JPH10267605A - Measuring instrument for thickness of fireproofing coating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable measuring instrument with which the thickness or defectless/defective state of a fireproofing coating can be recognized immediately by only inserting a measuring needle regardless of the position of the fireproofing coating, whether on a horizontal surface or vertical surface. SOLUTION: A measuring instrument for measuring thickness of fireproofing is composed of a member 1 for measuring horizontal surface provided with a needle bar 4 which is inserted into a fixed cover 3 together with a needle 6 for measuring horizontal surface attached to one end and carries scale divisions 7 marked in the axial direction on the other end which is protruded from the rear end of the cover 3 and member 2 for measuring vertical surface provided with a needle bar 12 which is inserted into a mobile cover 11 together with a needle 16 for measuring vertical surface attached to one end and carries scale divisions 17 marked in the axial direction one the other end section protruded from the rear end of the cover 11 and to which a member 14 for fixing needle bar passed through the axial slit 13 of the cover 11 is attached and the needle bar 12 of the member 2 is fixed to the fixed cover 3 of the member 1 in a crossing stage through the member 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool for measuring the thickness of a fire-resistant coating covering the surface of a building, such as a steel frame, and to measure the thickness of the coating immediately and easily by simply piercing a measuring needle. This is to make a judgment.

[0002]

2. Description of the Related Art Conventionally, when judging the thickness of a fire-resistant coating covering the surface of a steel frame or the like, a guide rod (often referred to as a stupid rod) having a length equal to the thickness of the fire-resistant coating is vertically applied to the surface of the steel frame or the like. ) Is attached in advance, and it is judged whether the thickness of the coating is acceptable or not by observing that the guide bar is hidden by the fire-resistant coating, or the insert material (ruler) colored by the position of the coating thickness is used as a fire-resistant coating. To determine the pass / fail of the coating thickness.

[0003]

However, the method of attaching a guide bar to a steel frame or the like in advance requires a lot of trouble and cost for installation, affects the construction period, and poses a danger when working at a high place. There are problems such as accompanying.

[0004] In addition, in the method using the insertion member, although the pass / fail of the coating thickness is known, several kinds of insertion members are required depending on the coating thickness, and data of the thickness is not known because the thickness dimension is not known. There is a problem that it is useless when it is desired.

Accordingly, the present invention has been made in view of such a conventional problem. In any of the refractory coatings on the horizontal plane and the vertical plane, the coating thickness and pass / fail can be easily determined simply by inserting a measuring needle. The purpose is to provide a portable measuring instrument that can be easily understood.

[0006]

A refractory coating thickness measuring instrument according to the present invention, which achieves the above object, has a needle for measuring a horizontal surface at one end thereof, is inserted into a cylindrical fixing cover, and is fixed to the fixing cover. A horizontal plane measuring member having a needle bar having an axial scale at the other end protruding outward from the rear end of the cover, and a cylindrical movable cover having a vertical plane measuring needle at one end is inserted through the movable cover. A needle bar having an axial scale at the other end protruding outward from a rear end of the movable cover, and the needle bar penetrating an axial slit provided in the movable cover. A vertical surface measuring member having a fixing member attached thereto, wherein the needle bar of the vertical surface measuring member is fixed to the fixed cover of the horizontal surface measuring member in a crossed state by the needle bar fixing member. And

For example, when measuring the thickness of the refractory coating on the ceiling portion, hold the fixed cover of the horizontal plane measuring member and the rear part of the needle bar, and pierce the coating until the tip of the needle bar hits the steel frame. Next, the fixed cover is pushed up toward the ceiling, and the front end surface of the cover is brought into contact with the surface of the fireproof coating. In that state,
The scale on the rear end side of the needle bar is read to measure the thickness of the fireproof coating on the horizontal surface.

When measuring the thickness of the fireproof coating on the wall portion, hold the fixed cover of the member for measuring the horizontal surface and hold the tip of the needle bar of the member for measuring the vertical surface until the tip of the needle bar hits the steel frame. Pierce. Then, the movable cover is pushed by the refractory coating and retracts while being guided by the needle bar fixing member passed through the slit. Then, at the limit, the scale on the rear end side of the needle bar is read to measure the thickness of the refractory coating on the vertical plane.

Here, a tension spring having one end fixed to the needle bar fixing member through a needle bar and the other end fixed to the movable cover is provided inside the movable cover of the vertical surface measuring member. Things. Thereby, the movable cover after the measurement is completed is returned to the original position by the tension spring and returned.

The horizontal plane measuring member may have a handle at the rear end of the needle bar. Thereby, the operation of the horizontal plane measuring member is facilitated. In addition, at least one of the fixed cover of the horizontal surface measuring member and the movable cover of the vertical surface measuring member may be provided with a flange that comes into contact with the surface of the refractory coating. This facilitates accurate and easy contact of the fixed cover or the movable cover with the surface of the fireproof coating.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall plan view of a refractory coating thickness measuring tool, FIG. 2 is a sectional view taken along the line II-II, and FIG. 3 is an operation explanatory view of a vertical surface measuring member.

First, the structure will be described. The refractory coating thickness measuring tool of this embodiment comprises a horizontal surface measuring member 1 and a vertical surface measuring member 2 mounted orthogonally thereto. The horizontal plane measuring member 1 is configured such that a needle bar 4 longer than this is fixed to a long rectangular cylindrical fixed cover 3 in the axial direction (the direction of arrow Z).
And is slidably inserted into it. In this case, the fixed cover 3 has a flange plate 5 fixed to the tip, so that it can be easily brought into contact with the surface of the fireproof coating. The needle bar 4 has a horizontal surface measurement needle 6 at the tip. On the other hand, the rear end side of the needle bar protrudes outward from the cover 3, and a scale 7 representing the thickness of the refractory coating is engraved in the axial direction on the protruding portion. The scale 7 may be color-coded for easy reading. A handle (grip) 8 for facilitating operation is attached to the rear end of the needle bar 4.

The vertical surface measuring member 2 has a relatively short cylindrical movable cover 11 in which a longer needle bar 12 is slidably inserted in the axial direction (in the direction of arrow X). A slit 13 extending in the axial direction is formed on the side surface of the. Then, the needle bar fixing member (plate piece) 14 is passed through the slit 13 and the needle bar fixing member 1
4 has one end fixed to the needle bar 12 in the movable cover 11 and the other end projected outside the movable cover 11. The needle bar 12 has a vertical surface measurement needle 16 at the tip, and the rear end side projects outward from the movable cover 11,
A scale 17 indicating the thickness of the refractory coating is engraved on the protruding portion in the axial direction. The scale 17 may be color-coded for easy reading. In this case, the needle bar 12 does not require a handle for facilitating the operation.

The movable cover 11 in this case is further provided with a spring storage space 18 on its inner surface.
A tension coil spring 19 passed through the needle bar 12 is accommodated therein. One end of the tension coil spring 19 is fixed to the needle bar 12 (may be fixed to the needle bar fixing member 14), and the other end is fixed to an end of the movable cover 11.

The horizontal plane measuring member 1 thus constructed
And the vertical surface measuring member 2 are integrated with the movable cover 1.
The end of the needle bar fixing member 14 protruding outside from the slit 13 is fixed to the outer surface of the fixing cover 3 of the horizontal plane measuring member 1.

Next, the operation will be described. When measuring the thickness of the refractory coating formed on the horizontal surface such as the ceiling, hold the fixed cover 3 of the horizontal surface measuring member 1 in one hand and the handle 8 at the rear end of the needle bar 4 with the other hand. Then, the handle 8 is pushed up to pierce the horizontal plane measurement needle 6 into the fireproof coating, and the tip of the needle is brought into contact with the steel frame. Thereafter, the fixed cover 3 is pushed up to bring the tip flange plate 5 into contact with the surface of the fireproof coating. If the scale 7 at the rear end of the needle bar 4 is read in this state, the thickness of the refractory coating on the horizontal surface can be easily measured.

After reading the thickness, the needle bar 4 is pulled out of the refractory coating, and it is possible to continuously measure the thickness of the refractory coating on the horizontal surface in other places in the same manner. When measuring the thickness of the refractory coating formed on the vertical surface such as the wall or the side of the beam, the vertical measurement member 2 having the fixing cover 3 and being fixed thereto via the needle bar fixing member 14 is provided. The needle 16 for measuring the vertical surface at the tip of the needle bar 12 is pierced into the refractory coating H as shown in FIG. Then, the tip of the movable cover 11 is pushed against the surface of the fireproof coating H, and the movable cover 11 starts to retreat. When the needle bar 12 is pushed in until the tip of the vertical plane measurement needle 16 hits the steel frame T, the movable cover 1
Since 1 retreats by the thickness of the refractory coating, the retreat distance can be read on the scale 17 at the rear end of the needle bar to easily measure the thickness of the refractory coating.

After the thickness is read, when the needle bar 12 is pulled out of the refractory coating H on the vertical plane, the movable cover 11 automatically returns to the original position shown in FIG.
Therefore, similarly, it is possible to continuously measure the thickness of the refractory coating on the vertical surface in other places.

In the above embodiment, the case where the tension spring 19 for automatically returning the movable cover 11 of the vertical plane measuring member 2 is provided is shown, but the tension spring 19 is not always necessary. Alternatively, the movable cover 11 may be returned to the original position by hand after the measurement is completed.

In the above-described embodiment, the handle 8 is shown at the rear end of the needle bar 4 of the horizontal surface measuring member 1. However, the handle 8 is not indispensable, and is directly behind the needle bar 4. The end portion may be operated by hand.

A fixed cover 3 for the horizontal surface measuring member 1
Although the case where the brim plate 5 is provided at the end of the above is shown, a brim plate may be similarly provided at the front end of the movable cover of the vertical surface measuring member 2. However, it is possible to omit the brim plate by securing the thickness of the tip of each cover so that the refractory coating can be abutted without being crushed.

[0022]

As described above, according to the refractory coating thickness measuring device of the present invention, only one type of measuring device can be used.
Regardless of whether it is a horizontal surface or a vertical surface, it is easy to measure the thickness of the refractory coating as well as its actual size immediately, so it is necessary to attach a guide bar to a steel frame etc. in advance as before However, there is an effect that it is possible to reduce the cost and time required for installing a guide bar, shorten the construction period, and eliminate the danger of working at a high place.

[Brief description of the drawings]

FIG. 1 is an overall plan view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is an operation explanatory view of the one shown in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Horizontal surface measurement member 2 Vertical surface measurement member 3 Fixed cover 4 Needle bar 5 Collar plate 6 Horizontal surface measurement needle 7 Scale 8 Handle 11 Movable cover 12 Needle bar 13 Slit 14 Needle bar fixing member 16 Vertical surface measurement needle 17 Scale 19 Tension spring

Claims (4)

[Claims] A needle bar having a needle for measuring a horizontal surface at one end thereof, being inserted through a cylindrical fixed cover, and having an axial scale at the other end protruding outward from a rear end of the fixed cover. A horizontal plane measuring member having a vertical plane measuring needle at one end, which is inserted through a cylindrical movable cover, and which is axially attached to the other end protruding outward from a rear end of the movable cover. A vertical bar measuring member having a needle bar having a scale, and a needle bar fixing member penetrating an axial slit provided in the movable cover, the needle bar being fixed to the needle bar. A thickness measuring tool for a fire-resistant coating, wherein a needle bar of the vertical surface measuring member is fixed to the cover in an intersecting state via the needle bar fixing member. 2. A tension spring having a needle bar fixed at one end to the needle bar fixing member and a second end fixed to the movable cover is provided inside the movable cover of the vertical surface measuring member. The tool for measuring the thickness of a refractory coating according to claim 1, wherein: 3. The refractory coating thickness measuring instrument according to claim 1, wherein a handle is provided at a rear end of the needle bar of the horizontal plane measuring member. 4. A front end of at least one of the fixed cover of the horizontal surface measuring member and the movable cover of the vertical surface measuring member is provided with a flange which comes into contact with the surface of the fireproof coating. A thickness measuring tool for a fire-resistant coating according to any one of claims 1 to 3.