GB2329143A - A sealing member - Google Patents

A sealing member Download PDF

Info

Publication number
GB2329143A
GB2329143A GB9719390A GB9719390A GB2329143A GB 2329143 A GB2329143 A GB 2329143A GB 9719390 A GB9719390 A GB 9719390A GB 9719390 A GB9719390 A GB 9719390A GB 2329143 A GB2329143 A GB 2329143A
Authority
GB
United Kingdom
Prior art keywords
corner piece
hollow
extruded component
extruded
component
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Withdrawn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
GB9719390A
Other versions
GB9719390D0 (en
Inventor
Herbert George Evans
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.)
STANDARD PROD Ltd
Original Assignee
STANDARD PROD 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 STANDARD PROD Ltd filed Critical STANDARD PROD Ltd
Priority to GB9719390A priority Critical patent/GB2329143A/en
Publication of GB9719390D0 publication Critical patent/GB9719390D0/en
Publication of GB2329143A publication Critical patent/GB2329143A/en
Withdrawn legal-status Critical Current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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/70—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by moulding
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • 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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/524—Joining profiled elements
    • B29C66/5243—Joining profiled elements for forming corner connections, e.g. for making window frames or V-shaped pieces
    • 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
    • B60J10/20—Sealing arrangements characterised by the shape
    • B60J10/21—Sealing arrangements characterised by the shape having corner parts or bends
    • 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
    • B60J10/20—Sealing arrangements characterised by the shape
    • B60J10/24—Sealing arrangements characterised by the shape having tubular parts
    • 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
    • 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
    • B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Seal Device For Vehicle (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

There is disclosed a sealing member comprising: a first extruded component 1A having a hollow zone, a second extruded component 9A having a hollow zone and being inclined to, and spaced from, the first moulded component 1A, and a corner piece 10A, one region of the corner piece being secured to one end region of the first extruded component 1A and another region of the corner piece being secured to one end region of the second extruded component 9A, the corner piece 10A having a plurality of hollow zones (21-27) which lie along an arcuate line running from the line of the hollow zone in the first extruded component 1A to that of the hollow zone in the second extruded component 9A. There is also disclosed a method of forming such a sealing member.

Description

CORNER MOULDING AND ITS PRODUCTION This invention relates to a corner moulding and its production. The corner moulding to which the present invention applies is principally intended to be a corner moulding for an automotive seal, but the same principle can be applied to other moulded corner pieces, in the automotive field and in other fields.
The present invention also provides a method of forming the corner moulding.
In motor vehicles a seal is usually present in the vicinity of the A-, B- and C-posts, and another seal, which can be but need not be identical to that adjacent the A-, B- or C-post, is provided on the top rail. To provide the necessary sealing function, the seal on the A-, B- or C-post and the seal on the top rail can be provided with a hollow zone, for example having a cross-section in the form of a D. In most vehicles the A-, B- or C-post seal and the top rail seal, each of which generally extends rectilinearly, do not meet at a neat chamfer at a corner. Instead the post seal stops slightly short at the corner, as does also the top rail seal, there being provided a corner piece having the suitable shape and other characteristics for the relevant corner, with one end of the post seal being attached to one region of the corner piece, and with one end of the top rail seal being attached to another region of the corner piece.
Difficulties are encountered in practice where the seals have a hollow zone, as it is obviously desirable to provide an equivalent effect in the region of the corner piece.
To this end, one end region of the A-, B- or Cpost seal is located such that it projects slightly into a mould cavity, and one end region of the top rail seal is also held such that it projects slightly into the same mould cavity, the two seals being held in the suitable disposition taking into account the desired characteristics in the finished product. In order that the corner piece should have a hollow zone comparable to that in the A-, B- or C-post seal and that in the top rail seal there is located in the mould cavity an arcuate metal member which can be part of the mould or a separate piece. Then a suitable thermoplastic and/or elastomeric material is injected into the mould cavity to fill the remainder of the cavity. After suitable curing, the mould is opened and the resulting seal consisting of the A-, B- or C-post seal, the corner piece and the top rail seal, is removed from the mould.
Then, in that face of the seal which will not be visible in practice a slit is provided and through this slit the arcuate metal member is removed (if separate).
The edges of the moulded material which define the slit are then secured to each other by means of a suitable adhesive agent; by this means, the resulting product has a hollow zone extending through the post seal, the corner piece and the top rail seal.
The provision of the arcuate metal member, the provision of the slit, the removal of that metal member or the removal of the moulding from that metal member, and the closure of the slit are inevitably are timeconsuming and labour-intensive operations and, as such, are disadvantageous.
According to one aspect of the present invention, there is provided a method of joining a first extruded component in relation to a second extruded component in a non-rectilinear relationship by moulding a corner piece, which comprises: inserting one end region of the first extruded component having a hollow zone into a mould having a plurality of members; inserting one end region of the second extruded component having a hollow zone into the mould, with the first and second extruded components correctly disposed with respect to each other and spaced from each other; and closing the mould and injecting a suitable elastomeric or other thermoplastic material into the mould cavity so as to extend between, and to adhere to, the one end regions of the first and second extruded components, thereby forming a corner piece; wherein at least one of the members of the mould has a plurality of spaced-apart protuberances intended in use to lie along a line in the corner piece being moulded, corresponding to the hollow regions in the first and second extruded components, such that the resulting product has a plurality of hollow zones lying along that line.
Inevitably, with the protuberances projecting from at least one member of the mould the hollow zones in the region of the corner piece will not be closed hollow zones, and thus they will not be entirely like the hollow zones in the first and second extruded components, but there will be the equivalent of ribs provided along the length of the corner piece, the ribs separating the hollow zones from each other and providing some structural strength to the product in the region of the corner piece.
The open hollow zones in the corner piece can differ in shape and size from each other, according to the desired structural strength and other characteristics required for the corner piece.
According to another aspect of the present invention, there is provided a sealing member comprising: a first extruded component having a hollow zone, a second extruded component having a hollow zone and being inclined to, and spaced from, the first extruded component, and a corner piece, one region of the corner piece being secured to one end region of the first extruded component and another region of the corner piece being secured to one end region of the second extruded component, the corner piece having a plurality of hollow zones which lie along an arcuate line running from the line of the hollow zone in the first extruded component to that of the hollow zone in the second extruded component.
The hollow zones in the corner piece can be spaced apart by ribs which can be, but need not be, as deep as the hollow zones.
Any convenient material can be used to form the corner piece by injection moulding, for example an ethylene propylene diene monomer. The first and second extruded components are typically, but not exclusively, formed by extrusion.
For a better understanding of the present invention, and to show how the same may be carried into effect, reference will now be made, by way of example, to the accompanying drawings in which: Figure 1 is a cross-sectional view of a first moulded component in the form of an A-post seal attached to a flange; Figure 2 is a plan view of a sealing member having an arcuate corner piece attached to different end regions of which are portions of an A-post seal and a top rail seal; Figure 3 is a view from the under side of the sealing member of Figure 2 when produced in accordance with a known arrangement which involves the incorporation in the mould of arcuate metal member whidh is removed from the moulded product through a slit in the moulded product; Figure 4 is an under side view of one embodiment of a sealing member produced in accordance with the present invention, provided with a plurality of open hollow zones in the corner piece; and Figure 5 is a perspective view towards the underside of another embodiment of sealing member in accordance with the present invention.
Referring first to the known arrangement illustrated in Figures 1 to 3, Figure 1 shows a typical seal 1 for, for instance, an A-post seal which has a flange finisher component 2 secured to a car body flange 3. Projecting from one part of the flange finisher component 2 is a flexible limb 4 and projecting from another part of the flange finisher component 2 is another sealing component 5 which has a flat rear wall 6 and an arcuate front wall 7 joined at spaced apart regions at the flat wall 6 so as to define a D-shaped hollow zone 8.
In Figure 2 the A-post seal 1 is shown and also shown is a top rail seal 9 which can be identical to the A-post seal 1. Interposed between the A-post seal 1 and the top rail seal 9 is a corner piece 10 which is generally arcuate and which is joined at one end region 11 to an end of the A-post seal 1 and at another end region 12 to one end of the top rail seal 9. The arrangement shown in Figure 2 is shown from the reverse side in Figure 3 where it can be seen that there is a large slit 13 provided in the flat wall 6, through which slit during the manufacture of the finished product the arcuate metal member (not shown, but referred to above) used to form an arcuate hollow zone within the corner piece, is removed. After removal of that metal member the adjacent regions defining the slit can be secured to each other.
Turning now to the arrangement in accordance with the present invention, as shown in Figures 4 and 5 of the drawings, it will be appreciated that the product as shown in Figure 4, which shows the under side, can appear identical from the opposite side (i.e. the top side) to the top side view of the sealing member shown in Figure 2. Indeed, it is desirable that this should be the case. However, in the under side view shown in Figure 4 of the sealing member in accordance with the present invention, instead of there being a single slit (as in Figure 3) which can be sealed, there is a plurality of open hollow regions 21 to 27 inclusive spaced from each other by ribs 28 to 33 inclusive.
Opposite end regions of the arcuate corner piece 10A shown in Figure 4 are secured, as a result of the moulding operation, to adjacent end regions of the Apost seal 1A and top rail seal 9A equivalent to the Apost seal 1 and top rail seal 9 shown in Figure 2.
Figure 5 is a perspective view of a slightly modified version of the sealing member shown in Figure 4. This modified version lacks a groove for receiving a flange,- as often the flange is omitted in the region of a corner.
Obviously the size and spacing and shape of the hollow zones opening on to the rear face of the corner piece as shown in Figure 4 or Figure 5 can be varied significantly according to desired characteristics, an the same applies to the ribs between the hollow zones.
The present invention provides certain advantages, in fact it allows the use of a two-part mould, the provision of an improved surface appearance, a reduced number of operating steps, and the avoidance of the use of the adhesive.
Obviously the protuberances on the mould member oz mould members have the appropriate shape, size and spacing to create the desired hollow zones in the region of the corner piece.

Claims (5)

1. A method of joining a first extruded component in relation to a second extruded component in a non-rectilinear relationship by moulding a corner piece, which comprises: inserting one end region of the first extruded component having a hollow zone into a mould having a plurality of members; inserting one end region of the second extruded component having a hollow zone into the mould, with the first and second moulded components correctly disposed with respect to each other and spaced from each other; and closing the mould and injecting a suitable elastomeric or other thermoplastic material into the mould cavity so as to extend between, and to adhere to, the one end regions of the first and second extruded components, thereby forming a corner piece; wherein at least one of the members of the mould has a plurality of spaced-apart protuberances intended in use to lie along a line in the corner piece being moulded, corresponding to the hollow regions in the first and second extruded components, such that the resulting product has a plurality of hollow zones lying along that line.
2. A sealing member comprising: a first extruded component having a hollow zone, a second extruded component having a hollow zone and being inclined to, and spaced from, the first moulded component, and a corner piece, one region of the corner piece being secured to one end region of the first extruded component and another region of the corner piece being secured to one end region of the second extruded component, the corner piece having a plurality of hollow zones which lie along an arcuate line running from the line of the hollow zone in the first extruded component to that of the hollow zone in the second extruded component.
3. A sealing member according to claim 2, wherein the hollow zones are spaced apart by ribs which are optionally as deep as the hollow zones.
4. A sealing member according to claim 2 or 3, wherein the corner piece is formed by injection moulding an ethylene propylene diene monomer.
5. A sealing member according to claim 2, substantially as hereinbefore described with reference to, and as illustrated in, Figure 4 or Figure 5 of the accompanying drawings.
GB9719390A 1997-09-11 1997-09-11 A sealing member Withdrawn GB2329143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9719390A GB2329143A (en) 1997-09-11 1997-09-11 A sealing member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9719390A GB2329143A (en) 1997-09-11 1997-09-11 A sealing member

Publications (2)

Publication Number Publication Date
GB9719390D0 GB9719390D0 (en) 1997-11-12
GB2329143A true GB2329143A (en) 1999-03-17

Family

ID=10818949

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9719390A Withdrawn GB2329143A (en) 1997-09-11 1997-09-11 A sealing member

Country Status (1)

Country Link
GB (1) GB2329143A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363816A (en) * 2000-04-27 2002-01-09 Toyoda Gosei Kk Vehicle weather strip with narrow corner mounting
GB2370064A (en) * 2000-08-23 2002-06-19 Toyoda Gosei Company Ltd Moulded run for vehicle glass
US7175797B2 (en) 2003-06-10 2007-02-13 Toyoda Gosei Co., Ltd Method of manufacturing weather strip
CN109624673A (en) * 2018-12-28 2019-04-16 萨固密（中国）投资有限公司 A kind of sealing strip connects angle and its Shooting Technique
US10336169B2 (en) * 2017-07-31 2019-07-02 Toyoda Gosei Co., Ltd. Door weather strip

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769947A (en) * 1986-02-21 1988-09-13 Toyoda Gosei Co., Ltd. Weather strip for automobile
US4977706A (en) * 1988-07-29 1990-12-18 Toyoda Gosei Co., Ltd. Weather strip
US5407628A (en) * 1990-02-28 1995-04-18 Toyoda Gosei Co., Ltd Method of forming a molded portion of a weather strip

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769947A (en) * 1986-02-21 1988-09-13 Toyoda Gosei Co., Ltd. Weather strip for automobile
US4977706A (en) * 1988-07-29 1990-12-18 Toyoda Gosei Co., Ltd. Weather strip
US5407628A (en) * 1990-02-28 1995-04-18 Toyoda Gosei Co., Ltd Method of forming a molded portion of a weather strip

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2363816A (en) * 2000-04-27 2002-01-09 Toyoda Gosei Kk Vehicle weather strip with narrow corner mounting
GB2363816B (en) * 2000-04-27 2002-08-28 Toyoda Gosei Company Ltd Weather strip
US6598347B2 (en) 2000-04-27 2003-07-29 Toyoda Gosei Co., Ltd. Weather strip
GB2370064A (en) * 2000-08-23 2002-06-19 Toyoda Gosei Company Ltd Moulded run for vehicle glass
GB2370064B (en) * 2000-08-23 2002-11-27 Toyoda Gosei Company Ltd Vehicle glass run and method of manufacturing the same
US6723414B2 (en) 2000-08-23 2004-04-20 Toyoda Gosei Co., Ltd. Vehicle glass run and method of manufacturing the same
US6964133B2 (en) 2000-08-23 2005-11-15 Toyoda Gosei Co., Ltd. Vehicle glass run having molded corner parts with varying cross sections
US7175797B2 (en) 2003-06-10 2007-02-13 Toyoda Gosei Co., Ltd Method of manufacturing weather strip
US7306839B2 (en) 2003-06-10 2007-12-11 Toyoda Gosei Co., Ltd. Molded weather strip
CN1572461B (en) * 2003-06-10 2010-04-28 丰田合成株式会社 Weather strip, method of manufacturing the same, and mold used in the same method
US10336169B2 (en) * 2017-07-31 2019-07-02 Toyoda Gosei Co., Ltd. Door weather strip
CN109624673A (en) * 2018-12-28 2019-04-16 萨固密（中国）投资有限公司 A kind of sealing strip connects angle and its Shooting Technique

Also Published As

Publication number Publication date
GB9719390D0 (en) 1997-11-12

Similar Documents

Publication Publication Date Title
JPH0736845Y2 (en) Automotive weather strip connection structure
JP4029603B2 (en) Weather strip
US5622008A (en) Weatherstrip with uncured foot
US5258157A (en) Method for joining extruded weather strips and resulting weather strip for motor vehicle
CA1157897A (en) Window structure of a vehicle body
US5336460A (en) Process for making molded-in lamina hinge
US6375878B1 (en) Foam shut-off method
CZ400198A3 (en) Module of embedded solid window for motor vehicle and process for producing thereof
US20030090035A1 (en) Method of molding a panel
US5972268A (en) Method of forming a corner part of a weather strip
US5433808A (en) Production method for a hollow extrudate
WO1996025282A1 (en) Process for producing a plastic cladding component and cladding component produced especially by said process
EP1002703A1 (en) Panel for air bags and method of manufacturing the same
GB2329143A (en) A sealing member
US5762852A (en) Process for making molded-in lamina hinge
JP3226717B2 (en) How to attach the trim member to the panel flange
JP3796398B2 (en) Weather strip for automobile and its manufacturing method
CN216968460U (en) Decorative panel for motor vehicle and motor vehicle comprising same
JP4964563B2 (en) Automobile door seal structure
KR920005971Y1 (en) Window molding for a vehicle
EP0885778B1 (en) Sealing corner
JP2008049603A (en) Method for manufacturing molded article
US20180311873A1 (en) Hybrid panel and mold therefor
JP2010030571A (en) Extrusion molded product with core material for automobile
JPH032015A (en) Procuction of flap for aeration

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)