A post
a post and slot technology, applied in the field of posts, can solve the problems damage or breakage of one or more posts, and the length of the slot is relatively long compared to the length of the post,
Active Publication Date: 2015-10-22
VALMONT HIGHWAY TECH
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The present invention relates to a post with apertures for receiving and retaining cables. The post has either the same number of apertures on each side, or alternating sides with the same number of apertures. The apertures have an opening that assists in releasing the cable in case of an impact. The post also has a retaining portion to keep the cable in place. The post may have two, four, or six apertures on the side. The post is hollow and includes a cap with a top portion and a rim that seamlessly fits over the open-ended top of the post. The mouth of the aperture may be designed to reduce friction and contact with the cable during ejection. The technical effects of this invention are to provide a stable and reliable load-bearing post that can withstand impact or other forms of force, while also allowing for easy installation and maintenance.
Problems solved by technology
In short, one of the major drawbacks with this conventional single slot construction is that in order to accommodate multiple cables, the length of the slot is relatively long compared to the length of the post.
Thus, typically posts have to have a solid construction, or use stronger materials in their construction, to compensate for the reduction of strength and this understandingly adds to their cost.
Furthermore, the location of the slot within these barrier posts makes it difficult to replace, one or more posts, that may be damaged or broken, within an erected cable barrier system.
This ends up trapping at least one of the cables within the aperture and thus reduces the energy that can be absorbed if the cables were free to fully flex.
In addition, it also means the post cannot be re-used which is wasteful and expensive.
Method used
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Embodiment Construction
[0040]With respect to FIGS. 1 and 2 there is provided a post 1 which is hollow and has two apertures 2 and 3 on either side thereof. The apertures 2 and 3 each have an opening 4 and 5 on the side of the post which permits cables (not shown) in use to be inserted or ejected from the apertures 2 and 3. The apertures 2 and 3 also have a retaining portion in the form of a wall 6 and 7 which has a lip 8 and 9 at the top thereof which, in use, assists with retaining a tensioned cable within the apertures 2 and 3.
[0041]FIG. 2 differs from FIG. 1 in that it is has an additional aperture 500 which in use creates an asymmetrical loading on the post when tensioned cables are inserted into the apertures.
[0042]FIG. 1 shows a post 1 differs from the prior art post of FIG. 2 in that it has the same number of apertures on either side of the post to create a symmetrical loading on the post when tensioned cables are inserted into the apertures. The post 1 in FIG. 1 also has a short slot 10 in the top...
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A post is provided which includes apertures on alternate sides of the post which, in use, receive and retain at least one cable therein, the same number of apertures are on each side of the post wherein each aperture: has a side opening in the form of a mouth, wherein the mouth is at a distal region thereof configured to have a top surface with an angle greater than the angle at a proximate region of the mouth so as to reduce the travel path of, and / or; any frictional contact with; the cable, during ejection from aperture following a collision.
Description
TECHNICAL FIELD[0001]The present invention relates to a post. In particular, the present invention relates to a post and parts therefor that may be used for, but not limited to, cable barriers. For ease of reference, the present invention will now be described while in useBACKGROUND ART[0002]The present invention is designed to further improve upon the applicants earlier cable barrier post covered by NZ Patent No. 546969.[0003]The post in NZ 546969 was itself designed to overcome problems with conventional cable barrier posts for a roading network which have a single aperture (slot) extending downwards though the middle of the barrier post as shown in FIG. 7. This slot retaining one or more barrier cables within the cable barrier system.[0004]In short, one of the major drawbacks with this conventional single slot construction is that in order to accommodate multiple cables, the length of the slot is relatively long compared to the length of the post. As a consequence sides of the sl...
Claims
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IPC IPC(8): E01F15/06E04H17/24E04H17/20E04H17/08E04H17/12
CPCE01F15/06E04H17/08E04H17/24E04H17/20E04H17/12E04H17/006E04H17/21
Inventor JAMES, DALLAS REXROGERS, JASON PAUL
Owner VALMONT HIGHWAY TECH