JP2019039781A - Measuring instrument and measurement method - Google Patents

Abstract

To provide a measuring instrument with which it is possible to perform measurement with high accuracy even for a measurement object having irregularities on the surface.SOLUTION: A measurement instrument 1 comprises: a long medium 3 extending linearly; a measuring unit 4, held on the long medium 3, for measuring the distance from a reference position to a measurement object 2; a first leg part 5 held on the long medium 3, with the tip coming in contact with the measurement object 2, which maintains the distance between the long medium 3 and the measurement object 2; and a second leg part 6 held on the long medium 3 on the opposite side to the first leg part 5 across the measuring unit 4. The second leg part 6 includes a pair of contactors 62 arranged on both sides of the long medium 3 across it, protruding to the measurement object 2 side and, with the tip coming in contact with the measurement object 2, maintaining the distance between the long medium 3 and the measurement object 2, the pair of contactors 62 being slidable in the lengthwise direction of the long medium 3 independently of each other.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a measuring instrument that measures a deformation amount such as warpage of a measurement object having a surface such as an outer wall or a sash of a building, and a measuring method using the measuring instrument.

  Conventionally, various measuring instruments for measuring the warpage of building materials such as plate materials have been proposed. In a conventional measuring instrument, a dial gauge is fixed at the center of a long body, and legs are formed near both ends of the long body. In such a measuring instrument, the dial gauge value was adjusted to zero when the dial gauge probe was brought into contact with the flat surface with the tips of the legs at both ends pressed against the flat surface for adjustment. Then, the leg part of both ends is pressed against the building material of a measuring object, and the curvature of the said building material is measured by making the measuring element of a dial gauge contact a building material (refer patent document 1).

  In such a measuring instrument, by arranging multiple dial gauges side by side in the length direction of the long body, it is possible to measure the amount of displacement of building materials at multiple locations at once, thereby measuring the warpage of building materials with higher accuracy. Have also been proposed (see Patent Document 2 and Patent Document 3).

JP-A-7-239202 Japanese Patent Laid-Open No. 2002-22401 JP 2002-39703 A

  The conventional measuring instrument is based on the premise that the building material of the measurement object is a plate having a flat surface. However, for example, a building material such as an outer wall siding material may be employed in which a deep and complex uneven pattern is formed on the outdoor surface in order to improve the design of the exterior appearance of the building. When the surface of the measurement object has deep irregularities, it is difficult for the conventional measuring instrument to stably press the leg against the measurement object, and the posture of the measuring instrument is not stable. there were. In addition, the position of the measuring part of the leg part or dial gauge is not determined by the unevenness, and there is a problem that the measurement accuracy is lowered.

  Therefore, an object of the present invention is to provide a measuring instrument that can accurately measure even a measurement object having irregularities on its surface.

  A measuring instrument according to a first aspect of the present invention is a measuring instrument for measuring a deformation amount of an object to be measured, which is a linear body extending in a straight line, and is held by the long body, and the measuring object is measured from a reference position. A measuring unit that measures the distance to an object, and a first leg that is held by the elongate body and that maintains a distance between the elongate body and the object to be measured with a tip abutting against the object to be measured And a second leg portion held by the elongated body on the opposite side of the first leg portion across the measuring portion, the second leg portion sandwiching the elongated body therebetween A pair of contacts disposed on both sides, projecting toward the measurement object, and having a tip abutting against the measurement object to maintain a distance between the elongated body and the measurement object; The contacts are slidable in the longitudinal direction of the elongated body independently of each other.

  In addition to the above-described features, the measuring device of the second embodiment is characterized in that the pair of contacts are formed so that the protruding length toward the measuring object can be adjusted.

  Further, in the measuring device of the third form, in addition to the above-described feature, the first leg can slide in the length direction of the elongated body, and / or the measuring object is directed to the measuring object side. The protrusion length is formed to be adjustable.

  Furthermore, the measuring device of the fourth form is characterized in that, in addition to the above-described features, the measuring unit can slide in the length direction of the long body.

  Furthermore, in addition to the above-described features, the fifth aspect of the measuring instrument includes a plurality of the measurement units, and the measurement units are respectively held on both sides of the elongated body. .

  The measurement method of the present invention is a measurement method for measuring a deformation amount of the measurement object using the measuring instrument of the fifth aspect described above, wherein the measurement object includes the first leg and the second leg. After contacting the part, the measurement part held on both sides of the long body is caused to measure the distance from the reference position to the measurement object, and a plurality of values measured by the measurement part are obtained. Based on this, it is determined whether or not the deformation amount of the measurement object is within an allowable range.

  According to the measuring instrument of the first aspect of the present invention, the first leg is held on one side of the elongated body with the measurement unit interposed therebetween, and the second leg is held on the other side. Since the part has a pair of contacts on both sides of the elongated body, the three points of one first leg and two contacts are supported as a supporting point on the object to be measured. The distance between the scale and the measurement object is maintained. As described above, since the elongated body is held by the contact of three points, the posture of the measuring instrument can be stabilized, and the deformation amount of the measurement object can be measured with high accuracy.

  That is, when the support point is a contact of only two points, it swings around a straight line connecting the two points, and it is difficult to stabilize the posture of the measuring instrument. Also, if the support point is a contact of 4 or more points, press all the support points against the measurement object when the measurement object is warped or twisted, or when the surface of the measurement object is uneven. It becomes difficult to stabilize the posture of the measuring instrument. The measuring device according to the present invention is a case where the measuring object is warped or twisted or has surface irregularities by pressing the three points of one first leg and two contacts against the measuring object as a supporting point. However, the posture of the measuring instrument can be stabilized.

  Furthermore, according to the measuring instrument of the first embodiment, the pair of contacts can slide in the length direction of the long body independently of each other, so that the contacts can be removed even when there is unevenness on the surface of the measurement object. The posture of the measuring instrument can be stabilized by moving each to the flat part of the surface of the measuring object.

  According to the measuring device of the second form, the pair of contacts can adjust the protrusion length to the measurement object side, so the protrusion length of the contact element is adjusted to the unevenness of the surface of the measurement object. By doing so, the measuring instrument can be held in an appropriate posture.

  According to the measuring instrument of the third form, the first leg can be slid in the length direction of the long body or the protruding length can be adjusted to measure even when the surface of the measurement object has irregularities. The vessel can be held in an appropriate posture.

  According to the measuring instrument of the fourth form, the measuring part can slide in the length direction of the long body, so the position for measuring the deformation amount of the measuring object can be moved, and the surface of the measuring object can be moved. Even when there are irregularities, it is possible to select and measure a measurable position. In addition, since a plurality of locations can be measured by sliding the measuring unit, the amount of deformation of the measurement object can be accurately measured by measuring the amount of deformation at several locations.

  According to the measuring device of the fifth form, the measuring unit is held on both sides of the long body, so by measuring with the measuring unit on both sides, compare the measured values and compare the measured values of the measuring device. The inclination with respect to the measurement object can be recognized, and it can be determined whether the posture of the measuring instrument is properly maintained. Also, if it is determined whether or not the warpage of the measurement object is within an allowable range based on the measured values, when measuring only one location or measuring multiple locations only in the length direction of the measuring instrument Compared to the above, it is possible to increase the accuracy of measurement and to make a more appropriate judgment.

  Based on the multiple values measured by the measurement unit, it is determined whether the deformation amount of the measurement object is within the allowable range, so whether the deformation of the measurement object is within the allowable range in consideration of the inclination of the measurement device and the torsion of the measurement device itself. It is possible to determine whether or not to make a more appropriate determination.

The front view which shows the whole structure of a measuring device. FIG. 2 is a partially omitted enlarged view of FIG. 1. The II sectional view taken on the line of FIG. 2 explaining the aspect of the measurement part hold | maintained at a long body. The II-II sectional view taken on the line of FIG. 2 explaining the aspect of a 1st leg part. The figure explaining the modification of a 1st leg part. The figure explaining another modification of a 1st leg part. The III-III sectional view taken on the line of FIG. 2 explaining the aspect of a 2nd leg part. The figure explaining the state which adjusts a measuring element to a reference position, and makes the value of a measurement part zero. The figure which shows the state before and behind making a pair of contact of a 1st leg part and a 2nd leg part contact | abut to a measuring object. The figure which shows the state before and behind the 2nd leg part and measurement part of a measuring device sliding with respect to a elongate body. The figure which shows the state which adjusted the protrusion length of a pair of contact of a 2nd leg part, and made it contact with a measuring object. The figure explaining the state which the measurement part measured in the state which the measuring device inclined.

  Hereinafter, the best embodiment of the measuring instrument 1 according to the present invention will be described with reference to the drawings. The measuring instrument 1 of the present embodiment is a measuring instrument 1 that measures the amount of deformation such as warpage of the measuring object 2. The measurement object 2 is an outer wall siding material of an existing building in this embodiment. When the outer wall siding material has a warp exceeding a predetermined reference value, the design of the exterior appearance of the building is impaired. Therefore, if necessary, the amount of deformation such as the warp of the outer wall siding material using the measuring instrument 1 of the present embodiment. Measure. The outer wall siding material has a deep concavo-convex pattern on the surface on the outdoor side, and shades are given to the outer wall surface of the building to enhance the design. When measuring the amount of deformation such as warping of an existing outer wall siding material in a building, the uneven pattern such as a joint-like pattern on the outdoor side surface of the outer wall siding material is relatively flat. It is necessary to hold the measuring instrument 1 at the position. The measurement object 2 is not limited to the outer wall siding material. For example, a relatively large building material that is long in the height direction or the horizontal direction such as a sash or a fitting may be used as the measurement object 2.

  As shown in FIG. 1, the measuring instrument 1 includes a long body 3 that extends linearly, a measuring unit 4 that is held by the long body 3, and a measurement that is held by the long body 3 and the long body 3. A first leg 5 that maintains a distance from the object 2 and a second leg 6 that is held by the elongated body 3 on the opposite side of the first leg 5 with the measuring unit 4 interposed therebetween.

  As shown in FIGS. 1 and 3, the long body 3 is an aluminum frame that extends linearly. The elongated body 3 has a quadrangular prism shape, and the elongated body 3 is formed with one groove 7 on each of the upper and lower surfaces and two grooves 7 on both side surfaces. In this embodiment, for convenience of explanation, the measurement object 2 side is described as the “lower surface” and the opposite side of the measurement object 2 as the “upper surface” when measuring with the measuring instrument 1. Two surfaces parallel to the surface to be measured and perpendicular to the length direction of the long body 3 will be described as “side surfaces on both sides”. In addition, the structure of the elongate body 3 is not limited to the above-mentioned thing, What kind of thing may be sufficient as long as it is the material and cross-sectional shape which have the length and rigidity required for a measurement.

  The measuring unit 4 is a digital depth gauge in the present embodiment. As shown in FIGS. 2 and 3, the measuring unit 4 includes a base 41 slidably held in a groove 7 provided on the side surface of the long body 3, and a digital display unit 42 fixed to the base 41 and in the center. The main body 43 is provided, and a scale 45 that is slidably inserted into the main body 43 and has a probe 44 at the tip. By adjusting the reference position to zero in advance, the distance that the scale 45 has moved in the vertical direction with respect to the main body 43 is displayed on the digital display unit 42. The base 41 is provided with two through holes, and bolts 46 are inserted into the respective through holes and screwed into nuts 47 inserted into the grooves 7 provided on the side surfaces of the long body 3. The measuring unit 4 is slidably held on the long body 3. The measurement unit 4 may use a dial gauge instead of the depth gauge.

  As shown in FIG. 3, the measuring units 4 are respectively held on both sides of the elongated body 3 with the elongated body 3 interposed therebetween. The number of measuring units 4 in the measuring instrument 1 of the present invention is not limited to two across the long body 3, and the plurality of measuring units 4 are held in the grooves 7 on one side of the long body 3. May be. Further, if there is no problem in measurement accuracy, only one measuring unit 4 may be provided.

  As shown in FIGS. 2 and 4, in the present embodiment, the first leg 5 has one piece 51 that contacts the lower surface of the long body 3, and the other piece 52 that extends from the long body 3 to the measurement object 2 side. It is an angle material with a thickness of about 2-3 mm formed to project. The other piece 52 of the first leg 5 is disposed perpendicular to the length direction of the long body 3. A through hole is formed on one piece 51 side of the first leg 5, and the bolt 53 is screwed into the nut 54 slidably inserted into the groove 7 on the lower surface of the long body 3 through the through hole. The first leg 5 is slidably held in the longitudinal direction of the long body 3. In addition, the 1st leg part 5 may be the volt | bolt 53 screwed together to the nut 54 slidably inserted in the groove | channel 7 of the lower surface of the elongate body 3, for example, as shown in FIG. In such a case, the head of the bolt 53 protrudes downward, and the distance between the elongated body 3 and the measuring object 2 can be maintained by bringing the head into contact with the measuring object 2.

  In addition, the 1st leg part 5 may be formed so that the protrusion length to the measuring object 2 side can be adjusted. For example, as shown in FIG. 6, the first leg 5 has a bolt 55 that is slidably inserted into the groove 7 on the lower surface of the long body 3, and a length that is screwed into a threaded portion of the bolt 55. It is formed from the nut 56, and the length of the first leg portion 5 including the bolt 55 and the long nut 56 is adjusted by fastening or loosening the long nut 56 to the bolt 55. The protruding length can be adjusted.

  As shown in FIGS. 1 and 2, the second leg portion 6 is disposed on the opposite side of the first leg portion 5 with the measuring portion 4 interposed therebetween and is slidably held on the long body 3. Then, as shown in FIG. 7, the second leg portion 6 is disposed on both sides of the long body 3, and a pair of holding angles 61 held by the long body 3, and these holding angles 61. And a pair of contactors 62 that protrude toward the measurement object 2 and that have their tips abutting against the measurement object 2 and maintaining the distance between the elongated body 3 and the measurement object 2.

  The holding angle 61 includes a contact piece 63 that contacts the side surface of the long body 3, and a holding piece 64 that spreads from the end of the contact piece 63 on the measurement object 2 side to the side of the long body 3. ing. The contact piece 63 is formed with two through holes at the top and bottom, and a bolt 65 inserted into each through hole is screwed into a nut 66 inserted into the groove 7 on the side surface of the long body 3. Thus, the holding angle 61 is slidably held on the long body 3. A screw hole 67 is formed in the holding piece 64, and a bolt-shaped contact 62 is screwed into the screw hole 67. With this configuration, the pair of contacts 62 can slide in the length direction of the long body 3 independently of each other. Further, the contact 62 has a bolt shape and the head protrudes toward the measurement object 2 side. The contact length of the contactor 62 can be adjusted by rotating in the fastening or relaxing direction with respect to the screw hole 67 of the holding piece 64.

  When measuring the warp or the like of the measuring object 2 using the measuring instrument 1 configured as described above, first, as shown in FIG. 8, the first leg of the measuring instrument 1 is formed on a substantially flat member. 5 and the pair of contacts 62 of the second leg 6 are brought into contact with each other, and the value of the measuring unit 4 is set to zero in a state where the measuring piece 44 of the measuring unit 4 is brought into contact. The substantially flat member may be a member that is close to a flat surface such as another part of the building, such as a window glass, or may be an aluminum shape that is separately brought in for zero point adjustment. . In the present invention, the “reference position” refers to bringing the pair of contacts 62 of the first leg 5 and the second leg 6 of the measuring instrument 1 into contact with a substantially flat member and further bringing the measuring piece 44 of the measuring unit 4 into contact. In the state, it refers to the position of the tip of the probe 44.

  When the value of the measuring unit 4 is adjusted to zero, as shown in FIG. 9A, the measuring instrument 1 is held so that the first leg 5 is arranged as flat as possible on the measuring object 2. To do. At this time, since the other piece 52 of the first leg 5 has a thickness of about 2-3 mm, for example, if it is arranged in a valley position such as a horizontal joint pattern of the concavo-convex pattern of the measurement object 2, it is arranged in a relatively flat position can do.

  Then, as shown in FIG. 9B, the pair of contacts 62 of the second leg 6 and the measuring element 44 of the measuring unit 4 are relatively flat at the same depth as the first leg 5. Adjust to place in. Specifically, the holding angle 61 of the second leg 6 is slid so that the contactor 62 is positioned at the valley of the uneven pattern, for example. As shown in FIGS. 10 (A) and 10 (B), the pair of contacts 62 can be slid independently in the length direction of the elongated body 3, so that the uneven pattern of the measuring object 2 is complicated and the horizontal direction Even if the concave and convex valleys are not arranged at the same height, the pair of contacts 62 of the second leg portion 6 can be moved by measuring each pair of contacts 62 independently. Can be disposed at a position where the posture of the head is stable.

  And the uneven | corrugated pattern of the measuring object 2 is more complicated, and arrange | positions a pair of contactor 62 so that the measuring device 1 may be stabilized with a suitable attitude | position by the independent slide of a pair of contactor 62 as mentioned above. 11, it is possible to measure by rotating the contactor 62 in the fastening or loosening direction with respect to the screw hole 67 provided in the holding piece 64 and adjusting the protruding length as shown in FIG. The measuring device 1 can be arranged in an appropriate posture on the surface of the object 2 to be measured.

  Thus, the measuring instrument 1 presses the three points of the pair of contacts 62 of the first leg part 5 and the second leg part 6 against the measuring object 2 as supporting points, whereby the elongated body 3 and the measuring object are measured. Since the distance to 2 is maintained, the posture of the measuring instrument 1 can be stabilized.

  And it adjusts so that the measuring element 44 of the measurement part 4 may be arrange | positioned in the comparatively flat position of the depth similar to the 1st leg part 5. FIG. Specifically, as shown in FIG. 9B, the measuring units 4 on both sides are slid so that the measuring element 44 is positioned at, for example, a valley of the concavo-convex pattern. Since the measuring units 4 can also be slid independently in the longitudinal direction of the long body 3, as shown in FIG. 10B, each measuring element 44 is attached to the first leg even when the concavo-convex pattern is complicated. It can be adjusted so as to be arranged at a relatively flat position having the same depth as the portion 5.

  Then, the scale 45 is moved relative to the main body 43 so that the tip of the measuring element 44 contacts the measurement object 2, and the value displayed on the digital display unit 42 is read. In the present embodiment, since the measuring unit 4 is held on both sides of the long body 3, two values can be obtained.

  Then, based on the two values measured by the measurement unit 4, it is determined whether or not the deformation amount of the measurement object 2 is within an allowable range. If the measuring instrument 1 is in an appropriate posture and the object 2 to be measured is not uneven, the values measured by the two measuring units 4 match, so that the matched values are within a predetermined allowable range. You just have to judge. On the other hand, if the values measured by the two measuring units 4 do not match, the pair of contacts 62 of the first leg 5 or the second leg 6 is not disposed at an appropriate position, or a measuring instrument. It is assumed that the measuring device 1 is tilted with respect to the measurement object 2 depending on whether the long body 3 of 1 is twisted due to use over time. Alternatively, it is assumed that the protruding lengths of the measuring elements 44 of the two measuring units 4 are different depending on the unevenness of the measuring object 2.

  Therefore, when the two values do not match, it can be recognized that there is some problem in the measurement and a problem occurs in the accuracy of the measurement. In such a case, for example, it can be dealt with by visually checking whether the position of the pair of contacts 62 of the first leg 5 and the second leg 6 or the position of the measuring element 44 of the measuring unit 4 is satisfactory. Can do.

  Further, when the two values of the measurement unit 4 do not match, for example, an average value of the two values can be calculated to determine whether or not the deformation amount of the measurement object 2 is within the allowable range. By taking the average value in this way, for example, as shown in FIG. 12, even when the posture of the measuring instrument 1 is tilted, the value of the one measuring unit 4 is farther from the measuring object 2 than the actual one. Since the value of the other measuring unit 4 indicates a value closer to the measuring object 2 than the actual value, it can be determined based on a value relatively close to the actual value.

  Further, when the two values of the measurement unit 4 do not match, it can be determined whether, for example, a value having a larger deformation amount of the two values is within an allowable range of the deformation amount of the measurement object 2. If it judges in this way, since it can be judged whether it is a tolerance | permissible_range based on the value larger than actual deformation amount, generation | occurrence | production of a malfunction can be suppressed beforehand.

  As described above, since it is determined whether or not the deformation amount of the measurement object 2 is within the allowable range based on the measurement values of the two measurement units 4, the measurement object is considered in consideration of the inclination of the measurement instrument 1 and the twist of the measurement instrument 1 itself. It is possible to determine whether the deformation of the object 2 is within an allowable range, and it is possible to make a more appropriate determination.

  Needless to say, the embodiment of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the scope of the idea of the present invention.

  The measuring instrument 1 and the measuring method according to the present invention can be suitably used as a jig and a method for measuring warpage of an outer wall siding material of a building such as a house.

DESCRIPTION OF SYMBOLS 1 Measuring instrument 2 Measuring object 3 Long body 4 Measuring part 5 1st leg part 6 2nd leg part 62 Contactor

Claims (6)

A measuring instrument for measuring the amount of deformation of a measurement object,
An elongated body extending linearly;
A measurement unit that is held by the elongated body and measures a distance from a reference position to the measurement object;
A first leg that is held by the elongate body and that maintains a distance between the elongate body and the measurement object with a tip abutting against the measurement object;
A second leg portion held by the elongated body on the opposite side of the first leg portion across the measurement portion;
With
The second leg portions are respectively arranged on both sides of the elongated body, protrude toward the measurement object side, and a tip abuts on the measurement object, and the long body and the measurement object Having a pair of contacts to keep the distance between,
The pair of contacts are slidable in the length direction of the elongated body independently of each other.   The measuring device according to claim 1, wherein the pair of contacts are formed so that a protruding length toward the measuring object can be adjusted.   The first leg is slidable in a length direction of the elongated body and / or formed so that a protruding length toward the measurement object is adjustable. Or the measuring device of Claim 2.   The measuring device according to any one of claims 1 to 3, wherein the measuring unit is slidable in a length direction of the long body. A plurality of the measurement units;
The measuring device according to any one of claims 1 to 4, wherein the measuring unit is held on both sides of the elongated body. A measurement method for measuring a deformation amount of the measurement object using the measuring device according to claim 5,
After bringing the first leg and the second leg into contact with the measurement object,
Let the measurement unit held on both sides of the elongated body measure the distance from the reference position to the measurement object,
A measurement method characterized by determining whether or not the deformation amount of the measurement object is within an allowable range based on a plurality of values measured by the measurement unit.

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