JP3280827B2 - Spiral structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spiral structure.

[0002]

2. Description of the Related Art In fibers of biological tissues such as bones, tendons, blood vessels, etc. in living organisms, a large number of collagen filaments having a spiral structure having elasticity are formed in each mountain. And the valley are assembled side by side.

[0003] This biological tissue is characterized in that it has high toughness because it receives an external force that acts on it while dispersing it by the spiral slopes of the collagen fibers that associate sideways. Further, a biological tissue is characterized in that when some collagen fibers are damaged, the damaged collagen fibers are replaced with new ones by a metabolic function to maintain the tissue.

[0004] The present invention obtains high toughness as well as biological tissue using a large number of spirals which are artificial collagen fibers constituting the above-mentioned biological tissue, and is used permanently by partial replacement. It is to provide a spiral structure that can be used.

It is another object of the present invention to provide a helical structure which can be easily assembled and disassembled into a desired shape.

[0006]

[Means for Solving the Problems] Therefore, claim 1
A wire having a predetermined diameter is formed with a predetermined lead and pitch so that the spiral diameter is about twice the wire diameter, the peaks and the valleys are opposed to each other, and the valleys are located outside the center of the spiral. It is characterized in that a large number of spirally wound spiral bodies are assembled and fixed in a state where mutual valleys and peaks are laterally associated.

A second aspect of the present invention is to form a plurality of spiral bodies having a predetermined lead and a spiral groove having a predetermined pitch on the outer peripheral surface of the shaft material, the ridges and the valleys being substantially opposed to each other. It is characterized in that the group and the mountain are gathered and fixed in a state where they meet sideways.

[0008]

An embodiment of the present invention will be described below with reference to the drawings.

Claim 1 FIG. 1 is a schematic perspective view schematically showing a spiral structure.

FIG. 2 is a schematic perspective view schematically showing a spiral body.

FIG. 3 is an enlarged plan view showing the spiral state of the spiral body.

FIG. 4 is a plan view showing a state in which the spiral body is laterally associated.

FIG. 5 is a schematic plan view showing another side association state.

FIG. 6 is a schematic plan view showing another side association state.

FIG. 7 is a schematic plan view showing another side association state.

A large number of spirals 3 constituting the spiral structure 1
As shown in FIGS. 2 and 3, a wire made of metal, synthetic resin, ceramics (including glass), concrete, cellulose, natural fiber such as leather, carbon fiber, or the like is used. Crest 3a and valley 3b with double spiral diameter
Are formed so as to be substantially opposed to each other, and each of the valleys is spirally wound with a predetermined lead and a pitch which is substantially coincident with the center of the spiral diameter or located outside. As a result, each spiral 3
Is spirally wound so that the space at the center of the spiral diameter is discontinuous in the axial direction. Although the spiral body 3 shown in FIG. 2 has a right-handed spiral winding direction, it may be a left-handed spiral.

As shown in FIGS. 1 and 4, the plurality of spiral bodies 3 spirally formed as described above have their axes substantially parallel to each other, and their peaks 3a and valleys 3b are laterally associated with each other. After being assembled into a desired shape, a part or almost the whole is fixed with metal band 5 by binding or tagging,
A coil spring is wound around the outer peripheral surface and fixed by tightening by the elastic force to form the spiral structure 1. The shape of the spiral structure 1 may be any of a columnar shape, a prismatic shape, a hollow cylindrical shape (including a cylinder and a rectangular tube), a plate shape, a sheet shape, and the like. Further, as a fixing means of the plurality of spiral bodies 3, a metal plate which is bent so as to substantially match the cross-sectional shape of the spiral structure 1 may be fixed by bolts or welding.

Further, the side association state of each spiral 3 is as follows.
As shown in FIG. 4, the spiral winding direction in each spiral body 3 is
For example, a state in which the peaks 3a and the valleys 3b are laterally associated with each other and aligned in one of the clockwise direction and the counterclockwise direction, or a spiral winding direction in each spiral body 3 as shown in FIG. Facing each other in opposite directions
a and the valleys 3b are laterally associated and assembled, and as shown in FIG. 6, a plurality of spirals 3 having the same spiral winding direction are laterally associated to form a large number of spirals 7; A state in which the spiral group 7 is oriented such that the spiral winding directions thereof are opposite to each other, and the peaks 7a and the valleys 7b are laterally associated and assembled, or the spiral winding directions match as shown in FIG. The spiral body 3 ′ having the spiral winding direction opposite to the spiral body 3 ′ having a large number of laterally related spiral bodies 3 ′ may be mixed in a predetermined ratio and laterally associated.

In the spiral structure 1 formed as described above, the acting external force is received while being dispersed by the spiral slopes of the peaks 3a and the valleys 3b of the spiral bodies 3 which are associated sideways. Therefore, it has high toughness. Further, since the ridges 3a and the valleys 3b of the helical structure 3 that constitute the helical structure 1 are laterally associated with each other, the helical structure 3 itself cannot be pulled out straight and has a predetermined shape for a long time. Can be kept. As a result, the spiral structure 1 achieves high toughness over a long period of time while reducing the size and weight.

On the other hand, when a part of the spiral 3 in the spiral structure 1 is damaged or corroded due to aging, the damaged spiral 3 is replaced with a new spiral 3 and the spiral structure 3 is replaced. The spiral structure 1 can be used permanently while maintaining the initial function of the spiral structure 1. That is, in order to replace the damaged spiral 3, the spiral 3 cannot be pulled out straight out as described above, but can be easily removed from the spiral structure 1 by rotating the damaged spiral 3 as shown in FIG. 8. Can be pulled out. Then, while rotating the new spiral 3 in the direction opposite to the above, the valleys 3 b and the valleys 3 a are brought into contact with the valleys 3 b of the other spirals 3 in the space of the spiral structure 1 from which the damaged spiral 3 is taken out. It can be exchanged by making a side meeting with the peak 3a. As described above, the spiral body 3 in the spiral structure 1 can be easily partially replaced, the initial function can be maintained, and the life can be made permanent.

Further, a plurality of spiral structures 1 formed as described above can be combined with each other to easily assemble into a structure having a desired shape, and disassembly can be easily performed.

Claim 2 FIG. 9 is a plan view showing a spiral structure.

FIG. 10 is a schematic perspective view of a spiral body.

A plurality of spiral bodies 33 constituting the spiral structure 31 according to the second aspect have a predetermined shape in which a peak 33a and a valley 33b are substantially opposed to the outer peripheral surface of a shaft made of metal or synthetic resin. A spiral groove 33c having a lead and a pitch is formed. In the spiral body 33, the valley portion is located outside the axis, similarly to the spiral body 3 according to the first aspect.

Each spiral body 33 made of the above-mentioned shaft member
The spiral structure 3 is formed by assembling and fixing the peaks 33a and the valleys 33b in a predetermined shape while associating the ridges 33a and the valleys 33b with each other.
1 is formed. The spiral body 33 of the spiral structure 31
In the same manner as in the above-described spiral structure 3 of the spiral structure 1, the spiral winding directions are matched, the mutual spiral winding directions are opposite, or the spiral winding directions of the plurality of spiral bodies 33 are matched. Then, a spiral group is formed by lateral association, and the spiral winding directions of the spiral group are opposite to each other. The spiral body 33 having the spiral winding direction facing the opposite direction may be mixed at a predetermined ratio, and the spiral bodies 33 may be in a state where the spiral bodies 33 are laterally associated with each other.

The helical structure 31 has high toughness similarly to the helical structure 1 described above, and when the helical structure 31 is partially damaged, it is removed by rotating the damaged helical body 33. Later, the new spiral body 33 is replaced while rotating, and the life of the spiral structure 1 can be made permanent while maintaining the initial function.

In order to form the long spiral structures 1 and 31 by using the spirals 3 and 33 having a short axial direction, each spiral 3 and 33 is formed to have a length of about 1/2 in the axial direction. What is necessary is just to make a side-to-side association in a staggered manner and to collectively fix.

That is, FIG. 11 (FIG. 11 shows a state in which the spirals 3 made of a wire are laterally associated in a staggered manner, but the same applies to the spirals 33 made of a shaft. As shown in (1), a number of spirals 3 are laterally associated with each other while being shifted by a predetermined length in the axial direction, and assembled into a desired shape to form a long spiral structure 1. Can be formed. Although FIG. 11 shows a state in which the spirals 3 are shifted from each other by に 対 し て with respect to the axial direction, the present invention is not limited to this. When the elongated spiral structure 31 is formed by using the spiral body 33 composed of the axis, the spiral body 33 is provided with an engaging projection on one end surface and an engaged concave portion on the other end surface. 33 may be connected in the axial direction.

In the case where the spiral structure 1 and the spiral structure 31 are formed in a sheet shape, FIG. 12 (FIG. 12 shows a spiral structure using the spiral 3, but the spiral 3
The same applies to the spiral structure using No. 3 and the illustration is omitted. As shown in ()), a plurality of sheet-shaped spiral structures 41 formed in a sheet shape are stacked in a relationship in which their axial directions are orthogonal to each other and assembled into a predetermined shape, thereby having further toughness and deformation. Helical structure 43 that is strong against In FIG. 12, the sheet-like spiral structure 41 is formed by a number of spirals 3 having the same spiral winding direction, but the spirals 3 in each sheet-like spiral structure 41 are formed.
May have different spiral winding directions.

[0030]

According to the present invention, therefore, it is possible to obtain high toughness by using a large number of spirals which are artificial of collagen fibers constituting a biological tissue, to facilitate replacement work, and to extend the life. it can.

Also, the present invention can be easily assembled and disassembled into a desired structure.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view schematically showing a spiral structure.

FIG. 2 is a schematic perspective view schematically showing a spiral body.

FIG. 3 is an enlarged plan view showing a spiral state of a spiral body.

FIG. 4 is a plan view showing a side association state of the spiral.

FIG. 5 is a schematic plan view showing another side association state.

FIG. 6 is a schematic plan view showing another side association state.

FIG. 7 is a schematic plan view showing another side association state.

FIG. 8 is a perspective view showing a replacement state of a spiral body.

FIG. 9 is a plan view showing a spiral structure.

FIG. 10 is a schematic perspective view of a spiral body.

FIG. 11 is a schematic plan view showing a modified embodiment.

FIG. 12 is an exploded perspective view showing a modified embodiment.

[Explanation of symbols]

 1.31, helical structure 3.33 helical body

Claims (8)

(57) [Claims] 1. A wire having a predetermined diameter is formed such that the spiral diameter is about twice the wire diameter, the ridges and the valleys face each other, and the valleys are located outside the center of the spiral. A spiral structure wherein a large number of spiral bodies spirally wound with the leads and pitches are assembled and fixed in a state where mutual valleys and peaks are laterally associated with each other. 2. A plurality of spiral bodies each having a predetermined lead and a spiral groove having a predetermined pitch on the outer peripheral surface of a shaft material, in which peaks and valleys are substantially opposed to each other. A helical structure, wherein the helical structure is assembled and fixed in a laterally associated state. 3. The spiral structure according to claim 1, wherein said spiral body is made of a metal material. 4. The spiral structure according to claim 1, wherein said spiral body is made of a synthetic resin material. 5. The helical structure according to claim 1, wherein the helical bodies are laterally associated with the helical winding directions aligned. 6. The helical structure according to claim 1, wherein the helical bodies are laterally associated with each other in a state in which the helical winding directions are alternately changed. 7. A plurality of spiral bodies formed by laterally associating a plurality of spiral bodies having the same spiral winding direction are arranged side by side so that their spiral winding directions are opposite to each other. 1 or 2 spiral structures. 8. A helical structure according to claim 1, wherein a plurality of helical bodies which are laterally associated with the helical winding directions coincide with each other at a predetermined ratio. .