JP2507676Y2 - Concrete cloth foundation assembly member positioning jig - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a cloth foundation assembly member for constructing a concrete cloth foundation used as a foundation of a house, etc. The present invention relates to a positioning jig for arranging and fixing members.

[Prior Art] The concrete cloth foundation, which is most often used as a foundation for houses and the like, is a wide foundation that is constructed by vertically erecting a narrow rising portion from almost the center of the foundation. It is buried inside and the upper part of the rising part is projected from the ground.
Such a concrete cloth foundation is constructed by connecting the places where the pillars of the house are to be erected, and the foundation is placed on the upper surface of the rising portion, and the pillars are erected on the foundation.

Conventionally, such a concrete cloth foundation has been generally constructed by the following procedure by a method called so-called in-situ casting. First, the ground where the cloth foundation is to be installed is dug down into a groove, and a split stone is laid on the bottom of it. Next, the formwork is assembled on it, and the reinforcing bars are assembled in the formwork. continue,
Placing fresh concrete into the formwork, curing it,
After curing, the mold is disassembled and the base and the lower part of the rising part are backfilled. Therefore, the construction of this concrete cloth foundation requires a lot of labor and a long construction period.

Therefore, conventionally, in order to solve the above-mentioned drawbacks of on-site construction, it has been proposed to use a member for assembling a concrete cloth foundation in which a base portion and a rising portion are integrally formed of concrete. According to this proposal, waste concrete is struck on the rubble stone and the above-mentioned cloth foundation assembly member is placed on this waste concrete so that it becomes parallel by adjusting screws provided on the wide base part. After adjusting, fittings,
A flowable fresh concrete is filled between the rising part and the discarded concrete, and the cured concrete is cured and fixed.

Then, in this proposal, a positioning member is laid in advance on the waste concrete struck on the crushed stone according to the position where the member for assembling the concrete cloth foundation to be arranged thereon is arranged. After the waste concrete is hardened, the concrete cloth foundation assembling member is arranged while being lifted by a crane or the like.

[Problems to be Solved by the Invention] However, once the positioning member of the concrete cloth foundation assembling member according to the related art described above is arranged and fixed on the waste concrete, its position cannot be adjusted thereafter. . Therefore, this positioning member must be placed accurately when the waste concrete is thrown in.However, as a practical matter, it is not possible to set the placement so accurately at the construction site, and it also moves during the curing of the waste concrete. However, there is a problem in that it is difficult to accurately arrange the cloth base member and it is difficult to actually adopt it.

Therefore, in the present invention, in view of the problems in the above-mentioned conventional technology, it can be actually adopted in the field,
It is an object of the present invention to provide a practical positioning member for a concrete cloth foundation assembly member.

[Means for Solving the Problems] According to the present invention, the above object is to arrange a member for assembling a concrete cloth foundation on waste concrete struck on a split stone laid on the bottom of a groove dug in the ground. A positioning jig used to determine the position of the concrete cloth foundation assembly, wherein at least two or more are laid for each of the plurality of concrete cloth foundation assembly members to be arranged on the waste concrete. In the arrangement in which the projection receiving hole provided on the lower surface of the working member is inserted and arranged in accordance with the position of the projecting portion protruding above the laid positioning jig,
This is achieved by a positioning jig for a concrete cloth foundation assembling member, characterized in that the position of the protruding portion of the positioning jig can be adjusted after the installation.

[Operation] That is, according to the above-mentioned positioning jig for the concrete cloth foundation assembly member of the present invention, the position of the positioning projection is adjusted after the positioning jig is laid on the waste concrete. Since it is possible, even when laying it, it does not require such a precise arrangement, and it can be actually used in the field.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 attached herewith shows how the positioning jig 10 according to the present invention is used to position a member 20 for assembling a concrete cloth foundation on a concrete 40 that has been cast on a rubble stone 30. As is clear from this figure, the positioning jig 10 is embedded in the waste concrete 40 so as to be at a predetermined position on the surface of the waste concrete 40.

That is, as is clear from the attached FIG. 2, this positioning jig 10 also has a cylindrical main body 12 made of iron or the like welded onto a rectangular plate 11 made of iron or the like. Are fixedly joined together to form a fixed part body. A plurality of (for example, four rebars 13, 13 ...)
After all, it is radially joined by welding or the like. As shown in the figure, when these positioning jigs 10 are embedded inside the waste concrete 40, these radially fixed rebars 13, 13 ... Are embedded inside the surrounding waste concrete 40. When it is done, it is for strengthening the bond of the surrounding concrete.

A circular lid portion 14 is fixed to the upper portion of the cylindrical main body 12 by welding or the like (see FIG. 1), and a circular opening portion 14 'is formed in the central portion thereof. . Then, through this opening 14 ', a pointed projection 15 for positioning is formed at the tip of the opening 14', and a screw groove 16 'is cut on the outer periphery of the bolt.
16 and a nut portion 18 in which a washer 17 is integrally welded and joined. The pointed projection 15 of the bolt 16 is attached so as to project upward from the circular lid 13 at the top of the tubular body 12, and the flat circular head 161 thereof is attached.
(See FIG. 1) and the outer diameter of the washer 17 are set larger than the diameter of the circular opening 14 '. for that reason,
The bolt portion 16 does not come off from the positioning jig 10 and is always integrated.

Further, in FIG. 1 described above, a projection receiving hole 21 is formed in the bottom surface (lower surface) of the concrete cloth foundation assembling member 20 by also burying a metal tubular member.

A method for setting the positioning of the positioning jig 10 described above will be described. First, as shown in FIG. 4 attached, a groove 110 is dug in the ground 100, and the split stone 30 is put into the groove 110, and concrete is poured from above. At this time, the positioning jig 10 according to the present invention is embedded on the surface of the scrap concrete 40 cast on the split stone 30 in at least two central positions per one concrete cloth foundation assembly member. In this condition, the concrete is hardened and fixed.

Then, as shown in FIG. 3 (a), the nut portion 18
Loosen so that it can move to the left and right and back and forth together with the bolt part 16, while using a water thread or survey instrument, while moving the bolt part 16 of the positioning jig 10 together with the nut part 18, Adjust its position so that it is on the specified straight line. After that, as shown in FIG. 3 (b), the nut portion 18 is tightened at this adjusted position to fix the position of the pointed projection portion 15.

Thereafter, as shown in FIG. 4 above, the concrete cloth foundation assembling member 20 is hung by a crane or the like using an eyebolt 22 attached to the upper end surface of the rising portion of the concrete cloth foundation assembling member 40. Above, that is, the pointed protrusions 15 of the embedded positioning jig 10 are aligned and arranged so as to fit in the protrusion receiving holes 21 provided on the bottom surface of the concrete cloth foundation assembling member 20. To do.

Further, in FIG. 4, reference numerals 25 and 25 are screws for adjusting the height so that the concrete cloth foundation assembling member 20 is parallel, and reference numerals 26 and 26 are the concrete cloth foundation assembling member 20. And a pouring hole for pouring ready-mixed concrete into the space between the concrete 40, reference numerals 27 and 27 are reinforcing bars embedded inside the member 20 for assembling concrete cloth foundation, and 28 is a reference numeral. A groove formed on the surface of the concrete 40 for spreading the injected fresh concrete between the concrete cloth foundation assembly member 20 and the concrete.

[Effect of the Invention] As is apparent from the above description, according to the positioning jig for the member for assembling a concrete cloth foundation of the present invention, the leading projection portion for positioning even after being embedded and fixed on waste concrete. By finely adjusting the position, it is possible to accurately position it on the above-mentioned waste concrete, so even when laying work on the actual site, it is not necessary to arrange it so accurately, and it is also adopted on the actual site. It is possible to achieve a practically excellent effect that is possible.

[Brief description of drawings]

FIG. 1 is a sectional view showing a state of use of a positioning jig for a concrete cloth foundation assembly member according to the present invention, and FIG. 2 is a perspective view showing an appearance of the positioning jig for the concrete cloth foundation assembly member. FIGS. (A) and (b) are cross-sectional views for explaining the method of adjusting the position of the positioning jig for the concrete cloth foundation assembly member, and FIG. 4 is a sectional view of the concrete cloth foundation assembly member using the positioning jig. It is a perspective view including a partial section explaining a state where it has been arranged. 10 …… Positioning jig, 11 …… Square plate, 12 …… Cylinder body,
13 …… Reinforcing bar, 14 …… Lid, 14 ′ …… Circular opening, 15 ……
Leading protrusion, 16 …… Bolt part, 16 ′ …… Screw groove, 17 ……
Washer, 18 …… Nut part, 161 …… Flat circular head, 20
...... Concrete cloth foundation assembly member, 21 ...... Projection receiving hole, 30 …… Split stone, 40 …… Scrap concrete

Claims (2)

(57) [Scope of utility model registration request] 1. A positioning jig used for determining the position of a concrete cloth foundation assembly member when arranging the member for assembling concrete cloth foundation on the crushed concrete laid on the rubble stone laid on the bottom of the groove dug in the ground. Then, at least two or more of each of the plurality of concrete cloth foundation assembling members to be arranged are laid on the waste concrete, and the projection receiving holes provided on the lower surface of the concrete cloth foundation assembling member are laid. A concrete cloth foundation characterized in that the position of the protruding portion of the positioning jig can be adjusted after laying, in the case of inserting and arranging in accordance with the position of the protruding portion protruding above the positioning jig. Positioning jig for assembly members. 2. In the claim 1 of the utility model registration claim, the protrusion of the positioning jig is formed so as to protrude from the center of the disk-shaped plate, and a thread groove is formed around the protrusion. , A nut portion is screwed into the thread groove, and the protrusion has a circular window portion for adjusting the position of the assembly jig sandwiched between the disc-shaped plate and the nut portion. A positioning jig for a member for assembling a concrete cloth foundation, which is characterized in that: