Anchor set jig

Abstract

This invention provides a simple anchor set jig that allows for easy and highly accurate leveling of the tip of an anchor bolt embedded in concrete foundations for residential buildings, etc., without requiring special technical skills or the need to hold the anchor bolt with one hand. [Solution] An anchor setting jig 1 used when setting the level of the tip of an anchor bolt embedded in a concrete foundation, the anchor setting jig 1 consists of a rod-shaped level receiving member 2 of a predetermined length and an anchor setting shaft member 3 having a diameter smaller than the diameter of the rod-shaped level receiving member 2 and attached to the lower end of the rod-shaped level receiving member 2, and further, a magnet 3a is provided at the lower end of the anchor setting shaft member 3 as an indicator member that serves as an indicator of the tip of the anchor bolt when setting the anchor bolt, and the indicator member is made of a magnetic material.

Description

Technical Field

[0001] This invention relates to a set jig for an anchor bolt used for leveling the tip (upper end) of an anchor bolt during housing and other civil engineering foundation work.

Background Art

[0002] Anchor bolts used for concrete foundations such as for housing are embedded in the foundation concrete after being adjusted through predetermined positioning work and leveling work at the tip inside the formwork in advance. For the leveling work of the tip of the anchor bolt, that is, the setting work of the anchor bolt, conventionally, a measuring rod, a leveling instrument, etc. have been used, and finally, the tip of the anchor bolt is fixed in position while being held by hand.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] As described above, when leveling the tip of an anchor bolt, various tools and jigs may be used depending on the application, for example, dedicated tools as shown in Patent Documents 1 and 2. However, basically, such work is mainly done by one person and the anchor bolt must be held with one hand. Moreover, since the operation of changing the posture up and down frequently occurs, the position is unstable and rework is also involved, so the work efficiency was poor. Also, when grasping the tip of the anchor bolt, there was also a problem that conventional anchor setting jigs could not be used in positions such as inside a cylinder or at the very edge of an anchor setting jig depending on the shape of the anchor bolt attachment fitting. To solve the above-mentioned problems, this invention aims to provide an anchor setting jig that allows for easy and highly accurate leveling of the anchor bolt tip without requiring special technical skills, and without having to hold the anchor bolt with one hand. [Means for solving the problem]

[0005] The anchor setting jig of the present invention is used when setting the level of the tip of an anchor bolt embedded in a concrete foundation, and comprises a rod-shaped level receiving member of a predetermined length and an anchor setting shaft member having a diameter smaller than the diameter of the rod-shaped level receiving member and attached to the lower end of the rod-shaped level receiving member, and further comprises an indicator member at the lower end of the anchor setting shaft member which serves as an indicator of the tip of the anchor bolt when setting the anchor bolt, and the indicator member is made of a magnetic material. [Effects of the Invention]

[0006] This invention eliminates the need to manually hold anchor bolts as in conventional methods, increasing precision and improving work efficiency. Furthermore, it allows for leveling by supporting the anchor bolts right up to the edge of the tube and anchor fixing device. [Brief explanation of the drawing]

[0007] [Figure 1] This is a perspective view of the anchor set jig according to the present invention. [Modes for carrying out the invention]

[0008] The following describes the embodiments for implementing the anchor set jig according to the present invention, based on Figure 1. 1 is an anchor set jig, which consists of a rod-shaped level receiving member 2 of a predetermined length and an anchor set shaft member 3 having a diameter smaller than the diameter of the rod-shaped level receiving member 2 and attached to the lower end of the rod-shaped level receiving member 2. Furthermore, a magnet 3a is provided at the lower end of the anchor set shaft member 3 as an indicator member that serves as a guide for the tip of the anchor bolt when setting the anchor bolt. The length of the rod-shaped level support member 2 is approximately 500 to 1500 mm, and its diameter should be such that it can be firmly gripped with one hand. The diameter of the anchor set shaft member 3 is approximately 5 to 10 mm. In this embodiment, a magnet 3a is used as a support member attached to the lower end of the anchor set shaft member 3, but any magnetic material will suffice. Furthermore, the material of the rod-shaped level support member 2 may be any of iron, aluminum, wood, or plastic, as described in claim 2. Also, if a fully threaded shaft member is used for the anchor set shaft member 3, as described in claim 3, level adjustment and attachment of the magnet 3a, which will be described later, will be easier. This extremely simple shape allows it to be used without any problems inside tubes or in positions very close to anchor fasteners.

[0009] Next, the method of using the anchor set jig according to the present invention will be explained. First, attach (or mark) the light receiver to the rod-shaped level receiving member 2 and perform the level measurement. Next, the tip of the anchor bolt is magnetically attached to the magnet 3a, and in this state, the anchor bolt is held and fixed to the anchor bolt mounting bracket. In rare cases where the anchor is installed in a cylindrical anchor fixture located deep inside (approximately 50mm to 100mm), the anchor set shaft member 3 can be adjusted to magnetically attach the anchor bolt to the magnet 3a for installation. In this process, the level of the magnet 3a attached to the lower end is adjusted by rotating the anchor set shaft member 3. [Explanation of symbols]

[0010] 1. Anchor set jig 2. Rod-shaped level support member 3 Anchor set shaft member 3a Magnet (indicator)

Claims

1. An anchor setting jig used for setting the level of the tip of an anchor bolt embedded in a concrete foundation, wherein the anchor setting jig comprises a rod-shaped level receiving member of a predetermined length and an anchor setting shaft member having a diameter smaller than the diameter of the rod-shaped level receiving member and attached to the lower end of the rod-shaped level receiving member, and further comprising an indicator member at the lower end of the anchor setting shaft member that serves as an indicator of the tip of the anchor bolt when setting the anchor bolt, the indicator member being made of a magnetic material.

2. The anchor set jig according to claim 1, characterized in that the material of the rod-shaped level receiving member is one of iron, aluminum, wood, or plastic.

3. The anchor set jig according to claim 1, characterized in that the anchor set shaft member is a fully threaded shaft member.

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