JP2006316418A - Upper-surface positioning implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an upper-surface positioning implement 10 which can be easily manufactured and subjected to an inserting operation, which can maintain a stable state even in the solidification of concrete 20, and which facilitates the positioning of an upper surface of a concrete structure such as a foundation. <P>SOLUTION: This upper-surface positioning implement 10, which is used for positioning the upper surface of the concrete structure which is formed by placing the concrete 20, comprises a rod-shaped body 11 which is inserted into the concrete 20 after placing, and an insertion assisting part 12 which is formed on the side surface of the rod-shaped body 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a top end positioning tool that is used when constructing a concrete structure such as a foundation or foundation constructed by placing concrete and used to define the top end face of the concrete structure. Is.

  For example, when a foundation that requires a completely horizontal top surface is constructed with concrete, care must be taken that the placement surface does not become a perfect plane due to shrinkage or the presence of aggregate when the concrete solidifies. It is. Therefore, in general, as shown in Fig. 1, first, a concrete structure with a ceiling slightly lower than the designed ceiling is first constructed with concrete, and mortar is placed on the concrete structure and leveled with a trowel. The top end face is formed, or a “leveling material” that is excellent in fluidity and capable of forming a complete flat surface is poured in, and a completely horizontal top end face is formed by this leveling material. The leveling material may be considered to have improved the fluidity of ready-mixed concrete, but does not shrink as much as concrete.

Needless to say, such a mortar iron leveling, of course, when the leveling material is poured, the amount of the flow is a problem, and it is necessary to form a horizontal plane (top end face) as designed. Therefore, conventionally, positioning tools such as those described in Patent Documents 1 to 3 have been adopted.
Japanese Patent Application Laid-Open No. 07-158276, abstract, representative diagram Japanese Patent Application Laid-Open No. 07-189489, abstract, representative figure Japanese Patent Laid-Open No. 10-252278, abstract, representative diagram

  The “support for level setting screw” described in Patent Document 1 is “to set the level with a screw, and can easily install the level setting screw, and the concrete is hardened. The leveling can be performed even after the level has been set, and further, the leveling method that does not go mad after the level is set and the setting screw support tool therefor are provided "as shown in FIG. As described above, “a support 11 having a holding force capable of screwing the level setting screw 12 and holding the screw 12 at an arbitrary height is embedded in the concrete 14, and the screw 12 is screwed. It has a configuration such that the level is adjusted by adjusting the amount.

  The “supporting tool for level setting screw” disclosed in Patent Document 1 has an advantage that it can be provided at low cost because the configuration is very simple, but the diameter of the “supporting tool 11” is the diameter of the “screw 12”. Because it is of a much larger shape, it is not so easy to insert into the concrete after placing, and due to the fluidity when the ready-mixed concrete that has been pushed in forcibly is leveled naturally It is considered that the position is easy to change.

  In addition, the “top support tool” described in Patent Document 2 is “the top or bottom support tool used for leveling of the foundation in foundation work”. For the purpose of facilitating embedding in the mortar and simplifying the top end work or realizing the high accuracy of the top end, as shown in FIG. A receiving screw hole that opens at the upper end portion is provided, and an adjustment screw body is screwed into the receiving screw hole so as to be able to advance and retreat. A portion 2 is provided, and a lower blade portion that extends perpendicularly and perpendicularly to the auxiliary tool body and is sharply provided downward is attached to the lower portion of the auxiliary tool body.

  Since the “top edge extension assisting tool” described in Patent Document 2 has an “upper blade part 2 extending in a direction perpendicular to the assisting tool body in a direction perpendicular to the horizontal direction”, the “upper blade part 2” is It seems that the insertion of the auxiliary tool into the concrete becomes very difficult. Rather, the “upper blade portion 2” is placed on the concrete upper surface after placement so that the auxiliary tool main body 1 is vertical, and is not embedded in the concrete, but the actual ceiling. The end adjustment is performed by advancing and retracting the “adjusting screw body 5” that is threadably engaged with the receiving screw hole.

  Furthermore, the “pillar / base level adjusting bracket” described in Patent Document 3 provides “a leveling bracket that is easy to level when the column base and base are installed on the foundation concrete and that is inexpensive. As shown in FIG. 8, “the bottom plate 2 for blocking the bottom of the high nut 1 embedded in the foundation concrete 11 and closing the screw hole 3 of the high nut 1 and preventing the settlement of the high nut 1 are provided. The adjustment bolt 4 that is fixed and screwed with the locking nut 5 from the upper end of the high nut 1 is screwed in. "

  This "column base / base level adjusting bracket" of Patent Document 3 also has a "bottom plate 2 for preventing settlement" and is not inserted into the concrete immediately after being placed entirely, The “high nut 1” is vertically supported by the “bottom plate 2 for preventing settlement”. In this case, the “level adjusting bracket” of Patent Document 3 has the same problem as the “top edge assisting tool” of Patent Document 2. In addition, the “column base / base level adjusting bracket” of Patent Document 3 is configured to support the “high nut 1” vertically by the “bottom plate 2 for preventing settlement”. It is considered that the height adjustment of the “high nut 1” is on the “bottom plate 2” and can only be performed within the height range of the high nut 1, and the height adjustment range is very small. .

  Therefore, the present inventors are able to make a jig that can be easily configured, is stable even when solidifying the concrete, and can easily put out the top of a concrete structure such as a foundation. As a result of various investigations, the present invention has been completed.

  That is, the object of the present invention is to provide a top-end positioning tool that can be easily configured, can maintain a stable state even when the concrete is solidified, and can easily place the top end of a concrete structure such as a foundation. Is to provide.

In order to solve the above problems, first, the means taken by the invention according to claim 1 will be described with reference numerals used in the description of the best mode described below.
“The top end positioning tool 10 for determining the top end surface of the concrete structure formed by placing the concrete 20,
A top end positioning tool 10 comprising a rod-like main body 11 inserted into the concrete 20 after placement and an insertion assisting portion 12 formed on the side surface of the rod-like main body 11 "
It is.

  That is, the top end positioning tool 10 according to claim 1 is configured such that the lower end of the main body 11 is inserted into the concrete 20 after placement, as shown in FIG. The upper end indicates the upper surface of the leveling material 21 to be cast after the concrete 20 is solidified. That is, the top end positioning tool 10 is inserted into the concrete 20 after placement to such a depth that the upper end of the main body 11 shows the prescribed upper surface of the leveling material 21.

  The top end positioning tool 10 can be easily inserted into the concrete 20 after placement, since the main body 11 is “bar-shaped” and is picked and rotated by a fingertip. In particular, in the main body 11 of the best mode shown in FIGS. 1 to 5, the lower end of the main body 11 is pointed as shown in the figure, so that aggregates such as gravel in the concrete 20 can be easily avoided, and the concrete 20 Easy to insert into.

  And since the insertion auxiliary | assistant part 12 was formed in the main body 11 which comprises this top end positioning tool 10 as shown in FIGS. 1-5, this insertion auxiliary | assistant part 12 is the said top end positioning tool. When the 10 is rotated, the insertion into the concrete 20 is assisted. Of course, if the upper end of the top end positioning tool 10 is too deep with respect to the upper surface of the leveling material 21 shown by the dotted line in FIG. The top end positioning tool 10 as a whole is lifted by the action of the auxiliary portion 12.

  The insertion of the top end positioning tool 10 into the concrete 20 as described above is performed with respect to a large number of the top end positioning tools 10, but the road that defines the upper surface of the leveling material 21 in the formwork on which the concrete 20 is placed. A thread is stretched, and the upper end of the main body 11 is in contact with the road thread. Of course, as another insertion method, preliminary insertion of each top end positioning tool 10 is performed so that the upper end of the main body 11 slightly protrudes from the regulation surface of the leveling material 21, and a ruler is placed on the upper end of each top end positioning tool 10. It is also possible to employ pressing by applying the same.

  In the top end positioning tool 10 inserted into the concrete 20, since the insertion center portion is the main body 11, it does not receive a large buoyancy from the ready-mixed concrete 20, and the influence of the shrinkage on the concrete 20 during solidification, that is, the position There is no deviation. After the concrete 20 is solidified, the insertion assisting portion 12 formed around the main body 11 prevents the solidified concrete 20 from coming off, and the top end positioning tool 10 is fixed to the concrete 20. It is definitely done.

  Therefore, the top end positioning tool 10 according to the first aspect can be easily manufactured and inserted, can maintain a stable state even when the concrete 20 is solidified, and can be used for the top end of a concrete structure such as a foundation. Is easy to do.

Moreover, in order to solve the said subject, the means which invention based on Claim 2 took about the top end positioning tool 10 of the said Claim 1,
“The insertion assisting part 12 is a screw part 12a”
It is what.

  That is, in the top end positioning tool 10 according to claim 2, as shown in FIG. 1, the insertion assisting portion 12 is a screw portion 12a, whereby the insertion assisting portion 12 itself is molded by resin molding, Alternatively, it can be easily formed by machining a metal bar.

  By using the screwing portion 12a as the insertion assisting portion 12, the top end positioning tool 10 can be easily screwed and inserted into the ready-mixed concrete 20. By rotating the top end positioning tool 10, a leveling material can be obtained. Thus, a fine position adjustment with respect to the prescribed upper surface 21 can be easily performed. Needless to say, the screw portion 12a also ensures the retaining of the concrete 20 after solidification.

  Of course, the screw portion 12a which is the insertion assisting portion 12 may be a “screw groove” as shown in FIG. 1 or a “screw protrusion” constituting a “thread”. In any case, the top end positioning tool 10 can be easily screwed and inserted into the ready-mixed concrete 20.

  Therefore, the top end positioning tool 10 according to the second aspect of the present invention exhibits the same function as that of the first aspect of the present invention and can more easily perform the screwing operation.

Furthermore, in order to solve the said subject, the means which invention which concerns on Claim 3 took about the top end positioning tool 10 of the said Claim 1,
“The insertion assisting part 12 is composed of a plurality of blades 12b”
It is what.

  That is, in the top end positioning tool 10 of claim 3, as shown in FIG. 2, the insertion assisting portion 12 is constituted by a plurality of blade plates 12b, and each blade plate 12b is shown in FIG. And (b), it is integrated so that it may become spiral with respect to the main body 11, forming a predetermined clearance gap.

  Since each of these blades 12b is located in a spiral shape with a gap between them, if the top end positioning tool 10 is rotated and inserted into the ready-mixed concrete 20, the aggregates in the concrete 20 Such a baffle does not enter between the blades 12b to obstruct the entry, and the top end positioning tool 10 is automatically inserted into the concrete 20 by its rotation.

  Therefore, the top end positioning tool 10 of claim 3 can perform the screwing operation more easily in addition to the same function as that of claim 1.

And the means which the invention which concerns on Claim 4 took about the top end positioning tool 10 of the said Claim 1,
“The insertion assisting part 12 is a screw blade 12c”
It is what.

  That is, in the top end positioning tool 10 of claim 4, as shown in FIGS. 3 and 4, the insertion assisting portion 12 is constituted by a continuous screw blade 12 c, for example, (a) and ( As shown in (b), the main body 11 is integrated so as to be spiral.

  Since this screw blade 12c is located in a spiral shape, if the top end positioning tool 10 is rotated and inserted into the ready-mixed concrete 20, the screw blade 12c bites into the concrete 20 and the aggregate therein. The top end positioning tool 10 is automatically inserted into the concrete 20 by its rotation.

  Therefore, the top end positioning tool 10 according to the fourth aspect of the present invention can perform the screwing operation more easily in addition to exhibiting the same function as that of the first aspect.

Moreover, the means which the invention which concerns on Claim 5 took is about the top end positioning tool 10 in any one of the said Claims 1-4.
“An anti-slip 13 is formed on the upper side surface of the main body 11”
It is.

  That is, since the top end positioning tool 10 according to the present invention is basically inserted into the ready-mixed concrete 20 by rotating the main body 11, the sliding for making it easy to pick this rotation operation with a finger. The stopper 13 is formed as shown in FIG. 2 (B) or FIG. 4 (B).

  In other words, in the top end positioning tool 10, the anti-slip 13 surely exerts friction against the finger or glove, and the rotation operation in which the main body 11 is grasped with the finger or the like is ensured. is there.

  Therefore, the top end positioning tool 10 according to the fifth aspect of the present invention exhibits the same function as that according to any of the first to fourth aspects of the present invention, and can easily and reliably rotate the main body 11 with a finger. It is a thing.

Further, the means taken by the invention according to claim 6 is the top end positioning tool 10 according to any one of claims 1 to 5,
“The driver locking portion 14 is formed on the upper surface of the main body 11”
It is.

  That is, the top end positioning tool 10 according to claim 6 is configured such that the main body 11 can be rotated by a screwdriver. As described above, the driver locking portion 14 is formed on the upper surface of the main body 11.

  Needless to say, the driver locking portion 14 may be formed not only for a “plus driver” as shown, but also for a “Ninus driver” although not shown.

  Therefore, the top end positioning tool 10 according to the sixth aspect exhibits the same function as that according to any one of the first to fifth aspects, and can perform the rotation operation by the driver of the main body 11 easily and reliably. It is a thing.

That is, the top end positioning tool 10 according to the present invention includes:
“The top end positioning tool 10 for determining the top end surface of the concrete structure formed by placing the concrete 20,
It was constituted by a rod-shaped main body 11 to be inserted into the concrete 20 after placement, and an insertion assisting portion 12 formed on the side surface of the rod-shaped main body 11. "
Therefore, the manufacturing and insertion operation can be easily performed, and a stable state can be maintained even when the concrete 20 is solidified, and the top end of a concrete structure such as a foundation can be provided. The top end positioning tool 10 that can be easily performed can be provided.

  Next, the invention according to each claim configured as described above will be described with respect to the top end positioning tool 10 which is the best mode shown in the drawings. FIG. 1 shows the top end positioning tool 10 according to the present invention. The longitudinal cross-sectional view which shows a mode when it inserts in the concrete 20 after placement is shown.

  The top end positioning tool 10 is integrally molded as a whole using synthetic resin as a material, but may of course be formed by using other materials such as metal. Further, as shown in FIG. 1, the top end positioning tool 10 is mainly composed of a rod-like main body 11 inserted into the ready-mixed concrete 20 and an insertion auxiliary portion 12 formed on the middle surface of the main body 11. is there. Of course, since the main body 11 is inserted into the concrete 20, it is advantageous to have its lower end sharpened as shown in FIGS.

  The insertion assisting portion 12 formed on the outer periphery of the main body 11 includes a screw portion 12a as shown in FIG. 1 or FIG. 5, a plurality of blades 12b arranged in a spiral shape as shown in FIG. 2, and FIG. And variously formed by the screw blades 12c as shown in FIG.

  When the insertion assisting portion 12 is the screw portion 12a, the insertion assisting portion 12 itself can be easily formed by resin molding or metal rod machining, and the top end positioning tool 10 can be formed by the screw portion 12a. When the is rotated, the fine position adjustment with respect to the prescribed upper surface of the leveling material 21 can be easily performed, and the retaining of the concrete 20 after solidification can be ensured.

  In the case where the insertion assisting portion 12 is configured by a plurality of blades 12b positioned in a spiral shape, when the top end positioning tool 10 is rotated and inserted into the ready-mixed concrete 20, it is like an aggregate in the concrete 20. The top end positioning tool 10 is automatically inserted into the concrete 20 due to its rotation without any obstacles entering between the blades 12b to obstruct the entry.

  When the insertion assisting portion 12 is composed of continuous screw blades 12c, if the top end positioning tool 10 is rotated and inserted into the ready-mixed concrete 20, the screw blades 12c become the concrete 20 and the aggregates therein. The top end positioning tool 10 is automatically inserted into the concrete 20 by its rotation.

  And the anti-slip | skid 13 is formed in the upper side surface of the main body 11 which comprises this top end positioning tool 10, as shown in each (b) of FIG. 2 or FIG. This anti-slip 13 is for increasing the frictional force with respect to a finger for rotating the top end positioning tool 10 or a glove fitted to the top end positioning tool 10, and the rotation operation of the top end positioning tool 10 can be easily and reliably performed. It is something that can be done.

  Furthermore, the upper end of the main body 11 constituting the top end positioning tool 10 can be rotated by a driver as shown in FIGS. 2 and 4 (A). The driver locking portion 14 is formed not only for the “plus driver” as shown, but also for the “Ninus driver” (not shown). May be implemented.

It is a front view of the state which inserted the top end positioning tool concerning the present invention in concrete. The other example of the same top end positioning tool is shown, (A) is a plan view and (B) is a front view. It shows another example of the same top end positioning tool, (A) is a plan view, (B) is a front view. The other top example of the same top end positioning tool is shown, (A) is a plan view and (B) is a front view. It is a perspective view which shows another example of the same top end positioning tool. It is sectional drawing which shows a prior art example. It is a front view which shows another prior art example. It is a perspective view which shows another prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Top end positioning tool 11 Main body 12 Insertion auxiliary part 12a Screw part 12b Blade board 12c Screw blade 13 Non-slip 14 Driver latching part 20 (Raw) Concrete 21 Leveling material

Claims (6)

A top end positioning tool for determining the top end surface of a concrete structure formed by placing concrete,
A top end positioning tool comprising a rod-shaped main body to be inserted into the concrete after placing and an insertion auxiliary portion formed on a side surface of the rod-shaped main body.   The top end positioning tool according to claim 1, wherein the insertion assisting part is a screw part.   The top end positioning tool according to claim 1, wherein the insertion assisting part is constituted by a plurality of blades.   The top end positioning tool according to claim 1, wherein the insertion assisting part is a screw blade.   The top end positioning tool according to any one of claims 1 to 4, wherein a slip stopper is formed on an upper side surface of the main body.   The top end positioning tool according to any one of claims 1 to 5, wherein a driver locking portion is formed on an upper surface of the main body.

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