GB2250313A - Thermoplastics edging strip - Google Patents
Thermoplastics edging strip Download PDFInfo
- Publication number
- GB2250313A GB2250313A GB9024352A GB9024352A GB2250313A GB 2250313 A GB2250313 A GB 2250313A GB 9024352 A GB9024352 A GB 9024352A GB 9024352 A GB9024352 A GB 9024352A GB 2250313 A GB2250313 A GB 2250313A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- outer layer
- thermoplastics
- edging
- edging strip
- 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
Links
- 238000007688 edging Methods 0.000 title claims abstract description 11
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 11
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 abstract description 8
- 238000001125 extrusion Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920003031 santoprene Polymers 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/12—Fastening strips or bars to sheets or plates, e.g. rubber strips, decorative strips for motor vehicles, by means of clips
- F16B5/126—Fastening strips or bars to sheets or plates, e.g. rubber strips, decorative strips for motor vehicles, by means of clips at least one of the sheets, plates, bars or strips having integrally formed or integrally connected snap-in-features
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B95/00—Fittings for furniture
- A47B95/04—Keyplates; Ornaments or the like
- A47B95/043—Protecting rims, buffers or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J10/00—Sealing arrangements
- B60J10/15—Sealing arrangements characterised by the material
- B60J10/16—Sealing arrangements characterised by the material consisting of two or more plastic materials having different physical or chemical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J10/00—Sealing arrangements
- B60J10/30—Sealing arrangements characterised by the fastening means
- B60J10/32—Sealing arrangements characterised by the fastening means using integral U-shaped retainers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F19/00—Other details of constructional parts for finishing work on buildings
- E04F19/02—Borders; Finishing strips, e.g. beadings; Light coves
- E04F19/06—Borders; Finishing strips, e.g. beadings; Light coves specially designed for securing panels or masking the edges of wall- or floor-covering elements
- E04F19/061—Borders; Finishing strips, e.g. beadings; Light coves specially designed for securing panels or masking the edges of wall- or floor-covering elements used to finish off an edge or corner of a wall or floor covering area
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The edging strip is of U-shaped cross section and consists of an outer layer 1 and a U-shaped stiffening core 2, both of thermoplastics. The outer layer is formed into a pair of inwardly directed gripping fingers 4, 5 which are directed away from the open mouth 6 of the strip. The strip is formed by feeding the two materials through a common extrusion die so that they become integrally bonded to each other. Both materials contribute to the resilience of the strip, and the strip is highly resistant to moisture, oils, greases and diesel. <IMAGE>
Description
EDGING STRIPS
TECHNICAL FIELD OF THE INVENTION
This invention relates to strips which are intended for covering the exposed edges of materials such as metal, wood, fibreglass, plastics etc. to protect them from damage, provide an aesthetic finish, and/or to cover sharp edges which may otherwise cause injury.
BACKGROUND
An existing form of extruded edging strip which is widely used incorporates metal stiffening elements.
However, the metal elements are not very resilient so that the gripping properties of the strip depends almost entirely on the properties of the extruded material. In addition, the metal stiffening elements do not form a very good bond with the extruded material. One consequence of this is that when they are exposed at the cut ends of the strip moisture can easily enter the strip and cause severe deterioration of the strip due to rusting of the metal elements.
An object of the present invention may be viewed as being to provide a form of edge protection strip of unitary structure which has good gripping properties and which is highly moisture-resistant.
SUMMARY OF THE INVENTION
The present invention proposes a thermoplastics edging strip of generally U-shaped section having an outer layer and an inner stiffening core, also of generally
U-shaped section, which is formed of a more rigid thermoplastics than the outer layer.
Although the inner core is more rigid than the outer layer it can be more resilient than many metals and can thus contribute to the gripping properties of the strip.
The stiffening core may be totally enclosed within the outer layer or it may be exposed on the inner surface of the strip. The core will usually be formed at the same time as the outer layer by an extrusion process so that the two become integrally bonded together during formation of the strip.
The inner core is preferably of a semi-rigid thermoplastic such as polypropylene.
The outer layer is preferably of a relatively flexible and resilient thermoplastics and may be of synthetic or natural rubber such as SANTOPRENE or it may be of a synthetic plastics material.
In common with existing edge protection strips, the two limbs of the strip will normally be provided with a pair of opposed gripping fingers extending continuously along the length of the strip and being directed away from the mouth of the strip. These gripping fingers are preferably integrally formed with the outer resilient layer of the strip.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is exemplified in the accompanying drawing which is a transverse cross section through an edging strip of the invention.
DETAILED DESCRIPTION OF THE DRAWINGS
The edging strip is of substantially constant U-shaped cross section and consists of an outer layer 1 and an inner stiffening core 2.
The inner core 2 is also of U-shaped cross section and is enclosed within the outer layer l save for its inner surface 3 which is exposed except for narrow strips adjacent to the ends of the arms of the U-section where the outer layer is formed into a pair of inwardly directed gripping fingers 4, 5. These gripping fingers extend continuously along the strip and are directed away from the open mouth 6 of the strip towards the base of the U-section. Thus, when the strip is passed over an edge to be protected the fingers 4, 5 are urged apart to resiliently grip that edge.
The outer layer 1, including the integral gripping fingers 4 and 5, is formed of a flexible and resilient thermoplastic rubber such as SANTOPRENE. The core 2 is formed of a resilient semi-rigid thermoplastic such as polypropylene. (A suitable type of polypropylene is available with the code ICI GSF 113.) The strip is formed by feeding the two materials through a common extrusion die so that they become integrally bonded to each other.
Since the two materials both have inherent resilience they both contribute to the resilience of the strip, but because the inner core 2 is more rigid than the outer layer it provides the strip with an inherent stiffness which makes it convenient to handle. Since the strip is formed entirely of thermoplastics it is highly resistant to moisture, oils, greases and diesel.
Claims (4)
1. A thermoplastics edging strip of generally Ushaped section having an outer layer and an inner stiffening core, also of generally U-shaped section, which is formed of a more rigid thermoplastics than the outer layer.
2. An edging strip according to Claim 1, in which the two limbs of the strip are provided with a pair of opposed gripping fingers extending continuously along the length of the strip and directed away from the mouth of the strip.
3. An edging strip according to Claim 2, in which the gripping fingers are integrally formed with the outer layer of the strip.
4. A thermoplastics edging strip substantially as described with reference to the drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9024352A GB2250313B (en) | 1990-11-08 | 1990-11-08 | Edging strips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9024352A GB2250313B (en) | 1990-11-08 | 1990-11-08 | Edging strips |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9024352D0 GB9024352D0 (en) | 1990-12-19 |
| GB2250313A true GB2250313A (en) | 1992-06-03 |
| GB2250313B GB2250313B (en) | 1994-03-02 |
Family
ID=10685098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9024352A Expired - Fee Related GB2250313B (en) | 1990-11-08 | 1990-11-08 | Edging strips |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2250313B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005049949A1 (en) * | 2003-11-18 | 2005-06-02 | 14001 System Quality, S.A. | Protective frame cover |
| GB2411924A (en) * | 2004-03-09 | 2005-09-14 | Gencorp Property Inc | Window pane support strip |
| EP1586476A1 (en) * | 2004-04-14 | 2005-10-19 | Metzeler Automotive Profile Systems Transieres | New grip-forming profile made of elastomer or plastomer to be mounted on a projecting motor vehicle body part |
| EP1985204A1 (en) * | 2002-02-25 | 2008-10-29 | BSH Bosch und Siemens Hausgeräte GmbH | Plug profile element |
| WO2008135430A1 (en) * | 2007-05-08 | 2008-11-13 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerated product carrier |
| EP2113468A1 (en) | 2008-04-30 | 2009-11-04 | Delfingen FR-Anteuil S.A. | Flexible protective sheath for a windscreen |
| GB2518228A (en) * | 2013-09-16 | 2015-03-18 | A Fax Ltd | Improved rack protector |
| GB2518227A (en) * | 2013-09-16 | 2015-03-18 | A Fax Ltd | Improved rack protector |
| WO2015193857A1 (en) * | 2014-06-19 | 2015-12-23 | Nestec Sa | Storage or display system with a bin |
| GB2538602A (en) * | 2015-04-02 | 2016-11-23 | Allied Vehicles Ltd | Wheelchair access ramp |
| US9986831B2 (en) | 2013-09-16 | 2018-06-05 | A-Fax Limited | Structure protector |
-
1990
- 1990-11-08 GB GB9024352A patent/GB2250313B/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1985204A1 (en) * | 2002-02-25 | 2008-10-29 | BSH Bosch und Siemens Hausgeräte GmbH | Plug profile element |
| WO2005049949A1 (en) * | 2003-11-18 | 2005-06-02 | 14001 System Quality, S.A. | Protective frame cover |
| GB2411924A (en) * | 2004-03-09 | 2005-09-14 | Gencorp Property Inc | Window pane support strip |
| EP1586476A1 (en) * | 2004-04-14 | 2005-10-19 | Metzeler Automotive Profile Systems Transieres | New grip-forming profile made of elastomer or plastomer to be mounted on a projecting motor vehicle body part |
| FR2868994A1 (en) * | 2004-04-14 | 2005-10-21 | Metzeler Automotive Profile | NEW PROFILE FORMING CLAMP, ELASTOMER OR PLASTOMER, READY TO COIFFER A HIGH PART OF A BODY OF A MOTOR VEHICLE. |
| WO2008135430A1 (en) * | 2007-05-08 | 2008-11-13 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerated product carrier |
| EP2113468A1 (en) | 2008-04-30 | 2009-11-04 | Delfingen FR-Anteuil S.A. | Flexible protective sheath for a windscreen |
| GB2518228A (en) * | 2013-09-16 | 2015-03-18 | A Fax Ltd | Improved rack protector |
| GB2518227A (en) * | 2013-09-16 | 2015-03-18 | A Fax Ltd | Improved rack protector |
| GB2518228B (en) * | 2013-09-16 | 2017-05-24 | A-Fax Ltd | Structure Protector |
| GB2518227B (en) * | 2013-09-16 | 2017-05-24 | A-Fax Ltd | Structure protector |
| US9986831B2 (en) | 2013-09-16 | 2018-06-05 | A-Fax Limited | Structure protector |
| WO2015193857A1 (en) * | 2014-06-19 | 2015-12-23 | Nestec Sa | Storage or display system with a bin |
| GB2538602A (en) * | 2015-04-02 | 2016-11-23 | Allied Vehicles Ltd | Wheelchair access ramp |
| GB2538602B (en) * | 2015-04-02 | 2017-05-24 | Allied Vehicles Ltd | Wheelchair access ramp |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9024352D0 (en) | 1990-12-19 |
| GB2250313B (en) | 1994-03-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20041108 |