GB2218998A - Bollards - Google Patents

Bollards Download PDF

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Publication number
GB2218998A
GB2218998A GB8912243A GB8912243A GB2218998A GB 2218998 A GB2218998 A GB 2218998A GB 8912243 A GB8912243 A GB 8912243A GB 8912243 A GB8912243 A GB 8912243A GB 2218998 A GB2218998 A GB 2218998A
Authority
GB
United Kingdom
Prior art keywords
bollard
bollards
moulded
translucent
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.)
Granted
Application number
GB8912243A
Other versions
GB8912243D0 (en
GB2218998B (en
Inventor
Terry Peake
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.)
FLEXIBLE DIRECTIONAL INDICATOR
Original Assignee
FLEXIBLE DIRECTIONAL INDICATOR
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 FLEXIBLE DIRECTIONAL INDICATOR filed Critical FLEXIBLE DIRECTIONAL INDICATOR
Publication of GB8912243D0 publication Critical patent/GB8912243D0/en
Publication of GB2218998A publication Critical patent/GB2218998A/en
Application granted granted Critical
Publication of GB2218998B publication Critical patent/GB2218998B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • 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
    • E01F1/00—Construction of station or like platforms or refuge islands or like islands in traffic areas, e.g. intersection or filling-station islands; Kerbs specially adapted for islands in traffic areas
    • 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
    • E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
    • E01F9/608—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings for guiding, warning or controlling traffic, e.g. delineator posts or milestones
    • 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
    • E01F9/604—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings
    • E01F9/615—Upright bodies, e.g. marker posts or bollards; Supports for road signs specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings illuminated
    • E01F9/617—Illuminated or wired-up posts, bollards, pillars or like upstanding bodies or structures for traffic guidance, warning or control
    • 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
    • E01F9/623—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection
    • E01F9/627—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by form or by structural features, e.g. for enabling displacement or deflection self-righting after deflection or displacement
    • E01F9/629—Traffic guidance, warning or control posts, bollards, pillars or like upstanding bodies or structures
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

A bollard comprises a unitary injection moulded body formed from a compound comprising EVA co-polymer and one or more other polymers, and a base 5 e.g. of galvanized steel. The body is inherently translucent and is screen printed to produce desired indicia. The material from which the body is moulded is inherently flexible and resilient and accordingly the bollard can resist minor impact damage.

Description

IMPROVEMENTS IN AND RELATING TO BOLLARDS AND SIMILAR STRUCTURES This invention relates to improvements in bollards and similar structures, and in the preferred embodiment of the invention provides bollards which are resistant to impact damage and yet which offer various improved performance characteristics.
The term "bollards" as used herein covers not only conventional traffic island bollards, but also moveable bollards, and special purpose bollards, for example roundabout marking bollards, bollards carrying traffic direction signs, airfield bollards, etc., together with flexible direction indicators, and the like.
Bollards have traditionally had a poor impact resistance. In acknowledgement of the fact that bollards will be struck during road traffic accidents, bollards have been designed deliberately to collapse and deform under such conditions, thereby minimising the damage suffered by a vehicle striking the bollard. As a result of this, bollards are damaged beyond repair by relatively slight impacts, and bollards in particularly vulnerable positions require frequent replacement.
The object of the present invention is to provide a bollard which can withstand at least a minor impact from a vehicle without sustaining appreciable damage. In the preferred embodiment of the invention, the bollard will withstand substantial impact without sustaining permanent damage, and indeed can be run over by a vehicle without sustaining substantial damage. At the same time, the desirable characteristic that the vehicle will not be damaged by impact with the bollard is preserved or enhanced as compared with conventional bollard designs.
According to one aspect of the present invention a bollard comprises a hollow body moulded from a compound of ethylene vinyl acetate and at least one other polymer material.
By an appropriate choice of moulding materials it is possible to produce a bollard which is able to provide desirable visual characteristics for the body. The polymer may be self coloured to provide the overall body colour of the bollard, and is capable of accepting colours, e.g. by silk screen printing, whereby indicia or areas of contrasting colour may be provided on the surface of the body.
The bollard may optionally be provided with reflectors or with reflective surface portions.
Preferably, the body is translucent whereby a light source may be placed within the body to illuminate the bollard. In a particularly preferred embodiment of the invention the body is a unitary injection moulding, and is secured to a rigid base which is permanently secured at the bollard use site.
The invention will be better understood from the following description of a preferred embodiment thereof, given by way of example only, reference being had to the accompanying drawing wherein: Figures 1 and 2 illustrate respectively front and side views of a bollard, the side view of the bollard illustrating the bollard body positioned immediately above a rigid base prior to fixing of the body to the base.
Referring now to the drawings, the bollard 1 comprises an injection moulded body 2 formed from a compound comprising EVA co-polymer and one or more other polymers, together optionally with fillers, to produce the desired characteristics of the body. The desired characteristics provide a bollard which is rigid and hard to feel and will not be deflected in the course of normal use as a result of, for example, wind pressure or indeed some one sitting on the bollard. However, the presence of the EVA in the body moulding compound is such that the whole body is resiliently deformable when subject to minor impacts with the result that no permanent damage will be done to the bollard as a result of minor collisions.
Preferably, the material from which the body is made is such that the body is inherently translucent and, in the preferred embodiment, a light source is placed within the body in order to illuminate the bollard at night. It will be noted that the preferred body is a unitary injection moulding and accordingly it provides a water tight cover ideally suited to housing an electric light source. Because of the translucent nature of the body a photoelectric detector may be provided within the body in order to turn on the internal illumination at dusk and turn the illumination off at dawn.
Indicia, for example a direction arrow 3, together, if desired, with coloured panels 4 may be formed on the body by a printing process, for example silk screen printing. The entire surface of the body, or selected areas thereof, may be made reflective if so desired.
In addition to the body 2 the bollard comprises a base 5 formed of suitable material, for example galvanized steel. The base 5 is permanently secured in the use position of the bollard, e.g. by incorporating the base within a mass of concrete. The body 2 is then positioned over the base and secured to the base by suitable fixing means.

Claims (5)

1. A bollard comprising a hollow body moulded from a compound of ethylene vinyl acetate and at least one other polymer material, the bollard being flexible and resilient whereby it can withstand a minor impact from a vehicle without sustaining structural damage.
2. A bollard according to claim 1 wherein the hollow body is a unitary moulding.
3. A bollard according to claim 1 or claim 2 wherein the bollard is inherently translucent and a light source is located within the bollard.
4. A bollard according to claim 3 wherein portions of the bollard are printed to render them less translucent than unprinted regions of the bollard.
5. A bollard according to any preceding claim which comprises a unitary injection moulded body and a rigid base to which the body is secured in use.
GB8912243A 1988-05-27 1989-05-26 Bollard Expired - Fee Related GB2218998B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888812710A GB8812710D0 (en) 1988-05-27 1988-05-27 Bollard

Publications (3)

Publication Number Publication Date
GB8912243D0 GB8912243D0 (en) 1989-07-12
GB2218998A true GB2218998A (en) 1989-11-29
GB2218998B GB2218998B (en) 1993-09-08

Family

ID=10637728

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888812710A Pending GB8812710D0 (en) 1988-05-27 1988-05-27 Bollard
GB8912243A Expired - Fee Related GB2218998B (en) 1988-05-27 1989-05-26 Bollard

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888812710A Pending GB8812710D0 (en) 1988-05-27 1988-05-27 Bollard

Country Status (1)

Country Link
GB (2) GB8812710D0 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2669951A1 (en) * 1990-12-03 1992-06-05 Ollivier Jean Signalling marker
EP1201827A1 (en) * 2000-10-23 2002-05-02 Borealis Technology Oy Pole for a road safety barrier

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1526848A (en) * 1975-12-24 1978-10-04 Grandview Ind Ltd Traffic marker post
US4557466A (en) * 1984-02-27 1985-12-10 Energy Absorption Systems, Inc. Inertial barrier
EP0209294A2 (en) * 1985-07-15 1987-01-21 Du Pont Canada Inc. Polyethylene compositions of high impact strength
US4680343A (en) * 1986-03-27 1987-07-14 The B. F. Goodrich Company Chlorinated poly(vinyl chloride) thermoplastic alloys

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1526848A (en) * 1975-12-24 1978-10-04 Grandview Ind Ltd Traffic marker post
US4557466A (en) * 1984-02-27 1985-12-10 Energy Absorption Systems, Inc. Inertial barrier
EP0209294A2 (en) * 1985-07-15 1987-01-21 Du Pont Canada Inc. Polyethylene compositions of high impact strength
US4680343A (en) * 1986-03-27 1987-07-14 The B. F. Goodrich Company Chlorinated poly(vinyl chloride) thermoplastic alloys

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2669951A1 (en) * 1990-12-03 1992-06-05 Ollivier Jean Signalling marker
EP1201827A1 (en) * 2000-10-23 2002-05-02 Borealis Technology Oy Pole for a road safety barrier

Also Published As

Publication number Publication date
GB8912243D0 (en) 1989-07-12
GB8812710D0 (en) 1988-06-29
GB2218998B (en) 1993-09-08

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Legal Events

Date Code Title Description
708D Proceeding under section 8(1)(a) of the patents act 1977
713B Proceeding under section 13(1) patents act 1977
708B Proceeding under section 8(1) patents act 1977
713A Proceeding under section 13 patents act 1977
772 Application made for revocation (sect. 72/1977)
772 Application made for revocation (sect. 72/1977)
772B Case decided by the comptroller ** patent revoked (sect. 72/1977)
772S Application withdrawn ** no order for revocation made (sect. 72/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030526