CA1146415A - Balanced door - Google Patents
Balanced doorInfo
- Publication number
- CA1146415A CA1146415A CA000374908A CA374908A CA1146415A CA 1146415 A CA1146415 A CA 1146415A CA 000374908 A CA000374908 A CA 000374908A CA 374908 A CA374908 A CA 374908A CA 1146415 A CA1146415 A CA 1146415A
- Authority
- CA
- Canada
- Prior art keywords
- door
- jamb
- secured
- side jamb
- bight portion
- 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
Links
Landscapes
- Wing Frames And Configurations (AREA)
Abstract
Abstract of the Disclosure An entrance door having its top and bottom rails pivotally connected with arms supported for rotation by a shaft bearing journalled in the door jamb. The door jamb includes a tension member preventing distortion of the door jamb and displacement of the shaft supporting thrust bearing by the mass of the door thus insuring free swinging door movement.
Description
l.S
1 The present invention relates to door mountings or supports
1 The present invention relates to door mountings or supports
2 and more particularly to maintaining a door supporting door jamb
3 plumb for free swinging opening and closing movement of the door,
4 One-piece glass entryway doors or entrance doors, having a metal frame enclosing a substantially full length glass panel and 6 pivotally connected by arms with a door jamb for swinging movement 7 in one direction, are commonly used. However, the mass of these 8 doors is such that they present a maintenance problem at the de-9 pending end of tne door jamb connected end of the door by a failure of the bearings or bearing material and a tendency to bow 11 or deform the depending end portion of the supporting door jamb 12 in a direction away from the door. This results in a binding 13 action of the door marginal edges against the members for~ling the 14 door opening thus failing to maintain the door in a balanced con-dition for easily pivoting on its mounts in an opening and closing 16 action.
17 I have fOund that this disadvantage may be overcome by rein-18 forcing the door jamb supporting the door by a tension member con-19 nected with the door jamb end portions to maintain the door jamb vertical and the door in a balanced condition at all times.
21 In the preferred embodiment, an entryway door is pivotally 22 connected at its top and bottom rails witn one end of a pair of 23 arms nested by recesses in one side of the door rails and rigidly 24 connected at their other ends with a shaft extending vertically within a door side jamb. A plurality of vertically spaced bearings 26 within the door jamb support the shaft for rotation about its 27 vertical axis with a tnrust bearing supporting the shaft at the 2~3 depending end of the door jamb. An elongated tension member is 29 connected with the upper and lower end portions of the inner sur-face of the door jamb opposite the door and entrained in bow 31 string fashion across the several bearings to prevent the mass of 32 the door forcing the depending end portion of the door jamb and 1 thrust bearing out of vertical alignment.
2 In the drawings which illustrate embodiments of the invention.
3 Figure 1 is a ~ragmentary elevational view of a door mounted 4 in an entrance way for swinging movement in one direction;
Figure 2 is a horizontal sectional view, to a larger scale, 6 taken substantially along the line 2- -2 of Fig. l;
7 Figure 3 is a vertical cross sectional view, to a different 8 scale, partially in elevation, taken substantially along the line 9 3---3 of Fig. 2, Figure 4 is a vertical cross sectional view taken substan-11 tially along the line 4---4 of Fig. 3;
12 Figure 5 is a fragmentary horizontal sectional view taken 13 substantially along the line 5---5 of Fig. l;
14 Figure 6 is a fragmentary elevational view of the top portion of the door opposite the side shown by Fig. l;
16 Figure 7 is a top view of Fig. 6, with parts broken away for 17 clarity, and illustrating, by dotted lines, the open position of 18 the door; and, 19 Figure 8 is a fragmentary vertical cross sectional view taken substantially along the llne 8---8 of Fig. 1.
21 In the drawings the reerence numeral 10 indicates a door 22 mounted for swinging movement in a door frame 12. The door frame 23 12 comprises door side jambs 14 and 16,interconnected at their 24 upper ends by a head jamb 18,ioined at their depending ends by a threshold 20. The door 10 comprises upper and lower rails 22 and 26 24 joined by stiles 26 and 28 enclosing a door glass 30. The 27 door jamb 14, abutting a wall 31, is elongated channel-like pre-28 ~erably having a 7.62cm to 11.43cm wide bight portion 32 opposite 29 the door stile 26 and 4~45cm face surface legs 34 and 36 project-ing toward the door and bridged by a cover pla~e 38. The length 31 of the cover plate 38 is substantially equal with the height or 32 the door 1~. The door stile 26 is provided with a coextensive 33 groove 40 for receiving a strip o~ resilient ~iber material 42 s 1 for sealing with the cover plate 38 when the door is in closed 2 position.
3 A plurality of bearing members, four in the example shown, 4 44, 46, 48 and 50, extend horizontally between the door jamb legs 34 and 36 in vertical spaced-apart relation with two of the bear-6 ings 44 and 50 being disposed at the upper and lower end portions 7 of the door jamb. Each of the bearing members 44-50 are charac-8 terized by a pair of rectangular bearing block members 52 and 54.
9 The bearing block member 52 is secured to the inner surface of the door jamb bight portion 32 by screws 56. The opposite edge of 11 the bearing block member 52 is recessed, as at 58, for receiving 12 the block member 54 which is secured therein by other screws 60.
13 The two bearing blocks 52 and 54 are vertically drilled, at their 14 juncture, for receiving a sleeve bearing 62 which journals an elongated shaft 64 substantially coextensive with the door jamb 16 14.- The depending end of the shaft 64 is supported by a thrust 17 bearing 66.
18 A pair of arms 68 and 70 are respectively pivotally connect-19 ed at one end with a common side of the door rails 22 and 24 in vertical alignment, as at 72 and 74, and project at their other 21 end portions into the door jamb 14 through suitable openings 75 22 (Fig. 5), only one being shown, formed in the respective end por-23 tion of the door jamb cover plate 38 and are secured to the re-24 spective upper and lower end portions of the shaft 64. The arms 68 and 70 are nested by horizontal recesses 76 and 78, formed in 26 the upper and lower limit of the respective door rails, when the 27 door is in closed position~
28 In its opening and closlng movement, the door pivots on the 29 vertical axis formed by the arm to doo~ rail pivot positions 72 and 74 while the other end portion of the arms pivot in the 31 direction of the arrow 8~ with the shaft 64 about its axis. The 32 shaft connected end of each arm 68 and 70 is provided with a 33 recess 82 permitting the respective arm to be disposed perpendic-s 1 ular to the plan~ of the wall 31 when the door is in fully open 2 position, as shown by dotted lines (Figs. 5 and 7).
3 The door jamb 14 is provided with a tension means 84 compris-4 ing an elongated member, such as a cable 86, adjustably secured, as by a threaded bolt 87 secured to one end o~ the cable, with 6 angle brackets 88 and 90, respectively, connected with the inner 7 surface of the æoor jamb bight portion 32 at the upper and lower 8 end portions of the door jamb. The cable 86 is entrained tautly 9 across the intermediate bearings 46 and 48 and a spacer block 92 interposed between the cable and the inner surface of the door ll jamb bight portion 32 intermediate the spacing between the bear-12 ings 46 and 48. As best illustrated by Fig. 4, the cable is thus 13 bowed outwardly of the door jamb bight portion 32 beyond the 14 vertical plane defined by the surface of the bearing blocks 52 opposite the bight portion 3~ toward the door stile 2Ç between 16 the respective ends of the door jamb thus tending to pull the re 17 spective end portions of the door jamb toward the door and pre-18 venting the mass of the door tending to force the thrust bearing 19 66 and depending end portion of the door jamb 14 toward the wall 31. In the event the door lO sags, as by binding against the 21 side jamb 16 or threshold 20, the tension on the cable 86 is in-22 creased to restore the balanced door condition.
23 The door is further provided with a guide bearing or roller 24 94 secured to the upper limit of its top rail 22 and projecting upwardly into the head jamb 18 to form a vertical axis for hori-26 zontal pivoting movement of the door. The head jamb closing 27 plate 98 is provided with a slot 100 extending longitudinally 28 substantially one-half the width of the door and further includes 29 an inverted U-shaped channel member 102 forming a guide track or slot for ttle roller 94 during opening and closing movement of the 31 door.
32 The door ls preferably further provided with an opening and 33 closing mechanism 104, comprising a motor 106 secured to the lS
1 header 107 above the head jamb 18 and operatively connected with 2 a gear train 108 connected by linkage 110 with the uppermost door 3 rail 22 opposite the position of the arm 68 and on the opposite 4 side of the door. The motor 106 is connected by wiring with a source of electrical energy, neither being shown, and preferably 6 automatically opened and closed in a conventional manner, for ex-7 ample, by a foot pressure operated switch or photoelectric cell, 8 not shown.
17 I have fOund that this disadvantage may be overcome by rein-18 forcing the door jamb supporting the door by a tension member con-19 nected with the door jamb end portions to maintain the door jamb vertical and the door in a balanced condition at all times.
21 In the preferred embodiment, an entryway door is pivotally 22 connected at its top and bottom rails witn one end of a pair of 23 arms nested by recesses in one side of the door rails and rigidly 24 connected at their other ends with a shaft extending vertically within a door side jamb. A plurality of vertically spaced bearings 26 within the door jamb support the shaft for rotation about its 27 vertical axis with a tnrust bearing supporting the shaft at the 2~3 depending end of the door jamb. An elongated tension member is 29 connected with the upper and lower end portions of the inner sur-face of the door jamb opposite the door and entrained in bow 31 string fashion across the several bearings to prevent the mass of 32 the door forcing the depending end portion of the door jamb and 1 thrust bearing out of vertical alignment.
2 In the drawings which illustrate embodiments of the invention.
3 Figure 1 is a ~ragmentary elevational view of a door mounted 4 in an entrance way for swinging movement in one direction;
Figure 2 is a horizontal sectional view, to a larger scale, 6 taken substantially along the line 2- -2 of Fig. l;
7 Figure 3 is a vertical cross sectional view, to a different 8 scale, partially in elevation, taken substantially along the line 9 3---3 of Fig. 2, Figure 4 is a vertical cross sectional view taken substan-11 tially along the line 4---4 of Fig. 3;
12 Figure 5 is a fragmentary horizontal sectional view taken 13 substantially along the line 5---5 of Fig. l;
14 Figure 6 is a fragmentary elevational view of the top portion of the door opposite the side shown by Fig. l;
16 Figure 7 is a top view of Fig. 6, with parts broken away for 17 clarity, and illustrating, by dotted lines, the open position of 18 the door; and, 19 Figure 8 is a fragmentary vertical cross sectional view taken substantially along the llne 8---8 of Fig. 1.
21 In the drawings the reerence numeral 10 indicates a door 22 mounted for swinging movement in a door frame 12. The door frame 23 12 comprises door side jambs 14 and 16,interconnected at their 24 upper ends by a head jamb 18,ioined at their depending ends by a threshold 20. The door 10 comprises upper and lower rails 22 and 26 24 joined by stiles 26 and 28 enclosing a door glass 30. The 27 door jamb 14, abutting a wall 31, is elongated channel-like pre-28 ~erably having a 7.62cm to 11.43cm wide bight portion 32 opposite 29 the door stile 26 and 4~45cm face surface legs 34 and 36 project-ing toward the door and bridged by a cover pla~e 38. The length 31 of the cover plate 38 is substantially equal with the height or 32 the door 1~. The door stile 26 is provided with a coextensive 33 groove 40 for receiving a strip o~ resilient ~iber material 42 s 1 for sealing with the cover plate 38 when the door is in closed 2 position.
3 A plurality of bearing members, four in the example shown, 4 44, 46, 48 and 50, extend horizontally between the door jamb legs 34 and 36 in vertical spaced-apart relation with two of the bear-6 ings 44 and 50 being disposed at the upper and lower end portions 7 of the door jamb. Each of the bearing members 44-50 are charac-8 terized by a pair of rectangular bearing block members 52 and 54.
9 The bearing block member 52 is secured to the inner surface of the door jamb bight portion 32 by screws 56. The opposite edge of 11 the bearing block member 52 is recessed, as at 58, for receiving 12 the block member 54 which is secured therein by other screws 60.
13 The two bearing blocks 52 and 54 are vertically drilled, at their 14 juncture, for receiving a sleeve bearing 62 which journals an elongated shaft 64 substantially coextensive with the door jamb 16 14.- The depending end of the shaft 64 is supported by a thrust 17 bearing 66.
18 A pair of arms 68 and 70 are respectively pivotally connect-19 ed at one end with a common side of the door rails 22 and 24 in vertical alignment, as at 72 and 74, and project at their other 21 end portions into the door jamb 14 through suitable openings 75 22 (Fig. 5), only one being shown, formed in the respective end por-23 tion of the door jamb cover plate 38 and are secured to the re-24 spective upper and lower end portions of the shaft 64. The arms 68 and 70 are nested by horizontal recesses 76 and 78, formed in 26 the upper and lower limit of the respective door rails, when the 27 door is in closed position~
28 In its opening and closlng movement, the door pivots on the 29 vertical axis formed by the arm to doo~ rail pivot positions 72 and 74 while the other end portion of the arms pivot in the 31 direction of the arrow 8~ with the shaft 64 about its axis. The 32 shaft connected end of each arm 68 and 70 is provided with a 33 recess 82 permitting the respective arm to be disposed perpendic-s 1 ular to the plan~ of the wall 31 when the door is in fully open 2 position, as shown by dotted lines (Figs. 5 and 7).
3 The door jamb 14 is provided with a tension means 84 compris-4 ing an elongated member, such as a cable 86, adjustably secured, as by a threaded bolt 87 secured to one end o~ the cable, with 6 angle brackets 88 and 90, respectively, connected with the inner 7 surface of the æoor jamb bight portion 32 at the upper and lower 8 end portions of the door jamb. The cable 86 is entrained tautly 9 across the intermediate bearings 46 and 48 and a spacer block 92 interposed between the cable and the inner surface of the door ll jamb bight portion 32 intermediate the spacing between the bear-12 ings 46 and 48. As best illustrated by Fig. 4, the cable is thus 13 bowed outwardly of the door jamb bight portion 32 beyond the 14 vertical plane defined by the surface of the bearing blocks 52 opposite the bight portion 3~ toward the door stile 2Ç between 16 the respective ends of the door jamb thus tending to pull the re 17 spective end portions of the door jamb toward the door and pre-18 venting the mass of the door tending to force the thrust bearing 19 66 and depending end portion of the door jamb 14 toward the wall 31. In the event the door lO sags, as by binding against the 21 side jamb 16 or threshold 20, the tension on the cable 86 is in-22 creased to restore the balanced door condition.
23 The door is further provided with a guide bearing or roller 24 94 secured to the upper limit of its top rail 22 and projecting upwardly into the head jamb 18 to form a vertical axis for hori-26 zontal pivoting movement of the door. The head jamb closing 27 plate 98 is provided with a slot 100 extending longitudinally 28 substantially one-half the width of the door and further includes 29 an inverted U-shaped channel member 102 forming a guide track or slot for ttle roller 94 during opening and closing movement of the 31 door.
32 The door ls preferably further provided with an opening and 33 closing mechanism 104, comprising a motor 106 secured to the lS
1 header 107 above the head jamb 18 and operatively connected with 2 a gear train 108 connected by linkage 110 with the uppermost door 3 rail 22 opposite the position of the arm 68 and on the opposite 4 side of the door. The motor 106 is connected by wiring with a source of electrical energy, neither being shown, and preferably 6 automatically opened and closed in a conventional manner, for ex-7 ample, by a foot pressure operated switch or photoelectric cell, 8 not shown.
Claims (5)
1. In an entryway door having stiles and top and bottom rails and having a pair of arms pivotally connected with the respective rails intermediate their ends for horizontal swinging movement of the door about a vertical axis and projecting horizontally into a door side jamb formed by a channel member coextensive With the ad-jacent door stile and having the legs of the channel projecting from its bight portion toward the door, the improvement comprising a shaft disposed within the side jamb coextensive with the door height and rigidly connected at its respective end portions with said arms, a plurality of vertically spaced bearings secured with-in said jamb and journalling intermediate portions and respective end portions of said shaft, each said bearing being characteriz-ed by a bearing block extending transversely between the side jamb legs and secured to the side jamb bight portion, and, tension means connected with said side jamb for maintaining the latter vertical, said tension means including a pair of angle brackets secured to the surface of the side jamb bight portion facing said door adjacent its respective ends, an elongated flexible member secured to and extending tautly between said angle brackets in overlying relation with respect to at least one said bearing block, and, screw threaded bolt means on at least one end of said flex-ible member for increasing or decreasing its tension.
2. The combination according to claim 1 and further includ-ing a cover plate coextensive with the door side jamb channel member and extending transversely between its legs.
3. The combination according to claim 2 and further includ-ing a spacer interposed between said side jamb bight portion and said flexible member intermediate its ends for disposing an inter-mediate portion of said flexible member beyond the vertical plane defined by the surface of said bearing blocks facing said door.
4. The combination according to claim 2 or 3 and further in-cluding a head jamb overlying said door and having a downwardly open guide slot, and, a roller secured to said door top rail and projecting into the guide slot for guiding said door toward and away from said door side jamb during its opening and closing move-ment.
5. The combination according to claim 2 or 3 in which the transverse dimension of the side door jamb channel member bight portion is not less than 7.62cm or greater than 11.43cm and the transverse dimension of said side door jamb legs is 4.45cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000374908A CA1146415A (en) | 1981-04-06 | 1981-04-06 | Balanced door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000374908A CA1146415A (en) | 1981-04-06 | 1981-04-06 | Balanced door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1146415A true CA1146415A (en) | 1983-05-17 |
Family
ID=4119672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000374908A Expired CA1146415A (en) | 1981-04-06 | 1981-04-06 | Balanced door |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1146415A (en) |
-
1981
- 1981-04-06 CA CA000374908A patent/CA1146415A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |