DE2733458A1 - Plastics post for fixing e.g. road signs - comprises hard foam hollow core coated with solid plastics, which has bottom section fitted with wedging fins for securing in ground - Google Patents

Abstract

Plastics post for mounting road signs etc. comprises base body of low-density, large-pore, hard foam and is plastics coated. The coating improves strength and dimensional stability and consists pref. of hardenable resin contg. a reinforcing filler pref. chopped glass-fibres. Prod. need not be painted yet and is highly weather-resistant. Good mechanical strength and impact-resistance are provided although of partly cellular, and hollow, design.

Description

Plastic road delineator posts

The subject matter of the invention relates to a road marker post made of plastic.

There are known delineators which a) are made of 3eton or wood and have been given a subsequent appropriate paint.

b) made of plastic - mainly PVC - are made in different Versions consisting of one piece to be buried in or of two details consisting, with one part - the core - buried and a second part slipped over it will.

c) also made of plastic -PVC- consisting of an ãtülphiilse and is used in conjunction with a buried pole core.

The delineator posts mentioned under a) have become altogether due to the Problem of the paint on the given substrate and in the free @ n weathering, also not proven under the aspect of machine cleaning.

The statements made under b) and c) show the above deficiencies does not appear, as the material is colored through. However, 0Ks show Disadvantages which obviously originated in the manufacture of these posts in that this is mostly after the extrusion blow molding process with a view to a rational production @ created ern a thinning of the wall thickness, so that the structural strength at this point is not is sufficient and destruction occurs prematurely.

Likewise, destruction is from apparent stress corrosion cracking ds material or through the onset of material embrittlement within the free weathering given.

Equally, the sleeve post represents a partial solution Corresponding wood core posts - if also made of high quality and therefore expensive wood - subject to nevertheless of rotting in the earth.

Since a road marker usually has a black ring, that with conventional plastic posts mostly by means of a so-called shrink tube is accomplished, is in addition to the cost of materials with the required quality An additional effort is still required, which has a relatively high overall cost causes.

The object of the invention proposed here aims to improve disadvantages listed above.

Using an extremely light but sufficiently strong one Plastic - preferably a plastic rigid foam - is used when the wall thickness is required created a base body for a road marker post. This basic body is with a hardening plastic - preferably a plastic resin - coated in embedded in the reinforcing agent, preferably glass fiber chips can be.

Due to this so-called sandwich structure, a more solid shape is created Whole body with a relatively large and constant @ and strength and equally great resilience.

It is stated here that at the same time a continuous coloring the plastic cover layer is possible, but also overall, in particular the black marking ring, made possible by means of an additional layer of paint will. One should think of so-called luminous paint coatings to make the effect more traffic-related Increase security concerns.

At the same time, the post described here should be a complete @ post can also be introduced into the ground without any expected rotting @ shortening of service life. For this purpose, the lower area of the post was using so-called locking wedges are provided to make it easy to pull them out of the ground to prevent.

Listed details and features are in the accompanying drawing shown. It shows: FIG. 1 the road delineator post 1 in its entirety. recognizable The locking wedges in the lower area are made 4th

Fig. 2 shows a cross section through the post 1 to the constructive To clarify the structure. @ Shown is the thick-walled base body 2, as well as the optionally reinforced plastic resin cover layer 5 and 5 '.

Fig. 3 is an average of the lower post area; ies in the ground 5, the locking wedges 4 being shown.

The difficult pulling out against the direction of the arrow becomes apparent R from the ground.

L e r s e i t e

Claims (3)

S c h u t z a n s p r ü c h e 1) All-plastic street posts d R d u r c h g e k e n n -z e i c h n e t that for the creation of a corresponding requirement Base body 2 made of a light, large-pored, voluminous plastic - preferably a hard foam plastic is created. 2) all-plastic road post according to claim 1 d a d u r c h g e k e n n 3 e i c h n e t that the shaping base body 2 has a cover layer 5 and 3 @, which functionally increases the geological strength and preferably from one The hardening plastic resin consists of the reinforcement laminate, if necessary - are preferably made of glass fiber chips. 3) all-plastic road marker post according to claim 7 and 2 d a d u It is noted that the complete post 1 in the lower area contains a variety of locking wedges.