JP2006038602A - Method and apparatus for measuring dimension of frontage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for measuring the dimensions of a frontage, the tilt of a pillar, and the inclination and the shape of the deflection or the like of a head jamb, without requiring experience and skill. <P>SOLUTION: The device is equipped with a rack 2 having an erected pillar 21, and a dimension measuring device body 1 to be attached to the pillar 21 of this rack 2. The device body 1 is equipped with a base 26 to be attached to the pillar 21, a turntable 3 to be attached so as to be freely rotatable to a fixed shaft 27 provided horizontally on the base 26, a rotary encoder 32 which is put on the turntable 3 and detects the angle of rotation of the turntable 3 with respect to the base 26, a wire or tape 38 and an incremental type linear encoder 33 for detecting the length from the base 26 up to a measurement point of the frontage, and a storage means put on the turntable 3 for storing the detected angle data and length data by polar coordinates causing them to correspond mutually. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention mainly relates to a frontage dimension measuring apparatus used for determining the size of a front door so as to be fitted with a front door when surrounded by a sill, a duck, and left and right pillars when performing a new work of a front door or fitting a front door. About.

  Conventionally, when installing a new collar on the frontage, the actual size of the frontage is not always the same as the actual size of the frontage. Based on this, the ridges were processed according to the shape of the frontage.

  As shown in FIG. 17, the actual dimensions of the frontage are measured by the total width a of the sill, the heights b and f of both columns, and the inclinations of both columns (called “moss amount”) g, h , I, j, k, l and the heights c, d, e for each boundary of the ridges were measured to the unit of ridge (0.3 mm).

  When measuring the inclinations g, h, i, j, k, and l of the two pillars at the frontage, as shown in FIG. , The total width a of the sill, the heights b and f of both pillars, and the inclinations of both pillars (called “moss amount”) for each boundary of g, h, i, j, k, l, and 襖The heights c, d, and e were measured to the unit of 厘 (0.3 mm).

An apparatus for measuring an actual dimension in a tunnel resistance similar to the measurement of an actual dimension of a frontage has been conventionally proposed by the following patent document. However, since tunneling does not have corners and does not require accuracy to the unit of 厘 (0.3 mm), it cannot be applied to the measurement of the actual size of the frontage.
JP 2000-304531 A JP 2004-117194 A

  In this way, measuring the actual dimensions of the frontage has been performed manually by hand, requiring experience and skill, spending a lot of time and labor, and even if the length can be measured accurately, It was difficult to accurately measure the inclination and the inclination and deflection of the Kamoi.

  In view of this, the present invention has been conceived to provide a measuring means that can accurately measure the actual size of the frontage in a short time and an apparatus that outputs the size of the hook to be fitted without requiring experience or skill.

  The frontage dimension measuring device of the present invention comprises a gantry having an upright column and a dimensional measuring device main body attached to the column of the gantry, and the dimensional measuring device main body includes a base attached to the pillar. A turntable that is rotatably provided on a shaft that is horizontally installed on the base, and an angle detection means that is mounted on the turntable and detects a turning angle of the turntable with respect to the base. And a length detector that is placed on the rotary table and detects a length from the base to the measurement point of the frontage, and a storage unit that stores the detected angle data and length data in polar coordinates in association with each other. It has.

  The frontage dimension measuring method according to the present invention includes a first step of collecting, as polar coordinate data, directions and distances of a plurality of measurement points of a frontage centering on an installed dimension measuring device main body, and among the collected polar coordinate data This is a method comprising a second step of performing coordinate conversion to XY coordinates by rotating the data corresponding to the line segment connecting both ends of the threshold on the X axis with the data corresponding to one end of the threshold as the origin.

  The room dimension measuring apparatus of the present invention is easy to carry and requires no experience or skill, so that no one can spend time and effort on the size of the frontage and the shape of the column, the inclination of the head, and the shape of the head, etc. Can be measured accurately.

  In particular, by emitting a laser beam in the direction of the turntable (the true drawing direction of the wire), rotating the laser beam and making it incident on the probe's optical sensor coupled to the tip of the wire, Therefore, it is possible to obtain accurate angle data with extremely little measurement error.

(First embodiment)
As shown in FIG. 1 to FIG. 3, the frontage dimension measuring apparatus according to the present invention includes three legs 22 that can be adjusted in height, two protrusions 23 that are arranged at intervals to be fitted into a groove of a sill, and a standing installation. The dimensional measuring device main body 1 is detachably attached to the column 21 erected on the gantry 2. Further, a laser pointer 24 that emits a laser beam upward is fixed on a straight line connecting two protrusions 23 provided on the lower side of the gantry 2. The column 21 may be configured to be removable from the gantry 2.

  As shown in the side view of FIG. 4 and the perspective view of the main part of FIG. 5, the dimension measuring device main body 1 is disposed vertically and has a base 26 that is detachably attached to a column 21 and a horizontal on the base 26. And a rotating base 3 rotatably provided via a bearing 29 on a fixed shaft 27 implanted in the direction, and a gear 28 is fixed to the base 26 concentrically with the shaft 27 for rotation. The table 3 includes a motor 31 that can mesh with the gear 28 and rotate the rotating table 3 in any direction, an incremental rotary encoder 32 that detects the rotation angle of the rotating table 3, a drawn wire or An incremental linear encoder 33 that detects the length of the tape 38, a laser light source 34 that emits a visible laser beam in the direction of the turntable 3 (the true drawing direction of the wire or tape 38), and a signal processing circuit Embedded circuit board 50 and probe An optical sensor 35 for receiving the light emitted (see FIG. 6), such as the storage battery 36 is attached for operating the entire these devices.

  Further, the dimension measuring apparatus main body 1 is provided with a display 37 for displaying the operation state of the apparatus and collected data, and a remote controller R for operating the apparatus is attached.

  The rotary encoder 32 has a rotating portion coupled to a fixed shaft 27 provided on the base 26, and its main body is fixed to the rotating base 3. When the rotating base 3 is rotated, the rotary encoder 32 rotates every predetermined angle. A two-phase pulse signal is generated.

  The linear encoder 33 winds the wire 38 with a spring. When the wire 38 is pulled out or retracted, a two-phase pulse signal is generated every time the wire 38 moves a certain distance. The wire 38 is guided to the center by pulleys 39 and 39 so as to be drawn from the reference direction of the rotary encoder 32.

  A probe 4 having response means is coupled to the tip of the wire 38. As shown in the perspective view of FIG. 6 (a), the probe 4 has a sharp tip 41, a shape with an open rear end, and a crank 42 that rotates about the vicinity of the tip. And a wire 38 is coupled to the crank 42, and the response means is an optical sensor 43 such as a phototransistor for receiving a laser beam provided on the crank 42, and the optical sensor 43 receives the laser beam. The LED 44 re-radiates infrared rays in the light receiving direction. If the probe 4 is provided with a remote control function, it is possible to avoid losing the remote control.

  When a wire 38 is coupled via a crank 42 that rotates about the vicinity of the tip of the probe 4 and an optical sensor 43 is provided on the crank 42, when the probe 4 is adjusted to a measurement point, Even if the orientation direction of the probe 4 with respect to the wire 38 is inclined, the optical sensor 43 is always oriented in the direction of the wire 38, so that data can be collected accurately.

  A protrusion 45 that fits into the groove of the sill is provided at the tip of the probe 4, and when measuring the sill portion, as shown in FIG. 6B, the tip of the protrusion 45 is the bottom surface of the groove. It is comprised so that it may contact. In addition, when measuring the Kamoi part, as shown in FIG. 6 (c), the surface surrounded by the bottom of the sill groove, the surface of the Kamoi, the inner surfaces of both columns, as shown in FIG. Measure as a frontage to fit the heel.

  As shown in FIG. 7, the signal processing circuit 5 includes a first up / down / counter 37 that counts the two-phase pulses generated from the operation switch and display 37, the CPU 54 that controls the entire apparatus, and the rotary encoder 32. A counter 55, a second up / down counter 56 that counts two-phase pulses generated from the linear encoder 33, the count values of these two counters 55 and 56, and the output of the optical sensor 35 are input to the CPU 54. A motor control circuit 53 for controlling the motor 31, a ROM 51 for storing a processing program, a RAM 52 for temporarily storing data, an SIO 57 for exchanging data with an external device, and the like.

  Next, a procedure for measuring the size of the frontage with the apparatus of the first embodiment configured as described above will be described.

  First, as shown in the front view of FIG. 8 (a), the gantry 2 is installed at the center of the frontage, and as shown in the plan view of FIG. The dimension measuring device main body 1 is attached to the column 21 so that the wire 38 is fitted in the groove and the outlet of the wire 38 faces downward. Then, while operating the laser pointer 24 to emit the laser beam, the height of the three legs 22 is adjusted so that the laser beam irradiates the center of the groove of the Kamoi.

  Then, by operating the remote control device R, the conditions necessary for measurement such as “reference size of frontage”, “size of frontage (sheet standing)”, “number of grooves”, “opening / closing type” are input and “initial” Set. At this time, data such as “site name”, “room number”, and “type of bag” can be input simultaneously.

  According to the input initial setting conditions, if the number of measurement points is a measurement of a frontage where four normal ridges are fitted, as shown by “1” to “12” in FIG. There are 4 places, 3 places on the threshold, 3 places on the Kamoi, and 2 places between the left and right pillars. In this initial setting, the count values of the two up / down counters 55 and 56 are cleared to zero.

  After pulling the wire 38 from the linear encoder 33 and aligning the tip 45 of the probe 4 with the lower left corner “1” as the first measurement point, the motor 31 is controlled by the operation of the remote control device R and rotated. The table 3 is rotated clockwise at a low speed.

  When the laser beam emitted from the laser light source 34 of the turntable 3 crosses the probe 4, the laser beam is incident on the optical sensor 43 of the response device. Re-radiate in the direction.

  In this manner, during the period until the infrared rays are re-radiated from the LED 44 of the response device of the probe 4, the rotary table 3 causes the two-phase pulses generated from the rotary encoder 32 to be up / down counters. The counting continues at 55 and the two-phase pulse generated from the linear encoder 33 continues to be counted by the up / down counter 56.

  Then, at the moment when the infrared light re-radiated from the LED 44 of the response device is received by the optical sensor 35 of the turntable 3, the count values of the up / down counters 55 and 56 are set to the angle of the first measurement point “1”. Data and length data are stored in the RAM 52.

  Next, if the tip 45 of the probe 4 is placed on standby at the middle “2” of the left column, which is the second measurement point adjacent to the right, the turntable 1 continues to rotate, and the laser beam Is incident on the optical sensor 43 of the response device across the probe 4 and the infrared rays are re-radiated from the LEDs 44 in the incident direction. At the turntable 3, at the moment when the second re-radiated infrared ray is received by the optical sensor 35 of the turntable 3, the count values of the up / down counters 55 and 56 are respectively set to the second measurement point “2”. Are stored in the RAM 52 as angle data and length data.

  Similarly, the tip portion 45 of the probe 4 is sequentially aligned with the measurement points “3” to “12” adjacent to the clockwise direction, and angle data and length data for each measurement point are stored in the RAM 52. In this way, when the data of the number of measurement points under the initially set conditions is stored in the RAM 52 as polar coordinate data of the frontage plane, the polar coordinate data stored in the RAM52 is coordinate-converted into XY coordinates, and one frontage is obtained. Measurement is completed.

  Such an operation is executed at each frontage to be measured, and data on each frontage is collected in the RAM 52.

The data stored in the RAM 52 is polar coordinate data centered on the place where the dimension measuring device main body 1 is installed. As shown in FIG. 10, the size of each side L _{1 to} Ln is sandwiched between the two sides. Since the included angles θ _{2 to} θ n (where n is the number of measurement points), the opposite side length Si (where i is an integer of 2 or more) is
Si = {L ₁ ² + Li ² −2L ₁ · Li · cos θ i} ^1/2
Can be obtained by
Also, the unknown included angle φi between L ₁ and Si in the triangle formed by L ₁ , Li and Si is
cosφi = (L ₁ ² + Si ² −Li ² ) / (2L ₁ · Si)
Than,
φi = cos ⁻¹ {(L ₁ ² + Si ² −Li ² ) / (2L ₁ · Si)}
It can ask for. In this way, the actual shape of the frontage can be measured.

  As shown in FIG. 11 (a), in the collected polar coordinate data, the line segment connecting the measurement point “1” and the measurement point “9” is a threshold and is known to be substantially horizontal. As shown in FIG. 11B, after the measurement point “1” is set to the origin, the polar coordinate data is rotated around the measurement point “1” as shown in FIG. Align “9” on the X axis.

  And as shown in FIG.11 (d), let line segment "1-9" be the total width of a frontage, and let Y coordinate of the left corner / right corner of a Kamoi be the left side height / right side height of a frontage. The total width of the frontage is divided by the number of hooks (two in the case shown in FIG. 11D) to be the width of each hook to be fitted, and the width of each hook to be fitted based on the measured shape and dimensions of the frontage Output the shape and machining dimensions.

  The most widely used bases for cocoons sold by specialized manufacturers include “Japanese bases (frames made by combining thin squares in a grid)”, “Corrugated bases” and “Styrofoam bases”. Since there are few “cutting margins” for cutting the surroundings into the desired dimensions, there are a variety of standard sizes (in increments of 5 minutes) that are available Yes.

  Each size of the standard size “Waji no Shizuku” sold in the table is stored in advance in the table. From the data stored in the table, according to the measured size of the frontage, And the machining dimensions for the selected substrate must be output. In addition, since the edge is attached to the periphery of the base, the dimension in consideration of the width of the edge must be output.

  For example, in a Japanese bowl, when the left column is tilted (mossed), the square on the left side of the Japanese bowl has a small cutting margin, as shown by the diagonal line in FIG. Therefore, when the square member that hits the bottom is cut, and the right column is inclined (mossed), the right square member of the base of the wrinkle is as shown by the diagonal line in FIG. Since the cutting margin is small, the selection and processing dimensions of the Japanese base are output so as to cut the square material that hits the bottom.

  As shown in FIG. 13A, for example, when the left column is bent in the middle, the oblique portion is cut, and as shown in FIG. 13B, the right column is bent in the middle. In such a case, an instruction to cut the oblique portion is output.

  The selection of the Japanese base and the output of the processing dimensions may be output by a printer, and the processing dimensions may be transmitted to the processing apparatus as electronic data.

(Second Embodiment)
In the first embodiment, as a means for detecting the length from the rotation center of the dimension measuring apparatus main body 1 to the measurement point, the probe 4 is attached to the tip of the drawn wire or tape 17, and the probe 4 The length of the wire or tape 17 drawn in accordance with the measurement point is detected.

A laser distance meter can be used as such a length measuring means. As the laser distance meter, “Laser Distance Sensor LDS-1” sold by Murakami Giken Sangyo Co., Ltd., which incorporates a module “DISTO pro ⁴ a” manufactured by Leica Geosystems of Switzerland can be used. This laser rangefinder has "distance data" that indicates the distance to the target and "reflection intensity data" that indicates the intensity of the received reflected light as output data. A mode can be selected.

  The directivity direction (corresponding to the angle) of the laser beam emitted from the laser distance meter can be collected from the count value obtained by counting the pulses output from the rotary encoder 32, as in the first embodiment. The collected “angle data” is stored in the RAM 52 together with the “distance data”.

  In a laser rangefinder, the irradiated laser beam has a certain extent of spread, so it is difficult to accurately measure the angle of the corner and the distance to the corner. However, the shape of the frontage is formed by four corners where two pillars and the straight part of the sill / kamoi intersect, and as shown in FIG. The positions of the points x1, x2 and y1, y2 are obtained, and the position where two straight lines connecting the two points cross each other may be set as a virtual corner.

(Third embodiment)
In the first embodiment, the corners of the frontage are determined in advance as “1”, “3”, “7”, “9”, but the measurement may be performed without determining the number of measurement points. Is possible.

In the second embodiment, as shown in FIG. 15, the angle formed by two adjacent line segments measured is examined, and if the angle is within 135 degrees (α ₂ ) including a right angle, for example, it hits a corner. If it is 135 degrees or more, it is determined that it corresponds to a substantially straight portion (α ₁ ) (α ₃ ) such as a duck, sill, or pillar.

  In this way, by automatically determining the four corners, it is possible to determine the measurement points between the corners and the number of measurement points by simply determining the measurement start points in advance. It can be chosen arbitrarily according to.

(Fourth embodiment)
The first embodiment includes a gantry 2 having three legs 22 that can be adjusted in height, two protrusions 23 that fit into a groove in a sill, and an upright column 21, and the lower side of the gantry 2. A laser pointer 24 that emits a laser beam upward is fixed immediately above a line connecting the two protrusions 23 provided in the.

  In the third embodiment, as shown in FIG. 16, a gantry 2 having protrusions 23 arranged at intervals so as to be fitted into the groove of the sill, and a telescopic column erected on the gantry 2 are provided. Yes. The column includes a cylindrical member 25 erected on the gantry 2, a rod member 26 that slides inside the cylindrical member 25, and a coil spring that acts in the cylindrical member 25 to push up the rod member 26. A protrusion 27 is provided at the tip of the bar member 26 to be fitted in the groove of the head.

  When measuring the frontage, the rod member 26 is pushed into the cylindrical member 25 against the elasticity of the coil spring, and the two projections 23 of the gantry 2 are fitted in the groove of the sill in the middle of the frontage, The member 26 is extended, and the protrusion 27 at the tip is fitted into the groove of the Kamoi.

  Then, the dimension measuring device main body 1 is detachably attached to the cylindrical member 26 of the column, and the frontage is measured in the same manner as in the first or second embodiment.

(Other embodiments)
In the above embodiment, the measurement of the shape and dimensions of the frontage surrounded by the sill, the duck, and the left and right pillars has been described as an example, but the measurement of the tunnel mine and the room performed when dividing the room It can also be applied to the measurement of the cross-sectional shape.

The front view which shows 1st Embodiment of the frontage dimension measuring apparatus of this invention, FIG. 1 is a side view of the apparatus shown in FIG. FIG. 1 is a plan view of the apparatus shown in FIG. The side view which shows the dimension measuring apparatus main body used with the apparatus shown in FIG. The perspective view which decomposed | disassembled and showed the dimension measuring apparatus main body used with the apparatus shown in FIG. 1A is a perspective view of a probe coupled to the tip of a wire in the apparatus shown in FIG. 1, FIG. 5B is a diagram showing a state in which the probe is brought into contact with the threshold when the threshold is measured by the probe, and FIG. The figure which shows the state made to contact | abut to a Kamoi when measuring a Kamoi part (c) FIG. 2 is a block diagram showing a signal processing circuit of the apparatus shown in FIG. Front view (a), side view (b) showing a state of installing the dimension measuring device, The front view which shows the condition which collects frontage data with the apparatus shown in FIG. The figure explaining the method of obtaining the length of one side from the length of two sides and a included angle, The figure explaining the method of converting the graphic data collected by the polar coordinate into XY coordinate data, The figure explaining the method of aligning the base of the fence when the front pillar is tilted, The figure explaining the method to match the base of the fence when the front pillar is bent, The figure which shows the condition which collects the data of frontage by 2nd Embodiment of the frontage dimension measuring apparatus of this invention, The figure which shows the condition which collects frontage data by 3rd Embodiment of the frontage dimension measuring apparatus of this invention, The front view which shows 4th Embodiment of the frontage dimension measuring apparatus of this invention, The figure explaining the method of measuring the actual size of the conventional frontage, It is a figure explaining the method of measuring the inclination of the conventional pillar.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Dimensional measurement apparatus main body 2 Base 3 Turntable 4 Probe 5 Signal processing circuit
21 pillars
22 legs
23 Protrusion
24 Laser pointer
26 base
31 Motor
32 Rotary encoder
33 Linear encoder
34 Laser light source
35 Visible laser beam
36 Storage battery
37 Light sensor
38 Display
39 Wire or tape
42 cranks
43 Optical sensor
44 LED
50 circuit board
53 Motor control circuit
54 CPU
55, 56 Up / down counter R Remote control

Claims (11)

A gantry having an upright column and a dimension measuring device main body attached to the column of the gantry, the dimensional measuring device main body being installed in the horizontal direction on the base and the base attached to the pillar A turntable provided rotatably on the shaft, angle detection means mounted on the turntable and detecting a turn angle of the turntable with respect to the base, and placed on the turntable, Dimensions of the frontage, comprising length detection means for detecting the length from the base to the measurement point of the frontage, and storage means for storing the detected angle data and length data in polar coordinates. measuring device. The means for detecting the rotation angle of the turntable relative to the base is a rotary encoder, and the means for detecting the length from the base to the measurement point of the frontage is the length of the wire or tape drawn to the measurement point 2. The frontage dimension measuring apparatus according to claim 1, which is a linear encoder for detecting a gap. A laser light source mounted on a turntable and emitting a laser beam in the direction of the turntable; a probe having a sharp tip coupled to the tip of a wire or a tape; and the probe After the laser beam is received, response means for re-radiating the light beam, and after aligning the tip of the probe with the reference point to be measured existing in the directivity direction, 3. The frontage dimension measuring apparatus according to claim 2, further comprising storage means for storing angle data and length data when re-radiated. The means for detecting the rotation angle of the turntable relative to the base is a rotary encoder, and the means for detecting the length from the base to the measurement point of the frontage is a laser distance meter that detects the length to the measurement point. The frontage dimension measuring apparatus according to claim 1, wherein the frontage dimension measuring apparatus is provided. There are provided two protrusions arranged at intervals to be fitted into a groove of a sill provided on the lower side of the gantry, and a laser pointer for emitting a laser beam upward provided immediately above a straight line connecting the two protrusions The frontage dimension measuring apparatus according to claim 1, wherein A column made up of a gantry provided with two projections on the lower side and spaced apart from the sill groove, a cylindrical member erected on the gantry, and a rod member that slides in the cylindrical member 2. The frontage dimension measuring apparatus according to claim 1, further comprising: a protrusion that fits into a groove of a duck at the tip of the bar member. A first step of collecting, as polar coordinate data, directions and distances of a plurality of measurement points of a frontage centered on an installed dimension measuring device main body;
A second step of performing coordinate conversion to XY coordinates by rotating the data corresponding to the line segment connecting the both ends of the threshold with the data corresponding to one end of the threshold out of the collected polar coordinate data on the X axis. A frontage dimension measuring method characterized by comprising: A third step of calculating a processing dimension for the base of each ridge based on the number of sill / kamoi grooves and the number of ridges to be fitted so as to match the shape and dimensions of the frontage converted to XY coordinates The frontage dimension measuring method according to claim 7, wherein Based on the number of sill / kamoi grooves and the number of hooks to be fitted, “cutting” is selected from the bases of various standard size tiles so as to match the shape and dimensions of the frontage converted into XY coordinates. 9. The frontage dimension measuring method according to claim 7 or 8, further comprising a fourth step of selecting a base of the ridge. 9. The frontage dimension measuring method according to claim 8, wherein the calculated processing dimension of the base is transmitted as electronic data to a processing apparatus. 10. The frontage dimension measuring method according to claim 8, wherein the calculated processing size of the base and / or the base of the selected wrinkle is output by a printer or the like.

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