GB2150036A - Marking artificial turf - Google Patents

Marking artificial turf Download PDF

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Publication number
GB2150036A
GB2150036A GB08429449A GB8429449A GB2150036A GB 2150036 A GB2150036 A GB 2150036A GB 08429449 A GB08429449 A GB 08429449A GB 8429449 A GB8429449 A GB 8429449A GB 2150036 A GB2150036 A GB 2150036A
Authority
GB
United Kingdom
Prior art keywords
tape
marking
artificial turf
strip
line
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
GB08429449A
Other versions
GB8429449D0 (en
GB2150036B (en
Inventor
Max Rudolph Scholton
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.)
Nottingham County Council
Original Assignee
Nottingham County Council
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 Nottingham County Council filed Critical Nottingham County Council
Publication of GB8429449D0 publication Critical patent/GB8429449D0/en
Publication of GB2150036A publication Critical patent/GB2150036A/en
Application granted granted Critical
Publication of GB2150036B publication Critical patent/GB2150036B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/472—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat
    • B29C66/4722—Fixing strips to surfaces other than edge faces
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
    • A63C19/06—Apparatus for setting-out or dividing courts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
    • A63C19/06—Apparatus for setting-out or dividing courts
    • A63C19/065—Line markings, e.g. tapes; Methods therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/3444—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint being a ribbon, band or strip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/732—Floor coverings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)

Abstract

Line and other markings are provided in a carpet or artificial turf surface, for example a sports playing surface, by securing along the desired position of the marking a tape (5) having an electrical heating element coated on each face with a layer of a hot-melt adhesive, laying marking material (7) on the tape, passing an electric current through the tape to melt the adhesive, and pressing or rolling the marking on to the tape, which is then allowed to cool. Preferably the hot-melt adhesive is selected to melt at the same or a higher temperature than the pile (2) of the turf (1) or carpet, so that the pile in contact therewith melts into the adhesive for greater bonding strength. <IMAGE>

Description

SPECIFICATION Marking artificial turf This invention relates to a method of providing a line marking in an artificial turf surface or the like.
The use of artificial turf surfaces is becoming increasingly common, especially for sports areas, in view of their ease of maintenance.
Typically, such surfaces consist of a carpet formed of tufts of flat plastics filaments bonded to a backing material. An especially useful plastics material has been found to be polypropylene.
Line markings for defining areas on the playing surface for use in games such as tennis and soccer cannot readily be provided by the conventional techniques of applying a line marking paint, because polypropylene and other polyolefin materials, by virtue of their essentially oily nature, do not readily receive paints thereon. In practice, where paints are used, the lines have to be renewed regularly, with consequent maintenance costs arising. Line markings are therefore typically provided by cutting the artificial turf playing surface material and inserting a narrow strip of a different coloured artificial turf material.
This may be done in the conventional manner for joining carpets using tapes.
Because of the nature of the wear upon the carpet, these taped joins provide points of weakness where separation can occur. A further difficulty arises in cutting and joining long strips of the playing surface accurately.
According to the present invention, a method of providing a line or other marking in an artificial turf surface or the like comprises: a. securing along the desired position of the marking a tape comprising an electrical heating element and having on opposed faces thereof a layer of a hot-melt adhesive; b. laying a marking material on the tape; c. passing an electric current through the heating element to melt the adhesive; d. pressing or rolling the strip on to the tape; and; e. allowing the tape to cool.
Preferably the tape is initially secured on the desired position of the marking by nails, which pass through the tape and through the playing surface into the base upon which the artificial turf is laid, for example soil or a prepared sand and aggregate base.
The hot-melt adhesive is preferably chosen so as to melt at the same or a higher temperature than the material forming the pile of the artificial turf, which is preferably polypropylene. Thus, the polypropylene pile melts with the hot-melt adhesive, enabling very close compaction to take place during rolling. This gives a very low profile to the strip so that the line marking does not affect the passage of, say, a ball rolling across it.
Although the invention is described herein with particular reference to the formation of lines, it will be appreciated that other markings, for example letters or numerals, may be applied in accordance with the invention.
Equally, surfaces other than sports surfaces may be marked by the method, such as general pedestrian surfaces, and even carpets.
The method of the invention permits line and other markings to be provided quickly and accurately without reducing the strength of the turf surface.
Reference is made to the drawings, in which: Figure 1 is a section through a portion of the playing surface and through the tape and strip before they are secured; and Figure 2 is a corresponding view after the strip has been secured.
The playing surface 1 comprises a tufted polypropylene pile 2 bonded to a backing material 3, laid upon a base 4, which is typically sand or sand mixed with aggregate material, and possibly including stabilising and bounce altering layers between the sand and the playing surface.
To mark a line in the playing surface, a double-sided tape 5 comprising an aluminium heating element sandwiched between two reinforced layers of hot-melt adhesive, is positioned along the desired line and secured using nails 6. A suitable tape is that sold by Silvaseam Limited under the name "TA K- TAPE". A strip of different coloured artificial turf material 7 is laid over the tape 5, and the aluminium heating element in the tape is then connected to an electrical supply, normally a transformer providing a relatively high current at low voltage.
When the electrical current has heated the tape sufficiently to melt the adhesive, the strip 7 is then rolled firmly onto the tape, and the electrical supply is disconnected to allow the tape to cool. After cooling, the strip will be firmly bonded to the playing surface 1, as shown in Fig. 2. The polypropylene pile on the strip 7 and the surface 1 is of a sufficient length to permit, with some flattening of that on the strip, a uniform height to be assumed by the pile in use. The strip is therefore not prominent above the remainder of the surface in use, and has found to cause no deviation to the passage of a hockey ball rolled thereover.
1. A method of providing a line or other marking in an artificial turf surface, or the like comprising: a. securing along the desired position of the marking a tape comprising an electrical heating element and having on opposed faces thereof a layer of a hot-melt adhesive; b. laying a strip of a marking material on the tape; c. passing an electric current through the
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (6)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Marking artificial turf This invention relates to a method of providing a line marking in an artificial turf surface or the like. The use of artificial turf surfaces is becoming increasingly common, especially for sports areas, in view of their ease of maintenance. Typically, such surfaces consist of a carpet formed of tufts of flat plastics filaments bonded to a backing material. An especially useful plastics material has been found to be polypropylene. Line markings for defining areas on the playing surface for use in games such as tennis and soccer cannot readily be provided by the conventional techniques of applying a line marking paint, because polypropylene and other polyolefin materials, by virtue of their essentially oily nature, do not readily receive paints thereon. In practice, where paints are used, the lines have to be renewed regularly, with consequent maintenance costs arising. Line markings are therefore typically provided by cutting the artificial turf playing surface material and inserting a narrow strip of a different coloured artificial turf material. This may be done in the conventional manner for joining carpets using tapes. Because of the nature of the wear upon the carpet, these taped joins provide points of weakness where separation can occur. A further difficulty arises in cutting and joining long strips of the playing surface accurately. According to the present invention, a method of providing a line or other marking in an artificial turf surface or the like comprises: a. securing along the desired position of the marking a tape comprising an electrical heating element and having on opposed faces thereof a layer of a hot-melt adhesive; b. laying a marking material on the tape; c. passing an electric current through the heating element to melt the adhesive; d. pressing or rolling the strip on to the tape; and; e. allowing the tape to cool. Preferably the tape is initially secured on the desired position of the marking by nails, which pass through the tape and through the playing surface into the base upon which the artificial turf is laid, for example soil or a prepared sand and aggregate base. The hot-melt adhesive is preferably chosen so as to melt at the same or a higher temperature than the material forming the pile of the artificial turf, which is preferably polypropylene. Thus, the polypropylene pile melts with the hot-melt adhesive, enabling very close compaction to take place during rolling. This gives a very low profile to the strip so that the line marking does not affect the passage of, say, a ball rolling across it. Although the invention is described herein with particular reference to the formation of lines, it will be appreciated that other markings, for example letters or numerals, may be applied in accordance with the invention. Equally, surfaces other than sports surfaces may be marked by the method, such as general pedestrian surfaces, and even carpets. The method of the invention permits line and other markings to be provided quickly and accurately without reducing the strength of the turf surface. Reference is made to the drawings, in which: Figure 1 is a section through a portion of the playing surface and through the tape and strip before they are secured; and Figure 2 is a corresponding view after the strip has been secured. The playing surface 1 comprises a tufted polypropylene pile 2 bonded to a backing material 3, laid upon a base 4, which is typically sand or sand mixed with aggregate material, and possibly including stabilising and bounce altering layers between the sand and the playing surface. To mark a line in the playing surface, a double-sided tape 5 comprising an aluminium heating element sandwiched between two reinforced layers of hot-melt adhesive, is positioned along the desired line and secured using nails 6. A suitable tape is that sold by Silvaseam Limited under the name "TA K- TAPE". A strip of different coloured artificial turf material 7 is laid over the tape 5, and the aluminium heating element in the tape is then connected to an electrical supply, normally a transformer providing a relatively high current at low voltage. When the electrical current has heated the tape sufficiently to melt the adhesive, the strip 7 is then rolled firmly onto the tape, and the electrical supply is disconnected to allow the tape to cool. After cooling, the strip will be firmly bonded to the playing surface 1, as shown in Fig. 2. The polypropylene pile on the strip 7 and the surface 1 is of a sufficient length to permit, with some flattening of that on the strip, a uniform height to be assumed by the pile in use. The strip is therefore not prominent above the remainder of the surface in use, and has found to cause no deviation to the passage of a hockey ball rolled thereover. CLAIMS
1. A method of providing a line or other marking in an artificial turf surface, or the like comprising: a. securing along the desired position of the marking a tape comprising an electrical heating element and having on opposed faces thereof a layer of a hot-melt adhesive; b. laying a strip of a marking material on the tape; c. passing an electric current through the heating element to melt the adhesive; d. pressing or rolling the strip on to the tape; and e. allowing the tape to cool.
2. A method according to Claim 1, wherein the tape is initially secured over the desired position of the marking by nails which pass through the tape and through the turf surface into the base upon which the artificial turf is laid.
3. A method according to Claim 2, wherein the base is soil or a prepared sand and aggregate base.
4. A method according to Claim 1, 2 or 3, wherein the hot-melt adhesive is chosen so as to melt at the same or a higher temperature than the material forming the pile of the artificial turf.
5. A method according to any preceding claim, wherein the pile of the artificial turf is formed from polypropylene.
6. A method of providing a line or other marking in an artificial turf surface, substantially as described with reference to the drawings.
GB08429449A 1983-11-22 1984-11-21 Marking artificial turf Expired GB2150036B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838331073A GB8331073D0 (en) 1983-11-22 1983-11-22 Line markings

Publications (3)

Publication Number Publication Date
GB8429449D0 GB8429449D0 (en) 1985-01-03
GB2150036A true GB2150036A (en) 1985-06-26
GB2150036B GB2150036B (en) 1987-10-21

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Family Applications (2)

Application Number Title Priority Date Filing Date
GB838331073A Pending GB8331073D0 (en) 1983-11-22 1983-11-22 Line markings
GB08429449A Expired GB2150036B (en) 1983-11-22 1984-11-21 Marking artificial turf

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB838331073A Pending GB8331073D0 (en) 1983-11-22 1983-11-22 Line markings

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GB (2) GB8331073D0 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164861A (en) * 1984-10-03 1986-04-03 En Tout Cas Plc Artificial grass sports surface
US4832331A (en) * 1987-10-13 1989-05-23 Brandli Duane L Athletic field marker
US5158282A (en) * 1991-05-01 1992-10-27 Winter Cyril D Line markers for tennis courts and the like
JP2016522341A (en) * 2013-06-05 2016-07-28 フアン ミゲル マヨルドモ ビセンテＪｕａｎ Ｍｉｇｕｅｌ ＭＡＹＯＲＤＯＭＯ ＶＩＣＥＮＴＥ System and method for marking artificial grass mats and artificial grass mats

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164861A (en) * 1984-10-03 1986-04-03 En Tout Cas Plc Artificial grass sports surface
US4832331A (en) * 1987-10-13 1989-05-23 Brandli Duane L Athletic field marker
US5158282A (en) * 1991-05-01 1992-10-27 Winter Cyril D Line markers for tennis courts and the like
JP2016522341A (en) * 2013-06-05 2016-07-28 フアン ミゲル マヨルドモ ビセンテＪｕａｎ Ｍｉｇｕｅｌ ＭＡＹＯＲＤＯＭＯ ＶＩＣＥＮＴＥ System and method for marking artificial grass mats and artificial grass mats
EP3006095A4 (en) * 2013-06-05 2017-03-08 Juan Miguel Mayordomo Vicente Marking system and marking method for artificial turf mats, and artificial turf mats

Also Published As

Publication number Publication date
GB8429449D0 (en) 1985-01-03
GB8331073D0 (en) 1983-12-29
GB2150036B (en) 1987-10-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941121