GB2155401A - Sports mat - Google Patents

Sports mat Download PDF

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Publication number
GB2155401A
GB2155401A GB08406351A GB8406351A GB2155401A GB 2155401 A GB2155401 A GB 2155401A GB 08406351 A GB08406351 A GB 08406351A GB 8406351 A GB8406351 A GB 8406351A GB 2155401 A GB2155401 A GB 2155401A
Authority
GB
United Kingdom
Prior art keywords
mat
layer
mats
sports
fire
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.)
Withdrawn
Application number
GB08406351A
Other versions
GB8406351D0 (en
Inventor
Anthony R Walkey
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.)
KASSFARE BRITON Ltd
Original Assignee
KASSFARE BRITON Ltd
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 KASSFARE BRITON Ltd filed Critical KASSFARE BRITON Ltd
Priority to GB08406351A priority Critical patent/GB2155401A/en
Publication of GB8406351D0 publication Critical patent/GB8406351D0/en
Publication of GB2155401A publication Critical patent/GB2155401A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B6/00—Mats or the like for absorbing shocks for jumping, gymnastics or the like
    • 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
    • A63C19/04—Mats or carpets for courts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/32—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/028—Hollow fillers; Syntactic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2471/00—Floor coverings
    • B32B2471/04—Mats

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

A sports mat which comprises a core (1) of resilient plastics, preferably polyurethane, foam, an outer layer (2) of fire retardent plastics, preferably filled polyurethane, foam and optionally an outermost cover (3) of, preferably fire retardent, fabric. The mat has the resilience of known mats but is protected from the effects of fire. <IMAGE>

Description

SPECIFICATION Sports mat The present invention relates to sports mats and more particularly sports mats which are protected from the effects of fire.
The term "sports mat" is used herein to cover gymnastic mats, judo mats, wrestling mats, crash safety mats, as well as general sports mats. It also covers high jump and pole vault landing areas.
Known sports mats comprise slabs of resilient polyurethane foam of thickness and resilience dependent upon the sport for which they are intended. Polyurethane is an ideal material since it combines strength with good resilient properties.
However, it suffers from one major drawback. Polyurethanes are, in general, highly inflammable and when they burn, they give off toxic and densely choking fumes. Any gymnasium or sports centre would have many of these mats and in the event of a fire there would be a high risk of loss of life from suffocation.
Also known are fire retardant filled polyurethane foams. At least some of the air spaces of conventional foams are filled with inert material such as carbon or aluminium salts. However, the presence of the filler necessarily reduces the resilience of the foam. The fire retardant foams are also more expensive than conventional foams. For both these reasons, fire retardant polyurethane foam is not suitable as the basis for sports mats.
It is an object of the present invention to provide a sports mat which is sufficiently resilient to be athletically and gymnastically safe and sufficiently fire retardant to be safe in the event of fire.
According to the present invention there is provided a sports mat comprising a core of resilient plastics foam and an outer layer of fire retardant plastics foam.
The preferred core material is polyurethane foam.
The preferred outer layer material is polyurethane foam filled with an inert material.
Advantageously the outer layer is between 8 and 12mm in thickness.
The core layer may be bonded to the outer layer by a non-flammable adhesive, for example one selected from the VB205 range.
Additionally there may be an outermost cover layer of fabric, which is preferabiy treated to be fire retardant.
The fabric may be canvas or PVC-coated nylon.
An embodiment of the present invention will now be more particularly described by way of example, and with reference to the accompanying drawing, which shows a cross-section through a sports mat embodying the invention.
Referring now to the drawing, there is shown a cross-section through a typical sports mat embodying the invention. It comprises a core or compression layer 1. This layer is composed of one of a range of mixtures of reconstituted polyurethane foams and prime foams, which mixtures range in density from 5kg to 50kg dependant upon the event for which the mat is intended. To attain the higher densities, a higher proportion of reconstituted or rebonded polyurethane foam is used.
The compression layer 1 is surrounded by an outer layer 2 of fire retardant polyurethane foam.
This layer is bonded to the compression layer 1 by means of a suitable non-flammable adhesive, such as one selected from the VB205 range. This outer barrier layer is composed of a polyurethane foam filled with an inert material, such as carbon or aluminium salts.
The fire retardant polyurethane foam does not support combustion, it does not melt or drip, it does not suffer wicking effects from contamination by dust and dirt, and when a flame is applied, the material simply chars leaving an inert layer that helps protect the inner layer. A thickness of between 8 and 12mm is sufficient to protect the compression layer 1 from burning.
One suitable fire retardant polyurethane foam is Vitafoam VFR Barrier. Certain of its flammability properties are given below. It is self-extinguishingl no burn rate (FMVSS 302). It has a char length of 4 to 5 mm (BS 4735). It resists ignition (ASTM 1962:74). It has an oxygen index of 51% plus or minus 10% and passes all grades of CAA 8/FAA.
UL94 (Ciass) gives a result of 94V-O. It has a smoke maximum obscuration of 40- (BS5111). As to its compression and load-bearing characteristics, it complies with BS3379:75.
An outermost cover layer 3 of fire-retardant standard canvas or PVC-coated nylon, dependant on the event for which the mat is intended, is either sewn or welded to the outside of the barrier layer 2.
The fact that the fire-retardant barrier layer 2 is not only fire-retardant but also resilient, albeit to a lesser degree than the compression layer 1, enables the compression layer 1 to be thinner than would be the case if the fire-retardant layer were not so resilient. Thereby certain savings are made in the material of the compression layer which at least partially offsets the additional costs in covering it with a barrier layer.
Mats may be made in many thicknesses. For example, for general floor mats for judo, wrestling or tumbling, the thicknesses may be 26mm, 30mm, 32mm, 35mm, 38mm, 40mm or 45mm. The areas of the mats may vary between 1 m square to, for example, 12m x 1m.
Gymnastic crash mats are thicker, for example 152mm, 203mm, 254mm or 305mm. The area of such mats is generally in the region of 2.5m x 1.2m although, of course, other sizes are possible.
For high jump and pole vault landing areas, the mats must be thicker still. Typical thicknesses are between 305mm and 800mm. The area of such mats may be between 1.5m x 2.5m up to 6.25m x 7.65m.
1. A sports mat comprising a core of resilient plastics foam and an outer layer of fire retardant plastics foam.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (12)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Sports mat The present invention relates to sports mats and more particularly sports mats which are protected from the effects of fire. The term "sports mat" is used herein to cover gymnastic mats, judo mats, wrestling mats, crash safety mats, as well as general sports mats. It also covers high jump and pole vault landing areas. Known sports mats comprise slabs of resilient polyurethane foam of thickness and resilience dependent upon the sport for which they are intended. Polyurethane is an ideal material since it combines strength with good resilient properties. However, it suffers from one major drawback. Polyurethanes are, in general, highly inflammable and when they burn, they give off toxic and densely choking fumes. Any gymnasium or sports centre would have many of these mats and in the event of a fire there would be a high risk of loss of life from suffocation. Also known are fire retardant filled polyurethane foams. At least some of the air spaces of conventional foams are filled with inert material such as carbon or aluminium salts. However, the presence of the filler necessarily reduces the resilience of the foam. The fire retardant foams are also more expensive than conventional foams. For both these reasons, fire retardant polyurethane foam is not suitable as the basis for sports mats. It is an object of the present invention to provide a sports mat which is sufficiently resilient to be athletically and gymnastically safe and sufficiently fire retardant to be safe in the event of fire. According to the present invention there is provided a sports mat comprising a core of resilient plastics foam and an outer layer of fire retardant plastics foam. The preferred core material is polyurethane foam. The preferred outer layer material is polyurethane foam filled with an inert material. Advantageously the outer layer is between 8 and 12mm in thickness. The core layer may be bonded to the outer layer by a non-flammable adhesive, for example one selected from the VB205 range. Additionally there may be an outermost cover layer of fabric, which is preferabiy treated to be fire retardant. The fabric may be canvas or PVC-coated nylon. An embodiment of the present invention will now be more particularly described by way of example, and with reference to the accompanying drawing, which shows a cross-section through a sports mat embodying the invention. Referring now to the drawing, there is shown a cross-section through a typical sports mat embodying the invention. It comprises a core or compression layer 1. This layer is composed of one of a range of mixtures of reconstituted polyurethane foams and prime foams, which mixtures range in density from 5kg to 50kg dependant upon the event for which the mat is intended. To attain the higher densities, a higher proportion of reconstituted or rebonded polyurethane foam is used. The compression layer 1 is surrounded by an outer layer 2 of fire retardant polyurethane foam. This layer is bonded to the compression layer 1 by means of a suitable non-flammable adhesive, such as one selected from the VB205 range. This outer barrier layer is composed of a polyurethane foam filled with an inert material, such as carbon or aluminium salts. The fire retardant polyurethane foam does not support combustion, it does not melt or drip, it does not suffer wicking effects from contamination by dust and dirt, and when a flame is applied, the material simply chars leaving an inert layer that helps protect the inner layer. A thickness of between 8 and 12mm is sufficient to protect the compression layer 1 from burning. One suitable fire retardant polyurethane foam is Vitafoam VFR Barrier. Certain of its flammability properties are given below. It is self-extinguishingl no burn rate (FMVSS 302). It has a char length of 4 to 5 mm (BS 4735). It resists ignition (ASTM 1962:74). It has an oxygen index of 51% plus or minus 10% and passes all grades of CAA 8/FAA. UL94 (Ciass) gives a result of 94V-O. It has a smoke maximum obscuration of 40- (BS5111). As to its compression and load-bearing characteristics, it complies with BS3379:75. An outermost cover layer 3 of fire-retardant standard canvas or PVC-coated nylon, dependant on the event for which the mat is intended, is either sewn or welded to the outside of the barrier layer 2. The fact that the fire-retardant barrier layer 2 is not only fire-retardant but also resilient, albeit to a lesser degree than the compression layer 1, enables the compression layer 1 to be thinner than would be the case if the fire-retardant layer were not so resilient. Thereby certain savings are made in the material of the compression layer which at least partially offsets the additional costs in covering it with a barrier layer. Mats may be made in many thicknesses. For example, for general floor mats for judo, wrestling or tumbling, the thicknesses may be 26mm, 30mm, 32mm, 35mm, 38mm, 40mm or 45mm. The areas of the mats may vary between 1 m square to, for example, 12m x 1m. Gymnastic crash mats are thicker, for example 152mm, 203mm, 254mm or 305mm. The area of such mats is generally in the region of 2.5m x 1.2m although, of course, other sizes are possible. For high jump and pole vault landing areas, the mats must be thicker still. Typical thicknesses are between 305mm and 800mm. The area of such mats may be between 1.5m x 2.5m up to 6.25m x 7.65m. CLAIMS
1. A sports mat comprising a core of resilient plastics foam and an outer layer of fire retardant plastics foam.
2. A mat as claimed in claim 1, wherein the core material is polyurethane foam.
3. A mat as claimed in either claim 1 or claim 2, wherein the outer layer material is polyurethane foam filled with an inert material.
4. A mat as claimed in claim 3, wherein the inert material is carbon.
5. A mat as claimed in claim 3, wherein the inert material is a salt of aluminium.
6. A mat as claimed in any one of the preceding claims, wherein the outer layer is between 8 and 12mm in thickness.
7. A mat as claimed in any one of the preceding claims, wherein the core layer is bonded to the outer layer by a non-flammable adhesive.
8. A mat as claimed in any one of the preceding claims, further comprising an outermost cover layer of fabric.
9. A mat as claimed in claim 8, wherein the fabric is treated to be fire retardant.
10. A mat as claimed in either claim 8 or claim 9, wherein the fabric is canvas.
11. A mat as claimed in either claim 8 or claim 9, wherein the fabric is PVC coated nylon.
12. A sports mat substantially as described herein with reference to the accompanying drawing.
GB08406351A 1984-03-10 1984-03-10 Sports mat Withdrawn GB2155401A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08406351A GB2155401A (en) 1984-03-10 1984-03-10 Sports mat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08406351A GB2155401A (en) 1984-03-10 1984-03-10 Sports mat

Publications (2)

Publication Number Publication Date
GB8406351D0 GB8406351D0 (en) 1984-04-11
GB2155401A true GB2155401A (en) 1985-09-25

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4824719A (en) * 1986-01-31 1989-04-25 Recticel Fire-resistant intermediate layer for covering articles of seating furniture, and articles of seating furniture which are provided with a covering containing such an intermediate layer
WO1998046670A1 (en) * 1997-04-11 1998-10-22 Jovan Keresic Manufacturing process for landing mats for judo and playing and the mat obtained accordingly
GB2309714B (en) * 1996-01-30 2000-02-23 Robin Kenneth Mackenzie Sound deadening floor construction
CN106983983A (en) * 2017-03-07 2017-07-28 泰山体育产业集团有限公司 A kind of health-care environment protection type landing mat
CN107737433A (en) * 2017-11-10 2018-02-27 泰山体育产业集团有限公司 A kind of environment-friendly type judo mat
CN107930004A (en) * 2017-11-10 2018-04-20 泰山体育产业集团有限公司 A kind of new athletic gymnastics landing mat inner tube of a tyre
RU197615U1 (en) * 2020-02-04 2020-05-18 Общество с ограниченной ответственностью "ЖАНЕТТ" SPORTS FLOORING MODULE

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1031301A (en) * 1963-02-01 1966-06-02 Bayer Ag Building and structural elements based on synthetic plastic materials
GB1370642A (en) * 1970-09-30 1974-10-30 Lion Fat Oil Co Ltd Foamed thermoplastic synthetic resin materials
GB1446013A (en) * 1973-07-14 1976-08-11 Dunlop Ltd Flame-retardant composite articles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1031301A (en) * 1963-02-01 1966-06-02 Bayer Ag Building and structural elements based on synthetic plastic materials
GB1370642A (en) * 1970-09-30 1974-10-30 Lion Fat Oil Co Ltd Foamed thermoplastic synthetic resin materials
GB1446013A (en) * 1973-07-14 1976-08-11 Dunlop Ltd Flame-retardant composite articles

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4824719A (en) * 1986-01-31 1989-04-25 Recticel Fire-resistant intermediate layer for covering articles of seating furniture, and articles of seating furniture which are provided with a covering containing such an intermediate layer
GB2309714B (en) * 1996-01-30 2000-02-23 Robin Kenneth Mackenzie Sound deadening floor construction
WO1998046670A1 (en) * 1997-04-11 1998-10-22 Jovan Keresic Manufacturing process for landing mats for judo and playing and the mat obtained accordingly
CN106983983A (en) * 2017-03-07 2017-07-28 泰山体育产业集团有限公司 A kind of health-care environment protection type landing mat
CN107737433A (en) * 2017-11-10 2018-02-27 泰山体育产业集团有限公司 A kind of environment-friendly type judo mat
CN107930004A (en) * 2017-11-10 2018-04-20 泰山体育产业集团有限公司 A kind of new athletic gymnastics landing mat inner tube of a tyre
RU197615U1 (en) * 2020-02-04 2020-05-18 Общество с ограниченной ответственностью "ЖАНЕТТ" SPORTS FLOORING MODULE

Also Published As

Publication number Publication date
GB8406351D0 (en) 1984-04-11

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