JP2000310037A - Mortar screed crest positioning tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To position the crest position of a mortar screed easily in the state that shifting is not caused. SOLUTION: A mortar screed crest positioning tool 1 comprises a tube body 4 fitted onto an anchor bolt 3 projected from the top of an RC foundation 2, a female screw part 5 provided at the upper end of the tube body 4 and threaded onto the tip of the anchor bolt 3, and a crest indication part 6 provided at the lower end of the tube body 4. The crest indication part is formed into a flanged shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a top positioner for leveling mortar used mainly in mortar work to be performed on the top of a house foundation.

[0002]

2. Description of the Related Art In a foundation work for a house, first, a root is cut out, a split stone is laid, and concrete is thrown on the stone, and then an RC base is constructed with anchor bolts buried. Using such an anchor bolt, R
Tighten the C foundation and the base placed on it, but before mounting the base, level the top of the RC base in advance and level with a mortar so that no gap is created between the RC base and the base. Need to be kept.

Here, when the leveling mortar is applied, in order to prevent the leveling mortar from flowing to both sides of the RC foundation, the formwork used for the construction of the RC foundation is not removed but is left as it is. Often done in a state.

Therefore, when positioning the top end of the leveling mortar, blackout is performed, and a wooden formwork is nailed to mark the top end, while a steel formwork is magnetized with a magnet. I wore it to mark the top.

[0005]

However, since the spacing between the molds is as narrow as about 10 to 15 cm, there is a limit to accurately perform nailing inside them, and there is a problem that workability is poor and labor is required. In addition, there has been a problem that the magnetized magnet is displaced in position, and that it is complicated to print ink on the inner surface of the formwork in the first place.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and a top of a leveling mortar capable of easily positioning the top of the leveling mortar without causing a position shift. An object is to provide a positioning tool.

[0007]

In order to achieve the above object, a top locating tool of a leveling mortar according to the present invention is, as described in claim 1, a cylinder fitted into an anchor bolt projecting from a base top. A body, a female screw portion provided at an upper end of the cylindrical body and screwed into a tip of the anchor bolt,
A top end display portion provided at a lower end of the cylindrical body.

Further, in the top positioner of the leveling mortar according to the present invention, the top display portion is formed in a flange shape.

Further, in the top positioner of the leveling mortar according to the present invention, the female screw portion is formed so as to be grippable, and the outer peripheral surface is provided with anti-slip irregularities.

In the top positioner for leveling mortar according to the present invention, an RC bolt is constructed by casting concrete into a built-in formwork and then an anchor bolt protruding from the top end of the RC base. And a female thread provided at the upper end of the cylinder is screwed into the tip of the anchor bolt. Then, the mounting height is adjusted by appropriately turning the cylindrical body or the female screw portion in the forward and reverse directions by hand, and thereafter, leveling mortar is applied on the RC foundation. At this time, the top of the leveling mortar is made to coincide with the top display section provided at the lower end of the cylindrical body.

[0011] During the construction of the leveling mortar, by preventing the mold mortar from flowing out to both sides of the RC foundation by leaving the form when the RC foundation was constructed without removing it. Can be.

When the leveling mortar is completed, the top end positioning tool of the leveling mortar according to the present invention is removed from the anchor bolt by turning the female screw portion in the opposite direction to prepare for the next conversion.

[0013] The site to which the top locator of the leveling mortar according to the present invention is applied is mainly a RC base of a house, but if the base is placed on the RC base, whether the house is a house or not. Of course, it doesn't matter if it is a wooden base. For example, the present invention can be applied to a case where four anchor bolts are buried on an independent RC foundation and a base plate of a steel column is fixed using the anchor bolts.

In order to accurately position the top of the leveling mortar, it is, of course, necessary to attach the leveling mortar top positioning tool itself according to the present invention at an accurate height. Position with respect to bolts, or
Alternatively, it may be arbitrarily determined whether or not the positioning is performed by using a measuring instrument such as a level irrespective of the anchor bolt.

The construction of the top end display section is arbitrary, and it is conceivable that the lower edge of the cylindrical body is used as the top end display section. However, if the top end display section is formed in a flange shape, For example, the top of the leveling mortar can be easily managed during the leveling mortar construction.

The female screw portion may be of any structure as long as it can be screwed into the tip of the anchor bolt. However, considering the convenience of removal from the solidified leveling mortar, for example, this may be replaced with a hexagon nut. Or a wing nut. In particular, if such a female screw portion is formed to be grippable and provided with anti-slip irregularities on its outer peripheral surface, by grasping the female screw portion by hand and turning it in the removing direction, even after leveling mortar solidification, The top positioner of the leveling mortar according to the present invention can be easily removed.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a leveling mortar according to an embodiment of the present invention. It is to be noted that the same reference numerals are given to components and the like that are substantially the same as those in the conventional technology, and description thereof will be omitted.

FIGS. 1 and 2 are an overall perspective view and a sectional view, respectively, showing a top positioner of a leveling mortar according to the present embodiment. As can be seen from these figures, the top positioner 1 of the leveling mortar according to the present embodiment is a RC base 2
A cylindrical body 4 fitted into an anchor bolt 3 protruding from the top end of the cylindrical body, a female screw portion 5 provided at an upper end of the cylindrical body and screwed into a tip of the anchor bolt 3, and a top end display provided at a lower end of the cylindrical body 4 The top display portion is formed in a flange shape.

The top positioner 1 of the leveling mortar is manufactured by forming the female screw portion 5, the cylindrical body 4 and the top display portion 6 by, for example, a hexagon nut, a steel pipe and a washer, and welding them together. It is also possible to integrally fabricate with a plastic material.

In the leveler 1 for leveling mortar according to this embodiment, first, as shown in FIG.
Build C Fundamentals 2.

Next, as shown in FIG.
The cylindrical body 4 of the mortar top end positioning tool 1 is fitted into the anchor bolt 3 protruding from the top end of the anchor bolt 3, and the female screw part 5 provided at the upper end of the cylindrical body is screwed into the tip of the anchor bolt 3.

Next, the mounting height is adjusted by manually turning the cylindrical body 4 or the female screw portion 5 in the forward and reverse directions by hand. In addition,
When attaching the top end positioning tool 1 of the leveling mortar to the anchor bolt 3, if the anchor bolt is accurately embedded, the mounting height is controlled by the dimension H from the tip to the female screw portion 5. Can be.

When the mounting and positioning of the top locator 1 of the leveling mortar is completed, as shown in FIG.
The leveling mortar 12 is constructed on the foundation 2. At this time,
The leveling mortar 12 is installed such that the top end of the leveling mortar 12 matches the top end display section 6 provided at the lower end of the cylindrical body 4.

When the leveling mortar is applied, the RC foundation 2
By leaving the molds 11, 11 when they are constructed without removing them, the leveling mortar can be prevented from flowing out to both sides of the RC foundation 2.

When the construction of the leveling mortar 12 is completed, as shown in FIG. 4, by turning the female screw portion 5 in the opposite direction, the top positioning tool 1 of the leveling mortar is removed from the anchor bolt 3, and the next step is as follows. Prepare for diversion.

As explained above, according to the leveling mortar top end positioning tool 1 according to the present embodiment, the leveling mortar is screwed into the anchor bolt 3 before leveling mortar work.
After the construction is completed, it is only necessary to remove the anchor bolts 3 from the anchor bolts 3, so that the top end of the leveling mortar 12 can be easily positioned. In this case, even if the molds 11 for constructing the RC foundation 2 are present, there is almost no hindrance to the work.

Further, if the anchor bolt 3 is accurately buried with a measuring instrument such as a level, the mounting height of the mortar top end positioning tool 1 can be controlled on the basis of the anchor bolt, As a result, leveling mortar 12
It is possible to easily secure the improvement of the top end accuracy.

Further, according to the leveling mortar top positioning tool 1 according to the present embodiment, since the screw is firmly screwed to the tip of the anchor bolt 3 during the mortar construction, it is necessary to level the trowel or the like. Even if the work implement collides, there is no concern that the position shift occurs unlike the conventional magnet.

In addition, according to the leveling mortar top end positioning tool 1 according to the present embodiment, the mounting height can be easily and easily increased by appropriately rotating in the forward and reverse directions while being screwed to the anchor bolt 3. Fine adjustment is possible.

In addition, according to the leveling mortar top positioning tool 1 according to the present embodiment, the top display portion 6 is formed in a flange shape, so that the top of the leveling mortar can be set when the leveling mortar is constructed. It can be easily managed.

In this embodiment, on the assumption that the anchor bolts 3 are buried correctly, the top end positioning tool 1 of the mortar is leveled on the basis of the anchor bolts. If the construction accuracy is not so good, the leveling tool 1 itself of the leveling mortar may be accurately leveled with a surveying tool such as a level, instead of the above method.

In such a case, first, the top positioner 1 of the leveling mortar is mounted at two places near both ends of the cloth foundation, and the mounting height thereof is positioned at a level. It is possible to work relatively efficiently by adjusting the mounting height of the top end positioning tool 1 of each leveling mortar attached to the intermediate portion according to the height of the water thread. Can proceed.

In this embodiment, the leveling mortar 12
In consideration of the fact that the top positioner 1 of the leveling mortar may not be turned by hand due to solidification, the female screw portion 5 is formed of a hexagonal nut so that it can be removed using a spanner or the like. 5 may be configured as shown in FIG.

A top end positioning tool 21 of a leveling mortar according to a modification shown in FIG.
A female screw part 22 screwed into the tip of the anchor bolt 3 is provided at an upper end of the cylindrical body 4, and a top end display part 6 is provided at a lower end of the cylindrical body 4.
The female screw portion 22 is formed so as to be grippable, and has anti-slip irregularities 2 on its outer peripheral surface.
3 is provided.

According to such a configuration, the female screw portion 22 is grasped by hand and turned in the removing direction, whereby the leveling mortar 12 is removed.
Even after the solidification of the mortar, the top positioner 21 of the leveling mortar can be easily removed without a tool.

[0036]

As described above, according to the leveling mortar top end positioning tool of the present invention according to the first aspect, the top of the leveling mortar can be easily located and the mortar work can be performed. Since the inside is firmly screwed to the tip of the anchor bolt, there is no concern that even if a leveling work tool such as a trowel hits the position, unlike a conventional magnet, the position shift occurs. In addition, by appropriately rotating in the forward and reverse directions while being screwed to the anchor bolt, the mounting height can be easily and finely adjusted.

Further, according to the leveling mortar top positioning tool of the present invention according to claim 2, there is also an effect that the top of the leveling mortar can be easily managed during the leveling mortar construction. .

Further, according to the leveling mortar top end positioning tool of the present invention according to claim 3, the female screw portion is gripped by hand and turned in the removing direction, so that even after the leveling mortar is solidified. Also, there is an effect that the top end positioning tool of the leveling mortar can be easily removed without requiring a tool.

[0039]

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a top positioner 1 of a leveling mortar according to an embodiment.

FIG. 2 is a cross-sectional view of a top positioner 1 of the leveling mortar according to the embodiment.

FIG. 3 is a diagram showing a procedure for using a top positioner 1 for leveling mortar.

FIG. 4 is a view showing a procedure of using the top positioner 1 of the leveling mortar.

FIG. 5 is an overall perspective view showing a top positioner of a leveling mortar according to a modification.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1,21 Leveling mortar top end positioning tool 2 RC foundation 3 Anchor bolt 4 Cylindrical body 5,22 Female screw part 6 Top end display part 12 Leveling mortar 23 Non-slip irregularities

Claims (3)

[Claims] 1. A tubular body fitted into an anchor bolt protruding from a top end of a base, a female screw portion provided at an upper end of the tubular body and screwed into a tip of the anchor bolt, and a ceiling provided at a lower end of the tubular body. A top positioner for leveling mortar, characterized by comprising an end display section. 2. The top positioning tool for smoothing mortar according to claim 1, wherein said top display section is formed in a flange shape. 3. The leveling mortar top positioning tool according to claim 1, wherein said female screw portion is formed so as to be grippable, and is provided with anti-slip irregularities on its outer peripheral surface.