CA1046227A - Support assemblies for posts - Google Patents
Support assemblies for postsInfo
- Publication number
- CA1046227A CA1046227A CA265,241A CA265241A CA1046227A CA 1046227 A CA1046227 A CA 1046227A CA 265241 A CA265241 A CA 265241A CA 1046227 A CA1046227 A CA 1046227A
- Authority
- CA
- Canada
- Prior art keywords
- assembly
- post
- open end
- bore
- ground
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
- E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
- E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
- E01F9/673—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for holding sign posts or the like
- E01F9/685—Subsoil means, e.g. foundations
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The invention relates to support structures for posts which enable damaged posts to be extracted with relative ease and a new post mounted in the support assembly with minor labor requirements. The inventive structure comprises a post supporting assembly adapted to be embedded in the ground such that the top of the assembly is co-planar with the sur-face of the ground. The assembly includes a first, hollow tubular member circular in transverse cross-section and open at both ends. A second member adapted to be inserted with-in one open end of the first member to form a base for the assembly, this second member having a centrally disposed post receiving and supporting aperture extending at least partially through that member on the longitudinal axis of the assembly, and, a third member, adapted to be inserted, at least in part, within the other open end of the first member to provide a top to the assembly. The third member is also provided with a centrally disposed post receiving and supporting aperture extending therethrough on the long-itudinal axis of the assembly, the latter mentioned aperture being aligned with the aperture in the second member.
The invention relates to support structures for posts which enable damaged posts to be extracted with relative ease and a new post mounted in the support assembly with minor labor requirements. The inventive structure comprises a post supporting assembly adapted to be embedded in the ground such that the top of the assembly is co-planar with the sur-face of the ground. The assembly includes a first, hollow tubular member circular in transverse cross-section and open at both ends. A second member adapted to be inserted with-in one open end of the first member to form a base for the assembly, this second member having a centrally disposed post receiving and supporting aperture extending at least partially through that member on the longitudinal axis of the assembly, and, a third member, adapted to be inserted, at least in part, within the other open end of the first member to provide a top to the assembly. The third member is also provided with a centrally disposed post receiving and supporting aperture extending therethrough on the long-itudinal axis of the assembly, the latter mentioned aperture being aligned with the aperture in the second member.
Description
, lO'~f~2Z~
The invention relates to improvements in the con-struction of post supports and is particularly directed to an assembly which facilitates the replacement of damaged posts.
For reasons of economy, particularly in rural dis-tricts, wooden posts are still being utilized extensively to support highway markers, signs, etc. Wooden posts are highly susceptible to environmental damage particularly in areas where severe weather conditions exist. In addi-tion, road maintenance equipment, ditch digging machines,farm implements and snow plows, take a heavy toll in posts throughout a year, and many thousands of dollars are spent in the replacement of highway signs alone.
As is well known, wooden posts are normally erected in post holes with no support, and tamped firmly into place.
In some instances, the posts are embedded in concrete to give additional support.
A common source of mechanical damage, is that of shearing at ground level by snowplows, and considerable time has to be spent by maintenance crews in thawing the frozen ground before they can extract the broken stump and install a new post. While winter is an exceptionally difficult season for outside work, post replacement at any time is a tedious, time consuming, and thus expensive pro-cess.
Numerous attempts have been made to provide post supporting assemblies of the break-away type, two examples of which can be seen in United States Patent 3,606,222 issued September 20, 1971 to E. S. Howard; and Canadian Patent 966,274 issued April 22, 1976 to A. Doran but both 104~i2Z7 of these prior art devices are relatively complex in con-struction and expensive to produce.
The present invention therefore seeks to provide a simple, inexpensive, below ground support assembly from which a broken post can be extracted quickly and a new post mounted with minimum labor requirements, thus removing the necessity of providing the complex "break-away" mechanism.
The invention therefore comprises a post supporting assembly adapted to be embedded in the ground such that the top of the assembly is co-planar with the surface of the ground. The assembly comprises a first, hollow tubular member circular in transverse cross-section and open at both ends; a second member adapted to be inserted within one open end of the first member to form a base for the assembly, this second member having a centrally disposed post receiving and supporting aperture extending at least partially through that member on the longitudinal axis of the assembly; and a third member,adapted to be inserted, at least in part, within the other open end of the first member to provide a top to the assembly, the third member having a centrally disposed post receiving and supporting aperture extending therethrough on the longitudinal axis of the assembly.
The invention will now be described, by way of example only, reference being had to the accompanying drawing which discloses the post support assembly of the invention in use, and adapted for the support of a wooden post of square cross-section.
As can be seen, the inventive assembly in its pre-ferred form comprises three basic components, the first of ' ' - '' 104~i2Z'7 which is a cylindrical metallic member or pipe 10, the length of which being pre-determined on the basis of the weight of structure the assembly has to support, but preferably if prac-tical, of a length to extend beyond the frost-line in the ground 11. The internal bore of pipe 10 is essentially lar-ger than the cross-sectional diameter of the post (shown in phantom as 12) not only to facilitate mounting of a new post or the extraction or a broken stump, but also to provide an air space around the buried end of post 12. This allows the wood to breath and effectively reduces damage from retained moisture.
The second of the three components is a bottom plate 13 which fits snugly with pipe 10 at the lower end thereof and forms the base of the assembly. Plate 13 is provided with a central aperture 14, the profile of which matches the cross-section of the post 11. The purpose of this aperture is to accept the lower end of the post 12 and to maintain the post centrally disposed within the support assembly in con-junction with a top plate 15 to be described hereafter.
Aperture 14 in the described embodiment, extends through plate 13, however, it may be preferable to increase the thickness of plate 13 and form the aperture as a blind hole thus preventing contact between the bottom of the post and the ground.
In certain circumstances, such as location of the support assembly, it may be necessary to either provide drainage holes in or adjacent the bottom plate to allow dissipation of water collected within pipe 10, to the sur-rounding earth, or, to apply a sealant, for example a rubber compound to plate 13 around the periphery and around the ~04~;ZZ7 aperture 14 to prevent ingress of water to the assembly.
Finally, the support assembly is completed by top plate 15, which is formed to include a downwardly extending portion 15(a) adapted to be inserted within the upper por-tion of pipe 10, and an integral upper flanged top 15(b) which in use abuts or caps the top of pipe 10. It must be appreciated that the "fit" of portion 15(a) within the bore of pipe 10 must be such as to allow for material ex-pansion or contraction during extreme changes of tempera-ture. Obviously, the components must not mate tightly to-gether, since it is essential, that under the most adverse conditions top plate 15 be readily removable. Like bottom plate 13, top plate 15 has a centrally disposed post accept-ing aperture 14 extending therethrough, both apertures 14 being in vertical alignment one with the other for the purpose of maintaining the post 10 in an upright condition.
Again, if necessary, or desirable, a sealing compound could be applied to the underside of flange 15(b) and to the peri-phery of aperture 14 in top plate 15 to prevent ingress of moisture to the assembly.
It is accepted that it may be necessary to provide means for preventing rotation of the post within the assembly to prevent unauthorized extraction of the post, by for exam-ple vandals.
This may be achieved in a number of ways, the simplest being as shown in the drawings, by utilizing a spike or pin 16 which is inserted through a hole in pipe 10 just below top plate 15, and driven into the post 10.
As will be readily appreciated the support assembly is positioned in the ground such that the top plate 15 is z~
flush with the surface, this being essential to avoid damage to the support assembly should the post be contacted and severed at ground level by for example a snowplow blade.
The post is subsequently inserted through apertures 14 and if required, pinned in place. When it is necessary to re-place a damaged post all that is required, is to lever off the top plate, which thus permits the simple extraction of the broken stump of the post. A new post can then be mounted within the assembly with relative ease and the top plate firmly mated with pipe 10.
Further modifications and alternative embodiments of the invention will be apparent to those skilled in the art in view of the description. Accordingly, the description is to be construed as illustrative only and is for the purpose of teaching those skilled in the art, the manner of carrying out the invention. It is understood that the form of the inven-tion herewith shown and described is to be taken as the pre-sently preferred embodiment. Various changes may be made in the shape, size and general arrangement of components. For example, equivalent elements or materials may be substituted for those illustrated and described herein, and certain fea-tures of the invention may be utilized independently of the use of other features, all as will be apparent to one skilled in the art after having the benefit of this description of the invention.
The invention relates to improvements in the con-struction of post supports and is particularly directed to an assembly which facilitates the replacement of damaged posts.
For reasons of economy, particularly in rural dis-tricts, wooden posts are still being utilized extensively to support highway markers, signs, etc. Wooden posts are highly susceptible to environmental damage particularly in areas where severe weather conditions exist. In addi-tion, road maintenance equipment, ditch digging machines,farm implements and snow plows, take a heavy toll in posts throughout a year, and many thousands of dollars are spent in the replacement of highway signs alone.
As is well known, wooden posts are normally erected in post holes with no support, and tamped firmly into place.
In some instances, the posts are embedded in concrete to give additional support.
A common source of mechanical damage, is that of shearing at ground level by snowplows, and considerable time has to be spent by maintenance crews in thawing the frozen ground before they can extract the broken stump and install a new post. While winter is an exceptionally difficult season for outside work, post replacement at any time is a tedious, time consuming, and thus expensive pro-cess.
Numerous attempts have been made to provide post supporting assemblies of the break-away type, two examples of which can be seen in United States Patent 3,606,222 issued September 20, 1971 to E. S. Howard; and Canadian Patent 966,274 issued April 22, 1976 to A. Doran but both 104~i2Z7 of these prior art devices are relatively complex in con-struction and expensive to produce.
The present invention therefore seeks to provide a simple, inexpensive, below ground support assembly from which a broken post can be extracted quickly and a new post mounted with minimum labor requirements, thus removing the necessity of providing the complex "break-away" mechanism.
The invention therefore comprises a post supporting assembly adapted to be embedded in the ground such that the top of the assembly is co-planar with the surface of the ground. The assembly comprises a first, hollow tubular member circular in transverse cross-section and open at both ends; a second member adapted to be inserted within one open end of the first member to form a base for the assembly, this second member having a centrally disposed post receiving and supporting aperture extending at least partially through that member on the longitudinal axis of the assembly; and a third member,adapted to be inserted, at least in part, within the other open end of the first member to provide a top to the assembly, the third member having a centrally disposed post receiving and supporting aperture extending therethrough on the longitudinal axis of the assembly.
The invention will now be described, by way of example only, reference being had to the accompanying drawing which discloses the post support assembly of the invention in use, and adapted for the support of a wooden post of square cross-section.
As can be seen, the inventive assembly in its pre-ferred form comprises three basic components, the first of ' ' - '' 104~i2Z'7 which is a cylindrical metallic member or pipe 10, the length of which being pre-determined on the basis of the weight of structure the assembly has to support, but preferably if prac-tical, of a length to extend beyond the frost-line in the ground 11. The internal bore of pipe 10 is essentially lar-ger than the cross-sectional diameter of the post (shown in phantom as 12) not only to facilitate mounting of a new post or the extraction or a broken stump, but also to provide an air space around the buried end of post 12. This allows the wood to breath and effectively reduces damage from retained moisture.
The second of the three components is a bottom plate 13 which fits snugly with pipe 10 at the lower end thereof and forms the base of the assembly. Plate 13 is provided with a central aperture 14, the profile of which matches the cross-section of the post 11. The purpose of this aperture is to accept the lower end of the post 12 and to maintain the post centrally disposed within the support assembly in con-junction with a top plate 15 to be described hereafter.
Aperture 14 in the described embodiment, extends through plate 13, however, it may be preferable to increase the thickness of plate 13 and form the aperture as a blind hole thus preventing contact between the bottom of the post and the ground.
In certain circumstances, such as location of the support assembly, it may be necessary to either provide drainage holes in or adjacent the bottom plate to allow dissipation of water collected within pipe 10, to the sur-rounding earth, or, to apply a sealant, for example a rubber compound to plate 13 around the periphery and around the ~04~;ZZ7 aperture 14 to prevent ingress of water to the assembly.
Finally, the support assembly is completed by top plate 15, which is formed to include a downwardly extending portion 15(a) adapted to be inserted within the upper por-tion of pipe 10, and an integral upper flanged top 15(b) which in use abuts or caps the top of pipe 10. It must be appreciated that the "fit" of portion 15(a) within the bore of pipe 10 must be such as to allow for material ex-pansion or contraction during extreme changes of tempera-ture. Obviously, the components must not mate tightly to-gether, since it is essential, that under the most adverse conditions top plate 15 be readily removable. Like bottom plate 13, top plate 15 has a centrally disposed post accept-ing aperture 14 extending therethrough, both apertures 14 being in vertical alignment one with the other for the purpose of maintaining the post 10 in an upright condition.
Again, if necessary, or desirable, a sealing compound could be applied to the underside of flange 15(b) and to the peri-phery of aperture 14 in top plate 15 to prevent ingress of moisture to the assembly.
It is accepted that it may be necessary to provide means for preventing rotation of the post within the assembly to prevent unauthorized extraction of the post, by for exam-ple vandals.
This may be achieved in a number of ways, the simplest being as shown in the drawings, by utilizing a spike or pin 16 which is inserted through a hole in pipe 10 just below top plate 15, and driven into the post 10.
As will be readily appreciated the support assembly is positioned in the ground such that the top plate 15 is z~
flush with the surface, this being essential to avoid damage to the support assembly should the post be contacted and severed at ground level by for example a snowplow blade.
The post is subsequently inserted through apertures 14 and if required, pinned in place. When it is necessary to re-place a damaged post all that is required, is to lever off the top plate, which thus permits the simple extraction of the broken stump of the post. A new post can then be mounted within the assembly with relative ease and the top plate firmly mated with pipe 10.
Further modifications and alternative embodiments of the invention will be apparent to those skilled in the art in view of the description. Accordingly, the description is to be construed as illustrative only and is for the purpose of teaching those skilled in the art, the manner of carrying out the invention. It is understood that the form of the inven-tion herewith shown and described is to be taken as the pre-sently preferred embodiment. Various changes may be made in the shape, size and general arrangement of components. For example, equivalent elements or materials may be substituted for those illustrated and described herein, and certain fea-tures of the invention may be utilized independently of the use of other features, all as will be apparent to one skilled in the art after having the benefit of this description of the invention.
Claims (4)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A post supporting assembly adapted to be embedded in the ground such that the top of said assembly is co-planar with the surface of the ground, said assembly comprising (a) a first elongate cylindrical member, provided with a central bore extending longitudinally therethrough, open at both ends, said bore being circular in transverse cross-section and having a cross-sectional area substan-tially greater than that of the post to be supported.
(b) a second member adapted to be inserted within one open end of said bore to form the base of said assembly; and (c) a third member, adapted to be inserted, at least in part within the other open end of said bore to provide a top for said assembly, each said second and third members having a centrally disposed post receiving and supporting apertures extending therethrough on the longitudinal axis of said assembly, said apertures co-operating to maintain a post vertically within said assembly and in spaced relation with respect to said bore.
(b) a second member adapted to be inserted within one open end of said bore to form the base of said assembly; and (c) a third member, adapted to be inserted, at least in part within the other open end of said bore to provide a top for said assembly, each said second and third members having a centrally disposed post receiving and supporting apertures extending therethrough on the longitudinal axis of said assembly, said apertures co-operating to maintain a post vertically within said assembly and in spaced relation with respect to said bore.
2. The assembly according to Claim 1 wherein said third member has at its upper end an annular flange portion covering the upper open end of said first member and comprises, below said flange portion, a cylindrical body portion, the external part of which is inserted within said upper open end.
3. The assembly according to Claim 2 including sealing means adjacent the underside of said flange portion to provide a seal between said flange and said first member.
4. The assembly according to Claim 1 wherein said assembly is provided with drainage means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA265,241A CA1046227A (en) | 1976-11-09 | 1976-11-09 | Support assemblies for posts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA265,241A CA1046227A (en) | 1976-11-09 | 1976-11-09 | Support assemblies for posts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1046227A true CA1046227A (en) | 1979-01-16 |
Family
ID=4107232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA265,241A Expired CA1046227A (en) | 1976-11-09 | 1976-11-09 | Support assemblies for posts |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1046227A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989002962A1 (en) * | 1987-09-23 | 1989-04-06 | Eltek Holdings Pty. Ltd. | Pole support device |
-
1976
- 1976-11-09 CA CA265,241A patent/CA1046227A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989002962A1 (en) * | 1987-09-23 | 1989-04-06 | Eltek Holdings Pty. Ltd. | Pole support device |
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