CA2257766A1 - Traffic cone - Google Patents

Traffic cone Download PDF

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Publication number
CA2257766A1
CA2257766A1 CA002257766A CA2257766A CA2257766A1 CA 2257766 A1 CA2257766 A1 CA 2257766A1 CA 002257766 A CA002257766 A CA 002257766A CA 2257766 A CA2257766 A CA 2257766A CA 2257766 A1 CA2257766 A1 CA 2257766A1
Authority
CA
Canada
Prior art keywords
ballast
traffic cone
cone
annular channel
recited
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
Application number
CA002257766A
Other languages
French (fr)
Inventor
Josef J. Braverman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2257766A1 publication Critical patent/CA2257766A1/en
Abandoned legal-status Critical Current

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Abstract

A traffic cone to delineate areas under construction and to channelize traffic. The traffic cone comprises of two pieces. A first piece is an integral body and base portion. A second piece is a separable and re-usable ballast workpiece.
The ballast can be made from various industrial scrap components such as recycled tires.
from cars or trucks, conveyor belts, or industrial flexible profiles. The base portion is specifically configured to receive the ballast in a peripheral annular channel defined therein. The ballast weights the first piece and provides stability to it. A
central hole on the bottom of the base portion and an open portion of the annular channel provides access for the ballast to be inserted or removed when desired. An upwardly disposed lip prevents the ballast in the annular storage area from unintentionally being dislodged therefrom. The base portion is advantageously shaped to stop the roll of the cone when the cone is overturned on its side. The device has the advantages of having separable ballast being readily removable, and re-usable with less transportation costs than current existing devices.

Description

TRAFFIC CONE
BACKGROUND OF THE INVENTION
This invention relates to traffic cones, i.e. devices designed mainly to delineate areas under construction and to channelize traffic.
Due to the compact size) light weight and stackability of traffic cones, they are widely used at maintenance and repair sites.
There are many kinds of cone designs with an upward body being of 1 o conical or cylindrical shape, and an outward wide base that forms an integral part with the body. The differences in designs is directed in the various kinds of bases. Most commonly used cones have an integrally molded base made of rubber. The heavy rubber base acts as a ballast for increased stability of the cone. A problem that arises with this design is that when the cone is damaged it is difficult (if not impossible) to remove the ballast from the damaged cone and re-use the ballast. Because of the integral design, the ballast is not easily separable from the damaged cone.
The end result of a damaged cone of this type is that both the damaged cone and integral ballast are unnecessarily discarded together when only the cone is damaged beyond its functional use. Therefore, it is desired for the ballast to be reusable after the cone is
2 o damaged beyond functional use.
Another disadvantage with the integral cone plus ballast designs, as well as other designs with molded bases, is high shipping costs. These traditional cone designs call for shipment of the cones with heavy rubber ballast from the manufacturer to the distributor to the local dealer to the end user as taught in U.S.
Patent No.
2,719,505 to Blumenthal.
In other designs, as taught in U.S. Patent No. 4,925,334 to Beard the cone has two parts, the first being an upright cone body with a larger outwardly positioned base and the second being a heavy ballast ( molded rubber plates) put onto the cone and resting on the base as shown in Fig. 8. Other prior art designs are set out
3 o in Figs. 9-11. Other designs teach the ballast, often in the form of tubular sand bags, to be laid into an open channel along the lower peripheral edge of the cone (Fig. 9).
In addition, some prior art also teaches the ballast to be mechanically attached to the base portion with fasteners or special holders (Fig. 10), while other prior art teaches the ballast to be exposed and co-molded with the cone to form the base portion (Fig. 11 ).
The latter two known designs results in non-separable ballast, which is undesirable.
Those designs also require the ballast to be shaped and/or molded to cooperate with s the shape of the base, further requiring additional manufacturing costs.
Recent developments in such designs have included the use of the sidewall portion of used tires, positioned around the outer periphery of a body portion as disclosed in U.S. Patent No. 5,199,813 to Nagler. This design is a variation of the prior art illustrated in Fig. 8. This design perhaps solves the problem of separable 1 o recyclability of the cone and ballast, but it too has drawbacks. Further still, Nagler teaches that having the ballast made from tire sidewalls makes the entire device bulky and inconvenient for handling, and occupies too much valuable space on the road, therefore reducing room for traffic on the road.
It is desired to have a traffic cone having a secure means for retaining a 1 s separable ballast within the confines of the cone. It is also desired to have a design that allows for usage and re-usage of local recyclable materials as ballast for cones.
SUMMARY OF THE INVENTION
It is an object of the invention to provide an improved traffic cone which 2 o avoids some or all of the above problems.
In the invention, the traffic cone has an upwardly-extending body with an integral base portion made preferably of plastic, the base portion being specifically configured to receive ballast in a peripheral annular channel via a central opening through the bottom thereof. In the preferred embodiment, the ballast is recycled 2 s portions of any industrial rubber scrap components such as treads of car or truck tires.
The overall design allows for the ballast to be immediately removable from a damaged cone and re-used in a replacement cone. Further still, the overall design allows the end-user or local distributor of the cone to utilize local recycling resources for the ballast.
3 o In the preferred embodiment, the base portion has an irregular shape as viewed from above, so that if the traffic cone is knocked over, it will not roll.

The preferred embodiment has a body portion having a conical shape, but this body portion shape could be various other shapes) but still fall within the scope of the invention. Such other shapes for the body portion include pyramidal polygon-shapes, for example.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described with reference to preferred embodiments by way of example, as illustrated in the accompanying drawings, in which:
Fig. 1 is a perspective view of one embodiment of the invention;
1 o Fig. 2 is a perspective view of the embodiment shown in Fig. 1 in partial g host;
Fig. 3 is a perspective view of the embodiment shown in Fig. 1 in partial ghost without any ballast;
Fig. 4 is a perspective top cross-sectional view of the base portion of the embodiment shown in Fig.1;
Fig. 5 is a side view of the embodiment shown in Fig. 1;
Fig. 6 is a top view of the embodiment shown in Fig. 1;
Fig. 7 is the view of Fig. 4 with an alternative embodiment of the ballast comprising of a singular strip of tire sidewall;
2 o Fig. 8 is a sectional schematic of the prior art showing the separable ballast resting on the base;
Fig. 9 is a sectional schematic of the prior art showing the separable ballast positioned within an exposed peripheral open channel on the base;
Fig. 10 is a sectional schematic of the prior art showing the non-separable 2 5 ballast positioned generally below the base and mechanically attached to the base with fasteners; and, Fig. 11 is a sectional schematic of the prior art showing the non-separable ballast integrally co-molded on the lower portion of the cone.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment of the invention is shown in Figs. 1-6.
Referring to Fig. 1, a traffic cone 1 to delineate construction areas and to channelize traffic comprises a body portion 2, a base portion 3 and a separable ballast 6 (shown s in Fig. 2). In the preferred embodiment, the body and base are integrally molded.
Hence, in the preferred embodiment the traffic cone is a two piece construction. The body and base is formed from an integral one piece construction first piece, while the ballast is the second piece to the invention, namely a separable workpiece element.
The body portion, in the preferred embodiment, is a conical-shape. Other shapes for 1 o the body portion including a slightly vertically tapered body, or a stepped cylinder shape body, or a pyramidal polygon shape body would still fall within the scope the invention.
The lower extremity of the body ends with the base outwardly extending therefrom. The base rests on the ground. When the base is weighted with ballast it provides the required stability for the cone. At or near the upper extremity of the body portion 2, 1 s there is, in the preferred embodiment, an aperture 29 for gripping the traffic cone with a finger.
The body and base can be constructed of any suitable weather and impact resistance material, preferably a lightweight, flexible material such as polyethylene or EVA or PVC plastisol. The body and base portions may be formed by 2 o various known manufacturing methods, including rotormolding, injection molding, and blow molding.
Referring to Fig. 3, the base 3, is specifically configured to receive the ballast in a peripheral annular channel 17 defined therein. In the preferred embodiment, the base 3 comprises a sidewall 9, a upper planar portion 11 and a lower 2 s planar portion 12 to form this annular channel. The lower planar portion forms a central opening 13. The ballast is inserted through this opening into the annular channel.
Preferably, the opening is circular and the centre of the opening coincides with the axis of the body. The diameter of the opening A is selected to be greater than the diameter of the inner lower extremity of the cone A' so as not to interfere with stackability of the 3 o cones. The lower planar portion has a retaining means to keep the installed ballast from shifting out of the storage area unintentionally. In the preferred embodiment, the
-4-retaining means is an upwardly disposed lip 5 that extends from the edge of the central opening. The lip is of sufficient height so as to prevent the ballast from dislodging out of the annular channel accidentally (i.e. in the event of the traffic cone being hit by traffic). Therefore, the sidewall, the upper planar portion, the lower planar portion and s the lip form a peripheral annular channel 17 that acts as a storage area for the ballast.
In the preferred embodiment, the base, when viewed from above, forms a substantially rectangular shape having two diagonally opposite corners being shallow U-shaped (as best shown in Fig. 6). The base shape is, advantageously, an irregular shape that prevents rolling of the traffic cone if the cone is knocked over on its side. In 1 o the preferred embodiment, the irregular shape of the base, as viewed from above, substantially forms a rectangular shape. The rectangular shape has two diagonally opposite sharp corners 7 and two other substantially less sharp diagonally opposite corners. The shape forms two shallow curved portions extending between said sharp corners. The outer periphery of the annular channel has a substantially corresponding 1 s shape as said irregular shape. Other anti-roll base shapes would also fall into the scope of the invention such as a polygonal or D-shape. So long as there is at least one lateral protrusion 7 forming a corner on the base with which the traffic cone, if on its side, will need to overcome in order to roll, then the resulting shape will fall within the scope of the invention.
2 o The ballast is made from portions of scrapped industrial products including car and truck tires, conveyor belts, sealing profiles, etc. However, in the preferred embodiment, it has been found that strips of recycled tire treads 6 are suitable for such purposes because of its availability, flexibility, high density and good durability. To achieve maximum stability of the traffic cone) the desired fit for the ballast is a tight fit.
2 s However, the upper planar portion 11 should preferably have sufficient clearance with the top of the ballast 6 to allow the easy installation of the ballast into the annular channel 17 (as shown in Fig. 2). On the other hand, the clearance should not be too much so as to allow the ballast to easily dislodge from the storage means in the event of an impact.
3 o Referring to Fig. 4, a number of recycled tire tread strips 6 cut to a suitable width from at least one tire can be laid within the annular channel. The preferred
-5-embodiment illustrates four strips laid into the annular channel. The desired orientation of such strips should be such that the natural tendency of the strips is to push outwardly towards and against the sidewalls 9; therefore, naturally biassed to remain securely within the annular channel.
s In the preferred embodiment) four treads are utilized in the annular channel as ballast. Two of the treads abut along their outside lengths the side walls ("outer treads") of the annular channel, and the other two treads abut the inside lengths of the first two outer treads.
As shown in Fig. 7, an alternative layout for ballast may be made from a 1 o continuous strip cut from recycled tire sidewall. The strips in this case are spirally laid on top of one another in the annular channel so as to be naturally biassed to remain in the annular channel. In situations where additional weight is required and there is no more space in the annular channel to accommodate additional ballast, tire sidewall portions are particularly suitable to place over the cone to rest on top of the base (not 15 shown).
As a result of the present invention, a number of advantages are achieved. First, there is more economical replacement of a damaged traffic cone because of the two piece design of the invention. In the event the first piece, namely the body and base portion, is damaged, the ballast (the second piece) may be 2 o advantageously easily removed from the damaged first piece and re-used in a new replacement body and base portion. Another advantage is that there is more economical assembly of the traffic cone. Insertion of the separable ballast allows for final assembly of the traffic cone at any stage of distribution. For instance, if a local dealer used the local resources of used tire components then there would be no need 2 s to ship the ballast from the traffic cone manufacturer to the assembler.
As a result, the traffic cone is environmentally friendly and more economical to manufacture, distribute and maintain than conventional traffic cones.
It will be appreciated that the above description relates to the preferred embodiment by way of example only. Many variations on the invention will be obvious 3 o to those knowledgeable in the field, and such obvious variations are within the scope of the invention as described and claimed, whether or not expressly described.
-6-

Claims (14)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE PROPERTY
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A traffic cone, comprising an upwardly-extending body and an integral base portion, said base portion being specifically configured to receive separable ballast in a peripheral annular channel defined therein, via a bottom central opening in said base portion, at least a portion of said channel having an open inner portion exposed to said bottom central opening.
2. A traffic cone as recited in claim 1, wherein said base portion extends radially from a lower portion of said body portion and forms an irregular shape as viewed from above, so that if the traffic cone is knocked over, it will not roll.
3. A traffic cone as recited in claim 2, further comprising an upwardly disposed lip along an edge of said bottom central opening whereby preventing the ballast from unintentionally being dislodged from said annular channel.
4. A traffic cone as recited in claim 3, wherein said irregular shape comprises at least one lateral projection forming at least one corner.
5. A traffic cone as recited in claim 4, wherein said irregular shape as viewed from above substantially forms a generally rectangular shape, said rectangular shape having two diagonally opposite sharp corners and two substantially less sharp diagonally opposite corners so to form two shallow curved portions extending between said sharp corners, and said annular channel having a substantially corresponding shape as said irregular shape.
6. A traffic cone as recited in claim 5, wherein said body is a cone shape having a vertical axis.
7. A traffic cone as recited in claim 5, wherein said body is a pyramidal polygon shape having a vertical axis.
8. A traffic cone in combination with separable ballast therefor, said cone comprising an upwardly-extending body and an integral base portion, said base portion being specifically configured to receive the ballast in a peripheral annular channel defined therein, via a bottom central opening in said base portion, at least a portion of said channel having an open inner portion exposed to said bottom central opening.
9. A traffic cone as recited in claim 8, wherein said base portion extends radially from a lower portion of said body portion and forms an irregular shape as viewed from above, so that if the traffic cone is knocked over, it will not roll.
10. A traffic cone as recited in claim 9, further comprising an upwardly disposed lip along an edge of said bottom central opening whereby preventing the ballast from unintentionally being dislodged from said annular channel.
11. A traffic cone as recited in claim 10, characterized by the ballast being made from a plurality of recycled strips of tire treads, said treads positioned in said annular channel so as to be naturally biassed to remain in the annular channel.
12. A traffic cone as recited in claim 11, comprising of four treads, two of said treads abutting along their outside lengths the side walls of the annular channel, and the other two treads of said treads abutting the inside lengths of the first two said treads.
13. A traffic cone as recited in claim 10, further comprising ballast made from at least one continuous strip cut from recycled tire sidewall, said at least one strip spirally laid on top of one another in said annular channel so as to be naturally biassed to remain in the annular channel.
14. A traffic cone as recited in claim 10, further comprising ballast made from strips cut from recycled conveyor belts or recycled industrial rubbers profiles.
CA002257766A 1998-02-24 1999-01-06 Traffic cone Abandoned CA2257766A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2795298A 1998-02-24 1998-02-24
US09/027,952 1998-02-24

Publications (1)

Publication Number Publication Date
CA2257766A1 true CA2257766A1 (en) 1999-08-24

Family

ID=29581795

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002257766A Abandoned CA2257766A1 (en) 1998-02-24 1999-01-06 Traffic cone

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Country Link
CA (1) CA2257766A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7513212B2 (en) * 2006-07-12 2009-04-07 Joe Dvoracek Traffic cone apparatus and method of production
USD778194S1 (en) 2015-08-11 2017-02-07 Steven Rich Traffic cone
US10323370B2 (en) 2017-01-10 2019-06-18 Steven Rich Traffic cone
USD854957S1 (en) 2015-08-11 2019-07-30 Steven Rich Traffic cone
US10487464B2 (en) 2017-01-10 2019-11-26 Steven Rich Traffic cone

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7513212B2 (en) * 2006-07-12 2009-04-07 Joe Dvoracek Traffic cone apparatus and method of production
USD778194S1 (en) 2015-08-11 2017-02-07 Steven Rich Traffic cone
USD791001S1 (en) 2015-08-11 2017-07-04 Steven Rich Traffic cone
USD791002S1 (en) 2015-08-11 2017-07-04 Steven Rich Traffic cone
USD854957S1 (en) 2015-08-11 2019-07-30 Steven Rich Traffic cone
US10323370B2 (en) 2017-01-10 2019-06-18 Steven Rich Traffic cone
US10487464B2 (en) 2017-01-10 2019-11-26 Steven Rich Traffic cone

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