JPH0747542Y2 - Collective fixing tool for multiple non-ferrous wire rods - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] This invention uses multiple non-ferrous wire rods.
The present invention relates to a fixing device that is fixed to the inside by a filler (expansion material or adhesive).

[0002]

2. Description of the Related Art A method of fixing a non-ferrous wire material such as FRP (fiber reinforced resin) using an expanding agent is particularly effective because the expansion pressure acts hydraulically to fix the wire material without damaging the wire material.
It is suitable for grasping and towing an RP wire or fixing it on the concrete surface towed. FIG. 7 is a conceptual diagram showing a state in which the FRP wire F is tensioned, the expansive material E is injected into the fixing sleeve S and solidified in order to prestress the concrete C, and then fixed on the outer surface of the concrete C.

When prestressing concrete with the post-tension method, the tension of the cable must be 50 tons or more, but the yield strength of the FRP wire rod is 10 to one.
Since it is about 20t, it is necessary to use a multi-cable type in which 5 to 6 cables are put together practically. However, there has never been an example in which the FRP wire is fixed by the multi-cable system, and in the literature, "when using a plurality of FRP rods 5, a gable plate having a plurality of holes as shown in the figure may be used," In order to increase the number of holes in the gable plate P of No. 7, there is no problem, and there is only an additional publication (JP-A-03-183849).

[0004]

[Problems to be Solved by the Invention] According to the above publication,
When the diameter of the end plate P in FIG. 6 is increased to pass 5 to 6 FRP wire rods, the amount of expansion material used increases. Therefore, the reaction heat during expansion exceeds the heat resistant temperature of the FRP wire material, or the jetting phenomenon due to boiling. Occurs and is not practical. That is, even if the conventional single wire fixing device is made large, it cannot become a plural wire fixing device. This device addresses the problem of developing fasteners exclusively for multiple wires.

[0005]

DISCLOSURE OF THE INVENTION A collective fixing device for a plurality of non-ferrous wire rods according to the present invention is such that only one non-ferrous wire rod is inserted and a plurality of filling holes for fixing the non-ferrous wire rods inside the holes are arranged in parallel inside. , A body with each of which is opened to an end surface, each non-ferrous wire rod passed through each of the conduction holes, an end plate attached to the main body end surface, and the main body end surface, sandwiched between the end plates,
A packing plate for preventing leakage of the filler from the end faces, between the end plates, and the conduction hole is provided.

In order to facilitate the injection of the filler into the fixing device, the end plate has a filler injection port and an overflow outlet which are opened on the outer surface, and the end plate is provided on the inner surface of the end plate or the end surface of the main body. Is
In order to fill the filling holes one by one with the filling material from the filling port one after another so that the filling material overflows from the overflow outlet, a feature is also provided that a connecting groove is provided to connect the required filling holes. .

[0007]

In the collective fixing device of the present invention, the fixing means is not limited to the conventional expansive material, but the filling material including the adhesive is used. In the prior art, that is, when several wires F are passed through the sleeve S of FIG. 6, if the expansion material E is replaced with an adhesive, only one side of the wire F can be bonded to the inner wall of the sleeve S. Therefore, the wire F receives an unbalanced load during towing. FRP wire is strong against a load with a uniform cross section, but weak against an unbalanced load.
Adhesives do not ensure secure attachment. However, according to this invention, one non-ferrous wire is fixed to each filling hole of the main body, so that it is possible to fix the non-ferrous wire with an adhesive at first.

Since the fixing device of the present invention has a number of filling holes for filling the fluid filling material and the non-ferrous wire rods pass through each of the filling holes, the leak preventing mechanism is likely to be complicated.
However, in this invention, all the filling holes are opened in the end face of the main body, and the packing plate applied to the end plate both closes the openings and prevents leakage along the non-ferrous wire. The large number of filling holes causes a trouble of injecting the filling material into each of them, but in the present invention, the filling port and the overflow outlet are provided on one end plate, and the filling holes are connected to each other by the connecting groove at the end. , The injection work was simplified.

[0009]

1 to 5 show one embodiment of the present invention.
F is a non-ferrous wire rod, 1 is a fixture body, 2 is a filling hole,
3 is an end plate, 4 is a wire-conducting hole thereof, 5 is a packing plate, 6 is an inlet, 7 is an overflow outlet, and 8 is a connecting groove. Note that FIG.
The through hole 9 in the center of the main body 1 shown in FIG. 2 may be provided with a towing rod therethrough or may be used to inject grout into a sheath in concrete. Of course, the through holes 9 are opened in the left and right end plates 3 and the packing plate 5 so as to communicate with each other.

FIG. 2 is a view showing the left end surface of the main body 1 of FIG. 1, and FIG. 3 is a view showing the same right end surface thereof.
Appears as a solid line. In this embodiment, the connecting groove 8 is provided on both end surfaces of the main body 1, but it is not provided on the main body 1 side, and the filling holes 2 opened on the end surface of the main body 1 are recessed in the end plate 3 to form a groove. You may contact me. The solid line in FIG. 4 is the right end plate 3 in FIG.
The outer surface is shown, but the chain line shows the case where the groove 8 is provided on the inner surface of the end plate.

In the embodiment shown in FIG. 6, the filling hole 2 is formed by a ready-made tube. That is, the main body 1 includes the outer pipe 1a and the filling pipe 1.
b and the core shaft 1c, the inside of the filling pipe 1b serves as the filling hole 2 and the wire F is passed through. If the core shaft 1c is also hollow, it can be used as a grout injection path like the through hole 9 in FIG. 5, and one end of the core shaft 1c is fixed to the end plate 3 and the other end of the extension is used for pulling a non-ferrous wire. You may use it as a towbar. In the case of this embodiment, the communication path between the filling holes 2 is always a concave groove on the inner surface of the end plate 3. That is, the inner surface of the left end plate 3 is formed by engraving the connecting groove 8 as shown in FIG. 2, and the inner surface of the right end plate 3 is provided with the groove 8 as shown in FIG. If the gap between the outer pipe 1a and the filling pipe 1b and the gap between the filling pipe 1b and the core shaft 1c of this embodiment shown in FIG. 6 are filled with grout or the like in advance, the integrity is enhanced. Although the two embodiments have been described above, the present invention can be variously changed and applied by a known technique of a mechanical designer without changing the gist thereof, needless to say, the fixing body, the end plate,
Needless to say, the shape of the packing or the like does not change, and the end plate may be provided with packing on only one side, and the end plate on the other side may be integrated with the main body from the beginning.

[0012]

EFFECTS OF THE INVENTION The present invention clarifies the error of the prior art that was determined to be a double-wire fastener by simply enlarging the single-wire fastener, and for the first time provided a batch fastener exclusively for multiple non-ferrous wire rods. I proposed the direction of development that should be promoted in the future. According to this invention, a plurality of filling holes are provided in one fixing tool, and non-ferrous wire rods are passed through the holes one by one to be filled and fixed, so that, as a filling material, needless to say, an expanding material can be used. In order to fix with an expansive material, a fixing device having a relatively large inner volume is used to increase the expansion pressure, but when adhering to the inner circumference of the filling hole with an adhesive, a small inner volume is sufficient and a small fixing device is obtained. In addition, even if the device has a large number of filling holes, the end face of the main body is also connected to the inner face of the end plate by the connecting groove so that the filling material injected from one end fills each filling hole like a single stroke. The filling mechanism and the injection work have been simplified.

[Brief description of drawings]

FIG. 1 is an elevation view of an embodiment of the present invention.

FIG. 2 is a side view taken along line XX in FIG.

FIG. 3 is a side view of YY in FIG.

FIG. 4 is a right side view of FIG.

5 is a cross-sectional view of the main body of FIG.

FIG. 6 is a cross-sectional view of a main body of another embodiment.

FIG. 7 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 1 Main body 2 Filling hole 3 End plate 5 Packing plate 8 Connection groove

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Taku Tokumitsu 5-17-17 Kokubun, Dazaifu City, Fukuoka Prefecture (72) Creator Katsumi Hino 3-4, 405, Suwa, Tama City, Tokyo (72) Creator Norihiko Yamato 1-6-9-9 Komatsu, Tsuchiura-shi, Ibaraki (72) Inventor Tetsuo Harada 4-3-10-103 Taishi, Nagasaki-shi, Nagasaki (56) References JP-A-63-272850 (JP, A)

Claims (2)

[Scope of utility model registration request] 1. A main body in which only one non-ferrous wire is inserted, and a plurality of filling holes for fixing the non-ferrous wire in the hole by arranging the non-ferrous wire in parallel are provided inside each end face, and each non-ferrous wire is attached. An end plate attached to the main body end face through the conduction hole, and a packing plate that is sandwiched between the main body end face and the end plate to prevent leakage of filler from the end face, the end plates and the conduction hole. A collective fixing tool for a plurality of non-ferrous wire rods, characterized by being provided. 2. The fastener according to claim 1, wherein the end plate has a filler injection port and an overflow outlet that are open to the outer surface, and the inner surface of the end plate or the end surface of the main body has the A batch of multiple non-ferrous wire rods characterized by having a connecting groove for connecting the required filling holes so that the filling material inserted from the inlet fills each filling hole one after another and overflows from the overflow outlet. Fastener.