JP2645260B2 - Measuring method of pitch between anchor bolts and jig thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring a pitch between anchor bolts erected on a foundation of a building and a jig for the method.

[0002]

2. Description of the Related Art Conventionally, pitch measurement between anchor bolts erected on a foundation for inspection or the like performed after construction of a foundation is performed by setting a reference point of a scale to the center of an anchor bolt serving as a reference and setting another reference point to another. This was done by measuring the length to the center of the anchor bolt in order.

[0003]

According to the conventional example, at least two persons are required to measure the pitch between the anchor bolts, and there is a problem that the measurement cannot be performed by one person. Therefore, an object of the present invention is to provide a measuring method capable of measuring the pitch between anchor bolts by one person and a jig used for the method.

[0004]

In order to solve the above-mentioned problems, according to the present invention, one end of a scale is rotated about the anchor bolt through a jig attached to an upper end of an anchor bolt erected on a foundation. It is fixed so as to straddle the upper end of the anchor bolt freely, and then the scale is rotated to measure the pitch between each anchor bolt in multiple directions along the upper end of the anchor bolt.

A base is formed by fixing a nut screwed to an anchor bolt erected on the base on the lower surface of the flat plate,
On the upper surface of the base, a scale fixing jig may be used in which a pressing hardware including a base and a protrusion provided on the base is fixed with a screw.

Further, a scale fixing jig provided with a pair of the protruding portions spaced apart from each other may be used.

Further, a scale fixing jig provided with a non-slip between the projection and the base may be used.

[0008]

According to the above construction, the pitch between each anchor bolt in a plurality of directions can be measured by fixing the scale to the upper end of the anchor bolt via the jig so as to be rotatable around the anchor bolt. Since the scale is provided so as to straddle the upper end of the anchor bolt, the scale can be measured without crossing the anchor bolt that exists between the anchor bolt to which the pitch is to be measured and the anchor bolt to which the scale is fixed. Sometimes, the scale is horizontal, so it is possible to measure accurately.

Further, the pitch between the anchor bolts can be measured alone by fixing the scale to a scale fixing jig screwed to the upper end of the anchor bolt. Further, since the scale fixing jig is screwed and attached to the anchor bolt, the scale fixing jig is rotatable, so that the pitch in a plurality of directions can be measured without re-fixing the scale.

When a pair of protrusions is provided, the scale can be fixed securely.

When a non-slip is provided between the projection and the base, the scale can be fixed securely.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, as shown in FIGS. 1 to 4, a scale fixing jig 2 is used to freely rotate around the anchor bolt 1 and attach the upper end of the anchor bolt 1 to the upper end of the anchor bolt 1 erected on the foundation. One end of the scale 3 is fixed so as to be straddled, and the pitch between the anchor bolts 1, 1,... In a plurality of directions is measured.

Scale fixing jig 2 for fixing scale 3
Consists of a base 4, a base 10, which is in contact with the upper surface of the base 4 and is fixed by a screw 6 such as a thumb screw, and a pressing hardware 5 composed of a protrusion 11. The base 4 is formed by fixing a nut 7 to be screwed to the anchor bolt 1 on the lower surface of the flat plate by fillet welding or the like, and has an inner diameter slightly larger than the outer diameter of the anchor bolt 1 so as to coincide with the center of the nut 7. A through hole 8 is provided in a flat plate. In addition, a step 9 is provided on the side of the through hole 8 so that a surface on which the lower surface of the base 10 along the scale 3 abuts is raised, and a screw hole for screwing the screw 6 is provided.

The pressing hardware 5 is constituted by providing a protruding portion 11 for sandwiching the scale 3 at intervals on a base 10 made of a flat plate. Projection 11 is scale 3 along step 9
Is provided between the base 4 and the base 4 so as to be fixed. A non-slip 12 such as rubber is wound around the entire circumference of the protruding portion 11 so as not to slip when the scale 3 is sandwiched.

Next, a method of measuring the pitch between anchor bolts erected on a foundation using the scale fixing jig 2 of the present embodiment will be described. First, the scale fixing jig 2 of this embodiment is screwed into the upper end of the anchor bolt 1 of the foundation. At this time, the upper end of the anchor bolt 1 and the upper surface of the base 4 should be positioned on substantially the same horizontal plane. Next, the screw 6 is loosened, the scale 3 is sandwiched under the protrusion 11, the scale 3 is aligned with the reference point at the center of the anchor bolt 1, and the screw 6 is tightened and fixed. Then, as shown in FIG. 3, the scale 3 is extended to the center of each of the other anchor bolts 1, 1,. At this time, scale fixing jig 2 is anchor bolt 1
It is rotatable because it is screwed and attached to
It is possible to measure the pitch between the anchor bolts in a plurality of directions without re-fixing the scale 3.

Further, in order to easily align the reference point of the scale 3 with the center of the anchor bolt 1, the anchor bolt 1
May be written on the upper surface of the base 4 in advance.

In this embodiment, the step 9 is provided so that the surface of the flat plate contacting the base 10 is raised, and the step 9 is provided opposite to the lower surface of the projection 11. It may be reversed.

Further, in the present embodiment, the non-slip 12 is wound around the projection 11, but the non-slip 12 may be attached to the lower surface of the projection 11, as shown in FIG.

[0019]

The present invention is as described above. By fixing a scale to the upper end of an anchor bolt via a jig so as to be rotatable around the anchor bolt, the pitch between each anchor bolt in a plurality of directions can be adjusted. Can be measured.
Since the scale is provided so as to straddle the upper end of the anchor bolt, the scale can be measured without crossing the anchor bolt that exists between the anchor bolt to which the pitch is to be measured and the anchor bolt to which the scale is fixed. Sometimes, the scale is horizontal, so it is possible to measure accurately.

Further, according to the scale fixing jig of the present invention, the pitch between the anchor bolts can be measured alone by fixing the scale to the scale fixing jig screwed to the upper end of the anchor bolt. Further, since the scale fixing jig is screwed and attached to the anchor bolt, the scale fixing jig is rotatable, so that the pitch in a plurality of directions can be measured without re-fixing the scale.

When a pair of protrusions is provided, the scale can be securely fixed.

When a non-slip is provided between the projection and the base, the scale can be fixed securely.

[Brief description of the drawings]

FIG. 1 shows a scale fixing jig showing one embodiment of the present invention, wherein (a) is a plan view, (b) is a bottom view, and (c).
Is a side view.

FIG. 2 is a longitudinal sectional view showing a use state of a scale fixing jig showing one embodiment of the present invention.

3 (a) is a front view and FIG. 3 (b) is a plan view showing a use state of a scale fixing jig showing one embodiment of the present invention.

FIG. 4 is a side view of a scale fixing jig showing another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Anchor bolt 2 Scale fixing jig 3 Scale 4 Base 5 Press hardware 6 Screw 7 Nut 10 Base 11 Projecting part 12 Non-slip

Claims (4)

(57) [Claims] An end of a scale is fixed via a jig attached to an upper end of an anchor bolt erected on a foundation so as to be rotatable around the anchor bolt and straddle the upper end of the anchor bolt. A method for measuring a pitch between anchor bolts, comprising rotating the scale and measuring a pitch between the anchor bolts in a plurality of directions along an upper end of another anchor bolt. 2. A base to which a nut to which an anchor bolt erected on a base is screwed is fixed to a lower surface of a flat plate, a base portion which is in contact with an upper surface of the base and is fixed by screws, and provided on the base portion. A scale fixing jig having a pressing hardware having a protrusion. 3. The scale fixing jig according to claim 2, wherein a pair of projecting portions are provided at an interval from each other. 4. The scale fixing jig according to claim 2, wherein a non-slip is provided between the projecting portion and the base.