JP7481190B2 - Anchor Ruler - Google Patents

Description

This invention relates to an anchor ruler.

Buildings such as houses are installed on the ground via foundations. Such foundations have at least a rising part for supporting the building at a position higher than the ground. Anchor bolts for fixing the building to the foundation are buried in this rising part.

The rising part of the foundation is formed by pouring concrete inside the formwork. The anchor bolts are placed inside the formwork and embedded integrally with the rising part by pouring concrete inside the formwork.

An anchor ruler is used to embed the anchor bolts in the correct position relative to the rising section. The anchor ruler is installed on top of the formwork.

In this case, the formwork has an outer formwork and an inner formwork, and the conventional anchor ruler has a double-line shape with two parallel line parts that are installed simultaneously across the top of both the outer formwork and the inner formwork (for both the outer formwork and the inner formwork) (for example, see Patent Documents 1 to 3).

JP 2018-048449 A JP 2007-186859 A JP 2004-360411 A

However, when the anchor ruler is made into a multi-line shape, the distance between the two lines of the multi-line anchor ruler is fixed, so the distance between the outer and inner formworks where the multi-line anchor ruler can be installed is limited to one type, which creates a problem in that it cannot be used, for example, when making a rising part that has a width dimension different from the distance between the two lines. In other words, the multi-line anchor ruler has no versatility.

Therefore, the main purpose of the present invention is to contribute to improving the above-mentioned problems.

In response to the above problems, the present invention provides:
An anchor ruler having a ruler body that is installed on an upper portion of a formwork that forms a rising portion of a foundation and determines the position of an anchor bolt to be embedded in the rising portion,
The formwork includes an outer formwork and an inner formwork,
The ruler body has a single-line shape that is installed along the upper portion of the outer formwork ,
A connecting metal fitting is provided to connect the ruler bodies together,
The connecting fitting is characterized by having a width dimension that matches the width dimension of the upper part of the outer formwork .

According to the present invention, the above-mentioned configuration allows for a wide range of use in cases where rising parts of different widths are to be made. Also, a connecting metal fitting is provided to connect the ruler bodies together, and the connecting metal fitting has a width dimension that matches the width dimension of the upper part of the outer formwork. This allows the ruler bodies to be easily installed over the entire upper part of the outer formwork so that they are continuous along the upper part of the outer formwork by connecting the ruler bodies together using the connecting metal fittings.

FIG. 1 is a perspective view showing a building placed on a foundation. 2A is a plan view of the foundation (mat foundation) of FIG. 1, and FIG. 2B is a vertical cross-sectional view of the mat foundation of FIG. FIG. 2 is a perspective view of a building unit that constitutes a building (unit building). FIG. 3( a ) is a plan view showing the state in which various ruler bodies constituting the anchor ruler of this embodiment are installed on the upper part of the formwork (outer formwork) for forming the rising part of the foundation in FIG. This is a partially enlarged oblique view showing the state in which an anchor ruler is installed on the top of the outer form (only) for an outer form and an inner form installed parallel to each other with a gap between them. FIG. 6 is a side view of FIG. 5 . FIG. 2 is a partially enlarged perspective view showing the state in which the formwork is installed on the ground. 1A, 1B, and 1C are diagrams showing several types of ruler bodies (straight rulers) with different lengths. 1 is a partially enlarged perspective view showing a state in which an anchor bolt is held by an anchor plate on an outer form and a ruler body, in which (a) shows a process of installing the anchor plate holding the anchor bolt on the ruler body and the outer form, (b) shows a process of positioning and fixing the anchor plate and the ruler body with a fixing wedge, and (c) shows a process of finally fixing the anchor plate to the ruler body and the outer form with a fixing device. 1 is a component diagram of an anchor plate, in which (a) is a plan view, (b) is a side view, and (c) is a front view. 1A and 1B are part views of a fixing wedge, in which (a) is a side view and (b) is an end view. FIG. 1A is a partially enlarged perspective view showing an anchor ruler (corner ruler) installed on the upper part of the outer formwork that forms the corner portion of the rising portion, and FIG. 1B is a partially enlarged perspective view showing a state in which each side portion is engaged and held to the upper part of the outer formwork by connecting fittings near the corner portions of the anchor ruler (corner ruler). 1 is a diagram showing a number of different types of ruler bodies (corner rulers) for different installation locations, in which (a) is for outside corners and (b) is for inside corners. The figures show the steps of connecting ruler bodies together, in which (a) is the process of arranging the ruler bodies on the top of the outer formwork, (b) is the process of overlapping the ruler bodies, and (c) is the process of attaching connecting fittings to the overlapping parts. 1A is a part diagram of a narrow-width (e.g., 45 mm) connecting fitting, in which (a) is a plan view, (b) is a side view, and (c) is an end view. 1A is a part diagram of a wide-width (e.g., 50 mm) connecting fitting, in which (a) is a plan view, (b) is a side view, and (c) is an end view. 11A to 11C are part diagrams of another embodiment of a narrow width (e.g., 45 mm) connecting fitting, in which (a) is a plan view, (b) is a side view, and (c) is an end view. 11A is a part diagram of another embodiment of a connecting fitting for a wide width (for example, 50 mm), in which (a) is a plan view, (b) is a side view, and (c) is an end view. FIG. 6 is a partially enlarged perspective view similar to FIG. 5 of a ruler body having a double-line shape according to a comparative example. 6, showing the state of use of the ruler body of the comparative example having the double-line shape of Fig. 17. Of these, (a) shows the case where it is used for a formwork arranged with the same width as the ruler body having the double-line shape, (b) shows the case where it is used for a formwork arranged with a width wider than the ruler body, and (c) shows the case where it is used for a formwork in which a heat insulating material is set.

Hereinafter, the present embodiment will be described in detail with reference to the drawings.
1 to 18 are intended to explain this embodiment.

<Configuration> The configuration of this embodiment is explained below.

As shown in Figure 1, a building 1 such as a house is placed on the ground 2 via a foundation 3. Such a foundation 3 has at least a rising portion 4 for supporting the building 1 at a position higher than the ground 2. Anchor bolts 5 (Figure 2) for fixing the building 1 to the foundation 3 are buried in the rising portion 4.

Here, the building 1 may be of any structure, but in this embodiment, it is a unit building. A unit building is a building 1 that can be constructed in a short period of time by transporting building units 6 manufactured in advance at a factory to a construction site and assembling them on foundations 3 at the construction site. The building units 6 are approximately rectangular parallelepiped in shape and can be combined horizontally and vertically as appropriate. It is preferable to use building units 6 of the same size, but it is also possible to use a combination of building units of different sizes. In this embodiment, the building 1 is made up of four building units 6 of the same size arranged in the short side direction of the building units 6. However, the arrangement and number of building units 6 installed in the building 1 are not limited to this.

There are both steel-framed and wood-based building units 6, but as shown in Figure 3, the steel-framed building unit 6 has a box-framed unit frame in its framework, with the upper ends of four columns 7 connected in a rectangular shape by four ceiling beams 8, and the lower ends of the four columns 7 connected in a rectangular shape by four floor beams 9.

The ground 2 is the site on which the building 1 is constructed. As shown in FIG. 2, the foundation 3 may be a mat foundation having a rising part 4 (periphery rising part) that extends along the periphery of the building 1 and a slab part 11 that is provided to cover the ground 2 inside the rising part 4, or a strip foundation having only the rising part 4 and no slab part 11. In this embodiment, a mat foundation is used. The mat foundation in this embodiment has a simple structure, for example, a peripheral rising part and a slab part 11, and no other rising part 4 (inner rising part) inside the peripheral rising part. Concrete or steel beam members 12a and 12b are appropriately installed on the slab part 11 on the inside of the peripheral rising part to support the floor beams 9 of the building unit 6 from below. However, an inner rising part may be provided integrally with the slab part 11 inside the peripheral rising part and the slab part 11.

The rising portion 4 is a vertical frame portion for supporting the building 1 at a position higher than the ground 2. The rising portion 4 has a required width and is provided so as to extend continuously. The upper end surface (top) of the rising portion 4 is formed horizontally. In this embodiment, the rising portion 4 is a peripheral rising portion that is provided continuously along the perimeter of the building 1.

The anchor bolt 5 is a bolt that extends in the vertical direction and protrudes upward from the upper end surface of the rising portion 4 to secure the lower part of the building 1. In the case of a unit building, the anchor bolt 5 secures the lower end of the column 7 of the building unit 6, the floor beam 9, etc. In this embodiment, the anchor bolt 5 is designed to secure the vicinity of the end of the floor beam 9 located near the column 7, etc.

The rising portion 4 of the foundation 3 is formed by pouring concrete 14 inside a formwork 13 as shown in Figure 4 (-6). The anchor bolts 5 are embedded integrally with the rising portion 4 by pouring concrete 14 inside the formwork 13, with the anchor bolts 5 already placed inside the formwork 13. If necessary, the part of the ground 2 where the foundation 3 is to be provided may be excavated to a required depth and basing concrete 2a or the like poured in advance (Figure 6).

Then, an anchor ruler 15 is used as necessary to embed the anchor bolt 5 in the correct position relative to the rising portion 4. The anchor ruler 15 is mainly composed of a ruler body 17 that is installed on the upper part 16 of the formwork 13 that forms the rising portion 4. The upper part 16 of the formwork 13 is a horizontal, flat surface of uniform width that extends in a band along the upper edge of the formwork 13. By installing the ruler body 17 on the upper part 16 of the formwork 13, the ruler body 17 indicates the correct position of the anchor bolt 5 to be embedded in the rising portion 4 (or determines the exact position). If the anchor ruler 15 is not used, the embedding position of the anchor bolt 5 must be measured with a tape measure one by one, which is time-consuming and can cause errors.

The anchor ruler 15 in this embodiment is not composed of only one ruler body 17, but is a set of multiple types of ruler bodies 17 and auxiliary members, as described below, as shown in an example in Figure 4, which are used in appropriate combinations according to the shape and size of the rising part 4 (for example, installed continuously along the upper part 16 of the formwork 13). The ruler body 17 and auxiliary members are formed by processing metal plates of a required thickness into the required shape. For convenience of explanation, a specific ruler body 17 may be referred to as the anchor ruler 15.

In addition to the basic configuration described above, this embodiment can have the following configuration:

(1) As shown in FIG.
The formwork 13 has an outer formwork 21 and an inner formwork 22 .
In the anchor ruler 15 of this embodiment, the ruler body 17 is a single-line shape that is installed along the upper portion 16 of the outer formwork 21.

The outer formwork 21 is a frame member of the formwork 13 that is installed at a position outside the rising portion 4, and is installed continuously along the position of the rising portion 4. The upper portion 16 of the outer formwork 21 is a flange portion or the like that extends from the upper edge of the outer formwork 21 to the opposite side to the inner formwork 22 (to the outside of the building 1), and is installed at a position higher than the upper end surface of the rising portion 4.

As shown in Figure 6 (Figure 7), the upper end portion of the outer formwork 21 is supported diagonally from the outside to the ground 2 by supporting fittings called supports 25. Multiple supports 25 are installed at required intervals along the outer formwork 21. In addition, the lower end portion of the outer formwork 21 is supported from below to the ground 2 at required intervals by supports called half-hanging width stop fittings 26 or the like.

The inner formwork 22 is a frame member of the formwork 13 that is installed at a position inside the rising portion 4, and is installed continuously along the position of the rising portion 4. The upper portion 16 of the inner formwork 22 is a flange portion or the like that protrudes from the upper edge of the inner formwork 22 to the opposite side from the outer formwork 21 (to the inside of the building 1), and is installed at a position higher than the upper end surface of the rising portion 4 and at approximately the same height as the upper portion 16 of the outer formwork 21. The inner formwork 22 is generally installed parallel to the outer formwork 21 with a distance equal to the width dimension 27 of the rising portion 4. In this case, the outer formwork 21 forms the outer surface of the rising portion 4, and the inner formwork 22 forms the inner surface of the rising portion 4. In this embodiment, the inner formwork 22 and the outer formwork 21 are installed at a distance wider than the width dimension 27 of the rising portion 4.

For example, when pouring the foundation 3 in one go (pouring the rising portion 4 and the slab portion 11 at the same time), the inner formwork 22 is installed in a state where the above-mentioned distance is maintained with respect to the outer formwork 21 by spacing setting members (separators) such as the upper separator 28a and the intermediate separator 28b, as shown in FIG. 7.

The upper separator 28a is provided between the upper parts of the outer formwork 21 and the inner formwork 22, and the intermediate separator 28b is provided between the middle part of the outer formwork 21 and the lower part of the inner formwork 22. Separators such as the upper separator 28a and the intermediate separator 28b are appropriately installed at positions between the multiple supports 25 provided along the outer formwork 21.

When the foundation 3 is a slab foundation, the inner formwork 22 is used such that its lower end is positioned at the same height as the lower end of the outer formwork 21. However, when the foundation 3 is a slab foundation, the inner formwork 22 is used such that its lower end is positioned higher than the lower end of the outer formwork 21 and at the same height as the upper surface of the slab portion 11 (Figure 6).

The single-line shape means that the main part (ruler part) of the ruler body 17, which serves as a ruler for determining the position of the anchor bolt 5, is in the form of a single line installed along (only) the upper part 16 of the outer formwork 21 (single-line ruler body).

In contrast, the double-line shape, as shown in the comparative example in Figure 17, is such that the ruler body 102 of the anchor ruler 101 (the ruler portion for determining the position of the anchor bolt 5) is in the form of two lines that are installed along the upper parts 16 of both the outer formwork 21 and the inner formwork 22 so as to span both the upper parts 16 of the outer formwork 21 and the inner formwork 22 (double-line ruler body).

The two line portions 103, 104 are connected to each other at a fixed interval by a connecting part 105 and integrated. It is also possible to separate the two line portions 103, 104 into separate parts rather than directly connecting them, and then connect them together at the construction site using a separate connecting part 105 so that the interval is fixed. In this case, a separate connecting part 105 is required in addition to the two separated line portions 103, 104, so the parts configuration is more complex than the integrated, multi-line ruler body 102, and the number of labor hours required for assembly at the construction site is also increased. It is also not possible to use it in a single-line shape. Furthermore, these double-line anchor rulers 101 are expensive and can only be used to create one type of rising part 4 with a predetermined, specified width dimension as shown in Figure 18(a) (for example, they cannot be used when the installation distance between the outer formwork 21 and the inner formwork 22 is wider than the specified width dimension as shown in Figures 18(b) and (c)), so they do not have the ability to accommodate widths, are not versatile, and are not easy to use, which is why they are not in widespread use at present.

In contrast, in the anchor ruler 15 of this embodiment, as shown in Figure 5, the ruler body 17 does not have any double track parts installed along the upper part 16 of the inner formwork 22, and is a single-line shape that has only a single track part (ruler part) installed along the upper part 16 of the outer formwork 21. In other words, the ruler body 17 of this embodiment has a simple structure in which the double track parts installed along the upper part 16 of the inner formwork 22 and the connecting parts between the double tracks are unnecessary and removed.

The single-line ruler body 17 includes, for example, the straight-line rulers 29a to 29c shown in Figures 8(a) to 8(c). The straight rulers 29a to 29c are long members that extend along the top 16 of the outer formwork 21 with a nearly constant width dimension w1 throughout. It is preferable to prepare multiple types (at least three types) of straight rulers 29a to 29c with the same basic width dimension w1 but different lengths.

In this embodiment, for convenience, the straight rulers 29a to 29c are arranged in order from shortest to longest. The shortest straight ruler 29a is approximately half the length of the longest straight ruler 29c. The remaining straight ruler 29b is slightly longer than the midpoint between straight rulers 29a and 29c. In the case of a unit building, for example, it is preferable to prepare at least three types of straight rulers 29a to 29c for each size of building unit 6. Note that the ruler body 17 may be designed to eliminate sharp corners by appropriately processing both ends and other parts with chamfers or rounded sections, as necessary.

(2) The ruler body 17, which has a single line shape, may have an anchor position determining portion 31 on one side edge on the inner formwork 22 side that determines the position where the anchor bolt 5 is to be installed.

Here, the ruler body 17 is provided with an anchor position determining section 31 as necessary. One or more anchor position determining sections 31 can be provided for the ruler body 17. Even if one or more anchor position determining sections 31 are provided, the anchor position determining section 31 does not have to be used if it is not necessary.

The anchor position determining portion 31 may be provided for all ruler bodies 17, but as in this embodiment, some ruler bodies 17 may have anchor position determining portions 31 and some ruler bodies 17 may not have anchor position determining portions 31. Whether or not to provide an anchor position determining portion 31 can be determined depending on the installation position of the ruler body 17 relative to the outer formwork 21.

In other words, the anchor position determining portion 31 is provided only on the ruler body 17 that is installed at a position where the anchor bolt 5 is buried, and the anchor position determining portion 31 may not be provided on the ruler body 17 that is installed at a position where the anchor bolt 5 is not buried.

In this embodiment, the straight ruler 29b of intermediate length has an anchor position determining portion 31 and is installed at the position where the anchor bolt 5 is buried. In the case of a unit building, the straight ruler 29b with the anchor position determining portion 31 is used at a position spanning between adjacent building units 6 (Figure 4). This straight ruler 29b has two anchor position determining portions 31, one for each building unit 6, spaced apart at the required intervals according to the buried positions of the anchor bolts 5 for each building unit 6.

The other straight rulers 29a, 29c do not have an anchor position determining portion 31 and are installed in positions where the anchor bolt 5 is not buried. The straight rulers 29a, 29c that do not have an anchor position determining portion 31 are used together with the straight ruler 29b that has an anchor position determining portion 31 to indirectly determine the support position of the anchor bolt 5.

The anchor position determining portion 31 may be of any shape, but in this embodiment, for example, it has a protruding portion 32 (protruding toward the inner formwork 22) partially provided on the edge of the ruler body 17 on the inner formwork 22 side. The protruding amount w2 of the protruding portion 32 is set to a length that does not reach the buried position of the anchor bolt 5. The edge on the inner formwork 22 side extends in the extension direction 33 of the outer formwork 21 and is one of the long sides of the ruler body 17 located inside the building 1 (one side edge). The protruding portion 32 is formed, for example, in a substantially rectangular shape when viewed from above or a substantially trapezoidal shape when viewed from above.

At the position of the protrusion 32, a notch 34 is formed on the edge of the ruler body 17 opposite the protrusion 32 as a reference (scale) for the installation position of the anchor bolt 5 relative to the extension direction 33 of the outer formwork 21. The opposite edge is another long side (other side edge) of the ruler body 17 (parallel to the edge on the inner formwork 22 side) that extends in the extension direction 33 of the outer formwork 21 and is located outside the building 1. A single or multiple similar notches 34 (scales) can be provided in parts (general parts) other than the anchor position determination part 31 on the edge of the ruler body 17 on the outer formwork 21 side, as necessary, in order to be able to determine various positions other than the installation position of the anchor bolt 5. In this embodiment, the notches 34 in the parts other than the anchor position determination part 31 are not particularly provided, but can be provided, for example, for the straight rulers 29a, 29c, etc., in order to accurately determine the installation positions of the straight rulers 29a, 29c. The cutout portion 34 is, for example, a V-cut portion.

The protruding portion 32 is provided with a positioning portion 36 (positioning hole or notch) that functions as a scale or mark to accurately determine the position of the anchor bolt 5 relative to the extension direction 33 and width direction 35 of the outer formwork 21. Note that the following explanation will be based on the extension direction 33 and width direction 35 of the outer formwork 21. The extension direction 33 of the outer formwork 21 and the width direction 35 of the outer formwork 21 respectively coincide with the extension direction 33 and width direction 35 of the straight rulers 29a to 29c when they are installed on the upper portion 16 of the outer formwork 21.

The positioning portion 36 may be any type, but in this embodiment, the positioning portion 36 is a hole-shaped combination of a round hole and a slit formed inside the protruding portion 32. The slit of the positioning portion 36 extends in the width direction 35. The slit of the positioning portion 36 is formed so that the end portion that is the outside of the building 1 is in the same position as the edge portion (one side edge portion) of the ruler body 17 (the general part = the part without the protruding portion 32) on the inner formwork 22 side with respect to the protruding portion 32. This makes it possible to use the one side edge portion of the ruler body 17 as a position reference. The end portion that is the inside of the building 1 in the slit of the positioning portion 36 is formed at a position that does not reach the tip of the protruding portion 32 (however, the slit may be opened on the tip side so that it reaches the tip of the protruding portion 32). The positioning portion 36 may be only a slit extending in the width direction 35. In this embodiment, the positioning portion 36 and the notch 34 are formed at approximately the same position in the extension direction 33, which is approximately the middle of the extension direction 33 of the protrusion 32, which is approximately rectangular or trapezoidal in plan view, and are formed to penetrate the ruler body 17 from top to bottom, while being approximately opposite each other in the width direction 35.

And, as shown in FIG. 9, a metal anchor plate 37 for holding the anchor bolt 5 and arranging it inside the formwork 13 is placed in contact with the protruding portion 32 constituting the anchor position determination portion 31 in the ruler body 17 as necessary. The anchor plate 37 constitutes a part of the set of the anchor ruler 15 as the above-mentioned auxiliary member. By constructing the anchor plate 37 separately from the ruler body 17, the ruler body 17 indirectly determines the buried position of the anchor bolt 5, and by simply replacing the anchor plate 37 with an appropriate one, it becomes possible to freely change or adjust, for example, the buried position of the anchor bolt 5 relative to the width direction 35 or extension direction 33 of the rising portion 4, change, for example, the number of anchor bolts 5 buried in one place, or use anchor bolts 5 with different diameter dimensions. In other words, it becomes possible to expand the versatility of the ruler body 17. Although the anchor plate 37 is very effective for installing the anchor bolt 5, it is not essential to use it. For example, it is possible to install the anchor bolt 5 using another means or tool, based on the position of the positioning portion 36 of the anchor position determining portion 31.

As shown in FIG. 10, the anchor plate 37 is a relatively narrow member whose width direction is the extension direction 33, and has a plate body 37a installed on the upper part 16 of the outer formwork 21, a first horizontal extension portion 37b extending from the plate body 37a toward the inner formwork 22, a vertical extension portion 37c extending downward from the tip of the first horizontal extension portion 37b, and a second horizontal extension portion 37d extending from the lower end of the vertical extension portion 37c toward the inner formwork 22. It is preferable to process and form a radiused portion in each part of the anchor plate 37 to eliminate sharp corners.

The plate body 37a abuts against the upper portion 16 of the outer formwork 21 with a width dimension in the width direction 35 that is approximately the same as or narrower than the width dimension w1 of the ruler body 17.

The first horizontal extension portion 37b, the vertical extension portion 37c, and the second horizontal extension portion 37d are portions that protrude further inward than the upper portion 16 of the outer formwork 21 toward the inside of the building 1, and form a bolt holding portion for holding the anchor bolt 5. The bolt holding portions (first horizontal extension portion 37b, vertical extension portion 37c, and second horizontal extension portion 37d) may be formed with a width (dimension in extension direction 33) narrower than the length of the plate body 37a in the extension direction 33, but in this embodiment, the bolt holding portions are formed with a width equal to the length of the plate body 37a in the extension direction 33. This allows the anchor plate 37 to have a simple shape, making it easier to mass-produce, and increases the strength of the bolt holding portions.

A notch 37e that matches the notch 34 of the protrusion 32 is provided on the edge of the plate body 37a opposite the bolt holding portion. The notch 37e is, for example, a V-cut portion having approximately the same shape and size as the notch 34. The notch 37e is provided, for example, in the center of the extension direction 33 of the plate body 37a so as to penetrate the plate body 37a from top to bottom.

Then, by aligning the notch 34 at the position of the protrusion 32 with the notch 37e of the plate body 37a and fixing the plate body 37a to the ruler body 17 and the upper part 16 of the outer formwork 21 using a vice or other fixing device 38 (Figure 9 (c)) so that it does not float up, the positions of the anchor plate 37 and the anchor bolt 5 in the extension direction 33 and width direction 35 of the outer formwork 21 are (finally) accurately determined. The vice or other fixing device 38 may be a general one, or it may be provided as a part of the set of the anchor ruler 15 as the auxiliary member described above.

The first horizontal extension 37b and the second horizontal extension 37d that form the bolt holding portion are formed with a step between the top and bottom by the vertical extension 37c. That is, the bolt holding portion has a step shape when viewed from the side. In this case, the first horizontal extension 37b is provided almost flush with the plate body 37a, and is formed to a length that is almost the same as or longer than the protrusion amount w2 of the protrusion 32 in the width direction 35, and does not reach the buried position of the anchor bolt 5. Note that since the plate body 37a and the first horizontal extension 37b are flush with each other, if the lengths in the extension direction 33 are made the same, they will be identical and indistinguishable, but by making the lengths in the extension direction 33 different, they can be clearly distinguished.

The second lateral extension 37d is installed at a position lower than the plate body 37a and the first lateral extension 37b, and higher than the upper end surface of the rising portion 4. The second lateral extension 37d is formed to a length that exceeds the buried position of the anchor bolt 5, and a bolt holding hole 37f for passing the anchor bolt 5 in the vertical direction is formed through it. The bolt holding hole 37f is formed to a size that just allows the anchor bolt 5 to be inserted (approximately the same diameter as the outer diameter of the anchor bolt 5). It is preferable that the center of the bolt holding hole 37f is formed at the same position in the extension direction 33 as the cutout portion 37e.

The anchor bolt 5 is then passed through the bolt retaining hole 37f formed in the second lateral extension portion 37d, and is retained in the second lateral extension portion 37d by clamping the upper and lower surfaces of the second lateral extension portion 37d from above and below with upper and lower nuts 39 (Figure 9(a)) screwed onto the anchor bolt 5.

Furthermore, a wedge mounting hole 37g for mounting a fixing wedge 41 (Fig. 11) is formed through the first horizontal extension portion 37b of the anchor plate 37. Then, by inserting the fixing wedge 41 from above between the wedge mounting hole 37g provided in the anchor plate 37 and the positioning portion 36 of the protruding portion 32 as shown in Fig. 9(b), the position of the anchor plate 37 in the width direction 35 and extension direction 33 relative to the anchor position determination portion 31 (and the outer formwork 21) of the ruler body 17 is accurately and reliably determined. The fixing wedge 41 constitutes part of the set of the anchor ruler 15 as the auxiliary member described above.

In this embodiment, the wedge mounting hole 37g is shaped as a combination of a round hole and a slit, similar to the positioning portion 36. In this case, it is preferable that the wedge mounting hole 37g has the same size and shape as the positioning portion 36, but the wedge mounting hole 37g can be slightly larger than the positioning portion 36. The slit of the wedge mounting hole 37g extends in the width direction 35, similar to the positioning portion 36. In this embodiment, the wedge mounting hole 37g is formed to a size (the same size as the positioning portion 36) that allows the fixing wedge 41 to fit in.

The wedge mounting holes 37g and the notches 37e (and the bolt retaining holes 37f) are formed at approximately the same positions in the extension direction 33 of the anchor plate 37, aligned approximately in a line in the width direction 35, and penetrating the anchor plate 37 from top to bottom.

As shown in Fig. 11, the fixing wedge 41 is made of a metal plate material in the shape of a short rectangular strip with a surface extending in the width direction 35 and the vertical direction (or a surface perpendicular to the extension direction 33), with a parallel portion 41a at the middle in the vertical direction, a head portion 41b at the top extending in the width direction 35, and an inclined portion 41c at the bottom where the edge on the outer formwork 21 side is cut obliquely so as to narrow at the bottom. The parallel portion 41a extends vertically with a width approximately equal to the length of the slit of the wedge mounting hole 37g, and the lower inclined portion 41c is guided to the end of the rear side (outside the building 1) of the positioning portion 36 of the protruding portion 32 to function as a wedge and adjust the position of the anchor plate 37 in the width direction 35, and the parallel portion 41a at the middle is guided to the rear part of the positioning portion 36 of the protruding portion 32 to stably hold the anchor plate 37 in the correct position. It is preferable to machine the fixing wedge 41 to have a rounded portion 41d at each part to eliminate sharp corners, and by providing a rounded portion 41d around the periphery of the inclined portion 41c (particularly the tip portion), it is possible to obtain the effect of making it easier to insert into the wedge mounting hole 37g.

Furthermore, as shown in FIG. 9, when the insulation material 42 is integrally installed on the inner surface side of the rising portion 4 (inside the building 1), a pressure retaining bracket 43 may be provided to press the side surface 42a (inner surface) of the insulation material 42 placed against the inner surface of the inner formwork 22 in the width direction 35 from the outer formwork 21 side toward the inner formwork 22 side.

The pressure retaining metal fitting 43 has at least a horizontal and flat retaining surface 43a and abutting surface 43b that extends downward from the edge of the retaining surface 43a on the insulating material 42 side and abuts and retains the side surface 42a of the insulating material 42.

The holding surface 43a is preferably interposed between the outer formwork 21 and the heat insulating material 42, with a length in the width direction 35 that is approximately the same as the width dimension 27 of the rising portion 4. A bolt hole 43c for passing the anchor bolt 5 is formed through the holding surface 43a, and by passing the anchor bolt 5 through the bolt hole 43c, the pressure holding fitting 43 holds the anchor bolt 5 and is held by the anchor bolt 5. The pressure holding fitting 43 may be fixed to the anchor bolt 5 by, for example, sandwiching the upper and lower surfaces of the holding surface 43a from above and below using upper and lower nuts 39 similar to those described above that are screwed into the anchor plate 37.

The pressure retaining metal fitting 43 may also have another surface portion that extends downward and is integral with the edge of the retaining surface 43a on the opposite side to the abutting surface 43b, and is held in contact with the inner surface of the outer formwork 21. Alternatively, the pressure retaining metal fitting 43 may be retained only by the anchor bolt 5, with the retaining surface 43a being shorter than the width dimension 27 of the rising portion 4.

(3) As shown in FIG. 12 , the single-linear ruler body 17 installed along the upper portion 16 of the outer formwork 21 forming the corner portion 51 of the rising portion 4 may be L-shaped in a plan view, having a first straight portion 53 and a second straight portion 54 perpendicular to the first straight portion 53, as shown in FIG. 13 .
A diagonal member 55 may be provided between the first straight portion 53 and the second straight portion 54 to connect the first straight portion 53 and the second straight portion 54 .

Here, the corner portion 51 of the rising portion 4 is formed at a corner portion of the building 1, etc. The corner portion 51 is usually formed at a right angle. The corner portion 51 can be an outside corner or an inside corner. An outside corner is a typical corner portion 51 that protrudes outward from the building 1, while an inside corner is a corner portion 51 that is recessed inward from the building 1. An inside corner is formed, for example, in a portion where building units 6 of different sizes are combined or where building units 6 are installed offset from one another.

The first straight section 53 is provided to extend along the upper portion 16 of one of the outer formwork frames 21 that are assembled at right angles to form the corner portion 51 of the rising portion 4, with a substantially constant width dimension w1.

The second straight portion 54 is provided so as to extend with a substantially constant width dimension w1 along the upper portion 16 of the other outer formwork 21 that forms the corner portion 51 of the rising portion 4. The second straight portion 54 is formed integrally with the first straight portion 53. The width dimension w1 of the first straight portion 53 and the second straight portion 54 is the same as the width dimension w1 of the straight rulers 29a to 29c.

At the corner (or bend) where the first straight portion 53 and the second straight portion 54 are connected, for example, a hole or the like may be provided that indicates the center position of the width of both the first straight portion 53 and the second straight portion 54.

The first straight portion 53 and the second straight portion 54 may be the same length, but in this embodiment, the first straight portion 53 and the second straight portion 54 are different lengths. The ruler body 17 installed on the upper portion 16 of the outer formwork 21 that forms the corner portion 51 can be used inverted (front to back, up to down, or left to right), so the first straight portion 53 and the second straight portion 54 are relative to each other, but for convenience, the long side is referred to as the first straight portion 53 and the short side is referred to as the second straight portion 54.

The diagonal member 55 is a reinforcing part that diagonally connects the middle part of the first straight part 53 and the middle part of the second straight part 54. The diagonal member 55 is formed integrally with the first straight part 53 and the second straight part 54. The diagonal member 55 is not used to directly determine the position of the anchor bolt 5, but is preferably provided as a reinforcing part that maintains the shape of the first straight part 53 and the second straight part 54. By providing the diagonal member 55, the ruler body 17 installed on the upper part 16 of the outer formwork 21 that forms the corner part 51 will no longer have a pure single-line shape. However, if the first straight part 53 and the second straight part 54, which are the ruler parts for determining the position of the anchor bolt 5, are single-line shaped, it can be said that the ruler body 17 is substantially single-line shaped even if the diagonal member 55 is present. The width dimension of the diagonal member 55 may be the same as the width dimension w1 of the first straight part 53 and the second straight part 54, or may be different.

The ruler body 17, consisting of the first straight section 53 and the second straight section 54, is made into metal corner rulers 52a, 52b with right-angled corners. At least two types of corner rulers 52a, 52b are available: one for outside corners (corner ruler 52a) as shown in Figure 13(a) and one for inside corners (corner ruler 52b) as shown in Figure 13(b).

The corner ruler 52a for protruding corners and the corner ruler 52b for recessed corners may have the same shape, but in this embodiment, the corner ruler 52a for protruding corners and the corner ruler 52b for recessed corners have different shapes. The corner ruler 52a for protruding corners has a shape in which the short side (second straight portion 54) is relatively long compared to the long side (first straight portion 53). The corner ruler 52b for recessed corners has a shape in which the short side (second straight portion 54) is relatively short compared to the long side (first straight portion 53).

The corner rulers 52a and 52b can also be provided with one or more anchor position determining portions 31 similar to those described above, as necessary. The anchor position determining portion 31 is provided on the edge portion (one side edge portion) on the inner formwork 22 side of one or both of the first straight portion 53 and the second straight portion 54. In general, the anchor bolts 5 are often provided in the corner portion 51 of the rising portion 4 or in its surrounding area, so the corner rulers 52a and 52b are likely to have the anchor position determining portion 31 provided in the right-angle corner portion or its surrounding area. Note that the anchor position determining portion 31 does not have to be used if it is provided but not required.

In terms of strength, it is preferable that the anchor position determining portion 31 is provided within the range of the triangular portion surrounded by the first straight portion 53, the second straight portion 54, and the diagonal member 55. For this reason, the diagonal member 55 is provided at a position (a position closer to the end than the anchor position determining portion 31) such that the anchor position determining portion 31 is included within the range of the above-mentioned triangular portion. As a result, when the corner rulers 52a, 52b are provided on the upper portion 16 of the outer formwork 21, there is a risk that the diagonal member 55 will partially cross the inner formwork 22. However, since the diagonal member 55 is a reinforcing portion and does not follow the inner formwork 22, even if it crosses the inner formwork 22, it will not affect the positioning of the inner formwork 22 relative to the outer formwork 21.

Specifically, in the corner ruler 52a for protruding corners, the anchor position determining portion 31 is formed at a position inside the triangle within the range of the triangular portion, so that the protruding portion 32 protrudes toward the inside of the triangle. In this embodiment, for the corner ruler 52a for protruding corners, the anchor position determining portion 31 is provided at one location on the first straight portion 53, and is not particularly provided on the second straight portion 54. However, the location and number of anchor position determining portions 31 provided for the corner ruler 52a for protruding corners are not limited to this.

In the case of the inside corner corner ruler 52b, the anchor position determining portion 31 is formed at a position outside the triangle within the range of the triangular portion, so that the protrusion 32 protrudes outside the triangle. In this embodiment, the anchor position determining portion 31 is not particularly provided for the inside corner corner ruler 52b, but if an anchor position determining portion 31 is provided, it may be provided in one place, for example, on the first straight portion 53. However, the installation location and number of anchor position determining portions 31 for the inside corner corner ruler 52b are not limited to this.

(4) As shown in FIG. 14, connecting fittings 61A and 61B are provided to connect multiple ruler bodies 17 together.
The connecting fittings 61A, 61B may have width dimensions 63a, 63b that match the width dimension 62 (FIG. 14(a)) of the upper portion 16 of the outer formwork 21, as shown in the embodiment of FIGS. 15A and 15B.

Here, the connecting fittings 61A and 61B constitute part of the anchor ruler 15 set as the auxiliary members described above.

The width dimensions 63a, 63b that match the width dimension 62 (FIG. 14(a)) of the upper portion 16 of the outer formwork 21 mean that the connecting fittings 61A, 61B have a width dimension that is approximately the same as the width dimension 62 of the upper portion 16 of the outer formwork 21. This allows the connecting fittings 61A, 61B to function as locking fittings in the width direction 35 for the upper portion 16 of the outer formwork 21.

Although not shown, there are already several types of outer formwork 21 with different standards for the width dimension 62 of the upper part 16. There are at least two types of width dimension 62 of the upper part 16 of the outer formwork 21: one that is relatively narrow (e.g., 45 mm) and one that is relatively wide (e.g., 50 mm).

For this reason, multiple types of connecting fittings 61A, 61B are prepared with approximately the same width dimensions 63a, 63b (or with different width dimensions 63a, 63b) to match the various width dimensions 62 of the upper portion 16 of the outer formwork 21.

For example, the connecting fittings 61A, 61B are provided with at least two different width dimensions 63a, 63b (width dimension 63a < width dimension 63b), such as a narrow width (e.g., 45 mm) width dimension 63a (connecting fitting 61A, Fig. 15A) and a wide width (e.g., 50 mm) width dimension 63b (connecting fitting 61B, Fig. 15B)). However, the type and width dimension 62 of the upper portion 16 of the outer formwork 21, and the type and width dimensions 63a, 63b of the connecting fittings 61A, 61B are not limited to those described above.

In this case, it is preferable that the ruler body 17 has the same width dimension w1 as the upper part 16 of the multiple types of outer formwork 21 with the smallest width dimension 62, or that the width dimension w1 is smaller than that. Then, the ruler body 17 is installed with the edge of the inner formwork 22 side of the upper part 16 of the outer formwork 21 aligned with the edge of the inner formwork 22 side of the ruler body 17, and the connecting fittings 61A, 61B with width dimensions 63a, 63b approximately the same as the width dimension 62 of the upper part 16 of the outer formwork 21 are attached. This makes it possible to install and use the ruler body 17 without any problems even for an outer formwork 21 in which the width dimension 62 of the upper part 16 of the outer formwork 21 is wider than the width dimension w1 of the ruler body 17.

In other words, when a ruler body 17 with a width dimension w1 that is the same as the width dimension 62 of the upper part 16 of the outer formwork 21 is installed (placed abutting from above) on the upper part 16 of the outer formwork 21, both side edges of the ruler body 17 are aligned with both side edges of the upper part 16 of the outer formwork 21. Then, by attaching connecting fittings 61A, 61B with width dimensions 63a, 63b that are the same as the width dimension 62 of the upper part 16 of the outer formwork 21, both side edges of the upper part 16 of the outer formwork 21 and the ruler body 17 are partially engaged and held in place in the width direction 35 by the connecting fittings 61A, 61B.

When the ruler body 17 with a width dimension w1 narrower than the width dimension 62 of the upper part 16 of the outer formwork 21 is installed (placed abutting from above) on the upper part 16 of the outer formwork 21, only the edge of the ruler body 17 on the inner formwork 22 side is aligned with the edge of the upper part 16 of the outer formwork 21 on the inner formwork 22 side, and the edges on the opposite sides are not aligned (the ruler body 17 is recessed into the inside of the building 1 relative to the upper part 16 of the outer formwork 21). Then, by attaching the connecting fittings 61A, 61B with the same width dimensions 63a, 63b as the upper part 16 of the outer formwork 21, the upper part 16 of the outer formwork 21 is partially retained at both side edges in the width direction 35 by the connecting fittings 61A, 61B, and the ruler body 17 is partially embraced by the connecting fittings 61A, 61B with the edges of the upper part 16 of the outer formwork 21 and the edges of the inner formwork 22 side aligned.

Therefore, in either case, the ruler body 17 is set correctly relative to the upper part 16 of the outer formwork 21, making it possible to accurately install the anchor bolt 5 in the buried position.

(5) Specifically, the connecting fittings 61A and 61B are
A connecting fitting body 61a is disposed in contact with the upper portion 16 of the outer formwork 21 and the ruler body 17;
It may also have locking portions 61b that extend downward from both side edges of the connecting fitting main body 61a (placed on the ruler main body 17) and lock the upper portion 16 of the outer formwork 21 in the width direction 35.
The ruler body 17 having a single line shape may have a width expansion portion 64 having a connecting hole 65 into which the locking portion 61b fits at or near both ends of one side edge on the inner formwork 22 side, as shown in Figure 14.

Here, the connecting fitting body 61a is a short piece of material with a horizontal and flat surface that is placed in contact with the general portion of the ruler body 17 and the width expansion portion 64. The connecting fitting body 61a has width dimensions 63a, 63b that are approximately the same as the width dimension 62 of the upper portion 16 of the outer formwork 21. The length of the connecting fitting body 61a in the extension direction 33 is approximately the same as or greater than the distance between the connecting holes 65.

The locking portion 61b may be formed integrally with the connecting fitting body 61a by bending or the like. This allows the locking portion 61b to have a planar shape that fits into the connecting hole 65 (the slit of the connecting hole 65, which will be described later). In this case, it is preferable to form the locking portion 61b with a width that is approximately the same as the length of the connecting hole 65 (the slit of the connecting fitting body 61a). The locking portion 61b may be a pin that is separate from the connecting fitting body 61a and is attached to the connecting fitting body 61a. It is preferable to form a tapered introduction taper portion 61c or the like at the tip (lower end) of the locking portion 61b so that it can easily enter the connecting hole 65. In addition, it is preferable to process and form a rounded portion in each part of the connecting fittings 61A and 61B to eliminate sharp corners, but in particular, by processing and forming a rounded portion 61d around the introduction taper portion 61c (especially the tip portion) to eliminate corners, it is possible to obtain the effect of making it easier to enter the connecting hole 65.

The locking parts 61b are provided in pairs in the width direction 35 so that when the connecting fitting body 61a is placed against the ruler body 17 or the width expansion part 64, they sandwich the upper part 16 of the outer formwork 21 from both sides in the width direction 35 to lock the upper part 16 of the outer formwork 21 in the width direction 35. This allows the connecting fittings 61A, 61B to function as locking fittings as described above. The pair of locking parts 61b (width dimensions 63a, 63b between the inner faces) are set to be approximately the same as the width dimension 62 of the upper part 16 of the outer formwork 21. The locking parts 61b are provided in the same positions as the connecting holes 65 and in the same number as the connecting holes 65 (two pairs, four in this embodiment) according to the number and arrangement of the connecting holes 65 (or the interval in the extension direction 33).

The pair of locking parts 61b may be of the same length, but may be of different lengths so as to be easily inserted into the connecting hole 65, as shown in other examples of the connecting fittings 61A and 61B in Figures 16A and 16B. That is, the locking part 61b on one side may be of a specified length, and the locking part 61b' on the other side may be made shorter or longer. As a result, for example, by inserting the relatively longer locking part (e.g., locking part 61b) into the connecting hole 65 first, the adjacent connecting fittings 61A and 61B are connected and integrated (a stable connection state is achieved), so that the relatively shorter locking part (e.g., locking part 61b') can be easily hooked onto the edge on the opposite side, making it easier to attach the connecting fittings 61A and 61B to the upper part 16 of the outer formwork 21 and lock them in the width direction 35, improving workability.

Meanwhile, the ruler body 17 is placed against the upper part 16 of the outer formwork 21, and is installed with the required amount of overlapping on the adjacent ruler body 17. The overlapping part between the ruler bodies 17 is provided with the above-mentioned widened portion 64, and a connecting hole 65 is formed through the widened portion 64. The widened portion 64 and the connecting hole 65 form a connection between the ruler bodies 17. This connection is made by using the connecting fittings 61A and 61B to connect them to each other.

The width expansion portion 64 is formed on the edge of the ruler body 17 on the side of the inner formwork 22 so as to partially protrude inward of the building 1. The width expansion portion 64 is formed, for example, in a substantially trapezoidal shape in plan view. The amount of protrusion w3 (FIG. 8 or FIG. 13) of the width expansion portion 64 in the width direction 35 relative to the ruler body 17 (general portion) may be substantially the same as the amount of protrusion w2 of the protruding portion 32 in the width direction 35, but since it is sufficient to form the connecting hole 65, it is preferable to make it smaller than the amount of protrusion w2.

The width expansion section 64 is mainly provided at both ends of the ruler body 17. A single or multiple width expansion sections 64 are provided at each end of the ruler body 17. When multiple width expansion sections 64 are provided at the ends of the ruler body 17, it is preferable to provide the width expansion sections 64 at a required distance from each other. This makes it possible to adjust and change the connection length between adjacent ruler bodies 17 by selecting and using one of the multiple width expansion sections 64. In this embodiment, the multiple width expansion sections 64 are provided on the first straight portion 53, which is the long side, of the corner rulers 52a and 52b (Figure 13). In addition, multiple width expansion sections 64 may be provided at each end of the straight rulers 29a to 29c (Figure 8), but in this embodiment, there is no particular provision and each is provided as a single one.

The connecting holes 65 of the width expansion parts 64 that are stacked vertically on adjacent ruler bodies 17 are provided in single or multiple positions that match each other vertically. In this embodiment, two connecting holes 65 are provided in each width expansion part 64 along the extension direction 33. In this embodiment, the two connecting holes 65 are formed at intervals that are approximately the same as or wider than the basic width dimension w1 of the ruler body 17. In addition, the connecting hole 65 is shaped as a combination of a round hole and a slit. The slit extends toward the extension direction 33 of the outer formwork 21. The slit is formed to be just large enough to fit the locking part 61b.

The connecting holes 65 are provided (side by side) at the base of the width expansion section 64 that is expanded toward the inner formwork 22, i.e., at a position on a line that is approximately along the edge of the ruler body 17 (the general part) on the inner formwork 22 side (inner side). As a result, when the connecting fittings 61A, 61B are installed at the position of the width expansion section 64, the locking parts 61b on the inner formwork 22 side of the connecting fittings 61A, 61B are inserted into the connecting holes 65, and the ends of adjacent ruler bodies 17 are connected and fixed to each other, and the edge of the ruler body 17 on the inner formwork 22 side is aligned with the edge of the upper part 16 of the outer formwork 21 on the inner formwork 22 side.

(6) The above is the configuration of this embodiment, but finally, to summarize the ruler body 17, the ruler body 17 is a member made of a flat metal plate having a required thickness, and is placed in contact with the upper part 16 of the outer formwork 21 from above. The ruler body 17 is mainly composed of a ruler portion that extends along the upper part 16 of the outer formwork 21 with a substantially uniform width dimension w1. The ruler body 17 has an edge portion (one side edge portion) on the inner formwork 22 side and an edge portion (other side edge portion) on the opposite side, and the edge portion on the inner formwork 22 side is installed in alignment with the upper part 16 of the outer formwork 21. On the edge portion on the inner formwork 22 side, a single or multiple partial width expansion portions 64 having connecting holes 65 as connecting portions are formed to protrude at or near both ends. The width expansion portion 64 and the connecting holes 65 are not provided on the opposite edge portion. In addition, a partial protrusion 32 having a positioning portion 36 as an anchor position determining portion 31 can be formed in one or more protruding portions on the edge portion on the inner formwork 22 side. The anchor position determining portion 31 is provided at a position (where the anchor bolt 5 is embedded) between both ends of the ruler body 17 or between the width expansion portions 64 near the ends so as not to interfere with the connection function of the width expansion portions 64 and the connecting holes 65. Then, in the edge portion on the opposite side of the ruler body 17, a single or multiple notches 34 are formed as necessary to serve as references for various positions. The notches 34 include those for accurately determining the embedded position of the anchor bolt 5. The notches 34 for accurately determining the embedded position of the anchor bolt 5 can be, for example, those for determining the position in the extension direction 33 of the anchor plate 37 (for holding the anchor bolt 5) installed on the ruler body 17.

The ruler body 17 includes straight rulers 29a to 29c (Figure 8) that are installed on the straight parts of the outer formwork 21, and corner rulers 52a, 52b (Figure 13) that are installed on the parts of the outer formwork 21 that are assembled at right angles.

Straight rulers 29a to 29c are long, strip-shaped members with ruler portions that extend almost straight. Straight rulers 29a to 29c do not have any portion that is installed along the upper portion 16 of inner formwork 22, but only have a portion that is installed along the upper portion 16 of outer formwork 21.

The corner rulers 52a and 52b are L-shaped members in plan view, with a ruler part bent at a right angle at the middle (or with a right-angled bend at the middle). Between the first straight part 53 and the second straight part 54 (at the middle part) that constitute the L shape of the corner rulers 52a and 52b, a diagonal member 55 may be integrally provided so as to connect diagonally. The diagonal member 55 is provided at a position that does not interfere with the function of the connection part (width expansion part 64 and connection hole 65) or the anchor position determination part 31. The diagonal member 55 is preferably provided at a position closer to the end than the anchor position determination part 31. The diagonal member 55 may partially intersect with the upper part 16 of the inner formwork 22, but does not extend along the upper part 16 of the inner formwork 22. Therefore, the corner rulers 52a and 52b have no part that is installed along the upper part 16 of the inner formwork 22, and only have a part that is installed along the upper part 16 of the outer formwork 21.

<Function> The function of this embodiment is explained below.

When pouring the foundation 3 with concrete 14 on the ground 2, the outer formwork 21 and the inner formwork 22 are erected parallel to each other with a required distance between them so that at least the rising portion 4 (peripheral rising portion) is formed to match the external shape of the building 1. In this case, the distance between the outer formwork 21 and the inner formwork 22 is generally set to the same as the width dimension 27 of the rising portion 4, but for example, if the insulating material 42 is provided integrally with the rising portion 4, the distance between them is set wider than the width dimension 27 of the rising portion 4 by the thickness of the insulating material 42.

After the outer formwork 21 and the inner formwork 22 are placed on the ground 2, multiple single-line ruler bodies 17 are then placed on the upper part 16 of the outer formwork 21 (only) so that they are continuous along the upper part 16 of the outer formwork 21 (Figure 5). Note that at least the ruler portion of the ruler body 17 is not placed on the upper part 16 of the inner formwork 22.

Then, adjacent ruler bodies 17 are connected and fixed to each other with connecting fittings 61A, 61B having width dimensions 63a, 63b that match the width dimension 62 of the upper part 16 of the outer formwork 21, and the ruler bodies 17 are partially held or engaged in the width direction 35 to the upper part 16 of the outer formwork 21 by the connecting fittings 61A, 61B (Figure 14).

At this time, the straight rulers 29a to 29c are installed on the outer formwork 21 that forms the straight portion of the rising portion 4, and the corner rulers 52a and 52b are installed on the outer formwork 21 that forms the corner portion 51 (Figure 12 (a)). In order to accurately attach the ruler body 17 to the upper part 16 of the outer formwork 21, it is preferable to first install the corner rulers 52a and 52b, and then connect the straight rulers 29a to 29c to the corner rulers 52a and 52b. The corner rulers 52a and 52b are accurately installed on the upper part 16 of the outer formwork 21, using a water line or the like attached to the ground 2 as a reference. At this time, the ruler body 17 is aligned on the inside of the outer formwork 21. In other words, the positions of the edges of the ruler body 17 and the outer formwork 21 on the inner formwork 22 side are aligned in the width direction 35.

The corner rulers 52a, 52b and the straight rulers 29a to 29c, and the straight rulers 29a to 29c are connected to each other by simultaneously inserting the locking parts 61b located on the inside of the connecting fittings 61A, 61B into the connecting holes 65 of the overlapping width expansion parts 64 with the width expansion parts 64 stacked vertically. As a result, as described above, the locking parts 61b located on the outside of the connecting fittings 61A, 61B are locked to the outer edge of the upper part 16 of the outer formwork 21, and the locking parts 61b located on the inside of the connecting fittings 61A, 61B are locked to the inner edge of the upper part 16 of the outer formwork 21, so that the ruler body 17 is locked and held in the width direction 35 with the insides facing each other relative to the upper part 16 of the outer formwork 21. In this case, of the multiple types of connecting fittings 61A and 61B available, those with width dimensions 63a and 63b that match the width dimension 62 of the upper portion 16 of the outer formwork 21 are used.

The connecting fittings 61A, 61B can also be installed in positions where there are no width expansion sections 64 or anchor position determination sections 31, and can be used to partially hold or engage each section of the ruler body 17 in the width direction 35 relative to the upper section 16 of the outer formwork 21. For example, as shown in FIG. 12(b), by attaching the connecting fittings 61A, 61B to the outer formwork 21 installed in the corner section 51 so as to straddle both side sections near the corners of the corner rulers 52a, 52b (corner ruler 52a in this case) in the width direction 35, the corner rulers 52a, 52b are accurately held or engaged in two orthogonal directions.

The corner rulers 52a, 52b and straight rulers 29a to 29c may be temporarily or permanently fixed to the upper part 16 of the outer formwork 21 as appropriate using a fixing device 38 (Figure 9 (c)) such as a vice before or after they are engaged and held in the width direction 35, except for the width expansion part 64 and the anchor position determination part 31.

Then, as shown in FIG. 9, the anchor plate 37 with the anchor bolt 5 attached is attached to the anchor position determining portion 31 of the ruler body 17.

At this time, first, the anchor bolt 5 is inserted into the bolt holding hole 37f of the anchor plate 37, and the upper and lower surfaces of the second lateral extension portion 37d are sandwiched between the upper and lower nuts 39 screwed onto the anchor plate 37, and the anchor bolt 5 is attached to the anchor plate 37. The amount of screwing of the nuts 39 is adjusted so that the amount of protrusion of the upper end of the anchor bolt 5 from the upper nut 39 of the anchor plate 37 is a predetermined value.

Next, as shown in FIG. 9(a), an anchor plate 37 is placed on the anchor position determining portion 31 of the ruler body 17, and the notch 34 provided on the opposite side of the protrusion 32 is matched with the notch 37e provided in the plate body 37a of the anchor plate 37, thereby roughly positioning the anchor plate 37 and the anchor bolt 5 in the extension direction 33 relative to the ruler body 17.

Then, as shown in FIG. 9(b), a fixing wedge 41 is inserted from above between the wedge mounting hole 37g provided in the anchor plate 37 and the positioning portion 36 provided in the protruding portion 32 of the anchor position determination portion 31 of the ruler body 17, thereby more accurately determining (positioning and provisionally fixing) the positions of the anchor plate 37 and the anchor bolt 5 in the width direction 35 and extension direction 33.

Finally, as shown in FIG. 9(c), a fixing device 38 such as a vice is used to firmly and securely fix the anchor plate 37 and the ruler body 17 to the outer formwork 21 so that they do not move.

When installing the insulation material 42 integrally with the rising portion 4, a pressure retaining metal fitting 43 is attached to the anchor bolt 5, and the side surface 42a of the insulation material 42 installed on the inner surface of the inner formwork 22 is pressed in the width direction 35 by the abutting surface 43b of the pressure retaining metal fitting 43.

In this state, concrete 14 is poured between the outer formwork 21 and the inner formwork 22 to form the rising portion 4. As a result, the anchor bolts 5 are installed in the correct position while embedded in the rising portion 4. Furthermore, if insulation material 42 is installed on the inner surface of the inner formwork 22, the insulation material 42 is installed integrally with the rising portion 4 on the inside of the rising portion 4. The concrete 14 is filled up to a position approximately at the height of the upper surface of the insulation material 42.

<Effects> This embodiment provides the following effects:

(Effects 1) In the anchor ruler 15, the ruler body 17 (the ruler portion for determining the position of the anchor bolt 5) may be a single-line shape installed along (only) the upper part 16 of the outer formwork 21. This allows the structure of the ruler body 17 to be significantly simplified compared to existing double-line shapes (e.g., FIG. 17), reducing the amount of steel used for the ruler body 17 and reducing the amount of processing required for the ruler body 17, thereby reducing costs. Simplifying the structure of the ruler body 17 minimizes the functions, and significantly reduces the amount of adjustment work required when constructing the rising part 4 (when pouring the concrete 14).

In addition, by making the ruler body 17 a single line shape, the ruler body 17 is not affected by the distance between the outer formwork 21 and the inner formwork 22 (for example, the width of the rising portion 4), and can therefore be widely used when forming a variety of rising portions 4 with different width dimensions 27 (width adaptability), and can also be flexibly adapted to cases such as the integral construction of the rising portion 4 and the insulation material 42 (versatility). In other words, the single line shape ruler body 17 can always be used regardless of the width dimension 27 of the rising portion 4, etc.

Therefore, the single-wire anchor ruler 15 is less expensive than the double-wire one, has high width compatibility and versatility, and is easy to use, so it is expected to become more widespread in the future.

(Effect 2) The ruler body 17 having a single line shape may have an anchor position determining portion 31 on one side edge portion on the inner formwork 22 side that determines the installation position of the anchor bolt 5. In this way, by using the anchor position determining portion 31 provided on one side edge portion on the inner formwork 22 side of the ruler body 17 having a single line shape, the position for installing the anchor bolt 5 between the outer formwork 21 and the inner formwork 22 can be easily and accurately determined.

(Effect 3) In the anchor ruler 15, the ruler body 17 installed in the corner portion 51 of the rising portion 4 may be an approximately L-shaped one in plan view (corner rulers 52a, 52b) with a first straight portion 53 and a second straight portion 54. In this way, by simply installing one ruler body 17 used for the corner portion 51 between the upper portions 16 of the multiple outer forms 21 combined to form the corner portion 51 of the rising portion 4, it is possible to easily set the multiple outer forms 21 installed in the corner portion 51 at right angles, keep the outer forms 21 accurately at right angles, and hold the anchor bolts 5 in accurate positions around the corner portion 51.

The first straight portion 53 and the second straight portion 54 may also be connected by a diagonal member 55. This ensures and improves the strength of the ruler body 17, which is L-shaped in plan view and is installed in the corner portion 51, prevents deformation of the ruler body 17, and accurately maintains the squareness of the ruler body 17 itself. Furthermore, by installing (or engaging and holding) the ruler body 17, which is L-shaped in plan view and has increased strength due to the diagonal member 55, between multiple outer forms 21 provided to form the corner portion 51, the ruler body 17 described above can firmly hold the outer forms 21 for forming the corner portion 51, preventing the outer forms 21 from falling over.

(Effect 4) The anchor ruler 15 may be provided with connecting fittings 61A, 61B that connect multiple ruler bodies 17. This allows multiple ruler bodies 17 to be easily installed over the entire upper part 16 of the outer formwork 21 so that they are continuous along the upper part 16 of the outer formwork 21 by connecting multiple ruler bodies 17 to each other using the connecting fittings 61A, 61B. This makes it easy to finish the rising part 4 to the designed dimensions by precisely installing the outer formwork 21 and the ruler body 17, and also makes it possible to precisely embed multiple anchor bolts 5 in each part of the rising part 4.

The connecting fittings 61A, 61B may have widths 63a, 63b that match the width 62 of the upper portion 16 of the outer formwork 21. This makes it possible to connect multiple ruler bodies 17 using connecting fittings 61A, 61B that have widths 63a, 63b that match the width 62 of the upper portion 16 of the outer formwork 21, and simultaneously partially hold the ruler bodies 17 in the width direction 35 relative to the upper portion 16 of the outer formwork 21. In other words, the connecting fittings 61A, 61B can be used as locking fittings in the width direction 35 relative to the upper portion 16 of the outer formwork 21.

In this case, multiple types of connecting fittings 61A, 61B with different widths 63a, 63b may be prepared to match the width 62 of the upper part 16 of the outer formwork 21. This allows the ruler body 17 to be used as is for various outer formworks 21 with different widths 62 of the upper part 16 by using multiple types of connecting fittings 61A, 61B to match multiple types of outer formworks 21 with different widths 62 of the upper part 16 (i.e., by selecting and using those with the same widths 63a, 63b as the width 62). In other words, by simply preparing multiple types of connecting fittings 61A, 61B with different widths 63a, 63b, the (single-wire) ruler body 17 can be used without any problems even if its width w1 is different from the width 62 of the upper part 16 of the outer formwork 21.

(Effect 5) The connecting fittings 61A, 61B may have a connecting fitting main body 61a that is placed in contact with the upper part 16 of the outer frame 21 and the ruler main body 17, and locking portions 61b that extend downward from both side edges of the connecting fitting main body 61a and lock the upper part 16 of the outer frame 21 in the width direction 35. In this way, by placing the connecting fitting main body 61a in contact with the upper part 16 of the outer frame 21 and the ruler main body 17, the ruler main body 17 and the connecting fittings 61A, 61B can be partially locked to the upper part 16 of the outer frame 21 in the width direction 35 by the locking portions 61b that extend downward from both side edges of the connecting fitting main body 61a.

The ruler body 17 in a single line shape may have a width expansion section 64 with a connecting hole 65 into which the locking section 61b fits, at or near both ends of one side edge on the inner formwork 22 side. In this way, the width expansion sections 64 provided at or near both ends of one side edge on the inner formwork 22 side of adjacent ruler bodies 17 are stacked vertically, the connecting fitting body 61a is positioned so as to abut on the width expansion section 64, and the locking section 61b is inserted between the upper and lower connecting holes 65 of the stacked width expansion sections 64, thereby connecting the ruler bodies 17 in a single line shape to each other, aligning the positions of the one side edges on the inner formwork 22 side of the adjacent ruler bodies 17, and matching them with the edge of the outer formwork 21 on the inner formwork 22 side, and locking the ruler body 17 to the upper part 16 of the outer formwork 21 in the width direction 35.

REFERENCE SIGNS LIST 1 Building 3 Foundation 4 Rising portion 5 Anchor bolt 13 Formwork 15 Anchor ruler 16 Upper portion 17 Ruler body 21 Outer formwork 22 Inner formwork 27 Width dimension 31 Anchor position determining portion 32 Protruding portion 33 Extension direction 34 Notch portion 35 Width direction 36 Cutout portion 37 Anchor plate 42 Insulating material 51 Corner portion 53 First straight portion 54 Second straight portion 55 Diagonal member 61A Connection fitting (locking fitting)
61B Connection fitting (locking fitting)
62 Width dimension 63a Width dimension 63b Width dimension 61a Connection fitting body 61b Locking portion 61b' Locking portion 64 Width expansion portion 65 Connection hole w1 Width dimension w2 Projection amount w3 Projection amount

Claims (4)

An anchor ruler having a ruler body that is installed on an upper portion of a formwork that forms a rising portion of a foundation and determines the position of an anchor bolt to be embedded in the rising portion,
The formwork includes an outer formwork and an inner formwork,
The ruler body has a single-line shape that is installed along the upper portion of the outer formwork ,
A connecting metal fitting is provided to connect the ruler bodies together,
The anchor ruler is characterized in that the connecting fitting has a width dimension that matches the width dimension of the upper part of the outer formwork . 2. The anchor ruler according to claim 1,
The anchor ruler is characterized in that the ruler body, which has a single line shape, has an anchor position determining portion on one side edge portion facing the inner formwork, which determines the position at which an anchor bolt is to be installed. The anchor ruler according to claim 1 or 2,
This anchor ruler is characterized in that the ruler body, which is a single linear shape and installed along the upper part of the outer formwork that forms the corner portion of the rising portion, is L-shaped in a plan view and has a first straight portion and a second straight portion perpendicular to the first straight portion, and a diagonal member is provided between the first straight portion and the second straight portion to connect the first straight portion and the second straight portion. The anchor ruler according to any one of claims 1 to 3 ,
The connecting fitting includes a connecting fitting body that is disposed in contact with an upper portion of the outer form and the ruler body;
and a locking portion extending downward from each of both side edges of the connection fitting body and locking an upper portion of the outer form in the width direction,
This anchor ruler is characterized in that the ruler body, which has a single line shape, is provided with a width expansion portion at both ends or in the vicinity of one side edge of the inner formwork side, the width expansion portion having a connecting hole into which the engaging portion fits.