so that rust does not occur due to air entering from the gaps.

  The surface treatment applied to the surfaces of the thin steel plates 2a and 2b has various surface finishes such as mirror finish, coloring, etching, blasting, vibration finishing, etc., or a mixture of these various surface finishes. Any surface finish may be used. However, in the case of mirror finish, a special abrasive containing acid is used, and in the case of color development, blasting, vibration finishing, etc., use a polishing processing device (buffing machine, disk polishing machine, etc.) according to each case. Polishing is performed according to the content of the necessary polishing treatment.

The composite decorative structural members A ₁ of thin steel plate 2a, the outer surface of scolding processing portion 3 subjected edge portion in 2b, in the same surface state as that required for the edge portion of the stainless steel type, such as steel of solid cross section As a condition, it is not a sharp edge that touches the edge when touching the edge, but an edge that has a corner to the extent necessary to give a sufficient appearance as a luxurious, high-quality, high-grade, heavy material. Must be in shape. This is because when the edge portion is greatly rounded, the texture required for the above-described appearance is deteriorated.

  The joining ends of the thin steel plates 2a and 2b are premised on the use of those cut at exactly 45 degrees from each other. However, the processing of the end portions 2e and 2e that are in contact with each other is always accurately processed at an inclination angle of 45 degrees. In fact, as shown in FIGS. 2 (a) and 2 (b), the end portions 2e and 2e are opened to the outside by a gap g, and the inner side In some cases, the gap g is open. However, since the thin steel plates 2a and 2b are thin, even if this gap g exists, the gap g is crushed by pressing the gaps g with each other by a jig such as a pressing device, forcibly, as shown in FIG. As shown in the figure, the outer opening is particularly crushed and joined.

At this time, the gap d opened to the outside must be so small that it cannot be visually recognized that there is a gap. Thin steel plate 2a within the allowable range, 2b in a state in which were pressed together in the gap d, appropriate space to hold the gap, the first spot welding the joint end in the longitudinal direction of the composite decorative structural members A ₁ Apply with. Thereafter, continuous welding is performed over the entire length of the joint end while the gap d is maintained. Then, the yarn surface is processed on the outer surface of the joining end by a grinding means such as a grinder.

  The thread surface processing portion 4 formed by this processing is not in the form of a sharp corner so as to cause scratches on the hand when contacted, and it must be in the form of an acute angle by visual observation. However, the edge processing is performed so that the surface state of the yarn surface after finishing further becomes a surface continuous with the surface state that has already been processed on the thin steel plates 2a and 2b. This is because the appearance is majestic and a composite decorative structure member having a sense of quality, weight, and high quality is obtained.

Incidentally, JIS composite decorative structural members A ₁ is the outer circumference thin steel plate 2a of the structural member 1, adhesion and 2b, because those were integrated by bonding, defined with respect to structural member 1 Since the width and thickness of the thin steel plates 2a and 2b are larger than the outer dimensions of the stipulated dimensional standard of the standard steel plate, the design needs to be designed in consideration of the dimensional difference. However, the strength required for design can be obtained by the material, shape, and mechanical characteristics of the structural member 1 excluding the thickness of the thin steel plates 2a and 2b.

  The metal adhesive 5 as a joining means may be any type of adhesive as long as it can bond metals to each other, but generally an epoxy-based or cyanoacrylate-based resin adhesive is used. . As special examples of metal adhesives, for example, the adhesives described in JP-A-6-136342, JP-A-7-286159, JP-A-11-112554, and the like can be used. In general, metal adhesives are considered to be vulnerable to impact, but the thin steel plates 2a and 2b attached to the outer periphery of the structural member 1 are not peeled off even when impact is applied by external force. The adhesive must have sufficient adhesive strength.

Production of the composite decorative structural members A ₁ is performed in the following procedure. First, as shown in FIG. 3A (a), two thin plates made of stainless steel having a predetermined length (4 to 6 m) whose width direction is cut into a predetermined dimension (width corresponding to the outer peripheral surface of the steel plate). Steel plates 2a and 2b are prepared. It is assumed that the end portions 2e and 2e at both ends of the thin steel plates 2a and 2b are previously cut at 45 degrees. Then, as shown in FIG. 3A (b), a groove is formed by a cutter of a decal processing device at a position in a predetermined width direction on the inner surface when the thin steel plate 2b is bent, and so-called decal processing is performed. To do. In the illustrated example, this position is a position set within a range of dimensional accuracy corresponding to a half-folded half-width (L + T) determined for a shape steel such as an angle member.

  After performing the above-described cical processing, the sheet steel plate 2b is bent by applying a pressing pressure to the sheet steel plate 2b at the position of the width L, L with a press bending machine, and as shown in FIG. The L portion is bent at a right angle, and the tip portion thereof is also bent at a right angle to form a bowl-shaped cross section. Thereafter, the metal adhesive 5 is applied as a joining means to the entire inner surface of the bent thin steel plate 2b or the outer surface of the structural member 1 corresponding to the inner surface, and the structure is within the cross-sectional shape. The member 1 is inserted (see FIG. 3A (d)). Then, the thin steel plate 2b is strongly pressed against the inserted structural member 1 with a press or the like, and is joined to the structural member 1 with the metal adhesive 5. Note that 1 f is an inner surface of the structural member 1.

  Next, as shown in FIG. 3B (e), the other thin steel plate 2a is bent at a predetermined position (not at the edge portion). In this bending process, as shown in the drawing, both flat portions of the thin steel plate 2a are pressed against the bending round bar R to form a bent portion 2r (in contrast, the processing round bar R is bent into the thin steel plate 2a. (It may be processed by pressing at the position of the portion 2r) (see FIG. 3B (f)). The bending portion 2r is generally formed so as to be in close contact with the inner surface of a curved portion of a shape steel such as an angle material. In addition, 1r is a bending part of the structural member 1.

When the bending of the bent portion 2r is finished, as in the case of the thin steel plate 2b, the metal bonding is applied to the surface of the bent inner surface of the structural member 1 that has already been joined or the outer surface of the bent portion 2r of the thin steel plate 2a. Agent 5 is applied. Then, the thin steel plate 2a is brought into close contact with the structural member 1 and joined. When the joining is completed, a composite decorative structure member A1 shown in FIG. ₁ is formed. In addition, the round rod R for bending is only one type in order to proceed the bending process step by step as a diameter suitable for bending that conforms to the arc curve of the bent portion on the inner surface side of the shape steel such as an angle material. It is better to prepare several different diameters and use them according to the bending stage.

As described above, the composite decorative structure member A ₁ having the above-described configuration is intended to be a structural member as a use and is assumed to be used as a design member. For this reason, the cross section of the member is a solid cross section, and the appearance is not a rough state like the mass-produced stainless steel, but it is a majestic necessary for the place where it is installed, high quality, heavy feeling, high quality Has a sense of beauty. This is because the structural member 1 is arranged at the center, and the thin steel plates 2a and 2b are in close contact with each other and joined and integrated.

  That is, the thin steel plates 2a and 2b arranged on the outer periphery are sufficiently subjected to necessary surface finishing in advance on the outer surface after joining and integration in a flat plate stage before joining. By finishing the bending and bending processes with high accuracy, the surface finishing required for conventional stainless steel can be applied in the form of a flat plate, reducing the work required for surface finishing and surface finishing. And the strength is equivalent to or higher than that of a structural member such as stainless steel, and therefore, it provides a beautiful appearance with excellent design and low cost and a low cost composite decorative structural member. I can do it.

However, the above-mentioned surface finishing is the surface finishing of any one of the above-described mirror surfaces, coloring, etching, blasting, vibration, etc., or a mixed processing of these various surface finishings. Further, using the structural member 1 of the composite decorative structural members A ₁ thin steel plate 2a of the outer periphery of the adhesion and 2b, but using a metal adhesive 5 as joining means for joining, for example, screws as another joining means The structural member 1 and the thin steel plates 2a and 2b can be stopped, or the small number of holes provided in the thin steel plates 2a and 2b can be welded and stopped. In that case, it is necessary to perform processing within a range that does not affect the surface finish.

In the said embodiment, although the example of the shape steel shape of an angle material was demonstrated as an example of a composite decorative structure member, a composite decorative structure member is not limited to said example, It can apply to various structural members. . As a modification thereof, a composite makeup structure using the channel 1C, the H-shaped steel plate 1H, and the flat bar 1B of the second, third, and fourth embodiments in FIGS. 4 (a), (b), and (c). sectional view of the use members _{a 2, a 3, a 4} , or an external perspective view. In the example of the composite decorative structure members A ₂ and A ₃ , two or four thin steel plates 2a and 2b are used, and only the shape is different from the composite decorative structure member A _{1 of} the first embodiment. Therefore, the same members and the same components are denoted by the same reference numerals, and detailed description thereof is omitted.

  In addition, although the example of the composite decorative structure member is basically shown in the above various examples, even if it is a reinforcing member instead of these structural members, as long as the structure is equivalent to the composite decorative structure member, As long as it can be applied within the scope of the gist of the present invention, it is included in the present invention.

  The composite decorative structural member of the present invention has a solid cross section formed around a structural member and surrounded by a plurality of thin steel plates such as stainless steel as a decorative material, and is necessary on the outer surface of the thin steel plate Surface treatment and / or bending, and each sheet steel plate is joined at a plurality of locations, and it has a configuration having the necessary edges by the yarn surface treatment applied to the joining locations. It is widely used for structural members such as luxury apartments, underground shopping streets, and other buildings that require a luxurious atmosphere and luxury and weight.

Composite decorative structural member of the first embodiment Partial enlarged view of butt portion of sheet steel Explanatory drawing of the manufacturing process of composite decorative structural members (first half) Explanatory drawing of the manufacturing process of composite decorative structural members (second half) Sectional drawing of the composite cosmetic structure member of 2nd-4th embodiment, or external appearance perspective view

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Structural member 1r, 2r Bending process part 2a, 2b Thin steel plate 2e End part 3 Sical processing part 4 Thread surface processing part (Thread surface processing)
5 Metallic adhesives A _{1 to} A ₄ Composite decorative structure members

Claims (3)

  The iron-based structural member 1 including various types of steel is arranged around the center, and the outer periphery thereof is surrounded by a plurality of thin steel plates 2a, 2b such as stainless steel as a decorative material, and a solid steel plate 2a, The outer surface of 2b is subjected to necessary surface treatment and / or bending in advance, and each thin steel plate 2a, 2b is joined at a plurality of locations, and a necessary edge is formed by the yarn surface treatment 4 applied to the joining location. Composite makeup structural member.   2. The composite decorative structure member according to claim 1, wherein the structural member 1 and the thin steel plates 2 a and 2 b are closely adhered and bonded together with a metal adhesive 5. Necessary for each of a plurality of thin steel plates 2a and 2b such as stainless steel having a predetermined width and length in advance so as to conform to the outer shape of the iron-based structural member 1 including various types of steels arranged in the center. subjected tabular surface treated and / or bending are, after insertion of the structural member 1 in the space surrounding the predetermined thin steel plate 2b of which the middle Nde entire circumference of the enclosed other thin steel plate 2a actual A cross-section is formed , and between the surfaces where the respective thin steel plates 2a, 2b and the structural member 1 are joined, the joining means for joining or integrating with either member or the surfaces of both members in advance is in close contact A method for producing a composite decorative structure member, which is joined to form a composite decorative structure member.

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