JP4977901B2 - Truss material - Google Patents

Description

  The present invention relates to a truss material capable of integrally forming a diagonal member of a three-dimensional truss.

Three-dimensional trusses are used for the skeleton of various structures including the field of architecture and civil engineering. Three-dimensional trusses usually have a large number of diagonal materials arranged one by one, and both ends of the diagonal material must be joined to the string material by bolts, nuts, welding, etc., which is very laborious to assemble ( For example, see Patent Document 1.)
In Patent Document 2, as a truss bar used for a precast concrete plate, a large number of cuts are formed in the longitudinal direction of a strip-shaped plate material, the plate material is stretched in the width direction to form an expanded metal shape, and then the stretched plate material is expanded in the width direction. Is formed by being bent into a mountain shape at the center. According to this method, the operation | work which connects a some member by welding etc. becomes unnecessary, and a mountain-shaped truss reinforcement can be manufactured from a single board member. However, since the truss cannot be formed unless the plate material is stretched after bending, the production is troublesome.
JP 2003-268872 A JP-A 63-70748

  An object of the present invention is to provide a truss material that can easily and integrally form a diagonal member of a three-dimensional truss simply by stretching in a predetermined direction.

  In order to achieve the above object, in the truss material according to the first aspect of the present invention, a plurality of quadrangles are arranged side by side in the front-rear and left-right directions sharing a side, and a cut is formed along the vertical direction at the intersection of the sides of the quadrangle Are formed, and one of the intersecting portions located at both ends of each side of the quadrangle is provided with a cut from the upper surface side and the lower surface side is left uncut, and the other intersecting portion has a cut. It is provided from the lower surface side, and the upper surface side is left uncut.

  In the truss material according to the second aspect of the present invention, a plurality of hexagons share a side in the front-rear and left-right directions, and a cut is formed along the vertical direction at the intersection of the sides of the hexagon. One of the intersections located at both ends of each side of the hexagon is provided with a cut from the upper surface side and the lower surface side is left uncut, and the other intersection is provided with the cut from the lower surface side. The upper surface side is left uncut.

  In addition to the structure of the invention of claim 1 or 2, the truss material according to the invention of claim 3 is an intermediate portion of each side of a quadrangle or hexagon, and is provided from a cut line provided from the upper surface side and a lower surface side. The reinforcing part is provided continuously in the vertical direction between the cuts.

  The truss material according to the invention described in claim 4 has, in addition to the structure of the invention described in claims 1 to 3, a square or hexagonal side and an edge in the vertical direction at each intersection of the sides. Features.

  When the truss material according to the first aspect of the present invention is pulled in all directions, each cut is expanded, and the diagonal member of the three-dimensional truss can be easily formed integrally.

  When the truss material according to the invention of claim 2 is pulled in all directions, the cuts are expanded, and the diagonal members of the three-dimensional truss can be easily formed integrally.

  Further, in the truss material according to the invention described in claim 3, each diagonal member is reinforced by the reinforcing portion, and the strength of the three-dimensional truss can be further increased.

  Furthermore, when the truss material according to the invention of claim 4 is formed into a three-dimensional truss diagonal member by pulling it in all directions, a hole in the vertical direction is formed at the diagonal lattice point formed by the crossing portions on the upper surface side and the lower surface side that are left uncut. Therefore, it is possible to easily attach the connecting material that connects the diagonal lattice points using the holes. Further, a plurality of three-dimensional trusses formed using three-dimensional truss diagonal members made of the present truss material can be easily connected in the front-rear direction and the left-right direction by using the holes.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a first embodiment of the truss material of the present invention. In this truss material, as shown in FIG. 1 (a), a plurality of quadrilaterals 1 are arranged side by side in the front-rear and left-right directions in plan view, and the side-to-side intersections 4a and 4b corresponding to the corners of the quadrangle 1 are arranged. In addition, cut lines 5a and 5b are respectively formed along the vertical direction. In FIG. 1 (a), every other side 3 in the direction in which the sides 3 are continuous, and intersecting portions 4a arranged in the diagonal direction of the quadrangle 1 (in FIG. 1 (a), at the intersections of vertical and horizontal two-dot chain lines 7, 7). As shown in FIG. 1 (b), the intersection 5) is provided with a cut 5a from the upper surface side and the lower surface is left uncut, and the remaining intersection 4b (vertical and horizontal dotted lines 8 in FIG. 1 (a)). , 8), the cut portion 5b is provided from the lower surface side, and the upper surface side is left uncut. In any side 3 of the quadrangle 1, the intersecting portions 4 a and 4 b located at both ends of the side 3 have cuts 5 a and 5 b that are staggered from the top and bottom, one of which leaves the lower surface side and the other is the upper surface. The side is left uncut. A reinforcing portion 6 having a circular cross section is continuously provided in the middle portion of each side 3 in the vertical direction, and the cut lines 5 a and 5 b are provided so as to leave the reinforcing portion 6.

  2A to 2C show a procedure for manufacturing the truss material according to the first embodiment. As shown in FIG. 2A, the truss material is formed from a porous extruded shape 9 having a mesh-like cross-sectional shape in which a plurality of quadrilaterals 1 share side 3 and are arranged side by side. The material of the extruded shape member 9 is aluminum. First, as shown in FIG. 2 (b), the cut shape 5a is vertically moved by using an end mill, a saw blade, or the like at the intersection 4a located at each intersection of the two-dot chain lines 7, 7. Process along the direction. At this time, the lower surface side is cut away from the end surface by a distance b. Further, as shown in FIG. 2 (c), the cut 5b is machined along the vertical direction at the intersection 4b located at each intersection of the dotted lines 8 and 8 from below using an end mill or a saw blade. At this time, the upper surface side is cut away from the end surface by a distance b.

  When this truss material is pulled in all directions as indicated by arrows in FIG. 1, the cut lines 5a and 5b are expanded to form a three-dimensional truss diagonal member 10 as shown in FIGS. The diagonal member 10 includes four pieces arranged in a quadrangular pyramid as one unit, which are connected in the front-rear direction and the left-right direction and are integrated. Further, the reinforcing portions 6 are made of diagonal materials one by one. The truss material deformed in this manner is fixed by passing the chord material vertically and horizontally in a lattice form at the upper and lower diagonal lattice points 11a and 11b (the remaining intersections 4a and 4b become diagonal lattice points 11a and 11b). Or by attaching two panels so as to sandwich the two panels from both sides, a flat solid truss can be easily manufactured, and the solid truss can be suitably used as a wall, floor, roof, etc. of a building, for example. it can.

  FIG. 5 shows an application example of the truss material of the first embodiment. In this truss material, as shown in FIG. 5A, the sides of the quadrangle 1 and the intersections 4a and 4b of the sides are formed in a hollow shape having through holes 12 in the vertical direction. The other points are the same as those shown in FIG. As shown in FIG. 6, this truss material is also a porous extruded section 9 having a mesh-like cross-sectional shape in which a plurality of squares 1 share side 3 and are arranged in the front-rear and left-right directions, and each intersection 4a, 4b. Are formed into a substantially cylindrical shape by alternately forming cuts 5a and 5b in the intersecting portions 4a and 4b located at both ends of each side 1 from the upper surface side and the lower surface side.

  FIG. 7 shows a state in which the above truss material is pulled and stretched in all directions to form a three-dimensional truss diagonal member 10. The crossed portions 4a and 4b on the upper surface side and the lower surface side that are left uncut become diagonal material lattice points 11a and 11b, respectively, and each diagonal material lattice point 11a and 11b has a through-hole 12 in the vertical direction.

  FIG. 8 shows a procedure for manufacturing the three-dimensional truss 15 by attaching the panels 14 a and 14 b to the upper and lower surfaces of the three-dimensional truss diagonal member 10. As shown in FIG. 8A, the lower panel 14a has the same arrangement as that of the diagonal lattice points 11a (intersection 4a) on the lower surface side of the three-dimensional truss diagonal member 10, and pins 13 such as stud bolts are provided. The upper panel 14b has the same arrangement as that of the diagonal lattice points 11b (intersection 4b) on the upper surface side of the three-dimensional truss diagonal member 10 and protrudes the pin 13 downward in advance. Keep it. The upper and lower panels 14a and 14b can be easily attached by inserting the pins 13 into the through holes 12 of the diagonal lattice points 11a and 11b, and a flat three-dimensional truss 15 as shown in FIG. it can. Further, only holes for passing bolts or the like are opened in the upper and lower panels 14a and 14b first, and the holes of the panels 14a and 14b and the through holes 12 of the diagonal lattice points 11a and 11b are combined to form the panels 14a and 14b in three dimensions. The panels 14a and 14b may be mounted by placing them on the truss diagonal 10 and inserting bolts and rivets into the holes of the panels 14a and 14b and the through holes 12 of the diagonal grid points 11a and 11b. Good.

  Further, as shown in FIG. 9 (a), the rod-shaped connecting member 16 provided with the notches 17 at a predetermined interval is used, and as shown in FIG. The diagonal grid points 11a and 11b (intersections 4a and 4b) are fitted in a lattice shape from above and below, and the diagonal grid points 11a and 11b (intersections 4a and 4b) are connected by a connecting material 16. Thus, a three-dimensional truss 15 can be used. It should be noted that the connecting material 16 for fitting the notch 17 into the diagonal grid points 11a and 11b (intersections 4a and 4b) is attached to the diagonal grid points 11a and 11b (shown in FIGS. 1 to 4). A crossing portion 4a, 4b) having no through hole 12 can be similarly implemented. If the diagonal material lattice points 11a and 11b have the through holes 12, instead of providing the notches 17 in the connecting material 16, the pins protrude in the vertical direction and the pins are connected to the diagonal material lattice points 11a and 11b. It is also possible to attach the connecting member 16 by inserting it into the through hole 12 of 11b.

  A three-dimensional truss having a larger area can be constructed by connecting a plurality of the three-dimensional truss 15 formed as described above in the front-rear direction and the left-right direction. In that case, as shown in FIG. 10, further connecting members 18a and 18b are passed to the diagonal lattice points 11a and 11b (intersections 4a and 4b) of the adjacent three-dimensional trusses 15 and 15, respectively. By using the through holes 12 at the lattice points and fixing with bolts 19 or the like, the three-dimensional trusses can be easily connected.

  FIG. 11 shows a second embodiment of the truss material of the present invention. In this truss material, as shown in FIG. 11 (a), a plurality of hexagons 2 are arranged side by side sharing a side 3 in plan view, and the intersections 4a and 4b of the sides corresponding to the corners of the hexagon 2 are Cut lines 5a and 5b are formed along the vertical direction. The cuts 5a and 5b are formed by a cut 5a provided from the upper surface side to leave the lower surface side and a cut 5b provided from the lower surface side to leave the upper surface side in the circumferential direction of the six corners of the hexagon 2 Alternatingly arranged. Therefore, in any side 3 of the hexagon 2, the intersections 4 a and 4 b located at both ends of the side 3 are formed with the cuts 5 a and 5 b staggered from the top and bottom, and one of them leaves the lower surface side, The other is in a state where the upper surface side is left uncut. A reinforcing portion 6 having a circular cross section is continuously provided in the middle portion of each side 3 in the vertical direction, and the cut lines 5 a and 5 b are provided so as to leave the reinforcing portion 6. As shown in FIGS. 2 (b) and 2 (c), this truss material has a hexagonal mesh-like cross-sectional shape. It can be manufactured by processing each 5b.

  When this truss material is pulled in all directions as indicated by arrows in FIG. 11, the cut lines 5a and 5b are expanded to form a three-dimensional truss diagonal member 10 as shown in FIGS. The diagonal member 10 has three units arranged in a triangular pyramid as one unit, and these are connected in a hexagonal mesh arrangement in plan view and connected in the front-rear and left-right directions. The truss material deformed in this way can be fixed by passing a chord material over the upper and lower diagonal lattice points 11a, 11b (the remaining intersections 4a, 4b become diagonal lattice points 11a, 11b) or two pieces. By attaching the panels so as to be sandwiched from both sides, a flat solid truss can be easily manufactured, and the solid truss can be suitably used as, for example, a wall, a floor, or a roof of a building.

  Also in the truss material of the second embodiment, as in the embodiment shown in FIGS. 5 (a) and 5 (b), the sides 4 of the hexagon 2 and the intersections 4a and 4b of the sides are provided with through holes 12 in the vertical direction. Since the connecting material can be easily attached to the diagonal lattice points 11a, 11b (intersections 4a, 4b) using the through holes 12, the three-dimensional truss can be assembled. It becomes easier. Further, as shown in FIG. 10, a plurality of three-dimensional trusses can be connected in the front-rear direction and the left-right direction using the through holes 12.

The present invention is not limited to the embodiment described above. The quadrangle 1 includes not only a square and a rectangle but also a rhombus and a parallelogram. The hexagon 2 is not limited to a regular hexagon, and may be a flat hexagon. The arrangement of the rectangle 1 and the hexagon 2 can be freely set according to the application. The cross-sectional shape of the reinforcing portion 6 is arbitrary, and may be a quadrangular cross section or a fin shape. The reinforcing portion 6 does not have the reinforcing portion 6 (the quadrilateral 1 or the hexagon 2 is constituted only by the straight side 3. ). The cuts 5a and 5b may be thin cuts that cut off only the intersections of the walls (sides). The method for forming the cuts 5a and 5b is arbitrary. As shown in FIG. 14 (a), the truss material of the present invention can also have different heights H1, H2 in the front-rear direction and the left-right direction. When this is stretched, as shown in FIG. 14 (b), Three-dimensional truss diagonal members having different heights in the front-rear direction and the left-right direction can be integrally formed.
The holes of the intersecting portions 4a and 4b do not necessarily have to be through-holes, and the intersecting portions 4a and 4b may be drilled from the top and bottom directions to form holes.

(A) is a top view which shows 1st Embodiment of the truss material of this invention, (b) is the same front view. It is the top view and front view which show the manufacture procedure of the truss material of 1st Embodiment in order. (A) is a top view which shows the state which extended the truss material of 1st Embodiment to four directions, (b) is the same front view. It is a perspective view which shows the state which extended the truss material of 1st Embodiment to four directions. (A) is a top view which shows the application example of the truss material of 1st Embodiment, (b) is a front view of the truss material. FIG. 6 is a perspective view of an extruded profile used when manufacturing the truss material of FIG. 5. It is a perspective view which shows the state which extended the truss material of FIG. 5 to four directions. FIG. 6 is a perspective view sequentially illustrating a procedure for manufacturing a three-dimensional truss by using diagonal members manufactured by stretching the truss material of FIG. 5 in four directions and attaching panels to the upper and lower surfaces thereof. (A) is a front view which shows an example of the connection material which connects diagonal material lattice points, (b) is a perspective view which shows the state which attached the connection material to the three-dimensional truss diagonal material manufactured from the truss material of FIG. FIG. It is a front view which shows the state which connected the three-dimensional truss manufactured using the truss material of this invention in the left-right direction. (A) is a top view which shows 2nd Embodiment of the truss material of this invention, (b) is the same front view. (A) is a top view which shows the state which extended the truss material of 2nd Embodiment to four directions, (b) is the same front view. It is a perspective view which shows the state which extended the truss material of 2nd Embodiment to four directions. It is a front view which shows the application example of the truss material of this invention, (a) is the state before extending, (b) has shown the state after extending.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Quadrangle 2 Hexagon 3 Side 4a, 4b Intersection 5a, 5b Cut 6 Reinforcement part 10 Diagonal material 11a, 11b Diagonal material lattice point 12 Through-hole (hole)
13-pin 14a, 14b Panel (connecting material)
15 Three-dimensional truss 16 Connecting material

Claims (4)

  A plurality of quadrangles are arranged side by side in the front-rear and left-right directions, and a cut is formed along the top-bottom direction at the intersection of the sides of the quadrangle. One of the crossing portions is provided with a cut from the upper surface side and the lower surface side is left uncut, and the other crossing portion is provided with a cut from the lower surface side and the upper surface side is left uncut. .   Multiple hexagons are arranged side by side in the front / rear / left / right direction, and cuts are formed along the vertical direction at the intersections of the hexagonal sides and located at both ends of each side of the hexagon. One of the intersections is characterized in that a cut is provided from the upper surface side and the lower surface side is left uncut, and the other intersection is provided from the lower surface side and the upper surface side is left uncut. Truss material to do.   It is an intermediate part of each side of a quadrangle or hexagon, and a reinforcing part is provided continuously in a vertical direction between a cut provided from the upper surface side and a cut provided from the lower surface side. Item 3. The truss material according to item 1 or 2.   The truss material according to claim 1, 2 or 3, characterized in that a square or hexagonal side has a vertical hole at each side crossing.

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