Modular curved surface space structures

• US 3,925,941 A
• Filed: 05/13/1974
• Issued: 12/16/1975
• Est. Priority Date: 01/10/1972
• Status: Expired due to Term

• Current Assignee: Peter J. Pearce
• Original Assignee: Peter J. Pearce
• Inventors: Pearce, Peter J.
• Primary Examiner(s): Purser, Ernest R.
• Assistant Examiner(s): Raduazo, Henry
• Application Number:
  US05/469,415
• Time in Patent Office: 582 Days
• Field of Search: 52/80,81,82,86
• US Class Current: 52/82
• CPC Class Codes: A63B 2208/12 specially adapted for children
• CPC Class Codes: A63B 9/00 Climbing poles, frames, or stages climbing walls for mountaineering training A63B69/0048; endless loop ladders A63B22/04
• CPC Class Codes: A63H 33/04 Building blocks, strips, or similar building parts
• CPC Class Codes: E04B 1/32 Arched structures; Vaulted structures; Folded structures E04B1/345 takes precedence; vaulted roofs E04B7/08
• CPC Class Codes: E04B 1/34815 Elements not integrated in a skeleton
• CPC Class Codes: E04B 2001/0053 Buildings characterised by their shape or layout grid
• CPC Class Codes: E04B 2001/3223 Theorical polygonal geometry therefor
• CPC Class Codes: E04B 2001/3276 Panel connection details
• CPC Class Codes: E04B 2001/3288 Panel frame details, e.g. flanges of steel sheet panels
• CPC Class Codes: E04B 2001/3294 with a faceted surface

Abstract

A plurality of mathematically interrelated modular structures are disclosed which are based on a series of minimal surfaces bounded by skewed polygons. Some six basic modules are described which are capable of being interconnected in various combinations to form finite volume enclosing structures. Appropriately scaled, the modules could be used as structure toys, to create playground equipment or, for the construction of habitible structures. Utilizing these structural modules, it is possible to construct large assemblies having parallel planar structures within the enclosed space which could be considered floors and ceilings of multilevel structures.

Claims

1. A saddle-like polygonal surface module for defining, in conjunction with other, related modules, space enclosing structures, the module comprising:

a nonplanar, skew polygonal periphery, having straight edges and a plurality of linear strut members extending from each junction of said straight edges at the periphery forming a fully triangulated interior framework to define a saddle-like structural module, said polygonal periphery having six edges, one pair of opposing edges and an included edge defining a first plane, a second pair of opposing edges and an included edge defining a second plane;

the interior angles of the edges defining said first and second planes being 120*, said first and second planes intersecting at a dihedral angle of 125* 16'"'"''"'"', the edges at said intersection of planes joining at 90*.

2. A saddle-like polygonal surface module for defining, in conjunction with other, related modules, space enclosing structures, the module comprising:

a nonplanar, skew polygonal periphery, having straight edges and a plurality of planar surface members extending from said straight edges at the periphery forming a fully triangulated interior surface to define a saddle-like structural module, said polygonal periphery having six edges, one pair of opposing edges and an included edge defining a first plane, a second pair of opposing edges and an included edge defining a second plane;

the interior angles of the edges defining said first and second planes being 120*, said first and second planes intersecting at a dihedral angle of 125* 16'"'"''"'"', the edges at said intersection of planes joining at 90*.

3. A saddle-like polygonal surface module for defining, in conjunction with other, related modules, space enclosing structures, the module comprising:

a nonplanar, skew polygonal periphery, having straight edges and a plurality of linear strut members extending from each junction of said straight edges at the periphery forming a fully triangulated interior framework to define a saddle-like structural module, said polygonal periphery having eight edges and the interior angles of the vertices each being substantially 120*, one pair of opposing edges defining a base plane, a second pair of opposing edges, together with an included edge, defining a second plane and a third pair of opposing edges, together with an included edge defining a third plane, said second and third planes intersecting said base plane at dihedral angles of substantially 125* 16'"'"''"'"'.

4. A saddle-like polygonal surface module for defining, in conjunction with other, related modules, space enclosing structures, the module comprising:

a nonplanar, skew polygonal periphery, having straight edges and a plurality of planar surface members extending from said straight edges at the periphery forming a fully triangulated interior surface to define a saddle-like structural module, said polygonal periphery having eight edges and the interior angles of the vertices each being substantially 120*, one pair of opposing edges defining a base plane, a second pair of opposing edges, together with an included edge, defining a second plane and a third pair of opposing edges, together with an included edge defining a third plane, said second and third planes intersecting said base plane at dihedral angles of substantially 125* 16'"'"''"'"'.

5. A saddle-like polygonal surface module for defining, in conjunction with other, related modules, space enclosing structures, the module comprising:

a nonplanar, skew polygonal periphery, having straight edges and a plurality of linear strut members extending from each junction of said straight edges at the periphery forming a fully triangulated interior framework to define a saddle-like structural module, said polygonal periphery having six edges, a first pair of opposing edges being joined by an included third, coplanar edge at angles of substantially 120* to define a first plane and a second pair of edges being joined by an included sixth coplanar edge at angles of substantially 135* to define a second plane, said first and second planes intersecting at a dihedral angle of substantially 125* 16'"'"''"'"', said first and second pair of opposing edges being joined at 90* substantially at the intersection of said planes.

6. A saddle-like polygonal surface module for defining, in conjunction with other, related modules, space enclosing structures, the module comprising:

a nonplanar, skew polygonal periphery, having straight edges and a plurality of planar surface members extending from said straight edges at the periphery forming a fully triangulated interior surface to define a saddle-like structural module, said polygonal periphery having six edges, a first pair of opposing edges being joined by an included third, coplanar edge at angles of substantially 120* to define a first plane and a second pair of edges being joined by an included sixth coplanar edge at angles of substantially 135* to define a second plane, said first and second planes intersecting at a dihedral angle of substantially 125* 16'"'"''"'"', said first and second pair of opposing edges being joined at substantially 90* at the intersection of said planes.

7. A saddle-like polygonal surface module for defining, in conjunction with other, related modules, space enclosing structures, the module comprising:

a nonplanar, skew polygonal periphery, having straight edges and a plurality of linear strut members extending from each junction of said straight edges at the periphery forming a fully triangulated interior framework to define a saddle-like structural module, said polygonal periphery having five straight edges, four of the edges intersecting at substantially 90* angles, and the fifth edge joining adjacent edges at substantially 120*, said fifth edge and the two edges adjacent thereto defining a first plane, the remaining two edges defining a second plane, said first and second planes intersecting at a dihedral angle of substantially 125* 16'"'"''"'"', the edges at said intersection of said first and second planes joining at substantially 90* angles.

8. A saddle-like polygonal surface module for definiNg, in conjunction with other, related modules, space enclosing structures, the module comprising:

a nonplanar, skew polygonal periphery, having straight edges and a plurality of planar surface members extending from said straight edges at the periphery forming a fully triangulated interior surface to define a saddle-like structural module, said polygonal periphery having five straight edges, four of the edges intersecting at substantially 90* angles, and the fifth edge joining adjacent edges at substantially 120*, said fifth edge and the two edges adjacent thereto defining a first plane, the remaining two edges defining a second plane, said first and second planes intersecting at a dihedral angle of substantially 125* 16'"'"''"'"', the edges at said intersection of said first and second planes joining at substantially 90* angles.

9. A saddle-like polygonal surface module for defining, in conjunction with other, related modules, space enclosing structures, the module comprising:

a nonplanar, skew polygonal periphery, having straight edges and a plurality of linear strut members extending from each junction of said straight edges at the periphery forming a fully triangulated interior framework to define a saddle-like structural module, said polygonal periphery having 12 edges, four pairs of said edges intersecting at four points to define a first, base plane, each adjacent pair of said points also defining the intersection of said first plane with second, third, fourth and fifth planes at dihedral angles of substantially 125* 16'"'"''"'"', said second, third, fourth and fifth planes each being defined by a pair of opposing edges and an included edge, each included edge joining adjacent coplanar edges at 120* and the edges intersecting at said points joining at 90*.

10. A saddle-like polygonal surface module for defining, in conjunction with other, related modules, space enclosing structures, the module comprising:

a nonplanar, skew polygonal periphery, having straight edges and a plurality of planar surface members extending from said straight edges at the periphery forming a fully triangulated interior surface to define a saddle-like structural module, said polygonal periphery having 12 edges, four pairs of said edges intersecting at four points to define a first, base plane, each adjacent pair of said points also defining the intersection of said first plane with second, third, fourth and fifth planes at dihedral angles of substantially 125* 16'"'"''"'"', said second, third, fourth and fifth planes each being defined by a pair of opposing edges and an included edge, each included edge joining adjacent coplanar edges at 120* and the edges intersecting at said points joining at 90*.

11. A saddle-like polygonal surface module for defining, in conjunction with other, related modules, space enclosing structures, the module comprising:

a nonplanar, skew polygonal periphery, having straight edges and a plurality of linear strut members extending from each junction of said straight edges at the periphery forming a fully triangulated interior framework to define a saddle-like structural module, said polygonal periphery having 12 straight edges, one pair of opposing edges together with an included edge defining a first plane, a second pair of opposing edges together with an included edge defining a second plane, a third pair of opposing edges together with an included edge defining a third plane, the three remaining, non-intersecting edges defining a base plane, said first, second and third planes, intersecting said base plane, the edges of said pairs being respectively connected to said non-intersecting edges at the intersection of said planes.

12. The module of claim 11, above, wherein the interior angle of the vertices are each substantially 120*, and the dihedral angles of said intersecting planes are substantially 109* 28'"'"''"'"'.

13. The module of claim 11, above, wherein the interior angles of the vertices are each substantially 135*, and the dihedral angles of said intersecting planes are substantially 125*16'"'"''"'"'.

14. A saddle-like polygonal surface module for defining, in conjunction with other, related modules, space enclosing structures, the module comprising:

a nonplanar, skew polygonal periphery, having straight edges and a plurality of planar surface members extending from said straight edges at the periphery forming a fully triangulated interior surface to define a saddle-like structural module, said polygonal periphery having 12 straight edges, one pair of opposing edges together with an included edge defining a first plane, a second pair of opposing edges together with an included edge defining a second plane, a third pair of opposing edges together with an included edge defining a third plane, the three remaining, non-intersecting edges defining a base plane, said first, second and third planes, intersecting said base plane, the edges of said pairs being respectively connected to said non-intersecting edges at the intersection of said planes.

15. The module of claim 14, above, wherein the interior angle of the vertices are each substantially 120*, and the dihedral angles of said intersecting planes are substantially 109* 28'"'"''"'"'.

16. The module of claim 14, above, wherein the interior angles of the vertices are each substantially 135*, and the dihedral angles of said intersecting planes are substantially 125* 16'"'"''"'"'.