JPS6345478Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a method of constructing a concrete structure that spans between formworks assembled in opposing positions at intervals corresponding to the wall thickness of the concrete structure into which the side walls of a building are to be poured. This is the end connection structure of the concrete separator that tensilely supports the opposing formwork against the lateral pressure load during concrete pouring. A flat plate-like joint member for constructing a concrete separator that can be fixed; an intermediate bar for constructing a concrete separator that can be joined via a pin to a connecting portion formed at an end of the joint member inside the form; and an intermediate bar for constructing a concrete separator; The outside of the concrete separator is placed in such a manner that the large-diameter opening periphery of the conical or nearly conical peripheral wall is in contact with the inner surface of the concrete formwork so as to form a recess for antirust treatment for the end of the concrete separator on the concrete surface. The present invention relates to an end connection structure for a concrete separator comprising a truncated conical or substantially conical end treatment member that is fitted and held.

As shown in FIG. 9, this type of connection structure that has been commonly used is a flat plate joint member that is inserted and fixed between overlapping peripheral plates 01a and 01a of concrete formworks 01 and 01. 02 is passed through a hole formed in the bottom wall part 04C of the end treatment member 04 and extends to the inside of the casting space, and a connecting part 05 formed in the end of the intermediate bar 05 is attached to the extending end.
A connecting portion 02A corresponding to A is integrally formed, and both the connecting portions 02A and 05A are joined via a pin 03 on the inside of the end processing member 04. After concrete is poured, the joint member will be positioned across the recess formed by the end treatment member 04, penetrating both inside and outside, so the surface of the poured concrete can be used as a separator by filling the recess with mortar, etc. In order to post-process the joint member on the entire surface, including the parts, in an aesthetically pleasing manner so that the edges of the separator are not exposed on the finished surface, the joint member must be placed in the part located in the recess (as indicated by the arrow a in Fig. 9). ), which is difficult and troublesome, and overall the workability of post-processing is very poor.

In view of these circumstances, the present invention has been developed to provide a concrete separator that can be easily and quickly post-processed without requiring the above-mentioned break-off work, by making extremely simple improvements to the joint members and intermediate bars for constructing the concrete separator. The purpose is to provide an end connection structure.

The end connection structure of a concrete separator according to the present invention devised to achieve the above object includes an end connection part of the joint member constituting the concrete separator and a corresponding end connection part of the intermediate bar. and are configured such that they can be freely joined and separated via the pin in the internal space of the end treatment member in the normally assembled state, and the following effects are expected. We were able to do this.

In other words, by setting the end joining position of the joint member and the intermediate bar that constitute the concrete separator via pins in the internal space of the end treatment member, the shape of the formwork after concrete pouring can be adjusted. The end connection between the joint member and the intermediate bar is released by pulling out the pin within the internal space through the large-diameter opening of the end treatment member that opens outward during disassembly. death,
That is, both members for configuring the separator can be joined and separated, and by such operation and separation, the edge of the concrete separator portion to be buried in the poured concrete is formed into the recess formed by the end treatment member. By filling the recess with mortar or the like, post-processing can be performed to give the desired appearance.

Therefore, by making an extremely simple improvement that only allows the joint members and the intermediate bar end connections for constituting the concrete separator to be joined within the internal space of the end treatment member, This eliminates the need for the breaking-off work that was conventionally necessary, making the entire post-processing process easier and more efficient.

Embodiments of the present invention will be described in detail below based on the drawings.

In Fig. 1, reference numeral 1 denotes an assembled formwork assembled in a state facing each other across a concrete casting space of a required thickness, in which a plurality of concrete formworks 1, 1 are placed between their peripheral plates 1a, 1a. It is constructed by stacking them in such a way that they overlap and come into contact with each other. Reference numeral 6 denotes a concrete separator which is spanned between the opposing assembly forms 1 and 1 at a required interval, and as shown in FIGS. A flat plate-shaped joint member 2 that is inserted between the overlapping peripheral plates 1a, 1a of adjacent concrete formworks 1, 1 and can be locked and fixed to the formworks 1, 1 via pins 7, and the formwork 1. , 1, a connection hole 2A formed at the inner end of the joint member 2.
and an intermediate bar 5 that can be joined to the base via pins 3. Reference numeral 4 denotes an end processing member having a circumferential wall portion 4A having a substantially oval shape in side view and a truncated conical shape in longitudinal section, and a bottom wall portion 4C at the small diameter side end. It is integrally formed by molding, and is used by being fitted and held on the concrete separator 6 with its large diameter side opening periphery 4a in contact with the inner surfaces 1b, 1b of the concrete forms 1, 1, so that it can be used on the concrete surface to be poured. This is to form a recess for rust prevention treatment at the end of the concrete separator.

The concrete separator end connection structure constructed from a combination of the above-mentioned components will be explained below. When the joint member 2 is locked and fixed to the formworks 1 through the pins 7, The end connection hole 2A is configured to have a length such that it protrudes into the internal space 4B of the end treatment member 4, and the intermediate bar 5
has a gutter-like shape when viewed in the longitudinal direction, and has strip plate pieces 5 extending outward from the upper ends of the opposing plate parts 5a, 5a, respectively.
b, 5b are integrally bent and protruded, and the joint member 2 is provided at the longitudinal end.
A connecting hole portion 5A corresponding to the side connecting hole portion 2A is formed to penetrate through the opposing plate portions 5a, 5a, and is located at the center position in the width direction of the bottom wall portion 4C of the end treatment member 4. On the other hand, an insertion hole 4D for the intermediate bar 5 is formed at a position slightly displaced to one side. The end connecting portion 5A of the intermediate bar 5 is inserted into the internal space 4B of the end processing member 4 through the hole 4D in the normally assembled state.
By inserting the pin 3 from the wide side in the internal space 4B between the end connecting portion 2A of the joint member 2 and the end connecting portion 2A of the joint member 2, the intermediate bar 5 and the joint member 2 can be freely joined and separated. They are connected to form an end structure.

Note that the end connection hole 2A of the joint member 2
is configured to have a width that allows it to be inserted and fitted between the opposing plate portions 5a, 5a of the intermediate bar 5, and this joint member 2
As shown in the figure, the connecting hole portion 2A is formed by folding one end portion of a sheet of strip material into an annular shape and crimping the folded free end portion, and the plate surface portion close to the connecting hole portion 2A. By hammering out the formwork 1 in a tongue shape at an almost right angle, the formwork 1 is
A positioning piece 2B that comes into contact with the inner surface 1b is provided.

Another embodiment will be described below.

[] What is shown in FIGS. 6 and 7 is a connection structure with the joint member 2 when the intermediate bar 5 has a narrower spacing between its opposing plate portions 5a and 5a than that of the above embodiment. In this case, a notch 2C is formed on the end connecting portion 2A side of the joint member 2, which can be inserted into the end connecting portion 5A of the intermediate bar 5 in an externally fitting state.

[] What is shown in FIG. 8 is a modification of the joint member 2.
The overlapping peripheral plate 1 of the adjacent concrete formworks 1, 1 is placed at the end opposite to the connecting portion 2A.
When the formwork 1 is sandwiched between a and 1a,
A male screw member 8 protruding outward from the concrete formwork 1, 1 is fixed and connected so that its axis is located on the center line of the thickness of the joint member 2.
By screwing and tightening the wing nut 10 into the external threaded member 8 that protrudes outward through the support fitting 9 having the notch groove 9A that engages with the outer edge of the overlapping peripheral plates 1a, 1a, the joint can be secured. Part 2,
The pin 7 shown in the above embodiment is configured so that it can be fixed to the formworks 1, 1 without using it.

[] Although not shown, the end treatment member 4 may be formed into a complete truncated conical shape, or the member 4 may be divided into a plurality of pieces in the circumferential direction so that they can be assembled and disassembled. good.

[Brief explanation of drawings]

Fig. 1 is a schematic longitudinal sectional front view showing the assembled state of the entire formwork, and Figs. 2 to 4 are enlarged longitudinal sectional front views of important parts and sectional views taken along the line in Fig. 2 and the line in Fig. 3, respectively. , FIG. 5 is an enlarged perspective view of the joint member,
6 and 7 show another embodiment, FIG. 6 is an enlarged sectional front view of the main part, FIG. 7 is a sectional view taken along the line of FIG. 6, and FIG. 8 is also another embodiment. FIG. 9 is an enlarged longitudinal sectional front view of essential parts showing a conventional example. 1... Concrete formwork, 1a... Peripheral board, 2
...Joint member, 2A... End connection part, 3...
...Pin, 4...End treatment member, 4A...Conical peripheral wall part, 4B...Inner space, 4C...Bottom wall part, 4D
... Bar insertion hole, 5 ... Intermediate bar, 5A ... End connection part.

Claims (1)

[Scope of utility model registration request] Overlapping peripheral plate 1 of adjacent concrete formwork 1, 1
A flat plate joint member 2 for configuring a concrete separator that can be fixed in a sandwiched state between a and 1a
and an intermediate bar 5 for constructing a concrete separator that can be joined via a pin 3 to a connecting part 2A formed at the end of the joint member 2 inside the formworks 1, 1, and a concrete separator on the surface of the poured concrete. A conical or nearly conical peripheral wall portion 4A to form a recess for antirust treatment at the end.
An end treatment member 4 having a bottomed truncated conical shape or a substantially conical shape is externally held on the concrete separator with the large-diameter opening periphery 4a of the concrete formwork 1 in contact with the inner surfaces 1b of the concrete forms 1, 1. An end connection structure for a concrete separator consisting of a concrete separator, in which an end connection part 2A of the joint member 2 constituting the concrete separator and a corresponding end connection part 5A of the intermediate bar 5 are connected in a regular manner. 1. An end connection structure for a concrete separator, characterized in that the end connection structure of a concrete separator is configured such that it can be freely joined and separated via the pin 3 within the internal space 4B of the end treatment member 4 in an assembled state.