The present invention relates in general to sign post mounts. More specifically, but without restriction to the particular use which is shown and described, this invention relates to sign post support mounts that incorporate tubular sockets and driven-in fasteners.
Sign post mounts are known in the art. Conventional sign post mounts are a tubular device that is fixed in concrete or driven into the ground to receive the sign post and mount the sign post in an upright position. A driven-in fastener is often used to attach the sign post to the in-ground post mount to secure the sign post in the upright position. Many known post mount systems, however, are prone to loosening, tilting and/or rotation due to wind loading, temperature changes or impact on the sign post. Another known problem with existing post mounts is the hazard that arises from use of sharp and abruptly-edged metal components. Accordingly, there is a need for an improved post mount for mounting sign posts in the ground that provides better stabilization of the sign post and reduced hazard. The present invention provides a solution to these and other known problems common to conventional post mounts.
A post and post mount assembly in a hole in the ground has a socket in the hole, concrete in the annular space between the interior walls of the hole and the exterior of the socket, a post in the socket, a wedge member having a tapered portion filling a gap between the socket and the post.
A more complete understanding of the invention and its advantages will be apparent from the Detailed Description taken in conjunction with the accompanying Drawings, in which:
In its simplest aspect, the post mount assembly of the present invention includes a socket 20 in the hole 14, concrete 16 in the annular space between the interior walls of the hole 14 and the exterior of the socket 20, a post 12 in the socket 20, and a wedge member 22 having a tapered portion 24 filling a gap between the socket 20 and the post 12.
Socket 20 is a cylindrical tube with coaxial, parallel inner and outer walls 30, 32 respectively. Socket 20 has a lower end 34 at an oblique angle “A” to the inner and outer walls 30, 32. Lower end 34 of the socket 20 has inner and outer elliptical edges, 36, 38 respectively. Preferably, the oblique angle “A” of the socket lower end 34 is about thirty degrees from perpendicular to the inner and outer walls 30, 32.
Socket 20 has walls 40 defining a locking port 42. Preferably, locking port 42 is defined in the lower end 34 of the socket 20 with cylindrical, horizontal walls 40. As best shown in
Concrete 16 in the annular space between the interior walls 14 of the hole and the exterior of the socket 20 forms a contiguous mass with the concrete in the locking port 42, thereby locking the socket from removal and rotation. Locking port 42 adds additional, optional rigidity to the assembly that may be preferred, although it will be appreciated that the oblique angle “A” of lower end 34 alone will provide enhanced rigidity even in the absence of a locking port.
The post 12 is cylindrical, having an exterior wall 50 sized with a diameter smaller than the inner wall 34 of the socket 20. Wedge member 52 has a bottom with a half frustro-conical outer wall 54 and a half-cylindrical inner wall 56. The upper end 58 of the socket 20 has inner and outer circular edges 60, 62 respectively. The half frustro-conical outer wall 54 is tightly engaged with socket upper end inner circular edge 60 and the post exterior wall 50, as best shown in FIG. 13. Note: the taper of frustro-conical outer wall 54 is exaggerated in the figures for better understanding of the principle of operation. It is contemplated that the taper will be relatively slight, much less than what is shown.
Wedge member 52 has a half-cylindrical tubular top 64 with coaxial, parallel inner and outer walls 66, 68 respectively. Top 64 is sized to enable installation by relatively gentle hammering. Hole 70 is provided for removal of wedge member 52. Wedge member top inner wall 66 is contiguous with the bottom inner wall 56. Wedge member bottom half frustro-conical outer wall 54 is tapered inwardly from the wedge member top 64 to a bottom end 72 of the wedge member 52.
The socket 20 and wedge member 22 are preferably formed of a thermoplastic material selected from the group consisting of polyethylene and polypropylene.
Examples of the socket and wedge member have been formed from DRISCOPLEX (TM) PE 3408 HDPE. It is anticipated that a portion of the material may include recycled rubber, such as ground vehicle tires.
The wedge member 22 may be used in conventional metal sockets as well as the socket shown herein, providing a reduction of hazard over the conventional metal driven-in fastener.
It will be understood that each of the elements described above, or two or more together, may also find a useful application in other types of constructions differing from the type described above.
While the invention has been illustrated and described as embodied in a braking systems, it is not intended to be limited to the details shown, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.
Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention.
What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims.
Whereas, the present invention has been described with respect to a specific embodiment thereof, it will be understood that various changes and modifications will be suggested to one skilled in the art and it is intended to encompass such changes and modifications as fall within the scope of the appended claims.
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| Number | Date | Country | |
|---|---|---|---|
| 20030121223 A1 | Jul 2003 | US |