JPH07159104A - Finished material thickness measuring instrument - Google Patents

Abstract

PURPOSE:To provide a finished material thickness measuring instrument with which non-destructive measurement of finished material thickness can be implemented and investigation as well as diagnosis on a deterioration phenomenon can be carried out while maintaining a worked surface in a normal state. CONSTITUTION:In a guide 5, a moving needle 6 is arranged to be slidable by grasping force of a moving lever 6c against energizing force of a spring 7 arranged between a step difference part 5a and a support 6a. The guide 5 is arranged in a hole 2 of a main body part 1, to be slidable by rotation of a fine adjustment dial 8, of which a screw part is screw-engaged with a screw part 5c threaded in a peripheral wall of the guide 5. A level plate 12 is brought into tight contact with a finished material, an abutting part 1a projectingly provided at a tip of the main body part 1 is engaged with a step difference part 12a of the level plate 12 for positioning the main body part 1, and the guide 5 is brought into contact with the finished material via a through-hole 12b of the plate 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a finish material thickness measuring instrument for nondestructively inspecting the thickness of coating materials for outer walls of buildings and waterproof materials for rooftops.

[0002]

2. Description of the Related Art Finishing materials for building exterior walls and roof waterproofing materials are
Due to deterioration over time, weathering, wear, etc., the thickness of the finish material may decrease or rise, and desired performance may not be exhibited. Therefore, it is necessary to regularly investigate and diagnose the deterioration phenomenon of the finishing material to prevent the deterioration of its performance.

Conventionally, in order to investigate or diagnose such a deterioration phenomenon, a specialist engineer visually inspects the external appearance of a desired portion, and if necessary, a part of the finishing material is sampled and the thickness thereof is checked with a caliper or the like. It was performed by measuring and determining whether or not it has a specified thickness.

[0004]

Since the conventional investigation or diagnosis of the deterioration phenomenon of the finishing material has been carried out as described above, a part of the finishing material is to be collected if necessary.
There was a problem that the finished material was destroyed and the construction surface after the inspection and diagnosis could not be maintained in a normal state.

The present invention has been made in order to solve the above-mentioned problems, and enables nondestructive measurement of the thickness of the finishing material, keeping the construction surface in a normal state and investigating the deterioration phenomenon. The purpose is to obtain a finishing material thickness measuring instrument that can make a diagnosis.

[0006]

A finishing material thickness measuring instrument according to the present invention is provided with a hole whose one end side is opened in the shaft center.
Further, the opening side of the hole is protruded, and the main body part is provided with the abutting portion, and is coaxially slidably arranged in the hole, and one end side is made an opening, and the opening side inner wall surface is formed. A bottomed hollow cylindrical guide having a protrusion, a guide moving means for axially reciprocating the guide, and a coaxial slidable arrangement inside the guide, with a sharp tip shape on one end side. A moving needle provided with an intruding needle, a spring for engaging the protruding portion formed on the inner wall surface of the opening side of the guide and urging the moving needle toward the other end along the axial direction, A moving lever attached to the end side, which applies a moving force to the moving needle against the biasing force of the spring, a displacement detecting means for detecting the displacement of the moving needle along the axial direction, and a moving needle from the output of the displacement detecting means. Of the guide, the step portion engaging the tip of the contact portion, and the guide. A through hole for passing the side is provided coaxially, in which a level plate to be in close contact with the finished surface of the finish.

[0007]

In the present invention, the level plate is brought into close contact with a desired portion of the finished surface of the finishing material. Then, the tip portion of the contact portion of the main body portion is engaged with the step portion of the level plate. Then, when the guide is moved by the guide moving means, the guide comes into contact with the finished surface through the through hole of the level plate.
After that, when a moving force is applied to the moving needle with the moving lever,
The moving needle is guided by the guide and descends against the biasing force of the spring. Then, it penetrates into the finishing material and stops until the tip of the penetration needle comes into contact with the body. At this time, the displacement amount of the moving needle is detected by the displacement detection means, and is displayed as the thickness of the finishing material by the display means.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. Example 1. 1 is a perspective view showing a finishing material thickness measuring instrument according to a first embodiment of the present invention, and FIG. 2 is a partial sectional view showing an essential part of the finishing material thickness measuring instrument according to the first embodiment of the present invention. Reference numeral 1 is a main body of a finish material thickness measuring instrument having an abutting portion 1a protruding from one end and a shoulder rest 1b provided on the other end. The main body 1 has a dividing line 1c passing through its axis. Each of the vertically divided parts is fastened and integrated with a screw (not shown). Reference numeral 2 denotes a hole provided along the axial center of the main body 1 so that one end side is opened along the axial direction. Reference numeral 3 denotes a peripheral wall of the main body 1 with long sides extending in the axial direction and short sides circumferentially. In the direction
Rectangular windows 4 formed to reach the hole 2 are fixed levers provided upright on the peripheral wall of the main body 1. Reference numeral 5 has an outer diameter substantially equal to the inner diameter of the hole 2, a step portion 5a is provided as a protruding portion so that the inner diameter on one end side is small, and a rectangular window 5b is formed on the peripheral wall thereof. Although not shown, this guide 5 is a hollow cylindrical guide, and each of the vertically divided parts is divided into two parts by a dividing line 1c passing through the axis of the guide 5. Is coaxially mounted in the hole 2 of the main body 1 so as to be slidable along the axial direction, facing the window 3. Here, although not shown, a groove is provided on the inner wall surface of the hole 2 of the main body portion 1 along the axial direction, and a projection is provided on the outer wall surface of the guide 5, so that the guide 5 is formed into the hole. The protrusion 5 is engaged with the groove when it is mounted inside the guide 2, so that the guide 5 is prevented from rotating.

Reference numeral 6 denotes a columnar pillar 6a having an outer diameter substantially equal to the inner diameter of the guide 5, and an outer diameter substantially equal to the inner diameter of the step portion 5a provided at one end of the pillar 6a and having a sharp tip. A moving needle 6b and a moving lever 6c provided upright on the other end side of the support column 6a. The moving needle 6 is slidable in the guide 5 and is movable.
Are attached so as to project from the window 3 and the window 5b to the outer peripheral side of the main body 1. Reference numeral 7 denotes a spring which is arranged between the step portion 5a and the support 6a when the moving needle 6 is mounted in the guide 5, and biases the moving needle 6 toward the moving lever 6c. To move the needle 6
Is brought into contact with the bottom surface of the guide 5 so that the surface positions of the tip of the penetrating needle 6b and the tip of the guide 5 on the opening side are aligned. Reference numeral 8 denotes a fine adjustment dial in which a threaded portion is threaded on the inner wall surface of the center hole. This finely adjusted dial 8 has its threaded portion screwed into the threaded portion 5c threaded on the peripheral wall of the guide 5 to move the guide. A means is configured to convert the rotational movement of the fine adjustment dial 8 into a linear movement along the axial direction so that the guide 5 can be moved up and down.

A permanent magnet 9 is attached to the support 6a of the moving needle 6 so that the N poles and the S poles are alternately and continuously arranged along the axial direction. The reference numeral 10 is attached to the inner wall of the guide 5 facing the permanent magnet 9. The magnetometer outputs the change in the magnetic field of the permanent magnet 9 as the displacement of the moving needle 6, and the permanent magnet 9 and the magnetometer 10 constitute displacement detecting means. 1
Reference numeral 1 is a display device as a display means for displaying the displacement of the moving needle 6 from the output of the magnetometer 10.
For example, a liquid crystal display device can be used. Reference numeral 12 is a flat plate shape in which a step portion 12a into which the contact portion 1a of the main body portion 1 is inserted and a through hole 12b having an inner diameter substantially equal to the outer diameter of the guide 5 are coaxially provided in the center of the step portion 12a. It is a level board.

In order to assemble the finishing material thickness measuring instrument having such a structure, first, the spring 7 is attached to the penetrating needle 6b of the moving needle 6. The moving lever 6c of the moving needle 6 is projected from the window 5b, and the guides 5 vertically divided into two parts are put together to accommodate the moving needle 6, and the guide 5 is integrated by tightening with a screw. Then, the fine adjustment dial 8 is screwed onto the threaded portion 5c of the guide 5. After that, the moving lever 6c of the moving needle 6 is projected from the window 3, and the main body 1 which is vertically divided into two parts is aligned from both sides to form the guide 5 in the hole 2.
The measuring device is assembled by accommodating it inside and tightening it with screws to integrate the main body 1. In the finished material thickness measuring instrument thus assembled, the moving needle 6 is pushed up by the urging force of the spring 7 until it comes into contact with the bottom surface of the guide 5 in the initial state, and the tip of the guide 5 and the tip of the penetrating needle 6b are pushed. The surface positions are matched. Then, by moving the moving lever 6c to the fixed lever 4 side,
The moving needle 6 is moved by being guided by the guide 5 against the biasing force of the spring 7. Further, by rotating the fine adjustment dial 8, the guide 5 and the moving needle 6 are integrally moved up and down.

Next, the operation of the first embodiment will be described with reference to FIG. A finishing material 21 such as a coating material or a prevention material is applied on the frame 20. Therefore, the finishing material 21
The level plate 12 is brought into close contact with the finished surface 22 such that the through hole 12b is located at the measurement site. And shoulder rest 1
The shoulder is applied to b, and the contact portion 1a of the main body portion 1 is brought into contact with the step portion 12a of the level plate 12 as shown in FIG. Then, rotate the fine adjustment dial 8 to rotate the guide 5.
Is lowered in the through hole 12b, and the tip end surface of the guide 5 is brought into contact with the finished surface 22 as shown in FIG. 3 (b).
At this time, the tip of the penetrating needle 6b is in contact with the finished surface 22. Therefore, the display 11 is reset and the fixed lever 4
And the moving lever 6c. Then, due to the gripping force, the moving needle 6 is guided by the guide 5 against the biasing force of the spring 7 and descends, and the penetration needle 6b penetrates into the finishing material 21, and as shown in FIG. Its tip comes into contact with the hard body 20 and stops. At this time, the permanent magnet 9 moves in synchronization with the moving needle 6, and the amount of displacement of the moving needle 6 is detected by the magnetometer 10 from the change in the magnetic field accompanying the movement of the permanent magnet 9. Then, based on the output signal of the magnetometer 10, the displacement amount of the moving needle 6, that is, the thickness of the finishing material 21 is displayed on the display 11.

As described above, according to the first embodiment, the thickness can be measured without collecting a part of the finishing material 21, and the deterioration phenomenon of the finishing material 21 can be maintained by maintaining the working surface in a normal state. There is an effect that can be investigated and diagnosed.

The level plate 12 has a step portion 12a into which the abutting portion 1a of the body portion 1 is inserted, and the through hole 1 having an inner diameter substantially equal to the outer diameter of the guide 5 at the center of the step portion 12a.
2b and 2b are provided coaxially with each other, so that the level plate 12 is finished surface 2 of the finishing material 21 to be measured.
It suffices to place the contact portion 1a of the main body 1 on the step 2 and insert the contact portion 1a of the main body 1 into the stepped portion 12a to perform measurement, and it is possible to prevent damage to the surface state of the finished surface 22 and accurately measure the main body 1 with respect to the measurement position. The positioning can be performed, and further, the main body 1 can be stably set at right angles to the finished surface 22 of the finishing material 21, and the measurement accuracy can be improved.

Further, a spring 6 is arranged between the step 5a provided on one end side of the guide 5 and the support 6a, and the moving needle 6 is brought into contact with the bottom surface of the guide 5 by the urging force of the spring 6. Since the surface positions of the tip of the penetrating needle 6b and the tip of the guide 5 on the opening side are matched, the position of the moving needle 6 relative to the guide 5 in the initial state (the state in which the moving lever 6c is not gripped) is automatically adjusted. When the fine adjustment dial 8 is rotated and the tip surface of the guide 5 is brought into contact with the finished surface 22, the tip of the penetrating needle 6b of the moving needle 6 is also finished.
The measurement start position of the moving needle 6 with respect to the finishing material 21 can be uniquely set.

Further, since the guide 5 is vertically divided into two parts, the moving needle 6 can be sandwiched from both sides so as to be integrated by tightening a screw, and the main body part 1 is vertically divided into two parts. The guide 5 to which the needle 6 is attached can be sandwiched from both sides to be integrated by tightening screws, and the measuring instrument can be easily assembled.

Example 2. In the first embodiment, the moving lever 6c is integrally attached to the other end side of the support column 6a, but in the second embodiment, as shown in FIG. 4, the moving lever 6c is attached to the other end side of the support column 6a. Hole 6d is provided for moving lever 1
3 is provided with a shaft 13a, and the shaft 1 of the moving lever 13 is provided in the hole 6d.
3a is inserted, and a spring 14 is arranged between the column 6a and the moving lever 13 to move the moving needle 6 and the moving lever 1.
It is assumed that 3 and 3 are configured separately. The other configurations are the same as those in the first embodiment.

In the second embodiment, by gripping the moving lever 13 and the fixed lever 4, the moving lever 13 descends,
This gripping force is transmitted to the moving needle 6 via the spring 14. Then, the moving needle 6 is guided by the guide 5 against the urging force of the spring 7, and descends until the tip of the penetrating needle 6b comes into contact with the skeleton 20. Therefore, a large drag acts on the moving needle 6 from the rigid body 20, and the lowering of the moving needle 6 is stopped. Further, when the moving lever 13 is lowered, the lowering of the moving needle 6 is stopped by the reaction force from the hard body 20, and the excessive gripping force from the moving lever 13 is absorbed by the contraction of the spring 14.

As described above, according to the second embodiment, since the moving lever 13 and the moving needle 6 are formed separately and the spring 14 is interposed between them, in addition to the effect of the first embodiment. , Even if excessive gripping force is applied, the spring 14
Is absorbed by the contraction of the
Further, due to the contraction of the spring 14, the entry needle 6b of the moving needle 6
It can be easily sensed that the tip of the body has contacted the body 20, and the body 20 can be prevented from being damaged.

Example 3. In the third embodiment, as shown in FIG. 5 in the third embodiment, a switch 15 is provided on the moving lever 13 and the main body 1 and a buzzer, a lamp or the like for notifying the closed state of the switch 15 is notified. Means 16 are provided.

According to the third embodiment, when the moving lever 13 is further lowered after the tip of the penetrating needle 6b contacts the body 20, the switch 15 is closed and the notifying means 16 operates. Then, for example, a buzzer sounds or a lamp is turned on to notify the operator that the tip of the penetration needle 6b has reached the body. Therefore, it is possible to reliably judge the completion of the measurement of the thickness of the finishing material 21.

In each of the above embodiments, a permanent magnet 9 having N poles and S poles alternately arranged along the axial direction on the column 6a of the moving needle 6 and a magnetometer 10 provided on the guide 5 are used. Although it is assumed that the configured displacement detecting means is used,
The displacement detecting means is not limited to this, and any means capable of detecting the displacement of the moving needle 6 along the axial direction may be used. For example, a core is arranged on the column 6a of the moving needle 6 and wound around the guide 5. The primary coil and the two secondary coils are differentially connected, and when the AC voltage is applied to the primary coil, the positional relationship of the core (moving needle 6) is determined from the output voltage induced in the secondary coil. A differential transformer for detection may be used.

[0023]

As described above, according to the present invention, a main body portion is provided with a hole having an opening at one end side in the shaft center, and an abutting portion provided with the opening side of the hole protruding. , Is coaxially slidably disposed in the hole, has one end as an opening, and
A hollow cylindrical guide with a bottom having a projection formed on the inner wall of the opening side, a guide moving means for reciprocating the guide in the axial direction, and a slidable coaxially arranged inside the guide. A spring that urges the moving needle along the axial direction toward the other end by engaging a moving needle provided with an entry needle having a sharp tip shape on the inside and a protrusion formed on the inner wall surface of the opening side of the guide. A moving lever attached to the other end of the moving needle to apply a moving force to the moving needle against the biasing force of the spring, and a displacement detecting means for detecting the displacement of the moving needle along the axial direction,
The display means for displaying the displacement of the moving needle from the output of the displacement detection means, the stepped portion engaging with the tip of the abutting portion, and the through hole for passing the one end side of the guide are coaxially provided. Since it has a level plate that is in close contact with the finished surface,
Easy and stable positioning on the measurement site of the finishing material, the thickness can be measured without collecting a part of the finishing material, the working surface is maintained in a normal state, and the deterioration phenomenon of the finishing material is easily investigated.
There is an effect that a finishing material thickness measuring instrument capable of making a diagnosis can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view showing a finishing material thickness measuring instrument according to Embodiment 1 of the present invention.

FIG. 2 is a partial cross-sectional view showing a main part of the finishing material thickness measuring instrument according to the first embodiment of the present invention.

3 (a) to 3 (c) are each a first embodiment of the present invention.
FIG. 6 is a process cross-sectional view showing the measuring method of the finishing material thickness measuring instrument according to the invention.

FIG. 4 is a sectional view showing a main part of a finishing material thickness measuring instrument according to a second embodiment of the present invention.

FIG. 5 is a sectional view showing a main part of a finishing material thickness measuring instrument according to a third embodiment of the present invention.

[Explanation of symbols]

 1 Main Body 1a Abutment 2 Hole 5 Guide 5a Step (projection) 5c Screw (guide moving means) 6 Moving needle 6b Entry needle 6c Moving lever 7 Spring 8 Fine adjustment dial (guide moving means) 9 Permanent magnet ( Displacement detecting means) 10 Magnetometer (displacement detecting means) 12 Level plate 12a Step portion 12b Through hole 13 Moving lever 21 Finishing material 22 Finished surface

Claims (1)

[Claims] 1. A main body part having a hole whose one end side is opened in the shaft center, and an abutting part provided by projecting the opening side of the hole, and coaxially sliding in the hole. A guide having a hollow cylindrical shape with a bottom, which is movably arranged and has an opening on one end side, and a protrusion is formed on the inner wall surface on the opening side; and guide moving means for reciprocating the guide in the axial direction, It engages with a moving needle, which is coaxially slidable in the guide and has an intruding needle having a sharp tip shape at one end side, and a protrusion formed on the inner wall surface of the guide on the opening side. A spring for urging the movable needle toward the other end along the axial direction,
A moving lever attached to the other end of the moving needle for applying a moving force to the moving needle against the biasing force of the spring; a displacement detecting means for detecting a displacement of the moving needle along the axial direction; Display means for displaying the displacement of the moving needle from the output of the displacement detection means, a step portion that engages with the tip of the contact portion, and a through hole that allows one end side of the guide to pass through are provided coaxially. A finishing material thickness measuring instrument, comprising: a level plate which is brought into close contact with the finishing surface of the finishing material.