JP2015224781A - Road auxiliary facility, its construction method, nut and management device for road auxiliary facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a nut fastening confirmation to be carried out with high accuracy, enable a miss of human error of a worker to be positively prevented and further enable a nut fastening confirmation to be carried out under labor saving within a short period of time.SOLUTION: This invention relates to a road auxiliary facility comprising an upper stage nut part 11; a lower stage nut part 12; and a connecting part 13 for connecting the upper stage nut part 11 and the lower stage nut part 12 by a groove part 14 between the upper stage nut part 11 and the lower stage nut part 12. The lower stage nut part 12 of a nut 10 in which a connecting part 13 is broken through fastening more than a prescribed fastening torque is engaged in thread with a bolt 51 inserted into facility construction material such as a base plate 203, fastened in more than a prescribed fastening torque, an outer appearance of this fastened state is changed from an original shape of the nut 10 under a state in which the upper stage nut part 11 is removed and the lower stage nut part 12 is left, this changed outer appearance can be visually acknowledged from its overall view from a position spaced apart more than a prescribed distance.

Description

  The present invention relates to road incidental facilities such as sound insulation walls, blindfolds, guardrails, and signage facilities in which nut fastening is used, and a method for constructing the same, nuts, and road incidental facility management devices.

  On highways, many road accessories such as sound insulation walls, blindfolds, guardrails, signs, etc. are installed with bolts and nuts. This nut tightening is a nut that has been tightened with a torque wrench after screwing the nut into a bolt inserted into a required part of the road incidental equipment, and then tightening the torque wrench again to confirm the tightening torque state. Generally, it is carried out in the flow of confirming by covering.

  On the other hand, there is a nut that can ensure an appropriate tightening torque during tightening (see Patent Documents 1 and 2). In the nut of Patent Document 1, a pair of split grooves facing the axial center from the outer peripheral surface is formed between the upper stage nut part and the lower stage nut part, and a connecting part extending in the radial direction is formed between the pair of split grooves. When tightening until a predetermined tightening torque is exceeded, the connecting portion is sheared and broken, so that a predetermined tightening torque can be obtained at the time of tightening. The upper nut portion separated by the shear fracture is further tightened so as to press the lower nut portion.

  Moreover, the nut of patent document 2 has a nut part and a flange part with a diameter larger than the outer diameter of a nut part, and the circumferential groove part is formed between a nut part and a flange part, and a groove part and screw formation are formed. A connecting part is formed between the two parts, and when tightening is performed until a predetermined tightening torque is exceeded, the connecting part is sheared and destroyed, so that a predetermined tightening torque can be obtained during tightening. ing.

JP 2001-227519 A JP 2009-287766 A

  By the way, when performing nut fastening of a road incidental facility on an expressway, if a general nut is used, a variation in the tightening torque of the nut fastening occurs due to the skill level of the operator and carelessness. It is desirable to use a nut capable of obtaining an appropriate tightening torque at the time of tightening as in 2 and to secure nut tightening with an appropriate tightening torque over a large number of fastening locations.

  However, if the nut tightening is performed using a normal nut, or if the nut is tightened using a nut that can secure a predetermined tightening torque at the time of tightening, the operator's carelessness In order to prevent human errors such as forgetting to tighten the nuts, it is essential to separately check the tightening of the nuts after the completion of construction.

  The work of confirming the tightening after the construction is generally carried out by rotating a torque wrench on the nut one by one and rotating it in the tightening direction for a large number of nut fastening locations of the road incidental equipment. It takes a long time.

  In particular, when nuts are fastened due to intensive work or nighttime closure, the possibility of human error increases, and tightening confirmation after work is more important, but the road was opened. In this state, the operator cannot walk on the main line, the efficiency of the confirmation work is reduced, and there are some fastening points that make it difficult to confirm the tightening, such as a sign fixing bolt that straddles the main line. It is necessary to perform a tightening confirmation work within the closed time. However, there is a limit in accurately performing such tightening confirmation work that requires a great amount of labor and a long time within the limited closing time, and if the closing time required for the checking work is increased accordingly, the user The problem arises that the convenience of the system is impaired.

  In addition, when a nut capable of securing a predetermined tightening torque at the time of tightening in Patent Documents 1 and 2 is used, a connection portion between the upper nut portion and the lower nut portion is tightened at a predetermined tightening torque or more. Is formed, and the connecting portion between the nut portion and the flange portion is formed in a broken shape. These broken shapes are formed between the upper nut portion and the lower nut portion, and between the nut portion and the flange portion. In addition, it is often arranged so that the side surface of the upper nut portion and the side surface of the lower nut portion are aligned even after separation, so at a glance the predetermined tightening torque It cannot be confirmed whether it is tightened by the above. Therefore, in this case as well, it is necessary to put a torque wrench on the nut one by one and rotate it in the tightening direction, or to look at the very local area in detail, and similarly, it takes a lot of labor and a long time. Tightening confirmation work.

  For this reason, there is a demand for a technique that can perform tightening confirmation of nut fastening easily and in a short time with high accuracy.

  The present invention is proposed in view of the above-mentioned problems, and can confirm the tightening of the nut fastening of the equipment construction material with high accuracy, and can reliably prevent the operator from overlooking the human error during the fastening of the nut. To provide a road ancillary equipment, a construction method for road ancillary equipment, a nut used for fastening the nuts of the road ancillary equipment, and a management method for the road ancillary equipment, which can be performed in a short time with labor-saving confirmation of fastening Objective.

The road incidental equipment of the present invention has an upper nut portion, a lower nut portion, and a connecting portion that connects the upper nut portion and the lower nut portion at a groove portion between the upper nut portion and the lower nut portion. The lower nut portion of the nut that breaks the connecting portion when tightened with a predetermined tightening torque or more is screwed into a bolt inserted through the equipment construction material and is tightened with a predetermined tightening torque or more. The external appearance of the nut that has been tightened with a tightening torque of or greater than that of the nut has changed from the original shape of the nut, and the external appearance that has changed from the original shape is visually recognizable from a position separated by a predetermined distance or more. It is characterized by providing.
According to this, since the appearance of the state tightened with a predetermined tightening torque or more has changed from the original shape of the nut, it is possible to recognize this and perform tightening confirmation of the nut fastening of the equipment construction material with high accuracy. It is possible to reliably prevent oversight of human errors such as forgetting to tighten the operator when tightening the nut, and improve the reliability of construction. In addition, since this appearance can be visually recognized from a position far away from a predetermined distance, there is no need for troublesome troubles of localizing details, and it is possible to check and tighten the nuts after construction is completed and save labor. Can be done in time. Further, the tightening confirmation and inspection of the nut fastening in the maintenance work can be similarly performed with labor saving and in a short time. In addition, the visual stimulus that changes its state from the original shape to a level that can be visually recognized by general vision, tactile stimulus by response at the time of breaking of the connecting part and auditory stimulus by sound at the time of breakage, The nut tightening completion state can be memorized strongly to increase the sense of incongruity during incomplete tightening, and to ensure that the operator tightens more than a predetermined tightening torque during tightening. can do.

The road incidental facility according to the present invention is characterized in that, as a change from the original shape, the upper nut portion is detached and the lower nut portion is left.
According to this, the appearance of the shape in which only the lower nut portion is left screwed to the bolt without the upper nut portion and the appearance of the shape in which the upper nut portion is screwed to the bolt together with the lower nut portion are greatly increased. Due to this difference, it is possible to give a strong visual stimulus to the operator to make it easy to confirm the tightening, and to further improve the accuracy of the tightening confirmation and further reduce the labor and time required for the tightening confirmation.

The road incidental facility according to the present invention is characterized in that, as a change from the original shape, the mark line on the side surface of the upper nut part and the mark line on the side surface of the lower nut part are shifted.
According to this, a strong visual stimulus is given to the operator by a large difference between the appearance of the state in which the mark line on the side surface of the upper nut part and the mark line on the side surface of the lower nut part are shifted and the appearance not shifted. Therefore, it is possible to make it easier to confirm the tightening, and to further improve the accuracy of the tightening confirmation and further reduce the labor and time required for the tightening confirmation.

The road incidental facility according to the present invention is characterized in that the colored side surface of the upper stage nut portion and the colored side surface of the lower stage nut portion are shifted from each other as a change from the original shape.
According to this, due to the large difference in appearance between the colored side of the upper nut portion and the colored side surface of the lower nut portion and the appearance of the non-shifted state, a strong visual stimulus is given to the operator and tightened. It is possible to make it easier to check, and it is possible to further improve the accuracy of tightening confirmation and further reduce the labor and time required for tightening confirmation.

The road incidental facility construction method of the present invention includes a step of screwing the nut into a bolt inserted through the facility construction material, and rotating the upper nut portion to tighten the nut at a predetermined tightening torque or more. And pressing the lower nut portion against the equipment construction material, breaking the connecting portion to separate the upper nut portion from the lower nut portion, and detaching the upper nut portion from the bolt; It is characterized by providing.
According to this, the nut fastening portion in a state where the upper nut portion is detached and is fastened by the lower nut portion can be formed with a smooth work flow.

The road incidental facility construction method of the present invention includes a step of screwing the nut into a bolt inserted through the facility construction material, and rotating the upper nut portion to tighten the nut at a predetermined tightening torque or more. The lower nut portion is pressed against the equipment construction material, the connecting portion is broken to separate the upper nut portion from the lower nut portion, and a mark line on the side surface of the upper nut portion and the lower nut portion And a step of shifting a mark line on the side surface of the first side.
According to this, the nut fastening part in the state where the mark line on the side surface of the upper nut part and the mark line on the side surface of the lower nut part are shifted can be formed with a smooth work flow.

The road incidental facility construction method of the present invention includes a step of screwing the nut into a bolt inserted through the facility construction material, and rotating the upper nut portion to tighten the nut at a predetermined tightening torque or more. The lower nut portion is pressed against the equipment construction material, the connecting portion is broken to separate the upper nut portion from the lower nut portion, and the colored side surfaces of the upper nut portion and the lower nut portion are colored. And a step of shifting the side surface.
According to this, the nut fastening location in a state where the colored side surface of the upper nut portion and the colored side surface of the lower nut portion are shifted can be formed with a smooth work flow.

In the method for constructing a road incidental facility according to the present invention, as the nut, an approximately C-shaped stopper is inserted into the groove portion between the upper nut portion and the lower nut portion so as to protrude outward. In use, in the screwing step and the tightening step, entry of the wrench head engaged with the upper nut portion in the bolt axial direction is restricted by the stopper.
According to this, for example, when the socket of the socket wrench is fitted to the upper nut portion and the nut is tightened, the socket corresponding to the wrench head can be prevented from entering the bolt shaft direction and fitting into the lower nut portion. Since the wrench head is engaged only with the upper nut portion, the corresponding connecting portion can be reliably broken by tightening with a predetermined tightening torque or more.

The nut of the present invention is a nut used in the road incidental facility of the present invention, and the upper nut portion, the lower nut portion, and the groove portion between the upper nut portion and the lower nut portion, and the upper nut portion and the lower nut portion. A connecting portion for connecting the lower nut portion, and a substantially C-shaped stopper for restricting wrench head entry, which is engaged with the groove portion between the upper nut portion and the lower nut portion so as to protrude outward. And the strength of the connecting portion is set so as to be broken by tightening at a predetermined tightening torque or more.
According to this, for example, when the socket of the socket wrench is fitted to the upper nut portion and the nut is tightened, the socket corresponding to the wrench head can be prevented from entering the bolt shaft direction and fitting into the lower nut portion. Since the wrench head is engaged only with the upper nut portion, the corresponding connecting portion can be reliably broken by tightening with a predetermined tightening torque or more.

The road incidental facility management device of the present invention is the road incidental facility management device of the present invention arranged around a road, and the nut fastening portion of the road incidental facility imaged while moving along the road A storage unit that stores an image including the position corresponding to the position information of the nut fastening portion and the imaging date of the image, and a control to read and display the image from the storage unit in response to a request to read the image And a control unit.
According to this, each image stored in the storage unit records the external shape of the nut, that is, whether or not the nut is changed from the original shape, together with the position information and the imaging date, and therefore the nut fastening from the external shape of the nut. Check the tightening of the location, and if there is a location where the external shape of the nut has not changed from the original shape, use the location information corresponding to the image, and if necessary, the operator will perform maintenance to the location where the tightening is insufficient It can be performed. In addition, it is possible to rationalize maintenance management of the nut fastening, such as making it possible to easily create a management record based on data stored in the storage unit.

  According to the present invention, the tightening confirmation of the nut fastening of the equipment construction material can be performed with high accuracy, and it is possible to reliably prevent the operator from overlooking the human error at the time of the nut fastening, and to save the labor for confirming the tightening of the nut fastening. It can be done in a short time.

The perspective view which shows the highway which has the sound insulation wall which is the road incidental equipment of 1st Embodiment by this invention. (A) is sectional drawing which shows the periphery of the attachment base part of the sound insulation wall which is the road incidental equipment of 1st Embodiment, (b) is a top view of the attachment base part. (A) is the perspective view which shows the nut of the 1st example used for the sound insulation wall which is the road incidental equipment of 1st Embodiment, (b) is the top view, (c) is the front view, (d) is the A -A sectional drawing, (e) is the BB sectional drawing. (A)-(c) is a perspective explanatory drawing which shows the procedure of the nut fastening by the nut of a 1st example. (A) is a perspective view which shows the nut of the 2nd example used for the sound insulation wall which is the road incidental equipment of 2nd Embodiment by this invention, (b) is a perspective view which shows the state after nut fastening by the nut of the 2nd example. . (A) is a perspective view which shows the nut of the 3rd example used for the sound insulation wall which is the road incidental equipment of 3rd Embodiment by this invention, (b) is a perspective view which shows the state after nut fastening by the nut of the 3rd example. . (A) is the perspective view which shows the nut of the modification of the 1st example, (b) is the top view, (c) is the front view, (d) is the CC sectional drawing, (e) is the D -D sectional drawing, (f) is the EE sectional drawing. The partial cross section front view which shows the state by which the socket wrench was fitted by the nut of the modification of the 1st example. (A)-(e) is perspective explanatory drawing which shows the procedure of the nut fastening by the nut of the modification of a 1st example. (A) Plane explanatory drawing which shows the state which is imaging the road incidental equipment of 3rd Embodiment from the management vehicle, (b) is a conceptual diagram which shows the nut fastening location in a captured image. The block diagram which shows the hardware constitutions of the management apparatus of the road incidental equipment by this invention Explanatory drawing which shows the data of the captured image memorize | stored in the video database of the management apparatus of the road incidental equipment by this invention.

[Road Attached Equipment and Construction Method of the First Embodiment]
The road incidental facility according to the first embodiment of the present invention is an installation facility for a sound insulation wall 200 provided on an upper surface 103 of a side wall rail 102 located on both sides of a road 101 on a highway 100 as shown in FIGS. 1 and 2. . In this facility, the sound insulation wall 200 is disposed by being fitted in the vicinity of the side end of the support column 201 in which the concave grooves 202 are formed on both sides along the height direction, and the lower end of the support column 201 corresponds to the facility construction material. A base plate 203 is integrally provided. The base plate 203 is fastened to the upper surface 103 of the side wall height column 102 by the lower nut portion 12 of the nut 10 of the first example.

  In the nut 10 of the first example, as shown in FIG. 3, an upper nut portion 11 and a lower nut portion 12 are arranged with a space therebetween, and in a groove portion 14 between the upper nut portion 11 and the lower nut portion 12, It has the original form in which the connection part 13 which connects the upper stage nut part 11 and the lower stage nut part 12 is provided. A pair of connecting portions 13 are formed at opposing positions, and the pair of connecting portions 13 and 13 are formed to extend from the screw holes 15 in the radial direction. The pair of connecting portions 13 and 13 are set to have a strength to break when the upper nut portion 11 is rotated with respect to the lower nut portion 12 so as to apply a predetermined torque or more.

  1 and 2, the bolt 51 is driven through the hole into the base plate 203 placed on the upper surface 103 of the side wall rail 102, and is screwed into the bolt 51. The nut 10 is tightened with a predetermined tightening torque or more to break the connecting portion 13, and the remaining lower nut portion 12 causes the base plate 203 to be attached to the upper surface of the side wall column 102 with a tightening force equal to or greater than the predetermined tightening torque. 103 is fastened. The support column 201 is fixed by fastening and fixing the base plate 203, and the sound insulation wall 200 is fitted in the concave groove 202 of the support column 201, and the sound insulation wall 200 is attached on the side wall rail 102.

  When the installation equipment for the sound insulation wall 200 is attached and constructed in this manner, the base plate 203 as the equipment construction material is placed at a predetermined position on the upper surface 103 of the side wall column 102 as shown in FIGS. 4 (a) and 4 (b). The bolt 51 is driven into and inserted into the hole in the base plate 203, and the nut 10 is screwed into the bolt 51 after the washer 52 is externally inserted. The nut 10 is screwed by fitting a wrench to the upper nut portion 11 and turning it. It should be noted that a nylon coat, a highly reactive fixing agent, or the like may be applied to the screw hole 15 of the nut 10 to increase the loosening prevention effect in the fastening state.

  Further, by rotating the upper nut portion 11, the nut 10 is tightened with a predetermined tightening torque or more, the lower nut portion 12 is pressed against the base plate 203, the connecting portion 13 is broken, and the upper nut portion 11 is moved to the lower nut portion. 12 (see FIG. 4B). As a result of this breakage, connection breakage portions 111 and 121 are formed in the upper nut portion 11 and the lower nut 12, respectively.

  Thereafter, as shown in FIG. 4 (c), the upper nut portion 11, which is separated and made rotatable relative to the lower nut portion 12, is turned away from the bolt 51 by removing it from the bolt 51 and removed. The nut fastening structure in the first embodiment is formed by removing from the nut fastening portion. And this nut fastening structure is formed in the required location of the installation equipment of the sound insulation wall 200, and the installation equipment of the sound insulation wall 200 of 1st Embodiment is constructed | assembled.

  In the installation facility of the sound insulation wall 200, the appearance of the state in which the nut 10 is tightened with a predetermined tightening torque or more is removed by removing the upper nut portion 11 from the bolt 51, and the lower nut portion 12 is left on the bolt 51. Thus, the appearance of the nut 10 has been greatly changed, and the appearance changed from the original shape can be visually recognized from a position apart from a predetermined distance, such as 4 m or more, without being locally confirmed. .

  According to the road incidental facility and the construction method therefor according to the first embodiment, the external appearance of the nut 10 that has been tightened with a predetermined tightening torque or more has changed from the original shape of the nut 10. Fastening confirmation of fastening can be performed with high accuracy, and it is possible to reliably prevent oversight of human errors such as forgetting to fasten an operator when fastening a nut, and to improve construction reliability. In addition, since this appearance can be visually recognized from a position far away from a predetermined distance, there is no need for troublesome troubles of localizing details, and it is possible to check and tighten the nuts after construction is completed and save labor. Can be done in time. Further, the tightening confirmation and inspection of the nut fastening in the maintenance work can be similarly performed with labor saving and in a short time.

  In particular, in the first embodiment, the appearance of the state in which the upper nut portion 11 is not provided and only the lower nut portion 12 is screwed to the bolt 51 and the upper nut portion 11 is screwed to the bolt 51 together with the lower nut portion 12. The large difference in the appearance of the combined state can give a strong visual stimulus to the operator to make it easy to check the tightening, further improve the accuracy of the tightening check, reduce the labor and time required for the tightening check. Further reduction can be achieved.

  In addition, the visual stimulus that changes its state from the original shape to a level that can be visually recognized by general vision, tactile stimulus by response at the time of breaking of the connecting part and auditory stimulus by sound at the time of breakage, The nut fastening completion state can be memorized strongly and the feeling of incongruity at the time of incomplete fastening can be increased, and the operator can more securely perform the predetermined operation during the fastening operation regardless of the skill level of the operator. Tightening can be performed with a tightening torque or higher. In addition, it is possible to prevent loosening due to excessive tightening due to breakage of the connecting portion 13 at a predetermined tightening torque or more, and appropriate torque management for nut tightening is possible.

[Road Attached Equipment and Construction Method of Second Embodiment]
The road incidental equipment of the second embodiment according to the present invention is basically the installation equipment of the sound insulation wall 200 similar to that of the first embodiment, but the nut used in the nut fastening structure is the nut 10a of the second example shown in FIG. It has become. The nut 10a of the second example is a pair of connections that connect the upper nut portion 11 and the lower nut portion 12 in the upper nut portion 11, the lower nut portion 12, and the groove portion 14 between the upper nut portion 11 and the lower nut portion 12. It is the same as the nut 10 of the first example of the first embodiment in that it has the portions 13 and 13 and the pair of connecting portions 13 and 13 are formed so as to extend from the screw holes 15 in the radial direction.

  The nut 10a of the second example is originally provided with a pair of mark lines 112 and 112 on opposite side surfaces corresponding to the side surface of the portion where the connecting portions 13 and 13 of the upper nut portion 11 are formed. In addition, a pair of mark lines 122 and 122 are provided on opposite side surfaces corresponding to the side surfaces of the lower nut portion 12 where the connecting portions 13 and 13 are formed, and the mark lines 112 and 122 are connected to the connecting portion 13. The nut 10 is different from the nut 10 of the first example in that it is drawn so as to be continuous with the outer surface of the nut.

  In the installation facility of the sound insulation wall 200 to which the nut 10a is fastened with the nut 10a of the second example, the bolt 51 inserted through the base plate 203 of the upper surface 103 of the side wall rail 102 is screwed from above the washer 52 at the nut fastening portion. The nut 10a is tightened with a predetermined tightening torque or more, and the connecting portion 13 is broken to form the connecting broken portions 111 and 121. Further, as a change from the original shape of the nut 10a, the upper nut portion 11 is shifted from the lower nut portion 12 while both the upper nut portion 11 and the lower nut portion 12 are screwed to the bolt 51. The mark line 112 on the side surface of the upper nut part 11 and the mark line 122 on the side surface of the lower nut part 12 are shifted from each other.

  By tightening the nuts of the upper nut portion 11 and the lower nut portion 12, the base plate 203 is fastened to the upper surface 103 of the side wall column 102 with a tightening force equal to or greater than a predetermined tightening torque, as in the first embodiment. The support column 201 is fixed by fastening and fixing. Furthermore, the sound insulation wall 200 is fitted into the concave groove 202 of the support column 201, and the sound insulation wall 200 is attached on the side wall height column 102.

  Thus, when installing and constructing the installation equipment for the sound insulation wall 200, the base plate 203 as the equipment construction material is placed at a predetermined position on the upper surface 103 of the side wall height column 102, and the bolt 51 is driven into the hole in the base plate 203. After inserting the washer 52 into the bolt 51 and inserting the wrench into the upper nut portion 11, the nut 10a is screwed.

  Further, by rotating the upper nut portion 11, the nut 10 a is tightened with a predetermined tightening torque or more, the lower nut portion 12 is pressed against the base plate 203, and the connecting portion 13 is broken to become the connecting broken portions 111 and 121. Thus, the upper nut portion 11 is separated from the lower nut portion 12. After breaking, the upper nut portion 11 is further rotated to some extent, and the mark line 112 on the side surface of the upper nut portion 11 and the mark line 122 on the side surface of the lower nut portion 12 are shifted and arranged, and the nut fastening structure in the second embodiment Is formed. And this nut fastening structure is formed in the required location of the installation equipment of the sound insulation wall 200, and the installation equipment of the sound insulation wall 200 of 2nd Embodiment is constructed | assembled.

  In the installation facility of the sound insulation wall 200, the appearance when the nut 10a is tightened with a predetermined tightening torque or more is such that the mark line 112 on the side surface of the upper nut portion 11 and the mark line 122 on the side surface of the lower nut portion 12 are shifted. The mark line 112 and the mark line 122 are greatly changed from the original shape of the nut 10a in which the mark line 112 and the mark line 122 are continuous in a straight line, and the appearance changed from this original shape is localized from a position separated by a predetermined distance or more such as 4 m or more. Even without confirmation, it can be visually recognized in a global view.

  In the road ancillary equipment and the construction method thereof according to the second embodiment, a state in which the marking line 112 on the side surface of the upper nut portion 11 and the marking line 122 on the side surface of the lower nut portion 12 are aligned with the appearance in a straight line. Due to the significant difference in appearance, it is possible to give a strong visual stimulus to the operator to make it easy to check the tightening, and to further improve the accuracy of the tightening confirmation and further reduce the labor and time required for the tightening confirmation. be able to. In particular, when a pair of mark lines 112 and 112 and mark lines 122 and 122 are provided on the opposite side surface of the upper nut part 11 and the opposite side surface of the lower nut part 12, when imaged from one direction visually or as described later It is possible to confirm either of them. In addition, there exists an effect corresponding from the structure corresponding to 1st Embodiment.

[Road Attached Equipment and Construction Method of Third Embodiment]
The road incidental equipment of the third embodiment according to the present invention is basically the installation equipment of the sound insulation wall 200 similar to that of the first embodiment, but the nut used in the nut fastening structure is the nut 10b of the third example shown in FIG. It has become. The nut 10b of the third example is also a pair of connections for connecting the upper nut portion 11 and the lower nut portion 12 in the upper nut portion 11, the lower nut portion 12, and the groove portion 14 between the upper nut portion 11 and the lower nut portion 12. It is the same as the nut 10 of the first example of the first embodiment in that it has the portions 13 and 13 and the pair of connecting portions 13 and 13 are formed so as to extend from the screw holes 15 in the radial direction.

  And in the original form, the nut 10b of the third example has a pair of colored side surfaces 113 and 113 corresponding to the side surfaces where the connecting portions 13 and 13 of the upper nut portion 11 are formed. The opposing side surface corresponding to the side surface of the lower nut portion 12 where the connecting portions 13 and 13 are formed is a pair of colored side surfaces 123 and 123 so that the colored side surface 113 and the colored side surface 123 are flush with each other. The nut 10 is different from the nut 10 of the first example in that the nut 10 is disposed.

  In the installation facility of the sound insulation wall 200 in which the nut fastening is performed with the nut 10b of the third example, the bolt 51 inserted through the base plate 203 on the upper surface 103 of the side wall rail 102 is screwed from above the washer 52 at the nut fastening portion. The nut 10b is tightened at a predetermined tightening torque or more, and the connecting portion 13 is broken to form the connecting broken portions 111 and 121. Further, as a change from the original shape of the nut 10b, the upper nut portion 11 is shifted from the lower nut portion 12 while both the upper nut portion 11 and the lower nut portion 12 are screwed to the bolt 51. The colored side surface 113 of the upper nut portion 11 and the colored side surface 123 of the lower nut portion 12 are shifted from each other.

  By tightening the nuts of the upper nut portion 11 and the lower nut portion 12, the base plate 203 is fastened to the upper surface 103 of the side wall column 102 with a tightening force equal to or higher than a predetermined tightening torque, as in the first and second embodiments. The support column 201 is fixed by fastening and fixing the base plate 203. Furthermore, the sound insulation wall 200 is fitted into the concave groove 202 of the support column 201, and the sound insulation wall 200 is attached on the side wall height column 102.

  Thus, when installing and constructing the installation equipment for the sound insulation wall 200, the base plate 203 as the equipment construction material is placed at a predetermined position on the upper surface 103 of the side wall height column 102, and the bolt 51 is driven into the hole in the base plate 203. After inserting the washer 52 into the bolt 51, the nut 10b is screwed into the upper nut portion 11 by fitting a wrench and turning it.

  Further, by rotating the upper nut portion 11, the nut 10 b is tightened with a predetermined tightening torque or more, the lower nut portion 12 is pressed against the base plate 203, and the connecting portion 13 is broken to become the connecting broken portions 111 and 121. Thus, the upper nut portion 11 is separated from the lower nut portion 12. After breaking, the upper nut portion 11 is further rotated to some extent, and the colored side surface 113 of the upper stage nut portion 11 and the colored side surface 123 of the lower stage nut portion 12 are shifted to form the nut fastening structure in the third embodiment. . And this nut fastening structure is formed in the required location of the installation equipment of the sound insulation wall 200, and the installation equipment of the sound insulation wall 200 of 3rd Embodiment is constructed | assembled.

  In the installation facility of the sound insulation wall 200, the appearance of the state in which the nut 10b is tightened with a predetermined tightening torque or more is arranged such that the colored side surface 113 of the upper nut portion 11 and the colored side surface 123 of the lower nut portion 12 are shifted, The original shape of the nut 10b in which the colored side surface 113 and the colored side surface 123 are flush with each other is greatly changed, and the appearance changed from this original shape is locally confirmed from a position separated by a predetermined distance, for example, 4 m or more. Even without this, visual recognition is possible in a global view.

  In the road incidental facility and the construction method thereof according to the third embodiment, the colored side surface 113 of the upper nut portion 11 and the colored side surface 123 of the lower nut portion 12 face in the same direction as the appearance in a state where they are shifted in different directions. Due to the significant difference in the external appearance, it is possible to give a strong visual stimulus to the operator and make it easy to check the tightening, further improve the accuracy of the tightening check, labor and time required for the tightening check Can be further reduced. In particular, by providing the opposite colored side surfaces 113 and 113 of the upper nut portion 11 and the opposite colored side surfaces 123 and 123 of the lower nut portion 12, it is always necessary to check either one when viewing from one direction or taking an image as described later. It becomes possible to confirm. In addition, there exists an effect corresponding from the structure corresponding to 1st Embodiment.

[Modifications of First to Third Embodiments]
In addition to each invention and each embodiment, the invention disclosed in this specification is specified by changing these partial configurations to other configurations disclosed in this specification within the applicable range, or these It includes those specified by adding other configurations disclosed in this specification to the configuration, or those obtained by deleting these partial configurations to the extent that partial effects can be obtained and specifying them as a superordinate concept. The following modifications are also included.

  For example, as a modification of the nut 10 of the first example, the nut 10m shown in FIGS. 7 to 9 may be used. Similar to the nut 10 of the first example, the nut 10m according to the modified example includes an upper nut portion 11 and a lower nut portion 11 in an upper nut portion 11, a lower nut portion 12, and a groove portion 14 between the upper nut portion 11 and the lower nut portion 12. 12, and a pair of connecting portions 13, 13 are formed so as to extend in the radial direction from the screw holes 15, respectively. The difference is that the stopper 16 is engaged.

  The stopper 16 is formed in a substantially C shape by plastic, rubber, metal, or the like, and a notch 162 and a notch 163 are respectively formed in the radial direction from positions opposed to the central hole 161. The notch 162 reaches the outer periphery and the formation portion is opened, and the notch 163 is formed to a midway position without reaching the outer periphery. The stopper 16 is inserted into the groove portion 14 so that the notch 162 enters the one connecting portion 13, the one connecting portion 13 is inserted into the notch 163, and the other connecting portion 13 is engaged into the notch 162. Are arranged as follows. In this arrangement state, since the outer diameter of the stopper 16 is formed larger than that of the upper nut portion 11, the stopper 16 is disposed so as to protrude outward from the outer periphery of the upper nut portion 11 and the lower nut portion 12. .

  When the nut 10m of this modification is used, for example, when the nut 10m is screwed and tightened with the socket wrench 60 (see FIGS. 8 and 9), the top of the washer 52 that is externally attached to the bolt 51 inserted in the base plate 203 is used. Then, the nut 10m is screwed, the socket 61 of the socket wrench 60 is fitted into the upper nut portion 11 and engaged, and the socket wrench 60 is rotated to rotate the upper nut portion 11 to thereby turn the nut 10m into the bolt 51. Screw in. At this time, the tip of the socket 61 comes into contact with the stopper 16 to restrict the socket 61 from entering the lower nut portion 12.

  Further, by rotating the upper nut portion 11 with the socket wrench 60, the nut 10m is tightened with a predetermined tightening torque or more, the lower nut portion 12 is pressed against the base plate 203, and the connecting portion 13 is broken to break the upper nut portion 11. Is separated from the lower nut portion 12. Also at this time, the tip of the socket 61 abuts against the stopper 16 and restricts the socket 61 from entering the lower nut portion 12, thereby preventing the lower nut portion 12 from rotating and the upper nut portion 11. It is possible to securely rotate only the bolt, tighten more than a predetermined tightening torque, and reliably break. Even when a wrench other than the socket wrench 60 is used, it is possible to restrict the entry of the wrench head so that the wrench head is securely engaged only with the upper nut portion 11 and to be tightened or broken more than a predetermined tightening torque. is there.

  And, similarly to the first embodiment, by removing the upper nut portion 11, a nut fastening structure fastened by the lower nut portion 12 of the modified nut 10 m and a road incidental facility provided with the nut fastening structure at a required location are constructed. Is done. The nut 10a of the second example and the nut 10b of the third example may be modified nuts using the same stopper 16.

  Moreover, since the nut fastening location of the above-mentioned road incidental equipment can be visually recognized in a global view, an image including the nut fastening location is captured, the captured image is stored in the storage unit of the management device, and this image is read out. Then, management may be performed by confirming from the image whether or not the nut fastening portion is tightened with a predetermined tightening torque or more. FIG. 10A shows a state in which an image including the nut fastening portion of the installation facility of the sound insulation wall 200 is captured while moving along the road 101 by the management vehicle 70, and the video of the moving image captured in this way is shown. Alternatively, the still image captured intermittently is stored in the storage unit of the management device. In the figure, S is the imaging direction. The image stored in the storage unit shows a state like the nut 10b of the third example of FIG. 10B, for example, and the colored side surfaces 113 and 123 of the right end nut 10b are not shifted from this image, It is confirmed that there is a defect that the tightening torque is not higher than the predetermined tightening torque.

  Furthermore, it is preferable to use the management apparatus 20 shown in FIG. In the configuration of FIG. 11, a management device 20, an imaging device 30 such as a camera that captures an image including a nut fastening portion of a road incidental facility, and a GPS device 40 that grasps the position of the management vehicle 70 from the global positioning network are provided. The management device 20, the imaging device 30, and the GPS device 40 are mounted on the management vehicle 70.

  The management device 20 includes a personal computer or the like, and includes a control unit 21 such as a CPU, a storage unit 22 such as a ROM and a hard disk, an input unit 23 such as a mouse and a keyboard, a display unit 25 such as a liquid crystal display, and an imaging device connected thereto. 20, a video input unit 25 such as a USB port to which video is input, a position acquisition unit 26 that acquires real-time position information of the management vehicle 70 input from the GPS device 40 connected via the USB port, and the like. And a calendar unit 27 that counts the time.

  The storage unit 22 of the management device 20 includes a video database 221, and the video database 221 stores real-time images acquired from the GPS device 40 for each captured image such as each frame of a video input from the imaging device 20. The positional information of the management vehicle 70 and the imaging date and time acquired in real time from the calendar unit 27 are stored in association with each other. The captured image is stored in the video database 221 according to the control program stored in the storage unit 22 by the control unit 21 according to the input of the captured image such as each frame and the position information and calendar by the corresponding GPS device 40. The imaging date / time of the unit 27 is recognized and stored in correspondence. Control is performed so that the image of the video database 221 stored in the storage unit 22 is read by the control unit 21 and displayed on the display unit 25 in response to an image read request. Accordingly, each image stored in the video database 221 records the position information, the date and time of imaging, and whether the nut appearance shape, that is, whether the nut has changed from its original shape.

  By using the management device 20, the tightening confirmation of the nut fastening location is confirmed from the image stored in the video database 221, and the operator performs maintenance toward the location where the fastening is insufficient as necessary using the position information. Can do. In addition, it is possible to rationalize the maintenance management of the nut fastening, such as making it possible to easily create a management record based on the data stored in the video database 221.

  Furthermore, the image analysis program is stored in the storage unit 22, and the control unit 21 of the management device 20 extracts a nut fastening portion having a predetermined feature point from the image according to the image analysis program, and the pixel region of the nut fastening region It is also possible to have a configuration in which a similarity is calculated by comparing with a template in an OK state or an NG state, and a nut fastening location for NG determination and its position information are extracted from the similarity and displayed.

  Moreover, in the said embodiment, although the installation installation of the sound insulation wall 200 was demonstrated as an example as a road incidental installation, the road incidental installation in this invention is arrange | positioned around the road, and it is appropriate if a nut fastening is used, For example, installation equipment for blindfolds, installation equipment for guardrails, installation equipment for signs, and the like are included. Moreover, the connection part in this invention can be used as the appropriate connection part by which intensity | strength was set so that it might fracture | rupture by the tightening more than predetermined | prescribed tightening torque, and is appropriate other than the said embodiment. Further, the nut in the present invention can be a nut having a shape other than a hexagonal nut.

  Further, in the second and third embodiments, the mark lines 112 and 122 and the colored side surfaces 113 and 123 are provided as a pair on the opposite side surfaces. It can also be provided on every other side. However, it is preferable that the mark lines 112 and 122 and the colored side surfaces 113 and 123 are always provided so as to be confirmed from both sides of the screwed nuts 10a and 10b. Therefore, it is preferable to provide a pair as in the embodiment. In addition, the mark line and the colored side surface in the present invention can be appropriately recognized so that the arrangement shifted from each other can be recognized. For example, it is preferable that the colored side surfaces are different from each other. The mark line of the upper nut portion 11 and the lower nut portion 12 may be continuous in a curved shape.

  INDUSTRIAL APPLICABILITY The present invention can be used for road incidental facilities in which nut fastening such as sound insulation walls, blindfolds, guardrails, and signage facilities are used.

DESCRIPTION OF SYMBOLS 10, 10a, 10b ... Nut 11 ... Upper nut part 12 ... Lower nut part 111, 121 ... Connection fracture | rupture part 112, 122 ... Mark line 113, 123 ... Colored side surface 13 ... Connection part 14 ... Groove part 15 ... Screw hole 16 ... Stopper DESCRIPTION OF SYMBOLS 161 ... Central hole 162, 163 ... Cut 20 ... Management equipment of road incidental equipment 21 ... Control part 22 ... Storage part 221 ... Video database 23 ... Input part 24 ... Display part 25 ... Video input part 26 ... Position acquisition part 27 ... Calendar Part 30 ... Imaging device 40 ... GPS device 51 ... Bolt 52 ... Washer 60 ... Socket wrench 61 ... Socket 70 ... Management vehicle S ... Imaging direction 100 ... Highway 101 ... Road 102 ... Side wall rail 103 ... Upper surface 200 ... Sound insulation wall 201 ... Support column 202 ... concave groove 203 ... base plate

Claims (10)

An upper nut portion, a lower nut portion, and a connecting portion for connecting the upper nut portion and the lower nut portion at a groove between the upper nut portion and the lower nut portion, and having a predetermined tightening torque or more. The lower nut part of the nut where the connecting part is broken by tightening,
It is screwed into a bolt inserted into the equipment construction material and tightened with a predetermined tightening torque or more.
The external appearance of the state of being tightened at the predetermined tightening torque or more has changed from the original shape of the nut, and the external appearance changed from the original shape can be visually recognized from a global view from a position separated by a predetermined distance or more. A road incidental facility characterized by comprising a configuration.   The road incidental facility according to claim 1, wherein the upper nut portion is detached and the lower nut portion is left as a change from the original shape.   The road incidental facility according to claim 1, wherein the mark line on the side surface of the upper nut part and the mark line on the side surface of the lower nut part are shifted as the change from the original shape.   The road incidental facility according to claim 1, wherein the colored side surface of the upper stage nut portion and the colored side surface of the lower stage nut portion are shifted from each other as a change from the original shape. A method for constructing a road incidental facility according to claim 2,
A step of screwing the nut into a bolt inserted through the equipment construction material;
By rotating the upper nut portion, the nut is tightened with a predetermined tightening torque or more, the lower nut portion is pressed against the equipment construction material, and the connecting portion is broken to connect the upper nut portion to the lower step. Separating from the nut portion;
A method for constructing a road incidental facility, comprising: a step of detaching the upper nut portion from the bolt. A method for constructing a road incidental facility according to claim 3,
A step of screwing the nut into a bolt inserted through the equipment construction material;
By rotating the upper nut portion, the nut is tightened with a predetermined tightening torque or more, the lower nut portion is pressed against the equipment construction material, and the connecting portion is broken to connect the upper nut portion to the lower step. A method for constructing a road incidental facility, comprising: a step of separating from a nut portion and shifting a mark line on a side surface of the upper nut portion and a mark line on a side surface of the lower nut portion. A method for constructing a road incidental facility according to claim 4,
A step of screwing the nut into a bolt inserted through the equipment construction material;
By rotating the upper nut portion, the nut is tightened with a predetermined tightening torque or more, the lower nut portion is pressed against the equipment construction material, and the connecting portion is broken to connect the upper nut portion to the lower step. A method for constructing a road incidental facility, comprising: a step of separating the colored side surface of the upper nut portion and the colored side surface of the lower nut portion from the nut portion. A method for constructing a road incidental facility according to any one of claims 5 to 7,
As the nut, the groove portion between the upper nut portion and the lower nut portion is used so that a substantially C-shaped stopper is engaged so as to protrude to the outer periphery,
In the screwing step and the tightening step, the stopper is used to restrict entry of the wrench head engaged with the upper nut portion in the bolt axis direction. It is a nut used for the road incidental facility according to claim 1,
An upper nut,
A lower nut,
A connecting portion that connects the upper nut portion and the lower nut portion at a groove between the upper nut portion and the lower nut portion;
A substantially C-shaped stopper for restricting wrench head entry that is engaged so as to protrude to the outer periphery in the groove between the upper nut portion and the lower nut portion;
A nut characterized in that the strength of the connecting portion is set so as to be broken by tightening with a predetermined tightening torque or more. The road auxiliary equipment management device according to any one of claims 1 to 4, which is arranged around a road,
A storage unit that stores an image including a nut fastening portion of a road incidental facility imaged while moving along the road in correspondence with position information of the nut fastening portion and an imaging date of the image;
And a control unit that controls to read and display the image from the storage unit in response to a request to read the image.

Images