JPH0789055B2 - Measuring equipment for elevator installation - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an elevator for measuring a distance between an installation reference line in a hoistway in an elevator installation work and an elevator installation member installed in the hoistway. The present invention relates to a measuring device for installation.

[Prior Art] Generally, the maximum size of elevator hoistway is ± 20 to
It is said that there is an error of about 30 mm. On the other hand, constituent members such as the guide rails and thresholds of the elevator are required to be installed within an error range of several mm from the reference position. Therefore, when installing the elevator, hang down several piano wires with weights from the vicinity of the ceiling of the hoistway, and use this piano wire as a reference line for installation to measure the distance to the components of the elevator The accuracy is secured.

FIG. 19 is a structural explanatory view of a conventional device using the above principle.

In the nineteenth, (1) is the hoistway, (2) is the road wall,
(3) is a piano wire hanging in the space of the hoistway (1). (4) is a threshold as an elevator installation member,
(5) is a fixing bolt, (6) is an L-shaped bracket, and (7) is an anchor bolt. The sill (4) is fixed on the bracket (5) by bolts (5) so that the mounting position can be adjusted, and is installed in the hoistway (1).
(8) is a steel scale.

In the conventional device having such a structure, the tip of the scale (8) is applied to the side surface of the threshold (4) and then brought close to the piano wire (3). And the scale (8) corresponding to the piano wire (3)
After reading the upper scale and adjusting the mounting position to a predetermined position, the sill (4) is fixed to the bracket (6) with a bolt (5).

[Problems to be Solved by the Invention] As described above, in the conventional installation measuring device, the scale of the scale (8) corresponding to the suspended piano wire (3) is visually read and measured. Therefore, not only the measurement operation is troublesome, but also parallax occurs and an error corresponding to the thickness (φ0.3 to φ0.5 mm) occurs at the left and right reading positions of the piano wire (3). Especially, in a dark hoistway, it becomes unclear whether or not the reference piano wire (3) and the scale (8) match. For this reason, there is a problem that the measurement accuracy becomes low and the guide rail and the like cannot be installed within the above-mentioned error range.

The present invention has been made in order to solve the problems of such a conventional device, and with high accuracy without being affected by parallax, the thickness of the piano wire, etc. The present invention realizes an elevator installation measuring device capable of measuring a distance from an installation member.

[Means for Solving the Problem] A sliding portion provided with a reading surface of a scale that slides along a horizontally arranged gauge, a sensor portion having a sensor facing a piano wire, and this sensor. A measuring device for elevator installation comprising a slide block provided with a detector for notifying a detection state of a piano wire by light or sound based on a detection operation of a sensor attached to the section.

[Operation] After making the gauge horizontal and applying one end to the mounting member, slide the slide block along the gauge. When the slide black slides and the piano wire reaches the sensor portion, the light projected from the sensor is reflected, absorbed or blocked by the piano wire, and the piano wire is detected by the change of the light.
When the piano wire is detected, the detector operates to generate sound or light to notify the detection of the piano wire. Then, after the movement of the slide block is stopped, the scale of the gauge is read by the reading unit and the distance between the installation member and the piano wire is measured.

[Embodiment of the Invention] FIGS. 1 and 2 are configuration explanatory views of an embodiment of the present invention. FIG. 1 is a perspective explanatory view and FIG. 2 is a plan view.

1 and 2, (1) is a piano wire, (2)
Is a gauge with engraved scales. A weight (not shown) is attached to the lower end of the piano wire (1) and is hung from the ceiling of the hoistway. (3) is a slide block. The slide block (3) includes a sliding part (4), a detector (5), and a sensor part (6) provided with a U-shaped gap (G) for mounting a sensor. A gauge (2) is engaged with the sliding portion (4) so that the slide block (3) can slide along the gauge (2). (7) is a reading surface of a scale provided on the sliding portion (4), and (8) is an annunciator that emits light and sound. The detector (5) is composed of a reflective photoelectric switch, and activates the alarm (8) based on the detection signal. (9) is a display device such as a light emitting diode in the alarm device (8), and (10) is a sound device such as a speaker for notifying the detection state by sound. (11) is a reflection type fiber sensor in which the light emitting / receiving surface is attached to one attachment portion (6a) of the sensor portion (6), and (12) is the other attachment portion (6
It is a through hole provided in b) through which the light projected from the fiber sensor (11) passes.

Further, (14) is a sill as a mounting member, and (M) is a measuring device composed of elements such as the gauge (2) and slide block (3) described above. The sill (14) is temporarily fixed on a mounting member such as a bracket as in the case of FIG. And after being positioned by the measuring device (M),
It is designed to be fixed to the wall of the hoistway.

FIGS. 3 and 4 show an example of mounting the fiber sensor (11) on the sensor section (6).

(6c) in Fig. 3 and 4 shows the mounting holes provided in the mounting part (6a).
(6d) is a reflection preventing recess formed inside, and (13) is a fixing screw. In Figure 3, the fiber sensor (11)
It is inserted and fixed in the mounting hole (6c) of the sensor section (6). In contrast, in FIG. 4, the fixing screw (13) is used to adjust the distance (a) from the fiber sensor (11) to the piano wire (1).

Generally, the detection range of the light reflection type fiber sensor (11) used for this kind of detection remarkably changes depending on the distance (a) as shown in FIG. Therefore, by loosening the fixing screw (13) as shown in FIG. 4 and setting the distance (a) to a predetermined value, it is possible to detect in a narrow detection range as shown in (b). The range can be changed. Incidentally, (0)-(0) in the figure is the center line of the fiber sensor (11).

FIG. 6 is an electrical connection diagram showing the detection circuit of the measuring device (M).

In FIG. 6, (+) and (-) are bus lines on the positive and negative sides of the DC power source, (15) is a resistor connected to the cathode side of the light emitting diode (9), and (16) and (17) are The driver inverter IC, (Va), is the output signal of the detector (5) consisting of a photoelectric switch.

In the embodiment of the present invention having the above-described structure, as shown in FIG. 2, the gauge (2) is held horizontally with its tip contacting the side surface of the sill (14). In this case, the measuring device (M) is arranged so that the piano wire (1) is located on an extension line of the gap (G) in the sliding direction of the sensor portion (6). On the other hand, the fiber sensor (11) is the detector (5)
The light sent from the light source is projected from the light emitting and receiving surface, and the projected light passes through the through hole (12).

Here, when the slide block (3) is slid forward along the gauge (2) (upward in FIG. 2), the sensor section (6) approaches the threshold (14) and the piano wire (1) is moved. Penetrate into the gap (G). When the piano wire (1) enters the gap (G) and the fiber sensor (11) coincides with the piano wire (1), the projection light of the fiber sensor (11) is reflected by the piano wire (1) and the detector. The output signal (Va) of (5) changes from "L" level to "H" level. The output of the inverter (16) shifts to "L" due to the change of the output signal (Va), the display (9) lights up, and the detection of the piano wire (1) is displayed. At the same time, the output end of the inverter (17) side is also "L"
The sound level (10) changes to the level, and the sound device (10) notifies the detection of the piano wire (1) by sound. Then, the movement of the slide block (3) is stopped, and the gauge (2) is placed on the reading surface (7).
Read the upper scale. Utilizing this read scale,
The distance (A) of the threshold (14) from the piano wire (1) can be measured.

If the distance (A) does not match the specified value as a result of the measurement,
After finely moving the threshold (14), the above measurement operation is performed again. When the distance (A) reaches a predetermined value, a fixing bolt as shown in FIG. 19 is tightened to fix the sill (14) to the road wall of the hoistway in front of the landing.

FIG. 7 and FIG. 8 are configuration explanatory views of another embodiment of the present invention. In this embodiment, a transmission type fiber sensor which is divided into a light emitting side and a light receiving side is used as the sensor. A fiber sensor (21) for projecting light is provided on a mounting portion (6a) of the sensor section (6), and a fiber sensor (22) for receiving light is mounted on the other (6b). In this embodiment, the piano wire (1) is detected and the distance is detected based on the interruption of the light or the decrease in the amount of light received by the fiber sensor (22) for light reception due to the intervention of the gap (G) by the piano wire (1). (A) is measured.

FIG. 9 is a block diagram of the modified example of FIGS. 7 and 8, in which the reading surface (7) is provided with center lines (0)-(0) of the fiber sensors (21) and (22).
In addition to the above, the power supply unit and the alarm (8) are separated from the slide block (3). Since the reading surface (7) coincides with the center line (0)-(0),
For the gauge (2), a steel scale generally used for machining can be used, and the scale scale reading directly indicates the distance (A). Further, since the power source unit and the alarm unit (8) are separated from the sensor unit (6) of the slide block (3) and the like, the weight of the movable unit is reduced and the slide block (3) is reduced.
There is a feature that the sliding operation of is easy.

Further, FIGS. 10 and 11 are configuration explanatory views of a third embodiment of the present invention, FIG. 10 is a perspective view and FIG. 11 is a plan view thereof.

Here, with a structure similar to that of Figs. 7 and 8, another set of throws,
Fiber sensors (23) and (24) for receiving light are provided. Fiber sensors (21), (22) and (23), (24)
As shown in FIG. 12, is attached to the sensor part (6) with a displacement of approximately a radius in the sliding direction of the slide block (3). Especially, two sets of fiber sensors (21), (22)
And (23) and (24) are mounted vertically apart from each other so as not to interfere with each other. In addition, the indicator (8) has three indicators (26), (27), (28) consisting of light emitting diodes.
Is provided. The acoustic device (10) is also made to generate three kinds of sounds at different frequencies corresponding to these indicators (26) to (28), as will be described below. Also in this embodiment, the reading surface (7) is provided so as to coincide with the line (0)-(0).

FIG. 13 is a connection diagram showing the detection circuit of the third embodiment.

In FIG. 13, (5a) and (5b) are detectors (Va) and (Vb) which are connected to two sets of fiber sensors ((21), (22) and (23), (24), and which are photoelectric switches. ) Is its output signal. (31), (32) and (33) are NAND gate ICs.
(34), (35) and (36) are resistors, (37), (38) and (39) are inverter ICs, (41), (42) and (43) are signals (Vc), ( Oscillators that oscillate Vd) and (Ve), (45) is an analog switch, (46) is an amplifier (1) that amplifies the output signal (Vf) of the analog switch (45).
It is an amplifier that outputs to (0).

Next, the operation of the third embodiment having such a configuration will be described.

Holding the gauge (2) horizontally and bringing it into contact with the threshold (14) and then sliding the slide block (3) along the gauge (2) is no different from the above-described measurement operation. When the sensor section (6) is away from the piano wire (1), the output signals (Va) and (Vb) of the detectors (5a) and (5b) are at "L" level, and the NAND gate IC The outputs of (31) to (33) hold the "H" level and the three indicators (26) to (2
8) is off. Further, since the analog switch (45) does not select any of the output signals (Vc) to (Ve), no sound is output from the acoustic device (10).

When the slide block (3) advances and the piano wire (1) enters between the pair of fiber sensors (21) and (22) for projecting and receiving light on the tip side in the gap (G), the piano wire (1) ) Is detected and the output signal (Va) of the detector (5a) changes from “L” to “H” level. As a result, the output end of the NAND gate (31) goes to "L" level, and the display (26) lights up. Illumination of the display (26) indicates a forward movement in the direction of the arrow indicated by "←". In addition, the output of the NAND gate IC (31) changes to "L" level, so the inverter (37) turns to "H" level.
Move to level and analog switch (45) is oscillator (41)
Select the output (Vc) of. As a result, the output signal (Vf) of the analog switch (45) is amplified by the amplifier (36),
The sound device (10) generates a sound corresponding to the oscillation frequency of the oscillator (41).

When the slide block (3) is moved forward in accordance with the instruction of the moving operation of the display (26), the piano wire (1) and two sets of throws,
The relative positional relationship between the light receiving fiber sensors (21) to (24) is as shown in FIG. In this positional relationship, the output signal (Vb) of the detector (5b) also changes to "H", and the output of the NAND gate (32) changes from "H" to "L". And
The output of the NAND gate (31) changes to "H" and the display (26)
Is turned off, and a current flows through the light emitting diode of the display (27) to make it emit light, and the detection operation of the piano wire (1) is "O".
The output of the inverter (38) changes from "L" to "H" due to changes in the outputs of the NAND gates (31) and (32). The output signal (Vf) is switched from (Vc) to (Vd), which in turn causes the output signal (Vd) of the oscillator (42) to output an acoustic signal that signals "OK" from the acoustic device (10). It
Visual and auditory "OK" by the display (26) and sound device (10)
The sliding of the slide block (3) is stopped based on the sign. At this time, by reading the scale of the gauge (2) on the reading surface (7), the distance (A) between the threshold (14) and the piano wire (1) can be known.

Here, when the slide block (3) is further advanced, the piano wire (1) is connected to the pair of fiber sensors (21) on the tip side,
It goes out of the detection range of (22), and the output signal (Va) of the detector (5a) changes from "H" to "L". This change of the output signal (Va) to "L" level switches the NAND gates (32) and (33) to "H" and "L". For this reason,
The indicator (27) indicating “OK” disappears, and the indicator (28) side indicating the backward arrow “→” lights up. At the same time, the levels of the inverter ICs (38) and (39) both change, and the selection of the analog switch (45) is switched from (Vd) to (ve). By switching from (Vd) to (ve), the output signal (Vf) of the analog switch (45) corresponding to the output signal (Ve) of the oscillator (43) is amplified by the amplifier (46),
The sound device (10) now reports "reverse movement".

FIGS. 14 and 15 show configuration explanatory diagrams of the fourth embodiment of the present invention, which is similar to the third embodiment.

Also in the fourth embodiment, the sensors (2
(1) to (24) are provided in the sensor section (6), and the indicator (8) also notifies the three modes by light and sound.
6) to (28) and an acoustic device (10) are arranged. However, in this embodiment, the structure of the sensor section (6) and the detection circuit of the detector (5) are partially different from those in the third embodiment.

In FIGS. 13 and 14, (61) and (63) are light-emitters to which light-transmitting sensors (21) and (23) are attached, and (6
2) and (64) are light receivers to which light receiving sensors (22) and (24) are attached. Sensors (21), (2
2), (23), and (24) are detectors (5a) and (5a) that output a parallel light beam from a projector and output a signal proportional to the light width of the object to be detected on the light receiving surface of the light receiver that receives the light beam. 5b) is connected. (65) and (66) are fixing metal fittings for the light emitting and receiving devices (61) and (62). Further, slits (71), (7) as shown in FIG. 16 are provided on the light emitting and light receiving surfaces of the light emitting and receiving devices (61), (62) and (63), (64).
2) and (73), (74) (however, (72) and (74) are not shown) are provided. The two sets of slits (71), (72) and (73), (74) are set so that the rear end and the front end overlap as shown. Then, the parallel light beams projected from the slits (71) and (73) form a gap (G).
Light is received by the slits (72) and (74) via. (75) is a fixing screw. In this case, the 17th
As shown in the figure, a pair of emitter and receiver (61), (62) above
May be configured to be slidable with the dovetail groove (76) with respect to the lower set of the emitter and the receiver (63), (64). With the configuration shown in FIG. 17, the overlapping distance (s) of the slits (71) and (73) and (72) and (74) can be arbitrarily selected, and the operation range of "OK" described later changes, It is possible to deal with the difference in tolerance given to each installation member.

FIG. 18 is an electrical connection diagram of the detection circuit according to the fourth embodiment.

In FIG. 18, the voltage comparators (81) and (82) are arranged at the output terminals of the detectors (5a) and (5b) of FIG. 13, and the input side of these voltage comparators (81) and (82) is arranged. Reference voltage generator (83)
Is provided. (Vg) and (Vh) are voltage comparators (81)
Output signals of (82) and (Vr) are reference voltages of the reference voltage generator (83). The reference voltage (Vr) of this reference voltage generator (83) is calculated from the maximum output voltage (Va) and (Vb) of the detectors (5a) and (5b) in the normal state where there is nothing in the gap (G). The output voltage is low and higher than the output voltages (Va) and (Vb) when the piano wire (1) is detected. The other circuit elements in FIG. 18 are the same as those in FIG.

In the fourth embodiment of the present invention having such a configuration, the two detectors (5a) and (5b) output the maximum output voltages (Va) and (Vb) in the normal state. Then, there is a relationship of (Va)> (Vr) and (Vb)> (Vr) with the reference voltage (Vr). Therefore, the voltage comparator (8
The output voltages (Vg) and (Vh) of 1) and (82) both hold "L" level. Therefore, indicators (26)-(28)
And the sound device (10) does not work. When the piano wire (1) enters the light receiving range of, the output voltage (Va) of the detector (5a) decreases (Va) <(Vr) and the output voltage (Vg) of the voltage comparator (81) Changes to “H” level. Therefore, the indicator (2
6) lights up and indicates the “forward movement” of the arrow.
0) generates a sound according to the oscillation frequency of the oscillator (41). Also, when the piano wire (1) is in the state shown in Fig. 16, (V
b) <(Vr), and the output voltage (V
h) changes to “H” level and the indicator (27) and sound device (1
The sign of "OK" is notified by 0). Further, when the state at this time is exceeded, the "reverse operation" is notified by the alarm (8) via the inverter (39). The above operations are exactly the same as in the third embodiment.

In the third and fourth embodiments, the alarm device (8) is configured to notify the stop and movement of the slide block (3) in three stages. As a result, even in a dark hoistway, measurement can be performed while checking with light and sound, which is accurate and extremely convenient. Further, if the gauge (2) and the slide block (3) are fixed, the alarm (8) can be used to check the distance (A) of the mounting member.

In the above-described embodiment, the case where the alarm (8) is used to notify by sound and light when the piano wire (1) is detected has been described as an example, but only one of them may be used. Further, the case where the gauge (2) is in the form of a strip and the scale is directly read on the reading surface (7) has been illustrated and described, but the gauge (2) may be formed in a columnar shape and indirectly by a vernier (vernier). It can also be configured to read. With Vernier,
There is an advantage that the measurement accuracy becomes high. The slide block (3) is slid along the gauge (2), but the slide block (3) is fixed with the piano wire (1) in the “OK” position. It can also be configured to slide on the side.

[Advantages of the Invention] As described above, a sliding portion that slides along a horizontally arranged gauge to indicate a scale, a sensor portion that mounts an optical sensor facing a piano wire, and this sensor portion. And a detector for notifying the detected state of the piano wire by sound or light depending on the detected state of the optical sensor of 1. As a result, the measurement operation is easier than the conventional measurement using a scale or the like, and a measurement error due to parallax or a reading position does not occur.

Therefore, according to the present invention, it is possible to provide an elevator installation measuring device capable of measuring the distance from the reference position of the installation member with high accuracy and quickly and automatically.

[Brief description of drawings]

1 and 2 are configuration explanatory views of an apparatus according to an embodiment of the present invention. FIG. 1 is a perspective explanatory view, FIG. 2 is a plan view, and FIGS. 3 and 4 are configuration explanatory views of a sensor unit. FIG. 5 is a diagram for explaining the characteristics of the detection range of the reflection type fiber sensor, FIG. 6 is an electrical connection diagram of the detection circuit, and FIGS. 7 and 8 are the configurations of the second embodiment of the present invention. FIG. 7 is a perspective explanatory view, FIG. 8 is a plan view, FIG. 9 is a configuration diagram of a modified example of the apparatus of FIGS.
FIG. 10 and FIG. 11 are configuration explanatory views of the third embodiment of the present invention.
FIG. 10 is a perspective explanatory view, FIG. 11 is a plan view, FIG. 12 is a structural explanatory view of the sensor section, FIG. 13 is an electrical connection diagram of the detection circuit of the third embodiment, and FIGS. FIG. 14 is a structural explanatory view of the fourth embodiment of the present invention, FIG. 14 is a perspective explanatory view, FIG. 15 is a plan view,
16 and 17 (A) and (B) are explanatory views of the detection section, and FIG. 18 is an electrical connection diagram of the detection circuit of the fourth embodiment of the present invention.
FIG. 19 is an explanatory diagram of a configuration of a conventional device. 1 to 18, (1) is a piano wire, (2)
Is a gauge, (3) is a slide block, (4) is a sliding part, (5), (5a) and (5b) are detectors, (6) is a sensor part, (7) is a reading surface, (8) Is an alarm, (9), (2
6), (27), (28) are indicators, (10) are acoustic instruments, (1
1), (21), (22), (23), (24) are sensors, (1
2) is a through hole, (14) is a threshold, and (M) is a measuring device. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (4)

[Claims] 1. A piano wire that hangs down a hoistway of an elevator to form a reference line, an installation member that is installed on the piano wire and the road wall of the hoistway, and a gauge that is horizontally arranged and provided with a scale. An elevator installation measuring device, comprising: a gauge for contacting the installation member with a scale to measure a distance of the installation member from the piano wire; and a sliding portion that slides along the gauge to indicate the scale. When,
A sensor unit having a sensor attached to the piano wire,
An elevator installation measuring device, comprising: a detector that notifies the detected state of the piano wire by light and / or sound based on the detection operation of a sensor attached to the sensor unit. 2. A piano wire that hangs down a hoistway of an elevator to form a reference line, an installation member that is installed on the piano wire and a road wall of the hoistway, and a gauge that is horizontally arranged and has a scale. An elevator installation measuring device, comprising: a gauge for contacting the installation member with a scale to measure a distance of the installation member from the piano wire; and a sliding portion that slides along the gauge to indicate the scale. When,
A sensor unit having a sensor attached to the piano wire,
An elevator installation measuring device comprising a slide block equipped with a detector that notifies the detected state of the piano wire by light and / or sound based on the detection operation of a sensor attached to the sensor unit. . 3. The elevator installation measuring device according to claim 2, wherein a reflective or transmissive fiber sensor is used as the sensor. 4. A slide for arranging two sets of sensors in the sensor section in a staggered position along a sliding direction of a slide block, and a stop position of the slide block by the detector and a stop for stopping at this stop position. The elevator installation measuring device according to claim 2, wherein the sliding direction of the block is notified by an alarm.