| 1. | A shock absorber for car collision on the roads characterized in that, said shock absorber comprising : supporting bodies 20.21 mounted on both sidewalls of a median strip 10 of the roads in the direction of the lane; moving bodies 40,50 mounted on the exterior of said median strip 10; and a sliding means 30 embedded between said supporting bodies 20,21 and said moving bodies 40,50, so as to move said moving bodies 40,50. |
| 2. | The shock absorber for car collision on the roads according to claim 1, wherein said supporting bodies 20,21 are mounted detachably on said median strip 10 via clamping means. |
| 3. | The shock absorber for car collision on the roads according to claim 1, wherein said sliding means 30 are formed in a shape of rollers, and mounted on said supporting bodies 20,21 vertically as well as on both ends of protruded fixing shafts 25 rotatively. |
| 4. | The shock absorber for car collision on the roads according to claim 3, wherein buffering members 35 which absorb the impulsive force are provided on the circumferential surfaces of said sliding means 30. |
| 5. | The shock absorber for car collision on the roads according to claim 1, wherein a number of moving bodies 40,50 are mounted on connection coupled along said median strip 10. |
| 6. | The shock absorber for car collision on the roads according to claim 5, wherein the external shapes of said moving bodies 40,50 are formed like the lower, front and rear ends thereof are opened. |
| 7. | The shock absorber for car collision on the roads according to claim 1, wherein said moving bodies 40,50 are unit bodies comprising a pair of side-wall plates 41,51 facing both walls of said median strip 10, and contacting with said sliding means 30, and connecting plates 42,52 connecting the upper parts of said side-wall plates 41, 51. |
| 8. | The shock absorber for car collision on the roads according to claim 7, wherein space maintaining sections 41a, 51a are provided on said side-wall plates 41 of said moving bodies 40,50, and said sliding means 30 are hung up the boundaries between said side-wall plates 41,51 and said space maintaining sections 41a, 51a. |
| 9. | The shock absorber for car collision on the roads according to claim 7, wherein extended parts 51c are formed in the front of said side-wall plates 51, and reduced parts 51d are formed in the rear of said side-wall plates 51, so that said extended parts 51c are connected coupled to said contraction parts 5 1 d. |
| 10. | The shock absorber for car collision on the roads according to claim 7, wherein another buffering members 80 absorbing impulsive force are provided on the exterior surfaces of said moving bodies 40,50. |
| 11. | The shock absorber for car collision on the roads according to claim 8, wherein blocking plates 60,62 are mounted on said connecting plates 42,52 of said moving bodies 40,50, so as to block off disturbance coming out of the opposite lanes. |
BACKGROUND OF THE INVENTION In general, as shown if Fig. 1, a median strip 2 is installed at the median line 1 of an expressway 1 to protect a car from colliding with the other car coming from the opposite traffic road, during driving, when the car trespassed on the median line.
However, as such median strip is mainly made of cement and disposed on the roads, cars are damaged and passengers are injured seriously in a large accident of car collision, because there is little shock absorbing force.
Moreover, in case of a large car such as a dump truck, as the car is considerably higher than a median strip, an expected troubles of colliding head-on with a car coming in out of the opposite lane occur, because the car overturns toward the opposite road as the car banks to the opposite side of the strip, at the moment a tire of the car touches the lower side of the strip at high speed.
SUMMARY OF THE INVENTION The present invention has been made to solve the problems as mentioned above, and the object of the present invention is to provide a shock absorber for car collision on
the roads capable of protecting passengers from loss of life and injury, by installing in a median strip a structure of absorbing an impulsive force produced by car collision, when an accident occurs during driving.
The shock absorber for car collision on the roads of the present to solve such problems is characteristic of comprising : supporting bodies mounted on both side-walls of a median strip of the roads in the direction of the lane; moving bodies mounted on the exterior of said median strip; and a sliding means 30 embedded between said supporting bodies and said moving bodies, so as to move said moving bodies.
BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram showing a median strip of the roads.
Fig. 2 is a disassembled perspective view showing a construction of a shock absorber for car collision on the roads according to the present invention.
Fig. 3 is a perspective view showing an embodiment of supporting bodies in the construction of the shock absorber according present invention.
Fig. 4 is a disassembled perspective view showing a sliding means mounted on supporting bodies in the construction of a shock absorber according to the present invention.
Fig. 5 is a latitudinal sectional view showing a shock absorber according to the present invention whereto moving bodies of an embodiment applied.
Fig. 6 is a perspective view showing another embodiment of moving bodies in the construction of the shock absorber according present invention.
Fig. 7 is a latitudinal sectional view showing still another embodiment of moving bodies in the construction of the shock absorber according present invention.
Fig. 8 is a diagram showing blocking plates mounted on moving bodies of an
embodiment of the present invention.
Fig. 9 is a diagram showing blocking plates mounted on moving bodies of another embodiment of the present invention.
Fig. 10 is a longitudinal sectional view showing another embodiment of a shock absorber according to the present invention.
Fig. 11 is a longitudinal sectional view showing still another embodiment of a shock absorber according to the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the preferred embodiments illustrated in the attached drawings.
As shown in Fig. 2, a shock absorber according to the present invention comprises supporting bodies 20.21 mounted on both sidewalls of a median strip 10 of the roads in the direction of the lane, a plurality of sliding means 30 mounted on the supporting bodies 20,21 at distances lengthwise, and moving bodies 40 sliding along a median strip 10 in a condition of contacting the sliding means 30.
The supporting bodies 20,21, as shown in Fig. 2 and Fig. 4, are mounted detachably on the median strip 10 with anchors (not shown in the drawings), an example of clamping means.
The supporting bodies 20,21 include supporting parts 20a, 21a having a shape of and contacting parts 20b, 21b formed bending integrally with both ends of the supporting parts 20a, 21a and contacted with the median strip 10.
Preferably, the supporting bodies 20,21 are made of steel.
In the supporting bodies and the contact parts 20b, 21b, engaging holes 22a, 23a are formed to engage the anchors, an example of clamping means.
In this embodiment, an example is described as the supporting bodies 20,21 are mounted detachably on the median strip 10, but the supporting bodies 20,21 may be formed with the median strip when the strip 10 is manufactured, At in the latter case, the supporting bodies 20,21 is made of cement, the same material of the strip 10.
In the supporting parts 20a, 21a of the supporting bodies 20,21, shaft holes 20a-1, 21 a-1 are formed up and down.
Into the shaft holes 20a-1, 21a-1 formed in the supporting parts 20a, 21a, fixing shafts 25 are inserted forcibly, and both ends thereof are protruded to the exterior.
On both ends of each fixing shaft 25 protruded to the exterior, sliding means 30 is mounted.
In an embodiment of the present invention, the sliding means 30 are formed in a shape of rollers, and these rollers are mounted rotatively in the fixing shafts 25 via bearings 31.
Numeral 32 are stoppers of movement of the sliding means preventing the sliding means 30 from up-and-down movement on the fixing shafts 25, and numeral 33 are bolts, i. e. clamping means, inserted into the fixing hole 32a formed in the stoppers of movement of the sliding means 32, with the end parts thereof inserted into the fixing holes 25a formed in the fixing shafts 25.
As described above, since the sliding means 25 include bolts 32 and the stoppers of movement of the sliding means 33, the movements of the sliding means 25 can be prevented.
On the circumferential surfaces of the sliding means 30, buffering members 35 which absorb the impulsive force primarily before the impulsive force is delivered to the sliding means 30 are provided. The buffering members 35 are made of rubber or urethane.
A number of moving bodies 40, as shown in Fig. 2 and Fig. 3, are mounted on connection coupled along the median strip 10. The external shapes of the moving bodies 40 thus mounted are formed like the lower, front and rear ends thereof are opened. The moving bodies 40 are made of flexible, soft steel plates or plastics.
That is, the moving bodies 40 are unit bodies comprising a pair of sidewall plates 41 facing both walls of the median strip 10, and contacting with the sliding means 30, and connecting plates 42 connecting the upper parts of the sidewall plates 41.
On the side-wall plates 41 of the moving bodies 40, space maintaining sections 41a are provided, and the sliding means 30 are hung up the boundaries between the side-wall plates 41 and the space maintaining sections 41a.
The space maintaining sections 41a are formed with"]"or" [" shapes.
When the moving bodies 40 are covered on the median strip 10 by the space maintaining sections 41a, the sliding means 30 are contacted to the bent part of the space maintaining sections 41a, thus preventing the moving bodies 40 from descending any farther than the contacted state. Because of this, a predetermined distance can be maintained between the connecting plates 42 of the moving bodies 42 and the upper surfaces of the median strip 10.
The assembled appearance of the shock absorber for car collision according to the present invention thus constructed is shown as Fig. 5.
Next, operations of the present invention will be described.
Accidents often occur that a car departs from the driving lane and collides against a median strip 10, by dozing drive or by mistake of the driver.
In this case, the side of the car collides against sidewall plates of moving bodies mounted on the median strip 10, at an angle of inclination.
As mentioned above, an impulsive force produced at the moment the car
collides against the side-wall plates 41 of the moving bodies 40 is delivered thereto and absorbed primarily, then is delivered to the buffering members 36 provided in the sliding means 30 and absorbed secondly.
On the other hand, the moving bodies 40 are moved into the other moving bodies with friction at a predetermined distance, by rotations of the sliding bodies 30 caused by the impulsive force produced from the car collision, so that the impulsive force produced from the car collision is decreased compared with the case the car collided against a static structure, because the car collides against the moving bodies 40 that are moving.
Accordingly, destruction of the car and injury of the passengers can be remarkably decreased.
Above description has been about the constitutions and the operations related to an embodiment of the present invention.
Below, another embodiment of the present invention will be described with an example of moving bodies.
As shown in Fig. 6 and Fig. 7, a number of moving bodies 50 are mounted on connection coupled along the median strip 10. The external shapes of the moving bodies 50 thus mounted are formed like the lower, front and rear ends thereof are opened. The moving bodies 40 are made of flexible, soft steel plates or plastics.
That is, the moving bodies 40 are unit bodies comprising a pair of sidewall plates 51 facing both walls of the median strip 10, and contacting with the sliding means 30, and connecting plates 52 connecting the upper parts of the sidewall plates 51.
On the central parts of the side-wall plates 51 of the moving bodies 50, space maintaining sections 51a which are contacted with, and guided by the sliding means as well as separate the connecting plates 52 from the top surface of the median strip 10.
The space maintaining sections 51a are formed with"]"or" [" shapes.
When the moving bodies 50 are covered on the median strip 10 by the space maintaining sections 51a, the sliding means 30 are contacted to the bent part of the space maintaining sections 51a, thus preventing the moving bodies 50 from descending any farther than the contacted state. Because of this, a predetermined distance can be maintained between the connecting plates 52 of the moving bodies 42 and the upper surfaces of the median strip 10.
In the front of the sidewall plates 51, extended parts 51c are formed, and in the rear of the sidewall plates 51, reduced parts 51d are formed, so that the extended parts 51c are connected coupled to the contraction parts 5 1 d.
Preferably, the extended parts 51c are bent from the reduced parts 51d with a shape of"L".
Since a number of the moving bodies 50 are connected coupled so that the reduced parts 51d can be moved into the extended parts 51c of another moving bodies 51, by forming the extended parts 51c and the reduced parts 51d, as shown in Fig. 7, one ends of the moving bodies 50 push another moving bodies 50 as the reduced parts 51d of another moving bodies 50 move into the extended parts 51c of another moving bodies 50, by the impulsive force produced when colliding.
The time of movement of the reduced parts 51c of the moving bodies 50 into the extended parts 51d of another moving bodies 50 is determined by how fast the driver find out his or her car was collided.
That is, the faster the driver finds out the accident, the less the extent of coupling movement of the reduced parts 51d of the moving bodies 50, which received the external force by the car, into the extended parts 51d of another moving bodies shall be.
To the contrary, the less the driver finds out the accident, the more the extent of coupling movement of the reduced parts 5 Id of the moving bodies 50, which received the external force by the car, into the extended parts 51d of another moving bodies shall be.
As other embodiments related to the moving bodies of the present invention are similar to those described above, the detailed descriptions thereof will be omitted.
According to the shock absorber for car collision, since the impulsive force produced when car colliding can be decrease by the rotations of the sliding means as the moving bodies are moving, irrelevant to length of the time of the driver\'s finding out of the accident, minimizing destructions of cars and injuries of passengers can be obtained.
Fig. 8 shows another embodiment, wherein blocking plates 60 formed with through holes 61 are mounted on the connecting plates 42 of the moving bodies 40 of above mentioned embodiment.
Fig. 9 shows still another embodiment of the present invention, wherein blocking plates 60 formed with through holes 62 are mounted on the connecting plates 52 of the moving bodies 50 of above mentioned embodiment.
The blocking plates 60,62 shown in Fig. 8 and Fig. 9 serve to block off lights emitted from headlights of cars coming in out of the opposite lane, when driving, so as to free from a disturbing cause of driving.
Preferably, the length of the mounted blocking plates 60,62 on the connecting plates 42,52 suffices for preventing interferences from being produced, when the moving bodies coupled, without covering all the length of the connecting plates 42,52.
Fig. 10 shows still another embodiment of the present invention, wherein means for making the movement of the moving bodies 40,50 more smoothly are provided between the connecting plates 42,52 of the moving bodies 40,50 and the median strip
10.
The means include the supporting bodies 71 mounted on the median strip 10 integrally, and sliding means 72 mounted rotatively as keeping contact with the bottom surfaces of the connecting plates 42,52 of the moving bodies 40,50.
Fig. 11 shows still another embodiment of the present invention, wherein guiding members 73 made of reinforced plastics of very little friction force are provided on both sides of the median strip 10. The moving bodies 40,50 may be mounted movably along the guiding members 73, with covering the median strip 10.
Fig. 11 shows still another embodiment of the present invention, wherein another buffering members 80 are provided on the side-wall plates 41,51, so that the impulsive force produced when a car collision occurs can be absorbed firstly, thus preventing destruction of cars, protecting lives of passengers, and minimizing injuries of passengers.
As described above, the shock absorber for car collision on the roads of the present invention has been improved of the structure so as to absorb the impulsive force of car collision, thus protecting loss of lives and preventing injuries of passengers.
Besides, when a bus or dump truck is driving in front of one\'s car, and an unavoidable event occurs that the car cannot continue driving because of an expected accident of the front bus or truck, the car may happen to drive toward the median strip, but suffers considerably less damage.
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