JP2014215049A - Shape inspection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shape inspection device for inspecting a shape of a three-way frame more precisely than before.SOLUTION: A shape inspection device 100 for inspecting a shape of a three-way frame of an elevator entrance door system includes: a three-way frame 1 covering an opening part provided on an entrance of each floor of an elevator; and an entrance door provided in an opening part and capable of opening and closing along a doorsill 3 in linking with a car side door of the elevator, and further includes: angle measuring means 8A, 8B for measuring an angle of the inclination of a side face 101 of the three-way frame for the Z axis in a direction reverse to a gravity direction; the angle of the inclination of a top face 103 of the three-way frame for the Y axis, and the angle of the inclination of the doorsill for the Y axis; distance measuring means for measuring a distance up to the side face of the three-way frame from distance measuring means 6A and the distance up to the top face of the three-way frame from distance measuring means 6B; and a shape calculation part 10 for calculating a predetermined parameter value showing the shape of the three-way frame using a coordinate value on a YZ plane formed by the Y axis and the Z axis based on a signal showing the angle and the signal showing the distance.

Description

  The present invention relates to a shape inspection apparatus that inspects the shape of a three-way frame that covers an opening provided at a landing on each floor of an elevator.

  In general, an elevator installed in a building is configured such that an elevator car moves up and down in a hoistway extending in the vertical direction of the building and can move from a predetermined floor to another floor. FIG. 1 is a perspective view of the vicinity of the elevator landing viewed from the elevator landing side, and FIG. 2 is a horizontal sectional view showing an example of the landing door 2 and three-way frame 1 of the elevator of FIG. 1 and 2, the three-sided frame 1 covering the opening provided at the landing on each floor of the elevator, and provided at the opening, can be opened and closed horizontally along the sill 3 in conjunction with the elevator car side door. There is a slight gap 4 between the two landing doors 2.

  In the elevator as described above, when a fire occurs in a building, smoke generated by the fire passes through the gap 4 described above, from the hoistway to the landing side, or from the landing side to the hoistway. And invade. In order to avoid this intrusion, measures are taken to close the gap 4 by using an airtight member on the four sides surrounding the landing door 2. When such an elevator is newly installed in a building, a dedicated smoke-proof landing door may be installed. On the other hand, an air-tight member is installed to improve the smoke-shielding performance of the existing elevator. If the set of three-way frames 1 is replaced, it is possible to install the smoke shielding door with high accuracy. In that case, it is desirable to install the airtight member by diverting the existing three-sided frame 1 in consideration of the remodeling construction cost and the construction period. However, when the airtight member is installed using the existing three-way frame 1, if the shape of the three-sided frame 1 is deformed more than a certain value, the gap 4 can be completely filled even after the airtight member is installed. Therefore, there arises a problem that the smoke shielding performance cannot be ensured. Therefore, in order not to cause such a problem, it is necessary to measure the shape of the three-way frame 1 in advance and determine whether the air-tight member can be installed before diverting the existing three-way frame 1 and installing the air-tight member. Conventionally, as a technique for measuring the shape of the three-way frame 1, for example, techniques disclosed in Patent Document 1 and Patent Document 2 have been proposed.

  In Patent Document 1, as a method for measuring the perpendicularity and length of one side of the door frame and the intersection of the one side, a reference bar is pressed against one side, and a detection unit provided on the reference bar The height of the door frame is measured by one side of the door frame and two sides of the right-angled bar placed at right angles to the reference bar. The measuring instrument for building which measures the width and height of a door frame with the detection part provided in the right-angle rod material is measured.

  Further, Patent Document 2 includes a non-contact horizontal distance meter, a rotation mechanism for horizontally rotating the horizontal distance meter, and a rotation angle detection device for detecting the rotation angle of the rotation mechanism. There is disclosed a dimension measuring device capable of measuring the dimension of an elevator based on the rotation angle of the horizontal distance meter and the distance to the measurement point acquired from the meter and the rotation angle detecting device.

JP-A-4-281979 JP 2001-227949 A

  However, in the building measuring instrument in Patent Document 1, since the squareness and dimensions are measured with reference to one of the four sides constituting the three-way frame 1 of the elevator, the landing door 2 attached with reference to the direction of gravity. There is a problem that the airtight member for smoke shielding cannot be installed between the frame and the three-way frame 1 without a gap. Further, the side surface of the three-way frame 1 may have a curvilinearly distorted shape as illustrated in FIGS. 3A to 3C, and for a shape that is curved in a vertically symmetrical manner as illustrated in FIG. 3A. Although it can be measured, depending on the position of the piece and the height in the longitudinal direction of the reference bar, a vertically distorted curved shape as shown in FIG. 3B and a vertical asymmetry as shown in FIG. 3C However, there is a problem in that it cannot be distinguished from a curved shape.

  Moreover, in the dimension measuring apparatus in Patent Document 2, since the measuring apparatus is installed on the car and the dimension measurement based on the direction of gravity cannot be performed, the landing door 2 and the three-way frame 1 attached with respect to the direction of gravity are used. There was a problem that the airtight member for smoke shielding could not be installed without a gap. Further, when the shape of both sides of the three-sided frame 1 is parallel as shown in FIG. 4, it can be measured with a non-contact type distance meter, but as shown in FIG. 2, both sides of the three-sided frame 1 are measured. For example, when a non-contact type laser distance meter is used, the light beam does not return to the apparatus, so that the distance cannot be measured normally. there were.

  The object of the present invention is to solve the above problems and provide a shape inspection apparatus that can accurately determine whether or not an airtight member can be attached to a three-way frame by measuring the shape of the three-way frame with reference to the direction of gravity. There is to do.

The shape inspection apparatus according to the present invention is
Elevator landing door comprising a three-sided frame covering the opening provided at the landing on each floor of the elevator, and a landing door provided at the opening that can be opened and closed along the sill in conjunction with the elevator car side door A shape inspection device for inspecting the shape of the three-way frame of the system,
In a coordinate system having an X axis, a Y axis, and a Z axis that are orthogonal to each other, the angle of inclination of the side surface that forms the three-sided frame with respect to the Z axis in the direction opposite to the gravitational direction, and the upper surface that forms the three-sided frame with respect to the Y axis An angle measuring means for measuring an angle of inclination and an angle of inclination of the sill with respect to the Y axis, and outputting a signal indicating the measured angle;
Distance measuring means for measuring the distance from the distance measuring means to the side surface forming the three-way frame and the distance from the distance measuring means to the upper surface forming the three-way frame, and outputting a signal indicating the measured distance, respectively When,
Based on the signal indicating the measured angle and the signal indicating the measured distance, a predetermined parameter indicating the shape of the three-way frame using coordinate values on the YZ plane formed by the Y axis and the Z axis And a shape calculation unit for calculating the value of.

  According to the shape inspection apparatus according to the present invention, the shape of the three-sided frame can be measured based on the direction of gravity, so that the shape of the three-sided frame can be measured more accurately.

It is a perspective view of the vicinity of the elevator landing as seen from the elevator landing side. It is a horizontal sectional view which shows an example of the landing door 2 and the three-way frame 1 of the elevator of FIG. It is a vertical sectional view showing a modification of the shape of the three-way frame 1 of the elevator of FIG. It is a vertical sectional view showing another modification of the shape of the three-way frame 1 of the elevator of FIG. It is a vertical sectional view showing another modification of the shape of the three-way frame 1 of the elevator of FIG. It is a horizontal sectional view which shows another example of the landing door 2 and the three-way frame 1 of the elevator of FIG. It is a block diagram which shows the shape inspection apparatus 100 which concerns on the 1st Embodiment of this invention, and its surrounding component. It is a front view which shows an example of the positional relationship of the three-way frame 1 and the landing door 2 of FIG. FIG. 6B is a side view of FIG. 6A. FIG. 6B is a top view of FIG. 6A. It is the front view and block diagram which show the 1st measurement state when measuring the shape of the three-way frame 1 using the shape test | inspection apparatus 100 of FIG. It is the front view and block diagram which show the 2nd measurement state when measuring the shape of the three-way frame 1 using the shape test | inspection apparatus 100 of FIG. It is the front view and block diagram which show the 3rd measurement state when measuring the shape of the three-way frame 1 using the shape test | inspection apparatus 100 of FIG. It is the front view and block diagram which show the 4th measurement state when measuring the shape of the three-way frame 1 using the shape test | inspection apparatus 100 of FIG. It is the front view and block diagram which show the 5th measurement state when measuring the shape of the three-way frame 1 using the shape test | inspection apparatus 100 of FIG. It is the front view and block diagram which expanded the origin O and the point A vicinity which showed the measurement state when measuring the coordinate on the YZ plane of the point A of FIG. It is the front view and block diagram which show the 6th measurement state when measuring the shape of the three-way frame 1 using the shape test | inspection apparatus 100 of FIG. It is a front view explaining the parameter which determines the quality of the shape of the three-way frame 1 using the shape inspection apparatus 100 of FIG. It is a side view which shows another example of the positional relationship of the three-way frame 1 and the landing door 2 of FIG. It is a front view which shows another example of the positional relationship of 3 A frame 1A and the landing door 2 of FIG. FIG. 16B is a side view of FIG. 16A. FIG. 16B is a top view of FIG. 16A. It is the front view and block diagram which show the 1st measurement state at the time of measuring the shape of 3 A frame 1A of FIG. 16A using the shape inspection apparatus 100 of FIG. 5 based on the 2nd Embodiment of this invention. It is the front view and block diagram which show the 2nd measurement state when measuring the shape of the three-way frame 1A of FIG. 16A using the shape test | inspection apparatus 100 of FIG. 5 based on the 2nd Embodiment of this invention. It is the front view and block diagram which show the 3rd measurement state when measuring the shape of 3 A frame 1A of FIG. 16A using the shape inspection apparatus 100 of FIG. 5 based on the 2nd Embodiment of this invention. It is the front view and block diagram which show the 4th measurement state at the time of measuring the shape of 3 A frame 1A of FIG. 16A using the shape inspection apparatus 100 of FIG. 5 based on the 2nd Embodiment of this invention. It is the front view and block diagram which show the 5th measurement state when measuring the shape of 3 A frame 1A of FIG. 16A using the shape inspection apparatus 100 of FIG. 5 based on the 2nd Embodiment of this invention. It is the front view and block diagram which show the 6th measurement state when measuring the shape of the three-way frame 1A of FIG. 16A using the shape test | inspection apparatus 100 of FIG. 5 based on the 2nd Embodiment of this invention. It is the front view and block diagram which show the 7th measurement state at the time of measuring the shape of 3 A frame 1A of FIG. 16A using the shape inspection apparatus 100 of FIG. 5 based on the 2nd Embodiment of this invention. It is the front view and block diagram which expanded the origin O and the point P1 vicinity which showed the measurement state at the time of measuring the coordinate on the YZ plane of the point P1 of FIG. It is a block diagram which shows 100 A of shape inspection apparatuses which concern on the 3rd Embodiment of this invention, and its surrounding component. It is the front view and block diagram which show the 1st measurement state when measuring the shape of the three-way frame 1 of FIG. 6A using the shape test | inspection apparatus 100A of FIG. It is the front view and block diagram which show the 2nd measurement state when measuring the shape of the three-way frame 1 of FIG. 6A using the shape test | inspection apparatus 100A of FIG.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings. In the following embodiments, the same components are denoted by the same reference numerals, and description thereof is omitted.

First embodiment.
According to the shape inspection apparatus 100 according to the first embodiment of the present invention, the three-sided frame 1 that covers the opening provided at the landing on each floor of the elevator, the car-side door of the elevator provided in the opening, and In the elevator landing door system including the landing door 2 that can be opened and closed along with the sill 3, the shape of the three-sided frame 1 can be inspected based on the direction of gravity.

  FIG. 5 is a block diagram showing the shape inspection apparatus 100 and its peripheral components according to the first embodiment of the present invention. In FIG. 5, the shape inspection apparatus 100 includes a horizontal wire encoder 6A that measures the distance from the horizontal wire encoder 6A, and a horizontal measurement block member that is mounted on the tip of the wire 11A of the horizontal wire encoder 6A. In a coordinate system that is mounted on the horizontal measurement block 7A and the horizontal measurement block 7A and has an X axis, a Y axis, and a Z axis that are orthogonal to each other, the inclination is based on the Z axis opposite to the gravitational direction. Horizontal angle measuring device 8A that is an angle measuring means for measuring the angle and the angle of inclination with reference to the Y axis, vertical wire encoder 6B that measures the distance from vertical wire encoder 6B, and the vertical wire encoder A vertical measurement block 7B, which is a vertical measurement block member mounted on the tip of the 6B wire 11B, In the coordinate system mounted on the measurement block 7B and having the X axis, the Y axis, and the Z axis orthogonal to each other, the inclination angle with respect to the Z axis opposite to the gravity direction and the inclination with respect to the Y axis The vertical angle measuring device 8B, which is an angle measuring means for measuring the angle, the vertical wire encoder 6B, the horizontal wire encoder 6A, and the vertical wire encoder 6B are fixed and installed on the sill 3 of the landing door 2. Based on the output of the base 5 that is a base for the calculation, the shape calculation unit 9 that is a means for calculating the value of a predetermined parameter indicating the shape of the three-way frame 1, and the output signal from the shape calculation unit 9 It is comprised from the shape test | inspection part 10 which determines the quality of these shapes. The shape calculation unit 9 includes an input device 12, a memory 13A, and a signal processing unit 14, and the shape inspection unit 10 includes a shape determination unit 15, a memory 13B, and a display unit 17. According to this configuration, the shape 1 of the three-way frame 1 can be measured with reference to the direction of gravity, so that the shape of the three-way frame 1 can be measured more accurately.

  In FIG. 5, the horizontal wire encoder 6A is a distance measuring means for measuring the distance from the horizontal wire encoder 6A to the side surface of the three-way frame 1, and the vertical wire encoder 6B is the same as the vertical wire encoder 6B. It is a distance measuring means for measuring the distance to the upper surface of the three-way frame 1. Here, the horizontal wire encoder 6A presses the horizontal measurement block 7A against the side surface 102 of the three-sided frame 1 based on the request signal from the input device 12, and from the horizontal wire encoder 6A to the side surface 102 of the three-sided frame 1 A signal indicating the measured distance is generated, and the signal is output to the memory 13A. Further, the vertical wire encoder 6B presses the vertical measurement block 7B against the upper surface 103 of the three-sided frame 1 based on the request signal from the input device 12, and extends from the vertical wire encoder 6B to the upper surface 103 of the three-sided frame 1. The distance is measured to generate a signal indicating the measured distance, and the signal is output to the memory 13A. It is desirable that the horizontal wire encoder 6A and the vertical wire encoder 6B are configured to be orthogonal to each other as long as the relative angle of the vertical wire encoder 6B with respect to the horizontal wire encoder 6A can be measured. The coordinates of each point can be obtained using the measured relative angle. According to this configuration, since the shape of the three-way frame 1 can be measured with reference to the direction of gravity, the shape of the three-way frame can be measured more accurately. Furthermore, since the horizontal measurement block 7A and the vertical measurement block 7B serve as a contact surface with respect to the side surface or the upper surface of the three-way frame 1, the distance can be measured more accurately.

  In FIG. 5, the horizontal angle measuring device 8 </ b> A is based on a request signal from the input device 12, and the three-sided frame is based on the Z axis on the surface where the horizontal measuring block 7 </ b> A is pressed against the side surface 102 of the three-sided frame 1. A signal indicating the measured angle is generated by measuring the inclination angle of one side surface 102, and the signal is output to the memory 13A. Further, the horizontal angle measuring device 8A measures the angle measured by measuring the angle of inclination of the sill 3 of the landing door 2 on the basis of the Y axis orthogonal to the Z axis based on the request signal from the input device 12. A signal is generated, and the signal is output to the memory 13A.

  Further, the vertical angle measuring device 8 </ b> B is based on the request signal from the input device 12, and the upper surface 101 of the three-sided frame 1 with respect to the Y axis on the surface where the vertical measuring block 7 </ b> B is pressed against the upper surface 101 of the three-sided frame 1. The tilt angle is measured to generate a signal indicating the measured angle, and the signal is output to the memory 13A. Further, the horizontal angle measuring device 8B generates a signal indicating the measured angle by measuring the angle of inclination of the side surface 101 of the three-sided frame 1 with respect to the Z axis based on the request signal from the input device 12. The signal is output to the memory 13A.

  Here, as the horizontal angle measuring device 8A and the vertical angle measuring device 8B, for example, an angle measuring device such as an acceleration sensor may be used. In the present embodiment, the horizontal angle measuring device 8A and the vertical angle measuring device 8B are mounted on the horizontal measuring block 7A and the vertical measuring block 7B, respectively. Each angle measuring device 8B itself may have a function of a measuring block member.

  In FIG. 5, the input device 12 generates request signals for acquiring output signals from the horizontal wire encoder 6A, the vertical wire encoder 6B, the horizontal angle measuring device 8A, and the vertical angle measuring device 8B, respectively. The request signal is transmitted to the horizontal wire encoder 6A, the vertical wire encoder 6B, the horizontal angle measuring device 8A, and the vertical angle measuring device 8. The memory 13A also includes a signal indicating the distance L1 from the horizontal wire encoder 6A to the side surface 102 of the three-way frame 1, a signal indicating the distance L2 from the vertical wire encoder 6B to the upper surface 103 of the three-way frame 1, and the Y axis A signal indicating an inclination angle θ1 of the sill 3 with respect to the Z axis, a signal indicating an inclination angle θ2 of the side surface 102 of the three-sided frame 1 with respect to the Z axis, a signal indicating an inclination angle θ3 of the three-sided frame 101 with respect to the Z axis, and a Y axis And a signal indicating the angle θ4 of the inclination of the upper surface 101 of the three-way frame 1 with respect to each other is stored as data. According to this configuration, since the shape of the three-way frame 1 can be measured with reference to the direction of gravity, the shape of the three-way frame 1 can be measured more accurately. Furthermore, it is possible to automatically collect the distance and angle output at the point to be measured.

  In FIG. 5, the signal processing unit 14 of the shape calculation unit 9 calculates the shape of the three-way frame 1 based on each data stored in the memory 13 </ b> A, and outputs the calculated result indicating the actual shape of the three-way frame 1. It outputs to the shape determination part 15 as a signal. That is, based on a signal indicating the measured angle and a signal indicating the measured distance, a predetermined parameter indicating the shape of the three-way frame using the coordinate values on the YZ plane formed by the Y axis and the Z axis. Calculate the value. Here, the value of the predetermined parameter is, for example, the height, width, diagonal length, etc. of the three-sided frame 1, which will be described later.

  In FIG. 5, the shape determination unit 15 has an error between a preset design value of the three-sided frame 1 stored in the memory 13 </ b> B and a predetermined parameter indicating the actual shape of the three-sided frame 1 from the signal processing unit 14. The amount is calculated, the calculated error amount is compared with a predetermined threshold value to determine the quality of the shape of the three-way frame 1, and a signal indicating the determination result is output to the display unit 17. Further, the display unit 17 receives a signal indicating a determination result from the signal processing unit 14 and displays the result. In the present embodiment, the determination result of the quality of the shape of the three-way frame 1 is output to the display unit 17. However, instead of the display unit 17, for example, a printer that prints the determination result is used. The result may be printed. Further, the shape calculation unit 9 and the shape inspection unit 10 may be integrated, and the memory 13A and the memory 13B may be a common memory. Furthermore, the shape calculation unit 9 and the shape inspection unit 10 illustrated here are only one configuration example, and other configurations may be used as long as they have similar functions.

  Next, a procedure for measuring the shape of the three-way frame 1 using the shape inspection apparatus 100 described above will be described. Here, only components other than the shape calculation unit 9 and the shape inspection unit 10 of the shape inspection apparatus 100 are illustrated.

  6A is a front view showing an example of the positional relationship between the three-way frame 1 and the landing door 2 of FIG. 1, FIG. 6B is a side view of FIG. 6A, and FIG. 6C is a top view of FIG. It is. 6A, 6B, and 6C, the Z axis is taken in the direction opposite to the gravitational direction 400, and two axes that form a plane orthogonal to the Z axis are taken as an X axis and a Y axis. Here, the surface forming the frame shape of the three-way frame 1 is located on the YZ plane, and the landing door 2 is located parallel to the YZ plane and opens and closes in a direction 22 parallel to the axis. In the present embodiment, it is assumed that the frame shape of the three-way frame 1 is linearly distorted in the YZ plane, and the measurement procedure will be described below.

  FIG. 7 is a front view and a block diagram showing a first measurement state when the shape of the three-way frame 1 is measured using the shape inspection apparatus 100 of FIG. In FIG. 7, the base 5 on which the horizontal wire encoder 6 </ b> A and the vertical wire encoder 6 </ b> B are mounted is installed at the corner where the sill 3 of the landing door 2 and the side surface 101 intersect. Here, the intersection of the threshold 3 of the landing door 2 and the side surface 101 is defined as an origin O (0, 0).

  FIG. 8 is a front view and a block diagram showing a second measurement state when the shape of the three-way frame 1 is measured using the shape inspection apparatus 100 of FIG. In FIG. 8, the horizontal measurement block 7 </ b> A mounted on the tip of the wire 11 </ b> A of the horizontal wire encoder 6 </ b> A is extended in parallel with the sill 3 until it contacts the side surface 102. Here, based on the request signal from the input device 12 of the shape calculation unit 9, the distance L1 from the horizontal wire encoder 6A to the side surface 102 of the three-sided frame 1 is measured and acquired by the horizontal wire encoder 6A, and is obtained with respect to the Y axis. The inclination angle θ1 of the sill 3 is measured and acquired by the horizontal angle measurement device 8A, and these values are stored in the memory 13A of the shape calculation unit 9.

  FIG. 9 is a front view and a block diagram showing a third measurement state when measuring the shape of the three-way frame 1 using the shape inspection apparatus 100 of FIG. In FIG. 9, the horizontal measurement block 7 </ b> A is tilted so as to be parallel to the side surface 102, and when the horizontal measurement block 7 </ b> A becomes parallel, the horizontal measurement block 7 </ b> A is The inclination angle θ2 is measured and acquired by the horizontal angle measuring device 8A, and the value is stored in the memory 13A of the shape calculation unit 9.

  FIG. 10 is a front view and a block diagram showing a fourth measurement state when the shape of the three-way frame 1 is measured using the shape inspection apparatus 100 of FIG. In FIG. 10, the horizontal measurement block 7 </ b> B mounted at the tip of the wire 11 </ b> B of the vertical wire encoder 6 </ b> B is stretched until it hits the upper surface 103. At the time of hitting the upper surface 103, based on the request signal from the input device 12 of the shape calculating unit 9, the distance L2 from the vertical wire encoder to the upper surface 103 of the three-way frame 1 is measured and acquired by the vertical wire encoder 6B, The angle θ3 of the inclination of the side surface 101 with respect to the Z axis is measured and acquired by the vertical angle measuring device 8B, and these values are stored in the memory 13A of the shape calculation unit 9.

  FIG. 11 is a front view and a block diagram showing a fifth measurement state when the shape of the three-way frame 1 is measured using the shape inspection apparatus 100 of FIG. In FIG. 11, when the horizontal measurement block 7B is tilted so as to be parallel to the upper surface 103 and becomes parallel, based on the request signal from the input device 12 of the shape calculating unit 9, the upper surface 103 with respect to the Y axis The inclination angle θ4 is measured and acquired by the vertical angle measurement device 8B, and the value is stored in the memory 13A of the shape calculation unit 9.

  Next, an operation until the shape calculation unit 9 of the shape inspection apparatus 100 according to the present embodiment calculates the shape of the three-sided frame 1 will be described.

  FIG. 12 is an enlarged front view and block diagram showing the origin O and the vicinity of the point A, showing the measurement state when the coordinates of the point A in FIG. 8 on the YZ plane are measured. In FIG. 12, the coordinates (ya, za) of the point A on the YZ plane are calculated according to the following procedure. First, the signal processing unit 14 of the shape calculation unit 9 in FIG. 5 starts from the length J1 of the combined width of the horizontal wire encoder 6A and the vertical wire encoder 6B and the width J2 of the horizontal measurement block 7A. A length JJ (= J1 + J2 + L1) from O (0, 0) to point A (ya, za) is calculated. Next, using the angle θ1 of the inclination of the threshold 3 with respect to the Y axis stored in the memory 13A, the coordinates (ya, za) of the point A are calculated as ya = JJ × cos θ1 and za = JJ × sin θ1.

  FIG. 13 is a front view and a block diagram showing a sixth measurement state when the shape of the three-way frame 1 is measured using the shape inspection apparatus 100 of FIG. In FIG. 13, the coordinates (yd, zd) of the point D on the YZ plane are calculated by the following procedure. First, a circle 200 is drawn with the distance L2 measured by the vertical wire encoder 6B as a radius and the point B (yb, zb) of the vertical wire encoder 6B as a center point. Here, the coordinates (yb, yz) of the point B can be calculated from a height H1 obtained by adding the height of the vertical wire encoder 6B and the height of the base 5. The height H1 is stored in advance in the memory 13A of the shape calculation unit 9.

  In FIG. 13, the signal processing unit 14 of the shape calculation unit 9 determines the coordinates (yb, zb) of the point B from the height H1 stored in the memory 13A and the angle θ1 of the inclination of the sill 3 with respect to the Y axis. Calculated as H1 × sin θ1, zb = H1 × cos θ1. Further, the signal processing unit 14 of the shape calculating unit 9 includes a distance L2 measured by the vertical wire encoder 6B of the vertical wire encoder 6B stored in the memory 13A, an angle θ3 of the inclination of the side surface 101 with respect to the Z axis, Using the previously calculated coordinates of the point B, the coordinates (yc, zc) of the point C at the intersection of the circle 200 and the side surface 101 are calculated. Further, the signal processing unit 14 of the shape calculation unit 9 includes the inclination angle θ3 of the side surface 101 stored in the memory 13A of the shape calculation unit 9, the width H2 of the horizontal measurement block 7B, and the previously calculated point C. The coordinates (yd, zd) of the point D are calculated as yd = yc−H2 × sin θ3 and zd = zc + H2 × cos θ3. According to this configuration, it is possible to more accurately measure a shape in which each side of the three-way frame 1 is linearly distorted. In the present embodiment, each coordinate value is calculated by the method described above. However, the base 5 having the above-described shape, the horizontal wire encoder 6A, the vertical wire encoder 6B, the horizontal measurement block 7A, and the vertical measurement are used. Coordinates can be calculated in the same manner by using a base, a horizontal wire encoder, a vertical wire encoder, a horizontal measurement block, and a vertical measurement block using a shape different from that of the block 7B.

  As described above, since one point passing through each side of the three-sided frame 1 and the inclination angle of each side with respect to the weight direction are acquired, each side is expressed as a linear equation on the orthogonal coordinate system based on the direction of gravity. I can draw.

  Next, an operation for determining the quality of the shape of the three-sided frame 1 by the shape inspection unit 10 based on the result calculated by the shape calculation unit 9 of FIG. 5 will be described.

  FIG. 14 is a front view for explaining parameters for determining pass / fail of the shape of the three-way frame 1 using the shape inspection apparatus 100 of FIG. In FIG. 14, the signal processing unit 14 of the shape calculation unit 9 calculates the value of a predetermined parameter based on the equation of the straight line on each side of the three-way frame 1 calculated as described above. Here, the values of the predetermined parameters are the height, width, and diagonal length of the three-way frame 1, and are calculated from the coordinate values on the orthogonal coordinate YZ plane with respect to the direction of gravity.

  In FIG. 14, for example, the height of the three-way frame 1 is the length of a line extending from the midpoint V of the Y coordinate value on the line forming the upper surface 103 to the sill 3 in the direction of gravity (in the direction parallel to the Z axis). It can be obtained as the length of the line segment connecting the midpoint V and the intersection point W. The width of the three-way frame 1 is the length of a line extending from the midpoint R of the Z coordinate value on the line forming the side surface 101 to the side surface 102 in a direction perpendicular to the direction of gravity (parallel to the Y axis), that is, It can be obtained as the length of the line segment connecting the midpoint R and the intersection S. The value of the predetermined parameter obtained in this way is output to the shape inspection unit 10, and the shape determination unit 15 of the shape inspection unit 10 compares the value with the design value set in advance in the memory 13B of the shape inspection unit 10. When the difference is calculated and the calculated error amount is equal to or greater than a preset threshold value, the shape of the three-way frame 1 is determined as NG, and it is not possible to attach an airtight member to the existing three-way frame 1. Judged to be possible. On the other hand, when the error amount is smaller than a preset threshold value, the shape of the three-sided frame 1 is determined to be OK, and it is determined that the airtight member can be attached with the three-sided frame 1 as it is. can do. Note that the threshold value may be determined for each predetermined parameter, or may be the same value.

  According to the shape inspection apparatus 100 according to the above embodiment, the angle measurement apparatus can measure the gravity direction as a reference and draw the shape of the three-way frame 1 on the coordinate system based on the gravity direction. It becomes possible to measure more accurately the amount of distortion of the three-way frame 1 with respect to the landing door 2 attached on the basis of the direction as compared with the conventional case.

  Further, in the present embodiment, as illustrated in FIGS. 6A to 6C, the description has been made on the assumption that the surface forming the frame shape of the three-sided frame 1 is parallel to the YZ plane. In this case, as shown in FIG. 15, the entire surface forming the frame shape of the three-way frame 1 is inclined around the Y axis. However, even in such a case, the angle Ψ of inclination around the Y axis of the sill 3 of the elevator landing door system 100 is measured, and the shape of the three-sided frame 1 is obtained as a three-dimensional coordinate value using a conventional coordinate transformation method. It is possible to draw.

  Furthermore, in this Embodiment, although the base 5 was installed in the corner | angular part formed in the threshold 3 of the landing door 2, and the side surface 101 of the three-way frame 1, as long as it is on the threshold 3, you may install it anywhere. In this case, if the distance to the side surface 101 is measured in advance by another method, for example, a laser distance meter, the measurement is performed only with the horizontal wire encoder 6A and the vertical wire encoder 6B as in the present embodiment. It becomes possible to do. Moreover, even if the distance to the side surface 101 is not measured in advance by a laser distance meter or the like, two horizontal wire encoders are used, and the two horizontal wire encoders are installed 180 degrees opposite to each other. If the distance between the side surface 101 and the side surface 102 is measured, the shape of the three-sided frame 1 can be measured by the same calculation.

  Although the example of measuring the shape of the three-way frame 1 has been described above, any shape can be measured as long as the frame shape is surrounded by four sides.

Second embodiment.
Although the measurement method when the frame shape of the three-sided frame 1 is linearly distorted using the shape inspection apparatus 100 according to the first embodiment has been described, the side surface 101 and the side surface 102 of the three-sided frame 1 are curved. A measurement method in the case of a distorted shape will be described below.

  16A is a front view showing another example of the positional relationship between the three-way frame 1A and the landing door 2 of FIG. 1, FIG. 16B is a side view of FIG. 16A, and FIG. 16C is the side view of FIG. It is a top view. In FIG. 16A, FIG. 16B, and FIG. 16C, the Z axis is taken in the direction opposite to the gravity direction 400, and the two axes that form a plane orthogonal to the Z axis are taken as the X axis and the Y axis. Here, the surface forming the frame shape of the three-way frame 1A is positioned on the YZ plane, the landing door 2 is positioned parallel to the YZ plane, and the landing door 2 opens and closes in a direction 22 parallel to the Y axis. In the present embodiment, it is assumed that the side surface 101A and the side surface 102A of the three-way frame 1A are curvedly distorted, and the measurement procedure will be described below.

  FIG. 17 is a front view and a block diagram showing a first measurement state when measuring the shape of the three-way frame 1A of FIG. 16A using the shape inspection apparatus 100 of FIG. 5 according to the second embodiment of the present invention. FIG. In FIG. 17, the base 5 on which the horizontal wire encoder 6A and the vertical wire encoder 6B are mounted is installed at a corner where the sill 3 of the landing door 2 and the side surface 101A intersect. Here, the intersection of the threshold 3 and the side surface 101A is defined as an origin O (0, 0).

  18 is a front view and a block diagram showing a second measurement state when measuring the shape of the three-way frame 1A of FIG. 16A using the shape inspection apparatus 100 of FIG. 5 according to the second embodiment of the present invention. FIG. In FIG. 18, the horizontal measurement block 7 </ b> A mounted on the tip of the wire 11 </ b> A of the horizontal wire encoder 6 </ b> A is stretched until it contacts the side face 102 </ b> A while contacting the sill 3. When the horizontal measurement block 7A comes into contact with the side surface 102A, the distance L1 from the horizontal wire encoder 6A to the side surface 102A of the three-way frame 1A is determined based on the request signal from the input device 12 of the shape calculation unit 9 The angle θ1 of the inclination of the sill 3 with respect to the Y axis is measured and acquired by the horizontal angle measuring device 8A, and these values are stored in the memory 13A of the shape calculating unit 9.

  19 is a front view and a block diagram showing a third measurement state when measuring the shape of the three-way frame 1A of FIG. 16A using the shape inspection apparatus 100 of FIG. 5 according to the second embodiment of the present invention. FIG. In FIG. 19, when the horizontal measurement block 7A is tilted so as to be parallel to the side surface 102A and becomes parallel, based on the request signal from the input device 12 of the shape calculation unit 9, the point A on the side surface 102A The angle φ0 in the tangential direction with respect to the side surface 102A of the three-way frame 1A is measured and acquired by the horizontal angle measuring device 8A, and the value is stored in the memory 13A of the shape calculating unit 9.

  FIG. 20 is a front view and a block diagram showing a fourth measurement state when measuring the shape of the three-sided frame 1A of FIG. 16A using the shape inspection apparatus 100 of FIG. 5 according to the second embodiment of the present invention. FIG. In FIG. 20, the horizontal measurement block 7B mounted on the tip of the wire 11B of the vertical wire encoder 6B is measured at several points from the sill 3 to the upper surface 103 along the side surface 101A. In the present embodiment, three points P1, P2, and P3 are measured as shown in FIG. At this time, the distances L21, L22, and L23 are measured and acquired by the vertical wire encoder 6B based on the request signal from the input device 12 of the shape calculation unit 9 at each of the points P1 to P3, and the tangent to the side surface 101A The direction inclination angles φ1, φ2, and φ3 are measured and acquired by the vertical angle measuring device 8B, and these values are stored in the memory 13A of the shape calculation unit 9. Here, the distance L21 is the distance from the vertical wire encoder 6B to the point P1, the distance L22 is the distance from the vertical wire encoder 6B to the point P2, and the distance L23 is the vertical wire encoder 6B. To the point P3. Further, the angle φ1 is an angle of the tangential inclination with respect to the side surface 101A at the point P1, the angle φ2 is an angle of the tangential direction inclination with respect to the side surface 101A at the point P2, and the angle φ3 is the side surface at the point P3. The angle of inclination in the tangential direction with respect to 101A.

  FIG. 21 is a front view and block diagram showing a fifth measurement state when measuring the shape of the three-way frame 1A of FIG. 16A using the shape inspection apparatus 100 of FIG. 5 according to the second embodiment of the present invention. FIG. In FIG. 21, when the horizontal measurement block 7B is tilted so as to be parallel to the upper surface 103 and becomes parallel, based on a request signal from the input device 12 of the shape calculation unit 9, the upper surface 103 with respect to the Y axis The inclination angle θ4 is measured and acquired by the vertical angle measurement device 8B, and the value is stored in the memory 13A of the shape calculation unit 9.

  FIG. 22 is a front view and a block diagram showing a sixth measurement state when measuring the shape of the three-way frame 1A of FIG. 16A using the shape inspection apparatus 100 of FIG. 5 according to the second embodiment of the present invention. FIG. In FIG. 22, the base of FIG. 21 on which the horizontal wire encoder 6A and the vertical wire encoder 6B are mounted is rotated 180 degrees around the Z axis, and the horizontal wire encoder 6A and the vertical wire encoder 6B are mounted. The base 5 is installed at the corner where the threshold 3 of the landing door 2 and the side surface 102A intersect. Further, the horizontal measurement block 7A mounted on the tip of the wire 11A of the horizontal wire encoder 6A is extended to abut on the side surface 101A while being in contact with the sill 3 in parallel with the sill 3, and then the horizontal measurement block 7A is connected to the side surface 101A. At the time of being tilted so as to be parallel, and based on the request signal from the input device 12 of the shape calculation unit 9, the inclination of the tangential direction with respect to the side surface 101A of the three-way frame 1A at the origin O of the side surface 101A The angle φ7 is measured and acquired by the horizontal angle measurement device 8A, and the value is stored in the memory 13A of the shape calculation unit 9.

  23 is a front view and a block diagram showing a seventh measurement state when measuring the shape of the three-way frame 1A using the shape inspection apparatus 100 of FIG. 5 according to the second embodiment of the present invention. . In FIG. 23, the horizontal measurement block 7B mounted on the tip of the wire 11B of the vertical wire encoder 6B is measured several times from the sill 3 to the upper surface 103 along the side surface 102A. In the present embodiment, three points P4, P5 and P6 are measured as shown in FIG. That is, at each of the points P4 to P6, the distances L24 to L26 are measured and acquired by the vertical wire encoder 6B based on the request signal from the input device 12 of the shape calculation unit 9, and the tangential inclination of the side surface 102A is obtained. Are measured and acquired by the vertical angle measuring device 8B, and these values are stored in the memory 13A of the shape calculation unit 9. Here, the distance L24 is the distance from the vertical wire encoder 6B to the point P4, the distance L25 is the distance from the vertical wire encoder 6B to the point P5, and the distance L26 is the vertical wire encoder 6B. To the point P6. Further, the angle φ4 is an angle of the tangential inclination with respect to the side surface 102A of the three-way frame 1A at the point P4, and the angle φ5 is an angle of the tangential inclination with respect to the side surface 102A of the three-way frame 1A at the point P5, The angle φ6 is an angle of inclination in the tangential direction with respect to the side surface 102A of the three-way frame 1A at the point P6.

  Next, an operation until the shape calculation unit 9 of the shape inspection apparatus 100 according to the present embodiment calculates the shape of the three-sided frame 1 will be described. Since the method for calculating the linear equation on the YZ plane for the sill 3 and the upper surface 103 has been described in the first embodiment, the method for plotting the curvedly distorted shape of the side surface 101A on the YZ plane. This will be described below.

  FIG. 24 is an enlarged front view and block diagram showing the origin O and the vicinity of the point P1, showing the measurement state when the coordinates of the point P1 in FIG. 20 on the YZ plane are measured. In FIG. 24, in order to calculate the shape of the side surface 101A, the coordinates of the point P1 on the YZ plane are first calculated. Here, the coordinates (yp1, zp1) of the point P1 can be calculated as the intersection of the circle 210 having the center point B (yb, zb) and the radius L21, and the straight line with the angle φ10 passing through the origin O and the point P1. . On the other hand, the curvilinear distortion of the side surface 101A and the side surface 102A of the three-way frame 1 does not have a fine periodic undulation, and the amount of distortion is small. For example, the curve between the origin O and the point P1 on the side surface 101A is It is possible to approximate a curve of a part of a circle. Therefore, since the lengths of tangent lines drawn from any point outside the circle to any two points on the circle are the same, if the intersection of the tangent at the point P1 and the tangent at the origin O is the point Q, the line segment QP1 The length and the length of the line segment QO are the same, and ∠QP1O = ∠QOP1. Next, paying attention to the angle ψ10 in FIG. 24, the angle ψ10 = 2 (φ10−φ7) = φ1−φ7, so the angle φ10 = (φ1 + φ7) / 2.

  Further, the coordinates on the YZ plane of the point P2 and the point P3 in FIG. 20 can be similarly calculated. Here, if the points whose coordinates are to be measured are P1, P2, P3... Pn in order from the origin O (0, 0), where n is an integer of 2 or more, the vertical wire encoder 6B at the point Pn. Assuming that the distance between each point Pn on the side surface of the three-way frame 1A and the vertical wire encoder 6B measured by the distance L2n, the angle of the three-way frame 1A measured by the vertical angle measuring device 8B at the point Pn is assumed. Assuming that the angle of inclination in the tangential direction with respect to the side surface 101A is an angle φn, the coordinates of the point Pn on the YZ plane can be calculated from the distance L2n and the angles φn and φ (n−1). That is, the tangential inclination angle of the point Pn can be calculated from the tangential inclination angle of the point P (n−1). According to this configuration, even if the side surface 101A of the three-way frame 1A has a curved shape, measurement can be performed more accurately. Note that the curved shape of the side surface 102A can be calculated in the same manner as the side surface 101A.

  As described above, the shape of the curved side surface of the three-way frame 1A can also be drawn as an equation of a plane curve on an orthogonal coordinate system based on the direction of gravity. As described in the first embodiment, the shape of the upper surface 103 of the three-way frame 1A and the sill 3 of the landing door 2 can be drawn as a linear equation on an orthogonal coordinate system based on the direction of gravity.

  Further, the operation for determining the quality of the shape of the three-sided frame 1A by the shape inspection unit 10 based on the result calculated by the shape calculation unit 9 of FIG. 5 is the same as that of the first embodiment. That is, the signal processing unit 14 of the shape calculation unit 9 calculates a predetermined parameter value based on a straight line or plane curve equation of each side of the three-way frame 1A calculated as described above. Here, the parameter value includes, for example, the height, width, length of the diagonal line of the three-sided frame 1A, the angle of inclination of each of the two side surfaces 101A, 102A forming the three-sided frame 1A with respect to the Z axis in the direction opposite to the gravitational direction. , The inclination angle of the upper surface 103 forming the three-way frame 1A with respect to the Y axis, the inclination angle of the threshold 3 with respect to the Y axis, and the like, which are calculated from the coordinate values on the orthogonal coordinate YZ plane based on the direction of gravity. . The value of the predetermined parameter obtained in this way is output to the shape inspection unit 10, and the shape determination unit 15 of the shape inspection unit 10 compares the value with the design value set in advance in the memory 13B of the shape inspection unit 10. When the difference is calculated and the calculated error amount is equal to or greater than a preset threshold value, the shape of the three-sided frame 1A is determined as NG, and it is not possible to attach an airtight member to the existing three-sided frame 1A. Judged to be possible. On the other hand, when the error amount is smaller than a preset threshold value, the shape of the three-sided frame 1A is determined to be OK, and it is possible to attach the airtight member while keeping the existing three-sided frame 1A as it is. It can be judged. Note that the above-described threshold values may be set for each predetermined parameter, or all may be the same value.

  According to the shape inspection apparatus 100 according to the above-described embodiment, even when the side surface 101A has a curved shape, the shape of the three-sided frame 1A can be drawn on the coordinate system based on the direction of gravity. Therefore, the shape of the three-way frame 1A with respect to the landing door 2 can be measured more accurately than in the past.

  Further, according to the shape inspection apparatus 100 according to the above embodiment, the coordinate value of the point Pn (n is an integer of 2 or more) of the side surfaces 101A and 102A of the three-sided frame 1A is changed to the coordinate value of the point P (n−1). Therefore, even when the side surfaces 101A and 102A of the three-sided frame 1A are curvedly distorted, the shape of the three-sided frame 1A can be accurately measured.

  In this embodiment, the case where three points are measured on the side surface 101A and the side surface 102A has been described. However, the number of points to be measured may be any number as long as it is two or more. However, considering the measurement time and measurement accuracy, about 3 to 5 points are desirable. Furthermore, although the example which measures the shape of the three-way frame 1 was demonstrated, what kind of thing can be measured if it is the frame shape enclosed by four sides.

Third embodiment.
The shape inspection apparatus 100 according to the first and second embodiments performs measurement using a wire encoder and an angle measurement apparatus in the vertical direction and the horizontal direction, respectively. On the other hand, the shape inspection apparatus 100A according to the third embodiment of the present invention is characterized by measuring the shape of the three-way frame 1 using only a horizontal wire encoder and an angle measurement device.

  FIG. 25 is a block diagram showing a shape inspection apparatus 100A and its peripheral components according to the third embodiment of the present invention. The shape inspection apparatus 100A in FIG. 25 deletes the vertical wire encoder 6B, the wire 11B, the vertical measurement block 7B, and the vertical angle measurement apparatus 8B as compared with the shape inspection apparatus 100 in FIG. Instead of the above, a shape calculating unit 9A is provided, a measurement direction changing unit 16 is further provided on the base 5, and a horizontal wire encoder 6A is fixed on the measurement direction changing unit 16. Further, the shape calculation unit 9A includes an input device 12A instead of the input device 12 as compared with the shape calculation unit 9 of FIG. According to this configuration, the shape inspection apparatus 100A can be further downsized.

  In FIG. 25, the input device 12A generates request signals for acquiring output signals from the horizontal wire encoder 6A and the horizontal angle measuring device 8A, and sends the request signals to the horizontal wire encoder 6A and horizontal signals. This is transmitted to the angle measuring device 8A and the measuring direction changing means 16.

  In FIG. 25, the measurement direction changing means 16 is a means for changing the wire extending direction when the wire 11A is extended from the horizontal wire encoder 6A to the three-way frame 1, and a rotating stage or the like is used, for example. . For example, the measurement direction changing unit 16 rotates 90 degrees around the X axis on the XZ plane based on a request signal from the input device 12A, and the angle of the inclination of the side surface 101 of the three-sided frame 1 with respect to the Z-axis, the three-sided frame 1 The angle of inclination of the upper surface 103 with respect to the Y axis and the distance from the horizontal wire encoder 6A to the upper surface 103 of the three-way frame 1 are measured.

  Next, a procedure for measuring the shape of the three-way frame 1 using the shape inspection apparatus 100A described above will be described.

  FIG. 26 is a front view and a block diagram showing a first measurement state when the shape of the three-way frame 1 of FIG. 6A is measured using the shape inspection apparatus 100A of FIG. In FIG. 26, the measurement direction changing means 16 is adjusted so that the line 17 on the bottom surface of the horizontal wire encoder 6A and the base 5 are parallel, and the angle at this time is set to 0 degrees and stored in the memory 13A of the shape calculation unit 9A. Is done. Next, the base 5 on which the horizontal wire encoder 6A and the measurement direction changing means 16 are mounted is installed at a corner where the sill 3 of the landing door 2 and the side surface 101 intersect. Next, the measurement block 7A mounted on the tip of the wire 11A of the horizontal wire encoder 6A is extended in parallel with the sill 3 until it comes into contact with the side face 102 while contacting the sill 3. At that time, based on a request signal from the input device 12A of the shape calculation unit 9A, the distance from the horizontal wire encoder 6A to the side surface 102 of the three-way frame 1 measured by the horizontal wire encoder 6A, and the horizontal The angle θT1 of the inclination of the threshold 3 with respect to the Y axis measured by the angle measurement device 8A is acquired, and these values are stored in the memory 13A of the shape calculation unit 9A. Further, the horizontal measurement block 7A is tilted so as to be parallel to the side surface 102, and when the horizontal measurement block 7A is parallel to the side surface 102, the side surface with respect to the Z-axis is based on the request signal from the input device 12A of the shape calculation unit 9A. The angle of inclination 102 is measured and acquired by the horizontal angle measuring device 8A, and the value is stored in the memory 13A of the shape calculating unit 9.

  FIG. 27 is a front view and a block diagram showing a second measurement state when the shape of the three-way frame 1 in FIG. 6A is measured using the shape inspection apparatus 100A in FIG. In FIG. 27, the angle of the measurement direction changing means 16 is rotated by 90 degrees in the Z-axis direction based on a request signal from the input device 12A of the shape calculating unit 9 and mounted on the tip of the wire 11A of the horizontal wire encoder 6A. The horizontal measurement block 7A is stretched until it hits the upper surface 103. At this time, the angle set by the measurement direction changing means 16 is stored in the memory 13A. Here, the distance from the horizontal wire encoder 6A to the upper surface 103 of the three-way frame 1 and the horizontal angle measured by the horizontal wire encoder 6A based on the request signal from the input device 12A of the shape calculating unit 9A. The inclination angle θT3 of the side surface 101 with respect to the Z axis measured by the measuring device 8A is acquired, and these values are stored in the memory 13A of the shape calculation unit 9A. Further, the horizontal measurement block 7A is tilted so as to be parallel to the upper surface 103, and when it becomes parallel, the angle of the tilt of the upper surface 103 with respect to the Y axis based on the request signal from the input device 12A of the shape calculating unit 9A. Is measured and acquired by the horizontal angle measuring device 8A, and the value is stored in the memory 13A of the shape calculating unit 9.

  Next, the operation until the shape calculation unit 9A of the shape inspection apparatus 100A according to the present embodiment calculates the shape of the three-sided frame 1 will be described.

  26 and 27, in order to obtain the shape of the three-sided frame 1, as in the first embodiment described above, the inclination angle of each side of the three-sided frame 1 and the coordinates of the points A and D are determined. What is necessary is just to calculate. Here, in order to calculate the coordinates of the point A and the point D, the coordinates of the point T1 and the point T2 may be calculated, and the methods of the first embodiment and the second embodiment described above are used. Can be calculated. For example, the coordinates of the point T1 can be calculated as an intersection of a circle with the radius LT1 and the center BT1 and a straight line passing through the origin O and the inclination θT1, and the coordinates of the point T2 are the circle with the radius LT2 and the center BT2. The coordinates of the center BT1 and the center BT2 are the horizontal wire encoder 6A, the dimensions of the measuring direction changing means 16, and the rotation angle of the measuring direction changing means 16. Can be calculated uniquely from

  The operation of the shape inspection unit 10 of the shape inspection apparatus 100A configured as described above is the same as that of the shape inspection unit 10 of the shape inspection apparatus 100 according to the first embodiment, and a description thereof will be omitted.

  According to the present embodiment, it is possible to measure the shape of the three-way frame more accurately than in the conventional case with a simpler configuration as compared with the configuration of the first embodiment.

  In the present embodiment, an example in which a rotary stage is used as the measurement direction changing means 16 has been described. However, the horizontal wire encoder 6A itself is not rotated, and only the direction of the wire 11A is changed using a pulley. May be. Further, in the present embodiment, it is assumed that the side surface 101 and the side surface 102 of the three-way frame 1 have a linearly distorted shape, but the curved shape is distorted similarly to the second embodiment described above. Cases can also be measured. Even in this case, the same effect as the present embodiment can be obtained.

  1,1A Three-way frame, 101, 102, 101A, 102A Side surface, 103 top surface, 3 sills, 2 landing doors, 3 sills, 4 gaps, 100, 100A shape inspection device, 5 base, 6A horizontal wire encoder, 6B for vertical use Wire encoder, 7A Horizontal measurement block 7, 7B Vertical measurement block, 8A Horizontal angle measurement device, 8B Vertical angle measurement device, 9, 9A Shape calculation unit, 10 Shape inspection unit, 11A, 11B Wire, 12, 12A Input device, 13A, 13B memory, 14 processing unit, 15 determination unit.

Claims (14)

Elevator landing door comprising a three-sided frame covering the opening provided at the landing on each floor of the elevator, and a landing door provided at the opening that can be opened and closed along the sill in conjunction with the elevator car side door A shape inspection device for inspecting the shape of the three-way frame of the system,
In a coordinate system having an X axis, a Y axis, and a Z axis orthogonal to each other, an angle of inclination of the side surface of the three-sided frame with respect to the Z axis opposite to the direction of gravity, and an angle of inclination of the upper surface of the three-sided frame with respect to the Y axis Angle measuring means for measuring the angle of inclination of the sill with respect to the Y axis and outputting a signal indicating the measured angle,
Distance measuring means for measuring the distance from the distance measuring means to the side surface of the three-way frame, the distance from the distance measuring means to the upper surface of the three-way frame, and outputting a signal indicating the measured distance, respectively;
Based on the signal indicating the measured angle and the signal indicating the measured distance, a predetermined parameter indicating the shape of the three-way frame using coordinate values on the YZ plane formed by the Y axis and the Z axis A shape inspection apparatus comprising: a shape calculation unit that calculates the value of.   The shape calculation unit includes an input device that transmits a signal indicating the measured angle and a request signal for outputting the signal indicating the measured distance from the angle measuring unit and the distance measuring unit, respectively. The shape inspection apparatus according to claim 1.   3. The shape inspection apparatus according to claim 1, wherein the distance measuring means is a wire encoder. The wire encoder is provided with a measuring block member at the tip of the wire,
The shape inspection apparatus according to claim 3, wherein the distance is measured by placing the measurement block member on each surface of the three-way frame. The wire encoder includes a horizontal wire encoder and a vertical wire encoder,
The shape inspection apparatus according to claim 3 or 4, wherein a distance in two directions is measured by the horizontal wire encoder and the vertical wire encoder. The angle measuring means includes a horizontal angle measuring means and a vertical angle measuring means,
The horizontal wire encoder and the vertical wire encoder are installed at a corner where the landing door sill and the side of the three-way frame intersect,
The horizontal angle measuring means is disposed on a horizontal measurement block member at the tip of a wire of the horizontal wire encoder,
The vertical angle measuring means is disposed on the vertical measurement block member at the tip of the wire of the vertical wire encoder,
The horizontal wire encoder measures the distance from the horizontal wire encoder to the side surface of the three-way frame,
The vertical wire encoder measures the distance from the vertical wire encoder to the upper surface of the three-way frame,
The vertical angle measuring means measures the angle of inclination of the upper surface of the three-sided frame with respect to the Y axis and the angle of inclination of the side surface of the three-sided frame with respect to the Z axis by placing the vertical measuring block member on the upper surface of the three-sided frame. And
The horizontal angle measuring means measures the angle of inclination of the side surface of the three-way frame with respect to the Z axis and the angle of inclination of the threshold of the landing door with respect to the Y axis by placing the horizontal measurement block member on the side surface of the three-side frame. The shape inspection apparatus according to claim 5, wherein: The angle measuring means includes a vertical angle measuring means,
The horizontal wire encoder and the vertical wire encoder are installed at a corner where the landing door sill and the side of the three-way frame intersect,
The vertical angle measuring means is disposed on the vertical measurement block member at the tip of the wire of the vertical wire encoder,
The horizontal wire encoder measures the distance from the horizontal wire encoder to the side surface of the three-way frame,
The vertical wire encoder measures a distance between a point Pn (n is an integer of 2 or more) on the side surface of the three-way frame and the vertical wire encoder,
6. The shape inspection apparatus according to claim 5, wherein the vertical angle measuring means measures an angle of inclination in a tangential direction with respect to the side surface of the three-way frame at each point Pn on the side surface of the three-way frame.   The angle of the tangential inclination with respect to the side surface of the three-way frame at the point Pn on the side surface of the three-way frame is the tangential inclination angle with respect to the side surface of the three-way frame at the point P (n-1) on the side surface of the three-way frame. The shape inspection apparatus according to claim 7, wherein the shape inspection apparatus can be calculated from an angle. The horizontal wire encoder and the vertical wire encoder are installed at corners where the side of the landing door and the side facing the side of the three-way frame intersect,
The vertical angle measuring means measures an angle of inclination in a tangential direction with respect to the side surface facing the side surface of the three-way frame at each point Pm (m is an integer of 2 or more) on the side surface facing the side surface of the three-way frame. The shape inspection apparatus according to claim 7 or 8, wherein   5. The shape inspection apparatus according to claim 3, further comprising a measurement direction changing unit that changes a direction in which the wire of the wire encoder is stretched.   The shape inspection apparatus according to claim 10, wherein a distance in two directions is measured using the measurement direction changing means.   The shape inspection unit that calculates an error amount between the calculated value of the predetermined parameter and a preset design value is further provided. Shape inspection device.   13. The shape inspection apparatus according to claim 12, wherein the shape inspection unit determines the quality of the shape of the three-way frame by comparing the calculated error amount with a predetermined threshold value.   The predetermined parameters are the height, width, diagonal length of the three-way frame, the angle of inclination of each of the two side surfaces forming the three-way frame with respect to the Z axis, and the upper surface forming the three-way frame with respect to the Y axis. The shape inspection apparatus according to claim 1, wherein the shape inspection apparatus is an inclination angle of the sill and an inclination angle of the sill with respect to the Y axis.

Images