JPH10299730A - Structural material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lighten by structural material substituted for reinforcement material made of steel and also provide strong structural material for a twist force. SOLUTION: In long structural material 10 formed by bundling plural pipes 20, 20..., a pipe cap 30 for maintaining such state that the pipes 20, 20,... are bundled is provided on the end of the axial direction of the structure material 10 and pipes 20, 20,... are formed rotatably around the respective axial directions under the state in which pipes 20, 20,... to being bundled the pipe cap 30. A long string shape member is allowed to pass inside the pipes 20, 20,... to reinforce tensile strength.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a structural material, in particular,
An object of the present invention is to provide a structural material that can be used as a reinforcing material for vehicles such as automobiles.

[0002]

2. Description of the Related Art Conventionally, steel has been used as a member for reinforcing vehicles such as automobiles. For example, put a steel rod-shaped member inside the door to form a side beam,
Alternatively, the body is reinforced around the cabin.

[0003]

However, when a steel bar is inserted into the door, the door becomes heavy, requiring strength in the door support portion, or troublesome in opening and closing the door. There was a problem. Further, when steel is frequently used in automobiles, there is a problem that the weight of the vehicle body itself becomes heavy. Further, in the case of a steel member, a rib structure is provided or the thickness of a steel plate is changed as a countermeasure against the twisting force. However, little measures have been taken to prevent or reduce the torsional force.

Accordingly, the first and second aspects of the present invention provide a structural material which replaces a reinforcing material made of steel, and provides a structural material which is light in weight and resistant to torsion. is there. Another object of the present invention is to provide a structural material capable of enhancing tensile strength.

[0005]

SUMMARY OF THE INVENTION The present invention is to achieve the above object. (Claim 1) A long structural material (10) formed by bundling a plurality of pipes (20, 20, ...), and an end of the structural material (10) in the axial direction is provided with a pipe. (20, 20, ...) is provided with a pipe cap (30, 30) for maintaining the bundled state, and each pipe (20, 20, ...) is attached to the pipe cap (30, 30). When the pipes (20, 20,...) Are bundled, each is formed so as to be rotatable around each axial direction.

Here, "to be formed so as to be rotatable around each axial direction" means, for example, a pipe cap (30,
30) through holes for passing pipes (20,20, ...)
(31, 31, ...), and at the end of the pipe (20, 20, ...), through the through hole (31, 31, ...), the pipe (20, 20, ...).
・) The retaining function part (21, 21,
...). Therefore, fixing the pipes (20, 20,...) To the pipe caps (30, 30) by welding does not correspond to “forming each rotatable around the axial direction”.

The operation of the first aspect of the present invention will be described. A twisting force is applied to the pipe cap (30, 30). Then
Each pipe (20, 20, ...) against pipe cap (30, 30)
・ ・) Rotates each pipe (20,20, ・)
The force that rotates in the opposite direction to one end and the other end of. As a result, the pipe caps (30, 30) and the respective pipes (20, 20,...) Are less likely to be damaged. (Claim 2) The invention according to claim 2 is a pipe (20, 20,...)
・ ・) Is a structural material (50) provided with a plurality of pipe aggregates (40, 40,...) Formed by bundling
0, 40, ...) at the end in the axial direction of the pipe (20, 20, ...
・) Pipe caps (30, 3) to keep bundled
0, ...), and each pipe (20,20, ...) has a pipe (20,20, ...) in its pipe cap (30,30, ...).
・), In a bundled state, each is formed so as to be rotatable around each axial direction, and the pipe assembly (40, 40,...)
Is characterized in that adjacent pipe caps (30) and pipe caps (30) are integrated by fixing them.

The operation of the second aspect of the present invention will be described. A torsion force is applied to the pipe assembly (40, 40, ...). Then, pipes (20, 20, ...) with respect to the pipe cap (30)
Is rotated, it becomes difficult to apply a force for rotating the pipes (20, 20,...) In opposite directions to one end and the other end. As a result, the pipe cap (30, 30, ...) and the pipe
(20, 20,...) Are less likely to be damaged. In addition, the plurality of pipe aggregates (40, 40,...)
・ ・ ・)
) Can be bundled without hindering rotation of the pipe assembly (40, 40, ...) around the axial direction. Further, by changing the number of pipe aggregates (40, 40,...) To be bundled, it is possible to form a structural material (50) capable of coping with desired strength and thickness. (Claim 3) Inside each pipe (20, 20,...)
The structural material according to claim 1 or 2, wherein the structural material (10, 50) is passed through a long cord-like member (23, 23, ...) for enhancing the tensile strength. is there.

Here, the term "string member" includes not only a member formed of natural fibers but also a member formed of synthetic fibers. According to the third aspect of the present invention, it is possible to provide a structural material having enhanced tensile strength.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to embodiments and drawings. The drawings used here are FIG. 1, FIG. 2, and FIG. FIG. 1 is a perspective view showing an embodiment of the present invention, and is a structural material formed by fixing a plurality of pipe aggregates formed by bundling pipes. FIG. 2 is an assembled sectional view showing one embodiment of the present invention, and shows a state in which a pipe is fixed to a pipe cap. FIG. 3 is an assembled sectional view showing an embodiment of the present invention, showing variations of structural materials. (Pipe aggregate) The structural material 50 of FIG. 1 is formed by bundling a plurality of pipe aggregates 40, 40. The pipe aggregate 40
Are formed by bundling a plurality of pipes 20, 20,. At the axial end of the pipe assembly 40, there are provided pipe caps 30, 30 for keeping the pipes 20, 20,... Bundled. As shown in FIG. 2, the pipe caps 30, 30 have through holes 31, 31,... For penetrating the respective pipes 20, 20,. At one end of each pipe 20, 20,..., Pipes 20, 20,.
It is provided with a retaining function unit 21 for preventing the device from falling off. The retaining function part 21 is formed as a circular plate-shaped member having a diameter larger than the diameter of the through hole 31. Also, near one end of each of the pipes 20, 20,..., A positioning function section 2 for regulating the movement of the pipe caps 30, 30 is provided.
It has 2,22. The positioning function parts 22, 22 are formed in a projecting shape. Then, the pipe caps 30, 30 are positioned between the positioning function units 22, 22, and the retaining function units 21, 21, respectively. Thereby, the movement of the pipe caps 30, 30 is restricted, and the pipe caps 30, 30 are prevented from shifting toward the center of the pipe 20. In this embodiment, the outer shape of the pipes 20, 20,... Is set to 10 mm, and ten pipes 20, 20,. However, the thickness of pipes 20, 20, ... and the number of
May be changed according to the 50 applications. (Structural material) The structural material 50 of FIG.
Are provided. Each pipe aggregate 40,4
0, ... are adjacent pipe caps 30 and pipe caps
30 and integrated by fixing. At the time of fixing, a thin iron plate 41 is passed over the adjacent pipe caps 30 and 30 and fixed using fastening means such as bolts. (Operation) A torsional force is applied to the structural material 50. Then, by rotating the pipes 20, 20, ... with respect to the pipe caps 30, 30, ..., the pipes 20, 20, ... rotate in opposite directions with respect to one end and the other end. It is difficult to apply force. As a result, pipe caps 30, 30, ... and pipes 20, 20, ...
・ ・ Becomes less likely to be damaged. Also, multiple pipe aggregates
40, 40, ..., by fixing and bundling the pipe caps 30, 30, ..., without hindering the rotation of the pipe portions 20, 20, ... about the axial direction, .. Can be bundled. Further, by changing the number of the pipe aggregates 40, 40,... To be bundled, it is possible to form the structural material 50 capable of coping with the desired strength and thickness. Also, depending on how the pipe assembly 40 is fixed,
A flexible structural member 50 can be provided.

In this embodiment, pipes 20, 20,.
Is formed of steel, but may be formed by using a synthetic resin. Thus, the weight of the structural material 50 can be reduced. When the pipes 20, 20,... Are formed of synthetic resin, each pipe 20, 20,... Is passed through the through hole 31, 31,. Melt the ends of pipes 20,20, ...
The ends of the pipes 20, 20,... May be formed larger than the diameters of 31, 31,. The pipe sections 20, 20,... May be formed of different materials, for example, a steel pipe 20 and a synthetic resin pipe 20. Further, although the pipe caps 30, 30 are made of steel in the present embodiment, they can be replaced by reinforced plastics or the like.

When the structural member 50 according to the present embodiment is used as a frame, a side beam, or the like of an automobile, it may be possible to reduce the weight while improving the strength of the vehicle body. (Variation) The structural material 50 in FIG.
Pass the cord members 23, 23,. Specifically, the retaining function portions 21, 21, ... formed as circular plate members are provided with holes for penetrating the string members 23, 23, .... Then, the string-like members 23, 23,... Passing through the respective pipes 20, 20,.
Pass through the holes of 1, ... A knot is formed at the tip of each of the string members 23, 23,... So that the fiber members 23, 23,. By the string members 23, 23,...
The tensile strength of the structural material 50 can be increased. Although not shown, the retaining caps 21, 21,... And the string-like member 2 are provided on the side of the pipe cap 30, 30,.
An outer cap may be provided to prevent the appearance of 3, 23,... In addition, in the embodiment of FIG. 3, one string-shaped member is provided for each of the pipes 20, 20,.
23 passes, but multiple passes may be made.

[0013]

According to the first and second aspects of the present invention, it is possible to provide a structural material which can replace a steel reinforcing material.
According to the third aspect of the present invention, a structural material capable of enhancing the tensile strength can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an assembled sectional view showing an embodiment of the present invention.

FIG. 3 is an assembled sectional view showing an embodiment of the present invention.

[Explanation of symbols]

10 Structural material 20 Pipe 21 Retaining function part 22 Positioning function part 23 String member 30 Pipe cap 31 Through hole 40 Pipe aggregate 41 Iron plate 50 Structural material

Claims (3)

[Claims] 1. A long structural material formed by bundling a plurality of pipes, wherein each of the structural materials has a pipe cap at an axial end thereof for maintaining a bundle of pipes. Wherein the pipes are formed so as to be rotatable around respective axial directions in a state where the pipes are bundled in a pipe cap. 2. A structural material comprising a plurality of pipe aggregates formed by bundling pipes, wherein a pipe cap for maintaining a bundle of pipes is provided at an axial end of each pipe aggregate. Each pipe is formed so as to be rotatable about each axial direction in a state where the pipes are bundled in the pipe cap, and the pipe assembly fixes the adjacent pipe cap and pipe cap Structural material characterized by being integrated by doing. 3. The structural material according to claim 1, wherein a long cord-like member for enhancing the tensile strength of the structural material is passed through each pipe.