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Pultruded I-bar with clip fittings enabling automated grating panel assembly

Imported: 24 Feb '17 | Published: 06 Jan '04

Joseph E. Sumerak

USPTO - Utility Patents

Abstract

A structural system is comprised of two components. The first component is an I-shaped bearing member having an upper flange and a lower flange connected by a web. The upper and lower flanges have undercuts formed therein. The second component is a connection member having a notch in each corner for engaging the undercuts in the upper and lower flanges. The components of this system may be used to construct a structural component comprising a plurality of I-shaped bearing members positioned parallel to one another. A plurality of connection members interconnect the bearing members; the two upper notches of the connection member engage the undercuts in the upper flanges of two adjacent bearing members while the two lower notches engage the undercuts in the lower flanges of two adjacent bearing members. A method of constructing a structural component is comprised of positioning a plurality of bearing members parallel to one another. A plurality of connection members having cam surfaces are inserted between adjacent bearing members. Each connection member is rotated to first bring the cam surface into contact with the adjacent bearing members and then to lock the connection member in place.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

For the present invention to be easily understood and readily practiced, the present invention will now be described, for purposes of illustration and not limitation, in conjunction with the following figures, wherein:

FIG. 1 is a perspective view of a bearing member constructed according to the present invention;

FIGS. 2A and 2B illustrate one type of connection member constructed according to the present invention;

FIGS. 3A-3D illustrate a connection member at four different positions during an assembly process;

FIG. 4 illustrates two adjacent bearing members of the type shown in FIG. 1 interconnected by a connection member of the type shown in FIG. 2;

FIG. 5 illustrates a structural component comprised of a plurality of parallel spaced bearing members interconnected by a plurality of uniformly spaced connection members;

FIG. 6 is an end view of the structural component of FIG. 5 taken in the direction of the arrow shown in FIG. 5;

FIG. 7A illustrates how two structural components of the type shown in FIG. 5 may be connected together while FIG. 7B illustrates two prior art structural components;

FIG. 8 illustrates a section of a structural component comprised of a plurality of parallel spaced bearing members interconnected by a plurality of non-uniformly spaced connection members;

FIG. 9A illustrates a structural component with connection members spaced to provide local support while FIG. 9B illustrates the result of forming an opening in a prior art structural component;

FIG. 10 illustrates two pultruded bearing members having a grit applied to a top surface thereof and a molded connection member having a texture molded into the top surface;

FIGS. 11 and 12 illustrate a plurality of bearing members interconnected by connection members of various configurations;

FIGS. 13A,

13B and

13C are a top view, front view, and side view, respectively, of a prior art system; and

FIGS. 14 and 15 illustrate two of the components of the prior art system of FIG.

13A.

Claims

1. A structural system, comprising:

2. The structural system of claim 1 wherein said upper flange of said I-shaped members has an upper surface defining a top surface, and wherein each of said plurality of connection members has an upper surface which, when said connection member is connected between two adjacent I-shaped members, is flush with said top surface of at least one of said two adjacent I-shaped members.

3. The structural system of claim 2 wherein certain of said plurality of connection members have a recess formed in a side thereof.

4. The structural system of claim 1 wherein certain of said plurality of connection members have a projection extending from a side thereof.

5. A structural component constructed of reinforced resin members, comprising:

6. The structural component of claim 5 wherein said upper flange of said I-shaped members has an upper surface defining a top surface, and wherein each of said plurality of connection members has an upper surface which, when said connection member is connected between two adjacent I-shaped members, is flush with said top surface of at least one of said two adjacent I-shaped members.

7. The structural component of claim 6 wherein certain of said plurality of connection members have a recess formed in a side thereof.

8. The structural component of claim 6 wherein said structural component is a floor grating and said upper surface of said bearing members has a grit applied thereto.

9. The structural component of claim 5 wherein said bearing members are pultruded and said connection members are one of molded, pultruded, extruded or stamped.

10. The structural component of claim 5 wherein certain of said connection members are positioned to provide local support around fabricated areas.

11. The structural component of claim 5 additionally comprising an adhesive applied to said connection members at least on certain of the surfaces contacting said bearing members.

12. The structural component of claim 5 wherein certain of said plurality of connection members have a projection extending from a side thereof.

13. A combination, comprising:

14. The combination of claim 13 wherein said upper flanges of said first and second pluralities of I-shaped members have an upper surface defining a top surface, and wherein each of said first, second and third pluralities of connection members has an upper surface which, when said connection member is connected between two adjacent I-shaped members, is flush with said top surface of at least one of said two adjacent I-shaped members.

15. The combination of claim 14 wherein certain of said plurality of connection members have a recess formed in a side thereof.

16. The combination of claim 14 wherein said combination is a floor grating and said upper surface of said bearing members has a grit applied thereto.

17. The combination of claim 13 wherein certain of said first and second pluralities of connection members are positioned to provide local support around fabricated areas.

18. The combination of claim 13 additionally comprising an adhesive applied to said connection members at least on certain of the surfaces contacting said bearing members.

19. The combination of claim 13 wherein certain of said plurality of connection members have a projection extending from a side thereof.

20. A method of constructing a structural component, comprising:

21. The method of claim 20 additionally comprising applying an adhesive to said connection members at least on certain of the surfaces contacting said bearing members.

22. The method of claim 20 wherein said connection members are uniformly positioned.

23. The method of claim 20 wherein said connection members are positioned to provide local support.