JP2500107Y2 - Measuring jig - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a jig for a measuring instrument used for measuring the total length, floor height, joint length, joint diagonal length, and composition of steel frame products at the time of inspection.

[0002]

2. Description of the Related Art Conventionally, pillars and beams of steel frame products used for building construction, etc. are manufactured individually in a factory, and the individual steel frame products are joined and assembled at a construction site,
It's a building. Joints are formed in steel products to connect columns and beams.

In order to control the quality of such a steel frame product, the length of each pillar / beam, floor height, joint length, joint diagonal length, composition, etc. are determined based on the center of the hole. I am measuring. Then, in order to measure the hole center of the object to be measured, a vertical perpendicular line is drawn on the contact points on both sides of the hole, and the center of each perpendicular line is taken as the center point at a proper place above and below this perpendicular line. Find the ruled line connecting the points as the center of the hole,
A straight scale was applied to read the length between the score lines connecting the center points. Further, in the case of measurement by a coordinate measuring machine equipped with an optical distance meter, a reflector having a cross center line is fixed on each hole core, and near-infrared light is applied to the center point of the reflector. Upon aiming, the distance between the reflector bodies is calculated from the reflected light from each reflector.

[0004]

In the above-mentioned conventional example, a ruled line must be filled in each time the center of the hole is obtained, which is not only troublesome work and labor, but also the accuracy of the ruled line varies from person to person. There was a problem that the distance between the center holes could not be measured accurately.

In this regard, for example, the actual Kaihei 2-9760
Japanese Patent No. 1 discloses a support part that can be inserted into a hole of an object to be measured.
Then, using the mark line formed on the upper surface of this support
A size indexing device for determining the distance between the hole cores has been disclosed.
It However, in such an instrument, the diameter of the hole of the DUT is
If they are different, rattling may occur in the support part and dimensional errors may occur.
There is. Therefore, the mark line itself is the center position of the hole.
Is not displayed, and the length between the center of the hole can be measured accurately.
I can't.

The present invention solves the above-mentioned problems and provides an object to be measured.
Even if the hole diameters of the
The purpose is to provide a measuring jig that can be set .

[0007]

SUMMARY OF THE INVENTION The present invention relates to an object to be measured.
Has a curved part that can be fitted into a joint hole formed at a distance.
Then, the cross-shaped center line is formed on the horizontal plane by the leaf spring-like elastic member.
Enter the U-shaped support and the scale with the cross center line.
And a cross center line of the supporting portion and the scale.
The supporting portion so that the center line of the cross portion of the base portion is aligned with
It is provided integrally with the horizontal surface formed on the upper surface of
It

[0008]

With the above structure, the supporting portion is a leaf spring-like elastic member.
Therefore, even if the diameter of each joint hole is different,
Insert the curved part of the support part into the joint hole against the elasticity of the part.
The cross of the scale that matches the center line of the cross of the support.
Accurately measure the distance between the centers of joint holes using the center line
it can.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 3 show a first embodiment of the present invention, in which a beam 1 of a steel frame product as an object to be measured is provided with a flange portion 3 on both sides of a web plate 2 and the flange portion 3 A plurality of holes 4 and 5 for fastening bolts are formed in this. On the other hand, in the measuring jig of the present invention,
Is a support piece which is a support portion made of a leaf spring-like elastic member in which a cross center line 8 indicating the center position is written on a rectangular horizontal portion 7 formed on the upper surface. A pair of curved portions 9 and 9 are formed from both ends so as to be fitted into the holes 4 and 5 of the beam 1 of the steel frame product which is the object to be measured. Then, the scale portion 11 made of transparent acrylic having the cross-shaped center line 10 indicating the center position on the upper surface is arranged so that the center line 10 and the center line 8 are aligned with each other, and the horizontal portion 7
The support piece 6 and the scale portion are integrally provided on the upper side.
The jig body 12 is constituted by 11 and.

Next, the operation of the above configuration will be described.

First, when the jig main body 12 is inserted into the hole 4 provided on one side of the beam 1 of the steel frame product while pressing the curved portions 9 and 9 of the support piece 6, The bottom surface 11A of the scale portion 11 having a large diameter with respect to the hole 4 comes into contact with the flange portion 3 and is temporarily fixed. Similarly, when another jig body 12 is inserted into the hole 5 on the other side from the curved portions 9 and 9 of the support piece 6, the bottom surface 11A of the scale portion 11 engages with the flange portion 3 and is temporarily fixed. The center position of the holes 4 and 5 is the support piece 6.
Center point 8A where the center line 8 of the
It coincides with the center point 10A of the center line 10 of 11. In this state, a straight scale 13 can be placed between the center points 10A of the pair of scale portions 11 to accurately measure the length between the holes 4 and 5.

As described above, according to the above embodiment, the holes 4,
The center of each hole 4, 5 can be easily obtained by simply inserting the support piece 6 into the hole 5 without depending on the skill level of the operator. A troublesome work such as performing is unnecessary, and the distance between the centers of the holes 4 and 5 can be accurately measured.

Further, since the curved portions 9 and 9 of the support piece 6 inserted into the holes 4 and 5 have elasticity, even if the diameters of the holes 4 and 5 are different , the elasticity of the support piece 6 is resisted. Supported in holes 4 and 5
Simply insert the curved parts 9, 9 of the piece 6 and the cross of the support piece 6
Use the cross center line 10 of the scale 11 that matches the center line 8
Then, the distance between the centers of the holes 4 and 5 can be accurately measured.

FIG. 4 and FIG. 5 show a second embodiment of the present invention. The same parts as those of the first embodiment are designated by the same reference numerals, and the common description of their construction will be omitted.

In the present embodiment, reference numeral 21 is a sheet-like reflector which has a center line 22 indicating the center position printed on the surface and is capable of reflecting light rays in the near infrared region. The reflecting plate 21 is provided on the surface 11B of the scale portion 11 such that the center line 22 coincides with the center line 10 of the scale portion 11. And each hole 4,
The jig main body 23 is inserted into the 5 from the curved parts 9 and 9, and the near-infrared light is irradiated to the center point 22A of each reflector 21 from the measuring device main body 25 which is rotatably mounted on the tripod 24 and equipped with the optical distance meter. Simply, the reflected light from the reflection plate 21 is detected by the measuring device body 25, and the data collector 26 connected to the measuring device body 25 for calculating and storing the central coordinate values of the holes 4 and 5, Three-dimensional measuring device 28 including computer device 27 for analysis
Thus, data processing can be performed to mutually and accurately measure the length between the plurality of holes 4 and 5. Also in this case,
The curved portion of the support piece 6 is formed in the holes 4 and 5 against the elasticity of the support piece 6.
Simply insert 9 and 9, and
Use the center line 22 of the reflector 21
The distance between can be measured accurately.

The present invention is not limited to the above-mentioned embodiment, and the shape of the support piece can be appropriately changed depending on the size of the hole or the like. Further, it is also possible to integrally form the support piece and the scale portion without forming separate bodies, or to directly provide a reflection plate having a center line formed on the upper surface of the support piece.

[0017]

[Effect of the Invention] The present invention forms the object to be measured at intervals.
Has a curved portion that can be fitted into the joint hole
U-shaped support made of flexible material with the center of the cross on the horizontal plane
It has a holding part and a scale part with a cross center line.
Center line of the cross of the support part and center line of the cross of the scale part
Is formed on the upper surface of the support part so that
It is an integral part of a horizontal
Accurately measure the distance between the centers of holes even if the diameters are different
We can provide measurement jigs.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a jig body showing a first embodiment.

FIG. 2 is a perspective view of a main part showing the first embodiment.

FIG. 3 is a perspective view showing a first embodiment.

FIG. 4 is a cutaway perspective view of essential parts showing a second embodiment.

FIG. 5 is a perspective view showing a second embodiment.

[Explanation of symbols]

1 H-section steel (measurement object) 4, 5 hole (joint hole) 6 Support piece (support part) 7 Horizontal part 8 Cross center line 9 Curved part 10 Cross center line 11 Scale part 21 Reflector (scale part) 22 Center line (Cross center line)

Claims (1)

(57) [Scope of utility model registration request] 1. An elastic member in the form of a leaf spring, which has a curved portion that can be fitted into joint holes formed at intervals in the object to be measured.
U-shaped support with a cross center line on the horizontal
And a scale part having a center line of a letter, the support part
Align the center line of the cross with the center line of the scale.
To the horizontal part formed on the upper surface of the support part.
Measuring jig characterized by being provided integrally .