KR20000031725A - Fixing member stuck in tightening portion of reinforcing material - Google Patents

Abstract

PURPOSE: A fixing member stuck in a tightening portion of reinforcing material is provided to have the excellent workability, the efficiency, intensity of a frame even in a danger and narrow working spot. CONSTITUTION: A fixing member stuck in a tightening portion of reinforcing material is equipped with a 'U'-shaped fixing portion(5), a plane(6), an extended straight portion(11), a tightening portion of a reinforcing material(15) and a horizontal protruded portion(20). In a joined portion of a pair of frames to fit by crossing 0-50 degrees lengthwise a separator for using with uniting the separator having plate-shaped ends in both ends, the plate-shaped end of the separator is supported by inserting between frames. Next, the horizontal protruded portion(20) is inserted in a hole installed by penetrating the plate-shaped end and the frame and rotating as a shaft, and the 'U'-shaped fixing portion(5) is fixed by hanging between the frames.

Description

Clamping member attached to reinforcement tightening part

The present invention relates to a fastening member attached to the reinforcing member fastening portion, and more particularly to a fastening member attached to the reinforcing member fastening portion suitable for use in concrete molds and the like.

Conventionally, a U-shaped locking member (conventional example) called a U-clip shown in FIG. 6 is used in a forced concrete mold or the like. This is a convenient fastening member that supports and secures the back of the mold with strong force for each element, and the material is a bar of low carbon steel or medium carbon steel, which is easy to purchase anywhere and is relatively inexpensive.

Usually, when making a large concrete structure, in many cases, the unit frame of about 10-30 kg of unit weights is used as a large number of steps. In this case, since the strength of the entire combination mold tends to be insufficient, it is common to frequently use a pair or dozens of reinforcing materials such as a pair of steel pipes on the back of the mold in a well sperm shape on the mold.

The general assembly and fixing method of such a steel mold can be largely divided into two methods of tightening and attaching method of the mold and the reinforcement. However, the mold clamping member and the method of fixing the mold itself are the same.

The first method is a construction method that is frequently used, but the front plate-shaped separator is inserted into two mold frames by using a hole A installed through the mold frame without drilling a hole in the mold face plate. Hook and fasten to the fixing member. In this case, tightening of the reinforcing material was performed by inserting a fastening member into a hole B which was separately drilled and installed around the hole A of the frame. This method had a disadvantage in that the reinforcement could not be tightened in the separator coaxial extension.

In the second method, first, a hole C is drilled into the mold face plate, and the rod-shaped separator tip is inserted into the holes C and C of both face plates, and the rod-shaped fastening member is inserted into the screw of the separator tip from the outside of the face plate to reinforce the reinforcing material. It is a method of tightening and attaching. In this case, there is an advantage in that the reinforcing material can be tightened and attached to the separator coaxial extension part. However, there is a problem of reducing the life (the number of times of repeated use) of the forced mold itself by making an extra unevenness after concrete solidification and damaging the smoothness of the finish surface because a hole in the face plate itself.

In addition, since the conventional clamping member for steel dies requires another reinforcing member fastening member (fixing member), fixing with these reinforcing members was not easy. In particular, in dangerous places such as high places where bad footings are bad, or in narrow places, three types of U-shaped locking members, linear rod-shaped fastening members, and fastening washers are used to fix the reinforcement to the steel mold by using other fastening members. Parts are necessary, and the hands are very difficult to precisely position these parts, which is very difficult.

In addition, when the frame 40 rises vertically and overlaps each other, as shown in FIG. 8, a reinforcing member fastening member (fixing member metal tie) 201 having a different height from a conventional height inserted into the through hole 40B of the frame 40 is shown. (See FIG. 7) has a problem that one side is necessarily long, and therefore the head is lowered due to gravity, thereby impairing workability.

Therefore, the present inventors have come to the present invention as a result of repeating the devising and testing work, focusing on being able to solve this problem at one time by integrating the reinforcing material tightening part as a step in a part of the conventional fastening member.

That is, the present inventors devised the locking member while basically adopting the first method, and added the reinforcing member fastening member to the locking member itself so that the reinforcing member was tightened and attached on the separator extension line.

It is an object of the present invention to provide a locking member attached to an integrated reinforcement fastener which is particularly excellent in workability and efficiency and mold strength in dangerous and narrow work sites.

Another object of the present invention is to provide a fastening member attached to a reinforcing member tightening portion which is easier to handle with a smaller number of parts than before.

1 is a perspective view of an embodiment of the present invention,

2 is a side sectional view of an essential part showing a use state of an embodiment of the present invention;

3 is a perspective view of an essential part of an embodiment in use;

4 is a perspective view of a reinforcing member fastening structure of another embodiment,

5 is a perspective view showing a state of use of the embodiment;

6 is a perspective view of a conventional example (U-clip),

7 is a perspective view of a conventional example of a reinforcing member fastening structure having different heights (fixing member metal tie), and

8 is a perspective view of a reinforcing member fastening structure (conventional example) having different heights inserted into a through hole of a frame.

* Explanation of symbols for the main parts of the drawings

1: locking member attached to the reinforcement fasteners

5: U-shaped locking portion of the narrow hole

6: U shape 10: Straight part

11: extension straight line part α: angle formed by U-shaped surface 6 and straight part 11

15: reinforcing material tightening part 15A: threaded part

15B: Tip 17: Long Hole for Wedge Insertion

18: wedge 20: horizontal protrusion

27: nut 28: spring washer

30: arm-shaped member 40: frame

50: separator 50A: separator end

40B: through hole in frame 50B: through hole in separator end

60A, 60B: face plate 70, 71: pipe (reinforcement material)

100: concrete 200: U clip

201: Reinforcing member tightening member of different height

The fastening member attached to the reinforcing member fastening portion according to the present invention is a plane 6 including a U-shaped locking portion 5 with a narrow hole and a U-shaped surface 5A at the narrow U-shaped locking portion 5. Stiffener tightening part which is bent by an angle α of 80 ° to 130 ° and rises by an angle β of approximately 85 ° to 110 ° than the extension straight line part 11 and the extension straight line part 11 which are substantially horizontally continuous. (15) and a horizontal projection (20) protruding substantially parallel to the U-shaped surface (5A) at the base of the reinforcing material tightening portion (15).

In addition, the front end of the reinforcing material tightening part 15 is characterized in that the screw-shaped bolt-shaped front end 15A.

In addition, the front end of the reinforcing member tightening unit 15 is characterized in that the front end (15B) having a long hole 17 for wedge insertion.

Further, in a joint of a pair of molds which cross-engage with the longitudinal direction of the separator at 0 ° to 50 ° for use in combination with a separator having plate-shaped ends at both ends,

The plate-shaped ends of the separator are held between the frames of the mold, the horizontal protrusions 20 are inserted into these frames, the plate-shaped ends and the holes provided through the frames, and they are rotated about the axis, and the U-shaped locking height The government 5 is characterized in that it is fixed by walking between the frames.

In addition, the separator is characterized by being a linear rod shape, a flat plate shape or a U-shaped cross section.

Hereinafter, the present invention will be described in detail using examples.

(Example)

1 is a perspective view of a fastening member attached to a reinforcing member tightening portion which is an embodiment of the present invention, Figure 2 is a side cross-sectional view of the main portion showing a state of use of the embodiment of the present invention, Figure 3 is a perspective view of a major portion of the embodiment of the state of use, Figure 4 Is a perspective view of a reinforcing member tightening part of another embodiment, Figure 5 is a perspective view showing a state of use of the embodiment, Figure 6 is a perspective view of a conventional example (U-clip), Figure 7 is a reinforcing member fastening member (fixing member metal tie) of different heights 8 is a perspective view of a reinforcing member fastening member (conventional example) having a different height inserted into a through hole of a frame.

1, 2, 3, 4, and 5 in the reference numeral "1" is a fastening member attached to the reinforcing member tightening part of the embodiment of the present invention, "5" is a U-shaped locking fixing part, narrow hole, “6” is U-shaped, “10” is straight, “11” is an extended straight portion, α is an angle formed by U-shaped surface 6 and straight portion 11, “15” is tightening part of reinforcement, “15A” Is the thread, “15B” is the tip, “17” is the long hole, “18” is the wedge, “20” is the horizontal protrusion, “27” is the nut, “28” is the spring washer, “30” is the arm member, “40” is frame, “50” is separator, “50A” is separator end, “40B, 50B” is through hole at frame and separator end, “60A, 60B” is faceplate and “70, 71” is pipe) Reinforcement), "100" is concrete, "200" is a conventional U-clip.

In Fig. 1, the reinforcing material fastening portion 15 is a columnar shape with a screw bone on the top (also available as hot press working), and the horizontal protrusion 20 and the extended straight portion 11 at angles β and γ at the base thereof, respectively. Connected. Then, the plane including the narrow hole U-shaped engaging portion 5A is continuously formed at an angle α (80 degrees ≤ α ≤ 130 degrees) (γ, δ is approximately 90 degrees) raised from the extension straight portion 11. The central axis is present on 6), and the raised angle [alpha] is the plane 6 and the extension straight portion 11 in plane including the centerline of the stiffener tightening portion 15 orthogonal to the plane 6. ) Is the angle formed. Moreover, as for the angle (beta) which the reinforcing material tightening part 15 and the extended straight part 11 make, 85 degrees <= (beta) <= 110 degrees are preferable. The reason is that when β is less than 85 °, when the narrow hole U-shaped locking part 5 is struck with force, an extra slope remains in the reinforcing member tightening part 15. On the contrary, when β exceeds 110 °, α is reduced. This is because, unless the U-shaped depth of the narrow hole U-shaped engaging portion 5 is increased, an extra inclination remains in the reinforcing material tightening portion 15, which is not practical. The range of β is mainly determined in view of workability.

The U-shaped surface 5A is substantially parallel to the horizontal projection surface 20, which is important for securing the action of fitting the pair of frames 4 as described later.

In addition, when the raised angle α is less than 80 °, it is difficult to fit the pair of frames 40, and when it exceeds 130 °, the depth of insertion is less than 80 °, which makes it difficult to fit the pair of frames. ≦ α ≦ 130 ° is preferable.

The straight portion 10 of the narrow U-shaped locking portion 5 and the reference numeral “5C” are substantially parallel to each other, and the gap 5D is smaller than the thickness of the sum of the pair of frames 40 and the separator ends 50A. Since it is slightly small, in the state where three plates (frame 40, separator end 50A, frame 40) are inserted in the gap 5D (inserted state), it expands to the outside by elastic deformation, and the nut 27 And the three-way between the frame (frame), the separator, and the reinforcement, as well as the tensile stress of the reinforcing member engaging portion 15 by the spring washer 28, can be firmly and securely fixed (see FIGS. 1 and 2).

The process leading to this fixation is as follows.

In FIG. 2, when 60A and 60B are respectively the back face plate and the front face plate of the concrete wall, the holes 50A of the separator 50 are sandwiched between the frames 40 of the pair of face plates 60A and 60B. 40B, 50B, 40B (hereinafter, referred to as "hollow") are inserted into the hollow horizontal projection portion 20 of the locking member of the present invention. Usually, this insertion is done by tapping hard with a hammer in the arrow X direction (horizontal protrusion axis) in Fig. 1.

Then, after hitting the horizontal projection 20 into the hollow to the bottom of the hollow forcefully, by tapping the narrow hole U-shaped locking portion in the middle plate by hammer hammer in the direction of arrow Y which is almost perpendicular to the U-shaped surface 5A in FIG. . That is, the reinforcement fastener 15 is rotated in the direction of the arrow Z with the horizontal protrusion 20 as an axis, so that the reinforcement 70 intersected as shown in FIG. Corner tube) and 71 (a round tube in this drawing) are pressed in an overlapping state, so that locking can be secured. In addition, although the reinforcing material (corner tube) 70 is one in FIG. 3, two may be parallel.

At this time, at the same time, the separator 50 is connected to the junction of the front face plate 60B, which is opposed by the separator 50 through the center of the concrete 100 (but it is still empty at this time because the raw concrete is injected later). The joints between the face plates are the same as those between the back face plates of the above), and each concrete mold is fixed to the I-shape, and at the same time, the reinforcing material is securely tightened and fixed to the outside and the front outside of each concrete wall. By repeating this work, a rigid assembly frame with a large wall area is easily constructed. Further, the reinforcing material may be in one direction without crossing depending on the wall thickness and the wall area, or may be one in each, not in pairs (see Fig. 5).

In addition, the concrete mold after concrete solidification can be easily disassembled by releasing the nut 27, so that it can be transported to another site. Only the separator remains in the concrete wall.

In addition, as shown in FIG. 4 as another embodiment of the reinforcing member tightening portion 15, the wedge insertion long hole 17 (tightening stroke) in which the wedge 18 is drilled and installed in the distal end portion 15B of the reinforcing member tightening portion 15. Usually, two or more are installed for adjustment) and are put together by a force hitting in the W direction by a hammer, and are simply attached together.

In addition, a gear-shaped lottery may be provided on the top dead surface of the wedge 18. In this way, the locking fixing becomes more firm and the wedge 18 is not easily peeled off after tightening. In addition, when disassembling, the wedge 18 can be pulled out by tapping with a hammer in the opposite direction to the W direction. Thus, the wedge reinforcement attachment portion using the wedge is very suitable for the construction environment of the bad environment.

All the above objects are achieved by practicing the present invention. That is, an integrated reinforcement fastener attaching member (such as a mold) and a fastening member, which is excellent in workability and work efficiency and strength of a concrete mold, is provided in particularly dangerous and narrow workplaces.

Claims (5)

U-shaped locking portion 5 of the narrow hole; The straight straight line 11 which is bent by the angle α of 80 ° to 130 ° from the plane 6 including the U-shaped surface 5A in the narrow hole U-shaped locking portion 5 and continues substantially horizontally. ; Reinforcing member tightening portion 15 that rises at an angle β of 85 ° to 110 ° from the extension straight portion 11; And And a horizontal protrusion (20) protruding substantially parallel to the U-shaped surface (5A) at the base of the stiffener tightening portion (15). The method of claim 1, A locking member attached to the reinforcing member fastening portion, characterized in that the tip portion of the reinforcing member tightening portion 15 is a screwed bolt-shaped tip portion 15A. The method of claim 1, A locking member attached to the reinforcing member fastening portion, characterized in that the front end portion of the reinforcing member tightening portion 15 is a front end portion 15B having a long hole for insertion of a wedge. The method of claim 1, In a joint of a pair of molds intersecting with the longitudinal direction of the separator at 0 ° to 50 ° for use in combination with a separator having plate-shaped ends at both ends, the plate-shaped end of the separator between the frame of the mold Insert the horizontal projections 20 into the holes provided through the frames and the plate-shaped end portions and the frames, and rotate them about the axis, and fix them by walking between the frames at the U-shaped locking portions 5; Locking member attached to the reinforcing member tightening portion, characterized in that. The method of claim 4, wherein A locking member attached to a reinforcing member fastening portion, wherein the separator is a straight rod shape, a flat plate shape or a U-shaped cross section.