JPH0632963Y2 - Roadway median strip device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a central separator device installed on a center line of a roadway.

[Conventional technology]

Some median strips installed on the center line of a road such as two-lane facing each other have metal blocks called concrete or chatter bars installed at certain intervals. It is also practiced to install poles made of synthetic resin at a certain interval.

However, concrete or metal blocks cause ground vibration when a vehicle hits them, and
Blocks may fly out of the road due to shocks and injure people or objects, so use of them is now prohibited. Further, since the synthetic resin pole does not have a function of returning the vehicle to the traveling lane, it is impossible to prevent a collision with an oncoming vehicle.

[Problems to be solved by the device]

The present invention solves the problems of the prior art as described above, and when the vehicle rides on the medium separation zone, it vibrates the vehicle to call attention to the vehicle, prevents ground vibration at that time, and prevents the vehicle from facing. It is an object of the present invention to provide a median strip device that prevents the vehicle from deviating to the lane, prevents a collision with a vehicle traveling in an oncoming lane, and has good visibility.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention has a width that fits in the center line of the roadway and a length that is at least several times that width, and its front and rear ends are aligned in the traveling lane along the traveling direction of the vehicle. The slender central separator which is inclined in the returning direction is composed of an elastic member, and the central separator has fixing flange portions at both ends, and a chevron portion and a flat portion are provided between the flange portions at both ends thereof. And a pedestal portion are alternately formed in a state of being inclined along the inclined surfaces of both ends, and a retroreflector is fixed to at least the inclined side walls of the chevron portions at both ends, and further, at least the flange portion. It is characterized in that a metal plate is buried, and the median strip is fixed to a buried leg fixed to the road surface via the metal plate and bolts.

In addition, the present invention forms a fixing hole reaching a metal plate and a metal plate and a bolt insertion hole below the flange part or an intermediate pedestal part, and inserts a bolt into the fixing hole and the bolt insertion hole. A spring is interposed between the head of the bolt and the metal plate, and the embedded leg is screwed to the bolt projecting on the lower surface of the median strip to compress the spring, while fixing the embedded leg to the road surface. A hole is formed, an adhesive is filled in the hole, and a buried leg is inserted into the adhesive to set the median strip on the road surface. By solidifying the adhesive, the median strip is placed on the road surface. It is characterized by being fixed and installed.

[Operation] Since the central divider device of the present invention has the above-described structure, when a running vehicle rides on the central divider device, the mountain portion and the flat pedestal cause vibrations to the vehicle. And the shock at that time is damped by the central separator that is an elastic body to attenuate the vibration given to the ground,
Moreover, since both the mountain portion and the pedestal portion are inclined in the direction of returning to the traveling lane, the vehicle is deviated from the traveling lane due to the wheels being guided so as not to proceed to the oncoming lane, and the vehicle collides with the vehicle traveling in the oncoming lane. And the retroreflector fixed to the inclined side wall of the chevron can provide clear visibility.

Further, since the structure for installing the median strip of the present invention has the above-described structure, the embedded leg is previously attached to the bottom surface of the median strip, and the embedded leg is inserted into the adhesive of the fixing hole. Can be installed easily and easily by curing,
After installation, when the vehicle rides on this, the central divider is made of an elastic material and the bolts are pressed against each other via springs, which makes it difficult for the bolts to loosen, and even if it does loosen, tighten the bolts easily. It can be fixed.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a plan view showing an embodiment of a median strip device according to the present invention, FIG. 2 is a front view of the same, and FIG. 3 is a II of FIG.
FIG. 4 is an enlarged sectional view taken along line I-III, and FIG. 4 is an enlarged sectional view taken along line IV-IV in FIG.

In these figures, 1 has a width (for example, 20 cm) that fits in the center line of the roadway and a length that is at least several times as large as that width (for example, 1 m 14 cm to 1 m 29 cm), and the front and rear ends thereof are in the traveling direction of the vehicle. Is a slender central divider strip inclined at an angle of, for example, 45 ° in the direction of returning to the traveling lane, and has fixing flange portions 1a and 1a ′ at both ends, and flange portions 1a and 1a ′ at both ends thereof A plurality of chevron portions 1b and pedestal portions 1c are alternately formed in a state of being inclined at the same angle as the inclination of the both ends, and are integrally formed by an elastic body having abrasion resistance. For example, the median strip is made of synthetic rubber having a hardness of 65 °.

More specifically, the thickness of the flange portion 1a and the pedestal portion 1c is 3 cm, and the height of the chevron portion 1b (height from the pedestal portion) 6 to 8
cm, width of flanges 1a and 1a '5 cm, angle of inclined side wall
30 ° chevron 1b width 11 cm, pedestal 1c width 20-25
In cm, a central separating band 1 having four chevron portions and three pedestal portions is integrally molded by an elastic body having abrasion resistance such as synthetic rubber. Then, in the molding, the flange portions 1a and 1a ',
If necessary, a metal plate 2 such as an iron plate is embedded in the intermediate pedestal portion 1c.

Although not shown in FIGS. 1 and 2, the top surface of the chevron portion 1b and the top surface of the pedestal portion 1c, as shown in the enlarged sectional view of FIG. In addition, a desired number of slip grooves 3 are formed at appropriate intervals.

Further, elastic retroreflectors 4 such as polyethylene film are fixed to the inclined side walls of the chevron portions 1b at both ends.

The median strip device according to the present invention uses the metal plate 2 to fix the median strip 1 to the road surface. A specific example is shown in FIG. As shown in FIG. 4, a fixing hole 5 reaching the metal plate 2 from the upper surface is formed in the flange portion 1a (and an intermediate pedestal portion), and a metal plate 2 and a bolt insertion hole 6 therebelow are formed. The bolt 7 is inserted into the fixing hole 5 and the bolt insertion hole 6 from above, and the washer 8 at the head of the bolt is inserted.
The coil spring 9 is interposed between the metal plate 2 and the metal plate 2, and the anchor-shaped embedded leg 10 is screwed to the bolt protruding from the lower surface to compress the coil spring 9. Then, a hole 12 for fixing the embedded leg is formed on the road surface 11, an adhesive 13 is filled in the hole 12, the embedded leg 10 is inserted into the adhesive, and the adhesive 13 is solidified as it is to form a central separator. Fix 1 to the road surface.

The roadway median strip device of the present invention has the above-described structure. Therefore, when a vehicle wheel comes into contact with or collides with the device of the present invention, the median strip is long and its material is elastic. The contacted or collided portion is compressed and plastically deformed to absorb and disperse the energy caused by the impact, thereby suppressing the vibration applied to the road surface and mitigating the impact received by the vehicle. In the separation zone, a plurality of mountain portions and pedestals that are inclined in the direction of returning to the traveling lane along the traveling direction of the vehicle are alternately formed, so that vibration is given to the vehicle to call attention, and The wheels fitted to the pedestal are guided in the direction of returning to the traveling lane side by the inclination of the chevron portion, thus preventing the vehicle from deviating from the traveling lane and the collision with the vehicle traveling in the opposite lane. It is possible.

Further, since the central divider device according to the present invention has the retroreflector fixed to the sloped side wall of the chevron portion as described above, it has good visibility especially at night and can contribute to smooth running. .

Further, in the median strip device of the present invention, since the material of the median strip is elastic and the fixing bolt presses the median strip to the road surface through the compression spring, the wheel contact is prevented. Or, it is possible to minimize the slack of the bolt when it receives a shock due to a collision.

[Effect of device]

As described above, according to the present invention, it is possible to prevent deviation from the traveling lane when a vehicle comes into contact with or collide with, and to prevent collision with a vehicle traveling in an oncoming lane, to draw attention, and to absorb or disperse the impact. There is an effect that can be made.

[Brief description of drawings]

FIG. 1 is a plan view, FIG. 2 is a front view, FIG. 3 is an enlarged sectional view taken along the line III-III in FIG. 1, and FIG. FIG. 4 is a sectional view taken along the line IV-IV in the figure. 1 ... Median strip, 1a, 1a '... Flange part, 1b ... Angle part, 1c ... Pedestal part, 2 ... Metal plate, 3 ... Recessed groove, 4 ...
… Retroreflective plate, 5… Fixing hole, 6… Bolt insertion hole,
7 ... Bolt, 8 ... Washer, 9 ... Spring, 10
…… Buried legs, 12 …… Holes, 13 …… Adhesive.

Claims (4)

[Scope of utility model registration request] 1. A slender central separation having a width that fits in a center line of a roadway and a length that is at least several times that width, and is inclined at both front and rear ends thereof in a direction returning to the traveling lane along the traveling direction of the vehicle. The strip is made of an elastic member, and the central separating strip has fixing flange portions at both ends, and a chevron portion and a pedestal portion are provided between the flange portions at both ends thereof along the inclination of the both ends. Are alternately formed in a tilted state, and a retroreflector is fixed to at least the sloped side walls of the chevron portions at both ends, and a metal plate is embedded in at least the flange portion, and the metal plate is used as a bolt. A median strip device for a roadway, characterized in that a median strip is fixed to an embedded leg that is fixed to the road surface via. 2. The method according to claim 1, wherein a metal plate is embedded in an intermediate pedestal portion of the elongated median strip, and the intermediate pedestal portion in which the metal plate is embedded together with the flange portion is fixed to an embedded leg fixed to a road surface. Median strip device on the roadway. 3. A fixing hole reaching a metal plate and a metal plate and a bolt insertion hole therebelow are formed in a flange portion or an intermediate pedestal portion, and a bolt is inserted into the fixing hole and the bolt insertion hole, and at the same time. A spring is interposed between the head of the bolt and the metal plate, and the embedded leg is screwed to the bolt projecting on the lower surface of the median strip to compress the spring, while
Form a hole for fixing the embedded leg in the road surface, fill the hole with an adhesive, insert the embedded leg into the adhesive and install a center separation band, and solidify the adhesive to separate the center. The installation structure of the median strip device of a roadway according to claim 1 or 2, wherein the strip is fixed to a road surface. 4. A plurality of recessed grooves are formed in the top portion and the pedestal portion of the chevron portion of the median strip.
The median strip device of the roadway described in.