JP6959765B2 - Fastening work management device - Google Patents

Description

The present invention relates to a fastening work management device that manages fastening work using a rotary tool.

This type of prior art has been proposed in Patent Document 1. Patent Document 1 discloses a fastening tool, that is, a rotary tool, and a fastening management system, which are utilized in a fastening operation of tightening a fastening component such as a bolt to a predetermined fastening location. The prior art disclosed in Patent Document 1 includes an imaging device that captures an image of a fastening portion where fastening work is performed. It also includes a communication unit that communicates with the fastening tool and with the image pickup device. Further, it is provided with a processing unit for determining whether or not the fastening operation is normally performed based on the tightening torque applied to the fastening parts by the fastening tool communicated via the communication unit and the image captured by the imaging device. ing.

JP-A-2015-229210

In the prior art disclosed in Patent Document 1, consideration is given to the normal fastening work of the fastening parts. However, no consideration has been given to forgetting to attach the fastener, for example, forgetting to attach the fastener, which may occur when the fastener is reattached to the place where the fastener was removed.

In order to solve the above problems, an object of the present invention is to provide a fastening work management device capable of preventing forgetting to attach fasteners at fastening points.

In order to solve the above problems, the fastening work management device according to the present invention is a fastening work management device that manages the removal work and the mounting work of the fastening parts by a rotary tool that rotates the fastening parts, and is attached to a work place. The rotary tool includes an imaging device that captures an image including at least one of the name plate and the two-dimensional bar code, a measuring device that measures the myoelectric value when the rotary tool is rotated, and a control device. The control device is provided with a storage unit, and the storage unit is provided with a measurement unit for measuring a torque value during work, and the storage unit is provided with a predetermined torque for determining whether or not the removal operation is normally performed. The value and the myoelectric value are stored as a first torque threshold and a first myoelectric value threshold, respectively, and the predetermined torque value and the above-mentioned torque value for determining whether or not the installation work is normally performed are performed. The myoelectric values are stored as a second torque threshold value and a second myoelectric value threshold value, respectively, and the control device determines a removal location for performing the removal operation of the fastening component based on an image captured by the imaging device. It is determined that the myoelectric value measured by the measuring device has reached the first myoelectric value threshold within the first predetermined period from the process of acquiring the removal work location specific information to be specified and the start of the removal work. Further, when it is determined that the torque value at the time of the removal work by the rotary tool measured by the measuring unit reaches the first torque threshold value, the process of determining that the removal work of the removal portion has been normally performed. If, when said detaching operation is determined to have been normally performed, the detaching point identification information, the process of storing in the storage unit as the removable portion data, based on an image which the imaging device imaged the The myoelectric value measured by the measuring device is the process of acquiring the attachment work location identification information for specifying the attachment location for performing the attachment work of the fastening component, and the myoelectric value measured by the measuring device within the second predetermined period before the end of the attachment work. It is determined to have reached the second muscle electrodeposition value threshold and, if said torque value at the time of the mounting operation by the rotary tool the measuring portion is measured is determined to have reached the second torque threshold value, the attachment point Of the processing for determining that the installation work was normally performed and the removal work location identification information stored in the storage unit as the removal location data when it is determined that the installation operation was normally performed. , The removal work location that matches the installation work location specific information It is characterized in that a process of erasing specific information from the storage unit is performed.

According to the fastening work management apparatus according to the present invention, Ru can improve the reliability of the fastening operation. Issues, configurations and effects other than those described above will be clarified by the description of the following embodiments.

It is a side view which shows the passenger conveyor mentioned as an example of the machine to which 1st Embodiment of the fastening work management apparatus which concerns on this invention is applied. It is an enlarged view of the part A of FIG. It is a figure which shows the fastening work management apparatus which concerns on 1st Embodiment. It is a side view which shows the torque wrench (rotary tool) provided in 1st Embodiment. It is a front view which shows the wearable camera (imaging apparatus) provided in 1st Embodiment. It is a perspective view which shows the wearable sensor (measuring apparatus) provided in 1st Embodiment. It is a figure which shows the waveform characteristic of the myoelectric value output from the wearable sensor. It is a block diagram which shows the main part structure of the tablet (control device) provided in 1st Embodiment. It is a block diagram which shows the main part structure of the torque wrench provided in 1st Embodiment. It is a block diagram which shows the main part structure of the wearable sensor provided in 1st Embodiment. It is a figure which shows the fastening work performed using the 1st Embodiment. It is a figure which shows the correlation of the myoelectric value and the tightening torque value stored in advance in the storage part of the tablet provided in the 2nd Embodiment of this invention.

Hereinafter, embodiments of the fastening work management device according to the present invention will be described with reference to the drawings.

<< First Embodiment >>
As shown in FIG. 1, the passenger conveyor to which the first embodiment of the fastening work management device according to the present embodiment is applied is arranged in the skeleton 2 and connected to the moving handrail 1 gripped by the passenger in an endless manner. It includes a step chain 3 and a step 4 connected to the step chain 3. Further, it is housed in the upper machine room 13 and includes a step reversing device 5 for moving the step 4 in a predetermined trajectory, and a driving device 6 for driving the step 4 and the moving handrail 1.

As shown in FIG. 2, the step mounting portion 7 of the step chain 3 and the step 4 are fastened with a fastening component such as a bolt 8. A name plate such as a sticker on which a number that is continuous and does not overlap is attached to the step 4. A two-dimensional bar code may be attached instead of the name plate. The portion of the bolt 8 for fastening the step 4 having the number specified by the name plate or the two-dimensional bar code described above constitutes the fastening portion.

The first embodiment of the fastening work management device according to the present invention is a device that manages whether or not the fastening work of the bolt 8 at the above-mentioned fastening portion is normally performed.

As shown in FIG. 3, the fastening work management device according to the first embodiment includes an imaging device, for example, a wearable camera 10, which is attached to the chest of the worker W1 and images the fastening portion described above. As shown in FIG. 5, the wearable camera 10 has an imaging unit 10a that images the fastening portion and outputs an imaging signal, and an output unit that outputs an image captured by the imaging unit 10a as an image signal. There is.

Further, as shown in FIG. 3, the first embodiment includes a rotary tool for rotating the bolt 8, for example, a torque wrench 11. As shown in FIGS. 4 and 9, the torque wrench 11 applies the socket 11a mounted on the bolt 8, the grip portion 11b gripped by the operator W1, and the tightening torque applied to the bolt 8 by the torque wrench 11. It has a measuring unit 11c for measurement and a communication unit 11d for outputting the tightening torque value measured by the measuring unit 11c.

Further, as shown in FIG. 3, the first embodiment includes a wearable sensor 12 that is attached to the arm of the worker W1 and constitutes a measuring device for measuring the myoelectric value of the worker W1. As shown in FIGS. 6 and 10, the wearable sensor 12 is measured by the myoelectric value sensor unit 12a for measuring the change in the potential of the skin surface related to the movement of the muscle of the worker W1 and the myoelectric value sensor unit 12a. It has a communication unit 12c that outputs a myoelectric potential, and a mounting band 12b that facilitates mounting of the worker W1 on the arm.

FIG. 7 is a diagram showing the waveform characteristics of the myoelectric value output from the wearable sensor 12. The horizontal axis represents time t, and the vertical axis represents myoelectric value B. In FIG. 7,
a: Waveform characteristics obtained during bolt 8 installation work b: Waveform characteristics obtained during bolt 8 removal work Pa: Rotation operation area where a large torque is applied by the torque wrench 11 during bolt 8 installation work Pb: Bolt 8 removal Rotation operation area where a large torque is applied by the torque wrench 11 during work Ra: Rotation operation area where quick rotation operation is performed by the torque wrench 11 during bolt 8 installation work Rb: Quick rotation operation by the torque wrench 11 when removing the bolt 8 Is the rotation operation area where is performed.

As shown by the waveform characteristic b in FIG. 7, when the torque wrench 11 having the socket 11a attached to the bolt 8 is rotated counterclockwise to remove the bolt 8, the initial stage of the rotation operation of the torque wrench 11 is performed. In the rotation operation region Pb (first predetermined period in the claim) , a large value myoelectric value B corresponding to a large torque is output. A small value of the myoelectric value B is output with the subsequent rotation operation of the torque wrench 11, and the myoelectric value B becomes 0 when the bolt 8 is removed.

Further, as shown by the waveform characteristic a in FIG. 7, the myoelectric value B is 0 during the mounting work of the bolt 8 in which the torque wrench 11 in which the socket 11a is mounted on the bolt 8 is rotated clockwise. From the state, a small myoelectric value B is continuously output as shown by the rotation operation area Ra. Immediately before the tightening of the bolt 8 is completed, a large myoelectric value B corresponding to a large torque is output as shown in the rotation operation area Pa (second predetermined period in the claims).

Therefore, from the waveform characteristics a and b of the myoelectric value B shown in FIG. 7, it is possible to detect whether the bolt 8 is being attached or removed.

Further, in the first embodiment, as shown in FIG. 3, the image signal output from the wearable camera 10, the tightening torque value output from the torque wrench 11, and the myoelectric value output from the wearable sensor 12 are input, respectively. It is equipped with a tablet-type personal computer (hereinafter, referred to as "tablet") 9 that constitutes a control device that is easy to carry.

As shown in FIG. 8, the tablet 9 includes a wearable camera 10, a torque wrench 11, and a communication unit 9a that wirelessly communicates with the wearable sensor 12.

Further, the tablet 9 performs a process of displaying an image of the fastening portion captured by the wearable camera 10 constituting the imaging device, that is, the step 4 including the number, and is measured by the wearable sensor 12 constituting the measuring device. Based on the myoelectric value and the tightening torque value given to the bolt 8 by the torque wrench 11 constituting the rotary tool, the processing unit 9b for determining whether the bolt 8 is normally attached or detached at the fastening point is provided. Have. The processing unit 9b includes a CPU (Central Processing Unit).

Further, the tablet 9 is a storage unit composed of a flash memory that stores the attachment location of the bolt 8, for example, the attachment location of the bolt 8 that is reattached to the removal location from which the bolt 8 has been removed, as fastening location data, that is, removal location data. It has 9c.

When the bolt 8 attachment work is completed, the storage unit 9c stores a word or an image indicating that the bolt 8 is not attached to the bolt 8 removal location described above. The wording that the bolt 8 is not attached is, for example, "Please attach the bolt to the step 4 of the number XX." Further, the image indicating that the bolt 8 is not attached is, for example, an image urging the bolt 8 to be attached to the step 4 of the number XX.

Further, the storage unit 9c stores in advance the tightening torque value and the myoelectric value when the bolt 8 removal work is considered to be completed as the first torque threshold value and the first myoelectric value threshold value. Further, the tightening torque value and the myoelectric value when the bolt 8 attachment work is considered to be completed are stored in advance as the second torque threshold value and the second myoelectric value threshold value. Further, the range of the allowable tightening torque value when the bolt 8 attachment work is considered to be completed is stored in advance as a specified range. The above-mentioned first torque threshold value, second torque threshold value, first myoelectric value threshold value, and second myoelectric value threshold value are obtained when a worker W1 who is skilled in fastening the bolt 8 loosens and removes the bolt 8 in advance. It is set based on the actually measured value obtained in the above, or the actually measured value obtained when the bolt 8 is tightened and attached in advance.

Further, the tablet 9 displays an image of the fastening portion captured by the wearable camera 10, and when reattaching the bolt 8 to the removing portion of the bolt 8, the attachment of the bolt 8 is completed when the attachment work of the bolt 8 is completed. It has a display unit 9d that displays a word or an image indicating that the bolt 8 is not attached to the removal portion stored in the storage unit 9c when the forgetting occurs. The display unit 9d is composed of a touch panel type liquid crystal display.

The processing unit 9b described above determines whether the tightening torque value measured by the measuring unit 11c of the torque wrench 11 is the first torque threshold value stored in the storage unit 9c at the time of removing the bolt 8, and also determines whether the tightening torque value is stored in the storage unit 9c. It is determined whether the myoelectric value measured by the electric value sensor unit 12a is the first myoelectric value threshold stored in the storage unit 9c. When the tightening torque value is determined to be the first torque threshold value and the myoelectric value is determined to be the first myoelectric value threshold value, it is determined that the bolt 8 removal operation has been performed normally.

Further, the processing unit 9b determines whether the tightening torque value measured by the measuring unit 11c of the torque wrench 11 is the second torque threshold value stored in the storage unit 9c at the time of attaching the bolt 8, and also determines whether the tightening torque value is stored in the storage unit 9c and the muscle of the wearable sensor 12. It is determined whether the myoelectric value measured by the electric value sensor unit 12a is the second myoelectric value threshold stored in the storage unit 9c. When the tightening torque value is determined to be the second torque threshold value and the myoelectric value is determined to be the second myoelectric value threshold value, is the tightening torque value further included in the specified range stored in the storage unit 9c? To judge. When it is determined that the bolt 8 is included in the specified range, it is determined that the bolt 8 attachment work has been performed normally.

Further, the processing unit 9b performs a process of storing the removal location data (the number of the step 4) in the storage unit 9c based on the image of the fastening portion captured by the wearable camera 10. Further, at the time of attaching the bolt 8, it is determined whether the bolt 8 is attached to the removed portion from which the bolt 8 has been removed, based on the fastening location data stored in the storage unit 9c, that is, the removed portion data, and the bolt is attached to the removed portion. When it is determined that 8 is not attached, a warning signal is output.

The caution signal output from the processing unit 9b comprises a display signal for displaying the above-mentioned wording or image indicating that the bolt 8 is not attached to the removed portion on the display unit 9d.

Further, the processing unit 9b performs a process of erasing the corresponding removal location data (number of step 4) stored in the storage portion 9c when the bolt 8 is attached to the removal location.

The tablet 9 has a work start instruction unit 9e for instructing the start of the bolt 8 removal work and the installation work, and a work end instruction unit 9i for supporting the end of the bolt 8 removal work and the installation work. ..

Hereinafter, the management procedure of the bolt 8 removal work and the attachment work carried out in the first embodiment will be described.

[Removal work of bolt 8]
As shown in FIG. 3, the worker W1 wears the wearable camera 10 on his chest. Further, a wearable sensor 12 is attached between the shoulder joint and the elbow joint of at least one of the left and right arms for rotating the torque wrench 11, for example, the right arm.

As shown in FIG. 11, the worker W1 operates the passenger conveyor so that the step 4 to be removed is in a position where the bolt 8 can be removed, and enters the upper machine room 13. Next, the worker W1 operates the work start instruction unit 9e of the tablet 9. The wearable camera 10 is activated by the operation of the work start instruction unit 9e. By activating the wearable camera 10, the image captured by the wearable camera 10 is displayed on the display unit 9d by the processing of the processing unit 9b of the tablet 9. The image is detected by a commonly used image contour detection technique such as edge processing.

Next, the operator W1 attaches the socket 11a of the torque wrench 11 to the bolt 8 related to the step 4 to be removed, and rotates the torque wrench 11 counterclockwise.

If it is difficult for the wearable camera 10 to take an image of the bolt 8 at the fastening point, the image of the step 4 may be taken without being particular about the image of the bolt 8.

The processing unit 9b of the tablet 9 measures with the measuring unit 11c of the torque wrench 11 and determines whether the tightening torque value output from the communication unit 11d is the first torque threshold value stored in the storage unit 9c. Further, it is determined whether the myoelectric value measured by the myoelectric value sensor unit 12a of the wearable sensor 12 is the first myoelectric value threshold value stored in the storage unit 9c.

When the tightening torque value is determined to be the first torque threshold value and the myoelectric value is determined to be the first myoelectric value threshold value, the processing unit 9b determines that the bolt 8 removal operation has been performed normally. Further, at this time, the fastening portion from which the bolt 8 has been removed, that is, the number of the step 4 is stored in the storage unit 9c as the removal location data by the processing of the processing unit 9b. In addition, the signal output from the processing unit 9b indicates on the display unit 9d of the tablet 9 that the bolt 8 has been removed normally.

If there are a plurality of fastening points, the same operation is performed until the bolts 8 at all the fastening points are removed. When the work of removing the bolts 8 at all the fastening points is completed, the worker W1 operates the work end instruction unit 9f of the tablet 9. When the work end instruction unit 9f is operated, the wearable camera 10 is stopped by the processing of the processing unit 9b.

[Bolt 8 installation work]
The worker W1 brings the step 4 into contact with the step attachment portion 7 of the step chain 3, drives the passenger conveyor to a position where the bolt 8 can be attached, and enters the upper machine room 13. Next, the worker W1 operates the work start instruction unit 9e. This activates the wearable camera 10. By activating the wearable camera 10, the image captured by the wearable camera 10 is displayed on the display unit 9d by the processing of the processing unit 9b of the tablet 9. The operator W1 attaches the bolt 8 to the step mounting portion 7 of the step 4 and the step chain 3, and rotates the bolt 8 clockwise with a torque wrench 11 to tighten the bolt 8.

The processing unit 9b of the tablet 9 determines whether the tightening torque value measured by the measuring unit 11c of the torque wrench 11 is the second torque threshold value stored in the storage unit 9c. Further, it is determined whether the myoelectric value measured by the wearable sensor 12 is the second myoelectric value threshold value stored in the storage unit 9c.

When the tightening torque value is determined to be the second torque threshold value and the myoelectric value is determined to be the second myoelectric value threshold value, it is determined whether the tightening torque value is included in the specified range stored in the storage unit 9c. .. When it is determined that the bolt 8 is included in the specified range, the processing unit 9b determines that the bolt 8 attachment work has been performed normally.

At this time, the signal output from the processing unit 9b indicates that the bolt 8 attachment work has been normally performed on the display unit 9d of the tablet 9. In addition, the processing unit 9b performs a process of erasing the memory of the removed location data (number of the step 4) related to the corresponding step 4 in the storage unit 9c.

If there are a plurality of fastening points, the same operation is performed until the bolts 8 are attached to all the fastening points. When the work of attaching the bolts 8 at all the fastening points is completed, the worker W1 operates the work end instruction unit 9i of the tablet 9. In response to this operation, the processing unit 9b determines the presence / absence of the removal location data (number of the step 4) stored in the storage unit 9c. If the removal location data is not stored in the storage unit 9c, the display unit 9d displays a display indicating that all the bolt 8 attachment operations have been normally performed by the processing of the processing unit 9b.

Further, when the storage unit 9c has a storage of the removal location data, the above-mentioned wording or image indicating that the bolt 8 is not attached to the display unit 9d by the processing of the processing unit 9b. Is displayed. The operator W1 is urged to attach the bolt 8 to the corresponding removal location according to the wording or image displayed on the display unit 9d.

When the bolt 8 that has been forgotten to be attached is attached to the removal location and the corresponding removal location data stored in the storage unit 9c is erased, the wearable camera 10 is stopped by the processing of the processing unit 9b. do.

According to the first embodiment configured in this way, the image captured by the wearable camera 10, the tightening torque value measured by the measuring unit 11c of the torque wrench 11, and the myoelectric value sensor unit 12a of the wearable sensor 12 are used. Based on the myoelectric value obtained, it is possible to accurately control whether the bolt 8 is normally removed and attached to the fastening portion. In addition, it is possible to reliably prevent forgetting to attach the bolt 8 at the fastening portion.

<< Second Embodiment >>
The fastening work management device according to the second embodiment of the present invention also includes the wearable camera 10 and the wearable sensor 12 shown in FIG. 3 as in the first embodiment. The rotary tool for rotating the bolt 8 includes a general tool having the socket 11a and the grip portion 11b shown in FIG. 4 but not the measuring portion 11c and the communication portion 11d, for example, a spanner.

Further, the storage unit 9c of the tablet 9 provided in the second embodiment stores in advance the myoelectric value when it is considered that the removal work of the bolt 8 is completed as the first myoelectric value threshold value, and bolts. The myoelectric value when it is considered that the attachment work of 8 is completed is stored in advance as the second myoelectric value threshold value. Further, the storage unit 9c stores the correlation between the myoelectric value B and the tightening torque value T shown in FIG. This correlation is such that the tightening torque value increases as the value of the myoelectric value B increases. Further, the storage unit 9c stores the range of the allowable tightening torque value when it is considered that the bolt 8 attachment work is completed as the specified range E.

The processing unit 9b of the tablet 9 determines whether the myoelectric value measured by the myoelectric value sensor unit 12a of the wearable sensor 12 is the first myoelectric value threshold value stored in the storage unit 9c at the time of removing the bolt 8. When the measured myoelectric value is determined to be the first myoelectric value threshold value, it is determined that the bolt 8 removal operation has been performed normally.

Further, the processing unit 9b determines whether the myoelectric value measured by the wearable sensor 12 is the second myoelectric value threshold value stored in the storage unit 9c at the time of attaching the bolt 8. When the second myoelectric value threshold is determined, the tightening torque is based on the myoelectric value measured by the myoelectric value sensor unit 12a of the wearable sensor 12 and the correlation of FIG. 12 stored in the storage unit 9c. The value is calculated, and it is determined whether or not the calculated tightening torque value is included in the specified range E stored in the storage unit 9c. When it is determined that the bolt 8 is included in the specified range E, it is determined that the bolt 8 attachment work has been performed normally.

Similar to the processing unit 9b in the first embodiment, the processing unit 9b in the second embodiment is also removed from the storage unit 9c based on the image of the fastening portion captured by the wearable camera 10 (number of step 4). ) Is stored. Further, it is determined whether or not the bolt 8 is attached to the removed portion from which the bolt 8 has been removed, based on the removed portion data stored in the storage unit 9c during the attachment operation of the bolt 8. When it is determined that the bolt 8 is not attached to the removed portion, a warning signal is output. The caution signal comprises a wording that the bolt 8 is not attached to the removed portion, or a display signal for displaying an image on the display unit 9d.

Other configurations are the same as those of the first embodiment described above. Further, the machine to which the fastening work management device according to the second embodiment is applied and the fastening location are also the passenger conveyor shown in FIG. 1 and the numbered bolt 8 portion of the step 4 as in the first embodiment. Is.

[Removal work]
The worker W1 wears the wearable camera 10 on the chest. Further, the wearable sensor 12 is attached to at least one of the left and right arms for operating the spanner, for example, the right arm.

The worker W1 operates the passenger conveyor so that the step 4 to be removed can remove the bolt 8, and enters the upper machine room 13. Next, the worker W1 operates the work start instruction unit 9e of the tablet 9 to activate the wearable camera 10.

Next, the operator W1 attaches the socket of the spanner to the bolt 8 related to the step 4 to be removed, and rotates the spanner counterclockwise.

The processing unit 9b of the tablet 9 determines whether the myoelectric value measured by the myoelectric value sensor unit 12a of the wearable sensor 12 is the first myoelectric value stored in the storage unit 9c.

When the myoelectric value is determined to be the first myoelectric value threshold value, the processing unit 9b determines that the bolt 8 removal operation has been performed normally. Further, the removed portion of the bolt 8 is stored in the storage unit 9c as the removed portion data. At this time, the signal output from the processing unit 9b indicates that the bolt 8 removal operation has been normally performed on the display unit 9d of the tablet 9.

If there are a plurality of fastening points, the same operation is performed until the bolts 8 are removed from all the fastening points. When the work of removing the bolts 8 at all the fastening points is completed, the worker W1 operates the work end instruction unit 9i of the tablet 9. The wearable camera 10 is stopped by the processing of the processing unit 9b in response to the operation of the work end instruction unit 9i.

[Bolt 8 installation work]
The worker W1 brings the step 4 into contact with the step mounting portion 7 of the step chain 3 and operates the passenger conveyor so as to be in a position where the bolt 8 can be mounted, and inside the upper machine room 13. to go into. Next, the operator W1 attaches the bolt 8 to the step mounting portion 7 of the step chain 3, and rotates the bolt 8 clockwise with a spanner to tighten the bolt 8.

The processing unit 9b of the tablet 9 determines whether the myoelectric value measured by the myoelectric value sensor unit 12a of the wearable sensor 12 has reached the second myoelectric value threshold value stored in the storage unit 9c.

When the myoelectric value is determined to be the second myoelectric value threshold value, the processing unit 9b shows the myoelectric value measured by the myoelectric value sensor unit 12a of the wearable sensor 12 and FIG. 12 stored in the storage unit. The tightening torque value T corresponding to the myoelectric value is calculated based on the correlation shown. Next, it is determined whether the calculated tightening torque value T is included in the specified range E stored in the storage unit 9c. When it is determined that the bolt 8 is included in the specified range E, it is determined that the bolt 8 attachment work has been performed normally. In addition, the processing unit 9b performs a process of erasing the storage of the cancellation location data related to the corresponding step 4 in the storage unit 9c.

If there are a plurality of fastening points, the same operation is performed until the bolts 8 are attached to all the fastening points. When the attachment work of the bolts 8 at all the fastening points is completed, the worker W1 operates the work end instruction unit 9i of the tablet 9. In response to this operation, the processing unit 9b determines whether or not there is removal location data (number of step 4) stored in the storage unit 9c. If the removal location data is not stored in the storage unit 9c, the display unit 9d displays a display indicating that all the bolt 8 attachment operations have been normally performed by the processing of the processing unit 9b.

Further, when the storage unit 9c has the storage of the removal location data (the number of the step 4), the bolt 8 is not attached to the display unit 9d by the processing of the processing unit 9b at the corresponding removal location. A word or image to that effect is displayed. The operator W1 is urged to attach the bolt 8 to the corresponding removal location according to the wording or image displayed on the display unit 9d.

When the bolt 8 that has been forgotten to be attached is attached to the removal location and the corresponding removal location data stored in the storage unit 9c is erased, the wearable camera 10 is stopped by the processing of the processing unit 9b.

According to the second embodiment configured in this way, the image captured by the wearable camera 10 and the myoelectric value measured by the myoelectric value sensor unit 12a of the wearable sensor 12 are used in the same manner as in the first embodiment. , It is possible to accurately control whether the removal and attachment work of the bolt 8 with respect to the fastening portion is performed normally. In addition, it is possible to reliably prevent forgetting to attach the bolt 8.

In the first and second embodiments, the wearable camera 10 is attached to the chest of the worker W1, but the wearable camera 10 may be attached to the head of the worker W1. It may be installed in a place where the fastening portion can be imaged without being attached to the person W1.

Further, in the first and second embodiments, the wearable sensor 12 is attached to the arm of the worker W1, but if the myoelectric value during work can be measured, the wearable sensor 12 is attached to the chest or the like of the worker W1. You may.

Further, in the first embodiment, between the wearable camera 10, the torque wrench 11, the wearable sensor 12 and the tablet 9, and in the second embodiment, between the wearable camera 10, the wearable sensor 12 and the tablet 9. , Although wireless communication was performed respectively, wired communication may be used.

Further, in the first and second embodiments, the fastening part is a bolt 8, but the fastening part may be composed of a nut or a screw that is screwed into the bolt.

Further, in the first and second embodiments, the fastening portion from which the bolt 8 is removed when the bolt 8 is removed, that is, the number specifying the step 4, is stored in the storage unit 9c as the removal location data (fastening location data). Although the configuration is memorized, the present invention is not limited to such a configuration. The data of the fastening portion to which the bolt 8 is attached, that is, the number of the step 4 may be stored in advance in the storage unit 9c.

Further, the passenger conveyor is mentioned as the machine to which the first and second embodiments are applied, and the portion of the bolt 8 for fastening the step 4 is mentioned as the fastening point. The fastening location is not limited to the passenger conveyor and the step 4.

The present invention can also be applied to, for example, the management of removal and attachment work of fastening parts at a plurality of fastening points provided in a brake device of an elevator device.

Further, the present invention can also be applied to the management of removal and installation work of fastening parts at fastening points provided in machines different from passenger conveyors and elevator devices.

The configuration of each part is not limited to the illustrated embodiment, and various changes can be made without departing from the gist of the present invention.

4 ... Step, 7 ... Step mounting part, 8 ... Bolt (fastener), 9 ... Tablet (control device), 9a ... Communication unit, 9b ... Processing unit, 9c ... Storage unit, 9d ... Display unit, 9e ... Work start instruction unit, 9f ... Work end instruction unit, 10 ... Wearable camera (imaging device), 10a ... Imaging unit, 11 ... Torque wrench (rotary tool), 11a ...・ Socket, 11b ・ ・ Grip part, 11c ・ ・ Measuring part, 11d ・ ・ Communication part, 12 ・ ・ Wearable sensor (measuring device), 12a ・ ・ Myoelectric value sensor part, 12b ・ ・ Wearing band, 12c ・ ・ Communication Department, 13 ... Upper machine room, W1 ... Worker, E ... Specified range

Claims (3)

A fastening work management device that manages the removal work and installation work of the fastening parts by a rotary tool that rotates the fastening parts.
An imaging device that captures an image that includes at least one of the nameplate and two-dimensional bar code attached to the work area.
A measuring device that measures the myoelectric value when rotating the rotary tool, and
Equipped with a control device,
The rotary tool includes a measuring unit for measuring a torque value during work.
The control device includes a storage unit.
The predetermined torque value and the myoelectric value for determining whether or not the removal operation is normally performed are stored in the storage unit as a first torque threshold value and a first myoelectric value threshold value, respectively. At the same time, the predetermined torque value and the myoelectric value for determining whether or not the attachment work is normally performed are stored as the second torque threshold value and the second myoelectric value threshold value, respectively.
The control device is
Based on the image captured by the imaging device, the process of acquiring the removal work location identification information for specifying the removal location for performing the removal operation of the fastener component, and the process of acquiring the removal work location identification information.
Within the first predetermined period from the start of the removal work, it is determined that the myoelectric value measured by the measuring device has reached the first myoelectric value threshold value, and the rotary tool measured by the measuring unit is used. When it is determined that the torque value at the time of the removal work has reached the first torque threshold value, the process of determining that the removal work of the removal location has been performed normally and the process of determining that the removal work has been performed normally.
If the removal operation is determined to have been normally performed, the processing of storing the detaching point identification information, in the storage unit as the removable portion data,
Based on the image captured by the imaging device, a process of acquiring mounting work location identification information for specifying a mounting location for performing the mounting work of the fastener component, and
Within the second predetermined period before the end of the mounting work, it is determined that the myoelectric value measured by the measuring device has reached the second myoelectric value threshold value, and the rotary tool measured by the measuring unit is used. When it is determined that the torque value at the time of the mounting work has reached the second torque threshold value, a process of determining that the mounting work at the mounting location has been performed normally and a process of determining that the mounting work has been performed normally.
If the mounting work is determined to have been normally performed, among the detaching point identification information stored in the storage unit as the removable portion data, the detaching point identification that matches the installation work point identification information A fastening work management device characterized by performing a process of erasing information from the storage unit. A fastening work management device that manages the removal work and installation work of the fastening parts by a rotary tool that rotates the fastening parts.
An imaging device that captures an image that includes at least one of the nameplate and two-dimensional bar code attached to the work area.
A measuring device that measures the myoelectric value when rotating the rotary tool, and
Equipped with a control device,
The rotary tool includes a measuring unit for measuring a torque value during work.
The control device includes a storage unit.
In the storage unit, a predetermined first myoelectric value threshold value, which is a myoelectric value for determining whether or not the removal work is normally performed, and a predetermined attachment work are normally performed. The second myoelectric value threshold value, which is the myoelectric value for determining whether or not it is present, the correlation between the myoelectric value and the torque value, and the specified range are stored.
The control device is
Based on the image captured by the imaging device, the process of acquiring the removal work location identification information for specifying the removal location for performing the removal operation of the fastener component, and the process of acquiring the removal work location identification information.
When it is determined that the myoelectric value measured by the measuring device reaches the first myoelectric value threshold within the first predetermined period from the start of the removal work, the removal work of the removal portion is normally performed. The process of determining that the value has been lost
When it is determined that the removal work has been performed normally, the process of storing the removal work location identification information in the storage unit as the removal location data, and
Based on the image captured by the imaging device, a process of acquiring mounting work location identification information for specifying a mounting location for performing the mounting work of the fastener component, and
Within the second predetermined period before the end of the mounting work, it is determined that the myoelectric value measured by the measuring device has reached the second myoelectric value threshold, and the rotary tool measured by the measuring unit is used. The torque value at the time of the attachment operation is stored in the storage unit in association with the myoelectric value when it is determined in the correlation stored in the storage unit that the second myoelectric value threshold has been reached. When it is determined that the torque value is included in the specified range centered on the torque value, the process of determining that the mounting operation of the mounting location has been performed normally and the process of determining that the mounting work has been performed normally
When it is determined that the attachment work has been performed normally, the removal work location identification that matches the attachment work location identification information among the removal work location identification information stored in the storage unit as the removal location data is specified. Performing a process of erasing information from the storage unit.
Fastening work management device characterized by . The fastening work management device according to claim 1 or 2.
With more display devices
The control device is characterized in that when all the removal work location identification information stored in the storage unit is erased, a display indicating that all the work has been performed normally is displayed on the display device. Work management device.

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