US3833045A - Side coiling door - Google Patents

Side coiling door Download PDF

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Publication number
US3833045A
US3833045A US00307338A US30733872A US3833045A US 3833045 A US3833045 A US 3833045A US 00307338 A US00307338 A US 00307338A US 30733872 A US30733872 A US 30733872A US 3833045 A US3833045 A US 3833045A
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United States
Prior art keywords
track
door
cable
opening
relation
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Expired - Lifetime
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US00307338A
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B Sivin
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NORTH AMERICAN W-D DOOR Inc A CORP OF OH
Celotex Corp
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Celotex Corp
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Assigned to NORTH AMERICAN W-D DOOR INC., A CORP. OF OH reassignment NORTH AMERICAN W-D DOOR INC., A CORP. OF OH ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CELOTEX CORPORATION THE A DE CORP.
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    • 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
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08Roll-type closures

Abstract

The cable for pulling a side coiling door through closing movement along its upper track is held in offset relation to the vertical plane of the door so that any sag in the cable comes to rest along a horizontally oriented track surface rather than hanging down below said track and causing snagging, adversely detracting from the appearance of the door, or resulting in other shortcomings.

Description

United States Patent 1 1111 3,833,045 Sivin 1 Sept. 3, 1974 [54] SIDE COILING DOOR 3,729,044 4/1973 Gerkin 160/193 [75] Inventor: Bernard J. Sivin, Commack, NY. FOREIGN PATENTS OR APPLICATIONS 3 Assigneez The Celotex Corp" Tampa, 849,818 9/1960 Great Britain 160/346 [22] Filed: 1972 Primary Examiner-Peter M. Caun [21] Appl. 7 3 Attorney, Agent, or Firm-James W. Grace 52 US. Cl 160/133, 160/26, 160/193 [57] S Q [51 1m. (:1 E0611 9/08 Cable for Pullmg 3 Me collmg door through @108- [58] n w of Search 160/23, 25, 26 133, 126 ing movement along its upper track is held in offset 160/345, 346, 347, 193, 196, 196 1) relation to the vertical plane of the door so that any sag in the cable comes to rest along a horizontally ori- [56] References Cited ented track surface rather than hanging down below UNITED STATES PATENTS said track and causing snagging, adversely detracting from the appearance of the door, or resulting in other 1,621,717 3/1927 Grant et a1 160/26 Shortcomings. 3,098,520 7/1963 Greenstadt et al. 160/346 3,504,728 4/1970 Wardlaw 160/26 1 Claim, 4 Drawing Figures SIDE COILING DOOR The present invention relates to side coiling doors, and more particularly to cable-control improvements that enhance the appearance and functioning of side coiling doors.
The motor operator of a typical side coiling door, even if arranged to continually exert tension on the cable which pulls the door closed, is still often ineffective in preventing sagging in this cable, i.e., in preventing said cable from assuming a catenary curve due to its weight and unsupported spanning relation across the top of the door opening. This cable sag invariably is of an extent which results in a cable loop projecting down through the upper track opening into the door opening, thereby detracting from the appearance of the door and presenting a possible snagging hazard to traffic passing through the door opening. There has been little effort to eliminate this problem, and the approach, in any event, has been eliminate cable sag by increasing the cable tension, which has not been completely effective.
Broadly, it is an object of the present invention to provide a side coiling door overcoming the foregoing and other shortcomings of the prior art. Specifically, it is not an object to eliminate sagging in the cable, but rather to minimize whatever sag that does occur from having any adverse consequences.
An improved side coiling door demonstrating objects and advantages of the present invention includes an offset or inclined angular orientation in its two points of engagement between which the cable exists in its spanning condition across the door opening. Thus, the cable extends above one of the horizontally oriented tracking surfaces of the door upper track, so that when it sags from this clearance position, it comes to rest on said surface rather than hanging below the track and into the door opening.
The above brief description, as well as further objeets, features and advantages of the present invention, will be more fully appreciated by reference to the following detailed description of a presently preferred, but nonethless illustrative embodiment in accordance with the present invention, when taken in conjunction with the accompanying drawings, wherein:
FIG. 1 is a simplified front elevational view of a typical side coiling door having the improved cable-control means hereof;
FIG. 2 is a side elevational view, in section taken on line 2-2 of FIG. 1, showing structural details of said cable-control means;
FIG. 3 is also a side elevational view as seen along line 3-3 of FIG. 1 showing further structural details; and
FIG. 4 is a perspective view showing further details of the cable-control means.
Reference is now made to the drawings in which there is illustrated a typical installation of a side coiling door, generally designated 10. As generally understood, door 10, which typically has a hinged arrangement of slats 12, is operatively arranged on a vertically oriented support drum 14 so as to partake of opening and closing movements relative to a door opening 16 in a building construction 18. Ina typical installation, as exemplified by the installation illustrated in FIG. I, the door is powered through its opening and closing movements by a motor 20 which drives a drive shaft 22 via a pulley belt arrangement 24.
A simplified description of the door drive, which is sufiicient for present purposes, follows. The same contemplates that clockwise rotation 26 be transmitted by motor 20 via pulley belt 24 to produce drive direction rotation 28 in a pulley and clutch arrangement 30, the slip direction thereof being designated 32. Thus, rotation of the arrangement 30 is transmitted via the pulley belt 34 to pulley 36 and thus to a cable drum 38 mounted on a common shaft with the pulley 36. Clockwise rotation of drum 38 produces wind-up of upper and lower cables 40 and 42, respectively, thereon, and this in turn, results in closing movement 44 of drum 10 relative to the opening 16 since the cables 40 and 42 are connected adjacent the front edge of the door 10, as at 46 and 48.
In response to the counterclockwise rotation 50 of motor 20, drive rotation 52 is produced in the pulley and clutch arrangement 54, the slip direction thereof being that designated 53. Rotation 52 is tansmitted via pulley belt 56 to another pulley 58 and results in the windup rotation of the door drum l4 simultaneously with unwinding of the cables 40 and 42 from the cable drum 38. When door 10 is in its fuly open position, upper cable 40 naturally has a spanning position across the door opening 16, as illustrated in FIG. 1. In this condition, there is a tendency in cable 40, which if not resisted, of the cable to sag under its own weight. Sagging could also result from excessive slack in the length portion of the cable between its door connection 46 and its portion wound on the drum 38. Further, if the sagging cable 40 is permitted to project through the upper track opening of the door 10 and thus into view, it is unsightly and also represents a potential snagging hazard for equipment or the like which is transported through the door opening 16.
It is a significant object of the present invention to provide means to minimize, and for all practical purposes to totally eliminate, the sagging of the upper cable 40 out of the upper door tracking structure. In this regard, it should be understood that such upper door tracking structure, generally designated 60, typically includes a Ushaped or other such shaped structural member 62 mounted in spanning relation on the building 18 across the door opening 16 thereof, as illustrated in FIG. 2. Thus, the member or housing 62 bounds a tracking channel 64 for the door and appropriately mounted therein, as by welding or the like, is a bifurcated track construction 66, the two legs 68 and 70 of which are in facing relation to each other. The legs have laterally or horizontally oriented rails or tracks and, more particularly, tracking surfaces 72 and 74 along which the door I0 tracks during its opening and closing movements.
As best illustrated in FIG. 4, the construction of the door 10 includes a front edge panel 76 in front of the hingedly connected door slats l2. Along the top of the panel and slats is a flexible band 78 to which the same are connected in depending relation by spaced rivets 80. Adjaent the top edge of the band 78 are horizoni tally oriented axle constructions 82 at spaced intervals along the top edge of the door (see FIG. 1), only one of which is shown in FIG. 4. Joumalled for rotation at the opposite ends of the axles 82 are a cooperating pair of rollers 84 and 86 which, as shown in FIG. 2, track along the track surfaces 72 and 74 while the depending band 78 extends through a track opening 88 defined between the laterally oriented legs of each of the vertical track legs 68, 70. V
In accordance with the present invention, upper cable 40 is connected at a point above the front edge panel 76, as at 90. This connection is preferrably achieved with a bracket 92, the bottom end 94 of which is connected by rivets 96 to the band 78, and immediately above such connection there is an angularly oriented bracket media portion 98 which has the effect of locating the free end of bracket 92 in a clearance position above the track surface 92. This bracket free end is preferrably a cylindrical body 100 which receives through a central opening an end of cable 40 which after placement-therethrough is prevented from being pulled from the body 100 by an end clamp 102 thereon.
Cooperating with the offset cable bracket 92 is a pulley 104, said pulley being located at the end of the door opening 16. Pulley 104 is joumalled for rotation in any appropriate manner, as by being rotatably disposed on an axle 106 which is bolted, as at 108, in a transverse or horizontal orientation relative to the track surfaces 72 and 74 and which also is in an elevated relation thereto. Specifically, a spacing cylinder 110 is disposed between the pulley 104 and the right track leg 70 so that pulley 104 is located immediately above track surface 72, the same surface that the cable-holding cylinder 100 is located above. Thus, as clearly illustrated in FIG. 4, the spanning portion of the cable 40 between the connection 90 to the door and the partial cable wrap about the pulley 104 is effective in locating said spanning cable length immediately above the track surface 72. As a consequence, if there is any sag in the cable 40, as llustrated in phantom perspective in FIGS.
3 and 4, such sagging cable will come to rest on the track surface 72. Thus, the sagging cable does not project through the track opening 88 into view or into a position along the upper edge of the door opening 16 where it could possibly constitute a snagging hazard to anyone or any equipment passing through the door opening.
A latitude of modification, change and substitution is intended in the foregoing disclosure, and in some instances some features of the invention will be employed without a corresponding use of other features. Accordingly, it is appropriate that the appended claims be construed broadly and in a manner consistent with the spirit and scope of the invention herein.
What is claimed is:
1. A side coiling door including means defining a door opening, an upper track housing spanning said door opening adjacent the upper edge thereof bounding a tracking channel for said door, a pair of tracks having laterally oriented track surfaces mounted in spaced-apart facing relation in said tracking channel with a central track opening defined between said track surfaces thereof, door-supporting rollers operatively arranged to track along said tracks and having an operative connection extending through said track opening to said door arranged in depending relation therefrom, a cable connected to pull said door from its open position to a closed position in spanning relation across said door opening, cable control means to minimize any sagging of said spanning cable through said track opening comprising spaced cable-control means, said cablecontrol means including a cable pully, having an axis of rotation at a right angle with respect to the longitudinal axis of said central track opening located adjacent the closed end of said door opening within said track channel and offset laterally with respect to the longitudinal axis of said central track opening to be in a clearance position directly above one track surface of said pair of track surfaces, and a connection for securing said cable in pulling relation to said door and having its end connected to said cable, said connection supported at the free end on said door and extending upwardly therefrom through said track opening and including an angularly oriented leg extending from the vertical plane of said track opening over said one track surface, whereby any sag in said spannig cable is supported on said track surface rather than projecting through said track opening into view.

Claims (1)

1. A side coiling door including means defining a door opening, an upper track housing spanning said door opening adjacent the upper edge thereof bounding a tracking channel for said door, a pair of tracks having laterally oriented track surfaces mounted in spaced-apart facing relation in said tracking channel with a central track opening defined between said track surfaces thereof, door-supporting rollers operatively arranged to track along said tracks and having an operative connection extending through said track opening to said door arranged in depending relation therefrom, a cable connected to pull said door from its open position to a closed position in spanning relation across said door opening, cable control means to minimize any sagging of said spanning cable through said track opening comprising spaced cable-control means, said cable-control means including a cable pully, having an axis of rotation at a right angle with respect to the longitudinal axis of said central track opening located adjacent the closed end of said door opening within said track channel and offset laterally with respect to the longitudinal axis of said central track opening to be in a clearance position directly above one track surface of said pair of track surfaces, and a connection for securing said cable in pulling relation to said door and having its end connected to said cable, said connection supported at the free end on said door and extending upwardly therefrom through said track opening and including an angularly oriented leg extending from the vertical plane of said track opening over said one track surface, whereby any sag in said spannig cable is supported on said track surface rather than projecting through said track opening into view.
US00307338A 1972-11-17 1972-11-17 Side coiling door Expired - Lifetime US3833045A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988007618A1 (en) * 1987-03-26 1988-10-06 Efaflex Transport- Und Lagertechnik Gmbh Gate, in particular a motor-driven industrial gate
US5297782A (en) * 1991-10-10 1994-03-29 The Chamberlain Group, Inc. Modular snubber apparatus
GB2271383A (en) * 1992-10-07 1994-04-13 David Leslie Mansley Flexible roll-up door
US5860365A (en) * 1997-03-17 1999-01-19 The Chamberlain Group, Inc. Tensioning device for flexible drive member
EP1128019A2 (en) * 2000-02-23 2001-08-29 Wolfgang Birkholz Movable partition wall
WO2002054907A2 (en) * 2001-01-10 2002-07-18 Societa' Vetraria Biancadese S.A.S. Connection device for glass slats
US20070181270A1 (en) * 2005-10-26 2007-08-09 Inventio Ag Door System
US20070199771A1 (en) * 2005-10-21 2007-08-30 Inventio Ag Elevator Door System
US20080264574A1 (en) * 2006-10-25 2008-10-30 Spiess Peter A Door system
US10385600B2 (en) * 2016-05-11 2019-08-20 Contour Closures, Inc. Horizontal garage door assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1621717A (en) * 1925-08-29 1927-03-22 Acme Partition Company Coiling door
GB849818A (en) * 1955-10-20 1960-09-28 French & Sons Thomas Improvements in or relating to curtain suspension systems
US3098520A (en) * 1961-03-27 1963-07-23 Mfg Specialties Co Inc Drapery apparatus
US3504728A (en) * 1968-09-30 1970-04-07 Cookson Co Side coiling partition
US3729044A (en) * 1971-04-05 1973-04-24 American Standard Inc Curved track with plastic liner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1621717A (en) * 1925-08-29 1927-03-22 Acme Partition Company Coiling door
GB849818A (en) * 1955-10-20 1960-09-28 French & Sons Thomas Improvements in or relating to curtain suspension systems
US3098520A (en) * 1961-03-27 1963-07-23 Mfg Specialties Co Inc Drapery apparatus
US3504728A (en) * 1968-09-30 1970-04-07 Cookson Co Side coiling partition
US3729044A (en) * 1971-04-05 1973-04-24 American Standard Inc Curved track with plastic liner

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988007618A1 (en) * 1987-03-26 1988-10-06 Efaflex Transport- Und Lagertechnik Gmbh Gate, in particular a motor-driven industrial gate
DE3709884A1 (en) * 1987-03-26 1988-10-06 Efaflex Transport Lager GATE, ESPECIALLY MOTOR-DRIVEN INDUSTRIAL GATE
US5297782A (en) * 1991-10-10 1994-03-29 The Chamberlain Group, Inc. Modular snubber apparatus
GB2271383A (en) * 1992-10-07 1994-04-13 David Leslie Mansley Flexible roll-up door
GB2271383B (en) * 1992-10-07 1996-11-20 David Leslie Mansley Door arrangements
US5860365A (en) * 1997-03-17 1999-01-19 The Chamberlain Group, Inc. Tensioning device for flexible drive member
EP1128019A2 (en) * 2000-02-23 2001-08-29 Wolfgang Birkholz Movable partition wall
EP1128019A3 (en) * 2000-02-23 2003-01-08 Wolfgang Birkholz Movable partition wall
WO2002054907A3 (en) * 2001-01-10 2002-11-28 Vetraria Biancadese S A S Soc Connection device for glass slats
WO2002054907A2 (en) * 2001-01-10 2002-07-18 Societa' Vetraria Biancadese S.A.S. Connection device for glass slats
US20070199771A1 (en) * 2005-10-21 2007-08-30 Inventio Ag Elevator Door System
US7617860B2 (en) * 2005-10-21 2009-11-17 Inventio Ag Elevator door system
CN1958425B (en) * 2005-10-21 2010-04-21 因温特奥股份公司 Elevator door system
US20070181270A1 (en) * 2005-10-26 2007-08-09 Inventio Ag Door System
US20080264574A1 (en) * 2006-10-25 2008-10-30 Spiess Peter A Door system
US7810544B2 (en) * 2006-10-25 2010-10-12 Inventio Ag Door system
CN101168424B (en) * 2006-10-25 2011-08-03 因温特奥股份公司 Door system
US10385600B2 (en) * 2016-05-11 2019-08-20 Contour Closures, Inc. Horizontal garage door assembly

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AS Assignment

Owner name: NORTH AMERICAN W-D DOOR INC., A CORP. OF OH

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CELOTEX CORPORATION THE A DE CORP.;REEL/FRAME:004320/0904

Effective date: 19831101