JPS62299555A - High strength knitted structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention (Field of Industrial Application) This invention relates to a high-strength woven structure, and its purpose is to provide a strength reinforcing core for tires, tire chains, carbon fiber reinforced plastic bodies, etc. The purpose of the present invention is to provide a high-strength woven structure that can be effectively used as a material.

(Prior art and its problems) Conventionally, a tire chain (1) generally known as a type of mesh structure, especially a rubber tire chain (1), has a structure as shown in FIGS. 8 to 9. There is.

For example, in the example of the tire chain (1) shown in FIG. (2C
) are arranged in parallel and circular around the outer periphery, and the mutually adjacent filament bodies (2c) are finished at required locations with binding members (3) so that the appearance looks like a mesh structure.

In general, it is said that it is preferable for such tire chains (1) etc. to be in a mesh state.The reason for this is that ordinary metal chains can effectively prevent tires from slipping in the forward and backward directions. This is because sliding in the lateral direction with respect to the forward and backward directions of the vehicle cannot be effectively prevented, and therefore, if the mesh is in place, sliding in both directions is prevented.

On the other hand, the rubber tire chain shown in Figs. 8 and 9 (
As shown in 1), in recent years, metal chains are not preferred because the thread wheels of cars are made of aluminum, as they can scratch or damage the aluminum foil, and rubber tire chains are now being used (1). There is also a tendency for this to be desired.

However, although rubber is generally highly elastic and can prevent damage to aluminum foil, etc., it is weak against tensile force and shearing force, so rubber tire chains (1) as shown in Figures 8 and 9 are Be sure to use a core material (2
) was commonly used.

However, since the mesh state shown in FIG. 8 uses the connecting member (3), the strength of this connecting point is particularly weak, and during use, the connecting member (3) is turned into pillars and concentrated stress is applied. Easy to damage.

Therefore, there is a drawback that the tire may slip due to the damaged joint.

In other words, it is not desirable from the viewpoint of strength to have a connecting portion using such a connecting member (3) as the mesh tire chain (11).

In addition, a rubber tire chain t in a mesh state as shown in FIG.
In l), the core material (2) is similarly woven and formed into a flat plate shape,
It is formed by covering the outer periphery of a core material (2) with rubber.

However, since this core material (2) is made by crossing so-called vertical fibers and horizontal fibers, and binding the core materials (2) at the intersection points with each other by means such as welding, the structure is similar to that of this binding. The tire chain (11), which is formed into a flat plate, is stretched around the outer periphery of the tire (4), and its starting part (1a) and ending part (1b) are connected with different members (IC). Therefore, it was undeniable that the strength of this joint would be particularly weak.

Although not shown in the drawings, in recent years there have been golf clubs and tennis rackets made of carbon fiber-reinforced plastics called so-called black shafts that use carbon fibers.

Such carbon fiber reinforced plastics are usually made by weaving carbon fibers like cloth, winding the woven flat carbon fibers into a cylinder, impregnating the cylinder with liquid plastic and hardening it to form it. This is what happens.

Therefore, since the core cloth of such carbon fiber reinforced plastics, glass fiber reinforced plastics, etc. is a woven fabric, the vertical fibers and the horizontal fibers are not strongly bonded, and moreover, the cloth is constructed into a cylindrical body. Since the cylindrical body is formed by winding the outer cloth and joining both ends of the cloth, there is also a drawback that the strength of the joint is weak.

In general, when fiber bundles or raw yarns are knotted, the knot strength decreases, and even when they are bent, the strength decreases, and normally this strength decrease is 30% to 40%, so-called strong use. The rate will decrease.

This strength utilization rate refers to the ratio of strength that a processed fiber product maintains based on the strength of a single fiber.

Therefore, there is no conventional fiber bundle or fiber core material (2) that has been made into a cylindrical core material without being bent, woven, assembled, knotted, glued, or twisted. Until now, there has been no material with a high strength utilization rate.

(Means for Solving the Problems) In light of the drawbacks of the prior art, the present invention is a hollow braided structure that eliminates the reduction in knot strength, bending strength, and joint strength, thereby increasing the strength utilization rate. It is an object of the present invention to provide a high-strength woven structure that can be used as a reinforcing core material for glass fiber-reinforced plastics, carbon fiber-reinforced plastics, metal fiber-reinforced plastics, and rubber bodies.

(Solution of the Invention) In light of the above-mentioned circumstances, the inventors conducted intensive research and found that in order to avoid a decrease in the strength of the fiber bundle, they first used a fiber bundle of a certain length and We developed a structure that can be made into a bundle, hollow cylindrical shape, and can also be made into a braided structure, leading to the creation of this invention.

That is, the present invention is a woven structure that is woven along the outer peripheral surface of a hollow cylindrical body whose upper and lower surfaces are open,
The unit braided structure of this structure uses fiber bundles made of continuous synthetic or natural organic or inorganic fibers of a certain length, and corresponds to each other at a constant pitch along the upper and lower open circumferences of the hollow cylinder. In the locking part formed in the position,
The fiber bundle is stretched diagonally along the outer circumferential surface from the initial locking part on either the upper or lower open circumference side to the locking part on the opposite open circumference side that has been moved by a certain pinch, and is reversed at this locking part. Then, on the opposite open circumference side, the fiber bundle is bridged in an oblique direction along the outer circumferential surface to a locking portion that has been further moved by a fixed distance, and this bridge continues until the fiber bundle is covered with all the locking portions on the upper and lower open circumferences. The starting end and the terminal end of the continuous fiber bundle are made to match at the same locking part, and this unit knitting structure is performed at least once to form a high-strength knitted structure in the form of a cylinder. be.

(Structure of the Invention) Figures 1 (A), (B), (C), and (D) show external views of the braided structure according to the present invention, and Figure 2 shows the steps taken when preparing the braided structure. An external view of the hollow cylindrical body used is shown, and FIGS. 3(^), (B), and (C) show an example of the method for manufacturing a braided structure according to the present invention, and FIGS. FIG. 7 is an explanatory diagram of the state in which the braided structure according to one embodiment of the present invention is used.

First, in FIG. 1, (6) shows a unit knitted structure which has a hollow cylindrical shape and whose starting end and ending end coincide at the same position as in the prior art.

(6a) in FIG. 1(B) shows bonding with adhesive or the like, and the intersections of the unit braided structure are bonded as necessary.

FIGS. 1C and 1D are enlarged views of the intersection of a high-strength knitted structure obtained by repeating this unit knitted structure three times.

FIG. 2 shows a hollow cylinder (7) used in preparing the high-strength knitted structure of the present invention.
7) has its upper and lower surfaces (8) and (9) open, and in addition, the lower open surface has a circumference α [, (11) at a constant interval (
In d), a locking portion (12) is provided.

As the fiber bundle (13) made of synthetic or natural organic or inorganic fiber used in this invention, all currently existing fiber bundles such as carbon fiber, synthetic fiber, glass fiber, cotton, and other metal fibers can be effectively used. Can be used.

In order to manufacture the high-strength knitted structure according to the present invention using this fiber bundle (13), FIGS. 3(A) and (B)
, (C), first, the initial locking part of (11) of the open circumference a of either the upper or lower side of the hollow cylindrical body (7), FIG.
In A), the initial locking part (12) of the lower open circumference (12)
Start the starting end (13a) of the fiber bundle (13) from a).

From this position, the third
In the illustrated embodiment, the fiber bundle (
13) and bridge it diagonally upward.

The fiber bundle (13) is reversed at the position of this locking part (12b), and then the locking part (not shown in FIG. 3(A)) is moved by the same four locking parts of the lower open circumference (11). The fiber bundle (13) is placed over the fiber bundle (13).

In this way, the fiber bundle (13) is continuously strung, and the upper and lower open circumference QOI is created. bundle(
The starting end (13a) and the terminal end (13b) of 13) are matched at the same locking part (12a) to form a unit braided structure, and this structure is made at least once and then the cylindrical body (7
) can be removed to obtain a high-strength woven structure according to the present invention.

This high-strength braided structure (6) is shown in FIGS. 4 and 5, for example.
As shown in the figure, by applying four rubber coatings (14) around the outer periphery of the fiber bundles (13) of the high-strength braided structure (6), a tire chain (15) can be obtained.

As shown in Fig. 5, this tire chain (15) can be made into a complete net shape when coated on the outer periphery of the running surface (17) of the tire (16), and the core material (2) can reduce the binding strength. Since there are no factors that cause a decrease in bending strength or adhesive bonding strength, it is possible to obtain a tire chain with extremely high strength.

Further, as shown in FIG. 6, this braided structure (6) is constructed with fiber bundles (13) made of glass fibers or carbon fibers to obtain a cylindrical body, and the cylindrical body is coated with a plastic resin impregnated coating. Then, it can be used as a so-called carbon shaft (18) of a golf club.

In addition, if the braided structure (6) is made to have a continuous length in the height direction of the hollow cylindrical body as shown in Fig. 7, the entire body will be formed into a racket shape (19), and a plastic resin will be impregnated as the core material of this racket shape. By adhering it, an extremely strong racket frame can be prepared.

(Effects of the Invention) As detailed above, the high-strength lace-up structure according to the present invention is a lace-up structure that is laced along the outer peripheral surface of a hollow cylindrical body whose top and bottom surfaces are open, and the lace-up structure has a constant Using continuous fiber bundles made of synthetic or natural organic or inorganic fibers, locking parts are formed at corresponding positions at a constant pitch along the upper and lower open circumferences of the hollow cylinder. The fiber bundle is stretched diagonally along the outer circumferential surface from the initial locking part on either the upper or lower open circumference side to the locking part moved at a fixed pitch on the opposing open circumference side, and then reversed at this locking part. Then, on the opposite open circumference side, the fiber bundle is bridged in an oblique direction along the outer circumferential surface to a locking portion that has been further moved by a fixed distance, and this bridge continues until the fiber bundle is covered with all the locking portions on the upper and lower open circumferences. This is a high-strength braided structure in which the continuous fiber bundles are strung together, and the starting and ending ends of these continuous fiber bundles meet at the same locking part and the cylindrical body is removed. Compared to a core material made of a structural body, the strength of the core material itself can be made into a woven structure with extremely strong strength without a decrease in so-called knot strength, bending strength, or joint strength. Glass fiber reinforced plastics, carbon fiber reinforced plastics, metal fiber reinforced plastics such as tires, tire chains or club shafts, as well as racket frames, etc.
It has the effect that it can be effectively used as a core material for products such as tsuku.

[Brief explanation of the drawing]

Fig. 1 is an explanatory view of the appearance of a high-strength woven structure according to the present invention, Fig. 2 is an explanatory view of the appearance of a hollow cylindrical body used in manufacturing the high-strength woven structure used in this invention, and Fig. 3 (A), (B), and (C) are explanatory diagrams showing the manufacturing state of the high-strength woven structure according to the present invention, and FIGS. 4 to 7 are explanatory diagrams showing the usage state of the high-strength woven structure according to the present invention. 8 and 9 are explanatory diagrams of conventional examples. (61-m-High strength braided structure (71-Hollow cylindrical body (7a)-・Outer circumferential surface (8)・-Top open surface (9)
)---Bottom open surface QO)-Top open circumference (11)
-m - Lower open circumference (12) - Locking part (13) - m
= Textile East I, "'l"F':' 7ゝh Patent Attorney 1 Yoshihiro Kiyohara: l'? 1
iFigure 4Figure 5Figure 6Figure 7

Claims (1)

[Claims] (1) A braided structure that is knitted along the outer circumferential surface of a hollow cylindrical body whose top and bottom surfaces are open, and the unit braided structure of this structure is made of continuous synthetic or natural organic or inorganic fibers of a certain length. Using a fiber bundle consisting of the upper and lower open circumferences of the hollow cylindrical body, the fiber bundles are attached to the locking portions formed at corresponding positions at a constant pitch along the upper and lower open circumferences of the hollow cylindrical body. It is bridged diagonally along the outer circumferential surface from the locking part to the locking part that has moved a fixed pitch on the opposing open circumferential side, and is reversed at this locking part and further moved by a fixed distance on the opposing open circumferential side. The fiber bundle is strung diagonally along the outer circumferential surface of the locking portion, and the fiber bundle is strung continuously over the entire locking portion of the upper and lower open circumference, and the starting and ending ends of the continuous fiber bundle are strung across the locking portion along the outer peripheral surface. A high-strength braided structure in which the parts are matched at the same locking part, this unit braided structure is performed at least once and the cylindrical body is removed.