JPH0352912Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> This invention is a concrete method used to maintain the posture of a concrete formwork installed on the side of the concrete construction site when forming a concrete structure. This is an idea related to an anchor for maintaining the formwork posture.

<Prior Art> Conventionally, this type of anchor for maintaining the posture of a concrete formwork has only one connecting fitting rotatably connected above the anchor body.

<Problems to be solved by the invention> Therefore, this kind of conventional concrete formwork posture maintaining anchor requires a large number of anchors when used to maintain the posture of the concrete formwork. , it was extremely uneconomical. However, not only this, but also the work of inserting and burying into concrete requires a great deal of effort and time, and when inserting and burying into concrete, it is necessary to determine the orientation of the upper connecting fitting and forcefully push it in by hand. There was a problem in that the work efficiency could not be improved because it required a lot of force.

Therefore, in order to solve these conventional problems, the present invention makes it possible to maintain the posture of concrete formwork at two or more locations by simply inserting one anchor into the concrete, thereby improving work efficiency. The purpose is to improve the quality and economic efficiency.

<Means for Solving the Problems> The structure of the present invention for achieving the object will be explained using FIGS. 1 to 3 corresponding to the embodiments. An anchor body 1 to be inserted and buried in poured concrete C in which a connecting pin insertion hole 4 is formed;
It consists of side walls 7, 7 and a bottom 9 that face each other, and an intermediate connecting member 21 is provided on the free end side of the side walls 7, 7.
A connecting fitting 3 is formed with a connecting pin hole 8 and a connecting pin hole 8a for connecting to the anchor body 1 is formed on the base end 6, and the connecting fitting 3 is connected to the connecting pin hole 8.
An anchor main body part A consisting of a connecting pin 5 which is swingably supported in the pin insertion hole 4 of the anchor body 1 via a, and b a pin insertion hole 4a for the connection pin insertion to be formed in the body part. It consists of a short shaft body 2a, opposing side walls 7, 7, and a bottom 9.
A pin hole 8 for connecting the intermediate connecting member 21 is provided on the free end side of 7.
is formed, and a connecting pin hole 8a for connecting to the anchor body 1 is formed on the proximal end 6, and a pin of the short shaft body 2a is inserted through the connecting metal fitting 3 through the connecting pin hole 8a. c an extension part B consisting of a connecting pin 5 pivotably supported in the hole 4a; It has a structure consisting of a connecting structure part D, and these a, b, and c.

<Function> Since the present invention has such a structure, one anchor body 1 is inserted into the concrete C, and the connecting fitting 3 attached to the upper end side 2 and the connecting fitting attached to the extension part B are connected. The metal fittings 3 and the metal fittings 3 may be buried in the direction of the mounting fittings 20 attached to the concrete formwork K. By doing this, the mounting bracket 20 attached to the concrete formwork K and the connecting brackets 3, 3 are connected by pins using intermediate connecting members 21, 21 as shown in FIG. . In this way, by simply inserting and burying one anchor in the concrete C, the attitude of the concrete formwork K can be maintained at a predetermined attitude at at least two or more locations.

<Examples> Examples of the present invention will be described below based on the drawings.

(First Embodiment) Figures 1 to 3 are diagrams showing the first embodiment of the present invention, in which the anchor body 1 of the anchor body part A is formed by bending the lower end of a round iron material into an L-shape and forming the upper end. The upper end side is formed by threading the hexagonal threaded part, and fixing the hexagonal threaded cylinder member 2, which is slightly longer in the vertical direction of a hexagonal cylinder shape and has a female thread 10 formed inside, by screwing into this threaded part.
A pin insertion hole 4 is formed in the upper end side of the cylindrical member 2 at approximately the middle thereof. On the other hand, the connecting fitting 3
is formed of a piece of sheet metal material and consists of opposing side walls 7, 7 and a bottom 9, and the side walls 7, 7 on the proximal end 6 without the bottom 9 have holes for the pin insertion hole 4. A connecting pin hole 8a for connecting the connecting pin 5 is formed, and a large number of pin holes 8, 8 for connecting the intermediate connecting member 21 are formed in the side wall portions 7, 7 on the free end side.
It has a structure in which it is formed through. The connecting fitting 3 having such a structure is connected to the anchor body 1 through the connecting pin hole 8a formed on the base end side 6.
The above-mentioned connecting pin 5 is pivotally attached to a pin insertion hole 4 formed in the upper end side 2 of the holder so as to be swingable.

To connect these two members 1 and 3, a connecting shaft may be used in addition to the above-mentioned connecting pin 5, and it is easily possible to fix and fix them by caulking, or by tightening and fixing them with bolts and nuts. It will be easy to understand.

The extension part B has a pin insertion hole 4a for inserting a connecting pin in the body part, and a female screw part 10 in the center in the longitudinal direction.
A short hexagonal cylindrical shaft 2a having a shape a, another connecting fitting 3 formed in the same structure as the connecting fitting 3, and a connecting pin formed on the base end side 6 of the connecting fitting 3. The hole 8a is formed by a connecting pin 5 which pivotally connects the shaft 2a and the connecting fitting 3 to each other so as to be able to swing freely with respect to the pin insertion hole 4a formed in the shaft 2a.

In addition, the connection structure portion D is connected to these anchor body portions A.
and an extension part B are screwed into each other in a detachable manner, and the upper half of a short threaded rod 11 having a male thread formed on the outer circumferential surface is connected to the female threaded part formed on the shaft body 2a. 10a, and the lower half portion is removably screwed into the female screw portion 10 formed at the center of the hexagonal threaded cylinder 2 of the anchor body portion A.

As shown in Fig. 4, the anchor body 1 of the anchor body part A is inserted into the concrete formwork posture maintaining anchor when the concrete C has not yet hardened, and after the concrete C has hardened, the anchor body 1 is inserted above the concrete formwork. Intermediate connecting members 21, 21 are placed between the mounting brackets 20, 20, which are clamped and fixed between the concrete formwork K set up on both sides of the space E where concrete is to be poured, and the two connecting brackets 3, 3. Connecting pins (not shown) are inserted into arbitrary pin holes 8, 8 of the connecting fittings 3, 3 to connect them, and the standing posture of the concrete formwork K is fixed and maintained at two locations. In this case, it will be easily understood that in this embodiment, one anchor body 1 can support concrete formwork K at two locations.

(Second Embodiment) In the second embodiment shown in FIG. The half part is pressurized into a flat shape, and the connecting fitting 3 is attached to the side wall part 7 on the proximal end side 6,
7 are brought close to each other and formed to have a narrow width to form a connecting pin 5.
It has a pin-connected structure.

(Third Embodiment) In the third embodiment shown in FIG. 6, the upper end side of the anchor body 1 of the anchor body portion A formed of a round bar material is extended upward to form a long male threaded portion. After forming a pin hole 4 in the abdomen and fitting the hexagonal threaded tube member 2 described in the first embodiment, the extension portion B is inserted into the male threaded portion 11 projecting upward from the tube member 2. It has a structure in which a hexagonal cylindrical shaft body 2a is screwed into the shaft body 2a.

The embodiments shown in FIGS. 7 and 8 are further different embodiments, and the embodiment shown in FIG. 7 is different from the anchor body part in the second embodiment shown in FIG. Connecting fittings 3 in A and extension part B,
3 shows a structure in which the connecting fittings 3, 3 are formed such that the facing distance between the opposing side wall portions 7, 7 is narrow. In addition, in the embodiment shown in FIG. 8, two upper end portions of the anchor body 1 of the anchor body portion A are formed into a pressurized flat shape, and the upper portion thereof is further extended in a non-pressurized state to extend the upper end. It has a structure in which a male threaded portion 11 is formed in a portion thereof, and connecting fittings 3, 3 with narrow side wall spacing similar to that shown in the embodiment shown in FIG. 7 are connected to each other with a pin. However, it will be easily understood that the connecting fittings 3, 3 in this case may be the connecting fittings 3, 3 with wide spacing shown in FIG. 5.

In each of the above embodiments, a structure is shown in which two connecting fittings 3 are used, but in the embodiments shown in FIGS. 1 to 3, and the embodiments shown in FIGS. 6 and 8, each The hexagonal cylinder shaft body 2a of the extension part B
Further, another extension part B can be additionally connected to the upper female screw part 10a.

Materials used to implement this invention include iron, steel,
Stainless steel is preferred, but other metal materials may also be used.

Although the embodiments considered to be representative of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments. It can be implemented with appropriate modifications within the scope of achieving the following effects.

<Effects of the invention> As is already clear from the above explanation, the invention has the following effects:
Since it has a structure in which one or more extension parts B are removably screwed and connected to one anchor main body part A, the direction of the connecting fittings of the extension part B can be freely changed to the desired direction. We have come to expect the remarkable practical effect of being able to maintain the posture of concrete formwork in an extremely safe, efficient, and economical manner. In addition, after the anchor body part A is inserted into the concrete, the extension part B is
Alternatively, it has the remarkable effect that it can be increased as needed even after curing.

[Brief explanation of drawings]

In the drawings, Fig. 1 is an overall side view showing one embodiment of the present invention, Fig. 2 is an exploded perspective view of its main parts, and Fig. 3 is a state in which the attitude of the extension part with respect to the anchor body has been changed. FIG. 4 is a side view showing the state of use; FIG. 5 is an exploded perspective view of the main parts showing another embodiment; FIG. 6 is an exploded side view of the main parts showing another embodiment. FIGS. 7 and 8 are exploded perspective views of essential parts showing still other embodiments, respectively. In the figure, 1 is the anchor body, 2 is the upper end side, 2a is the shaft body, 3 is the connecting fitting, 4 and 4a are the pin insertion holes, and 5
is a connecting pin, 6 is a base end side, 7 is a side wall part, 8, 8
a is the pin hole, 9 is the bottom, 10 is the female thread, 11 is the male thread, 21 is the intermediate connecting member, A is the anchor body, B
indicates an extension part, C indicates concrete, and D indicates a connecting structure part.

Claims (1)

[Scope of Claim for Utility Model Registration] a. An anchor body 1 which is inserted and buried in poured concrete C having a connecting pin insertion hole 4 formed in the upper end side 2, side walls 7, 7 facing each other, and a bottom part 9. A pin hole 8 for connecting the intermediate connecting member 21 is formed on the free end side of the side wall portions 7, 7.
Pin hole 8a for connection to anchor body 1 on base end side 6
An anchor body consisting of a connecting fitting 3 in which a connecting fitting 3 is formed, and a connecting pin 5 that swingably supports the connecting fitting 3 in a pin insertion hole 4 of the anchor body 1 via a connecting pin hole 8a. It consists of a short shaft body 2a in which a pin insertion hole 4a for insertion of a connecting pin is formed in the body part, side walls 7, 7 and a bottom part 9 that face each other, and the side walls 7, 7 are The connecting fitting 3 has a pin hole 8 for connecting the intermediate connecting member 21 on the free end side and a pin hole 8a for connecting to the anchor body 1 on the proximal end side 6, and the connecting fitting 3 is used for connecting the connecting fitting 3. an extension part B consisting of a connecting pin 5 swingably supported in the pin insertion hole 4a of the short shaft body 2a through the pin hole 8a; An anchor for maintaining the posture of a concrete formwork, comprising: a connecting structure part D consisting of male and female screw structures 10 and 11 that are freely screwed together; An anchor for maintaining the posture of a concrete formwork according to claim 1, wherein the upper end side 2 of the anchor body 1 is formed by connecting a hexagonal member to the upper end of a round bar. An anchor for maintaining the posture of a concrete formwork according to claim 1, wherein the upper end side 2 of the anchor body 1 is formed by pressing the upper end of a round bar into a flattened shape. An anchor for maintaining the posture of a concrete formwork according to claim 1, wherein the short shaft body 2a is a hexagonal cylindrical member. An anchor for maintaining the posture of a concrete formwork according to claim 1, wherein the short shaft body 2a is a round bar material formed into a flattened shape under pressure.