JP2019019639A - Traffic lane dividing fence - Google Patents

Abstract

To provide a traffic lane dividing fence which makes it possible to measure not only a fixing force by means of a load cell, but pull-up quantity of the buried bolt by screw-in of a coupler with certainty at the time the fixing force test of a buried bolt.SOLUTION: It is provided with a plurality of fixing columns 1 vertically installed with a first section and a second section spaced from each other, a guard strap 3 which is fixed at both the ends thereof across the fixing columns 1, 1 in pair at a plurality of heights of the fixing column 1, and a connection pipe 34P made of a rigid body which connects ends of guard straps 3 fixed to each of the fixing columns 1. Each of a plurality of the guard straps 3 and each of a plurality of the connection pipes 34P are joined to each other via the fixing column 1 to form a linear body, and also each of a plurality of lines of linear bodies is vertically spaced from each other, so as to constitute a horizontal fence.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a lane division fence that divides an opposite lane of an opposite lane road.

  2. Description of the Related Art In recent years, a so-called jump-out accident has occurred in which a vehicle departs to an opposite lane beyond the lane division structure with respect to a lane division structure that divides the opposite lanes of an opposite lane road.

  Conventionally, as such a lane division structure, a structure in which upper and lower lines are divided by rubber poles or a structure in which concrete blocks are fixed at equal intervals is disclosed. Further, in Patent Document 1, as a road facility that can easily remove a lane separation member for separating a traffic zone from a road as needed, a gutter block installed with an upper surface exposed on the road, What is provided with the lane separation member which will be in the standing state in order to isolate | separate the traffic zone on a road is disclosed. In the side groove block, a drainage groove 7 having a slit opened on the upper surface and a space portion continuous with the slit and enlarged inside is formed in the longitudinal direction. The lane separation member is provided below the main body portion of the lane separation member, and has a fixed portion that can be switched between a state that allows passage through the slit and a state that is positioned in the space and cannot pass through the slit 5. It is said that.

JP 2010-174587 A

  However, in the above conventional structure, there is no blocking means other than the pole installation portion, and the vehicle can easily jump between the poles. On the other hand, a method of placing concrete blocks of a predetermined height at regular intervals is also conceivable. However, in this case, the line of sight is blocked, and there is a problem that the shape of the oncoming road and the presence or absence of the oncoming vehicle cannot be confirmed. . On the other hand, a method of extending the high-strength wire over the entire section is conceivable, but in this case, there is a problem that the amount of protrusion to the road increases due to the deformation of the wire at the time of the collision of the vehicle.

  The present invention has been made in view of such circumstances, and the vehicle cannot easily jump over the lane section, the line of sight is not obstructed, and the amount of protrusion to the road is predetermined when the vehicle collides. Provide a lane division fence that can be reduced to the following.

  In order to solve the above problems, the present invention takes the following measures. It should be noted that the numeral strings or numerals and alphabetical strings described following each component name below are reference symbols for understanding with reference to the drawings shown as examples, thereby limiting or meaning terms and structures. It does not limit.

[1] The lane division fence according to the present invention is
A plurality of fixing posts 1 erected by alternately opening a first section of a predetermined distance corresponding to the guard strap length and a second section of a predetermined distance shorter than the first section distance;
A guard strap 3 having bending elasticity, which is fixed at both ends across a pair of fixing columns 1, 1 at a plurality of heights of the pair of fixing columns 1, 1;
One end of the guard strap 3 fixed to each fixing column 1 is connected to each other at a plurality of heights of another pair of fixing columns 1, 1 erected with a second section, and between the fixing columns 1, 1. A connecting pipe 34P made of a rigid body (having no bending elasticity) fixed over the lane division fence,
Each of the plurality of guard straps 3 and the plurality of connecting pipes 34P are alternately connected via the fixing column 1 to form a linear body, and the plurality of rows of linear bodies are arranged apart from each other in the vertical direction. It is characterized by comprising a horizontal fence.

  In the above configuration, when the traveling body collides in the first section, the multiple rows of guard straps 3 in the first section primarily cushion the impact caused by the collision, and the adjacent first adjacent to the first section on both sides. A plurality of rows of guard straps 3 in the section secondarily cushion the impact caused by the collision.

  On the other hand, when the traveling body collides in the second section, the guard straps 3 of the adjacent first section adjacent to the second section on both sides primarily cushion the impact.

[2] A lane section fence further comprising a plurality of intermediate struts 2 erected at a plurality of locations for further subdividing the first section distance of the pair of fixing struts 1, 1,
The intermediate strut 2 has a plurality of insertion frames through which the guard straps 3 of the respective rows are inserted, separated vertically.
The portion of the guard strap 3 in the linear body is preferably inserted through the insertion frames of the plurality of intermediate struts 2 erected in the first section.

  When the traveling body collides between the subdivision intermediate struts 2 in the first section, a plurality of guard straps 3 in the subsection section primarily cushion the impact caused by the collision, and at both ends of the subsection section. The insertion frame of the intermediate column is locked with the guard strap 3 to secondarily cushion the impact caused by the collision. In addition, a plurality of rows of guard straps 3 connected to the front side of the intermediate struts at both ends provide a third buffer against impact caused by the collision.

  On the other hand, when the traveling body collides in the subdivision section between the fixing column 1 and the intermediate column 2 in the first section, the multiple rows of guard straps 3 in the subsection section primarily cushion the impact caused by the collision. The fixing struts and the intermediate struts at both ends of the subsection section are engaged with the guard strap 3 to secondarily cushion the impact caused by the collision. Furthermore, each of the other guard straps 3 connected to the end of the guard strap 3 of the fixing column via the connecting pipe 34P and the multiple rows of guard straps 3 connected to the front side of the intermediate column are subjected to impact by collision. Tertiary buffer.

[3] The fixing strut 1 stands in a block-like base structure 6 fixed on the floor structure 7 so as to surround the strut bolt 12 erected and fixed by a resin anchor in a cylindrical shape. It is composed of a provided support frame 11 and a plurality of fixing tools 13 that are dispersed and fixed for each predetermined height of the support frame 11 via a buffer sheet.
The end portions of the guard strap 3 are held and fixed by the fixed ends projecting on both sides of each of the plurality of fixing tools 13.
By forming a fracture groove 122D for losing the axial cross section in advance on the outer peripheral surface of at least one of the support frame 11 and the support bolt 12,
At least one of the bending strength of the support frame 11 or the bending strength of the support bolt 12 is:
It is preferably set lower than the holding force of the guard strap by the fixing tool 13, the tensile strength of the guard strap, and the tensile strength of the fixing tool 13.

  According to the above configuration, at least one of the support frame 11 and the support bolt 12 that fixes and supports the guard strap 3 when the traveling body collides with the 3 rows of guard straps and receives an impact force (kgf / kN) of a certain level or more. Even when it is deformed or broken, the fixing tool 13 and the guard strap 3 are not pulled and broken and are not separated at the fixing portion until a predetermined limit impact force is exceeded. That is, the impact due to the collision is buffered at the fixing support portion by causing the support frame 11 or the support bolt 12 to bend or bend before the tensile break of the linear body.

[4] The intermediate strut 2 stands in a block-like base structure 6 fixed on the floor structure 7 by surrounding the strut bolt 12 fixed upright by a resin anchor in a cylindrical shape. It is composed of the provided support frame 20 and insertion frames that are dispersedly formed for each predetermined height of the support frame 20,
The guard strap 3 is inserted into the frame by an insertion frame having a plurality of openings at every predetermined height of the support frame 20,
A fracture groove 122D for losing an axial cross section is formed in advance on the outer peripheral surface of at least one of the support frame 20 and the support bolt 12;
At least one of the bending strength of the support frame 20 or the bending strength of the support bolt 12 is:
It is preferably set lower than the holding force of the guard strap by the fixing tool 13, the tensile strength of the guard strap, and the tensile strength of the fixing tool 13.

  When the traveling body collides with three rows of guard straps and receives an impact force (kgf / kN) of a certain level or more, and at least one of the support frame 20 and the support bolts 12 that fix and support the guard strap 3 is deformed or broken. Even in such a case, the fixing tool 13 and the guard strap 3 are not pulled and broken and are not separated at the fixing unit until a predetermined limit impact force is exceeded. In other words, the impact due to the collision is buffered at the intermediate strut portion by causing bending deformation or bending breakage of the strut frame 20 or the strut bolt 12 before the tensile break of the linear body.

  [5] In any one of the above-described configurations, the horizontal buffer material 4 or the wire for buffering the tensile impact on the linear material is provided at the connection boundary between the guard strap 3 and the connection pipe 34P that are alternately connected as a linear body. It is preferable that at least one of tension adjusting members 5 for adjusting the fixing tension of the material is interposed.

  [6] In the configuration of [5] above, a horizontal buffer material 4 for buffering a tensile impact on the linear material at a connection boundary between the guard strap 3 and the connection pipe 34P that are alternately connected as a linear body, and The tension adjusting material 5 for adjusting the fixing tension of the linear material and the fixing device 13 dispersed and fixed at a predetermined height of the fixing support 1 are interposed in an interconnected state. Lane lane fence as described. The internal space 1S is opened downward or laterally, or can be opened upward, downward, or laterally by a removable cover plate, and the actual amount sensor 3 is attached to and detached from the fixing member 32. It is preferable that it is removably fixed by.

  According to this configuration, the actual amount sensor 3 can be removed and easily calibrated, adjusted, or exchanged.

  According to the lane division fence of the present invention, the vehicle cannot easily jump over the lane division, the line of sight is not obstructed, and the amount of protrusion to the road at the time of the collision of the vehicle can be suppressed to a predetermined value or less. it can.

1 is a front view showing an overall configuration of Example 1. FIG. The enlarged front view of the fixing support | pillar 1 part in FIG. FIG. 3 is a cross-sectional view taken along the line EE in FIG. 2. FIG. 3 is a front view axial sectional view of FIG. 2. The enlarged front view of the intermediate | middle support | pillar 2 part in FIG. FIG. 6 is a cross-sectional view taken along the line FF in FIG. 5. FIG. 6 is a front view axial sectional view of FIG. 5.

  Hereinafter, as a form for carrying out the present invention, it explains with each figure shown as Example 1. FIG. It should be noted that the numeral string or the combination string of numerals and alphabets described after each of the following component names is a reference symbol for understanding with reference to the drawings shown as examples, thereby limiting terms and structures. It does not limit the meaning.

In any embodiment, the lane division fence according to the present invention is
A plurality of fixing posts 1 erected by alternately opening a first section of a predetermined distance corresponding to the guard strap length and a second section of a predetermined distance shorter than the first section distance;
A guard strap 3 having bending elasticity, which is fixed at both ends across a pair of fixing columns 1, 1 at a plurality of heights of the pair of fixing columns 1, 1;
One end of the guard strap 3 fixed to each fixing column 1 is connected to each other at a plurality of heights of another pair of fixing columns 1, 1 erected with a second section, and between the fixing columns 1, 1. A connecting pipe 34P made of a rigid body (having no bending elasticity) fixed over the lane division fence,
Each of the plurality of guard straps 3 and the plurality of connecting pipes 34P are alternately connected via the fixing column 1 to form a linear body, and the plurality of rows of linear bodies are arranged apart from each other in the vertical direction. The side fence is configured with (Fig. 1).

  When the traveling body collides in the first section, a plurality of rows of guard straps 3 in the first section primarily cushions the impact caused by the collision, and a plurality of rows of adjacent first sections adjacent to the first section on both sides. The second guard strap 3 secondarily cushions the impact caused by the collision.

  On the other hand, when the traveling body collides in the second section, the guard straps 3 of the adjacent first section adjacent to the second section on both sides primarily cushion the impact.

  In addition, it further includes a plurality of intermediate struts 2 erected at a plurality of locations that further subdivide the first section distance of the pair of fixing struts 1, 1.

  The intermediate strut 2 has a plurality of insertion frames through which the guard straps 3 of each row are inserted so as to be vertically separated, and a portion of the guard strap 3 in the linear body is a plurality of standing frames in the first section. Is inserted through the insertion frame of the intermediate strut 2.

  When the traveling body collides between the subdivision intermediate struts 2 in the first section, a plurality of guard straps 3 in the subsection section primarily cushion the impact caused by the collision, and at both ends of the subsection section. The insertion frame of the intermediate column is locked with the guard strap 3 to secondarily cushion the impact caused by the collision. In addition, a plurality of rows of guard straps 3 connected to the front side of the intermediate struts at both ends provide a third buffer against impact caused by the collision.

  On the other hand, when the traveling body collides in the subdivision section between the fixing column 1 and the intermediate column 2 in the first section, the multiple rows of guard straps 3 in the subsection section primarily cushion the impact caused by the collision. The fixing struts and the intermediate struts at both ends of the subsection section are engaged with the guard strap 3 to secondarily cushion the impact caused by the collision. Furthermore, each of the other guard straps 3 connected to the end of the guard strap 3 of the fixing column via the connecting pipe 34P and the multiple rows of guard straps 3 connected to the front side of the intermediate column are subjected to impact by collision. Tertiary buffer.

  The fixing column 1 is installed in a block-like base structure 6 fixed on the floor structure 7 so as to stand upright and fixed by a resin anchor, and surround the column bolt 12 in a cylindrical shape. The support frame 11 includes a plurality of fixing tools 13 that are dispersed and fixed at predetermined heights of the support frame 11 through buffer sheets, and each fixing end protrudes from both sides of each of the fixing tools 13. The end of the guard strap 3 is held and fixed.

  At least one of the bending strength of the column frame 11 and the bending strength of the column bolt 12 is formed in advance on the outer peripheral surface of at least one of the column frame 11 and the column bolt 12 by forming a fracture groove 122D that causes the cross section to be lost. This is set lower than the holding force of the guard strap by the fixing device 13, the tensile strength of the guard strap, and the tensile strength of the fixing device 13.

  This breaking groove 122D is formed in the peripheral portion of the breaking replacement bolt 122, and the replacement bolt 122 is coaxially extended in the vicinity of the lower end of the support bolt 12 by a joint nut 12C (FIG. 4). This structure is the same in the intermediate strut (FIG. 7).

  When a traveling body collides with three rows of guard straps and receives an impact force (kgf / kN) of a certain level or more, at least one of the support frame 11 and the support bolts 12 fixing and supporting the guard strap 3 is deformed or broken. Even in such a case, the fixing tool 13 and the guard strap 3 are not pulled and broken and are not separated at the fixing unit until a predetermined limit impact force is exceeded. That is, the impact due to the collision is buffered at the fixing support portion by causing the support frame 11 or the support bolt 12 to bend or bend before the tensile break of the linear body.

  The intermediate support column 2 is installed in a block-like base structure 6 fixed on the floor structure 7 so as to stand upright and fixed by a resin anchor, and surround the support bolt 12 in a cylindrical shape. It is comprised from the support | pillar frame 20 and the insertion frame distributedly formed for every predetermined | prescribed height of the support | pillar frame 20. As shown in FIG.

  The guard strap 3 is inserted into the frame by an insertion frame having a plurality of openings at every predetermined height of the support frame 20 (FIGS. 6 and 7).

  On at least one of the outer peripheral surfaces of the support frame 20 and the support bolt 12, a fracture groove 122 </ b> D that causes the cross section to be lost is formed in advance. Accordingly, at least one of the bending strength of the support frame 20 and the bending strength of the support bolt 12 is set lower than the holding strength of the guard strap by the fixing device 13, the tensile strength of the guard strap, and the tensile strength of the fixing device 13. Is done.

  When the traveling body collides with three rows of guard straps and receives an impact force (kgf / kN) of a certain level or more, and at least one of the support frame 20 and the support bolts 12 that fix and support the guard strap 3 is deformed or broken. Even in such a case, the fixing tool 13 and the guard strap 3 are not pulled and broken and are not separated at the fixing unit until a predetermined limit impact force is exceeded. In other words, the impact due to the collision is buffered at the intermediate strut portion by causing bending deformation or bending breakage of the strut frame 20 or the strut bolt 12 before the tensile break of the linear body.

  At the connection boundary between the guard strap 3 and the connecting pipe 34P, which are alternately connected as a linear body, a horizontal buffer 4 for buffering a tensile impact on the linear material, or a tension adjustment for adjusting the fixing tension of the linear material At least one of the materials 5 is interposed.

  The strap ends on one side or both sides of the guard strap 3 of the embodiment are provided via a horizontal cushioning material 4 that cushions a tensile impact on the linear material, and a tension adjusting material 5 that adjusts the fixing tension of the linear material. It is fixed and held on the fixing column 1 (FIG. 1).

(Horizontal cushioning material 4)
The horizontal cushioning material 4 is composed of a plurality of cushioning plates arranged in parallel and a cushioning material interposed through the surface of the overlapping range of the cushioning plates in the stacking thickness direction. One part of the number is used as a connection part at one side end, and the remaining number is used as a connection part at the other side end. In the embodiment, a total of three buffer plates, which are composed of two buffer plates protruding to the right side and one buffer plate overlapping between the two buffer plates and protruding to the left side, are stacked. In the plate surface of the common overlapping range of the three buffer plates, an interstitial hole having a common size is formed, penetrating through the overlapping thickness direction of the three interposing holes, and a prismatic buffer The material is interposed. In this prismatic cushioning material, both side surfaces adjacent to both ends are covered with a protection plate, and a prismatic elastic cushioning material is sandwiched between the protection plates.

  The double-layered buffer plate protruding to the right has a connecting hole formed at the right end of each plate, and a sleeve with a hole that holds two overlapping intervals is sandwiched at a position overlapping each connecting hole. Both of them constitute a connection hole. One buffer plate protruding to the left has a connection hole at the left end.

(Tension adjusting material 5)
The tension adjusting member 5 is constituted by a turnbuckle having shackle rings at both ends. Specifically, it is composed of left and right shackle rings and a buckle body that is screwed so that the distance between the base screws of each shackle ring can be adjusted.

<Other embodiments>
The present invention has been described above based on the embodiment. The embodiment is an exemplification, and various modifications, increases / decreases, and combinations may be added to the above-described embodiments without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 Fixing support | pillar 11 Support | support frame 11G Buffer sheet 12 Support bolt 12A Shear force dispersion material 12B Stop nut 12C Joint nut 12G Anchor resin material 122 Breaking bolt 122D Breaking groove 13 Fixing tool 132 Fixed end plate 13T Inclined bending plate 13B Fixed bolt 13N Fixing Nut 13S Shackle 14 Top plate 15 Rust prevention cap 150 Internal cushioning material 16 Foundation bolt 16B Lock nut

2 intermediate strut 20 strut frame 21 insertion frame plate 22 strut bolt 22A shearing force dispersion material 23B fixing bolt 23N fixing nut 24 top plate

3 Guard strap 3S Shackle 32F Spacing material 32P Reinforcement cylinder 34P Connecting pipe (steel pipe)
35 End wire

4 Horizontal cushioning material 5 Tension adjusting material (turn buckle)
6 Base structure 61 Foundation structure 62 Plate structure 7 Floor structure 7B Pedestrian block 71 Asphalt structure 72 Concrete structure

Claims (6)

A plurality of fixing posts 1 erected by alternately opening a first section of a predetermined distance corresponding to the guard strap length and a second section of a predetermined distance shorter than the first section distance;
A guard strap 3 having bending elasticity, which is fixed at both ends across a pair of fixing columns 1, 1 at a plurality of heights of the pair of fixing columns 1, 1;
One end of the guard strap 3 fixed to each fixing column 1 is connected to each other at a plurality of heights of another pair of fixing columns 1, 1 erected with a second section, and between the fixing columns 1, 1. A lane dividing fence comprising a rigid connecting pipe 34P,
Each of the plurality of guard straps 3 and the plurality of connecting pipes 34P are alternately connected via the fixing column 1 to form a linear body, and the plurality of rows of linear bodies are arranged apart from each other in the vertical direction. A lane division fence characterized by comprising a horizontal fence. A lane division fence further comprising a plurality of intermediate struts 2 erected at a plurality of locations for further subdividing the first section distance of the pair of fixing struts 1, 1,
The intermediate strut 2 has a plurality of insertion frames through which the guard straps 3 of the respective rows are inserted, separated vertically.
The lane division fence according to claim 1, wherein a portion of the guard strap 3 in the linear body is inserted through insertion frames of a plurality of intermediate struts 2 erected in the first section. The fixing column 1 is installed in a block-like base structure 6 fixed on the floor structure 7 so as to stand upright and fixed by a resin anchor, and surround the column bolt 12 in a cylindrical shape. It is composed of a support frame 11 and a plurality of fixing tools 13 that are dispersed and fixed for each predetermined height of the support frame 11 via a buffer sheet.
The end portions of the guard strap 3 are held and fixed by the fixed ends projecting on both sides of each of the plurality of fixing tools 13.
By forming a fracture groove 122D for losing the axial cross section in advance on the outer peripheral surface of at least one of the support frame 11 and the support bolt 12,
At least one of the bending strength of the support frame 11 or the bending strength of the support bolt 12 is:
The lane division fence according to claim 1 or 2, which is set lower than the holding force of the guard strap by the fixing device 13, the tensile strength of the guard strap, and the tensile strength of the fixing device 13. The intermediate support column 2 is installed in a block-like base structure 6 fixed on the floor structure 7 so as to stand upright and fixed by a resin anchor, and surround the support bolt 12 in a cylindrical shape. It is composed of a support frame 20 and insertion frames that are dispersedly formed for each predetermined height of the support frame 20.
The guard strap 3 is inserted into the frame by an insertion frame having a plurality of openings at every predetermined height of the support frame 20,
A fracture groove 122D for losing an axial cross section is formed in advance on the outer peripheral surface of at least one of the support frame 20 and the support bolt 12;
At least one of the bending strength of the support frame 20 or the bending strength of the support bolt 12 is:
The lane division fence according to claim 1, 2, or 3, which is set lower than the holding force of the guard strap by the fixing device 13, the tensile strength of the guard strap, and the tensile strength of the fixing device 13. At the connection boundary between the guard strap 3 and the connecting pipe 34P, which are alternately connected as a linear body, a horizontal buffer 4 for buffering a tensile impact on the linear material, or a tension adjustment for adjusting the fixing tension of the linear material The lane division fence according to claim 1, 2 or 3, wherein at least one of the members 5 is interposed. At the connection boundary between the guard strap 3 and the connecting pipe 34P that are alternately connected as a linear body, a horizontal cushioning material 4 that cushions a tensile impact on the linear material, and a tension adjustment that adjusts the fixing tension of the linear material The lane division fence according to claim 5, wherein the material 5 and the fixing tool 13 that is dispersed and fixed at every predetermined height of the fixing support 1 are connected to each other.

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