초록 ▼

A composite fiber and resin sign post for displaying highway signs which provides great reduction in vehicle damage in the event a vehicle moving at high speed collides with the sign post. This potential is achieved by the controlling the mode and location of the structural failure of the post upon

A composite fiber and resin sign post for displaying highway signs which provides great reduction in vehicle damage in the event a vehicle moving at high speed collides with the sign post. This potential is achieved by the controlling the mode and location of the structural failure of the post upon impact. The failure mode of the post is controlled by varying the configuration of the post in cross-section, in combination with varying the specific fibers and resins, and in further combination with varying the location and placement of the fibers. The composite post may be constructed by pultrusion, filament winding, or related processes. A preferred embodiment uses a ground anchor socket constructed either by processes and components similar to those used in manufacturing the post, or by stamping sheet steel and spot welding to form a socket. The anchor socket provides additional control over the post failure and makes replacement of damaged posts quicker and easier.

대표청구항 ▼

A thin walled tubular highway sign support post comprising at least one segment, wherein each segment is of substantially even cross-section along its entire length constructed from glass fiber stands and resin composite providing impact load failure control means for controlling the mode and locati

A thin walled tubular highway sign support post comprising at least one segment, wherein each segment is of substantially even cross-section along its entire length constructed from glass fiber stands and resin composite providing impact load failure control means for controlling the mode and location of post failure, wherein said failure control means comprises orientation of glass fibers transverse to the longitudinal axis of said post and a glass percentage by weight within the range of 55% to 75%, further comprising ground anchor means wherein said ground anchor means comprises a socket fixed in the ground that slidingly receives said post and locking means for installing said post and to selectively prevent the removal of said post.