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Iso-truss structure

a technology of iso-truss and structural components, applied in the direction of joists, building components, pillars, etc., can solve the problems of difficult three-dimensional analysis and limited traditional structural design, and achieve the effect of reducing weight and improving performance characteristics

Inactive Publication Date: 2005-06-02
ISOTRUSS IND LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] It has been recognized that it would be advantageous to develop a structural member with enhanced performance characteristics, such as strength reduced weight, etc.
[0019] In accordance with another aspect of the present invention, the structure may taper. The segments of each helical component may sequentially reduce in length along the axes such that the structural member tapers. Thus, the tapering structure may form more complex shapes than a singular, linear structure, and may be better suited for certain applications.

Problems solved by technology

Traditional structural designs have been limited to one or two-dimensional analyses resisting a single load type.
Three-dimensional analysis is difficult because of the difficulty in conceptualizing and calculating three-dimensional loads and structures.

Method used

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Examples

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Embodiment Construction

[0140] For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the exemplary embodiments illustrated in the drawings, and specific language will be used to describe the same. It will nevertheless be understood that no limitation of the scope of the invention is thereby intended. Any alterations and further modifications of the inventive features illustrated herein, and any additional applications of the principles of the invention as illustrated herein, which would occur to one skilled in the relevant art and having possession of this disclosure, are to be considered within the scope of the invention.

Improved Iso-Truss Structure

[0141] Some basic features of an iso-truss structure are described in U.S. Pat. No. 5,921,048, issued Jul. 13, 1999, which is herein incorporated by reference. As illustrated in FIGS. 1-5, an improved iso-truss structure, indicated generally at 10, in accordance with the present invention is shown. T...

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Abstract

An iso-truss structure (10) includes at least two helical components (30, 32) and at least one reverse helical component (34) attached thereto with opposing angular orientations. Each helical and reverse helical component preferably includes at least four elongate, straight segments (22) rigidly connected end to end in a helical configuration forming a single, substantially complete rotation about a common axis (14) forming a first square cross section. The structure may further include at least two rotated helical components (80, 92) and at least one rotated reverse helical component (98) which are rotated with respect to the helical and reverse helical components forming a second square cross section, rotated with respect to the first. The structure may be straight, curved, flexible, or form angles.

Description

BACKGROUND OF THE INVENTION [0001] 1. The Field of the Invention [0002] The present invention relates generally to a three-dimensional structural member which is strong and light-weight. More particularly, the present invention relates to a structural member having a plurality of helical components wrapped about an axis, each having straight segments connected end-to-end in a helical configuration. [0003] 2. The Background Art [0004] The pursuit of structurally efficient structures in the civil, mechanical, aerospace and sports arenas is an ongoing quest. An efficient truss structure is one that has a high strength to weight ratio and / or a high stiffness to weight ratio. An efficient truss structure can also be described as one that is relatively inexpensive, easy to fabricate and assemble, and does not waste material. [0005] Trusses are typically stationary, fully constrained structures designed to support loads. They consist of straight members connected at joints at the end of ea...

Claims

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Application Information

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IPC IPC(8): A45F3/04B62K19/02E01D6/00B62K19/16B64G1/64B64G99/00E01D4/00E01F9/011E04C3/04E04C3/08E04C3/28E04C3/29E04C3/36E04C3/38E04H12/02E04H12/10F16S3/08
CPCA45F3/04E04H12/10B29C53/824B62K19/02B62K19/16B64G1/64B64G9/00E01F9/011E01F9/0113E04C3/08E04C3/28E04C3/36E04C3/38E04C2003/0486E04C2003/0495E04H12/02B29C53/587E01F9/623E01F9/696B64G99/00E04C3/02
Inventor JENSEN, DAVID W.FRANCOM, LARRY R.
Owner ISOTRUSS IND LLC
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