KR20100068175A - Impact attenuator for installation along road - Google Patents

Abstract

PURPOSE: A shock absorber for a vehicle collision is provided to minimize damage to a vehicle, a person, and a structure by absorbing and eliminating striking energy by stages. CONSTITUTION: A shock absorber for a vehicle collision comprises a guide rail(10), sliders(20), a shock post plate(50), a shock absorbing post plate(40), a stopper post plate(30), and a horizontal connector. The sliders are movably assembled in the guide rail. The shock post plate is fixed to be moved back along the sliders. The shock absorbing post plate is fixed to be moved back along the sliders. The stopper post plate collides with the shock absorbing post plate and stops the movement of the shock absorbing post plate. The horizontal connector absorbs and eliminates striking energy by stages.

Description

Impact attenuator for vehicle collision {Impact attenuator for installation along road}

The present invention relates to a vehicle impact shock absorber installed at a point where a vehicle collision is expected, such as a branch point of a road, a start point of a median separator, or a tunnel entrance, and more particularly, is supported by a horizontal connecting member when a vehicle collision occurs. A vehicle that can minimize the damage of the vehicle and road facilities as well as securing the occupant's safety by continually absorbing and dissipating the impact energy through the friction, cutting, and collision of each buffer means while the plurality of prop plates are pushed backward. A crash shock absorber.

In general, various safety facilities such as guard rails or central separators are installed on the roads to protect road traffic in case of accidents.

In addition, at the entrance of the crossroads where roads are divided by facilities installed on the roads, such as underground roads, overpasses, tunnels, bridges under bridges, and highway toll gates, the driver may inadvertently enter the structure. In order to prevent collisions, guards are installed to protect the occupants' lives and protect the installed facilities in the event of a vehicle crash.

In the case of a traffic accident that hits these various safety facilities, vehicle damage and human damage due to the huge impact energy are great, and a shock absorbing means capable of effectively absorbing such impact energy is required.

In order to solve this problem, a buffer using a plurality of tires or urethane foam is installed in front of the protective fence, but the buffer is installed in the front of the structure without being fixed simply. However, the urethane foam pops out and interferes with the safe operation of other vehicles, which causes another accident. Even if the cushioning material is fixed to the floor, the cushioning material does not gradually produce a cushioning effect. As a result, the vehicle bounced off, causing a second collision with another vehicle being driven.

In addition, in order to absorb shock energy stably enough, a considerable installation length is required, but it is difficult to expect a definite cushioning effect because it must be installed in a limited space due to road conditions.

The present invention is to solve such a problem, while the installation area is small, but various types of shock absorbing action is carried out step by step during the vehicle crash to reliably absorb and destroy the impact energy, reducing the installation cost, damage to the vehicle and structure Of course, the object of the present invention is to provide a vehicle impact shock absorber that is configured to minimize the passenger damage.

In addition, another object of the present invention is to provide a vehicle impact shock absorber configured to complement the structurally weak shock absorbing power by installing connected to the starting point of the road facility, such as a fence fence.

The vehicle impact shock absorber of the present invention for achieving the above object is fixed on the road surface, the upper surface guide slit formed in the longitudinal direction of at least one tubular guide rail; A plurality of sliders which are assembled to be movable at appropriate intervals in the guide rails, and a part of the body protrudes to the outside through the guide slits of the guide rails; At least one impact strut plate retracted along the foremost slider which is fixed on the foremost slider among the sliders and retreats; At least one impact absorbing holding plate retracted along the rear slider when the impact holding plate collides to be fixed on the rear slider among the sliders of the impact holding plate; At least one stopper support plate fixed to the rear of the guide rail to restrain the retraction of the shock absorbing support plate; And at least one horizontal connection member connected to the impact strut plate, the shock absorbing strut plate, and the stopper strut plate in a longitudinal direction, and compressed together with friction as the impact strut plate and the shock absorbing strut plate are retracted. It is configured to include.

According to another aspect, one or more connecting bar mounting portions are formed on each of the impact holding plates, the shock absorbing holding plates and the stopper holding plates, and each of the connecting bar mounting portions is provided with a pair of friction columns at appropriate intervals. The horizontal connecting member is composed of a pair of left and right pairs of connecting bars installed horizontally, respectively, in the connection bar mounting portion of each of the strut plates located in front and rear of the guide rail, the pair of left and right pairs, one end of the front support plate The connection bar is fixed to be spaced apart from the other end, characterized in that the other end is mounted so as to narrow the gap between the friction pillars installed in the connection bar mounting portion of the rear support plate.

According to another aspect, at least one guide bar is fixed to both sides of the support plate and the other end is connected to the impact support plate on both sides of the support plates, each guide bar is a plurality of telescopic horizontally arranged side by side It is characterized by consisting of bars.

According to another aspect, one or more shock absorbing pins are fixed to be horizontally penetrated horizontally through the guide rail between the respective holding plate is cut by the slider to retreat.

According to another aspect, the horizontal connecting member, one end is penetrated through the stopper holding plate, the other end is connected to the road structure located in the rear side H-shaped steel; A pair of left and right pairs of tubular friction members, one end of which is housed in the left and right 'c'-shaped grooves of the H-shaped steel so as to be movable, and the other end of which penetrates through the shock absorbing support plate; And one pair of left and right slide bars, one end of which is frictionally housed in the pair of friction members, and the other end of which is fixed to the impact strut plate. And a control unit.

According to another aspect, the left and right pair of slide bars are provided with one or more connection supports therebetween, the friction member is formed with a guide groove to move the connection support of the slide bar on the inner side, the shock absorbing The holding plate is characterized in that the support cutting piece is installed in the vertical direction on the front surface.

According to another aspect, the pair of slide bar and the friction member is characterized in that the width between them is configured to narrow gradually toward the rear.

According to another aspect, the connecting bar mounting portion is a through hole drilled in each of the support plates, or a pair of left and right support plates are fixed to the upper end of the slider at predetermined intervals, and the connection between the left and right pair of support plates is installed. Characterized in that the connection member.

According to another aspect, the left and right pairs of strut plates are fixedly installed on the sliders respectively assembled in the pair of guide rails arranged side by side.

According to another aspect, the left and right pair of holding plates, the support plate is installed at the same time to cover the sliders respectively assembled in the pair of left and right guide rails arranged side by side, characterized in that fixedly installed at a predetermined interval on the support plate It is done.

According to another aspect, the left and right pair of connecting bar is characterized in that the side of the stopper holding plate is fixed side by side installed in the state spaced apart.

According to another aspect, the shock-absorbing strut plate is characterized in that a plurality are installed at appropriate intervals along the guide rail.

According to another aspect, an outer cover for covering each component so as not to be exposed to the outside is further provided.

Vehicle impact shock absorber according to the present invention, the installation area is small, reducing the installation maintenance cost, less space constraints, by offsetting the shock energy transmitted through the various buffering action in the event of a vehicle crash, the vehicle and the structure Of course, there is an effect that can minimize the damage of the occupants.

In addition, the shock absorber of the present invention can be connected to the starting point of the road facility, such as a fence fence, can be used as it is without removing the existing structure to compensate for the structurally weak shock absorption.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a first embodiment of the shock absorber according to the present invention, Figure 2 is an exploded perspective view of Figure 1, Figure 3 is an operating state diagram of FIG.

1 to 3, the vehicle impact shock absorber according to the first embodiment of the present invention, the tubular guide rail 10 is fixed on the road surface and the inside of the guide rail 10 The slider 20 is assembled to the foremost part and the center part so as to be movable at appropriate intervals along the longitudinal direction, and is located above the guide rail 10 so as to retreat along the front slider 20 when the vehicle crashes. The shock absorbing plate (50) fixedly installed thereon and the shock absorbing plate (40) fixedly installed thereon so as to retreat along the slider (20) at the rear thereof when the impacted holding plate (50) collides. And a stopper support plate 30 at which the impact absorbing support plate 40 retreating from the rear of the guide rail 10 collides and is stopped, the impact support plate 50, and an impact absorption support plate 40. The vehicle is connected to the stopper holding plate 30 in the longitudinal direction It is composed of one or more transverse connecting members which are slidably compressed in the opposite direction of impact and gradually absorb and offset the impact energy applied with friction.

The guide rail 10 may be composed of a single body, but preferably, a pair of assemblies 10a and 10b having a 'c'-shaped cross section are installed side by side at intervals so that the inner spaces face each other. Guide slit 12 is formed in the longitudinal direction, the fixing plate 11 for fixing the anchor bolt 13 on the road surface is installed to protrude through welding or the like on both sides. In this case, the fixing plate 11 may be installed by arranging a plurality of assemblies at appropriate intervals if necessary.

The slider 20 has a shape of an approximately I-beam having a flange in the horizontal direction at the top and bottom of the web (web) arranged vertically, the web is fitted to the guide slit 12 of the guide rail 10 The upper flange has a structure in which the upper flange is properly positioned to protrude upwardly of the guide rail 10, and only the lower flange is positioned inside the guide rail 10.

Preferably, the guide rail 10 further includes one or more shock absorbing pins 15 that are sequentially cut by the slider 20 that retracts when the vehicle crashes.

In addition, at a predetermined position on both sides of the guide rail 10, a group of fastening holes for installing the plurality of shock absorbing pins 15 are formed coaxially, and preferably, the fastening holes are the length of the guide rail 10. It is provided in two rows along the direction, and the fastening holes of each row are arranged so as to cross each other. This is because the shock absorbing pins 15 are disposed at minute intervals and are installed in a large amount in a small gap so as to offset and absorb shock energy in stages.

The impact strut plate 50 and the shock absorbing strut plate 40 are provided with a friction member and a slider bar which will be described later at both ends, preferably one or more through-holes to improve the stability of the friction member and the slider bar installed. (52a) (42a) has a support piece (52, 42) formed bent, the impact support plate (50) has a fixing piece (51) formed with a bolt hole, the front portion of the impact absorbing support plate (40) One or more friction member through holes 43 are formed.

On the other hand, the impact holding plate 50 and the shock absorbing holding plate 40 is preferably attached to the support plate 21 on the upper flange of each slider 20 for rigid reinforcement, the impact plate on the support plate 21 The support plate 50 and the shock absorbing support plate 40 are vertically fixed and installed.

And, the stopper holding plate 30 may be composed of a steel structure as well as a concrete structure as in the embodiment as long as it can restrain the receding shock absorbing holding plate 40, in this embodiment, the shock absorbing retreating The lower end is bolted to the guide rail so as to improve the restraining force on the holding plate 40, the lower end is fixed to the guide slit 11 of the guide rail 10, the fixing plate 32 is coupled Protruding installation is made of a structure that is fixed by the bolt (32a) from the side of the guide rail (10).

In addition, the stopper support plate 30 has one or more through holes in parallel with the through holes 52a, 42a, 43 of the impact support plate 50 and the shock absorbing support plate 40, and the through hole. An end portion of the H-shaped steel 60, which is preferably extended rearward as necessary and can be utilized as a connecting member of a road structure such as a guardrail or a median, is fitted into the 31.

In addition, the horizontal connecting member, which is compressed together with the friction during the vehicle crash to offset the impact energy in stages, one end of the 'c' shaped groove of the H-shaped steel 60 installed on the stopper holding plate 30 And the other end is inserted into the through holes 42a and 43 formed in the shock absorbing holding plate 40, and the other end is rubbed to the slide 61 and is slidably movable. A pair of left and right friction members 70; One end is received in the friction member 70 installed in the shock absorbing holding plate 40, respectively, so as to be slidably movable, and the other end is fixed to the fixing piece 51 protruding from the inside of the impact holding plate 50. A pair of left and right slider bars 80 fixed through the fixing bolt 81, the washer 81a, and the nut 81b; It is configured to include.

At this time, the left and right pair of slider bar 80 is provided with one or more connection support 82 is installed in the gap to minimize the warping or bending when retracted, the connection bar 82 is to be guided to be movable Guide grooves 72 are formed in the inner surface of the friction member 70 in the longitudinal direction, and the pair of left and right pairs of slider bars 80 at the front of the impact absorbing holding plate 40 when the vehicle crashes. The reinforcing support 82 is sequentially caught and cut while being retracted, and the supporting support cutting piece 44 protrudes in the vertical direction so that the impact energy is canceled out.

The connecting support 82 is connected to only one pair of lower slider bars in the drawing, but if necessary, can be installed by applying to all the upper and lower slider bars.

4 is a view showing another embodiment of the present invention, when the slide bar 80 is pushed into the friction member 70 during a vehicle collision to increase mutual frictional force, the guide rail 10 and the friction member ( 70) and to minimize the deformation of the slide bar 80 and to allow the support plate to be retracted to further improve the cushioning effect, through holes 43 (42a) and H-shaped steel ( The installation position of the 30 is gradually narrowed toward the rear so that the slider bar 80 and the friction member 70 are installed in a tapered form of the all-light rear narrow.

Therefore, this configuration in which the width between the slider bar 80 becomes narrower from the slider bar 80 toward the friction member 70 acts to collect the impact energy applied from the front to the center, so that the slider bar 80 is subjected to a strong impact. B or a shock absorbing element such as the friction member 70 is to prevent the broken or popped out in an unexpected direction and lose its function and to have a more effective cushioning action.

Referring to the operation of the vehicle impact shock absorber according to the present embodiment having such a configuration as follows.

If the vehicle inadvertently hits the front of the impact holding plate 50 of the shock absorber due to inadvertent driver's carelessness, the slider 20 and the upper portion of the slider 20 fitted to the guide rail 10 by the impact force As the impact holding plate 50 fixedly retreats, the rear portion of the slider bar 80 is inserted together with friction into the friction member 70, and the web of the slider 20 is installed inside the guide rail 10. At the same time as cutting the shock absorbing pin 15, the connection support 82 of the slider bar 80 is cut by the cutting piece 44, thereby offsetting the primary energy step by step.

At this time, the shock absorbing pin 15 and the connecting support 82 are continuously installed at minute intervals, and the above cutting operation occurs sequentially at minute intervals, thereby gradually absorbing and removing the impact energy of the vehicle. It is decelerated by the speed, the slider 20 is bent at the same time as the retraction randomly bend and interfere with the impact absorbing pin 15 is cut effectively to prevent the secondary collision of the vehicle generated by the impact caused by the collision repulsive force It becomes possible.

In addition, when the collision of the vehicle acts harder, the pair of friction members 70 are inserted together with friction into the left and right 'c'-shaped grooves 61 of the H-shaped steel 60 after the first operation as described above. The slide is moved back until the impact absorbing holding plate 40 is stopped by the stopper holding plate 30 in a similar action to the impact holding plate 50, and the shock is secondary to absorb and offset the second movement, The impact energy is additionally offset by the impact of the impact strut plate 50 and the shock absorbing strut plate 40 and the collision of the shock absorbing strut plate 40 and the stopper strut plate 30 generated during the process.

5 to 7 show another embodiment of the present invention.

As shown, according to the present embodiment, a pair of guide rails 10 are installed side by side, each pair is fitted in a corresponding position to move in pairs at the same time inside the pair of guide rails 10, respectively. The connecting plate 121 is installed on the upper surface of the left and right sliders 20, and a pair of left and right impact support plates 119 and shock absorbing support plates 110 are installed at regular intervals thereon, and the guide rails 10 are provided. A stopper support plate 100 is installed at a rear side thereof, and the impact support plate 119, the shock absorbing support plate 110, and the stopper support plate 100 are spaced vertically between the pair of connecting members 112. Is connected by).

At this time, the pair of friction pillars 118 are provided in the connection member 112 at a proper interval in pairs.

The pair of left and right pairs of connecting bars 130 are fixedly installed on the inner side surfaces of the pair of impact strut plates 119 by bolts 115 with one end spaced apart from each other, and the other end is located at the rear. Between the friction pillars 118 installed on the connection member 112 of the shock absorbing holding plate 110 has a structure that is collected and mounted so as to narrow the gap.

Therefore, the impact strut plate 119 and the sliders 20 at the bottom thereof retreat along the guide rails 10 due to the impact applied during the vehicle collision, and a pair of connecting bars 130 installed in the horizontal direction on the upper side thereof. ) Is inserted into the gap of the connection bar 130, which is located on the rear side while being rubbed against the friction column 118, and is inserted and opened at the same time.

Since the shock absorbing holding plate 110 is pushed, a pair of connecting bars 130 installed on the shock absorbing support plate 110 are identical between the connecting bars 120 installed on the stopper holding plate 100 located at the rear thereof. In the process of retracting completely and being inserted in close contact, the extra shock energy is reliably offset.

At this time, since the connecting bars 120 installed at the rear end are inserted into the gaps, the connecting bars 130 are retracted earlier, so that they are installed side by side in a parallel form rather than in a tapered wedge shape to improve stability. Do.

In addition, the shock absorbing device can be installed to extend the length of the impact absorbing holding plate 110 and the connection bar 130 is installed along the guide rails as necessary, depending on the road situation as necessary.

On the other hand, in the present embodiment is installed to form a pair of left and right struts, connecting and connecting the connection member 112 therebetween to show the connection bar 120, 130 is installed on the connection member 112 described However, if necessary, only one support plate is installed in a wide width, and the through-holes are formed in the support plate so that the friction pillars 118 and the connection bars 120 and 130 of the connection member 112 are installed. You may.

In addition, since the shock absorbing pin 15 provided in the guide rail shown in the above embodiment has the same structure and function as the previous embodiment, detailed description thereof will be omitted to avoid duplication.

In addition, one or more guide bars 200 may be installed on the side surfaces of the impact support plate 119, the shock absorbing support plate 110, and the stopper support plate 100.

The guide bar 200 preferably consists of a plurality of assemblies 210, 220, 230 coupled in a plurality of multistage telescopic forms arranged side by side horizontally, each assembly 210, 220. The end 230 is directly coupled to the end of the support plate through a bolt or the like, or flanges 220a and 230a protrudingly formed at the end thereof and coupled to the side of the support plate through bolts, etc., and the stopper support plate 100. In this case, a guide tunnel 240 surrounding the end of the assembly 230 is additionally installed so that the installed assembly 230 can retreat.

On the other hand, the shock absorber of the present invention is preferably provided with an outer cover that completely covers the outside.

The exterior cover is intended to prevent the appearance of the road aesthetically deteriorated by the beautiful appearance of the shock absorber, and may be any shape as long as it can be compressed along the receding support plates during a vehicle crash.

For example, the exterior cover of the present invention, as shown in Figure 8 as an embodiment, a plurality of intermediate covers 320 covering each installation plate 119 (110 (100) and the installation section of the horizontal connecting member) 330, the front cover 310 to shield the front of the front impact strut plate 119 and the rear cover (not shown) covering the stopper strut plate 100, if necessary, is combined in a telescopic form each cover in the event of a crash Are sequentially pushed back while overlapping.

In addition, if necessary, the intermediate covers 320 and 330 may be fastened to the corresponding guide bar or the support plate through bolts, and the front cover 310 may be fastened to the foremost impact support plate 119 with bolts. The rear cover may be bolted to the rear middle cover.

In addition, each of the intermediate covers 320 and 330 may be configured as a single body, or may be configured as a combination of at least two divided bodies as shown. In this case, the intermediate covers 320 and 330 are configured by fastening the two ends with the bolts 332 so that the coupling ends of the other partitions 330 are superimposed on the coupling ends of one of the partitions 320.

In addition, a plurality of reinforcing beads 331 for strength reinforcement are formed on both side surfaces of the intermediate cover 320 (330), and the front surface of the front cover 310 is provided with a safety sign made of luminous or reflective material. This is preferred.

Although the vehicle impact shock absorber according to the embodiment of the present invention has been described above, the present invention is not limited thereto, and those skilled in the art can of course apply and modify the same.

For example, in this embodiment, the horizontal connecting member is installed in two rows up and down to provide a shock absorbing function, but this is considered in consideration of the construction cost and stability in accordance with the road conditions or protective fences in which the shock absorber is installed. Additional installations can be made in structures or in three or more rows.

In addition, only one guide rail 10 applied to the present invention may be provided, but when necessary, two or more guide rails 10 may be arranged side by side at intervals so as to stably maintain the supporting state of all the components supported thereon. have.

And, each holding plate is installed on each of the guide rails 10, or as described above to install a support plate that is fixed at the same time in the width direction on the plurality of guide rails to install each of the long holding plate, such as one In consideration of the structure and the like can be modified in various forms, all of these will have the same effect as the above-described embodiment.

1 is a perspective view showing a first embodiment of the shock absorber according to the present invention.

Figure 2 is an exploded perspective view of Figure 1;

3 is a state diagram of the operation of FIG.

Figure 4 is a perspective view showing another embodiment of the shock absorber according to FIG.

5 is a perspective view showing another embodiment of the shock absorber according to the present invention.

6 is an exploded perspective view of FIG. 5;

7 is a state diagram of the operation of FIG.

Figure 8 is an exploded perspective view showing a state in which the exterior cover is mounted on the shock absorber according to the present invention.

Explanation of symbols on the main parts of the drawings

One ; Shock absorber 10; Guide rail

12; Guide slit 13; Anchor bolt

15; Shock absorbing pin 20; Slider

30, 100; Stopper holding plates 40, 110; Shock Absorption Strut

50, 119; Impact strut plate 60; H-beam

70; Friction member 80; Slide bar

118, friction column 120, 130; Connecting bar

200; Guide bar 310; Front cover

320, 330; Middle cover

Claims (12)

One or more tubular guide rails fixed on the road surface and having guide slits longitudinally formed thereon; A plurality of sliders which are assembled to be movable at appropriate intervals in the guide rails, and a part of the body protrudes to the outside through the guide slits of the guide rails; At least one impact strut plate retracted along the foremost slider which is fixed on the foremost slider among the sliders and retreats; At least one impact absorbing holding plate retracted along the rear slider when the impact holding plate collides to be fixed on the rear slider among the sliders of the impact holding plate; At least one stopper support plate fixed to the rear of the guide rail to restrain the retraction of the shock absorbing support plate; And One or more horizontal connection members connected to the impact strut plate, the shock absorbing strut plate, and the stopper strut plate in a lengthwise direction and compressed together with friction as the impact strut plate and the shock absorbing strut plate are retracted; It is configured to include, The horizontal connecting member, One end is penetrated through the stopper holding plate, the other end is connected to the road structure located on the rear side H-shaped steel; A pair of left and right pairs of tubular friction members, one end of which is frictionally housed in the left and right 'c'-shaped grooves of the H-shaped steel, and the other end of which is penetrated and coupled to the impact absorbing support plate; And One pair of left and right slide bars, one end of which is housed in the pair of friction members and is movably received, and the other end of which is fixed to the impact strut plate; Vehicle impact shock absorber, characterized in that configured to include. The method of claim 1, The pair of left and right slide bars are provided with one or more connection supports therebetween, the friction member is formed with a guide groove to move the connection support of the slide bar on the inner surface, the shock absorbing holding plate is the front surface Vehicle impact shock absorber, characterized in that the support pieces are installed in the vertical direction in the support. The method of claim 1, The pair of slide bar and the friction member is a vehicle impact shock absorber, characterized in that the width between them is configured to gradually narrow toward the rear. The method of claim 1, At least one guide bar is fixed to both ends of the support plates and the other end is connected to the impact support plate, and each guide bar includes a plurality of telescopic bars arranged side by side in a horizontal direction. Vehicle impact shock absorber characterized in that. The method of claim 1, And at least one shock absorbing pin which is sequentially cut by a slider which is fixed to penetrate horizontally through the guide rails between the respective holding plates and is retracted. The method of claim 1, The connection bar mounting portion is a vehicle impact shock absorber, characterized in that the through-hole perforated in each holding plate. The method of claim 1, The connection bar mounting portion is a vehicle impact shock absorber, characterized in that the left and right pairs of strut plate fixed to the upper end of the slider, the connection member is installed between the pair of left and right struts. The method of claim 7, wherein The pair of left and right struts is fixed to each of the sliders assembled in the pair of guide rails arranged side by side, respectively, characterized in that the vehicle impact shock absorber. The method of claim 7, wherein The pair of left and right support plates, the support plate is installed at the same time to cover the sliders respectively assembled in the pair of left and right guide rails arranged side by side, the vehicle impact impact, characterized in that fixedly installed at a predetermined interval on the support plate Shock absorber. The method of claim 1, The pair of left and right connection bar is a vehicle impact shock absorber, characterized in that the side of the stopper holding plate fixed to be installed side by side in the spaced apart state. The method of claim 1, The impact absorbing strut plate is a vehicle impact shock absorber, characterized in that a plurality is installed at a suitable interval along the guide rail. The method according to claim 1 or 2, And an exterior cover for covering the guide rail, the slider, the impact strut plate, the impact absorbing strut plate, the stopper strut plate, and the horizontal connection member so as not to be exposed to the outside.

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