JPH077342Y2 - Reinforced hollow fabric for FRP - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a reinforced hollow fabric for FRP used as a resin-reinforced core material such as a plastic ski core plate and a plastic board.

[Problems to be solved by conventional techniques and devices]

Conventionally, a reinforcing core for FRP uses a resin reinforced fiber woven fabric or a laminate thereof.

Therefore, in the case of forming a thick plate material, since the resin-reinforced fiber laminated body in which the woven cloth is laminated in multiple layers is used, the amount of resin-reinforced fibers increases, and the cost increases accordingly.

There is a demand for a woven fabric having a small amount of resin-reinforcing fibers and a high plate thickness.

The present invention provides a reinforced hollow woven fabric for FRP which solves the above drawbacks by arranging a number of tunnel-shaped hollow portions in parallel.

[Means for Solving the Problems]

 The gist of the present invention will be described with reference to the accompanying drawings.

Fiber woven fabric for resin reinforcement, upper warp 1H and upper weft 2H
Upper woven fabric H with textures, and lower warp 1L and lower weft
2L and a lower woven fabric L which is textured, an intermediate woven fabric M in which an intermediate warp 1M and an intermediate weft 2M are textured, and the warp 1M is made into an upper weft 2H of an upper woven fabric H and a lower part of a lower woven fabric L. The upper and lower woven fabrics H of the intermediate woven fabric M are arranged by arranging the upper and lower knitting positions with the weft 2L so that the intermediate woven fabric M is arranged in a zigzag pattern.
And the connecting and locking position of the lower woven fabric L, the inclination angle, and the upper woven fabric H
The hollow hollow fabric for FRP is characterized in that the hollowness is adjusted by selecting an interval between the lower woven fabric L and the lower woven fabric L, and the intermediate woven fabric M is curved to be deformed into a curved meandering intermediate woven fabric M. It is related to.

In addition, between the upper woven fabric H which is a resin reinforced fiber woven fabric in which the upper warp 1H and the upper weft 2H are textured, and the lower woven fabric L in which the lower warp 1L and the lower weft 2L are textured Intermediate warp
The intermediate woven fabric M in which 1M and the intermediate weft 2M are textured
1M for upper weft 2H of upper woven fabric H, upper weft 2H and lower woven fabric L
The intermediate woven fabric M is cross-arranged in an X shape by shifting the upper and lower binding positions to the lower weft 2L of the woven fabric, and the intermediate woven fabric M is bound to the upper woven fabric H and the lower woven fabric L. The hollowness is adjusted by selecting the locking position, the inclination angle, and the interval between the upper woven fabric H and the lower woven fabric L, and the intermediate woven fabric M is curved to be transformed into a curved cross-meandering intermediate woven fabric M. The present invention relates to a reinforced hollow woven fabric for FRP, which is characterized by being caulked.

In addition, between the upper woven fabric H which is a resin reinforced fiber woven fabric in which the upper warp 1H and the upper weft 2H are textured, and the lower woven fabric L in which the lower warp 1L and the lower weft 2L are textured Intermediate warp
The intermediate woven fabric M in which 1M and the intermediate weft 2M are textured
The intermediate woven fabric M is arranged in a curved meandering shape or a curved crossing meandering shape by arranging 1M with the weft 2H of the upper woven fabric H and the lower weft 2L of the lower woven fabric L by shifting the upper and lower connecting positions. The hollowness is adjusted by selecting the connecting / locking position of the intermediate woven fabric M to the upper woven fabric H and the lower woven fabric L, the inclination angle, and the interval between the upper woven fabric H and the lower woven fabric L to adjust the hollowness. Auxiliary warp on cloth H
The auxiliary woven fabric S in which 1S and the auxiliary weft 2S are textured is characterized in that the auxiliary warp 1S is organized into the upper weft 2H and the auxiliary woven fabric S is attached on the upper woven fabric H in a curved meandering state. The present invention relates to a reinforced hollow woven fabric for FRP.

Further, a fiber woven fabric for resin reinforcement, wherein a cross-woven warp 1Q and a cross weft 2Q of a meandering woven fabric Q are added to a base woven fabric P in which warp yarns 1P and weft yarns 2P are organized. 2P and the meandering curved portion Q ′ of the meandering woven cloth Q with respect to the substrate woven cloth P
Characterized in that the upper and lower parts are alternately arranged in a protruding state.
The present invention relates to a reinforced hollow woven fabric for FRP.

[Action]

With the hollow part 3 held, impregnate it with the reinforced resin
Form FRP hollow core material.

Even if this hollow core material is a thick plate material, an upper woven fabric H and a lower woven fabric L are arranged on the upper and lower surfaces thereof, and a meandering or X-shaped intermediate is provided between the upper woven fabric H and the lower woven fabric L. Since the woven cloth M is provided, the resin reinforcing fibers are arranged in a well-balanced manner on the plate material, and the resin reinforcing fiber is also a hollow core material in which the upper, middle and lower parts are integrated so that the strength of the FRP plate material can be improved accordingly. Therefore, if the hollow part 3 is attached to the upper part of the upper woven fabric H, the strength is further improved.

Further, the meandering curved portion Q ′ of the meandering woven cloth Q with respect to the substrate woven cloth P
It is easy to bend the whole into a circular arc shape by projecting the upper and lower alternately.

〔Example〕

FIG. 1 shows a case where the product of the present invention shown in FIG. 2 is used as a reinforcing core for a plate-shaped core material in an FRP ski, and FIGS. 3 and 4 show FIG. Similarly, plate-like core materials having respective cross-sectional shapes can be obtained, but their perspective views are omitted.

The weaving method uses multiple warp beams to maintain the length of the ski's plate-shaped core material with a dobby machine, and also to stop the winding motion intermittently for knotting, so that the looseness of the warp yarn at this time is prevented. Absorbed by multiple roll tensions, second, third, fourth
A triple-woven fabric as shown is woven. In the case of FIG. 4,
At least four or more warp beams are used, and at the same time as the operation of the dobby air, the intermittent winding motion is stopped and the tension control of a plurality of beams is performed to form a two-stage hollow structure to create a thickness.

Further, when forming the tunnel-shaped hollow portion 3 in FIG. 1, a rod-shaped core die having a predetermined cross-sectional shape may be inserted and placed in the hollow portion 3 and then pulled out after the resin is cured, in order to make the shape as designed.

The impregnating resin may be selected according to the purpose of use, and various methods such as a method of blending a thermosetting resin with a curing material that cures at room temperature or a method of curing by infrared heating may be applied.

Alternatively, the cloth may be put on the deformed film after weaving, and the impregnating resin may be poured and applied from above to be immediately molded.

Further, FIGS. 5 and 6 each show a type that can be cured in a desired curved state. For example, when it is used as a cylindrical spacer, the hollow portion 3 also performs an air cooling function.

[Effect of device]

Since the present invention is configured as described above, it is an economical FR that uses less resin reinforced fiber as a reinforcing core for a thick FRP plate material.
It becomes a reinforced hollow fabric for P, and its hollowness is also adjusted by selecting the connecting and locking position of the intermediate woven fabric to the upper woven fabric and the lower woven fabric, the inclination angle, and the interval between the upper woven fabric and the lower woven fabric. Since it is obtained, it exhibits excellent practicality as a reinforcing core that can be used for plate materials of any thickness.

[Brief description of drawings]

The drawing shows one embodiment of the present invention. Fig. 1 is a perspective view when the product is used as a ski core plate, and Figs.
5 is a side view of another example, and FIG. 6 is an enlarged weaving structure diagram of FIG. 1H… upper warp, 1L… lower warp, 1M… intermediate warp, 1S… auxiliary warp, 2H… upper weft, 1P… warp, 1Q… cross warp, 2L… lower weft, 2M… intermediate weft, 2P… weft, 2Q… Cross weft, H ...
Upper woven fabric, L ... lower woven fabric, M ... intermediate woven fabric, S ... auxiliary woven fabric, P substrate woven fabric, Q ... meandering woven fabric, Q '... meandering curved portion.

Claims (4)

[Scope of utility model registration request] 1. A fiber woven fabric for resin reinforcement, comprising upper warp 1H
Upper woven fabric H, in which the upper and lower wefts 2H are textured, and the lower warp
An intermediate woven fabric M in which an intermediate warp 1M and an intermediate weft 2M are textured between a lower woven fabric L in which 1L and a lower weft 2L are textured is used. The intermediate woven fabric M is arranged in a zigzag pattern by arranging the upper and lower binding positions of the cloth L and the lower weft 2L so that the intermediate woven fabric M is arranged in a zigzag pattern.
The hollowness is adjusted by selecting the connecting and locking position of the upper woven cloth H and the lower woven cloth L, the inclination angle, and the interval between the upper woven cloth H and the lower woven cloth L, and the intermediate woven cloth M and the curved surface are curved. A reinforced hollow woven fabric for FRP, characterized by being transformed into a curved and meandering intermediate woven fabric M by doing so. 2. A resin reinforced fiber woven fabric, comprising upper warp 1H
Upper woven fabric H, in which the upper and lower wefts 2H are textured, and the lower warp
An intermediate woven fabric M in which an intermediate warp 1M and an intermediate weft 2M are textured between a lower woven fabric L in which 1L and a lower weft 2L are textured is used. The intermediate woven fabric M is cross-arranged in an X-shape by shifting the upper and lower binding positions of the cloth L and the lower wefts 2L so that the upper woven fabric H and the lower woven fabric L are joined to each other. The hollowness is adjusted by selecting the joining / locking position, the inclination angle, and the interval between the upper woven fabric H and the lower woven fabric L, and by bending the intermediate woven fabric M, the curved intermediate cross-woven intermediate woven fabric M is formed. Reinforced hollow fabric for FRP, characterized by being deformed into 3. A resin reinforced fiber woven fabric, which comprises an upper warp 1H
Upper woven fabric H, in which the upper and lower wefts 2H are textured, and the lower warp
An intermediate woven fabric M in which an intermediate warp 1M and an intermediate weft 2M are textured between a lower woven fabric L in which 1L and a lower weft 2L are textured, and a warp 1M thereof is a weft 2H of an upper woven fabric H and a lower woven fabric. L lower weft
The intermediate woven fabric M is arranged in a curved meandering shape or a curved crossing meandering shape by shifting the upper and lower connecting positions from 2L to form a texture, and the intermediate woven fabric M is divided into upper woven fabric H and lower woven fabric L. The hollowness is adjusted by selecting the binding and locking position, the inclination angle, and the interval between the upper woven fabric H and the lower woven fabric L, and the auxiliary warp 1S and the auxiliary weft 2S are organized on the upper woven fabric H. The woven fabric S is characterized in that the auxiliary warp 1S is structured into the upper weft 2H and the auxiliary woven S is attached on the upper woven H in a curved meandering state.
Reinforced hollow fabric for FRP. 4. A resin reinforced fiber woven fabric, wherein a cross-woven warp yarn 1Q and a cross weft yarn 2Q of a meandering woven fabric fabric Q are formed on a base fabric fabric P having textures of warp yarns 1P and weft yarns 2P. A reinforced hollow woven fabric for FRP, characterized in that a meandering curved portion Q'of a meandering woven fabric Q is arranged in a projecting state alternately with respect to a substrate woven fabric P by being structured into 1P and weft 2P.