JPH0524289B2 - - Google Patents

Description

[Details of the invention are explained]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor bolt installation jig for setting the installation position of an anchor bolt to be installed on the foundation concrete of a building.

[0002]

[Prior Art] Anchor bolts installed on foundation concrete play an important role in connecting the foundation concrete and the building built on the foundation concrete.
If the accuracy of the planting position cannot be obtained, the anchor bolt cannot be connected to the building, and troublesome correction work must be performed on site each time.

[0003] For this reason, accurate precision has traditionally been required for setting the anchor bolt planting position.
For example, Utility Model Application Publication No. 54-130344 and Utility Model Application Publication No. 49-
Various anchor bolt installation jigs have been proposed, such as the jig disclosed in Japanese Patent No. 62903, in which indicators are provided on the top surface of the substrate to indicate the position of the dimensional reference line of the foundation concrete.

[0004]

[Problems to be Solved by the Invention] However, when the conventional installation jig is installed between the upper ends of the concrete formwork, it is fixed to the upper end surface of the formwork with nails or the like. Therefore, there was a problem that the installation and removal of the jig was troublesome and the work became complicated. In addition, in general, when comparing north-facing and south-facing prefabricated houses, the entrance, back door, living room, and kitchen are often in exactly opposite positions, and in this case, the structure of the foundation concrete is also completely opposite. It will be constructed symmetrically.

[0005] However, in order to do this, in the case of conventional anchor bolt installation jigs that only provide indicators on the top side of the board, it is necessary to prepare two types of symmetrical jigs, which increases component costs. At the same time, there was also the problem that these two types of jigs had to be used properly each time, making the work complicated. This invention was made to solve such problems.

[0006]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a concrete mold that is constructed between the upper ends of concrete forms placed opposite each other when forming the foundation concrete of a building, and is planted on the foundation concrete. In an anchor bolt installation jig equipped with a board that supports the anchor bolt to be installed, on the board, indicators indicating the position of the dimension reference line of the foundation concrete are provided symmetrically on both the front and back sides of the board, and A connecting pin is penetrated and fixed so that both upper and lower ends protrude, and the upper end or lower end of this connecting pin is selectively fitted into a hole in the upper end of the concrete form.

[0007]

[Operation] With the above structure, when the upper end or the lower end of the connecting pin is fitted into the hole at the upper end of the concrete form, the anchor bolt installation jig is stably installed between the upper ends of the form. In addition, when installing anchor bolts in the foundation concrete of both north-facing and south-facing prefabricated houses, where the entrance and back entrance are exactly opposite, the front and back sides of one installation jig can be selectively used. Ru.

[0008]

Embodiments Hereinafter, embodiments embodying the present invention will be described with reference to the drawings. FIG. 1 shows a plan view of the residential foundation concrete 23 and anchor bolt installation jigs used for each part thereof, and a shown in the center of the figure is a plan view of the residential foundation concrete 23. If a plurality of standard dimensions A and B shown at equal intervals in the vertical and horizontal directions by dashed lines are assumed, then the foundation concrete forms C shown in solid lines are arranged facing each other at a predetermined interval according to the standard dimensions A and B. Then, concrete is poured between the concrete forms C to form the foundation concrete 23.

[0009] The anchor bolt installation jig is installed between the upper ends of the opposing formwork C at the intersection of the vertical dimension reference line A-A and the horizontal dimension reference line B-B on the foundation concrete 23, Foundation concrete 2
The outer circumferential anchor bolt installation jig (hereinafter abbreviated as outer circumferential anchor) 1 installed between the opposing formworks C of the outer circumferential linear portion D of No. 3 is shown in Fig. 1b. Installation jig (hereinafter,
Fig. 1c shows an inward corner anchor bolt installation jig (hereinafter abbreviated as an inward corner anchor) 3, which is installed at the inward corner F, and T.
Figure 1e shows the T-angle anchor bolt installation jig (hereinafter abbreviated as T-angle anchor) 4 installed at the corner G.
FIG. 1F shows a partition anchor bolt installation jig (hereinafter referred to as partition anchor) 5 installed at the partition H, and a partition application anchor bolt installation jig (hereinafter referred to as partition anchor) 5 installed at the partition cross corner I and the partition T corner J, respectively. The jig (hereinafter abbreviated as partition application anchor) 6 is shown in Figures 1g and h, at the entrance corner K and L.
The entrance anchor bolt installation jig (hereinafter referred to as entrance anchor) 7 to be installed in each of
They are shown in j.

[0010] To explain the outer circumferential anchor 1 shown in FIGS. 1b, 2, and 3, holes 8a at the four corners of the anchor body 8, which is made of steel and serves as a rectangular plate-shaped substrate,
As shown in FIG. 4, a connecting pin 9 for fitting and connecting is inserted into a hole at the upper end of the formwork C and fixed by welding or the like. The connecting pin 9 has an upper end protruding upward from the upper surface of the anchor body 8, and a lower end protruding downward from the lower surface of the anchor body 8,
Either the upper or lower end, which is formed to have the same diameter, is fitted into a hole in the formwork C.

[0011] Furthermore, cylindrical anchor bolt support members (hereinafter abbreviated as support members) 10 are fitted and fixed into the two through holes formed in the anchor body 8, respectively, and an anchor is provided at the center of each support member 10. A bolt insertion hole (hereinafter abbreviated as insertion hole) 10a is formed. In FIG. 2, when considering the XY plane including the Y axis and the located on X1, and its line
1-X1, V-shaped notches 11, 11 are provided on both side edges of the anchor body 8 to clearly indicate the position of the anchor bolt core. Said line X1
- On the line X2-X2 parallel to X1, V-shaped notches 12 are provided at both sides and approximately in the center of the anchor body 8, respectively, to clearly indicate the position of A-A of the longitudinal dimension reference line; 12 and a small diameter through hole 13 are provided. Also, line X2-X2
A line Y1- that is perpendicular to the line Y1- and passes through the center of the through hole 13
On Y1, V-shaped notches 14, 14 are provided on both side edges of the anchor body 8 to clearly indicate the position of the lateral dimension reference line BB.

[0012] In other anchors to be described later, parts having the same reference numerals as the anchors in FIGS. 2 and 3 have the same functions, so they will not be described. The protruding corner anchor 2 shown in FIGS. 1c, 5, and 6 has a shape in which an anchor body 8 has one corner cut out, and connecting pins 9 are provided at the other three corners. Further, a notch having a short notch edge 16 is provided on the opposite side of the corner M at one end of the notch edge, and the notch edge 16 and the corner M are located on the line X2-X2, and the dimension reference line A- Specify A. Furthermore, there is a notch edge 17 on the other end of the notch edge on the opposite side from the corner N.
A notch having a notch edge 17 is provided.
and corner N is located on line Y1-Y11 to clearly define the reference dimension line B-B.

[0013] The support member 10 is provided at three locations. Then, the insertion holes 10a of the two supporting members 10
The center of is located on X1-X1, and the insertion hole 10a of one other support member 10 and the support member 10 located on the notch side of the two support members 10 described above.
The center of the insertion hole 10a is located on the line Y2-Y2 perpendicular to the line X1-X1. Line Y2-Y2 indicates the position of support member 10.

[0014] In the corner anchor 3 shown in FIG. 1d, FIG. 7, and FIG. It is located inward. Furthermore, seven supporting members 10 are fixed to the anchor body 8. T-angle anchor 4 shown in FIGS. 1e, 9 and 10
, connecting pins 9 are provided at the four corners of the anchor body 8 which is approximately T-shaped in plan, and the anchor body 8 is
Four supporting members 10 are fixed to the. Furthermore, among the right-angled edges forming each of the two interior angles of the anchor body 8, one of the shorter edges 17 is connected to the line Y
1-Y1 to clearly indicate the reference dimension line B-B.

[0015] In the partition anchor 5 shown in FIG. 1f, FIG. 11, and FIG. 12, the four connecting pins 9 at the four corners of the anchor body 8 are all provided closer to the line X2-X2. Two supporting members 10 are provided in parallel. The anchor body 8 is provided with transparent holes 18, 18 for confirming concrete placement status. The partitioning anchor 6 shown in FIGS. 1g, h, 13 and 14 has connecting pins 9 provided at the four corners of the anchor body 8, and between both connecting pins 9 at the right corner as shown in FIG. Further, two connecting pins 9 are arranged closer to the line Y1-T1. Also,
There are two supporting members 10. This partitioning anchor 6 is installed at the cross corner of the partition shown in FIG. 1g by the upper end of the connecting pin 9 that projects upward, and by turning it over and using the lower end of the connecting pin 9 that projects downward. It is installed at the T corner of the partition shown in .

[0016] The entrance anchor 7 shown in FIGS. 1i, 1j, 15 and 16 has a horizontal T-shape in plan, and is provided with connecting pins 9 that protrude both upward and downward at its four corners. There are three supporting members 10. This entrance anchor 7 is installed at the entrance corner K shown in FIG. 1i by the lower end of the connecting pin 9 that projects downward, and by turning it over and using the upper end of the connecting pin 9 that projects upward, it can be installed in FIG. 1j. It is arranged at the corner L of the entrance shown.

[0017] Now, how to place anchor bolts on the foundation concrete of a building using the above-mentioned anchor bolt placement jig is shown in Figures 1, 17, and 1.
This will be explained according to 8. Basic horizontal and vertical dimensions of residential foundation concrete A, B
Accordingly, formworks C are placed facing each other with an interval equal to the concrete thickness. Through holes 20 are provided at predetermined positions at the upper end of the formwork C, and the lower ends of the connecting pins 9 are fitted into these through holes 20. Then, anchor bolt installation jigs such as the outer periphery anchor 1 and the protruding corner anchor 2 are placed at the intersection of the dimension reference lines A-A and B-B between the upper ends of the formwork C, and the connecting pins 9 Due to the fitting relationship between the lower end and the through hole 20, it is stably constructed between the upper ends of the forms C and C. Then, an anchor bolt 21 is inserted into the insertion hole 10a.
is inserted, and the male thread 21a on the upper part thereof is made to protrude upward from the upper end of the support member 10, and the male thread 21
By screwing the nut 22 into the anchor bolt 21, the anchor bolt 21 is suspended between the opposing formworks C and C. In this state, concrete 23 is poured between formworks C and C and solidified, and then nuts 2
2 and remove each anchor bolt installation jig such as the outer circumferential anchor 1 and the protruding corner anchor 2, and also remove the formwork C, C, a large number of anchor bolts 21 can be planted at predetermined positions on the foundation concrete 23. will be established.

[0018] Therefore, the lower end of the connecting pin 9 is connected to the formwork C.
The anchor bolt installation jig can be installed and removed quickly and easily by simply fitting it into the through hole 20 at the upper end or releasing the fitted state. This anchor bolt 21 must be installed in an accurate position with high precision. For example, as shown in FIG. Even if you try to maintain the distance, it may not be possible to obtain an accurate distance due to dimensional errors or installation errors in the formwork C. In that case, one anchor (for example, outer circumferential anchor 1) should be aligned with the dimension reference lines A-A, B-
At the same time as setting the anchor bolt 21 at position B, measure the distance Q between the outer periphery anchor 1 and the protruding corner anchor 2 using a long scale (not shown).
Make sure to maintain the correct distance between them.

[0019] In order to do so, both notches 1 of the peripheral anchor 1
4, 14 and the corner N of the through hole 13 or the protruding corner anchor 2, the through hole 13, and the notch edge 17 along the dimension reference line B-
Match B, both notches 12, 1 of the outer circumferential anchor 1
2 and the through hole 13 or the corner M of the protruding corner anchor 2, the through hole 13 and the notch edge 16 are aligned with the same dimension reference line A-A, and the outer notch 14 of the peripheral anchor 1 and the corner of the protruding corner anchor 2 are aligned. The distance between Q
Adjust by slightly moving formwork C so that That is, the distance Q can be measured at three locations between both anchors 1 and 2, and the anchor bolt 21 can be positioned at a more accurate position. Similarly, the positions of other anchor bolt installation jigs and the distances between them are also determined from the dimension reference line A-
It can be set accurately to match A and B-B.

[0020] In addition, measurement using this scale can be performed not only before concrete placement, but also during and after concrete placement. It is possible to prevent the installation position of 21 from being incorrectly corrected. In addition, a final check can be made after pouring concrete and washing off excess concrete. Therefore, the anchor bolt 21 can be planted at an accurate position on the foundation concrete. Note that the anchor bolt 21 can be planted at an accurate position on the foundation concrete. Note that the amount of protrusion of the anchor bolt 21 from above the foundation concrete is
It can be adjusted by

[0021] In addition, the indicators that clearly indicate the dimension reference lines A-A, B-B of the through hole 13, notch 14, etc. of the anchor body 8 may be a grooved line or a stamp, and can be easily accessed from the anchor body 8. It is established so that it will never disappear. Furthermore, both upper and lower ends of the connecting pin 9 protrude from the upper and lower surfaces of the anchor body 8, and the upper and lower surfaces have indicators formed by the through hole 13, notch 14, etc. that are symmetrical on the front and back. , either the top or bottom side of the anchor body 8 can be used for constructing foundation concrete for both north-facing and south-facing prefabricated houses where the front door, back door, etc. are in exactly opposite positions. 2 left-right symmetrical ones
Since there is no need to prepare different types, it is possible to reduce component costs and contribute to speedy work execution.

[0022] The anchor bolt installation jig described above was adjusted by moving the formwork C to determine the position of the anchor bolt. Therefore, with this movement, the anchor bolt 2 suspended and supported by the anchor body 8
There is a possibility that the anchor bolt 21 may also tilt and the anchor bolt 21 may not be able to stand vertically on the foundation concrete. Therefore, a further improved anchor bolt installation jig that can easily adjust the position of the anchor bolt 21 and allow the anchor bolt 21 to stand vertically on the foundation concrete is described below according to FIGS. 19 and 20. explain.

[0023] The anchor bolt installation jig 24 is formed by superimposing an adjustment plate 26 on a substrate 25. At the four corners of the substrate 25, a connecting pin 55 having a substantially hemispherical tip is fixedly penetrated with its upper and lower ends projecting upwardly and downwardly, respectively, in order to be connected to the mold C, and a female threaded hole 27 is formed therein. A horizontal level adjustment bolt 28 is screwed into each female threaded hole 27, and its lower end projects below the board 25. In this case, the length of the protruding upper end or lower end of the connecting pin 55 is made sufficiently longer than the length of the bolt 28. Also,
Three female screw holes 29 for attaching the adjustment plate 26 are screwed on the board 25, and V-shaped notches 30, 3 are provided to clearly indicate the dimension reference line A-A as described above.
0, V-shaped notch 3 that clearly indicates the dimension reference line B-B
1, 31 are provided, and both dimension reference lines A-A, B-
A through hole 32 is provided at the intersection of B. In addition, the board 25 has a notch 3 on the dimension reference line A-A.
Recessed lines 53, 53 that are continuous with the notches 31, 31 are provided on the dimension reference line BB.

[0024] Two support members 10 are mounted on the adjustment plate 26.
is fixed thereto, and a large-diameter escape hole 33 is transparently provided in the substrate 25 at a position corresponding to the support member 10 . The adjustment plate 26 has a predetermined positional relationship with the insertion hole 10a of the support member 10, and has V-shaped notches 34, 34 that clearly indicate the dimension reference line A-A, and a V-shaped notch that indicates the dimension reference line B-B. Shape cutout 35,3
A small-diameter through hole 36 is provided at the intersection of 5 and both end reference lines AA and BB. Further, a through hole 37 having a larger diameter than the female screw hole 29 is provided in the adjustment plate 26 corresponding to the female screw hole 29 of the base plate 25, and the head is inserted through the washer 38 on the adjustment plate 26 and the through hole 37. By screwing the adjusting bolt 39 having a section into the female threaded hole 29, the adjusting plate 26 is attached and fixed onto the substrate 25.

Now, as shown in FIG. 20, by inserting the lower end of the connecting pin 55 into the through hole 20 at the upper end of the formwork C, the installation jig 24 is placed at a predetermined position on the formwork C. do. Then, the anchor bolt 21 is inserted into the insertion hole 10a, the male thread 21a at the top of the anchor bolt 21 is projected upward from the upper end of the support member 10, and the nut 22 is screwed into the male thread 21a. Suspended between opposing formworks C and C.

[0026] In this case, the notch 30 on the substrate 25,
30, the notches 31, 31, and the through hole 32 can be used to adjust the position as described above using the scale. Then, the four bolts 28 in contact with the upper end surface of the formwork C are connected to the upper end surface of the formwork C and the substrate 25.
You can adjust the spacing between concrete 2
The board 25 can be kept horizontal by adjusting the amount of protrusion of the anchor bolt 21 from above the board 3 and by using a horizontal level meter (not shown).
In this way, by keeping the substrate 25 horizontal, the anchor bolts 21 can be provided vertically.

[0027] Now, the installation position of the anchor bolt 21 must be accurately and highly accurate based on the dimension reference lines AA and B-B. The distance between E and
It may be necessary to keep the dimensional error within a range of mm to 3 mm. In order to maintain such highly accurate dimensions, as described above, it is time-consuming to move and adjust the formwork C. Therefore, by slightly loosening the adjustment bolt 39 and moving the adjustment plate 26 in the horizontal direction, the position of the anchor bolt 21 can be easily adjusted. , use the notches 34, 34 to accurately measure the distances to the dimension reference lines AA, BB, and then tighten the adjustment bolt 39.

[0028] Note that the anchor bolt installation jig 24 shown in FIG. 19 corresponds to the outer circumferential anchor 1 shown in FIGS. Of course, the installation jig can also have the same function as the installation jig 24 by providing adjustment plates 26, bolts 28, etc. FIG. 21 shows a state in which the substrate 25 and the adjustment plate 26 are overlapped, and the length of the support member 10 is made longer than the example shown in FIG. 19. Therefore, anchor bolt 2
1 will not wobble within the insertion hole 10a of the support member 10. In addition, this anchor bolt installation jig 2
4, an anchor guide 50 made of rubber, polystyrene resin, or the like may be provided below the anchor bolt installation jig 24, as shown in FIG. This anchor guide 50 is shown in FIG.
As shown in FIG. 2, it has a substantially inverted truncated cone shape, and an insertion hole 51 having a slightly larger diameter than the thread diameter of the male thread 21a of the anchor bolt 21 is provided in the center. Note that the thread diameter of the male threaded portion 21a of the anchor bolt 21 is slightly thicker than other portions. This is caused by rolling of the male threaded portion 21a. A ring-shaped locking pawl 52 is protruded from the upper part of the inner circumferential surface of the anchor guide 50, and when the anchor bolt 21 is inserted into the insertion hole 51 of the anchor guide 50, the valley portion of the male threaded portion 21a of the anchor bolt 21 is inserted into the hole 51 of the anchor guide 50. The engagement pawl 52 engages, and the anchor guide 50 is engaged with the anchor bolt 21.

[0029]

Effects of the Invention As described in detail above, according to the present invention, even an amateur worker can install anchor bolts without any skill by providing an index indicating the position of the dimensional reference line of the foundation concrete on the substrate. Not only can the installation position be easily set, but all you have to do is fit the protruding end of the connecting pin into the hole at the top of the concrete form, so you can quickly install and remove the jig.
This can be easily carried out, and furthermore, the indicators are provided symmetrically with respect to both the front and back surfaces of the substrate,
In addition, the connecting pins are fixed through the board so that their upper and lower ends protrude to both the front and back sides of the board, so they are anchored to the foundation concrete of both north-facing and south-facing prefabricated houses, where the entrance and back entrance are exactly opposite positions. Even when installing bolts, it is possible to selectively use both the front and back sides of one installation jig, and there is no need to prepare and use two symmetrical types as in the past. This has the excellent effect of contributing to speedy work execution and lowering component costs.

[Brief explanation of the drawing]

FIG. 1A shows a schematic plan view of a house foundation concrete, and b to j are partial plan views of each part on which an anchor bolt installation jig embodying the present invention is installed.

FIG. 2 is a plan view of an anchor bolt installation jig used on the outer periphery of a house foundation.

FIG. 3 is a side view of the same.

FIG. 4 is a partial cross-sectional view of the board showing a state in which the connecting pin is fixed.

FIG. 5 is a plan view of an anchor bolt installation jig used at the projecting corner of a house foundation.

FIG. 6 is a side view of the same.

FIG. 7 is a plan view of an anchor bolt installation jig used at the corner of a house foundation.

FIG. 8 is a side view of the same.

FIG. 9 is a plan view of an anchor bolt installation jig used at the T corner of a house foundation.

FIG. 10 is a side view of the same.

FIG. 11 is a plan view of an anchor bolt installation jig used for a partition part of a house foundation.

FIG. 12 is a side view of the same.

FIG. 13 is a plan view of an anchor bolt installation jig used for a partition cross corner section or a partition T corner section of a house foundation.

FIG. 14 is a side view of the same.

FIG. 15 is a plan view of an anchor bolt installation jig used at the entrance corner of a house foundation.

FIG. 16 is a side view of the same.

FIG. 17 is a sectional view showing how the anchor bolt installation jig is used.

FIG. 18 is a partial perspective view showing the state of use.

FIG. 19 is an exploded perspective view showing another example of an anchor bolt installation jig.

FIG. 20 is a sectional view showing the state of use thereof.

FIG. 21 is a perspective view showing another example of an anchor bolt installation jig.

FIG. 22 is a sectional view showing the state of use thereof.

FIG. 23 is a sectional view showing the anchor guide.

[Explanation of symbols]

1, 2, 3, 4, 5, 6, 7, 24... Various anchors that constitute the anchor bolt installation jig,
8, 25... Anchor body as a substrate, 9, 5
5... Connection pin, 12, 14, 30, 31... Notch as an index, 13, 32... Through hole as an index, 16, 17... Notch edge as an index, 2
1... Anchor bolt, A-A, B-B... Dimension reference line, C... Formwork, M, N... Corner as an index.

Claims (1)

[Claims] Claim 1: An anchor bolt installation tool that is installed between the upper ends of concrete formworks that are placed opposite each other during molding of foundation concrete for a building, and that includes a substrate that supports the anchor bolts that are planted on the foundation concrete. In the fixture, the substrates 8, 25 have dimensional reference lines A-A, B-B of the foundation concrete 23 on both the front and back surfaces thereof.
Indicators indicating the position 12, 13, 14, 16, 17,
M, N, etc. are provided symmetrically on the front and back, and the connecting pins 9, 5 are arranged so that both upper and lower ends protrude from both the front and back surfaces.
An anchor bolt installation jig characterized in that the connecting pins 9 and 55 are fixed through each other, and the upper end or the lower end of the connecting pins 9 and 55 are selectively fitted into holes in the upper end of the concrete form C.