GB1575515A - Channel-shaped strip structures - Google Patents

Channel-shaped strip structures Download PDF

Info

Publication number
GB1575515A
GB1575515A GB16921/76A GB1692176A GB1575515A GB 1575515 A GB1575515 A GB 1575515A GB 16921/76 A GB16921/76 A GB 16921/76A GB 1692176 A GB1692176 A GB 1692176A GB 1575515 A GB1575515 A GB 1575515A
Authority
GB
United Kingdom
Prior art keywords
channel
plastics material
strip
sealing
foamed plastics
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.)
Expired
Application number
GB16921/76A
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.)
Draftex Development AG
Original Assignee
Draftex Development AG
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 Draftex Development AG filed Critical Draftex Development AG
Priority to GB16921/76A priority Critical patent/GB1575515A/en
Priority to IT09421/77A priority patent/IT1081402B/en
Priority to JP1977050846U priority patent/JPS52148619U/ja
Priority to DE7712648U priority patent/DE7712648U1/en
Priority to ES1977237291U priority patent/ES237291U/en
Priority to FR7712445A priority patent/FR2361585A1/en
Publication of GB1575515A publication Critical patent/GB1575515A/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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
    • 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
    • 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
    • B60J10/33—Sealing arrangements characterised by the fastening means using integral U-shaped retainers characterised by the configuration of the retaining lips

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Seal Device For Vehicle (AREA)
  • Laminated Bodies (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Body Structure For Vehicles (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Description

(54) IMPROVEMENTS IN AND RELATING TO CHANNEL-SHAPED STRIP STRUCTURES (71) We, DRAFTEX DEVELOPMENT AG., ajoint stock company organized under the laws of Switzerland, of Schanbiihl 3,6300 Zug, Switzerland, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention relates to channel-shaped guiding, sealing and finishing strips (hereinafter referred to as "sealing strips"), such as for use for example, in vehicle body construction for attachment to flanges around body openings.
According to the invention, there is provided a channel-shaped sealing, guiding or finishing strip comprising a metal core or carrier completely covered with foamed plastics material, and including at least one gripping rib running along one inside wall of the channel and made of foamed plastics material which is formed integrally with the material covering the carrier.
According to the invention, there is also provided a method of manufacturing a channelshaped sealing strip, comprising the step of extruding foamed plastics material so as to completely cover a metal core or carrier which, either before or after the extrusion step, is formed into channd shape and in which the extrusion step simultaneously forms, in the same foamed plastics material, at least one gripping rib running along and attached to an inside wall of the channel.
Sealing strips embodying the invention and methods according to the invention of making sealing strips, will now be described, by way of example, with reference to the accompanying drawings in which: Figure 1 is a perspective view of one form of the sealing strip; Figure 2 is a section on line II-II of Figure 1 and Figure 3 is a perspective view of a metal carrier for the strips.
As shown in Figure 1, the sealing strip is made of channel-shaped plastics material 10 which is extruded over a channel-shaped metal core or carrier 12. The carrier 12 may take any convenient form. For example, it may comprise a series of U-shaped elements 14 (Figures 2) joined together by short interconnecting links 16 so as to be reasonably flexible about its longitudinal axis. Instead, the elements may be entirely separate from each other. In another example, the carrier is made of looped wire.
However, any other suitable form is possible.
As shown in Figure 1, the plastics material 10 is extruded so as to provide gripping ribs 18 and 20, the gripping rib 20 being thicker than each of the three ribs 1 8.
In use, the sealing strip is fitted over a flange surrounding an opening, a door opening for example, in a vehicle body and provides a decorative and protective function. The gripping ribs 18 and 20 help to retain the strip in position on the flange and prevent flow of draught and moisture around the interior of the channel.
In accordance with a feature of the invention, the plastics material 10, including the material of the ribs 18 and 20, is extruded in one operation from foamed polyvinyl chloride (PVC) or other similar foamed material. All the plastics material of the strip is therefore the same.
The use of a foamed plastics material for the complete covering and the gripping ribs of the strip is advantageous in that it saves weight as compared with a sealing strip in which the channel-shaped plastics covering, at least, is made of unfoamed plastics material. Furthermore, the use of foamed plastics material for the gripping ribs gives the latter a softer consistency which provides a better sealing and gripping function than would be the case were they to be made of unfoamed material. As compared with a sealing strip in which the main material is relatively hard and the gripping ribs relatively soft, the strip illustrated is advantageous in that it is all extruded in a single operation using a single extruder.
The use of foamed material is also advantageous in that it saves weight and gives an improved "softer" appearance with a matt finish. It is less likely to shrink than unfoamed material.
If desired, the sealing strip may have a sealing section, such as of tubular cross-section, running along and attached to an outside wall of the channel to provide a seal onto which a door for the vehicle body opening can sealingly close. The sealing section can be made of foamed plastics material and can be made separately and adhesively or otherwise attached to the sealing strip, or it can be extruded integrally with the remainder of the plastics material.
The shape and numbers of the gripping ribs 18, 20 can be varied as desired.
The carrier 12 may be made by slitting or slotting a metal blank and then bending the blank into channel form. The extrusion process may be carried out before or after the metal carrier has been bent into channel form.
WHAT WE CLAIM IS: 1. A channel-shaped sealing, guiding or finishing strip comprising a metal core or carrier completely covered with foamed plastics material, and including at least one gripping rib running along one inside wall of the channel and made of foamed plastics which is formed integrally with the material covering the carrier.
2. A strip according to claim 1, in which the foamed plastics material is formed into the required shape by means of an extruder.
3. A method of manufacturing a channel shaped sealing strip, comprising the step of extruding foamed plastics material so as to completely cover a metal core or carrier which, either before or after the extrusion step, is formed into channel shape, and in which the extrusion step simultaneously forms, in the same foamed plastics material, at least one gripping rib running along and attached to an inside wall of the channel.
4. A channel-shaped sealing, guiding or finishing strip substantially as described with reference to the accompanying drawings.
5. Amethod substantially as described with reference to the accompanying drawings of making a channel-shaped sealing, guiding or finishing strip.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. made of unfoamed plastics material. Furthermore, the use of foamed plastics material for the gripping ribs gives the latter a softer consistency which provides a better sealing and gripping function than would be the case were they to be made of unfoamed material. As compared with a sealing strip in which the main material is relatively hard and the gripping ribs relatively soft, the strip illustrated is advantageous in that it is all extruded in a single operation using a single extruder. The use of foamed material is also advantageous in that it saves weight and gives an improved "softer" appearance with a matt finish. It is less likely to shrink than unfoamed material. If desired, the sealing strip may have a sealing section, such as of tubular cross-section, running along and attached to an outside wall of the channel to provide a seal onto which a door for the vehicle body opening can sealingly close. The sealing section can be made of foamed plastics material and can be made separately and adhesively or otherwise attached to the sealing strip, or it can be extruded integrally with the remainder of the plastics material. The shape and numbers of the gripping ribs 18, 20 can be varied as desired. The carrier 12 may be made by slitting or slotting a metal blank and then bending the blank into channel form. The extrusion process may be carried out before or after the metal carrier has been bent into channel form. WHAT WE CLAIM IS:
1. A channel-shaped sealing, guiding or finishing strip comprising a metal core or carrier completely covered with foamed plastics material, and including at least one gripping rib running along one inside wall of the channel and made of foamed plastics which is formed integrally with the material covering the carrier.
2. A strip according to claim 1, in which the foamed plastics material is formed into the required shape by means of an extruder.
3. A method of manufacturing a channel shaped sealing strip, comprising the step of extruding foamed plastics material so as to completely cover a metal core or carrier which, either before or after the extrusion step, is formed into channel shape, and in which the extrusion step simultaneously forms, in the same foamed plastics material, at least one gripping rib running along and attached to an inside wall of the channel.
4. A channel-shaped sealing, guiding or finishing strip substantially as described with reference to the accompanying drawings.
5. Amethod substantially as described with reference to the accompanying drawings of making a channel-shaped sealing, guiding or finishing strip.
GB16921/76A 1976-04-26 1976-04-26 Channel-shaped strip structures Expired GB1575515A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB16921/76A GB1575515A (en) 1976-04-26 1976-04-26 Channel-shaped strip structures
IT09421/77A IT1081402B (en) 1976-04-26 1977-04-21 STRIKING STRIPS OR FINISHING AND SIMILAR IN THE FORM OF A PROFILE FOR DOOR EDGES IN MOTORCYCLE BODYWORK AND FOR OTHER USES
JP1977050846U JPS52148619U (en) 1976-04-26 1977-04-21
DE7712648U DE7712648U1 (en) 1976-04-26 1977-04-22 U-shaped profile strip
ES1977237291U ES237291U (en) 1976-04-26 1977-04-25 Channel-shaped strip structures
FR7712445A FR2361585A1 (en) 1976-04-26 1977-04-25 SEALING, FINISHING AND GUIDING STRIPS INCLUDING A REINFORCEMENT ENTIRELY COVERED WITH A FOAM OF A PLASTIC MATERIAL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16921/76A GB1575515A (en) 1976-04-26 1976-04-26 Channel-shaped strip structures

Publications (1)

Publication Number Publication Date
GB1575515A true GB1575515A (en) 1980-09-24

Family

ID=10086081

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16921/76A Expired GB1575515A (en) 1976-04-26 1976-04-26 Channel-shaped strip structures

Country Status (6)

Country Link
JP (1) JPS52148619U (en)
DE (1) DE7712648U1 (en)
ES (1) ES237291U (en)
FR (1) FR2361585A1 (en)
GB (1) GB1575515A (en)
IT (1) IT1081402B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3008362A1 (en) * 1980-03-05 1981-09-17 Gebr. Happich Gmbh, 5600 Wuppertal U=section rubber or plastics strip - has reinforcing ribs coupled together to allow even relative movement
GB2132061A (en) * 1982-12-17 1984-07-04 Robert Hart Footrest for a garden tool
GB2163470A (en) * 1984-08-23 1986-02-26 Silent Channel Prod Ltd Sealing strip

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1599749A (en) * 1978-05-31 1981-10-07 Draftex Dev Ag Channel-shaped strip structures

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4870221A (en) * 1971-12-27 1973-09-22
JPS545022Y2 (en) * 1972-05-10 1979-03-03

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3008362A1 (en) * 1980-03-05 1981-09-17 Gebr. Happich Gmbh, 5600 Wuppertal U=section rubber or plastics strip - has reinforcing ribs coupled together to allow even relative movement
GB2132061A (en) * 1982-12-17 1984-07-04 Robert Hart Footrest for a garden tool
GB2163470A (en) * 1984-08-23 1986-02-26 Silent Channel Prod Ltd Sealing strip
US4690412A (en) * 1984-08-23 1987-09-01 Tuckley Trevor R Strip structure intended for clamping on a flange

Also Published As

Publication number Publication date
IT1081402B (en) 1985-05-21
ES237291U (en) 1978-09-16
DE7712648U1 (en) 1977-07-28
FR2361585A1 (en) 1978-03-10
JPS52148619U (en) 1977-11-11

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19970418