US3568365A - Door assembly - Google Patents

Door assembly Download PDF

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Publication number
US3568365A
US3568365A US825220A US3568365DA US3568365A US 3568365 A US3568365 A US 3568365A US 825220 A US825220 A US 825220A US 3568365D A US3568365D A US 3568365DA US 3568365 A US3568365 A US 3568365A
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US
United States
Prior art keywords
door
tracks
opening
pair
closed position
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 - Lifetime
Application number
US825220A
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English (en)
Inventor
Paul E Pemberton
Gail L Thornburg
Donald S Harris
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.)
Overhead Door Corp
Original Assignee
Overhead Door 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 Overhead Door Corp filed Critical Overhead Door Corp
Application granted granted Critical
Publication of US3568365A publication Critical patent/US3568365A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/36—Suspension arrangements for wings moving along slide-ways so arranged that one guide-member of the wing moves in a direction substantially perpendicular to the movement of another guide member
    • E05D15/38—Suspension arrangements for wings moving along slide-ways so arranged that one guide-member of the wing moves in a direction substantially perpendicular to the movement of another guide member for upwardly-moving wings, e.g. up-and-over doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D15/00—Suspension arrangements for wings
    • E05D15/16—Suspension arrangements for wings for wings sliding vertically more or less in their own plane
    • E05D15/20—Suspension arrangements for wings for wings sliding vertically more or less in their own plane movable out of one plane into a second parallel plane
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

Definitions

  • This invention relates in general to an upwardly acting door assembly and, more particularly, to apparatus for supporting a one-piece door so that it is relatively easy to operate, but also capable of automatically moving into and remaining in a well-sealed, closed position.
  • a primary object of this invention has been the provision of apparatus adapted to support a one-piece, upwardly acting door for movement into and out of an upright position of substantially airtight engagement with wall means defining an opening covered by the door means in its closed position.
  • a further object of this invention is the provision of apparatus, as aforesaid, wherein the force tending to hold the door in a closed and sealed positionis furnished by gravity and wherein the door can be moved into and out of its closed position with relative ease even where the door is of a large size, thereby eliminating the need for an emergency exit where, for example, the door is used to close a refrigerator.
  • FIG. l is a broken, sectional viewof a door and doorsupporting apparatus embodying the invention, as viewed from the interior of the door and taken along the cutting line I-I in FIG. 2.
  • FIG. 2 is a sectional view taken along the line II-II in FIG. 1.
  • FIG. 3 is a sectional view taken along the line III-III in FIG. l.
  • FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1.
  • FIG. 5 is a fragmentary, sectional view substantially as taken along the line V-V in FIG. 2.
  • FIG. 6 is a sectional View taken along the line VI-VI in FIG. 2 and illustrating a modified construction.
  • FIG. 7 is a fragment of FIG. 2 showing a modified construction.
  • FIG. 8 is a broken, sectional View of a modified door assembly substantially as taken along the line II-II in FIG. 1.
  • the terms upper, lower, left, right and words of similar import Will have reference to the door-supporting apparatus and door assembly as appearing in FIG. l.
  • the terms interior or rear and exterior or front will have reference to the right and left sides, respectively, of the door and associated parts as appearing in FIG. 2.
  • the terms inner, outer and derivatives thereof will have reference to the geometric center of said door assembly and its supporting apparatus.
  • a pair of spaced, parallel and substantially horizontal tracks which extend away from a well near the upper end of and on opposite sides of an opening in the wall.
  • a pair of substantially upright tracks extend along said opposite sides of said opening from points near the lower end thereof to points near said horizontal tracks.
  • a one-piece door has a pair of rollers mounted near the upper end thereof for rolling engagement with the horizontal tracks and a pair of rollers mounted near the lower end thereof for rolling engagement within the upright tracks.
  • the front ends of the horizontal tracks are curved downwardly and the lower ends of the upright tracks are curved frontwardly, whereby the direction of the linal movement of the dooi into the closed position is downwardly and frontwardly.
  • gravity urges, and thereby holds, the door in a snugly closed position against adjacent portions of the Wall surface surrounding the opening therein.
  • the upwardly acting door assembly 10 is comprised of a one-piece door 11 and track structure 12 adapted to support said door for movement between a substantially horizontal open position and a substantially upright closed position.
  • a counterbalance mechanism 13 is connected to the door 11 for counteracting the force of gravity and thereby facilitating the opening and closing of the door.
  • the door may be opened manually or by a door operator, a fragment of which is indicated at 14 and supported upon the rail structure 16.
  • a door operator capable of performing the opening and closing function is disclosed in a companion application entitled High Speed Door Operator and assigned to the assignee of this application.
  • the door 11 may be of any conventional type adapted to close a substantially rectangular opening 17 in an upright wall 18 and having a threshold 19. That is, the door may be fabricated from metal, wood, glass, plastic material, or any combination of such materials. The door is relatively rigid, but may be somewhat resiliently exible in order to absorb shocks. The door may be insulated for covering the entry to a large walk-in refrigerator or refrigerated room, or it might be insulated against heat where it is desired to use the door for closing and opening in a re wall.
  • the marginal portions of the sides and top of the door overlie the portions of the wall 18k defining the side and top edges of the opening 17.
  • a seal 22 (FIGS. 1, 2 and 3), which is preferably fabricated from a resiliently flexible material, such as rubber or plastic, is mounted either along the edge portions of the interior surface 21 of the wall or upon the marginal portion of the door so that it is compressed between these two portions when the door is in its closed position of FIG. 2. As shown in FIG. 3, the door 11 engages the seal 22 slightly before it reaches its closed, broken-line position of 22A.
  • An elongated seal 20 of any conventional type is mounted upon the lower edges of the door 11 for sealing engagement with the threshold 19 when the door 11 is in the closed position of FIG. 2.
  • a pair of upright tracks 23 and 24 (FIG. l) are mounted upon the interior surface 21 of the wall 18 preferably adjacent the side edges of the door 11, when it is in its closed position, by means of brackets 26 and 27, respectively.
  • the major and upper portions of the rails 23 and 24 are spaced rearwardly from the wall 18, but the lower end portions 28 and 29 are curved inwardly, as shown in lFIGS. 2 and 3, toward the wall 18 for reasons discussed hereinafter.
  • a pair of substantially horizontal tracks 32 and 33 (FIGS. 1, 2 and 4) are mounted on the interior side of lthe wall 18 at their front ends by means of brackets 34 and 3S, respectively.
  • the rearward and intermediate portions of the tracks 32 and 33 are suspended from the ceiling 37, for example, by hangers 38.
  • the tracks 32 and 33 are parallel and they extend rearwardly from points directly above the upright tracks 23 and 24.
  • the front end portions 41 and 42 (FIGS. 4 and 2, respectively) of the tracks 32 and 33 are curved downwardly for reasons discussed hereinafter.
  • the tracks 23, 24 and 32, 33 preferably have substantially identical C-shaped cross sections.
  • the upright tracks 23 and 24 have grooved flanges 43 and 44 on their front sides and the tracks 32 and 33 have grooved flanges 46 and 47 on their lower sides.
  • a pair of upper rollers 48 and 49 are mounted upon shafts 52 and 53, respectively, which are supported in brackets 54 and 55 secured to the interior surface of the door 11 at the opposite ends of the upper edge thereof.
  • the rollers 48 and 49 are disposed within the tracks 32 and 33, and are rollingly engaged within the grooved flanges 46 and 47 whereby accidental axial displacement of the rollers from the tracks is positively prevented.
  • a pair of bottom rollers 57 and 58 are mounted on shafts 61 and 62, respectively, which are supported on brackets 63 and ⁇ 64, respectively, secured to the interior surface of the door at the opposite ends of the lower edge of the door.
  • the rollers 57 and 58 are disposed respectively within the tracks 23 and 24 and are prevented from axial disengagement from within said tracks by the grooved flanges 43 and 44.
  • the counterbalance mechanism 13 is comprised of a pair of preferably coaxial shafts 67 and 68 which are rotatably supported near their remote ends in the outer bearings 71 and 72 (FIG. l) which are mounted upon the interior surface 21 of the wall 18 by the brackets 34 to the interior surface 21 of the wall 1S.
  • a pair of conical pulleys 81 and 82 are secured to and rotatable with the remote ends of the shafts 67 and y68, respectively, and they have spiral grooves 83 and 84, respectively, in which cables 86 and 87, respectively, are received when the door is in its raised position of FIG. 4.
  • the cable 86 for example, is secured at one end to the pulley 81 near its largest diameter and at its other end to the lower end of the corresponding edge of the door 11.
  • the shafts v67 and 68 are encircled by elongated spiral springs 88 and 89, respectively, which are secured near their remote ends to the shafts 67 and 68 by locking collars 92 and 93, respectively.
  • the adjacent inner ends of said springs 88 and 89 (FIG. 5) are anchored on the bearing supports 76 and 77, respectively.
  • the springs 88 and 89 are arranged so that they are tightened on the shafts 67 and 68 as the door is moved from its raised position (FIG. 4) to its lowered position (FIG. 2) thereby increasing the resistance of the springs to such downward movement as the effect of gravity on the lower edge of said door increases.
  • the shafts 67 and 68 are interconnected at their adjacent ends by a flanged coupling 94, and a sprocket 96 is secured to the shaft 68 for rotation therewith.
  • the sprocket 96 is engaged by a chain 97, in this particular embodiment, which is connected to the operator 14 for the purpose of coordinating rotation of the shafts 67 and 68, hence the cables 86 and 87, with the movement of the operator 14, hence the door 11. Further details with respect to the door operator, its associated parts and its operation are set forth in said companion application.
  • the rail structure 16 comprises a pair of rails 98 and 99 which are mounted at their front ends upon the plate 78 and are supported intermediate their ends by a crossbar 102 extending between and secured to a pair of hangers 38 (FIG. 2).
  • the operator 14 is mounted upon and movable along the rails 98 and 99 as it opens and closes the door 11.
  • the rollers 48, 49 and 57, 58 will then be in substantially straight parts of the tracks 32, 33 and 23, 24, respectively. Accordingly, the door will then move into its opened position of FIG. 4 in a relatively conventional manner. That is, the upper end of the door is moved rearwardly by the operator 14 and the lower end of the door is moved upwardly.
  • the cables 86 and 87 are wound upon the pulleys 81 and 82, respectively, which are rotated in the winding direction by the action of the springs 88 and 89 on the shafts 67 and 68.
  • the operation during the initial stages of the closing of the door 11 may also be substantially conventional. However, just before the door reaches its closed position, the rollers supporting the door will move into the curved end portions of the tracks 23, 24 and 32, 33 whereby both the upper and the lower ends of the door will be moved substantially simultaneously in a downward and frontward direction. As a result, the seal 22 will be compressed between the door 11 and the wall 18, and the seal will be compressed between the lower edge of the door and the threshold 19; This compression of the seals 20 and 22 will continue automatically under the urging of gravity.
  • the inclination of the curved portions 41, 42 is such (about 30 degrees) that the opening movement can be eifected manually by a normal adult, if the door is of average size.
  • the front portions of the horizontal tracks 32 and 33 are curved upwardly and rearwardly, there will be no chance for the tracks to lock the door in its closed position.
  • Accidental locking by the tracks can occur where the operator is not functioning since it must iirst move the upper end of the door horizontally. In a relatively large conventional door, it may be difficult to reach the upper end of the door for manual operation.
  • the curved portions 41 and 42 the door 11 can be opened by grasping the lower end of the door and raising it.
  • FIG. 6 illustrates a door 11A mounted within the opening 17A in a wall 18A. This arrangement can be accomplished by moving the upright tracks, one of which is shown at 24A, closer to the wall 18A and using a larger bracket 64A to mount the shaft 62A on the door 11A.
  • the sealing element 22A extends around the entire peripheral adge of the door.
  • the lower surface 106 of the lintel for the opening 17 is sloped upwardly toward the interior of the refrigerated room.
  • the upper edge of the door 11A may be sloped infa corresponding manner.
  • the operation of the modified door 11A will be essentially identical with the operation of the door 11, except that the door 11A may have its interior surface ush with the interior surface of the wall 18A. It follows, of course, that the exterior side of the door 11A can be flush with the exterior surface of the wall 18A by appropriate adjustment in the location of the tracks and rollers with respect to the door and the wall.
  • FIG. 8 illustrates a cross-sectional view of a modified apparatus 110 for supporting a door 11B which moves substantially vertically between its opened and closed positions.
  • the apparatus 110 includes lower tracks, one of which is shown at 24B, which tracks may be identical with the tracks 23 and 24 disclosed in FIG. 2 and described above.
  • a roller 58B is mounted upon the lower end of the door 11B for guiding movement of the lower end of the door 11B along the track 24B.
  • a roller 49B is mounted upon the upper end of the door 11B about as the roller 49 is mounted upon the door 11.
  • the roller 49B is disposed within a track 111 which also resembles the track 24.
  • the track 111 has a lower portion 112 which curves frontwardly toward the header 113 of the door opening 17B while the remainder of the track 111 extends upwardly at a slightly diverging angle with the wall 18B.
  • the door 11B is raised by means including the cable 86B and the pulley 82B mounted on the shaft 67B.
  • the shaft 67B can be positively driven by means not shown for raising and lowering the door.
  • lA structure adapted to support a one-piece, upwardly acting door for movement between an opened position and a closed, substantially upright position adjacent the edges of wall means defining an opening closed -by said door when in said closed position, comprising:
  • resiliently flexible seal means engageable by and coacting between said wall means and said door along the full extent of the top, bottom and opposite side edges of said door when said door is in the closed position for sealingly closing said opening.
  • a door structure adapted to cooperate with an opening formed in wall means comprising:
  • a one-piece, upwardly acting door for movement between an opened substantially horizontal position and a closed substantially upright position adjacent the edges of said wall means defining said opening, the opening being closed by said door when in said upright position;
  • rollers mounted on said door near the upper and lower ends thereof, the upper rollers being engaged in said horizontal tracks for rolling movement therealong and the lower rollers being engaged in said upright tracks for rolling movement therealong, the rollers being positioned within the arcuate end portions of the tracks when the door is in the upright closed position;
  • resiliently flexible seal means engageable by and between said wall means and said door along the full extent of said edges dening said opening when said door is in the closed upright position
  • counterbalance means operatively connected to the door for counteracting the force of gravity and facilitating the opening and closing of the door, said counterbalance means including spring biased pulley means mounted on said wall means above said opening and cable means connected at one end to said door near the lower end thereof, the other end of said cable means being connected to said pulley means so that movement of said door from said horizontal position into said upright position ⁇ is yieldably op- 4.
  • said resiliently flexible seal means includes an elongated resilient seal member tixedly secured to and extending longitudinally along the complete length of the lower edge of said door.
  • a door structure according to claim 4 further including operator means interconnected to said door for permitting same to be automatically moved between said opened and closed positions.
  • a door structure wherein a shaft is rotatably supported on said'wall means directly above said opening, said counterbalance means including a pulley nonrotatably mounted on said shaft and a torsion spring having one end thereof xedly secured relative to said wall means and the other end thereof nonrotatably secured relative to said shaft, and said operator means including a pulley means nonrotatably secured to said shaft and an elongated flexible drive member disposed in driving engagement with said pulley means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Support Devices For Sliding Doors (AREA)
US825220A 1969-05-16 1969-05-16 Door assembly Expired - Lifetime US3568365A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82522069A 1969-05-16 1969-05-16

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Publication Number Publication Date
US3568365A true US3568365A (en) 1971-03-09

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US825220A Expired - Lifetime US3568365A (en) 1969-05-16 1969-05-16 Door assembly

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US (1) US3568365A (de)
DE (1) DE2023718A1 (de)
GB (1) GB1291892A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733436A (en) * 1985-06-17 1988-03-29 Exemplar, Inc. Door mechanism spring assembly
US4765093A (en) * 1987-03-09 1988-08-23 Edwards Jr Charles P Overhead tilt door
US4765026A (en) * 1985-06-17 1988-08-23 Exemplar, Inc. Door mechanism spring assembly
US5341597A (en) * 1993-01-22 1994-08-30 Stoltenberg Donald A Power operated garage door
US5572829A (en) * 1995-06-29 1996-11-12 Stoltenberg; Donald A. Power operated garage door
DE19630266A1 (de) * 1996-07-26 1998-01-29 Siebau Toraggregat mit verwindungssteifem Torblatt und Führungsschienenzarge
DE19947725A1 (de) * 1999-10-05 2001-04-19 Ems Isoliertueren Mickeleit Gm Hubtor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3610967A1 (de) * 1986-04-02 1987-10-08 Schmidt Werner Tor zum verschliessen einer wandoeffnung
DE9111721U1 (de) * 1991-09-19 1992-10-22 Siemens Ag, 8000 Muenchen, De

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733436A (en) * 1985-06-17 1988-03-29 Exemplar, Inc. Door mechanism spring assembly
US4765026A (en) * 1985-06-17 1988-08-23 Exemplar, Inc. Door mechanism spring assembly
US4765093A (en) * 1987-03-09 1988-08-23 Edwards Jr Charles P Overhead tilt door
US5341597A (en) * 1993-01-22 1994-08-30 Stoltenberg Donald A Power operated garage door
US5572829A (en) * 1995-06-29 1996-11-12 Stoltenberg; Donald A. Power operated garage door
DE19630266A1 (de) * 1996-07-26 1998-01-29 Siebau Toraggregat mit verwindungssteifem Torblatt und Führungsschienenzarge
DE19630266C2 (de) * 1996-07-26 1998-06-04 Siebau Toraggregat
DE19947725A1 (de) * 1999-10-05 2001-04-19 Ems Isoliertueren Mickeleit Gm Hubtor

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Publication number Publication date
DE2023718A1 (de) 1970-11-19
GB1291892A (en) 1972-10-04

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