JP5429530B2 - Aluminum mold joint structure - Google Patents

Description

  The present invention relates to a joining structure of aluminum mold materials used for components of building structures and temporary structures.

  2. Description of the Related Art Conventionally, an aluminum extruded mold member (hereinafter referred to as “aluminum mold member”) having a hollow cross section used for a structural member of a building structure or a temporary structure is known. The aluminum mold material is particularly effective when used as a temporary material because it is possible to manufacture a member that is significantly reduced in weight due to the lightness and high rigidity of aluminum. In many cases, the temporary material made of an aluminum mold is configured to use a high-strength bolt (hereinafter referred to as HTB) so that it can be disassembled.

  On the other hand, when joining steel materials for construction in series, a structure is known in which the steel materials to be joined are abutted, and a splice plate is attached across both sides of the steel plates and bolted and friction-joined (for example, patents) Reference 1).

JP 2001-164657 A

  By the way, since joining members such as a cover plate are generally required when joining the above aluminum mold materials, the weight of the aluminum mold materials is increased, and the labor and work costs for joining and transporting the members are increased. End up. Further, since the cover plate attached to the outer surface of the aluminum mold member protrudes, labor and cost for separately considering layout allocation for reducing interference with other members are generated. Moreover, since it is necessary to provide a stuffing in the hollow part of an aluminum type material in order to raise the intensity | strength of a junction part, the effort and operation cost which concern on this arise.

  This invention is made | formed in view of the above, Comprising: It aims at providing the joining structure of the aluminum type | mold material which can aim at cost reduction.

In order to solve the above-described problems and achieve the object, the aluminum mold material joining structure according to claim 1 of the present invention is a hollow cross-section aluminum mold material joining structure in which a sawtooth-like irregularity is formed on the hollow inner surface of the aluminum mold material the provided to cut in the axial direction, the joint member having irregularities meshing with the irregularities formed on the outer surface, Ri name is inserted into the hollow interior of the aluminum type material, and an outer surface of the hollow inner surface and said coupling member of said aluminum type material A crimping means for crimping, wherein the crimping means includes a bolt hole provided in an outer surface of the aluminum mold member and a bolt hole penetrating the bolt hole provided in the joint member, and a hollow inner surface of the aluminum mold member and an outer surface of the joint member. And has a slit extending in the axial direction from the opening end of the aluminum mold material, and the joint member is a connecting member provided at a position corresponding to the slit and is substantially H-shaped. A plurality of joint plates being coupled in, characterized Rukoto held over the connecting member in the slit.

The bonding structure of aluminum type material according to claim 2 of the present invention, in claim 1 described above, the hollow interior of the aluminum type material, and wherein the Rukoto to have a rib extending in the axial direction.

In addition, in the aluminum mold member joining structure according to claim 3 of the present invention, the unevenness of the hollow inner surface of the aluminum mold material and the unevenness of the outer surface of the joint member are meshed with each other in claim 1 or 2 described above . In the state, the top of the unevenness is not in contact with the trough .

  According to the present invention, in the joined structure of the aluminum mold member having a hollow cross section, a joint member provided with a serrated irregularity on the hollow inner surface of the aluminum mold member so as to cut in an axial direction, and an irregularity meshing with the irregularity formed on the outer surface, Since it is inserted into the hollow inside of the aluminum mold material, the aluminum mold material and the joint member are firmly formed by the friction surface formed between the entire hollow inner surface of the aluminum mold material and the outer surface of the joint member. Friction bonded. For this reason, an aluminum mold can be joined while maintaining the lightness of the aluminum mold without requiring a joining member such as a cover plate. Therefore, the labor involved in joining and transporting the cover plate is reduced. Further, the joint member of the present invention can be stored in the hollow interior of the aluminum mold material during transportation, so that it has high portability, and also plays a role as a padding for the joint portion during friction joining. For this reason, the effort of conveying a member and the effort which provides a stuffing can be reduced. Therefore, it is possible to reduce the joining work of the aluminum mold material, and to reduce the cost of work.

FIG. 1 is a perspective view of an aluminum mold material showing an embodiment of an aluminum mold material joining structure according to the present invention. FIG. 2 is a perspective view of a joint member showing an embodiment of an aluminum mold material joining structure according to the present invention. FIG. 3 is a cross-sectional view of the friction surface of the aluminum mold joint structure according to the present invention. FIG. 4 is an enlarged view of a portion A in FIG. FIG. 5 is a diagram for explaining the principle of pressure-bonding the friction surface. FIG. 6 is a diagram showing the action state of the crimping force when the inclination angle of the slope of the groove of the friction surface is 60 degrees.

  Below, the Example of the joining structure of the aluminum type | mold material which concerns on this invention is described in detail based on drawing. Note that the present invention is not limited to the embodiments.

  As shown in FIGS. 1 and 2, an aluminum mold member joining structure 10 according to the present invention includes an aluminum mold member 12 having a substantially H-shaped hollow section and a joint plate (which can be inserted into a hollow interior 14 of the aluminum mold member 12). (Joint member) 16.

  As shown in FIG. 1, continuous mountain-shaped (sawtooth-shaped) irregularities 20 are provided on two opposing surfaces of the hollow inner inner surface 18 of the aluminum mold 12 so as to cut in the axial direction (vertical direction). A plurality of slits 24 cut in the axial direction are provided at the opening end 22 of the aluminum mold 12, and an HTB (high-strength bolt) 28 as a crimping means is provided on the outer surface 26 of the aluminum mold 12 from the outside. A bolt hole 30 that can be inserted is formed.

  A plurality of ribs 32 extending in the axial direction are provided in the hollow interior 14 of the aluminum mold member 12, and slits 34 notched in the axial direction are also provided in the ribs 32. The rib 32 is provided for reinforcing the cross section when the cross section of the aluminum mold 12 is thinned.

  As shown in FIG. 2, the joint plate 16 connects a plurality of long plate-like joint plates 36 connected in a substantially H shape, and the joint plates 36 to each other, and positions corresponding to the slits 24 and 34 of the aluminum mold 12. It is comprised with the rod-shaped connection member 38 provided in this. Here, some of the connecting members 38 are configured to protrude slightly outward from the outer surface of the joint plate 36.

  On the two opposite surfaces of the outer surface of the joint plate 16 are formed continuous mountain-shaped (sawtooth-shaped) irregularities 40 that mesh with the irregularities 20 of the hollow inner surface 16 of the aluminum mold 12. A bolt hole 42 is provided on the outer surface of the joint plate 36 at a position corresponding to the bolt hole 30 of the aluminum mold 12.

  As shown in FIG. 3, the top portions 44 of the ridges 20 and 40 having a continuous mountain shape (sawtooth shape) are valley portions 46 when the joint plate 16 is inserted into the aluminum mold 12 and the ridges 20 and 40 are engaged with each other. It is made into a flat shape or a round shape so as to be non-contact. As shown in FIG. 4, when the irregularities 20 and 40 are pressed against each other with the crimping force P, a compressive force Fv corresponding to the inclination angle θ of the slope of the groove of the irregularities 20 and 40 is generated. With this compression force Fv, it is possible to obtain an increased frictional force from the same bolt axial force of HTB.

  FIG. 5 is a diagram for explaining the principle of pressure-bonding the friction surface. FIG. 6 is a diagram showing the action state of the crimping force when the inclination angle of the groove on the friction surface is 60 degrees.

  As shown in FIG. 5, the pressure-bonding force P acting in the straight direction toward the top 44 is divided into two component forces Fv (compressive force) acting obliquely downward according to the inclination angle θ of the inclined surface of the groove. . In this case, a relationship of P / 2 = Fv × cos θ is established between the crimping force P and the component force Fv. Thus, by converting the pressure-bonding force P acting in the straight direction into two compressive forces Fv in an oblique direction according to the inclination angle θ of the groove slope, the friction surface by the continuous mountain-shaped irregularities 20 and 40 is obtained. The frictional force can be increased.

  In particular, as shown in FIG. 6, if the inclination angle θ of the groove slope is 60 degrees, P = Fv. Therefore, if a straight pressure direction pressure P is applied by tightening the HTB 28, the pressure pressure P is the same. The two compressive forces Fv having the magnitude act in an oblique direction. By doing so, it is possible to obtain twice the frictional force on the friction surface.

The operation and action of the above configuration will be described.
The joint plate 16 is inserted into the hollow interior 14 of the aluminum mold 12. In this case, when the joint plate 16 is arranged and inserted so that the connecting member 38 is positioned at the upper ends of the slits 24 and 34, the connecting member 38 protruding from the surface of the joint plate 36 is passed through the slit 24, while the joint plate A connecting member 38 that connects the 36 is passed through the slit 34. By operating the protruding connecting member 38 up and down, the joint plate 16 can be slid downward in the hollow interior 14.

  Next, the bolt holes 30 and 42 are aligned by this sliding movement, and the HTB 28 is fastened to the bolt holes 30 and 42 from the outside of the aluminum mold member 12 through the HTB 28, and the aluminum mold member 12 and the joint plate 16 are pressure-bonded. Thus, by using the inside 14 of the hollow cross section, two friction surfaces can be obtained with one joint plate 36, and further, the frictional force obtained per one HTB can be increased by the effect of the uneven pressing described above. Can do. As a result, the number of HTBs 28 and joint plates 16 required to obtain a predetermined frictional force is only half that of a single friction surface, and a significant cost reduction can be achieved.

  In addition, the joint plate 16 is fitted into the hollow interior 14 of the aluminum mold 12, so that a thin member such as the aluminum mold 12 can be prevented from buckling.

  Further, since it is not necessary to attach a joining member such as a cover plate to the outer surface of the aluminum mold member 12, there is no bulge, it is easy to engage with other members, and time and effort are taken into consideration for layout allocation to reduce interference. Is reduced.

  Also, the joining operation can be facilitated by the above-mentioned slide movement mechanism. Furthermore, since the stress transmission is interrupted by the slits 24 and 34, it is possible to prevent the crimping force from being dissipated due to the rib 32 transmitting the axial force of the HTB 28.

  Further, since the joint plate 16 can be stored in the hollow interior 14 of the aluminum mold 12, the joint plate 16 can be transported in a one-piece form in which the joint plate 16 is accommodated in the interior 14 of the aluminum mold 12. For this reason, compared with the conventional case in which it is necessary to separately transport a joining member such as a cover plate, the labor and time required for transportation can be reduced. In addition, since there is no protruding portion on the outer surface of the joint structure, the degree of freedom in combining the members is increased, and there is no possibility of being caught by the protruding portion during work, so that safety effects such as improved work safety can be expected. .

  As described above, according to the present invention, in a joining structure of aluminum mold members having a hollow cross section, serrated irregularities are provided in the hollow inner surface of the aluminum mold material so as to cut in the axial direction, and the irregularities meshing with the irregularities are formed on the outer surface. Since the formed joint member is inserted into the hollow interior of the aluminum mold material, the aluminum mold material is formed by the friction surface formed between the entire hollow inner surface of the aluminum mold material and the outer periphery of the joint member. The joint member is firmly friction-bonded. For this reason, an aluminum mold can be joined while maintaining the lightness of the aluminum mold without requiring a joining member such as a cover plate. Therefore, the labor involved in joining and transporting the cover plate is reduced. Further, the joint member of the present invention can be stored in the hollow interior of the aluminum mold material during transportation, so that it has high portability, and also plays a role as a padding for the joint portion during friction joining. For this reason, the effort of conveying a member and the effort which provides a stuffing can be reduced. Therefore, it is possible to reduce the joining work of the aluminum mold material, and to reduce the cost of work.

  As described above, the aluminum mold material joining structure according to the present invention is useful for joining aluminum mold materials used for components of building structures and temporary structures, and in particular, it is desired to reduce the cost of work. Suitable for joining aluminum molds.

10 Joining structure of aluminum mold 12 Aluminum mold 14 Hollow interior 16 Joint plate (joint member)
18 hollow inner inner surface 20, 40 irregularities 22 open end 24, 34 slit 26 outer surface 28 HTB (high strength bolt) (crimping means)
30, 42 Bolt holes 32 Ribs 36 Joint plates 38 Connecting members 44 Top 46 Valleys θ Inclination angle

Claims (3)

In the joining structure of aluminum molds with a hollow section,
Provided so as to cut the serrated irregularities in the hollow inner surface of the aluminum mold material in the axial direction,
The joint member having irregularities meshing with the irregularities formed on the outer surface, Ri name is inserted into the hollow interior of the aluminum type material,
A crimping means for crimping the hollow inner surface of the aluminum mold and the outer surface of the joint member;
The crimping means clamps and crimps the hollow inner surface of the aluminum mold member and the outer surface of the joint member with bolts that penetrate the bolt hole provided on the outer surface of the aluminum mold member and the bolt hole provided in the joint member. Yes,
Having a slit extending in the axial direction from the opening end of the aluminum mold,
Aluminum the joint member, that a plurality of joint plates are connected in a substantially H-shape connecting member provided at a position corresponding to the slit, characterized Rukoto held over the connecting member in the slit Mold material joint structure. Wherein the hollow interior of the aluminum type material, the bonding structure of aluminum type material according to claim 1, characterized in Rukoto to have a rib extending in the axial direction. And the uneven hollow inner surface of the aluminum type material, in the state where the engaged and the uneven outer surface of the joint member, to claim 1 or 2, wherein the top portion of the concavo-convex is not in contact with the valleys Bonding structure of the aluminum mold described.

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