JPH09101135A - Height measuring device for laminated rubber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a height measuring device for laminated rubber in which no spindle adjustment is required causing measuring work to be easy, and reading error and entry error by visual observation are eliminated. SOLUTION: A measurement moving piece 12 is fitted in a case 10 so that the tip portion 12b thereof is free in extending from and retracting to one end side of the case 10 by a spring 10, the position of the measurement moving piece 12 is converted into an electric signal so as to be output by a detection head 17. Receiving the same, the measurement value of a length between the tip portion 12b of the measurement moving piece 12 and the other end 24 of the case 10 is printed out in a digital form. A rod can be added to the measurement base end portion of the other end of the case 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a height measuring device for laminated rubber used as a seismic isolation device.

[0002]

2. Description of the Related Art In seismic isolation structures, laminated rubber is often used for seismic isolation devices. In order to maintain this seismic isolation structure in good condition for a long period of time, it is necessary to regularly inspect the seismic isolation device and its surroundings.

Particularly in laminated rubber, since the creep amount is a basis for judging the durability of the rubber, it is very important to measure its height. At present, in seismically isolated buildings, the building center is obliged to perform regular maintenance and temporary maintenance when an earthquake of a certain level or more occurs, and it is necessary to measure the amount of deformation of laminated rubber.

Conventionally, as shown in FIG. 8, an inside micrometer 31 with a dial gauge, a height gauge 32 equipped with an adapter according to the height of the laminated rubber, or a digital tape measure has been used to measure the amount of deformation of the laminated rubber. Using a measuring device such as 33, the height of the laminated rubber,
That is, it is performed by measuring the distance between the upper and lower flange plates of the laminated rubber. For example, in the case of measuring with a commercially available sprinkle pipe type multi-micrometer, this is inserted and set between the upper and lower flange plates 3 and 4 of the laminated rubber 1 to adjust the spindle, and then visually read to determine the lamination. The distance between the upper and lower flange plates 3 and 4 of the rubber 1 is measured, and this measurement operation is carried out at four measurement positions in the north, south, east, and west marked beforehand.

[0005]

However, in the conventional method for measuring the height of the laminated rubber, it is necessary to adjust the spindle after inserting and setting the measuring instrument, and the measuring operation takes a long time. Further, since the measured values are read visually, there are problems in terms of measurement accuracy and measurement data recording work, such as variations in read values and recording errors.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a height measuring device for a laminated rubber which does not require spindle adjustment and facilitates a measuring operation, and a height of the laminated rubber which does not cause a reading error or a bookkeeping error. It is to provide a measuring device.

[0007]

In order to achieve the above object, in a height measuring apparatus for laminated rubber according to the present invention, a base portion is slidably accommodated in a case, and a tip portion is extendable from one end side of the case. Of the measurement movable piece, an elastic body installed in the case for constantly urging the measurement movable piece in the protruding direction, and the position of the tip of the measurement movable piece is converted into an electric signal and output. It comprises a length measuring unit portion having a detection head, and an adjustable rod portion having a measuring base portion, which is provided at the other end of the case and can be extended in length by adding rods ( Claim 1).

In the height measuring instrument according to the first aspect of the present invention, the measurement piece is inserted between the upper and lower flange plates of the laminated rubber while the case is held and the measurement piece is retracted, and the measurement piece is released at a predetermined measurement position. By doing so, it is possible to easily insert and set between the upper and lower flange plates. That is, due to the action of an elastic body such as a spring, the measurement movable piece extends upward in the measurement section and is pressed against the upper and lower flange plates of the laminated rubber 1 with a constant force. Therefore, unlike the conventional multi-micrometer, it is not necessary to adjust the spindle with both hands, and the workability of measurement is good.

Further, according to the first aspect of the invention, since the elastic member is used, the measuring movable piece is always pressed against the upper and lower flange plates of the laminated rubber with a constant force. For this reason, there are few individual differences among measuring persons and variations in re-measurement. Therefore, the measurement accuracy can be improved and the measurement time can be shortened.

Further, according to the first aspect of the invention, since the adjustable rod portion is provided, it is possible to measure laminated rubber of various heights.

On the other hand, in the height measuring device for laminated rubber of the present invention, an output device including a microprocessor and a printer is connected to the length measuring unit section of the height measuring device to obtain an electric power obtained from the detecting head. It is preferable to receive the signal and output the measured value of the length between the distal end portion of the measurement movable piece and the measurement proximal end portion (claim 2).

According to the second aspect of the present invention, since the measured value is output from the output device by using an electric signal, data recording such as visual misreading, erroneous recording, and erroneous listening as in the past is recorded. Work problems can be eliminated. In this respect, it is possible to further improve the measurement accuracy and shorten the measurement time.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to illustrated embodiments.

In FIG. 1, a laminated rubber 1 is composed of a laminated rubber body 2 and upper and lower flange plates 3 and 4. Reference numeral 5 denotes a height measuring device for measuring the height of the laminated rubber 1, that is, the distance between the upper and lower flange plates 3 and 4, and a height measuring device 6 inserted and set between the upper and lower flange plates 3 and 4. It is composed of a recording device 7 for recording and displaying the measurement values obtained by the height measuring device 6. In this embodiment, the height measuring device 6
Displays the measured value on the liquid crystal display unit 22 provided therein, and outputs the measured value in the form of an electrical analog measurement signal, and the recording device 7 outputs the height measuring device 6. An analog measurement signal is received, this is processed by an internal microprocessor, an accurate measurement value is output as a digital value by a built-in printer 8, and is recorded in a storage device 9 such as a memory as necessary.

2 to 4 show the configuration of the height measuring device 6.
The height measuring device 6 is composed of a length measuring unit A having a spring having a large movable range and an adjustable rod B (see FIG. 5).

The length measuring unit A of the height measuring device 6 will be described. Reference numeral 10 is a cylindrical grip case that functions as a grip when inserting and setting between the upper and lower flange plates 3 and 4. A large groove 11 having a C-shaped cross section is provided on one side surface of the grip case 10, and a measurement movable piece 12 is provided in the groove 11 of the case with a protruding length in the axial direction. It is a retractable storage device. To be precise, the movable measuring piece 12 has a base portion 12a slidably accommodated in the groove 11 in the axial direction and a measuring tip portion 12b constantly protruding from the groove 11, and an intermediate portion between them. Is formed as a magnetizing scale 13 formed by magnetizing the strip-shaped plate at least over the length at which it can be pulled out.
Then, as elastic bodies that give the measuring movable piece 12 a tendency to always project, springs 14 having a large movable range are arranged in the groove 11 of the case on both sides of the strip plate of the magnetizing scale 13. , One end is case 1
To the pin 15 fixed to 0, and the other end to the base 1 of the movable measuring piece.
It is locked to the locking portion 16 of 2a. This spring 1
A force that constantly reduces the force acts on the measurement movable piece 4, so that the movable measurement piece 12 can naturally protrude by the movable distance L1 (FIG. 3) in the direction indicated by the arrow in FIG.
A short rod 23, which is fixed as a movable side contactor, is fixed to the tip of the movable measurement piece 12, and the above-described measurement tip portion 12b is configured as a whole including this.

Further, in the groove 11 of the case, a detection head 17 including a detection coil 18 through which the magnetized scale 13 penetrates is fixed by a screw 19, and the measurement output from the detection head 17 is output. The connector 20 and the cable 21 can be taken out from the terminal. In addition, 2
Reference numeral 2 denotes a liquid crystal display unit provided on the detection head 17 for schematically showing the current drawing distance position of the magnetizing scale 13.

Reference numeral 24 is a measurement base end portion provided at the rear end of the grip portion case 10, and comprises a base rod 24a having a short length as a fixed side contactor. In this measurement base end portion 24, the foundation rod 24a is screwed and fixed to one side of the L-shaped mounting metal fitting 25, and the other side of the auxiliary metal fitting 25 is lowered to the space portion 26 (FIG. 3) in the grip case 10. It is attached to the end of the case 10 on the base side by inserting it from the end face and fixing it with screws 27.

The measurement base end portion 24 is a basic element constituting the above-mentioned adjustable rod portion B, and the core portion 24b is coaxial with the end surface of the base rod 24a.
And a screw for replenishing is provided on the outer periphery of the core portion. When the height of the laminated rubber 1 to be measured exceeds the maximum measurable distance L2 (FIG. 5) of the height measuring device 6, the base rod 2 of this measurement base end portion 24 is measured.
4a, as shown by the broken line in FIG. 5, depending on the height of the laminated rubber 1 to be measured, by adding the required number of additional rods 28, the length of the measurement base end portion 24 is extended, As a result, the maximum measurable distance can be increased from L2 to L3. However, since the stroke of the measurement movable piece 12 remains the movable distance L1, the adjustable range is not expanded.

This replenishing rod 28 has a screw hole into which the core portion 24b is screwed, and a lower end surface thereof is provided with a core portion 28a formed in the same manner as the core portion 24b. The connecting portion between the basic rod and the extension rod 28 of the measurement base end portion 24 and the connection portion between the extension rods 28 are firmly tightened by the exterior ring 29.

When using the height measuring device 6 having the above-mentioned structure, the gauge point indicating plate 40 made of a smooth material such as glass which is hard to change with time is provided at the measuring point positions of the upper and lower flange plates 3 and 4 of the laminated rubber 1. Should be permanently installed. As shown in FIG. 1 and FIG. 6, this gauge-point indicating plate 40 enables the measurement work to be performed while confirming a predetermined fixed measurement point position at any time, and in order to ensure the measurement accuracy. The marking point indicating plate 40 displaying the marking 40a as a cross mark is attached to the lower surface of the upper flange plate 3 and the upper surface of the lower flange plate 4 of the laminated rubber 1 while ensuring verticality. Set up. When the height measuring instrument 6 is mounted, the height measuring device 6 is fitted to the gage marks 40a of the gage mark indicating plate 40 and installed between them. Generally, the flange plates 3 and 4 are made of steel and are easily rusted.
Further, such dust and the like adhering to the flange plates 3 and 4 are difficult to remove, and when the height measuring device 6 regularly measures the height of the same place, it is generated on the flange plates 3 and 4. If the flange surface is scraped off in an attempt to remove the accumulated rust, or if difficult-to-remove dust or the like remains on the flange surface, the measurement result itself becomes meaningless. Therefore, the measurement point is kept clean by using the gauge point indicator plate 40 made of a material such as smooth glass which is hard to change with time, and the gauge point position 40a of the gauge point indicator plate 40 is used to determine the measurement point position. By ensuring a constant value, periodic measurement results can be made meaningful data. It is needless to say that the thickness of the gage mark indicating plate 40 is corrected for the measurement result.

As shown in FIGS. 2 and 3, the height measuring device 6 having the above structure is inserted between the upper and lower flange plates 3 and 4 while holding the grip case 10 and retracting the movable measurement piece 12.
The measurement movable piece 12 is released at a predetermined measurement position. Since the spring 14 having a large movable range is used in the length measuring unit section A, the measuring movable piece 12 extends in the direction of the arrow in FIG.
And the rod 24a of the measurement base end portion 24, which is in contact with the fixed side, press-contact between the upper and lower flange plates 3 and 4 of the laminated rubber 1 with an appropriate constant force. As a result, the height measuring device 6 is inserted and set between the upper and lower flange plates 3 and 4. Therefore, in the case of this height measuring device 6, it is not necessary to perform spindle adjustment with both hands unlike the conventional multi-micrometer, and it is possible to set with one hand. In addition, there are few individual differences among measurers and variations in remeasurement, and workability of measurement is good. Height measuring device 6
Since the adjustable rod portion B is provided in the above, it is possible to measure laminated rubber of various heights. In addition, it is an assembly type and is excellent in portability.

When the measurement movable piece 12 is stretched and pressed against the upper and lower flange plates 3 and 4 of the laminated rubber 1 with a constant force,
The magnetizing scale 13 is attached to the detection coil 18 by the protrusion amount.
Move in. Therefore, the detection coil 1 of the detection head 17
From 8, an analog position signal corresponding to the magnetization data of the magnetization scale 13 is obtained.

The recording device 7 connected to the height measuring device 6 by the cable 21 receives the analog measurement signal output from the height measuring device 6 and processes the analog measurement signal by an internal microprocessor for accurate measurement. The measured values are output as digital values by the built-in printer 8 and recorded in the storage device 9 as required. Since the measured values are output as digital values to the printer in this way, there is no problem of data recordability such as misreading by visual observation, erroneous recording, and erroneous listening as in the past.

From the above points, the height of the laminated rubber 1 can be measured easily, quickly and accurately.

At the measurement site, the height measuring instrument 6 itself may already include an error due to the assembly of the additional rod 28, an error due to a difference in ambient environment temperature, and the like. Therefore, in practice, it is desirable to calibrate the height of the height measuring device 6.

Here, a height gauge is used as a calibrator, and the height of the laminated rubber height measuring device 6 is calibrated (calibrated) directly at the measurement site.

That is, as shown in FIG. 7, the height of the height measuring device 6 is first measured by a height gauge at the time when the rods 28 are connected to each other according to the laminated rubber 1 to be measured, that is, before the measurement. Perform calibration (pre-calibration). Then
As described above, the height is measured by printing out numerical values using the recording device 7. After this measurement, the height of the height measuring device 6 is calibrated by the height gauge (post-calibration). Then, when the measurement data obtained by the height measuring device 6 is processed in the recording device 7, the measurement data is corrected using the calibration values obtained by the above-mentioned pre-calibration and post-calibration to eliminate the error. , Secure high precision measurement data.
Finally, add a visual inspection (temperature, photo) of each part to create a report.

Note that the calibration with the height gauge can be used when the height measuring instrument 6 is assembled, or before and after and during the measurement, as required.

The effects of the above embodiments are listed below.

(1) Since the length measuring unit A using a spring having a large movable range is used as the height measuring device for the laminated rubber, the movable piece 1 can be measured with a constant force when the measuring device is inserted and set.
2 extends the measurement section, so spindle adjustment is not required, and there is little individual difference among measurers and re-measurement variations, and measurement workability is good.

(2) Since the adjustable rod portion B is used in the laminated rubber height measuring device, it is possible to measure laminated rubber of various heights. In addition, it is an assembly type and is excellent in portability.

(3) Since the measured value is output as a digital value to the printer, there is no problem of data recordability such as visual misreading, recording error, and listening error.

(4) Since the laminated rubber height measuring instrument is calibrated at the measurement site using the height calibrating instrument, accuracy can be secured.

(5) With the above, the height of the laminated rubber can be measured easily, quickly and accurately, and the measurement accuracy can be improved and the measurement time can be shortened.

[0036]

As described above, according to the present invention, the following excellent effects can be obtained.

(1) In the invention of claim 1, the length measuring unit portion of the height measuring device has the base portion slidably accommodated in the case, and the tip portion telescopically protruded from one end side of the case. The measurement movable piece, the elastic body installed in the case so as to constantly bias the measurement movable piece in the protruding direction, and the detection head for converting the position of the tip of the measurement movable piece into an electric signal and outputting the electric signal. Since the structure is equipped, the measurement movable piece is inserted between the upper and lower flange plates of the laminated rubber with the measurement movable piece retracted, and the measurement movable piece is released at the predetermined measurement position, so that the elastic body works to naturally maintain a constant force. Since the upper and lower flange plates of the laminated rubber are pressed against each other, they can be easily inserted and set between the upper and lower flange plates. Therefore, unlike the conventional multi-micrometer, it is not necessary to adjust the spindle with both hands,
Good workability of measurement. Also, because an elastic body is used,
Since the measurement movable piece is always pressed against the upper and lower flange plates of the laminated rubber with a constant force, there is little individual difference among measurement personnel and variations in re-measurement, and measurement accuracy can be improved and measurement time can be shortened. Further, since it has a measurement base end portion which is provided at the other end of the case and whose length can be extended by adding a rod, it is possible to cope with the measurement of laminated rubber of various heights.

(2) According to the second aspect of the invention, since an output device having a built-in microprocessor and printer is connected to the length measuring unit section of the height measuring instrument to output the measured value, It is possible to eliminate problems in the workability of data recording such as the conventional misreading by mistake, recording error, and listening error. In this sense, it is possible to further improve the measurement accuracy and shorten the measurement time.

[Brief description of the drawings]

FIG. 1 is a view showing a height measuring device for laminated rubber of the present invention in a use state.

FIG. 2 is a front view showing a height measuring device, which is a component of the height measuring device of FIG. 1, in a partial cross section.

FIG. 3 is a side view showing a height measuring device which is a constituent element of the height measuring device of FIG. 1 in a partial cross section.

FIG. 4 is an end view of the height gauge for the laminated rubber of FIG.

5 is a view similar to FIG. 2 showing a relationship between a length measuring unit portion and an adjustable rod portion of the height measuring instrument of FIG. 1.

6 is a perspective view showing a gage mark indicating plate used in the height measuring device of FIG. 1. FIG.

FIG. 7 is a conceptual diagram showing an example of connection of a replenishing rod of a height measuring instrument, calibration of a recording device, and data processing in the present invention.

FIG. 8 is a view showing a conventional height gauge for laminated rubber and an example of use thereof.

[Explanation of symbols]

1 Laminated rubber 2 Laminated rubber main body 3,4 Flange plate 5 Height measuring device 6 Height measuring device 7 Recording device 8 Printer 9 Storage device 10 Grip case 11 Groove 12 Measuring movable piece 12a Base 12b Measuring tip 13 Magnetizing scale 14 Spring 15 Pin 16 Locking Part 17 Detecting Head 18 Detecting Coil 19 Screw 20 Connector 21 Cable 22 Liquid Crystal Display 23 Rod (Movable Contact) 24 Measuring Base End 24a Base Rod (Fixed Contact) 24b Core 25 Mounting bracket 26 Space section 27 Screw 28 Replenishing rod 28a Core section 29 Exterior ring 31 Inside micrometer 32 Height gauge with adapter 33 Digital tape measure A Measuring unit section B Adjustable rod section L1 Moving distance L2 Maximum measurable distance

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tokuo Hino 1-5-5 Honmachi, Kawasaki-ku, Kawasaki-shi, Kanagawa Japan Inspection Consultant Co., Ltd.

Claims (2)

[Claims] 1. A base is slidably housed in a case,
A measurement movable piece whose tip portion is elastically projected from one end side of the case, an elastic body installed in the case so as to constantly urge the measurement movable piece in the projecting direction, and a tip of this measurement movable piece. Adjustable unit having a measuring unit unit including a detection head for converting the position into an electric signal and outputting the electric signal, and a measuring base end unit for extending the length by adding a rod provided at the other end of the case. A height measuring device for laminated rubber, comprising a rod portion. 2. An output device having a microprocessor and a printer built in a length measuring unit part of the height measuring device, which receives an electric signal obtained from the detection head and receives a tip end part of the measuring movable piece and The height measuring device of the laminated rubber according to claim 1, further comprising an output device connected to output a measurement value of the length between the measurement base end portions.