CA2039116A1 - Traffic signalling post - Google Patents
Traffic signalling postInfo
- Publication number
- CA2039116A1 CA2039116A1 CA 2039116 CA2039116A CA2039116A1 CA 2039116 A1 CA2039116 A1 CA 2039116A1 CA 2039116 CA2039116 CA 2039116 CA 2039116 A CA2039116 A CA 2039116A CA 2039116 A1 CA2039116 A1 CA 2039116A1
- Authority
- CA
- Canada
- Prior art keywords
- rod member
- coil spring
- spring
- post
- base
- 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.)
- Abandoned
Links
Landscapes
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE:
The invention is a traffic signalling post which comprises a flexible base member and a hollow rod member fixed to the base member. The base member comprises a tubular coil spring which has a bulging girth portion between both of its ends. A
tension means is internally mounted inside the spring and fixed at both of its ends. The internally mounted tension means keep traction between both ends of the coil spring and flexibly maintains the coil spring in the vertical position. The tension means is also adapted to return the coil spring to its original vertical position and dampen its recoil after deformation. Means are provided at one of the ends of the coil spring for releasably securing it to an anchor base. Means are provided at the other end of the coil spring for gripping the rod member so that the rod member extends upwardly and coaxially from the coil spring.
The rod member is adapted to flex the flexible base upon lateral traction on the rod member.
The invention is a traffic signalling post which comprises a flexible base member and a hollow rod member fixed to the base member. The base member comprises a tubular coil spring which has a bulging girth portion between both of its ends. A
tension means is internally mounted inside the spring and fixed at both of its ends. The internally mounted tension means keep traction between both ends of the coil spring and flexibly maintains the coil spring in the vertical position. The tension means is also adapted to return the coil spring to its original vertical position and dampen its recoil after deformation. Means are provided at one of the ends of the coil spring for releasably securing it to an anchor base. Means are provided at the other end of the coil spring for gripping the rod member so that the rod member extends upwardly and coaxially from the coil spring.
The rod member is adapted to flex the flexible base upon lateral traction on the rod member.
Description
2 ~
TITLE OF THE INVENTION:
_ _ _ _ _ _ _ TRAFFIC SIGNALI.ING POST
BACKGROUND_OF_THE_INVENTION.
Fie]d of the invention:
The present invention relates to signalling posts for signalling n pathway for cars, buses or bicycle~ and to such posts adapted to be unintentionally hit without causing substantial damage~ to the vehicles or bodily harm to the drivers, paqqengers or pRr~qonn ~round th~ posts or innide the vehiclen.
Prior art:
A search made by the inventor has failed to reveal pertinent refeeences.
Two types oE signalling posts are extensively used. The first consists of a solid heavy base such as concrete on which is secured a rigid tubular member. This concrete base is not anchored to the ground but can cause bodily and material damage when hit. The second type of post consists of light plastic or rubber cones removably disposed to delimit a temporary pathway. These cones are 90 light as to topple when slightly touched by passing vehicles. They are also disturbed by passers-by, are used as toys by children flnd are easily stolen.
SUMMARY OF THE INVENTION:
_________________________ .
Accordingly, the present invention relates to a signalling post which while being solidly anchored to the ground can resiliently deform upon impact in order to prevent damages 2~''Y '~i both to the post and to the structure which initiated the impact.
The present invention nl90 relates to fl structure which can be easily installed and retracted from the ground. The proposed structure once retracted from the ground can easily be manipulnted and stored For u]terior usage.
Furthermore, the proposed type of anchoring means does not protrude from the ground and thus will not cause obstruction when th~ p~st i~ t~mporarily removad from it.
The present invention thus relates to a traffic .signalling post which comprises a flexible bsse member and a hollow rod member Eixed to the base member. The base member comprises a tubular coil spring which has a bulging girth portion between both of its end.s. A tension means is internally mounted inside the spring and fixed at both of its ends. The internally mounted tension means keep trsction between both end~s of the coil spring and flexibly maintains the coil spring in the vertical position. The tension means is also adapted to return the coil spring in its original vertical position and dampen its recoil after deformfltion. Means are provided at one of the ends of the coil spring for releassbly securing it to an anchor base. Means are provided at the other end of the coil spring for gripping the rod member so that the rod member extends upwardly and coaxially from the coil spring. The rod member is adapted to flex the flexible base upon lateral traction on the rod member.
In a specific embodiment of the invention, the . ~ .
2 ~
securing means comprises a threaded stem and a peripherally fiitting surface adapted to abllt against the anchor base when the fitem is threadily engaged in the anchor base.
The rod member hafi an internal contour to fittingly grip a corresponding contour of the top end of the coil spring. The tenfiion means is ideally a cylindrical coil spring secured at botll ends to the refipecive ends of the tubular coil spring both of the springs being made of spring steel.
In another embodiment of the invention, the traffic signalling po~t comprises a flexible rod member and a rigid sllaft coaxially secured at one end of the rod member. An anchor bore member i8 adapted to house the rod member for maintaining the latter in a vertical position. The bore member has a perforated elastic diaghram for peripherally sealing the shaft at the location adjacent the rod member when the latter sits on the bore member. The rod member is characterized by a flexibility allowing it to bend upon a lateral blow on a portion intermediate to both of its ends.
DESCRIPTION OF THE DRAWINGS-_____________ _____ ________ Figure 1 is a perspective view of a row of traffic signalling posts embodying the invention, Figure 2 is an elevational view of the front end of a car hitting a signalling post, the signalling post being temporarily deformed upon impact, Figure 3 is an elevational view of the traffic %~ i3 signalling post, Figure 4 is a cross-sectional view oE a first embodiment oE the base member of the post taken along 4-4 of figure 3, Figure 4a is a cross-sectional view of the first embodiment of the base member illustrated in figure 4 being temporarly deformed upon impact on the hollow rod member above it, Figure 6 is a detailed cross-sectional view of the base portion of a second embodiment bein8 inserted in the anchoring means, Figure fia is a view of the base portion of the second embodiment once inserted in the anchoring means, Figure 6b is a detailed cross-sectional view of the base portion of the second embodiment being retracted Erom the anchoring means, Figure 7 is a top view of the anchoring means of the second embodiment, and Figure 8 is a cross-sectional view taken along line 8-8 of figure 7.
DETAILED DESCRIPTION OF THE PREFERRED ~M~ODIMENT:
_ _ ____ __________ _ _ __ __ __ _______ __ __ ____ ~ . ____ Figure 1 illustrates a row of signalling posts 10 embodying the invention. Each signalling post 10 has A base member 12 and a hollow rod member 14 fixed to the base member 12.
The base member 12 is releasably connected to an anchor base 13 which is anchored into the ground 16.
2~3~
The hollow rod member 14 i9 preferably made out of a cylindrical extrusion of polymeric materials such as polyethylene fldapted to res;liently deform upon impflct.
Figure 2 illustrates an example of a resilient deformation of the hollow rod member 14 resulting from the frontsl collision of a vehicle 15 on the signalling post 10.
Since the rod member 14 resiliently deforms upon impAct, dsmAges to both the signalling post and the body initiating the impact are kept to a minimum level.
ReFerring more specifically to figures 4 and 4a, there is sl)own a first embodiment of the invention specifically adapted to further enhance the property of the signalling post 10 to resiliently deform upon impact. In this first embodiment of the invention the base member 12 comprises an external tubular coil spring 18 having a top neck portion 20, a bottom neck portion 22 and a bulging girth portion 24 located between the neck portions 20 and 22.
An internal cylindrical coil spring 26 i~
internally mounted inside the external coil spring 18. The internal coil spring 26 i8 attached at its upper end portion 28 to a top retaining cap 30 and at its lower end portion 32 to a bottom retaining cap 34.
Since the top retaining cap 30 and the bottom retaining cap 34 abut respectively against the uppermost spire 36 flnd the lowermost spire 38 of the external coil spring 18, the 2~3~
internal coil spring 26 exerts a resilient traction adapted to keep the external coil spring 18 under a resilient long;tudinal compresslon .
As illustrated in figures 2 and 4a, the base member 12 will flex laterally from the vertical plane upon impact on the rod member 14 to which it is attached. This particular structure of the base member 12 will thus further enhances the ability oE the signalling post 10 to resiliently deform upon impact.
The internal coil spring 26 i9 adapted to return the external coil spring 18 to its vertical position and to dampen its recoil after the impact. The dampening effect of the internal coil spring 26 prevents the rod member 14 from oscilating in a vertical plane about its base thus further limiting possible damages a~ter impact to the body which created the impact.
The top retaining cap 30 has an upper flange 40 adapted to abut against the upper most spire 36 of the external coil spring 18 and a downwardly extending prong 42 provided with an aperture 44 into which the top hooking portion 46 of coil spring 26 is inserted. The bottom retaining cap 34 has a lower flange portion 48 adapted to abut against the lower most spire 38 of the external coil spring 18. The bottom retaining cap 34 also has an upwardly extending prong 50 provided with an aperture 52 adapted to receive a bottom hooking portion 54 of the internal r coil 26.
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The anchor base 13 is provided with a longitudinal internfllly threaded channel 58. A threaded stem 60 formed integral with the bottom retaining cap 34 is adapted to be threadedly engaged inside channel 58. A peripherally ~itting surface 62 also Eormed ;ntegral with the retaining cap 34 i9 ad&pted to abut evenly against the top surface 64 of the anchor base 13.
The signalling post 10 can thus be readily installed or removed from its anchor base 13 by a screwing action. A pair of diametrically opposed flats 65 adapted to facilitate the gripping of the cap during installation of the post 10 is provided on the outer periphery of the bottom retaining cap 34. Furthermore, since the anchor base 13 is positioned slightly below the top surface of the ground 16, once the post is removed from its anchor base 13 there are no protrubing structure above the ground 16 which would cause obstruction.
The hollow rod member 14 has an internal diameter referred to in figure 4 by arrows D, adapted to fittingly grip tlle upper neck portion 20 of the internal coil spring 18.
A flexible protective skirt 66 preferably made out of elastomeric material encloses the base member 12. The protective skirt 66 which is secured to the upper portion 20 of the external coil spring 18 by a retaining ring 68 is adapted to protect the base member 20 from environmental elements such as 3~L~A~
rain, mud, snow or the like. The ring 68 also serves the purpose of securing the rod member 14 to tlle coil spring 18.
A sealing cap 70 is fittingly positioned on top of the hollow rod member 14. Optionally, a signalling plate such as the one reFerred to by numeral 72 in figure 1 can be secured to the top portion of the hollow rod member 14 instead of the sealing cap 70.
In the preferred version of the first embodiment, the external coil spring 18 has spires 3/16 of an inch to 5/16 of an inch in diameter and a height of 7 to 12 inches. The diameter of both neck portions 20 and 22 varies from 1" to 2 I/2 inches and the diameter of the bulging girth portion 24 varies from 3 to 5 inches. The internal cylindrical coil spring 26 has a height oE about 3 to 4 inches and a diameter of about 1 to 1 1/2 inches.
The diameter oE each spire of the internal coil spring 26 being about l/8th of an inch to 3/16th of an inch.
The llollow rod member 14 is preferably made of a heavy plastic material such as polyethylene.
In a ~econd embodiment of the invention, the flexible base member 12 is replaced by a rigid base member 12' illustrated more specifically in figures 5 to 8. The base member 12' has 8 rigid shnft 74 fittingly linked to a cylindrical connecting element 76.
The cylindrical connecting element 76 is adapted to be fittingly inserted inside the hollow rod member 14. A
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t;ghtening ring 78 positioned around the outer periphery of the rod member 14 i9 adapted to squeeze the hollow rod member 14 in -order to releasably retain the connecting element 76 inside the hollow rod member 14.
A locking collar 80 is secured to the rigid sha~t 74 adjacent the cylindrical connecting element 76.
An anchor bore member 82 adapted to house and maintain in A vertical. po~ition the rod member 74 i~ anchored in the ground 16. The anchor bore membPr 82 comprises a tubular sleeve portion 84 surmounted by a connecting component 86. The connecting component 86 is attached to the sleeve portion 84 by welding ring 88. Tlle connecting components extend integrally at its upper portion into a flange 90. The flange 90 peripherally supports a perforated elastic diaghram 92. An annular rim 94 attached to the flange 90 by a set of screws 96 squeezes the outer periphery oF the diaghram 92 securing it to the connecting component 86.
The d;aghram 92 is preferably made of elastomeric material and has a rectilinear slot 98 surrounded by a pair of upwardly protrubing lips 100. The perforated diaghram 92 is adapted to seal off the anchor bore member 82 from water, rain, mud and the like when the rod member 74 is not inserted therein.
The lip 100 releasably grips the rod member 74 when the latter is inserted into the anchor bore member 82 as illustrated in F igure 6a.
2Q~9~
As illustrated in figure 6, during installation of the po~t 14 into ;ts anchor bore member 82, the rod member 74 i9 inserted in the slot 98 (~igure 7), pushing the edges of the lip~
100 downwardly. The rod member 74 is pushed down until the edges of the lips 100 come into contact with the upper portion of the locking collar 80 thus relea~ably and sealingly locking the rod members 74 inside the anchor bore member 82.
Since the diaghram 92 is made of an elastomeric material, the rod member 74 can be retracted from the anchor bore member 92 by a strong pulling action. Figure 6b illustrates the conEiguration of the lips 100 during the retraction of the rod member 74 from the anchor bore member 82.
Thi~ second embodiment of the invention thus also provides a signaLling post which is adapted resilient deformation UpOIl impact, while being firmly anchored to the ground. As was the case with the first embodiment, the structure also allows for easy installation and removal from the ground. Furthermore, the anchoring means do not represent an obstructing structure once the post is retrflcted from it.
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'
TITLE OF THE INVENTION:
_ _ _ _ _ _ _ TRAFFIC SIGNALI.ING POST
BACKGROUND_OF_THE_INVENTION.
Fie]d of the invention:
The present invention relates to signalling posts for signalling n pathway for cars, buses or bicycle~ and to such posts adapted to be unintentionally hit without causing substantial damage~ to the vehicles or bodily harm to the drivers, paqqengers or pRr~qonn ~round th~ posts or innide the vehiclen.
Prior art:
A search made by the inventor has failed to reveal pertinent refeeences.
Two types oE signalling posts are extensively used. The first consists of a solid heavy base such as concrete on which is secured a rigid tubular member. This concrete base is not anchored to the ground but can cause bodily and material damage when hit. The second type of post consists of light plastic or rubber cones removably disposed to delimit a temporary pathway. These cones are 90 light as to topple when slightly touched by passing vehicles. They are also disturbed by passers-by, are used as toys by children flnd are easily stolen.
SUMMARY OF THE INVENTION:
_________________________ .
Accordingly, the present invention relates to a signalling post which while being solidly anchored to the ground can resiliently deform upon impact in order to prevent damages 2~''Y '~i both to the post and to the structure which initiated the impact.
The present invention nl90 relates to fl structure which can be easily installed and retracted from the ground. The proposed structure once retracted from the ground can easily be manipulnted and stored For u]terior usage.
Furthermore, the proposed type of anchoring means does not protrude from the ground and thus will not cause obstruction when th~ p~st i~ t~mporarily removad from it.
The present invention thus relates to a traffic .signalling post which comprises a flexible bsse member and a hollow rod member Eixed to the base member. The base member comprises a tubular coil spring which has a bulging girth portion between both of its end.s. A tension means is internally mounted inside the spring and fixed at both of its ends. The internally mounted tension means keep trsction between both end~s of the coil spring and flexibly maintains the coil spring in the vertical position. The tension means is also adapted to return the coil spring in its original vertical position and dampen its recoil after deformfltion. Means are provided at one of the ends of the coil spring for releassbly securing it to an anchor base. Means are provided at the other end of the coil spring for gripping the rod member so that the rod member extends upwardly and coaxially from the coil spring. The rod member is adapted to flex the flexible base upon lateral traction on the rod member.
In a specific embodiment of the invention, the . ~ .
2 ~
securing means comprises a threaded stem and a peripherally fiitting surface adapted to abllt against the anchor base when the fitem is threadily engaged in the anchor base.
The rod member hafi an internal contour to fittingly grip a corresponding contour of the top end of the coil spring. The tenfiion means is ideally a cylindrical coil spring secured at botll ends to the refipecive ends of the tubular coil spring both of the springs being made of spring steel.
In another embodiment of the invention, the traffic signalling po~t comprises a flexible rod member and a rigid sllaft coaxially secured at one end of the rod member. An anchor bore member i8 adapted to house the rod member for maintaining the latter in a vertical position. The bore member has a perforated elastic diaghram for peripherally sealing the shaft at the location adjacent the rod member when the latter sits on the bore member. The rod member is characterized by a flexibility allowing it to bend upon a lateral blow on a portion intermediate to both of its ends.
DESCRIPTION OF THE DRAWINGS-_____________ _____ ________ Figure 1 is a perspective view of a row of traffic signalling posts embodying the invention, Figure 2 is an elevational view of the front end of a car hitting a signalling post, the signalling post being temporarily deformed upon impact, Figure 3 is an elevational view of the traffic %~ i3 signalling post, Figure 4 is a cross-sectional view oE a first embodiment oE the base member of the post taken along 4-4 of figure 3, Figure 4a is a cross-sectional view of the first embodiment of the base member illustrated in figure 4 being temporarly deformed upon impact on the hollow rod member above it, Figure 6 is a detailed cross-sectional view of the base portion of a second embodiment bein8 inserted in the anchoring means, Figure fia is a view of the base portion of the second embodiment once inserted in the anchoring means, Figure 6b is a detailed cross-sectional view of the base portion of the second embodiment being retracted Erom the anchoring means, Figure 7 is a top view of the anchoring means of the second embodiment, and Figure 8 is a cross-sectional view taken along line 8-8 of figure 7.
DETAILED DESCRIPTION OF THE PREFERRED ~M~ODIMENT:
_ _ ____ __________ _ _ __ __ __ _______ __ __ ____ ~ . ____ Figure 1 illustrates a row of signalling posts 10 embodying the invention. Each signalling post 10 has A base member 12 and a hollow rod member 14 fixed to the base member 12.
The base member 12 is releasably connected to an anchor base 13 which is anchored into the ground 16.
2~3~
The hollow rod member 14 i9 preferably made out of a cylindrical extrusion of polymeric materials such as polyethylene fldapted to res;liently deform upon impflct.
Figure 2 illustrates an example of a resilient deformation of the hollow rod member 14 resulting from the frontsl collision of a vehicle 15 on the signalling post 10.
Since the rod member 14 resiliently deforms upon impAct, dsmAges to both the signalling post and the body initiating the impact are kept to a minimum level.
ReFerring more specifically to figures 4 and 4a, there is sl)own a first embodiment of the invention specifically adapted to further enhance the property of the signalling post 10 to resiliently deform upon impact. In this first embodiment of the invention the base member 12 comprises an external tubular coil spring 18 having a top neck portion 20, a bottom neck portion 22 and a bulging girth portion 24 located between the neck portions 20 and 22.
An internal cylindrical coil spring 26 i~
internally mounted inside the external coil spring 18. The internal coil spring 26 i8 attached at its upper end portion 28 to a top retaining cap 30 and at its lower end portion 32 to a bottom retaining cap 34.
Since the top retaining cap 30 and the bottom retaining cap 34 abut respectively against the uppermost spire 36 flnd the lowermost spire 38 of the external coil spring 18, the 2~3~
internal coil spring 26 exerts a resilient traction adapted to keep the external coil spring 18 under a resilient long;tudinal compresslon .
As illustrated in figures 2 and 4a, the base member 12 will flex laterally from the vertical plane upon impact on the rod member 14 to which it is attached. This particular structure of the base member 12 will thus further enhances the ability oE the signalling post 10 to resiliently deform upon impact.
The internal coil spring 26 i9 adapted to return the external coil spring 18 to its vertical position and to dampen its recoil after the impact. The dampening effect of the internal coil spring 26 prevents the rod member 14 from oscilating in a vertical plane about its base thus further limiting possible damages a~ter impact to the body which created the impact.
The top retaining cap 30 has an upper flange 40 adapted to abut against the upper most spire 36 of the external coil spring 18 and a downwardly extending prong 42 provided with an aperture 44 into which the top hooking portion 46 of coil spring 26 is inserted. The bottom retaining cap 34 has a lower flange portion 48 adapted to abut against the lower most spire 38 of the external coil spring 18. The bottom retaining cap 34 also has an upwardly extending prong 50 provided with an aperture 52 adapted to receive a bottom hooking portion 54 of the internal r coil 26.
- .' . , ~ .
: .
2~3~
The anchor base 13 is provided with a longitudinal internfllly threaded channel 58. A threaded stem 60 formed integral with the bottom retaining cap 34 is adapted to be threadedly engaged inside channel 58. A peripherally ~itting surface 62 also Eormed ;ntegral with the retaining cap 34 i9 ad&pted to abut evenly against the top surface 64 of the anchor base 13.
The signalling post 10 can thus be readily installed or removed from its anchor base 13 by a screwing action. A pair of diametrically opposed flats 65 adapted to facilitate the gripping of the cap during installation of the post 10 is provided on the outer periphery of the bottom retaining cap 34. Furthermore, since the anchor base 13 is positioned slightly below the top surface of the ground 16, once the post is removed from its anchor base 13 there are no protrubing structure above the ground 16 which would cause obstruction.
The hollow rod member 14 has an internal diameter referred to in figure 4 by arrows D, adapted to fittingly grip tlle upper neck portion 20 of the internal coil spring 18.
A flexible protective skirt 66 preferably made out of elastomeric material encloses the base member 12. The protective skirt 66 which is secured to the upper portion 20 of the external coil spring 18 by a retaining ring 68 is adapted to protect the base member 20 from environmental elements such as 3~L~A~
rain, mud, snow or the like. The ring 68 also serves the purpose of securing the rod member 14 to tlle coil spring 18.
A sealing cap 70 is fittingly positioned on top of the hollow rod member 14. Optionally, a signalling plate such as the one reFerred to by numeral 72 in figure 1 can be secured to the top portion of the hollow rod member 14 instead of the sealing cap 70.
In the preferred version of the first embodiment, the external coil spring 18 has spires 3/16 of an inch to 5/16 of an inch in diameter and a height of 7 to 12 inches. The diameter of both neck portions 20 and 22 varies from 1" to 2 I/2 inches and the diameter of the bulging girth portion 24 varies from 3 to 5 inches. The internal cylindrical coil spring 26 has a height oE about 3 to 4 inches and a diameter of about 1 to 1 1/2 inches.
The diameter oE each spire of the internal coil spring 26 being about l/8th of an inch to 3/16th of an inch.
The llollow rod member 14 is preferably made of a heavy plastic material such as polyethylene.
In a ~econd embodiment of the invention, the flexible base member 12 is replaced by a rigid base member 12' illustrated more specifically in figures 5 to 8. The base member 12' has 8 rigid shnft 74 fittingly linked to a cylindrical connecting element 76.
The cylindrical connecting element 76 is adapted to be fittingly inserted inside the hollow rod member 14. A
.
.
' 2 ~
t;ghtening ring 78 positioned around the outer periphery of the rod member 14 i9 adapted to squeeze the hollow rod member 14 in -order to releasably retain the connecting element 76 inside the hollow rod member 14.
A locking collar 80 is secured to the rigid sha~t 74 adjacent the cylindrical connecting element 76.
An anchor bore member 82 adapted to house and maintain in A vertical. po~ition the rod member 74 i~ anchored in the ground 16. The anchor bore membPr 82 comprises a tubular sleeve portion 84 surmounted by a connecting component 86. The connecting component 86 is attached to the sleeve portion 84 by welding ring 88. Tlle connecting components extend integrally at its upper portion into a flange 90. The flange 90 peripherally supports a perforated elastic diaghram 92. An annular rim 94 attached to the flange 90 by a set of screws 96 squeezes the outer periphery oF the diaghram 92 securing it to the connecting component 86.
The d;aghram 92 is preferably made of elastomeric material and has a rectilinear slot 98 surrounded by a pair of upwardly protrubing lips 100. The perforated diaghram 92 is adapted to seal off the anchor bore member 82 from water, rain, mud and the like when the rod member 74 is not inserted therein.
The lip 100 releasably grips the rod member 74 when the latter is inserted into the anchor bore member 82 as illustrated in F igure 6a.
2Q~9~
As illustrated in figure 6, during installation of the po~t 14 into ;ts anchor bore member 82, the rod member 74 i9 inserted in the slot 98 (~igure 7), pushing the edges of the lip~
100 downwardly. The rod member 74 is pushed down until the edges of the lips 100 come into contact with the upper portion of the locking collar 80 thus relea~ably and sealingly locking the rod members 74 inside the anchor bore member 82.
Since the diaghram 92 is made of an elastomeric material, the rod member 74 can be retracted from the anchor bore member 92 by a strong pulling action. Figure 6b illustrates the conEiguration of the lips 100 during the retraction of the rod member 74 from the anchor bore member 82.
Thi~ second embodiment of the invention thus also provides a signaLling post which is adapted resilient deformation UpOIl impact, while being firmly anchored to the ground. As was the case with the first embodiment, the structure also allows for easy installation and removal from the ground. Furthermore, the anchoring means do not represent an obstructing structure once the post is retrflcted from it.
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Claims (8)
1-. A traffic signalling post comprising a flexible base member and a hollow rod member fixed to said base member, said base member comprising n tubular spring, said spring having a bulging girth portion between both ends, tension means internally mounted in said coil spring and fixed at both ends thereof for keeping a traction between the latter and flexibly maintaining said coil spring in a vertical position, said tension means adapted to return said coil spring in its vertical position and dampen its recoil means at one of said ends for releasably securing said coil spring to an anchor base, and means at the other of said end for gripping said rod member to said coil spring, said rod member coaxially extending upwardly from said coil spring, said rod member adapted to flex said flexible base upon lateral traction on said rod member.
2-. A traffic signalling post as recited in claim 1, wherein said securing means comprises a threaded stem and a peripherally sitting surface, adapted to abut against said anchor base when said stem is threadedly engaged in said anchor base.
3-. A traffic signalling post as recited in claim 1, wherein said means for releasably securing said post comprises an elongated shaft coaxial with said rod member and adapted to be mounted in a correspondingly hollow anchor base.
4-. A traffic signalling post as recited in claim 1, wherein said rod member has an internal contour to fittingly grip a corresponding contour of said other end of said coil spring.
5-. A traffic signalling post as recited in claim 4, wherein said tension means is a cylindrical coil spring secured at both ends to said respective ends of said tubular coil springs, both of said springs being made of spring steel.
6-. A traffic signalling post as recited in claim 5, wherein said tubular coil spring has a height of about 7 to 10 inches and a diameter of both ends of about 1 1/2 to 2 1/2 inches, said bulging girth having a diameter of about 3 to 5 inches the diameter of each spire of the tubular spring being about 3/16 and 5/16 inches and wherein said cylindrical spring has a height of about 3 to 4 inches, a diameter of about 1 to 1 1/2 inches the diameter of each spire of the cylindrical spring being about 1/8 to 3/16 inches.
7-. A traffic signalling post comprising a flexible rod member, a rigid shaft coaxially secured at one end of said rod member, an anchor bore member adapted to house said rod member for maintaining the latter in a vertical position, said bore member having a perforated elastic diaphragm for peripherally sealing said shaft at a location adjacent said rod member, when the latter sits on the bore member, said rod member being characterized by a flexibility allowing it to bend upon a lateral blow on a position intermediate both ends thereof.
8-. A traffic signalling post as recited in claim 7, wherein the rod member is a hollow tube made of polyethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2039116 CA2039116A1 (en) | 1991-03-26 | 1991-03-26 | Traffic signalling post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2039116 CA2039116A1 (en) | 1991-03-26 | 1991-03-26 | Traffic signalling post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2039116A1 true CA2039116A1 (en) | 1992-09-27 |
Family
ID=4147268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2039116 Abandoned CA2039116A1 (en) | 1991-03-26 | 1991-03-26 | Traffic signalling post |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2039116A1 (en) |
-
1991
- 1991-03-26 CA CA 2039116 patent/CA2039116A1/en not_active Abandoned
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| FZDE | Dead |