JP2002070168A - Skeleton with linearly connected tensile member and its application - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skeleton having a strong nimble feeling and a queer feeling and the skeleton, a building, and a tent simple to construct and move. SOLUTION: Both ends of each of a plurality of pressure members are connected to a linear tensile member, and a shape is maintained by the tensile stress of the tensile member and the compressive stress of the pressure members.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Technical Field to which the Invention pertains] This invention is written by Mario Salvadori, co-translated by Shige Mochizuki and Tetsuo Kitajima.
(Kashima Publishing Co., Ltd.) and related to the improvement and application of tensegrity.

[0002]

2. Description of the Related Art A conventional tensegrity is composed of a plurality of rope-shaped tension members and a plurality of straight rod-shaped compression members which are three-dimensionally and intricately combined. The sense of lightness and strangeness in architectural frame members such as beams is extremely poor. In addition, conventional stable frames, buildings, and tents for buildings are composed of various materials and parts, both large and small.
Construction and relocation are usually complex.

[0003]

SUMMARY OF THE INVENTION It is desired to provide a framework for objects and monuments which is simpler and more light and strange and has a strong sense of lightness and strangeness than conventional tensegrity, and architectural framework members such as columns and beams which are strong and light and strange. In addition, there are few types of materials and parts, and it is easy to manage, build, and relocate.
I want to provide a tent.

[0004]

In order to solve the above-mentioned problems, the tension member of tensegrity is only a tension member that is continuous in a line withstanding the tension, and withstands the compression corresponding to the compression member. Combine the ends of each of a plurality of pressure members of various shapes, put the tension members in a tension state that forms a straight line over the entire length, and put all the pressure members in a compression state,
Construct and utilize the internal stability framework. At the time of joining the ends of each of the plurality of pressure members to the above-described tension member, the entire length of the tension member is bent upward so that both ends of the tension member are fixed ends or pin bearings, and the tension member is pulled over the entire length. In this state, a stable framework is formed in which all the pressure members are in a compressed state. Further, a simple construction / tent is constituted by a plurality of the above-mentioned stable frames using a plurality of straight lines on one cloth-like sheet in place of the upwardly projecting tension member.

[0005]

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tension member made of a material that can withstand tension, such as a wire rope, a metal wire, a chain, a spring, a rope, a rubber string, and the like. The present invention relates to a skeleton formed by connecting both ends of a plurality of pressure members made of a material that can withstand bending and compression, such as wood and hard plastic.

In the above connection, the connecting pins of the tension members at all ends of the pressure members other than the outer member ends of the pressure members connected to both ends of the tension members connected in a straight line are connected to both of the adjacent pressure members. It is configured to be located inside the material end.

[0007] The above-mentioned frame is connected so that the tension member is in a tension state in which the tension member forms a straight line over the entire length, and all the pressure members are in a compression state. If the tension member is bent, the tension member expands and the tensile stress is reduced. The pressure member is an internal stable frame that has resistance due to contraction and increased compressive stress, and has a restoring force to a fixed posture in which the tension member forms a straight line.

A stable framework is constructed by externally and stably supporting the above-mentioned internal stable framework. For example, by using one end of the internal stable frame as a fixed end, an object monument with a strong sense of lightness and strangeness that maintains a fixed posture withstanding a load including its own weight is formed. In addition, this internal stable frame is used as architectural frame members such as columns and beams to give the building a sense of lightness and strangeness.

[0009] The above-mentioned internal stable frame using either a tension member having a low tensile rigidity or a pressure member having a low compression / bending rigidity is bent, and the straight line tension member is bent upward to protrude so that the internal stress is reduced. And a stable frame having a restoring force to a fixed posture in which the tension material is upwardly convex with the minimum elastic energy is formed by using both ends of the entire length as fixed ends or pin bearings.

[0010] When connecting both ends of a plurality of pressure members to a continuous tension member using a tension member having a high tensile rigidity and a pressure member having a high compression / bending rigidity, a tension is applied to each connecting pin. The material is bent upwards, all tension members are stretched over the entire length, all pressure members are compressed, and both ends of the full length are fixed ends or pin bearings, and tension with minimum elastic energy is applied. Construct a stable frame that has a restoring force to the fixed posture of the material convex.

[0011] When constructing a plurality of stable frames having a convex upper surface of the tension member by any of the methods described above, a plurality of straight lines on a cloth-like sheet such as for one tent are used instead of the tension member. Buildings and tents that can be easily constructed and relocated.

[0012]

Embodiments will be described with reference to the drawings.
FIG. 1 shows an arc pressure member (2) 7 shown in FIG.
The two material ends (6) are joined, the tension member (1) is bent upwardly convex over the entire length to be in a tension state, all the arc-shaped pressure members (2) are in a compression state, and the tension member (6) It is a stable framework with both ends fixed (7). The number, type and size of the pressure members, the distance between the ends (6) of the connecting pins, the shape of the upwardly bent portion of the tensile member, and the support type at both ends of the entire length are configured differently from those shown in the figure as necessary. .

FIG. 2 shows the tension member (1) in a tension state in which the tension member (1) forms a straight line over the entire length, all the arc-shaped pressure members (2) are in a compression state, and one end of the entire length is a fixed end (7). ). This skeleton is self-supporting in the posture shown in the figure, and constitutes an object monument or architectural pillar with a strong sense of lightness and strangeness. This frame can be changed to the shape shown in FIG. 1 when one of the fixed ends (7) of the frame of FIG. 1 is changed to a free end and the tension member is sufficiently contracted.

Although various shapes can be used as the pressure member, FIGS. 3, 4, 5 and 6 show typical pressure members in practical use. FIG. 3 shows an arc-shaped pressure member (2) having an arc shape. This is used in the framework of FIGS. 1, 2 and 10.

FIG. 4 shows a rod-shaped pressure member (3) having a linear shape.
It is. This is used in the framework of FIG.

FIG. 5 shows an annular pressure member (4) having an annular shape. This is used in the framework of FIGS.

FIG. 6 shows a rectangular annular pressure member (5) having the shape of a rectangular ring. This is to alternately position the bar-shaped pressure member (3) in the frame of FIG. 9 to avoid mutual interference, and in FIGS. 7 and 8, the annular pressure member (4).
It can be used instead of

FIG. 7 is an elevational view of the internal stable frame using the annular pressure member (4) of FIG. 5 to make the tension member (1) into a tension state that is linear over its entire length. FIG. 8 is a plan view thereof. This frame is a material of an object or monument with a strong sense of lightness or strangeness, or an architectural frame member such as a column or a beam with a strong sense of lightness or strangeness.

FIG. 9 shows an example in which seven arc-shaped pressure members (2) of the skeleton shown in FIG. 1 are replaced with three bar-shaped pressure members (3) and two rectangular annular pressure members (5). 6) A stable frame in which the pins are connected to each other and used as connecting pins with the tension member (1), and the fixed end (7) at one end of the entire length is replaced with a pin bearing (8).

FIG. 10 shows a plurality of straight frames on one cloth-like sheet (9) in place of the tension member (1) in a plurality of stable frames which are very similar to the frame shown in FIG. (10)
It is a building and tent constructed using.

[0021]

The present invention is embodied in the form described above, and has the following effects.

When the internal stable frame according to the present invention is used for an object or monument, it is difficult to immediately understand why the posture is maintained at a glance, and its lightness and strangeness are different from those of the conventional tensegrity. There is something better than. Further, architectural frame members such as columns and beams using the internal stable frame have the same lightness and strange feeling as described above.

When the upwardly-stable frame of the tension member according to the present invention is used as a frame for a building or tent, the number of types of materials and parts is smaller than that of a conventional frame, and the size of the material can be reduced. It is simple to build and easy to manage.

By using a plurality of straight lines on a cloth-like sheet for one tent or the like in place of the tension member in the plurality of stable frames described above, a construction / tent that can be extremely easily and easily constructed and relocated. Is provided.

[Brief description of the drawings]

FIG. 1 is an elevation view of a stable skeleton in which a tensile member is upwardly convex using an arc-shaped pressure member.

FIG. 2 is an elevational view of a tension member straight stabilizing skeleton using an arcuate pressure member.

FIG. 3 is an elevational view of an arcuate pressure member.

FIG. 4 is an elevation view of a rod-shaped pressure member.

FIG. 5 is an elevational view of an annular pressure member.

FIG. 6 is an elevational view of a rectangular annular pressure member.

FIG. 7 is an elevation view of an internally stable skeleton using an annular pressure member.

FIG. 8 is a plan view of the internal stable skeleton of FIG. 7;

FIG. 9 is an elevation view of a stable skeleton using alternately bar-shaped pressure members and rectangular annular pressure members.

FIG. 10 is a perspective view of a building / tent using a plurality of straight lines on one cloth-like sheet as tension members.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tensile material 2 Arc pressure material 3 Bar pressure material 4 Annular pressure material 5 Rectangular annular pressure material 6 Pressure material end 7 Fixed end 8 Pin bearing 9 Cloth sheet 10 Straight line on cloth sheet

Claims (3)

[Claims] A plurality of pressure members (2, 3, 4, 5) of various shapes and a plurality of both ends (6) are connected to a tension member (1) connected in a line.
And an inner stable frame in which the tension member (1) is in a tension state in which the tension member is linear over the entire length, and all the pressure members (2, 3, 4, 5) are in a compression state. 2. A plurality of pressure members (2, 3, 4, 5) having various shapes and a plurality of both ends (6) are connected to a tension member (1) connected in a line.
And the entire length of the tension member (1) is bent upward and convex, and both ends of the entire length are fixed ends or pin bearings, and the tension member (1)
In tension over the entire length of all pressure members (2, 3,
Stable frame with 4 and 5) compressed 3. A plurality of straight lines (1) on a single cloth-like sheet (9), wherein the tension members (1) connected in a line are defined.
3. A building / tent comprising a plurality of stable frames according to claim 2 instead of 0)