Road structure – process – or apparatus – Traffic director – Yielding
Patent
1980-12-04
1982-12-21
Byers, Jr., Nile C.
Road structure, process, or apparatus
Traffic director
Yielding
40607, 52298, E01F 900, E04H 1222
Patent
active
043646883
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a base for road sign posts and the like.
It is a principal object of the invention to provide a base of the kind mentioned, which is easy to erect, either for permanent or temporary use. It is further an object of the invention to provide a base, which is built in such a manner that as little damage as possible will be caused by a vehicle running into the post supported by the base.
This object is reached by means of the invention, which essentially is characterized by the anchoring base comprising an upwardly open, cup-shaped bottom component and in mounted condition of the post a weight housed in the hollow space of said bottom component, which weight in its turn supports the post in question, the weight and the base being mutually connected by means of a breakable connecting pin inserted into mutually coaxially located holes of said two components.
The invention will be described in the following, reference being made to the accompanying drawings, in which
FIG. 1 is a cross-sectional view of a base made in accordance with a first embodiment of the invention,
FIG. 2 is a schematic view of the same cross-section showing the post in different prostrating stages,
FIG. 3 is an exploded view of the same base,
FIG. 4 is a cross-sectional view corresponding to the one of FIG. 1 through the mid portion of a base made according to a second embodiment of the invention,
FIG. 5 is a cross-sectional view corresponding to the one of FIG. 4 through a base according to a third embodiment,
FIG. 6 is a bottom view of a detail illustrated in FIG. 4, and
FIG. 7 is a top view of the same detail illustrated in FIG. 4.
The base illustrated in FIGS. 1-3 and made in accordance with the invention comprises a bottom component 1, a top component 2 of heavy material acting as a weight, and a post 3 supported by said top component, only the lower portion of said post being shown in the drawings. The weight 2 is provided with a central hole, which substantially has the same diameter as the outer diameter of the post 3. The weight 2 is held to the post 3 by means of radially interspaced pins 4, which traverse the weight 2 and radial bores made in the post 3. A body 5 of annular shape is provided in the interior of the post at its lower end, into which body the pins 4 also extend. The annular body has a central bore, in which a centre-sleeve 10 is in the mounted condition inserted, said centre-sleeve also extending down through a corresponding bore of the bottom component 1. The weight 2 rests in a recess 6 in the bottom component 1. This recess has a comparatively flat bottom portion 6a, a sloping bottom portion 6b, which has the form of the convex surface portion of a frustrum of a cone, and a substantially vertical top portion 6c. The semispherical weight 2 has a top side, which substantially extends in radial direction relative to the post 3. In order to impede penetration of rainwater and dirt into the recess 6 of the bottom component, the interspace between the weight 2 and the wall portion of the bottom component 1 is bridged by a lid 7, in cross-section having the form of an inverted U, the inner flange 7a of said lid extending down into an annular groove in the weight 2 and the outer flange 7b of said lid extending downwards along the outside 8 of the bottom component. A central bore 9 is made in the bottom component and extends coaxially to the sleeve 10, said bore in the first place being intended for passage of a wire, but which of course also can serve the purpose of a drainage means. The bore 9 is of a diameter, which is smaller than the one of the bore, to which it connects, and in which the sleeve 10 is inserted. By this arrangement a shoulder is formed at the passage between the two bores, against which shoulder the lower end of the sleeve rests. The bottom component 1 is suitably made of a comparatively heavy material, by way of example concrete, and may either be cast in position in the road bed or be provisionally placed on top of the same. The weight 2 is likewise suitably made of co
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