Aluminum shape material reinforcement structure

Abstract

To provide an aluminum shape material reinforcement structure capable of suppressing the influence of deformation of one of a shape material and a reinforcement member caused by a temperature change on deformation of the other while reducing the size of the shape material.SOLUTION: An aluminum shape material reinforcement structure 1 comprises: a shape material 10 formed by an aluminum material and having a hollow s1 formed therein; and a reinforcement member 20 formed by a material different from the aluminum material and disposed in the hollow s1 in a non-joined state with the shape material 10. The reinforcement member 20 is disposed so as to stick out in a first direction T1 in which a load is applied on the shape material 10.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a reinforcement structure for an aluminum profile. [Background technology]

[0002] Aluminum extrusions have traditionally been used in many building materials due to their lightweight and easy-to-process characteristics. In recent years, the number of large building materials has been increasing. To prevent deflection of building materials due to strong winds or snow accumulation, methods have been adopted to increase the section modulus of the extrusions by increasing the thickness or outer diameter of the extrusions, or to insert steel reinforcing members into the hollow interior and reinforce the extrusions with bolts or adhesives. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-112026 Summary of the Invention [Problem to be solved by the invention]

[0004] Methods that increase the section modulus of extrusions have the problem of reducing design and workability due to the increased size and weight of the extrusions.Reinforcement methods that use bolt fastening or adhesive bonding have the problem of distortion of extrusions and reinforcing members and deterioration of joints due to differences in the thermal expansion coefficients of different materials.

[0005] The present disclosure has been made in consideration of the above circumstances, and provides a reinforcing structure for aluminum extrusions that can reduce the size of the extrusion while preventing deformation of either the extrusion or the reinforcing member due to temperature changes from affecting the deformation of the other extrusion. [Means for solving the problem]

[0006] A reinforcing structure for an aluminum profile according to one embodiment of the present disclosure comprises a profile formed from an aluminum material and having a hollow interior, and a reinforcing member formed from a material different from the aluminum material and disposed in the hollow without being joined to the profile, wherein the reinforcing member is disposed so as to brace the profile in a first direction in which a load acts on the profile. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a cross-sectional view of a reinforcement structure of an aluminum profile according to a first embodiment. [Figure 2] FIG. 6 is a cross-sectional view of a reinforcement structure of an aluminum profile according to a second embodiment. [Figure 3] FIG. 10 is a cross-sectional view of a reinforcement structure of an aluminum profile according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] (First embodiment) Hereinafter, a reinforcement structure for an aluminum extrusion according to a first embodiment will be described with reference to the drawings. As shown in Fig. 1, the reinforcement structure 1 for an aluminum extrusion according to this embodiment includes a section 10 and a reinforcing member 20. The reinforcement structure 1 for an aluminum extrusion is used for building materials such as fittings.

[0009] The section 10 is a long member extending in a direction perpendicular to the plane of the paper in Fig. 1. The up-down direction of the paper in Fig. 1 is defined as direction T1 (first direction), and the left-right direction of the paper is defined as direction T2 (second direction).

[0010] The profile 10 is made of aluminum material. The profile 10 is formed in a substantially rectangular ring shape in a cross section perpendicular to the longitudinal direction. A hollow space s1 is formed inside the profile 10. The hollow space s1 is formed over substantially the entire length of the profile 10 in the longitudinal direction.

[0011] The frame 10 has a first plate portion 11, a second plate portion 12, a third plate portion 13, and a fourth plate portion 14.

[0012] The first plate portion 11 and the second plate portion 12 are formed in a flat plate shape. The plate surfaces of the first plate portion 11 and the second plate portion 12 face in the T1 direction. The first plate portion 11 and the second plate portion 12 are arranged opposite each other in the T1 direction.

[0013] The third plate portion 13 and the fourth plate portion 14 connect an end of the first plate portion 11 and an end of the second plate portion 12. The third plate portion 13 and the fourth plate portion 14 are formed in a flat plate shape. The plate surfaces of the third plate portion 13 and the fourth plate portion 14 face in the T2 direction. The third plate portion 13 and the fourth plate portion 14 are arranged opposite each other in the T2 direction.

[0014] A first rail 15 is provided on the inner surface of the first plate portion 11, approximately in the center in the T2 direction. The first rail 15 is provided over approximately the entire length of the first plate portion 11 in the longitudinal direction. The first rail 15 has a pair of first ribs (retaining portions) 15a. The first ribs 15a extend from the first plate portion 11 toward the second plate portion 12. The pair of first ribs 15a are arranged with a gap in the T2 direction. The distance between the pair of first ribs 15a is approximately the same as or slightly longer than the plate thickness of a reinforcing member 20, which will be described later.

[0015] A second rail 16 is provided on the inner surface of the second plate portion 12, approximately in the center in the T2 direction. The second rail 16 is provided over approximately the entire length of the second plate portion 12 in the longitudinal direction. The second rail 16 is arranged opposite the first rail 15 in the T1 direction. The second rail 16 has a pair of second ribs (retaining portions) 16a. The second ribs 16a extend from the second plate portion 12 toward the first plate portion 11. The pair of second ribs 16a are arranged with a gap in the T2 direction. The distance between the pair of second ribs 16a is approximately the same as or slightly longer than the plate thickness of a reinforcing member 20, which will be described later.

[0016] The reinforcing member 20 is disposed in the hollow s1. The reinforcing member 20 is formed in a flat plate shape. The plate surface of the reinforcing member 20 faces the T2 direction. The reinforcing member 20 is provided over substantially the entire length of the profile 10 in the longitudinal direction. The shape of the reinforcing member 20 is not limited to a flat plate shape, and it may be formed from a square tube or the like that is rectangular in cross section perpendicular to the longitudinal direction, and may be configured to be disposed between a pair of first ribs 15a and a pair of second ribs 16a by increasing the distance between them.

[0017] The reinforcing member 20 is formed of a material different from the aluminum material that forms the section 10. The reinforcing member 20 is formed of a material that is more rigid than aluminum. The reinforcing member 20 is formed of, for example, CFRP (Carbon Fiber Reinforced Plastics), steel, or the like.

[0018] The reinforcing member 20 is in a non-bonded relationship with the profile 10. The reinforcing member 20 is not chemically bonded to the profile 10 with an adhesive or the like, or mechanically fastened with double-sided tape or bolts or the like.

[0019] One end 20a of the reinforcing member 20 is held by the first rail 15 and sandwiched between a pair of first ribs 15a. The other end 20a of the reinforcing member 20 is held by the second rail 16 and sandwiched between a pair of second ribs 16a.

[0020] The end 20a of the reinforcing member 20 is in contact with the first plate portion 11 and the second plate portion 12, or is disposed with a small gap therebetween.

[0021] When the shaped member 10 is in use, a load such as an external force acts in the direction T1. When the shaped member 10 is used as a horizontal frame or stile of a door or window frame with its longitudinal direction facing the width direction of the door or window frame, a load acts in the first direction T1 due to gravity, air pressure in the indoor / outdoor direction, etc. When the shaped member 10 is used as a vertical frame or stile of a door or window frame with its longitudinal direction facing up and down, a load acts in the first direction T1 due to the opening and closing of a sliding screen, air pressure in the indoor / outdoor direction, etc.

[0022] When a load acts in the T1 direction, the end 20a of the reinforcing member 20 abuts against the first plate portion 11 and the second plate portion 12 and is stretched in the T1 direction, thereby suppressing deformation of the profile 10, such as bending of the first plate portion 11 and the second plate portion 12.

[0023] When disposing the reinforcing member 20 inside the frame 10, it is only necessary to insert the reinforcing member 20 from its longitudinal end between the pair of first ribs 15a and the pair of second ribs 16a.

[0024] In the reinforcement structure 1 for an aluminum extrusion configured in this manner, when a load acts on the extrusion 10 in the T1 direction, the reinforcing member 20 braces itself in the T1 direction to resist the load. Because the reinforcing member 20 is disposed in the hollow of the extrusion 10, there is no need to increase the extrusion 10 itself, such as its wall thickness, and the size of the extrusion 10 can be kept small.

[0025] In the aluminum extrusion reinforcement structure 1, the reinforcing member 20 is formed of a material different from the aluminum material forming the extrusion 10, and there may be a difference in thermal expansion coefficient between the reinforcing member 20 and the extrusion 10. Because the reinforcing member 20 is not joined to the extrusion 10, deformation of either the reinforcing member 20 or the extrusion 10 due to temperature changes is prevented from affecting deformation of the other.

[0026] In the aluminum extrusion reinforcement structure 1, a pair of first ribs 15a and a pair of second ribs 16a that hold the reinforcement member 20 are provided in the hollow s1 of the extrusion 10. This suppresses rattles, displacement, and the like of the reinforcement member 20.

[0027] In the aluminum extrusion reinforcement structure 1, the reinforcement member 20 is held by a pair of first ribs 15a and a pair of second ribs 16a spaced apart in the T2 direction on the extrusion 10. This restricts movement of the reinforcement member 20 in the T2 direction.

[0028] Second Embodiment Next, a reinforcement structure for an aluminum extrusion according to a second embodiment will be described mainly with reference to Fig. 2. In the description of the embodiment shown below, the same members as those described above are given the same reference numerals, and the description thereof will be omitted.

[0029] As shown in Fig. 2, in the aluminum extrusion reinforcement structure 1A, the reinforcement member 20 is held by a pair of attachments (holding portions) 30. The attachments 30 are arranged in a hollow s1 of the extrusion 10. The attachments 30 are arranged on both sides of the reinforcement member 20 in the T2 direction. The pair of attachments 30 are arranged symmetrically about the center in the T2 direction.

[0030] The attachments 30 are short members, and a plurality of attachments 30 are arranged at intervals in the longitudinal direction of the section 10.

[0031] The attachment 30 has a substantially C-shape in a cross section perpendicular to the longitudinal direction. The attachment 30 has a holding wall portion 31 and a bent wall portion 32.

[0032] The retaining wall portion 31 is formed in a flat plate shape. The plate surface of the retaining wall portion 31 faces the T2 direction. The retaining wall portion 31 is arranged along the surface 20b of the reinforcing member 20 facing the T2 direction. One end portion 31a of the retaining wall portion 31 in the T2 direction does not reach the first plate portion 11. The other end portion 31a of the retaining wall portion 31 in the T2 direction does not reach the second plate portion 12.

[0033] The bent wall portion 32 extends from both end portions 31a in the T1 direction of the retaining wall portion 31 in a direction away from the surface 20b of the reinforcing member 20. The end portions 32a of the bent wall portion 32 abut against the third plate portion 13 and the fourth plate portion 14 or are arranged with a small gap therebetween.

[0034] The holding wall 31 is adhered to the reinforcing member 20 using a sponge-like double-sided tape 36. The holding wall 31 may also be adhered to the reinforcing member 20 using an adhesive or a non-sponge-like double-sided tape. The reinforcing member 20 is sandwiched between the attachments 30 on both sides in the T2 direction.

[0035] In the aluminum extrusion reinforcement structure 1A configured in this manner, when a load acts on the extrusion 10 in the T1 direction, the reinforcing member 20 braces itself in the T1 direction to resist the load. Because the reinforcing member 20 is disposed in the hollow of the extrusion 10, there is no need to increase the extrusion 10 itself, such as its wall thickness, and the size of the extrusion 10 can be kept small.

[0036] In the aluminum extrusion reinforcement structure 1A, the reinforcing member 20 is formed of a material different from the aluminum material forming the extrusion 10, and there may be a difference in thermal expansion coefficient between the reinforcing member 20 and the extrusion 10. Since the reinforcing member 20 is not joined to the extrusion 10, deformation of either the reinforcing member 20 or the extrusion 10 due to temperature changes is prevented from affecting deformation of the other.

[0037] In the aluminum extrusion reinforcement structure 1A, the reinforcement member 20 is sandwiched and held by attachments 30 on both sides in the T2 direction, thereby restricting movement of the reinforcement member 20 in the T2 direction. The attachments 30 can be separate members from the extrusion 10, so there is no need for a dedicated extrusion.

[0038] In the aluminum extrusion reinforcement structure 1A, the attachment 30 and the reinforcement member 20 are fixed with a sponge-like double-sided tape 36. As a result, vibrations generated in the extrusion 10 are absorbed by the sponge-like double-sided tape 36, thereby suppressing rattling noise.

[0039] (Third embodiment) Next, a reinforcement structure for an aluminum extrusion according to a third embodiment will be described mainly with reference to Fig. 3. As shown in Fig. 3, the reinforcement member 20B is arranged in the hollow s1 so as to be able to stand on its own. The reinforcement member 20B is formed in a substantially rectangular shape in a cross section perpendicular to the longitudinal direction of the extrusion 10. The reinforcement member 20B is arranged over substantially the entire length of the extrusion 10 in the longitudinal direction.

[0040] The reinforcing member 20B has a first reinforcing plate portion 21, a second reinforcing plate portion 22, a third reinforcing plate portion 23, and a fourth reinforcing plate portion 24.

[0041] The first reinforcing plate portion 21 and the second reinforcing plate portion 22 are formed in the shape of flat plates. The plate surfaces of the first reinforcing plate portion 21 and the second reinforcing plate portion 22 face in the T1 direction. The first reinforcing plate portion 21 and the second reinforcing plate portion 22 are arranged opposite each other in the T1 direction. The first reinforcing plate portion 21 is arranged in contact with the inner surface of the first plate portion 11 or with a small gap therebetween. The second reinforcing plate portion 22 is arranged in contact with the inner surface of the second plate portion 12 or with a small gap therebetween.

[0042] The third reinforcing plate portion 23 and the fourth reinforcing plate portion 24 connect an end portion of the first reinforcing plate portion 21 and an end portion of the second reinforcing plate portion 22. The third reinforcing plate portion 23 and the fourth reinforcing plate portion 24 are formed in a flat plate shape. The plate surfaces of the third reinforcing plate portion 23 and the fourth reinforcing plate portion 24 face in the T2 direction. The third reinforcing plate portion 23 is disposed in contact with the inner surface of the third plate portion 13 or with a small gap therebetween. The fourth reinforcing plate portion 24 is disposed in contact with the inner surface of the fourth reinforcing plate portion 24 or with a small gap therebetween.

[0043] When a load acts on the section 10 in the T1 direction and the T2 direction, the reinforcing member 20B is stretched in the T1 direction and the T2 direction to resist the load.

[0044] In the aluminum extrusion reinforcement structure 1B configured in this manner, when a load acts on the extrusion 10 in the T1 direction, the reinforcing member 20B braces itself in the T1 direction to resist the load. Because the reinforcing member 20B is disposed in the hollow of the extrusion 10, there is no need to increase the extrusion 10 itself, such as the wall thickness of the extrusion 10, and the size of the extrusion 10 can be kept small.

[0045] In the aluminum extrusion reinforcement structure 1B, the reinforcing member 20B is formed of a material different from the aluminum material forming the extrusion 10, and there may be a difference in thermal expansion coefficient between the reinforcing member 20B and the extrusion 10. Since the reinforcing member 20B is not joined to the extrusion 10, deformation of either the reinforcing member 20B or the extrusion 10 due to temperature changes is prevented from affecting deformation of the other.

[0046] In the aluminum extrusion reinforcement structure 1B, the reinforcement member 20B itself is hollow and can stand on its own. By placing the reinforcement member 20B in the hollow, the reinforcement member 20B reinforces the extrusion 10, resulting in a simple configuration.

[0047] The shapes and combinations of the components shown in the above-described embodiments are merely examples, and various modifications can be made based on design requirements, etc., within the scope of the present disclosure.

[0048] For example, in the first embodiment, when a load acts on the profile 10 in both the T1 and T2 directions, rails such as the first rail 15 may be provided on the third plate portion 13 and the fourth plate portion 14, so that the reinforcing member has a cross-shape when viewed in cross section perpendicular to the longitudinal direction.

[0049] In the third embodiment, the reinforcing member 20B does not have to be formed in a substantially rectangular shape in a cross section perpendicular to the longitudinal direction of the extruded member 10. For example, the reinforcing member 20B may be formed in a substantially H-shape in a cross section perpendicular to the longitudinal direction of the extruded member 10. The reinforcing member 20B may not have the third reinforcing plate portion 23 and the fourth reinforcing plate portion 24, but may have a wall portion connecting the middle of the first reinforcing plate portion 21 in the T2 direction and the middle of the second reinforcing plate portion 22 in the T2 direction. The reinforcing member 20B may be formed in a substantially triangular shape in a cross section perpendicular to the longitudinal direction of the extruded member 10. One side of the triangle may abut against either the first plate portion 11 or the second plate portion 12, and the vertex opposite to the side of the triangle may abut against the other of the first plate portion 11 and the second plate portion 12. [Explanation of symbols]

[0050] 1, 1A, 1B...Reinforced structure of aluminum extrusions 10...Shaped material 15a...First rib (retaining portion) 16a...Second rib (retaining portion) 20, 20B...Reinforcing member 30...Attachment (holding part) 36...Double-sided tape s1...Hollow T1 direction…first direction T2 direction…Second direction

Claims

1. A hollowed-out profile formed from an aluminum material; a reinforcing member disposed in the hollow without being joined to the profile and formed of a material different from the aluminum material; The reinforcing member is arranged to tension the aluminum extrusion in a first direction in which a load acts on the extrusion.

2. 2. The aluminum extrusion reinforcement structure according to claim 1, wherein a holding portion for holding the reinforcing member is provided in the hollow.

3. The retaining portion is a pair of ribs provided on the profile at an interval in a second direction perpendicular to the first direction, The aluminum extrusion reinforcement structure according to claim 2, wherein the reinforcing member is held by the pair of ribs.

4. The aluminum extrusion reinforcement structure according to claim 2, wherein the retaining portion is an attachment provided on both sides of the reinforcement member in a second direction perpendicular to the first direction so as to sandwich the reinforcement member.

5. 5. The aluminum extrusion reinforcement structure according to claim 4, wherein the attachment and the reinforcement member are fixed together with a double-sided sponge tape.

6. The aluminum extrusion reinforcement structure according to claim 1 , wherein the reinforcing member is self-supporting in the hollow.

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