JPH11190130A - Footing top end leveler jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a leveler mortar easily and surely and in a short period of time even when various problems are caused in using the leveler mortar so as to set a footing top end horizontal at a predetermined level in the case of construction of a continuous footing. SOLUTION: A flat state leveler jig 1 is attached between form panels 103 built in with a predetermined interval to each other, and this is hooked by a footing leveler 104 mounted on the form panel 103 and hung with a hanger 5. Then, a nut member 105 is held by the leveler jig 1, and an anchor bolt 106 is screwed into this nut member 105 and provided vertically. Then, by adjusting the degree of projection of the hanger 5 on the upper face side of the footing leveler 140, the lower face of the leveler jig 1 can be set horizontal at a predetermined level. Then, it is only necessary to place concrete between the form panels 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for leveling a top end of a foundation, which can be used when constructing a cloth foundation or the like.

[0002]

2. Description of the Related Art A construction procedure of a fabric foundation will be briefly described with reference to FIGS. 6 and 7. A base form 101 is provided on both sides of a base reinforcing bar 100, and both sides of a vertical reinforcing bar 102 provided on the base reinforcing bar 100. After the form panels 103 are respectively erected, a flat base standard device 104 called a base anchor ruler or the like is placed on the upper surface of the form panel 103, and the levelness and level of the flat base standards 104 are aligned to some extent. deep.

Next, anchor bolts 106 into which extension mounting nuts 105 are screwed are inserted between the form panels 103, and the upper ends of the mounting nuts 105 are fixed to the bolt positions provided on the basic reference device 104. It is inserted into the hole 104a from below. The mounting nut 105 has a bolt portion 105b integrally provided above a cylindrical nut portion 105a, and the nut portion 105a and the bolt portion 105a.
b, an engaging collar 10 having a square plate shape or the like to partition between
5c protrudes outward in the circumferential direction.

The bolt portion 105b is also formed in a hollow cylindrical shape with an internal thread formed on the inner surface of the cylinder, so that the nut portion 105a is substantially extended. I have. Then, a nut 107 for preventing falling off is screwed into the upper end of the mounting nut 105 protruding upward from the basic reference device 104, and the basic reference device 104 is clamped between the nut 107 and the engagement flange 105c. Accordingly, the anchor bolt 106 is in a state of being vertically suspended from the basic reference device 104.

Next, concrete C is cast between the base molds 101 and between the form panels 103, and the hardening thereof is awaited. After the concrete C is hardened, a leveler mortar M having a high cement ratio, which has been softened until it is close to a liquid state, is applied to the upper surface of the hardened concrete C between the form panels 103 by a predetermined thickness (about 20 mm, and a mounting nut 105 Level that does not reach the lower end of the And wait for its hardening.

After the leveler mortar M is hardened, the nut 107 on the base standard 104 is removed and the basic standard 104 is removed.
Then, disassemble and remove each mold, and further remove the mounting nut 105. In addition, as another method, disassembling and disassembling the form panel 103 without pouring the leveler mortar M is performed.
After the removal, the leveler mortar M may be applied to the upper surface of the concrete C by ironing. In this case, naturally, the leveler mortar M is not softened to a liquid state.

[0007]

SUMMARY OF THE INVENTION Leveler mortar M
Although it is indispensable to keep the top (upper surface) of the cloth base, particularly the standing position of columns and the like, horizontal and at a constant level, the material cost is sometimes high. In addition, when the concrete C is hardened, laittance or the like occurs, and a peeling phenomenon occurs between the concrete mortar M and the leveler mortar M, so that cracking of the leveler mortar M becomes relatively high, and there is a problem that the strength of the upper layer portion of the cloth foundation is reduced.

On the other hand, as a method of applying the leveler mortar M, when a liquid is poured into the form panels 103 between the form panels 103, a rising edge due to surface tension is generated at a corner portion in contact with the inner surface of the form panel 103, Since this greatly deteriorates the horizontality, there is a disadvantage that the rising edge needs to be further removed after the form panel 103 is disassembled and removed.

On the other hand, when mortar is applied to the upper surface of concrete C by ironing work, the work requires skill, takes time and time, and furthermore, the work cannot be performed in rainy weather, which may lead to a prolonged construction period. There was a defect. Also, in such manual work,
It is difficult to smooth the upper surface of the mortar M (that is, the top end of the cloth base), and irregularities are inevitably generated, and the degree of irregularities may vary depending on individual differences.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and allows a top end as a cloth base or the like to be adjusted horizontally and at a constant level without using a leveler mortar.
It is an object of the present invention to provide a basic top-end leveler jig capable of eliminating defects or defects relating to a leveler mortar.

[0011]

According to the present invention, the following technical measures have been taken in order to achieve the above object. That is, in the base top end leveler jig according to the present invention, a leveler flat plate provided with a plurality of bolt position regulating holes through which anchor bolts can be inserted, and a leveler flat plate provided above the leveler flat plate and held by the base reference device. And a plurality of hanging members.

Therefore, first, a leveler flat plate is inserted between form panels erected at a predetermined interval from each other, and a suspending member provided on the leveler flat plate is attached to a base standard placed on the form panel. Hook it into the bowl,
A leveler plate is hung between the form panels. Also,
Utilizing a bolt position regulating hole provided in the leveler flat plate, the anchor bolt is held downward from the leveler flat plate.

Then, the level and level of the lower surface of the leveler flat plate are adjusted to a predetermined level by checking the state of engagement of the hanging member with the basic reference device on the upper surface side of the basic reference device. If concrete is poured between the formwork panels in such a state, the concrete upper surface is set at a predetermined level along the leveler flat plate.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 to FIG. 4 show an embodiment of the foundation top leveler jig 1 according to the present invention, and FIG.
Shows a cloth foundation 2 constructed using the foundation top end leveler jig 1.

In FIG. 2 and FIG. 3, the basic top end leveler jig 1 includes a leveler flat plate 4 and a leveler flat plate 4.
And a plurality of (two in the example in the figure) hanging members 5 provided on the upper part. In addition, this basic top end leveler jig 1
When the cloth foundation 2 is constructed by using the same, the base reference device 104 mounted on the upper surface of the form panel 103 and the extension mounting nut 105 screwed to the protruding end of the anchor bolt 106 are used as in the related art. .

The leveler flat plate 4 is formed in the shape of a rectangular plate having the thickness of the cloth base 2 (the inner dimension of the form panels 103) substantially equal to the length of the short side. Are provided at predetermined intervals from each other. The inner diameter of the bolt position restricting hole 6 is such that the nut portion 105a of the mounting nut 105 is fitted without looseness, and the mutual distance between the bolt position restricting holes 6 is such that the anchor bolts 106 are provided on the cloth base 2. Has been equal to.

On both sides in the longitudinal direction of the leveler flat plate 4, weir pieces 7 are provided which rise upward in a bent shape. The hanging member 5 has a round rod shape, and is screwed to a core shaft 8 having a male screw portion 8a provided on a part of the upper outer circumferential surface or the entire outer circumferential surface thereof, and the male screw portion 8a of the core shaft 8. And a pair of upper and lower level setting tools 9 and 10.

Each of the level setting tools 9 and 10 uses a wing nut or the like, and their directions are reversed so that the respective seating surfaces are opposed to each other on the upper side and the lower side. In most cases, the upper level setting tool 9 is used for level adjustment, and the lower level setting tool 10 is used for level fixing after adjustment. The hanging member 5 is provided on the leveler flat plate 4 via bracket members 12 attached to both outer positions of the bolt position regulating holes 6 by welding or the like. That is, as shown in FIG. 4, the lower end of the core shaft 8 is bent into an L-shape, and the bent portion 8b is inserted into the bracket member 12.

For this reason, the hanging members 5 are swingable in directions in which they come close to and separate from each other (the longitudinal direction of the leveler flat plate 4). The core shaft 8 is connected to the bracket member 12.
For example, a male screw is provided in the L-shaped bent portion 8b of the core shaft 8, while a lateral through hole 12a having no female screw is provided in the bracket member 12 (for example, a bush or the like). When the bent portion 8b of the core shaft 8 is inserted into the lateral through hole 12a of the bracket member 12, the nut 14 is screwed into the penetrating portion via a slip ring 13 or the like. What is necessary is just to make it the structure which matches. Of course, other structures may be employed.

The hanging member 5 having such a structure can hang the leveler flat plate 4 to the basic reference device 104 by using an appropriate hook concave portion 104b generally provided for the basic reference device 104. It was made. Therefore, the interval between the hanging members 5 (bracket members 12) with respect to the leveler flat plate 4 is set to the size corresponding to the interval between the hooking concave portions 104b of the basic reference device 104, and is provided on the basic reference device 104. The positional relationship between the bolt position restricting hole 104a and the hooking concave portion 104b matches the positional relationship between the bolt position restricting hole 6 and the hanging member 5 (bracket member 12) in the leveler flat plate 4.

Next, the basic top leveler jig 1 having the above configuration
The procedure for constructing the cloth foundation 2 using the method will be described mainly with reference to FIG. First, the nut portion 105a of the mounting nut 105 is inserted into each bolt position regulating hole 6 of the leveler flat plate 4 of the base top end leveler jig 1 from above. Then, the lower surface of the leveler flat plate 4 and the mounting nut 10
A release material for concrete is applied to the outer peripheral surface of the nut portion 105a in 5 in advance.

Next, the jig 1 is lifted by using the hanging members 5 on both sides as handles, and the form panel 1 is lifted.
Frame opening 104c provided in basic reference device 104 on
And the like, and inserted between the form panels 103. Further, between the form panels 103, the base top leveler jig 1 is moved to a predetermined position, and
Below the hooking concave portion 104b, a swing operation is performed in such a manner that one or both hanging tools 5 are once tilted outward and then returned to the original upright state (see FIG. 3). Is inserted into the hooking recess 104b, and then the upper level setting tool 9 is hooked on the opening edge of the hooking recess 104b.

In this manner, the base top leveler jig 1 is suspended from the base reference device 104. At this stage, on the upper surface of the basic reference device 104, the upper level setting tool 9 of the hanging member 5 and the core shaft 8 on the upper side of the portion where the level setting tool 9 is screwed are projected. The upper end of the bolt portion 105b of the mounting nut 105 fits into the bolt position regulating hole 104a of the basic reference device 104 so as not to interfere with the basic reference device 104. In some cases, it may penetrate through 104a and protrude toward the upper surface of the basic reference device 104.

Next, the anchor bolts 106 are inserted between the form panels 103, and the ends of the male screws at the distal ends thereof are inserted and held in the leveler flat plate 4 of the base top leveler jig 1. The nut 105 is screwed into the nut portion 105a for a predetermined length. Next, on the upper surface side of the basic reference device 104, in order to position the upper end portion of the core shaft 8 of the hanging member 5, which is in the protruding state, at a predetermined level, using a transit, a level, and the like, The degree of screwing in the level setting tool 9 is adjusted.

When the adjustment is completed, the lower level setting tool 10 is rotated by a screw to abut against the lower surface of the leveler flat plate 4, and the upper level setting tool 9 and the lower level setting tool 10 are connected. Thereby, the leveler flat plate 4 is firmly held. As a result, the lower surface of the leveler flat plate 4 becomes horizontal, and the predetermined level is maintained as a surface.
In addition, the positioning of the anchor bolts 106 in the plane direction and the length of the upward protrusion after the concrete is cast are also set to predetermined values.

As described above, the short side of the leveler flat plate 4 is substantially the same as the thickness of the cloth base 2, so that the long sides of both sides are in contact with the inner surface of the form panel 103. Since they are close to each other, no positional deviation in the longitudinal direction occurs, and since the weir pieces 7 are provided on both sides in the longitudinal direction, the lower surface does not tilt in the short side direction.

Next, concrete is cast between the form panels 103 and the hardening thereof is awaited. The concrete placement level may be the lower surface level of the leveler flat plate 4 or may be higher to some extent as long as it does not exceed the height of the weir piece 7. After the concrete has hardened to a predetermined state, first, the level setting tool 9 above the hanging member 5 is loosened in the foundation top leveler jig 1, and both hanging members 5 are moved outward in the longitudinal direction of the leveler flat plate 4. Incline.

Then, the base reference device 104 is removed from the form panel 103, and the form panel 103 is disassembled and removed.
Further, in the base top end leveler jig 1, first, the mounting nut 105 is loosened and extracted on the leveler flat plate 4, and then the leveler flat plate 4 is peeled off from the upper surface of the concrete with the hanging member 5 or the like. As a result, the desired fabric base 2 (see FIG. 5) is obtained.

In the case where the portion of the cloth foundation 2 from which the top end leveler jig 1 is removed has a concave shape,
This concave portion can be used for positioning a pillar or the like. Incidentally, the present invention is not limited to the above embodiment. For example, the coupling structure between the hanging member 5 and the leveler flat plate 4 (rotation support structure, retaining structure, etc.) can be other structures.

In the leveler flat plate 4, the weir piece 7 is not always necessary. In the installation procedure of the cloth foundation 2, after the foundation top leveler jig 1 is inserted between the form panels 103, the mounting nut 10 is attached to the foundation top leveler jig 1.
The detailed order and the like can be changed as appropriate, such as inserting 5. The mounting nut 105 is not limited to the shape described above, and may be a hexagon nut or the like that is widely and generally used.

[0031]

As is apparent from the above description, in the jig of the present invention, a leveler flat plate is inserted between the form panels, and the hanging member provided on the leveler flat plate is attached. , Hooked on the base standard placed on the form panel, hung the leveler flat plate between the form panels, and held the anchor bolt in the suspended state using the bolt position restriction holes provided in the leveler flat plate After that, the level of the horizontality and the level on the lower surface of the leveler plate can be adjusted to a predetermined level by setting the engagement state of the hanging member on the upper part of the basic reference device to a predetermined level. By simply placing concrete in between, the concrete upper surface is set to be horizontal and at a predetermined level along the lower surface of the leveler flat plate.

Accordingly, the top end of the cloth base or the like can be adjusted horizontally and at a constant level without using a leveler mortar or the like, and the defects or problems related to the leveler mortar can be eliminated.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a usage state of a foundation top leveler jig according to the present invention.

FIG. 2 is an enlarged perspective view showing a main part (a basic top end leveler jig) in FIG. 1;

FIG. 3 is a side sectional view showing a use state of a foundation top leveler jig after placing concrete.

FIG. 4 is an enlarged sectional view taken along line AA of FIG. 2;

FIG. 5 is a perspective view showing a cloth foundation constructed using the foundation top leveler jig according to the present invention.

FIG. 6 is a perspective view showing a state of holding an anchor bolt in a conventional procedure of fabric foundation installation.

FIG. 7 is a front cross-sectional view showing a concrete placing state in a conventional procedure for fabric foundation.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Top end leveler jig 4 Leveler flat plate 5 Hanging member 6 Bolt position regulating hole 7 Weir piece 103 Form panel 104 Foundation reference device 106 Anchor bolt

Claims (1)

[Claims] 1. A leveler flat plate (4) provided with a plurality of bolt position regulating holes (6) through which anchor bolts (106) can be inserted, and a basic reference device provided on the leveler flat plate (4). 104), a plurality of hanging members (5) which can be suspended and held.