CA1147770A - Grippable sliding seal strip - Google Patents

Grippable sliding seal strip

Info

Publication number
CA1147770A
CA1147770A CA000370999A CA370999A CA1147770A CA 1147770 A CA1147770 A CA 1147770A CA 000370999 A CA000370999 A CA 000370999A CA 370999 A CA370999 A CA 370999A CA 1147770 A CA1147770 A CA 1147770A
Authority
CA
Canada
Prior art keywords
seal
pile
door
strip
secured
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
CA000370999A
Other languages
French (fr)
Inventor
Philip R. Landreth
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.)
Schlegel Corp
Original Assignee
Schlegel Corp
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 Schlegel Corp filed Critical Schlegel Corp
Application granted granted Critical
Publication of CA1147770A publication Critical patent/CA1147770A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00Special arrangements or measures in connection with doors or windows
    • E06B7/16Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00Special arrangements or measures in connection with doors or windows
    • E06B7/16Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23Plastic, sponge rubber, or like strips or tubes
    • E06B7/2305Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging
    • E06B7/2312Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with two or more sealing-lines or -planes between the wing and part co-operating with the wing
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00Special arrangements or measures in connection with doors or windows
    • E06B7/16Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23Plastic, sponge rubber, or like strips or tubes
    • E06B7/2314Plastic, sponge rubber, or like strips or tubes characterised by the material

Abstract

GRIPPABLE SLIDING SEAL STRIP

Abstract of the Disclosure A channel-shaped gripping element and a pile seal member are secured together to provide a grippable sliding seal strip. The gripping element is secured to a flange of a fixed member, and the pile seal member slidably engages the surface of a moving member. A
flexible link member is interposed between the gripping element and pile seal member. A guard arm is provided on one of the gripping elements and pile seal members for preventing penetration of the pile by flying foreign objects.

Description

1:147~

GRIPPABLE SLIDING SEAL STRIP

BACKGROUND OF THE INVENTION
~ield of the Invention The present invention relates generally to seals, and more particularly to sliding seals of the type ~hereln sliding motion between the seal and another member occurs. The slidlng seal of this invention comprises a plle ~eal member secured to a channel-shaped gripping element. A protectlve arm-guard extends from one of the pile seal members or gripplng elements to prevent penetratlon of the plle by foreign material such as stones or the like.
Description of the Prior Art U.S. Patent No. 3,175,256 relates to a weather-seal having a base strip and two longitudinally extending parallel spaced rows of pile attached to the base strlp.
An impervious fin of thermoplastlc material is secured on edge to the base strip ln the space between the rows o~ plle.
U.S. Patent No. 3,198,689 discloses a weatherseal mountable on a flange around a door or window opening in a motor vehicle body to prevent water and air leakage into the body. The weatherseal comprises a channel member having gripping means by which the seal ls mounted Gn the flange. The gr~pplng means comprlses gripping rib8 extendlng longltudlnally along the inside sur~ace of the channel member, proJectlng toward each other from the opposlte slde walls thereof. Al~hough only one rlb is shown on each side wall, it is known ln the art to provlde more than one, if desired.
3 U.S. Patent No. 4,114,320 dlscloses a door seal having a channel-shaped grlpplng element, and a tubular seal secured to a portlon of the outer surface of the channel-shaped element.

~147~;70 It is further known in the prior art to provide a longitudinally extending deformable seal such as a rubber gasket or the like for sealing a swingable refrigerator door. The seal is secured to the door frame by any suitable means, and is sealingly engaged by a surface of the door when it is swung to its closed position.
Although the deformable seal provides an adequate seal for swingable doors, it is unsatisfactory for roll-up type overhead doors in refrigerated trucks, trailers or box cars. One of the problems is that the sliding motion between the deformed or compressed seal and the door surface results in abrasion which is potentially damaging to the seal and door. Seal damage can result in air leakage. This, in turn, can increase the work load on the refrigerator system and its cost of operation. In addition, possible damage to the refrigerated perishable product can result, particularly if the refrigeration system breaks down.
Leaf seals are also known in the art for sealing the space between the surface of a roll-up door and the door frame. One problem with this type of seal, in addition to the abrasion problem noted above, is that the unevenness or irregularities in the roll-up door surface prevents securing a good seal. Another problem is that the leaf seal is orientcd to offer more resistance to inward air flow than outward resulting in possible loss of refrigerated air outwardly through the seal.
SUMMARY OF THE INVENTION
An aspect of the invention is as follows:
~ seal strip for sealing the space between a fixed frame and a sliding member comprising:
an elongated channel-shaped element adapted to be secured to the fixed frame;
a base strip;
a longitudinally extending row of pile having one surface thereof secured to one side of said base .

~47770 strip and the opposite free surface of said pile adapted to slidably engage the sliding member;
a flexible tubular member connecting the opposite side of said base strip to a portion of the outer surface of said channel-shaped element; and a guard arm integral with and extending from said tubular member toward the sliding member for preventing foreign material from penetrating said pile.
In more specific aspects of the invention, the guard arm is flexible, and comprises the free end of one of the side walls of the channel-shaped element. The guard arm can also comprise the free edge of the base strip, or an arm integral with and extending from the tubular member.
The primary advantage of the aforementioned aspects of the invention is to solve the aforementioned problems of prior art seals interposed between fixed and sliding members. Such problems include, for example, inadequate sealing and extensive abrasion damage of the seal strip and sliding member.
The invention and its advantages will become more apparent from the detailed description of the invention presented below.
BRIEF DESCRIPTION OF THE DRAWINGS
The details of this invention will be described in connection with the accompanying drawings, in which:
Fig. 1 is a front elevational view of a fixed structure supporting a sliding member shown as a roll-up overhead door;

1147~70 Fig. 2 is an enlarged segmental view taken substantially along line 2-2 of Fig. l;
Fig. 3 is an enlarged view in section of the seal strip illustrated in Fig. 2; and 5Flgs. 4, 5, 6 and 7 are views similar to Fig. 3 of other embodiments of the seal strip of this lnvention.
DETAILED DESCRIPTION OF THE INVENTION
Referrlng to Flg. 1 of the drawings, a flxed structure 10 such as a garage or the body of a refrig-eration car, truck or trailer ls disclosed having a door frame 12 for supporting a sliding member such as a roll-up or overhead door 14. The door ~s of the conventional type comprlslng a plurality of parallel, hinged panels, not shown, which allow the door to be vertically oriented, when closed, and substantlally horlzontally oriented, when opened.
With reference to Fig. 2, and as is wel' known ln the art, door 14 is further provided along each side edge with a plurallty of spaced housings 16, only one of which 20 is shown, each adapted to plvotally support a shaft 18.
A trlangular-shaped link plate 20 is secured along one side of the link to one end of each shaft 18, and a laterally extending stub shaft 22 secured to each lln~ opposite tne one side rotatably supports a roller 24 on roller-bearings, 25 not shown. The rollers are rotatably captured within elongated, chute-like roller guides 26 arranged in a sub~tantially inverted L-shaped orlentation. Each roller gulde 26 ls mounted on one end o~ a plate 28 of L-shaped cross-section secured to door frame 12 along each side of 30 the door. The opposlte end or flange 30 of plate 28 supports a seal str~p 32, to be described more fully with reference to Fig. 3.
Referring to Fig. 3, seal strlp 32 comprlses an elongated channel-shaped grlpplng element 34 essentially 35 of the type disclosed and descrlbed in U.S. Patent No. ;
3,198,689. The channel-shaped element 34 has a wire ~7 7'~

carrier 36 preferably covered by a flexible polymeric materlal. The wire carrier strengthens the element and improves its gripping power. The element has gripping ribs 38 formed from any suitable material running along and protruding from the inside surface of each wall of element 34. Gripping ribs 38 help to ensure that seal strip 32 is not inadvertentlv Pulled off the end of flange 30 once it ls mounted thereon.
An elongated plle seal member 40 essentially o~ the type dlsclosed and described ln U.S. Patent No.
3,175,256 has a base strip 42 of any suitable material secured to a portlon of the outer surface of channel-shaped element 34. The portion of the outer surface to which base strip 42 is secured depends upon the or~entation of ~lange 30 relative to outer door surface 44 (Fig. 2).
Plle seal member 40 comprises spaced rows of plle 46 secured at one end surface to the base strip,and the opposite ~ree end adapted to slidably engage outer door sur~ace 44. A moisture impervlous barrler fln 48 o~ any 20 sultable materlal ls mounted in the space between the rows of plle 46 with one end thereof preferably secured to base strip 42.
One edge of base strip 42 has an arm 50 trans-? verse to and extendin~ outwardly from the base strip toward 25 and preferably lnto engagement with outer door surface 44.
Arm 50 forms a guard-i~ front of pile 46 extending between ~lange 30 and outer door surface 44 to prevent foreign obJects such as dirt, oll, water or stones from penetratlng the plle and damaglng it. This ls particularly posslble 30 ln those appllcations where the seal strlp ls lncorporated on slidlng doors of fast movlng rerrlgeratlon vehlcles such as trucks. Arm 50 is pre~erably flexlble and o~ a length so that in its guard position as seen ln Flg. 2, the rounded free end 52 thereof bears against outer door 35 surface 44 with a predetermined pressure.

11477'~

With reference to the embodiments of seal strip 32 illustrated in Figs. 4-7, parts similar to parts shown and described ln Fig. 3 will be deslgnated by the same numerals.
Referring to the Fig. 4 embodiment of the lnvention, guard arm 50 is integral with and extends outwardly from one oP the side walls of channel-shaped element 34. In broken lines, pile seal member 40 is shown in an alternate posltlon for those seallng applications ln whlch plate flange 30 ls orlented substantlally perpendicular to the outslde door sur~ace 44.
In the embodlment of seal strlp 32 lllustrated ln Flg. 5, a support strip 54 of any sultable materlal is secured to an outer surface of channel-shaped element 34.
A flexlble substantially Y-shaped link member 56 preférably formed from any suitable polymeric material has one leg 58 connected to support strip, another leg 60 connected to base strlp for supporting pile, and the last leg extendlng ln front of pile 46 to form guard arm 50. Support strip 54 and llnk member 56 may be extruded as one plece. Llnk member 56 is further oriented at an angle to outslde door surface 44 so that in operation pile seal member 40, leg 60 and arm 50 are flexed for applying seallng pressure against door 14. Llnk member 56 further serves to deflect in operatlon to compensate for wlde tolerances developed over the functional lir~e Qf the seal and door.
With reference to Fig. 6, ~lexible link member 56' is tubular, and of a substantially right-triangular cross-section. In Flg. 7, link member 56" ls also tubular, but of a substantially oblong cross-section. In Fig. 7, guard arm 50 is integral with and extends outwardly from the link member.

~1477 70 Existing door frames on trailers, truc~s or the like are provided with vertically extending flanges for, among other things,supporting known leaf type seals. Such door frames may be readily retrofitted with the new grippable sliding seal strip of this invention which re-quires no fastening means to the existing door frame. The new sliding seal can further be readily replaced when worn out. To provide a continuous seal at the top of the door, a horizontal framing member may be added to the door frame by screws or the like for supportlng a flange lnterposed between the existing vertical flanges. A bulb type æeal may be added to the bottom Or the door to provide a fully sealed roll-up door sealed on the top, bottom and each side thereof .
While presently preferred embodlments of the invention have been shown and described with particularlty, it will be appreciated that various changes and modifl-cations may suggest themselves to one havlng ordinary sklll ln the art upon belng apprlsed of the present lnventlon. It 20 18 lntended to encompass all such changes and~modi-ffcatlons as fall wlthin the scope and spirlt Or the appended claimæ.

Claims (3)

CLAIMS:
1. A seal strip for sealing the space between a fixed frame and a sliding member comprising:
an elongated channel-shaped element adapted to be secured to the fixed frame;
a base strip;
a longitudinally extending row of pile having one surface thereof secured to one side of said base strip and the opposite free surface of said pile adapted to slidably engage the sliding member;
a flexible tubular member connecting the opposite side of said base strip to a portion of the outer surface of said channel-shaped element; and a guard arm integral with and extending from said tubular member toward the sliding member for preventing foreign material from penetrating said pile.
2. A seal strip according to claim 1 wherein said tubular member has a substantially rectangular cross section.
3. A seal strip according to claim 1 wherein said tubular member has a substantially right-triangular cross section.
CA000370999A 1980-02-27 1981-02-16 Grippable sliding seal strip Expired CA1147770A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/125,196 US4318249A (en) 1980-02-27 1980-02-27 Grippable sliding seal strip
US125,196 1980-02-27

Publications (1)

Publication Number Publication Date
CA1147770A true CA1147770A (en) 1983-06-07

Family

ID=22418613

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000370999A Expired CA1147770A (en) 1980-02-27 1981-02-16 Grippable sliding seal strip

Country Status (2)

Country Link
US (1) US4318249A (en)
CA (1) CA1147770A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2163470A (en) * 1984-08-23 1986-02-26 Silent Channel Prod Ltd Sealing strip
FR2636572B1 (en) * 1988-08-25 1993-11-12 Hutchinson WATERPROOFING PROFILE OF MOBILE ICE, ESPECIALLY ICE OR WINDOW OF AUTOMOBILE
US4976068A (en) * 1989-10-19 1990-12-11 The Standard Products Company Repositioning device for a weather seal
DE4105660A1 (en) * 1991-02-22 1992-08-27 Voll Karosseriefab GASKET ARRANGEMENT BETWEEN TWO PIVOTING DOOR WINGS IN COOLING DEVICES, IN PARTICULAR REFRIGERATORS
US5618593A (en) * 1991-05-08 1997-04-08 The Standard Products Company Weatherstrip molding and method of making same
GB2396164A (en) * 2002-12-12 2004-06-16 Condale Plastics Ltd Edging profile for trimming the edges of stud walls
US7883594B2 (en) * 2003-10-15 2011-02-08 Ultrafab, Inc. Wrapped pile weatherstripping and methods of making same
JP5229694B2 (en) * 2009-09-29 2013-07-03 豊田合成株式会社 Weather strip
US20190010753A1 (en) * 2017-07-06 2019-01-10 Veka Inc. Recyclable weatherstrip sashes and frames for polyvinyl chloride windows and doors
WO2023144123A1 (en) * 2022-01-25 2023-08-03 Assa Abloy Entrance Systems Ab Side sealing

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2968072A (en) * 1951-07-18 1961-01-17 Bright Thomas John Robert Draught excluding strips, beadings, mouldings or the like
US2664602A (en) * 1951-08-13 1954-01-05 Bright Thomas John Robert Draught excluding strip
US2974383A (en) * 1955-09-16 1961-03-14 Bright Thomas John Robert Clips or tags and draught-excluding strips, beadings, mouldings or the like for use therewith
US2913783A (en) * 1956-10-01 1959-11-24 Bright Thomas John Robert Window seals
US3175256A (en) * 1962-03-21 1965-03-30 Schlegel Mfg Co Weather strip
US3359688A (en) * 1965-06-11 1967-12-26 Schlegel Mfg Co Window glass engaging device
US3742649A (en) * 1970-04-14 1973-07-03 Draftex Gmbh Support for decorative moldings on door or window frames provided with rubber or plastic sealstrips
GB1535715A (en) * 1974-11-20 1978-12-13 Draftex Dev Ag Flexible sealing strips
GB1563016A (en) * 1976-08-31 1980-03-19 Schlegel Uk Ltd Door seals
US4143497A (en) * 1977-07-29 1979-03-13 General Motors Corporation Weatherstrip sealing arrangement

Also Published As

Publication number Publication date
US4318249A (en) 1982-03-09

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