JPH07260403A - Inspection instrument for pressure welded part of reinforcing rod - Google Patents

Abstract

PURPOSE:To check the pressure welded part of a reinforcing rod for satisfying specified criteria easily and accurate in the field using a dedicated instrument. CONSTITUTION:A first gauge member 10 is brought into contact, on the side face part thereof along the longitudinal direction, with the pressure welded part of a reinforcing rod. A second gauge member 20 is shifted in the direction substantially perpendicular to the first gauge member 10 thus bringing the second gauge member 20 into contact, on the end part 22 thereof, with the peripheral part of the reinforcing rod 2 on one side of the pressure welded part. Furthermore, a slide member 40 is slid along the longitudinal direction of the first gauge member 10 and a third gauge member 30 is shifted in direction substantially perpendicular to the slide member 40 thus bringing the third gauge member 30 into contact, on the end part thereof, with the peripheral part of the reinforcing rod 3 on the other side of the pressure welded part. Dimensional graduations 14, 24 and 34 are then read out on the first, second and third gauge members 10, 20 and 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing bar pressure welding portion inspection instrument for inspecting on-site whether the pressure welding portion of a reinforcing bar is within a predetermined standard.

[0002]

2. Description of the Related Art In reinforcing bar construction at a construction site, when reinforcing bars are to be joined in the longitudinal direction, the joining surface is heated by a gas flame such as an oxygen acetylene flame and pressure welding is used, or the joining surface is electrically heated. The electric pressure welding method is used.

As an inspection of the pressure contact portion of such a reinforcing bar,
Sampling inspections are performed on-site based on the specifications (diameter, eccentricity, etc.) based on specifications.

Conventionally, the measurement has been carried out using a scale or a caliper, or the inspection has been carried out by visual check.

[0005]

However, in conventional inspections such as measurement with a scale or calipers and visual inspections, when the number of inspections of the pressure contact portion of the reinforcing bar becomes large, the inspection becomes considerably troublesome and troublesome. There is a problem that it is applied, and further, there is a problem that the amount of eccentricity of the pressure-reinforced rebar cannot be accurately grasped.

[0006] Therefore, an object of the present invention is to provide an instrument for inspecting a reinforcing bar pressure contact portion, which can easily and accurately perform on site whether or not the pressure contact portion of the reinforcing bar is within a predetermined standard. .

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention is a reinforcing bar pressure welding portion inspection instrument for inspecting the pressure welding portion of a reinforcing bar, which has a dimensional scale along the length direction thereof. A first gauge member whose side surface along the length direction is capable of abutting on the pressure contact portion of the reinforcing bar, and a first gauge member movably attached to the one end side along a direction substantially perpendicular to the first gauge member. A dimensional scale along a length direction substantially perpendicular to the first gauge member, and an end portion in the length direction can abut around the rebar on one side with the pressure contact portion interposed therebetween. A second gauge member is attached to the first gauge member so as to be movable in the length direction thereof and in a substantially right angle direction, and is attached in a substantially right angle direction to the first gauge member. Dimensional scale along the length direction of the End of the length direction around the rebar square side is characterized abutment capable third gauge member, a structure consisting of.

The third gauge member is, for example,
A slide member that is movably assembled to the first gauge member along its length direction is movably assembled to the first gauge member along a direction substantially perpendicular to the first gauge member.

[0009]

According to the present invention, the side surface portion of the first gauge member is brought into contact with the pressure contact portion of the reinforcing bar, and the second gauge member is moved in a direction substantially perpendicular to the first gauge member so that the end portion of the second gauge member is moved. While contacting the periphery of the reinforcing bar on one side across the pressure contact portion, the third gauge member is moved in the lengthwise direction and the substantially right angle direction with respect to the first gauge member, and the end portion thereof is moved to the pressure contact portion. It is easy to inspect the press-contact part on site by putting it in contact with the periphery of the reinforcing bar on the other side with the pinch in between and reading the dimensional scales of these first gauge member, second gauge member and third gauge member. You can do it.

That is, since it is possible to easily measure the amount of eccentricity of the pressure-contacted rebar and the bulge (diameter, length) of the pressure-contact portion, it is possible to accurately inspect the pressure-contact portion by checking the eccentricity amount and the bulge of the pressure-contact portion. .

By providing a slide member, the first
The third gauge member can be moved along the length direction of the gauge member.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the reinforcing bar pressure welding portion inspection device according to the present invention will be described below with reference to FIGS. 1 to 4.

First, FIG. 1 is a front view showing an example of a reinforcing bar pressure welding portion inspection instrument according to the present invention. 10 is a first gauge member, 20 is a second gauge member, and 30 is a third gauge member. Reference numeral 40 denotes a slide member, which is shown in FIG.
A plan view and a bottom view are shown in (a) and (b).

The first gauge member 10 is shown in FIGS.
In the illustrated example, the plate member 11 is vertically (upper and lower) elongated and elongated, as shown in FIG. A lateral slide hole 12 is formed in the plate member 11 on the upper end side in the drawing in the direction perpendicular to the length direction (left and right direction of the plate member 11), and is separated downward from the lateral slide hole 12. From the open portion to the lower end in the figure, a vertically long vertical slide hole 1 that also penetrates in the right-angled direction (the horizontal direction of the plate material 11)
3 is formed.

Further, dimensional scales 14, 14 are formed on both left and right sides of the surface of the plate member 11, respectively.
In the illustrated example, the right and left dimensional scales 14 and 14 have a scale number "0" [cm] on the lower surface of the lateral slide hole 12 on the upper end side, and a scale number "1" on the lower side.
"2", "3", "4", "5", "6", "7" [c
In the order of [m], the scale is in units of [mm] up to the scale number "8" [cm]. Conversely, in the illustrated example, the scale on the left side is the scale number "8" on the lower surface of the lateral slide hole 12.
As [cm], the scale numbers “7”, “6”,
The scale is in units of [mm], which is the scale number “0” [cm] in the order of “5”, “4”, “3”, “2”, “1” [cm]. Such scales may be provided on both front and back surfaces.

Further, a longitudinal slit 15 penetrating the vertical slide hole 13 inside the plate material 11 is formed in the central portion on the right and left sides of the surface of the plate material 11 along substantially the entire length of the vertical slide hole 13. There is.

As shown in FIG. 1, the second gauge member 20 is composed of a plate member 21 which is slightly laterally long and substantially rectangular in the illustrated example. The plate member 21 is slidably incorporated in the lateral slide hole 12 of the first gauge member 10, and has a tip 22 formed by a right-angled surface on the right side of the drawing, and has a vertical width on the left side of the drawing. Forming a stopper portion 23 having a large size.

Further, dimensional scales 24, 24 are formed on both upper and lower sides of the surface of the plate member 21, respectively.
In the illustrated example, the upper and lower dimension scales 24, 24 are on the lower side, but the right-angled surface of the tip portion 22 has a scale number "0" [c.
m], the scale numbers “1”, “2”, “1” on the left side
In the order of [cm], the end face position of the stopper portion 23 is a scale in units of [mm] such that the scale number becomes “0” [cm] again.
The right-angled surface of the stopper is the scale number "2" [cm], and the end face position of the stopper portion 23 is again scale number "2" [in the order of scale numbers "1", "0", "1" [cm] to the left. cm]
The scale is in [mm] units. Such scales may be provided on both front and back surfaces.

A horizontally long slit 25 is formed in the central portion of the plate material 21 on the front side in the vertical direction.

This plate 21 is shown in FIG. 1, FIG. 2 and FIG.
As shown in (a), the plate material 11 is slidably incorporated in the lateral slide hole 12 on the upper end side in the drawing.
In this way, the second gauge member 20 is assembled so as to be movable in the right-angled direction (left-right direction) with respect to the first gauge member 10 whose longitudinal direction is the vertical direction (up-down direction).

The first gauge member 10 has a second
Fixing screw 2 penetrating the slit 25 of the gauge member 20 of
6 is attached. In addition, in FIG. 3A, a covering member 27 that encloses the stopper portion 23 is provided.

Like the second gauge member 20, the third gauge member 30 is also composed of a plate member 31 which is slightly laterally long and is substantially rectangular in the example shown in FIG. And a stopper portion 33 whose width is increased in the vertical direction on the left side in the drawing.

Then, on both upper and lower parts of the surface of the plate member 31,
Similar to the second gauge member 20, dimensional scales 34, 3
4 respectively. That is, the upper and lower dimensional scales 34, 34 are also lower in the illustrated example, but the right-angled surface of the tip portion 32 has the scale number "0" [cm] and the scale numbers "1", "2" on the left side. , The end face position of the stopper portion 33 is again in the order of "1" [cm], and the scale is "0" [cm], and the scale is in units of [mm]. The right-angled surface of the tip portion 32 has a scale number "2" [cm], and a scale number "1" on the left side,
The end face position of the stopper portion 33 is again in the order of "0" and "1" [cm], and the scale is again in the unit of [mm], which is the scale number "2" [cm]. Such scales may be provided on both front and back surfaces.

Further, a laterally long slit 35 is formed in the central portion of the upper and lower widths on the front surface side of the plate member 31, like the second gauge member 20. The plate member 31 is incorporated in a slide member 40 described later.

As shown in FIGS. 1, 2 and 3 (b), the slide member 40 is a plate member 41 which is slightly vertically long and is substantially rectangular in the illustrated example. The plate member 41 is slidably incorporated in the vertical slide hole 13 of the first gauge member 10, and is a lateral slide hole that penetrates in the direction perpendicular to the length direction (the horizontal direction of the plate member 41). 42 is formed.

The plate member 31 of the third gauge member 30 is slidably installed in the lateral slide hole 42 of the slide member 40, and the plate member 41 of the slide member 40 is connected to the first gauge member 10 described above. It is slidably incorporated in the vertical slide hole 13. Thus, with respect to the first gauge member 10 whose longitudinal direction is the vertical direction (vertical direction),
The slide member 40 is movably assembled along the lengthwise direction, and the third gauge member 30 is movably assembled to the slide member 40 in the right-angled direction (left-right direction).

The first gauge member 10 has a third
Through the slit 35 of the gauge member 30 of
A fixing screw 36 penetrating the slide member 40 is attached. Further, the slide member 40 has upper and lower fixing screws 46, which penetrate the slit 15 of the first gauge member 10,
46 is attached. In addition, in FIG.
A covering member 37 that encloses the stopper portion 33 is provided.

How to use the reinforcing bar pressure welding portion inspection instrument of the present embodiment constructed as described above will be described below.

First, the inspection target is, for example, the pressure contact portion of the reinforcing bar as shown in FIG. 4, in which 1 is the pressure contact portion,
2 and 3 are upper and lower reinforcing bars. Further, in the figure, a is the amount of bulge from the reinforcing bar 2 on the upper side of the pressure contact portion 1, b is the length of the bulge of the pressure contact portion 1 (vertical width), and c is the reinforcing bar 3 on the lower side of the pressure contact portion 1.
Bulge amount, d is the diameter of the rebars 2, 3 and e is the rebar 2,
The eccentric amount of the center of 3 and A indicate the diameter of the bulge of the press contact portion 1, respectively.

Here, in the reinforcing bar pressure welding portion inspection device of this embodiment, the lateral width of the plate member 11 of the first gauge member 10 is 2 cm (20 mm). Therefore, the bulge amount a from the reinforcing bar 2 on the upper side of the pressure contact portion 1 can be measured from 0 to 20 mm by the dimension scale 24 of the second gauge member 20, and from the reinforcing bar 3 on the lower side of the pressure contact portion 1. Also regarding the bulge amount c of the third gauge member 30,
4, it is possible to measure 0 to 20 mm. Further, the length (vertical width) b of the press contact portion 1 can be measured from 0 to 80 mm by the dimension scale 14 of the first gauge member 10.

That is, since the lateral width of the plate member 11 of the first gauge member 10 is 2 cm (20 mm),
2 along the lateral slide hole 12 of the gauge member 10
Move and adjust the gauge member 20 of the
Therefore, it can be measured in the range of 0 to 20 mm. Then, the third gauge member 30 is moved and adjusted along the horizontal slide hole 42 of the slide member 40 incorporated in the vertical slide hole 13 of the first gauge member 10, and the dimension scale 3 thereof is adjusted.
4, the measurement can be performed in the range of 0 to 20 mm. further,
The slide member 40 in which the third gauge member 30 is incorporated in the lateral slide hole 42 is moved and adjusted along the vertical slide hole 13 of the first gauge member 10, and the dimensional scale 14 of the first gauge member 10 is adjusted. Therefore, it can be measured in the range of 0 to 80 mm. In addition, the rebar pressure contact portion inspection instrument of the present embodiment can cope with a change in the diameter of the rebar within a range of 19 to 50 mm.

The inspection by the above-mentioned rebar pressure welding part inspection device is based on, for example, a standard specification of gas pressure welding work,
If the second gauge member 20 and the third gauge member 30 (including the slide member 40) are fixed to the first gauge member 10 in advance with the specified numerical values and used, whether or not it is within the standard. Easy to judge. In addition, the second gauge is applied to the first gauge member 10 by applying it to the reinforcing bar and the pressure contact portion.
It is also possible to fix the gauge member 20 and the third gauge member 30 (including the slide member 40) and read the respective dimensional scales 14, 24, 34 to measure them.

In summary, when using this rebar pressure contact portion inspection instrument, as shown in FIG. 1, the tip 22 of the second gauge member 20 is applied to the rebar 2 on the upper side, and
The tip portion 32 of the third gauge member 30 is applied to the lower reinforcing bar 3. Then, for example, with the reference value based on the instruction sheet, the second fixing screw 26, 36, 46, 46 is used in advance.
By fixing the gauge member 20 and the third gauge member 30 (including the slide member 40) to the first gauge member 10 respectively, whether the pressure contact portion 1 (see FIG. 4) is within the reference or not. Can be easily determined.

If one example of the standard specifications for gas pressure welding work is described, the diameter A of the bulge of the pressure welding portion 1 is as follows.
Is 1.4 times or more the diameter d, and the bulge length (vertical width) b of the press contact portion 1 is 1.2 times or more the diameter d of the reinforcing bars 2 and 3, and The eccentricity e is 1/5 or less of the diameter d of the reinforcing bars 2 and 3. That is, if expressed by the formula, A ≧
1.4d, b ≧ 1.2d, and e ≦ 0.2d. Then, a−c = e.

Further, for example, the side surface portion of the first gauge member 10 is applied to the pressure contact portion 1 (see FIG. 4), the tip portion 22 of the second gauge member 20 is overlapped on the pressure contact portion 1, and the third The second gauge member 20 and the third gauge member 30 (including the slide member 40) are fixed by the fixing screws 26, 36, 46, 46 in a state in which the tip portion 32 of the gauge member 30 of FIG. By fixing each to the first gauge member 10, the respective dimensional scales 14, 24, 34 are read, and the swelling amount a from the reinforcing bar 2 on the upper side of the pressure contact portion 1 and the lower side of the pressure contact portion 1 are read. The swelling amount c from the reinforcing bar 3 and the swelling length (vertical width) b of the pressure contact portion 1 can be measured.

As described above, by using the rebar pressure welding portion inspection device of this embodiment, the pressure welding portion can be easily and accurately inspected on site, that is, the pressure welding rebars 2, 3
The eccentricity amount e and the bulge (diameter A, length b) of the pressure contact portion 1 can be easily measured. Thus, the pressure contact portion 1 can be accurately inspected by checking the eccentricity e and the bulge, and the inspection time can be shortened and accurate data can be collected.

In each of the above embodiments, each gauge member made of a plate material is used, but the present invention is not limited to this. For example, a gauge member made of a round material or a square material may be used. Further, the material and shape of the gauge member are arbitrary, and the vertical positional relationship between the second gauge member and the third gauge member may be the reverse of that of the embodiment, and other specific detailed structures and the like. Of course, it can be changed appropriately.

[0038]

As described above, according to the reinforcing bar pressure welding portion inspection device of the present invention, the side surface portion of the first gauge member is brought into contact with the pressure welding portion at the site, and the end of the second gauge member is contacted. The portion is brought into contact with the periphery of the reinforcing bar on one side with the press contact portion interposed therebetween, and the end portion of the third gauge member is brought into contact with the periphery of the reinforcing bar on the other side with the press contact portion interposed therebetween. By simply reading the dimensional scales of the second gauge member, the second gauge member, and the third gauge member, the inspection of the pressure contact portion can be simplified.
And it can be done accurately.

That is, since it is possible to easily measure the amount of eccentricity of the pressure-reinforced rebar and the bulge (diameter, length) of the pressure-contact portion, the pressure-contact portion can be accurately inspected by checking the eccentricity amount and the pressure-contact portion bulge. Therefore, the inspection time can be shortened and accurate data can be collected.

By providing the slide member as described in claim 2, the third gauge member can be moved along the length direction of the first gauge member.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a reinforcing bar pressure contact inspection device according to the present invention.

FIG. 2 is a side view of the reinforcing bar pressure contact inspection device of FIG.

3A and 3B show upper and lower end surfaces of the reinforcing bar pressure welding portion inspection device in FIG. 1, in which FIG. 3A is a plan view seen from above, and FIG. 3B is a bottom view seen from below.

FIG. 4 is a schematic front view showing the specifications of a reinforcing bar pressure contact portion to which the present invention is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pressure contact part 2,3 Reinforcing bar 10 1st gauge member 11 Plate material 12,13 Slide hole 14 Dimension scale 15 Slit 20 2nd gauge member 21 Plate material 22 End part 23 Stopper part 24 Dimension scale 25 Slit 26 Fixing screw 30 3rd Gauge member 31 Plate material 32 End part 33 Stopper part 34 Dimension scale 35 Slit 36 Fixing screw 40 Sliding member 41 Plate material 42 Sliding hole 46 Fixing screw

Claims (2)

[Claims] 1. A rebar pressure welding part inspection instrument for inspecting a pressure welding part of a reinforcing bar, comprising dimensional scales along a length direction, and a side surface portion along the length direction of the pressure welding part of the rebar. A first gauge member that is capable of abutting against the first gauge member, and a first gauge member that is attached to one end side of the first gauge member such that the first gauge member is movable in a direction substantially perpendicular to the first gauge member, and a length that is substantially perpendicular to the first gauge member. A second gauge member having a dimensional scale along the direction, and an end portion in the length direction of the first gauge member, which is in contact with the periphery of the reinforcing bar on one side with the pressure contact portion interposed therebetween; It is mounted so as to be movable along its lengthwise direction and also movable along its substantially right-angled direction, and has a dimensional scale along its lengthwise direction substantially perpendicular to the first gauge member, The end in the length direction can come into contact with the periphery of the reinforcing bar on the other side across the section. An instrument for inspecting a rebar pressure contact portion, which comprises an effective third gauge member. 2. The third gauge member is substantially perpendicular to the first gauge member with respect to a slide member movably assembled to the first gauge member along its length direction. The rebar pressure welding portion inspection instrument according to claim 1, wherein the instrument is attached so as to be movable along the.