JP4347596B2 - Cushion member to be attached to the vehicle protection fence - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cushion member attached to a vehicular protective fence provided on a road.
[0002]
[Prior art]
A conventional vehicular protective fence is a structure in which an elastic body is attached to a column that stands on a shoulder of a road, and mitigates an impact at the time of a collision (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 7-238518 (Page 2, FIGS. 2 to 3)
[0004]
Patent Document 1 will be described in detail with reference to the drawings.
8 (a) and 8 (b) are explanatory views of a conventional shock absorber integrated guard cable (a copy of FIG. 2 of Patent Document 1 is (a) and a copy of FIG. 3 is (b)). .
The shock absorber-integrated guard cable has a column 1 on a road shoulder, a buffer metal plate 4 and a steel cable 2 fixed to the column 1, and a synthetic resin foam elastic body 6 (reinforcing metal plate pieces 8 and 8b) on the steel cable 2. , 8c), the synthetic resin foam elastic body 6 is bonded to the buffer metal plate 4, and the fixing rod 5 is inserted into the through hole of the synthetic resin foam elastic body 6.
[0005]
In the above-mentioned shock absorbing material integrated guard cable, the shock absorbing metal plate 4 and the synthetic resin foamed elastic body 6 can effectively absorb the impact in the event of a car collision. Further, the fixing rod 5 can prevent the synthetic resin foam elastic body 6 from falling off.
[0006]
[Problems to be solved by the invention]
There is an idea that shock absorbers should be attached to guard cables (guard fences for vehicles) for the purpose of absorbing shocks in the event of an accident. However, in the above structure, the buffer metal plate 4, the fixing rod 5, and the reinforcing metal plate pieces 8, 8b, 8c are necessary, the structure is complicated, and the number of parts increases. Further, an operation process for wrapping the reinforcing metal plate pieces 8, 8 b, 8 c with the synthetic resin foamed elastic body 6 is required, and it takes time to manufacture the synthetic resin foamed elastic body 6. Therefore, it becomes a factor which raises production cost.
Further, the width of the road is reduced by the buffer metal plate buffer distance B (FIG. 3) of the buffer metal plate 4, and similarly, by the synthetic resin foam elastic body radius H (FIG. 3) of the synthetic resin foam elastic body 6 Since the area of the road becomes smaller, there is a concern that it will hinder traffic.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to provide a cushion member attached to a vehicular protective fence that can reduce the production cost and can increase the amount of shock absorption without hindering traffic.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, in claim 1, a cushion member that can be retrofitted to a vehicle protective fence formed by standing posts at predetermined intervals on a road shoulder and spanning guard rails or guard wires over these posts, This cushion member is an elastic column having a substantially rectangular cross-section with different vertical and horizontal lengths in plan view, and the amount of protrusion from the guard rail or guard wire to the roadway side is such that the long side is parallel to the guard rail or guard wire. When the surface facing the road surface of the elastic column is a front surface including a long side, the guard rail or the guard wire is formed at the corner between the upper surface and the front surface of the elastic column. lateral groove is fitted is formed in, fitted to the strut located under the guard rail or guard wires on the back of the elastic body pillar Characterized in that it is a columnar block the longitudinal grooves are formed that.
[0009]
By allowing the front of the long side to face the road surface, the protrusion from the guard rail or the guard wire is reduced, and the amount of shock absorption from the oblique lateral direction is increased.
[0011]
The cushion member is attached to the vehicle protection fence by fitting the lateral groove provided in the elastic column to the guard rail or the guard wire and fitting the vertical groove provided on the back surface to the support. That is, the cushion member is only an elastic column, and the number of parts is one.
According to a second aspect of the present invention , the height of the front surface of the elastic column is a height that substantially reaches the guard rail or the guard wire from the road surface. As a result, the cushion member is formed with a lateral groove that fits into the guard rail in the vicinity of the front, with a height that almost reaches the guard rail from the road surface, so the amount of protrusion from the guard rail to the roadway side is small, and it will not hinder traffic Absent.
According to a third aspect of the present invention , the elastic column includes a lower surface that is in contact with the road surface side, and an inclined portion that is formed on the lower surface at a predetermined angle and continues to the back surface. As a result, when the cushion member is attached, the amount of interference between the lower surface and the road surface is reduced, and the cushion member can be easily attached alone.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a perspective view of a vehicular protective fence according to the present invention. The vehicular protective fence 10 includes a pillar 13... The same applies to the following.) A guard rail 14 is stretched over and is a protective fence for automobiles and motorcycles on the road surface 15. 20 and 20 are cushion members.
[0013]
FIG. 2 is a perspective view of the cushion member according to the present invention. The cushion member 20 is an elastic column 21 having a substantially rectangular cross section, and includes a front surface 22 facing the road surface 15, a back surface 23 parallel to the front surface 22, 1 side surface 24, second side surface 25, bottom surface 26, top surface 27, lateral groove 31 formed to fit the guard rail 14 at the corner 28 of the top surface 27 and the front surface 22, and the back surface 23 is fitted to the column 13. It is a columnar block provided with the longitudinal groove 32 formed so that it may make it match.
[0014]
The material of the cushion member 20 is a foamed plastic, and examples of the foamed plastic include foamed polystyrene (foamed polystyrene), foamed polypropylene, and soft polyurethane foam (polyurethane). In particular, it is desirable to use foamed polystyrene (foamed polystyrene). Styrofoam can be provided at a relatively low cost.
Next, the cushion member will be described in more detail.
[0015]
FIG. 3 is a view taken in the direction of arrow 3 in FIG. 2, showing the front 22 and the back 23 on the left and right of the drawing, and the upper surface 27 and the lower surface 26 on the upper and lower sides of the drawing. The lower surface 26 is a surface in contact with the road surface 15 side, and has an inclined portion 33 formed at a predetermined angle θ.
The lateral groove 31 includes a lower portion 34 formed at a predetermined distance H from the road surface 15 and a fitting portion 35 that fits the guard rail 14.
[0016]
FIG. 4 is a view taken in the direction of arrow 4 in FIG. 3, and shows a substantially rectangular cushion member 20 formed by the front surface 22, the back surface 23, the first side surface 24, and the second side surface 25. The dimension from the two side surfaces 25 to W is set to W, the dimension from the front surface 22 to the rear surface 23 is set to T, a chamfer 36 is formed between the front surface 22 and the first side surface 24, and the front surface 22 and the second side surface are formed. 25 shows that a chamfered portion 37 is formed. Here, the dimension W is the horizontal length of the cushion member 20, and the dimension T is the vertical length of the cushion member 20.
[0017]
The vertical groove 32 includes an arc portion 41 fitted to the support column 13 and fastening portions 42 and 42 formed continuously from the arc portion 41. The tightening portion 42 was formed by raising a predetermined distance S with respect to the diameter of the arc portion 41. C1 indicates a horizontal axis passing through the center of the arc portion 41.
[0018]
The chamfered portion 36 is a surface that is substantially perpendicular to the line C2 that is turned by an angle β from the horizontal axis C1, and is a surface that receives an impact from an oblique lateral direction. Here, when the intersection point where the chamfered portion 36 and the line C2 intersect is a point E, and the intersection point where the arc portion 41 and the line C2 intersect is a point F, the dimension from the point E to the point F is L. That is, the dimension between the column 13 and the chamfered portion 36 was set to L, and the thickness of the cushion member 20 in the angle β direction was increased. The angle β is about 30 °.
The chamfered portion 37 is the same as the chamfered portion 36 and will not be described.
[0019]
Next, the operation of the cushion member attached to the vehicle guard fence described above will be described. FIGS. 5A to 5D are first operational views of the cushion member attached to the vehicle guard fence according to the present invention.
In (a), the cushion member 20 is placed near the support post 13 of the vehicle guard fence 10 provided on the shoulder 12 of the road 11 to prepare for attachment. The material of the cushion member 20 is foamed plastic, and since the cushion member 20 is lightweight, it is very easy to carry. Moreover, since the number of parts is one, preparation is very easy.
[0020]
In (b), the cushion member 20 is moved by one operator, and the vertical groove 32 is fitted to the column 13 as indicated by the arrow (1) while the horizontal groove 31 is applied under the guard rail 14. Subsequently, the cushion member 20 is pushed in, and the vertical groove 32 is further fitted into the support column 13.
[0021]
In (c), while hitting the lower part of the front surface 22 of the cushion member 20 with the resin hammer 45, the cushion member 20 is pushed to the end while sliding the inclined portion 33 on the road surface 15. Since the inclined portion 33 is formed on the lower surface 26 of the cushion member 20, the amount of interference between the lower surface 26 and the road surface 15 is reduced, and the cushion member 20 can be easily attached alone.
[0022]
In (d), the cushion member 20 is completely fitted to the support column 13, and the attachment of the cushion member 20 is completed. At this time, since the fitting portion 35 of the lateral groove 31 extends along the guard rail 14, the cushion member 20 does not rotate (the column 13 is the central axis), and the cushion member 20 can be automatically positioned. On the other hand, since the vertical groove 32 is fitted to the support column 13, the cushion member 20 can automatically follow the support column 13 to position the cushion member 20. Therefore, it is not necessary to adjust the positioning of the cushion member 20.
[0023]
Moreover, the cushion member 20 can be attached by fitting the vertical groove 32 to the support | pillar 13, and attachment of the cushion member 20 does not require time, and can improve work efficiency.
[0024]
Furthermore, the cushion member 20 can be retrofitted to the existing vehicle protection fence 10 at a later date using (a) to (d) shown in FIG. Moreover, naturally the cushion member 20 can be attached also to the guard fence 10 for vehicles under installation construction. That is, the parts of the existing vehicle guard fence 10 can be used as they are for attaching the cushion member 20, and no special parts are required. Therefore, the production cost of the cushion member 20 can be reduced.
In addition, the cushion member 20 is made of only foamed plastic, and the number of parts is one, so that the production cost can be reduced.
[0025]
FIG. 6 is a second operation view of the cushion member attached to the vehicle guard fence according to the present invention.
When the cushion member 20 is attached to the column 13 of the vehicle guard fence 10 provided on the shoulder 12 of the road 11, for example, when the two-wheeled vehicle 46 slips while traveling and the driver 47 falls (white x mark) and slides. The cushion member 20 can absorb the impact of the driver 47.
[0026]
In detail, when the driver 47 falls the motorcycle 46 and the driver 47 slides, the driver 47 slides forward in the traveling direction diagonally, but the chamfered portion 36 is inclined diagonally in the lateral direction (angle). Since it is formed in the direction of β), the driver 47 sliding forward can be received by the chamfer 36.
[0027]
Further, since the chamfered portion 36 is as thick as the dimension L up to the support column 13, the amount of shock absorption can be increased.
Furthermore, since the cushion member 20 is formed with the lateral groove 31 fitted to the guard rail 14 in the vicinity of the front face 22, the amount of protrusion from the guard rail 14 to the roadway side is small, and traffic is not hindered.
[0028]
Since the tightening portions 42 and 42 are formed in the longitudinal groove 32 of the cushion member 20, the tightening portions 42 and 42 interfere with the column 13 and can be prevented from coming off.
Since the lateral groove 31 is formed in the cushion member 20, the fitting portion 35 of the lateral groove 31 is fitted to the guard rail 14, and the cushion member 20 can be prevented from rotating (the column 13 is the central axis).
[0029]
FIG. 7 is a perspective view of an essential part of another embodiment and corresponds to FIGS. 1 and 2. The same components as those in the embodiment shown in FIGS. 1 and 2 are given the same reference numerals and description thereof is omitted.
The vehicular protective fence 10 </ b> B is obtained by bridging guard wires 54... On a pillar 13 </ b> B that stands on the shoulder 12 of the road 11 with a predetermined interval P. 20B is a cushion member.
[0030]
The cushion member 20B is an elastic column 21 having a substantially rectangular cross section, and includes a front surface 22 facing the road surface 15, a rear surface 23 parallel to the front surface 22, a first side surface 24, a second side surface 25, a lower surface 26, The upper surface 27, a lateral groove 31 formed so as to be fitted to the guard wire 54 in the corner 28 on the upper surface 27 and the front surface 22, and a vertical groove 32B formed so as to be fitted to the support column 13B on the back surface 23 were provided. It is a columnar block.
The vertical groove 32B is obtained by adding a relief portion 55 to the vertical groove 32 (see FIG. 2).
[0031]
As shown in FIG. 7, the lateral groove 31 is formed in the elastic body column 21 of the cushion member 20B so as to fit the guard wire 54, and the longitudinal groove 32B is formed so as to fit the support 13B. The cushion member 20B can be attached to the vehicular protective fence 10B using the. As a result, it is possible to flexibly deal with existing vehicle protection fences (protection fences) and to promote the spread.
[0032]
The cushion member 20 of FIG. 3 shown in the embodiment of the present invention is integrally formed from the road surface 15 to a height (distance H) that substantially reaches the guard rail 14, but is not limited to a single object. It is also possible to divide H and stack the divided blocks to form the cushion member.
Further, although the cushion member 20 is formed of a single layer, it may be formed of a multilayer such as an annual ring.
[0033]
The form of the vehicle guard fence shown in the figure is an example, and is not particularly limited, and is arbitrary within the standard.
For example, the shape of the support pillars 13 and 13B of the vehicle protection fences 10 and 10B is not limited to a pipe (pipe), and the structure of parts for attaching the guard rail 14 and the guard wire 54 is not particularly limited.
Moreover, it is not limited to a thing with a cross-sectional unevenness | corrugation like the guardrail 14 of FIG. 1, A cross-sectional shape, such as a groove shape (concave), a waveform, and a mountain shape (angle), can be fitted to the horizontal groove 31. FIG.
[0034]
Furthermore, the number of guard wires 54 fitted in the lateral grooves 31 is not limited to one, but is arbitrary. For example, when the pitch between the guard wires 54 and 54 is small (narrow), it is possible to fit two guard wires 54 into the lateral groove 31. In addition, it is also possible to fit a pipe (pipe) to the lateral groove 31 in addition to the guard rail 14 and the guard wire 54.
[0035]
【The invention's effect】
The present invention exhibits the following effects by the above configuration.
According to the first aspect of the present invention, there is a cushion member that can be retrofitted to a vehicle guard fence in which pillars are erected on the road shoulder at predetermined intervals, and guard rails or guard wires are spanned over these pillars. The elastic column has a substantially rectangular cross section with different vertical and horizontal lengths, and the amount of protrusion from the guard rail or guard wire to the roadway side is along the guard rail or guard wire so that the long side is parallel to the guard rail or guard wire. When the surface facing the road surface of the elastic column is a front surface including a long side, a lateral groove that fits a guard rail or a guard wire is formed at the corner between the upper surface and the front surface of the elastic column. is, longitudinal grooves for fitting to the strut located under the guard rail or guard wires on the back of the elastic body pillar is formed Since Jo blocks, to reduce the amount of out leaf blade to the roadway side of the guardrail. Therefore, it will not hinder traffic.
[0036]
In addition, if the long side is attached so as to face the road surface, the thickness of the cushion member increases in the direction along the lane, so for example, it is possible to cushion what slides on the road surface and slides obliquely from the traveling direction to the lateral direction. It can be received at a thick part of the member, and the amount of shock absorption can be increased.
[0037]
In claim 1 , when the surface facing the road surface of the elastic column is a front surface including a long side, a lateral groove to be fitted to a guard rail or a guard wire is formed at a corner between the upper surface and the front surface of the elastic column, and the elastic body Since it is a columnar block that has a vertical groove that fits on the back of the pillar and a support rail located under the guard rail or guard wire , the vertical groove is fitted into the support fence of the vehicle guard, and the cushion member is securely attached to the guard fence of the vehicle. At the same time, the cushion member can be prevented from rotating by fitting the lateral groove to the guard rail. As a result, it can comprise only a cushion member and can make a number of parts into one point. Therefore, production cost can be reduced.
According to the second aspect of the present invention , since the height of the front surface of the elastic column is formed so as to reach the guard rail or the guard wire from the road surface, the lateral groove that fits the guard rail at a height that substantially reaches the guard rail from the road surface is the front surface. The amount of protrusion from the guardrail to the roadway side is small, and there is an advantage that traffic is not hindered.
In the third aspect of the present invention , the elastic column includes a lower surface that is in contact with the road surface side, and an inclined portion that is formed on the lower surface at a predetermined angle and continues to the rear surface. Therefore, when attaching the cushion member, the lower surface and the road surface The amount of interference can be reduced, and the cushion member can be easily attached by one person.
[Brief description of the drawings]
FIG. 1 is a perspective view of a vehicular protective fence according to the present invention. FIG. 2 is a perspective view of a cushion member according to the present invention. FIG. 3 is a view taken along an arrow 3 in FIG. FIG. 5 is a first action diagram of a cushion member attached to a vehicle guard fence according to the present invention. FIG. 6 is a second action diagram of a cushion member attached to a vehicle guard fence according to the invention. Perspective view of main part [FIG. 8] Explanatory drawing of conventional shock absorber integrated guard cable [Explanation of symbols]
DESCRIPTION OF SYMBOLS 10,10B ... Guard fence for vehicles, 12 ... Road shoulder, 13, 13B ... Post, 14 ... Guard rail, 15 ... Road surface, 20, 20B ... Cushion member, 21 ... Elastic pillar, 22 ... Front, 23 ... Back, 27 ... Upper surface, 28 ... Corner, 31 ... Horizontal groove, 32, 32B ... Vertical groove, 54 ... Guard wire, P ... Predetermined interval, T ... Vertical length, W ... Horizontal length.

Claims (3)

A cushion member that can be retrofitted to a vehicle protective fence formed by standing pillars at predetermined intervals on the road shoulder and spanning guard rails or guard wires over these pillars,
The cushion member is an elastic column having a substantially rectangular cross section with different vertical and horizontal lengths in a plan view, and has a long side parallel to the guard rail or the guard wire and protrudes from the guard rail or the guard wire to the roadway side. When the surface facing the road surface of the elastic column is a front surface including the long side, the corner is formed between the upper surface and the front surface of the elastic column. It is a columnar block in which a lateral groove to be fitted to the guard rail or the guard wire is formed, and a vertical groove to be fitted to the column located below the guard rail or the guard wire is formed on the back surface of the elastic body column. Cushion member to be attached to the vehicle protective fence. The height of the front of the elastic body pillar, the cushion member attached to a vehicle safety barrier of claim 1 Symbol mounting, characterized in that the road surface is substantially reaches the height to the guard rail or guard wire. The elastic body pillars, and a lower surface in contact with the road surface, the vehicle according to claim 1 or claim 2, wherein in that it comprises an inclined portion continuous to the rear is formed at a predetermined angle to the lower surface, the Cushion member attached to the protective fence.

Images