JPS6129889Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is formed by an assembled formwork in which a plurality of concrete formworks with peripheral protruding plate parts are arranged side by side and assembled and fixed via pins at the overlapping peripheral protruding plate parts. Regarding a member for temporarily fixing an insert member to be embedded and fixed in a concrete frame, the purpose is to make the peripheral protruding plate part and pin hole of the formwork, which is widely used today, into a perforated member. (In other words, there is no need to require structural improvement on the formwork side), the structure can be simplified, and the insert member can be used economically and conveniently. The object of the present invention is to allow the insert member to be temporarily fixed to the formwork while reliably preventing poured concrete components from entering the female threaded hole of the insert member.

First, an embodiment of the present invention will be described based on the drawings. A plurality of concrete formworks 5 with peripheral protruding plate parts 5A are arranged side by side to form overlapping peripheral protruding plate parts 5A, 5.
In order to temporarily fix the insert member 4 buried and fixed in the concrete frame C formed by the assembly form K assembled and fixed via the pin 6 at A to the assembly form K before concrete pouring. , which has a female thread 4 of the insert member 4.
A is inserted into the assembly form K through a male screw 1 that can be screwed into a and a pin hole a that is clamped between the overlapping peripheral protruding plate parts 5A and 5A and connecting the overlapping peripheral protruding plate parts 5A and 5A. It has a flat plate 2 that can be fixedly held, and as shown in the figure, this flat plate 2 is configured to have a width larger than the diameter of the male screw 1 in the direction perpendicular to the axis of the male screw 1. ,
Between the male screw 1 and the flat plate 2, there is an inner end surface 3a that can close the female screw hole 4a when the male screw 1 is screwed together, and an adjacent concrete formwork 5, 5.
A water stop member 3 having an outer end surface 3b that can be brought into contact with the inner surface of the water stopper member 3 is interposed and continuous.

The water stop member 3 has a truncated conical shape with a smaller diameter toward the inner end surface 3a along the axial direction thereof, and has a hollow portion that opens toward the outer end surface 3b. After inserting one end of the flat plate 2, both 2 and 3 are integrated by soldering. The male screw 1 is integral with the water stop member 3 from the beginning of manufacture.

In this temporary fixing member A, the flat plate 2 is securely held between the overlapping plate parts 5A and 5A over a large area having a width larger than the diameter of the male screw 1, and the pins 6 are used to position the flat plate 2 in the front, back, left and right positions. In addition to being regulated,
Since the outer end surface 3b is prevented from rotating by coming into contact with the molds 5, 5, it is held very stably in the assembly mold K, and therefore the insert member 4 can also be temporarily fixed in the desired position. Also, the inner end surface 3a has a female threaded hole 4.
b is closed to prevent concrete components from penetrating into the inside and hardening inside. Therefore, when attaching a scaffold, a ladder, etc. to a concrete frame, it is possible to easily screw the anchor bolt into the insert member 4.

Since the water stop member 3 has a conical shape, when the formwork K is dismantled after the poured concrete has hardened, when removing this temporary fixing member A, it has a width larger than the diameter of the male screw 1. Therefore, it is possible to easily pull out the water stop member 3 while rotating the flat plate 2 with a large force couple with little resistance.

The temporary fixing member A is generally made of metal, but may be made of synthetic resin in some cases.

In summary, the insert member temporary fixing member according to the present invention has the female thread 4a of the insert member 4.
into the assembly form K through a male screw 1 that can be screwed into the pin hole a that is sandwiched between the overlapping peripheral protruding plate parts 5A, 5A and connecting the overlapping peripheral protruding plate parts 5A, 5A. The flat plate 2 is configured to have a width larger than the diameter of the male screw 1 in the direction perpendicular to the axis of the male screw 1, and the male screw 1 and the flat plate 2, the water stop member has an inner end surface 3a that can close the female threaded hole 4b when the male screw 1 is screwed together, and an outer end surface 3b that can be brought into contact with the inner surface of the adjacent concrete forms 5, 5. 3 are interposed in series.

That is, by using the peripheral protruding plate part 5A of the formwork 5 and the pin holes a, the flat plate 2 is inserted between the overlapping plate parts 5A and 5A.
can be reliably clamped in a large area having a width larger than the diameter of the male screw 1, and also by using the pin hole a and the pin 6 when connecting the overlapping plate parts 5A and 5A. In order to hold the flat plate 2 to the assembly formwork K and to prevent accidental rotation around the axis of the pin hole by abutting the outer end surface of the water-stopping member 3 against the inner surface of the adjacent formworks 5, 5, an insert member is used. 4 can be temporarily fixed very stably and firmly.
Moreover, it is possible to prevent the inconvenience of concrete components entering the female threaded hole 4b due to blockage by the inner end surface 3a of the water stop member 3 and hardening therein (later causing trouble in screwing the anchor bolt).
Moreover, by effectively utilizing the structure of the existing formwork,
While using a structure in which the flat plate 2 is clamped between the formworks 5, 5, by making the width of the flat plate 2 larger than the diameter of the male screw 1, the clamping pressure described above can be reliably applied over a large area. In addition, when removing the male screw 1, the male screw 1 can be rotated easily using a large couple, and the flat plate 2 itself can be easily removed by manually operating the flat plate 2 itself without using a spanner or wrench. These advantages, combined with the simple structure of the device itself, have made it possible to use it in an extremely economical and convenient manner as a whole.

[Brief explanation of the drawing]

The drawings show an embodiment of the insert member temporary fixing member according to the present invention, in which Fig. 1 is a plan view, Fig. 2 is a side view, Fig. 3 is a cross-sectional view of the assembled state, and Fig. 4 is the completed state. FIG. DESCRIPTION OF SYMBOLS 1...Male thread, 2...Flat plate, 3...Water stop member, 3a...Inner end surface, 3b...Outer end surface, 4...Insert member, 4a...Female thread, 4b...Female screw hole, 5... Concrete formwork, 5A... Peripheral protruding plate portion, 6... Pin, a... Pin hole, C... Concrete frame, K... Assembly formwork.

Claims (1)

[Scope of claim for utility model registration] Concrete formwork 5 with peripheral protruding plate portion 5A
A plurality of the overlapping peripheral protruding plate parts 5A, 5 are arranged side by side.
A member for temporarily fixing to the assembly form K an insert member 4 to be embedded and fixed in the concrete frame C formed by the assembly form K which is assembled and fixed via pins 6 at A. ,
A male screw 1 that can be screwed into the female screw 4a of the insert member 4, and the overlapping peripheral protruding plate portions 5A, 5.
A protruding plate portion 5 interposed between A and the overlapping periphery thereof
It has a flat plate 2 that can be fixedly held on the assembly form K through a pin hole a that connects A and 5A, and the flat plate 2 is inserted into the male screw 1 in a direction perpendicular to the axis of the male screw 1. An inner end surface 3a configured to have a width larger than the diameter, and capable of closing the female screw hole 4b when the male screw 1 is screwed between the male screw 1 and the flat plate 2.
A member for temporarily fixing an insert member, characterized in that a water stop member 3 having an outer end surface 3b that can be brought into contact with the inner surfaces of adjacent concrete forms 5, 5 is interposed and continuous. The member for temporarily fixing an insert member according to claim 1, wherein the water stop member 3 has a truncated conical shape with a smaller diameter toward the inner end surface 3a along the axial direction of the water stop member 3.