JPH0633123Y2 - Temporary stopper for concrete formwork - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) This invention is intended for assembling a concrete formwork using a heat insulating material that also serves as a weir plate and has a plastic foam as a core material.
The present invention relates to a concrete frame temporary fixture for temporarily fixing pipes and square beams to the heat insulating material that also serves as a dam plate.

(Prior Art) No conventional temporary crosspiece fixture for concrete formwork of this type is found.

(Problems to be solved by the invention) In recent years, a heat insulating material that also serves as a weir board has been developed, which has a plastic foam core as a core material and has rigidity and a heat insulating effect as a weir board of a concrete formwork. When assembling, the pipes and squares must be temporarily fixed to the outer surface of the insulating material that also serves as the barrier plate.

However, the conventional temporary fixing means for hitting a nail on the surface of a barrier plate and temporarily fixing a pipe or a square bar with a numbered wire requires a double process of nailing and binding the numbered wire, which is a troublesome work.

(Means for Solving Problems) In order to solve the above problems, the present invention is made of a wire material having elasticity and is formed into a ring shape ( 2 ) partially provided with an open portion (1). Then, outward convex arcuate bulges (5), (5 ') are formed on both side arcuate parts (4), (4') with respect to the open part (1) of the ring-shaped wire ( 2 ). The arcuate portion (6) facing the open portion (1) is formed with an outward C-shaped bulge (7), and the open portion (1) of the ring-shaped wire ( 2 ) is formed.
The linear projecting pieces (3) and (3 ') are provided at both ends of the above to construct the concrete frame temporary tack (a).

(Operation) (1) When the round pipe (A) is used for the crosspiece, the open portion (1) of the temporary fastener (a) is widened at the required position of the pipe (A) to open the temporary fastener (a). When pushed into the pipe (A), the temporary stopper (a) is opened and closed by its elasticity, and the ring-shaped portion ( 2 ) is pressed against the pipe (A) to cause the pipe (A) to move.
Fixed to.

Therefore, the linear protruding piece (3) of the temporary stopper (a),
When the temporary stopper (a) is pushed into the insulating material (B) also used as the barrier plate, the linear protruding piece (3) of the temporary stopper (a), (3 ') is pierced into the insulating material (B) that also serves as a weir plate, and the pipe (A) is temporarily fixed to the outside of the insulating material (B) that also serves as a weir plate by the temporary fasteners (a). A crosspiece is formed.

On the other hand, when removing the pipe (A) from the heat insulating material (B) that also serves as the barrier plate, both side bulging bodies (5) of the temporary stopper (a),
Hold (5 ') part and pull, or bulge (7)
When the operator inserts a prison and twists it, the temporary fastener (a) comes out of the heat insulating material (B) that also serves as the barrier plate, and the pipe (A) comes off.

After that, when the bulging body (7) of the temporary fastening tool (a) is grasped and pulled, the temporary fastening tool (a) is elastically opened and closed in the same manner as described above, and is detached from the pipe (A).

(2) When using a square bar (C) for the crosspiece, the square bar (C) is applied to the outer surface of the insulating material (B) that also serves as a barrier plate, and the temporary fastener (a) is released from the opening (1) at a predetermined position. If it fits into (C) and is pushed into the insulating material (B) that also serves as a weir plate, it operates in the same manner as above, and the square material (C) is temporarily attached to the outside of the insulating material (B) that serves also as a weir plate (a). And the crosspieces are formed by the square bar (C).

On the other hand, when the square bar (C) is removed from the heat insulating material (B) also used as the dam plate, if the temporary fastener (a) is operated in the same manner as described above, the temporary fastener (a) becomes the heat insulating material (B) also used as the dam plate. The timber (C) and the temporary fixing tool (a) come off from it.

(Embodiment) The drawings show an embodiment of the present invention, and the structure thereof will be described with reference to the drawing. (A) is a temporary tack for a concrete formwork constructed by bending a wire rod having elasticity. Then, a ring-shaped ( 2 ) partly provided with an opening (1) is formed, and the ring-shaped wire ( 2 ) is located between the arcuate portions (4), (4 ') on both sides of the opening (1). The outer curved portion is curved in an outward convex arc shape to form outer convex arcuate bulges (5) and (5 ') in the middle portions of both side arcuate portions (4) and (4'), respectively, to form an open portion. arc portion opposite the (1) to (6) bent in a U-shape to the outside U-shaped bulge of the outer (7) is formed in an arcuate portion (6), ring-shaped portion wire (2) Opening part (1)
The linear projecting pieces (3) and (3 ') are provided at both ends of the above, and the U-shaped hooks (8) are formed downward on the linear projecting pieces (3) and (3') on both sides thereof. The tips of the linear protruding pieces (3) and (3 ') on both sides are processed to be sharp (9).

(D) and (E) are walls and beams of concrete buildings,
(B) and (F) are heat insulating materials that also serve as barrier plates for the walls (D) and the beams (E), and are formed by using a plastic foam as a core material and attaching soft surface skins to both surfaces thereof. (A) is a round pipe of a crosspiece, (G) and (H) are joists and Daihiki, and (C) is a square bar of the crosspiece.

Next, the operation will be described. As shown in FIG. 3, a mold for a wall (D) with a beam (E) is formed by using the heat insulating materials (B) and (F) that also serve as barrier plates, joists (G), and Daihiki (H).

Therefore, when the round pipe (A) is used for the crosspiece of the heat insulating material (B) also serving as the barrier plate, the bulging bodies (5), (5 ') of the temporary fastener (a) are provided at appropriate places on the pipe (A). If the temporary stopper (a) is pushed into the pipe (A) by holding the portion), the temporary stopper (a) is opened and closed by its elasticity, particularly the elasticity of the bulging body (7). As shown in FIG. 2, the arcuate portions (4) and (4 ') on both sides are pressed against the pipe (A) and fixed to the pipe (A).

Then, as shown in FIG. 4, the temporary stoppers (a) are directed toward the linear projecting pieces (3) and (3 ′) of the temporary stoppers (a) and the temporary stoppers (a) are moved toward the barrier plates. When pushed into the combined heat insulating material (B),
The linear projecting pieces (3) and (3 ') of the temporary stopper (a) are easily and smoothly pierced by the sharp point (9) at the tip thereof into the insulating material (B) also used as a dam plate, and the linear shape Protruding piece (3),
The catch (8) of (3 ') is caught in the heat insulating material (B) also serving as a weir plate, and the temporary stopper (a) becomes difficult to come off, and the pipe (4) is provided outside the heat insulating material (B) also serving as a weir plate. It is temporarily fixed by the temporary stopper (a) to form a crosspiece by the pipe (A).

On the other hand, concrete is poured into the wall (D) and beam (E).
When the pipe (A) is to be removed from the heat insulating material (B) also used as the dam plate in dismantling the fixing member of the formwork after the construction of
When the swelling bodies (5) and (5 ') of the temporary fixing (a) are held and pulled, or when the swelling body (7) is inserted and pryed, the temporary fixing (a) causes the weir plate. The pipe (A) comes off from the combined heat insulating material (B).

After that, when the bulging body (7) of the temporary stopper (a) is grasped and pulled, the elasticity of the temporary stopper (a) causes the temporary stopper (a) to open and close in the same manner as described above and come off the pipe (A).

Further, as shown in FIG. 5, when the bar (C) is used for the crosspiece of the insulating plate (B) also used as the barrier plate, the rectangular member (C) is applied to the outer surface of the thermal insulator (B) which also functions as the barrier plate, and the required location In, the ring upper wire rod ( 2 ) of the temporary fastener (a) is fitted to the square rod (C), and the linear projecting pieces (3) and (3 ') are attached to the heat insulating material (B) which also serves as a dam plate.
If it is pushed in, it acts in the same manner as above, and the square bar (C) is temporarily fixed to the outside of the insulating material (B) also used as the barrier plate by the temporary stopper (a) to form a crosspiece made of the square bar (C).

On the other hand, concrete is poured into the wall (D) and beam (E).
After disassembling the fixing member of the form after the construction, when the square bar (C) is removed from the heat insulating material (B) also used as the dam plate, the temporary fixing part (a) is operated in the same manner as above. The stopper (a) slips out of the insulating material (B) that also serves as the barrier plate, and the square bar (C)
Comes off.

(Effect of the Invention) The temporary crosspiece fixture for concrete formwork of the present invention has the following remarkable effects.

(1) Since it is formed in a ring shape with an opening part provided in a part,
It can be used for both pipes and square beams, which is useful for work.

(2) It is composed of a wire material having elasticity, and linear projecting pieces are provided at both ends of the open part of the ring-shaped wire part, and a U-shaped bulge outward is formed in the arc part facing the open part. To do. Therefore, (a) the U-shaped bulging member acts as a spring, the temporary stopper is opened and closed easily, and the temporary stopper is easily attached to and detached from the rail of the pipe.

(B) Since the U-shaped bulge protrudes outward, when removing the temporary stopper, insert the saw in the bulge, pass a string, or pry your fingers to remove the temporary stopper. It is possible to handle the bulging body as an operating portion, which is convenient for handling.

(3) Since the convex arcuate bulges outwardly are formed in the arcuate portions on both sides, when the temporary fastener is attached, if the convex arcuate bulges on both sides of the temporary fastener are sandwiched and pushed in, the The bulging members on both sides make it easy to push in the temporary fastener, and the temporary fastener can be easily and accurately attached.

(4) The structure is extremely simple, and the wire rod having elasticity can be easily manufactured at low cost.

(5) When the hooks are formed on the linear protruding pieces on both sides, when the crosspiece is attached to the insulating material that also serves as the dam plate by the temporary stopper, the hooks on the linear protruding pieces on both sides of the temporary stopper are dammed. It is possible to properly mount the crosspiece by making it more difficult for the temporary fixing tool to come off because it gets into and is caught in the heat insulating material that also serves as a plate.

[Brief description of drawings]

FIG. 1 is a side view of a temporary tacking tool for a concrete formwork according to an embodiment of the present invention, FIG. 2 is a plan view, and FIG. 3 is a state in which a round pipe is attached by the temporary fastening tool. Fig. 4 is a side sectional view of the main part of the formwork, Fig. 4 is a plan sectional view of the main part of the same as above, and Fig. 5 is a plan sectional view of the main part of the formwork with the crosspieces of the timber attached by the temporary fasteners. is there. (A) ... Round pipe, (C) ... Square bar, (a) ... Trail temporary stop for concrete formwork, (1) ... Open part, ( 2 ) ... Ring-shaped wire, (3), (3 ') ... Linear protruding pieces (4),
(4 ') ... Arc parts on both sides, (5), (5') ... Convex arcuate bulges on both sides, (6) ... Arc parts, (7) ... U-shaped bulge,
(8) ... Hook, (9) ... Sharp,

Front page continuation (72) Inventor Masahiro Ichijima 6-10-17-103 Oto, Yono-shi, Saitama (56) Bibliography 42-19870 (JP, Y1) 40-306 (JP, Y1) ) Actual public Sho 48-7162 (JP, Y2)

Claims (2)

[Scope of utility model registration request] 1. A ring-shaped bulging member which is made of a wire material having elasticity and is formed in a ring shape with an opening portion provided in a part thereof, and the ring-shaped wire member has arcuate protrusions outward on both side arc portions with respect to the opening portion. To form a U-shaped bulge toward the outside in the arc portion facing the open portion, and linear projecting pieces are provided at both ends of the open portion of the ring-shaped wire rod. Temporary fastener. 2. A temporary fixture for a concrete formwork according to claim 1, wherein a hook is formed on linear projecting pieces provided at both ends of the open portion of the ring-shaped wire.