JPH11269832A - End-support slipping-off type guard device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid a situation that a car and a passenger receive large damage by a collision against an end support of the car by slipping off the end support for supporting a guard cable under a stretched state from the ground side before the car collides. SOLUTION: A support inserting cylinder is installed on the lower side and a direction guide body on the upper side in a base body fixed onto a ground, and support slipping-off bodies 7 are guided by the direction guide body and displaced in the fixed direction. Lifters 14, 14, on which the displaced support slipping-off bodies 7 are mounted, are arranged at the rears of the support slipping-off bodies 7. An end support 16 for supporting a cable is disposed onto the base body 1 under the state, in which the lower side of a support body 18 is inserted to a support inserting cylinder 3 in a manner that the lower side of the support body 18 can be inserted and detached, and a support lift body 20 is engaged with the support slipping-off bodies 7. The support slipping- off bodies 7 and the end support 16 for supporting the cable are connected by connecting bolts 24, 25, 26 ruptured with time difference.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guard device having a structure in which a guard cable is stretched between end struts, and more particularly, when a vehicle collides, the end struts are pulled out of the ground side so that a vehicle and an occupant are impacted by the end struts. The present invention relates to a guard device for removing a supporting end column, which is configured not to receive the same.

[0002]

2. Description of the Related Art Conventionally, a guard cable device for preventing a vehicle from falling off the road is installed on a road shoulder. This guard cable device has a configuration in which an intermediate support is erected between terminal supports separated along a road shoulder, and a plurality of guard cables are stretched by these supports.
Since the guard cable needs to be supported in a tensioned state in order to have impact resistance to a vehicle collision, the end support is firmly erected on a foundation block fixed to the ground.

[0003]

However, since the end support of the guard cable device of the prior art is firmly erected on the foundation block formed by excavating the ground as described above, the vehicle will However, there is a problem that not only is the passenger seriously damaged, but also the passenger is injured or injured by a large impact.

The present invention has been made in view of the above-mentioned problems of the prior art, and the terminal support supports the guard cable in a tensioned state, and is pulled out from the ground side immediately before the collision of the vehicle, so that the vehicle is supported by the terminal support. It is an object of the present invention to provide a terminal support extraction type guard device capable of avoiding a situation in which a vehicle and a passenger are seriously damaged by colliding with the vehicle.

[0005]

Means of the present invention configured to solve the above-mentioned problems include a support having a column insertion portion and a direction guide portion, a base fixed to the ground, and a base mounted on the base. A pillar extraction body that is engaged and is displaced in a predetermined direction by being guided by the direction guide portion when receiving an impact, and the pillar extraction body that is fixed to the base body in the displacement direction rearward of the pillar extraction body and displaced by the impact. A lifter on which a support extraction body is mounted, and a lower end of the support main body inserted and detachably inserted into the support insertion portion to stretch a guard cable, are placed on the base, and are mounted on the lifter. And a cable support end support that is pulled out of the base by the support extraction body.

[0006] The column extraction body includes a fence-shaped main body,
It comprises a pair of slide plates fixed to the lower end of the fence-shaped main body, and bolt cutting holes drilled in each slide plate, and the cable support terminal post has a lower side inserted into a post insertion portion of the base. A column main body that is erected in a state where it is detachably inserted, a column lift body that is protruded from the column main body while being engaged with the column extraction body, and a column lift body that faces the bolt cutting hole; And a bolt insertion hole formed in the hole.

A plurality of bolt cutting holes are formed in the column extraction body, and a plurality of bolt insertion holes are formed in the column lift body so as to face the bolt cutting holes, respectively. Each of the bolt cutting holes may be formed as a long hole in the long axis in the direction of displacement so that the plurality of connecting bolts break with a time lag when displaced. By doing so, the bolt can be cut smoothly, and the impact at the time of collision can be attenuated.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. In the figure, reference numeral 1 denotes a base fixed to the ground A. Reference numeral 2 denotes a substrate 2 made of a long steel plate constituting the base 1, and a support insertion hole 2 is provided substantially at the center of the substrate 2 in the width direction.
An opening A is formed, and a column insertion tube 3 protrudes from the lower surface coaxially with the column insertion hole 2A. Reference numeral 4 denotes a direction guide body for guiding a pillar extraction body 7 described later to be displaced in a predetermined direction. The direction guide body 4 includes a base plate 4A made of a rectangular flat plate and a pair of guide pieces 4B and 4B protruding from both sides in the width direction of the base plate 4A. And fixing bolts 5, 5
Is fixed by The substrate 2 is fixed to a concrete foundation 6 formed by excavating a hole in the ground A and casting it through an anchor bolt (not shown).

Reference numeral 7 denotes a column extraction body for displacing a later-described end column 16 from the ground A side by displacing in the direction of arrow A by the impact of the vehicle B. Reference numeral 8 denotes a fence-shaped main body which constitutes the column extraction body 7, and the fence-shaped main body 8 is a pair of vertical columns 8
A, 8A and upper and lower horizontal columns 8 connecting the vertical columns 8A, 8A
B, 8B, a pair of reinforcing columns 8C projecting obliquely from the upper end side of each vertical column 8A, and a connecting member 8D connecting the reinforcing columns 8C, 8C.

Reference numerals 9 and 9 denote a column pull-out body 7 and a pair of slide plates fixed to the lower end of the fence-shaped main body 8, each of the slide plates 9 having a substantially ski having an upwardly inclined portion 9A at the tip end. It has a plate shape. Reference numerals 10, 11, and 12 denote three bolt cutting holes formed in each slide plate 9, and as shown in FIG. 4, each of the bolt cutting holes 10, 11, and 12 is formed by a long hole of a long axis in the displacement direction a. And at predetermined intervals in the same direction. And each slide plate 9 is a small bolt 1
It is connected to the direction guide body 4 by 3 and 13.

Numerals 14 and 14 denote a pair of lifters on which the column pull-out body 7 displaced backward by the impact rides, and each of the lifters 14 has a flat triangular shape having an inclined side 14A. It is fixed to the base 1 behind the plate 9.

Reference numerals 15, 15,... Denote guard cables, and reference numeral 16 denotes a cable supporting end support for supporting the guard cables 15 in a stretched state. Reference numeral 17 denotes a stationary plate that constitutes the cable supporting end column 16, and the stationary plate 17 has a shape in which a column insertion hole 17A is formed by drilling a long plate steel plate on one side in the longitudinal direction. The guides 4 are arranged in rows and mounted on the base 1. Reference numeral 18 denotes a column main body composed of a column for engaging the end side of each guard cable 15. The column main body 18 has a lower end 18A projecting downward from the column insertion hole 17A, and a stationary plate 17 having a lower end.
And is firmly supported by reinforcing columns 19 connected to the stationary plate 17.

Reference numeral 20 denotes a column lift body which is inserted and fixed at a position near the lower side of the column main body 18 so as to protrude above the slide plates 9 and 9. The column lift body 20 is made of a rectangular metal plate, and is used to transfer the movement of the column extraction body 7 that moves backward and rides on the lifter 14 to the column main body 18 to raise the column. Reference numerals 21, 22, and 23 denote three bolt insertion holes formed in the column lift body 20, and the bolt insertion holes 21, 22, and 23 are provided on both sides of the column through hole 20A at regular intervals along the displacement direction A. The bolt insertion hole 21 on the upper side in the displacement direction a is located on one side of the longitudinal direction of the bolt cutting hole 10, the intermediate bolt insertion hole 22 is located on the middle in the longitudinal direction of the bolt cutting hole 11, Bolt insertion hole 2
Reference numeral 3 is provided so as to be located on the other side in the long axis direction of the bolt cutting hole 12. The cable supporting end support 16 having the above-described configuration is mounted on the base 1 in a state where the lower end 18A of the support main body 18 is removably inserted into the support insertion tube 3 so that each guard cable 15 Supports tension.

Reference numerals 24, 25, and 26 denote three connection bolts for connecting the column extraction member 7 and the cable supporting end column 16. Then, the connection bolt 24 on one side is connected to the bolt cutting hole 1.
0 and the bolt insertion hole 21 so that the intermediate connection bolt 25
Are connected to the bolt cutting hole 11 and the bolt insertion hole 22, and the connection bolts 26 on the other side are connected to the bolt cutting hole 12 and the bolt insertion hole 23 and fastened by inserting nuts. As described above, the three connecting bolts 24, 25, and 26 are separated in the direction of displacement a so that they are sequentially broken with a time lag.

In this embodiment, the three bolt cutting holes 10, 11, and 12 are formed as long holes. However, the bolt cutting hole 10 located on the front side in the displacement direction a may be a round hole. It does not need to be formed in the hole.

The guard device of the present invention has the above-mentioned structure. Next, the operation of the guard device will be described with reference to FIGS. FIG. 5 shows a state immediately before the automobile B collides with the column extraction body 7. When the automobile B collides, the column extraction body 7 cuts the small-diameter bolts 13 and 13 and slides on the direction guide body 4 and the stationary plate 17 in the displacement direction a. Since the direction in which the column extraction body 5 is displaced by the direction guide body 4 is defined, even when the vehicle B collides from an oblique direction, the column extraction body 7 can be displaced in a predetermined direction. The column extraction body 7 is displaced, and the bolt insertion holes 21 and 2 formed in the column lift body 20 are formed.
When the bolt cutting holes 10, 11, 12 are displaced with respect to 2, 23, the connecting bolt 24 inserted into the bolt cutting hole 10 is cut first.

When the column extraction body 7 further slides and displaces, 3
The connecting bolt 25 located at the center in the axial direction of the bolt cutting hole 11 located in the middle of the bolt cutting holes 10, 11, 12 abuts on one end 11 </ b> A side of the bolt cutting hole 11 and is then cut. You. At this time, the third connecting bolt 2
6 is located at the axial center of the bolt cutting hole 12. When the column extraction body 7 is further displaced by the impact force, as shown in FIG.
When the column extraction body 7 is displaced to the distance L by being in contact with one end 12A side of FIG. Thus, three connection bolts on one side, a total of six connection bolts 2
The impact force can be considerably attenuated by the energy for sequentially cutting all of 4, 25 and 26.

All the connecting bolts 24, 25, 26 are cut and the column extraction body 7 opened from the column lifting body 20.
Means that each slide plate 9 is lifter 1 along the inclined side 14A.
4 and the column lift body 20 will be lifted. When the slide plate 9 completely rides on the lifter 14, the column main body 18 is pulled out from the column insertion tube 3. By pulling out the cable supporting end support 16 from the base 1 in this manner, the impact applied to the automobile B can be reduced. Thus, according to the end support extraction guard device according to the present embodiment, the impact received by the vehicle B can be attenuated by the support extraction member 7 before the vehicle B collides with the cable support end support 16. Since the cable supporting end support 16 is configured to be extracted from the base body 1 by the support extracting body 7 just before the vehicle B collides, the impact that the automobile B hits when hitting the end support in the related art is eliminated. Can eliminate the damage suffered by the passengers due to impact.

In this embodiment, the direction guide body 4 is provided on the substrate 2, but a configuration in which a pair of guide pieces are integrally provided on the substrate 2 may be adopted. Further, a guide body may be protruded from the center of the substrate in the width direction along the longitudinal direction, and the slide plate may be guided in a predetermined direction by the guide body.

Further, in the present embodiment, the cable supporting end support 16 and the support extraction body 7 are connected by the three connecting bolts 24, 25, and 26, and the impact is attenuated. Is not limited,
The point is that a plurality of connecting bolts may be broken with a time difference.

[0021]

The present invention has the following advantages because it is constructed as described above. (1) The end strut is inserted upright into the strut insertion part of the base fixed to the ground to support the strong tension of the guard cable by being erected, and a post extraction body is arranged in front of the end strut. In this case, the end strut is pulled out of the base body just before the collision of the vehicle, so that it is possible to eliminate the situation where the vehicle collides with the end strut and receives a strong impact, and to prevent accidental death or injury to the occupant due to the impact. Can be. (2) Since the connecting bolts connecting the cable-supporting end strut and the post-extracting body are arranged to be broken with a time difference due to the impact force, the impact of the vehicle collision is attenuated by the resistance at the time of the breaking of the connecting bolt. Therefore, the impact when the vehicle collides with the column extraction body can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of a distal column extraction guard device according to an embodiment of the present invention.

FIG. 2 is a side view of the end support extraction type guard device.

FIG. 3 is an exploded perspective view of the end support extraction type guard device.

FIG. 4 is an explanatory view showing the order in which the bolts are broken when the column extraction body receives an impact.

FIG. 5 is an explanatory view showing a state immediately before an automobile collides with a column extraction body.

FIG. 6 is an explanatory view showing a state immediately after an automobile has collided with a column extraction body.

FIG. 7 is an explanatory diagram of a state in which the column extraction body has started to ride on the lifter.

FIG. 8 is an explanatory diagram of a state in which the column extraction body rides on the lifter.

FIG. 9 is an explanatory view showing a state in which a cable support end support is separated from a base by a support extraction body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 3 Post insertion tube 4 Direction guide body 7 Post extraction body 8 Fence-shaped main body 9 Slide plate 10, 11, 12 Bolt cutting hole 14 Lifter 16 Cable support end post 18 Post main body 20 Post lift body 21, 22, 23 Bolt Insertion hole 24, 25, 26 Connecting bolt

Claims (3)

[Claims] 1. It has a strut insertion part and a direction guide part,
A base fixed to the ground, a post extractor that is engaged on the base and is displaced in a predetermined direction by being guided by the direction guide portion when receiving an impact; and a position behind the support extractor in the displacement direction. And a lifter fixed to the base and displaced by the impact so that the column extraction body rides thereon, and a state in which the lower end side of the column main body is removably inserted into the column insertion portion to stretch a guard cable. And a cable support end post which is mounted on the base and pulled out of the base by the post extraction body riding on the lifter. 2. The cable pull-out body according to claim 1, further comprising a fence-shaped main body, a pair of slide plates fixed to a lower end of the fence-shaped main body, and bolt cutting holes formed in each of the slide plates. The end support has a main body which is erected in a state where the lower side thereof is removably inserted into a support insertion portion of the base, and a support lift which is protruded from the support main body in a state of being engaged with the support extractor. 2. A guard device as claimed in claim 1, wherein said guard device comprises a body and a bolt insertion hole formed in said support lift body facing said bolt cutting hole. 3. A plurality of bolt cutting holes are formed in the column extraction body, and a plurality of bolt insertion holes are formed in the column lift body so as to face the bolt cutting holes, respectively. 3. The end strut according to claim 2, wherein each of the bolt cutting holes is formed as a long hole in a long axis in the direction of displacement so that a plurality of connecting bolts break with a time lag when displaced. Pull-out guard device.